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ppc/sys/longjmp.s /dev/null Libc-262
--- /dev/null
+++ Libc/Libc-262/ppc/sys/longjmp.s
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ * 
+ * This 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 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
+ */
+
+#include "SYS.h"
+#include <architecture/ppc/asm_help.h>
+#include "_setjmp.h"
+
+/*
+ *	longjmp routines
+ */
+
+/*	void siglongjmp(sigjmp_buf env, int val); */
+
+LEAF(_siglongjmp)
+	lwz r0, JMP_SIGFLAG(r3)	; load sigflag saved by siglongjmp()
+	cmpwi cr1,r0,0			; this changes cr1[EQ] which is volatile
+	beq- cr1, L__longjmp	; if r0 == 0 do _longjmp()
+	; else *** fall through *** to longjmp()
+
+/*	void longjmp(jmp_buf env, int val); */
+
+LEAF(_longjmp)
+L_longjmp:
+	mr r30, r3
+	mr r31, r4
+	lwz r3, JMP_sig(r3)		; restore the signal mask
+	CALL_EXTERN(_sigsetmask)
+	mr r4, r31
+	mr r3, r30
+L__longjmp:
+	BRANCH_EXTERN(__longjmp)