search for: dcompiler_rt_default_target_arch

This is currently a rough area in our build system, but there are two CMake options you probably need to set. (1) -DLLVM_BUILD_EXTERNAL_COMPILER_RT=On —> This option causes the build to use the just-built clang when building compiler-rt (2) -DCOMPILER_RT_DEFAULT_TARGET_ARCH=??? —> This is where you specify which architecture you want to build the compiler-rt archives and libraries for Hopefully in the near future we’ll have a better story for building this functionality. Hope this helps, -Chris > On May 3, 2016, at 12:09 AM, 李阳 via llvm-dev <llvm-dev at l...

> On Aug 26, 2016, at 3:22 PM, Renato Golin <renato.golin at linaro.org> wrote: > > On 26 August 2016 at 22:45, Chris Bieneman via llvm-dev > <llvm-dev at lists.llvm.org> wrote: >> Recently, I’ve made a handful of new changes that actually make it useful, and I wanted to blast out this update and encourage people to give it a try. > > Woot! Compiling RT as we

...cn> wrote: > > I finally solved my problem. Chris's suggestion helps much, but there are still a few problems to build cross platform compiler-rt. > -DLLVM_BUILD_EXTERNAL_COMPILER_RT=On -> This is valid and required to force compiler-rt to be built by the just-built clang. > -DCOMPILER_RT_DEFAULT_TARGET_ARCH= -> This does not work, but -DCOMPILER_RT_DEFAULT_TARGET_TRIPLE works. > While using there two additional options, I still got errors. The build system successfully configured and built clang/LLVM but failed to configure compiler-rt due to the clang checking in compiler-rt's Cmake system....

Hi. I'm trying to use Clang/LLVM as a cross-compiling toolchain. In previous version of LLVM with the old configure/Makefile building system, I'm able to build Clang/LLVM for target architecture with the host GCC firstly and then use the generated cross compiler to compile the compiler-rt project, and, consequently, I can get a cross compiler as well as the compiler-rt library. However,