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131 lines
4.8 KiB
Python
131 lines
4.8 KiB
Python
import os
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import re
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import subprocess
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from typing import cast, Optional, Sequence, TextIO, Union
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from collections.abc import Mapping
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from build.project import Project
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from .toolchain import AnyToolchain
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def __write_cmake_compiler(f: TextIO, language: str, compiler: str) -> None:
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s = compiler.split(' ', 1)
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if len(s) == 2:
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print(f'set(CMAKE_{language}_COMPILER_LAUNCHER {s[0]})', file=f)
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compiler = s[1]
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print(f'set(CMAKE_{language}_COMPILER {compiler})', file=f)
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def __write_cmake_toolchain_file(f: TextIO, toolchain: AnyToolchain) -> None:
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if toolchain.is_darwin:
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cmake_system_name = 'Darwin'
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elif toolchain.is_windows:
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cmake_system_name = 'Windows'
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else:
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cmake_system_name = 'Linux'
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f.write(f"""
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set(CMAKE_SYSTEM_NAME {cmake_system_name})
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set(CMAKE_SYSTEM_PROCESSOR {toolchain.host_triplet.split('-', 1)[0]})
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set(CMAKE_C_COMPILER_TARGET {toolchain.host_triplet})
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set(CMAKE_CXX_COMPILER_TARGET {toolchain.host_triplet})
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set(CMAKE_C_FLAGS_INIT "{toolchain.cflags} {toolchain.cppflags}")
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set(CMAKE_CXX_FLAGS_INIT "{toolchain.cxxflags} {toolchain.cppflags}")
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""")
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__write_cmake_compiler(f, 'C', toolchain.cc)
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__write_cmake_compiler(f, 'CXX', toolchain.cxx)
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if cmake_system_name == 'Darwin':
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# On macOS, cmake forcibly adds an "-isysroot" flag even if
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# one is already present in the flags variable; this breaks
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# cross-compiling for iOS, and can be worked around by setting
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# the CMAKE_OSX_SYSROOT variable
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# (https://cmake.org/cmake/help/latest/variable/CMAKE_OSX_SYSROOT.html).
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m = re.search(r'-isysroot +(\S+)', toolchain.cflags)
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if m:
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sysroot = m.group(1)
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print(f'set(CMAKE_OSX_SYSROOT {sysroot})', file=f)
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# search libraries and headers only in the sysroot, not on
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# the build host
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f.write(f"""
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set(CMAKE_FIND_ROOT_PATH "{toolchain.install_prefix};{sysroot}")
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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""")
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elif cmake_system_name == 'Windows':
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# search libraries and headers only in the sysroot, not on
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# the build host
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f.write(f"""
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set(CMAKE_FIND_ROOT_PATH "{toolchain.install_prefix}")
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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""")
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def configure(toolchain: AnyToolchain, src: str, build: str, args: list[str]=[], env: Optional[Mapping[str, str]]=None) -> None:
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cross_args: list[str] = []
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if toolchain.is_windows:
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cross_args.append('-DCMAKE_RC_COMPILER=' + cast(str, toolchain.windres))
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configure = [
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'cmake',
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src,
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'-DCMAKE_INSTALL_PREFIX=' + toolchain.install_prefix,
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'-DCMAKE_BUILD_TYPE=release',
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'-GNinja',
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] + cross_args + args
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if toolchain.host_triplet is not None:
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# cross-compiling: write a toolchain file
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os.makedirs(build, exist_ok=True)
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# Several targets need a sysroot to prevent pkg-config from
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# looking for libraries on the build host (TODO: fix this
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# properly); but we must not do that on Android because the NDK
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# has a sysroot already
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if not toolchain.is_android and not toolchain.is_darwin:
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cross_args.append('-DCMAKE_SYSROOT=' + toolchain.install_prefix)
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cmake_toolchain_file = os.path.join(build, 'cmake_toolchain_file')
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with open(cmake_toolchain_file, 'w') as f:
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__write_cmake_toolchain_file(f, toolchain)
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configure.append('-DCMAKE_TOOLCHAIN_FILE=' + cmake_toolchain_file)
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if env is None:
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env = toolchain.env
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else:
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env = {**toolchain.env, **env}
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print(configure)
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subprocess.check_call(configure, env=env, cwd=build)
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class CmakeProject(Project):
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def __init__(self, url: Union[str, Sequence[str]], md5: str, installed: str,
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configure_args: list[str]=[],
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windows_configure_args: list[str]=[],
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env: Optional[Mapping[str, str]]=None,
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**kwargs):
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Project.__init__(self, url, md5, installed, **kwargs)
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self.configure_args = configure_args
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self.windows_configure_args = windows_configure_args
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self.env = env
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def configure(self, toolchain: AnyToolchain) -> str:
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src = self.unpack(toolchain)
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build = self.make_build_path(toolchain)
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configure_args = self.configure_args
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if toolchain.is_windows:
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configure_args = configure_args + self.windows_configure_args
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configure(toolchain, src, build, configure_args, self.env)
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return build
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def _build(self, toolchain: AnyToolchain) -> None:
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build = self.configure(toolchain)
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subprocess.check_call(['ninja', '-v', 'install'],
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cwd=build, env=toolchain.env)
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