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Merge pull request #200 from foss-for-synopsys-dwc-arc-processors/feature/arc_support

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Add support for ARC processor
This commit is contained in:
Supowang
2020-07-14 10:17:42 +08:00
committed by GitHub
parent 08177a2a3d f7b5b43b90
commit c6e7761a1e
15 changed files with 1431 additions and 7 deletions
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74
arch/arc/arcem/port.h Normal file
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/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#ifndef _PORT_H_
#define _PORT_H_
#if TOS_CFG_FAULT_BACKTRACE_EN > 0u
#endif
#if defined(TOS_CFG_CPU_LEAD_ZEROS_ASM_PRESENT) && (TOS_CFG_CPU_LEAD_ZEROS_ASM_PRESENT == 1u)
__PORT__ uint32_t port_cpu_clz(uint32_t);
#endif
__PORT__ void port_int_disable(void);
__PORT__ void port_int_enable(void);
__PORT__ cpu_cpsr_t port_cpsr_save(void);
__PORT__ void port_cpsr_restore(cpu_cpsr_t cpsr);
__PORT__ void port_cpu_reset(void);
__PORT__ void port_sched_start(void) __NO_RETURN__;
__PORT__ void port_context_switch(void);
__PORT__ void port_irq_context_switch(void);
__PORT__ void port_systick_config(uint32_t cycle_per_tick);
__PORT__ void port_systick_priority_set(uint32_t prio);
#if TOS_CFG_TICKLESS_EN > 0u
__PORT__ void port_systick_resume(void);
__PORT__ void port_systick_suspend(void);
__PORT__ void port_systick_reload(uint32_t cycle_per_tick);
__PORT__ void port_systick_pending_reset(void);
__PORT__ k_time_t port_systick_max_delay_millisecond(void);
#endif
#if TOS_CFG_PWR_MGR_EN > 0u
__PORT__ void port_sleep_mode_enter(void);
__PORT__ void port_stop_mode_enter(void);
__PORT__ void port_standby_mode_enter(void);
#endif
#endif /* _PORT_H_ */

103
arch/arc/arcem/port_c.c Normal file
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/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#include "tos_k.h"
#include "arc/arc_timer.h"
#include "board.h"
#include "arc/arc_exception.h"
__PORT__ void port_cpu_reset(void)
{
exc_entry_reset();
}
__PORT__ void port_systick_config(uint32_t cycle_per_tick)
{
arc_timer_int_clear(0);
board_timer_update(cycle_per_tick);
}
__PORT__ void port_systick_priority_set(uint32_t prio)
{
int_pri_set(BOARD_OS_TIMER_INTNO, prio);
}
#if TOS_CFG_TICKLESS_EN > 0u
__PORT__ k_time_t port_systick_max_delay_millisecond(void)
{
k_time_t max_millisecond;
uint32_t max_cycle;
max_cycle = arc_aux_read(AUX_TIMER0_LIMIT); // AUX_TIMER0_CNT, reset value 0x00FFFFFF
max_millisecond = (k_time_t)((uint64_t)max_cycle * K_TIME_MILLISEC_PER_SEC / TOS_CFG_CPU_CLOCK); // CLOCK: cycle per second
return max_millisecond;
}
__PORT__ void port_systick_resume(void)
{
arc_aux_write(AUX_TIMER0_CTRL, TIMER_CTRL_IE); // enables the generation of an interrupt after the timer has reached its limit
arc_aux_write(AUX_TIMER0_CNT, 0); // writing to this register sets 0 for the timer, and restarts the timer
}
__PORT__ void port_systick_suspend(void)
{
arc_aux_write(AUX_TIMER0_CTRL, TIMER_CTRL_NH); // counting is suspended during host debugger interactions with the processor.
}
__PORT__ void port_systick_reload(uint32_t cycle_per_tick)
{
uint32_t max_cycle;
uint32_t systick_value;
max_cycle = arc_aux_read(AUX_TIMER0_LIMIT); // AUX_TIMER0_CNT, reset value 0x00FFFFFF
systick_value = arc_aux_read(AUX_TIMER0_CNT);
if (max_cycle - systick_value > cycle_per_tick - 1u) {
arc_aux_write(AUX_TIMER0_LIMIT, max_cycle);
} else {
arc_aux_write(AUX_TIMER0_LIMIT, (cycle_per_tick - 1u) + systick_value);
}
arc_aux_write(AUX_TIMER0_CNT, 0);
}
__PORT__ void port_systick_pending_reset(void)
{
arc_aux_write(AUX_TIMER0_CTRL, TIMER_CTRL_IP); // interrupt pending
}
#endif
#if TOS_CFG_PWR_MGR_EN > 0u
__PORT__ void port_sleep_mode_enter(void)
{
Asm("sleep");
}
__PORT__ void port_stop_mode_enter(void)
{
Asm("brk");
}
__PORT__ void port_standby_mode_enter(void)
{
Asm("nop");
}
#endif

