Synopsys ARC v1 Port: add support to Synopsys ARC v1 series cores (#110)
* Synopsys Port: Adding support to Synopsys ARC v1 series cores
ARC v1 cores include ARC605, ARC610d, and ARC710d
Signed-off-by: Yuguo Zou <yuguo.zou@synopsys.com>
* Synopsys ARC v1 port: run uncrustify to fix code style
Signed-off-by: Yuguo Zou <yuguo.zou@synopsys.com>
* Synopsys port: modify license headers, change copyright only
Signed-off-by: Yuguo Zou <yuguo.zou@synopsys.com>
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.c b/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.c
index 5f9f59f..eb368d0 100644
--- a/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.c
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.c
@@ -1,6 +1,6 @@
/*
* FreeRTOS Kernel V10.2.1
- * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * Copyright (C) 2020 Synopsys, 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
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.h b/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.h
index be55259..08ffb30 100644
--- a/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.h
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.h
@@ -1,6 +1,6 @@
/*
* FreeRTOS Kernel V10.2.1
- * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * Copyright (C) 2020 Synopsys, 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
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/arc_support.s b/portable/ThirdParty/GCC/ARC_EM_HS/arc_support.s
index 12b90d6..9c3daca 100644
--- a/portable/ThirdParty/GCC/ARC_EM_HS/arc_support.s
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/arc_support.s
@@ -1,6 +1,6 @@
/*
* FreeRTOS Kernel V10.2.1
- * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * Copyright (C) 2020 Synopsys, 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
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/freertos_tls.c b/portable/ThirdParty/GCC/ARC_EM_HS/freertos_tls.c
index 8e15400..b053389 100644
--- a/portable/ThirdParty/GCC/ARC_EM_HS/freertos_tls.c
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/freertos_tls.c
@@ -1,6 +1,6 @@
/*
* FreeRTOS Kernel V10.2.1
- * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * Copyright (C) 2020 Synopsys, 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
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/port.c b/portable/ThirdParty/GCC/ARC_EM_HS/port.c
index 8a58495..491197f 100644
--- a/portable/ThirdParty/GCC/ARC_EM_HS/port.c
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/port.c
@@ -1,6 +1,6 @@
/*
* FreeRTOS Kernel V10.2.1
- * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * Copyright (C) 2020 Synopsys, 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
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/portmacro.h b/portable/ThirdParty/GCC/ARC_EM_HS/portmacro.h
index bd18d59..142762a 100644
--- a/portable/ThirdParty/GCC/ARC_EM_HS/portmacro.h
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/portmacro.h
@@ -1,6 +1,6 @@
/*
* FreeRTOS Kernel V10.2.1
- * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * Copyright (C) 2020 Synopsys, 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
diff --git a/portable/ThirdParty/GCC/ARC_v1/arc_freertos_exceptions.c b/portable/ThirdParty/GCC/ARC_v1/arc_freertos_exceptions.c
new file mode 100644
index 0000000..6d7c857
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_v1/arc_freertos_exceptions.c
@@ -0,0 +1,51 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2020 Synopsys, 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!
+ */
+
+/**
+ * \file
+ * \brief exception processing for freertos
+ */
+
+/* #include "embARC.h" */
+
+#include "arc_freertos_exceptions.h"
+
+#ifdef __GNU__
+ extern void gnu_printf_setup( void );
+#endif
+
+/**
+ * \brief freertos related cpu exception initialization, all the interrupts handled by freertos must be not
+ * fast irqs. If fiq is needed, please install the default firq_exc_entry or your own fast irq entry into
+ * the specific interrupt exception.
+ */
+void freertos_exc_init( void )
+{
+ #ifdef __GNU__
+ gnu_printf_setup();
+ #endif
+}
diff --git a/portable/ThirdParty/GCC/ARC_v1/arc_freertos_exceptions.h b/portable/ThirdParty/GCC/ARC_v1/arc_freertos_exceptions.h
new file mode 100644
index 0000000..7264361
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_v1/arc_freertos_exceptions.h
@@ -0,0 +1,45 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2020 Synopsys, 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!
