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glen@wintersunset ~/tmp/xdebug $ gdb --args php p.php
GNU gdb 6.5
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "amd64-pld-linux"...(no debugging symbols found)
Using host libthread_db library "/lib64/tls/libthread_db.so.1".
(gdb) run
Starting program: /usr/bin/php p.php
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 47130666539776 (LWP 26518)]
[New Thread 1090767200 (LWP 26521)]
[Thread 1090767200 (zombie) exited]
PHP Lint: p.php
PHP Lint: t-1.php
PHP Lint: t-2.php
PHP Lint: t-3.php
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47130666539776 (LWP 26518)]
0x00002add76dc1cd7 in xdebug_init_oparray (op_array=0xca5b48) at /home/glen/rpm/pld/BUILD/php-pecl-xdebug-2.0.3/xdebug.c:3134
3134 op_array->reserved[XG(reserved_offset)] = 0;
(gdb) bt
#0 0x00002add76dc1cd7 in xdebug_init_oparray (op_array=0xca5b48) at /home/glen/rpm/pld/BUILD/php-pecl-xdebug-2.0.3/xdebug.c:3134
#1 0x00002add7569ac17 in zend_llist_get_prev_ex () from /usr/lib64/libphp_common-5.2.6.so
0000002 0x00002add7569aa7d in zend_llist_apply_with_argument () from /usr/lib64/libphp_common-5.2.6.so
0000003 0x00002add7569adec in init_op_array () from /usr/lib64/libphp_common-5.2.6.so
0000004 0x00002add75682041 in compile_file () from /usr/lib64/libphp_common-5.2.6.so
0000005 0x00002add76dbf47a in xdebug_compile_file (file_handle=0x7fff356a8690, type=2, tsrm_ls=0xc14110)
at /home/glen/rpm/pld/BUILD/php-pecl-xdebug-2.0.3/xdebug.c:2379
0000006 0x00002add75682217 in compile_filename () from /usr/lib64/libphp_common-5.2.6.so
0000007 0x00002add7c26edff in php_runkit_shutdown_sandbox () from /usr/lib64/php/runkit.so
0000008 0x00002add7c26ef50 in zif_runkit_lint_file () from /usr/lib64/php/runkit.so
0000009 0x00002add756c1d3b in execute_internal () from /usr/lib64/libphp_common-5.2.6.so
0000010 0x00002add76dbc9b2 in xdebug_execute_internal (current_execute_data=0x7fff356a8b50, return_value_used=1, tsrm_ls=0x508090)
at /home/glen/rpm/pld/BUILD/php-pecl-xdebug-2.0.3/xdebug.c:1605
0000011 0x00002add756c27e6 in execute () from /usr/lib64/libphp_common-5.2.6.so
0000012 0x00002add756c1e9f in execute () from /usr/lib64/libphp_common-5.2.6.so
0000013 0x00002add76dbc3d9 in xdebug_execute (op_array=0x2aaaaacf73f0, tsrm_ls=0x508090) at /home/glen/rpm/pld/BUILD/php-pecl-xdebug-2.0.3/xdebug.c:1541
0000014 0x00002add756a45b9 in zend_execute_scripts () from /usr/lib64/libphp_common-5.2.6.so
0000015 0x00002add75660ee3 in php_execute_script () from /usr/lib64/libphp_common-5.2.6.so
0000016 0x0000000000404432 in main ()
(gdb) p op_array
$1 = (zend_op_array ) 0xca5b48
(gdb) p op_array
$2 = {type = 2 '\002', function_name = 0x0, scope = 0x0, fn_flags = 0, prototype = 0x0, num_args = 0, required_num_args = 0, arg_info = 0x0,
pass_rest_by_reference = 128 '\200', return_reference = 0 '\0', refcount = 0xca6000, opcodes = 0xca6020, last = 0, size = 64, vars = 0x0, last_var = 0,
size_var = 0, T = 0, brk_cont_array = 0x0, last_brk_cont = 0, current_brk_cont = 4294967295, try_catch_array = 0x0, last_try_catch = 0,
static_variables = 0x0, start_op = 0x0, backpatch_count = 0, done_pass_two = 0 '\0', uses_this = 0 '\0',
filename = 0xca5f58 "/home/glen/tmp/xdebug/t-3.php", line_start = 13264016, line_end = 0, doc_comment = 0x0, doc_comment_len = 0, reserved = {0x0, 0x0,
0x0, 0x0}}
here's my attempt to unexpand XG(reserved_offset) :
(gdb) p (((zend_xdebug_globals ) (((void ***) tsrm_ls))[(xdebug_globals_id)-1])->reserved_offset)
$6 = -317778743
as :
#define XG(v) TSRMG(xdebug_globals_id, zend_xdebug_globals , v)
#define TSRMG(id, type, element) (((type) (((void ***) tsrm_ls))[TSRM_UNSHUFFLE_RSRC_ID(id)])->element)
#define TSRM_UNSHUFFLE_RSRC_ID(rsrc_id) ((rsrc_id)-1) |
