Initial import of arm32 port

1 files changed, 275 insertions, 0 deletions

diff --git a/sys/arch/arm32/boot/vsprintf.c b/sys/arch/arm32/boot/vsprintf.c
new file mode 100644
index 00000000000..3e6e9ffb28a
--- /dev/null
+++ b/sys/arch/arm32/boot/vsprintf.c
@@ -0,0 +1,275 @@
+#include <stdarg.h>
+#include <string.h>
+
+# define toupper(x) ((x >= 'a' && x <= 'z') ? (x & 0xdf) : x)
+/*# define tolower(x) ((x >= 'A' && x <= 'Z') ? (x | 0x20) : x)*/
+# define islower(x) ((x >= 'a' && x <= 'z') ? 1 : 0)
+# define isdigit(x) ((x >= '0' && x <= '9') ? 1 : 0)
+# define isxdigit(x) (((x >= '0' && x <= '9') || (x >= 'a' && x <= 'f') || (x >= 'A' && x <= 'F')) ? 1 : 0)
+
+unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
+{
+	unsigned long result = 0,value;
+
+	if (!base) {
+		base = 10;
+		if (*cp == '0') {
+			base = 8;
+			cp++;
+			if ((*cp == 'x') && isxdigit(cp[1])) {
+				cp++;
+				base = 16;
+			}
+		}
+	}
+	while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
+	    ? toupper(*cp) : *cp)-'A'+10) < base) {
+		result = result*base + value;
+		cp++;
+	}
+	if (endp)
+		*endp = (char *)cp;
+	return result;
+}
+
+/* we use this so that we can do without the ctype library */
+#define is_digit(c)	((c) >= '0' && (c) <= '9')
+
+static int skip_atoi(const char **s)
+{
+	int i=0;
+
+	while (is_digit(**s))
+		i = i*10 + *((*s)++) - '0';
+	return i;
+}
+
+#define ZEROPAD	1		/* pad with zero */
+#define SIGN	2		/* unsigned/signed long */
+#define PLUS	4		/* show plus */
+#define SPACE	8		/* space if plus */
+#define LEFT	16		/* left justified */
+#define SPECIAL	32		/* 0x */
+#define SMALL	64		/* use 'abcdef' instead of 'ABCDEF' */
+
+static unsigned int do_div(unsigned int *n, unsigned int base)
+  {
+    unsigned int d;
+
+    d = *n % base;
+    *n /= base;
+
+    return(d);
+  }
+
+static char * number(char * str, int num, int base, int size, int precision
+	,int type)
+{
+	char c,sign,tmp[36];
+	const char *digits="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+	int i;
+
+	if (type&SMALL) digits="0123456789abcdefghijklmnopqrstuvwxyz";
+	if (type&LEFT) type &= ~ZEROPAD;
+	if (base<2 || base>36)
+		return 0;
+	c = (type & ZEROPAD) ? '0' : ' ' ;
+	if (type&SIGN && num<0) {
+		sign='-';
+		num = -num;
+	} else
+		sign=(type&PLUS) ? '+' : ((type&SPACE) ? ' ' : 0);
+	if (sign) size--;
+	if (type&SPECIAL) {
+		if (base==16) size -= 2;
+		else if (base==8) size--;
+	}
+	i=0;
+	if (num==0)
+		tmp[i++]='0';
+	else while (num!=0)
+		tmp[i++]=digits[do_div((unsigned int *)&num,base)];
+	if (i>precision) precision=i;
+	size -= precision;
+	if (!(type&(ZEROPAD+LEFT)))
+		while(size-->0)
+			*str++ = ' ';
+	if (sign)
+		*str++ = sign;
+	if (type&SPECIAL) {
+		if (base==8)
+			*str++ = '0';
+		else if (base==16) {
+			*str++ = '0';
+			*str++ = digits[33];
+		}
+	}
+	if (!(type&LEFT))
+		while(size-->0)
+			*str++ = c;
+	while(i<precision--)
+		*str++ = '0';
+	while(i-->0)
+		*str++ = tmp[i];
+	while(size-->0)
+		*str++ = ' ';
+	return str;
+}
+
+int vsprintf(char *buf, const char *fmt, va_list args)
+{
+	int len;
+	int i;
+	char * str;
+	char *s;
