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pinebuds/rtos/rtx5/rtx_lib.c

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/*
* Copyright (c) 2013-2019 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* -----------------------------------------------------------------------------
*
* Project: CMSIS-RTOS RTX
* Title: RTX Library Configuration
*
* -----------------------------------------------------------------------------
*/
#include "cmsis_compiler.h"
#include "rtx_config.h"
#include "rtx_os.h"
#ifdef RTE_Compiler_EventRecorder
#include "EventRecorder.h"
#include "EventRecorderConf.h"
#endif
#include "rtx_evr.h"
// System Configuration
// ====================
// Dynamic Memory
#if (OS_DYNAMIC_MEM_SIZE != 0)
#if ((OS_DYNAMIC_MEM_SIZE % 8) != 0)
#error "Invalid Dynamic Memory size!"
#endif
static uint64_t os_mem[OS_DYNAMIC_MEM_SIZE / 8]
__attribute__((section(".bss.os")));
#endif
// Kernel Tick Frequency
#if (OS_TICK_FREQ < 1)
#error "Invalid Kernel Tick Frequency!"
#endif
// ISR FIFO Queue
#if (OS_ISR_FIFO_QUEUE < 4)
#error "Invalid ISR FIFO Queue size!"
#endif
static void *os_isr_queue[OS_ISR_FIFO_QUEUE]
__attribute__((section(".bss.os")));
// Thread Configuration
// ====================
#if (((OS_STACK_SIZE % 8) != 0) || (OS_STACK_SIZE < 72))
#error "Invalid default Thread Stack size!"
#endif
#if (((OS_IDLE_THREAD_STACK_SIZE % 8) != 0) || (OS_IDLE_THREAD_STACK_SIZE < 72))
#error "Invalid Idle Thread Stack size!"
#endif
#if (OS_THREAD_OBJ_MEM != 0)
#if (OS_THREAD_NUM == 0)
#error "Invalid number of user Threads!"
#endif
#if ((OS_THREAD_USER_STACK_SIZE != 0) && ((OS_THREAD_USER_STACK_SIZE % 8) != 0))
#error "Invalid total Stack size!"
#endif
// Thread Control Blocks
static osRtxThread_t os_thread_cb[OS_THREAD_NUM]
__attribute__((section(".bss.os.thread.cb")));
// Thread Default Stack
#if (OS_THREAD_DEF_STACK_NUM != 0)
static uint64_t
os_thread_def_stack[OS_THREAD_DEF_STACK_NUM * (OS_STACK_SIZE / 8)]
__attribute__((section(".bss.os.thread.stack")));
#endif
// Memory Pool for Thread Control Blocks
static osRtxMpInfo_t os_mpi_thread
__attribute__((section(".data.os.thread.mpi"))) = {
(uint32_t)OS_THREAD_NUM, 0U, (uint32_t)osRtxThreadCbSize,
&os_thread_cb[0], NULL, NULL};
// Memory Pool for Thread Default Stack
#if (OS_THREAD_DEF_STACK_NUM != 0)
static osRtxMpInfo_t os_mpi_def_stack
__attribute__((section(".data.os.thread.mpi"))) = {
(uint32_t)OS_THREAD_DEF_STACK_NUM, 0U, (uint32_t)OS_STACK_SIZE,
&os_thread_def_stack[0], NULL, NULL};
#endif
// Memory Pool for Thread Stack
#if (OS_THREAD_USER_STACK_SIZE != 0)
static uint64_t
os_thread_stack[2 + OS_THREAD_NUM + (OS_THREAD_USER_STACK_SIZE / 8)]
__attribute__((section(".bss.os.thread.stack")));
#endif
#endif // (OS_THREAD_OBJ_MEM != 0)
// Stack overrun checking
#if (OS_STACK_CHECK == 0)
// Override library function
extern void osRtxThreadStackCheck(void);
void osRtxThreadStackCheck(void) {}
#endif
// Idle Thread Control Block
static osRtxThread_t os_idle_thread_cb
__attribute__((section(".bss.os.thread.cb")));
// Idle Thread Stack
static uint64_t os_idle_thread_stack[OS_IDLE_THREAD_STACK_SIZE / 8]
__attribute__((section(".bss.os.thread.stack")));
// Idle Thread Attributes
static const osThreadAttr_t os_idle_thread_attr = {
#if defined(OS_IDLE_THREAD_NAME)
OS_IDLE_THREAD_NAME,
#else
NULL,
#endif
osThreadDetached,
&os_idle_thread_cb,
(uint32_t)sizeof(os_idle_thread_cb),
&os_idle_thread_stack[0],
(uint32_t)sizeof(os_idle_thread_stack),
osPriorityIdle,
#if defined(OS_IDLE_THREAD_TZ_MOD_ID)
(uint32_t)OS_IDLE_THREAD_TZ_MOD_ID,
#else
0U,
#endif
0U};
// Timer Configuration
// ===================
#if (OS_TIMER_OBJ_MEM != 0)
#if (OS_TIMER_NUM == 0)
#error "Invalid number of Timer objects!"
