/** * Kernel putk (e.g. puts) function requiring minimal infrastrure. */ int putk(const char *s) { const char *p; int len_out = 0; for (p=s ; *p ; p++, len_out++ ) rtems_putc(*p); rtems_putc('\n'); return len_out + 1; }
static void vprintk_putchar( int c, void *arg ) { rtems_putc((char) c); }
/* * vprintk * * A simplified version of printf intended for use when the * console is not yet initialized or in ISR's. * * Arguments: * as in printf: fmt - format string, ... - unnamed arguments. */ void vprintk( const char *fmt, va_list ap ) { for (; *fmt != '\0'; fmt++) { unsigned base = 0; unsigned width = 0; bool lflag = false; bool minus = false; bool sign = false; char lead = ' '; char c; if (*fmt != '%') { rtems_putc(*fmt); continue; } fmt++; if (*fmt == '0' ) { lead = '0'; fmt++; } if (*fmt == '-' ) { minus = true; fmt++; } while (*fmt >= '0' && *fmt <= '9' ) { width *= 10; width += ((unsigned) *fmt - '0'); fmt++; } if ((c = *fmt) == 'l') { lflag = true; c = *++fmt; } if ( c == 'c' ) { /* need a cast here since va_arg() only takes fully promoted types */ char chr = (char) va_arg(ap, int); rtems_putc(chr); continue; } if ( c == 's' ) { unsigned i, len; char *s, *str; str = va_arg(ap, char *); if ( str == NULL ) { str = ""; } /* calculate length of string */ for ( len=0, s=str ; *s ; len++, s++ ) ; /* leading spaces */ if ( !minus ) for ( i=len ; i<width ; i++ ) rtems_putc(' '); /* no width option */ if (width == 0) { width = len; } /* output the string */ for ( i=0 ; i<width && *str ; str++ ) rtems_putc(*str); /* trailing spaces */ if ( minus ) for ( i=len ; i<width ; i++ ) rtems_putc(' '); continue; }