| #!/usr/bin/env python3 |
| # Copyright 2014 The Emscripten Authors. All rights reserved. |
| # Emscripten is available under two separate licenses, the MIT license and the |
| # University of Illinois/NCSA Open Source License. Both these licenses can be |
| # found in the LICENSE file. |
| |
| """Tool to manage building of system libraries and ports. |
| |
| In general emcc will build them automatically on demand, so you do not |
| strictly need to use this tool, but it gives you more control over the |
| process (in particular, if emcc does this automatically, and you are |
| running multiple build commands in parallel, confusion can occur). |
| """ |
| |
| import argparse |
| import logging |
| import sys |
| import time |
| |
| from tools import shared |
| from tools import system_libs |
| from tools import ports |
| from tools.settings import settings |
| import emscripten |
| |
| |
| SYSTEM_LIBRARIES = system_libs.Library.get_all_variations() |
| SYSTEM_TASKS = list(SYSTEM_LIBRARIES.keys()) |
| |
| # This is needed to build the generated_struct_info.json file. |
| # It is not a system library, but it needs to be built before running with FROZEN_CACHE. |
| SYSTEM_TASKS += ['struct_info'] |
| |
| # Minimal subset of SYSTEM_TASKS used by CI systems to build enough to useful |
| MINIMAL_TASKS = [ |
| 'libcompiler_rt', |
| 'libc', |
| 'libc++abi', |
| 'libc++abi-except', |
| 'libc++abi-noexcept', |
| 'libc++', |
| 'libc++-except', |
| 'libc++-noexcept', |
| 'libal', |
| 'libdlmalloc', |
| 'libdlmalloc-debug', |
| 'libemmalloc', |
| 'libemmalloc-debug', |
| 'libemmalloc-memvalidate', |
| 'libemmalloc-verbose', |
| 'libemmalloc-memvalidate-verbose', |
| 'libGL', |
| 'libhtml5', |
| 'libsockets', |
| 'libc_rt_wasm', |
| 'libc_rt_wasm-optz', |
| 'struct_info', |
| 'libstandalonewasm', |
| 'crt1', |
| 'libunwind-except' |
| ] |
| |
| # Variant builds that we want to support for cetain ports |
| # TODO: It would be nice if the ports themselves could specify the variants that they |
| # support. |
| PORT_VARIANTS = { |
| 'regal-mt': ('regal', {'USE_PTHREADS': 1}), |
| 'harfbuzz-mt': ('harfbuzz', {'USE_PTHREADS': 1}), |
| 'sdl2-mt': ('sdl2', {'USE_PTHREADS': 1}), |
| 'sdl2_mixer_mp3': ('sdl2_mixer', {'SDL2_MIXER_FORMATS': ["mp3"]}), |
| 'sdl2_mixer_none': ('sdl2_mixer', {'SDL2_MIXER_FORMATS': []}), |
| 'sdl2_image_png': ('sdl2_image', {'SDL2_IMAGE_FORMATS': ["png"]}), |
| 'sdl2_image_jpg': ('sdl2_image', {'SDL2_IMAGE_FORMATS': ["jpg"]}), |
| } |
| |
| PORTS = sorted(list(ports.ports_by_name.keys()) + list(PORT_VARIANTS.keys())) |
| |
| temp_files = shared.configuration.get_temp_files() |
| logger = logging.getLogger('embuilder') |
| force = False |
| legacy_prefixes = { |
| 'libgl': 'libGL', |
| } |
| |
| |
| def get_help(): |
| all_tasks = SYSTEM_TASKS + PORTS |
| all_tasks.sort() |
| return ''' |
| Available targets: |
| |
| build %s |
| |
| Issuing 'embuilder.py build ALL' causes each task to be built. |
| ''' % '\n '.join(all_tasks) |
| |
| |
| def build_port(port_name): |
| if port_name in PORT_VARIANTS: |
| port_name, extra_settings = PORT_VARIANTS[port_name] |
| old_settings = settings.dict().copy() |
| for key, value in extra_settings.items(): |
| setattr(settings, key, value) |
| else: |
| old_settings = None |
| |
| if force: |
| ports.clear_port(port_name, settings) |
| |
| ports.build_port(port_name, settings) |
