6c77811a29
[libFuzzer] replace 'auto' with 'auto *' to better follow the LLVM style
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llvm-svn: 286870
2016-11-14 19:21:38 +00:00
53c894d257
[libFuzzer] use a valid ASCII string for a dummy seed corpus
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llvm-svn: 286702
2016-11-12 02:27:21 +00:00
fc1c405f98
[libFuzzer] use less stack
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llvm-svn: 286689
2016-11-12 00:24:35 +00:00
235679181b
[libFuzzer] do not initialize parts of TracePC -- let them be initialized by the linker. Add no-msan attribute to the memcmp hook.
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llvm-svn: 286665
2016-11-11 23:06:53 +00:00
8a56917492
[libFuzzer] fix -error_exitcode=N, now with a test
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llvm-svn: 285958
2016-11-03 19:31:18 +00:00
bcfb0802e2
[libFuzzer] enable use_cmp by default
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llvm-svn: 285353
2016-10-27 21:44:37 +00:00
94c427c23e
[libFuzzer] speculatively trying to fix the Mac build; second attempt
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llvm-svn: 285262
2016-10-27 00:36:38 +00:00
3d945f6247
[libFuzzer] revert 285259 -- hit commit too soon
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llvm-svn: 285260
2016-10-27 00:24:34 +00:00
15cd6b4b10
[libFuzzer] speculatively trying to fix the Mac build
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llvm-svn: 285259
2016-10-27 00:22:39 +00:00
2fabecaee3
[libFuzzer] simplify TracePC::HandleTrace even further. Also, when dealing with -exit_on_src_pos, symbolize every PC only once
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llvm-svn: 285223
2016-10-26 18:52:04 +00:00
06b8757b57
[libFuzzer] simplify the code in TracePC::HandleTrace a bit more
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llvm-svn: 285147
2016-10-26 00:42:52 +00:00
a5b2e54fcb
[libFuzzer] simplify the code to print new PCs
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llvm-svn: 285145
2016-10-26 00:20:51 +00:00
275e260258
[libFuzzer] simplify the code in TracePC::HandleTrace
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llvm-svn: 285142
2016-10-25 23:52:25 +00:00
117976818e
[libFuzzer] add StandaloneFuzzTargetMain.c and a test for it
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llvm-svn: 285135
2016-10-25 22:30:34 +00:00
c48c93184a
[libFuzzer] when mutating based on CMP traces also try adding +/- 1 to the desired bytes. Add another test for use_cmp
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llvm-svn: 285109
2016-10-25 20:15:15 +00:00
3364f90783
[libFuzzer] simplify the code for use_cmp, also use the position hint when available, add a test
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llvm-svn: 285049
2016-10-25 02:04:43 +00:00
65f102d4d2
[libFuzzer] mutation: insert the size of the input in bytes as one of the ways to mutate a binary integer
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llvm-svn: 284909
2016-10-22 03:48:53 +00:00
10ae9e23a3
[libFuzzer] typo in a test
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llvm-svn: 284903
2016-10-22 01:07:38 +00:00
2bfff021ad
[libFuzzer] add a test for asan's strict_string_checks=1
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llvm-svn: 284902
2016-10-22 00:05:44 +00:00
ac2a2a86e4
Fix -Wunused-variable warning in libFuzzer
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llvm-svn: 284838
2016-10-21 16:26:27 +00:00
95b1a434d2
[libFuzzer] extend -print_coverage to also print uncovered lines, functions, and files.
...
Example of output:
COVERAGE:
COVERED: in DSO2(int) /pathto/DSO2.cpp:6
COVERED: in DSO2(int) /pathto/DSO2.cpp:8
COVERED: in DSO1(int) /pathto/DSO1.cpp:6
COVERED: in DSO1(int) /pathto/DSO1.cpp:8
COVERED: in LLVMFuzzerTestOneInput /pathto/DSOTestMain.cpp:16
COVERED: in LLVMFuzzerTestOneInput /pathto/DSOTestMain.cpp:19
COVERED: in LLVMFuzzerTestOneInput /pathto/DSOTestMain.cpp:25
COVERED: in LLVMFuzzerTestOneInput /pathto/DSOTestMain.cpp:26
MODULE_WITH_COVERAGE: /pathto/libLLVMFuzzer-DSO1.so
UNCOVERED_LINE: in DSO1(int) /pathto/DSO1.cpp:9
UNCOVERED_FUNC: in Uncovered1()
MODULE_WITH_COVERAGE: /pathto/libLLVMFuzzer-DSO2.so
UNCOVERED_LINE: in DSO2(int) /pathto/DSO2.cpp:9
UNCOVERED_FUNC: in Uncovered2()
MODULE_WITH_COVERAGE: /pathto/LLVMFuzzer-DSOTest
UNCOVERED_LINE: in LLVMFuzzerTestOneInput /pathto/DSOTestMain.cpp:21
UNCOVERED_LINE: in LLVMFuzzerTestOneInput /pathto/DSOTestMain.cpp:27
UNCOVERED_FILE: /pathto/DSOTestExtra.cpp
Several things are not perfect here:
* we are using objdump+awk instead of sancov because sancov does not support DSOs yet.
