1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt. |
11 | If you did not receive a copy of the Zend license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@zend.com so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Andi Gutmans <andi@php.net> |
16 | Zeev Suraski <zeev@php.net> |
17 +----------------------------------------------------------------------+
18 */
19
20 #include "zend.h"
21 #include "zend_extensions.h"
22 #include "zend_modules.h"
23 #include "zend_constants.h"
24 #include "zend_list.h"
25 #include "zend_API.h"
26 #include "zend_exceptions.h"
27 #include "zend_builtin_functions.h"
28 #include "zend_ini.h"
29 #include "zend_vm.h"
30 #include "zend_dtrace.h"
31 #include "zend_virtual_cwd.h"
32 #include "zend_smart_str.h"
33 #include "zend_smart_string.h"
34 #include "zend_cpuinfo.h"
35
36 static size_t global_map_ptr_last = 0;
37
38 #ifdef ZTS
39 ZEND_API int compiler_globals_id;
40 ZEND_API int executor_globals_id;
41 ZEND_API size_t compiler_globals_offset;
42 ZEND_API size_t executor_globals_offset;
43 static HashTable *global_function_table = NULL;
44 static HashTable *global_class_table = NULL;
45 static HashTable *global_constants_table = NULL;
46 static HashTable *global_auto_globals_table = NULL;
47 static HashTable *global_persistent_list = NULL;
48 ZEND_TSRMLS_CACHE_DEFINE()
49 # define GLOBAL_FUNCTION_TABLE global_function_table
50 # define GLOBAL_CLASS_TABLE global_class_table
51 # define GLOBAL_CONSTANTS_TABLE global_constants_table
52 # define GLOBAL_AUTO_GLOBALS_TABLE global_auto_globals_table
53 #else
54 # define GLOBAL_FUNCTION_TABLE CG(function_table)
55 # define GLOBAL_CLASS_TABLE CG(class_table)
56 # define GLOBAL_AUTO_GLOBALS_TABLE CG(auto_globals)
57 # define GLOBAL_CONSTANTS_TABLE EG(zend_constants)
58 #endif
59
60 ZEND_API zend_utility_values zend_uv;
61 ZEND_API zend_bool zend_dtrace_enabled;
62
63 /* version information */
64 static char *zend_version_info;
65 static uint32_t zend_version_info_length;
66 #define ZEND_CORE_VERSION_INFO "Zend Engine v" ZEND_VERSION ", Copyright (c) Zend Technologies\n"
67 #define PRINT_ZVAL_INDENT 4
68
69 /* true multithread-shared globals */
70 ZEND_API zend_class_entry *zend_standard_class_def = NULL;
71 ZEND_API size_t (*zend_printf)(const char *format, ...);
72 ZEND_API zend_write_func_t zend_write;
73 ZEND_API FILE *(*zend_fopen)(const char *filename, zend_string **opened_path);
74 ZEND_API int (*zend_stream_open_function)(const char *filename, zend_file_handle *handle);
75 ZEND_API void (*zend_ticks_function)(int ticks);
76 ZEND_API void (*zend_interrupt_function)(zend_execute_data *execute_data);
77 ZEND_API void (*zend_error_cb)(int type, const char *error_filename, const uint32_t error_lineno, const char *format, va_list args);
78 void (*zend_printf_to_smart_string)(smart_string *buf, const char *format, va_list ap);
79 void (*zend_printf_to_smart_str)(smart_str *buf, const char *format, va_list ap);
80 ZEND_API char *(*zend_getenv)(char *name, size_t name_len);
81 ZEND_API zend_string *(*zend_resolve_path)(const char *filename, size_t filename_len);
82 ZEND_API int (*zend_post_startup_cb)(void) = NULL;
83 ZEND_API void (*zend_post_shutdown_cb)(void) = NULL;
84 ZEND_API int (*zend_preload_autoload)(zend_string *filename) = NULL;
85
86 void (*zend_on_timeout)(int seconds);
87
88 static void (*zend_message_dispatcher_p)(zend_long message, const void *data);
89 static zval *(*zend_get_configuration_directive_p)(zend_string *name);
90
91 #if ZEND_RC_DEBUG
92 ZEND_API zend_bool zend_rc_debug = 0;
93 #endif
94
ZEND_INI_MH(OnUpdateErrorReporting)95 static ZEND_INI_MH(OnUpdateErrorReporting) /* {{{ */
96 {
97 if (!new_value) {
98 EG(error_reporting) = E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED;
99 } else {
100 EG(error_reporting) = atoi(ZSTR_VAL(new_value));
101 }
102 return SUCCESS;
103 }
104 /* }}} */
105
ZEND_INI_MH(OnUpdateGCEnabled)106 static ZEND_INI_MH(OnUpdateGCEnabled) /* {{{ */
107 {
108 zend_bool val;
109
110 val = zend_ini_parse_bool(new_value);
111 gc_enable(val);
112
113 return SUCCESS;
114 }
115 /* }}} */
116
ZEND_INI_DISP(zend_gc_enabled_displayer_cb)117 static ZEND_INI_DISP(zend_gc_enabled_displayer_cb) /* {{{ */
118 {
119 if (gc_enabled()) {
120 ZEND_PUTS("On");
121 } else {
122 ZEND_PUTS("Off");
123 }
124 }
125 /* }}} */
126
127
ZEND_INI_MH(OnUpdateScriptEncoding)128 static ZEND_INI_MH(OnUpdateScriptEncoding) /* {{{ */
129 {
130 if (!CG(multibyte)) {
131 return FAILURE;
132 }
133 if (!zend_multibyte_get_functions()) {
134 return SUCCESS;
135 }
136 return zend_multibyte_set_script_encoding_by_string(new_value ? ZSTR_VAL(new_value) : NULL, new_value ? ZSTR_LEN(new_value) : 0);
137 }
138 /* }}} */
139
ZEND_INI_MH(OnUpdateAssertions)140 static ZEND_INI_MH(OnUpdateAssertions) /* {{{ */
141 {
142 zend_long *p, val;
143 #ifndef ZTS
144 char *base = (char *) mh_arg2;
145 #else
146 char *base;
147
148 base = (char *) ts_resource(*((int *) mh_arg2));
149 #endif
150
151 p = (zend_long *) (base+(size_t) mh_arg1);
152
153 val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
154
155 if (stage != ZEND_INI_STAGE_STARTUP &&
156 stage != ZEND_INI_STAGE_SHUTDOWN &&
157 *p != val &&
158 (*p < 0 || val < 0)) {
159 zend_error(E_WARNING, "zend.assertions may be completely enabled or disabled only in php.ini");
160 return FAILURE;
161 }
162
163 *p = val;
164 return SUCCESS;
165 }
166 /* }}} */
167
168 #if ZEND_DEBUG
169 # define SIGNAL_CHECK_DEFAULT "1"
170 #else
171 # define SIGNAL_CHECK_DEFAULT "0"
172 #endif
173
174 ZEND_INI_BEGIN()
175 ZEND_INI_ENTRY("error_reporting", NULL, ZEND_INI_ALL, OnUpdateErrorReporting)
176 STD_ZEND_INI_ENTRY("zend.assertions", "1", ZEND_INI_ALL, OnUpdateAssertions, assertions, zend_executor_globals, executor_globals)
177 ZEND_INI_ENTRY3_EX("zend.enable_gc", "1", ZEND_INI_ALL, OnUpdateGCEnabled, NULL, NULL, NULL, zend_gc_enabled_displayer_cb)
178 STD_ZEND_INI_BOOLEAN("zend.multibyte", "0", ZEND_INI_PERDIR, OnUpdateBool, multibyte, zend_compiler_globals, compiler_globals)
179 ZEND_INI_ENTRY("zend.script_encoding", NULL, ZEND_INI_ALL, OnUpdateScriptEncoding)
180 STD_ZEND_INI_BOOLEAN("zend.detect_unicode", "1", ZEND_INI_ALL, OnUpdateBool, detect_unicode, zend_compiler_globals, compiler_globals)
181 #ifdef ZEND_SIGNALS
182 STD_ZEND_INI_BOOLEAN("zend.signal_check", SIGNAL_CHECK_DEFAULT, ZEND_INI_SYSTEM, OnUpdateBool, check, zend_signal_globals_t, zend_signal_globals)
183 #endif
184 STD_ZEND_INI_BOOLEAN("zend.exception_ignore_args", "0", ZEND_INI_ALL, OnUpdateBool, exception_ignore_args, zend_executor_globals, executor_globals)
ZEND_INI_END()185 ZEND_INI_END()
186
187 ZEND_API size_t zend_vspprintf(char **pbuf, size_t max_len, const char *format, va_list ap) /* {{{ */
188 {
189 smart_string buf = {0};
190
191 /* since there are places where (v)spprintf called without checking for null,
192 a bit of defensive coding here */
193 if (!pbuf) {
194 return 0;
195 }
196
197 zend_printf_to_smart_string(&buf, format, ap);
198
199 if (max_len && buf.len > max_len) {
200 buf.len = max_len;
201 }
202
203 smart_string_0(&buf);
204
205 if (buf.c) {
206 *pbuf = buf.c;
207 return buf.len;
208 } else {
209 *pbuf = estrndup("", 0);
210 return 0;
211 }
212 }
213 /* }}} */
214
zend_spprintf(char ** message,size_t max_len,const char * format,...)215 ZEND_API size_t zend_spprintf(char **message, size_t max_len, const char *format, ...) /* {{{ */
216 {
217 va_list arg;
218 size_t len;
219
220 va_start(arg, format);
221 len = zend_vspprintf(message, max_len, format, arg);
222 va_end(arg);
223 return len;
224 }
225 /* }}} */
226
zend_spprintf_unchecked(char ** message,size_t max_len,const char * format,...)227 ZEND_API size_t zend_spprintf_unchecked(char **message, size_t max_len, const char *format, ...) /* {{{ */
228 {
229 va_list arg;
230 size_t len;
231
232 va_start(arg, format);
