909 lines
34 KiB
Plaintext
909 lines
34 KiB
Plaintext
# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# PGO
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# ==============================================================
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option(env='MOZ_PGO', help='Build with profile guided optimizations')
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set_config('MOZ_PGO', depends('MOZ_PGO')(lambda x: bool(x)))
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add_old_configure_assignment('MOZ_PGO', depends('MOZ_PGO')(lambda x: bool(x)))
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# yasm detection
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# ==============================================================
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yasm = check_prog('YASM', ['yasm'], allow_missing=True)
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@depends_if(yasm)
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@checking('yasm version')
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def yasm_version(yasm):
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version = check_cmd_output(
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yasm, '--version',
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onerror=lambda: die('Failed to get yasm version.')
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).splitlines()[0].split()[1]
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return Version(version)
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# Until we move all the yasm consumers out of old-configure.
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# bug 1257904
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add_old_configure_assignment('_YASM_MAJOR_VERSION',
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delayed_getattr(yasm_version, 'major'))
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add_old_configure_assignment('_YASM_MINOR_VERSION',
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delayed_getattr(yasm_version, 'minor'))
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@depends(yasm, target)
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def yasm_asflags(yasm, target):
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if yasm:
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asflags = {
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('OSX', 'x86'): '-f macho32',
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('OSX', 'x86_64'): '-f macho64',
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('WINNT', 'x86'): '-f win32',
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('WINNT', 'x86_64'): '-f x64',
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}.get((target.os, target.cpu), None)
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if asflags is None:
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# We're assuming every x86 platform we support that's
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# not Windows or Mac is ELF.
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if target.cpu == 'x86':
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asflags = '-f elf32'
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elif target.cpu == 'x86_64':
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asflags = '-f elf64'
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if asflags:
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asflags += ' -rnasm -pnasm'
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return asflags
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set_config('YASM_ASFLAGS', yasm_asflags)
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@depends(yasm_asflags)
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def have_yasm(value):
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if value:
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return True
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set_config('HAVE_YASM', have_yasm)
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# Until the YASM variable is not necessary in old-configure.
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add_old_configure_assignment('YASM', have_yasm)
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# Android NDK
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# ==============================================================
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@depends('--disable-compile-environment', build_project, gonkdir, '--help')
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def compiling_android(compile_env, build_project, gonkdir, _):
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return compile_env and (gonkdir or build_project in ('mobile/android', 'js'))
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include('android-ndk.configure', when=compiling_android)
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# MacOS deployment target version
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# ==============================================================
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# This needs to happen before any compilation test is done.
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option('--enable-macos-target', env='MACOSX_DEPLOYMENT_TARGET', nargs=1,
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default='10.7', help='Set the minimum MacOS version needed at runtime')
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@depends('--enable-macos-target', target)
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@imports(_from='os', _import='environ')
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def macos_target(value, target):
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if value and target.os == 'OSX':
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# Ensure every compiler process we spawn uses this value.
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environ['MACOSX_DEPLOYMENT_TARGET'] = value[0]
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return value[0]
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if value and value.origin != 'default':
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die('--enable-macos-target cannot be used when targeting %s',
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target.os)
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set_config('MACOSX_DEPLOYMENT_TARGET', macos_target)
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add_old_configure_assignment('MACOSX_DEPLOYMENT_TARGET', macos_target)
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# Compiler wrappers
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# ==============================================================
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# Normally, we'd use js_option and automatically have those variables
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# propagated to js/src, but things are complicated by possible additional
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# wrappers in CC/CXX, and by other subconfigures that do not handle those
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# options and do need CC/CXX altered.
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option('--with-compiler-wrapper', env='COMPILER_WRAPPER', nargs=1,
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help='Enable compiling with wrappers such as distcc and ccache')
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option('--with-ccache', env='CCACHE', nargs='?',
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help='Enable compiling with ccache')
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@depends_if('--with-ccache')
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def ccache(value):
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if len(value):
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return value
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# If --with-ccache was given without an explicit value, we default to
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# 'ccache'.
