arch/sh/kernel/sys_sh32.c

   1 #include <linux/errno.h>
   2 #include <linux/sched.h>
   3 #include <linux/sched/task_stack.h>
   4 #include <linux/mm.h>
   5 #include <linux/smp.h>
   6 #include <linux/sem.h>
   7 #include <linux/msg.h>
   8 #include <linux/shm.h>
   9 #include <linux/stat.h>
  10 #include <linux/syscalls.h>
  11 #include <linux/mman.h>
  12 #include <linux/file.h>
  13 #include <linux/module.h>
  14 #include <linux/fs.h>
  15 #include <linux/ipc.h>
  16 #include <asm/cacheflush.h>
  17 #include <linux/uaccess.h>
  18 #include <asm/unistd.h>
  19 #include <asm/syscalls.h>
  20
  21 /*
  22  * sys_pipe() is the normal C calling standard for creating
  23  * a pipe. It's not the way Unix traditionally does this, though.
  24  */
  25 asmlinkage int sys_sh_pipe(void)
  26 {
  27         int fd[2];
  28         int error;
  29
  30         error = do_pipe_flags(fd, 0);
  31         if (!error) {
  32                 current_pt_regs()->regs[1] = fd[1];
  33                 return fd[0];
  34         }
  35         return error;
  36 }
  37
  38 asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf,
  39                              size_t count, long dummy, loff_t pos)
  40 {
  41         return sys_pread64(fd, buf, count, pos);
  42 }
  43
  44 asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf,
  45                               size_t count, long dummy, loff_t pos)
  46 {
  47         return sys_pwrite64(fd, buf, count, pos);
  48 }
  49
  50 asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
  51                                 u32 len0, u32 len1, int advice)
  52 {
  53 #ifdef  __LITTLE_ENDIAN__
  54         return sys_fadvise64_64(fd, (u64)offset1 << 32 | offset0,
  55                                 (u64)len1 << 32 | len0, advice);
  56 #else
  57         return sys_fadvise64_64(fd, (u64)offset0 << 32 | offset1,
  58                                 (u64)len0 << 32 | len1, advice);
  59 #endif
  60 }