28
arch/arc/arcem/port_config.h Normal file
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/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#ifndef _PORT_CONFIG_H_
#define _PORT_CONFIG_H_
#define TOS_CFG_CPU_ADDR_SIZE CPU_WORD_SIZE_32
#define TOS_CFG_CPU_DATA_SIZE CPU_WORD_SIZE_32
#define TOS_CFG_CPU_STK_GROWTH CPU_STK_GROWTH_DESCENDING
#define TOS_CFG_CPU_HRTIMER_EN 0u
#define TOS_CFG_CPU_LEAD_ZEROS_ASM_PRESENT 1u
#define TOS_CFG_CPU_BYTE_ORDER 0u
#endif /* _PORT_CONFIG_H_ */

319
arch/arc/arcem/port_s.s Normal file
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/*
* Copyright (c) 2020, Synopsys, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#define __ASSEMBLY__
#include "arc.h"
#include "arc_asm_common.h"
.global k_curr_task
.global k_next_task
.global g_exc_nest_count
.global g_context_switch_reqflg
.global tos_knl_irq_enter
.global tos_knl_irq_leave
.text
.align 4
dispatcher:
st sp, [r0] // ld r0, [k_curr_task]
ld sp, [r1] // ld r1, [k_next_task]
# k_curr_task = k_next_task;
st r1, [k_curr_task]
pop r0
j [r0]
/* return routine when task dispatch happened in task context */
dispatch_r:
RESTORE_NONSCRATCH_REGS
j [blink]
/*
* void port_sched_start(void)
*/
.global port_sched_start
.align 4
port_sched_start:
ld r0, [k_curr_task]
ld sp, [r0]
pop r0
j [r0]
/*
* void port_context_switch(void)
*/
.global port_context_switch
.align 4
port_context_switch:
SAVE_NONSCRATCH_REGS
mov r2, dispatch_r
push r2
ld r0, [k_curr_task]
ld r1, [k_next_task]
b dispatcher
/*
* void port_irq_context_switch(void)
*/
.global port_irq_context_switch
.align 4
port_irq_context_switch:
mov r0, 1
st r0, [g_context_switch_reqflg]
j [blink]
/*
* void start_r(void)
*/
.global start_r
.align 4
start_r:
pop blink;
pop r1
pop r2
pop r0
kflag r2
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, [g_exc_nest_count]
add r1, r0, 1
st r1, [g_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
jl tos_knl_irq_enter
lr r0, [AUX_ECR]
lsr r0, r0, 16
mov r1, exc_int_handler_table
ld.as r2, [r1, r0]
mov r0, r3
jl [r2]
jl tos_knl_irq_leave
/* interrupts are not allowed */
ret_exc:
POP sp
mov r1, g_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, [g_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, [g_context_switch_reqflg]
SAVE_CALLEE_REGS /* save callee save registers */
/* clear exception bit to do exception exit by SW */
lr r0, [AUX_STATUS32]
bclr r0, r0, AUX_STATUS_BIT_AE
kflag r0
mov r1, ret_exc_r /* save return address */
PUSH r1
ld r0, [k_curr_task]
ld r1, [k_next_task]
b dispatcher
ret_exc_r:
/* recover exception status */
lr r0, [AUX_STATUS32]
bset r0, r0, AUX_STATUS_BIT_AE
kflag r0
RESTORE_CALLEE_REGS
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
/* check whether it is P0 interrupt */
#if ARC_FEATURE_RGF_NUM_BANKS > 1
lr r0, [AUX_IRQ_ACT]
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, [g_exc_nest_count]
add r2, r3, 1
st r2, [g_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
jl tos_knl_irq_enter
lr r0, [AUX_IRQ_CAUSE]
sr r0, [AUX_IRQ_SELECT]
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:
lr r3, [AUX_IRQ_PRIORITY]
PUSH r3 /* save irq priority */
jl [r2] /* jump to interrupt handler */
jl tos_knl_irq_leave
ret_int:
clri /* disable interrupt */
POP r3 /* irq priority */
POP sp
mov r1, g_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, [g_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, [g_context_switch_reqflg]
/* interrupt return by SW */
lr r10, [AUX_IRQ_ACT]
PUSH r10
bclr r10, r10, r3 /* clear related bits in IRQ_ACT */
sr r10, [AUX_IRQ_ACT]
SAVE_CALLEE_REGS /* save callee save registers */
mov r1, ret_int_r /* save return address */
PUSH r1
ld r0, [k_curr_task]
ld r1, [k_next_task]
b dispatcher
ret_int_r:
RESTORE_CALLEE_REGS
/* recover AUX_IRQ_ACT to restore the interrup status */
POPAX AUX_IRQ_ACT
INTERRUPT_EPILOGUE
rtie
/****** entry for fast irq exception handling ******/
.global exc_entry_firq
.align 4
exc_entry_firq:
SAVE_FIQ_EXC_REGS
jl tos_knl_irq_enter
lr r0, [AUX_IRQ_CAUSE]
mov r1, exc_int_handler_table
/* r2 = _kernel_exc_tbl + irqno *4 */
ld.as r2, [r1, r0]
/* for the case of software triggered interrupt */
lr r3, [AUX_IRQ_HINT]
cmp r3, r0
bne.d firq_hint_handled
xor r3, r3, r3
sr r3, [AUX_IRQ_HINT]
firq_hint_handled:
/* jump to interrupt handler */
mov r0, sp
jl [r2]
jl tos_knl_irq_leave
firq_return:
RESTORE_FIQ_EXC_REGS
rtie
/*
* uint32_t port_cpu_clz(uint32_t val)
* r0 --> val
*/
.global port_cpu_clz
.align 4
port_cpu_clz:
breq r0, 0, cpu_clz_return
fls r1, r0
add r0, r1, 1
cpu_clz_return:
j [blink]

