diff options
Diffstat (limited to 'disas.c')
| -rw-r--r-- | disas.c | 96 |
1 files changed, 84 insertions, 12 deletions
@@ -220,6 +220,77 @@ static cs_err cap_disas_start(disassemble_info *info, csh *handle) return CS_ERR_OK; } +static void cap_dump_insn_units(disassemble_info *info, cs_insn *insn, + int i, int n) +{ + fprintf_function print = info->fprintf_func; + FILE *stream = info->stream; + + switch (info->cap_insn_unit) { + case 4: + if (info->endian == BFD_ENDIAN_BIG) { + for (; i < n; i += 4) { + print(stream, " %08x", ldl_be_p(insn->bytes + i)); + + } + } else { + for (; i < n; i += 4) { + print(stream, " %08x", ldl_le_p(insn->bytes + i)); + } + } + break; + + case 2: + if (info->endian == BFD_ENDIAN_BIG) { + for (; i < n; i += 2) { + print(stream, " %04x", lduw_be_p(insn->bytes + i)); + } + } else { + for (; i < n; i += 2) { + print(stream, " %04x", lduw_le_p(insn->bytes + i)); + } + } + break; + + default: + for (; i < n; i++) { + print(stream, " %02x", insn->bytes[i]); + } + break; + } +} + +static void cap_dump_insn(disassemble_info *info, cs_insn *insn) +{ + fprintf_function print = info->fprintf_func; + int i, n, split; + + print(info->stream, "0x%08" PRIx64 ": ", insn->address); + + n = insn->size; + split = info->cap_insn_split; + + /* Dump the first SPLIT bytes of the instruction. */ + cap_dump_insn_units(info, insn, 0, MIN(n, split)); + + /* Add padding up to SPLIT so that mnemonics line up. */ + if (n < split) { + int width = (split - n) / info->cap_insn_unit; + width *= (2 * info->cap_insn_unit + 1); + print(info->stream, "%*s", width, ""); + } + + /* Print the actual instruction. */ + print(info->stream, " %-8s %s\n", insn->mnemonic, insn->op_str); + + /* Dump any remaining part of the insn on subsequent lines. */ + for (i = split; i < n; i += split) { + print(info->stream, "0x%08" PRIx64 ": ", insn->address + i); + cap_dump_insn_units(info, insn, i, MIN(n, i + split)); + print(info->stream, "\n"); + } +} + /* Disassemble SIZE bytes at PC for the target. */ static bool cap_disas_target(disassemble_info *info, uint64_t pc, size_t size) { @@ -242,10 +313,7 @@ static bool cap_disas_target(disassemble_info *info, uint64_t pc, size_t size) size -= tsize; while (cs_disasm_iter(handle, &cbuf, &csize, &pc, insn)) { - (*info->fprintf_func)(info->stream, - "0x%08" PRIx64 ": %-12s %s\n", - insn->address, insn->mnemonic, - insn->op_str); + cap_dump_insn(info, insn); } /* If the target memory is not consumed, go back for more... */ @@ -290,10 +358,7 @@ static bool cap_disas_host(disassemble_info *info, void *code, size_t size) pc = (uintptr_t)code; while (cs_disasm_iter(handle, &cbuf, &size, &pc, insn)) { - (*info->fprintf_func)(info->stream, - "0x%08" PRIx64 ": %-12s %s\n", - insn->address, insn->mnemonic, - insn->op_str); + cap_dump_insn(info, insn); } if (size != 0) { (*info->fprintf_func)(info->stream, @@ -337,10 +402,7 @@ static bool cap_disas_monitor(disassemble_info *info, uint64_t pc, int count) csize += tsize; if (cs_disasm_iter(handle, &cbuf, &csize, &pc, insn)) { - (*info->fprintf_func)(info->stream, - "0x%08" PRIx64 ": %-12s %s\n", - insn->address, insn->mnemonic, - insn->op_str); + cap_dump_insn(info, insn); if (--count <= 0) { break; } @@ -376,6 +438,8 @@ void target_disas(FILE *out, CPUState *cpu, target_ulong code, s.info.print_address_func = generic_print_address; s.info.cap_arch = -1; s.info.cap_mode = 0; + s.info.cap_insn_unit = 4; + s.info.cap_insn_split = 4; #ifdef TARGET_WORDS_BIGENDIAN s.info.endian = BFD_ENDIAN_BIG; @@ -427,6 +491,8 @@ void disas(FILE *out, void *code, unsigned long size) s.info.buffer_length = size; s.info.cap_arch = -1; s.info.cap_mode = 0; + s.info.cap_insn_unit = 4; + s.info.cap_insn_split = 4; #ifdef HOST_WORDS_BIGENDIAN s.info.endian = BFD_ENDIAN_BIG; @@ -440,11 +506,15 @@ void disas(FILE *out, void *code, unsigned long size) print_insn = print_insn_i386; s.info.cap_arch = CS_ARCH_X86; s.info.cap_mode = CS_MODE_32; + s.info.cap_insn_unit = 1; + s.info.cap_insn_split = 8; #elif defined(__x86_64__) s.info.mach = bfd_mach_x86_64; print_insn = print_insn_i386; s.info.cap_arch = CS_ARCH_X86; s.info.cap_mode = CS_MODE_64; + s.info.cap_insn_unit = 1; + s.info.cap_insn_split = 8; #elif defined(_ARCH_PPC) s.info.disassembler_options = (char *)"any"; print_insn = print_insn_ppc; @@ -537,6 +607,8 @@ void monitor_disas(Monitor *mon, CPUState *cpu, s.info.buffer_vma = pc; s.info.cap_arch = -1; s.info.cap_mode = 0; + s.info.cap_insn_unit = 4; + s.info.cap_insn_split = 4; #ifdef TARGET_WORDS_BIGENDIAN s.info.endian = BFD_ENDIAN_BIG; |