mirror of
https://github.com/capstone-engine/capstone.git
synced 2024-12-13 16:28:03 +00:00
205 lines
6.3 KiB
C
205 lines
6.3 KiB
C
/* Capstone Disassembler Engine */
|
|
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013> */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <inttypes.h>
|
|
|
|
#include <capstone.h>
|
|
|
|
static csh handle;
|
|
|
|
struct platform {
|
|
cs_arch arch;
|
|
cs_mode mode;
|
|
unsigned char *code;
|
|
size_t size;
|
|
char *comment;
|
|
};
|
|
|
|
static void print_string_hex(char *comment, unsigned char *str, int len)
|
|
{
|
|
unsigned char *c;
|
|
|
|
printf("%s", comment);
|
|
for (c = str; c < str + len; c++) {
|
|
printf("0x%02x ", *c & 0xff);
|
|
}
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
static void print_insn_detail(cs_insn *ins)
|
|
{
|
|
cs_arm64 *arm64;
|
|
int i;
|
|
|
|
// detail can be NULL if SKIPDATA option is turned ON
|
|
if (ins->detail == NULL)
|
|
return;
|
|
|
|
arm64 = &(ins->detail->arm64);
|
|
if (arm64->op_count)
|
|
printf("\top_count: %u\n", arm64->op_count);
|
|
|
|
for (i = 0; i < arm64->op_count; i++) {
|
|
cs_arm64_op *op = &(arm64->operands[i]);
|
|
switch(op->type) {
|
|
default:
|
|
break;
|
|
case ARM64_OP_REG:
|
|
printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg));
|
|
break;
|
|
case ARM64_OP_IMM:
|
|
printf("\t\toperands[%u].type: IMM = 0x%x\n", i, op->imm);
|
|
break;
|
|
case ARM64_OP_FP:
|
|
printf("\t\toperands[%u].type: FP = %f\n", i, op->fp);
|
|
break;
|
|
case ARM64_OP_MEM:
|
|
printf("\t\toperands[%u].type: MEM\n", i);
|
|
if (op->mem.base != ARM64_REG_INVALID)
|
|
printf("\t\t\toperands[%u].mem.base: REG = %s\n", i, cs_reg_name(handle, op->mem.base));
|
|
if (op->mem.index != ARM64_REG_INVALID)
|
|
printf("\t\t\toperands[%u].mem.index: REG = %s\n", i, cs_reg_name(handle, op->mem.index));
|
|
if (op->mem.disp != 0)
|
|
printf("\t\t\toperands[%u].mem.disp: 0x%x\n", i, op->mem.disp);
|
|
|
|
break;
|
|
case ARM64_OP_CIMM:
|
|
printf("\t\toperands[%u].type: C-IMM = %u\n", i, op->imm);
|
|
break;
|
|
}
|
|
|
|
if (op->shift.type != ARM64_SFT_INVALID &&
|
|
op->shift.value)
|
|
printf("\t\t\tShift: type = %u, value = %u\n",
|
|
op->shift.type, op->shift.value);
|
|
|
|
if (op->ext != ARM64_EXT_INVALID)
|
|
printf("\t\t\tExt: %u\n", op->ext);
|
|
}
|
|
|
|
if (arm64->cc != ARM64_CC_INVALID)
|
|
printf("\tCode condition: %u\n", arm64->cc);
|
|
|
|
if (arm64->update_flags)
|
|
printf("\tUpdate-flags: True\n");
|
|
|
|
if (arm64->writeback)
|
|
printf("\tWrite-back: True\n");
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
static void test()
|
|
{
|
|
//#define ARM64_CODE "\xe1\x0b\x40\xb9" // ldr w1, [sp, #0x8]
|
|
//#define ARM64_CODE "\x21\x7c\x00\x53" // lsr w1, w1, #0x0
|
|
//#define ARM64_CODE "\x21\x7c\x02\x9b"
|
|
//#define ARM64_CODE "\x20\x04\x81\xda" // csneg x0, x1, x1, eq | cneg x0, x1, ne
|
|
//#define ARM64_CODE "\x20\x08\x02\x8b" // add x0, x1, x2, lsl #2
|
|
|
|
//#define ARM64_CODE "\x20\xcc\x20\x8b"
|
|
//#define ARM64_CODE "\xe2\x8f\x40\xa9" // ldp x2, x3, [sp, #8]
|
|
//#define ARM64_CODE "\x20\x40\x60\x1e" // fmov d0, d1
|
|
//#define ARM64_CODE "\x20\x7c\x7d\x93" // sbfiz x0, x1, #3, #32
|
|
|
|
//#define ARM64_CODE "\x20\x88\x43\xb3" // bfxil x0, x1, #3, #32
|
|
//#define ARM64_CODE "\x01\x71\x08\xd5" // sys #0, c7, c1, #0, x1
|
|
//#define ARM64_CODE "\x00\x71\x28\xd5" // sysl x0, #0, c7, c1, #0
|
|
|
|
//#define ARM64_CODE "\x20\xf4\x18\x9e" // fcvtzs x0, s1, #3
|
|
//#define ARM64_CODE "\x20\x74\x0b\xd5" // dc zva, x0: FIXME: handle as "sys" insn
