From: Chris Zankel <chris@zankel.net>
Date: Sun, 2 May 2010 08:00:22 +0000 (-0700)
Subject: xtensa: Add -mforce-no-pic option is supported
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=cf1c0aaf816ecc90106d997c0af3f7cdde6c2a71;p=deliverable%2Flinux.git

xtensa: Add -mforce-no-pic option is supported

GCC is configured to always compile with PIC enabled for the Xtensa
architecture. This fails when nfsroot is enabled as the code uses a
non-conformant segment that mismatches in permissione with a read-only
segment.
A patch has been submitted to GCC to add the machine-option 'force-no-pic'
that disables PIC.

Signed-off-by: Chris Zankel <chris@zankel.net>
---

diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
index 4caffac3ca2e..7608559de93a 100644
--- a/arch/xtensa/Makefile
+++ b/arch/xtensa/Makefile
@@ -35,6 +35,8 @@ KBUILD_CFLAGS += -ffreestanding
 
 KBUILD_CFLAGS += -pipe -mlongcalls
 
+KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
+
 vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
 plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))