| # Copyright 2012-2017 The Meson development team |
| |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| import functools |
| import os.path |
| |
| from .. import coredata |
| from .. import mlog |
| from ..mesonlib import MesonException, version_compare |
| |
| from .c import CCompiler, VisualStudioCCompiler, ClangClCCompiler |
| from .compilers import ( |
| gnu_winlibs, |
| msvc_winlibs, |
| ClangCompiler, |
| GnuCompiler, |
| ElbrusCompiler, |
| IntelCompiler, |
| ArmCompiler, |
| ArmclangCompiler, |
| CcrxCompiler, |
| ) |
| from .c_function_attributes import CXX_FUNC_ATTRIBUTES |
| |
| class CPPCompiler(CCompiler): |
| |
| @classmethod |
| def attribute_check_func(cls, name): |
| return CXX_FUNC_ATTRIBUTES.get(name, super().attribute_check_func(name)) |
| |
| def __init__(self, exelist, version, is_cross, exe_wrap, **kwargs): |
| # If a child ObjCPP class has already set it, don't set it ourselves |
| if not hasattr(self, 'language'): |
| self.language = 'cpp' |
| CCompiler.__init__(self, exelist, version, is_cross, exe_wrap, **kwargs) |
| |
| def get_display_language(self): |
| return 'C++' |
| |
| def get_no_stdinc_args(self): |
| return ['-nostdinc++'] |
| |
| def sanity_check(self, work_dir, environment): |
| code = 'class breakCCompiler;int main(int argc, char **argv) { return 0; }\n' |
| return self.sanity_check_impl(work_dir, environment, 'sanitycheckcpp.cc', code) |
| |
| def get_compiler_check_args(self): |
| # -fpermissive allows non-conforming code to compile which is necessary |
| # for many C++ checks. Particularly, the has_header_symbol check is |
| # too strict without this and always fails. |
| return super().get_compiler_check_args() + ['-fpermissive'] |
| |
| def has_header_symbol(self, hname, symbol, prefix, env, *, extra_args=None, dependencies=None): |
| # Check if it's a C-like symbol |
| if super().has_header_symbol(hname, symbol, prefix, env, |
| extra_args=extra_args, |
| dependencies=dependencies): |
| return True |
| # Check if it's a class or a template |
| if extra_args is None: |
| extra_args = [] |
| fargs = {'prefix': prefix, 'header': hname, 'symbol': symbol} |
| t = '''{prefix} |
| #include <{header}> |
| using {symbol}; |
| int main () {{ return 0; }}''' |
| return self.compiles(t.format(**fargs), env, extra_args=extra_args, |
| dependencies=dependencies) |
| |
| def _test_cpp_std_arg(self, cpp_std_value): |
| # Test whether the compiler understands a -std=XY argument |
| assert(cpp_std_value.startswith('-std=')) |
| |
| # This test does not use has_multi_arguments() for two reasons: |
| # 1. has_multi_arguments() requires an env argument, which the compiler |
| # object does not have at this point. |
| # 2. even if it did have an env object, that might contain another more |
| # recent -std= argument, which might lead to a cascaded failure. |
| CPP_TEST = 'int i = static_cast<int>(0);' |
| with self.compile(code=CPP_TEST, extra_args=[cpp_std_value], mode='compile') as p: |
| if p.returncode == 0: |
| mlog.debug('Compiler accepts {}:'.format(cpp_std_value), 'YES') |
| return True |
| else: |
| mlog.debug('Compiler accepts {}:'.format(cpp_std_value), 'NO') |
| return False |
| |
| @functools.lru_cache() |
