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php-src/Zend/zend_compile.h
Dmitry Stogov 14e29f5146 Reduced size of zend_op on 64-bit systems. 
the main idea - the smaller the zend_op structure, the lees memory traffic is required to load VM instructions during execution. The patch reduces the size of each opcode from 48 to 32 bytes (saves 16 bytes for each opcode, and applications use thousands of opoceds). This reduced the number of CPU cache misses by 12% and improved performance of real-life apps by 1-2%.

The patch affects how constants and jump targets are represented in VM during execution. Previously they were implemented as absolute 64-bit pointers. Now they are relative 32-bit offsets.

In run-time constant now should be accessed as:
  RT_CONSTANT(op_array, opine->op1) instead of opline->op1.zv
  EX_CONSTANT(opline->op1) instead of opline->op1.zv

Jump targets:
  OP_JMP_ADDR(opline, opline->op2) instead of opline->op2.jmp_addr

The patch doesn't change zend_op representation for 32-bit systems. They still use absolute addresses. The compile-time representation is also kept the same.
2014-12-12 10:19:41 +03:00

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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef ZEND_COMPILE_H
#define ZEND_COMPILE_H
#include "zend.h"
#include "zend_ast.h"
#ifdef HAVE_STDARG_H
# include <stdarg.h>
#endif
#include "zend_llist.h"
#define DEBUG_ZEND 0
#define SET_UNUSED(op) op ## _type = IS_UNUSED
#define RESET_DOC_COMMENT() do { \
if (CG(doc_comment)) { \
zend_string_release(CG(doc_comment)); \
CG(doc_comment) = NULL; \
} \
} while (0)
typedef struct _zend_op_array zend_op_array;
typedef struct _zend_op zend_op;
typedef struct _zend_compiler_context {
uint32_t opcodes_size;
int vars_size;
int literals_size;
int current_brk_cont;
int backpatch_count;
int in_finally;
uint32_t fast_call_var;
HashTable *labels;
} zend_compiler_context;
/* On 64-bi systems less optimal, but more compact VM code leads to better
* performance. So on 32-bit systems we use absolute addresses for jump
* targets and constants, but on 64-bit systems realtive 32-bit offsets */
#if SIZEOF_SIZE_T == 4
# define ZEND_USE_ABS_JMP_ADDR 1
# define ZEND_USE_ABS_CONST_ADDR 1
# define ZEND_EX_USE_LITERALS 0
# define ZEND_EX_USE_RUN_TIME_CACHE 1
#else
# define ZEND_USE_ABS_JMP_ADDR 0
# define ZEND_USE_ABS_CONST_ADDR 0
# define ZEND_EX_USE_LITERALS 1
# define ZEND_EX_USE_RUN_TIME_CACHE 1
#endif
typedef union _znode_op {
uint32_t constant;
uint32_t var;
uint32_t num;
uint32_t opline_num; /* Needs to be signed */
#if ZEND_USE_ABS_JMP_ADDR
zend_op *jmp_addr;
#else
uint32_t jmp_offset;
#endif
#if ZEND_USE_ABS_CONST_ADDR
zval *zv;
#endif
} znode_op;
typedef struct _znode { /* used only during compilation */
int op_type;
union {
znode_op op;
zval constant; /* replaced by literal/zv */
} u;
} znode;
/* Temporarily defined here, to avoid header ordering issues */
typedef struct _zend_ast_znode {
zend_ast_kind kind;
zend_ast_attr attr;
uint32_t lineno;
znode node;
} zend_ast_znode;
ZEND_API zend_ast *zend_ast_create_znode(znode *node);
static zend_always_inline znode *zend_ast_get_znode(zend_ast *ast) {
return &((zend_ast_znode *) ast)->node;
}
typedef union _zend_parser_stack_elem {
zend_ast *ast;
zend_string *str;
zend_ulong num;
} zend_parser_stack_elem;
void zend_compile_top_stmt(zend_ast *ast TSRMLS_DC);
void zend_compile_stmt(zend_ast *ast TSRMLS_DC);
void zend_compile_expr(znode *node, zend_ast *ast TSRMLS_DC);
void zend_compile_var(znode *node, zend_ast *ast, uint32_t type TSRMLS_DC);
