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php-src/ext/opcache/zend_accelerator_module.c
Niels Dossche ee3f932390 Fix GH-11715: opcache.interned_strings_buffer either has no effect or opcache_get_status() / phpinfo() is wrong 
There are a couple of oddities.

1) The interned strings buffer comprises the whole hashtable
   datastructure.
   Therefore, it seems that the interned strings buffer size is the size of
   only said table. However, in the current code it also includes the size
   of the zend_accel_shared_globals.

2) ZCSG(interned_strings).end is computed starting from the accelerator
   globals struct itself. I would expect it to start from the part where
   the interned strings table starts.

3) When computing the used size, it is done using
   ZCSG(interned_strings).end - ZCSG(interned_strings).start. However,
   this does not include the uin32_t slots array because
   ZCSG(interned_strings).start pointers after that array.

This patch corrrects these 3 points.

Closes GH-11717.
2023-07-21 13:04:53 +02:00

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/*
+----------------------------------------------------------------------+
| Zend OPcache |
+----------------------------------------------------------------------+
| Copyright (c) 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: |
| https://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@php.net> |
| Zeev Suraski <zeev@php.net> |
| Stanislav Malyshev <stas@zend.com> |
| Dmitry Stogov <dmitry@php.net> |
+----------------------------------------------------------------------+
*/
#include <time.h>
#include "php.h"
#include "ZendAccelerator.h"
#include "zend_API.h"
#include "zend_shared_alloc.h"
#include "zend_accelerator_blacklist.h"
#include "php_ini.h"
#include "SAPI.h"
#include "zend_virtual_cwd.h"
#include "ext/standard/info.h"
#include "ext/standard/php_filestat.h"
#include "opcache_arginfo.h"
#if HAVE_JIT
#include "jit/zend_jit.h"
#endif
#define STRING_NOT_NULL(s) (NULL == (s)?"":s)
#define MIN_ACCEL_FILES 200
#define MAX_ACCEL_FILES 1000000
#define TOKENTOSTR(X) #X
static zif_handler orig_file_exists = NULL;
static zif_handler orig_is_file = NULL;
static zif_handler orig_is_readable = NULL;
static int validate_api_restriction(void)
{
if (ZCG(accel_directives).restrict_api && *ZCG(accel_directives).restrict_api) {
size_t len = strlen(ZCG(accel_directives).restrict_api);
if (!SG(request_info).path_translated ||
strlen(SG(request_info).path_translated) < len ||
memcmp(SG(request_info).path_translated, ZCG(accel_directives).restrict_api, len) != 0) {
zend_error(E_WARNING, ACCELERATOR_PRODUCT_NAME " API is restricted by \"restrict_api\" configuration directive");
return 0;
}
}
return 1;
}
static ZEND_INI_MH(OnUpdateMemoryConsumption)
{
zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
zend_long memsize = atoi(ZSTR_VAL(new_value));
/* sanity check we must use at least 8 MB */
if (memsize < 8) {
zend_accel_error(ACCEL_LOG_WARNING, "opcache.memory_consumption is set below the required 8MB.\n");
return FAILURE;
}
if (UNEXPECTED(memsize > ZEND_LONG_MAX / (1024 * 1024))) {
*p = ZEND_LONG_MAX;
} else {
*p = memsize * (1024 * 1024);
}
return SUCCESS;
}
static ZEND_INI_MH(OnUpdateMaxAcceleratedFiles)
{
zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
zend_long size = atoi(ZSTR_VAL(new_value));
/* sanity check we must use a value between MIN_ACCEL_FILES and MAX_ACCEL_FILES */
if (size < MIN_ACCEL_FILES) {
zend_accel_error(ACCEL_LOG_WARNING, "opcache.max_accelerated_files is set below the required minimum (%d).\n", MIN_ACCEL_FILES);
return FAILURE;
}
if (size > MAX_ACCEL_FILES) {
zend_accel_error(ACCEL_LOG_WARNING, "opcache.max_accelerated_files is set above the limit (%d).\n", MAX_ACCEL_FILES);
return FAILURE;
}
*p = size;
return SUCCESS;
}
static ZEND_INI_MH(OnUpdateMaxWastedPercentage)
{
double *p = (double *) ZEND_INI_GET_ADDR();
zend_long percentage = atoi(ZSTR_VAL(new_value));
if (percentage <= 0 || percentage > 50) {
zend_accel_error(ACCEL_LOG_WARNING, "opcache.max_wasted_percentage must be set between 1 and 50.\n");
return FAILURE;
}
*p = (double)percentage / 100.0;
return SUCCESS;
}
static ZEND_INI_MH(OnUpdateConsistencyChecks)
{
zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
zend_long consistency_checks = atoi(ZSTR_VAL(new_value));
if (consistency_checks != 0) {
zend_accel_error(ACCEL_LOG_WARNING, "opcache.consistency_checks is reset back to 0 because it does not work properly (see GH-8065, GH-10624).\n");
return FAILURE;
}
*p = 0;
return SUCCESS;
}
static ZEND_INI_MH(OnEnable)
{
if (stage == ZEND_INI_STAGE_STARTUP ||
stage == ZEND_INI_STAGE_SHUTDOWN ||
stage == ZEND_INI_STAGE_DEACTIVATE) {
return OnUpdateBool(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
