blob: 516df45b84d81c639c1aa5ffde020d011000b019 (
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
|
/*
* This file is part of the coreinfo project.
*
* Copyright (C) 2018 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <libpayload-config.h>
#include <libpayload.h>
extern struct console_output_driver *console_out;
extern struct sysinfo_t lib_sysinfo;
static void buts(char *s)
{
int i;
for (i = 0; i < strlen(s); i++)
outb(s[i], 0x3f8);
}
int main(void)
{
buts("Greetings from linuxcheck, via hard-coded calls to serial functions.\n");
if (console_out == NULL)
buts("Bad news: console_out is NULL\n");
if (lib_sysinfo.serial == NULL)
buts("Bad news: lib_sysinfo.serial is NULL. Very little will work well.\n");
buts("The next line should be puts works\n");
puts("puts works\n");
buts("If you did not see puts works, then you have a console issues\n");
buts("The next line should be 'printf works'\n");
printf("printf works\n");
buts(" ... if you did not see printf works, then you have a printf issue\n");
buts("Now we will halt. Bye");
halt();
return 0;
}
|
