Annotated Report
00009928 <_CORE_mutex_Seize_interrupt_trylock>:
{
Thread_Control *executing;
/* disabled when you get here */
executing = _Thread_Executing;
9928: e59f3120 ldr r3, [pc, #288] ; 9a50 <_CORE_mutex_Seize_interrupt_trylock+0x128>
992c: e5933000 ldr r3, [r3]
executing->Wait.return_code = CORE_MUTEX_STATUS_SUCCESSFUL;
9930: e3a02000 mov r2, #0
9934: e5832034 str r2, [r3, #52] ; 0x34
if ( !_CORE_mutex_Is_locked( the_mutex ) ) {
9938: e590c050 ldr ip, [r0, #80] ; 0x50
993c: e15c0002 cmp ip, r2
#if defined(__RTEMS_DO_NOT_INLINE_CORE_MUTEX_SEIZE__)
int _CORE_mutex_Seize_interrupt_trylock(
CORE_mutex_Control *the_mutex,
ISR_Level *level_p
)
{
9940: e52de004 push {lr} ; (str lr, [sp, #-4]!)
9944: 0a00002c beq 99fc <_CORE_mutex_Seize_interrupt_trylock+0xd4>
the_mutex->lock = CORE_MUTEX_LOCKED;
9948: e5802050 str r2, [r0, #80] ; 0x50
*/
RTEMS_INLINE_ROUTINE bool _CORE_mutex_Is_inherit_priority(
CORE_mutex_Attributes *the_attribute
)
{
return the_attribute->discipline == CORE_MUTEX_DISCIPLINES_PRIORITY_INHERIT;
994c: e5902048 ldr r2, [r0, #72] ; 0x48
executing = _Thread_Executing;
executing->Wait.return_code = CORE_MUTEX_STATUS_SUCCESSFUL;
if ( !_CORE_mutex_Is_locked( the_mutex ) ) {
the_mutex->lock = CORE_MUTEX_LOCKED;
the_mutex->holder = executing;
the_mutex->holder_id = executing->Object.id;
9950: e593c008 ldr ip, [r3, #8]
the_mutex->nest_count = 1;
if ( _CORE_mutex_Is_inherit_priority( &the_mutex->Attributes ) ||
9954: e3520002 cmp r2, #2
executing = _Thread_Executing;
executing->Wait.return_code = CORE_MUTEX_STATUS_SUCCESSFUL;
if ( !_CORE_mutex_Is_locked( the_mutex ) ) {
the_mutex->lock = CORE_MUTEX_LOCKED;
the_mutex->holder = executing;
the_mutex->holder_id = executing->Object.id;
9958: e580c060 str ip, [r0, #96] ; 0x60
the_mutex->nest_count = 1;
995c: e3a0c001 mov ip, #1
9960: e580c054 str ip, [r0, #84] ; 0x54
executing = _Thread_Executing;
executing->Wait.return_code = CORE_MUTEX_STATUS_SUCCESSFUL;
if ( !_CORE_mutex_Is_locked( the_mutex ) ) {
the_mutex->lock = CORE_MUTEX_LOCKED;
the_mutex->holder = executing;
9964: e580305c str r3, [r0, #92] ; 0x5c
the_mutex->holder_id = executing->Object.id;
the_mutex->nest_count = 1;
if ( _CORE_mutex_Is_inherit_priority( &the_mutex->Attributes ) ||
9968: 0a000001 beq 9974 <_CORE_mutex_Seize_interrupt_trylock+0x4c>
996c: e3520003 cmp r2, #3
9970: 1a000004 bne 9988 <_CORE_mutex_Seize_interrupt_trylock+0x60>
_Chain_Prepend_unprotected( &executing->lock_mutex,
&the_mutex->queue.lock_queue );
the_mutex->queue.priority_before = executing->current_priority;
#endif
executing->resource_count++;
9974: e593c01c ldr ip, [r3, #28]
}
if ( !_CORE_mutex_Is_priority_ceiling( &the_mutex->Attributes ) ) {
9978: e3520003 cmp r2, #3
_Chain_Prepend_unprotected( &executing->lock_mutex,
&the_mutex->queue.lock_queue );
the_mutex->queue.priority_before = executing->current_priority;
#endif
executing->resource_count++;
997c: e28c2001 add r2, ip, #1
9980: e583201c str r2, [r3, #28]
}
if ( !_CORE_mutex_Is_priority_ceiling( &the_mutex->Attributes ) ) {
9984: 0a000000 beq 998c <_CORE_mutex_Seize_interrupt_trylock+0x64>
_ISR_Enable( *level_p );
9988: ea00002a b 9a38 <_CORE_mutex_Seize_interrupt_trylock+0x110>
*/
{
Priority_Control ceiling;
Priority_Control current;
ceiling = the_mutex->Attributes.priority_ceiling;
998c: e590204c ldr r2, [r0, #76] ; 0x4c
current = executing->current_priority;
9990: e593c014 ldr ip, [r3, #20]
if ( current == ceiling ) {
9994: e15c0002 cmp ip, r2
9998: 1a000000 bne 99a0 <_CORE_mutex_Seize_interrupt_trylock+0x78>
_ISR_Enable( *level_p );
999c: ea000025 b 9a38 <_CORE_mutex_Seize_interrupt_trylock+0x110>
return 0;
}
if ( current > ceiling ) {
99a0: 9a00000b bls 99d4 <_CORE_mutex_Seize_interrupt_trylock+0xac>
rtems_fatal_error_occurred( 99 );
