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Differential D54655

[CMake] Use lld and llvm-objcopy for first stage compiler in Fuchsia
ClosedPublic

Authored by phosek on Nov 16 2018, 3:05 PM.

Details

Reviewers
juliehockett
mcgrathr
jakehehrlich
alexander-shaposhnikov
Commits
rG4fd065a4ac4b: [CMake] Use lld and llvm-objcopy for first stage compiler in Fuchsia
rC347108: [CMake] Use lld and llvm-objcopy for first stage compiler in Fuchsia
rL347108: [CMake] Use lld and llvm-objcopy for first stage compiler in Fuchsia
Summary

When cross-compiling the second stage to a different target, we need to
make sure that the first-stage compiler can produce binaries for that
target. Using lld and llvm-objcopy as the default linker and objcopy
tool eliminates some of the dependencies on the host toolchain.

Diff Detail

Repository
rC Clang

Event Timeline

phosek created this revision.Nov 16 2018, 3:05 PM
Herald added a reviewer: alexander-shaposhnikov. · View Herald TranscriptNov 16 2018, 3:05 PM
Herald added subscribers: cfe-commits, mgorny. · View Herald Transcript
juliehockett accepted this revision.Nov 16 2018, 3:06 PM
This revision is now accepted and ready to land.Nov 16 2018, 3:06 PM
Closed by commit rL347108: [CMake] Use lld and llvm-objcopy for first stage compiler in Fuchsia (authored by phosek). · Explain WhyNov 16 2018, 3:09 PM
This revision was automatically updated to reflect the committed changes.
Herald added a subscriber: llvm-commits. · View Herald TranscriptNov 16 2018, 3:09 PM

Revision Contents

PathSize
clang/
cmake/
caches/
4 lines

Diff 174462

clang/cmake/caches/Fuchsia.cmake

Show All 16 Lines
set(LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "") set(LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "")
set(CMAKE_BUILD_TYPE Release CACHE STRING "") set(CMAKE_BUILD_TYPE Release CACHE STRING "")
set(BOOTSTRAP_LLVM_ENABLE_LTO ON CACHE BOOL "") set(BOOTSTRAP_LLVM_ENABLE_LTO ON CACHE BOOL "")
if(NOT APPLE) if(NOT APPLE)
set(BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "") set(BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "")
endif() endif()
if(NOT APPLE)
set(CLANG_DEFAULT_LINKER lld CACHE STRING "")
set(CLANG_DEFAULT_OBJCOPY llvm-objcopy CACHE STRING "")
endif()
set(CLANG_DEFAULT_CXX_STDLIB libc++ CACHE STRING "") set(CLANG_DEFAULT_CXX_STDLIB libc++ CACHE STRING "")
set(CLANG_DEFAULT_RTLIB compiler-rt CACHE STRING "") set(CLANG_DEFAULT_RTLIB compiler-rt CACHE STRING "")
if(APPLE) if(APPLE)
set(COMPILER_RT_ENABLE_IOS OFF CACHE BOOL "") set(COMPILER_RT_ENABLE_IOS OFF CACHE BOOL "")
set(COMPILER_RT_ENABLE_TVOS OFF CACHE BOOL "") set(COMPILER_RT_ENABLE_TVOS OFF CACHE BOOL "")
set(COMPILER_RT_ENABLE_WATCHOS OFF CACHE BOOL "") set(COMPILER_RT_ENABLE_WATCHOS OFF CACHE BOOL "")
elseif(UNIX) elseif(UNIX)
▲ Show 20 Lines • Show All 76 Lines • Show Last 20 Lines