in OS_TSK, rename run as tsk_run and new as tsk_new.
rt_System.c@0:5f46ebd8588e, 2012-09-02 (annotated)
- Committer:
- jonathonfletcher
- Date:
- Sun Sep 02 03:24:20 2012 +0000
- Revision:
- 0:5f46ebd8588e
in OS_TSK, rename run as tsk_run and new as tsk_new.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jonathonfletcher | 0:5f46ebd8588e | 1 | /*---------------------------------------------------------------------------- |
jonathonfletcher | 0:5f46ebd8588e | 2 | * RL-ARM - RTX |
jonathonfletcher | 0:5f46ebd8588e | 3 | *---------------------------------------------------------------------------- |
jonathonfletcher | 0:5f46ebd8588e | 4 | * Name: RT_SYSTEM.C |
jonathonfletcher | 0:5f46ebd8588e | 5 | * Purpose: System Task Manager |
jonathonfletcher | 0:5f46ebd8588e | 6 | * Rev.: V4.50 |
jonathonfletcher | 0:5f46ebd8588e | 7 | *---------------------------------------------------------------------------- |
jonathonfletcher | 0:5f46ebd8588e | 8 | * |
jonathonfletcher | 0:5f46ebd8588e | 9 | * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH |
jonathonfletcher | 0:5f46ebd8588e | 10 | * All rights reserved. |
jonathonfletcher | 0:5f46ebd8588e | 11 | * Redistribution and use in source and binary forms, with or without |
jonathonfletcher | 0:5f46ebd8588e | 12 | * modification, are permitted provided that the following conditions are met: |
jonathonfletcher | 0:5f46ebd8588e | 13 | * - Redistributions of source code must retain the above copyright |
jonathonfletcher | 0:5f46ebd8588e | 14 | * notice, this list of conditions and the following disclaimer. |
jonathonfletcher | 0:5f46ebd8588e | 15 | * - Redistributions in binary form must reproduce the above copyright |
jonathonfletcher | 0:5f46ebd8588e | 16 | * notice, this list of conditions and the following disclaimer in the |
jonathonfletcher | 0:5f46ebd8588e | 17 | * documentation and/or other materials provided with the distribution. |
jonathonfletcher | 0:5f46ebd8588e | 18 | * - Neither the name of ARM nor the names of its contributors may be used |
jonathonfletcher | 0:5f46ebd8588e | 19 | * to endorse or promote products derived from this software without |
jonathonfletcher | 0:5f46ebd8588e | 20 | * specific prior written permission. |
jonathonfletcher | 0:5f46ebd8588e | 21 | * |
jonathonfletcher | 0:5f46ebd8588e | 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
jonathonfletcher | 0:5f46ebd8588e | 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
jonathonfletcher | 0:5f46ebd8588e | 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
jonathonfletcher | 0:5f46ebd8588e | 25 | * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE |
jonathonfletcher | 0:5f46ebd8588e | 26 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
jonathonfletcher | 0:5f46ebd8588e | 27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
jonathonfletcher | 0:5f46ebd8588e | 28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
jonathonfletcher | 0:5f46ebd8588e | 29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
jonathonfletcher | 0:5f46ebd8588e | 30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
jonathonfletcher | 0:5f46ebd8588e | 31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
jonathonfletcher | 0:5f46ebd8588e | 32 | * POSSIBILITY OF SUCH DAMAGE. |
