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|
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Felipe Pena <felipe@php.net> |
| Authors: Joe Watkins <joe.watkins@live.co.uk> |
| Authors: Bob Weinand <bwoebi@php.net> |
+----------------------------------------------------------------------+
*/
#include "zend.h"
#include "phpdbg.h"
#include "phpdbg_utils.h"
#include "phpdbg_frame.h"
#include "phpdbg_list.h"
ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
void phpdbg_restore_frame(TSRMLS_D) /* {{{ */
{
if (PHPDBG_FRAME(num) == 0) {
return;
}
PHPDBG_FRAME(num) = 0;
/* move things back */
EG(current_execute_data) = PHPDBG_FRAME(execute_data);
EG(opline_ptr) = &PHPDBG_EX(opline);
EG(active_op_array) = PHPDBG_EX(op_array);
EG(active_symbol_table) = PHPDBG_EX(symbol_table);
//!!!EG(This) = PHPDBG_EX(current_this);
//!!!EG(scope) = PHPDBG_EX(current_scope);
//!!!EG(called_scope) = PHPDBG_EX(current_called_scope);
} /* }}} */
void phpdbg_switch_frame(int frame TSRMLS_DC) /* {{{ */
{
zend_execute_data *execute_data = PHPDBG_FRAME(num)?PHPDBG_FRAME(execute_data):EG(current_execute_data);
int i = 0;
if (PHPDBG_FRAME(num) == frame) {
phpdbg_notice("Already in frame #%d", frame);
return;
}
while (execute_data) {
if (i++ == frame) {
break;
}
do {
execute_data = execute_data->prev_execute_data;
} while (execute_data && execute_data->opline == NULL);
}
if (execute_data == NULL) {
phpdbg_error("No frame #%d", frame);
return;
}
phpdbg_restore_frame(TSRMLS_C);
if (frame > 0) {
PHPDBG_FRAME(num) = frame;
/* backup things and jump back */
PHPDBG_FRAME(execute_data) = EG(current_execute_data);
EG(current_execute_data) = execute_data;
EG(opline_ptr) = &PHPDBG_EX(opline);
EG(active_op_array) = PHPDBG_EX(op_array);
EG(active_symbol_table) = PHPDBG_EX(symbol_table);
//!!!EG(This) = PHPDBG_EX(current_this);
//!!!EG(scope) = PHPDBG_EX(current_scope);
//!!!EG(called_scope) = PHPDBG_EX(current_called_scope);
}
phpdbg_notice("Switched to frame #%d", frame);
phpdbg_list_file(
zend_get_executed_filename(TSRMLS_C),
3,
zend_get_executed_lineno(TSRMLS_C)-1,
zend_get_executed_lineno(TSRMLS_C)
TSRMLS_CC
);
} /* }}} */
static void phpdbg_dump_prototype(zval *tmp TSRMLS_DC) /* {{{ */
{
zval *funcname, *class, *type, *args, *argstmp;
zend_string *class_name;
funcname = zend_hash_str_find(Z_ARRVAL_P(tmp), "function", sizeof("function") - 1);
if ((class = zend_hash_str_find(Z_ARRVAL_P(tmp), "object", sizeof("object") - 1)) == NULL) {
class = zend_hash_str_find(Z_ARRVAL_P(tmp), "class", sizeof("class") - 1);
} else {
class_name = zend_get_object_classname(class TSRMLS_CC);
}
if (class) {
type = zend_hash_str_find(Z_ARRVAL_P(tmp), "type", sizeof("type") - 1);
}
phpdbg_write("%s%s%s(",
class == NULL?"":Z_STRVAL_P(class),
class == NULL?"":Z_STRVAL_P(type),
Z_STRVAL_P(funcname));
if ((args = zend_hash_str_find(Z_ARRVAL_P(tmp), "args", sizeof("args") - 1)) != NULL) {
HashPosition iterator;
const zend_function *func = phpdbg_get_function(
Z_STRVAL_P(funcname), class == NULL ? NULL : Z_STRVAL_P(class) TSRMLS_CC);
const zend_arg_info *arginfo = func ? func->common.arg_info : NULL;
int j = 0, m = func ? func->common.num_args : 0;
zend_bool is_variadic = 0;
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(args), &iterator);
while ((argstmp = zend_hash_get_current_data_ex(Z_ARRVAL_P(args), &iterator)) != NULL) {
if (j) {
phpdbg_write(", ");
}
if (m && j < m) {
#if PHP_VERSION_ID >= 50600
is_variadic = arginfo[j].is_variadic;
#endif
phpdbg_write("%s=%s",
arginfo[j].name, is_variadic ? "[": "");
}
++j;
zend_print_flat_zval_r(argstmp TSRMLS_CC);
zend_hash_move_forward_ex(Z_ARRVAL_P(args), &iterator);
}
if (is_variadic) {
phpdbg_write("]");
}
}
phpdbg_write(")");
}
/* }}} */
void phpdbg_dump_backtrace(size_t num TSRMLS_DC) /* {{{ */
{
zval zbacktrace;
zval *tmp;
zval *file, *line;
HashPosition position;
int i = 1, limit = num;
if (limit < 0) {
phpdbg_error("Invalid backtrace size %d", limit);
}
zend_fetch_debug_backtrace(
&zbacktrace, 0, 0, limit TSRMLS_CC);
zend_hash_internal_pointer_reset_ex(Z_ARRVAL(zbacktrace), &position);
tmp = zend_hash_get_current_data_ex(Z_ARRVAL(zbacktrace), &position);
while (1) {
file = zend_hash_str_find(Z_ARRVAL_P(tmp), "file", sizeof("file") - 1);
line = zend_hash_str_find(Z_ARRVAL_P(tmp), "line", sizeof("line") - 1);
zend_hash_move_forward_ex(Z_ARRVAL(zbacktrace), &position);
if ((tmp = zend_hash_get_current_data_ex(Z_ARRVAL(zbacktrace), &position)) == NULL) {
phpdbg_write("frame #0: {main} at %s:%ld", Z_STRVAL_P(file), Z_LVAL_P(line));
break;
}
if (file) {
phpdbg_write("frame #%d: ", i++);
phpdbg_dump_prototype(tmp TSRMLS_CC);
phpdbg_writeln(" at %s:%ld", Z_STRVAL_P(file), Z_LVAL_P(line));
} else {
phpdbg_write(" => ");
phpdbg_dump_prototype(tmp TSRMLS_CC);
phpdbg_writeln(" (internal function)");
}
}
phpdbg_writeln(EMPTY);
zval_ptr_dtor(&zbacktrace);
} /* }}} */
|
