37 lines
894 B
Python
37 lines
894 B
Python
#!/usr/bin/env python
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import argparse
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import re
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import sys
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def main():
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argp = argparse.ArgumentParser()
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argp.add_argument('infile', type=argparse.FileType('rb'),
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help='Input vmcore file')
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argp.add_argument('outfile', type=argparse.FileType('wb'),
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help='Output vmcore file')
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args = argp.parse_args()
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inf = args.infile
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outf = args.outfile
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line_re = re.compile(r"^% RD: (\d+) (\d+)")
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# copy the first chunk that usually includes ELF headers
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# (not output by patched libfbsdvmcore since libelf reads this)
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outf.write(inf.read(1024))
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for l in sys.stdin:
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m = line_re.match(l)
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if m is None:
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continue
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offset, size = [int(x) for x in m.groups()]
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inf.seek(offset)
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outf.seek(offset)
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outf.write(inf.read(size))
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if __name__ == "__main__":
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main()
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