mirrors/php-src
0
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2024-12-03 06:44:07 +08:00
Code Issues Packages Projects Releases Wiki Activity
40f463b560
php-src/ext/opcache/zend_persist.c
Dmitry Stogov 2db6d8e415 Merge branch 'PHP-7.1' into PHP-7.2 
* PHP-7.1:
  Fixed use-after-free
2018-03-14 09:14:16 +03:00

898 lines
28 KiB
C
Raw Blame History

/*
+----------------------------------------------------------------------+
| Zend OPcache |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2018 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP 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.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
| Stanislav Malyshev <stas@zend.com> |
| Dmitry Stogov <dmitry@zend.com> |
+----------------------------------------------------------------------+
*/
#include "zend.h"
#include "ZendAccelerator.h"
#include "zend_persist.h"
#include "zend_extensions.h"
#include "zend_shared_alloc.h"
#include "zend_vm.h"
#include "zend_constants.h"
#include "zend_operators.h"
#define zend_accel_store(p, size) \
(p = _zend_shared_memdup((void*)p, size, 1))
#define zend_accel_memdup(p, size) \
_zend_shared_memdup((void*)p, size, 0)
#ifdef HAVE_OPCACHE_FILE_CACHE
#define zend_set_str_gc_flags(str) do { \
if (file_cache_only) { \
GC_FLAGS(str) = IS_STR_INTERNED; \
} else { \
GC_FLAGS(str) = IS_STR_INTERNED | IS_STR_PERMANENT; \
} \
} while (0)
#else
#define zend_set_str_gc_flags(str) GC_FLAGS(str) = IS_STR_INTERNED | IS_STR_PERMANENT
#endif
#define zend_accel_store_string(str) do { \
zend_string *new_str = zend_shared_alloc_get_xlat_entry(str); \
if (new_str) { \
zend_string_release(str); \
str = new_str; \
} else { \
new_str = zend_accel_memdup((void*)str, _ZSTR_STRUCT_SIZE(ZSTR_LEN(str))); \
zend_string_release(str); \
str = new_str; \
zend_string_hash_val(str); \
zend_set_str_gc_flags(str); \
} \
} while (0)
#define zend_accel_memdup_string(str) do { \
str = zend_accel_memdup(str, _ZSTR_STRUCT_SIZE(ZSTR_LEN(str))); \
zend_string_hash_val(str); \
zend_set_str_gc_flags(str); \
} while (0)
#define zend_accel_store_interned_string(str) do { \
if (!IS_ACCEL_INTERNED(str)) { \
zend_accel_store_string(str); \
} \
} while (0)
#define zend_accel_memdup_interned_string(str) do { \
if (!IS_ACCEL_INTERNED(str)) { \
zend_accel_memdup_string(str); \
} \
} while (0)
typedef void (*zend_persist_func_t)(zval*);
static void zend_persist_zval(zval *z);
static const uint32_t uninitialized_bucket[-HT_MIN_MASK] =
{HT_INVALID_IDX, HT_INVALID_IDX};
static void zend_hash_persist(HashTable *ht, zend_persist_func_t pPersistElement)
{
uint32_t idx, nIndex;
Bucket *p;
ht->pDestructor = NULL;
if (!(ht->u.flags & HASH_FLAG_INITIALIZED)) {
if (EXPECTED(!ZCG(current_persistent_script)->corrupted)) {
HT_SET_DATA_ADDR(ht, &ZCSG(uninitialized_bucket));
} else {
HT_SET_DATA_ADDR(ht, &uninitialized_bucket);
}
return;
}
if (ht->nNumUsed == 0) {
efree(HT_GET_DATA_ADDR(ht));
ht->nTableMask = HT_MIN_MASK;
if (EXPECTED(!ZCG(current_persistent_script)->corrupted)) {
HT_SET_DATA_ADDR(ht, &ZCSG(uninitialized_bucket));
} else {
HT_SET_DATA_ADDR(ht, &uninitialized_bucket);
}
ht->u.flags &= ~HASH_FLAG_INITIALIZED;
return;
}
if (ht->u.flags & HASH_FLAG_PACKED) {
void *data = HT_GET_DATA_ADDR(ht);
