With the most recent tools for ARC (arc-2017.09) in case of "naked" function compiler throws a warning: ---------------------------------->8----------------------------- board/synopsys/hsdk/hsdk.c: In function 'hsdk_core_init_f': board/synopsys/hsdk/hsdk.c:345:1: warning: stack usage computation not supported for this target } ^ ---------------------------------->8-----------------------------
That happens because the compiler doesn't handle "naked" functions as a special case where stack calculation shouldn't be done. But for now until this is fixed in GCC to get clean buildman output we're disabling stack-usage check for ARC. See https://lists.denx.de/pipermail/u-boot/2018-April/324455.html for more background. Signed-off-by: Alexey Brodkin <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Tom Rini <[email protected]> --- Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Makefile b/Makefile index 5fa14789d99f..c80b902afdce 100644 --- a/Makefile +++ b/Makefile @@ -600,9 +600,13 @@ KBUILD_CFLAGS += -g KBUILD_AFLAGS += -g # Report stack usage if supported +# ARC tools based on GCC 7.1 has an issue with stack usage +# with naked functions, see commit message for more details +ifndef CONFIG_ARC ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) KBUILD_CFLAGS += -fstack-usage endif +endif KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) -- 2.14.3 _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