133
arch/arc/common/include/tos_cpu.h Normal file
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/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#ifndef _TOS_CPU_H_
#define _TOS_CPU_H_
typedef struct cpu_context_st {
cpu_data_t pc;
cpu_data_t blink;
cpu_data_t task;
cpu_data_t status32;
cpu_data_t r0;
} cpu_context_t;
__API__ uint32_t tos_cpu_clz(uint32_t val);
__API__ void tos_cpu_int_disable(void);
__API__ void tos_cpu_int_enable(void);
__API__ cpu_cpsr_t tos_cpu_cpsr_save(void);
__API__ void tos_cpu_cpsr_restore(cpu_cpsr_t cpsr);
#if (TOS_CFG_CPU_HRTIMER_EN > 0u)
__API__ void tos_cpu_hrtimer_init(void);
__API__ cpu_hrtimer_t tos_cpu_hrtimer_read(void);
#endif
__KNL__ void cpu_init(void);
__KNL__ void cpu_reset(void);
__KNL__ void cpu_systick_init(k_cycle_t cycle_per_tick);
__KNL__ void cpu_sched_start(void);
__KNL__ void cpu_context_switch(void);
__KNL__ void cpu_irq_context_switch(void);
#if TOS_CFG_TASK_STACK_DRAUGHT_DEPTH_DETACT_EN > 0u
__KNL__ k_err_t cpu_task_stack_draught_depth(k_stack_t *stk_base, size_t stk_size, int *depth);
#endif
__KNL__ k_stack_t *cpu_task_stk_init(void *entry,
void *arg,
void *exit,
k_stack_t *stk_base,
size_t stk_size);
#if TOS_CFG_TICKLESS_EN > 0u
__KNL__ void cpu_systick_resume(void);
__KNL__ void cpu_systick_suspend(void);
__KNL__ void cpu_systick_reload_reset(void);
__KNL__ void cpu_systick_pending_reset(void);
__KNL__ k_time_t cpu_systick_max_delay_millisecond(void);
__KNL__ void cpu_systick_expires_set(k_time_t millisecond);
__KNL__ void cpu_systick_reset(void);
#endif
#if TOS_CFG_PWR_MGR_EN > 0u
__KNL__ void cpu_sleep_mode_enter(void);
__KNL__ void cpu_stop_mode_enter(void);
__KNL__ void cpu_standby_mode_enter(void);
#endif
/* Allocates CPU status register word. */
#define TOS_CPU_CPSR_ALLOC() cpu_cpsr_t cpu_cpsr = (cpu_cpsr_t)0u
/* Save CPU status word & disable interrupts.*/
#define TOS_CPU_INT_DISABLE() \
do { \
cpu_cpsr = tos_cpu_cpsr_save(); \
} while (0)
/* Restore CPU status word. */
#define TOS_CPU_INT_ENABLE() \
do { \
tos_cpu_cpsr_restore(cpu_cpsr); \
} while (0)
#endif /* _TOS_CPU_H_ */

34
arch/arc/common/include/tos_cpu_def.h Normal file
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/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#ifndef _TOS_CPU_DEF_H_
#define _TOS_CPU_DEF_H_
enum CPU_WORD_SIZE {
CPU_WORD_SIZE_08,
CPU_WORD_SIZE_16,
CPU_WORD_SIZE_32,
CPU_WORD_SIZE_64,
};
enum CPU_STK_GROWTH {
CPU_STK_GROWTH_ASCENDING,
CPU_STK_GROWTH_DESCENDING,
};
#endif /* _TOS_CPU_DEF_H_ */

