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/**
* @file
*
* @ingroup libmisc_stackchk
*
* @brief Stack Checker Information
*
* This include file contains information necessary to utilize
* and install the stack checker mechanism.
*/
/*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _RTEMS_STACKCHK_H
#define _RTEMS_STACKCHK_H
#include <stdbool.h> /* bool */
#include <rtems/score/thread.h> /* Thread_Control */
#include <rtems/print.h>
/**
* @defgroup libmisc_stackchk Stack Checker Mechanism
*
* @ingroup RTEMSAPIClassic
*/
/**@{*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Checks if current task is blown its stack.
*
* This method is used to determine if the current stack pointer
* of the currently executing task is within bounds.
*
* @retval This method returns true if the currently executing task
* has blown its stack.
*
*/
bool rtems_stack_checker_is_blown( void );
/**
* @brief Print the stack usage report using printk.
*
* This method prints a stack usage report for the curently executing
* task.
*
* @note It uses printk to print the report.
*/
void rtems_stack_checker_report_usage( void );
/**
* @brief Print the stack usage report using caller's routine.
*
* This method prints a stack usage report for the curently executing
* task.
*
* @param[in] context is the context to pass to the print handler
* @param[in] print is the print handler
*
* @note It uses the caller's routine to print the report.
*/
void rtems_stack_checker_report_usage_with_plugin(
const rtems_printer *printer
);
/*************************************************************
*************************************************************
** Prototyped only so the user extension can be installed **
*************************************************************
*************************************************************/
/**
* @brief Stack Checker Task Create Extension
*
* This method is the task create extension for the stack checker.
*
* @param[in] running points to the currently executing task
* @param[in] the_thread points to the newly created task
*
* @note If this this the first task created, the stack checker
* will automatically intialize itself.
*/
bool rtems_stack_checker_create_extension(
Thread_Control *running,
Thread_Control *the_thread
);
void rtems_stack_checker_begin_extension( Thread_Control *executing );
/**
* @brief Stack Checker Task Context Switch Extension
*
* This method is the task context switch extension for the stack checker.
*
* @param[in] running points to the currently executing task which
* is being context switched out
* @param[in] running points to the heir task which we are switching to
*
* @note This is called from the internal method _Thread_Dispatch.
*/
void rtems_stack_checker_switch_extension(
Thread_Control *running,
Thread_Control *heir
);
/**
* @brief Stack Checker Extension Set Definition
*
* This macro defines the user extension handler set for the stack
* checker. This macro is normally only used by confdefs.h.
*/
#define RTEMS_STACK_CHECKER_EXTENSION \
{ \
rtems_stack_checker_create_extension, /* rtems_task_create */ \
0, /* rtems_task_start */ \
0, /* rtems_task_restart */ \
0, /* rtems_task_delete */ \
rtems_stack_checker_switch_extension, /* task_switch */ \
rtems_stack_checker_begin_extension, /* task_begin */ \
0, /* task_exitted */ \
0, /* fatal */ \
0 /* terminate */ \
}
#ifdef __cplusplus
}
#endif
/**@}*/
#endif
/* end of include file */
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