diff options
Diffstat (limited to 'tools/shared.py')
| -rw-r--r-- | tools/shared.py | 352 |
1 files changed, 82 insertions, 270 deletions
diff --git a/tools/shared.py b/tools/shared.py index ce61b735..6434fb06 100644 --- a/tools/shared.py +++ b/tools/shared.py @@ -1,6 +1,7 @@ -import shutil, time, os, sys, json, tempfile, copy, shlex, atexit, subprocess, hashlib, cPickle +import shutil, time, os, sys, json, tempfile, copy, shlex, atexit, subprocess, hashlib, cPickle, re from subprocess import Popen, PIPE, STDOUT from tempfile import mkstemp +import jsrun, cache, tempfiles def listify(x): if type(x) is not list: return [x] @@ -180,7 +181,7 @@ def check_node_version(): # we re-check sanity when the settings are changed) # We also re-check sanity and clear the cache when the version changes -EMSCRIPTEN_VERSION = '1.2.4' +EMSCRIPTEN_VERSION = '1.2.8' def check_sanity(force=False): try: @@ -289,34 +290,50 @@ AUTODEBUGGER = path_from_root('tools', 'autodebugger.py') BINDINGS_GENERATOR = path_from_root('tools', 'bindings_generator.py') EXEC_LLVM = path_from_root('tools', 'exec_llvm.py') FILE_PACKAGER = path_from_root('tools', 'file_packager.py') -RELOOPER = path_from_root('src', 'relooper.js') # Temp dir. Create a random one, unless EMCC_DEBUG is set, in which case use TEMP_DIR/emscripten_temp -try: - TEMP_DIR -except: - print >> sys.stderr, 'TEMP_DIR not defined in ~/.emscripten, using /tmp' - TEMP_DIR = '/tmp' +class Configuration: + def __init__(self, environ): + self.DEBUG = environ.get('EMCC_DEBUG') + if self.DEBUG == "0": + self.DEBUG = None + self.DEBUG_CACHE = self.DEBUG and "cache" in self.DEBUG + self.EMSCRIPTEN_TEMP_DIR = None -CANONICAL_TEMP_DIR = os.path.join(TEMP_DIR, 'emscripten_temp') -EMSCRIPTEN_TEMP_DIR = None + try: + self.TEMP_DIR = TEMP_DIR + except NameError: + print >> sys.stderr, 'TEMP_DIR not defined in ~/.emscripten, using /tmp' + self.TEMP_DIR = '/tmp' -DEBUG = os.environ.get('EMCC_DEBUG') -if DEBUG == "0": - DEBUG = None -DEBUG_CACHE = DEBUG and "cache" in DEBUG + self.CANONICAL_TEMP_DIR = os.path.join(self.TEMP_DIR, 'emscripten_temp') -if DEBUG: - try: - EMSCRIPTEN_TEMP_DIR = CANONICAL_TEMP_DIR - if not os.path.exists(EMSCRIPTEN_TEMP_DIR): - os.makedirs(EMSCRIPTEN_TEMP_DIR) - except Exception, e: - print >> sys.stderr, e, 'Could not create canonical temp dir. Check definition of TEMP_DIR in ~/.emscripten' + if self.DEBUG: + try: + self.EMSCRIPTEN_TEMP_DIR = self.CANONICAL_TEMP_DIR + if not os.path.exists(self.EMSCRIPTEN_TEMP_DIR): + os.makedirs(self.EMSCRIPTEN_TEMP_DIR) + except Exception, e: + print >> sys.stderr, e, 'Could not create canonical temp dir. Check definition of TEMP_DIR in ~/.emscripten' + + def get_temp_files(self): + return tempfiles.TempFiles( + tmp=self.TEMP_DIR if not self.DEBUG else self.EMSCRIPTEN_TEMP_DIR, + save_debug_files=os.environ.get('EMCC_DEBUG_SAVE')) + + def debug_log(self, msg): + if self.DEBUG: + print >> sys.stderr, msg + +configuration = Configuration(environ=os.environ) +DEBUG = configuration.DEBUG +EMSCRIPTEN_TEMP_DIR = configuration.EMSCRIPTEN_TEMP_DIR +DEBUG_CACHE = configuration.DEBUG_CACHE +CANONICAL_TEMP_DIR = configuration.CANONICAL_TEMP_DIR if not EMSCRIPTEN_TEMP_DIR: - EMSCRIPTEN_TEMP_DIR = tempfile.mkdtemp(prefix='emscripten_temp_', dir=TEMP_DIR) + EMSCRIPTEN_TEMP_DIR = tempfile.mkdtemp(prefix='emscripten_temp_', dir=configuration.TEMP_DIR) def clean_temp(): try_delete(EMSCRIPTEN_TEMP_DIR) atexit.register(clean_temp) @@ -414,42 +431,7 @@ if not WINDOWS: pass # Temp file utilities - -def try_delete(filename): - try: - os.unlink(filename) - except: - try: - shutil.rmtree(filename) - except: - pass - -class TempFiles: - def __init__(self): - self.to_clean = [] - - def note(self, filename): - self.to_clean.append(filename) - - def get(self, suffix): - """Returns a named temp file with the given prefix.""" - named_file = tempfile.NamedTemporaryFile(dir=TEMP_DIR if not DEBUG else EMSCRIPTEN_TEMP_DIR, suffix=suffix, delete=False) - self.note(named_file.name) - return named_file - - def clean(self): - if os.environ.get('EMCC_DEBUG_SAVE'): - print >> sys.stderr, 'not cleaning up temp files since in debug-save mode, see them in %s' % EMSCRIPTEN_TEMP_DIR - return - for filename in self.to_clean: - try_delete(filename) - self.to_clean = [] - - def run_and_clean(self, func): - try: - return func() - finally: - self.clean() +from tempfiles import try_delete # Utilities @@ -463,23 +445,10 @@ def check_engine(engine): print 'Checking JS engine %s failed. Check %s. Details: %s' % (str(engine), EM_CONFIG, str(e)) return False -def timeout_run(proc, timeout, note='unnamed process', full_output=False): - start = time.time() - if timeout is not None: - while time.time() - start < timeout and proc.poll() is None: - time.sleep(0.1) - if proc.poll() is None: - proc.kill() # XXX bug: killing emscripten.py does not kill it's child process! - raise Exception("Timed out: " + note) - out = proc.communicate() - return '\n'.join(out) if full_output else out[0] - -def run_js(filename, engine=None, args=[], check_timeout=False, stdout=PIPE, stderr=None, cwd=None, full_output=False): - if engine is None: engine = JS_ENGINES[0] - engine = listify(engine) - #if not WINDOWS: 'd8' in engine[0] or 'node' in engine[0]: engine += ['--stack_size=8192'] # needed for some big projects - command = engine + [filename] + (['--'] if 'd8' in engine[0] else []) + args - return timeout_run(Popen(command, stdout=stdout, stderr=stderr, cwd=cwd), 15*60 if check_timeout else None, 'Execution', full_output=full_output) +def run_js(filename, engine=None, *args, **kw): + if engine is None: + engine = JS_ENGINES[0] + return jsrun.run_js(filename, engine, *args, **kw) def to_cc(cxx): # By default, LLVM_GCC and CLANG are really the C++ versions. This gets an explicit C version @@ -654,7 +623,7 @@ set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)''' % { 'winfix': '' if not WINDOWS e .replace('$EMSCRIPTEN_ROOT', path_from_root('').replace('\\', '/')) \ .replace('$CFLAGS', env['CFLAGS']) \ .replace('$CXXFLAGS', env['CFLAGS']) - toolchainFile = mkstemp(suffix='.cmaketoolchain.txt', dir=TEMP_DIR)[1] + toolchainFile = mkstemp(suffix='.cmaketoolchain.txt', dir=configuration.TEMP_DIR)[1] open(toolchainFile, 'w').write(CMakeToolchain) args.append('-DCMAKE_TOOLCHAIN_FILE=%s' % os.path.abspath(toolchainFile)) return args @@ -968,8 +937,9 @@ set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)''' % { 'winfix': '' if not WINDOWS e os.environ['EMSCRIPTEN_SUPPRESS_USAGE_WARNING'] = '1' # Run Emscripten + Settings.RELOOPER = Cache.get_path('relooper.js') settings = Settings.serialize() - compiler_output = timeout_run(Popen([PYTHON, EMSCRIPTEN, filename + ('.o.ll' if append_ext else ''), '-o', filename + '.o.js'] + settings + extra_args, stdout=PIPE), None, 'Compiling') + compiler_output = jsrun.timeout_run(Popen([PYTHON, EMSCRIPTEN, filename + ('.o.ll' if