| def _find_best_cpp_std(self, cpp_std): |
| # The initial version mapping approach to make falling back |
| # from '-std=c++14' to '-std=c++1y' was too brittle. For instance, |
| # Apple's Clang uses a different versioning scheme to upstream LLVM, |
| # making the whole detection logic awfully brittle. Instead, let's |
| # just see if feeding GCC or Clang our '-std=' setting works, and |
| # if not, try the fallback argument. |
| CPP_FALLBACKS = { |
| 'c++11': 'c++0x', |
| 'gnu++11': 'gnu++0x', |
| 'c++14': 'c++1y', |
| 'gnu++14': 'gnu++1y', |
| 'c++17': 'c++1z', |
| 'gnu++17': 'gnu++1z' |
| } |
| |
| # Currently, remapping is only supported for Clang and GCC |
| assert(self.id in frozenset(['clang', 'gcc'])) |
| |
| if cpp_std not in CPP_FALLBACKS: |
| # 'c++03' and 'c++98' don't have fallback types |
| return '-std=' + cpp_std |
| |
| for i in (cpp_std, CPP_FALLBACKS[cpp_std]): |
| cpp_std_value = '-std=' + i |
| if self._test_cpp_std_arg(cpp_std_value): |
| return cpp_std_value |
| |
| raise MesonException('C++ Compiler does not support -std={}'.format(cpp_std)) |
| |
| |
| class ClangCPPCompiler(ClangCompiler, CPPCompiler): |
| def __init__(self, exelist, version, compiler_type, is_cross, exe_wrapper=None, **kwargs): |
| CPPCompiler.__init__(self, exelist, version, is_cross, exe_wrapper, **kwargs) |
| ClangCompiler.__init__(self, compiler_type) |
| default_warn_args = ['-Wall', '-Winvalid-pch', '-Wnon-virtual-dtor'] |
| self.warn_args = {'1': default_warn_args, |
| '2': default_warn_args + ['-Wextra'], |
| '3': default_warn_args + ['-Wextra', '-Wpedantic']} |
| |
| def get_options(self): |
| opts = CPPCompiler.get_options(self) |
| opts.update({'cpp_std': coredata.UserComboOption('cpp_std', 'C++ language standard to use', |
| ['none', 'c++98', 'c++03', 'c++11', 'c++14', 'c++17', 'c++1z', 'c++2a', |
| 'gnu++11', 'gnu++14', 'gnu++17', 'gnu++1z', 'gnu++2a'], |
| 'none')}) |
| return opts |
| |
| def get_option_compile_args(self, options): |
| args = [] |
| std = options['cpp_std'] |
| if std.value != 'none': |
| args.append(self._find_best_cpp_std(std.value)) |
| return args |
| |
| def get_option_link_args(self, options): |
| return [] |
| |
| def language_stdlib_only_link_flags(self): |
| return ['-lstdc++'] |
| |
| |
| class ArmclangCPPCompiler(ArmclangCompiler, CPPCompiler): |
| def __init__(self, exelist, version, compiler_type, is_cross, exe_wrapper=None, **kwargs): |
| CPPCompiler.__init__(self, exelist, version, is_cross, exe_wrapper, **kwargs) |
| ArmclangCompiler.__init__(self, compiler_type) |
| default_warn_args = ['-Wall', '-Winvalid-pch', '-Wnon-virtual-dtor'] |
| self.warn_args = {'1': default_warn_args, |
| '2': default_warn_args + ['-Wextra'], |
| '3': default_warn_args + ['-Wextra', '-Wpedantic']} |
| |
| def get_options(self): |
| opts = CPPCompiler.get_options(self) |
| opts.update({'cpp_std': coredata.UserComboOption('cpp_std', 'C++ language standard to use', |
| ['none', 'c++98', 'c++03', 'c++11', 'c++14', 'c++17', |
| 'gnu++98', 'gnu++03', 'gnu++11', 'gnu++14', 'gnu++17'], |
| 'none')}) |
| return opts |
| |
| def get_option_compile_args(self, options): |
| args = [] |
| std = options['cpp_std'] |
| if std.value != 'none': |
| args.append('-std=' + std.value) |
| return args |
| |
| def get_option_link_args(self, options): |
| return [] |
| |
| |
| class GnuCPPCompiler(GnuCompiler, CPPCompiler): |
| def __init__(self, exelist, version, compiler_type, is_cross, exe_wrap, defines, **kwargs): |
| CPPCompiler.__init__(self, exelist, version, is_cross, exe_wrap, **kwargs) |
| GnuCompiler.__init__(self, compiler_type, defines) |
| default_warn_args = ['-Wall', '-Winvalid-pch', '-Wnon-virtual-dtor'] |
| self.warn_args = {'1': default_warn_args, |
| '2': default_warn_args + ['-Wextra'], |
| '3': default_warn_args + ['-Wextra', '-Wpedantic']} |
| |
| def get_options(self): |
| opts = CPPCompiler.get_options(self) |
| opts.update({'cpp_std': coredata.UserComboOption('cpp_std', 'C++ language standard to use', |
| ['none', 'c++98', 'c++03', 'c++11', 'c++14', 'c++17', 'c++1z', 'c++2a', |
| 'gnu++03', 'gnu++11', 'gnu++14', 'gnu++17', 'gnu++1z', 'gnu++2a'], |
| 'none'), |
| 'cpp_debugstl': coredata.UserBooleanOption('cpp_debugstl', |
| 'STL debug mode', |
| False)}) |
| if self.compiler_type.is_windows_compiler: |
| opts.update({ |
| 'cpp_winlibs': coredata.UserArrayOption('cpp_winlibs', 'Standard Win libraries to link against', |
| gnu_winlibs), }) |
| return opts |
| |
| def get_option_compile_args(self, options): |
| args = [] |
| std = options['cpp_std'] |
| if std.value != 'none': |
| args.append(self._find_best_cpp_std(std.value)) |
| if options['cpp_debugstl'].value: |
| args.append('-D_GLIBCXX_DEBUG=1') |
| return args |
| |
| def get_option_link_args(self, options): |
| if self.compiler_type.is_windows_compiler: |
| return options['cpp_winlibs'].value[:] |
| return [] |
| |
| def get_pch_use_args(self, pch_dir, header): |
| return ['-fpch-preprocess', '-include', os.path.basename(header)] |
| |
| def language_stdlib_only_link_flags(self): |
| return ['-lstdc++'] |
| |
| |
| class ElbrusCPPCompiler(GnuCPPCompiler, ElbrusCompiler): |
| def __init__(self, exelist, version, compiler_type, is_cross, exe_wrapper=None, defines=None, **kwargs): |
| GnuCPPCompiler.__init__(self, exelist, version, compiler_type, is_cross, exe_wrapper, defines, **kwargs) |
| ElbrusCompiler.__init__(self, compiler_type, defines) |
| |
| # It does not support c++/gnu++ 17 and 1z, but still does support 0x, 1y, and gnu++98. |
| def get_options(self): |
| opts = CPPCompiler.get_options(self) |
| opts['cpp_std'] = coredata.UserComboOption('cpp_std', 'C++ language standard to use', |
| ['none', 'c++98', 'c++03', 'c++0x', 'c++11', 'c++14', 'c++1y', |
| 'gnu++98', 'gnu++03', 'gnu++0x', 'gnu++11', 'gnu++14', 'gnu++1y'], |
| 'none') |
| return opts |
| |
| # Elbrus C++ compiler does not have lchmod, but there is only linker warning, not compiler error. |
| # So we should explicitly fail at this case. |
| def has_function(self, funcname, prefix, env, *, extra_args=None, dependencies=None): |
| if funcname == 'lchmod': |
| return False |
| else: |
| return super().has_function(funcname, prefix, env, |
| extra_args=extra_args, |
| dependencies=dependencies) |
| |
| |
| class IntelCPPCompiler(IntelCompiler, CPPCompiler): |
| def __init__(self, exelist, version, compiler_type, is_cross, exe_wrap, **kwargs): |