jonathonfletcher | 0:5f46ebd8588e | 33 | *---------------------------------------------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 34 | |
jonathonfletcher | 0:5f46ebd8588e | 35 | #include "rt_TypeDef.h" |
jonathonfletcher | 0:5f46ebd8588e | 36 | #include "RTX_Config.h" |
jonathonfletcher | 0:5f46ebd8588e | 37 | #include "rt_Task.h" |
jonathonfletcher | 0:5f46ebd8588e | 38 | #include "rt_System.h" |
jonathonfletcher | 0:5f46ebd8588e | 39 | #include "rt_Event.h" |
jonathonfletcher | 0:5f46ebd8588e | 40 | #include "rt_List.h" |
jonathonfletcher | 0:5f46ebd8588e | 41 | #include "rt_Mailbox.h" |
jonathonfletcher | 0:5f46ebd8588e | 42 | #include "rt_Semaphore.h" |
jonathonfletcher | 0:5f46ebd8588e | 43 | #include "rt_Time.h" |
jonathonfletcher | 0:5f46ebd8588e | 44 | #include "rt_Robin.h" |
jonathonfletcher | 0:5f46ebd8588e | 45 | #include "rt_HAL_CM.h" |
jonathonfletcher | 0:5f46ebd8588e | 46 | |
jonathonfletcher | 0:5f46ebd8588e | 47 | /*---------------------------------------------------------------------------- |
jonathonfletcher | 0:5f46ebd8588e | 48 | * Global Variables |
jonathonfletcher | 0:5f46ebd8588e | 49 | *---------------------------------------------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 50 | |
jonathonfletcher | 0:5f46ebd8588e | 51 | int os_tick_irqn; |
jonathonfletcher | 0:5f46ebd8588e | 52 | |
jonathonfletcher | 0:5f46ebd8588e | 53 | /*---------------------------------------------------------------------------- |
jonathonfletcher | 0:5f46ebd8588e | 54 | * Local Variables |
jonathonfletcher | 0:5f46ebd8588e | 55 | *---------------------------------------------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 56 | |
jonathonfletcher | 0:5f46ebd8588e | 57 | static volatile BIT os_lock; |
jonathonfletcher | 0:5f46ebd8588e | 58 | static volatile BIT os_psh_flag; |
jonathonfletcher | 0:5f46ebd8588e | 59 | static U8 pend_flags; |
jonathonfletcher | 0:5f46ebd8588e | 60 | |
jonathonfletcher | 0:5f46ebd8588e | 61 | /*---------------------------------------------------------------------------- |
jonathonfletcher | 0:5f46ebd8588e | 62 | * Global Functions |
jonathonfletcher | 0:5f46ebd8588e | 63 | *---------------------------------------------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 64 | |
jonathonfletcher | 0:5f46ebd8588e | 65 | #if defined (__CC_ARM) |
jonathonfletcher | 0:5f46ebd8588e | 66 | __asm void $$RTX$$version (void) { |
jonathonfletcher | 0:5f46ebd8588e | 67 | /* Export a version number symbol for a version control. */ |
jonathonfletcher | 0:5f46ebd8588e | 68 | |
jonathonfletcher | 0:5f46ebd8588e | 69 | EXPORT __RL_RTX_VER |
jonathonfletcher | 0:5f46ebd8588e | 70 | |
jonathonfletcher | 0:5f46ebd8588e | 71 | __RL_RTX_VER EQU 0x450 |
jonathonfletcher | 0:5f46ebd8588e | 72 | } |
jonathonfletcher | 0:5f46ebd8588e | 73 | #endif |
jonathonfletcher | 0:5f46ebd8588e | 74 | |
jonathonfletcher | 0:5f46ebd8588e | 75 | |
jonathonfletcher | 0:5f46ebd8588e | 76 | /*--------------------------- rt_suspend ------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 77 | U32 rt_suspend (void) { |
jonathonfletcher | 0:5f46ebd8588e | 78 | /* Suspend OS scheduler */ |
jonathonfletcher | 0:5f46ebd8588e | 79 | U32 delta = 0xFFFF; |
jonathonfletcher | 0:5f46ebd8588e | 80 | |
jonathonfletcher | 0:5f46ebd8588e | 81 | rt_tsk_lock(); |
jonathonfletcher | 0:5f46ebd8588e | 82 | |
jonathonfletcher | 0:5f46ebd8588e | 83 | if (os_dly.p_dlnk) { |
