Commit Graph

251 Commits

Author SHA1 Message Date
Kostya Serebryany
6e5d1a22c3 [libFuzzer] enable detect_leaks=1, add proper docs
llvm-svn: 268088
2016-04-29 18:49:55 +00:00
Kostya Serebryany
e19ab0886a [libFuzzer] disable leak detection if we have tried it for 1000 times w/o finding a leak [part 2]
llvm-svn: 267771
2016-04-27 19:52:56 +00:00
Kostya Serebryany
51ec9a55f7 [libFuzzer] disable leak detection if we have tried it for 1000 times w/o finding a leak
llvm-svn: 267770
2016-04-27 19:52:34 +00:00
Kostya Serebryany
1b0fefb3d9 [libFuzzer] remove dead code
llvm-svn: 267455
2016-04-25 19:41:45 +00:00
Kostya Serebryany
13bad441e8 [libFuzzer] added -detect_leaks flag (0 by default for now). When enabled, it will help finding leaks while fuzzing
llvm-svn: 266838
2016-04-20 00:24:21 +00:00
Kostya Serebryany
f09765cd99 [libFuzzer] try to print correct time in seconds when reporting a timeout. Don't report timeouts while still loading the corpus.
llvm-svn: 266693
2016-04-18 22:50:39 +00:00
Kostya Serebryany
3cb8d702c9 [libFuzzer] warn if the corpus is empty
llvm-svn: 266670
2016-04-18 21:14:11 +00:00
Mehdi Amini
9ff867f98c [NFC] Header cleanup
Removed some unused headers, replaced some headers with forward class declarations.

Found using simple scripts like this one:
clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap'

Patch by Eugene Kosov <claprix@yandex.ru>

Differential Revision: http://reviews.llvm.org/D19219

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 266595
2016-04-18 09:17:29 +00:00
Kostya Serebryany
c84bd01bcd [libFuzzer] add a better warning for command line flags with -- (two dashes)
llvm-svn: 266480
2016-04-15 21:56:29 +00:00
Hans Wennborg
338186f6bb Remove redundant .c_str(), as suggested by PR25633
llvm-svn: 265988
2016-04-11 20:35:17 +00:00
Mike Aizatsky
3b54b31344 [libfuzzer] defensive assert
llvm-svn: 265866
2016-04-08 23:32:24 +00:00
Mike Aizatsky
347b1d5964 [libfuzzer] adding license headers to cpp files
Differential Revision: http://reviews.llvm.org/D18705

llvm-svn: 265174
2016-04-01 18:38:58 +00:00
Kostya Serebryany
c35be8422b [libFuzzer] more docs
llvm-svn: 264803
2016-03-29 23:07:36 +00:00
Kostya Serebryany
cd9a640c0e [libFuzzer] use fflush after every Printf
llvm-svn: 264459
2016-03-25 20:31:26 +00:00
Kostya Serebryany
6ff8ede73a [libFuzzer] handle SIGTERM
llvm-svn: 264338
2016-03-24 21:03:58 +00:00
Kostya Serebryany
0cd69a5030 [libFuzzer] don't report memory leaks if we are dying due to a timeout (just use _Exit instead of exit in the timeout callback)
llvm-svn: 264237
2016-03-24 01:32:08 +00:00
Kostya Serebryany
da046b76fb [libFuzzer] use fdopen+vfprintf instead of fsnprintf+write
llvm-svn: 264230
2016-03-24 00:57:32 +00:00
Kostya Serebryany
01af064f8d [libFuzzer] add a flag close_fd_mask so that we can silence spammy targets by closing stderr/stdout
llvm-svn: 263831
2016-03-18 20:58:29 +00:00
Benjamin Kramer
fe1074fc43 [Fuzzer] Guard no_sanitize_memory attributes behind __has_feature.
Otherwise GCC fails to build it because it doesn't know the attribute.

llvm-svn: 263787
2016-03-18 14:19:19 +00:00
Kostya Serebryany
59ba2beb86 [libFuzzer] read corpus dirs recursively
llvm-svn: 263773
2016-03-18 01:36:00 +00:00
Kostya Serebryany
c99e69af78 [libFuzzer] improve -merge functionality
llvm-svn: 263769
2016-03-18 00:23:29 +00:00
Kostya Serebryany
e634bbeadd [libFuzzer] deprecate several flags
llvm-svn: 263739
2016-03-17 19:59:39 +00:00
Kostya Serebryany
d8cee1fdf1 [libFuzzer] add __attribute__((no_sanitize_memory)) to two functions that may be called from signal handler(s) or from msan. This will hopefully avoid msan false reports which I can't reproduce
llvm-svn: 263737
2016-03-17 19:42:35 +00:00
Mike Aizatsky
34cbd6a60e [libfuzzer] speeding up corpus load
llvm-svn: 263591
2016-03-15 21:47:21 +00:00
Kostya Serebryany
b66ed58c06 [libFuzzer] use max_len exactly equal to the max size of input. Fix 32-bit build
llvm-svn: 263518
2016-03-15 01:28:00 +00:00
Kostya Serebryany
5b93d4b15a [libFuzzer] try to use max_len based on the items of the corpus instead of blindly defaulting to 64 bytes.
llvm-svn: 263323
2016-03-12 01:57:04 +00:00
Mike Aizatsky
a4ce43c759 [libfuzzer] adding std:string to allowed adaptable argument.
llvm-svn: 262757
2016-03-04 23:18:01 +00:00
Kostya Serebryany
c6f46ed530 [libFuzzer] log less when re-loading files; fix a silly bug: when running single files actually run all of them, not just the first one
llvm-svn: 262754
2016-03-04 22:35:40 +00:00
Mike Aizatsky
f9401b724f [libfuzzer] arbitrary function adapter.
The adapter automates converting sequence of bytes into arbitrary
arguments.

