linux-kernel - [PATCH] perf: Print debuginfod queries if -v option is used

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Date:   Fri, 12 Aug 2022 13:43:53 +0200
From:   Martin Liška <mliska@...e.cz>
To:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>
Subject: [PATCH] perf: Print debuginfod queries if -v option is used

When ending a perf record session, the querying of a debuginfod
server can take quite some time. Inform a user about it when
-v options is used.

Signed-off-by: Martin Liska <mliska@...e.cz>
---
 tools/perf/util/build-id.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 0cc68cdd84c8..d1cfce0613ee 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -653,7 +653,9 @@ static char *build_id_cache__find_debug(const char *sbuild_id,
 
 #ifdef HAVE_DEBUGINFOD_SUPPORT
 	if (realname == NULL) {
-		debuginfod_client* c = debuginfod_begin();
+		debuginfod_client* c;
+		pr_debug("Downloading debug info with build id %s\n", sbuild_id);
+		c = debuginfod_begin();
 		if (c != NULL) {
 			int fd = debuginfod_find_debuginfo(c,
 					(const unsigned char*)sbuild_id, 0,
-- 
2.37.1