зеркало из https://github.com/mozilla/pjs.git
85 строки
3.3 KiB
Perl
Executable File
85 строки
3.3 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
# ***** BEGIN LICENSE BLOCK *****
|
|
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
#
|
|
# The contents of this file are subject to the Mozilla Public License Version
|
|
# 1.1 (the "License"); you may not use this file except in compliance with
|
|
# the License. You may obtain a copy of the License at
|
|
# http://www.mozilla.org/MPL/
|
|
#
|
|
# Software distributed under the License is distributed on an "AS IS" basis,
|
|
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
# for the specific language governing rights and limitations under the
|
|
# License.
|
|
#
|
|
# The Original Code is fix-linux-stack.pl.
|
|
#
|
|
# The Initial Developer of the Original Code is L. David Baron.
|
|
# Portions created by the Initial Developer are Copyright (C) 2003
|
|
# the Initial Developer. All Rights Reserved.
|
|
#
|
|
# Contributor(s):
|
|
# L. David Baron <dbaron@dbaron.org> (original author)
|
|
#
|
|
# Alternatively, the contents of this file may be used under the terms of
|
|
# either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
# in which case the provisions of the GPL or the LGPL are applicable instead
|
|
# of those above. If you wish to allow use of your version of this file only
|
|
# under the terms of either the GPL or the LGPL, and not to allow others to
|
|
# use your version of this file under the terms of the MPL, indicate your
|
|
# decision by deleting the provisions above and replace them with the notice
|
|
# and other provisions required by the GPL or the LGPL. If you do not delete
|
|
# the provisions above, a recipient may use your version of this file under
|
|
# the terms of any one of the MPL, the GPL or the LGPL.
|
|
#
|
|
# ***** END LICENSE BLOCK *****
|
|
|
|
# This script uses addr2line (part of binutils) to process the output of
|
|
# nsTraceRefcnt's Linux stack walking code. This is useful for two
|
|
# things:
|
|
# (1) Getting line number information out of
|
|
# |nsTraceRefcntImpl::WalkTheStack|'s output in debug builds.
|
|
# (2) Getting function names out of |nsTraceRefcntImpl::WalkTheStack|'s
|
|
# output on optimized builds (where it mostly prints UNKNOWN
|
|
# because only a handful of symbols are exported from component
|
|
# libraries).
|
|
#
|
|
# Use the script by piping output containing stacks (such as raw stacks
|
|
# or make-tree.pl balance trees) through this script.
|
|
|
|
use strict;
|
|
use IPC::Open2;
|
|
|
|
my %pipes;
|
|
while (<>) {
|
|
my $line = $_;
|
|
if ($line =~ /^([ \|0-9-]*)(.*) ?\[([^ ]*) \+(0x[0-9A-F]{1,8})\](.*)$/) {
|
|
my $before = $1; # allow preservation of balance trees
|
|
my $badsymbol = $2;
|
|
my $file = $3;
|
|
my $address = $4;
|
|
my $after = $5; # allow preservation of counts
|
|
|
|
my $pipe;
|
|
unless (exists $pipes{$file}) {
|
|
my $pid = open2($pipe->{read}, $pipe->{write},
|
|
'/usr/bin/addr2line', '-C', '-f', '-e', "$file");
|
|
$pipes{$file} = $pipe;
|
|
} else {
|
|
$pipe = $pipes{$file};
|
|
}
|
|
|
|
my $out = $pipe->{write};
|
|
my $in = $pipe->{read};
|
|
print {$out} "$address\n";
|
|
chomp(my $symbol = <$in>);
|
|
chomp(my $fileandline = <$in>);
|
|
if ($symbol eq "??") { $symbol = $badsymbol; }
|
|
if ($fileandline eq "??:0") { $fileandline = $file; }
|
|
print "$before$symbol ($fileandline)$after\n";
|
|
} else {
|
|
print $line;
|
|
}
|
|
}
|