linux-kernel - Re: [PATCH 2/2] perf tests: Show the inner make output when an error happens

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Date:	Fri, 6 Jun 2014 12:45:47 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	David Ahern <dsahern@...il.com>,
	Don Zickus <dzickus@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 2/2] perf tests: Show the inner make output when an error
 happens

Em Fri, Jun 06, 2014 at 04:50:23PM +0200, Jiri Olsa escreveu:
> On Fri, Jun 06, 2014 at 11:11:49AM -0300, Arnaldo Carvalho de Melo wrote:
> > From: Arnaldo Carvalho de Melo <acme@...hat.com>
> > +++ b/tools/perf/tests/make
> > @@ -205,8 +205,7 @@ $(run):
> >  	( eval $$cmd ) >> $@ 2>&1; \
> >  	echo "  test: $(call test,$@)" >> $@ 2>&1; \
> >  	$(call test,$@) && \
> > -	rm -f $@ \
> > -	rm -rf $$TMP_DEST
> > +	rm -rf $@ $$TMP_DEST || cat $@
 
> I like that we show the log, but we need to fail the target
> so the processing is stopped and the rest is not executed,
> like adding this:
 
>     .... cat $@ && false
  
> >  $(run_O):
> >  	$(call clean)
 
> also you need to put same change to $(run_O) target

Updated patch:

commit 40cb3da56c614bb3ea42ce4b99e379859d8be9a5
Author: Arnaldo Carvalho de Melo <acme@...hat.com>
Date:   Thu Jun 5 17:15:47 2014 -0300

    perf tests: Show the inner make output when an error happens
    
    Before:
    
      [acme@zoo linux]$ make -C tools/perf -f tests/make make_static
      make: Entering directory `/home/git/linux/tools/perf'
      - make_static: cd . && make -f Makefile DESTDIR=/tmp/tmp.JcWuM4Zu9f LDFLAGS=-static
      make: *** [make_static] Error 1
      make: Leaving directory `/home/git/linux/tools/perf'
      [acme@zoo linux]$
    
    After:
    
      [acme@zoo linux]$ make -C tools/perf -f tests/make make_static
      make: Entering directory `/home/git/linux/tools/perf'
      - make_static: cd . && make -f Makefile DESTDIR=/tmp/tmp.X3su83i14u LDFLAGS=-static
      cd . && make -f Makefile DESTDIR=/tmp/tmp.X3su83i14u LDFLAGS=-static
        BUILD:   Doing 'make -j4' parallel build
      config/Makefile:303: *** No static glibc found, please install glibc-static.  Stop.
      make[1]: *** [all] Error 2
        test: test -x ./perf
      make: Leaving directory `/home/git/linux/tools/perf'
      [acme@zoo linux]$
    
    Cc: Adrian Hunter <adrian.hunter@...el.com>
    Cc: David Ahern <dsahern@...il.com>
    Cc: Don Zickus <dzickus@...hat.com>
    Cc: Frederic Weisbecker <fweisbec@...il.com>
    Cc: Ingo Molnar <mingo@...nel.org>
    Cc: Mike Galbraith <efault@....de>
    Cc: Namhyung Kim <namhyung@...nel.org>
    Cc: Paul Mackerras <paulus@...ba.org>
    Cc: Peter Zijlstra <peterz@...radead.org>
    Cc: Stephane Eranian <eranian@...gle.com>
    Link: http://lkml.kernel.org/n/tip-h4kby5wyp6nfev3882rzm3r9@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>

diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 2f92d6e7ee00..69a71ff84e01 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -205,8 +205,7 @@ $(run):
 	( eval $$cmd ) >> $@ 2>&1; \
 	echo "  test: $(call test,$@)" >> $@ 2>&1; \
 	$(call test,$@) && \
-	rm -f $@ \
-	rm -rf $$TMP_DEST
+	rm -rf $@ $$TMP_DEST || (cat $@ ; false)
 
 $(run_O):
 	$(call clean)
@@ -217,9 +216,7 @@ $(run_O):
 	( eval $$cmd ) >> $@ 2>&1 && \
 	echo "  test: $(call test_O,$@)" >> $@ 2>&1; \
 	$(call test_O,$@) && \
-	rm -f $@ && \
-	rm -rf $$TMP_O \
-	rm -rf $$TMP_DEST
+	rm -rf $@ $$TMP_O $$TMP_DEST || (cat $@ ; false)
 
 tarpkg:
 	@cmd="$(PERF)/tests/perf-targz-src-pkg $(PERF)"; \
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