[PATCH 1/3] perf tools: Move callchain help messages to callchain.h

[Namhyung Kim <namhyung@kernel.org>]

These messages will be used by 'perf top' in the next patch.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Chandler Carruth <chandlerc@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-record.c |  8 +-------
 tools/perf/builtin-report.c | 10 +++++++---
 tools/perf/util/callchain.h | 12 ++++++++++++
 3 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 24ace2f318c1..1a117623d396 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1010,13 +1010,7 @@ static struct record record = {
 	},
 };
 
-#define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace) recording: "
-
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
-const char record_callchain_help[] = CALLCHAIN_HELP "fp dwarf lbr";
-#else
-const char record_callchain_help[] = CALLCHAIN_HELP "fp lbr";
-#endif
+const char record_callchain_help[] = CALLCHAIN_RECORD_HELP;
 
 /*
  * XXX Will stay a global variable till we fix builtin-script.c to stop messing
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 3b23b25d1589..18a8c52d921e 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -625,6 +625,9 @@ parse_percent_limit(const struct option *opt, const char *str,
 	return 0;
 }
 
+const char report_callchain_help[] = "Display callchains using " CALLCHAIN_REPORT_HELP ". "
+				     "Default: graph,0.5,caller";
+
 int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	struct perf_session *session;
@@ -699,9 +702,10 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		   "regex filter to identify parent, see: '--sort parent'"),
 	OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
 		    "Only display entries with parent-match"),
-	OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order[,branch]",
-		     "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit, callchain order, key (function or address), add branches. "
-		     "Default: graph,0.5,caller", &report_parse_callchain_opt, callchain_default_opt),
+	OPT_CALLBACK_DEFAULT('g', "call-graph", &report,
+			     "output_type,min_percent[,print_limit],call_order[,branch]",
+			     report_callchain_help, &report_parse_callchain_opt,
+			     callchain_default_opt),
 	OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
 		    "Accumulate callchains of children and show total overhead as well"),
 	OPT_INTEGER(0, "max-stack", &report.max_stack,
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index acee2b3cd801..c9e3a2e85a72 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -7,6 +7,18 @@
 #include "event.h"
 #include "symbol.h"
 
+#define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace) recording: "
+
+#ifdef HAVE_DWARF_UNWIND_SUPPORT
+#define CALLCHAIN_RECORD_HELP  CALLCHAIN_HELP "fp dwarf lbr"
+#else
+#define CALLCHAIN_RECORD_HELP  CALLCHAIN_HELP "fp lbr"
+#endif
+
+#define CALLCHAIN_REPORT_HELP  "output_type (graph, flat, fractal, or none), " \
+	"min percent threshold, optional print limit, callchain order, " \
+	"key (function or address), add branches"
+
 enum perf_call_graph_mode {
 	CALLCHAIN_NONE,
 	CALLCHAIN_FP,
-- 
2.6.0