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 #include "zend_attributes.h"
36 #include "zend_observer.h"
37 #include "zend_fibers.h"
38 #include "zend_max_execution_timer.h"
39 #include "Optimizer/zend_optimizer.h"
40
41 static size_t global_map_ptr_last = 0;
42 static bool startup_done = false;
43
44 #ifdef ZTS
45 ZEND_API int compiler_globals_id;
46 ZEND_API int executor_globals_id;
47 ZEND_API size_t compiler_globals_offset;
48 ZEND_API size_t executor_globals_offset;
49 static HashTable *global_function_table = NULL;
50 static HashTable *global_class_table = NULL;
51 static HashTable *global_constants_table = NULL;
52 static HashTable *global_auto_globals_table = NULL;
53 static HashTable *global_persistent_list = NULL;
54 TSRMLS_MAIN_CACHE_DEFINE()
55 # define GLOBAL_FUNCTION_TABLE global_function_table
56 # define GLOBAL_CLASS_TABLE global_class_table
57 # define GLOBAL_CONSTANTS_TABLE global_constants_table
58 # define GLOBAL_AUTO_GLOBALS_TABLE global_auto_globals_table
59 #else
60 # define GLOBAL_FUNCTION_TABLE CG(function_table)
61 # define GLOBAL_CLASS_TABLE CG(class_table)
62 # define GLOBAL_AUTO_GLOBALS_TABLE CG(auto_globals)
63 # define GLOBAL_CONSTANTS_TABLE EG(zend_constants)
64 #endif
65
66 ZEND_API zend_utility_values zend_uv;
67 ZEND_API bool zend_dtrace_enabled;
68
69 /* version information */
70 static char *zend_version_info;
71 static uint32_t zend_version_info_length;
72 #define ZEND_CORE_VERSION_INFO "Zend Engine v" ZEND_VERSION ", Copyright (c) Zend Technologies\n"
73 #define PRINT_ZVAL_INDENT 4
74
75 /* true multithread-shared globals */
76 ZEND_API zend_class_entry *zend_standard_class_def = NULL;
77 ZEND_API size_t (*zend_printf)(const char *format, ...);
78 ZEND_API zend_write_func_t zend_write;
79 ZEND_API FILE *(*zend_fopen)(zend_string *filename, zend_string **opened_path);
80 ZEND_API zend_result (*zend_stream_open_function)(zend_file_handle *handle);
81 ZEND_API void (*zend_ticks_function)(int ticks);
82 ZEND_API void (*zend_interrupt_function)(zend_execute_data *execute_data);
83 ZEND_API void (*zend_error_cb)(int type, zend_string *error_filename, const uint32_t error_lineno, zend_string *message);
84 void (*zend_printf_to_smart_string)(smart_string *buf, const char *format, va_list ap);
85 void (*zend_printf_to_smart_str)(smart_str *buf, const char *format, va_list ap);
86 ZEND_API char *(*zend_getenv)(const char *name, size_t name_len);
87 ZEND_API zend_string *(*zend_resolve_path)(zend_string *filename);
88 ZEND_API zend_result (*zend_post_startup_cb)(void) = NULL;
89 ZEND_API void (*zend_post_shutdown_cb)(void) = NULL;
90
91 /* This callback must be signal handler safe! */
92 void (*zend_on_timeout)(int seconds);
93
94 static void (*zend_message_dispatcher_p)(zend_long message, const void *data);
95 static zval *(*zend_get_configuration_directive_p)(zend_string *name);
96
97 #if ZEND_RC_DEBUG
98 ZEND_API bool zend_rc_debug = 0;
99 #endif
100
ZEND_INI_MH(OnUpdateErrorReporting)101 static ZEND_INI_MH(OnUpdateErrorReporting) /* {{{ */
102 {
103 if (!new_value) {
104 EG(error_reporting) = E_ALL;
105 } else {
106 EG(error_reporting) = atoi(ZSTR_VAL(new_value));
107 }
108 return SUCCESS;
109 }
110 /* }}} */
111
ZEND_INI_MH(OnUpdateGCEnabled)112 static ZEND_INI_MH(OnUpdateGCEnabled) /* {{{ */
113 {
114 bool val;
115
116 val = zend_ini_parse_bool(new_value);
117 gc_enable(val);
118
119 return SUCCESS;
120 }
121 /* }}} */
122
ZEND_INI_DISP(zend_gc_enabled_displayer_cb)123 static ZEND_INI_DISP(zend_gc_enabled_displayer_cb) /* {{{ */
124 {
125 if (gc_enabled()) {
126 ZEND_PUTS("On");
127 } else {
128 ZEND_PUTS("Off");
129 }
130 }
131 /* }}} */
132
133
ZEND_INI_MH(OnUpdateScriptEncoding)134 static ZEND_INI_MH(OnUpdateScriptEncoding) /* {{{ */
135 {
136 if (!CG(multibyte)) {
137 return FAILURE;
138 }
139 if (!zend_multibyte_get_functions()) {
140 return SUCCESS;
141 }
142 return zend_multibyte_set_script_encoding_by_string(new_value ? ZSTR_VAL(new_value) : NULL, new_value ? ZSTR_LEN(new_value) : 0);
143 }
144 /* }}} */
145
ZEND_INI_MH(OnUpdateAssertions)146 static ZEND_INI_MH(OnUpdateAssertions) /* {{{ */
147 {
148 zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
149
150 zend_long val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
151
152 if (stage != ZEND_INI_STAGE_STARTUP &&
153 stage != ZEND_INI_STAGE_SHUTDOWN &&
154 *p != val &&
155 (*p < 0 || val < 0)) {
156 zend_error(E_WARNING, "zend.assertions may be completely enabled or disabled only in php.ini");
157 return FAILURE;
158 }
159
160 *p = val;
161 return SUCCESS;
162 }
163 /* }}} */
164
ZEND_INI_MH(OnSetExceptionStringParamMaxLen)165 static ZEND_INI_MH(OnSetExceptionStringParamMaxLen) /* {{{ */
166 {
167 zend_long i = ZEND_ATOL(ZSTR_VAL(new_value));
168 if (i >= 0 && i <= 1000000) {
169 EG(exception_string_param_max_len) = i;
170 return SUCCESS;
171 } else {
172 return FAILURE;
173 }
174 }
175 /* }}} */
176
ZEND_INI_MH(OnUpdateFiberStackSize)177 static ZEND_INI_MH(OnUpdateFiberStackSize) /* {{{ */
178 {
179 if (new_value) {
180 zend_long tmp = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
181 if (tmp < 0) {
182 zend_error(E_WARNING, "fiber.stack_size must be a positive number");
183 return FAILURE;
184 }
185 EG(fiber_stack_size) = tmp;
186 } else {
187 EG(fiber_stack_size) = ZEND_FIBER_DEFAULT_C_STACK_SIZE;
188 }
189 return SUCCESS;
190 }
191 /* }}} */
192
193 #if ZEND_DEBUG
194 # define SIGNAL_CHECK_DEFAULT "1"
195 #else
196 # define SIGNAL_CHECK_DEFAULT "0"
197 #endif
198
199 ZEND_INI_BEGIN()
200 ZEND_INI_ENTRY("error_reporting", NULL, ZEND_INI_ALL, OnUpdateErrorReporting)
201 STD_ZEND_INI_ENTRY("zend.assertions", "1", ZEND_INI_ALL, OnUpdateAssertions, assertions, zend_executor_globals, executor_globals)
202 ZEND_INI_ENTRY3_EX("zend.enable_gc", "1", ZEND_INI_ALL, OnUpdateGCEnabled, NULL, NULL, NULL, zend_gc_enabled_displayer_cb)
203 STD_ZEND_INI_BOOLEAN("zend.multibyte", "0", ZEND_INI_PERDIR, OnUpdateBool, multibyte, zend_compiler_globals, compiler_globals)
204 ZEND_INI_ENTRY("zend.script_encoding", NULL, ZEND_INI_ALL, OnUpdateScriptEncoding)
205 STD_ZEND_INI_BOOLEAN("zend.detect_unicode", "1", ZEND_INI_ALL, OnUpdateBool, detect_unicode, zend_compiler_globals, compiler_globals)
206 #ifdef ZEND_SIGNALS
207 STD_ZEND_INI_BOOLEAN("zend.signal_check", SIGNAL_CHECK_DEFAULT, ZEND_INI_SYSTEM, OnUpdateBool, check, zend_signal_globals_t, zend_signal_globals)
208 #endif
209 STD_ZEND_INI_BOOLEAN("zend.exception_ignore_args", "0", ZEND_INI_ALL, OnUpdateBool, exception_ignore_args, zend_executor_globals, executor_globals)
210 STD_ZEND_INI_ENTRY("zend.exception_string_param_max_len", "15", ZEND_INI_ALL, OnSetExceptionStringParamMaxLen, exception_string_param_max_len, zend_executor_globals, executor_globals)
211 STD_ZEND_INI_ENTRY("fiber.stack_size", NULL, ZEND_INI_ALL, OnUpdateFiberStackSize, fiber_stack_size, zend_executor_globals, executor_globals)
212
ZEND_INI_END()213 ZEND_INI_END()
214
215 ZEND_API size_t zend_vspprintf(char **pbuf, size_t max_len, const char *format, va_list ap) /* {{{ */
216 {
217 smart_string buf = {0};
218
219 /* since there are places where (v)spprintf called without checking for null,
220 a bit of defensive coding here */
221 if (!pbuf) {
222 return 0;
223 }
224
225 zend_printf_to_smart_string(&buf, format, ap);
226
227 if (max_len && buf.len > max_len) {
228 buf.len = max_len;
229 }
230
231 smart_string_0(&buf);
232
233 if (buf.c) {
234 *pbuf = buf.c;
235 return buf.len;
236 } else {
237 *pbuf = estrndup("", 0);
238 return 0;
239 }
240 }
241 /* }}} */
242
zend_spprintf(char ** message,size_t max_len,const char * format,...)243 ZEND_API size_t zend_spprintf(char **message, size_t max_len, const char *format, ...) /* {{{ */
244 {
245 va_list arg;
246 size_t len;
247
248 va_start(arg, format);
249 len = zend_vspprintf(message, max_len, format, arg);
250 va_end(arg);
251 return len;
252 }
253 /* }}} */
254
zend_spprintf_unchecked(char ** message,size_t max_len,const char * format,...)255 ZEND_API size_t zend_spprintf_unchecked(char **message, size_t max_len, const char *format, ...) /* {{{ */
256 {
257 va_list arg;
258 size_t len;
259
260 va_start(arg, format);
261 len = zend_vspprintf(message, max_len, format, arg);
262 va_end(arg);
263 return len;
264 }
265 /* }}} */
266
zend_vstrpprintf(size_t max_len,const char * format,va_list ap)267 ZEND_API zend_string *zend_vstrpprintf(size_t max_len, const char *format, va_list ap) /* {{{ */
268 {
269 smart_str buf = {0};
