unicorn/regress/sigill.c

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#include <unicorn/unicorn.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define UC_BUG_WRITE_SIZE 128
#define UC_BUG_WRITE_ADDR 0x1000 // fix this by change this to 0x2000
int got_sigill = 0;
void _interrupt(struct uc_struct *uc, uint32_t intno, void *user_data) {
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if (intno == 6) {
uc_emu_stop(uc);
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got_sigill = 1;
}
}
int main() {
int size;
uint8_t *buf;
struct uc_struct *uc;
uc_hook_h uh_trap;
uc_err err = uc_open (UC_ARCH_X86, UC_MODE_64, &uc);
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if (err) {
fprintf (stderr, "Cannot initialize unicorn\n");
return 1;
}
size = UC_BUG_WRITE_SIZE;
buf = malloc (size);
if (!buf) {
fprintf (stderr, "Cannot allocate\n");
return 1;
}
memset (buf, 0, size);
if (!uc_mem_map(uc, UC_BUG_WRITE_ADDR, size)) {
uc_mem_write(uc, UC_BUG_WRITE_ADDR,
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(const uint8_t*)"\xff\xff\xff\xff\xff\xff\xff\xff", 8);
}
uc_hook_add(uc, &uh_trap, UC_HOOK_INTR, _interrupt, NULL);
uc_emu_start(uc, UC_BUG_WRITE_ADDR, UC_BUG_WRITE_ADDR+8, 0, 1);
uc_close(uc);
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printf ("Correct: %s\n", got_sigill? "YES": "NO");
return got_sigill? 0: 1;
}