2003-04-29 22:41:16 +02:00
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/* General "disassemble this chunk" code. Used for debugging. */
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2003-06-09 21:38:38 +02:00
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#include "config.h"
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2003-04-29 22:41:16 +02:00
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#include "dis-asm.h"
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#include "elf.h"
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2003-06-09 17:23:31 +02:00
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#include <errno.h>
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2003-04-29 22:41:16 +02:00
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2003-10-27 22:13:58 +01:00
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#include "cpu.h"
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#include "exec-all.h"
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2004-04-04 14:57:25 +02:00
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#include "disas.h"
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2003-10-27 22:13:58 +01:00
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2003-04-29 22:41:16 +02:00
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/* Filled in by elfload.c. Simplistic, but will do for now. */
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2004-12-20 00:18:01 +01:00
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struct syminfo *syminfos = NULL;
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2003-04-29 22:41:16 +02:00
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2003-06-09 17:23:31 +02:00
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/* Get LENGTH bytes from info's buffer, at target address memaddr.
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Transfer them to myaddr. */
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int
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2008-10-22 17:55:18 +02:00
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buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length,
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struct disassemble_info *info)
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2003-06-09 17:23:31 +02:00
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{
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2003-10-27 22:13:58 +01:00
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if (memaddr < info->buffer_vma
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|| memaddr + length > info->buffer_vma + info->buffer_length)
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/* Out of bounds. Use EIO because GDB uses it. */
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return EIO;
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memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length);
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return 0;
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2003-06-09 17:23:31 +02:00
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}
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2003-10-27 22:13:58 +01:00
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/* Get LENGTH bytes from info's buffer, at target address memaddr.
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Transfer them to myaddr. */
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static int
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2005-01-04 00:35:10 +01:00
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target_read_memory (bfd_vma memaddr,
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bfd_byte *myaddr,
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int length,
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struct disassemble_info *info)
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2003-10-27 22:13:58 +01:00
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{
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2009-05-07 19:14:07 +02:00
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cpu_memory_rw_debug(cpu_single_env, memaddr, myaddr, length, 0);
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2003-10-27 22:13:58 +01:00
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return 0;
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}
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2003-06-09 17:23:31 +02:00
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/* Print an error message. We can assume that this is in response to
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an error return from buffer_read_memory. */
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void
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2008-10-22 17:55:18 +02:00
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perror_memory (int status, bfd_vma memaddr, struct disassemble_info *info)
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2003-06-09 17:23:31 +02:00
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{
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if (status != EIO)
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/* Can't happen. */
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(*info->fprintf_func) (info->stream, "Unknown error %d\n", status);
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else
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/* Actually, address between memaddr and memaddr + len was
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out of bounds. */
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(*info->fprintf_func) (info->stream,
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2006-06-25 20:15:32 +02:00
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"Address 0x%" PRIx64 " is out of bounds.\n", memaddr);
