text: /**
   * \file
   * Soft Debugger back-end module
   *
   * Author:
   *   Zoltan Varga (vargaz@gmail.com)
   *
   * Copyright 2009-2010 Novell, Inc.
   * Copyright 2011 Xamarin Inc.
   * Licensed under the MIT license. See LICENSE file in the project root for full license information.
   */
  
  #include <config.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #ifdef HAVE_SYS_TYPES_H
  #include <sys/types.h>
  #endif
  #ifdef HAVE_SYS_SELECT_H
  #include <sys/select.h>
  #endif
  #ifdef HAVE_SYS_SOCKET_H
  #include <sys/socket.h>
  #endif
  #ifdef HAVE_NETINET_TCP_H
  #include <netinet/tcp.h>
  #endif
  #ifdef HAVE_NETINET_IN_H
  #include <netinet/in.h>
  #endif
  #ifdef HAVE_UNISTD_H
  #include <unistd.h>
  #endif
  #include <errno.h>
  #include <glib.h>
  
  #ifdef HAVE_PTHREAD_H
  #include <pthread.h>
  #endif
  
  #ifdef HOST_WIN32
  #ifdef _MSC_VER
  #include <winsock2.h>
  #include <process.h>
  #endif
  #include <ws2tcpip.h>
  #include <windows.h>
  #endif
  
  #ifdef HOST_ANDROID
  #include <linux/in.h>
  #include <linux/tcp.h>
  #include <sys/endian.h>
  #endif
  
  #include <mono/metadata/mono-debug.h>
  #include <mono/metadata/debug-internals.h>
  #include <mono/metadata/domain-internals.h>
  #include <mono/metadata/gc-internals.h>
  #include <mono/metadata/environment.h>
  #include <mono/metadata/mono-hash-internals.h>
  #include <mono/metadata/threads-types.h>
  #include <mono/metadata/threadpool.h>
  #include <mono/metadata/assembly.h>
  #include <mono/metadata/assembly-internals.h>
  #include <mono/metadata/runtime.h>
  #include <mono/metadata/verify-internals.h>
  #include <mono/metadata/reflection-internals.h>
  #include <mono/metadata/w32socket.h>
  #include <mono/utils/mono-coop-mutex.h>
  #include <mono/utils/mono-coop-semaphore.h>
  #include <mono/utils/mono-error-internals.h>
  #include <mono/utils/mono-stack-unwinding.h>
  #include <mono/utils/mono-time.h>
  #include <mono/utils/mono-threads.h>
  #include <mono/utils/networking.h>
  #include <mono/utils/mono-proclib.h>
  #include <mono/utils/w32api.h>
  #include <mono/utils/mono-logger-internals.h>
  #include "debugger-state-machine.h"
  #include "debugger-agent.h"
  #include "mini.h"
  #include "seq-points.h"
  #include "aot-runtime.h"
  #include "mini-runtime.h"
  #include "interp/interp.h"
  #include "debugger-engine.h"
  #include "mono/metadata/debug-mono-ppdb.h"
  #include "mono/metadata/custom-attrs-internals.h"
  
  /*
   * On iOS we can't use System.Environment.Exit () as it will do the wrong
   * shutdown sequence.
  */
  #if !defined (TARGET_IOS)
  #define TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
  #endif
  
  #if DISABLE_SOCKETS
  #define DISABLE_SOCKET_TRANSPORT
  #endif
  
  #ifndef DISABLE_SDB
  
  #include <mono/utils/mono-os-mutex.h>
  
  #include <fcntl.h>
  #include <sys/stat.h>
  
  #ifndef S_IWUSR
  	#define S_IWUSR S_IWRITE
  #endif
  
  #define THREAD_TO_INTERNAL(thread) (thread)->internal_thread
  
  #if _MSC_VER
  #pragma warning(disable:4312) // FIXME pointer cast to different size
  #endif
  
  typedef struct {
  	gboolean enabled;
  	char *transport;
  	char *address;
  	int log_level;
  	char *log_file;
  	gboolean suspend;
  	gboolean server;
  	gboolean onuncaught;
  	GSList *onthrow;
  	int timeout;
  	char *launch;
  	gboolean embedding;
  	gboolean defer;
  	int keepalive;
  	gboolean setpgid;
  } AgentConfig;
  
  typedef struct
  {
  	//Must be the first field to ensure pointer equivalence
  	DbgEngineStackFrame de;
  	int id;
  	guint32 il_offset;
  	/*
  	 * If method is gshared, this is the actual instance, otherwise this is equal to
  	 * method.
  	 */
  	MonoMethod *actual_method;
  	/*
  	 * This is the method which is visible to debugger clients. Same as method,
  	 * except for native-to-managed wrappers.
  	 */
  	MonoMethod *api_method;
  	MonoContext ctx;
  	MonoDebugMethodJitInfo *jit;
  	MonoInterpFrameHandle interp_frame;
  	gpointer frame_addr;
  	int flags;
  	host_mgreg_t *reg_locations [MONO_MAX_IREGS];
  	/*
  	 * Whenever ctx is set. This is FALSE for the last frame of running threads, since
  	 * the frame can become invalid.
  	 */
  	gboolean has_ctx;
  } StackFrame;
  
  typedef struct _InvokeData InvokeData;
  
  struct _InvokeData
  {
  	int id;
  	int flags;
  	guint8 *p;
  	guint8 *endp;
  	/* This is the context which needs to be restored after the invoke */
  	MonoContext ctx;
  	gboolean has_ctx;
  	/*
  	 * If this is set, invoke this method with the arguments given by ARGS.
  	 */
  	MonoMethod *method;
  	gpointer *args;
  	guint32 suspend_count;
  	int nmethods;
  
  	InvokeData *last_invoke;
  };
  
  struct _DebuggerTlsData {
  	MonoThreadUnwindState context;
  
  	/* This is computed on demand when it is requested using the wire protocol */
  	/* It is freed up when the thread is resumed */
  	int frame_count;
  	StackFrame **frames;
  	/* 
  	 * Whenever the frame info is up-to-date. If not, compute_frame_info () will need to
  	 * re-compute it.
  	 */
  	gboolean frames_up_to_date;
  	/* 
  	 * Points to data about a pending invoke which needs to be executed after the thread
  	 * resumes.
  	 */
  	InvokeData *pending_invoke;
  	/*
  	 * Set to TRUE if this thread is suspended in suspend_current () or it is executing
  	 * native code.
  	 */
  	gboolean suspended;
  	/*
  	 * Signals whenever the thread is in the process of suspending, i.e. it will suspend
  	 * within a finite amount of time.
  	 */
  	gboolean suspending;
  	/*
  	 * Set to TRUE if this thread is suspended in suspend_current ().
  	 */
  	gboolean really_suspended;
  	/* Used to pass the context to the breakpoint/single step handler */
  	MonoContext handler_ctx;
  	/* Whenever thread_stop () was called for this thread */
  	gboolean terminated;
  
  	/* Whenever to disable breakpoints (used during invokes) */
  	gboolean disable_breakpoints;
  
  	/*
  	 * Number of times this thread has been resumed using resume_thread ().
  	 */
  	guint32 resume_count;
  	guint32 resume_count_internal;
  	guint32 suspend_count;
  
  	MonoInternalThread *thread;
  	intptr_t thread_id;
  
  	/*
  	 * Information about the frame which transitioned to native code for running
  	 * threads.
  	 */
  	StackFrameInfo async_last_frame;
  
  	/*
  	 * The context where the stack walk can be started for running threads.
  	 */
  	MonoThreadUnwindState async_state;
  
  	/*
       * The context used for filter clauses
       */
  	MonoThreadUnwindState filter_state;
  
  	gboolean abort_requested;
  
  	/*
  	 * The current mono_runtime_invoke_checked invocation.
  	 */
  	InvokeData *invoke;
  
  	StackFrameInfo catch_frame;
  	gboolean has_catch_frame;
  
  	/*
  	 * The context which needs to be restored after handling a single step/breakpoint
  	 * event. This is the same as the ctx at step/breakpoint site, but includes changes
  	 * to caller saved registers done by set_var ().
  	 */
  	MonoThreadUnwindState restore_state;
  	/* Frames computed from restore_state */
  	int restore_frame_count;
  	StackFrame **restore_frames;
  
  	/* The currently unloading appdomain */
  	MonoDomain *domain_unloading;
  
  	// The state that the debugger expects the thread to be in
  	MonoDebuggerThreadState thread_state;
  	MonoStopwatch step_time;
  
  	gboolean gc_finalizing;
  };
  
  typedef struct {
  	const char *name;
  	void (*connect) (const char *address);
  	void (*close1) (void);
  	void (*close2) (void);
  	gboolean (*send) (void *buf, int len);
  	int (*recv) (void *buf, int len);
  } DebuggerTransport;
  
  /* 
   * Wire Protocol definitions
   */
  
  #define HEADER_LENGTH 11
  
  #define MAJOR_VERSION 2
  #define MINOR_VERSION 57
  
  typedef enum {
  	CMD_SET_VM = 1,
  	CMD_SET_OBJECT_REF = 9,
  	CMD_SET_STRING_REF = 10,
  	CMD_SET_THREAD = 11,
  	CMD_SET_ARRAY_REF = 13,
  	CMD_SET_EVENT_REQUEST = 15,
  	CMD_SET_STACK_FRAME = 16,
  	CMD_SET_APPDOMAIN = 20,
  	CMD_SET_ASSEMBLY = 21,
  	CMD_SET_METHOD = 22,
  	CMD_SET_TYPE = 23,
  	CMD_SET_MODULE = 24,
  	CMD_SET_FIELD = 25,
  	CMD_SET_EVENT = 64,
  	CMD_SET_POINTER = 65
  } CommandSet;
  
  typedef enum {
  	SUSPEND_POLICY_NONE = 0,
  	SUSPEND_POLICY_EVENT_THREAD = 1,
  	SUSPEND_POLICY_ALL = 2
  } SuspendPolicy;
  
  typedef enum {
  	ERR_NONE = 0,
  	ERR_INVALID_OBJECT = 20,
  	ERR_INVALID_FIELDID = 25,
  	ERR_INVALID_FRAMEID = 30,
  	ERR_NOT_IMPLEMENTED = 100,
  	ERR_NOT_SUSPENDED = 101,
  	ERR_INVALID_ARGUMENT = 102,
  	ERR_UNLOADED = 103,
  	ERR_NO_INVOCATION = 104,
  	ERR_ABSENT_INFORMATION = 105,
  	ERR_NO_SEQ_POINT_AT_IL_OFFSET = 106,
  	ERR_INVOKE_ABORTED = 107,
  	ERR_LOADER_ERROR = 200, /*XXX extend the protocol to pass this information down the pipe */
  } ErrorCode;
  
  typedef enum {
  	TOKEN_TYPE_STRING = 0,
  	TOKEN_TYPE_TYPE = 1,
  	TOKEN_TYPE_FIELD = 2,
  	TOKEN_TYPE_METHOD = 3,
  	TOKEN_TYPE_UNKNOWN = 4
  } DebuggerTokenType;
  
  typedef enum {
  	VALUE_TYPE_ID_NULL = 0xf0,
  	VALUE_TYPE_ID_TYPE = 0xf1,
  	VALUE_TYPE_ID_PARENT_VTYPE = 0xf2,
  	VALUE_TYPE_ID_FIXED_ARRAY = 0xf3
  } ValueTypeId;
  
  typedef enum {
  	FRAME_FLAG_DEBUGGER_INVOKE = 1,
  	FRAME_FLAG_NATIVE_TRANSITION = 2
  } StackFrameFlags;
  
  typedef enum {
  	INVOKE_FLAG_DISABLE_BREAKPOINTS = 1,
  	INVOKE_FLAG_SINGLE_THREADED = 2,
  	INVOKE_FLAG_RETURN_OUT_THIS = 4,
  	INVOKE_FLAG_RETURN_OUT_ARGS = 8,
  	INVOKE_FLAG_VIRTUAL = 16
  } InvokeFlags;
  
  typedef enum {
  	BINDING_FLAGS_IGNORE_CASE = 0x70000000,
  } BindingFlagsExtensions;
  
  typedef enum {
  	CMD_VM_VERSION = 1,
  	CMD_VM_ALL_THREADS = 2,
  	CMD_VM_SUSPEND = 3,
  	CMD_VM_RESUME = 4,
  	CMD_VM_EXIT = 5,
  	CMD_VM_DISPOSE = 6,
  	CMD_VM_INVOKE_METHOD = 7,
  	CMD_VM_SET_PROTOCOL_VERSION = 8,
  	CMD_VM_ABORT_INVOKE = 9,
  	CMD_VM_SET_KEEPALIVE = 10,
  	CMD_VM_GET_TYPES_FOR_SOURCE_FILE = 11,
  	CMD_VM_GET_TYPES = 12,
  	CMD_VM_INVOKE_METHODS = 13,
  	CMD_VM_START_BUFFERING = 14,
  	CMD_VM_STOP_BUFFERING = 15
  } CmdVM;
  
  typedef enum {
  	CMD_THREAD_GET_FRAME_INFO = 1,
  	CMD_THREAD_GET_NAME = 2,
  	CMD_THREAD_GET_STATE = 3,
  	CMD_THREAD_GET_INFO = 4,
  	CMD_THREAD_GET_ID = 5,
  	CMD_THREAD_GET_TID = 6,
  	CMD_THREAD_SET_IP = 7,
  	CMD_THREAD_ELAPSED_TIME = 8
  } CmdThread;
  
  typedef enum {
  	CMD_EVENT_REQUEST_SET = 1,
  	CMD_EVENT_REQUEST_CLEAR = 2,
  	CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS = 3
  } CmdEvent;
  
  typedef enum {
  	CMD_COMPOSITE = 100
  } CmdComposite;
  
  typedef enum {
  	CMD_APPDOMAIN_GET_ROOT_DOMAIN = 1,
  	CMD_APPDOMAIN_GET_FRIENDLY_NAME = 2,
  	CMD_APPDOMAIN_GET_ASSEMBLIES = 3,
  	CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY = 4,
  	CMD_APPDOMAIN_CREATE_STRING = 5,
  	CMD_APPDOMAIN_GET_CORLIB = 6,
  	CMD_APPDOMAIN_CREATE_BOXED_VALUE = 7,
  	CMD_APPDOMAIN_CREATE_BYTE_ARRAY = 8,
  } CmdAppDomain;
  
  typedef enum {
  	CMD_ASSEMBLY_GET_LOCATION = 1,
  	CMD_ASSEMBLY_GET_ENTRY_POINT = 2,
  	CMD_ASSEMBLY_GET_MANIFEST_MODULE = 3,
  	CMD_ASSEMBLY_GET_OBJECT = 4,
  	CMD_ASSEMBLY_GET_TYPE = 5,
  	CMD_ASSEMBLY_GET_NAME = 6,
  	CMD_ASSEMBLY_GET_DOMAIN = 7,
  	CMD_ASSEMBLY_GET_METADATA_BLOB = 8,
  	CMD_ASSEMBLY_GET_IS_DYNAMIC = 9,
  	CMD_ASSEMBLY_GET_PDB_BLOB = 10,
  	CMD_ASSEMBLY_GET_TYPE_FROM_TOKEN = 11,
  	CMD_ASSEMBLY_GET_METHOD_FROM_TOKEN = 12,
  	CMD_ASSEMBLY_HAS_DEBUG_INFO = 13
  } CmdAssembly;
  
  typedef enum {
  	CMD_MODULE_GET_INFO = 1,
  } CmdModule;
  
  typedef enum {
  	CMD_FIELD_GET_INFO = 1,
  } CmdField;
  
  typedef enum {
  	CMD_METHOD_GET_NAME = 1,
  	CMD_METHOD_GET_DECLARING_TYPE = 2,
  	CMD_METHOD_GET_DEBUG_INFO = 3,
  	CMD_METHOD_GET_PARAM_INFO = 4,
  	CMD_METHOD_GET_LOCALS_INFO = 5,
  	CMD_METHOD_GET_INFO = 6,
  	CMD_METHOD_GET_BODY = 7,
  	CMD_METHOD_RESOLVE_TOKEN = 8,
  	CMD_METHOD_GET_CATTRS = 9,
  	CMD_METHOD_MAKE_GENERIC_METHOD = 10
  } CmdMethod;
  
  typedef enum {
  	CMD_TYPE_GET_INFO = 1,
  	CMD_TYPE_GET_METHODS = 2,
  	CMD_TYPE_GET_FIELDS = 3,
  	CMD_TYPE_GET_VALUES = 4,
  	CMD_TYPE_GET_OBJECT = 5,
  	CMD_TYPE_GET_SOURCE_FILES = 6,
  	CMD_TYPE_SET_VALUES = 7,
  	CMD_TYPE_IS_ASSIGNABLE_FROM = 8,
  	CMD_TYPE_GET_PROPERTIES = 9,
  	CMD_TYPE_GET_CATTRS = 10,
  	CMD_TYPE_GET_FIELD_CATTRS = 11,
  	CMD_TYPE_GET_PROPERTY_CATTRS = 12,
  	CMD_TYPE_GET_SOURCE_FILES_2 = 13,
  	CMD_TYPE_GET_VALUES_2 = 14,
  	CMD_TYPE_GET_METHODS_BY_NAME_FLAGS = 15,
  	CMD_TYPE_GET_INTERFACES = 16,
  	CMD_TYPE_GET_INTERFACE_MAP = 17,
  	CMD_TYPE_IS_INITIALIZED = 18,
  	CMD_TYPE_CREATE_INSTANCE = 19,
  	CMD_TYPE_GET_VALUE_SIZE = 20
  } CmdType;
  
  typedef enum {
  	CMD_STACK_FRAME_GET_VALUES = 1,
  	CMD_STACK_FRAME_GET_THIS = 2,
  	CMD_STACK_FRAME_SET_VALUES = 3,
  	CMD_STACK_FRAME_GET_DOMAIN = 4,
  	CMD_STACK_FRAME_SET_THIS = 5,
  } CmdStackFrame;
  
  typedef enum {
  	CMD_ARRAY_REF_GET_LENGTH = 1,
  	CMD_ARRAY_REF_GET_VALUES = 2,
  	CMD_ARRAY_REF_SET_VALUES = 3,
  } CmdArray;
  
  typedef enum {
  	CMD_STRING_REF_GET_VALUE = 1,
  	CMD_STRING_REF_GET_LENGTH = 2,
  	CMD_STRING_REF_GET_CHARS = 3
  } CmdString;
  
  typedef enum {
  	CMD_POINTER_GET_VALUE = 1
  } CmdPointer;
  
  typedef enum {
  	CMD_OBJECT_REF_GET_TYPE = 1,
  	CMD_OBJECT_REF_GET_VALUES = 2,
  	CMD_OBJECT_REF_IS_COLLECTED = 3,
  	CMD_OBJECT_REF_GET_ADDRESS = 4,
  	CMD_OBJECT_REF_GET_DOMAIN = 5,
  	CMD_OBJECT_REF_SET_VALUES = 6,
  	CMD_OBJECT_REF_GET_INFO = 7,
  } CmdObject;
  
  /*
   * Contains additional information for an event
   */
  typedef struct {
  	/* For EVENT_KIND_EXCEPTION */
  	MonoObject *exc;
  	MonoContext catch_ctx;
  	gboolean caught;
  	/* For EVENT_KIND_USER_LOG */
  	int level;
  	char *category, *message;
  	/* For EVENT_KIND_TYPE_LOAD */
  	MonoClass *klass;
  	/* For EVENT_KIND_CRASH  */
  	char *dump;
  	MonoStackHash *hashes;
  } EventInfo;
  
  typedef struct {
  	guint8 *buf, *p, *end;
  } Buffer;
  
  typedef struct ReplyPacket {
  	int id;
  	int error;
  	Buffer *data;
  } ReplyPacket;
  
  #define DEBUG(level,s) do { if (G_UNLIKELY ((level) <= log_level)) { s; fflush (log_file); } } while (0)
  
  #ifdef HOST_ANDROID
  #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { g_print (__VA_ARGS__); } } while (0)
  #else
  #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { fprintf (log_file, __VA_ARGS__); fflush (log_file); } } while (0)
  #endif
  
  #ifdef HOST_WIN32
  #define get_last_sock_error() WSAGetLastError()
  #define MONO_EWOULDBLOCK WSAEWOULDBLOCK
  #define MONO_EINTR WSAEINTR
  #else
  #define get_last_sock_error() errno
  #define MONO_EWOULDBLOCK EWOULDBLOCK
  #define MONO_EINTR EINTR
  #endif
  
  #define CHECK_PROTOCOL_VERSION(major,minor) \
  	(protocol_version_set && (major_version > (major) || (major_version == (major) && minor_version >= (minor))))
  
  /*
   * Globals
   */
  
  static AgentConfig agent_config;
  
  /* 
   * Whenever the agent is fully initialized.
   * When using the onuncaught or onthrow options, only some parts of the agent are
   * initialized on startup, and the full initialization which includes connection
   * establishment and the startup of the agent thread is only done in response to
   * an event.
   */
  static gint32 inited;
  
  #ifndef DISABLE_SOCKET_TRANSPORT
  static int conn_fd;
  static int listen_fd;
  #endif
  
  static int packet_id = 0;
  
  static int objref_id = 0;
  
  static int event_request_id = 0;
  
  static int frame_id = 0;
  
  static GPtrArray *event_requests;
  
  static MonoNativeTlsKey debugger_tls_id;
  
  static gboolean vm_start_event_sent, vm_death_event_sent, disconnected;
  
  /* Maps MonoInternalThread -> DebuggerTlsData */
  /* Protected by the loader lock */
  static MonoGHashTable *thread_to_tls;
  
  /* Maps tid -> MonoInternalThread */
  /* Protected by the loader lock */
  static MonoGHashTable *tid_to_thread;
  
  /* Maps tid -> MonoThread (not MonoInternalThread) */
  /* Protected by the loader lock */
  static MonoGHashTable *tid_to_thread_obj;
  
  static MonoNativeThreadId debugger_thread_id;
  
  static MonoThreadHandle *debugger_thread_handle;
  
  static int log_level;
  
  static int file_check_valid_memory = -1;
  
  static char* filename_check_valid_memory;
  
  static gboolean embedding;
  
  static FILE *log_file;
  
  /* Assemblies whose assembly load event has no been sent yet */
  /* Protected by the dbg lock */
  static GPtrArray *pending_assembly_loads;
  
  /* Whenever the debugger thread has exited */
  static gboolean debugger_thread_exited;
  
  /* Cond variable used to wait for debugger_thread_exited becoming true */
  static MonoCoopCond debugger_thread_exited_cond;
  
  /* Mutex for the cond var above */
  static MonoCoopMutex debugger_thread_exited_mutex;
  
  /* The protocol version of the client */
  static int major_version, minor_version;
  
  /* Whenever the variables above are set by the client */
  static gboolean protocol_version_set;
  
  /* The number of times the runtime is suspended */
  static gint32 suspend_count;
  
  /* Whenever to buffer reply messages and send them together */
  static gboolean buffer_replies;
  
  /* Buffered reply packets */
  static ReplyPacket reply_packets [128];
  static int nreply_packets;
  
  #define dbg_lock mono_de_lock
  #define dbg_unlock mono_de_unlock
  
  static void transport_init (void);
  static void transport_connect (const char *address);
  static gboolean transport_handshake (void);
  static void register_transport (DebuggerTransport *trans);
  
  static gsize WINAPI debugger_thread (void *arg);
  
  static void runtime_initialized (MonoProfiler *prof);
  
  static void runtime_shutdown (MonoProfiler *prof);
  
  static void thread_startup (MonoProfiler *prof, uintptr_t tid);
  
  static void thread_end (MonoProfiler *prof, uintptr_t tid);
  
  static void appdomain_load (MonoProfiler *prof, MonoDomain *domain);
  
  static void appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain);
  
  static void appdomain_unload (MonoProfiler *prof, MonoDomain *domain);
  
  static void emit_appdomain_load (gpointer key, gpointer value, gpointer user_data);
  
  static void emit_thread_start (gpointer key, gpointer value, gpointer user_data);
  
  static void invalidate_each_thread (gpointer key, gpointer value, gpointer user_data);
  
  static void assembly_load (MonoProfiler *prof, MonoAssembly *assembly);
  
  static void assembly_unload (MonoProfiler *prof, MonoAssembly *assembly);
  
  static void gc_finalizing (MonoProfiler *prof);
  
  static void gc_finalized (MonoProfiler *prof);
  
  static void emit_assembly_load (gpointer assembly, gpointer user_data);
  
  static void emit_type_load (gpointer key, gpointer type, gpointer user_data);
  
  static void jit_done (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo);
  
  static void jit_failed (MonoProfiler *prof, MonoMethod *method);
  
  static void jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo);
  
  static void suspend_current (void);
  
  static void clear_event_requests_for_assembly (MonoAssembly *assembly);
  
  static void clear_types_for_assembly (MonoAssembly *assembly);
  
  static void process_profiler_event (EventKind event, gpointer arg);
  
  /* Submodule init/cleanup */
  static void event_requests_cleanup (void);
  
  static void objrefs_init (void);
  static void objrefs_cleanup (void);
  
  static void ids_init (void);
  static void ids_cleanup (void);
  
  static void suspend_init (void);
  
  static void start_debugger_thread (MonoError *error);
  static void stop_debugger_thread (void);
  
  static void finish_agent_init (gboolean on_startup);
  
  static void process_profiler_event (EventKind event, gpointer arg);
  
  static void invalidate_frames (DebuggerTlsData *tls);
  
  /* Callbacks used by debugger-engine */
  static MonoContext* tls_get_restore_state (void *the_tls);
  static gboolean try_process_suspend (void *tls, MonoContext *ctx, gboolean from_breakpoint);
  static gboolean begin_breakpoint_processing (void *tls, MonoContext *ctx, MonoJitInfo *ji, gboolean from_signal);
  static void begin_single_step_processing (MonoContext *ctx, gboolean from_signal);
  static void ss_discard_frame_context (void *the_tls);
  static void ss_calculate_framecount (void *tls, MonoContext *ctx, gboolean force_use_ctx, DbgEngineStackFrame ***frames, int *nframes);
  static gboolean ensure_jit (DbgEngineStackFrame* the_frame);
  static int ensure_runtime_is_suspended (void);
  static int get_this_async_id (DbgEngineStackFrame *frame);
  static gboolean set_set_notification_for_wait_completion_flag (DbgEngineStackFrame *frame);
  static MonoMethod* get_notify_debugger_of_wait_completion_method (void);
  static void* create_breakpoint_events (GPtrArray *ss_reqs, GPtrArray *bp_reqs, MonoJitInfo *ji, EventKind kind);
  static void process_breakpoint_events (void *_evts, MonoMethod *method, MonoContext *ctx, int il_offset);
  static int ss_create_init_args (SingleStepReq *ss_req, SingleStepArgs *args);
  static void ss_args_destroy (SingleStepArgs *ss_args);
  static int handle_multiple_ss_requests (void);
  
  static GENERATE_TRY_GET_CLASS_WITH_CACHE (fixed_buffer, "System.Runtime.CompilerServices", "FixedBufferAttribute")
  
  #ifndef DISABLE_SOCKET_TRANSPORT
  static void
  register_socket_transport (void);
  #endif
  
  static gboolean
  is_debugger_thread (void)
  {
  	MonoInternalThread *internal;
  
  	internal = mono_thread_internal_current ();
  	if (!internal)
  		return FALSE;
  
  	return internal->debugger_thread;
  }
  
  static int
  parse_address (char *address, char **host, int *port)
  {
  	char *pos = strchr (address, ':');
  
  	if (pos == NULL || pos == address)
  		return 1;
  
  	size_t len = pos - address;
  	*host = (char *)g_malloc (len + 1);
  	memcpy (*host, address, len);
  	(*host) [len] = '\0';
  
  	*port = atoi (pos + 1);
  
  	return 0;
  }
  
  static void
  print_usage (void)
  {
  	g_printerr ("Usage: mono --debugger-agent=[<option>=<value>,...] ...\n");
  	g_printerr ("Available options:\n");
  	g_printerr ("  transport=<transport>\t\tTransport to use for connecting to the debugger (mandatory, possible values: 'dt_socket')\n");
  	g_printerr ("  address=<hostname>:<port>\tAddress to connect to (mandatory)\n");
  	g_printerr ("  loglevel=<n>\t\t\tLog level (defaults to 0)\n");
  	g_printerr ("  logfile=<file>\t\tFile to log to (defaults to stdout)\n");
  	g_printerr ("  suspend=y/n\t\t\tWhether to suspend after startup.\n");
  	g_printerr ("  timeout=<n>\t\t\tTimeout for connecting in milliseconds.\n");
  	g_printerr ("  server=y/n\t\t\tWhether to listen for a client connection.\n");
  	g_printerr ("  keepalive=<n>\t\t\tSend keepalive events every n milliseconds.\n");
  	g_printerr ("  setpgid=y/n\t\t\tWhether to call setpid(0, 0) after startup.\n");
  	g_printerr ("  help\t\t\t\tPrint this help.\n");
  }
  
  static gboolean
  parse_flag (const char *option, char *flag)
  {
  	if (!strcmp (flag, "y"))
  		return TRUE;
  	else if (!strcmp (flag, "n"))
  		return FALSE;
  	else {
  		g_printerr ("debugger-agent: The valid values for the '%s' option are 'y' and 'n'.\n", option);
  		exit (1);
  		return FALSE;
  	}
  }
  
  static void
  debugger_agent_parse_options (char *options)
  {
  	char **args, **ptr;
  	char *host;
  	int port;
  	char *extra;
  
  #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
  	g_printerr ("--debugger-agent is not supported on this platform.\n");
  	exit (1);
  #endif
  
  	extra = g_getenv ("MONO_SDB_ENV_OPTIONS");
  	if (extra) {
  		options = g_strdup_printf ("%s,%s", options, extra);
  		g_free (extra);
  	}
  
  	agent_config.enabled = TRUE;
  	agent_config.suspend = TRUE;
  	agent_config.server = FALSE;
  	agent_config.defer = FALSE;
  	agent_config.address = NULL;
  
  	//agent_config.log_level = 10;
  
  	args = g_strsplit (options, ",", -1);
  	for (ptr = args; ptr && *ptr; ptr ++) {
  		char *arg = *ptr;
  
  		if (strncmp (arg, "transport=", 10) == 0) {
  			agent_config.transport = g_strdup (arg + 10);
  		} else if (strncmp (arg, "address=", 8) == 0) {
  			agent_config.address = g_strdup (arg + 8);
  		} else if (strncmp (arg, "loglevel=", 9) == 0) {
  			agent_config.log_level = atoi (arg + 9);
  		} else if (strncmp (arg, "logfile=", 8) == 0) {
  			agent_config.log_file = g_strdup (arg + 8);
  		} else if (strncmp (arg, "suspend=", 8) == 0) {
  			agent_config.suspend = parse_flag ("suspend", arg + 8);
  		} else if (strncmp (arg, "server=", 7) == 0) {
  			agent_config.server = parse_flag ("server", arg + 7);
  		} else if (strncmp (arg, "onuncaught=", 11) == 0) {
  			agent_config.onuncaught = parse_flag ("onuncaught", arg + 11);
  		} else if (strncmp (arg, "onthrow=", 8) == 0) {
  			/* We support multiple onthrow= options */
  			agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (arg + 8));
  		} else if (strncmp (arg, "onthrow", 7) == 0) {
  			agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (""));
  		} else if (strncmp (arg, "help", 4) == 0) {
  			print_usage ();
  			exit (0);
  		} else if (strncmp (arg, "timeout=", 8) == 0) {
  			agent_config.timeout = atoi (arg + 8);
  		} else if (strncmp (arg, "launch=", 7) == 0) {
  			agent_config.launch = g_strdup (arg + 7);
  		} else if (strncmp (arg, "embedding=", 10) == 0) {
  			agent_config.embedding = atoi (arg + 10) == 1;
  		} else if (strncmp (arg, "keepalive=", 10) == 0) {
  			agent_config.keepalive = atoi (arg + 10);
  		} else if (strncmp (arg, "setpgid=", 8) == 0) {
  			agent_config.setpgid = parse_flag ("setpgid", arg + 8);
  		} else {
  			print_usage ();
  			exit (1);
  		}
  	}
  
  	if (agent_config.server && !agent_config.suspend) {
  		/* Waiting for deferred attachment */
  		agent_config.defer = TRUE;
  		if (agent_config.address == NULL) {
  			agent_config.address = g_strdup_printf ("0.0.0.0:%u", 56000 + (mono_process_current_pid () % 1000));
  		}
  	}
  
  	//agent_config.log_level = 0;
  
  	if (agent_config.transport == NULL) {
  		g_printerr ("debugger-agent: The 'transport' option is mandatory.\n");
  		exit (1);
  	}
  
  	if (agent_config.address == NULL && !agent_config.server) {
  		g_printerr ("debugger-agent: The 'address' option is mandatory.\n");
  		exit (1);
  	}
  
  	// FIXME:
  	if (!strcmp (agent_config.transport, "dt_socket")) {
  		if (agent_config.address && parse_address (agent_config.address, &host, &port)) {
  			g_printerr ("debugger-agent: The format of the 'address' options is '<host>:<port>'\n");
  			exit (1);
  		}
  	}
  }
  
  void
  mono_debugger_set_thread_state (DebuggerTlsData *tls, MonoDebuggerThreadState expected, MonoDebuggerThreadState set)
  {
  	g_assertf (tls, "Cannot get state of null thread", NULL);
  
  	g_assert (tls->thread_state == expected);
  
  	tls->thread_state = set;
  }
  
  MonoDebuggerThreadState
  mono_debugger_get_thread_state (DebuggerTlsData *tls)
  {
  	g_assertf (tls, "Cannot get state of null thread", NULL);
  
  	return tls->thread_state;
  }
  
  gsize
  mono_debugger_tls_thread_id (DebuggerTlsData *tls)
  {
  	if (!tls)
  		return 0;
  
  	return tls->thread_id;
  }
  
  // Only call this function with the loader lock held
  MonoGHashTable *
  mono_debugger_get_thread_states (void)
  {
  	return thread_to_tls;
  }
  
  gboolean
  mono_debugger_is_disconnected (void)
  {
  	return disconnected;
  }
  
  static void
  debugger_agent_init (void)
  {
  	if (!agent_config.enabled)
  		return;
  
  	DebuggerEngineCallbacks cbs;
  	memset (&cbs, 0, sizeof (cbs));
  	cbs.tls_get_restore_state = tls_get_restore_state;
  	cbs.try_process_suspend = try_process_suspend;
  	cbs.begin_breakpoint_processing = begin_breakpoint_processing;
  	cbs.begin_single_step_processing = begin_single_step_processing;
  	cbs.ss_discard_frame_context = ss_discard_frame_context;
  	cbs.ss_calculate_framecount = ss_calculate_framecount;
  	cbs.ensure_jit = ensure_jit;
  	cbs.ensure_runtime_is_suspended = ensure_runtime_is_suspended;
  	cbs.get_this_async_id = get_this_async_id;
  	cbs.set_set_notification_for_wait_completion_flag = set_set_notification_for_wait_completion_flag;
  	cbs.get_notify_debugger_of_wait_completion_method = get_notify_debugger_of_wait_completion_method;
  	cbs.create_breakpoint_events = create_breakpoint_events;
  	cbs.process_breakpoint_events = process_breakpoint_events;
  	cbs.ss_create_init_args = ss_create_init_args;
  	cbs.ss_args_destroy = ss_args_destroy;
  	cbs.handle_multiple_ss_requests = handle_multiple_ss_requests;
  
  	mono_de_init (&cbs);
  
  	transport_init ();
  
  	/* Need to know whenever a thread has acquired the loader mutex */
  	mono_loader_lock_track_ownership (TRUE);
  
  	event_requests = g_ptr_array_new ();
  
  	mono_coop_mutex_init (&debugger_thread_exited_mutex);
  	mono_coop_cond_init (&debugger_thread_exited_cond);
  
  	MonoProfilerHandle prof = mono_profiler_create (NULL);
  	mono_profiler_set_runtime_shutdown_end_callback (prof, runtime_shutdown);
  	mono_profiler_set_runtime_initialized_callback (prof, runtime_initialized);
  	mono_profiler_set_domain_loaded_callback (prof, appdomain_load);
  	mono_profiler_set_domain_unloading_callback (prof, appdomain_start_unload);
  	mono_profiler_set_domain_unloaded_callback (prof, appdomain_unload);
  	mono_profiler_set_thread_started_callback (prof, thread_startup);
  	mono_profiler_set_thread_stopped_callback (prof, thread_end);
  	mono_profiler_set_assembly_loaded_callback (prof, assembly_load);
  	mono_profiler_set_assembly_unloading_callback (prof, assembly_unload);
  	mono_profiler_set_jit_done_callback (prof, jit_done);
  	mono_profiler_set_jit_failed_callback (prof, jit_failed);
  	mono_profiler_set_gc_finalizing_callback (prof, gc_finalizing);
  	mono_profiler_set_gc_finalized_callback (prof, gc_finalized);
  	
  	mono_native_tls_alloc (&debugger_tls_id, NULL);
  
  	/* Needed by the hash_table_new_type () call below */
  	mono_gc_base_init ();
  
  	thread_to_tls = mono_g_hash_table_new_type_internal ((GHashFunc)mono_object_hash_internal, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, NULL, "Debugger TLS Table");
  
  	tid_to_thread = mono_g_hash_table_new_type_internal (NULL, NULL, MONO_HASH_VALUE_GC, MONO_ROOT_SOURCE_DEBUGGER, NULL, "Debugger Thread Table");
  
  	tid_to_thread_obj = mono_g_hash_table_new_type_internal (NULL, NULL, MONO_HASH_VALUE_GC, MONO_ROOT_SOURCE_DEBUGGER, NULL, "Debugger Thread Object Table");
  
  	pending_assembly_loads = g_ptr_array_new ();
  
  	log_level = agent_config.log_level;
  
  	embedding = agent_config.embedding;
  	disconnected = TRUE;
  
  	if (agent_config.log_file) {
  		log_file = fopen (agent_config.log_file, "w+");
  		if (!log_file) {
  			g_printerr ("Unable to create log file '%s': %s.\n", agent_config.log_file, strerror (errno));
  			exit (1);
  		}
  	} else {
  		log_file = stdout;
  	}
  	mono_de_set_log_level (log_level, log_file);
  
  	ids_init ();
  	objrefs_init ();
  	suspend_init ();
  
  	mini_get_debug_options ()->gen_sdb_seq_points = TRUE;
  	/* 
  	 * This is needed because currently we don't handle liveness info.
  	 */
  	mini_get_debug_options ()->mdb_optimizations = TRUE;
  
  #ifndef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
  	/* This is needed because we can't set local variables in registers yet */
  	mono_disable_optimizations (MONO_OPT_LINEARS);
  #endif
  
  	/*
  	 * The stack walk done from thread_interrupt () needs to be signal safe, but it
  	 * isn't, since it can call into mono_aot_find_jit_info () which is not signal
  	 * safe (#3411). So load AOT info eagerly when the debugger is running as a
  	 * workaround.
  	 */
  	mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE;
  
  #ifdef HAVE_SETPGID
  	if (agent_config.setpgid)
  		setpgid (0, 0);
  #endif
  
  	if (!agent_config.onuncaught && !agent_config.onthrow)
  		finish_agent_init (TRUE);
  }
  
  /*
   * finish_agent_init:
   *
   *   Finish the initialization of the agent. This involves connecting the transport
   * and starting the agent thread. This is either done at startup, or
   * in response to some event like an unhandled exception.
   */
  static void
  finish_agent_init (gboolean on_startup)
  {
  	if (mono_atomic_cas_i32 (&inited, 1, 0) == 1)
  		return;
  
  	if (agent_config.launch) {
  
  		// FIXME: Generated address
  		// FIXME: Races with transport_connect ()
  
  #ifdef G_OS_WIN32
  		// Nothing. FIXME? g_spawn_async_with_pipes is easy enough to provide for Windows if needed.
  #elif !HAVE_G_SPAWN
  		g_printerr ("g_spawn_async_with_pipes not supported on this platform\n");
  		exit (1);
  #else
  		char *argv [ ] = {
  			agent_config.launch,
  			agent_config.transport,
  			agent_config.address,
  			NULL
  		};
  		int res = g_spawn_async_with_pipes (NULL, argv, NULL, (GSpawnFlags)0, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
  		if (!res) {
  			g_printerr ("Failed to execute '%s'.\n", agent_config.launch);
  			exit (1);
  		}
  #endif
  	}
  
  	transport_connect (agent_config.address);
  
  	if (!on_startup) {
  		/* Do some which is usually done after sending the VMStart () event */
  		vm_start_event_sent = TRUE;
  		ERROR_DECL (error);
  		start_debugger_thread (error);
  		mono_error_assert_ok (error);
  	}
  }
  
  static void
  mono_debugger_agent_cleanup (void)
  {
  	if (!inited)
  		return;
  
  	stop_debugger_thread ();
  
  	event_requests_cleanup ();
  	objrefs_cleanup ();
  	ids_cleanup ();
  
  	mono_de_cleanup ();
  
  	if (file_check_valid_memory != -1) {
  		remove (filename_check_valid_memory);
  		g_free (filename_check_valid_memory);
  		close (file_check_valid_memory);
  	}
  }
  
  /*
   * SOCKET TRANSPORT
   */
  
  #ifndef DISABLE_SOCKET_TRANSPORT
  
  /*
   * recv_length:
   *
   * recv() + handle incomplete reads and EINTR
   */
  static int
  socket_transport_recv (void *buf, int len)
  {
  	int res;
  	int total = 0;
  	int fd = conn_fd;
  	int flags = 0;
  	static gint64 last_keepalive;
  	gint64 msecs;
  
  	MONO_ENTER_GC_SAFE;
  
  	do {
  	again:
  		res = recv (fd, (char *) buf + total, len - total, flags);
  		if (res > 0)
  			total += res;
  		if (agent_config.keepalive) {
  			gboolean need_keepalive = FALSE;
  			if (res == -1 && get_last_sock_error () == MONO_EWOULDBLOCK) {
  				need_keepalive = TRUE;
  			} else if (res == -1) {
  				/* This could happen if recv () is interrupted repeatedly */
  				msecs = mono_msec_ticks ();
  				if (msecs - last_keepalive >= agent_config.keepalive) {
  					need_keepalive = TRUE;
  					last_keepalive = msecs;
  				}
  			}
  			if (need_keepalive) {
  				process_profiler_event (EVENT_KIND_KEEPALIVE, NULL);
  				goto again;
  			}
  		}
  	} while ((res > 0 && total < len) || (res == -1 && get_last_sock_error () == MONO_EINTR));
  
  	MONO_EXIT_GC_SAFE;
  
  	return total;
  }
   
  static void
  set_keepalive (void)
  {
  	struct timeval tv;
  	int result;
  
  	if (!agent_config.keepalive || !conn_fd)
  		return;
  
  	tv.tv_sec = agent_config.keepalive / 1000;
  	tv.tv_usec = (agent_config.keepalive % 1000) * 1000;
  
  	result = setsockopt (conn_fd, SOL_SOCKET, SO_RCVTIMEO, (char *) &tv, sizeof(struct timeval));
  	g_assert (result >= 0);
  }
  
  static int
  socket_transport_accept (int socket_fd)
  {
  	MONO_ENTER_GC_SAFE;
  	conn_fd = accept (socket_fd, NULL, NULL);
  	MONO_EXIT_GC_SAFE;
  
  	if (conn_fd == -1) {
  		g_printerr ("debugger-agent: Unable to listen on %d\n", socket_fd);
  	} else {
  		DEBUG_PRINTF (1, "Accepted connection from client, connection fd=%d.\n", conn_fd);
  	}
  	
  	return conn_fd;
  }
  
  static gboolean
  socket_transport_send (void *data, int len)
  {
  	int res;
  
  	MONO_ENTER_GC_SAFE;
  
  	do {
  		res = send (conn_fd, (const char*)data, len, 0);
  	} while (res == -1 && get_last_sock_error () == MONO_EINTR);
  
