Add OPCache support (#2400)

This PR is created from
#2290
The Github UI is stuck using that PR, so a new PR has been created.
https://a8c.slack.com/archives/C04BURZDHFH/p1753189537944499

## Motivation for the change, related issues
Related to #2251

With this PR, we are adding support for OPCache by introducing a new
`WITH_OPCACHE` argument, `true` by default.

## Implementation details
The OPCache library is always compiled as a [dynamic
library](https://github.com/php/php-src/blob/master/ext/opcache/config.m4#L29-L30).
Once #2248 is merged, we can proceed to use the dynamic library
generated instead of forcing a static compilation by patching
`ext/opcache/config.m4`.

### Caching mechanism

The OPCache [.m4
file](https://github.com/php/php-src/blob/master/ext/opcache/config.m4)
performs a series of tests.

| Feature checks | 7.0 | 7.1 | 7.2 | 7.3 | 7.4 | 8.0 | 8.1 | 8.2 | 8.3 |
8.4 |
| -------------------- | --- | --- | --- | --- | --- | --- | --- | --- |
--- | --- |
| `OPCACHE_FILE_CACHE` | ✅ | ✅ | ✅ | ✅ | | | | | | |
| `HUGE_CODE_PAGES` | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| `JIT` | | | | | | ✅ | ✅ | ✅ | ✅ | ✅ |
| `MPROTECT` | ✅ | ✅ | ✅ | ✅ | | | | | | |
| `SHM_IPC` | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| `SHM_MMAP_ANON` | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| `SHM_MMAP_ZERO` | ✅ | ✅ | ✅ | ✅ | | | | | | |
| `SHM_MMAP_POSIX` | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| `SHM_MMAP_FILE` | ✅ | ✅ | ✅ | ✅ | | | | | | |

In this PR, we force the Autoconf to recognize the `mmap(NULL, 4096,
PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);` emulated shared
(anonymous) memory by renaming `have_shm_mmap_anon` (renamed to
`php_cv_shm_mmap_anon` in PHP 8.4).

### Additional
Starting with Python 3.12, distutils was removed from the standard
library after being [deprecated](https://peps.python.org/pep-0632/) in
Python 3.10. Here, we force the last version to ensure that
`node-gyp/gyp/gyp_main.py` does not crash during compilation because it
does not find the module.

## Testing Instructions (or ideally a Blueprint)

## First test
Open `phpinfo.php` and search for \"Zend OPCache\". It should be \"Up
and Running\" and \"OK\" on startup

### Second test
Try [this
blueprint](http://127.0.0.1:5400/website-server/#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)
(https://gist.github.com/zaerl/3e60bff32e1e915d5acc509bd50e9762). It
will load WordPress +20 times so it will not open immediately.
\"Cached\" should be `true`, all the GET responses 200 OK. The
`opcache_enabled` field will be `false`. It is a well-known PHP
~~feature~~ [bug](https://bugs.php.net/bug.php?id=75070). Now open
`packages/php-wasm/universal/src/lib/php.ts` and comment out these two
lines:
```php
// 'opcache.file_cache_only = 1',
// 'opcache.file_cache_consistency_checks = 1',
```
The same page will show more details and an hit rate ~75%. Now visit
`wp-admin`, open some page. Go back to `opcache.php`, it should show
~90% or better.

Author: zaerl

.gitattributes

@@ -4,8 +4,10 @@ packages/docs/site/static/diagrams.excalidraw linguist-documentation=true
 packages/php-wasm/compile/*/dist linguist-vendored
 packages/php-wasm/compile/libz/zlib-src linguist-vendored
 packages/php-wasm/node/public/ linguist-generated=true
+packages/php-wasm/node/asyncify/** linguist-generated=true -diff
+packages/php-wasm/node/jspi/** linguist-generated=true -diff
 packages/php-wasm/node/src/test/test-data/ linguist-generated=true
-packages/php-wasm/web/public/php/ linguist-generated=true  -diff
+packages/php-wasm/web/public/php/** linguist-generated=true -diff
 packages/playground/sync/src/test/wp-* linguist-generated=true
 packages/playground/remote/public/wp-* linguist-generated=true -diff
 packages/playground/remote/src/wordpress linguist-generated=true -diff

