1044 строки
45 KiB
Python
Executable File
1044 строки
45 KiB
Python
Executable File
#!/usr/bin/env python2
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'''
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You should normally never use this! Use emcc instead.
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This is a small wrapper script around the core JS compiler. This calls that
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compiler with the settings given to it. It can also read data from C/C++
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header files (so that the JS compiler can see the constants in those
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headers, for the libc implementation in JS).
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'''
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import os, sys, json, optparse, subprocess, re, time, string, logging
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from tools import shared
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from tools import jsrun, cache as cache_module, tempfiles
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from tools.response_file import read_response_file
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from tools.shared import WINDOWS
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__rootpath__ = os.path.abspath(os.path.dirname(__file__))
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def path_from_root(*pathelems):
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"""Returns the absolute path for which the given path elements are
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relative to the emscripten root.
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"""
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return os.path.join(__rootpath__, *pathelems)
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def get_configuration():
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if hasattr(get_configuration, 'configuration'):
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return get_configuration.configuration
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configuration = shared.Configuration(environ=os.environ)
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get_configuration.configuration = configuration
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return configuration
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STDERR_FILE = os.environ.get('EMCC_STDERR_FILE')
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if STDERR_FILE:
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STDERR_FILE = os.path.abspath(STDERR_FILE)
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logging.info('logging stderr in js compiler phase into %s' % STDERR_FILE)
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STDERR_FILE = open(STDERR_FILE, 'w')
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def emscript(infile, settings, outfile, libraries=[], compiler_engine=None,
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temp_files=None, DEBUG=None, DEBUG_CACHE=None):
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"""Runs the emscripten LLVM-to-JS compiler.
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Args:
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infile: The path to the input LLVM assembly file.
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settings: JSON-formatted settings that override the values
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defined in src/settings.js.
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outfile: The file where the output is written.
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"""
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assert settings['ASM_JS'], 'fastcomp is asm.js-only (mode 1 or 2)'
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success = False
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try:
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# Overview:
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# * Run LLVM backend to emit JS. JS includes function bodies, memory initializer,
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# and various metadata
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# * Run compiler.js on the metadata to emit the shell js code, pre/post-ambles,
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# JS library dependencies, etc.
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temp_js = temp_files.get('.4.js').name
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backend_compiler = os.path.join(shared.LLVM_ROOT, 'llc')
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backend_args = [backend_compiler, infile, '-march=js', '-filetype=asm', '-o', temp_js]
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if settings['PRECISE_F32']:
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backend_args += ['-emscripten-precise-f32']
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if settings['WARN_UNALIGNED']:
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backend_args += ['-emscripten-warn-unaligned']
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if settings['RESERVED_FUNCTION_POINTERS'] > 0:
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backend_args += ['-emscripten-reserved-function-pointers=%d' % settings['RESERVED_FUNCTION_POINTERS']]
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if settings['ASSERTIONS'] > 0:
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backend_args += ['-emscripten-assertions=%d' % settings['ASSERTIONS']]
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if settings['ALIASING_FUNCTION_POINTERS'] == 0:
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backend_args += ['-emscripten-no-aliasing-function-pointers']
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if settings['EMULATED_FUNCTION_POINTERS']:
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backend_args += ['-emscripten-emulated-function-pointers']
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if settings['RELOCATABLE']:
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backend_args += ['-emscripten-relocatable']
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backend_args += ['-emscripten-global-base=0']
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elif settings['GLOBAL_BASE'] >= 0:
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backend_args += ['-emscripten-global-base=%d' % settings['GLOBAL_BASE']]
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backend_args += ['-O' + str(settings['OPT_LEVEL'])]
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if DEBUG:
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logging.debug('emscript: llvm backend: ' + ' '.join(backend_args))
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t = time.time()
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shared.jsrun.timeout_run(subprocess.Popen(backend_args, stdout=subprocess.PIPE))
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if DEBUG:
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logging.debug(' emscript: llvm backend took %s seconds' % (time.time() - t))
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t = time.time()
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# Split up output
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backend_output = open(temp_js).read()
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#if DEBUG: print >> sys.stderr, backend_output
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start_funcs_marker = '// EMSCRIPTEN_START_FUNCTIONS'
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end_funcs_marker = '// EMSCRIPTEN_END_FUNCTIONS'
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metadata_split_marker = '// EMSCRIPTEN_METADATA'
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start_funcs = backend_output.index(start_funcs_marker)
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end_funcs = backend_output.rindex(end_funcs_marker)
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metadata_split = backend_output.rindex(metadata_split_marker)
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funcs = backend_output[start_funcs+len(start_funcs_marker):end_funcs]
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metadata_raw = backend_output[metadata_split+len(metadata_split_marker):]
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#if DEBUG: print >> sys.stderr, "METAraw", metadata_raw
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try:
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metadata = json.loads(metadata_raw)
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except Exception, e:
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logging.error('emscript: failure to parse metadata output from compiler backend. raw output is: \n' + metadata_raw)
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raise e
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mem_init = backend_output[end_funcs+len(end_funcs_marker):metadata_split]
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#if DEBUG: print >> sys.stderr, "FUNCS", funcs
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#if DEBUG: print >> sys.stderr, "META", metadata
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#if DEBUG: print >> sys.stderr, "meminit", mem_init
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# if emulating pointer casts, force all tables to the size of the largest
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if settings['EMULATE_FUNCTION_POINTER_CASTS']:
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max_size = 0
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for k, v in metadata['tables'].iteritems():
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max_size = max(max_size, v.count(',')+1)
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for k, v in metadata['tables'].iteritems():
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curr = v.count(',')+1
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if curr < max_size:
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metadata['tables'][k] = v.replace(']', (',0'*(max_size - curr)) + ']')
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if settings['SIDE_MODULE']:
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for k in metadata['tables'].keys():
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metadata['tables'][k] = metadata['tables'][k].replace('var FUNCTION_TABLE_', 'var SIDE_FUNCTION_TABLE_')
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# function table masks
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table_sizes = {}
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for k, v in metadata['tables'].iteritems():
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table_sizes[k] = str(v.count(',')) # undercounts by one, but that is what we want
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#if settings['ASSERTIONS'] >= 2 and table_sizes[k] == 0:
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# print >> sys.stderr, 'warning: no function pointers with signature ' + k + ', but there is a call, which will abort if it occurs (this can result from undefined behavior, check for compiler warnings on your source files and consider -Werror)'
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funcs = re.sub(r"#FM_(\w+)#", lambda m: table_sizes[m.groups(0)[0]], funcs)
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# fix +float into float.0, if not running js opts
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if not settings['RUNNING_JS_OPTS']:
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def fix_dot_zero(m):
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num = m.group(3)
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# TODO: handle 0x floats?
