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# Copyright 2013-2019 The Meson development team
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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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# http://www.apache.org/licenses/LICENSE-2.0
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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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# This file contains the detection logic for external dependencies useful for
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# development purposes, such as testing, debugging, etc..
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import glob
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import os
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import re
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import typing as T
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from .. import mesonlib, mlog
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from ..mesonlib import version_compare, stringlistify, extract_as_list, MachineChoice
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from ..environment import get_llvm_tool_names
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from .base import (
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DependencyException, DependencyMethods, ExternalDependency, PkgConfigDependency,
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strip_system_libdirs, ConfigToolDependency, CMakeDependency, DependencyFactory,
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)
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from .misc import threads_factory
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from ..compilers.c import AppleClangCCompiler
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from ..compilers.cpp import AppleClangCPPCompiler
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if T.TYPE_CHECKING:
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from .. environment import Environment
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def get_shared_library_suffix(environment, for_machine: MachineChoice):
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"""This is only guaranteed to work for languages that compile to machine
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code, not for languages like C# that use a bytecode and always end in .dll
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"""
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m = environment.machines[for_machine]
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if m.is_windows():
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return '.dll'
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elif m.is_darwin():
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return '.dylib'
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return '.so'
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class GTestDependencySystem(ExternalDependency):
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def __init__(self, name: str, environment, kwargs):
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super().__init__(name, environment, kwargs, language='cpp')
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self.main = kwargs.get('main', False)
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self.src_dirs = ['/usr/src/gtest/src', '/usr/src/googletest/googletest/src']
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if not self._add_sub_dependency(threads_factory(environment, self.for_machine, {})):
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self.is_found = False
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return
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self.detect()
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def detect(self):
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gtest_detect = self.clib_compiler.find_library("gtest", self.env, [])
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gtest_main_detect = self.clib_compiler.find_library("gtest_main", self.env, [])
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if gtest_detect and (not self.main or gtest_main_detect):
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self.is_found = True
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self.compile_args = []
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self.link_args = gtest_detect
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if self.main:
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self.link_args += gtest_main_detect
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self.sources = []
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self.prebuilt = True
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elif self.detect_srcdir():
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self.is_found = True
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self.compile_args = ['-I' + d for d in self.src_include_dirs]
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self.link_args = []
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if self.main:
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self.sources = [self.all_src, self.main_src]
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else:
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self.sources = [self.all_src]
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self.prebuilt = False
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else:
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self.is_found = False
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def detect_srcdir(self):
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for s in self.src_dirs:
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if os.path.exists(s):
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self.src_dir = s
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self.all_src = mesonlib.File.from_absolute_file(
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os.path.join(self.src_dir, 'gtest-all.cc'))
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self.main_src = mesonlib.File.from_absolute_file(
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os.path.join(self.src_dir, 'gtest_main.cc'))
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self.src_include_dirs = [os.path.normpath(os.path.join(self.src_dir, '..')),
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os.path.normpath(os.path.join(self.src_dir, '../include')),
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]
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return True
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return False
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def log_info(self):
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if self.prebuilt:
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return 'prebuilt'
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else:
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return 'building self'
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def log_tried(self):
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return 'system'
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@staticmethod
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def get_methods():
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return [DependencyMethods.PKGCONFIG, DependencyMethods.SYSTEM]
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class GTestDependencyPC(PkgConfigDependency):
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def __init__(self, name: str, environment: 'Environment', kwargs: T.Dict[str, T.Any]):
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assert name == 'gtest'
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if kwargs.get('main'):
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name = 'gtest_main'
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super().__init__(name, environment, kwargs)
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class GMockDependencySystem(ExternalDependency):
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def __init__(self, name: str, environment, kwargs):
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super().__init__(name, environment, kwargs, language='cpp')
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self.main = kwargs.get('main', False)
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if not self._add_sub_dependency(threads_factory(environment, self.for_machine, {})):
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self.is_found = False
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return
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# If we are getting main() from GMock, we definitely
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# want to avoid linking in main() from GTest
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gtest_kwargs = kwargs.copy()
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if self.main:
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gtest_kwargs['main'] = False
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# GMock without GTest is pretty much useless
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# this also mimics the structure given in WrapDB,
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# where GMock always pulls in GTest
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found = self._add_sub_dependency(gtest_factory(environment, self.for_machine, gtest_kwargs))
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if not found:
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self.is_found = False
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return
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# GMock may be a library or just source.
