blob: 11ac7834fd43d12185f7f5f9aad26a50c134cc24 (
plain)
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
|
#include "log.h"
#include <cpu/arch_inst.h>
#include <drivers/serial.h>
#include <drivers/vbe.h>
#include <fonts.h>
#include <sched/scheduler.h>
#include <stdarg.h>
int log_to_screen = 0;
extern u8 *framebuffer;
extern u32 framebuffer_width;
extern u32 framebuffer_height;
void log_enable_screen(void) {
log_to_screen = 1;
u32 *p = (u32 *)framebuffer;
for (u32 i = 0; i < framebuffer_width * framebuffer_height; i++, p++) {
*p = 0xFF0000;
}
}
struct stackframe {
struct stackframe *ebp;
u32 eip;
};
u32 x = 0;
u32 y = 0;
void log_char(const char c) {
write_serial(c);
if (log_to_screen) {
if ('\n' == c) {
x = 0;
y += 8;
return;
}
if (x > 1000) {
y += 8;
x = 0;
}
vbe_drawfont(x, y, c);
x += 8;
}
}
void dump_backtrace(u32 max_frames) {
struct stackframe *stk = (void *)get_current_sbp();
kprintf("Stack trace:\n");
for (u32 frame = 0; stk && frame < max_frames; ++frame) {
kprintf(" 0x%x\n", stk->eip);
stk = stk->ebp;
}
if (current_task) {
kprintf(" PID: %x\n", current_task->pid);
}
}
void klog(int code, char *fmt, ...) {
va_list list;
va_start(list, fmt);
switch (code) {
case LOG_SUCCESS:
kprintf("[SUCCESS] ");
break;
case LOG_NOTE:
kprintf("[NOTE] ");
break;
case LOG_WARN:
kprintf("[WARN] ");
break;
default:
case LOG_ERROR:
kprintf("[ERROR] ");
break;
}
vkprintf(fmt, list);
va_end(list);
kprintf("\n");
}
|