* this breaks in the presence of ASAN_OPTIONS=strip_path_prefix=...
(need to implement another API to get the module name by PC)
llvm-svn: 284554
2016-10-19 00:12:03 +00:00
bb59ef77ca
[libFuzzer] detect leaks after every run when executing fixed inputs (./fuzzer -runs=1000000 my-file)
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llvm-svn: 284514
2016-10-18 18:38:08 +00:00
8dfed45cd4
[libFuzzer] reshuffle the code for -exit_on_src_pos and -exit_on_item
...
llvm-svn: 284508
2016-10-18 18:06:05 +00:00
9a4b10a56f
[libFuzzer] swap bytes in integers when handling CMP traces
...
llvm-svn: 284301
2016-10-15 04:00:07 +00:00
f9b8e8b117
[libFuzzer] better algorithm for -minimize_crash
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llvm-svn: 284299
2016-10-15 01:00:24 +00:00
e450e40741
[libFuzzer] remove subdir fuzzer-test-suite as it is now superseded with https://github.com/google/fuzzer-test-suite
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llvm-svn: 284275
2016-10-14 20:26:40 +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
0381374f96
[libFuzzer] more detailed message for disabled leak detection
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llvm-svn: 284169
2016-10-13 22:24:10 +00:00
a17d23eaa7
[libFuzzer] add -trace_malloc= flag
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llvm-svn: 284149
2016-10-13 19:06:46 +00:00
17d176e16b
[libFuzzer] reapply r283946: refactoring to speed things up, NFC. Now with a fix for gcc build
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llvm-svn: 284132
2016-10-13 16:19:09 +00:00
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
a09d11e108
[libFuzzer] refactoring to speed things up, NFC
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llvm-svn: 283946
2016-10-11 21:27:37 +00:00
d19919a80e
[libFuzzer] implement value profile for switch, increase the size of the PCs array, make sure we don't overflow it
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llvm-svn: 283841
2016-10-11 01:14:41 +00:00
3e0e901a18
[libFuzzer] add switch tests
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llvm-svn: 283840
2016-10-11 01:13:32 +00:00
7abb95d3b3
[libFuzzer] make a test less flaky
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llvm-svn: 283686
2016-10-09 03:45:38 +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
9adc7c8b4a
[libFuzzer] control the reload interval by a flag, make it 10 seconds by default
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llvm-svn: 283676
2016-10-08 22:12:14 +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
3b564e9765
[libFuzzer] when re-running for lsan, don't look at the coverage
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llvm-svn: 283411
2016-10-05 23:31:01 +00:00
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
379359c53a
[libFuzzer] add ShrinkValueProfileTest, move code around, NFC
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llvm-svn: 283286
2016-10-05 01:09:40 +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
4820cc988f
[libFuzzer] remove dfsan support and some related stale code. This is not being used and as is is pretty weak anyway
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llvm-svn: 283187
2016-10-04 06:08:46 +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
a5f1adab56
[libFuzzer] add fuzzer test for libxml2, finds https://bugzilla.gnome.org/show_bug.cgi?id=751631
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llvm-svn: 283024
2016-10-01 07:37:40 +00:00
d1f31d0a49
[libFuzzer] fix a recent bugs (buffer overflow)
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llvm-svn: 283021
2016-10-01 07:13:25 +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
90f8f36bca
[libFuzzer] remove some experimental code
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llvm-svn: 282983
2016-09-30 23:29:27 +00:00
7022b94687
[libFuzzer] fix openssl fuzzer tests when running on a machine w/o openssl installed
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llvm-svn: 282972
2016-09-30 22:35:08 +00:00
Kostya Serebryany