58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* Copyright (C) 1991, 1992 Linus Torvalds
|
|
* Copyright (C) 1994 - 2000 Ralf Baechle
|
|
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
|
|
*/
|
|
|
|
#ifndef __SIGNAL_COMMON_H
|
|
#define __SIGNAL_COMMON_H
|
|
|
|
/* #define DEBUG_SIG */
|
|
|
|
#ifdef DEBUG_SIG
|
|
# define DEBUGP(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ##args)
|
|
#else
|
|
# define DEBUGP(fmt, args...)
|
|
#endif
|
|
|
|
/*
|
|
* Horribly complicated - with the bloody RM9000 workarounds enabled
|
|
* the signal trampolines is moving to the end of the structure so we can
|
|
* increase the alignment without breaking software compatibility.
|
|
*/
|
|
#if ICACHE_REFILLS_WORKAROUND_WAR == 0
|
|
|
|
struct sigframe {
|
|
u32 sf_ass[4]; /* argument save space for o32 */
|
|
u32 sf_code[2]; /* signal trampoline */
|
|
struct sigcontext sf_sc;
|
|
sigset_t sf_mask;
|
|
};
|
|
|
|
#else /* ICACHE_REFILLS_WORKAROUND_WAR */
|
|
|
|
struct sigframe {
|
|
u32 sf_ass[4]; /* argument save space for o32 */
|
|
u32 sf_pad[2];
|
|
struct sigcontext sf_sc; /* hw context */
|
|
sigset_t sf_mask;
|
|
u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
|
|
};
|
|
|
|
#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */
|
|
|
|
/*
|
|
* Determine which stack to use..
|
|
*/
|
|
extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
|
|
size_t frame_size);
|
|
/*
|
|
* install trampoline code to get back from the sig handler
|
|
*/
|
|
extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall);
|
|
|
|
#endif /* __SIGNAL_COMMON_H */
|