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rizin/librz/analysis/op.c
wingdeans a6a7a5f530 Fix annotation inconsistencies
2022-08-03 00:29:56 -04:00

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// SPDX-FileCopyrightText: 2010-2020 pancake <pancake@nopcode.org>
// SPDX-FileCopyrightText: 2010-2020 nibble <nibble.ds@gmail.com>
// SPDX-License-Identifier: LGPL-3.0-only
#include <rz_analysis.h>
#include <rz_util.h>
#include <rz_list.h>
RZ_API RzAnalysisOp *rz_analysis_op_new(void) {
RzAnalysisOp *op = RZ_NEW(RzAnalysisOp);
rz_analysis_op_init(op);
return op;
}
RZ_API RzList /*<RzAnalysisOp *>*/ *rz_analysis_op_list_new(void) {
RzList *list = rz_list_new();
if (list) {
list->free = &rz_analysis_op_free;
}
return list;
}
RZ_API void rz_analysis_op_init(RzAnalysisOp *op) {
if (op) {
memset(op, 0, sizeof(*op));
op->addr = UT64_MAX;
op->jump = UT64_MAX;
op->fail = UT64_MAX;
op->ptr = UT64_MAX;
op->refptr = 0;
op->val = UT64_MAX;
op->disp = UT64_MAX;
op->mmio_address = UT64_MAX;
}
}
RZ_API bool rz_analysis_op_fini(RzAnalysisOp *op) {
if (!op) {
return false;
}
rz_analysis_value_free(op->src[0]);
rz_analysis_value_free(op->src[1]);
rz_analysis_value_free(op->src[2]);
op->src[0] = NULL;
op->src[1] = NULL;
op->src[2] = NULL;
rz_analysis_value_free(op->dst);
op->dst = NULL;
rz_list_free(op->access);
op->access = NULL;
rz_strbuf_fini(&op->opex);
rz_strbuf_fini(&op->esil);
rz_analysis_switch_op_free(op->switch_op);
op->switch_op = NULL;
RZ_FREE(op->mnemonic);
rz_il_op_effect_free(op->il_op);
op->il_op = NULL;
return true;
}
RZ_API void rz_analysis_op_free(void *op) {
if (!op) {
return;
}
rz_analysis_op_fini(op);
memset(op, 0, sizeof(RzAnalysisOp));
free(op);
}
static int defaultCycles(RzAnalysisOp *op) {
switch (op->type) {
case RZ_ANALYSIS_OP_TYPE_PUSH:
case RZ_ANALYSIS_OP_TYPE_POP:
case RZ_ANALYSIS_OP_TYPE_STORE:
case RZ_ANALYSIS_OP_TYPE_LOAD:
return 2;
case RZ_ANALYSIS_OP_TYPE_LEA:
case RZ_ANALYSIS_OP_TYPE_MOV:
case RZ_ANALYSIS_OP_TYPE_NOP:
return 1;
case RZ_ANALYSIS_OP_TYPE_TRAP:
case RZ_ANALYSIS_OP_TYPE_SWI:
return 4;
case RZ_ANALYSIS_OP_TYPE_SYNC:
return 4;
case RZ_ANALYSIS_OP_TYPE_RET:
case RZ_ANALYSIS_OP_TYPE_JMP:
case RZ_ANALYSIS_OP_TYPE_RJMP:
case RZ_ANALYSIS_OP_TYPE_CALL:
return 4;
default:
return 1;
}
}
RZ_API int rz_analysis_op(RzAnalysis *analysis, RzAnalysisOp *op, ut64 addr, const ut8 *data, int len, RzAnalysisOpMask mask) {
rz_analysis_op_init(op);
rz_return_val_if_fail(analysis && op && len > 0, -1);
int ret = RZ_MIN(2, len);
if (len > 0 && analysis->cur && analysis->cur->op) {
// use core binding to set asm.bits correctly based on the addr
// this is because of the hassle of arm/thumb
if (analysis && analysis->coreb.archbits) {
analysis->coreb.archbits(analysis->coreb.core, addr);
}
if (analysis->pcalign && addr % analysis->pcalign) {
