Synopsys ARC port, adding support for ARC EM and HS cores -- continued from PR #8. (#28)
Synopsys ARC port, adding support for ARC EM and HS cores.
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.c b/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.c
new file mode 100644
index 0000000..cefd2aa
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.c
@@ -0,0 +1,52 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 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!
+ */
+
+/**
+ * \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_EM_HS/arc_freertos_exceptions.h b/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.h
new file mode 100644
index 0000000..ae398f4
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/arc_freertos_exceptions.h
@@ -0,0 +1,45 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 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!
+ */
+
+#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_EM_HS/arc_support.s b/portable/ThirdParty/GCC/ARC_EM_HS/arc_support.s
new file mode 100644
index 0000000..27aa5fe
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/arc_support.s
@@ -0,0 +1,521 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 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!
+ */
+
+/**
+ * \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
+#if ARC_FEATURE_SEC_PRESENT
+ lr r0, [AUX_SEC_STAT]
+ bclr r0, r0, AUX_SEC_STAT_BIT_SSC
+ sflag r0
+#else
+ lr r0, [AUX_STATUS32]
+ bclr r0, r0, AUX_STATUS_BIT_SC
+ kflag r0
+#endif
+ jl vPortSetStackCheck
+#if ARC_FEATURE_SEC_PRESENT
+ lr r0, [AUX_SEC_STAT]
+ bset r0, r0, AUX_SEC_STAT_BIT_SSC
+ sflag r0
+#else
+ lr r0, [AUX_STATUS32]
+ bset r0, r0, AUX_STATUS_BIT_SC
+ kflag r0
+#endif
+#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 r0, [exc_nest_count]
+ add r1, r0, 1
+ st r1, [exc_nest_count]
+ brne r0, 0, exc_handler_1
+/* change to exception stack if interrupt happened in task context */
+ mov sp, _e_stack
+exc_handler_1:
+ PUSH blink
+
+ lr r0, [AUX_ECR]
+ lsr r0, r0, 16
+ 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 /* nest exception case */
+ lr r1, [AUX_IRQ_ACT] /* nest interrupt case */
+ brne r1, 0, ret_exc_1
+
+ 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
+ rtie
+
+/* 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 */
+ kflag 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
+ kflag r0
+
+ RESTORE_CALLEE_REGS /* recover registers */
+ EXCEPTION_EPILOGUE
+ rtie
+
+/****** entry for normal interrupt exception handling ******/
+ .global exc_entry_int /* entry for interrupt handling */
+ .align 4
+exc_entry_int:
+#if ARC_FEATURE_FIRQ == 1
+#if ARC_FEATURE_RGF_NUM_BANKS > 1
+ lr r0, [AUX_IRQ_ACT] /* check whether it is P0 interrupt */
+ btst r0, 0
+ jnz exc_entry_firq
+#else
+ PUSH r10
+ lr r10, [AUX_IRQ_ACT]
+ btst r10, 0
+ POP r10
+ jnz exc_entry_firq
+#endif
+#endif
