1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/*
* FreeRTOS Kernel V10.4.3 LTS Patch 2
* Copyright (C) 2020 Synopsys, Inc. or its affiliates. All Rights Reserved.
*
* 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.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#if defined( __MW__ )
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "FreeRTOS.h"
#include "queue.h"
#include "semphr.h"
#include "task.h"
#include "arc/arc_exception.h"
#include "embARC_toolchain.h"
#include "embARC_debug.h"
#ifdef ENABLE_FREERTOS_TLS_DEBUG
#define TLS_DEBUG( fmt, ... ) EMBARC_PRINTF( fmt, ## __VA_ARGS__ )
#else
#define TLS_DEBUG( fmt, ... )
#endif
/*
* Runtime routines to execute constructors and
* destructors for task local storage.
*/
extern void __mw_run_tls_dtor();
extern void __mw_run_tls_ctor();
extern uint32_t exc_nest_count;
/*
* Linker generated symbols to mark .tls section addresses
* first byte .. last byte
*/
extern char _ftls[], _etls[];
#pragma weak _ftls
#pragma weak _etls
void executable_requires_tls_section( void )
{
#if _ARC
for( ; ; )
{
_flag( 1 );
_nop();
_nop();
_nop();
_nop();
_nop();
}
#endif
}
#pragma off_inline(executable_requires_tls_section);
#pragma alias(executable_requires_tls_section, "executable_requires_.tls_section");
static void * init_task_tls( void )
{
uint32_t len = ( uint32_t ) ( _etls - _ftls );
void * tls = NULL;
#if FREERTOS_HEAP_SEL == 3
#warning "FreeRTOS TLS support is not compatible with heap 3 solution(FREERTOS_HEAP_SEL=3)!"
#warning "You can change FREERTOS_HEAP_SEL in freertos.mk to select other heap solution."
#else
tls = pvPortMalloc( len );
#endif
if( tls )
{
TLS_DEBUG( "Malloc task tls:%dbytes\r\n", len );
memcpy( tls, _ftls, len );
__mw_run_tls_ctor(); /* Run constructors */
}
return tls;
}
static void free_task_tls( void * pxTCB )
{
TaskHandle_t task2free = ( TaskHandle_t ) pxTCB;
if( task2free != NULL )
{
void * tls = pvTaskGetThreadLocalStoragePointer( task2free, 0 );
if( tls )
{
TLS_DEBUG( "Free task tls\r\n" );
__mw_run_tls_dtor();
vPortFree( tls );
vTaskSetThreadLocalStoragePointer( task2free, 0, NULL );
}
}
}
void task_end_hook( void * pxTCB )
{
free_task_tls( pxTCB );
}
static void * get_isr_tls( void )
{
/* In an ISR */
static int first = 1;
if( _Rarely( first ) )
{
first = 0;
__mw_run_tls_ctor(); /* Run constructors */
}
return ( void * ) _ftls;
}
#pragma off_inline(get_isr_tls)
static void * get_task_tls( void )
{
TaskHandle_t cur_task;
cur_task = xTaskGetCurrentTaskHandle();
if( cur_task == NULL )
{
return get_isr_tls();
}
void * tls = pvTaskGetThreadLocalStoragePointer( cur_task, 0 );
if( tls == NULL )
{
tls = init_task_tls();
if( tls )
{
vTaskSetThreadLocalStoragePointer( cur_task, 0, tls );
}
else
{
tls = get_isr_tls();
}
}
return tls;
}
#pragma off_inline(get_task_tls)
#if _ARC /* for ARC XCALLs need to preserve flags */
extern void * _Preserve_flags _mwget_tls( void );
#endif
/*
* Back end gens calls to find local data for this task
*/
void * _mwget_tls( void )
{
if( _ftls == ( char * ) 0 )
{
executable_requires_tls_section();
}
if( exc_nest_count > 0 ) /* In ISR */
{
return get_isr_tls();
}
else /* In Task */
{
return get_task_tls();
}
}
/* simple interface of thread safe */
typedef xSemaphoreHandle _lock_t;
#if configUSE_RECURSIVE_MUTEXES != 1
#error "configUSE_RECURSIVE_MUTEXES in FreeRTOSConfig.h need to 1"
#endif
void _mwmutex_create( _lock_t * mutex_ptr )
{
*mutex_ptr = xSemaphoreCreateRecursiveMutex();
}
void _mwmutex_delete( _lock_t * mutex_ptr )
{
if( ( *mutex_ptr ) != NULL )
{
vSemaphoreDelete( *mutex_ptr );
}
}
void _mwmutex_lock( _lock_t mutex )
{
if( ( mutex ) != NULL )
{
while( xSemaphoreTakeRecursive( mutex, portMAX_DELAY ) != pdTRUE )
{
}
}
}
void _mwmutex_unlock( _lock_t mutex )
{
if( ( mutex ) != NULL )
{
xSemaphoreGiveRecursive( mutex );
}
}
#else /* if defined( __MW__ ) */
#endif /* __MW__ */
|