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return 'ccache'
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ccache = check_prog('CCACHE', progs=(), input=ccache)
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@depends_if(ccache)
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def using_ccache(ccache):
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return True
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set_config('MOZ_USING_CCACHE', using_ccache)
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@depends('--with-compiler-wrapper', ccache)
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@imports(_from='mozbuild.shellutil', _import='split', _as='shell_split')
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def compiler_wrapper(wrapper, ccache):
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if wrapper:
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raw_wrapper = wrapper[0]
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wrapper = shell_split(raw_wrapper)
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wrapper_program = find_program(wrapper[0])
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if not wrapper_program:
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die('Cannot find `%s` from the given compiler wrapper `%s`',
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wrapper[0], raw_wrapper)
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wrapper[0] = wrapper_program
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if ccache:
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if wrapper:
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return tuple([ccache] + wrapper)
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else:
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return (ccache,)
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elif wrapper:
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return tuple(wrapper)
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add_old_configure_assignment('COMPILER_WRAPPER', compiler_wrapper)
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@depends_if(compiler_wrapper)
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def using_compiler_wrapper(compiler_wrapper):
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return True
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set_config('MOZ_USING_COMPILER_WRAPPER', using_compiler_wrapper)
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# Cross-compilation related things.
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# ==============================================================
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js_option('--with-toolchain-prefix', env='TOOLCHAIN_PREFIX', nargs=1,
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help='Prefix for the target toolchain')
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@depends('--with-toolchain-prefix', target, host, cross_compiling)
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def toolchain_prefix(value, target, host, cross_compiling):
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if value:
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return tuple(value)
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if cross_compiling:
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return ('%s-' % target.toolchain, '%s-' % target.alias)
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@depends(toolchain_prefix, target)
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def first_toolchain_prefix(toolchain_prefix, target):
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# Pass TOOLCHAIN_PREFIX down to the build system if it was given from the
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# command line/environment (in which case there's only one value in the tuple),
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# or when cross-compiling for Android.
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if toolchain_prefix and (target.os == 'Android' or len(toolchain_prefix) == 1):
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return toolchain_prefix[0]
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set_config('TOOLCHAIN_PREFIX', first_toolchain_prefix)
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add_old_configure_assignment('TOOLCHAIN_PREFIX', first_toolchain_prefix)
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# Compilers
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# ==============================================================
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include('compilers-util.configure')
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def try_preprocess(compiler, language, source):
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return try_invoke_compiler(compiler, language, source, ['-E'])
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@imports(_from='mozbuild.configure.constants', _import='CompilerType')
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@imports(_from='mozbuild.configure.constants',
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_import='CPU_preprocessor_checks')
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@imports(_from='mozbuild.configure.constants',
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_import='kernel_preprocessor_checks')
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@imports(_from='textwrap', _import='dedent')
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def get_compiler_info(compiler, language):
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'''Returns information about the given `compiler` (command line in the
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form of a list or tuple), in the given `language`.
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The returned information includes:
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- the compiler type (msvc, clang-cl, clang or gcc)
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- the compiler version
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- the compiler supported language
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- the compiler supported language version
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'''
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# Note: MSVC doesn't expose __STDC_VERSION__. It does expose __STDC__,
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# but only when given the -Za option, which disables compiler
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# extensions.
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# Note: We'd normally do a version check for clang, but versions of clang
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# in Xcode have a completely different versioning scheme despite exposing
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# the version with the same defines.
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# So instead, we make things such that the version is missing when the
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# clang used is below the minimum supported version (currently clang 3.6).
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# We then only include the version information when the C++ compiler
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# matches the feature check, so that an unsupported version of clang would
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# have no version number.
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check = dedent('''\
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#if defined(_MSC_VER)
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#if defined(__clang__)
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%COMPILER "clang-cl"
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%VERSION _MSC_FULL_VER
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#else
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%COMPILER "msvc"
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%VERSION _MSC_FULL_VER
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#endif
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#elif defined(__clang__)
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%COMPILER "clang"
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# if !__cplusplus || __has_feature(cxx_alignof)
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%VERSION __clang_major__.__clang_minor__.__clang_patchlevel__
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# endif
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#elif defined(__GNUC__)
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%COMPILER "gcc"
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%VERSION __GNUC__.__GNUC_MINOR__.__GNUC_PATCHLEVEL__
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#endif
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#if __cplusplus
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%cplusplus __cplusplus
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#elif __STDC_VERSION__
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%STDC_VERSION __STDC_VERSION__
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#elif __STDC__
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%STDC_VERSION 198900L
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#endif
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''')
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# While we're doing some preprocessing, we might as well do some more
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# preprocessor-based tests at the same time, to check the toolchain
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# matches what we want.
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for name, preprocessor_checks in (
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('CPU', CPU_preprocessor_checks),
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('KERNEL', kernel_preprocessor_checks),
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):
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for n, (value, condition) in enumerate(preprocessor_checks.iteritems()):
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check += dedent('''\
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#%(if)s %(condition)s
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%%%(name)s "%(value)s"
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''' % {
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'if': 'elif' if n else 'if',
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'condition': condition,
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'name': name,
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'value': value,
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})
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check += '#endif\n'
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# Also check for endianness. The advantage of living in modern times is
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# that all the modern compilers we support now have __BYTE_ORDER__ defined
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# by the preprocessor, except MSVC, which only supports little endian.
