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zend.c
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/*
+----------------------------------------------------------------------+
| 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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <[email protected]> |
| Zeev Suraski <[email protected]> |
+----------------------------------------------------------------------+
*/
#include "zend.h"
#include "zend_extensions.h"
#include "zend_modules.h"
#include "zend_constants.h"
#include "zend_list.h"
#include "zend_API.h"
#include "zend_exceptions.h"
#include "zend_builtin_functions.h"
#include "zend_ini.h"
#include "zend_vm.h"
#include "zend_dtrace.h"
#include "zend_virtual_cwd.h"
#include "zend_smart_str.h"
#include "zend_smart_string.h"
#include "zend_cpuinfo.h"
static size_t global_map_ptr_last = 0;
#ifdef ZTS
ZEND_API int compiler_globals_id;
ZEND_API int executor_globals_id;
static HashTable *global_function_table = NULL;
static HashTable *global_class_table = NULL;
static HashTable *global_constants_table = NULL;
static HashTable *global_auto_globals_table = NULL;
static HashTable *global_persistent_list = NULL;
ZEND_TSRMLS_CACHE_DEFINE()
# define GLOBAL_FUNCTION_TABLE global_function_table
# define GLOBAL_CLASS_TABLE global_class_table
# define GLOBAL_CONSTANTS_TABLE global_constants_table
# define GLOBAL_AUTO_GLOBALS_TABLE global_auto_globals_table
#else
# define GLOBAL_FUNCTION_TABLE CG(function_table)
# define GLOBAL_CLASS_TABLE CG(class_table)
# define GLOBAL_AUTO_GLOBALS_TABLE CG(auto_globals)
# define GLOBAL_CONSTANTS_TABLE EG(zend_constants)
#endif
ZEND_API zend_utility_values zend_uv;
ZEND_API zend_bool zend_dtrace_enabled;
/* version information */
static char *zend_version_info;
static uint32_t zend_version_info_length;
#define ZEND_CORE_VERSION_INFO "Zend Engine v" ZEND_VERSION ", Copyright (c) Zend Technologies\n"
#define PRINT_ZVAL_INDENT 4
/* true multithread-shared globals */
ZEND_API zend_class_entry *zend_standard_class_def = NULL;
ZEND_API size_t (*zend_printf)(const char *format, ...);
ZEND_API zend_write_func_t zend_write;
ZEND_API FILE *(*zend_fopen)(const char *filename, zend_string **opened_path);
ZEND_API int (*zend_stream_open_function)(const char *filename, zend_file_handle *handle);
ZEND_API void (*zend_ticks_function)(int ticks);
ZEND_API void (*zend_interrupt_function)(zend_execute_data *execute_data);
ZEND_API void (*zend_error_cb)(int type, const char *error_filename, const uint32_t error_lineno, const char *format, va_list args);
void (*zend_printf_to_smart_string)(smart_string *buf, const char *format, va_list ap);
void (*zend_printf_to_smart_str)(smart_str *buf, const char *format, va_list ap);
ZEND_API char *(*zend_getenv)(char *name, size_t name_len);
ZEND_API zend_string *(*zend_resolve_path)(const char *filename, size_t filename_len);
ZEND_API int (*zend_post_startup_cb)(void) = NULL;
ZEND_API void (*zend_post_shutdown_cb)(void) = NULL;
void (*zend_on_timeout)(int seconds);
static void (*zend_message_dispatcher_p)(zend_long message, const void *data);
static zval *(*zend_get_configuration_directive_p)(zend_string *name);
#if ZEND_RC_DEBUG
ZEND_API zend_bool zend_rc_debug = 0;
#endif
static ZEND_INI_MH(OnUpdateErrorReporting) /* {{{ */
{
if (!new_value) {
EG(error_reporting) = E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED;
} else {
EG(error_reporting) = atoi(ZSTR_VAL(new_value));
}
return SUCCESS;
}
/* }}} */
static ZEND_INI_MH(OnUpdateGCEnabled) /* {{{ */
{
zend_bool val;
val = zend_ini_parse_bool(new_value);
gc_enable(val);
return SUCCESS;
}
/* }}} */
static ZEND_INI_DISP(zend_gc_enabled_displayer_cb) /* {{{ */
