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kasan: do not sanitize kexec purgatory 

Fixes this:

  kexec: Undefined symbol: __asan_load8_noabort
  kexec-bzImage64: Loading purgatory failed

Link: http://lkml.kernel.org/r/1489672155.4458.7.camel@gmx.de
Signed-off-by: Mike Galbraith <efault@gmx.de>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mike Galbraith 2017-03-31 15:12:12 -07:00 committed by Linus Torvalds
parent 4785603bd0
commit 13a6798e4a
1 changed files with 1 additions and 0 deletions
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arch/x86/purgatory/Makefile
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@ -8,6 +8,7 @@ PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib
targets += purgatory.ro
KASAN_SANITIZE := n
KCOV_INSTRUMENT := n
# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That