linux-kernel - Re: [PATCH 00/13] perf tools: Move perf subcommand framework into lib/tools

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Message-ID: <20151208154148.GJ11564@kernel.org>
Date:	Tue, 8 Dec 2015 12:41:48 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Josh Poimboeuf <jpoimboe@...hat.com>
Cc:	Jiri Olsa <jolsa@...hat.com>, Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/13] perf tools: Move perf subcommand framework into
 lib/tools

Em Tue, Dec 08, 2015 at 12:29:15PM -0300, Arnaldo Carvalho de Melo escreveu:
> find: ‘/tmp/tmp.4iuuIJy0Ia/tests’: No such file or directory
> make[4]: *** [tests-clean] Error 1
> make[4]: *** Waiting for unfinished jobs....
> make[3]: *** [clean] Error 2
> [acme@...andy linux]$

So, to reproduce:

[acme@zoo linux]$ rmdir /tmp/foo
[acme@zoo linux]$ mkdir /tmp/foo
[acme@zoo linux]$ make O=/tmp/foo -C tools/perf clean
make: Entering directory '/home/git/linux/tools/perf'
  CLEAN    libtraceevent
  CLEAN    libapi
  CLEAN    config
  CLEAN    libbpf
  CLEAN    feature
  CLEAN    tests
find: ‘/tmp/foo/tests’: No such file or directory
Makefile.perf:592: recipe for target 'tests-clean' failed
make[1]: *** [tests-clean] Error 1
make[1]: *** Waiting for unfinished jobs....
Makefile:75: recipe for target 'clean' failed
make: *** [clean] Error 2
make: Leaving directory '/home/git/linux/tools/perf'
[acme@zoo linux]$

Then, applying the patch below, it works, Jiri, would this be the best way to
solve this? The RM call right after the find works because it uses 'rm -f', I think:


o linux]$ patch -p1 < /tmp/a.patch
patching file tools/perf/Makefile.perf
[acme@zoo linux]$ make O=/tmp/foo -C tools/perf clean
make: Entering directory '/home/git/linux/tools/perf'
  CLEAN    libapi
  CLEAN    libbpf
  CLEAN    libtraceevent
  CLEAN    config
  CLEAN    feature
  CLEAN    tests
  CLEAN    core-objs
  CLEAN    core-progs
  CLEAN    core-gen
  SUBDIR   Documentation
  CLEAN    Documentation
  CLEAN    python
make: Leaving directory '/home/git/linux/tools/perf'
[acme@zoo linux]$ mkdir /tmp/foo/tests/
[acme@zoo linux]$ touch /tmp/foo/tests/.a.cmd
[acme@zoo linux]$ make O=/tmp/foo -C tools/perf clean
make: Entering directory '/home/git/linux/tools/perf'
  CLEAN    libtraceevent
  CLEAN    libapi
  CLEAN    libbpf
  CLEAN    config
  CLEAN    feature
  CLEAN    tests
  CLEAN    core-objs
  CLEAN    core-progs
  CLEAN    core-gen
  SUBDIR   Documentation
  CLEAN    Documentation
  CLEAN    python
make: Leaving directory '/home/git/linux/tools/perf'
[acme@zoo linux]$ ls /tmp/foo/tests/
[acme@zoo linux]$ 

Regards,

- Arnaldo

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 8b63dbdff197..331a0377da1f 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -590,7 +590,7 @@ feature-clean:
 
 tests-clean:
 	$(call QUIET_CLEAN, tests)
-	$(Q)find $(OUTPUT)tests -name '*.o' -delete -o -name '\.*.cmd' -delete
+	$(Q)$(test -d $(OUTPUT)tests && find $(OUTPUT)tests -name '*.o' -delete -o -name '\.*.cmd' -delete)
 	$(Q)$(RM) $(OUTPUT)tests/llvm-src-{base,kbuild,prologue}.c
 
 clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean config-clean feature-clean tests-clean
--
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