270
271 zend_printf_to_smart_str(&buf, format, ap);
272
273 if (!buf.s) {
274 return ZSTR_EMPTY_ALLOC();
275 }
276
277 if (max_len && ZSTR_LEN(buf.s) > max_len) {
278 ZSTR_LEN(buf.s) = max_len;
279 }
280
281 smart_str_0(&buf);
282 return buf.s;
283 }
284 /* }}} */
285
zend_strpprintf(size_t max_len,const char * format,...)286 ZEND_API zend_string *zend_strpprintf(size_t max_len, const char *format, ...) /* {{{ */
287 {
288 va_list arg;
289 zend_string *str;
290
291 va_start(arg, format);
292 str = zend_vstrpprintf(max_len, format, arg);
293 va_end(arg);
294 return str;
295 }
296 /* }}} */
297
zend_strpprintf_unchecked(size_t max_len,const char * format,...)298 ZEND_API zend_string *zend_strpprintf_unchecked(size_t max_len, const char *format, ...) /* {{{ */
299 {
300 va_list arg;
301 zend_string *str;
302
303 va_start(arg, format);
304 str = zend_vstrpprintf(max_len, format, arg);
305 va_end(arg);
306 return str;
307 }
308 /* }}} */
309
310 static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent);
311
print_hash(smart_str * buf,HashTable * ht,int indent,bool is_object)312 static void print_hash(smart_str *buf, HashTable *ht, int indent, bool is_object) /* {{{ */
313 {
314 zval *tmp;
315 zend_string *string_key;
316 zend_ulong num_key;
317 int i;
318
319 for (i = 0; i < indent; i++) {
320 smart_str_appendc(buf, ' ');
321 }
322 smart_str_appends(buf, "(\n");
323 indent += PRINT_ZVAL_INDENT;
324 ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
325 for (i = 0; i < indent; i++) {
326 smart_str_appendc(buf, ' ');
327 }
328 smart_str_appendc(buf, '[');
329 if (string_key) {
330 if (is_object) {
331 const char *prop_name, *class_name;
332 size_t prop_len;
333 int mangled = zend_unmangle_property_name_ex(string_key, &class_name, &prop_name, &prop_len);
334
335 smart_str_appendl(buf, prop_name, prop_len);
336 if (class_name && mangled == SUCCESS) {
337 if (class_name[0] == '*') {
338 smart_str_appends(buf, ":protected");
339 } else {
340 smart_str_appends(buf, ":");
341 smart_str_appends(buf, class_name);
342 smart_str_appends(buf, ":private");
343 }
344 }
345 } else {
346 smart_str_append(buf, string_key);
347 }
348 } else {
349 smart_str_append_long(buf, num_key);
350 }
351 smart_str_appends(buf, "] => ");
352 zend_print_zval_r_to_buf(buf, tmp, indent+PRINT_ZVAL_INDENT);
353 smart_str_appends(buf, "\n");
354 } ZEND_HASH_FOREACH_END();
355 indent -= PRINT_ZVAL_INDENT;
356 for (i = 0; i < indent; i++) {
357 smart_str_appendc(buf, ' ');
358 }
359 smart_str_appends(buf, ")\n");
360 }
361 /* }}} */
362
print_flat_hash(smart_str * buf,HashTable * ht)363 static void print_flat_hash(smart_str *buf, HashTable *ht) /* {{{ */
364 {
365 zval *tmp;
366 zend_string *string_key;
367 zend_ulong num_key;
368 int i = 0;
369
370 ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
371 if (i++ > 0) {
372 smart_str_appendc(buf, ',');
373 }
374 smart_str_appendc(buf, '[');
375 if (string_key) {
376 smart_str_append(buf, string_key);
377 } else {
378 smart_str_append_unsigned(buf, num_key);
379 }
380 smart_str_appends(buf, "] => ");
381 zend_print_flat_zval_r_to_buf(buf, tmp);
382 } ZEND_HASH_FOREACH_END();
383 }
384 /* }}} */
385
zend_make_printable_zval(zval * expr,zval * expr_copy)386 ZEND_API bool zend_make_printable_zval(zval *expr, zval *expr_copy) /* {{{ */
387 {
388 if (Z_TYPE_P(expr) == IS_STRING) {
389 return 0;
390 } else {
391 ZVAL_STR(expr_copy, zval_get_string_func(expr));
392 return 1;
393 }
394 }
395 /* }}} */
396
zend_print_zval(zval * expr,int indent)397 ZEND_API size_t zend_print_zval(zval *expr, int indent) /* {{{ */
398 {
399 zend_string *tmp_str;
400 zend_string *str = zval_get_tmp_string(expr, &tmp_str);
401 size_t len = ZSTR_LEN(str);
402
403 if (len != 0) {
404 zend_write(ZSTR_VAL(str), len);
405 }
406
407 zend_tmp_string_release(tmp_str);
408 return len;
409 }
410 /* }}} */
411
zend_print_flat_zval_r_to_buf(smart_str * buf,zval * expr)412 void zend_print_flat_zval_r_to_buf(smart_str *buf, zval *expr) /* {{{ */
413 {
414 switch (Z_TYPE_P(expr)) {
415 case IS_ARRAY:
416 smart_str_appends(buf, "Array (");
417 if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
418 if (GC_IS_RECURSIVE(Z_ARRVAL_P(expr))) {
419 smart_str_appends(buf, " *RECURSION*");
420 return;
421 }
422 GC_PROTECT_RECURSION(Z_ARRVAL_P(expr));
423 }
424 print_flat_hash(buf, Z_ARRVAL_P(expr));
425 smart_str_appendc(buf, ')');
426 GC_TRY_UNPROTECT_RECURSION(Z_ARRVAL_P(expr));
427 break;
428 case IS_OBJECT:
429 {
430 HashTable *properties;
431 zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
432 smart_str_append(buf, class_name);
433 smart_str_appends(buf, " Object (");
434 zend_string_release_ex(class_name, 0);
435
436 if (GC_IS_RECURSIVE(Z_COUNTED_P(expr))) {
437 smart_str_appends(buf, " *RECURSION*");
438 return;
439 }
440
441 properties = Z_OBJPROP_P(expr);
442 if (properties) {
443 GC_PROTECT_RECURSION(Z_OBJ_P(expr));
444 print_flat_hash(buf, properties);
445 GC_UNPROTECT_RECURSION(Z_OBJ_P(expr));
446 }
447 smart_str_appendc(buf, ')');
448 break;
449 }
450 case IS_REFERENCE:
451 zend_print_flat_zval_r_to_buf(buf, Z_REFVAL_P(expr));
452 break;
453 case IS_STRING:
454 smart_str_append(buf, Z_STR_P(expr));
455 break;
456 default:
457 {
458 zend_string *str = zval_get_string_func(expr);
459 smart_str_append(buf, str);
460 zend_string_release_ex(str, 0);
461 break;
462 }
463 }
464 }
465 /* }}} */
466
zend_print_flat_zval_r(zval * expr)467 ZEND_API void zend_print_flat_zval_r(zval *expr)
468 {
469 smart_str buf = {0};
470 zend_print_flat_zval_r_to_buf(&buf, expr);
471 smart_str_0(&buf);
472 zend_write(ZSTR_VAL(buf.s), ZSTR_LEN(buf.s));
473 smart_str_free(&buf);
474 }
475
zend_print_zval_r_to_buf(smart_str * buf,zval * expr,int indent)476 static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent) /* {{{ */
477 {
478 switch (Z_TYPE_P(expr)) {
479 case IS_ARRAY:
480 smart_str_appends(buf, "Array\n");
481 if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
482 if (GC_IS_RECURSIVE(Z_ARRVAL_P(expr))) {
483 smart_str_appends(buf, " *RECURSION*");
484 return;
485 }
486 GC_PROTECT_RECURSION(Z_ARRVAL_P(expr));
487 }
488 print_hash(buf, Z_ARRVAL_P(expr), indent, 0);
489 GC_TRY_UNPROTECT_RECURSION(Z_ARRVAL_P(expr));
490 break;
491 case IS_OBJECT:
492 {
493 HashTable *properties;
494
495 zend_object *zobj = Z_OBJ_P(expr);
496 zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(zobj);
497 smart_str_appends(buf, ZSTR_VAL(class_name));
498 zend_string_release_ex(class_name, 0);
499
500 if (!(zobj->ce->ce_flags & ZEND_ACC_ENUM)) {
501 smart_str_appends(buf, " Object\n");
502 } else {
503 smart_str_appends(buf, " Enum");
504 if (zobj->ce->enum_backing_type != IS_UNDEF) {
505 smart_str_appendc(buf, ':');
506 smart_str_appends(buf, zend_get_type_by_const(zobj->ce->enum_backing_type));
507 }
508 smart_str_appendc(buf, '\n');
509 }
510
511 if (GC_IS_RECURSIVE(Z_OBJ_P(expr))) {
512 smart_str_appends(buf, " *RECURSION*");
513 return;
514 }
515
516 if ((properties = zend_get_properties_for(expr, ZEND_PROP_PURPOSE_DEBUG)) == NULL) {
517 break;
518 }
519
520 GC_PROTECT_RECURSION(Z_OBJ_P(expr));
521 print_hash(buf, properties, indent, 1);
522 GC_UNPROTECT_RECURSION(Z_OBJ_P(expr));
523
524 zend_release_properties(properties);
525 break;
526 }
527 case IS_LONG:
528 smart_str_append_long(buf, Z_LVAL_P(expr));
529 break;
530 case IS_REFERENCE:
531 zend_print_zval_r_to_buf(buf, Z_REFVAL_P(expr), indent);
532 break;
533 case IS_STRING:
534 smart_str_append(buf, Z_STR_P(expr));
535 break;
536 default:
537 {
538 zend_string *str = zval_get_string_func(expr);
539 smart_str_append(buf, str);
540 zend_string_release_ex(str, 0);
541 }
542 break;
543 }
544 }
545 /* }}} */
546
zend_print_zval_r_to_str(zval * expr,int indent)547 ZEND_API zend_string *zend_print_zval_r_to_str(zval *expr, int indent) /* {{{ */
548 {
549 smart_str buf = {0};
550 zend_print_zval_r_to_buf(&buf, expr, indent);
551 smart_str_0(&buf);
552 return buf.s;
553 }
554 /* }}} */
555
zend_print_zval_r(zval * expr,int indent)556 ZEND_API void zend_print_zval_r(zval *expr, int indent) /* {{{ */
557 {
558 zend_string *str = zend_print_zval_r_to_str(expr, indent);
559 zend_write(ZSTR_VAL(str), ZSTR_LEN(str));
560 zend_string_release_ex(str, 0);
561 }
562 /* }}} */
563
zend_fopen_wrapper(zend_string * filename,zend_string ** opened_path)564 static FILE *zend_fopen_wrapper(zend_string *filename, zend_string **opened_path) /* {{{ */
565 {
566 if (opened_path) {
