Release 6.1.12

This commit is contained in:
Yuxin Zhou
2022-07-26 02:04:40 +00:00
parent 54cda6ee9e
commit 8c3c08f108
217 changed files with 13398 additions and 13432 deletions

View File

@@ -26,7 +26,7 @@
/* PORT SPECIFIC C INFORMATION RELEASE */
/* */
/* tx_port.h Cortex-M23/AC6 */
/* 6.1.11 */
/* 6.1.12 */
/* */
/* AUTHOR */
/* */
@@ -51,6 +51,10 @@
/* 04-25-2022 Scott Larson Modified comments and added */
/* volatile to registers, */
/* resulting in version 6.1.11 */
/* 07-29-2022 Scott Larson Modified comments and changed */
/* secure stack initialization */
/* macro to port-specific, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
@@ -507,7 +511,7 @@ ULONG _tx_misra_ipsr_get(VOID);
#if !defined(TX_SINGLE_MODE_SECURE) && !defined(TX_SINGLE_MODE_NON_SECURE)
/* Initialize secure stacks for threads calling secure functions. */
extern void _tx_thread_secure_stack_initialize(void);
#define TX_INITIALIZE_KERNEL_ENTER_EXTENSION _tx_thread_secure_stack_initialize();
#define TX_PORT_SPECIFIC_PRE_INITIALIZATION _tx_thread_secure_stack_initialize();
#endif
/* Define the macro to ensure _tx_thread_preempt_disable is set early in initialization in order to
@@ -573,7 +577,7 @@ unsigned int was_masked;
#ifdef TX_THREAD_INIT
CHAR _tx_version_id[] =
"Copyright (c) Microsoft Corporation. All rights reserved. * ThreadX Cortex-M23/AC6 Version 6.1.11 *";
"Copyright (c) Microsoft Corporation. All rights reserved. * ThreadX Cortex-M23/AC6 Version 6.1.12 *";
#else
#ifdef TX_MISRA_ENABLE
extern CHAR _tx_version_id[100];

View File

@@ -26,7 +26,7 @@
/* APPLICATION INTERFACE DEFINITION RELEASE */
/* */
/* txm_module_port.h Cortex-M23/AC6 */
/* 6.1.10 */
/* 6.1.10 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */

View File

@@ -58,7 +58,7 @@ extern VOID _txm_module_initialize(VOID *heap_base, VOID *heap_top);
/* FUNCTION RELEASE */
/* */
/* _txm_module_thread_shell_entry Cortex-M23/AC6 */
/* 6.1.10 */
/* 6.1.10 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */

View File

@@ -30,7 +30,7 @@
/* FUNCTION RELEASE */
/* */
/* _tx_thread_schedule Cortex-M23/AC6 */
/* 6.1.11 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -65,6 +65,9 @@
/* 04-02-2021 Scott Larson Initial Version 6.1.6 */
/* 04-25-2022 Scott Larson Optimized MPU configuration, */
/* resulting in version 6.1.11 */
/* 07-29-2022 Scott Larson Removed the code path to skip */
/* MPU reloading, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
// VOID _tx_thread_schedule(VOID)
@@ -379,15 +382,6 @@ _skip_secure_restore:
LDR r2, [r0, r2] // Pickup MPU data region address
CBZ r2, skip_mpu_setup // Is protection required for this module? No, skip MPU setup
// Is the MPU already set up for this module?
MOVS r1, #2 // Select MPU region 2
LDR r3, =0xE000ED98 // MPU_RNR register address
STR r1, [r3] // Set region to 2
LDR r1, =0xE000ED9C // MPU_RBAR register address
LDR r3, [r1] // Load address stored in MPU region 2
CMP r2, r3 // Is module already loaded?
BEQ _tx_enable_mpu // Yes - skip MPU reconfiguration
// Initialize loop to configure MPU registers
MOVS r3, #0x64 // Index of MPU register settings in thread control block
ADD r0, r0, r3 // Build address of MPU register start in thread control block

