1 /*
2 +----------------------------------------------------------------------+
3 | Zend OPcache |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1998-2016 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Andi Gutmans <andi@zend.com> |
16 | Zeev Suraski <zeev@zend.com> |
17 | Stanislav Malyshev <stas@zend.com> |
18 | Dmitry Stogov <dmitry@zend.com> |
19 +----------------------------------------------------------------------+
20 */
21
22 #include "zend.h"
23 #include "ZendAccelerator.h"
24 #include "zend_persist.h"
25 #include "zend_extensions.h"
26 #include "zend_shared_alloc.h"
27 #include "zend_operators.h"
28
29 #define START_SIZE() uint memory_used = 0
30 #define ADD_DUP_SIZE(m,s) memory_used += zend_shared_memdup_size((void*)m, s)
31 #define ADD_SIZE(m) memory_used += ZEND_ALIGNED_SIZE(m)
32 #define RETURN_SIZE() return memory_used
33
34 #if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
35 # define ADD_INTERNED_STRING(str, len) do { \
36 if (!IS_INTERNED(str)) { \
37 const char *tmp = accel_new_interned_string((str), (len), 1 TSRMLS_CC); \
38 if (tmp != (str)) { \
39 (str) = (char*)tmp; \
40 } else { \
41 ADD_DUP_SIZE((str), (len)); \
42 } \
43 } \
44 } while (0)
45 #else
46 # define ADD_INTERNED_STRING(str, len) ADD_DUP_SIZE((str), (len))
47 #endif
48
49 static uint zend_persist_zval_ptr_calc(zval **zp TSRMLS_DC);
50 static uint zend_persist_zval_calc(zval *z TSRMLS_DC);
51
zend_hash_persist_calc(HashTable * ht,int (* pPersistElement)(void * pElement TSRMLS_DC),size_t el_size TSRMLS_DC)52 static uint zend_hash_persist_calc(HashTable *ht, int (*pPersistElement)(void *pElement TSRMLS_DC), size_t el_size TSRMLS_DC)
53 {
54 Bucket *p = ht->pListHead;
55 START_SIZE();
56
57 while (p) {
58 /* persist bucket and key */
59 #if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
60 ADD_DUP_SIZE(p, sizeof(Bucket));
61 if (p->nKeyLength) {
62 const char *tmp = accel_new_interned_string(p->arKey, p->nKeyLength, 0 TSRMLS_CC);
63 if (tmp != p->arKey) {
64 p->arKey = tmp;
65 } else {
66 ADD_DUP_SIZE(p->arKey, p->nKeyLength);
67 }
68 }
69 #else
70 ADD_DUP_SIZE(p, sizeof(Bucket) - 1 + p->nKeyLength);
71 #endif
72
73 /* persist data pointer in bucket */
74 if (!p->pDataPtr) {
75 ADD_DUP_SIZE(p->pData, el_size);
76 }
77
78 /* persist the data itself */
79 if (pPersistElement) {
80 ADD_SIZE(pPersistElement(p->pData TSRMLS_CC));
81 }
82
83 p = p->pListNext;
84 }
85
86 #if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
87 if (ht->nTableMask) {
88 ADD_DUP_SIZE(ht->arBuckets, sizeof(Bucket*) * ht->nTableSize);
89 }
90 #else
91 ADD_DUP_SIZE(ht->arBuckets, sizeof(Bucket*) * ht->nTableSize);
92 #endif
93
94 RETURN_SIZE();
95 }
96
97 #if ZEND_EXTENSION_API_NO > PHP_5_5_X_API_NO
zend_persist_ast_calc(zend_ast * ast TSRMLS_DC)98 static uint zend_persist_ast_calc(zend_ast *ast TSRMLS_DC)
99 {
100 int i;
101 START_SIZE();
102
103 if (ast->kind == ZEND_CONST) {
104 ADD_SIZE(sizeof(zend_ast) + sizeof(zval));
105 ADD_SIZE(zend_persist_zval_calc(ast->u.val TSRMLS_CC));
106 } else {
107 ADD_SIZE(sizeof(zend_ast) + sizeof(zend_ast*) * (ast->children - 1));