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check += dedent('''\
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#if _MSC_VER || __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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%ENDIANNESS "little"
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#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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%ENDIANNESS "big"
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#endif
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''')
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result = try_preprocess(compiler, language, check)
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if not result:
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raise FatalCheckError(
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'Unknown compiler or compiler not supported.')
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# Metadata emitted by preprocessors such as GCC with LANG=ja_JP.utf-8 may
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# have non-ASCII characters. Treat the output as bytearray.
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data = {}
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for line in result.splitlines():
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if line.startswith(b'%'):
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k, _, v = line.partition(' ')
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k = k.lstrip('%')
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data[k] = v.replace(' ', '').lstrip('"').rstrip('"')
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log.debug('%s = %s', k, data[k])
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try:
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type = CompilerType(data['COMPILER'])
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except:
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raise FatalCheckError(
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'Unknown compiler or compiler not supported.')
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cplusplus = int(data.get('cplusplus', '0L').rstrip('L'))
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stdc_version = int(data.get('STDC_VERSION', '0L').rstrip('L'))
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version = data.get('VERSION')
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if version and type in ('msvc', 'clang-cl'):
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msc_ver = version
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version = msc_ver[0:2]
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if len(msc_ver) > 2:
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version += '.' + msc_ver[2:4]
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if len(msc_ver) > 4:
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version += '.' + msc_ver[4:]
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if version:
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version = Version(version)
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return namespace(
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type=type,
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version=version,
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cpu=data.get('CPU'),
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kernel=data.get('KERNEL'),
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endianness=data.get('ENDIANNESS'),
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language='C++' if cplusplus else 'C',
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language_version=cplusplus if cplusplus else stdc_version,
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)
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@imports(_from='mozbuild.shellutil', _import='quote')
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def check_compiler(compiler, language, target):
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info = get_compiler_info(compiler, language)
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flags = []
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def append_flag(flag):
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if flag not in flags:
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if info.type == 'clang-cl':
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flags.append('-Xclang')
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flags.append(flag)
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# Check language standards
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# --------------------------------------------------------------------
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if language != info.language:
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raise FatalCheckError(
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'`%s` is not a %s compiler.' % (quote(*compiler), language))
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# Note: We do a strict version check because there sometimes are backwards
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# incompatible changes in the standard, and not all code that compiles as
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# C99 compiles as e.g. C11 (as of writing, this is true of libnestegg, for
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# example)
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if info.language == 'C' and info.language_version != 199901:
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if info.type in ('clang-cl', 'clang', 'gcc'):
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append_flag('-std=gnu99')
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# Note: MSVC, while supporting C++11, still reports 199711L for __cplusplus.
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# Note: this is a strict version check because we used to always add
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# -std=gnu++11.
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if info.language == 'C++':
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if info.type in ('clang', 'gcc') and info.language_version != 201103:
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append_flag('-std=gnu++11')
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# MSVC 2015 headers include C++14 features, but don't guard them
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# with appropriate checks.
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if info.type == 'clang-cl' and info.language_version != 201402:
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append_flag('-std=c++14')
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# We force clang-cl to emulate Visual C++ 2015 Update 3 with fallback to
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# cl.exe.
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if info.type == 'clang-cl' and info.version != '19.00.24213':
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# Those flags are direct clang-cl flags that don't need -Xclang, add
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# them directly.
