--- /dev/null
+++ Libc/Libc-391/ppc/sys/longjmp.s
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_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.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
+ *
+ *	File: sys/ppc/longjmp.s
+ *
+ *	Implements siglongjmp(), longjmp(), _longjmp() 
+ *
+ *	NOTE:	Scatterloading this file will BREAK the functions.
+ *
+ *	History:
+ *	30-Aug-1998	Umesh Vaishampayan	(umeshv@apple.com)
+ *		Created. Derived from _setjmp.s, setjmp.c and setjmp.s
+ */
+
+/* We use mode-independent "g" opcodes such as "stg", and/or
+ * mode-independent macros such as MI_GET_ADDRESS.  These expand
+ * into word operations when targeting __ppc__, and into doubleword
+ * operations when targeting __ppc64__.
+ */
+#include <architecture/ppc/mode_independent_asm.h>
+
+#include "SYS.h"
+#include "_setjmp.h"
+
+/*
+ *	longjmp routines
+ */
+
+/*	void siglongjmp(sigjmp_buf env, int val); */
+
+MI_ENTRY_POINT(_siglongjmp)
+	lg      r0, JMP_SIGFLAG(r3)	; load sigflag saved by siglongjmp()
+	cmpgi   cr1,r0,0			; this changes cr1 which is volatile
+	beq--   cr1, L__exit        ; if r0 == 0 do _longjmp()
+	; else *** fall through *** to longjmp()
+
+/*	void longjmp(jmp_buf env, int val); */
+
+MI_ENTRY_POINT(_longjmp)
+	mr      r30, r3             ; preserve args across _sigsetmask
+	mr      r31, r4
+    
+    /* NB: this code assumes the signal mask is an int.  Change the "lwz" below
+     * if not. The JMP_sig field is already 8 bytes in the jmpbuf.
+     */
+	lwz     r3, JMP_sig(r3)		; restore the signal mask
+	MI_CALL_EXTERNAL(_sigsetmask)   // make a (deprecated!) syscall to set the mask
+	mr      r4, r31
+	mr      r3, r30
+L__exit:
+	MI_BRANCH_EXTERNAL(__longjmp)