[llvm] r241621 - [CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working.

Chris Bieneman beanz at apple.com
Tue Jul 7 13:24:56 PDT 2015


Author: cbieneman
Date: Tue Jul  7 15:24:55 2015
New Revision: 241621

URL: http://llvm.org/viewvc/llvm-project?rev=241621&view=rev
Log:
[CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working.

Summary:
The tools CMakeLists file already had implicit tool registration, but there were a few things off about it that needed to be altered to make it work. This change addresses all that. The changes in this patch are:

* factored out canonicalizing tool names from paths to CMake variables
* removed the LLVM_IMPLICIT_PROJECT_IGNORE mechanism in favor of LLVM_EXTERNAL_${nameUPPER}_BUILD which I renamed to LLVM_TOOL_${nameUPPER}_BUILD because it applies to internal and external tools
* removed ignore_llvm_tool_subdirectory() in favor of just setting LLVM_TOOL_${nameUPPER}_BUILD to Off
* Added create_llvm_tool_options() to resolve a bug in add_llvm_external_project() - the old LLVM_EXTERNAL_${nameUPPER}_BUILD would not work on a clean CMake directory because the option could be created after it was set in code.
* Removed all but the minimum required calls to add_llvm_external_project from tools/CMakeLists.txt

Reviewers: bogner, samsonov, chapuni, beanz

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10665

Modified:
    llvm/trunk/cmake/modules/AddLLVM.cmake
    llvm/trunk/tools/CMakeLists.txt

Modified: llvm/trunk/cmake/modules/AddLLVM.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/modules/AddLLVM.cmake?rev=241621&r1=241620&r2=241621&view=diff
==============================================================================
--- llvm/trunk/cmake/modules/AddLLVM.cmake (original)
+++ llvm/trunk/cmake/modules/AddLLVM.cmake Tue Jul  7 15:24:55 2015
@@ -676,6 +676,13 @@ macro(add_llvm_target target_name)
   set( CURRENT_LLVM_TARGET LLVM${target_name} )
 endmacro(add_llvm_target)
 
+function(canonicalize_tool_name name output)
+  string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}/" "" nameStrip ${name})
+  string(REPLACE "-" "_" nameUNDERSCORE ${nameStrip})
+  string(TOUPPER ${nameUNDERSCORE} nameUPPER)
+  set(${output} "${nameUPPER}" PARENT_SCOPE)
+endfunction(canonicalize_tool_name)
+
 # Add external project that may want to be built as part of llvm such as Clang,
 # lld, and Polly. This adds two options. One for the source directory of the
 # project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to
@@ -686,38 +693,43 @@ macro(add_llvm_external_project name)
   if("${add_llvm_external_dir}" STREQUAL "")
     set(add_llvm_external_dir ${name})
   endif()
-  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}")
-  string(REPLACE "-" "_" nameUNDERSCORE ${name})
-  string(TOUPPER ${nameUNDERSCORE} nameUPPER)
-  set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}"
+  canonicalize_tool_name(${name} nameUPPER)
+  set(LLVM_TOOL_${nameUPPER}_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}"
       CACHE PATH "Path to ${name} source directory")
-  if (NOT ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} STREQUAL ""
-      AND EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}/CMakeLists.txt)
-    option(LLVM_EXTERNAL_${nameUPPER}_BUILD
+  if (NOT ${LLVM_TOOL_${nameUPPER}_SOURCE_DIR} STREQUAL ""
+      AND EXISTS ${LLVM_TOOL_${nameUPPER}_SOURCE_DIR}/CMakeLists.txt)
+    option(LLVM_TOOL_${nameUPPER}_BUILD
            "Whether to build ${name} as part of LLVM" ON)
-    if (LLVM_EXTERNAL_${nameUPPER}_BUILD)
-      add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
+    if (LLVM_TOOL_${nameUPPER}_BUILD)
+      add_subdirectory(${LLVM_TOOL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
+      set(LLVM_TOOL_${nameUPPER}_BUILD Off)
     endif()
   endif()
 endmacro(add_llvm_external_project)
 
 macro(add_llvm_tool_subdirectory name)
-  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${name}")
+  set(LLVM_TOOL_${nameUPPER}_BUILD Off)
   add_subdirectory(${name})
 endmacro(add_llvm_tool_subdirectory)
 
-macro(ignore_llvm_tool_subdirectory name)
-  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${name}")
-endmacro(ignore_llvm_tool_subdirectory)
+function(create_llvm_tool_options)
+  file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
+  foreach(dir ${sub-dirs})
+    if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
+      canonicalize_tool_name(${dir} name)
+      option(LLVM_TOOL_${name}_BUILD
+           "Whether to build ${name} as part of LLVM" On)
+    endif()
+  endforeach()
+endfunction(create_llvm_tool_options)
 
-function(add_llvm_implicit_external_projects)
+function(add_llvm_implicit_projects)
   set(list_of_implicit_subdirs "")
   file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
   foreach(dir ${sub-dirs})
-    if(IS_DIRECTORY "${dir}")
-      list(FIND LLVM_IMPLICIT_PROJECT_IGNORE "${dir}" tool_subdir_ignore)
-      if( tool_subdir_ignore EQUAL -1
-          AND EXISTS "${dir}/CMakeLists.txt")
+    if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
+      canonicalize_tool_name(${dir} name)
+      if (LLVM_TOOL_${name}_BUILD)
         get_filename_component(fn "${dir}" NAME)
         list(APPEND list_of_implicit_subdirs "${fn}")
       endif()
@@ -727,7 +739,7 @@ function(add_llvm_implicit_external_proj
   foreach(external_proj ${list_of_implicit_subdirs})
     add_llvm_external_project("${external_proj}")
   endforeach()
-endfunction(add_llvm_implicit_external_projects)
+endfunction(add_llvm_implicit_projects)
 
