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+# Copyright 2019 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.
+from __future__ import annotations
+
+"""Abstractions for the Elbrus family of compilers."""
+
+import os
+import typing as T
+import subprocess
+import re
+
+from .gnu import GnuLikeCompiler
+from .gnu import gnu_optimization_args
+from ...mesonlib import Popen_safe, OptionKey
+
+if T.TYPE_CHECKING:
+ from ...environment import Environment
+ from ...coredata import KeyedOptionDictType
+
+
+class ElbrusCompiler(GnuLikeCompiler):
+ # Elbrus compiler is nearly like GCC, but does not support
+ # PCH, LTO, sanitizers and color output as of version 1.21.x.
+
+ id = 'lcc'
+
+ def __init__(self) -> None:
+ super().__init__()
+ self.base_options = {OptionKey(o) for o in ['b_pgo', 'b_coverage', 'b_ndebug', 'b_staticpic', 'b_lundef', 'b_asneeded']}
+ default_warn_args = ['-Wall']
+ self.warn_args = {'0': [],
+ '1': default_warn_args,
+ '2': default_warn_args + ['-Wextra'],
+ '3': default_warn_args + ['-Wextra', '-Wpedantic'],
+ 'everything': default_warn_args + ['-Wextra', '-Wpedantic']}
+
+ # FIXME: use _build_wrapper to call this so that linker flags from the env
+ # get applied
+ def get_library_dirs(self, env: 'Environment', elf_class: T.Optional[int] = None) -> T.List[str]:
+ os_env = os.environ.copy()
+ os_env['LC_ALL'] = 'C'
+ stdo = Popen_safe(self.get_exelist(ccache=False) + ['--print-search-dirs'], env=os_env)[1]
+ for line in stdo.split('\n'):
+ if line.startswith('libraries:'):
+ # lcc does not include '=' in --print-search-dirs output. Also it could show nonexistent dirs.
+ libstr = line.split(' ', 1)[1]
+ return [os.path.realpath(p) for p in libstr.split(':') if os.path.exists(p)]
+ return []
+
+ def get_program_dirs(self, env: 'Environment') -> T.List[str]:
+ os_env = os.environ.copy()
+ os_env['LC_ALL'] = 'C'
+ stdo = Popen_safe(self.get_exelist(ccache=False) + ['--print-search-dirs'], env=os_env)[1]
+ for line in stdo.split('\n'):
+ if line.startswith('programs:'):
+ # lcc does not include '=' in --print-search-dirs output.
+ libstr = line.split(' ', 1)[1]
+ return [os.path.realpath(p) for p in libstr.split(':')]
+ return []
+
+ def get_default_include_dirs(self) -> T.List[str]:
+ os_env = os.environ.copy()
+ os_env['LC_ALL'] = 'C'
+ p = subprocess.Popen(self.get_exelist(ccache=False) + ['-xc', '-E', '-v', '-'], env=os_env, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ stderr = p.stderr.read().decode('utf-8', errors='replace')
+ includes = []
+ for line in stderr.split('\n'):
+ if line.lstrip().startswith('--sys_include'):
+ includes.append(re.sub(r'\s*\\$', '', re.sub(r'^\s*--sys_include\s*', '', line)))
+ return includes
+
+ def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+ return gnu_optimization_args[optimization_level]
+
+ def get_prelink_args(self, prelink_name: str, obj_list: T.List[str]) -> T.List[str]:
+ return ['-r', '-nodefaultlibs', '-nostartfiles', '-o', prelink_name] + obj_list
+
+ def get_pch_suffix(self) -> str:
+ # Actually it's not supported for now, but probably will be supported in future
+ return 'pch'
+
+ def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+ args = []
+ std = options[OptionKey('std', lang=self.language, machine=self.for_machine)]
+ if std.value != 'none':
+ args.append('-std=' + std.value)
+ return args
+
+ def openmp_flags(self) -> T.List[str]:
+ return ['-fopenmp']