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authorJonas Bonn <jonas@southpole.se>2011-06-04 21:38:59 +0300
committerJonas Bonn <jonas@southpole.se>2011-07-22 18:46:29 +0200
commitac689eb7f9d4e270d1365853b82eece669387e2c (patch)
treea162b2fe1a3211718e095bd106b2f005e1380b3f /arch/openrisc/include
parent61e85e367535a7b6385b404bef93928768140f96 (diff)
OpenRISC: Signal handling
Signed-off-by: Jonas Bonn <jonas@southpole.se> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/openrisc/include')
-rw-r--r--arch/openrisc/include/asm/sigcontext.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/sigcontext.h b/arch/openrisc/include/asm/sigcontext.h
new file mode 100644
index 00000000000..54a5c50132e
--- /dev/null
+++ b/arch/openrisc/include/asm/sigcontext.h
@@ -0,0 +1,38 @@
+/*
+ * OpenRISC Linux
+ *
+ * Linux architectural port borrowing liberally from similar works of
+ * others. All original copyrights apply as per the original source
+ * declaration.
+ *
+ * OpenRISC implementation:
+ * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ * et al.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __ASM_OPENRISC_SIGCONTEXT_H
+#define __ASM_OPENRISC_SIGCONTEXT_H
+
+#include <asm/ptrace.h>
+
+/* This struct is saved by setup_frame in signal.c, to keep the current
+ context while a signal handler is executed. It's restored by sys_sigreturn.
+
+ To keep things simple, we use pt_regs here even though normally you just
+ specify the list of regs to save. Then we can use copy_from_user on the
+ entire regs instead of a bunch of get_user's as well...
+*/
+
+struct sigcontext {
+ struct pt_regs regs; /* needs to be first */
+ unsigned long oldmask;
+ unsigned long usp; /* usp before stacking this gunk on it */
+};
+
+#endif /* __ASM_OPENRISC_SIGCONTEXT_H */