void zend_eval_const_expr(zend_ast **ast_ptr TSRMLS_DC);
void zend_const_expr_to_zval(zval *result, zend_ast *ast TSRMLS_DC);
#define ZEND_OPCODE_HANDLER_ARGS zend_execute_data *execute_data TSRMLS_DC
#define ZEND_OPCODE_HANDLER_ARGS_PASSTHRU execute_data TSRMLS_CC
typedef int (*user_opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS);
typedef int (ZEND_FASTCALL *opcode_handler_t) (ZEND_OPCODE_HANDLER_ARGS);
extern ZEND_API opcode_handler_t *zend_opcode_handlers;
struct _zend_op {
opcode_handler_t handler;
znode_op op1;
znode_op op2;
znode_op result;
uint32_t extended_value;
uint32_t lineno;
zend_uchar opcode;
zend_uchar op1_type;
zend_uchar op2_type;
zend_uchar result_type;
};
typedef struct _zend_brk_cont_element {
int start;
int cont;
int brk;
int parent;
} zend_brk_cont_element;
typedef struct _zend_label {
int brk_cont;
uint32_t opline_num;
} zend_label;
typedef struct _zend_try_catch_element {
uint32_t try_op;
uint32_t catch_op; /* ketchup! */
uint32_t finally_op;
uint32_t finally_end;
} zend_try_catch_element;
#if SIZEOF_ZEND_LONG == 8
# ifdef _WIN32
# define THIS_HASHVAL 6385726429Ui64
# else
# define THIS_HASHVAL 6385726429ULL
# endif
#else
#define THIS_HASHVAL 2090759133UL
#endif
/* method flags (types) */
#define ZEND_ACC_STATIC 0x01
#define ZEND_ACC_ABSTRACT 0x02
#define ZEND_ACC_FINAL 0x04
#define ZEND_ACC_IMPLEMENTED_ABSTRACT 0x08
/* class flags (types) */
/* ZEND_ACC_IMPLICIT_ABSTRACT_CLASS is used for abstract classes (since it is set by any abstract method even interfaces MAY have it set, too). */
/* ZEND_ACC_EXPLICIT_ABSTRACT_CLASS denotes that a class was explicitly defined as abstract by using the keyword. */
#define ZEND_ACC_IMPLICIT_ABSTRACT_CLASS 0x10
#define ZEND_ACC_EXPLICIT_ABSTRACT_CLASS 0x20
#define ZEND_ACC_FINAL_CLASS 0x40
#define ZEND_ACC_INTERFACE 0x80
#define ZEND_ACC_TRAIT 0x120
/* method flags (visibility) */
/* The order of those must be kept - public < protected < private */
#define ZEND_ACC_PUBLIC 0x100
#define ZEND_ACC_PROTECTED 0x200
#define ZEND_ACC_PRIVATE 0x400
#define ZEND_ACC_PPP_MASK (ZEND_ACC_PUBLIC | ZEND_ACC_PROTECTED | ZEND_ACC_PRIVATE)
#define ZEND_ACC_CHANGED 0x800
#define ZEND_ACC_IMPLICIT_PUBLIC 0x1000
/* method flags (special method detection) */
#define ZEND_ACC_CTOR 0x2000
#define ZEND_ACC_DTOR 0x4000
#define ZEND_ACC_CLONE 0x8000
/* method flag (bc only), any method that has this flag can be used statically and non statically. */
#define ZEND_ACC_ALLOW_STATIC 0x10000
/* shadow of parent's private method/property */
#define ZEND_ACC_SHADOW 0x20000
/* deprecation flag */
#define ZEND_ACC_DEPRECATED 0x40000
/* class implement interface(s) flag */
#define ZEND_ACC_IMPLEMENT_INTERFACES 0x80000
#define ZEND_ACC_IMPLEMENT_TRAITS 0x400000
/* class constants updated */
#define ZEND_ACC_CONSTANTS_UPDATED 0x100000
/* user class has methods with static variables */
#define ZEND_HAS_STATIC_IN_METHODS 0x800000
#define ZEND_ACC_CLOSURE 0x100000
#define ZEND_ACC_GENERATOR 0x800000
/* function flag for internal user call handlers __call, __callstatic */
#define ZEND_ACC_CALL_VIA_HANDLER 0x200000
/* disable inline caching */
#define ZEND_ACC_NEVER_CACHE 0x400000
#define ZEND_ACC_VARIADIC 0x1000000
#define ZEND_ACC_RETURN_REFERENCE 0x4000000
#define ZEND_ACC_DONE_PASS_TWO 0x8000000
/* function has arguments with type hinting */
#define ZEND_ACC_HAS_TYPE_HINTS 0x10000000
/* op_array has finally blocks */
#define ZEND_ACC_HAS_FINALLY_BLOCK 0x20000000
/* internal function is allocated at arena */