567 *opened_path = zend_string_copy(filename);
568 }
569 return fopen(ZSTR_VAL(filename), "rb");
570 }
571 /* }}} */
572
573 #ifdef ZTS
574 static bool short_tags_default = 1;
575 static uint32_t compiler_options_default = ZEND_COMPILE_DEFAULT;
576 #else
577 # define short_tags_default 1
578 # define compiler_options_default ZEND_COMPILE_DEFAULT
579 #endif
580
zend_set_default_compile_time_values(void)581 static void zend_set_default_compile_time_values(void) /* {{{ */
582 {
583 /* default compile-time values */
584 CG(short_tags) = short_tags_default;
585 CG(compiler_options) = compiler_options_default;
586
587 CG(rtd_key_counter) = 0;
588 }
589 /* }}} */
590
591 #ifdef ZEND_WIN32
zend_get_windows_version_info(OSVERSIONINFOEX * osvi)592 static void zend_get_windows_version_info(OSVERSIONINFOEX *osvi) /* {{{ */
593 {
594 ZeroMemory(osvi, sizeof(OSVERSIONINFOEX));
595 osvi->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
596 if(!GetVersionEx((OSVERSIONINFO *) osvi)) {
597 ZEND_UNREACHABLE(); /* Should not happen as sizeof is used. */
598 }
599 }
600 /* }}} */
601 #endif
602
zend_init_exception_op(void)603 static void zend_init_exception_op(void) /* {{{ */
604 {
605 memset(EG(exception_op), 0, sizeof(EG(exception_op)));
606 EG(exception_op)[0].opcode = ZEND_HANDLE_EXCEPTION;
607 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op));
608 EG(exception_op)[1].opcode = ZEND_HANDLE_EXCEPTION;
609 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+1);
610 EG(exception_op)[2].opcode = ZEND_HANDLE_EXCEPTION;
611 ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+2);
612 }
613 /* }}} */
614
zend_init_call_trampoline_op(void)615 static void zend_init_call_trampoline_op(void) /* {{{ */
616 {
617 memset(&EG(call_trampoline_op), 0, sizeof(EG(call_trampoline_op)));
618 EG(call_trampoline_op).opcode = ZEND_CALL_TRAMPOLINE;
619 ZEND_VM_SET_OPCODE_HANDLER(&EG(call_trampoline_op));
620 }
621 /* }}} */
622
auto_global_dtor(zval * zv)623 static void auto_global_dtor(zval *zv) /* {{{ */
624 {
625 free(Z_PTR_P(zv));
626 }
627 /* }}} */
628
629 #ifdef ZTS
function_copy_ctor(zval * zv)630 static void function_copy_ctor(zval *zv) /* {{{ */
631 {
632 zend_function *old_func = Z_FUNC_P(zv);
633 zend_function *func;
634
635 if (old_func->type == ZEND_USER_FUNCTION) {
636 ZEND_ASSERT(old_func->op_array.fn_flags & ZEND_ACC_IMMUTABLE);
637 return;
638 }
639 func = pemalloc(sizeof(zend_internal_function), 1);
640 Z_FUNC_P(zv) = func;
641 memcpy(func, old_func, sizeof(zend_internal_function));
642 function_add_ref(func);
643 if ((old_func->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS))
644 && old_func->common.arg_info) {
645 uint32_t i;
646 uint32_t num_args = old_func->common.num_args + 1;
647 zend_arg_info *arg_info = old_func->common.arg_info - 1;
648 zend_arg_info *new_arg_info;
649
650 if (old_func->common.fn_flags & ZEND_ACC_VARIADIC) {
651 num_args++;
652 }
653 new_arg_info = pemalloc(sizeof(zend_arg_info) * num_args, 1);
654 memcpy(new_arg_info, arg_info, sizeof(zend_arg_info) * num_args);
655 for (i = 0 ; i < num_args; i++) {
656 if (ZEND_TYPE_HAS_LIST(arg_info[i].type)) {
657 zend_type_list *old_list = ZEND_TYPE_LIST(arg_info[i].type);
658 zend_type_list *new_list = pemalloc(ZEND_TYPE_LIST_SIZE(old_list->num_types), 1);
659 memcpy(new_list, old_list, ZEND_TYPE_LIST_SIZE(old_list->num_types));
660 ZEND_TYPE_SET_PTR(new_arg_info[i].type, new_list);
661
662 zend_type *list_type;
663 ZEND_TYPE_LIST_FOREACH(new_list, list_type) {
664 zend_string *name = zend_string_dup(ZEND_TYPE_NAME(*list_type), 1);
665 ZEND_TYPE_SET_PTR(*list_type, name);
666 } ZEND_TYPE_LIST_FOREACH_END();
667 } else if (ZEND_TYPE_HAS_NAME(arg_info[i].type)) {
668 zend_string *name = zend_string_dup(ZEND_TYPE_NAME(arg_info[i].type), 1);
669 ZEND_TYPE_SET_PTR(new_arg_info[i].type, name);
670 }
671 }
672 func->common.arg_info = new_arg_info + 1;
673 }
674 if (old_func->common.attributes) {
675 zend_attribute *old_attr;
676
677 func->common.attributes = NULL;
678
679 ZEND_HASH_FOREACH_PTR(old_func->common.attributes, old_attr) {
680 uint32_t i;
681 zend_attribute *attr;
682
683 attr = zend_add_attribute(&func->common.attributes, old_attr->name, old_attr->argc, old_attr->flags, old_attr->offset, old_attr->lineno);
684
685 for (i = 0 ; i < old_attr->argc; i++) {
686 ZVAL_DUP(&attr->args[i].value, &old_attr->args[i].value);
687 }
688 } ZEND_HASH_FOREACH_END();
689 }
690 }
691 /* }}} */
692
auto_global_copy_ctor(zval * zv)693 static void auto_global_copy_ctor(zval *zv) /* {{{ */
694 {
695 zend_auto_global *old_ag = (zend_auto_global *) Z_PTR_P(zv);
696 zend_auto_global *new_ag = pemalloc(sizeof(zend_auto_global), 1);
697
698 new_ag->name = old_ag->name;
699 new_ag->auto_global_callback = old_ag->auto_global_callback;
700 new_ag->jit = old_ag->jit;
701
702 Z_PTR_P(zv) = new_ag;
703 }
704 /* }}} */
705
compiler_globals_ctor(zend_compiler_globals * compiler_globals)706 static void compiler_globals_ctor(zend_compiler_globals *compiler_globals) /* {{{ */
707 {
708 compiler_globals->compiled_filename = NULL;
709
710 compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
711 zend_hash_init(compiler_globals->function_table, 1024, NULL, ZEND_FUNCTION_DTOR, 1);
712 zend_hash_copy(compiler_globals->function_table, global_function_table, function_copy_ctor);
713
714 compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
715 zend_hash_init(compiler_globals->class_table, 64, NULL, ZEND_CLASS_DTOR, 1);
716 zend_hash_copy(compiler_globals->class_table, global_class_table, zend_class_add_ref);
717
718 zend_set_default_compile_time_values();
719
720 compiler_globals->auto_globals = (HashTable *) malloc(sizeof(HashTable));
721 zend_hash_init(compiler_globals->auto_globals, 8, NULL, auto_global_dtor, 1);
722 zend_hash_copy(compiler_globals->auto_globals, global_auto_globals_table, auto_global_copy_ctor);
723
724 compiler_globals->script_encoding_list = NULL;
725 compiler_globals->current_linking_class = NULL;
726
727 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
728 /* Map region is going to be created and resized at run-time. */
729 compiler_globals->map_ptr_real_base = NULL;
730 compiler_globals->map_ptr_base = ZEND_MAP_PTR_BIASED_BASE(NULL);
731 compiler_globals->map_ptr_size = 0;
732 compiler_globals->map_ptr_last = global_map_ptr_last;
733 if (compiler_globals->map_ptr_last) {
734 /* Allocate map_ptr table */
735 compiler_globals->map_ptr_size = ZEND_MM_ALIGNED_SIZE_EX(compiler_globals->map_ptr_last, 4096);
736 void *base = pemalloc(compiler_globals->map_ptr_size * sizeof(void*), 1);
737 compiler_globals->map_ptr_real_base = base;
738 compiler_globals->map_ptr_base = ZEND_MAP_PTR_BIASED_BASE(base);
739 memset(base, 0, compiler_globals->map_ptr_last * sizeof(void*));
740 }
741 #else
742 # error "Unknown ZEND_MAP_PTR_KIND"
743 #endif
744 }
745 /* }}} */
746
compiler_globals_dtor(zend_compiler_globals * compiler_globals)747 static void compiler_globals_dtor(zend_compiler_globals *compiler_globals) /* {{{ */
748 {
749 if (compiler_globals->function_table != GLOBAL_FUNCTION_TABLE) {
750 zend_hash_destroy(compiler_globals->function_table);
751 free(compiler_globals->function_table);
752 }
753 if (compiler_globals->class_table != GLOBAL_CLASS_TABLE) {
754 /* Child classes may reuse structures from parent classes, so destroy in reverse order. */
755 zend_hash_graceful_reverse_destroy(compiler_globals->class_table);
756 free(compiler_globals->class_table);
757 }
758 if (compiler_globals->auto_globals != GLOBAL_AUTO_GLOBALS_TABLE) {
759 zend_hash_destroy(compiler_globals->auto_globals);
760 free(compiler_globals->auto_globals);
761 }
762 if (compiler_globals->script_encoding_list) {
763 pefree((char*)compiler_globals->script_encoding_list, 1);
764 }
765 if (compiler_globals->map_ptr_real_base) {
766 free(compiler_globals->map_ptr_real_base);
767 compiler_globals->map_ptr_real_base = NULL;
768 compiler_globals->map_ptr_base = ZEND_MAP_PTR_BIASED_BASE(NULL);
769 compiler_globals->map_ptr_size = 0;
770 }
771 }
772 /* }}} */
773
executor_globals_ctor(zend_executor_globals * executor_globals)774 static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
775 {
776 zend_startup_constants();
777 zend_copy_constants(executor_globals->zend_constants, GLOBAL_CONSTANTS_TABLE);
778 zend_init_rsrc_plist();
779 zend_init_exception_op();
780 zend_init_call_trampoline_op();
781 memset(&executor_globals->trampoline, 0, sizeof(zend_op_array));