op->type = RZ_ANALYSIS_OP_TYPE_ILL;
op->addr = addr;
// RZ_LOG_DEBUG("Unaligned instruction for %d bits at 0x%"PFMT64x"\n", analysis->bits, addr);
op->size = 1;
return -1;
}
ret = analysis->cur->op(analysis, op, addr, data, len, mask);
if (ret < 1) {
op->type = RZ_ANALYSIS_OP_TYPE_ILL;
}
op->addr = addr;
/* consider at least 1 byte to be part of the opcode */
if (op->nopcode < 1) {
op->nopcode = 1;
}
} else if (!memcmp(data, "\xff\xff\xff\xff", RZ_MIN(4, len))) {
op->type = RZ_ANALYSIS_OP_TYPE_ILL;
} else {
op->type = RZ_ANALYSIS_OP_TYPE_MOV;
if (op->cycles == 0) {
op->cycles = defaultCycles(op);
}
}
if (!op->mnemonic && (mask & RZ_ANALYSIS_OP_MASK_DISASM)) {
RZ_LOG_DEBUG("Warning: unhandled RZ_ANALYSIS_OP_MASK_DISASM in rz_analysis_op\n");
}
if (mask & RZ_ANALYSIS_OP_MASK_HINT) {
RzAnalysisHint *hint = rz_analysis_hint_get(analysis, addr);
if (hint) {
rz_analysis_op_hint(op, hint);
rz_analysis_hint_free(hint);
}
}
return ret;
}
RZ_API RzAnalysisOp *rz_analysis_op_copy(RzAnalysisOp *op) {
RzAnalysisOp *nop = RZ_NEW0(RzAnalysisOp);
if (!nop) {
return NULL;
}
*nop = *op;
if (op->mnemonic) {
nop->mnemonic = strdup(op->mnemonic);
if (!nop->mnemonic) {
free(nop);
return NULL;
}
} else {
nop->mnemonic = NULL;
}
nop->src[0] = rz_analysis_value_copy(op->src[0]);
nop->src[1] = rz_analysis_value_copy(op->src[1]);
nop->src[2] = rz_analysis_value_copy(op->src[2]);
nop->dst = rz_analysis_value_copy(op->dst);
if (op->access) {
RzListIter *it;
RzAnalysisValue *val;
RzList *naccess = rz_list_newf((RzListFree)rz_analysis_value_free);
rz_list_foreach (op->access, it, val) {
rz_list_append(naccess, rz_analysis_value_copy(val));
}
nop->access = naccess;
}
rz_strbuf_init(&nop->esil);
rz_strbuf_copy(&nop->esil, &op->esil);
return nop;
}
RZ_API bool rz_analysis_op_nonlinear(int t) {
t &= RZ_ANALYSIS_OP_TYPE_MASK;
switch (t) {
// call
case RZ_ANALYSIS_OP_TYPE_CALL:
case RZ_ANALYSIS_OP_TYPE_RCALL:
case RZ_ANALYSIS_OP_TYPE_ICALL:
case RZ_ANALYSIS_OP_TYPE_UCALL:
case RZ_ANALYSIS_OP_TYPE_IRCALL:
case RZ_ANALYSIS_OP_TYPE_UCCALL:
// jmp
case RZ_ANALYSIS_OP_TYPE_JMP:
case RZ_ANALYSIS_OP_TYPE_MJMP:
case RZ_ANALYSIS_OP_TYPE_UJMP:
case RZ_ANALYSIS_OP_TYPE_CJMP:
case RZ_ANALYSIS_OP_TYPE_UCJMP:
case RZ_ANALYSIS_OP_TYPE_RJMP:
case RZ_ANALYSIS_OP_TYPE_IJMP:
case RZ_ANALYSIS_OP_TYPE_IRJMP:
// trap| ill| unk
case RZ_ANALYSIS_OP_TYPE_TRAP:
case RZ_ANALYSIS_OP_TYPE_ILL:
case RZ_ANALYSIS_OP_TYPE_UNK:
case RZ_ANALYSIS_OP_TYPE_SWI:
case RZ_ANALYSIS_OP_TYPE_RET:
return true;
default:
return false;
}
}
RZ_API bool rz_analysis_op_ismemref(int t) {
t &= RZ_ANALYSIS_OP_TYPE_MASK;
switch (t) {
case RZ_ANALYSIS_OP_TYPE_LOAD:
case RZ_ANALYSIS_OP_TYPE_MOV:
case RZ_ANALYSIS_OP_TYPE_STORE:
case RZ_ANALYSIS_OP_TYPE_LEA:
case RZ_ANALYSIS_OP_TYPE_CMP:
return true;
default:
return false;
}
}
static struct optype {
int type;
