text: /* General "disassemble this chunk" code.  Used for debugging. */
  #include "config.h"
  #include "disas/bfd.h"
  #include "elf.h"
  #include <errno.h>
  
  #include "cpu.h"
  #include "disas/disas.h"
  
  typedef struct CPUDebug {
      struct disassemble_info info;
      CPUArchState *env;
  } CPUDebug;
  
  /* Filled in by elfload.c.  Simplistic, but will do for now. */
  struct syminfo *syminfos = NULL;
  
  /* Get LENGTH bytes from info's buffer, at target address memaddr.
     Transfer them to myaddr.  */
  int
  buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length,
                     struct disassemble_info *info)
  {
      if (memaddr < info->buffer_vma
          || memaddr + length > info->buffer_vma + info->buffer_length)
          /* Out of bounds.  Use EIO because GDB uses it.  */
          return EIO;
      memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length);
      return 0;
  }
  
  /* Get LENGTH bytes from info's buffer, at target address memaddr.
     Transfer them to myaddr.  */
  static int
  target_read_memory (bfd_vma memaddr,
                      bfd_byte *myaddr,
                      int length,
                      struct disassemble_info *info)
  {
      CPUDebug *s = container_of(info, CPUDebug, info);
  
      cpu_memory_rw_debug(ENV_GET_CPU(s->env), memaddr, myaddr, length, 0);
      return 0;
  }
  
  /* Print an error message.  We can assume that this is in response to
     an error return from buffer_read_memory.  */
  void
  perror_memory (int status, bfd_vma memaddr, struct disassemble_info *info)
  {
    if (status != EIO)
      /* Can't happen.  */
      (*info->fprintf_func) (info->stream, "Unknown error %d\n", status);
    else
      /* Actually, address between memaddr and memaddr + len was
         out of bounds.  */
      (*info->fprintf_func) (info->stream,
  			   "Address 0x%" PRIx64 " is out of bounds.\n", memaddr);
  }
  
  /* This could be in a separate file, to save minuscule amounts of space
     in statically linked executables.  */
  
  /* Just print the address is hex.  This is included for completeness even
     though both GDB and objdump provide their own (to print symbolic
     addresses).  */
  
  void
  generic_print_address (bfd_vma addr, struct disassemble_info *info)
  {
      (*info->fprintf_func) (info->stream, "0x%" PRIx64, addr);
  }
  
  /* Print address in hex, truncated to the width of a target virtual address. */
  static void
  generic_print_target_address(bfd_vma addr, struct disassemble_info *info)
  {
      uint64_t mask = ~0ULL >> (64 - TARGET_VIRT_ADDR_SPACE_BITS);
      generic_print_address(addr & mask, info);
  }
  
  /* Print address in hex, truncated to the width of a host virtual address. */
  static void
  generic_print_host_address(bfd_vma addr, struct disassemble_info *info)
  {
      uint64_t mask = ~0ULL >> (64 - (sizeof(void *) * 8));
      generic_print_address(addr & mask, info);
  }
  
  /* Just return the given address.  */
  
  int
  generic_symbol_at_address (bfd_vma addr, struct disassemble_info *info)
  {
    return 1;
  }
  
  bfd_vma bfd_getl64 (const bfd_byte *addr)
  {
    unsigned long long v;
  
    v = (unsigned long long) addr[0];
    v |= (unsigned long long) addr[1] << 8;
    v |= (unsigned long long) addr[2] << 16;
    v |= (unsigned long long) addr[3] << 24;
    v |= (unsigned long long) addr[4] << 32;
    v |= (unsigned long long) addr[5] << 40;
    v |= (unsigned long long) addr[6] << 48;
    v |= (unsigned long long) addr[7] << 56;
    return (bfd_vma) v;
  }
  
  bfd_vma bfd_getl32 (const bfd_byte *addr)
  {
    unsigned long v;
  
    v = (unsigned long) addr[0];
    v |= (unsigned long) addr[1] << 8;
    v |= (unsigned long) addr[2] << 16;
    v |= (unsigned long) addr[3] << 24;
    return (bfd_vma) v;
  }
  
  bfd_vma bfd_getb32 (const bfd_byte *addr)
  {
    unsigned long v;
  
    v = (unsigned long) addr[0] << 24;
    v |= (unsigned long) addr[1] << 16;
    v |= (unsigned long) addr[2] << 8;
    v |= (unsigned long) addr[3];
    return (bfd_vma) v;
  }
  
  bfd_vma bfd_getl16 (const bfd_byte *addr)
  {
    unsigned long v;
  
    v = (unsigned long) addr[0];
    v |= (unsigned long) addr[1] << 8;
    return (bfd_vma) v;
  }
  
  bfd_vma bfd_getb16 (const bfd_byte *addr)
  {
    unsigned long v;
  
    v = (unsigned long) addr[0] << 24;
    v |= (unsigned long) addr[1] << 16;
    return (bfd_vma) v;
  }
  