#endif
// Timer Control Blocks
static osRtxTimer_t os_timer_cb[OS_TIMER_NUM]
__attribute__((section(".bss.os.timer.cb")));
// Memory Pool for Timer Control Blocks
static osRtxMpInfo_t os_mpi_timer
__attribute__((section(".data.os.timer.mpi"))) = {
(uint32_t)OS_TIMER_NUM, 0U, (uint32_t)osRtxTimerCbSize,
&os_timer_cb[0], NULL, NULL};
#endif // (OS_TIMER_OBJ_MEM != 0)
#if ((OS_TIMER_THREAD_STACK_SIZE != 0) && (OS_TIMER_CB_QUEUE != 0))
#if (((OS_TIMER_THREAD_STACK_SIZE % 8) != 0) || \
(OS_TIMER_THREAD_STACK_SIZE < 96))
#error "Invalid Timer Thread Stack size!"
#endif
// Timer Thread Control Block
static osRtxThread_t os_timer_thread_cb
__attribute__((section(".bss.os.thread.cb")));
// Timer Thread Stack
static uint64_t os_timer_thread_stack[OS_TIMER_THREAD_STACK_SIZE / 8]
__attribute__((section(".bss.os.thread.stack")));
// Timer Thread Attributes
static const osThreadAttr_t os_timer_thread_attr = {
#if defined(OS_TIMER_THREAD_NAME)
OS_TIMER_THREAD_NAME,
#else
NULL,
#endif
osThreadDetached, &os_timer_thread_cb, (uint32_t)sizeof(os_timer_thread_cb),
&os_timer_thread_stack[0], (uint32_t)sizeof(os_timer_thread_stack),
// lint -e{9030} -e{9034} "cast from signed to enum"
(osPriority_t)OS_TIMER_THREAD_PRIO,
#if defined(OS_TIMER_THREAD_TZ_MOD_ID)
(uint32_t)OS_TIMER_THREAD_TZ_MOD_ID,
#else
0U,
#endif
0U};
// Timer Message Queue Control Block
static osRtxMessageQueue_t os_timer_mq_cb
__attribute__((section(".bss.os.msgqueue.cb")));
// Timer Message Queue Data
static uint32_t
os_timer_mq_data[osRtxMessageQueueMemSize(OS_TIMER_CB_QUEUE, 8) / 4]
__attribute__((section(".bss.os.msgqueue.mem")));
// Timer Message Queue Attributes
static const osMessageQueueAttr_t os_timer_mq_attr = {
NULL,
0U,
&os_timer_mq_cb,
(uint32_t)sizeof(os_timer_mq_cb),
&os_timer_mq_data[0],
(uint32_t)sizeof(os_timer_mq_data)};
#else
extern void osRtxTimerThread(void *argument);
void osRtxTimerThread(void *argument) { (void)argument; }
#endif // ((OS_TIMER_THREAD_STACK_SIZE != 0) && (OS_TIMER_CB_QUEUE != 0))
// Event Flags Configuration
// =========================
#if (OS_EVFLAGS_OBJ_MEM != 0)
#if (OS_EVFLAGS_NUM == 0)
#error "Invalid number of Event Flags objects!"