+ INTERRUPT_PROLOGUE
+
+ mov blink, sp
+
+ clri /* disable interrupt */
+ ld r3, [exc_nest_count]
+ add r2, r3, 1
+ st r2, [exc_nest_count]
+ seti /* enable higher priority interrupt */
+
+ 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
+#if ARC_FEATURE_SEC_PRESENT
+ lr r0, [AUX_SEC_STAT]
+ bclr r0, r0, AUX_SEC_STAT_BIT_SSC
+ sflag r0
+#else
+ lr r0, [AUX_STATUS32]
+ bclr r0, r0, AUX_STATUS_BIT_SC
+ kflag r0
+#endif
+#endif
+irq_handler_1:
+ PUSH blink
+
+ lr r0, [AUX_IRQ_CAUSE]
+ 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_ACT, it's still in nest interrupt */
+ lr r0, [AUX_IRQ_CAUSE]
+ sr r0, [AUX_IRQ_SELECT]
+ lr r3, [AUX_IRQ_PRIORITY]
+ lr r1, [AUX_IRQ_ACT]
+ bclr r2, r1, r3
+ brne r2, 0, ret_int_1
+
+ ld r0, [context_switch_reqflg]
+ brne r0, 0, ret_int_2
+ret_int_1: /* return from non-task context */
+ INTERRUPT_EPILOGUE
+ rtie
+/* 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_ACT */
+ PUSH r1
+/* clear related bits in IRQ_ACT manually to simulate a irq return */
+ sr r2, [AUX_IRQ_ACT]
+
+ 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_ACT
+ INTERRUPT_EPILOGUE
+ rtie
+
+#if ARC_FEATURE_FIRQ == 1
+ .global exc_entry_firq
+ .align 4
+exc_entry_firq:
+#if ARC_FEATURE_STACK_CHECK && ARC_FEATURE_RGF_NUM_BANKS > 1
+#if ARC_FEATURE_SEC_PRESENT
+ lr r0, [AUX_SEC_STAT]
+ bclr r0, r0, AUX_SEC_STAT_BIT_SSC
+ sflag r0
+#else
+ lr r0, [AUX_STATUS32]
+ bclr r0, r0, AUX_STATUS_BIT_SC
+ kflag r0
+#endif
+#endif
+ SAVE_FIQ_EXC_REGS
+
+ mov blink, sp
+
+ ld r3, [exc_nest_count]
+ add r2, r3, 1
+ st r2, [exc_nest_count]
+
+ brne r3, 0, firq_handler_1
+#if ARC_FEATURE_STACK_CHECK && ARC_FEATURE_RGF_NUM_BANKS == 1
+#if ARC_FEATURE_SEC_PRESENT
+ lr r0, [AUX_SEC_STAT]
+ bclr r0, r0, AUX_SEC_STAT_BIT_SSC
+ sflag r0
+#else
+ lr r0, [AUX_STATUS32]
+ bclr r0, r0, AUX_STATUS_BIT_SC
+ kflag r0
+#endif
+#endif
+/* change to exception stack if interrupt happened in task context */
+ mov sp, _e_stack
+firq_handler_1:
+ PUSH blink
+
+ lr r0, [AUX_IRQ_CAUSE]
+ 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]
+ brne r3, r0, firq_hint_handled
+ xor r3, r3, r3
+ sr r3, [AUX_IRQ_HINT]
+firq_hint_handled:
+
+ jl [r2] /* jump to interrupt handler */
+/* no interrupts are allowed from here */
+ret_firq:
+ clri
+ 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_ACT, it's still in nest interrupt */
+ lr r1, [AUX_IRQ_ACT]
+ bclr r1, r1, 0
+ brne r1, 0, ret_firq_1
+
+ ld r0, [context_switch_reqflg]
+ brne r0, 0, ret_firq_2
+ret_firq_1: /* return from non-task context */
+ RESTORE_FIQ_EXC_REGS
+ rtie
+/* there is a dispatch request */
+ret_firq_2:
+ /* clear dispatch request */
+ mov r0, 0
+ st r0, [context_switch_reqflg]
+
+ ld r0, [pxCurrentTCB]
+ breq r0, 0, ret_firq_1
+
+/* reconstruct the interruptted context
+ * When ARC_FEATURE_RGF_BANKED_REGS >= 16 (16, 32), sp is banked
+ * so need to restore the fast irq stack.
