MaskRay added inline comments.
================
Comment at: clang/CMakeLists.txt:930-937
+ -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
+ -DCMAKE_C_COMPILER=${CLANG_INSTRUMENTED}
+ -DCMAKE_CXX_COMPILER=${CLANGXX_INSTRUMENTED}
+ -DCMAKE_ASM_COMPILER=${CLANG_INSTRUMENTED}
+ -DCMAKE_ASM_COMPILER_ID=Clang
+ -DCMAKE_BUILD_TYPE=Release
+ -DLLVM_ENABLE_PROJECTS=${CLANG_BOLT_INSTRUMENT_PROJECTS}
----------------
phosek wrote:
> I don't think this is sufficient in the general case, we would need to pass
> additional variables like `CMAKE_AR` the same way we do for the existing
> bootstrap logic, see
> https://github.com/llvm/llvm-project/blob/dc549bf0013e11e8fcccba8a8d59c3a4bb052a3b/clang/CMakeLists.txt#L825.
>
> For example, on Fuchsia builders we don't have any system-wide toolchain
> installation, instead we manually set all necessary `CMAKE_<TOOL>` variables
> for the first stage, so this call will fail for us because it won't be able
> to find tools like the archiver.
>
> Since handling this properly would likely duplicate a lot of the existing
> logic from the existing bootstrap logic, I'm wondering if we should instead
> try to refactor the existing logic and break it up into macros/functions
> which could then be reused here as well.
Supporting other cmake variables will be awesome. I use something like
`-DCMAKE_CXX_ARCHIVE_CREATE="$HOME/llvm/out/stable/bin/llvm-ar qcS --thin
<TARGET> <OBJECTS>" -DCMAKE_CXX_ARCHIVE_FINISH=:` to make my build smaller.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D132975/new/
https://reviews.llvm.org/D132975
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