+ */
+
+#ifndef ARC_FREERTOS_EXCEPTIONS_H
+#define ARC_FREERTOS_EXCEPTIONS_H
+
+/*
+ * here, all arc cpu exceptions share the same entry, also for all interrupt
+ * exceptions
+ */
+extern void exc_entry_cpu( void ); /* cpu exception entry for freertos */
+extern void exc_entry_int( void ); /* int exception entry for freertos */
+
+/* task dispatch functions in .s */
+extern void start_r( void );
+extern void start_dispatch();
+extern void dispatch();
+
+extern void freertos_exc_init( void );
+
+#endif /* ARC_FREERTOS_EXCEPTIONS_H */
diff --git a/portable/ThirdParty/GCC/ARC_v1/arc_support.s b/portable/ThirdParty/GCC/ARC_v1/arc_support.s
new file mode 100644
index 0000000..a5f9d6a
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_v1/arc_support.s
@@ -0,0 +1,321 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2020 Synopsys, 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!
+ */
+
+/**
+ * \file
+ * \ingroup OS_FREERTOS
+ * \brief freertos support for arc processor
+ * like task dispatcher, interrupt handler
+ */
+/** @cond OS_FREERTOS_ASM_ARC_SUPPORT */
+
+/*
+ * core-dependent part in assemble language (for arc)
+ */
+#define __ASSEMBLY__
+#include "arc/arc.h"
+#include "arc/arc_asm_common.h"
+
+/*
+ * task dispatcher
+ *
+ */
+ .text
+ .align 4
+ .global dispatch
+dispatch:
+/*
+ * the pre-conditions of this routine are task context, CPU is
+ * locked, dispatch is enabled.
+ */
+ SAVE_NONSCRATCH_REGS /* save callee save registers */
+ mov r1, dispatch_r
+ PUSH r1 /* save return address */
+ ld r0, [pxCurrentTCB]
+ bl dispatcher
+
+/* return routine when task dispatch happened in task context */
+dispatch_r:
+ RESTORE_NONSCRATCH_REGS /* recover registers */
+ j [blink]
+
+/*
+ * start dispatch
+ */
+ .global start_dispatch
+ .align 4
+start_dispatch:
+/*
+ * this routine is called in the non-task context during the startup of the kernel
+ * , and all the interrupts are locked.
+ *
+ * when the dispatcher is called, the cpu is locked, no nest exception (CPU exception/interrupt).
+ * In target_initialize, all interrupt priority mask should be cleared, cpu should be
+ * locked, the interrupts outside the kernel such as fiq can be
+ * enabled.
+ */
+ clri
+ mov r0, 0
+ st r0, [exc_nest_count]
+ b dispatcher_0
+/*
+ * dispatcher
+ */
+dispatcher:
+ ld r1, [ulCriticalNesting]
+ PUSH r1 /* save critical nesting */
+ st sp, [r0] /* save stack pointer of current task, r0->pxCurrentTCB */
+ jl vTaskSwitchContext /* change the value of pxCurrentTCB */
+/*
+ * before dispatcher is called, task context | cpu locked | dispatch enabled
+ * should be satisfied. In this routine, the processor will jump
+ * into the entry of next to run task
+ *
+ * i.e. kernel mode, IRQ disabled, dispatch enabled
+ */
+dispatcher_0:
+ ld r1, [pxCurrentTCB]
+ ld sp, [r1] /* recover task stack */
+#if ARC_FEATURE_STACK_CHECK
+ lr r0, [AUX_STATUS32]
+ bclr r0, r0, AUX_STATUS_BIT_SC
+ flag r0
+ jl vPortSetStackCheck
+ lr r0, [AUX_STATUS32]
+ bset r0, r0, AUX_STATUS_BIT_SC
+ flag r0
+#endif
+ POP r0 /* get critical nesting */
+ st r0, [ulCriticalNesting]
+ POP r0 /* get return address */
+ j [r0]
+
+/*
+ * task startup routine
+ *
+ */
+ .text
+ .global start_r
+ .align 4
+start_r:
+ seti /* unlock cpu */
+ mov blink, vPortEndTask /* set return address */
