emscripten/embuilder.py at universal-python · JavaScriptIOT/emscripten · GitHub

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#!/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

'''

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

struct_info

native_optimizer

bullet

freetype

libpng

ogg

sdl2

sdl2-image

sdl2-ttf

vorbis

zlib

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)

temp_files = shared.configuration.get_temp_files()

def build(src, result_libs, args=[]):

temp = temp_files.get('.cpp').name

open(temp, 'w').write(src)

temp_js = temp_files.get('.js').name

shared.Building.emcc(temp, args, output_filename=temp_js)

assert os.path.exists(temp_js), 'failed to build file'

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('''

int main() {}

''', [os.path.join('ports-builds', port_name, lib_name)], params)

operation = sys.argv[1]

if operation == 'build':

tasks = sys.argv[2:]

if 'ALL' in tasks:

tasks = ['libc', 'libc-mt', 'dlmalloc', 'dlmalloc_threadsafe', 'pthreads', 'libcxx', 'libcxx_noexcept', 'libcxxabi', 'gl', 'struct_info', 'bullet', 'freetype', 'libpng', 'ogg', 'sdl2', 'sdl2-image', 'vorbis', 'zlib']

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']

for what in tasks:

shared.logging.info('building and verifying ' + what)

if what in ('libc', 'dlmalloc'):

build('''

#include <string.h>

#include <stdlib.h>

int main() {

return int(malloc(10)) + int(strchr("str", 'c'));

}

''', ['libc.bc', 'dlmalloc.bc'])

elif what in ('libc-mt', 'pthreads', 'dlmalloc_threadsafe'):

build('''

#include <string.h>

#include <stdlib.h>

int main() {

return int(malloc(10)) + int(strchr("str", 'c'));

}

''', ['libc-mt.bc', 'dlmalloc_threadsafe.bc', 'pthreads.bc'], ['-s', 'USE_PTHREADS=1'])

elif what == 'libcxx':

build('''

#include <iostream>

int main() {

std::cout << "hello";

return 0;

}

''', ['libcxx.a'])

elif what == 'libcxx_noexcept':

build('''

#include <iostream>

int main() {

std::cout << "hello";

return 0;

}

''', ['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 == 'struct_info':

build('''

int main() {}

''', ['struct_info.compiled.json'])

elif what == 'native_optimizer':

build('''

int main() {}

''', ['optimizer.exe'], ['-O2'])

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 == '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'])

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)

emscripten/embuilder.py at universal-python · JavaScriptIOT/emscripten · GitHub

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