View File

@@ -23,7 +23,7 @@
#include "tx_api.h"
/* If TX_SINGLE_MODE_SECURE or TX_SINGLE_MODE_NON_SECURE is defined,
/* If TX_SINGLE_MODE_SECURE or TX_SINGLE_MODE_NON_SECURE is defined,
no secure stack functionality is needed. */
#if !defined(TX_SINGLE_MODE_SECURE) && !defined(TX_SINGLE_MODE_NON_SECURE)
@@ -45,8 +45,14 @@
#define TX_THREAD_STACK_SEAL_SIZE 8
#define TX_THREAD_STACK_SEAL_VALUE 0xFEF5EDA5
/* Secure stack info struct to hold stack start, stack limit,
current stack pointer, and pointer to owning thread.
/* max number of Secure context */
#ifndef TX_MAX_SECURE_CONTEXTS
#define TX_MAX_SECURE_CONTEXTS 32
#endif
#define TX_INVALID_SECURE_CONTEXT_IDX (-1)
/* Secure stack info struct to hold stack start, stack limit,
current stack pointer, and pointer to owning thread.
This will be allocated for each thread with a secure stack. */
typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
{
@@ -54,8 +60,14 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
VOID *tx_thread_secure_stack_start; /* Thread's secure stack start address */
VOID *tx_thread_secure_stack_limit; /* Thread's secure stack limit */
TX_THREAD *tx_thread_ptr; /* Keep track of thread for error handling */
INT tx_next_free_index; /* Next free index of free secure context */
} TX_THREAD_SECURE_STACK_INFO;
/* Static secure contexts */
static TX_THREAD_SECURE_STACK_INFO tx_thread_secure_context[TX_MAX_SECURE_CONTEXTS];
/* Head of free secure context */
static INT tx_head_free_index = 0U;
/**************************************************************************/
@@ -63,7 +75,7 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_initialize Cortex-M23/AC6 */
/* 6.1.8 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -98,16 +110,20 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 10-16-2020 Scott Larson Modified comment(s), */
/* resulting in version 6.1.1 */
/* 08-02-2021 Scott Larson Modified comment(s), and */
/* 06-02-2021 Scott Larson Modified comment(s), and */
/* changed name, execute in */
/* handler mode, */
/* resulting in version 6.1.8 */
/* resulting in version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
UINT _tx_thread_secure_mode_stack_initialize(void)
{
UINT status;
INT index;
/* Make sure function is called from interrupt (threads should not call). */
if (__get_IPSR() == 0)
@@ -118,12 +134,26 @@ UINT status;
{
/* Set secure mode to use PSP. */
__set_CONTROL(__get_CONTROL() | 2);
/* Set process stack pointer and stack limit to 0 to throw exception when a thread
without a secure stack calls a secure function that tries to use secure stack. */
__set_PSPLIM(0);
__set_PSP(0);
for (index = 0; index < TX_MAX_SECURE_CONTEXTS; index++)
{
/* Check last index and mark next free to invalid index */
if(index == (TX_MAX_SECURE_CONTEXTS - 1))
{
tx_thread_secure_context[index].tx_next_free_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
else
{
tx_thread_secure_context[index].tx_next_free_index = index + 1;
}
}
status = TX_SUCCESS;
}
return status;
@@ -136,7 +166,7 @@ UINT status;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_allocate Cortex-M23/AC6 */
/* 6.1.1 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -160,9 +190,7 @@ UINT status;
/* CALLS */
/* */
/* __get_IPSR Intrinsic to get IPSR */
/* calloc Compiler's calloc function */
/* malloc Compiler's malloc function */
/* free Compiler's free() function */
/* __set_PSPLIM Intrinsic to set PSP limit */
/* __set_PSP Intrinsic to set PSP */
/* __TZ_get_PSPLIM_NS Intrinsic to get NS PSP */
@@ -179,18 +207,22 @@ UINT status;
/* 10-16-2020 Scott Larson Modified comment(s), */
/* added stack sealing, */
/* resulting in version 6.1.1 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
UINT _tx_thread_secure_mode_stack_allocate(TX_THREAD *thread_ptr, ULONG stack_size)
{
TX_INTERRUPT_SAVE_AREA
UINT status;
TX_THREAD_SECURE_STACK_INFO *info_ptr;
UCHAR *stack_mem;
ULONG sp;
INT secure_context_index;
status = TX_SUCCESS;
/* Make sure function is called from interrupt (threads should not call). */
if (__get_IPSR() == 0)
{
@@ -200,23 +232,38 @@ ULONG sp;
{
status = TX_SIZE_ERROR;
}
/* Check if thread already has secure stack allocated. */
else if (thread_ptr -> tx_thread_secure_stack_context != 0)
{
status = TX_THREAD_ERROR;
}
else
{
/* Allocate space for secure stack info. */
info_ptr = calloc(1, sizeof(TX_THREAD_SECURE_STACK_INFO));
if(info_ptr != TX_NULL)
TX_DISABLE
/* Allocate free index for secure stack info. */
if(tx_head_free_index != TX_INVALID_SECURE_CONTEXT_IDX)
{
secure_context_index = tx_head_free_index;
tx_head_free_index = tx_thread_secure_context[tx_head_free_index].tx_next_free_index;
tx_thread_secure_context[secure_context_index].tx_next_free_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
else
{
secure_context_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
TX_RESTORE
if(secure_context_index != TX_INVALID_SECURE_CONTEXT_IDX)
{
info_ptr = &tx_thread_secure_context[secure_context_index];
/* If stack info allocated, allocate a stack & seal. */
stack_mem = malloc(stack_size + TX_THREAD_STACK_SEAL_SIZE);
if(stack_mem != TX_NULL)
{
/* Secure stack has been allocated, save in the stack info struct. */
@@ -224,38 +271,41 @@ ULONG sp;
info_ptr -> tx_thread_secure_stack_start = stack_mem + stack_size;
info_ptr -> tx_thread_secure_stack_ptr = info_ptr -> tx_thread_secure_stack_start;
info_ptr -> tx_thread_ptr = thread_ptr;
/* Seal bottom of stack. */
*(ULONG*)info_ptr -> tx_thread_secure_stack_start = TX_THREAD_STACK_SEAL_VALUE;
/* Save info pointer in thread. */
thread_ptr -> tx_thread_secure_stack_context = info_ptr;
/* Check if this thread is running by looking at PSP_NS and seeing if it is within
the stack_start and stack_end range. */
sp = __TZ_get_PSP_NS();
if(sp > ((ULONG) thread_ptr -> tx_thread_stack_start) && sp < ((ULONG) thread_ptr -> tx_thread_stack_end))
/* Save secure context id (i.e non-zero base index) in thread. */
thread_ptr -> tx_thread_secure_stack_context = (VOID *)(secure_context_index + 1);
/* Check if this thread is running by looking at its stack start and PSPLIM_NS */
if(((ULONG) thread_ptr -> tx_thread_stack_start & 0xFFFFFFF8) == __TZ_get_PSPLIM_NS())
{
/* If this thread is running, set Secure PSP and PSPLIM. */
__set_PSPLIM((ULONG)(info_ptr -> tx_thread_secure_stack_limit));
__set_PSP((ULONG)(info_ptr -> tx_thread_secure_stack_ptr));
}
}
else
{
TX_DISABLE
/* Stack not allocated, free the info struct. */
free(info_ptr);
tx_thread_secure_context[secure_context_index].tx_next_free_index = tx_head_free_index;
tx_head_free_index = secure_context_index;
TX_RESTORE
status = TX_NO_MEMORY;
}
}
else
{
status = TX_NO_MEMORY;
}
}
return(status);
}
@@ -266,7 +316,7 @@ ULONG sp;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_free Cortex-M23/AC6 */
/* 6.1.1 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -301,44 +351,65 @@ ULONG sp;
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 10-16-2020 Scott Larson Modified comment(s), */
/* resulting in version 6.1.1 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
UINT _tx_thread_secure_mode_stack_free(TX_THREAD *thread_ptr)
{
TX_INTERRUPT_SAVE_AREA
UINT status;
TX_THREAD_SECURE_STACK_INFO *info_ptr;
INT secure_context_index;
status = TX_SUCCESS;
/* Pickup stack info from thread. */
info_ptr = thread_ptr -> tx_thread_secure_stack_context;
/* Pickup stack info id from thread. */
secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* Make sure function is called from interrupt (threads should not call). */
if (__get_IPSR() == 0)
{
status = TX_CALLER_ERROR;
}
/* Check that this secure context is for this thread. */
else if (info_ptr -> tx_thread_ptr != thread_ptr)
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
status = TX_THREAD_ERROR;
}
else
{
/* Free secure stack. */
free(info_ptr -> tx_thread_secure_stack_limit);
/* Free info struct. */
free(info_ptr);
/* Clear secure context from thread. */
thread_ptr -> tx_thread_secure_stack_context = 0;
/* Pickup stack info from static array of secure contexts. */
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
status = TX_THREAD_ERROR;
}
else
{
/* Free secure stack. */
free(info_ptr -> tx_thread_secure_stack_limit);
TX_DISABLE
/* Free info struct. */
tx_thread_secure_context[secure_context_index].tx_next_free_index = tx_head_free_index;
tx_head_free_index = secure_context_index;
TX_RESTORE
/* Clear secure context from thread. */
thread_ptr -> tx_thread_secure_stack_context = 0;
}
}
return(status);
}
@@ -349,7 +420,7 @@ TX_THREAD_SECURE_STACK_INFO *info_ptr;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_stack_context_save Cortex-M23/AC6 */
/* 6.1.7 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -386,6 +457,9 @@ TX_THREAD_SECURE_STACK_INFO *info_ptr;
/* resulting in version 6.1.1 */
/* 06-02-2021 Scott Larson Fix stack pointer save, */
/* resulting in version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
@@ -393,38 +467,45 @@ void _tx_thread_secure_stack_context_save(TX_THREAD *thread_ptr)
{
TX_THREAD_SECURE_STACK_INFO *info_ptr;
ULONG sp;
INT secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* This function should be called from scheduler only. */
if (__get_IPSR() == 0)
{
return;
}
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
return;
}
/* Pickup the secure context pointer. */
info_ptr = (TX_THREAD_SECURE_STACK_INFO *)(thread_ptr -> tx_thread_secure_stack_context);
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
return;
}
/* Check that stack pointer is in range */
sp = __get_PSP();
if ((sp < (ULONG)info_ptr -> tx_thread_secure_stack_limit) ||
if ((sp < (ULONG)info_ptr -> tx_thread_secure_stack_limit) ||
(sp > (ULONG)info_ptr -> tx_thread_secure_stack_start))
{
return;
}
/* Save stack pointer. */
info_ptr -> tx_thread_secure_stack_ptr = (VOID *) sp;
/* Set process stack pointer and stack limit to 0 to throw exception when a thread
without a secure stack calls a secure function that tries to use secure stack. */
__set_PSPLIM(0);
__set_PSP(0);
return;
}
@@ -435,7 +516,7 @@ ULONG sp;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_stack_context_restore Cortex-M23/AC6 */
/* 6.1.1 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -469,32 +550,42 @@ ULONG sp;
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 10-16-2020 Scott Larson Modified comment(s), */
/* resulting in version 6.1.1 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
void _tx_thread_secure_stack_context_restore(TX_THREAD *thread_ptr)
{
TX_THREAD_SECURE_STACK_INFO *info_ptr;
INT secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* This function should be called from scheduler only. */
if (__get_IPSR() == 0)
{
return;
}
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
return;
}
/* Pickup the secure context pointer. */
info_ptr = (TX_THREAD_SECURE_STACK_INFO *)(thread_ptr -> tx_thread_secure_stack_context);
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
return;
}
/* Set stack pointer and limit. */
__set_PSPLIM((ULONG)info_ptr -> tx_thread_secure_stack_limit);
__set_PSP ((ULONG)info_ptr -> tx_thread_secure_stack_ptr);
return;
}

