From: H. Peter Anvin <hpa@zytor.com>
Date: Wed, 6 May 2009 04:20:51 +0000 (-0700)
Subject: x86: add a Kconfig symbol for when relocations are needed
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=845adf7266a7ba6970bf982ffd96abc60d2018ab;p=linux-beck.git

x86: add a Kconfig symbol for when relocations are needed

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@zytor.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
---

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 039c3f04aac5..5aee45356b58 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1513,6 +1513,11 @@ 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