[PARISC] import necessary bits of libgcc.a

Currently we're hacking libs-y to include libgcc.a, but this has
unforeseen consequences since the userspace libgcc is linked with fpregs
enabled. We need the kernel to stop using fpregs in an uncontrolled manner
to implement lazy fpu state saves.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

1 files changed, 32 insertions, 0 deletions

diff --git a/arch/parisc/lib/milli/dyncall.S b/arch/parisc/lib/milli/dyncall.S
new file mode 100644
index 000000000000..27f9ca558d0a
--- /dev/null
+++ b/arch/parisc/lib/milli/dyncall.S
@@ -0,0 +1,32 @@
+/* 32 and 64-bit millicode, original author Hewlett-Packard
+   adapted for gcc by Paul Bame <bame@debian.org>
+   and Alan Modra <alan@linuxcare.com.au>.
+
+   Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
+
+   This file is part of GCC and is released under the terms of
+   of the GNU General Public License as published by the Free Software
+   Foundation; either version 2, or (at your option) any later version.
+   See the file COPYING in the top-level GCC source directory for a copy
+   of the license.  */
+
+#include "milli.h"
+
+#ifdef L_dyncall
+	SUBSPA_MILLI
+	ATTR_DATA
+GSYM($$dyncall)
+	.export $$dyncall,millicode
+	.proc
+	.callinfo	millicode
+	.entry
+	bb,>=,n %r22,30,LREF(1)		; branch if not plabel address
+	depi	0,31,2,%r22		; clear the two least significant bits
+	ldw	4(%r22),%r19		; load new LTP value
+	ldw	0(%r22),%r22		; load address of target
+LSYM(1)
+	bv	%r0(%r22)		; branch to the real target
+	stw	%r2,-24(%r30)		; save return address into frame marker
+	.exit
+	.procend
+#endif