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Allow user to instrument cpuid instruction

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This commit is contained in:
mio
2021-10-05 17:15:49 +02:00
parent af60b4dfab
commit 9d8a309fbf
3 changed files with 44 additions and 1 deletions
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26
tests/unit/test_x86.c
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@@ -525,6 +525,31 @@ static void test_x86_sysenter() {
OK(uc_close(uc));
}
static void test_x86_hook_cpuid_callback(uc_engine* uc, void* data) {
int reg = 7;
OK(uc_reg_write(uc, UC_X86_REG_EAX, &reg));
}
static void test_x86_hook_cpuid() {
uc_engine* uc;
char code[] = "\x40\x0F\xA2"; // INC EAX; CPUID
uc_hook h;
int reg;
uc_common_setup(&uc, UC_ARCH_X86, UC_MODE_32, code, sizeof(code) - 1);
OK(uc_hook_add(uc, &h, UC_HOOK_INSN, test_x86_hook_cpuid_callback, NULL, 1, 0, UC_X86_INS_CPUID));
OK(uc_emu_start(uc, code_start, code_start + sizeof(code) - 1, 0, 0));
OK(uc_reg_read(uc, UC_X86_REG_EAX, &reg));
TEST_CHECK(reg == 7);
OK(uc_close(uc));
}
TEST_LIST = {
{ "test_x86_in", test_x86_in },
{ "test_x86_out", test_x86_out },
@@ -545,5 +570,6 @@ TEST_LIST = {
{ "test_x86_smc_xor", test_x86_smc_xor},
{ "test_x86_mmio_uc_mem_rw", test_x86_mmio_uc_mem_rw},
{ "test_x86_sysenter", test_x86_sysenter},
{ "test_x86_hook_cpuid", test_x86_hook_cpuid},
{ NULL, NULL }
};