6ac64c3a6d
[libFuzzer] replace std::random_shuffle with std::shuffle as std::random_shuffle is being deprecated in C++17. Also simplify fuzzer::Random. NFC
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llvm-svn: 294366
2017-02-07 22:37:34 +00:00
e8ee89f8b0
Include <algorithm> for std::max etc
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llvm-svn: 290730
2016-12-30 00:15:40 +00:00
2a8440df70
[libFuzzer] add an experimental flag -experimental_len_control=1 that sets max_len to 1M and tries to increases the actual max sizes of mutations very gradually (second attempt)
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llvm-svn: 290637
2016-12-27 23:24:55 +00:00
fa1030e40b
Revert "[libFuzzer] add an experimental flag -experimental_len_control=1 that sets max_len to 1M and tries to increases the actual max sizes of mutations very gradually. Also remove a bit of dead code"
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This reverts commit r289998.
See comment:
https://reviews.llvm.org/rL289998
llvm-svn: 290043
2016-12-17 12:27:49 +00:00
be7003f99c
[libFuzzer] add an experimental flag -experimental_len_control=1 that sets max_len to 1M and tries to increases the actual max sizes of mutations very gradually. Also remove a bit of dead code
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llvm-svn: 289998
2016-12-16 22:42:05 +00:00
7c1defd738
[libFuzzer] Avoid name collision with Windows API.
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Windows uses some macros to replace DeleteFile() by DeleteFileA() or
DeleteFileW(). This was causing an error at link time.
DeleteFile was renamed to RemoveFile().
Differential Revision: https://reviews.llvm.org/D27577
llvm-svn: 289563
2016-12-13 17:46:40 +00:00
178fe58745
[libFuzzer] Clean up headers and file formatting of LibFuzzer files.
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Reorganize #includes to follow LLVM Coding Standards.
Include some missing headers. Required to use `Printf()`.
Aside from that, this patch contains no functional change.
It is purely a re-organization.
Differential Revision: https://reviews.llvm.org/D27363
llvm-svn: 289560
2016-12-13 17:46:11 +00:00
24a148b1d4
[LibFuzzer] Split up some functions among different headers.
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In an effort to get libfuzzer working on Windows, we need to make
a distinction between what functions require platform specific
code (e.g. different code on Windows vs Linux) and what code
doesn't. IO functions, for example, tend to be platform
specific.
This patch separates out some of the functions which will need
to have platform specific implementations into different headers,
so that we can then provide different implementations for each
platform.
Aside from that, this patch contains no functional change. It
is purely a re-organization.
Patch by Marcos Pividori
Differential Revision: https://reviews.llvm.org/D27230
llvm-svn: 288264
2016-11-30 19:06:14 +00:00
a5f94fb6c9
[libFuzzer] add -trace_cmp=1 (guiding mutations based on the observed CMP instructions). This is a reincarnation of the previously deleted -use_traces, but using a different approach for collecting traces. Still a toy, but at least it scales well. Also fix -merge in trace-pc-guard mode
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llvm-svn: 284273
2016-10-14 20:20:33 +00:00
c5325ed29d
[libFuzzer] when shrinking the corpus, delete evicted files previously created by the current process
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llvm-svn: 283682
2016-10-08 23:24:45 +00:00
cd04ec25dd
[libFuzzer] fix use-after-free in libFuzzer found by ... fuzzing.
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llvm-svn: 283675
2016-10-08 21:57:48 +00:00
936b1e774f
[libFuzzer] be more careful with memory usage, print peak rss in status lines
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llvm-svn: 283418
2016-10-06 05:14:00 +00:00
1c73f1bf27
[libFuzzer] refactoring to make -shrink=1 work for value profile, added a test.
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llvm-svn: 283409
2016-10-05 22:56:21 +00:00
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
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llvm-svn: 283279
2016-10-05 00:25:17 +00:00
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)
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llvm-svn: 283178
2016-10-04 01:51:44 +00:00
d216922a80
[libFuzzer] implement the -shrink=1 option that tires to make elements of the corpus smaller, off by default
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llvm-svn: 282995
2016-10-01 01:04:29 +00:00
2c55613a08
[libFuzzer] more the feature set to InputCorpus; on feature update, change the feature counter of the old best input
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llvm-svn: 282829
2016-09-30 01:19:56 +00:00
16a145fd0f
[libFuzzer] fix merging with trace-pc-guard
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llvm-svn: 282224
2016-09-23 01:58:51 +00:00
624f59f4d8
[libFuzzer] add 'features' to the corpus elements, allow mutations with Size > MaxSize, fix sha1 in corpus stats; various refactorings
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llvm-svn: 282129
2016-09-22 01:34:58 +00:00
29bb664075
[libFuzzer] add stats to the corpus; more refactoring
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llvm-svn: 282121
2016-09-21 22:42:17 +00:00
20801e1b8a
[libFuzzer] more refactoring; don't compute sha1sum every time we mutate a unit from the corpus, use the stored one.
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llvm-svn: 282115
2016-09-21 21:41:48 +00:00
6f5a804cdb
[libFuzzer] refactoring: split the large header into many; NFC
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llvm-svn: 282044
2016-09-21 01:50:50 +00:00
Kostya Serebryany