} else {
/* It may be only temporary disabled */
bool *p = (bool *) ZEND_INI_GET_ADDR();
if (zend_ini_parse_bool(new_value)) {
zend_error(E_WARNING, ACCELERATOR_PRODUCT_NAME " can't be temporary enabled (it may be only disabled till the end of request)");
return FAILURE;
} else {
*p = 0;
ZCG(accelerator_enabled) = 0;
return SUCCESS;
}
}
}
static ZEND_INI_MH(OnUpdateFileCache)
{
if (new_value) {
if (!ZSTR_LEN(new_value)) {
new_value = NULL;
} else {
zend_stat_t buf;
if (!IS_ABSOLUTE_PATH(ZSTR_VAL(new_value), ZSTR_LEN(new_value)) ||
zend_stat(ZSTR_VAL(new_value), &buf) != 0 ||
!S_ISDIR(buf.st_mode) ||
#ifndef ZEND_WIN32
access(ZSTR_VAL(new_value), R_OK | W_OK | X_OK) != 0) {
#else
_access(ZSTR_VAL(new_value), 06) != 0) {
#endif
zend_accel_error(ACCEL_LOG_WARNING, "opcache.file_cache must be a full path of accessible directory.\n");
new_value = NULL;
}
}
}
OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
return SUCCESS;
}
#ifdef HAVE_JIT
static ZEND_INI_MH(OnUpdateJit)
{
if (zend_jit_config(new_value, stage) == SUCCESS) {
return OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
}
return FAILURE;
}
static ZEND_INI_MH(OnUpdateJitDebug)
{
zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
zend_long val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
if (zend_jit_debug_config(*p, val, stage) == SUCCESS) {
*p = val;
return SUCCESS;
}
return FAILURE;
}
static ZEND_INI_MH(OnUpdateCounter)
{
zend_long val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
if (val >= 0 && val < 256) {
zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
*p = val;
return SUCCESS;
}
zend_error(E_WARNING, "Invalid \"%s\" setting. Should be between 0 and 256", ZSTR_VAL(entry->name));
return FAILURE;
}
static ZEND_INI_MH(OnUpdateUnrollC)
{
zend_long val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
if (val > 0 && val < ZEND_JIT_TRACE_MAX_CALL_DEPTH) {
zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
*p = val;
return SUCCESS;
}
zend_error(E_WARNING, "Invalid \"%s\" setting. Should be between 1 and %d", ZSTR_VAL(entry->name),
ZEND_JIT_TRACE_MAX_CALL_DEPTH);
return FAILURE;
}
static ZEND_INI_MH(OnUpdateUnrollR)
{
zend_long val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
if (val >= 0 && val < ZEND_JIT_TRACE_MAX_RET_DEPTH) {
zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
*p = val;
return SUCCESS;
}
zend_error(E_WARNING, "Invalid \"%s\" setting. Should be between 0 and %d", ZSTR_VAL(entry->name),
ZEND_JIT_TRACE_MAX_RET_DEPTH);
return FAILURE;
}
static ZEND_INI_MH(OnUpdateUnrollL)
{
zend_long val = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
if (val > 0 && val < ZEND_JIT_TRACE_MAX_LOOPS_UNROLL) {
zend_long *p = (zend_long *) ZEND_INI_GET_ADDR();
*p = val;
return SUCCESS;
}
zend_error(E_WARNING, "Invalid \"%s\" setting. Should be between 1 and %d", ZSTR_VAL(entry->name),
ZEND_JIT_TRACE_MAX_LOOPS_UNROLL);
return FAILURE;
}
#endif
ZEND_INI_BEGIN()
STD_PHP_INI_BOOLEAN("opcache.enable" , "1", PHP_INI_ALL, OnEnable, enabled , zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.use_cwd" , "1", PHP_INI_SYSTEM, OnUpdateBool, accel_directives.use_cwd , zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.validate_timestamps", "1", PHP_INI_ALL , OnUpdateBool, accel_directives.validate_timestamps, zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.validate_permission", "0", PHP_INI_SYSTEM, OnUpdateBool, accel_directives.validate_permission, zend_accel_globals, accel_globals)
#ifndef ZEND_WIN32
STD_PHP_INI_BOOLEAN("opcache.validate_root" , "0", PHP_INI_SYSTEM, OnUpdateBool, accel_directives.validate_root , zend_accel_globals, accel_globals)
#endif
STD_PHP_INI_BOOLEAN("opcache.dups_fix" , "0", PHP_INI_ALL , OnUpdateBool, accel_directives.ignore_dups , zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.revalidate_path" , "0", PHP_INI_ALL , OnUpdateBool, accel_directives.revalidate_path , zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.log_verbosity_level" , "1" , PHP_INI_SYSTEM, OnUpdateLong, accel_directives.log_verbosity_level, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.memory_consumption" , "128" , PHP_INI_SYSTEM, OnUpdateMemoryConsumption, accel_directives.memory_consumption, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.interned_strings_buffer", "8" , PHP_INI_SYSTEM, OnUpdateLong, accel_directives.interned_strings_buffer, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.max_accelerated_files" , "10000", PHP_INI_SYSTEM, OnUpdateMaxAcceleratedFiles, accel_directives.max_accelerated_files, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.max_wasted_percentage" , "5" , PHP_INI_SYSTEM, OnUpdateMaxWastedPercentage, accel_directives.max_wasted_percentage, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.consistency_checks" , "0" , PHP_INI_ALL , OnUpdateConsistencyChecks, accel_directives.consistency_checks, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.force_restart_timeout" , "180" , PHP_INI_SYSTEM, OnUpdateLong, accel_directives.force_restart_timeout, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.revalidate_freq" , "2" , PHP_INI_ALL , OnUpdateLong, accel_directives.revalidate_freq, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.file_update_protection", "2" , PHP_INI_ALL , OnUpdateLong, accel_directives.file_update_protection, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.preferred_memory_model", "" , PHP_INI_SYSTEM, OnUpdateStringUnempty, accel_directives.memory_model, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.blacklist_filename" , "" , PHP_INI_SYSTEM, OnUpdateString, accel_directives.user_blacklist_filename, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.max_file_size" , "0" , PHP_INI_SYSTEM, OnUpdateLong, accel_directives.max_file_size, zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.protect_memory" , "0" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.protect_memory, zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.save_comments" , "1" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.save_comments, zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.record_warnings" , "0" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.record_warnings, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.optimization_level" , DEFAULT_OPTIMIZATION_LEVEL , PHP_INI_SYSTEM, OnUpdateLong, accel_directives.optimization_level, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.opt_debug_level" , "0" , PHP_INI_SYSTEM, OnUpdateLong, accel_directives.opt_debug_level, zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.enable_file_override" , "0" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.file_override_enabled, zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.enable_cli" , "0" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.enable_cli, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.error_log" , "" , PHP_INI_SYSTEM, OnUpdateString, accel_directives.error_log, zend_accel_globals, accel_globals)
STD_PHP_INI_ENTRY("opcache.restrict_api" , "" , PHP_INI_SYSTEM, OnUpdateString, accel_directives.restrict_api, zend_accel_globals, accel_globals)
#ifndef ZEND_WIN32
STD_PHP_INI_ENTRY("opcache.lockfile_path" , "/tmp" , PHP_INI_SYSTEM, OnUpdateString, accel_directives.lockfile_path, zend_accel_globals, accel_globals)
#else
STD_PHP_INI_ENTRY("opcache.mmap_base", NULL, PHP_INI_SYSTEM, OnUpdateString, accel_directives.mmap_base, zend_accel_globals, accel_globals)
#endif
STD_PHP_INI_ENTRY("opcache.file_cache" , NULL , PHP_INI_SYSTEM, OnUpdateFileCache, accel_directives.file_cache, zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.file_cache_only" , "0" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.file_cache_only, zend_accel_globals, accel_globals)
STD_PHP_INI_BOOLEAN("opcache.file_cache_consistency_checks" , "1" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.file_cache_consistency_checks, zend_accel_globals, accel_globals)
#if ENABLE_FILE_CACHE_FALLBACK
STD_PHP_INI_BOOLEAN("opcache.file_cache_fallback" , "1" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.file_cache_fallback, zend_accel_globals, accel_globals)
#endif
#ifdef HAVE_HUGE_CODE_PAGES
STD_PHP_INI_BOOLEAN("opcache.huge_code_pages" , "0" , PHP_INI_SYSTEM, OnUpdateBool, accel_directives.huge_code_pages, zend_accel_globals, accel_globals)
#endif
STD_PHP_INI_ENTRY("opcache.preload" , "" , PHP_INI_SYSTEM, OnUpdateStringUnempty, accel_directives.preload, zend_accel_globals, accel_globals)
#ifndef ZEND_WIN32
STD_PHP_INI_ENTRY("opcache.preload_user" , "" , PHP_INI_SYSTEM, OnUpdateStringUnempty, accel_directives.preload_user, zend_accel_globals, accel_globals)
#endif
#if ZEND_WIN32
STD_PHP_INI_ENTRY("opcache.cache_id" , "" , PHP_INI_SYSTEM, OnUpdateString, accel_directives.cache_id, zend_accel_globals, accel_globals)
#endif
#ifdef HAVE_JIT
STD_PHP_INI_ENTRY("opcache.jit" , "tracing", PHP_INI_ALL, OnUpdateJit, options, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_buffer_size" , ZEND_JIT_DEFAULT_BUFFER_SIZE, PHP_INI_SYSTEM, OnUpdateLong, buffer_size, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_debug" , "0", PHP_INI_ALL, OnUpdateJitDebug, debug, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_bisect_limit" , "0", PHP_INI_ALL, OnUpdateLong, bisect_limit, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_prof_threshold" , "0.005", PHP_INI_ALL, OnUpdateReal, prof_threshold, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_max_root_traces" , "1024", PHP_INI_SYSTEM, OnUpdateLong, max_root_traces, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_max_side_traces" , "128", PHP_INI_SYSTEM, OnUpdateLong, max_side_traces, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_max_exit_counters" , "8192", PHP_INI_SYSTEM, OnUpdateLong, max_exit_counters, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_hot_loop" , "64", PHP_INI_SYSTEM, OnUpdateCounter, hot_loop, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_hot_func" , "127", PHP_INI_SYSTEM, OnUpdateCounter, hot_func, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_hot_return" , "8", PHP_INI_SYSTEM, OnUpdateCounter, hot_return, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_hot_side_exit" , "8", PHP_INI_ALL, OnUpdateCounter, hot_side_exit, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_blacklist_root_trace" , "16", PHP_INI_ALL, OnUpdateCounter, blacklist_root_trace, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_blacklist_side_trace" , "8", PHP_INI_ALL, OnUpdateCounter, blacklist_side_trace, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_max_loop_unrolls" , "8", PHP_INI_ALL, OnUpdateUnrollL, max_loop_unrolls, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_max_recursive_calls" , "2", PHP_INI_ALL, OnUpdateUnrollC, max_recursive_calls, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_max_recursive_returns" , "2", PHP_INI_ALL, OnUpdateUnrollR, max_recursive_returns, zend_jit_globals, jit_globals)
STD_PHP_INI_ENTRY("opcache.jit_max_polymorphic_calls" , "2", PHP_INI_ALL, OnUpdateLong, max_polymorphic_calls, zend_jit_globals, jit_globals)
#endif
ZEND_INI_END()
static int filename_is_in_cache(zend_string *filename)
{
zend_string *key;
key = accel_make_persistent_key(filename);
if (key != NULL) {
zend_persistent_script *persistent_script = zend_accel_hash_find(&ZCSG(hash), key);
if (persistent_script && !persistent_script->corrupted) {
if (ZCG(accel_directives).validate_timestamps) {
zend_file_handle handle;
int ret;
zend_stream_init_filename_ex(&handle, filename);
ret = validate_timestamp_and_record_ex(persistent_script, &handle) == SUCCESS
? 1 : 0;
zend_destroy_file_handle(&handle);
return ret;
}
return 1;
}
}
return 0;
}
static int accel_file_in_cache(INTERNAL_FUNCTION_PARAMETERS)
{
if (ZEND_NUM_ARGS() == 1) {
zval *zv = ZEND_CALL_ARG(execute_data , 1);
if (Z_TYPE_P(zv) == IS_STRING && Z_STRLEN_P(zv) != 0) {
return filename_is_in_cache(Z_STR_P(zv));
}
}
return 0;
}
static ZEND_NAMED_FUNCTION(accel_file_exists)
{
if (accel_file_in_cache(INTERNAL_FUNCTION_PARAM_PASSTHRU)) {
RETURN_TRUE;
} else {
orig_file_exists(INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
}
static ZEND_NAMED_FUNCTION(accel_is_file)
{
if (accel_file_in_cache(INTERNAL_FUNCTION_PARAM_PASSTHRU)) {
RETURN_TRUE;
} else {
orig_is_file(INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
}
static ZEND_NAMED_FUNCTION(accel_is_readable)
{
if (accel_file_in_cache(INTERNAL_FUNCTION_PARAM_PASSTHRU)) {
RETURN_TRUE;
} else {
orig_is_readable(INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
}
static ZEND_MINIT_FUNCTION(zend_accelerator)
{
(void)type; /* keep the compiler happy */
REGISTER_INI_ENTRIES();
return SUCCESS;
}
void zend_accel_override_file_functions(void)
{
zend_function *old_function;
if (ZCG(enabled) && accel_startup_ok && ZCG(accel_directives).file_override_enabled) {
if (file_cache_only) {
zend_accel_error(ACCEL_LOG_WARNING, "file_override_enabled has no effect when file_cache_only is set");
return;
}
/* override file_exists */
if ((old_function = zend_hash_str_find_ptr(CG(function_table), "file_exists", sizeof("file_exists")-1)) != NULL) {
orig_file_exists = old_function->internal_function.handler;
old_function->internal_function.handler = accel_file_exists;
}
if ((old_function = zend_hash_str_find_ptr(CG(function_table), "is_file", sizeof("is_file")-1)) != NULL) {
orig_is_file = old_function->internal_function.handler;
old_function->internal_function.handler = accel_is_file;
}
if ((old_function = zend_hash_str_find_ptr(CG(function_table), "is_readable", sizeof("is_readable")-1)) != NULL) {
orig_is_readable = old_function->internal_function.handler;
old_function->internal_function.handler = accel_is_readable;
}
}
}
static ZEND_MSHUTDOWN_FUNCTION(zend_accelerator)
{
(void)type; /* keep the compiler happy */
UNREGISTER_INI_ENTRIES();
accel_shutdown();
return SUCCESS;
}
void zend_accel_info(ZEND_MODULE_INFO_FUNC_ARGS)
{
php_info_print_table_start();
if (ZCG(accelerator_enabled) || file_cache_only) {
php_info_print_table_row(2, "Opcode Caching", "Up and Running");
} else {
php_info_print_table_row(2, "Opcode Caching", "Disabled");
}
if (ZCG(enabled) && accel_startup_ok && ZCG(accel_directives).optimization_level) {
php_info_print_table_row(2, "Optimization", "Enabled");
} else {
php_info_print_table_row(2, "Optimization", "Disabled");
