ExternalVendorCode/AFLplusplus
1
0
Fork 0
mirror of https://github.com/AFLplusplus/AFLplusplus.git synced 2025-06-15 19:38:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

configurable testcache with malloc (#581)

Browse Source 
* 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
Download Patch File Download Diff File Expand all files Collapse all files

29
src/afl-fuzz.c
View File

@ -196,11 +196,13 @@ static void usage(u8 *argv0, int more_help) {
"AFL_SKIP_BIN_CHECK: skip the check, if the target is an executable\n"
"AFL_SKIP_CPUFREQ: do not warn about variable cpu clocking\n"
"AFL_SKIP_CRASHES: during initial dry run do not terminate for crashing inputs\n"
"AFL_STATSD: enables StatsD metrics collection"
"AFL_STATSD_HOST: change default statsd host (default 127.0.0.1)"
"AFL_STATSD_PORT: change default statsd port (default: 8125)"
"AFL_STATSD_TAGS_FLAVOR: change default statsd tags format (default will disable tags)."
" Supported formats are: 'dogstatsd', 'librato', 'signalfx' and 'influxdb'"
"AFL_STATSD: enables StatsD metrics collection\n"
"AFL_STATSD_HOST: change default statsd host (default 127.0.0.1)\n"
"AFL_STATSD_PORT: change default statsd port (default: 8125)\n"
"AFL_STATSD_TAGS_FLAVOR: set statsd tags format (default: disable tags)\n"
" Supported formats are: 'dogstatsd', 'librato', 'signalfx'\n"
" and 'influxdb'\n"
"AFL_TESTCACHE_SIZE: use a cache for testcases, improves performance (in MB)\n"
"AFL_TMPDIR: directory to use for input file generation (ramdisk recommended)\n"
//"AFL_PERSISTENT: not supported anymore -> no effect, just a warning\n"
//"AFL_DEFER_FORKSRV: not supported anymore -> no effect, just a warning\n"
@ -885,7 +887,7 @@ int main(int argc, char **argv_orig, char **envp) {
auto_sync = 1;
afl->sync_id = ck_strdup("default");
afl->is_secondary_node = 1;
OKF("no -M/-S set, autoconfiguring for \"-S %s\"", afl->sync_id);
OKF("No -M/-S set, autoconfiguring for \"-S %s\"", afl->sync_id);
}
@ -1006,6 +1008,21 @@ int main(int argc, char **argv_orig, char **envp) {
}
if (afl->afl_env.afl_testcache_size) {
afl->q_testcase_max_cache_size =
(u64)atoi(afl->afl_env.afl_testcache_size) * 1024000;
OKF("Enabled testcache with %llu MB",
afl->q_testcase_max_cache_size / 1024000);
} else {
ACTF(
"No testcache was configured. it is recommended to use a testcache, it "
"improves performance: set AFL_TESTCACHE_SIZE=(value in MB)");
}
if (afl->afl_env.afl_forksrv_init_tmout) {
afl->fsrv.init_tmout = atoi(afl->afl_env.afl_forksrv_init_tmout);