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flags.append('-fms-compatibility-version=19.00.24213')
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flags.append('-fallback')
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# Check compiler target
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# --------------------------------------------------------------------
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if not info.cpu or info.cpu != target.cpu:
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if info.type == 'clang':
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append_flag('--target=%s' % target.toolchain)
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elif info.type == 'gcc':
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same_arch_different_bits = (
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('x86', 'x86_64'),
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('ppc', 'ppc64'),
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('sparc', 'sparc64'),
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)
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if (target.cpu, info.cpu) in same_arch_different_bits:
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append_flag('-m32')
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elif (info.cpu, target.cpu) in same_arch_different_bits:
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append_flag('-m64')
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if not info.kernel or info.kernel != target.kernel:
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if info.type == 'clang':
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append_flag('--target=%s' % target.toolchain)
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if not info.endianness or info.endianness != target.endianness:
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if info.type == 'clang':
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append_flag('--target=%s' % target.toolchain)
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return namespace(
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type=info.type,
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version=info.version,
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target_cpu=info.cpu,
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target_kernel=info.kernel,
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target_endianness=info.endianness,
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flags=flags,
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)
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@imports(_from='collections', _import='defaultdict')
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@imports(_from='__builtin__', _import='sorted')
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def get_vc_paths(base):
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vc = defaultdict(lambda: defaultdict(dict))
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subkey = r'Microsoft\VisualStudio\VC\*\*\*\Compiler'
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for v, h, t, p in get_registry_values(base + '\\' + subkey):
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vc[v][h][t] = p
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if not vc:
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return
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version, data = sorted(vc.iteritems(), key=lambda x: Version(x[0]))[-1]
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return data
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@depends(host)
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@imports('platform')
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def vc_compiler_path(host):
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if host.kernel != 'WINNT':
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return
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vc_host = {
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'x86': 'x86',
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'AMD64': 'x64',
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}.get(platform.machine())
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if vc_host is None:
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return
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vc_target = {
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'x86': 'x86',
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'x86_64': 'x64',
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'arm': 'arm',
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}.get(host.cpu)
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if vc_target is None:
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return
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base_key = r'HKEY_LOCAL_MACHINE\SOFTWARE'
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data = get_vc_paths(base_key)
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if not data:
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data = get_vc_paths(base_key + r'\Wow6432Node')
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if not data:
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return
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path = data.get(vc_host, {}).get(vc_target)
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if not path and vc_host == 'x64':
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vc_host = 'x86'
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path = data.get(vc_host, {}).get(vc_target)
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if not path:
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return
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path = os.path.dirname(path)
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if vc_host != vc_target:
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other_path = data.get(vc_host, {}).get(vc_host)
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if other_path:
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return (path, os.path.dirname(other_path))
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return (path,)
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@depends(vc_compiler_path)
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@imports('os')
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def toolchain_search_path(vc_compiler_path):
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if vc_compiler_path:
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result = [os.environ.get('PATH')]
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result.extend(vc_compiler_path)
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# We're going to alter PATH for good in windows.configure, but we also
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# need to do it for the valid_compiler() check below.
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os.environ['PATH'] = os.pathsep.join(result)
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return result
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@template
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def default_c_compilers(host_or_target):
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'''Template defining the set of default C compilers for the host and
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target platforms.
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`host_or_target` is either `host` or `target` (the @depends functions
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from init.configure.
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'''
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assert host_or_target in (host, target)
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@depends(host_or_target, target, toolchain_prefix)
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def default_c_compilers(host_or_target, target, toolchain_prefix):
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gcc = ('gcc',)
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if toolchain_prefix and host_or_target is target:
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gcc = tuple('%sgcc' % p for p in toolchain_prefix) + gcc
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if host_or_target.kernel == 'WINNT':
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return ('cl', 'clang-cl') + gcc + ('clang',)
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if host_or_target.kernel == 'Darwin':
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return ('clang',)
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return gcc + ('clang',)
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return default_c_compilers
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@template
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def default_cxx_compilers(c_compiler):
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'''Template defining the set of default C++ compilers for the host and
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target platforms.
|
|
`c_compiler` is the @depends function returning a Compiler instance for
|
|
the desired platform.
|
|
|
|
Because the build system expects the C and C++ compilers to be from the
|
|
same compiler suite, we derive the default C++ compilers from the C
|
|
compiler that was found if none was provided.
|
|
'''
|
|
|
|
@depends(c_compiler)
|
|
def default_cxx_compilers(c_compiler):
|
|
dir = os.path.dirname(c_compiler.compiler)
|
|
file = os.path.basename(c_compiler.compiler)
|
|
|
|
if c_compiler.type == 'gcc':
|
|
return (os.path.join(dir, file.replace('gcc', 'g++')),)
|
|
|
|
if c_compiler.type == 'clang':
|
|
return (os.path.join(dir, file.replace('clang', 'clang++')),)
|
|
|
|
return (c_compiler.compiler,)
|
|
|
|
return default_cxx_compilers
|
|
|
|
|
|
@template
|
|
def compiler(language, host_or_target, c_compiler=None, other_compiler=None,
|
|
other_c_compiler=None):
|
|
'''Template handling the generic base checks for the compiler for the
|
|
given `language` on the given platform (`host_or_target`).
|
|
`host_or_target` is either `host` or `target` (the @depends functions
|
|
from init.configure.
|
|
When the language is 'C++', `c_compiler` is the result of the `compiler`
|
|
template for the language 'C' for the same `host_or_target`.
|
|
When `host_or_target` is `host`, `other_compiler` is the result of the
|
|
`compiler` template for the same `language` for `target`.