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@@ -26,7 +26,7 @@
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_stack_initialize Cortex-M23/AC6 */
/* 6.1.8 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -49,13 +49,17 @@
/* */
/* CALLED BY */
/* */
/* TX_INITIALIZE_KERNEL_ENTER_EXTENSION */
/* TX_PORT_SPECIFIC_PRE_INITIALIZATION */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 08-02-2021 Scott Larson Initial Version 6.1.8 */
/* 06-02-2021 Scott Larson Initial Version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments and changed */
/* secure stack initialization */
/* macro to port-specific, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
// VOID _tx_thread_secure_stack_initialize(VOID)

View File

@@ -1,93 +0,0 @@
/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Thread */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_thread.h"
/* Define the global function pointer for stack error handling. If a stack error is
detected and the application has registered a stack error handler, it will be
called via this function pointer. */
VOID (*_tx_thread_application_stack_error_handler)(TX_THREAD *thread_ptr);
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_thread_stack_error_handler Cortex-M23 */
/* 6.1 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function processes stack errors detected during run-time. */
/* */
/* */
/* INPUT */
/* */
/* thread_ptr Thread control block pointer */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _tx_thread_terminate */
/* _tx_thread_application_stack_error_handler */
/* */
/* CALLED BY */
/* */
/* ThreadX internal code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* */
/**************************************************************************/
VOID _tx_thread_stack_error_handler(TX_THREAD *thread_ptr)
{
#ifndef TX_THREAD_NO_TERMINATE_STACK_ERROR
/* Is there a thread? */
if (thread_ptr)
{
/* Terminate the current thread. */
_tx_thread_terminate(_tx_thread_current_ptr);
}
#endif
/* Determine if the application has registered an error handler. */
if (_tx_thread_application_stack_error_handler != TX_NULL)
{
/* Yes, an error handler is present, simply call the application error handler. */
(_tx_thread_application_stack_error_handler)(thread_ptr);
}
}

View File

@@ -26,7 +26,7 @@
/* PORT SPECIFIC C INFORMATION RELEASE */
/* */
/* tx_port.h Cortex-M23/GNU */
/* 6.1.11 */
/* 6.1.12 */
/* */
/* AUTHOR */
/* */
@@ -61,6 +61,10 @@
/* 04-25-2022 Scott Larson Modified comments and added */
/* volatile to registers, */
/* resulting in version 6.1.11 */
/* 07-29-2022 Scott Larson Modified comments and changed */
/* secure stack initialization */
/* macro to port-specific, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
@@ -385,7 +389,7 @@ ULONG _tx_misra_ipsr_get(VOID);
#if !defined(TX_SINGLE_MODE_SECURE) && !defined(TX_SINGLE_MODE_NON_SECURE)
/* Initialize secure stacks for threads calling secure functions. */
extern void _tx_thread_secure_stack_initialize(void);
#define TX_INITIALIZE_KERNEL_ENTER_EXTENSION _tx_thread_secure_stack_initialize();
#define TX_PORT_SPECIFIC_PRE_INITIALIZATION _tx_thread_secure_stack_initialize();
#endif
/* Define the macro to ensure _tx_thread_preempt_disable is set early in initialization in order to
@@ -484,7 +488,7 @@ unsigned int interrupt_save;
#ifdef TX_THREAD_INIT
CHAR _tx_version_id[] =
"Copyright (c) Microsoft Corporation. All rights reserved. * ThreadX Cortex-M23/GNU Version 6.1.11 *";
"Copyright (c) Microsoft Corporation. All rights reserved. * ThreadX Cortex-M23/GNU Version 6.1.12 *";
#else
#ifdef TX_MISRA_ENABLE
extern CHAR _tx_version_id[100];

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@@ -26,7 +26,7 @@
/* FUNCTION RELEASE */
/* */
/* _tx_thread_schedule Cortex-M23/GNU */
/* 6.1.11 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -61,6 +61,9 @@
/* 04-02-2021 Scott Larson Initial Version 6.1.6 */
/* 04-25-2022 Scott Larson Optimized MPU configuration, */
/* resulting in version 6.1.11 */
/* 07-29-2022 Scott Larson Removed the code path to skip */
/* MPU reloading, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
// VOID _tx_thread_schedule(VOID)
@@ -375,15 +378,6 @@ _skip_secure_restore:
LDR r2, [r0, r2] // Pickup MPU data region address
CBZ r2, skip_mpu_setup // Is protection required for this module? No, skip MPU setup
// Is the MPU already set up for this module?
MOVS r1, #2 // Select MPU region 2
LDR r3, =0xE000ED98 // MPU_RNR register address
STR r1, [r3] // Set region to 2
LDR r1, =0xE000ED9C // MPU_RBAR register address
LDR r3, [r1] // Load address stored in MPU region 2
CMP r2, r3 // Is module already loaded?
BEQ _tx_enable_mpu // Yes - skip MPU reconfiguration
// Initialize loop to configure MPU registers
MOVS r3, #0x64 // Index of MPU register settings in thread control block
ADD r0, r0, r3 // Build address of MPU register start in thread control block