#endif
// Event Flags Control Blocks
static osRtxEventFlags_t os_ef_cb[OS_EVFLAGS_NUM]
__attribute__((section(".bss.os.evflags.cb")));
// Memory Pool for Event Flags Control Blocks
static osRtxMpInfo_t os_mpi_ef __attribute__((
section(".data.os.evflags.mpi"))) = {(uint32_t)OS_EVFLAGS_NUM,
0U,
(uint32_t)osRtxEventFlagsCbSize,
&os_ef_cb[0],
NULL,
NULL};
#endif // (OS_EVFLAGS_OBJ_MEM != 0)
// Mutex Configuration
// ===================
#if (OS_MUTEX_OBJ_MEM != 0)
#if (OS_MUTEX_NUM == 0)
#error "Invalid number of Mutex objects!"
#endif
// Mutex Control Blocks
static osRtxMutex_t os_mutex_cb[OS_MUTEX_NUM]
__attribute__((section(".bss.os.mutex.cb")));
// Memory Pool for Mutex Control Blocks
static osRtxMpInfo_t os_mpi_mutex
__attribute__((section(".data.os.mutex.mpi"))) = {
(uint32_t)OS_MUTEX_NUM, 0U, (uint32_t)osRtxMutexCbSize,
&os_mutex_cb[0], NULL, NULL};
#endif // (OS_MUTEX_OBJ_MEM != 0)
// Semaphore Configuration
// =======================
#if (OS_SEMAPHORE_OBJ_MEM != 0)
#if (OS_SEMAPHORE_NUM == 0)
#error "Invalid number of Semaphore objects!"
#endif
// Semaphore Control Blocks
static osRtxSemaphore_t os_semaphore_cb[OS_SEMAPHORE_NUM]
__attribute__((section(".bss.os.semaphore.cb")));
// Memory Pool for Semaphore Control Blocks
static osRtxMpInfo_t os_mpi_semaphore
__attribute__((section(".data.os.semaphore.mpi"))) = {
(uint32_t)OS_SEMAPHORE_NUM, 0U, (uint32_t)osRtxSemaphoreCbSize,
&os_semaphore_cb[0], NULL, NULL};
#endif // (OS_SEMAPHORE_OBJ_MEM != 0)
// Memory Pool Configuration
// =========================
#if (OS_MEMPOOL_OBJ_MEM != 0)
#if (OS_MEMPOOL_NUM == 0)
#error "Invalid number of Memory Pool objects!"
#endif
// Memory Pool Control Blocks
static osRtxMemoryPool_t os_mp_cb[OS_MEMPOOL_NUM]
__attribute__((section(".bss.os.mempool.cb")));
// Memory Pool for Memory Pool Control Blocks
static osRtxMpInfo_t os_mpi_mp __attribute__((
section(".data.os.mempool.mpi"))) = {(uint32_t)OS_MEMPOOL_NUM,
0U,
(uint32_t)osRtxMemoryPoolCbSize,
&os_mp_cb[0],
NULL,
NULL};
// Memory Pool for Memory Pool Data Storage
#if (OS_MEMPOOL_DATA_SIZE != 0)
#if ((OS_MEMPOOL_DATA_SIZE % 8) != 0)
#error "Invalid Data Memory size for Memory Pools!"
#endif
static uint64_t os_mp_data[2 + OS_MEMPOOL_NUM + (OS_MEMPOOL_DATA_SIZE / 8)]
__attribute__((section(".bss.os.mempool.mem")));
#endif
#endif // (OS_MEMPOOL_OBJ_MEM != 0)
// Message Queue Configuration
// ===========================
#if (OS_MSGQUEUE_OBJ_MEM != 0)
#if (OS_MSGQUEUE_NUM == 0)
#error "Invalid number of Message Queue objects!"
#endif
// Message Queue Control Blocks
static osRtxMessageQueue_t os_mq_cb[OS_MSGQUEUE_NUM]
__attribute__((section(".bss.os.msgqueue.cb")));
// Memory Pool for Message Queue Control Blocks
static osRtxMpInfo_t os_mpi_mq __attribute__((
section(".data.os.msgqueue.mpi"))) = {(uint32_t)OS_MSGQUEUE_NUM,
0U,
(uint32_t)osRtxMessageQueueCbSize,
&os_mq_cb[0],
NULL,
NULL};
// Memory Pool for Message Queue Data Storage
#if (OS_MSGQUEUE_DATA_SIZE != 0)
#if ((OS_MSGQUEUE_DATA_SIZE % 8) != 0)
#error "Invalid Data Memory size for Message Queues!"
