]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
04a41849 TM |
2 | #include <linux/kmsg_dump.h> |
3 | #include <linux/console.h> | |
4 | #include <shared/init.h> | |
5 | #include <shared/kern.h> | |
6 | #include <os.h> | |
7 | ||
8 | static void kmsg_dumper_stdout(struct kmsg_dumper *dumper, | |
9 | enum kmsg_dump_reason reason) | |
10 | { | |
11 | static char line[1024]; | |
12 | ||
13 | size_t len = 0; | |
14 | bool con_available = false; | |
15 | ||
16 | /* only dump kmsg when no console is available */ | |
17 | if (!console_trylock()) | |
18 | return; | |
19 | ||
20 | if (console_drivers != NULL) | |
21 | con_available = true; | |
22 | ||
23 | console_unlock(); | |
24 | ||
25 | if (con_available == true) | |
26 | return; | |
27 | ||
28 | printf("kmsg_dump:\n"); | |
29 | while (kmsg_dump_get_line(dumper, true, line, sizeof(line), &len)) { | |
30 | line[len] = '\0'; | |
31 | printf("%s", line); | |
32 | } | |
33 | } | |
34 | ||
35 | static struct kmsg_dumper kmsg_dumper = { | |
36 | .dump = kmsg_dumper_stdout | |
37 | }; | |
38 | ||
39 | int __init kmsg_dumper_stdout_init(void) | |
40 | { | |
41 | return kmsg_dump_register(&kmsg_dumper); | |
42 | } | |
43 | ||
44 | __uml_postsetup(kmsg_dumper_stdout_init); |