1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Callers outside of misc.c need access to the error reporting routines,
4  * but the *_putstr() functions need to stay in misc.c because of how
5  * memcpy() and memmove() are defined for the compressed boot environment.
6  */
7 #include "misc.h"
8 #include "error.h"
9 
warn(const char * m)10 void warn(const char *m)
11 {
12 	error_putstr("\n\n");
13 	error_putstr(m);
14 	error_putstr("\n\n");
15 }
16 
error(char * m)17 void error(char *m)
18 {
19 	warn(m);
20 	error_putstr(" -- System halted");
21 
22 	while (1)
23 		asm("hlt");
24 }
25 
26 /* EFI libstub  provides vsnprintf() */
27 #ifdef CONFIG_EFI_STUB
panic(const char * fmt,...)28 void panic(const char *fmt, ...)
29 {
30 	static char buf[1024];
31 	va_list args;
32 	int len;
33 
34 	va_start(args, fmt);
35 	len = vsnprintf(buf, sizeof(buf), fmt, args);
36 	va_end(args);
37 
38 	if (len && buf[len - 1] == '\n')
39 		buf[len - 1] = '\0';
40 
41 	error(buf);
42 }
43 #endif
44