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Zend
zend_types.h
/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) 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@php.net> | | Zeev Suraski <zeev@php.net> | | Dmitry Stogov <dmitry@php.net> | | Xinchen Hui <laruence@php.net> | +----------------------------------------------------------------------+ */ #ifndef ZEND_TYPES_H #define ZEND_TYPES_H #include "zend_portability.h" #include "zend_long.h" #include <stdbool.h> #include <stdint.h> #ifdef __SSE2__ # include <mmintrin.h> # include <emmintrin.h> #endif #if defined(__AVX2__) # include <immintrin.h> #endif #if defined(__aarch64__) || defined(_M_ARM64) # include <arm_neon.h> #endif #ifdef WORDS_BIGENDIAN # define ZEND_ENDIAN_LOHI(lo, hi) hi; lo; # define ZEND_ENDIAN_LOHI_3(lo, mi, hi) hi; mi; lo; # define ZEND_ENDIAN_LOHI_4(a, b, c, d) d; c; b; a; # define ZEND_ENDIAN_LOHI_C(lo, hi) hi, lo # define ZEND_ENDIAN_LOHI_C_3(lo, mi, hi) hi, mi, lo, # define ZEND_ENDIAN_LOHI_C_4(a, b, c, d) d, c, b, a #else # define ZEND_ENDIAN_LOHI(lo, hi) lo; hi; # define ZEND_ENDIAN_LOHI_3(lo, mi, hi) lo; mi; hi; # define ZEND_ENDIAN_LOHI_4(a, b, c, d) a; b; c; d; # define ZEND_ENDIAN_LOHI_C(lo, hi) lo, hi # define ZEND_ENDIAN_LOHI_C_3(lo, mi, hi) lo, mi, hi, # define ZEND_ENDIAN_LOHI_C_4(a, b, c, d) a, b, c, d #endif typedef unsigned char zend_uchar; typedef enum { SUCCESS = 0, FAILURE = -1, /* this MUST stay a negative number, or it may affect functions! */ } ZEND_RESULT_CODE; typedef ZEND_RESULT_CODE zend_result; #ifdef ZEND_ENABLE_ZVAL_LONG64 # ifdef ZEND_WIN32 # define ZEND_SIZE_MAX _UI64_MAX # else # define ZEND_SIZE_MAX SIZE_MAX # endif #else # if defined(ZEND_WIN32) # define ZEND_SIZE_MAX _UI32_MAX # else # define ZEND_SIZE_MAX SIZE_MAX # endif #endif #ifdef ZTS #define ZEND_TLS static TSRM_TLS #define ZEND_EXT_TLS TSRM_TLS #else #define ZEND_TLS static #define ZEND_EXT_TLS #endif typedef struct _zend_object_handlers zend_object_handlers; typedef struct _zend_class_entry zend_class_entry; typedef union _zend_function zend_function; typedef struct _zend_execute_data zend_execute_data; typedef struct _zval_struct zval; typedef struct _zend_refcounted zend_refcounted; typedef struct _zend_string zend_string; typedef struct _zend_array zend_array; typedef struct _zend_object zend_object; typedef struct _zend_resource zend_resource; typedef struct _zend_reference zend_reference; typedef struct _zend_ast_ref zend_ast_ref; typedef struct _zend_ast zend_ast; typedef int (*compare_func_t)(const void *, const void *); typedef void (*swap_func_t)(void *, void *); typedef void (*sort_func_t)(void *, size_t, size_t, compare_func_t, swap_func_t); typedef void (*dtor_func_t)(zval *pDest); typedef void (*copy_ctor_func_t)(zval *pElement); /* * zend_type - is an abstraction layer to represent information about type hint. * It shouldn't be used directly. Only through ZEND_TYPE_* macros. * * ZEND_TYPE_IS_SET() - checks if there is a type-hint * ZEND_TYPE_IS_ONLY_MASK() - checks if type-hint refer to standard type only * ZEND_TYPE_IS_COMPLEX() - checks if type is a type_list, or contains a class either as a CE or as a name * ZEND_TYPE_HAS_NAME() - checks if type-hint contains some class as zend_string * * ZEND_TYPE_HAS_LITERAL_NAME() - checks if type-hint contains some class as const char * * ZEND_TYPE_IS_INTERSECTION() - checks if the type_list represents an intersection type list * ZEND_TYPE_IS_UNION() - checks if the type_list represents a union type list * * ZEND_TYPE_NAME() - returns referenced class name * ZEND_TYPE_PURE_MASK() - returns MAY_BE_* type mask * ZEND_TYPE_FULL_MASK() - returns MAY_BE_* type mask together with other flags * * ZEND_TYPE_ALLOW_NULL() - checks if NULL is allowed * * ZEND_TYPE_INIT_*() should be used for construction. */ typedef struct { /* Not using a union here, because there's no good way to initialize them * in a way that is supported in both C and C++ (designated initializers * are only supported since C++20). */ void *ptr; uint32_t type_mask; /* TODO: We could use the extra 32-bit of padding on 64-bit systems. */ } zend_type; typedef struct { uint32_t num_types; zend_type types[1]; } zend_type_list; #define _ZEND_TYPE_EXTRA_FLAGS_SHIFT 25 #define _ZEND_TYPE_MASK ((1u << 25) - 1) /* Only one of these bits may be set. */ #define _ZEND_TYPE_NAME_BIT (1u << 24) // Used to signify that type.ptr is not a `zend_string*` but a `const char*`, #define _ZEND_TYPE_LITERAL_NAME_BIT (1u << 23) #define _ZEND_TYPE_LIST_BIT (1u << 22) #define _ZEND_TYPE_KIND_MASK (_ZEND_TYPE_LIST_BIT|_ZEND_TYPE_NAME_BIT|_ZEND_TYPE_LITERAL_NAME_BIT) /* For BC behaviour with iterable type */ #define _ZEND_TYPE_ITERABLE_BIT (1u << 21) /* Whether the type list is arena allocated */ #define _ZEND_TYPE_ARENA_BIT (1u << 20) /* Whether the type list is an intersection type */ #define _ZEND_TYPE_INTERSECTION_BIT (1u << 19) /* Whether the type is a union type */ #define _ZEND_TYPE_UNION_BIT (1u << 18) /* Type mask excluding the flags above. */ #define _ZEND_TYPE_MAY_BE_MASK ((1u << 18) - 1) /* Must have same value as MAY_BE_NULL */ #define _ZEND_TYPE_NULLABLE_BIT 0x2u #define ZEND_TYPE_IS_SET(t) \ (((t).type_mask & _ZEND_TYPE_MASK) != 0) /* If a type is complex it means it's either a list with a union or intersection, * or the void pointer is a class name */ #define ZEND_TYPE_IS_COMPLEX(t) \ ((((t).type_mask) & _ZEND_TYPE_KIND_MASK) != 0) #define ZEND_TYPE_HAS_NAME(t) \ ((((t).type_mask) & _ZEND_TYPE_NAME_BIT) != 0) #define ZEND_TYPE_HAS_LITERAL_NAME(t) \ ((((t).type_mask) & _ZEND_TYPE_LITERAL_NAME_BIT) != 0) #define ZEND_TYPE_HAS_LIST(t) \ ((((t).type_mask) & _ZEND_TYPE_LIST_BIT) != 0) #define ZEND_TYPE_IS_ITERABLE_FALLBACK(t) \ ((((t).type_mask) & _ZEND_TYPE_ITERABLE_BIT) != 0) #define ZEND_TYPE_IS_INTERSECTION(t) \ ((((t).type_mask) & _ZEND_TYPE_INTERSECTION_BIT) != 0) #define ZEND_TYPE_IS_UNION(t) \ ((((t).type_mask) & _ZEND_TYPE_UNION_BIT) != 0) #define ZEND_TYPE_USES_ARENA(t) \ ((((t).type_mask) & _ZEND_TYPE_ARENA_BIT) != 0) #define ZEND_TYPE_IS_ONLY_MASK(t) \ (ZEND_TYPE_IS_SET(t) && (t).ptr == NULL) #define ZEND_TYPE_NAME(t) \ ((zend_string *) (t).ptr) #define ZEND_TYPE_LITERAL_NAME(t) \ ((const char *) (t).ptr) #define ZEND_TYPE_LIST(t) \ ((zend_type_list *) (t).ptr) #define ZEND_TYPE_LIST_SIZE(num_types) \ (sizeof(zend_type_list) + ((num_types) - 1) * sizeof(zend_type)) /* This iterates over a zend_type_list. */ #define ZEND_TYPE_LIST_FOREACH(list, type_ptr) do { \ zend_type *_list = (list)->types; \ zend_type *_end = _list + (list)->num_types; \ for (; _list < _end; _list++) { \ type_ptr = _list; #define ZEND_TYPE_LIST_FOREACH_END() \ } \ } while (0) /* This iterates over any zend_type. If it's a type list, all list elements will * be visited. If it's a single type, only the single type is visited. */ #define ZEND_TYPE_FOREACH(type, type_ptr) do { \ zend_type *_cur, *_end; \ if (ZEND_TYPE_HAS_LIST(type)) { \ zend_type_list *_list = ZEND_TYPE_LIST(type); \ _cur = _list->types; \ _end = _cur + _list->num_types; \ } else { \ _cur = &(type); \ _end = _cur + 1; \ } \ do { \ type_ptr = _cur; #define ZEND_TYPE_FOREACH_END() \ } while (++_cur < _end); \ } while (0) #define ZEND_TYPE_SET_PTR(t, _ptr) \ ((t).ptr = (_ptr)) #define ZEND_TYPE_SET_PTR_AND_KIND(t, _ptr, kind_bit) do { \ (t).ptr = (_ptr); \ (t).type_mask &= ~_ZEND_TYPE_KIND_MASK; \ (t).type_mask |= (kind_bit); \ } while (0) #define ZEND_TYPE_SET_LIST(t, list) \ ZEND_TYPE_SET_PTR_AND_KIND(t, list, _ZEND_TYPE_LIST_BIT) /* FULL_MASK() includes the MAY_BE_* type mask, as well as additional metadata bits. * The PURE_MASK() only includes the MAY_BE_* type mask. */ #define ZEND_TYPE_FULL_MASK(t) \ ((t).type_mask) #define ZEND_TYPE_PURE_MASK(t) \ ((t).type_mask & _ZEND_TYPE_MAY_BE_MASK) #define ZEND_TYPE_FULL_MASK_WITHOUT_NULL(t) \ ((t).type_mask & ~_ZEND_TYPE_NULLABLE_BIT) #define ZEND_TYPE_PURE_MASK_WITHOUT_NULL(t) \ ((t).type_mask & _ZEND_TYPE_MAY_BE_MASK & ~_ZEND_TYPE_NULLABLE_BIT) #define ZEND_TYPE_CONTAINS_CODE(t, code) \ (((t).type_mask & (1u << (code))) != 0) #define ZEND_TYPE_ALLOW_NULL(t) \ (((t).type_mask & _ZEND_TYPE_NULLABLE_BIT) != 0) #if defined(__cplusplus) && defined(_MSC_VER) # define _ZEND_TYPE_PREFIX zend_type #else /* FIXME: We could add (zend_type) here at some point but this breaks in MSVC because * (zend_type)(zend_type){} is no longer considered constant. */ # define _ZEND_TYPE_PREFIX #endif #define ZEND_TYPE_INIT_NONE(extra_flags) \ _ZEND_TYPE_PREFIX { NULL, (extra_flags) } #define ZEND_TYPE_INIT_MASK(_type_mask) \ _ZEND_TYPE_PREFIX { NULL, (_type_mask) } #define ZEND_TYPE_INIT_CODE(code, allow_null, extra_flags) \ ZEND_TYPE_INIT_MASK(((code) == _IS_BOOL ? MAY_BE_BOOL : ( (code) == IS_ITERABLE ? _ZEND_TYPE_ITERABLE_BIT : ((code) == IS_MIXED ? MAY_BE_ANY : (1 << (code))))) \ | ((allow_null) ? _ZEND_TYPE_NULLABLE_BIT : 0) | (extra_flags)) #define ZEND_TYPE_INIT_PTR(ptr, type_kind, allow_null, extra_flags) \ _ZEND_TYPE_PREFIX { (void *) (ptr), \ (type_kind) | ((allow_null) ? _ZEND_TYPE_NULLABLE_BIT : 0) | (extra_flags) } #define ZEND_TYPE_INIT_PTR_MASK(ptr, type_mask) \ _ZEND_TYPE_PREFIX { (void *) (ptr), (type_mask) } #define ZEND_TYPE_INIT_UNION(ptr, extra_flags) \ _ZEND_TYPE_PREFIX { (void *) (ptr), (_ZEND_TYPE_LIST_BIT|_ZEND_TYPE_UNION_BIT) | (extra_flags) } #define ZEND_TYPE_INIT_INTERSECTION(ptr, extra_flags) \ _ZEND_TYPE_PREFIX { (void *) (ptr), (_ZEND_TYPE_LIST_BIT|_ZEND_TYPE_INTERSECTION_BIT) | (extra_flags) } #define ZEND_TYPE_INIT_CLASS(class_name, allow_null, extra_flags) \ ZEND_TYPE_INIT_PTR(class_name, _ZEND_TYPE_NAME_BIT, allow_null, extra_flags) #define ZEND_TYPE_INIT_CLASS_MASK(class_name, type_mask) \ ZEND_TYPE_INIT_PTR_MASK(class_name, _ZEND_TYPE_NAME_BIT | (type_mask)) #define ZEND_TYPE_INIT_CLASS_CONST(class_name, allow_null, extra_flags) \ ZEND_TYPE_INIT_PTR(class_name, _ZEND_TYPE_LITERAL_NAME_BIT, allow_null, extra_flags) #define ZEND_TYPE_INIT_CLASS_CONST_MASK(class_name, type_mask) \ ZEND_TYPE_INIT_PTR_MASK(class_name, (_ZEND_TYPE_LITERAL_NAME_BIT | (type_mask))) typedef union _zend_value { zend_long lval; /* long value */ double dval; /* double value */ zend_refcounted *counted; zend_string *str; zend_array *arr; zend_object *obj; zend_resource *res; zend_reference *ref; zend_ast_ref *ast; zval *zv; void *ptr; zend_class_entry *ce; zend_function *func; struct { uint32_t w1; uint32_t w2; } ww; } zend_value; struct _zval_struct { zend_value value; /* value */ union { uint32_t type_info; struct { ZEND_ENDIAN_LOHI_3( uint8_t type, /* active type */ uint8_t type_flags, union { uint16_t extra; /* not further specified */ } u) } v; } u1; union { uint32_t next; /* hash collision chain */ uint32_t cache_slot; /* cache slot (for RECV_INIT) */ uint32_t opline_num; /* opline number (for FAST_CALL) */ uint32_t lineno; /* line number (for ast nodes) */ uint32_t num_args; /* arguments number for EX(This) */ uint32_t fe_pos; /* foreach position */ uint32_t fe_iter_idx; /* foreach iterator index */ uint32_t guard; /* recursion and single property guard */ uint32_t constant_flags; /* constant flags */ uint32_t extra; /* not further specified */ } u2; }; typedef struct _zend_refcounted_h { uint32_t refcount; /* reference counter 32-bit */ union { uint32_t type_info; } u; } zend_refcounted_h; struct _zend_refcounted { zend_refcounted_h gc; }; struct _zend_string { zend_refcounted_h gc; zend_ulong h; /* hash value */ size_t len; char val[1]; }; typedef struct _Bucket { zval val; zend_ulong h; /* hash value (or numeric index) */ zend_string *key; /* string key or NULL for numerics */ } Bucket; typedef struct _zend_array HashTable; struct _zend_array { zend_refcounted_h