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[CMake] Pass DYLD_LIBRARY_PATH as CMake variable instead of as envar 

On OS X 10.11 System Integrity Protection prevents the DYLD environment variables from being set on system binaries. To work around this r276710 accepts DYLD_LIBRARY_PATH as a CMake variable and sets it directly on the archiver commands.

To make this work with bootstrapping we need to set DYLD_LIBRARY_PATH to the current stage's library directory and pass that into the next stage's configuration.

llvm-svn: 276711
This commit is contained in:
Chris Bieneman 2016-07-25 23:48:14 +00:00
parent f4a56a7d20
commit d052efc332
1 changed files with 9 additions and 6 deletions
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15
clang/CMakeLists.txt
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@ -494,7 +494,6 @@ if (CLANG_ENABLE_BOOTSTRAP)
set(STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-stamps/)
set(BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-bins/)
set(cmake_command ${CMAKE_COMMAND})
# If the next stage is LTO we need to depend on LTO and possibly LLVMgold
if(BOOTSTRAP_LLVM_ENABLE_LTO OR LLVM_ENABLE_LTO)
@ -503,8 +502,13 @@ if (CLANG_ENABLE_BOOTSTRAP)
# on Darwin we need to set DARWIN_LTO_LIBRARY so that -flto will work
# using the just-built compiler, and we need to override DYLD_LIBRARY_PATH
# so that the host object file tools will use the just-built libLTO.
set(LTO_LIBRARY -DDARWIN_LTO_LIBRARY=${LLVM_SHLIB_OUTPUT_INTDIR}/libLTO.dylib)
set(cmake_command ${CMAKE_COMMAND} -E env DYLD_LIBRARY_PATH=${LLVM_LIBRARY_OUTPUT_INTDIR} ${CMAKE_COMMAND})
# However if System Integrity Protection is enabled the DYLD variables
# will be scrubbed from the environment of any base system commands. This
# includes /bin/sh, which ninja uses when executing build commands. To
# work around the envar being filtered away we pass it in as a CMake
# variable, and have LLVM's CMake append the envar to the archiver calls.
set(LTO_LIBRARY -DDARWIN_LTO_LIBRARY=${LLVM_SHLIB_OUTPUT_INTDIR}/libLTO.dylib
-DDYLD_LIBRARY_PATH=${LLVM_LIBRARY_OUTPUT_INTDIR})
elseif(NOT WIN32)
list(APPEND LTO_DEP LLVMgold llvm-ar llvm-ranlib)
set(LTO_AR -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar)
@ -604,7 +608,6 @@ if (CLANG_ENABLE_BOOTSTRAP)
-DCLANG_STAGE=${NEXT_CLANG_STAGE}
${COMPILER_OPTIONS}
${LTO_LIBRARY} ${LTO_AR} ${LTO_RANLIB} ${verbose} ${PGO_OPT}
CMAKE_COMMAND ${cmake_command}
INSTALL_COMMAND ""
STEP_TARGETS configure build
USES_TERMINAL_CONFIGURE 1
@ -615,7 +618,7 @@ if (CLANG_ENABLE_BOOTSTRAP)
# exclude really-install from main target
set_target_properties(${NEXT_CLANG_STAGE} PROPERTIES _EP_really-install_EXCLUDE_FROM_MAIN On)
ExternalProject_Add_Step(${NEXT_CLANG_STAGE} really-install
COMMAND ${cmake_command} --build <BINARY_DIR> --target install
COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target install
COMMENT "Performing install step for '${NEXT_CLANG_STAGE}'"
DEPENDEES build
USES_TERMINAL 1
@ -631,7 +634,7 @@ if (CLANG_ENABLE_BOOTSTRAP)
set_target_properties(${NEXT_CLANG_STAGE} PROPERTIES _EP_${target}_EXCLUDE_FROM_MAIN On)
ExternalProject_Add_Step(${NEXT_CLANG_STAGE} ${target}
COMMAND ${cmake_command} --build <BINARY_DIR> --target ${target}
COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> --target ${target}
COMMENT "Performing ${target} for '${NEXT_CLANG_STAGE}'"
DEPENDEES configure
USES_TERMINAL 1