+ POP r1 /* get task function body */
+ POP r0 /* get task parameters */
+ j [r1]
+
+/****** exceptions and interrupts handing ******/
+/****** entry for exception handling ******/
+ .global exc_entry_cpu
+ .align 4
+exc_entry_cpu:
+
+ EXCEPTION_PROLOGUE
+
+
+ mov blink, sp
+ mov r3, sp /* as exception handler's para(p_excinfo) */
+
+ ld r1, [exc_nest_count]
+ add r1, r1, 1
+ st r1, [exc_nest_count]
+ brne r1, 0, exc_handler_1
+/* change to exception stack if interrupt happened in task context */
+ mov sp, _e_stack
+exc_handler_1:
+ PUSH blink
+
+/* find the exception cause */
+#if ARC_FEATURE_CORE_700
+ lr r0, [AUX_ECR]
+ lsr r0, r0, 16
+ bmsk r0, r0, 7
+#endif
+ mov r1, exc_int_handler_table
+ ld.as r2, [r1, r0]
+
+ mov r0, r3
+ jl [r2] /* !!!!jump to exception handler where interrupts are not allowed! */
+
+/* interrupts are not allowed */
+ret_exc:
+ POP sp
+ mov r1, exc_nest_count
+ ld r0, [r1]
+ sub r0, r0, 1
+ st r0, [r1]
+ brne r0, 0, ret_exc_1 /* nested exception case */
+ lr r1, [AUX_IRQ_LV12]
+ brne r1, 0, ret_exc_1 /* nested or pending interrupt case */
+
+ ld r0, [context_switch_reqflg]
+ brne r0, 0, ret_exc_2
+ret_exc_1: /* return from non-task context, interrupts or exceptions are nested */
+
+ EXCEPTION_EPILOGUE
+#if ARC_FEATURE_CORE_600
+ rtie ilink2
+#else
+ rtie
+#endif
+
+/* there is a dispatch request */
+ret_exc_2:
+ /* clear dispatch request */
+ mov r0, 0
+ st r0, [context_switch_reqflg]
+
+ ld r0, [pxCurrentTCB]
+ breq r0, 0, ret_exc_1
+
+ SAVE_CALLEE_REGS /* save callee save registers */
+
+ lr r0, [AUX_STATUS32]
+ bclr r0, r0, AUX_STATUS_BIT_AE /* clear exception bit */
+ flag r0
+
+ mov r1, ret_exc_r /* save return address */
+ PUSH r1
+
+ bl dispatcher /* r0->pxCurrentTCB */
+
+ret_exc_r:
+ /* recover exception status */
+ lr r0, [AUX_STATUS32]
+ bset r0, r0, AUX_STATUS_BIT_AE
+ flag r0
+
+ RESTORE_CALLEE_REGS /* recover registers */
+ EXCEPTION_EPILOGUE
+#if ARC_FEATURE_CORE_600
+ rtie ilink2
+#else
+ rtie
+#endif
+
+/****** entry for normal interrupt exception handling ******/
+ .global exc_entry_int /* entry for interrupt handling */
+ .align 4
+exc_entry_int:
+
+ INTERRUPT_PROLOGUE
+
+ mov blink, sp
+
+ /* disable interrupt */
+ push r0
+ lr r0, [AUX_STATUS32]
+ push r0
+ bclr r0, r0, AUX_STATUS_BIT_E1
+ bclr r0, r0, AUX_STATUS_BIT_E2
+ flag r0
+ ld r3, [exc_nest_count]
+ add r2, r3, 1
+ st r2, [exc_nest_count]
+ /* enable interrupt */
+ pop r0
+ flag r0
+ pop r0
+
+ brne r3, 0, irq_handler_1
+/* change to exception stack if interrupt happened in task context */
+ mov sp, _e_stack
+#if ARC_FEATURE_STACK_CHECK
+ lr r0, [AUX_STATUS32]
+ bclr r0, r0, AUX_STATUS_BIT_SC
+ flag r0
+#endif
+irq_handler_1:
+ PUSH blink
+
+/* critical area */
+#if ARC_FEATURE_CORE_700
+ lr r0, [AUX_IRQ_CAUSE1]
+#endif
+ mov r1, exc_int_handler_table
+ ld.as r2, [r1, r0] /* r2 = exc_int_handler_table + irqno *4 */
+/* handle software triggered interrupt */
+ lr r3, [AUX_IRQ_HINT]
+ cmp r3, r0
+ bne.d irq_hint_handled
+ xor r3, r3, r3
+ sr r3, [AUX_IRQ_HINT]
+irq_hint_handled:
+
+ jl [r2] /* jump to interrupt handler */
+/* no interrupts are allowed from here */
+ret_int:
+ clri /* disable interrupt */
+
+ POP sp
+ mov r1, exc_nest_count
+ ld r0, [r1]
+ sub r0, r0, 1
+ st r0, [r1]
