mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2024-12-23 18:05:29 +00:00
123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/* Unicorn Emulator Engine */
|
|
/* By Nguyen Anh Quynh, 2015 */
|
|
|
|
/* Sample code to demonstrate how to emulate Sparc code */
|
|
|
|
// windows specific
|
|
#ifdef _MSC_VER
|
|
#include <io.h>
|
|
#include <windows.h>
|
|
#define PRIx64 "llX"
|
|
#ifdef DYNLOAD
|
|
#include "unicorn_dynload.h"
|
|
#else // DYNLOAD
|
|
#include <unicorn/unicorn.h>
|
|
#ifdef _WIN64
|
|
#pragma comment(lib, "unicorn_staload64.lib")
|
|
#else // _WIN64
|
|
#pragma comment(lib, "unicorn_staload.lib")
|
|
#endif // _WIN64
|
|
#endif // DYNLOAD
|
|
|
|
// posix specific
|
|
#else // _MSC_VER
|
|
#include <unistd.h>
|
|
#include <inttypes.h>
|
|
#include <unicorn/unicorn.h>
|
|
#endif // _MSC_VER
|
|
|
|
|
|
// code to be emulated
|
|
#define SPARC_CODE "\x86\x00\x40\x02" // add %g1, %g2, %g3;
|
|
//#define SPARC_CODE "\xbb\x70\x00\x00" // illegal code
|
|
|
|
// memory address where emulation starts
|
|
#define ADDRESS 0x10000
|
|
|
|
static void hook_block(uc_engine *uc, uint64_t address, uint32_t size, void *user_data)
|
|
{
|
|
printf(">>> Tracing basic block at 0x%"PRIx64 ", block size = 0x%x\n", address, size);
|
|
}
|
|
|
|
static void hook_code(uc_engine *uc, uint64_t address, uint32_t size, void *user_data)
|
|
{
|
|
printf(">>> Tracing instruction at 0x%"PRIx64 ", instruction size = 0x%x\n", address, size);
|
|
}
|
|
|
|
static void test_sparc(void)
|
|
{
|
|
uc_engine *uc;
|
|
uc_err err;
|
|
uc_hook trace1, trace2;
|
|
|
|
int g1 = 0x1230; // G1 register
|
|
int g2 = 0x6789; // G2 register
|
|
int g3 = 0x5555; // G3 register
|
|
|
|
printf("Emulate SPARC code\n");
|
|
|
|
// Initialize emulator in Sparc mode
|
|
err = uc_open(UC_ARCH_SPARC, UC_MODE_SPARC32, &uc);
|
|
if (err) {
|
|
printf("Failed on uc_open() with error returned: %u (%s)\n",
|
|
err, uc_strerror(err));
|
|
return;
|
|
}
|
|
|
|
// map 2MB memory for this emulation
|
|
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
|
|
|
|
// write machine code to be emulated to memory
|
|
uc_mem_write(uc, ADDRESS, SPARC_CODE, sizeof(SPARC_CODE) - 1);
|
|
|
|
// initialize machine registers
|
|
uc_reg_write(uc, UC_SPARC_REG_G1, &g1);
|
|
uc_reg_write(uc, UC_SPARC_REG_G2, &g2);
|
|
uc_reg_write(uc, UC_SPARC_REG_G3, &g3);
|
|
|
|
// tracing all basic blocks with customized callback
|
|
uc_hook_add(uc, &trace1, UC_HOOK_BLOCK, hook_block, NULL, (uint64_t)1, (uint64_t)0);
|
|
|
|
// tracing all instructions with customized callback
|
|
uc_hook_add(uc, &trace2, UC_HOOK_CODE, hook_code, NULL, (uint64_t)1, (uint64_t)0);
|
|
|
|
// emulate machine code in infinite time (last param = 0), or when
|
|
// finishing all the code.
|
|
err = uc_emu_start(uc, ADDRESS, ADDRESS + sizeof(SPARC_CODE) - 1, 0, 0);
|
|
if (err) {
|
|
printf("Failed on uc_emu_start() with error returned: %u (%s)\n",
|
|
err, uc_strerror(err));
|
|
}
|
|
|
|
// now print out some registers
|
|
printf(">>> Emulation done. Below is the CPU context\n");
|
|
|
|
uc_reg_read(uc, UC_SPARC_REG_G3, &g3);
|
|
printf(">>> G3 = 0x%x\n", g3);
|
|
|
|
uc_close(uc);
|
|
}
|
|
|
|
int main(int argc, char **argv, char **envp)
|
|
{
|
|
// dynamically load shared library
|
|
#ifdef DYNLOAD
|
|
if (!uc_dyn_load(NULL, 0)) {
|
|
printf("Error dynamically loading shared library.\n");
|
|
printf("Please check that unicorn.dll/unicorn.so is available as well as\n");
|
|
printf("any other dependent dll/so files.\n");
|
|
printf("The easiest way is to place them in the same directory as this app.\n");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
test_sparc();
|
|
|
|
// dynamically free shared library
|
|
#ifdef DYNLOAD
|
|
uc_dyn_free();
|
|
#endif
|
|
|
|
return 0;
|
|
}
|