If -fstack-usage option is given for such architecures that do not support it, gcc displays a warning message but still exits with status 0.
This commits adds a new scripts to test -fstack-usage support because we cannot rely on $(call cc-option,...) . Signed-off-by: Masahiro Yamada <[email protected]> Cc: Tom Rini <[email protected]> Cc: Michal Simek <[email protected]> Cc: Jeroen Hofstee <[email protected]> Cc: Albert ARIBAUD <[email protected]> --- config.mk | 5 +++-- scripts/gcc-stack-usage.sh | 18 ++++++++++++++++++ 2 files changed, 21 insertions(+), 2 deletions(-) create mode 100755 scripts/gcc-stack-usage.sh diff --git a/config.mk b/config.mk index 3441387..8a82ab4 100644 --- a/config.mk +++ b/config.mk @@ -279,8 +279,9 @@ CFLAGS_WARN := $(call cc-option,-Wno-format-nonliteral) \ CFLAGS += $(CFLAGS_WARN) # Report stack usage if supported -CFLAGS_STACK := $(call cc-option,-fstack-usage) -CFLAGS += $(CFLAGS_STACK) +ifeq ($(shell $(SHELL) $(SRCTREE)/scripts/gcc-stack-usage.sh $(CC)), y) + CFLAGS += -fstack-usage +endif BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%)) diff --git a/scripts/gcc-stack-usage.sh b/scripts/gcc-stack-usage.sh new file mode 100755 index 0000000..53eb10a --- /dev/null +++ b/scripts/gcc-stack-usage.sh @@ -0,0 +1,18 @@ +#!/bin/sh +# Test for gcc '-fstack-usage' support +# Copyright (C) 2013, Masahiro Yamada <[email protected]> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +TMP=${OBJTREE}/"$$" + +cat << "END" | $@ -Werror -fstack-usage -x c - -c -o $TMP >/dev/null 2>&1 \ + && echo "y" +int main(void) +{ + return 0; +} +END + +rm -f $TMP $TMP.su -- 1.8.1.2 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