{
if (gc_enabled()) {
ZEND_PUTS("On");
} else {
ZEND_PUTS("Off");
}
}
/* }}} */
static ZEND_INI_MH(OnUpdateScriptEncoding) /* {{{ */
{
if (!CG(multibyte)) {
return FAILURE;
}
if (!zend_multibyte_get_functions()) {
return SUCCESS;
}
return zend_multibyte_set_script_encoding_by_string(new_value ? ZSTR_VAL(new_value) : NULL, new_value ? ZSTR_LEN(new_value) : 0);
}
/* }}} */
static ZEND_INI_MH(OnUpdateAssertions) /* {{{ */
{
zend_long *p, val;
#ifndef ZTS
char *base = (char *) mh_arg2;
#else
char *base;
base = (char *) ts_resource(*((int *) mh_arg2));
#endif
p = (zend_long *) (base+(size_t) mh_arg1);
val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
if (stage != ZEND_INI_STAGE_STARTUP &&
stage != ZEND_INI_STAGE_SHUTDOWN &&
*p != val &&
(*p < 0 || val < 0)) {
zend_error(E_WARNING, "zend.assertions may be completely enabled or disabled only in php.ini");
return FAILURE;
}
*p = val;
return SUCCESS;
}
/* }}} */
ZEND_INI_BEGIN()
ZEND_INI_ENTRY("error_reporting", NULL, ZEND_INI_ALL, OnUpdateErrorReporting)
STD_ZEND_INI_ENTRY("zend.assertions", "1", ZEND_INI_ALL, OnUpdateAssertions, assertions, zend_executor_globals, executor_globals)
ZEND_INI_ENTRY3_EX("zend.enable_gc", "1", ZEND_INI_ALL, OnUpdateGCEnabled, NULL, NULL, NULL, zend_gc_enabled_displayer_cb)
STD_ZEND_INI_BOOLEAN("zend.multibyte", "0", ZEND_INI_PERDIR, OnUpdateBool, multibyte, zend_compiler_globals, compiler_globals)
ZEND_INI_ENTRY("zend.script_encoding", NULL, ZEND_INI_ALL, OnUpdateScriptEncoding)
STD_ZEND_INI_BOOLEAN("zend.detect_unicode", "1", ZEND_INI_ALL, OnUpdateBool, detect_unicode, zend_compiler_globals, compiler_globals)
#ifdef ZEND_SIGNALS
STD_ZEND_INI_BOOLEAN("zend.signal_check", "0", ZEND_INI_SYSTEM, OnUpdateBool, check, zend_signal_globals_t, zend_signal_globals)
#endif
ZEND_INI_END()
ZEND_API size_t zend_vspprintf(char **pbuf, size_t max_len, const char *format, va_list ap) /* {{{ */
{
smart_string buf = {0};
/* since there are places where (v)spprintf called without checking for null,
a bit of defensive coding here */
if (!pbuf) {
return 0;
}
zend_printf_to_smart_string(&buf, format, ap);
if (max_len && buf.len > max_len) {
buf.len = max_len;
}
smart_string_0(&buf);
if (buf.c) {
*pbuf = buf.c;
return buf.len;
} else {
*pbuf = estrndup("", 0);
return 0;
}
}
/* }}} */
ZEND_API size_t zend_spprintf(char **message, size_t max_len, const char *format, ...) /* {{{ */
{
va_list arg;
size_t len;
va_start(arg, format);
len = zend_vspprintf(message, max_len, format, arg);
va_end(arg);
return len;
}
/* }}} */
ZEND_API size_t zend_spprintf_unchecked(char **message, size_t max_len, const char *format, ...) /* {{{ */
{
va_list arg;
size_t len;
va_start(arg, format);
len = zend_vspprintf(message, max_len, format, arg);
va_end(arg);
return len;
}
/* }}} */
ZEND_API zend_string *zend_vstrpprintf(size_t max_len, const char *format, va_list ap) /* {{{ */
{
smart_str buf = {0};
zend_printf_to_smart_str(&buf, format, ap);
if (!buf.s) {
return ZSTR_EMPTY_ALLOC();
}
if (max_len && ZSTR_LEN(buf.s) > max_len) {
ZSTR_LEN(buf.s) = max_len;
}
smart_str_0(&buf);
return buf.s;
}
/* }}} */
ZEND_API zend_string *zend_strpprintf(size_t max_len, const char *format, ...) /* {{{ */
{
va_list arg;
zend_string *str;
va_start(arg, format);
str = zend_vstrpprintf(max_len, format, arg);
va_end(arg);
return str;
}
/* }}} */
ZEND_API zend_string *zend_strpprintf_unchecked(size_t max_len, const char *format, ...) /* {{{ */
{
va_list arg;
zend_string *str;
va_start(arg, format);
str = zend_vstrpprintf(max_len, format, arg);
va_end(arg);
return str;
}
/* }}} */
static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent);
