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Commit daf423db authored by Simon Horman's avatar Simon Horman Committed by Paul Mundt
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kdump: sh: parse elfcorehdr command line argument 



A quick cut and paste from other architectures to allow SH
to parse the elfcorehdr command line argument which is required
for both is_kdump_kernel() and vmcore to function.
(the former is as yet unused on SH).

Tested compilation only

Signed-off-by: default avatarSimon Horman <horms@verge.net.au>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 623fa579

arch/sh/kernel/setup.c

+20 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/smp.h>

#include <linux/err.h>

#include <linux/debugfs.h>

#include <linux/crash_dump.h>

#include <asm/uaccess.h>

#include <asm/io.h>

#include <asm/page.h>
@@ -286,6 +287,25 @@ static void __init setup_memory(void) 
extern void __init setup_memory(void);

#endif



/*

 * 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.

 */

#ifdef CONFIG_CRASH_DUMP

/* 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);

#endif



void __init setup_arch(char **cmdline_p)

{

	enable_mmu();