Ericson2314 updated this revision to Diff 397015.
Ericson2314 added a comment.
Herald added a reviewer: sscalpone.
Herald added a project: Flang.
Oh, Flang and LLD are the same. Just do them now then
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D116521/new/
https://reviews.llvm.org/D116521
Files:
clang/CMakeLists.txt
clang/cmake/modules/CMakeLists.txt
cmake/Modules/FindPrefixFromConfig.cmake
flang/cmake/modules/CMakeLists.txt
lld/cmake/modules/CMakeLists.txt
llvm/CMakeLists.txt
llvm/cmake/modules/CMakeLists.txt
Index: llvm/cmake/modules/CMakeLists.txt
===================================================================
--- llvm/cmake/modules/CMakeLists.txt
+++ llvm/cmake/modules/CMakeLists.txt
@@ -1,4 +1,5 @@
include(LLVMDistributionSupport)
+include(FindPrefixFromConfig)
set(LLVM_INSTALL_PACKAGE_DIR lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm)
set(llvm_cmake_builddir "${LLVM_BINARY_DIR}/${LLVM_INSTALL_PACKAGE_DIR}")
@@ -99,16 +100,7 @@
)
# Generate LLVMConfig.cmake for the install tree.
-set(LLVM_CONFIG_CODE "
-# Compute the installation prefix from this LLVMConfig.cmake file location.
-get_filename_component(LLVM_INSTALL_PREFIX \"\${CMAKE_CURRENT_LIST_FILE}\" PATH)")
-# Construct the proper number of get_filename_component(... PATH)
-# calls to compute the installation prefix.
-string(REGEX REPLACE "/" ";" _count "${LLVM_INSTALL_PACKAGE_DIR}")
-foreach(p ${_count})
- set(LLVM_CONFIG_CODE "${LLVM_CONFIG_CODE}
-get_filename_component(LLVM_INSTALL_PREFIX \"\${LLVM_INSTALL_PREFIX}\" PATH)")
-endforeach(p)
+find_prefix_from_config(LLVM_CONFIG_CODE LLVM_INSTALL_PREFIX "${LLVM_INSTALL_PACKAGE_DIR}")
set(LLVM_CONFIG_INCLUDE_DIRS "\${LLVM_INSTALL_PREFIX}/include")
set(LLVM_CONFIG_INCLUDE_DIR "${LLVM_CONFIG_INCLUDE_DIRS}")
set(LLVM_CONFIG_MAIN_INCLUDE_DIR "${LLVM_CONFIG_INCLUDE_DIRS}")
Index: llvm/CMakeLists.txt
===================================================================
--- llvm/CMakeLists.txt
+++ llvm/CMakeLists.txt
@@ -196,11 +196,13 @@
set(LLVM_GISEL_COV_PREFIX "${CMAKE_BINARY_DIR}/gisel-coverage-" CACHE STRING "Provide a filename prefix to collect the GlobalISel rule coverage")
endif()
+set(LLVM_COMMON_CMAKE_UTILS ${CMAKE_CURRENT_SOURCE_DIR}/../cmake)
+
# Add path for custom modules
-set(CMAKE_MODULE_PATH
- ${CMAKE_MODULE_PATH}
+list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
+ "${LLVM_COMMON_CMAKE_UTILS}/Modules"
)
# Generate a CompilationDatabase (compile_commands.json file) for our build,
@@ -308,7 +310,6 @@
set(LLVM_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR} ) # --prefix
set(LLVM_THIRD_PARTY_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../third-party)
-set(LLVM_COMMON_CMAKE_UTILS ${CMAKE_CURRENT_SOURCE_DIR}/../cmake)
# Note: LLVM_CMAKE_DIR does not include generated files
set(LLVM_CMAKE_DIR ${LLVM_MAIN_SRC_DIR}/cmake/modules)
Index: lld/cmake/modules/CMakeLists.txt
===================================================================
--- lld/cmake/modules/CMakeLists.txt
+++ lld/cmake/modules/CMakeLists.txt
@@ -29,16 +29,7 @@
set(LLD_CONFIG_LLVM_CMAKE_DIR)
# Generate LLDConfig.cmake for the install tree.
-set(LLD_CONFIG_CODE "
-# Compute the installation prefix from this LLVMConfig.cmake file location.
