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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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