}
}
#endif
_Thread_Dispatch_disable_level += 1;
99a4: e59f30a8 ldr r3, [pc, #168] ; 9a54 <_CORE_mutex_Seize_interrupt_trylock+0x12c>
99a8: e5932000 ldr r2, [r3]
99ac: e2822001 add r2, r2, #1
99b0: e5832000 str r2, [r3]
99b4: e5913000 ldr r3, [r1]
99b8: e129f003 msr CPSR_fc, r3
_Thread_Disable_dispatch();
_ISR_Enable( *level_p );
_Thread_Change_priority(
99bc: e3a02000 mov r2, #0
99c0: e590104c ldr r1, [r0, #76] ; 0x4c
99c4: e590005c ldr r0, [r0, #92] ; 0x5c
99c8: ebfff278 bl 63b0 <_Thread_Change_priority>
the_mutex->holder,
the_mutex->Attributes.priority_ceiling,
false
);
_Thread_Enable_dispatch();
99cc: ebfff3d8 bl 6934 <_Thread_Enable_dispatch>
99d0: ea00001a b 9a40 <_CORE_mutex_Seize_interrupt_trylock+0x118>
return 0;
}
/* if ( current < ceiling ) */ {
executing->Wait.return_code = CORE_MUTEX_STATUS_CEILING_VIOLATED;
99d4: e3a02006 mov r2, #6
99d8: e5832034 str r2, [r3, #52] ; 0x34
the_mutex->lock = CORE_MUTEX_UNLOCKED;
the_mutex->nest_count = 0; /* undo locking above */
99dc: e3a02000 mov r2, #0
99e0: e5802054 str r2, [r0, #84] ; 0x54
_Thread_Enable_dispatch();
return 0;
}
/* if ( current < ceiling ) */ {
executing->Wait.return_code = CORE_MUTEX_STATUS_CEILING_VIOLATED;
the_mutex->lock = CORE_MUTEX_UNLOCKED;
99e4: e2822001 add r2, r2, #1
99e8: e5802050 str r2, [r0, #80] ; 0x50
the_mutex->nest_count = 0; /* undo locking above */
executing->resource_count--; /* undo locking above */
99ec: e593201c ldr r2, [r3, #28]
99f0: e2422001 sub r2, r2, #1
99f4: e583201c str r2, [r3, #28]
_ISR_Enable( *level_p );
99f8: ea00000e b 9a38 <_CORE_mutex_Seize_interrupt_trylock+0x110>
/*
* At this point, we know the mutex was not available. If this thread
* is the thread that has locked the mutex, let's see if we are allowed
* to nest access.
*/
if ( _Thread_Is_executing( the_mutex->holder ) ) {
99fc: e590205c ldr r2, [r0, #92] ; 0x5c
9a00: e1520003 cmp r2, r3
9a04: 1a00000f bne 9a48 <_CORE_mutex_Seize_interrupt_trylock+0x120>
switch ( the_mutex->Attributes.lock_nesting_behavior ) {
9a08: e5903040 ldr r3, [r0, #64] ; 0x40
9a0c: e3530000 cmp r3, #0
9a10: 0a000002 beq 9a20 <_CORE_mutex_Seize_interrupt_trylock+0xf8>
9a14: e3530001 cmp r3, #1
9a18: 1a00000a bne 9a48 <_CORE_mutex_Seize_interrupt_trylock+0x120>
9a1c: ea000003 b 9a30 <_CORE_mutex_Seize_interrupt_trylock+0x108><== NOT EXECUTED
case CORE_MUTEX_NESTING_ACQUIRES:
the_mutex->nest_count++;
9a20: e5903054 ldr r3, [r0, #84] ; 0x54
9a24: e2833001 add r3, r3, #1
9a28: e5803054 str r3, [r0, #84] ; 0x54
_ISR_Enable( *level_p );
9a2c: ea000001 b 9a38 <_CORE_mutex_Seize_interrupt_trylock+0x110>
return 0;
case CORE_MUTEX_NESTING_IS_ERROR:
executing->Wait.return_code = CORE_MUTEX_STATUS_NESTING_NOT_ALLOWED;
9a30: e3a03002 mov r3, #2 <== NOT EXECUTED
9a34: e5823034 str r3, [r2, #52] ; 0x34 <== NOT EXECUTED
9a38: e5913000 ldr r3, [r1]
9a3c: e129f003 msr CPSR_fc, r3
9a40: e3a00000 mov r0, #0
9a44: e49df004 pop {pc} ; (ldr pc, [sp], #4)
9a48: e3a00001 mov r0, #1
return _CORE_mutex_Seize_interrupt_trylock_body( the_mutex, level_p ); }
9a4c: e49df004 pop {pc} ; (ldr pc, [sp], #4)
00006e90 <_Thread_queue_Enqueue_priority>:
Thread_blocking_operation_States _Thread_queue_Enqueue_priority (
Thread_queue_Control *the_thread_queue,
Thread_Control *the_thread,
ISR_Level *level_p
)
{
6e90: e92d45f0 push {r4, r5, r6, r7, r8, sl, lr}
Priority_Control priority;
States_Control block_state;
_Chain_Initialize_empty( &the_thread->Wait.Block2n );
priority = the_thread->current_priority;
6e94: e5913014 ldr r3, [r1, #20]
*/
RTEMS_INLINE_ROUTINE void _Chain_Initialize_empty(
Chain_Control *the_chain
)
{
the_chain->first = _Chain_Tail(the_chain);
6e98: e281503c add r5, r1, #60 ; 0x3c
6e9c: e5815038 str r5, [r1, #56] ; 0x38
the_chain->permanent_null = NULL;