#define ZEND_ACC_ARENA_ALLOCATED 0x20000000
#define ZEND_CE_IS_TRAIT(ce) (((ce)->ce_flags & ZEND_ACC_TRAIT) == ZEND_ACC_TRAIT)
char *zend_visibility_string(uint32_t fn_flags);
typedef struct _zend_property_info {
uint32_t offset; /* property offset for object properties or
property index for static properties */
uint32_t flags;
zend_string *name;
zend_string *doc_comment;
zend_class_entry *ce;
} zend_property_info;
#define OBJ_PROP(obj, offset) \
((zval*)((char*)(obj) + offset))
#define OBJ_PROP_NUM(obj, num) \
(&(obj)->properties_table[(num)])
#define OBJ_PROP_TO_OFFSET(num) \
((uint32_t)(zend_uintptr_t)OBJ_PROP_NUM(((zend_object*)NULL), num))
#define OBJ_PROP_TO_NUM(offset) \
((offset - OBJ_PROP_TO_OFFSET(0)) / sizeof(zval))
/* arg_info for internal functions */
typedef struct _zend_internal_arg_info {
const char *name;
const char *class_name;
zend_uchar type_hint;
zend_uchar pass_by_reference;
zend_bool allow_null;
zend_bool is_variadic;
} zend_internal_arg_info;
/* arg_info for user functions */
typedef struct _zend_arg_info {
zend_string *name;
zend_string *class_name;
zend_uchar type_hint;
zend_uchar pass_by_reference;
zend_bool allow_null;
zend_bool is_variadic;
} zend_arg_info;
/* the following structure repeats the layout of zend_internal_arg_info,
* but its fields have different meaning. It's used as the first element of
* arg_info array to define properties of internal functions.
*/
typedef struct _zend_internal_function_info {
zend_uintptr_t required_num_args;
const char *_class_name;
zend_uchar _type_hint;
zend_bool return_reference;
zend_bool _allow_null;
zend_bool _is_variadic;
} zend_internal_function_info;
struct _zend_op_array {
/* Common elements */
zend_uchar type;
uint32_t fn_flags;
zend_string *function_name;
zend_class_entry *scope;
zend_function *prototype;
uint32_t num_args;
uint32_t required_num_args;
zend_arg_info *arg_info;
/* END of common elements */
uint32_t *refcount;
uint32_t this_var;
uint32_t last;
zend_op *opcodes;
int last_var;
uint32_t T;
zend_string **vars;
int last_brk_cont;
int last_try_catch;
zend_brk_cont_element *brk_cont_array;
zend_try_catch_element *try_catch_array;
/* static variables support */
HashTable *static_variables;
zend_string *filename;
uint32_t line_start;
uint32_t line_end;
zend_string *doc_comment;
uint32_t early_binding; /* the linked list of delayed declarations */
int last_literal;
zval *literals;
int last_cache_slot;
void **run_time_cache;
void *reserved[ZEND_MAX_RESERVED_RESOURCES];
};
#define ZEND_RETURN_VALUE 0
#define ZEND_RETURN_REFERENCE 1
typedef struct _zend_internal_function {
/* Common elements */
zend_uchar type;
uint32_t fn_flags;
zend_string* function_name;
zend_class_entry *scope;
zend_function *prototype;
uint32_t num_args;
uint32_t required_num_args;
zend_internal_arg_info *arg_info;
/* END of common elements */
void (*handler)(INTERNAL_FUNCTION_PARAMETERS);
struct _zend_module_entry *module;
} zend_internal_function;
#define ZEND_FN_SCOPE_NAME(function) ((function) && (function)->common.scope ? (function)->common.scope->name->val : "")
union _zend_function {
zend_uchar type; /* MUST be the first element of this struct! */
struct {
zend_uchar type; /* never used */
uint32_t fn_flags;
zend_string *function_name;
zend_class_entry *scope;
union _zend_function *prototype;
uint32_t num_args;
uint32_t required_num_args;
zend_arg_info *arg_info;
} common;
zend_op_array op_array;
zend_internal_function internal_function;
};
typedef enum _zend_call_kind {
ZEND_CALL_NESTED_FUNCTION, /* stackless VM call to function */
