From da54520beb742ee4144b5d8222adcabcd3d3dcef Mon Sep 17 00:00:00 2001
From: John Boiles <johnaboiles@gmail.com>
Date: Wed, 12 Feb 2025 10:37:51 -0800
Subject: [PATCH] POSIX Simulator: Assert if vPortYield called from a
 non-FreeRTOS thread

---
 portable/ThirdParty/GCC/Posix/port.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/portable/ThirdParty/GCC/Posix/port.c b/portable/ThirdParty/GCC/Posix/port.c
index ff386ac9f..1153e7f67 100644
--- a/portable/ThirdParty/GCC/Posix/port.c
+++ b/portable/ThirdParty/GCC/Posix/port.c
@@ -384,6 +384,10 @@ static void prvPortYieldFromISR( void )
 
 void vPortYield( void )
 {
+    /* This must never be called from outside of a FreeRTOS-owned thread, or
+     * the thread could get stuck in a suspended state. */
+    configASSERT( prvIsFreeRTOSThread() == pdTRUE );
+
     vPortEnterCritical();
 
     prvPortYieldFromISR();