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1 #!/usr/bin/python2.4 | 1 #!/usr/bin/python2.4 |
2 # | 2 # |
3 # Copyright (c) 2009 The Chromium Authors. All rights reserved. | 3 # Copyright (c) 2009 The Chromium Authors. All rights reserved. |
4 # Use of this source code is governed by a BSD-style license that can be | 4 # Use of this source code is governed by a BSD-style license that can be |
5 # found in the LICENSE file. | 5 # found in the LICENSE file. |
6 # | 6 # |
7 # This generates symbol signatures with the same algorithm as | 7 # This generates symbol signatures with the same algorithm as |
8 # src/breakpad/linux/minidump_writer.cc@17081 | 8 # src/breakpad/linux/minidump_writer.cc@17081 |
9 | 9 |
10 import sys | 10 import sys |
11 import struct | 11 import struct |
12 | 12 |
13 if len(sys.argv) != 2: | 13 if len(sys.argv) != 2: |
14 sys.stderr.write("Error, no filename specified.\n") | 14 sys.stderr.write("Error, no filename specified.\n") |
15 sys.exit(1) | 15 sys.exit(1) |
16 | 16 |
17 bin = open(sys.argv[1]) | 17 bin = open(sys.argv[1]) |
18 data = bin.read(4096) | 18 data = bin.read(4096) |
19 if len(data) != 4096: | 19 if len(data) != 4096: |
20 sys.stderr.write("Error, did not read first page of data.\n"); | 20 sys.stderr.write("Error, did not read first page of data.\n"); |
21 sys.exit(1) | 21 sys.exit(1) |
22 bin.close() | 22 bin.close() |
23 | 23 |
24 signature = [0] * 16 | 24 signature = [0] * 16 |
25 for i in range(0, 4096): | 25 for i in range(0, 4096): |
26 signature[i % 16] ^= ord(data[i]) | 26 signature[i % 16] ^= ord(data[i]) |
27 | 27 |
28 out = ('%08x%04x%04x%02x%02x%02x%02x%02x%02x%02x%02x0' % | 28 # Append a 0 at the end for the generation number (always 0 on Linux) |
| 29 out = ('%08X%04X%04X%02X%02X%02X%02X%02X%02X%02X%02X0' % |
29 struct.unpack('I2H8B', struct.pack('16B', *signature))) | 30 struct.unpack('I2H8B', struct.pack('16B', *signature))) |
30 sys.stdout.write(out) | 31 sys.stdout.write(out) |
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