Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * cmdline.c: read the command line passed to us by the PROM. |
| 3 | * |
| 4 | * Copyright (C) 1998 Harald Koerfgen |
| 5 | * Copyright (C) 2002, 2004 Maciej W. Rozycki |
| 6 | */ |
| 7 | #include <linux/init.h> |
| 8 | #include <linux/kernel.h> |
| 9 | #include <linux/string.h> |
| 10 | #include <linux/types.h> |
| 11 | |
| 12 | #include <asm/bootinfo.h> |
| 13 | #include <asm/dec/prom.h> |
| 14 | |
| 15 | #undef PROM_DEBUG |
| 16 | |
| 17 | void __init prom_init_cmdline(s32 argc, s32 *argv, u32 magic) |
| 18 | { |
| 19 | char *arg; |
| 20 | int start_arg, i; |
| 21 | |
| 22 | /* |
| 23 | * collect args and prepare cmd_line |
| 24 | */ |
| 25 | if (!prom_is_rex(magic)) |
| 26 | start_arg = 1; |
| 27 | else |
| 28 | start_arg = 2; |
| 29 | for (i = start_arg; i < argc; i++) { |
| 30 | arg = (void *)(long)(argv[i]); |
| 31 | strcat(arcs_cmdline, arg); |
| 32 | if (i < (argc - 1)) |
| 33 | strcat(arcs_cmdline, " "); |
| 34 | } |
| 35 | |
| 36 | #ifdef PROM_DEBUG |
| 37 | printk("arcs_cmdline: %s\n", &(arcs_cmdline[0])); |
| 38 | #endif |
| 39 | } |