| CPPCompiler.__init__(self, exelist, version, is_cross, exe_wrap, **kwargs) |
| IntelCompiler.__init__(self, compiler_type) |
| self.lang_header = 'c++-header' |
| default_warn_args = ['-Wall', '-w3', '-diag-disable:remark', |
| '-Wpch-messages', '-Wnon-virtual-dtor'] |
| self.warn_args = {'1': default_warn_args, |
| '2': default_warn_args + ['-Wextra'], |
| '3': default_warn_args + ['-Wextra']} |
| |
| def get_options(self): |
| opts = CPPCompiler.get_options(self) |
| # Every Unix compiler under the sun seems to accept -std=c++03, |
| # with the exception of ICC. Instead of preventing the user from |
| # globally requesting C++03, we transparently remap it to C++98 |
| c_stds = ['c++98', 'c++03'] |
| g_stds = ['gnu++98', 'gnu++03'] |
| if version_compare(self.version, '>=15.0.0'): |
| c_stds += ['c++11', 'c++14'] |
| g_stds += ['gnu++11'] |
| if version_compare(self.version, '>=16.0.0'): |
| c_stds += ['c++17'] |
| if version_compare(self.version, '>=17.0.0'): |
| g_stds += ['gnu++14'] |
| opts.update({'cpp_std': coredata.UserComboOption('cpp_std', 'C++ language standard to use', |
| ['none'] + c_stds + g_stds, |
| 'none'), |
| 'cpp_debugstl': coredata.UserBooleanOption('cpp_debugstl', |
| 'STL debug mode', |
| False)}) |
| return opts |
| |
| def get_option_compile_args(self, options): |
| args = [] |
| std = options['cpp_std'] |
| if std.value != 'none': |
| remap_cpp03 = { |
| 'c++03': 'c++98', |
| 'gnu++03': 'gnu++98' |
| } |
| args.append('-std=' + remap_cpp03.get(std.value, std.value)) |
| if options['cpp_debugstl'].value: |
| args.append('-D_GLIBCXX_DEBUG=1') |
| return args |
| |
| def get_option_link_args(self, options): |
| return [] |
| |
| |
| class VisualStudioCPPCompiler(VisualStudioCCompiler, CPPCompiler): |
| def __init__(self, exelist, version, is_cross, exe_wrap, is_64): |
| CPPCompiler.__init__(self, exelist, version, is_cross, exe_wrap) |
| VisualStudioCCompiler.__init__(self, exelist, version, is_cross, exe_wrap, is_64) |
| self.base_options = ['b_pch', 'b_vscrt'] # FIXME add lto, pgo and the like |
| |
| def get_options(self): |
| cpp_stds = ['none', 'c++11', 'vc++11'] |
| if self.id == 'clang-cl': |
| cpp_stds.extend(['c++14', 'vc++14', 'c++17', 'vc++17', 'c++latest']) |
| else: |
| # Visual Studio 2015 and later |
| if version_compare(self.version, '>=19'): |
| cpp_stds.extend(['c++14', 'vc++14', 'c++latest', 'vc++latest']) |
| # Visual Studio 2017 and later |
| if version_compare(self.version, '>=19.11'): |
| cpp_stds.extend(['c++17', 'vc++17']) |
| |
| opts = CPPCompiler.get_options(self) |
| opts.update({'cpp_eh': coredata.UserComboOption('cpp_eh', |
| 'C++ exception handling type.', |
| ['none', 'a', 's', 'sc'], |
| 'sc'), |
| 'cpp_std': coredata.UserComboOption('cpp_std', |
| 'C++ language standard to use', |
| cpp_stds, |
| 'none'), |
| 'cpp_winlibs': coredata.UserArrayOption('cpp_winlibs', |
| 'Windows libs to link against.', |
| msvc_winlibs)}) |
| return opts |
| |
| def get_option_compile_args(self, options): |
| args = [] |
| |
| eh = options['cpp_eh'] |
| if eh.value != 'none': |
| args.append('/EH' + eh.value) |
| |
| vc_version_map = { |
| 'none': (True, None), |
| 'vc++11': (True, 11), |
| 'vc++14': (True, 14), |