108 for (i = 0; i < ast->children; i++) {
109 if ((&ast->u.child)[i]) {
110 ADD_SIZE(zend_persist_ast_calc((&ast->u.child)[i] TSRMLS_CC));
111 }
112 }
113 }
114 RETURN_SIZE();
115 }
116 #endif
117
zend_persist_zval_calc(zval * z TSRMLS_DC)118 static uint zend_persist_zval_calc(zval *z TSRMLS_DC)
119 {
120 START_SIZE();
121
122 #if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
123 switch (z->type & IS_CONSTANT_TYPE_MASK) {
124 #else
125 switch (z->type & ~IS_CONSTANT_INDEX) {
126 #endif
127 case IS_STRING:
128 case IS_CONSTANT:
129 ADD_INTERNED_STRING(Z_STRVAL_P(z), Z_STRLEN_P(z) + 1);
130 break;
131 case IS_ARRAY:
132 #if ZEND_EXTENSION_API_NO <= PHP_5_5_API_NO
133 case IS_CONSTANT_ARRAY:
134 #endif
135 ADD_DUP_SIZE(z->value.ht, sizeof(HashTable));
136 ADD_SIZE(zend_hash_persist_calc(z->value.ht, (int (*)(void* TSRMLS_DC)) zend_persist_zval_ptr_calc, sizeof(zval**) TSRMLS_CC));
137 break;
138 #if ZEND_EXTENSION_API_NO > PHP_5_5_X_API_NO
139 case IS_CONSTANT_AST:
140 ADD_SIZE(zend_persist_ast_calc(Z_AST_P(z) TSRMLS_CC));
141 break;
142 #endif
143 }
144 RETURN_SIZE();
145 }
146
147 static uint zend_persist_zval_ptr_calc(zval **zp TSRMLS_DC)
148 {
149 START_SIZE();
150 zval *new_ptr = zend_shared_alloc_get_xlat_entry(*zp);
151
152 if (!new_ptr) {
153 ADD_DUP_SIZE(*zp, sizeof(zval));
154 ADD_SIZE(zend_persist_zval_calc(*zp TSRMLS_CC));
155 }
156 RETURN_SIZE();
157 }
158
159 static uint zend_persist_op_array_calc(zend_op_array *op_array TSRMLS_DC)
160 {
161 START_SIZE();
162
163 if (op_array->type != ZEND_USER_FUNCTION) {
164 return 0;
165 }
166
167 if (op_array->filename) {
168 ADD_DUP_SIZE(op_array->filename, strlen(op_array->filename) + 1);
169 }
170
171 #if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
172 if (op_array->literals && !zend_shared_alloc_get_xlat_entry(op_array->literals)) {
173 zend_literal *p = op_array->literals;
174 zend_literal *end = p + op_array->last_literal;
175 ADD_DUP_SIZE(op_array->literals, sizeof(zend_literal) * op_array->last_literal);
176 while (p < end) {
177 ADD_SIZE(zend_persist_zval_calc(&p->constant TSRMLS_CC));
178 p++;
179 }
180 }
181 #endif
182
183 if (!zend_shared_alloc_get_xlat_entry(op_array->opcodes)) {
184 #if ZEND_EXTENSION_API_NO <= PHP_5_3_X_API_NO
185 zend_op *opline = op_array->opcodes;
186 zend_op *end = op_array->opcodes + op_array->last;
187
188 ADD_DUP_SIZE(op_array->opcodes, sizeof(zend_op) * op_array->last);
189 while (opline<end) {
190 if (opline->op1.op_type == IS_CONST) {
191 ADD_SIZE(zend_persist_zval_calc(&opline->op1.u.constant TSRMLS_CC));
192 }
193 if (opline->op2.op_type == IS_CONST) {
194 ADD_SIZE(zend_persist_zval_calc(&opline->op2.u.constant TSRMLS_CC));
195 }
196 opline++;
197 }
198 #else
199 ADD_DUP_SIZE(op_array->opcodes, sizeof(zend_op) * op_array->last);
200 #endif
201 }
202
203 if (op_array->function_name) {
204 ADD_DUP_SIZE(op_array->function_name, strlen(op_array->function_name) + 1);
205 }
206
207 if (op_array->arg_info &&
208 !zend_shared_alloc_get_xlat_entry(op_array->arg_info)) {
209 zend_uint i;
210
211 ADD_DUP_SIZE(op_array->arg_info, sizeof(zend_arg_info) * op_array->num_args);
