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-rw-r--r--CMakeLists.txt19
-rw-r--r--cmake/modules/AddLLVM.cmake35
2 files changed, 52 insertions, 2 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d08fd67ddaf..cdeaf4ac706 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -823,6 +823,25 @@ endif()
include(AddLLVM)
include(TableGen)
+
+# Find all subprojects which are either enabled in a side-by-side layout, or
+# cloned into a non-side-by-side layout. Do this before adding any
+# subdirectories so that any project can check for the existence of any other
+# project. Each call takes priority over the next call, so any project which
+# is enabled via LLVM_ENABLE_PROJECTS will not have its location or enabled
+# status overwritten via a subsequent call.
+
+# First look for all projects explicitly enabled at the root.
+find_llvm_enabled_projects("${LLVM_SOURCE_DIR}/.." "${LLVM_ENABLE_PROJECTS}")
+
+# Then pick up any projects explicitly cloned into llvm/projects or llvm/runtimes
+find_llvm_enabled_projects("${LLVM_SOURCE_DIR}/runtimes")
+find_llvm_enabled_projects("${LLVM_SOURCE_DIR}/projects")
+
+# Then pick up a few specific projects which can be explicit cloned into llvm/tools
+find_llvm_enabled_projects("${LLVM_SOURCE_DIR}/tools" "clang;lldb;lld")
+
+
if( MINGW )
# People report that -O3 is unreliable on MinGW. The traditional
# build also uses -O2 for that reason:
diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index 66abb2486d9..a23bb263038 100644
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -687,7 +687,7 @@ macro(add_llvm_executable name)
# it forces Xcode to properly link the static library.
list(APPEND ALL_FILES "${LLVM_MAIN_SRC_DIR}/cmake/dummy.cpp")
endif()
-
+
if( EXCLUDE_FROM_ALL )
add_executable(${name} EXCLUDE_FROM_ALL ${ALL_FILES})
else()
@@ -920,6 +920,37 @@ function(canonicalize_tool_name name output)
set(${output} "${nameUPPER}" PARENT_SCOPE)
endfunction(canonicalize_tool_name)
+macro(find_llvm_enabled_projects base_dir)
+ set(specific_project_list "${ARGN}")
+ if("${specific_project_list}" STREQUAL "")
+ file(GLOB entries "${base_dir}/*")
+ set(list_of_project_dirs "")
+ foreach(entry ${entries})
+ if(IS_DIRECTORY ${entry} AND EXISTS ${entry}/CMakeLists.txt)
+ get_filename_component(filename "${entry}" NAME)
+ list(APPEND specific_project_list "${filename}")
+ endif()
+ endforeach(entry)
+ endif()
+
+ foreach(proj ${specific_project_list})
+ canonicalize_tool_name(${proj} projUPPER)
+
+ if (${LLVM_PROJECT_${projUPPER}_ENABLED})
+ if (EXISTS "${base_dir}/${proj}")
+ message(WARNING "Project ${projUPPER} in ${base_dir}/${proj} previously found in ${LLVM_PROJECT_${projUPPER}_SOURCE_DIR}")
+ endif()
+ continue()
+ elseif(EXISTS "${LLVM_EXTERNAL_${projUPPER}_SOURCE_DIR}")
+ set(LLVM_PROJECT_${projUPPER}_ENABLED ON)
+ set(LLVM_PROJECT_${projUPPER}_SOURCE_DIR "${LLVM_EXTERNAL_${projUPPER}_SOURCE_DIR}")
+ elseif(EXISTS "${base_dir}/${proj}")
+ set(LLVM_PROJECT_${projUPPER}_ENABLED ON)
+ set(LLVM_PROJECT_${projUPPER}_SOURCE_DIR "${base_dir}/${proj}")
+ endif()
+ endforeach()
+endmacro()
+
# Custom add_subdirectory wrapper
# Takes in a project name (i.e. LLVM), the subdirectory name, and an optional
# path if it differs from the name.
@@ -1350,7 +1381,7 @@ function(add_llvm_tool_symlink link_name target)
# magic. First we grab one of the types, and a type-specific path. Then from
# the type-specific path we find the last occurrence of the type in the path,
# and replace it with CMAKE_CFG_INTDIR. This allows the build step to be type
- # agnostic again.
+ # agnostic again.
if(NOT ARG_OUTPUT_DIR)
# If you're not overriding the OUTPUT_DIR, we can make the link relative in
# the same directory.