gc; union { struct { ZEND_ENDIAN_LOHI_4( uint8_t flags, uint8_t _unused, uint8_t nIteratorsCount, uint8_t _unused2) } v; uint32_t flags; } u; uint32_t nTableMask; union { uint32_t *arHash; /* hash table (allocated above this pointer) */ Bucket *arData; /* array of hash buckets */ zval *arPacked; /* packed array of zvals */ }; uint32_t nNumUsed; uint32_t nNumOfElements; uint32_t nTableSize; uint32_t nInternalPointer; zend_long nNextFreeElement; dtor_func_t pDestructor; }; /* * HashTable Data Layout * ===================== * * +=============================+ * | HT_HASH(ht, ht->nTableMask) | +=============================+ * | ... | | HT_INVALID_IDX | * | HT_HASH(ht, -1) | | HT_INVALID_IDX | * +-----------------------------+ +-----------------------------+ * ht->arData ---> | Bucket[0] | ht->arPacked ---> | ZVAL[0] | * | ... | | ... | * | Bucket[ht->nTableSize-1] | | ZVAL[ht->nTableSize-1] | * +=============================+ +=============================+ */ #define HT_INVALID_IDX ((uint32_t) -1) #define HT_MIN_MASK ((uint32_t) -2) #define HT_MIN_SIZE 8 /* HT_MAX_SIZE is chosen to satisfy the following constraints: * - HT_SIZE_TO_MASK(HT_MAX_SIZE) != 0 * - HT_SIZE_EX(HT_MAX_SIZE, HT_SIZE_TO_MASK(HT_MAX_SIZE)) does not overflow or * wrapparound, and is <= the addressable space size * - HT_MAX_SIZE must be a power of two: * (nTableSize<HT_MAX_SIZE ? nTableSize+nTableSize : nTableSize) <= HT_MAX_SIZE */ #if SIZEOF_SIZE_T == 4 # define HT_MAX_SIZE 0x02000000 # define HT_HASH_TO_BUCKET_EX(data, idx) \ ((Bucket*)((char*)(data) + (idx))) # define HT_IDX_TO_HASH(idx) \ ((idx) * sizeof(Bucket)) # define HT_HASH_TO_IDX(idx) \ ((idx) / sizeof(Bucket)) #elif SIZEOF_SIZE_T == 8 # define HT_MAX_SIZE 0x40000000 # define HT_HASH_TO_BUCKET_EX(data, idx) \ ((data) + (idx)) # define HT_IDX_TO_HASH(idx) \ (idx) # define HT_HASH_TO_IDX(idx) \ (idx) #else # error "Unknown SIZEOF_SIZE_T" #endif #define HT_HASH_EX(data, idx) \ ((uint32_t*)(data))[(int32_t)(idx)] #define HT_HASH(ht, idx) \ HT_HASH_EX((ht)->arHash, idx) #define HT_SIZE_TO_MASK(nTableSize) \ ((uint32_t)(-((nTableSize) + (nTableSize)))) #define HT_HASH_SIZE(nTableMask) \ (((size_t)-(uint32_t)(nTableMask)) * sizeof(uint32_t)) #define HT_DATA_SIZE(nTableSize) \ ((size_t)(nTableSize) * sizeof(Bucket)) #define HT_SIZE_EX(nTableSize, nTableMask) \ (HT_DATA_SIZE((nTableSize)) + HT_HASH_SIZE((nTableMask))) #define HT_SIZE(ht) \ HT_SIZE_EX((ht)->nTableSize, (ht)->nTableMask) #define HT_USED_SIZE(ht) \ (HT_HASH_SIZE((ht)->nTableMask) + ((size_t)(ht)->nNumUsed * sizeof(Bucket))) #define HT_PACKED_DATA_SIZE(nTableSize) \ ((size_t)(nTableSize) * sizeof(zval)) #define HT_PACKED_SIZE_EX(nTableSize, nTableMask) \ (HT_PACKED_DATA_SIZE((nTableSize)) + HT_HASH_SIZE((nTableMask))) #define HT_PACKED_SIZE(ht) \ HT_PACKED_SIZE_EX((ht)->nTableSize, (ht)->nTableMask) #define HT_PACKED_USED_SIZE(ht) \ (HT_HASH_SIZE((ht)->nTableMask) + ((size_t)(ht)->nNumUsed * sizeof(zval))) #if defined(__AVX2__) # define HT_HASH_RESET(ht) do { \ char *p = (char*)&HT_HASH(ht, (ht)->nTableMask); \ size_t size = HT_HASH_SIZE((ht)->nTableMask); \ __m256i ymm0 = _mm256_setzero_si256(); \ ymm0 = _mm256_cmpeq_epi64(ymm0, ymm0); \ ZEND_ASSERT(size >= 64 && ((size & 0x3f) == 0)); \ do { \ _mm256_storeu_si256((__m256i*)p, ymm0); \ _mm256_storeu_si256((__m256i*)(p+32), ymm0); \ p += 64; \ size -= 64; \ } while (size != 0); \ } while (0) #elif defined(__SSE2__) # define HT_HASH_RESET(ht) do { \ char *p = (char*)&HT_HASH(ht, (ht)->nTableMask); \ size_t size = HT_HASH_SIZE((ht)->nTableMask); \ __m128i xmm0 = _mm_setzero_si128(); \ xmm0 = _mm_cmpeq_epi8(xmm0, xmm0); \ ZEND_ASSERT(size >= 64 && ((size & 0x3f) == 0)); \ do { \ _mm_storeu_si128((__m128i*)p, xmm0); \ _mm_storeu_si128((__m128i*)(p+16), xmm0); \ _mm_storeu_si128((__m128i*)(p+32), xmm0); \ _mm_storeu_si128((__m128i*)(p+48), xmm0); \ p += 64; \ size -= 64; \ } while (size != 0); \ } while (0) #elif defined(__aarch64__) || defined(_M_ARM64) # define HT_HASH_RESET(ht) do { \ char *p = (char*)&HT_HASH(ht, (ht)->nTableMask); \ size_t size = HT_HASH_SIZE((ht)->nTableMask); \ int32x4_t t = vdupq_n_s32(-1); \ ZEND_ASSERT(size >= 64 && ((size & 0x3f) == 0)); \ do { \ vst1q_s32((int32_t*)p, t); \ vst1q_s32((int32_t*)(p+16), t); \ vst1q_s32((int32_t*)(p+32), t); \ vst1q_s32((int32_t*)(p+48), t); \ p += 64; \ size -= 64; \ } while (size != 0); \ } while (0) #else # define HT_HASH_RESET(ht) \ memset(&HT_HASH(ht, (ht)->nTableMask), HT_INVALID_IDX, HT_HASH_SIZE((ht)->nTableMask)) #endif #define HT_HASH_RESET_PACKED(ht) do { \ HT_HASH(ht, -2) = HT_INVALID_IDX; \ HT_HASH(ht, -1) = HT_INVALID_IDX; \ } while (0) #define HT_HASH_TO_BUCKET(ht, idx) \ HT_HASH_TO_BUCKET_EX((ht)->arData, idx) #define HT_SET_DATA_ADDR(ht, ptr) do { \ (ht)->arData = (Bucket*)(((char*)(ptr)) + HT_HASH_SIZE((ht)->nTableMask)); \ } while (0) #define HT_GET_DATA_ADDR(ht) \ ((char*)((ht)->arData) - HT_HASH_SIZE((ht)->nTableMask)) typedef uint32_t HashPosition; typedef struct _HashTableIterator { HashTable *ht; HashPosition pos; uint32_t next_copy; // circular linked list via index into EG(ht_iterators) } HashTableIterator; struct _zend_object { zend_refcounted_h gc; uint32_t handle; // TODO: may be removed ??? zend_class_entry *ce; const zend_object_handlers *handlers; HashTable *properties; zval properties_table[1]; }; struct _zend_resource { zend_refcounted_h gc; zend_long handle; // TODO: may be removed ??? int type; void *ptr; }; typedef struct { size_t num; size_t num_allocated; struct _zend_property_info *ptr[1]; } zend_property_info_list; typedef union { struct _zend_property_info *ptr; uintptr_t list; } zend_property_info_source_list; #define ZEND_PROPERTY_INFO_SOURCE_FROM_LIST(list) (0x1 | (uintptr_t) (list)) #define ZEND_PROPERTY_INFO_SOURCE_TO_LIST(list) ((zend_property_info_list *) ((list) & ~0x1)) #define ZEND_PROPERTY_INFO_SOURCE_IS_LIST(list) ((list) & 0x1) struct _zend_reference { zend_refcounted_h gc; zval val; zend_property_info_source_list sources; }; struct _zend_ast_ref { zend_refcounted_h gc; /*zend_ast ast; zend_ast follows the zend_ast_ref structure */ }; /* Regular data types: Must be in sync with zend_variables.c. */ #define IS_UNDEF 0 #define IS_NULL 1 #define IS_FALSE 2 #define IS_TRUE 3 #define IS_LONG 4 #define IS_DOUBLE 5 #define IS_STRING 6 #define IS_ARRAY 7 #define IS_OBJECT 8 #define IS_RESOURCE 9 #define IS_REFERENCE 10 #define IS_CONSTANT_AST 11 /* Constant expressions */ /* Fake types used only for type hinting. * These are allowed to overlap with the types below. */ #define IS_CALLABLE 12 #define IS_ITERABLE 13 #define IS_VOID 14 #define IS_STATIC 15 #define IS_MIXED 16 #define IS_NEVER 17 /* internal types */ #define IS_INDIRECT 12 #define IS_PTR 13 #define IS_ALIAS_PTR 14 #define _IS_ERROR 15 /* used for casts */ #define _IS_BOOL 18 #define _IS_NUMBER 19 /* guard flags */ #define ZEND_GUARD_PROPERTY_GET (1<<0) #define ZEND_GUARD_PROPERTY_SET (1<<1) #define ZEND_GUARD_PROPERTY_UNSET (1<<2) #define ZEND_GUARD_PROPERTY_ISSET (1<<3) #define ZEND_GUARD_PROPERTY_MASK 15 #define ZEND_GUARD_RECURSION_DEBUG (1<<4) #define ZEND_GUARD_RECURSION_EXPORT (1<<5) #define ZEND_GUARD_RECURSION_JSON (1<<6) #define ZEND_GUARD_RECURSION_TYPE(t) ZEND_GUARD_RECURSION_ ## t #define ZEND_GUARD_IS_RECURSIVE(pg, t) ((*pg & ZEND_GUARD_RECURSION_TYPE(t)) != 0) #define ZEND_GUARD_PROTECT_RECURSION(pg, t) *pg |= ZEND_GUARD_RECURSION_TYPE(t) #define ZEND_GUARD_UNPROTECT_RECURSION(pg, t) *pg &= ~ZEND_GUARD_RECURSION_TYPE(t) static zend_always_inline uint8_t zval_get_type(const zval* pz) { return pz->u1.v.type; } #define ZEND_SAME_FAKE_TYPE(faketype, realtype) ( \ (faketype) == (realtype) \ || ((faketype) == _IS_BOOL && ((realtype) == IS_TRUE || (realtype) == IS_FALSE)) \ ) /* we should never set just Z_TYPE, we should set Z_TYPE_INFO */ #define Z_TYPE(zval) zval_get_type(&(zval)) #define Z_TYPE_P(zval_p) Z_TYPE(*(zval_p)) #define Z_TYPE_FLAGS(zval) (zval).u1.v.type_flags #define Z_TYPE_FLAGS_P(zval_p) Z_TYPE_FLAGS(*(zval_p)) #define Z_TYPE_EXTRA(zval) (zval).u1.v.u.extra #define Z_TYPE_EXTRA_P(zval_p) Z_TYPE_EXTRA(*(zval_p)) #define Z_TYPE_INFO(zval) (zval).u1.type_info #define Z_TYPE_INFO_P(zval_p) Z_TYPE_INFO(*(zval_p)) #define Z_NEXT(zval) (zval).u2.next #define Z_NEXT_P(zval_p) Z_NEXT(*(zval_p)) #define Z_CACHE_SLOT(zval) (zval).u2.cache_slot #define Z_CACHE_SLOT_P(zval_p) Z_CACHE_SLOT(*(zval_p)) #define Z_LINENO(zval) (zval).u2.lineno #define Z_LINENO_P(zval_p) Z_LINENO(*(zval_p)) #define Z_OPLINE_NUM(zval) (zval).u2.opline_num #define Z_OPLINE_NUM_P(zval_p) Z_OPLINE_NUM(*(zval_p)) #define Z_FE_POS(zval) (zval).u2.fe_pos #define Z_FE_POS_P(zval_p) Z_FE_POS(*(zval_p)) #define Z_FE_ITER(zval) (zval).u2.fe_iter_idx #define Z_FE_ITER_P(zval_p) Z_FE_ITER(*(zval_p)) #define Z_GUARD(zval) (zval).u2.guard #define Z_GUARD_P(zval_p) Z_GUARD(*(zval_p)) #define Z_CONSTANT_FLAGS(zval) (zval).u2.constant_flags #define Z_CONSTANT_FLAGS_P(zval_p) Z_CONSTANT_FLAGS(*(zval_p)) #define Z_EXTRA(zval) (zval).u2.extra #define Z_EXTRA_P(zval_p) Z_EXTRA(*(zval_p)) #define Z_COUNTED(zval) (zval).value.counted #define Z_COUNTED_P(zval_p) Z_COUNTED(*(zval_p)) #define Z_TYPE_MASK 0xff #define Z_TYPE_FLAGS_MASK 0xff00 #define Z_TYPE_FLAGS_SHIFT 8 #define Z_TYPE_INFO_EXTRA_SHIFT 16 #define GC_REFCOUNT(p) zend_gc_refcount(&(p)->gc) #define GC_SET_REFCOUNT(p, rc) zend_gc_set_refcount(&(p)->gc, rc) #define GC_ADDREF(p) zend_gc_addref(&(p)->gc) #define GC_DELREF(p) zend_gc_delref(&(p)->gc) #define GC_ADDREF_EX(p, rc) zend_gc_addref_ex(&(p)->gc, rc) #define GC_DELREF_EX(p, rc) zend_gc_delref_ex(&(p)->gc, rc) #define GC_TRY_ADDREF(p) zend_gc_try_addref(&(p)->gc) #define GC_TRY_DELREF(p) zend_gc_try_delref(&(p)->gc) #define GC_DTOR(p) \ do { \ zend_refcounted_h *_p = &(p)->gc; \ if (zend_gc_delref(_p) == 0) { \ rc_dtor_func((zend_refcounted *)_p); \ } else { \ gc_check_possible_root((zend_refcounted *)_p); \ } \ } while (0) #define GC_DTOR_NO_REF(p) \ do { \ zend_refcounted_h *_p = &(p)->gc; \ if (zend_gc_delref(_p) == 0) { \ rc_dtor_func((zend_refcounted *)_p); \ } else { \ gc_check_possible_root_no_ref((zend_refcounted *)_p); \ } \ } while (0) #define GC_TRY_DTOR_NO_REF(p) \ do { \ zend_refcounted_h *_p = &(p)->gc; \ if (!(_p->u.type_info & GC_IMMUTABLE)) { \ if (zend_gc_delref(_p) == 0) { \ rc_dtor_func((zend_refcounted *)_p); \ } else { \ gc_check_possible_root_no_ref((zend_refcounted *)_p); \ } \ } \ } while (0) #define GC_TYPE_MASK 0x0000000f #define GC_FLAGS_MASK 0x000003f0 #define GC_INFO_MASK 0xfffffc00 #define GC_FLAGS_SHIFT 0 #define GC_INFO_SHIFT 10 static zend_always_inline uint8_t zval_gc_type(uint32_t gc_type_info) { return (gc_type_info & GC_TYPE_MASK); } static zend_always_inline uint32_t zval_gc_flags(uint32_t gc_type_info) { return (gc_type_info >> GC_FLAGS_SHIFT) & (GC_FLAGS_MASK >> GC_FLAGS_SHIFT); } static zend_always_inline uint32_t zval_gc_info(uint32_t gc_type_info) { return (gc_type_info >> GC_INFO_SHIFT); } #define GC_TYPE_INFO(p) (p)->gc.u.type_info #define GC_TYPE(p) zval_gc_type(GC_TYPE_INFO(p)) #define GC_FLAGS(p) zval_gc_flags(GC_TYPE_INFO(p)) #define GC_INFO(p) zval_gc_info(GC_TYPE_INFO(p)) #define GC_ADD_FLAGS(p, flags) do { \ GC_TYPE_INFO(p) |= (flags) << GC_FLAGS_SHIFT; \ } while (0) #define GC_DEL_FLAGS(p, flags) do { \ GC_TYPE_INFO(p) &= ~((flags) << GC_FLAGS_SHIFT); \ } while (0) #define Z_GC_TYPE(zval) GC_TYPE(Z_COUNTED(zval)) #define Z_GC_TYPE_P(zval_p) Z_GC_TYPE(*(zval_p)) #define Z_GC_FLAGS(zval) GC_FLAGS(Z_COUNTED(zval)) #define Z_GC_FLAGS_P(zval_p) Z_GC_FLAGS(*(zval_p)) #define Z_GC_INFO(zval) GC_INFO(Z_COUNTED(zval)) #define Z_GC_INFO_P(zval_p) Z_GC_INFO(*(zval_p)) #define