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php-src/Zend/zend.c
Nikita Popov bd1977282c Use zend_type inside type lists 
Instead of having a completely independent encoding for type list
entries. This is going to use more memory, but I'm not particularly
concerned about that, as type unions that contain multiple classes
should be uncommon. On the other hand, this allows us to treat
top-level types and types inside lists mostly the same.

A new ZEND_TYPE_FOREACH macros allows to transparently treat list
and non-list types the same way. I'm not using it everywhere it could be
used for now, just the places that seemed most obvious.

Of course, this will make any future type system changes much simpler,
as it will not be necessary to duplicate all logic two times.
2020-01-17 09:37:54 +01:00

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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 |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@php.net> |
| Zeev Suraski <zeev@php.net> |
+----------------------------------------------------------------------+
*/
#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;
ZEND_API size_t compiler_globals_offset;
ZEND_API size_t executor_globals_offset;
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;
} 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
STD_ZEND_INI_BOOLEAN("zend.exception_ignore_args", "0", ZEND_INI_ALL, OnUpdateBool, exception_ignore_args, zend_executor_globals, executor_globals)
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;
CG(rtd_key_counter) = 0;
}
/* }}} */
#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_HAS_LIST(arg_info[i].type)) {
zend_type_list *old_list = ZEND_TYPE_LIST(arg_info[i].type);
zend_type_list *new_list = pemalloc(ZEND_TYPE_LIST_SIZE(old_list->num_types), 1);
memcpy(new_list, old_list, ZEND_TYPE_LIST_SIZE(old_list->num_types));
ZEND_TYPE_SET_PTR(new_arg_info[i].type, new_list);
zend_type *list_type;
ZEND_TYPE_LIST_FOREACH(new_list, list_type) {
zend_string *name = zend_string_dup(ZEND_TYPE_NAME(*list_type), 1);
ZEND_TYPE_SET_PTR(*list_type, name);
} ZEND_TYPE_LIST_FOREACH_END();
} else if (ZEND_TYPE_HAS_NAME(arg_info[i].type)) {
zend_string *name = zend_string_dup(ZEND_TYPE_NAME(arg_info[i].type), 1);
ZEND_TYPE_SET_PTR(new_arg_info[i].type, name);
}
}
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. */
ZEND_MAP_PTR_SET_REAL_BASE(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 */
void *base;
compiler_globals->map_ptr_size = ZEND_MM_ALIGNED_SIZE_EX(compiler_globals->map_ptr_last, 4096);
base = pemalloc(compiler_globals->map_ptr_size * sizeof(void*), 1);
ZEND_MAP_PTR_SET_REAL_BASE(compiler_globals->map_ptr_base, base);
memset(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 (ZEND_MAP_PTR_REAL_BASE(compiler_globals->map_ptr_base)) {
free(ZEND_MAP_PTR_REAL_BASE(compiler_globals->map_ptr_base));
ZEND_MAP_PTR_SET_REAL_BASE(compiler_globals->map_ptr_base, NULL);
compiler_globals->map_ptr_size = 0;
}
}
/* }}} */
static void executor_globals_ctor(zend_executor_globals *executor_globals) /* {{{ */
{
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) /* {{{ */
{
#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;
#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_fast_id(&compiler_globals_id, &compiler_globals_offset, sizeof(zend_compiler_globals), (ts_allocate_ctor) compiler_globals_ctor, (ts_allocate_dtor) compiler_globals_dtor);
