73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
#!/usr/bin/env python
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import json
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import os
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import re
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import subprocess
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import sys
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import argparse
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class CrashLogPatcher:
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SYMBOL_REGEX = re.compile(r'^([0-9a-fA-F]+) T _(.*)$')
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UUID_REGEX = re.compile(r'UUID: ([-0-9a-fA-F]+) \(([^\(]+)\) .*')
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def __init__(self, data, binary, offsets, json):
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self.data = data
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self.binary = binary
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self.offsets = offsets
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self.json = json
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def patch_executable(self):
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self.data = self.data.replace("@EXEC@", self.binary)
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self.data = self.data.replace("@NAME@", os.path.basename(self.binary))
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def patch_uuid(self):
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output = subprocess.check_output(['dwarfdump', '--uuid', self.binary]).decode("utf-8")
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m = self.UUID_REGEX.match(output)
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if m:
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self.data = self.data.replace("@UUID@", m.group(1))
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def patch_addresses(self):
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if not self.offsets:
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return
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output = subprocess.check_output(['nm', self.binary]).decode("utf-8")
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for line in output.splitlines():
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m = self.SYMBOL_REGEX.match(line)
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if m:
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address = m.group(1)
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symbol = m.group(2)
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if symbol in self.offsets:
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patch_addr = int(m.group(1), 16) + int(
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self.offsets[symbol])
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if self.json:
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patch_addr = patch_addr - 0x100000000
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representation = int
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else:
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representation = hex
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self.data = self.data.replace(
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"@{}@".format(symbol), str(representation(patch_addr)))
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='Crashlog Patcher')
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parser.add_argument('--binary', required=True)
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parser.add_argument('--crashlog', required=True)
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parser.add_argument('--offsets', required=True)
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parser.add_argument('--json', default=False, action='store_true')
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args = parser.parse_args()
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offsets = json.loads(args.offsets)
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with open(args.crashlog, 'r') as file:
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data = file.read()
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p = CrashLogPatcher(data, args.binary, offsets, args.json)
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p.patch_executable()
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p.patch_uuid()
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p.patch_addresses()
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with open(args.crashlog, 'w') as file:
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file.write(p.data)
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