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eaafb69eea
symtable_cache_ptr now points to the first unused symtable_cache entry, rahter than the last used one. This avoids taking a pointer to the minus first element of the array, which is UB. Instead we take a pointer to the end plus one, which is not UB.
311 lines
7.5 KiB
C
311 lines
7.5 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@php.net> |
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| Zeev Suraski <zeev@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifndef ZEND_GLOBALS_H
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#define ZEND_GLOBALS_H
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#include <setjmp.h>
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#include "zend_globals_macros.h"
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#include "zend_stack.h"
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#include "zend_ptr_stack.h"
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#include "zend_hash.h"
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#include "zend_llist.h"
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#include "zend_objects.h"
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#include "zend_objects_API.h"
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#include "zend_modules.h"
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#include "zend_float.h"
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#include "zend_multibyte.h"
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#include "zend_multiply.h"
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#include "zend_arena.h"
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/* Define ZTS if you want a thread-safe Zend */
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/*#undef ZTS*/
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#ifdef ZTS
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BEGIN_EXTERN_C()
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ZEND_API extern int compiler_globals_id;
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ZEND_API extern int executor_globals_id;
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ZEND_API extern size_t compiler_globals_offset;
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ZEND_API extern size_t executor_globals_offset;
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END_EXTERN_C()
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#endif
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#define SYMTABLE_CACHE_SIZE 32
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#include "zend_compile.h"
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/* excpt.h on Digital Unix 4.0 defines function_table */
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#undef function_table
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typedef struct _zend_vm_stack *zend_vm_stack;
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typedef struct _zend_ini_entry zend_ini_entry;
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struct _zend_compiler_globals {
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zend_stack loop_var_stack;
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zend_class_entry *active_class_entry;
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zend_string *compiled_filename;
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int zend_lineno;
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zend_op_array *active_op_array;
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HashTable *function_table; /* function symbol table */
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HashTable *class_table; /* class table */
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HashTable filenames_table;
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HashTable *auto_globals;
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zend_bool parse_error;
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zend_bool in_compilation;
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zend_bool short_tags;
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zend_bool unclean_shutdown;
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zend_bool ini_parser_unbuffered_errors;
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zend_llist open_files;
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struct _zend_ini_parser_param *ini_parser_param;
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uint32_t start_lineno;
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zend_bool increment_lineno;
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zend_string *doc_comment;
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uint32_t extra_fn_flags;
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uint32_t compiler_options; /* set of ZEND_COMPILE_* constants */
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zend_oparray_context context;
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zend_file_context file_context;
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zend_arena *arena;
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HashTable interned_strings;
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const zend_encoding **script_encoding_list;
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size_t script_encoding_list_size;
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zend_bool multibyte;
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zend_bool detect_unicode;
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zend_bool encoding_declared;
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zend_ast *ast;
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zend_arena *ast_arena;
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zend_stack delayed_oplines_stack;
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HashTable *memoized_exprs;
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int memoize_mode;
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void *map_ptr_base;
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size_t map_ptr_size;
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size_t map_ptr_last;
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HashTable *delayed_variance_obligations;
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HashTable *delayed_autoloads;
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};
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struct _zend_executor_globals {
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zval uninitialized_zval;
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zval error_zval;
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/* symbol table cache */
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zend_array *symtable_cache[SYMTABLE_CACHE_SIZE];
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/* Pointer to one past the end of the symtable_cache */
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zend_array **symtable_cache_limit;
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/* Pointer to first unused symtable_cache slot */
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zend_array **symtable_cache_ptr;
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zend_array symbol_table; /* main symbol table */
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HashTable included_files; /* files already included */
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JMP_BUF *bailout;
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int error_reporting;
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int exit_status;
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HashTable *function_table; /* function symbol table */
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HashTable *class_table; /* class table */
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HashTable *zend_constants; /* constants table */
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zval *vm_stack_top;
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zval *vm_stack_end;
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zend_vm_stack vm_stack;
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size_t vm_stack_page_size;
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struct _zend_execute_data *current_execute_data;
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zend_class_entry *fake_scope; /* used to avoid checks accessing properties */
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zend_long precision;
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int ticks_count;
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uint32_t persistent_constants_count;
