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build: Build Swift SDK for WebAssembly #72728
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kateinoigakukun
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swiftlang:main
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kateinoigakukun:yt/wasm-sdk-generator
May 23, 2024
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116 changes: 116 additions & 0 deletions
116
utils/swift_build_support/swift_build_support/products/wasmswiftsdk.py
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| # swift_build_support/products/wasmswiftsdk.py ------------------*- python -*- | ||
| # | ||
| # This source file is part of the Swift.org open source project | ||
| # | ||
| # Copyright (c) 2024 Apple Inc. and the Swift project authors | ||
| # Licensed under Apache License v2.0 with Runtime Library Exception | ||
| # | ||
| # See https://swift.org/LICENSE.txt for license information | ||
| # See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors | ||
| # | ||
| # ---------------------------------------------------------------------------- | ||
|
|
||
| import os | ||
|
|
||
| from . import product | ||
| from . import wasisysroot | ||
| from .wasmstdlib import WasmStdlib, WasmThreadsStdlib | ||
| from .. import shell | ||
|
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||
|
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| class WasmSwiftSDK(product.Product): | ||
| @classmethod | ||
| def product_source_name(cls): | ||
| return "swift-sdk-generator" | ||
|
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||
| @classmethod | ||
| def is_build_script_impl_product(cls): | ||
| return False | ||
|
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||
| @classmethod | ||
| def is_before_build_script_impl_product(cls): | ||
| return False | ||
|
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| def should_build(self, host_target): | ||
| return self.args.build_wasmstdlib | ||
|
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| def should_test(self, host_target): | ||
| return False | ||
|
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| def _target_package_path(self, target_triple): | ||
| return os.path.join(self.build_dir, 'Toolchains', target_triple) | ||
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| def _build_target_package(self, target_triple, | ||
| stdlib_build_path, llvm_runtime_libs_build_path): | ||
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| dest_dir = self._target_package_path(target_triple) | ||
| shell.rmtree(dest_dir) | ||
| shell.makedirs(dest_dir) | ||
|
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| # Build toolchain package for standalone stdlib | ||
| with shell.pushd(stdlib_build_path): | ||
| shell.call([self.toolchain.cmake, '--install', '.'], | ||
| env={'DESTDIR': dest_dir}) | ||
|
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| # Copy clang builtin libraries | ||
| with shell.pushd(llvm_runtime_libs_build_path): | ||
| for dirname in ['clang', 'swift/clang', 'swift_static/clang']: | ||
| clang_dir = os.path.join(dest_dir, f'usr/lib/{dirname}') | ||
| shell.call([self.toolchain.cmake, '--install', '.', | ||
| '--component', 'clang_rt.builtins-wasm32'], | ||
| env={'DESTDIR': clang_dir}) | ||
|
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| return dest_dir | ||
|
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| def build(self, host_target): | ||
| build_root = os.path.dirname(self.build_dir) | ||
| llvm_runtime_libs_build_path = os.path.join( | ||
| build_root, '%s-%s' % ('wasmllvmruntimelibs', host_target)) | ||
|
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| target_packages = [] | ||
| for target_triple, short_triple, build_basename in [ | ||
| ('wasm32-unknown-wasi', 'wasm32-wasi', 'wasmstdlib'), | ||
| # TODO: Enable threads stdlib once sdk-generator supports multi-target SDK | ||
| # ('wasm32-unknown-wasip1-threads', 'wasmthreadsstdlib'), | ||
| ]: | ||
| stdlib_build_path = os.path.join( | ||
| build_root, '%s-%s' % (build_basename, host_target)) | ||
| package_path = self._build_target_package( | ||
| target_triple, stdlib_build_path, llvm_runtime_libs_build_path) | ||
| target_packages.append((target_triple, package_path)) | ||
|
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| swiftc_path = os.path.abspath(self.toolchain.swiftc) | ||
| toolchain_path = os.path.dirname(os.path.dirname(swiftc_path)) | ||
| swift_run = os.path.join(toolchain_path, 'bin', 'swift-run') | ||
|
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| swift_version = os.environ.get('TOOLCHAIN_VERSION', | ||
| 'swift-DEVELOPMENT-SNAPSHOT').lstrip('swift-') | ||
| run_args = [ | ||
| swift_run, | ||
| '--package-path', self.source_dir, | ||
| '--build-path', self.build_dir, | ||
| 'swift-sdk-generator', | ||
| 'make-wasm-sdk', | ||
| '--swift-version', swift_version, | ||
| ] | ||
| for target_triple, package_path in target_packages: | ||
| run_args.extend(['--target', target_triple]) | ||
| run_args.extend(['--target-swift-package-path', package_path]) | ||
| wasi_sysroot = wasisysroot.WASILibc.sysroot_install_path( | ||
| build_root, short_triple) | ||
| run_args.extend(['--wasi-sysroot', wasi_sysroot]) | ||
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| env = dict(os.environ) | ||
| env['SWIFTCI_USE_LOCAL_DEPS'] = '1' | ||
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| shell.call(run_args, env=env) | ||
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| def test(self, host_target): | ||
| pass | ||
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| def should_install(self, host_target): | ||
| return False | ||
|
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||
| @classmethod | ||
| def get_dependencies(cls): | ||
| return [WasmStdlib, WasmThreadsStdlib] |
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Is there a reason we are using main branch now?
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We need to use a revision including apple/swift-async-algorithms@6ae9a05 to make SDK generator build work.
But it's not ideal situation, so I asked a new release including the fix just now apple/swift-async-algorithms#314