ts_allocate_fast_id(&executor_globals_id, &executor_globals_offset, sizeof(zend_executor_globals), (ts_allocate_ctor) executor_globals_ctor, (ts_allocate_dtor) executor_globals_dtor);
ts_allocate_fast_id(&language_scanner_globals_id, &language_scanner_globals_offset, sizeof(zend_php_scanner_globals), (ts_allocate_ctor) php_scanner_globals_ctor, NULL);
ts_allocate_fast_id(&ini_scanner_globals_id, &ini_scanner_globals_offset, 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;
ZEND_MAP_PTR_SET_REAL_BASE(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. */
ZEND_MAP_PTR_SET_REAL_BASE(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 zend_class_entry *resolve_type_name(zend_string *type_name) {
zend_string *lc_type_name = zend_string_tolower(type_name);
zend_class_entry *ce = zend_hash_find_ptr(CG(class_table), lc_type_name);
ZEND_ASSERT(ce && ce->type == ZEND_INTERNAL_CLASS);
zend_string_release(lc_type_name);
return ce;
}
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 (ce->type != ZEND_INTERNAL_CLASS) {
continue;
}
if (UNEXPECTED(ZEND_CLASS_HAS_TYPE_HINTS(ce))) {
ZEND_HASH_FOREACH_PTR(&ce->properties_info, prop_info) {
zend_type *single_type;
ZEND_TYPE_FOREACH(prop_info->type, single_type) {
if (ZEND_TYPE_HAS_NAME(*single_type)) {
zend_string *type_name = ZEND_TYPE_NAME(*single_type);
ZEND_TYPE_SET_CE(*single_type, resolve_type_name(type_name));
zend_string_release(type_name);
}
} ZEND_TYPE_FOREACH_END();
} ZEND_HASH_FOREACH_END();
}
ce->ce_flags |= ZEND_ACC_PROPERTY_TYPES_RESOLVED;
} 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
zend_resolve_property_types();
if (zend_post_startup_cb) {
int (*cb)(void) = zend_post_startup_cb;
zend_post_startup_cb = NULL;
if (cb() != SUCCESS) {
return FAILURE;
}
}
#ifdef ZTS
*GLOBAL_FUNCTION_TABLE = *compiler_globals->function_table;
*GLOBAL_CLASS_TABLE = *compiler_globals->class_table;
*GLOBAL_CONSTANTS_TABLE = *executor_globals->zend_constants;
global_map_ptr_last = compiler_globals->map_ptr_last;
short_tags_default = CG(short_tags);
compiler_options_default = CG(compiler_options);
zend_destroy_rsrc_list(&EG(persistent_list));
free(compiler_globals->function_table);
compiler_globals->function_table = NULL;
free(compiler_globals->class_table);
compiler_globals->class_table = NULL;
if (ZEND_MAP_PTR_REAL_BASE(compiler_globals->map_ptr_base)) {
free(ZEND_MAP_PTR_REAL_BASE(compiler_globals->map_ptr_base));
}
ZEND_MAP_PTR_SET_REAL_BASE(compiler_globals->map_ptr_base, NULL);
if ((script_encoding_list = (zend_encoding **)compiler_globals->script_encoding_list)) {
compiler_globals_ctor(compiler_globals);
compiler_globals->script_encoding_list = (const zend_encoding **)script_encoding_list;
} else {
compiler_globals_ctor(compiler_globals);
}
free(EG(zend_constants));
EG(zend_constants) = NULL;
executor_globals_ctor(executor_globals);
global_persistent_list = &EG(persistent_list);
zend_copy_ini_directives();
#else
global_map_ptr_last = CG(map_ptr_last);
#endif
return SUCCESS;
}
/* }}} */
void zend_shutdown(void) /* {{{ */
{
zend_vm_dtor();
zend_destroy_rsrc_list(&EG(persistent_list));
zend_destroy_modules();
virtual_cwd_deactivate();
virtual_cwd_shutdown();
zend_hash_destroy(GLOBAL_FUNCTION_TABLE);
zend_hash_destroy(GLOBAL_CLASS_TABLE);
zend_hash_destroy(GLOBAL_AUTO_GLOBALS_TABLE);
free(GLOBAL_AUTO_GLOBALS_TABLE);
zend_shutdown_extensions();
free(zend_version_info);