782 executor_globals->capture_warnings_during_sccp = 0;
783 ZVAL_UNDEF(&executor_globals->user_error_handler);
784 ZVAL_UNDEF(&executor_globals->user_exception_handler);
785 executor_globals->in_autoload = NULL;
786 executor_globals->current_execute_data = NULL;
787 executor_globals->current_module = NULL;
788 executor_globals->exit_status = 0;
789 #if XPFPA_HAVE_CW
790 executor_globals->saved_fpu_cw = 0;
791 #endif
792 executor_globals->saved_fpu_cw_ptr = NULL;
793 executor_globals->active = 0;
794 executor_globals->bailout = NULL;
795 executor_globals->error_handling = EH_NORMAL;
796 executor_globals->exception_class = NULL;
797 executor_globals->exception = NULL;
798 executor_globals->objects_store.object_buckets = NULL;
799 executor_globals->current_fiber_context = NULL;
800 executor_globals->main_fiber_context = NULL;
801 executor_globals->active_fiber = NULL;
802 #ifdef ZEND_WIN32
803 zend_get_windows_version_info(&executor_globals->windows_version_info);
804 #endif
805 executor_globals->flags = EG_FLAGS_INITIAL;
806 executor_globals->record_errors = false;
807 executor_globals->num_errors = 0;
808 executor_globals->errors = NULL;
809 #ifdef ZEND_MAX_EXECUTION_TIMERS
810 executor_globals->pid = 0;
811 executor_globals->oldact = (struct sigaction){0};
812 #endif
813 }
814 /* }}} */
815
executor_globals_dtor(zend_executor_globals * executor_globals)816 static void executor_globals_dtor(zend_executor_globals *executor_globals) /* {{{ */
817 {
818 zend_ini_dtor(executor_globals->ini_directives);
819
820 if (&executor_globals->persistent_list != global_persistent_list) {
821 zend_destroy_rsrc_list(&executor_globals->persistent_list);
822 }
823 if (executor_globals->zend_constants != GLOBAL_CONSTANTS_TABLE) {
824 zend_hash_destroy(executor_globals->zend_constants);
825 free(executor_globals->zend_constants);
826 }
827 }
828 /* }}} */
829
zend_new_thread_end_handler(THREAD_T thread_id)830 static void zend_new_thread_end_handler(THREAD_T thread_id) /* {{{ */
831 {
832 zend_copy_ini_directives();
833 zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP);
834 zend_max_execution_timer_init();
835 }
836 /* }}} */
837 #endif
838
839 #if defined(__FreeBSD__) || defined(__DragonFly__)
840 /* FreeBSD and DragonFly floating point precision fix */
841 #include <floatingpoint.h>
842 #endif
843
ini_scanner_globals_ctor(zend_ini_scanner_globals * scanner_globals_p)844 static void ini_scanner_globals_ctor(zend_ini_scanner_globals *scanner_globals_p) /* {{{ */
845 {
846 memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
847 }
848 /* }}} */
849
php_scanner_globals_ctor(zend_php_scanner_globals * scanner_globals_p)850 static void php_scanner_globals_ctor(zend_php_scanner_globals *scanner_globals_p) /* {{{ */
851 {
852 memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
853 }
854 /* }}} */
855
module_destructor_zval(zval * zv)856 static void module_destructor_zval(zval *zv) /* {{{ */
857 {
858 zend_module_entry *module = (zend_module_entry*)Z_PTR_P(zv);
859
860 module_destructor(module);
861 free(module);
862 }
863 /* }}} */
864
php_auto_globals_create_globals(zend_string * name)865 static bool php_auto_globals_create_globals(zend_string *name) /* {{{ */
866 {
867 /* While we keep registering $GLOBALS as an auto-global, we do not create an
868 * actual variable for it. Access to it handled specially by the compiler. */
869 return 0;
870 }
871 /* }}} */
872
zend_startup(zend_utility_functions * utility_functions)873 void zend_startup(zend_utility_functions *utility_functions) /* {{{ */
874 {
875 #ifdef ZTS
876 zend_compiler_globals *compiler_globals;
877 zend_executor_globals *executor_globals;
878 extern ZEND_API ts_rsrc_id ini_scanner_globals_id;
879 extern ZEND_API ts_rsrc_id language_scanner_globals_id;
880 #else
881 extern zend_ini_scanner_globals ini_scanner_globals;
882 extern zend_php_scanner_globals language_scanner_globals;
883 #endif
884
885 zend_cpu_startup();
886
887 #ifdef ZEND_WIN32
888 php_win32_cp_set_by_id(65001);
889 #endif
890
891 start_memory_manager();
892
893 virtual_cwd_startup(); /* Could use shutdown to free the main cwd but it would just slow it down for CGI */
894
895 #if defined(__FreeBSD__) || defined(__DragonFly__)
896 /* FreeBSD and DragonFly floating point precision fix */
897 fpsetmask(0);
898 #endif
899
900 zend_startup_strtod();
901 zend_startup_extensions_mechanism();
902
903 /* Set up utility functions and values */
904 zend_error_cb = utility_functions->error_function;
905 zend_printf = utility_functions->printf_function;
906 zend_write = utility_functions->write_function;
907 zend_fopen = utility_functions->fopen_function;
908 if (!zend_fopen) {
909 zend_fopen = zend_fopen_wrapper;
910 }
911 zend_stream_open_function = utility_functions->stream_open_function;
912 zend_message_dispatcher_p = utility_functions->message_handler;
913 zend_get_configuration_directive_p = utility_functions->get_configuration_directive;
914 zend_ticks_function = utility_functions->ticks_function;
915 zend_on_timeout = utility_functions->on_timeout;
916 zend_printf_to_smart_string = utility_functions->printf_to_smart_string_function;
917 zend_printf_to_smart_str = utility_functions->printf_to_smart_str_function;
918 zend_getenv = utility_functions->getenv_function;
919 zend_resolve_path = utility_functions->resolve_path_function;
920
921 zend_interrupt_function = NULL;
922
923 #ifdef HAVE_DTRACE
924 /* build with dtrace support */
925 {
926 char *tmp = getenv("USE_ZEND_DTRACE");
927
928 if (tmp && ZEND_ATOL(tmp)) {
929 zend_dtrace_enabled = 1;
930 zend_compile_file = dtrace_compile_file;
931 zend_execute_ex = dtrace_execute_ex;
932 zend_execute_internal = dtrace_execute_internal;
933
934 zend_observer_error_register(dtrace_error_notify_cb);
935 } else {
936 zend_compile_file = compile_file;
937 zend_execute_ex = execute_ex;
938 zend_execute_internal = NULL;
939 }
940 }
941 #else
942 zend_compile_file = compile_file;
943 zend_execute_ex = execute_ex;
944 zend_execute_internal = NULL;
945 #endif /* HAVE_DTRACE */
946 zend_compile_string = compile_string;
947 zend_throw_exception_hook = NULL;
948
949 /* Set up the default garbage collection implementation. */
950 gc_collect_cycles = zend_gc_collect_cycles;
951
952 zend_vm_init();
953
954 /* set up version */
955 zend_version_info = strdup(ZEND_CORE_VERSION_INFO);
956 zend_version_info_length = sizeof(ZEND_CORE_VERSION_INFO) - 1;
957
958 GLOBAL_FUNCTION_TABLE = (HashTable *) malloc(sizeof(HashTable));
959 GLOBAL_CLASS_TABLE = (HashTable *) malloc(sizeof(HashTable));
960 GLOBAL_AUTO_GLOBALS_TABLE = (HashTable *) malloc(sizeof(HashTable));
961 GLOBAL_CONSTANTS_TABLE = (HashTable *) malloc(sizeof(HashTable));
962
963 zend_hash_init(GLOBAL_FUNCTION_TABLE, 1024, NULL, ZEND_FUNCTION_DTOR, 1);
964 zend_hash_init(GLOBAL_CLASS_TABLE, 64, NULL, ZEND_CLASS_DTOR, 1);
965 zend_hash_init(GLOBAL_AUTO_GLOBALS_TABLE, 8, NULL, auto_global_dtor, 1);
966 zend_hash_init(GLOBAL_CONSTANTS_TABLE, 128, NULL, ZEND_CONSTANT_DTOR, 1);
967
968 zend_hash_init(&module_registry, 32, NULL, module_destructor_zval, 1);
969 zend_init_rsrc_list_dtors();
970
971 #ifdef ZTS
972 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);
973 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);
974 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);
975 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);
976 compiler_globals = ts_resource(compiler_globals_id);
977 executor_globals = ts_resource(executor_globals_id);
978
979 compiler_globals_dtor(compiler_globals);
980 compiler_globals->in_compilation = 0;
981 compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
982 compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
983
984 *compiler_globals->function_table = *GLOBAL_FUNCTION_TABLE;
985 *compiler_globals->class_table = *GLOBAL_CLASS_TABLE;
986 compiler_globals->auto_globals = GLOBAL_AUTO_GLOBALS_TABLE;
987
988 zend_hash_destroy(executor_globals->zend_constants);
989 *executor_globals->zend_constants = *GLOBAL_CONSTANTS_TABLE;
990 #else
991 ini_scanner_globals_ctor(&ini_scanner_globals);
992 php_scanner_globals_ctor(&language_scanner_globals);
993 zend_set_default_compile_time_values();
994 #ifdef ZEND_WIN32
995 zend_get_windows_version_info(&EG(windows_version_info));
996 #endif
997 # if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
998 /* Create a map region, used for indirect pointers from shared to
999 * process memory. It's allocated once and never resized.
