From ba8108466af6fc4181c14621f0d79d5af38f5433 Mon Sep 17 00:00:00 2001
From: Ogneyar <ya13th@mail.ru>
Date: Thu, 22 Aug 2024 13:56:33 +0300
Subject: [PATCH] =?UTF-8?q?=D0=B4=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=B8=D0=B5=20=D0=B3=D0=B5=D0=BD=D0=B5=D1=80=D0=B0=D1=82?=
 =?UTF-8?q?=D0=BE=D1=80=D0=B0=20yield?=
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---
 cores/arduino/Arduino.h |  2 +-
 cores/arduino/hooks.c   | 31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 cores/arduino/hooks.c

diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h
index 62e562a..291a780 100644
--- a/cores/arduino/Arduino.h
+++ b/cores/arduino/Arduino.h
@@ -45,7 +45,7 @@ extern "C" {
 extern void setup(void) ;
 extern void loop(void) ;
 
-// void yield(void)
+void yield(void);
 
 #ifdef __cplusplus
 } // extern "C"
diff --git a/cores/arduino/hooks.c b/cores/arduino/hooks.c
new file mode 100644
index 0000000..641eabc
--- /dev/null
+++ b/cores/arduino/hooks.c
@@ -0,0 +1,31 @@
+/*
+  Copyright (c) 2012 Arduino.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/**
+ * Empty yield() hook.
+ *
+ * This function is intended to be used by library writers to build
+ * libraries or sketches that supports cooperative threads.
+ *
+ * Its defined as a weak symbol and it can be redefined to implement a
+ * real cooperative scheduler.
+ */
+static void __empty() {
+	// Empty
+}
+void yield(void) __attribute__ ((weak, alias("__empty")));