| Message ID | 20210416130051.239782-1-masahiroy@kernel.org (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | b61442df748f06e98085fb604093a6215ce730eb |
| Headers | show |
| Series | [v2] tools: do not include scripts/Kbuild.include | expand |
On 16.04.21 15:00, Masahiro Yamada wrote: > Since commit d9f4ff50d2aa ("kbuild: spilt cc-option and friends to > scripts/Makefile.compiler"), some kselftests fail to build. > > The tools/ directory opted out Kbuild, and went in a different > direction. They copy any kind of files to the tools/ directory > in order to do whatever they want in their world. > > tools/build/Build.include mimics scripts/Kbuild.include, but some > tool Makefiles included the Kbuild one to import a feature that is > missing in tools/build/Build.include: > > - Commit ec04aa3ae87b ("tools/thermal: tmon: use "-fstack-protector" > only if supported") included scripts/Kbuild.include from > tools/thermal/tmon/Makefile to import the cc-option macro. > > - Commit c2390f16fc5b ("selftests: kvm: fix for compilers that do > not support -no-pie") included scripts/Kbuild.include from > tools/testing/selftests/kvm/Makefile to import the try-run macro. > > - Commit 9cae4ace80ef ("selftests/bpf: do not ignore clang > failures") included scripts/Kbuild.include from > tools/testing/selftests/bpf/Makefile to import the .DELETE_ON_ERROR > target. > > - Commit 0695f8bca93e ("selftests/powerpc: Handle Makefile for > unrecognized option") included scripts/Kbuild.include from > tools/testing/selftests/powerpc/pmu/ebb/Makefile to import the > try-run macro. > > Copy what they need into tools/build/Build.include, and make them > include it instead of scripts/Kbuild.include. > > Link: https://lore.kernel.org/lkml/86dadf33-70f7-a5ac-cb8c-64966d2f45a1@linux.ibm.com/ > Fixes: d9f4ff50d2aa ("kbuild: spilt cc-option and friends to scripts/Makefile.compiler") > Reported-by: Janosch Frank <frankja@linux.ibm.com> > Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> > Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> looks better. Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
On 16/04/21 15:26, Christian Borntraeger wrote: > > > On 16.04.21 15:00, Masahiro Yamada wrote: >> Since commit d9f4ff50d2aa ("kbuild: spilt cc-option and friends to >> scripts/Makefile.compiler"), some kselftests fail to build. >> >> The tools/ directory opted out Kbuild, and went in a different >> direction. They copy any kind of files to the tools/ directory >> in order to do whatever they want in their world. >> >> tools/build/Build.include mimics scripts/Kbuild.include, but some >> tool Makefiles included the Kbuild one to import a feature that is >> missing in tools/build/Build.include: >> >> - Commit ec04aa3ae87b ("tools/thermal: tmon: use "-fstack-protector" >> only if supported") included scripts/Kbuild.include from >> tools/thermal/tmon/Makefile to import the cc-option macro. >> >> - Commit c2390f16fc5b ("selftests: kvm: fix for compilers that do >> not support -no-pie") included scripts/Kbuild.include from >> tools/testing/selftests/kvm/Makefile to import the try-run macro. >> >> - Commit 9cae4ace80ef ("selftests/bpf: do not ignore clang >> failures") included scripts/Kbuild.include from >> tools/testing/selftests/bpf/Makefile to import the .DELETE_ON_ERROR >> target. >> >> - Commit 0695f8bca93e ("selftests/powerpc: Handle Makefile for >> unrecognized option") included scripts/Kbuild.include from >> tools/testing/selftests/powerpc/pmu/ebb/Makefile to import the >> try-run macro. >> >> Copy what they need into tools/build/Build.include, and make them >> include it instead of scripts/Kbuild.include. >> >> Link: >> https://lore.kernel.org/lkml/86dadf33-70f7-a5ac-cb8c-64966d2f45a1@linux.ibm.com/ >> >> Fixes: d9f4ff50d2aa ("kbuild: spilt cc-option and friends to >> scripts/Makefile.compiler") >> Reported-by: Janosch Frank <frankja@linux.ibm.com> >> Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> >> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> > > looks better. > Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> > Thank you very much Masahiro, this look great. Paolo
