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disas: Implement fallback to dump object code as hex

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The OBJD-[HT] tags will be used by a script to run the hex blob
through objdump --disassemble.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Richard Henderson 2013-08-16 23:29:45 -07:00 committed by Edgar E. Iglesias
parent 5211333bf7
commit c46ffd57a3
1 changed files with 37 additions and 10 deletions
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47
disas.c
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@ -158,6 +158,35 @@ print_insn_thumb1(bfd_vma pc, disassemble_info *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
@ -171,7 +200,7 @@ void target_disas(FILE *out, CPUArchState *env, target_ulong code,
target_ulong pc;
int count;
CPUDebug s;
int (*print_insn)(bfd_vma pc, disassemble_info *info);
int (*print_insn)(bfd_vma pc, disassemble_info *info) = NULL;
INIT_DISASSEMBLE_INFO(s.info, out, fprintf);
@ -263,11 +292,10 @@ void target_disas(FILE *out, CPUArchState *env, target_ulong code,
#elif defined(TARGET_LM32)
s.info.mach = bfd_mach_lm32;
print_insn = print_insn_lm32;
#else
fprintf(out, "0x" TARGET_FMT_lx
": Asm output not supported on this arch\n", code);
return;
#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);
@ -303,7 +331,7 @@ 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);
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;
@ -347,11 +375,10 @@ void disas(FILE *out, void *code, unsigned long size)
print_insn = print_insn_hppa;
#elif defined(__ia64__)
print_insn = print_insn_ia64;
#else
fprintf(out, "0x%lx: Asm output not supported on this arch\n",
(long) code);
return;
#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);