nios2: Signal handling support

This patch adds support for signal handling.

Signed-off-by: Ley Foon Tan <lftan@altera.com>

diff --git a/arch/nios2/include/asm/signal.h b/arch/nios2/include/asm/signal.h
new file mode 100644 (file)
index 0000000..bbcf11e
--- /dev/null
+++ b/arch/nios2/include/asm/signal.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright Altera Corporation (C) 2013. All rights reserved
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#ifndef _NIOS2_SIGNAL_H
+#define _NIOS2_SIGNAL_H
+
+#include <uapi/asm/signal.h>
+
+#endif /* _NIOS2_SIGNAL_H */

diff --git a/arch/nios2/include/asm/ucontext.h b/arch/nios2/include/asm/ucontext.h
new file mode 100644 (file)
index 0000000..2c87614
--- /dev/null
+++ b/arch/nios2/include/asm/ucontext.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
+ * Copyright (C) 2004 Microtronix Datacom Ltd
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_NIOS2_UCONTEXT_H
+#define _ASM_NIOS2_UCONTEXT_H
+
+typedef int greg_t;
+#define NGREG 32
+typedef greg_t gregset_t[NGREG];
+
+struct mcontext {
+       int version;
+       gregset_t gregs;
+};
+
+#define MCONTEXT_VERSION 2
+
+struct ucontext {
+       unsigned long     uc_flags;
+       struct ucontext  *uc_link;
+       stack_t           uc_stack;
+       struct mcontext   uc_mcontext;
+       sigset_t          uc_sigmask;   /* mask last for extensibility */
+};
+
+#endif

diff --cc arch/nios2/include/uapi/asm/sigcontext.h
Simple merge

diff --cc arch/nios2/include/uapi/asm/signal.h
Simple merge

diff --cc arch/nios2/kernel/signal.c
Simple merge