This is an archive of the discontinued LLVM Phabricator instance.

Differential D41829

[cmake] WIP: Add cache file to bootstrap linux cross compile on Darwin.
AbandonedPublic

Authored by hintonda on Jan 8 2018, 11:42 AM.

Details

Reviewers
beanz
compnerd
phosek
smeenai
alexander-shaposhnikov
Summary

Add ability to cross compile clang on Darwin and target Linux.

This patch has the following issues:

  • LIbFuzzer fails to compile due to issues with compiling an internal version of libc++.
    • Patch: TBD
    • Workaround: pass -DBOOTSTRAP_COMPILER_RT_BUILD_LIBFUZZER=OFF

Diff Detail

Event Timeline

hintonda created this revision.Jan 8 2018, 11:42 AM
Herald added a subscriber: mgorny. · View Herald TranscriptJan 8 2018, 11:42 AM
hintonda added a parent revision: D41828: [cmake] Add linux toolchain file..Jan 8 2018, 12:21 PM
hintonda updated this revision to Diff 129028.Jan 8 2018, 7:27 PM
  • Also pass LLVM_CONFIG_EXE.
Harbormaster completed remote builds in B13615: Diff 129028.Jan 8 2018, 7:27 PM
hintonda updated this revision to Diff 130367.Jan 18 2018, 1:11 AM

Refactor to eliminate need for second stage and toolchain files.

Harbormaster completed remote builds in B13964: Diff 130367.Jan 18 2018, 1:12 AM
hintonda retitled this revision from [cmake] Add cache file to bootstrap 2-stage linux cross compile on Darwin. to [cmake] Add cache file to bootstrap linux cross compile on Darwin..Jan 18 2018, 1:22 AM
hintonda edited the summary of this revision. (Show Details)
hintonda edited the summary of this revision. (Show Details)Jan 18 2018, 1:35 AM
hintonda mentioned this in D41828: [cmake] Add linux toolchain file..Jan 18 2018, 1:49 AM
hintonda updated this revision to Diff 130638.Jan 19 2018, 9:47 AM
hintonda edited the summary of this revision. (Show Details)
  • Also pass LLVM_CONFIG_EXE.
  • Add llvm-objcopy, and make sure that is stage2 cache file is passed,
Harbormaster completed remote builds in B14032: Diff 130638.Jan 19 2018, 9:49 AM
hintonda updated this revision to Diff 130748.Jan 19 2018, 9:20 PM
  • Use LLVM_CONFIG_PATH instead of LLVM_CONFIG_EXE.
Harbormaster completed remote builds in B14067: Diff 130748.Jan 19 2018, 9:20 PM
hintonda edited the summary of this revision. (Show Details)Jan 19 2018, 9:24 PM
hintonda edited the summary of this revision. (Show Details)Jan 19 2018, 9:31 PM
hintonda edited the summary of this revision. (Show Details)Jan 23 2018, 10:12 PM
hintonda retitled this revision from [cmake] Add cache file to bootstrap linux cross compile on Darwin. to [cmake] WIP: Add cache file to bootstrap linux cross compile on Darwin..Jan 28 2018, 7:21 PM
hintonda edited the summary of this revision. (Show Details)
hintonda updated this revision to Diff 131742.Jan 28 2018, 8:06 PM
hintonda edited the summary of this revision. (Show Details)
  • Libfuzzers won't build, so turn off.
  • Fix typos, and set cache.
Harbormaster completed remote builds in B14324: Diff 131742.Jan 28 2018, 8:08 PM
hintonda abandoned this revision.Mar 29 2019, 2:08 PM
Herald added a reviewer: alexander-shaposhnikov. · View Herald TranscriptMar 29 2019, 2:08 PM
Herald added a project: Restricted Project. · View Herald Transcript
Herald added a subscriber: jdoerfert. · View Herald Transcript

