From: Simon Horman <horms@verge.net.au>
To: linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
linux-sh@vger.kernel.org
Cc: Paul Mundt <lethal@linux-sh.org>, Vivek Goyal <vgoyal@redhat.com>
Subject: [patch] kdump: sh: parse elfcorehdr command line argument
Date: Wed, 30 Jul 2008 10:29:39 +1000 [thread overview]
Message-ID: <20080730002937.GA21998@verge.net.au> (raw)
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: Simon Horman <horms@verge.net.au>
Index: linux-2.6/arch/sh/kernel/setup.c
===================================================================
--- linux-2.6.orig/arch/sh/kernel/setup.c 2008-07-30 09:33:45.000000000 +1000
+++ linux-2.6/arch/sh/kernel/setup.c 2008-07-30 09:37:45.000000000 +1000
@@ -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();
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WARNING: multiple messages have this Message-ID (diff)
From: Simon Horman <horms@verge.net.au>
To: linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
linux-sh@vger.kernel.org
Cc: Vivek Goyal <vgoyal@redhat.com>, Paul Mundt <lethal@linux-sh.org>
Subject: [patch] kdump: sh: parse elfcorehdr command line argument
Date: Wed, 30 Jul 2008 00:29:39 +0000 [thread overview]
Message-ID: <20080730002937.GA21998@verge.net.au> (raw)
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: Simon Horman <horms@verge.net.au>
Index: linux-2.6/arch/sh/kernel/setup.c
=================================--- linux-2.6.orig/arch/sh/kernel/setup.c 2008-07-30 09:33:45.000000000 +1000
+++ linux-2.6/arch/sh/kernel/setup.c 2008-07-30 09:37:45.000000000 +1000
@@ -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();
WARNING: multiple messages have this Message-ID (diff)
From: Simon Horman <horms@verge.net.au>
To: linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
linux-sh@vger.kernel.org
Cc: Vivek Goyal <vgoyal@redhat.com>, Paul Mundt <lethal@linux-sh.org>
Subject: [patch] kdump: sh: parse elfcorehdr command line argument
Date: Wed, 30 Jul 2008 10:29:39 +1000 [thread overview]
Message-ID: <20080730002937.GA21998@verge.net.au> (raw)
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: Simon Horman <horms@verge.net.au>
Index: linux-2.6/arch/sh/kernel/setup.c
===================================================================
--- linux-2.6.orig/arch/sh/kernel/setup.c 2008-07-30 09:33:45.000000000 +1000
+++ linux-2.6/arch/sh/kernel/setup.c 2008-07-30 09:37:45.000000000 +1000
@@ -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();
next reply other threads:[~2008-07-30 0:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-30 0:29 Simon Horman [this message]
2008-07-30 0:29 ` [patch] kdump: sh: parse elfcorehdr command line argument Simon Horman
2008-07-30 0:29 ` Simon Horman
2008-07-30 1:13 ` Paul Mundt
2008-07-30 1:13 ` Paul Mundt
2008-07-30 1:13 ` Paul Mundt
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