From: Jiri Slaby <jirislaby@kernel.org>
To: Ian Rogers <irogers@google.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-trace-devel@vger.kernel.org,
Tzvetomir Stoyanov <tz.stoyanov@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>
Cc: eranian@google.com
Subject: [was: libtraceevent: Increase libtraceevent logging when verbose]
Date: Mon, 3 Jan 2022 09:25:26 +0100 [thread overview]
Message-ID: <c19ca2a2-54c9-88b1-b705-5a2cd4dd9580@kernel.org> (raw)
In-Reply-To: <bc2b0786-8965-1bcd-2316-9d9bb37b9c31@kernel.org>
Ping -- perf build is still broken in 5.16-rc8 due to this.
On 16. 12. 21, 9:07, Jiri Slaby wrote:
> Hi,
>
> On 23. 09. 21, 2:10, Ian Rogers wrote:
>> libtraceevent has added more levels of debug printout and with changes
>> like:
>> https://lore.kernel.org/linux-trace-devel/20210507095022.1079364-3-tz.stoyanov@gmail.com
>>
>> previously generated output like "registering plugin" is no longer
>> displayed. This change makes it so that if perf's verbose debug output
>> is enabled then the debug and info libtraceevent messages can be
>> displayed.
>> The code is conditionally enabled based on the libtraceevent version as
>> discussed in the RFC:
>> https://lore.kernel.org/lkml/20210610060643.595673-1-irogers@google.com/
>>
>> v2. Is a rebase and handles the case of building without
>> LIBTRACEEVENT_DYNAMIC.
>
> It breaks build with LIBTRACEEVENT_DYNAMIC and version 1.3.0:
> > util/debug.c: In function ‘perf_debug_option’:
> > util/debug.c:243:17: error: implicit declaration of function
> ‘tep_set_loglevel’ [-Werror=implicit-function-declaration]
> > 243 | tep_set_loglevel(TEP_LOG_INFO);
> > | ^~~~~~~~~~~~~~~~
> > util/debug.c:243:34: error: ‘TEP_LOG_INFO’ undeclared (first use in
> this function); did you mean ‘TEP_PRINT_INFO’?
> > 243 | tep_set_loglevel(TEP_LOG_INFO);
> > | ^~~~~~~~~~~~
> > | TEP_PRINT_INFO
> > util/debug.c:243:34: note: each undeclared identifier is reported
> only once for each function it appears in
> > util/debug.c:245:34: error: ‘TEP_LOG_DEBUG’ undeclared (first use in
> this function)
> > 245 | tep_set_loglevel(TEP_LOG_DEBUG);
> > | ^~~~~~~~~~~~~
> > util/debug.c:247:34: error: ‘TEP_LOG_ALL’ undeclared (first use in
> this function)
> > 247 | tep_set_loglevel(TEP_LOG_ALL);
> > | ^~~~~~~~~~~
>
> It is because the gcc's command line looks like:
> gcc
> ...
> -I/home/abuild/rpmbuild/BUILD/tools/lib/
> ...
> -DLIBTRACEEVENT_VERSION=65790
> ...
>
> So:
>
>
>> --- a/tools/perf/util/debug.c
>> +++ b/tools/perf/util/debug.c
>> @@ -24,6 +24,16 @@
>> #include "util/parse-sublevel-options.h"
>> #include <linux/ctype.h>
>> +#include <traceevent/event-parse.h>
>
> /home/abuild/rpmbuild/BUILD/tools/lib/traceevent/event-parse.h is taken
> here.
>
>> @@ -228,6 +238,15 @@ int perf_debug_option(const char *str)
>> /* Allow only verbose value in range (0, 10), otherwise set 0. */
>> verbose = (verbose < 0) || (verbose > 10) ? 0 : verbose;
>> +#if MAKE_LIBTRACEEVENT_VERSION(1, 3, 0) <= LIBTRACEEVENT_VERSION
>
> But
> -DLIBTRACEEVENT_VERSION=65790
> is taken here (which is 1.3.0).
>
>> + if (verbose == 1)
>> + tep_set_loglevel(TEP_LOG_INFO);
>> + else if (verbose == 2)
>> + tep_set_loglevel(TEP_LOG_DEBUG);
>> + else if (verbose >= 3)
>> + tep_set_loglevel(TEP_LOG_ALL);
>> +#endif
>> +
>> return 0;
>> }
>
> regards,
--
js
suse labs
next prev parent reply other threads:[~2022-01-03 8:25 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-23 0:10 [PATCH v3 1/4] perf: Enable libtracefs dynamic linking Ian Rogers
2021-09-23 0:10 ` [PATCH v3 2/4] perf: Add define for libtraceevent version Ian Rogers
2021-09-23 0:10 ` [PATCH v3 3/4] perf: Add define for libtracefs version Ian Rogers
2021-09-23 0:10 ` [PATCH v3 4/4] libtraceevent: Increase libtraceevent logging when verbose Ian Rogers
2021-12-16 8:07 ` Jiri Slaby
2022-01-03 8:25 ` Jiri Slaby [this message]
2022-01-03 15:04 ` [was: libtraceevent: Increase libtraceevent logging when verbose] Arnaldo Carvalho de Melo
2022-01-03 15:07 ` Steven Rostedt
2022-01-03 15:15 ` Arnaldo Carvalho de Melo
2022-01-04 6:17 ` Jiri Slaby
2022-01-06 7:01 ` Ian Rogers
2021-09-28 19:01 ` [PATCH v3 1/4] perf: Enable libtracefs dynamic linking Arnaldo Carvalho de Melo
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