Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * 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

#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))

/*

 * 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);

/* Check and clear pending FPU exceptions in saved CSR */

extern int fpcsr_pending(unsigned int __user *fpcsr);

/* Make sure we will not lose FPU ownership */

#ifdef CONFIG_PREEMPT

#define lock_fpu_owner()        preempt_disable()

#define unlock_fpu_owner()      preempt_enable()

#else

#define lock_fpu_owner()        pagefault_disable()

#define unlock_fpu_owner()      pagefault_enable()

#endif

#endif  /* __SIGNAL_COMMON_H */