20000317 sourceware import

1 files changed, 140 insertions, 0 deletions

diff --git a/libgloss/pa/setjmp.S b/libgloss/pa/setjmp.S
new file mode 100644
index 000000000..aa1008788
--- /dev/null
+++ b/libgloss/pa/setjmp.S
@@ -0,0 +1,140 @@
+/* 
+ * Copyright (c) 1990,1994 The University of Utah and
+ * the Computer Systems Laboratory (CSL).  All rights reserved.
+ *
+ * Permission to use, copy, modify and distribute this software is hereby
+ * granted provided that (1) source code retains these copyright, permission,
+ * and disclaimer notices, and (2) redistributions including binaries
+ * reproduce the notices in supporting documentation, and (3) all advertising
+ * materials mentioning features or use of this software display the following
+ * acknowledgement: ``This product includes software developed by the
+ * Computer Systems Laboratory at the University of Utah.''
+ *
+ * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
+ * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
+ * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * CSL requests users of this software to return to csl-dist@cs.utah.edu any
+ * improvements that they make and grant CSL redistribution rights.
+ *
+ * 	Utah $Hdr: _setjmp.s 1.9 94/12/16$
+ */
+
+	.space	$TEXT$
+	.subspa $CODE$
+
+/*
+ * The PA jmp_buf is 48 words arranged as follows:
+ *
+ *	 0- 9:	sigcontext
+ *	10-26:	callee save GRs (r3-r18) and DP (r27)
+ *	   27:	callee save SRs (sr3)
+ *	28-47:	callee save FRs (fr12-fr21)
+ */
+
+/*
+ * int
+ * setjmp(env)
+ *	jmp_buf env;
+ * 
+ * This routine does not restore signal state.
+ */
+
+	.export	setjmp,entry
+	.export	_setjmp,entry
+	.proc
+	.callinfo
+setjmp
+_setjmp
+	.entry
+
+	/*
+	 * save sp and rp in sigcontext, skip the rest
+	 */
+	stw	%r30,8(%r26)
+	stw	%r2,24(%r26)
+	ldo	40(%r26),%r26
+
+	/*
+	 * save dp and the callee saves registers
+	 */
+	stwm	%r3,4(%r26)
+	stwm	%r4,4(%r26)
+	stwm	%r5,4(%r26)
+	stwm	%r6,4(%r26)
+	stwm	%r7,4(%r26)
+	stwm	%r8,4(%r26)
+	stwm	%r9,4(%r26)
+	stwm	%r10,4(%r26)
+	stwm	%r11,4(%r26)
+	stwm	%r12,4(%r26)
+	stwm	%r13,4(%r26)
+	stwm	%r14,4(%r26)
+	stwm	%r15,4(%r26)
+	stwm	%r16,4(%r26)
+	stwm	%r17,4(%r26)
+	stwm	%r18,4(%r26)
+	stwm	%r27,4(%r26)
+
+	mfsp	%sr3,%r9
+	stwm	%r9,4(%r26)
+
+	bv	0(%r2)
+	copy	%r0,%r28
+	.exit
+	.procend
+
+/*
+ * void 
+ * longjmp(env, val)
+ *	jmp_buf env;
+ *	int val;
+ * 
+ * This routine does not retore signal state.
+ * This routine does not override a zero val.
+ */
+
+	.export	longjmp,entry
+	.export	_longjmp,entry
+	.proc
+	.callinfo
+longjmp
+_longjmp
+
+	.entry
+
+	/*
+	 * restore sp and rp
+	 */
+	ldw	8(%r26),%r30
+	ldw	24(%r26),%r2
+	ldo	40(%r26),%r26
+
+	/*
+	 * restore callee saves registers
+	 */
+	ldwm	4(%r26),%r3
+	ldwm	4(%r26),%r4
+	ldwm	4(%r26),%r5
+	ldwm	4(%r26),%r6
+	ldwm	4(%r26),%r7
+	ldwm	4(%r26),%r8
+	ldwm	4(%r26),%r9
+	ldwm	4(%r26),%r10
+	ldwm	4(%r26),%r11
+	ldwm	4(%r26),%r12
+	ldwm	4(%r26),%r13
+	ldwm	4(%r26),%r14
+	ldwm	4(%r26),%r15
+	ldwm	4(%r26),%r16
+	ldwm	4(%r26),%r17
+	ldwm	4(%r26),%r18
+	ldwm	4(%r26),%r27
+
+	ldwm	4(%r26),%r9
+	mtsp	%r9,%sr3
+
+	bv	0(%r2)
+	copy	%r25,%r28
+	.exit
+	.procend