mirror of
https://github.com/moparisthebest/curl
synced 2024-12-22 08:08:50 -05:00
8ec2cb5544
As of 25-mar-2013 wcsdup() _wcsdup() and _tcsdup() are only used in WIN32 specific code, so tracking of these has not been extended for other build targets. Without this fix, memory tracking system on WIN32 builds, when using these functions, would provide misleading results. In order to properly extend this support for all targets curl.h would have to define curl_wcsdup_callback prototype and consequently wchar_t should be visible before that in curl.h. IOW curl_wchar_t defined in curlbuild.h and this pulling whatever system header is required to get wchar_t definition. Additionally a new curl_global_init_mem() function that also receives user defined wcsdup() callback would be required.
407 lines
11 KiB
Perl
Executable File
407 lines
11 KiB
Perl
Executable File
#!/usr/bin/env perl
|
|
#***************************************************************************
|
|
# _ _ ____ _
|
|
# Project ___| | | | _ \| |
|
|
# / __| | | | |_) | |
|
|
# | (__| |_| | _ <| |___
|
|
# \___|\___/|_| \_\_____|
|
|
#
|
|
# Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
#
|
|
# This software is licensed as described in the file COPYING, which
|
|
# you should have received as part of this distribution. The terms
|
|
# are also available at http://curl.haxx.se/docs/copyright.html.
|
|
#
|
|
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
# copies of the Software, and permit persons to whom the Software is
|
|
# furnished to do so, under the terms of the COPYING file.
|
|
#
|
|
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
# KIND, either express or implied.
|
|
#
|
|
###########################################################################
|
|
#
|
|
# Example input:
|
|
#
|
|
# MEM mprintf.c:1094 malloc(32) = e5718
|
|
# MEM mprintf.c:1103 realloc(e5718, 64) = e6118
|
|
# MEM sendf.c:232 free(f6520)
|
|
|
|
my $mallocs=0;
|
|
my $callocs=0;
|
|
my $reallocs=0;
|
|
my $strdups=0;
|
|
my $wcsdups=0;
|
|
my $showlimit;
|
|
|
|
while(1) {
|
|
if($ARGV[0] eq "-v") {
|
|
$verbose=1;
|
|
shift @ARGV;
|
|
}
|
|
elsif($ARGV[0] eq "-t") {
|
|
$trace=1;
|
|
shift @ARGV;
|
|
}
|
|
elsif($ARGV[0] eq "-l") {
|
|
# only show what alloc that caused a memlimit failure
|
|
$showlimit=1;
|
|
shift @ARGV;
|
|
}
|
|
else {
|
|
last;
|
|
}
|
|
}
|
|
|
|
my $maxmem;
|
|
|
|
sub newtotal {
|
|
my ($newtot)=@_;
|
|
# count a max here
|
|
|
|
if($newtot > $maxmem) {
|
|
$maxmem= $newtot;
|
|
}
|
|
}
|
|
|
|
my $file = $ARGV[0];
|
|
|
|
if(! -f $file) {
|
|
print "Usage: memanalyze.pl [options] <dump file>\n",
|
|
"Options:\n",
|
|
