linux/tools/testing/selftests/nolibc/Makefile.include

# SPDX-License-Identifier: GPL-2.0

__CFLAGS_STACKPROTECTOR = $(call cc-option,-fstack-protector-all) $(call cc-option,-mstack-protector-guard=global)
_CFLAGS_STACKPROTECTOR ?= $(call try-run, \
	echo 'void foo(void) {}' | $(CC) -x c - -o - -S $(CLANG_CROSS_FLAGS) $(__CFLAGS_STACKPROTECTOR) | grep -q __stack_chk_guard, \
	$(__CFLAGS_STACKPROTECTOR))
_CFLAGS_SANITIZER ?= $(call cc-option,-fsanitize=undefined -fsanitize-trap=all)
CFLAGS_NOLIBC_TEST  ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 -W -Wall -Wextra \
		$(call cc-option,-fno-stack-protector) $(call cc-option,-Wmissing-prototypes) \
		$(_CFLAGS_STACKPROTECTOR) $(_CFLAGS_SANITIZER)
selftests/nolibc: split out CFLAGS logic Some upcoming changes will reuse the CFLAGS. Split the computation into a reusable Makefile. Acked-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/r/20250620-nolibc-selftests-v1-2-f6b2ce7c5071@weissschuh.net Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> 2025-06-20 23:39:31 +02:00			`# SPDX-License-Identifier: GPL-2.0`

			`__CFLAGS_STACKPROTECTOR = $(call cc-option,-fstack-protector-all) $(call cc-option,-mstack-protector-guard=global)`
			`_CFLAGS_STACKPROTECTOR ?= $(call try-run, \`
			`echo 'void foo(void) {}' \| $(CC) -x c - -o - -S $(CLANG_CROSS_FLAGS) $(__CFLAGS_STACKPROTECTOR) \| grep -q __stack_chk_guard, \`
			`$(__CFLAGS_STACKPROTECTOR))`
			`_CFLAGS_SANITIZER ?= $(call cc-option,-fsanitize=undefined -fsanitize-trap=all)`
			`CFLAGS_NOLIBC_TEST ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 -W -Wall -Wextra \`
			`$(call cc-option,-fno-stack-protector) $(call cc-option,-Wmissing-prototypes) \`
			`$(_CFLAGS_STACKPROTECTOR) $(_CFLAGS_SANITIZER)`