Dylan Baker
5 years ago
parent
51b04204c9
commit
bc4438b34f
9 changed files with 92 additions and 68 deletions
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# Copyright 2019 The meson development team |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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|
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"""Abstractions for the LLVM/Clang compiler family.""" |
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import os |
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from .gnu import GnuLikeCompiler |
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from ..compilers import clike_optimization_args |
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from ... import mesonlib |
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clang_color_args = {'auto': ['-Xclang', '-fcolor-diagnostics'], |
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'always': ['-Xclang', '-fcolor-diagnostics'], |
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'never': ['-Xclang', '-fno-color-diagnostics'], |
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} |
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class ClangCompiler(GnuLikeCompiler): |
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def __init__(self, compiler_type): |
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super().__init__(compiler_type) |
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self.id = 'clang' |
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self.base_options.append('b_colorout') |
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if self.compiler_type.is_osx_compiler: |
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self.base_options.append('b_bitcode') |
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# All Clang backends can also do LLVM IR |
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self.can_compile_suffixes.add('ll') |
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def get_colorout_args(self, colortype): |
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return clang_color_args[colortype][:] |
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def get_optimization_args(self, optimization_level): |
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return clike_optimization_args[optimization_level] |
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def get_pch_suffix(self): |
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return 'pch' |
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def get_pch_use_args(self, pch_dir, header): |
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# Workaround for Clang bug http://llvm.org/bugs/show_bug.cgi?id=15136 |
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# This flag is internal to Clang (or at least not documented on the man page) |
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# so it might change semantics at any time. |
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return ['-include-pch', os.path.join(pch_dir, self.get_pch_name(header))] |
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def has_multi_arguments(self, args, env): |
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myargs = ['-Werror=unknown-warning-option', '-Werror=unused-command-line-argument'] |
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if mesonlib.version_compare(self.version, '>=3.6.0'): |
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myargs.append('-Werror=ignored-optimization-argument') |
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return super().has_multi_arguments( |
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myargs + args, |
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env) |
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def has_function(self, funcname, prefix, env, *, extra_args=None, dependencies=None): |
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if extra_args is None: |
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extra_args = [] |
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# Starting with XCode 8, we need to pass this to force linker |
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# visibility to obey OS X/iOS/tvOS minimum version targets with |
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# -mmacosx-version-min, -miphoneos-version-min, -mtvos-version-min etc. |
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# https://github.com/Homebrew/homebrew-core/issues/3727 |
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if self.compiler_type.is_osx_compiler and mesonlib.version_compare(self.version, '>=8.0'): |
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extra_args.append('-Wl,-no_weak_imports') |
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return super().has_function(funcname, prefix, env, extra_args=extra_args, |
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dependencies=dependencies) |
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|
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def openmp_flags(self): |
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if mesonlib.version_compare(self.version, '>=3.8.0'): |
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return ['-fopenmp'] |
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elif mesonlib.version_compare(self.version, '>=3.7.0'): |
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return ['-fopenmp=libomp'] |
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else: |
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# Shouldn't work, but it'll be checked explicitly in the OpenMP dependency. |
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return [] |
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