  	MONO_EXIT_GC_SAFE;
  
  	if (res != len)
  		return FALSE;
  	else
  		return TRUE;
  }
  
  /*
   * socket_transport_connect:
   *
   *   Connect/Listen on HOST:PORT. If HOST is NULL, generate an address and listen on it.
   */
  static void
  socket_transport_connect (const char *address)
  {
  	MonoAddressInfo *result;
  	MonoAddressEntry *rp;
  	int sfd = -1, s, res;
  	char *host;
  	int port;
  
  	if (agent_config.address) {
  		res = parse_address (agent_config.address, &host, &port);
  		g_assert (res == 0);
  	} else {
  		host = NULL;
  		port = 0;
  	}
  
  	conn_fd = -1;
  	listen_fd = -1;
  
  	if (host) {
  		int hints[] = {
  			MONO_HINT_IPV4 | MONO_HINT_NUMERIC_HOST,
  			MONO_HINT_IPV6 | MONO_HINT_NUMERIC_HOST,
  			MONO_HINT_UNSPECIFIED
  		};
  
  		mono_network_init ();
  
  		for (int i = 0; i < sizeof(hints) / sizeof(int); i++) {
  			/* Obtain address(es) matching host/port */
  			s = mono_get_address_info (host, port, hints[i], &result);
  			if (s == 0)
  				break;
  		}
  		if (s != 0) {
  			g_printerr ("debugger-agent: Unable to resolve %s:%d: %d\n", host, port, s); // FIXME add portable error conversion functions
  			exit (1);
  		}
  	}
  
  	if (agent_config.server) {
  		/* Wait for a connection */
  		if (!host) {
  			struct sockaddr_in addr;
  			socklen_t addrlen;
  
  			/* No address, generate one */
  			sfd = socket (AF_INET, SOCK_STREAM, 0);
  			if (sfd == -1) {
  				g_printerr ("debugger-agent: Unable to create a socket: %s\n", strerror (get_last_sock_error ()));
  				exit (1);
  			}
  
  			/* This will bind the socket to a random port */
  			res = listen (sfd, 16);
  			if (res == -1) {
  				g_printerr ("debugger-agent: Unable to setup listening socket: %s\n", strerror (get_last_sock_error ()));
  				exit (1);
  			}
  			listen_fd = sfd;
  
  			addrlen = sizeof (addr);
  			memset (&addr, 0, sizeof (addr));
  			res = getsockname (sfd, (struct sockaddr*)&addr, &addrlen);
  			g_assert (res == 0);
  
  			host = (char*)"127.0.0.1";
  			port = ntohs (addr.sin_port);
  
  			/* Emit the address to stdout */
  			/* FIXME: Should print another interface, not localhost */
  			printf ("%s:%d\n", host, port);
  		} else {
  			/* Listen on the provided address */
  			for (rp = result->entries; rp != NULL; rp = rp->next) {
  				MonoSocketAddress sockaddr;
  				socklen_t sock_len;
  				int n = 1;
  
  				mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
  
  				sfd = socket (rp->family, rp->socktype,
  							  rp->protocol);
  				if (sfd == -1)
  					continue;
  
  				if (setsockopt (sfd, SOL_SOCKET, SO_REUSEADDR, (const char*)&n, sizeof(n)) == -1)
  					continue;
  
  				res = bind (sfd, &sockaddr.addr, sock_len);
  				if (res == -1)
  					continue;
  
  				res = listen (sfd, 16);
  				if (res == -1)
  					continue;
  				listen_fd = sfd;
  				break;
  			}
  
  			mono_free_address_info (result);
  		}
  
  		if (agent_config.defer)
  			return;
  
  		DEBUG_PRINTF (1, "Listening on %s:%d (timeout=%d ms)...\n", host, port, agent_config.timeout);
  
  		if (agent_config.timeout) {
  			fd_set readfds;
  			struct timeval tv;
  
  			tv.tv_sec = 0;
  			tv.tv_usec = agent_config.timeout * 1000;
  			FD_ZERO (&readfds);
  			FD_SET (sfd, &readfds);
  
  			MONO_ENTER_GC_SAFE;
  			res = select (sfd + 1, &readfds, NULL, NULL, &tv);
  			MONO_EXIT_GC_SAFE;
  
  			if (res == 0) {
  				g_printerr ("debugger-agent: Timed out waiting to connect.\n");
  				exit (1);
  			}
  		}
  
  		conn_fd = socket_transport_accept (sfd);
  		if (conn_fd == -1)
  			exit (1);
  
  		DEBUG_PRINTF (1, "Accepted connection from client, socket fd=%d.\n", conn_fd);
  	} else {
  		/* Connect to the specified address */
  		/* FIXME: Respect the timeout */
  		for (rp = result->entries; rp != NULL; rp = rp->next) {
  			MonoSocketAddress sockaddr;
  			socklen_t sock_len;
  
  			mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
  
  			sfd = socket (rp->family, rp->socktype,
  						  rp->protocol);
  			if (sfd == -1)
  				continue;
  
  			MONO_ENTER_GC_SAFE;
  			res = connect (sfd, &sockaddr.addr, sock_len);
  			MONO_EXIT_GC_SAFE;
  
  			if (res != -1)
  				break;       /* Success */
  			
  			MONO_ENTER_GC_SAFE;
  #ifdef HOST_WIN32
  			closesocket (sfd);
  #else
  			close (sfd);
  #endif
  			MONO_EXIT_GC_SAFE;
  		}
  
  		if (rp == 0) {
  			g_printerr ("debugger-agent: Unable to connect to %s:%d\n", host, port);
  			exit (1);
  		}
  
  		conn_fd = sfd;
  
  		mono_free_address_info (result);
  	}
  	
  	if (!transport_handshake ())
  		exit (1);
  }
  
  static void
  socket_transport_close1 (void)
  {
  	/* This will interrupt the agent thread */
  	/* Close the read part only so it can still send back replies */
  	/* Also shut down the connection listener so that we can exit normally */
  #ifdef HOST_WIN32
  	/* SD_RECEIVE doesn't break the recv in the debugger thread */
  	shutdown (conn_fd, SD_BOTH);
  	shutdown (listen_fd, SD_BOTH);
  	closesocket (listen_fd);
  #else
  	shutdown (conn_fd, SHUT_RD);
  	shutdown (listen_fd, SHUT_RDWR);
  	MONO_ENTER_GC_SAFE;
  	close (listen_fd);
  	MONO_EXIT_GC_SAFE;
  #endif
  }
  
  static void
  socket_transport_close2 (void)
  {
  #ifdef HOST_WIN32
  	shutdown (conn_fd, SD_BOTH);
  #else
  	shutdown (conn_fd, SHUT_RDWR);
  #endif
  }
  
  static void
  register_socket_transport (void)
  {
  	DebuggerTransport trans;
  
  	trans.name = "dt_socket";
  	trans.connect = socket_transport_connect;
  	trans.close1 = socket_transport_close1;
  	trans.close2 = socket_transport_close2;
  	trans.send = socket_transport_send;
  	trans.recv = socket_transport_recv;
  
  	register_transport (&trans);
  }
  
  /*
   * socket_fd_transport_connect:
   *
   */
  static void
  socket_fd_transport_connect (const char *address)
  {
  	int res;
  
  	res = sscanf (address, "%d", &conn_fd);
  	if (res != 1) {
  		g_printerr ("debugger-agent: socket-fd transport address is invalid: '%s'\n", address);
  		exit (1);
  	}
  
  	if (!transport_handshake ())
  		exit (1);
  }
  
  static void
  register_socket_fd_transport (void)
  {
  	DebuggerTransport trans;
  
  	/* This is the same as the 'dt_socket' transport, but receives an already connected socket fd */
  	trans.name = "socket-fd";
  	trans.connect = socket_fd_transport_connect;
  	trans.close1 = socket_transport_close1;
  	trans.close2 = socket_transport_close2;
  	trans.send = socket_transport_send;
  	trans.recv = socket_transport_recv;
  
  	register_transport (&trans);
  }
  
  #endif /* DISABLE_SOCKET_TRANSPORT */
  
  /*
   * TRANSPORT CODE
   */
  
  #define MAX_TRANSPORTS 16
  
  static DebuggerTransport *transport;
  
  static DebuggerTransport transports [MAX_TRANSPORTS];
  static int ntransports;
  
  MONO_API void
  mono_debugger_agent_register_transport (DebuggerTransport *trans);
  
  void
  mono_debugger_agent_register_transport (DebuggerTransport *trans)
  {
  	register_transport (trans);
  }
  
  static void
  register_transport (DebuggerTransport *trans)
  {
  	g_assert (ntransports < MAX_TRANSPORTS);
  
  	memcpy (&transports [ntransports], trans, sizeof (DebuggerTransport));
  	ntransports ++;
  }
  
  static void
  transport_init (void)
  {
  	int i;
  
  #ifndef DISABLE_SOCKET_TRANSPORT
  	register_socket_transport ();
  	register_socket_fd_transport ();
  #endif
  
  	for (i = 0; i < ntransports; ++i) {
  		if (!strcmp (agent_config.transport, transports [i].name))
  			break;
  	}
  	if (i == ntransports) {
  		g_printerr ("debugger-agent: The supported values for the 'transport' option are: ");
  		for (i = 0; i < ntransports; ++i)
  			g_printerr ("%s'%s'", i > 0 ? ", " : "", transports [i].name);
  		g_printerr ("\n");
  		exit (1);
  	}
  	transport = &transports [i];
  }
  
  void
  transport_connect (const char *address)
  {
  	transport->connect (address);
  }
  
  static void
  transport_close1 (void)
  {
  	transport->close1 ();
  }
  
  static void
  transport_close2 (void)
  {
  	transport->close2 ();
  }
  
  static int
  transport_send (void *buf, int len)
  {
  	return transport->send (buf, len);
  }
  
  static int
  transport_recv (void *buf, int len)
  {
  	return transport->recv (buf, len);
  }
  
  gboolean
  mono_debugger_agent_transport_handshake (void)
  {
  	return transport_handshake ();
  }
  
  static gboolean
  transport_handshake (void)
  {
  	char handshake_msg [128];
  	guint8 buf [128];
  	int res;
  	
  	disconnected = TRUE;
  	
  	/* Write handshake message */
  	sprintf (handshake_msg, "DWP-Handshake");
  
  	do {
  		res = transport_send (handshake_msg, strlen (handshake_msg));
  	} while (res == -1 && get_last_sock_error () == MONO_EINTR);
  
  	g_assert (res != -1);
  
  	/* Read answer */
  	res = transport_recv (buf, strlen (handshake_msg));
  	if ((res != strlen (handshake_msg)) || (memcmp (buf, handshake_msg, strlen (handshake_msg)) != 0)) {
  		g_printerr ("debugger-agent: DWP handshake failed.\n");
  		return FALSE;
  	}
  
  	/*
  	 * To support older clients, the client sends its protocol version after connecting
  	 * using a command. Until that is received, default to our protocol version.
  	 */
  	major_version = MAJOR_VERSION;
  	minor_version = MINOR_VERSION;
  	protocol_version_set = FALSE;
  
  #ifndef DISABLE_SOCKET_TRANSPORT
  	// FIXME: Move this somewhere else
  	/* 
  	 * Set TCP_NODELAY on the socket so the client receives events/command
  	 * results immediately.
  	 */
  	if (conn_fd) {
  		int flag = 1;
  		int result = setsockopt (conn_fd,
                                   IPPROTO_TCP,
                                   TCP_NODELAY,
                                   (char *) &flag,
                                   sizeof(int));
  		g_assert (result >= 0);
  	}
  
  	set_keepalive ();
  #endif
  	
  	disconnected = FALSE;
  	return TRUE;
  }
  
  static void
  stop_debugger_thread (void)
  {
  	if (!inited)
  		return;
  
  	transport_close1 ();
  
  	/* 
  	 * Wait for the thread to exit.
  	 *
  	 * If we continue with the shutdown without waiting for it, then the client might
  	 * not receive an answer to its last command like a resume.
  	 */
  	if (!is_debugger_thread ()) {
  		do {
  			mono_coop_mutex_lock (&debugger_thread_exited_mutex);
  			if (!debugger_thread_exited)
  				mono_coop_cond_wait (&debugger_thread_exited_cond, &debugger_thread_exited_mutex);
  			mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
  		} while (!debugger_thread_exited);
  
  		if (debugger_thread_handle)
  			mono_thread_info_wait_one_handle (debugger_thread_handle, MONO_INFINITE_WAIT, TRUE);
  	}
  
  	transport_close2 ();
  }
  
  static void
  start_debugger_thread (MonoError *error)
  {
  	MonoInternalThread *thread;
  
  	thread = mono_thread_create_internal (mono_get_root_domain (), (gpointer)debugger_thread, NULL, MONO_THREAD_CREATE_FLAGS_DEBUGGER, error);
  	return_if_nok (error);
  
  	/* Is it possible for the thread to be dead alreay ? */
  	debugger_thread_handle = mono_threads_open_thread_handle (thread->handle);
  	g_assert (debugger_thread_handle);
  	
  }
  
  /*
   * Functions to decode protocol data
   */
  
  static int
  decode_byte (guint8 *buf, guint8 **endbuf, guint8 *limit)
  {
  	*endbuf = buf + 1;
  	g_assert (*endbuf <= limit);
  	return buf [0];
  }
  
  static int
  decode_int (guint8 *buf, guint8 **endbuf, guint8 *limit)
  {
  	*endbuf = buf + 4;
  	g_assert (*endbuf <= limit);
  
  	return (((int)buf [0]) << 24) | (((int)buf [1]) << 16) | (((int)buf [2]) << 8) | (((int)buf [3]) << 0);
  }
  
  static gint64
  decode_long (guint8 *buf, guint8 **endbuf, guint8 *limit)
  {
  	guint32 high = decode_int (buf, &buf, limit);
  	guint32 low = decode_int (buf, &buf, limit);
  
  	*endbuf = buf;
  
  	return ((((guint64)high) << 32) | ((guint64)low));
  }
  
  static int
  decode_id (guint8 *buf, guint8 **endbuf, guint8 *limit)
  {
  	return decode_int (buf, endbuf, limit);
  }
  
  static char*
  decode_string (guint8 *buf, guint8 **endbuf, guint8 *limit)
  {
  	int len = decode_int (buf, &buf, limit);
  	char *s;
  
  	if (len < 0) {
  		*endbuf = buf;
  		return NULL;
  	}
  
  	s = (char *)g_malloc (len + 1);
  	g_assert (s);
  
  	memcpy (s, buf, len);
  	s [len] = '\0';
  	buf += len;
  	*endbuf = buf;
  
  	return s;
  }
  
  /*
   * Functions to encode protocol data
   */
  
  static void
  buffer_init (Buffer *buf, int size)
  {
  	buf->buf = (guint8 *)g_malloc (size);
  	buf->p = buf->buf;
  	buf->end = buf->buf + size;
  }
  
  static int
  buffer_len (Buffer *buf)
  {
  	return buf->p - buf->buf;
  }
  
  static void
  buffer_make_room (Buffer *buf, int size)
  {
  	if (buf->end - buf->p < size) {
  		int new_size = buf->end - buf->buf + size + 32;
  		guint8 *p = (guint8 *)g_realloc (buf->buf, new_size);
  		size = buf->p - buf->buf;
  		buf->buf = p;
  		buf->p = p + size;
  		buf->end = buf->buf + new_size;
  	}
  }
  
  static void
  buffer_add_byte (Buffer *buf, guint8 val)
  {
  	buffer_make_room (buf, 1);
  	buf->p [0] = val;
  	buf->p++;
  }
  
  static void
  buffer_add_short (Buffer *buf, guint32 val)
  {
  	buffer_make_room (buf, 2);
  	buf->p [0] = (val >> 8) & 0xff;
  	buf->p [1] = (val >> 0) & 0xff;
  	buf->p += 2;
  }
  
  static void
  buffer_add_int (Buffer *buf, guint32 val)
  {
  	buffer_make_room (buf, 4);
  	buf->p [0] = (val >> 24) & 0xff;
  	buf->p [1] = (val >> 16) & 0xff;
  	buf->p [2] = (val >> 8) & 0xff;
  	buf->p [3] = (val >> 0) & 0xff;
  	buf->p += 4;
  }
  
  static void
  buffer_add_long (Buffer *buf, guint64 l)
  {
  	buffer_add_int (buf, (l >> 32) & 0xffffffff);
  	buffer_add_int (buf, (l >> 0) & 0xffffffff);
  }
  
  static void
  buffer_add_id (Buffer *buf, int id)
  {
  	buffer_add_int (buf, (guint64)id);
  }
  
  static void
  buffer_add_data (Buffer *buf, guint8 *data, int len)
  {
  	buffer_make_room (buf, len);
  	memcpy (buf->p, data, len);
  	buf->p += len;
  }
  
  static void
  buffer_add_utf16 (Buffer *buf, guint8 *data, int len)
  {
  #if G_BYTE_ORDER == G_LITTLE_ENDIAN
  	buffer_make_room (buf, len);
  	memcpy (buf->p, data, len);
  #else
  	for (int i=0; i<len; i +=2) {
  		buf->p[i] = data[i+1];
  		buf->p[i+1] = data[i];
  	}
  #endif
  	buf->p += len;
  }
  
  static void
  buffer_add_string (Buffer *buf, const char *str)
  {
  	int len;
  
  	if (str == NULL) {
  		buffer_add_int (buf, 0);
  	} else {
  		len = strlen (str);
  		buffer_add_int (buf, len);
  		buffer_add_data (buf, (guint8*)str, len);
  	}
  }
  
  static void
  buffer_add_byte_array (Buffer *buf, guint8 *bytes, guint32 arr_len)
  {
      buffer_add_int (buf, arr_len);
      buffer_add_data (buf, bytes, arr_len);
  }
  
  static void
  buffer_add_buffer (Buffer *buf, Buffer *data)
  {
  	buffer_add_data (buf, data->buf, buffer_len (data));
  }
  
  static void
  buffer_free (Buffer *buf)
  {
  	g_free (buf->buf);
  }
  
  static gboolean
  send_packet (int command_set, int command, Buffer *data)
  {
  	Buffer buf;
  	int len, id;
  	gboolean res;
  
  	id = mono_atomic_inc_i32 (&packet_id);
  
  	len = data->p - data->buf + 11;
  	buffer_init (&buf, len);
  	buffer_add_int (&buf, len);
  	buffer_add_int (&buf, id);
  	buffer_add_byte (&buf, 0); /* flags */
  	buffer_add_byte (&buf, command_set);
  	buffer_add_byte (&buf, command);
  	memcpy (buf.buf + 11, data->buf, data->p - data->buf);
  
  	res = transport_send (buf.buf, len);
  
  	buffer_free (&buf);
  
  	return res;
  }
  
  static gboolean
  send_reply_packets (int npackets, ReplyPacket *packets)
  {
  	Buffer buf;
  	int i, len;
  	gboolean res;
  
  	len = 0;
  	for (i = 0; i < npackets; ++i)
  		len += buffer_len (packets [i].data) + 11;
  	buffer_init (&buf, len);
  	for (i = 0; i < npackets; ++i) {
  		buffer_add_int (&buf, buffer_len (packets [i].data) + 11);
  		buffer_add_int (&buf, packets [i].id);
  		buffer_add_byte (&buf, 0x80); /* flags */
  		buffer_add_byte (&buf, (packets [i].error >> 8) & 0xff);
  		buffer_add_byte (&buf, packets [i].error);
  		buffer_add_buffer (&buf, packets [i].data);
  	}
  
  	res = transport_send (buf.buf, len);
  
  	buffer_free (&buf);
  
  	return res;
  }
  
  static gboolean
  send_reply_packet (int id, int error, Buffer *data)
  {
  	ReplyPacket packet;
  
  	memset (&packet, 0, sizeof (packet));
  	packet.id = id;
  	packet.error = error;
  	packet.data = data;
  
  	return send_reply_packets (1, &packet);
  }
  
  static void
  send_buffered_reply_packets (void)
  {
  	int i;
  
  	send_reply_packets (nreply_packets, reply_packets);
  	for (i = 0; i < nreply_packets; ++i)
  		buffer_free (reply_packets [i].data);
  	DEBUG_PRINTF (1, "[dbg] Sent %d buffered reply packets [at=%lx].\n", nreply_packets, (long)mono_100ns_ticks () / 10000);
  	nreply_packets = 0;
  }
  
  static void
  buffer_reply_packet (int id, int error, Buffer *data)
  {
  	ReplyPacket *p;
  
  	if (nreply_packets == 128)
  		send_buffered_reply_packets ();
  
  	p = &reply_packets [nreply_packets];
  	p->id = id;
  	p->error = error;
  	p->data = g_new0 (Buffer, 1);
  	buffer_init (p->data, buffer_len (data));
  	buffer_add_buffer (p->data, data);
  	nreply_packets ++;
  }
  
  
  /* Maps objid -> ObjRef */
  /* Protected by the loader lock */
  static GHashTable *objrefs;
  /* Protected by the loader lock */
  static GHashTable *obj_to_objref;
  /* Protected by the dbg lock */
  static MonoGHashTable *suspended_objs;
  
  
  
  static void
  objrefs_init (void)
  {
  	objrefs = g_hash_table_new_full (NULL, NULL, NULL, mono_debugger_free_objref);
  	obj_to_objref = g_hash_table_new (NULL, NULL);
  	suspended_objs = mono_g_hash_table_new_type_internal ((GHashFunc)mono_object_hash_internal, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, NULL, "Debugger Suspended Object Table");
  }
  
  static void
  objrefs_cleanup (void)
  {
  	g_hash_table_destroy (objrefs);
  	objrefs = NULL;
  }
  
  /*
   * Return an ObjRef for OBJ.
   */
  static ObjRef*
  get_objref (MonoObject *obj)
  {
  	ObjRef *ref;
  	GSList *reflist = NULL, *l;
  	int hash = 0;
  
  	if (obj == NULL)
  		return NULL;
  
  	if (suspend_count) {
  		/*
  		 * Have to keep object refs created during suspensions alive for the duration of the suspension, so GCs during invokes don't collect them.
  		 */
  		dbg_lock ();
  		mono_g_hash_table_insert_internal (suspended_objs, obj, NULL);
  		dbg_unlock ();
  	}
  
  	mono_loader_lock ();
  	
  	/* FIXME: The tables can grow indefinitely */
  
  	if (mono_gc_is_moving ()) {
  		/*
  		 * Objects can move, so use a hash table mapping hash codes to lists of
  		 * ObjRef structures.
  		 */
  		hash = mono_object_hash_internal (obj);
  
  		reflist = (GSList *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (hash));
  		for (l = reflist; l; l = l->next) {
  			ref = (ObjRef *)l->data;
  			if (ref && mono_gchandle_get_target_internal (ref->handle) == obj) {
  				mono_loader_unlock ();
  				return ref;
  			}
  		}
  	} else {
  		/* Use a hash table with masked pointers to internalize object references */
  		ref = (ObjRef *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)));
  		/* ref might refer to a different object with the same addr which was GCd */
  		if (ref && mono_gchandle_get_target_internal (ref->handle) == obj) {
  			mono_loader_unlock ();
  			return ref;
  		}
  	}
  
  	ref = g_new0 (ObjRef, 1);
  	ref->id = mono_atomic_inc_i32 (&objref_id);
  	ref->handle = mono_gchandle_new_weakref_internal (obj, FALSE);
  
  	g_hash_table_insert (objrefs, GINT_TO_POINTER (ref->id), ref);
  
  	if (mono_gc_is_moving ()) {
  		reflist = g_slist_append (reflist, ref);
  		g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (hash), reflist);
  	} else {
  		g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)), ref);
  	}
  
  	mono_loader_unlock ();
  
  	return ref;
  }
  
  static gboolean
  true_pred (gpointer key, gpointer value, gpointer user_data)
  {
  	return TRUE;
  }
  
  static void
  clear_suspended_objs (void)
  {
  	dbg_lock ();
  	mono_g_hash_table_foreach_remove (suspended_objs, true_pred, NULL);
  	dbg_unlock ();
  }
  
  static int
  get_objid (MonoObject *obj)
  {
  	if (!obj)
  		return 0;
  	else
  		return get_objref (obj)->id;
  }
  
  /*
   * Set OBJ to the object identified by OBJID.
   * Returns 0 or an error code if OBJID is invalid or the object has been garbage
   * collected.
   */
  static ErrorCode
  get_object_allow_null (int objid, MonoObject **obj)
  {
  	ObjRef *ref;
  
  	if (objid == 0) {
  		*obj = NULL;
  		return ERR_NONE;
  	}
  
  	if (!objrefs)
  		return ERR_INVALID_OBJECT;
  
  	mono_loader_lock ();
  
  	ref = (ObjRef *)g_hash_table_lookup (objrefs, GINT_TO_POINTER (objid));
  
  	if (ref) {
  		*obj = mono_gchandle_get_target_internal (ref->handle);
  		mono_loader_unlock ();
  		if (!(*obj))
  			return ERR_INVALID_OBJECT;
  		return ERR_NONE;
  	} else {
  		mono_loader_unlock ();
  		return ERR_INVALID_OBJECT;
  	}
  }
  
  static ErrorCode
  get_object (int objid, MonoObject **obj)
  {
  	ErrorCode err = get_object_allow_null (objid, obj);
  
  	if (err != ERR_NONE)
  		return err;
  	if (!(*obj))
  		return ERR_INVALID_OBJECT;
  	return ERR_NONE;
  }
  
  static int
  decode_objid (guint8 *buf, guint8 **endbuf, guint8 *limit)
  {
  	return decode_id (buf, endbuf, limit);
  }
  
  static void
  buffer_add_objid (Buffer *buf, MonoObject *o)
  {
  	buffer_add_id (buf, get_objid (o));
  }
  
  /*
   * IDS
   */
  
  typedef enum {
  	ID_ASSEMBLY = 0,
  	ID_MODULE = 1,
  	ID_TYPE = 2,
  	ID_METHOD = 3,
  	ID_FIELD = 4,
  	ID_DOMAIN = 5,
  	ID_PROPERTY = 6,
  	ID_NUM
  } IdType;
  
  /*
   * Represents a runtime structure accessible to the debugger client
   */
  typedef struct {
  	/* Unique id used in the wire protocol */
  	int id;
  	/* Domain of the runtime structure, NULL if the domain was unloaded */
  	MonoDomain *domain;
  	union {
  		gpointer val;
  		MonoClass *klass;
  		MonoMethod *method;
  		MonoImage *image;
  		MonoAssembly *assembly;
  		MonoClassField *field;
  		MonoDomain *domain;
  		MonoProperty *property;
  	} data;
  } Id;
  
  typedef struct {
  	/* Maps runtime structure -> Id */
  	/* Protected by the dbg lock */
  	GHashTable *val_to_id [ID_NUM];
  	/* Classes whose class load event has been sent */
  	/* Protected by the loader lock */
  	GHashTable *loaded_classes;
  	/* Maps MonoClass->GPtrArray of file names */
  	GHashTable *source_files;
  	/* Maps source file basename -> GSList of classes */
  	GHashTable *source_file_to_class;
  	/* Same with ignore-case */
  	GHashTable *source_file_to_class_ignorecase;
  } AgentDomainInfo;
  
  /* Maps id -> Id */
  /* Protected by the dbg lock */
  static GPtrArray *ids [ID_NUM];
  
  static void
  ids_init (void)
  {
  	int i;
  
  	for (i = 0; i < ID_NUM; ++i)
  		ids [i] = g_ptr_array_new ();
  }
  
  static void
  ids_cleanup (void)
  {
  	int i, j;
  
  	for (i = 0; i < ID_NUM; ++i) {
  		if (ids [i]) {
  			for (j = 0; j < ids [i]->len; ++j)
  				g_free (g_ptr_array_index (ids [i], j));
  			g_ptr_array_free (ids [i], TRUE);
  		}
  		ids [i] = NULL;
  	}
  }
  
  static void
  debugger_agent_free_domain_info (MonoDomain *domain)
  {
  	AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
  	int i, j;
  	GHashTableIter iter;
  	GPtrArray *file_names;
  	char *basename;
  	GSList *l;
  
  	if (info) {
  		for (i = 0; i < ID_NUM; ++i)
  			g_hash_table_destroy (info->val_to_id [i]);
  		g_hash_table_destroy (info->loaded_classes);
  
  		g_hash_table_iter_init (&iter, info->source_files);
  		while (g_hash_table_iter_next (&iter, NULL, (void**)&file_names)) {
  			for (i = 0; i < file_names->len; ++i)
  				g_free (g_ptr_array_index (file_names, i));
  			g_ptr_array_free (file_names, TRUE);
  		}
  
  		g_hash_table_iter_init (&iter, info->source_file_to_class);
  		while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
  			g_free (basename);
  			g_slist_free (l);
  		}
  
  		g_hash_table_iter_init (&iter, info->source_file_to_class_ignorecase);
  		while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
  			g_free (basename);
  			g_slist_free (l);
  		}
  
  		g_free (info);
  	}
  
  	domain_jit_info (domain)->agent_info = NULL;
  
  	/* Clear ids referencing structures in the domain */
  	dbg_lock ();
  	for (i = 0; i < ID_NUM; ++i) {
  		if (ids [i]) {
  			for (j = 0; j < ids [i]->len; ++j) {
  				Id *id = (Id *)g_ptr_array_index (ids [i], j);
  				if (id->domain == domain)
  					id->domain = NULL;
  			}
  		}
  	}
  	dbg_unlock ();
  
  	mono_de_domain_remove (domain);
  }
  
  static AgentDomainInfo*
  get_agent_domain_info (MonoDomain *domain)
  {
  	AgentDomainInfo *info = NULL;
  	MonoJitDomainInfo *jit_info = domain_jit_info (domain);
  
  	info = (AgentDomainInfo *)jit_info->agent_info;
  
  	if (info) {
  		mono_memory_read_barrier ();
  		return info;
  	}
  
  	info = g_new0 (AgentDomainInfo, 1);
  	info->loaded_classes = g_hash_table_new (mono_aligned_addr_hash, NULL);
  	info->source_files = g_hash_table_new (mono_aligned_addr_hash, NULL);
  	info->source_file_to_class = g_hash_table_new (g_str_hash, g_str_equal);
  	info->source_file_to_class_ignorecase = g_hash_table_new (g_str_hash, g_str_equal);
  
  	mono_memory_write_barrier ();
  
  	gpointer other_info = mono_atomic_cas_ptr (&jit_info->agent_info, info, NULL);
  
  	if (other_info != NULL) {
  		g_hash_table_destroy (info->loaded_classes);
  		g_hash_table_destroy (info->source_files);
  		g_hash_table_destroy (info->source_file_to_class);
  		g_hash_table_destroy (info->source_file_to_class_ignorecase);
  		g_free (info);
  	}
  
  	return (AgentDomainInfo *)jit_info->agent_info;
  }
  
  static int
  get_id (MonoDomain *domain, IdType type, gpointer val)
  {
  	Id *id;
  	AgentDomainInfo *info;
  
  	if (val == NULL)
  		return 0;
  
  	info = get_agent_domain_info (domain);
  
  	dbg_lock ();
  
  	if (info->val_to_id [type] == NULL)
  		info->val_to_id [type] = g_hash_table_new (mono_aligned_addr_hash, NULL);
  
  	id = (Id *)g_hash_table_lookup (info->val_to_id [type], val);
  	if (id) {
  		dbg_unlock ();
  		return id->id;
  	}
  
  	id = g_new0 (Id, 1);
  	/* Reserve id 0 */
  	id->id = ids [type]->len + 1;
  	id->domain = domain;
  	id->data.val = val;
  
  	g_hash_table_insert (info->val_to_id [type], val, id);
  	g_ptr_array_add (ids [type], id);
  
  	dbg_unlock ();
  
  	return id->id;
  }
  
  static gpointer
  decode_ptr_id (guint8 *buf, guint8 **endbuf, guint8 *limit, IdType type, MonoDomain **domain, ErrorCode *err)
  {
  	Id *res;
  
  	int id = decode_id (buf, endbuf, limit);
  
  	*err = ERR_NONE;
  	if (domain)
  		*domain = NULL;
  
  	if (id == 0)
  		return NULL;
  
  	// FIXME: error handling
  	dbg_lock ();
  	g_assert (id > 0 && id <= ids [type]->len);
  
  	res = (Id *)g_ptr_array_index (ids [type], GPOINTER_TO_INT (id - 1));
  	dbg_unlock ();
  
  	if (res->domain == NULL || res->domain->state == MONO_APPDOMAIN_UNLOADED) {
  		DEBUG_PRINTF (1, "ERR_UNLOADED, id=%d, type=%d.\n", id, type);
  		*err = ERR_UNLOADED;
  		return NULL;
  	}
  
  	if (domain)
  		*domain = res->domain;
  
  	return res->data.val;
  }
  
  static int
  buffer_add_ptr_id (Buffer *buf, MonoDomain *domain, IdType type, gpointer val)
  {
  	int id = get_id (domain, type, val);
  
  	buffer_add_id (buf, id);
  	return id;
  }
  
  static MonoClass*
  decode_typeid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
  {
  	MonoClass *klass;
  
  	klass = (MonoClass *)decode_ptr_id (buf, endbuf, limit, ID_TYPE, domain, err);
  	if (G_UNLIKELY (log_level >= 2) && klass) {
  		char *s;
  
  		s = mono_type_full_name (m_class_get_byval_arg (klass));
  		DEBUG_PRINTF (2, "[dbg]   recv class [%s]\n", s);
  		g_free (s);
  	}
  	return klass;
  }
  
  static MonoAssembly*
  decode_assemblyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
  {
  	return (MonoAssembly *)decode_ptr_id (buf, endbuf, limit, ID_ASSEMBLY, domain, err);
  }
  
  static MonoImage*
  decode_moduleid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
  {
  	return (MonoImage *)decode_ptr_id (buf, endbuf, limit, ID_MODULE, domain, err);
  }
  
  static MonoMethod*
  decode_methodid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
  {
  	MonoMethod *m;
  
  	m = (MonoMethod *)decode_ptr_id (buf, endbuf, limit, ID_METHOD, domain, err);
  	if (G_UNLIKELY (log_level >= 2) && m) {
  		char *s;
  
  		s = mono_method_full_name (m, TRUE);
  		DEBUG_PRINTF (2, "[dbg]   recv method [%s]\n", s);
  		g_free (s);
  	}
  	return m;
  }
  
  static MonoClassField*
  decode_fieldid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
  {
  	return (MonoClassField *)decode_ptr_id (buf, endbuf, limit, ID_FIELD, domain, err);
  }
  
  static MonoDomain*
  decode_domainid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
  {
  	return (MonoDomain *)decode_ptr_id (buf, endbuf, limit, ID_DOMAIN, domain, err);
  }
  
  static MonoProperty*
  decode_propertyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
  {
  	return (MonoProperty *)decode_ptr_id (buf, endbuf, limit, ID_PROPERTY, domain, err);
  }
  
  static void
  buffer_add_typeid (Buffer *buf, MonoDomain *domain, MonoClass *klass)
  {
  	buffer_add_ptr_id (buf, domain, ID_TYPE, klass);
  	if (G_UNLIKELY (log_level >= 2) && klass) {
  		char *s;
  
  		s = mono_type_full_name (m_class_get_byval_arg (klass));
  		if (is_debugger_thread ())
  			DEBUG_PRINTF (2, "[dbg]   send class [%s]\n", s);
  		else
  			DEBUG_PRINTF (2, "[%p]   send class [%s]\n", (gpointer) (gsize) mono_native_thread_id_get (), s);
  		g_free (s);
  	}
  }
  
  static void
  buffer_add_methodid (Buffer *buf, MonoDomain *domain, MonoMethod *method)
  {
  	buffer_add_ptr_id (buf, domain, ID_METHOD, method);
  	if (G_UNLIKELY (log_level >= 2) && method) {
  		char *s;
  
  		s = mono_method_full_name (method, 1);
  		if (is_debugger_thread ())
  			DEBUG_PRINTF (2, "[dbg]   send method [%s]\n", s);
  		else
  			DEBUG_PRINTF (2, "[%p]   send method [%s]\n", (gpointer) (gsize) mono_native_thread_id_get (), s);
  		g_free (s);
  	}
  }
  
  static void
  buffer_add_assemblyid (Buffer *buf, MonoDomain *domain, MonoAssembly *assembly)
  {
  	int id;
  
  	id = buffer_add_ptr_id (buf, domain, ID_ASSEMBLY, assembly);
  	if (G_UNLIKELY (log_level >= 2) && assembly)
  		DEBUG_PRINTF (2, "[dbg]   send assembly [%s][%s][%d]\n", assembly->aname.name, domain->friendly_name, id);
  }
  
  static void
  buffer_add_moduleid (Buffer *buf, MonoDomain *domain, MonoImage *image)
  {
  	buffer_add_ptr_id (buf, domain, ID_MODULE, image);
  }
  
  static void
  buffer_add_fieldid (Buffer *buf, MonoDomain *domain, MonoClassField *field)
  {
  	buffer_add_ptr_id (buf, domain, ID_FIELD, field);
  }
  
  static void
  buffer_add_propertyid (Buffer *buf, MonoDomain *domain, MonoProperty *property)
  {
  	buffer_add_ptr_id (buf, domain, ID_PROPERTY, property);
  }
  
  static void
  buffer_add_domainid (Buffer *buf, MonoDomain *domain)
  {
  	buffer_add_ptr_id (buf, domain, ID_DOMAIN, domain);
  }
  
  static void invoke_method (void);
  
  /*
   * SUSPEND/RESUME
   */
  
  static MonoJitInfo*
  get_top_method_ji (gpointer ip, MonoDomain **domain, gpointer *out_ip)
  {
  	MonoJitInfo *ji;
  
  	if (out_ip)
  		*out_ip = ip;
  
  	ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, domain);
  	if (!ji) {
  		/* Could be an interpreter method */
  
  		MonoLMF *lmf = mono_get_lmf ();
  		MonoInterpFrameHandle *frame;
  
  		g_assert (((gsize)lmf->previous_lmf) & 2);
  		MonoLMFExt *ext = (MonoLMFExt*)lmf;
  
  		g_assert (ext->kind == MONO_LMFEXT_INTERP_EXIT || ext->kind == MONO_LMFEXT_INTERP_EXIT_WITH_CTX);
  		frame = (MonoInterpFrameHandle*)ext->interp_exit_data;
  		ji = mini_get_interp_callbacks ()->frame_get_jit_info (frame);
  		if (domain)
  			*domain = mono_domain_get ();
  		if (out_ip)
  			*out_ip = mini_get_interp_callbacks ()->frame_get_ip (frame);
  	}
  	return ji;
  }
  
  /*
   * save_thread_context:
   *
   *   Set CTX as the current threads context which is used for computing stack traces.
   * This function is signal-safe.
   */
  static void
  save_thread_context (MonoContext *ctx)
  {
  	DebuggerTlsData *tls;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  
  	if (ctx)
  		mono_thread_state_init_from_monoctx (&tls->context, ctx);
  	else
  		mono_thread_state_init_from_current (&tls->context);
  }
  
  static MonoCoopMutex suspend_mutex;
  
  /* Cond variable used to wait for suspend_count becoming 0 */
  static MonoCoopCond suspend_cond;
  
  /* Semaphore used to wait for a thread becoming suspended */
  static MonoCoopSem suspend_sem;
  
  static void
  suspend_init (void)
  {
  	mono_coop_mutex_init (&suspend_mutex);
  	mono_coop_cond_init (&suspend_cond);	
  	mono_coop_sem_init (&suspend_sem, 0);
  }
  
  typedef struct
  {
  	StackFrameInfo last_frame;
  	gboolean last_frame_set;
  	MonoContext ctx;
  	gpointer lmf;
  	MonoDomain *domain;
  } GetLastFrameUserData;
  
  static gboolean
  get_last_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
  {
  	GetLastFrameUserData *data = (GetLastFrameUserData *)user_data;
  
  	if (info->type == FRAME_TYPE_MANAGED_TO_NATIVE || info->type == FRAME_TYPE_TRAMPOLINE)
  		return FALSE;
  
  	if (!data->last_frame_set) {
  		/* Store the last frame */
  		memcpy (&data->last_frame, info, sizeof (StackFrameInfo));
  		data->last_frame_set = TRUE;
  		return FALSE;
  	} else {
  		/* Store the context/lmf for the frame above the last frame */
  		memcpy (&data->ctx, ctx, sizeof (MonoContext));
  		data->lmf = info->lmf;
  		data->domain = info->domain;
  		return TRUE;
  	}
  }
  
  static void
  copy_unwind_state_from_frame_data (MonoThreadUnwindState *to, GetLastFrameUserData *data, gpointer jit_tls)
  {
  	memcpy (&to->ctx, &data->ctx, sizeof (MonoContext));
  
  	to->unwind_data [MONO_UNWIND_DATA_DOMAIN] = data->domain;
  	to->unwind_data [MONO_UNWIND_DATA_LMF] = data->lmf;
  	to->unwind_data [MONO_UNWIND_DATA_JIT_TLS] = jit_tls;
  	to->valid = TRUE;
  }
  
  /*
   * thread_interrupt:
   *
   *   Process interruption of a thread. This should be signal safe.
   *
   * This always runs in the debugger thread.
   */
  static void
  thread_interrupt (DebuggerTlsData *tls, MonoThreadInfo *info, MonoJitInfo *ji)
  {
  	gpointer ip;
  	MonoNativeThreadId tid;
  
  	g_assert (info);
  
  	ip = MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx);
  	tid = mono_thread_info_get_tid (info);
  
  	// FIXME: Races when the thread leaves managed code before hitting a single step
  	// event.
  
  	if (ji && !ji->is_trampoline) {
  		/* Running managed code, will be suspended by the single step code */
  		DEBUG_PRINTF (1, "[%p] Received interrupt while at %s(%p), continuing.\n", (gpointer)(gsize)tid, jinfo_get_method (ji)->name, ip);
  	} else {
  		/* 
  		 * Running native code, will be suspended when it returns to/enters 
  		 * managed code. Treat it as already suspended.
  		 * This might interrupt the code in mono_de_process_single_step (), we use the
  		 * tls->suspending flag to avoid races when that happens.
  		 */
  		if (!tls->suspended && !tls->suspending) {
  			GetLastFrameUserData data;
  
  			// FIXME: printf is not signal safe, but this is only used during
  			// debugger debugging
  			if (ip)
  				DEBUG_PRINTF (1, "[%p] Received interrupt while at %p, treating as suspended.\n", (gpointer)(gsize)tid, ip);
  			//save_thread_context (&ctx);
  
  			if (!tls->thread)
  				/* Already terminated */
  				return;
  
  			/*
  			 * We are in a difficult position: we want to be able to provide stack
  			 * traces for this thread, but we can't use the current ctx+lmf, since
  			 * the thread is still running, so it might return to managed code,
  			 * making these invalid.
  			 * So we start a stack walk and save the first frame, along with the
  			 * parent frame's ctx+lmf. This (hopefully) works because the thread will be 
  			 * suspended when it returns to managed code, so the parent's ctx should
  			 * remain valid.
  			 */
  			MonoThreadUnwindState *state = mono_thread_info_get_suspend_state (info);
  
  			data.last_frame_set = FALSE;
  			mono_get_eh_callbacks ()->mono_walk_stack_with_state (get_last_frame, state, MONO_UNWIND_SIGNAL_SAFE, &data);
  			if (data.last_frame_set) {
  				gpointer jit_tls = tls->thread->thread_info->jit_data;
  
  				memcpy (&tls->async_last_frame, &data.last_frame, sizeof (StackFrameInfo));
  
  				if (data.last_frame.type == FRAME_TYPE_INTERP_TO_MANAGED || data.last_frame.type == FRAME_TYPE_INTERP_TO_MANAGED_WITH_CTX) {
  					/*
  					 * Store the current lmf instead of the parent one, since that
  					 * contains the interp exit data.
  					 */
  					data.lmf = state->unwind_data [MONO_UNWIND_DATA_LMF];
  				}
  
  				copy_unwind_state_from_frame_data (&tls->async_state, &data, jit_tls);
  				/* Don't set tls->context, it could race with the thread processing a breakpoint etc. */
  			} else {
  				tls->async_state.valid = FALSE;
  			}
  
  			mono_memory_barrier ();
  
  			tls->suspended = TRUE;
  			mono_coop_sem_post (&suspend_sem);
  		}
  	}
  }
  
  /*
   * reset_native_thread_suspend_state:
   * 
   *   Reset the suspended flag and state on native threads
   */
  static void
  reset_native_thread_suspend_state (gpointer key, gpointer value, gpointer user_data)
  {
  	DebuggerTlsData *tls = (DebuggerTlsData *)value;
  
  	if (!tls->really_suspended && tls->suspended) {
  		tls->suspended = FALSE;
  		/*
  		 * The thread might still be running if it was executing native code, so the state won't be invalided by
  		 * suspend_current ().
  		 */
  		tls->context.valid = FALSE;
  		tls->async_state.valid = FALSE;
  		invalidate_frames (tls);
  	}
  	tls->resume_count_internal++;
  
