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Support nested uc_emu_start calls

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This commit is contained in:
lazymio
2021-11-16 21:07:03 +01:00
parent 43c643d4af
commit 247ffbe0e8
5 changed files with 54 additions and 2 deletions
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34
tests/unit/test_x86.c
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@ -813,6 +813,39 @@ static void test_x86_cmpxchg()
OK(uc_close(uc));
}
static void test_x86_nested_emu_start_cb(uc_engine *uc, uint64_t addr,
size_t size, void *data)
{
OK(uc_emu_start(uc, code_start + 1, code_start + 2, 0, 0));
}
static void test_x86_nested_emu_start()
{
uc_engine *uc;
char code[] = "\x41\x4a"; // INC ecx; DEC edx;
int r_ecx = 0x1234;
int r_edx = 0x7890;
uc_hook h;
uc_common_setup(&uc, UC_ARCH_X86, UC_MODE_32, code, sizeof(code) - 1);
OK(uc_reg_write(uc, UC_X86_REG_ECX, &r_ecx));
OK(uc_reg_write(uc, UC_X86_REG_EDX, &r_edx));
// Emulate DEC in the nested hook.
OK(uc_hook_add(uc, &h, UC_HOOK_CODE, test_x86_nested_emu_start_cb, NULL,
code_start, code_start));
// Emulate INC
OK(uc_emu_start(uc, code_start, code_start + 1, 0, 0));
OK(uc_reg_read(uc, UC_X86_REG_ECX, &r_ecx));
OK(uc_reg_read(uc, UC_X86_REG_EDX, &r_edx));
TEST_CHECK(r_ecx == 0x1235);
TEST_CHECK(r_edx == 0x788f);
OK(uc_close(uc));
}
TEST_LIST = {{"test_x86_in", test_x86_in},
{"test_x86_out", test_x86_out},
{"test_x86_mem_hook_all", test_x86_mem_hook_all},
@ -838,4 +871,5 @@ TEST_LIST = {{"test_x86_in", test_x86_in},
{"test_x86_clear_empty_tb", test_x86_clear_empty_tb},
{"test_x86_hook_tcg_op", test_x86_hook_tcg_op},
{"test_x86_cmpxchg", test_x86_cmpxchg},
{"test_x86_nested_emu_start", test_x86_nested_emu_start},
{NULL, NULL}};