|
|
When `host_or_target` is `host` and the language is 'C++',
|
|
`other_c_compiler` is the result of the `compiler` template for the
|
|
language 'C' for `target`.
|
|
'''
|
|
assert host_or_target in (host, target)
|
|
assert language in ('C', 'C++')
|
|
assert language == 'C' or c_compiler
|
|
assert host_or_target == target or other_compiler
|
|
assert language == 'C' or host_or_target == target or other_c_compiler
|
|
|
|
host_or_target_str = {
|
|
host: 'host',
|
|
target: 'target',
|
|
}[host_or_target]
|
|
|
|
var = {
|
|
('C', target): 'CC',
|
|
('C++', target): 'CXX',
|
|
('C', host): 'HOST_CC',
|
|
('C++', host): 'HOST_CXX',
|
|
}[language, host_or_target]
|
|
|
|
default_compilers = {
|
|
'C': lambda: default_c_compilers(host_or_target),
|
|
'C++': lambda: default_cxx_compilers(c_compiler),
|
|
}[language]()
|
|
|
|
what='the %s %s compiler' % (host_or_target_str, language)
|
|
|
|
option(env=var, nargs=1, help='Path to %s' % what)
|
|
|
|
# Handle the compiler given by the user through one of the CC/CXX/HOST_CC/
|
|
# HOST_CXX variables.
|
|
@depends_if(var)
|
|
@imports(_from='itertools', _import='takewhile')
|
|
@imports(_from='mozbuild.shellutil', _import='split', _as='shell_split')
|
|
def provided_compiler(cmd):
|
|
# Historically, the compiler variables have contained more than the
|
|
# path to the compiler itself. So for backwards compatibility, try to
|
|
# find what is what in there, assuming the first dash-prefixed item is
|
|
# a compiler option, the item before that is the compiler, and anything
|
|
# before that is a compiler wrapper.
|
|
cmd = shell_split(cmd[0])
|
|
|
|
without_flags = list(takewhile(lambda x: not x.startswith('-'), cmd))
|
|
|
|
return namespace(
|
|
wrapper=without_flags[:-1],
|
|
compiler=without_flags[-1],
|
|
flags=cmd[len(without_flags):],
|
|
)
|
|
|
|
# Derive the host compiler from the corresponding target compiler when no
|
|
# explicit compiler was given and we're not cross compiling. For the C++
|
|
# compiler, though, prefer to derive from the host C compiler when it
|
|
# doesn't match the target C compiler.
|
|
# As a special case, since clang supports all kinds of targets in the same
|
|
# executable, when cross compiling with clang, default to the same compiler
|
|
# as the target compiler, resetting flags.
|
|
if host_or_target == host:
|
|
args = (c_compiler, other_c_compiler) if other_c_compiler else ()
|
|
|
|
@depends(provided_compiler, other_compiler, cross_compiling, *args)
|
|
def provided_compiler(value, other_compiler, cross_compiling, *args):
|
|
if value:
|
|
return value
|
|
c_compiler, other_c_compiler = args if args else (None, None)
|
|
if not cross_compiling and c_compiler == other_c_compiler:
|
|
return other_compiler
|
|
if cross_compiling and other_compiler.type == 'clang':
|
|
return namespace(**{
|
|
k: [] if k == 'flags' else v
|
|
for k, v in other_compiler.__dict__.iteritems()
|
|
})
|
|
|
|
# Normally, we'd use `var` instead of `_var`, but the interaction with
|
|
# old-configure complicates things, and for now, we a) can't take the plain
|
|
# result from check_prog as CC/CXX/HOST_CC/HOST_CXX and b) have to let
|
|
# old-configure AC_SUBST it (because it's autoconf doing it, not us)
|
|
compiler = check_prog('_%s' % var, what=what, progs=default_compilers,
|
|
input=delayed_getattr(provided_compiler, 'compiler'),
|
|
paths=toolchain_search_path)
|
|
|
|
@depends(compiler, provided_compiler, compiler_wrapper, host_or_target)
|
|
@checking('whether %s can be used' % what, lambda x: bool(x))
|
|
@imports(_from='mozbuild.shellutil', _import='quote')
|
|
def valid_compiler(compiler, provided_compiler, compiler_wrapper,
|
|
host_or_target):
|
|
wrapper = list(compiler_wrapper or ())
|
|
if provided_compiler:
|
|
provided_wrapper = list(provided_compiler.wrapper)