" -l memlimit failure displayed\n",
|
|
" -v Verbose\n",
|
|
" -t Trace\n";
|
|
exit;
|
|
}
|
|
|
|
open(FILE, "<$file");
|
|
|
|
if($showlimit) {
|
|
while(<FILE>) {
|
|
if(/^LIMIT.*memlimit$/) {
|
|
print $_;
|
|
last;
|
|
}
|
|
}
|
|
close(FILE);
|
|
exit;
|
|
}
|
|
|
|
|
|
my $lnum=0;
|
|
while(<FILE>) {
|
|
chomp $_;
|
|
$line = $_;
|
|
$lnum++;
|
|
if($line =~ /^LIMIT ([^ ]*):(\d*) (.*)/) {
|
|
# new memory limit test prefix
|
|
my $i = $3;
|
|
my ($source, $linenum) = ($1, $2);
|
|
if($trace && ($i =~ /([^ ]*) reached memlimit/)) {
|
|
print "LIMIT: $1 returned error at $source:$linenum\n";
|
|
}
|
|
}
|
|
elsif($line =~ /^MEM ([^ ]*):(\d*) (.*)/) {
|
|
# generic match for the filename+linenumber
|
|
$source = $1;
|
|
$linenum = $2;
|
|
$function = $3;
|
|
|
|
if($function =~ /free\(0x([0-9a-f]*)/) {
|
|
$addr = $1;
|
|
if(!exists $sizeataddr{$addr}) {
|
|
print "FREE ERROR: No memory allocated: $line\n";
|
|
}
|
|
elsif(-1 == $sizeataddr{$addr}) {
|
|
print "FREE ERROR: Memory freed twice: $line\n";
|
|
print "FREE ERROR: Previously freed at: ".$getmem{$addr}."\n";
|
|
}
|
|
else {
|
|
$totalmem -= $sizeataddr{$addr};
|
|
if($trace) {
|
|
print "FREE: malloc at ".$getmem{$addr}." is freed again at $source:$linenum\n";
|
|
printf("FREE: %d bytes freed, left allocated: $totalmem bytes\n", $sizeataddr{$addr});
|
|
}
|
|
|
|
newtotal($totalmem);
|
|
$frees++;
|
|
|
|
$sizeataddr{$addr}=-1; # set -1 to mark as freed
|
|
$getmem{$addr}="$source:$linenum";
|
|
|
|
}
|
|
}
|
|
elsif($function =~ /malloc\((\d*)\) = 0x([0-9a-f]*)/) {
|
|
$size = $1;
|
|
$addr = $2;
|
|
|
|
if($sizeataddr{$addr}>0) {
|
|
# this means weeeeeirdo
|
|
print "Mixed debug compile ($source:$linenum at line $lnum), rebuild curl now\n";
|
|
print "We think $sizeataddr{$addr} bytes are already allocated at that memory address: $addr!\n";
|
|
}
|
|
|
|
$sizeataddr{$addr}=$size;
|
|
$totalmem += $size;
|
|
|
|
if($trace) {
|
|
print "MALLOC: malloc($size) at $source:$linenum",
|
|
" makes totally $totalmem bytes\n";
|
|
}
|
|
|
|
newtotal($totalmem);
|
|
$mallocs++;
|
|
|
|
$getmem{$addr}="$source:$linenum";
|
|
}
|
|
elsif($function =~ /calloc\((\d*),(\d*)\) = 0x([0-9a-f]*)/) {
|
|
$size = $1*$2;
|
|
$addr = $3;
|
|
|
|
$arg1 = $1;
|
|
$arg2 = $2;
|
|
|
|
if($sizeataddr{$addr}>0) {
|
|
# this means weeeeeirdo
|
|
print "Mixed debug compile, rebuild curl now\n";
|
|
}
|
|
|
|
$sizeataddr{$addr}=$size;
|
|
$totalmem += $size;
|
|
|
|
if($trace) {
|
|
print "CALLOC: calloc($arg1,$arg2) at $source:$linenum",
|
|
" makes totally $totalmem bytes\n";
|
|
}
|
|
|
|
newtotal($totalmem);
|
|
$callocs++;
|
|
|
|
$getmem{$addr}="$source:$linenum";
|
|
}
|
