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more sync in deterministic mode

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This commit is contained in:
van Hauser
2021-01-14 21:26:46 +01:00
parent c42875ddea
commit 7ba17d182f
2 changed files with 18 additions and 4 deletions
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2
docs/Changelog.md
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@ -17,6 +17,8 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
- afl-fuzz - afl-fuzz
- fix crash for very, very fast targets+systems (thanks to mhlakhani - fix crash for very, very fast targets+systems (thanks to mhlakhani
for reporting) for reporting)
- if determinstic mode is active (-D, or -M without -d) then we sync
after every queue entry as this can take very long time otherwise
- switched to a faster RNG - switched to a faster RNG
- added hghwng's patch for faster trace map analysis - added hghwng's patch for faster trace map analysis
- afl-cc - afl-cc

20
src/afl-fuzz.c
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@ -1781,15 +1781,27 @@ int main(int argc, char **argv_orig, char **envp) {
} while (skipped_fuzz && afl->queue_cur && !afl->stop_soon); } while (skipped_fuzz && afl->queue_cur && !afl->stop_soon);
if (!afl->stop_soon && afl->sync_id) { if (likely(!afl->stop_soon && afl->sync_id)) {
if (unlikely(afl->is_main_node)) { if (likely(afl->skip_deterministic)) {
if (!(sync_interval_cnt++ % (SYNC_INTERVAL / 3))) { sync_fuzzers(afl); } if (unlikely(afl->is_main_node)) {
if (!(sync_interval_cnt++ % (SYNC_INTERVAL / 3))) {
sync_fuzzers(afl);
}
} else {
if (!(sync_interval_cnt++ % SYNC_INTERVAL)) { sync_fuzzers(afl); }
}
} else { } else {
if (!(sync_interval_cnt++ % SYNC_INTERVAL)) { sync_fuzzers(afl); } sync_fuzzers(afl);
} }