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if num.find('.') < 0:
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e = num.find('e');
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if e < 0:
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num += '.0'
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else:
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num = num[:e] + '.0' + num[e:]
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return m.group(1) + m.group(2) + num
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funcs = re.sub(r'([(=,+\-*/%<>:?] *)\+(-?)((0x)?[0-9a-f]*\.?[0-9]+([eE][-+]?[0-9]+)?)', lambda m: fix_dot_zero(m), funcs)
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# js compiler
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if DEBUG: logging.debug('emscript: js compiler glue')
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# Settings changes
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i64_funcs = ['i64Add', 'i64Subtract', '__muldi3', '__divdi3', '__udivdi3', '__remdi3', '__uremdi3']
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for i64_func in i64_funcs:
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if i64_func in metadata['declares']:
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settings['PRECISE_I64_MATH'] = 2
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break
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metadata['declares'] = filter(lambda i64_func: i64_func not in ['getHigh32', 'setHigh32', '__muldi3', '__divdi3', '__remdi3', '__udivdi3', '__uremdi3'], metadata['declares']) # FIXME: do these one by one as normal js lib funcs
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# Integrate info from backend
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if settings['SIDE_MODULE']:
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settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE'] = [] # we don't need any JS library contents in side modules
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settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE'] = list(
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set(settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE'] + map(shared.JS.to_nice_ident, metadata['declares'])).difference(
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map(lambda x: x[1:], metadata['implementedFunctions'])
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)
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) + map(lambda x: x[1:], metadata['externs'])
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if metadata['simd']:
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settings['SIMD'] = 1
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if metadata['cantValidate'] and settings['ASM_JS'] != 2:
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logging.warning('disabling asm.js validation due to use of non-supported features: ' + metadata['cantValidate'])
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settings['ASM_JS'] = 2
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# Save settings to a file to work around v8 issue 1579
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settings_file = temp_files.get('.txt').name
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def save_settings():
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global settings_text
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settings_text = json.dumps(settings, sort_keys=True)
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s = open(settings_file, 'w')
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s.write(settings_text)
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s.close()
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save_settings()
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# Call js compiler
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if DEBUG: t = time.time()
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out = jsrun.run_js(path_from_root('src', 'compiler.js'), compiler_engine,
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[settings_file] + libraries, stdout=subprocess.PIPE, stderr=STDERR_FILE,
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cwd=path_from_root('src'), error_limit=300)
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assert '//FORWARDED_DATA:' in out, 'Did not receive forwarded data in pre output - process failed?'
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glue, forwarded_data = out.split('//FORWARDED_DATA:')
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if DEBUG:
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logging.debug(' emscript: glue took %s seconds' % (time.time() - t))
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t = time.time()
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last_forwarded_json = forwarded_json = json.loads(forwarded_data)
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# merge in information from llvm backend
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last_forwarded_json['Functions']['tables'] = metadata['tables']
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pre, post = glue.split('// EMSCRIPTEN_END_FUNCS')
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#print >> sys.stderr, 'glue:', pre, '\n\n||||||||||||||||\n\n', post, '...............'
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# memory and global initializers
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global_initializers = str(', '.join(map(lambda i: '{ func: function() { %s() } }' % i, metadata['initializers'])))
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if settings['SIMD'] == 1:
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pre = open(path_from_root(os.path.join('src', 'ecmascript_simd.js'))).read() + '\n\n' + pre
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staticbump = mem_init.count(',')+1
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while staticbump % 16 != 0: staticbump += 1
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pre = pre.replace('STATICTOP = STATIC_BASE + 0;', '''STATICTOP = STATIC_BASE + %d;
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/* global initializers */ __ATINIT__.push(%s);
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%s''' % (staticbump, global_initializers, mem_init)) # XXX wrong size calculation!
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if settings['SIDE_MODULE']:
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pre = pre.replace('Runtime.GLOBAL_BASE', 'gb').replace('{{{ STATIC_BUMP }}}', str(staticbump))
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funcs_js = [funcs]
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parts = pre.split('// ASM_LIBRARY FUNCTIONS\n')
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if len(parts) > 1:
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pre = parts[0]
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funcs_js.append(parts[1])
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# merge forwarded data
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settings['EXPORTED_FUNCTIONS'] = forwarded_json['EXPORTED_FUNCTIONS']
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all_exported_functions = set(settings['EXPORTED_FUNCTIONS']) # both asm.js and otherwise