jonathonfletcher | 0:5f46ebd8588e | 84 | delta = os_dly.delta_time; |
jonathonfletcher | 0:5f46ebd8588e | 85 | } |
jonathonfletcher | 0:5f46ebd8588e | 86 | |
jonathonfletcher | 0:5f46ebd8588e | 87 | return (delta); |
jonathonfletcher | 0:5f46ebd8588e | 88 | } |
jonathonfletcher | 0:5f46ebd8588e | 89 | |
jonathonfletcher | 0:5f46ebd8588e | 90 | |
jonathonfletcher | 0:5f46ebd8588e | 91 | /*--------------------------- rt_resume -------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 92 | void rt_resume (U32 sleep_time) { |
jonathonfletcher | 0:5f46ebd8588e | 93 | /* Resume OS scheduler after suspend */ |
jonathonfletcher | 0:5f46ebd8588e | 94 | P_TCB next; |
jonathonfletcher | 0:5f46ebd8588e | 95 | U32 delta; |
jonathonfletcher | 0:5f46ebd8588e | 96 | |
jonathonfletcher | 0:5f46ebd8588e | 97 | os_tsk.tsk_run->state = READY; |
jonathonfletcher | 0:5f46ebd8588e | 98 | rt_put_rdy_first (os_tsk.tsk_run); |
jonathonfletcher | 0:5f46ebd8588e | 99 | |
jonathonfletcher | 0:5f46ebd8588e | 100 | os_robin.task = NULL; |
jonathonfletcher | 0:5f46ebd8588e | 101 | |
jonathonfletcher | 0:5f46ebd8588e | 102 | /* Update delays. */ |
jonathonfletcher | 0:5f46ebd8588e | 103 | if (os_dly.p_dlnk) { |
jonathonfletcher | 0:5f46ebd8588e | 104 | delta = sleep_time; |
jonathonfletcher | 0:5f46ebd8588e | 105 | if (delta >= os_dly.delta_time) { |
jonathonfletcher | 0:5f46ebd8588e | 106 | delta -= os_dly.delta_time; |
jonathonfletcher | 0:5f46ebd8588e | 107 | os_time += os_dly.delta_time; |
jonathonfletcher | 0:5f46ebd8588e | 108 | os_dly.delta_time = 1; |
jonathonfletcher | 0:5f46ebd8588e | 109 | while (os_dly.p_dlnk) { |
jonathonfletcher | 0:5f46ebd8588e | 110 | rt_dec_dly(); |
jonathonfletcher | 0:5f46ebd8588e | 111 | if (delta == 0) break; |
jonathonfletcher | 0:5f46ebd8588e | 112 | delta--; |
jonathonfletcher | 0:5f46ebd8588e | 113 | os_time++; |
jonathonfletcher | 0:5f46ebd8588e | 114 | } |
jonathonfletcher | 0:5f46ebd8588e | 115 | } else { |
jonathonfletcher | 0:5f46ebd8588e | 116 | os_time += delta; |
jonathonfletcher | 0:5f46ebd8588e | 117 | os_dly.delta_time -= delta; |
jonathonfletcher | 0:5f46ebd8588e | 118 | } |
jonathonfletcher | 0:5f46ebd8588e | 119 | } else { |
jonathonfletcher | 0:5f46ebd8588e | 120 | os_time += sleep_time; |
jonathonfletcher | 0:5f46ebd8588e | 121 | } |
jonathonfletcher | 0:5f46ebd8588e | 122 | |
jonathonfletcher | 0:5f46ebd8588e | 123 | /* Switch back to highest ready task */ |
jonathonfletcher | 0:5f46ebd8588e | 124 | next = rt_get_first (&os_rdy); |
jonathonfletcher | 0:5f46ebd8588e | 125 | rt_switch_req (next); |
jonathonfletcher | 0:5f46ebd8588e | 126 | |
jonathonfletcher | 0:5f46ebd8588e | 127 | rt_tsk_unlock(); |
jonathonfletcher | 0:5f46ebd8588e | 128 | } |
jonathonfletcher | 0:5f46ebd8588e | 129 | |
jonathonfletcher | 0:5f46ebd8588e | 130 | |
jonathonfletcher | 0:5f46ebd8588e | 131 | /*--------------------------- rt_tsk_lock -----------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 132 | |
jonathonfletcher | 0:5f46ebd8588e | 133 | void rt_tsk_lock (void) { |
jonathonfletcher | 0:5f46ebd8588e | 134 | /* Prevent task switching by locking out scheduler */ |
jonathonfletcher | 0:5f46ebd8588e | 135 | if (os_tick_irqn < 0) { |
jonathonfletcher | 0:5f46ebd8588e | 136 | OS_LOCK(); |
jonathonfletcher | 0:5f46ebd8588e | 137 | os_lock = __TRUE; |