6ea0: e3a05000 mov r5, #0
the_chain->last = _Chain_Head(the_chain);
6ea4: e281c038 add ip, r1, #56 ; 0x38
header_index = _Thread_queue_Header_number( priority );
header = &the_thread_queue->Queues.Priority[ header_index ];
block_state = the_thread_queue->state;
if ( _Thread_queue_Is_reverse_search( priority ) )
6ea8: e3130020 tst r3, #32
_Chain_Initialize_empty( &the_thread->Wait.Block2n );
priority = the_thread->current_priority;
header_index = _Thread_queue_Header_number( priority );
header = &the_thread_queue->Queues.Priority[ header_index ];
6eac: e1a04323 lsr r4, r3, #6
RTEMS_INLINE_ROUTINE void _Chain_Initialize_empty(
Chain_Control *the_chain
)
{
the_chain->first = _Chain_Tail(the_chain);
the_chain->permanent_null = NULL;
6eb0: e581503c str r5, [r1, #60] ; 0x3c
6eb4: e285500c add r5, r5, #12
the_chain->last = _Chain_Head(the_chain);
6eb8: e581c040 str ip, [r1, #64] ; 0x40
block_state = the_thread_queue->state;
6ebc: e5907038 ldr r7, [r0, #56] ; 0x38
_Chain_Initialize_empty( &the_thread->Wait.Block2n );
priority = the_thread->current_priority;
header_index = _Thread_queue_Header_number( priority );
header = &the_thread_queue->Queues.Priority[ header_index ];
6ec0: e02c0495 mla ip, r5, r4, r0
the_thread->Wait.queue = the_thread_queue;
_ISR_Enable( level );
return THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED;
restart_reverse_search:
search_priority = PRIORITY_MAXIMUM + 1;
6ec4: 159f8154 ldrne r8, [pc, #340] ; 7020 <_Thread_queue_Enqueue_priority+0x190>
priority = the_thread->current_priority;
header_index = _Thread_queue_Header_number( priority );
header = &the_thread_queue->Queues.Priority[ header_index ];
block_state = the_thread_queue->state;
if ( _Thread_queue_Is_reverse_search( priority ) )
6ec8: 1a000023 bne 6f5c <_Thread_queue_Enqueue_priority+0xcc>
*/
RTEMS_INLINE_ROUTINE Chain_Node *_Chain_Tail(
Chain_Control *the_chain
)
{
return (Chain_Node *) &the_chain->permanent_null;
6ecc: e28c8004 add r8, ip, #4
static inline uint32_t arm_interrupt_disable( void )
{
uint32_t arm_switch_reg;
uint32_t level;
asm volatile (
6ed0: e10f5000 mrs r5, CPSR
6ed4: e3854080 orr r4, r5, #128 ; 0x80
6ed8: e129f004 msr CPSR_fc, r4
goto restart_reverse_search;
restart_forward_search:
search_priority = PRIORITY_MINIMUM - 1;
_ISR_Disable( level );
search_thread = (Thread_Control *) header->first;
6edc: e3e06000 mvn r6, #0
6ee0: e59c4000 ldr r4, [ip]
while ( !_Chain_Is_tail( header, (Chain_Node *)search_thread ) ) {
6ee4: ea00000b b 6f18 <_Thread_queue_Enqueue_priority+0x88>
search_priority = search_thread->current_priority;
6ee8: e5946014 ldr r6, [r4, #20]
if ( priority <= search_priority )
6eec: e1530006 cmp r3, r6
6ef0: 9a00000a bls 6f20 <_Thread_queue_Enqueue_priority+0x90>
static inline void arm_interrupt_flash( uint32_t level )
{
uint32_t arm_switch_reg;
asm volatile (
6ef4: e10fa000 mrs sl, CPSR
6ef8: e129f005 msr CPSR_fc, r5
6efc: e129f00a msr CPSR_fc, sl
search_priority = search_thread->current_priority;
if ( priority <= search_priority )
break;
#endif
_ISR_Flash( level );
if ( !_States_Are_set( search_thread->current_state, block_state) ) {
6f00: e594a010 ldr sl, [r4, #16]
6f04: e117000a tst r7, sl
6f08: 1a000001 bne 6f14 <_Thread_queue_Enqueue_priority+0x84>
static inline void arm_interrupt_enable( uint32_t level )
{
ARM_SWITCH_REGISTERS;
asm volatile (
6f0c: e129f005 msr CPSR_fc, r5 <== NOT EXECUTED
6f10: eaffffee b 6ed0 <_Thread_queue_Enqueue_priority+0x40> <== NOT EXECUTED
_ISR_Enable( level );
goto restart_forward_search;
}
search_thread =
(Thread_Control *)search_thread->Object.Node.next;
6f14: e5944000 ldr r4, [r4]
restart_forward_search:
search_priority = PRIORITY_MINIMUM - 1;
_ISR_Disable( level );
search_thread = (Thread_Control *) header->first;
