1 files changed, 546 insertions, 0 deletions
diff --git a/mesonbuild/compilers/fortran.py b/mesonbuild/compilers/fortran.py
new file mode 100644
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+++ b/mesonbuild/compilers/fortran.py
@@ -0,0 +1,546 @@
+# 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.
+from __future__ import annotations
+
+import typing as T
+import os
+
+from .. import coredata
+from .compilers import (
+    clike_debug_args,
+    Compiler,
+)
+from .mixins.clike import CLikeCompiler
+from .mixins.gnu import (
+    GnuCompiler, gnulike_buildtype_args, gnu_optimization_args
+)
+from .mixins.intel import IntelGnuLikeCompiler, IntelVisualStudioLikeCompiler
+from .mixins.clang import ClangCompiler
+from .mixins.elbrus import ElbrusCompiler
+from .mixins.pgi import PGICompiler
+
+from mesonbuild.mesonlib import (
+    version_compare, MesonException,
+    LibType, OptionKey,
+)
+
+if T.TYPE_CHECKING:
+    from ..coredata import MutableKeyedOptionDictType, KeyedOptionDictType
+    from ..dependencies import Dependency
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+    from ..mesonlib import MachineChoice
+    from ..programs import ExternalProgram
+    from .compilers import CompileCheckMode
+
+
+class FortranCompiler(CLikeCompiler, Compiler):
+
+    language = 'fortran'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        Compiler.__init__(self, [], exelist, version, for_machine, info,
+                          is_cross=is_cross, full_version=full_version, linker=linker)
+        CLikeCompiler.__init__(self, exe_wrapper)
+
+    def has_function(self, funcname: str, prefix: str, env: 'Environment', *,
+                     extra_args: T.Optional[T.List[str]] = None,
+                     dependencies: T.Optional[T.List['Dependency']] = None) -> T.Tuple[bool, bool]:
+        raise MesonException('Fortran does not have "has_function" capability.\n'
+                             'It is better to test if a Fortran capability is working like:\n\n'
+                             "meson.get_compiler('fortran').links('block; end block; end program')\n\n"
+                             'that example is to see if the compiler has Fortran 2008 Block element.')
+
+    def _get_basic_compiler_args(self, env: 'Environment', mode: CompileCheckMode) -> T.Tuple[T.List[str], T.List[str]]:
+        cargs = env.coredata.get_external_args(self.for_machine, self.language)
+        largs = env.coredata.get_external_link_args(self.for_machine, self.language)
+        return cargs, largs
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        source_name = 'sanitycheckf.f90'
+        code = 'program main; print *, "Fortran compilation is working."; end program\n'
+        return self._sanity_check_impl(work_dir, environment, source_name, code)
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return gnulike_buildtype_args[buildtype]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return gnu_optimization_args[optimization_level]
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-cpp'] + super().get_preprocess_only_args()
+
+    def get_module_incdir_args(self) -> T.Tuple[str, ...]:
+        return ('-I', )
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-module', path]
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+    def module_name_to_filename(self, module_name: str) -> str:
+        if '_' in module_name:  # submodule
+            s = module_name.lower()
+            if self.id in {'gcc', 'intel', 'intel-cl'}:
+                filename = s.replace('_', '@') + '.smod'
+            elif self.id in {'pgi', 'flang'}:
+                filename = s.replace('_', '-') + '.mod'
+            else:
+                filename = s + '.mod'
+        else:  # module
+            filename = module_name.lower() + '.mod'
+
+        return filename
+
+    def find_library(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                     libtype: LibType = LibType.PREFER_SHARED) -> T.Optional[T.List[str]]:
+        code = 'stop; end program'
+        return self._find_library_impl(libname, env, extra_dirs, code, libtype)
+
+    def has_multi_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return self._has_multi_arguments(args, env, 'stop; end program')
+
+    def has_multi_link_arguments(self, args: T.List[str], env: 'Environment') -> T.Tuple[bool, bool]:
+        return self._has_multi_link_arguments(args, env, 'stop; end program')
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = super().get_options()
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts.update({
+            key: coredata.UserComboOption(
+                'Fortran language standard to use',
+                ['none'],
+                'none',
+            ),
+        })
+        return opts
+
+
+class GnuFortranCompiler(GnuCompiler, FortranCompiler):
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        GnuCompiler.__init__(self, defines)
+        default_warn_args = ['-Wall']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-Wpedantic', '-fimplicit-none'],
+                          'everything': default_warn_args + ['-Wextra', '-Wpedantic', '-fimplicit-none']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = FortranCompiler.get_options(self)
+        fortran_stds = ['legacy', 'f95', 'f2003']
+        if version_compare(self.version, '>=4.4.0'):
