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 int compat_setup_frame(int usig, struct ksignal *ksig, sigset_t *set,
  26                        struct pt_regs *regs);
  27 int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
  28                           struct pt_regs *regs);
  29
  30 void compat_setup_restart_syscall(struct pt_regs *regs);
  31 #else
  32
  33 static inline int compat_setup_frame(int usid, struct ksignal *ksig,
  34                                      sigset_t *set, struct pt_regs *regs)
  35 {
  36         return -ENOSYS;
  37 }
  38
  39 static inline int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
  40                                         struct pt_regs *regs)
  41 {
  42         return -ENOSYS;
  43 }
  44
  45 static inline void compat_setup_restart_syscall(struct pt_regs *regs)
  46 {
  47 }
  48 #endif /* CONFIG_COMPAT */
  49 #endif /* __KERNEL__ */
  50 #endif /* __ASM_SIGNAL32_H */