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  // <ORIGINAL-AUTHOR>: Greg Lueck
  // <COMPONENT>: debugger-protocol
  // <FILE-TYPE>: component public header
  
  #ifndef DEBUGGER_PROTOCOL_EVENT_LINUX_HPP
  #define DEBUGGER_PROTOCOL_EVENT_LINUX_HPP
  
  #include "debugger-protocol.hpp"
  #include "fund.hpp"
  
  
  namespace DEBUGGER_PROTOCOL {
  
  /*!
   * The Linux signal numbers.  These are the same values defined in the system <signal.h> header.
   */
  enum LINUX_SIGNAL
  {
      LINUX_SIGNAL_HUP = 1,
      LINUX_SIGNAL_INT = 2,
      LINUX_SIGNAL_QUIT = 3,
      LINUX_SIGNAL_ILL = 4,
      LINUX_SIGNAL_TRAP = 5,
      LINUX_SIGNAL_ABRT = 6,
      LINUX_SIGNAL_BUS = 7,
      LINUX_SIGNAL_FPE = 8,
      LINUX_SIGNAL_KILL = 9,
      LINUX_SIGNAL_USR1 = 10,
      LINUX_SIGNAL_SEGV = 11,
      LINUX_SIGNAL_USR2 = 12,
      LINUX_SIGNAL_PIPE = 13,
      LINUX_SIGNAL_ALRM = 14,
      LINUX_SIGNAL_TERM = 15,
      LINUX_SIGNAL_STKFLT = 16,
      LINUX_SIGNAL_CHLD = 17,
      LINUX_SIGNAL_CONT = 18,
      LINUX_SIGNAL_STOP = 19,
      LINUX_SIGNAL_TSTP = 20,
      LINUX_SIGNAL_TTIN = 21,
      LINUX_SIGNAL_TTOU = 22,
      LINUX_SIGNAL_URG = 23,
      LINUX_SIGNAL_XCPU = 24,
      LINUX_SIGNAL_XFSZ = 25,
      LINUX_SIGNAL_VTALRM = 26,
      LINUX_SIGNAL_PROF = 27,
      LINUX_SIGNAL_WINCH = 28,
      LINUX_SIGNAL_POLL = 29,
      LINUX_SIGNAL_PWR = 30,
      LINUX_SIGNAL_SYS = 31,
      LINUX_SIGNAL_RT32 = 32,
      LINUX_SIGNAL_RT33 = 33,
      LINUX_SIGNAL_RT34 = 34,
      LINUX_SIGNAL_RT35 = 35,
      LINUX_SIGNAL_RT36 = 36,
      LINUX_SIGNAL_RT37 = 37,
      LINUX_SIGNAL_RT38 = 38,
      LINUX_SIGNAL_RT39 = 39,
      LINUX_SIGNAL_RT40 = 40,
      LINUX_SIGNAL_RT41 = 41,
      LINUX_SIGNAL_RT42 = 42,
      LINUX_SIGNAL_RT43 = 43,
      LINUX_SIGNAL_RT44 = 44,
      LINUX_SIGNAL_RT45 = 45,
      LINUX_SIGNAL_RT46 = 46,
      LINUX_SIGNAL_RT47 = 47,
      LINUX_SIGNAL_RT48 = 48,
      LINUX_SIGNAL_RT49 = 49,
      LINUX_SIGNAL_RT50 = 50,
      LINUX_SIGNAL_RT51 = 51,
      LINUX_SIGNAL_RT52 = 52,
      LINUX_SIGNAL_RT53 = 53,
      LINUX_SIGNAL_RT54 = 54,
      LINUX_SIGNAL_RT55 = 55,
      LINUX_SIGNAL_RT56 = 56,
      LINUX_SIGNAL_RT57 = 57,
      LINUX_SIGNAL_RT58 = 58,
      LINUX_SIGNAL_RT59 = 59,
      LINUX_SIGNAL_RT60 = 60,
      LINUX_SIGNAL_RT61 = 61,
      LINUX_SIGNAL_RT62 = 62,
      LINUX_SIGNAL_RT63 = 63
  };
  
  
  #if defined(DEBUGGER_PROTOCOL_BUILD)    // Library clients should NOT define this.
  
