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selftests/nolibc: split out CFLAGS logic

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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>
This commit is contained in:
Thomas Weißschuh 2025-06-20 23:39:31 +02:00
parent 54c18a8f07
commit a09db6afe2
2 changed files with 14 additions and 8 deletions
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12
tools/testing/selftests/nolibc/Makefile
View File

@ -195,14 +195,10 @@ CFLAGS_sparc32 = $(call cc-option,-m32)
ifeq ($(origin XARCH),command line)
CFLAGS_XARCH = $(CFLAGS_$(XARCH))
endif
_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 ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 -W -Wall -Wextra \
$(call cc-option,-fno-stack-protector) $(call cc-option,-Wmissing-prototypes) \
$(CFLAGS_XARCH) $(CFLAGS_STACKPROTECTOR) $(CFLAGS_SANITIZER) $(CFLAGS_EXTRA)
include Makefile.include
CFLAGS ?= $(CFLAGS_NOLIBC_TEST) $(CFLAGS_XARCH) $(CFLAGS_EXTRA)
LDFLAGS :=
LIBGCC := -lgcc

10
tools/testing/selftests/nolibc/Makefile.include Normal file
View File

@ -0,0 +1,10 @@
# 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)