+ */
+#if ARC_FEATURE_RGF_BANKED_REGS >= 16
+ RESTORE_LP_REGS
+#if ARC_FEATURE_CODE_DENSITY
+ RESTORE_CODE_DENSITY
+#endif
+ RESTORE_R58_R59
+#endif
+
+/* when BANKED_REGS == 16, r4-r9 wiil be also saved in fast irq stack
+ * so pop them out
+ */
+#if ARC_FEATURE_RGF_BANKED_REGS == 16 && !defined(ARC_FEATURE_RF16)
+ POP r9
+ POP r8
+ POP r7
+ POP r6
+ POP r5
+ POP r4
+#endif
+
+/* for other cases, unbanked regs are already in interrupted context's stack,
+ * so just need to save and pop the banked regs
+ */
+
+/* save the interruptted context */
+#if ARC_FEATURE_RGF_BANKED_REGS > 0
+/* switch back to bank0 */
+ lr r0, [AUX_STATUS32]
+ bic r0, r0, 0x70000
+ kflag r0
+#endif
+
+#if ARC_FEATURE_RGF_BANKED_REGS == 4
+/* r4 - r12, gp, fp, r30, blink already saved */
+ PUSH r0
+ PUSH r1
+ PUSH r2
+ PUSH r3
+#elif ARC_FEATURE_RGF_BANKED_REGS == 8
+/* r4 - r9, r0, r11 gp, fp, r30, blink already saved */
+ PUSH r0
+ PUSH r1
+ PUSH r2
+ PUSH r3
+ PUSH r12
+#elif ARC_FEATURE_RGF_BANKED_REGS >= 16
+/* nothing is saved, */
+ SAVE_R0_TO_R12
+
+ SAVE_R58_R59
+ PUSH gp
+ PUSH fp
+ PUSH r30 /* general purpose */
+ PUSH blink
+
+#if ARC_FEATURE_CODE_DENSITY
+ SAVE_CODE_DENSITY
+#endif
+ SAVE_LP_REGS
+#endif
+ PUSH ilink
+ lr r0, [AUX_STATUS32_P0]
+ PUSH r0
+ lr r0, [AUX_IRQ_ACT]
+ PUSH r0
+ bclr r0, r0, 0
+ sr r0, [AUX_IRQ_ACT]
+
+ SAVE_CALLEE_REGS /* save callee save registers */
+
+ mov r1, ret_firq_r /* save return address */
+ PUSH r1
+ ld r0, [pxCurrentTCB]
+ bl dispatcher /* r0->pxCurrentTCB */
+
+ret_firq_r:
+ RESTORE_CALLEE_REGS /* recover registers */
+ POPAX AUX_IRQ_ACT
+ POPAX AUX_STATUS32_P0
+ POP ilink
+
+#if ARC_FEATURE_RGF_NUM_BANKS > 1
+#if ARC_FEATURE_RGF_BANKED_REGS == 4
+/* r4 - r12, gp, fp, r30, blink already saved */
+ POP r3
+ POP r2
+ POP r1
+ POP r0
+ RESTORE_FIQ_EXC_REGS
+#elif ARC_FEATURE_RGF_BANKED_REGS == 8
+/* r4 - r9, gp, fp, r30, blink already saved */
+ POP r12
+ POP r3
+ POP r2
+ POP r1
+ POP r0
+ RESTORE_FIQ_EXC_REGS
+#elif ARC_FEATURE_RGF_BANKED_REGS >= 16
+ RESTORE_LP_REGS
+#if ARC_FEATURE_CODE_DENSITY
+ RESTORE_CODE_DENSITY
+#endif
+ POP blink
+ POP r30
+ POP fp
+ POP gp
+
+ RESTORE_R58_R59
+ RESTORE_R0_TO_R12
+#endif /* ARC_FEATURE_RGF_BANKED_REGS */
+#else
+ RESTORE_FIQ_EXC_REGS
+#endif /* ARC_FEATURE_RGF_NUM_BANKS */
+ rtie
+#endif
+/** @endcond */
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/freertos_tls.c b/portable/ThirdParty/GCC/ARC_EM_HS/freertos_tls.c
new file mode 100644
index 0000000..0d24c3c
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/freertos_tls.c
@@ -0,0 +1,205 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 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!