+            fortran_stds += ['f2008']
+        if version_compare(self.version, '>=8.0.0'):
+            fortran_stds += ['f2018']
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none'] + fortran_stds
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        if std.value != 'none':
+            args.append('-std=' + std.value)
+        return args
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        # Disabled until this is fixed:
+        # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62162
+        # return ['-cpp', '-MD', '-MQ', outtarget]
+        return []
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-J' + path]
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # We need to apply the search prefix here, as these link arguments may
+        # be passed to a different compiler with a different set of default
+        # search paths, such as when using Clang for C/C++ and gfortran for
+        # fortran,
+        search_dirs: T.List[str] = []
+        for d in self.get_compiler_dirs(env, 'libraries'):
+            search_dirs.append(f'-L{d}')
+        return search_dirs + ['-lgfortran', '-lm']
+
+    def has_header(self, hname: str, prefix: str, env: 'Environment', *,
+                   extra_args: T.Union[None, T.List[str], T.Callable[['CompileCheckMode'], T.List[str]]] = None,
+                   dependencies: T.Optional[T.List['Dependency']] = None,
+                   disable_cache: bool = False) -> T.Tuple[bool, bool]:
+        '''
+        Derived from mixins/clike.py:has_header, but without C-style usage of
+        __has_include which breaks with GCC-Fortran 10:
+        https://github.com/mesonbuild/meson/issues/7017
+        '''
+        code = f'{prefix}\n#include <{hname}>'
+        return self.compiles(code, env, extra_args=extra_args,
+                             dependencies=dependencies, mode='preprocess', disable_cache=disable_cache)
+
+
+class ElbrusFortranCompiler(ElbrusCompiler, FortranCompiler):
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 defines: T.Optional[T.Dict[str, str]] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine, is_cross,
+                                 info, exe_wrapper, linker=linker, full_version=full_version)
+        ElbrusCompiler.__init__(self)
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = FortranCompiler.get_options(self)
+        fortran_stds = ['f95', 'f2003', 'f2008', 'gnu', 'legacy', 'f2008ts']
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none'] + fortran_stds
+        return opts
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-J' + path]
+
+
+class G95FortranCompiler(FortranCompiler):
+
+    LINKER_PREFIX = '-Wl,'
+    id = 'g95'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        default_warn_args = ['-Wall']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-Wextra'],
+                          '3': default_warn_args + ['-Wextra', '-pedantic'],
+                          'everything': default_warn_args + ['-Wextra', '-pedantic']}
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-fmod=' + path]
+
+    def get_no_warn_args(self) -> T.List[str]:
+        # FIXME: Confirm that there's no compiler option to disable all warnings
+        return []
+
+
+class SunFortranCompiler(FortranCompiler):
+
+    LINKER_PREFIX = '-Wl,'
+    id = 'sun'
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-fpp']
+
+    def get_always_args(self) -> T.List[str]:
+        return []
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return []
+
+    def get_module_incdir_args(self) -> T.Tuple[str, ...]:
+        return ('-M', )
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-moddir=' + path]
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-xopenmp']
+
+
+class IntelFortranCompiler(IntelGnuLikeCompiler, FortranCompiler):
+
+    file_suffixes = ('f90', 'f', 'for', 'ftn', 'fpp', )
+    id = 'intel'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        # FIXME: Add support for OS X and Windows in detect_fortran_compiler so
+        # we are sent the type of compiler
+        IntelGnuLikeCompiler.__init__(self)
+        default_warn_args = ['-warn', 'general', '-warn', 'truncated_source']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['-warn', 'unused'],
+                          '3': ['-warn', 'all'],
+                          'everything': ['-warn', 'all']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = FortranCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'legacy', 'f95', 'f2003', 'f2008', 'f2018']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        stds = {'legacy': 'none', 'f95': 'f95', 'f2003': 'f03', 'f2008': 'f08', 'f2018': 'f18'}
+        if std.value != 'none':
+            args.append('-stand=' + stds[std.value])
+        return args
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-cpp', '-EP']
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # TODO: needs default search path added
+        return ['-lifcore', '-limf']
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-gen-dep=' + outtarget, '-gen-depformat=make']
+
+
+class IntelLLVMFortranCompiler(IntelFortranCompiler):
+
+    id = 'intel-llvm'
+
+
+class IntelClFortranCompiler(IntelVisualStudioLikeCompiler, FortranCompiler):
+
+    file_suffixes = ('f90', 'f', 'for', 'ftn', 'fpp', )
+    always_args = ['/nologo']
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', target: str,
