1 /*
2 * Copyright (c) 2012-2014 Travis Geiselbrecht
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files
6 * (the "Software"), to deal in the Software without restriction,
7 * including without limitation the rights to use, copy, modify, merge,
8 * publish, distribute, sublicense, and/or sell copies of the Software,
9 * and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23 #ifndef __KERNEL_DEBUG_H
24 #define __KERNEL_DEBUG_H
25
26 #include <compiler.h>
27
28 __BEGIN_CDECLS;
29
30 #include <debug.h>
31
32 /* kernel event log */
33 #if WITH_KERNEL_EVLOG
34
35 #include <lib/evlog.h>
36
37 #ifndef KERNEL_EVLOG_LEN
38 #define KERNEL_EVLOG_LEN 1024
39 #endif
40
41 void kernel_evlog_init(void);
42
43 void kernel_evlog_add(uintptr_t id, uintptr_t arg0, uintptr_t arg1);
44 void kernel_evlog_dump(void);
45
46 #else // !WITH_KERNEL_EVLOG
47
48 /* do nothing versions */
kernel_evlog_init(void)49 static inline void kernel_evlog_init(void) {}
kernel_evlog_add(uintptr_t id,uintptr_t arg0,uintptr_t arg1)50 static inline void kernel_evlog_add(uintptr_t id, uintptr_t arg0, uintptr_t arg1) {}
kernel_evlog_dump(void)51 static inline void kernel_evlog_dump(void) {}
52
53 #endif
54
55 enum {
56 KERNEL_EVLOG_NULL = 0,
57 KERNEL_EVLOG_CONTEXT_SWITCH,
58 KERNEL_EVLOG_PREEMPT,
59 KERNEL_EVLOG_TIMER_TICK,
60 KERNEL_EVLOG_TIMER_CALL,
61 KERNEL_EVLOG_IRQ_ENTER,
62 KERNEL_EVLOG_IRQ_EXIT,
63 };
64
65 #define KEVLOG_THREAD_SWITCH(from, to) kernel_evlog_add(KERNEL_EVLOG_CONTEXT_SWITCH, (uintptr_t)from, (uintptr_t)to)
66 #define KEVLOG_THREAD_PREEMPT(thread) kernel_evlog_add(KERNEL_EVLOG_PREEMPT, (uintptr_t)thread, 0)
67 #define KEVLOG_TIMER_TICK() kernel_evlog_add(KERNEL_EVLOG_TIMER_TICK, 0, 0)
68 #define KEVLOG_TIMER_CALL(ptr, arg) kernel_evlog_add(KERNEL_EVLOG_TIMER_CALL, (uintptr_t)ptr, (uintptr_t)arg)
69 #define KEVLOG_IRQ_ENTER(irqn) kernel_evlog_add(KERNEL_EVLOG_IRQ_ENTER, (uintptr_t)irqn, 0)
70 #define KEVLOG_IRQ_EXIT(irqn) kernel_evlog_add(KERNEL_EVLOG_IRQ_EXIT, (uintptr_t)irqn, 0)
71
72 __END_CDECLS;
73
74 #endif
75
76