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/*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* Modified for LEON3 BSP.
* COPYRIGHT (c) 2004.
* Gaisler Research.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>
#include <stdarg.h>
static size_t lo_strnlen(const char * s, size_t count)
{
const char *sc;
for (sc = s; count-- && *sc != '\0'; ++sc)
/* nothing */;
return sc - s;
}
static int lo_vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
{
int len;
unsigned long long num;
int i,j,n;
char *str, *end, c;
const char *s;
int flags;
int field_width;
int precision;
int qualifier;
str = buf;
end = buf + size - 1;
if (end < buf - 1) {
end = ((void *) -1);
size = end - buf + 1;
}
for (; *fmt ; ++fmt) {
if (*fmt != '%') {
if (str <= end)
*str = *fmt;
++str;
continue;
}
/* process flags */
flags = 0;
/* get field width */
field_width = -1;
/* get the precision */
precision = -1;
/* get the conversion qualifier */
qualifier = 'l';
++fmt;
/* default base */
switch (*fmt) {
case 'c':
c = (unsigned char) va_arg(args, int);
if (str <= end)
*str = c;
++str;
while (--field_width > 0) {
if (str <= end)
*str = ' ';
++str;
}
continue;
case 's':
s = va_arg(args, char *);
if (!s)
s = "<NULL>";
len = lo_strnlen(s, precision);
for (i = 0; i < len; ++i) {
if (str <= end)
*str = *s;
++str; ++s;
}
while (len < field_width--) {
if (str <= end)
*str = ' ';
++str;
}
continue;
case '%':
if (str <= end)
*str = '%';
++str;
continue;
case 'x':
break;
default:
if (str <= end)
*str = '%';
++str;
if (*fmt) {
if (str <= end)
*str = *fmt;
++str;
} else {
--fmt;
}
continue;
}
num = va_arg(args, unsigned long);
for (j=0,i=0;i<8 && str <= end;i++) {
if ( (n = ((unsigned long)(num & (0xf0000000ul>>(i*4)))) >> ((7-i)*4)) || j != 0) {
j = 1;
if (n >= 10)
n += 'a'-10;
else
n += '0';
*str = n;
++str;
}
}
if (j == 0 && str <= end) {
*str = '0';
++str;
}
}
if (str <= end)
*str = '\0';
else if (size > 0)
/* don't write out a null byte if the buf size is zero */
*end = '\0';
/* the trailing null byte doesn't count towards the total
* ++str;
*/
return str-buf;
}
int DEBUG_sprintf(char *buf, size_t size, const char *fmt, ...) {
va_list args;
int printed_len;
va_start(args, fmt);
printed_len = lo_vsnprintf(buf, size, fmt, args);
va_end(args);
return printed_len;
}
int scan_uarts();
void DEBUG_puts( char *string );
int DEBUG_printf(const char *fmt, ...)
{
va_list args;
int printed_len;
char printk_buf[1024+1];
/* Emit the output into the temporary buffer */
va_start(args, fmt);
printed_len = lo_vsnprintf(printk_buf, sizeof(printk_buf)-1, fmt, args);
printk_buf[printed_len] = 0;
va_end(args);
scan_uarts();
/*DEBUG_puts(printk_buf);*/
return printed_len;
}
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