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uint32_t persistent_functions_count;
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uint32_t persistent_classes_count;
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HashTable *in_autoload;
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zend_function *autoload_func;
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zend_bool full_tables_cleanup;
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/* for extended information support */
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zend_bool no_extensions;
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zend_bool vm_interrupt;
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zend_bool timed_out;
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zend_long hard_timeout;
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#ifdef ZEND_WIN32
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OSVERSIONINFOEX windows_version_info;
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#endif
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HashTable regular_list;
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HashTable persistent_list;
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int user_error_handler_error_reporting;
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zval user_error_handler;
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zval user_exception_handler;
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zend_stack user_error_handlers_error_reporting;
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zend_stack user_error_handlers;
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zend_stack user_exception_handlers;
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zend_error_handling_t error_handling;
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zend_class_entry *exception_class;
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/* timeout support */
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zend_long timeout_seconds;
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int lambda_count;
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HashTable *ini_directives;
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HashTable *modified_ini_directives;
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zend_ini_entry *error_reporting_ini_entry;
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zend_objects_store objects_store;
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zend_object *exception, *prev_exception;
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const zend_op *opline_before_exception;
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zend_op exception_op[3];
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struct _zend_module_entry *current_module;
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zend_bool active;
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zend_uchar flags;
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zend_long assertions;
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uint32_t ht_iterators_count; /* number of allocatd slots */
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uint32_t ht_iterators_used; /* number of used slots */
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HashTableIterator *ht_iterators;
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HashTableIterator ht_iterators_slots[16];
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void *saved_fpu_cw_ptr;
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#if XPFPA_HAVE_CW
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XPFPA_CW_DATATYPE saved_fpu_cw;
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#endif
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zend_function trampoline;
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zend_op call_trampoline_op;
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zend_bool each_deprecation_thrown;
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HashTable weakrefs;
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void *reserved[ZEND_MAX_RESERVED_RESOURCES];
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};
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#define EG_FLAGS_INITIAL (0)
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#define EG_FLAGS_IN_SHUTDOWN (1<<0)
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#define EG_FLAGS_OBJECT_STORE_NO_REUSE (1<<1)
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struct _zend_ini_scanner_globals {
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zend_file_handle *yy_in;
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zend_file_handle *yy_out;
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unsigned int yy_leng;
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unsigned char *yy_start;
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unsigned char *yy_text;
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unsigned char *yy_cursor;
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unsigned char *yy_marker;
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unsigned char *yy_limit;
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int yy_state;
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zend_stack state_stack;
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char *filename;
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int lineno;
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/* Modes are: ZEND_INI_SCANNER_NORMAL, ZEND_INI_SCANNER_RAW, ZEND_INI_SCANNER_TYPED */
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int scanner_mode;
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};
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typedef enum {
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ON_TOKEN,
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ON_FEEDBACK,
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ON_STOP
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} zend_php_scanner_event;
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struct _zend_php_scanner_globals {
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zend_file_handle *yy_in;
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zend_file_handle *yy_out;
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unsigned int yy_leng;
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unsigned char *yy_start;
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unsigned char *yy_text;
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unsigned char *yy_cursor;
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unsigned char *yy_marker;
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unsigned char *yy_limit;
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int yy_state;
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zend_stack state_stack;
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zend_ptr_stack heredoc_label_stack;
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zend_bool heredoc_scan_ahead;
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int heredoc_indentation;
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zend_bool heredoc_indentation_uses_spaces;
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/* original (unfiltered) script */
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unsigned char *script_org;
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size_t script_org_size;
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/* filtered script */
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unsigned char *script_filtered;
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size_t script_filtered_size;
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/* input/output filters */
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zend_encoding_filter input_filter;
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zend_encoding_filter output_filter;
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const zend_encoding *script_encoding;
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/* initial string length after scanning to first variable */
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int scanned_string_len;
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/* hooks */
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void (*on_event)(zend_php_scanner_event event, int token, int line, void *context);
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void *on_event_context;
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};
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#endif /* ZEND_GLOBALS_H */
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