Z_GC_TYPE_INFO(zval) GC_TYPE_INFO(Z_COUNTED(zval)) #define Z_GC_TYPE_INFO_P(zval_p) Z_GC_TYPE_INFO(*(zval_p)) /* zval_gc_flags(zval.value->gc.u.type_info) (common flags) */ #define GC_NOT_COLLECTABLE (1<<4) #define GC_PROTECTED (1<<5) /* used for recursion detection */ #define GC_IMMUTABLE (1<<6) /* can't be changed in place */ #define GC_PERSISTENT (1<<7) /* allocated using malloc */ #define GC_PERSISTENT_LOCAL (1<<8) /* persistent, but thread-local */ #define GC_NULL (IS_NULL | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT)) #define GC_STRING (IS_STRING | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT)) #define GC_ARRAY IS_ARRAY #define GC_OBJECT IS_OBJECT #define GC_RESOURCE (IS_RESOURCE | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT)) #define GC_REFERENCE (IS_REFERENCE | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT)) #define GC_CONSTANT_AST (IS_CONSTANT_AST | (GC_NOT_COLLECTABLE << GC_FLAGS_SHIFT)) /* zval.u1.v.type_flags */ #define IS_TYPE_REFCOUNTED (1<<0) #define IS_TYPE_COLLECTABLE (1<<1) /* Used for static variables to check if they have been initialized. We can't use IS_UNDEF because * we can't store IS_UNDEF zvals in the static_variables HashTable. This needs to live in type_info * so that the ZEND_ASSIGN overrides it but is moved to extra to avoid breaking the Z_REFCOUNTED() * optimization that only checks for Z_TYPE_FLAGS() without `& (IS_TYPE_COLLECTABLE|IS_TYPE_REFCOUNTED)`. */ #define IS_STATIC_VAR_UNINITIALIZED (1<<0) #if 1 /* This optimized version assumes that we have a single "type_flag" */ /* IS_TYPE_COLLECTABLE may be used only with IS_TYPE_REFCOUNTED */ # define Z_TYPE_INFO_REFCOUNTED(t) (((t) & Z_TYPE_FLAGS_MASK) != 0) #else # define Z_TYPE_INFO_REFCOUNTED(t) (((t) & (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT)) != 0) #endif /* extended types */ #define IS_INTERNED_STRING_EX IS_STRING #define IS_STRING_EX (IS_STRING | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT)) #define IS_ARRAY_EX (IS_ARRAY | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT) | (IS_TYPE_COLLECTABLE << Z_TYPE_FLAGS_SHIFT)) #define IS_OBJECT_EX (IS_OBJECT | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT) | (IS_TYPE_COLLECTABLE << Z_TYPE_FLAGS_SHIFT)) #define IS_RESOURCE_EX (IS_RESOURCE | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT)) #define IS_REFERENCE_EX (IS_REFERENCE | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT)) #define IS_CONSTANT_AST_EX (IS_CONSTANT_AST | (IS_TYPE_REFCOUNTED << Z_TYPE_FLAGS_SHIFT)) /* string flags (zval.value->gc.u.flags) */ #define IS_STR_CLASS_NAME_MAP_PTR GC_PROTECTED /* refcount is a map_ptr offset of class_entry */ #define IS_STR_INTERNED GC_IMMUTABLE /* interned string */ #define IS_STR_PERSISTENT GC_PERSISTENT /* allocated using malloc */ #define IS_STR_PERMANENT (1<<8) /* relives request boundary */ #define IS_STR_VALID_UTF8 (1<<9) /* valid UTF-8 according to PCRE */ /* array flags */ #define IS_ARRAY_IMMUTABLE GC_IMMUTABLE #define IS_ARRAY_PERSISTENT GC_PERSISTENT /* object flags (zval.value->gc.u.flags) */ #define IS_OBJ_WEAKLY_REFERENCED GC_PERSISTENT #define IS_OBJ_DESTRUCTOR_CALLED (1<<8) #define IS_OBJ_FREE_CALLED (1<<9) #define OBJ_FLAGS(obj) GC_FLAGS(obj) /* Fast class cache */ #define ZSTR_HAS_CE_CACHE(s) (GC_FLAGS(s) & IS_STR_CLASS_NAME_MAP_PTR) #define ZSTR_GET_CE_CACHE(s) ZSTR_GET_CE_CACHE_EX(s, 1) #define ZSTR_SET_CE_CACHE(s, ce) ZSTR_SET_CE_CACHE_EX(s, ce, 1) #define ZSTR_VALID_CE_CACHE(s) EXPECTED((GC_REFCOUNT(s)-1)/sizeof(void *) < CG(map_ptr_last)) #define ZSTR_GET_CE_CACHE_EX(s, validate) \ ((!(validate) || ZSTR_VALID_CE_CACHE(s)) ? GET_CE_CACHE(GC_REFCOUNT(s)) : NULL) #define ZSTR_SET_CE_CACHE_EX(s, ce, validate) do { \ if (!(validate) || ZSTR_VALID_CE_CACHE(s)) { \ ZEND_ASSERT((validate) || ZSTR_VALID_CE_CACHE(s)); \ SET_CE_CACHE(GC_REFCOUNT(s), ce); \ } \ } while (0) #define GET_CE_CACHE(ce_cache) \ (*(zend_class_entry **)ZEND_MAP_PTR_OFFSET2PTR(ce_cache)) #define SET_CE_CACHE(ce_cache, ce) do { \ *((zend_class_entry **)ZEND_MAP_PTR_OFFSET2PTR(ce_cache)) = ce; \ } while (0) /* Recursion protection macros must be used only for arrays and objects */ #define GC_IS_RECURSIVE(p) \ (GC_FLAGS(p) & GC_PROTECTED) #define GC_PROTECT_RECURSION(p) do { \ GC_ADD_FLAGS(p, GC_PROTECTED); \ } while (0) #define GC_UNPROTECT_RECURSION(p) do { \ GC_DEL_FLAGS(p, GC_PROTECTED); \ } while (0) #define GC_TRY_PROTECT_RECURSION(p) do { \ if (!(GC_FLAGS(p) & GC_IMMUTABLE)) GC_PROTECT_RECURSION(p); \ } while (0) #define GC_TRY_UNPROTECT_RECURSION(p) do { \ if (!(GC_FLAGS(p) & GC_IMMUTABLE)) GC_UNPROTECT_RECURSION(p); \ } while (0) #define Z_IS_RECURSIVE(zval) GC_IS_RECURSIVE(Z_COUNTED(zval)) #define Z_PROTECT_RECURSION(zval) GC_PROTECT_RECURSION(Z_COUNTED(zval)) #define Z_UNPROTECT_RECURSION(zval) GC_UNPROTECT_RECURSION(Z_COUNTED(zval)) #define Z_IS_RECURSIVE_P(zv) Z_IS_RECURSIVE(*(zv)) #define Z_PROTECT_RECURSION_P(zv) Z_PROTECT_RECURSION(*(zv)) #define Z_UNPROTECT_RECURSION_P(zv) Z_UNPROTECT_RECURSION(*(zv)) #define ZEND_GUARD_OR_GC_IS_RECURSIVE(pg, t, zobj) \ (pg ? ZEND_GUARD_IS_RECURSIVE(pg, t) : GC_IS_RECURSIVE(zobj)) #define ZEND_GUARD_OR_GC_PROTECT_RECURSION(pg, t, zobj) do { \ if (pg) { \ ZEND_GUARD_PROTECT_RECURSION(pg, t); \ } else { \ GC_PROTECT_RECURSION(zobj); \ } \ } while(0) #define ZEND_GUARD_OR_GC_UNPROTECT_RECURSION(pg, t, zobj) do { \ if (pg) { \ ZEND_GUARD_UNPROTECT_RECURSION(pg, t); \ } else { \ GC_UNPROTECT_RECURSION(zobj); \ } \ } while(0) /* All data types < IS_STRING have their constructor/destructors skipped */ #define Z_CONSTANT(zval) (Z_TYPE(zval) == IS_CONSTANT_AST) #define Z_CONSTANT_P(zval_p) Z_CONSTANT(*(zval_p)) #if 1 /* This optimized version assumes that we have a single "type_flag" */ /* IS_TYPE_COLLECTABLE may be used only with IS_TYPE_REFCOUNTED */ #define Z_REFCOUNTED(zval) (Z_TYPE_FLAGS(zval) != 