+/* if there are multi-bits set in IRQ_LV12, it's still in nest interrupt */
+ lr r1, [AUX_IRQ_LV12]
+
+ ld r0, [context_switch_reqflg]
+ brne r0, 0, ret_int_2
+ret_int_1: /* return from non-task context */
+ INTERRUPT_EPILOGUE
+#if ARC_FEATURE_CORE_600
+/* TODO: series 600 IRQ6 and IRQ7 uses ilink2 */
+ rtie ilink1
+#else
+ rtie
+#endif
+/* there is a dispatch request */
+ret_int_2:
+ /* clear dispatch request */
+ mov r0, 0
+ st r0, [context_switch_reqflg]
+
+ ld r0, [pxCurrentTCB]
+ breq r0, 0, ret_int_1
+
+/* r1 has old AUX_IRQ_LV12 */
+ PUSH r1
+/* clear related bits in IRQ_ACT manually to simulate a irq return */
+
+ SAVE_CALLEE_REGS /* save callee save registers */
+ mov r1, ret_int_r /* save return address */
+ PUSH r1
+
+ bl dispatcher /* r0->pxCurrentTCB */
+
+ret_int_r:
+ RESTORE_CALLEE_REGS /* recover registers */
+ POPAX AUX_IRQ_LV12
+ INTERRUPT_EPILOGUE
+#if ARC_FEATURE_CORE_600
+ rtie ilink1
+#else
+ rtie
+#endif
+
+/** @endcond */
diff --git a/portable/ThirdParty/GCC/ARC_v1/port.c b/portable/ThirdParty/GCC/ARC_v1/port.c
new file mode 100644
index 0000000..fe831b1
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_v1/port.c
@@ -0,0 +1,295 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2020 Synopsys, 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!
+ */
+
+/*
+ * Implementation of functions defined in portable.h
+ */
+
+#include "FreeRTOS.h"
+#include "task.h"
+#include "FreeRTOSConfig.h"
+
+#include "arc/arc_exception.h"
+#include "arc/arc_timer.h"
+#include "board.h"
+
+#include "arc_freertos_exceptions.h"
+
+volatile unsigned int ulCriticalNesting = 999UL;
+volatile unsigned int context_switch_reqflg; /* task context switch request flag in exceptions and interrupts handling */
+
+/**
+ * \var exc_nest_count
+ * \brief the counter for exc/int processing, =0 no int/exc
+ * >1 in int/exc processing
+ * @}
+ */
+uint32_t exc_nest_count;
+/* --------------------------------------------------------------------------*/
+
+/**
+ * @brief kernel tick interrupt handler of freertos
+ */
+/* ----------------------------------------------------------------------------*/
+static void vKernelTick( void * ptr )
+{
+ /* clear timer interrupt */
+ arc_timer_int_clear( BOARD_OS_TIMER_ID );
+ board_timer_update( configTICK_RATE_HZ );
+
+ if( xTaskIncrementTick() )
+ {
+ portYIELD_FROM_ISR(); /* need to make task switch */
+ }
+}
+
+/* --------------------------------------------------------------------------*/
+
+/**
+ * @brief setup freertos kernel tick
+ */
+/* ----------------------------------------------------------------------------*/
+static void prvSetupTimerInterrupt( void )
+{
+ unsigned int cyc = configCPU_CLOCK_HZ / configTICK_RATE_HZ;
+
+ int_disable( BOARD_OS_TIMER_INTNO ); /* disable os timer interrupt */
+ arc_timer_stop( BOARD_OS_TIMER_ID );
+ arc_timer_start( BOARD_OS_TIMER_ID, TIMER_CTRL_IE | TIMER_CTRL_NH, cyc );
+
+ int_handler_install( BOARD_OS_TIMER_INTNO, ( INT_HANDLER_T ) vKernelTick );
+ int_pri_set( BOARD_OS_TIMER_INTNO, INT_PRI_MIN );
+ int_enable( BOARD_OS_TIMER_INTNO );
+}
+
+/*
+ * Setup the stack of a new task so it is ready to be placed under the
+ * scheduler control. The registers have to be placed on the stack in
+ * the order that the port expects to find them.