.gitignore

@@ -65,3 +65,10 @@ php.js.bak
 # Since it is dynamically generated from the Node.js TLS module,
 # we do not want to commit it to the repository.
 packages/php-wasm/cli/src/ca-bundle.crt
+
+# PHPUnit
+.phpunit.result.cache
+
+# Debug artifacts generated by the build with --WITH_DEBUG, --WITH_SOURCEMAPS.
+packages/php-wasm/**/php-src/*
+packages/php-wasm/**/php.wasm.map

packages/php-wasm/compile/build.js

@@ -162,6 +162,15 @@ const argParser = yargs(process.argv.slice(2))
 			description: 'OpenSSL version to use',
 			default: '1.1.0h',
 		},
+		WITH_OPCACHE: {
+			type: 'string',
+			description: 'Build with OPCache support',
+		},
+		STACK_SIZE: {
+			type: 'string',
+			description: 'The emscripten stack size to use for the build',
+			default: '1MB',
+		},
 	});
 
 const args = argParser.argv;
@@ -183,6 +192,8 @@ const platformDefaults = {
 		WITH_INTL: 'yes',
 		WITH_OPENSSL: 'yes',
 		WITH_WS_NETWORKING_PROXY: 'yes',
+		WITH_OPCACHE: 'yes',
+		STACK_SIZE: '1MB',
 	},
 	web: {},
 	node: {
@@ -286,6 +297,10 @@ await asyncSpawn(
 		`EMSCRIPTEN_ENVIRONMENT=${platform === 'node' ? 'node' : 'web'}`,
 		'--build-arg',
 		getArg('WITH_JSPI'),
+		'--build-arg',
+		getArg('WITH_OPCACHE'),
+		'--build-arg',
+		getArg('STACK_SIZE'),
 	],
 	{ cwd: sourceDir, stdio: 'inherit' }
 );

packages/php-wasm/compile/opcache/opcache_module.c

@@ -0,0 +1,44 @@
+/**
+ * This file is a dummy file for the opcache extension. It is used to build the
+ * opcache extension as a static extension.
+ */
+
+#include "php.h"
+#include "php_opcache.h"
+#include "Zend/zend_extensions.h"
+
+/* Dummy module functions */
+PHP_MINIT_FUNCTION(opcache)
+{
+	/**
+	 * Register the Zend extension
+	 *
+	 * NOTE: The name `zend_extension_entry` sounds generic but actually
+	 * references the opcache-specific variable declared here:
+	 * https://github.com/php/php-src/blob/0f731b455c3759cd15698d8aeb98535feb86f8f1/ext/opcache/ZendAccelerator.c#L5022
+	 */
+	extern zend_extension zend_extension_entry;
+	zend_register_extension(&zend_extension_entry, NULL);
+	return SUCCESS;
+}
+
+/* Dummy module shutdown function */
+PHP_MSHUTDOWN_FUNCTION(opcache)
+{
+	/* The actual shutdown is handled by the Zend extension */
+	return SUCCESS;
+}
+
+/* Dummy PHP module entry for static builds */
+zend_module_entry opcache_module_entry = {
+	STANDARD_MODULE_HEADER,
+	"opcache",
+	NULL, /* functions */
+	PHP_MINIT(opcache),
+	PHP_MSHUTDOWN(opcache),
+	NULL, /* RINIT */
+	NULL, /* RSHUTDOWN */
+	NULL, /* MINFO */
+	PHP_VERSION,
+	STANDARD_MODULE_PROPERTIES
+};

