arch/arm64/include/asm/signal32.h

   1 /*
   2  * Copyright (C) 2012 ARM Ltd.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16 #ifndef __ASM_SIGNAL32_H
  17 #define __ASM_SIGNAL32_H
  18
  19 #ifdef __KERNEL__
  20 #ifdef CONFIG_COMPAT
  21 #include <linux/compat.h>
  22
  23 #define AARCH32_KERN_SIGRET_CODE_OFFSET 0x500
  24
  25 extern const compat_ulong_t aarch32_sigret_code[6];
  26
  27 int compat_setup_frame(int usig, struct k_sigaction *ka, sigset_t *set,
  28                        struct pt_regs *regs);
  29 int compat_setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
  30                           sigset_t *set, struct pt_regs *regs);
  31
  32 void compat_setup_restart_syscall(struct pt_regs *regs);
  33 #else
  34
  35 static inline int compat_setup_frame(int usid, struct k_sigaction *ka,
  36                                      sigset_t *set, struct pt_regs *regs)
  37 {
  38         return -ENOSYS;
  39 }
  40
  41 static inline int compat_setup_rt_frame(int usig, struct k_sigaction *ka,
  42                                         siginfo_t *info, sigset_t *set,
  43                                         struct pt_regs *regs)
  44 {
  45         return -ENOSYS;
  46 }
  47
  48 static inline void compat_setup_restart_syscall(struct pt_regs *regs)
  49 {
  50 }
  51 #endif /* CONFIG_COMPAT */
  52 #endif /* __KERNEL__ */
  53 #endif /* __ASM_SIGNAL32_H */