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Message-Id: <1241735222-6640-7-git-send-email-hpa@linux.intel.com>
Date: Thu, 7 May 2009 15:26:54 -0700
From: "H. Peter Anvin" <hpa@...ux.intel.com>
To: linux-kernel@...r.kernel.org
Cc: vgoyal@...hat.com, hbabu@...ibm.com, kexec@...ts.infradead.org,
ying.huang@...el.com, mingo@...e.hu, tglx@...utronix.de,
ebiederm@...ssion.com, sam@...nborg.org,
"H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH 06/14] x86: add a Kconfig symbol for when relocations are needed
From: H. Peter Anvin <hpa@...or.com>
We only need to build relocations when we are building a 32-bit
relocatable kernel. Rather than unnecessarily complicating the
Makefiles, make an explicit Kbuild symbol for this.
[ Impact: permits future cleanup ]
Signed-off-by: H. Peter Anvin <hpa@...or.com>
Cc: Sam Ravnborg <sam@...nborg.org>
---
arch/x86/Kconfig | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 13b3a5a..cd76de1 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1516,6 +1516,11 @@ config RELOCATABLE
it has been loaded at and the compile time physical address
(CONFIG_PHYSICAL_START) is ignored.
+# Relocation on x86-32 needs some additional build support
+config X86_NEED_RELOCS
+ def_bool y
+ depends on X86_32 && RELOCATABLE
+
config PHYSICAL_ALIGN
hex
prompt "Alignment value to which kernel should be aligned" if X86_32
--
1.6.0.6
--
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