2023-10-17 18:15:40

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: [PATCH] perf build: Remove stray '\' before that is warned about since grep 3.8

To address this grep 3.8 warning:

grep: warning: stray \ before #

Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/perf/Makefile.perf | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 456872ac410df4c0..25d5ccaec22a44fe 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -361,7 +361,7 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT
ifeq ($(CONFIG_LIBTRACEEVENT),y)
PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
else
- PYTHON_EXT_SRCS := $(shell grep -v '^\#\|util/trace-event.c' util/python-ext-sources)
+ PYTHON_EXT_SRCS := $(shell grep -v '^#\|util/trace-event.c' util/python-ext-sources)
endif

PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBAPI)
--
2.41.0


2023-10-17 19:03:13

by Namhyung Kim

[permalink] [raw]
Subject: Re: [PATCH] perf build: Remove stray '\' before that is warned about since grep 3.8

Hi Arnaldo,

On Tue, Oct 17, 2023 at 11:15 AM Arnaldo Carvalho de Melo
<[email protected]> wrote:
>
> To address this grep 3.8 warning:
>
> grep: warning: stray \ before #
>
> Cc: Adrian Hunter <[email protected]>
> Cc: Ian Rogers <[email protected]>
> Cc: Jiri Olsa <[email protected]>
> Cc: Namhyung Kim <[email protected]>
> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
> ---
> tools/perf/Makefile.perf | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index 456872ac410df4c0..25d5ccaec22a44fe 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -361,7 +361,7 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT
> ifeq ($(CONFIG_LIBTRACEEVENT),y)
> PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)

Do we need to change it here too? Otherwise looks good

Acked-by: Namhyung Kim <[email protected]>

Thanks,
Namhyung


> else
> - PYTHON_EXT_SRCS := $(shell grep -v '^\#\|util/trace-event.c' util/python-ext-sources)
> + PYTHON_EXT_SRCS := $(shell grep -v '^#\|util/trace-event.c' util/python-ext-sources)
> endif
>
> PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBAPI)
> --
> 2.41.0
>

2023-10-20 20:34:49

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: Re: [PATCH] perf build: Remove stray '\' before that is warned about since grep 3.8

Em Tue, Oct 17, 2023 at 12:02:20PM -0700, Namhyung Kim escreveu:
> Hi Arnaldo,
>
> On Tue, Oct 17, 2023 at 11:15 AM Arnaldo Carvalho de Melo
> <[email protected]> wrote:
> >
> > To address this grep 3.8 warning:
> >
> > grep: warning: stray \ before #
> >
> > Cc: Adrian Hunter <[email protected]>
> > Cc: Ian Rogers <[email protected]>
> > Cc: Jiri Olsa <[email protected]>
> > Cc: Namhyung Kim <[email protected]>
> > Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
> > ---
> > tools/perf/Makefile.perf | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> > index 456872ac410df4c0..25d5ccaec22a44fe 100644
> > --- a/tools/perf/Makefile.perf
> > +++ b/tools/perf/Makefile.perf
> > @@ -361,7 +361,7 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT
> > ifeq ($(CONFIG_LIBTRACEEVENT),y)
> > PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
>
> Do we need to change it here too? Otherwise looks good

I think I did tests and simply removing the \ in this case will comment
out the rest of the line after the #, IIRC we would have to enclose it
in '', like

PYTHON_EXT_SRCS := $(shell grep -v '^\#' util/python-ext-sources)

But then if it works as-is, why pollute the patch? :-)

In general the less lines you touch in a patch, the better, don't fix
what isn't broken, helps reviewing, etc. :-)

- Arnaldo

> Acked-by: Namhyung Kim <[email protected]>
>
> Thanks,
> Namhyung
>
>
> > else
> > - PYTHON_EXT_SRCS := $(shell grep -v '^\#\|util/trace-event.c' util/python-ext-sources)
> > + PYTHON_EXT_SRCS := $(shell grep -v '^#\|util/trace-event.c' util/python-ext-sources)
> > endif
> >
> > PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBAPI)
> > --
> > 2.41.0
> >

--

- Arnaldo

2023-10-20 21:16:36

by Namhyung Kim

[permalink] [raw]
Subject: Re: [PATCH] perf build: Remove stray '\' before that is warned about since grep 3.8

