diff options
author | Matt Morehouse <mascasa@google.com> | 2017-08-18 18:34:39 +0000 |
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committer | Matt Morehouse <mascasa@google.com> | 2017-08-18 18:34:39 +0000 |
commit | ea3d2bfb45fcdf01672ad827d949e99257242924 (patch) | |
tree | fcb63b030c925692a7c45418a6ec47ea6f910798 | |
parent | 3acb7796545327967a7f4762cc0412f0d2f11d09 (diff) |
[clang-proto-fuzzer] Allow user-specified compiler arguments.
Summary:
Arguments can be specified after -ignore_remaining_args=1 to modify
the compiler invocation. For example, the following command-line
will fuzz LLVM with a custom optimization level and target triple:
clang-proto-fuzzer CORPUS/ -ignore_remaining_args -O3 \
-triple arm64-apple-ios9
Reviewers: vitalybuka, kcc
Reviewed By: vitalybuka
Subscribers: aemerson, cfe-commits, kristof.beyls
Differential Revision: https://reviews.llvm.org/D36882
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@311185 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | tools/clang-fuzzer/ExampleClangProtoFuzzer.cpp | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/tools/clang-fuzzer/ExampleClangProtoFuzzer.cpp b/tools/clang-fuzzer/ExampleClangProtoFuzzer.cpp index 23123277c3..ab734e85b8 100644 --- a/tools/clang-fuzzer/ExampleClangProtoFuzzer.cpp +++ b/tools/clang-fuzzer/ExampleClangProtoFuzzer.cpp @@ -20,9 +20,25 @@ #include "src/libfuzzer/libfuzzer_macro.h" +#include <cstring> + using namespace clang_fuzzer; +static std::vector<const char *> CLArgs; + +extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) { + CLArgs.push_back("-O2"); + for (int I = 1; I < *argc; I++) { + if (strcmp((*argv)[I], "-ignore_remaining_args=1") == 0) { + for (I++; I < *argc; I++) + CLArgs.push_back((*argv)[I]); + break; + } + } + return 0; +} + DEFINE_BINARY_PROTO_FUZZER(const Function& input) { auto S = FunctionToString(input); - HandleCXX(S, {"-O2"}); + HandleCXX(S, CLArgs); } |