static void print_hash(smart_str *buf, HashTable *ht, int indent, zend_bool is_object) /* {{{ */
{
zval *tmp;
zend_string *string_key;
zend_ulong num_key;
int i;
for (i = 0; i < indent; i++) {
smart_str_appendc(buf, ' ');
}
smart_str_appends(buf, "(\n");
indent += PRINT_ZVAL_INDENT;
ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
for (i = 0; i < indent; i++) {
smart_str_appendc(buf, ' ');
}
smart_str_appendc(buf, '[');
if (string_key) {
if (is_object) {
const char *prop_name, *class_name;
size_t prop_len;
int mangled = zend_unmangle_property_name_ex(string_key, &class_name, &prop_name, &prop_len);
smart_str_appendl(buf, prop_name, prop_len);
if (class_name && mangled == SUCCESS) {
if (class_name[0] == '*') {
smart_str_appends(buf, ":protected");
} else {
smart_str_appends(buf, ":");
smart_str_appends(buf, class_name);
smart_str_appends(buf, ":private");
}
}
} else {
smart_str_append(buf, string_key);
}
} else {
smart_str_append_long(buf, num_key);
}
smart_str_appends(buf, "] => ");
zend_print_zval_r_to_buf(buf, tmp, indent+PRINT_ZVAL_INDENT);
smart_str_appends(buf, "\n");
} ZEND_HASH_FOREACH_END();
indent -= PRINT_ZVAL_INDENT;
for (i = 0; i < indent; i++) {
smart_str_appendc(buf, ' ');
}
smart_str_appends(buf, ")\n");
}
/* }}} */
static void print_flat_hash(HashTable *ht) /* {{{ */
{
zval *tmp;
zend_string *string_key;
zend_ulong num_key;
int i = 0;
ZEND_HASH_FOREACH_KEY_VAL_IND(ht, num_key, string_key, tmp) {
if (i++ > 0) {
ZEND_PUTS(",");
}
ZEND_PUTS("[");
if (string_key) {
ZEND_WRITE(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
} else {
zend_printf(ZEND_ULONG_FMT, num_key);
}
ZEND_PUTS("] => ");
zend_print_flat_zval_r(tmp);
} ZEND_HASH_FOREACH_END();
}
/* }}} */
ZEND_API int zend_make_printable_zval(zval *expr, zval *expr_copy) /* {{{ */
{
if (Z_TYPE_P(expr) == IS_STRING) {
return 0;
} else {
ZVAL_STR(expr_copy, zval_get_string_func(expr));
return 1;
}
}
/* }}} */
ZEND_API size_t zend_print_zval(zval *expr, int indent) /* {{{ */
{
zend_string *tmp_str;
zend_string *str = zval_get_tmp_string(expr, &tmp_str);
size_t len = ZSTR_LEN(str);
if (len != 0) {
zend_write(ZSTR_VAL(str), len);
}
zend_tmp_string_release(tmp_str);
return len;
}
/* }}} */
ZEND_API void zend_print_flat_zval_r(zval *expr) /* {{{ */
{
switch (Z_TYPE_P(expr)) {
case IS_ARRAY:
ZEND_PUTS("Array (");
if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
if (GC_IS_RECURSIVE(Z_ARRVAL_P(expr))) {
ZEND_PUTS(" *RECURSION*");
return;
}
GC_PROTECT_RECURSION(Z_ARRVAL_P(expr));
}
print_flat_hash(Z_ARRVAL_P(expr));
ZEND_PUTS(")");
if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
GC_UNPROTECT_RECURSION(Z_ARRVAL_P(expr));
}
break;
case IS_OBJECT:
{
HashTable *properties;
zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
zend_printf("%s Object (", ZSTR_VAL(class_name));
zend_string_release_ex(class_name, 0);
if (GC_IS_RECURSIVE(Z_COUNTED_P(expr))) {
ZEND_PUTS(" *RECURSION*");
return;
}
properties = Z_OBJPROP_P(expr);
if (properties) {
GC_PROTECT_RECURSION(Z_OBJ_P(expr));
print_flat_hash(properties);
GC_UNPROTECT_RECURSION(Z_OBJ_P(expr));
}
ZEND_PUTS(")");
break;
}
case IS_REFERENCE:
zend_print_flat_zval_r(Z_REFVAL_P(expr));
break;
default:
zend_print_zval(expr, 0);
break;
}
}
/* }}} */
static void zend_print_zval_r_to_buf(smart_str *buf, zval *expr, int indent) /* {{{ */
{
switch (Z_TYPE_P(expr)) {
case IS_ARRAY:
smart_str_appends(buf, "Array\n");
if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
if (GC_IS_RECURSIVE(Z_ARRVAL_P(expr))) {
smart_str_appends(buf, " *RECURSION*");
return;
}
GC_PROTECT_RECURSION(Z_ARRVAL_P(expr));
}
print_hash(buf, Z_ARRVAL_P(expr), indent, 0);
if (!(GC_FLAGS(Z_ARRVAL_P(expr)) & GC_IMMUTABLE)) {
GC_UNPROTECT_RECURSION(Z_ARRVAL_P(expr));