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2003-06-09 17:23:31 +02:00
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}
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/* This could be in a separate file, to save miniscule amounts of space
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in statically linked executables. */
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/* Just print the address is hex. This is included for completeness even
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though both GDB and objdump provide their own (to print symbolic
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addresses). */
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void
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2008-10-22 17:55:18 +02:00
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generic_print_address (bfd_vma addr, struct disassemble_info *info)
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2003-06-09 17:23:31 +02:00
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{
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2006-06-25 20:15:32 +02:00
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(*info->fprintf_func) (info->stream, "0x%" PRIx64, addr);
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2003-06-09 17:23:31 +02:00
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}
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/* Just return the given address. */
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int
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2008-10-22 17:55:18 +02:00
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generic_symbol_at_address (bfd_vma addr, struct disassemble_info *info)
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2003-06-09 17:23:31 +02:00
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{
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return 1;
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}
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2010-03-29 02:12:51 +02:00
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bfd_vma bfd_getl64 (const bfd_byte *addr)
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{
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unsigned long long v;
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v = (unsigned long long) addr[0];
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v |= (unsigned long long) addr[1] << 8;
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v |= (unsigned long long) addr[2] << 16;
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v |= (unsigned long long) addr[3] << 24;
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v |= (unsigned long long) addr[4] << 32;
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v |= (unsigned long long) addr[5] << 40;
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v |= (unsigned long long) addr[6] << 48;
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v |= (unsigned long long) addr[7] << 56;
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return (bfd_vma) v;
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}
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2003-06-09 17:23:31 +02:00
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bfd_vma bfd_getl32 (const bfd_byte *addr)
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{
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unsigned long v;
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v = (unsigned long) addr[0];
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v |= (unsigned long) addr[1] << 8;
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v |= (unsigned long) addr[2] << 16;
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v |= (unsigned long) addr[3] << 24;
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return (bfd_vma) v;
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}
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bfd_vma bfd_getb32 (const bfd_byte *addr)
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{
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unsigned long v;
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v = (unsigned long) addr[0] << 24;
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v |= (unsigned long) addr[1] << 16;
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v |= (unsigned long) addr[2] << 8;
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v |= (unsigned long) addr[3];
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return (bfd_vma) v;
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}
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2005-07-02 16:58:51 +02:00
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bfd_vma bfd_getl16 (const bfd_byte *addr)
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{
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unsigned long v;
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v = (unsigned long) addr[0];
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v |= (unsigned long) addr[1] << 8;
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return (bfd_vma) v;
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}
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bfd_vma bfd_getb16 (const bfd_byte *addr)
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{
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unsigned long v;
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v = (unsigned long) addr[0] << 24;
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v |= (unsigned long) addr[1] << 16;
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return (bfd_vma) v;
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}
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2005-04-27 22:15:00 +02:00
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#ifdef TARGET_ARM
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static int
