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cmake: check llvm-config in separate function

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Eric Joldasov 2022-12-22 19:12:10 +06:00 committed by Andrew Kelley
parent aea3460cf5
commit 55c3efcb58
1 changed files with 49 additions and 47 deletions
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92
cmake/Findllvm.cmake
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@ -8,27 +8,9 @@
# LLVM_LIBDIRS # LLVM_LIBDIRS
# LLVM_LINK_MODE # LLVM_LINK_MODE
function(check_llvm_config LLVM_CONFIG_EXE)
if(ZIG_USE_LLVM_CONFIG) # Start with empty message for current llvm-config
set(LLVM_CONFIG_ERROR_MESSAGES "") set(LLVM_CONFIG_ERROR_MESSAGES "" PARENT_SCOPE)
while(1)
unset(LLVM_CONFIG_EXE CACHE)
find_program(LLVM_CONFIG_EXE
NAMES llvm-config-15 llvm-config-15.0 llvm-config150 llvm-config15 llvm-config NAMES_PER_DIR
PATHS
"/mingw64/bin"
"/c/msys64/mingw64/bin"
"c:/msys64/mingw64/bin"
"C:/Libraries/llvm-15.0.0/bin")
if ("${LLVM_CONFIG_EXE}" STREQUAL "LLVM_CONFIG_EXE-NOTFOUND")
if (NOT LLVM_CONFIG_ERROR_MESSAGES STREQUAL "")
list(JOIN LLVM_CONFIG_ERROR_MESSAGES "\n" LLVM_CONFIG_ERROR_MESSAGE)
message(FATAL_ERROR ${LLVM_CONFIG_ERROR_MESSAGE})
else()
message(FATAL_ERROR "unable to find llvm-config")
endif()
endif()
# Check that this LLVM is the right version # Check that this LLVM is the right version
execute_process( execute_process(
@ -36,14 +18,10 @@ if(ZIG_USE_LLVM_CONFIG)
OUTPUT_VARIABLE LLVM_CONFIG_VERSION OUTPUT_VARIABLE LLVM_CONFIG_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE) OUTPUT_STRIP_TRAILING_WHITESPACE)
get_filename_component(LLVM_CONFIG_DIR "${LLVM_CONFIG_EXE}" DIRECTORY) if("${LLVM_CONFIG_VERSION}" VERSION_LESS 15 OR "${LLVM_CONFIG_VERSION}" VERSION_GREATER_EQUAL 16)
if("${LLVM_CONFIG_VERSION}" VERSION_LESS 15 OR "${LLVM_CONFIG_VERSION}" VERSION_EQUAL 16 OR "${LLVM_CONFIG_VERSION}" VERSION_GREATER 16) # Save the error message for current llvm-config we find
# Save the error message, in case this is the last llvm-config we find set(LLVM_CONFIG_ERROR_MESSAGES "Expected LLVM 15.x but found ${LLVM_CONFIG_VERSION}" PARENT_SCOPE)
list(APPEND LLVM_CONFIG_ERROR_MESSAGES "expected LLVM 15.x but found ${LLVM_CONFIG_VERSION} using ${LLVM_CONFIG_EXE}") return()
# Ignore this directory and try the search again
list(APPEND CMAKE_IGNORE_PATH "${LLVM_CONFIG_DIR}")
continue()
endif() endif()
# Check that this LLVM supports linking as a shared/static library, if requested # Check that this LLVM supports linking as a shared/static library, if requested
@ -61,16 +39,12 @@ if(ZIG_USE_LLVM_CONFIG)
ERROR_STRIP_TRAILING_WHITESPACE) ERROR_STRIP_TRAILING_WHITESPACE)
if (LLVM_CONFIG_ERROR) if (LLVM_CONFIG_ERROR)
# Save the error message, in case this is the last llvm-config we find
if (ZIG_SHARED_LLVM) if (ZIG_SHARED_LLVM)
list(APPEND LLVM_CONFIG_ERROR_MESSAGES "LLVM 15.x found at ${LLVM_CONFIG_EXE} does not support linking as a shared library") set(LLVM_CONFIG_ERROR_MESSAGES "This LLVM does not support linking as a shared library" PARENT_SCOPE)
