Commit 8bbb58a3 authored by Andre Przywara's avatar Andre Przywara Committed by Catalin Marinas
Browse files

kselftest/arm64: mte: Output warning about failing compiler 



At the moment we check the compiler's ability to compile MTE enabled
code, but guard all the Makefile rules by it. As a consequence a broken
or not capable compiler just doesn't do anything, and make happily
returns without any error message, but with no programs created.

Since the MTE feature is only supported by recent aarch64 compilers (not
all stable distro compilers support it), having an explicit message
seems like a good idea. To not break building multiple targets, we let
make proceed without errors.

Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
Reviewed-by: default avatarMark Brown <broone@kernel.org>
Link: https://lore.kernel.org/r/20210319165334.29213-9-andre.przywara@arm.com


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 5238c2cd

tools/testing/selftests/arm64/mte/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -23,6 +23,9 @@ TEST_GEN_PROGS := $(PROGS) 


# Get Kernel headers installed and use them.

KSFT_KHDR_INSTALL := 1

else

    $(warning compiler "$(CC)" does not support the ARMv8.5 MTE extension.)

    $(warning test program "mte" will not be created.)

endif



# Include KSFT lib.mk.