packages/php-wasm/compile/opcache/php_opcache.h

@@ -0,0 +1,12 @@
+/*
+ * This file is a dummy file for the opcache extension. It is used to build the
+ * opcache extension as a static extension.
+*/
+
+#ifndef PHP_OPCACHE_H
+#define PHP_OPCACHE_H
+
+extern zend_module_entry opcache_module_entry;
+#define phpext_opcache_ptr &opcache_module_entry
+
+#endif /* PHP_OPCACHE_H */

packages/php-wasm/compile/php-wasm-memory-storage/wasm_memory_storage.c

@@ -25,7 +25,7 @@
 /**
  * Allocate a chunk of memory.
  *
- * This function implements the PHP Zend custom memory storage operation "chunk_free()".
+ * This function implements the PHP Zend custom memory storage operation "chunk_alloc()".
  *
  * Here is an example offered in the PHP source code:
  * https://github.com/php/php-src/blob/dbaeb62ab1e34067057170ab50cf39d1bde584d8/Zend/zend_alloc.h#L325

packages/php-wasm/compile/php/Dockerfile

@@ -10,6 +10,10 @@ ARG WITH_JSPI="no"
 # but just "7" is invalid because there's no branch PHP-7.
 ARG PHP_VERSION
 
+# Whether to build the opcache extension. The .m4 file is patched before the main
+# ./buildconf script is generated.
+ARG WITH_OPCACHE
+
 # Clone PHP
 RUN git clone https://github.com/php/php-src.git php-src \
 	--branch PHP-$PHP_VERSION \
@@ -25,6 +29,9 @@ COPY ./php-wasm-dns-polyfill/ /root/php-src/ext/dns_polyfill
 # Polyfill for post_message_to_js functions
 COPY ./php-post-message-to-js/ /root/php-src/ext/post_message_to_js
 
+# Copy the dummy opcache_module.c and php_opcache.h files.
+COPY ./opcache/ /root/php-src/ext/opcache
+
 # Bring in the libraries
 RUN mkdir -p /root/lib/include /root/lib/lib /libs
 COPY ./bison2.7/dist/ /libs/bison2.7
@@ -81,6 +88,31 @@ RUN if [[ "${PHP_VERSION:0:1}" -eq "7" && "${PHP_VERSION:2:1}" -le "3" ]]; then
 		cp /root/builds/libsqlite3/\<7\.4/sqlite_config0.m4 /root/php-src/ext/sqlite3/config0.m4; \
 	fi;
 
+# Patch OPcache config.m4 file if needed
+RUN if [ "$WITH_OPCACHE" = "yes" ]; \
+	then \
+		# Ensure mmap() shared memory is recognized, even if not true.
+		# This will #declare HAVE_SHM_MMAP_ANON 1 in php_config.h
+		if [[ "${PHP_VERSION:0:1}" -eq "8" && "${PHP_VERSION:2:1}" -eq "4" ]]; then \
+			# Name changed in 8.4. See https://github.com/php/php-src/commit/ca55603d8a27b4e1f9c12cf72acd0fd39a6ac059
+			/root/replace.sh 's/php_cv_shm_mmap_anon=no/php_cv_shm_mmap_anon=yes/g' /root/php-src/ext/opcache/config.m4; \
+		else \
+			/root/replace.sh 's/have_shm_mmap_anon=no/have_shm_mmap_anon=yes/g' /root/php-src/ext/opcache/config.m4; \
+			# PHP bug: PHP_NEW_EXTENSION do not read $ext_shared from the config.m4 file.
+			# https://github.com/php/php-src/blob/f35a22adba8a7ddf709c6cc98ecb57ba4dd8fe8c/ext/opcache/config.m4#L313
+			/root/replace.sh 's/shared,,/no,,/g' /root/php-src/ext/opcache/config.m4; \
+		fi; \
+		# Force OPcache to be built as a static extension. OPcache is always built as a shared extension.
+		/root/replace.sh 's/ext_shared=yes/ext_shared=no/g' /root/php-src/ext/opcache/config.m4; \
+		# Add the dummy opcache_module.c to the list of files to build.
+		/root/replace.sh 's/shared_alloc_mmap.c/shared_alloc_mmap.c opcache_module.c/g' /root/php-src/ext/opcache/config.m4; \
+		# Enable OPcache.
+		echo -n ' --enable-opcache --disable-opcache-jit --disable-huge-code-pages ' >> /root/.php-configure-flags; \
+	else \
+		# Be sure to disable OPcache if not needed.
+		echo -n ' --disable-opcache ' >> /root/.php-configure-flags; \
+	fi
+
 RUN cd php-src && ./buildconf --force
 