while ( !_Chain_Is_tail( header, (Chain_Node *)search_thread ) ) {
6f18: e1540008 cmp r4, r8
6f1c: 1afffff1 bne 6ee8 <_Thread_queue_Enqueue_priority+0x58>
}
search_thread =
(Thread_Control *)search_thread->Object.Node.next;
}
if ( the_thread_queue->sync_state !=
6f20: e590c030 ldr ip, [r0, #48] ; 0x30
6f24: e35c0001 cmp ip, #1
restart_forward_search:
search_priority = PRIORITY_MINIMUM - 1;
_ISR_Disable( level );
search_thread = (Thread_Control *) header->first;
while ( !_Chain_Is_tail( header, (Chain_Node *)search_thread ) ) {
6f28: e1a0c005 mov ip, r5
}
search_thread =
(Thread_Control *)search_thread->Object.Node.next;
}
if ( the_thread_queue->sync_state !=
6f2c: 1a000038 bne 7014 <_Thread_queue_Enqueue_priority+0x184>
THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED )
goto synchronize;
the_thread_queue->sync_state = THREAD_BLOCKING_OPERATION_SYNCHRONIZED;
if ( priority == search_priority )
6f30: e1530006 cmp r3, r6
if ( the_thread_queue->sync_state !=
THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED )
goto synchronize;
the_thread_queue->sync_state = THREAD_BLOCKING_OPERATION_SYNCHRONIZED;
6f34: e3a03000 mov r3, #0
6f38: e5803030 str r3, [r0, #48] ; 0x30
if ( priority == search_priority )
6f3c: 0a00002a beq 6fec <_Thread_queue_Enqueue_priority+0x15c>
goto equal_priority;
search_node = (Chain_Node *) search_thread;
previous_node = search_node->previous;
6f40: e5943004 ldr r3, [r4, #4]
the_node = (Chain_Node *) the_thread;
the_node->next = search_node;
6f44: e5814000 str r4, [r1]
the_node->previous = previous_node;
6f48: e5813004 str r3, [r1, #4]
previous_node->next = the_node; search_node->previous = the_node; the_thread->Wait.queue = the_thread_queue;
6f4c: e5810044 str r0, [r1, #68] ; 0x44
previous_node = search_node->previous;
the_node = (Chain_Node *) the_thread;
the_node->next = search_node;
the_node->previous = previous_node;
previous_node->next = the_node;
6f50: e5831000 str r1, [r3]
search_node->previous = the_node;
6f54: e5841004 str r1, [r4, #4]
the_thread->Wait.queue = the_thread_queue; _ISR_Enable( level );
6f58: ea000021 b 6fe4 <_Thread_queue_Enqueue_priority+0x154>
return THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED;
restart_reverse_search:
search_priority = PRIORITY_MAXIMUM + 1;
6f5c: e5d86000 ldrb r6, [r8]
6f60: e2866001 add r6, r6, #1
static inline uint32_t arm_interrupt_disable( void )
{
uint32_t arm_switch_reg;
uint32_t level;
asm volatile (
6f64: e10f5000 mrs r5, CPSR
6f68: e3854080 orr r4, r5, #128 ; 0x80
6f6c: e129f004 msr CPSR_fc, r4
_ISR_Disable( level );
search_thread = (Thread_Control *) header->last;
6f70: e59c4008 ldr r4, [ip, #8]
while ( !_Chain_Is_head( header, (Chain_Node *)search_thread ) ) {
6f74: ea00000b b 6fa8 <_Thread_queue_Enqueue_priority+0x118>
search_priority = search_thread->current_priority;
6f78: e5946014 ldr r6, [r4, #20]
if ( priority >= search_priority )
6f7c: e1530006 cmp r3, r6
6f80: 2a00000a bcs 6fb0 <_Thread_queue_Enqueue_priority+0x120>
static inline void arm_interrupt_flash( uint32_t level )
{
uint32_t arm_switch_reg;
asm volatile (
6f84: e10fa000 mrs sl, CPSR
6f88: e129f005 msr CPSR_fc, r5
6f8c: e129f00a msr CPSR_fc, sl
search_priority = search_thread->current_priority;
if ( priority >= search_priority )
break;
#endif
_ISR_Flash( level );
if ( !_States_Are_set( search_thread->current_state, block_state) ) {
6f90: e594a010 ldr sl, [r4, #16]
6f94: e117000a tst r7, sl
6f98: 1a000001 bne 6fa4 <_Thread_queue_Enqueue_priority+0x114>
static inline void arm_interrupt_enable( uint32_t level )
{
ARM_SWITCH_REGISTERS;
asm volatile (
6f9c: e129f005 msr CPSR_fc, r5
6fa0: eaffffed b 6f5c <_Thread_queue_Enqueue_priority+0xcc>
_ISR_Enable( level );
goto restart_reverse_search;
}
search_thread = (Thread_Control *)
