xref: /openbmc/linux/arch/powerpc/kernel/signal.h (revision 22246614)
1 /*
2  *    Copyright (c) 2007 Benjamin Herrenschmidt, IBM Coproration
3  *    Extracted from signal_32.c and signal_64.c
4  *
5  * This file is subject to the terms and conditions of the GNU General
6  * Public License.  See the file README.legal in the main directory of
7  * this archive for more details.
8  */
9 
10 #ifndef _POWERPC_ARCH_SIGNAL_H
11 #define _POWERPC_ARCH_SIGNAL_H
12 
13 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
14 
15 extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
16 				  size_t frame_size);
17 extern void restore_sigmask(sigset_t *set);
18 
19 extern int handle_signal32(unsigned long sig, struct k_sigaction *ka,
20 			   siginfo_t *info, sigset_t *oldset,
21 			   struct pt_regs *regs);
22 
23 extern int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
24 			      siginfo_t *info, sigset_t *oldset,
25 			      struct pt_regs *regs);
26 
27 
28 #ifdef CONFIG_PPC64
29 
30 static inline int is_32bit_task(void)
31 {
32 	return test_thread_flag(TIF_32BIT);
33 }
34 
35 extern int handle_rt_signal64(int signr, struct k_sigaction *ka,
36 			      siginfo_t *info, sigset_t *set,
37 			      struct pt_regs *regs);
38 
39 #else /* CONFIG_PPC64 */
40 
41 static inline int is_32bit_task(void)
42 {
43 	return 1;
44 }
45 
46 static inline int handle_rt_signal64(int signr, struct k_sigaction *ka,
47 				     siginfo_t *info, sigset_t *set,
48 				     struct pt_regs *regs)
49 {
50 	return -EFAULT;
51 }
52 
53 #endif /* !defined(CONFIG_PPC64) */
54 
55 #endif  /* _POWERPC_ARCH_SIGNAL_H */
56