free(GLOBAL_FUNCTION_TABLE);
free(GLOBAL_CLASS_TABLE);
zend_hash_destroy(GLOBAL_CONSTANTS_TABLE);
free(GLOBAL_CONSTANTS_TABLE);
zend_shutdown_strtod();
#ifdef ZTS
GLOBAL_FUNCTION_TABLE = NULL;
GLOBAL_CLASS_TABLE = NULL;
GLOBAL_AUTO_GLOBALS_TABLE = NULL;
GLOBAL_CONSTANTS_TABLE = NULL;
ts_free_id(executor_globals_id);
ts_free_id(compiler_globals_id);
#else
if (ZEND_MAP_PTR_REAL_BASE(CG(map_ptr_base))) {
free(ZEND_MAP_PTR_REAL_BASE(CG(map_ptr_base)));
ZEND_MAP_PTR_SET_REAL_BASE(CG(map_ptr_base), NULL);
CG(map_ptr_size) = 0;
}
#endif
zend_destroy_rsrc_list_dtors();
}
/* }}} */
void zend_set_utility_values(zend_utility_values *utility_values) /* {{{ */
{
zend_uv = *utility_values;
}
/* }}} */
/* this should be compatible with the standard zenderror */
ZEND_COLD void zenderror(const char *error) /* {{{ */
{
CG(parse_error) = 0;
if (EG(exception)) {
/* An exception was thrown in the lexer, don't throw another in the parser. */
return;
}
zend_throw_exception(zend_ce_parse_error, error, 0);
}
/* }}} */
BEGIN_EXTERN_C()
ZEND_API ZEND_COLD ZEND_NORETURN void _zend_bailout(const char *filename, uint32_t lineno) /* {{{ */
{
if (!EG(bailout)) {
zend_output_debug_string(1, "%s(%d) : Bailed out without a bailout address!", filename, lineno);
exit(-1);
}
gc_protect(1);
CG(unclean_shutdown) = 1;
CG(active_class_entry) = NULL;
CG(in_compilation) = 0;
EG(current_execute_data) = NULL;
LONGJMP(*EG(bailout), FAILURE);
}
/* }}} */
END_EXTERN_C()
ZEND_API void zend_append_version_info(const zend_extension *extension) /* {{{ */
{
char *new_info;
uint32_t new_info_length;
new_info_length = (uint32_t)(sizeof(" with v, , by \n")
+ strlen(extension->name)
+ strlen(extension->version)
+ strlen(extension->copyright)
+ strlen(extension->author));
new_info = (char *) malloc(new_info_length + 1);
snprintf(new_info, new_info_length, " with %s v%s, %s, by %s\n", extension->name, extension->version, extension->copyright, extension->author);
zend_version_info = (char *) realloc(zend_version_info, zend_version_info_length+new_info_length + 1);
strncat(zend_version_info, new_info, new_info_length);
zend_version_info_length += new_info_length;
free(new_info);
}
/* }}} */
ZEND_API const char *get_zend_version(void) /* {{{ */
{
return zend_version_info;
}
/* }}} */
ZEND_API void zend_activate(void) /* {{{ */
{
#ifdef ZTS
virtual_cwd_activate();
#endif
gc_reset();
init_compiler();
init_executor();
startup_scanner();
if (CG(map_ptr_last)) {
memset(ZEND_MAP_PTR_REAL_BASE(CG(map_ptr_base)), 0, CG(map_ptr_last) * sizeof(void*));
}
}
/* }}} */
void zend_call_destructors(void) /* {{{ */
{
zend_try {
shutdown_destructors();
} zend_end_try();
}
/* }}} */
ZEND_API void zend_deactivate(void) /* {{{ */
{
/* we're no longer executing anything */
EG(current_execute_data) = NULL;
zend_try {
shutdown_scanner();
} zend_end_try();
/* shutdown_executor() takes care of its own bailout handling */
shutdown_executor();
zend_try {
zend_ini_deactivate();
} zend_end_try();
zend_try {
shutdown_compiler();
} zend_end_try();
zend_destroy_rsrc_list(&EG(regular_list));
#if GC_BENCH
fprintf(stderr, "GC Statistics\n");
fprintf(stderr, "-------------\n");
fprintf(stderr, "Runs: %d\n", GC_G(gc_runs));
fprintf(stderr, "Collected: %d\n", GC_G(collected));
fprintf(stderr, "Root buffer length: %d\n", GC_G(root_buf_length));
fprintf(stderr, "Root buffer peak: %d\n\n", GC_G(root_buf_peak));
fprintf(stderr, " Possible Remove from Marked\n");