6fa4: e5944004 ldr r4, [r4, #4]
restart_reverse_search:
search_priority = PRIORITY_MAXIMUM + 1;
_ISR_Disable( level );
search_thread = (Thread_Control *) header->last;
while ( !_Chain_Is_head( header, (Chain_Node *)search_thread ) ) {
6fa8: e154000c cmp r4, ip
6fac: 1afffff1 bne 6f78 <_Thread_queue_Enqueue_priority+0xe8>
}
search_thread = (Thread_Control *)
search_thread->Object.Node.previous;
}
if ( the_thread_queue->sync_state !=
6fb0: e590c030 ldr ip, [r0, #48] ; 0x30
6fb4: e35c0001 cmp ip, #1
restart_reverse_search:
search_priority = PRIORITY_MAXIMUM + 1;
_ISR_Disable( level );
search_thread = (Thread_Control *) header->last;
while ( !_Chain_Is_head( header, (Chain_Node *)search_thread ) ) {
6fb8: e1a0c005 mov ip, r5
}
search_thread = (Thread_Control *)
search_thread->Object.Node.previous;
}
if ( the_thread_queue->sync_state !=
6fbc: 1a000014 bne 7014 <_Thread_queue_Enqueue_priority+0x184>
THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED )
goto synchronize;
the_thread_queue->sync_state = THREAD_BLOCKING_OPERATION_SYNCHRONIZED;
if ( priority == search_priority )
6fc0: e1530006 cmp r3, r6
if ( the_thread_queue->sync_state !=
THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED )
goto synchronize;
the_thread_queue->sync_state = THREAD_BLOCKING_OPERATION_SYNCHRONIZED;
6fc4: e3a03000 mov r3, #0
6fc8: e5803030 str r3, [r0, #48] ; 0x30
if ( priority == search_priority )
6fcc: 0a000006 beq 6fec <_Thread_queue_Enqueue_priority+0x15c>
goto equal_priority;
search_node = (Chain_Node *) search_thread;
next_node = search_node->next;
6fd0: e5943000 ldr r3, [r4]
the_node = (Chain_Node *) the_thread;
the_node->next = next_node;
the_node->previous = search_node;
6fd4: e8810018 stm r1, {r3, r4}
search_node->next = the_node; next_node->previous = the_node; the_thread->Wait.queue = the_thread_queue;
6fd8: e5810044 str r0, [r1, #68] ; 0x44
next_node = search_node->next;
the_node = (Chain_Node *) the_thread;
the_node->next = next_node;
the_node->previous = search_node;
search_node->next = the_node;
6fdc: e5841000 str r1, [r4]
next_node->previous = the_node;
6fe0: e5831004 str r1, [r3, #4]
6fe4: e129f005 msr CPSR_fc, r5
6fe8: ea000007 b 700c <_Thread_queue_Enqueue_priority+0x17c>
6fec: e284403c add r4, r4, #60 ; 0x3c
_ISR_Enable( level );
return THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED;
equal_priority: /* add at end of priority group */
search_node = _Chain_Tail( &search_thread->Wait.Block2n );
previous_node = search_node->previous;
6ff0: e5943004 ldr r3, [r4, #4]
the_node = (Chain_Node *) the_thread;
the_node->next = search_node;
6ff4: e5814000 str r4, [r1]
the_node->previous = previous_node;
6ff8: e5813004 str r3, [r1, #4]
previous_node->next = the_node; search_node->previous = the_node; the_thread->Wait.queue = the_thread_queue;
6ffc: e5810044 str r0, [r1, #68] ; 0x44
previous_node = search_node->previous;
the_node = (Chain_Node *) the_thread;
the_node->next = search_node;
the_node->previous = previous_node;
previous_node->next = the_node;
7000: e5831000 str r1, [r3]
search_node->previous = the_node;
7004: e5841004 str r1, [r4, #4]
7008: e129f00c msr CPSR_fc, ip
700c: e3a00001 mov r0, #1
the_thread->Wait.queue = the_thread_queue; _ISR_Enable( level ); return THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED;
7010: e8bd85f0 pop {r4, r5, r6, r7, r8, sl, pc}
* For example, the blocking thread could have been given * the mutex by an ISR or timed out. * * WARNING! Returning with interrupts disabled! */ *level_p = level;
7014: e582c000 str ip, [r2]
return the_thread_queue->sync_state;
7018: e5900030 ldr r0, [r0, #48] ; 0x30
}
701c: e8bd85f0 pop {r4, r5, r6, r7, r8, sl, pc}
00014a24 <_Timer_server_Body>:
* @a arg points to the corresponding timer server control block.