-get_filename_component(LLD_INSTALL_PREFIX \"\${CMAKE_CURRENT_LIST_FILE}\" PATH)")
-# Construct the proper number of get_filename_component(... PATH)
-# calls to compute the installation prefix.
-string(REGEX REPLACE "/" ";" _count "${LLD_INSTALL_PACKAGE_DIR}")
-foreach(p ${_count})
- set(LLD_CONFIG_CODE "${LLD_CONFIG_CODE}
-get_filename_component(LLD_INSTALL_PREFIX \"\${LLD_INSTALL_PREFIX}\" PATH)")
-endforeach(p)
+find_prefix_from_config(LLD_CONFIG_CODE LLD_INSTALL_PREFIX "${LLD_INSTALL_PACKAGE_DIR}")
set(LLD_CONFIG_CMAKE_DIR "\${LLD_INSTALL_PREFIX}/${LLD_INSTALL_PACKAGE_DIR}")
set(LLD_CONFIG_LLVM_CMAKE_DIR "\${LLD_INSTALL_PREFIX}/${LLVM_INSTALL_PACKAGE_DIR}")
get_config_exports_includes(LLD LLD_CONFIG_INCLUDE_EXPORTS)
Index: flang/cmake/modules/CMakeLists.txt
===================================================================
--- flang/cmake/modules/CMakeLists.txt
+++ flang/cmake/modules/CMakeLists.txt
@@ -29,16 +29,7 @@
set(FLANG_CONFIG_LLVM_CMAKE_DIR)
# Generate FlangConfig.cmake for the install tree.
-set(FLANG_CONFIG_CODE "
- # Compute the installation prefix from this LLVMConfig.cmake file location.
- get_filename_component(FLANG_INSTALL_PREFIX \"\${CMAKE_CURRENT_LIST_FILE}\" PATH)")
-# Construct the proper number of get_filename_component(... PATH)
-# calls to compute the installation prefix.
-string(REGEX REPLACE "/" ";" _count "${FLANG_INSTALL_PACKAGE_DIR}")
-foreach(p ${_count})
- set(FLANG_CONFIG_CODE "${FLANG_CONFIG_CODE}
- get_filename_component(FLANG_INSTALL_PREFIX \"\${FLANG_INSTALL_PREFIX}\" PATH)")
-endforeach(p)
+find_prefix_from_config(FLANG_CONFIG_CODE FLANG_INSTALL_PREFIX "${FLANG_INSTALL_PACKAGE_DIR}")
set(FLANG_CONFIG_CMAKE_DIR "\${FLANG_INSTALL_PREFIX}/${FLANG_INSTALL_PACKAGE_DIR}")
set(FLANG_CONFIG_LLVM_CMAKE_DIR "\${FLANG_INSTALL_PREFIX}/${LLVM_INSTALL_PACKAGE_DIR}")
Index: cmake/Modules/FindPrefixFromConfig.cmake
===================================================================
--- /dev/null
+++ cmake/Modules/FindPrefixFromConfig.cmake
@@ -0,0 +1,41 @@
+# Find the prefix from the `*Config.cmake` file being generated.
+#
+# When generating an installed `*Config.cmake` file, we often want to be able
+# to refer to the ancestor directory which contains all the installed files.
+#
+# We want to do this without baking in an absolute path when the config file is
+# generated, in order to allow for a "relocatable" binary distribution that
+# doesn't need to know what path it ends up being installed at when it is
+# built.
+#
+# The solution that we know the relative path that the config file will be at
+# within that prefix, like `"${prefix_var}/lib/cmake/${project}"`, so we count
+# the number of components in that path to figure out how many parent dirs we
+# need to traverse from the location of the config file to get to the prefix
+# dir.