zend_accel_store(data, HT_USED_SIZE(ht));
HT_SET_DATA_ADDR(ht, data);
} else if (ht->nNumUsed < (uint32_t)(-(int32_t)ht->nTableMask) / 2) {
/* compact table */
void *old_data = HT_GET_DATA_ADDR(ht);
Bucket *old_buckets = ht->arData;
uint32_t hash_size;
if (ht->nNumUsed <= HT_MIN_SIZE) {
hash_size = HT_MIN_SIZE;
} else {
hash_size = (uint32_t)(-(int32_t)ht->nTableMask);
while (hash_size >> 1 > ht->nNumUsed) {
hash_size >>= 1;
}
}
ht->nTableMask = (uint32_t)(-(int32_t)hash_size);
ZEND_ASSERT(((zend_uintptr_t)ZCG(mem) & 0x7) == 0); /* should be 8 byte aligned */
HT_SET_DATA_ADDR(ht, ZCG(mem));
ZCG(mem) = (void*)((char*)ZCG(mem) + ZEND_ALIGNED_SIZE((hash_size * sizeof(uint32_t)) + (ht->nNumUsed * sizeof(Bucket))));
HT_HASH_RESET(ht);
memcpy(ht->arData, old_buckets, ht->nNumUsed * sizeof(Bucket));
efree(old_data);
for (idx = 0; idx < ht->nNumUsed; idx++) {
p = ht->arData + idx;
if (Z_TYPE(p->val) == IS_UNDEF) continue;
/* persist bucket and key */
if (p->key) {
zend_accel_store_interned_string(p->key);
}
/* persist the data itself */
pPersistElement(&p->val);
nIndex = p->h | ht->nTableMask;
Z_NEXT(p->val) = HT_HASH(ht, nIndex);
HT_HASH(ht, nIndex) = HT_IDX_TO_HASH(idx);
}
return;
} else {
void *data = ZCG(mem);
void *old_data = HT_GET_DATA_ADDR(ht);
ZEND_ASSERT(((zend_uintptr_t)ZCG(mem) & 0x7) == 0); /* should be 8 byte aligned */
ZCG(mem) = (void*)((char*)data + ZEND_ALIGNED_SIZE(HT_USED_SIZE(ht)));
memcpy(data, old_data, HT_USED_SIZE(ht));
efree(old_data);
HT_SET_DATA_ADDR(ht, data);
}
for (idx = 0; idx < ht->nNumUsed; idx++) {
p = ht->arData + idx;
if (Z_TYPE(p->val) == IS_UNDEF) continue;
/* persist bucket and key */
if (p->key) {
zend_accel_store_interned_string(p->key);
}
/* persist the data itself */
pPersistElement(&p->val);
}
}
static void zend_hash_persist_immutable(HashTable *ht)
{
uint32_t idx, nIndex;
Bucket *p;
ht->pDestructor = NULL;
if (!(ht->u.flags & HASH_FLAG_INITIALIZED)) {
if (EXPECTED(!ZCG(current_persistent_script)->corrupted)) {
HT_SET_DATA_ADDR(ht, &ZCSG(uninitialized_bucket));
} else {
HT_SET_DATA_ADDR(ht, &uninitialized_bucket);
}
return;
}
if (ht->nNumUsed == 0) {
efree(HT_GET_DATA_ADDR(ht));
ht->nTableMask = HT_MIN_MASK;
if (EXPECTED(!ZCG(current_persistent_script)->corrupted)) {
HT_SET_DATA_ADDR(ht, &ZCSG(uninitialized_bucket));
} else {
HT_SET_DATA_ADDR(ht, &uninitialized_bucket);
}
ht->u.flags &= ~HASH_FLAG_INITIALIZED;
return;
}
if (ht->u.flags & HASH_FLAG_PACKED) {
HT_SET_DATA_ADDR(ht, zend_accel_memdup(HT_GET_DATA_ADDR(ht), HT_USED_SIZE(ht)));
} else if (ht->nNumUsed < (uint32_t)(-(int32_t)ht->nTableMask) / 2) {
/* compact table */
void *old_data = HT_GET_DATA_ADDR(ht);
Bucket *old_buckets = ht->arData;
uint32_t hash_size;
if (ht->nNumUsed <= HT_MIN_SIZE) {
hash_size = HT_MIN_SIZE;
} else {
hash_size = (uint32_t)(-(int32_t)ht->nTableMask);
while (hash_size >> 1 > ht->nNumUsed) {
hash_size >>= 1;
}
}
ht->nTableMask = (uint32_t)(-(int32_t)hash_size);
ZEND_ASSERT(((zend_uintptr_t)ZCG(mem) & 0x7) == 0); /* should be 8 byte aligned */
HT_SET_DATA_ADDR(ht, ZCG(mem));
ZCG(mem) = (void*)((char*)ZCG(mem) + (hash_size * sizeof(uint32_t)) + (ht->nNumUsed * sizeof(Bucket)));
HT_HASH_RESET(ht);
memcpy(ht->arData, old_buckets, ht->nNumUsed * sizeof(Bucket));