fprintf(stderr, " Root Buffered buffer grey\n");
fprintf(stderr, " -------- -------- ----------- ------\n");
fprintf(stderr, "ZVAL %8d %8d %9d %8d\n", GC_G(zval_possible_root), GC_G(zval_buffered), GC_G(zval_remove_from_buffer), GC_G(zval_marked_grey));
#endif
}
/* }}} */
BEGIN_EXTERN_C()
ZEND_API void zend_message_dispatcher(zend_long message, const void *data) /* {{{ */
{
if (zend_message_dispatcher_p) {
zend_message_dispatcher_p(message, data);
}
}
/* }}} */
END_EXTERN_C()
ZEND_API zval *zend_get_configuration_directive(zend_string *name) /* {{{ */
{
if (zend_get_configuration_directive_p) {
return zend_get_configuration_directive_p(name);
} else {
return NULL;
}
}
/* }}} */
#define SAVE_STACK(stack) do { \
if (CG(stack).top) { \
memcpy(&stack, &CG(stack), sizeof(zend_stack)); \
CG(stack).top = CG(stack).max = 0; \
CG(stack).elements = NULL; \
} else { \
stack.top = 0; \
} \
} while (0)
#define RESTORE_STACK(stack) do { \
if (stack.top) { \
zend_stack_destroy(&CG(stack)); \
memcpy(&CG(stack), &stack, sizeof(zend_stack)); \
} \
} while (0)
static ZEND_COLD void zend_error_va_list(
int orig_type, const char *error_filename, uint32_t error_lineno,
const char *format, va_list args)
{
va_list usr_copy;
zval params[4];
zval retval;
zval orig_user_error_handler;
zend_bool in_compilation;
zend_class_entry *saved_class_entry;
zend_stack loop_var_stack;
zend_stack delayed_oplines_stack;
zend_class_entry *orig_fake_scope;
int type = orig_type & E_ALL;
/* Report about uncaught exception in case of fatal errors */
if (EG(exception)) {
zend_execute_data *ex;
const zend_op *opline;
switch (type) {
case E_CORE_ERROR:
case E_ERROR:
case E_RECOVERABLE_ERROR:
case E_PARSE:
case E_COMPILE_ERROR:
case E_USER_ERROR:
ex = EG(current_execute_data);
opline = NULL;
while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
ex = ex->prev_execute_data;
}
if (ex && ex->opline->opcode == ZEND_HANDLE_EXCEPTION &&
EG(opline_before_exception)) {
opline = EG(opline_before_exception);
}
zend_exception_error(EG(exception), E_WARNING);
EG(exception) = NULL;
if (opline) {
ex->opline = opline;
}
break;
default:
break;
}
}
#ifdef HAVE_DTRACE
if (DTRACE_ERROR_ENABLED()) {
char *dtrace_error_buffer;
zend_vspprintf(&dtrace_error_buffer, 0, format, args);
DTRACE_ERROR(dtrace_error_buffer, (char *)error_filename, error_lineno);
efree(dtrace_error_buffer);
}
#endif /* HAVE_DTRACE */
/* if we don't have a user defined error handler */
if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF
|| !(EG(user_error_handler_error_reporting) & type)
|| EG(error_handling) != EH_NORMAL) {
zend_error_cb(orig_type, error_filename, error_lineno, format, args);
} else switch (type) {
case E_ERROR:
case E_PARSE:
case E_CORE_ERROR:
case E_CORE_WARNING:
case E_COMPILE_ERROR:
case E_COMPILE_WARNING:
/* The error may not be safe to handle in user-space */
zend_error_cb(orig_type, error_filename, error_lineno, format, args);
break;
default:
/* Handle the error in user space */
va_copy(usr_copy, args);
ZVAL_STR(&params[1], zend_vstrpprintf(0, format, usr_copy));
va_end(usr_copy);
ZVAL_LONG(&params[0], type);
if (error_filename) {
ZVAL_STRING(&params[2], error_filename);
} else {
ZVAL_NULL(&params[2]);
}
ZVAL_LONG(&params[3], error_lineno);
ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
ZVAL_UNDEF(&EG(user_error_handler));
/* User error handler may include() additinal PHP files.
