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646 Commits

Author SHA1 Message Date
Vitaly Buka
f79a56c244 [libFuzzer] fix type in signal name. 
Fixes PR32576.

Patch by Jakub Zawadzki.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299968 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-04-11 18:20:05 +00:00
Reid Kleckner
d6780ccb60 [Fuzzer] Flush std::cout before aborting in CxxStringEqTest 
On Windows, abort() does not appear to flush std::cout. Should fix red
sanitizer-windows bot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299398 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-04-03 23:00:25 +00:00
Kostya Serebryany
b6a531620b [libFuzzer] simplify the code a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299180 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-31 04:17:45 +00:00
Kostya Serebryany
e857d23c61 [libFuzzer] tests: don't test 64-bit comparison on 32-bit builds 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299179 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-31 03:51:40 +00:00
Kostya Serebryany
15e73a64fc [libFuzzer] ensure that strncmp is not inlined in a test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299177 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-31 03:34:33 +00:00
Kostya Serebryany
f43d588ee8 [libFuzzer] make sure we don't execute libFuzzer's mem* and str* hooks while calling mem*/str* inside libFuzzer itself 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299167 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-31 02:21:28 +00:00
Kostya Serebryany
e10396a06a [libFuzzer] try to fix value-profile-strncmp on the Mac bot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299145 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-31 00:52:39 +00:00
Kostya Serebryany
5b2ce7b2d4 [libFuzzer] remove a stale flag from tests, run value-profile-strncmp.test longer (hopefully, will fix the OSX bot) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299051 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-30 04:22:20 +00:00
Kostya Serebryany
2d9dd043ff [libFuzzer] best effort support for -fsanitize-coverage=trace-pc instrumentation. It is less efficient and precise than -fsanitize-coverage=trace-pc-guard, but still works 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299046 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-30 01:27:20 +00:00
Juergen Ributzka
26cbef5f44 [libfuzzer] Remove XFAIL for OutOfMemory test. 
This test is now passing on Darwin.

See rdar://problem/31282257.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298886 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-27 22:33:05 +00:00
Vitaly Buka
cc4a0d11e4 [libFuzzer] Fix test on Windows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298757 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-25 01:19:45 +00:00
Kostya Serebryany
2061be0b30 [libFuzzer] read asan's dedup_token while minimizing a crash and stop minimization if another bug was found during minimization (https://github.com/google/oss-fuzz/issues/452) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298755 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-25 00:56:08 +00:00
Kostya Serebryany
e1646b6e51 [libFuzzer] be more careful when calling strlen of strcmp parameters, PR32357 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298746 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-24 22:19:52 +00:00
Kostya Serebryany
a149d64a7e [libFuzzer] honor -exact_artifact_path for all intermediate files during crash minimization (https://github.com/google/oss-fuzz/issues/250) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298740 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-24 21:09:16 +00:00
Kostya Serebryany
3519a8a96e [libFuzzer] split two tests to get more parallelism in test runs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298673 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-24 00:51:18 +00:00
Kostya Serebryany
300f834d9e [libFuzzer] increase kFeatureSetSize to 2^21 and make InputCorpus scale to that size. This will potentially make libFuzzer more sensitive on targets with lots of signals 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298671 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-24 00:45:15 +00:00
Kostya Serebryany
ce68a403f2 [libFuzzer] fix non-linux build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298666 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-23 23:48:47 +00:00
Kostya Serebryany
550e23d356 [libFuzzer] create experimental support for user-provided coverage signal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298654 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-23 22:43:12 +00:00
Kostya Serebryany
5db3fb7fb6 [libFuzzer] add two experimental flags to make corpus merging more scalable: -save_coverage_summary/-load_coverage_summary. This is still WIP, the documentation will come later if these flags survive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298548 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-22 20:32:44 +00:00
Kostya Serebryany
31c659fd54 [libFuzzer] inline the code of __sanitizer_cov_trace_pc_guard into it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298032 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-17 01:45:15 +00:00
Kostya Serebryany
2362f32e0e [libFuzzer] Experimenting with dictionary minimization. 
Summary:
Tracking issue: https://github.com/google/oss-fuzz/issues/331


Reviewers: kcc

Reviewed By: kcc

Differential Revision: https://reviews.llvm.org/D30940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298031 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-17 01:40:09 +00:00
Kostya Serebryany
6ee36bcf11 [libFuzzer] add a test with two different bugs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298030 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-17 01:33:16 +00:00
Kostya Serebryany
e79427160e [libFuzzer] add a dummy LLVMFuzzerMutate to afl/afl_driver.cpp (https://github.com/google/oss-fuzz/issues/460) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297919 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-15 23:54:40 +00:00
Kostya Serebryany
e6224abb77 [libFuzzer] call __sanitizer_print_memory_profile with two params 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297916 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-15 23:27:53 +00:00
Vitaly Buka
83daa29a86 Revert "[libFuzzer] Use ChooseUnitIdxToMutate to pick item for crossover." 
Fails LLVMFuzzer.LLVMFuzzer.value-profile-strncmp.test.