57
arch/arc/common/include/tos_cpu_types.h Normal file
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/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#ifndef _TOS_CPU_TYPES_H_
#define _TOS_CPU_TYPES_H_
/* CPU address type based on address bus size. */
#if (TOS_CFG_CPU_ADDR_SIZE == CPU_WORD_SIZE_32)
typedef uint32_t cpu_addr_t;
#elif (TOS_CFG_CPU_ADDR_SIZE == CPU_WORD_SIZE_16)
typedef uint16_t cpu_addr_t;
#else
typedef uint8_t cpu_addr_t;
#endif
/* CPU data type based on data bus size. */
#if (TOS_CFG_CPU_DATA_SIZE == CPU_WORD_SIZE_32)
typedef uint32_t cpu_data_t;
#elif (TOS_CFG_CPU_DATA_SIZE == CPU_WORD_SIZE_16)
typedef uint16_t cpu_data_t;
#else
typedef uint8_t cpu_data_t;
#endif
#if (TOS_CFG_CPU_HRTIMER_EN > 0)
#if (TOS_CFG_CPU_HRTIMER_SIZE == CPU_WORD_SIZE_08)
typedef uint8_t cpu_hrtimer_t;
#elif (TOS_CFG_CPU_HRTIMER_SIZE == CPU_WORD_SIZE_16)
typedef uint16_t cpu_hrtimer_t;
#elif (TOS_CFG_CPU_HRTIMER_SIZE == CPU_WORD_SIZE_64)
typedef uint64_t cpu_hrtimer_t;
#else
typedef uint32_t cpu_hrtimer_t;
#endif
#else
typedef uint32_t cpu_hrtimer_t;
#endif
//typedef cpu_addr_t size_t;
typedef cpu_addr_t cpu_cpsr_t;
#endif

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arch/arc/common/include/tos_fault.h Normal file
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/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#ifndef _TOS_FAULT_H_
#define _TOS_FAULT_H_
#if TOS_CFG_FAULT_BACKTRACE_EN > 0u
#error "unsupport now"
#endif
#endif /* _TOS_FAULT_H_ */

266
arch/arc/common/tos_cpu.c Normal file
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/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#include <tos_k.h>
#include "embARC.h"
void tos_cpu_tick_handler(void)
{
arc_timer_int_clear(BOARD_OS_TIMER_ID);
tos_tick_handler();
}
__API__ uint32_t tos_cpu_clz(uint32_t val)
{
#if defined(TOS_CFG_CPU_LEAD_ZEROS_ASM_PRESENT) && (TOS_CFG_CPU_LEAD_ZEROS_ASM_PRESENT == 0u)
uint32_t nbr_lead_zeros = 0;
if (!(val & 0XFFFF0000)) {
val <<= 16;
nbr_lead_zeros += 16;
}
if (!(val & 0XFF000000)) {
val <<= 8;
nbr_lead_zeros += 8;
}
if (!(val & 0XF0000000)) {
val <<= 4;
nbr_lead_zeros += 4;
}
if (!(val & 0XC0000000)) {
val <<= 2;
nbr_lead_zeros += 2;
}
if (!(val & 0X80000000)) {
nbr_lead_zeros += 1;
}
if (!val) {
nbr_lead_zeros += 1;
}
return (nbr_lead_zeros);
#else
return (32 - port_cpu_clz(val));
#endif
}
__API__ void tos_cpu_int_disable(void)
{
arc_lock();
}
__API__ void tos_cpu_int_enable(void)
{
arc_unlock();
}
__API__ cpu_cpsr_t tos_cpu_cpsr_save(void)
{
return (cpu_cpsr_t)arc_lock_save();
}
__API__ void tos_cpu_cpsr_restore(cpu_cpsr_t cpsr)
{
arc_unlock_restore(cpsr);
}
__KNL__ void cpu_init(void)
{
k_cpu_cycle_per_tick = TOS_CFG_CPU_CLOCK / k_cpu_tick_per_second;
cpu_systick_init(k_cpu_cycle_per_tick);
#if (TOS_CFG_CPU_HRTIMER_EN > 0)
tos_cpu_hrtimer_init();
#endif
}
__KNL__ void cpu_reset(void)
{
port_cpu_reset();
}
__KNL__ void cpu_sched_start(void)
{
port_sched_start();
}
__KNL__ void cpu_context_switch(void)
{
port_context_switch();
}
__KNL__ void cpu_irq_context_switch(void)
{
port_irq_context_switch();
}
__KNL__ void cpu_systick_init(k_cycle_t cycle_per_tick)
{
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, cycle_per_tick);
int_handler_install(BOARD_OS_TIMER_INTNO, (INT_HANDLER_T)tos_cpu_tick_handler);
int_pri_set(BOARD_OS_TIMER_INTNO, INT_PRI_MIN + 1);
int_enable(BOARD_OS_TIMER_INTNO);
}
#if TOS_CFG_TICKLESS_EN > 0u
/**
* @brief Set value to systick reload value register
*
* @param cycles The value set to register
*
* @return None
*/
__STATIC_INLINE__ void cpu_systick_reload(k_cycle_t cycle_per_tick)
{
port_systick_reload(cycle_per_tick);
}
/**
* @brief Enable systick interrupt
*
* @return None
*/
__KNL__ void cpu_systick_resume(void)
{
port_systick_resume();
}
/**
* @brief Disable systick interrupt
*
* @return None
*/
__KNL__ void cpu_systick_suspend(void)
{
port_systick_suspend();
}
__KNL__ k_time_t cpu_systick_max_delay_millisecond(void)
{
return port_systick_max_delay_millisecond();
}
__KNL__ void cpu_systick_expires_set(k_time_t millisecond)
{
k_cycle_t cycles;
cycles = (k_cycle_t)((uint64_t)millisecond * TOS_CFG_CPU_CLOCK / K_TIME_MILLISEC_PER_SEC); /* CLOCK means cycle per second */
cpu_systick_reload(cycles - 12); /* interrupt delay */
}
__KNL__ void cpu_systick_pending_reset(void)
{
port_systick_pending_reset();
}
__KNL__ void cpu_systick_reset(void)
{
cpu_systick_reload(k_cpu_cycle_per_tick);
}
#endif /* TOS_CFG_TICKLESS_EN */
#if TOS_CFG_PWR_MGR_EN > 0u
__KNL__ void cpu_sleep_mode_enter(void)
{
port_sleep_mode_enter();
}
__KNL__ void cpu_stop_mode_enter(void)
{
port_stop_mode_enter();
}
__KNL__ void cpu_standby_mode_enter(void)
{
port_standby_mode_enter();
}
#endif /* TOS_CFG_PWR_MGR_EN */
uint32_t g_context_switch_reqflg;
uint32_t g_exc_nest_count;
extern void start_r(void);
#if ARC_FEATURE_STACK_CHECK
#define ARC_INIT_STATUS ((1 << AUX_STATUS_BIT_SC) | AUX_STATUS_MASK_IE | ((-1 - INT_PRI_MIN) << 1) | STATUS32_RESET_VALUE)
#else
#define ARC_INIT_STATUS (AUX_STATUS_MASK_IE | ((-1 - INT_PRI_MIN) << 1) | STATUS32_RESET_VALUE)
#endif
__KNL__ k_stack_t *cpu_task_stk_init(void *entry,
void *arg,
void *exit,
k_stack_t *stk_base,
size_t stk_size)
{
cpu_data_t *sp;
cpu_context_t *regs = 0;
sp = (cpu_data_t *)&stk_base[stk_size];
sp = (cpu_data_t *)((cpu_addr_t)sp & 0xFFFFFFFC);
sp -= (sizeof(cpu_context_t)/sizeof(cpu_data_t));
regs = (cpu_context_t*) sp;
regs->pc = (cpu_data_t)start_r;
regs->blink = (cpu_data_t)exit;
regs->task = (cpu_data_t)entry;
regs->status32 = ARC_INIT_STATUS;
regs->r0 = (cpu_data_t)arg;
return (k_stack_t *)sp;
}
#if TOS_CFG_TASK_STACK_DRAUGHT_DEPTH_DETACT_EN > 0u
__KNL__ k_err_t cpu_task_stack_draught_depth(k_stack_t *stk_base, size_t stk_size, int *depth)
{
uint8_t *slot;
uint8_t *sp, *bp;
int the_depth = 0;
bp = (uint8_t *)&stk_base[0];
sp = &stk_base[stk_size];
sp = (uint8_t *)((cpu_addr_t)sp & 0xFFFFFFF8);
for (slot = sp - 1; slot >= bp; --slot) {
if (*slot != 0xCC) {
the_depth = sp - slot;
}
}
*depth = the_depth;
if (the_depth == stk_size) {
return K_ERR_TASK_STK_OVERFLOW;
}
return K_ERR_NONE;
}
#endif