* If an error was generated during comilation PHP will compile
* such scripts recursively, but some CG() variables may be
* inconsistent. */
in_compilation = CG(in_compilation);
if (in_compilation) {
saved_class_entry = CG(active_class_entry);
CG(active_class_entry) = NULL;
SAVE_STACK(loop_var_stack);
SAVE_STACK(delayed_oplines_stack);
CG(in_compilation) = 0;
}
orig_fake_scope = EG(fake_scope);
EG(fake_scope) = NULL;
if (call_user_function(CG(function_table), NULL, &orig_user_error_handler, &retval, 4, params) == SUCCESS) {
if (Z_TYPE(retval) != IS_UNDEF) {
if (Z_TYPE(retval) == IS_FALSE) {
zend_error_cb(orig_type, error_filename, error_lineno, format, args);
}
zval_ptr_dtor(&retval);
}
} else if (!EG(exception)) {
/* The user error handler failed, use built-in error handler */
zend_error_cb(orig_type, error_filename, error_lineno, format, args);
}
EG(fake_scope) = orig_fake_scope;
if (in_compilation) {
CG(active_class_entry) = saved_class_entry;
RESTORE_STACK(loop_var_stack);
RESTORE_STACK(delayed_oplines_stack);
CG(in_compilation) = 1;
}
zval_ptr_dtor(&params[2]);
zval_ptr_dtor(&params[1]);
if (Z_TYPE(EG(user_error_handler)) == IS_UNDEF) {
ZVAL_COPY_VALUE(&EG(user_error_handler), &orig_user_error_handler);
} else {
zval_ptr_dtor(&orig_user_error_handler);
}
break;
}
if (type == E_PARSE) {
/* eval() errors do not affect exit_status */
if (!(EG(current_execute_data) &&
EG(current_execute_data)->func &&
ZEND_USER_CODE(EG(current_execute_data)->func->type) &&
EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
EG(current_execute_data)->opline->extended_value == ZEND_EVAL)) {
EG(exit_status) = 255;
}
}
}
/* }}} */
static ZEND_COLD void get_filename_lineno(int type, const char **filename, uint32_t *lineno) {
/* Obtain relevant filename and lineno */
switch (type) {
case E_CORE_ERROR:
case E_CORE_WARNING:
*filename = NULL;
*lineno = 0;
break;
case E_PARSE:
case E_COMPILE_ERROR:
case E_COMPILE_WARNING:
case E_ERROR:
case E_NOTICE:
case E_STRICT:
case E_DEPRECATED:
case E_WARNING:
case E_USER_ERROR:
case E_USER_WARNING:
case E_USER_NOTICE:
case E_USER_DEPRECATED:
case E_RECOVERABLE_ERROR:
if (zend_is_compiling()) {
*filename = ZSTR_VAL(zend_get_compiled_filename());
*lineno = zend_get_compiled_lineno();
} else if (zend_is_executing()) {
*filename = zend_get_executed_filename();
if ((*filename)[0] == '[') { /* [no active file] */
*filename = NULL;
*lineno = 0;
} else {
*lineno = zend_get_executed_lineno();
}
} else {
*filename = NULL;
*lineno = 0;
}
break;
default:
*filename = NULL;
*lineno = 0;
break;
}
if (!*filename) {
*filename = "Unknown";
}
}
ZEND_API ZEND_COLD void zend_error_at(
int type, const char *filename, uint32_t lineno, const char *format, ...) {
va_list args;
if (!filename) {
uint32_t dummy_lineno;
get_filename_lineno(type, &filename, &dummy_lineno);
}
va_start(args, format);
zend_error_va_list(type, filename, lineno, format, args);
va_end(args);
}
ZEND_API ZEND_COLD void zend_error(int type, const char *format, ...) {
const char *filename;
uint32_t lineno;
va_list args;
get_filename_lineno(type, &filename, &lineno);
va_start(args, format);
zend_error_va_list(type, filename, lineno, format, args);
va_end(args);
}
ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_at_noreturn(
int type, const char *filename, uint32_t lineno, const char *format, ...)
