On Wed, Jun 24, 2020 at 1:58 PM Nick Desaulniers <ndesaulniers@xxxxxxxxxx> wrote: > > On Wed, Jun 24, 2020 at 1:33 PM Sami Tolvanen <samitolvanen@xxxxxxxxxx> wrote: > > > > Filter out CC_FLAGS_LTO for the vDSO. > > Just curious about this patch (and the following one for x86's vdso), > do you happen to recall specifically what the issues with the vdso's > are? + Andi (tangential, I actually have a bunch of tabs open with slides from http://halobates.de/ right now) 58edae3aac9f2 67424d5a22124 $ git log -S DISABLE_LTO > > > > > Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> > > --- > > arch/arm64/kernel/vdso/Makefile | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile > > index 556d424c6f52..cfad4c296ca1 100644 > > --- a/arch/arm64/kernel/vdso/Makefile > > +++ b/arch/arm64/kernel/vdso/Makefile > > @@ -29,8 +29,8 @@ ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \ > > ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18 > > ccflags-y += -DDISABLE_BRANCH_PROFILING > > > > -CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS) > > -KBUILD_CFLAGS += $(DISABLE_LTO) > > +CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS) \ > > + $(CC_FLAGS_LTO) > > KASAN_SANITIZE := n > > UBSAN_SANITIZE := n > > OBJECT_FILES_NON_STANDARD := y > > -- -- Thanks, ~Nick Desaulniers
