initial import

1 files changed, 47 insertions, 0 deletions

diff --git a/sysdeps/sparc/__longjmp.S b/sysdeps/sparc/__longjmp.S
new file mode 100644
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+++ b/sysdeps/sparc/__longjmp.S
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+/* Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+#ifdef __svr4__
+#include <sys/trap.h>
+#else
+#include <machine/trap.h>
+#endif
+
+/* NOTE: This code depends on the definition of `__jmp_buf' in <jmp_buf.h>.  */
+
+ENTRY (__longjmp)
+	/* Do a "flush register windows trap".  The trap handler in the
+	   kernel writes all the register windows to their stack slots, and
+	   marks them all as invalid (needing to be sucked up from the
+	   stack when used).  This ensures that all information needed to
+	   unwind to these callers is in memory, not in the register
+	   windows.  */
+	ta ST_FLUSH_WINDOWS
+	ld [%o0], %o7		/* Return PC.  */
+	ld [%o0 + 4], %fp	/* Saved SP.  */
+	sub %fp, 64, %sp	/* Allocate a register save area.  */
+
+	/* if (%o1 == 0) %o1 = 1; */
+	tst %o1
+	be,a Ldone
+	mov 1, %o1
+
+Ldone:	retl
+	/* On the way out, put the return value in %o0.  */
+	restore %o1, 0, %o0