}
if (!file_cache_only) {
php_info_print_table_row(2, "SHM Cache", "Enabled");
} else {
php_info_print_table_row(2, "SHM Cache", "Disabled");
}
if (ZCG(accel_directives).file_cache) {
php_info_print_table_row(2, "File Cache", "Enabled");
} else {
php_info_print_table_row(2, "File Cache", "Disabled");
}
#if HAVE_JIT
if (JIT_G(enabled)) {
if (JIT_G(on)) {
php_info_print_table_row(2, "JIT", "On");
} else {
php_info_print_table_row(2, "JIT", "Off");
}
} else {
php_info_print_table_row(2, "JIT", "Disabled");
}
#else
php_info_print_table_row(2, "JIT", "Not Available");
#endif
if (file_cache_only) {
if (!accel_startup_ok || zps_api_failure_reason) {
php_info_print_table_row(2, "Startup Failed", zps_api_failure_reason);
} else {
php_info_print_table_row(2, "Startup", "OK");
}
} else
if (ZCG(enabled)) {
if (!accel_startup_ok || zps_api_failure_reason) {
php_info_print_table_row(2, "Startup Failed", zps_api_failure_reason);
} else {
char buf[32];
php_info_print_table_row(2, "Startup", "OK");
php_info_print_table_row(2, "Shared memory model", zend_accel_get_shared_model());
snprintf(buf, sizeof(buf), ZEND_ULONG_FMT, ZCSG(hits));
php_info_print_table_row(2, "Cache hits", buf);
snprintf(buf, sizeof(buf), ZEND_ULONG_FMT, ZSMMG(memory_exhausted)?ZCSG(misses):ZCSG(misses)-ZCSG(blacklist_misses));
php_info_print_table_row(2, "Cache misses", buf);
snprintf(buf, sizeof(buf), ZEND_LONG_FMT, ZCG(accel_directives).memory_consumption-zend_shared_alloc_get_free_memory()-ZSMMG(wasted_shared_memory));
php_info_print_table_row(2, "Used memory", buf);
snprintf(buf, sizeof(buf), "%zu", zend_shared_alloc_get_free_memory());
php_info_print_table_row(2, "Free memory", buf);
snprintf(buf, sizeof(buf), "%zu", ZSMMG(wasted_shared_memory));
php_info_print_table_row(2, "Wasted memory", buf);
if (ZCSG(interned_strings).start && ZCSG(interned_strings).end) {
snprintf(buf, sizeof(buf), "%zu", (size_t)((char*)ZCSG(interned_strings).top - (char*)(accel_shared_globals + 1)));
php_info_print_table_row(2, "Interned Strings Used memory", buf);
snprintf(buf, sizeof(buf), "%zu", (size_t)((char*)ZCSG(interned_strings).end - (char*)ZCSG(interned_strings).top));
php_info_print_table_row(2, "Interned Strings Free memory", buf);
}
snprintf(buf, sizeof(buf), "%" PRIu32, ZCSG(hash).num_direct_entries);
php_info_print_table_row(2, "Cached scripts", buf);
snprintf(buf, sizeof(buf), "%" PRIu32, ZCSG(hash).num_entries);
php_info_print_table_row(2, "Cached keys", buf);
snprintf(buf, sizeof(buf), "%" PRIu32, ZCSG(hash).max_num_entries);
php_info_print_table_row(2, "Max keys", buf);
snprintf(buf, sizeof(buf), ZEND_ULONG_FMT, ZCSG(oom_restarts));
php_info_print_table_row(2, "OOM restarts", buf);
snprintf(buf, sizeof(buf), ZEND_ULONG_FMT, ZCSG(hash_restarts));
php_info_print_table_row(2, "Hash keys restarts", buf);
snprintf(buf, sizeof(buf), ZEND_ULONG_FMT, ZCSG(manual_restarts));
php_info_print_table_row(2, "Manual restarts", buf);
}
}
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
static zend_module_entry accel_module_entry = {
STANDARD_MODULE_HEADER,
ACCELERATOR_PRODUCT_NAME,
ext_functions,
ZEND_MINIT(zend_accelerator),
ZEND_MSHUTDOWN(zend_accelerator),
accel_activate,
NULL,
zend_accel_info,
PHP_VERSION,
NO_MODULE_GLOBALS,
accel_post_deactivate,
STANDARD_MODULE_PROPERTIES_EX
};
int start_accel_module(void)
{
return zend_startup_module(&accel_module_entry);
}
/* {{{ Get the scripts which are accelerated by ZendAccelerator */
static int accelerator_get_scripts(zval *return_value)
{
uint32_t i;
zval persistent_script_report;
zend_accel_hash_entry *cache_entry;
struct tm *ta;
struct timeval exec_time;
struct timeval fetch_time;
if (!ZCG(accelerator_enabled) || accelerator_shm_read_lock() != SUCCESS) {
return 0;
}
array_init(return_value);
for (i = 0; i<ZCSG(hash).max_num_entries; i++) {
for (cache_entry = ZCSG(hash).hash_table[i]; cache_entry; cache_entry = cache_entry->next) {
zend_persistent_script *script;
char *str;
size_t len;
if (cache_entry->indirect) continue;
script = (zend_persistent_script *)cache_entry->data;
array_init(&persistent_script_report);
add_assoc_str(&persistent_script_report, "full_path", zend_string_dup(script->script.filename, 0));
add_assoc_long(&persistent_script_report, "hits", (zend_long)script->dynamic_members.hits);
add_assoc_long(&persistent_script_report, "memory_consumption", script->dynamic_members.memory_consumption);
ta = localtime(&script->dynamic_members.last_used);
str = asctime(ta);
len = strlen(str);
if (len > 0 && str[len - 1] == '\n') len--;
add_assoc_stringl(&persistent_script_report, "last_used", str, len);
add_assoc_long(&persistent_script_report, "last_used_timestamp", script->dynamic_members.last_used);
if (ZCG(accel_directives).validate_timestamps) {