const char *name;
} optypes[] = {
{ RZ_ANALYSIS_OP_TYPE_IO, "io" },
{ RZ_ANALYSIS_OP_TYPE_ACMP, "acmp" },
{ RZ_ANALYSIS_OP_TYPE_ADD, "add" },
{ RZ_ANALYSIS_OP_TYPE_SYNC, "sync" },
{ RZ_ANALYSIS_OP_TYPE_AND, "and" },
{ RZ_ANALYSIS_OP_TYPE_CALL, "call" },
{ RZ_ANALYSIS_OP_TYPE_CCALL, "ccall" },
{ RZ_ANALYSIS_OP_TYPE_CJMP, "cjmp" },
{ RZ_ANALYSIS_OP_TYPE_MJMP, "mjmp" },
{ RZ_ANALYSIS_OP_TYPE_CMP, "cmp" },
{ RZ_ANALYSIS_OP_TYPE_CRET, "cret" },
{ RZ_ANALYSIS_OP_TYPE_ILL, "ill" },
{ RZ_ANALYSIS_OP_TYPE_JMP, "jmp" },
{ RZ_ANALYSIS_OP_TYPE_LEA, "lea" },
{ RZ_ANALYSIS_OP_TYPE_LEAVE, "leave" },
{ RZ_ANALYSIS_OP_TYPE_LOAD, "load" },
{ RZ_ANALYSIS_OP_TYPE_NEW, "new" },
{ RZ_ANALYSIS_OP_TYPE_MOD, "mod" },
{ RZ_ANALYSIS_OP_TYPE_CMOV, "cmov" },
{ RZ_ANALYSIS_OP_TYPE_MOV, "mov" },
{ RZ_ANALYSIS_OP_TYPE_CAST, "cast" },
{ RZ_ANALYSIS_OP_TYPE_MUL, "mul" },
{ RZ_ANALYSIS_OP_TYPE_DIV, "div" },
{ RZ_ANALYSIS_OP_TYPE_NOP, "nop" },
{ RZ_ANALYSIS_OP_TYPE_NOT, "not" },
{ RZ_ANALYSIS_OP_TYPE_NULL, "null" },
{ RZ_ANALYSIS_OP_TYPE_OR, "or" },
{ RZ_ANALYSIS_OP_TYPE_POP, "pop" },
{ RZ_ANALYSIS_OP_TYPE_PUSH, "push" },
{ RZ_ANALYSIS_OP_TYPE_REP, "rep" },
{ RZ_ANALYSIS_OP_TYPE_RET, "ret" },
{ RZ_ANALYSIS_OP_TYPE_ROL, "rol" },
{ RZ_ANALYSIS_OP_TYPE_ROR, "ror" },
{ RZ_ANALYSIS_OP_TYPE_SAL, "sal" },
{ RZ_ANALYSIS_OP_TYPE_SAR, "sar" },
{ RZ_ANALYSIS_OP_TYPE_SHL, "shl" },
{ RZ_ANALYSIS_OP_TYPE_SHR, "shr" },
{ RZ_ANALYSIS_OP_TYPE_STORE, "store" },
{ RZ_ANALYSIS_OP_TYPE_SUB, "sub" },
{ RZ_ANALYSIS_OP_TYPE_SWI, "swi" },
{ RZ_ANALYSIS_OP_TYPE_CSWI, "cswi" },
{ RZ_ANALYSIS_OP_TYPE_SWITCH, "switch" },
{ RZ_ANALYSIS_OP_TYPE_TRAP, "trap" },
{ RZ_ANALYSIS_OP_TYPE_UCALL, "ucall" },
{ RZ_ANALYSIS_OP_TYPE_RCALL, "rcall" },
{ RZ_ANALYSIS_OP_TYPE_ICALL, "icall" },
{ RZ_ANALYSIS_OP_TYPE_IRCALL, "ircall" },
{ RZ_ANALYSIS_OP_TYPE_UCCALL, "uccall" },
{ RZ_ANALYSIS_OP_TYPE_UCJMP, "ucjmp" },
{ RZ_ANALYSIS_OP_TYPE_UJMP, "ujmp" },
{ RZ_ANALYSIS_OP_TYPE_RJMP, "rjmp" },
{ RZ_ANALYSIS_OP_TYPE_IJMP, "ijmp" },
{ RZ_ANALYSIS_OP_TYPE_IRJMP, "irjmp" },
{ RZ_ANALYSIS_OP_TYPE_UNK, "unk" },
{ RZ_ANALYSIS_OP_TYPE_UPUSH, "upush" },
{ RZ_ANALYSIS_OP_TYPE_RPUSH, "rpush" },
{ RZ_ANALYSIS_OP_TYPE_XCHG, "xchg" },
{ RZ_ANALYSIS_OP_TYPE_XOR, "xor" },
{ RZ_ANALYSIS_OP_TYPE_CASE, "case" },
{ RZ_ANALYSIS_OP_TYPE_CPL, "cpl" },
{ RZ_ANALYSIS_OP_TYPE_CRYPTO, "crypto" }
};
/**
* Return the op type corresponding the given name
* \param name string, name of the optype
* \return type int, id of the op type (one of \link _RzAnalysisOpType \endlink)
*/
RZ_API int rz_analysis_optype_from_string(RZ_NONNULL const char *name) {
rz_return_val_if_fail(name, -1);
int i;
for (i = 0; RZ_ARRAY_SIZE(optypes); i++) {
if (!strcmp(optypes[i].name, name)) {
return optypes[i].type;
}
}
return -1;
}
/**
* Return the name of the given op type
