Commit | Line | Data |
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1da177e4 | 1 | /* |
bcb28e42 | 2 | * arch/sh/kernel/sys_sh64.c |
1da177e4 LT |
3 | * |
4 | * Copyright (C) 2000, 2001 Paolo Alberelli | |
5 | * | |
6 | * This file contains various random system calls that | |
7 | * have a non-standard calling sequence on the Linux/SH5 | |
8 | * platform. | |
9 | * | |
bcb28e42 PM |
10 | * This file is subject to the terms and conditions of the GNU General Public |
11 | * License. See the file "COPYING" in the main directory of this archive | |
12 | * for more details. | |
1da177e4 | 13 | */ |
1da177e4 LT |
14 | #include <linux/errno.h> |
15 | #include <linux/rwsem.h> | |
16 | #include <linux/sched.h> | |
17 | #include <linux/mm.h> | |
78d98277 | 18 | #include <linux/fs.h> |
1da177e4 | 19 | #include <linux/smp.h> |
1da177e4 LT |
20 | #include <linux/sem.h> |
21 | #include <linux/msg.h> | |
22 | #include <linux/shm.h> | |
23 | #include <linux/stat.h> | |
24 | #include <linux/mman.h> | |
25 | #include <linux/file.h> | |
1da177e4 | 26 | #include <linux/syscalls.h> |
cba4fbbf | 27 | #include <linux/ipc.h> |
1da177e4 | 28 | #include <asm/uaccess.h> |
1da177e4 | 29 | #include <asm/ptrace.h> |
fe74290d | 30 | #include <asm/unistd.h> |
1da177e4 | 31 | |
fe74290d AB |
32 | /* |
33 | * Do a system call from kernel instead of calling sys_execve so we | |
34 | * end up with proper pt_regs. | |
35 | */ | |
36 | int kernel_execve(const char *filename, char *const argv[], char *const envp[]) | |
37 | { | |
38 | register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_execve); | |
39 | register unsigned long __sc2 __asm__ ("r2") = (unsigned long) filename; | |
40 | register unsigned long __sc3 __asm__ ("r3") = (unsigned long) argv; | |
41 | register unsigned long __sc4 __asm__ ("r4") = (unsigned long) envp; | |
42 | __asm__ __volatile__ ("trapa %1 !\t\t\t execve(%2,%3,%4)" | |
43 | : "=r" (__sc0) | |
44 | : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) ); | |
45 | __asm__ __volatile__ ("!dummy %0 %1 %2 %3" | |
46 | : : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) : "memory"); | |
47 | return __sc0; | |
48 | } |