blob: ba3143a1b37539b37e74f951e6f32be907ecd7f7 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
* Amit Bhor, Sameer Dhavale: Codito Technologies 2004
* This is much needed for ARC sigreturn optimization.
* This allows uClibc to piggback the addr of a sigreturn stub in sigaction,
* which allows sigreturn based re-entry into kernel after handling signal.
* W/o this kernel needs to "synthesize" the sigreturn trampoline on user
* mode stack which in turn forces the following:
* -TLB Flush (after making the stack page executable)
* -Cache line Flush (to make I/D Cache lines coherent)
#define SA_RESTORER 0x04000000
#include <asm-generic/signal.h>
#endif /* _ASM_ARC_SIGNAL_H */