else() else()
list(APPEND LLVM_CONFIG_ERROR_MESSAGES "LLVM 15.x found at ${LLVM_CONFIG_EXE} does not support linking as a static library") set(LLVM_CONFIG_ERROR_MESSAGES "This LLVM does not support linking as a static library" PARENT_SCOPE)
endif() endif()
return()
# Ignore this directory and try the search again
list(APPEND CMAKE_IGNORE_PATH "${LLVM_CONFIG_DIR}")
continue()
endif() endif()
endif() endif()
@ -79,17 +53,15 @@ if(ZIG_USE_LLVM_CONFIG)
OUTPUT_VARIABLE LLVM_TARGETS_BUILT_SPACES OUTPUT_VARIABLE LLVM_TARGETS_BUILT_SPACES
OUTPUT_STRIP_TRAILING_WHITESPACE) OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE " " ";" LLVM_TARGETS_BUILT "${LLVM_TARGETS_BUILT_SPACES}") string(REPLACE " " ";" LLVM_TARGETS_BUILT "${LLVM_TARGETS_BUILT_SPACES}")
function(NEED_TARGET TARGET_NAME)
macro(NEED_TARGET TARGET_NAME)
list (FIND LLVM_TARGETS_BUILT "${TARGET_NAME}" _index) list (FIND LLVM_TARGETS_BUILT "${TARGET_NAME}" _index)
if (${_index} EQUAL -1) if (${_index} EQUAL -1)
# Save the error message, in case this is the last llvm-config we find set(LLVM_CONFIG_ERROR_MESSAGES "This LLVM is missing target ${TARGET_NAME}. Zig requires LLVM to be built with all default targets enabled." PARENT_SCOPE)
list(APPEND LLVM_CONFIG_ERROR_MESSAGES "LLVM (according to ${LLVM_CONFIG_EXE}) is missing target ${TARGET_NAME}. Zig requires LLVM to be built with all default targets enabled.") return()
# Ignore this directory and try the search again
list(APPEND CMAKE_IGNORE_PATH "${LLVM_CONFIG_DIR}")
continue()
endif() endif()
endfunction(NEED_TARGET) endmacro()
NEED_TARGET("AArch64") NEED_TARGET("AArch64")
NEED_TARGET("AMDGPU") NEED_TARGET("AMDGPU")
NEED_TARGET("ARM") NEED_TARGET("ARM")
@ -108,9 +80,39 @@ if(ZIG_USE_LLVM_CONFIG)
NEED_TARGET("WebAssembly") NEED_TARGET("WebAssembly")
NEED_TARGET("X86") NEED_TARGET("X86")
NEED_TARGET("XCore") NEED_TARGET("XCore")
endfunction()
# Got it! if(ZIG_USE_LLVM_CONFIG)
while(1)
unset(LLVM_CONFIG_EXE CACHE)
find_program(LLVM_CONFIG_EXE
NAMES llvm-config-15 llvm-config-15.0 llvm-config150 llvm-config15 llvm-config NAMES_PER_DIR
PATHS
"/mingw64/bin"
"/c/msys64/mingw64/bin"
"c:/msys64/mingw64/bin"
"C:/Libraries/llvm-15.0.0/bin")
if("${LLVM_CONFIG_EXE}" STREQUAL "LLVM_CONFIG_EXE-NOTFOUND")
message(FATAL_ERROR "Suitable llvm-config is not found.")
endif()
message("Trying ${LLVM_CONFIG_EXE}...")
check_llvm_config(${LLVM_CONFIG_EXE})
if(LLVM_CONFIG_ERROR_MESSAGES STREQUAL "")
message("This llvm-config is suitable for us, continuing...")
break() break()
else()
message("This llvm-config is not suitable for us:")
list(JOIN LLVM_CONFIG_ERROR_MESSAGES "\n" LLVM_CONFIG_ERROR_MESSAGE)
message(${LLVM_CONFIG_ERROR_MESSAGE})
message("Trying another llvm-config...")
get_filename_component(LLVM_CONFIG_DIR "${LLVM_CONFIG_EXE}" DIRECTORY)
list(APPEND CMAKE_IGNORE_PATH "${LLVM_CONFIG_DIR}")
endif()
endwhile() endwhile()
if(ZIG_SHARED_LLVM OR ZIG_STATIC_LLVM) if(ZIG_SHARED_LLVM OR ZIG_STATIC_LLVM)