{
va_list args;
if (!filename) {
uint32_t dummy_lineno;
get_filename_lineno(type, &filename, &dummy_lineno);
}
va_start(args, format);
zend_error_va_list(type, filename, lineno, format, args);
va_end(args);
/* Should never reach this. */
abort();
}
/* }}} */
ZEND_API ZEND_COLD ZEND_NORETURN void zend_error_noreturn(int type, const char *format, ...)
{
const char *filename;
uint32_t lineno;
va_list args;
get_filename_lineno(type, &filename, &lineno);
va_start(args, format);
zend_error_va_list(type, filename, lineno, format, args);
va_end(args);
/* Should never reach this. */
abort();
}
/* }}} */
ZEND_API ZEND_COLD void zend_throw_error(zend_class_entry *exception_ce, const char *format, ...) /* {{{ */
{
va_list va;
char *message = NULL;
if (exception_ce) {
if (!instanceof_function(exception_ce, zend_ce_error)) {
zend_error(E_NOTICE, "Error exceptions must be derived from Error");
exception_ce = zend_ce_error;
}
} else {
exception_ce = zend_ce_error;
}
/* Marker used to disable exception generation during preloading. */
if (EG(exception) == (void*)(uintptr_t)-1) {
return;
}
va_start(va, format);
zend_vspprintf(&message, 0, format, va);
//TODO: we can't convert compile-time errors to exceptions yet???
if (EG(current_execute_data) && !CG(in_compilation)) {
zend_throw_exception(exception_ce, message, 0);
} else {
zend_error(E_ERROR, "%s", message);
}
efree(message);
va_end(va);
}
/* }}} */
ZEND_API ZEND_COLD void zend_type_error(const char *format, ...) /* {{{ */
{
va_list va;
char *message = NULL;
va_start(va, format);
zend_vspprintf(&message, 0, format, va);
zend_throw_exception(zend_ce_type_error, message, 0);
efree(message);
va_end(va);
} /* }}} */
ZEND_API ZEND_COLD void zend_argument_count_error(const char *format, ...) /* {{{ */
{
va_list va;
char *message = NULL;
va_start(va, format);
zend_vspprintf(&message, 0, format, va);
zend_throw_exception(zend_ce_argument_count_error, message, 0);
efree(message);
va_end(va);
} /* }}} */
ZEND_API ZEND_COLD void zend_value_error(const char *format, ...) /* {{{ */
{
va_list va;
char *message = NULL;
va_start(va, format);
zend_vspprintf(&message, 0, format, va);
zend_throw_exception(zend_ce_value_error, message, 0);
efree(message);
va_end(va);
} /* }}} */
ZEND_API ZEND_COLD void zend_output_debug_string(zend_bool trigger_break, const char *format, ...) /* {{{ */
{
#if ZEND_DEBUG
va_list args;
va_start(args, format);
# ifdef ZEND_WIN32
{
char output_buf[1024];
vsnprintf(output_buf, 1024, format, args);
OutputDebugString(output_buf);
OutputDebugString("\n");
if (trigger_break && IsDebuggerPresent()) {
DebugBreak();
}
}
# else
vfprintf(stderr, format, args);
fprintf(stderr, "\n");
# endif
va_end(args);
#endif
}
/* }}} */
ZEND_API ZEND_COLD void zend_user_exception_handler(void) /* {{{ */
{
zval orig_user_exception_handler;
zval params[1], retval2;
zend_object *old_exception;
old_exception = EG(exception);
EG(exception) = NULL;
ZVAL_OBJ(&params[0], old_exception);
ZVAL_COPY_VALUE(&orig_user_exception_handler, &EG(user_exception_handler));
if (call_user_function(CG(function_table), NULL, &orig_user_exception_handler, &retval2, 1, params) == SUCCESS) {
zval_ptr_dtor(&retval2);
if (EG(exception)) {
OBJ_RELEASE(EG(exception));
EG(exception) = NULL;
}
OBJ_RELEASE(old_exception);
} else {
EG(exception) = old_exception;
}
} /* }}} */
ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...) /* {{{ */
