Re: [PATCH 17/22] arm64: vdso: disable LTO
From: Nick Desaulniers <ndesaulniers@google.com>
Date: 2020-06-24 20:59:16
Also in:
linux-arch, linux-kbuild, linux-pci, lkml
On Wed, Jun 24, 2020 at 1:33 PM Sami Tolvanen [off-list ref] 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?
quoted hunk ↗ jump to hunk
Signed-off-by: Sami Tolvanen <samitolvanen@google.com> --- 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 --2.27.0.212.ge8ba1cc988-goog
-- Thanks, ~Nick Desaulniers _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel