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Paul Bartell 2022-11-29 10:36:04 -08:00 • committed by Paul Bartell
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portable/ThirdParty/GCC/Xtensa_ESP32/include/xtensa_config.h vendored
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@ -1,154 +1,154 @@
/*
* SPDX-FileCopyrightText: 2015-2019 Cadence Design Systems, Inc.
*
* SPDX-License-Identifier: MIT
*
* SPDX-FileContributor: 2016-2022 Espressif Systems (Shanghai) CO LTD
*/
/*
* Copyright (c) 2015-2019 Cadence Design Systems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*******************************************************************************
*
* Configuration-specific information for Xtensa build. This file must be
* included in FreeRTOSConfig.h to properly set up the config-dependent
* parameters correctly.
*
* NOTE: To enable thread-safe C library support, XT_USE_THREAD_SAFE_CLIB must
* be defined to be > 0 somewhere above or on the command line.
*
*******************************************************************************/
#ifndef XTENSA_CONFIG_H
#define XTENSA_CONFIG_H
#ifdef __cplusplus
extern "C" {
#endif
#include <xtensa/hal.h>
#include <xtensa/config/core.h>
#include <xtensa/config/system.h> /* required for XSHAL_CLIB */
#include "xtensa_context.h"
/*-----------------------------------------------------------------------------
* STACK REQUIREMENTS
*
* This section defines the minimum stack size, and the extra space required to
* be allocated for saving coprocessor state and/or C library state information
* (if thread safety is enabled for the C library). The sizes are in bytes.
*
* Stack sizes for individual tasks should be derived from these minima based on
* the maximum call depth of the task and the maximum level of interrupt nesting.
* A minimum stack size is defined by XT_STACK_MIN_SIZE. This minimum is based
* on the requirement for a task that calls nothing else but can be interrupted.
* This assumes that interrupt handlers do not call more than a few levels deep.
* If this is not true, i.e. one or more interrupt handlers make deep calls then
* the minimum must be increased.
*
* If the Xtensa processor configuration includes coprocessors, then space is
* allocated to save the coprocessor state on the stack.
*
* If thread safety is enabled for the C runtime library, (XT_USE_THREAD_SAFE_CLIB
* is defined) then space is allocated to save the C library context in the TCB.
*
* Allocating insufficient stack space is a common source of hard-to-find errors.
* During development, it is best to enable the FreeRTOS stack checking features.
*
* Usage:
*
* XT_USE_THREAD_SAFE_CLIB -- Define this to a nonzero value to enable thread-safe
* use of the C library. This will require extra stack
* space to be allocated for tasks that use the C library
* reentrant functions. See below for more information.
*
* NOTE: The Xtensa toolchain supports multiple C libraries and not all of them
* support thread safety. Check your core configuration to see which C library
* was chosen for your system.
*
* XT_STACK_MIN_SIZE -- The minimum stack size for any task. It is recommended
* that you do not use a stack smaller than this for any
* task. In case you want to use stacks smaller than this
* size, you must verify that the smaller size(s) will work
* under all operating conditions.
*
* XT_STACK_EXTRA -- The amount of extra stack space to allocate for a task
* that does not make C library reentrant calls. Add this
* to the amount of stack space required by the task itself.
*
* XT_STACK_EXTRA_CLIB -- The amount of space to allocate for C library state.
*
* -----------------------------------------------------------------------------*/
/* Extra space required for interrupt/exception hooks. */
#ifdef XT_INTEXC_HOOKS
#ifdef __XTENSA_CALL0_ABI__
#define STK_INTEXC_EXTRA 0x200
#else
#define STK_INTEXC_EXTRA 0x180
#endif
#else
#define STK_INTEXC_EXTRA 0
#endif
#define XT_CLIB_CONTEXT_AREA_SIZE 0
/*------------------------------------------------------------------------------
* Extra size -- interrupt frame plus coprocessor save area plus hook space.
* NOTE: Make sure XT_INTEXC_HOOKS is undefined unless you really need the hooks.
* ------------------------------------------------------------------------------*/
#ifdef __XTENSA_CALL0_ABI__
#define XT_XTRA_SIZE ( XT_STK_FRMSZ + STK_INTEXC_EXTRA + 0x10 + XT_CP_SIZE )
#else
#define XT_XTRA_SIZE ( XT_STK_FRMSZ + STK_INTEXC_EXTRA + 0x20 + XT_CP_SIZE )
#endif
/*------------------------------------------------------------------------------
* Space allocated for user code -- function calls and local variables.
* NOTE: This number can be adjusted to suit your needs. You must verify that the
* amount of space you reserve is adequate for the worst-case conditions in your
* application.
* NOTE: The windowed ABI requires more stack, since space has to be reserved
* for spilling register windows.
* ------------------------------------------------------------------------------*/
#ifdef __XTENSA_CALL0_ABI__
#define XT_USER_SIZE 0x200
#else
#define XT_USER_SIZE 0x400
#endif
/* Minimum recommended stack size. */
#define XT_STACK_MIN_SIZE ( ( XT_XTRA_SIZE + XT_USER_SIZE ) / sizeof( unsigned char ) )
/* OS overhead with and without C library thread context. */
#define XT_STACK_EXTRA ( XT_XTRA_SIZE )
#define XT_STACK_EXTRA_CLIB ( XT_XTRA_SIZE + XT_CLIB_CONTEXT_AREA_SIZE )
#ifdef __cplusplus
}
#endif
#endif /* XTENSA_CONFIG_H */
/*
* SPDX-FileCopyrightText: 2015-2019 Cadence Design Systems, Inc.
