1 files changed, 22 insertions, 2 deletions
diff --git a/tools/perf/ui/setup.c b/tools/perf/ui/setup.c
index 700335cde618..ff800047e697 100644
--- a/tools/perf/ui/setup.c
+++ b/tools/perf/ui/setup.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
-#include <pthread.h>
 #include <dlfcn.h>
+#include <signal.h>
 #include <unistd.h>
 
 #include <subcmd/pager.h>
@@ -8,7 +8,7 @@
 #include "../util/hist.h"
 #include "ui.h"
 
-pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
+struct mutex ui__lock;
 void *perf_gtk_handle;
 int use_browser = -1;
 
@@ -76,6 +76,7 @@ int stdio__config_color(const struct option *opt __maybe_unused,
 
 void setup_browser(bool fallback_to_pager)
 {
+	mutex_init(&ui__lock);
 	if (use_browser < 2 && (!isatty(1) || dump_trace))
 		use_browser = 0;
 
@@ -118,4 +119,23 @@ void exit_browser(bool wait_for_ok)
 	default:
 		break;
 	}
+	mutex_destroy(&ui__lock);
+}
+
+void pthread__block_sigwinch(void)
+{
+	sigset_t set;
+
+	sigemptyset(&set);
+	sigaddset(&set, SIGWINCH);
+	pthread_sigmask(SIG_BLOCK, &set, NULL);
+}
+
+void pthread__unblock_sigwinch(void)
+{
+	sigset_t set;
+
+	sigemptyset(&set);
+	sigaddset(&set, SIGWINCH);
+	pthread_sigmask(SIG_UNBLOCK, &set, NULL);
 }