efree(old_data);
for (idx = 0; idx < ht->nNumUsed; idx++) {
p = ht->arData + idx;
if (Z_TYPE(p->val) == IS_UNDEF) continue;
/* persist bucket and key */
if (p->key) {
zend_accel_memdup_interned_string(p->key);
}
/* persist the data itself */
zend_persist_zval(&p->val);
nIndex = p->h | ht->nTableMask;
Z_NEXT(p->val) = HT_HASH(ht, nIndex);
HT_HASH(ht, nIndex) = HT_IDX_TO_HASH(idx);
}
return;
} else {
void *data = ZCG(mem);
ZEND_ASSERT(((zend_uintptr_t)ZCG(mem) & 0x7) == 0); /* should be 8 byte aligned */
ZCG(mem) = (void*)((char*)data + ZEND_ALIGNED_SIZE(HT_USED_SIZE(ht)));
memcpy(data, HT_GET_DATA_ADDR(ht), HT_USED_SIZE(ht));
HT_SET_DATA_ADDR(ht, data);
}
for (idx = 0; idx < ht->nNumUsed; idx++) {
p = ht->arData + idx;
if (Z_TYPE(p->val) == IS_UNDEF) continue;
/* persist bucket and key */
if (p->key) {
zend_accel_memdup_interned_string(p->key);
}
/* persist the data itself */
zend_persist_zval(&p->val);
}
}
static zend_ast *zend_persist_ast(zend_ast *ast)
{
uint32_t i;
zend_ast *node;
if (ast->kind == ZEND_AST_ZVAL) {
zend_ast_zval *copy = zend_accel_memdup(ast, sizeof(zend_ast_zval));
zend_persist_zval(&copy->val);
node = (zend_ast *) copy;
} else if (zend_ast_is_list(ast)) {
zend_ast_list *list = zend_ast_get_list(ast);
zend_ast_list *copy = zend_accel_memdup(ast,
sizeof(zend_ast_list) - sizeof(zend_ast *) + sizeof(zend_ast *) * list->children);
for (i = 0; i < list->children; i++) {
if (copy->child[i]) {
copy->child[i] = zend_persist_ast(copy->child[i]);
}
}
node = (zend_ast *) copy;
} else {
uint32_t children = zend_ast_get_num_children(ast);
node = zend_accel_memdup(ast, sizeof(zend_ast) - sizeof(zend_ast *) + sizeof(zend_ast *) * children);
for (i = 0; i < children; i++) {
if (node->child[i]) {
node->child[i] = zend_persist_ast(node->child[i]);
}
}
}
efree(ast);
return node;
}
static void zend_persist_zval(zval *z)
{
void *new_ptr;
switch (Z_TYPE_P(z)) {
case IS_STRING:
case IS_CONSTANT:
zend_accel_store_interned_string(Z_STR_P(z));
Z_TYPE_FLAGS_P(z) &= ~ (IS_TYPE_REFCOUNTED | IS_TYPE_COPYABLE);
break;
case IS_ARRAY:
new_ptr = zend_shared_alloc_get_xlat_entry(Z_ARR_P(z));
if (new_ptr) {
Z_ARR_P(z) = new_ptr;
Z_TYPE_FLAGS_P(z) = IS_TYPE_COPYABLE;
} else {
if (!Z_REFCOUNTED_P(z)) {
Z_ARR_P(z) = zend_accel_memdup(Z_ARR_P(z), sizeof(zend_array));
zend_hash_persist_immutable(Z_ARRVAL_P(z));
} else {
GC_REMOVE_FROM_BUFFER(Z_ARR_P(z));
zend_accel_store(Z_ARR_P(z), sizeof(zend_array));
zend_hash_persist(Z_ARRVAL_P(z), zend_persist_zval);
/* make immutable array */
Z_TYPE_FLAGS_P(z) = IS_TYPE_COPYABLE;
GC_REFCOUNT(Z_COUNTED_P(z)) = 2;
GC_FLAGS(Z_COUNTED_P(z)) |= IS_ARRAY_IMMUTABLE;
Z_ARRVAL_P(z)->u.flags |= HASH_FLAG_STATIC_KEYS;
Z_ARRVAL_P(z)->u.flags &= ~HASH_FLAG_APPLY_PROTECTION;
}
}
break;
case IS_REFERENCE:
new_ptr = zend_shared_alloc_get_xlat_entry(Z_REF_P(z));
if (new_ptr) {
Z_REF_P(z) = new_ptr;
} else {
zend_accel_store(Z_REF_P(z), sizeof(zend_reference));
zend_persist_zval(Z_REFVAL_P(z));
}
break;
case IS_CONSTANT_AST:
new_ptr = zend_shared_alloc_get_xlat_entry(Z_AST_P(z));
if (new_ptr) {
Z_AST_P(z) = new_ptr;
Z_TYPE_FLAGS_P(z) = IS_TYPE_CONSTANT | IS_TYPE_COPYABLE;
} else {
zend_accel_store(Z_AST_P(z), sizeof(zend_ast_ref));
Z_ASTVAL_P(z) = zend_persist_ast(Z_ASTVAL_P(z));