|
elsif($function =~ /realloc\((\(nil\)|0x([0-9a-f]*)), (\d*)\) = 0x([0-9a-f]*)/) {
|
|
my ($oldaddr, $newsize, $newaddr) = ($2, $3, $4);
|
|
|
|
$totalmem -= $sizeataddr{$oldaddr};
|
|
if($trace) {
|
|
printf("REALLOC: %d less bytes and ", $sizeataddr{$oldaddr});
|
|
}
|
|
$sizeataddr{$oldaddr}=0;
|
|
|
|
$totalmem += $newsize;
|
|
$sizeataddr{$newaddr}=$newsize;
|
|
|
|
if($trace) {
|
|
printf("%d more bytes ($source:$linenum)\n", $newsize);
|
|
}
|
|
|
|
newtotal($totalmem);
|
|
$reallocs++;
|
|
|
|
$getmem{$oldaddr}="";
|
|
$getmem{$newaddr}="$source:$linenum";
|
|
}
|
|
elsif($function =~ /strdup\(0x([0-9a-f]*)\) \((\d*)\) = 0x([0-9a-f]*)/) {
|
|
# strdup(a5b50) (8) = df7c0
|
|
|
|
$dup = $1;
|
|
$size = $2;
|
|
$addr = $3;
|
|
$getmem{$addr}="$source:$linenum";
|
|
$sizeataddr{$addr}=$size;
|
|
|
|
$totalmem += $size;
|
|
|
|
if($trace) {
|
|
printf("STRDUP: $size bytes at %s, makes totally: %d bytes\n",
|
|
$getmem{$addr}, $totalmem);
|
|
}
|
|
|
|
newtotal($totalmem);
|
|
$strdups++;
|
|
}
|
|
elsif($function =~ /wcsdup\(0x([0-9a-f]*)\) \((\d*)\) = 0x([0-9a-f]*)/) {
|
|
# wcsdup(a5b50) (8) = df7c0
|
|
|
|
$dup = $1;
|
|
$size = $2;
|
|
$addr = $3;
|
|
$getmem{$addr}="$source:$linenum";
|
|
$sizeataddr{$addr}=$size;
|
|
|
|
$totalmem += $size;
|
|
|
|
if($trace) {
|
|
printf("WCSDUP: $size bytes at %s, makes totally: %d bytes\n",
|
|
$getmem{$addr}, $totalmem);
|
|
}
|
|
|
|
newtotal($totalmem);
|
|
$wcsdups++;
|
|
}
|
|
else {
|
|
print "Not recognized input line: $function\n";
|
|
}
|
|
}
|
|
# FD url.c:1282 socket() = 5
|
|
elsif($_ =~ /^FD ([^ ]*):(\d*) (.*)/) {
|
|
# generic match for the filename+linenumber
|
|
$source = $1;
|
|
$linenum = $2;
|
|
$function = $3;
|
|
|
|
if($function =~ /socket\(\) = (\d*)/) {
|
|
$filedes{$1}=1;
|
|
$getfile{$1}="$source:$linenum";
|
|
$openfile++;
|
|
}
|
|
elsif($function =~ /socketpair\(\) = (\d*) (\d*)/) {
|
|
$filedes{$1}=1;
|
|
$getfile{$1}="$source:$linenum";
|
|
$openfile++;
|
|
$filedes{$2}=1;
|
|
$getfile{$2}="$source:$linenum";
|
|
$openfile++;
|
|
}
|
|
elsif($function =~ /accept\(\) = (\d*)/) {
|
|
$filedes{$1}=1;
|
|
$getfile{$1}="$source:$linenum";
|
|
$openfile++;
|
|
}
|
|
elsif($function =~ /sclose\((\d*)\)/) {
|
|
if($filedes{$1} != 1) {
|
|
print "Close without open: $line\n";
|
|
}
|
|
else {
|
|
$filedes{$1}=0; # closed now
|
|
$openfile--;
|
|
}
|
|
}
|
|
}
|
|
# FILE url.c:1282 fopen("blabla") = 0x5ddd
|
|
elsif($_ =~ /^FILE ([^ ]*):(\d*) (.*)/) {
|
|
# generic match for the filename+linenumber
|
|
$source = $1;
|
|
$linenum = $2;
|
|
$function = $3;
|
|
|
|
if($function =~ /f[d]*open\(\"(.*)\",\"([^\"]*)\"\) = (\(nil\)|0x([0-9a-f]*))/) {
