perf usage: Move usage strings

The usage function is part of util.h, move the usage strings there
too.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Chengdong Li <chengdongli@tencent.com>
Cc: Denis Nikitin <denik@chromium.org>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Raul Silvera <rsilvera@google.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-help.c

@@ -14,6 +14,7 @@
 #include <subcmd/run-command.h>
 #include <subcmd/help.h>
 #include "util/debug.h"
+#include "util/util.h"
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/zalloc.h>

tools/perf/builtin.h

@@ -2,9 +2,6 @@
 #ifndef BUILTIN_H
 #define BUILTIN_H
 
-extern const char perf_usage_string[];
-extern const char perf_more_info_string[];
-
 void list_common_cmds_help(void);
 const char *help_unknown_cmd(const char *cmd);
 

tools/perf/perf.c

@@ -39,12 +39,6 @@
 #include <linux/string.h>
 #include <linux/zalloc.h>
 
-const char perf_usage_string[] =
-	"perf [--version] [--help] [OPTIONS] COMMAND [ARGS]";
-
-const char perf_more_info_string[] =
-	"See 'perf help COMMAND' for more information on a specific command.";
-
 static int use_pager = -1;
 const char *input_name;
 

tools/perf/util/usage.c

@@ -12,6 +12,12 @@
 #include <stdlib.h>
 #include <linux/compiler.h>
 
+const char perf_usage_string[] =
+	"perf [--version] [--help] [OPTIONS] COMMAND [ARGS]";
+
+const char perf_more_info_string[] =
+	"See 'perf help COMMAND' for more information on a specific command.";
+
 static __noreturn void usage_builtin(const char *err)
 {
 	fprintf(stderr, "\n Usage: %s\n", err);

tools/perf/util/util.h

@@ -15,6 +15,9 @@
 #include <internal/cpumap.h>
 #endif
 
+extern const char perf_usage_string[];
+extern const char perf_more_info_string[];
+
 /* General helper functions */
 void usage(const char *err) __noreturn;
 void die(const char *err, ...) __noreturn __printf(1, 2);