  /*!
   * When GDB connects to a Linux process, it expects that these signals are initially not
   * intercepted.  If a back-end connects to a debugger of type FRONTEND_TYPE_GDB, the
   * back-end should arrange for these signals to be handled internally by the process,
   * without notifying GDB.  Note that these are only an initial default setting.  GDB may
   * explicitly ask to intercept these signals later via IEVENT_INTERCEPTION.
   */
  DEBUGGER_PROTOCOL_API EVENT DefaultLinuxSignalsNotInterceptedByGdb[] =
  {
      LINUX_SIGNAL_ALRM,
      LINUX_SIGNAL_URG,
      LINUX_SIGNAL_CHLD,
      LINUX_SIGNAL_VTALRM,
      LINUX_SIGNAL_PROF,
      LINUX_SIGNAL_WINCH,
      LINUX_SIGNAL_POLL,
      LINUX_SIGNAL_RT32,
      LINUX_SIGNAL_RT33
  };
  
  /*!
   * Number of entries in DefaultLinuxSignalsNotInterceptedByGdb.
   */
  DEBUGGER_PROTOCOL_API unsigned DefaultLinuxSignalsNotInterceptedByGdbCount =
      sizeof(DefaultLinuxSignalsNotInterceptedByGdb) / sizeof(DefaultLinuxSignalsNotInterceptedByGdb[0]);
  
  #else
  
  /*!
   * Signals not initially intercepted by GDB.
   */
  DEBUGGER_PROTOCOL_API extern EVENT DefaultLinuxSignalsNotInterceptedByGdb[];
  
  /*!
   * Number entries in DefaultLinuxSignalsNotInterceptedByGdb.
   */
  DEBUGGER_PROTOCOL_API extern unsigned DefaultLinuxSignalsNotInterceptedByGdbCount;
  
  #endif
  
  
  /*!
   * In the future, new fields may be added to the end of the EVENT_INFO_LINUX32
   * or EVENT_INFO_LINUX64 structures.  If this happens, clients can use the
   * \e _version field to retain backward compatibility.
   *
   * When a client writes information to these structures, it should set \e _version
   * to the latest version that it supports.
   *
   * When a client reads these structures, it should use \e _version to tell which
   * fields are valid.  A client should allow that \e _version may be greater than
   * the newest version it knows about, which happens if an older front-end runs
   * with a newer back-end or vice-versa.
   */
  enum EVENT_INFO_LINUX_VERSION
  {
      EVENT_INFO_LINUX_VERSION_0      ///< This is the only defined version currently.
  };
  
  /*!
   * This has the same layout as the 32-bit system siginfo_t.  If you are compiling on that
   * system, you can safely cast to that type.
   */
  struct /*<POD>*/ SIGINFO32
  {
      FUND::INT32 _signo;
      FUND::INT32 _errno;
      FUND::INT32 _code;
  
      union
      {
          FUND::UINT32 _pad[(128 / sizeof(FUND::UINT32)) - 3];    // Total size of SIGINFO32 is 128 bytes
      };
  };
  
  /*!
   * This has the same layout as the 64-bit system siginfo_t.  If you are compiling on that
   * system, you can safely cast to that type.
   */
  struct /*<POD>*/ SIGINFO64
  {
      FUND::INT32 _signo;
      FUND::INT32 _errno;
      FUND::INT32 _code;
      FUND::INT32 _pad0;
  
      union
      {
          FUND::UINT32 _pad1[(128 / sizeof(FUND::UINT32)) - 4];    // Total size of SIGINFO64 is 128 bytes
      };
  };
  
  
  /*!
   * Information about a signal received on a 32-bit Linux target.
   */
  struct /*<POD>*/ EVENT_INFO_LINUX32
  {
      EVENT_INFO_LINUX_VERSION _version;  ///< Tells which fields in this structure are valid.
      SIGINFO32 _siginfo;                 ///< Signal information.
  };
  
  /*!
   * Information about a signal received on a 64-bit Linux target.
   */
  struct /*<POD>*/ EVENT_INFO_LINUX64
  {
      EVENT_INFO_LINUX_VERSION _version;  ///< Tells which fields in this structure are valid.
      SIGINFO64 _siginfo;                 ///< Signal information.
  };
  
  } // namespace
  #endif // file guard
  