6641f8da73
Summary: Currently AMDGPU only barely supports cross-TU ELF linking. Full linking is usually done via LTO. This requires passing the architecture to the link job. This is done automatically via `-flto` since D144505. Add this to the link options.
20 lines
671 B
CMake
20 lines
671 B
CMake
add_startup_object(
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crt1
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SRC
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start.cpp
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COMPILE_OPTIONS
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-ffreestanding # To avoid compiler warnings about calling the main function.
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-fno-builtin
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-nogpulib # Do not include any GPU vendor libraries.
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-nostdinc
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-mcpu=${LIBC_GPU_TARGET_ARCHITECTURE}
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-emit-llvm # AMDGPU's intermediate object file format is bitcode.
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--target=${LIBC_GPU_TARGET_TRIPLE}
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NO_GPU_BUNDLE # Compile this file directly without special GPU handling.
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)
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get_fq_target_name(crt1 fq_name)
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# Ensure that clang uses the correct linker for this object type.
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target_link_libraries(${fq_name} PUBLIC
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"--target=${LIBC_GPU_TARGET_TRIPLE}" "-flto")
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