 # Build PHP
@@ -2063,6 +2095,7 @@ COPY ./php/phpwasm-emscripten-library-file-locking-for-node.js /root/phpwasm-ems
 COPY ./php/phpwasm-emscripten-library-known-undefined-functions.js /root/phpwasm-emscripten-library-known-undefined-functions.js
 ARG WITH_SOURCEMAPS
 ARG WITH_DEBUG
+ARG STACK_SIZE
 RUN set -euxo pipefail; \
 	mkdir -p /build/output; \
 	source /root/emsdk/emsdk_env.sh; \
@@ -2134,6 +2167,7 @@ RUN set -euxo pipefail; \
 	-s MIN_NODE_VERSION=200900 \
 	-s INITIAL_MEMORY=1024MB \
 	-s ALLOW_MEMORY_GROWTH=1 \
+	-s STACK_SIZE="$STACK_SIZE" \
 	-s ASSERTIONS=0 \
 	-s ERROR_ON_UNDEFINED_SYMBOLS=1 \
 	-s NODEJS_CATCH_EXIT=0 \
@@ -2191,7 +2225,7 @@ RUN set -euxo pipefail; \
 		/root/replace.sh "s/if\s*\(stream\.stream_ops\.poll\)/if (stream.stream_ops?.poll)/g" /root/output/php.js; \
 	# Emscripten allows only directories to be mounted, but in Playground we support mounting files, directories, and symlinks.
 		# For file mounting to work, we need to remove the directory check.
-		/root/replace-across-lines.sh 's/(\s+)if\s*\(\s*!FS\.isDir\(node\.mode\)\s*\)\s*\{\s+throw\s+new\s+FS\.ErrnoError\(54\)\s*;\s+\}(\s+)/$1$2/s' /root/output/php.js; \
+		/root/replace-across-lines.sh 's/(\s*)if\s*\(\s*!FS\.isDir\(node\.mode\)\s*\)\s*\{\s*throw\s*new\s*FS\.ErrnoError\(54\)\s*;?\s*\}(\s*)/$1$2/s' /root/output/php.js; \
 	# Make Emscripten websockets configurable
 		# Emscripten makes the Websocket proxy connect to a fixed URL.
 		# This assumes the traffic is always forwarded to the same target.
@@ -2273,6 +2307,7 @@ RUN set -euxo pipefail; \
 		fi; \
 		echo "export { dependencyFilename }; " >> /root/output/php-module.js && \
 		echo "export const dependenciesTotalSize = $FILE_SIZE; " >> /root/output/php-module.js && \
+		echo "const phpVersionString = '$PHP_VERSION';" >> /root/output/php-module.js && \
 		cat /root/esm-prefix.js >> /root/output/php-module.js && \
 		cat /root/output/php.js >> /root/output/php-module.js && \
 		cat /root/esm-suffix.js >> /root/output/php-module.js && \

packages/php-wasm/compile/php/esm-suffix.js

@@ -82,6 +82,15 @@ if (typeof NODEFS === 'object') {
     };
 }
 
+/**
+ * Expose the PHP version so the PHP class can make version-specific
+ * adjustments to `php.ini`.
+ */
+PHPLoader['phpVersion'] = (() => {
+    const [ major, minor, patch ] = phpVersionString.split('.').map(Number);
+    return { major, minor, patch };
+})();
+
 return PHPLoader;
 
