1 files changed, 62 insertions, 0 deletions
diff --git a/lib/libc/alpha/gen/sigsetjmp.S b/lib/libc/alpha/gen/sigsetjmp.S
new file mode 100644
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+++ b/lib/libc/alpha/gen/sigsetjmp.S
@@ -0,0 +1,62 @@
+/*	$NetBSD: sigsetjmp.S,v 1.2 1996/10/17 03:08:07 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#include <machine/asm.h>
+
+/*
+ * C library -- sigsetjmp, siglongjmp
+ *
+ *	siglongjmp(a,v)
+ * will generate a "return(v)" from
+ * the last call to
+ *	sigsetjmp(a, mask)
+ * by restoring registers from the stack.
+ * If `mask' is non-zero, the previous signal
+ * state will be restored.
+ */
+
+	.set	noreorder
+
+LEAF(sigsetjmp, 2)
+	LDGP(pv)
+	stq	a1, (81 * 8)(a0)		/* save the mask */
+	bne	a1, Lsavesig			/* if !zero, save signals */
+	jmp	zero, _setjmp				/* else don't. */
+Lsavesig:
+	jmp	zero, setjmp
+END(sigsetjmp)
+
+LEAF(siglongjmp, 2)
+	LDGP(pv)
+	ldq	t0, (81 * 8)(a0)		/* get the mask */
+	bne	t0, Lrestoresig			/* if !zero, restore signals */
+	jmp	zero, _longjmp
+Lrestoresig:
+	jmp	zero, longjmp
+END(siglongjmp)