Differential Revision: http://reviews.llvm.org/D17829

llvm-svn: 262673
2016-03-03 23:45:29 +00:00
Kostya Serebryany
fc674d4015 [libFuzzer] when interrupted, call _Exit() instead of exit()
llvm-svn: 262667
2016-03-03 22:36:37 +00:00
Kostya Serebryany
7dc222ec7a [libFuzzer] add -Werror for libFuzzer build rule
llvm-svn: 262517
2016-03-02 21:08:16 +00:00
Dmitry Vyukov
d77444bc90 libfuzzer: fix compiler warnings
- unused sigaction/setitimer result (used in assert)
- unchecked fscanf return value
- signed/unsigned comparison

llvm-svn: 262472
2016-03-02 09:54:40 +00:00
Kostya Serebryany
96af1208c1 [libFuzzer] deprecate exit_on_first flag
llvm-svn: 262417
2016-03-01 22:33:14 +00:00
Kostya Serebryany
d5755334e5 [libFuzzer] add generic signal handlers so that libFuzzer can report at least something if ASan is not handlig the signals for us. Remove abort_on_timeout flag.
llvm-svn: 262415
2016-03-01 22:19:21 +00:00
Kostya Serebryany
306353eaf8 [libFuzzer] remove FuzzerSanitizerOptions.cpp
llvm-svn: 262354
2016-03-01 17:46:32 +00:00
Rafael Espindola
c165498992 Refactor duplicated code for linking with pthread.
llvm-svn: 262344
2016-03-01 15:54:40 +00:00
Kostya Serebryany
33b6a19483 [libFuzzer] fixing the bot
llvm-svn: 262106
2016-02-27 03:14:23 +00:00
Kostya Serebryany
471f3a8bda [libFuzzer] speedup path coverage handling
llvm-svn: 262102
2016-02-27 01:50:16 +00:00
Kostya Serebryany
503e17c728 [libFuzzer] add -print_final_stats=1 flag
llvm-svn: 262084
2016-02-26 22:42:23 +00:00
Kostya Serebryany
a9a412139e [libFuzzer] initial implementation of path coverage based on -fsanitize-coverage=trace-pc. This does not scale well yet, but already cracks FullCoverageSetTest in seconds
llvm-svn: 262073
2016-02-26 21:33:56 +00:00
Kostya Serebryany
7ef7f142ff [libFuzzer] only read MaxLen bytes from every file in the corpus to speedup loading the corpus
llvm-svn: 261267
2016-02-18 21:49:10 +00:00
Kostya Serebryany
080284668c [libFuzzer] fix the libFuzzer bot
llvm-svn: 261184
2016-02-18 02:02:40 +00:00
Kostya Serebryany
a45a009f24 [libFuzzer] don't timeout when loading the corpus. Be a bit more verbose when loading large corpus.
llvm-svn: 261143
2016-02-17 19:42:34 +00:00
Kostya Serebryany
abc380db58 [libFuzzer] remove std::vector operations from hot paths, NFC
llvm-svn: 260829
2016-02-13 17:56:51 +00:00
Kostya Serebryany
bf966c5f23 [libFuzzer] don't require seed in fuzzer::Mutate, instead use the global Fuzzer object for fuzzer::Mutate. This makes custom mutators fast
llvm-svn: 260810
2016-02-13 06:24:18 +00:00
Kostya Serebryany
ef83d4c558 [libFuzzer] remove the C++-ish variant of FuzzerDriver from the interface
llvm-svn: 260801
2016-02-13 03:59:26 +00:00
Kostya Serebryany
abf7df0972 [libFuzzer] simplify CTOR of MutationDispatcher
llvm-svn: 260800
2016-02-13 03:46:26 +00:00
Kostya Serebryany
cca951bf4c [libFuzzer] get rid of MutationDispatcher::Impl (simplify the code; NFC)
llvm-svn: 260799
2016-02-13 03:37:24 +00:00
Kostya Serebryany
b9687a1cc3 [libFuzzer] get rid of UserSuppliedFuzzer; NFC
llvm-svn: 260798
2016-02-13 03:25:16 +00:00
Kostya Serebryany
9bf814b9ec [libFuzzer] simplify the code around Random. NFC
llvm-svn: 260797
2016-02-13 03:00:53 +00:00