check.c File Reference

This file contains the Stack Overflow Check user extension set. More...

#include <rtems.h>
#include <inttypes.h>
#include <string.h>
#include <stdlib.h>
#include <rtems/bspIo.h>
#include <rtems/printer.h>
#include <rtems/stackchk.h>
#include <rtems/sysinit.h>
#include <rtems/score/address.h>
#include <rtems/score/percpu.h>
#include <rtems/score/smp.h>
#include <rtems/score/threadimpl.h>

Data Structures
struct	Stack_check_Visitor

Macros
#define	CPU_STACK_CHECK_PATTERN_INITIALIZER
#define	BYTE_PATTERN   0xA5
#define	U32_PATTERN   0xA5A5A5A5
#define	SANITY_PATTERN_SIZE_BYTES   sizeof(Stack_check_Sanity_pattern)
#define	SANITY_PATTERN_SIZE_WORDS   RTEMS_ARRAY_SIZE(Stack_check_Sanity_pattern)
#define	Stack_check_Get_pattern(_the_stack)
#define	Stack_check_Calculate_used(_low, _size, _high_water)    ((char *)(_high_water) - (char *)(_low))
#define	Stack_check_Usable_stack_start(_the_stack)    ((_the_stack)->area)
#define	Stack_check_Usable_stack_size(_the_stack)    ((_the_stack)->size - SANITY_PATTERN_SIZE_BYTES)

Functions
bool	rtems_stack_checker_create_extension (Thread_Control *running RTEMS_UNUSED, Thread_Control *the_thread)
void	rtems_stack_checker_begin_extension (Thread_Control *executing)
void	rtems_stack_checker_reporter_print_details (const Thread_Control *running, bool pattern_ok)
	The Default Function to Report a Blown Stack.
void	rtems_stack_checker_reporter_quiet (const Thread_Control *running, bool pattern_ok)
	A Quiet Version of Stack Checker Reporter.
void	rtems_stack_checker_switch_extension (Thread_Control *running, Thread_Control *heir)
	Stack Checker Task Context Switch Extension.
bool	rtems_stack_checker_is_blown (void)
	Checks if current task is blown its stack.
void	rtems_stack_checker_report_usage_with_plugin (const rtems_printer *printer)
	Print the stack usage report using caller's routine.
void	rtems_stack_checker_report_usage (void)
	Print the stack usage report using printk.
void	rtems_stack_checker_iterate (rtems_stack_checker_visitor visit, void *arg)
	Iterates over all stacks used by the system and invokes the visitor routine for each stack.
	RTEMS_SYSINIT_ITEM (Stack_check_Prepare_interrupt_stacks, RTEMS_SYSINIT_ISR_STACK, RTEMS_SYSINIT_ORDER_MIDDLE)

Detailed Description

This file contains the Stack Overflow Check user extension set.

Note

This extension set uses conditional compilation to account for stack growth direction.

Macro Definition Documentation

CPU_STACK_CHECK_PATTERN_INITIALIZER

#define CPU_STACK_CHECK_PATTERN_INITIALIZER

Value:

  { \
    0xFEEDF00D, 0x0BAD0D06, /* FEED FOOD to  BAD DOG */ \
    0xDEADF00D, 0x600D0D06  /* DEAD FOOD but GOOD DOG */ \
  }

Stack_check_Get_pattern

#define Stack_check_Get_pattern

(

_the_stack

)

Value:

    ((char *)(_the_stack)->area + \
         (_the_stack)->size - SANITY_PATTERN_SIZE_BYTES )