#endif
static uint64_t os_mq_data[2 + OS_MSGQUEUE_NUM + (OS_MSGQUEUE_DATA_SIZE / 8)]
__attribute__((section(".bss.os.msgqueue.mem")));
#endif
#endif // (OS_MSGQUEUE_OBJ_MEM != 0)
// Event Recorder Configuration
// ============================
#if (defined(OS_EVR_INIT) && (OS_EVR_INIT != 0))
// Initial Thread configuration covered also Thread Flags and Generic Wait
#if defined(OS_EVR_THREAD_FILTER)
#if !defined(OS_EVR_THFLAGS_FILTER)
#define OS_EVR_THFLAGS_FILTER OS_EVR_THREAD_FILTER
#endif
#if !defined(OS_EVR_WAIT_FILTER)
#define OS_EVR_WAIT_FILTER OS_EVR_THREAD_FILTER
#endif
#endif
// Migrate initial filter configuration
#if defined(OS_EVR_MEMORY_FILTER)
#define OS_EVR_MEMORY_LEVEL \
(((OS_EVR_MEMORY_FILTER & 0x80U) != 0U) ? (OS_EVR_MEMORY_FILTER & 0x0FU) : 0U)
#endif
#if defined(OS_EVR_KERNEL_FILTER)
#define OS_EVR_KERNEL_LEVEL \
(((OS_EVR_KERNEL_FILTER & 0x80U) != 0U) ? (OS_EVR_KERNEL_FILTER & 0x0FU) : 0U)
#endif
#if defined(OS_EVR_THREAD_FILTER)
#define OS_EVR_THREAD_LEVEL \
(((OS_EVR_THREAD_FILTER & 0x80U) != 0U) ? (OS_EVR_THREAD_FILTER & 0x0FU) : 0U)
#endif
#if defined(OS_EVR_WAIT_FILTER)
#define OS_EVR_WAIT_LEVEL \
(((OS_EVR_WAIT_FILTER & 0x80U) != 0U) ? (OS_EVR_WAIT_FILTER & 0x0FU) : 0U)
#endif
#if defined(OS_EVR_THFLAGS_FILTER)
#define OS_EVR_THFLAGS_LEVEL \
(((OS_EVR_THFLAGS_FILTER & 0x80U) != 0U) ? (OS_EVR_THFLAGS_FILTER & 0x0FU) \
: 0U)
#endif
#if defined(OS_EVR_EVFLAGS_FILTER)
#define OS_EVR_EVFLAGS_LEVEL \
(((OS_EVR_EVFLAGS_FILTER & 0x80U) != 0U) ? (OS_EVR_EVFLAGS_FILTER & 0x0FU) \
: 0U)
#endif
#if defined(OS_EVR_TIMER_FILTER)
#define OS_EVR_TIMER_LEVEL \
(((OS_EVR_TIMER_FILTER & 0x80U) != 0U) ? (OS_EVR_TIMER_FILTER & 0x0FU) : 0U)
#endif
#if defined(OS_EVR_MUTEX_FILTER)
#define OS_EVR_MUTEX_LEVEL \
(((OS_EVR_MUTEX_FILTER & 0x80U) != 0U) ? (OS_EVR_MUTEX_FILTER & 0x0FU) : 0U)
#endif
#if defined(OS_EVR_SEMAPHORE_FILTER)
#define OS_EVR_SEMAPHORE_LEVEL \
(((OS_EVR_SEMAPHORE_FILTER & 0x80U) != 0U) \
? (OS_EVR_SEMAPHORE_FILTER & 0x0FU) \
: 0U)
#endif
#if defined(OS_EVR_MEMPOOL_FILTER)
#define OS_EVR_MEMPOOL_LEVEL \
(((OS_EVR_MEMPOOL_FILTER & 0x80U) != 0U) ? (OS_EVR_MEMPOOL_FILTER & 0x0FU) \
: 0U)
#endif
#if defined(OS_EVR_MSGQUEUE_FILTER)
#define OS_EVR_MSGQUEUE_LEVEL \
(((OS_EVR_MSGQUEUE_FILTER & 0x80U) != 0U) ? (OS_EVR_MSGQUEUE_FILTER & 0x0FU) \
: 0U)
#endif
#if defined(RTE_Compiler_EventRecorder)
// Event Recorder Initialize
__STATIC_INLINE void evr_initialize(void) {
(void)EventRecorderInitialize(OS_EVR_LEVEL, (uint32_t)OS_EVR_START);
(void)EventRecorderEnable(OS_EVR_MEMORY_LEVEL, EvtRtxMemoryNo,
EvtRtxMemoryNo);
(void)EventRecorderEnable(OS_EVR_KERNEL_LEVEL, EvtRtxKernelNo,
EvtRtxKernelNo);
(void)EventRecorderEnable(OS_EVR_THREAD_LEVEL, EvtRtxThreadNo,
EvtRtxThreadNo);
(void)EventRecorderEnable(OS_EVR_WAIT_LEVEL, EvtRtxWaitNo, EvtRtxWaitNo);
