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import shutil, time, os
from subprocess import Popen, PIPE, STDOUT
CONFIG_FILE = os.path.expanduser('~/.emscripten')
if not os.path.exists(CONFIG_FILE):
shutil.copy(path_from_root('settings.py'), CONFIG_FILE)
exec(open(CONFIG_FILE, 'r').read())
# Tools
CLANG=os.path.expanduser(os.path.join(LLVM_ROOT, 'clang++'))
LLVM_LINK=os.path.join(LLVM_ROOT, 'llvm-link')
LLVM_OPT=os.path.expanduser(os.path.join(LLVM_ROOT, 'opt'))
LLVM_AS=os.path.expanduser(os.path.join(LLVM_ROOT, 'llvm-as'))
LLVM_DIS=os.path.expanduser(os.path.join(LLVM_ROOT, 'llvm-dis'))
LLVM_DIS_OPTS = ['-show-annotations'] # For LLVM 2.8+. For 2.7, you may need to do just []
LLVM_INTERPRETER=os.path.expanduser(os.path.join(LLVM_ROOT, 'lli'))
LLVM_COMPILER=os.path.expanduser(os.path.join(LLVM_ROOT, 'llc'))
# Engine tweaks
if '-s' not in SPIDERMONKEY_ENGINE:
SPIDERMONKEY_ENGINE += ['-s'] # Strict mode in SpiderMonkey. With V8 we check that fallback to non-strict works too
if 'gcparam' not in str(SPIDERMONKEY_ENGINE):
SPIDERMONKEY_ENGINE += ['-e', "gcparam('maxBytes', 1024*1024*1024);"] # Our very large files need lots of gc heap
# Utilities
def timeout_run(proc, timeout, note):
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)
return proc.communicate()[0]
def run_js(engine, filename, args, check_timeout=False, stdout=PIPE, stderr=STDOUT):
return timeout_run(Popen(engine + [filename] + (['--'] if 'v8' in engine[0] else []) + args,
stdout=stdout, stderr=stderr), 15*60 if check_timeout else None, 'Execution')
def to_cc(cxx):
# By default, LLVM_GCC and CLANG are really the C++ versions. This gets an explicit C version
return cxx.replace('clang++', 'clang').replace('g++', 'gcc')
def line_splitter(data):
'''
Silly little tool to split JSON arrays over many lines.
'''
out = ''
counter = 0
for i in range(len(data)):
out += data[i]
if data[i] == ' ' and counter > 60:
out += '\n'
counter = 0
else:
counter += 1
return out
def limit_size(string, MAX=80*20):
if len(string) < MAX: return string
return string[0:MAX] + '...'
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