add_assoc_long(&persistent_script_report, "timestamp", (zend_long)script->timestamp);
}
timerclear(&exec_time);
timerclear(&fetch_time);
zend_hash_update(Z_ARRVAL_P(return_value), cache_entry->key, &persistent_script_report);
}
}
accelerator_shm_read_unlock();
return 1;
}
/* {{{ Obtain statistics information regarding code acceleration */
ZEND_FUNCTION(opcache_get_status)
{
zend_long reqs;
zval memory_usage, statistics, scripts;
bool fetch_scripts = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|b", &fetch_scripts) == FAILURE) {
RETURN_THROWS();
}
if (!validate_api_restriction()) {
RETURN_FALSE;
}
if (!accel_startup_ok) {
RETURN_FALSE;
}
array_init(return_value);
/* Trivia */
add_assoc_bool(return_value, "opcache_enabled", ZCG(accelerator_enabled));
if (ZCG(accel_directives).file_cache) {
add_assoc_string(return_value, "file_cache", ZCG(accel_directives).file_cache);
}
if (file_cache_only) {
add_assoc_bool(return_value, "file_cache_only", 1);
return;
}
add_assoc_bool(return_value, "cache_full", ZSMMG(memory_exhausted));
add_assoc_bool(return_value, "restart_pending", ZCSG(restart_pending));
add_assoc_bool(return_value, "restart_in_progress", ZCSG(restart_in_progress));
/* Memory usage statistics */
array_init(&memory_usage);
add_assoc_long(&memory_usage, "used_memory", ZCG(accel_directives).memory_consumption-zend_shared_alloc_get_free_memory()-ZSMMG(wasted_shared_memory));
add_assoc_long(&memory_usage, "free_memory", zend_shared_alloc_get_free_memory());
add_assoc_long(&memory_usage, "wasted_memory", ZSMMG(wasted_shared_memory));
add_assoc_double(&memory_usage, "current_wasted_percentage", (((double) ZSMMG(wasted_shared_memory))/ZCG(accel_directives).memory_consumption)*100.0);
add_assoc_zval(return_value, "memory_usage", &memory_usage);
if (ZCSG(interned_strings).start && ZCSG(interned_strings).end) {
zval interned_strings_usage;
array_init(&interned_strings_usage);
add_assoc_long(&interned_strings_usage, "buffer_size", (char*)ZCSG(interned_strings).end - (char*)(accel_shared_globals + 1));
add_assoc_long(&interned_strings_usage, "used_memory", (char*)ZCSG(interned_strings).top - (char*)(accel_shared_globals + 1));
add_assoc_long(&interned_strings_usage, "free_memory", (char*)ZCSG(interned_strings).end - (char*)ZCSG(interned_strings).top);
add_assoc_long(&interned_strings_usage, "number_of_strings", ZCSG(interned_strings).nNumOfElements);
add_assoc_zval(return_value, "interned_strings_usage", &interned_strings_usage);
}
/* Accelerator statistics */
array_init(&statistics);
add_assoc_long(&statistics, "num_cached_scripts", ZCSG(hash).num_direct_entries);
add_assoc_long(&statistics, "num_cached_keys", ZCSG(hash).num_entries);
add_assoc_long(&statistics, "max_cached_keys", ZCSG(hash).max_num_entries);
add_assoc_long(&statistics, "hits", (zend_long)ZCSG(hits));
add_assoc_long(&statistics, "start_time", ZCSG(start_time));
add_assoc_long(&statistics, "last_restart_time", ZCSG(last_restart_time));
add_assoc_long(&statistics, "oom_restarts", ZCSG(oom_restarts));
add_assoc_long(&statistics, "hash_restarts", ZCSG(hash_restarts));
add_assoc_long(&statistics, "manual_restarts", ZCSG(manual_restarts));
add_assoc_long(&statistics, "misses", ZSMMG(memory_exhausted)?ZCSG(misses):ZCSG(misses)-ZCSG(blacklist_misses));
add_assoc_long(&statistics, "blacklist_misses", ZCSG(blacklist_misses));
reqs = ZCSG(hits)+ZCSG(misses);
add_assoc_double(&statistics, "blacklist_miss_ratio", reqs?(((double) ZCSG(blacklist_misses))/reqs)*100.0:0);
add_assoc_double(&statistics, "opcache_hit_rate", reqs?(((double) ZCSG(hits))/reqs)*100.0:0);
add_assoc_zval(return_value, "opcache_statistics", &statistics);
if (ZCSG(preload_script)) {
array_init(&statistics);
add_assoc_long(&statistics, "memory_consumption", ZCSG(preload_script)->dynamic_members.memory_consumption);
if (zend_hash_num_elements(&ZCSG(preload_script)->script.function_table)) {
zend_op_array *op_array;
array_init(&scripts);
ZEND_HASH_FOREACH_PTR(&ZCSG(preload_script)->script.function_table, op_array) {
add_next_index_str(&scripts, op_array->function_name);
} ZEND_HASH_FOREACH_END();
add_assoc_zval(&statistics, "functions", &scripts);
}
if (zend_hash_num_elements(&ZCSG(preload_script)->script.class_table)) {
zend_class_entry *ce;
zend_string *key;
array_init(&scripts);
ZEND_HASH_FOREACH_STR_KEY_PTR(&ZCSG(preload_script)->script.class_table, key, ce) {
if (ce->refcount > 1 && !zend_string_equals_ci(key, ce->name)) {
add_next_index_str(&scripts, key);
} else {
add_next_index_str(&scripts, ce->name);
}
} ZEND_HASH_FOREACH_END();
add_assoc_zval(&statistics, "classes", &scripts);
}
if (ZCSG(saved_scripts)) {
zend_persistent_script **p = ZCSG(saved_scripts);
array_init(&scripts);
while (*p) {
add_next_index_str(&scripts, (*p)->script.filename);
p++;
