hintonda created this revision. hintonda added reviewers: compnerd, beanz. Herald added a subscriber: mgorny.
If CMAKE_ASM_COMPILER is set, cmake assumes CMAKE_ASM_COMPILER_ID was also set, and doesn't try to set it. Without CMAKE_ASM_COMPILER_ID, cmake can't set CMAKE_ASM_COMPILER_OPTIONS_TARGET either, which means CMAKE_ASM_COMPILER_TARGET is ignored, causing cross compiling to fail, i.e., `--target=${CMAKE_ASM_COMPILER_TARGET}` isn't passed. Repository: rC Clang https://reviews.llvm.org/D42232 Files: CMakeLists.txt Index: CMakeLists.txt =================================================================== --- CMakeLists.txt +++ CMakeLists.txt @@ -624,7 +624,8 @@ set(COMPILER_OPTIONS -DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${CXX_COMPILER} -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER} - -DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}) + -DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER} + -DCMAKE_ASM_COMPILER_ID=Clang) if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED) add_dependencies(clang-bootstrap-deps llvm-profdata)
Index: CMakeLists.txt =================================================================== --- CMakeLists.txt +++ CMakeLists.txt @@ -624,7 +624,8 @@ set(COMPILER_OPTIONS -DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${CXX_COMPILER} -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER} - -DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER}) + -DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/${C_COMPILER} + -DCMAKE_ASM_COMPILER_ID=Clang) if(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED) add_dependencies(clang-bootstrap-deps llvm-profdata)
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