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Author SHA1 Message Date
Daniel Jasper 90d990e034 Revert "[libFuzzer] refactoring to speed things up, NFC" 
This reverts commit r283946.

This breaks when build with GCC:
lib/Fuzzer/FuzzerTracePC.cpp:169:6: error: always_inline function might not be inlinable [-Werror=attributes]
lib/Fuzzer/FuzzerTracePC.cpp:169:6: error: inlining failed in call to always_inline 'void fuzzer::TracePC::HandleCmp(void*, T, T) [with T = long unsigned int]': target specific option mismatch
lib/Fuzzer/FuzzerTracePC.cpp:198:65: error: called from here

llvm-svn: 283979
 2016-10-12 07:26:46 +00:00
Kostya Serebryany a09d11e108 [libFuzzer] refactoring to speed things up, NFC 
llvm-svn: 283946
 2016-10-11 21:27:37 +00:00
Kostya Serebryany d19919a80e [libFuzzer] implement value profile for switch, increase the size of the PCs array, make sure we don't overflow it 
llvm-svn: 283841
 2016-10-11 01:14:41 +00:00
Kostya Serebryany 3e0e901a18 [libFuzzer] add switch tests 
llvm-svn: 283840
 2016-10-11 01:13:32 +00:00
Kostya Serebryany 7abb95d3b3 [libFuzzer] make a test less flaky 
llvm-svn: 283686
 2016-10-09 03:45:38 +00:00
Kostya Serebryany c5325ed29d [libFuzzer] when shrinking the corpus, delete evicted files previously created by the current process 
llvm-svn: 283682
 2016-10-08 23:24:45 +00:00
Kostya Serebryany 9adc7c8b4a [libFuzzer] control the reload interval by a flag, make it 10 seconds by default 
llvm-svn: 283676
 2016-10-08 22:12:14 +00:00
Kostya Serebryany cd04ec25dd [libFuzzer] fix use-after-free in libFuzzer found by ... fuzzing. 
llvm-svn: 283675
 2016-10-08 21:57:48 +00:00
Kostya Serebryany 936b1e774f [libFuzzer] be more careful with memory usage, print peak rss in status lines 
llvm-svn: 283418
 2016-10-06 05:14:00 +00:00
Kostya Serebryany 3b564e9765 [libFuzzer] when re-running for lsan, don't look at the coverage 
llvm-svn: 283411
 2016-10-05 23:31:01 +00:00
Kostya Serebryany 1c73f1bf27 [libFuzzer] refactoring to make -shrink=1 work for value profile, added a test. 
llvm-svn: 283409
 2016-10-05 22:56:21 +00:00
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