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# Work with both.
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gmock_detect = self.clib_compiler.find_library("gmock", self.env, [])
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gmock_main_detect = self.clib_compiler.find_library("gmock_main", self.env, [])
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if gmock_detect and (not self.main or gmock_main_detect):
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self.is_found = True
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self.link_args += gmock_detect
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if self.main:
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self.link_args += gmock_main_detect
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self.prebuilt = True
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return
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for d in ['/usr/src/googletest/googlemock/src', '/usr/src/gmock/src', '/usr/src/gmock']:
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if os.path.exists(d):
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self.is_found = True
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# Yes, we need both because there are multiple
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# versions of gmock that do different things.
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d2 = os.path.normpath(os.path.join(d, '..'))
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self.compile_args += ['-I' + d, '-I' + d2, '-I' + os.path.join(d2, 'include')]
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all_src = mesonlib.File.from_absolute_file(os.path.join(d, 'gmock-all.cc'))
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main_src = mesonlib.File.from_absolute_file(os.path.join(d, 'gmock_main.cc'))
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if self.main:
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self.sources += [all_src, main_src]
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else:
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self.sources += [all_src]
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self.prebuilt = False
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return
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self.is_found = False
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def log_info(self):
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if self.prebuilt:
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return 'prebuilt'
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else:
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return 'building self'
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def log_tried(self):
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return 'system'
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@staticmethod
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def get_methods():
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return [DependencyMethods.PKGCONFIG, DependencyMethods.SYSTEM]
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class GMockDependencyPC(PkgConfigDependency):
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def __init__(self, name: str, environment: 'Environment', kwargs: T.Dict[str, T.Any]):
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assert name == 'gmock'
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if kwargs.get('main'):
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name = 'gmock_main'
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super().__init__(name, environment, kwargs)
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class LLVMDependencyConfigTool(ConfigToolDependency):
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"""
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LLVM uses a special tool, llvm-config, which has arguments for getting
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c args, cxx args, and ldargs as well as version.
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"""
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tool_name = 'llvm-config'
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__cpp_blacklist = {'-DNDEBUG'}
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def __init__(self, name: str, environment, kwargs):
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self.tools = get_llvm_tool_names('llvm-config')
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# Fedora starting with Fedora 30 adds a suffix of the number
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# of bits in the isa that llvm targets, for example, on x86_64
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# and aarch64 the name will be llvm-config-64, on x86 and arm
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# it will be llvm-config-32.
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if environment.machines[self.get_for_machine_from_kwargs(kwargs)].is_64_bit:
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self.tools.append('llvm-config-64')
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else:
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self.tools.append('llvm-config-32')
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# It's necessary for LLVM <= 3.8 to use the C++ linker. For 3.9 and 4.0
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# the C linker works fine if only using the C API.
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super().__init__(name, environment, kwargs, language='cpp')
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self.provided_modules = []
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self.required_modules = set()
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self.module_details = []
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if not self.is_found:
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return
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self.provided_modules = self.get_config_value(['--components'], 'modules')
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modules = stringlistify(extract_as_list(kwargs, 'modules'))
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self.check_components(modules)
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opt_modules = stringlistify(extract_as_list(kwargs, 'optional_modules'))
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self.check_components(opt_modules, required=False)
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cargs = set(self.get_config_value(['--cppflags'], 'compile_args'))
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self.compile_args = list(cargs.difference(self.__cpp_blacklist))
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if version_compare(self.version, '>= 3.9'):
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self._set_new_link_args(environment)
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else:
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self._set_old_link_args()
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self.link_args = strip_system_libdirs(environment, self.for_machine, self.link_args)
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self.link_args = self.__fix_bogus_link_args(self.link_args)
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if not self._add_sub_dependency(threads_factory(environment, self.for_machine, {})):
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self.is_found = False
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return
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def __fix_bogus_link_args(self, args):
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"""This function attempts to fix bogus link arguments that llvm-config
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generates.
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Currently it works around the following:
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- FreeBSD: when statically linking -l/usr/lib/libexecinfo.so will
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be generated, strip the -l in cases like this.
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- Windows: We may get -LIBPATH:... which is later interpreted as
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"-L IBPATH:...", if we're using an msvc like compilers convert
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that to "/LIBPATH", otherwise to "-L ..."