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for additional_export in settings['DEFAULT_LIBRARY_FUNCS_TO_INCLUDE']: # additional functions to export from asm, if they are implemented
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all_exported_functions.add('_' + additional_export)
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if settings['EXPORT_FUNCTION_TABLES']:
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for table in last_forwarded_json['Functions']['tables'].values():
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for func in table.split('[')[1].split(']')[0].split(','):
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if func[0] == '_':
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all_exported_functions.add(func)
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exported_implemented_functions = set(metadata['exports'])
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export_bindings = settings['EXPORT_BINDINGS']
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export_all = settings['EXPORT_ALL']
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all_implemented = metadata['implementedFunctions'] + forwarded_json['Functions']['implementedFunctions'].keys() # XXX perf?
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for key in all_implemented:
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if key in all_exported_functions or export_all or (export_bindings and key.startswith('_emscripten_bind')):
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exported_implemented_functions.add(key)
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implemented_functions = set(metadata['implementedFunctions'])
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if settings['ASSERTIONS'] and settings.get('ORIGINAL_EXPORTED_FUNCTIONS'):
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original_exports = settings['ORIGINAL_EXPORTED_FUNCTIONS']
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if original_exports[0] == '@': original_exports = json.loads(open(original_exports[1:]).read())
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for requested in original_exports:
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if requested not in all_implemented and \
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requested != '_malloc': # special-case malloc, EXPORTED by default for internal use, but we bake in a trivial allocator and warn at runtime if used in ASSERTIONS
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logging.warning('function requested to be exported, but not implemented: "%s"', requested)
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asm_consts = [0]*len(metadata['asmConsts'])
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for k, v in metadata['asmConsts'].iteritems():
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const = v.encode('utf-8')
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if const[0] == '"' and const[-1] == '"':
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const = const[1:-1]
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const = '{ ' + const + ' }'
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i = 0
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args = []
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while ('$' + str(i)) in const:
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args.append('$' + str(i))
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i += 1
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const = 'function(' + ', '.join(args ) + ') ' + const
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asm_consts[int(k)] = const
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asm_const_funcs = []
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for arity in metadata['asmConstArities']:
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forwarded_json['Functions']['libraryFunctions']['_emscripten_asm_const_%d' % arity] = 1
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args = ['a%d' % i for i in range(arity)]
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all_args = ['code'] + args
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asm_const_funcs.append(r'''
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function _emscripten_asm_const_%d(%s) {
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return ASM_CONSTS[code](%s) | 0;
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}''' % (arity, ', '.join(all_args), ', '.join(args)))
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pre = pre.replace('// === Body ===', '// === Body ===\n' + '\nvar ASM_CONSTS = [' + ', '.join(asm_consts) + '];\n' + '\n'.join(asm_const_funcs) + '\n')
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#if DEBUG: outfile.write('// pre\n')
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outfile.write(pre)
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pre = None
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#if DEBUG: outfile.write('// funcs\n')
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# when emulating function pointer casts, we need to know what is the target of each pointer
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if settings['EMULATE_FUNCTION_POINTER_CASTS']:
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function_pointer_targets = {}
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for sig, table in last_forwarded_json['Functions']['tables'].iteritems():
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start = table.index('[')
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end = table.rindex(']')
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body = table[start+1:end].split(',')
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parsed = map(lambda x: x.strip(), body)
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for i in range(len(parsed)):
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if parsed[i] != '0':
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assert i not in function_pointer_targets
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function_pointer_targets[i] = [sig, str(parsed[i])]
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# Move preAsms to their right place
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def move_preasm(m):
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contents = m.groups(0)[0]
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outfile.write(contents + '\n')
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return ''
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if not settings['BOOTSTRAPPING_STRUCT_INFO'] and len(funcs_js) > 1:
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funcs_js[1] = re.sub(r'/\* PRE_ASM \*/(.*)\n', lambda m: move_preasm(m), funcs_js[1])
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class Counter:
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i = 0
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j = 0
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if 'pre' in last_forwarded_json['Functions']['tables']:
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pre_tables = last_forwarded_json['Functions']['tables']['pre']
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del last_forwarded_json['Functions']['tables']['pre']
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else:
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pre_tables = ''
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def unfloat(s):
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return 'd' if s == 'f' else s # lower float to double for ffis
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if settings['ASSERTIONS'] >= 2:
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debug_tables = {}
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def make_params(sig): return ','.join(['p%d' % p for p in range(len(sig)-1)])
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def make_coerced_params(sig): return ','.join([shared.JS.make_coercion('p%d', unfloat(sig[p+1]), settings) % p for p in range(len(sig)-1)])
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def make_coercions(sig): return ';'.join(['p%d = %s' % (p, shared.JS.make_coercion('p%d' % p, sig[p+1], settings)) for p in range(len(sig)-1)]) + ';'
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def make_func(name, code, params, coercions): return 'function %s(%s) { %s %s }' % (name, params, coercions, code)
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in_table = set()
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def make_table(sig, raw):
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params = make_params(sig)
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coerced_params = make_coerced_params(sig)
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coercions = make_coercions(sig)
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def make_bad(target=None):
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i = Counter.i
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Counter.i += 1
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if target is None: target = i
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name = 'b' + str(i)
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if not settings['ASSERTIONS']:
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code = 'abort(%s);' % target
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else:
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code = 'nullFunc_' + sig + '(%d);' % target
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if sig[0] != 'v':
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code += 'return %s' % shared.JS.make_initializer(sig[0], settings) + ';'
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return name, make_func(name, code, params, coercions)
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bad, bad_func = make_bad() # the default bad func
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if settings['ASSERTIONS'] <= 1:
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Counter.pre = [bad_func]
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else:
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Counter.pre = []
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start = raw.index('[')
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end = raw.rindex(']')
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body = raw[start+1:end].split(',')
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if settings['EMULATED_FUNCTION_POINTERS']:
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def receive(item):
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if item == '0':
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return item
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else:
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if item in all_implemented:
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in_table.add(item)
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return "asm['" + item + "']"
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else:
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return item # this is not implemented; it would normally be wrapped, but with emulation, we just use it directly outside
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body = map(receive, body)
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for j in range(settings['RESERVED_FUNCTION_POINTERS']):
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curr = 'jsCall_%s_%s' % (sig, j)
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body[settings['FUNCTION_POINTER_ALIGNMENT'] * (1 + j)] = curr
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implemented_functions.add(curr)
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Counter.j = 0
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def fix_item(item):
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j = Counter.j
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Counter.j += 1
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newline = Counter.j % 30 == 29
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if item == '0':
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if j > 0 and settings['EMULATE_FUNCTION_POINTER_CASTS'] and j in function_pointer_targets: # emulate all non-null pointer calls, if asked to
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proper_sig, proper_target = function_pointer_targets[j]
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if settings['EMULATED_FUNCTION_POINTERS']:
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if proper_target in all_implemented:
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proper_target = "asm['" + proper_target + "']"
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def make_emulated_param(i):
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if i >= len(sig): return shared.JS.make_initializer(proper_sig[i], settings) # extra param, just send a zero
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return shared.JS.make_coercion('p%d' % (i-1), proper_sig[i], settings, convert_from=sig[i])
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proper_code = proper_target + '(' + ','.join(map(lambda i: make_emulated_param(i+1), range(len(proper_sig)-1))) + ')'
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if proper_sig[0] != 'v':
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# proper sig has a return, which the wrapper may or may not use
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proper_code = shared.JS.make_coercion(proper_code, proper_sig[0], settings)
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if proper_sig[0] != sig[0]:
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# first coercion ensured we call the target ok; this one ensures we return the right type in the wrapper
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proper_code = shared.JS.make_coercion(proper_code, sig[0], settings, convert_from=proper_sig[0])
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if sig[0] != 'v':
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proper_code = 'return ' + proper_code
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else:
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# proper sig has no return, we may need a fake return
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if sig[0] != 'v':
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proper_code = 'return ' + shared.JS.make_initializer(sig[0], settings)
|
|
name = 'fpemu_%s_%d' % (sig, j)
|
|
wrapper = make_func(name, proper_code, params, coercions)
|
|
Counter.pre.append(wrapper)
