85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
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Created for Unicorn Engine by Eric Poole <eric.poole@aptiv.com>, 2022
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Copyright 2022 Aptiv
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*/
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/* Sample code to demonstrate how to emulate TriCore code */
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#include <unicorn/unicorn.h>
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#include <string.h>
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// code to be emulated
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#define CODE "\x82\x11\xbb\x00\x00\x08" // mov d0, #0x1; mov.u d0, #0x8000
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// memory address where emulation starts
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#define ADDRESS 0x10000
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static void hook_block(uc_engine *uc, uint64_t address, uint32_t size,
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void *user_data)
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{
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printf(">>> Tracing basic block at 0x%" PRIx64 ", block size = 0x%x\n",
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address, size);
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}
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static void hook_code(uc_engine *uc, uint64_t address, uint32_t size,
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void *user_data)
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{
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printf(">>> Tracing instruction at 0x%" PRIx64
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", instruction size = 0x%x\n",
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address, size);
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}
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static void test_tricore(void)
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{
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uc_engine *uc;
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uc_err err;
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uc_hook trace1, trace2;
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uint32_t d0 = 0x0; // d0 register
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printf("Emulate TriCore code\n");
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// Initialize emulator in TriCore mode
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err = uc_open(UC_ARCH_TRICORE, UC_MODE_LITTLE_ENDIAN, &uc);
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if (err) {
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printf("Failed on uc_open() with error returned: %u (%s)\n", err,
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uc_strerror(err));
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return;
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}
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// map 2MB memory for this emulation
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uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
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// write machine code to be emulated to memory
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uc_mem_write(uc, ADDRESS, CODE, sizeof(CODE) - 1);
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// tracing all basic blocks with customized callback
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uc_hook_add(uc, &trace1, UC_HOOK_BLOCK, hook_block, NULL, 1, 0);
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// tracing one instruction at ADDRESS with customized callback
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uc_hook_add(uc, &trace2, UC_HOOK_CODE, hook_code, NULL, ADDRESS,
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ADDRESS + sizeof(CODE) - 1);
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// emulate machine code in infinite time (last param = 0), or when
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// finishing all the code.
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err = uc_emu_start(uc, ADDRESS, ADDRESS + sizeof(CODE) - 1, 0, 0);
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if (err) {
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printf("Failed on uc_emu_start() with error returned: %u\n", err);
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}
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// now print out some registers
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printf(">>> Emulation done. Below is the CPU context\n");
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uc_reg_read(uc, UC_TRICORE_REG_D0, &d0);
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printf(">>> d0 = 0x%x\n", d0);
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uc_close(uc);
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}
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int main(int argc, char **argv, char **envp)
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{
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test_tricore();
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return 0;
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}
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