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A stronger test and handle addr_end = 0

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lazymio
2021-10-31 21:01:55 +01:00
parent 4bcf1c4a7c
commit 84abf1d3a4
4 changed files with 27 additions and 11 deletions
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6
tests/unit/test_x86.c
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@@ -633,7 +633,7 @@ static void test_x86_hook_cpuid()
static void test_x86_clear_tb_cache()
{
uc_engine *uc;
char code[] = "\x83\xc1\x01\x4a"; // INC ecx; DEC edx;
char code[] = "\x83\xc1\x01\x4a"; // ADD ecx, 1; DEC edx;
int r_ecx = 0x1234;
int r_edx = 0x7890;
uint64_t code_start = 0x1240; // Choose this address by design
@@ -645,6 +645,10 @@ static void test_x86_clear_tb_cache()
OK(uc_reg_write(uc, UC_X86_REG_ECX, &r_ecx));
OK(uc_reg_write(uc, UC_X86_REG_EDX, &r_edx));
// This emulation should take no effect at all.
OK(uc_emu_start(uc, code_start, code_start, 0, 0));
// Emulate ADD ecx, 1.
OK(uc_emu_start(uc, code_start, code_start + 3, 0, 0));
// If tb cache is not cleared, edx would be still 0x7890