1000 * All processes must map it into the same address space.
1001 */
1002 CG(map_ptr_size) = 1024 * 1024; // TODO: initial size ???
1003 CG(map_ptr_last) = 0;
1004 CG(map_ptr_real_base) = pemalloc(CG(map_ptr_size) * sizeof(void*), 1);
1005 CG(map_ptr_base) = ZEND_MAP_PTR_BIASED_BASE(CG(map_ptr_real_base));
1006 # elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
1007 /* Map region is going to be created and resized at run-time. */
1008 CG(map_ptr_real_base) = NULL;
1009 CG(map_ptr_base) = ZEND_MAP_PTR_BIASED_BASE(NULL);
1010 CG(map_ptr_size) = 0;
1011 CG(map_ptr_last) = 0;
1012 # else
1013 # error "Unknown ZEND_MAP_PTR_KIND"
1014 # endif
1015 #endif
1016 EG(error_reporting) = E_ALL & ~E_NOTICE;
1017
1018 zend_interned_strings_init();
1019 zend_startup_builtin_functions();
1020 zend_register_standard_constants();
1021 zend_register_auto_global(zend_string_init_interned("GLOBALS", sizeof("GLOBALS") - 1, 1), 1, php_auto_globals_create_globals);
1022
1023 #ifndef ZTS
1024 zend_init_rsrc_plist();
1025 zend_init_exception_op();
1026 zend_init_call_trampoline_op();
1027 #endif
1028
1029 zend_ini_startup();
1030
1031 #ifdef ZEND_WIN32
1032 /* Uses INI settings, so needs to be run after it. */
1033 php_win32_cp_setup();
1034 #endif
1035
1036 zend_optimizer_startup();
1037
1038 #ifdef ZTS
1039 tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
1040 tsrm_set_shutdown_handler(zend_interned_strings_dtor);
1041 #endif
1042 }
1043 /* }}} */
1044
zend_register_standard_ini_entries(void)1045 void zend_register_standard_ini_entries(void) /* {{{ */
1046 {
1047 zend_register_ini_entries_ex(ini_entries, 0, MODULE_PERSISTENT);
1048 }
1049 /* }}} */
1050
1051
1052 /* Unlink the global (r/o) copies of the class, function and constant tables,
1053 * and use a fresh r/w copy for the startup thread
1054 */
zend_post_startup(void)1055 zend_result zend_post_startup(void) /* {{{ */
1056 {
1057 #ifdef ZTS
1058 zend_encoding **script_encoding_list;
1059
1060 zend_compiler_globals *compiler_globals = ts_resource(compiler_globals_id);
1061 zend_executor_globals *executor_globals = ts_resource(executor_globals_id);
1062 #endif
1063
1064 startup_done = true;
1065
1066 if (zend_post_startup_cb) {
1067 zend_result (*cb)(void) = zend_post_startup_cb;
1068
1069 zend_post_startup_cb = NULL;
1070 if (cb() != SUCCESS) {
1071 return FAILURE;
1072 }
1073 }
1074
1075 #ifdef ZTS
1076 *GLOBAL_FUNCTION_TABLE = *compiler_globals->function_table;
1077 *GLOBAL_CLASS_TABLE = *compiler_globals->class_table;
1078 *GLOBAL_CONSTANTS_TABLE = *executor_globals->zend_constants;
1079 global_map_ptr_last = compiler_globals->map_ptr_last;
1080
1081 short_tags_default = CG(short_tags);
1082 compiler_options_default = CG(compiler_options);
1083
1084 zend_destroy_rsrc_list(&EG(persistent_list));
1085 free(compiler_globals->function_table);
1086 compiler_globals->function_table = NULL;
1087 free(compiler_globals->class_table);
1088 compiler_globals->class_table = NULL;
1089 if (compiler_globals->map_ptr_real_base) {
1090 free(compiler_globals->map_ptr_real_base);
1091 }
1092 compiler_globals->map_ptr_real_base = NULL;
1093 compiler_globals->map_ptr_base = ZEND_MAP_PTR_BIASED_BASE(NULL);
1094 if ((script_encoding_list = (zend_encoding **)compiler_globals->script_encoding_list)) {
1095 compiler_globals_ctor(compiler_globals);
1096 compiler_globals->script_encoding_list = (const zend_encoding **)script_encoding_list;
1097 } else {
1098 compiler_globals_ctor(compiler_globals);
1099 }
1100 free(EG(zend_constants));
1101 EG(zend_constants) = NULL;
1102
1103 executor_globals_ctor(executor_globals);
1104 global_persistent_list = &EG(persistent_list);
1105 zend_copy_ini_directives();
1106 #else
1107 global_map_ptr_last = CG(map_ptr_last);
1108 #endif
1109
1110 return SUCCESS;
1111 }
1112 /* }}} */
1113
zend_shutdown(void)1114 void zend_shutdown(void) /* {{{ */
1115 {
1116 zend_vm_dtor();
1117
1118 zend_destroy_rsrc_list(&EG(persistent_list));
1119 zend_destroy_modules();
1120
1121 virtual_cwd_deactivate();
1122 virtual_cwd_shutdown();
1123
1124 zend_hash_destroy(GLOBAL_FUNCTION_TABLE);
1125 /* Child classes may reuse structures from parent classes, so destroy in reverse order. */
1126 zend_hash_graceful_reverse_destroy(GLOBAL_CLASS_TABLE);
1127
1128 zend_hash_destroy(GLOBAL_AUTO_GLOBALS_TABLE);
1129 free(GLOBAL_AUTO_GLOBALS_TABLE);
1130
1131 zend_shutdown_extensions();
1132 free(zend_version_info);
1133
1134 free(GLOBAL_FUNCTION_TABLE);
1135 free(GLOBAL_CLASS_TABLE);
1136
1137 zend_hash_destroy(GLOBAL_CONSTANTS_TABLE);
1138 free(GLOBAL_CONSTANTS_TABLE);
1139 zend_shutdown_strtod();
1140 zend_attributes_shutdown();
1141
1142 #ifdef ZTS
1143 GLOBAL_FUNCTION_TABLE = NULL;
1144 GLOBAL_CLASS_TABLE = NULL;
1145 GLOBAL_AUTO_GLOBALS_TABLE = NULL;
1146 GLOBAL_CONSTANTS_TABLE = NULL;
1147 ts_free_id(executor_globals_id);
1148 ts_free_id(compiler_globals_id);
1149 #else
1150 if (CG(map_ptr_real_base)) {
1151 free(CG(map_ptr_real_base));
1152 CG(map_ptr_real_base) = NULL;
1153 CG(map_ptr_base) = ZEND_MAP_PTR_BIASED_BASE(NULL);
1154 CG(map_ptr_size) = 0;
1155 }
1156 if (CG(script_encoding_list)) {
1157 free(ZEND_VOIDP(CG(script_encoding_list)));
1158 CG(script_encoding_list) = NULL;
1159 CG(script_encoding_list_size) = 0;
1160 }
1161 #endif
1162 zend_destroy_rsrc_list_dtors();
1163
1164 zend_optimizer_shutdown();
1165 startup_done = false;
1166 }
1167 /* }}} */
1168
zend_set_utility_values(zend_utility_values * utility_values)1169 void zend_set_utility_values(zend_utility_values *utility_values) /* {{{ */
1170 {
1171 zend_uv = *utility_values;
1172 }
1173 /* }}} */
1174
1175 /* this should be compatible with the standard zenderror */
zenderror(const char * error)1176 ZEND_COLD void zenderror(const char *error) /* {{{ */
1177 {
1178 CG(parse_error) = 0;
1179
1180 if (EG(exception)) {
1181 /* An exception was thrown in the lexer, don't throw another in the parser. */
1182 return;
1183 }
1184
1185 zend_throw_exception(zend_ce_parse_error, error, 0);
1186 }
1187 /* }}} */
1188
_zend_bailout(const char * filename,uint32_t lineno)1189 ZEND_API ZEND_COLD ZEND_NORETURN void _zend_bailout(const char *filename, uint32_t lineno) /* {{{ */
1190 {
1191
1192 if (!EG(bailout)) {
1193 zend_output_debug_string(1, "%s(%d) : Bailed out without a bailout address!", filename, lineno);
1194 exit(-1);
1195 }
1196 gc_protect(1);
1197 CG(unclean_shutdown) = 1;
1198 CG(active_class_entry) = NULL;
1199 CG(in_compilation) = 0;
1200 CG(memoize_mode) = 0;
1201 EG(current_execute_data) = NULL;
1202 LONGJMP(*EG(bailout), FAILURE);
1203 }
1204 /* }}} */
1205
zend_get_page_size(void)1206 ZEND_API size_t zend_get_page_size(void)
1207 {
1208 #ifdef _WIN32
1209 SYSTEM_INFO system_info;
1210 GetSystemInfo(&system_info);
1211 return system_info.dwPageSize;
1212 #elif defined(__FreeBSD__)
1213 /* This returns the value obtained from
1214 * the auxv vector, avoiding a syscall. */
1215 return getpagesize();
1216 #else
1217 return (size_t) sysconf(_SC_PAGESIZE);
1218 #endif
1219 }
1220
zend_append_version_info(const zend_extension * extension)1221 ZEND_API void zend_append_version_info(const zend_extension *extension) /* {{{ */
1222 {
1223 char *new_info;
1224 uint32_t new_info_length;
1225
1226 new_info_length = (uint32_t)(sizeof(" with v, , by \n")
1227 + strlen(extension->name)
1228 + strlen(extension->version)
1229 + strlen(extension->copyright)
1230 + strlen(extension->author));
1231
1232 new_info = (char *) malloc(new_info_length + 1);
1233
1234 snprintf(new_info, new_info_length, " with %s v%s, %s, by %s\n", extension->name, extension->version, extension->copyright, extension->author);
1235
1236 zend_version_info = (char *) realloc(zend_version_info, zend_version_info_length+new_info_length + 1);
1237 strncat(zend_version_info, new_info, new_info_length);
1238 zend_version_info_length += new_info_length;
1239 free(new_info);
1240 }
1241 /* }}} */
1242
get_zend_version(void)1243 ZEND_API const char *get_zend_version(void) /* {{{ */
1244 {
1245 return zend_version_info;
1246 }
1247 /* }}} */
1248
zend_activate(void)1249 ZEND_API void zend_activate(void) /* {{{ */
1250 {
1251 #ifdef ZTS
1252 virtual_cwd_activate();
1253 #endif
1254 gc_reset();
1255 init_compiler();
1256 init_executor();
1257 startup_scanner();
1258 if (CG(map_ptr_last)) {
1259 memset(CG(map_ptr_real_base), 0, CG(map_ptr_last) * sizeof(void*));
1260 }
1261 zend_observer_activate();
1262 }
1263 /* }}} */
1264
zend_call_destructors(void)1265 void zend_call_destructors(void) /* {{{ */
1266 {
1267 zend_try {
1268 shutdown_destructors();
1269 } zend_end_try();
1270 }
1271 /* }}} */
1272
zend_deactivate(void)1273 ZEND_API void zend_deactivate(void) /* {{{ */
1274 {
1275 /* we're no longer executing anything */
1276 EG(current_execute_data) = NULL;
1277
1278 zend_try {
1279 shutdown_scanner();
1280 } zend_end_try();
1281
1282 /* shutdown_executor() takes care of its own bailout handling */
1283 shutdown_executor();
1284
1285 zend_try {
1286 zend_ini_deactivate();
1287 } zend_end_try();
1288
1289 zend_try {
1290 shutdown_compiler();
1291 } zend_end_try();
1292
1293 zend_destroy_rsrc_list(&EG(regular_list));
1294
1295 /* See GH-8646: https://github.com/php/php-src/issues/8646
1296 *
1297 * Interned strings that hold class entries can get a corresponding slot in map_ptr for the CE cache.