|
|
return name if not newline else (name + '\n')
|
|
if settings['ASSERTIONS'] <= 1:
|
|
return bad if not newline else (bad + '\n')
|
|
else:
|
|
specific_bad, specific_bad_func = make_bad(j)
|
|
Counter.pre.append(specific_bad_func)
|
|
return specific_bad if not newline else (specific_bad + '\n')
|
|
if item not in implemented_functions and not settings['EMULATED_FUNCTION_POINTERS']: # when emulating function pointers, we don't need wrappers
|
|
# this is imported into asm, we must wrap it
|
|
call_ident = item
|
|
if call_ident in metadata['redirects']: call_ident = metadata['redirects'][call_ident]
|
|
if not call_ident.startswith('_') and not call_ident.startswith('Math_'): call_ident = '_' + call_ident
|
|
code = call_ident + '(' + coerced_params + ')'
|
|
if sig[0] != 'v':
|
|
# ffis cannot return float
|
|
if sig[0] == 'f': code = '+' + code
|
|
code = 'return ' + shared.JS.make_coercion(code, sig[0], settings)
|
|
code += ';'
|
|
Counter.pre.append(make_func(item + '__wrapper', code, params, coercions))
|
|
return item + '__wrapper'
|
|
return item if not newline else (item + '\n')
|
|
if settings['ASSERTIONS'] >= 2:
|
|
debug_tables[sig] = body
|
|
body = ','.join(map(fix_item, body))
|
|
return ('\n'.join(Counter.pre), ''.join([raw[:start+1], body, raw[end:]]))
|
|
|
|
infos = [make_table(sig, raw) for sig, raw in last_forwarded_json['Functions']['tables'].iteritems()]
|
|
Counter.pre = []
|
|
|
|
function_tables_defs = '\n'.join([info[0] for info in infos]) + '\n'
|
|
if not settings['EMULATED_FUNCTION_POINTERS']:
|
|
function_tables_defs += '\n// EMSCRIPTEN_END_FUNCS\n'
|
|
function_tables_defs += '\n'.join([info[1] for info in infos])
|
|
|
|
asm_setup = ''
|
|
|
|
if settings['ASSERTIONS'] >= 2:
|
|
for sig in last_forwarded_json['Functions']['tables']:
|
|
asm_setup += '\nvar debug_table_' + sig + ' = ' + json.dumps(debug_tables[sig]) + ';'
|
|
|
|
maths = ['Math.' + func for func in ['floor', 'abs', 'sqrt', 'pow', 'cos', 'sin', 'tan', 'acos', 'asin', 'atan', 'atan2', 'exp', 'log', 'ceil', 'imul', 'min', 'clz32']]
|
|
simdfloattypes = ['float32x4']
|
|
simdinttypes = ['int32x4']
|
|
simdtypes = simdfloattypes + simdinttypes
|
|
simdfuncs = ['check', 'add', 'sub', 'neg', 'mul',
|
|
'equal', 'lessThan', 'greaterThan',
|
|
'notEqual', 'lessThanOrEqual', 'greaterThanOrEqual',
|
|
'select', 'and', 'or', 'xor', 'not',
|
|
'splat', 'swizzle', 'shuffle',
|
|
'withX', 'withY', 'withZ', 'withW',
|
|
'load', 'store', 'loadX', 'storeX', 'loadXY', 'storeXY', 'loadXYZ', 'storeXYZ']
|
|
simdfloatfuncs = simdfuncs + ['div', 'min', 'max', 'minNum', 'maxNum', 'sqrt',
|
|
'abs', 'fromInt32x4', 'fromInt32x4Bits',
|
|
'reciprocalApproximation', 'reciprocalSqrtApproximation'];
|
|
simdintfuncs = simdfuncs + ['fromFloat32x4', 'fromFloat32x4Bits',
|
|
'shiftRightArithmeticByScalar',
|
|
'shiftRightLogicalByScalar',
|
|
'shiftLeftByScalar'];
|
|
fundamentals = ['Math', 'Int8Array', 'Int16Array', 'Int32Array', 'Uint8Array', 'Uint16Array', 'Uint32Array', 'Float32Array', 'Float64Array', 'NaN', 'Infinity']
|
|
if metadata['simd']:
|
|
fundamentals += ['SIMD']
|
|
if settings['ALLOW_MEMORY_GROWTH']: fundamentals.append('byteLength')
|
|
math_envs = []
|
|
|
|
provide_fround = settings['PRECISE_F32'] or settings['SIMD']
|
|
|
|
if provide_fround: maths += ['Math.fround']
|
|
|
|
def get_function_pointer_error(sig):
|
|
if settings['ASSERTIONS'] <= 1:
|
|
extra = ' Module["printErr"]("Build with ASSERTIONS=2 for more info.");'
|
|
pointer = ' '
|
|
else:
|
|
pointer = ' \'" + x + "\' '
|
|
extra = ' Module["printErr"]("This pointer might make sense in another type signature: '
|
|
# sort signatures, attempting to show most likely related ones first
|
|
sigs = last_forwarded_json['Functions']['tables'].keys()
|
|
def keyfunc(other):
|
|
ret = 0
|
|
minlen = min(len(other), len(sig))
|
|
maxlen = min(len(other), len(sig))
|
|
if other.startswith(sig) or sig.startswith(other): ret -= 1000 # prioritize prefixes, could be dropped params
|
|
ret -= 133*difflib.SequenceMatcher(a=other, b=sig).ratio() # prioritize on diff similarity
|
|
ret += 15*abs(len(other) - len(sig))/float(maxlen) # deprioritize the bigger the length difference is
|
|
for i in range(minlen):
|
|
if other[i] == sig[i]: ret -= 5/float(maxlen) # prioritize on identically-placed params
|
|
ret += 20*len(other) # deprioritize on length
|
|
return ret
|
|
sigs.sort(key=keyfunc)
|
|
for other in sigs:
|
|
if other != sig:
|
|
extra += other + ': " + debug_table_' + other + '[x] + " '
|
|
extra += '"); '
|
|
return 'Module["printErr"]("Invalid function pointer' + pointer + 'called with signature \'' + sig + '\'. ' + \
|
|
'Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? ' + \
|
|
'Or calling a function with an incorrect type, which will fail? ' + \
|
|
'(it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this)' + \
|
|
'"); ' + extra
|
|
|
|
basic_funcs = ['abort', 'assert'] + [m.replace('.', '_') for m in math_envs]
|
|
if settings['SAFE_HEAP']: basic_funcs += ['SAFE_HEAP_LOAD', 'SAFE_HEAP_STORE', 'SAFE_FT_MASK']
|
|
if settings['ASSERTIONS']:
|
|
if settings['ASSERTIONS'] >= 2: import difflib
|
|
for sig in last_forwarded_json['Functions']['tables'].iterkeys():
|
|
basic_funcs += ['nullFunc_' + sig]
|
|
asm_setup += '\nfunction nullFunc_' + sig + '(x) { ' + get_function_pointer_error(sig) + 'abort(x) }\n'
|
|
|
|
basic_vars = ['STACKTOP', 'STACK_MAX', 'tempDoublePtr', 'ABORT']
|
|
basic_float_vars = []
|
|
|
|
if metadata.get('preciseI64MathUsed'):
|
|
basic_vars += ['cttz_i8']
|
|
else:
|
|
if forwarded_json['Functions']['libraryFunctions'].get('_llvm_cttz_i32'):
|
|
basic_vars += ['cttz_i8']
|
|
|
|
if settings['RELOCATABLE']:
|
|
basic_vars += ['gb', 'fb']
|
|
if not settings['SIDE_MODULE']:
|
|
asm_setup += 'var gb = Runtime.GLOBAL_BASE, fb = 0;\n'
|
|
|
|
asm_runtime_funcs = ['stackAlloc', 'stackSave', 'stackRestore', 'setThrew']
|
|
if not settings['RELOCATABLE']:
|
|
asm_runtime_funcs += ['setTempRet0', 'getTempRet0']
|
|
else:
|
|
basic_funcs += ['setTempRet0', 'getTempRet0']
|
|
asm_setup += 'var setTempRet0 = Runtime.setTempRet0, getTempRet0 = Runtime.getTempRet0;\n'
|
|
|
|
# See if we need ASYNCIFY functions
|
|
# We might not need them even if ASYNCIFY is enabled
|
|
need_asyncify = '_emscripten_alloc_async_context' in exported_implemented_functions
|
|
if need_asyncify:
|
|
basic_vars += ['___async', '___async_unwind', '___async_retval', '___async_cur_frame']
|
|
asm_runtime_funcs += ['setAsync']
|
|
|
|
if settings.get('EMTERPRETIFY'):
|
|
asm_runtime_funcs += ['emterpret']
|
|
if settings.get('EMTERPRETIFY_ASYNC'):
|
|
asm_runtime_funcs += ['setAsyncState', 'emtStackSave']
|
|
|
|
# function tables
|
|
if not settings['EMULATED_FUNCTION_POINTERS']:
|
|
function_tables = ['dynCall_' + table for table in last_forwarded_json['Functions']['tables']]
|
|
else:
|
|
function_tables = []
|
|
function_tables_impls = []
|
|
|
|
for sig in last_forwarded_json['Functions']['tables'].iterkeys():
|
|
args = ','.join(['a' + str(i) for i in range(1, len(sig))])
|
|
arg_coercions = ' '.join(['a' + str(i) + '=' + shared.JS.make_coercion('a' + str(i), sig[i], settings) + ';' for i in range(1, len(sig))])
|
|
coerced_args = ','.join([shared.JS.make_coercion('a' + str(i), sig[i], settings) for i in range(1, len(sig))])
|
|
ret = ('return ' if sig[0] != 'v' else '') + shared.JS.make_coercion('FUNCTION_TABLE_%s[index&{{{ FTM_%s }}}](%s)' % (sig, sig, coerced_args), sig[0], settings)
