1// SPDX-License-Identifier: GPL-2.0
2#include <linux/errno.h>
3#include <linux/sched.h>
4#include <linux/sched/task_stack.h>
5#include <linux/mm.h>
6#include <linux/smp.h>
7#include <linux/sem.h>
8#include <linux/msg.h>
9#include <linux/shm.h>
10#include <linux/stat.h>
11#include <linux/syscalls.h>
12#include <linux/mman.h>
13#include <linux/file.h>
14#include <linux/module.h>
15#include <linux/fs.h>
16#include <linux/ipc.h>
17#include <asm/cacheflush.h>
18#include <linux/uaccess.h>
19#include <asm/unistd.h>
20#include <asm/syscalls.h>
21
22/*
23 * sys_pipe() is the normal C calling standard for creating
24 * a pipe. It's not the way Unix traditionally does this, though.
25 */
26asmlinkage int sys_sh_pipe(void)
27{
28 int fd[2];
29 int error;
30
31 error = do_pipe_flags(fd, 0);
32 if (!error) {
33 current_pt_regs()->regs[1] = fd[1];
34 return fd[0];
35 }
36 return error;
37}
38
39asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf,
40 size_t count, long dummy, loff_t pos)
41{
42 return ksys_pread64(fd, buf, count, pos);
43}
44
45asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf,
46 size_t count, long dummy, loff_t pos)
47{
48 return ksys_pwrite64(fd, buf, count, pos);
49}
50
51asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
52 u32 len0, u32 len1, int advice)
53{
54#ifdef __LITTLE_ENDIAN__
55 return ksys_fadvise64_64(fd, offset: (u64)offset1 << 32 | offset0,
56 len: (u64)len1 << 32 | len0, advice);
57#else
58 return ksys_fadvise64_64(fd, (u64)offset0 << 32 | offset1,
59 (u64)len0 << 32 | len1, advice);
60#endif
61}
62

source code of linux/arch/sh/kernel/sys_sh32.c