On 2023-08-03 22:45:52+0800, Zhangjin Wu wrote: > To avoid pollute the source code tree and avoid mrproper for every > architecture switch, the O= argument must be supported. > > Both IMAGE and .config are from the building directory, let's use > objtree instead of srctree for them. > > If no O= option specified, means building kernel in source code tree, > objtree should be srctree in such case. > > Suggested-by: Willy Tarreau <w@xxxxxx> > Link: https://lore.kernel.org/lkml/ZK0AB1OXH1s2xYsh@xxxxxx/ > Signed-off-by: Zhangjin Wu <falcon@xxxxxxxxxxx> > --- > tools/testing/selftests/nolibc/Makefile | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > > diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile > index 51fef5e6a152..af590aee063a 100644 > --- a/tools/testing/selftests/nolibc/Makefile > +++ b/tools/testing/selftests/nolibc/Makefile > @@ -9,6 +9,9 @@ ifeq ($(srctree),) > srctree := $(patsubst %/tools/testing/selftests/,%,$(dir $(CURDIR))) > endif > > +# add objtree for O= argument, required by IMAGE and .config > +objtree ?= $(srctree) Isn't this already set by the included tools/scripts/Makefile.include? Also I'm not entirely if O= works as intended currently. When using O=foo in the $LINUX/tools/testing/selftests/nolibc directory the build instead is happening in $LINUX/foo. But the Makefile first validates that $LINUX/tools/testing/selftests/nolibc/foo exists. It seems we need to pass $(COMMAND_O) to the recursive calls to $(MAKE), too? > + > ifeq ($(ARCH),) > include $(srctree)/scripts/subarch.include > ARCH = $(SUBARCH) > @@ -217,12 +220,12 @@ kernel: initramfs > > # run the tests after building the kernel > run: kernel > - $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(srctree)/$(IMAGE)" -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out" > + $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(objtree)/$(IMAGE)" -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out" > $(Q)$(REPORT) $(CURDIR)/run.out > > # re-run the tests from an existing kernel > rerun: > - $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(srctree)/$(IMAGE)" -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out" > + $(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(objtree)/$(IMAGE)" -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out" > $(Q)$(REPORT) $(CURDIR)/run.out > > # report with existing test log > -- > 2.25.1 >
