Re: Unable to load DSO's when using embed sapi module

Thanks for the guess. But when one of these parameters is wrong, PHP engine specifically says so. My configuratin options for php build are --with-apxs2=/usr/local/apache2/bin/apxs --enable-embed=static --with-zlib --enable-debug. I use phpize with the extension. So, this automatically makes the version, debug info, zts settings info of the extension exactly similar to those of PHP. I have listed the gdb trace for successful and unsuccessful cases. I'd appreciate if someone can point what the root cause for this issue. =========================================================================== When I run a php file through CLI the gdb trace I get is listed below. It successfully loads the axis2.so Breakpoint 1, php_ini_register_extensions () at /usr/app/php-5.1.4/main/php_ini.c:552

552             zend_llist_apply(&extension_lists.engine, php_load_zend_extension_cb TSRMLS_CC);

(gdb) n

553             zend_llist_apply(&extension_lists.functions, php_load_function_extension_cb TSRMLS_CC);

(gdb) s zend_llist_apply (l=0x837ab9c, func=0x820e5d1 <php_load_function_extension_cb>) at /usr/app/php-5.1.4/Zend/zend_llist.c:190

190             for (element=l->head; element; element=element->next) {

(gdb) n

191                     func(element->data TSRMLS_CC);

(gdb) s php_load_function_extension_cb (arg=0x97a7650) at /usr/app/php-5.1.4/main/php_ini.c:232

232             zval *extension = (zval *) arg;

(gdb) n

235             php_dl(extension, MODULE_PERSISTENT, &zval, 0 TSRMLS_CC);

(gdb) p *extension $4 = {value = {lval = 159003284, dval = 1.7054524387922518e-313, str = {val = 0x97a3294 "axis2.so", len = 8}, ht = 0x97a3294, obj = {handle = 159003284, handlers = 0x8}}, refcount = 0, type = 6 '\006', is_ref = 243 ' (gdb) n

236     }

(gdb) n zend_llist_apply (l=0x837ab9c, func=0x820e5d1 <php_load_function_extension_cb>) at /usr/app/php-5.1.4/Zend/zend_llist.c:190

190             for (element=l->head; element; element=element->next) {

(gdb)

193     }

(gdb) php_ini_register_extensions () at /usr/app/php-5.1.4/main/php_ini.c:555

555             zend_llist_destroy(&extension_lists.engine);

(gdb) ================================================================================= When I use the embed sapi, it fails without being able to load axis2.so (please see the gdb trace below) Breakpoint 1, php_ini_register_extensions () at /usr/app/php-5.1.4/main/php_ini.c:552

552             zend_llist_apply(&extension_lists.engine, php_load_zend_extension_cb TSRMLS_CC);

(gdb) n

553             zend_llist_apply(&extension_lists.functions, php_load_function_extension_cb TSRMLS_CC);

(gdb) s zend_llist_apply (l=0x8344f5c, func=0x80d6f2d <php_load_function_extension_cb>) at /usr/app/php-5.1.4/Zend/zend_llist.c:190

190             for (element=l->head; element; element=element->next) {

(gdb) n

191                     func(element->data TSRMLS_CC);

(gdb) s php_load_function_extension_cb (arg=0x920e580) at /usr/app/php-5.1.4/main/php_ini.c:232

232             zval *extension = (zval *) arg;

(gdb) n

235             php_dl(extension, MODULE_PERSISTENT, &zval, 0 TSRMLS_CC);

(gdb) p *extension $3 = {value = {lval = 153133716, dval = 1.7051624436017789e-313, str = {val = 0x920a294 "axis2.so", len = 8}, ht = 0x920a294, obj = {handle = 153133716, handlers = 0x8}}, refcount = 0, type = 6 '\006', is_ref = 61 '='} (gdb) s php_dl (file=0x920e580, type=1, return_value=0xbf943d74, start_now=0) at /usr/app/php-5.1.4/ext/standard/dl.c:113

113             if (type == MODULE_PERSISTENT) {

(gdb) n

114                     extension_dir = INI_STR("extension_dir");

(gdb)

119             if (type == MODULE_TEMPORARY) {

(gdb)

122                     error_type = E_CORE_WARNING;

(gdb)

125             if (extension_dir && extension_dir[0]){

(gdb)

126                     int extension_dir_len = strlen(extension_dir);

(gdb)

128                     libpath = emalloc(extension_dir_len+Z_STRLEN_P(file)+2);

(gdb)

130                     if (IS_SLASH(extension_dir[extension_dir_len-1])) {

(gdb)

133                             sprintf(libpath, "%s%c%s", extension_dir, DEFAULT_SLASH, Z_STRVAL_P(file)); /* SAFE */

(gdb)

125             if (extension_dir && extension_dir[0]){

(gdb) p libpath $4 = 0x923bd04 "/usr/local/lib/php/ext/axis2.so" (gdb) n

140             handle = DL_LOAD(libpath);

(gdb) s

141             if (!handle) {

(gdb) n

142                     php_error_docref(NULL TSRMLS_CC, error_type, "Unable to load dynamic library '%s' - %s", libpath, GET_DL_ERROR());

thanks, -Nabeel Richard Lynch wrote:

Wild Guess: You maybe have different versions and/or different debug/zts settings on the binaries, and need to re-compile the other files in parallel... On Wed, May 24, 2006 4:58 am, Nabeel wrote:

Hi, I want to call PHP code from C. So, I compiled sapi/embed module with my PHP 5.1.4 source (--enable-embed=static). It works fine when I access standard PHP functions. When any .so file (e.g.: axis2.so) is dynamically loaded to PHP, it gives the following error when I run my test C code. (this happens with other DSO's as well.) PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/ext/axis2.so' - /usr/local/lib/php/ext/axis2.so: undefined symbol: _zval_ptr_dtor in Unknown on line 0 axis2.so works fine thourgh cli and apache interfaces. I wonder whether I am missing something. Any help is greatly appreciated. Thanks, -Nabeel -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php