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1 | /** @addtogroup generic |
1 | /** @addtogroup generic |
2 | * @{ |
2 | * @{ |
3 | */ |
3 | */ |
4 | 4 | ||
5 | /** |
5 | /** |
6 | * @file |
6 | * @file |
7 | * @brief Tdebug. |
7 | * @brief Tdebug. |
8 | */ |
8 | */ |
9 | 9 | ||
10 | #include <synch/waitq.h> |
10 | #include <synch/waitq.h> |
11 | #include <console/klog.h> |
11 | #include <console/klog.h> |
12 | #include <udebug/udebug.h> |
12 | #include <udebug/udebug.h> |
13 | #include <arch.h> |
13 | #include <arch.h> |
14 | 14 | ||
15 | void udebug_stoppable_begin(void) |
15 | void udebug_stoppable_begin(void) |
16 | { |
16 | { |
17 | int nsc; |
17 | int nsc; |
18 | call_t *db_call; |
18 | call_t *db_call; |
- | 19 | ipl_t ipl; |
|
19 | 20 | ||
- | 21 | ipl = interrupts_disable(); |
|
20 | spinlock_lock(&TASK->lock); |
22 | spinlock_lock(&TASK->lock); |
21 | 23 | ||
22 | nsc = --TASK->not_stoppable_count; |
24 | nsc = --TASK->not_stoppable_count; |
23 | db_call = TASK->debug_begin_call; |
25 | db_call = TASK->debug_begin_call; |
24 | 26 | ||
25 | if (TASK->stop_request == true) { |
27 | if (TASK->stop_request == true) { |
26 | klog_printf("udebug_stoppable_begin"); |
28 | klog_printf("udebug_stoppable_begin"); |
27 | klog_printf(" - nsc := %d", nsc); |
29 | klog_printf(" - nsc := %d", nsc); |
28 | } |
30 | } |
29 | 31 | ||
30 | if (TASK->stop_request == true && nsc == 0) { |
32 | if (TASK->stop_request == true && nsc == 0) { |
31 | TASK->stop_request = false; |
33 | TASK->stop_request = false; |
32 | TASK->debug_begin_call = NULL; |
34 | TASK->debug_begin_call = NULL; |
33 | spinlock_unlock(&TASK->lock); |
35 | spinlock_unlock(&TASK->lock); |
- | 36 | interrupts_restore(ipl); |
|
34 | 37 | ||
35 | IPC_SET_RETVAL(db_call->data, 0); |
38 | IPC_SET_RETVAL(db_call->data, 0); |
36 | klog_printf("udebug_stoppable_begin/ipc_answer"); |
39 | klog_printf("udebug_stoppable_begin/ipc_answer"); |
37 | ipc_answer(&TASK->answerbox, db_call); |
40 | ipc_answer(&TASK->answerbox, db_call); |
38 | } else { |
41 | } else { |
39 | spinlock_unlock(&TASK->lock); |
42 | spinlock_unlock(&TASK->lock); |
- | 43 | interrupts_restore(ipl); |
|
40 | } |
44 | } |
41 | } |
45 | } |
42 | 46 | ||
43 | void udebug_stoppable_end(void) |
47 | void udebug_stoppable_end(void) |
44 | { |
48 | { |
- | 49 | ipl_t ipl; |
|
- | 50 | ||
45 | restart: |
51 | restart: |
- | 52 | ipl = interrupts_disable(); |
|
46 | spinlock_lock(&TASK->lock); |
53 | spinlock_lock(&TASK->lock); |
47 | 54 | ||
48 | if (TASK->stop_request) { |
55 | if (TASK->stop_request) { |
49 | TASK->debug_begin_call = NULL; |
56 | TASK->debug_begin_call = NULL; |
50 | spinlock_unlock(&TASK->lock); |
57 | spinlock_unlock(&TASK->lock); |
- | 58 | interrupts_restore(ipl); |
|
- | 59 | ||
51 | klog_printf("udebug_stoppable_end: waitq_sleep"); |
60 | klog_printf("udebug_stoppable_end: waitq_sleep"); |
