emscripten/emar.py at incoming · JavaScriptIOT/emscripten · GitHub

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#!/usr/bin/env python2

'''

emar - ar helper script

=======================

This script acts as a frontend replacement for ar. See emcc.

'''

from __future__ import print_function

from tools.toolchain_profiler import ToolchainProfiler

if __name__ == '__main__':

ToolchainProfiler.record_process_start()

import os, subprocess, sys

from tools import shared

# Main run() function

def run():

DEBUG = os.environ.get('EMCC_DEBUG')

if DEBUG == "0":

DEBUG = None

newargs = [shared.LLVM_AR] + sys.argv[1:]

if DEBUG:

print('emar:', sys.argv, ' ==> ', newargs, file=sys.stderr)

to_delete = []

if len(newargs) > 2:

if 'r' in newargs[1]:

# we are adding files to the archive.

# find the .a; everything after it is an input file.

# we add a hash to each input, to make them unique as

# possible, as llvm-ar cannot extract duplicate names

# (and only the basename is used!)

i = 1

while i < len(newargs):

if newargs[i].endswith('.a'):

import hashlib, shutil

for j in range(i+1, len(newargs)):

orig_name = newargs[j]

full_name = os.path.abspath(orig_name)

dir_name = os.path.dirname(full_name)

base_name = os.path.basename(full_name)

h = hashlib.md5(full_name.encode('utf-8')).hexdigest()[:8]

parts = base_name.split('.')

parts[0] += '_' + h

newname = '.'.join(parts)

full_newname = os.path.join(dir_name, newname)

if not os.path.exists(full_newname):

try: # it is ok to fail here, we just don't get hashing

shutil.copyfile(orig_name, full_newname)

newargs[j] = full_newname

to_delete.append(full_newname)

except:

pass

break

i += 1

if DEBUG:

print('Invoking ' + str(newargs))

subprocess.call(newargs, stdin=sys.stdin)

for d in to_delete:

shared.try_delete(d)

if __name__ == '__main__':

run()

sys.exit(0)

emscripten/emar.py at incoming · JavaScriptIOT/emscripten · GitHub

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