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[IA64] CONFIG_KEXEC/CONFIG_CRASH_DUMP permutations

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Actually, on reflection I think that there is a good case for
keeping the options separate. I am thinking particularly of people
who want a very small crashdump kernel and thus don't want to compile
in kexec.

The patch below should fix things up so that all valid combinations of
KEXEC, CRASH_DUMP and VMCORE compile cleanly - VMCORE depends on
CRASH_DUMP which is why I said valid combinations. In a nutshell
it just untangles unrelated code and switches around a few defines.

Please note that it creats a new file, arch/ia64/kernel/crash_dump.c
This is in keeping with the i386 implementation.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Horms
2006-12-12 17:49:03 +09:00
committed by Tony Luck
parent adf142e379
commit 45a98fc622
7 changed files with 73 additions and 25 deletions
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15
arch/ia64/kernel/setup.c
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@@ -434,6 +434,21 @@ static __init int setup_nomca(char *s)
}
early_param("nomca", setup_nomca);
#ifdef 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);
#endif /* CONFIG_PROC_VMCORE */
void __init
setup_arch (char **cmdline_p)
{