jonathonfletcher | 0:5f46ebd8588e | 138 | OS_UNPEND (&pend_flags); |
jonathonfletcher | 0:5f46ebd8588e | 139 | } else { |
jonathonfletcher | 0:5f46ebd8588e | 140 | OS_X_LOCK(os_tick_irqn); |
jonathonfletcher | 0:5f46ebd8588e | 141 | os_lock = __TRUE; |
jonathonfletcher | 0:5f46ebd8588e | 142 | OS_X_UNPEND (&pend_flags); |
jonathonfletcher | 0:5f46ebd8588e | 143 | } |
jonathonfletcher | 0:5f46ebd8588e | 144 | } |
jonathonfletcher | 0:5f46ebd8588e | 145 | |
jonathonfletcher | 0:5f46ebd8588e | 146 | |
jonathonfletcher | 0:5f46ebd8588e | 147 | /*--------------------------- rt_tsk_unlock ---------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 148 | |
jonathonfletcher | 0:5f46ebd8588e | 149 | void rt_tsk_unlock (void) { |
jonathonfletcher | 0:5f46ebd8588e | 150 | /* Unlock scheduler and re-enable task switching */ |
jonathonfletcher | 0:5f46ebd8588e | 151 | if (os_tick_irqn < 0) { |
jonathonfletcher | 0:5f46ebd8588e | 152 | OS_UNLOCK(); |
jonathonfletcher | 0:5f46ebd8588e | 153 | os_lock = __FALSE; |
jonathonfletcher | 0:5f46ebd8588e | 154 | OS_PEND (pend_flags, os_psh_flag); |
jonathonfletcher | 0:5f46ebd8588e | 155 | os_psh_flag = __FALSE; |
jonathonfletcher | 0:5f46ebd8588e | 156 | } else { |
jonathonfletcher | 0:5f46ebd8588e | 157 | OS_X_UNLOCK(os_tick_irqn); |
jonathonfletcher | 0:5f46ebd8588e | 158 | os_lock = __FALSE; |
jonathonfletcher | 0:5f46ebd8588e | 159 | OS_X_PEND (pend_flags, os_psh_flag); |
jonathonfletcher | 0:5f46ebd8588e | 160 | os_psh_flag = __FALSE; |
jonathonfletcher | 0:5f46ebd8588e | 161 | } |
jonathonfletcher | 0:5f46ebd8588e | 162 | } |
jonathonfletcher | 0:5f46ebd8588e | 163 | |
jonathonfletcher | 0:5f46ebd8588e | 164 | |
jonathonfletcher | 0:5f46ebd8588e | 165 | /*--------------------------- rt_psh_req ------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 166 | |
jonathonfletcher | 0:5f46ebd8588e | 167 | void rt_psh_req (void) { |
jonathonfletcher | 0:5f46ebd8588e | 168 | /* Initiate a post service handling request if required. */ |
jonathonfletcher | 0:5f46ebd8588e | 169 | if (os_lock == __FALSE) { |
jonathonfletcher | 0:5f46ebd8588e | 170 | OS_PEND_IRQ (); |
jonathonfletcher | 0:5f46ebd8588e | 171 | } |
jonathonfletcher | 0:5f46ebd8588e | 172 | else { |
jonathonfletcher | 0:5f46ebd8588e | 173 | os_psh_flag = __TRUE; |
jonathonfletcher | 0:5f46ebd8588e | 174 | } |
jonathonfletcher | 0:5f46ebd8588e | 175 | } |
jonathonfletcher | 0:5f46ebd8588e | 176 | |
jonathonfletcher | 0:5f46ebd8588e | 177 | |
jonathonfletcher | 0:5f46ebd8588e | 178 | /*--------------------------- rt_pop_req ------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 179 | |
jonathonfletcher | 0:5f46ebd8588e | 180 | void rt_pop_req (void) { |
jonathonfletcher | 0:5f46ebd8588e | 181 | /* Process an ISR post service requests. */ |
jonathonfletcher | 0:5f46ebd8588e | 182 | struct OS_XCB *p_CB; |
jonathonfletcher | 0:5f46ebd8588e | 183 | P_TCB next; |
jonathonfletcher | 0:5f46ebd8588e | 184 | U32 idx; |
jonathonfletcher | 0:5f46ebd8588e | 185 | |
jonathonfletcher | 0:5f46ebd8588e | 186 | os_tsk.tsk_run->state = READY; |
jonathonfletcher | 0:5f46ebd8588e | 187 | rt_put_rdy_first (os_tsk.tsk_run); |
jonathonfletcher | 0:5f46ebd8588e | 188 | |
jonathonfletcher | 0:5f46ebd8588e | 189 | idx = os_psq->last; |
jonathonfletcher | 0:5f46ebd8588e | 190 | while (os_psq->count) { |