Z_TYPE_FLAGS_P(z) = IS_TYPE_CONSTANT | IS_TYPE_COPYABLE;
GC_REFCOUNT(Z_COUNTED_P(z)) = 2;
}
break;
}
}
static void zend_persist_op_array_ex(zend_op_array *op_array, zend_persistent_script* main_persistent_script)
{
int already_stored = 0;
zend_op *persist_ptr;
zval *orig_literals = NULL;
if (op_array->type != ZEND_USER_FUNCTION) {
return;
}
if (op_array->refcount && --(*op_array->refcount) == 0) {
efree(op_array->refcount);
}
op_array->refcount = NULL;
if (main_persistent_script) {
zend_execute_data *orig_execute_data = EG(current_execute_data);
zend_execute_data fake_execute_data;
zval *offset;
memset(&fake_execute_data, 0, sizeof(fake_execute_data));
fake_execute_data.func = (zend_function*)op_array;
EG(current_execute_data) = &fake_execute_data;
if ((offset = zend_get_constant_str("__COMPILER_HALT_OFFSET__", sizeof("__COMPILER_HALT_OFFSET__") - 1)) != NULL) {
main_persistent_script->compiler_halt_offset = Z_LVAL_P(offset);
}
EG(current_execute_data) = orig_execute_data;
}
if (op_array->static_variables) {
HashTable *stored = zend_shared_alloc_get_xlat_entry(op_array->static_variables);
if (stored) {
op_array->static_variables = stored;
} else {
zend_hash_persist(op_array->static_variables, zend_persist_zval);
zend_accel_store(op_array->static_variables, sizeof(HashTable));
/* make immutable array */
GC_REFCOUNT(op_array->static_variables) = 2;
GC_TYPE_INFO(op_array->static_variables) = IS_ARRAY | (IS_ARRAY_IMMUTABLE << 8);
op_array->static_variables->u.flags |= HASH_FLAG_STATIC_KEYS;
op_array->static_variables->u.flags &= ~HASH_FLAG_APPLY_PROTECTION;
}
}
if (zend_shared_alloc_get_xlat_entry(op_array->opcodes)) {
already_stored = 1;
}
if (op_array->literals) {
if (already_stored) {
orig_literals = zend_shared_alloc_get_xlat_entry(op_array->literals);
ZEND_ASSERT(orig_literals != NULL);
op_array->literals = orig_literals;
} else {
zval *p = zend_accel_memdup(op_array->literals, sizeof(zval) * op_array->last_literal);
zval *end = p + op_array->last_literal;
orig_literals = op_array->literals;
op_array->literals = p;
while (p < end) {
zend_persist_zval(p);
p++;
}
efree(orig_literals);
}
}
if (already_stored) {
persist_ptr = zend_shared_alloc_get_xlat_entry(op_array->opcodes);
ZEND_ASSERT(persist_ptr != NULL);
op_array->opcodes = persist_ptr;
} else {
zend_op *new_opcodes = zend_accel_memdup(op_array->opcodes, sizeof(zend_op) * op_array->last);
#if ZEND_USE_ABS_CONST_ADDR || ZEND_USE_ABS_JMP_ADDR
zend_op *opline = new_opcodes;
zend_op *end = new_opcodes + op_array->last;
int offset = 0;
for (; opline < end ; opline++, offset++) {
# if ZEND_USE_ABS_CONST_ADDR
if (opline->op1_type == IS_CONST) {
opline->op1.zv = (zval*)((char*)opline->op1.zv + ((char*)op_array->literals - (char*)orig_literals));
}
if (opline->op2_type == IS_CONST) {
opline->op2.zv = (zval*)((char*)opline->op2.zv + ((char*)op_array->literals - (char*)orig_literals));
}
# endif
# if ZEND_USE_ABS_JMP_ADDR
if (op_array->fn_flags & ZEND_ACC_DONE_PASS_TWO) {
/* fix jumps to point to new array */
switch (opline->opcode) {
case ZEND_JMP:
case ZEND_FAST_CALL:
opline->op1.jmp_addr = &new_opcodes[opline->op1.jmp_addr - op_array->opcodes];
break;
case ZEND_JMPZNZ:
/* relative extended_value don't have to be changed */