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print_insn_thumb1(bfd_vma pc, disassemble_info *info)
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{
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return print_insn_arm(pc | 1, info);
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}
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#endif
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2007-06-03 15:35:16 +02:00
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/* Disassemble this for me please... (debugging). 'flags' has the following
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2005-04-27 22:15:00 +02:00
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values:
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i386 - nonzero means 16 bit code
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2007-09-16 23:08:06 +02:00
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arm - nonzero means thumb code
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2005-11-22 00:25:50 +01:00
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ppc - nonzero means little endian
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2005-04-27 22:15:00 +02:00
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other targets - unused
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*/
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2005-01-23 21:26:30 +01:00
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void target_disas(FILE *out, target_ulong code, target_ulong size, int flags)
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2003-04-29 22:41:16 +02:00
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{
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2005-01-04 00:35:10 +01:00
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target_ulong pc;
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2003-04-29 22:41:16 +02:00
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int count;
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struct disassemble_info disasm_info;
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int (*print_insn)(bfd_vma pc, disassemble_info *info);
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INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf);
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2005-01-04 00:35:10 +01:00
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disasm_info.read_memory_func = target_read_memory;
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disasm_info.buffer_vma = code;
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disasm_info.buffer_length = size;
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#ifdef TARGET_WORDS_BIGENDIAN
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disasm_info.endian = BFD_ENDIAN_BIG;
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#else
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disasm_info.endian = BFD_ENDIAN_LITTLE;
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#endif
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#if defined(TARGET_I386)
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if (flags == 2)
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disasm_info.mach = bfd_mach_x86_64;
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2007-09-16 23:08:06 +02:00
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else if (flags == 1)
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2005-01-04 00:35:10 +01:00
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disasm_info.mach = bfd_mach_i386_i8086;
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else
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disasm_info.mach = bfd_mach_i386_i386;
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print_insn = print_insn_i386;
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#elif defined(TARGET_ARM)
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2005-04-27 22:15:00 +02:00
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if (flags)
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print_insn = print_insn_thumb1;
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else
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print_insn = print_insn_arm;
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2005-01-04 00:35:10 +01:00
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#elif defined(TARGET_SPARC)
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print_insn = print_insn_sparc;
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2005-07-02 16:31:34 +02:00
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#ifdef TARGET_SPARC64
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disasm_info.mach = bfd_mach_sparc_v9b;
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2007-09-17 10:09:54 +02:00
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#endif
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2005-01-04 00:35:10 +01:00
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#elif defined(TARGET_PPC)
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2007-09-29 14:01:46 +02:00
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if (flags >> 16)
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2005-04-23 20:16:07 +02:00
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disasm_info.endian = BFD_ENDIAN_LITTLE;
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2007-09-29 14:01:46 +02:00
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if (flags & 0xFFFF) {
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/* If we have a precise definitions of the instructions set, use it */
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disasm_info.mach = flags & 0xFFFF;
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} else {
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2005-07-24 00:39:53 +02:00
