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path: root/lib/fuzzer/FuzzerFork.cpp
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* [libFuzzer] implement a better queue for the fork mode. Add an internal flag ↵Kostya Serebryany2019-06-141-34/+50
| | | | | | -stop_file to allow graceful shutdown of fuzzing. Enhance the logging in the fork mode git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@363470 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] simplify the DFT trace collection using the new faster DFSan ↵Kostya Serebryany2019-06-141-9/+10
| | | | | | mode that traces up to 16 labels at a time and never runs out of labels. Second attempt. This time with a fix for windows (putenv instead of setenv)) git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@363445 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r363326 "[libFuzzer] simplify the DFT trace collection using the new ↵Hans Wennborg2019-06-141-10/+9
| | | | | | | | | | | | faster DFSan mode that traces up to 16 labels at a time and never runs out of labels." It broke the Windows build: C:\b\s\w\ir\cache\builder\src\third_party\llvm\compiler-rt\lib\fuzzer\FuzzerDataFlowTrace.cpp(243): error C3861: 'setenv': identifier not found This also reverts the follow-up r363327. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@363358 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] simplify the DFT trace collection using the new faster DFSan ↵Kostya Serebryany2019-06-131-9/+10
| | | | | | mode that traces up to 16 labels at a time and never runs out of labels. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@363326 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] automatically collect the data flow trace (DFT) in the fork mode ↵Kostya Serebryany2019-05-231-2/+34
| | | | | | if -collect_data_flow= is given git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@361448 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Replace -seed_corpus to better support fork mode on WinJonathan Metzman2019-04-301-2/+7
| | | | | | | | | | | | | | | | | | Summary: Pass seed corpus list in a file to get around argument length limits on Windows. This limit was preventing many uses of fork mode on Windows. Reviewers: kcc, morehouse Reviewed By: kcc Subscribers: #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D60980 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359610 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] in fork mode, make sure the child stats are always collected. ↵Kostya Serebryany2019-04-191-2/+3
| | | | | | This should fix the flakiness in fork-ubsan.test git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@358726 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Remove tautological compare.Matt Morehouse2019-04-161-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@358510 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] speedup the merge step in the fork mode by merging only the ↵Kostya Serebryany2019-04-131-4/+31
| | | | | | files that have unique features. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@358320 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] support -runs=N in the fork mode. Make sure we see one-line ↵Kostya Serebryany2019-04-121-1/+9
| | | | | | reports from ubsan in the fork mode. Test both git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@358306 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer][Windows] Port fork mode to WindowsJonathan Metzman2019-02-271-5/+4
| | | | | | | | | | | | | | | | | | | | | Summary: Port libFuzzer's fork mode to Windows. Implement Windows versions of MkDir, RmDir, and IterateDirRecursive to do this. Don't print error messages under new normal uses of FileSize (on a non-existent file). Implement portable way of piping output to /dev/null. Fix test for Windows and comment fork-sigusr.test on why it won't be ported to Win. Reviewers: zturner Reviewed By: zturner Subscribers: kcc, zturner, jdoerfert, #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D58513 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355019 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] fork mode: try harder to cleanup after itselfKostya Serebryany2019-02-161-11/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354186 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] form mode: add -ignore_crashes flag, honor the max_total_time ↵Kostya Serebryany2019-02-151-16/+56
| | | | | | flag, print the number of ooms/timeouts/crashes, fix a typo git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354175 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] print new functions as they are discovered in the fork modeKostya Serebryany2019-02-151-1/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354092 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] when doing the merge, keep track of the coveraged edges, not ↵Kostya Serebryany2019-02-151-5/+7
| | | | | | just features git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354087 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] better stats for the fork modeKostya Serebryany2019-02-141-5/+44
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354061 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] trying to fix the bot (can't reproduce the build failure locally)Kostya Serebryany2019-02-141-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354000 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] add threads to the fork mode: now you can pass -fork=N to run N ↵Kostya Serebryany2019-02-141-88/+145
| | | | | | concurrent workers. Fork mode is still work-in-progress. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@353997 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] a bit of refactoring of the fork modeKostya Serebryany2019-02-131-68/+106
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@353910 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] move the implementation of the fork mode into a separate fileKostya Serebryany2019-02-121-0/+127
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@353891 91177308-0d34-0410-b5e6-96231b3b80d8
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