212 for (i = 0; i < op_array->num_args; i++) {
213 if (op_array->arg_info[i].name) {
214 ADD_INTERNED_STRING(op_array->arg_info[i].name, op_array->arg_info[i].name_len + 1);
215 }
216 if (op_array->arg_info[i].class_name) {
217 ADD_INTERNED_STRING(op_array->arg_info[i].class_name, op_array->arg_info[i].class_name_len + 1);
218 }
219
220 }
221 }
222
223 if (op_array->brk_cont_array) {
224 ADD_DUP_SIZE(op_array->brk_cont_array, sizeof(zend_brk_cont_element) * op_array->last_brk_cont);
225 }
226
227 if (op_array->static_variables) {
228 ADD_DUP_SIZE(op_array->static_variables, sizeof(HashTable));
229 ADD_SIZE(zend_hash_persist_calc(op_array->static_variables, (int (*)(void* TSRMLS_DC)) zend_persist_zval_ptr_calc, sizeof(zval**) TSRMLS_CC));
230 }
231
232 if (ZCG(accel_directives).save_comments && op_array->doc_comment) {
233 ADD_DUP_SIZE(op_array->doc_comment, op_array->doc_comment_len + 1);
234 }
235
236 if (op_array->try_catch_array) {
237 ADD_DUP_SIZE(op_array->try_catch_array, sizeof(zend_try_catch_element) * op_array->last_try_catch);
238 }
239
240 if (op_array->vars && !zend_shared_alloc_get_xlat_entry(op_array->vars)) {
241 int i;
242
243 ADD_DUP_SIZE(op_array->vars, sizeof(zend_compiled_variable) * op_array->last_var);
244 for (i = 0; i < op_array->last_var; i++) {
245 ADD_INTERNED_STRING(op_array->vars[i].name, op_array->vars[i].name_len + 1);
246 }
247 }
248
249 RETURN_SIZE();
250 }
251
252 static uint zend_persist_property_info_calc(zend_property_info *prop TSRMLS_DC)
253 {
254 START_SIZE();
255 ADD_INTERNED_STRING(prop->name, prop->name_length + 1);
256 if (ZCG(accel_directives).save_comments && prop->doc_comment) {
257 ADD_DUP_SIZE(prop->doc_comment, prop->doc_comment_len + 1);
258 }
259 RETURN_SIZE();
260 }
261
262 static uint zend_persist_class_entry_calc(zend_class_entry **pce TSRMLS_DC)
263 {
264 zend_class_entry *ce = *pce;
265 START_SIZE();
266
267 if (ce->type == ZEND_USER_CLASS) {
268 ADD_DUP_SIZE(ce, sizeof(zend_class_entry));
269 ADD_INTERNED_STRING(ce->name, ce->name_length + 1);
270 ADD_SIZE(zend_hash_persist_calc(&ce->function_table, (int (*)(void* TSRMLS_DC)) zend_persist_op_array_calc, sizeof(zend_op_array) TSRMLS_CC));
271 #if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
272 if (ce->default_properties_table) {
273 int i;
274
275 ADD_SIZE(sizeof(zval*) * ce->default_properties_count);
276 for (i = 0; i < ce->default_properties_count; i++) {
277 if (ce->default_properties_table[i]) {
278 ADD_SIZE(zend_persist_zval_ptr_calc(&ce->default_properties_table[i] TSRMLS_CC));
279 }
280 }
281 }
282 if (ce->default_static_members_table) {
283 int i;
284
285 ADD_SIZE(sizeof(zval*) * ce->default_static_members_count);
286 for (i = 0; i < ce->default_static_members_count; i++) {
287 if (ce->default_static_members_table[i]) {
288 ADD_SIZE(zend_persist_zval_ptr_calc(&ce->default_static_members_table[i] TSRMLS_CC));
289 }
290 }
291 }
292 #else
293 ADD_SIZE(zend_hash_persist_calc(&ce->default_properties, (int (*)(void* TSRMLS_DC)) zend_persist_zval_ptr_calc, sizeof(zval**) TSRMLS_CC));
294 ADD_SIZE(zend_hash_persist_calc(&ce->default_static_members, (int (*)(void* TSRMLS_DC)) zend_persist_zval_ptr_calc, sizeof(zval**) TSRMLS_CC));
