89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/*
|
|
Created for Unicorn Engine by Eric Poole <eric.poole@aptiv.com>, 2022
|
|
Copyright 2022 Aptiv
|
|
*/
|
|
|
|
/* Sample code to demonstrate how to emulate TriCore code */
|
|
|
|
#include <unicorn/unicorn.h>
|
|
#include <string.h>
|
|
|
|
// code to be emulated
|
|
#define CODE "\x82\x11\xbb\x00\x00\x08" // mov d1, #0x1; mov.u d0, #0x8000
|
|
|
|
// 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_tricore(void)
|
|
{
|
|
uc_engine *uc;
|
|
uc_err err;
|
|
uc_hook trace1, trace2;
|
|
|
|
uint32_t d0 = 0x0; // d0 register
|
|
uint32_t d1 = 0x0; // d1 register
|
|
|
|
printf("Emulate TriCore code\n");
|
|
|
|
// Initialize emulator in TriCore mode
|
|
err = uc_open(UC_ARCH_TRICORE, UC_MODE_LITTLE_ENDIAN, &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, CODE, sizeof(CODE) - 1);
|
|
|
|
// tracing all basic blocks with customized callback
|
|
uc_hook_add(uc, &trace1, UC_HOOK_BLOCK, hook_block, NULL, 1, 0);
|
|
|
|
// tracing one instruction at ADDRESS with customized callback
|
|
uc_hook_add(uc, &trace2, UC_HOOK_CODE, hook_code, NULL, ADDRESS,
|
|
ADDRESS + sizeof(CODE) - 1);
|
|
|
|
// emulate machine code in infinite time (last param = 0), or when
|
|
// finishing all the code.
|
|
err = uc_emu_start(uc, ADDRESS, ADDRESS + sizeof(CODE) - 1, 0, 0);
|
|
if (err) {
|
|
printf("Failed on uc_emu_start() with error returned: %u\n", err);
|
|
}
|
|
|
|
// now print out some registers
|
|
printf(">>> Emulation done. Below is the CPU context\n");
|
|
|
|
uc_reg_read(uc, UC_TRICORE_REG_D0, &d0);
|
|
printf(">>> d0 = 0x%x\n", d0);
|
|
|
|
uc_reg_read(uc, UC_TRICORE_REG_D1, &d1);
|
|
printf(">>> d1 = 0x%x\n", d1);
|
|
|
|
uc_close(uc);
|
|
}
|
|
|
|
int main(int argc, char **argv, char **envp)
|
|
{
|
|
test_tricore();
|
|
|
|
return 0;
|
|
}
|