mirror of
https://github.com/php/php-src.git
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100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2013 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Felipe Pena <felipe@php.net> |
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| Authors: Joe Watkins <joe.watkins@live.co.uk> |
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| Authors: Bob Weinand <bwoebi@php.net> |
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+----------------------------------------------------------------------+
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*/
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#include "phpdbg.h"
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#include "phpdbg_frame.h"
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#include "phpdbg_list.h"
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#include "phpdbg_utils.h"
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ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
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#define PHPDBG_FRAME(v) (PHPDBG_G(frame).v)
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#define PHPDBG_EX(v) (EG(current_execute_data)->v)
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void switch_to_frame(int frame) {
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zend_execute_data *execute_data = PHPDBG_FRAME(num)?PHPDBG_FRAME(execute_data):EG(current_execute_data);
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int i = 0;
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if (PHPDBG_FRAME(num) == frame) {
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phpdbg_notice("Already in frame #%d", frame);
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return;
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}
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while (execute_data) {
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if (i++ == frame) {
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break;
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}
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do {
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execute_data = execute_data->prev_execute_data;
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} while (execute_data && execute_data->opline == NULL);
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}
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if (execute_data == NULL) {
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phpdbg_error("No frame #%d", frame);
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return;
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}
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restore_frame();
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if (frame > 0) {
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PHPDBG_FRAME(num) = frame;
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/* backup things and jump back */
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PHPDBG_FRAME(execute_data) = EG(current_execute_data);
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EG(current_execute_data) = execute_data;
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EG(opline_ptr) = &PHPDBG_EX(opline);
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EG(active_op_array) = PHPDBG_EX(op_array);
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EG(return_value_ptr_ptr) = PHPDBG_EX(original_return_value);
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EG(active_symbol_table) = PHPDBG_EX(symbol_table);
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EG(This) = PHPDBG_EX(current_this);
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EG(scope) = PHPDBG_EX(current_scope);
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EG(called_scope) = PHPDBG_EX(current_called_scope);
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}
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phpdbg_notice("Switched to frame #%d", frame);
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phpdbg_list_file(
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zend_get_executed_filename(TSRMLS_C),
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3,
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zend_get_executed_lineno(TSRMLS_C)-1,
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zend_get_executed_lineno(TSRMLS_C)
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TSRMLS_CC
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);
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}
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void restore_frame() {
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if (PHPDBG_FRAME(num) == 0) {
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return;
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}
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PHPDBG_FRAME(num) = 0;
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/* move things back */
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EG(current_execute_data) = PHPDBG_FRAME(execute_data);
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EG(opline_ptr) = &PHPDBG_EX(opline);
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EG(active_op_array) = PHPDBG_EX(op_array);
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EG(return_value_ptr_ptr) = PHPDBG_EX(original_return_value);
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EG(active_symbol_table) = PHPDBG_EX(symbol_table);
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EG(This) = PHPDBG_EX(current_this);
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EG(scope) = PHPDBG_EX(current_scope);
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EG(called_scope) = PHPDBG_EX(current_called_scope);
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}
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