(void)EventRecorderEnable(OS_EVR_THFLAGS_LEVEL, EvtRtxThreadFlagsNo,
EvtRtxThreadFlagsNo);
(void)EventRecorderEnable(OS_EVR_EVFLAGS_LEVEL, EvtRtxEventFlagsNo,
EvtRtxEventFlagsNo);
(void)EventRecorderEnable(OS_EVR_TIMER_LEVEL, EvtRtxTimerNo, EvtRtxTimerNo);
(void)EventRecorderEnable(OS_EVR_MUTEX_LEVEL, EvtRtxMutexNo, EvtRtxMutexNo);
(void)EventRecorderEnable(OS_EVR_SEMAPHORE_LEVEL, EvtRtxSemaphoreNo,
EvtRtxSemaphoreNo);
(void)EventRecorderEnable(OS_EVR_MEMPOOL_LEVEL, EvtRtxMemoryPoolNo,
EvtRtxMemoryPoolNo);
(void)EventRecorderEnable(OS_EVR_MSGQUEUE_LEVEL, EvtRtxMessageQueueNo,
EvtRtxMessageQueueNo);
}
#else
#warning \
"Event Recorder cannot be initialized (Event Recorder component is not selected)!"
#define evr_initialize()
#endif
#endif // (OS_EVR_INIT != 0)
// OS Configuration
// ================
const osRtxConfig_t osRtxConfig __USED __attribute__((section(".rodata"))) = {
// lint -e{835} "Zero argument to operator"
0U // Flags
#if (OS_PRIVILEGE_MODE != 0)
| osRtxConfigPrivilegedMode
#endif
#if (OS_STACK_CHECK != 0)
| osRtxConfigStackCheck
#endif
#if (OS_STACK_WATERMARK != 0)
| osRtxConfigStackWatermark
#endif
,
(uint32_t)OS_TICK_FREQ,
#if (OS_ROBIN_ENABLE != 0)
(uint32_t)OS_ROBIN_TIMEOUT,
#else
0U,
#endif
{&os_isr_queue[0], (uint16_t)(sizeof(os_isr_queue) / sizeof(void *)), 0U},
{
// Memory Pools (Variable Block Size)
#if ((OS_THREAD_OBJ_MEM != 0) && (OS_THREAD_USER_STACK_SIZE != 0))
&os_thread_stack[0],
sizeof(os_thread_stack),
#else
NULL, 0U,
#endif
#if ((OS_MEMPOOL_OBJ_MEM != 0) && (OS_MEMPOOL_DATA_SIZE != 0))
&os_mp_data[0],
sizeof(os_mp_data),
#else
NULL, 0U,
#endif
#if ((OS_MSGQUEUE_OBJ_MEM != 0) && (OS_MSGQUEUE_DATA_SIZE != 0))
&os_mq_data[0],
sizeof(os_mq_data),
#else
NULL, 0U,
#endif
#if (OS_DYNAMIC_MEM_SIZE != 0)
&os_mem[0],
(uint32_t)OS_DYNAMIC_MEM_SIZE,
#else
NULL, 0U
#endif
},
{
// Memory Pools (Fixed Block Size)
#if (OS_THREAD_OBJ_MEM != 0)
#if (OS_THREAD_DEF_STACK_NUM != 0)
&os_mpi_def_stack,
#else
NULL,
#endif
&os_mpi_thread,
#else
NULL,
NULL,
#endif
#if (OS_TIMER_OBJ_MEM != 0)
&os_mpi_timer,
#else
NULL,
#endif
#if (OS_EVFLAGS_OBJ_MEM != 0)
&os_mpi_ef,
#else
NULL,
#endif
#if (OS_MUTEX_OBJ_MEM != 0)
&os_mpi_mutex,
#else
NULL,
#endif
#if (OS_SEMAPHORE_OBJ_MEM != 0)
&os_mpi_semaphore,
#else
NULL,
#endif
#if (OS_MEMPOOL_OBJ_MEM != 0)
&os_mpi_mp,
#else
NULL,
#endif
#if (OS_MSGQUEUE_OBJ_MEM != 0)
&os_mpi_mq,
#else
NULL,
#endif
},
(uint32_t)OS_STACK_SIZE,
&os_idle_thread_attr,
#if ((OS_TIMER_THREAD_STACK_SIZE != 0) && (OS_TIMER_CB_QUEUE != 0))
&os_timer_thread_attr,
&os_timer_mq_attr,
(uint32_t)OS_TIMER_CB_QUEUE
#else
NULL,
NULL,
0U
#endif
};
// Non weak reference to library irq module
// lint -esym(526,irqRtxLib) "Defined by Exception handlers"
// lint -esym(714,irqRtxLibRef) "Non weak reference"
// lint -esym(765,irqRtxLibRef) "Global scope"
extern uint8_t irqRtxLib;
extern const uint8_t *irqRtxLibRef;
