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Date:   Thu, 6 Oct 2022 14:42:58 -0300
From:   Arnaldo Carvalho de Melo <acme@kernel.org>
To:     Leo Yan <leo.yan@linaro.org>
Cc:     carsten.haitzler@foss.arm.com, Jiri Slaby <jirislaby@kernel.org>,
        linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
        suzuki.poulose@arm.com, mathieu.poirier@linaro.org,
        mike.leach@linaro.org, linux-perf-users@vger.kernel.org
Subject: Re: [PATCH v9 02/13] perf test: Add build infra for perf test tools
 for CoreSight tests
Message-ID: <Yz8TojIibofTn8Rp@kernel.org>
References: <20220909152803.2317006-1-carsten.haitzler@foss.arm.com>
 <20220909152803.2317006-3-carsten.haitzler@foss.arm.com>
 <Yz67SHpIN5NggKEk@kernel.org>
 <Yz6/zlchVnNsVlzJ@kernel.org>
 <Yz7RAgMN6WGnD3OZ@leoy-yangtze.lan>
 <Yz7klV3h+JJ+ilAp@kernel.org>
 <Yz7vJ9Wy0zCTwp1t@leoy-yangtze.lan>
 <Yz8Ma75+RgGVYqBN@kernel.org>
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Em Thu, Oct 06, 2022 at 02:12:11PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Thu, Oct 06, 2022 at 11:07:19PM +0800, Leo Yan escreveu:
> > On Thu, Oct 06, 2022 at 11:22:13AM -0300, Arnaldo Carvalho de Melo wrote:
> > 
> > [...]
> > 
> > > > @@ -1006,7 +1014,10 @@ install-tests: all install-gtk
> > > >                 $(INSTALL) tests/shell/*.sh '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell'; \
> > > >                 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'; \
> > > >                 $(INSTALL) tests/shell/lib/*.sh -m 644 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'; \
> > > > -               $(INSTALL) tests/shell/lib/*.py -m 644 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'
> > > > +               $(INSTALL) tests/shell/lib/*.py -m 644 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'; \
> > > > +               $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/coresight'; \
> > > > +               $(INSTALL) tests/shell/coresight/*.sh '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/coresight'
> > > > +       $(Q)$(MAKE) -C tests/shell/coresight install-tests
> > > > 
> > > > It's deliberately to not add '-m 644' when install coresight test
> > > > shell scripts under the folder tests/shell/coresight/ so that we can
> > > > keep the executable permission for these scripts.  On the other flip,
> > > > we set 644 mode for the scripts under tests/shell/lib/ so these
> > > > scripts will not be executed directly by perf test framework.
> > > > 
> > > > @Carsten, if have chance could you confirm for above change?
> > > 
> > > If you need for some .sh, coresight test's to have x set while all of
> > > the others don't have, and you have a good reason for that, ok, we just
> > > add a comment.
> > 
> > Simply to say, all lib scripts are not needed for execute permission.
> > Yes, it's good to add a comment for the installation steps.
> > 
> > > > >   DESCEND plugins
> > > > >   GEN     /tmp/build/perf/python/perf.so
> > > > >   INSTALL trace_plugins
> > > > >   INSTALL binaries
> > > > >   INSTALL tests
> > > > > install: cannot stat 'tests/shell/coresight/*.sh': No such file or directory
> > > > > make[2]: *** [Makefile.perf:1007: install-tests] Error 1
> > > > > make[2]: *** Waiting for unfinished jobs....
> > > > > 
> > > > > I'll add it back when the first .sh gets added to tests/shell/coresight/
> > > > 
> > > > Sorry for introducing extra efforts for you and thanks!
> > > 
> > > This also has to go, I'll check and fix this loop that doesn't follow
> > > the existing output style, happens with ´make install', etc too:
> > > 
> > > ⬢[acme@toolbox perf]$ make -C tools/perf clean
> > > make: Entering directory '/var/home/acme/git/perf/tools/perf'
> > >   CLEAN   x86
> > >   CLEAN   libtraceevent
> > >   CLEAN   libapi
> > >   CLEAN   libbpf
> > >   CLEAN   libsubcmd
> > >   CLEAN   libperf
> > >   CLEAN   fixdep
> > >   CLEAN   feature-detect
> > >   CLEAN   python
> > >   CLEAN   bpf-skel
> > > make -C asm_pure_loop clean >/dev/null        <-------------------
> > > make -C memcpy_thread clean >/dev/null        <-------------------
> > > make -C thread_loop clean >/dev/null          <-------------------
> > > make -C unroll_loop_thread clean >/dev/null   <-------------------
> > 
> > Ouch, if we can update the file tests/shell/coresight/Makefile as below:
> > 
> > $(CLEANDIRS):
> >         $(call QUIET_CLEAN, test-$(@:clean-%=%)) $(Q)$(MAKE) -C $(@:clean-%=%) clean >/dev/null
> 
> I had to do it, so far, at the time that the above line is first added
> as:
> 
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index a20b4adb5e3451f1..194e582e70c2c766 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -635,7 +635,8 @@ tests-coresight-targets: FORCE
>  	$(Q)$(MAKE) -C $(TESTS_CORESIGHT_DIR)
>  
>  tests-coresight-targets-clean:
> -	$(Q)$(MAKE) -C $(TESTS_CORESIGHT_DIR) clean
> +	$(call QUIET_CLEAN, coresight)
> +	$(Q)$(MAKE) -C $(TESTS_CORESIGHT_DIR) O=$(OUTPUT) clean >/dev/null
>  
>  all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS) tests-coresight-targets
>  
> diff --git a/tools/perf/tests/shell/coresight/Makefile b/tools/perf/tests/shell/coresight/Makefile
> index 3fee05cfcb0e73f6..6baab5cbaa9aa3b1 100644
> --- a/tools/perf/tests/shell/coresight/Makefile
> +++ b/tools/perf/tests/shell/coresight/Makefile
> @@ -20,6 +20,6 @@ CLEANDIRS = $(SUBDIRS:%=clean-%)
>  
>  clean: $(CLEANDIRS)
>  $(CLEANDIRS):
> -	$(Q)$(MAKE) -C $(@:clean-%=%) clean >/dev/null
> +	$(call QUIET_CLEAN, test-$(@:clean-%=%)) $(Q)$(MAKE) -C $(@:clean-%=%) clean >/dev/null
>  
>  .PHONY: all clean $(SUBDIRS) $(CLEANDIRS) $(INSTALLDIRS)

