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#!/usr/bin/env python
"""\
@file generate_breakpad_symbols.py
@author Brad Kittenbrink <brad@lindenlab.com>
@brief Simple tool for generating google_breakpad symbol information
for the crash reporter.
$LicenseInfo:firstyear=2010&license=viewerlgpl$
Second Life Viewer Source Code
Copyright (C) 2010-2011, Linden Research, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation;
version 2.1 of the License only.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
$/LicenseInfo$
"""
import collections
import fnmatch
import itertools
import operator
import os
import re
import sys
import shlex
import subprocess
import tarfile
import StringIO
import pprint
DEBUG=False
def usage():
print >>sys.stderr, "usage: %s search_dirs viewer_exes libs_suffix dump_syms_tool viewer_symbol_file" % sys.argv[0]
class MissingModuleError(Exception):
def __init__(self, modules):
Exception.__init__(self, "Failed to find required modules: %r" % modules)
self.modules = modules
def main(configuration, search_dirs, viewer_exes, libs_suffix, dump_syms_tool, viewer_symbol_file):
print "generate_breakpad_symbols run with args: %s" % str((configuration, search_dirs, viewer_exes, libs_suffix, dump_syms_tool, viewer_symbol_file))
if not re.match("release", configuration, re.IGNORECASE):
print "skipping breakpad symbol generation for non-release build."
return 0
# split up list of viewer_exes
# "'Second Life' SLPlugin" becomes ['Second Life', 'SLPlugin']
viewer_exes = shlex.split(viewer_exes)
found_required = dict([(module, False) for module in viewer_exes])
def matches(f):
if f in viewer_exes:
found_required[f] = True
return True
return fnmatch.fnmatch(f, libs_suffix)
search_dirs = search_dirs.split(";")
def list_files():
for search_dir in search_dirs:
for (dirname, subdirs, filenames) in os.walk(search_dir):
if DEBUG:
print "scanning '%s' for modules..." % dirname
for f in itertools.ifilter(matches, filenames):
yield os.path.join(dirname, f)
def dump_module(m):
print "dumping module '%s' with '%s'..." % (m, dump_syms_tool)
dsym_full_path = m
child = subprocess.Popen([dump_syms_tool, dsym_full_path] , stdout=subprocess.PIPE)
out, err = child.communicate()
return (m,child.returncode, out, err)
modules = {}
for m in list_files():
if DEBUG:
print "examining module '%s' ... " % m,
filename=os.path.basename(m)
if -1 != m.find("DWARF"):
# Just use this module; it has the symbols we want.
modules[filename] = m
if DEBUG:
print "found dSYM entry"
elif filename not in modules:
# Only use this if we don't already have a (possibly better) entry.
modules[filename] = m
if DEBUG:
print "found new entry"
elif DEBUG:
print "ignoring entry"
print "Found these following modules:"
pprint.pprint( modules )
out = tarfile.open(viewer_symbol_file, 'w:bz2')
for (filename,status,symbols,err) in itertools.imap(dump_module, modules.values()):
if status == 0:
module_line = symbols[:symbols.index('\n')]
module_line = module_line.split()
hash_id = module_line[3]
module = ' '.join(module_line[4:])
if sys.platform in ['win32', 'cygwin']:
mod_name = module[:module.rindex('.pdb')]
else:
mod_name = module
symbolfile = StringIO.StringIO(symbols)
info = tarfile.TarInfo("%(module)s/%(hash_id)s/%(mod_name)s.sym" % dict(module=module, hash_id=hash_id, mod_name=mod_name))
info.size = symbolfile.len
out.addfile(info, symbolfile)
else:
print >>sys.stderr, "warning: failed to dump symbols for '%s': %s" % (filename, err)
out.close()
missing_modules = [m for (m,_) in
itertools.ifilter(lambda (k,v): not v, found_required.iteritems())
]
if missing_modules:
print >> sys.stderr, "failed to generate %s" % viewer_symbol_file
os.remove(viewer_symbol_file)
raise MissingModuleError(missing_modules)
symbols = tarfile.open(viewer_symbol_file, 'r:bz2')
tarfile_members = symbols.getnames()
symbols.close()
for required_module in viewer_exes:
def match_module_basename(m):
return os.path.splitext(required_module)[0].lower() \
== os.path.splitext(os.path.basename(m))[0].lower()
# there must be at least one .sym file in tarfile_members that matches
# each required module (ignoring file extensions)
if not reduce(operator.or_, itertools.imap(match_module_basename, tarfile_members)):
print >> sys.stderr, "failed to find required %s in generated %s" \
% (required_module, viewer_symbol_file)
os.remove(viewer_symbol_file)
raise MissingModuleError([required_module])
print "successfully generated %s including required modules '%s'" % (viewer_symbol_file, viewer_exes)
return 0
if __name__ == "__main__":
if len(sys.argv) != 7:
usage()
sys.exit(1)
sys.exit(main(*sys.argv[1:]))
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