56
arch/arc/common/tos_embarc.c Normal file
View File

@@ -0,0 +1,56 @@
/* ------------------------------------------
* Copyright (c) 2020, Synopsys, Inc. All rights reserved.
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1) Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2) Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* 3) Neither the name of the Synopsys, Inc., nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
--------------------------------------------- */
#include <stdio.h>
#include "cmsis_os.h"
#include "embARC.h"
#include "embARC_debug.h"
#define APPLICATION_TASK_STK_SIZE 1024
extern void application_entry(void *arg);
osThreadDef(application_entry, osPriorityNormal, 1, APPLICATION_TASK_STK_SIZE);
EMBARC_WEAK void application_entry(void *arg)
{
while (1) {
printf("This is a demo task,please use your task entry!\r\n");
tos_task_delay(1000);
}
}
int main(void)
{
/* OS kernel initialization */
osKernelInitialize();
/* application initialization entry */
osThreadCreate(osThread(application_entry), NULL);
/* start kernel */
osKernelStart();
}

47
board/ARC_NSIM_EM/BSP/Inc/tos_config.h Normal file
View File

@@ -0,0 +1,47 @@
#ifndef _TOS_CONFIG_H_
#define _TOS_CONFIG_H_
#include "stddef.h"
#include "embARC.h"
#define TOS_CFG_TASK_PRIO_MAX 10u
#define TOS_CFG_ROUND_ROBIN_EN 1u
#define TOS_CFG_OBJECT_VERIFY 0u
#define TOS_CFG_EVENT_EN 1u
#define TOS_CFG_MMHEAP_EN 1u
#define TOS_CFG_MMHEAP_POOL_SIZE (1024*20)
#define TOS_CFG_MMHEAP_DEFAULT_POOL_SIZE (1024*20)
#define TOS_CFG_MUTEX_EN 1u
#define TOS_CFG_QUEUE_EN 1u
#define TOS_CFG_TIMER_EN 1u
#define TOS_CFG_SEM_EN 1u
#define TOS_CFG_MMBLK_EN 1u
#if (TOS_CFG_QUEUE_EN > 0u)
#define TOS_CFG_MSG_EN 1u
#else
#define TOS_CFG_MSG_EN 0u
#endif
#define TOS_CFG_MSG_POOL_SIZE 10u
#define TOS_CFG_IDLE_TASK_STK_SIZE 256u
#define TOS_CFG_CPU_TICK_PER_SECOND 100u
#define TOS_CFG_CPU_CLOCK BOARD_CPU_CLOCK
#define TOS_CFG_TIMER_AS_PROC 1u
#endif