+	int *ip;
+
+	int flags;		/* flags to number() */
+
+	int field_width;	/* width of output field */
+	int precision;		/* min. # of digits for integers; max
+				   number of chars for from string */
+	int qualifier;		/* 'h', 'l', or 'L' for integer fields */
+
+	for (str=buf ; *fmt ; ++fmt) {
+		if (*fmt != '%') {
+			*str++ = *fmt;
+			continue;
+		}
+
+		/* process flags */
+		flags = 0;
+		repeat:
+			++fmt;		/* this also skips first '%' */
+			switch (*fmt) {
+				case '-': flags |= LEFT; goto repeat;
+				case '+': flags |= PLUS; goto repeat;
+				case ' ': flags |= SPACE; goto repeat;
+				case '#': flags |= SPECIAL; goto repeat;
+				case '0': flags |= ZEROPAD; goto repeat;
+				}
+
+		/* get field width */
+		field_width = -1;
+		if (is_digit(*fmt))
+			field_width = skip_atoi(&fmt);
+		else if (*fmt == '*') {
+			/* it's the next argument */
+			field_width = va_arg(args, int);
+			if (field_width < 0) {
+				field_width = -field_width;
+				flags |= LEFT;
+			}
+		}
+
+		/* get the precision */
+		precision = -1;
+		if (*fmt == '.') {
+			++fmt;
+			if (is_digit(*fmt))
+				precision = skip_atoi(&fmt);
+			else if (*fmt == '*') {
+				/* it's the next argument */
+				precision = va_arg(args, int);
+			}
+			if (precision < 0)
+				precision = 0;
+		}
+
+		/* get the conversion qualifier */
+		qualifier = -1;
+		if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') {
+			qualifier = *fmt;
+			++fmt;
+		}
+
+		switch (*fmt) {
+		case 'c':
+			if (!(flags & LEFT))
+				while (--field_width > 0)
+					*str++ = ' ';
+			*str++ = (unsigned char) va_arg(args, int);
+			while (--field_width > 0)
+				*str++ = ' ';
+			break;
+
+		case 's':
+			s = va_arg(args, char *);
+			if (!s)
+				s = "<NULL>";
+			len = strlen(s);
+			if (precision < 0)
+				precision = len;
+			else if (len > precision)
+				len = precision;
+
+			if (!(flags & LEFT))
+				while (len < field_width--)
+					*str++ = ' ';
+			for (i = 0; i < len; ++i)
+				*str++ = *s++;
+			while (len < field_width--)
+				*str++ = ' ';
+			break;
+
+		case 'o':
+			str = number(str, va_arg(args, unsigned long), 8,
+				field_width, precision, flags);
+			break;
+
+		case 'p':
+			if (field_width == -1) {
+				field_width = 8;
+				flags |= ZEROPAD;
+			}
+			str = number(str,
+				(unsigned long) va_arg(args, void *), 16,
+				field_width, precision, flags);
+			break;
+
+		case 'x':
+			flags |= SMALL;
+		case 'X':
+			str = number(str, va_arg(args, unsigned long), 16,
+				field_width, precision, flags);
+			break;
+
+		case 'd':
+		case 'i':
+			flags |= SIGN;
+		case 'u':
+			str = number(str, va_arg(args, unsigned long), 10,
+				field_width, precision, flags);
+			break;
+
+		case 'n':
+			ip = va_arg(args, int *);
+			*ip = (str - buf);
+			break;
+
+		default:
+			if (*fmt != '%')
+				*str++ = '%';
+			if (*fmt)
+				*str++ = *fmt;
+			else
+				--fmt;
+			break;
+		}
+	}
+	*str = '\0';
+	return str-buf;
+}
+
+
+int sprintf(char * buf, const char *fmt, ...)
+{
+	va_list args;
+	int i;
+
+	va_start(args, fmt);
+	i=vsprintf(buf,fmt,args);
+	va_end(args);
+	return i;
+}
+