View File

@@ -23,7 +23,7 @@
#include "tx_api.h"
/* If TX_SINGLE_MODE_SECURE or TX_SINGLE_MODE_NON_SECURE is defined,
/* If TX_SINGLE_MODE_SECURE or TX_SINGLE_MODE_NON_SECURE is defined,
no secure stack functionality is needed. */
#if !defined(TX_SINGLE_MODE_SECURE) && !defined(TX_SINGLE_MODE_NON_SECURE)
@@ -44,8 +44,14 @@
#define TX_THREAD_STACK_SEAL_SIZE 8
#define TX_THREAD_STACK_SEAL_VALUE 0xFEF5EDA5
/* Secure stack info struct to hold stack start, stack limit,
current stack pointer, and pointer to owning thread.
/* max number of Secure context */
#ifndef TX_MAX_SECURE_CONTEXTS
#define TX_MAX_SECURE_CONTEXTS 32
#endif
#define TX_INVALID_SECURE_CONTEXT_IDX (-1)
/* Secure stack info struct to hold stack start, stack limit,
current stack pointer, and pointer to owning thread.
This will be allocated for each thread with a secure stack. */
typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
{
@@ -53,8 +59,14 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
VOID *tx_thread_secure_stack_start; /* Thread's secure stack start address */
VOID *tx_thread_secure_stack_limit; /* Thread's secure stack limit */
TX_THREAD *tx_thread_ptr; /* Keep track of thread for error handling */
INT tx_next_free_index; /* Next free index of free secure context */
} TX_THREAD_SECURE_STACK_INFO;
/* Static secure contexts */
static TX_THREAD_SECURE_STACK_INFO tx_thread_secure_context[TX_MAX_SECURE_CONTEXTS];
/* Head of free secure context */
static INT tx_head_free_index = 0U;
/**************************************************************************/
@@ -62,7 +74,7 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_initialize Cortex-M23/GNU */
/* 6.1.8 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -94,10 +106,13 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 10-16-2020 Scott Larson Modified comment(s), */
/* resulting in version 6.1.1 */
/* 08-02-2021 Scott Larson Modified comment(s), changed */
/* 06-02-2021 Scott Larson Modified comment(s), changed */
/* name, execute in handler */
/* mode, disable optimization, */
/* resulting in version 6.1.8 */
/* resulting in version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry, optimize(0)))
@@ -106,6 +121,7 @@ UINT _tx_thread_secure_mode_stack_initialize(void)
UINT status;
ULONG control;
ULONG ipsr;
INT index;
/* Make sure function is called from interrupt (threads should not call). */
asm volatile("MRS %0, IPSR" : "=r" (ipsr)); /* Get IPSR register. */
@@ -119,12 +135,26 @@ ULONG ipsr;
asm volatile("MRS %0, CONTROL" : "=r" (control)); /* Get CONTROL register. */
control |= 2; /* Use PSP. */
asm volatile("MSR CONTROL, %0" :: "r" (control)); /* Set CONTROL register. */
/* Set process stack pointer and stack limit to 0 to throw exception when a thread
without a secure stack calls a secure function that tries to use secure stack. */
asm volatile("MSR PSPLIM, %0" :: "r" (0));
asm volatile("MSR PSP, %0" :: "r" (0));
for (index = 0; index < TX_MAX_SECURE_CONTEXTS; index++)
{
/* Check last index and mark next free to invalid index */
if(index == (TX_MAX_SECURE_CONTEXTS - 1))
{
tx_thread_secure_context[index].tx_next_free_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
else
{
tx_thread_secure_context[index].tx_next_free_index = index + 1;
}
}
status = TX_SUCCESS;
}
return status;
@@ -137,7 +167,7 @@ ULONG ipsr;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_allocate Cortex-M23/GNU */
/* 6.1.3 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -160,9 +190,7 @@ ULONG ipsr;
/* */
/* CALLS */
/* */
/* calloc Compiler's calloc function */
/* malloc Compiler's malloc function */
/* free Compiler's free() function */
/* */
/* CALLED BY */
/* */
@@ -179,20 +207,26 @@ ULONG ipsr;
/* 12-31-2020 Scott Larson Modified comment(s), and */
/* fixed M23 GCC build, */
/* resulting in version 6.1.3 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* added */
/* TX_INTERRUPT_SAVE_AREA, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
UINT _tx_thread_secure_mode_stack_allocate(TX_THREAD *thread_ptr, ULONG stack_size)
{
TX_INTERRUPT_SAVE_AREA
UINT status;
TX_THREAD_SECURE_STACK_INFO *info_ptr;
UCHAR *stack_mem;
ULONG ipsr;
ULONG psplim_ns;
INT secure_context_index;
status = TX_SUCCESS;
/* Make sure function is called from interrupt (threads should not call). */
asm volatile("MRS %0, IPSR" : "=r" (ipsr)); /* Get IPSR register. */
if (ipsr == 0)
@@ -203,23 +237,38 @@ ULONG psplim_ns;
{
status = TX_SIZE_ERROR;
}
/* Check if thread already has secure stack allocated. */
else if (thread_ptr -> tx_thread_secure_stack_context != 0)
{
status = TX_THREAD_ERROR;
}
else
{
/* Allocate space for secure stack info. */
info_ptr = calloc(1, sizeof(TX_THREAD_SECURE_STACK_INFO));
if(info_ptr != TX_NULL)
TX_DISABLE
/* Allocate free index for secure stack info. */
if(tx_head_free_index != TX_INVALID_SECURE_CONTEXT_IDX)
{
secure_context_index = tx_head_free_index;
tx_head_free_index = tx_thread_secure_context[tx_head_free_index].tx_next_free_index;
tx_thread_secure_context[secure_context_index].tx_next_free_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
else
{
secure_context_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
TX_RESTORE
if(secure_context_index != TX_INVALID_SECURE_CONTEXT_IDX)
{
info_ptr = &tx_thread_secure_context[secure_context_index];
/* If stack info allocated, allocate a stack & seal. */
stack_mem = malloc(stack_size + TX_THREAD_STACK_SEAL_SIZE);
if(stack_mem != TX_NULL)
{
/* Secure stack has been allocated, save in the stack info struct. */
@@ -227,13 +276,13 @@ ULONG psplim_ns;
info_ptr -> tx_thread_secure_stack_start = stack_mem + stack_size;
info_ptr -> tx_thread_secure_stack_ptr = info_ptr -> tx_thread_secure_stack_start;
info_ptr -> tx_thread_ptr = thread_ptr;
/* Seal bottom of stack. */
*(ULONG*)info_ptr -> tx_thread_secure_stack_start = TX_THREAD_STACK_SEAL_VALUE;
/* Save info pointer in thread. */
thread_ptr -> tx_thread_secure_stack_context = info_ptr;
/* Save secure context id (i.e non-zero base index) in thread. */
thread_ptr -> tx_thread_secure_stack_context = (VOID *)(secure_context_index + 1);
/* Check if this thread is running by looking at its stack start and PSPLIM_NS */
asm volatile("MRS %0, PSPLIM_NS" : "=r" (psplim_ns)); /* Get PSPLIM_NS register. */
if(((ULONG) thread_ptr -> tx_thread_stack_start & 0xFFFFFFF8) == psplim_ns)
@@ -243,21 +292,26 @@ ULONG psplim_ns;
asm volatile("MSR PSP, %0" :: "r" ((ULONG)(info_ptr -> tx_thread_secure_stack_ptr)));
}
}
else
{
TX_DISABLE
/* Stack not allocated, free the info struct. */
free(info_ptr);
tx_thread_secure_context[secure_context_index].tx_next_free_index = tx_head_free_index;
tx_head_free_index = secure_context_index;
TX_RESTORE
status = TX_NO_MEMORY;
}
}
else
{
status = TX_NO_MEMORY;
}
}
return(status);
}
@@ -268,7 +322,7 @@ ULONG psplim_ns;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_free Cortex-M23/GNU */
/* 6.1.3 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -305,46 +359,67 @@ ULONG psplim_ns;
/* 12-31-2020 Scott Larson Modified comment(s), and */
/* fixed M23 GCC build, */
/* resulting in version 6.1.3 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
UINT _tx_thread_secure_mode_stack_free(TX_THREAD *thread_ptr)
{
TX_INTERRUPT_SAVE_AREA
UINT status;
TX_THREAD_SECURE_STACK_INFO *info_ptr;
ULONG ipsr;
INT secure_context_index;
status = TX_SUCCESS;
/* Pickup stack info from thread. */
info_ptr = thread_ptr -> tx_thread_secure_stack_context;
/* Pickup stack info id from thread. */
secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* Make sure function is called from interrupt (threads should not call). */
asm volatile("MRS %0, IPSR" : "=r" (ipsr)); /* Get IPSR register. */
if (ipsr == 0)
{
status = TX_CALLER_ERROR;
}
/* Check that this secure context is for this thread. */
else if (info_ptr -> tx_thread_ptr != thread_ptr)
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
status = TX_THREAD_ERROR;
}
else
{
/* Free secure stack. */
free(info_ptr -> tx_thread_secure_stack_limit);
/* Free info struct. */
free(info_ptr);
/* Clear secure context from thread. */
thread_ptr -> tx_thread_secure_stack_context = 0;
/* Pickup stack info from static array of secure contexts. */
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
status = TX_THREAD_ERROR;
}
else
{
/* Free secure stack. */
free(info_ptr -> tx_thread_secure_stack_limit);
TX_DISABLE
/* Free info struct. */
tx_thread_secure_context[secure_context_index].tx_next_free_index = tx_head_free_index;
tx_head_free_index = secure_context_index;
TX_RESTORE
/* Clear secure context from thread. */
thread_ptr -> tx_thread_secure_stack_context = 0;
}
}
return(status);
}
@@ -355,7 +430,7 @@ ULONG ipsr;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_stack_context_save Cortex-M23/GNU */
/* 6.1.7 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -392,6 +467,9 @@ ULONG ipsr;
/* resulting in version 6.1.3 */
/* 06-02-2021 Scott Larson Fix stack pointer save, */
/* resulting in version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
@@ -400,6 +478,7 @@ void _tx_thread_secure_stack_context_save(TX_THREAD *thread_ptr)
TX_THREAD_SECURE_STACK_INFO *info_ptr;
ULONG sp;
ULONG ipsr;
INT secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* This function should be called from scheduler only. */
asm volatile("MRS %0, IPSR" : "=r" (ipsr)); /* Get IPSR register. */
@@ -407,32 +486,38 @@ ULONG ipsr;
{
return;
}
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
return;
}
/* Pickup the secure context pointer. */
info_ptr = (TX_THREAD_SECURE_STACK_INFO *)(thread_ptr -> tx_thread_secure_stack_context);
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
return;
}
/* Check that stack pointer is in range */
asm volatile("MRS %0, PSP" : "=r" (sp)); /* Get PSP register. */
if ((sp < (ULONG)info_ptr -> tx_thread_secure_stack_limit) ||
if ((sp < (ULONG)info_ptr -> tx_thread_secure_stack_limit) ||
(sp > (ULONG)info_ptr -> tx_thread_secure_stack_start))
{
return;
}
/* Save stack pointer. */
info_ptr -> tx_thread_secure_stack_ptr = (VOID *) sp;
/* Set process stack pointer and stack limit to 0 to throw exception when a thread
without a secure stack calls a secure function that tries to use secure stack. */
asm volatile("MSR PSPLIM, %0" :: "r" (0));
asm volatile("MSR PSP, %0" :: "r" (0));
return;
}
@@ -443,7 +528,7 @@ ULONG ipsr;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_stack_context_restore Cortex-M23/GNU */
/* 6.1.3 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -478,6 +563,9 @@ ULONG ipsr;
/* 12-31-2020 Scott Larson Modified comment(s), and */
/* fixed M23 GCC build, */
/* resulting in version 6.1.3 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
@@ -485,6 +573,7 @@ void _tx_thread_secure_stack_context_restore(TX_THREAD *thread_ptr)
{
TX_THREAD_SECURE_STACK_INFO *info_ptr;
ULONG ipsr;
INT secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* This function should be called from scheduler only. */
asm volatile("MRS %0, IPSR" : "=r" (ipsr)); /* Get IPSR register. */
@@ -492,20 +581,26 @@ ULONG ipsr;
{
return;
}
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
return;
}
/* Pickup the secure context pointer. */
info_ptr = (TX_THREAD_SECURE_STACK_INFO *)(thread_ptr -> tx_thread_secure_stack_context);
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
return;
}
/* Set stack pointer and limit. */
asm volatile("MSR PSPLIM, %0" :: "r" ((ULONG)info_ptr -> tx_thread_secure_stack_limit));
asm volatile("MSR PSP, %0" :: "r" ((ULONG)info_ptr -> tx_thread_secure_stack_ptr));
return;
}