277
board/ARC_NSIM_EM/hello_world/Makefile Normal file
View File

@@ -0,0 +1,277 @@
# ------------------------------------------------
# Generic Makefile for Synopsys Designware ARC processor
# ------------------------------------------------
######################################
# target
######################################
TARGET = TencentOS_tiny
APPLICATION = hello_world
######################################
# building variables
######################################
# debug build?
DEBUG = 1
# optimization
OPT = -O0
# the root of TencentOS Tiny
TOP_DIR = ../../..
#######################################
# paths
#######################################
# Build path
BUILD_DIR = build
#######################################
# embarc_bsp relative conifg
#######################################
BOARD ?= nsim
BD_VER ?= 10
CUR_CORE ?= arcem
TOOLCHAIN ?= mw
OLEVEL ?= O0
OUT_DIR_ROOT ?= $(BUILD_DIR)
export BOARD
export BD_VER
export CUR_CORE
export TOOLCHAIN
export OUT_DIR_ROOT
export OLEVEL
EMBARC_BSP_ROOT = $(TOP_DIR)/platform/vendor_bsp/Synopsys/ARC/embarc_bsp
EMBARC_BSP_TEST_FILE = $(EMBARC_BSP_ROOT)/arc/startup/arc_startup.s
ifeq ($(wildcard $(EMBARC_BSP_TEST_FILE)),)
$(info )
$(info )
$(info )
$(info ######################################################################################################)
$(info # #)
$(info # embarc_bsp not exist!!! #)
$(info # please git embarc_bsp from github #)
$(info # run the following cmd in folder <TOP_DIR>/platform/vendor_bsp/Synopsys/ARC>: #)
$(info # git clone https://github.com/foss-for-synopsys-dwc-arc-processors/embarc_bsp.git -b upstream #)
$(info # #)
$(info ######################################################################################################)
$(info )
$(info )
$(info )
$(error [Makefile.error]: embarc_bsp not exist!!!)
endif
EMBARC_ROOT = $(EMBARC_BSP_ROOT)
export EMBARC_ROOT
EMBARC_OUT_DIR = $(OUT_DIR_ROOT)/obj_$(BOARD)_$(BD_VER)/$(TOOLCHAIN)_$(CUR_CORE)
ifeq ($(TOOLCHAIN),mw)
COMPILER_ARG_FILE := $(EMBARC_OUT_DIR)/embARC_generated/ccac.arg
LDF_FILE := $(EMBARC_OUT_DIR)/linker_mw.ldf
MDB_ARG_FILE := $(EMBARC_OUT_DIR)/embARC_generated/mdb.arg
else
COMPILER_ARG_FILE := $(EMBARC_OUT_DIR)/embARC_generated/gcc.arg
LDF_FILE := $(EMBARC_OUT_DIR)/linker_gnu.ldf
NSIM_PROPS := $(EMBARC_OUT_DIR)/embARC_generated/nsim.props
endif
######################################
# source
######################################
# C sources
KERNEL_SRC = \
${wildcard $(TOP_DIR)/kernel/core/*.c}
C_SOURCES += $(KERNEL_SRC)
ARCH_SRC = \
${wildcard $(TOP_DIR)/arch/arc/arcem/*.c} \
${wildcard $(TOP_DIR)/arch/arc/common/*.c}
C_SOURCES += $(ARCH_SRC)
CMSIS_SRC = \
${wildcard $(TOP_DIR)/osal/cmsis_os/cmsis_os.c}
C_SOURCES += $(CMSIS_SRC)
APPLICATION_SRC = \
${wildcard $(TOP_DIR)/board/ARC_NSIM_EM/BSP/Src/*.c} \
${wildcard $(TOP_DIR)/examples/$(APPLICATION)/*.c}
C_SOURCES += $(APPLICATION_SRC)
# ASM sources
ASM_SOURCES = \
$(TOP_DIR)/arch/arc/arcem/port_s.s
ifeq ($(TOOLCHAIN),mw)
PREFIX =
CC = $(PREFIX)ccac
AS = $(PREFIX)ccac
SZ = $(PREFIX)sizeac
OBJCOPY = $(PREFIX)elf2bin
ELF2HEX = $(PREFIX)elf2hex
ELF2HEX_INOPT = -Q -I
ELF2HEX_OUTOPT = -o
ELF2BIN_OPT =
else
PREFIX = arc-elf32-
CC = $(PREFIX)gcc
AS = $(PREFIX)gcc -x assembler-with-cpp
SZ = $(PREFIX)size
OBJCOPY = $(PREFIX)objcopy
ELF2HEX = $(OBJCOPY)
ELF2HEX_INOPT = -O ihex
ELF2HEX_OUTOPT =
ELF2BIN_OPT = -O binary -S
endif
#######################################
# CFLAGS
#######################################
# C defines
NSIM_STACK_CHECK := -DARC_FEATURE_STACK_CHECK=0
# 1: enable hardware stack check, 0 disable hardware stack check
ifeq ($(TOOLCHAIN),mw)
TOOLCHAIN_DEF := -D__MW__
else
TOOLCHAIN_DEF := -D__GNU__ -D_HAVE_LIBGLOSS_
endif
C_DEFS = \
$(TOOLCHAIN_DEF) \
$(NSIM_STACK_CHECK) \
-DBOARD_NSIM \
-DCURRENT_CORE=$(CUR_CORE) \
-DEMBARC_TCF_GENERATED \
-DHW_VERSION=$(BD_VER) \
-DLIB_CONSOLE \
-DLIB_CLIB \
-D_HEAPSIZE=8192 \
-D_HOSTLINK_ \
-D_NSIM_ \
-D_STACKSIZE=2048 \
