linux-kernel - Re: [PATCH v1 02/15] perf report: output trace file name in raw trace dump

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Date:   Wed, 14 Oct 2020 00:23:02 +0300
From:   Alexey Budankov <alexey.budankov@...ux.intel.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 02/15] perf report: output trace file name in raw trace
 dump

Hi,

On 13.10.2020 22:54, Jiri Olsa wrote:
> On Mon, Oct 12, 2020 at 11:54:24AM +0300, Alexey Budankov wrote:
>>
>> Output path of a trace file into raw dump (-D) <file_offset>@<path/file>.
>> Print offset of PERF_RECORD_COMPRESSED record instead of zero for
>> decompressed records:
>>   0x2226a@...f.data [0x30]: event: 9
>> or
>>   0x15cc36@...f.data/data.7 [0x30]: event: 9
>>
>> Signed-off-by: Alexey Budankov <alexey.budankov@...ux.intel.com>
> 
> hi,
> I'm getting:
> 
>   CC       builtin-inject.o
> builtin-inject.c: In function ‘cmd_inject’:
> builtin-inject.c:850:18: error: initialization of ‘int (*)(struct perf_session *, union perf_event *, u64,  const char *)’ {aka ‘int (*)(struct perf_session *, union perf_event *, long unsigned int,  const char *)’} from incompatible pointer type ‘int (*)(struct perf_session *, union perf_event *, u64)’ {aka ‘int (*)(struct perf_session *, union perf_event *, long unsigned int)’} [-Werror=incompatible-pointer-types]
>   850 |    .compressed = perf_event__repipe_op4_synth,
>       |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> builtin-inject.c:850:18: note: (near initialization for ‘inject.tool.compressed’)
> 
> it's probably recent build id changes 

Looks like that's it. Fix is in v2 and follows:

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index f3f965157d69..35c005b8da7f 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -106,7 +106,8 @@ static int perf_event__repipe_op2_synth(struct perf_session *session,
 
 static int perf_event__repipe_op4_synth(struct perf_session *session,
 					union perf_event *event,
-					u64 data __maybe_unused)
+					u64 data __maybe_unused,
+					const char *str __maybe_unused)
 {
 	return perf_event__repipe_synth(session->tool, event);
 }

Thanks!
Alexei