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"""
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cpp = self.env.coredata.compilers[self.for_machine]['cpp']
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new_args = []
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for arg in args:
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if arg.startswith('-l') and arg.endswith('.so'):
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new_args.append(arg.lstrip('-l'))
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elif arg.startswith('-LIBPATH:'):
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new_args.extend(cpp.get_linker_search_args(arg.lstrip('-LIBPATH:')))
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else:
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new_args.append(arg)
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return new_args
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def __check_libfiles(self, shared):
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"""Use llvm-config's --libfiles to check if libraries exist."""
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mode = '--link-shared' if shared else '--link-static'
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# Set self.required to true to force an exception in get_config_value
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# if the returncode != 0
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restore = self.required
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self.required = True
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try:
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# It doesn't matter what the stage is, the caller needs to catch
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# the exception anyway.
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self.link_args = self.get_config_value(['--libfiles', mode], '')
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finally:
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self.required = restore
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def _set_new_link_args(self, environment):
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"""How to set linker args for LLVM versions >= 3.9"""
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mode = self.get_config_value(['--shared-mode'], 'link_args')[0]
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if not self.static and mode == 'static':
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# If llvm is configured with LLVM_BUILD_LLVM_DYLIB but not with
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# LLVM_LINK_LLVM_DYLIB and not LLVM_BUILD_SHARED_LIBS (which
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# upstream doesn't recommend using), then llvm-config will lie to
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# you about how to do shared-linking. It wants to link to a a bunch
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# of individual shared libs (which don't exist because llvm wasn't
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# built with LLVM_BUILD_SHARED_LIBS.
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#
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# Therefore, we'll try to get the libfiles, if the return code is 0
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# or we get an empty list, then we'll try to build a working
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# configuration by hand.
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try:
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self.__check_libfiles(True)
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except DependencyException:
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lib_ext = get_shared_library_suffix(environment, self.for_machine)
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libdir = self.get_config_value(['--libdir'], 'link_args')[0]
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# Sort for reproducibility
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matches = sorted(glob.iglob(os.path.join(libdir, 'libLLVM*{}'.format(lib_ext))))
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if not matches:
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if self.required:
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raise
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self.is_found = False
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return
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self.link_args = self.get_config_value(['--ldflags'], 'link_args')
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libname = os.path.basename(matches[0]).rstrip(lib_ext).lstrip('lib')
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self.link_args.append('-l{}'.format(libname))
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return
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elif self.static and mode == 'shared':
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# If, however LLVM_BUILD_SHARED_LIBS is true # (*cough* gentoo *cough*)
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# then this is correct. Building with LLVM_BUILD_SHARED_LIBS has a side
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# effect, it stops the generation of static archives. Therefore we need
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# to check for that and error out on static if this is the case
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try:
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self.__check_libfiles(False)
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except DependencyException:
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if self.required:
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raise
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self.is_found = False
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return
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link_args = ['--link-static', '--system-libs'] if self.static else ['--link-shared']
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self.link_args = self.get_config_value(
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['--libs', '--ldflags'] + link_args + list(self.required_modules),
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'link_args')
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def _set_old_link_args(self):
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"""Setting linker args for older versions of llvm.
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Old versions of LLVM bring an extra level of insanity with them.
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llvm-config will provide the correct arguments for static linking, but
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not for shared-linnking, we have to figure those out ourselves, because
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of course we do.
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"""
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if self.static:
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self.link_args = self.get_config_value(
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['--libs', '--ldflags', '--system-libs'] + list(self.required_modules),
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'link_args')
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else:
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# llvm-config will provide arguments for static linking, so we get
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# to figure out for ourselves what to link with. We'll do that by
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# checking in the directory provided by --libdir for a library
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# called libLLVM-<ver>.(so|dylib|dll)
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libdir = self.get_config_value(['--libdir'], 'link_args')[0]
|
|
|
|
|
|
|
|
expected_name = 'libLLVM-{}'.format(self.version)
|
|
|
|
re_name = re.compile(r'{}.(so|dll|dylib)$'.format(expected_name))
|
|
|
|
|
|
|
|
for file_ in os.listdir(libdir):
|
|
|
|
if re_name.match(file_):
|
|
|
|
self.link_args = ['-L{}'.format(libdir),
|
|
|
|
'-l{}'.format(os.path.splitext(file_.lstrip('lib'))[0])]
|
|
|
|
break
|
|
|
|
else:
|
|
|
|
raise DependencyException(
|
|
|
|
'Could not find a dynamically linkable library for LLVM.')
