Bug #51216 [Com]: Segmentation fault when compiling PHP with PHAR

Edit report at http://bugs.php.net/bug.php?id=51216&edit=1

 ID:               51216
 Comment by:       remco at maxserv dot nl
 Reported by:      dtm2mcs at gmail dot com
 Summary:          Segmentation fault when compiling PHP with PHAR
 Status:           Open
 Type:             Bug
 Package:          PHAR related
 Operating System: Ubuntu 6.04 + CentOS 5.4
 PHP Version:      5.3.2

 New Comment:

I can confirm that this problem exists.

Compiled with apache MPM-prefork, everything went fine.

Switched to MPM-worker, breaks at the same point as mentioned in this
report.
(Debian, Linux KPI 2.6.26-2-686 #1 SMP Tue Mar 9 17:35:51 UTC 2010 i686
GNU/Linux)

Configure used for apache:
./configure --prefix=/usr/local/apache2 --enable-so --enable-auth-digest
--enable-cache --enable-deflate --enable-expires --enable-headers
--enable-info --enable-logio --enable-mime-magic --enable-proxy
--enable-rewrite --enable-speling --enable-ssl --enable-unique-id
--with-mpm=worker

Configure used for PHP:
 './configure' '--prefix=/usr/lib/php5' '--host=x86-pc-linux-gnu'
'--mandir=/usr/lib/php5/man' '--infodir=/usr/lib/php5/info'
'--sysconfdir=/etc' '--cache-file=./config.cache' '--with-libdir=lib'
'--with-pcre-regex=/usr' '--enable-cli' '--with-apxs2=/usr/bin/apxs2'
'--with-config-file-path=/etc/php/apache2-php5'
'--with-config-file-scan-dir=/etc/php/apache2-php5/ext-active'
'--with-pear' '--enable-bcmath' '--with-bz2' '--enable-calendar'
'--with-curl' '--with-curlwrappers' '--enable-exif' '--enable-ftp'
'--with-gettext' '--without-gmp' '--with-kerberos' '--enable-mbstring'
'--with-mcrypt' '--with-mhash' '--with-mssql' '--with-openssl'
'--with-openssl-dir=/usr' '--disable-pcntl' '--without-pgsql'
'--without-pspell' '--without-recode' '--disable-shmop' '--with-snmp'
'--enable-soap' '--enable-sockets' '--without-sybase-ct'
'--disable-sysvmsg' '--disable-sysvsem' '--disable-sysvshm'
'--without-tidy' '--disable-wddx' '--with-xmlrpc' '--with-xsl'
'--enable-zip' '--with-zlib' '--disable-debug' '--without-enchant'
'--disable-intl' '--enable-phar' '--enable-dba' '--without-cdb'
'--without-db4' '--disable-flatfile' '--with-gdbm' '--disable-inifile'
'--without-qdbm' '--with-freetype-dir=/usr' '--with-t1lib=/usr'
'--disable-gd-jis-conv' '--with-jpeg-dir=/usr' '--with-png-dir=/usr'
'--with-xpm-dir=/usr' '--with-gd' '--with-imap' '--with-imap-ssl'
'--with-ldap' '--without-ldap-sasl' '--with-mysql=/usr/local/mysql'
'--with-mysql-sock=/var/run/mysqld/mysqld.sock'
'--with-mysqli=/usr/bin/mysql_config' '--with-unixODBC=/usr'
'--without-adabas' '--without-birdstep' '--without-dbmaker'
'--without-empress' '--without-esoob' '--without-ibm-db2'
'--without-iodbc' '--without-sapdb' '--without-solid' '--with-pdo-dblib'
'--with-pdo-mysql=/usr' '--with-pdo-odbc=unixODBC,/usr'
'--without-pdo-pgsql' '--with-readline' '--without-libedit'
'--without-mm' '--without-sqlite'

Building without phar works, but then 'make install' fails with a
segmentation fault as well.


Previous Comments:
------------------------------------------------------------------------
[2010-04-09 23:18:38] holderm at lycos dot com

It looks like it's more than a phar problem.  I can build it rith phar
disabled but it still won't run anything other than the --version
option.

Build complete.
Don't forget to run 'make test'.

/app/psoft/devl/packages/php/php-5.3.2/
 hdlmpdu4/blk10.1/dev > make test

Build complete.
Don't forget to run 'make test'.