|
|
# When doing a subconfigure, the compiler is set by old-configure
|
|
# and it contains the wrappers from --with-compiler-wrapper and
|
|
# --with-ccache.
|
|
if provided_wrapper[:len(wrapper)] == wrapper:
|
|
provided_wrapper = provided_wrapper[len(wrapper):]
|
|
wrapper.extend(provided_wrapper)
|
|
flags = provided_compiler.flags
|
|
else:
|
|
flags = []
|
|
|
|
# Ideally, we'd always use the absolute path, but unfortunately, on
|
|
# Windows, the compiler is very often in a directory containing spaces.
|
|
# Unfortunately, due to the way autoconf does its compiler tests with
|
|
# eval, that doesn't work out. So in that case, check that the
|
|
# compiler can still be found in $PATH, and use the file name instead
|
|
# of the full path.
|
|
if quote(compiler) != compiler:
|
|
full_path = os.path.abspath(compiler)
|
|
compiler = os.path.basename(compiler)
|
|
found_compiler = find_program(compiler)
|
|
if not found_compiler:
|
|
die('%s is not in your $PATH'
|
|
% quote(os.path.dirname(full_path)))
|
|
if os.path.normcase(find_program(compiler)) != os.path.normcase(
|
|
full_path):
|
|
die('Found `%s` before `%s` in your $PATH. '
|
|
'Please reorder your $PATH.',
|
|
quote(os.path.dirname(found_compiler)),
|
|
quote(os.path.dirname(full_path)))
|
|
|
|
info = check_compiler(wrapper + [compiler] + flags, language,
|
|
host_or_target)
|
|
|
|
# Check that the additional flags we got are enough to not require any
|
|
# more flags.
|
|
if info.flags:
|
|
flags += info.flags
|
|
info = check_compiler(wrapper + [compiler] + flags, language,
|
|
host_or_target)
|
|
|
|
if not info.target_cpu or info.target_cpu != host_or_target.cpu:
|
|
raise FatalCheckError(
|
|
'%s %s compiler target CPU (%s) does not match --%s CPU (%s)'
|
|
% (host_or_target_str.capitalize(), language,
|
|
info.target_cpu or 'unknown', host_or_target_str,
|
|
host_or_target.raw_cpu))
|
|
|
|
if not info.target_kernel or (info.target_kernel !=
|
|
host_or_target.kernel):
|
|
raise FatalCheckError(
|
|
'%s %s compiler target kernel (%s) does not match --%s kernel (%s)'
|
|
% (host_or_target_str.capitalize(), language,
|
|
info.target_kernel or 'unknown', host_or_target_str,
|
|
host_or_target.kernel))
|
|
|
|
if not info.target_endianness or (info.target_endianness !=
|
|
host_or_target.endianness):
|
|
raise FatalCheckError(
|
|
'%s %s compiler target endianness (%s) does not match --%s '
|
|
'endianness (%s)'
|
|
% (host_or_target_str.capitalize(), language,
|
|
info.target_endianness or 'unknown', host_or_target_str,
|
|
host_or_target.endianness))
|
|
|
|
if info.flags:
|
|
raise FatalCheckError(
|
|
'Unknown compiler or compiler not supported.')
|
|
|
|
# Compiler version checks
|
|
# ===================================================
|
|
# Check the compiler version here instead of in `compiler_version` so
|
|
# that the `checking` message doesn't pretend the compiler can be used
|
|
# to then bail out one line later.
|
|
if info.type == 'gcc' and info.version < '4.9.0':
|
|
raise FatalCheckError(
|
|
'Only GCC 4.9 or newer is supported (found version %s).'
|
|
% info.version)
|
|
|
|
# If you want to bump the version check here search for
|
|
# __cpp_static_assert above, and see the associated comment.
|
|
if info.type == 'clang' and not info.version:
|
|
raise FatalCheckError(
|
|
'Only clang/llvm 3.6 or newer is supported.')
|
|
|
|
if info.type == 'msvc':
|
|
if info.version < '19.00.24213':
|
|
raise FatalCheckError(
|
|
'This version (%s) of the MSVC compiler is not '
|
|
'supported.\n'
|
|
'You must install Visual C++ 2015 Update 3 or newer in '
|
|
'order to build.\n'
|
|
'See https://developer.mozilla.org/en/'
|
|
'Windows_Build_Prerequisites' % info.version)
|
|
|
|
return namespace(
|
|
wrapper=wrapper,
|
|
compiler=compiler,
|
|
flags=flags,
|
|
type=info.type,
|
|
version=info.version,
|
|
language=language,
|
|
)
|
|
|
|
@depends(valid_compiler)
|
|
@checking('%s version' % what)
|
|
def compiler_version(compiler):
|
|
return compiler.version
|
|
|
|
if language == 'C++':
|
|
@depends(valid_compiler, c_compiler)
|
|
def valid_compiler(compiler, c_compiler):
|
|
if compiler.type != c_compiler.type:
|
|
die('The %s C compiler is %s, while the %s C++ compiler is '
|
|
'%s. Need to use the same compiler suite.',
|
|
host_or_target_str, c_compiler.type,
|
|
host_or_target_str, compiler.type)
|
|
|
|
if compiler.version != c_compiler.version:
|
|
die('The %s C compiler is version %s, while the %s C++ '
|
|
'compiler is version %s. Need to use the same compiler '
|
|
'version.',
|
|
host_or_target_str, c_compiler.version,
|
|
host_or_target_str, compiler.version)
