mirror of https://gitee.com/openkylin/linux.git
47 lines
1.3 KiB
C
47 lines
1.3 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, __func__, ##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 */
|