Segmentation Fault - core dumped
make: [test] Error 139 (ignored)
/app/psoft/devl/packages/php/php-5.3.2/
 hdlmpdu4/blk10.1/dev > ll ./sapi/cli/php
-rwxr-xr-x   1 lmpjob   lmpjob   18524408 Apr  9 16:25 ./sapi/cli/php
/app/psoft/devl/packages/php/php-5.3.2/
 hdlmpdu4/blk10.1/dev > ./sapi/cli/php --version
PHP 5.3.2 (cli) (built: Apr  8 2010 18:07:52)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies

------------------------------------------------------------------------
[2010-04-09 22:21:18] holderm at lycos dot com

I've got a workaround.  The problem seems to be that the
build_precommand.php script cannot run on systems that do not have a
working version of php.

I think the Makefile is doing this for me already but just to be sure I
tried changing the shebang from #!/usr/bin/php to my local
#!/app/psoft/devl/packages/php/php-5.3.2/sapi/cli/php (based on what I
thought the Makefile was doing).  I kept running it from the command
line and getting things like this (I was adding my own debugging info on
lines that begin with // ):

/app/psoft/devl/packages/php/php-5.3.2/ext/phar/
 hdlmpdu4/blk10.1/dev > ./build_precommand.php
<?php
/** @file phar.php
 * @ingroup Phar
 * @brief class Phar Pre Command
 * @author  Marcus Boerger
 * @date    2007 - 2008
 *
 * Phar Command
 */
foreach(array("SPL", "Reflection", "Phar") as $ext) {
        if (!extension_loaded($ext)) {
                echo "$argv[0] requires PHP extension $ext.\n";
                exit(1);
        }
}

if (!class_exists('DirectoryTreeIterator', 0))
{
// name == DirectoryTreeIterator
// file(dirname('__FILE__') . '/phar/' .
strtolower('DirectoryTreeIterator') . '.inc');
// g == __FILE__/phar/$name.inc
Segmentation Fault(coredump)

Finally I decided to bring over a working php executable from another
server and give it a try:

/app/psoft/devl/packages/php/php-5.3.2/ext/phar/
 hdlmpdu4/blk10.1/dev > which php
/app/psoft/devl/bin/php
/app/psoft/devl/packages/php/php-5.3.2/ext/phar/
 hdlmpdu4/blk10.1/dev > /app/psoft/devl/bin/php --version
PHP 5.0.2 (cli) (built: Oct 21 2004 17:00:20)
Copyright (c) 1997-2004 The PHP Group
Zend Engine v2.0.2, Copyright (c) 1998-2004 Zend Technologies
/app/psoft/devl/packages/php/php-5.3.2/ext/phar/
 hdlmpdu4/blk10.1/dev > ./build_precommand.php
<?php
/** @file phar.php
 * @ingroup Phar
 * @brief class Phar Pre Command
 * @author  Marcus Boerger
 * @date    2007 - 2008
 *
 * Phar Command
 */
foreach(array("SPL", "Reflection", "Phar") as $ext) {
        if (!extension_loaded($ext)) {
                echo "$argv[0] requires PHP extension $ext.\n";
                exit(1);
        }
}

if (!class_exists('DirectoryTreeIterator', 0))
{
// name == DirectoryTreeIterator
// file(dirname('__FILE__') . '/phar/' .
strtolower('DirectoryTreeIterator') . '.inc');
// g == __FILE__/phar/$name.inc
// f == Array
// f == Array
// c == 53

/** @file directorytreeiterator.inc
 * @ingroup Examples
 * @brief class DirectoryTreeIterator
 * @author  Marcus Boerger
 * @date    2003 - 2008
 *
 * SPL - Standard PHP Library
 */

/** @ingroup Examples
 * @brief   DirectoryIterator to generate ASCII graphic directory trees
 * @author  Marcus Boerger
 * @version 1.1
 */
class DirectoryTreeIterator extends RecursiveIteratorIterator
{
        /** Construct from a path.
         * @param $path directory to iterate
         */
        function __construct($path)

So, the problem is that the php executable that's built as an interem
version for running the build_precommand.php script is not able to use
the strtolower() function or the dirname() function (as far as my
testing got, it bombed on each of those isolated cases).