233 len = zend_vspprintf(message, max_len, format, arg);
234 va_end(arg);
235 return len;
236 }
237 /* }}} */
238
zend_vstrpprintf(size_t max_len,const char * format,va_list ap)239 ZEND_API zend_string *zend_vstrpprintf(size_t max_len, const char *format, va_list ap) /* {{{ */
240 {
241 smart_str buf = {0};
242
243 zend_printf_to_smart_str(&buf, format, ap);
244
245 if (!buf.s) {
246 return ZSTR_EMPTY_ALLOC();
247 }
248
249 if (max_len && ZSTR_LEN(buf.s) > max_len) {
250 ZSTR_LEN(buf.s) = max_len;
251 }
252
253 smart_str_0(&buf);
254 return buf.s;
255 }
256 /* }}} */
257
zend_strpprintf(size_t max_len,const char * format,...)258 ZEND_API zend_string *zend_strpprintf(size_t max_len, const char *format, ...) /* {{{ */
259 {
260 va_list arg;
261 zend_string *str;
262
263 va_start(arg, format);
264 str = zend_vstrpprintf(max_len, format, arg);
265 va_end(arg);
266 return str;
267 }
268 /* }}} */
269
zend_strpprintf_unchecked(size_t max_len,const char * format,...)270 ZEND_API zend_string *zend_strpprintf_unchecked(size_t max_len, const char *format, ...) /* {{{ */
271 {
272 va_list arg;
273 zend_string *str;
274
275 va_start(arg, format);
276 str = zend_vstrpprintf(max_len, format, arg);
277 va_end(arg);
278 return str;
279 }
280 /* }}} */
281
282 static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent);
283
print_hash(smart_str * buf,HashTable * ht,int indent,zend_bool is_object)284 static void print_hash(smart_str *buf, HashTable *ht, int indent, zend_bool is_object) /* {{{ */
285 {
286 zval *tmp;
287 zend_string *string_key;
288 zend_ulong num_key;
289 int i;
290
291 for (i = 0; i < indent; i++) {
292 smart_str_appendc(buf, ' ');
293 }
294 smart_str_appends(buf, "(\n");
295 indent += PRINT_ZVAL_INDENT;
296 ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
297 for (i = 0; i < indent; i++) {
298 smart_str_appendc(buf, ' ');
299 }
300 smart_str_appendc(buf, '[');
301 if (string_key) {
302 if (is_object) {
303 const char *prop_name, *class_name;
304 size_t prop_len;
305 int mangled = zend_unmangle_property_name_ex(string_key, &class_name, &prop_name, &prop_len);
306
307 smart_str_appendl(buf, prop_name, prop_len);
308 if (class_name && mangled == SUCCESS) {
309 if (class_name[0] == '*') {
310 smart_str_appends(buf, ":protected");
311 } else {
312 smart_str_appends(buf, ":");
313 smart_str_appends(buf, class_name);
314 smart_str_appends(buf, ":private");
315 }
316 }
317 } else {
318 smart_str_append(buf, string_key);
319 }
320 } else {
321 smart_str_append_long(buf, num_key);
322 }
323 smart_str_appends(buf, "] => ");
324 zend_print_zval_r_to_buf(buf, tmp, indent+PRINT_ZVAL_INDENT);
325 smart_str_appends(buf, "\n");
326 } ZEND_HASH_FOREACH_END();
327 indent -= PRINT_ZVAL_INDENT;
328 for (i = 0; i < indent; i++) {
329 smart_str_appendc(buf, ' ');
330 }
331 smart_str_appends(buf, ")\n");
332 }
333 /* }}} */
334
print_flat_hash(HashTable * ht)335 static void print_flat_hash(HashTable *ht) /* {{{ */
336 {
337 zval *tmp;
338 zend_string *string_key;
339 zend_ulong num_key;
340 int i = 0;
341
342 ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
343 if (i++ > 0) {
344 ZEND_PUTS(",");
345 }
346 ZEND_PUTS("[");
347 if (string_key) {
348 ZEND_WRITE(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
349 } else {
350 zend_printf(ZEND_ULONG_FMT, num_key);
351 }
352 ZEND_PUTS("] => ");
353 zend_print_flat_zval_r(tmp);
354 } ZEND_HASH_FOREACH_END();
355 }
356 /* }}} */
357
zend_make_printable_zval(zval * expr,zval * expr_copy)358 ZEND_API int zend_make_printable_zval(zval *expr, zval *expr_copy) /* {{{ */
359 {
360 if (Z_TYPE_P(expr) == IS_STRING) {
361 return 0;
362 } else {
363 ZVAL_STR(expr_copy, zval_get_string_func(expr));
364 return 1;
365 }
366 }
367 /* }}} */
368
zend_print_zval(zval * expr,int indent)369 ZEND_API size_t zend_print_zval(zval *expr, int indent) /* {{{ */
370 {
371 zend_string *tmp_str;
372 zend_string *str = zval_get_tmp_string(expr, &tmp_str);
373 size_t len = ZSTR_LEN(str);
374
375 if (len != 0) {
376 zend_write(ZSTR_VAL(str), len);
377 }
378
379 zend_tmp_string_release(tmp_str);
380 return len;
381 }
382 /* }}} */
383
zend_print_flat_zval_r(zval * expr)384 ZEND_API void zend_print_flat_zval_r(zval *expr) /* {{{ */
385 {
386 switch (Z_TYPE_P(expr)) {
387 case IS_ARRAY:
388 ZEND_PUTS("Array (");
389 if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
390 if (GC_IS_RECURSIVE(Z_ARRVAL_P(expr))) {
391 ZEND_PUTS(" *RECURSION*");
392 return;
393 }
394 GC_PROTECT_RECURSION(Z_ARRVAL_P(expr));
395 }
396 print_flat_hash(Z_ARRVAL_P(expr));
397 ZEND_PUTS(")");
398 if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
399 GC_UNPROTECT_RECURSION(Z_ARRVAL_P(expr));
400 }
401 break;
402 case IS_OBJECT:
403 {
404 HashTable *properties;
405 zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
406 zend_printf("%s Object (", ZSTR_VAL(class_name));
407 zend_string_release_ex(class_name, 0);
408
409 if (GC_IS_RECURSIVE(Z_COUNTED_P(expr))) {
410 ZEND_PUTS(" *RECURSION*");
411 return;
412 }
413
414 properties = Z_OBJPROP_P(expr);
415 if (properties) {
416 GC_PROTECT_RECURSION(Z_OBJ_P(expr));
417 print_flat_hash(properties);
418 GC_UNPROTECT_RECURSION(Z_OBJ_P(expr));
419 }
420 ZEND_PUTS(")");
421 break;
422 }
423 case IS_REFERENCE:
424 zend_print_flat_zval_r(Z_REFVAL_P(expr));
425 break;
426 default:
427 zend_print_zval(expr, 0);
428 break;
429 }
430 }
431 /* }}} */
432
zend_print_zval_r_to_buf(smart_str * buf,zval * expr,int indent)433 static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent) /* {{{ */
434 {
435 switch (Z_TYPE_P(expr)) {
436 case IS_ARRAY:
437 smart_str_appends(buf, "Array\n");
438 if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
439 if (GC_IS_RECURSIVE(Z_ARRVAL_P(expr))) {
440 smart_str_appends(buf, " *RECURSION*");
441 return;
442 }
443 GC_PROTECT_RECURSION(Z_ARRVAL_P(expr));
444 }
445 print_hash(buf, Z_ARRVAL_P(expr), indent, 0);
446 if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
447 GC_UNPROTECT_RECURSION(Z_ARRVAL_P(expr));
448 }
449 break;
450 case IS_OBJECT:
451 {
452 HashTable *properties;
453
454 zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
455 smart_str_appends(buf, ZSTR_VAL(class_name));
456 zend_string_release_ex(class_name, 0);
457
458 smart_str_appends(buf, " Object\n");
459 if (GC_IS_RECURSIVE(Z_OBJ_P(expr))) {
460 smart_str_appends(buf, " *RECURSION*");
461 return;
462 }
463
464 if ((properties = zend_get_properties_for(expr, ZEND_PROP_PURPOSE_DEBUG)) == NULL) {
465 break;
466 }
467
468 GC_PROTECT_RECURSION(Z_OBJ_P(expr));
469 print_hash(buf, properties, indent, 1);
470 GC_UNPROTECT_RECURSION(Z_OBJ_P(expr));
471
472 zend_release_properties(properties);
473 break;
474 }
475 case IS_LONG:
476 smart_str_append_long(buf, Z_LVAL_P(expr));
477 break;
478 case IS_REFERENCE:
479 zend_print_zval_r_to_buf(buf, Z_REFVAL_P(expr), indent);
480 break;
481 case IS_STRING:
482 smart_str_append(buf, Z_STR_P(expr));
483 break;
484 default:
485 {
486 zend_string *str = zval_get_string_func(expr);
487 smart_str_append(buf, str);
488 zend_string_release_ex(str, 0);
489 }
490 break;
491 }
492 }
493 /* }}} */
494
zend_print_zval_r_to_str(zval * expr,int indent)495 ZEND_API zend_string *zend_print_zval_r_to_str(zval *expr, int indent) /* {{{ */
496 {
497 smart_str buf = {0};
498 zend_print_zval_r_to_buf(&buf, expr, indent);
499 smart_str_0(&buf);
500 return buf.s;
501 }
502 /* }}} */
503
zend_print_zval_r(zval * expr,int indent)504 ZEND_API void zend_print_zval_r(zval *expr, int indent) /* {{{ */
505 {
506 zend_string *str = zend_print_zval_r_to_str(expr, indent);
507 zend_write(ZSTR_VAL(str), ZSTR_LEN(str));
508 zend_string_release_ex(str, 0);
509 }
510 /* }}} */
511
zend_fopen_wrapper(const char * filename,zend_string ** opened_path)512 static FILE *zend_fopen_wrapper(const char *filename, zend_string **opened_path) /* {{{ */
513 {
514 if (opened_path) {