| if old_settings: |
| settings.dict().update(old_settings) |
| |
| |
| def main(): |
| global force |
| |
| all_build_start_time = time.time() |
| |
| parser = argparse.ArgumentParser(description=__doc__, |
| formatter_class=argparse.RawDescriptionHelpFormatter, |
| epilog=get_help()) |
| parser.add_argument('--lto', action='store_true', help='build bitcode object for LTO') |
| parser.add_argument('--pic', action='store_true', |
| help='build relocatable objects for suitable for dynamic linking') |
| parser.add_argument('--force', action='store_true', |
| help='force rebuild of target (by removing it first)') |
| parser.add_argument('operation', help='currently only "build" is supported') |
| parser.add_argument('targets', nargs='+', help='see below') |
| args = parser.parse_args() |
| |
| if args.operation != 'build': |
| shared.exit_with_error('unfamiliar operation: ' + args.operation) |
| |
| # process flags |
| |
| # Check sanity so that if settings file has changed, the cache is cleared here. |
| # Otherwise, the cache will clear in an emcc process, which is invoked while building |
| # a system library into the cache, causing trouble. |
| shared.check_sanity() |
| |
| if args.lto: |
| settings.LTO = "full" |
| |
| if args.pic: |
| settings.RELOCATABLE = 1 |
| |
| if args.force: |
| force = True |
| |
| # process tasks |
| auto_tasks = False |
| tasks = args.targets |
| if 'SYSTEM' in tasks: |
| tasks = SYSTEM_TASKS |
| auto_tasks = True |
| elif 'USER' in tasks: |
| tasks = PORTS |
| auto_tasks = True |
| elif 'MINIMAL' in tasks: |
| tasks = MINIMAL_TASKS |
| auto_tasks = True |
| elif 'ALL' in tasks: |
| tasks = SYSTEM_TASKS + PORTS |
| auto_tasks = True |
| if auto_tasks: |
| # cocos2d: must be ported, errors on |
| # "Cannot recognize the target platform; are you targeting an unsupported platform?" |
| skip_tasks = ['cocos2d'] |
| tasks = [x for x in tasks if x not in skip_tasks] |
| print('Building targets: %s' % ' '.join(tasks)) |
| for what in tasks: |
| for old, new in legacy_prefixes.items(): |
| if what.startswith(old): |
| what = what.replace(old, new) |
| logger.info('building and verifying ' + what) |
| start_time = time.time() |
| if what in SYSTEM_LIBRARIES: |
| library = SYSTEM_LIBRARIES[what] |
| if force: |
| library.erase() |
| library.get_path() |
| elif what == 'sysroot': |
| if force: |
| shared.Cache.erase_file('sysroot_install.stamp') |
| system_libs.ensure_sysroot() |
| elif what == 'struct_info': |
| if force: |
| shared.Cache.erase_file('generated_struct_info.json') |
| emscripten.generate_struct_info() |
| elif what in PORTS: |
| build_port(what) |
| else: |
| logger.error('unfamiliar build target: ' + what) |
| return 1 |
| |
| time_taken = time.time() - start_time |
| logger.info('...success. Took %s(%.2fs)' % (('%02d:%02d mins ' % (time_taken // 60, time_taken % 60) if time_taken >= 60 else ''), time_taken)) |
| |
| if len(tasks) > 1: |
| all_build_time_taken = time.time() - all_build_start_time |
| logger.info('Built %d targets in %s(%.2fs)' % (len(tasks), ('%02d:%02d mins ' % (all_build_time_taken // 60, all_build_time_taken % 60) if all_build_time_taken >= 60 else ''), all_build_time_taken)) |
| |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| try: |
| sys.exit(main()) |
| except KeyboardInterrupt: |
| logger.warning("KeyboardInterrupt") |
| sys.exit(1) |