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No need to clear BSS if running kernel is loaded by the native bootloader.

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This commit is contained in:
tsutsui 2007-07-03 10:07:27 +00:00
parent c6f6d9c3c9
commit 23e3926bbd
1 changed files with 11 additions and 7 deletions
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18
sys/arch/newsmips/newsmips/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.93 2007/07/03 09:55:30 tsutsui Exp $ */
/* $NetBSD: machdep.c,v 1.94 2007/07/03 10:07:27 tsutsui Exp $ */
/*
* Copyright (c) 1992, 1993
@ -76,7 +76,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.93 2007/07/03 09:55:30 tsutsui Exp $");
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.94 2007/07/03 10:07:27 tsutsui Exp $");
/* from: Utah Hdr: machdep.c 1.63 91/04/24 */
@ -256,11 +256,6 @@ mach_init(int x_boothowto, int x_bootdev, int x_bootname, int x_maxmem)
#endif
bi_arg = NULL;
/* clear the BSS segment */
memset(edata, 0, end - edata);
systype = NEWS3400; /* XXX compatibility */
bootinfo = (void *)BOOTINFO_ADDR; /* XXX */
bi_magic = lookup_bootinfo(BTINFO_MAGIC);
if (bi_magic && bi_magic->magic == BOOTINFO_MAGIC) {
@ -282,8 +277,17 @@ mach_init(int x_boothowto, int x_bootdev, int x_bootname, int x_maxmem)
bi_systype = lookup_bootinfo(BTINFO_SYSTYPE);
if (bi_systype)
systype = bi_systype->type;
} else {
/*
* Running kernel is loaded by non-native loader;
* clear the BSS segment here.
*/
memset(edata, 0, end - edata);
}
if (systype == 0)
systype = NEWS3400; /* XXX compatibility for old boot */
#ifdef news5000
if (systype == NEWS5000) {
int i;