DEBUG: do not suppress arginfo / zpp mismatch via ZEND_SUPPRESS_ARGINFO_ZPP_MISMATCH

Author: zeriyoshi

Zend/tests/arginfo_zpp_mismatch.inc

@@ -10,6 +10,7 @@ function skipFunction($function): bool {
      || $function === 'zend_create_unterminated_string'
      || $function === 'zend_test_array_return'
      || $function === 'zend_leak_bytes'
+     || $function === 'zend_test_arginfo_zpp_mismatch'
         /* mess with output */
      || (is_string($function) && str_starts_with($function, 'ob_'))
      || $function === 'output_add_rewrite_var'

Zend/tests/arginfo_zpp_mismatch_suppress.phpt

@@ -0,0 +1,12 @@
+--TEST--
+Test suppressing arginfo / zpp mismatch
+--EXTENSIONS--
+zend_test
+--ENV--
+ZEND_SUPPRESS_ARGINFO_ZPP_MISMATCH=1
+--FILE--
+<?php
+zend_test_arginfo_zpp_mismatch(1);
+echo 'success';
+--EXPECT--
+success

Zend/tests/arginfo_zpp_mismatch_unsuppress.phpt

@@ -0,0 +1,12 @@
+--TEST--
+Test don't suppress arginfo / zpp mismatch
+--EXTENSIONS--
+zend_test
+--ENV--
+ZEND_SUPPRESS_ARGINFO_ZPP_MISMATCH=0
+--FILE--
+<?php
+zend_test_arginfo_zpp_mismatch(1);
+echo 'success';
+--EXPECTF--
+Fatal error: Arginfo / zpp mismatch during call of zend_test_arginfo_zpp_mismatch() in %s on line %d

Zend/zend.c

@@ -1008,6 +1008,11 @@ void zend_startup(zend_utility_functions *utility_functions) /* {{{ */
 	tsrm_set_new_thread_end_handler(zend_new_thread_end_handler);
 	tsrm_set_shutdown_handler(zend_interned_strings_dtor);
 #endif
+
+#ifdef ZEND_DEBUG
+	char *tmp = getenv("ZEND_SUPPRESS_ARGINFO_ZPP_MISMATCH");
+	EG(suppress_arginfo_zpp_mismatch) = tmp && ZEND_ATOL(tmp);
+#endif
 }
 /* }}} */
 

Zend/zend_execute.c

@@ -1210,6 +1210,10 @@ static zend_never_inline ZEND_ATTRIBUTE_UNUSED bool zend_verify_internal_arg_typ
  * trust that arginfo matches what is enforced by zend_parse_parameters. */
 ZEND_API bool zend_internal_call_should_throw(zend_function *fbc, zend_execute_data *call)
 {
+	if (EG(suppress_arginfo_zpp_mismatch)) {
+		return 0;
+	}
+
 	if (fbc->internal_function.handler == ZEND_FN(pass) || (fbc->internal_function.fn_flags & ZEND_ACC_FAKE_CLOSURE)) {
 		/* Be lenient about the special pass function and about fake closures. */
 		return 0;

Zend/zend_globals.h

@@ -271,6 +271,10 @@ struct _zend_executor_globals {
 	zend_string *filename_override;
 	zend_long lineno_override;
 
+#ifdef ZEND_DEBUG
+	bool suppress_arginfo_zpp_mismatch;
+#endif
+
 	void *reserved[ZEND_MAX_RESERVED_RESOURCES];
 };
 

ext/zend_test/test.c

@@ -335,8 +335,21 @@ ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_zend_iterable_legacy, 0, 1, IS_I
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, arg2, IS_ITERABLE, 1, "null")
 ZEND_END_ARG_INFO()
 
+static ZEND_FUNCTION(zend_test_arginfo_zpp_mismatch)
+{
+	zend_long foo;
+
+	ZEND_PARSE_PARAMETERS_START(1, 1)
+		Z_PARAM_LONG(foo);
+	ZEND_PARSE_PARAMETERS_END();
+}
+
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_zend_test_arginfo_zpp_mismatch, 0, 0, IS_VOID, 0)
+ZEND_END_ARG_INFO()
+
 static const zend_function_entry ext_function_legacy[] = {
 	ZEND_FE(zend_iterable_legacy, arginfo_zend_iterable_legacy)
+	ZEND_FE(zend_test_arginfo_zpp_mismatch, arginfo_zend_test_arginfo_zpp_mismatch)
 	ZEND_FE_END
 };