const uint8_t *irqRtxLibRef = &irqRtxLib;
// Default User SVC Table
// lint -esym(714,osRtxUserSVC) "Referenced by Exception handlers"
// lint -esym(765,osRtxUserSVC) "Global scope"
// lint -e{9067} "extern array declared without size"
extern void *const osRtxUserSVC[];
__WEAK void *const osRtxUserSVC[1] = {(void *)0};
// OS Sections
// ===========
#if defined(__CC_ARM) || \
(defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
static uint32_t __os_thread_cb_start__ __attribute__((weakref(
".bss.os.thread.cb$$Base"))); // lint -esym(728,__os_thread_cb_start__)
static uint32_t __os_thread_cb_end__ __attribute__((weakref(
".bss.os.thread.cb$$Limit"))); // lint -esym(728,__os_thread_cb_end__)
static uint32_t __os_timer_cb_start__ __attribute__((weakref(
".bss.os.timer.cb$$Base"))); // lint -esym(728,__os_timer_cb_start__)
static uint32_t __os_timer_cb_end__ __attribute__((
weakref(".bss.os.timer.cb$$Limit"))); // lint -esym(728,__os_timer_cb_end__)
static uint32_t __os_evflags_cb_start__ __attribute__((weakref(
".bss.os.evflags.cb$$Base"))); // lint -esym(728,__os_evflags_cb_start__)
static uint32_t __os_evflags_cb_end__ __attribute__((weakref(
".bss.os.evflags.cb$$Limit"))); // lint -esym(728,__os_evflags_cb_end__)
static uint32_t __os_mutex_cb_start__ __attribute__((weakref(
".bss.os.mutex.cb$$Base"))); // lint -esym(728,__os_mutex_cb_start__)
static uint32_t __os_mutex_cb_end__ __attribute__((
weakref(".bss.os.mutex.cb$$Limit"))); // lint -esym(728,__os_mutex_cb_end__)
static uint32_t __os_semaphore_cb_start__ __attribute__((weakref(
".bss.os.semaphore.cb$$Base"))); // lint
// -esym(728,__os_semaphore_cb_start__)
static uint32_t __os_semaphore_cb_end__ __attribute__((weakref(
".bss.os.semaphore.cb$$Limit"))); // lint -esym(728,__os_semaphore_cb_end__)
static uint32_t __os_mempool_cb_start__ __attribute__((weakref(
".bss.os.mempool.cb$$Base"))); // lint -esym(728,__os_mempool_cb_start__)
static uint32_t __os_mempool_cb_end__ __attribute__((weakref(
".bss.os.mempool.cb$$Limit"))); // lint -esym(728,__os_mempool_cb_end__)
static uint32_t __os_msgqueue_cb_start__ __attribute__((weakref(
".bss.os.msgqueue.cb$$Base"))); // lint -esym(728,__os_msgqueue_cb_start__)
static uint32_t __os_msgqueue_cb_end__ __attribute__((weakref(
".bss.os.msgqueue.cb$$Limit"))); // lint -esym(728,__os_msgqueue_cb_end__)
#else
extern uint32_t __os_thread_cb_start__ __attribute__((weak));
extern uint32_t __os_thread_cb_end__ __attribute__((weak));
extern uint32_t __os_timer_cb_start__ __attribute__((weak));
extern uint32_t __os_timer_cb_end__ __attribute__((weak));
extern uint32_t __os_evflags_cb_start__ __attribute__((weak));
extern uint32_t __os_evflags_cb_end__ __attribute__((weak));
extern uint32_t __os_mutex_cb_start__ __attribute__((weak));
extern uint32_t __os_mutex_cb_end__ __attribute__((weak));
