@@ -153,6 +153,7 @@ all: run
sysroot: sysroot/$(ARCH)/include
+PHONY = sysroot/$(ARCH)/include
sysroot/$(ARCH)/include:
$(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot
$(QUIET_MKDIR)mkdir -p sysroot
@@ -205,14 +206,21 @@ defconfig:
$(Q)$(srctree)/scripts/kconfig/merge_config.sh -O "$(objtree)" -m "$(KERNEL_CONFIG)" $(foreach c,$(EXTCONFIG),$(wildcard $(CURDIR)/configs/$c))
$(Q)$(MAKE_KERNEL) KCONFIG_ALLCONFIG="$(KERNEL_CONFIG)" allnoconfig
-kernel: initramfs
+PHONY += $(KERNEL_CONFIG)
+$(KERNEL_CONFIG):
+ $(Q)if [ ! -f "$(KERNEL_CONFIG)" ]; then $(MAKE) --no-print-directory defconfig; fi
+
+kernel: $(KERNEL_CONFIG)
+ $(Q)$(MAKE) --no-print-directory initramfs
$(Q)$(MAKE_KERNEL) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs
# common macros for qemu run/rerun targets
QEMU_SYSTEM_RUN = qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(KERNEL_IMAGE)" -serial stdio $(QEMU_ARGS)
# run the tests after building the kernel
-run: kernel
+PHONY += $(KERNEL_IMAGE)
+$(KERNEL_IMAGE): kernel
+run: $(KERNEL_IMAGE)
$(Q)$(QEMU_SYSTEM_RUN) > "$(RUN_OUT)"
$(Q)$(REPORT) "$(RUN_OUT)"
@@ -237,4 +245,4 @@ clean:
$(call QUIET_CLEAN, run.out)
$(Q)rm -rf run.out
-.PHONY: sysroot/$(ARCH)/include
+.PHONY: $(PHONY)
To avoid run targets one by one manually and boringly, let's string them with IMAGE and .config, the MAKE command will trigger the dependencies for us. Note, defconfig target is only triggered while the .config is not there, it means only trigger defconfig for the first run or after a mrproper. Suggested-by: Willy Tarreau <w@1wt.eu> Link: https://lore.kernel.org/lkml/20230725142017.37103-1-falcon@tinylab.org/ Signed-off-by: Zhangjin Wu <falcon@tinylab.org> --- tools/testing/selftests/nolibc/Makefile | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)