| #!/usr/bin/env python2 |
| |
| ''' |
| Tool to manage building of various useful things, such as libc, libc++, native optimizer, as well as fetch and build ports like zlib and sdl2 |
| ''' |
| |
| from __future__ import print_function |
| import os, sys |
| import tools.shared as shared |
| |
| if len(sys.argv) < 2 or sys.argv[1] in ['-v', '-help', '--help', '-?', '?']: |
| print(''' |
| Emscripten System Builder Tool |
| ============================== |
| |
| You can use this tool to manually build parts of the emscripten system |
| environment. 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). |
| |
| Usage: |
| |
| embuilder.py OPERATION TASK1 [TASK2..] |
| |
| Available operations and tasks: |
| |
| build libc |
| libc-mt |
| dlmalloc |
| dlmalloc_threadsafe |
| pthreads |
| libcxx |
| libcxx_noexcept |
| libcxxabi |
| gl |
| native_optimizer |
| binaryen |
| bullet |
| freetype |
| libpng |
| ogg |
| sdl2 |
| sdl2-image |
| sdl2-ttf |
| sdl2-net |
| vorbis |
| zlib |
| cocos2d |
| wasm-libc |
| wasm_compiler_rt |
| |
| Issuing 'embuilder.py build ALL' causes each task to be built. |
| |
| It is also possible to build native_optimizer manually by using CMake. To |
| do that, run |
| |
| 1. cd $EMSCRIPTEN/tools/optimizer |
| 2. cmake . -DCMAKE_BUILD_TYPE=Release |
| 3. make (or mingw32-make/vcbuild/msbuild on Windows) |
| |
| and set up the location to the native optimizer in ~/.emscripten |
| |
| ''') |
| sys.exit(0) |
| |
| C_BARE = ''' |
| int main() {} |
| ''' |
| C_WITH_STDLIB = ''' |
| #include <string.h> |
| int main() { |
| return int(strchr("str", 'c')); |
| } |
| ''' |
| C_WITH_MALLOC = ''' |
| #include <string.h> |
| #include <stdlib.h> |
| int main() { |
| return int(malloc(10)) + int(strchr("str", 'c')); |
| } |
| ''' |
| CXX_WITH_STDLIB = ''' |
| #include <iostream> |
| int main() { |
| std::cout << "hello"; |
| return 0; |
| } |
| ''' |
| |
| SYSTEM_TASKS = ['compiler-rt', 'libc', 'libc-mt', 'dlmalloc', 'dlmalloc_threadsafe', 'pthreads', 'dlmalloc_debug', 'dlmalloc_threadsafe_debug', 'libcxx', 'libcxx_noexcept', 'libcxxabi', 'html5'] |
| USER_TASKS = ['al', 'gl', 'binaryen', 'bullet', 'freetype', 'libpng', 'ogg', 'sdl2', 'sdl2-image', 'sdl2-ttf', 'sdl2-net', 'vorbis', 'zlib'] |
| |
| temp_files = shared.configuration.get_temp_files() |
| |
| def build(src, result_libs, args=[]): |
| # if a library is a .a, also build the .bc, as we need it when forcing a |
| # a system library - in that case, we always want all the code linked in |
| if result_libs: |
| need_forced = [] |
| with_forced = [] |
| for result_lib in result_libs: |
| if result_lib.endswith('.a'): |
| short = result_lib[:-2] |
| if short in SYSTEM_TASKS: |
| need_forced.append(short.replace('_noexcept', '')) |
| with_forced.append(short + '.bc') |
| continue |
| with_forced.append(result_lib) |
| |
| if need_forced: |
| print(str(need_forced)) |
| if os.environ.get('EMCC_FORCE_STDLIBS'): |
| print('skipping forced (.bc) versions of .a libraries, since EMCC_FORCE_STDLIBS already set') |
| else: |
| os.environ['EMCC_FORCE_STDLIBS'] = ','.join(need_forced) |
| try: |
| build(src, with_forced, args) |
| finally: |
| del os.environ['EMCC_FORCE_STDLIBS'] |
| |
| # build in order to generate the libraries |
| with temp_files.get_file('.cpp') as temp: |
| open(temp, 'w').write(src) |
| temp_js = temp_files.get('.js').name |
| shared.Building.emcc(temp, args, output_filename=temp_js) |
| |
| # verify |
| assert os.path.exists(temp_js), 'failed to build file' |
| if result_libs: |
| for lib in result_libs: |
| assert os.path.exists(shared.Cache.get_path(lib)), 'not seeing that requested library %s has been built because file %s does not exist' % (lib, shared.Cache.get_path(lib)) |
| |
| |
| def build_port(port_name, lib_name, params): |
| build(C_BARE, [os.path.join('ports-builds', port_name, lib_name)] if lib_name else None, params) |
| |
| |
| operation = sys.argv[1] |
| |
| if operation == 'build': |
| auto_tasks = False |
| tasks = sys.argv[2:] |
| if 'SYSTEM' in tasks: |
| tasks = SYSTEM_TASKS |
| auto_tasks = True |
| if 'ALL' in tasks: |
| tasks = SYSTEM_TASKS + USER_TASKS |
| auto_tasks = True |
| if auto_tasks: |
| if shared.Settings.WASM_BACKEND: |
| skip_tasks = {'libc-mt', 'dlmalloc_threadsafe', 'dlmalloc_threadsafe_debug', 'pthreads'} |
