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/*
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;
}
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