1298 * map_ptr works like a bump allocator: there is a counter which increases to allocate the next slot in the map.
1299 *
1300 * For class name strings in non-opcache we have:
1301 * - on startup: permanent + interned
1302 * - on request: interned
1303 * For class name strings in opcache we have:
1304 * - on startup: permanent + interned
1305 * - on request: either not interned at all, which we can ignore because they won't get a CE cache entry
1306 * or they were already permanent + interned
1307 * or we get a new permanent + interned string in the opcache persistence code
1308 *
1309 * Notice that the map_ptr layout always has the permanent strings first, and the request strings after.
1310 * In non-opcache, a request string may get a slot in map_ptr, and that interned request string
1311 * gets destroyed at the end of the request. The corresponding map_ptr slot can thereafter never be used again.
1312 * This causes map_ptr to keep reallocating to larger and larger sizes.
1313 *
1314 * We solve it as follows:
1315 * We can check whether we had any interned request strings, which only happens in non-opcache.
1316 * If we have any, we reset map_ptr to the last permanent string.
1317 * We can't lose any permanent strings because of map_ptr's layout.
1318 */
1319 if (zend_hash_num_elements(&CG(interned_strings)) > 0) {
1320 zend_map_ptr_reset();
1321 }
1322
1323 #if GC_BENCH
1324 fprintf(stderr, "GC Statistics\n");
1325 fprintf(stderr, "-------------\n");
1326 fprintf(stderr, "Runs: %d\n", GC_G(gc_runs));
1327 fprintf(stderr, "Collected: %d\n", GC_G(collected));
1328 fprintf(stderr, "Root buffer length: %d\n", GC_G(root_buf_length));
1329 fprintf(stderr, "Root buffer peak: %d\n\n", GC_G(root_buf_peak));
1330 fprintf(stderr, " Possible Remove from Marked\n");
1331 fprintf(stderr, " Root Buffered buffer grey\n");
1332 fprintf(stderr, " -------- -------- ----------- ------\n");
1333 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));
1334 #endif
1335 }
1336 /* }}} */
1337
zend_message_dispatcher(zend_long message,const void * data)1338 ZEND_API void zend_message_dispatcher(zend_long message, const void *data) /* {{{ */
1339 {
1340 if (zend_message_dispatcher_p) {
1341 zend_message_dispatcher_p(message, data);
1342 }
1343 }
1344 /* }}} */
1345
zend_get_configuration_directive(zend_string * name)1346 ZEND_API zval *zend_get_configuration_directive(zend_string *name) /* {{{ */
1347 {
1348 if (zend_get_configuration_directive_p) {
1349 return zend_get_configuration_directive_p(name);
1350 } else {
1351 return NULL;
1352 }
1353 }
1354 /* }}} */
1355
1356 #define SAVE_STACK(stack) do { \
1357 if (CG(stack).top) { \
1358 memcpy(&stack, &CG(stack), sizeof(zend_stack)); \
1359 CG(stack).top = CG(stack).max = 0; \
1360 CG(stack).elements = NULL; \
1361 } else { \
1362 stack.top = 0; \
1363 } \
1364 } while (0)
1365
1366 #define RESTORE_STACK(stack) do { \
1367 if (stack.top) { \
1368 zend_stack_destroy(&CG(stack)); \
1369 memcpy(&CG(stack), &stack, sizeof(zend_stack)); \
1370 } \
1371 } while (0)
1372
zend_error_zstr_at(int orig_type,zend_string * error_filename,uint32_t error_lineno,zend_string * message)1373 ZEND_API ZEND_COLD void zend_error_zstr_at(
1374 int orig_type, zend_string *error_filename, uint32_t error_lineno, zend_string *message)
1375 {
1376 zval params[4];
1377 zval retval;
1378 zval orig_user_error_handler;
1379 bool in_compilation;
1380 zend_class_entry *saved_class_entry;
1381 zend_stack loop_var_stack;
1382 zend_stack delayed_oplines_stack;
1383 int type = orig_type & E_ALL;
1384 bool orig_record_errors;
1385 uint32_t orig_num_errors;
1386 zend_error_info **orig_errors;
1387 zend_result res;
1388
1389 /* If we're executing a function during SCCP, count any warnings that may be emitted,
1390 * but don't perform any other error handling. */
1391 if (EG(capture_warnings_during_sccp)) {
1392 ZEND_ASSERT(!(type & E_FATAL_ERRORS) && "Fatal error during SCCP");
1393 EG(capture_warnings_during_sccp)++;
1394 return;
1395 }
1396
1397 if (EG(record_errors)) {
1398 zend_error_info *info = emalloc(sizeof(zend_error_info));
1399 info->type = type;
1400 info->lineno = error_lineno;
1401 info->filename = zend_string_copy(error_filename);
1402 info->message = zend_string_copy(message);
1403
1404 /* This is very inefficient for a large number of errors.
1405 * Use pow2 realloc if it becomes a problem. */
1406 EG(num_errors)++;
1407 EG(errors) = erealloc(EG(errors), sizeof(zend_error_info) * EG(num_errors));
1408 EG(errors)[EG(num_errors)-1] = info;
1409 }
1410
1411 /* Report about uncaught exception in case of fatal errors */
1412 if (EG(exception)) {
1413 zend_execute_data *ex;
1414 const zend_op *opline;
1415
1416 if (type & E_FATAL_ERRORS) {
1417 ex = EG(current_execute_data);
1418 opline = NULL;
1419 while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
1420 ex = ex->prev_execute_data;
1421 }
1422 if (ex && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
1423 EG(opline_before_exception)) {
1424 opline = EG(opline_before_exception);
1425 }
1426 zend_exception_error(EG(exception), E_WARNING);
1427 EG(exception) = NULL;
1428 if (opline) {
1429 ex->opline = opline;
1430 }
1431 }
1432 }
1433
1434 zend_observer_error_notify(type, error_filename, error_lineno, message);
1435
1436 /* if we don't have a user defined error handler */
1437 if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF
1438 || !(EG(user_error_handler_error_reporting) & type)
1439 || EG(error_handling) != EH_NORMAL) {
1440 zend_error_cb(orig_type, error_filename, error_lineno, message);
1441 } else switch (type) {
1442 case E_ERROR:
1443 case E_PARSE:
1444 case E_CORE_ERROR:
1445 case E_CORE_WARNING:
1446 case E_COMPILE_ERROR:
1447 case E_COMPILE_WARNING:
1448 /* The error may not be safe to handle in user-space */
1449 zend_error_cb(orig_type, error_filename, error_lineno, message);
1450 break;
1451 default:
1452 /* Handle the error in user space */
1453 ZVAL_STR_COPY(¶ms[1], message);
1454 ZVAL_LONG(¶ms[0], type);
1455
1456 if (error_filename) {
1457 ZVAL_STR_COPY(¶ms[2], error_filename);
1458 } else {
1459 ZVAL_NULL(¶ms[2]);
1460 }
1461
1462 ZVAL_LONG(¶ms[3], error_lineno);
1463
1464 ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
1465 ZVAL_UNDEF(&EG(user_error_handler));
1466
1467 /* User error handler may include() additional PHP files.