jonathonfletcher | 0:5f46ebd8588e | 191 | p_CB = os_psq->q[idx].id; |
jonathonfletcher | 0:5f46ebd8588e | 192 | if (p_CB->cb_type == TCB) { |
jonathonfletcher | 0:5f46ebd8588e | 193 | /* Is of TCB type */ |
jonathonfletcher | 0:5f46ebd8588e | 194 | rt_evt_psh ((P_TCB)p_CB, (U16)os_psq->q[idx].arg); |
jonathonfletcher | 0:5f46ebd8588e | 195 | } |
jonathonfletcher | 0:5f46ebd8588e | 196 | else if (p_CB->cb_type == MCB) { |
jonathonfletcher | 0:5f46ebd8588e | 197 | /* Is of MCB type */ |
jonathonfletcher | 0:5f46ebd8588e | 198 | rt_mbx_psh ((P_MCB)p_CB, (void *)os_psq->q[idx].arg); |
jonathonfletcher | 0:5f46ebd8588e | 199 | } |
jonathonfletcher | 0:5f46ebd8588e | 200 | else { |
jonathonfletcher | 0:5f46ebd8588e | 201 | /* Must be of SCB type */ |
jonathonfletcher | 0:5f46ebd8588e | 202 | rt_sem_psh ((P_SCB)p_CB); |
jonathonfletcher | 0:5f46ebd8588e | 203 | } |
jonathonfletcher | 0:5f46ebd8588e | 204 | if (++idx == os_psq->size) idx = 0; |
jonathonfletcher | 0:5f46ebd8588e | 205 | rt_dec (&os_psq->count); |
jonathonfletcher | 0:5f46ebd8588e | 206 | } |
jonathonfletcher | 0:5f46ebd8588e | 207 | os_psq->last = idx; |
jonathonfletcher | 0:5f46ebd8588e | 208 | |
jonathonfletcher | 0:5f46ebd8588e | 209 | next = rt_get_first (&os_rdy); |
jonathonfletcher | 0:5f46ebd8588e | 210 | rt_switch_req (next); |
jonathonfletcher | 0:5f46ebd8588e | 211 | } |
jonathonfletcher | 0:5f46ebd8588e | 212 | |
jonathonfletcher | 0:5f46ebd8588e | 213 | |
jonathonfletcher | 0:5f46ebd8588e | 214 | /*--------------------------- os_tick_init ----------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 215 | |
jonathonfletcher | 0:5f46ebd8588e | 216 | __weak int os_tick_init (void) { |
jonathonfletcher | 0:5f46ebd8588e | 217 | /* Initialize SysTick timer as system tick timer. */ |
jonathonfletcher | 0:5f46ebd8588e | 218 | rt_systick_init (); |
jonathonfletcher | 0:5f46ebd8588e | 219 | return (-1); /* Return IRQ number of SysTick timer */ |
jonathonfletcher | 0:5f46ebd8588e | 220 | } |
jonathonfletcher | 0:5f46ebd8588e | 221 | |
jonathonfletcher | 0:5f46ebd8588e | 222 | |
jonathonfletcher | 0:5f46ebd8588e | 223 | /*--------------------------- os_tick_irqack --------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 224 | |
jonathonfletcher | 0:5f46ebd8588e | 225 | __weak void os_tick_irqack (void) { |
jonathonfletcher | 0:5f46ebd8588e | 226 | /* Acknowledge timer interrupt. */ |
jonathonfletcher | 0:5f46ebd8588e | 227 | } |
jonathonfletcher | 0:5f46ebd8588e | 228 | |
jonathonfletcher | 0:5f46ebd8588e | 229 | |
jonathonfletcher | 0:5f46ebd8588e | 230 | /*--------------------------- rt_systick ------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 231 | |
jonathonfletcher | 0:5f46ebd8588e | 232 | extern void sysTimerTick(void); |
jonathonfletcher | 0:5f46ebd8588e | 233 | |
jonathonfletcher | 0:5f46ebd8588e | 234 | void rt_systick (void) { |
jonathonfletcher | 0:5f46ebd8588e | 235 | /* Check for system clock update, suspend running task. */ |
jonathonfletcher | 0:5f46ebd8588e | 236 | P_TCB next; |
jonathonfletcher | 0:5f46ebd8588e | 237 | |
jonathonfletcher | 0:5f46ebd8588e | 238 | os_tsk.tsk_run->state = READY; |
jonathonfletcher | 0:5f46ebd8588e | 239 | rt_put_rdy_first (os_tsk.tsk_run); |
jonathonfletcher | 0:5f46ebd8588e | 240 | |
jonathonfletcher | 0:5f46ebd8588e | 241 | /* Check Round Robin timeout. */ |
