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* make add_llvm_fuzzer calls slightly more consisten with other cmakeNico Weber2018-05-111-1/+3
| | | | llvm-svn: 332112
* cmake: Invent add_llvm_fuzzer to set up fuzzer targetsJustin Bogner2017-08-311-12/+7
| | | | | | | | | | | | | | | | This moves the cmake configuration for fuzzers in LLVM to a new macro, add_llvm_fuzzer. This will make it easier to keep things consistent while implementing llvm.org/pr34314. I've also made a couple of minor functional changes here: - the fuzzers now use add_llvm_executable rather than add_llvm_tool. This means they won't create install targets and stuff like that, because those made little sense for these fuzzers. - I've grouped these under "Fuzzers" rather than in with "Tools" for people who build with IDEs. llvm-svn: 312200
* Update LLVM fuzzers to use the libFuzzer bundled with the compiler toolchainGeorge Karpenkov2017-08-231-4/+3
| | | | | | Differential Revision: https://reviews.llvm.org/D37041 llvm-svn: 311515
* Remove every uses of getGlobalContext() in LLVM (but the C API)Mehdi Amini2016-04-141-1/+1
| | | | | | | | | | | At the same time, fixes InstructionsTest::CastInst unittest: yes you can leave the IR in an invalid state and exit when you don't destroy the context (like the global one), no longer now. This is the first part of http://reviews.llvm.org/D19094 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 266379
* [libFuzzer] make LLVMFuzzerTestOneInput (the fuzzer target function) return ↵Kostya Serebryany2015-10-021-3/+4
| | | | | | int instead of void. The actual return value is not *yet* used (and expected to be 0). This change is API breaking, so the fuzzers will need to be updated. llvm-svn: 249214
* Build a lib/Fuzzer version for llvm-as.Karl Schimpf2015-08-312-0/+88
Summary: This CL is associated with a fuzzing effort to find bugs in LLVM. The first step is to fuzz llvm-as to find potential issues in generating IR. Both afl-fuzz and LLVM's lib/Fuzzer are being used. This CL introduces the executable that implements the in-process fuzzer using LLVM's lib/Fuzzer. The motivation for using lib/Fuzzer is based on time comparisons between afl-fuzz and lib/Fuzzer. Early results show that per-process, the lib/Fuzzer implemenation of llvm-as (i.e. this CL) generates over 30 times the number of mutations found by afl-fuzz, per hour runtime. The speedup is due to the removal of overhead of forking a process, and loading the executable into memory. I placed this under the tools directory, since it is an executable. It is also only conditionally built if (using cmake) the flag LLVM_USEE_SANITIZE_COVERAGE is used, so that it isn't built by default. Reviewers: kcc, filcab Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D12438 llvm-svn: 246458
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