*/
static rtems_task _Timer_server_Body(
rtems_task_argument arg
)
{
14a24: e92d4ff0 push {r4, r5, r6, r7, r8, r9, sl, fp, lr}
14a28: e24dd020 sub sp, sp, #32
14a2c: e28d3014 add r3, sp, #20
14a30: e28d5008 add r5, sp, #8
RTEMS_INLINE_ROUTINE void _Chain_Initialize_empty(
Chain_Control *the_chain
)
{
the_chain->first = _Chain_Tail(the_chain);
the_chain->permanent_null = NULL;
14a34: e3a09000 mov r9, #0
*/
RTEMS_INLINE_ROUTINE Chain_Node *_Chain_Tail(
Chain_Control *the_chain
)
{
return (Chain_Node *) &the_chain->permanent_null;
14a38: e283a004 add sl, r3, #4 14a3c: e2858004 add r8, r5, #4
Chain_Control *the_chain
)
{
the_chain->first = _Chain_Tail(the_chain);
the_chain->permanent_null = NULL;
the_chain->last = _Chain_Head(the_chain);
14a40: e58d301c str r3, [sp, #28]
static void _Timer_server_Stop_interval_system_watchdog(
Timer_server_Control *ts
)
{
_Watchdog_Remove( &ts->Interval_watchdogs.System_watchdog );
14a44: e2802008 add r2, r0, #8
static void _Timer_server_Stop_tod_system_watchdog(
Timer_server_Control *ts
)
{
_Watchdog_Remove( &ts->TOD_watchdogs.System_watchdog );
14a48: e2803040 add r3, r0, #64 ; 0x40
*/
RTEMS_INLINE_ROUTINE void _Chain_Initialize_empty(
Chain_Control *the_chain
)
{
the_chain->first = _Chain_Tail(the_chain);
14a4c: e58da014 str sl, [sp, #20]
the_chain->permanent_null = NULL;
14a50: e58d9018 str r9, [sp, #24]
*/
RTEMS_INLINE_ROUTINE void _Chain_Initialize_empty(
Chain_Control *the_chain
)
{
the_chain->first = _Chain_Tail(the_chain);
14a54: e58d8008 str r8, [sp, #8]
the_chain->permanent_null = NULL;
14a58: e58d900c str r9, [sp, #12]
the_chain->last = _Chain_Head(the_chain);
14a5c: e58d5010 str r5, [sp, #16]
static void _Timer_server_Stop_interval_system_watchdog(
Timer_server_Control *ts
)
{
_Watchdog_Remove( &ts->Interval_watchdogs.System_watchdog );
14a60: e58d2004 str r2, [sp, #4]
static void _Timer_server_Stop_tod_system_watchdog(
Timer_server_Control *ts
)
{
_Watchdog_Remove( &ts->TOD_watchdogs.System_watchdog );
14a64: e58d3000 str r3, [sp]
* @a arg points to the corresponding timer server control block.
*/
static rtems_task _Timer_server_Body(
rtems_task_argument arg
)
{
14a68: e1a04000 mov r4, r0
*/
Watchdog_Interval delta = snapshot - watchdogs->last_snapshot;
watchdogs->last_snapshot = snapshot;
_Watchdog_Adjust_to_chain( &watchdogs->Chain, delta, fire_chain );
14a6c: e280b030 add fp, r0, #48 ; 0x30
/*
* This path is for normal forward movement and cases where the
* TOD has been set forward.
*/
delta = snapshot - last_snapshot;
_Watchdog_Adjust_to_chain( &watchdogs->Chain, delta, fire_chain );
14a70: e2807068 add r7, r0, #104 ; 0x68
{
/*
* Afterwards all timer inserts are directed to this chain and the interval
* and TOD chains will be no more modified by other parties.
*/
ts->insert_chain = insert_chain;
14a74: e28d2014 add r2, sp, #20 14a78: e5842078 str r2, [r4, #120] ; 0x78
static void _Timer_server_Process_interval_watchdogs(
Timer_server_Watchdogs *watchdogs,
Chain_Control *fire_chain
)
{
Watchdog_Interval snapshot = _Watchdog_Ticks_since_boot;
14a7c: e59f2168 ldr r2, [pc, #360] ; 14bec <_Timer_server_Body+0x1c8> 14a80: e5923000 ldr r3, [r2]
/*
* We assume adequate unsigned arithmetic here.
*/
Watchdog_Interval delta = snapshot - watchdogs->last_snapshot;
14a84: e594103c ldr r1, [r4, #60] ; 0x3c
watchdogs->last_snapshot = snapshot;
_Watchdog_Adjust_to_chain( &watchdogs->Chain, delta, fire_chain );
14a88: e1a02005 mov r2, r5 14a8c: e0611003 rsb r1, r1, r3
/*
* We assume adequate unsigned arithmetic here.