 // Close the opening bracket from esm-prefix.js:

packages/php-wasm/compile/php/php7.0.patch

@@ -1,28 +1,35 @@
+diff --git a/php-src/ext/opcache/zend_accelerator_debug.c b/php-src/ext/opcache/zend_accelerator_debug.c
+index 4932999b624..c3f034855b5 100644
+--- a/php-src/ext/opcache/zend_accelerator_debug.c
++++ b/php-src/ext/opcache/zend_accelerator_debug.c
+@@ -25,6 +25,9 @@
+ #include <time.h>
+ #ifdef ZEND_WIN32
+ # include <process.h>
++#else
++/* Error: call to undeclared function 'getpid' */
++# include <unistd.h>
+ #endif
+ #include "ZendAccelerator.h"
+
 diff --git a/php-src/ext/pdo_sqlite/sqlite_statement.c b/php-src/ext/pdo_sqlite/sqlite_statement.c
+index 817e6294db1..2a30874f1c5 100644
 --- a/php-src/ext/pdo_sqlite/sqlite_statement.c
 +++ b/php-src/ext/pdo_sqlite/sqlite_statement.c
-@@ -299,7 +299,7 @@ static int pdo_sqlite_stmt_describe(pdo_stmt_t *stmt, int colno)
+@@ -261,7 +261,7 @@ static int pdo_sqlite_stmt_describe(pdo_stmt_t *stmt, int colno)
  	return 1;
  }
- 
+
 -static int pdo_sqlite_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, zend_ulong *len, int *caller_frees)
 +static int pdo_sqlite_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, size_t *len, int *caller_frees)
  {
  	pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;
  	if (!S->stmt) {
-
-
 diff --git a/php-src/ext/standard/file.c b/php-src/ext/standard/file.c
+index 0bb81cae8ba..f5ffbe48b65 100644
 --- a/php-src/ext/standard/file.c
 +++ b/php-src/ext/standard/file.c
-@@ -1691,18 +1691,32 @@ PHPAPI int php_copy_file_ctx(const char *src, const char *dest, int src_flg, php
- 	php_stream *srcstream = NULL, *deststream = NULL;
- 	int ret = FAILURE;
- 	php_stream_statbuf src_s, dest_s;
- 
- 	switch (php_stream_stat_path_ex(src, 0, &src_s, ctx)) {
- 		case -1:
- 			/* non-statable stream */
+@@ -1666,6 +1666,20 @@ PHPAPI int php_copy_file_ctx(const char *src, const char *dest, int src_flg, php
  			goto safe_to_copy;
  			break;
  		case 0:
@@ -43,24 +50,20 @@ diff --git a/php-src/ext/standard/file.c b/php-src/ext/standard/file.c
  			break;
  		default: /* failed to stat file, does not exist? */
  			return ret;
- 	}
- 	if (S_ISDIR(src_s.sb.st_mode)) {
- 		php_error_docref(NULL, E_WARNING, "The first argument to copy() function cannot be a directory");
- 		return FAILURE;
- 	}
 diff --git a/php-src/main/streams/cast.c b/php-src/main/streams/cast.c
+index fe56c9b0b5d..ea3fd445911 100644
 --- a/php-src/main/streams/cast.c
 +++ b/php-src/main/streams/cast.c
-@@ -113,10 +113,10 @@ static int stream_cookie_seeker(void *cookie, __off64_t *position, int whence)
+@@ -115,10 +115,10 @@ static int stream_cookie_seeker(void *cookie, __off64_t *position, int whence)
  	return 0;
  }
  # else
 -static int stream_cookie_seeker(void *cookie, zend_off_t position, int whence)
 +static int stream_cookie_seeker(void *cookie, long long *position, int whence)
  {
- 
+
 -	return php_stream_seek((php_stream *)cookie, position, whence);
 +	return php_stream_seek((php_stream *)cookie, *position, whence);
  }
  # endif
- 
+

