arch/powerpc/kernel/signal.h

   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 */