Reland "[libFuzzer] Support using libc++"
This is needed in case the users of libFuzzer use libc++ in their
code, which the fuzz target (libFuzzer) will be linked against.
When libc++ source is available, we build a private version of it
and link it against libFuzzer which allows using the same static
library against codebases which use both libc++ and libstdc++.
Differential Revision: https://reviews.llvm.org/D37631
llvm-svn: 322755
diff --git a/compiler-rt/lib/fuzzer/FuzzerInterface.h b/compiler-rt/lib/fuzzer/FuzzerInterface.h
index c2c0a39..0f7effb 100644
--- a/compiler-rt/lib/fuzzer/FuzzerInterface.h
+++ b/compiler-rt/lib/fuzzer/FuzzerInterface.h
@@ -30,35 +30,39 @@
// Executes the code under test with [Data, Data+Size) as the input.
// libFuzzer will invoke this function *many* times with different inputs.
// Must return 0.
-int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
+__attribute__((visibility("default"))) int
+LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
// Optional user-provided initialization function.
// If provided, this function will be called by libFuzzer once at startup.
// It may read and modify argc/argv.
// Must return 0.
-int LLVMFuzzerInitialize(int *argc, char ***argv);
+__attribute__((visibility("default"))) int LLVMFuzzerInitialize(int *argc,
+ char ***argv);
// Optional user-provided custom mutator.
// Mutates raw data in [Data, Data+Size) inplace.
// Returns the new size, which is not greater than MaxSize.
// Given the same Seed produces the same mutation.
-size_t LLVMFuzzerCustomMutator(uint8_t *Data, size_t Size, size_t MaxSize,
- unsigned int Seed);
+__attribute__((visibility("default"))) size_t
+LLVMFuzzerCustomMutator(uint8_t *Data, size_t Size, size_t MaxSize,
+ unsigned int Seed);
// Optional user-provided custom cross-over function.
// Combines pieces of Data1 & Data2 together into Out.
// Returns the new size, which is not greater than MaxOutSize.
// Should produce the same mutation given the same Seed.
-size_t LLVMFuzzerCustomCrossOver(const uint8_t *Data1, size_t Size1,
- const uint8_t *Data2, size_t Size2,
- uint8_t *Out, size_t MaxOutSize,
- unsigned int Seed);
+__attribute__((visibility("default"))) size_t
+LLVMFuzzerCustomCrossOver(const uint8_t *Data1, size_t Size1,
+ const uint8_t *Data2, size_t Size2, uint8_t *Out,
+ size_t MaxOutSize, unsigned int Seed);
// Experimental, may go away in future.
// libFuzzer-provided function to be used inside LLVMFuzzerCustomMutator.
// Mutates raw data in [Data, Data+Size) inplace.
// Returns the new size, which is not greater than MaxSize.
-size_t LLVMFuzzerMutate(uint8_t *Data, size_t Size, size_t MaxSize);
+__attribute__((visibility("default"))) size_t
+LLVMFuzzerMutate(uint8_t *Data, size_t Size, size_t MaxSize);
#ifdef __cplusplus
} // extern "C"