/* break omitted intentionally */
case ZEND_JMPZ:
case ZEND_JMPNZ:
case ZEND_JMPZ_EX:
case ZEND_JMPNZ_EX:
case ZEND_JMP_SET:
case ZEND_COALESCE:
case ZEND_FE_RESET_R:
case ZEND_FE_RESET_RW:
case ZEND_ASSERT_CHECK:
opline->op2.jmp_addr = &new_opcodes[opline->op2.jmp_addr - op_array->opcodes];
break;
case ZEND_DECLARE_ANON_CLASS:
case ZEND_DECLARE_ANON_INHERITED_CLASS:
case ZEND_FE_FETCH_R:
case ZEND_FE_FETCH_RW:
case ZEND_SWITCH_LONG:
case ZEND_SWITCH_STRING:
/* relative extended_value don't have to be changed */
break;
}
}
# endif
}
#endif
efree(op_array->opcodes);
op_array->opcodes = new_opcodes;
if (op_array->run_time_cache) {
efree(op_array->run_time_cache);
op_array->run_time_cache = NULL;
}
}
if (op_array->function_name && !IS_ACCEL_INTERNED(op_array->function_name)) {
zend_string *new_name;
if (already_stored) {
new_name = zend_shared_alloc_get_xlat_entry(op_array->function_name);
ZEND_ASSERT(new_name != NULL);
op_array->function_name = new_name;
} else {
zend_accel_store_interned_string(op_array->function_name);
}
}
if (op_array->filename) {
/* do not free! PHP has centralized filename storage, compiler will free it */
zend_accel_memdup_string(op_array->filename);
}
if (op_array->arg_info) {
zend_arg_info *arg_info = op_array->arg_info;
uint32_t num_args = op_array->num_args;
if (op_array->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
arg_info--;
num_args++;
}
if (already_stored) {
arg_info = zend_shared_alloc_get_xlat_entry(arg_info);
ZEND_ASSERT(arg_info != NULL);
} else {
uint32_t i;
if (op_array->fn_flags & ZEND_ACC_VARIADIC) {
num_args++;
}
zend_accel_store(arg_info, sizeof(zend_arg_info) * num_args);
for (i = 0; i < num_args; i++) {
if (arg_info[i].name) {
zend_accel_store_interned_string(arg_info[i].name);
}
if (ZEND_TYPE_IS_CLASS(arg_info[i].type)) {
zend_string *type_name = ZEND_TYPE_NAME(arg_info[i].type);
zend_bool allow_null = ZEND_TYPE_ALLOW_NULL(arg_info[i].type);
zend_accel_store_interned_string(type_name);
arg_info[i].type = ZEND_TYPE_ENCODE_CLASS(type_name, allow_null);
}
}
}
if (op_array->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
arg_info++;
}
op_array->arg_info = arg_info;
}
if (op_array->live_range) {
zend_accel_store(op_array->live_range, sizeof(zend_live_range) * op_array->last_live_range);
}
if (op_array->scope) {
op_array->scope = zend_shared_alloc_get_xlat_entry(op_array->scope);
}
if (op_array->doc_comment) {
if (ZCG(accel_directives).save_comments) {
if (already_stored) {
op_array->doc_comment = zend_shared_alloc_get_xlat_entry(op_array->doc_comment);
ZEND_ASSERT(op_array->doc_comment != NULL);
} else {
zend_accel_store_interned_string(op_array->doc_comment);
}
} else {
if (!already_stored) {
zend_string_release(op_array->doc_comment);
}
op_array->doc_comment = NULL;
}
}
if (op_array->try_catch_array) {
zend_accel_store(op_array->try_catch_array, sizeof(zend_try_catch_element) * op_array->last_try_catch);
}
if (op_array->vars) {
if (already_stored) {
persist_ptr = zend_shared_alloc_get_xlat_entry(op_array->vars);
ZEND_ASSERT(persist_ptr != NULL);
op_array->vars = (zend_string**)persist_ptr;
} else {
int i;
zend_accel_store(op_array->vars, sizeof(zend_string*) * op_array->last_var);
for (i = 0; i < op_array->last_var; i++) {
