jlebar added a comment.
Although these pass the CUDA test-suite tests (which I haven't yet committed
because they're broken without this change), I could use some help running the
libcxx tests.
I cannot find any documentation explaining how to run the libcxx tests with
just-built clang. Presumably this is supported and I just cannot figure it
out. Anyway I figured I'd try to make a new objdir and point it to my
just-built clang.
$ mkdir objdir-libcxx
$ cd objdir-libcxx
$ cmake -G "Ninja" -DCMAKE_BUILD_TYPE=Release
-DCMAKE_C_COMPILER=$HOME/llvm/release/bin/clang
-DCMAKE_CXX_COMPILER=$HOME/llvm/release/bin/clang -DLLVM_ENABLE_ASSERTIONS=On
../llvm
This also doesn't work. Building one of cmake's atomic tests fails with linker
errors.
Run Build Command:"/usr/local/google/home/jlebar/bin/ninja" "cmTC_0c40a"
[1/2] Building CXX object CMakeFiles/cmTC_0c40a.dir/src.cxx.o
[2/2] Linking CXX executable cmTC_0c40a
FAILED: cmTC_0c40a
: && /usr/local/google/home/jlebar/llvm/release/bin/clang
-DHAVE_CXX_ATOMICS_WITH_LIB -std=c++11 CMakeFiles/cmTC_0c40a.dir/src.cxx.o
-o cmTC_0c40a -lm -latomic && :
CMakeFiles/cmTC_0c40a.dir/src.cxx.o:src.cxx:function __clang_call_terminate:
error: undefined reference to '__cxa_begin_catch'
CMakeFiles/cmTC_0c40a.dir/src.cxx.o:src.cxx:function __clang_call_terminate:
error: undefined reference to 'std::terminate()'
CMakeFiles/cmTC_0c40a.dir/src.cxx.o(.eh_frame+0x143): error: undefined
reference to '__gxx_personality_v0'
clang-4.0: error: linker command failed with exit code 1 (use -v to see
invocation)
ninja: build stopped: subcommand failed.
Source file was:
#include <atomic>
std::atomic<int> x;
int main() {
return x;
}
I presume there is some Right Way to do this, and I'm just not doing it.
https://reviews.llvm.org/D25403
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