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- #!/usr/bin/env python
- #
- # Copyright 2016 the V8 project authors. All rights reserved.
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions are
- # met:
- #
- # * Redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer.
- # * Redistributions in binary form must reproduce the above
- # copyright notice, this list of conditions and the following
- # disclaimer in the documentation and/or other materials provided
- # with the distribution.
- # * Neither the name of Google Inc. nor the names of its
- # contributors may be used to endorse or promote products derived
- # from this software without specific prior written permission.
- #
- # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- import os.path
- import re
- import subprocess
- import sys
- def get_address_bounds():
- start = -1
- end = -1
- for arg in sys.argv:
- if arg.startswith("--start-address="):
- start = int(arg[-12:], 16)
- if arg.startswith("--stop-address="):
- end = int(arg[-12:], 16)
- return start, end
- def format_line(line):
- pieces = line.split(None, 3)
- return " " + pieces[0][2:] + ":\t" + pieces[3]
- def is_comment(line):
- stripped = line.strip()
- return stripped.startswith("--") or stripped.startswith(";;")
- def main():
- filename = sys.argv[-1]
- match = re.match(r"/tmp/perf-(.*)\.map", filename)
- if match:
- start, end = get_address_bounds()
- process_codefile = "code-" + match.group(1) + "-1.asm"
- if os.path.exists(process_codefile):
- codefile = open(process_codefile, "r")
- else:
- codefile = open("code.asm", "r")
- with codefile:
- printing = False
- for line in codefile:
- if line.startswith("0x"):
- addr = int(line.split()[0], 0)
- if start <= addr <= end:
- printing = True
- sys.stdout.write(format_line(line))
- elif printing:
- break
- elif printing:
- if not is_comment(line):
- break
- else:
- sys.stdout.write(line)
- else:
- sys.argv[0] = "objdump"
- sys.exit(subprocess.call(sys.argv))
- if __name__ == "__main__":
- main()
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