Loading...
--- /dev/null
+++ Libc/Libc-262.3.2/ppc/sys/setjmp.s
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ *
+ * 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/setjmp.s
+ *
+ * Implements sigsetjmp(), setjmp(), _setjmp()
+ *
+ * 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"
+
+/*
+ * setjmp routines
+ */
+
+/* int sigsetjmp(sigjmp_buf env, int savemask); */
+
+LEAF(_sigsetjmp)
+ cmpwi cr1,r4,0 ; this changes cr1[EQ] which is volatile
+ stw r4, JMP_SIGFLAG(r3) ; save the sigflag for use by siglongjmp()
+ beq- cr1, L__setjmp ; if r4 == 0 do _setjmp()
+ ; else *** fall through *** to setjmp()
+
+/* int setjmp(jmp_buf env); */
+
+LEAF(_setjmp)
+L_setjmp:
+ mflr r0
+ stw r31, JMP_r31(r3)
+ stw r0, JMP_lr(r3)
+ mr r31, r3
+ li r3, 0 ; get the previous signal mask
+ CALL_EXTERN(_sigblock)
+ stw r3, JMP_sig(r31) ; save the previous mask
+ mr r3, r31
+ lwz r0, JMP_lr(r3)
+ mtlr r0
+ lwz r31, JMP_r31(r3)
+L__setjmp:
+ BRANCH_EXTERN(__setjmp)