+ *
+ * For ARC, task context switch is implemented with the help of SWI exception
+ * It's not efficient but simple.
+ *
+ */
+StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
+ TaskFunction_t pxCode,
+ void * pvParameters )
+{
+ /* To ensure asserts in tasks.c don't fail, although in this case the assert
+ * is not really required. */
+ pxTopOfStack--;
+
+ /* Setup the initial stack of the task. The stack is set exactly as
+ * expected by the portRESTORE_CONTEXT() macro. */
+
+ /* When the task starts is will expect to find the function parameter in
+ * R0. */
+ *pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
+
+ pxTopOfStack--;
+ *pxTopOfStack = ( StackType_t ) pxCode; /* function body */
+
+ /* PC */
+ pxTopOfStack--;
+ *pxTopOfStack = ( StackType_t ) start_r; /* dispatch return address */
+
+ pxTopOfStack--;
+ *pxTopOfStack = ( StackType_t ) portNO_CRITICAL_NESTING;
+ return pxTopOfStack;
+}
+
+/* --------------------------------------------------------------------------*/
+
+/**
+ * @brief start the freertos scheduler, go to the first task
+ *
+ * @returns
+ */
+/* ----------------------------------------------------------------------------*/
+BaseType_t xPortStartScheduler( void )
+{
+ /* Start the timer that generates the tick ISR. */
+ prvSetupTimerInterrupt();
+ start_dispatch();
+
+ /* Should not get here! */
+ return 0;
+}
+
+/* --------------------------------------------------------------------------*/
+
+/**
+ * @brief
+ */
+/* ----------------------------------------------------------------------------*/
+void vPortEndScheduler( void )
+{
+}
+
+/* --------------------------------------------------------------------------*/
+
+/**
+ * @brief generate a task switch request in ISR
+ */
+/* ----------------------------------------------------------------------------*/
+void vPortYieldFromIsr( void )
+{
+ unsigned int status32;
+
+ status32 = cpu_lock_save();
+ context_switch_reqflg = true;
+ cpu_unlock_restore( status32 );
+}
+
+/* --------------------------------------------------------------------------*/
+
+/**
+ * @brief
+ */
+/* ----------------------------------------------------------------------------*/
+void vPortYield( void )
+{
+ unsigned int status32;
+
+ status32 = cpu_lock_save();
+ dispatch();
+ cpu_unlock_restore( status32 );
+}
+
+/* --------------------------------------------------------------------------*/
+
+/**
+ * @brief
+ */
+/* ----------------------------------------------------------------------------*/
+void vPortEndTask( void )
+{
+ #if ( INCLUDE_vTaskDelete == 1 )
+ vTaskDelete( NULL ); /* Delete task itself */
+ #endif
+
+ while( 1 ) /* Yield to other task */
+ {
+ vPortYield();
+ }
+}
+
+#if ARC_FEATURE_STACK_CHECK
+
+/*
+ * !!! Note !!!
+ * This a trick!!!
+ * It's a copy from task.c. We need to konw the definition of TCB for the purpose of hardware
+ * stack check. Pls don't forget to update it when FreeRTOS is updated.
