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configurable testcache with malloc (#581)

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* cache item number to cache memory size

* reload testcase if trimming changed the size

* fix splicing selection

* slim splicing

* import sync fix

* write testcache stats to fuzzer_stats

* fix new seed selection algo

* malloc+read instead of mmap

* fix

* testcache is configurable now and no reference counts

* fixes compilation, test script

* fixes

* switch TEST_CC to afl-cc in makefile

* code format

* fix

* fix crash

* fix crash

* fix env help output

* remove unnecessary pointer resets

* fix endless loop bug

* actually use the cache if set

* one more fix

* increase default cache entries, add default cache size value to config.h

Co-authored-by: hexcoder- <heiko@hexco.de>
This commit is contained in:
van Hauser
2020-10-14 15:30:30 +02:00
committed by GitHub
parent c20ba2c2c5
commit 56ac3fcdc5
13 changed files with 276 additions and 163 deletions
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6
src/afl-fuzz-run.c
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@ -692,6 +692,8 @@ void sync_fuzzers(afl_state_t *afl) {
u8 trim_case(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) {
u32 orig_len = q->len;
/* Custom mutator trimmer */
if (afl->custom_mutators_count) {
@ -709,6 +711,8 @@ u8 trim_case(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) {
});
if (orig_len != q->len) { queue_testcase_retake(afl, q, orig_len); }
if (custom_trimmed) return trimmed_case;
}
@ -842,6 +846,8 @@ u8 trim_case(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) {
close(fd);
if (orig_len != q->len) queue_testcase_retake(afl, q, orig_len);
memcpy(afl->fsrv.trace_bits, afl->clean_trace, afl->fsrv.map_size);
update_bitmap_score(afl, q);