Patch "kbuild: add -fno-PIE" has been added to the 4.8-stable tree

Patch "kbuild: add -fno-PIE" has been added to the 4.8-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    kbuild: add -fno-PIE

to the 4.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     kbuild-add-fno-pie.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 8ae94224c9d72fc4d9aaac93b2d7833cf46d7141 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 4 Nov 2016 19:39:38 +0100
Subject: kbuild: add -fno-PIE
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

commit 8ae94224c9d72fc4d9aaac93b2d7833cf46d7141 upstream.

Debian started to build the gcc with -fPIE by default so the kernel
build ends before it starts properly with:
|kernel/bounds.c:1:0: error: code model kernel does not support PIC mode

Also add to KBUILD_AFLAGS due to:

|gcc -Wp,-MD,arch/x86/entry/vdso/vdso32/.note.o.d … -mfentry -DCC_USING_FENTRY … vdso/vdso32/note.S
|arch/x86/entry/vdso/vdso32/note.S:1:0: sorry, unimplemented: -mfentry isn’t supported for 32-bit in combination with -fpic

Tagging it stable so it is possible to compile recent stable kernels as
well.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Michal Marek <mmarek@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 Makefile |    2 ++
 1 file changed, 2 insertions(+)

--- a/Makefile
+++ b/Makefile
@@ -622,6 +622,8 @@ include arch/$(SRCARCH)/Makefile
 KBUILD_CFLAGS	+= $(call cc-option,-fno-delete-null-pointer-checks,)
 KBUILD_CFLAGS	+= $(call cc-disable-warning,maybe-uninitialized,)
 KBUILD_CFLAGS	+= $(call cc-disable-warning,frame-address,)
+KBUILD_CFLAGS	+= $(call cc-option,-fno-PIE)
+KBUILD_AFLAGS	+= $(call cc-option,-fno-PIE)
 
 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 KBUILD_CFLAGS	+= -Os


Patches currently in stable-queue which might be from bigeasy@linutronix.de are

queue-4.8/x86-kexec-add-fno-pie.patch
queue-4.8/scripts-has-stack-protector-add-fno-pie.patch
queue-4.8/kbuild-add-fno-pie.patch
queue-4.8/x86-cpu-deal-with-broken-firmware-vmware-xen.patch
queue-4.8/kbuild-steal-gcc-s-pie-from-the-very-beginning.patch