-DARC_FEATURE_STACK_CHECK=0
# include dirs
ARCH_INC = \
-I $(TOP_DIR)/arch/arc/arcem \
-I $(TOP_DIR)/arch/arc/common/include
C_INCLUDES += $(ARCH_INC)
BOARD_INC = \
-I $(TOP_DIR)/board/ARC_NSIM_EM/BSP/Inc
C_INCLUDES += $(BOARD_INC)
KERNEL_INC = \
-I $(TOP_DIR)/kernel/core/include \
-I $(TOP_DIR)/kernel/pm/include \
-I $(TOP_DIR)/kernel/hal/include
C_INCLUDES += $(KERNEL_INC)
CMSIS_INC = \
-I $(TOP_DIR)/osal/cmsis_os
C_INCLUDES += $(CMSIS_INC)
EMBARC_BSP_INC = \
-I $(EMBARC_BSP_ROOT)/board \
-I $(EMBARC_BSP_ROOT)/board/nsim/configs/10 \
-I $(EMBARC_BSP_ROOT)/include \
-I $(EMBARC_BSP_ROOT)/include/arc \
-I $(EMBARC_BSP_ROOT)/include/device/designware \
-I $(EMBARC_BSP_ROOT)/include/device/subsystem \
-I $(EMBARC_BSP_ROOT)/library \
-I $(EMBARC_OUT_DIR)/embARC_generated
C_INCLUDES += $(EMBARC_BSP_INC)
ifeq ($(TOOLCHAIN),mw)
ASFLAGS = @$(COMPILER_ARG_FILE) -Hnoccm -Hnosdata -Wincompatible-pointer-types -Hnocopyr -Hasmcpp -$(OLEVEL) -g $(C_DEFS) $(C_INCLUDES) -MMD -MT $@ -MF $@.d
CFLAGS = @$(COMPILER_ARG_FILE) -Hnoccm -Hnosdata -Wincompatible-pointer-types -Hnocopyr -Hnocplus -$(OLEVEL) -g $(C_DEFS) $(C_INCLUDES) -MMD -MT $@ -MF $@.d
LDFLAGS = -Hhostlink @$(COMPILER_ARG_FILE) -Hnocopyr -Hnosdata -Hnocrt -Hldopt=-Coutput=$(BUILD_DIR)/mw_arcem.map -Hldopt=-Csections -Hldopt=-Ccrossfunc -Hldopt=-Csize -zstdout $(LDF_FILE)
else
ASFLAGS = @$(COMPILER_ARG_FILE) -fdata-sections -ffunction-sections -mno-sdata -$(OLEVEL) -g $(C_DEFS) $(C_INCLUDES) -x assembler-with-cpp
CFLAGS = @$(COMPILER_ARG_FILE) -fdata-sections -ffunction-sections -mno-sdata -$(OLEVEL) -g $(C_DEFS) $(C_INCLUDES) -std=gnu99
LDFLAGS = --specs=nsim.specs @$(COMPILER_ARG_FILE) -mno-sdata -nostartfiles -Wl,-M,-Map=$(BUILD_DIR)/gnu_arcem.map -lm -Wl,--script=$(LDF_FILE)
endif
# default action: build all
all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).bin
#######################################
# build the application
#######################################
# list of objects
OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(C_SOURCES)))
# list of ASM program objects
OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(ASM_SOURCES:.s=.o)))
vpath %.s $(sort $(dir $(ASM_SOURCES)))
OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(ASM_SOURCES_S:.S=.o)))
vpath %.S $(sort $(dir $(ASM_SOURCES_S)))
# EMBARC_PREBUILT_LIBRARY = -Hldopt=-Bgrouplib
EMBARC_PREBUILT_LIBRARY = $(EMBARC_OUT_DIR)/libembarc.a
build_embarc_lib: | $(BUILD_DIR)
make -f $(EMBARC_BSP_ROOT)/options/options.mk V=1 embarc_lib
$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR)
$(CC) -c $(CFLAGS) $< -o $@
$(BUILD_DIR)/%.o: %.s Makefile | $(BUILD_DIR)
$(AS) -c $(ASFLAGS) $< -o $@
$(BUILD_DIR)/%.o: %.S Makefile | $(BUILD_DIR)
$(AS) -c $(ASFLAGS) $< -o $@
$(BUILD_DIR)/$(TARGET).elf: build_embarc_lib $(OBJECTS) Makefile
$(CC) $(LDFLAGS) $(OBJECTS) $(EMBARC_PREBUILT_LIBRARY) -o $@
$(SZ) $@
$(BUILD_DIR)/%.hex: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
$(ELF2HEX) $(ELF2HEX_INOPT) $< $(ELF2HEX_OUTOPT) $@
$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
$(OBJCOPY) $(ELF2BIN_OPT) $< $@
$(BUILD_DIR):
mkdir $@
#######################################
# clean up
#######################################
clean:
-rm -fR $(BUILD_DIR)
nsim_debug : $(BUILD_DIR)/$(TARGET).elf
mdb -nooptions -nogoifmain -toggle=include_local_symbols=1 -nsim -off=binary_stdin -off=binary_stdout -on=load_at_paddr -on=reset_upon_restart -off=flush_pipe -off=cr_for_more -OKN @$(MDB_ARG_FILE) $<
#######################################
# dependencies
#######################################
run : $(BUILD_DIR)/$(TARGET).elf
ifeq ($(TOOLCHAIN),mw)
mdb -nooptions -nogoifmain -toggle=include_local_symbols=1 -nsim -off=binary_stdin -off=binary_stdout -on=load_at_paddr -on=reset_upon_restart -off=flush_pipe -off=cr_for_more -OKN @$(MDB_ARG_FILE) -run $<
else
nsimdrv -p nsim_emt=1 -propsfile $(NSIM_PROPS) $<
endif
-include $(wildcard $(BUILD_DIR)/*.d)
# *** EOF ***

