diff options
author | Paul Mundt <lethal@linux-sh.org> | 2010-05-07 17:58:55 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2010-05-07 17:58:55 +0900 |
commit | 7aed3b34fb0a98e89d0e999f5833ceebdb3876b9 (patch) | |
tree | dbf3eb56fe9ad5a42523d1f207443d8ef3fdae78 /arch/sh/kernel/crash_dump.c | |
parent | aa424bbb8cf5f7f3c6a70065bcb28a6e6af7897d (diff) | |
download | linux-7aed3b34fb0a98e89d0e999f5833ceebdb3876b9.tar.bz2 |
sh: shuffle the elfcorehdr handling over to the crash dump code.
The elfcorehdr parsing was just tossed in setup.c, but nothing outside of
the crash dump code/vmcore bits require it, so we just move it out of the
way, as per ppc.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/crash_dump.c')
-rw-r--r-- | arch/sh/kernel/crash_dump.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/sh/kernel/crash_dump.c b/arch/sh/kernel/crash_dump.c index 95d216255565..37c97d444576 100644 --- a/arch/sh/kernel/crash_dump.c +++ b/arch/sh/kernel/crash_dump.c @@ -4,7 +4,6 @@ * Created by: Hariprasad Nellitheertha (hari@in.ibm.com) * Copyright (C) IBM Corporation, 2004. All rights reserved */ - #include <linux/errno.h> #include <linux/crash_dump.h> #include <linux/io.h> @@ -13,6 +12,25 @@ /* Stores the physical address of elf header of crash image. */ unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; +/* + * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by + * is_kdump_kernel() to determine if we are booting after a panic. Hence + * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE. + * + * elfcorehdr= specifies the location of elf core header + * stored by the crashed kernel. + */ +static int __init parse_elfcorehdr(char *arg) +{ + if (!arg) + return -EINVAL; + + elfcorehdr_addr = memparse(arg, &arg); + + return 0; +} +early_param("elfcorehdr", parse_elfcorehdr); + /** * copy_oldmem_page - copy one page from "oldmem" * @pfn: page frame number to be copied |