X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=compat_arch_x86.c;h=692417ee5067607293ef3c9129f34f8a8b7bb739;hp=41c6848fae195cfbc6e24837a4445d3ddbd02f88;hb=a34df756f236349fc574f05ed3cf41c1c77771c6;hpb=02be55611d3b1c7bf4fdfcb3a9c98f621882d417

diff --git a/compat_arch_x86.c b/compat_arch_x86.c
index 41c6848..692417e 100644
--- a/compat_arch_x86.c
+++ b/compat_arch_x86.c
@@ -3,7 +3,7 @@
  *
  * Userspace RCU library - x86 compatibility checks
  *
- * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -201,6 +201,56 @@ unsigned long _compat_uatomic_cmpxchg(void *addr, unsigned long old,
 	return retval;
 }
 
+void _compat_uatomic_or(void *addr, unsigned long v, int len)
+{
+	sigset_t mask;
+
+	mutex_lock_signal_save(&compat_mutex, &mask);
+	switch (len) {
+	case 1:
+		*(unsigned char *)addr |= (unsigned char)v;
+		break;
+	case 2:
+		*(unsigned short *)addr |= (unsigned short)v;
+		break;
+	case 4:
+		*(unsigned int *)addr |= (unsigned int)v;
+		break;
+	default:
+		/*
+		 * generate an illegal instruction. Cannot catch this with
+		 * linker tricks when optimizations are disabled.
+		 */
+		__asm__ __volatile__("ud2");
+	}
+	mutex_lock_signal_restore(&compat_mutex, &mask);
+}
+
+void _compat_uatomic_and(void *addr, unsigned long v, int len)
+{
+	sigset_t mask;
+
+	mutex_lock_signal_save(&compat_mutex, &mask);
+	switch (len) {
+	case 1:
+		*(unsigned char *)addr &= (unsigned char)v;
+		break;
+	case 2:
+		*(unsigned short *)addr &= (unsigned short)v;
+		break;
+	case 4:
+		*(unsigned int *)addr &= (unsigned int)v;
+		break;
+	default:
+		/*
+		 * generate an illegal instruction. Cannot catch this with
+		 * linker tricks when optimizations are disabled.
+		 */
+		__asm__ __volatile__("ud2");
+	}
+	mutex_lock_signal_restore(&compat_mutex, &mask);
+}
+
 unsigned long _compat_uatomic_add_return(void *addr, unsigned long v, int len)
 {
 	sigset_t mask;