The UBSAN instrumentation cannot work in the vDSO since it is executing in userspace, so disable it in the Makefile. Fixes the build failures such as:
arch/sparc/vdso/vclock_gettime.c:217: undefined reference to `__ubsan_handle_shift_out_of_bounds' Signed-off-by: Kees Cook <keesc...@chromium.org> --- Cc: "David S. Miller" <da...@davemloft.net> Cc: Andreas Larsson <andr...@gaisler.com> Cc: Masahiro Yamada <masahi...@kernel.org> Cc: Sam Ravnborg <s...@ravnborg.org> Cc: Helge Deller <del...@gmx.de> Cc: Guo Ren <guo...@kernel.org> Cc: sparcli...@vger.kernel.org --- arch/sparc/vdso/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile index 7f5eedf1f5e0..e8aef2c8ae99 100644 --- a/arch/sparc/vdso/Makefile +++ b/arch/sparc/vdso/Makefile @@ -2,6 +2,7 @@ # # Building vDSO images for sparc. # +UBSAN_SANITIZE := n # files to link into the vdso vobjs-y := vdso-note.o vclock_gettime.o -- 2.34.1
