/* reference (accurate but expensive) disassembly */
const char* emu_disasm_ref(unsigned int pc, uint8_t bits) {
if (!rasm) {
/* rasm2 configuration defaults */
static const char arch[] = {"arm"}; /* ARM ISA */
static const int big_endian = 0; /* ARMv7 is little endian */
rasm = r_asm_new();
/* R_API int r_asm_setup(RAsm *a, const char *arch, int bits, int big_endian); */
r_asm_setup(rasm, arch, bits, big_endian);
}
assert(rasm != NULL);
r_asm_set_bits(rasm, bits);
r_asm_set_big_endian(rasm, bits == 16); /* 16: big endian, 32: little endian */
/* printf("emu: %0lx: %0x\n", cpu(pc), *(unsigned int *)cpu(pc)); // if all else fails */
static RAsmOp rop;
const int len = bits / 8; /* disassemble 4 bytes (A32) or 2 bytes (T16) */
uint32_t ins = *(const uint32_t *)pc;
if (bits == 16) ins &= 0xffff;
r_asm_set_pc(rasm, pc);
// printf("r_asm_disassemble() pc: %x bits: %d len: %d\n", pc, bits, len);
r_asm_disassemble(rasm, &rop, (const unsigned char *)pc, len);
printf("disas: %x %x %s\n", pc, ins, rop.buf_asm);
return rop.buf_asm;
}
static int config_asmbits_callback(void *user, void *data) {
const char *asmos, *asmarch;
RCore *core = (RCore *) user;
RConfigNode *node = (RConfigNode *) data;
int ret = r_asm_set_bits (core->assembler, node->i_value);
if (ret == R_FALSE) {
RAsmPlugin *h = core->assembler->cur;
if (h) {
eprintf ("Cannot set bits %"PFMT64d" to '%s'\n",
node->i_value, h->name);
} else {
eprintf ("e asm.bits: Cannot set value, no plugins defined yet\n");
ret = R_TRUE;
}
}
if (!r_anal_set_bits (core->anal, node->i_value))
eprintf ("asm.arch: Cannot setup '%i' bits analysis engine\n", (int)node->i_value);
if (core->dbg && core->anal && core->anal->cur)
r_debug_set_arch (core->dbg, core->anal->cur->arch, node->i_value);
asmos = r_config_get (core->config, "asm.os");
asmarch = r_config_get (core->config, "asm.arch");
if (core && core->anal)
if (!r_syscall_setup (core->anal->syscall, asmarch,
asmos, node->i_value)) {
//eprintf ("asm.arch: Cannot setup syscall '%s/%s' from '%s'\n",
// node->value, asmos, R2_LIBDIR"/radare2/"R2_VERSION"/syscall");
}
return ret;
}