On Mon, Nov 19, 2018 at 1:55 PM Yu-cheng Yu <[email protected]> wrote: > > From: "H.J. Lu" <[email protected]> > > When Intel indirect branch tracking is enabled, functions in vDSO which > may be called indirectly must have endbr32 or endbr64 as the first > instruction. Compiler must support -fcf-protection=branch so that it > can be used to compile vDSO. > > Signed-off-by: H.J. Lu <[email protected]> > --- > arch/x86/entry/vdso/.gitignore | 4 ++++ > arch/x86/entry/vdso/Makefile | 12 +++++++++++- > arch/x86/entry/vdso/vdso-layout.lds.S | 1 + > 3 files changed, 16 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/entry/vdso/.gitignore b/arch/x86/entry/vdso/.gitignore > index aae8ffdd5880..552941fdfae0 100644 > --- a/arch/x86/entry/vdso/.gitignore > +++ b/arch/x86/entry/vdso/.gitignore > @@ -5,3 +5,7 @@ vdso32-sysenter-syms.lds > vdso32-int80-syms.lds > vdso-image-*.c > vdso2c > +vclock_gettime.S > +vgetcpu.S > +vclock_gettime.asm > +vgetcpu.asm
What's this hunk about?