*
* SPDX-License-Identifier: MIT
*
* SPDX-FileContributor: 2016-2022 Espressif Systems (Shanghai) CO LTD
*/
/*
* Copyright (c) 2015-2019 Cadence Design Systems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*******************************************************************************
*
* Configuration-specific information for Xtensa build. This file must be
* included in FreeRTOSConfig.h to properly set up the config-dependent
* parameters correctly.
*
* NOTE: To enable thread-safe C library support, XT_USE_THREAD_SAFE_CLIB must
* be defined to be > 0 somewhere above or on the command line.
*
*******************************************************************************/
#ifndef XTENSA_CONFIG_H
#define XTENSA_CONFIG_H
#ifdef __cplusplus
extern "C" {
#endif
#include <xtensa/hal.h>
#include <xtensa/config/core.h>
#include <xtensa/config/system.h> /* required for XSHAL_CLIB */
#include "xtensa_context.h"
/*-----------------------------------------------------------------------------
* STACK REQUIREMENTS
*
* This section defines the minimum stack size, and the extra space required to
* be allocated for saving coprocessor state and/or C library state information
* (if thread safety is enabled for the C library). The sizes are in bytes.
*
* Stack sizes for individual tasks should be derived from these minima based on
* the maximum call depth of the task and the maximum level of interrupt nesting.
* A minimum stack size is defined by XT_STACK_MIN_SIZE. This minimum is based
* on the requirement for a task that calls nothing else but can be interrupted.
* This assumes that interrupt handlers do not call more than a few levels deep.
* If this is not true, i.e. one or more interrupt handlers make deep calls then
* the minimum must be increased.
*
* If the Xtensa processor configuration includes coprocessors, then space is
* allocated to save the coprocessor state on the stack.
*
* If thread safety is enabled for the C runtime library, (XT_USE_THREAD_SAFE_CLIB
* is defined) then space is allocated to save the C library context in the TCB.
*
* Allocating insufficient stack space is a common source of hard-to-find errors.
* During development, it is best to enable the FreeRTOS stack checking features.
*
* Usage:
*
* XT_USE_THREAD_SAFE_CLIB -- Define this to a nonzero value to enable thread-safe
* use of the C library. This will require extra stack
* space to be allocated for tasks that use the C library
* reentrant functions. See below for more information.
*
* NOTE: The Xtensa toolchain supports multiple C libraries and not all of them
* support thread safety. Check your core configuration to see which C library
* was chosen for your system.
*
* XT_STACK_MIN_SIZE -- The minimum stack size for any task. It is recommended
* that you do not use a stack smaller than this for any
* task. In case you want to use stacks smaller than this
* size, you must verify that the smaller size(s) will work
* under all operating conditions.
*
* XT_STACK_EXTRA -- The amount of extra stack space to allocate for a task
* that does not make C library reentrant calls. Add this
* to the amount of stack space required by the task itself.
*
* XT_STACK_EXTRA_CLIB -- The amount of space to allocate for C library state.
*
* -----------------------------------------------------------------------------*/
/* Extra space required for interrupt/exception hooks. */
#ifdef XT_INTEXC_HOOKS
#ifdef __XTENSA_CALL0_ABI__
#define STK_INTEXC_EXTRA 0x200
#else
#define STK_INTEXC_EXTRA 0x180
#endif
#else
#define STK_INTEXC_EXTRA 0
#endif
#define XT_CLIB_CONTEXT_AREA_SIZE 0
/*------------------------------------------------------------------------------
* Extra size -- interrupt frame plus coprocessor save area plus hook space.
* NOTE: Make sure XT_INTEXC_HOOKS is undefined unless you really need the hooks.
* ------------------------------------------------------------------------------*/
#ifdef __XTENSA_CALL0_ABI__
#define XT_XTRA_SIZE ( XT_STK_FRMSZ + STK_INTEXC_EXTRA + 0x10 + XT_CP_SIZE )
#else
#define XT_XTRA_SIZE ( XT_STK_FRMSZ + STK_INTEXC_EXTRA + 0x20 + XT_CP_SIZE )
#endif
/*------------------------------------------------------------------------------
* Space allocated for user code -- function calls and local variables.
* NOTE: This number can be adjusted to suit your needs. You must verify that the
* amount of space you reserve is adequate for the worst-case conditions in your
* application.
* NOTE: The windowed ABI requires more stack, since space has to be reserved
* for spilling register windows.
* ------------------------------------------------------------------------------*/
#ifdef __XTENSA_CALL0_ABI__
#define XT_USER_SIZE 0x200
#else
#define XT_USER_SIZE 0x400
#endif
/* Minimum recommended stack size. */
#define XT_STACK_MIN_SIZE ( ( XT_XTRA_SIZE + XT_USER_SIZE ) / sizeof( unsigned char ) )
/* OS overhead with and without C library thread context. */
#define XT_STACK_EXTRA ( XT_XTRA_SIZE )
#define XT_STACK_EXTRA_CLIB ( XT_XTRA_SIZE + XT_CLIB_CONTEXT_AREA_SIZE )
#ifdef __cplusplus
}
#endif
#endif /* XTENSA_CONFIG_H */