+ */
+
+#if defined(__MW__)
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "FreeRTOS.h"
+
+#include "queue.h"
+#include "semphr.h"
+#include "task.h"
+
+#include "arc/arc_exception.h"
+#include "embARC_toolchain.h"
+#include "embARC_debug.h"
+
+#ifdef ENABLE_FREERTOS_TLS_DEBUG
+#define TLS_DEBUG(fmt, ...) EMBARC_PRINTF(fmt, ##__VA_ARGS__)
+#else
+#define TLS_DEBUG(fmt, ...)
+#endif
+
+/*
+ * Runtime routines to execute constructors and
+ * destructors for task local storage.
+ */
+extern void __mw_run_tls_dtor();
+extern void __mw_run_tls_ctor();
+
+/*
+ * Linker generated symbols to mark .tls section addresses
+ * first byte .. last byte
+ */
+extern char _ftls[], _etls[];
+#pragma weak _ftls
+#pragma weak _etls
+
+void executable_requires_tls_section(void)
+{
+#if _ARC
+ for (;;) {
+ _flag(1);
+ _nop();
+ _nop();
+ _nop();
+ _nop();
+ _nop();
+ }
+#endif
+}
+#pragma off_inline(executable_requires_tls_section);
+#pragma alias(executable_requires_tls_section, "executable_requires_.tls_section");
+
+static void* init_task_tls(void)
+{
+ uint32_t len = (uint32_t)(_etls - _ftls);
+ void *tls = NULL;
+
+#if FREERTOS_HEAP_SEL == 3
+ #warning "FreeRTOS TLS support is not compatible with heap 3 solution(FREERTOS_HEAP_SEL=3)!"
+ #warning "You can change FREERTOS_HEAP_SEL in freertos.mk to select other heap solution."
+#else
+ tls = pvPortMalloc(len);
+#endif
+ if (tls) {
+ TLS_DEBUG("Malloc task tls:%dbytes\r\n", len);
+ memcpy(tls, _ftls, len);
+ __mw_run_tls_ctor(); // Run constructors
+ }
+ return tls;
+}
+
+static void free_task_tls(void *pxTCB)
+{
+ TaskHandle_t task2free = (TaskHandle_t)pxTCB;
+
+ if (task2free != NULL) {
+ void *tls = pvTaskGetThreadLocalStoragePointer(task2free, 0);
+ if (tls) {
+ TLS_DEBUG("Free task tls\r\n");
+ __mw_run_tls_dtor();
+ vPortFree(tls);
+ vTaskSetThreadLocalStoragePointer(task2free, 0, NULL);
+ }
+ }
+}
+
+void task_end_hook(void *pxTCB)
+{
+ free_task_tls(pxTCB);
+}
+
+static void* get_isr_tls(void)
+{
+ // In an ISR
+ static int first = 1;
+ if (_Rarely(first)) {
+ first = 0;
+ __mw_run_tls_ctor(); // Run constructors
+ }
+ return (void *)_ftls;
+}
+#pragma off_inline(get_isr_tls)
+
+static void* get_task_tls(void)
+{
+ TaskHandle_t cur_task;
+
+ cur_task = xTaskGetCurrentTaskHandle();
+ if (cur_task == NULL) return get_isr_tls();
+ void *tls = pvTaskGetThreadLocalStoragePointer(cur_task, 0);
+ if (tls == NULL) {
+ tls = init_task_tls();
+ if (tls) {
+ vTaskSetThreadLocalStoragePointer(cur_task, 0, tls);
+ } else {
+ tls = get_isr_tls();
+ }
+ }
+ return tls;
+}
+#pragma off_inline(get_task_tls)
+
+#if _ARC /* for ARC XCALLs need to preserve flags */
+ extern void * _Preserve_flags _mwget_tls(void);
+#endif
+
+/*
+ * Back end gens calls to find local data for this task
+ */
+void* _mwget_tls(void)
+{
+ if (_ftls == (char *)0) {
+ executable_requires_tls_section();
+ }
+ if (exc_sense()) { /* In ISR */
+ return get_isr_tls();
+ } else { /* In Task */
+ return get_task_tls();
+ }
+}