  }
  
  typedef struct {
  	DebuggerTlsData *tls;
  	gboolean valid_info;
  } InterruptData;
  
  static SuspendThreadResult
  debugger_interrupt_critical (MonoThreadInfo *info, gpointer user_data)
  {
  	InterruptData *data = (InterruptData *)user_data;
  	MonoJitInfo *ji;
  
  	data->valid_info = TRUE;
  	MonoDomain *domain = (MonoDomain *) mono_thread_info_get_suspend_state (info)->unwind_data [MONO_UNWIND_DATA_DOMAIN];
  	if (!domain) {
  		/* not attached */
  		ji = NULL;
  	} else {
  		ji = mono_jit_info_table_find_internal ( domain, MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx), TRUE, TRUE);
  	}
  
  	/* This is signal safe */
  	thread_interrupt (data->tls, info, ji);
  	return MonoResumeThread;
  }
  
  /*
   * notify_thread:
   *
   *   Notify a thread that it needs to suspend.
   */
  static void
  notify_thread (gpointer key, gpointer value, gpointer user_data)
  {
  	MonoInternalThread *thread = (MonoInternalThread *)key;
  	DebuggerTlsData *tls = (DebuggerTlsData *)value;
  	MonoNativeThreadId tid = MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid);
  
  	if (mono_thread_internal_is_current (thread) || tls->terminated)
  		return;
  
  	DEBUG_PRINTF (1, "[%p] Interrupting %p...\n", (gpointer) (gsize) mono_native_thread_id_get (), (gpointer)(gsize)tid);
  
  	/* This is _not_ equivalent to mono_thread_internal_abort () */
  	InterruptData interrupt_data = { 0 };
  	interrupt_data.tls = tls;
  
  	mono_thread_info_safe_suspend_and_run ((MonoNativeThreadId)(gsize)thread->tid, FALSE, debugger_interrupt_critical, &interrupt_data);
  	if (!interrupt_data.valid_info) {
  		DEBUG_PRINTF (1, "[%p] mono_thread_info_suspend_sync () failed for %p...\n", (gpointer) (gsize) mono_native_thread_id_get (), (gpointer)tid);
  		/* 
  		 * Attached thread which died without detaching.
  		 */
  		tls->terminated = TRUE;
  	}
  }
  
  static void
  process_suspend (DebuggerTlsData *tls, MonoContext *ctx)
  {
  	guint8 *ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
  	MonoJitInfo *ji;
  	MonoMethod *method;
  
  	if (mono_loader_lock_is_owned_by_self ()) {
  		/*
  		 * Shortcut for the check in suspend_current (). This speeds up processing
  		 * when executing long running code inside the loader lock, i.e. assembly load
  		 * hooks.
  		 */
  		return;
  	}
  
  	if (is_debugger_thread ())
  		return;
  
  	/* Prevent races with mono_debugger_agent_thread_interrupt () */
  	if (suspend_count - tls->resume_count > 0)
  		tls->suspending = TRUE;
  
  	DEBUG_PRINTF (1, "[%p] Received single step event for suspending.\n", (gpointer) (gsize) mono_native_thread_id_get ());
  
  	if (suspend_count - tls->resume_count == 0) {
  		/* 
  		 * We are executing a single threaded invoke but the single step for 
  		 * suspending is still active.
  		 * FIXME: This slows down single threaded invokes.
  		 */
  		DEBUG_PRINTF (1, "[%p] Ignored during single threaded invoke.\n", (gpointer) (gsize) mono_native_thread_id_get ());
  		return;
  	}
  
  	ji = get_top_method_ji (ip, NULL, NULL);
  	g_assert (ji);
  	/* Can't suspend in these methods */
  	method = jinfo_get_method (ji);
  	if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
  		return;
  
  	save_thread_context (ctx);
  
  	suspend_current ();
  }
  
  
  /* Conditionally call process_suspend depending oh the current state */
  static gboolean
  try_process_suspend (void *the_tls, MonoContext *ctx, gboolean from_breakpoint)
  {
  	DebuggerTlsData *tls = (DebuggerTlsData*)the_tls;
  	/* if there is a suspend pending that is not executed yes */
  	if (suspend_count > 0) { 
  		/* Fastpath during invokes, see in process_suspend () */
  		/* if there is a suspend pending but this thread is already resumed, we shouldn't suspend it again and the breakpoint/ss can run */
  		if (suspend_count - tls->resume_count == 0) 
  			return FALSE;
  		/* if there is in a invoke the breakpoint/step should be executed even with the suspend pending */
  		if (tls->invoke) 
  			return FALSE;
  		/* with the multithreaded single step check if there is a suspend_count pending in the current thread and not in the vm */
  		if (from_breakpoint && tls->suspend_count <= tls->resume_count_internal)
  			return FALSE;
  		process_suspend (tls, ctx);
  		return TRUE;
  	} /* if there isn't any suspend pending, the breakpoint/ss will be executed and will suspend then vm when the event is sent */
  	return FALSE;
  }
  
  /*
   * suspend_vm:
   *
   * Increase the suspend count of the VM. While the suspend count is greater 
   * than 0, runtime threads are suspended at certain points during execution.
   */
  static void
  suspend_vm (void)
  {
  	gboolean tp_suspend = FALSE;
  	mono_loader_lock ();
  
  	mono_coop_mutex_lock (&suspend_mutex);
  
  	suspend_count ++;
  
  	DEBUG_PRINTF (1, "[%p] Suspending vm...\n", (gpointer) (gsize) mono_native_thread_id_get ());
  
  	if (suspend_count == 1) {
  		// FIXME: Is it safe to call this inside the lock ?
  		mono_de_start_single_stepping ();
  		mono_g_hash_table_foreach (thread_to_tls, notify_thread, NULL);
  	}
  
  	mono_coop_mutex_unlock (&suspend_mutex);
  
  	if (suspend_count == 1)
  		/*
  		 * Suspend creation of new threadpool threads, since they cannot run
  		 */
  		tp_suspend = TRUE;
  	mono_loader_unlock ();
  
  #ifndef ENABLE_NETCORE
  	if (tp_suspend)
  		mono_threadpool_suspend ();
  #endif
  }
  
  /*
   * resume_vm:
   *
   * Decrease the suspend count of the VM. If the count reaches 0, runtime threads
   * are resumed.
   */
  static void
  resume_vm (void)
  {
  	g_assert (is_debugger_thread ());
  	gboolean tp_resume = FALSE;
  
  	mono_loader_lock ();
  
  	mono_coop_mutex_lock (&suspend_mutex);
  
  	g_assert (suspend_count > 0);
  	suspend_count --;
  
  	DEBUG_PRINTF (1, "[%p] Resuming vm, suspend count=%d...\n", (gpointer) (gsize) mono_native_thread_id_get (), suspend_count);
  
  	if (suspend_count == 0) {
  		// FIXME: Is it safe to call this inside the lock ?
  		mono_de_stop_single_stepping ();
  		mono_g_hash_table_foreach (thread_to_tls, reset_native_thread_suspend_state, NULL);
  	}
  
  	/* Signal this even when suspend_count > 0, since some threads might have resume_count > 0 */
  	mono_coop_cond_broadcast (&suspend_cond);
  
  	mono_coop_mutex_unlock (&suspend_mutex);
  	//g_assert (err == 0);
  
  	if (suspend_count == 0)
  		tp_resume = TRUE;
  	mono_loader_unlock ();
  
  #ifndef ENABLE_NETCORE
  	if (tp_resume)
  		mono_threadpool_resume ();
  #endif
  }
  
  /*
   * resume_thread:
   *
   *   Resume just one thread.
   */
  static void
  resume_thread (MonoInternalThread *thread)
  {
  	DebuggerTlsData *tls;
  
  	g_assert (is_debugger_thread ());
  
  	mono_loader_lock ();
  
  	tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  	g_assert (tls);
  
  	mono_coop_mutex_lock (&suspend_mutex);
  
  	g_assert (suspend_count > 0);
  
  	DEBUG_PRINTF (1, "[sdb] Resuming thread %p...\n", (gpointer)(gssize)thread->tid);
  
  	tls->resume_count += suspend_count;
  	tls->resume_count_internal += tls->suspend_count;
  	tls->suspend_count = 0;
  
  	/* 
  	 * Signal suspend_count without decreasing suspend_count, the threads will wake up
  	 * but only the one whose resume_count field is > 0 will be resumed.
  	 */
  	mono_coop_cond_broadcast (&suspend_cond);
  
  	mono_coop_mutex_unlock (&suspend_mutex);
  	//g_assert (err == 0);
  
  	mono_loader_unlock ();
  }
  
  static void
  free_frames (StackFrame **frames, int nframes)
  {
  	int i;
  
  	for (i = 0; i < nframes; ++i) {
  		if (frames [i]->jit)
  			mono_debug_free_method_jit_info (frames [i]->jit);
  		g_free (frames [i]);
  	}
  	g_free (frames);
  }
  
  static void
  invalidate_frames (DebuggerTlsData *tls)
  {
  	mono_loader_lock ();
  
  	if (!tls)
  		tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  
  	free_frames (tls->frames, tls->frame_count);
  	tls->frame_count = 0;
  	tls->frames = NULL;
  
  	free_frames (tls->restore_frames, tls->restore_frame_count);
  	tls->restore_frame_count = 0;
  	tls->restore_frames = NULL;
  
  	mono_loader_unlock ();
  }
  
  /*
   * suspend_current:
   *
   *   Suspend the current thread until the runtime is resumed. If the thread has a 
   * pending invoke, then the invoke is executed before this function returns. 
   */
  static void
  suspend_current (void)
  {
  	DebuggerTlsData *tls;
  
  	g_assert (!is_debugger_thread ());
  
  	if (mono_loader_lock_is_owned_by_self ()) {
  		/*
  		 * If we own the loader mutex, can't suspend until we release it, since the
  		 * whole runtime can deadlock otherwise.
  		 */
  		return;
  	}
  
   	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  
  	gboolean do_resume = FALSE;
  	while (!do_resume) {
  		mono_coop_mutex_lock (&suspend_mutex);
  
  		tls->suspending = FALSE;
  		tls->really_suspended = TRUE;
  
  		if (!tls->suspended) {
  			tls->suspended = TRUE;
  			mono_coop_sem_post (&suspend_sem);
  		}
  
  		mono_debugger_log_suspend (tls);
  		DEBUG_PRINTF (1, "[%p] Suspended.\n", (gpointer) (gsize) mono_native_thread_id_get ());
  
  		while (suspend_count - tls->resume_count > 0) {
  			mono_coop_cond_wait (&suspend_cond, &suspend_mutex);
  		}
  
  		tls->suspended = FALSE;
  		tls->really_suspended = FALSE;
  
  		mono_coop_mutex_unlock (&suspend_mutex);
  
  		mono_debugger_log_resume (tls);
  		DEBUG_PRINTF (1, "[%p] Resumed.\n", (gpointer) (gsize) mono_native_thread_id_get ());
  
  		if (tls->pending_invoke) {
  			/* Save the original context */
  			tls->pending_invoke->has_ctx = TRUE;
  			tls->pending_invoke->ctx = tls->context.ctx;
  
  			invoke_method ();
  
  			/* Have to suspend again */
  		} else {
  			do_resume = TRUE;
  		}
  	}
  
  	/* The frame info becomes invalid after a resume */
  	tls->context.valid = FALSE;
  	tls->async_state.valid = FALSE;
  	invalidate_frames (tls);
  	mono_stopwatch_start (&tls->step_time);
  }
  
  static void
  count_thread (gpointer key, gpointer value, gpointer user_data)
  {
  	DebuggerTlsData *tls = (DebuggerTlsData *)value;
  
  	if (!tls->suspended && !tls->terminated && !mono_thread_internal_is_current (tls->thread))
  		*(int*)user_data = *(int*)user_data + 1;
  }
  
  static int
  count_threads_to_wait_for (void)
  {
  	int count = 0;
  
  	mono_loader_lock ();
  	mono_g_hash_table_foreach (thread_to_tls, count_thread, &count);
  	mono_loader_unlock ();
  
  	return count;
  }	
  
  /*
   * wait_for_suspend:
   *
   *   Wait until the runtime is completely suspended.
   */
  static void
  wait_for_suspend (void)
  {
  	int nthreads, nwait, err;
  	gboolean waited = FALSE;
  
  	// FIXME: Threads starting/stopping ?
  	mono_loader_lock ();
  	nthreads = mono_g_hash_table_size (thread_to_tls);
  	mono_loader_unlock ();
  
  	while (TRUE) {
  		nwait = count_threads_to_wait_for ();
  		if (nwait) {
  			DEBUG_PRINTF (1, "Waiting for %d(%d) threads to suspend...\n", nwait, nthreads);
  			err = mono_coop_sem_wait (&suspend_sem, MONO_SEM_FLAGS_NONE);
  			g_assert (err == 0);
  			waited = TRUE;
  		} else {
  			break;
  		}
  	}
  
  	if (waited)
  		DEBUG_PRINTF (1, "%d threads suspended.\n", nthreads);
  }
  
  /*
   * is_suspended:
   *
   *   Return whenever the runtime is suspended.
   */
  static gboolean
  is_suspended (void)
  {
  	return count_threads_to_wait_for () == 0;
  }
  
  static void
  no_seq_points_found (MonoMethod *method, int offset)
  {
  	/*
  	 * This can happen in full-aot mode with assemblies AOTed without the 'soft-debug' option to save space.
  	 */
  	printf ("Unable to find seq points for method '%s', offset 0x%x.\n", mono_method_full_name (method, TRUE), offset);
  }
  
  static int
  calc_il_offset (MonoDomain *domain, MonoMethod *method, int native_offset, gboolean is_top_frame)
  {
  	int ret = -1;
  	if (is_top_frame) {
  		SeqPoint sp;
  		/* mono_debug_il_offset_from_address () doesn't seem to be precise enough (#2092) */
  		if (mono_find_prev_seq_point_for_native_offset (domain, method, native_offset, NULL, &sp))
  			ret = sp.il_offset;
  	}
  	if (ret == -1)
  		ret = mono_debug_il_offset_from_address (method, domain, native_offset);
  	return ret;
  }
  
  typedef struct {
  	DebuggerTlsData *tls;
  	GSList *frames;
  	gboolean set_debugger_flag;
  } ComputeFramesUserData;
  
  static gboolean
  process_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
  {
  	ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
  	StackFrame *frame;
  	MonoMethod *method, *actual_method, *api_method;
  	int flags = 0;
  
  	mono_loader_lock ();
  	if (info->type != FRAME_TYPE_MANAGED && info->type != FRAME_TYPE_INTERP && info->type != FRAME_TYPE_MANAGED_TO_NATIVE) {
  		if (info->type == FRAME_TYPE_DEBUGGER_INVOKE) {
  			/* Mark the last frame as an invoke frame */
  			if (ud->frames)
  				((StackFrame*)g_slist_last (ud->frames)->data)->flags |= FRAME_FLAG_DEBUGGER_INVOKE;
  			else
  				ud->set_debugger_flag = TRUE;
  		}
  		mono_loader_unlock ();
  		return FALSE;
  	}
  
  	if (info->ji)
  		method = jinfo_get_method (info->ji);
  	else
  		method = info->method;
  	actual_method = info->actual_method;
  	api_method = method;
  
  	if (!method) {
  		mono_loader_unlock ();
  		return FALSE;
  	}
  
  	if (!method || (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD && method->wrapper_type != MONO_WRAPPER_MANAGED_TO_NATIVE)) {
  		mono_loader_unlock ();
  		return FALSE;
  	}
  
  	if (info->il_offset == -1) {
  		info->il_offset = calc_il_offset (info->domain, method, info->native_offset, ud->frames == NULL);
  	}
  
  	DEBUG_PRINTF (1, "\tFrame: %s:[il=0x%x, native=0x%x] %d\n", mono_method_full_name (method, TRUE), info->il_offset, info->native_offset, info->managed);
  
  	if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
  		if (!CHECK_PROTOCOL_VERSION (2, 17)) {
  			/* Older clients can't handle this flag */
  			mono_loader_unlock ();
  			return FALSE;
  		}
  		api_method = mono_marshal_method_from_wrapper (method);
  		if (!api_method) {
  			mono_loader_unlock ();
  			return FALSE;
  		}
  		actual_method = api_method;
  		flags |= FRAME_FLAG_NATIVE_TRANSITION;
  	}
  
  	if (ud->set_debugger_flag) {
  		g_assert (g_slist_length (ud->frames) == 0);
  		flags |= FRAME_FLAG_DEBUGGER_INVOKE;
  		ud->set_debugger_flag = FALSE;
  	}
  
  	frame = g_new0 (StackFrame, 1);
  	frame->de.ji = info->ji;
  	frame->de.domain = info->domain;
  	frame->de.method = method;
  	frame->de.native_offset = info->native_offset;
  
  	frame->actual_method = actual_method;
  	frame->api_method = api_method;
  	frame->il_offset = info->il_offset;
  	frame->flags = flags;
  	frame->interp_frame = info->interp_frame;
  	frame->frame_addr = info->frame_addr;
  	if (info->reg_locations)
  		memcpy (frame->reg_locations, info->reg_locations, MONO_MAX_IREGS * sizeof (host_mgreg_t*));
  	if (ctx) {
  		frame->ctx = *ctx;
  		frame->has_ctx = TRUE;
  	}
  
  	ud->frames = g_slist_append (ud->frames, frame);
  
  	mono_loader_unlock ();
  	return FALSE;
  }
  
  static gint32 isFixedSizeArray (MonoClassField *f)
  {
  	ERROR_DECL (error);
  	if (!CHECK_PROTOCOL_VERSION (2, 53) || f->type->type != MONO_TYPE_VALUETYPE) {
  		return 1;
  	}
  	MonoCustomAttrInfo *cinfo;
  	MonoCustomAttrEntry *attr;
  	int aindex;
  	gint32 ret = 1;
  	cinfo = mono_custom_attrs_from_field_checked (f->parent, f, error);
  	goto_if_nok (error, leave);
  	attr = NULL;
  	if (cinfo) {
  		for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
  			MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
  			MonoClass *fixed_size_class = mono_class_try_get_fixed_buffer_class ();
  			if (fixed_size_class != NULL && mono_class_has_parent (ctor_class, fixed_size_class)) {
  				attr = &cinfo->attrs [aindex];
  				gpointer *typed_args, *named_args;
  				CattrNamedArg *arginfo;
  				int num_named_args;
  
  				mono_reflection_create_custom_attr_data_args_noalloc (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size,
  																	&typed_args, &named_args, &num_named_args, &arginfo, error);
  				if (!is_ok (error)) {
  					ret = 0;
  					goto leave;
  				}
  				ret = *(gint32*)typed_args [1];
  				g_free (typed_args [1]);
  				g_free (typed_args);
  				g_free (named_args);
  				g_free (arginfo);
  				return ret;
  			}
  		}
  	}
  leave:
  	mono_error_cleanup (error);
  	return ret;
  }
  
  static gboolean
  process_filter_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
  {
  	ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
  
  	/*
  	 * 'tls->filter_ctx' is the location of the throw site.
  	 *
  	 * mono_walk_stack() will never actually hit the throw site, but unwind
  	 * directly from the filter to the call site; we abort stack unwinding here
  	 * once this happens and resume from the throw site.
  	 */
  	if (info->frame_addr >= MONO_CONTEXT_GET_SP (&ud->tls->filter_state.ctx))
  		return TRUE;
  
  	return process_frame (info, ctx, user_data);
  }
  
  /*
   * Return a malloc-ed list of StackFrame structures.
   */
  static StackFrame**
  compute_frame_info_from (MonoInternalThread *thread, DebuggerTlsData *tls, MonoThreadUnwindState *state, int *out_nframes)
  {
  	ComputeFramesUserData user_data;
  	MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
  	StackFrame **res;
  	int i, nframes;
  	GSList *l;
  
  	user_data.tls = tls;
  	user_data.frames = NULL;
  
  	mono_walk_stack_with_state (process_frame, state, opts, &user_data);
  
  	nframes = g_slist_length (user_data.frames);
  	res = g_new0 (StackFrame*, nframes);
  	l = user_data.frames;
  	for (i = 0; i < nframes; ++i) {
  		res [i] = (StackFrame *)l->data;
  		l = l->next;
  	}
  	*out_nframes = nframes;
  
  	return res;
  }
  
  static void
  compute_frame_info (MonoInternalThread *thread, DebuggerTlsData *tls, gboolean force_update)
  {
  	ComputeFramesUserData user_data;
  	GSList *tmp;
  	int i, findex, new_frame_count;
  	StackFrame **new_frames, *f;
  	MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
  
  	// FIXME: Locking on tls
  	if (tls->frames && tls->frames_up_to_date && !force_update)
  		return;
  
  	DEBUG_PRINTF (1, "Frames for %p(tid=%lx):\n", thread, (glong)thread->tid);
  
  	if (CHECK_PROTOCOL_VERSION (2, 52)) {
  		if (tls->restore_state.valid && MONO_CONTEXT_GET_IP (&tls->context.ctx) != MONO_CONTEXT_GET_IP (&tls->restore_state.ctx)) {
  			new_frames = compute_frame_info_from (thread, tls, &tls->restore_state, &new_frame_count);
  			invalidate_frames (tls);
  
  			tls->frames = new_frames;
  			tls->frame_count = new_frame_count;
  			tls->frames_up_to_date = TRUE;
  			return;
  		}
  	}
  
  	user_data.tls = tls;
  	user_data.frames = NULL;
  	if (tls->terminated) {
  		tls->frame_count = 0;
  		return;
  	} if (!tls->really_suspended && tls->async_state.valid) {
  		/* Have to use the state saved by the signal handler */
  		process_frame (&tls->async_last_frame, NULL, &user_data);
  		mono_walk_stack_with_state (process_frame, &tls->async_state, opts, &user_data);
  	} else if (tls->filter_state.valid) {
  		/*
  		 * We are inside an exception filter.
  		 *
  		 * First we add all the frames from inside the filter; 'tls->ctx' has the current context.
  		 */
  		if (tls->context.valid) {
  			mono_walk_stack_with_state (process_filter_frame, &tls->context, opts, &user_data);
  			DEBUG_PRINTF (1, "\tFrame: <call filter>\n");
  		}
  		/*
  		 * After that, we resume unwinding from the location where the exception has been thrown.
  		 */
  		mono_walk_stack_with_state (process_frame, &tls->filter_state, opts, &user_data);
  	} else if (tls->context.valid) {
  		mono_walk_stack_with_state (process_frame, &tls->context, opts, &user_data);
  	} else {
  		// FIXME:
  		tls->frame_count = 0;
  		return;
  	}
  
  	new_frame_count = g_slist_length (user_data.frames);
  	new_frames = g_new0 (StackFrame*, new_frame_count);
  	findex = 0;
  	for (tmp = user_data.frames; tmp; tmp = tmp->next) {
  		f = (StackFrame *)tmp->data;
  
  		/* 
  		 * Reuse the id for already existing stack frames, so invokes don't invalidate
  		 * the still valid stack frames.
  		 */
  		for (i = 0; i < tls->frame_count; ++i) {
  			if (tls->frames [i]->frame_addr == f->frame_addr) {
  				f->id = tls->frames [i]->id;
  				break;
  			}
  		}
  
  		if (i >= tls->frame_count)
  			f->id = mono_atomic_inc_i32 (&frame_id);
  
  		new_frames [findex ++] = f;
  	}
  
  	g_slist_free (user_data.frames);
  
  	invalidate_frames (tls);
  
  	tls->frames = new_frames;
  	tls->frame_count = new_frame_count;
  	tls->frames_up_to_date = TRUE;
  
  	if (CHECK_PROTOCOL_VERSION (2, 52)) {
  		MonoJitTlsData *jit_data = thread->thread_info->jit_data;
  		gboolean has_interp_resume_state = FALSE;
  		MonoInterpFrameHandle interp_resume_frame = NULL;
  		gpointer interp_resume_ip = 0;
  		mini_get_interp_callbacks ()->get_resume_state (jit_data, &has_interp_resume_state, &interp_resume_frame, &interp_resume_ip);
  		if (has_interp_resume_state && tls->frame_count > 0) {
  			StackFrame *top_frame = tls->frames [0];
  			if (interp_resume_frame == top_frame->interp_frame) {
  				int native_offset = (int) ((uintptr_t) interp_resume_ip - (uintptr_t) top_frame->de.ji->code_start);
  				top_frame->il_offset = calc_il_offset (top_frame->de.domain, top_frame->de.method, native_offset, TRUE);
  			}
  		}
  	}
  }
  
  /*
   * GHFunc to emit an appdomain creation event
   * @param key Don't care
   * @param value A loaded appdomain
   * @param user_data Don't care
   */
  static void
  emit_appdomain_load (gpointer key, gpointer value, gpointer user_data)
  {
  	process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, value);
  	g_hash_table_foreach (get_agent_domain_info ((MonoDomain *)value)->loaded_classes, emit_type_load, NULL);
  }
  
  /*
   * GHFunc to emit a thread start event
   * @param key A thread id
   * @param value A thread object
   * @param user_data Don't care
   */
  static void
  emit_thread_start (gpointer key, gpointer value, gpointer user_data)
  {
  	g_assert (!mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (GPOINTER_TO_UINT (key)), debugger_thread_id));
  	process_profiler_event (EVENT_KIND_THREAD_START, value);
  }
  
  /*
   * GFunc to emit an assembly load event
   * @param value A loaded assembly
   * @param user_data Don't care
   */
  static void
  emit_assembly_load (gpointer value, gpointer user_data)
  {
  	process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, value);
  }
  
  /*
   * GFunc to emit a type load event
   * @param value A loaded type
   * @param user_data Don't care
   */
  static void
  emit_type_load (gpointer key, gpointer value, gpointer user_data)
  {
  	process_profiler_event (EVENT_KIND_TYPE_LOAD, value);
  }
  
  
  static void gc_finalizing (MonoProfiler *prof)
  {
  	DebuggerTlsData *tls;
  
  	if (is_debugger_thread ())
  		return;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  	tls->gc_finalizing = TRUE;
  }
  
  static void gc_finalized (MonoProfiler *prof)
  {
  	DebuggerTlsData *tls;
  
  	if (is_debugger_thread ())
  		return;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  	tls->gc_finalizing = FALSE;
  }
  
  
  static char*
  strdup_tolower (char *s)
  {
  	char *s2, *p;
  
  	s2 = g_strdup (s);
  	for (p = s2; *p; ++p)
  		*p = tolower (*p);
  	return s2;
  }
  
  /*
   * Same as g_path_get_basename () but handles windows paths as well,
   * which can occur in .mdb files created by pdb2mdb.
   */
  static char*
  dbg_path_get_basename (const char *filename)
  {
  	char *r;
  
  	if (!filename || strchr (filename, '/') || !strchr (filename, '\\'))
  		return g_path_get_basename (filename);
  
  	/* From gpath.c */
  
  	/* No separator -> filename */
  	r = (char*)strrchr (filename, '\\');
  	if (r == NULL)
  		return g_strdup (filename);
  
  	/* Trailing slash, remove component */
  	if (r [1] == 0){
  		char *copy = g_strdup (filename);
  		copy [r-filename] = 0;
  		r = strrchr (copy, '\\');
  
  		if (r == NULL){
  			g_free (copy);
  			return g_strdup ("/");
  		}
  		r = g_strdup (&r[1]);
  		g_free (copy);
  		return r;
  	}
  
  	return g_strdup (&r[1]);
  }
  
  static GENERATE_TRY_GET_CLASS_WITH_CACHE(hidden_klass, "System.Diagnostics", "DebuggerHiddenAttribute")
  static GENERATE_TRY_GET_CLASS_WITH_CACHE(step_through_klass, "System.Diagnostics", "DebuggerStepThroughAttribute")
  static GENERATE_TRY_GET_CLASS_WITH_CACHE(non_user_klass, "System.Diagnostics", "DebuggerNonUserCodeAttribute")
  
  static void
  init_jit_info_dbg_attrs (MonoJitInfo *ji)
  {
  	ERROR_DECL (error);
  	MonoCustomAttrInfo *ainfo;
  
  	if (ji->dbg_attrs_inited)
  		return;
  
  	// NOTE: The following Debugger attributes may not exist if they are trimmed away by the ILLinker
  	MonoClass *hidden_klass = mono_class_try_get_hidden_klass_class ();
  	MonoClass *step_through_klass = mono_class_try_get_step_through_klass_class ();
  	MonoClass *non_user_klass = mono_class_try_get_non_user_klass_class ();
  
  	ainfo = mono_custom_attrs_from_method_checked (jinfo_get_method (ji), error);
  	mono_error_cleanup (error); /* FIXME don't swallow the error? */
  	if (ainfo) {
  		if (hidden_klass && mono_custom_attrs_has_attr (ainfo, hidden_klass))
  			ji->dbg_hidden = TRUE;
  		if (step_through_klass && mono_custom_attrs_has_attr (ainfo, step_through_klass))
  			ji->dbg_step_through = TRUE;
  		if (non_user_klass && mono_custom_attrs_has_attr (ainfo, non_user_klass))
  			ji->dbg_non_user_code = TRUE;
  		mono_custom_attrs_free (ainfo);
  	}
  
  	ainfo = mono_custom_attrs_from_class_checked (jinfo_get_method (ji)->klass, error);
  	mono_error_cleanup (error); /* FIXME don't swallow the error? */
  	if (ainfo) {
  		if (step_through_klass && mono_custom_attrs_has_attr (ainfo, step_through_klass))
  			ji->dbg_step_through = TRUE;
  		if (non_user_klass && mono_custom_attrs_has_attr (ainfo, non_user_klass))
  			ji->dbg_non_user_code = TRUE;
  		mono_custom_attrs_free (ainfo);
  	}
  
  	mono_memory_barrier ();
  	ji->dbg_attrs_inited = TRUE;
  }
  
  /*
   * EVENT HANDLING
   */
  
  /*
   * create_event_list:
   *
   *   Return a list of event request ids matching EVENT, starting from REQS, which
   * can be NULL to include all event requests. Set SUSPEND_POLICY to the suspend
   * policy.
   * We return request ids, instead of requests, to simplify threading, since 
   * requests could be deleted anytime when the loader lock is not held.
   * LOCKING: Assumes the loader lock is held.
   */
  static GSList*
  create_event_list (EventKind event, GPtrArray *reqs, MonoJitInfo *ji, EventInfo *ei, int *suspend_policy)
  {
  	int i, j;
  	GSList *events = NULL;
  
  	*suspend_policy = SUSPEND_POLICY_NONE;
  
  	if (!reqs)
  		reqs = event_requests;
  
  	if (!reqs)
  		return NULL;
  	gboolean has_everything_else = FALSE;
  	gboolean is_new_filtered_exception = FALSE;
  	gboolean filteredException = TRUE;
  	gint filtered_suspend_policy = 0;
  	gint filtered_req_id = 0;
  	gint everything_else_suspend_policy = 0;
  	gint everything_else_req_id = 0;
  	gboolean is_already_filtered = FALSE;
  	for (i = 0; i < reqs->len; ++i) {
  		EventRequest *req = (EventRequest *)g_ptr_array_index (reqs, i);
  		if (req->event_kind == event) {
  			gboolean filtered = FALSE;
  
  			/* Apply filters */
  			for (j = 0; j < req->nmodifiers; ++j) {
  				Modifier *mod = &req->modifiers [j];
  
  				if (mod->kind == MOD_KIND_COUNT) {
  					filtered = TRUE;
  					if (mod->data.count > 0) {
  						if (mod->data.count > 0) {
  							mod->data.count --;
  							if (mod->data.count == 0)
  								filtered = FALSE;
  						}
  					}
  				} else if (mod->kind == MOD_KIND_THREAD_ONLY) {
  					if (mod->data.thread != mono_thread_internal_current ())
  						filtered = TRUE;
  				} else if (mod->kind == MOD_KIND_EXCEPTION_ONLY && !mod->not_filtered_feature && ei) {
  					if (mod->data.exc_class && mod->subclasses && !mono_class_is_assignable_from_internal (mod->data.exc_class, ei->exc->vtable->klass))
  						filtered = TRUE;
  					if (mod->data.exc_class && !mod->subclasses && mod->data.exc_class != ei->exc->vtable->klass)
  						filtered = TRUE;
  					if (ei->caught && !mod->caught)
  						filtered = TRUE;
  					if (!ei->caught && !mod->uncaught)
  						filtered = TRUE;
  				} else if (mod->kind == MOD_KIND_EXCEPTION_ONLY && mod->not_filtered_feature && ei) {
  					is_new_filtered_exception = TRUE;
  					if ((mod->data.exc_class && mod->subclasses && mono_class_is_assignable_from_internal (mod->data.exc_class, ei->exc->vtable->klass)) ||
  					    (mod->data.exc_class && !mod->subclasses && mod->data.exc_class != ei->exc->vtable->klass)) {
  						is_already_filtered = TRUE;
  						if ((ei->caught && mod->caught) || (!ei->caught && mod->uncaught)) {
  							filteredException = FALSE; 
  							filtered_suspend_policy = req->suspend_policy;
  							filtered_req_id = req->id;
  						}
  					}
  					if (!mod->data.exc_class && mod->everything_else) {
  						if ((ei->caught && mod->caught) || (!ei->caught && mod->uncaught)) {
  							has_everything_else = TRUE;
  							everything_else_req_id = req->id;
  							everything_else_suspend_policy = req->suspend_policy;
  						}
  					}
  					if (!mod->data.exc_class && !mod->everything_else) {
  						if ((ei->caught && mod->caught) || (!ei->caught && mod->uncaught)) {
  							filteredException = FALSE; 
  							filtered_suspend_policy = req->suspend_policy;
  							filtered_req_id = req->id;
  						}
  					}
  				} else if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && ji) {
  					int k;
  					gboolean found = FALSE;
  					MonoAssembly **assemblies = mod->data.assemblies;
  
  					if (assemblies) {
  						for (k = 0; assemblies [k]; ++k)
  							if (assemblies [k] == m_class_get_image (jinfo_get_method (ji)->klass)->assembly)
  								found = TRUE;
  					}
  					if (!found)
  						filtered = TRUE;
  				} else if (mod->kind == MOD_KIND_SOURCE_FILE_ONLY && ei && ei->klass) {
  					gpointer iter = NULL;
  					MonoMethod *method;
  					MonoDebugSourceInfo *sinfo;
  					char *s;
  					gboolean found = FALSE;
  					int i;
  					GPtrArray *source_file_list;
  
  					while ((method = mono_class_get_methods (ei->klass, &iter))) {
  						MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
  
  						if (minfo) {
  							mono_debug_get_seq_points (minfo, NULL, &source_file_list, NULL, NULL, NULL);
  							for (i = 0; i < source_file_list->len; ++i) {
  								sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
  								/*
  								 * Do a case-insesitive match by converting the file name to
  								 * lowercase.
  								 */
  								s = strdup_tolower (sinfo->source_file);
  								if (g_hash_table_lookup (mod->data.source_files, s))
  									found = TRUE;
  								else {
  									char *s2 = dbg_path_get_basename (sinfo->source_file);
  									char *s3 = strdup_tolower (s2);
  
  									if (g_hash_table_lookup (mod->data.source_files, s3))
  										found = TRUE;
  									g_free (s2);
  									g_free (s3);
  								}
  								g_free (s);
  							}
  							g_ptr_array_free (source_file_list, TRUE);
  						}
  					}
  					if (!found)
  						filtered = TRUE;
  				} else if (mod->kind == MOD_KIND_TYPE_NAME_ONLY && ei && ei->klass) {
  					char *s;
  
  					s = mono_type_full_name (m_class_get_byval_arg (ei->klass));
  					if (!g_hash_table_lookup (mod->data.type_names, s))
  						filtered = TRUE;
  					g_free (s);
  				} else if (mod->kind == MOD_KIND_STEP) {
  					if ((mod->data.filter & STEP_FILTER_STATIC_CTOR) && ji &&
  						(jinfo_get_method (ji)->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
  						!strcmp (jinfo_get_method (ji)->name, ".cctor") &&
  						(jinfo_get_method (ji) != ((SingleStepReq*)req->info)->start_method))
  						filtered = TRUE;
  					if ((mod->data.filter & STEP_FILTER_DEBUGGER_HIDDEN) && ji) {
  						init_jit_info_dbg_attrs (ji);
  						if (ji->dbg_hidden)
  							filtered = TRUE;
  					}
  					if ((mod->data.filter & STEP_FILTER_DEBUGGER_STEP_THROUGH) && ji) {
  						init_jit_info_dbg_attrs (ji);
  						if (ji->dbg_step_through)
  							filtered = TRUE;
  					}
  					if ((mod->data.filter & STEP_FILTER_DEBUGGER_NON_USER_CODE) && ji) {
  						init_jit_info_dbg_attrs (ji);
  						if (ji->dbg_non_user_code)
  							filtered = TRUE;
  					}
  				}
  			}
  
  			if (!filtered && !is_new_filtered_exception) {
  				*suspend_policy = MAX (*suspend_policy, req->suspend_policy);
  				events = g_slist_append (events, GINT_TO_POINTER (req->id));
  			}
  		}
  	}
  
  	if (has_everything_else && !is_already_filtered) {
  		filteredException = FALSE; 
  		filtered_suspend_policy = everything_else_suspend_policy;
  		filtered_req_id = everything_else_req_id;
  	}
  
  	if (!filteredException) {
  		*suspend_policy = MAX (*suspend_policy, filtered_suspend_policy);
  		events = g_slist_append (events, GINT_TO_POINTER (filtered_req_id));
  	}
  
  	/* Send a VM START/DEATH event by default */
  	if (event == EVENT_KIND_VM_START)
  		events = g_slist_append (events, GINT_TO_POINTER (0));
  	if (event == EVENT_KIND_VM_DEATH)
  		events = g_slist_append (events, GINT_TO_POINTER (0));
  
  	return events;
  }
  
  static G_GNUC_UNUSED const char*
  event_to_string (EventKind event)
  {
  	switch (event) {
  	case EVENT_KIND_VM_START: return "VM_START";
  	case EVENT_KIND_VM_DEATH: return "VM_DEATH";
  	case EVENT_KIND_THREAD_START: return "THREAD_START";
  	case EVENT_KIND_THREAD_DEATH: return "THREAD_DEATH";
  	case EVENT_KIND_APPDOMAIN_CREATE: return "APPDOMAIN_CREATE";
  	case EVENT_KIND_APPDOMAIN_UNLOAD: return "APPDOMAIN_UNLOAD";
  	case EVENT_KIND_METHOD_ENTRY: return "METHOD_ENTRY";
  	case EVENT_KIND_METHOD_EXIT: return "METHOD_EXIT";
  	case EVENT_KIND_ASSEMBLY_LOAD: return "ASSEMBLY_LOAD";
  	case EVENT_KIND_ASSEMBLY_UNLOAD: return "ASSEMBLY_UNLOAD";
  	case EVENT_KIND_BREAKPOINT: return "BREAKPOINT";
  	case EVENT_KIND_STEP: return "STEP";
  	case EVENT_KIND_TYPE_LOAD: return "TYPE_LOAD";
  	case EVENT_KIND_EXCEPTION: return "EXCEPTION";
  	case EVENT_KIND_KEEPALIVE: return "KEEPALIVE";
  	case EVENT_KIND_USER_BREAK: return "USER_BREAK";
  	case EVENT_KIND_USER_LOG: return "USER_LOG";
  	case EVENT_KIND_CRASH: return "CRASH";
  	default:
  		g_assert_not_reached ();
  		return "";
  	}
  }
  
  /*
   * process_event:
   *
   *   Send an event to the client, suspending the vm if needed.
   * LOCKING: Since this can suspend the calling thread, no locks should be held
   * by the caller.
   * The EVENTS list is freed by this function.
   */
  static void
  process_event (EventKind event, gpointer arg, gint32 il_offset, MonoContext *ctx, GSList *events, int suspend_policy)
  {
  	Buffer buf;
  	GSList *l;
  	MonoDomain *domain = mono_domain_get ();
  	MonoThread *thread = NULL;
  	MonoObject *keepalive_obj = NULL;
  	gboolean send_success = FALSE;
  	static int ecount;
  	int nevents;
  
  	if (!inited) {
  		DEBUG_PRINTF (2, "Debugger agent not initialized yet: dropping %s\n", event_to_string (event));
  		return;
  	}
  
  	if (!vm_start_event_sent && event != EVENT_KIND_VM_START) {
  		// FIXME: We miss those events
  		DEBUG_PRINTF (2, "VM start event not sent yet: dropping %s\n", event_to_string (event));
  		return;
  	}
  
  	if (vm_death_event_sent) {
  		DEBUG_PRINTF (2, "VM death event has been sent: dropping %s\n", event_to_string (event));
  		return;
  	}
  
  	if (mono_runtime_is_shutting_down () && event != EVENT_KIND_VM_DEATH) {
  		DEBUG_PRINTF (2, "Mono runtime is shutting down: dropping %s\n", event_to_string (event));
  		return;
  	}
  
  	if (disconnected) {
  		DEBUG_PRINTF (2, "Debugger client is not connected: dropping %s\n", event_to_string (event));
  		return;
  	}
  
  	if (event == EVENT_KIND_KEEPALIVE)
  		suspend_policy = SUSPEND_POLICY_NONE;
  	else {
  		if (events == NULL)
  			return;
  
  		if (agent_config.defer) {
  			if (is_debugger_thread ()) {
  				/* Don't suspend on events from the debugger thread */
  				suspend_policy = SUSPEND_POLICY_NONE;
  			}
  		} else {
  			if (is_debugger_thread () && event != EVENT_KIND_VM_DEATH)
  				// FIXME: Send these with a NULL thread, don't suspend the current thread
  				return;
  		}
  	}
  	
  	if (event == EVENT_KIND_VM_START) 
  		suspend_policy = agent_config.suspend ? SUSPEND_POLICY_ALL : SUSPEND_POLICY_NONE;	
  	
  	nevents = g_slist_length (events);
  	buffer_init (&buf, 128);
  	buffer_add_byte (&buf, suspend_policy);
  	buffer_add_int (&buf, nevents);
  
  	for (l = events; l; l = l->next) {
  		buffer_add_byte (&buf, event); // event kind
  		buffer_add_int (&buf, GPOINTER_TO_INT (l->data)); // request id
  
  		ecount ++;
  
  		if (event == EVENT_KIND_VM_DEATH) {
  			thread = NULL;
  		} else {
  			if (!thread)
  				thread = is_debugger_thread () ? mono_thread_get_main () : mono_thread_current ();
  
  			if (event == EVENT_KIND_VM_START && arg != NULL)
  				thread = (MonoThread *)arg;
  		}
  
  		buffer_add_objid (&buf, (MonoObject*)thread); // thread
  
  		switch (event) {
  		case EVENT_KIND_THREAD_START:
  		case EVENT_KIND_THREAD_DEATH:
  			break;
  		case EVENT_KIND_APPDOMAIN_CREATE:
  		case EVENT_KIND_APPDOMAIN_UNLOAD:
  			buffer_add_domainid (&buf, (MonoDomain *)arg);
  			break;
  		case EVENT_KIND_METHOD_ENTRY:
  		case EVENT_KIND_METHOD_EXIT:
  			buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
  			break;
  		case EVENT_KIND_ASSEMBLY_LOAD:
  			buffer_add_assemblyid (&buf, domain, (MonoAssembly *)arg);
  			break;
  		case EVENT_KIND_ASSEMBLY_UNLOAD: {
  			DebuggerTlsData *tls;
  