*/
Watchdog_Interval delta = snapshot - watchdogs->last_snapshot;
watchdogs->last_snapshot = snapshot;
14a90: e584303c str r3, [r4, #60] ; 0x3c
_Watchdog_Adjust_to_chain( &watchdogs->Chain, delta, fire_chain );
14a94: e1a0000b mov r0, fp 14a98: eb000ffe bl 18a98 <_Watchdog_Adjust_to_chain>
static void _Timer_server_Process_tod_watchdogs(
Timer_server_Watchdogs *watchdogs,
Chain_Control *fire_chain
)
{
Watchdog_Interval snapshot = (Watchdog_Interval) _TOD_Seconds_since_epoch();
14a9c: e59f314c ldr r3, [pc, #332] ; 14bf0 <_Timer_server_Body+0x1cc>
Watchdog_Interval last_snapshot = watchdogs->last_snapshot;
14aa0: e5942074 ldr r2, [r4, #116] ; 0x74
static void _Timer_server_Process_tod_watchdogs(
Timer_server_Watchdogs *watchdogs,
Chain_Control *fire_chain
)
{
Watchdog_Interval snapshot = (Watchdog_Interval) _TOD_Seconds_since_epoch();
14aa4: e5936000 ldr r6, [r3]
/*
* Process the seconds chain. Start by checking that the Time
* of Day (TOD) has not been set backwards. If it has then
* we want to adjust the watchdogs->Chain to indicate this.
*/
if ( snapshot > last_snapshot ) {
14aa8: e1560002 cmp r6, r2
14aac: 9a000004 bls 14ac4 <_Timer_server_Body+0xa0>
/*
* This path is for normal forward movement and cases where the
* TOD has been set forward.
*/
delta = snapshot - last_snapshot;
_Watchdog_Adjust_to_chain( &watchdogs->Chain, delta, fire_chain );
14ab0: e0621006 rsb r1, r2, r6 14ab4: e1a00007 mov r0, r7 14ab8: e1a02005 mov r2, r5 14abc: eb000ff5 bl 18a98 <_Watchdog_Adjust_to_chain> 14ac0: ea000003 b 14ad4 <_Timer_server_Body+0xb0>
/*
* The current TOD is before the last TOD which indicates that
* TOD has been set backwards.
*/
delta = last_snapshot - snapshot;
_Watchdog_Adjust( &watchdogs->Chain, WATCHDOG_BACKWARD, delta );
14ac4: 30662002 rsbcc r2, r6, r2 14ac8: 31a00007 movcc r0, r7 14acc: 33a01001 movcc r1, #1 14ad0: 3b000fc8 blcc 189f8 <_Watchdog_Adjust>
}
watchdogs->last_snapshot = snapshot;
14ad4: e5846074 str r6, [r4, #116] ; 0x74
}
static void _Timer_server_Process_insertions( Timer_server_Control *ts )
{
while ( true ) {
Timer_Control *timer = (Timer_Control *) _Chain_Get( ts->insert_chain );
14ad8: e5940078 ldr r0, [r4, #120] ; 0x78 14adc: eb000228 bl 15384 <_Chain_Get>
if ( timer == NULL ) {
14ae0: e2501000 subs r1, r0, #0
14ae4: 0a00000a beq 14b14 <_Timer_server_Body+0xf0>
static void _Timer_server_Insert_timer(
Timer_server_Control *ts,
Timer_Control *timer
)
{
if ( timer->the_class == TIMER_INTERVAL_ON_TASK ) {
14ae8: e5913038 ldr r3, [r1, #56] ; 0x38 14aec: e3530001 cmp r3, #1
_Watchdog_Insert( &ts->Interval_watchdogs.Chain, &timer->Ticker );
14af0: 02811010 addeq r1, r1, #16 14af4: 01a0000b moveq r0, fp
static void _Timer_server_Insert_timer(
Timer_server_Control *ts,
Timer_Control *timer
)
{
if ( timer->the_class == TIMER_INTERVAL_ON_TASK ) {
14af8: 0a000003 beq 14b0c <_Timer_server_Body+0xe8>
_Watchdog_Insert( &ts->Interval_watchdogs.Chain, &timer->Ticker );
} else if ( timer->the_class == TIMER_TIME_OF_DAY_ON_TASK ) {
14afc: e3530003 cmp r3, #3
14b00: 1afffff4 bne 14ad8 <_Timer_server_Body+0xb4>
_Watchdog_Insert( &ts->TOD_watchdogs.Chain, &timer->Ticker );
14b04: e2811010 add r1, r1, #16 14b08: e1a00007 mov r0, r7 14b0c: eb00100e bl 18b4c <_Watchdog_Insert> 14b10: eafffff0 b 14ad8 <_Timer_server_Body+0xb4>
static inline uint32_t arm_interrupt_disable( void )
{
uint32_t arm_switch_reg;
uint32_t level;
asm volatile (
14b14: e10f3000 mrs r3, CPSR 14b18: e3832080 orr r2, r3, #128 ; 0x80 14b1c: e129f002 msr CPSR_fc, r2
* body loop.
