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https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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76be28cdc6
Earlier the System Call entry from an unprivileged task
looked like:
1. SVC for entering system call.
2. System call implementation.
3. SVC for exiting system call.
Now, the system call entry needs to make only one SVC
call and everything else is handled internally.
This PR also makes the following changes:
1. Update the Access Control List (ACL) mechanism to
grant access to all the kernel objects before the
scheduler is started.
2. Add one struct param for system calls with 5 parameters.
This removes the need for special handling for system
calls with 5 parameters.
3. Remove raise privilege SVC when MPU wrapper v2 is used.
4. Add additional run time parameter checks to MPU wrappers
for xTaskGenericNotify and xQueueTakeMutexRecursive APIs.
106 lines
5.7 KiB
C
106 lines
5.7 KiB
C
/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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#ifndef MPU_SYSCALL_NUMBERS_H
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#define MPU_SYSCALL_NUMBERS_H
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/* Numbers assigned to various system calls. */
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#define SYSTEM_CALL_xTaskGenericNotify 0
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#define SYSTEM_CALL_xTaskGenericNotifyWait 1
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#define SYSTEM_CALL_xTimerGenericCommandFromTask 2
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#define SYSTEM_CALL_xEventGroupWaitBits 3
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#define SYSTEM_CALL_xTaskDelayUntil 4
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#define SYSTEM_CALL_xTaskAbortDelay 5
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#define SYSTEM_CALL_vTaskDelay 6
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#define SYSTEM_CALL_uxTaskPriorityGet 7
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#define SYSTEM_CALL_eTaskGetState 8
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#define SYSTEM_CALL_vTaskGetInfo 9
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#define SYSTEM_CALL_xTaskGetIdleTaskHandle 10
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#define SYSTEM_CALL_vTaskSuspend 11
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#define SYSTEM_CALL_vTaskResume 12
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#define SYSTEM_CALL_xTaskGetTickCount 13
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#define SYSTEM_CALL_uxTaskGetNumberOfTasks 14
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#define SYSTEM_CALL_ulTaskGetRunTimeCounter 15
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#define SYSTEM_CALL_ulTaskGetRunTimePercent 16
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#define SYSTEM_CALL_ulTaskGetIdleRunTimePercent 17
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#define SYSTEM_CALL_ulTaskGetIdleRunTimeCounter 18
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#define SYSTEM_CALL_vTaskSetApplicationTaskTag 19
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#define SYSTEM_CALL_xTaskGetApplicationTaskTag 20
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#define SYSTEM_CALL_vTaskSetThreadLocalStoragePointer 21
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#define SYSTEM_CALL_pvTaskGetThreadLocalStoragePointer 22
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#define SYSTEM_CALL_uxTaskGetSystemState 23
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#define SYSTEM_CALL_uxTaskGetStackHighWaterMark 24
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#define SYSTEM_CALL_uxTaskGetStackHighWaterMark2 25
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#define SYSTEM_CALL_xTaskGetCurrentTaskHandle 26
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#define SYSTEM_CALL_xTaskGetSchedulerState 27
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#define SYSTEM_CALL_vTaskSetTimeOutState 28
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#define SYSTEM_CALL_xTaskCheckForTimeOut 29
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#define SYSTEM_CALL_ulTaskGenericNotifyTake 30
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#define SYSTEM_CALL_xTaskGenericNotifyStateClear 31
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#define SYSTEM_CALL_ulTaskGenericNotifyValueClear 32
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#define SYSTEM_CALL_xQueueGenericSend 33
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#define SYSTEM_CALL_uxQueueMessagesWaiting 34
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#define SYSTEM_CALL_uxQueueSpacesAvailable 35
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#define SYSTEM_CALL_xQueueReceive 36
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#define SYSTEM_CALL_xQueuePeek 37
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#define SYSTEM_CALL_xQueueSemaphoreTake 38
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#define SYSTEM_CALL_xQueueGetMutexHolder 39
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#define SYSTEM_CALL_xQueueTakeMutexRecursive 40
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#define SYSTEM_CALL_xQueueGiveMutexRecursive 41
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#define SYSTEM_CALL_xQueueSelectFromSet 42
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#define SYSTEM_CALL_xQueueAddToSet 43
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#define SYSTEM_CALL_vQueueAddToRegistry 44
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#define SYSTEM_CALL_vQueueUnregisterQueue 45
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#define SYSTEM_CALL_pcQueueGetName 46
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#define SYSTEM_CALL_pvTimerGetTimerID 47
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#define SYSTEM_CALL_vTimerSetTimerID 48
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#define SYSTEM_CALL_xTimerIsTimerActive 49
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#define SYSTEM_CALL_xTimerGetTimerDaemonTaskHandle 50
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#define SYSTEM_CALL_pcTimerGetName 51
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#define SYSTEM_CALL_vTimerSetReloadMode 52
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#define SYSTEM_CALL_xTimerGetReloadMode 53
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#define SYSTEM_CALL_uxTimerGetReloadMode 54
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#define SYSTEM_CALL_xTimerGetPeriod 55
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#define SYSTEM_CALL_xTimerGetExpiryTime 56
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#define SYSTEM_CALL_xEventGroupClearBits 57
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#define SYSTEM_CALL_xEventGroupSetBits 58
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#define SYSTEM_CALL_xEventGroupSync 59
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#define SYSTEM_CALL_uxEventGroupGetNumber 60
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#define SYSTEM_CALL_vEventGroupSetNumber 61
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#define SYSTEM_CALL_xStreamBufferSend 62
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#define SYSTEM_CALL_xStreamBufferReceive 63
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#define SYSTEM_CALL_xStreamBufferIsFull 64
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#define SYSTEM_CALL_xStreamBufferIsEmpty 65
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#define SYSTEM_CALL_xStreamBufferSpacesAvailable 66
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#define SYSTEM_CALL_xStreamBufferBytesAvailable 67
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#define SYSTEM_CALL_xStreamBufferSetTriggerLevel 68
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#define SYSTEM_CALL_xStreamBufferNextMessageLengthBytes 69
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#define NUM_SYSTEM_CALLS 70 /* Total number of system calls. */
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#endif /* MPU_SYSCALL_NUMBERS_H */
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