  			/* The domain the assembly belonged to is not equal to the current domain */
  			tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  			g_assert (tls);
  			g_assert (tls->domain_unloading);
  
  			buffer_add_assemblyid (&buf, tls->domain_unloading, (MonoAssembly *)arg);
  			break;
  		}
  		case EVENT_KIND_TYPE_LOAD:
  			buffer_add_typeid (&buf, domain, (MonoClass *)arg);
  			break;
  		case EVENT_KIND_BREAKPOINT:
  		case EVENT_KIND_STEP: {
  			DebuggerTlsData *tls;
  			tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  			g_assert (tls);
  			mono_stopwatch_stop (&tls->step_time);
  			MonoMethod *method = (MonoMethod *)arg;
  
  			buffer_add_methodid (&buf, domain, method);
  			buffer_add_long (&buf, il_offset);
  			break;
  		}
  		case EVENT_KIND_VM_START:
  			buffer_add_domainid (&buf, mono_get_root_domain ());
  			break;
  		case EVENT_KIND_VM_DEATH:
  			if (CHECK_PROTOCOL_VERSION (2, 27))
  				buffer_add_int (&buf, mono_environment_exitcode_get ());
  			break;
  		case EVENT_KIND_CRASH: {
  			EventInfo *ei = (EventInfo *)arg;
  			buffer_add_long (&buf, ei->hashes->offset_free_hash);
  			buffer_add_string (&buf, ei->dump);
  			break;
  		}
  		case EVENT_KIND_EXCEPTION: {
  			EventInfo *ei = (EventInfo *)arg;
  			buffer_add_objid (&buf, ei->exc);
  			/*
  			 * We are not yet suspending, so get_objref () will not keep this object alive. So we need to do it
  			 * later after the suspension. (#12494).
  			 */
  			keepalive_obj = ei->exc;
  			break;
  		}
  		case EVENT_KIND_USER_BREAK: {
  			DebuggerTlsData *tls;
  			tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  			g_assert (tls);
  			// We are already processing a breakpoint event
  			if (tls->disable_breakpoints)
  				return;
  			mono_stopwatch_stop (&tls->step_time);
  			break;
  		}
  		case EVENT_KIND_USER_LOG: {
  			EventInfo *ei = (EventInfo *)arg;
  			buffer_add_int (&buf, ei->level);
  			buffer_add_string (&buf, ei->category ? ei->category : "");
  			buffer_add_string (&buf, ei->message ? ei->message : "");
  			break;
  		}
  		case EVENT_KIND_KEEPALIVE:
  			suspend_policy = SUSPEND_POLICY_NONE;
  			break;
  		default:
  			g_assert_not_reached ();
  		}
  	}
  
  	if (event == EVENT_KIND_VM_START) {
  		if (!agent_config.defer) {
  			ERROR_DECL (error);
  			start_debugger_thread (error);
  			mono_error_assert_ok (error);
  		}
  	}
     
  	if (event == EVENT_KIND_VM_DEATH) {
  		vm_death_event_sent = TRUE;
  		suspend_policy = SUSPEND_POLICY_NONE;
  	}
  
  	if (mono_runtime_is_shutting_down ())
  		suspend_policy = SUSPEND_POLICY_NONE;
  
  	if (suspend_policy != SUSPEND_POLICY_NONE) {
  		/* 
  		 * Save the thread context and start suspending before sending the packet,
  		 * since we could be receiving the resume request before send_packet ()
  		 * returns.
  		 */
  		save_thread_context (ctx);
  		DebuggerTlsData *tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls,  mono_thread_internal_current ());
  		tls->suspend_count++;
  		suspend_vm ();
  
  		if (keepalive_obj)
  			/* This will keep this object alive */
  			get_objref (keepalive_obj);
  	}
  
  	send_success = send_packet (CMD_SET_EVENT, CMD_COMPOSITE, &buf);
  
  	if (send_success) {
  		DebuggerTlsData *tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  		mono_debugger_log_event (tls, event_to_string (event), buf.buf, buffer_len (&buf));
  	}
  
  	buffer_free (&buf);
  
  	g_slist_free (events);
  	events = NULL;
  
  	if (!send_success) {
  		DEBUG_PRINTF (2, "Sending command %s failed.\n", event_to_string (event));
  		return;
  	}
  	
  	if (event == EVENT_KIND_VM_START) {
  		vm_start_event_sent = TRUE;
  	}
  
  	DEBUG_PRINTF (1, "[%p] Sent %d events %s(%d), suspend=%d.\n", (gpointer) (gsize) mono_native_thread_id_get (), nevents, event_to_string (event), ecount, suspend_policy);
  
  	switch (suspend_policy) {
  	case SUSPEND_POLICY_NONE:
  		break;
  	case SUSPEND_POLICY_ALL:
  		suspend_current ();
  		break;
  	case SUSPEND_POLICY_EVENT_THREAD:
  		NOT_IMPLEMENTED;
  		break;
  	default:
  		g_assert_not_reached ();
  	}
  }
  
  static void
  process_profiler_event (EventKind event, gpointer arg)
  {
  	int suspend_policy;
  	GSList *events;
  	EventInfo ei, *ei_arg = NULL;
  
  	if (event == EVENT_KIND_TYPE_LOAD) {
  		ei.klass = (MonoClass *)arg;
  		ei_arg = &ei;
  	}
  
  	mono_loader_lock ();
  	events = create_event_list (event, NULL, NULL, ei_arg, &suspend_policy);
  	mono_loader_unlock ();
  
  	process_event (event, arg, 0, NULL, events, suspend_policy);
  }
  
  static void
  runtime_initialized (MonoProfiler *prof)
  {
  	process_profiler_event (EVENT_KIND_VM_START, mono_thread_current ());
  	if (agent_config.defer) {
  		ERROR_DECL (error);
  		start_debugger_thread (error);
  		mono_error_assert_ok (error);
  	}
  }
  
  static void
  runtime_shutdown (MonoProfiler *prof)
  {
  	process_profiler_event (EVENT_KIND_VM_DEATH, NULL);
  
  	mono_debugger_agent_cleanup ();
  }
  
  static void
  thread_startup (MonoProfiler *prof, uintptr_t tid)
  {
  	MonoInternalThread *thread = mono_thread_internal_current ();
  	MonoInternalThread *old_thread;
  	DebuggerTlsData *tls;
  
  	if (is_debugger_thread ())
  		return;
  
  	g_assert (mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (tid), MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid)));
  
  	mono_loader_lock ();
  	old_thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
  	mono_loader_unlock ();
  	if (old_thread) {
  		if (thread == old_thread) {
  			/* 
  			 * For some reason, thread_startup () might be called for the same thread
  			 * multiple times (attach ?).
  			 */
  			DEBUG_PRINTF (1, "[%p] thread_start () called multiple times for %p, ignored.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
  			return;
  		} else {
  			/*
  			 * thread_end () might not be called for some threads, and the tid could
  			 * get reused.
  			 */
  			DEBUG_PRINTF (1, "[%p] Removing stale data for tid %p.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
  			mono_loader_lock ();
  			mono_g_hash_table_remove (thread_to_tls, old_thread);
  			mono_g_hash_table_remove (tid_to_thread, GUINT_TO_POINTER (tid));
  			mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
  			mono_loader_unlock ();
  		}
  	}
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (!tls);
  	// FIXME: Free this somewhere
  	tls = g_new0 (DebuggerTlsData, 1);
  	MONO_GC_REGISTER_ROOT_SINGLE (tls->thread, MONO_ROOT_SOURCE_DEBUGGER, NULL, "Debugger Thread Reference");
  	tls->thread = thread;
  	// Do so we have thread id even after termination
  	tls->thread_id = (intptr_t) thread->tid;
  	mono_native_tls_set_value (debugger_tls_id, tls);
  
  	DEBUG_PRINTF (1, "[%p] Thread started, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
  
  	mono_loader_lock ();
  	mono_g_hash_table_insert_internal (thread_to_tls, thread, tls);
  	mono_g_hash_table_insert_internal (tid_to_thread, (gpointer)tid, thread);
  	mono_g_hash_table_insert_internal (tid_to_thread_obj, GUINT_TO_POINTER (tid), mono_thread_current ());
  	mono_loader_unlock ();
  
  	process_profiler_event (EVENT_KIND_THREAD_START, thread);
  
  	/* 
  	 * suspend_vm () could have missed this thread, so wait for a resume.
  	 */
  	
  	suspend_current ();
  }
  
  static void
  thread_end (MonoProfiler *prof, uintptr_t tid)
  {
  	MonoInternalThread *thread;
  	DebuggerTlsData *tls = NULL;
  
  	mono_loader_lock ();
  	thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
  	if (thread) {
  		mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
  		tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  		if (tls) {
  			/* FIXME: Maybe we need to free this instead, but some code can't handle that */
  			tls->terminated = TRUE;
  			/* Can't remove from tid_to_thread, as that would defeat the check in thread_start () */
  			MONO_GC_UNREGISTER_ROOT (tls->thread);
  			tls->thread = NULL;
  		}
  	}
  	mono_loader_unlock ();
  
  	/* We might be called for threads started before we registered the start callback */
  	if (thread) {
  		DEBUG_PRINTF (1, "[%p] Thread terminated, obj=%p, tls=%p (domain=%p).\n", (gpointer)tid, thread, tls, (gpointer)mono_domain_get ());
  
  		if (mono_thread_internal_is_current (thread) &&
  		    (!mono_native_tls_get_value (debugger_tls_id) ||
  		     !mono_domain_get ())
  		) {
  			/*
  			 * This can happen on darwin and android since we
  			 * deregister threads using pthread dtors.
  			 * process_profiler_event () and the code it calls
  			 * cannot handle a null TLS value.
  			 */
  			return;
  		}
  
  		process_profiler_event (EVENT_KIND_THREAD_DEATH, thread);
  	}
  }
  
  static void
  appdomain_load (MonoProfiler *prof, MonoDomain *domain)
  {
  	mono_de_domain_add (domain);
  
  	process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, domain);
  }
  
  static void
  appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain)
  {
  	DebuggerTlsData *tls;
  
  	/* This might be called during shutdown on the debugger thread from the CMD_VM_EXIT code */
  	if (is_debugger_thread ())
  		return;
  
  	/*
  	 * Remember the currently unloading appdomain as it is needed to generate
  	 * proper ids for unloading assemblies.
  	 */
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  	tls->domain_unloading = domain;
  }
  
  static void
  appdomain_unload (MonoProfiler *prof, MonoDomain *domain)
  {
  	DebuggerTlsData *tls;
  
  	if (is_debugger_thread ())
  		return;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  	tls->domain_unloading = NULL;
  
  	mono_de_clear_breakpoints_for_domain (domain);
  	
  	mono_loader_lock ();
  	/* Invalidate each thread's frame stack */
  	mono_g_hash_table_foreach (thread_to_tls, invalidate_each_thread, NULL);
  	mono_loader_unlock ();
  	
  	process_profiler_event (EVENT_KIND_APPDOMAIN_UNLOAD, domain);
  }
  
  /*
   * invalidate_each_thread:
   *
   *   A GHFunc to invalidate frames.
   *   value must be a DebuggerTlsData*
   */
  static void
  invalidate_each_thread (gpointer key, gpointer value, gpointer user_data)
  {
  	invalidate_frames ((DebuggerTlsData *)value);
  }
  
  static void
  assembly_load (MonoProfiler *prof, MonoAssembly *assembly)
  {
  	/* Sent later in jit_end () */
  	dbg_lock ();
  	g_ptr_array_add (pending_assembly_loads, assembly);
  	dbg_unlock ();
  }
  
  static void
  assembly_unload (MonoProfiler *prof, MonoAssembly *assembly)
  {
  	if (is_debugger_thread ())
  		return;
  
  	process_profiler_event (EVENT_KIND_ASSEMBLY_UNLOAD, assembly);
  
  	clear_event_requests_for_assembly (assembly);
  	clear_types_for_assembly (assembly);
  }
  
  static void
  send_type_load (MonoClass *klass)
  {
  	gboolean type_load = FALSE;
  	MonoDomain *domain = mono_domain_get ();
  	AgentDomainInfo *info = NULL;
  
  	info = get_agent_domain_info (domain);
  
  	mono_loader_lock ();
  
  	if (!g_hash_table_lookup (info->loaded_classes, klass)) {
  		type_load = TRUE;
  		g_hash_table_insert (info->loaded_classes, klass, klass);
  	}
  
  	mono_loader_unlock ();
  
  	if (type_load)
  		emit_type_load (klass, klass, NULL);
  }
  
  /*
   * Emit load events for all types currently loaded in the domain.
   * Takes the loader and domain locks.
   * user_data is unused.
   */
  static void
  send_types_for_domain (MonoDomain *domain, void *user_data)
  {
  	MonoDomain* old_domain;
  	AgentDomainInfo *info = NULL;
  
  	if (mono_domain_is_unloading (domain))
  		return;
  
  	info = get_agent_domain_info (domain);
  	g_assert (info);
  
  	old_domain = mono_domain_get ();
  
  	mono_domain_set_fast (domain, TRUE);
  	
  	mono_loader_lock ();
  	g_hash_table_foreach (info->loaded_classes, emit_type_load, NULL);
  	mono_loader_unlock ();
  
  	mono_domain_set_fast (old_domain, TRUE);
  }
  
  static void
  send_assemblies_for_domain (MonoDomain *domain, void *user_data)
  {
  	GSList *tmp;
  	MonoDomain* old_domain;
  
  	if (mono_domain_is_unloading (domain))
  		return;
  
  	old_domain = mono_domain_get ();
  
  	mono_domain_set_fast (domain, TRUE);
  
  	mono_domain_assemblies_lock (domain);
  	for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
  		MonoAssembly* ass = (MonoAssembly *)tmp->data;
  		emit_assembly_load (ass, NULL);
  	}
  	mono_domain_assemblies_unlock (domain);
  
  	mono_domain_set_fast (old_domain, TRUE);
  }
  
  static void
  jit_done (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo)
  {
  	jit_end (prof, method, jinfo);
  }
  
  static void
  jit_failed (MonoProfiler *prof, MonoMethod *method)
  {
  	jit_end (prof, method, NULL);
  }
  
  static void
  jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo)
  {
  	/*
  	 * We emit type load events when the first method of the type is JITted,
  	 * since the class load profiler callbacks might be called with the
  	 * loader lock held. They could also occur in the debugger thread.
  	 * Same for assembly load events.
  	 */
  	while (TRUE) {
  		MonoAssembly *assembly = NULL;
  
  		// FIXME: Maybe store this in TLS so the thread of the event is correct ?
  		dbg_lock ();
  		if (pending_assembly_loads->len > 0) {
  			assembly = (MonoAssembly *)g_ptr_array_index (pending_assembly_loads, 0);
  			g_ptr_array_remove_index (pending_assembly_loads, 0);
  		}
  		dbg_unlock ();
  
  		if (assembly) {
  			process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, assembly);
  		} else {
  			break;
  		}
  	}
  
  	send_type_load (method->klass);
  
  	if (jinfo)
  		mono_de_add_pending_breakpoints (method, jinfo);
  }
  
  /*
   * SINGLE STEPPING
   */
  
  static void
  event_requests_cleanup (void)
  {
  	mono_loader_lock ();
  	int i = 0;
  	while (i < event_requests->len) {
  		EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
  
  		if (req->event_kind == EVENT_KIND_BREAKPOINT) {
  			mono_de_clear_breakpoint ((MonoBreakpoint *)req->info);
  			g_ptr_array_remove_index_fast (event_requests, i);
  			g_free (req);
  		} else {
  			i ++;
  		}
  	}
  	mono_loader_unlock ();
  }
  
  /*
   * ss_calculate_framecount:
   *
   * Ensure DebuggerTlsData fields are filled out.
   */
  static void
  ss_calculate_framecount (void *the_tls, MonoContext *ctx, gboolean force_use_ctx, DbgEngineStackFrame ***frames, int *nframes)
  {
  	DebuggerTlsData *tls = (DebuggerTlsData*)the_tls;
  
  	if (force_use_ctx || !tls->context.valid)
  		mono_thread_state_init_from_monoctx (&tls->context, ctx);
  	compute_frame_info (tls->thread, tls, FALSE);
  	if (frames)
  		*frames = (DbgEngineStackFrame**)tls->frames;
  	if (nframes)
  		*nframes = tls->frame_count;
  }
  
  /*
   * ss_discard_frame_data:
   *
   * Discard frame data and invalidate any context
   */
  static void
  ss_discard_frame_context (void *the_tls)
  {
  	DebuggerTlsData *tls = (DebuggerTlsData*)the_tls;
  	tls->context.valid = FALSE;
  	tls->async_state.valid = FALSE;
  	invalidate_frames (tls);
  }
  
  static MonoContext*
  tls_get_restore_state (void *the_tls)
  {
  	DebuggerTlsData *tls = (DebuggerTlsData*)the_tls;
  
  	return &tls->restore_state.ctx;
  }
  
  static gboolean
  ensure_jit (DbgEngineStackFrame* the_frame)
  {
  	StackFrame *frame = (StackFrame*)the_frame;
  	if (!frame->jit) {
  		frame->jit = mono_debug_find_method (frame->api_method, frame->de.domain);
  		if (!frame->jit && frame->api_method->is_inflated)
  			frame->jit = mono_debug_find_method(mono_method_get_declaring_generic_method (frame->api_method), frame->de.domain);
  		if (!frame->jit) {
  			char *s;
  
  			/* This could happen for aot images with no jit debug info */
  			s = mono_method_full_name (frame->api_method, TRUE);
  			DEBUG_PRINTF(1, "[dbg] No debug information found for '%s'.\n", s);
  			g_free (s);
  			return FALSE;
  		}
  	}
  	return TRUE;
  }
  
  static gboolean
  breakpoint_matches_assembly (MonoBreakpoint *bp, MonoAssembly *assembly)
  {
  	return bp->method && m_class_get_image (bp->method->klass)->assembly == assembly;
  }
  
  static gpointer
  get_this_addr (DbgEngineStackFrame *the_frame)
  {
  	StackFrame *frame = (StackFrame *)the_frame;
  	if (frame->de.ji->is_interp)
  		return mini_get_interp_callbacks ()->frame_get_this (frame->interp_frame);
  
  	MonoDebugVarInfo *var = frame->jit->this_var;
  	if ((var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS) != MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET)
  		return NULL;
  
  	guint8 *addr = (guint8 *)mono_arch_context_get_int_reg (&frame->ctx, var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS);
  	addr += (gint32)var->offset;
  	return addr;
  }
  
  static MonoMethod*
  get_set_notification_method (MonoClass* async_builder_class)
  {
  	ERROR_DECL (error);
  	GPtrArray* array = mono_class_get_methods_by_name (async_builder_class, "SetNotificationForWaitCompletion", 0x24, 1, FALSE, error);
  	mono_error_assert_ok (error);
  	if (array->len == 0) {
  		g_ptr_array_free (array, TRUE);
  		return NULL;
  	}
  	MonoMethod* set_notification_method = (MonoMethod *)g_ptr_array_index (array, 0);
  	g_ptr_array_free (array, TRUE);
  	return set_notification_method;
  }
  
  static MonoMethod*
  get_object_id_for_debugger_method (MonoClass* async_builder_class)
  {
  	ERROR_DECL (error);
  	GPtrArray *array = mono_class_get_methods_by_name (async_builder_class, "get_ObjectIdForDebugger", 0x24, 1, FALSE, error);
  	mono_error_assert_ok (error);
  	if (array->len != 1) {
  		g_ptr_array_free (array, TRUE);
  		//if we don't find method get_ObjectIdForDebugger we try to find the property Task to continue async debug.
  		MonoProperty *prop = mono_class_get_property_from_name_internal (async_builder_class, "Task");
  		if (!prop) {
  			DEBUG_PRINTF (1, "Impossible to debug async methods.\n");
  			return NULL;
  		}
  		return prop->get;
  	}
  	MonoMethod *method = (MonoMethod *)g_ptr_array_index (array, 0);
  	g_ptr_array_free (array, TRUE);
  	return method;
  }
  
  static MonoClass *
  get_class_to_get_builder_field(DbgEngineStackFrame *frame)
  {
  	ERROR_DECL (error);
  	gpointer this_addr = get_this_addr (frame);
  	MonoClass *original_class = frame->method->klass;
  	MonoClass *ret;
  	if (!m_class_is_valuetype (original_class) && mono_class_is_open_constructed_type (m_class_get_byval_arg (original_class))) {
  		MonoObject *this_obj = *(MonoObject**)this_addr;
  		MonoGenericContext context;
  		MonoType *inflated_type;
  
  		if (!this_obj)
  			return NULL;
  			
  		context = mono_get_generic_context_from_stack_frame (frame->ji, this_obj->vtable);
  		inflated_type = mono_class_inflate_generic_type_checked (m_class_get_byval_arg (original_class), &context, error);
  		mono_error_assert_ok (error); /* FIXME don't swallow the error */
  
  		ret = mono_class_from_mono_type_internal (inflated_type);
  		mono_metadata_free_type (inflated_type);
  		return ret;
  	}
  	return original_class;
  }
  
  
  /* Return the address of the AsyncMethodBuilder struct belonging to the state machine method pointed to by FRAME */
  static gpointer
  get_async_method_builder (DbgEngineStackFrame *frame)
  {
  	MonoObject *this_obj;
  	MonoClassField *builder_field;
  	gpointer builder;
  	gpointer this_addr;
  	MonoClass* klass = frame->method->klass;
  
  	klass = get_class_to_get_builder_field(frame);
  	builder_field = mono_class_get_field_from_name_full (klass, "<>t__builder", NULL);
  	if (!builder_field)
  		return NULL;
  
  	this_addr = get_this_addr (frame);
  	if (!this_addr)
  		return NULL;
  
  	if (m_class_is_valuetype (klass)) {
  		builder = mono_vtype_get_field_addr (*(guint8**)this_addr, builder_field);
  	} else {
  		this_obj = *(MonoObject**)this_addr;
  		builder = (char*)this_obj + builder_field->offset;
  	}
  
  	return builder;
  }
  
  //This ID is used to figure out if breakpoint hit on resumeOffset belongs to us or not
  //since thread probably changed...
  static int
  get_this_async_id (DbgEngineStackFrame *frame)
  {
  	MonoClassField *builder_field;
  	gpointer builder;
  	MonoMethod *method;
  	MonoObject *ex;
  	ERROR_DECL (error);
  	MonoObject *obj;
  	gboolean old_disable_breakpoints = FALSE;
  	DebuggerTlsData *tls;
  
  	/*
  	 * FRAME points to a method in a state machine class/struct.
  	 * Call the ObjectIdForDebugger method of the associated method builder type.
  	 */
  	builder = get_async_method_builder (frame);
  	if (!builder)
  		return 0;
  
  	builder_field = mono_class_get_field_from_name_full (get_class_to_get_builder_field(frame), "<>t__builder", NULL);
  	if (!builder_field)
  		return 0;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	if (tls) {
  		old_disable_breakpoints = tls->disable_breakpoints;
  		tls->disable_breakpoints = TRUE;
  	}
  
  	method = get_object_id_for_debugger_method (mono_class_from_mono_type_internal (builder_field->type));
  	if (!method) {
  		if (tls)
  			tls->disable_breakpoints = old_disable_breakpoints;
  		return 0;
  	}
  	obj = mono_runtime_try_invoke (method, builder, NULL, &ex, error);
  	mono_error_assert_ok (error);
  
  	if (tls)
  		tls->disable_breakpoints = old_disable_breakpoints;
  
  	return get_objid (obj);
  }
  
  // Returns true if TaskBuilder has NotifyDebuggerOfWaitCompletion method
  // false if not(AsyncVoidBuilder)
  static gboolean
  set_set_notification_for_wait_completion_flag (DbgEngineStackFrame *frame)
  {
  	MonoClassField *builder_field = mono_class_get_field_from_name_full (get_class_to_get_builder_field(frame), "<>t__builder", NULL);
  	if (!builder_field)
  		return FALSE;
  	gpointer builder = get_async_method_builder (frame);
  	if (!builder)
  		return FALSE;
  
  	MonoMethod* method = get_set_notification_method (mono_class_from_mono_type_internal (builder_field->type));
  	if (method == NULL)
  		return FALSE;
  	gboolean arg = TRUE;
  	ERROR_DECL (error);
  	void *args [ ] = { &arg };
  	mono_runtime_invoke_checked (method, builder, args, error);
  	mono_error_assert_ok (error);
  	return TRUE;
  }
  
  static MonoMethod* notify_debugger_of_wait_completion_method_cache;
  
  static MonoMethod*
  get_notify_debugger_of_wait_completion_method (void)
  {
  	if (notify_debugger_of_wait_completion_method_cache != NULL)
  		return notify_debugger_of_wait_completion_method_cache;
  	ERROR_DECL (error);
  	MonoClass* task_class = mono_class_load_from_name (mono_defaults.corlib, "System.Threading.Tasks", "Task");
  	GPtrArray* array = mono_class_get_methods_by_name (task_class, "NotifyDebuggerOfWaitCompletion", 0x24, 1, FALSE, error);
  	mono_error_assert_ok (error);
  	g_assert (array->len == 1);
  	notify_debugger_of_wait_completion_method_cache = (MonoMethod *)g_ptr_array_index (array, 0);
  	g_ptr_array_free (array, TRUE);
  	return notify_debugger_of_wait_completion_method_cache;
  }
  
  static gboolean
  begin_breakpoint_processing (void *the_tls, MonoContext *ctx, MonoJitInfo *ji, gboolean from_signal)
  {
  	DebuggerTlsData *tls = (DebuggerTlsData*)the_tls;
  
  	/*
  	 * Skip the instruction causing the breakpoint signal.
  	 */
  	if (from_signal)
  		mono_arch_skip_breakpoint (ctx, ji);
  
  	if (tls->disable_breakpoints)
  		return FALSE;
  	return TRUE;
  }
  
  typedef struct {
  	GSList *bp_events, *ss_events, *enter_leave_events;
  	EventKind kind;
  	int suspend_policy;
  } BreakPointEvents;
  
  static void*
  create_breakpoint_events (GPtrArray *ss_reqs, GPtrArray *bp_reqs, MonoJitInfo *ji, EventKind kind)
  {
  	int suspend_policy = 0;
  	BreakPointEvents *evts = g_new0 (BreakPointEvents, 1);
  	if (ss_reqs && ss_reqs->len > 0)
  		evts->ss_events = create_event_list (EVENT_KIND_STEP, ss_reqs, ji, NULL, &suspend_policy);
  	else if (bp_reqs && bp_reqs->len > 0)
  		evts->bp_events = create_event_list (EVENT_KIND_BREAKPOINT, bp_reqs, ji, NULL, &suspend_policy);
  	else if (kind != EVENT_KIND_BREAKPOINT)
  		evts->enter_leave_events = create_event_list (kind, NULL, ji, NULL, &suspend_policy);
  
  	evts->kind = kind;
  	evts->suspend_policy = suspend_policy;
  	return evts;
  }
  
  static void
  process_breakpoint_events (void *_evts, MonoMethod *method, MonoContext *ctx, int il_offset)
  {
  	BreakPointEvents *evts = (BreakPointEvents*)_evts;
  	/*
  	 * FIXME: The first event will suspend, so the second will only be sent after the
  	 * resume.
  	 */
  	if (evts->ss_events)
  		process_event (EVENT_KIND_STEP, method, il_offset, ctx, evts->ss_events, evts->suspend_policy);
  	if (evts->bp_events)
  		process_event (evts->kind, method, il_offset, ctx, evts->bp_events, evts->suspend_policy);
  	if (evts->enter_leave_events)
  		process_event (evts->kind, method, il_offset, ctx, evts->enter_leave_events, evts->suspend_policy);
  
  	g_free (evts);
  }
  
  /* Process a breakpoint/single step event after resuming from a signal handler */
  static void
  process_signal_event (void (*func) (void*, gboolean))
  {
  	DebuggerTlsData *tls;
  	MonoThreadUnwindState orig_restore_state;
  	MonoContext ctx;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	/* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
  	memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
  	mono_thread_state_init_from_monoctx (&tls->restore_state, &tls->handler_ctx);
  
  	func (tls, TRUE);
  
  	/* This is called when resuming from a signal handler, so it shouldn't return */
  	memcpy (&ctx, &tls->restore_state.ctx, sizeof (MonoContext));
  	memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
  	mono_restore_context (&ctx);
  	g_assert_not_reached ();
  }
  
  static void
  process_breakpoint_from_signal (void)
  {
  	process_signal_event (mono_de_process_breakpoint);
  }
  
  static void
  resume_from_signal_handler (void *sigctx, void *func)
  {
  	DebuggerTlsData *tls;
  	MonoContext ctx;
  
  	/* Save the original context in TLS */
  	// FIXME: This might not work on an altstack ?
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	if (!tls)
  		g_printerr ("Thread %p is not attached to the JIT.\n", (gpointer) (gsize) mono_native_thread_id_get ());
  	g_assert (tls);
  
  	// FIXME: MonoContext usually doesn't include the fp registers, so these are 
  	// clobbered by a single step/breakpoint event. If this turns out to be a problem,
  	// clob:c could be added to op_seq_point.
  
  	mono_sigctx_to_monoctx (sigctx, &ctx);
  	memcpy (&tls->handler_ctx, &ctx, sizeof (MonoContext));
  #ifdef MONO_ARCH_HAVE_SETUP_RESUME_FROM_SIGNAL_HANDLER_CTX
  	mono_arch_setup_resume_sighandler_ctx (&ctx, func);
  #else
  	MONO_CONTEXT_SET_IP (&ctx, func);
  #endif
  	mono_monoctx_to_sigctx (&ctx, sigctx);
  }
  
  static void
  debugger_agent_breakpoint_hit (void *sigctx)
  {
  	/*
  	 * We are called from a signal handler, and running code there causes all kinds of
  	 * problems, like the original signal is disabled, libgc can't handle altstack, etc.
  	 * So set up the signal context to return to the real breakpoint handler function.
  	 */
  	resume_from_signal_handler (sigctx, (gpointer)process_breakpoint_from_signal);
  }
  
  typedef struct {
  	gboolean found;
  	MonoContext *ctx;
  } UserBreakCbData;
  
  static gboolean
  user_break_cb (StackFrameInfo *frame, MonoContext *ctx, gpointer user_data)
  {
  	UserBreakCbData *data = (UserBreakCbData*)user_data;
  
  	if (frame->type == FRAME_TYPE_INTERP_TO_MANAGED || frame->type == FRAME_TYPE_INTERP_TO_MANAGED_WITH_CTX) {
  		data->found = TRUE;
  		return TRUE;
  	}
  	if (frame->managed) {
  		data->found = TRUE;
  		*data->ctx = *ctx;
  
  		return TRUE;
  	}
  	return FALSE;
  }
  
  /*
   * Called by System.Diagnostics.Debugger:Break ().
   */
  static void
  debugger_agent_user_break (void)
  {
  	if (agent_config.enabled) {
  		MonoContext ctx;
  		int suspend_policy;
  		GSList *events;
  		UserBreakCbData data;
  
  		memset (&data, 0, sizeof (data));
  		data.ctx = &ctx;
  
  		/* Obtain a context */
  		MONO_CONTEXT_SET_IP (&ctx, NULL);
  		mono_walk_stack_with_ctx (user_break_cb, NULL, (MonoUnwindOptions)0, &data);
  		g_assert (data.found);
  
  		mono_loader_lock ();
  		events = create_event_list (EVENT_KIND_USER_BREAK, NULL, NULL, NULL, &suspend_policy);
  		mono_loader_unlock ();
  
  		process_event (EVENT_KIND_USER_BREAK, NULL, 0, &ctx, events, suspend_policy);
  	} else if (mini_debug_options.native_debugger_break) {
  		G_BREAKPOINT ();
  	}
  }
  
  static void
  begin_single_step_processing (MonoContext *ctx, gboolean from_signal)
  {
  	if (from_signal)
  		mono_arch_skip_single_step (ctx);
  }
  
  static void
  process_single_step (void)
  {
  	process_signal_event (mono_de_process_single_step);
  }
  
  /*
   * debugger_agent_single_step_event:
   *
   *   Called from a signal handler to handle a single step event.
   */
  static void
  debugger_agent_single_step_event (void *sigctx)
  {
  	/* Resume to process_single_step through the signal context */
  
  	// FIXME: Since step out/over is implemented using step in, the step in case should
  	// be as fast as possible. Move the relevant code from mono_de_process_single_step ()
  	// here
  
  	if (is_debugger_thread ()) {
  		/* 
  		 * This could happen despite our best effors when the runtime calls 
  		 * assembly/type resolve hooks.
  		 * FIXME: Breakpoints too.
  		 */
  		MonoContext ctx;
  
  		mono_sigctx_to_monoctx (sigctx, &ctx);
  		mono_arch_skip_single_step (&ctx);
  		mono_monoctx_to_sigctx (&ctx, sigctx);
  		return;
  	}
  
  	resume_from_signal_handler (sigctx, (gpointer)process_single_step);
  }
  
  static void
  debugger_agent_single_step_from_context (MonoContext *ctx)
  {
  	DebuggerTlsData *tls;
  	MonoThreadUnwindState orig_restore_state;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	/* Fastpath during invokes, see in process_suspend () */
  	if (tls && suspend_count && suspend_count - tls->resume_count == 0)
  		return;
  
  	if (is_debugger_thread ())
  		return;
  
  	g_assert (tls);
  
  	tls->terminated = FALSE;
  
  	/* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
  	memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
  	mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
  	memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
  
  	mono_de_process_single_step (tls, FALSE);
  
  	memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
  	memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
  }
  
  static void
  debugger_agent_breakpoint_from_context (MonoContext *ctx)
  {
  	DebuggerTlsData *tls;
  	MonoThreadUnwindState orig_restore_state;
  	guint8 *orig_ip;
  
  	if (is_debugger_thread ())
  		return;
  
  	orig_ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
  	MONO_CONTEXT_SET_IP (ctx, orig_ip - 1);
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  	
  	//if a thread was suspended and doesn't have any managed stack, it was considered as terminated, 
  	//but it wasn't really terminated because it can execute managed code again, and stop in a breakpoint so here we set terminated as FALSE
  	tls->terminated = FALSE;
  
  	memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
  	mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
  	memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
  
  	mono_de_process_breakpoint (tls, FALSE);
  
  	memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
  	memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
  	if (MONO_CONTEXT_GET_IP (ctx) == orig_ip - 1)
  		MONO_CONTEXT_SET_IP (ctx, orig_ip);
  }
  static void
  ss_args_destroy (SingleStepArgs *ss_args)
  {
  	if (ss_args->frames)
  		free_frames ((StackFrame**)ss_args->frames, ss_args->nframes);
  }
  
  static int
  handle_multiple_ss_requests (void)
  {
  	if (!CHECK_PROTOCOL_VERSION (2, 57))
  		return DE_ERR_NOT_IMPLEMENTED;
  	return 1;
  }
  
  static int
  ensure_runtime_is_suspended (void)
  {
  	if (suspend_count == 0)
  		return ERR_NOT_SUSPENDED;
  
  	wait_for_suspend ();
  
  	return ERR_NONE;
  }
  
  static int
  ss_create_init_args (SingleStepReq *ss_req, SingleStepArgs *args)
  {
  	MonoSeqPointInfo *info = NULL;
  	gboolean found_sp;
  	MonoMethod *method = NULL;
  	MonoDebugMethodInfo *minfo;
  	gboolean step_to_catch = FALSE;
  	gboolean set_ip = FALSE;
  	StackFrame **frames = NULL;
  	int nframes = 0;
  
  	mono_loader_lock ();
  	DebuggerTlsData *tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, ss_req->thread);
  	mono_loader_unlock ();
  	g_assert (tls);
  	if (!tls->context.valid) {
  		DEBUG_PRINTF (1, "Received a single step request on a thread with no managed frames.\n");
  		return ERR_INVALID_ARGUMENT;
  	}
  
  	if (tls->restore_state.valid && MONO_CONTEXT_GET_IP (&tls->context.ctx) != MONO_CONTEXT_GET_IP (&tls->restore_state.ctx)) {
  		/*
  		 * Need to start single stepping from restore_state and not from the current state
  		 */
  		set_ip = TRUE;
  		frames = compute_frame_info_from (ss_req->thread, tls, &tls->restore_state, &nframes);
  	}
  
  	ss_req->start_sp = ss_req->last_sp = MONO_CONTEXT_GET_SP (&tls->context.ctx);
  
  	if (tls->has_catch_frame) {
  		StackFrameInfo frame;
  
  		/*
  		 * We are stopped at a throw site. Stepping should go to the catch site.
  		 */
  		frame = tls->catch_frame;
  		if (frame.type != FRAME_TYPE_MANAGED && frame.type != FRAME_TYPE_INTERP) {
  			DEBUG_PRINTF (1, "Current frame is not managed nor interpreter.\n");
  			return ERR_INVALID_ARGUMENT;
  		}
  
  		/*
  		 * Find the seq point corresponding to the landing site ip, which is the first seq
  		 * point after ip.
  		 */
  		found_sp = mono_find_next_seq_point_for_native_offset (frame.domain, frame.method, frame.native_offset, &info, &args->sp);
  		if (!found_sp)
  			no_seq_points_found (frame.method, frame.native_offset);
  		if (!found_sp) {
  			DEBUG_PRINTF (1, "Could not find next sequence point.\n");
  			return ERR_INVALID_ARGUMENT;
  		}
  
  		method = frame.method;
  
  		step_to_catch = TRUE;
  		/* This make sure the seq point is not skipped by process_single_step () */
  		ss_req->last_sp = NULL;
  	}
  
  	if (!step_to_catch) {
  		StackFrame *frame = NULL;
  
  		if (set_ip) {
  			if (frames && nframes)
  				frame = frames [0];
  		} else {
  			compute_frame_info (ss_req->thread, tls, FALSE);
  
  			if (tls->frame_count)
  				frame = tls->frames [0];
  		}
  
  		if (ss_req->size == STEP_SIZE_LINE) {
  			if (frame) {
  				ss_req->last_method = frame->de.method;
  				ss_req->last_line = -1;
  
  				minfo = mono_debug_lookup_method (frame->de.method);
  				if (minfo && frame->il_offset != -1) {
  					MonoDebugSourceLocation *loc = mono_debug_method_lookup_location (minfo, frame->il_offset);
  
  					if (loc) {
  						ss_req->last_line = loc->row;
  						g_free (loc);
  					}
  				}
  			}
  		}
  
  		if (frame) {
  			if (!method && frame->il_offset != -1) {
  				/* FIXME: Sort the table and use a binary search */
  				found_sp = mono_find_prev_seq_point_for_native_offset (frame->de.domain, frame->de.method, frame->de.native_offset, &info, &args->sp);
  				if (!found_sp)
  					no_seq_points_found (frame->de.method, frame->de.native_offset);
  				if (!found_sp) {
  					DEBUG_PRINTF (1, "Could not find next sequence point.\n");
  					return ERR_INVALID_ARGUMENT;
  				}
  				method = frame->de.method;
  			}
  		}
  	}
  
  	ss_req->start_method = method;
  
  	args->method = method;
  	args->ctx = set_ip ? &tls->restore_state.ctx : &tls->context.ctx;
  	args->tls = tls;
  	args->step_to_catch = step_to_catch;
  	args->info = info;
  	args->frames = (DbgEngineStackFrame**)frames;
  	args->nframes = nframes;
  
  	return ERR_NONE;
  }
  
  static void
  ss_clear_for_assembly (SingleStepReq *req, MonoAssembly *assembly)
  {
  	GSList *l;
  	gboolean found = TRUE;
  
  	while (found) {
  		found = FALSE;
  		for (l = req->bps; l; l = l->next) {
  			if (breakpoint_matches_assembly ((MonoBreakpoint *)l->data, assembly)) {
  				mono_de_clear_breakpoint ((MonoBreakpoint *)l->data);
  				req->bps = g_slist_delete_link (req->bps, l);
  				found = TRUE;
  				break;
  			}
  		}
  	}
  }
  
  /*
   * This takes a lot of locks and stuff. Do this at the end, after
   * other things have dumped us, so that getting stuck here won't
   * prevent seeing other crash information
   */
  static void
  mono_debugger_agent_send_crash (char *json_dump, MonoStackHash *hashes, int pause)
  {
  	MONO_ENTER_GC_UNSAFE;
  #ifndef DISABLE_CRASH_REPORTING
  	int suspend_policy;
  	GSList *events;
  	EventInfo ei;
  
  	if (!agent_config.enabled)
  		return;
  
  	// Don't send the event if the client doesn't expect it
  	if (!CHECK_PROTOCOL_VERSION (2, 49))
  		return;
  
  	// It doesn't make sense to wait for lldb/gdb to finish if we're not
  	// actually enabled. Therefore we do the wait here.
  	sleep (pause);
  
  	// Don't heap allocate when we can avoid it
  	EventRequest request;
  	memset (&request, 0, sizeof (request));
  	request.event_kind = EVENT_KIND_CRASH;
  
  	gpointer pdata [1];
  	pdata [0] = &request;
  	GPtrArray array;
  	memset (&array, 0, sizeof (array));
  	array.pdata = pdata;
  	array.len = 1;
  
  	mono_loader_lock ();
  	events = create_event_list (EVENT_KIND_CRASH, &array, NULL, NULL, &suspend_policy);
  	mono_loader_unlock ();
  
  	ei.dump = json_dump;
  	ei.hashes = hashes;
  
  	g_assert (events != NULL);
  
  	process_event (EVENT_KIND_CRASH, &ei, 0, NULL, events, suspend_policy);
  
  	// Don't die before it is sent.
  	sleep (4);
  #endif
  	MONO_EXIT_GC_UNSAFE;
  }
  
  /*
   * Called from metadata by the icall for System.Diagnostics.Debugger:Log ().
   */
  static void
  debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
  {
  	ERROR_DECL (error);
  	int suspend_policy;
  	GSList *events;
  	EventInfo ei;
  
  	if (!agent_config.enabled)
  		return;
  
  	memset (&ei, 0, sizeof (ei));
  
  	mono_loader_lock ();
  	events = create_event_list (EVENT_KIND_USER_LOG, NULL, NULL, NULL, &suspend_policy);
  	mono_loader_unlock ();
  
  	ei.level = level;
  	if (category) {
  		ei.category = mono_string_to_utf8_checked_internal (category, error);
  		mono_error_cleanup (error);
  		error_init (error);
  	}
  	if (message) {
  		ei.message = mono_string_to_utf8_checked_internal (message, error);
  		mono_error_cleanup  (error);
  	}
  
  	process_event (EVENT_KIND_USER_LOG, &ei, 0, NULL, events, suspend_policy);
  
  	g_free (ei.category);
  	g_free (ei.message);
  }
  
  static gboolean
  debugger_agent_debug_log_is_enabled (void)
  {
  	/* Treat this as true even if there is no event request for EVENT_KIND_USER_LOG */
  	return agent_config.enabled;
  }
  
  static void
  debugger_agent_unhandled_exception (MonoException *exc)
  {
  	int suspend_policy;
  	GSList *events;
  	EventInfo ei;
  
  	if (!inited)
  		return;
  
  	memset (&ei, 0, sizeof (ei));
  	ei.exc = (MonoObject*)exc;
  
  	mono_loader_lock ();
  	events = create_event_list (EVENT_KIND_EXCEPTION, NULL, NULL, &ei, &suspend_policy);
  	mono_loader_unlock ();
  
  	process_event (EVENT_KIND_EXCEPTION, &ei, 0, NULL, events, suspend_policy);
  }
  
  static void
  debugger_agent_handle_exception (MonoException *exc, MonoContext *throw_ctx,
  									  MonoContext *catch_ctx, StackFrameInfo *catch_frame)
  {
  	if (catch_ctx == NULL && catch_frame == NULL && mini_debug_options.suspend_on_unhandled && mono_object_class (exc) != mono_defaults.threadabortexception_class) {
  		mono_runtime_printf_err ("Unhandled exception, suspending...");
  		while (1)
  			;
  	}
  	
  	int i, j, suspend_policy;
  	GSList *events;
  	MonoJitInfo *ji, *catch_ji;
  	EventInfo ei;
  	DebuggerTlsData *tls = NULL;
  
  	if (thread_to_tls != NULL) {
  		MonoInternalThread *thread = mono_thread_internal_current ();
  
  		mono_loader_lock ();
  		tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  		mono_loader_unlock ();
  
  		if (tls && tls->abort_requested)
  			return;
  		if (tls && tls->disable_breakpoints)
  			return;
  	}
  
  	memset (&ei, 0, sizeof (ei));
  