 # Generic support for adding a unittest.
 function(add_unittest test_suite test_name)

Modified: llvm/trunk/tools/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/CMakeLists.txt?rev=241621&r1=241620&r2=241621&view=diff
==============================================================================
--- llvm/trunk/tools/CMakeLists.txt (original)
+++ llvm/trunk/tools/CMakeLists.txt Tue Jul  7 15:24:55 2015
@@ -1,85 +1,37 @@
-add_llvm_tool_subdirectory(llvm-config)
+# This file will recurse into all subdirectories that contain CMakeLists.txt
+# Setting variables that match the pattern LLVM_TOOL_{NAME}_BUILD to Off will
+# prevent traversing into a directory.
+#
+# The only tools that need to be explicitly added are ones that have explicit
+# ordering requirements.
+
+# Iterates all the subdirectories to create CMake options to enable/disable
+# traversing each directory.
+create_llvm_tool_options()
 
 # Build polly before the tools: the tools link against polly when
 # LINK_POLLY_INTO_TOOLS is set.
 if(WITH_POLLY)
   add_llvm_external_project(polly)
-else(WITH_POLLY)
-  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${LLVM_MAIN_SRC_DIR}/tools/polly")
-endif(WITH_POLLY)
-
-if( LLVM_BUILD_LLVM_DYLIB )
-  add_llvm_tool_subdirectory(llvm-shlib)
 else()
-  ignore_llvm_tool_subdirectory(llvm-shlib)
+  set(LLVM_TOOL_POLLY_BUILD Off)
 endif()
 
-add_llvm_tool_subdirectory(opt)
-add_llvm_tool_subdirectory(llvm-as)
-add_llvm_tool_subdirectory(llvm-dis)
-add_llvm_tool_subdirectory(llvm-mc)
-
-add_llvm_tool_subdirectory(llc)
-add_llvm_tool_subdirectory(llvm-ar)
-add_llvm_tool_subdirectory(llvm-nm)
-add_llvm_tool_subdirectory(llvm-size)
-
-add_llvm_tool_subdirectory(llvm-cov)
-add_llvm_tool_subdirectory(llvm-profdata)
-add_llvm_tool_subdirectory(llvm-link)
-add_llvm_tool_subdirectory(lli)
-
-add_llvm_tool_subdirectory(llvm-extract)
-add_llvm_tool_subdirectory(llvm-diff)
-add_llvm_tool_subdirectory(macho-dump)
-add_llvm_tool_subdirectory(llvm-objdump)
-add_llvm_tool_subdirectory(llvm-readobj)
-add_llvm_tool_subdirectory(llvm-rtdyld)
-add_llvm_tool_subdirectory(llvm-dwarfdump)
-add_llvm_tool_subdirectory(dsymutil)
-add_llvm_tool_subdirectory(llvm-cxxdump)
-if( LLVM_USE_INTEL_JITEVENTS )
-  add_llvm_tool_subdirectory(llvm-jitlistener)
-else()
-  ignore_llvm_tool_subdirectory(llvm-jitlistener)
-endif( LLVM_USE_INTEL_JITEVENTS )
-
-add_llvm_tool_subdirectory(bugpoint)
-add_llvm_tool_subdirectory(bugpoint-passes)
-add_llvm_tool_subdirectory(llvm-bcanalyzer)
-add_llvm_tool_subdirectory(llvm-stress)
-add_llvm_tool_subdirectory(llvm-mcmarkup)
-
-add_llvm_tool_subdirectory(verify-uselistorder)
-
-add_llvm_tool_subdirectory(llvm-symbolizer)
-
-add_llvm_tool_subdirectory(llvm-c-test)
-
-add_llvm_tool_subdirectory(obj2yaml)
-add_llvm_tool_subdirectory(yaml2obj)
-
-add_llvm_tool_subdirectory(llvm-go)
-
-add_llvm_tool_subdirectory(llvm-pdbdump)
-
-if(NOT CYGWIN AND LLVM_ENABLE_PIC)
-  add_llvm_tool_subdirectory(lto)
-  add_llvm_tool_subdirectory(llvm-lto)
-else()
-  ignore_llvm_tool_subdirectory(lto)
-  ignore_llvm_tool_subdirectory(llvm-lto)
+if(NOT LLVM_BUILD_LLVM_DYLIB )
+  set(LLVM_TOOL_LLVM_SHLIB_BUILD Off)
 endif()
 
-add_llvm_tool_subdirectory(gold)
+if(NOT LLVM_USE_INTEL_JITEVENTS )
+  set(LLVM_TOOL_LLVM_JITLISTENER_BUILD Off)
+endif()
 
-add_llvm_external_project(clang)
-add_llvm_external_project(llgo)
-add_llvm_external_project(lld)
-add_llvm_external_project(lldb)
+if(CYGWIN OR NOT LLVM_ENABLE_PIC)
+  set(LLVM_TOOL_LTO_BUILD Off)
+  set(LLVM_TOOL_LLVM_LTO_BUILD Off)
+endif()
 
 # Automatically add remaining sub-directories containing a 'CMakeLists.txt'
 # file as external projects.
-add_llvm_implicit_external_projects()
+add_llvm_implicit_projects()
 
 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)





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