xnu-792.22.5.tar.gz

[apple/xnu.git] / osfmk / ppc / status.c

diff --git a/osfmk/ppc/status.c b/osfmk/ppc/status.c
index c71f35bcaecb01b947ec891e9e83fbd7aff4f71d..1910f6adc25b66ec12c5787d0f65d555c94a2337 100644 (file)
--- a/osfmk/ppc/status.c
+++ b/osfmk/ppc/status.c
@@ -1,14 +1,19 @@
 /*
  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
@@ -18,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -1325,6 +1330,19 @@ thread_adjuserstack(thread_t thread, int adjust)
        
 }    
 
+void
+thread_setsinglestep(thread_t thread, int on)
+{
+       savearea *sv;
+       
+       sv = get_user_regs(thread);     /* Get the user state registers */
+       
+       if (on)
+               sv->save_srr1 |= MASK(MSR_SE);
+       else
+               sv->save_srr1 &= ~MASK(MSR_SE);
+}    
+
 /*
  * thread_setentrypoint:
  *