  	/* Just-In-Time debugging */
  	if (!catch_ctx) {
  		if (agent_config.onuncaught && !inited) {
  			finish_agent_init (FALSE);
  
  			/*
  			 * Send an unsolicited EXCEPTION event with a dummy request id.
  			 */
  			events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
  			ei.exc = (MonoObject*)exc;
  			process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
  			return;
  		}
  	} else if (agent_config.onthrow && !inited) {
  		GSList *l;
  		gboolean found = FALSE;
  
  		for (l = agent_config.onthrow; l; l = l->next) {
  			char *ex_type = (char *)l->data;
  			char *f = mono_type_full_name (m_class_get_byval_arg (exc->object.vtable->klass));
  
  			if (!strcmp (ex_type, "") || !strcmp (ex_type, f))
  				found = TRUE;
  
  			g_free (f);
  		}
  
  		if (found) {
  			finish_agent_init (FALSE);
  
  			/*
  			 * Send an unsolicited EXCEPTION event with a dummy request id.
  			 */
  			events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
  			ei.exc = (MonoObject*)exc;
  			process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
  			return;
  		}
  	}
  
  	if (!inited)
  		return;
  
  	ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (throw_ctx), NULL);
  	if (catch_frame)
  		catch_ji = catch_frame->ji;
  	else
  		catch_ji = NULL;
  
  	ei.exc = (MonoObject*)exc;
  	ei.caught = catch_ctx != NULL;
  
  	mono_loader_lock ();
  
  	/* Treat exceptions which are caught in non-user code as unhandled */
  	for (i = 0; i < event_requests->len; ++i) {
  		EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
  		if (req->event_kind != EVENT_KIND_EXCEPTION)
  			continue;
  
  		for (j = 0; j < req->nmodifiers; ++j) {
  			Modifier *mod = &req->modifiers [j];
  
  			if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && catch_ji) {
  				int k;
  				gboolean found = FALSE;
  				MonoAssembly **assemblies = mod->data.assemblies;
  
  				if (assemblies) {
  					for (k = 0; assemblies [k]; ++k)
  						if (assemblies [k] == m_class_get_image (jinfo_get_method (catch_ji)->klass)->assembly)
  							found = TRUE;
  				}
  				if (!found)
  					ei.caught = FALSE;
  			}
  		}
  	}
  
  	events = create_event_list (EVENT_KIND_EXCEPTION, NULL, ji, &ei, &suspend_policy);
  	mono_loader_unlock ();
  
  	if (tls && ei.caught && catch_ctx) {
  		if (catch_frame) {
  			tls->has_catch_frame = TRUE;
  			tls->catch_frame = *catch_frame;
  		} else {
  			memset (&tls->catch_frame, 0, sizeof (tls->catch_frame));
  		}
  	}
  
  	process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, suspend_policy);
  
  	if (tls)
  		tls->has_catch_frame = FALSE;
  }
  
  static void
  debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
  {
  	DebuggerTlsData *tls;
  
  	if (!inited)
  		return;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	if (!tls)
  		return;
  
  	/*
  	 * We're about to invoke an exception filter during the first pass of exception handling.
  	 *
  	 * 'ctx' is the context that'll get passed to the filter ('call_filter (ctx, ei->data.filter)'),
  	 * 'orig_ctx' is the context where the exception has been thrown.
  	 *
  	 *
  	 * See mcs/class/Mono.Debugger.Soft/Tests/dtest-excfilter.il for an example.
  	 *
  	 * If we're stopped in Filter(), normal stack unwinding would first unwind to
  	 * the call site (line 37) and then continue to Main(), but it would never
  	 * include the throw site (line 32).
  	 *
  	 * Since exception filters are invoked during the first pass of exception handling,
  	 * the stack frames of the throw site are still intact, so we should include them
  	 * in a stack trace.
  	 *
  	 * We do this here by saving the context of the throw site in 'tls->filter_state'.
  	 *
  	 * Exception filters are used by MonoDroid, where we want to stop inside a call filter,
  	 * but report the location of the 'throw' to the user.
  	 *
  	 */
  
  	g_assert (mono_thread_state_init_from_monoctx (&tls->filter_state, orig_ctx));
  }
  
  static void
  debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
  {
  	DebuggerTlsData *tls;
  
  	if (!inited)
  		return;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	if (!tls)
  		return;
  
  	tls->filter_state.valid = FALSE;
  }
  
  static void 
  buffer_add_fixed_array (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain,
  					   gboolean as_vtype, GHashTable *parent_vtypes, gint32 len_fixed_array)
  {
  	buffer_add_byte (buf, VALUE_TYPE_ID_FIXED_ARRAY);
  	buffer_add_byte (buf, t->type);
  	buffer_add_int (buf, len_fixed_array );
  	for (int i = 0; i < len_fixed_array; i++) {
  		switch (t->type) {
  			case MONO_TYPE_BOOLEAN:
  			case MONO_TYPE_I1:
  			case MONO_TYPE_U1:
  				buffer_add_int (buf, ((gint8*)addr)[i]);
  				break;
  			case MONO_TYPE_CHAR:
  			case MONO_TYPE_I2:
  			case MONO_TYPE_U2:
  				buffer_add_int (buf, ((gint16*)addr)[i]);
  				break;
  			case MONO_TYPE_I4:
  			case MONO_TYPE_U4:
  			case MONO_TYPE_R4:
  				buffer_add_int (buf, ((gint32*)addr)[i]);
  				break;
  			case MONO_TYPE_I8:
  			case MONO_TYPE_U8:
  			case MONO_TYPE_R8:
  				buffer_add_long (buf, ((gint64*)addr)[i]);
  				break;
  			case MONO_TYPE_PTR: {
  				gssize val = *(gssize*)addr;
  				
  				buffer_add_byte (buf, t->type);
  				buffer_add_long (buf, val);
  				if (CHECK_PROTOCOL_VERSION(2, 46))
  					buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (t));
  				break;
  			}
  		}
  	}
  }
  /*
   * buffer_add_value_full:
   *
   *   Add the encoding of the value at ADDR described by T to the buffer.
   * AS_VTYPE determines whenever to treat primitive types as primitive types or
   * vtypes.
   */
  static void
  buffer_add_value_full (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain,
  					   gboolean as_vtype, GHashTable *parent_vtypes, gint32 len_fixed_array)
  {
  	MonoObject *obj;
  	gboolean boxed_vtype = FALSE;
  
  	if (t->byref) {
  		if (!(*(void**)addr)) {
  			/* This can happen with compiler generated locals */
  			//printf ("%s\n", mono_type_full_name (t));
  			buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
  			return;
  		}
  		g_assert (*(void**)addr);
  		addr = *(void**)addr;
  	}
  
  	if (as_vtype) {
  		switch (t->type) {
  		case MONO_TYPE_BOOLEAN:
  		case MONO_TYPE_I1:
  		case MONO_TYPE_U1:
  		case MONO_TYPE_CHAR:
  		case MONO_TYPE_I2:
  		case MONO_TYPE_U2:
  		case MONO_TYPE_I4:
  		case MONO_TYPE_U4:
  		case MONO_TYPE_R4:
  		case MONO_TYPE_I8:
  		case MONO_TYPE_U8:
  		case MONO_TYPE_R8:
  		case MONO_TYPE_I:
  		case MONO_TYPE_U:
  		case MONO_TYPE_PTR:
  			goto handle_vtype;
  			break;
  		default:
  			break;
  		}
  	}
  	
  	if (len_fixed_array > 1 && t->type != MONO_TYPE_VALUETYPE && CHECK_PROTOCOL_VERSION (2, 53))
  	{
  		buffer_add_fixed_array(buf, t, addr, domain, as_vtype, parent_vtypes, len_fixed_array);
  		return;
  	}
  	switch (t->type) {
  	case MONO_TYPE_VOID:
  		buffer_add_byte (buf, t->type);
  		break;
  	case MONO_TYPE_BOOLEAN:
  	case MONO_TYPE_I1:
  	case MONO_TYPE_U1:
  		buffer_add_byte (buf, t->type);
  		buffer_add_int (buf, *(gint8*)addr);
  		break;
  	case MONO_TYPE_CHAR:
  	case MONO_TYPE_I2:
  	case MONO_TYPE_U2:
  		buffer_add_byte (buf, t->type);
  		buffer_add_int (buf, *(gint16*)addr);
  		break;
  	case MONO_TYPE_I4:
  	case MONO_TYPE_U4:
  	case MONO_TYPE_R4:
  		buffer_add_byte (buf, t->type);
  		buffer_add_int (buf, *(gint32*)addr);
  		break;
  	case MONO_TYPE_I8:
  	case MONO_TYPE_U8:
  	case MONO_TYPE_R8:
  		buffer_add_byte (buf, t->type);
  		buffer_add_long (buf, *(gint64*)addr);
  		break;
  	case MONO_TYPE_I:
  	case MONO_TYPE_U:
  		/* Treat it as a vtype */
  		goto handle_vtype;
  	case MONO_TYPE_PTR: {
  		gssize val = *(gssize*)addr;
  		
  		buffer_add_byte (buf, t->type);
  		buffer_add_long (buf, val);
  		if (CHECK_PROTOCOL_VERSION(2, 46))
  			buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (t));
  		break;
  	}
  	handle_ref:
  	case MONO_TYPE_STRING:
  	case MONO_TYPE_SZARRAY:
  	case MONO_TYPE_OBJECT:
  	case MONO_TYPE_CLASS:
  	case MONO_TYPE_ARRAY:
  		obj = *(MonoObject**)addr;
  
  		if (!obj) {
  			buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
  		} else {
  			if (m_class_is_valuetype (obj->vtable->klass)) {
  				t = m_class_get_byval_arg (obj->vtable->klass);
  				addr = mono_object_unbox_internal (obj);
  				boxed_vtype = TRUE;
  				goto handle_vtype;
  			} else if (m_class_get_rank (obj->vtable->klass)) {
  				buffer_add_byte (buf, m_class_get_byval_arg (obj->vtable->klass)->type);
  			} else if (m_class_get_byval_arg (obj->vtable->klass)->type == MONO_TYPE_GENERICINST) {
  				buffer_add_byte (buf, MONO_TYPE_CLASS);
  			} else {
  				buffer_add_byte (buf, m_class_get_byval_arg (obj->vtable->klass)->type);
  			}
  			buffer_add_objid (buf, obj);
  		}
  		break;
  	handle_vtype:
  	case MONO_TYPE_VALUETYPE:
  	case MONO_TYPE_TYPEDBYREF: {
  		int nfields;
  		gpointer iter;
  		MonoClassField *f;
  		MonoClass *klass = mono_class_from_mono_type_internal (t);
  		int vtype_index;
  
  		if (boxed_vtype) {
  			/*
  			* Handle boxed vtypes recursively referencing themselves using fields.
  			*/
  			if (!parent_vtypes)
  				parent_vtypes = g_hash_table_new (NULL, NULL);
  			vtype_index = GPOINTER_TO_INT (g_hash_table_lookup (parent_vtypes, addr));
  			if (vtype_index) {
  				if (CHECK_PROTOCOL_VERSION (2, 33)) {
  					buffer_add_byte (buf, VALUE_TYPE_ID_PARENT_VTYPE);
  					buffer_add_int (buf, vtype_index - 1);
  				} else {
  					/* The client can't handle PARENT_VTYPE */
  					buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
  				}
  				break;
  			} else {
  				g_hash_table_insert (parent_vtypes, addr, GINT_TO_POINTER (g_hash_table_size (parent_vtypes) + 1));
  			}
  		}
  
  		buffer_add_byte (buf, MONO_TYPE_VALUETYPE);
  		buffer_add_byte (buf, m_class_is_enumtype (klass));
  		buffer_add_typeid (buf, domain, klass);
  
  		nfields = 0;
  		iter = NULL;
  		while ((f = mono_class_get_fields_internal (klass, &iter))) {
  			if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
  				continue;
  			if (mono_field_is_deleted (f))
  				continue;
  			nfields ++;
  		}
  		buffer_add_int (buf, nfields);
  
  		iter = NULL;
  		while ((f = mono_class_get_fields_internal (klass, &iter))) {
  			if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
  				continue;
  			if (mono_field_is_deleted (f))
  				continue;
  			buffer_add_value_full (buf, f->type, mono_vtype_get_field_addr (addr, f), domain, FALSE, parent_vtypes, len_fixed_array != 1 ? len_fixed_array : isFixedSizeArray(f));
  		}
  
  		if (boxed_vtype) {
  			g_hash_table_remove (parent_vtypes, addr);
  			if (g_hash_table_size (parent_vtypes) == 0) {
  				g_hash_table_destroy (parent_vtypes);
  				parent_vtypes = NULL;
  			}
  		}
  		break;
  	}
  	case MONO_TYPE_GENERICINST:
  		if (mono_type_generic_inst_is_valuetype (t)) {
  			goto handle_vtype;
  		} else {
  			goto handle_ref;
  		}
  		break;
  	default:
  		NOT_IMPLEMENTED;
  	}
  }
  
  static void
  buffer_add_value (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain)
  {
  	buffer_add_value_full (buf, t, addr, domain, FALSE, NULL, 1);
  }
  
  static gboolean
  obj_is_of_type (MonoObject *obj, MonoType *t)
  {
  	MonoClass *klass = obj->vtable->klass;
  	if (!mono_class_is_assignable_from_internal (mono_class_from_mono_type_internal (t), klass)) {
  		if (mono_class_is_transparent_proxy (klass)) {
  			klass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
  			if (mono_class_is_assignable_from_internal (mono_class_from_mono_type_internal (t), klass)) {
  				return TRUE;
  			}
  		}
  		return FALSE;
  	}
  	return TRUE;
  }
  
  static ErrorCode
  decode_value (MonoType *t, MonoDomain *domain, gpointer void_addr, gpointer void_buf, guint8 **endbuf, guint8 *limit, gboolean check_field_datatype);
  
  static ErrorCode
  decode_vtype (MonoType *t, MonoDomain *domain, gpointer void_addr, gpointer void_buf, guint8 **endbuf, guint8 *limit, gboolean check_field_datatype)
  {
  	guint8 *addr = (guint8*)void_addr;
  	guint8 *buf = (guint8*)void_buf;
  	gboolean is_enum;
  	MonoClass *klass;
  	MonoClassField *f;
  	int nfields;
  	gpointer iter = NULL;
  	MonoDomain *d;
  	ErrorCode err;
  
  	is_enum = decode_byte (buf, &buf, limit);
  	/* Enums are sent as a normal vtype */
  	if (is_enum)
  		return ERR_NOT_IMPLEMENTED;
  	klass = decode_typeid (buf, &buf, limit, &d, &err);
  	if (err != ERR_NONE)
  		return err;
  
  	if (t && klass != mono_class_from_mono_type_internal (t)) {
  		char *name = mono_type_full_name (t);
  		char *name2 = mono_type_full_name (m_class_get_byval_arg (klass));
  		DEBUG_PRINTF (1, "[%p] Expected value of type %s, got %s.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, name2);
  		g_free (name);
  		g_free (name2);
  		return ERR_INVALID_ARGUMENT;
  	}
  
  	nfields = decode_int (buf, &buf, limit);
  	while ((f = mono_class_get_fields_internal (klass, &iter))) {
  		if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
  			continue;
  		if (mono_field_is_deleted (f))
  			continue;
  		err = decode_value (f->type, domain, mono_vtype_get_field_addr (addr, f), buf, &buf, limit, check_field_datatype);
  		if (err != ERR_NONE)
  			return err;
  		nfields --;
  	}
  	g_assert (nfields == 0);
  
  	*endbuf = buf;
  
  	return ERR_NONE;
  }
  static ErrorCode decode_fixed_size_array_internal (MonoType *t, int type, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit, gboolean check_field_datatype)
  {
  	ErrorCode err = ERR_NONE;
  	int fixedSizeLen = 1;
  	int newType = MONO_TYPE_END;
  	if (CHECK_PROTOCOL_VERSION (2, 53)) {
  		newType = decode_byte (buf, &buf, limit);
  		fixedSizeLen = decode_int (buf, &buf, limit);
  		//t->type = newType;
  	}
  	for (int i = 0 ; i < fixedSizeLen; i++) {
  		switch (newType) {
  		case MONO_TYPE_BOOLEAN:
  			((guint8*)addr)[i] = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_CHAR:
  			((gunichar2*)addr)[i] = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_I1:
  			((gint8*)addr)[i] = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_U1:
  			((guint8*)addr)[i] = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_I2:
  			((gint16*)addr)[i] = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_U2:
  			((guint16*)addr)[i]  = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_I4:
  			((gint32*)addr)[i]  = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_U4:
  			((guint32*)addr)[i]  = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_I8:
  			((gint64*)addr)[i]  = decode_long (buf, &buf, limit);
  			break;
  		case MONO_TYPE_U8:
  			((guint64*)addr)[i]  = decode_long (buf, &buf, limit);
  			break;
  		case MONO_TYPE_R4:
  			((guint32*)addr)[i]  = decode_int (buf, &buf, limit);
  			break;
  		case MONO_TYPE_R8:
  			((guint64*)addr)[i]  = decode_long (buf, &buf, limit);
  			break;
  		}
  	}
  	*endbuf = buf;
  	return err;
  }
  static ErrorCode
  decode_value_internal (MonoType *t, int type, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit, gboolean check_field_datatype)
  {
  	ErrorCode err;
  	if (type != t->type && !MONO_TYPE_IS_REFERENCE (t) &&
  		!(t->type == MONO_TYPE_I && type == MONO_TYPE_VALUETYPE) &&
  		!(type == VALUE_TYPE_ID_FIXED_ARRAY) &&
  		!(t->type == MONO_TYPE_U && type == MONO_TYPE_VALUETYPE) &&
  		!(t->type == MONO_TYPE_PTR && type == MONO_TYPE_I8) &&
  		!(t->type == MONO_TYPE_GENERICINST && type == MONO_TYPE_VALUETYPE) &&
  		!(t->type == MONO_TYPE_VALUETYPE && type == MONO_TYPE_OBJECT)) {
  		char *name = mono_type_full_name (t);
  		DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, type);
  		g_free (name);
  		return ERR_INVALID_ARGUMENT;
  	}
  	if (type == VALUE_TYPE_ID_FIXED_ARRAY && t->type != MONO_TYPE_VALUETYPE) {
  		decode_fixed_size_array_internal (t, type, domain, addr, buf, endbuf, limit, check_field_datatype);
  		return ERR_NONE;
  	}
  
  	switch (t->type) {
  	case MONO_TYPE_BOOLEAN:
  		*(guint8*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_CHAR:
  		*(gunichar2*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_I1:
  		*(gint8*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_U1:
  		*(guint8*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_I2:
  		*(gint16*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_U2:
  		*(guint16*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_I4:
  		*(gint32*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_U4:
  		*(guint32*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_I8:
  		*(gint64*)addr = decode_long (buf, &buf, limit);
  		break;
  	case MONO_TYPE_U8:
  		*(guint64*)addr = decode_long (buf, &buf, limit);
  		break;
  	case MONO_TYPE_R4:
  		*(guint32*)addr = decode_int (buf, &buf, limit);
  		break;
  	case MONO_TYPE_R8:
  		*(guint64*)addr = decode_long (buf, &buf, limit);
  		break;
  	case MONO_TYPE_PTR:
  		/* We send these as I8, so we get them back as such */
  		g_assert (type == MONO_TYPE_I8);
  		*(gssize*)addr = decode_long (buf, &buf, limit);
  		break;
  	case MONO_TYPE_GENERICINST:
  		if (MONO_TYPE_ISSTRUCT (t)) {
  			/* The client sends these as a valuetype */
  			goto handle_vtype;
  		} else {
  			goto handle_ref;
  		}
  		break;
  	case MONO_TYPE_I:
  	case MONO_TYPE_U:
  		/* We send these as vtypes, so we get them back as such */
  		g_assert (type == MONO_TYPE_VALUETYPE);
  		/* Fall through */
  		handle_vtype:
  	case MONO_TYPE_VALUETYPE:
  		if (type == MONO_TYPE_OBJECT) {
  			/* Boxed vtype */
  			int objid = decode_objid (buf, &buf, limit);
  			ErrorCode err;
  			MonoObject *obj;
  
  			err = get_object (objid, (MonoObject**)&obj);
  			if (err != ERR_NONE)
  				return err;
  			if (!obj)
  				return ERR_INVALID_ARGUMENT;
  			if (obj->vtable->klass != mono_class_from_mono_type_internal (t)) {
  				DEBUG_PRINTF (1, "Expected type '%s', got object '%s'\n", mono_type_full_name (t), m_class_get_name (obj->vtable->klass));
  				return ERR_INVALID_ARGUMENT;
  			}
  			memcpy (addr, mono_object_unbox_internal (obj), mono_class_value_size (obj->vtable->klass, NULL));
  		} else {
  			err = decode_vtype (t, domain, addr, buf, &buf, limit, check_field_datatype);
  			if (err != ERR_NONE)
  				return err;
  		}
  		break;
  	handle_ref:
  	default:
  		if (MONO_TYPE_IS_REFERENCE (t)) {
  			if (type == MONO_TYPE_OBJECT) {
  				int objid = decode_objid (buf, &buf, limit);
  				ErrorCode err;
  				MonoObject *obj;
  
  				err = get_object (objid, (MonoObject**)&obj);
  				if (err != ERR_NONE)
  					return err;
  
  				if (obj) {
  					if (!obj_is_of_type (obj, t)) {
  						if (check_field_datatype) { //if it's not executing a invoke method check the datatypes.
  							DEBUG_PRINTF (1, "Expected type '%s', got '%s'\n", mono_type_full_name (t), m_class_get_name (obj->vtable->klass));
  							return ERR_INVALID_ARGUMENT;
  						}
  					}
  				}
  				if (obj && obj->vtable->domain != domain)
  					return ERR_INVALID_ARGUMENT;
  
  				mono_gc_wbarrier_generic_store_internal (addr, obj);
  			} else if (type == VALUE_TYPE_ID_NULL) {
  				*(MonoObject**)addr = NULL;
  			} else if (type == MONO_TYPE_VALUETYPE) {
  				ERROR_DECL (error);
  				guint8 *buf2;
  				gboolean is_enum;
  				MonoClass *klass;
  				MonoDomain *d;
  				guint8 *vtype_buf;
  				int vtype_buf_size;
  
  				/* This can happen when round-tripping boxed vtypes */
  				/*
  				* Obtain vtype class.
  				* Same as the beginning of the handle_vtype case above.
  				*/
  				buf2 = buf;
  				is_enum = decode_byte (buf, &buf, limit);
  				if (is_enum)
  					return ERR_NOT_IMPLEMENTED;
  				klass = decode_typeid (buf, &buf, limit, &d, &err);
  				if (err != ERR_NONE)
  					return err;
  
  				/* Decode the vtype into a temporary buffer, then box it. */
  				vtype_buf_size = mono_class_value_size (klass, NULL);
  				vtype_buf = (guint8 *)g_malloc0 (vtype_buf_size);
  				g_assert (vtype_buf);
  
  				buf = buf2;
  				err = decode_vtype (NULL, domain, vtype_buf, buf, &buf, limit, check_field_datatype);
  				if (err != ERR_NONE) {
  					g_free (vtype_buf);
  					return err;
  				}
  				*(MonoObject**)addr = mono_value_box_checked (d, klass, vtype_buf, error);
  				mono_error_cleanup (error);
  				g_free (vtype_buf);
  			} else {
  				char *name = mono_type_full_name (t);
  				DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, type);
  				g_free (name);
  				return ERR_INVALID_ARGUMENT;
  			}
  		} else if ((t->type == MONO_TYPE_GENERICINST) && 
  					mono_metadata_generic_class_is_valuetype (t->data.generic_class) &&
  					m_class_is_enumtype (t->data.generic_class->container_class)){
  			err = decode_vtype (t, domain, addr, buf, &buf, limit, check_field_datatype);
  			if (err != ERR_NONE)
  				return err;
  		} else {
  			NOT_IMPLEMENTED;
  		}
  		break;
  	}
  
  
  	*endbuf = buf;
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  decode_value (MonoType *t, MonoDomain *domain, gpointer void_addr, gpointer void_buf, guint8 **endbuf, guint8 *limit, gboolean check_field_datatype)
  {
  	guint8 *addr = (guint8*)void_addr;
  	guint8 *buf = (guint8*)void_buf;
  
  	ERROR_DECL (error);
  	ErrorCode err;
  	int type = decode_byte (buf, &buf, limit);
  
  	if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type_internal (t))) {
  		MonoType *targ = t->data.generic_class->context.class_inst->type_argv [0];
  		guint8 *nullable_buf;
  
  		/*
  		 * First try decoding it as a Nullable`1
  		 */
  		err = decode_value_internal (t, type, domain, addr, buf, endbuf, limit, check_field_datatype);
  		if (err == ERR_NONE)
  			return err;
  
  		/*
  		 * Then try decoding as a primitive value or null.
  		 */
  		if (targ->type == type) {
  			nullable_buf = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type_internal (targ)));
  			err = decode_value_internal (targ, type, domain, nullable_buf, buf, endbuf, limit, check_field_datatype);
  			if (err != ERR_NONE) {
  				g_free (nullable_buf);
  				return err;
  			}
  			MonoObject *boxed = mono_value_box_checked (domain, mono_class_from_mono_type_internal (targ), nullable_buf, error);
  			if (!is_ok (error)) {
  				mono_error_cleanup (error);
  				return ERR_INVALID_OBJECT;
  			}
  			mono_nullable_init (addr, boxed, mono_class_from_mono_type_internal (t));
  			g_free (nullable_buf);
  			*endbuf = buf;
  			return ERR_NONE;
  		} else if (type == VALUE_TYPE_ID_NULL) {
  			mono_nullable_init (addr, NULL, mono_class_from_mono_type_internal (t));
  			*endbuf = buf;
  			return ERR_NONE;
  		}
  	}
  
  	return decode_value_internal (t, type, domain, addr, buf, endbuf, limit, check_field_datatype);
  }
  
  static void
  add_var (Buffer *buf, MonoDebugMethodJitInfo *jit, MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, gboolean as_vtype)
  {
  	guint32 flags;
  	int reg;
  	guint8 *addr, *gaddr;
  	host_mgreg_t reg_val;
  
  	flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
  	reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
  
  	switch (flags) {
  	case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER:
  		reg_val = mono_arch_context_get_int_reg (ctx, reg);
  
  		buffer_add_value_full (buf, t, &reg_val, domain, as_vtype, NULL, 1);
  		break;
  	case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
  		addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
  		addr += (gint32)var->offset;
  
  		//printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
  
  		buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL, 1);
  		break;
  	case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
  		NOT_IMPLEMENTED;
  		break;
  	case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
  	case MONO_DEBUG_VAR_ADDRESS_MODE_VTADDR:
  		/* Same as regoffset, but with an indirection */
  		addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
  		addr += (gint32)var->offset;
  
  		gaddr = (guint8 *)*(gpointer*)addr;
  		g_assert (gaddr);
  		buffer_add_value_full (buf, t, gaddr, domain, as_vtype, NULL, 1);
  		break;
  	case MONO_DEBUG_VAR_ADDRESS_MODE_GSHAREDVT_LOCAL: {
  		MonoDebugVarInfo *info_var = jit->gsharedvt_info_var;
  		MonoDebugVarInfo *locals_var = jit->gsharedvt_locals_var;
  		MonoGSharedVtMethodRuntimeInfo *info;
  		guint8 *locals;
  		int idx;
  
  		idx = reg;
  
  		g_assert (info_var);
  		g_assert (locals_var);
  
  		flags = info_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
  		reg = info_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
  		if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
  			addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
  			addr += (gint32)info_var->offset;
  			info = (MonoGSharedVtMethodRuntimeInfo *)*(gpointer*)addr;
  		} else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
  			info = (MonoGSharedVtMethodRuntimeInfo *)mono_arch_context_get_int_reg (ctx, reg);
  		} else {
  			g_assert_not_reached ();
  		}
  		g_assert (info);
  
  		flags = locals_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
  		reg = locals_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
  		if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
  			addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
  			addr += (gint32)locals_var->offset;
  			locals = (guint8 *)*(gpointer*)addr;
  		} else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
  			locals = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
  		} else {
  			g_assert_not_reached ();
  		}
  		g_assert (locals);
  
  		addr = locals + GPOINTER_TO_INT (info->entries [idx]);
  
  		buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL, 1);
  		break;
  	}
  
  	default:
  		g_assert_not_reached ();
  	}
  }
  
  static void
  set_var (MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, guint8 *val, host_mgreg_t **reg_locations, MonoContext *restore_ctx)
  {
  	guint32 flags;
  	int reg, size;
  	guint8 *addr, *gaddr;
  
  	flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
  	reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
  
  	if (MONO_TYPE_IS_REFERENCE (t))
  		size = sizeof (gpointer);
  	else
  		size = mono_class_value_size (mono_class_from_mono_type_internal (t), NULL);
  
  	switch (flags) {
  	case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER: {
  #ifdef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
  		host_mgreg_t v;
  		gboolean is_signed = FALSE;
  
  		if (t->byref) {
  			addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
  
  			if (addr) {
  				// FIXME: Write barriers
  				mono_gc_memmove_atomic (addr, val, size);
  			}
  			break;
  		}
  
  		if (!t->byref && (t->type == MONO_TYPE_I1 || t->type == MONO_TYPE_I2 || t->type == MONO_TYPE_I4 || t->type == MONO_TYPE_I8))
  			is_signed = TRUE;
  
  		switch (size) {
  		case 1:
  			v = is_signed ? *(gint8*)val : *(guint8*)val;
  			break;
  		case 2:
  			v = is_signed ? *(gint16*)val : *(guint16*)val;
  			break;
  		case 4:
  			v = is_signed ? *(gint32*)val : *(guint32*)val;
  			break;
  		case 8:
  			v = is_signed ? *(gint64*)val : *(guint64*)val;
  			break;
  		default:
  			g_assert_not_reached ();
  		}
  
  		/* Set value on the stack or in the return ctx */
  		if (reg_locations [reg]) {
  			/* Saved on the stack */
  			DEBUG_PRINTF (1, "[dbg] Setting stack location %p for reg %x to %p.\n", reg_locations [reg], reg, (gpointer)v);
  			*(reg_locations [reg]) = v;
  		} else {
  			/* Not saved yet */
  			DEBUG_PRINTF (1, "[dbg] Setting context location for reg %x to %p.\n", reg, (gpointer)v);
  			mono_arch_context_set_int_reg (restore_ctx, reg, v);
  		}			
  
  		// FIXME: Move these to mono-context.h/c.
  		mono_arch_context_set_int_reg (ctx, reg, v);
  #else
  		// FIXME: Can't set registers, so we disable linears
  		NOT_IMPLEMENTED;
  #endif
  		break;
  	}
  	case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
  		addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
  		addr += (gint32)var->offset;
  
  		//printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
  
  		if (t->byref) {
  			addr = *(guint8**)addr;
  
  			if (!addr)
  				break;
  		}
  			
  		// FIXME: Write barriers
  		mono_gc_memmove_atomic (addr, val, size);
  		break;
  	case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
  		/* Same as regoffset, but with an indirection */
  		addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
  		addr += (gint32)var->offset;
  
  		gaddr = (guint8 *)*(gpointer*)addr;
  		g_assert (gaddr);
  		// FIXME: Write barriers
  		mono_gc_memmove_atomic (gaddr, val, size);
  		break;
  	case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
  		NOT_IMPLEMENTED;
  		break;
  	default:
  		g_assert_not_reached ();
  	}
  }
  
  static void
  set_interp_var (MonoType *t, gpointer addr, guint8 *val_buf)
  {
  	int size;
  
  	if (t->byref) {
  		addr = *(gpointer*)addr;
  		g_assert (addr);
  	}
  
  	if (MONO_TYPE_IS_REFERENCE (t))
  		size = sizeof (gpointer);
  	else
  		size = mono_class_value_size (mono_class_from_mono_type_internal (t), NULL);
  
  	memcpy (addr, val_buf, size);
  }
  
  static void
  clear_event_request (int req_id, int etype)
  {
  	int i;
  
  	mono_loader_lock ();
  	for (i = 0; i < event_requests->len; ++i) {
  		EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
  
  		if (req->id == req_id && req->event_kind == etype) {
  			if (req->event_kind == EVENT_KIND_BREAKPOINT)
  				mono_de_clear_breakpoint ((MonoBreakpoint *)req->info);
  			if (req->event_kind == EVENT_KIND_STEP) {
  				mono_de_cancel_ss ((SingleStepReq *)req->info);
  			}
  			if (req->event_kind == EVENT_KIND_METHOD_ENTRY)
  				mono_de_clear_breakpoint ((MonoBreakpoint *)req->info);
  			if (req->event_kind == EVENT_KIND_METHOD_EXIT)
  				mono_de_clear_breakpoint ((MonoBreakpoint *)req->info);
  			g_ptr_array_remove_index_fast (event_requests, i);
  			g_free (req);
  			break;
  		}
  	}
  	mono_loader_unlock ();
  }
  
  static void
  clear_assembly_from_modifier (EventRequest *req, Modifier *m, MonoAssembly *assembly)
  {
  	int i;
  
  	if (m->kind == MOD_KIND_EXCEPTION_ONLY && m->data.exc_class && m_class_get_image (m->data.exc_class)->assembly == assembly)
  		m->kind = MOD_KIND_NONE;
  	if (m->kind == MOD_KIND_ASSEMBLY_ONLY && m->data.assemblies) {
  		int count = 0, match_count = 0, pos;
  		MonoAssembly **newassemblies;
  
  		for (i = 0; m->data.assemblies [i]; ++i) {
  			count ++;
  			if (m->data.assemblies [i] == assembly)
  				match_count ++;
  		}
  
  		if (match_count) {
  			// +1 because we don't know length and we use last element to check for end
  			newassemblies = g_new0 (MonoAssembly*, count - match_count + 1);
  
  			pos = 0;
  			for (i = 0; i < count; ++i)
  				if (m->data.assemblies [i] != assembly)
  					newassemblies [pos ++] = m->data.assemblies [i];
  			g_assert (pos == count - match_count);
  			g_free (m->data.assemblies);
  			m->data.assemblies = newassemblies;
  		}
  	}
  }
  
  static void
  clear_assembly_from_modifiers (EventRequest *req, MonoAssembly *assembly)
  {
  	int i;
  
  	for (i = 0; i < req->nmodifiers; ++i) {
  		Modifier *m = &req->modifiers [i];
  
  		clear_assembly_from_modifier (req, m, assembly);
  	}
  }
  
  /*
   * clear_event_requests_for_assembly:
   *
   *   Clear all events requests which reference ASSEMBLY.
   */
  static void
  clear_event_requests_for_assembly (MonoAssembly *assembly)
  {
  	int i;
  	gboolean found;
  
  	mono_loader_lock ();
  	found = TRUE;
  	while (found) {
  		found = FALSE;
  		for (i = 0; i < event_requests->len; ++i) {
  			EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
  
  			clear_assembly_from_modifiers (req, assembly);
  
  			if (req->event_kind == EVENT_KIND_BREAKPOINT && breakpoint_matches_assembly ((MonoBreakpoint *)req->info, assembly)) {
  				clear_event_request (req->id, req->event_kind);
  				found = TRUE;
  				break;
  			}
  
  			if (req->event_kind == EVENT_KIND_STEP)
  				ss_clear_for_assembly ((SingleStepReq *)req->info, assembly);
  		}
  	}
  	mono_loader_unlock ();
  }
  
  /*
   * type_comes_from_assembly:
   *
   *   GHRFunc that returns TRUE if klass comes from assembly
   */
  static gboolean
  type_comes_from_assembly (gpointer klass, gpointer also_klass, gpointer assembly)
  {
  	return mono_type_in_image (m_class_get_byval_arg ((MonoClass*)klass), mono_assembly_get_image_internal ((MonoAssembly*)assembly));
  }
  
  /*
   * clear_types_for_assembly:
   *
   *   Clears types from loaded_classes for a given assembly
   */
  static void
  clear_types_for_assembly (MonoAssembly *assembly)
  {
  	MonoDomain *domain = mono_domain_get ();
  	AgentDomainInfo *info = NULL;
  
  	if (!domain || !domain_jit_info (domain))
  		/* Can happen during shutdown */
  		return;
  
  	info = get_agent_domain_info (domain);
  
  	mono_loader_lock ();
  	g_hash_table_foreach_remove (info->loaded_classes, type_comes_from_assembly, assembly);
  	mono_loader_unlock ();
  }
  
  static void
  dispose_vm (void)
  {
  	/* Clear all event requests */
  	mono_loader_lock ();
  	while (event_requests->len > 0) {
  		EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
  
  		clear_event_request (req->id, req->event_kind);
  	}
  	mono_loader_unlock ();
  
  	while (suspend_count > 0)
  		resume_vm ();
  	disconnected = TRUE;
  	vm_start_event_sent = FALSE;
  }
  
  static void
  count_thread_check_gc_finalizer (gpointer key, gpointer value, gpointer user_data)
  {
  	MonoThread *thread = (MonoThread *)value;
  	gboolean *ret = (gboolean *)user_data;
  	if (mono_gc_is_finalizer_internal_thread(thread->internal_thread)) {
  		DebuggerTlsData *tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread->internal_thread);
  		if (!tls->gc_finalizing) { //GC Finalizer is not running some finalizer code, so ignore it
  			*ret = TRUE;
  			return;
  		}
  	}
  }
  
  static void
  add_thread (gpointer key, gpointer value, gpointer user_data)
  {
  	MonoThread *thread = (MonoThread *)value;
  	Buffer *buf = (Buffer *)user_data;
  	if (mono_gc_is_finalizer_internal_thread(thread->internal_thread)) {
  		DebuggerTlsData *tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread->internal_thread);
  		if (!tls->gc_finalizing) //GC Finalizer is not running some finalizer code, so ignore it
  			return;
  	}
  	buffer_add_objid (buf, (MonoObject*)thread);
  }
  
  
  static ErrorCode
  do_invoke_method (DebuggerTlsData *tls, Buffer *buf, InvokeData *invoke, guint8 *p, guint8 **endp)
  {
  	ERROR_DECL (error);
  	guint8 *end = invoke->endp;
  	MonoMethod *m;
  	int i, nargs;
  	ErrorCode err;
  	MonoMethodSignature *sig;
  	guint8 **arg_buf;
  	void **args;
  	MonoObject *this_arg, *res, *exc = NULL;
  	MonoDomain *domain;
  	guint8 *this_buf;
  #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
  	MonoLMFExt ext;
  #endif
  	MonoStopwatch watch;
  
  	if (invoke->method) {
  		/* 
  		 * Invoke this method directly, currently only Environment.Exit () is supported.
  		 */
  		this_arg = NULL;
  		DEBUG_PRINTF (1, "[%p] Invoking method '%s' on receiver '%s'.\n", (gpointer) (gsize) mono_native_thread_id_get (), mono_method_full_name (invoke->method, TRUE), this_arg ? m_class_get_name (this_arg->vtable->klass) : "<null>");
  
  		mono_runtime_try_invoke (invoke->method, NULL, invoke->args, &exc, error);
  		mono_error_assert_ok (error);
  		g_assert_not_reached ();
  	}
  
  	m = decode_methodid (p, &p, end, &domain, &err);
  	if (err != ERR_NONE)
  		return err;
  	sig = mono_method_signature_internal (m);
  
  	if (m_class_is_valuetype (m->klass))
  		this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
  	else
  		this_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
  
  	if (m->is_generic) {
  		DEBUG_PRINTF (1, "[%p] Error: Attempting to invoke uninflated generic method %s.\n", (gpointer)(gsize)mono_native_thread_id_get (), mono_method_full_name (m, TRUE));
  		return ERR_INVALID_ARGUMENT;
  	} else if (m_class_is_valuetype (m->klass) && (m->flags & METHOD_ATTRIBUTE_STATIC)) {
  		/* Should be null */
  		int type = decode_byte (p, &p, end);
  		if (type != VALUE_TYPE_ID_NULL) {
  			DEBUG_PRINTF (1, "[%p] Error: Static vtype method invoked with this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
  			return ERR_INVALID_ARGUMENT;
  		}
  		memset (this_buf, 0, mono_class_instance_size (m->klass));
  	} else if (m_class_is_valuetype (m->klass) && !strcmp (m->name, ".ctor")) {
  			/* Could be null */
  			guint8 *tmp_p;
  
  			int type = decode_byte (p, &tmp_p, end);
  			if (type == VALUE_TYPE_ID_NULL) {
  				memset (this_buf, 0, mono_class_instance_size (m->klass));
  				p = tmp_p;
  			} else {
  				err = decode_value (m_class_get_byval_arg (m->klass), domain, this_buf, p, &p, end, FALSE);
  				if (err != ERR_NONE)
  					return err;
  			}
  	} else {
  		err = decode_value (m_class_get_byval_arg (m->klass), domain, this_buf, p, &p, end, FALSE);
  		if (err != ERR_NONE)
  			return err;
  	}
  
  	if (!m_class_is_valuetype (m->klass))
  		this_arg = *(MonoObject**)this_buf;
  	else
  		this_arg = NULL;
  
  	if (MONO_CLASS_IS_INTERFACE_INTERNAL (m->klass)) {
  		if (!this_arg) {
  			DEBUG_PRINTF (1, "[%p] Error: Interface method invoked without this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
  			return ERR_INVALID_ARGUMENT;
  		}
  		m = mono_object_get_virtual_method_internal (this_arg, m);
  		/* Transform this to the format the rest of the code expects it to be */
  		if (m_class_is_valuetype (m->klass)) {
  			this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
  			memcpy (this_buf, mono_object_unbox_internal (this_arg), mono_class_instance_size (m->klass));
  		}
  	} else if ((m->flags & METHOD_ATTRIBUTE_VIRTUAL) && !m_class_is_valuetype (m->klass) && invoke->flags & INVOKE_FLAG_VIRTUAL) {
  		if (!this_arg) {
  			DEBUG_PRINTF (1, "[%p] Error: invoke with INVOKE_FLAG_VIRTUAL flag set without this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
  			return ERR_INVALID_ARGUMENT;
  		}
  		m = mono_object_get_virtual_method_internal (this_arg, m);
  		if (m_class_is_valuetype (m->klass)) {
  			this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
  			memcpy (this_buf, mono_object_unbox_internal (this_arg), mono_class_instance_size (m->klass));
  		}
  	}
  
  	DEBUG_PRINTF (1, "[%p] Invoking method '%s' on receiver '%s'.\n", (gpointer) (gsize) mono_native_thread_id_get (), mono_method_full_name (m, TRUE), this_arg ? m_class_get_name (this_arg->vtable->klass) : "<null>");
  
  	if (this_arg && this_arg->vtable->domain != domain)
  		NOT_IMPLEMENTED;
  
  	if (!m_class_is_valuetype (m->klass) && !(m->flags & METHOD_ATTRIBUTE_STATIC) && !this_arg) {
  		if (!strcmp (m->name, ".ctor")) {
  			if (mono_class_is_abstract (m->klass))
  				return ERR_INVALID_ARGUMENT;
  			else {
  				ERROR_DECL (error);
  				this_arg = mono_object_new_checked (domain, m->klass, error);
  				if (!is_ok (error)) {
  					mono_error_cleanup (error);
  					return ERR_INVALID_ARGUMENT;
  				}
  			}
  		} else {
  			return ERR_INVALID_ARGUMENT;
  		}
  	}
  
  	if (this_arg && !obj_is_of_type (this_arg, m_class_get_byval_arg (m->klass)))
  		return ERR_INVALID_ARGUMENT;
  
  	nargs = decode_int (p, &p, end);
  	if (nargs != sig->param_count)
  		return ERR_INVALID_ARGUMENT;
  	/* Use alloca to get gc tracking */
  	arg_buf = (guint8 **)g_alloca (nargs * sizeof (gpointer));
  	memset (arg_buf, 0, nargs * sizeof (gpointer));
  	args = (gpointer *)g_alloca (nargs * sizeof (gpointer));
  	for (i = 0; i < nargs; ++i) {
  		if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
  			err = decode_value (sig->params [i], domain, (guint8*)&args [i], p, &p, end, TRUE);
  			if (err != ERR_NONE)
  				break;
  			if (args [i] && ((MonoObject*)args [i])->vtable->domain != domain)
  				NOT_IMPLEMENTED;
  
  			if (sig->params [i]->byref) {
  				arg_buf [i] = g_newa (guint8, sizeof (gpointer));
  				*(gpointer*)arg_buf [i] = args [i];
  				args [i] = arg_buf [i];
  			}
  		} else {
  			MonoClass *arg_class = mono_class_from_mono_type_internal (sig->params [i]);
  			arg_buf [i] = (guint8 *)g_alloca (mono_class_instance_size (arg_class));
  			err = decode_value (sig->params [i], domain, arg_buf [i], p, &p, end, TRUE);
  			if (err != ERR_NONE)
  				break;
  			if (mono_class_is_nullable (arg_class)) {
  				args [i] = mono_nullable_box (arg_buf [i], arg_class, error);
  				mono_error_assert_ok (error);
  			} else {
  				args [i] = arg_buf [i];
  			}
  		}
  	}
  
  	if (i < nargs)
  		return err;
  
  	if (invoke->flags & INVOKE_FLAG_DISABLE_BREAKPOINTS)
  		tls->disable_breakpoints = TRUE;
  	else
  		tls->disable_breakpoints = FALSE;
  