Revision Contents

PathSize
cmake/
caches/
60 lines

Diff 129028

cmake/caches/Linux.cmake

  • This file was added.
# This file is primarily for cross compiling clang+llvm, et al, for
# Linux on Darwin, and can be invoked like this:
#
# cmake -GNinja -DBOOTSTRAP_CMAKE_SYSROOT=<path> [OPTIONS] \
# -DBOOTSTRAP_CMAKE_TOOLCHAIN_FILE=<llvm root>/cmake/platforms/Linux.cmake \
# -C <clang root>/cmake/caches/Linux.cmake ../llvm
if(NOT DEFINED BOOTSTRAP_CMAKE_SYSROOT)
message(SEND_ERROR "Missing required argument -DBOOTSTRAP_CMAKE_SYSROOT=<sysroot path>.")
endif()
if(NOT DEFINED BOOTSTRAP_CMAKE_TOOLCHAIN_FILE)
message(SEND_ERROR "Missing required argument -DBOOTSTRAP_CMAKE_TOOLCHAIN_FILE=<file>.")
endif()
set(LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
set(CMAKE_BUILD_TYPE RELEASE CACHE STRING "")
set(LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "")
set(CLANG_ENABLE_BOOTSTRAP ON CACHE BOOL "")
if(NOT DEFINED BOOTSTRAP_LLVM_DEFAULT_TARGET_TRIPLE)
set(BOOTSTRAP_LLVM_DEFAULT_TARGET_TRIPLE "x86_64-unknown-linux-gnu")
endif()
# Since LLVM_ENABLE_PROJECTS gets passed automatically to the next
# stage, use another variable to pass the desired projects to stage2.
if(DEFINED BOOTSTRAP_LLVM_ENABLE_PROJECTS)
set(BOOTSTRAP_LLVM_ENABLE_PROJECTS_OVERRIDE ${BOOTSTRAP_LLVM_ENABLE_PROJECTS} CACHE STRING "" FORCE)
unset(BOOTSTRAP_LLVM_ENABLE_PROJECTS CACHE)
else()
set(BOOTSTRAP_LLVM_ENABLE_PROJECTS_OVERRIDE "clang;libcxx;libcxxabi;libunwind" CACHE STRING "" FORCE)
endif()
if(CMAKE_HOST_APPLE)
# Make sure at least clang and lld are included.
list(APPEND LLVM_ENABLE_PROJECTS clang lld)
set(LLVM_ENABLE_PROJECTS ${LLVM_ENABLE_PROJECTS} CACHE STRING "")
# Passing -fuse-ld=lld is hard for cmake to handle correctly, so
# make lld the default linker.
set(CLANG_DEFAULT_LINKER lld CACHE STRING "" FORCE)
set(BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "")
set(BOOTSTRAP_CMAKE_AR ${CMAKE_BINARY_DIR}/bin/llvm-ar CACHE STRING "")
set(BOOTSTRAP_CMAKE_RANLIB ${CMAKE_BINARY_DIR}/bin/llvm-ranlib CACHE STRING "")
set(BOOTSTRAP_CLANG_TABLEGEN ${CMAKE_BINARY_DIR}/bin/clang-tblgen CACHE STRING "")
set(BOOTSTRAP_LLVM_TABLEGEN ${CMAKE_BINARY_DIR}/bin/llvm-tblgen CACHE STRING "")
set(BOOTSTRAP_LLVM_CONFIG_EXE ${CMAKE_BINARY_DIR}/bin/llvm-config CACHE STRING "")
endif()
# Since we just want to build a bootstrap compiler, turn off as much
# as possible.
set(LLVM_INCLUDE_DOCS OFF CACHE BOOL "")
set(LLVM_INCLUDE_EXAMPLES OFF CACHE BOOL "")
set(LLVM_INCLUDE_RUNTIMES OFF CACHE BOOL "")
set(LLVM_INCLUDE_TESTS OFF CACHE BOOL "")
set(LLVM_INCLUDE_UTILS OFF CACHE BOOL "")
set(CLANG_BUILD_TOOLS OFF CACHE BOOL "")
set(CLANG_ENABLE_ARCMT OFF CACHE BOOL "")
set(CLANG_ENABLE_STATIC_ANALYZER OFF CACHE BOOL "")