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path: root/lib/fuzzer/FuzzerIOPosix.cpp
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* [libFuzzer] add -features_dir= flag to dump unique input features on diskKostya Serebryany2019-04-131-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@358317 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer][Windows] Port fork mode to WindowsJonathan Metzman2019-02-271-0/+5
| | | | | | | | | | | | | | | | | | | | | 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] form mode: add -ignore_crashes flag, honor the max_total_time ↵Kostya Serebryany2019-02-151-2/+2
| | | | | | 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] a bit of refactoring of the fork modeKostya Serebryany2019-02-131-0/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@353910 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] extend the -fork=1 functionality. Still not fully usable, but ↵Kostya Serebryany2019-02-121-1/+8
| | | | | | good enough for the first unit test git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@353775 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Port to WindowsMatt Morehouse2018-08-301-0/+7
| | | | | | | | | | | | | | | | | | | | Summary: Port libFuzzer to windows-msvc. This patch allows libFuzzer targets to be built and run on Windows, using -fsanitize=fuzzer and/or fsanitize=fuzzer-no-link. It allows these forms of coverage instrumentation to work on Windows as well. It does not fix all issues, such as those with -fsanitize-coverage=stack-depth, which is not usable on Windows as of this patch. It also does not fix any libFuzzer integration tests. Nearly all of them fail to compile, fixing them will come in a later patch, so libFuzzer tests are disabled on Windows until them. Patch By: metzman Reviewers: morehouse, rnk Reviewed By: morehouse, rnk Subscribers: #sanitizers, delcypher, morehouse, kcc, eraman Differential Revision: https://reviews.llvm.org/D51022 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@341082 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[libFuzzer] Port to Windows"Matt Morehouse2018-08-291-7/+0
| | | | | | This reverts r340949 due to bot breakage again. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@340954 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Port to WindowsMatt Morehouse2018-08-291-0/+7
| | | | | | | | | | | | | | | | | | Summary: Port libFuzzer to windows-msvc. This patch allows libFuzzer targets to be built and run on Windows, using -fsanitize=fuzzer and/or fsanitize=fuzzer-no-link. It allows these forms of coverage instrumentation to work on Windows as well. It does not fix all issues, such as those with -fsanitize-coverage=stack-depth, which is not usable on Windows as of this patch. It also does not fix any libFuzzer integration tests. Nearly all of them fail to compile, fixing them will come in a later patch, so libFuzzer tests are disabled on Windows until them. Reviewers: morehouse, rnk Reviewed By: morehouse, rnk Subscribers: #sanitizers, delcypher, morehouse, kcc, eraman Differential Revision: https://reviews.llvm.org/D51022 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@340949 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[libFuzzer] Port to Windows"Matt Morehouse2018-08-281-7/+0
| | | | | | This reverts commit r340860 due to failing tests. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@340867 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Port to WindowsMatt Morehouse2018-08-281-0/+7
| | | | | | | | | | | | | | | | | | | | Summary: Port libFuzzer to windows-msvc. This patch allows libFuzzer targets to be built and run on Windows, using -fsanitize=fuzzer and/or fsanitize=fuzzer-no-link. It allows these forms of coverage instrumentation to work on Windows as well. It does not fix all issues, such as those with -fsanitize-coverage=stack-depth, which is not usable on Windows as of this patch. It also does not fix any libFuzzer integration tests. Nearly all of them fail to compile, fixing them will come in a later patch, so libFuzzer tests are disabled on Windows until them. Patch By: metzman Reviewers: morehouse, rnk Reviewed By: morehouse, rnk Subscribers: morehouse, kcc, eraman Differential Revision: https://reviews.llvm.org/D51022 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@340860 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Print a correct error message when a directory can't beMatt Morehouse2018-04-061-1/+1
| | | | | | | | | | | | | | | | | | | | | opened. Summary: Currently if the directory cannot be opened for a reason other than non-existence (e.g. too many open file descriptors) the error message printed is incredibly confusing. Patch By: Alex Gaynor Reviewers: kcc, morehouse Reviewed By: morehouse Subscribers: delcypher, llvm-commits, Sanitizers Differential Revision: https://reviews.llvm.org/D45322 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@329438 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Add support for Fuchsia OS.Matt Morehouse2017-12-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This patch adds the initial support for Fuchsia. - LIBFUZZER_FUCHSIA is added as an OS type in FuzzerDefs.h - Fuchsia is, by design, not POSIX compliant. However, it does use ELF and supports common POSIX I/O functions. Thus, FuzzerExtFunctions.h and FuzzerIO.h are implemented by extending the header guards in FuzzerExtFunctionsWeak.cpp and FuzzerIOPosix.cpp to include LIBFUZZER_FUCHSIA. - The platform-specific portions of FuzzerUtil.h are implemented by FuzzerUtilFuchsia.cpp, which makes use of exception ports, syscalls, and the launchpad library. - The experimental equivalence server is not currently supported, so FuzzerShmem.h is implemented by stub methods in FuzzerShmemFuchsia.cpp. Any future implementation will likely involve VMOs. Tested with ASAN/SanCov on Fuchsia/x86-64 with the canonical toy fuzzer. Patch By: aarongreen Reviewers: kcc, morehouse, flowerhack, phosek Reviewed By: kcc, phosek, Eugene.Zelenko Subscribers: srhines, mgorny, Eugene.Zelenko Differential Revision: https://reviews.llvm.org/D40974 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320210 91177308-0d34-0410-b5e6-96231b3b80d8
* libfuzzer: Fix file listing on some filesystemsKostya Serebryany2017-11-151-2/+12
| | | | | | | | | | | | | | | | | Summary: For some filesystems, readdir will not populate dirent::d_type with valuable information. This causes libfuzzer to proceed with an empty corpus, instead of the file it contains. This has been tested on a server using XFS. It should fix https://bugs.llvm.org//show_bug.cgi?id=25991 Reviewers: kcc Reviewed By: kcc Differential Revision: https://reviews.llvm.org/D40028 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318303 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFUzzer] change the way we load the seed corpora: instead of loading all ↵Kostya Serebryany2017-08-291-0/+7
| | | | | | files and these executing all files, load and execute them one-by-one. This should reduce the memory usage in many cases git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312033 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Use custom allocators for STL containers in libFuzzer.George Karpenkov2017-08-271-1/+1
| | | | | | | | Avoids ODR violations causing spurious ASAN warnings. Differential Revision: https://reviews.llvm.org/D37086 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@311866 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[libFuzzer] Use custom allocators for STL containers in libFuzzer"George Karpenkov2017-08-261-1/+1
| | | | | | This reverts commit 3539efc2f2218dba2bcbd645d0fe276f2b5cf588. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@311831 91177308-0d34-0410-b5e6-96231b3b80d8
* [libFuzzer] Use custom allocators for STL containers in libFuzzerGeorge Karpenkov2017-08-261-1/+1
| | | | | | | | Avoids ODR violations causing spurious ASAN container overflow warnings. Differential Revision: https://reviews.llvm.org/D37086 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@311830 91177308-0d34-0410-b5e6-96231b3b80d8
* Move libFuzzer to compiler_rt.George Karpenkov2017-08-211-0/+123
Resulting library binaries will be named libclang_rt.fuzzer*, and will be placed in Clang toolchain, allowing redistribution. Differential Revision: https://reviews.llvm.org/D36908 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@311407 91177308-0d34-0410-b5e6-96231b3b80d8
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