kernel/printk.c

   1 /**
   2  *  thunix/kernel/printk.c
   3  *
   4  *  Just one printf-like function that's printk
   5  *
   6  */
   7 #include <stdarg.h>
   8 #include <stddef.h>
   9 #include <console.h>
  10
  11
  12 extern int vsprintf (char *buf, const char *fmt, va_list args);
  13
  14 int printk(const char *fmt, ...)
  15 {
  16         char buf[1024];
  17         va_list args;
  18         int i;
  19
  20         va_start(args,fmt);
  21         i = vsprintf(buf, fmt, args);
  22         va_end(args);
  23
  24         con_write(buf, i);
  25
  26 /*
  27         __asm__("push %%fs\n\t"
  28                 "push %%ds\n\t"
  29                 "pop  %%fs\n\t"
  30                 "push %0  \n\t"
  31                 "push $buf\n\t"
  32                 "call con_write\n\t"
  33                 "addl $4, %%esp\n\t"
  34                 "pop %0\n\t"
  35                 "pop %%fs"
  36                 ::"r"(i));
  37 */
  38         return i;
  39 }
  40
  41 int sprintk(char *buf, const char *fmt, ...)
  42 {
  43         va_list args;
  44         int i;
  45
  46         va_start(args,fmt);
  47         i = vsprintf(buf, fmt, args);
  48         va_end(args);
  49
  50         return i;
  51 }