|
|
|
|
|
|
|
|
def check_components(self, modules, required=True):
|
|
|
|
"""Check for llvm components (modules in meson terms).
|
|
|
|
|
|
|
|
The required option is whether the module is required, not whether LLVM
|
|
|
|
is required.
|
|
|
|
"""
|
|
|
|
for mod in sorted(set(modules)):
|
|
|
|
status = ''
|
|
|
|
|
|
|
|
if mod not in self.provided_modules:
|
|
|
|
if required:
|
|
|
|
self.is_found = False
|
|
|
|
if self.required:
|
|
|
|
raise DependencyException(
|
|
|
|
'Could not find required LLVM Component: {}'.format(mod))
|
|
|
|
status = '(missing)'
|
|
|
|
else:
|
|
|
|
status = '(missing but optional)'
|
|
|
|
else:
|
|
|
|
self.required_modules.add(mod)
|
|
|
|
|
|
|
|
self.module_details.append(mod + status)
|
|
|
|
|
|
|
|
def log_details(self):
|
|
|
|
if self.module_details:
|
|
|
|
return 'modules: ' + ', '.join(self.module_details)
|
|
|
|
return ''
|
|
|
|
|
|
|
|
class LLVMDependencyCMake(CMakeDependency):
|
|
|
|
def __init__(self, name: str, env, kwargs):
|
|
|
|
self.llvm_modules = stringlistify(extract_as_list(kwargs, 'modules'))
|
|
|
|
self.llvm_opt_modules = stringlistify(extract_as_list(kwargs, 'optional_modules'))
|
|
|
|
super().__init__(name, env, kwargs, language='cpp')
|
|
|
|
|
|
|
|
# Cmake will always create a statically linked binary, so don't use
|
|
|
|
# cmake if dynamic is required
|
|
|
|
if not self.static:
|
|
|
|
self.is_found = False
|
|
|
|
return
|
|
|
|
|
|
|
|
if self.traceparser is None:
|
|
|
|
return
|
|
|
|
|
|
|
|
# Extract extra include directories and definitions
|
|
|
|
inc_dirs = self.traceparser.get_cmake_var('PACKAGE_INCLUDE_DIRS')
|
|
|
|
defs = self.traceparser.get_cmake_var('PACKAGE_DEFINITIONS')
|
|
|
|
# LLVM explicitly uses space-separated variables rather than semicolon lists
|
|
|
|
if len(defs) == 1:
|
|
|
|
defs = defs[0].split(' ')
|
|
|
|
temp = ['-I' + x for x in inc_dirs] + defs
|
|
|
|
self.compile_args += [x for x in temp if x not in self.compile_args]
|
|
|
|
if not self._add_sub_dependency(threads_factory(env, self.for_machine, {})):
|
|
|
|
self.is_found = False
|
|
|
|
return
|
|
|
|
|
|
|
|
def _main_cmake_file(self) -> str:
|
|
|
|
# Use a custom CMakeLists.txt for LLVM
|
|
|
|
return 'CMakeListsLLVM.txt'
|
|
|
|
|
|
|
|
def _extra_cmake_opts(self) -> T.List[str]:
|
|
|
|
return ['-DLLVM_MESON_MODULES={}'.format(';'.join(self.llvm_modules + self.llvm_opt_modules))]
|
|
|
|
|
|
|
|
def _map_module_list(self, modules: T.List[T.Tuple[str, bool]], components: T.List[T.Tuple[str, bool]]) -> T.List[T.Tuple[str, bool]]:
|
|
|
|
res = []
|
|
|
|
for mod, required in modules:
|
|
|
|
cm_targets = self.traceparser.get_cmake_var('MESON_LLVM_TARGETS_{}'.format(mod))
|
|
|
|
if not cm_targets:
|
|
|
|
if required:
|
|
|
|
raise self._gen_exception('LLVM module {} was not found'.format(mod))
|
|
|
|
else:
|
|
|
|
mlog.warning('Optional LLVM module', mlog.bold(mod), 'was not found')
|
|
|
|
continue
|
|
|
|
for i in cm_targets:
|
|
|
|
res += [(i, required)]
|
|
|
|
return res
|
|
|
|
|
|
|
|
def _original_module_name(self, module: str) -> str:
|
|
|
|
orig_name = self.traceparser.get_cmake_var('MESON_TARGET_TO_LLVM_{}'.format(module))
|
|
|
|
if orig_name:
|
|
|
|
return orig_name[0]
|
|
|
|
return module
|
|
|
|
|
|
|
|
|
|
|
|
class ValgrindDependency(PkgConfigDependency):
|
|
|
|
'''
|
|
|
|
Consumers of Valgrind usually only need the compile args and do not want to
|
|
|
|
link to its (static) libraries.
