1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2018 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> |
+----------------------------------------------------------------------+
*/
#ifndef PHPDBG_WATCH_H
#define PHPDBG_WATCH_H
#include "phpdbg_cmd.h"
#ifdef _WIN32
# include "phpdbg_win.h"
#endif
#define PHPDBG_WATCH(name) PHPDBG_COMMAND(watch_##name)
/**
* Printer Forward Declarations
*/
PHPDBG_WATCH(array);
PHPDBG_WATCH(delete);
PHPDBG_WATCH(recursive);
extern const phpdbg_command_t phpdbg_watch_commands[];
/* Watchpoint functions/typedefs */
/* References are managed through their parent zval *, being a simple WATCH_ON_ZVAL and eventually WATCH_ON_REFCOUNTED */
typedef enum {
WATCH_ON_ZVAL,
WATCH_ON_HASHTABLE,
WATCH_ON_REFCOUNTED,
WATCH_ON_STR,
WATCH_ON_HASHDATA,
WATCH_ON_BUCKET,
} phpdbg_watchtype;
#define PHPDBG_WATCH_SIMPLE 0x01
#define PHPDBG_WATCH_RECURSIVE 0x02
#define PHPDBG_WATCH_ARRAY 0x04
#define PHPDBG_WATCH_OBJECT 0x08
#define PHPDBG_WATCH_NORMAL (PHPDBG_WATCH_SIMPLE | PHPDBG_WATCH_RECURSIVE)
#define PHPDBG_WATCH_IMPLICIT 0x10
#define PHPDBG_WATCH_RECURSIVE_ROOT 0x20
typedef struct _phpdbg_watch_collision phpdbg_watch_collision;
typedef struct _phpdbg_watchpoint_t {
union {
zval *zv;
zend_refcounted *ref;
Bucket *bucket;
void *ptr;
} addr;
size_t size;
phpdbg_watchtype type;
zend_refcounted *ref; /* key to fetch the collision on parents */
HashTable elements;
phpdbg_watch_collision *coll; /* only present on *children* */
union {
zval zv;
Bucket bucket;
zend_refcounted ref;
HashTable ht;
zend_string *str;
} backup;
} phpdbg_watchpoint_t;
struct _phpdbg_watch_collision {
phpdbg_watchpoint_t ref;
phpdbg_watchpoint_t reference;
HashTable parents;
};
typedef struct _phpdbg_watch_element {
uint32_t id;
phpdbg_watchpoint_t *watch;
char flags;
struct _phpdbg_watch_element *child; /* always set for implicit watches */
struct _phpdbg_watch_element *parent;
HashTable child_container; /* children of this watch element for recursive array elements */
HashTable *parent_container; /* container of the value */
zend_string *name_in_parent;
zend_string *str;
union {
zval zv;
zend_refcounted ref;
HashTable ht;
} backup; /* backup for when watchpoint gets dissociated */
} phpdbg_watch_element;
typedef struct {
/* to watch rehashes (yes, this is not *perfect*, but good enough for everything in PHP...) */
phpdbg_watchpoint_t hash_watch; /* must be first element */
Bucket *last;
zend_string *last_str;
zend_ulong last_idx;
HashTable *ht;
size_t data_size;
HashTable watches; /* contains phpdbg_watch_element */
} phpdbg_watch_ht_info;
void phpdbg_setup_watchpoints(void);
void phpdbg_destroy_watchpoints(void);
#ifndef _WIN32
int phpdbg_watchpoint_segfault_handler(siginfo_t *info, void *context);
#else
int phpdbg_watchpoint_segfault_handler(void *addr);
#endif
void phpdbg_create_addr_watchpoint(void *addr, size_t size, phpdbg_watchpoint_t *watch);
void phpdbg_create_zval_watchpoint(zval *zv, phpdbg_watchpoint_t *watch);
int phpdbg_delete_var_watchpoint(char *input, size_t len);
int phpdbg_create_var_watchpoint(char *input, size_t len);
int phpdbg_print_changed_zvals(void);
void phpdbg_list_watchpoints(void);
void phpdbg_watch_efree(void *ptr);
static long phpdbg_pagesize;
static zend_always_inline void *phpdbg_get_page_boundary(void *addr) {
return (void *) ((size_t) addr & ~(phpdbg_pagesize - 1));
}
static zend_always_inline size_t phpdbg_get_total_page_size(void *addr, size_t size) {
return (size_t) phpdbg_get_page_boundary((void *) ((size_t) addr + size - 1)) - (size_t) phpdbg_get_page_boundary(addr) + phpdbg_pagesize;
}
#endif
|
