Added (failing?) test for reg save/restore
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@ -729,6 +729,68 @@ static void test_x86_16(void **state)
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/******************************************************************************/
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static void test_i386_reg_save(void **state)
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{
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uc_engine *uc;
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static const uint64_t address = 0;
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static const uint8_t code[] = {
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0x40 // inc eax
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};
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int32_t eax = 1;
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// Initialize emulator
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uc_assert_success(uc_open(UC_ARCH_X86, UC_MODE_16, &uc));
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// map 8KB memory for this emulation
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uc_assert_success(uc_mem_map(uc, address, 8 * 1024, UC_PROT_ALL));
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// write machine code to be emulated to memory
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uc_assert_success(uc_mem_write(uc, address, code, sizeof(code)));
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// set eax to 1
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uc_assert_success(uc_reg_write(uc, UC_X86_REG_EAX, &eax));
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// step one instruction
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uc_assert_success(uc_emu_start(uc, address, address+1, 0, 0));
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// save the state
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void *saved_regs = uc_save_regstate(uc, NULL);
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// step one instruction
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uc_assert_success(uc_emu_start(uc, address, address+1, 0, 0));
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// check that eax == 3
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uc_assert_success(uc_reg_read(uc, UC_X86_REG_EAX, &eax));
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assert_int_equal(eax, 3);
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// restore the state
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uc_restore_regstate(uc, saved_regs);
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// check that eax == 2
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uc_assert_success(uc_reg_read(uc, UC_X86_REG_EAX, &eax));
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assert_int_equal(eax, 2);
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// step one instruction
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uc_assert_success(uc_emu_start(uc, address, address+1, 0, 0));
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// check that eax == 3
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uc_assert_success(uc_reg_read(uc, UC_X86_REG_EAX, &eax));
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assert_int_equal(eax, 3);
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// restore the state
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uc_restore_regstate(uc, saved_regs);
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// check that eax == 2
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uc_assert_success(uc_reg_read(uc, UC_X86_REG_EAX, &eax));
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assert_int_equal(eax, 2);
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// clean up;
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free(saved_regs);
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uc_assert_success(uc_close(uc));
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}
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/******************************************************************************/
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int main(void) {
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const struct CMUnitTest tests[] = {
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cmocka_unit_test(test_i386),
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@ -738,6 +800,7 @@ int main(void) {
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cmocka_unit_test(test_i386_invalid_mem_read),
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cmocka_unit_test(test_i386_invalid_mem_write),
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cmocka_unit_test(test_i386_jump_invalid),
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cmocka_unit_test(test_i386_reg_save),
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cmocka_unit_test(test_x86_64),
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cmocka_unit_test(test_x86_64_syscall),
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