On 4/16/21 6:00 AM, Masahiro Yamada wrote: > Since commit d9f4ff50d2aa ("kbuild: spilt cc-option and friends to > scripts/Makefile.compiler"), some kselftests fail to build. > > The tools/ directory opted out Kbuild, and went in a different > direction. They copy any kind of files to the tools/ directory > in order to do whatever they want in their world. > > tools/build/Build.include mimics scripts/Kbuild.include, but some > tool Makefiles included the Kbuild one to import a feature that is > missing in tools/build/Build.include: > > - Commit ec04aa3ae87b ("tools/thermal: tmon: use "-fstack-protector" > only if supported") included scripts/Kbuild.include from > tools/thermal/tmon/Makefile to import the cc-option macro. > > - Commit c2390f16fc5b ("selftests: kvm: fix for compilers that do > not support -no-pie") included scripts/Kbuild.include from > tools/testing/selftests/kvm/Makefile to import the try-run macro. > > - Commit 9cae4ace80ef ("selftests/bpf: do not ignore clang > failures") included scripts/Kbuild.include from > tools/testing/selftests/bpf/Makefile to import the .DELETE_ON_ERROR > target. > > - Commit 0695f8bca93e ("selftests/powerpc: Handle Makefile for > unrecognized option") included scripts/Kbuild.include from > tools/testing/selftests/powerpc/pmu/ebb/Makefile to import the > try-run macro. > > Copy what they need into tools/build/Build.include, and make them > include it instead of scripts/Kbuild.include. > > Link: https://lore.kernel.org/lkml/86dadf33-70f7-a5ac-cb8c-64966d2f45a1@linux.ibm.com/ > Fixes: d9f4ff50d2aa ("kbuild: spilt cc-option and friends to scripts/Makefile.compiler") > Reported-by: Janosch Frank <frankja@linux.ibm.com> > Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> > Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> LGTM although I see some tools Makefile directly added ".DELETE_ON_ERROR:" in their Makefile. Acked-by: Yonghong Song <yhs@fb.com>
On Fri, Apr 16, 2021 at 10:01 PM Masahiro Yamada <masahiroy@kernel.org> wrote: > > Since commit d9f4ff50d2aa ("kbuild: spilt cc-option and friends to > scripts/Makefile.compiler"), some kselftests fail to build. > > The tools/ directory opted out Kbuild, and went in a different > direction. They copy any kind of files to the tools/ directory > in order to do whatever they want in their world. > > tools/build/Build.include mimics scripts/Kbuild.include, but some > tool Makefiles included the Kbuild one to import a feature that is > missing in tools/build/Build.include: > > - Commit ec04aa3ae87b ("tools/thermal: tmon: use "-fstack-protector" > only if supported") included scripts/Kbuild.include from > tools/thermal/tmon/Makefile to import the cc-option macro. > > - Commit c2390f16fc5b ("selftests: kvm: fix for compilers that do > not support -no-pie") included scripts/Kbuild.include from > tools/testing/selftests/kvm/Makefile to import the try-run macro. > > - Commit 9cae4ace80ef ("selftests/bpf: do not ignore clang > failures") included scripts/Kbuild.include from > tools/testing/selftests/bpf/Makefile to import the .DELETE_ON_ERROR > target. > > - Commit 0695f8bca93e ("selftests/powerpc: Handle Makefile for > unrecognized option") included scripts/Kbuild.include from > tools/testing/selftests/powerpc/pmu/ebb/Makefile to import the > try-run macro. > > Copy what they need into tools/build/Build.include, and make them > include it instead of scripts/Kbuild.include. > > Link: