Add the __cerror asm bits for per-thread errno support for hppa.

ok guenther@

1 files changed, 33 insertions, 0 deletions

diff --git a/lib/librthread/arch/hppa/cerror.S b/lib/librthread/arch/hppa/cerror.S
new file mode 100644
index 00000000000..ec11eae73d9
--- /dev/null
+++ b/lib/librthread/arch/hppa/cerror.S
@@ -0,0 +1,33 @@
+/*	$OpenBSD: cerror.S,v 1.1 2011/11/08 15:56:52 kettenis Exp $	*/
+
+/*
+ * Copyright (c) 2011 Mark Kettenis
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "SYS.h"
+
+#define ERRNOPTR_OFFSET	16
+
+ENTRY(__cerror,0)
+	mfctl	cr27, r1
+	ldw	4(r1), r1
+	ldw	ERRNOPTR_OFFSET(r1), r1
+	stw	t1, 0(r1)
+	ldi	-1, ret0
+	bv	r0(rp)
+	ldi	-1, ret1
+EXIT(__cerror)
+
+	.end