ZEND_CALL_NESTED_CODE, /* stackless VM call to include/require/eval */
ZEND_CALL_TOP_FUNCTION, /* direct VM call to function from external C code */
ZEND_CALL_TOP_CODE /* direct VM call to "main" code from external C code */
} zend_call_kind;
struct _zend_execute_data {
const zend_op *opline; /* executed opline */
zend_execute_data *call; /* current call */
zval *return_value;
zend_function *func; /* executed op_array */
zval This;
#if ZEND_EX_USE_RUN_TIME_CACHE
void **run_time_cache;
#endif
#if ZEND_EX_USE_LITERALS
zval *literals;
#endif
zend_class_entry *called_scope;
zend_execute_data *prev_execute_data;
zend_array *symbol_table;
};
#define ZEND_CALL_FUNCTION (0 << 0)
#define ZEND_CALL_CODE (1 << 0)
#define ZEND_CALL_NESTED (0 << 1)
#define ZEND_CALL_TOP (1 << 1)
#define ZEND_CALL_CTOR (1 << 2)
#define ZEND_CALL_CTOR_RESULT_UNUSED (1 << 3)
#define ZEND_CALL_INFO(call) \
(Z_TYPE_INFO((call)->This) >> 24)
#define ZEND_CALL_KIND(call) \
(ZEND_CALL_INFO(call) & (ZEND_CALL_CODE | ZEND_CALL_TOP))
#define ZEND_SET_CALL_INFO(call, info) do { \
Z_TYPE_INFO((call)->This) = IS_OBJECT_EX | ((info) << 24); \
} while (0)
#define ZEND_ADD_CALL_FLAG(call, info) do { \
Z_TYPE_INFO((call)->This) |= ((info) << 24); \
} while (0)
#define ZEND_CALL_NUM_ARGS(call) \
(call)->This.u2.num_args
#define ZEND_CALL_FRAME_SLOT \
((ZEND_MM_ALIGNED_SIZE(sizeof(zend_execute_data)) + ZEND_MM_ALIGNED_SIZE(sizeof(zval)) - 1) / ZEND_MM_ALIGNED_SIZE(sizeof(zval)))
#define ZEND_CALL_VAR(call, n) \
((zval*)(((char*)(call)) + ((int)(n))))
#define ZEND_CALL_VAR_NUM(call, n) \
(((zval*)(call)) + (ZEND_CALL_FRAME_SLOT + ((int)(n))))
#define ZEND_CALL_ARG(call, n) \
ZEND_CALL_VAR_NUM(call, ((int)(n)) - 1)
#define EX(element) ((execute_data)->element)
#define EX_CALL_INFO() ZEND_CALL_INFO(execute_data)
#define EX_CALL_KIND() ZEND_CALL_KIND(execute_data)
#define EX_NUM_ARGS() ZEND_CALL_NUM_ARGS(execute_data)
#define EX_VAR(n) ZEND_CALL_VAR(execute_data, n)
#define EX_VAR_NUM(n) ZEND_CALL_VAR_NUM(execute_data, n)
#define EX_VAR_TO_NUM(n) (ZEND_CALL_VAR(NULL, n) - ZEND_CALL_VAR_NUM(NULL, 0))
#define ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, opline_num) \
((char*)&(op_array)->opcodes[opline_num] - (char*)(opline))
#define ZEND_OFFSET_TO_OPLINE(base, offset) \
((zend_op*)(((char*)(base)) + (int)offset))
#define ZEND_OFFSET_TO_OPLINE_NUM(op_array, base, offset) \
(ZEND_OFFSET_TO_OPLINE(base, offset) - op_array->opcodes)
#if ZEND_USE_ABS_JMP_ADDR
/* run-time jump target */
# define OP_JMP_ADDR(opline, node) \
(node).jmp_addr
/* convert jump target from compile-time to run-time */
# define ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, node) do { \
(node).jmp_addr = (op_array)->opcodes + (node).opline_num; \
} while (0)
/* convert jump target back from run-time to compile-time */
# define ZEND_PASS_TWO_UNDO_JMP_TARGET(op_array, opline, node) do { \
(node).opline_num = (node).jmp_addr - (op_array)->opcodes; \
} while (0)
#else
/* run-time jump target */
# define OP_JMP_ADDR(opline, node) \
ZEND_OFFSET_TO_OPLINE(opline, (node).jmp_offset)
/* convert jump target from compile-time to run-time */
# define ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, node) do { \
(node).jmp_offset = ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, (node).opline_num); \
} while (0)
/* convert jump target back from run-time to compile-time */
# define ZEND_PASS_TWO_UNDO_JMP_TARGET(op_array, opline, node) do { \
(node).opline_num = ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, (node).jmp_offset); \