And for the normal build and install, somehow that $(Q) is not being
obeyed there, so I'm using straight @ for now so that we have a clean
output, someone more knowledgeable in the Makefile voodoo can then fix
it.

⬢[acme@toolbox perf]$ git log --oneline -1
e1700b67a41092a5 (HEAD) perf test: Add build infra for perf test tools for ARM CoreSight tests
⬢[acme@toolbox perf]$ git diff
diff --git a/tools/perf/tests/shell/coresight/Makefile b/tools/perf/tests/shell/coresight/Makefile
index 6baab5cbaa9aa3b1..6f3b3f07049c2d53 100644
--- a/tools/perf/tests/shell/coresight/Makefile
+++ b/tools/perf/tests/shell/coresight/Makefile
@@ -8,13 +8,13 @@ SUBDIRS =

 all: $(SUBDIRS)
 $(SUBDIRS):
-       $(Q)$(MAKE) -C $@
+       @$(MAKE) -C $@

 INSTALLDIRS = $(SUBDIRS:%=install-%)

 install-tests: $(INSTALLDIRS)
 $(INSTALLDIRS):
-       $(Q)$(MAKE) -C $(@:install-%=%) install-tests
+       @$(MAKE) -C $(@:install-%=%) install-tests >/dev/null

 CLEANDIRS = $(SUBDIRS:%=clean-%)

⬢[acme@toolbox perf]$