|
|
if($3 eq "(nil)") {
|
|
;
|
|
}
|
|
else {
|
|
$fopen{$4}=1;
|
|
$fopenfile{$4}="$source:$linenum";
|
|
$fopens++;
|
|
}
|
|
}
|
|
# fclose(0x1026c8)
|
|
elsif($function =~ /fclose\(0x([0-9a-f]*)\)/) {
|
|
if(!$fopen{$1}) {
|
|
print "fclose() without fopen(): $line\n";
|
|
}
|
|
else {
|
|
$fopen{$1}=0;
|
|
$fopens--;
|
|
}
|
|
}
|
|
}
|
|
# GETNAME url.c:1901 getnameinfo()
|
|
elsif($_ =~ /^GETNAME ([^ ]*):(\d*) (.*)/) {
|
|
# not much to do
|
|
}
|
|
|
|
# ADDR url.c:1282 getaddrinfo() = 0x5ddd
|
|
elsif($_ =~ /^ADDR ([^ ]*):(\d*) (.*)/) {
|
|
# generic match for the filename+linenumber
|
|
$source = $1;
|
|
$linenum = $2;
|
|
$function = $3;
|
|
|
|
if($function =~ /getaddrinfo\(\) = (\(nil\)|0x([0-9a-f]*))/) {
|
|
my $add = $2;
|
|
if($add eq "(nil)") {
|
|
;
|
|
}
|
|
else {
|
|
$addrinfo{$add}=1;
|
|
$addrinfofile{$add}="$source:$linenum";
|
|
$addrinfos++;
|
|
}
|
|
if($trace) {
|
|
printf("GETADDRINFO ($source:$linenum)\n");
|
|
}
|
|
}
|
|
# fclose(0x1026c8)
|
|
elsif($function =~ /freeaddrinfo\(0x([0-9a-f]*)\)/) {
|
|
if(!$addrinfo{$1}) {
|
|
print "freeaddrinfo() without getaddrinfo(): $line\n";
|
|
}
|
|
else {
|
|
$addrinfo{$1}=0;
|
|
$addrinfos--;
|
|
}
|
|
if($trace) {
|
|
printf("FREEADDRINFO ($source:$linenum)\n");
|
|
}
|
|
}
|
|
|
|
}
|
|
else {
|
|
print "Not recognized prefix line: $line\n";
|
|
}
|
|
}
|
|
close(FILE);
|
|
|
|
if($totalmem) {
|
|
print "Leak detected: memory still allocated: $totalmem bytes\n";
|
|
|
|
for(keys %sizeataddr) {
|
|
$addr = $_;
|
|
$size = $sizeataddr{$addr};
|
|
if($size > 0) {
|
|
print "At $addr, there's $size bytes.\n";
|
|
print " allocated by ".$getmem{$addr}."\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
if($openfile) {
|
|
for(keys %filedes) {
|
|
if($filedes{$_} == 1) {
|
|
print "Open file descriptor created at ".$getfile{$_}."\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
if($fopens) {
|
|
print "Open FILE handles left at:\n";
|
|
for(keys %fopen) {
|
|
if($fopen{$_} == 1) {
|
|
print "fopen() called at ".$fopenfile{$_}."\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
if($addrinfos) {
|
|
print "IPv6-style name resolve data left at:\n";
|
|
for(keys %addrinfofile) {
|
|
if($addrinfo{$_} == 1) {
|
|
print "getaddrinfo() called at ".$addrinfofile{$_}."\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
if($verbose) {
|
|
print "Mallocs: $mallocs\n",
|
|
"Reallocs: $reallocs\n",
|
|
"Callocs: $callocs\n",
|
|
"Strdups: $strdups\n",
|
|
"Wcsdups: $wcsdups\n",
|
|
"Frees: $frees\n",
|
|
"Allocations: ".($mallocs + $callocs + $reallocs + $strdups + $wcsdups)."\n";
|
|
|
|
print "Maximum allocated: $maxmem\n";
|
|
}
|