| 'vc++17': (True, 17), |
| 'c++11': (False, 11), |
| 'c++14': (False, 14), |
| 'c++17': (False, 17)} |
| |
| permissive, ver = vc_version_map[options['cpp_std'].value] |
| |
| if ver is None: |
| pass |
| elif ver == 11: |
| # Note: there is no explicit flag for supporting C++11; we attempt to do the best we can |
| # which means setting the C++ standard version to C++14, in compilers that support it |
| # (i.e., after VS2015U3) |
| # if one is using anything before that point, one cannot set the standard. |
| if self.id == 'clang-cl' or version_compare(self.version, '>=19.00.24210'): |
| mlog.warning('MSVC does not support C++11; ' |
| 'attempting best effort; setting the standard to C++14') |
| args.append('/std:c++14') |
| else: |
| mlog.warning('This version of MSVC does not support cpp_std arguments') |
| else: |
| args.append('/std:c++{}'.format(ver)) |
| |
| if not permissive and version_compare(self.version, '>=19.11'): |
| args.append('/permissive-') |
| |
| return args |
| |
| def get_option_link_args(self, options): |
| return options['cpp_winlibs'].value[:] |
| |
| def get_compiler_check_args(self): |
| # Visual Studio C++ compiler doesn't support -fpermissive, |
| # so just use the plain C args. |
| return VisualStudioCCompiler.get_compiler_check_args(self) |
| |
| class ClangClCPPCompiler(VisualStudioCPPCompiler, ClangClCCompiler): |
| def __init__(self, exelist, version, is_cross, exe_wrap, is_64): |
| VisualStudioCPPCompiler.__init__(self, exelist, version, is_cross, exe_wrap, is_64) |
| self.id = 'clang-cl' |
| |
| class ArmCPPCompiler(ArmCompiler, CPPCompiler): |
| def __init__(self, exelist, version, compiler_type, is_cross, exe_wrap=None, **kwargs): |
| CPPCompiler.__init__(self, exelist, version, is_cross, exe_wrap, **kwargs) |
| ArmCompiler.__init__(self, compiler_type) |
| |
| def get_options(self): |
| opts = CPPCompiler.get_options(self) |
| opts.update({'cpp_std': coredata.UserComboOption('cpp_std', 'C++ language standard to use', |
| ['none', 'c++03', 'c++11'], |
| 'none')}) |
| return opts |
| |
| def get_option_compile_args(self, options): |
| args = [] |
| std = options['cpp_std'] |
| if std.value == 'c++11': |
| args.append('--cpp11') |
| elif std.value == 'c++03': |
| args.append('--cpp') |
| return args |
| |
| def get_option_link_args(self, options): |
| return [] |
| |
| def get_compiler_check_args(self): |
| return [] |
| |
| |
| class CcrxCPPCompiler(CcrxCompiler, CPPCompiler): |
| def __init__(self, exelist, version, compiler_type, is_cross, exe_wrap=None, **kwargs): |
| CPPCompiler.__init__(self, exelist, version, is_cross, exe_wrap, **kwargs) |
| CcrxCompiler.__init__(self, compiler_type) |
| |
| # Override CCompiler.get_always_args |
| def get_always_args(self): |
| return ['-nologo', '-lang=cpp'] |
| |
| def get_option_compile_args(self, options): |
| return [] |
| |
| def get_compile_only_args(self): |
| return [] |
| |
| def get_output_args(self, target): |
| return ['-output=obj=%s' % target] |
| |
| def get_linker_output_args(self, outputname): |
| return ['-output=%s' % outputname] |
| |
| def get_option_link_args(self, options): |
| return [] |
| |
| def get_compiler_check_args(self): |
| return [] |
