arch/i386-pc/exec/debug_init.c

   1 /*
   2     Copyright © 1995-2011, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Early bootup section
   6     Lang: english
   7 */
   8
   9 #include <aros/symbolsets.h>
  10 #include <proto/exec.h>
  11 #include <proto/kernel.h>
  12
  13 #include <string.h>
  14
  15 #include "exec_intern.h"
  16
  17 extern void AROS_SLIB_ENTRY(MemoryRawIOInit, Exec, 84)();
  18 extern void AROS_SLIB_ENTRY(MemoryRawPutChar, Exec, 86)(UBYTE chr);
  19
  20 int exec_boot(struct ExecBase *SysBase)
  21 {
  22     struct TagItem *msg = KrnGetBootInfo();
  23     char *cmdline = (char *)LibGetTagData(KRN_CmdLine, 0, msg);
  24
  25     /*
  26      * Enable type of debug output chosen by user.
  27      * 'serial' is handled in libbootconsole.
  28      */
  29     if (strstr(cmdline, "debug=memory"))
  30     {
  31         SetFunction(&SysBase->LibNode, -84 * LIB_VECTSIZE,
  32             AROS_SLIB_ENTRY(MemoryRawIOInit, Exec, 84));
  33         SetFunction(&SysBase->LibNode, -86 * LIB_VECTSIZE,
  34             AROS_SLIB_ENTRY(MemoryRawPutChar, Exec, 86));
  35     }
  36     RawIOInit();
  37
  38     return 1;
  39 }
  40
  41 ADD2INITLIB(exec_boot, 0)