zend_accel_store_interned_string(op_array->vars[i]);
}
}
}
/* "prototype" may be undefined if "scope" isn't set */
if (op_array->scope && op_array->prototype) {
if ((persist_ptr = zend_shared_alloc_get_xlat_entry(op_array->prototype))) {
op_array->prototype = (union _zend_function*)persist_ptr;
}
} else {
op_array->prototype = NULL;
}
ZCG(mem) = (void*)((char*)ZCG(mem) + ZEND_ALIGNED_SIZE(zend_extensions_op_array_persist(op_array, ZCG(mem))));
}
static void zend_persist_op_array(zval *zv)
{
zend_op_array *op_array = Z_PTR_P(zv);
zend_op_array *old_op_array = zend_shared_alloc_get_xlat_entry(op_array);
if (old_op_array) {
Z_PTR_P(zv) = old_op_array;
if (op_array->refcount && --(*op_array->refcount) == 0) {
efree(op_array->refcount);
}
return;
}
memcpy(ZCG(arena_mem), Z_PTR_P(zv), sizeof(zend_op_array));
zend_shared_alloc_register_xlat_entry(Z_PTR_P(zv), ZCG(arena_mem));
Z_PTR_P(zv) = ZCG(arena_mem);
ZCG(arena_mem) = (void*)((char*)ZCG(arena_mem) + ZEND_ALIGNED_SIZE(sizeof(zend_op_array)));
zend_persist_op_array_ex(Z_PTR_P(zv), NULL);
}
static void zend_persist_property_info(zval *zv)
{
zend_property_info *prop = zend_shared_alloc_get_xlat_entry(Z_PTR_P(zv));
if (prop) {
Z_PTR_P(zv) = prop;
return;
}
memcpy(ZCG(arena_mem), Z_PTR_P(zv), sizeof(zend_property_info));
zend_shared_alloc_register_xlat_entry(Z_PTR_P(zv), ZCG(arena_mem));
prop = Z_PTR_P(zv) = ZCG(arena_mem);
ZCG(arena_mem) = (void*)((char*)ZCG(arena_mem) + ZEND_ALIGNED_SIZE(sizeof(zend_property_info)));
prop->ce = zend_shared_alloc_get_xlat_entry(prop->ce);
zend_accel_store_interned_string(prop->name);
if (prop->doc_comment) {
if (ZCG(accel_directives).save_comments) {
zend_accel_store_interned_string(prop->doc_comment);
} else {
if (!zend_shared_alloc_get_xlat_entry(prop->doc_comment)) {
zend_shared_alloc_register_xlat_entry(prop->doc_comment, prop->doc_comment);
}
zend_string_release(prop->doc_comment);
prop->doc_comment = NULL;
}
}
}
static void zend_persist_class_constant(zval *zv)
{
zend_class_constant *c = zend_shared_alloc_get_xlat_entry(Z_PTR_P(zv));
if (c) {
Z_PTR_P(zv) = c;
return;
}
memcpy(ZCG(arena_mem), Z_PTR_P(zv), sizeof(zend_class_constant));
zend_shared_alloc_register_xlat_entry(Z_PTR_P(zv), ZCG(arena_mem));
c = Z_PTR_P(zv) = ZCG(arena_mem);
ZCG(arena_mem) = (void*)((char*)ZCG(arena_mem) + ZEND_ALIGNED_SIZE(sizeof(zend_class_constant)));
zend_persist_zval(&c->value);
c->ce = zend_shared_alloc_get_xlat_entry(c->ce);
if (c->doc_comment) {
if (ZCG(accel_directives).save_comments) {
zend_string *doc_comment = zend_shared_alloc_get_xlat_entry(c->doc_comment);
if (doc_comment) {
c->doc_comment = doc_comment;
} else {
zend_accel_store_interned_string(c->doc_comment);
}
} else {
zend_string *doc_comment = zend_shared_alloc_get_xlat_entry(c->doc_comment);
if (!doc_comment) {
zend_shared_alloc_register_xlat_entry(c->doc_comment, c->doc_comment);
zend_string_release(c->doc_comment);
}
c->doc_comment = NULL;
}
}
}
static void zend_persist_class_entry(zval *zv)
{
zend_class_entry *ce = Z_PTR_P(zv);
if (ce->type == ZEND_USER_CLASS) {
memcpy(ZCG(arena_mem), Z_PTR_P(zv), sizeof(zend_class_entry));
zend_shared_alloc_register_xlat_entry(Z_PTR_P(zv), ZCG(arena_mem));
ce = Z_PTR_P(zv) = ZCG(arena_mem);
ZCG(arena_mem) = (void*)((char*)ZCG(arena_mem) + ZEND_ALIGNED_SIZE(sizeof(zend_class_entry)));
zend_accel_store_interned_string(ce->name);
zend_hash_persist(&ce->function_table, zend_persist_op_array);
if (ce->default_properties_table) {
int i;
zend_accel_store(ce->default_properties_table, sizeof(zval) * ce->default_properties_count);
for (i = 0; i < ce->default_properties_count; i++) {
zend_persist_zval(&ce->default_properties_table[i]);
}
}
if (ce->default_static_members_table) {
int i;
zend_accel_store(ce->default_static_members_table, sizeof(zval) * ce->default_static_members_count);
for (i = 0; i < ce->default_static_members_count; i++) {
zend_persist_zval(&ce->default_static_members_table[i]);
}
}
ce->static_members_table = NULL;
zend_hash_persist(&ce->constants_table, zend_persist_class_constant);
if (ce->info.user.filename) {
/* do not free! PHP has centralized filename storage, compiler will free it */
zend_accel_memdup_string(ce->info.user.filename);
}
if (ce->info.user.doc_comment) {
if (ZCG(accel_directives).save_comments) {
zend_accel_store_interned_string(ce->info.user.doc_comment);
} else {
if (!zend_shared_alloc_get_xlat_entry(ce->info.user.doc_comment)) {
zend_shared_alloc_register_xlat_entry(ce->info.user.doc_comment, ce->info.user.doc_comment);
zend_string_release(ce->info.user.doc_comment);
}
ce->info.user.doc_comment = NULL;
}
}
zend_hash_persist(&ce->properties_info, zend_persist_property_info);
if (ce->num_interfaces && ce->interfaces) {
efree(ce->interfaces);
}
ce->interfaces = NULL; /* will be filled in on fetch */
if (ce->num_traits && ce->traits) {
efree(ce->traits);
}
ce->traits = NULL;
if (ce->trait_aliases) {
int i = 0;
while (ce->trait_aliases[i]) {
if (ce->trait_aliases[i]->trait_method) {
if (ce->trait_aliases[i]->trait_method->method_name) {
zend_accel_store_interned_string(ce->trait_aliases[i]->trait_method->method_name);
}
if (ce->trait_aliases[i]->trait_method->class_name) {
zend_accel_store_interned_string(ce->trait_aliases[i]->trait_method->class_name);
}
ce->trait_aliases[i]->trait_method->ce = NULL;
zend_accel_store(ce->trait_aliases[i]->trait_method,
sizeof(zend_trait_method_reference));
}
if (ce->trait_aliases[i]->alias) {
zend_accel_store_interned_string(ce->trait_aliases[i]->alias);
}
zend_accel_store(ce->trait_aliases[i], sizeof(zend_trait_alias));
i++;
}
zend_accel_store(ce->trait_aliases, sizeof(zend_trait_alias*) * (i + 1));
}
if (ce->trait_precedences) {
int i = 0;
while (ce->trait_precedences[i]) {
zend_accel_store_interned_string(ce->trait_precedences[i]->trait_method->method_name);
zend_accel_store_interned_string(ce->trait_precedences[i]->trait_method->class_name);
ce->trait_precedences[i]->trait_method->ce = NULL;
zend_accel_store(ce->trait_precedences[i]->trait_method,
sizeof(zend_trait_method_reference));
if (ce->trait_precedences[i]->exclude_from_classes) {
int j = 0;
while (ce->trait_precedences[i]->exclude_from_classes[j].class_name) {
zend_accel_store_interned_string(ce->trait_precedences[i]->exclude_from_classes[j].class_name);
j++;
}
zend_accel_store(ce->trait_precedences[i]->exclude_from_classes,
sizeof(zend_class_entry*) * (j + 1));
}
zend_accel_store(ce->trait_precedences[i], sizeof(zend_trait_precedence));
i++;