295 #endif
296 ADD_SIZE(zend_hash_persist_calc(&ce->constants_table, (int (*)(void* TSRMLS_DC)) zend_persist_zval_ptr_calc, sizeof(zval**) TSRMLS_CC));
297
298 if (ZEND_CE_FILENAME(ce)) {
299 ADD_DUP_SIZE(ZEND_CE_FILENAME(ce), strlen(ZEND_CE_FILENAME(ce)) + 1);
300 }
301 if (ZCG(accel_directives).save_comments && ZEND_CE_DOC_COMMENT(ce)) {
302 ADD_DUP_SIZE(ZEND_CE_DOC_COMMENT(ce), ZEND_CE_DOC_COMMENT_LEN(ce) + 1);
303 }
304
305 ADD_SIZE(zend_hash_persist_calc(&ce->properties_info, (int (*)(void* TSRMLS_DC)) zend_persist_property_info_calc, sizeof(zend_property_info) TSRMLS_CC));
306
307 #if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
308 if (ce->trait_aliases) {
309 int i = 0;
310 while (ce->trait_aliases[i]) {
311 if (ce->trait_aliases[i]->trait_method) {
312 if (ce->trait_aliases[i]->trait_method->method_name) {
313 ADD_SIZE(ce->trait_aliases[i]->trait_method->mname_len + 1);
314 }
315 if (ce->trait_aliases[i]->trait_method->class_name) {
316 ADD_SIZE(ce->trait_aliases[i]->trait_method->cname_len + 1);
317 }
318 ADD_SIZE(sizeof(zend_trait_method_reference));
319 }
320
321 if (ce->trait_aliases[i]->alias) {
322 ADD_SIZE(ce->trait_aliases[i]->alias_len + 1);
323 }
324 ADD_SIZE(sizeof(zend_trait_alias));
325 i++;
326 }
327 ADD_SIZE(sizeof(zend_trait_alias*) * (i + 1));
328 }
329
330 if (ce->trait_precedences) {
331 int i = 0;
332
333 while (ce->trait_precedences[i]) {
334 ADD_SIZE(ce->trait_precedences[i]->trait_method->mname_len + 1);
335 ADD_SIZE(ce->trait_precedences[i]->trait_method->cname_len + 1);
336 ADD_SIZE(sizeof(zend_trait_method_reference));
337
338 if (ce->trait_precedences[i]->exclude_from_classes) {
339 int j = 0;
340
341 while (ce->trait_precedences[i]->exclude_from_classes[j]) {
342 ADD_SIZE(strlen((char*)ce->trait_precedences[i]->exclude_from_classes[j]) + 1);
343 j++;
344 }
345 ADD_SIZE(sizeof(zend_class_entry*) * (j + 1));
346 }
347 ADD_SIZE(sizeof(zend_trait_precedence));
348 i++;
349 }
350 ADD_SIZE(sizeof(zend_trait_precedence*) * (i + 1));
351 }
352 #endif
353 }
354 RETURN_SIZE();
355 }
356
357 static uint zend_accel_persist_class_table_calc(HashTable *class_table TSRMLS_DC)
358 {
359 return zend_hash_persist_calc(class_table, (int (*)(void* TSRMLS_DC)) zend_persist_class_entry_calc, sizeof(zend_class_entry*) TSRMLS_CC);
360 }
361
362 uint zend_accel_script_persist_calc(zend_persistent_script *new_persistent_script, char *key, unsigned int key_length TSRMLS_DC)
363 {
364 START_SIZE();
365
366 ADD_SIZE(zend_hash_persist_calc(&new_persistent_script->function_table, (int (*)(void* TSRMLS_DC)) zend_persist_op_array_calc, sizeof(zend_op_array) TSRMLS_CC));
367 ADD_SIZE(zend_accel_persist_class_table_calc(&new_persistent_script->class_table TSRMLS_CC));
368 ADD_SIZE(zend_persist_op_array_calc(&new_persistent_script->main_op_array TSRMLS_CC));
369 ADD_DUP_SIZE(key, key_length + 1);
370 ADD_DUP_SIZE(new_persistent_script->full_path, new_persistent_script->full_path_len + 1);
371 ADD_DUP_SIZE(new_persistent_script, sizeof(zend_persistent_script));
372
373 RETURN_SIZE();
374 }
375