https://lore.kernel.org/lkml/86dadf33-70f7-a5ac-cb8c-64966d2f45a1@linux.ibm.com/ > Fixes: d9f4ff50d2aa ("kbuild: spilt cc-option and friends to scripts/Makefile.compiler") > Reported-by: Janosch Frank <frankja@linux.ibm.com> > Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> > Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Applied to linux-kbuild. > --- > > Changes in v2: > - copy macros to tools/build/BUild.include > > tools/build/Build.include | 24 +++++++++++++++++++ > tools/testing/selftests/bpf/Makefile | 2 +- > tools/testing/selftests/kvm/Makefile | 2 +- > .../selftests/powerpc/pmu/ebb/Makefile | 2 +- > tools/thermal/tmon/Makefile | 2 +- > 5 files changed, 28 insertions(+), 4 deletions(-) > > diff --git a/tools/build/Build.include b/tools/build/Build.include > index 585486e40995..2cf3b1bde86e 100644 > --- a/tools/build/Build.include > +++ b/tools/build/Build.include > @@ -100,3 +100,27 @@ cxx_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(CXXFLAGS) -D"BUILD_STR(s)=\#s" $(CXX > ## HOSTCC C flags > > host_c_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(KBUILD_HOSTCFLAGS) -D"BUILD_STR(s)=\#s" $(HOSTCFLAGS_$(basetarget).o) $(HOSTCFLAGS_$(obj)) > + > +# output directory for tests below > +TMPOUT = .tmp_$$$$ > + > +# try-run > +# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise) > +# Exit code chooses option. "$$TMP" serves as a temporary file and is > +# automatically cleaned up. > +try-run = $(shell set -e; \ > + TMP=$(TMPOUT)/tmp; \ > + mkdir -p $(TMPOUT); \ > + trap "rm -rf $(TMPOUT)" EXIT; \ > + if ($(1)) >/dev/null 2>&1; \ > + then echo "$(2)"; \ > + else echo "$(3)"; \ > + fi) > + > +# cc-option > +# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586) > +cc-option = $(call try-run, \ > + $(CC) -Werror $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2)) > + > +# delete partially updated (i.e. corrupted) files on error > +.DELETE_ON_ERROR: > diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile > index 044bfdcf5b74..17a5cdf48d37 100644 > --- a/tools/testing/selftests/bpf/Makefile > +++ b/tools/testing/selftests/bpf/Makefile > @@ -1,5 +1,5 @@ > # SPDX-License-Identifier: GPL-2.0 > -include ../../../../scripts/Kbuild.include > +include ../../../build/Build.include > include ../../../scripts/Makefile.arch > include ../../../scripts/Makefile.include > > diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile > index a6d61f451f88..5ef141f265bd 100644 > --- a/tools/testing/selftests/kvm/Makefile > +++ b/tools/testing/selftests/kvm/Makefile > @@ -1,5 +1,5 @@ > # SPDX-License-Identifier: GPL-2.0-only > -include ../../../../scripts/Kbuild.include > +include ../../../build/Build.include > > all: > > diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile > index af3df79d8163..c5ecb4634094 100644 > --- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile > +++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile > @@ -1,5 +1,5 @@ > # SPDX-License-Identifier: GPL-2.0 > -include ../../../../../../scripts/Kbuild.include > +include ../../../../../build/Build.include > > noarg: > $(MAKE) -C ../../ > diff --git a/tools/thermal/tmon/Makefile b/tools/thermal/tmon/Makefile > index 59e417ec3e13..9db867df7679 100644 > --- a/tools/thermal/tmon/Makefile > +++ b/tools/thermal/tmon/Makefile > @@ -1,6 +1,6 @@ > # SPDX-License-Identifier: GPL-2.0 > # We need this for the "cc-option" macro. > -include ../../../scripts/Kbuild.include > +include ../../build/Build.include > > VERSION = 1.0 > > -- > 2.27.0 > > -- > You received this message because you are subscribed to the Google Groups "Clang Built Linux" group. > To unsubscribe from this group and stop receiving emails from it, send an email to clang-built-linux+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/clang-built-linux/20210416130051.239782-1-masahiroy%40kernel.org.
