|
| 1 | +import os |
| 2 | +import subprocess |
| 3 | +import shutil |
| 4 | +import sh |
| 5 | +from pathlib import Path |
| 6 | +from os.path import join |
| 7 | +from pythonforandroid.recipe import Recipe |
| 8 | +from pythonforandroid.recommendations import read_ndk_version |
| 9 | +from pythonforandroid.logger import info, shprint, info_main |
| 10 | +from pythonforandroid.util import ensure_dir |
| 11 | +import hashlib |
| 12 | + |
| 13 | +FLANG_FILES = { |
| 14 | + "package-flang-aarch64.tar.bz2": "bf01399513e3b435224d9a9f656b72a0965a23fdd8c3c26af0f7c32f2a5f3403", |
| 15 | + "package-flang-host.tar.bz2": "3ea2c0e8125ededddf9b3f23c767b8e37816e140ac934c76ace19a168fefdf83", |
| 16 | + "package-flang-x86_64.tar.bz2": "afe7e391355c71e7b0c8ee71a3002e83e2e524ad61810238815facf3030be6e6", |
| 17 | + "package-install.tar.bz2": "169b75f6125dc7b95e1d30416147a05d135da6cbe9cc8432d48f5b8633ac38db", |
| 18 | +} |
| 19 | + |
| 20 | + |
| 21 | +class GFortranRecipe(Recipe): |
| 22 | + # flang support in NDK by @termux (on github) |
| 23 | + name = "fortran" |
| 24 | + toolchain_ver = 0 |
| 25 | + url = "https://github.com/termux/ndk-toolchain-clang-with-flang/releases/download/" |
| 26 | + |
| 27 | + def match_sha256(self, file_path, expected_hash): |
| 28 | + sha256 = hashlib.sha256() |
| 29 | + with open(file_path, "rb") as f: |
| 30 | + for chunk in iter(lambda: f.read(8192), b""): |
| 31 | + sha256.update(chunk) |
| 32 | + file_hash = sha256.hexdigest() |
| 33 | + return file_hash == expected_hash |
| 34 | + |
| 35 | + @property |
| 36 | + def ndk_version(self): |
| 37 | + ndk_version = read_ndk_version(self.ctx.ndk_dir) |
| 38 | + minor_to_letter = {0: ""} |
| 39 | + minor_to_letter.update( |
| 40 | + {n + 1: chr(i) for n, i in enumerate(range(ord("b"), ord("b") + 25))} |
| 41 | + ) |
| 42 | + return f"{ndk_version.major}{minor_to_letter[ndk_version.minor]}" |
| 43 | + |
| 44 | + def get_cache_dir(self): |
| 45 | + dir_name = self.get_dir_name() |
| 46 | + return join(self.ctx.build_dir, "other_builds", dir_name) |
| 47 | + |
| 48 | + def get_fortran_dir(self): |
| 49 | + toolchain_name = f"android-r{self.ndk_version}-api-{self.ctx.ndk_api}" |
| 50 | + return join( |
| 51 | + self.get_cache_dir(), f"{toolchain_name}-flang-v{self.toolchain_ver}" |
| 52 | + ) |
| 53 | + |
| 54 | + def get_incomplete_files(self): |
| 55 | + incomplete_files = [] |
| 56 | + cache_dir = self.get_cache_dir() |
| 57 | + for file, sha256sum in FLANG_FILES.items(): |
| 58 | + _file = join(cache_dir, file) |
| 59 | + if not (os.path.exists(_file) and self.match_sha256(_file, sha256sum)): |
| 60 | + incomplete_files.append(file) |
| 61 | + return incomplete_files |
| 62 | + |
| 63 | + def download_if_necessary(self): |
| 64 | + assert self.ndk_version == "28c" |
| 65 | + if len(self.get_incomplete_files()) == 0: |
| 66 | + return |
| 67 | + self.download() |
| 68 | + |
| 69 | + def download(self): |
| 70 | + cache_dir = self.get_cache_dir() |
| 71 | + ensure_dir(cache_dir) |
| 72 | + for file in self.get_incomplete_files(): |
| 73 | + _file = join(cache_dir, file) |
| 74 | + if os.path.exists(_file): |
| 75 | + os.remove(_file) |
| 76 | + self.download_file(f"{self.url}r{join(self.ndk_version, file)}", _file) |
| 77 | + |
| 78 | + def extract_tar(self, file_path: Path, dest: Path, strip=1): |
| 79 | + shprint( |
| 80 | + sh.tar, |
| 81 | + "xf", |
| 82 | + str(file_path), |
| 83 | + "--strip-components", |
| 84 | + str(strip), |
| 85 | + "-C", |
| 86 | + str(dest) if dest else ".", |
| 87 | + ) |
| 88 | + |
| 89 | + def create_flang_wrapper(self, path: Path, target: str): |
| 90 | + script = f"""#!/usr/bin/env bash |
| 91 | +if [ "$1" != "-cpp" ] && [ "$1" != "-fc1" ]; then |