*/
_Timer_server_Process_insertions( ts );
_ISR_Disable( level );
if ( _Chain_Is_empty( insert_chain ) ) {
14b20: e59d2014 ldr r2, [sp, #20] 14b24: e152000a cmp r2, sl
14b28: 1a000005 bne 14b44 <_Timer_server_Body+0x120>
ts->insert_chain = NULL;
14b2c: e5841078 str r1, [r4, #120] ; 0x78
static inline void arm_interrupt_enable( uint32_t level )
{
ARM_SWITCH_REGISTERS;
asm volatile (
14b30: e129f003 msr CPSR_fc, r3
_Chain_Initialize_empty( &fire_chain );
while ( true ) {
_Timer_server_Get_watchdogs_that_fire_now( ts, &insert_chain, &fire_chain );
if ( !_Chain_Is_empty( &fire_chain ) ) {
14b34: e59d3008 ldr r3, [sp, #8] 14b38: e1530008 cmp r3, r8
14b3c: 1a000002 bne 14b4c <_Timer_server_Body+0x128>
14b40: ea000015 b 14b9c <_Timer_server_Body+0x178>
14b44: e129f003 msr CPSR_fc, r3 <== NOT EXECUTED 14b48: eaffffcb b 14a7c <_Timer_server_Body+0x58> <== NOT EXECUTED
static inline uint32_t arm_interrupt_disable( void )
{
uint32_t arm_switch_reg;
uint32_t level;
asm volatile (
14b4c: e10f2000 mrs r2, CPSR 14b50: e3823080 orr r3, r2, #128 ; 0x80 14b54: e129f003 msr CPSR_fc, r3
*/
RTEMS_INLINE_ROUTINE bool _Chain_Is_empty(
Chain_Control *the_chain
)
{
return (the_chain->first == _Chain_Tail(the_chain));
14b58: e59d3008 ldr r3, [sp, #8]
*/
RTEMS_INLINE_ROUTINE Chain_Node *_Chain_Get_unprotected(
Chain_Control *the_chain
)
{
if ( !_Chain_Is_empty(the_chain))
14b5c: e1530008 cmp r3, r8
14b60: 0a00000b beq 14b94 <_Timer_server_Body+0x170>
{
Chain_Node *return_node;
Chain_Node *new_first;
return_node = the_chain->first;
new_first = return_node->next;
14b64: e5931000 ldr r1, [r3]
* It is essential that interrupts are disable here since an interrupt
* service routine may remove a watchdog from the chain.
*/
_ISR_Disable( level );
watchdog = (Watchdog_Control *) _Chain_Get_unprotected( &fire_chain );
if ( watchdog != NULL ) {
14b68: e3530000 cmp r3, #0
the_chain->first = new_first;
14b6c: e58d1008 str r1, [sp, #8]
new_first->previous = _Chain_Head(the_chain);
14b70: e5815004 str r5, [r1, #4]
14b74: 0a000006 beq 14b94 <_Timer_server_Body+0x170>
watchdog->state = WATCHDOG_INACTIVE;
14b78: e5839008 str r9, [r3, #8]
static inline void arm_interrupt_enable( uint32_t level )
{
ARM_SWITCH_REGISTERS;
asm volatile (
14b7c: e129f002 msr CPSR_fc, r2
/*
* The timer server may block here and wait for resources or time.
* The system watchdogs are inactive and will remain inactive since
* the active flag of the timer server is true.
*/
(*watchdog->routine)( watchdog->id, watchdog->user_data );
14b80: e2830020 add r0, r3, #32
14b84: e8900003 ldm r0, {r0, r1}
14b88: e1a0e00f mov lr, pc
14b8c: e593f01c ldr pc, [r3, #28]
}
14b90: eaffffed b 14b4c <_Timer_server_Body+0x128> 14b94: e129f002 msr CPSR_fc, r2 14b98: eaffffb5 b 14a74 <_Timer_server_Body+0x50>
} else {
ts->active = false;
14b9c: e5c4907c strb r9, [r4, #124] ; 0x7c 14ba0: e59f304c ldr r3, [pc, #76] ; 14bf4 <_Timer_server_Body+0x1d0> 14ba4: e5932000 ldr r2, [r3] 14ba8: e2822001 add r2, r2, #1 14bac: e5832000 str r2, [r3]
/*
* Block until there is something to do.
*/
_Thread_Disable_dispatch();
_Thread_Set_state( ts->thread, STATES_DELAYING );
14bb0: e3a01008 mov r1, #8 14bb4: e5940000 ldr r0, [r4] 14bb8: eb000d42 bl 180c8 <_Thread_Set_state>
_Timer_server_Reset_interval_system_watchdog( ts );
14bbc: e1a00004 mov r0, r4 14bc0: ebffff6b bl 14974 <_Timer_server_Reset_interval_system_watchdog>
_Timer_server_Reset_tod_system_watchdog( ts );
14bc4: e1a00004 mov r0, r4 14bc8: ebffff7f bl 149cc <_Timer_server_Reset_tod_system_watchdog>
_Thread_Enable_dispatch();
14bcc: eb000aae bl 1768c <_Thread_Enable_dispatch>
ts->active = true;
14bd0: e3a03001 mov r3, #1 14bd4: e5c4307c strb r3, [r4, #124] ; 0x7c
static void _Timer_server_Stop_interval_system_watchdog(
Timer_server_Control *ts
)
{
_Watchdog_Remove( &ts->Interval_watchdogs.System_watchdog );
14bd8: e59d0004 ldr r0, [sp, #4] 14bdc: eb001033 bl 18cb0 <_Watchdog_Remove>
static void _Timer_server_Stop_tod_system_watchdog(
Timer_server_Control *ts
)
{
_Watchdog_Remove( &ts->TOD_watchdogs.System_watchdog );
14be0: e59d0000 ldr r0, [sp] 14be4: eb001031 bl 18cb0 <_Watchdog_Remove> 14be8: eaffffa1 b 14a74 <_Timer_server_Body+0x50>