}
add_assoc_zval(&statistics, "scripts", &scripts);
}
add_assoc_zval(return_value, "preload_statistics", &statistics);
}
if (fetch_scripts) {
/* accelerated scripts */
if (accelerator_get_scripts(&scripts)) {
add_assoc_zval(return_value, "scripts", &scripts);
}
}
#if HAVE_JIT
zend_jit_status(return_value);
#endif
}
static int add_blacklist_path(zend_blacklist_entry *p, zval *return_value)
{
add_next_index_stringl(return_value, p->path, p->path_length);
return 0;
}
/* {{{ Obtain configuration information */
ZEND_FUNCTION(opcache_get_configuration)
{
zval directives, version, blacklist;
if (zend_parse_parameters_none() == FAILURE) {
RETURN_THROWS();
}
if (!validate_api_restriction()) {
RETURN_FALSE;
}
array_init(return_value);
/* directives */
array_init(&directives);
add_assoc_bool(&directives, "opcache.enable", ZCG(enabled));
add_assoc_bool(&directives, "opcache.enable_cli", ZCG(accel_directives).enable_cli);
add_assoc_bool(&directives, "opcache.use_cwd", ZCG(accel_directives).use_cwd);
add_assoc_bool(&directives, "opcache.validate_timestamps", ZCG(accel_directives).validate_timestamps);
add_assoc_bool(&directives, "opcache.validate_permission", ZCG(accel_directives).validate_permission);
#ifndef ZEND_WIN32
add_assoc_bool(&directives, "opcache.validate_root", ZCG(accel_directives).validate_root);
#endif
add_assoc_bool(&directives, "opcache.dups_fix", ZCG(accel_directives).ignore_dups);
add_assoc_bool(&directives, "opcache.revalidate_path", ZCG(accel_directives).revalidate_path);
add_assoc_long(&directives, "opcache.log_verbosity_level", ZCG(accel_directives).log_verbosity_level);
add_assoc_long(&directives, "opcache.memory_consumption", ZCG(accel_directives).memory_consumption);
add_assoc_long(&directives, "opcache.interned_strings_buffer",ZCG(accel_directives).interned_strings_buffer);
add_assoc_long(&directives, "opcache.max_accelerated_files", ZCG(accel_directives).max_accelerated_files);
add_assoc_double(&directives, "opcache.max_wasted_percentage", ZCG(accel_directives).max_wasted_percentage);
add_assoc_long(&directives, "opcache.consistency_checks", ZCG(accel_directives).consistency_checks);
add_assoc_long(&directives, "opcache.force_restart_timeout", ZCG(accel_directives).force_restart_timeout);
add_assoc_long(&directives, "opcache.revalidate_freq", ZCG(accel_directives).revalidate_freq);
add_assoc_string(&directives, "opcache.preferred_memory_model", STRING_NOT_NULL(ZCG(accel_directives).memory_model));
add_assoc_string(&directives, "opcache.blacklist_filename", STRING_NOT_NULL(ZCG(accel_directives).user_blacklist_filename));
add_assoc_long(&directives, "opcache.max_file_size", ZCG(accel_directives).max_file_size);
add_assoc_string(&directives, "opcache.error_log", STRING_NOT_NULL(ZCG(accel_directives).error_log));
add_assoc_bool(&directives, "opcache.protect_memory", ZCG(accel_directives).protect_memory);
add_assoc_bool(&directives, "opcache.save_comments", ZCG(accel_directives).save_comments);
add_assoc_bool(&directives, "opcache.record_warnings", ZCG(accel_directives).record_warnings);
add_assoc_bool(&directives, "opcache.enable_file_override", ZCG(accel_directives).file_override_enabled);
add_assoc_long(&directives, "opcache.optimization_level", ZCG(accel_directives).optimization_level);
#ifndef ZEND_WIN32
add_assoc_string(&directives, "opcache.lockfile_path", STRING_NOT_NULL(ZCG(accel_directives).lockfile_path));
#else
add_assoc_string(&directives, "opcache.mmap_base", STRING_NOT_NULL(ZCG(accel_directives).mmap_base));
#endif
add_assoc_string(&directives, "opcache.file_cache", ZCG(accel_directives).file_cache ? ZCG(accel_directives).file_cache : "");
add_assoc_bool(&directives, "opcache.file_cache_only", ZCG(accel_directives).file_cache_only);
add_assoc_bool(&directives, "opcache.file_cache_consistency_checks", ZCG(accel_directives).file_cache_consistency_checks);
#if ENABLE_FILE_CACHE_FALLBACK
add_assoc_bool(&directives, "opcache.file_cache_fallback", ZCG(accel_directives).file_cache_fallback);
#endif
add_assoc_long(&directives, "opcache.file_update_protection", ZCG(accel_directives).file_update_protection);
add_assoc_long(&directives, "opcache.opt_debug_level", ZCG(accel_directives).opt_debug_level);
add_assoc_string(&directives, "opcache.restrict_api", STRING_NOT_NULL(ZCG(accel_directives).restrict_api));
#ifdef HAVE_HUGE_CODE_PAGES
add_assoc_bool(&directives, "opcache.huge_code_pages", ZCG(accel_directives).huge_code_pages);
#endif
add_assoc_string(&directives, "opcache.preload", STRING_NOT_NULL(ZCG(accel_directives).preload));
#ifndef ZEND_WIN32
add_assoc_string(&directives, "opcache.preload_user", STRING_NOT_NULL(ZCG(accel_directives).preload_user));
#endif
#if ZEND_WIN32
add_assoc_string(&directives, "opcache.cache_id", STRING_NOT_NULL(ZCG(accel_directives).cache_id));