} while (0)
#endif
/* constant-time constant */
# define CT_CONSTANT_EX(op_array, num) \
((op_array)->literals + (num))
# define CT_CONSTANT(node) \
CT_CONSTANT_EX(CG(active_op_array), (node).constant)
#if ZEND_USE_ABS_CONST_ADDR
/* run-time constant */
# define RT_CONSTANT_EX(base, node) \
(node).zv
/* convert constant from compile-time to run-time */
# define ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, node) do { \
(node).zv = CT_CONSTANT_EX(op_array, (node).constant); \
} while (0)
/* convert constant back from run-time to compile-time */
# define ZEND_PASS_TWO_UNDO_CONSTANT(op_array, node) do { \
(node).constant = (node).zv - (op_array)->literals; \
} while (0)
#else
/* run-time constant */
# define RT_CONSTANT_EX(base, node) \
((zval*)(((char*)(base)) + (node).constant))
/* convert constant from compile-time to run-time */
# define ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, node) do { \
(node).constant *= sizeof(zval); \
} while (0)
/* convert constant back from run-time to compile-time (do nothing) */
# define ZEND_PASS_TWO_UNDO_CONSTANT(op_array, node) do { \
(node).constant /= sizeof(zval); \
} while (0)
#endif
#if ZEND_EX_USE_LITERALS
# define EX_LITERALS() \
EX(literals)
# define EX_LOAD_LITERALS(op_array) do { \
EX(literals) = (op_array)->literals; \
} while (0)
#else
# define EX_LITERALS() \
EX(func)->op_array.literals
# define EX_LOAD_LITERALS(op_array) do { \
} while (0)
#endif
/* run-time constant */
#define RT_CONSTANT(op_array, node) \
RT_CONSTANT_EX((op_array)->literals, node)
/* constant in currently executed function */
#define EX_CONSTANT(node) \
RT_CONSTANT_EX(EX_LITERALS(), node)
#if ZEND_EX_USE_RUN_TIME_CACHE
# define EX_RUN_TIME_CACHE() \
EX(run_time_cache)
# define EX_LOAD_RUN_TIME_CACHE(op_array) do { \
EX(run_time_cache) = (op_array)->run_time_cache; \
} while (0)
#else
# define EX_RUN_TIME_CACHE() \
EX(func)->op_array.run_time_cache
# define EX_LOAD_RUN_TIME_CACHE(op_array) do { \
} while (0)
#endif
#define IS_CONST (1<<0)
#define IS_TMP_VAR (1<<1)
#define IS_VAR (1<<2)
#define IS_UNUSED (1<<3) /* Unused variable */
#define IS_CV (1<<4) /* Compiled variable */
#define EXT_TYPE_UNUSED (1<<5)
#include "zend_globals.h"
BEGIN_EXTERN_C()
void init_compiler(TSRMLS_D);
void shutdown_compiler(TSRMLS_D);
void zend_init_compiler_data_structures(TSRMLS_D);
void zend_init_compiler_context(TSRMLS_D);
extern ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type TSRMLS_DC);
extern ZEND_API zend_op_array *(*zend_compile_string)(zval *source_string, char *filename TSRMLS_DC);
ZEND_API int lex_scan(zval *zendlval TSRMLS_DC);
void startup_scanner(TSRMLS_D);
void shutdown_scanner(TSRMLS_D);
ZEND_API zend_string *zend_set_compiled_filename(zend_string *new_compiled_filename TSRMLS_DC);
ZEND_API void zend_restore_compiled_filename(zend_string *original_compiled_filename TSRMLS_DC);
ZEND_API zend_string *zend_get_compiled_filename(TSRMLS_D);
ZEND_API int zend_get_compiled_lineno(TSRMLS_D);
ZEND_API size_t zend_get_scanned_file_offset(TSRMLS_D);
ZEND_API zend_string *zend_get_compiled_variable_name(const zend_op_array *op_array, uint32_t var);
#ifdef ZTS
const char *zend_get_zendtext(TSRMLS_D);
int zend_get_zendleng(TSRMLS_D);
#endif
typedef int (*unary_op_type)(zval *, zval * TSRMLS_DC);
typedef int (*binary_op_type)(zval *, zval *, zval * TSRMLS_DC);
ZEND_API unary_op_type get_unary_op(int opcode);
ZEND_API binary_op_type get_binary_op(int opcode);
void zend_stop_lexing(TSRMLS_D);
void zend_emit_final_return(zval *zv TSRMLS_DC);
