| From | Brian Gerst <> | Date | Tue, 5 May 2020 16:39:01 -0400 | Subject | Re: [patch V4 part 1 19/36] x86/entry: Exclude low level entry code from sanitizing |
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On Tue, May 5, 2020 at 10:13 AM Thomas Gleixner <tglx@linutronix.de> wrote: > > The sanitizers are not really applicable to the fragile low level entry > code. code. Entry code needs to carefully setup a normal 'runtime' > environment. > > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> > Signed-off-by: Thomas Gleixner <tglx@linutronix.de> > --- > arch/x86/entry/Makefile | 8 ++++++++ > 1 file changed, 8 insertions(+) > > --- a/arch/x86/entry/Makefile > +++ b/arch/x86/entry/Makefile > @@ -3,6 +3,14 @@ > # Makefile for the x86 low level entry code > # > > +KASAN_SANITIZE := n > +UBSAN_SANITIZE := n > +KCOV_INSTRUMENT := n > + > +CFLAGS_REMOVE_common.o = $(CC_FLAGS_FTRACE) -fstack-protector -fstack-protector-strong > +CFLAGS_REMOVE_syscall_32.o = $(CC_FLAGS_FTRACE) -fstack-protector -fstack-protector-strong > +CFLAGS_REMOVE_syscall_64.o = $(CC_FLAGS_FTRACE) -fstack-protector -fstack-protector-strong
Is this necessary for syscall_*.o? They just contain the syscall tables (ie. data).
-- Brian Gerst
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