515 *opened_path = zend_string_init(filename, strlen(filename), 0);
516 }
517 return fopen(filename, "rb");
518 }
519 /* }}} */
520
521 #ifdef ZTS
522 static zend_bool short_tags_default = 1;
523 static uint32_t compiler_options_default = ZEND_COMPILE_DEFAULT;
524 #else
525 # define short_tags_default 1
526 # define compiler_options_default ZEND_COMPILE_DEFAULT
527 #endif
528
zend_set_default_compile_time_values(void)529 static void zend_set_default_compile_time_values(void) /* {{{ */
530 {
531 /* default compile-time values */
532 CG(short_tags) = short_tags_default;
533 CG(compiler_options) = compiler_options_default;
534
535 CG(rtd_key_counter) = 0;
536 }
537 /* }}} */
538
539 #ifdef ZEND_WIN32
zend_get_windows_version_info(OSVERSIONINFOEX * osvi)540 static void zend_get_windows_version_info(OSVERSIONINFOEX *osvi) /* {{{ */
541 {
542 ZeroMemory(osvi, sizeof(OSVERSIONINFOEX));
543 osvi->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
544 if(!GetVersionEx((OSVERSIONINFO *) osvi)) {
545 ZEND_ASSERT(0); /* Should not happen as sizeof is used. */
546 }
547 }
548 /* }}} */
549 #endif
550
zend_init_exception_op(void)551 static void zend_init_exception_op(void) /* {{{ */
552 {
553 memset(EG(exception_op), 0, sizeof(EG(exception_op)));
554 EG(exception_op)[0].opcode = ZEND_HANDLE_EXCEPTION;
555 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op));
556 EG(exception_op)[1].opcode = ZEND_HANDLE_EXCEPTION;
557 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+1);
558 EG(exception_op)[2].opcode = ZEND_HANDLE_EXCEPTION;
559 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+2);
560 }
561 /* }}} */
562
zend_init_call_trampoline_op(void)563 static void zend_init_call_trampoline_op(void) /* {{{ */
564 {
565 memset(&EG(call_trampoline_op), 0, sizeof(EG(call_trampoline_op)));
566 EG(call_trampoline_op).opcode = ZEND_CALL_TRAMPOLINE;
567 ZEND_VM_SET_OPCODE_HANDLER(&EG(call_trampoline_op));
568 }
569 /* }}} */
570
auto_global_dtor(zval * zv)571 static void auto_global_dtor(zval *zv) /* {{{ */
572 {
573 free(Z_PTR_P(zv));
574 }
575 /* }}} */
576
577 #ifdef ZTS
function_copy_ctor(zval * zv)578 static void function_copy_ctor(zval *zv) /* {{{ */
579 {
580 zend_function *old_func = Z_FUNC_P(zv);
581 zend_function *func;
582
583 if (old_func->type == ZEND_USER_FUNCTION) {
584 ZEND_ASSERT(old_func->op_array.fn_flags & ZEND_ACC_IMMUTABLE);
585 return;
586 }
587 func = pemalloc(sizeof(zend_internal_function), 1);
588 Z_FUNC_P(zv) = func;
589 memcpy(func, old_func, sizeof(zend_internal_function));
590 function_add_ref(func);
591 if ((old_func->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS))
592 && old_func->common.arg_info) {
593 uint32_t i;
594 uint32_t num_args = old_func->common.num_args + 1;
595 zend_arg_info *arg_info = old_func->common.arg_info - 1;
596 zend_arg_info *new_arg_info;
597
598 if (old_func->common.fn_flags & ZEND_ACC_VARIADIC) {
599 num_args++;
600 }
601 new_arg_info = pemalloc(sizeof(zend_arg_info) * num_args, 1);
602 memcpy(new_arg_info, arg_info, sizeof(zend_arg_info) * num_args);
603 for (i = 0 ; i < num_args; i++) {
604 if (ZEND_TYPE_IS_CLASS(arg_info[i].type)) {
605 zend_string *name = zend_string_dup(ZEND_TYPE_NAME(arg_info[i].type), 1);
606
607 new_arg_info[i].type =
608 ZEND_TYPE_ENCODE_CLASS(
609 name, ZEND_TYPE_ALLOW_NULL(arg_info[i].type));
610 }
611 }
612 func->common.arg_info = new_arg_info + 1;
613 }
614 }
615 /* }}} */
616
auto_global_copy_ctor(zval * zv)617 static void auto_global_copy_ctor(zval *zv) /* {{{ */
618 {
619 zend_auto_global *old_ag = (zend_auto_global *) Z_PTR_P(zv);
620 zend_auto_global *new_ag = pemalloc(sizeof(zend_auto_global), 1);
621
622 new_ag->name = old_ag->name;
623 new_ag->auto_global_callback = old_ag->auto_global_callback;
624 new_ag->jit = old_ag->jit;
625
626 Z_PTR_P(zv) = new_ag;
627 }
628 /* }}} */
629
compiler_globals_ctor(zend_compiler_globals * compiler_globals)630 static void compiler_globals_ctor(zend_compiler_globals *compiler_globals) /* {{{ */
631 {
632 compiler_globals->compiled_filename = NULL;
633
634 compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
635 zend_hash_init_ex(compiler_globals->function_table, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
636 zend_hash_copy(compiler_globals->function_table, global_function_table, function_copy_ctor);
637
638 compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
639 zend_hash_init_ex(compiler_globals->class_table, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
640 zend_hash_copy(compiler_globals->class_table, global_class_table, zend_class_add_ref);
641
642 zend_set_default_compile_time_values();
643
644 compiler_globals->auto_globals = (HashTable *) malloc(sizeof(HashTable));
645 zend_hash_init_ex(compiler_globals->auto_globals, 8, NULL, auto_global_dtor, 1, 0);
646 zend_hash_copy(compiler_globals->auto_globals, global_auto_globals_table, auto_global_copy_ctor);
647
648 compiler_globals->script_encoding_list = NULL;
649
650 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
651 /* Map region is going to be created and resized at run-time. */
652 compiler_globals->map_ptr_base = NULL;
653 compiler_globals->map_ptr_size = 0;
654 compiler_globals->map_ptr_last = global_map_ptr_last;
655 if (compiler_globals->map_ptr_last) {
656 /* Allocate map_ptr table */
657 compiler_globals->map_ptr_size = ZEND_MM_ALIGNED_SIZE_EX(compiler_globals->map_ptr_last, 4096);
658 compiler_globals->map_ptr_base = pemalloc(compiler_globals->map_ptr_size * sizeof(void*), 1);
659 memset(compiler_globals->map_ptr_base, 0, compiler_globals->map_ptr_last * sizeof(void*));
660 }
661 #else
662 # error "Unknown ZEND_MAP_PTR_KIND"
663 #endif
664 }
665 /* }}} */
666
compiler_globals_dtor(zend_compiler_globals * compiler_globals)667 static void compiler_globals_dtor(zend_compiler_globals *compiler_globals) /* {{{ */
668 {
669 if (compiler_globals->function_table != GLOBAL_FUNCTION_TABLE) {
670 zend_hash_destroy(compiler_globals->function_table);
671 free(compiler_globals->function_table);
672 }
673 if (compiler_globals->class_table != GLOBAL_CLASS_TABLE) {
674 zend_hash_destroy(compiler_globals->class_table);
675 free(compiler_globals->class_table);
676 }
677 if (compiler_globals->auto_globals != GLOBAL_AUTO_GLOBALS_TABLE) {
678 zend_hash_destroy(compiler_globals->auto_globals);
679 free(compiler_globals->auto_globals);
680 }
681 if (compiler_globals->script_encoding_list) {
682 pefree((char*)compiler_globals->script_encoding_list, 1);
683 }
684 if (compiler_globals->map_ptr_base) {
685 free(compiler_globals->map_ptr_base);
686 compiler_globals->map_ptr_base = NULL;
687 compiler_globals->map_ptr_size = 0;
688 }
689 }
690 /* }}} */
691
executor_globals_ctor(zend_executor_globals * executor_globals)692 static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
693 {
694 zend_startup_constants();
695 zend_copy_constants(executor_globals->zend_constants, GLOBAL_CONSTANTS_TABLE);
696 zend_init_rsrc_plist();
697 zend_init_exception_op();
698 zend_init_call_trampoline_op();
699 memset(&executor_globals->trampoline, 0, sizeof(zend_op_array));
700 executor_globals->lambda_count = 0;
701 ZVAL_UNDEF(&executor_globals->user_error_handler);
702 ZVAL_UNDEF(&executor_globals->user_exception_handler);
703 executor_globals->in_autoload = NULL;
704 executor_globals->current_execute_data = NULL;
705 executor_globals->current_module = NULL;
706 executor_globals->exit_status = 0;
707 #if XPFPA_HAVE_CW
708 executor_globals->saved_fpu_cw = 0;
709 #endif
710 executor_globals->saved_fpu_cw_ptr = NULL;
711 executor_globals->active = 0;
712 executor_globals->bailout = NULL;
713 executor_globals->error_handling = EH_NORMAL;
714 executor_globals->exception_class = NULL;
715 executor_globals->exception = NULL;
716 executor_globals->objects_store.object_buckets = NULL;
717 #ifdef ZEND_WIN32
718 zend_get_windows_version_info(&executor_globals->windows_version_info);
