| /* $Id: bootstr.c,v 1.6 1999/08/31 06:55:01 davem Exp $ |
| * bootstr.c: Boot string/argument acquisition from the PROM. |
| * |
| * Copyright(C) 1995 David S. Miller (davem@caip.rutgers.edu) |
| * Copyright(C) 1996,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
| */ |
| |
| #include <linux/string.h> |
| #include <linux/init.h> |
| #include <asm/oplib.h> |
| |
| /* WARNING: The boot loader knows that these next three variables come one right |
| * after another in the .data section. Do not move this stuff into |
| * the .bss section or it will break things. |
| */ |
| |
| #define BARG_LEN 256 |
| int bootstr_len = BARG_LEN; |
| static int bootstr_valid = 0; |
| static char bootstr_buf[BARG_LEN] = { 0 }; |
| |
| char * __init |
| prom_getbootargs(void) |
| { |
| /* This check saves us from a panic when bootfd patches args. */ |
| if (bootstr_valid) return bootstr_buf; |
| prom_getstring(prom_chosen_node, "bootargs", bootstr_buf, BARG_LEN); |
| bootstr_valid = 1; |
| return bootstr_buf; |
| } |