This reverts commit r297891.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297912 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-15 23:08:18 +00:00
Vitaly Buka
e925a388a3 [libFuzzer] Use ChooseUnitIdxToMutate to pick item for crossover. 
Differential Revision: https://reviews.llvm.org/D30683

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297891 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-15 20:59:27 +00:00
Kostya Serebryany
3785710791 [libFuzzer] remove even more stale code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297797 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-15 00:39:06 +00:00
Kostya Serebryany
59249af18d [libFuzzer] simplify code a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297796 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-15 00:34:25 +00:00
Kostya Serebryany
ae8f1d8b85 [libFuzzer] remove more stale code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297785 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-14 21:47:52 +00:00
Kostya Serebryany
05628fa8ff [libFuzzer] don't clear Counters in TracePC::CollectFeatures since they will be cleared anyway in ResetMaps 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297783 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-14 21:40:53 +00:00
Kostya Serebryany
d18970b6b1 [libFuzzer] remove stale code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297781 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-14 21:30:14 +00:00
Vitaly Buka
f6fe3416fb [libFuzzer] Reorder includes in test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297692 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-13 23:49:00 +00:00
Vitaly Buka
29082d9fca [libFuzzer] Fix compilation of CustomCrossOverAndMutateTest on Windows 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297690 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-13 23:46:30 +00:00
Kostya Serebryany
cef724571c [libFuzzer] add more iterations to LLVMFuzzer-Memcmp64BytesTest 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297554 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-11 05:14:49 +00:00
Kostya Serebryany
fbfddad6eb [libFuzzer] reduce the number of vector resizes during merge (https://github.com/google/oss-fuzz/issues/445) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297551 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-11 02:50:47 +00:00
Kostya Serebryany
3bc8c19932 [libFuzzer] print how much memory is consumed by the outer merge process (https://github.com/google/oss-fuzz/issues/445) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297546 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-11 02:26:20 +00:00
Kostya Serebryany
47ec3386d2 [libFuzzer] add test/LargeTest.cpp, mostly for manual experiments with large number of edges, not yet suitable for unit testing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297544 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-11 01:54:06 +00:00
Kostya Serebryany
f0f231aaf9 [libFuzzer] remove fuzzer-jobs.test which is flaky and not very useful 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297543 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-11 01:48:54 +00:00
Vitaly Buka
c3e4809203 [fuzzer] Don't crash if LLVMFuzzerMutate was called by CustomCrossOver 
Reviewers: kcc

Subscribers: llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D30682

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297202 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-07 20:37:38 +00:00
Kuba Mracek
66193c91b4 Un-XFAIL Fuzzer/test/dump_coverage.test. This now passes on Darwin (after r297094). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297110 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-07 01:01:38 +00:00
Mike Aizatsky
a5015a4186 [libfuzzer] do not use xargs for shell expansion 
Summary:
After https://reviews.llvm.org/rL296904 xargs shouldn't be necesssary.

Differential Revision: https://reviews.llvm.org/D30371

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297094 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-06 23:42:14 +00:00
Mehdi Amini
a5db565998 un-Xfail Fuzzer test that decided to pass on Green Dragon 
It may be flacky, I'll turn it into unsupported if it fails again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296913 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-03-03 21:28:05 +00:00
Kostya Serebryany
27a5a29184 [libFuzzer] remove usage of the old coverage instrumentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296536 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-28 23:23:48 +00:00
Mehdi Amini
00684f5d0c Mark some libFuzzer tests as XFAIL'd on Darwin 
We're bringing up a bot on Green Dragon right now:

http://green.lab.llvm.org/green/view/Experimental/job/libFuzzer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296526 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-28 21:45:59 +00:00
Justin Bogner
af8c7cedc1 [libFuzzer] Update traces hooks test after r293741 
This test now passes on darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295902 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-22 23:12:36 +00:00
Justin Bogner
28c53fa4a0 [libFuzzer] Mark a test that infinite loops as unsupported 
We need to investigate this, but for now it just causes too much
headache when trying to run these tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295900 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-22 23:05:17 +00:00
Kostya Serebryany
8a5fe4855b [libFuzzer] increase the size of FixedWord from 27 to 64, see PR31950 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295117 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-14 23:02:37 +00:00
Kostya Serebryany
36924d4080 Use "%zd" format specifier for printing number of testcases executed. 
Summary:
This helps to avoid signed integer overflow after running a fast fuzz target for several hours, e.g.:

<...>
Done -1097903291 runs in 54001 second(s)



Reviewers: kcc

Reviewed By: kcc

Differential Revision: https://reviews.llvm.org/D29941

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295112 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-14 22:14:36 +00:00
Marcos Pividori
fc4c8411e4 [libFuzzer] Use stoull instead of stol to ensure 64 bits. 
Differential revision: https://reviews.llvm.org/D29831

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294769 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-10 18:44:14 +00:00
Eric Fiselier
a61fc423f3 [CMake] Fix pthread handling for out-of-tree builds 
LLVM defines `PTHREAD_LIB` which is used by AddLLVM.cmake and various projects
to correctly link the threading library when needed. Unfortunately
`PTHREAD_LIB` is defined by LLVM's `config-ix.cmake` file which isn't installed
and therefore can't be used when configuring out-of-tree builds. This causes
such builds to fail since `pthread` isn't being correctly linked.

This patch attempts to fix that problem by renaming and exporting
`LLVM_PTHREAD_LIB` as part of`LLVMConfig.cmake`. I renamed `PTHREAD_LIB`
because It seemed likely to cause collisions with downstream users of
`LLVMConfig.cmake`.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294690 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-02-10 01:59:20 +00:00