linux-kernel - [PATCH 03/24] perf daemon: Add base option

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Date:   Sun, 31 Jan 2021 00:48:35 +0100
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Ingo Molnar <mingo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Michael Petlan <mpetlan@...hat.com>,
        Ian Rogers <irogers@...gle.com>,
        Stephane Eranian <eranian@...gle.com>,
        Alexei Budankov <abudankov@...wei.com>
Subject: [PATCH 03/24] perf daemon: Add base option

Adding base option allowing user to specify base directory.
It will have precedence over config file base definition
coming in following patches.

Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/builtin-daemon.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/builtin-daemon.c b/tools/perf/builtin-daemon.c
index 1f2393faad75..8d0ac44ec808 100644
--- a/tools/perf/builtin-daemon.c
+++ b/tools/perf/builtin-daemon.c
@@ -6,6 +6,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
+#include <errno.h>
 #include "builtin.h"
 #include "perf.h"
 #include "debug.h"
@@ -15,6 +16,7 @@
 struct daemon {
 	const char		*config;
 	char			*config_real;
+	const char		*base_user;
 	char			*base;
 	FILE			*out;
 	char			 perf[PATH_MAX];
@@ -38,6 +40,7 @@ static void sig_handler(int sig __maybe_unused)
 static void daemon__free(struct daemon *daemon)
 {
 	free(daemon->config_real);
+	free(daemon->base);
 }
 
 static void daemon__exit(struct daemon *daemon)
@@ -47,6 +50,12 @@ static void daemon__exit(struct daemon *daemon)
 
 static int setup_config(struct daemon *daemon)
 {
+	if (daemon->base_user) {
+		daemon->base = strdup(daemon->base_user);
+		if (!daemon->base)
+			return -ENOMEM;
+	}
+
 	if (daemon->config) {
 		char *real = realpath(daemon->config, NULL);
 
@@ -109,6 +118,8 @@ int cmd_daemon(int argc, const char **argv)
 		OPT_INCR('v', "verbose", &verbose, "be more verbose"),
 		OPT_STRING(0, "config", &__daemon.config,
 			"config file", "config file path"),
+		OPT_STRING(0, "base", &__daemon.base_user,
+			"directory", "base directory"),
 		OPT_END()
 	};
 
-- 
2.29.2