def invoke_configure(build_folder, install_folder, root_folder, target,
host_arch):
"""
Invokes the configure script to generate a Makefile
:param build_folder: Build directory
:param install_folder: Directory to install binutils to
:param root_folder: Working directory
:param target: Target to compile for
:param host_arch: Host architecture to optimize for
"""
configure = [
root_folder.joinpath(utils.current_binutils(), "configure").as_posix(),
'--prefix=%s' % install_folder.as_posix(),
'--enable-deterministic-archives', '--enable-plugins', '--quiet',
'CFLAGS=-O2 -march=%s -mtune=%s' % (host_arch, host_arch),
'CXXFLAGS=-O2 -march=%s -mtune=%s' % (host_arch, host_arch)
]
configure_arch_flags = {
"arm-linux-gnueabi": [
'--disable-multilib', '--disable-nls', '--with-gnu-as',
'--with-gnu-ld',
'--with-sysroot=%s' % install_folder.joinpath(target).as_posix()
],
"mipsel-linux-gnu": [
'--disable-compressed-debug-sections', '--enable-new-dtags',
'--enable-shared',
'--enable-targets=mips64el-linux-gnuabi64,mips64el-linux-gnuabin32',
'--enable-threads'
],
"powerpc-linux-gnu": [
'--enable-lto', '--enable-relro', '--enable-shared',
'--enable-threads', '--disable-gdb', '--disable-sim',
'--disable-werror', '--with-pic', '--with-system-zlib'
],
"x86_64-linux-gnu": [
'--enable-lto', '--enable-relro', '--enable-shared',
'--enable-targets=x86_64-pep', '--enable-threads', '--disable-gdb',
'--disable-werror', '--with-pic', '--with-system-zlib'
]
}
configure_arch_flags['aarch64-linux-gnu'] = configure_arch_flags[
'arm-linux-gnueabi'] + ['--enable-ld=default', '--enable-gold']
configure_arch_flags['powerpc64-linux-gnu'] = configure_arch_flags[
'powerpc-linux-gnu']
configure_arch_flags['powerpc64le-linux-gnu'] = configure_arch_flags[
'powerpc-linux-gnu']
configure += configure_arch_flags.get(target, [])
# If the current machine is not the target, add the prefix to indicate
# that it is a cross compiler
if not host_is_target(target):
configure += ['--program-prefix=%s-' % target, '--target=%s' % target]
utils.print_header("Building %s binutils" % target)
subprocess.run(configure, check=True, cwd=build_folder.as_posix())
def base_cmake_defines(dirs):
"""
Generate base cmake defines, which will always be present, regardless of
user input and stage
:param dirs: An instance of the Directories class with the paths to use
:return: A set of defines
"""
# yapf: disable
defines = {
# Objective-C Automatic Reference Counting (we don't use Objective-C)
# https://clang.llvm.org/docs/AutomaticReferenceCounting.html
'CLANG_ENABLE_ARCMT': 'OFF',
# We don't (currently) use the static analyzer and it saves cycles
# according to Chromium OS:
# https://crrev.com/44702077cc9b5185fc21e99485ee4f0507722f82
'CLANG_ENABLE_STATIC_ANALYZER': 'OFF',
# We don't use the plugin system and it will remove unused symbols:
# https://crbug.com/917404
'CLANG_PLUGIN_SUPPORT': 'OFF',
# For LLVMgold.so, which is used for LTO with ld.gold
'LLVM_BINUTILS_INCDIR': dirs.root_folder.joinpath(utils.current_binutils(), "include").as_posix(),
# Don't build bindings; they are for other languages that the kernel does not use
'LLVM_ENABLE_BINDINGS': 'OFF',
# We need to enable LLVM plugin support so that LLVMgold.so is loadable
'LLVM_ENABLE_PLUGINS': 'ON',
# Don't build Ocaml documentation
'LLVM_ENABLE_OCAMLDOC': 'OFF',
# Removes system dependency on terminfo and almost every major clang provider turns this off
'LLVM_ENABLE_TERMINFO': 'OFF',
# Don't build clang-tools-extras to cut down on build targets (about 400 files or so)
'LLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR': '',
# Don't include documentation build targets because it is available on the web
'LLVM_INCLUDE_DOCS': 'OFF',
# Don't include example build targets to save on cmake cycles
'LLVM_INCLUDE_EXAMPLES': 'OFF',
'LLVM_TABLEGEN': '/home/runner/llvm-tblgen' ,
'CLANG_TABLEGEN': '/home/runner/clang-tblgen' ,
'CMAKE_C_COMPILER': '/home/runner/clang/bin/aarch64-linux-android-gcc' ,
'CMAKE_CXX_COMPILER': '/home/runner/clang/bin/aarch64-linux-android-g++' ,
'CMAKE_CROSSCOMPILING': 'True' ,
'LLVM_TARGET_ARCH': 'AArch64' ,
'LLVM_DEFAULT_TARGET_TRIPLE': 'aarch64-linux-android' ,
'LLVM_TARGETS_TO_BUILD': 'AArch64' ,
}
# yapf: enable
return defines
def base_cmake_defines(dirs):
"""
Generate base cmake defines, which will always be present, regardless of
user input and stage
:param dirs: An instance of the Directories class with the paths to use
:return: A set of defines
"""
# yapf: disable
defines = {
# Objective-C Automatic Reference Counting (we don't use Objective-C)
# https://clang.llvm.org/docs/AutomaticReferenceCounting.html
'CLANG_ENABLE_ARCMT': 'OFF',
# We don't (currently) use the static analyzer and it saves cycles
# according to Chromium OS:
# https://crrev.com/44702077cc9b5185fc21e99485ee4f0507722f82
'CLANG_ENABLE_STATIC_ANALYZER': 'OFF',
# We don't use the plugin system and it will remove unused symbols:
# https://crbug.com/917404
'CLANG_PLUGIN_SUPPORT': 'OFF',
# For LLVMgold.so, which is used for LTO with ld.gold
'LLVM_BINUTILS_INCDIR': dirs.root_folder.joinpath(utils.current_binutils(), "include").as_posix(),
# Don't build bindings; they are for other languages that the kernel does not use
'LLVM_ENABLE_BINDINGS': 'OFF',
# Don't build Ocaml documentation
'LLVM_ENABLE_OCAMLDOC': 'OFF',
# Removes system dependency on terminfo and almost every major clang provider turns this off
'LLVM_ENABLE_TERMINFO': 'OFF',
# Don't build clang-tools-extras to cut down on build targets (about 400 files or so)
'LLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR': '',
# Don't include documentation build targets because it is available on the web
'LLVM_INCLUDE_DOCS': 'OFF',
# Don't include example build targets to save on cmake cycles
'LLVM_INCLUDE_EXAMPLES': 'OFF',
}
# yapf: enable
# Use ccache if it is available for faster incremental builds
if shutil.which("ccache") is not None:
defines['LLVM_CCACHE_BUILD'] = 'ON'
return defines