extern uint32_t __os_semaphore_cb_start__ __attribute__((weak));
extern uint32_t __os_semaphore_cb_end__ __attribute__((weak));
extern uint32_t __os_mempool_cb_start__ __attribute__((weak));
extern uint32_t __os_mempool_cb_end__ __attribute__((weak));
extern uint32_t __os_msgqueue_cb_start__ __attribute__((weak));
extern uint32_t __os_msgqueue_cb_end__ __attribute__((weak));
#endif
// lint -e{9067} "extern array declared without size"
extern const uint32_t *const os_cb_sections[];
// lint -esym(714,os_cb_sections) "Referenced by debugger"
// lint -esym(765,os_cb_sections) "Global scope"
const uint32_t *const os_cb_sections[] __USED
__attribute__((section(".rodata"))) = {
&__os_thread_cb_start__, &__os_thread_cb_end__,
&__os_timer_cb_start__, &__os_timer_cb_end__,
&__os_evflags_cb_start__, &__os_evflags_cb_end__,
&__os_mutex_cb_start__, &__os_mutex_cb_end__,
&__os_semaphore_cb_start__, &__os_semaphore_cb_end__,
&__os_mempool_cb_start__, &__os_mempool_cb_end__,
&__os_msgqueue_cb_start__, &__os_msgqueue_cb_end__};
// OS Initialization
// =================
#if defined(__CC_ARM) || \
(defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
#ifndef __MICROLIB
// lint -esym(714,_platform_post_stackheap_init) "Referenced by C library"
// lint -esym(765,_platform_post_stackheap_init) "Global scope"
extern void _platform_post_stackheap_init(void);
__WEAK void _platform_post_stackheap_init(void) { (void)osKernelInitialize(); }
#endif
#elif defined(__GNUC__)
osThreadAttr_t os_thread_attr_main = {"main", osThreadDetached, NULL, 0, NULL,
0, osPriorityNormal, 0, 0};
#ifndef OS_SCHEDULERSTKSIZE
#define OS_SCHEDULERSTKSIZE 512
#endif
extern uint32_t __StackTop[];
#define INITIAL_SP ((uint32_t)__StackTop)
extern uint32_t __StackLimit[];
#define MAIN_STACK_BUF (__StackLimit)
#define ROUND_UP(x, align) (((uint32_t)(x) + (align - 1)) & ~(align - 1))
#define ROUND_DOWN(x, align) ((uint32_t)(x) & ~(align - 1))
void set_main_stack(void) {
// That is the bottom of the main stack block: no collision detection
os_thread_attr_main.stack_mem = (uint32_t *)ROUND_UP(MAIN_STACK_BUF, 8);
// Leave OS_SCHEDULERSTKSIZE words for the scheduler and interrupts
os_thread_attr_main.stack_size =
ROUND_DOWN((INITIAL_SP - (unsigned int)ROUND_UP(MAIN_STACK_BUF, 8)) -
(OS_SCHEDULERSTKSIZE * 4),
8);
}
extern void software_init_hook(void);
__WEAK void software_init_hook(void) {
__asm(".syntax unified\n"
".thumb\n"
"movs r0,#0\n"
"movs r1,#0\n"
"mov r4,r0\n"
"mov r5,r1\n"
"bl SystemCoreClockUpdate\n"
"bl osKernelInitialize\n"
"ldr r0,= __libc_fini_array\n"
"bl atexit\n"
"bl __libc_init_array\n"
"mov r0,r4\n"
"mov r1,r5\n"
"bl set_main_stack\n"
"ldr r0,=main\n"
"movs r1,#0\n"
"ldr r2,=os_thread_attr_main\n"
"bl osThreadNew\n"
"bl osKernelStart\n"
"bl exit\n");
}
#endif
// OS Hooks
// ========