#endif
#ifdef HAVE_JIT
add_assoc_string(&directives, "opcache.jit", JIT_G(options));
add_assoc_long(&directives, "opcache.jit_buffer_size", JIT_G(buffer_size));
add_assoc_long(&directives, "opcache.jit_debug", JIT_G(debug));
add_assoc_long(&directives, "opcache.jit_bisect_limit", JIT_G(bisect_limit));
add_assoc_long(&directives, "opcache.jit_blacklist_root_trace", JIT_G(blacklist_root_trace));
add_assoc_long(&directives, "opcache.jit_blacklist_side_trace", JIT_G(blacklist_side_trace));
add_assoc_long(&directives, "opcache.jit_hot_func", JIT_G(hot_func));
add_assoc_long(&directives, "opcache.jit_hot_loop", JIT_G(hot_loop));
add_assoc_long(&directives, "opcache.jit_hot_return", JIT_G(hot_return));
add_assoc_long(&directives, "opcache.jit_hot_side_exit", JIT_G(hot_side_exit));
add_assoc_long(&directives, "opcache.jit_max_exit_counters", JIT_G(max_exit_counters));
add_assoc_long(&directives, "opcache.jit_max_loop_unrolls", JIT_G(max_loop_unrolls));
add_assoc_long(&directives, "opcache.jit_max_polymorphic_calls", JIT_G(max_polymorphic_calls));
add_assoc_long(&directives, "opcache.jit_max_recursive_calls", JIT_G(max_recursive_calls));
add_assoc_long(&directives, "opcache.jit_max_recursive_returns", JIT_G(max_recursive_returns));
add_assoc_long(&directives, "opcache.jit_max_root_traces", JIT_G(max_root_traces));
add_assoc_long(&directives, "opcache.jit_max_side_traces", JIT_G(max_side_traces));
add_assoc_long(&directives, "opcache.jit_prof_threshold", JIT_G(prof_threshold));
#endif
add_assoc_zval(return_value, "directives", &directives);
/*version */
array_init(&version);
add_assoc_string(&version, "version", PHP_VERSION);
add_assoc_string(&version, "opcache_product_name", ACCELERATOR_PRODUCT_NAME);
add_assoc_zval(return_value, "version", &version);
/* blacklist */
array_init(&blacklist);
zend_accel_blacklist_apply(&accel_blacklist, add_blacklist_path, &blacklist);
add_assoc_zval(return_value, "blacklist", &blacklist);
}
/* {{{ Request that the contents of the opcode cache to be reset */
ZEND_FUNCTION(opcache_reset)
{
if (zend_parse_parameters_none() == FAILURE) {
RETURN_THROWS();
}
if (!validate_api_restriction()) {
RETURN_FALSE;
}
if ((!ZCG(enabled) || !accel_startup_ok || !ZCSG(accelerator_enabled))
#if ENABLE_FILE_CACHE_FALLBACK
&& !fallback_process
#endif
) {
RETURN_FALSE;
}
/* exclusive lock */
zend_shared_alloc_lock();
zend_accel_schedule_restart(ACCEL_RESTART_USER);
zend_shared_alloc_unlock();
RETURN_TRUE;
}
/* {{{ Invalidates cached script (in necessary or forced) */
ZEND_FUNCTION(opcache_invalidate)
{
zend_string *script_name;
bool force = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S|b", &script_name, &force) == FAILURE) {
RETURN_THROWS();
}
if (!validate_api_restriction()) {
RETURN_FALSE;
}
if (zend_accel_invalidate(script_name, force) == SUCCESS) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
ZEND_FUNCTION(opcache_compile_file)
{
zend_string *script_name;
zend_file_handle handle;
zend_op_array *op_array = NULL;
zend_execute_data *orig_execute_data = NULL;
uint32_t orig_compiler_options;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &script_name) == FAILURE) {
RETURN_THROWS();
}
if (!accel_startup_ok) {
zend_error(E_NOTICE, ACCELERATOR_PRODUCT_NAME " has not been properly started, can't compile file");
RETURN_FALSE;
}
zend_stream_init_filename_ex(&handle, script_name);
orig_execute_data = EG(current_execute_data);
orig_compiler_options = CG(compiler_options);
CG(compiler_options) |= ZEND_COMPILE_WITHOUT_EXECUTION;
if (CG(compiler_options) & ZEND_COMPILE_PRELOAD) {
/* During preloading, a failure in opcache_compile_file() should result in an overall
* preloading failure. Otherwise we may include partially compiled files in the preload
* state. */
op_array = persistent_compile_file(&handle, ZEND_INCLUDE);
} else {
zend_try {
op_array = persistent_compile_file(&handle, ZEND_INCLUDE);
} zend_catch {
EG(current_execute_data) = orig_execute_data;
zend_error(E_WARNING, ACCELERATOR_PRODUCT_NAME " could not compile file %s", ZSTR_VAL(handle.filename));
} zend_end_try();
}
CG(compiler_options) = orig_compiler_options;
if(op_array != NULL) {
destroy_op_array(op_array);
efree(op_array);
RETVAL_TRUE;
} else {
RETVAL_FALSE;
}
zend_destroy_file_handle(&handle);
}
/* {{{ Return true if the script is cached in OPCache, false if it is not cached or if OPCache is not running. */
ZEND_FUNCTION(opcache_is_script_cached)
{
zend_string *script_name;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STR(script_name)
ZEND_PARSE_PARAMETERS_END();
if (!validate_api_restriction()) {
RETURN_FALSE;
}
if (!ZCG(accelerator_enabled)) {
RETURN_FALSE;
}
RETURN_BOOL(filename_is_in_cache(script_name));
}
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