719 #endif
720 executor_globals->flags = EG_FLAGS_INITIAL;
721 }
722 /* }}} */
723
executor_globals_dtor(zend_executor_globals * executor_globals)724 static void executor_globals_dtor(zend_executor_globals *executor_globals) /* {{{ */
725 {
726 zend_ini_dtor(executor_globals->ini_directives);
727
728 if (&executor_globals->persistent_list != global_persistent_list) {
729 zend_destroy_rsrc_list(&executor_globals->persistent_list);
730 }
731 if (executor_globals->zend_constants != GLOBAL_CONSTANTS_TABLE) {
732 zend_hash_destroy(executor_globals->zend_constants);
733 free(executor_globals->zend_constants);
734 }
735 }
736 /* }}} */
737
zend_new_thread_end_handler(THREAD_T thread_id)738 static void zend_new_thread_end_handler(THREAD_T thread_id) /* {{{ */
739 {
740 if (zend_copy_ini_directives() == SUCCESS) {
741 zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP);
742 }
743 }
744 /* }}} */
745 #endif
746
747 #if defined(__FreeBSD__) || defined(__DragonFly__)
748 /* FreeBSD and DragonFly floating point precision fix */
749 #include <floatingpoint.h>
750 #endif
751
ini_scanner_globals_ctor(zend_ini_scanner_globals * scanner_globals_p)752 static void ini_scanner_globals_ctor(zend_ini_scanner_globals *scanner_globals_p) /* {{{ */
753 {
754 memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
755 }
756 /* }}} */
757
php_scanner_globals_ctor(zend_php_scanner_globals * scanner_globals_p)758 static void php_scanner_globals_ctor(zend_php_scanner_globals *scanner_globals_p) /* {{{ */
759 {
760 memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
761 }
762 /* }}} */
763
module_destructor_zval(zval * zv)764 static void module_destructor_zval(zval *zv) /* {{{ */
765 {
766 zend_module_entry *module = (zend_module_entry*)Z_PTR_P(zv);
767
768 module_destructor(module);
769 free(module);
770 }
771 /* }}} */
772
php_auto_globals_create_globals(zend_string * name)773 static zend_bool php_auto_globals_create_globals(zend_string *name) /* {{{ */
774 {
775 zval globals;
776
777 /* IS_ARRAY, but with ref-counter 1 and not IS_TYPE_REFCOUNTED */
778 ZVAL_ARR(&globals, &EG(symbol_table));
779 Z_TYPE_FLAGS_P(&globals) = 0;
780 ZVAL_NEW_REF(&globals, &globals);
781 zend_hash_update(&EG(symbol_table), name, &globals);
782 return 0;
783 }
784 /* }}} */
785
zend_startup(zend_utility_functions * utility_functions)786 int zend_startup(zend_utility_functions *utility_functions) /* {{{ */
787 {
788 #ifdef ZTS
789 zend_compiler_globals *compiler_globals;
790 zend_executor_globals *executor_globals;
791 extern ZEND_API ts_rsrc_id ini_scanner_globals_id;
792 extern ZEND_API ts_rsrc_id language_scanner_globals_id;
793 #else
794 extern zend_ini_scanner_globals ini_scanner_globals;
795 extern zend_php_scanner_globals language_scanner_globals;
796 #endif
797
798 zend_cpu_startup();
799
800 #ifdef ZEND_WIN32
801 php_win32_cp_set_by_id(65001);
802 #endif
803
804 start_memory_manager();
805
806 virtual_cwd_startup(); /* Could use shutdown to free the main cwd but it would just slow it down for CGI */
807
808 #if defined(__FreeBSD__) || defined(__DragonFly__)
809 /* FreeBSD and DragonFly floating point precision fix */
810 fpsetmask(0);
811 #endif
812
813 zend_startup_strtod();
814 zend_startup_extensions_mechanism();
815
816 /* Set up utility functions and values */
817 zend_error_cb = utility_functions->error_function;
818 zend_printf = utility_functions->printf_function;
819 zend_write = (zend_write_func_t) utility_functions->write_function;
820 zend_fopen = utility_functions->fopen_function;
821 if (!zend_fopen) {
822 zend_fopen = zend_fopen_wrapper;
823 }
824 zend_stream_open_function = utility_functions->stream_open_function;
825 zend_message_dispatcher_p = utility_functions->message_handler;
826 zend_get_configuration_directive_p = utility_functions->get_configuration_directive;
827 zend_ticks_function = utility_functions->ticks_function;
828 zend_on_timeout = utility_functions->on_timeout;
829 zend_printf_to_smart_string = utility_functions->printf_to_smart_string_function;
830 zend_printf_to_smart_str = utility_functions->printf_to_smart_str_function;
831 zend_getenv = utility_functions->getenv_function;
832 zend_resolve_path = utility_functions->resolve_path_function;
833
834 zend_interrupt_function = NULL;
835
836 #if HAVE_DTRACE
837 /* build with dtrace support */
838 {
839 char *tmp = getenv("USE_ZEND_DTRACE");
840
841 if (tmp && zend_atoi(tmp, 0)) {
842 zend_dtrace_enabled = 1;
843 zend_compile_file = dtrace_compile_file;
844 zend_execute_ex = dtrace_execute_ex;
845 zend_execute_internal = dtrace_execute_internal;
846 } else {
847 zend_compile_file = compile_file;
848 zend_execute_ex = execute_ex;
849 zend_execute_internal = NULL;
850 }
851 }
852 #else
853 zend_compile_file = compile_file;
854 zend_execute_ex = execute_ex;
855 zend_execute_internal = NULL;
856 #endif /* HAVE_DTRACE */
857 zend_compile_string = compile_string;
858 zend_throw_exception_hook = NULL;
859
860 /* Set up the default garbage collection implementation. */
861 gc_collect_cycles = zend_gc_collect_cycles;
862
863 zend_vm_init();
864
865 /* set up version */
866 zend_version_info = strdup(ZEND_CORE_VERSION_INFO);
867 zend_version_info_length = sizeof(ZEND_CORE_VERSION_INFO) - 1;
868
869 GLOBAL_FUNCTION_TABLE = (HashTable *) malloc(sizeof(HashTable));
870 GLOBAL_CLASS_TABLE = (HashTable *) malloc(sizeof(HashTable));
871 GLOBAL_AUTO_GLOBALS_TABLE = (HashTable *) malloc(sizeof(HashTable));
872 GLOBAL_CONSTANTS_TABLE = (HashTable *) malloc(sizeof(HashTable));
873
874 zend_hash_init_ex(GLOBAL_FUNCTION_TABLE, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
875 zend_hash_init_ex(GLOBAL_CLASS_TABLE, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
876 zend_hash_init_ex(GLOBAL_AUTO_GLOBALS_TABLE, 8, NULL, auto_global_dtor, 1, 0);
877 zend_hash_init_ex(GLOBAL_CONSTANTS_TABLE, 128, NULL, ZEND_CONSTANT_DTOR, 1, 0);
878
879 zend_hash_init_ex(&module_registry, 32, NULL, module_destructor_zval, 1, 0);
880 zend_init_rsrc_list_dtors();
881
882 #ifdef ZTS
883 ts_allocate_fast_id(&compiler_globals_id, &compiler_globals_offset, sizeof(zend_compiler_globals), (ts_allocate_ctor) compiler_globals_ctor, (ts_allocate_dtor) compiler_globals_dtor);
884 ts_allocate_fast_id(&executor_globals_id, &executor_globals_offset, sizeof(zend_executor_globals), (ts_allocate_ctor) executor_globals_ctor, (ts_allocate_dtor) executor_globals_dtor);
885 ts_allocate_fast_id(&language_scanner_globals_id, &language_scanner_globals_offset, sizeof(zend_php_scanner_globals), (ts_allocate_ctor) php_scanner_globals_ctor, NULL);
886 ts_allocate_fast_id(&ini_scanner_globals_id, &ini_scanner_globals_offset, sizeof(zend_ini_scanner_globals), (ts_allocate_ctor) ini_scanner_globals_ctor, NULL);
887 compiler_globals = ts_resource(compiler_globals_id);
888 executor_globals = ts_resource(executor_globals_id);
889
890 compiler_globals_dtor(compiler_globals);
891 compiler_globals->in_compilation = 0;
892 compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
893 compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
894
895 *compiler_globals->function_table = *GLOBAL_FUNCTION_TABLE;
896 *compiler_globals->class_table = *GLOBAL_CLASS_TABLE;
897 compiler_globals->auto_globals = GLOBAL_AUTO_GLOBALS_TABLE;
898
899 zend_hash_destroy(executor_globals->zend_constants);
900 *executor_globals->zend_constants = *GLOBAL_CONSTANTS_TABLE;
901 #else
902 ini_scanner_globals_ctor(&ini_scanner_globals);
903 php_scanner_globals_ctor(&language_scanner_globals);
904 zend_set_default_compile_time_values();
905 #ifdef ZEND_WIN32
906 zend_get_windows_version_info(&EG(windows_version_info));
907 #endif
908 # if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
909 /* Create a map region, used for indirect pointers from shared to
910 * process memory. It's allocatred once and never resized.