diff --git a/tools/build/Build.include b/tools/build/Build.include index 585486e40995..2cf3b1bde86e 100644 --- a/tools/build/Build.include +++ b/tools/build/Build.include @@ -100,3 +100,27 @@ cxx_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(CXXFLAGS) -D"BUILD_STR(s)=\#s" $(CXX ## HOSTCC C flags host_c_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(KBUILD_HOSTCFLAGS) -D"BUILD_STR(s)=\#s" $(HOSTCFLAGS_$(basetarget).o) $(HOSTCFLAGS_$(obj)) + +# output directory for tests below +TMPOUT = .tmp_$$$$ + +# try-run +# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise) +# Exit code chooses option. "$$TMP" serves as a temporary file and is +# automatically cleaned up. +try-run = $(shell set -e; \ + TMP=$(TMPOUT)/tmp; \ + mkdir -p $(TMPOUT); \ + trap "rm -rf $(TMPOUT)" EXIT; \ + if ($(1)) >/dev/null 2>&1; \ + then echo "$(2)"; \ + else echo "$(3)"; \ + fi) + +# cc-option +# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586) +cc-option = $(call try-run, \ + $(CC) -Werror $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2)) + +# delete partially updated (i.e. corrupted) files on error +.DELETE_ON_ERROR: diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 044bfdcf5b74..17a5cdf48d37 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -include ../../../../scripts/Kbuild.include +include ../../../build/Build.include include ../../../scripts/Makefile.arch include ../../../scripts/Makefile.include diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index a6d61f451f88..5ef141f265bd 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only -include ../../../../scripts/Kbuild.include +include ../../../build/Build.include all: diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile index af3df79d8163..c5ecb4634094 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile +++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -include ../../../../../../scripts/Kbuild.include +include ../../../../../build/Build.include noarg: $(MAKE) -C ../../ diff --git a/tools/thermal/tmon/Makefile b/tools/thermal/tmon/Makefile index 59e417ec3e13..9db867df7679 100644 --- a/tools/thermal/tmon/Makefile +++ b/tools/thermal/tmon/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 # We need this for the "cc-option" macro. -include ../../../scripts/Kbuild.include +include ../../build/Build.include VERSION = 1.0
Since commit d9f4ff50d2aa ("kbuild: spilt cc-option and friends to scripts/Makefile.compiler"), some kselftests fail to build. The tools/ directory opted out Kbuild, and went in a different direction. They copy any kind of files to the tools/ directory in order to do whatever they want in their world. tools/build/Build.include mimics scripts/Kbuild.include, but some tool Makefiles included the Kbuild one to import a feature that is missing in tools/build/Build.include: - Commit ec04aa3ae87b ("tools/thermal: tmon: use "-fstack-protector" only if supported") included scripts/Kbuild.include from tools/thermal/tmon/Makefile to import the cc-option macro. - Commit c2390f16fc5b ("selftests: kvm: fix for compilers that do not support -no-pie") included scripts/Kbuild.include from tools/testing/selftests/kvm/Makefile to import the try-run macro. - Commit 9cae4ace80ef ("selftests/bpf: do not ignore clang failures") included scripts/Kbuild.include from tools/testing/selftests/bpf/Makefile to import the .DELETE_ON_ERROR target. - Commit 0695f8bca93e ("selftests/powerpc: Handle Makefile for unrecognized option") included scripts/Kbuild.include from tools/testing/selftests/powerpc/pmu/ebb/Makefile to import the try-run macro. Copy what they need into tools/build/Build.include, and make them include it instead of scripts/Kbuild.include. Link: https://lore.kernel.org/lkml/86dadf33-70f7-a5ac-cb8c-64966d2f45a1@linux.ibm.com/ Fixes: d9f4ff50d2aa ("kbuild: spilt cc-option and friends to scripts/Makefile.compiler") Reported-by: Janosch Frank <frankja@linux.ibm.com> Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> --- Changes in v2: - copy macros to tools/build/BUild.include tools/build/Build.include | 24 +++++++++++++++++++ tools/testing/selftests/bpf/Makefile | 2 +- tools/testing/selftests/kvm/Makefile | 2 +- .../selftests/powerpc/pmu/ebb/Makefile | 2 +- tools/thermal/tmon/Makefile | 2 +- 5 files changed, 28 insertions(+), 4 deletions(-)