| Index: build/linux/dump_signature.py
|
| ===================================================================
|
| --- build/linux/dump_signature.py (revision 68615)
|
| +++ build/linux/dump_signature.py (working copy)
|
| @@ -1,56 +0,0 @@
|
| -#!/usr/bin/python
|
| -#
|
| -# Copyright (c) 2010 The Chromium Authors. All rights reserved.
|
| -# Use of this source code is governed by a BSD-style license that can be
|
| -# found in the LICENSE file.
|
| -#
|
| -# This generates symbol signatures with the same algorithm as
|
| -# src/breakpad/src/common/linux/file_id.cc@461
|
| -
|
| -import struct
|
| -import sys
|
| -import subprocess
|
| -
|
| -if len(sys.argv) != 2:
|
| - sys.stderr.write("Error, no filename specified.\n")
|
| - sys.exit(1)
|
| -
|
| -# Shell out to objdump to get the offset of the .text section
|
| -objdump = subprocess.Popen(['objdump', '-h', sys.argv[1]], stdout = subprocess.PIPE)
|
| -(sections, _) = objdump.communicate()
|
| -if objdump.returncode != 0:
|
| - sys.stderr.write('Failed to run objdump to find .text section.\n')
|
| - sys.exit(1)
|
| -
|
| -text_section = [x for x in sections.splitlines() if '.text' in x]
|
| -if len(text_section) == 0:
|
| - sys.stderr.write('objdump failed to find a .text section.\n')
|
| - sys.exit(1)
|
| -text_section = text_section[0]
|
| -try:
|
| - file_offset = int(text_section.split()[5], 16)
|
| -except ValueError:
|
| - sys.stderr.write("Failed to parse objdump output. Here is the failing line:\n");
|
| - sys.stderr.write(text_section)
|
| - sys.exit(1)
|
| -
|
| -bin = open(sys.argv[1])
|
| -bin.seek(file_offset)
|
| -if bin.tell() != file_offset:
|
| - sys.stderr.write("Failed to seek to the .text segment. Truncated file?\n");
|
| - sys.exit(1)
|
| -
|
| -data = bin.read(4096)
|
| -if len(data) != 4096:
|
| - sys.stderr.write("Error, did not read first page of data.\n");
|
| - sys.exit(1)
|
| -bin.close()
|
| -
|
| -signature = [0] * 16
|
| -for i in range(0, 4096):
|
| - signature[i % 16] ^= ord(data[i])
|
| -
|
| -# Append a 0 at the end for the generation number (always 0 on Linux)
|
| -out = ('%08X%04X%04X%02X%02X%02X%02X%02X%02X%02X%02X0' %
|
| - struct.unpack('I2H8B', struct.pack('16B', *signature)))
|
| -sys.stdout.write(out)
|
|
|