911 * All processes must map it into the same address space.
912 */
913 CG(map_ptr_size) = 1024 * 1024; // TODO: initial size ???
914 CG(map_ptr_last) = 0;
915 CG(map_ptr_base) = pemalloc(CG(map_ptr_size) * sizeof(void*), 1);
916 # elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
917 /* Map region is going to be created and resized at run-time. */
918 CG(map_ptr_base) = NULL;
919 CG(map_ptr_size) = 0;
920 CG(map_ptr_last) = 0;
921 # else
922 # error "Unknown ZEND_MAP_PTR_KIND"
923 # endif
924 #endif
925 EG(error_reporting) = E_ALL & ~E_NOTICE;
926
927 zend_interned_strings_init();
928 zend_startup_builtin_functions();
929 zend_register_standard_constants();
930 zend_register_auto_global(zend_string_init_interned("GLOBALS", sizeof("GLOBALS") - 1, 1), 1, php_auto_globals_create_globals);
931
932 #ifndef ZTS
933 zend_init_rsrc_plist();
934 zend_init_exception_op();
935 zend_init_call_trampoline_op();
936 #endif
937
938 zend_ini_startup();
939
940 #ifdef ZEND_WIN32
941 /* Uses INI settings, so needs to be run after it. */
942 php_win32_cp_setup();
943 #endif
944
945 #ifdef ZTS
946 tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
947 tsrm_set_shutdown_handler(zend_interned_strings_dtor);
948 #endif
949
950 return SUCCESS;
951 }
952 /* }}} */
953
zend_register_standard_ini_entries(void)954 void zend_register_standard_ini_entries(void) /* {{{ */
955 {
956 int module_number = 0;
957
958 REGISTER_INI_ENTRIES();
959 }
960 /* }}} */
961
zend_resolve_property_types(void)962 static void zend_resolve_property_types(void) /* {{{ */
963 {
964 zend_class_entry *ce;
965 zend_property_info *prop_info;
966
967 ZEND_HASH_FOREACH_PTR(CG(class_table), ce) {
968 if (ce->type != ZEND_INTERNAL_CLASS) {
969 continue;
970 }
971
972 if (UNEXPECTED(ZEND_CLASS_HAS_TYPE_HINTS(ce))) {
973 ZEND_HASH_FOREACH_PTR(&ce->properties_info, prop_info) {
974 if (ZEND_TYPE_IS_NAME(prop_info->type)) {
975 zend_string *type_name = ZEND_TYPE_NAME(prop_info->type);
976 zend_string *lc_type_name = zend_string_tolower(type_name);
977 zend_class_entry *prop_ce = zend_hash_find_ptr(CG(class_table), lc_type_name);
978
979 ZEND_ASSERT(prop_ce && prop_ce->type == ZEND_INTERNAL_CLASS);
980 prop_info->type = ZEND_TYPE_ENCODE_CE(prop_ce, ZEND_TYPE_ALLOW_NULL(prop_info->type));
981 zend_string_release(lc_type_name);
982 zend_string_release(type_name);
983 }
984 } ZEND_HASH_FOREACH_END();
985 }
986 ce->ce_flags |= ZEND_ACC_PROPERTY_TYPES_RESOLVED;
987 } ZEND_HASH_FOREACH_END();
988 }
989 /* }}} */
990
991 /* Unlink the global (r/o) copies of the class, function and constant tables,
992 * and use a fresh r/w copy for the startup thread
993 */
zend_post_startup(void)994 int zend_post_startup(void) /* {{{ */
995 {
996 #ifdef ZTS
997 zend_encoding **script_encoding_list;
998
999 zend_compiler_globals *compiler_globals = ts_resource(compiler_globals_id);
1000 zend_executor_globals *executor_globals = ts_resource(executor_globals_id);
1001 #endif
1002
1003 zend_resolve_property_types();
1004
1005 if (zend_post_startup_cb) {
1006 int (*cb)(void) = zend_post_startup_cb;
1007
1008 zend_post_startup_cb = NULL;
1009 if (cb() != SUCCESS) {
1010 return FAILURE;
1011 }
1012 }
1013
1014 #ifdef ZTS
1015 *GLOBAL_FUNCTION_TABLE = *compiler_globals->function_table;
1016 *GLOBAL_CLASS_TABLE = *compiler_globals->class_table;
1017 *GLOBAL_CONSTANTS_TABLE = *executor_globals->zend_constants;
1018 global_map_ptr_last = compiler_globals->map_ptr_last;
1019
1020 short_tags_default = CG(short_tags);
1021 compiler_options_default = CG(compiler_options);
1022
1023 zend_destroy_rsrc_list(&EG(persistent_list));
1024 free(compiler_globals->function_table);
1025 compiler_globals->function_table = NULL;
1026 free(compiler_globals->class_table);
1027 compiler_globals->class_table = NULL;
1028 free(compiler_globals->map_ptr_base);
1029 compiler_globals->map_ptr_base = NULL;
1030 if ((script_encoding_list = (zend_encoding **)compiler_globals->script_encoding_list)) {
1031 compiler_globals_ctor(compiler_globals);
1032 compiler_globals->script_encoding_list = (const zend_encoding **)script_encoding_list;
1033 } else {
1034 compiler_globals_ctor(compiler_globals);
1035 }
1036 free(EG(zend_constants));
1037 EG(zend_constants) = NULL;
1038
1039 executor_globals_ctor(executor_globals);
1040 global_persistent_list = &EG(persistent_list);
1041 zend_copy_ini_directives();
1042 #else
1043 global_map_ptr_last = CG(map_ptr_last);
1044 #endif
1045
1046 return SUCCESS;
1047 }
1048 /* }}} */
1049
zend_shutdown(void)1050 void zend_shutdown(void) /* {{{ */
1051 {
1052 zend_vm_dtor();
1053
1054 zend_destroy_rsrc_list(&EG(persistent_list));
1055 zend_destroy_modules();
1056
1057 virtual_cwd_deactivate();
1058 virtual_cwd_shutdown();
1059
1060 zend_hash_destroy(GLOBAL_FUNCTION_TABLE);
1061 zend_hash_destroy(GLOBAL_CLASS_TABLE);
1062
1063 zend_hash_destroy(GLOBAL_AUTO_GLOBALS_TABLE);
1064 free(GLOBAL_AUTO_GLOBALS_TABLE);
1065
1066 zend_shutdown_extensions();
1067 free(zend_version_info);
1068
1069 free(GLOBAL_FUNCTION_TABLE);
1070 free(GLOBAL_CLASS_TABLE);
1071
1072 zend_hash_destroy(GLOBAL_CONSTANTS_TABLE);
1073 free(GLOBAL_CONSTANTS_TABLE);
1074 zend_shutdown_strtod();
1075
1076 #ifdef ZTS
1077 GLOBAL_FUNCTION_TABLE = NULL;
1078 GLOBAL_CLASS_TABLE = NULL;
1079 GLOBAL_AUTO_GLOBALS_TABLE = NULL;
1080 GLOBAL_CONSTANTS_TABLE = NULL;
1081 ts_free_id(executor_globals_id);
1082 ts_free_id(compiler_globals_id);
1083 #else
1084 if (CG(map_ptr_base)) {
1085 free(CG(map_ptr_base));
1086 CG(map_ptr_base) = NULL;
1087 CG(map_ptr_size) = 0;
1088 }
1089 if (CG(script_encoding_list)) {
1090 free(CG(script_encoding_list));
1091 CG(script_encoding_list) = NULL;
1092 CG(script_encoding_list_size) = 0;
1093 }
1094 #endif
1095 zend_destroy_rsrc_list_dtors();
1096 }
1097 /* }}} */
1098
zend_set_utility_values(zend_utility_values * utility_values)1099 void zend_set_utility_values(zend_utility_values *utility_values) /* {{{ */
1100 {
1101 zend_uv = *utility_values;
1102 }
1103 /* }}} */
1104
1105 /* this should be compatible with the standard zenderror */
zenderror(const char * error)1106 ZEND_COLD void zenderror(const char *error) /* {{{ */
1107 {
1108 CG(parse_error) = 0;
1109
1110 if (EG(exception)) {
1111 /* An exception was thrown in the lexer, don't throw another in the parser. */
1112 return;
1113 }
1114
1115 zend_throw_exception(zend_ce_parse_error, error, 0);
1116 }
1117 /* }}} */
1118
BEGIN_EXTERN_C()1119 BEGIN_EXTERN_C()
1120 ZEND_API ZEND_COLD ZEND_NORETURN void _zend_bailout(const char *filename, uint32_t lineno) /* {{{ */
1121 {
1122
1123 if (!EG(bailout)) {
1124 zend_output_debug_string(1, "%s(%d) : Bailed out without a bailout address!", filename, lineno);
1125 exit(-1);
1126 }
1127 gc_protect(1);
1128 CG(unclean_shutdown) = 1;
1129 CG(active_class_entry) = NULL;
1130 CG(in_compilation) = 0;
1131 EG(current_execute_data) = NULL;
1132 LONGJMP(*EG(bailout), FAILURE);
1133 }
1134 /* }}} */
END_EXTERN_C()1135 END_EXTERN_C()
