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Remove PC registers from the register profile

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Dhruv Maroo 2022-12-30 22:23:47 +05:30 committed by Anton Kochkov
parent 7d64d8b2bf
commit 388404880d
1 changed files with 10 additions and 3 deletions
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13
librz/analysis/arch/x86/x86_il.c
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@ -349,6 +349,7 @@ static const char *x86_bound_regs_16[] = {
"bx", /* X86_REG_BX */
"cx", /* X86_REG_CX */
"dx", /* X86_REG_DX */
// "ip", /* X86_REG_IP */
"sp", /* X86_REG_SP */
"bp", /* X86_REG_BP */
"si", /* X86_REG_SI */
@ -365,6 +366,7 @@ static const char *x86_bound_regs_32[] = {
"ebx", /* X86_REG_EBX */
"ecx", /* X86_REG_ECX */
"edx", /* X86_REG_EDX */
// "eip", /* X86_REG_EIP */
"esp", /* X86_REG_ESP */
"ebp", /* X86_REG_EBP */
"esi", /* X86_REG_ESI */
@ -388,6 +390,7 @@ static const char *x86_bound_regs_64[] = {
"rbx", /* X86_REG_RBX */
"rcx", /* X86_REG_RCX */
"rdx", /* X86_REG_RDX */
// "rip", /* X86_REG_RIP */
"rsp", /* X86_REG_RSP */
"rbp", /* X86_REG_RBP */
"rsi", /* X86_REG_RSI */
@ -2787,17 +2790,21 @@ IL_LIFTER(call) {
* Like whether the call is a near or far call, absolute or relative call, etc.
* Implementing it accurately will require exceptions, task switching,
* shadow stack, CPU internal flags, segmentation support
* Just pushing the current program counter is a good approcimation for now
* Just pushing the current program counter is a good approximation for now
* shadow stack, CPU internal flags, segmentation support
* Just pushing the current program counter is a good approcimation for now
* We also need to push the code segment register in case 16 and 32 bit modes.
*/
RzILOpEffect *push_stuff = NULL;
if (analysis->bits == 64) {
return x86_push_helper(U64(pc), 2);
push_stuff = x86_push_helper(U64(pc), 2);
} else {
return SEQ4(SETL("_cs", UNSIGNED(analysis->bits, x86_il_get_reg(X86_REG_CS))), x86_push_helper(VARL("_cs"), analysis->bits / BITS_PER_BYTE), SETL("_pc", UN(analysis->bits, pc)), x86_push_helper(VARL("_pc"), analysis->bits / BITS_PER_BYTE));
push_stuff = SEQ4(SETL("_cs", UNSIGNED(analysis->bits, x86_il_get_reg(X86_REG_CS))), x86_push_helper(VARL("_cs"), analysis->bits / BITS_PER_BYTE), SETL("_pc", UN(analysis->bits, pc)), x86_push_helper(VARL("_pc"), analysis->bits / BITS_PER_BYTE));
}
return SEQ2(push_stuff, JMP(x86_il_get_op(0)));
}
/**