| 92 | + `dirname $0`/flang-new --target={target}{self.ctx.ndk_api} -D__ANDROID_API__={self.ctx.ndk_api} "$@" |
| 93 | +else |
| 94 | + `dirname $0`/flang-new "$@" |
| 95 | +fi |
| 96 | +""" |
| 97 | + path.write_text(script) |
| 98 | + path.chmod(0o755) |
| 99 | + |
| 100 | + def unpack(self, arch): |
| 101 | + info_main("Unpacking fortran") |
| 102 | + |
| 103 | + flang_folder = self.get_fortran_dir() |
| 104 | + if os.path.exists(flang_folder): |
| 105 | + info("{} is already unpacked, skipping".format(self.name)) |
| 106 | + return |
| 107 | + |
| 108 | + toolchain_path = Path( |
| 109 | + join(self.ctx.ndk_dir, "toolchains/llvm/prebuilt/linux-x86_64") |
| 110 | + ) |
| 111 | + cache_dir = Path(os.path.abspath(self.get_cache_dir())) |
| 112 | + |
| 113 | + # clean tmp folder |
| 114 | + tmp_folder = Path(os.path.abspath(f"{flang_folder}-tmp")) |
| 115 | + shutil.rmtree(tmp_folder, ignore_errors=True) |
| 116 | + tmp_folder.mkdir(parents=True) |
| 117 | + os.chdir(tmp_folder) |
| 118 | + |
| 119 | + self.extract_tar(cache_dir / "package-install.tar.bz2", None, strip=4) |
| 120 | + self.extract_tar(cache_dir / "package-flang-host.tar.bz2", None) |
| 121 | + |
| 122 | + sysroot_path = tmp_folder / "sysroot" |
| 123 | + shutil.copytree(toolchain_path / "sysroot", sysroot_path) |
| 124 | + |
| 125 | + self.extract_tar( |
| 126 | + cache_dir / "package-flang-aarch64.tar.bz2", |
| 127 | + sysroot_path / "usr/lib/aarch64-linux-android", |
| 128 | + ) |
| 129 | + self.extract_tar( |
| 130 | + cache_dir / "package-flang-x86_64.tar.bz2", |
| 131 | + sysroot_path / "usr/lib/x86_64-linux-android", |
| 132 | + ) |
| 133 | + |
| 134 | + # Fix lib/clang paths |
| 135 | + version_output = subprocess.check_output( |
| 136 | + [str(tmp_folder / "bin/clang"), "--version"], text=True |
| 137 | + ) |
| 138 | + clang_version = next( |
| 139 | + (line for line in version_output.splitlines() if "clang version" in line), |
| 140 | + "", |
| 141 | + ) |
| 142 | + major_ver = clang_version.split("clang version ")[-1].split(".")[0] |
| 143 | + |
| 144 | + lib_path = tmp_folder / f"lib/clang/{major_ver}/lib" |
| 145 | + src_lib_path = toolchain_path / f"lib/clang/{major_ver}/lib" |
| 146 | + shutil.rmtree(lib_path, ignore_errors=True) |
| 147 | + lib_path.mkdir(parents=True) |
| 148 | + |
| 149 | + for item in src_lib_path.iterdir(): |
| 150 | + shprint(sh.cp, "-r", str(item), str(lib_path)) |
| 151 | + |
| 152 | + # Create flang wrappers |
| 153 | + targets = [ |
| 154 | + "aarch64-linux-android", |
| 155 | + "armv7a-linux-androideabi", |
| 156 | + "i686-linux-android", |
| 157 | + "x86_64-linux-android", |
| 158 | + ] |
| 159 | + |
| 160 | + for target in targets: |
| 161 | + wrapper_path = tmp_folder / f"bin/{target}-flang" |
| 162 | + self.create_flang_wrapper(wrapper_path, target) |
| 163 | + shutil.copy( |
| 164 | + wrapper_path, tmp_folder / f"bin/{target}{self.ctx.ndk_api}-flang" |
| 165 | + ) |
| 166 | + |
| 167 | + tmp_folder.rename(flang_folder) |
| 168 | + |
| 169 | + @property |
| 170 | + def bin_path(self): |
| 171 | + return f"{self.get_fortran_dir()}/bin" |
| 172 | + |
| 173 | + def get_host_platform(self, arch): |
| 174 | + return { |
| 175 | + "arm64-v8a": "aarch64-linux-android", |
| 176 | + "armeabi-v7a": "armv7a-linux-androideabi", |
| 177 | + "x86_64": "x86_64-linux-android", |
| 178 | + "x86": "i686-linux-android", |
| 179 | + }[arch] |
| 180 | + |
| 181 | + def get_fortran_bin(self, arch): |
| 182 | + return join(self.bin_path, f"{self.get_host_platform(arch)}-flang") |
| 183 | + |
| 184 | + def get_fortran_flags(self, arch): |
| 185 | + return f"--target={self.get_host_platform(arch)}{self.ctx.ndk_api} -D__ANDROID_API__={self.ctx.ndk_api}" |
| 186 | + |
| 187 | + |
| 188 | +recipe = GFortranRecipe() |
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