View File

@@ -20,77 +20,64 @@
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_thread.h"
#include "tx_trace.h"
extern VOID (*_tx_thread_application_stack_error_handler)(TX_THREAD *thread_ptr);
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_thread_stack_error_notify Cortex-M23 */
/* 6.1 */
/* _tx_thread_secure_stack_initialize Cortex-M23/GNU */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function registers an application stack error handler. If */
/* ThreadX detects a stack error, this application handler is called. */
/* */
/* This function enters the SVC handler to initialize a secure stack. */
/* */
/* INPUT */
/* */
/* stack_error_handler Pointer to stack error */
/* handler, TX_NULL to disable */
/* none */
/* */
/* OUTPUT */
/* */
/* status Service return status */
/* none */
/* */
/* CALLS */
/* */
/* None */
/* SVC 3 */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* TX_PORT_SPECIFIC_PRE_INITIALIZATION */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 06-02-2021 Scott Larson Initial Version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments and changed */
/* secure stack initialization */
/* macro to port-specific, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
UINT _tx_thread_stack_error_notify(VOID (*stack_error_handler)(TX_THREAD *thread_ptr))
{
TX_INTERRUPT_SAVE_AREA
/* Disable interrupts. */
TX_DISABLE
/* Make entry in event log. */
TX_TRACE_IN_LINE_INSERT(TX_TRACE_THREAD_STACK_ERROR_NOTIFY, 0, 0, 0, 0, TX_TRACE_THREAD_EVENTS)
/* Make entry in event log. */
TX_EL_THREAD_STACK_ERROR_NOTIFY_INSERT
/* Setup global thread stack error handler. */
_tx_thread_application_stack_error_handler = stack_error_handler;
/* Restore interrupts. */
TX_RESTORE
/* Return success to caller. */
return(TX_SUCCESS);
}
// VOID _tx_thread_secure_stack_initialize(VOID)
// {
.section .text
.balign 4
.syntax unified
.eabi_attribute Tag_ABI_align_preserved, 1
.global _tx_thread_secure_stack_initialize
.thumb_func
.type _tx_thread_secure_stack_initialize, function
_tx_thread_secure_stack_initialize:
#if !defined(TX_SINGLE_MODE_SECURE) && !defined(TX_SINGLE_MODE_NON_SECURE)
CPSIE i // Enable interrupts for SVC call
SVC 3
CPSID i // Disable interrupts
#else
MOV r0, #0xFF // Feature not enabled
#endif
BX lr
.end

