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This commit is contained in:
vanhauser-thc
2022-03-04 09:41:21 +01:00
parent 09123d8617
commit 2eeba2dbf0
5 changed files with 19 additions and 12 deletions
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7
nyx_mode/custom_harness/example.c
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@ -7,7 +7,7 @@
#define TRACE_BUFFER_SIZE (64)
#define PAGE_SIZE 0x1000
#define MMAP_SIZE(x) ((x & ~(PAGE_SIZE-1)) + PAGE_SIZE)
#define MMAP_SIZE(x) ((x & ~(PAGE_SIZE - 1)) + PAGE_SIZE)
int main(int argc, char **argv) {
@ -30,8 +30,9 @@ int main(int argc, char **argv) {
/* this is our "bitmap" that is later shared with the fuzzer (you can also
* pass the pointer of the bitmap used by compile-time instrumentations in
* your target) */
uint8_t *trace_buffer = mmap(NULL, MMAP_SIZE(TRACE_BUFFER_SIZE), PROT_READ |
PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
uint8_t *trace_buffer =
mmap(NULL, MMAP_SIZE(TRACE_BUFFER_SIZE), PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS, -1, 0);
memset(trace_buffer, 0,
TRACE_BUFFER_SIZE); // makes sure that the bitmap buffer is already
// mapped into the guest's memory (alternatively