1136
1137 ZEND_API void zend_append_version_info(const zend_extension *extension) /* {{{ */
1138 {
1139 char *new_info;
1140 uint32_t new_info_length;
1141
1142 new_info_length = (uint32_t)(sizeof(" with v, , by \n")
1143 + strlen(extension->name)
1144 + strlen(extension->version)
1145 + strlen(extension->copyright)
1146 + strlen(extension->author));
1147
1148 new_info = (char *) malloc(new_info_length + 1);
1149
1150 snprintf(new_info, new_info_length, " with %s v%s, %s, by %s\n", extension->name, extension->version, extension->copyright, extension->author);
1151
1152 zend_version_info = (char *) realloc(zend_version_info, zend_version_info_length+new_info_length + 1);
1153 strncat(zend_version_info, new_info, new_info_length);
1154 zend_version_info_length += new_info_length;
1155 free(new_info);
1156 }
1157 /* }}} */
1158
get_zend_version(void)1159 ZEND_API char *get_zend_version(void) /* {{{ */
1160 {
1161 return zend_version_info;
1162 }
1163 /* }}} */
1164
zend_activate(void)1165 ZEND_API void zend_activate(void) /* {{{ */
1166 {
1167 #ifdef ZTS
1168 virtual_cwd_activate();
1169 #endif
1170 gc_reset();
1171 init_compiler();
1172 init_executor();
1173 startup_scanner();
1174 if (CG(map_ptr_last)) {
1175 memset(CG(map_ptr_base), 0, CG(map_ptr_last) * sizeof(void*));
1176 }
1177 }
1178 /* }}} */
1179
zend_call_destructors(void)1180 void zend_call_destructors(void) /* {{{ */
1181 {
1182 zend_try {
1183 shutdown_destructors();
1184 } zend_end_try();
1185 }
1186 /* }}} */
1187
zend_deactivate(void)1188 ZEND_API void zend_deactivate(void) /* {{{ */
1189 {
1190 /* we're no longer executing anything */
1191 EG(current_execute_data) = NULL;
1192
1193 zend_try {
1194 shutdown_scanner();
1195 } zend_end_try();
1196
1197 /* shutdown_executor() takes care of its own bailout handling */
1198 shutdown_executor();
1199
1200 zend_try {
1201 zend_ini_deactivate();
1202 } zend_end_try();
1203
1204 zend_try {
1205 shutdown_compiler();
1206 } zend_end_try();
1207
1208 zend_destroy_rsrc_list(&EG(regular_list));
1209
1210 #if GC_BENCH
1211 fprintf(stderr, "GC Statistics\n");
1212 fprintf(stderr, "-------------\n");
1213 fprintf(stderr, "Runs: %d\n", GC_G(gc_runs));
1214 fprintf(stderr, "Collected: %d\n", GC_G(collected));
1215 fprintf(stderr, "Root buffer length: %d\n", GC_G(root_buf_length));
1216 fprintf(stderr, "Root buffer peak: %d\n\n", GC_G(root_buf_peak));
1217 fprintf(stderr, " Possible Remove from Marked\n");
1218 fprintf(stderr, " Root Buffered buffer grey\n");
1219 fprintf(stderr, " -------- -------- ----------- ------\n");
1220 fprintf(stderr, "ZVAL %8d %8d %9d %8d\n", GC_G(zval_possible_root), GC_G(zval_buffered), GC_G(zval_remove_from_buffer), GC_G(zval_marked_grey));
1221 #endif
1222 }
1223 /* }}} */
1224
BEGIN_EXTERN_C()1225 BEGIN_EXTERN_C()
1226 ZEND_API void zend_message_dispatcher(zend_long message, const void *data) /* {{{ */
1227 {
1228 if (zend_message_dispatcher_p) {
1229 zend_message_dispatcher_p(message, data);
1230 }
1231 }
1232 /* }}} */
END_EXTERN_C()1233 END_EXTERN_C()
1234
1235 ZEND_API zval *zend_get_configuration_directive(zend_string *name) /* {{{ */
1236 {
1237 if (zend_get_configuration_directive_p) {
1238 return zend_get_configuration_directive_p(name);
1239 } else {
1240 return NULL;
1241 }
1242 }
1243 /* }}} */
1244
1245 #define SAVE_STACK(stack) do { \
1246 if (CG(stack).top) { \
1247 memcpy(&stack, &CG(stack), sizeof(zend_stack)); \
1248 CG(stack).top = CG(stack).max = 0; \
1249 CG(stack).elements = NULL; \
1250 } else { \
1251 stack.top = 0; \
1252 } \
1253 } while (0)
1254
1255 #define RESTORE_STACK(stack) do { \
1256 if (stack.top) { \
1257 zend_stack_destroy(&CG(stack)); \
1258 memcpy(&CG(stack), &stack, sizeof(zend_stack)); \
1259 } \
1260 } while (0)
1261
zend_error_va_list(int type,const char * error_filename,uint32_t error_lineno,const char * format,va_list args)1262 static ZEND_COLD void zend_error_va_list(
1263 int type, const char *error_filename, uint32_t error_lineno,
1264 const char *format, va_list args)
1265 {
1266 va_list usr_copy;
1267 zval params[5];
1268 zval retval;
1269 zval orig_user_error_handler;
1270 zend_bool in_compilation;
1271 zend_class_entry *saved_class_entry;
1272 zend_stack loop_var_stack;
1273 zend_stack delayed_oplines_stack;
1274 zend_array *symbol_table;
1275 zend_class_entry *orig_fake_scope;
1276
1277 /* Report about uncaught exception in case of fatal errors */
1278 if (EG(exception)) {
1279 zend_execute_data *ex;
1280 const zend_op *opline;
1281
1282 switch (type) {
1283 case E_CORE_ERROR:
1284 case E_ERROR:
1285 case E_RECOVERABLE_ERROR:
1286 case E_PARSE:
1287 case E_COMPILE_ERROR:
1288 case E_USER_ERROR:
1289 ex = EG(current_execute_data);
1290 opline = NULL;
1291 while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
1292 ex = ex->prev_execute_data;
1293 }
1294 if (ex && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
1295 EG(opline_before_exception)) {
1296 opline = EG(opline_before_exception);
1297 }
1298 zend_exception_error(EG(exception), E_WARNING);
1299 EG(exception) = NULL;
1300 if (opline) {
1301 ex->opline = opline;
1302 }
1303 break;
1304 default:
1305 break;
1306 }
1307 }
1308
1309 #ifdef HAVE_DTRACE
1310 if (DTRACE_ERROR_ENABLED()) {
1311 char *dtrace_error_buffer;
1312 va_copy(usr_copy, args);
1313 zend_vspprintf(&dtrace_error_buffer, 0, format, usr_copy);
1314 va_end(usr_copy);
1315 DTRACE_ERROR(dtrace_error_buffer, (char *)error_filename, error_lineno);
1316 efree(dtrace_error_buffer);
1317 }
1318 #endif /* HAVE_DTRACE */
1319
1320 /* if we don't have a user defined error handler */
1321 if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF
1322 || !(EG(user_error_handler_error_reporting) & type)
1323 || EG(error_handling) != EH_NORMAL) {
1324 zend_error_cb(type, error_filename, error_lineno, format, args);
1325 } else switch (type) {
1326 case E_ERROR:
1327 case E_PARSE:
1328 case E_CORE_ERROR:
1329 case E_CORE_WARNING:
1330 case E_COMPILE_ERROR:
1331 case E_COMPILE_WARNING:
1332 /* The error may not be safe to handle in user-space */
1333 zend_error_cb(type, error_filename, error_lineno, format, args);
1334 break;
1335 default:
1336 /* Handle the error in user space */
1337 va_copy(usr_copy, args);
1338 ZVAL_STR(¶ms[1], zend_vstrpprintf(0, format, usr_copy));
1339 va_end(usr_copy);
1340
1341 ZVAL_LONG(¶ms[0], type);
1342
1343 if (error_filename) {
1344 ZVAL_STRING(¶ms[2], error_filename);
1345 } else {
1346 ZVAL_NULL(¶ms[2]);
1347 }
1348
1349 ZVAL_LONG(¶ms[3], error_lineno);
1350
1351 symbol_table = zend_rebuild_symbol_table();
1352
1353 /* during shutdown the symbol table table can be still null */
1354 if (!symbol_table) {
1355 ZVAL_NULL(¶ms[4]);
1356 } else {
1357 ZVAL_ARR(¶ms[4], zend_array_dup(symbol_table));
1358 }
1359
1360 ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
1361 ZVAL_UNDEF(&EG(user_error_handler));
1362
1363 /* User error handler may include() additinal PHP files.