52 | waitq_sleep(&THREAD->go_wq); |
61 | waitq_sleep(&THREAD->go_wq); |
53 | goto restart; |
62 | goto restart; |
54 | /* must try again - have to lose stoppability atomically */ |
63 | /* must try again - have to lose stoppability atomically */ |
55 | } else { |
64 | } else { |
56 | ++TASK->not_stoppable_count; |
65 | ++TASK->not_stoppable_count; |
57 | spinlock_unlock(&TASK->lock); |
66 | spinlock_unlock(&TASK->lock); |
- | 67 | interrupts_restore(ipl); |
|
58 | } |
68 | } |
59 | } |
69 | } |
60 | 70 | ||
61 | void udebug_syscall_event(unative_t a1, unative_t a2, unative_t a3, |
71 | void udebug_syscall_event(unative_t a1, unative_t a2, unative_t a3, |
62 | unative_t a4, unative_t a5, unative_t a6, unative_t id, unative_t rc) |
72 | unative_t a4, unative_t a5, unative_t a6, unative_t id, unative_t rc) |
63 | { |
73 | { |
64 | call_t *call; |
74 | call_t *call; |
- | 75 | ipl_t ipl; |
|
65 | 76 | ||
- | 77 | ipl = interrupts_disable(); |
|
66 | spinlock_lock(&TASK->lock); |
78 | spinlock_lock(&TASK->lock); |
- | 79 | ||
67 | /* being debugged + have go */ |
80 | /* being debugged + have go */ |
68 | if (TASK->being_debugged && !TASK->stop_request) { /* locking! */ |
81 | if (TASK->being_debugged && !TASK->stop_request) { |
69 | klog_printf("udebug_syscall_event"); |
82 | klog_printf("udebug_syscall_event"); |
70 | call = TASK->debug_go_call; |
83 | call = TASK->debug_go_call; |
71 | IPC_SET_RETVAL(call->data, 0); |
84 | IPC_SET_RETVAL(call->data, 0); |
72 | IPC_SET_ARG1(call->data, UDEBUG_EVENT_SYSCALL); |
85 | IPC_SET_ARG1(call->data, UDEBUG_EVENT_SYSCALL); |
73 | IPC_SET_ARG2(call->data, id); |
86 | IPC_SET_ARG2(call->data, id); |
74 | IPC_SET_ARG3(call->data, rc); |
87 | IPC_SET_ARG3(call->data, rc); |
75 | klog_printf("udebug_syscall_event/ipc_answer"); |
88 | klog_printf("udebug_syscall_event/ipc_answer"); |
76 | 89 | ||
77 | THREAD->syscall_args[0] = a1; |
90 | THREAD->syscall_args[0] = a1; |
78 | THREAD->syscall_args[1] = a2; |
91 | THREAD->syscall_args[1] = a2; |
79 | THREAD->syscall_args[2] = a3; |
92 | THREAD->syscall_args[2] = a3; |
80 | THREAD->syscall_args[3] = a4; |
93 | THREAD->syscall_args[3] = a4; |
81 | THREAD->syscall_args[4] = a5; |
94 | THREAD->syscall_args[4] = a5; |
82 | THREAD->syscall_args[5] = a6; |
95 | THREAD->syscall_args[5] = a6; |
83 | 96 | ||
84 | ipc_answer(&TASK->answerbox, TASK->debug_go_call); |
97 | ipc_answer(&TASK->answerbox, TASK->debug_go_call); |
85 | spinlock_unlock(&TASK->lock); |
98 | spinlock_unlock(&TASK->lock); |
- | 99 | interrupts_restore(ipl); |
|
- | 100 | ||
86 | waitq_sleep(&THREAD->go_wq); |
101 | waitq_sleep(&THREAD->go_wq); |
87 | } else { |
102 | } else { |
88 | spinlock_unlock(&TASK->lock); |
103 | spinlock_unlock(&TASK->lock); |
- | 104 | interrupts_restore(ipl); |
|
89 | } |
105 | } |
90 | } |
106 | } |
91 | 107 | ||
92 | /** @} |
108 | /** @} |
93 | */ |
109 | */ |
94 | 110 |