diff options
Diffstat (limited to 'executor/executor_darwin.h')
| -rw-r--r-- | executor/executor_darwin.h | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/executor/executor_darwin.h b/executor/executor_darwin.h index d6efe0063..d7c6c4574 100644 --- a/executor/executor_darwin.h +++ b/executor/executor_darwin.h @@ -68,10 +68,14 @@ static void cover_open(cover_t* cov, bool extra) // and we don't care about the counters/nedges modes in XNU. if (ksancov_mode_trace(cov->fd, max_entries)) fail("ioctl init trace write failed"); +} +static void cover_mmap(cover_t* cov) +{ + if (cov->data != NULL) + fail("cover_mmap invoked on an already mmapped cover_t object"); uintptr_t mmap_ptr = 0; - size_t mmap_alloc_size = 0; - if (ksancov_map(cov->fd, &mmap_ptr, &mmap_alloc_size)) + if (ksancov_map(cov->fd, &mmap_ptr, &cov->mmap_alloc_size)) fail("cover mmap failed"); // Sanity check to make sure our assumptions in the max_entries calculation @@ -80,7 +84,7 @@ static void cover_open(cover_t* cov, bool extra) fail("mmap allocation size larger than anticipated"); cov->data = (char*)mmap_ptr; - cov->data_end = cov->data + mmap_alloc_size; + cov->data_end = cov->data + cov->mmap_alloc_size; } static void cover_protect(cover_t* cov) @@ -121,11 +125,3 @@ static bool use_cover_edges(uint64 pc) { return true; } - -static void cover_reserve_fd(cover_t* cov) -{ - int fd = open("/dev/null", O_RDONLY); - if (fd < 0) - fail("failed to open /dev/null"); - dup2(fd, cov->fd); -} |