zend_ast *zend_ast_append_str(zend_ast *left, zend_ast *right);
uint32_t zend_add_member_modifier(uint32_t flags, uint32_t new_flag);
zend_ast *zend_ast_append_doc_comment(zend_ast *list TSRMLS_DC);
void zend_handle_encoding_declaration(zend_ast *ast TSRMLS_DC);
/* parser-driven code generators */
void zend_do_free(znode *op1 TSRMLS_DC);
ZEND_API int do_bind_function(const zend_op_array *op_array, const zend_op *opline, HashTable *function_table, zend_bool compile_time TSRMLS_DC);
ZEND_API zend_class_entry *do_bind_class(const zend_op_array *op_array, const zend_op *opline, HashTable *class_table, zend_bool compile_time TSRMLS_DC);
ZEND_API zend_class_entry *do_bind_inherited_class(const zend_op_array *op_array, const zend_op *opline, HashTable *class_table, zend_class_entry *parent_ce, zend_bool compile_time TSRMLS_DC);
ZEND_API void zend_do_delayed_early_binding(const zend_op_array *op_array TSRMLS_DC);
/* Functions for a null terminated pointer list, used for traits parsing and compilation */
void zend_init_list(void *result, void *item TSRMLS_DC);
void zend_add_to_list(void *result, void *item TSRMLS_DC);
void zend_do_extended_info(TSRMLS_D);
void zend_do_extended_fcall_begin(TSRMLS_D);
void zend_do_extended_fcall_end(TSRMLS_D);
void zend_verify_namespace(TSRMLS_D);
void zend_do_end_compilation(TSRMLS_D);
void zend_resolve_goto_label(zend_op_array *op_array, zend_op *opline, int pass2 TSRMLS_DC);
void zend_release_labels(int temporary TSRMLS_DC);
ZEND_API void function_add_ref(zend_function *function);
#define INITIAL_OP_ARRAY_SIZE 64
/* helper functions in zend_language_scanner.l */
ZEND_API zend_op_array *compile_file(zend_file_handle *file_handle, int type TSRMLS_DC);
ZEND_API zend_op_array *compile_string(zval *source_string, char *filename TSRMLS_DC);
ZEND_API zend_op_array *compile_filename(int type, zval *filename TSRMLS_DC);
ZEND_API int zend_execute_scripts(int type TSRMLS_DC, zval *retval, int file_count, ...);
ZEND_API int open_file_for_scanning(zend_file_handle *file_handle TSRMLS_DC);
ZEND_API void init_op_array(zend_op_array *op_array, zend_uchar type, int initial_ops_size TSRMLS_DC);
ZEND_API void destroy_op_array(zend_op_array *op_array TSRMLS_DC);
ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle TSRMLS_DC);
ZEND_API void zend_cleanup_user_class_data(zend_class_entry *ce TSRMLS_DC);
ZEND_API void zend_cleanup_internal_class_data(zend_class_entry *ce TSRMLS_DC);
ZEND_API void zend_cleanup_internal_classes(TSRMLS_D);
ZEND_API void zend_cleanup_op_array_data(zend_op_array *op_array);
ZEND_API int clean_non_persistent_function_full(zval *zv TSRMLS_DC);
ZEND_API int clean_non_persistent_class_full(zval *zv TSRMLS_DC);
ZEND_API void destroy_zend_function(zend_function *function TSRMLS_DC);
ZEND_API void zend_function_dtor(zval *zv);
ZEND_API void destroy_zend_class(zval *zv);
void zend_class_add_ref(zval *zv);
ZEND_API zend_string *zend_mangle_property_name(const char *src1, size_t src1_length, const char *src2, size_t src2_length, int internal);
#define zend_unmangle_property_name(mangled_property, class_name, prop_name) \
zend_unmangle_property_name_ex(mangled_property, class_name, prop_name, NULL)
ZEND_API int zend_unmangle_property_name_ex(const zend_string *name, const char **class_name, const char **prop_name, size_t *prop_len);
#define ZEND_FUNCTION_DTOR zend_function_dtor
#define ZEND_CLASS_DTOR destroy_zend_class
zend_op *get_next_op(zend_op_array *op_array TSRMLS_DC);
void init_op(zend_op *op TSRMLS_DC);