1468 * If an error was generated during compilation PHP will compile
1469 * such scripts recursively, but some CG() variables may be
1470 * inconsistent. */
1471
1472 in_compilation = CG(in_compilation);
1473 if (in_compilation) {
1474 saved_class_entry = CG(active_class_entry);
1475 CG(active_class_entry) = NULL;
1476 SAVE_STACK(loop_var_stack);
1477 SAVE_STACK(delayed_oplines_stack);
1478 CG(in_compilation) = 0;
1479 }
1480
1481 orig_record_errors = EG(record_errors);
1482 orig_num_errors = EG(num_errors);
1483 orig_errors = EG(errors);
1484 EG(record_errors) = false;
1485 EG(num_errors) = 0;
1486 EG(errors) = NULL;
1487
1488 res = call_user_function(CG(function_table), NULL, &orig_user_error_handler, &retval, 4, params);
1489
1490 EG(record_errors) = orig_record_errors;
1491 EG(num_errors) = orig_num_errors;
1492 EG(errors) = orig_errors;
1493
1494 if (res == SUCCESS) {
1495 if (Z_TYPE(retval) != IS_UNDEF) {
1496 if (Z_TYPE(retval) == IS_FALSE) {
1497 zend_error_cb(orig_type, error_filename, error_lineno, message);
1498 }
1499 zval_ptr_dtor(&retval);
1500 }
1501 } else if (!EG(exception)) {
1502 /* The user error handler failed, use built-in error handler */
1503 zend_error_cb(orig_type, error_filename, error_lineno, message);
1504 }
1505
1506 if (in_compilation) {
1507 CG(active_class_entry) = saved_class_entry;
1508 RESTORE_STACK(loop_var_stack);
1509 RESTORE_STACK(delayed_oplines_stack);
1510 CG(in_compilation) = 1;
1511 }
1512
1513 zval_ptr_dtor(¶ms[2]);
1514 zval_ptr_dtor(¶ms[1]);
1515
1516 if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF) {
1517 ZVAL_COPY_VALUE(&EG(user_error_handler), &orig_user_error_handler);
1518 } else {
1519 zval_ptr_dtor(&orig_user_error_handler);
1520 }
1521 break;
1522 }
1523
1524 if (type == E_PARSE) {
1525 /* eval() errors do not affect exit_status */
1526 if (!(EG(current_execute_data) &&
1527 EG(current_execute_data)->func &&
1528 ZEND_USER_CODE(EG(current_execute_data)->func->type) &&
1529 EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
1530 EG(current_execute_data)->opline->extended_value == ZEND_EVAL)) {
1531 EG(exit_status) = 255;
1532 }
1533 }
1534 }
1535 /* }}} */
1536
zend_error_va_list(int orig_type,zend_string * error_filename,uint32_t error_lineno,const char * format,va_list args)1537 static ZEND_COLD void zend_error_va_list(
1538 int orig_type, zend_string *error_filename, uint32_t error_lineno,
1539 const char *format, va_list args)
1540 {
1541 zend_string *message = zend_vstrpprintf(0, format, args);
1542 zend_error_zstr_at(orig_type, error_filename, error_lineno, message);
1543 zend_string_release(message);
1544 }
1545
get_filename_lineno(int type,zend_string ** filename,uint32_t * lineno)1546 static ZEND_COLD void get_filename_lineno(int type, zend_string **filename, uint32_t *lineno) {
1547 /* Obtain relevant filename and lineno */
1548 switch (type) {
1549 case E_CORE_ERROR:
1550 case E_CORE_WARNING:
1551 *filename = NULL;
1552 *lineno = 0;
1553 break;
1554 case E_PARSE:
1555 case E_COMPILE_ERROR:
1556 case E_COMPILE_WARNING:
1557 case E_ERROR:
1558 case E_NOTICE:
1559 case E_STRICT:
1560 case E_DEPRECATED:
1561 case E_WARNING:
1562 case E_USER_ERROR:
1563 case E_USER_WARNING:
1564 case E_USER_NOTICE:
1565 case E_USER_DEPRECATED:
1566 case E_RECOVERABLE_ERROR:
1567 if (zend_is_compiling()) {
1568 *filename = zend_get_compiled_filename();
1569 *lineno = zend_get_compiled_lineno();
1570 } else if (zend_is_executing()) {
1571 *filename = zend_get_executed_filename_ex();
1572 *lineno = zend_get_executed_lineno();
1573 } else {
1574 *filename = NULL;
1575 *lineno = 0;
1576 }
1577 break;
1578 default:
1579 *filename = NULL;
1580 *lineno = 0;
1581 break;
1582 }
1583 if (!*filename) {
1584 *filename = ZSTR_KNOWN(ZEND_STR_UNKNOWN_CAPITALIZED);
1585 }
1586 }
1587
zend_error_at(int type,zend_string * filename,uint32_t lineno,const char * format,...)1588 ZEND_API ZEND_COLD void zend_error_at(
1589 int type, zend_string *filename, uint32_t lineno, const char *format, ...) {
1590 va_list args;
1591
1592 if (!filename) {
1593 uint32_t dummy_lineno;
1594 get_filename_lineno(type, &filename, &dummy_lineno);
1595 }
1596
1597 va_start(args, format);
1598 zend_error_va_list(type, filename, lineno, format, args);
1599 va_end(args);
1600 }
1601
zend_error(int type,const char * format,...)1602 ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) {
1603 zend_string *filename;
1604 uint32_t lineno;
1605 va_list args;
1606
1607 get_filename_lineno(type, &filename, &lineno);
1608 va_start(args, format);
1609 zend_error_va_list(type, filename, lineno, format, args);
1610 va_end(args);
1611 }
1612
zend_error_unchecked(int type,const char * format,...)1613 ZEND_API ZEND_COLD void zend_error_unchecked(int type, const char *format, ...) {
1614 zend_string *filename;
1615 uint32_t lineno;
1616 va_list args;
1617
1618 get_filename_lineno(type, &filename, &lineno);
1619 va_start(args, format);
1620 zend_error_va_list(type, filename, lineno, format, args);
1621 va_end(args);
1622 }
1623
zend_error_at_noreturn(int type,zend_string * filename,uint32_t lineno,const char * format,...)1624 ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_at_noreturn(
1625 int type, zend_string *filename, uint32_t lineno, const char *format, ...)
1626 {
1627 va_list args;
1628
1629 if (!filename) {
1630 uint32_t dummy_lineno;
1631 get_filename_lineno(type, &filename, &dummy_lineno);
1632 }
1633
1634 va_start(args, format);
1635 zend_error_va_list(type, filename, lineno, format, args);
1636 va_end(args);
1637 /* Should never reach this. */
1638 abort();
1639 }
1640
zend_error_noreturn(int type,const char * format,...)1641 ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_noreturn(int type, const char *format, ...)
1642 {
1643 zend_string *filename;
1644 uint32_t lineno;
1645 va_list args;
1646
1647 get_filename_lineno(type, &filename, &lineno);
1648 va_start(args, format);
1649 zend_error_va_list(type, filename, lineno, format, args);
1650 va_end(args);
1651 /* Should never reach this. */
1652 abort();
1653 }
1654
zend_strerror_noreturn(int type,int errn,const char * message)1655 ZEND_API ZEND_COLD ZEND_NORETURN void zend_strerror_noreturn(int type, int errn, const char *message)
1656 {
1657 #ifdef HAVE_STRERROR_R
1658 char b[1024];
1659
1660 # ifdef STRERROR_R_CHAR_P
1661 char *buf = strerror_r(errn, b, sizeof(b));
1662 # else
1663 strerror_r(errn, b, sizeof(b));
1664 char *buf = b;
1665 # endif
1666 #else
1667 char *buf = strerror(errn);
1668 #endif
1669
1670 zend_error_noreturn(type, "%s: %s (%d)", message, buf, errn);
1671 }
1672
zend_error_zstr(int type,zend_string * message)1673 ZEND_API ZEND_COLD void zend_error_zstr(int type, zend_string *message) {
1674 zend_string *filename;
1675 uint32_t lineno;
1676 get_filename_lineno(type, &filename, &lineno);
1677 zend_error_zstr_at(type, filename, lineno, message);
1678 }
1679
zend_begin_record_errors(void)1680 ZEND_API void zend_begin_record_errors(void)
1681 {
1682 ZEND_ASSERT(!EG(record_errors) && "Error recording already enabled");
1683 EG(record_errors) = true;
1684 EG(num_errors) = 0;
1685 EG(errors) = NULL;
1686 }
1687
zend_emit_recorded_errors(void)1688 ZEND_API void zend_emit_recorded_errors(void)
1689 {
1690 EG(record_errors) = false;
1691 for (uint32_t i = 0; i < EG(num_errors); i++) {
1692 zend_error_info *error = EG(errors)[i];
1693 zend_error_zstr_at(error->type, error->filename, error->lineno, error->message);
1694 }
1695 }
1696
zend_free_recorded_errors(void)1697 ZEND_API void zend_free_recorded_errors(void)
1698 {
1699 if (!EG(num_errors)) {
1700 return;
1701 }
1702
1703 for (uint32_t i = 0; i < EG(num_errors); i++) {
1704 zend_error_info *info = EG(errors)[i];
1705 zend_string_release(info->filename);
1706 zend_string_release(info->message);
1707 efree(info);
1708 }
1709 efree(EG(errors));
1710 EG(errors) = NULL;
1711 EG(num_errors) = 0;
1712 }
1713
zend_throw_error(zend_class_entry * exception_ce,const char * format,...)1714 ZEND_API ZEND_COLD void zend_throw_error(zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
1715 {
1716 va_list va;
1717 char *message = NULL;
1718
1719 if (!exception_ce) {
1720 exception_ce = zend_ce_error;
1721 }
1722
1723 /* Marker used to disable exception generation during preloading. */
1724 if (EG(exception) == (void*)(uintptr_t)-1) {
1725 return;
1726 }
1727
1728 va_start(va, format);
1729 zend_vspprintf(&message, 0, format, va);
1730
1731 //TODO: we can't convert compile-time errors to exceptions yet???