0) #else #define Z_REFCOUNTED(zval) ((Z_TYPE_FLAGS(zval) & IS_TYPE_REFCOUNTED) != 0) #endif #define Z_REFCOUNTED_P(zval_p) Z_REFCOUNTED(*(zval_p)) #define Z_COLLECTABLE(zval) ((Z_TYPE_FLAGS(zval) & IS_TYPE_COLLECTABLE) != 0) #define Z_COLLECTABLE_P(zval_p) Z_COLLECTABLE(*(zval_p)) /* deprecated: (COPYABLE is the same as IS_ARRAY) */ #define Z_COPYABLE(zval) (Z_TYPE(zval) == IS_ARRAY) #define Z_COPYABLE_P(zval_p) Z_COPYABLE(*(zval_p)) /* deprecated: (IMMUTABLE is the same as IS_ARRAY && !REFCOUNTED) */ #define Z_IMMUTABLE(zval) (Z_TYPE_INFO(zval) == IS_ARRAY) #define Z_IMMUTABLE_P(zval_p) Z_IMMUTABLE(*(zval_p)) #define Z_OPT_IMMUTABLE(zval) Z_IMMUTABLE(zval_p) #define Z_OPT_IMMUTABLE_P(zval_p) Z_IMMUTABLE(*(zval_p)) /* the following Z_OPT_* macros make better code when Z_TYPE_INFO accessed before */ #define Z_OPT_TYPE(zval) (Z_TYPE_INFO(zval) & Z_TYPE_MASK) #define Z_OPT_TYPE_P(zval_p) Z_OPT_TYPE(*(zval_p)) #define Z_OPT_CONSTANT(zval) (Z_OPT_TYPE(zval) == IS_CONSTANT_AST) #define Z_OPT_CONSTANT_P(zval_p) Z_OPT_CONSTANT(*(zval_p)) #define Z_OPT_REFCOUNTED(zval) Z_TYPE_INFO_REFCOUNTED(Z_TYPE_INFO(zval)) #define Z_OPT_REFCOUNTED_P(zval_p) Z_OPT_REFCOUNTED(*(zval_p)) /* deprecated: (COPYABLE is the same as IS_ARRAY) */ #define Z_OPT_COPYABLE(zval) (Z_OPT_TYPE(zval) == IS_ARRAY) #define Z_OPT_COPYABLE_P(zval_p) Z_OPT_COPYABLE(*(zval_p)) #define Z_OPT_ISREF(zval) (Z_OPT_TYPE(zval) == IS_REFERENCE) #define Z_OPT_ISREF_P(zval_p) Z_OPT_ISREF(*(zval_p)) #define Z_ISREF(zval) (Z_TYPE(zval) == IS_REFERENCE) #define Z_ISREF_P(zval_p) Z_ISREF(*(zval_p)) #define Z_ISUNDEF(zval) (Z_TYPE(zval) == IS_UNDEF) #define Z_ISUNDEF_P(zval_p) Z_ISUNDEF(*(zval_p)) #define Z_ISNULL(zval) (Z_TYPE(zval) == IS_NULL) #define Z_ISNULL_P(zval_p) Z_ISNULL(*(zval_p)) #define Z_ISERROR(zval) (Z_TYPE(zval) == _IS_ERROR) #define Z_ISERROR_P(zval_p) Z_ISERROR(*(zval_p)) #define Z_LVAL(zval) (zval).value.lval #define Z_LVAL_P(zval_p) Z_LVAL(*(zval_p)) #define Z_DVAL(zval) (zval).value.dval #define Z_DVAL_P(zval_p) Z_DVAL(*(zval_p)) #define Z_STR(zval) (zval).value.str #define Z_STR_P(zval_p) Z_STR(*(zval_p)) #define Z_STRVAL(zval) ZSTR_VAL(Z_STR(zval)) #define Z_STRVAL_P(zval_p) Z_STRVAL(*(zval_p)) #define Z_STRLEN(zval) ZSTR_LEN(Z_STR(zval)) #define Z_STRLEN_P(zval_p) Z_STRLEN(*(zval_p)) #define Z_STRHASH(zval) ZSTR_HASH(Z_STR(zval)) #define Z_STRHASH_P(zval_p) Z_STRHASH(*(zval_p)) #define Z_ARR(zval) (zval).value.arr #define Z_ARR_P(zval_p) Z_ARR(*(zval_p)) #define Z_ARRVAL(zval) Z_ARR(zval) #define Z_ARRVAL_P(zval_p) Z_ARRVAL(*(zval_p)) #define Z_OBJ(zval) (zval).value.obj #define Z_OBJ_P(zval_p) Z_OBJ(*(zval_p)) #define Z_OBJ_HT(zval) Z_OBJ(zval)->handlers #define Z_OBJ_HT_P(zval_p) Z_OBJ_HT(*(zval_p)) #define Z_OBJ_HANDLER(zval, hf) Z_OBJ_HT((zval))->hf #define Z_OBJ_HANDLER_P(zv_p, hf) Z_OBJ_HANDLER(*(zv_p), hf) #define Z_OBJ_HANDLE(zval) (Z_OBJ((zval)))->handle #define Z_OBJ_HANDLE_P(zval_p) Z_OBJ_HANDLE(*(zval_p)) #define Z_OBJCE(zval) (Z_OBJ(zval)->ce) #define Z_OBJCE_P(zval_p) Z_OBJCE(*(zval_p)) #define Z_OBJPROP(zval) Z_OBJ_HT((zval))->get_properties(Z_OBJ(zval)) #define Z_OBJPROP_P(zval_p) Z_OBJPROP(*(zval_p)) #define Z_RES(zval) (zval).value.res #define Z_RES_P(zval_p) Z_RES(*zval_p) #define Z_RES_HANDLE(zval) Z_RES(zval)->handle #define Z_RES_HANDLE_P(zval_p) Z_RES_HANDLE(*zval_p) #define Z_RES_TYPE(zval) Z_RES(zval)->type #define Z_RES_TYPE_P(zval_p) Z_RES_TYPE(*zval_p) #define Z_RES_VAL(zval) Z_RES(zval)->ptr #define Z_RES_VAL_P(zval_p) Z_RES_VAL(*zval_p) #define Z_REF(zval) (zval).value.ref #define Z_REF_P(zval_p) Z_REF(*(zval_p)) #define Z_REFVAL(zval) &Z_REF(zval)->val #define Z_REFVAL_P(zval_p) Z_REFVAL(*(zval_p)) #define Z_AST(zval) (zval).value.ast #define Z_AST_P(zval_p) Z_AST(*(zval_p)) #define GC_AST(p) ((zend_ast*)(((char*)p) + sizeof(zend_ast_ref))) #define Z_ASTVAL(zval) GC_AST(Z_AST(zval)) #define Z_ASTVAL_P(zval_p) Z_ASTVAL(*(zval_p)) #define Z_INDIRECT(zval) (zval).value.zv #define Z_INDIRECT_P(zval_p) Z_INDIRECT(*(zval_p)) #define Z_CE(zval) (zval).value.ce #define Z_CE_P(zval_p) Z_CE(*(zval_p)) #define Z_FUNC(zval) (zval).value.func #define Z_FUNC_P(zval_p) Z_FUNC(*(zval_p)) #define Z_PTR(zval) (zval).value.ptr #define Z_PTR_P(zval_p) Z_PTR(*(zval_p)) #define ZVAL_UNDEF(z) do { \ Z_TYPE_INFO_P(z) = IS_UNDEF; \ } while (0) #define ZVAL_NULL(z) do { \ Z_TYPE_INFO_P(z) = IS_NULL; \ } while (0) #define ZVAL_FALSE(z) do { \ Z_TYPE_INFO_P(z) = IS_FALSE; \ } while (0) #define ZVAL_TRUE(z) do { \ Z_TYPE_INFO_P(z) = IS_TRUE; \ } while (0) #define ZVAL_BOOL(z, b) do { \ Z_TYPE_INFO_P(z) = \ (b) ? IS_TRUE : IS_FALSE; \ } while (0) #define ZVAL_LONG(z, l) do { \ zval *__z = (z); \ Z_LVAL_P(__z) = l; \ Z_TYPE_INFO_P(__z) = IS_LONG; \ } while (0) #define ZVAL_DOUBLE(z, d) do { \ zval *__z = (z); \ Z_DVAL_P(__z) = d; \ Z_TYPE_INFO_P(__z) = IS_DOUBLE; \ } while (0) #define ZVAL_STR(z, s) do { \ zval *__z = (z); \ zend_string *__s = (s); \ Z_STR_P(__z) = __s; \ /* interned strings support */ \ Z_TYPE_INFO_P(__z) = ZSTR_IS_INTERNED(__s) ? \ IS_INTERNED_STRING_EX : \ IS_STRING_EX; \ } while (0) #define ZVAL_INTERNED_STR(z, s) do { \ zval *__z = (z); \ zend_string *__s = (s); \ Z_STR_P(__z) = __s; \ Z_TYPE_INFO_P(__z) = IS_INTERNED_STRING_EX; \ } while (0) #define ZVAL_NEW_STR(z, s) do { \ zval *__z = (z); \ zend_string *__s = (s); \ Z_STR_P(__z) = __s; \ Z_TYPE_INFO_P(__z) = IS_STRING_EX; \ } while (0) #define ZVAL_STR_COPY(z, s) do { \ zval *__z = (z); \ zend_string *__s = (s); \ Z_STR_P(__z) = __s; \ /* interned strings support */ \ if (ZSTR_IS_INTERNED(__s)) { \ Z_TYPE_INFO_P(__z) = IS_INTERNED_STRING_EX; \ } else { \ GC_ADDREF(__s); \ Z_TYPE_INFO_P(__z) = IS_STRING_EX; \ } \ } while (0) #define ZVAL_ARR(z, a) do { \ zend_array *__arr = (a); \ zval *__z = (z); \ Z_ARR_P(__z) = __arr; \ Z_TYPE_INFO_P(__z) = IS_ARRAY_EX; \ } while (0) #define ZVAL_NEW_PERSISTENT_ARR(z) do { \ zval *__z = (z); \ zend_array *_arr = \ (zend_array *) malloc(sizeof(zend_array)); \ Z_ARR_P(__z) = _arr; \ Z_TYPE_INFO_P(__z) = IS_ARRAY_EX; \ } while (0) #define ZVAL_OBJ(z, o) do { \ zval *__z = (z); \ Z_OBJ_P(__z) = (o); \ Z_TYPE_INFO_P(__z) = IS_OBJECT_EX; \ } while (0) #define ZVAL_OBJ_COPY(z, o) do { \ zval *__z = (z); \ zend_object *__o = (o); \ GC_ADDREF(__o); \ Z_OBJ_P(__z) = __o; \ Z_TYPE_INFO_P(__z) = IS_OBJECT_EX; \ } while (0) #define ZVAL_RES(z, r) do { \ zval *__z = (z); \ Z_RES_P(__z) = (r); \ Z_TYPE_INFO_P(__z) = IS_RESOURCE_EX; \ } while (0) #define ZVAL_NEW_RES(z, h, p, t) do { \ zend_resource *_res = \ (zend_resource *) emalloc(sizeof(zend_resource)); \ zval *__z; \ GC_SET_REFCOUNT(_res, 1); \ GC_TYPE_INFO(_res) = GC_RESOURCE; \ _res->handle = (h); \ _res->type = (t); \ _res->ptr = (p); \ __z = (z); \ Z_RES_P(__z) = _res; \ Z_TYPE_INFO_P(__z) = IS_RESOURCE_EX; \ } while (0) #define ZVAL_NEW_PERSISTENT_RES(z, h, p, t) do { \ zend_resource *_res = \ (zend_resource *) malloc(sizeof(zend_resource)); \ zval *__z; \ GC_SET_REFCOUNT(_res, 1); \ GC_TYPE_INFO(_res) = GC_RESOURCE | \ (GC_PERSISTENT << GC_FLAGS_SHIFT); \ _res->handle = (h); \ _res->type = (t); \ _res->ptr = (p); \ __z = (z); \ Z_RES_P(__z) = _res; \ Z_TYPE_INFO_P(__z) = IS_RESOURCE_EX; \ } while (0) #define ZVAL_REF(z, r) do { \ zval *__z = (z); \ Z_REF_P(__z) = (r); \ Z_TYPE_INFO_P(__z) = IS_REFERENCE_EX; \ } while (0) #define ZVAL_NEW_EMPTY_REF(z) do { \ zend_reference *_ref = \ (zend_reference *) emalloc(sizeof(zend_reference)); \ GC_SET_REFCOUNT(_ref, 1); \ GC_TYPE_INFO(_ref) = GC_REFERENCE; \ _ref->sources.ptr = NULL; \ Z_REF_P(z) = _ref; \ Z_TYPE_INFO_P(z) = IS_REFERENCE_EX; \ } while (0) #define ZVAL_NEW_REF(z, r) do { \ zend_reference *_ref = \ (zend_reference *) emalloc(sizeof(zend_reference)); \ GC_SET_REFCOUNT(_ref, 1); \ GC_TYPE_INFO(_ref) = GC_REFERENCE; \ ZVAL_COPY_VALUE(&_ref->val, r); \ _ref->sources.ptr = NULL; \ Z_REF_P(z) = _ref; \ Z_TYPE_INFO_P(z) = IS_REFERENCE_EX; \ } while (0) #define ZVAL_MAKE_REF_EX(z, refcount) do { \ zval *_z = (z); \ zend_reference *_ref = \ (zend_reference *) emalloc(sizeof(zend_reference)); \ GC_SET_REFCOUNT(_ref, (refcount)); \ GC_TYPE_INFO(_ref) = GC_REFERENCE; \ ZVAL_COPY_VALUE(&_ref->val, _z); \ _ref->sources.ptr = NULL; \ Z_REF_P(_z) = _ref; \ Z_TYPE_INFO_P(_z) = IS_REFERENCE_EX; \ } while (0) #define ZVAL_NEW_PERSISTENT_REF(z, r) do { \ zend_reference *_ref = \ (zend_reference *) malloc(sizeof(zend_reference)); \ GC_SET_REFCOUNT(_ref, 1); \ GC_TYPE_INFO(_ref) = GC_REFERENCE | \ (GC_PERSISTENT << GC_FLAGS_SHIFT); \ ZVAL_COPY_VALUE(&_ref->val, r); \ _ref->sources.ptr = NULL; \ Z_REF_P(z) = _ref; \ Z_TYPE_INFO_P(z) = IS_REFERENCE_EX; \ } while (0) #define ZVAL_AST(z, ast) do { \ zval *__z = (z); \ Z_AST_P(__z) = ast; \ Z_TYPE_INFO_P(__z) = IS_CONSTANT_AST_EX; \ } while (0) #define ZVAL_INDIRECT(z, v) do { \ Z_INDIRECT_P(z) = (v); \ Z_TYPE_INFO_P(z) = IS_INDIRECT; \ } while (0) #define ZVAL_PTR(z, p) do { \ Z_PTR_P(z) = (p); \ Z_TYPE_INFO_P(z) = IS_PTR; \ } while (0) #define ZVAL_FUNC(z, f) do { \ Z_FUNC_P(z) = (f); \ Z_TYPE_INFO_P(z) = IS_PTR; \ } while (0) #define ZVAL_CE(z, c) do { \ Z_CE_P(z) = (c); \ Z_TYPE_INFO_P(z) = IS_PTR; \ } while (0) #define ZVAL_ALIAS_PTR(z, p) do { \ Z_PTR_P(z) = (p); \ Z_TYPE_INFO_P(z) = IS_ALIAS_PTR; \ } while (0) #define ZVAL_ERROR(z) do { \ Z_TYPE_INFO_P(z) = _IS_ERROR; \ } while (0) #define Z_REFCOUNT_P(pz) zval_refcount_p(pz) #define Z_SET_REFCOUNT_P(pz, rc) zval_set_refcount_p(pz, rc) #define Z_ADDREF_P(pz) zval_addref_p(pz) #define Z_DELREF_P(pz) zval_delref_p(pz) #define Z_REFCOUNT(z) Z_REFCOUNT_P(&(z)) #define Z_SET_REFCOUNT(z, rc) Z_SET_REFCOUNT_P(&(z), rc) #define Z_ADDREF(z) Z_ADDREF_P(&(z)) #define Z_DELREF(z) Z_DELREF_P(&(z)) #define Z_TRY_ADDREF_P(pz) do { \ if (Z_REFCOUNTED_P((pz))) { \ Z_ADDREF_P((pz)); \ } \ } while (0) #define Z_TRY_DELREF_P(pz) do { \ if (Z_REFCOUNTED_P((pz))) { \ Z_DELREF_P((pz)); \ } \ } while (0) #define Z_TRY_ADDREF(z) Z_TRY_ADDREF_P(&(z)) #define Z_TRY_DELREF(z) Z_TRY_DELREF_P(&(z)) #ifndef ZEND_RC_DEBUG # define ZEND_RC_DEBUG 0 #endif #if ZEND_RC_DEBUG extern ZEND_API bool zend_rc_debug; /* The GC_PERSISTENT flag is reused for IS_OBJ_WEAKLY_REFERENCED on objects. * Skip checks for OBJECT/NULL type to avoid interpreting the flag incorrectly. */ # define ZEND_RC_MOD_CHECK(p) do { \ if (zend_rc_debug) { \ uint8_t type = zval_gc_type((p)->u.type_info); \ if (type != IS_OBJECT && type != IS_NULL) { \ ZEND_ASSERT(!(zval_gc_flags((p)->u.type_info) & GC_IMMUTABLE)); \ ZEND_ASSERT((zval_gc_flags((p)->u.type_info) & (GC_PERSISTENT|GC_PERSISTENT_LOCAL)) != GC_PERSISTENT); \ } \ } \ } while (0) # define GC_MAKE_PERSISTENT_LOCAL(p) do { \ GC_ADD_FLAGS(p, GC_PERSISTENT_LOCAL); \ } while (0) #else # define ZEND_RC_MOD_CHECK(p) \ do { } while (0) # define GC_MAKE_PERSISTENT_LOCAL(p) \ do { } while (0) #endif static zend_always_inline uint32_t zend_gc_refcount(const zend_refcounted_h *p) { return p->refcount; } static zend_always_inline uint32_t zend_gc_set_refcount(zend_refcounted_h *p, uint32_t rc) { p->refcount = rc; return p->refcount; } static zend_always_inline uint32_t zend_gc_addref(zend_refcounted_h *p) { ZEND_RC_MOD_CHECK(p); return ++(p->refcount); } static zend_always_inline void zend_gc_try_addref(zend_refcounted_h *p) { if (!(p->u.type_info & GC_IMMUTABLE)) { ZEND_RC_MOD_CHECK(p); ++p->refcount; } } static zend_always_inline void zend_gc_try_delref(zend_refcounted_h *p) { if (!