jonathonfletcher | 0:5f46ebd8588e | 242 | rt_chk_robin (); |
jonathonfletcher | 0:5f46ebd8588e | 243 | |
jonathonfletcher | 0:5f46ebd8588e | 244 | /* Update delays. */ |
jonathonfletcher | 0:5f46ebd8588e | 245 | os_time++; |
jonathonfletcher | 0:5f46ebd8588e | 246 | rt_dec_dly (); |
jonathonfletcher | 0:5f46ebd8588e | 247 | |
jonathonfletcher | 0:5f46ebd8588e | 248 | /* Check the user timers. */ |
jonathonfletcher | 0:5f46ebd8588e | 249 | sysTimerTick(); |
jonathonfletcher | 0:5f46ebd8588e | 250 | |
jonathonfletcher | 0:5f46ebd8588e | 251 | /* Switch back to highest ready task */ |
jonathonfletcher | 0:5f46ebd8588e | 252 | next = rt_get_first (&os_rdy); |
jonathonfletcher | 0:5f46ebd8588e | 253 | rt_switch_req (next); |
jonathonfletcher | 0:5f46ebd8588e | 254 | } |
jonathonfletcher | 0:5f46ebd8588e | 255 | |
jonathonfletcher | 0:5f46ebd8588e | 256 | /*--------------------------- rt_stk_check ----------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 257 | #ifdef THREAD_STACK_DIAGNOSTIC |
jonathonfletcher | 0:5f46ebd8588e | 258 | typedef struct stack_boundaries_s { |
jonathonfletcher | 0:5f46ebd8588e | 259 | unsigned int top; |
jonathonfletcher | 0:5f46ebd8588e | 260 | unsigned int min; |
jonathonfletcher | 0:5f46ebd8588e | 261 | } stack_boundaries_t; |
jonathonfletcher | 0:5f46ebd8588e | 262 | stack_boundaries_t stack_boundaries[256]; |
jonathonfletcher | 0:5f46ebd8588e | 263 | #endif |
jonathonfletcher | 0:5f46ebd8588e | 264 | |
jonathonfletcher | 0:5f46ebd8588e | 265 | __weak void rt_stk_check (void) { |
jonathonfletcher | 0:5f46ebd8588e | 266 | #ifdef THREAD_STACK_DIAGNOSTIC |
jonathonfletcher | 0:5f46ebd8588e | 267 | stack_boundaries_t* sb = &stack_boundaries[os_tsk.run->task_id]; |
jonathonfletcher | 0:5f46ebd8588e | 268 | if (sb->top == 0) { |
jonathonfletcher | 0:5f46ebd8588e | 269 | sb->top = (unsigned int)os_tsk.run->stack + os_tsk.run->priv_stack; |
jonathonfletcher | 0:5f46ebd8588e | 270 | } |
jonathonfletcher | 0:5f46ebd8588e | 271 | if ((sb->min == 0) || (sb->min < os_tsk.run->tsk_stack)) |
jonathonfletcher | 0:5f46ebd8588e | 272 | sb->min = os_tsk.run->tsk_stack; |
jonathonfletcher | 0:5f46ebd8588e | 273 | #endif |
jonathonfletcher | 0:5f46ebd8588e | 274 | /* Check for stack overflow */ |
jonathonfletcher | 0:5f46ebd8588e | 275 | if (os_tsk.tsk_run->task_id == 0x01) { |
jonathonfletcher | 0:5f46ebd8588e | 276 | // TODO: For the main thread the check should be done against the heap pointer |
jonathonfletcher | 0:5f46ebd8588e | 277 | } else { |
jonathonfletcher | 0:5f46ebd8588e | 278 | if ((os_tsk.tsk_run->tsk_stack < (U32)os_tsk.tsk_run->stack) || |
jonathonfletcher | 0:5f46ebd8588e | 279 | (os_tsk.tsk_run->stack[0] != MAGIC_WORD)) { |
jonathonfletcher | 0:5f46ebd8588e | 280 | os_error (OS_ERR_STK_OVF); |
jonathonfletcher | 0:5f46ebd8588e | 281 | } |
jonathonfletcher | 0:5f46ebd8588e | 282 | } |
jonathonfletcher | 0:5f46ebd8588e | 283 | } |
jonathonfletcher | 0:5f46ebd8588e | 284 | |
jonathonfletcher | 0:5f46ebd8588e | 285 | /*---------------------------------------------------------------------------- |
jonathonfletcher | 0:5f46ebd8588e | 286 | * end of file |
jonathonfletcher | 0:5f46ebd8588e | 287 | *---------------------------------------------------------------------------*/ |
jonathonfletcher | 0:5f46ebd8588e | 288 |