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[CMake] Temporary workaround to support building builtins on darwin with a toolchain that may not support all x86 and arm architectures. 

This is at least a little better than my first attempt. We still really need a way to do compile checks without linking.

llvm-svn: 252572
This commit is contained in:
Chris Bieneman 2015-11-10 00:41:18 +00:00
parent 5c1ac90715
commit 7d824da189
1 changed files with 18 additions and 3 deletions
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21
compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
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@ -344,6 +344,24 @@ macro(darwin_add_builtin_libraries)
endmacro()
function(darwin_add_embedded_builtin_libraries)
# this is a hacky opt-out. If you can't target both intel and arm
# architectures we bail here.
set(DARWIN_SOFT_FLOAT_ARCHS armv6m armv7m armv7em armv7)
set(DARWIN_HARD_FLOAT_ARCHS armv7em armv7)
if(NOT COMPILER_RT_SUPPORTED_ARCH MATCHES ".*armv.*")
return()
endif()
list(FIND COMPILER_RT_SUPPORTED_ARCH i386 i386_idx)
if(i386_idx GREATER -1)
list(APPEND DARWIN_HARD_FLOAT_ARCHS i386)
endif()
list(FIND COMPILER_RT_SUPPORTED_ARCH x86_64 x86_64_idx)
if(x86_64_idx GREATER -1)
list(APPEND DARWIN_HARD_FLOAT_ARCHS x86_64)
endif()
set(MACHO_SYM_DIR ${CMAKE_CURRENT_SOURCE_DIR}/macho_embedded)
if(CMAKE_CONFIGURATION_TYPES)
foreach(type ${CMAKE_CONFIGURATION_TYPES})
@ -376,9 +394,6 @@ function(darwin_add_embedded_builtin_libraries)
set(CFLAGS_armv7m "-target thumbv7-apple-darwin-eabi")
set(CFLAGS_i386 "-march=pentium")
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(thumb2_64_FUNCTIONS ${MACHO_SYM_DIR}/thumb2-64.txt)