LXR linux/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
  25extern const compat_ulong_t aarch32_sigret_code[6];
  26
  27int compat_setup_frame(int usig, struct ksignal *ksig, sigset_t *set,
  28                       struct pt_regs *regs);
  29int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
  30                          struct pt_regs *regs);
  31
  32void compat_setup_restart_syscall(struct pt_regs *regs);
  33#else
  34
  35static inline int compat_setup_frame(int usid, struct ksignal *ksig,
  36                                     sigset_t *set, struct pt_regs *regs)
  37{
  38        return -ENOSYS;
  39}
  40
  41static inline int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
  42                                        struct pt_regs *regs)
  43{
  44        return -ENOSYS;
  45}
  46
  47static inline void compat_setup_restart_syscall(struct pt_regs *regs)
  48{
  49}
  50#endif /* CONFIG_COMPAT */
  51#endif /* __KERNEL__ */
  52#endif /* __ASM_SIGNAL32_H */
  53