Re-sync with upstream and stripping away none kernel related.

portable/GCC/RL78/portasm.S

@@ -0,0 +1,80 @@
+/*
+ * FreeRTOS Kernel V10.3.0
+ * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 1 tab == 4 spaces!
+ */
+
+#include "FreeRTOSConfig.h"
+#include "ISR_Support.h"
+
+	.global    _vPortYield
+	.global    _vPortStartFirstTask
+	.global    _vPortTickISR
+
+	.extern    _vTaskSwitchContext
+	.extern    _xTaskIncrementTick
+
+	.text
+	.align 2
+
+/* FreeRTOS yield handler.  This is installed as the BRK software interrupt
+handler. */
+_vPortYield:
+	/* Save the context of the current task. */
+	portSAVE_CONTEXT
+	/* Call the scheduler to select the next task. */
+	call      !!_vTaskSwitchContext
+	/* Restore the context of the next task to run. */
+	portRESTORE_CONTEXT
+	retb
+
+
+/* Starts the scheduler by restoring the context of the task that will execute
+first. */
+	.align 2
+_vPortStartFirstTask:
+	/* Restore the context of whichever task will execute first. */
+	portRESTORE_CONTEXT
+	/* An interrupt stack frame is used so the task is started using RETI. */
+	reti
+
+/* FreeRTOS tick handler.  This is installed as the interval timer interrupt
+handler. */
+	.align 2
+_vPortTickISR:
+
+	/* Save the context of the currently executing task. */
+	portSAVE_CONTEXT
+	/* Call the RTOS tick function. */
+	call      !!_xTaskIncrementTick
+#if configUSE_PREEMPTION == 1
+	/* Select the next task to run. */
+	call      !!_vTaskSwitchContext
+#endif
+	/* Retore the context of whichever task will run next. */
+	portRESTORE_CONTEXT
+	reti
+
+	.end
+