From 652c51f7c8fb1a90bcec89b060ae923b974c8332 Date: Thu, 15 Apr 2021 02:27:15 +0530 Subject: [PATCH] [build] Allow cross-compiling build-script products for non-Darwin hosts too To that end, move the --cross-compile-deps-path flag from build-script-impl to a publicly documented build-script flag and use it for build-script products' library dependencies too. Generate a SPM destination JSON file that can be used both for cross-compiling these build-script products and by users for their own Swift packages. Also, make using a prebuilt toolchain explicit and pass an install prefix in to swift-driver. diff --git a/swift/utils/build-script b/swift/utils/build-script index e19967df1fa40..afd6d76933987 100755 --- a/swift/utils/build-script +++ b/swift/utils/build-script @@ -558,6 +558,10 @@ class BuildScriptInvocation(object): if args.cross_compile_hosts: impl_args += [ "--cross-compile-hosts", " ".join(args.cross_compile_hosts)] + if args.cross_compile_deps_path is not None: + impl_args += [ + "--cross-compile-deps-path=%s" % args.cross_compile_deps_path + ] if args.test_paths: impl_args += ["--test-paths", " ".join(args.test_paths)] @@ -1075,9 +1079,14 @@ class BuildScriptInvocation(object): # Core Lipo... self._execute_merged_host_lipo_core_action() + non_darwin_cross_compile_hostnames = [ + target for target in self.args.cross_compile_hosts if not + StdlibDeploymentTarget.get_target_for_name(target).platform.is_darwin] # Non-build-script-impl products... - # Note: currently only supports building for the host. - for host_target in [self.args.host_target]: + # Note: currently only supports cross-compiling for non-Darwin hosts. + for host_target in [self.args.host_target] + non_darwin_cross_compile_hostnames: + if self.args.skip_local_build and host_target == self.args.host_target: + continue for product_class in product_classes: if product_class.is_build_script_impl_product(): continue diff --git a/swift/utils/build_swift/build_swift/driver_arguments.py b/swift/utils/build_swift/build_swift/driver_arguments.py index 850c30dce3d86..fcd2f52f349be 100644 --- a/swift/utils/build_swift/build_swift/driver_arguments.py +++ b/swift/utils/build_swift/build_swift/driver_arguments.py @@ -558,6 +558,11 @@ def create_argument_parser(): help='A space separated list of targets to cross-compile host ' 'Swift tools for. Can be used multiple times.') + option('--cross-compile-deps-path', store_path, + help='The path to a directory that contains prebuilt cross-compiled ' + 'library dependencies of the corelibs and other Swift repos, ' + 'such as the libcurl dependency of FoundationNetworking') + option('--stdlib-deployment-targets', store, type=argparse.ShellSplitType(), default=None, diff --git a/swift/utils/build_swift/tests/expected_options.py b/swift/utils/build_swift/tests/expected_options.py index bc0041beea192..fa15ca93bb897 100644 --- a/swift/utils/build_swift/tests/expected_options.py +++ b/swift/utils/build_swift/tests/expected_options.py @@ -128,6 +128,7 @@ 'cmark_build_variant': 'Debug', 'compiler_vendor': defaults.COMPILER_VENDOR, 'coverage_db': None, + 'cross_compile_deps_path': None, 'cross_compile_hosts': [], 'darwin_deployment_version_ios': defaults.DARWIN_DEPLOYMENT_VERSION_IOS, @@ -673,6 +674,7 @@ class BuildScriptImplOption(_BaseOption): PathOption('--clang-profile-instr-use'), PathOption('--cmake'), PathOption('--coverage-db'), + PathOption('--cross-compile-deps-path'), PathOption('--host-cc'), PathOption('--host-cxx'), PathOption('--host-libtool'), diff --git a/swift/utils/swift_build_support/swift_build_support/products/product.py b/swift/utils/swift_build_support/swift_build_support/products/product.py index fd202b8cf1738..741353f15ce45 100644 --- a/swift/utils/swift_build_support/swift_build_support/products/product.py +++ b/swift/utils/swift_build_support/swift_build_support/products/product.py @@ -195,15 +195,17 @@ def install_toolchain_path(self, host_target): """toolchain_path() -> string Returns the path to the toolchain that is being created as part of this - build, or to a native prebuilt toolchain that was passed in. + build """ - if self.args.native_swift_tools_path is not None: - return