|
|
return compiler
|
|
|
|
# Set CC/CXX/HOST_CC/HOST_CXX for old-configure, which needs the wrapper
|
|
# and the flags that were part of the user input for those variables to
|
|
# be provided.
|
|
add_old_configure_assignment(var, depends_if(valid_compiler)(
|
|
lambda x: list(x.wrapper) + [x.compiler] + list(x.flags)))
|
|
|
|
# Set CC_TYPE/CC_VERSION/HOST_CC_TYPE/HOST_CC_VERSION to allow
|
|
# old-configure to do some of its still existing checks.
|
|
if language == 'C':
|
|
set_config(
|
|
'%s_TYPE' % var, delayed_getattr(valid_compiler, 'type'))
|
|
add_old_configure_assignment(
|
|
'%s_TYPE' % var, delayed_getattr(valid_compiler, 'type'))
|
|
add_old_configure_assignment(
|
|
'%s_VERSION' % var, delayed_getattr(valid_compiler, 'version'))
|
|
|
|
valid_compiler = compiler_class(valid_compiler)
|
|
|
|
def compiler_error():
|
|
raise FatalCheckError('Failed compiling a simple %s source with %s'
|
|
% (language, what))
|
|
|
|
valid_compiler.try_compile(check_msg='%s works' % what,
|
|
onerror=compiler_error)
|
|
|
|
|
|
# Set CPP/CXXCPP for both the build system and old-configure. We don't
|
|
# need to check this works for preprocessing, because we already relied
|
|
# on $CC -E/$CXX -E doing preprocessing work to validate the compiler
|
|
# in the first place.
|
|
if host_or_target == target:
|
|
pp_var = {
|
|
'C': 'CPP',
|
|
'C++': 'CXXCPP',
|
|
}[language]
|
|
|
|
preprocessor = depends_if(valid_compiler)(
|
|
lambda x: list(x.wrapper) + [x.compiler, '-E'] + list(x.flags))
|
|
|
|
set_config(pp_var, preprocessor)
|
|
add_old_configure_assignment(pp_var, preprocessor)
|
|
|
|
return valid_compiler
|
|
|
|
|
|
c_compiler = compiler('C', target)
|
|
cxx_compiler = compiler('C++', target, c_compiler=c_compiler)
|
|
host_c_compiler = compiler('C', host, other_compiler=c_compiler)
|
|
host_cxx_compiler = compiler('C++', host, c_compiler=host_c_compiler,
|
|
other_compiler=cxx_compiler,
|
|
other_c_compiler=c_compiler)
|
|
|
|
# Generic compiler-based conditions.
|
|
non_msvc_compiler = depends(c_compiler)(lambda info: info.type != 'msvc')
|
|
building_with_gcc = depends(c_compiler)(lambda info: info.type == 'gcc')
|
|
|
|
include('compile-checks.configure')
|
|
|
|
@depends(have_64_bit,
|
|
try_compile(body='static_assert(sizeof(void *) == 8, "")',
|
|
check_msg='for 64-bit OS'))
|
|
def check_have_64_bit(have_64_bit, compiler_have_64_bit):
|
|
if have_64_bit != compiler_have_64_bit:
|
|
configure_error('The target compiler does not agree with configure '
|
|
'about the target bitness.')
|
|
|
|
|
|
@depends(c_compiler)
|
|
def default_debug_flags(compiler_info):
