v8/tools/mac-nm
jarin fcce4797bc [profiler] Graphical front-end for tick processor.
Improvements:
- top-down call tree.
- interactive restriction to time interval.

Review-Url: https://codereview.chromium.org/2696903002
Cr-Commit-Position: refs/heads/master@{#43599}
2017-03-04 13:04:58 +00:00

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#!/bin/sh
# This script is a wrapper for OS X nm(1) tool. nm(1) perform C++ function
# names demangling, so we're piping its output to c++filt(1) tool which does it.
# But c++filt(1) comes with XCode (as a part of GNU binutils), so it doesn't
# guaranteed to exist on a system.
#
# An alternative approach is to perform demangling in tick processor, but
# for GNU C++ ABI this is a complex process (see cp-demangle.c sources), and
# can't be done partially, because term boundaries are plain text symbols, such
# as 'N', 'E', so one can't just do a search through a function name, it really
# needs to be parsed, which requires a lot of knowledge to be coded in.
if [ "`which c++filt`" == "" ]; then
nm "$@"
else
nm "$@" | sed -n "s/\([0-9a-fA-F]\{8,16\}\) [iItT] \(.*\)/\\1 \\2/p"\
| c++filt -p -i
fi