87a598e19f
[libFuzzer] simplify the TracePC logic
...
llvm-svn: 282222
2016-09-23 01:20:07 +00:00
d28099de5d
[libFuzzer] change ValueBitMap to remember the number of bits in it
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llvm-svn: 282216
2016-09-23 00:22:46 +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
8658618ea0
[libFuzzer] more refactoring
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llvm-svn: 282113
2016-09-21 21:17:23 +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
b706b481ba
[libFuzzer] add -print_coverage=1 flag to print coverage directly from libFuzzer
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llvm-svn: 281866
2016-09-18 21:47:08 +00:00
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
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llvm-svn: 281845
2016-09-18 04:52:23 +00:00
bc3789a919
[libFuzzer] properly reset the guards when reseting the coverage. Also try to fix check-fuzzer on the bot
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llvm-svn: 281814
2016-09-17 06:01:55 +00:00
3e36ec1d18
[libFuzzer] change trace-pc to use 8-byte guards
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llvm-svn: 281810
2016-09-17 05:04:47 +00:00
0984517021
[libFuzzer] make caller-callee feedback work with trace-pc-guard
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llvm-svn: 281667
2016-09-15 22:16:15 +00:00
5350178487
[libFuzzer] implement print_pcs with trace-pc-guard. Change the trace-pc-guard heuristic for 8-bit counters to look more like in AFL (not that it's provable better, but the existin test preferes this heuristic)
...
llvm-svn: 281577
2016-09-15 04:36:45 +00:00
a5277d59d0
[libFuzzer] add 8-bit counters to trace-pc-guard handler
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llvm-svn: 281568
2016-09-15 01:30:18 +00:00
a00b243c75
[libFuzzer] start using trace-pc-guard as an alternative source of coverage
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llvm-svn: 281435
2016-09-14 02:13:06 +00:00
32661f9d66
[libFuzzer] add more __attribute__((visibility("default")))
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llvm-svn: 279143
2016-08-18 20:52:52 +00:00
c98ef718ea
[libFuzzer] refactoring around PCMap, NFC
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llvm-svn: 278825
2016-08-16 17:37:13 +00:00
5914407185
[LibFuzzer] Provide stub implementation of __sanitizer_cov_trace_pc_indir
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Calls to this function are currently injected by the
``SanitizerCoverageModule`` pass when the both the ``indirect-calls``
and ``trace-pc`` sanitizer coverage options are enabled and the code
being instrumented has indirect calls. Previously because LibFuzzer did
not define this function this would lead to link errors when building
some of the tests on OSX.
Differential Revision: http://reviews.llvm.org/D20946
llvm-svn: 271938
2016-06-06 20:27:09 +00:00
1aa501e7e8
[libfuzzer] Refactoring coverage state-management code.
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It is now less state-dependent and will allow easier comparing of
coverages of different units.
Differential Revision: http://reviews.llvm.org/D20085
llvm-svn: 269140
2016-05-10 23:43:15 +00:00
2d4f8f168b
[libFuzzer] speedup path coverage handling
...
llvm-svn: 262102
2016-02-27 01:50:16 +00:00
da63c1d09a
[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