projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b920de1b DH |
1 | /* MN10300 In-kernel program execution |
| 2 | * | |
| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
| 4 | * Written by David Howells (dhowells@redhat.com) | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public Licence | |
| 8 | * as published by the Free Software Foundation; either version | |
| 9 | * 2 of the Licence, or (at your option) any later version. | |
| 10 | */ | |
| 11 | #include <linux/linkage.h> | |
| 12 | #include <asm/unistd.h> | |
| 13 | ||
| 14 | ############################################################################### | |
| 15 | # | |
| 16 | # Do a system call from kernel instead of calling sys_execve so we end up with | |
| 17 | # proper pt_regs. | |
| 18 | # | |
| 19 | # int kernel_execve(const char *filename, char *const argv[], | |
| 20 | # char *const envp[]) | |
| 21 | # | |
| 22 | # On entry: D0/D1/8(SP): arguments to function | |
| 23 | # On return: D0: syscall return. | |
| 24 | # | |
| 25 | ############################################################################### | |
| 26 | .globl kernel_execve | |
| 27 | .type kernel_execve,@function | |
| 28 | kernel_execve: | |
| 29 | mov a3,a1 | |
| 30 | mov d0,a0 | |
| 31 | mov (12,sp),a3 | |
| 32 | mov +__NR_execve,d0 | |
| 33 | syscall 0 | |
| 34 | mov a1,a3 | |
| 35 | rets | |
| 36 | ||
| 37 | .size kernel_execve,.-kernel_execve |