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#ifdef TARGET_PPC64
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2007-09-29 14:01:46 +02:00
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disasm_info.mach = bfd_mach_ppc64;
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2005-07-24 00:39:53 +02:00
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#else
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2007-09-29 14:01:46 +02:00
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disasm_info.mach = bfd_mach_ppc;
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2005-07-24 00:39:53 +02:00
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#endif
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2007-09-29 14:01:46 +02:00
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}
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2005-01-04 00:35:10 +01:00
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print_insn = print_insn_ppc;
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2006-10-22 02:18:54 +02:00
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#elif defined(TARGET_M68K)
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print_insn = print_insn_m68k;
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2005-07-02 16:58:51 +02:00
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#elif defined(TARGET_MIPS)
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2005-12-17 02:10:04 +01:00
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#ifdef TARGET_WORDS_BIGENDIAN
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2005-07-02 16:58:51 +02:00
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print_insn = print_insn_big_mips;
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2005-12-17 02:10:04 +01:00
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#else
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print_insn = print_insn_little_mips;
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#endif
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2006-04-27 23:07:38 +02:00
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#elif defined(TARGET_SH4)
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disasm_info.mach = bfd_mach_sh4;
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print_insn = print_insn_sh;
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2007-04-05 09:22:49 +02:00
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#elif defined(TARGET_ALPHA)
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disasm_info.mach = bfd_mach_alpha;
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print_insn = print_insn_alpha;
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2007-10-08 14:46:58 +02:00
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#elif defined(TARGET_CRIS)
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2011-01-10 22:31:09 +01:00
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if (flags != 32) {
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disasm_info.mach = bfd_mach_cris_v0_v10;
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print_insn = print_insn_crisv10;
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} else {
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disasm_info.mach = bfd_mach_cris_v32;
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print_insn = print_insn_crisv32;
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}
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2009-05-20 20:07:38 +02:00
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#elif defined(TARGET_MICROBLAZE)
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disasm_info.mach = bfd_arch_microblaze;
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print_insn = print_insn_microblaze;
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2005-01-04 00:35:10 +01:00
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#else
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2005-04-08 00:20:31 +02:00
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fprintf(out, "0x" TARGET_FMT_lx
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": Asm output not supported on this arch\n", code);
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2005-01-04 00:35:10 +01:00
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return;
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2003-10-27 22:13:58 +01:00
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#endif
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2009-02-13 22:44:41 +01:00
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for (pc = code; size > 0; pc += count, size -= count) {
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2005-02-01 00:32:31 +01:00
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fprintf(out, "0x" TARGET_FMT_lx ": ", pc);
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2005-01-04 00:35:10 +01:00
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count = print_insn(pc, &disasm_info);
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#if 0
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{
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int i;
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uint8_t b;
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fprintf(out, " {");
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for(i = 0; i < count; i++) {
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target_read_memory(pc + i, &b, 1, &disasm_info);
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fprintf(out, " %02x", b);
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}
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fprintf(out, " }");
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}
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#endif
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fprintf(out, "\n");
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if (count < 0)
