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Date:   Thu, 23 Nov 2023 10:50:07 +0800
From:   Haibo Xu <xiaobo55x@...il.com>
To:     Andrew Jones <ajones@...tanamicro.com>
Cc:     Haibo Xu <haibo1.xu@...el.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Shuah Khan <shuah@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Oliver Upton <oliver.upton@...ux.dev>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Zenghui Yu <yuzenghui@...wei.com>,
        Anup Patel <anup@...infault.org>,
        Atish Patra <atishp@...shpatra.org>,
        Sean Christopherson <seanjc@...gle.com>,
        Ricardo Koller <ricarkol@...gle.com>,
        Vishal Annapurve <vannapurve@...gle.com>,
        Vipin Sharma <vipinsh@...gle.com>,
        David Matlack <dmatlack@...gle.com>,
        Aaron Lewis <aaronlewis@...gle.com>,
        Colton Lewis <coltonlewis@...gle.com>,
        Thomas Huth <thuth@...hat.com>, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org, kvm@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
        kvm-riscv@...ts.infradead.org
Subject: Re: [PATCH v3 2/9] KVM: selftests: Unify the makefile rule for split targets

On Wed, Nov 22, 2023 at 4:13 PM Andrew Jones <ajones@...tanamicro.com> wrote:
>
> On Sun, Oct 08, 2023 at 10:58:57AM +0800, Haibo Xu wrote:
> > On Tue, Oct 3, 2023 at 6:28 PM Andrew Jones <ajones@...tanamicro.com> wrote:
> > >
> > > On Thu, Sep 14, 2023 at 09:36:56AM +0800, Haibo Xu wrote:
> > > > A separate makefile rule was used for split targets which was added
> > > > in patch(KVM: arm64: selftests: Split get-reg-list test code). This
> > > > could be avoided by minor changes to the recipes of current rule.
> > > >
> > > > Signed-off-by: Haibo Xu <haibo1.xu@...el.com>
> > > > ---
> > > >  tools/testing/selftests/kvm/Makefile | 6 ++----
> > > >  1 file changed, 2 insertions(+), 4 deletions(-)
> > > >
> > > > diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
> > > > index a3bb36fb3cfc..7972269e8c5f 100644
> > > > --- a/tools/testing/selftests/kvm/Makefile
> > > > +++ b/tools/testing/selftests/kvm/Makefile
> > > > @@ -249,13 +249,10 @@ TEST_DEP_FILES += $(patsubst %.o, %.d, $(SPLIT_TESTS_OBJS))
> > > >  -include $(TEST_DEP_FILES)
> > > >
> > > >  $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): %: %.o
> > > > -     $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIBKVM_OBJS) $(LDLIBS) -o $@
> > > > +     $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
> > > >  $(TEST_GEN_OBJ): $(OUTPUT)/%.o: %.c
> > > >       $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
> > > >
> > > > -$(SPLIT_TESTS_TARGETS): %: %.o $(SPLIT_TESTS_OBJS)
> > > > -     $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
> > > > -
> > > >  EXTRA_CLEAN += $(LIBKVM_OBJS) $(TEST_DEP_FILES) $(TEST_GEN_OBJ) $(SPLIT_TESTS_OBJS) cscope.*
> > > >
> > > >  x := $(shell mkdir -p $(sort $(dir $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ))))
> > > > @@ -274,6 +271,7 @@ $(LIBKVM_STRING_OBJ): $(OUTPUT)/%.o: %.c
> > > >  x := $(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))
> > > >  $(TEST_GEN_PROGS): $(LIBKVM_OBJS)
> > > >  $(TEST_GEN_PROGS_EXTENDED): $(LIBKVM_OBJS)
> > > > +$(SPLIT_TESTS_TARGETS): $(OUTPUT)/%: $(ARCH_DIR)/%.o
> > > >
> > > >  cscope: include_paths = $(LINUX_TOOL_INCLUDE) $(LINUX_HDR_PATH) include lib ..
> > > >  cscope:
> > > > --
> > > > 2.34.1
> > > >
> > >
> > > I just noticed that with and without this patch we're building the
> > > arch-specific part in tools/testing/selftests/kvm/riscv even when we have
> > > an $(OUTPUT) directory (e.g. O=build). Those build artifacts should be in
> > > build/kselftest/kvm/riscv instead.
> > >
> >
> > Thanks for pointing it out. I will have a look in next week!
> >
>
> Hi Haibo,
>
> Paolo just fixed this
>
> https://lore.kernel.org/all/20231121165631.1170797-1-pbonzini@redhat.com/
>

Thanks for the info! I will rebase the patch set in next version.

Thanks,
Haibo

> Thanks,
> drew

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