target/linux/brcm2708/patches-4.4/0551-kbuild-add-fno-PIE.patch

   1 From d7c87b54cdabe76c12f2bb527f2a6b02b6255a0f Mon Sep 17 00:00:00 2001
   2 From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
   3 Date: Fri, 4 Nov 2016 19:39:38 +0100
   4 Subject: [PATCH] kbuild: add -fno-PIE
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 commit 8ae94224c9d72fc4d9aaac93b2d7833cf46d7141 upstream.
  10
  11 Debian started to build the gcc with -fPIE by default so the kernel
  12 build ends before it starts properly with:
  13 |kernel/bounds.c:1:0: error: code model kernel does not support PIC mode
  14
  15 Also add to KBUILD_AFLAGS due to:
  16
  17 |gcc -Wp,-MD,arch/x86/entry/vdso/vdso32/.note.o.d … -mfentry -DCC_USING_FENTRY … vdso/vdso32/note.S
  18 |arch/x86/entry/vdso/vdso32/note.S:1:0: sorry, unimplemented: -mfentry isn’t supported for 32-bit in combination with -fpic
  19
  20 Tagging it stable so it is possible to compile recent stable kernels as
  21 well.
  22
  23 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  24 Signed-off-by: Michal Marek <mmarek@suse.com>
  25 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  26 ---
  27  Makefile | 2 ++
  28  1 file changed, 2 insertions(+)
  29
  30 --- a/Makefile
  31 +++ b/Makefile
  32 @@ -622,6 +622,8 @@ KBUILD_CFLAGS       += $(call cc-disable-warni
  33  KBUILD_CFLAGS  += $(call cc-disable-warning, format-truncation)
  34  KBUILD_CFLAGS  += $(call cc-disable-warning, format-overflow)
  35  KBUILD_CFLAGS  += $(call cc-disable-warning, int-in-bool-context)
  36 +KBUILD_CFLAGS  += $(call cc-option,-fno-PIE)
  37 +KBUILD_AFLAGS  += $(call cc-option,-fno-PIE)
  38
  39  ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
  40  KBUILD_CFLAGS  += -Os $(EXTRA_OPTIMIZATION)