On Fri, Oct 20, 2023 at 1:34 PM Arnaldo Carvalho de Melo
<[email protected]> wrote:
>
> Em Tue, Oct 17, 2023 at 12:02:20PM -0700, Namhyung Kim escreveu:
> > Hi Arnaldo,
> >
> > On Tue, Oct 17, 2023 at 11:15 AM Arnaldo Carvalho de Melo
> > <[email protected]> wrote:
> > >
> > > To address this grep 3.8 warning:
> > >
> > > grep: warning: stray \ before #
> > >
> > > Cc: Adrian Hunter <[email protected]>
> > > Cc: Ian Rogers <[email protected]>
> > > Cc: Jiri Olsa <[email protected]>
> > > Cc: Namhyung Kim <[email protected]>
> > > Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
> > > ---
> > > tools/perf/Makefile.perf | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> > > index 456872ac410df4c0..25d5ccaec22a44fe 100644
> > > --- a/tools/perf/Makefile.perf
> > > +++ b/tools/perf/Makefile.perf
> > > @@ -361,7 +361,7 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT
> > > ifeq ($(CONFIG_LIBTRACEEVENT),y)
> > > PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
> >
> > Do we need to change it here too? Otherwise looks good
>
> I think I did tests and simply removing the \ in this case will comment
> out the rest of the line after the #, IIRC we would have to enclose it
> in '', like
>
> PYTHON_EXT_SRCS := $(shell grep -v '^\#' util/python-ext-sources)
>
> But then if it works as-is, why pollute the patch? :-)
>
> In general the less lines you touch in a patch, the better, don't fix
> what isn't broken, helps reviewing, etc. :-)

Agreed, thanks!
Namhyung

2023-10-24 15:13:01

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: Re: [PATCH] perf build: Remove stray '\' before that is warned about since grep 3.8

Em Fri, Oct 20, 2023 at 02:15:03PM -0700, Namhyung Kim escreveu:
> On Fri, Oct 20, 2023 at 1:34 PM Arnaldo Carvalho de Melo > <[email protected]> wrote:
> > Em Tue, Oct 17, 2023 at 12:02:20PM -0700, Namhyung Kim escreveu:
> > > On Tue, Oct 17, 2023 at 11:15 AM Arnaldo Carvalho de Melo <[email protected]> wrote:
> > > > To address this grep 3.8 warning:

> > > > grep: warning: stray \ before #

> > > > +++ b/tools/perf/Makefile.perf
> > > > @@ -361,7 +361,7 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT
> > > > ifeq ($(CONFIG_LIBTRACEEVENT),y)
> > > > PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)

> > > Do we need to change it here too? Otherwise looks good

> > I think I did tests and simply removing the \ in this case will comment
> > out the rest of the line after the #, IIRC we would have to enclose it
> > in '', like
> >
> > PYTHON_EXT_SRCS := $(shell grep -v '^\#' util/python-ext-sources)
> >
> > But then if it works as-is, why pollute the patch? :-)
> >
> > In general the less lines you touch in a patch, the better, don't fix
> > what isn't broken, helps reviewing, etc. :-)
>
> Agreed, thanks!
> Namhyung

But while this makes it build in newer systems, it breaks on older ones:

Makefile.perf:364: *** unterminated call to function 'shell': missing ')'. Stop.
make[1]: *** [Makefile.perf:242: sub-make] Error 2
make: *** [Makefile:70: all] Error 2
make: Leaving directory '/git/perf-6.6.0-rc1/tools/perf'
+ exit 1
[perfbuilder@five ~]$ dsh opensuse:15.4
sh-4.4$ rpm -q grep make
grep-3.1-150000.4.6.1.x86_64
make-4.2.1-7.3.2.x86_64
sh-4.4$

Makefile.perf:364: *** unterminated call to function 'shell': missing ')'. Stop.
make[1]: *** [Makefile.perf:242: sub-make] Error 2
make: *** [Makefile:70: all] Error 2
make: Leaving directory '/git/perf-6.6.0-rc1/tools/perf'
+ exit 1
[perfbuilder@five ~]$ dsh ubuntu:20.04
$ dpkg -l make grep
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
ii grep 3.4-1 amd64 GNU grep, egrep and fgrep
ii make 4.2.1-1.2 amd64 utility for directing compilation
$

Both these containers don't have libtraceevent-devel installed (not
available).

:-\

- Arnaldo