From e79427160e7786445bfcd58ba68802316fe5cef0 Mon Sep 17 00:00:00 2001 From: Kostya Serebryany Date: Wed, 15 Mar 2017 23:54:40 +0000 Subject: [PATCH] [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 --- lib/Fuzzer/afl/afl_driver.cpp | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/Fuzzer/afl/afl_driver.cpp b/lib/Fuzzer/afl/afl_driver.cpp index fc9589552ba..b3a54e57fce 100644 --- a/lib/Fuzzer/afl/afl_driver.cpp +++ b/lib/Fuzzer/afl/afl_driver.cpp @@ -238,6 +238,13 @@ static void maybe_duplicate_stderr() { } } +// Define LLVMFuzzerMutate to avoid link failures for targets that use it +// with libFuzzer's LLVMFuzzerCustomMutator. +extern "C" size_t LLVMFuzzerMutate(uint8_t *Data, size_t Size, size_t MaxSize) { + assert(false && "LLVMFuzzerMutate should not be called from afl_driver"); + return 0; +} + int main(int argc, char **argv) { fprintf(stderr, "======================= INFO =========================\n" "This binary is built for AFL-fuzz.\n" -- 2.50.1