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https://github.com/yuzu-emu/unicorn
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Merge branch 'williballenthin-test/issue-351' into farmdve-fix_bugs2
This commit is contained in:
Nguyen Anh Quynh
commit
b85f0c38d1
1 changed files with 154 additions and 0 deletions
154
tests/regress/emu_clear_errors.c
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154
tests/regress/emu_clear_errors.c
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#include <sys/types.h>
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#include <stdint.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <unicorn/unicorn.h>
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static int count = 1;
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bool cb_hookunmapped(uc_engine *uc, uc_mem_type type, uint64_t address, uint32_t size, int64_t value, void *user_data) {
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uint32_t pc = 0;
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uc_reg_read(uc, UC_X86_REG_EIP, &pc);
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fprintf(stderr, "mem unmapped: 0x%x type: %x address: 0x%"PRIx64" length: %x value: 0x%"PRIx64"\n",
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pc, type, address, size, value);
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uc_err err = UC_ERR_OK;
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err = uc_emu_stop(uc);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "stop not ok");
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exit(0);
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}
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return true;
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}
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// move esi, dword ptr [ecx + eax + 0x28]
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// add esi, eax
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// lea eax, dword ptr [ebp - 4]
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// push eax
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// push 0x40
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// push 0x10
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// push esi
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// call some address
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#define CODE "\x8B\x74\x01\x28" \
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"\x0C\xF0" \
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"\x8D\x45\xFC" \
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"\x50" \
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"\x6A\x40" \
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"\x6A\x10" \
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"\x56" \
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"\xFF\x15\x20\x20\x00\x10"
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int main() {
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uc_engine *uc;
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uc_err err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_open\n", count++);
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err = uc_mem_map(uc, 0x1000, 0x1000, UC_PROT_ALL);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_mem_map: code\n", count++);
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uint8_t code[0x1000];
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memset(code, 0x0, sizeof(code));
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memcpy(code, CODE, sizeof(CODE));
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err = uc_mem_write(uc, 0x1000, code, sizeof(code));
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_mem_write: code\n", count++);
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uint32_t eip = 0x1000;
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err = uc_reg_write(uc, UC_X86_REG_EIP, &eip);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_reg_write: eip\n", count++);
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err = uc_mem_map(uc, 0x4000, 0x4000, UC_PROT_ALL);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_mem_map: stack\n", count++);
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uint8_t stack[0x4000];
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memset(stack, 0x0, sizeof(stack));
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err = uc_mem_write(uc, 0x4000, code, sizeof(code));
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_mem_write: stack\n", count++);
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uint32_t esp = 0x6000;
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err = uc_reg_write(uc, UC_X86_REG_ESP, &esp);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_reg_write: esp\n", count++);
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uint32_t ebp = 0x6000;
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err = uc_reg_write(uc, UC_X86_REG_EBP, &ebp);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_reg_write: ebp\n", count++);
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uc_hook h1;
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err = uc_hook_add(uc, &h1, UC_HOOK_MEM_UNMAPPED, cb_hookunmapped, NULL);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_hook_add\n", count++);
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// this should execute only a single instruction at 0x1000, because
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// that instruction accesses invalid memory.
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err = uc_emu_start(uc, 0x1000, 0x100F, 0, 0);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_emu_start\n", count++);
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// yes, not necessary, but to demonstrate the UC API is working as expected
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eip = 0x1004;
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err = uc_reg_write(uc, UC_X86_REG_EIP, &eip);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_reg_write: eip\n", count++);
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// this should execute the remaining instructions up to (but not includign) 0x100F.
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// currently, it returns an error about an unmapped read.
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// seems that this error should have been returned in the previous call
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// to emu_start.
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err = uc_emu_start(uc, 0x1004, 0x100F, 0, 0);
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if (err != UC_ERR_OK) {
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fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
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exit(0);
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}
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fprintf(stderr, "ok %d - uc_emu_start\n", count++);
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fprintf(stderr, "ok %d - Done", count++);
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return 0;
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}
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