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break;
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2009-04-22 00:26:22 +02:00
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if (size < count) {
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fprintf(out,
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"Disassembler disagrees with translator over instruction "
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"decoding\n"
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"Please report this to qemu-devel@nongnu.org\n");
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break;
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}
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2005-01-04 00:35:10 +01:00
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}
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}
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/* Disassemble this for me please... (debugging). */
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void disas(FILE *out, void *code, unsigned long size)
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{
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unsigned long pc;
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int count;
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struct disassemble_info disasm_info;
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int (*print_insn)(bfd_vma pc, disassemble_info *info);
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INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf);
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2003-04-29 22:41:16 +02:00
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disasm_info.buffer = code;
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disasm_info.buffer_vma = (unsigned long)code;
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disasm_info.buffer_length = size;
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2009-07-27 16:13:06 +02:00
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#ifdef HOST_WORDS_BIGENDIAN
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2005-01-04 00:35:10 +01:00
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disasm_info.endian = BFD_ENDIAN_BIG;
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2003-04-29 22:41:16 +02:00
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#else
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2005-01-04 00:35:10 +01:00
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disasm_info.endian = BFD_ENDIAN_LITTLE;
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2003-04-29 22:41:16 +02:00
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#endif
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2004-03-18 00:46:04 +01:00
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#if defined(__i386__)
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2005-01-04 00:35:10 +01:00
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disasm_info.mach = bfd_mach_i386_i386;
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print_insn = print_insn_i386;
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2004-03-18 00:46:04 +01:00
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#elif defined(__x86_64__)
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2005-01-04 00:35:10 +01:00
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disasm_info.mach = bfd_mach_x86_64;
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print_insn = print_insn_i386;
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2009-01-14 19:39:49 +01:00
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#elif defined(_ARCH_PPC)
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2005-01-04 00:35:10 +01:00
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print_insn = print_insn_ppc;
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2003-05-11 14:25:45 +02:00
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#elif defined(__alpha__)
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2005-01-04 00:35:10 +01:00
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print_insn = print_insn_alpha;
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2003-06-09 17:23:31 +02:00
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#elif defined(__sparc__)
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2005-01-04 00:35:10 +01:00
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print_insn = print_insn_sparc;
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2007-04-08 13:22:29 +02:00
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#if defined(__sparc_v8plus__) || defined(__sparc_v8plusa__) || defined(__sparc_v9__)
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disasm_info.mach = bfd_mach_sparc_v9b;
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#endif
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2007-09-16 23:08:06 +02:00
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#elif defined(__arm__)
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2005-01-04 00:35:10 +01:00
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print_insn = print_insn_arm;
|
2005-07-02 16:58:51 +02:00
|
|
|
#elif defined(__MIPSEB__)
|
|
|
|
print_insn = print_insn_big_mips;
|
|
|
|
#elif defined(__MIPSEL__)
|
|
|
|
print_insn = print_insn_little_mips;
|
2005-11-06 17:52:11 +01:00
|
|
|
#elif defined(__m68k__)
|
|
|
|
print_insn = print_insn_m68k;
|
2007-08-01 01:44:21 +02:00
|
|
|
#elif defined(__s390__)
|
|
|
|
print_insn = print_insn_s390;
|
2008-04-12 22:14:54 +02:00
|
|
|
#elif defined(__hppa__)
|
|
|
|
print_insn = print_insn_hppa;
|
2010-03-29 02:12:51 +02:00
|
|
|
#elif defined(__ia64__)
|
|
|
|
print_insn = print_insn_ia64;
|
2003-04-29 22:41:16 +02:00
|
|
|
#else
|
2005-04-08 00:20:31 +02:00
|
|
|
fprintf(out, "0x%lx: Asm output not supported on this arch\n",
|
|
|
|
(long) code);
