Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Paul Mundt | bcb28e4 | 2007-11-20 15:50:59 +0900 | [diff] [blame] | 2 | * arch/sh/kernel/sys_sh64.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | * |
Paul Mundt | bcb28e4 | 2007-11-20 15:50:59 +0900 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/errno.h> |
| 15 | #include <linux/rwsem.h> |
| 16 | #include <linux/sched.h> |
| 17 | #include <linux/mm.h> |
Paul Mundt | 78d9827 | 2007-07-31 13:03:02 +0900 | [diff] [blame] | 18 | #include <linux/fs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <linux/smp.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
| 26 | #include <linux/utsname.h> |
| 27 | #include <linux/syscalls.h> |
Adrian Bunk | cba4fbb | 2007-10-16 23:29:24 -0700 | [diff] [blame] | 28 | #include <linux/ipc.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <asm/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <asm/ptrace.h> |
Arnd Bergmann | fe74290 | 2006-10-02 02:18:34 -0700 | [diff] [blame] | 31 | #include <asm/unistd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | /* |
Arnd Bergmann | fe74290 | 2006-10-02 02:18:34 -0700 | [diff] [blame] | 34 | * Do a system call from kernel instead of calling sys_execve so we |
| 35 | * end up with proper pt_regs. |
| 36 | */ |
| 37 | int kernel_execve(const char *filename, char *const argv[], char *const envp[]) |
| 38 | { |
| 39 | register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_execve); |
| 40 | register unsigned long __sc2 __asm__ ("r2") = (unsigned long) filename; |
| 41 | register unsigned long __sc3 __asm__ ("r3") = (unsigned long) argv; |
| 42 | register unsigned long __sc4 __asm__ ("r4") = (unsigned long) envp; |
| 43 | __asm__ __volatile__ ("trapa %1 !\t\t\t execve(%2,%3,%4)" |
| 44 | : "=r" (__sc0) |
| 45 | : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) ); |
| 46 | __asm__ __volatile__ ("!dummy %0 %1 %2 %3" |
| 47 | : : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) : "memory"); |
| 48 | return __sc0; |
| 49 | } |