}
break;
case IS_OBJECT:
{
HashTable *properties;
zend_string *class_name = Z_OBJ_HANDLER_P(expr, get_class_name)(Z_OBJ_P(expr));
smart_str_appends(buf, ZSTR_VAL(class_name));
zend_string_release_ex(class_name, 0);
smart_str_appends(buf, " Object\n");
if (GC_IS_RECURSIVE(Z_OBJ_P(expr))) {
smart_str_appends(buf, " *RECURSION*");
return;
}
if ((properties = zend_get_properties_for(expr, ZEND_PROP_PURPOSE_DEBUG)) == NULL) {
break;
}
GC_PROTECT_RECURSION(Z_OBJ_P(expr));
print_hash(buf, properties, indent, 1);
GC_UNPROTECT_RECURSION(Z_OBJ_P(expr));
zend_release_properties(properties);
break;
}
case IS_LONG:
smart_str_append_long(buf, Z_LVAL_P(expr));
break;
case IS_REFERENCE:
zend_print_zval_r_to_buf(buf, Z_REFVAL_P(expr), indent);
break;
case IS_STRING:
smart_str_append(buf, Z_STR_P(expr));
break;
default:
{
zend_string *str = zval_get_string_func(expr);
smart_str_append(buf, str);
zend_string_release_ex(str, 0);
}
break;
}
}
/* }}} */
ZEND_API zend_string *zend_print_zval_r_to_str(zval *expr, int indent) /* {{{ */
{
smart_str buf = {0};
zend_print_zval_r_to_buf(&buf, expr, indent);
smart_str_0(&buf);
return buf.s;
}
/* }}} */
ZEND_API void zend_print_zval_r(zval *expr, int indent) /* {{{ */
{
zend_string *str = zend_print_zval_r_to_str(expr, indent);
zend_write(ZSTR_VAL(str), ZSTR_LEN(str));
zend_string_release_ex(str, 0);
}
/* }}} */
static FILE *zend_fopen_wrapper(const char *filename, zend_string **opened_path) /* {{{ */
{
if (opened_path) {
*opened_path = zend_string_init(filename, strlen(filename), 0);
}
return fopen(filename, "rb");
}
/* }}} */
#ifdef ZTS
static zend_bool short_tags_default = 1;
static uint32_t compiler_options_default = ZEND_COMPILE_DEFAULT;
#else
# define short_tags_default 1
# define compiler_options_default ZEND_COMPILE_DEFAULT
#endif
static void zend_set_default_compile_time_values(void) /* {{{ */
{
/* default compile-time values */
CG(short_tags) = short_tags_default;
CG(compiler_options) = compiler_options_default;
}
/* }}} */
#ifdef ZEND_WIN32
static void zend_get_windows_version_info(OSVERSIONINFOEX *osvi) /* {{{ */
{
ZeroMemory(osvi, sizeof(OSVERSIONINFOEX));
osvi->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
if(!GetVersionEx((OSVERSIONINFO *) osvi)) {
ZEND_ASSERT(0); /* Should not happen as sizeof is used. */
}
}
/* }}} */
#endif
static void zend_init_exception_op(void) /* {{{ */
{
memset(EG(exception_op), 0, sizeof(EG(exception_op)));
EG(exception_op)[0].opcode = ZEND_HANDLE_EXCEPTION;
ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op));
EG(exception_op)[1].opcode = ZEND_HANDLE_EXCEPTION;
ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+1);
EG(exception_op)[2].opcode = ZEND_HANDLE_EXCEPTION;
ZEND_VM_SET_OPCODE_HANDLER(EG(exception_op)+2);
}
/* }}} */
static void zend_init_call_trampoline_op(void) /* {{{ */
{
memset(&EG(call_trampoline_op), 0, sizeof(EG(call_trampoline_op)));
EG(call_trampoline_op).opcode = ZEND_CALL_TRAMPOLINE;
ZEND_VM_SET_OPCODE_HANDLER(&EG(call_trampoline_op));
}
/* }}} */
static void auto_global_dtor(zval *zv) /* {{{ */
{
free(Z_PTR_P(zv));
}
/* }}} */
#ifdef ZTS
static void function_copy_ctor(zval *zv) /* {{{ */
{
zend_function *old_func = Z_FUNC_P(zv);
zend_function *func;
if (old_func->type == ZEND_USER_FUNCTION) {
ZEND_ASSERT(old_func->op_array.fn_flags & ZEND_ACC_IMMUTABLE);
return;
}
func = pemalloc(sizeof(zend_internal_function), 1);
Z_FUNC_P(zv) = func;
memcpy(func, old_func, sizeof(zend_internal_function));
function_add_ref(func);
if ((old_func->common.fn_flags & (ZEND_ACC_HAS_RETURN_TYPE|ZEND_ACC_HAS_TYPE_HINTS))
&& old_func->common.arg_info) {
uint32_t i;
uint32_t num_args = old_func->common.num_args + 1;
