// SPDX-License-Identifier: GPL-2.0#include <linux/errno.h>#include <linux/sched.h>#include <linux/sched/task_stack.h>#include <linux/mm.h>#include <linux/smp.h>#include <linux/sem.h>#include <linux/msg.h>#include <linux/shm.h>#include <linux/stat.h>#include <linux/syscalls.h>#include <linux/mman.h>#include <linux/file.h>#include <linux/module.h>#include <linux/fs.h>#include <linux/ipc.h>#include <asm/cacheflush.h>#include <linux/uaccess.h>#include <asm/unistd.h>#include <asm/syscalls.h> /* * sys_pipe() is the normal C calling standard for creating * a pipe. It's not the way Unix traditionally does this, though. */asmlinkage int sys_sh_pipe(void){	int fd[2];	int error; 	error = do_pipe_flags(fd, 0);	if (!error) {		current_pt_regs()->regs[1] = fd[1];		return fd[0];	}	return error;} asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf,			     size_t count, long dummy, loff_t pos){	return ksys_pread64(fd, buf, count, pos);} asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf,			      size_t count, long dummy, loff_t pos){	return ksys_pwrite64(fd, buf, count, pos);} asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,				u32 len0, u32 len1, int advice){#ifdef  __LITTLE_ENDIAN__	return ksys_fadvise64_64(fd, (u64)offset1 << 32 | offset0,				 (u64)len1 << 32 | len0, advice);#else	return ksys_fadvise64_64(fd, (u64)offset0 << 32 | offset1,				 (u64)len0 << 32 | len1, advice);#endif} /* * swap the arguments the way that libc wants them instead of * moving flags ahead of the 64-bit nbytes argument */SYSCALL_DEFINE6(sh_sync_file_range6, int, fd, SC_ARG64(offset),                SC_ARG64(nbytes), unsigned int, flags){        return ksys_sync_file_range(fd, SC_VAL64(loff_t, offset),                                    SC_VAL64(loff_t, nbytes), flags);}