  #ifdef TARGET_ARM
  static int
  print_insn_thumb1(bfd_vma pc, disassemble_info *info)
  {
    return print_insn_arm(pc | 1, info);
  }
  #endif
  
  static int print_insn_objdump(bfd_vma pc, disassemble_info *info,
                                const char *prefix)
  {
      int i, n = info->buffer_length;
      uint8_t *buf = g_malloc(n);
  
      info->read_memory_func(pc, buf, n, info);
  
      for (i = 0; i < n; ++i) {
          if (i % 32 == 0) {
              info->fprintf_func(info->stream, "\n%s: ", prefix);
          }
          info->fprintf_func(info->stream, "%02x", buf[i]);
      }
  
      g_free(buf);
      return n;
  }
  
  static int print_insn_od_host(bfd_vma pc, disassemble_info *info)
  {
      return print_insn_objdump(pc, info, "OBJD-H");
  }
  
  static int print_insn_od_target(bfd_vma pc, disassemble_info *info)
  {
      return print_insn_objdump(pc, info, "OBJD-T");
  }
  
  /* Disassemble this for me please... (debugging). 'flags' has the following
     values:
      i386 - 1 means 16 bit code, 2 means 64 bit code
      arm  - bit 0 = thumb, bit 1 = reverse endian, bit 2 = A64
      ppc  - bits 0:15 specify (optionally) the machine instruction set;
             bit 16 indicates little endian.
      other targets - unused
   */
  void target_disas(FILE *out, CPUArchState *env, target_ulong code,
                    target_ulong size, int flags)
  {
      target_ulong pc;
      int count;
      CPUDebug s;
      int (*print_insn)(bfd_vma pc, disassemble_info *info) = NULL;
  
      INIT_DISASSEMBLE_INFO(s.info, out, fprintf);
  
      s.env = env;
      s.info.read_memory_func = target_read_memory;
      s.info.buffer_vma = code;
      s.info.buffer_length = size;
      s.info.print_address_func = generic_print_target_address;
  
  #ifdef TARGET_WORDS_BIGENDIAN
      s.info.endian = BFD_ENDIAN_BIG;
  #else
      s.info.endian = BFD_ENDIAN_LITTLE;
  #endif
  #if defined(TARGET_I386)
      if (flags == 2) {
          s.info.mach = bfd_mach_x86_64;
      } else if (flags == 1) {
          s.info.mach = bfd_mach_i386_i8086;
      } else {
          s.info.mach = bfd_mach_i386_i386;
      }
      print_insn = print_insn_i386;
  #elif defined(TARGET_ARM)
      if (flags & 4) {
          /* We might not be compiled with the A64 disassembler
           * because it needs a C++ compiler; in that case we will
           * fall through to the default print_insn_od case.
           */
  #if defined(CONFIG_ARM_A64_DIS)
          print_insn = print_insn_arm_a64;
  #endif
      } else if (flags & 1) {
          print_insn = print_insn_thumb1;
      } else {
          print_insn = print_insn_arm;
      }
      if (flags & 2) {
  #ifdef TARGET_WORDS_BIGENDIAN
          s.info.endian = BFD_ENDIAN_LITTLE;
  #else
          s.info.endian = BFD_ENDIAN_BIG;
  #endif
      }
  #elif defined(TARGET_SPARC)
      print_insn = print_insn_sparc;
  #ifdef TARGET_SPARC64
      s.info.mach = bfd_mach_sparc_v9b;
  #endif
  #elif defined(TARGET_PPC)
      if ((flags >> 16) & 1) {
          s.info.endian = BFD_ENDIAN_LITTLE;
      }
      if (flags & 0xFFFF) {
          /* If we have a precise definition of the instruction set, use it. */
          s.info.mach = flags & 0xFFFF;
      } else {
  #ifdef TARGET_PPC64
          s.info.mach = bfd_mach_ppc64;
  #else
          s.info.mach = bfd_mach_ppc;
  #endif
      }
      s.info.disassembler_options = (char *)"any";
      print_insn = print_insn_ppc;
  #elif defined(TARGET_M68K)
      print_insn = print_insn_m68k;
  #elif defined(TARGET_MIPS)
  #ifdef TARGET_WORDS_BIGENDIAN
      print_insn = print_insn_big_mips;
  #else
      print_insn = print_insn_little_mips;
  #endif
  #elif defined(TARGET_SH4)
      s.info.mach = bfd_mach_sh4;
      print_insn = print_insn_sh;
  #elif defined(TARGET_ALPHA)
      s.info.mach = bfd_mach_alpha_ev6;
      print_insn = print_insn_alpha;
  #elif defined(TARGET_CRIS)
      if (flags != 32) {
          s.info.mach = bfd_mach_cris_v0_v10;
          print_insn = print_insn_crisv10;
      } else {
          s.info.mach = bfd_mach_cris_v32;
          print_insn = print_insn_crisv32;
      }
  #elif defined(TARGET_S390X)
      s.info.mach = bfd_mach_s390_64;
      print_insn = print_insn_s390;
  #elif defined(TARGET_MICROBLAZE)
      s.info.mach = bfd_arch_microblaze;
      print_insn = print_insn_microblaze;
  #elif defined(TARGET_MOXIE)
      s.info.mach = bfd_arch_moxie;
      print_insn = print_insn_moxie;
  #elif defined(TARGET_LM32)
      s.info.mach = bfd_mach_lm32;
      print_insn = print_insn_lm32;
  #endif
      if (print_insn == NULL) {
          print_insn = print_insn_od_target;
      }
  
