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Merge pull request #36 from cseagle/master

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Added basic block hook regression test
This commit is contained in:
Nguyen Anh Quynh 2015-08-25 09:40:11 +08:00
commit c7d08d77b5
2 changed files with 83 additions and 1 deletions
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2
regress/Makefile Normal file → Executable file
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@ -1,7 +1,7 @@
CFLAGS += -I../include
LDFLAGS = -L.. -lunicorn
TESTS = map_crash sigill sigill2
TESTS = map_crash sigill sigill2 block_test
all: $(TESTS)

82
regress/block_test.c Executable file
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@ -0,0 +1,82 @@
#include <sys/types.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <unicorn/unicorn.h>
static count = 1;
// Callback function for tracing code (UC_HOOK_CODE & UC_HOOK_BLOCK)
// @address: address where the code is being executed
// @size: size of machine instruction being executed
// @user_data: user data passed to tracing APIs.
void cb_hookblock(uch handle, uint64_t address, uint32_t size, void *user_data) {
fprintf(stderr, "# >>> Tracing basic block at 0x%llx, block size = 0x%x\n", address, size);
if (address != 0x1000000 && address != 0x1000200) {
fprintf(stderr, "not ok %d - address != 0x1000000 && address != 0x1000200\n", count++);
_exit(1);
}
fprintf(stderr, "ok %d - address (0x%x) is start of basic block\n", count++, address);
if (size != 0x200) {
fprintf(stderr, "not ok %d - basic block size != 0x200\n", count++);
_exit(1);
}
fprintf(stderr, "ok %d - basic block size is correct\n", count++);
}
int main() {
uch u;
fprintf(stderr, "# basic block callback test\n");
fprintf(stderr, "# there are only two basic blocks 0x1000000-0x10001ff and 0x1000200-0x10003ff\n");
uc_err err = uc_open(UC_ARCH_X86, UC_MODE_32, &u);
if (err != UC_ERR_OK) {
fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
exit(0);
}
fprintf(stderr, "ok %d - uc_open\n", count++);
err = uc_mem_map(u, 0x1000000, 4096);
if (err != UC_ERR_OK) {
fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
exit(0);
}
fprintf(stderr, "ok %d - uc_mem_map\n", count++);
uint8_t code[1024];
//build a program that consists of 1019 nops followed by a jump -512
//this program contains exactly 2 basic blocks, a block of 512 nops, followed
//by a loop body containing 507 nops and jump to the top of the loop
//the first basic block begins at address 0x1000000, and the second
//basic block begins at address 0x1000200
memset(code, 0x90, sizeof(code));
memcpy(code + 1024 - 5, "\xe9\x00\xfe\xff\xff", 5);
err = uc_mem_write(u, 0x1000000, code, sizeof(code));
if (err != UC_ERR_OK) {
fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
exit(0);
}
fprintf(stderr, "ok %d - uc_mem_write\n", count++);
uch h1, h2;
err = uc_hook_add(u, &h1, UC_HOOK_BLOCK, cb_hookblock, NULL, (uint64_t)1, (uint64_t)0);
if (err != UC_ERR_OK) {
fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
exit(0);
}
fprintf(stderr, "ok %d - uc_hook_add\n", count++);
err = uc_emu_start(u, 0x1000000, 0x1000000 + sizeof(code), 0, 1030);
if (err != UC_ERR_OK) {
fprintf(stderr, "not ok %d - %s\n", count++, uc_strerror(err));
exit(0);
}
fprintf(stderr, "ok %d - uc_emu_start\n", count++);
fprintf(stderr, "ok %d - Done", count++);
}