phosek 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}
----------------
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.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D132975/new/
https://reviews.llvm.org/D132975
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