Hi,
I am trying to use the dataflow sanitizer with the address sanitizer, but
they clash together giving me a long sequence of errors due to multiple
definitions in both sanitizers:
clang-llvm/ninja-build-clang/lib/clang/5.0.0/lib/linux/libclang_rt.dfsan-x86_64.a(interception_linux.cc.o):
In function `__interception::GetRealFunctionAddress(char const*, \
unsigned long*, unsigned long, unsigned long)':
clang-llvm/llvm/projects/compiler-rt/lib/interception/interception_linux.cc:22:
multiple definition of `__interception::GetRealFunctionAddress(char const*,
unsigned long*, u\
nsigned long, unsigned long)'
clang-llvm/ninja-build-clang/lib/clang/5.0.0/lib/linux/libclang_rt.asan-x86_64.a(interception_linux.cc.o):clang-llvm/llvm/projects/compiler-rt/
\
lib/interception/interception_linux.cc:22: first defined here
clang-llvm/ninja-build-clang/lib/clang/5.0.0/lib/linux/libclang_rt.dfsan-x86_64.a(interception_linux.cc.o):
In function `__interception::GetFuncAddrVer(char const*, char con\
st*)':
clang-llvm/llvm/projects/compiler-rt/lib/interception/interception_linux.cc:28:
multiple definition of `__interception::GetFuncAddrVer(char const*, char
const*)'
clang-llvm/ninja-build-clang/lib/clang/5.0.0/lib/linux/libclang_rt.asan-x86_64.a(interception_linux.cc.o):clang-llvm/llvm/projects/compiler-rt/
\
lib/interception/interception_linux.cc:28: first defined here
clang-llvm/ninja-build-clang/lib/clang/5.0.0/lib/linux/libclang_rt.dfsan-x86_64.a(sanitizer_allocator.cc.o):
In function `atomic_load<__sanitizer::atomic_uint8_t>':
clang-llvm/llvm/projects/compiler-rt/lib/sanitizer_common/sanitizer_atomic_clang_x86.h:47:
multiple definition of `__sanitizer::internal_allocator()'
clang-llvm/ninja-build-clang/lib/clang/5.0.0/lib/linux/libclang_rt.asan-x86_64.a(sanitizer_allocator.cc.o):clang-llvm/llvm/projects/compiler-rt
\
/lib/sanitizer_common/sanitizer_atomic_clang_x86.h:47: first defined here
clang-llvm/ninja-build-clang/lib/clang/5.0.0/lib/linux/libclang_rt.dfsan-x86_64.a(sanitizer_allocator.cc.o):
In function `__sanitizer::LowLevelAllocator::Allocate(unsigned l\
ong)':
The simplest stripped example is compiling any cpp file for example:
// simple.cc
int main() {
return 0;
}
with the command:
clang++ simple.cc -fsanitize=address,dataflow
Thanks,
Farah
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