[PATCH 1/4] selftests/nolibc: add a variable for nolibc-test source files

[Thomas Weißschuh]

The list of the nolibc-test source files is repeated many times.
Another source file is about to be added, adding to the mess.

Introduce a common variable instead.

Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
---
 tools/testing/selftests/nolibc/Makefile         | 4 ++--
 tools/testing/selftests/nolibc/Makefile.include | 2 ++
 tools/testing/selftests/nolibc/Makefile.nolibc  | 8 ++++----
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 0370489d938b..6bace04227a7 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -13,9 +13,9 @@ $(OUTPUT)/nolibc-test: CFLAGS = -nostdlib -nostdinc -static \
 	 -isystem $(top_srcdir)/tools/include/nolibc -isystem $(top_srcdir)/usr/include \
 	 $(CFLAGS_NOLIBC_TEST)
 $(OUTPUT)/nolibc-test: LDLIBS = $(if $(LLVM),,-lgcc)
-$(OUTPUT)/nolibc-test: nolibc-test.c nolibc-test-linkage.c | headers
+$(OUTPUT)/nolibc-test: $(NOLIBC_TEST_SOURCES) | headers
 
-$(OUTPUT)/libc-test: nolibc-test.c nolibc-test-linkage.c
+$(OUTPUT)/libc-test: $(NOLIBC_TEST_SOURCES)
 	$(call msg,CC,,$@)
 	$(Q)$(LINK.c) $^ -o $@
 
diff --git a/tools/testing/selftests/nolibc/Makefile.include b/tools/testing/selftests/nolibc/Makefile.include
index 66287fafbbe0..6455373d56be 100644
--- a/tools/testing/selftests/nolibc/Makefile.include
+++ b/tools/testing/selftests/nolibc/Makefile.include
@@ -8,3 +8,5 @@ _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) $(_CFLAGS_SANITIZER)
+
+NOLIBC_TEST_SOURCES := nolibc-test.c nolibc-test-linkage.c
diff --git a/tools/testing/selftests/nolibc/Makefile.nolibc b/tools/testing/selftests/nolibc/Makefile.nolibc
index f5704193038f..2d32cec1105f 100644
--- a/tools/testing/selftests/nolibc/Makefile.nolibc
+++ b/tools/testing/selftests/nolibc/Makefile.nolibc
@@ -302,12 +302,12 @@ sysroot/$(ARCH)/include:
 	$(Q)$(MAKE) -C $(srctree)/tools/include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone headers_check
 	$(Q)mv sysroot/sysroot sysroot/$(ARCH)
 
-nolibc-test: nolibc-test.c nolibc-test-linkage.c sysroot/$(ARCH)/include
+nolibc-test: $(NOLIBC_TEST_SOURCES) sysroot/$(ARCH)/include
 	$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \
-	  -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include nolibc-test.c nolibc-test-linkage.c $(LIBGCC)
+	  -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include $(NOLIBC_TEST_SOURCES) $(LIBGCC)
 
-libc-test: nolibc-test.c nolibc-test-linkage.c
-	$(QUIET_CC)$(HOSTCC) -o $@ nolibc-test.c nolibc-test-linkage.c
+libc-test: $(NOLIBC_TEST_SOURCES)
+	$(QUIET_CC)$(HOSTCC) -o $@ $(NOLIBC_TEST_SOURCES)
 
 # local libc-test
 run-libc-test: libc-test

-- 
2.53.0