freertos: add `xQueueGenericReceive` for backward compatibility

Add `xQueueGenericReceive` as that has been removed in FreeRTOS10.
This in turn breaks pre-builts libraries with earlier IDF releases
relying on this API.

Closes https://github.com/espressif/esp-wolfssl/issues/6

components/freertos/CMakeLists.txt

@@ -54,7 +54,8 @@ list(APPEND srcs
     "tasks.c"
     "timers.c"
     "stream_buffer.c"
-    "FreeRTOS-openocd.c")
+    "FreeRTOS-openocd.c"
+    "freertos_v8_compat.c")
 
 if(CONFIG_ESP32_IRAM_AS_8BIT_ACCESSIBLE_MEMORY)
     list(APPEND srcs "port/xtensa/xtensa_loadstore_handler.S")

components/freertos/freertos_v8_compat.c

@@ -0,0 +1,33 @@
+// Copyright 2020 Espressif Systems (Shanghai) Co., Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "FreeRTOS.h"
+#include "queue.h"
+#include "semphr.h"
+
+/* This API is kept for backward ABI compatibility with prebuilt libraries against FreeRTOS v8/v9 in ESP-IDF */
+BaseType_t xQueueGenericReceive( QueueHandle_t xQueue, void * const pvBuffer, TickType_t xTicksToWait, const BaseType_t xPeek )
+{
+	if ( xPeek == pdTRUE )
+	{
+		return xQueuePeek( xQueue, pvBuffer, xTicksToWait );
+	}
+
+	if ( pvBuffer == NULL )
+	{
+		return xQueueSemaphoreTake( xQueue, xTicksToWait );
+	}
+
+	return xQueueReceive( xQueue, pvBuffer, xTicksToWait );
+}