      for (pc = code; size > 0; pc += count, size -= count) {
  	fprintf(out, "0x" TARGET_FMT_lx ":  ", pc);
  	count = print_insn(pc, &s.info);
  #if 0
          {
              int i;
              uint8_t b;
              fprintf(out, " {");
              for(i = 0; i < count; i++) {
                  target_read_memory(pc + i, &b, 1, &s.info);
                  fprintf(out, " %02x", b);
              }
              fprintf(out, " }");
          }
  #endif
  	fprintf(out, "\n");
  	if (count < 0)
  	    break;
          if (size < count) {
              fprintf(out,
                      "Disassembler disagrees with translator over instruction "
                      "decoding\n"
                      "Please report this to qemu-devel@nongnu.org\n");
              break;
          }
      }
  }
  
  /* Disassemble this for me please... (debugging). */
  void disas(FILE *out, void *code, unsigned long size)
  {
      uintptr_t pc;
      int count;
      CPUDebug s;
      int (*print_insn)(bfd_vma pc, disassemble_info *info) = NULL;
  
      INIT_DISASSEMBLE_INFO(s.info, out, fprintf);
      s.info.print_address_func = generic_print_host_address;
  
      s.info.buffer = code;
      s.info.buffer_vma = (uintptr_t)code;
      s.info.buffer_length = size;
  
  #ifdef HOST_WORDS_BIGENDIAN
      s.info.endian = BFD_ENDIAN_BIG;
  #else
      s.info.endian = BFD_ENDIAN_LITTLE;
  #endif
  #if defined(CONFIG_TCG_INTERPRETER)
      print_insn = print_insn_tci;
  #elif defined(__i386__)
      s.info.mach = bfd_mach_i386_i386;
      print_insn = print_insn_i386;
  #elif defined(__x86_64__)
      s.info.mach = bfd_mach_x86_64;
      print_insn = print_insn_i386;
  #elif defined(_ARCH_PPC)
      s.info.disassembler_options = (char *)"any";
      print_insn = print_insn_ppc;
  #elif defined(__aarch64__) && defined(CONFIG_ARM_A64_DIS)
      print_insn = print_insn_arm_a64;
  #elif defined(__alpha__)
      print_insn = print_insn_alpha;
  #elif defined(__sparc__)
      print_insn = print_insn_sparc;
      s.info.mach = bfd_mach_sparc_v9b;
  #elif defined(__arm__)
      print_insn = print_insn_arm;
  #elif defined(__MIPSEB__)
      print_insn = print_insn_big_mips;
  #elif defined(__MIPSEL__)
      print_insn = print_insn_little_mips;
  #elif defined(__m68k__)
      print_insn = print_insn_m68k;
  #elif defined(__s390__)
      print_insn = print_insn_s390;
  #elif defined(__hppa__)
      print_insn = print_insn_hppa;
  #elif defined(__ia64__)
      print_insn = print_insn_ia64;
  #endif
      if (print_insn == NULL) {
          print_insn = print_insn_od_host;
      }
      for (pc = (uintptr_t)code; size > 0; pc += count, size -= count) {
          fprintf(out, "0x%08" PRIxPTR ":  ", pc);
          count = print_insn(pc, &s.info);
  	fprintf(out, "\n");
  	if (count < 0)
  	    break;
      }
  }
  