View File

@@ -1,93 +0,0 @@
/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Thread */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_thread.h"
/* Define the global function pointer for stack error handling. If a stack error is
detected and the application has registered a stack error handler, it will be
called via this function pointer. */
VOID (*_tx_thread_application_stack_error_handler)(TX_THREAD *thread_ptr);
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_thread_stack_error_handler Cortex-M23 */
/* 6.1 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function processes stack errors detected during run-time. */
/* */
/* */
/* INPUT */
/* */
/* thread_ptr Thread control block pointer */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _tx_thread_terminate */
/* _tx_thread_application_stack_error_handler */
/* */
/* CALLED BY */
/* */
/* ThreadX internal code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* */
/**************************************************************************/
VOID _tx_thread_stack_error_handler(TX_THREAD *thread_ptr)
{
#ifndef TX_THREAD_NO_TERMINATE_STACK_ERROR
/* Is there a thread? */
if (thread_ptr)
{
/* Terminate the current thread. */
_tx_thread_terminate(_tx_thread_current_ptr);
}
#endif
/* Determine if the application has registered an error handler. */
if (_tx_thread_application_stack_error_handler != TX_NULL)
{
/* Yes, an error handler is present, simply call the application error handler. */
(_tx_thread_application_stack_error_handler)(thread_ptr);
}
}

View File

@@ -1,96 +0,0 @@
/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Thread */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_thread.h"
#include "tx_trace.h"
extern VOID (*_tx_thread_application_stack_error_handler)(TX_THREAD *thread_ptr);
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_thread_stack_error_notify Cortex-M23 */
/* 6.1 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function registers an application stack error handler. If */
/* ThreadX detects a stack error, this application handler is called. */
/* */
/* */
/* INPUT */
/* */
/* stack_error_handler Pointer to stack error */
/* handler, TX_NULL to disable */
/* */
/* OUTPUT */
/* */
/* status Service return status */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* */
/**************************************************************************/
UINT _tx_thread_stack_error_notify(VOID (*stack_error_handler)(TX_THREAD *thread_ptr))
{
TX_INTERRUPT_SAVE_AREA
/* Disable interrupts. */
TX_DISABLE
/* Make entry in event log. */
TX_TRACE_IN_LINE_INSERT(TX_TRACE_THREAD_STACK_ERROR_NOTIFY, 0, 0, 0, 0, TX_TRACE_THREAD_EVENTS)
/* Make entry in event log. */
TX_EL_THREAD_STACK_ERROR_NOTIFY_INSERT
/* Setup global thread stack error handler. */
_tx_thread_application_stack_error_handler = stack_error_handler;
/* Restore interrupts. */
TX_RESTORE
/* Return success to caller. */
return(TX_SUCCESS);
}

View File

@@ -26,7 +26,7 @@
/* PORT SPECIFIC C INFORMATION RELEASE */
/* */
/* tx_port.h Cortex-M23/IAR */
/* 6.1.11 */
/* 6.1.12 */
/* */
/* AUTHOR */
/* */
@@ -51,6 +51,10 @@
/* 04-25-2022 Scott Larson Modified comments and added */
/* volatile to registers, */
/* resulting in version 6.1.11 */
/* 07-29-2022 Scott Larson Modified comments and changed */
/* secure stack initialization */
/* macro to port-specific, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
@@ -589,7 +593,7 @@ ULONG _tx_misra_ipsr_get(VOID);
#if !defined(TX_SINGLE_MODE_SECURE) && !defined(TX_SINGLE_MODE_NON_SECURE)
/* Initialize secure stacks for threads calling secure functions. */
extern void _tx_thread_secure_stack_initialize(void);
#define TX_INITIALIZE_KERNEL_ENTER_EXTENSION _tx_thread_secure_stack_initialize();
#define TX_PORT_SPECIFIC_PRE_INITIALIZATION _tx_thread_secure_stack_initialize();
#endif
/* Define the macro to ensure _tx_thread_preempt_disable is set early in initialization in order to
@@ -704,7 +708,7 @@ VOID _tx_thread_interrupt_restore(UIN
#ifdef TX_THREAD_INIT
CHAR _tx_version_id[] =
"Copyright (c) Microsoft Corporation. All rights reserved. * ThreadX Cortex-M23/IAR Version 6.1.11 *";
"Copyright (c) Microsoft Corporation. All rights reserved. * ThreadX Cortex-M23/IAR Version 6.1.12 *";
#else
#ifdef TX_MISRA_ENABLE
extern CHAR _tx_version_id[100];

View File

@@ -42,7 +42,7 @@
/* FUNCTION RELEASE */
/* */
/* _tx_thread_schedule Cortex-M23/IAR */
/* 6.1.11 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -77,6 +77,9 @@
/* 04-02-2021 Scott Larson Initial Version 6.1.6 */
/* 04-25-2022 Scott Larson Optimized MPU configuration, */
/* resulting in version 6.1.11 */
/* 07-29-2022 Scott Larson Removed the code path to skip */
/* MPU reloading, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
// VOID _tx_thread_schedule(VOID)
@@ -376,15 +379,6 @@ _skip_secure_restore:
LDR r2, [r0, r2] // Pickup MPU data region address
CBZ r2, skip_mpu_setup // Is protection required for this module? No, skip MPU setup
// Is the MPU already set up for this module?
MOVS r1, #2 // Select MPU region 2
LDR r3, =0xE000ED98 // MPU_RNR register address
STR r1, [r3] // Set region to 2
LDR r1, =0xE000ED9C // MPU_RBAR register address
LDR r3, [r1] // Load address stored in MPU region 2
CMP r2, r3 // Is module already loaded?
BEQ _tx_enable_mpu // Yes - skip MPU reconfiguration
// Initialize loop to configure MPU registers
MOVS r3, #0x64 // Index of MPU register settings in thread control block
ADD r0, r0, r3 // Build address of MPU register start in thread control block

