1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <stdarg.h>
30
31 #include <boot/boot.h>
32 #include "libc_private.h"
33
do_nothing(void)34 static void do_nothing(void)
35 {
36 }
37
38 static void (*dputc)(unsigned) = (void *) do_nothing;
39 static void (*dflush)(void) = (void *) do_nothing;
40
dprintf_set_putc(void (* func)(unsigned))41 void dprintf_set_putc(void (*func)(unsigned))
42 {
43 dputc = func;
44 }
dprintf_set_flush(void (* func)(void))45 void dprintf_set_flush(void (*func)(void))
46 {
47 dflush = func;
48 }
49
dprintf(const char * fmt,...)50 void dprintf(const char *fmt, ...)
51 {
52 va_list ap;
53 va_start(ap, fmt);
54 __xprintf(fmt, ap, (void*) dputc, 0);
55 va_end(ap);
56 }
57