|
|
|
|
'''
|
|
|
|
def __init__(self, env, kwargs):
|
|
|
|
super().__init__('valgrind', env, kwargs)
|
|
|
|
|
|
|
|
def get_link_args(self, **kwargs):
|
|
|
|
return []
|
|
|
|
|
|
|
|
|
|
|
|
class ZlibSystemDependency(ExternalDependency):
|
|
|
|
|
|
|
|
def __init__(self, name: str, environment: 'Environment', kwargs: T.Dict[str, T.Any]):
|
|
|
|
super().__init__(name, environment, kwargs)
|
|
|
|
|
|
|
|
m = self.env.machines[self.for_machine]
|
|
|
|
|
|
|
|
# I'm not sure this is entirely correct. What if we're cross compiling
|
|
|
|
# from something to macOS?
|
|
|
|
if ((m.is_darwin() and isinstance(self.clib_compiler, (AppleClangCCompiler, AppleClangCPPCompiler))) or
|
|
|
|
m.is_freebsd() or m.is_dragonflybsd()):
|
|
|
|
self.is_found = True
|
|
|
|
self.link_args = ['-lz']
|
|
|
|
|
|
|
|
# No need to set includes,
|
|
|
|
# on macos xcode/clang will do that for us.
|
|
|
|
# on freebsd zlib.h is in /usr/include
|
|
|
|
elif m.is_windows():
|
|
|
|
if self.clib_compiler.get_argument_syntax() == 'msvc':
|
|
|
|
libs = ['zlib1' 'zlib']
|
|
|
|
else:
|
|
|
|
libs = ['z']
|
|
|
|
for lib in libs:
|
|
|
|
l = self.clib_compiler.find_library(lib, environment, [])
|
|
|
|
h = self.clib_compiler.has_header('zlib.h', '', environment, dependencies=[self])
|
|
|
|
if l and h:
|
|
|
|
self.is_found = True
|
|
|
|
self.link_args = l
|
|
|
|
break
|
|
|
|
else:
|
|
|
|
return
|
|
|
|
else:
|
|
|
|
mlog.debug('Unsupported OS {}'.format(m.system))
|
|
|
|
return
|
|
|
|
|
|
|
|
v, _ = self.clib_compiler.get_define('ZLIB_VERSION', '#include <zlib.h>', self.env, [], [self])
|
|
|
|
self.version = v.strip('"')
|
|
|
|
|
|
|
|
|
|
|
|
@staticmethod
|
|
|
|
def get_methods():
|
|
|
|
return [DependencyMethods.SYSTEM]
|
|
|
|
|
|
|
|
|
|
|
|
llvm_factory = DependencyFactory(
|
|
|
|
'LLVM',
|
|
|
|
[DependencyMethods.CMAKE, DependencyMethods.CONFIG_TOOL],
|
|
|
|
cmake_class=LLVMDependencyCMake,
|
|
|
|
configtool_class=LLVMDependencyConfigTool,
|
|
|
|
)
|
|
|
|
|
|
|
|
gtest_factory = DependencyFactory(
|
|
|
|
'gtest',
|
|
|
|
[DependencyMethods.PKGCONFIG, DependencyMethods.SYSTEM],
|
|
|
|
pkgconfig_class=GTestDependencyPC,
|
|
|
|
system_class=GTestDependencySystem,
|
|
|
|
)
|
|
|
|
|
|
|
|
gmock_factory = DependencyFactory(
|
|
|
|
'gmock',
|
|
|
|
[DependencyMethods.PKGCONFIG, DependencyMethods.SYSTEM],
|
|
|
|
pkgconfig_class=GMockDependencyPC,
|
|
|
|
system_class=GMockDependencySystem,
|
|
|
|
)
|
|
|
|
|
|
|
|
zlib_factory = DependencyFactory(
|
|
|
|
'zlib',
|
|
|
|
[DependencyMethods.PKGCONFIG, DependencyMethods.CMAKE, DependencyMethods.SYSTEM],
|
|
|
|
cmake_name='ZLIB',
|
|
|
|
system_class=ZlibSystemDependency,
|
|
|
|
)
|