(p->u.type_info & GC_IMMUTABLE)) { ZEND_RC_MOD_CHECK(p); --p->refcount; } } static zend_always_inline uint32_t zend_gc_delref(zend_refcounted_h *p) { ZEND_ASSERT(p->refcount > 0); ZEND_RC_MOD_CHECK(p); return --(p->refcount); } static zend_always_inline uint32_t zend_gc_addref_ex(zend_refcounted_h *p, uint32_t rc) { ZEND_RC_MOD_CHECK(p); p->refcount += rc; return p->refcount; } static zend_always_inline uint32_t zend_gc_delref_ex(zend_refcounted_h *p, uint32_t rc) { ZEND_RC_MOD_CHECK(p); p->refcount -= rc; return p->refcount; } static zend_always_inline uint32_t zval_refcount_p(const zval* pz) { #if ZEND_DEBUG ZEND_ASSERT(Z_REFCOUNTED_P(pz) || Z_TYPE_P(pz) == IS_ARRAY); #endif return GC_REFCOUNT(Z_COUNTED_P(pz)); } static zend_always_inline uint32_t zval_set_refcount_p(zval* pz, uint32_t rc) { ZEND_ASSERT(Z_REFCOUNTED_P(pz)); return GC_SET_REFCOUNT(Z_COUNTED_P(pz), rc); } static zend_always_inline uint32_t zval_addref_p(zval* pz) { ZEND_ASSERT(Z_REFCOUNTED_P(pz)); return GC_ADDREF(Z_COUNTED_P(pz)); } static zend_always_inline uint32_t zval_delref_p(zval* pz) { ZEND_ASSERT(Z_REFCOUNTED_P(pz)); return GC_DELREF(Z_COUNTED_P(pz)); } #if SIZEOF_SIZE_T == 4 # define ZVAL_COPY_VALUE_EX(z, v, gc, t) \ do { \ uint32_t _w2 = v->value.ww.w2; \ Z_COUNTED_P(z) = gc; \ z->value.ww.w2 = _w2; \ Z_TYPE_INFO_P(z) = t; \ } while (0) #elif SIZEOF_SIZE_T == 8 # define ZVAL_COPY_VALUE_EX(z, v, gc, t) \ do { \ Z_COUNTED_P(z) = gc; \ Z_TYPE_INFO_P(z) = t; \ } while (0) #else # error "Unknown SIZEOF_SIZE_T" #endif #define ZVAL_COPY_VALUE(z, v) \ do { \ zval *_z1 = (z); \ const zval *_z2 = (v); \ zend_refcounted *_gc = Z_COUNTED_P(_z2); \ uint32_t _t = Z_TYPE_INFO_P(_z2); \ ZVAL_COPY_VALUE_EX(_z1, _z2, _gc, _t); \ } while (0) #define ZVAL_COPY(z, v) \ do { \ zval *_z1 = (z); \ const zval *_z2 = (v); \ zend_refcounted *_gc = Z_COUNTED_P(_z2); \ uint32_t _t = Z_TYPE_INFO_P(_z2); \ ZVAL_COPY_VALUE_EX(_z1, _z2, _gc, _t); \ if (Z_TYPE_INFO_REFCOUNTED(_t)) { \ GC_ADDREF(_gc); \ } \ } while (0) #define ZVAL_DUP(z, v) \ do { \ zval *_z1 = (z); \ const zval *_z2 = (v); \ zend_refcounted *_gc = Z_COUNTED_P(_z2); \ uint32_t _t = Z_TYPE_INFO_P(_z2); \ if ((_t & Z_TYPE_MASK) == IS_ARRAY) { \ ZVAL_ARR(_z1, zend_array_dup((zend_array*)_gc));\ } else { \ if (Z_TYPE_INFO_REFCOUNTED(_t)) { \ GC_ADDREF(_gc); \ } \ ZVAL_COPY_VALUE_EX(_z1, _z2, _gc, _t); \ } \ } while (0) /* ZVAL_COPY_OR_DUP() should be used instead of ZVAL_COPY() and ZVAL_DUP() * in all places where the source may be a persistent zval. */ #define ZVAL_COPY_OR_DUP(z, v) \ do { \ zval *_z1 = (z); \ const zval *_z2 = (v); \ zend_refcounted *_gc = Z_COUNTED_P(_z2); \ uint32_t _t = Z_TYPE_INFO_P(_z2); \ ZVAL_COPY_VALUE_EX(_z1, _z2, _gc, _t); \ if (Z_TYPE_INFO_REFCOUNTED(_t)) { \ /* Objects reuse PERSISTENT as WEAKLY_REFERENCED */ \ if (EXPECTED(!(GC_FLAGS(_gc) & GC_PERSISTENT) \ || GC_TYPE(_gc) == IS_OBJECT)) { \ GC_ADDREF(_gc); \ } else { \ zval_copy_ctor_func(_z1); \ } \ } \ } while (0) #define ZVAL_DEREF(z) do { \ if (UNEXPECTED(Z_ISREF_P(z))) { \ (z) = Z_REFVAL_P(z); \ } \ } while (0) #define ZVAL_DEINDIRECT(z) do { \ if (Z_TYPE_P(z) == IS_INDIRECT) { \ (z) = Z_INDIRECT_P(z); \ } \ } while (0) #define ZVAL_OPT_DEREF(z) do { \ if (UNEXPECTED(Z_OPT_ISREF_P(z))) { \ (z) = Z_REFVAL_P(z); \ } \ } while (0) #define ZVAL_MAKE_REF(zv) do { \ zval *__zv = (zv); \ if (!Z_ISREF_P(__zv)) { \ ZVAL_NEW_REF(__zv, __zv); \ } \ } while (0) #define ZVAL_UNREF(z) do { \ zval *_z = (z); \ zend_reference *ref; \ ZEND_ASSERT(Z_ISREF_P(_z)); \ ref = Z_REF_P(_z); \ ZVAL_COPY_VALUE(_z, &ref->val); \ efree_size(ref, sizeof(zend_reference)); \ } while (0) #define ZVAL_COPY_DEREF(z, v) do { \ zval *_z3 = (v); \ if (Z_OPT_REFCOUNTED_P(_z3)) { \ if (UNEXPECTED(Z_OPT_ISREF_P(_z3))) { \ _z3 = Z_REFVAL_P(_z3); \ if (Z_OPT_REFCOUNTED_P(_z3)) { \ Z_ADDREF_P(_z3); \ } \ } else { \ Z_ADDREF_P(_z3); \ } \ } \ ZVAL_COPY_VALUE(z, _z3); \ } while (0) #define SEPARATE_STRING(zv) do { \ zval *_zv = (zv); \ if (Z_REFCOUNT_P(_zv) > 1) { \ zend_string *_str = Z_STR_P(_zv); \ ZEND_ASSERT(Z_REFCOUNTED_P(_zv)); \ ZEND_ASSERT(!ZSTR_IS_INTERNED(_str)); \ ZVAL_NEW_STR(_zv, zend_string_init( \ ZSTR_VAL(_str), ZSTR_LEN(_str), 0)); \ GC_DELREF(_str); \ } \ } while (0) #define SEPARATE_ARRAY(zv) do { \ zval *__zv = (zv); \ zend_array *_arr = Z_ARR_P(__zv); \ if (UNEXPECTED(GC_REFCOUNT(_arr) > 1)) { \ ZVAL_ARR(__zv, zend_array_dup(_arr)); \ GC_TRY_DELREF(_arr); \ } \ } while (0) #define SEPARATE_ZVAL_NOREF(zv) do { \ zval *_zv = (zv); \ ZEND_ASSERT(Z_TYPE_P(_zv) != IS_REFERENCE); \ if (Z_TYPE_P(_zv) == IS_ARRAY) { \ SEPARATE_ARRAY(_zv); \ } \ } while (0) #define SEPARATE_ZVAL(zv) do { \ zval *_zv = (zv); \ if (Z_ISREF_P(_zv)) { \ zend_reference *_r = Z_REF_P(_zv); \ ZVAL_COPY_VALUE(_zv, &_r->val); \ if (GC_DELREF(_r) == 0) { \ efree_size(_r, sizeof(zend_reference)); \ } else if (Z_OPT_TYPE_P(_zv) == IS_ARRAY) { \ ZVAL_ARR(_zv, zend_array_dup(Z_ARR_P(_zv)));\ break; \ } else if (Z_OPT_REFCOUNTED_P(_zv)) { \ Z_ADDREF_P(_zv); \ break; \ } \ } \ if (Z_TYPE_P(_zv) == IS_ARRAY) { \ SEPARATE_ARRAY(_zv); \ } \ } while (0) /* Properties store a flag distinguishing unset and uninitialized properties * (both use IS_UNDEF type) in the Z_EXTRA space. As such we also need to copy * the Z_EXTRA space when copying property default values etc. We define separate * macros for this purpose, so this workaround is easier to remove in the future. */ #define IS_PROP_UNINIT (1<<0) #define IS_PROP_REINITABLE (1<<1) /* It has impact only on readonly properties */ #define Z_PROP_FLAG_P(z) Z_EXTRA_P(z) #define ZVAL_COPY_VALUE_PROP(z, v) \ do { *(z) = *(v); } while (0) #define ZVAL_COPY_PROP(z, v) \ do { ZVAL_COPY(z, v); Z_PROP_FLAG_P(z) = Z_PROP_FLAG_P(v); } while (0) #define ZVAL_COPY_OR_DUP_PROP(z, v) \ do { ZVAL_COPY_OR_DUP(z, v); Z_PROP_FLAG_P(z) = Z_PROP_FLAG_P(v); } while (0) static zend_always_inline bool zend_may_modify_arg_in_place(const zval *arg) { return Z_REFCOUNTED_P(arg) && !(GC_FLAGS(Z_COUNTED_P(arg)) & (GC_IMMUTABLE | GC_PERSISTENT)) && Z_REFCOUNT_P(arg) == 1; } #endif /* ZEND_TYPES_H */
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