View File

@@ -23,7 +23,7 @@
#include "tx_api.h"
/* If TX_SINGLE_MODE_SECURE or TX_SINGLE_MODE_NON_SECURE is defined,
/* If TX_SINGLE_MODE_SECURE or TX_SINGLE_MODE_NON_SECURE is defined,
no secure stack functionality is needed. */
#if !defined(TX_SINGLE_MODE_SECURE) && !defined(TX_SINGLE_MODE_NON_SECURE)
@@ -45,8 +45,14 @@
#define TX_THREAD_STACK_SEAL_SIZE 8
#define TX_THREAD_STACK_SEAL_VALUE 0xFEF5EDA5
/* Secure stack info struct to hold stack start, stack limit,
current stack pointer, and pointer to owning thread.
/* max number of Secure context */
#ifndef TX_MAX_SECURE_CONTEXTS
#define TX_MAX_SECURE_CONTEXTS 32
#endif
#define TX_INVALID_SECURE_CONTEXT_IDX (-1)
/* Secure stack info struct to hold stack start, stack limit,
current stack pointer, and pointer to owning thread.
This will be allocated for each thread with a secure stack. */
typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
{
@@ -54,8 +60,14 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
VOID *tx_thread_secure_stack_start; /* Thread's secure stack start address */
VOID *tx_thread_secure_stack_limit; /* Thread's secure stack limit */
TX_THREAD *tx_thread_ptr; /* Keep track of thread for error handling */
INT tx_next_free_index; /* Next free index of free secure context */
} TX_THREAD_SECURE_STACK_INFO;
/* Static secure contexts */
static TX_THREAD_SECURE_STACK_INFO tx_thread_secure_context[TX_MAX_SECURE_CONTEXTS];
/* Head of free secure context */
static INT tx_head_free_index = 0U;
/**************************************************************************/
@@ -63,7 +75,7 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_initialize Cortex-M23/IAR */
/* 6.1.8 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -98,16 +110,20 @@ typedef struct TX_THREAD_SECURE_STACK_INFO_STRUCT
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 10-16-2020 Scott Larson Modified comment(s), */
/* resulting in version 6.1.1 */
/* 08-02-2021 Scott Larson Modified comment(s), changed */
/* 06-02-2021 Scott Larson Modified comment(s), changed */
/* name, execute in handler */
/* mode, disable optimization, */
/* resulting in version 6.1.8 */
/* resulting in version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
UINT _tx_thread_secure_mode_stack_initialize(void)
{
UINT status;
INT index;
/* Make sure function is called from interrupt (threads should not call). */
if (__get_IPSR() == 0)
@@ -118,12 +134,26 @@ UINT status;
{
/* Set secure mode to use PSP. */
__set_CONTROL(__get_CONTROL() | 2);
/* Set process stack pointer and stack limit to 0 to throw exception when a thread
without a secure stack calls a secure function that tries to use secure stack. */
__set_PSPLIM(0);
__set_PSP(0);
for (index = 0; index < TX_MAX_SECURE_CONTEXTS; index++)
{
/* Check last index and mark next free to invalid index */
if(index == (TX_MAX_SECURE_CONTEXTS - 1))
{
tx_thread_secure_context[index].tx_next_free_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
else
{
tx_thread_secure_context[index].tx_next_free_index = index + 1;
}
}
status = TX_SUCCESS;
}
return status;
@@ -136,7 +166,7 @@ UINT status;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_allocate Cortex-M23/IAR */
/* 6.1.1 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -160,9 +190,7 @@ UINT status;
/* CALLS */
/* */
/* __get_IPSR Intrinsic to get IPSR */
/* calloc Compiler's calloc function */
/* malloc Compiler's malloc function */
/* free Compiler's free() function */
/* __set_PSPLIM Intrinsic to set PSP limit */
/* __set_PSP Intrinsic to set PSP */
/* __TZ_get_PSPLIM_NS Intrinsic to get NS PSP */
@@ -179,18 +207,24 @@ UINT status;
/* 10-16-2020 Scott Larson Modified comment(s), */
/* added stack sealing, */
/* resulting in version 6.1.1 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* added */
/* TX_INTERRUPT_SAVE_AREA, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
UINT _tx_thread_secure_mode_stack_allocate(TX_THREAD *thread_ptr, ULONG stack_size)
{
TX_INTERRUPT_SAVE_AREA
UINT status;
TX_THREAD_SECURE_STACK_INFO *info_ptr;
UCHAR *stack_mem;
ULONG sp;
INT secure_context_index;
status = TX_SUCCESS;
/* Make sure function is called from interrupt (threads should not call). */
if (__get_IPSR() == 0)
{
@@ -200,23 +234,38 @@ ULONG sp;
{
status = TX_SIZE_ERROR;
}
/* Check if thread already has secure stack allocated. */
else if (thread_ptr -> tx_thread_secure_stack_context != 0)
{
status = TX_THREAD_ERROR;
}
else
{
/* Allocate space for secure stack info. */
info_ptr = calloc(1, sizeof(TX_THREAD_SECURE_STACK_INFO));
if(info_ptr != TX_NULL)
TX_DISABLE
/* Allocate free index for secure stack info. */
if(tx_head_free_index != TX_INVALID_SECURE_CONTEXT_IDX)
{
secure_context_index = tx_head_free_index;
tx_head_free_index = tx_thread_secure_context[tx_head_free_index].tx_next_free_index;
tx_thread_secure_context[secure_context_index].tx_next_free_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
else
{
secure_context_index = TX_INVALID_SECURE_CONTEXT_IDX;
}
TX_RESTORE
if(secure_context_index != TX_INVALID_SECURE_CONTEXT_IDX)
{
info_ptr = &tx_thread_secure_context[secure_context_index];
/* If stack info allocated, allocate a stack & seal. */
stack_mem = malloc(stack_size + TX_THREAD_STACK_SEAL_SIZE);
if(stack_mem != TX_NULL)
{
/* Secure stack has been allocated, save in the stack info struct. */
@@ -224,38 +273,41 @@ ULONG sp;
info_ptr -> tx_thread_secure_stack_start = stack_mem + stack_size;
info_ptr -> tx_thread_secure_stack_ptr = info_ptr -> tx_thread_secure_stack_start;
info_ptr -> tx_thread_ptr = thread_ptr;
/* Seal bottom of stack. */
*(ULONG*)info_ptr -> tx_thread_secure_stack_start = TX_THREAD_STACK_SEAL_VALUE;
/* Save info pointer in thread. */
thread_ptr -> tx_thread_secure_stack_context = info_ptr;
/* Check if this thread is running by looking at PSP_NS and seeing if it is within
the stack_start and stack_end range. */
sp = __TZ_get_PSP_NS();
if(sp > ((ULONG) thread_ptr -> tx_thread_stack_start) && sp < ((ULONG) thread_ptr -> tx_thread_stack_end))
/* Save secure context id (i.e non-zero base index) in thread. */
thread_ptr -> tx_thread_secure_stack_context = (VOID *)(secure_context_index + 1);
/* Check if this thread is running by looking at its stack start and PSPLIM_NS */
if(((ULONG) thread_ptr -> tx_thread_stack_start & 0xFFFFFFF8) == __TZ_get_PSPLIM_NS())
{
/* If this thread is running, set Secure PSP and PSPLIM. */
__set_PSPLIM((ULONG)(info_ptr -> tx_thread_secure_stack_limit));
__set_PSP((ULONG)(info_ptr -> tx_thread_secure_stack_ptr));
}
}
else
{
TX_DISABLE
/* Stack not allocated, free the info struct. */
free(info_ptr);
tx_thread_secure_context[secure_context_index].tx_next_free_index = tx_head_free_index;
tx_head_free_index = secure_context_index;
TX_RESTORE
status = TX_NO_MEMORY;
}
}
else
{
status = TX_NO_MEMORY;
}
}
return(status);
}
@@ -266,7 +318,7 @@ ULONG sp;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_mode_stack_free Cortex-M23/IAR */
/* 6.1.1 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -301,44 +353,67 @@ ULONG sp;
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 10-16-2020 Scott Larson Modified comment(s), */
/* resulting in version 6.1.1 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* added */
/* TX_INTERRUPT_SAVE_AREA, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
UINT _tx_thread_secure_mode_stack_free(TX_THREAD *thread_ptr)
{
TX_INTERRUPT_SAVE_AREA
UINT status;
TX_THREAD_SECURE_STACK_INFO *info_ptr;
INT secure_context_index;
status = TX_SUCCESS;
/* Pickup stack info from thread. */
info_ptr = thread_ptr -> tx_thread_secure_stack_context;
/* Pickup stack info id from thread. */
secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* Make sure function is called from interrupt (threads should not call). */
if (__get_IPSR() == 0)
{
status = TX_CALLER_ERROR;
}
/* Check that this secure context is for this thread. */
else if (info_ptr -> tx_thread_ptr != thread_ptr)
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
status = TX_THREAD_ERROR;
}
else
{
/* Free secure stack. */
free(info_ptr -> tx_thread_secure_stack_limit);
/* Free info struct. */
free(info_ptr);
/* Clear secure context from thread. */
thread_ptr -> tx_thread_secure_stack_context = 0;
/* Pickup stack info from static array of secure contexts. */
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
status = TX_THREAD_ERROR;
}
else
{
/* Free secure stack. */
free(info_ptr -> tx_thread_secure_stack_limit);
TX_DISABLE
/* Free info struct. */
tx_thread_secure_context[secure_context_index].tx_next_free_index = tx_head_free_index;
tx_head_free_index = secure_context_index;
TX_RESTORE
/* Clear secure context from thread. */
thread_ptr -> tx_thread_secure_stack_context = 0;
}
}
return(status);
}
@@ -349,7 +424,7 @@ TX_THREAD_SECURE_STACK_INFO *info_ptr;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_stack_context_save Cortex-M23/IAR */
/* 6.1.7 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -386,6 +461,9 @@ TX_THREAD_SECURE_STACK_INFO *info_ptr;
/* resulting in version 6.1.1 */
/* 06-02-2021 Scott Larson Fix stack pointer save, */
/* resulting in version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
@@ -393,38 +471,45 @@ void _tx_thread_secure_stack_context_save(TX_THREAD *thread_ptr)
{
TX_THREAD_SECURE_STACK_INFO *info_ptr;
ULONG sp;
INT secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* This function should be called from scheduler only. */
if (__get_IPSR() == 0)
{
return;
}
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
return;
}
/* Pickup the secure context pointer. */
info_ptr = (TX_THREAD_SECURE_STACK_INFO *)(thread_ptr -> tx_thread_secure_stack_context);
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
return;
}
/* Check that stack pointer is in range */
sp = __get_PSP();
if ((sp < (ULONG)info_ptr -> tx_thread_secure_stack_limit) ||
if ((sp < (ULONG)info_ptr -> tx_thread_secure_stack_limit) ||
(sp > (ULONG)info_ptr -> tx_thread_secure_stack_start))
{
return;
}
/* Save stack pointer. */
info_ptr -> tx_thread_secure_stack_ptr = (VOID *) sp;
/* Set process stack pointer and stack limit to 0 to throw exception when a thread
without a secure stack calls a secure function that tries to use secure stack. */
__set_PSPLIM(0);
__set_PSP(0);
return;
}
@@ -435,7 +520,7 @@ ULONG sp;
/* FUNCTION RELEASE */
/* */
/* _tx_thread_secure_stack_context_restore Cortex-M23/IAR */
/* 6.1.1 */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
@@ -469,32 +554,42 @@ ULONG sp;
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 10-16-2020 Scott Larson Modified comment(s), */
/* resulting in version 6.1.1 */
/* 07-29-2022 Scott Larson Modified comments, updated */
/* secure stack allocation, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
__attribute__((cmse_nonsecure_entry))
void _tx_thread_secure_stack_context_restore(TX_THREAD *thread_ptr)
{
TX_THREAD_SECURE_STACK_INFO *info_ptr;
INT secure_context_index = (INT)thread_ptr -> tx_thread_secure_stack_context - 1;
/* This function should be called from scheduler only. */
if (__get_IPSR() == 0)
{
return;
}
/* Check if secure context index is in valid range. */
else if (secure_context_index < 0 || secure_context_index >= TX_MAX_SECURE_CONTEXTS)
{
return;
}
/* Pickup the secure context pointer. */
info_ptr = (TX_THREAD_SECURE_STACK_INFO *)(thread_ptr -> tx_thread_secure_stack_context);
info_ptr = &tx_thread_secure_context[secure_context_index];
/* Check that this secure context is for this thread. */
if (info_ptr -> tx_thread_ptr != thread_ptr)
{
return;
}
/* Set stack pointer and limit. */
__set_PSPLIM((ULONG)info_ptr -> tx_thread_secure_stack_limit);
__set_PSP ((ULONG)info_ptr -> tx_thread_secure_stack_ptr);
return;
}

