#include <stdarg.h>
#include <serial.h>
-static char *bf;
-static char zs;
+struct printf_info {
+ char *bf; /* Digit buffer */
+ char zs; /* non-zero if a digit has been written */
+ char *outstr; /* Next output position for sprintf() */
-static void out(char c)
+ /* Output a character */
+ void (*putc)(struct printf_info *info, char ch);
+};
+
+void putc_normal(struct printf_info *info, char ch)
+{
+ putc(ch);
+}
+
+static void out(struct printf_info *info, char c)
{
- *bf++ = c;
+ *info->bf++ = c;
}
-static void out_dgt(char dgt)
+static void out_dgt(struct printf_info *info, char dgt)
{
- out(dgt + (dgt < 10 ? '0' : 'a' - 10));
- zs = 1;
+ out(info, dgt + (dgt < 10 ? '0' : 'a' - 10));
+ info->zs = 1;
}
-static void div_out(unsigned int *num, unsigned int div)
+static void div_out(struct printf_info *info, unsigned long *num,
+ unsigned long div)
{
unsigned char dgt = 0;
dgt++;
}
- if (zs || dgt > 0)
- out_dgt(dgt);
+ if (info->zs || dgt > 0)
+ out_dgt(info, dgt);
}
-int vprintf(const char *fmt, va_list va)
+int _vprintf(struct printf_info *info, const char *fmt, va_list va)
{
char ch;
char *p;
- unsigned int num;
+ unsigned long num;
char buf[12];
- unsigned int div;
+ unsigned long div;
while ((ch = *(fmt++))) {
if (ch != '%') {
- putc(ch);
+ info->putc(info, ch);
} else {
- char lz = 0;
- char w = 0;
+ bool lz = false;
+ int width = 0;
+ bool islong = false;
ch = *(fmt++);
+ if (ch == '-')
+ ch = *(fmt++);
+
if (ch == '0') {
ch = *(fmt++);
lz = 1;
}
if (ch >= '0' && ch <= '9') {
- w = 0;
+ width = 0;
while (ch >= '0' && ch <= '9') {
- w = (w * 10) + ch - '0';
+ width = (width * 10) + ch - '0';
ch = *fmt++;
}
}
- bf = buf;
- p = bf;
- zs = 0;
+ if (ch == 'l') {
+ ch = *(fmt++);
+ islong = true;
+ }
+
+ info->bf = buf;
+ p = info->bf;
+ info->zs = 0;
switch (ch) {
- case 0:
+ case '\0':
goto abort;
case 'u':
case 'd':
- num = va_arg(va, unsigned int);
- if (ch == 'd' && (int)num < 0) {
- num = -(int)num;
- out('-');
+ div = 1000000000;
+ if (islong) {
+ num = va_arg(va, unsigned long);
+ if (sizeof(long) > 4)
+ div *= div * 10;
+ } else {
+ num = va_arg(va, unsigned int);
+ }
+
+ if (ch == 'd') {
+ if (islong && (long)num < 0) {
+ num = -(long)num;
+ out(info, '-');
+ } else if (!islong && (int)num < 0) {
+ num = -(int)num;
+ out(info, '-');
+ }
}
if (!num) {
- out_dgt(0);
+ out_dgt(info, 0);
} else {
- for (div = 1000000000; div; div /= 10)
- div_out(&num, div);
+ for (; div; div /= 10)
+ div_out(info, &num, div);
}
break;
case 'x':
- num = va_arg(va, unsigned int);
+ if (islong) {
+ num = va_arg(va, unsigned long);
+ div = 1UL << (sizeof(long) * 8 - 4);
+ } else {
+ num = va_arg(va, unsigned int);
+ div = 0x10000000;
+ }
if (!num) {
- out_dgt(0);
+ out_dgt(info, 0);
} else {
- for (div = 0x10000000; div; div /= 0x10)
- div_out(&num, div);
+ for (; div; div /= 0x10)
+ div_out(info, &num, div);
}
break;
case 'c':
- out((char)(va_arg(va, int)));
+ out(info, (char)(va_arg(va, int)));
break;
case 's':
p = va_arg(va, char*);
break;
case '%':
- out('%');
+ out(info, '%');
default:
break;
}
- *bf = 0;
- bf = p;
- while (*bf++ && w > 0)
- w--;
- while (w-- > 0)
- putc(lz ? '0' : ' ');
+ *info->bf = 0;
+ info->bf = p;
+ while (*info->bf++ && width > 0)
+ width--;
+ while (width-- > 0)
+ info->putc(info, lz ? '0' : ' ');
if (p) {
while ((ch = *p++))
- putc(ch);
+ info->putc(info, ch);
}
}
}
return 0;
}
+int vprintf(const char *fmt, va_list va)
+{
+ struct printf_info info;
+
+ info.putc = putc_normal;
+ return _vprintf(&info, fmt, va);
+}
+
int printf(const char *fmt, ...)
{
+ struct printf_info info;
+
va_list va;
int ret;
+ info.putc = putc_normal;
va_start(va, fmt);
- ret = vprintf(fmt, va);
+ ret = _vprintf(&info, fmt, va);
va_end(va);
return ret;
}
+
+static void putc_outstr(struct printf_info *info, char ch)
+{
+ *info->outstr++ = ch;
+}
+
+int sprintf(char *buf, const char *fmt, ...)
+{
+ struct printf_info info;
+ va_list va;
+ int ret;
+
+ va_start(va, fmt);
+ info.outstr = buf;
+ info.putc = putc_outstr;
+ ret = _vprintf(&info, fmt, va);
+ va_end(va);
+ *info.outstr = '\0';
+
+ return ret;
+}
+
+/* Note that size is ignored */
+int snprintf(char *buf, size_t size, const char *fmt, ...)
+{
+ struct printf_info info;
+ va_list va;
+ int ret;
+
+ va_start(va, fmt);
+ info.outstr = buf;
+ info.putc = putc_outstr;
+ ret = _vprintf(&info, fmt, va);
+ va_end(va);
+ *info.outstr = '\0';
+
+ return ret;
+}
+
+void __assert_fail(const char *assertion, const char *file, unsigned line,
+ const char *function)
+{
+ /* This will not return */
+ printf("%s:%u: %s: Assertion `%s' failed.", file, line, function,
+ assertion);
+ hang();
+}
projects / oweals / u-boot.git / blobdiff