|
|
if not settings['EMULATED_FUNCTION_POINTERS']:
|
|
function_tables_impls.append('''
|
|
function dynCall_%s(index%s%s) {
|
|
index = index|0;
|
|
%s
|
|
%s;
|
|
}
|
|
''' % (sig, ',' if len(sig) > 1 else '', args, arg_coercions, ret))
|
|
else:
|
|
function_tables_impls.append('''
|
|
var dynCall_%s = ftCall_%s;
|
|
''' % (sig, sig))
|
|
|
|
ffi_args = ','.join([shared.JS.make_coercion('a' + str(i), sig[i], settings, ffi_arg=True) for i in range(1, len(sig))])
|
|
for i in range(settings['RESERVED_FUNCTION_POINTERS']):
|
|
jsret = ('return ' if sig[0] != 'v' else '') + shared.JS.make_coercion('jsCall_%s(%d%s%s)' % (sig, i, ',' if ffi_args else '', ffi_args), sig[0], settings, ffi_result=True)
|
|
function_tables_impls.append('''
|
|
function jsCall_%s_%s(%s) {
|
|
%s
|
|
%s;
|
|
}
|
|
|
|
''' % (sig, i, args, arg_coercions, jsret))
|
|
shared.Settings.copy(settings)
|
|
asm_setup += '\n' + shared.JS.make_invoke(sig) + '\n'
|
|
basic_funcs.append('invoke_%s' % sig)
|
|
if settings.get('RESERVED_FUNCTION_POINTERS'):
|
|
asm_setup += '\n' + shared.JS.make_jscall(sig) + '\n'
|
|
basic_funcs.append('jsCall_%s' % sig)
|
|
if settings.get('EMULATED_FUNCTION_POINTERS'):
|
|
args = ['a%d' % i for i in range(len(sig)-1)]
|
|
full_args = ['x'] + args
|
|
table_access = 'FUNCTION_TABLE_' + sig
|
|
if settings['SIDE_MODULE']:
|
|
table_access = 'parentModule["' + table_access + '"]' # side module tables were merged into the parent, we need to access the global one
|
|
prelude = '''
|
|
if (x < 0 || x >= %s.length) { Module.printErr("Function table mask error (out of range)"); %s ; abort(x) }''' % (table_access, get_function_pointer_error(sig))
|
|
asm_setup += '''
|
|
function ftCall_%s(%s) {%s
|
|
return %s[x](%s);
|
|
}
|
|
''' % (sig, ', '.join(full_args), prelude, table_access, ', '.join(args))
|
|
basic_funcs.append('ftCall_%s' % sig)
|
|
|
|
def quote(prop):
|
|
if settings['CLOSURE_COMPILER'] == 2:
|
|
return "'" + prop + "'"
|
|
else:
|
|
return prop
|
|
|
|
def access_quote(prop):
|
|
if settings['CLOSURE_COMPILER'] == 2:
|
|
return "['" + prop + "']"
|
|
else:
|
|
return '.' + prop
|
|
|
|
# calculate exports
|
|
exported_implemented_functions = list(exported_implemented_functions) + metadata['initializers']
|
|
exported_implemented_functions.append('runPostSets')
|
|
if settings['ALLOW_MEMORY_GROWTH']:
|
|
exported_implemented_functions.append('_emscripten_replace_memory')
|
|
all_exported = exported_implemented_functions + asm_runtime_funcs + function_tables
|
|
exported_implemented_functions = list(set(exported_implemented_functions))
|
|
if settings['EMULATED_FUNCTION_POINTERS']:
|
|
all_exported = list(set(all_exported).union(in_table))
|
|
exports = []
|
|
for export in all_exported:
|
|
exports.append(quote(export) + ": " + export)
|
|
exports = '{ ' + ', '.join(exports) + ' }'
|
|
# calculate globals
|
|
try:
|
|
del forwarded_json['Variables']['globals']['_llvm_global_ctors'] # not a true variable
|
|
except:
|
|
pass
|
|
if not settings['RELOCATABLE']:
|
|
global_vars = metadata['externs']
|
|
else:
|
|
global_vars = [] # linkable code accesses globals through function calls
|
|
global_funcs = list(set([key for key, value in forwarded_json['Functions']['libraryFunctions'].iteritems() if value != 2]).difference(set(global_vars)).difference(implemented_functions))
|
|
if settings['RELOCATABLE']:
|
|
global_funcs += ['g$' + extern for extern in metadata['externs']]
|
|
side = 'parent' if settings['SIDE_MODULE'] else ''
|
|
def check(extern):
|
|
if settings['ASSERTIONS']: return 'assert(' + side + 'Module["' + extern + '"]);'
|
|
return ''
|
|
for extern in metadata['externs']:
|
|
asm_setup += 'var g$' + extern + ' = function() { ' + check(extern) + ' return ' + side + 'Module["' + extern + '"] };\n'
|
|
def math_fix(g):
|
|
return g if not g.startswith('Math_') else g.split('_')[1]
|
|
asm_global_funcs = ''.join([' var ' + g.replace('.', '_') + '=global' + access_quote(g) + ';\n' for g in maths]);
|
|
asm_global_funcs += ''.join([' var ' + g + '=env' + access_quote(math_fix(g)) + ';\n' for g in basic_funcs + global_funcs])
|
|
if metadata['simd']:
|
|
asm_global_funcs += ''.join([' var SIMD_' + ty + '=global' + access_quote('SIMD') + access_quote(ty) + ';\n' for ty in simdtypes])
|
|
asm_global_funcs += ''.join([' var SIMD_' + ty + '_' + g + '=SIMD_' + ty + access_quote(g) + ';\n' for ty in simdinttypes for g in simdintfuncs])
|
|
asm_global_funcs += ''.join([' var SIMD_' + ty + '_' + g + '=SIMD_' + ty + access_quote(g) + ';\n' for ty in simdfloattypes for g in simdfloatfuncs])
|
|
asm_global_vars = ''.join([' var ' + g + '=env' + access_quote(g) + '|0;\n' for g in basic_vars + global_vars])
|
|
|
|
# sent data
|
|
the_global = '{ ' + ', '.join(['"' + math_fix(s) + '": ' + s for s in fundamentals]) + ' }'
|
|
sending = '{ ' + ', '.join(['"' + math_fix(s) + '": ' + s for s in basic_funcs + global_funcs + basic_vars + basic_float_vars + global_vars]) + ' }'
|
|
# received
|
|
receiving = ''
|
|
if settings['ASSERTIONS']:
|
|
# assert on the runtime being in a valid state when calling into compiled code. The only exceptions are
|
|
# some support code like malloc TODO: verify that malloc is actually safe to use that way
|
|
receiving = '\n'.join(['var real_' + s + ' = asm["' + s + '"]; asm["' + s + '''"] = function() {
|
|
assert(runtimeInitialized, 'you need to wait for the runtime to be ready (e.g. wait for main() to be called)');
|
|
assert(!runtimeExited, 'the runtime was exited (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
|
|
return real_''' + s + '''.apply(null, arguments);
|
|
};
|
|
''' for s in exported_implemented_functions if s not in ['_malloc', '_free', '_memcpy', '_memset', 'runPostSets']])
|
|
|
|
if not settings['SWAPPABLE_ASM_MODULE']:
|
|
receiving += ';\n'.join(['var ' + s + ' = Module["' + s + '"] = asm["' + s + '"]' for s in exported_implemented_functions + function_tables])
|
|
else:
|
|
receiving += 'Module["asm"] = asm;\n' + ';\n'.join(['var ' + s + ' = Module["' + s + '"] = function() { return Module["asm"]["' + s + '"].apply(null, arguments) }' for s in exported_implemented_functions + function_tables])
|
|
receiving += ';\n'
|
|
|
|
if settings['EXPORT_FUNCTION_TABLES']:
|
|
for table in last_forwarded_json['Functions']['tables'].values():
|
|
tableName = table.split()[1]
|
|
table = table.replace('var ' + tableName, 'var ' + tableName + ' = Module["' + tableName + '"]')
|
|
receiving += table + '\n'
|
|
|
|
# finalize
|
|
|
|
if DEBUG: logging.debug('asm text sizes' + str([map(len, funcs_js), len(asm_setup), len(asm_global_vars), len(asm_global_funcs), len(pre_tables), len('\n'.join(function_tables_impls)), len(function_tables_defs.replace('\n', '\n ')), len(exports), len(the_global), len(sending), len(receiving)]))
|
|
|
|
if not settings.get('EMULATED_FUNCTION_POINTERS'):
|
|
final_function_tables = '\n'.join(function_tables_impls) + '\n' + function_tables_defs
|
|
else:
|
|
asm_setup += '\n' + '\n'.join(function_tables_impls) + '\n'
|
|
receiving += '\n' + function_tables_defs + '\n' + ''.join(['Module["dynCall_%s"] = dynCall_%s\n' % (sig, sig) for sig in last_forwarded_json['Functions']['tables']])
|
|
for sig in last_forwarded_json['Functions']['tables'].keys():
|
|
name = 'FUNCTION_TABLE_' + sig
|
|
fullname = name if not settings['SIDE_MODULE'] else ('SIDE_' + name)
|
|
receiving += 'Module["' + name + '"] = ' + fullname + ';\n'
|
|
final_function_tables = '\n// EMSCRIPTEN_END_FUNCS\n'
|
|
|
|
if settings['RELOCATABLE']:
|
|
receiving += '''
|
|
var NAMED_GLOBALS = { %s };
|
|
for (var named in NAMED_GLOBALS) {
|
|
Module['_' + named] = gb + NAMED_GLOBALS[named];
|
|
}
|
|
Module['NAMED_GLOBALS'] = NAMED_GLOBALS;
|
|
''' % ', '.join('"' + k + '": ' + str(v) for k, v in metadata['namedGlobals'].iteritems())
|
|
|
|
receiving += ''.join(["Module['%s'] = Module['%s']\n" % (k, v) for k, v in metadata['aliases'].iteritems()])
|
|
|
|
funcs_js = ['''
|
|
%s
|
|
Module%s = %s;
|
|
Module%s = %s;
|
|
// EMSCRIPTEN_START_ASM
|
|
var asm = (function(global, env, buffer) {
|
|
%s
|
|
%s
|
|
''' % (asm_setup,
|
|
access_quote('asmGlobalArg'), the_global,
|
|
access_quote('asmLibraryArg'), sending,
|
|
"'use asm';" if not metadata.get('hasInlineJS') and settings['ASM_JS'] == 1 else "'almost asm';", '''
|
|
var HEAP8 = new global%s(buffer);
|
|
var HEAP16 = new global%s(buffer);
|
|
var HEAP32 = new global%s(buffer);
|
|
var HEAPU8 = new global%s(buffer);
|
|
var HEAPU16 = new global%s(buffer);
|
|
var HEAPU32 = new global%s(buffer);
|
|
var HEAPF32 = new global%s(buffer);
|
|
var HEAPF64 = new global%s(buffer);
|
|
''' % (access_quote('Int8Array'),
|
|
access_quote('Int16Array'),
|
|
access_quote('Int32Array'),
|
|
access_quote('Uint8Array'),
|
|
access_quote('Uint16Array'),
|
|
access_quote('Uint32Array'),
|
|
access_quote('Float32Array'),
|
|
access_quote('Float64Array')) if not settings['ALLOW_MEMORY_GROWTH'] else '''
|
|
var Int8View = global%s;
|
|
var Int16View = global%s;
|
|
var Int32View = global%s;
|
|
var Uint8View = global%s;
|
|
var Uint16View = global%s;
|
|
var Uint32View = global%s;
|
|
var Float32View = global%s;
|
|
var Float64View = global%s;
|
|
var HEAP8 = new Int8View(buffer);
|
|
var HEAP16 = new Int16View(buffer);
|
|
var HEAP32 = new Int32View(buffer);
|
|
var HEAPU8 = new Uint8View(buffer);
|
|
var HEAPU16 = new Uint16View(buffer);
|
|
var HEAPU32 = new Uint32View(buffer);
|
|
var HEAPF32 = new Float32View(buffer);
|
|
var HEAPF64 = new Float64View(buffer);
|
|
var byteLength = global.byteLength;
|
|
''' % (access_quote('Int8Array'),
|
|
access_quote('Int16Array'),
|
|
access_quote('Int32Array'),
|
|
access_quote('Uint8Array'),
|
|
access_quote('Uint16Array'),
|
|
access_quote('Uint32Array'),
|
|
access_quote('Float32Array'),
|
|
access_quote('Float64Array'))) + '\n' + asm_global_vars + ('''
|
|
var __THREW__ = 0;
|
|
var threwValue = 0;
|
|
var setjmpId = 0;
|
|
var undef = 0;
|
|
var nan = global%s, inf = global%s;
|
|
var tempInt = 0, tempBigInt = 0, tempBigIntP = 0, tempBigIntS = 0, tempBigIntR = 0.0, tempBigIntI = 0, tempBigIntD = 0, tempValue = 0, tempDouble = 0.0;
|
|
''' % (access_quote('NaN'), access_quote('Infinity'))) + ''.join(['''
|
|
var tempRet%d = 0;''' % i for i in range(10)]) + '\n' + asm_global_funcs] + \
|
|
[' var tempFloat = %s;\n' % ('Math_fround(0)' if provide_fround else '0.0')] + \
|
|
[' var asyncState = 0;\n' if settings.get('EMTERPRETIFY_ASYNC') else ''] + \
|
|
([' const f0 = Math_fround(0);\n'] if provide_fround else []) + \
|
|
['' if not settings['ALLOW_MEMORY_GROWTH'] else '''
|
|
function _emscripten_replace_memory(newBuffer) {
|
|
if ((byteLength(newBuffer) & 0xffffff || byteLength(newBuffer) <= 0xffffff) || byteLength(newBuffer) > 0x80000000) return false;
|
|
HEAP8 = new Int8View(newBuffer);
|
|
HEAP16 = new Int16View(newBuffer);
|
|
HEAP32 = new Int32View(newBuffer);
|
|
HEAPU8 = new Uint8View(newBuffer);
|
|
HEAPU16 = new Uint16View(newBuffer);
|
|
HEAPU32 = new Uint32View(newBuffer);
|
|
HEAPF32 = new Float32View(newBuffer);
|
|
HEAPF64 = new Float64View(newBuffer);
|
|
buffer = newBuffer;
|
|
return true;
|
|
}
|
|
'''] + ['''
|
|
// EMSCRIPTEN_START_FUNCS
|
|
function stackAlloc(size) {
|
|
size = size|0;
|
|
var ret = 0;
|
|
ret = STACKTOP;
|
|
STACKTOP = (STACKTOP + size)|0;
|
|
STACKTOP = (STACKTOP + 15)&-16;
|
|
''' + ('if ((STACKTOP|0) >= (STACK_MAX|0)) abort();\n' if settings['ASSERTIONS'] else '') + '''
|
|
return ret|0;
|
|
}
|
|
function stackSave() {
|
|
return STACKTOP|0;
|
|
}
|
|
function stackRestore(top) {
|
|
top = top|0;
|
|
STACKTOP = top;
|
|
}
|
|
''' + ('''
|
|
function setAsync() {
|
|
___async = 1;
|
|
}''' if need_asyncify else '') + ('''
|
|
function emterpret(pc) { // this will be replaced when the emterpreter code is generated; adding it here allows validation until then
|
|
pc = pc | 0;
|
|
assert(0);
|
|
}
|
|
''' if settings['EMTERPRETIFY'] else '') + ('''
|
|
function setAsyncState(x) {
|
|
x = x | 0;
|
|
asyncState = x;
|
|
}
|
|
function emtStackSave() {
|
|
return EMTSTACKTOP|0;
|
|
}
|
|
''' if settings['EMTERPRETIFY_ASYNC'] else '') + '''
|
|
function setThrew(threw, value) {
|
|
threw = threw|0;
|
|
value = value|0;
|
|
if ((__THREW__|0) == 0) {
|
|
__THREW__ = threw;
|
|
threwValue = value;
|
|
}
|
|
}
|
|
function copyTempFloat(ptr) {
|
|
ptr = ptr|0;
|
|
HEAP8[tempDoublePtr>>0] = HEAP8[ptr>>0];
|
|
HEAP8[tempDoublePtr+1>>0] = HEAP8[ptr+1>>0];
|
|
HEAP8[tempDoublePtr+2>>0] = HEAP8[ptr+2>>0];
|
|
HEAP8[tempDoublePtr+3>>0] = HEAP8[ptr+3>>0];
|
|
}
|
|
function copyTempDouble(ptr) {
|
|
ptr = ptr|0;
|
|
HEAP8[tempDoublePtr>>0] = HEAP8[ptr>>0];
|
|
HEAP8[tempDoublePtr+1>>0] = HEAP8[ptr+1>>0];
|
|
HEAP8[tempDoublePtr+2>>0] = HEAP8[ptr+2>>0];
|
|
HEAP8[tempDoublePtr+3>>0] = HEAP8[ptr+3>>0];
|
|
HEAP8[tempDoublePtr+4>>0] = HEAP8[ptr+4>>0];
|
|
HEAP8[tempDoublePtr+5>>0] = HEAP8[ptr+5>>0];
|
|
HEAP8[tempDoublePtr+6>>0] = HEAP8[ptr+6>>0];
|
|
HEAP8[tempDoublePtr+7>>0] = HEAP8[ptr+7>>0];
|
|
}
|
|
'''] + ['''
|
|
function setTempRet0(value) {
|
|
value = value|0;
|
|
tempRet0 = value;
|
|
}
|
|
function getTempRet0() {
|
|
return tempRet0|0;
|
|
}
|
|
''' if not settings['RELOCATABLE'] else ''] + funcs_js + ['''
|
|
%s
|
|
|
|
return %s;
|
|
})
|
|
// EMSCRIPTEN_END_ASM
|
|
(%s, %s, buffer);
|
|
%s;
|
|
''' % (pre_tables + final_function_tables, exports,
|
|
'Module' + access_quote('asmGlobalArg'),
|
|
'Module' + access_quote('asmLibraryArg'),
|
|
receiving)]
|
|
|
|
if not settings.get('SIDE_MODULE'):
|
|
funcs_js.append('''
|
|
Runtime.stackAlloc = asm['stackAlloc'];
|
|
Runtime.stackSave = asm['stackSave'];
|
|
Runtime.stackRestore = asm['stackRestore'];
|
|
''')
|
|
if not settings['RELOCATABLE']:
|
|
funcs_js.append('''
|
|
Runtime.setTempRet0 = asm['setTempRet0'];
|
|
Runtime.getTempRet0 = asm['getTempRet0'];
|
|
''')
|
|
|
|
# Set function table masks
|
|
masks = {}
|
|
max_mask = 0
|
|
for sig, table in last_forwarded_json['Functions']['tables'].iteritems():
|
|
mask = table.count(',')
|
|
masks[sig] = str(mask)
|
|
max_mask = max(mask, max_mask)
|
|
def function_table_maskize(js, masks):
|
|
def fix(m):
|
|
sig = m.groups(0)[0]
|
|
return masks[sig]
|
|
return re.sub(r'{{{ FTM_([\w\d_$]+) }}}', lambda m: fix(m), js) # masks[m.groups(0)[0]]
|
|
funcs_js = map(lambda js: function_table_maskize(js, masks), funcs_js)
|
|
|
|
if settings['SIDE_MODULE']:
|
|
funcs_js.append('''
|
|
Runtime.registerFunctions(%(sigs)s, Module);
|
|
''' % { 'sigs': str(map(str, last_forwarded_json['Functions']['tables'].keys())) })
|
|
|
|
for i in range(len(funcs_js)): # do this loop carefully to save memory
|
|
if WINDOWS: funcs_js[i] = funcs_js[i].replace('\r\n', '\n') # Normalize to UNIX line endings, otherwise writing to text file will duplicate \r\n to \r\r\n!
