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lld: copy unwind only when building from source #210

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lld: copy unwind only when building from source #210

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6 changes: 0 additions & 6 deletions external/llvm/llvm_deps.cmake
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Expand Up @@ -44,12 +44,6 @@ include(llvm_spirv_source_hook)
# LLD source hook.
if(IGC_OPTION__LLVM_LLD)
include(llvm_lld_source_hook)
if(NOT EXISTS "${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o" AND ${IGC_OPTION__LLVM_PREFERRED_VERSION} GREATER_EQUAL "12.0.0")
# Need to copy one header from unwind package for LLD (only for building from sources)
file(MAKE_DIRECTORY ${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o)
file(COPY ${DEFAULT_IGC_LLVM_SOURCES_DIR}/libunwind/include/mach-o/compact_unwind_encoding.h
DESTINATION ${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o/)
endif()
endif()

# Process LLVM.
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7 changes: 7 additions & 0 deletions external/llvm/llvm_lld_source_hook.cmake
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Expand Up @@ -47,5 +47,12 @@ if(NOT EXISTS "${IGC_COPIED_LLD_DIR}")
execute_process(COMMAND ${CMAKE_COMMAND} -E copy_directory ${IGC_OPTION__lld_SOURCES_DIR} ${IGC_COPIED_LLD_DIR})
endif()

if(NOT EXISTS "${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o" AND ${IGC_OPTION__LLVM_PREFERRED_VERSION} GREATER_EQUAL "12.0.0")
# Need to copy one header from unwind package for LLD (only for building from sources)
file(MAKE_DIRECTORY ${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o)
file(COPY ${DEFAULT_IGC_LLVM_SOURCES_DIR}/libunwind/include/mach-o/compact_unwind_encoding.h
DESTINATION ${IGC_LLVM_WORKSPACE_SRC}/libunwind/include/mach-o/)
endif()

# Just register lld as external llvm project.
register_llvm_external_project(lld ${IGC_COPIED_LLD_DIR})