X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=mono%2Fsgen%2Fsgen-alloc.c;h=dcf977c06e1b736e4f46ad3ec4ea9a0d760eb2af;hb=60f85567e2d8918fed1c37dd4da3018026328980;hp=9d3f45195e115047b8e3c303c5d0ec1d21fbce6b;hpb=a341404ecdd3b5ca2ed0ab1e9a5bcb9b5ccd2566;p=mono.git

diff --git a/mono/sgen/sgen-alloc.c b/mono/sgen/sgen-alloc.c
index 9d3f45195e1..dcf977c06e1 100644
--- a/mono/sgen/sgen-alloc.c
+++ b/mono/sgen/sgen-alloc.c
@@ -10,18 +10,7 @@
  * Copyright 2011 Xamarin, Inc.
  * Copyright (C) 2012 Xamarin Inc
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License 2.0 as published by the Free Software Foundation;
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License 2.0 along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
  */
 
 /*
@@ -79,6 +68,9 @@ static __thread char *tlab_temp_end;
 static __thread char *tlab_real_end;
 /* Used by the managed allocator/wbarrier */
 static __thread char **tlab_next_addr MONO_ATTR_USED;
+#ifndef SGEN_WITHOUT_MONO
+static __thread volatile int *in_critical_region_addr MONO_ATTR_USED;
+#endif
 #endif
 
 #ifdef HAVE_KW_THREAD
@@ -208,11 +200,6 @@ sgen_alloc_obj_nolock (GCVTable vtable, size_t size)
 		if (G_LIKELY (new_next < TLAB_TEMP_END)) {
 			/* Fast path */
 
-			/* 
-			 * FIXME: We might need a memory barrier here so the change to tlab_next is 
-			 * visible before the vtable store.
-			 */
-
 			CANARIFY_ALLOC(p,real_size);
 			SGEN_LOG (6, "Allocated object %p, vtable: %p (%s), size: %zd", p, vtable, sgen_client_vtable_get_name (vtable), size);
 			binary_protocol_alloc (p , vtable, size, sgen_client_get_provenance ());
@@ -517,6 +504,9 @@ sgen_init_tlab_info (SgenThreadInfo* info)
 
 #ifdef HAVE_KW_THREAD
 	tlab_next_addr = &tlab_next;
+#ifndef SGEN_WITHOUT_MONO
+	in_critical_region_addr = &info->client_info.in_critical_region;
+#endif
 #endif
 }
 
@@ -541,13 +531,15 @@ sgen_init_allocator (void)
 #if defined(HAVE_KW_THREAD) && !defined(SGEN_WITHOUT_MONO)
 	int tlab_next_addr_offset = -1;
 	int tlab_temp_end_offset = -1;
-
+	int in_critical_region_addr_offset = -1;
 
 	MONO_THREAD_VAR_OFFSET (tlab_next_addr, tlab_next_addr_offset);
 	MONO_THREAD_VAR_OFFSET (tlab_temp_end, tlab_temp_end_offset);
+	MONO_THREAD_VAR_OFFSET (in_critical_region_addr, in_critical_region_addr_offset);
 
 	mono_tls_key_set_offset (TLS_KEY_SGEN_TLAB_NEXT_ADDR, tlab_next_addr_offset);
 	mono_tls_key_set_offset (TLS_KEY_SGEN_TLAB_TEMP_END, tlab_temp_end_offset);
+	mono_tls_key_set_offset (TLS_KEY_SGEN_IN_CRITICAL_REGION_ADDR, in_critical_region_addr_offset);
 #endif
 
 #ifdef HEAVY_STATISTICS