[CMake] [Darwin] Support building the macho_embedded builtin libraries.
Summary: This ports functionality from the clang_macho_embedded.mk platform makefile over to CMake.
Reviewers: bogner, samsonov, bob.wilson
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D13226
llvm-svn: 248850
diff --git a/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake b/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
index 1e017b8..474c9fd 100644
--- a/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
+++ b/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
@@ -100,8 +100,6 @@
set(${output} ${tmp_var} PARENT_SCOPE)
endfunction()
-set(DARWIN_EXCLUDE_DIR ${CMAKE_SOURCE_DIR}/lib/builtins/Darwin-excludes)
-
# Read and process the exclude file into a list of symbols
function(darwin_read_list_from_file output_var file)
if(EXISTS ${file})
@@ -233,6 +231,8 @@
# Generates builtin libraries for all operating systems specified in ARGN. Each
# OS library is constructed by lipo-ing together single-architecture libraries.
macro(darwin_add_builtin_libraries)
+ set(DARWIN_EXCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/Darwin-excludes)
+
if(CMAKE_CONFIGURATION_TYPES)
foreach(type ${CMAKE_CONFIGURATION_TYPES})
set(CMAKE_C_FLAGS_${type} -O3)
@@ -310,5 +310,85 @@
OUTPUT_DIR ${COMPILER_RT_LIBRARY_OUTPUT_DIR})
endif()
endforeach()
+ darwin_add_embedded_builtin_libraries()
endmacro()
+function(darwin_add_embedded_builtin_libraries)
+ set(MACHO_SYM_DIR ${CMAKE_CURRENT_SOURCE_DIR}/macho_embedded)
+ if(CMAKE_CONFIGURATION_TYPES)
+ foreach(type ${CMAKE_CONFIGURATION_TYPES})
+ set(CMAKE_C_FLAGS_${type} -Oz)
+ set(CMAKE_CXX_FLAGS_${type} -Oz)
+ endforeach()
+ else()
+ set(CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE} -Oz)
+ endif()
+
+ set(CMAKE_C_FLAGS "-Wall -fomit-frame-pointer -ffreestanding")
+ set(CMAKE_CXX_FLAGS ${CMAKE_C_FLAGS})
+ set(CMAKE_ASM_FLAGS ${CMAKE_C_FLAGS})
+
+ set(SOFT_FLOAT_FLAG -mfloat-abi=soft)
+ set(HARD_FLOAT_FLAG -mfloat-abi=hard)
+
+ set(PIC_FLAG_ -fPIC)
+ set(STATIC_FLAG -static)
+
+ set(DARWIN_macho_embedded_ARCHS armv6m armv7m armv7em armv7 i386 x86_64)
+
+ set(DARWIN_macho_embedded_LIBRARY_OUTPUT_DIR
+ ${COMPILER_RT_OUTPUT_DIR}/lib/macho_embedded)
+
+ set(DARWIN_SOFT_FLOAT_ARCHS armv6m armv7m armv7em armv7)
+ set(DARWIN_HARD_FLOAT_ARCHS armv7em armv7 i386 x86_64)
+
+ darwin_read_list_from_file(common_FUNCTIONS ${MACHO_SYM_DIR}/common.txt)
+ darwin_read_list_from_file(thumb2_FUNCTIONS ${MACHO_SYM_DIR}/thumb2.txt)
+ darwin_read_list_from_file(arm_FUNCTIONS ${MACHO_SYM_DIR}/arm.txt)
+ darwin_read_list_from_file(i386_FUNCTIONS ${MACHO_SYM_DIR}/i386.txt)
+
+
+ set(armv6m_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS})
+ set(armv7m_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS})
+ set(armv7em_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS})
+ set(armv7_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS})
+ set(i386_FUNCTIONS ${common_FUNCTIONS} ${i386_FUNCTIONS})
+ set(x86_64_FUNCTIONS ${common_FUNCTIONS})
+
+ foreach(arch ${DARWIN_macho_embedded_ARCHS})
+ darwin_filter_builtin_sources(${arch}_filtered_sources
+ INCLUDE ${arch}_FUNCTIONS
+ ${${arch}_SOURCES})
+ if(NOT ${arch}_filtered_sources)
+ message("${arch}_SOURCES: ${${arch}_SOURCES}")
+ message("${arch}_FUNCTIONS: ${${arch}_FUNCTIONS}")
+ message(FATAL_ERROR "Empty filtered sources!")
+ endif()
+ endforeach()
+
+ foreach(float_type SOFT HARD)
+ foreach(type PIC STATIC)
+ string(TOLOWER "${float_type}_${type}" lib_suffix)
+ foreach(arch ${DARWIN_${float_type}_FLOAT_ARCHS})
+ set(DARWIN_macho_embedded_SYSROOT ${DARWIN_osx_SYSROOT})
+ if(${arch} MATCHES "^arm")
+ set(DARWIN_macho_embedded_SYSROOT ${DARWIN_ios_SYSROOT})
+ endif()
+ darwin_add_builtin_library(clang_rt ${lib_suffix}
+ OS macho_embedded
+ ARCH ${arch}
+ SOURCES ${${arch}_filtered_sources}
+ CFLAGS -arch ${arch} ${${type}_FLAG} ${${float_type}_FLOAT_FLAG}
+ PARENT_TARGET builtins)
+ endforeach()
+ foreach(lib ${macho_embedded_${lib_suffix}_libs})
+ set_target_properties(${lib} PROPERTIES LINKER_LANGUAGE C)
+ endforeach()
+ darwin_lipo_libs(clang_rt.${lib_suffix}
+ PARENT_TARGET builtins
+ LIPO_FLAGS ${macho_embedded_${lib_suffix}_lipo_flags}
+ DEPENDS ${macho_embedded_${lib_suffix}_libs}
+ OUTPUT_DIR ${DARWIN_macho_embedded_LIBRARY_OUTPUT_DIR})
+ endforeach()
+ endforeach()
+endfunction()