Commit Graph

414 Commits

Author SHA1 Message Date
Kostya Serebryany 379359c53a [libFuzzer] add ShrinkValueProfileTest, move code around, NFC
llvm-svn: 283286
2016-10-05 01:09:40 +00:00
Kostya Serebryany 2455f0d013 [libFuzzer] clear the corpus elements if they are evicted (i.e. smaller elements with proper coverage are found). Make sure we never try to mutate empty element. Print the corpus size in bytes in the status lines
llvm-svn: 283279
2016-10-05 00:25:17 +00:00
Kostya Serebryany 4820cc988f [libFuzzer] remove dfsan support and some related stale code. This is not being used and as is is pretty weak anyway
llvm-svn: 283187
2016-10-04 06:08:46 +00:00
Kostya Serebryany 5a52a11ce4 [libFuzzer] change the probabilities so that we choose only the inputs that are known to be minimal inputs for at least one coverage feature (works only with -shrink=1 for now)
llvm-svn: 283178
2016-10-04 01:51:44 +00:00
Kostya Serebryany a5f1adab56 [libFuzzer] add fuzzer test for libxml2, finds https://bugzilla.gnome.org/show_bug.cgi?id=751631
llvm-svn: 283024
2016-10-01 07:37:40 +00:00
Kostya Serebryany d1f31d0a49 [libFuzzer] fix a recent bugs (buffer overflow)
llvm-svn: 283021
2016-10-01 07:13:25 +00:00
Kostya Serebryany d216922a80 [libFuzzer] implement the -shrink=1 option that tires to make elements of the corpus smaller, off by default
llvm-svn: 282995
2016-10-01 01:04:29 +00:00
Kostya Serebryany 90f8f36bca [libFuzzer] remove some experimental code
llvm-svn: 282983
2016-09-30 23:29:27 +00:00
Kostya Serebryany 7022b94687 [libFuzzer] fix openssl fuzzer tests when running on a machine w/o openssl installed
llvm-svn: 282972
2016-09-30 22:35:08 +00:00
Kostya Serebryany e7e790bad6 [libFuzzer] remove unused option
llvm-svn: 282971
2016-09-30 22:29:57 +00:00
Kostya Serebryany b7e7a5473d [libFuzzer] move common parts of shell scripts into a separate file
llvm-svn: 282954
2016-09-30 21:12:30 +00:00
Kostya Serebryany cfa31b6307 [libFuzzer] add a fuzzer test that finds CVE-2015-3193
llvm-svn: 282892
2016-09-30 18:16:16 +00:00
Kostya Serebryany cad612a472 [libfuzzer] test for c-ares CVE-2016-5180
llvm-svn: 282839
2016-09-30 05:15:45 +00:00
Kostya Serebryany b3949ef885 [libFuzzer] remove the code for -print_pcs=1 with the old coverage. It still works with the new one (trace-pc-guard)
llvm-svn: 282831
2016-09-30 01:24:57 +00:00
Kostya Serebryany 2c55613a08 [libFuzzer] more the feature set to InputCorpus; on feature update, change the feature counter of the old best input
llvm-svn: 282829
2016-09-30 01:19:56 +00:00
Kostya Serebryany a9b0dd0e51 [sanitizer-coverage/libFuzzer] make the guards for trace-pc 32-bit; create one array of guards per function, instead of one guard per BB. reorganize the code so that trace-pc-guard does not create unneeded globals
llvm-svn: 282735
2016-09-29 17:43:24 +00:00
Kostya Serebryany a9a135b4f5 [libFuzzer] initialize ValueBitMap::NumBits
llvm-svn: 282721
2016-09-29 15:51:28 +00:00
Kostya Serebryany 3ee6c213d6 [libFuzzer] speedup TracePC::FinalizeTrace
llvm-svn: 282562
2016-09-28 01:16:24 +00:00
Kostya Serebryany 7d6935c184 [libFuzzer] run re2 test in 8 threads by default
llvm-svn: 282469
2016-09-27 03:33:57 +00:00
Kostya Serebryany 45c144754b [sanitizer-coverage] fix a bug in trace-gep
llvm-svn: 282467
2016-09-27 01:55:08 +00:00
Kostya Serebryany 53543af036 [libFuzzer] add a test based on openssl-1.0.1f (finds heartbleed)
llvm-svn: 282460
2016-09-27 00:27:40 +00:00
Kostya Serebryany 5ff481fd9e [libFuzzer] add -exit_on_src_pos to test libFuzzer itself, add a test script for RE2 that uses this flag
llvm-svn: 282458
2016-09-27 00:10:20 +00:00
Kostya Serebryany 273d767215 [libFuzzer] add a standalone build script
llvm-svn: 282321
2016-09-24 04:00:00 +00:00
Kostya Serebryany 0800b81a21 [libFuzzer] simplify HandleTrace again, start re-running interesting units and collecting their features.
