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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2026-present Eclipse ThreadX contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Thread */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_initialize.h"
#include "tx_thread.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _txe_thread_secure_stack_free Cortex-Mxx */
/* 6.1 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks for errors in the secure stack free */
/* function call. */
/* */
/* INPUT */
/* */
/* thread_ptr Thread control block pointer */
/* */
/* OUTPUT */
/* */
/* TX_THREAD_ERROR Invalid thread pointer */
/* TX_CALLER_ERROR Invalid caller of function */
/* status Actual completion status */
/* */
/* CALLS */
/* */
/* _tx_thread_secure_stack_free Actual stack free function */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/**************************************************************************/
UINT _txe_thread_secure_stack_free(TX_THREAD *thread_ptr)
{
#if defined(TX_SINGLE_MODE_SECURE) || defined(TX_SINGLE_MODE_NON_SECURE)
return(TX_FEATURE_NOT_ENABLED);
#else
UINT status;
/* Default status to success. */
status = TX_SUCCESS;
/* Check for an invalid thread pointer. */
if (thread_ptr == TX_NULL)
{
/* Thread pointer is invalid, return appropriate error code. */
status = TX_THREAD_ERROR;
}
/* Now check for invalid thread ID. */
else if (thread_ptr -> tx_thread_id != TX_THREAD_ID)
{
/* Thread pointer is invalid, return appropriate error code. */
status = TX_THREAD_ERROR;
}
/* Check for interrupt call. */
if (TX_THREAD_GET_SYSTEM_STATE() != ((ULONG) 0))
{
/* Is call from an interrupt and not initialization? */
if (TX_THREAD_GET_SYSTEM_STATE() < TX_INITIALIZE_IN_PROGRESS)
{
/* Invalid caller of this function, return appropriate error code. */
status = TX_CALLER_ERROR;
}
}
/* Determine if everything is okay. */
if (status == TX_SUCCESS)
{
/* Call actual secure stack allocate function. */
status = _tx_thread_secure_stack_free(thread_ptr);
}
/* Return completion status. */
return(status);
#endif
}
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