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        IntelVisualStudioLikeCompiler.__init__(self, target)
+
+        default_warn_args = ['/warn:general', '/warn:truncated_source']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args + ['/warn:unused'],
+                          '3': ['/warn:all'],
+                          'everything': ['/warn:all']}
+
+    def get_options(self) -> 'MutableKeyedOptionDictType':
+        opts = FortranCompiler.get_options(self)
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        opts[key].choices = ['none', 'legacy', 'f95', 'f2003', 'f2008', 'f2018']
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args = []
+        key = OptionKey('std', machine=self.for_machine, lang=self.language)
+        std = options[key]
+        stds = {'legacy': 'none', 'f95': 'f95', 'f2003': 'f03', 'f2008': 'f08', 'f2018': 'f18'}
+        if std.value != 'none':
+            args.append('/stand:' + stds[std.value])
+        return args
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['/module:' + path]
+
+
+class IntelLLVMClFortranCompiler(IntelClFortranCompiler):
+
+    id = 'intel-llvm-cl'
+
+class PathScaleFortranCompiler(FortranCompiler):
+
+    id = 'pathscale'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        default_warn_args = ['-fullwarn']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args,
+                          'everything': default_warn_args}
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-mp']
+
+
+class PGIFortranCompiler(PGICompiler, FortranCompiler):
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        PGICompiler.__init__(self)
+
+        default_warn_args = ['-Minform=inform']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args + ['-Mdclchk'],
+                          'everything': default_warn_args + ['-Mdclchk']}
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # TODO: needs default search path added
+        return ['-lpgf90rtl', '-lpgf90', '-lpgf90_rpm1', '-lpgf902',
+                '-lpgf90rtl', '-lpgftnrtl', '-lrt']
+
+
+class NvidiaHPC_FortranCompiler(PGICompiler, FortranCompiler):
+
+    id = 'nvidia_hpc'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        PGICompiler.__init__(self)
+
+        default_warn_args = ['-Minform=inform']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args + ['-Mdclchk'],
+                          'everything': default_warn_args + ['-Mdclchk']}
+
+
+class FlangFortranCompiler(ClangCompiler, FortranCompiler):
+
+    id = 'flang'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        ClangCompiler.__init__(self, {})
+        default_warn_args = ['-Minform=inform']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args,
+                          'everything': default_warn_args}
+
+    def language_stdlib_only_link_flags(self, env: 'Environment') -> T.List[str]:
+        # We need to apply the search prefix here, as these link arguments may
+        # be passed to a different compiler with a different set of default
+        # search paths, such as when using Clang for C/C++ and gfortran for
+        # fortran,
+        # XXX: Untested....
+        search_dirs: T.List[str] = []
+        for d in self.get_compiler_dirs(env, 'libraries'):
+            search_dirs.append(f'-L{d}')
+        return search_dirs + ['-lflang', '-lpgmath']
+
+class ArmLtdFlangFortranCompiler(FlangFortranCompiler):
+
+    id = 'armltdflang'
+
+class Open64FortranCompiler(FortranCompiler):
+
+    id = 'open64'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        default_warn_args = ['-fullwarn']
+        self.warn_args = {'0': [],
+                          '1': default_warn_args,
+                          '2': default_warn_args,
+                          '3': default_warn_args,
+                          'everything': default_warn_args}
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-mp']
+
+
+class NAGFortranCompiler(FortranCompiler):
+
+    id = 'nagfor'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice, is_cross: bool,
+                 info: 'MachineInfo', exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 linker: T.Optional['DynamicLinker'] = None,
+                 full_version: T.Optional[str] = None):
+        FortranCompiler.__init__(self, exelist, version, for_machine,
+                                 is_cross, info, exe_wrapper, linker=linker,
+                                 full_version=full_version)
+        # Warnings are on by default; -w disables (by category):
+        self.warn_args = {
+            '0': ['-w=all'],
+            '1': [],
+            '2': [],
+            '3': [],
+            'everything': [],
+        }
+
+    def get_always_args(self) -> T.List[str]:
+        return self.get_nagfor_quiet(self.version)
+
+    def get_module_outdir_args(self, path: str) -> T.List[str]:
+        return ['-mdir', path]
+
+    @staticmethod
+    def get_nagfor_quiet(version: str) -> T.List[str]:
+        return ['-quiet'] if version_compare(version, '>=7100') else []
+
+    def get_pic_args(self) -> T.List[str]:
+        return ['-PIC']
+
+    def get_preprocess_only_args(self) -> T.List[str]:
+        return ['-fpp']
+
+    def get_std_exe_link_args(self) -> T.List[str]:
+        return self.get_always_args()
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-openmp']