drivers/misc/lkdtm: disable LTO for rodata.o

Disable LTO for rodata.o to allow objcopy to be used to
manipulate sections.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201211184633.3213045-14-samitolvanen@google.com

diff --git a/drivers/misc/lkdtm/Makefile b/drivers/misc/lkdtm/Makefile
index 6b888d0..aa12097 100644 (file)
--- a/drivers/misc/lkdtm/Makefile
+++ b/drivers/misc/lkdtm/Makefile
@@ -16,6 +16,7 @@ lkdtm-$(CONFIG_PPC_BOOK3S_64) += powerpc.o
 KASAN_SANITIZE_rodata.o                := n
 KASAN_SANITIZE_stackleak.o     := n
 KCOV_INSTRUMENT_rodata.o       := n
+CFLAGS_REMOVE_rodata.o         += $(CC_FLAGS_LTO)
 
 OBJCOPYFLAGS :=
 OBJCOPYFLAGS_rodata_objcopy.o  := \