def handle_symbol_file(args, symbol_file):
"""Regenerate the contents of a given symbol file."""
if args.filter_in_place:
output = open(symbol_file).read()
else:
basename = os.path.splitext(os.path.basename(symbol_file))[0]
if not basename.startswith('lib'):
basename = 'lib' + basename
if basename.endswith('_asmjs'):
basename = basename.rsplit('_asmjs', 1)[0]
basename = basename.replace('cxx', 'c++')
cache_dir = cache.Cache().dirname
pattern = os.path.join(cache_dir, basename + '.*')
libs = glob.glob(pattern)
if basename == 'libgl':
# For libgl we generate the symbol list based on a superset of all
# library variants.
pattern = os.path.join(cache_dir, basename + '-*.*')
libs += glob.glob(pattern)
if not libs:
print(cache_dir)
print("%s: Unable to find library to generate symbols from" %
symbol_file)
return
print('Generating %s based on syms from: %s' % (basename, libs))
output = ''
for lib in libs:
output += shared.run_process([shared.LLVM_NM, '-g', lib],
stdout=shared.PIPE).stdout
new_symbols = filter_and_sort(output)
with open(symbol_file, 'w') as f:
f.write(new_symbols)
def get_lib_file(symbol_file):
basename = os.path.splitext(os.path.basename(symbol_file))[0]
cache_dir = cache.Cache().dirname
lib_extension = 'a' if shared.Settings.WASM_BACKEND else 'bc'
return os.path.join(cache_dir, basename + '.' + lib_extension)
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('--relooper',
default=None,
help='Which relooper file to use if RELOOP is enabled.')
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(
'-j',
'--jcache',
action='store_true',
default=False,
help=
('Enable jcache (ccache-like caching of compilation results, for faster incremental builds).'
))
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:
print >> sys.stderr, '''
==============================================================
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.relooper:
relooper = os.path.abspath(keywords.relooper)
else:
relooper = None # use the cache
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:
from tools import shared
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,
jcache=cache_module.JCache(cache) if keywords.jcache else None,
relooper=relooper,
temp_files=temp_files,
DEBUG=DEBUG,
DEBUG_CACHE=DEBUG_CACHE,
))
def get_lib_file(symbol_file):
basename = os.path.splitext(os.path.basename(symbol_file))[0]
cache_dir = cache.Cache().dirname
return os.path.join(cache_dir, basename + '.a')