| print('Skipping building of %s, because WebAssembly does not support pthreads.' % ', '.join(skip_tasks)) |
| tasks = [x for x in tasks if x not in skip_tasks] |
| else: |
| if os.environ.get('EMSCRIPTEN_NATIVE_OPTIMIZER'): |
| print('Skipping building of native-optimizer since environment variable EMSCRIPTEN_NATIVE_OPTIMIZER is present and set to point to a prebuilt native optimizer path.') |
| elif hasattr(shared, 'EMSCRIPTEN_NATIVE_OPTIMIZER'): |
| print('Skipping building of native-optimizer since .emscripten config file has set EMSCRIPTEN_NATIVE_OPTIMIZER to point to a prebuilt native optimizer path.') |
| else: |
| tasks += ['native_optimizer'] |
| print('Building targets: %s' % ' '.join(tasks)) |
| for what in tasks: |
| shared.logging.info('building and verifying ' + what) |
| if what == 'compiler-rt': |
| build(''' |
| int main() { |
| double _Complex a, b, c; |
| c = a / b; |
| return 0; |
| } |
| ''', ['compiler-rt.a']) |
| elif what in ('libc', 'dlmalloc'): |
| build(C_WITH_MALLOC, ['libc.bc', 'dlmalloc.bc']) |
| elif what == 'wasm-libc': |
| build(C_WITH_STDLIB, ['wasm-libc.bc'], ['-s', 'WASM=1']) |
| elif what in ('libc-mt', 'pthreads', 'dlmalloc_threadsafe'): |
| build(C_WITH_MALLOC, ['libc-mt.bc', 'dlmalloc_threadsafe.bc', 'pthreads.bc'], ['-s', 'USE_PTHREADS=1']) |
| elif what == 'dlmalloc_debug': |
| build(C_WITH_MALLOC, ['dlmalloc_debug.bc'], ['-g']) |
| elif what == 'dlmalloc_threadsafe_debug': |
| build(C_WITH_MALLOC, ['dlmalloc_threadsafe_debug.bc'], ['-g', '-s', 'USE_PTHREADS=1']) |
| elif what == 'libcxx': |
| build(CXX_WITH_STDLIB, ['libcxx.a']) |
| elif what == 'libcxx_noexcept': |
| build(CXX_WITH_STDLIB, ['libcxx_noexcept.a'], ['-s', 'DISABLE_EXCEPTION_CATCHING=1']) |
| elif what == 'libcxxabi': |
| build(''' |
| struct X { int x; virtual void a() {} }; |
| struct Y : X { int y; virtual void a() { y = 10; }}; |
| int main(int argc, char **argv) { |
| Y* y = dynamic_cast<Y*>((X*)argv[1]); |
| y->a(); |
| return y->y; |
| } |
| ''', ['libcxxabi.bc']) |
| elif what == 'gl': |
| build(''' |
| extern "C" { extern void* emscripten_GetProcAddress(const char *x); } |
| int main() { |
| return int(emscripten_GetProcAddress("waka waka")); |
| } |
| ''', ['gl.bc']) |
| elif what == 'native_optimizer': |
| build(C_BARE, ['optimizer.2.exe'], ['-O2']) |
| elif what == 'wasm_compiler_rt': |
| if shared.Settings.WASM_BACKEND: |
| build(C_BARE, ['wasm_compiler_rt.a'], ['-s', 'WASM=1']) |
| else: |
| shared.logging.warning('wasm_compiler_rt not built when using JSBackend') |
| elif what == 'html5': |
| build(''' |
| #include <stdlib.h> |
| #include "emscripten/key_codes.h" |
| int main() { |
| return emscripten_compute_dom_pk_code(NULL); |
| } |
| |
| ''', ['html5.bc']) |
| elif what == 'al': |
| build(''' |
| #include "AL/al.h" |
| int main() { |
| alGetProcAddress(0); |
| return 0; |
| } |
| ''', ['al.bc']) |
| elif what == 'zlib': |
| build_port('zlib', 'libz.a', ['-s', 'USE_ZLIB=1']) |
| elif what == 'bullet': |
| build_port('bullet', 'libbullet.bc', ['-s', 'USE_BULLET=1']) |
| elif what == 'vorbis': |
| build_port('vorbis', 'libvorbis.bc', ['-s', 'USE_VORBIS=1']) |
| elif what == 'ogg': |
| build_port('ogg', 'libogg.bc', ['-s', 'USE_OGG=1']) |
| elif what == 'libpng': |
| build_port('libpng', 'libpng.bc', ['-s', 'USE_ZLIB=1', '-s', 'USE_LIBPNG=1']) |
| elif what == 'sdl2': |
| build_port('sdl2', 'libsdl2.bc', ['-s', 'USE_SDL=2']) |
| elif what == 'sdl2-image': |
| build_port('sdl2-image', 'libsdl2_image.bc', ['-s', 'USE_SDL=2', '-s', 'USE_SDL_IMAGE=2']) |
| elif what == 'sdl2-net': |
| build_port('sdl2-net', 'libsdl2_net.bc', ['-s', 'USE_SDL=2', '-s', 'USE_SDL_NET=2']) |
| elif what == 'freetype': |
| build_port('freetype', 'libfreetype.a', ['-s', 'USE_FREETYPE=1']) |
| elif what == 'sdl2-ttf': |
| build_port('sdl2-ttf', 'libsdl2_ttf.bc', ['-s', 'USE_SDL=2', '-s', 'USE_SDL_TTF=2', '-s', 'USE_FREETYPE=1']) |
| elif what == 'binaryen': |
| build_port('binaryen', None, ['-s', 'WASM=1']) |
| elif what == 'cocos2d': |
| build_port('cocos2d', None, ['-s', 'USE_COCOS2D=3', '-s', 'USE_ZLIB=1', '-s', 'USE_LIBPNG=1']) |
| else: |
| shared.logging.error('unfamiliar build target: ' + what) |
| sys.exit(1) |
| |
| shared.logging.info('...success') |
| |
| else: |
| shared.logging.error('unfamiliar operation: ' + operation) |
| sys.exit(1) |