* \param type int, id of the op type (one of \link _RzAnalysisOpType \endlink)
* \return name string, string, name of the optype
*/
RZ_API const char *rz_analysis_optype_to_string(int type) {
int i;
for (i = 0; i < RZ_ARRAY_SIZE(optypes); i++) {
if (optypes[i].type == type) {
return optypes[i].name;
}
}
type &= RZ_ANALYSIS_OP_TYPE_MASK;
for (i = 0; i < RZ_ARRAY_SIZE(optypes); i++) {
if (optypes[i].type == type) {
return optypes[i].name;
}
}
return "undefined";
}
RZ_API const char *rz_analysis_op_to_esil_string(RzAnalysis *analysis, RzAnalysisOp *op) {
return rz_strbuf_get(&op->esil);
}
// TODO: use esil here?
RZ_API char *rz_analysis_op_to_string(RzAnalysis *analysis, RzAnalysisOp *op) {
RzAnalysisBlock *bb;
RzAnalysisFunction *f;
char *cstr, ret[128];
char *r0 = rz_analysis_value_to_string(op->dst);
char *a0 = rz_analysis_value_to_string(op->src[0]);
char *a1 = rz_analysis_value_to_string(op->src[1]);
if (!r0) {
r0 = strdup("?");
}
if (!a0) {
a0 = strdup("?");
}
if (!a1) {
a1 = strdup("?");
}
switch (op->type) {
case RZ_ANALYSIS_OP_TYPE_MOV:
snprintf(ret, sizeof(ret), "%s = %s", r0, a0);
break;
case RZ_ANALYSIS_OP_TYPE_CJMP:
if ((bb = rz_analysis_find_most_relevant_block_in(analysis, op->addr))) {
cstr = rz_analysis_cond_to_string(bb->cond);
snprintf(ret, sizeof(ret), "if (%s) goto 0x%" PFMT64x, cstr, op->jump);
free(cstr);
} else {
snprintf(ret, sizeof(ret), "if (%s) goto 0x%" PFMT64x, "?", op->jump);
}
break;
case RZ_ANALYSIS_OP_TYPE_JMP:
snprintf(ret, sizeof(ret), "goto 0x%" PFMT64x, op->jump);
break;
case RZ_ANALYSIS_OP_TYPE_UJMP:
case RZ_ANALYSIS_OP_TYPE_RJMP:
case RZ_ANALYSIS_OP_TYPE_IJMP:
case RZ_ANALYSIS_OP_TYPE_IRJMP:
snprintf(ret, sizeof(ret), "goto %s", r0);
break;
case RZ_ANALYSIS_OP_TYPE_PUSH:
case RZ_ANALYSIS_OP_TYPE_UPUSH:
case RZ_ANALYSIS_OP_TYPE_RPUSH:
snprintf(ret, sizeof(ret), "push %s", a0);
break;
case RZ_ANALYSIS_OP_TYPE_POP:
snprintf(ret, sizeof(ret), "pop %s", r0);
break;
case RZ_ANALYSIS_OP_TYPE_UCALL:
case RZ_ANALYSIS_OP_TYPE_RCALL:
case RZ_ANALYSIS_OP_TYPE_ICALL:
case RZ_ANALYSIS_OP_TYPE_IRCALL:
snprintf(ret, sizeof(ret), "%s()", r0);
break;
case RZ_ANALYSIS_OP_TYPE_CALL:
f = rz_analysis_get_fcn_in(analysis, op->jump, RZ_ANALYSIS_FCN_TYPE_NULL);
if (f) {
snprintf(ret, sizeof(ret), "%s()", f->name);
} else {
snprintf(ret, sizeof(ret), "0x%" PFMT64x "()", op->jump);
}
break;
case RZ_ANALYSIS_OP_TYPE_CCALL:
f = rz_analysis_get_fcn_in(analysis, op->jump, RZ_ANALYSIS_FCN_TYPE_NULL);
if ((bb = rz_analysis_find_most_relevant_block_in(analysis, op->addr))) {
cstr = rz_analysis_cond_to_string(bb->cond);
if (f) {
snprintf(ret, sizeof(ret), "if (%s) %s()", cstr, f->name);
} else {
snprintf(ret, sizeof(ret), "if (%s) 0x%" PFMT64x "()", cstr, op->jump);
}
free(cstr);
} else {
if (f) {
snprintf(ret, sizeof(ret), "if (unk) %s()", f->name);
} else {
snprintf(ret, sizeof(ret), "if (unk) 0x%" PFMT64x "()", op->jump);