+#
+# out_var:
+# variable to set the "return value" of the function, which is the code to
+# include in the config file under construction.
+#
+# prefix_var:
+# Name of the variable to define in the returned code (not directory for the
+# faller!) that will contain the prefix path.
+#
+# path_to_leave:
+# Path from the prefix to the config file, a relative path which we wish to
+# go up and out from to find the prefix directory.
+function(find_prefix_from_config out_var prefix_var path_to_leave)
+ set(config_code
+ "# Compute the installation prefix from this LLVMConfig.cmake file location."
+ "get_filename_component(${prefix_var} \"\${CMAKE_CURRENT_LIST_FILE}\" PATH)")
+ # Construct the proper number of get_filename_component(... PATH)
+ # calls to compute the installation prefix.
+ string(REGEX REPLACE "/" ";" _count "${path_to_leave}")
+ foreach(p ${_count})
+ list(APPEND config_code
+ "get_filename_component(${prefix_var} \"\${${prefix_var}}\" PATH)")
+ endforeach(p)
+ string(REPLACE ";" "\n" config_code "${config_code}")
+ set("${out_var}" "${config_code}" PARENT_SCOPE)
+endfunction()
Index: clang/cmake/modules/CMakeLists.txt
===================================================================
--- clang/cmake/modules/CMakeLists.txt
+++ clang/cmake/modules/CMakeLists.txt
@@ -1,4 +1,5 @@
include(LLVMDistributionSupport)
+include(FindPrefixFromConfig)
# Generate a list of CMake library targets so that other CMake projects can
# link against them. LLVM calls its version of this file LLVMExports.cmake, but
@@ -29,16 +30,7 @@
set(CLANG_CONFIG_LLVM_CMAKE_DIR)
# Generate ClangConfig.cmake for the install tree.
-set(CLANG_CONFIG_CODE "
-# Compute the installation prefix from this LLVMConfig.cmake file location.
-get_filename_component(CLANG_INSTALL_PREFIX \"\${CMAKE_CURRENT_LIST_FILE}\" PATH)")
-# Construct the proper number of get_filename_component(... PATH)
-# calls to compute the installation prefix.
-string(REGEX REPLACE "/" ";" _count "${CLANG_INSTALL_PACKAGE_DIR}")
-foreach(p ${_count})
- set(CLANG_CONFIG_CODE "${CLANG_CONFIG_CODE}
-get_filename_component(CLANG_INSTALL_PREFIX \"\${CLANG_INSTALL_PREFIX}\" PATH)")
-endforeach(p)
+find_prefix_from_config(CLANG_CONFIG_CODE CLANG_INSTALL_PREFIX "${CLANG_INSTALL_PACKAGE_DIR}")
set(CLANG_CONFIG_CMAKE_DIR "\${CLANG_INSTALL_PREFIX}/${CLANG_INSTALL_PACKAGE_DIR}")
set(CLANG_CONFIG_LLVM_CMAKE_DIR "\${CLANG_INSTALL_PREFIX}/${LLVM_INSTALL_PACKAGE_DIR}")
get_config_exports_includes(Clang CLANG_CONFIG_INCLUDE_EXPORTS)
Index: clang/CMakeLists.txt
===================================================================
--- clang/CMakeLists.txt
+++ clang/CMakeLists.txt
@@ -190,9 +190,16 @@
set(BACKEND_PACKAGE_STRING "${PACKAGE_STRING}")
endif()
+if(NOT DEFINED LLVM_COMMON_CMAKE_UTILS)
+ set(LLVM_COMMON_CMAKE_UTILS ${CMAKE_CURRENT_SOURCE_DIR}/../cmake)
+endif()
+
# Make sure that our source directory is on the current cmake module path so that
# we can include cmake files from this directory.
-list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
+list(INSERT CMAKE_MODULE_PATH 0
+ "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
+ "${LLVM_COMMON_CMAKE_UTILS}/Modules"
+ )
if(LLVM_ENABLE_LIBXML2)
# Don't look for libxml if we're using MSan, since uninstrumented third party
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