1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * printf.c:  Internal prom library printf facility.
 4 *
 5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 6 */
 7
 8/* This routine is internal to the prom library, no one else should know
 9 * about or use it!  It's simple and smelly anyway....
10 */
11
12#include <linux/kernel.h>
13
14#include <asm/openprom.h>
15#include <asm/oplib.h>
16
17#ifdef CONFIG_KGDB
18extern int kgdb_initialized;
19#endif
20
21static char ppbuf[1024];
22
23void
24prom_printf(char *fmt, ...)
25{
26	va_list args;
27	char ch, *bptr;
28	int i;
29
30	va_start(args, fmt);
31
32#ifdef CONFIG_KGDB
33	ppbuf[0] = 'O';
34	i = vsprintf(ppbuf + 1, fmt, args) + 1;
35#else
36	i = vsprintf(ppbuf, fmt, args);
37#endif
38
39	bptr = ppbuf;
40
41#ifdef CONFIG_KGDB
42	if (kgdb_initialized) {
43		pr_info("kgdb_initialized = %d\n", kgdb_initialized);
44		putpacket(bptr, 1);
45	} else
46#else
47	while((ch = *(bptr++)) != 0) {
48		if(ch == '\n')
49			prom_putchar('\r');
50
51		prom_putchar(ch);
52	}
53#endif
54	va_end(args);
55	return;
56}

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * printf.c:  Internal prom library printf facility.
 4 *
 5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 6 */
 7
 8/* This routine is internal to the prom library, no one else should know
 9 * about or use it!  It's simple and smelly anyway....
10 */
11
12#include <linux/kernel.h>
13
14#include <asm/openprom.h>
15#include <asm/oplib.h>
16
17#ifdef CONFIG_KGDB
18extern int kgdb_initialized;
19#endif
20
21static char ppbuf[1024];
22
23void
24prom_printf(char *fmt, ...)
25{
26	va_list args;
27	char ch, *bptr;
 
28
29	va_start(args, fmt);
30
31#ifdef CONFIG_KGDB
32	ppbuf[0] = 'O';
33	vsprintf(ppbuf + 1, fmt, args) + 1;
34#else
35	vsprintf(ppbuf, fmt, args);
36#endif
37
38	bptr = ppbuf;
39
40#ifdef CONFIG_KGDB
41	if (kgdb_initialized) {
42		pr_info("kgdb_initialized = %d\n", kgdb_initialized);
43		putpacket(bptr, 1);
44	} else
45#else
46	while((ch = *(bptr++)) != 0) {
47		if(ch == '\n')
48			prom_putchar('\r');
49
50		prom_putchar(ch);
51	}
52#endif
53	va_end(args);
54	return;
55}