int get_next_op_number(zend_op_array *op_array);
int print_class(zend_class_entry *class_entry TSRMLS_DC);
void print_op_array(zend_op_array *op_array, int optimizations);
ZEND_API int pass_two(zend_op_array *op_array TSRMLS_DC);
zend_brk_cont_element *get_next_brk_cont_element(zend_op_array *op_array);
ZEND_API zend_bool zend_is_compiling(TSRMLS_D);
ZEND_API char *zend_make_compiled_string_description(const char *name TSRMLS_DC);
ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify_handlers TSRMLS_DC);
uint32_t zend_get_class_fetch_type(zend_string *name);
typedef zend_bool (*zend_auto_global_callback)(zend_string *name TSRMLS_DC);
typedef struct _zend_auto_global {
zend_string *name;
zend_auto_global_callback auto_global_callback;
zend_bool jit;
zend_bool armed;
} zend_auto_global;
ZEND_API int zend_register_auto_global(zend_string *name, zend_bool jit, zend_auto_global_callback auto_global_callback TSRMLS_DC);
ZEND_API void zend_activate_auto_globals(TSRMLS_D);
ZEND_API zend_bool zend_is_auto_global(zend_string *name TSRMLS_DC);
ZEND_API size_t zend_dirname(char *path, size_t len);
int zendlex(zend_parser_stack_elem *elem TSRMLS_DC);
int zend_add_literal(zend_op_array *op_array, zval *zv TSRMLS_DC);
/* BEGIN: OPCODES */
#include "zend_vm_opcodes.h"
#define ZEND_OP_DATA 137
/* END: OPCODES */
/* class fetches */
#define ZEND_FETCH_CLASS_DEFAULT 0
#define ZEND_FETCH_CLASS_SELF 1
#define ZEND_FETCH_CLASS_PARENT 2
#define ZEND_FETCH_CLASS_STATIC 3
#define ZEND_FETCH_CLASS_AUTO 4
#define ZEND_FETCH_CLASS_INTERFACE 5
#define ZEND_FETCH_CLASS_TRAIT 6
#define ZEND_FETCH_CLASS_MASK 0x0f
#define ZEND_FETCH_CLASS_NO_AUTOLOAD 0x80
#define ZEND_FETCH_CLASS_SILENT 0x0100
/* variable parsing type (compile-time) */
#define ZEND_PARSED_MEMBER (1<<0)
#define ZEND_PARSED_METHOD_CALL (1<<1)
#define ZEND_PARSED_STATIC_MEMBER (1<<2)
#define ZEND_PARSED_FUNCTION_CALL (1<<3)
#define ZEND_PARSED_VARIABLE (1<<4)
#define ZEND_PARSED_REFERENCE_VARIABLE (1<<5)
#define ZEND_PARSED_NEW (1<<6)
#define ZEND_PARSED_LIST_EXPR (1<<7)
#define ZEND_PARAM_REF (1<<0)
#define ZEND_PARAM_VARIADIC (1<<1)
#define ZEND_NAME_FQ 0
#define ZEND_NAME_NOT_FQ 1
#define ZEND_NAME_RELATIVE 2
/* unset types */
#define ZEND_UNSET_REG 0
/* var status for backpatching */
#define BP_VAR_R 0
#define BP_VAR_W 1
#define BP_VAR_RW 2
#define BP_VAR_IS 3
#define BP_VAR_FUNC_ARG 4
#define BP_VAR_UNSET 5
#define BP_VAR_REF 6 /* right-hand side of by-ref assignment */
/* Bottom 3 bits are the type, top bits are arg num for BP_VAR_FUNC_ARG */
#define BP_VAR_SHIFT 3
#define BP_VAR_MASK 7
#define ZEND_INTERNAL_FUNCTION 1
#define ZEND_USER_FUNCTION 2
#define ZEND_OVERLOADED_FUNCTION 3
#define ZEND_EVAL_CODE 4
#define ZEND_OVERLOADED_FUNCTION_TEMPORARY 5
/* A quick check (type == ZEND_USER_FUNCTION || type == ZEND_EVAL_CODE) */
#define ZEND_USER_CODE(type) ((type & 1) == 0)
#define ZEND_INTERNAL_CLASS 1
#define ZEND_USER_CLASS 2
#define ZEND_EVAL (1<<0)
#define ZEND_INCLUDE (1<<1)
#define ZEND_INCLUDE_ONCE (1<<2)
#define ZEND_REQUIRE (1<<3)
#define ZEND_REQUIRE_ONCE (1<<4)
#define ZEND_CT (1<<0)
#define ZEND_RT (1<<1)
/* global/local fetches */
#define ZEND_FETCH_GLOBAL 0x00000000
#define ZEND_FETCH_LOCAL 0x10000000
#define ZEND_FETCH_STATIC 0x20000000
#define ZEND_FETCH_STATIC_MEMBER 0x30000000
#define ZEND_FETCH_GLOBAL_LOCK 0x40000000
#define ZEND_FETCH_LEXICAL 0x50000000
#define ZEND_FETCH_TYPE_MASK 0x70000000
#define ZEND_FETCH_STANDARD 0x00000000
#define ZEND_ISSET 0x02000000
#define ZEND_ISEMPTY 0x01000000
#define ZEND_ISSET_ISEMPTY_MASK (ZEND_ISSET | ZEND_ISEMPTY)