}
}
break;
case RZ_ANALYSIS_OP_TYPE_ADD:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "%s += %s", r0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s + %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_SUB:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "%s -= %s", r0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s - %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_MUL:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "%s *= %s", r0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s * %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_DIV:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "%s /= %s", r0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s / %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_AND:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "%s &= %s", r0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s & %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_OR:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "%s |= %s", r0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s | %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_XOR:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "%s ^= %s", r0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s ^ %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_LEA:
snprintf(ret, sizeof(ret), "%s -> %s", r0, a0);
break;
case RZ_ANALYSIS_OP_TYPE_CMP:
memcpy(ret, ";", 2);
break;
case RZ_ANALYSIS_OP_TYPE_NOP:
memcpy(ret, "nop", 4);
break;
case RZ_ANALYSIS_OP_TYPE_RET:
memcpy(ret, "ret", 4);
break;
case RZ_ANALYSIS_OP_TYPE_CRET:
if ((bb = rz_analysis_find_most_relevant_block_in(analysis, op->addr))) {
cstr = rz_analysis_cond_to_string(bb->cond);
snprintf(ret, sizeof(ret), "if (%s) ret", cstr);
free(cstr);
} else {
strcpy(ret, "if (unk) ret");
}
break;
case RZ_ANALYSIS_OP_TYPE_LEAVE:
memcpy(ret, "leave", 6);
break;
case RZ_ANALYSIS_OP_TYPE_MOD:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "%s %%= %s", r0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s %% %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_XCHG:
if (!a1 || !strcmp(a0, a1)) {
snprintf(ret, sizeof(ret), "tmp = %s; %s = %s; %s = tmp", r0, r0, a0, a0);
} else {
snprintf(ret, sizeof(ret), "%s = %s ^ %s", r0, a0, a1);
}
break;
case RZ_ANALYSIS_OP_TYPE_ROL:
case RZ_ANALYSIS_OP_TYPE_ROR:
case RZ_ANALYSIS_OP_TYPE_SWITCH:
case RZ_ANALYSIS_OP_TYPE_CASE:
RZ_LOG_DEBUG("Command not implemented.\n");
free(r0);
free(a0);
free(a1);
return NULL;
default:
free(r0);
free(a0);
free(a1);
return NULL;
}
free(r0);
free(a0);
free(a1);
return strdup(ret);
}
RZ_API const char *rz_analysis_stackop_tostring(int s) {
switch (s) {
case RZ_ANALYSIS_STACK_NULL:
return "null";
case RZ_ANALYSIS_STACK_NOP:
return "nop";
case RZ_ANALYSIS_STACK_INC:
return "inc";
