arch/h8300/include/asm/syscall.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_H8300_SYSCALLS_32_H
   3 #define __ASM_H8300_SYSCALLS_32_H
   4
   5 #ifdef __KERNEL__
   6
   7 #include <linux/compiler.h>
   8 #include <linux/linkage.h>
   9 #include <linux/types.h>
  10 #include <linux/ptrace.h>
  11
  12 static inline int
  13 syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
  14 {
  15         return regs->orig_er0;
  16 }
  17
  18 static inline void
  19 syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
  20                       unsigned int i, unsigned int n, unsigned long *args)
  21 {
  22         BUG_ON(i + n > 6);
  23
  24         while (n > 0) {
  25                 switch (i) {
  26                 case 0:
  27                         *args++ = regs->er1;
  28                         break;
  29                 case 1:
  30                         *args++ = regs->er2;
  31                         break;
  32                 case 2:
  33                         *args++ = regs->er3;
  34                         break;
  35                 case 3:
  36                         *args++ = regs->er4;
  37                         break;
  38                 case 4:
  39                         *args++ = regs->er5;
  40                         break;
  41                 case 5:
  42                         *args++ = regs->er6;
  43                         break;
  44                 }
  45                 i++;
  46                 n--;
  47         }
  48 }
  49
  50
  51
  52 /* Misc syscall related bits */
  53 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
  54 asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
  55
  56 #endif /* __KERNEL__ */
  57 #endif /* __ASM_H8300_SYSCALLS_32_H */