+ */
+ typedef struct tskTaskControlBlock /* The old naming convention is used to prevent breaking kernel aware debuggers. */
+ {
+ volatile StackType_t * pxTopOfStack; /*< Points to the location of the last item placed on the tasks stack. THIS MUST BE THE FIRST MEMBER OF THE TCB STRUCT. */
+
+ #if ( portUSING_MPU_WRAPPERS == 1 )
+ xMPU_SETTINGS xMPUSettings; /*< The MPU settings are defined as part of the port layer. THIS MUST BE THE SECOND MEMBER OF THE TCB STRUCT. */
+ #endif
+
+ ListItem_t xStateListItem; /*< The list that the state list item of a task is reference from denotes the state of that task (Ready, Blocked, Suspended ). */
+ ListItem_t xEventListItem; /*< Used to reference a task from an event list. */
+ UBaseType_t uxPriority; /*< The priority of the task. 0 is the lowest priority. */
+ StackType_t * pxStack; /*< Points to the start of the stack. */
+ char pcTaskName[ configMAX_TASK_NAME_LEN ]; /*< Descriptive name given to the task when created. Facilitates debugging only. */ /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
+
+ #if ( ( portSTACK_GROWTH > 0 ) || ( configRECORD_STACK_HIGH_ADDRESS == 1 ) )
+ StackType_t * pxEndOfStack; /*< Points to the highest valid address for the stack. */
+ #endif
+
+ #if ( portCRITICAL_NESTING_IN_TCB == 1 )
+ UBaseType_t uxCriticalNesting; /*< Holds the critical section nesting depth for ports that do not maintain their own count in the port layer. */
+ #endif
+
+ #if ( configUSE_TRACE_FACILITY == 1 )
+ UBaseType_t uxTCBNumber; /*< Stores a number that increments each time a TCB is created. It allows debuggers to determine when a task has been deleted and then recreated. */
+ UBaseType_t uxTaskNumber; /*< Stores a number specifically for use by third party trace code. */
+ #endif
+
+ #if ( configUSE_MUTEXES == 1 )
+ UBaseType_t uxBasePriority; /*< The priority last assigned to the task - used by the priority inheritance mechanism. */
+ UBaseType_t uxMutexesHeld;
+ #endif
+
+ #if ( configUSE_APPLICATION_TASK_TAG == 1 )
+ TaskHookFunction_t pxTaskTag;
+ #endif
+
+ #if ( configNUM_THREAD_LOCAL_STORAGE_POINTERS > 0 )
+ void * pvThreadLocalStoragePointers[ configNUM_THREAD_LOCAL_STORAGE_POINTERS ];
+ #endif
+
+ #if ( configGENERATE_RUN_TIME_STATS == 1 )
+ uint32_t ulRunTimeCounter; /*< Stores the amount of time the task has spent in the Running state. */
+ #endif
+
+ #if ( configUSE_NEWLIB_REENTRANT == 1 )
+
+ /* Allocate a Newlib reent structure that is specific to this task.
+ * Note Newlib support has been included by popular demand, but is not
+ * used by the FreeRTOS maintainers themselves. FreeRTOS is not
+ * responsible for resulting newlib operation. User must be familiar with
+ * newlib and must provide system-wide implementations of the necessary
+ * stubs. Be warned that (at the time of writing) the current newlib design
+ * implements a system-wide malloc() that must be provided with locks. */
+ struct _reent xNewLib_reent;
+ #endif
+
+ #if ( configUSE_TASK_NOTIFICATIONS == 1 )
+ volatile uint32_t ulNotifiedValue;
+ volatile uint8_t ucNotifyState;
+ #endif
+
+ /* See the comments above the definition of
+ * tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE. */
+ #if ( tskSTATIC_AND_DYNAMIC_ALLOCATION_POSSIBLE != 0 ) /*lint !e731 !e9029 Macro has been consolidated for readability reasons. */
+ uint8_t ucStaticallyAllocated; /*< Set to pdTRUE if the task is a statically allocated to ensure no attempt is made to free the memory. */
+ #endif
+
+ #if ( INCLUDE_xTaskAbortDelay == 1 )
+ uint8_t ucDelayAborted;
+ #endif
+
+ #if ( configUSE_POSIX_ERRNO == 1 )
+ int iTaskErrno;
+ #endif
+ } tskTCB;
+
+
+ void vPortSetStackCheck( TaskHandle_t old,
+ TaskHandle_t new )
+ {
+ if( new != NULL )
+ {
+ arc_aux_write( AUX_USTACK_BASE, ( uint32_t ) ( new->pxEndOfStack ) );
+ arc_aux_write( AUX_USTACK_TOP, ( uint32_t ) ( new->pxStack ) );
+ }
+ }
+#endif /* if ARC_FEATURE_STACK_CHECK */
diff --git a/portable/ThirdParty/GCC/ARC_v1/portmacro.h b/portable/ThirdParty/GCC/ARC_v1/portmacro.h
new file mode 100644
index 0000000..dec26c3
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_v1/portmacro.h
@@ -0,0 +1,149 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2020 Synopsys, 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!