case RZ_ANALYSIS_STACK_GET:
return "get";
case RZ_ANALYSIS_STACK_SET:
return "set";
case RZ_ANALYSIS_STACK_RESET:
return "reset";
}
return "unk";
}
static const struct {
int id;
const char *name;
} op_families[] = {
{ RZ_ANALYSIS_OP_FAMILY_CPU, "cpu" },
{ RZ_ANALYSIS_OP_FAMILY_FPU, "fpu" },
{ RZ_ANALYSIS_OP_FAMILY_MMX, "mmx" },
{ RZ_ANALYSIS_OP_FAMILY_SSE, "sse" },
{ RZ_ANALYSIS_OP_FAMILY_PRIV, "priv" },
{ RZ_ANALYSIS_OP_FAMILY_VIRT, "virt" },
{ RZ_ANALYSIS_OP_FAMILY_CRYPTO, "crpt" },
{ RZ_ANALYSIS_OP_FAMILY_IO, "io" },
{ RZ_ANALYSIS_OP_FAMILY_SECURITY, "sec" },
{ RZ_ANALYSIS_OP_FAMILY_THREAD, "thread" },
};
/**
* Return the name of the given op family
* \param id int, id of the operation family (one of \link RzAnalysisOpFamily \endlink)
* \return name string, name of the op family
*/
RZ_API const char *rz_analysis_op_family_to_string(int id) {
int i;
for (i = 0; i < RZ_ARRAY_SIZE(op_families); i++) {
if (op_families[i].id == id) {
return op_families[i].name;
}
}
return NULL;
}
/**
* Return the op family id given its name
* \param name string, name of the op family
* \return id int, id of the operation family (one of \link RzAnalysisOpFamily \endlink)
*/
RZ_API int rz_analysis_op_family_from_string(RZ_NONNULL const char *name) {
int i;
rz_return_val_if_fail(name, RZ_ANALYSIS_OP_FAMILY_UNKNOWN);
for (i = 0; i < RZ_ARRAY_SIZE(op_families); i++) {
if (!strcmp(name, op_families[i].name)) {
return op_families[i].id;
}
}
return RZ_ANALYSIS_OP_FAMILY_UNKNOWN;
}
/* apply hint to op, return the number of hints applied */
RZ_API int rz_analysis_op_hint(RzAnalysisOp *op, RzAnalysisHint *hint) {
int changes = 0;
if (hint) {
if (hint->val != UT64_MAX) {
op->val = hint->val;
changes++;
}
if (hint->type > 0) {
op->type = hint->type;
changes++;
}
if (hint->jump != UT64_MAX) {
op->jump = hint->jump;
changes++;
}
if (hint->fail != UT64_MAX) {
op->fail = hint->fail;
changes++;
}
if (hint->opcode) {
/* XXX: this is not correct */
free(op->mnemonic);
op->mnemonic = strdup(hint->opcode);
changes++;
}
if (hint->esil) {
rz_strbuf_set(&op->esil, hint->esil);
changes++;
}
if (hint->size) {
op->size = hint->size;
changes++;
}
}
return changes;
}
// returns the '33' in 'rax + 33'
// returns value for the given register name in specific address / range
RZ_API int rz_analysis_op_reg_delta(RzAnalysis *analysis, ut64 addr, const char *name) {
int delta = 0;
ut8 buf[32];
analysis->iob.read_at(analysis->iob.io, addr, buf, sizeof(buf));
RzAnalysisOp op;
rz_analysis_op_init(&op);
if (rz_analysis_op(analysis, &op, addr, buf, sizeof(buf), RZ_ANALYSIS_OP_MASK_ALL) > 0) {
if (op.dst && op.dst->reg && op.dst->reg->name && (!name || !strcmp(op.dst->reg->name, name))) {
if (op.src[0]) {
delta = op.src[0]->delta;
}
}
}
rz_analysis_op_fini(&op);
return delta;
}
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