packages/php-wasm/compile/php/php7.1.patch

@@ -1,28 +1,35 @@
+diff --git a/php-src/ext/opcache/zend_accelerator_debug.c b/php-src/ext/opcache/zend_accelerator_debug.c
+index bd3e55d6948..f0bc4cba61e 100644
+--- a/php-src/ext/opcache/zend_accelerator_debug.c
++++ b/php-src/ext/opcache/zend_accelerator_debug.c
+@@ -25,6 +25,9 @@
+ #include <time.h>
+ #ifdef ZEND_WIN32
+ # include <process.h>
++#else
++/* Error: call to undeclared function 'getpid' */
++# include <unistd.h>
+ #endif
+ #include "ZendAccelerator.h"
+
 diff --git a/php-src/ext/pdo_sqlite/sqlite_statement.c b/php-src/ext/pdo_sqlite/sqlite_statement.c
+index 4437bbbde03..66d2a581a02 100644
 --- a/php-src/ext/pdo_sqlite/sqlite_statement.c
 +++ b/php-src/ext/pdo_sqlite/sqlite_statement.c
-@@ -299,7 +299,7 @@ static int pdo_sqlite_stmt_describe(pdo_stmt_t *stmt, int colno)
+@@ -261,7 +261,7 @@ static int pdo_sqlite_stmt_describe(pdo_stmt_t *stmt, int colno)
  	return 1;
  }
- 
+
 -static int pdo_sqlite_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, zend_ulong *len, int *caller_frees)
 +static int pdo_sqlite_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, size_t *len, int *caller_frees)
  {
  	pdo_sqlite_stmt *S = (pdo_sqlite_stmt*)stmt->driver_data;
  	if (!S->stmt) {
-
-
 diff --git a/php-src/ext/standard/file.c b/php-src/ext/standard/file.c
+index 99abee6676a..2c175428fac 100644
 --- a/php-src/ext/standard/file.c
 +++ b/php-src/ext/standard/file.c
-@@ -1691,18 +1691,32 @@ PHPAPI int php_copy_file_ctx(const char *src, const char *dest, int src_flg, php
- 	php_stream *srcstream = NULL, *deststream = NULL;
- 	int ret = FAILURE;
- 	php_stream_statbuf src_s, dest_s;
- 
- 	switch (php_stream_stat_path_ex(src, 0, &src_s, ctx)) {
- 		case -1:
- 			/* non-statable stream */
+@@ -1666,6 +1666,20 @@ PHPAPI int php_copy_file_ctx(const char *src, const char *dest, int src_flg, php
  			goto safe_to_copy;
  			break;
  		case 0:
@@ -43,24 +50,20 @@ diff --git a/php-src/ext/standard/file.c b/php-src/ext/standard/file.c
  			break;
  		default: /* failed to stat file, does not exist? */
  			return ret;
- 	}
- 	if (S_ISDIR(src_s.sb.st_mode)) {
- 		php_error_docref(NULL, E_WARNING, "The first argument to copy() function cannot be a directory");
- 		return FAILURE;
- 	}
 diff --git a/php-src/main/streams/cast.c b/php-src/main/streams/cast.c
+index 9ef542086cc..26c90594d86 100644
 --- a/php-src/main/streams/cast.c
 +++ b/php-src/main/streams/cast.c
-@@ -113,10 +113,10 @@ static int stream_cookie_seeker(void *cookie, __off64_t *position, int whence)
+@@ -115,10 +115,10 @@ static int stream_cookie_seeker(void *cookie, __off64_t *position, int whence)
  	return 0;
  }
  # else
 -static int stream_cookie_seeker(void *cookie, zend_off_t position, int whence)
 +static int stream_cookie_seeker(void *cookie, long long *position, int whence)
  {
- 
+
 -	return php_stream_seek((php_stream *)cookie, position, whence);
 +	return php_stream_seek((php_stream *)cookie, *position, whence);
  }
  # endif
- 
+