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 #ifndef ZEND_GLOBALS_H 21 #define ZEND_GLOBALS_H 22 23 24 #include <setjmp.h> 25 #include <sys/types.h> 26 27 #include "zend_globals_macros.h" 28 29 #include "zend_stack.h" 30 #include "zend_ptr_stack.h" 31 #include "zend_hash.h" 32 #include "zend_llist.h" 33 #include "zend_objects.h" 34 #include "zend_objects_API.h" 35 #include "zend_modules.h" 36 #include "zend_float.h" 37 #include "zend_multibyte.h" 38 #include "zend_multiply.h" 39 #include "zend_arena.h" 40 #include "zend_max_execution_timer.h" 41 42 /* Define ZTS if you want a thread-safe Zend */ 43 /*#undef ZTS*/ 44 45 #ifdef ZTS 46 47 BEGIN_EXTERN_C() 48 ZEND_API extern int compiler_globals_id; 49 ZEND_API extern int executor_globals_id; 50 ZEND_API extern size_t compiler_globals_offset; 51 ZEND_API extern size_t executor_globals_offset; 52 END_EXTERN_C() 53 54 #endif 55 56 #define SYMTABLE_CACHE_SIZE 32 57 58 59 #include "zend_compile.h" 60 61 /* excpt.h on Digital Unix 4.0 defines function_table */ 62 #undef function_table 63 64 typedef struct _zend_vm_stack *zend_vm_stack; 65 typedef struct _zend_ini_entry zend_ini_entry; 66 typedef struct _zend_fiber_context zend_fiber_context; 67 typedef struct _zend_fiber zend_fiber; 68 69 struct _zend_compiler_globals { 70 zend_stack loop_var_stack; 71 72 zend_class_entry *active_class_entry; 73 74 zend_string *compiled_filename; 75 76 int zend_lineno; 77 78 zend_op_array *active_op_array; 79 80 HashTable *function_table; /* function symbol table */ 81 HashTable *class_table; /* class table */ 82 83 HashTable *auto_globals; 84 85 /* Refer to zend_yytnamerr() in zend_language_parser.y for meaning of values */ 86 zend_uchar parse_error; 87 bool in_compilation; 88 bool short_tags; 89 90 bool unclean_shutdown; 91 92 bool ini_parser_unbuffered_errors; 93 94 zend_llist open_files; 95 96 struct _zend_ini_parser_param *ini_parser_param; 97 98 bool skip_shebang; 99 bool increment_lineno; 100 101 bool variable_width_locale; /* UTF-8, Shift-JIS, Big5, ISO 2022, EUC, etc */ 102 bool ascii_compatible_locale; /* locale uses ASCII characters as singletons */ 103 /* and don't use them as lead/trail units */ 104 105 zend_string *doc_comment; 106 uint32_t extra_fn_flags; 107 108 uint32_t compiler_options; /* set of ZEND_COMPILE_* constants */ 109 110 zend_oparray_context context; 111 zend_file_context file_context; 112 113 zend_arena *arena; 114 115 HashTable interned_strings; 116 117 const zend_encoding **script_encoding_list; 118 size_t script_encoding_list_size; 119 bool multibyte; 120 bool detect_unicode; 121 bool encoding_declared; 122 123 zend_ast *ast; 124 zend_arena *ast_arena; 125 126 zend_stack delayed_oplines_stack; 127 HashTable *memoized_exprs; 128 int memoize_mode; 129 130 void *map_ptr_real_base; 131 void *map_ptr_base; 132 size_t map_ptr_size; 133 size_t map_ptr_last; 134 135 HashTable *delayed_variance_obligations; 136 HashTable *delayed_autoloads; 137 HashTable *unlinked_uses; 138 zend_class_entry *current_linking_class; 139 140 uint32_t rtd_key_counter; 141 142 zend_stack short_circuiting_opnums; 143 }; 144 145 146 struct _zend_executor_globals { 147 zval uninitialized_zval; 148 zval error_zval; 149 150 /* symbol table cache */ 151 zend_array *symtable_cache[SYMTABLE_CACHE_SIZE]; 152 /* Pointer to one past the end of the symtable_cache */ 153 zend_array **symtable_cache_limit; 154 /* Pointer to first unused symtable_cache slot */ 155 zend_array **symtable_cache_ptr; 156 157 zend_array symbol_table; /* main symbol table */ 158 159 HashTable included_files; /* files already included */ 160 161 JMP_BUF *bailout; 162 163 int error_reporting; 164 int exit_status; 165 166 HashTable *function_table; /* function symbol table */ 167 HashTable *class_table; /* class table */ 168 HashTable *zend_constants; /* constants table */ 169 170 zval *vm_stack_top; 171 zval *vm_stack_end; 172 zend_vm_stack vm_stack; 173 size_t vm_stack_page_size; 174 175 struct _zend_execute_data *current_execute_data; 176 zend_class_entry *fake_scope; /* used to avoid checks accessing properties */ 177 178 uint32_t jit_trace_num; /* Used by tracing JIT to reference the currently running trace */ 179 180 zend_long precision; 181 182 int ticks_count; 183 184 uint32_t persistent_constants_count; 185 uint32_t persistent_functions_count; 186 uint32_t