append_ext else ''), '-o', filename + '.o.js'] + settings + extra_args, stdout=PIPE), None, 'Compiling') #print compiler_output # Detect compilation crashes and errors @@ -1161,25 +1131,26 @@ set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)''' % { 'winfix': '' if not WINDOWS e # Make sure the relooper exists. If it does not, check out the relooper code and bootstrap it @staticmethod - def ensure_relooper(): - if os.path.exists(RELOOPER): return + def ensure_relooper(relooper): + if os.path.exists(relooper): return + Cache.ensure() curr = os.getcwd() try: ok = False print >> sys.stderr, '=======================================' print >> sys.stderr, 'bootstrapping relooper...' - Cache.ensure() os.chdir(path_from_root('src')) def make(opt_level): - raw = RELOOPER + '.raw.js' + raw = relooper + '.raw.js' Building.emcc(os.path.join('relooper', 'Relooper.cpp'), ['-I' + os.path.join('relooper'), '--post-js', os.path.join('relooper', 'emscripten', 'glue.js'), '-s', 'TOTAL_MEMORY=52428800', '-s', 'EXPORTED_FUNCTIONS=["_rl_set_output_buffer","_rl_make_output_buffer","_rl_new_block","_rl_delete_block","_rl_block_add_branch_to","_rl_new_relooper","_rl_delete_relooper","_rl_relooper_add_block","_rl_relooper_calculate","_rl_relooper_render", "_rl_set_asm_js_mode"]', '-s', 'DEFAULT_LIBRARY_FUNCS_TO_INCLUDE=["memcpy", "memset", "malloc", "free", "puts"]', + '-s', 'RELOOPER="' + relooper + '"', '-O' + str(opt_level), '--closure', '0'], raw) - f = open(RELOOPER, 'w') + f = open(relooper, 'w') f.write("// Relooper, (C) 2012 Alon Zakai, MIT license, https://github.com/kripken/Relooper\n") f.write("var Relooper = (function() {\n"); f.write(open(raw).read()) @@ -1199,198 +1170,39 @@ set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)''' % { 'winfix': '' if not WINDOWS e finally: os.chdir(curr) if not ok: - print >> sys.stderr, 'bootstrapping relooper failed. You may need to manually create src/relooper.js by compiling it, see src/relooper/emscripten' + print >> sys.stderr, 'bootstrapping relooper failed. You may need to manually create relooper.js by compiling it, see src/relooper/emscripten' 1/0 -# Permanent cache for dlmalloc and stdlibc++ -class Cache: - dirname = os.environ.get('EM_CACHE') - if not dirname: - dirname = os.path.expanduser(os.path.join('~', '.emscripten_cache')) - - @staticmethod - def ensure(): - if not os.path.exists(Cache.dirname): - os.makedirs(Cache.dirname) - @staticmethod - def erase(): - try: - shutil.rmtree(Cache.dirname) - except: - pass - try_delete(RELOOPER) - try: - open(Cache.dirname + '__last_clear', 'w').write('last clear: ' + time.asctime() + '\n') - except: - print >> sys.stderr, 'failed to save last clear time' - - # Request a cached file. If it isn't in the cache, it will be created with - # the given creator function - @staticmethod - def get(shortname, creator): - if not shortname.endswith('.bc'): shortname += '.bc' - cachename = os.path.join(Cache.dirname, shortname) - if os.path.exists(cachename): - return cachename - Cache.ensure() - shutil.copyfile(creator(), cachename) - return cachename - -# JS-specific cache. We cache the results of compilation and optimization, -# so that in incremental builds we can just load from cache. -# We cache reasonably-large-sized chunks -class JCache: - dirname = os.path.join(Cache.dirname, 'jcache') - - @staticmethod - def ensure(): - Cache.ensure() - if not os.path.exists(JCache.dirname): - os.makedirs(JCache.dirname) - - @staticmethod - def get_shortkey(keys): - if type(keys) not in [list, tuple]: - keys = [keys] - ret = '' - for key in keys: - assert type(key) == str - ret += hashlib.md5(key).hexdigest() - return ret - - @staticmethod - def get_cachename(shortkey): - return os.path.join(JCache.dirname, shortkey) + def preprocess(infile, outfile): + ''' + Preprocess source C/C++ in some special ways that emscripten needs. Returns + a filename (potentially the same one if nothing was changed). - # Returns a cached value, if it exists. Make sure the full key matches - @staticmethod - def get(shortkey, keys): - if DEBUG_CACHE: print >> sys.stderr, 'jcache get?', shortkey - cachename = JCache.get_cachename(shortkey) - if not os.path.exists(cachename): - if DEBUG_CACHE: print >> sys.stderr, 'jcache none at all' - return - data = cPickle.Unpickler(open(cachename, 'rb')).load() - if len(data) != 2: - if DEBUG_CACHE: print >> sys.stderr, 'jcache error in get' - return - oldkeys = data[0] - if len(oldkeys) != len(keys): - if DEBUG_CACHE: print >> sys.stderr, 'jcache collision (a)' - return - for i in range(len(oldkeys)): - if oldkeys[i] != keys[i]: - if DEBUG_CACHE: print >> sys.stderr, 'jcache collision (b)' - return - if DEBUG_CACHE: print >> sys.stderr, 'jcache win' - return data[1] - - # Sets the cached value for a key (from get_key) - @staticmethod - def set(shortkey, keys, value): - if DEBUG_CACHE: print >> sys.stderr, 'save to cache', shortkey - cachename = JCache.get_cachename(shortkey) - cPickle.Pickler(open(cachename, 'wb')).dump([keys, value]) - #if DEBUG: - # for i in range(len(keys)): - # open(cachename + '.key' + str(i), 'w').write(keys[i]) - # open(cachename + '.value', 'w').write(value) - - # Given a set of functions of form (ident, text), and a preferred chunk size, - # generates a set of chunks for parallel processing and caching. - # It is very important to generate similar chunks in incremental builds, in - # order to maximize the chance of cache hits. To achieve that, we save the - # chunking used in the previous compilation of this phase, and we try to - # generate the same chunks, barring big differences in function sizes that - # violate our chunk size guideline. If caching is not used, chunking_file - # should be None - @staticmethod - def chunkify(funcs, chunk_size, chunking_file): - previous_mapping = None - if chunking_file: - chunking_file = JCache.get_cachename(chunking_file) - if os.path.exists(chunking_file): - try: - previous_mapping = cPickle.Unpickler(open(chunking_file, 'rb')).load() # maps a function identifier to the chunk number it will be in - if DEBUG: print >> sys.stderr, 'jscache previous mapping of size %d loaded from %s' % (len(previous_mapping), chunking_file) - except Exception, e: - print >> sys.stderr, 'Failed to load and unpickle previous chunking file at %s: ' % chunking_file, e - else: - print >> sys.stderr, 'Previous chunking file not found at %s' % chunking_file - chunks = [] - if previous_mapping: - # initialize with previous chunking - news = [] - for func in funcs: - ident, data = func - assert ident, 'need names for jcache chunking' - if not ident in previous_mapping: - news.append(func) - else: - n = previous_mapping[ident] - while n >= len(chunks): chunks.append([]) - chunks[n].append(func) - if DEBUG: print >> sys.stderr, 'jscache not in previous chunking', len(news) - # add news and adjust for new sizes - spilled = news - for i in