{
va_list files;
int i;
zend_file_handle *file_handle;
zend_op_array *op_array;
int ret = SUCCESS;
va_start(files, file_count);
for (i = 0; i < file_count && ret != FAILURE; i++) {
file_handle = va_arg(files, zend_file_handle *);
if (!file_handle) {
continue;
}
op_array = zend_compile_file(file_handle, type);
if (file_handle->opened_path) {
zend_hash_add_empty_element(&EG(included_files), file_handle->opened_path);
}
zend_destroy_file_handle(file_handle);
if (op_array) {
zend_execute(op_array, retval);
zend_exception_restore();
if (UNEXPECTED(EG(exception))) {
if (Z_TYPE(EG(user_exception_handler)) != IS_UNDEF) {
zend_user_exception_handler();
}
if (EG(exception)) {
zend_exception_error(EG(exception), E_ERROR);
ret = FAILURE;
}
}
destroy_op_array(op_array);
efree_size(op_array, sizeof(zend_op_array));
} else if (type==ZEND_REQUIRE) {
ret = FAILURE;
}
}
va_end(files);
return ret;
}
/* }}} */
#define COMPILED_STRING_DESCRIPTION_FORMAT "%s(%d) : %s"
ZEND_API char *zend_make_compiled_string_description(const char *name) /* {{{ */
{
const char *cur_filename;
int cur_lineno;
char *compiled_string_description;
if (zend_is_compiling()) {
cur_filename = ZSTR_VAL(zend_get_compiled_filename());
cur_lineno = zend_get_compiled_lineno();
} else if (zend_is_executing()) {
cur_filename = zend_get_executed_filename();
cur_lineno = zend_get_executed_lineno();
} else {
cur_filename = "Unknown";
cur_lineno = 0;
}
zend_spprintf(&compiled_string_description, 0, COMPILED_STRING_DESCRIPTION_FORMAT, cur_filename, cur_lineno, name);
return compiled_string_description;
}
/* }}} */
void free_estring(char **str_p) /* {{{ */
{
efree(*str_p);
}
/* }}} */
ZEND_API void zend_map_ptr_reset(void)
{
CG(map_ptr_last) = global_map_ptr_last;
}
ZEND_API void *zend_map_ptr_new(void)
{
void **ptr;
if (CG(map_ptr_last) >= CG(map_ptr_size)) {
#if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
// TODO: error ???
ZEND_ASSERT(0);
#elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
/* Grow map_ptr table */
CG(map_ptr_size) = ZEND_MM_ALIGNED_SIZE_EX(CG(map_ptr_last) + 1, 4096);
ZEND_MAP_PTR_SET_REAL_BASE(CG(map_ptr_base), perealloc(ZEND_MAP_PTR_REAL_BASE(CG(map_ptr_base)), CG(map_ptr_size) * sizeof(void*), 1));
#else
# error "Unknown ZEND_MAP_PTR_KIND"
#endif
}
ptr = (void**)ZEND_MAP_PTR_REAL_BASE(CG(map_ptr_base)) + CG(map_ptr_last);
*ptr = NULL;
CG(map_ptr_last)++;
#if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
return ptr;
#elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
return ZEND_MAP_PTR_PTR2OFFSET(ptr);
#else
# error "Unknown ZEND_MAP_PTR_KIND"
#endif
}
ZEND_API void zend_map_ptr_extend(size_t last)
{
if (last > CG(map_ptr_last)) {
void **ptr;
if (last >= CG(map_ptr_size)) {
#if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR
/* This may never happen */
ZEND_ASSERT(0);
#elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET
/* Grow map_ptr table */
CG(map_ptr_size) = ZEND_MM_ALIGNED_SIZE_EX(last, 4096);
ZEND_MAP_PTR_SET_REAL_BASE(CG(map_ptr_base), perealloc(ZEND_MAP_PTR_REAL_BASE(CG(map_ptr_base)), CG(map_ptr_size) * sizeof(void*), 1));
#else
# error "Unknown ZEND_MAP_PTR_KIND"
#endif
}
ptr = (void**)ZEND_MAP_PTR_REAL_BASE(CG(map_ptr_base)) + CG(map_ptr_last);
memset(ptr, 0, (last - CG(map_ptr_last)) * sizeof(void*));
CG(map_ptr_last) = last;
}
}
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