+
+
+// simple interface of thread safe
+typedef xSemaphoreHandle _lock_t;
+#if configUSE_RECURSIVE_MUTEXES != 1
+#error "configUSE_RECURSIVE_MUTEXES in FreeRTOSConfig.h need to 1"
+#endif
+
+void _mwmutex_create(_lock_t *mutex_ptr)
+{
+ *mutex_ptr = xSemaphoreCreateRecursiveMutex();
+}
+
+void _mwmutex_delete(_lock_t *mutex_ptr)
+{
+ if ((*mutex_ptr) != NULL) {
+ vSemaphoreDelete(*mutex_ptr);
+ }
+}
+
+void _mwmutex_lock(_lock_t mutex)
+{
+ if ((mutex) != NULL) {
+ while (xSemaphoreTakeRecursive(mutex, portMAX_DELAY) != pdTRUE);
+ }
+}
+
+void _mwmutex_unlock(_lock_t mutex)
+{
+ if ((mutex) != NULL) {
+ xSemaphoreGiveRecursive(mutex);
+ }
+}
+
+#else
+
+#endif /* __MW__ */
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/port.c b/portable/ThirdParty/GCC/ARC_EM_HS/port.c
new file mode 100644
index 0000000..06f65cc
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/port.c
@@ -0,0 +1,283 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 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!
+ */
+
+/*
+ * 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 */
+
+/* --------------------------------------------------------------------------*/
+/**
+ * @brief kernel tick interrupt handler of freertos
+ */
+/* ----------------------------------------------------------------------------*/
+static void vKernelTick( void *ptr )
+{
+ /* clear timer interrupt */
+ 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 */
+ timer_stop(BOARD_OS_TIMER_ID);
+ 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) {
+#if ARC_FEATURE_SEC_PRESENT
+ arc_aux_write(AUX_S_KSTACK_BASE, (uint32_t)(new->pxEndOfStack));
+ arc_aux_write(AUX_S_KSTACK_TOP, (uint32_t)(new->pxStack));
+#else
+ arc_aux_write(AUX_KSTACK_BASE, (uint32_t)(new->pxEndOfStack));
+ arc_aux_write(AUX_KSTACK_TOP, (uint32_t)(new->pxStack));
+#endif
+ }
+}
+#endif
diff --git a/portable/ThirdParty/GCC/ARC_EM_HS/portmacro.h b/portable/ThirdParty/GCC/ARC_EM_HS/portmacro.h
new file mode 100644
index 0000000..dc95036
--- /dev/null
+++ b/portable/ThirdParty/GCC/ARC_EM_HS/portmacro.h
@@ -0,0 +1,158 @@
+/*
+ * FreeRTOS Kernel V10.2.1
+ * Copyright (C) 2019 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!
+ */
+
+#ifndef PORTMACRO_H
+#define PORTMACRO_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 Inline
+#define Inline static __inline__
+#endif
+#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 0x0
+#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() \
+{ \
+ Asm("clri"); \
+ Asm("":::"memory"); \
+} \
+
+#define portENABLE_INTERRUPTS() \
+{ \
+ Asm("":::"memory"); \
+ Asm("seti"); \
+} \
+
+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)
+
+#if defined(__MW__)
+extern void task_end_hook(void *pxTCB);
+#define portCLEAN_UP_TCB( pxTCB ) task_end_hook((void *)pxTCB)
+#else
+#define portCLEAN_UP_TCB( pxTCB ) ( void ) pxTCB
+#endif
+
+void vPortYield(void);
+void vPortYieldFromIsr(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PORTMACRO_H */
