From: deraadt <deraadt@openbsd.org>
Date: Fri, 15 Dec 1995 15:35:54 +0000 (+0000)
Subject: sigsetjmp from Havard.Eidnes@runit.sintef.no; netbsd pr#1793
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=b98ab1bbba57ebec07044237d66e950d9593d73b;p=openbsd

sigsetjmp from Havard.Eidnes@runit.sintef.no; netbsd pr#1793
---

diff --git a/lib/libc/arch/mips/gen/Makefile.inc b/lib/libc/arch/mips/gen/Makefile.inc
index f7df32f589b..00fdf52a1f6 100644
--- a/lib/libc/arch/mips/gen/Makefile.inc
+++ b/lib/libc/arch/mips/gen/Makefile.inc
@@ -1,6 +1,6 @@
-#	$NetBSD: Makefile.inc,v 1.3 1995/04/11 18:13:49 jtc Exp $
+#	$NetBSD: Makefile.inc,v 1.4 1995/12/15 01:12:36 jonathan Exp $
 
 SRCS+=	_setjmp.S fabs.S frexp.c infinity.c isinf.S ldexp.S modf.S
 SRCS+=	flt_rounds.c fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c \
 	fpsetround.c fpsetsticky.c
-SRCS+=	setjmp.S
+SRCS+=	setjmp.S sigsetjmp.S
diff --git a/lib/libc/arch/mips/gen/sigsetjmp.S b/lib/libc/arch/mips/gen/sigsetjmp.S
new file mode 100644
index 00000000000..3ebd51fab48
--- /dev/null
+++ b/lib/libc/arch/mips/gen/sigsetjmp.S
@@ -0,0 +1,71 @@
+/*-
+ * Copyright (c) 1991, 1993, 1995,
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Havard Eidnes.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/syscall.h>
+#include <machine/reg.h>
+#include <machine/machAsmDefs.h>
+#include <machine/setjmp.h>
+
+#if defined(LIBC_SCCS) && !defined(lint)
+	ASMSTR("from: @(#)setjmp.s	8.1 (Berkeley) 6/4/93")
+	ASMSTR("$Id: sigsetjmp.S,v 1.1 1995/12/15 15:35:56 deraadt Exp $")
+#endif /* LIBC_SCCS and not lint */
+
+/*
+ * C library -- sigsetjmp, siglongjmp
+ *
+ *	siglongjmp(a,v)
+ * will generate a "return(v)" from
+ * the last call to
+ *	sigsetjmp(a, savemask)
+ * by restoring registers from the stack,
+ * and dependent on savemask restores the
+ * signal mask.
+ */
+
+LEAF(sigsetjmp)
+	sw	a1, (_JBLEN*4)(a0)		# save "savemask"
+	bne	a1, 0x0, 1f			# do saving of signal mask?
+	j	_setjmp
+1:	j	setjmp
+END(sigsetjmp)
+
+LEAF(siglongjmp)
+	lw	t0, (_JBLEN * 4)(a0)		# get "savemask"
+	bne	t0, 0x0, 1f			# restore signal mask?
+	j	_longjmp
+1:	j	longjmp
+END(siglongjmp)