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 } 40