zend_arg_info *arg_info = old_func->common.arg_info - 1;
zend_arg_info *new_arg_info;
if (old_func->common.fn_flags & ZEND_ACC_VARIADIC) {
num_args++;
}
new_arg_info = pemalloc(sizeof(zend_arg_info) * num_args, 1);
memcpy(new_arg_info, arg_info, sizeof(zend_arg_info) * num_args);
for (i = 0 ; i < num_args; i++) {
if (ZEND_TYPE_IS_CLASS(arg_info[i].type)) {
zend_string *name = zend_string_dup(ZEND_TYPE_NAME(arg_info[i].type), 1);
new_arg_info[i].type =
ZEND_TYPE_ENCODE_CLASS(
name, ZEND_TYPE_ALLOW_NULL(arg_info[i].type));
}
}
func->common.arg_info = new_arg_info + 1;
}
}
/* }}} */
static void auto_global_copy_ctor(zval *zv) /* {{{ */
{
zend_auto_global *old_ag = (zend_auto_global *) Z_PTR_P(zv);
zend_auto_global *new_ag = pemalloc(sizeof(zend_auto_global), 1);
new_ag->name = old_ag->name;
new_ag->auto_global_callback = old_ag->auto_global_callback;
new_ag->jit = old_ag->jit;
Z_PTR_P(zv) = new_ag;
}
/* }}} */
static void compiler_globals_ctor(zend_compiler_globals *compiler_globals) /* {{{ */
{
compiler_globals->compiled_filename = NULL;
compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
zend_hash_init_ex(compiler_globals->function_table, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
zend_hash_copy(compiler_globals->function_table, global_function_table, function_copy_ctor);
compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
zend_hash_init_ex(compiler_globals->class_table, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
zend_hash_copy(compiler_globals->class_table, global_class_table, zend_class_add_ref);
zend_set_default_compile_time_values();
compiler_globals->auto_globals = (HashTable *) malloc(sizeof(HashTable));
zend_hash_init_ex(compiler_globals->auto_globals, 8, NULL, auto_global_dtor, 1, 0);
zend_hash_copy(compiler_globals->auto_globals, global_auto_globals_table, auto_global_copy_ctor);
compiler_globals->script_encoding_list = NULL;
#if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
/* Map region is going to be created and resized at run-time. */
compiler_globals->map_ptr_base = NULL;
compiler_globals->map_ptr_size = 0;
compiler_globals->map_ptr_last = global_map_ptr_last;
if (compiler_globals->map_ptr_last) {
/* Allocate map_ptr table */
compiler_globals->map_ptr_size = ZEND_MM_ALIGNED_SIZE_EX(compiler_globals->map_ptr_last, 4096);
compiler_globals->map_ptr_base = pemalloc(compiler_globals->map_ptr_size * sizeof(void*), 1);
memset(compiler_globals->map_ptr_base, 0, compiler_globals->map_ptr_last * sizeof(void*));
}
#else
# error "Unknown ZEND_MAP_PTR_KIND"
#endif
}
/* }}} */
static void compiler_globals_dtor(zend_compiler_globals *compiler_globals) /* {{{ */
{
if (compiler_globals->function_table != GLOBAL_FUNCTION_TABLE) {
zend_hash_destroy(compiler_globals->function_table);
free(compiler_globals->function_table);
}
if (compiler_globals->class_table != GLOBAL_CLASS_TABLE) {
zend_hash_destroy(compiler_globals->class_table);
free(compiler_globals->class_table);
}
if (compiler_globals->auto_globals != GLOBAL_AUTO_GLOBALS_TABLE) {
zend_hash_destroy(compiler_globals->auto_globals);
free(compiler_globals->auto_globals);
}
if (compiler_globals->script_encoding_list) {
pefree((char*)compiler_globals->script_encoding_list, 1);
}
if (compiler_globals->map_ptr_base) {
free(compiler_globals->map_ptr_base);
compiler_globals->map_ptr_base = NULL;
compiler_globals->map_ptr_size = 0;
}
}
/* }}} */
static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
{
ZEND_TSRMLS_CACHE_UPDATE();
zend_startup_constants();
zend_copy_constants(executor_globals->zend_constants, GLOBAL_CONSTANTS_TABLE);
zend_init_rsrc_plist();
zend_init_exception_op();
zend_init_call_trampoline_op();