1364 * If an error was generated during comilation PHP will compile
1365 * such scripts recursively, but some CG() variables may be
1366 * inconsistent. */
1367
1368 in_compilation = CG(in_compilation);
1369 if (in_compilation) {
1370 saved_class_entry = CG(active_class_entry);
1371 CG(active_class_entry) = NULL;
1372 SAVE_STACK(loop_var_stack);
1373 SAVE_STACK(delayed_oplines_stack);
1374 CG(in_compilation) = 0;
1375 }
1376
1377 orig_fake_scope = EG(fake_scope);
1378 EG(fake_scope) = NULL;
1379
1380 if (call_user_function(CG(function_table), NULL, &orig_user_error_handler, &retval, 5, params) == SUCCESS) {
1381 if (Z_TYPE(retval) != IS_UNDEF) {
1382 if (Z_TYPE(retval) == IS_FALSE) {
1383 zend_error_cb(type, error_filename, error_lineno, format, args);
1384 }
1385 zval_ptr_dtor(&retval);
1386 }
1387 } else if (!EG(exception)) {
1388 /* The user error handler failed, use built-in error handler */
1389 zend_error_cb(type, error_filename, error_lineno, format, args);
1390 }
1391
1392 EG(fake_scope) = orig_fake_scope;
1393
1394 if (in_compilation) {
1395 CG(active_class_entry) = saved_class_entry;
1396 RESTORE_STACK(loop_var_stack);
1397 RESTORE_STACK(delayed_oplines_stack);
1398 CG(in_compilation) = 1;
1399 }
1400
1401 zval_ptr_dtor(¶ms[4]);
1402 zval_ptr_dtor(¶ms[2]);
1403 zval_ptr_dtor(¶ms[1]);
1404
1405 if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF) {
1406 ZVAL_COPY_VALUE(&EG(user_error_handler), &orig_user_error_handler);
1407 } else {
1408 zval_ptr_dtor(&orig_user_error_handler);
1409 }
1410 break;
1411 }
1412
1413 if (type == E_PARSE) {
1414 /* eval() errors do not affect exit_status */
1415 if (!(EG(current_execute_data) &&
1416 EG(current_execute_data)->func &&
1417 ZEND_USER_CODE(EG(current_execute_data)->func->type) &&
1418 EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
1419 EG(current_execute_data)->opline->extended_value == ZEND_EVAL)) {
1420 EG(exit_status) = 255;
1421 }
1422 }
1423 }
1424 /* }}} */
1425
get_filename_lineno(int type,const char ** filename,uint32_t * lineno)1426 static ZEND_COLD void get_filename_lineno(int type, const char **filename, uint32_t *lineno) {
1427 /* Obtain relevant filename and lineno */
1428 switch (type) {
1429 case E_CORE_ERROR:
1430 case E_CORE_WARNING:
1431 *filename = NULL;
1432 *lineno = 0;
1433 break;
1434 case E_PARSE:
1435 case E_COMPILE_ERROR:
1436 case E_COMPILE_WARNING:
1437 case E_ERROR:
1438 case E_NOTICE:
1439 case E_STRICT:
1440 case E_DEPRECATED:
1441 case E_WARNING:
1442 case E_USER_ERROR:
1443 case E_USER_WARNING:
1444 case E_USER_NOTICE:
1445 case E_USER_DEPRECATED:
1446 case E_RECOVERABLE_ERROR:
1447 if (zend_is_compiling()) {
1448 *filename = ZSTR_VAL(zend_get_compiled_filename());
1449 *lineno = zend_get_compiled_lineno();
1450 } else if (zend_is_executing()) {
1451 *filename = zend_get_executed_filename();
1452 if ((*filename)[0] == '[') { /* [no active file] */
1453 *filename = NULL;
1454 *lineno = 0;
1455 } else {
1456 *lineno = zend_get_executed_lineno();
1457 }
1458 } else {
1459 *filename = NULL;
1460 *lineno = 0;
1461 }
1462 break;
1463 default:
1464 *filename = NULL;
1465 *lineno = 0;
1466 break;
1467 }
1468 if (!*filename) {
1469 *filename = "Unknown";
1470 }
1471 }
1472
zend_error_at(int type,const char * filename,uint32_t lineno,const char * format,...)1473 ZEND_API ZEND_COLD void zend_error_at(
1474 int type, const char *filename, uint32_t lineno, const char *format, ...) {
1475 va_list args;
1476
1477 if (!filename) {
1478 uint32_t dummy_lineno;
1479 get_filename_lineno(type, &filename, &dummy_lineno);
1480 }
1481
1482 va_start(args, format);
1483 zend_error_va_list(type, filename, lineno, format, args);
1484 va_end(args);
1485 }
1486
zend_error(int type,const char * format,...)1487 ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) {
1488 const char *filename;
1489 uint32_t lineno;
1490 va_list args;
1491
1492 get_filename_lineno(type, &filename, &lineno);
1493 va_start(args, format);
1494 zend_error_va_list(type, filename, lineno, format, args);
1495 va_end(args);
1496 }
1497
zend_error_at_noreturn(int type,const char * filename,uint32_t lineno,const char * format,...)1498 ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_at_noreturn(
1499 int type, const char *filename, uint32_t lineno, const char *format, ...)
1500 {
1501 va_list args;
1502
1503 if (!filename) {
1504 uint32_t dummy_lineno;
1505 get_filename_lineno(type, &filename, &dummy_lineno);
1506 }
1507
1508 va_start(args, format);
1509 zend_error_va_list(type, filename, lineno, format, args);
1510 va_end(args);
1511 /* Should never reach this. */
1512 abort();
1513 }
1514 /* }}} */
1515
zend_error_noreturn(int type,const char * format,...)1516 ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_noreturn(int type, const char *format, ...)
1517 {
1518 const char *filename;
1519 uint32_t lineno;
1520 va_list args;
1521
1522 get_filename_lineno(type, &filename, &lineno);
1523 va_start(args, format);
1524 zend_error_va_list(type, filename, lineno, format, args);
1525 va_end(args);
1526 /* Should never reach this. */
1527 abort();
1528 }
1529 /* }}} */
1530
zend_throw_error(zend_class_entry * exception_ce,const char * format,...)1531 ZEND_API ZEND_COLD void zend_throw_error(zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
1532 {
1533 va_list va;
1534 char *message = NULL;
1535
1536 if (exception_ce) {
1537 if (!instanceof_function(exception_ce, zend_ce_error)) {
1538 zend_error(E_NOTICE, "Error exceptions must be derived from Error");
1539 exception_ce = zend_ce_error;
1540 }
1541 } else {
1542 exception_ce = zend_ce_error;
1543 }
1544
1545 /* Marker used to disable exception generation during preloading. */
1546 if (EG(exception) == (void*)(uintptr_t)-1) {
1547 return;
1548 }
1549
1550 va_start(va, format);
1551 zend_vspprintf(&message, 0, format, va);
1552
1553 //TODO: we can't convert compile-time errors to exceptions yet???