|
|
//#define ARM64_CODE "\x00\x90\x24\x1e" // fmov s0, ##10.00000000
|
|
//#define ARM64_CODE "\xe1\x0b\x40\xb9" // ldr w1, [sp, #0x8]
|
|
//#define ARM64_CODE "\x20\x78\x62\xf8" // ldr x0, [x1, x2, lsl #3]
|
|
//#define ARM64_CODE "\x41\x14\x44\xb3" // bfm x1, x2, #4, #5
|
|
//#define ARM64_CODE "\x80\x23\x29\xd5" // sysl x0, #1, c2, c3, #4
|
|
//#define ARM64_CODE "\x20\x00\x24\x1e" // fcvtas w0, s1
|
|
//#define ARM64_CODE "\x41\x04\x40\xd2" // eor x1, x2, #0x3
|
|
//#define ARM64_CODE "\x9f\x33\x03\xd5" // dsb osh
|
|
//#define ARM64_CODE "\x41\x10\x23\x8a" // bic x1, x2, x3, lsl #4
|
|
//#define ARM64_CODE "\x16\x41\x3c\xd5" // mrs x22, sp_el1
|
|
//#define ARM64_CODE "\x41\x1c\x63\x0e" // bic v1.8b, v2.8b, v3.8b
|
|
//#define ARM64_CODE "\x41\xd4\xe3\x6e" // fabd v1.2d, v2.2d, v3.2d
|
|
//#define ARM64_CODE "\x20\x8c\x62\x2e" // cmeq v0.4h, v1.4h, v2.4h
|
|
//#define ARM64_CODE "\x20\x98\x20\x4e" // cmeq v0.16b, v1.16b, #0
|
|
//#define ARM64_CODE "\x20\x2c\x05\x4e" // smov x0, v1.b[2]
|
|
//#define ARM64_CODE "\x21\xe4\x00\x2f" // movi d1, #0xff
|
|
//#define ARM64_CODE "\x60\x78\x08\xd5" // at s1e0w, x0 // FIXME: same problem with dc ZVA
|
|
//#define ARM64_CODE "\x20\x00\xa0\xf2" // movk x0, #1, lsl #16
|
|
//#define ARM64_CODE "\x20\x08\x00\xb1" // adds x0, x1, #0x2
|
|
//#define ARM64_CODE "\x41\x04\x00\x0f" // movi v1.2s, #0x2
|
|
//#define ARM64_CODE "\x06\x00\x00\x14" // b 0x44
|
|
//#define ARM64_CODE "\x00\x90\x24\x1e" // fmov s0, ##10.00000000
|
|
//#define ARM64_CODE "\x5f\x3f\x03\xd5" // clrex
|
|
//#define ARM64_CODE "\x5f\x3e\x03\xd5" // clrex #14
|
|
//#define ARM64_CODE "\x20\x00\x02\xab" // adds x0, x1, x2 (alias of adds x0, x1, x2, lsl #0)
|
|
//#define ARM64_CODE "\x20\xf4\x18\x9e" // fcvtzs x0, s1, #3
|
|
//#define ARM64_CODE "\x20\xfc\x02\x9b" // mneg x0, x1, x2
|
|
//#define ARM64_CODE "\xd0\xb6\x1e\xd5" // msr s3_6_c11_c6_6, x16
|
|
#define ARM64_CODE "\x21\x7c\x02\x9b\x21\x7c\x00\x53\x00\x40\x21\x4b\xe1\x0b\x40\xb9\x20\x04\x81\xda\x20\x08\x02\x8b"
|
|
|
|
struct platform platforms[] = {
|
|
{
|
|
CS_ARCH_ARM64,
|
|
CS_MODE_ARM,
|
|
(unsigned char *)ARM64_CODE,
|
|
sizeof(ARM64_CODE) - 1,
|
|
"ARM-64"
|
|
},
|
|
};
|
|
|
|
uint64_t address = 0x2c;
|
|
cs_insn *insn;
|
|
int i;
|
|
size_t count;
|
|
|
|
for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) {
|
|
cs_err err = cs_open(platforms[i].arch, platforms[i].mode, &handle);
|
|
if (err) {
|
|
printf("Failed on cs_open() with error returned: %u\n", err);
|
|
continue;
|
|
}
|
|
|
|
cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON);
|
|
|
|
count = cs_disasm_ex(handle, platforms[i].code, platforms[i].size, address, 0, &insn);
|
|
if (count) {
|
|
size_t j;
|
|
|
|
printf("****************\n");
|
|
printf("Platform: %s\n", platforms[i].comment);
|
|
print_string_hex("Code:", platforms[i].code, platforms[i].size);
|
|
printf("Disasm:\n");
|
|
|
|
for (j = 0; j < count; j++) {
|
|
printf("0x%"PRIx64":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str);
|
|
print_insn_detail(&insn[j]);
|
|
}
|
|
printf("0x%"PRIx64":\n", insn[j-1].address + insn[j-1].size);
|
|
|
|
// free memory allocated by cs_disasm_ex()
|
|
cs_free(insn, count);
|
|
} else {
|
|
printf("****************\n");
|
|
printf("Platform: %s\n", platforms[i].comment);
|
|
print_string_hex("Code:", platforms[i].code, platforms[i].size);
|
|
printf("ERROR: Failed to disasm given code!\n");
|
|
}
|
|
|
|
printf("\n");
|
|
|
|
cs_close(&handle);
|
|
}
|
|
}
|
|
|
|
int main()
|
|
{
|
|
test();
|
|
|
|
return 0;
|
|
}
|
|
|