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| author | Fraser Cormack <fraser@codeplay.com> | 2024-04-16 16:46:37 +0100 |
|---|---|---|
| committer | Fraser Cormack <fraser@codeplay.com> | 2024-04-18 07:01:13 +0100 |
| commit | 0aeeff3059e79b86f55ed92a4488bdee8fa66e12 (patch) | |
| tree | 3b0306a0df5cac5c2bfd3367dfa1586c9406579f /libclc | |
| parent | 93d51194b1df8229268953ec94063fc4194a320b (diff) | |
| download | llvm-0aeeff3059e79b86f55ed92a4488bdee8fa66e12.zip llvm-0aeeff3059e79b86f55ed92a4488bdee8fa66e12.tar.gz llvm-0aeeff3059e79b86f55ed92a4488bdee8fa66e12.tar.bz2 | |
[libclc] Allow building with pre-built tools
Building the libclc project in-tree with debug tools can be very slow.
This commit adds an option for a user to specify a dierctory from which
to import (e.g., release-built) tools. All tools required by the project
must be imported from the same location, for simplicity.
Original patch downstream authored by @jchlanda.
Diffstat (limited to 'libclc')
| -rw-r--r-- | libclc/CMakeLists.txt | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/libclc/CMakeLists.txt b/libclc/CMakeLists.txt index 4442ff6..b0c29ed 100644 --- a/libclc/CMakeLists.txt +++ b/libclc/CMakeLists.txt @@ -50,11 +50,13 @@ if( LIBCLC_STANDALONE_BUILD OR CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DI endif() # Import required tools as targets - foreach( tool IN ITEMS clang llvm-as llvm-link opt ) - find_program( LLVM_TOOL_${tool} ${tool} PATHS ${LLVM_TOOLS_BINARY_DIR} NO_DEFAULT_PATH ) - add_executable( libclc::${tool} IMPORTED GLOBAL ) - set_target_properties( libclc::${tool} PROPERTIES IMPORTED_LOCATION ${LLVM_TOOL_${tool}} ) - endforeach() + if( NOT EXISTS ${LIBCLC_CUSTOM_LLVM_TOOLS_BINARY_DIR} ) + foreach( tool IN ITEMS clang llvm-as llvm-link opt ) + find_program( LLVM_TOOL_${tool} ${tool} PATHS ${LLVM_TOOLS_BINARY_DIR} NO_DEFAULT_PATH ) + add_executable( libclc::${tool} IMPORTED GLOBAL ) + set_target_properties( libclc::${tool} PROPERTIES IMPORTED_LOCATION ${LLVM_TOOL_${tool}} ) + endforeach() + endif() else() # In-tree configuration set( LIBCLC_STANDALONE_BUILD FALSE ) @@ -68,8 +70,27 @@ else() message(FATAL_ERROR "Clang is not enabled, but is required to build libclc in-tree") endif() + if( NOT EXISTS ${LIBCLC_CUSTOM_LLVM_TOOLS_BINARY_DIR} ) + foreach( tool IN ITEMS clang llvm-as llvm-link opt ) + add_executable(libclc::${tool} ALIAS ${tool}) + endforeach() + endif() +endif() + +if( EXISTS ${LIBCLC_CUSTOM_LLVM_TOOLS_BINARY_DIR} ) + message( WARNING "Using custom LLVM tools to build libclc: " + "${LIBCLC_CUSTOM_LLVM_TOOLS_BINARY_DIR}, " + " ensure the tools are up to date." ) + # Note - use a differently named variable than LLVM_TOOL_${tool} as above, as + # the variable name is used to cache the result of find_program. If we used + # the same name, a user wouldn't be able to switch a build between default + # and custom tools. foreach( tool IN ITEMS clang llvm-as llvm-link opt ) - add_executable(libclc::${tool} ALIAS ${tool}) + find_program( LLVM_CUSTOM_TOOL_${tool} ${tool} + PATHS ${LIBCLC_CUSTOM_LLVM_TOOLS_BINARY_DIR} NO_DEFAULT_PATH ) + add_executable( libclc::${tool} IMPORTED GLOBAL ) + set_target_properties( libclc::${tool} PROPERTIES + IMPORTED_LOCATION ${LLVM_CUSTOM_TOOL_${tool}} ) endforeach() endif() |