1#include <linux/errno.h>
2#include <linux/sched.h>
3#include <linux/mm.h>
4#include <linux/smp.h>
5#include <linux/sem.h>
6#include <linux/msg.h>
7#include <linux/shm.h>
8#include <linux/stat.h>
9#include <linux/syscalls.h>
10#include <linux/mman.h>
11#include <linux/file.h>
12#include <linux/module.h>
13#include <linux/fs.h>
14#include <linux/ipc.h>
15#include <asm/cacheflush.h>
16#include <asm/uaccess.h>
17#include <asm/unistd.h>
18#include <asm/syscalls.h>
19
20
21
22
23
24asmlinkage int sys_sh_pipe(unsigned long r4, unsigned long r5,
25 unsigned long r6, unsigned long r7,
26 struct pt_regs __regs)
27{
28 struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
29 int fd[2];
30 int error;
31
32 error = do_pipe_flags(fd, 0);
33 if (!error) {
34 regs->regs[1] = fd[1];
35 return fd[0];
36 }
37 return error;
38}
39
40asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf,
41 size_t count, long dummy, loff_t pos)
42{
43 return sys_pread64(fd, buf, count, pos);
44}
45
46asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf,
47 size_t count, long dummy, loff_t pos)
48{
49 return sys_pwrite64(fd, buf, count, pos);
50}
51
52asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
53 u32 len0, u32 len1, int advice)
54{
55#ifdef __LITTLE_ENDIAN__
56 return sys_fadvise64_64(fd, (u64)offset1 << 32 | offset0,
57 (u64)len1 << 32 | len0, advice);
58#else
59 return sys_fadvise64_64(fd, (u64)offset0 << 32 | offset1,
60 (u64)len0 << 32 | len1, advice);
61#endif
62}
63
64#if defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH2A)
65#define SYSCALL_ARG3 "trapa #0x23"
66#else
67#define SYSCALL_ARG3 "trapa #0x13"
68#endif
69
70
71
72
73
74int kernel_execve(const char *filename,
75 const char *const argv[],
76 const char *const envp[])
77{
78 register long __sc0 __asm__ ("r3") = __NR_execve;
79 register long __sc4 __asm__ ("r4") = (long) filename;
80 register long __sc5 __asm__ ("r5") = (long) argv;
81 register long __sc6 __asm__ ("r6") = (long) envp;
82 __asm__ __volatile__ (SYSCALL_ARG3 : "=z" (__sc0)
83 : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6)
84 : "memory");
85 return __sc0;
86}
87