|
|
# Debug info is ON by default.
|
|
if compiler_info.type in ('msvc', 'clang-cl'):
|
|
return '-Zi'
|
|
return '-g'
|
|
|
|
option(env='MOZ_DEBUG_FLAGS',
|
|
nargs=1,
|
|
help='Debug compiler flags')
|
|
|
|
imply_option('--enable-debug-symbols',
|
|
depends_if('--enable-debug')(lambda v: v))
|
|
|
|
js_option('--enable-debug-symbols',
|
|
nargs='?',
|
|
default=True,
|
|
help='Enable debug symbols using the given compiler flags')
|
|
|
|
set_config('MOZ_DEBUG_SYMBOLS',
|
|
depends_if('--enable-debug-symbols')(lambda _: True))
|
|
|
|
@depends('MOZ_DEBUG_FLAGS', '--enable-debug-symbols', default_debug_flags)
|
|
def debug_flags(env_debug_flags, enable_debug_flags, default_debug_flags):
|
|
# If MOZ_DEBUG_FLAGS is set, and --enable-debug-symbols is set to a value,
|
|
# --enable-debug-symbols takes precedence. Note, the value of
|
|
# --enable-debug-symbols may be implied by --enable-debug.
|
|
if len(enable_debug_flags):
|
|
return enable_debug_flags[0]
|
|
if env_debug_flags:
|
|
return env_debug_flags[0]
|
|
return default_debug_flags
|
|
|
|
set_config('MOZ_DEBUG_FLAGS', debug_flags)
|
|
add_old_configure_assignment('MOZ_DEBUG_FLAGS', debug_flags)
|
|
|
|
# Some standard library headers (notably bionic on Android) declare standard
|
|
# functions (e.g. getchar()) and also #define macros for those standard
|
|
# functions. libc++ deals with this by doing something like the following
|
|
# (explanatory comments added):
|
|
#
|
|
# #ifdef FUNC
|
|
# // Capture the definition of FUNC.
|
|
# inline _LIBCPP_INLINE_VISIBILITY int __libcpp_FUNC(...) { return FUNC(...); }
|
|
# #undef FUNC
|
|
# // Use a real inline definition.
|
|
# inline _LIBCPP_INLINE_VISIBILITY int FUNC(...) { return _libcpp_FUNC(...); }
|
|
# #endif
|
|
#
|
|
# _LIBCPP_INLINE_VISIBILITY is typically defined as:
|
|
#
|
|
# __attribute__((__visibility__("hidden"), __always_inline__))
|
|
#
|
|
# Unfortunately, this interacts badly with our system header wrappers, as the:
|
|
#
|
|
# #pragma GCC visibility push(default)
|
|
#
|
|
# that they do prior to including the actual system header is treated by the
|
|
# compiler as an explicit declaration of visibility on every function declared
|
|
# in the header. Therefore, when the libc++ code above is encountered, it is
|
|
# as though the compiler has effectively seen:
|
|
#
|
|
# int FUNC(...) __attribute__((__visibility__("default")));
|
|
# int FUNC(...) __attribute__((__visibility__("hidden")));
|
|
#
|
|
# and the compiler complains about the mismatched visibility declarations.
|
|
#
|
|
# However, libc++ will only define _LIBCPP_INLINE_VISIBILITY if there is no
|
|
# existing definition. We can therefore define it to the empty string (since
|
|
# we are properly managing visibility ourselves) and avoid this whole mess.
|
|
# Note that we don't need to do this with gcc, as libc++ detects gcc and
|
|
# effectively does the same thing we are doing here.
|
|
@depends(c_compiler, target)
|
|
def libcxx_inline_visibility(c_compiler, target):
|
|
if c_compiler.type == 'clang' and target.os == 'Android':
|
|
return ''
|
|
|
|
set_define('_LIBCPP_INLINE_VISIBILITY', libcxx_inline_visibility)
|
|
set_define('_LIBCPP_INLINE_VISIBILITY_EXCEPT_GCC49', libcxx_inline_visibility)
|
|
|
|
@depends(c_compiler, target, check_build_environment)
|
|
def visibility_flags(c_compiler, target, env):
|
|
if target.os != 'WINNT':
|
|
if target.kernel == 'Darwin':
|
|
return ('-fvisibility=hidden', '-fvisibility-inlines-hidden')
|
|
return ('-I%s/system_wrappers' % os.path.join(env.dist),
|
|
'-include',
|
|
'%s/config/gcc_hidden.h' % env.topsrcdir)
|
|
|
|
@depends(target, visibility_flags)
|
|
def wrap_system_includes(target, visibility_flags):
|
|
if visibility_flags and target.kernel != 'Darwin':
|
|
return True
|
|
|
|
set_define('HAVE_VISIBILITY_HIDDEN_ATTRIBUTE',
|
|
depends(visibility_flags)(lambda v: bool(v) or None))
|
|
set_define('HAVE_VISIBILITY_ATTRIBUTE',
|
|
depends(visibility_flags)(lambda v: bool(v) or None))
|
|
set_config('WRAP_SYSTEM_INCLUDES', wrap_system_includes)
|
|
set_config('VISIBILITY_FLAGS', visibility_flags)
|
|
|
|
include('windows.configure')
|