|
2005-01-04 00:35:10 +01:00
|
|
|
return;
|
2003-04-29 22:41:16 +02:00
|
|
|
#endif
|
2009-02-13 22:44:41 +01:00
|
|
|
for (pc = (unsigned long)code; size > 0; pc += count, size -= count) {
|
2005-01-04 00:35:10 +01:00
|
|
|
fprintf(out, "0x%08lx: ", pc);
|
2003-06-09 17:23:31 +02:00
|
|
|
#ifdef __arm__
|
2006-07-30 21:16:29 +02:00
|
|
|
/* since data is included in the code, it is better to
|
2003-06-09 17:23:31 +02:00
|
|
|
display code data too */
|
2006-07-30 21:16:29 +02:00
|
|
|
fprintf(out, "%08x ", (int)bfd_getl32((const bfd_byte *)pc));
|
2003-06-09 17:23:31 +02:00
|
|
|
#endif
|
2005-01-04 00:35:10 +01:00
|
|
|
count = print_insn(pc, &disasm_info);
|
2003-04-29 22:41:16 +02:00
|
|
|
fprintf(out, "\n");
|
|
|
|
if (count < 0)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Look up symbol for debugging purpose. Returns "" if unknown. */
|
2005-01-04 00:35:10 +01:00
|
|
|
const char *lookup_symbol(target_ulong orig_addr)
|
2003-04-29 22:41:16 +02:00
|
|
|
{
|
2008-10-22 17:11:31 +02:00
|
|
|
const char *symbol = "";
|
2004-12-20 00:18:01 +01:00
|
|
|
struct syminfo *s;
|
2007-09-17 10:09:54 +02:00
|
|
|
|
2004-12-20 00:18:01 +01:00
|
|
|
for (s = syminfos; s; s = s->next) {
|
2008-10-22 17:11:31 +02:00
|
|
|
symbol = s->lookup_symbol(s, orig_addr);
|
|
|
|
if (symbol[0] != '\0') {
|
|
|
|
break;
|
|
|
|
}
|
2003-04-29 22:41:16 +02:00
|
|
|
}
|
2008-10-22 17:11:31 +02:00
|
|
|
|
|
|
|
return symbol;
|
2003-04-29 22:41:16 +02:00
|
|
|
}
|
2004-04-04 14:57:25 +02:00
|
|
|
|
|
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
|
|
|
2009-03-06 00:01:23 +01:00
|
|
|
#include "monitor.h"
|
2004-08-01 23:49:07 +02:00
|
|
|
|
2004-04-04 14:57:25 +02:00
|
|
|
static int monitor_disas_is_physical;
|
2005-11-22 00:25:50 +01:00
|
|
|
static CPUState *monitor_disas_env;
|
2004-04-04 14:57:25 +02:00
|
|
|
|
|
|
|
static int
|
2008-08-17 22:21:51 +02:00
|
|
|
monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
|
|
|
|
struct disassemble_info *info)
|
2004-04-04 14:57:25 +02:00
|
|
|
{
|
|
|
|
if (monitor_disas_is_physical) {
|
|
|
|
cpu_physical_memory_rw(memaddr, myaddr, length, 0);
|
|
|
|
} else {
|
2005-11-22 00:25:50 +01:00
|
|
|
cpu_memory_rw_debug(monitor_disas_env, memaddr,myaddr, length, 0);
|
2004-04-04 14:57:25 +02:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-09-23 21:28:05 +02:00
|
|
|
static int GCC_FMT_ATTR(2, 3)
|
|
|
|
monitor_fprintf(FILE *stream, const char *fmt, ...)
|
2004-08-01 23:49:07 +02:00
|
|
|
{
|
|
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
2009-03-06 00:01:23 +01:00
|
|
|
monitor_vprintf((Monitor *)stream, fmt, ap);
|
2004-08-01 23:49:07 +02:00
|
|
|
va_end(ap);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-03-06 00:01:23 +01:00
|
|
|
void monitor_disas(Monitor *mon, CPUState *env,
|
2005-11-22 00:25:50 +01:00
|
|
|
target_ulong pc, int nb_insn, int is_physical, int flags)
|
2004-04-04 14:57:25 +02:00
|
|
|
{
|
|
|
|
int count, i;
|
|
|
|
struct disassemble_info disasm_info;
|
|
|
|
int (*print_insn)(bfd_vma pc, disassemble_info *info);
|
|
|
|
|
2009-03-06 00:01:23 +01:00
|
|
|
INIT_DISASSEMBLE_INFO(disasm_info, (FILE *)mon, monitor_fprintf);
|
2004-04-04 14:57:25 +02:00
|
|
|
|
2005-11-22 00:25:50 +01:00
|
|
|
monitor_disas_env = env;
|
2004-04-04 14:57:25 +02:00
|
|
|
monitor_disas_is_physical = is_physical;
|
|
|
|
disasm_info.read_memory_func = monitor_read_memory;
|
|
|
|
|
|
|
|
disasm_info.buffer_vma = pc;
|
|
|
|
|
|
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
|
|
disasm_info.endian = BFD_ENDIAN_BIG;
|
|
|
|
#else
|
|
|
|
disasm_info.endian = BFD_ENDIAN_LITTLE;
|
|
|
|
#endif
|
|
|
|
#if defined(TARGET_I386)
|
2005-02-01 00:32:31 +01:00
|
|
|
if (flags == 2)
|
|
|
|
disasm_info.mach = bfd_mach_x86_64;
|
2007-09-16 23:08:06 +02:00
|
|
|
else if (flags == 1)
|
2004-04-04 14:57:25 +02:00
|
|
|
disasm_info.mach = bfd_mach_i386_i8086;
|
2005-02-01 00:32:31 +01:00
|
|
|
else
|
|
|
|
disasm_info.mach = bfd_mach_i386_i386;
|
2004-04-04 14:57:25 +02:00
|
|
|
print_insn = print_insn_i386;
|
|
|
|
#elif defined(TARGET_ARM)
|
|
|
|
print_insn = print_insn_arm;
|
2007-12-25 01:26:36 +01:00
|
|
|
#elif defined(TARGET_ALPHA)
|
|
|
|
print_insn = print_insn_alpha;
|
2004-04-04 14:57:25 +02:00
|
|
|
#elif defined(TARGET_SPARC)
|
|
|
|
print_insn = print_insn_sparc;
|
2007-04-09 17:14:57 +02:00
|
|
|
#ifdef TARGET_SPARC64
|
|
|
|
disasm_info.mach = bfd_mach_sparc_v9b;
|
|
|
|
#endif
|
2004-04-04 14:57:25 +02:00
|
|
|
#elif defined(TARGET_PPC)
|
2005-07-24 00:39:53 +02:00
|
|
|
#ifdef TARGET_PPC64
|
|
|
|
disasm_info.mach = bfd_mach_ppc64;
|
|
|
|
#else
|
|
|
|
disasm_info.mach = bfd_mach_ppc;
|
|
|
|
#endif
|
2004-04-04 14:57:25 +02:00
|
|
|
print_insn = print_insn_ppc;
|
2006-10-22 02:18:54 +02:00
|
|
|
#elif defined(TARGET_M68K)
|
|
|
|
print_insn = print_insn_m68k;
|
2005-07-02 16:58:51 +02:00
|
|
|
#elif defined(TARGET_MIPS)
|
2005-12-17 02:10:04 +01:00
|
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
2005-07-02 16:58:51 +02:00
|
|
|
print_insn = print_insn_big_mips;
|
2005-12-17 02:10:04 +01:00
|
|
|
#else
|
|
|
|
print_insn = print_insn_little_mips;
|
|
|
|
#endif
|
2009-11-13 10:54:22 +01:00
|
|
|
#elif defined(TARGET_SH4)
|
|
|
|
disasm_info.mach = bfd_mach_sh4;
|
|
|
|
print_insn = print_insn_sh;
|
2004-04-04 14:57:25 +02:00
|
|
|
#else
|
2009-03-06 00:01:23 +01:00
|
|
|
monitor_printf(mon, "0x" TARGET_FMT_lx
|
|
|
|
": Asm output not supported on this arch\n", pc);
|
2004-04-04 14:57:25 +02:00
|
|
|
return;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
for(i = 0; i < nb_insn; i++) {
|
2009-03-06 00:01:23 +01:00
|
|
|
monitor_printf(mon, "0x" TARGET_FMT_lx ": ", pc);
|
2004-04-04 14:57:25 +02:00
|
|
|
count = print_insn(pc, &disasm_info);
|
2009-03-06 00:01:23 +01:00
|
|
|
monitor_printf(mon, "\n");
|
2004-04-04 14:57:25 +02:00
|
|
|
if (count < 0)
|
|
|
|
break;
|
|
|
|
pc += count;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|