I was able to make a kludge workaround by modifing the Makefile
replacing $(PHP_PHARCMD_EXECUTABLE) with my executable, but the next
step failed (target ext/phar/phar.phar:).  So I had to disable phar.

------------------------------------------------------------------------
[2010-04-09 00:22:37] holderm at lycos dot com

The problem is in build_precommand.php.  When I run it it gets to the
open curly brace and churns for a couple seconds, then it Seg faults. 
I'm not sure how to fix it but will try changing it.

/app/psoft/devl/packages/php/php-5.3.2/ext/phar/
 hdlmpdu4/blk10.1/dev > ./build_precommand.php
<?php
/** @file phar.php
 * @ingroup Phar
 * @brief class Phar Pre Command
 * @author  Marcus Boerger
 * @date    2007 - 2008
 *
 * Phar Command
 */
foreach(array("SPL", "Reflection", "Phar") as $ext) {
        if (!extension_loaded($ext)) {
                echo "$argv[0] requires PHP extension $ext.\n";
                exit(1);
        }
}

if (!class_exists('DirectoryTreeIterator', 0))
{
Segmentation Fault(coredump)

------------------------------------------------------------------------
[2010-04-07 23:34:47] holderm at lycos dot com

I'm getting the same thing with Solaris 10 and gcc 4.4.3.  It seems the
Makefile is not generating a full ext/phar/phar.php (when compared to
ext/phar/phar/phar.php).  The code ends with an open curly brace:

Generating phar.php
Segmentation Fault - core dumped
make: *** [ext/phar/phar.php] Error 139
/app/psoft/devl/packages/php/php-5.3.2/
 hdlmpdu4/blk10.1/dev > ll ext/phar/phar.php
-rw-r--r--   1 lmpjob   lmpjob       351 Apr  7 16:10 ext/phar/phar.php
/app/psoft/devl/packages/php/php-5.3.2/
 hdlmpdu4/blk10.1/dev > ll ext/phar/phar/phar.php
-rwxr-xr-x   1 lmpjob   lmpjob       992 Aug  1  2008
ext/phar/phar/phar.php
/app/psoft/devl/packages/php/php-5.3.2/
 hdlmpdu4/blk10.1/dev > cat ext/phar/phar.php
<?php
/** @file phar.php
 * @ingroup Phar
 * @brief class Phar Pre Command
 * @author  Marcus Boerger
 * @date    2007 - 2008
 *
 * Phar Command
 */
foreach(array("SPL", "Reflection", "Phar") as $ext) {
        if (!extension_loaded($ext)) {
                echo "$argv[0] requires PHP extension $ext.\n";
                exit(1);
        }
}

if (!class_exists('DirectoryTreeIterator', 0))
{

As far as I can tell this part of the Makefile is where the problem is:

ext/phar/phar.php:
/app/psoft/devl/packages/php/php-5.3.2/ext/phar/build_precommand.php
/app/psoft/devl/packages/php/php-5.3.2/ext/phar/phar/*.inc
/app/psoft/devl/packages/php/php-5.3.2/ext/phar/phar/*.php
$(SAPI_CLI_PATH)
        -@echo "Generating phar.php"
        @$(PHP_PHARCMD_EXECUTABLE) $(PHP_PHARCMD_SETTINGS)
/app/psoft/devl/packages/php/php-5.3.2/ext/phar/build_precommand.php >
ext/phar/phar.php

My configure options were:

/app/psoft/devl/packages/php/php-5.3.2/
 hdlmpdu4/blk10.1/dev > cat config.nice
#! /bin/sh
#
# Created by configure

'./configure' \
'--prefix=/app/psoft/scripts/pkg/php5' \
'--enable-cli' \
'--disable-cgi' \
'--with-bz2' \
'--with-zlib' \
'--with-png-dir=/app/psoft/scripts/pkg/png-1.4.1' \
'--with-gd' \
'--with-oci8=/app/oracle/product/10.2.0' \
"$@"

------------------------------------------------------------------------
[2010-03-30 17:39:38] tony at tonybibbs dot com

Same issue on 32bit Ubuntu 9.10

------------------------------------------------------------------------


The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at

    http://bugs.php.net/bug.php?id=51216


-- 
Edit this bug report at http://bugs.php.net/bug.php?id=51216&edit=1