5
examples/hello_world/hello_world.c
View File

@@ -1,10 +1,10 @@
#include "cmsis_os.h"
#define TASK1_STK_SIZE 512
#define TASK1_STK_SIZE 1024
void task1(void *arg);
osThreadDef(task1, osPriorityNormal, 1, TASK1_STK_SIZE);
#define TASK2_STK_SIZE 512
#define TASK2_STK_SIZE 1024
void task2(void *arg);
osThreadDef(task2, osPriorityNormal, 1, TASK2_STK_SIZE);
@@ -65,6 +65,7 @@ void task3(void *arg)
void application_entry(void *arg)
{
printf("***I am task\r\n");
osThreadCreate(osThread(task1), NULL); // Create task1
osThreadCreate(osThread(task2), NULL); // Create task2
}

10
osal/cmsis_os/cmsis_os2.c
View File

@@ -588,18 +588,18 @@ uint32_t osEventFlagsWait(osEventFlagsId_t ef_id,
} else {
k_event_flag_t flag_match;
k_opt_t opt_pend = 0;
k_tick_t timeout =
(timeout == 0 || timeout == osWaitForever) ? TOS_TIME_FOREVER : timeout;
if (options & 0x01 == 0) {
timeout =
((timeout == 0) || (timeout == osWaitForever)) ? TOS_TIME_FOREVER : timeout;
if (options & (0x01 == 0)) {
opt_pend |= TOS_OPT_EVENT_PEND_ANY;
} else {
opt_pend |= TOS_OPT_EVENT_PEND_ALL;
}
if (options & 0x02 == 0) {
if (options & (0x02 == 0)) {
opt_pend |= TOS_OPT_EVENT_PEND_CLR;
}
err = tos_event_pend(eventId, (k_event_flag_t)flags, &flag_match, timeout,
err = tos_event_pend(eventId, (k_event_flag_t)flags, &flag_match, (k_tick_t)timeout,
opt_pend);
rflags = err == K_ERR_NONE ? (uint32_t)flag_match
: (uint32_t)errno_knl2cmsis(err);

1
platform/vendor_bsp/Synopsys/ARC/embarc_bsp Submodule

Submodule platform/vendor_bsp/Synopsys/ARC/embarc_bsp added at 74ca775f15