View File

@@ -20,77 +20,59 @@
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_thread.h"
#include "tx_trace.h"
extern VOID (*_tx_thread_application_stack_error_handler)(TX_THREAD *thread_ptr);
SECTION `.text`:CODE:NOROOT(2)
THUMB
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_thread_stack_error_notify Cortex-M23 */
/* 6.1 */
/* _tx_thread_secure_stack_initialize Cortex-M23/IAR */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function registers an application stack error handler. If */
/* ThreadX detects a stack error, this application handler is called. */
/* */
/* This function enters the SVC handler to initialize a secure stack. */
/* */
/* INPUT */
/* */
/* stack_error_handler Pointer to stack error */
/* handler, TX_NULL to disable */
/* none */
/* */
/* OUTPUT */
/* */
/* status Service return status */
/* none */
/* */
/* CALLS */
/* */
/* None */
/* SVC 3 */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* TX_PORT_SPECIFIC_PRE_INITIALIZATION */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* 06-02-2021 Scott Larson Initial Version 6.1.7 */
/* 07-29-2022 Scott Larson Modified comments and changed */
/* secure stack initialization */
/* macro to port-specific, */
/* resulting in version 6.1.12 */
/* */
/**************************************************************************/
UINT _tx_thread_stack_error_notify(VOID (*stack_error_handler)(TX_THREAD *thread_ptr))
{
TX_INTERRUPT_SAVE_AREA
/* Disable interrupts. */
TX_DISABLE
/* Make entry in event log. */
TX_TRACE_IN_LINE_INSERT(TX_TRACE_THREAD_STACK_ERROR_NOTIFY, 0, 0, 0, 0, TX_TRACE_THREAD_EVENTS)
/* Make entry in event log. */
TX_EL_THREAD_STACK_ERROR_NOTIFY_INSERT
/* Setup global thread stack error handler. */
_tx_thread_application_stack_error_handler = stack_error_handler;
/* Restore interrupts. */
TX_RESTORE
/* Return success to caller. */
return(TX_SUCCESS);
}
// VOID _tx_thread_secure_stack_initialize(VOID)
// {
EXPORT _tx_thread_secure_stack_initialize
_tx_thread_secure_stack_initialize:
#if !defined(TX_SINGLE_MODE_SECURE) && !defined(TX_SINGLE_MODE_NON_SECURE)
CPSIE i // Enable interrupts for SVC call
SVC 3
CPSID i // Disable interrupts
#else
MOV r0, #0xFF // Feature not enabled
#endif
BX lr
END

View File

@@ -1,93 +0,0 @@
/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Thread */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_thread.h"
/* Define the global function pointer for stack error handling. If a stack error is
detected and the application has registered a stack error handler, it will be
called via this function pointer. */
VOID (*_tx_thread_application_stack_error_handler)(TX_THREAD *thread_ptr);
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_thread_stack_error_handler Cortex-M23 */
/* 6.1 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function processes stack errors detected during run-time. */
/* */
/* */
/* INPUT */
/* */
/* thread_ptr Thread control block pointer */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _tx_thread_terminate */
/* _tx_thread_application_stack_error_handler */
/* */
/* CALLED BY */
/* */
/* ThreadX internal code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 Scott Larson Initial Version 6.1 */
/* */
/**************************************************************************/
VOID _tx_thread_stack_error_handler(TX_THREAD *thread_ptr)
{
#ifndef TX_THREAD_NO_TERMINATE_STACK_ERROR
/* Is there a thread? */
if (thread_ptr)
{
/* Terminate the current thread. */
_tx_thread_terminate(_tx_thread_current_ptr);
}
#endif
/* Determine if the application has registered an error handler. */
if (_tx_thread_application_stack_error_handler != TX_NULL)
{
/* Yes, an error handler is present, simply call the application error handler. */
(_tx_thread_application_stack_error_handler)(thread_ptr);
}
}