StackMacros.h

Revision 14, 8.0 kB (checked in by phil, 15 years ago)
added unmodified FreeRTOS package V5.4.1 with only web srv demo source for LPC2368 for CrossWorks?

Line
1	/*
2	FreeRTOS V5.4.1 - Copyright (C) 2009 Real Time Engineers Ltd.
3
4	This file is part of the FreeRTOS distribution.
5
6	FreeRTOS is free software; you can redistribute it and/or modify it under
7	the terms of the GNU General Public License (version 2) as published by the
8	Free Software Foundation and modified by the FreeRTOS exception.
9	NOTE The exception to the GPL is included to allow you to distribute a
10	combined work that includes FreeRTOS without being obliged to provide the
11	source code for proprietary components outside of the FreeRTOS kernel.
12	Alternative commercial license and support terms are also available upon
13	request. See the licensing section of http://www.FreeRTOS.org for full
14	license details.
15
16	FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
17	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19	more details.
20
21	You should have received a copy of the GNU General Public License along
22	with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
23	Temple Place, Suite 330, Boston, MA 02111-1307 USA.
24
25
26	***************************************************************************
27	* *
28	* Looking for a quick start? Then check out the FreeRTOS eBook! *
29	* See http://www.FreeRTOS.org/Documentation for details *
30	* *
31	***************************************************************************
32
33	1 tab == 4 spaces!
34
35	Please ensure to read the configuration and relevant port sections of the
36	online documentation.
37
38	http://www.FreeRTOS.org - Documentation, latest information, license and
39	contact details.
40
41	http://www.SafeRTOS.com - A version that is certified for use in safety
42	critical systems.
43
44	http://www.OpenRTOS.com - Commercial support, development, porting,
45	licensing and training services.
46	*/
47
48	#ifndef STACK_MACROS_H
49	#define STACK_MACROS_H
50
51	/*
52	* Call the stack overflow hook function if the stack of the task being swapped
53	* out is currently overflowed, or looks like it might have overflowed in the
54	* past.
55	*
56	* Setting configCHECK_FOR_STACK_OVERFLOW to 1 will cause the macro to check
57	* the current stack state only - comparing the current top of stack value to
58	* the stack limit. Setting configCHECK_FOR_STACK_OVERFLOW to greater than 1
59	* will also cause the last few stack bytes to be checked to ensure the value
60	* to which the bytes were set when the task was created have not been
61	* overwritten. Note this second test does not guarantee that an overflowed
62	* stack will always be recognised.
63	*/
64
65	/-----------------------------------------------------------/
66
67	#if( configCHECK_FOR_STACK_OVERFLOW == 0 )
68
69	/* FreeRTOSConfig.h is not set to check for stack overflows. */
70	#define taskFIRST_CHECK_FOR_STACK_OVERFLOW()
71	#define taskSECOND_CHECK_FOR_STACK_OVERFLOW()
72
73	#endif /* configCHECK_FOR_STACK_OVERFLOW == 0 */
74	/-----------------------------------------------------------/
75
76	#if( configCHECK_FOR_STACK_OVERFLOW == 1 )
77
78	/* FreeRTOSConfig.h is only set to use the first method of
79	overflow checking. */
80	#define taskSECOND_CHECK_FOR_STACK_OVERFLOW()
81
82	#endif
83	/-----------------------------------------------------------/
84
85	#if( ( configCHECK_FOR_STACK_OVERFLOW > 0 ) && ( portSTACK_GROWTH < 0 ) )
86
87	/* Only the current stack state is to be checked. */
88	#define taskFIRST_CHECK_FOR_STACK_OVERFLOW() \
89	{ \
90	extern void vApplicationStackOverflowHook( xTaskHandle pxTask, signed portCHAR pcTaskName ); \
91	\
92	/* Is the currently saved stack pointer within the stack limit? */ \
93	if( pxCurrentTCB->pxTopOfStack <= pxCurrentTCB->pxStack ) \
94	{ \
95	vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
96	} \
97	}
98
99	#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */
100	/-----------------------------------------------------------/
101
102	#if( ( configCHECK_FOR_STACK_OVERFLOW > 0 ) && ( portSTACK_GROWTH > 0 ) )
103
104	/* Only the current stack state is to be checked. */
105	#define taskFIRST_CHECK_FOR_STACK_OVERFLOW() \
106	{ \
107	extern void vApplicationStackOverflowHook( xTaskHandle pxTask, signed portCHAR pcTaskName ); \
108	\
109	/* Is the currently saved stack pointer within the stack limit? */ \
110	if( pxCurrentTCB->pxTopOfStack >= pxCurrentTCB->pxEndOfStack ) \
111	{ \
112	vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
113	} \
114	}
115
116	#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */
117	/-----------------------------------------------------------/
118
119	#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH < 0 ) )
120
121	#define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \
122	{ \
123	extern void vApplicationStackOverflowHook( xTaskHandle pxTask, signed portCHAR pcTaskName ); \
124	static const unsigned portCHAR ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
125	tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
126	tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
127	tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
128	tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE }; \
129	\
130	\
131	/* Has the extremity of the task stack ever been written over? */ \
132	if( memcmp( ( void * ) pxCurrentTCB->pxStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \
133	{ \
134	vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
135	} \
136	}
137
138	#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
139	/-----------------------------------------------------------/
140
141	#if( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH > 0 ) )
142
143	#define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \
144	{ \
145	extern void vApplicationStackOverflowHook( xTaskHandle pxTask, signed portCHAR pcTaskName ); \
146	portCHAR pcEndOfStack = ( portCHAR ) pxCurrentTCB->pxEndOfStack; \
147	static const unsigned portCHAR ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
148	tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
149	tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
150	tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
151	tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE }; \
152	\
153	\
154	pcEndOfStack -= sizeof( ucExpectedStackBytes ); \
155	\
156	/* Has the extremity of the task stack ever been written over? */ \
157	if( memcmp( ( void * ) pcEndOfStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) != 0 ) \
158	{ \
159	vApplicationStackOverflowHook( ( xTaskHandle ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
160	} \
161	}
162
163	#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
164	/-----------------------------------------------------------/
165
166	#endif /* STACK_MACROS_H */
167

Note: See TracBrowser for help on using the browser.

root/webserver/example/freeRTOS/Source/include/StackMacros.h

Download in other formats: