| Steven J. Hill | 3070033 | 2012-05-30 21:02:49 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. |
| 7 | */ |
| 8 | #include <linux/init.h> |
| 9 | #include <linux/string.h> |
| 10 | |
| 11 | #include <asm/bootinfo.h> |
| 12 | |
| 13 | extern int prom_argc; |
| 14 | extern int *_prom_argv; |
| 15 | |
| 16 | /* |
| 17 | * YAMON (32-bit PROM) pass arguments and environment as 32-bit pointer. |
| 18 | * This macro take care of sign extension. |
| 19 | */ |
| 20 | #define prom_argv(index) ((char *)(long)_prom_argv[(index)]) |
| 21 | |
| 22 | char * __init prom_getcmdline(void) |
| 23 | { |
| 24 | return &(arcs_cmdline[0]); |
| 25 | } |
| 26 | |
| 27 | void __init prom_init_cmdline(void) |
| 28 | { |
| 29 | char *cp; |
| 30 | int actr; |
| 31 | |
| 32 | actr = 1; /* Always ignore argv[0] */ |
| 33 | |
| 34 | cp = &(arcs_cmdline[0]); |
| 35 | while (actr < prom_argc) { |
| 36 | strcpy(cp, prom_argv(actr)); |
| 37 | cp += strlen(prom_argv(actr)); |
| 38 | *cp++ = ' '; |
| 39 | actr++; |
| 40 | } |
| 41 | if (cp != &(arcs_cmdline[0])) { |
| 42 | /* get rid of trailing space */ |
| 43 | --cp; |
| 44 | *cp = '\0'; |
| 45 | } |
| 46 | } |