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support post_process's own return buffer

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vanhauser-thc
2022-05-09 13:18:14 +02:00
parent 47dae21f4a
commit 51942b605d
7 changed files with 35 additions and 26 deletions
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26
src/afl-sharedmem.c
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@ -163,34 +163,36 @@ u8 *afl_shm_init(sharedmem_t *shm, size_t map_size,
so we do this worse workaround */
snprintf(shm->g_shm_file_path, L_tmpnam, "/afl_%d_%ld", getpid(), random());
#ifdef SHM_LARGEPAGE_ALLOC_DEFAULT
/* trying to get large memory segment optimised and monitorable separately as such */
#ifdef SHM_LARGEPAGE_ALLOC_DEFAULT
/* trying to get large memory segment optimised and monitorable separately as
* such */
static size_t sizes[4] = {(size_t)-1};
static int psizes = 0;
int i;
static int psizes = 0;
int i;
if (sizes[0] == (size_t)-1) { psizes = getpagesizes(sizes, 4); }
/* very unlikely to fail even if the arch supports only two sizes */
if (likely(psizes > 0)) {
for (i = psizes - 1; shm->g_shm_fd == -1 && i >= 0; --i) {
for (i = psizes - 1; shm->g_shm_fd == -1 && i >= 0; --i) {
if (sizes[i] == 0 || map_size % sizes[i]) { continue; }
if (sizes[i] == 0 || map_size % sizes[i]) { continue; }
shm->g_shm_fd = shm_create_largepage(shm->g_shm_file_path, shmflags, i,
SHM_LARGEPAGE_ALLOC_DEFAULT, DEFAULT_PERMISSION);
shm->g_shm_fd =
shm_create_largepage(shm->g_shm_file_path, shmflags, i,
SHM_LARGEPAGE_ALLOC_DEFAULT, DEFAULT_PERMISSION);
}
}
}
#endif
#endif
/* create the shared memory segment as if it was a file */
if (shm->g_shm_fd == -1) {
shm->g_shm_fd = shm_open(shm->g_shm_file_path, shmflags | O_CREAT,
DEFAULT_PERMISSION);
shm->g_shm_fd =
shm_open(shm->g_shm_file_path, shmflags | O_CREAT, DEFAULT_PERMISSION);
}