  	/* 
  	 * Add an LMF frame to link the stack frames on the invoke method with our caller.
  	 */
  #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
  	if (invoke->has_ctx) {
  		/* Setup our lmf */
  		memset (&ext, 0, sizeof (ext));
  		ext.kind = MONO_LMFEXT_DEBUGGER_INVOKE;
  		memcpy (&ext.ctx, &invoke->ctx, sizeof (MonoContext));
  
  		mono_push_lmf (&ext);
  	}
  #endif
  
  	mono_stopwatch_start (&watch);
  	res = mono_runtime_try_invoke (m, m_class_is_valuetype (m->klass) ? (gpointer) this_buf : (gpointer) this_arg, args, &exc, error);
  	if (!is_ok (error) && exc == NULL) {
  		exc = (MonoObject*) mono_error_convert_to_exception (error);
  	} else {
  		mono_error_cleanup (error); /* FIXME report error */
  	}
  	mono_stopwatch_stop (&watch);
  	DEBUG_PRINTF (1, "[%p] Invoke result: %p, exc: %s, time: %ld ms.\n", (gpointer) (gsize) mono_native_thread_id_get (), res, exc ? m_class_get_name (exc->vtable->klass) : NULL, (long)mono_stopwatch_elapsed_ms (&watch));
  	if (exc) {
  		buffer_add_byte (buf, 0);
  		buffer_add_value (buf, mono_get_object_type (), &exc, domain);
  	} else {
  		gboolean out_this = FALSE;
  		gboolean out_args = FALSE;
  
  		if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_THIS) && CHECK_PROTOCOL_VERSION (2, 35))
  			out_this = TRUE;
  		if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_ARGS) && CHECK_PROTOCOL_VERSION (2, 35))
  			out_args = TRUE;
  		buffer_add_byte (buf, 1 + (out_this ? 2 : 0) + (out_args ? 4 : 0));
  		if (m->string_ctor) {
  			buffer_add_value (buf, m_class_get_byval_arg (mono_get_string_class ()), &res, domain);
  		} else if (sig->ret->type == MONO_TYPE_VOID && !m->string_ctor) {
  			if (!strcmp (m->name, ".ctor")) {
  				if (!m_class_is_valuetype (m->klass))
  					buffer_add_value (buf, mono_get_object_type (), &this_arg, domain);
  				else
  					buffer_add_value (buf, m_class_get_byval_arg (m->klass), this_buf, domain);
  			} else {
  				buffer_add_value (buf, mono_get_void_type (), NULL, domain);
  			}
  		} else if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
  			if (sig->ret->byref) {
  				MonoType* ret_byval = m_class_get_byval_arg (mono_class_from_mono_type_internal (sig->ret));
  				buffer_add_value (buf, ret_byval, &res, domain);
  			} else {
  				buffer_add_value (buf, sig->ret, &res, domain);
  			}
  		} else if (m_class_is_valuetype (mono_class_from_mono_type_internal (sig->ret)) || sig->ret->type == MONO_TYPE_PTR || sig->ret->type == MONO_TYPE_FNPTR) {
  			if (mono_class_is_nullable (mono_class_from_mono_type_internal (sig->ret))) {
  				MonoClass *k = mono_class_from_mono_type_internal (sig->ret);
  				guint8 *nullable_buf = (guint8 *)g_alloca (mono_class_value_size (k, NULL));
  
  				g_assert (nullable_buf);
  				mono_nullable_init (nullable_buf, res, k);
  				buffer_add_value (buf, sig->ret, nullable_buf, domain);
  			} else {
  				g_assert (res);
  
  				if (sig->ret->byref) {
  					MonoType* ret_byval = m_class_get_byval_arg (mono_class_from_mono_type_internal (sig->ret));
  					buffer_add_value (buf, ret_byval, mono_object_unbox_internal (res), domain);
  				} else {
  					buffer_add_value (buf, sig->ret, mono_object_unbox_internal (res), domain);
  				}
  			}
  		} else {
  			NOT_IMPLEMENTED;
  		}
  		if (out_this)
  			/* Return the new value of the receiver after the call */
  			buffer_add_value (buf, m_class_get_byval_arg (m->klass), this_buf, domain);
  		if (out_args) {
  			buffer_add_int (buf, nargs);
  			for (i = 0; i < nargs; ++i) {
  				if (MONO_TYPE_IS_REFERENCE (sig->params [i]))
  					buffer_add_value (buf, sig->params [i], &args [i], domain);
  				else if (sig->params [i]->byref)
  					/* add_value () does an indirection */
  					buffer_add_value (buf, sig->params [i], &arg_buf [i], domain);
  				else
  					buffer_add_value (buf, sig->params [i], arg_buf [i], domain);
  			}
  		}
  	}
  
  	tls->disable_breakpoints = FALSE;
  
  #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
  	if (invoke->has_ctx)
  		mono_pop_lmf ((MonoLMF*)&ext);
  #endif
  
  	*endp = p;
  	// FIXME: byref arguments
  	// FIXME: varargs
  	return ERR_NONE;
  }
  
  /*
   * invoke_method:
   *
   *   Invoke the method given by tls->pending_invoke in the current thread.
   */
  static void
  invoke_method (void)
  {
  	DebuggerTlsData *tls;
  	InvokeData *invoke;
  	int id;
  	int i, mindex;
  	ErrorCode err;
  	Buffer buf;
  	MonoContext restore_ctx;
  	guint8 *p;
  
  	tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
  	g_assert (tls);
  
  	/*
  	 * Store the `InvokeData *' in `tls->invoke' until we're done with
  	 * the invocation, so CMD_VM_ABORT_INVOKE can check it.
  	 */
  
  	mono_loader_lock ();
  
  	invoke = tls->pending_invoke;
  	g_assert (invoke);
  	tls->pending_invoke = NULL;
  
  	invoke->last_invoke = tls->invoke;
  	tls->invoke = invoke;
  
  	mono_loader_unlock ();
  
  	tls->frames_up_to_date = FALSE;
  
  	id = invoke->id;
  
  	p = invoke->p;
  	err = ERR_NONE;
  	for (mindex = 0; mindex < invoke->nmethods; ++mindex) {
  		buffer_init (&buf, 128);
  
  		if (err) {
  			/* Fail the other invokes as well */
  		} else {
  			err = do_invoke_method (tls, &buf, invoke, p, &p);
  		}
  
  		if (tls->abort_requested) {
  			if (CHECK_PROTOCOL_VERSION (2, 42))
  				err = ERR_INVOKE_ABORTED;
  		}
  
  		/* Start suspending before sending the reply */
  		if (mindex == invoke->nmethods - 1) {
  			if (!(invoke->flags & INVOKE_FLAG_SINGLE_THREADED)) {
  				for (i = 0; i < invoke->suspend_count; ++i)
  					suspend_vm ();
  			}
  		}
  
  		send_reply_packet (id, err, &buf);
  	
  		buffer_free (&buf);
  	}
  
  	memcpy (&restore_ctx, &invoke->ctx, sizeof (MonoContext));
  
  	if (invoke->has_ctx)
  		save_thread_context (&restore_ctx);
  
  	if (invoke->flags & INVOKE_FLAG_SINGLE_THREADED) {
  		g_assert (tls->resume_count);
  		tls->resume_count -= invoke->suspend_count;
  	}
  
  	DEBUG_PRINTF (1, "[%p] Invoke finished (%d), resume_count = %d.\n", (gpointer) (gsize) mono_native_thread_id_get (), err, tls->resume_count);
  
  	/*
  	 * Take the loader lock to avoid race conditions with CMD_VM_ABORT_INVOKE:
  	 *
  	 * It is possible that mono_thread_internal_abort () was called
  	 * after the mono_runtime_invoke_checked() already returned, but it doesn't matter
  	 * because we reset the abort here.
  	 */
  
  	mono_loader_lock ();
  
  	if (tls->abort_requested)
  		mono_thread_internal_reset_abort (tls->thread);
  
  	tls->invoke = tls->invoke->last_invoke;
  	tls->abort_requested = FALSE;
  
  	mono_loader_unlock ();
  
  	g_free (invoke->p);
  	g_free (invoke);
  }
  
  static gboolean
  is_really_suspended (gpointer key, gpointer value, gpointer user_data)
  {
  	MonoThread *thread = (MonoThread *)value;
  	DebuggerTlsData *tls;
  	gboolean res;
  
  	mono_loader_lock ();
  	tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  	g_assert (tls);
  	res = tls->really_suspended;
  	mono_loader_unlock ();
  
  	return res;
  }
  
  static GPtrArray*
  get_source_files_for_type (MonoClass *klass)
  {
  	gpointer iter = NULL;
  	MonoMethod *method;
  	MonoDebugSourceInfo *sinfo;
  	GPtrArray *files;
  	int i, j;
  
  	files = g_ptr_array_new ();
  
  	while ((method = mono_class_get_methods (klass, &iter))) {
  		MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
  		GPtrArray *source_file_list;
  
  		if (minfo) {
  			mono_debug_get_seq_points (minfo, NULL, &source_file_list, NULL, NULL, NULL);
  			for (j = 0; j < source_file_list->len; ++j) {
  				sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, j);
  				for (i = 0; i < files->len; ++i)
  					if (!strcmp ((const char*)g_ptr_array_index (files, i), (const char*)sinfo->source_file))
  						break;
  				if (i == files->len)
  					g_ptr_array_add (files, g_strdup (sinfo->source_file));
  			}
  			g_ptr_array_free (source_file_list, TRUE);
  		}
  	}
  
  	return files;
  }
  
  
  typedef struct {
  	MonoTypeNameParse *info;
  	gboolean ignore_case;
  	GPtrArray *res_classes;
  	GPtrArray *res_domains;
  } GetTypesArgs;
  
  static void
  get_types (gpointer key, gpointer value, gpointer user_data)
  {
  	MonoAssembly *ass;
  	gboolean type_resolve;
  	MonoType *t;
  	GSList *tmp;
  	MonoDomain *domain = (MonoDomain*)key;
  
  	if (mono_domain_is_unloading (domain))
  		return;
  
  	MonoAssemblyLoadContext *alc = mono_domain_default_alc (domain);
  	GetTypesArgs *ud = (GetTypesArgs*)user_data;
  
  	mono_domain_assemblies_lock (domain);
  	for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
  		ass = (MonoAssembly *)tmp->data;
  
  		if (ass->image) {
  			ERROR_DECL (probe_type_error);
  			/* FIXME really okay to call while holding locks? */
  			t = mono_reflection_get_type_checked (alc, ass->image, ass->image, ud->info, ud->ignore_case, TRUE, &type_resolve, probe_type_error);
  			mono_error_cleanup (probe_type_error);
  			if (t) {
  				g_ptr_array_add (ud->res_classes, mono_type_get_class_internal (t));
  				g_ptr_array_add (ud->res_domains, domain);
  			}
  		}
  	}
  	mono_domain_assemblies_unlock (domain);
  }
  
  typedef struct {
  	gboolean ignore_case;
  	char *basename;
  	GPtrArray *res_classes;
  	GPtrArray *res_domains;
  } GetTypesForSourceFileArgs;
  
  static void
  get_types_for_source_file (gpointer key, gpointer value, gpointer user_data)
  {
  	GHashTableIter iter;
  	GSList *class_list = NULL;
  	MonoClass *klass = NULL;
  	GPtrArray *files = NULL;
  
  	GetTypesForSourceFileArgs *ud = (GetTypesForSourceFileArgs*)user_data;
  	MonoDomain *domain = (MonoDomain*)key;
  
  	if (mono_domain_is_unloading (domain))
  		return;
  
  	AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
  
  	/* Update 'source_file_to_class' cache */
  	g_hash_table_iter_init (&iter, info->loaded_classes);
  	while (g_hash_table_iter_next (&iter, NULL, (void**)&klass)) {
  		if (!g_hash_table_lookup (info->source_files, klass)) {
  			files = get_source_files_for_type (klass);
  			g_hash_table_insert (info->source_files, klass, files);
  
  			for (int i = 0; i < files->len; ++i) {
  				char *s = (char *)g_ptr_array_index (files, i);
  				char *s2 = dbg_path_get_basename (s);
  				char *s3;
  
  				class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, s2);
  				if (!class_list) {
  					class_list = g_slist_prepend (class_list, klass);
  					g_hash_table_insert (info->source_file_to_class, g_strdup (s2), class_list);
  				} else {
  					class_list = g_slist_prepend (class_list, klass);
  					g_hash_table_insert (info->source_file_to_class, s2, class_list);
  				}
  
  				/* The _ignorecase hash contains the lowercase path */
  				s3 = strdup_tolower (s2);
  				class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s3);
  				if (!class_list) {
  					class_list = g_slist_prepend (class_list, klass);
  					g_hash_table_insert (info->source_file_to_class_ignorecase, g_strdup (s3), class_list);
  				} else {
  					class_list = g_slist_prepend (class_list, klass);
  					g_hash_table_insert (info->source_file_to_class_ignorecase, s3, class_list);
  				}
  
  				g_free (s2);
  				g_free (s3);
  			}
  		}
  	}
  
  	if (ud->ignore_case) {
  		char *s;
  
  		s = strdup_tolower (ud->basename);
  		class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s);
  		g_free (s);
  	} else {
  		class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, ud->basename);
  	}
  
  	for (GSList *l = class_list; l; l = l->next) {
  		klass = (MonoClass *)l->data;
  
  		g_ptr_array_add (ud->res_classes, klass);
  		g_ptr_array_add (ud->res_domains, domain);
  	}
  }
  
  static void add_error_string (Buffer *buf, const char *str) 
  {
  	if (CHECK_PROTOCOL_VERSION (2, 56)) 
  		buffer_add_string (buf, str);
  }
  
  static ErrorCode
  vm_commands (int command, int id, guint8 *p, guint8 *end, Buffer *buf)
  {
  	switch (command) {
  	case CMD_VM_VERSION: {
  		char *build_info, *version;
  
  		build_info = mono_get_runtime_build_info ();
  		version = g_strdup_printf ("mono %s", build_info);
  
  		buffer_add_string (buf, version); /* vm version */
  		buffer_add_int (buf, MAJOR_VERSION);
  		buffer_add_int (buf, MINOR_VERSION);
  		g_free (build_info);
  		g_free (version);
  		break;
  	}
  	case CMD_VM_SET_PROTOCOL_VERSION: {
  		major_version = decode_int (p, &p, end);
  		minor_version = decode_int (p, &p, end);
  		protocol_version_set = TRUE;
  		DEBUG_PRINTF (1, "[dbg] Protocol version %d.%d, client protocol version %d.%d.\n", MAJOR_VERSION, MINOR_VERSION, major_version, minor_version);
  		break;
  	}
  	case CMD_VM_ALL_THREADS: {
  		// FIXME: Domains
  		gboolean remove_gc_finalizing = FALSE;
  		mono_loader_lock ();
  		int count = mono_g_hash_table_size (tid_to_thread_obj);
  		mono_g_hash_table_foreach (tid_to_thread_obj, count_thread_check_gc_finalizer, &remove_gc_finalizing);
  		if (remove_gc_finalizing)
  			count--;
  		buffer_add_int (buf, count);
  		mono_g_hash_table_foreach (tid_to_thread_obj, add_thread, buf);
  		
  		mono_loader_unlock ();
  		break;
  	}
  	case CMD_VM_SUSPEND:
  		suspend_vm ();
  		wait_for_suspend ();
  		break;
  	case CMD_VM_RESUME:
  		if (suspend_count == 0)
  			return ERR_NOT_SUSPENDED;
  		resume_vm ();
  		clear_suspended_objs ();
  		break;
  	case CMD_VM_DISPOSE:
  		dispose_vm ();
  		break;
  	case CMD_VM_EXIT: {
  		MonoInternalThread *thread;
  		DebuggerTlsData *tls;
  #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
  		MonoClass *env_class;
  #endif
  		MonoMethod *exit_method = NULL;
  		gpointer *args;
  		int exit_code;
  
  		exit_code = decode_int (p, &p, end);
  
  		// FIXME: What if there is a VM_DEATH event request with SUSPEND_ALL ?
  
  		/* Have to send a reply before exiting */
  		send_reply_packet (id, 0, buf);
  
  		/* Clear all event requests */
  		mono_loader_lock ();
  		while (event_requests->len > 0) {
  			EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
  
  			clear_event_request (req->id, req->event_kind);
  		}
  		mono_loader_unlock ();
  
  		/*
  		 * The JDWP documentation says that the shutdown is not orderly. It doesn't
  		 * specify whenever a VM_DEATH event is sent. We currently do an orderly
  		 * shutdown by hijacking a thread to execute Environment.Exit (). This is
  		 * better than doing the shutdown ourselves, since it avoids various races.
  		 */
  
  		suspend_vm ();
  		wait_for_suspend ();
  
  #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
  		env_class = mono_class_try_load_from_name (mono_defaults.corlib, "System", "Environment");
  		if (env_class) {
  			ERROR_DECL (error);
  			exit_method = mono_class_get_method_from_name_checked (env_class, "Exit", 1, 0, error);
  			mono_error_assert_ok (error);
  		}
  #endif
  
  		mono_loader_lock ();
  		thread = (MonoInternalThread *)mono_g_hash_table_find (tid_to_thread, is_really_suspended, NULL);
  		mono_loader_unlock ();
  
  		if (thread && exit_method) {
  			mono_loader_lock ();
  			tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  			mono_loader_unlock ();
  
  			args = g_new0 (gpointer, 1);
  			args [0] = g_malloc (sizeof (int));
  			*(int*)(args [0]) = exit_code;
  
  			tls->pending_invoke = g_new0 (InvokeData, 1);
  			tls->pending_invoke->method = exit_method;
  			tls->pending_invoke->args = args;
  			tls->pending_invoke->nmethods = 1;
  
  			while (suspend_count > 0)
  				resume_vm ();
  		} else {
  			/* 
  			 * No thread found, do it ourselves.
  			 * FIXME: This can race with normal shutdown etc.
  			 */
  			while (suspend_count > 0)
  				resume_vm ();
  
  			if (!mono_runtime_try_shutdown ())
  				break;
  
  			mono_environment_exitcode_set (exit_code);
  
  			/* Suspend all managed threads since the runtime is going away */
  #ifndef ENABLE_NETCORE
  			DEBUG_PRINTF (1, "Suspending all threads...\n");
  			mono_thread_suspend_all_other_threads ();
  #endif
  			DEBUG_PRINTF (1, "Shutting down the runtime...\n");
  			mono_runtime_quit_internal ();
  			transport_close2 ();
  			DEBUG_PRINTF (1, "Exiting...\n");
  
  			exit (exit_code);
  		}
  		break;
  	}		
  	case CMD_VM_INVOKE_METHOD:
  	case CMD_VM_INVOKE_METHODS: {
  		int objid = decode_objid (p, &p, end);
  		MonoThread *thread;
  		DebuggerTlsData *tls;
  		int i, count, flags, nmethods;
  		ErrorCode err;
  
  		err = get_object (objid, (MonoObject**)&thread);
  		if (err != ERR_NONE)
  			return err;
  
  		flags = decode_int (p, &p, end);
  
  		if (command == CMD_VM_INVOKE_METHODS)
  			nmethods = decode_int (p, &p, end);
  		else
  			nmethods = 1;
  
  		// Wait for suspending if it already started
  		if (suspend_count)
  			wait_for_suspend ();
  		if (!is_suspended ())
  			return ERR_NOT_SUSPENDED;
  
  		mono_loader_lock ();
  		tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
  		mono_loader_unlock ();
  		g_assert (tls);
  
  		if (!tls->really_suspended)
  			/* The thread is still running native code, can't do invokes */
  			return ERR_NOT_SUSPENDED;
  
  		/* 
  		 * Store the invoke data into tls, the thread will execute it after it is
  		 * resumed.
  		 */
  		if (tls->pending_invoke)
  			return ERR_NOT_SUSPENDED;
  		tls->pending_invoke = g_new0 (InvokeData, 1);
  		tls->pending_invoke->id = id;
  		tls->pending_invoke->flags = flags;
  		tls->pending_invoke->p = (guint8 *)g_malloc (end - p);
  		memcpy (tls->pending_invoke->p, p, end - p);
  		tls->pending_invoke->endp = tls->pending_invoke->p + (end - p);
  		tls->pending_invoke->suspend_count = suspend_count;
  		tls->pending_invoke->nmethods = nmethods;
  
  		if (flags & INVOKE_FLAG_SINGLE_THREADED) {
  			resume_thread (THREAD_TO_INTERNAL (thread));
  		}
  		else {
  			count = suspend_count;
  			for (i = 0; i < count; ++i)
  				resume_vm ();
  		}
  		break;
  	}
  	case CMD_VM_ABORT_INVOKE: {
  		int objid = decode_objid (p, &p, end);
  		MonoThread *thread;
  		DebuggerTlsData *tls;
  		int invoke_id;
  		ErrorCode err;
  
  		err = get_object (objid, (MonoObject**)&thread);
  		if (err != ERR_NONE)
  			return err;
  
  		invoke_id = decode_int (p, &p, end);
  
  		mono_loader_lock ();
  		tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
  		g_assert (tls);
  
  		if (tls->abort_requested) {
  			DEBUG_PRINTF (1, "Abort already requested.\n");
  			mono_loader_unlock ();
  			break;
  		}
  
  		/*
  		 * Check whether we're still inside the mono_runtime_invoke_checked() and that it's
  		 * actually the correct invocation.
  		 *
  		 * Careful, we do not stop the thread that's doing the invocation, so we can't
  		 * inspect its stack.  However, invoke_method() also acquires the loader lock
  		 * when it's done, so we're safe here.
  		 *
  		 */
  
  		if (!tls->invoke || (tls->invoke->id != invoke_id)) {
  			mono_loader_unlock ();
  			return ERR_NO_INVOCATION;
  		}
  
  		tls->abort_requested = TRUE;
  
  		mono_thread_internal_abort (THREAD_TO_INTERNAL (thread), FALSE);
  		mono_loader_unlock ();
  		break;
  	}
  
  	case CMD_VM_SET_KEEPALIVE: {
  		int timeout = decode_int (p, &p, end);
  		agent_config.keepalive = timeout;
  		// FIXME:
  #ifndef DISABLE_SOCKET_TRANSPORT
  		set_keepalive ();
  #else
  		NOT_IMPLEMENTED;
  #endif
  		break;
  	}
  	case CMD_VM_GET_TYPES_FOR_SOURCE_FILE: {
  		int i;
  		char *fname, *basename;
  		gboolean ignore_case;
  		GPtrArray *res_classes, *res_domains;
  
  		fname = decode_string (p, &p, end);
  		ignore_case = decode_byte (p, &p, end);
  
  		basename = dbg_path_get_basename (fname);
  
  		res_classes = g_ptr_array_new ();
  		res_domains = g_ptr_array_new ();
  
  		mono_loader_lock ();
  		GetTypesForSourceFileArgs args;
  		memset (&args, 0, sizeof (args));
  		args.ignore_case = ignore_case;
  		args.basename = basename;
  		args.res_classes  = res_classes;
  		args.res_domains = res_domains;
  		mono_de_foreach_domain (get_types_for_source_file, &args);
  		mono_loader_unlock ();
  
  		g_free (fname);
  		g_free (basename);
  
  		buffer_add_int (buf, res_classes->len);
  		for (i = 0; i < res_classes->len; ++i)
  			buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
  		g_ptr_array_free (res_classes, TRUE);
  		g_ptr_array_free (res_domains, TRUE);
  		break;
  	}
  	case CMD_VM_GET_TYPES: {
  		ERROR_DECL (error);
  		int i;
  		char *name;
  		gboolean ignore_case;
  		GPtrArray *res_classes, *res_domains;
  		MonoTypeNameParse info;
  
  		name = decode_string (p, &p, end);
  		ignore_case = decode_byte (p, &p, end);
  
  		if (!mono_reflection_parse_type_checked (name, &info, error)) {
  			add_error_string (buf, mono_error_get_message (error));
  			mono_error_cleanup (error);
  			g_free (name);
  			mono_reflection_free_type_info (&info);
  			return ERR_INVALID_ARGUMENT;
  		}
  
  		res_classes = g_ptr_array_new ();
  		res_domains = g_ptr_array_new ();
  
  		mono_loader_lock ();
  
  		GetTypesArgs args;
  		memset (&args, 0, sizeof (args));
  		args.info = &info;
  		args.ignore_case = ignore_case;
  		args.res_classes = res_classes;
  		args.res_domains = res_domains;
  
  		mono_de_foreach_domain (get_types, &args);
  
  		mono_loader_unlock ();
  
  		g_free (name);
  		mono_reflection_free_type_info (&info);
  
  		buffer_add_int (buf, res_classes->len);
  		for (i = 0; i < res_classes->len; ++i)
  			buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
  		g_ptr_array_free (res_classes, TRUE);
  		g_ptr_array_free (res_domains, TRUE);
  		break;
  	}
  	case CMD_VM_START_BUFFERING:
  	case CMD_VM_STOP_BUFFERING:
  		/* Handled in the main loop */
  		break;
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  event_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	ErrorCode err;
  	ERROR_DECL (error);
  
  	switch (command) {
  	case CMD_EVENT_REQUEST_SET: {
  		EventRequest *req;
  		int i, event_kind, suspend_policy, nmodifiers;
  		ModifierKind mod;
  		MonoMethod *method;
  		long location = 0;
  		MonoThread *step_thread;
  		int step_thread_id = 0;
  		StepDepth depth = STEP_DEPTH_INTO;
  		StepSize size = STEP_SIZE_MIN;
  		StepFilter filter = STEP_FILTER_NONE;
  		MonoDomain *domain;
  		Modifier *modifier;
  
  		event_kind = decode_byte (p, &p, end);
  		suspend_policy = decode_byte (p, &p, end);
  		nmodifiers = decode_byte (p, &p, end);
  
  		req = (EventRequest *)g_malloc0 (sizeof (EventRequest) + (nmodifiers * sizeof (Modifier)));
  		req->id = mono_atomic_inc_i32 (&event_request_id);
  		req->event_kind = event_kind;
  		req->suspend_policy = suspend_policy;
  		req->nmodifiers = nmodifiers;
  
  		method = NULL;
  		for (i = 0; i < nmodifiers; ++i) {
  			mod = (ModifierKind)decode_byte (p, &p, end);
  
  			req->modifiers [i].kind = mod;
  			if (mod == MOD_KIND_COUNT) {
  				req->modifiers [i].data.count = decode_int (p, &p, end);
  			} else if (mod == MOD_KIND_LOCATION_ONLY) {
  				method = decode_methodid (p, &p, end, &domain, &err);
  				if (err != ERR_NONE)
  					return err;
  				location = decode_long (p, &p, end);
  			} else if (mod == MOD_KIND_STEP) {
  				step_thread_id = decode_id (p, &p, end);
  				size = (StepSize)decode_int (p, &p, end);
  				depth = (StepDepth)decode_int (p, &p, end);
  				if (CHECK_PROTOCOL_VERSION (2, 16))
  					filter = (StepFilter)decode_int (p, &p, end);
  				req->modifiers [i].data.filter = filter;
  				if (!CHECK_PROTOCOL_VERSION (2, 26) && (req->modifiers [i].data.filter & STEP_FILTER_DEBUGGER_HIDDEN))
  					/* Treat STEP_THOUGH the same as HIDDEN */
  					req->modifiers [i].data.filter = (StepFilter)(req->modifiers [i].data.filter | STEP_FILTER_DEBUGGER_STEP_THROUGH);
  			} else if (mod == MOD_KIND_THREAD_ONLY) {
  				int id = decode_id (p, &p, end);
  
  				err = get_object (id, (MonoObject**)&req->modifiers [i].data.thread);
  				if (err != ERR_NONE) {
  					g_free (req);
  					return err;
  				}
  			} else if (mod == MOD_KIND_EXCEPTION_ONLY) {
  				MonoClass *exc_class = decode_typeid (p, &p, end, &domain, &err);
  
  				if (err != ERR_NONE)
  					return err;
  				req->modifiers [i].caught = decode_byte (p, &p, end);
  				req->modifiers [i].uncaught = decode_byte (p, &p, end);
  				if (CHECK_PROTOCOL_VERSION (2, 25))
  					req->modifiers [i].subclasses = decode_byte (p, &p, end);
  				else
  					req->modifiers [i].subclasses = TRUE;
  				if (exc_class) {
  					req->modifiers [i].data.exc_class = exc_class;
  
  					if (!mono_class_is_assignable_from_internal (mono_defaults.exception_class, exc_class)) {
  						g_free (req);
  						return ERR_INVALID_ARGUMENT;
  					}
  				}
  				if (CHECK_PROTOCOL_VERSION (2, 54)) {
  					req->modifiers [i].not_filtered_feature = decode_byte (p, &p, end);
  					req->modifiers [i].everything_else  = decode_byte (p, &p, end);
  					DEBUG_PRINTF (1, "[dbg] \tEXCEPTION_ONLY 2 filter (%s%s%s%s).\n", exc_class ? m_class_get_name (exc_class) : (req->modifiers [i].everything_else ? "everything else" : "all"), req->modifiers [i].caught ? ", caught" : "", req->modifiers [i].uncaught ? ", uncaught" : "", req->modifiers [i].subclasses ? ", include-subclasses" : "");
  				} else {
  					req->modifiers [i].not_filtered_feature = FALSE;
  					req->modifiers [i].everything_else = FALSE;
  					DEBUG_PRINTF (1, "[dbg] \tEXCEPTION_ONLY filter (%s%s%s%s).\n", exc_class ? m_class_get_name (exc_class) : "all", req->modifiers [i].caught ? ", caught" : "", req->modifiers [i].uncaught ? ", uncaught" : "", req->modifiers [i].subclasses ? ", include-subclasses" : "");
  				}
  				
  			} else if (mod == MOD_KIND_ASSEMBLY_ONLY) {
  				int n = decode_int (p, &p, end);
  				int j;
  
  				// +1 because we don't know length and we use last element to check for end
  				req->modifiers [i].data.assemblies = g_new0 (MonoAssembly*, n + 1);
  				for (j = 0; j < n; ++j) {
  					req->modifiers [i].data.assemblies [j] = decode_assemblyid (p, &p, end, &domain, &err);
  					if (err != ERR_NONE) {
  						g_free (req->modifiers [i].data.assemblies);
  						return err;
  					}
  				}
  			} else if (mod == MOD_KIND_SOURCE_FILE_ONLY) {
  				int n = decode_int (p, &p, end);
  				int j;
  
  				modifier = &req->modifiers [i];
  				modifier->data.source_files = g_hash_table_new (g_str_hash, g_str_equal);
  				for (j = 0; j < n; ++j) {
  					char *s = decode_string (p, &p, end);
  					char *s2;
  
  					if (s) {
  						s2 = strdup_tolower (s);
  						g_hash_table_insert (modifier->data.source_files, s2, s2);
  						g_free (s);
  					}
  				}
  			} else if (mod == MOD_KIND_TYPE_NAME_ONLY) {
  				int n = decode_int (p, &p, end);
  				int j;
  
  				modifier = &req->modifiers [i];
  				modifier->data.type_names = g_hash_table_new (g_str_hash, g_str_equal);
  				for (j = 0; j < n; ++j) {
  					char *s = decode_string (p, &p, end);
  
  					if (s)
  						g_hash_table_insert (modifier->data.type_names, s, s);
  				}
  			} else {
  				g_free (req);
  				return ERR_NOT_IMPLEMENTED;
  			}
  		}
  
  		if (req->event_kind == EVENT_KIND_BREAKPOINT) {
  			g_assert (method);
  
  			req->info = mono_de_set_breakpoint (method, location, req, error);
  			if (!is_ok (error)) {
  				g_free (req);
  				DEBUG_PRINTF (1, "[dbg] Failed to set breakpoint: %s\n", mono_error_get_message (error));
  				mono_error_cleanup (error);
  				return ERR_NO_SEQ_POINT_AT_IL_OFFSET;
  			}
  		} else if (req->event_kind == EVENT_KIND_STEP) {
  			g_assert (step_thread_id);
  
  			err = get_object (step_thread_id, (MonoObject**)&step_thread);
  			if (err != ERR_NONE) {
  				g_free (req);
  				return err;
  			}
  			
  			mono_loader_lock ();
  			DebuggerTlsData *tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL(step_thread));
  			mono_loader_unlock ();
  			g_assert (tls);
  		
  			if (tls->terminated) { 
  				/* if the thread is already terminated ignore the single step */
  				buffer_add_int (buf, req->id);
  				return ERR_NONE;
  			}
  
  			err = (ErrorCode)mono_de_ss_create (THREAD_TO_INTERNAL (step_thread), size, depth, filter, req);
  			if (err != ERR_NONE) {
  				g_free (req);
  				return err;
  			}
  		} else if (req->event_kind == EVENT_KIND_METHOD_ENTRY) {
  			req->info = mono_de_set_breakpoint (NULL, METHOD_ENTRY_IL_OFFSET, req, NULL);
  		} else if (req->event_kind == EVENT_KIND_METHOD_EXIT) {
  			req->info = mono_de_set_breakpoint (NULL, METHOD_EXIT_IL_OFFSET, req, NULL);
  		} else if (req->event_kind == EVENT_KIND_EXCEPTION) {
  		} else if (req->event_kind == EVENT_KIND_TYPE_LOAD) {
  		} else {
  			if (req->nmodifiers) {
  				g_free (req);
  				return ERR_NOT_IMPLEMENTED;
  			}
  		}
  
  		mono_loader_lock ();
  		g_ptr_array_add (event_requests, req);
  		
  		if (agent_config.defer) {
  			/* Transmit cached data to the client on receipt of the event request */
  			switch (req->event_kind) {
  			case EVENT_KIND_APPDOMAIN_CREATE:
  				/* Emit load events for currently loaded domains */
  				mono_de_foreach_domain (emit_appdomain_load, NULL);
  				break;
  			case EVENT_KIND_ASSEMBLY_LOAD:
  				/* Emit load events for currently loaded assemblies */
  				mono_domain_foreach (send_assemblies_for_domain, NULL);
  				break;
  			case EVENT_KIND_THREAD_START:
  				/* Emit start events for currently started threads */
  				mono_g_hash_table_foreach (tid_to_thread, emit_thread_start, NULL);
  				break;
  			case EVENT_KIND_TYPE_LOAD:
  				/* Emit type load events for currently loaded types */
  				mono_domain_foreach (send_types_for_domain, NULL);
  				break;
  			default:
  				break;
  			}
  		}
  		mono_loader_unlock ();
  
  		buffer_add_int (buf, req->id);
  		break;
  	}
  	case CMD_EVENT_REQUEST_CLEAR: {
  		int etype = decode_byte (p, &p, end);
  		int req_id = decode_int (p, &p, end);
  
  		// FIXME: Make a faster mapping from req_id to request
  		mono_loader_lock ();
  		clear_event_request (req_id, etype);
  		mono_loader_unlock ();
  		break;
  	}
  	case CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS: {
  		int i;
  
  		mono_loader_lock ();
  		i = 0;
  		while (i < event_requests->len) {
  			EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
  
  			if (req->event_kind == EVENT_KIND_BREAKPOINT) {
  				mono_de_clear_breakpoint ((MonoBreakpoint *)req->info);
  
  				g_ptr_array_remove_index_fast (event_requests, i);
  				g_free (req);
  			} else {
  				i ++;
  			}
  		}
  		mono_loader_unlock ();
  		break;
  	}
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  domain_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	ErrorCode err;
  	MonoDomain *domain;
  
  	switch (command) {
  	case CMD_APPDOMAIN_GET_ROOT_DOMAIN: {
  		buffer_add_domainid (buf, mono_get_root_domain ());
  		break;
  	}
  	case CMD_APPDOMAIN_GET_FRIENDLY_NAME: {
  		domain = decode_domainid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			return err;
  		buffer_add_string (buf, domain->friendly_name);
  		break;
  	}
  	case CMD_APPDOMAIN_GET_ASSEMBLIES: {
  		GSList *tmp;
  		MonoAssembly *ass;
  		int count;
  
  		domain = decode_domainid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			return err;
  		mono_domain_assemblies_lock (domain);
  		count = 0;
  		for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
  			count ++;
  		}
  		buffer_add_int (buf, count);
  		for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
  			ass = (MonoAssembly *)tmp->data;
  			buffer_add_assemblyid (buf, domain, ass);
  		}
  		mono_domain_assemblies_unlock (domain);
  		break;
  	}
  	case CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY: {
  		domain = decode_domainid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			return err;
  
  		buffer_add_assemblyid (buf, domain, domain->entry_assembly);
  		break;
  	}
  	case CMD_APPDOMAIN_GET_CORLIB: {
  		domain = decode_domainid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			return err;
  
  		buffer_add_assemblyid (buf, domain, m_class_get_image (domain->domain->mbr.obj.vtable->klass)->assembly);
  		break;
  	}
  	case CMD_APPDOMAIN_CREATE_STRING: {
  		char *s;
  		MonoString *o;
  		ERROR_DECL (error);
  
  		domain = decode_domainid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			return err;
  		s = decode_string (p, &p, end);
  
  		o = mono_string_new_checked (domain, s, error);
  		if (!is_ok (error)) {
  			DEBUG_PRINTF (1, "[dbg] Failed to allocate String object '%s': %s\n", s, mono_error_get_message (error));
  			mono_error_cleanup (error);
  			return ERR_INVALID_OBJECT;
  		}
  		buffer_add_objid (buf, (MonoObject*)o);
  		break;
  	}
  	case CMD_APPDOMAIN_CREATE_BYTE_ARRAY: {
  		ERROR_DECL (error);
  		MonoArray *arr;
  		gpointer elem;
  		domain = decode_domainid (p, &p, end, NULL, &err);
  		uintptr_t size = 0;
  		int len = decode_int (p, &p, end);
  		size = len;
  		arr = mono_array_new_full_checked (mono_domain_get (), mono_class_create_array (mono_get_byte_class(), 1), &size, NULL, error);
  		elem = mono_array_addr_internal (arr, guint8, 0);
  		memcpy (elem, p, len);
  		p += len;
  		buffer_add_objid (buf, (MonoObject*) arr);
  		break;
  	}
  	case CMD_APPDOMAIN_CREATE_BOXED_VALUE: {
  		ERROR_DECL (error);
  		MonoClass *klass;
  		MonoDomain *domain2;
  		MonoObject *o;
  
  		domain = decode_domainid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			return err;
  		klass = decode_typeid (p, &p, end, &domain2, &err);
  		if (err != ERR_NONE)
  			return err;
  
  		// FIXME:
  		g_assert (domain == domain2);
  
  		o = mono_object_new_checked (domain, klass, error);
  		mono_error_assert_ok (error);
  
  		err = decode_value (m_class_get_byval_arg (klass), domain, (guint8 *)mono_object_unbox_internal (o), p, &p, end, TRUE);
  		if (err != ERR_NONE)
  			return err;
  
  		buffer_add_objid (buf, o);
  		break;
  	}
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  get_assembly_object_command (MonoDomain *domain, MonoAssembly *ass, Buffer *buf, MonoError *error)
  {
  	HANDLE_FUNCTION_ENTER();
  	ErrorCode err = ERR_NONE;
  	error_init (error);
  	MonoReflectionAssemblyHandle o = mono_assembly_get_object_handle (domain, ass, error);
  	if (MONO_HANDLE_IS_NULL (o)) {
  		err = ERR_INVALID_OBJECT;
  		goto leave;
  	}
  	buffer_add_objid (buf, MONO_HANDLE_RAW (MONO_HANDLE_CAST (MonoObject, o)));
  leave:
  	HANDLE_FUNCTION_RETURN_VAL (err);
  }
  
  
  static ErrorCode
  assembly_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	ErrorCode err;
  	MonoAssembly *ass;
  	MonoDomain *domain;
  
  	ass = decode_assemblyid (p, &p, end, &domain, &err);
  	if (err != ERR_NONE)
  		return err;
  
  	switch (command) {
  	case CMD_ASSEMBLY_GET_LOCATION: {
  		buffer_add_string (buf, mono_image_get_filename (ass->image));
  		break;			
  	}
  	case CMD_ASSEMBLY_GET_ENTRY_POINT: {
  		guint32 token;
  		MonoMethod *m;
  
  		if (ass->image->dynamic) {
  			buffer_add_id (buf, 0);
  		} else {
  			token = mono_image_get_entry_point (ass->image);
  			if (token == 0) {
  				buffer_add_id (buf, 0);
  			} else {
  				ERROR_DECL (error);
  				m = mono_get_method_checked (ass->image, token, NULL, NULL, error);
  				if (!m)
  					mono_error_cleanup (error); /* FIXME don't swallow the error */
  				buffer_add_methodid (buf, domain, m);
  			}
  		}
  		break;			
  	}
  	case CMD_ASSEMBLY_GET_MANIFEST_MODULE: {
  		buffer_add_moduleid (buf, domain, ass->image);
  		break;
  	}
  	case CMD_ASSEMBLY_GET_OBJECT: {
  		ERROR_DECL (error);
  		err = get_assembly_object_command (domain, ass, buf, error);
  		mono_error_cleanup (error);
  		return err;
  	}
  	case CMD_ASSEMBLY_GET_DOMAIN: {
  		buffer_add_domainid (buf, domain);
  		break;
  	}
  	case CMD_ASSEMBLY_GET_TYPE: {
  		ERROR_DECL (error);
  		char *s = decode_string (p, &p, end);
  		char* original_s = g_strdup_printf ("\"%s\"", s);
  
  		gboolean ignorecase = decode_byte (p, &p, end);
  		MonoTypeNameParse info;
  		MonoType *t;
  		gboolean type_resolve, res;
  		MonoDomain *d = mono_domain_get ();
  		MonoAssemblyLoadContext *alc = mono_domain_default_alc (d);
  