1554 if (EG(current_execute_data) && !CG(in_compilation)) {
1555 zend_throw_exception(exception_ce, message, 0);
1556 } else {
1557 zend_error(E_ERROR, "%s", message);
1558 }
1559
1560 efree(message);
1561 va_end(va);
1562 }
1563 /* }}} */
1564
zend_type_error(const char * format,...)1565 ZEND_API ZEND_COLD void zend_type_error(const char *format, ...) /* {{{ */
1566 {
1567 va_list va;
1568 char *message = NULL;
1569
1570 va_start(va, format);
1571 zend_vspprintf(&message, 0, format, va);
1572 zend_throw_exception(zend_ce_type_error, message, 0);
1573 efree(message);
1574 va_end(va);
1575 } /* }}} */
1576
zend_internal_type_error(zend_bool throw_exception,const char * format,...)1577 ZEND_API ZEND_COLD void zend_internal_type_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1578 {
1579 va_list va;
1580 char *message = NULL;
1581
1582 va_start(va, format);
1583 zend_vspprintf(&message, 0, format, va);
1584 if (throw_exception) {
1585 zend_throw_exception(zend_ce_type_error, message, 0);
1586 } else {
1587 zend_error(E_WARNING, "%s", message);
1588 }
1589 efree(message);
1590
1591 va_end(va);
1592 } /* }}} */
1593
zend_internal_argument_count_error(zend_bool throw_exception,const char * format,...)1594 ZEND_API ZEND_COLD void zend_internal_argument_count_error(zend_bool throw_exception, const char *format, ...) /* {{{ */
1595 {
1596 va_list va;
1597 char *message = NULL;
1598
1599 va_start(va, format);
1600 zend_vspprintf(&message, 0, format, va);
1601 if (throw_exception) {
1602 zend_throw_exception(zend_ce_argument_count_error, message, 0);
1603 } else {
1604 zend_error(E_WARNING, "%s", message);
1605 }
1606 efree(message);
1607
1608 va_end(va);
1609 } /* }}} */
1610
zend_output_debug_string(zend_bool trigger_break,const char * format,...)1611 ZEND_API ZEND_COLD void zend_output_debug_string(zend_bool trigger_break, const char *format, ...) /* {{{ */
1612 {
1613 #if ZEND_DEBUG
1614 va_list args;
1615
1616 va_start(args, format);
1617 # ifdef ZEND_WIN32
1618 {
1619 char output_buf[1024];
1620
1621 vsnprintf(output_buf, 1024, format, args);
1622 OutputDebugString(output_buf);
1623 OutputDebugString("\n");
1624 if (trigger_break && IsDebuggerPresent()) {
1625 DebugBreak();
1626 }
1627 }
1628 # else
1629 vfprintf(stderr, format, args);
1630 fprintf(stderr, "\n");
1631 # endif
1632 va_end(args);
1633 #endif
1634 }
1635 /* }}} */
1636
zend_user_exception_handler(void)1637 ZEND_API ZEND_COLD void zend_user_exception_handler(void) /* {{{ */
1638 {
1639 zval orig_user_exception_handler;
1640 zval params[1], retval2;
1641 zend_object *old_exception;
1642 old_exception = EG(exception);
1643 EG(exception) = NULL;
1644 ZVAL_OBJ(¶ms[0], old_exception);
1645 ZVAL_COPY_VALUE(&orig_user_exception_handler, &EG(user_exception_handler));
1646
1647 if (call_user_function(CG(function_table), NULL, &orig_user_exception_handler, &retval2, 1, params) == SUCCESS) {
1648 zval_ptr_dtor(&retval2);
1649 if (EG(exception)) {
1650 OBJ_RELEASE(EG(exception));
1651 EG(exception) = NULL;
1652 }
1653 OBJ_RELEASE(old_exception);
1654 } else {
1655 EG(exception) = old_exception;
1656 }
1657 } /* }}} */
1658
zend_execute_scripts(int type,zval * retval,int file_count,...)1659 ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...) /* {{{ */
1660 {
1661 va_list files;
1662 int i;
1663 zend_file_handle *file_handle;
1664 zend_op_array *op_array;
1665
1666 va_start(files, file_count);
1667 for (i = 0; i < file_count; i++) {
1668 file_handle = va_arg(files, zend_file_handle *);
1669 if (!file_handle) {
1670 continue;
1671 }
1672
1673 op_array = zend_compile_file(file_handle, type);
1674 if (file_handle->opened_path) {
1675 zend_hash_add_empty_element(&EG(included_files), file_handle->opened_path);
1676 }
1677 zend_destroy_file_handle(file_handle);
1678 if (op_array) {
1679 zend_execute(op_array, retval);
1680 zend_exception_restore();
1681 if (UNEXPECTED(EG(exception))) {
1682 if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1683 zend_user_exception_handler();
1684 }
1685 if (EG(exception)) {
1686 zend_exception_error(EG(exception), E_ERROR);
1687 }
1688 }
1689 destroy_op_array(op_array);
1690 efree_size(op_array, sizeof(zend_op_array));
1691 } else if (type==ZEND_REQUIRE) {
1692 va_end(files);
1693 return FAILURE;
1694 }
1695 }
1696 va_end(files);
1697
1698 return SUCCESS;
1699 }
1700 /* }}} */
1701
1702 #define COMPILED_STRING_DESCRIPTION_FORMAT "%s(%d) : %s"
1703
zend_make_compiled_string_description(const char * name)1704 ZEND_API char *zend_make_compiled_string_description(const char *name) /* {{{ */
1705 {
1706 const char *cur_filename;
1707 int cur_lineno;
1708 char *compiled_string_description;
1709
1710 if (zend_is_compiling()) {
1711 cur_filename = ZSTR_VAL(zend_get_compiled_filename());
1712 cur_lineno = zend_get_compiled_lineno();
1713 } else if (zend_is_executing()) {
1714 cur_filename = zend_get_executed_filename();
1715 cur_lineno = zend_get_executed_lineno();
1716 } else {
1717 cur_filename = "Unknown";
1718 cur_lineno = 0;
1719 }
1720
1721 zend_spprintf(&compiled_string_description, 0, COMPILED_STRING_DESCRIPTION_FORMAT, cur_filename, cur_lineno, name);
1722 return compiled_string_description;
1723 }
1724 /* }}} */
1725
free_estring(char ** str_p)1726 void free_estring(char **str_p) /* {{{ */
1727 {
1728 efree(*str_p);
1729 }
1730 /* }}} */
1731
zend_map_ptr_reset(void)1732 ZEND_API void zend_map_ptr_reset(void)
1733 {
1734 CG(map_ptr_last) = global_map_ptr_last;
1735 }
1736
zend_map_ptr_new(void)1737 ZEND_API void *zend_map_ptr_new(void)
1738 {
1739 void **ptr;
1740
1741 if (CG(map_ptr_last) >= CG(map_ptr_size)) {
1742 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
1743 // TODO: error ???
1744 ZEND_ASSERT(0);
1745 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
1746 /* Grow map_ptr table */
1747 CG(map_ptr_size) = ZEND_MM_ALIGNED_SIZE_EX(CG(map_ptr_last) + 1, 4096);
1748 CG(map_ptr_base) = perealloc(CG(map_ptr_base), CG(map_ptr_size) * sizeof(void*), 1);
1749 #else
1750 # error "Unknown ZEND_MAP_PTR_KIND"
1751 #endif
1752 }
1753 ptr = (void**)CG(map_ptr_base) + CG(map_ptr_last);
1754 *ptr = NULL;
1755 CG(map_ptr_last)++;
1756 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
1757 return ptr;
1758 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
1759 return ZEND_MAP_PTR_PTR2OFFSET(ptr);
1760 #else
1761 # error "Unknown ZEND_MAP_PTR_KIND"
1762 #endif
1763 }
1764
zend_map_ptr_extend(size_t last)1765 ZEND_API void zend_map_ptr_extend(size_t last)
1766 {
1767 if (last > CG(map_ptr_last)) {
1768 void **ptr;
1769
1770 if (last >= CG(map_ptr_size)) {
1771 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
1772 /* This may never happen */
1773 ZEND_ASSERT(0);
1774 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
1775 /* Grow map_ptr table */
1776 CG(map_ptr_size) = ZEND_MM_ALIGNED_SIZE_EX(last, 4096);
1777 CG(map_ptr_base) = perealloc(CG(map_ptr_base), CG(map_ptr_size) * sizeof(void*), 1);
1778 #else
1779 # error "Unknown ZEND_MAP_PTR_KIND"
1780 #endif
1781 }
1782 ptr = (void**)CG(map_ptr_base) + CG(map_ptr_last);
1783 memset(ptr, 0, (last - CG(map_ptr_last)) * sizeof(void*));
1784 CG(map_ptr_last) = last;
1785 }
1786 }
1787
