| 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 | } |