// RTOS Kernel Pre-Initialization Hook
#if (defined(OS_EVR_INIT) && (OS_EVR_INIT != 0))
void osRtxKernelPreInit(void);
void osRtxKernelPreInit(void) {
if (osKernelGetState() == osKernelInactive) {
evr_initialize();
}
}
#endif
// C/C++ Standard Library Multithreading Interface
// ===============================================
#if (!defined(RTX_NO_MULTITHREAD_CLIB) && \
(defined(__CC_ARM) || \
(defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))) && \
!defined(__MICROLIB))
#define LIBSPACE_SIZE 96
// lint -esym(714,__user_perthread_libspace,_mutex_*) "Referenced by C library"
// lint -esym(765,__user_perthread_libspace,_mutex_*) "Global scope"
// lint -esym(9003, os_libspace*) "variables 'os_libspace*' defined at module
// scope"
// Memory for libspace
static uint32_t os_libspace[OS_THREAD_LIBSPACE_NUM + 1][LIBSPACE_SIZE / 4]
__attribute__((section(".bss.os.libspace")));
// Thread IDs for libspace
static osThreadId_t os_libspace_id[OS_THREAD_LIBSPACE_NUM]
__attribute__((section(".bss.os.libspace")));
// Check if Kernel has been started
static uint32_t os_kernel_is_active(void) {
static uint8_t os_kernel_active = 0U;
if (os_kernel_active == 0U) {
if (osKernelGetState() > osKernelReady) {
os_kernel_active = 1U;
}
}
return (uint32_t)os_kernel_active;
}
// Provide libspace for current thread
void *__user_perthread_libspace(void);
void *__user_perthread_libspace(void) {
osThreadId_t id;
uint32_t n;
if (os_kernel_is_active() != 0U) {
id = osThreadGetId();
for (n = 0U; n < (uint32_t)OS_THREAD_LIBSPACE_NUM; n++) {
if (os_libspace_id[n] == NULL) {
os_libspace_id[n] = id;
}
if (os_libspace_id[n] == id) {
break;
}
}
if (n == (uint32_t)OS_THREAD_LIBSPACE_NUM) {
(void)osRtxErrorNotify(osRtxErrorClibSpace, id);
}
} else {
n = OS_THREAD_LIBSPACE_NUM;
}
// lint -e{9087} "cast between pointers to different object types"
return (void *)&os_libspace[n][0];
}
// Mutex identifier
typedef void *mutex;
// lint -save "Function prototypes defined in C library"
// lint -e970 "Use of 'int' outside of a typedef"
// lint -e818 "Pointer 'm' could be declared as pointing to const"
// Initialize mutex
__USED
int _mutex_initialize(mutex *m);
int _mutex_initialize(mutex *m) {
int result;
*m = osMutexNew(NULL);
if (*m != NULL) {
result = 1;
} else {
result = 0;
(void)osRtxErrorNotify(osRtxErrorClibMutex, m);
}
return result;
}
// Acquire mutex
__USED
void _mutex_acquire(mutex *m);
void _mutex_acquire(mutex *m) {
if (os_kernel_is_active() != 0U) {
(void)osMutexAcquire(*m, osWaitForever);
}
}
// Release mutex
__USED
void _mutex_release(mutex *m);
void _mutex_release(mutex *m) {
if (os_kernel_is_active() != 0U) {
(void)osMutexRelease(*m);
}
}
// Free mutex
__USED
void _mutex_free(mutex *m);
void _mutex_free(mutex *m) { (void)osMutexDelete(*m); }
// lint -restore
#endif
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