memset(&executor_globals->trampoline, 0, sizeof(zend_op_array));
executor_globals->lambda_count = 0;
ZVAL_UNDEF(&executor_globals->user_error_handler);
ZVAL_UNDEF(&executor_globals->user_exception_handler);
executor_globals->in_autoload = NULL;
executor_globals->current_execute_data = NULL;
executor_globals->current_module = NULL;
executor_globals->exit_status = 0;
#if XPFPA_HAVE_CW
executor_globals->saved_fpu_cw = 0;
#endif
executor_globals->saved_fpu_cw_ptr = NULL;
executor_globals->active = 0;
executor_globals->bailout = NULL;
executor_globals->error_handling = EH_NORMAL;
executor_globals->exception_class = NULL;
executor_globals->exception = NULL;
executor_globals->objects_store.object_buckets = NULL;
#ifdef ZEND_WIN32
zend_get_windows_version_info(&executor_globals->windows_version_info);
#endif
executor_globals->flags = EG_FLAGS_INITIAL;
}
/* }}} */
static void executor_globals_dtor(zend_executor_globals *executor_globals) /* {{{ */
{
zend_ini_dtor(executor_globals->ini_directives);
if (&executor_globals->persistent_list != global_persistent_list) {
zend_destroy_rsrc_list(&executor_globals->persistent_list);
}
if (executor_globals->zend_constants != GLOBAL_CONSTANTS_TABLE) {
zend_hash_destroy(executor_globals->zend_constants);
free(executor_globals->zend_constants);
}
}
/* }}} */
static void zend_new_thread_end_handler(THREAD_T thread_id) /* {{{ */
{
if (zend_copy_ini_directives() == SUCCESS) {
zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP);
}
}
/* }}} */
#endif
#if defined(__FreeBSD__) || defined(__DragonFly__)
/* FreeBSD and DragonFly floating point precision fix */
#include <floatingpoint.h>
#endif
static void ini_scanner_globals_ctor(zend_ini_scanner_globals *scanner_globals_p) /* {{{ */
{
memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
}
/* }}} */
static void php_scanner_globals_ctor(zend_php_scanner_globals *scanner_globals_p) /* {{{ */
{
memset(scanner_globals_p, 0, sizeof(*scanner_globals_p));
}
/* }}} */
static void module_destructor_zval(zval *zv) /* {{{ */
{
zend_module_entry *module = (zend_module_entry*)Z_PTR_P(zv);
module_destructor(module);
free(module);
}
/* }}} */
static zend_bool php_auto_globals_create_globals(zend_string *name) /* {{{ */
{
zval globals;
/* IS_ARRAY, but with ref-counter 1 and not IS_TYPE_REFCOUNTED */
ZVAL_ARR(&globals, &EG(symbol_table));
Z_TYPE_FLAGS_P(&globals) = 0;
ZVAL_NEW_REF(&globals, &globals);
zend_hash_update(&EG(symbol_table), name, &globals);
return 0;
}
/* }}} */
int zend_startup(zend_utility_functions *utility_functions, char **extensions) /* {{{ */
{
#ifdef ZTS
zend_compiler_globals *compiler_globals;
zend_executor_globals *executor_globals;
extern ZEND_API ts_rsrc_id ini_scanner_globals_id;
extern ZEND_API ts_rsrc_id language_scanner_globals_id;
ZEND_TSRMLS_CACHE_UPDATE();
#else
extern zend_ini_scanner_globals ini_scanner_globals;
extern zend_php_scanner_globals language_scanner_globals;
#endif
zend_cpu_startup();
#ifdef ZEND_WIN32
php_win32_cp_set_by_id(65001);
#endif
start_memory_manager();
virtual_cwd_startup(); /* Could use shutdown to free the main cwd but it would just slow it down for CGI */
#if defined(__FreeBSD__) || defined(__DragonFly__)
/* FreeBSD and DragonFly floating point precision fix */
fpsetmask(0);
#endif
zend_startup_strtod();
zend_startup_extensions_mechanism();
/* Set up utility functions and values */
zend_error_cb = utility_functions->error_function;
zend_printf = utility_functions->printf_function;
zend_write = (zend_write_func_t) utility_functions->write_function;
zend_fopen = utility_functions->fopen_function;
if (!zend_fopen) {
zend_fopen = zend_fopen_wrapper;
}
zend_stream_open_function = utility_functions->stream_open_function;