#define ZEND_QUICK_SET 0x00800000
#define ZEND_FETCH_ARG_MASK 0x000fffff
#define ZEND_FE_FETCH_BYREF 1
#define ZEND_FE_FETCH_WITH_KEY 2
#define EXT_TYPE_FREE_ON_RETURN (1<<2)
#define ZEND_MEMBER_FUNC_CALL 1<<0
#define ZEND_ARG_SEND_BY_REF (1<<0)
#define ZEND_ARG_COMPILE_TIME_BOUND (1<<1)
#define ZEND_ARG_SEND_FUNCTION (1<<2)
#define ZEND_ARG_SEND_SILENT (1<<3)
#define ZEND_SEND_BY_VAL 0
#define ZEND_SEND_BY_REF 1
#define ZEND_SEND_PREFER_REF 2
static zend_always_inline int zend_check_arg_send_type(const zend_function *zf, uint32_t arg_num, uint32_t mask)
{
if (UNEXPECTED(zf->common.arg_info == NULL)) {
return 0;
}
if (UNEXPECTED(arg_num > zf->common.num_args)) {
if (EXPECTED((zf->common.fn_flags & ZEND_ACC_VARIADIC) == 0)) {
return 0;
}
arg_num = zf->common.num_args;
}
return UNEXPECTED((zf->common.arg_info[arg_num-1].pass_by_reference & mask) != 0);
}
#define ARG_MUST_BE_SENT_BY_REF(zf, arg_num) \
zend_check_arg_send_type(zf, arg_num, ZEND_SEND_BY_REF)
#define ARG_SHOULD_BE_SENT_BY_REF(zf, arg_num) \
zend_check_arg_send_type(zf, arg_num, ZEND_SEND_BY_REF|ZEND_SEND_PREFER_REF)
#define ARG_MAY_BE_SENT_BY_REF(zf, arg_num) \
zend_check_arg_send_type(zf, arg_num, ZEND_SEND_PREFER_REF)
#define ZEND_RETURN_VAL 0
#define ZEND_RETURN_REF 1
#define ZEND_RETURNS_FUNCTION 1<<0
#define ZEND_RETURNS_NEW 1<<1
#define ZEND_RETURNS_VALUE 1<<2
#define ZEND_FAST_RET_TO_CATCH 1
#define ZEND_FAST_RET_TO_FINALLY 2
#define ZEND_FAST_CALL_FROM_CATCH 1
#define ZEND_FAST_CALL_FROM_FINALLY 2
#define ZEND_ARRAY_ELEMENT_REF (1<<0)
#define ZEND_ARRAY_NOT_PACKED (1<<1)
#define ZEND_ARRAY_SIZE_SHIFT 2
END_EXTERN_C()
#define ZEND_CLONE_FUNC_NAME "__clone"
#define ZEND_CONSTRUCTOR_FUNC_NAME "__construct"
#define ZEND_DESTRUCTOR_FUNC_NAME "__destruct"
#define ZEND_GET_FUNC_NAME "__get"
#define ZEND_SET_FUNC_NAME "__set"
#define ZEND_UNSET_FUNC_NAME "__unset"
#define ZEND_ISSET_FUNC_NAME "__isset"
#define ZEND_CALL_FUNC_NAME "__call"
#define ZEND_CALLSTATIC_FUNC_NAME "__callstatic"
#define ZEND_TOSTRING_FUNC_NAME "__tostring"
#define ZEND_AUTOLOAD_FUNC_NAME "__autoload"
#define ZEND_INVOKE_FUNC_NAME "__invoke"
#define ZEND_DEBUGINFO_FUNC_NAME "__debuginfo"
/* The following constants may be combined in CG(compiler_options)
* to change the default compiler behavior */
/* generate extended debug information */
#define ZEND_COMPILE_EXTENDED_INFO (1<<0)
/* call op_array handler of extendions */
#define ZEND_COMPILE_HANDLE_OP_ARRAY (1<<1)
/* generate ZEND_INIT_FCALL_BY_NAME for internal functions instead of ZEND_INIT_FCALL */
#define ZEND_COMPILE_IGNORE_INTERNAL_FUNCTIONS (1<<2)
/* don't perform early binding for classes inherited form internal ones;
* in namespaces assume that internal class that doesn't exist at compile-time
* may apper in run-time */
#define ZEND_COMPILE_IGNORE_INTERNAL_CLASSES (1<<3)
/* generate ZEND_DECLARE_INHERITED_CLASS_DELAYED opcode to delay early binding */
#define ZEND_COMPILE_DELAYED_BINDING (1<<4)
/* disable constant substitution at compile-time */
#define ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION (1<<5)
/* disable usage of builtin instruction for strlen() */
#define ZEND_COMPILE_NO_BUILTIN_STRLEN (1<<6)
/* The default value for CG(compiler_options) */
#define ZEND_COMPILE_DEFAULT ZEND_COMPILE_HANDLE_OP_ARRAY
/* The default value for CG(compiler_options) during eval() */
#define ZEND_COMPILE_DEFAULT_FOR_EVAL 0
#endif /* ZEND_COMPILE_H */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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