1732 if (EG(current_execute_data) && !CG(in_compilation)) {
1733 zend_throw_exception(exception_ce, message, 0);
1734 } else {
1735 zend_error(E_ERROR, "%s", message);
1736 }
1737
1738 efree(message);
1739 va_end(va);
1740 }
1741 /* }}} */
1742
zend_type_error(const char * format,...)1743 ZEND_API ZEND_COLD void zend_type_error(const char *format, ...) /* {{{ */
1744 {
1745 va_list va;
1746 char *message = NULL;
1747
1748 va_start(va, format);
1749 zend_vspprintf(&message, 0, format, va);
1750 zend_throw_exception(zend_ce_type_error, message, 0);
1751 efree(message);
1752 va_end(va);
1753 } /* }}} */
1754
zend_argument_count_error(const char * format,...)1755 ZEND_API ZEND_COLD void zend_argument_count_error(const char *format, ...) /* {{{ */
1756 {
1757 va_list va;
1758 char *message = NULL;
1759
1760 va_start(va, format);
1761 zend_vspprintf(&message, 0, format, va);
1762 zend_throw_exception(zend_ce_argument_count_error, message, 0);
1763 efree(message);
1764
1765 va_end(va);
1766 } /* }}} */
1767
zend_value_error(const char * format,...)1768 ZEND_API ZEND_COLD void zend_value_error(const char *format, ...) /* {{{ */
1769 {
1770 va_list va;
1771 char *message = NULL;
1772
1773 va_start(va, format);
1774 zend_vspprintf(&message, 0, format, va);
1775 zend_throw_exception(zend_ce_value_error, message, 0);
1776 efree(message);
1777 va_end(va);
1778 } /* }}} */
1779
zend_output_debug_string(bool trigger_break,const char * format,...)1780 ZEND_API ZEND_COLD void zend_output_debug_string(bool trigger_break, const char *format, ...) /* {{{ */
1781 {
1782 #if ZEND_DEBUG
1783 va_list args;
1784
1785 va_start(args, format);
1786 # ifdef ZEND_WIN32
1787 {
1788 char output_buf[1024];
1789
1790 vsnprintf(output_buf, 1024, format, args);
1791 OutputDebugString(output_buf);
1792 OutputDebugString("\n");
1793 if (trigger_break && IsDebuggerPresent()) {
1794 DebugBreak();
1795 }
1796 }
1797 # else
1798 vfprintf(stderr, format, args);
1799 fprintf(stderr, "\n");
1800 # endif
1801 va_end(args);
1802 #endif
1803 }
1804 /* }}} */
1805
zend_user_exception_handler(void)1806 ZEND_API ZEND_COLD void zend_user_exception_handler(void) /* {{{ */
1807 {
1808 zval orig_user_exception_handler;
1809 zval params[1], retval2;
1810 zend_object *old_exception;
1811
1812 if (zend_is_unwind_exit(EG(exception))) {
1813 return;
1814 }
1815
1816 old_exception = EG(exception);
1817 EG(exception) = NULL;
1818 ZVAL_OBJ(¶ms[0], old_exception);
1819 ZVAL_COPY_VALUE(&orig_user_exception_handler, &EG(user_exception_handler));
1820
1821 if (call_user_function(CG(function_table), NULL, &orig_user_exception_handler, &retval2, 1, params) == SUCCESS) {
1822 zval_ptr_dtor(&retval2);
1823 if (EG(exception)) {
1824 OBJ_RELEASE(EG(exception));
1825 EG(exception) = NULL;
1826 }
1827 OBJ_RELEASE(old_exception);
1828 } else {
1829 EG(exception) = old_exception;
1830 }
1831 } /* }}} */
1832
zend_execute_scripts(int type,zval * retval,int file_count,...)1833 ZEND_API zend_result zend_execute_scripts(int type, zval *retval, int file_count, ...) /* {{{ */
1834 {
1835 va_list files;
1836 int i;
1837 zend_file_handle *file_handle;
1838 zend_op_array *op_array;
1839 zend_result ret = SUCCESS;
1840
1841 va_start(files, file_count);
1842 for (i = 0; i < file_count; i++) {
1843 file_handle = va_arg(files, zend_file_handle *);
1844 if (!file_handle) {
1845 continue;
1846 }
1847
1848 if (ret == FAILURE) {
1849 continue;
1850 }
1851
1852 op_array = zend_compile_file(file_handle, type);
1853 if (file_handle->opened_path) {
1854 zend_hash_add_empty_element(&EG(included_files), file_handle->opened_path);
1855 }
1856 if (op_array) {
1857 zend_execute(op_array, retval);
1858 zend_exception_restore();
1859 if (UNEXPECTED(EG(exception))) {
1860 if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
1861 zend_user_exception_handler();
1862 }
1863 if (EG(exception)) {
1864 ret = zend_exception_error(EG(exception), E_ERROR);
1865 }
1866 }
1867 zend_destroy_static_vars(op_array);
1868 destroy_op_array(op_array);
1869 efree_size(op_array, sizeof(zend_op_array));
1870 } else if (type==ZEND_REQUIRE) {
1871 ret = FAILURE;
1872 }
1873 }
1874 va_end(files);
1875
1876 return ret;
1877 }
1878 /* }}} */
1879
1880 #define COMPILED_STRING_DESCRIPTION_FORMAT "%s(%d) : %s"
1881
zend_make_compiled_string_description(const char * name)1882 ZEND_API char *zend_make_compiled_string_description(const char *name) /* {{{ */
1883 {
1884 const char *cur_filename;
1885 int cur_lineno;
1886 char *compiled_string_description;
1887
1888 if (zend_is_compiling()) {
1889 cur_filename = ZSTR_VAL(zend_get_compiled_filename());
1890 cur_lineno = zend_get_compiled_lineno();
1891 } else if (zend_is_executing()) {
1892 cur_filename = zend_get_executed_filename();
1893 cur_lineno = zend_get_executed_lineno();
1894 } else {
1895 cur_filename = "Unknown";
1896 cur_lineno = 0;
1897 }
1898
1899 zend_spprintf(&compiled_string_description, 0, COMPILED_STRING_DESCRIPTION_FORMAT, cur_filename, cur_lineno, name);
1900 return compiled_string_description;
1901 }
1902 /* }}} */
1903
free_estring(char ** str_p)1904 void free_estring(char **str_p) /* {{{ */
1905 {
1906 efree(*str_p);
1907 }
1908 /* }}} */
1909
zend_map_ptr_reset(void)1910 ZEND_API void zend_map_ptr_reset(void)
1911 {
1912 CG(map_ptr_last) = global_map_ptr_last;
1913 }
1914
zend_map_ptr_new(void)1915 ZEND_API void *zend_map_ptr_new(void)
1916 {
1917 void **ptr;
1918
1919 if (CG(map_ptr_last) >= CG(map_ptr_size)) {
1920 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
1921 // TODO: error ???
1922 ZEND_UNREACHABLE();
1923 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
1924 /* Grow map_ptr table */
1925 CG(map_ptr_size) = ZEND_MM_ALIGNED_SIZE_EX(CG(map_ptr_last) + 1, 4096);
1926 CG(map_ptr_real_base) = perealloc(CG(map_ptr_real_base), CG(map_ptr_size) * sizeof(void*), 1);
1927 CG(map_ptr_base) = ZEND_MAP_PTR_BIASED_BASE(CG(map_ptr_real_base));
1928 #else
1929 # error "Unknown ZEND_MAP_PTR_KIND"
1930 #endif
1931 }
1932 ptr = (void**)CG(map_ptr_real_base) + CG(map_ptr_last);
1933 *ptr = NULL;
1934 CG(map_ptr_last)++;
1935 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
1936 return ptr;
1937 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
1938 return ZEND_MAP_PTR_PTR2OFFSET(ptr);
1939 #else
1940 # error "Unknown ZEND_MAP_PTR_KIND"
1941 #endif
1942 }
1943
zend_map_ptr_extend(size_t last)1944 ZEND_API void zend_map_ptr_extend(size_t last)
1945 {
1946 if (last > CG(map_ptr_last)) {
1947 void **ptr;
1948
1949 if (last >= CG(map_ptr_size)) {
1950 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
1951 /* This may never happen */
1952 ZEND_UNREACHABLE();
1953 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
1954 /* Grow map_ptr table */
1955 CG(map_ptr_size) = ZEND_MM_ALIGNED_SIZE_EX(last, 4096);
1956 CG(map_ptr_real_base) = perealloc(CG(map_ptr_real_base), CG(map_ptr_size) * sizeof(void*), 1);
1957 CG(map_ptr_base) = ZEND_MAP_PTR_BIASED_BASE(CG(map_ptr_real_base));
1958 #else
1959 # error "Unknown ZEND_MAP_PTR_KIND"
1960 #endif
1961 }
1962 ptr = (void**)CG(map_ptr_real_base) + CG(map_ptr_last);
1963 memset(ptr, 0, (last - CG(map_ptr_last)) * sizeof(void*));
1964 CG(map_ptr_last) = last;
1965 }
1966 }
1967
zend_alloc_ce_cache(zend_string * type_name)1968 ZEND_API void zend_alloc_ce_cache(zend_string *type_name)
1969 {
1970 if (ZSTR_HAS_CE_CACHE(type_name) || !ZSTR_IS_INTERNED(type_name)) {
1971 return;
1972 }
1973
1974 if ((GC_FLAGS(type_name) & IS_STR_PERMANENT) && startup_done) {
1975 /* Don't allocate slot on permanent interned string outside module startup.
1976 * The cache slot would no longer be valid on the next request. */
1977 return;
1978 }
1979
1980 if (zend_string_equals_literal_ci(type_name, "self")
1981 || zend_string_equals_literal_ci(type_name, "parent")) {
1982 return;
1983 }
1984
1985 /* We use the refcount to keep map_ptr of corresponding type */
1986 uint32_t ret;
1987 do {
1988 ret = ZEND_MAP_PTR_NEW_OFFSET();
1989 } while (ret <= 2);
1990 GC_ADD_FLAGS(type_name, IS_STR_CLASS_NAME_MAP_PTR);
1991 GC_SET_REFCOUNT(type_name, ret);
1992 }
1993