persistent_classes_count; 187 188 HashTable *in_autoload; 189 bool full_tables_cleanup; 190 191 /* for extended information support */ 192 bool no_extensions; 193 194 bool vm_interrupt; 195 bool timed_out; 196 zend_long hard_timeout; 197 198 #ifdef ZEND_WIN32 199 OSVERSIONINFOEX windows_version_info; 200 #endif 201 202 HashTable regular_list; 203 HashTable persistent_list; 204 205 int user_error_handler_error_reporting; 206 zval user_error_handler; 207 zval user_exception_handler; 208 zend_stack user_error_handlers_error_reporting; 209 zend_stack user_error_handlers; 210 zend_stack user_exception_handlers; 211 212 zend_error_handling_t error_handling; 213 zend_class_entry *exception_class; 214 215 /* timeout support */ 216 zend_long timeout_seconds; 217 218 int capture_warnings_during_sccp; 219 220 HashTable *ini_directives; 221 HashTable *modified_ini_directives; 222 zend_ini_entry *error_reporting_ini_entry; 223 224 zend_objects_store objects_store; 225 zend_object *exception, *prev_exception; 226 const zend_op *opline_before_exception; 227 zend_op exception_op[3]; 228 229 struct _zend_module_entry *current_module; 230 231 bool active; 232 zend_uchar flags; 233 234 zend_long assertions; 235 236 uint32_t ht_iterators_count; /* number of allocated slots */ 237 uint32_t ht_iterators_used; /* number of used slots */ 238 HashTableIterator *ht_iterators; 239 HashTableIterator ht_iterators_slots[16]; 240 241 void *saved_fpu_cw_ptr; 242 #if XPFPA_HAVE_CW 243 XPFPA_CW_DATATYPE saved_fpu_cw; 244 #endif 245 246 zend_function trampoline; 247 zend_op call_trampoline_op; 248 249 HashTable weakrefs; 250 251 bool exception_ignore_args; 252 zend_long exception_string_param_max_len; 253 254 zend_get_gc_buffer get_gc_buffer; 255 256 zend_fiber_context *main_fiber_context; 257 zend_fiber_context *current_fiber_context; 258 259 /* Active instance of Fiber. */ 260 zend_fiber *active_fiber; 261 262 /* Default fiber C stack size. */ 263 zend_long fiber_stack_size; 264 265 /* If record_errors is enabled, all emitted diagnostics will be recorded, 266 * in addition to being processed as usual. */ 267 bool record_errors; 268 uint32_t num_errors; 269 zend_error_info **errors; 270 271 #ifdef ZEND_MAX_EXECUTION_TIMERS 272 timer_t max_execution_timer_timer; 273 pid_t pid; 274 struct sigaction oldact; 275 #endif 276 277 void *reserved[ZEND_MAX_RESERVED_RESOURCES]; 278 }; 279 280 #define EG_FLAGS_INITIAL (0) 281 #define EG_FLAGS_IN_SHUTDOWN (1<<0) 282 #define EG_FLAGS_OBJECT_STORE_NO_REUSE (1<<1) 283 #define EG_FLAGS_IN_RESOURCE_SHUTDOWN (1<<2) 284 285 struct _zend_ini_scanner_globals { 286 zend_file_handle *yy_in; 287 zend_file_handle *yy_out; 288 289 unsigned int yy_leng; 290 unsigned char *yy_start; 291 unsigned char *yy_text; 292 unsigned char *yy_cursor; 293 unsigned char *yy_marker; 294 unsigned char *yy_limit; 295 int yy_state; 296 zend_stack state_stack; 297 298 zend_string *filename; 299 int lineno; 300 301 /* Modes are: ZEND_INI_SCANNER_NORMAL, ZEND_INI_SCANNER_RAW, ZEND_INI_SCANNER_TYPED */ 302 int scanner_mode; 303 }; 304 305 typedef enum { 306 ON_TOKEN, 307 ON_FEEDBACK, 308 ON_STOP 309 } zend_php_scanner_event; 310 311 struct _zend_php_scanner_globals { 312 zend_file_handle *yy_in; 313 zend_file_handle *yy_out; 314 315 unsigned int yy_leng; 316 unsigned char *yy_start; 317 unsigned char *yy_text; 318 unsigned char *yy_cursor; 319 unsigned char *yy_marker; 320 unsigned char *yy_limit; 321 int yy_state; 322 zend_stack state_stack; 323 zend_ptr_stack heredoc_label_stack; 324 zend_stack nest_location_stack; /* for syntax error reporting */ 325 bool heredoc_scan_ahead; 326 int heredoc_indentation; 327 bool heredoc_indentation_uses_spaces; 328 329 /* original (unfiltered) script */ 330 unsigned char *script_org; 331 size_t script_org_size; 332 333 /* filtered script */ 334 unsigned char *script_filtered; 335 size_t script_filtered_size; 336 337 /* input/output filters */ 338 zend_encoding_filter input_filter; 339 zend_encoding_filter output_filter; 340 const zend_encoding *script_encoding; 341 342 /* initial string length after scanning to first variable */ 343 int scanned_string_len; 344 345 /* hooks */ 346 void (*on_event)( 347 zend_php_scanner_event event, int token, int line, 348 const char *text, size_t length, void *context); 349 void *on_event_context; 350 }; 351 352 #endif /* ZEND_GLOBALS_H */ 353