  		/* This is needed to be able to find referenced assemblies */
  		res = mono_domain_set_fast (domain, FALSE);
  		g_assert (res);
  
  		if (!mono_reflection_parse_type_checked (s, &info, error)) {
  			mono_error_cleanup (error);
  			t = NULL;
  		} else {
  			if (info.assembly.name) {
  				mono_reflection_free_type_info (&info);
  				g_free (s);
  				mono_domain_set_fast (d, TRUE);
  				char* error_msg =  g_strdup_printf ("Unexpected assembly-qualified type %s was provided", original_s);
  				add_error_string (buf, error_msg);
  				g_free (error_msg);
  				g_free (original_s);
  				return ERR_INVALID_ARGUMENT;
  			}
  			t = mono_reflection_get_type_checked (alc, ass->image, ass->image, &info, ignorecase, TRUE, &type_resolve, error);
  			if (!is_ok (error)) {
  				mono_error_cleanup (error); /* FIXME don't swallow the error */
  				mono_reflection_free_type_info (&info);
  				g_free (s);
  				mono_domain_set_fast (d, TRUE);
  				char* error_msg =  g_strdup_printf ("Invalid type name %s", original_s);
  				add_error_string (buf, error_msg);
  				g_free (error_msg);
  				g_free (original_s);
  				return ERR_INVALID_ARGUMENT;
  			}
  		}
  		buffer_add_typeid (buf, domain, t ? mono_class_from_mono_type_internal (t) : NULL);
  		mono_reflection_free_type_info (&info);
  		g_free (s);
  		g_free (original_s);
  		mono_domain_set_fast (d, TRUE);
  
  		break;
  	}
  	case CMD_ASSEMBLY_GET_NAME: {
  		gchar *name;
  		MonoAssembly *mass = ass;
  
  		name = g_strdup_printf (
  		  "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
  		  mass->aname.name,
  		  mass->aname.major, mass->aname.minor, mass->aname.build, mass->aname.revision,
  		  mass->aname.culture && *mass->aname.culture? mass->aname.culture: "neutral",
  		  mass->aname.public_key_token [0] ? (char *)mass->aname.public_key_token : "null",
  		  (mass->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
  
  		buffer_add_string (buf, name);
  		g_free (name);
  		break;
  	}
      case CMD_ASSEMBLY_GET_METADATA_BLOB: {
          MonoImage* image = ass->image;
          if (ass->dynamic) {
              return ERR_NOT_IMPLEMENTED;
          }
          buffer_add_byte_array (buf, (guint8*)image->raw_data, image->raw_data_len);
          break;
      }
      case CMD_ASSEMBLY_GET_IS_DYNAMIC: {
          buffer_add_byte (buf, ass->dynamic);
          break;
      }
      case CMD_ASSEMBLY_GET_PDB_BLOB: {
          MonoImage* image = ass->image;
          MonoDebugHandle* handle = mono_debug_get_handle (image); 
          if (!handle) {
              return ERR_INVALID_ARGUMENT;
          }
          MonoPPDBFile* ppdb = handle->ppdb;
          if (ppdb) {
              image = mono_ppdb_get_image (ppdb);
              buffer_add_byte_array (buf, (guint8*)image->raw_data, image->raw_data_len);
          } else {
              buffer_add_byte_array (buf, NULL, 0);
          }
          break;
      }
      case CMD_ASSEMBLY_GET_TYPE_FROM_TOKEN: {
          if (ass->dynamic) {
              return ERR_NOT_IMPLEMENTED;
          }
          guint32 token = decode_int (p, &p, end);
          ERROR_DECL (error);
          error_init (error);
          MonoClass* mono_class = mono_class_get_checked (ass->image, token, error);
          if (!is_ok (error)) {
              add_error_string (buf, mono_error_get_message (error));
              mono_error_cleanup (error);
              return ERR_INVALID_ARGUMENT;
          }
          buffer_add_typeid (buf, domain, mono_class);
          mono_error_cleanup (error);
          break;
      }
      case CMD_ASSEMBLY_GET_METHOD_FROM_TOKEN: {
          if (ass->dynamic) {
              return ERR_NOT_IMPLEMENTED;
          }
          guint32 token = decode_int (p, &p, end);
          ERROR_DECL (error);
          error_init (error);
          MonoMethod* mono_method = mono_get_method_checked (ass->image, token, NULL, NULL, error);
          if (!is_ok (error)) {
              add_error_string (buf, mono_error_get_message (error));
              mono_error_cleanup (error);
              return ERR_INVALID_ARGUMENT;
          }
          buffer_add_methodid (buf, domain, mono_method);
          mono_error_cleanup (error);
          break;
      }
  	case CMD_ASSEMBLY_HAS_DEBUG_INFO: {
  		buffer_add_byte (buf, !ass->dynamic && mono_debug_image_has_debug_info (ass->image));
  		break;
  	}
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  module_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	ErrorCode err;
  	MonoDomain *domain;
  
  	switch (command) {
  	case CMD_MODULE_GET_INFO: {
  		MonoImage *image = decode_moduleid (p, &p, end, &domain, &err);
  		char *basename, *sourcelink = NULL;
  
  		if (CHECK_PROTOCOL_VERSION (2, 48))
  			sourcelink = mono_debug_image_get_sourcelink (image);
  
  		basename = g_path_get_basename (image->name);
  		buffer_add_string (buf, basename); // name
  		buffer_add_string (buf, image->module_name); // scopename
  		buffer_add_string (buf, image->name); // fqname
  		buffer_add_string (buf, mono_image_get_guid (image)); // guid
  		buffer_add_assemblyid (buf, domain, image->assembly); // assembly
  		if (CHECK_PROTOCOL_VERSION (2, 48))
  			buffer_add_string (buf, sourcelink);
  		g_free (basename);
  		g_free (sourcelink);
  		break;			
  	}
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  field_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	ErrorCode err;
  	MonoDomain *domain;
  
  	switch (command) {
  	case CMD_FIELD_GET_INFO: {
  		MonoClassField *f = decode_fieldid (p, &p, end, &domain, &err);
  
  		buffer_add_string (buf, f->name);
  		buffer_add_typeid (buf, domain, f->parent);
  		buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (f->type));
  		buffer_add_int (buf, f->type->attrs);
  		break;
  	}
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static void
  buffer_add_cattr_arg (Buffer *buf, MonoType *t, MonoDomain *domain, MonoObject *val)
  {
  	if (val && val->vtable->klass == mono_defaults.runtimetype_class) {
  		/* Special case these so the client doesn't have to handle Type objects */
  		
  		buffer_add_byte (buf, VALUE_TYPE_ID_TYPE);
  		buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (((MonoReflectionType*)val)->type));
  	} else if (MONO_TYPE_IS_REFERENCE (t))
  		buffer_add_value (buf, t, &val, domain);
  	else
  		buffer_add_value (buf, t, mono_object_unbox_internal (val), domain);
  }
  
  static ErrorCode
  buffer_add_cattrs (Buffer *buf, MonoDomain *domain, MonoImage *image, MonoClass *attr_klass, MonoCustomAttrInfo *cinfo)
  {
  	int i, j;
  	int nattrs = 0;
  
  	if (!cinfo) {
  		buffer_add_int (buf, 0);
  		return ERR_NONE;
  	}
  
  	SETUP_ICALL_FUNCTION;
  
  	for (i = 0; i < cinfo->num_attrs; ++i) {
  		if (!attr_klass || mono_class_has_parent (cinfo->attrs [i].ctor->klass, attr_klass))
  			nattrs ++;
  	}
  	buffer_add_int (buf, nattrs);
  
  	for (i = 0; i < cinfo->num_attrs; ++i) {
  		MonoCustomAttrEntry *attr = &cinfo->attrs [i];
  		if (!attr_klass || mono_class_has_parent (attr->ctor->klass, attr_klass)) {
  			MonoArray *typed_args, *named_args;
  			MonoArrayHandleOut typed_args_h, named_args_h;
  			MonoObjectHandle val_h;
  			MonoType *t;
  			CattrNamedArg *arginfo = NULL;
  			ERROR_DECL (error);
  
  			SETUP_ICALL_FRAME;
  			typed_args_h = MONO_HANDLE_NEW (MonoArray, NULL);
  			named_args_h = MONO_HANDLE_NEW (MonoArray, NULL);
  			val_h = MONO_HANDLE_NEW (MonoObject, NULL);
  
  			mono_reflection_create_custom_attr_data_args (image, attr->ctor, attr->data, attr->data_size, typed_args_h, named_args_h, &arginfo, error);
  			if (!is_ok (error)) {
  				DEBUG_PRINTF (2, "[dbg] mono_reflection_create_custom_attr_data_args () failed with: '%s'\n", mono_error_get_message (error));
  				mono_error_cleanup (error);
  				CLEAR_ICALL_FRAME;
  				return ERR_LOADER_ERROR;
  			}
  			typed_args = MONO_HANDLE_RAW (typed_args_h);
  			named_args = MONO_HANDLE_RAW (named_args_h);
  
  			buffer_add_methodid (buf, domain, attr->ctor);
  
  			/* Ctor args */
  			if (typed_args) {
  				buffer_add_int (buf, mono_array_length_internal (typed_args));
  				for (j = 0; j < mono_array_length_internal (typed_args); ++j) {
  					MonoObject *val = mono_array_get_internal (typed_args, MonoObject*, j);
  					MONO_HANDLE_ASSIGN_RAW (val_h, val);
  
  					t = mono_method_signature_internal (attr->ctor)->params [j];
  
  					buffer_add_cattr_arg (buf, t, domain, val);
  				}
  			} else {
  				buffer_add_int (buf, 0);
  			}
  
  			/* Named args */
  			if (named_args) {
  				buffer_add_int (buf, mono_array_length_internal (named_args));
  
  				for (j = 0; j < mono_array_length_internal (named_args); ++j) {
  					MonoObject *val = mono_array_get_internal (named_args, MonoObject*, j);
  					MONO_HANDLE_ASSIGN_RAW (val_h, val);
  
  					if (arginfo [j].prop) {
  						buffer_add_byte (buf, 0x54);
  						buffer_add_propertyid (buf, domain, arginfo [j].prop);
  					} else if (arginfo [j].field) {
  						buffer_add_byte (buf, 0x53);
  						buffer_add_fieldid (buf, domain, arginfo [j].field);
  					} else {
  						g_assert_not_reached ();
  					}
  
  					buffer_add_cattr_arg (buf, arginfo [j].type, domain, val);
  				}
  			} else {
  				buffer_add_int (buf, 0);
  			}
  			g_free (arginfo);
  
  			CLEAR_ICALL_FRAME;
  		}
  	}
  
  	return ERR_NONE;
  }
  
  /* FIXME: Code duplication with icall.c */
  static void
  collect_interfaces (MonoClass *klass, GHashTable *ifaces, MonoError *error)
  {
  	int i;
  	MonoClass *ic;
  
  	mono_class_setup_interfaces (klass, error);
  	if (!is_ok (error))
  		return;
  
  	int klass_interface_count = m_class_get_interface_count (klass);
  	MonoClass **klass_interfaces = m_class_get_interfaces (klass);
  	for (i = 0; i < klass_interface_count; i++) {
  		ic = klass_interfaces [i];
  		g_hash_table_insert (ifaces, ic, ic);
  
  		collect_interfaces (ic, ifaces, error);
  		if (!is_ok (error))
  			return;
  	}
  }
  
  static ErrorCode
  type_commands_internal (int command, MonoClass *klass, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
  {
  	HANDLE_FUNCTION_ENTER ();
  
  	ERROR_DECL (error);
  	MonoClass *nested;
  	MonoType *type;
  	gpointer iter;
  	guint8 b;
  	int nnested;
  	ErrorCode err;
  	char *name;
  	MonoStringHandle string_handle = MONO_HANDLE_NEW (MonoString, NULL); // FIXME? Not always needed.
  
  	switch (command) {
  	case CMD_TYPE_GET_INFO: {
  		buffer_add_string (buf, m_class_get_name_space (klass));
  		buffer_add_string (buf, m_class_get_name (klass));
  		// FIXME: byref
  		name = mono_type_get_name_full (m_class_get_byval_arg (klass), MONO_TYPE_NAME_FORMAT_FULL_NAME);
  		buffer_add_string (buf, name);
  		g_free (name);
  		buffer_add_assemblyid (buf, domain, m_class_get_image (klass)->assembly);
  		buffer_add_moduleid (buf, domain, m_class_get_image (klass));
  		buffer_add_typeid (buf, domain, m_class_get_parent (klass));
  		if (m_class_get_rank (klass) || m_class_get_byval_arg (klass)->type == MONO_TYPE_PTR)
  			buffer_add_typeid (buf, domain, m_class_get_element_class (klass));
  		else
  			buffer_add_id (buf, 0);
  		buffer_add_int (buf, m_class_get_type_token (klass));
  		buffer_add_byte (buf, m_class_get_rank (klass));
  		buffer_add_int (buf, mono_class_get_flags (klass));
  		b = 0;
  		type = m_class_get_byval_arg (klass);
  		// FIXME: Can't decide whenever a class represents a byref type
  		if (FALSE)
  			b |= (1 << 0);
  		if (type->type == MONO_TYPE_PTR)
  			b |= (1 << 1);
  		if (!type->byref && (((type->type >= MONO_TYPE_BOOLEAN) && (type->type <= MONO_TYPE_R8)) || (type->type == MONO_TYPE_I) || (type->type == MONO_TYPE_U)))
  			b |= (1 << 2);
  		if (type->type == MONO_TYPE_VALUETYPE)
  			b |= (1 << 3);
  		if (m_class_is_enumtype (klass))
  			b |= (1 << 4);
  		if (mono_class_is_gtd (klass))
  			b |= (1 << 5);
  		if (mono_class_is_gtd (klass) || mono_class_is_ginst (klass))
  			b |= (1 << 6);
  		buffer_add_byte (buf, b);
  		nnested = 0;
  		iter = NULL;
  		while ((nested = mono_class_get_nested_types (klass, &iter)))
  			nnested ++;
  		buffer_add_int (buf, nnested);
  		iter = NULL;
  		while ((nested = mono_class_get_nested_types (klass, &iter)))
  			buffer_add_typeid (buf, domain, nested);
  		if (CHECK_PROTOCOL_VERSION (2, 12)) {
  			if (mono_class_is_gtd (klass))
  				buffer_add_typeid (buf, domain, klass);
  			else if (mono_class_is_ginst (klass))
  				buffer_add_typeid (buf, domain, mono_class_get_generic_class (klass)->container_class);
  			else
  				buffer_add_id (buf, 0);
  		}
  		if (CHECK_PROTOCOL_VERSION (2, 15)) {
  			int count, i;
  
  			if (mono_class_is_ginst (klass)) {
  				MonoGenericInst *inst = mono_class_get_generic_class (klass)->context.class_inst;
  
  				count = inst->type_argc;
  				buffer_add_int (buf, count);
  				for (i = 0; i < count; i++)
  					buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (inst->type_argv [i]));
  			} else if (mono_class_is_gtd (klass)) {
  				MonoGenericContainer *container = mono_class_get_generic_container (klass);
  				MonoClass *pklass;
  
  				count = container->type_argc;
  				buffer_add_int (buf, count);
  				for (i = 0; i < count; i++) {
  					pklass = mono_class_create_generic_parameter (mono_generic_container_get_param (container, i));
  					buffer_add_typeid (buf, domain, pklass);
  				}
  			} else {
  				buffer_add_int (buf, 0);
  			}
  		}
  		break;
  	}
  	case CMD_TYPE_GET_METHODS: {
  		int nmethods;
  		int i = 0;
  		gpointer iter = NULL;
  		MonoMethod *m;
  
  		mono_class_setup_methods (klass);
  
  		nmethods = mono_class_num_methods (klass);
  
  		buffer_add_int (buf, nmethods);
  
  		while ((m = mono_class_get_methods (klass, &iter))) {
  			buffer_add_methodid (buf, domain, m);
  			i ++;
  		}
  		g_assert (i == nmethods);
  		break;
  	}
  	case CMD_TYPE_GET_FIELDS: {
  		int nfields;
  		int i = 0;
  		gpointer iter = NULL;
  		MonoClassField *f;
  
  		nfields = mono_class_num_fields (klass);
  
  		buffer_add_int (buf, nfields);
  
  		while ((f = mono_class_get_fields_internal (klass, &iter))) {
  			buffer_add_fieldid (buf, domain, f);
  			buffer_add_string (buf, f->name);
  			buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (f->type));
  			buffer_add_int (buf, f->type->attrs);
  			i ++;
  		}
  		g_assert (i == nfields);
  		break;
  	}
  	case CMD_TYPE_GET_PROPERTIES: {
  		int nprops;
  		int i = 0;
  		gpointer iter = NULL;
  		MonoProperty *p;
  
  		nprops = mono_class_num_properties (klass);
  
  		buffer_add_int (buf, nprops);
  
  		while ((p = mono_class_get_properties (klass, &iter))) {
  			buffer_add_propertyid (buf, domain, p);
  			buffer_add_string (buf, p->name);
  			buffer_add_methodid (buf, domain, p->get);
  			buffer_add_methodid (buf, domain, p->set);
  			buffer_add_int (buf, p->attrs);
  			i ++;
  		}
  		g_assert (i == nprops);
  		break;
  	}
  	case CMD_TYPE_GET_CATTRS: {
  		MonoClass *attr_klass;
  		MonoCustomAttrInfo *cinfo;
  
  		attr_klass = decode_typeid (p, &p, end, NULL, &err);
  		/* attr_klass can be NULL */
  		if (err != ERR_NONE)
  			goto exit;
  
  		cinfo = mono_custom_attrs_from_class_checked (klass, error);
  		if (!is_ok (error)) {
  			mono_error_cleanup (error); /* FIXME don't swallow the error message */
  			goto loader_error;
  		}
  
  		err = buffer_add_cattrs (buf, domain, m_class_get_image (klass), attr_klass, cinfo);
  		if (err != ERR_NONE)
  			goto exit;
  		break;
  	}
  	case CMD_TYPE_GET_FIELD_CATTRS: {
  		MonoClass *attr_klass;
  		MonoCustomAttrInfo *cinfo;
  		MonoClassField *field;
  
  		field = decode_fieldid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			goto exit;
  		attr_klass = decode_typeid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			goto exit;
  
  		cinfo = mono_custom_attrs_from_field_checked (klass, field, error);
  		if (!is_ok (error)) {
  			mono_error_cleanup (error); /* FIXME don't swallow the error message */
  			goto loader_error;
  		}
  
  		err = buffer_add_cattrs (buf, domain, m_class_get_image (klass), attr_klass, cinfo);
  		if (err != ERR_NONE)
  			goto exit;
  		break;
  	}
  	case CMD_TYPE_GET_PROPERTY_CATTRS: {
  		MonoClass *attr_klass;
  		MonoCustomAttrInfo *cinfo;
  		MonoProperty *prop;
  
  		prop = decode_propertyid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			goto exit;
  		attr_klass = decode_typeid (p, &p, end, NULL, &err);
  		if (err != ERR_NONE)
  			goto exit;
  
  		cinfo = mono_custom_attrs_from_property_checked (klass, prop, error);
  		if (!is_ok (error)) {
  			mono_error_cleanup (error); /* FIXME don't swallow the error message */
  			goto loader_error;
  		}
  
  		err = buffer_add_cattrs (buf, domain, m_class_get_image (klass), attr_klass, cinfo);
  		if (err != ERR_NONE)
  			goto exit;
  		break;
  	}
  	case CMD_TYPE_GET_VALUES:
  	case CMD_TYPE_GET_VALUES_2: {
  		guint8 *val;
  		MonoClassField *f;
  		MonoVTable *vtable;
  		MonoClass *k;
  		int len, i;
  		gboolean found;
  		MonoThread *thread_obj;
  		MonoInternalThread *thread = NULL;
  		guint32 special_static_type;
  
  		if (command == CMD_TYPE_GET_VALUES_2) {
  			int objid = decode_objid (p, &p, end);
  
  			err = get_object (objid, (MonoObject**)&thread_obj);
  			if (err != ERR_NONE)
  				goto exit;
  
  			thread = THREAD_TO_INTERNAL (thread_obj);
  		}
  
  		len = decode_int (p, &p, end);
  		for (i = 0; i < len; ++i) {
  			f = decode_fieldid (p, &p, end, NULL, &err);
  			if (err != ERR_NONE)
  				goto exit;
  
  			if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
  				goto invalid_fieldid;
  
  			special_static_type = mono_class_field_get_special_static_type (f);
  			if (special_static_type != SPECIAL_STATIC_NONE) {
  				if (!(thread && special_static_type == SPECIAL_STATIC_THREAD))
  					goto invalid_fieldid;
  			}
  
  			/* Check that the field belongs to the object */
  			found = FALSE;
  			for (k = klass; k; k = m_class_get_parent (k)) {
  				if (k == f->parent) {
  					found = TRUE;
  					break;
  				}
  			}
  			if (!found)
  				goto invalid_fieldid;
  
  			vtable = mono_class_vtable_checked (domain, f->parent, error);
  			goto_if_nok (error, invalid_fieldid);
  
  			val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type_internal (f->type)));
  			mono_field_static_get_value_for_thread (thread ? thread : mono_thread_internal_current (), vtable, f, val, string_handle, error);
  			goto_if_nok (error, invalid_fieldid);
  
  			buffer_add_value (buf, f->type, val, domain);
  			g_free (val);
  		}
  		break;
  	}
  	case CMD_TYPE_SET_VALUES: {
  		guint8 *val;
  		MonoClassField *f;
  		MonoVTable *vtable;
  		MonoClass *k;
  		int len, i;
  		gboolean found;
  
  		len = decode_int (p, &p, end);
  		for (i = 0; i < len; ++i) {
  			f = decode_fieldid (p, &p, end, NULL, &err);
  			if (err != ERR_NONE)
  				goto exit;
  
  			if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
  				goto invalid_fieldid;
  
  			if (mono_class_field_is_special_static (f))
  				goto invalid_fieldid;
  
  			/* Check that the field belongs to the object */
  			found = FALSE;
  			for (k = klass; k; k = m_class_get_parent (k)) {
  				if (k == f->parent) {
  					found = TRUE;
  					break;
  				}
  			}
  			if (!found)
  				goto invalid_fieldid;
  
  			// FIXME: Check for literal/const
  
  			vtable = mono_class_vtable_checked (domain, f->parent, error);
  			goto_if_nok (error, invalid_fieldid);
  
  			val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type_internal (f->type)));
  			err = decode_value (f->type, domain, val, p, &p, end, TRUE);
  			if (err != ERR_NONE) {
  				g_free (val);
  				goto exit;
  			}
  			if (MONO_TYPE_IS_REFERENCE (f->type))
  				mono_field_static_set_value_internal (vtable, f, *(gpointer*)val);
  			else
  				mono_field_static_set_value_internal (vtable, f, val);
  			g_free (val);
  		}
  		break;
  	}
  	case CMD_TYPE_GET_OBJECT: {
  		MonoObject *o = (MonoObject*)mono_type_get_object_checked (domain, m_class_get_byval_arg (klass), error);
  		if (!is_ok (error)) {
  			mono_error_cleanup (error);
  			goto invalid_object;
  		}
  		buffer_add_objid (buf, o);
  		break;
  	}
  	case CMD_TYPE_GET_SOURCE_FILES:
  	case CMD_TYPE_GET_SOURCE_FILES_2: {
  		char *source_file, *base;
  		GPtrArray *files;
  		int i;
  
  		files = get_source_files_for_type (klass);
  
  		buffer_add_int (buf, files->len);
  		for (i = 0; i < files->len; ++i) {
  			source_file = (char *)g_ptr_array_index (files, i);
  			if (command == CMD_TYPE_GET_SOURCE_FILES_2) {
  				buffer_add_string (buf, source_file);
  			} else {
  				base = dbg_path_get_basename (source_file);
  				buffer_add_string (buf, base);
  				g_free (base);
  			}
  			g_free (source_file);
  		}
  		g_ptr_array_free (files, TRUE);
  		break;
  	}
  	case CMD_TYPE_IS_ASSIGNABLE_FROM: {
  		MonoClass *oklass = decode_typeid (p, &p, end, NULL, &err);
  
  		if (err != ERR_NONE)
  			goto exit;
  		if (mono_class_is_assignable_from_internal (klass, oklass))
  			buffer_add_byte (buf, 1);
  		else
  			buffer_add_byte (buf, 0);
  		break;
  	}
  	case CMD_TYPE_GET_METHODS_BY_NAME_FLAGS: {
  		char *name = decode_string (p, &p, end);
  		int i, flags = decode_int (p, &p, end);
  		int mlisttype;
  		if (CHECK_PROTOCOL_VERSION (2, 48))
  			mlisttype = decode_int (p, &p, end);
  		else
  			mlisttype = 0; // MLISTTYPE_All
  		ERROR_DECL (error);
  		GPtrArray *array;
  
  		error_init (error);
  		array = mono_class_get_methods_by_name (klass, name, flags & ~BINDING_FLAGS_IGNORE_CASE, mlisttype, TRUE, error);
  		if (!is_ok (error)) {
  			mono_error_cleanup (error);
  			goto loader_error;
  		}
  		buffer_add_int (buf, array->len);
  		for (i = 0; i < array->len; ++i) {
  			MonoMethod *method = (MonoMethod *)g_ptr_array_index (array, i);
  			buffer_add_methodid (buf, domain, method);
  		}
  
  		g_ptr_array_free (array, TRUE);
  		g_free (name);
  		break;
  	}
  	case CMD_TYPE_GET_INTERFACES: {
  		MonoClass *parent;
  		GHashTable *iface_hash = g_hash_table_new (NULL, NULL);
  		MonoClass *tclass, *iface;
  		GHashTableIter iter;
  
  		tclass = klass;
  
  		for (parent = tclass; parent; parent = m_class_get_parent (parent)) {
  			mono_class_setup_interfaces (parent, error);
  			goto_if_nok (error, loader_error);
  
  			collect_interfaces (parent, iface_hash, error);
  			goto_if_nok (error, loader_error);
  		}
  
  		buffer_add_int (buf, g_hash_table_size (iface_hash));
  
  		g_hash_table_iter_init (&iter, iface_hash);
  		while (g_hash_table_iter_next (&iter, NULL, (void**)&iface))
  			buffer_add_typeid (buf, domain, iface);
  		g_hash_table_destroy (iface_hash);
  		break;
  	}
  	case CMD_TYPE_GET_INTERFACE_MAP: {
  		int tindex, ioffset;
  		gboolean variance_used;
  		MonoClass *iclass;
  		int len, nmethods, i;
  		gpointer iter;
  		MonoMethod *method;
  
  		len = decode_int (p, &p, end);
  		mono_class_setup_vtable (klass);
  
  		for (tindex = 0; tindex < len; ++tindex) {
  			iclass = decode_typeid (p, &p, end, NULL, &err);
  			if (err != ERR_NONE)
  				goto exit;
  
  			ioffset = mono_class_interface_offset_with_variance (klass, iclass, &variance_used);
  			if (ioffset == -1)
  				goto invalid_argument;
  
  			nmethods = mono_class_num_methods (iclass);
  			buffer_add_int (buf, nmethods);
  
  			iter = NULL;
  			while ((method = mono_class_get_methods (iclass, &iter))) {
  				buffer_add_methodid (buf, domain, method);
  			}
  			MonoMethod **klass_vtable = m_class_get_vtable (klass);
  			for (i = 0; i < nmethods; ++i)
  				buffer_add_methodid (buf, domain, klass_vtable [i + ioffset]);
  		}
  		break;
  	}
  	case CMD_TYPE_IS_INITIALIZED: {
  		MonoVTable *vtable = mono_class_vtable_checked (domain, klass, error);
  		goto_if_nok (error, loader_error);
  
  		if (vtable)
  			buffer_add_int (buf, (vtable->initialized || vtable->init_failed) ? 1 : 0);
  		else
  			buffer_add_int (buf, 0);
  		break;
  	}
  	case CMD_TYPE_CREATE_INSTANCE: {
  		ERROR_DECL (error);
  		MonoObject *obj;
  
  		obj = mono_object_new_checked (domain, klass, error);
  		mono_error_assert_ok (error);
  		buffer_add_objid (buf, obj);
  		break;
  	}
  	case CMD_TYPE_GET_VALUE_SIZE: {
  		int32_t value_size;
  
  		value_size = mono_class_value_size (klass, NULL);
  		buffer_add_int (buf, value_size);
  		break;
  	}
  	default:
  		err = ERR_NOT_IMPLEMENTED;
  		goto exit;
  	}
  
  	err = ERR_NONE;
  	goto exit;
  invalid_argument:
  	err = ERR_INVALID_ARGUMENT;
  	goto exit;
  invalid_fieldid:
  	err = ERR_INVALID_FIELDID;
  	goto exit;
  invalid_object:
  	err = ERR_INVALID_OBJECT;
  	goto exit;
  loader_error:
  	err = ERR_LOADER_ERROR;
  	goto exit;
  exit:
  	HANDLE_FUNCTION_RETURN_VAL (err);
  }
  
  static ErrorCode
  type_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	MonoClass *klass;
  	MonoDomain *old_domain;
  	MonoDomain *domain;
  	ErrorCode err;
  
  	klass = decode_typeid (p, &p, end, &domain, &err);
  	if (err != ERR_NONE)
  		return err;
  
  	old_domain = mono_domain_get ();
  
  	mono_domain_set_fast (domain, TRUE);
  
  	err = type_commands_internal (command, klass, domain, p, end, buf);
  
  	mono_domain_set_fast (old_domain, TRUE);
  
  	return err;
  }
  
  static ErrorCode
  method_commands_internal (int command, MonoMethod *method, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
  {
  	MonoMethodHeader *header;
  	ErrorCode err;
  
  	switch (command) {
  	case CMD_METHOD_GET_NAME: {
  		buffer_add_string (buf, method->name);
  		break;			
  	}
  	case CMD_METHOD_GET_DECLARING_TYPE: {
  		buffer_add_typeid (buf, domain, method->klass);
  		break;
  	}
  	case CMD_METHOD_GET_DEBUG_INFO: {
  		ERROR_DECL (error);
  		MonoDebugMethodInfo *minfo;
  		char *source_file;
  		int i, j, n_il_offsets;
  		int *source_files;
  		GPtrArray *source_file_list;
  		MonoSymSeqPoint *sym_seq_points;
  
  		header = mono_method_get_header_checked (method, error);
  		if (!header) {
  			mono_error_cleanup (error); /* FIXME don't swallow the error */
  			buffer_add_int (buf, 0);
  			buffer_add_string (buf, "");
  			buffer_add_int (buf, 0);
  			break;
  		}
  
  		minfo = mono_debug_lookup_method (method);
  		if (!minfo) {
  			buffer_add_int (buf, header->code_size);
  			buffer_add_string (buf, "");
  			buffer_add_int (buf, 0);
  			mono_metadata_free_mh (header);
  			break;
  		}
  
  		mono_debug_get_seq_points (minfo, &source_file, &source_file_list, &source_files, &sym_seq_points, &n_il_offsets);
  		buffer_add_int (buf, header->code_size);
  		if (CHECK_PROTOCOL_VERSION (2, 13)) {
  			buffer_add_int (buf, source_file_list->len);
  			for (i = 0; i < source_file_list->len; ++i) {
  				MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
  				buffer_add_string (buf, sinfo->source_file);
  				if (CHECK_PROTOCOL_VERSION (2, 14)) {
  					for (j = 0; j < 16; ++j)
  						buffer_add_byte (buf, sinfo->hash [j]);
  				}
  			}
  		} else {
  			buffer_add_string (buf, source_file);
  		}
  		buffer_add_int (buf, n_il_offsets);
  		DEBUG_PRINTF (10, "Line number table for method %s:\n", mono_method_full_name (method,  TRUE));
  		for (i = 0; i < n_il_offsets; ++i) {
  			MonoSymSeqPoint *sp = &sym_seq_points [i];
  			const char *srcfile = "";
  
  			if (source_files [i] != -1) {
  				MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, source_files [i]);
  				srcfile = sinfo->source_file;
  			}
  			DEBUG_PRINTF (10, "IL%x -> %s:%d %d %d %d\n", sp->il_offset, srcfile, sp->line, sp->column, sp->end_line, sp->end_column);
  			buffer_add_int (buf, sp->il_offset);
  			buffer_add_int (buf, sp->line);
  			if (CHECK_PROTOCOL_VERSION (2, 13))
  				buffer_add_int (buf, source_files [i]);
  			if (CHECK_PROTOCOL_VERSION (2, 19))
  				buffer_add_int (buf, sp->column);
  			if (CHECK_PROTOCOL_VERSION (2, 32)) {
  				buffer_add_int (buf, sp->end_line);
  				buffer_add_int (buf, sp->end_column);
  			}
  		}
  		g_free (source_file);
  		g_free (source_files);
  		g_free (sym_seq_points);
  		g_ptr_array_free (source_file_list, TRUE);
  		mono_metadata_free_mh (header);
  		break;
  	}
  	case CMD_METHOD_GET_PARAM_INFO: {
  		MonoMethodSignature *sig = mono_method_signature_internal (method);
  		guint32 i;
  		char **names;
  
  		/* FIXME: mono_class_from_mono_type_internal () and byrefs */
  
  		/* FIXME: Use a smaller encoding */
  		buffer_add_int (buf, sig->call_convention);
  		buffer_add_int (buf, sig->param_count);
  		buffer_add_int (buf, sig->generic_param_count);
  		buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (sig->ret));
  		for (i = 0; i < sig->param_count; ++i) {
  			/* FIXME: vararg */
  			buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (sig->params [i]));
  		}
  
  		/* Emit parameter names */
  		names = g_new (char *, sig->param_count);
  		mono_method_get_param_names (method, (const char **) names);
  		for (i = 0; i < sig->param_count; ++i)
  			buffer_add_string (buf, names [i]);
  		g_free (names);
  
  		break;
  	}
  	case CMD_METHOD_GET_LOCALS_INFO: {
  		ERROR_DECL (error);
  		int i, num_locals;
  		MonoDebugLocalsInfo *locals;
  		int *locals_map = NULL;
  
  		header = mono_method_get_header_checked (method, error);
  		if (!header) {
  			add_error_string (buf, mono_error_get_message (error));
  			mono_error_cleanup (error); /* FIXME don't swallow the error */
  			return ERR_INVALID_ARGUMENT;
  		}
  
  		locals = mono_debug_lookup_locals (method);
  		if (!locals) {
  			if (CHECK_PROTOCOL_VERSION (2, 43)) {
  				/* Scopes */
  				buffer_add_int (buf, 1);
  				buffer_add_int (buf, 0);
  				buffer_add_int (buf, header->code_size);
  			}
  			buffer_add_int (buf, header->num_locals);
  			/* Types */
  			for (i = 0; i < header->num_locals; ++i) {
  				buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (header->locals [i]));
  			}
  			/* Names */
  			for (i = 0; i < header->num_locals; ++i) {
  				char lname [128];
  				sprintf (lname, "V_%d", i);
  				buffer_add_string (buf, lname);
  			}
  			/* Scopes */
  			for (i = 0; i < header->num_locals; ++i) {
  				buffer_add_int (buf, 0);
  				buffer_add_int (buf, header->code_size);
  			}
  		} else {
  			if (CHECK_PROTOCOL_VERSION (2, 43)) {
  				/* Scopes */
  				buffer_add_int (buf, locals->num_blocks);
  				int last_start = 0;
  				for (i = 0; i < locals->num_blocks; ++i) {
  					buffer_add_int (buf, locals->code_blocks [i].start_offset - last_start);
  					buffer_add_int (buf, locals->code_blocks [i].end_offset - locals->code_blocks [i].start_offset);
  					last_start = locals->code_blocks [i].start_offset;
  				}
  			}
  
  			num_locals = locals->num_locals;
  			buffer_add_int (buf, num_locals);
  
  			/* Types */
  			for (i = 0; i < num_locals; ++i) {
  				g_assert (locals->locals [i].index < header->num_locals);
  				buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (header->locals [locals->locals [i].index]));
  			}
  			/* Names */
  			for (i = 0; i < num_locals; ++i)
  				buffer_add_string (buf, locals->locals [i].name);
  			/* Scopes */
  			for (i = 0; i < num_locals; ++i) {
  				if (locals->locals [i].block) {
  					buffer_add_int (buf, locals->locals [i].block->start_offset);
  					buffer_add_int (buf, locals->locals [i].block->end_offset);
  				} else {
  					buffer_add_int (buf, 0);
  					buffer_add_int (buf, header->code_size);
  				}
  			}
  		}
  		mono_metadata_free_mh (header);
  
  		if (locals)
  			mono_debug_free_locals (locals);
  		g_free (locals_map);
  
  		break;
  	}
  	case CMD_METHOD_GET_INFO:
  		buffer_add_int (buf, method->flags);
  		buffer_add_int (buf, method->iflags);
  		buffer_add_int (buf, method->token);
  		if (CHECK_PROTOCOL_VERSION (2, 12)) {
  			guint8 attrs = 0;
  			if (method->is_generic)
  				attrs |= (1 << 0);
  			if (mono_method_signature_internal (method)->generic_param_count)
  				attrs |= (1 << 1);
  			buffer_add_byte (buf, attrs);
  			if (method->is_generic || method->is_inflated) {
  				MonoMethod *result;
  
  				if (method->is_generic) {
  					result = method;
  				} else {
  					MonoMethodInflated *imethod = (MonoMethodInflated *)method;
  					
  					result = imethod->declaring;
  					if (imethod->context.class_inst) {
  						MonoClass *klass = ((MonoMethod *) imethod)->klass;
  						/*Generic methods gets the context of the GTD.*/
  						if (mono_class_get_context (klass)) {
  							ERROR_DECL (error);
  							result = mono_class_inflate_generic_method_full_checked (result, klass, mono_class_get_context (klass), error);
  							if (!is_ok (error)) {
  								add_error_string (buf, mono_error_get_message (error));
  								mono_error_cleanup (error);
  								return ERR_INVALID_ARGUMENT;
  							}
  						}
  					}
  				}
  
  				buffer_add_methodid (buf, domain, result);
  			} else {
  				buffer_add_id (buf, 0);
  			}
  			if (CHECK_PROTOCOL_VERSION (2, 15)) {
  				if (mono_method_signature_internal (method)->generic_param_count) {
  					int count, i;
  
  					if (method->is_inflated) {
  						MonoGenericInst *inst = mono_method_get_context (method)->method_inst;
  						if (inst) {
  							count = inst->type_argc;
  							buffer_add_int (buf, count);
  
  							for (i = 0; i < count; i++)
  								buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal (inst->type_argv [i]));
  						} else {
  							buffer_add_int (buf, 0);
  						}
  					} else if (method->is_generic) {
  						MonoGenericContainer *container = mono_method_get_generic_container (method);
  
  						count = mono_method_signature_internal (method)->generic_param_count;
  						buffer_add_int (buf, count);
  						for (i = 0; i < count; i++) {
  							MonoGenericParam *param = mono_generic_container_get_param (container, i);
  							MonoClass *pklass = mono_class_create_generic_parameter (param);
  							buffer_add_typeid (buf, domain, pklass);
  						}
  					} else {
  						buffer_add_int (buf, 0);
  					}
  				} else {
  					buffer_add_int (buf, 0);
  				}
  			}
  		}
  		break;
  	case CMD_METHOD_GET_BODY: {
  		ERROR_DECL (error);
  		int i;
  
  		header = mono_method_get_header_checked (method, error);
  		if (!header) {
  			mono_error_cleanup (error); /* FIXME don't swallow the error */
  			buffer_add_int (buf, 0);
  
  			if (CHECK_PROTOCOL_VERSION (2, 18))
  				buffer_add_int (buf, 0);
  		} else {
  			buffer_add_int (buf, header->code_size);
  			for (i = 0; i < header->code_size; ++i)
  				buffer_add_byte (buf, header->code [i]);
  
  			if (CHECK_PROTOCOL_VERSION (2, 18)) {
  				buffer_add_int (buf, header->num_clauses);
  				for (i = 0; i < header->num_clauses; ++i) {
  					MonoExceptionClause *clause = &header->clauses [i];
  
  					buffer_add_int (buf, clause->flags);
  					buffer_add_int (buf, clause->try_offset);
  					buffer_add_int (buf, clause->try_len);
  					buffer_add_int (buf, clause->handler_offset);
  					buffer_add_int (buf, clause->handler_len);
  					if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE)
  						buffer_add_typeid (buf, domain, clause->data.catch_class);
  					else if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER)
  						buffer_add_int (buf, clause->data.filter_offset);
  				}
  			}
  
  			mono_metadata_free_mh (header);
  		}
  
  		break;
  	}
  	case CMD_METHOD_RESOLVE_TOKEN: {
  		guint32 token = decode_int (p, &p, end);
  
  		// FIXME: Generics
  		switch (mono_metadata_token_code (token)) {
  		case MONO_TOKEN_STRING: {
  			ERROR_DECL (error);
  			MonoString *s;
  			char *s2;
  
  			s = mono_ldstr_checked (domain, m_class_get_image (method->klass), mono_metadata_token_index (token), error);
  			mono_error_assert_ok (error); /* FIXME don't swallow the error */
  
  			s2 = mono_string_to_utf8_checked_internal (s, error);
  			mono_error_assert_ok (error);
  
  			buffer_add_byte (buf, TOKEN_TYPE_STRING);
  			buffer_add_string (buf, s2);
  			g_free (s2);
  			break;
  		}
  		default: {
  			ERROR_DECL (error);
  			gpointer val;
  			MonoClass *handle_class;
  
  			if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
  				val = mono_method_get_wrapper_data (method, token);
  				handle_class = (MonoClass *)mono_method_get_wrapper_data (method, token + 1);
  
  				if (handle_class == NULL) {
  					// Can't figure out the token type
  					buffer_add_byte (buf, TOKEN_TYPE_UNKNOWN);
  					break;
  				}
  			} else {
  				val = mono_ldtoken_checked (m_class_get_image (method->klass), token, &handle_class, NULL, error);
  				if (!val)
  					g_error ("Could not load token due to %s", mono_error_get_message (error));
  			}
  
  			if (handle_class == mono_defaults.typehandle_class) {
  				buffer_add_byte (buf, TOKEN_TYPE_TYPE);
  				if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
  					buffer_add_typeid (buf, domain, (MonoClass *) val);
  				else
  					buffer_add_typeid (buf, domain, mono_class_from_mono_type_internal ((MonoType*)val));
  			} else if (handle_class == mono_defaults.fieldhandle_class) {
  				buffer_add_byte (buf, TOKEN_TYPE_FIELD);
  				buffer_add_fieldid (buf, domain, (MonoClassField *)val);
  			} else if (handle_class == mono_defaults.methodhandle_class) {
  				buffer_add_byte (buf, TOKEN_TYPE_METHOD);
  				buffer_add_methodid (buf, domain, (MonoMethod *)val);
  			} else if (handle_class == mono_defaults.string_class) {
  				char *s;
  
  				s = mono_string_to_utf8_checked_internal ((MonoString *)val, error);
  				if (!is_ok (error)) {
  					add_error_string (buf, mono_error_get_message (error));
  					mono_error_cleanup (error);
  					g_free (s);
  					return ERR_INVALID_ARGUMENT;
  				}
  				buffer_add_byte (buf, TOKEN_TYPE_STRING);
  				buffer_add_string (buf, s);
  				g_free (s);
  			} else {
  				g_assert_not_reached ();
  			}
  			break;
  		}
  		}
  		break;
  	}
  	case CMD_METHOD_GET_CATTRS: {
  		ERROR_DECL (error);
  		MonoClass *attr_klass;
  		MonoCustomAttrInfo *cinfo;
  
  		attr_klass = decode_typeid (p, &p, end, NULL, &err);
  		/* attr_klass can be NULL */
  		if (err != ERR_NONE)
  			return err;
  
  		cinfo = mono_custom_attrs_from_method_checked (method, error);
  		if (!is_ok (error)) {
  			mono_error_cleanup (error); /* FIXME don't swallow the error message */
  			return ERR_LOADER_ERROR;
  		}
  
  		err = buffer_add_cattrs (buf, domain, m_class_get_image (method->klass), attr_klass, cinfo);
  		if (err != ERR_NONE)
  			return err;
  		break;
  	}
  	case CMD_METHOD_MAKE_GENERIC_METHOD: {
  		ERROR_DECL (error);
  		MonoType **type_argv;
  		int i, type_argc;
  		MonoDomain *d;
  		MonoClass *klass;
  		MonoGenericInst *ginst;
  		MonoGenericContext tmp_context;
  		MonoMethod *inflated;
  
  		type_argc = decode_int (p, &p, end);
  		type_argv = g_new0 (MonoType*, type_argc);
  		for (i = 0; i < type_argc; ++i) {
  			klass = decode_typeid (p, &p, end, &d, &err);
  			if (err != ERR_NONE) {
  				g_free (type_argv);
  				return err;
  			}
  			if (domain != d) {
  				g_free (type_argv);
  				return ERR_INVALID_ARGUMENT;
  			}
  			type_argv [i] = m_class_get_byval_arg (klass);
  		}
  		ginst = mono_metadata_get_generic_inst (type_argc, type_argv);
  		g_free (type_argv);
  		tmp_context.class_inst = mono_class_is_ginst (method->klass) ? mono_class_get_generic_class (method->klass)->context.class_inst : NULL;
  		tmp_context.method_inst = ginst;
  
  		inflated = mono_class_inflate_generic_method_checked (method, &tmp_context, error);
  		if (!is_ok (error)) {
  			add_error_string (buf, mono_error_get_message (error));
  			mono_error_cleanup (error);
  			return ERR_INVALID_ARGUMENT;
  		}
  		if (!mono_verifier_is_method_valid_generic_instantiation (inflated))
  			return ERR_INVALID_ARGUMENT;
  		buffer_add_methodid (buf, domain, inflated);
  		break;
  	}
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  method_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	ErrorCode err;
  	MonoDomain *old_domain;
  	MonoDomain *domain;
  	MonoMethod *method;
  
  	method = decode_methodid (p, &p, end, &domain, &err);
  	if (err != ERR_NONE)
  		return err;
  
  	old_domain = mono_domain_get ();
  
  	mono_domain_set_fast (domain, TRUE);
  
  	err = method_commands_internal (command, method, domain, p, end, buf);
  
  	mono_domain_set_fast (old_domain, TRUE);
  
  	return err;
  }
  
  static ErrorCode
  thread_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	int objid = decode_objid (p, &p, end);
  	ErrorCode err;
  	MonoThread *thread_obj;
  	MonoInternalThread *thread;
  
  	err = get_object (objid, (MonoObject**)&thread_obj);
  	if (err != ERR_NONE)
  		return err;
  
  	thread = THREAD_TO_INTERNAL (thread_obj);
  	   
  	switch (command) {
  	case CMD_THREAD_GET_NAME: {
  		char *s = mono_thread_get_name_utf8 (thread_obj);
  
  		if (!s) {
  			buffer_add_int (buf, 0);
  		} else {
  			const size_t len = strlen (s);
  			buffer_add_int (buf, len);
  			buffer_add_data (buf, (guint8*)s, len);
  			g_free (s);
  		}
  		break;
  	}
  	case CMD_THREAD_GET_FRAME_INFO: {
  		DebuggerTlsData *tls;
  		int i, start_frame, length;
  
