linux-kernel - [PATCH 027/107] perf trace: Add "sendfile64" alias to the "sendfile" syscall

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Date:   Mon, 29 Jul 2019 23:54:50 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Luis Cláudio Gonçalves 
        <lclaudio@...hat.com>
Subject: [PATCH 027/107] perf trace: Add "sendfile64" alias to the "sendfile" syscall

From: Arnaldo Carvalho de Melo <acme@...hat.com>

We were looking in tracefs for:

  /sys/kernel/debug/tracing/events/syscalls/sys_enter_sendfile/format when

what is there is just

  /sys/kernel/debug/tracing/events/syscalls/sys_enter_sendfile/format

Its the same id, 40 in x86_64, so just add an alias and let the existing
logic take care of that.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: https://lkml.kernel.org/n/tip-km2hmg7hru6u4pawi5fi903q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-trace.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 200fbe33d5de..ca28c48f812e 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -895,6 +895,7 @@ static struct syscall_fmt {
 	  .arg = { [0] = { .scnprintf = SCA_SECCOMP_OP,	   /* op */ },
 		   [1] = { .scnprintf = SCA_SECCOMP_FLAGS, /* flags */ }, }, },
 	{ .name	    = "select", .timeout = true, },
+	{ .name	    = "sendfile", .alias = "sendfile64", },
 	{ .name	    = "sendmmsg",
 	  .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, },
 	{ .name	    = "sendmsg",
-- 
2.21.0