llvm-svn: 282316
2016-09-23 23:51:58 +00:00
Kostya Serebryany 2d1d944f7e [libFuzzer] first steps in adding a proper automated test suite based on real-life code: add a script to build RE2 at a revision that has known bugs
llvm-svn: 282292
2016-09-23 20:43:22 +00:00
Kostya Serebryany 0d26de3922 [libFuzzer] reset Counters (trace-pc-guard) before every run
llvm-svn: 282284
2016-09-23 20:04:13 +00:00
Kostya Serebryany ce1cab169f [libFuzzer] be more precise about what we reset in TracePC
llvm-svn: 282225
2016-09-23 02:18:59 +00:00
Kostya Serebryany 16a145fd0f [libFuzzer] fix merging with trace-pc-guard
llvm-svn: 282224
2016-09-23 01:58:51 +00:00
Kostya Serebryany 87a598e19f [libFuzzer] simplify the TracePC logic
llvm-svn: 282222
2016-09-23 01:20:07 +00:00
Kostya Serebryany ab73c6924f [libFuzzer] move value profiling logic into TracePC
llvm-svn: 282219
2016-09-23 00:46:18 +00:00
Kostya Serebryany d28099de5d [libFuzzer] change ValueBitMap to remember the number of bits in it
llvm-svn: 282216
2016-09-23 00:22:46 +00:00
Kostya Serebryany be0ed59cdc [libFuzzer] simplify the crash minimizer; split MaxLen into two: MaxInputLen and MaxMutationLen, allow MaxMutationLen to be less than MaxInputLen
llvm-svn: 282211
2016-09-22 23:16:36 +00:00
Kostya Serebryany 624f59f4d8 [libFuzzer] add 'features' to the corpus elements, allow mutations with Size > MaxSize, fix sha1 in corpus stats; various refactorings
llvm-svn: 282129
2016-09-22 01:34:58 +00:00
Kostya Serebryany c9e3de35ed [libFuzzer] one more test
llvm-svn: 282127
2016-09-22 00:57:29 +00:00
Kostya Serebryany 29bb664075 [libFuzzer] add stats to the corpus; more refactoring
llvm-svn: 282121
2016-09-21 22:42:17 +00:00
Kostya Serebryany 20801e1b8a [libFuzzer] more refactoring; don't compute sha1sum every time we mutate a unit from the corpus, use the stored one.
llvm-svn: 282115
2016-09-21 21:41:48 +00:00
Kostya Serebryany 8658618ea0 [libFuzzer] more refactoring
llvm-svn: 282113
2016-09-21 21:17:23 +00:00
Kostya Serebryany 225d8e45d4 [libFuzzer] fix libc++ build
llvm-svn: 282050
2016-09-21 03:50:37 +00:00
Kostya Serebryany 556894fb10 [libFuzzer] more refactoring; NFC
llvm-svn: 282047
2016-09-21 02:05:39 +00:00
Kostya Serebryany 6f5a804cdb [libFuzzer] refactoring: split the large header into many; NFC
llvm-svn: 282044
2016-09-21 01:50:50 +00:00
Kostya Serebryany 09aa01a6f8 [libFuzzer] refactoring: move the Corpus into a separate class; delete two unused experimental features
llvm-svn: 282042
2016-09-21 01:04:43 +00:00
Kostya Serebryany 3750c04f7e [libFuzzer] use sleep() instead of std::this_thread::sleep_for to avoid coverage from instrumented libc++
llvm-svn: 281933
2016-09-19 20:32:34 +00:00
Kostya Serebryany b706b481ba [libFuzzer] add -print_coverage=1 flag to print coverage directly from libFuzzer
llvm-svn: 281866
2016-09-18 21:47:08 +00:00
Kostya Serebryany 8e781a888a [libFuzzer] use 'if guard' instead of 'if guard >= 0' with trace-pc; change the guard type to intptr_t; use separate array for 8-bit counters
llvm-svn: 281845
2016-09-18 04:52:23 +00:00
Kostya Serebryany bc3789a919 [libFuzzer] properly reset the guards when reseting the coverage. Also try to fix check-fuzzer on the bot
llvm-svn: 281814
2016-09-17 06:01:55 +00:00
Kostya Serebryany 3e36ec1d18 [libFuzzer] change trace-pc to use 8-byte guards
llvm-svn: 281810
2016-09-17 05:04:47 +00:00
Kostya Serebryany 0984517021 [libFuzzer] make caller-callee feedback work with trace-pc-guard
llvm-svn: 281667
2016-09-15 22:16:15 +00:00
Kostya Serebryany 21c3573733 [libFuzzer] fix the build for AFLDriverTest
llvm-svn: 281633
2016-09-15 18:10:38 +00:00
Kostya Serebryany 09e416615e [libFuzzer] disable test that requires debug info -- it fails on the bot
llvm-svn: 281584
2016-09-15 05:46:58 +00:00
Kostya Serebryany 0b47fbcb30 [libFuzzer] move the AFL driver build rule test into the uninstrumented dir
llvm-svn: 281583
2016-09-15 05:17:39 +00:00