[llvm] Add stripped installation targets

CMake's generated installation scripts support `CMAKE_INSTALL_DO_STRIP`
to enable stripping the installed binaries. LLVM's build system doesn't
expose this option to the `install-` targets, but it's useful in
conjunction with `install-distribution`.

Add a new function to create the install targets, which creates both the
regular install target and a second install target that strips during
installation. Change the creation of all installation targets to use
this new function. Stripping doesn't make a whole lot of sense for some
installation targets (e.g. the LLVM headers), but consistency doesn't
hurt.

I'll make other repositories (e.g. clang, compiler-rt) use this in a
follow-up, and then add an `install-distribution-stripped` target to
actually accomplish the end goal of creating a stripped distribution. I
don't want to do that step yet because the creation of that target would
depend on the presence of the `install-*-stripped` target for each
distribution component, and the distribution components from other
repositories will be missing that target right now.

Differential Revision: https://reviews.llvm.org/D40620

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319480 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 46 insertions, 35 deletions

diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index 908e7ee51ca..26da2d13eed 100644
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -569,6 +569,32 @@ function(llvm_add_library name)
   endif()
 endfunction()
 
+function(add_llvm_install_targets target)
+  cmake_parse_arguments(ARG "" "COMPONENT;PREFIX" "DEPENDS" ${ARGN})
+  if(ARG_COMPONENT)
+    set(component_option -DCMAKE_INSTALL_COMPONENT="${ARG_COMPONENT}")
+  endif()
+  if(ARG_PREFIX)
+    set(prefix_option -DCMAKE_INSTALL_PREFIX="${ARG_PREFIX}")
+  endif()
+
+  add_custom_target(${target}
+                    DEPENDS ${ARG_DEPENDS}
+                    COMMAND "${CMAKE_COMMAND}"
+                            ${component_option}
+                            ${prefix_option}
+                            -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
+                    USES_TERMINAL)
+  add_custom_target(${target}-stripped
+                    DEPENDS ${ARG_DEPENDS}
+                    COMMAND "${CMAKE_COMMAND}"
+                            ${component_option}
+                            ${prefix_option}
+                            -DCMAKE_INSTALL_DO_STRIP=1
+                            -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
+                    USES_TERMINAL)
+endfunction()
+
 macro(add_llvm_library name)
   cmake_parse_arguments(ARG
     "SHARED;BUILDTREE_ONLY"
@@ -619,11 +645,9 @@ macro(add_llvm_library name)
               COMPONENT ${name})
 
       if (NOT CMAKE_CONFIGURATION_TYPES)
-        add_custom_target(install-${name}
-                          DEPENDS ${name}
-                          COMMAND "${CMAKE_COMMAND}"
-                                  -DCMAKE_INSTALL_COMPONENT=${name}
-                                  -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+        add_llvm_install_targets(install-${name}
+                                 DEPENDS ${name}
+                                 COMPONENT ${name})
       endif()
     endif()
     set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
@@ -849,11 +873,9 @@ macro(add_llvm_tool name)
               COMPONENT ${name})
 
       if (NOT CMAKE_CONFIGURATION_TYPES)
-        add_custom_target(install-${name}
-                          DEPENDS ${name}
-                          COMMAND "${CMAKE_COMMAND}"
-                                  -DCMAKE_INSTALL_COMPONENT=${name}
-                                  -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+        add_llvm_install_targets(install-${name}
+                                 DEPENDS ${name}
+                                 COMPONENT ${name})
       endif()
     endif()
   endif()
@@ -889,11 +911,9 @@ macro(add_llvm_utility name)
       RUNTIME DESTINATION ${LLVM_UTILS_INSTALL_DIR}
       COMPONENT ${name})
     if (NOT CMAKE_CONFIGURATION_TYPES)
-      add_custom_target(install-${name}
-                        DEPENDS ${name}
-                        COMMAND "${CMAKE_COMMAND}"
-                                -DCMAKE_INSTALL_COMPONENT=${name}
-                                -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+      add_llvm_install_targets(install-${name}
+                               DEPENDS ${name}
+                               COMPONENT ${name})
     endif()
   endif()
 endmacro(add_llvm_utility name)
@@ -1400,11 +1420,9 @@ function(llvm_install_library_symlink name dest type)
           COMPONENT ${component})
 
   if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE)
-    add_custom_target(install-${name}
-                      DEPENDS ${name} ${dest} install-${dest}
-                      COMMAND "${CMAKE_COMMAND}"
-                              -DCMAKE_INSTALL_COMPONENT=${name}
-                              -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+    add_llvm_install_targets(install-${name}
+                             DEPENDS ${name} ${dest} install-${dest}
+                             COMPONENT ${name})
   endif()
 endfunction()
 
@@ -1435,11 +1453,9 @@ function(llvm_install_symlink name dest)
           COMPONENT ${component})
 
   if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE)
-    add_custom_target(install-${name}
-                      DEPENDS ${name} ${dest} install-${dest}
-                      COMMAND "${CMAKE_COMMAND}"
-                              -DCMAKE_INSTALL_COMPONENT=${name}
-                              -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+    add_llvm_install_targets(install-${name}
+                             DEPENDS ${name} ${dest} install-${dest}
+                             COMPONENT ${name})
   endif()
 endfunction()
 
diff --git a/cmake/modules/CMakeLists.txt b/cmake/modules/CMakeLists.txt
index ac4b0b7c030..6074e835859 100644
--- a/cmake/modules/CMakeLists.txt
+++ b/cmake/modules/CMakeLists.txt
@@ -129,9 +129,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
   if (NOT CMAKE_CONFIGURATION_TYPES)
     # Add a dummy target so this can be used with LLVM_DISTRIBUTION_COMPONENTS
     add_custom_target(cmake-exports)
-    add_custom_target(install-cmake-exports
-                      COMMAND "${CMAKE_COMMAND}"
-                                  -DCMAKE_INSTALL_COMPONENT=cmake-exports
-                                  -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+    add_llvm_install_targets(install-cmake-exports
+                             COMPONENT cmake-exports)
   endif()
 endif()
diff --git a/cmake/modules/LLVMExternalProjectUtils.cmake b/cmake/modules/LLVMExternalProjectUtils.cmake
index 8ecf42acfee..373387c755c 100644
--- a/cmake/modules/LLVMExternalProjectUtils.cmake
+++ b/cmake/modules/LLVMExternalProjectUtils.cmake
@@ -189,12 +189,9 @@ function(llvm_ExternalProject_Add name source_dir)
     install(CODE "execute_process\(COMMAND \${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=\${CMAKE_INSTALL_PREFIX} -P ${BINARY_DIR}/cmake_install.cmake \)"
       COMPONENT ${name})
 
-    add_custom_target(install-${name}
-                      DEPENDS ${name}
-                      COMMAND "${CMAKE_COMMAND}"
-                               -DCMAKE_INSTALL_COMPONENT=${name}
-                               -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
-                      USES_TERMINAL)
+    add_llvm_install_targets(install-${name}
+                             DEPENDS ${name}
+                             COMPONENT ${name})
   endif()
 
   # Add top-level targets