+ */
+
+#ifndef PORTMACRO_H
+ #define PORTMACRO_H
+ #include "embARC.h"
+
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+
+/* record stack high address for stack check */
+ #ifndef configRECORD_STACK_HIGH_ADDRESS
+ #define configRECORD_STACK_HIGH_ADDRESS 1
+ #endif
+
+/*-----------------------------------------------------------
+ * Port specific definitions.
+ *
+ * The settings in this file configure FreeRTOS correctly for the
+ * given hardware and compiler.
+ *
+ * These settings should not be altered.
+ *-----------------------------------------------------------
+ */
+
+/* Type definitions. */
+ #define portCHAR char
+ #define portFLOAT float
+ #define portDOUBLE double
+ #define portLONG long
+ #define portSHORT short
+ #define portSTACK_TYPE unsigned int
+ #define portBASE_TYPE portLONG
+
+ #ifndef Asm
+ #define Asm __asm__ volatile
+ #endif
+
+/*
+ * normal constants
+ */
+ #ifndef NULL
+ #define NULL 0 /* invalid pointer */
+ #endif /* NULL */
+
+ #ifndef true
+ #define true 1 /* true */
+ #endif /* true */
+
+ #ifndef false
+ #define false 0 /* false */
+ #endif /* false */
+
+ typedef portSTACK_TYPE StackType_t;
+ typedef long BaseType_t;
+ typedef unsigned long UBaseType_t;
+
+ #if ( configUSE_16_BIT_TICKS == 1 )
+ typedef uint16_t TickType_t;
+ #define portMAX_DELAY ( TickType_t ) 0xffff
+ #else
+ typedef unsigned int TickType_t;
+ #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
+ #endif
+
+ #define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
+ #define portSTACK_GROWTH ( -1 )
+ #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
+ #define portBYTE_ALIGNMENT 8
+ #define portNOP() Asm( "nop_s" );
+ #define IPM_ENABLE_ALL 1
+
+ #define portYIELD_FROM_ISR() vPortYieldFromIsr()
+ #define portYIELD() vPortYield()
+
+/* Critical section management. */
+ #define portDISABLE_INTERRUPTS() \
+ { \
+ arc_lock(); \
+ } \
+
+ #define portENABLE_INTERRUPTS() \
+ { \
+ arc_unlock(); \
+ } \
+
+ extern volatile unsigned int ulCriticalNesting;
+
+ #define portENTER_CRITICAL() \
+ { \
+ portDISABLE_INTERRUPTS() \
+ ulCriticalNesting++; \
+ }
+
+
+ #define portEXIT_CRITICAL() \
+ { \
+ if( ulCriticalNesting > portNO_CRITICAL_NESTING ) \
+ { \
+ ulCriticalNesting--; \
+ if( ulCriticalNesting == portNO_CRITICAL_NESTING ) \
+ { \
+ portENABLE_INTERRUPTS() \
+ } \
+ } \
+ }
+
+
+ #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
+ #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
+
+ #define portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() do {} while( 0 ) /* we use the timer */
+ #define portALT_GET_RUN_TIME_COUNTER_VALUE( dest ) ( dest = xTickCount )
+
+ #define portCLEAN_UP_TCB( pxTCB ) ( void ) pxTCB
+
+ void vPortYield( void );
+ void vPortYieldFromIsr( void );
+
+ #ifdef __cplusplus
+}
+ #endif
+
+#endif /* PORTMACRO_H */