|
|
outfile.write(funcs_js[i])
|
|
funcs_js = None
|
|
|
|
if WINDOWS: post = post.replace('\r\n', '\n') # Normalize to UNIX line endings, otherwise writing to text file will duplicate \r\n to \r\r\n!
|
|
outfile.write(post)
|
|
|
|
outfile.close()
|
|
|
|
if DEBUG: logging.debug(' emscript: final python processing took %s seconds' % (time.time() - t))
|
|
|
|
success = True
|
|
|
|
finally:
|
|
if not success:
|
|
outfile.close()
|
|
shared.try_delete(outfile.name) # remove partial output
|
|
|
|
if os.environ.get('EMCC_FAST_COMPILER') == '0':
|
|
logging.critical('Non-fastcomp compiler is no longer available, please use fastcomp or an older version of emscripten')
|
|
sys.exit(1)
|
|
|
|
def main(args, compiler_engine, cache, temp_files, DEBUG, DEBUG_CACHE):
|
|
# Prepare settings for serialization to JSON.
|
|
settings = {}
|
|
for setting in args.settings:
|
|
name, value = setting.strip().split('=', 1)
|
|
settings[name] = json.loads(value)
|
|
|
|
# libraries
|
|
libraries = args.libraries[0].split(',') if len(args.libraries) > 0 else []
|
|
|
|
settings.setdefault('STRUCT_INFO', cache.get_path('struct_info.compiled.json'))
|
|
struct_info = settings.get('STRUCT_INFO')
|
|
|
|
if not os.path.exists(struct_info) and not settings.get('BOOTSTRAPPING_STRUCT_INFO'):
|
|
if DEBUG: logging.debug(' emscript: bootstrapping struct info...')
|
|
shared.Building.ensure_struct_info(struct_info)
|
|
if DEBUG: logging.debug(' emscript: bootstrapping struct info complete')
|
|
|
|
emscript(args.infile, settings, args.outfile, libraries, compiler_engine=compiler_engine,
|
|
temp_files=temp_files, DEBUG=DEBUG, DEBUG_CACHE=DEBUG_CACHE)
|
|
|
|
def _main(environ):
|
|
response_file = True
|
|
while response_file:
|
|
response_file = None
|
|
for index in range(1, len(sys.argv)):
|
|
if sys.argv[index][0] == '@':
|
|
# found one, loop again next time
|
|
response_file = True
|
|
response_file_args = read_response_file(sys.argv[index])
|
|
# slice in extra_args in place of the response file arg
|
|
sys.argv[index:index+1] = response_file_args
|
|
break
|
|
|
|
parser = optparse.OptionParser(
|
|
usage='usage: %prog [-h] [-H HEADERS] [-o OUTFILE] [-c COMPILER_ENGINE] [-s FOO=BAR]* infile',
|
|
description=('You should normally never use this! Use emcc instead. '
|
|
'This is a wrapper around the JS compiler, converting .ll to .js.'),
|
|
epilog='')
|
|
parser.add_option('-H', '--headers',
|
|
default=[],
|
|
action='append',
|
|
help='System headers (comma separated) whose #defines should be exposed to the compiled code.')
|
|
parser.add_option('-L', '--libraries',
|
|
default=[],
|
|
action='append',
|
|
help='Library files (comma separated) to use in addition to those in emscripten src/library_*.')
|
|
parser.add_option('-o', '--outfile',
|
|
default=sys.stdout,
|
|
help='Where to write the output; defaults to stdout.')
|
|
parser.add_option('-c', '--compiler',
|
|
default=None,
|
|
help='Which JS engine to use to run the compiler; defaults to the one in ~/.emscripten.')
|
|
parser.add_option('-s', '--setting',
|
|
dest='settings',
|
|
default=[],
|
|
action='append',
|
|
metavar='FOO=BAR',
|
|
help=('Overrides for settings defined in settings.js. '
|
|
'May occur multiple times.'))
|
|
parser.add_option('-T', '--temp-dir',
|
|
default=None,
|
|
help=('Where to create temporary files.'))
|
|
parser.add_option('-v', '--verbose',
|
|
action='store_true',
|
|
dest='verbose',
|
|
help='Displays debug output')
|
|
parser.add_option('-q', '--quiet',
|
|
action='store_false',
|
|
dest='verbose',
|
|
help='Hides debug output')
|
|
parser.add_option('--suppressUsageWarning',
|
|
action='store_true',
|
|
default=environ.get('EMSCRIPTEN_SUPPRESS_USAGE_WARNING'),
|
|
help=('Suppress usage warning'))
|
|
|
|
# Convert to the same format that argparse would have produced.
|
|
keywords, positional = parser.parse_args()
|
|
|
|
if not keywords.suppressUsageWarning:
|
|
logging.warning('''
|
|
==============================================================
|
|
WARNING: You should normally never use this! Use emcc instead.
|
|
==============================================================
|
|
''')
|
|
|
|
if len(positional) != 1:
|
|
raise RuntimeError('Must provide exactly one positional argument. Got ' + str(len(positional)) + ': "' + '", "'.join(positional) + '"')
|
|
keywords.infile = os.path.abspath(positional[0])
|
|
if isinstance(keywords.outfile, basestring):
|
|
keywords.outfile = open(keywords.outfile, 'w')
|
|
|
|
if keywords.temp_dir is None:
|
|
temp_files = get_configuration().get_temp_files()
|
|
temp_dir = get_configuration().TEMP_DIR
|
|
else:
|
|
temp_dir = os.path.abspath(keywords.temp_dir)
|
|
if not os.path.exists(temp_dir):
|
|
os.makedirs(temp_dir)
|
|
temp_files = tempfiles.TempFiles(temp_dir)
|
|
|
|
if keywords.compiler is None:
|
|
keywords.compiler = shared.COMPILER_ENGINE
|
|
|
|
if keywords.verbose is None:
|
|
DEBUG = get_configuration().DEBUG
|
|
DEBUG_CACHE = get_configuration().DEBUG_CACHE
|
|
else:
|
|
DEBUG = keywords.verbose
|
|
DEBUG_CACHE = keywords.verbose
|
|
|
|
cache = cache_module.Cache()
|
|
temp_files.run_and_clean(lambda: main(
|
|
keywords,
|
|
compiler_engine=keywords.compiler,
|
|
cache=cache,
|
|
temp_files=temp_files,
|
|
DEBUG=DEBUG,
|
|
DEBUG_CACHE=DEBUG_CACHE,
|
|
))
|
|
|
|
if __name__ == '__main__':
|
|
_main(environ=os.environ)
|