zend_message_dispatcher_p = utility_functions->message_handler;
zend_get_configuration_directive_p = utility_functions->get_configuration_directive;
zend_ticks_function = utility_functions->ticks_function;
zend_on_timeout = utility_functions->on_timeout;
zend_printf_to_smart_string = utility_functions->printf_to_smart_string_function;
zend_printf_to_smart_str = utility_functions->printf_to_smart_str_function;
zend_getenv = utility_functions->getenv_function;
zend_resolve_path = utility_functions->resolve_path_function;
zend_interrupt_function = NULL;
#if HAVE_DTRACE
/* build with dtrace support */
{
char *tmp = getenv("USE_ZEND_DTRACE");
if (tmp && zend_atoi(tmp, 0)) {
zend_dtrace_enabled = 1;
zend_compile_file = dtrace_compile_file;
zend_execute_ex = dtrace_execute_ex;
zend_execute_internal = dtrace_execute_internal;
} else {
zend_compile_file = compile_file;
zend_execute_ex = execute_ex;
zend_execute_internal = NULL;
}
}
#else
zend_compile_file = compile_file;
zend_execute_ex = execute_ex;
zend_execute_internal = NULL;
#endif /* HAVE_DTRACE */
zend_compile_string = compile_string;
zend_throw_exception_hook = NULL;
/* Set up the default garbage collection implementation. */
gc_collect_cycles = zend_gc_collect_cycles;
zend_vm_init();
/* set up version */
zend_version_info = strdup(ZEND_CORE_VERSION_INFO);
zend_version_info_length = sizeof(ZEND_CORE_VERSION_INFO) - 1;
GLOBAL_FUNCTION_TABLE = (HashTable *) malloc(sizeof(HashTable));
GLOBAL_CLASS_TABLE = (HashTable *) malloc(sizeof(HashTable));
GLOBAL_AUTO_GLOBALS_TABLE = (HashTable *) malloc(sizeof(HashTable));
GLOBAL_CONSTANTS_TABLE = (HashTable *) malloc(sizeof(HashTable));
zend_hash_init_ex(GLOBAL_FUNCTION_TABLE, 1024, NULL, ZEND_FUNCTION_DTOR, 1, 0);
zend_hash_init_ex(GLOBAL_CLASS_TABLE, 64, NULL, ZEND_CLASS_DTOR, 1, 0);
zend_hash_init_ex(GLOBAL_AUTO_GLOBALS_TABLE, 8, NULL, auto_global_dtor, 1, 0);
zend_hash_init_ex(GLOBAL_CONSTANTS_TABLE, 128, NULL, ZEND_CONSTANT_DTOR, 1, 0);
zend_hash_init_ex(&module_registry, 32, NULL, module_destructor_zval, 1, 0);
zend_init_rsrc_list_dtors();
#ifdef ZTS
ts_allocate_id(&compiler_globals_id, sizeof(zend_compiler_globals), (ts_allocate_ctor) compiler_globals_ctor, (ts_allocate_dtor) compiler_globals_dtor);
ts_allocate_id(&executor_globals_id, sizeof(zend_executor_globals), (ts_allocate_ctor) executor_globals_ctor, (ts_allocate_dtor) executor_globals_dtor);
ts_allocate_id(&language_scanner_globals_id, sizeof(zend_php_scanner_globals), (ts_allocate_ctor) php_scanner_globals_ctor, NULL);
ts_allocate_id(&ini_scanner_globals_id, sizeof(zend_ini_scanner_globals), (ts_allocate_ctor) ini_scanner_globals_ctor, NULL);
compiler_globals = ts_resource(compiler_globals_id);
executor_globals = ts_resource(executor_globals_id);
compiler_globals_dtor(compiler_globals);
compiler_globals->in_compilation = 0;
compiler_globals->function_table = (HashTable *) malloc(sizeof(HashTable));
compiler_globals->class_table = (HashTable *) malloc(sizeof(HashTable));
*compiler_globals->function_table = *GLOBAL_FUNCTION_TABLE;
*compiler_globals->class_table = *GLOBAL_CLASS_TABLE;
compiler_globals->auto_globals = GLOBAL_AUTO_GLOBALS_TABLE;
zend_hash_destroy(executor_globals->zend_constants);
*executor_globals->zend_constants = *GLOBAL_CONSTANTS_TABLE;
#else
ini_scanner_globals_ctor(&ini_scanner_globals);
php_scanner_globals_ctor(&language_scanner_globals);
zend_set_default_compile_time_values();
#ifdef ZEND_WIN32
zend_get_windows_version_info(&EG(windows_version_info));
#endif
# if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
/* Create a map region, used for indirect pointers from shared to
* process memory. It's allocatred once and never resized.
