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authorSami Tolvanen <samitolvanen@google.com>2020-12-11 10:46:29 -0800
committerKees Cook <keescook@chromium.org>2021-01-14 08:21:09 -0800
commit6e20f18579c5ba2f1bcbb2ec28a51cafca76935f (patch)
treea40ecf2e8da93c0160f5726217c0dee6a38cde8c /drivers
parentd23dddf86a12c96d9a3d135a567b9716e5b47821 (diff)
downloadlinux-6e20f18579c5ba2f1bcbb2ec28a51cafca76935f.tar.bz2
efi/libstub: disable LTO
With CONFIG_LTO_CLANG, we produce LLVM bitcode instead of ELF object files. Since LTO is not really needed here and the Makefile assumes we produce an object file, disable LTO for libstub. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20201211184633.3213045-13-samitolvanen@google.com
Diffstat (limited to 'drivers')
-rw-r--r--drivers/firmware/efi/libstub/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index 8a94388e38b3..c23466e05e60 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -38,6 +38,8 @@ KBUILD_CFLAGS := $(cflags-y) -Os -DDISABLE_BRANCH_PROFILING \
# remove SCS flags from all objects in this directory
KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS))
+# disable LTO
+KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_LTO), $(KBUILD_CFLAGS))
GCOV_PROFILE := n
# Sanitizer runtimes are unavailable and cannot be linked here.