}
zend_accel_store(
ce->trait_precedences, sizeof(zend_trait_precedence*) * (i + 1));
}
}
}
//static int zend_update_property_info_ce(zval *zv)
//{
// zend_property_info *prop = Z_PTR_P(zv);
//
// prop->ce = zend_shared_alloc_get_xlat_entry(prop->ce);
// return 0;
//}
static int zend_update_parent_ce(zval *zv)
{
zend_class_entry *ce = Z_PTR_P(zv);
if (ce->parent) {
ce->parent = zend_shared_alloc_get_xlat_entry(ce->parent);
}
/* update methods */
if (ce->constructor) {
ce->constructor = zend_shared_alloc_get_xlat_entry(ce->constructor);
}
if (ce->destructor) {
ce->destructor = zend_shared_alloc_get_xlat_entry(ce->destructor);
}
if (ce->clone) {
ce->clone = zend_shared_alloc_get_xlat_entry(ce->clone);
}
if (ce->__get) {
ce->__get = zend_shared_alloc_get_xlat_entry(ce->__get);
}
if (ce->__set) {
ce->__set = zend_shared_alloc_get_xlat_entry(ce->__set);
}
if (ce->__call) {
ce->__call = zend_shared_alloc_get_xlat_entry(ce->__call);
}
if (ce->serialize_func) {
ce->serialize_func = zend_shared_alloc_get_xlat_entry(ce->serialize_func);
}
if (ce->unserialize_func) {
ce->unserialize_func = zend_shared_alloc_get_xlat_entry(ce->unserialize_func);
}
if (ce->__isset) {
ce->__isset = zend_shared_alloc_get_xlat_entry(ce->__isset);
}
if (ce->__unset) {
ce->__unset = zend_shared_alloc_get_xlat_entry(ce->__unset);
}
if (ce->__tostring) {
ce->__tostring = zend_shared_alloc_get_xlat_entry(ce->__tostring);
}
if (ce->__callstatic) {
ce->__callstatic = zend_shared_alloc_get_xlat_entry(ce->__callstatic);
}
if (ce->__debugInfo) {
ce->__debugInfo = zend_shared_alloc_get_xlat_entry(ce->__debugInfo);
}
// zend_hash_apply(&ce->properties_info, (apply_func_t) zend_update_property_info_ce);
return 0;
}
static void zend_accel_persist_class_table(HashTable *class_table)
{
zend_hash_persist(class_table, zend_persist_class_entry);
zend_hash_apply(class_table, (apply_func_t) zend_update_parent_ce);
}
zend_persistent_script *zend_accel_script_persist(zend_persistent_script *script, char **key, unsigned int key_length, int for_shm)
{
script->mem = ZCG(mem);
ZEND_ASSERT(((zend_uintptr_t)ZCG(mem) & 0x7) == 0); /* should be 8 byte aligned */
zend_shared_alloc_clear_xlat_table();
zend_accel_store(script, sizeof(zend_persistent_script));
if (key && *key) {
*key = zend_accel_memdup(*key, key_length + 1);
}
script->corrupted = 0;
ZCG(current_persistent_script) = script;
if (!for_shm) {
/* script is not going to be saved in SHM */
script->corrupted = 1;
}
zend_accel_store_interned_string(script->script.filename);
#ifdef __SSE2__
/* Align to 64-byte boundary */
ZCG(mem) = (void*)(((zend_uintptr_t)ZCG(mem) + 63L) & ~63L);
#else
ZEND_ASSERT(((zend_uintptr_t)ZCG(mem) & 0x7) == 0); /* should be 8 byte aligned */
#endif
script->arena_mem = ZCG(arena_mem) = ZCG(mem);
ZCG(mem) = (void*)((char*)ZCG(mem) + script->arena_size);
zend_accel_persist_class_table(&script->script.class_table);
zend_hash_persist(&script->script.function_table, zend_persist_op_array);
zend_persist_op_array_ex(&script->script.main_op_array, script);
script->corrupted = 0;
ZCG(current_persistent_script) = NULL;
return script;
}
int zend_accel_script_persistable(zend_persistent_script *script)
{
return 1;
}
Reference in New Issue View Git Blame Copy Permalink