mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2024-10-20 23:38:17 +02:00
138 lines
4.1 KiB
C
Executable File
138 lines
4.1 KiB
C
Executable File
#include <unicorn/unicorn.h>
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#include <inttypes.h>
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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/**
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* Assert that err matches expect
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*/
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#define uc_assert_err(expect, err) \
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do { \
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uc_err __err = err; \
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if (__err != expect) { \
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fprintf(stderr, "%s", uc_strerror(__err)); \
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exit(1); \
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} \
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} while (0)
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/**
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* Assert that err is UC_ERR_OK
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*/
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#define uc_assert_success(err) uc_assert_err(UC_ERR_OK, err)
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/**
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* Assert that err is anything but UC_ERR_OK
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*
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* Note: Better to use uc_assert_err(<specific error>, err),
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* as this serves to document which errors a function will return
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* in various scenarios.
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*/
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#define uc_assert_fail(err) \
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do { \
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uc_err __err = err; \
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if (__err == UC_ERR_OK) { \
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fprintf(stderr, "%s", uc_strerror(__err)); \
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exit(1); \
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} \
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} while (0)
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#define OK(x) uc_assert_success(x)
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/******************************************************************************/
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static void test_idt_gdt_i386(/*void **state*/)
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{
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uc_engine *uc;
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uc_err err;
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uint8_t buf[6];
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const uint8_t code[] = "\x0f\x01\x0c\x24\x0f\x01\x44\x24\x06"; // sidt [esp]; sgdt [esp+6]
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const uint64_t address = 0x1000000;
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int r_esp = address + 0x1000 - 0x100; // initial esp
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int idt_base = 0x12345678;
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int idt_limit = 0xabcd;
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int gdt_base = 0x87654321;
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int gdt_limit = 0xdcba;
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// Initialize emulator in X86-32bit mode
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err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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uc_assert_success(err);
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// map 1 page memory for this emulation
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err = uc_mem_map(uc, address, 0x1000, UC_PROT_ALL);
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uc_assert_success(err);
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// write machine code to be emulated to memory
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err = uc_mem_write(uc, address, code, sizeof(code)-1);
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uc_assert_success(err);
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// initialize machine registers
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err = uc_reg_write(uc, UC_X86_REG_ESP, &r_esp);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_IDTR_BASE, &idt_base);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_IDTR_LIMIT, &idt_limit);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_GDTR_BASE, &gdt_base);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_GDTR_LIMIT, &gdt_limit);
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uc_assert_success(err);
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idt_base = 0;
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idt_limit = 0;
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gdt_base = 0;
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gdt_limit = 0;
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// emulate machine code in infinite time
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err = uc_emu_start(uc, address, address+sizeof(code)-1, 0, 0);
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uc_assert_success(err);
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uc_reg_read(uc, UC_X86_REG_IDTR_BASE, &idt_base);
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assert(idt_base == 0x12345678);
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uc_reg_read(uc, UC_X86_REG_IDTR_LIMIT, &idt_limit);
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assert(idt_limit == 0xabcd);
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uc_reg_read(uc, UC_X86_REG_GDTR_BASE, &gdt_base);
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assert(gdt_base == 0x87654321);
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uc_reg_read(uc, UC_X86_REG_GDTR_LIMIT, &gdt_limit);
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assert(gdt_limit == 0xdcba);
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// read from memory
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err = uc_mem_read(uc, r_esp, buf, 6);
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uc_assert_success(err);
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assert(memcmp(buf, "\xcd\xab\x78\x56\x34\x12", 6) == 0);
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// read from memory
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err = uc_mem_read(uc, r_esp + 6, buf, 6);
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uc_assert_success(err);
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assert(memcmp(buf, "\xba\xdc\x21\x43\x65\x87", 6) == 0);
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uc_close(uc);
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}
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/******************************************************************************/
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int main(void) {
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/*
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const struct CMUnitTest tests[] = {
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cmocka_unit_test(test_idt_gdt_i386)
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};
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return cmocka_run_group_tests(tests, NULL, NULL);
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*/
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test_idt_gdt_i386();
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fprintf(stderr, "success\n");
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return 0;
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}
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