#17653 [Com]: FAQ: use same png libraries with PHP and GD.

ID: 17653 Comment by: jean-christophe.aude@cea.fr Reported By: huberfelix@web.de Status: Open Bug Type: Documentation problem Operating System: Linux PHP Version: 4.0CVS-2002-06-08 New Comment: Hi, Sorry guys but i still have the same pb. libpng1.2.5 + gd2.0.11 (no fix) + php4.3.0 (Stable). everything is link with the same libraries : % ldd /usr/lib/apache/libphp4.so ... libz.so.1 => /lib/libz.so.1 (0x40284000) libtiff.so.3 => /usr/lib/libtiff.so.3 (0x40293000) libpng12.so.0 => /usr/local/lib/libpng12.so.0 (0x402d9000) libgd.so.2 => /usr/local/lib/libgd.so.2 (0x40345000) libfreetype.so.6 => /usr/X11R6/lib/libfreetype.so.6 (0x4037d000) libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x403c0000) libXpm.so.4 => /usr/X11R6/lib/libXpm.so.4 (0x40487000) libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x40497000) ... and $ ldd /usr/local/lib/libgd.so.2 ... libXpm.so.4 => /usr/X11R6/lib/libXpm.so.4 (0x4004f000) libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x4005f000) libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x40126000) libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x40148000) libpng12.so.0 => /usr/local/lib/libpng12.so.0 (0x40190000) libz.so.1 => /lib/libz.so.1 (0x401c0000) the back-trace gives.. #0 0x00000571 in ?? () #1 0x406be276 in png_create_info_struct () from /usr/local/lib/libpng12.so.0 #2 0x4072f29d in gdImageCreateFromPngCtx (infile=0x8103440) at gd_png.c:156 #3 0x4072f1cb in gdImageCreateFromPng (inFile=0x81031b0) at gd_png.c:105 #4 0x4041e59b in _php_image_create_from (ht=1, return_value=0x80fe9ac, this_ptr=0x0, return_value_used=1, image_type=2, tn=0x40564987 "PNG", func_p=0x4072f1a0 <gdImageCreateFromPng>, ioctx_func_p=0x4072f1e0 <gdImageCreateFromPngCtx>) at /usr/local/src/Serveur-WEB/php-4.3.0/ext/gd/gd.c:1367 #5 0x4041e6bb in zif_imagecreatefrompng (ht=1, return_value=0x80fe9ac, this_ptr=0x0, return_value_used=1) at /usr/local/src/Serveur-WEB/php-4.3.0/ext/gd/gd.c:1413 #6 0x4055b00b in execute (op_array=0x80fe88c) at /usr/local/src/Serveur-WEB/php-4.3.0/Zend/zend_execute.c:1596 #7 0x405487b0 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/local/src/Serveur-WEB/php-4.3.0/Zend/zend.c:864 #8 0x4050ed3b in php_execute_script (primary_file=0xbffff3c0) at /usr/local/src/Serveur-WEB/php-4.3.0/main/main.c:1573 #9 0x4056014e in apache_php_module_main (r=0x80f2b20, display_source_mode=0) at /usr/local/src/Serveur-WEB/php-4.3.0/sapi/apache/sapi_apache.c:55 #10 0x405610bc in send_php (r=0x80f2b20, display_source_mode=0, filename=0x80f50c0 "/var/www/html/SadeLAB-WWW/Gel/TEST4.php") at /usr/local/src/Serveur-WEB/php-4.3.0/sapi/apache/mod_php4.c:556 #11 0x40561135 in send_parsed_php (r=0x80f2b20) at /usr/local/src/Serveur-WEB/php-4.3.0/sapi/apache/mod_php4.c:571 #12 0x080548a9 in ap_invoke_handler () #13 0x08067e30 in ap_die () #14 0x0806820f in ap_process_request () #15 0x0805ea47 in ap_update_child_status () #16 0x0805eca0 in ap_update_child_status () #17 0x0805f442 in ap_update_child_status () #18 0x0805fe09 in main () #19 0x4014c280 in __libc_start_main () from /lib/libc.so.6 The fact that both libraries are identical doesn't resolve this bug.. Here is the buggy script. <?php header("Content-type: image/jpeg"); header("Cache-Control: no-cache, must-revalidate"); header("Pragma: no-cache"); $im = ImageCreateFromPNG("basn2c16.png"); ImageJPEG($im); ?> Previous Comments: ------------------------------------------------------------------------ [2002-06-13 09:48:16] mfischer@php.net Yup, good idea, reclassifying. ------------------------------------------------------------------------ [2002-06-13 09:46:13] huberfelix@web.de Correct with libpng-1.0.8 as GD and PHP source it works fine... an entry for the faq? ------------------------------------------------------------------------ [2002-06-09 10:41:18] sniper@php.net Forgot..make sure your GD library is linked with the SAME libpng as PHP is. --Jani ------------------------------------------------------------------------ [2002-06-09 10:40:32] sniper@php.net I just tried with libpng-1.2.0, latest PHP (4.3.0-dev) and gd 2.0.1 (the 'original' without our fixes) and could not reproduce this segfault. Please try the latest (non stable!) snapshot from http://snaps.php.net/ --Jani ------------------------------------------------------------------------ [2002-06-09 07:27:27] huberfelix@web.de hmm i compiled cvs of today with --with-png-dir=/tmp/libpng-1.0.8 and still finds the newer libpng in /usr 0x00000049 in ?? () (gdb) bt #0 0x00000049 in ?? () #1 0x00a33f49 in png_create_write_struct_2 () from /usr/lib/libpng.so.3 #2 0x00a35371 in png_create_write_struct () from /usr/lib/libpng.so.3 #3 0x00aa6d59 in gdImagePngCtx (im=0x8172318, outfile=0x81722ec) at gd_png.c:461 #4 0x0047ee80 in object.11 () from /usr/local/apache/current/libexec/libphp4.so #5 0x004838fa in object.11 () from /usr/local/apache/current/libexec/libphp4.so #6 0x005f8b07 in object.11 () from /usr/local/apache/current/libexec/libphp4.so #7 0x005e5dd4 in object.11 () from /usr/local/apache/current/libexec/libphp4.so #8 0x005aeca5 in object.11 () from /usr/local/apache/current/libexec/libphp4.so #9 0x005fde00 in object.11 () from /usr/local/apache/current/libexec/libphp4.so #10 0x005fed78 in object.11 () from /usr/local/apache/current/libexec/libphp4.so #11 0x005fee02 in object.11 () from /usr/local/apache/current/libexec/libphp4.so #12 0x08055fd9 in ap_invoke_handler () #13 0x0806bb4f in ap_some_auth_required () #14 0x0806bbba in ap_process_request () #15 0x08062756 in ap_child_terminate () #16 0x08062935 in ap_child_terminate () #17 0x08062ab6 in ap_child_terminate () #18 0x0806314d in ap_child_terminate () #19 0x080639cc in main () #20 0x0019b571 in __libc_start_main () from /lib/libc.so.6 ------------------------------------------------------------------------ The remainder of the comments for this report are too long. 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