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https://github.com/klzgrad/naiveproxy.git
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79 lines
2.4 KiB
Python
Executable File
79 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2014 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Simple mock for addr2line.
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Outputs mock symbol information, with each symbol being a function of the
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original address (so it is easy to double-check consistency in unittests).
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"""
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import optparse
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import os
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import posixpath
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import sys
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import time
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def main(argv):
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parser = optparse.OptionParser()
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parser.add_option('-e', '--exe', dest='exe') # Path of the debug-library.so.
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# Silently swallow the other unnecessary arguments.
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parser.add_option('-C', '--demangle', action='store_true')
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parser.add_option('-f', '--functions', action='store_true')
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parser.add_option('-i', '--inlines', action='store_true')
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options, _ = parser.parse_args(argv[1:])
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lib_file_name = posixpath.basename(options.exe)
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processed_sym_count = 0
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crash_every = int(os.environ.get('MOCK_A2L_CRASH_EVERY', 0))
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hang_every = int(os.environ.get('MOCK_A2L_HANG_EVERY', 0))
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while(True):
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line = sys.stdin.readline().rstrip('\r')
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if not line:
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break
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# An empty line should generate '??,??:0' (is used as marker for inlines).
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if line == '\n':
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print '??'
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print '??:0'
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sys.stdout.flush()
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continue
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addr = int(line, 16)
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processed_sym_count += 1
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if crash_every and processed_sym_count % crash_every == 0:
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sys.exit(1)
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if hang_every and processed_sym_count % hang_every == 0:
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time.sleep(1)
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# Addresses < 1M will return good mock symbol information.
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if addr < 1024 * 1024:
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print 'mock_sym_for_addr_%d' % addr
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print 'mock_src/%s.c:%d' % (lib_file_name, addr)
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# Addresses 1M <= x < 2M will return symbols with a name but a missing path.
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elif addr < 2 * 1024 * 1024:
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print 'mock_sym_for_addr_%d' % addr
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print '??:0'
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# Addresses 2M <= x < 3M will return unknown symbol information.
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elif addr < 3 * 1024 * 1024:
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print '??'
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print '??'
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# Addresses 3M <= x < 4M will return inlines.
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elif addr < 4 * 1024 * 1024:
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print 'mock_sym_for_addr_%d_inner' % addr
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print 'mock_src/%s.c:%d' % (lib_file_name, addr)
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print 'mock_sym_for_addr_%d_middle' % addr
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print 'mock_src/%s.c:%d' % (lib_file_name, addr)
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print 'mock_sym_for_addr_%d_outer' % addr
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print 'mock_src/%s.c:%d' % (lib_file_name, addr)
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sys.stdout.flush()
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if __name__ == '__main__':
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main(sys.argv) |