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Commit aec1930b authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf trace: Add aliases for some syscalls 

What we get from audit_syscall_to_name isn't what we find in the
syscalls: tracepoint events, so add the alias that allows the tool to
find prctl, fstat, fstatat and stat.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent bb2d17a0

tools/perf/builtin-trace.c

+18 −8
Original line number Original line Diff line number Diff line
@@ -9,15 +9,20 @@ 




static struct syscall_fmt {

static struct syscall_fmt {

	const char *name;

	const char *name;

	const char *alias;

	bool	   errmsg;

	bool	   errmsg;

	bool	   timeout;

	bool	   timeout;

} syscall_fmts[] = {

} syscall_fmts[] = {

	{ .name	    = "arch_prctl", .errmsg = true, .alias = "prctl", },

	{ .name	    = "fstat",	    .errmsg = true, .alias = "newfstat", },

	{ .name	    = "fstatat",    .errmsg = true, .alias = "newfstatat", },

	{ .name	    = "futex",	    .errmsg = true, },

	{ .name	    = "futex",	    .errmsg = true, },

	{ .name	    = "poll",	    .errmsg = true, .timeout = true, },

	{ .name	    = "poll",	    .errmsg = true, .timeout = true, },

	{ .name	    = "ppoll",	    .errmsg = true, .timeout = true, },

	{ .name	    = "ppoll",	    .errmsg = true, .timeout = true, },

	{ .name	    = "read",	    .errmsg = true, },

	{ .name	    = "read",	    .errmsg = true, },

	{ .name	    = "recvfrom",   .errmsg = true, },

	{ .name	    = "recvfrom",   .errmsg = true, },

	{ .name	    = "select",	    .errmsg = true, .timeout = true, },

	{ .name	    = "select",	    .errmsg = true, .timeout = true, },

	{ .name	    = "stat",	    .errmsg = true, .alias = "newstat", },

};

};





static int syscall_fmt__cmp(const void *name, const void *fmtp)

static int syscall_fmt__cmp(const void *name, const void *fmtp)
@@ -74,10 +79,15 @@ static int trace__read_syscall_info(struct trace *trace, int id) 
	if (sc->name == NULL)

	if (sc->name == NULL)

		return -1;

		return -1;





	sc->fmt = syscall_fmt__find(sc->name);



	snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);

	snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);

	sc->tp_format = event_format__new("syscalls", tp_name);





	if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) {

		snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias);

		sc->tp_format = event_format__new("syscalls", tp_name);

		sc->tp_format = event_format__new("syscalls", tp_name);

	sc->fmt = syscall_fmt__find(sc->name);

	}





	return sc->tp_format != NULL ? 0 : -1;

	return sc->tp_format != NULL ? 0 : -1;

}

}