os.path.split(self.args.native_swift_tools_path)[0] - install_destdir = self.args.install_destdir if self.args.cross_compile_hosts: - build_root = os.path.dirname(self.build_dir) - install_destdir = '%s/intermediate-install/%s' % (build_root, host_target) + if targets.StdlibDeploymentTarget.get_target_for_name( + host_target).platform.is_darwin: + build_root = os.path.dirname(self.build_dir) + install_destdir = '%s/intermediate-install/%s' % (build_root, + host_target) + else: + install_destdir = os.path.join(install_destdir, self.args.host_target) return targets.toolchain_path(install_destdir, self.args.install_prefix) diff --git a/swift/utils/swift_build_support/swift_build_support/products/swiftdriver.py b/swift/utils/swift_build_support/swift_build_support/products/swiftdriver.py index 3bd5755de35be..c30b032886d0a 100644 --- a/swift/utils/swift_build_support/swift_build_support/products/swiftdriver.py +++ b/swift/utils/swift_build_support/swift_build_support/products/swiftdriver.py @@ -91,8 +91,10 @@ def run_build_script_helper(action, host_target, product, args): install_destdir = swiftpm.SwiftPM.get_install_destdir(args, host_target, product.build_dir) - toolchain_path = targets.toolchain_path(install_destdir, - args.install_prefix) + if args.native_swift_tools_path is not None: + toolchain_path = os.path.split(args.native_swift_tools_path)[0] + else: + toolchain_path = product.install_toolchain_path(host_target) # Pass Dispatch directory down if we built it dispatch_build_dir = os.path.join( @@ -134,7 +136,29 @@ def run_build_script_helper(action, host_target, product, args): helper_cmd += [ '--lit-test-dir', lit_test_dir ] + # Pass Cross compile host info + if swiftpm.SwiftPM.has_cross_compile_hosts(args): + if targets.StdlibDeploymentTarget.get_target_for_name( + host_target).platform.is_darwin: + helper_cmd += ['--cross-compile-hosts'] + for cross_compile_host in args.cross_compile_hosts: + helper_cmd += [cross_compile_host] + elif host_target != args.host_target: + helper_cmd += ['--cross-compile-hosts', host_target] + build_toolchain_path = install_destdir + args.install_prefix + resource_dir = '%s/lib/swift' % build_toolchain_path + helper_cmd += [ + '--cross-compile-config', + targets.StdlibDeploymentTarget.get_target_for_name( + host_target).platform.swiftpm_config( + args, output_dir=build_toolchain_path, + swift_toolchain=toolchain_path, resource_path=resource_dir)] if args.verbose_build: helper_cmd.append('--verbose') + if action == 'install': + helper_cmd += [ + '--prefix', install_destdir + args.install_prefix + ] + shell.call(helper_cmd) diff --git a/swift/utils/swift_build_support/swift_build_support/products/swiftpm.py b/swift/utils/swift_build_support/swift_build_support/products/swiftpm.py index 4a97f377ef408..47a893a98ca16 100644 --- a/swift/utils/swift_build_support/swift_build_support/products/swiftpm.py +++ b/swift/utils/swift_build_support/swift_build_support/products/swiftpm.py @@ -23,6 +23,7 @@ from . import swift from . import xctest from .. import shell +from ..targets import StdlibDeploymentTarget class SwiftPM(product.Product): @@ -44,7 +45,11 @@ def should_build(self, host_target): def run_bootstrap_script(self, action, host_target, additional_params=[]): script_path = os.path.join( self.source_dir, 'Utilities', 'bootstrap') - toolchain_path = self.install_toolchain_path(host_target) + + if self.args.native_swift_tools_path is not None: + toolchain_path = os.path.split(self.args.native_swift_tools_path)[0] + else: + toolchain_path = self.install_toolchain_path(host_target) swiftc = os.path.join(toolchain_path, "bin", "swiftc") # FIXME: We require llbuild build directory in order to build. Is @@ -92,9 +97,23 @@ def run_bootstrap_script(self, action, host_target, additional_params=[]): # Pass Cross compile host info if self.has_cross_compile_hosts(self.args): - helper_cmd += ['--cross-compile-hosts'] - for cross_compile_host in self.args.cross_compile_hosts: - helper_cmd += [cross_compile_host] + if StdlibDeploymentTarget.get_target_for_name( + host_target).platform.is_darwin: + helper_cmd += ['--cross-compile-hosts'] + for cross_compile_host in self.args.cross_compile_hosts: + helper_cmd += [cross_compile_host] + elif host_target != self.args.host_target: + helper_cmd += ['--cross-compile-hosts', host_target, + '--skip-cmake-bootstrap'] + build_toolchain_path = self.get_install_destdir( + self.args, host_target, self.build_dir) + self.args.install_prefix + resource_dir = '%s/lib/swift' % build_toolchain_path + helper_cmd += [ + '--cross-compile-config', + StdlibDeploymentTarget.get_target_for_name(host_target).platform + .swiftpm_config(self.args, output_dir=build_toolchain_path, + swift_toolchain=toolchain_path, + resource_path=resource_dir)] helper_cmd.extend(additional_params) @@ -126,8 +145,13 @@ def has_cross_compile_hosts(self, args): def get_install_destdir(self, args, host_target, build_dir): install_destdir = args.install_destdir if self.has_cross_compile_hosts(args): - build_root = os.path.dirname(build_dir) - install_destdir = '%s/intermediate-install/%s' % (build_root, host_target) + if StdlibDeploymentTarget.get_target_for_name( + host_target).platform.is_darwin: + build_root = os.path.dirname(build_dir) + install_destdir = '%s/intermediate-install/%s' % ( + build_root, host_target) + else: + install_destdir = os.path.join(install_destdir, host_target) return install_destdir def install(self, host_target): diff --git a/swift/utils/swift_build_support/swift_build_support/targets.py b/swift/utils/swift_build_support/swift_build_support/targets.py index 34364458ec736..b6cedb3908f48 100644 --- a/swift/utils/swift_build_support/swift_build_support/targets.py +++ b/swift/utils/swift_build_support/swift_build_support/targets.py @@ -80,6 +80,13 @@ def cmake_options(self, args): """ return '' + def swiftpm_config(self, args, output_dir, swift_toolchain, resource_path): + """ + Generate a JSON file that SPM can use to cross-compile + """ + raise NotImplementedError('Generating a SwiftPM cross-compilation JSON file ' + 'for %s is not supported yet' % self.name) + class DarwinPlatform(Platform): def __init__(self, name, archs, sdk_name=None, is_simulator=False): @@ -155,8 +162,7 @@ def swift_flags(self, args): flags += '-resource-dir %s/swift-%s-%s/lib/swift ' % ( args.build_root, self.name, args.android_arch) - android_toolchain_path = '%s/toolchains/llvm/prebuilt/%s' % ( - args.android_ndk, StdlibDeploymentTarget.host_target().name) + android_toolchain_path = self.ndk_toolchain_path(args) flags += '-sdk %s/sysroot ' % (android_toolchain_path) flags += '-tools-directory %s/bin' % (android_toolchain_path) @@ -171,6 +177,46 @@ def cmake_options(self, args): options += '-DCMAKE_ANDROID_NDK:PATH=%s' % (args.android_ndk) return options + def ndk_toolchain_path(self, args): + return '%s/toolchains/llvm/prebuilt/%s' % ( + args.android_ndk, StdlibDeploymentTarget.host_target().name) + + def swiftpm_config(self, args, output_dir, swift_toolchain, resource_path): + config_file = '%s/swiftpm-android-%s.json' % (output_dir, args.android_arch) + + if os.path.exists(config_file): + return config_file + + spm_json = '{\n' + spm_json += ' "version": 1,\n' + spm_json += ' "target": "%s-unknown-linux-android",\n' % args.android_arch + spm_json += ' "toolchain-bin-dir": "%s/bin",\n' % swift_toolchain + spm_json += ' "sdk": "%s/sysroot",\n' % self.ndk_toolchain_path(args) + + spm_json += ' "extra-cc-flags": [ "-fPIC", "-I%s/usr/include" ],\n' % ( + args.cross_compile_deps_path) + + spm_json += ' "extra-swiftc-flags": [\n' + spm_json += ' "-resource-dir", "%s",\n' % resource_path + spm_json += ' "-tools-directory", "%s/bin",\n' % ( + self.ndk_toolchain_path(args)) + spm_json += ' "-Xcc", "-I%s/usr/include",\n' % args.cross_compile_deps_path + spm_json += ' "-L%s/usr/lib",\n' % args.cross_compile_deps_path + spm_json += ' "-L%s/lib/gcc/%s-linux-android%s/%s.x/%s"\n' % ( + self.ndk_toolchain_path(args), + args.android_arch if not args.android_arch == 'armv7' else 'arm', + '' if not args.android_arch == 'armv7' else 'eabi', + args.android_ndk_gcc_version, + '' if not args.android_arch == 'armv7' else 'armv7-a') + spm_json += ' ],\n' + + spm_json += ' "extra-cpp-flags": [ "-lstdc++" ]\n' + spm_json += '}' + + with open(config_file, 'w') as f: + f.write(spm_json) + return config_file + class Target(object): """