range(len(chunks)): - chunk = chunks[i] - size = sum([len(func[1]) for func in chunk]) - #if DEBUG: print >> sys.stderr, 'need spilling?', i, size, len(chunk), 'vs', chunk_size, 1.5*chunk_size - while size > 1.5*chunk_size and len(chunk) > 1: - spill = chunk.pop() - spilled.append(spill) - size -= len(spill[1]) - #if DEBUG: print >> sys.stderr, 'jscache new + spilled', len(spilled) - for chunk in chunks: - size = sum([len(func[1]) for func in chunk]) - while size < 0.66*chunk_size and len(spilled) > 0: - spill = spilled.pop() - chunk.append(spill) - size += len(spill[1]) - chunks = filter(lambda chunk: len(chunk) > 0, chunks) # might have empty ones, eliminate them - funcs = spilled # we will allocate these into chunks as if they were normal inputs - #if DEBUG: print >> sys.stderr, 'leftover spills', len(spilled) - # initialize reasonably, the rest of the funcs we need to split out - curr = [] - total_size = 0 - for i in range(len(funcs)): - func = funcs[i] - curr_size = len(func[1]) - if total_size + curr_size < chunk_size: - curr.append(func) - total_size += curr_size - else: - chunks.append(curr) - curr = [func] - total_size = curr_size - if curr: - chunks.append(curr) - curr = None - if chunking_file: - # sort within each chunk, to keep the order identical - for chunk in chunks: - chunk.sort(key=lambda func: func[0]) - # save new mapping info - new_mapping = {} - for i in range(len(chunks)): - chunk = chunks[i] - for ident, data in chunk: - assert ident not in new_mapping, 'cannot have duplicate names in jcache chunking' - new_mapping[ident] = i - cPickle.Pickler(open(chunking_file, 'wb')).dump(new_mapping) - if DEBUG: print >> sys.stderr, 'jscache mapping of size %d saved to %s' % (len(new_mapping), chunking_file) - #if DEBUG: - # for i in range(len(chunks)): - # chunk = chunks[i] - # print >> sys.stderr, 'final chunk', i, len(chunk) - # print >> sys.stderr, 'new mapping:', new_mapping - # if previous_mapping: - # for ident in set(previous_mapping.keys() + new_mapping.keys()): - # if previous_mapping.get(ident) != new_mapping.get(ident): - # print >> sys.stderr, 'mapping inconsistency', ident, previous_mapping.get(ident), new_mapping.get(ident) - return [''.join([func[1] for func in chunk]) for chunk in chunks] # remove function names + Currently this only does emscripten_jcache_printf(..) rewriting. + ''' + src = open(infile).read() # stack warning on jcacheprintf! in docs # add jcache printf test separatrely, for content of printf + if 'emscripten_jcache_printf' not in src: return infile + def fix(m): + text = m.groups(0)[0] + assert text.count('(') == 1 and text.count(')') == 1, 'must have simple expressions in emscripten_jcache_printf calls, no parens' + assert text.count('"') == 2, 'must have simple expressions in emscripten_jcache_printf calls, no strings as varargs parameters' + start = text.index('(') + end = text.rindex(')') + args = text[start+1:end].split(',') + args = map(lambda x: x.strip(), args) + if args[0][0] == '"': + # flatten out + args = map(lambda x: str(ord(x)), args[0][1:len(args[0])-1]) + ['0'] + args[1:] + return 'emscripten_jcache_printf_(' + ','.join(args) + ')' + src = re.sub(r'(emscripten_jcache_printf\([^)]+\))', lambda m: fix(m), src) + open(outfile, 'w').write(src) + return outfile + +# compatibility with existing emcc, etc. scripts +Cache = cache.Cache(debug=DEBUG_CACHE) +JCache = cache.JCache(Cache) +chunkify = cache.chunkify class JS: @staticmethod |