  /* Look up symbol for debugging purpose.  Returns "" if unknown. */
  const char *lookup_symbol(target_ulong orig_addr)
  {
      const char *symbol = "";
      struct syminfo *s;
  
      for (s = syminfos; s; s = s->next) {
          symbol = s->lookup_symbol(s, orig_addr);
          if (symbol[0] != '\0') {
              break;
          }
      }
  
      return symbol;
  }
  
  #if !defined(CONFIG_USER_ONLY)
  
  #include "monitor/monitor.h"
  
  static int monitor_disas_is_physical;
  
  static int
  monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
                       struct disassemble_info *info)
  {
      CPUDebug *s = container_of(info, CPUDebug, info);
  
      if (monitor_disas_is_physical) {
          cpu_physical_memory_read(memaddr, myaddr, length);
      } else {
          cpu_memory_rw_debug(ENV_GET_CPU(s->env), memaddr, myaddr, length, 0);
      }
      return 0;
  }
  
  static int GCC_FMT_ATTR(2, 3)
  monitor_fprintf(FILE *stream, const char *fmt, ...)
  {
      va_list ap;
      va_start(ap, fmt);
      monitor_vprintf((Monitor *)stream, fmt, ap);
      va_end(ap);
      return 0;
  }
  
  /* Disassembler for the monitor.
     See target_disas for a description of flags. */
  void monitor_disas(Monitor *mon, CPUArchState *env,
                     target_ulong pc, int nb_insn, int is_physical, int flags)
  {
      int count, i;
      CPUDebug s;
      int (*print_insn)(bfd_vma pc, disassemble_info *info);
  
      INIT_DISASSEMBLE_INFO(s.info, (FILE *)mon, monitor_fprintf);
  
      s.env = env;
      monitor_disas_is_physical = is_physical;
      s.info.read_memory_func = monitor_read_memory;
      s.info.print_address_func = generic_print_target_address;
  
      s.info.buffer_vma = pc;
  
  #ifdef TARGET_WORDS_BIGENDIAN
      s.info.endian = BFD_ENDIAN_BIG;
  #else
      s.info.endian = BFD_ENDIAN_LITTLE;
  #endif
  #if defined(TARGET_I386)
      if (flags == 2) {
          s.info.mach = bfd_mach_x86_64;
      } else if (flags == 1) {
          s.info.mach = bfd_mach_i386_i8086;
      } else {
          s.info.mach = bfd_mach_i386_i386;
      }
      print_insn = print_insn_i386;
  #elif defined(TARGET_ARM)
      print_insn = print_insn_arm;
  #elif defined(TARGET_ALPHA)
      print_insn = print_insn_alpha;
  #elif defined(TARGET_SPARC)
      print_insn = print_insn_sparc;
  #ifdef TARGET_SPARC64
      s.info.mach = bfd_mach_sparc_v9b;
  #endif
  #elif defined(TARGET_PPC)
      if (flags & 0xFFFF) {
          /* If we have a precise definition of the instruction set, use it. */
          s.info.mach = flags & 0xFFFF;
      } else {
  #ifdef TARGET_PPC64
          s.info.mach = bfd_mach_ppc64;
  #else
          s.info.mach = bfd_mach_ppc;
  #endif
      }
      if ((flags >> 16) & 1) {
          s.info.endian = BFD_ENDIAN_LITTLE;
      }
      print_insn = print_insn_ppc;
  #elif defined(TARGET_M68K)
      print_insn = print_insn_m68k;
  #elif defined(TARGET_MIPS)
  #ifdef TARGET_WORDS_BIGENDIAN
      print_insn = print_insn_big_mips;
  #else
      print_insn = print_insn_little_mips;
  #endif
  #elif defined(TARGET_SH4)
      s.info.mach = bfd_mach_sh4;
      print_insn = print_insn_sh;
  #elif defined(TARGET_S390X)
      s.info.mach = bfd_mach_s390_64;
      print_insn = print_insn_s390;
  #elif defined(TARGET_MOXIE)
      s.info.mach = bfd_arch_moxie;
      print_insn = print_insn_moxie;
  #elif defined(TARGET_LM32)
      s.info.mach = bfd_mach_lm32;
      print_insn = print_insn_lm32;
  #else
      monitor_printf(mon, "0x" TARGET_FMT_lx
                     ": Asm output not supported on this arch\n", pc);
      return;
  #endif
  
      for(i = 0; i < nb_insn; i++) {
  	monitor_printf(mon, "0x" TARGET_FMT_lx ":  ", pc);
          count = print_insn(pc, &s.info);
  	monitor_printf(mon, "\n");
  	if (count < 0)
  	    break;
          pc += count;
      }
  }
  #endif
  