Export FFI::__BIGGEST_ALIGNMENT__

Author: dstogov

ext/ffi/ffi.c

@@ -43,6 +43,11 @@
 #endif
 #endif
 
+#ifndef __BIGGEST_ALIGNMENT__
+/* XXX need something better, perhaps with regard to SIMD, etc. */
+# define __BIGGEST_ALIGNMENT__ sizeof(size_t)
+#endif
+
 ZEND_DECLARE_MODULE_GLOBALS(ffi)
 
 typedef enum _zend_ffi_tag_kind {
@@ -5035,6 +5040,8 @@ ZEND_MINIT_FUNCTION(ffi)
 	zend_ffi_handlers.get_properties       = zend_fake_get_properties;
 	zend_ffi_handlers.get_gc               = zend_fake_get_gc;
 
+	zend_declare_class_constant_long(zend_ffi_ce, "__BIGGEST_ALIGNMENT__", sizeof("__BIGGEST_ALIGNMENT__")-1, __BIGGEST_ALIGNMENT__);
+
 	INIT_NS_CLASS_ENTRY(ce, "FFI", "CData", NULL);
 	zend_ffi_cdata_ce = zend_register_internal_class(&ce);
 	zend_ffi_cdata_ce->ce_flags |= ZEND_ACC_FINAL;
@@ -6366,11 +6373,6 @@ void zend_ffi_set_abi(zend_ffi_dcl *dcl, uint16_t abi) /* {{{ */
 }
 /* }}} */
 
-#ifndef __BIGGEST_ALIGNMENT__
-/* XXX need something better, perhaps with regard to SIMD, etc. */
-# define __BIGGEST_ALIGNMENT__ sizeof(size_t)
-#endif
-
 #define SIMPLE_ATTRIBUTES(_) \
 	_(cdecl) \
 	_(fastcall) \

ext/ffi/tests/022.phpt

@@ -61,8 +61,8 @@ test_size(32, "struct {char a; uint32_t b __attribute__((aligned(16)));}");
 test_align(16, "struct {char a; uint32_t b __attribute__((aligned(16)));}");
 
 if (substr(PHP_OS, 0, 3) != 'WIN') {
-	test_size(32, "struct  {char a; uint32_t b __attribute__((aligned));}");
-	test_align(16, "struct  {char a; uint32_t b __attribute__((aligned));}");
+	test_size(FFI::__BIGGEST_ALIGNMENT__ * 2, "struct  {char a; uint32_t b __attribute__((aligned));}");
+	test_align(FFI::__BIGGEST_ALIGNMENT__, "struct  {char a; uint32_t b __attribute__((aligned));}");
 }
 
 test_size(16, "struct  __declspec(align(16)) {char a; uint32_t b;}");