  		// Wait for suspending if it already started
  		// FIXME: Races with suspend_count
  		while (!is_suspended ()) {
  			if (suspend_count)
  				wait_for_suspend ();
  		}
  		/*
  		if (suspend_count)
  			wait_for_suspend ();
  		if (!is_suspended ())
  			return ERR_NOT_SUSPENDED;
  		*/
  
  		start_frame = decode_int (p, &p, end);
  		length = decode_int (p, &p, end);
  
  		if (start_frame != 0 || length != -1)
  			return ERR_NOT_IMPLEMENTED;
  
  		mono_loader_lock ();
  		tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  		mono_loader_unlock ();
  		if (tls == NULL)
  			return ERR_UNLOADED;
  
  		compute_frame_info (thread, tls, TRUE); //the last parameter is TRUE to force that the frame info that will be send is synchronised with the debugged thread
  
  		buffer_add_int (buf, tls->frame_count);
  		for (i = 0; i < tls->frame_count; ++i) {
  			buffer_add_int (buf, tls->frames [i]->id);
  			buffer_add_methodid (buf, tls->frames [i]->de.domain, tls->frames [i]->actual_method);
  			buffer_add_int (buf, tls->frames [i]->il_offset);
  			/*
  			 * Instead of passing the frame type directly to the client, we associate
  			 * it with the previous frame using a set of flags. This avoids lots of
  			 * conditional code in the client, since a frame whose type isn't 
  			 * FRAME_TYPE_MANAGED has no method, location, etc.
  			 */
  			buffer_add_byte (buf, tls->frames [i]->flags);
  		}
  
  		break;
  	}
  	case CMD_THREAD_GET_STATE:
  		buffer_add_int (buf, thread->state);
  		break;
  	case CMD_THREAD_GET_INFO:
  		buffer_add_byte (buf, thread->threadpool_thread);
  		break;
  	case CMD_THREAD_GET_ID:
  		buffer_add_long (buf, (guint64)(gsize)thread);
  		break;
  	case CMD_THREAD_GET_TID:
  		buffer_add_long (buf, (guint64)thread->tid);
  		break;
  	case CMD_THREAD_SET_IP: {
  		DebuggerTlsData *tls;
  		MonoMethod *method;
  		MonoDomain *domain;
  		MonoSeqPointInfo *seq_points;
  		SeqPoint sp;
  		gboolean found_sp;
  		gint64 il_offset;
  
  		method = decode_methodid (p, &p, end, &domain, &err);
  		if (err != ERR_NONE)
  			return err;
  		il_offset = decode_long (p, &p, end);
  
  		while (!is_suspended ()) {
  			if (suspend_count)
  				wait_for_suspend ();
  		}
  
  		mono_loader_lock ();
  		tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  		mono_loader_unlock ();
  		g_assert (tls);
  
  		compute_frame_info (thread, tls, FALSE);
  		if (tls->frame_count == 0 || tls->frames [0]->actual_method != method)
  			return ERR_INVALID_ARGUMENT;
  
  		found_sp = mono_find_seq_point (domain, method, il_offset, &seq_points, &sp);
  
  		g_assert (seq_points);
  
  		if (!found_sp)
  			return ERR_INVALID_ARGUMENT;
  
  		// FIXME: Check that the ip change is safe
  
  		DEBUG_PRINTF (1, "[dbg] Setting IP to %s:0x%0x(0x%0x)\n", tls->frames [0]->actual_method->name, (int)sp.il_offset, (int)sp.native_offset);
  
  		if (tls->frames [0]->de.ji->is_interp) {
  			MonoJitTlsData *jit_data = thread->thread_info->jit_data;
  			mini_get_interp_callbacks ()->set_resume_state (jit_data, NULL, NULL, tls->frames [0]->interp_frame, (guint8*)tls->frames [0]->de.ji->code_start + sp.native_offset);
  		} else {
  			MONO_CONTEXT_SET_IP (&tls->restore_state.ctx, (guint8*)tls->frames [0]->de.ji->code_start + sp.native_offset);
  		}
  		break;
  	}
  	case CMD_THREAD_ELAPSED_TIME: {
  		DebuggerTlsData *tls;
  		mono_loader_lock ();
  		tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  		mono_loader_unlock ();
  		g_assert (tls);
  		buffer_add_long (buf, (long)mono_stopwatch_elapsed_ms (&tls->step_time));
  		break;
  	}
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  frame_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	int objid;
  	ErrorCode err;
  	MonoThread *thread_obj;
  	MonoInternalThread *thread;
  	int pos, i, len, frame_idx;
  	DebuggerTlsData *tls;
  	StackFrame *frame;
  	MonoDebugMethodJitInfo *jit;
  	MonoMethodSignature *sig;
  	gssize id;
  	MonoMethodHeader *header;
  
  	objid = decode_objid (p, &p, end);
  	err = get_object (objid, (MonoObject**)&thread_obj);
  	if (err != ERR_NONE)
  		return err;
  
  	thread = THREAD_TO_INTERNAL (thread_obj);
  
  	id = decode_id (p, &p, end);
  
  	mono_loader_lock ();
  	tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
  	mono_loader_unlock ();
  	g_assert (tls);
  
  	for (i = 0; i < tls->frame_count; ++i) {
  		if (tls->frames [i]->id == id)
  			break;
  	}
  	if (i == tls->frame_count)
  		return ERR_INVALID_FRAMEID;
  
  	/* The thread is still running native code, can't get frame variables info */
  	if (!tls->really_suspended && !tls->async_state.valid) 
  		return ERR_NOT_SUSPENDED;
  	frame_idx = i;
  	frame = tls->frames [frame_idx];
  
  	/* This is supported for frames without has_ctx etc. set */
  	if (command == CMD_STACK_FRAME_GET_DOMAIN) {
  		if (CHECK_PROTOCOL_VERSION (2, 38))
  			buffer_add_domainid (buf, frame->de.domain);
  		return ERR_NONE;
  	}
  
  	if (!frame->has_ctx)
  		return ERR_ABSENT_INFORMATION;
  
  	if (!ensure_jit ((DbgEngineStackFrame*)frame))
  		return ERR_ABSENT_INFORMATION;
  
  	jit = frame->jit;
  
  	sig = mono_method_signature_internal (frame->actual_method);
  
  	if (!(jit->has_var_info || frame->de.ji->is_interp) || !mono_get_seq_points (frame->de.domain, frame->actual_method))
  		/*
  		 * The method is probably from an aot image compiled without soft-debug, variables might be dead, etc.
  		 */
  		return ERR_ABSENT_INFORMATION;
  
  	switch (command) {
  	case CMD_STACK_FRAME_GET_VALUES: {
  		ERROR_DECL (error);
  		len = decode_int (p, &p, end);
  		header = mono_method_get_header_checked (frame->actual_method, error);
  		mono_error_assert_ok (error); /* FIXME report error */
  
  		for (i = 0; i < len; ++i) {
  			pos = decode_int (p, &p, end);
  
  			if (pos < 0) {
  				pos = - pos - 1;
  
  				DEBUG_PRINTF (4, "[dbg]   send arg %d.\n", pos);
  
  				if (frame->de.ji->is_interp) {
  					guint8 *addr;
  
  					addr = (guint8*)mini_get_interp_callbacks ()->frame_get_arg (frame->interp_frame, pos);
  
  					buffer_add_value_full (buf, sig->params [pos], addr, frame->de.domain, FALSE, NULL, 1);
  				} else {
  					g_assert (pos >= 0 && pos < jit->num_params);
  
  					add_var (buf, jit, sig->params [pos], &jit->params [pos], &frame->ctx, frame->de.domain, FALSE);
  				}
  			} else {
  				MonoDebugLocalsInfo *locals;
  
  				locals = mono_debug_lookup_locals (frame->de.method);
  				if (locals) {
  					g_assert (pos < locals->num_locals);
  					pos = locals->locals [pos].index;
  					mono_debug_free_locals (locals);
  				}
  
  				DEBUG_PRINTF (4, "[dbg]   send local %d.\n", pos);
  
  				if (frame->de.ji->is_interp) {
  					guint8 *addr;
  
  					addr = (guint8*)mini_get_interp_callbacks ()->frame_get_local (frame->interp_frame, pos);
  
  					buffer_add_value_full (buf, header->locals [pos], addr, frame->de.domain, FALSE, NULL, 1);
  				} else {
  					g_assert (pos >= 0 && pos < jit->num_locals);
  
  					add_var (buf, jit, header->locals [pos], &jit->locals [pos], &frame->ctx, frame->de.domain, FALSE);
  				}
  			}
  		}
  		mono_metadata_free_mh (header);
  		break;
  	}
  	case CMD_STACK_FRAME_GET_THIS: {
  		if (frame->de.method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
  			return ERR_ABSENT_INFORMATION;
  		if (m_class_is_valuetype (frame->api_method->klass)) {
  			if (!sig->hasthis) {
  				MonoObject *p = NULL;
  				buffer_add_value (buf, mono_get_object_type (), &p, frame->de.domain);
  			} else {
  				if (frame->de.ji->is_interp) {
  					guint8 *addr;
  
  					addr = (guint8*)mini_get_interp_callbacks ()->frame_get_this (frame->interp_frame);
  
  					buffer_add_value_full (buf, m_class_get_this_arg (frame->actual_method->klass), addr, frame->de.domain, FALSE, NULL, 1);
  				} else {
  					add_var (buf, jit, m_class_get_this_arg (frame->actual_method->klass), jit->this_var, &frame->ctx, frame->de.domain, TRUE);
  				}
  			}
  		} else {
  			if (!sig->hasthis) {
  				MonoObject *p = NULL;
  				buffer_add_value (buf, m_class_get_byval_arg (frame->actual_method->klass), &p, frame->de.domain);
  			} else {
  				if (frame->de.ji->is_interp) {
  					guint8 *addr;
  
  					addr = (guint8*)mini_get_interp_callbacks ()->frame_get_this (frame->interp_frame);
  
  					buffer_add_value_full (buf, m_class_get_byval_arg (frame->api_method->klass), addr, frame->de.domain, FALSE, NULL, 1);
  				} else {
  					add_var (buf, jit, m_class_get_byval_arg (frame->api_method->klass), jit->this_var, &frame->ctx, frame->de.domain, TRUE);
  				}
  			}
  		}
  		break;
  	}
  	case CMD_STACK_FRAME_SET_VALUES: {
  		ERROR_DECL (error);
  		guint8 *val_buf;
  		MonoType *t;
  		MonoDebugVarInfo *var = NULL;
  		gboolean is_arg = FALSE;
  
  		len = decode_int (p, &p, end);
  		header = mono_method_get_header_checked (frame->actual_method, error);
  		mono_error_assert_ok (error); /* FIXME report error */
  
  		for (i = 0; i < len; ++i) {
  			pos = decode_int (p, &p, end);
  
  			if (pos < 0) {
  				pos = - pos - 1;
  
  				g_assert (pos >= 0 && pos < jit->num_params);
  
  				t = sig->params [pos];
  				var = &jit->params [pos];
  				is_arg = TRUE;
  			} else {
  				MonoDebugLocalsInfo *locals;
  
  				locals = mono_debug_lookup_locals (frame->de.method);
  				if (locals) {
  					g_assert (pos < locals->num_locals);
  					pos = locals->locals [pos].index;
  					mono_debug_free_locals (locals);
  				}
  				g_assert (pos >= 0 && pos < jit->num_locals);
  
  				t = header->locals [pos];
  				var = &jit->locals [pos];
  			}
  
  			if (MONO_TYPE_IS_REFERENCE (t))
  				val_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
  			else
  				val_buf = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type_internal (t)));
  			err = decode_value (t, frame->de.domain, val_buf, p, &p, end, TRUE);
  			if (err != ERR_NONE)
  				return err;
  
  			if (frame->de.ji->is_interp) {
  				guint8 *addr;
  
  				if (is_arg)
  					addr = (guint8*)mini_get_interp_callbacks ()->frame_get_arg (frame->interp_frame, pos);
  				else
  					addr = (guint8*)mini_get_interp_callbacks ()->frame_get_local (frame->interp_frame, pos);
  				set_interp_var (t, addr, val_buf);
  			} else {
  				set_var (t, var, &frame->ctx, frame->de.domain, val_buf, frame->reg_locations, &tls->restore_state.ctx);
  			}
  		}
  		mono_metadata_free_mh (header);
  		break;
  	}
  	case CMD_STACK_FRAME_GET_DOMAIN: {
  		if (CHECK_PROTOCOL_VERSION (2, 38))
  			buffer_add_domainid (buf, frame->de.domain);
  		break;
  	}
  	case CMD_STACK_FRAME_SET_THIS: {
  		guint8 *val_buf;
  		MonoType *t;
  		MonoDebugVarInfo *var;
  
  		t = m_class_get_byval_arg (frame->actual_method->klass);
  		/* Checked by the sender */
  		g_assert (MONO_TYPE_ISSTRUCT (t));
  
  		val_buf = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type_internal (t)));
  		err = decode_value (t, frame->de.domain, val_buf, p, &p, end, TRUE);
  		if (err != ERR_NONE)
  			return err;
  
  		if (frame->de.ji->is_interp) {
  			guint8 *addr;
  
  			addr = (guint8*)mini_get_interp_callbacks ()->frame_get_this (frame->interp_frame);
  			set_interp_var (m_class_get_this_arg (frame->actual_method->klass), addr, val_buf);
  		} else {
  			var = jit->this_var;
  			if (!var) {
  				add_error_string (buf, "Invalid this object");
  				return ERR_INVALID_ARGUMENT;
  			}
  
  			set_var (m_class_get_this_arg (frame->actual_method->klass), var, &frame->ctx, frame->de.domain, val_buf, frame->reg_locations, &tls->restore_state.ctx);
  		}
  		break;
  	}
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  array_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	MonoArray *arr;
  	int objid, index, len, i, esize;
  	ErrorCode err;
  	gpointer elem;
  
  	objid = decode_objid (p, &p, end);
  	err = get_object (objid, (MonoObject**)&arr);
  	if (err != ERR_NONE)
  		return err;
  
  	switch (command) {
  	case CMD_ARRAY_REF_GET_LENGTH:
  		buffer_add_int (buf, m_class_get_rank (arr->obj.vtable->klass));
  		if (!arr->bounds) {
  			buffer_add_int (buf, arr->max_length);
  			buffer_add_int (buf, 0);
  		} else {
  			for (i = 0; i < m_class_get_rank (arr->obj.vtable->klass); ++i) {
  				buffer_add_int (buf, arr->bounds [i].length);
  				buffer_add_int (buf, arr->bounds [i].lower_bound);
  			}
  		}
  		break;
  	case CMD_ARRAY_REF_GET_VALUES:
  		index = decode_int (p, &p, end);
  		len = decode_int (p, &p, end);
  
  		if (index < 0 || len < 0)
  			return ERR_INVALID_ARGUMENT;
  		// Reordered to avoid integer overflow
  		if (index > arr->max_length - len)
  			return ERR_INVALID_ARGUMENT;
  
  		esize = mono_array_element_size (arr->obj.vtable->klass);
  		for (i = index; i < index + len; ++i) {
  			elem = (gpointer*)((char*)arr->vector + (i * esize));
  			buffer_add_value (buf, m_class_get_byval_arg (m_class_get_element_class (arr->obj.vtable->klass)), elem, arr->obj.vtable->domain);
  		}
  		break;
  	case CMD_ARRAY_REF_SET_VALUES:
  		index = decode_int (p, &p, end);
  		len = decode_int (p, &p, end);
  
  		if (index < 0 || len < 0)
  			return ERR_INVALID_ARGUMENT;
  		// Reordered to avoid integer overflow
  		if (index > arr->max_length - len)
  			return ERR_INVALID_ARGUMENT;
  
  		esize = mono_array_element_size (arr->obj.vtable->klass);
  		for (i = index; i < index + len; ++i) {
  			elem = (gpointer*)((char*)arr->vector + (i * esize));
  
  			decode_value (m_class_get_byval_arg (m_class_get_element_class (arr->obj.vtable->klass)), arr->obj.vtable->domain, (guint8 *)elem, p, &p, end, TRUE);
  		}
  		break;
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  string_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	int objid;
  	ErrorCode err;
  	MonoString *str;
  	char *s;
  	int i, index, length;
  	gunichar2 *c;
  	gboolean use_utf16 = FALSE;
  
  	objid = decode_objid (p, &p, end);
  	err = get_object (objid, (MonoObject**)&str);
  	if (err != ERR_NONE)
  		return err;
  
  	switch (command) {
  	case CMD_STRING_REF_GET_VALUE:
  		if (CHECK_PROTOCOL_VERSION (2, 41)) {
  			for (i = 0; i < mono_string_length_internal (str); ++i)
  				if (mono_string_chars_internal (str)[i] == 0)
  					use_utf16 = TRUE;
  			buffer_add_byte (buf, use_utf16 ? 1 : 0);
  		}
  		if (use_utf16) {
  			buffer_add_int (buf, mono_string_length_internal (str) * 2);
  			buffer_add_utf16 (buf, (guint8*)mono_string_chars_internal (str), mono_string_length_internal (str) * 2);
  		} else {
  			ERROR_DECL (error);
  			s = mono_string_to_utf8_checked_internal (str, error);
  			if (!is_ok (error)) {
  				if (s)
  					g_free (s);
  				add_error_string (buf, mono_error_get_message (error));
  				return ERR_INVALID_ARGUMENT;
  			}
  			buffer_add_string (buf, s);
  			g_free (s);
  		}
  		break;
  	case CMD_STRING_REF_GET_LENGTH:
  		buffer_add_long (buf, mono_string_length_internal (str));
  		break;
  	case CMD_STRING_REF_GET_CHARS:
  		index = decode_long (p, &p, end);
  		length = decode_long (p, &p, end);
  		if (index > mono_string_length_internal (str) - length)
  			return ERR_INVALID_ARGUMENT;
  		c = mono_string_chars_internal (str) + index;
  		for (i = 0; i < length; ++i)
  			buffer_add_short (buf, c [i]);
  		break;
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static void 
  create_file_to_check_memory_address (void) 
  {
  	if (file_check_valid_memory != -1)
  		return;
  	char *file_name = g_strdup_printf ("debugger_check_valid_memory.%d", getpid());
  	filename_check_valid_memory = g_build_filename (g_get_tmp_dir (), file_name, (const char*)NULL);
  	file_check_valid_memory = open(filename_check_valid_memory, O_CREAT | O_WRONLY | O_APPEND, S_IWUSR);
  	g_free (file_name);
  }
  
  static gboolean 
  valid_memory_address (gpointer addr, gint size)
  {
  #ifndef _MSC_VER
  	gboolean ret = TRUE;
  	create_file_to_check_memory_address ();
  	if(file_check_valid_memory < 0) {
  		return TRUE;
  	}
  	write (file_check_valid_memory,  (gpointer)addr, 1);
  	if (errno == EFAULT) {
  		ret = FALSE;
  	}
  #else
  	int i = 0;
  	gboolean ret = FALSE;
  	__try {
  		for (i = 0; i < size; i++)
  			*((volatile char*)addr+i);
  		ret = TRUE;
  	} __except(1) {
  		return ret;
  	}
  #endif	
  	return ret;
  }
  
  static ErrorCode
  pointer_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	ErrorCode err;
  	gint64 addr;
  	MonoClass* klass;
  	MonoDomain* domain = NULL;
  	MonoType *type = NULL;
  	int align;
  	int size = 0;
  
  	switch (command) {
  	case CMD_POINTER_GET_VALUE:
  		addr = decode_long (p, &p, end);
  		klass = decode_typeid (p, &p, end, &domain, &err);
  		if (err != ERR_NONE)
  			return err;
  
  		if (m_class_get_byval_arg (klass)->type != MONO_TYPE_PTR)
  			return ERR_INVALID_ARGUMENT;
  
  		type =  m_class_get_byval_arg (m_class_get_element_class (klass));
  		size = mono_type_size (type, &align);
  		
  		if (!valid_memory_address((gpointer)addr, size))
  			return ERR_INVALID_ARGUMENT;
  
  		buffer_add_value (buf, type, (gpointer)addr, domain);
  
  		break;
  	default:
  		return ERR_NOT_IMPLEMENTED;
  	}
  
  	return ERR_NONE;
  }
  
  static ErrorCode
  object_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
  {
  	HANDLE_FUNCTION_ENTER ();
  
  	ERROR_DECL (error);
  	int objid;
  	ErrorCode err;
  	MonoObject *obj;
  	int len, i;
  	MonoClassField *f;
  	MonoClass *k;
  	gboolean found;
  	gboolean remote_obj = FALSE;
  	MonoStringHandle string_handle = MONO_HANDLE_NEW (MonoString, NULL); // FIXME? Not always needed.
  
  	if (command == CMD_OBJECT_REF_IS_COLLECTED) {
  		objid = decode_objid (p, &p, end);
  		err = get_object (objid, &obj);
  		if (err != ERR_NONE)
  			buffer_add_int (buf, 1);
  		else
  			buffer_add_int (buf, 0);
  		err = ERR_NONE;
  		goto exit;
  	}
  
  	objid = decode_objid (p, &p, end);
  	err = get_object (objid, &obj);
  	if (err != ERR_NONE)
  		goto exit;
  
  	MonoClass *obj_type;
  
  	obj_type = obj->vtable->klass;
  	if (mono_class_is_transparent_proxy (obj_type)) {
  		obj_type = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
  		remote_obj = TRUE;
  	}
  
  	g_assert (obj_type);
  
  	switch (command) {
  	case CMD_OBJECT_REF_GET_TYPE:
  		/* This handles transparent proxies too */
  		buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type_internal (((MonoReflectionType*)obj->vtable->type)->type));
  		break;
  	case CMD_OBJECT_REF_GET_VALUES:
  		len = decode_int (p, &p, end);
  
  		for (i = 0; i < len; ++i) {
  			MonoClassField *f = decode_fieldid (p, &p, end, NULL, &err);
  			if (err != ERR_NONE)
  				goto exit;
  
  			/* Check that the field belongs to the object */
  			found = FALSE;
  			for (k = obj_type; k; k = m_class_get_parent (k)) {
  				if (k == f->parent) {
  					found = TRUE;
  					break;
  				}
  			}
  			if (!found)
  				goto invalid_fieldid;
  
  			if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
  				guint8 *val;
  				MonoVTable *vtable;
  
  				if (mono_class_field_is_special_static (f))
  					goto invalid_fieldid;
  
  				g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
  				vtable = mono_class_vtable_checked (obj->vtable->domain, f->parent, error);
  				if (!is_ok (error)) {
  					mono_error_cleanup (error);
  					goto invalid_object;
  				}
  				val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type_internal (f->type)));
  				mono_field_static_get_value_checked (vtable, f, val, string_handle, error);
  				if (!is_ok (error)) {
  					mono_error_cleanup (error); /* FIXME report the error */
  					goto invalid_object;
  				}
  				buffer_add_value (buf, f->type, val, obj->vtable->domain);
  				g_free (val);
  			} else {
  				void *field_value = NULL;
  #ifndef DISABLE_REMOTING
  				void *field_storage = NULL;
  #endif
  				if (remote_obj) {
  #ifndef DISABLE_REMOTING
  					field_value = mono_load_remote_field_checked(obj, obj_type, f, &field_storage, error);
  					if (!is_ok (error)) {
  						mono_error_cleanup (error); /* FIXME report the error */
  						goto invalid_object;
  					}
  #else
  					g_assert_not_reached ();
  #endif
  				} else
  					field_value = (guint8*)obj + f->offset;
  
  				buffer_add_value (buf, f->type, field_value, obj->vtable->domain);
  			}
  		}
  		break;
  	case CMD_OBJECT_REF_SET_VALUES:
  		len = decode_int (p, &p, end);
  
  		for (i = 0; i < len; ++i) {
  			f = decode_fieldid (p, &p, end, NULL, &err);
  			if (err != ERR_NONE)
  				goto exit;
  
  			/* Check that the field belongs to the object */
  			found = FALSE;
  			for (k = obj_type; k; k = m_class_get_parent (k)) {
  				if (k == f->parent) {
  					found = TRUE;
  					break;
  				}
  			}
  			if (!found)
  				goto invalid_fieldid;
  
  			if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
  				guint8 *val;
  				MonoVTable *vtable;
  
  				if (mono_class_field_is_special_static (f))
  					goto invalid_fieldid;
  
  				g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
  				vtable = mono_class_vtable_checked (obj->vtable->domain, f->parent, error);
  				if (!is_ok (error)) {
  					mono_error_cleanup (error);
  					goto invalid_fieldid;
  				}
  
  				val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type_internal (f->type)));
  				err = decode_value (f->type, obj->vtable->domain, val, p, &p, end, TRUE);
  				if (err != ERR_NONE) {
  					g_free (val);
  					goto exit;
  				}
  				mono_field_static_set_value_internal (vtable, f, val);
  				g_free (val);
  			} else {
  				err = decode_value (f->type, obj->vtable->domain, (guint8*)obj + f->offset, p, &p, end, TRUE);
  				if (err != ERR_NONE)
  					goto exit;
  			}
  		}
  		break;
  	case CMD_OBJECT_REF_GET_ADDRESS:
  		buffer_add_long (buf, (gssize)obj);
  		break;
  	case CMD_OBJECT_REF_GET_DOMAIN:
  		buffer_add_domainid (buf, obj->vtable->domain);
  		break;
  	case CMD_OBJECT_REF_GET_INFO:
  		buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type_internal (((MonoReflectionType*)obj->vtable->type)->type));
  		buffer_add_domainid (buf, obj->vtable->domain);
  		break;
  	default:
  		err = ERR_NOT_IMPLEMENTED;
  		goto exit;
  	}
  
  	err = ERR_NONE;
  	goto exit;
  invalid_fieldid:
  	err = ERR_INVALID_FIELDID;
  	goto exit;
  invalid_object:
  	err = ERR_INVALID_OBJECT;
  	goto exit;
  exit:
  	HANDLE_FUNCTION_RETURN_VAL (err);
  }
  
  static const char*
  command_set_to_string (CommandSet command_set)
  {
  	switch (command_set) {
  	case CMD_SET_VM:
  		return "VM";
  	case CMD_SET_OBJECT_REF:
  		return "OBJECT_REF";
  	case CMD_SET_STRING_REF:
  		return "STRING_REF";
  	case CMD_SET_THREAD:
  		return "THREAD";
  	case CMD_SET_ARRAY_REF:
  		return "ARRAY_REF";
  	case CMD_SET_EVENT_REQUEST:
  		return "EVENT_REQUEST";
  	case CMD_SET_STACK_FRAME:
  		return "STACK_FRAME";
  	case CMD_SET_APPDOMAIN:
  		return "APPDOMAIN";
  	case CMD_SET_ASSEMBLY:
  		return "ASSEMBLY";
  	case CMD_SET_METHOD:
  		return "METHOD";
  	case CMD_SET_TYPE:
  		return "TYPE";
  	case CMD_SET_MODULE:
  		return "MODULE";
  	case CMD_SET_FIELD:
  		return "FIELD";
  	case CMD_SET_EVENT:
  		return "EVENT";
  	case CMD_SET_POINTER:
  		return "POINTER";
  	default:
  		return "";
  	}
  }
  
  static const char* vm_cmds_str [] = {
  	"VERSION",
  	"ALL_THREADS",
  	"SUSPEND",
  	"RESUME",
  	"EXIT",
  	"DISPOSE",
  	"INVOKE_METHOD",
  	"SET_PROTOCOL_VERSION",
  	"ABORT_INVOKE",
  	"SET_KEEPALIVE"
  	"GET_TYPES_FOR_SOURCE_FILE",
  	"GET_TYPES",
  	"INVOKE_METHODS"
  };
  
  static const char* thread_cmds_str[] = {
  	"GET_FRAME_INFO",
  	"GET_NAME",
  	"GET_STATE",
  	"GET_INFO",
  	"GET_ID",
  	"GET_TID",
  	"SET_IP"
  };
  
  static const char* event_cmds_str[] = {
  	"REQUEST_SET",
  	"REQUEST_CLEAR",
  	"REQUEST_CLEAR_ALL_BREAKPOINTS"
  };
  
  static const char* appdomain_cmds_str[] = {
  	"GET_ROOT_DOMAIN",
  	"GET_FRIENDLY_NAME",
  	"GET_ASSEMBLIES",
  	"GET_ENTRY_ASSEMBLY",
  	"CREATE_STRING",
  	"GET_CORLIB",
  	"CREATE_BOXED_VALUE",
  	"CREATE_BYTE_ARRAY",
  };
  
  static const char* assembly_cmds_str[] = {
  	"GET_LOCATION",
  	"GET_ENTRY_POINT",
  	"GET_MANIFEST_MODULE",
  	"GET_OBJECT",
  	"GET_TYPE",
  	"GET_NAME",
  	"GET_DOMAIN",
  	"HAS_DEBUG_INFO"
  };
  
  static const char* module_cmds_str[] = {
  	"GET_INFO",
  };
  
  static const char* field_cmds_str[] = {
  	"GET_INFO",
  };
  
  static const char* method_cmds_str[] = {
  	"GET_NAME",
  	"GET_DECLARING_TYPE",
  	"GET_DEBUG_INFO",
  	"GET_PARAM_INFO",
  	"GET_LOCALS_INFO",
  	"GET_INFO",
  	"GET_BODY",
  	"RESOLVE_TOKEN",
  	"GET_CATTRS ",
  	"MAKE_GENERIC_METHOD"
  };
  
  static const char* type_cmds_str[] = {
  	"GET_INFO",
  	"GET_METHODS",
  	"GET_FIELDS",
  	"GET_VALUES",
  	"GET_OBJECT",
  	"GET_SOURCE_FILES",
  	"SET_VALUES",
  	"IS_ASSIGNABLE_FROM",
  	"GET_PROPERTIES ",
  	"GET_CATTRS",
  	"GET_FIELD_CATTRS",
  	"GET_PROPERTY_CATTRS",
  	"GET_SOURCE_FILES_2",
  	"GET_VALUES_2",
  	"GET_METHODS_BY_NAME_FLAGS",
  	"GET_INTERFACES",
  	"GET_INTERFACE_MAP",
  	"IS_INITIALIZED",
  	"CREATE_INSTANCE",
  	"GET_VALUE_SIZE"
  };
  
  static const char* stack_frame_cmds_str[] = {
  	"GET_VALUES",
  	"GET_THIS",
  	"SET_VALUES",
  	"GET_DOMAIN",
  	"SET_THIS"
  };
  
  static const char* array_cmds_str[] = {
  	"GET_LENGTH",
  	"GET_VALUES",
  	"SET_VALUES",
  };
  
  static const char* string_cmds_str[] = {
  	"GET_VALUE",
  	"GET_LENGTH",
  	"GET_CHARS"
  };
  
  static const char* pointer_cmds_str[] = {
  	"GET_VALUE"
  };
  
  static const char* object_cmds_str[] = {
  	"GET_TYPE",
  	"GET_VALUES",
  	"IS_COLLECTED",
  	"GET_ADDRESS",
  	"GET_DOMAIN",
  	"SET_VALUES",
  	"GET_INFO",
  };
  
  static const char*
  cmd_to_string (CommandSet set, int command)
  {
  	const char **cmds;
  	int cmds_len = 0;
  
  	switch (set) {
  	case CMD_SET_VM:
  		cmds = vm_cmds_str;
  		cmds_len = G_N_ELEMENTS (vm_cmds_str);
  		break;
  	case CMD_SET_OBJECT_REF:
  		cmds = object_cmds_str;
  		cmds_len = G_N_ELEMENTS (object_cmds_str);
  		break;
  	case CMD_SET_STRING_REF:
  		cmds = string_cmds_str;
  		cmds_len = G_N_ELEMENTS (string_cmds_str);
  		break;
  	case CMD_SET_THREAD:
  		cmds = thread_cmds_str;
  		cmds_len = G_N_ELEMENTS (thread_cmds_str);
  		break;
  	case CMD_SET_ARRAY_REF:
  		cmds = array_cmds_str;
  		cmds_len = G_N_ELEMENTS (array_cmds_str);
  		break;
  	case CMD_SET_EVENT_REQUEST:
  		cmds = event_cmds_str;
  		cmds_len = G_N_ELEMENTS (event_cmds_str);
  		break;
  	case CMD_SET_STACK_FRAME:
  		cmds = stack_frame_cmds_str;
  		cmds_len = G_N_ELEMENTS (stack_frame_cmds_str);
  		break;
  	case CMD_SET_APPDOMAIN:
  		cmds = appdomain_cmds_str;
  		cmds_len = G_N_ELEMENTS (appdomain_cmds_str);
  		break;
  	case CMD_SET_ASSEMBLY:
  		cmds = assembly_cmds_str;
  		cmds_len = G_N_ELEMENTS (assembly_cmds_str);
  		break;
  	case CMD_SET_METHOD:
  		cmds = method_cmds_str;
  		cmds_len = G_N_ELEMENTS (method_cmds_str);
  		break;
  	case CMD_SET_TYPE:
  		cmds = type_cmds_str;
  		cmds_len = G_N_ELEMENTS (type_cmds_str);
  		break;
  	case CMD_SET_MODULE:
  		cmds = module_cmds_str;
  		cmds_len = G_N_ELEMENTS (module_cmds_str);
  		break;
  	case CMD_SET_FIELD:
  		cmds = field_cmds_str;
  		cmds_len = G_N_ELEMENTS (field_cmds_str);
  		break;
  	case CMD_SET_EVENT:
  		cmds = event_cmds_str;
  		cmds_len = G_N_ELEMENTS (event_cmds_str);
  		break;
  	case CMD_SET_POINTER:
  		cmds = pointer_cmds_str;
  		cmds_len = G_N_ELEMENTS (pointer_cmds_str);
  		break;
  	default:
  		return NULL;
  	}
  	if (command > 0 && command <= cmds_len)
  		return cmds [command - 1];
  	else
  		return NULL;
  }
  
  static gboolean
  wait_for_attach (void)
  {
  #ifndef DISABLE_SOCKET_TRANSPORT
  	if (listen_fd == -1) {
  		DEBUG_PRINTF (1, "[dbg] Invalid listening socket\n");
  		return FALSE;
  	}
  
  	/* Block and wait for client connection */
  	conn_fd = socket_transport_accept (listen_fd);
  
  	DEBUG_PRINTF (1, "Accepted connection on %d\n", conn_fd);
  	if (conn_fd == -1) {
  		DEBUG_PRINTF (1, "[dbg] Bad client connection\n");
  		return FALSE;
  	}
  #else
  	g_assert_not_reached ();
  #endif
  
  	/* Handshake */
  	disconnected = !transport_handshake ();
  	if (disconnected) {
  		DEBUG_PRINTF (1, "Transport handshake failed!\n");
  		return FALSE;
  	}
  	
  	return TRUE;
  }
  
  /*
   * debugger_thread:
   *
   *   This thread handles communication with the debugger client using a JDWP
   * like protocol.
   */
  static gsize WINAPI
  debugger_thread (void *arg)
  {
  	int res, len, id, flags, command = 0;
  	CommandSet command_set = (CommandSet)0;
  	guint8 header [HEADER_LENGTH];
  	guint8 *data, *p, *end;
  	Buffer buf;
  	ErrorCode err;
  	gboolean no_reply;
  	gboolean attach_failed = FALSE;
  
  	DEBUG_PRINTF (1, "[dbg] Agent thread started, pid=%p\n", (gpointer) (gsize) mono_native_thread_id_get ());
  
  	gboolean log_each_step = g_hasenv ("MONO_DEBUGGER_LOG_AFTER_COMMAND");
  
  	debugger_thread_id = mono_native_thread_id_get ();
  
  	MonoInternalThread *internal = mono_thread_internal_current ();
  	mono_thread_set_name_constant_ignore_error (internal, "Debugger agent", MonoSetThreadNameFlag_Permanent);
  
  	internal->state |= ThreadState_Background;
  	internal->flags |= MONO_THREAD_FLAG_DONT_MANAGE;
  
  	if (agent_config.defer) {
  		if (!wait_for_attach ()) {
  			DEBUG_PRINTF (1, "[dbg] Can't attach, aborting debugger thread.\n");
  			attach_failed = TRUE; // Don't abort process when we can't listen
  		} else {
  			mono_set_is_debugger_attached (TRUE);
  			/* Send start event to client */
  			process_profiler_event (EVENT_KIND_VM_START, mono_thread_get_main ());
  		}
  	} else {
  		mono_set_is_debugger_attached (TRUE);
  	}
  	
  	while (!attach_failed) {
  		res = transport_recv (header, HEADER_LENGTH);
  
  		/* This will break if the socket is closed during shutdown too */
  		if (res != HEADER_LENGTH) {
  			DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, HEADER_LENGTH);
  			command_set = (CommandSet)0;
  			command = 0;
  			dispose_vm ();
  			break;
  		} else {
  			p = header;
  			end = header + HEADER_LENGTH;
  
  			len = decode_int (p, &p, end);
  			id = decode_int (p, &p, end);
  			flags = decode_byte (p, &p, end);
  			command_set = (CommandSet)decode_byte (p, &p, end);
  			command = decode_byte (p, &p, end);
  		}
  
  		g_assert (flags == 0);
  		const char *cmd_str;
  		char cmd_num [256];
  
  		cmd_str = cmd_to_string (command_set, command);
  		if (!cmd_str) {
  			sprintf (cmd_num, "%d", command);
  			cmd_str = cmd_num;
  		}
  
  		if (log_level) {
  			DEBUG_PRINTF (1, "[dbg] Command %s(%s) [%d][at=%lx].\n", command_set_to_string (command_set), cmd_str, id, (long)mono_100ns_ticks () / 10000);
  		}
  
  		data = (guint8 *)g_malloc (len - HEADER_LENGTH);
  		if (len - HEADER_LENGTH > 0)
  		{
  			res = transport_recv (data, len - HEADER_LENGTH);
  			if (res != len - HEADER_LENGTH) {
  				DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, len - HEADER_LENGTH);
  				break;
  			}
  		}
  
  		p = data;
  		end = data + (len - HEADER_LENGTH);
  
  		buffer_init (&buf, 128);
  
  		err = ERR_NONE;
  		no_reply = FALSE;
  
  		/* Process the request */
  		switch (command_set) {
  		case CMD_SET_VM:
  			err = vm_commands (command, id, p, end, &buf);
  			if (err == ERR_NONE && command == CMD_VM_INVOKE_METHOD)
  				/* Sent after the invoke is complete */
  				no_reply = TRUE;
  			break;
  		case CMD_SET_EVENT_REQUEST:
  			err = event_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_APPDOMAIN:
  			err = domain_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_ASSEMBLY:
  			err = assembly_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_MODULE:
  			err = module_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_FIELD:
  			err = field_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_TYPE:
  			err = type_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_METHOD:
  			err = method_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_THREAD:
  			err = thread_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_STACK_FRAME:
  			err = frame_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_ARRAY_REF:
  			err = array_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_STRING_REF:
  			err = string_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_POINTER:
  			err = pointer_commands (command, p, end, &buf);
  			break;
  		case CMD_SET_OBJECT_REF:
  			err = object_commands (command, p, end, &buf);
  			break;
  		default:
  			err = ERR_NOT_IMPLEMENTED;
  		}		
  
  		if (command_set == CMD_SET_VM && command == CMD_VM_START_BUFFERING) {
  			buffer_replies = TRUE;
  		}
  
  		if (!no_reply) {
  			if (buffer_replies) {
  				buffer_reply_packet (id, err, &buf);
  			} else {
  				send_reply_packet (id, err, &buf);
  				//DEBUG_PRINTF (1, "[dbg] Sent reply to %d [at=%lx].\n", id, (long)mono_100ns_ticks () / 10000);
  			}
  		}
  
  		mono_debugger_log_command (command_set_to_string (command_set), cmd_str, buf.buf, buffer_len (&buf));
  
  		if (err == ERR_NONE && command_set == CMD_SET_VM && command == CMD_VM_STOP_BUFFERING) {
  			send_buffered_reply_packets ();
  			buffer_replies = FALSE;
  		}
  
  		g_free (data);
  		buffer_free (&buf);
  
  		if (log_each_step) {
  			char *debugger_log = mono_debugger_state_str ();
  			if (debugger_log) {
  				fprintf (stderr, "Debugger state: %s\n", debugger_log);
  				g_free (debugger_log);
  			}
  		}
  
  		if (command_set == CMD_SET_VM && (command == CMD_VM_DISPOSE || command == CMD_VM_EXIT))
  			break;
  	}
  
  	mono_set_is_debugger_attached (FALSE);
  
  	mono_coop_mutex_lock (&debugger_thread_exited_mutex);
  	debugger_thread_exited = TRUE;
  	mono_coop_cond_signal (&debugger_thread_exited_cond);
  	mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
  
  	DEBUG_PRINTF (1, "[dbg] Debugger thread exited.\n");
  	
  	if (!attach_failed && command_set == CMD_SET_VM && command == CMD_VM_DISPOSE && !(vm_death_event_sent || mono_runtime_is_shutting_down ())) {
  		DEBUG_PRINTF (2, "[dbg] Detached - restarting clean debugger thread.\n");
  		ERROR_DECL (error);
  		start_debugger_thread (error);
  		mono_error_cleanup (error);
  	}
  
  	return 0;
  }
  
  void
  mono_debugger_agent_init (void)
  {
  	MonoDebuggerCallbacks cbs;
  
  	memset (&cbs, 0, sizeof (cbs));
  	cbs.version = MONO_DBG_CALLBACKS_VERSION;
  	cbs.parse_options = debugger_agent_parse_options;
  	cbs.init = debugger_agent_init;
  	cbs.breakpoint_hit = debugger_agent_breakpoint_hit;
  	cbs.single_step_event = debugger_agent_single_step_event;
  	cbs.single_step_from_context = debugger_agent_single_step_from_context;
  	cbs.breakpoint_from_context = debugger_agent_breakpoint_from_context;
  	cbs.free_domain_info = debugger_agent_free_domain_info;
  	cbs.unhandled_exception = debugger_agent_unhandled_exception;
  	cbs.handle_exception = debugger_agent_handle_exception;
  	cbs.begin_exception_filter = debugger_agent_begin_exception_filter;
  	cbs.end_exception_filter = debugger_agent_end_exception_filter;
  	cbs.user_break = debugger_agent_user_break;
  	cbs.debug_log = debugger_agent_debug_log;
  	cbs.debug_log_is_enabled = debugger_agent_debug_log_is_enabled;
  	cbs.send_crash = mono_debugger_agent_send_crash;
  
  	mini_install_dbg_callbacks (&cbs);
  }
  
  void
  mono_debugger_agent_parse_options (char *options)
  {
  	sdb_options = options;
  }
  
  #endif /* DISABLE_SDB */
  