* All processes must map it into the same address space.
*/
CG(map_ptr_size) = 1024 * 1024; // TODO: initial size ???
CG(map_ptr_last) = 0;
CG(map_ptr_base) = pemalloc(CG(map_ptr_size) * sizeof(void*), 1);
# elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
/* Map region is going to be created and resized at run-time. */
CG(map_ptr_base) = NULL;
CG(map_ptr_size) = 0;
CG(map_ptr_last) = 0;
# else
# error "Unknown ZEND_MAP_PTR_KIND"
# endif
#endif
EG(error_reporting) = E_ALL & ~E_NOTICE;
zend_interned_strings_init();
zend_startup_builtin_functions();
zend_register_standard_constants();
zend_register_auto_global(zend_string_init_interned("GLOBALS", sizeof("GLOBALS") - 1, 1), 1, php_auto_globals_create_globals);
#ifndef ZTS
zend_init_rsrc_plist();
zend_init_exception_op();
zend_init_call_trampoline_op();
#endif
zend_ini_startup();
#ifdef ZEND_WIN32
/* Uses INI settings, so needs to be run after it. */
php_win32_cp_setup();
#endif
#ifdef ZTS
tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
tsrm_set_shutdown_handler(zend_interned_strings_dtor);
#endif
return SUCCESS;
}
/* }}} */
void zend_register_standard_ini_entries(void) /* {{{ */
{
int module_number = 0;
REGISTER_INI_ENTRIES();
}
/* }}} */
static void zend_resolve_property_types(void) /* {{{ */
{
zend_class_entry *ce;
zend_property_info *prop_info;
ZEND_HASH_FOREACH_PTR(CG(class_table), ce) {
if (UNEXPECTED(ce->type == ZEND_INTERNAL_CLASS && ZEND_CLASS_HAS_TYPE_HINTS(ce))) {
ZEND_HASH_FOREACH_PTR(&ce->properties_info, prop_info) {
if (ZEND_TYPE_IS_NAME(prop_info->type)) {
zend_string *type_name = ZEND_TYPE_NAME(prop_info->type);
zend_string *lc_type_name = zend_string_tolower(type_name);
zend_class_entry *prop_ce = zend_hash_find_ptr(CG(class_table), lc_type_name);
ZEND_ASSERT(prop_ce && prop_ce->type == ZEND_INTERNAL_CLASS);
prop_info->type = ZEND_TYPE_ENCODE_CE(prop_ce, ZEND_TYPE_ALLOW_NULL(prop_info->type));
zend_string_release(lc_type_name);
zend_string_release(type_name);
}
} ZEND_HASH_FOREACH_END();
}
} ZEND_HASH_FOREACH_END();
}
/* }}} */
/* Unlink the global (r/o) copies of the class, function and constant tables,
* and use a fresh r/w copy for the startup thread
*/
int zend_post_startup(void) /* {{{ */
{
#ifdef ZTS
zend_encoding **script_encoding_list;
zend_compiler_globals *compiler_globals = ts_resource(compiler_globals_id);
zend_executor_globals *executor_globals = ts_resource(executor_globals_id);
#endif
if (zend_post_startup_cb) {
int (*cb)(void) = zend_post_startup_cb;
zend_post_startup_cb = NULL;
if (cb() != SUCCESS) {
return FAILURE;
}
}
zend_resolve_property_types();
#ifdef ZTS