arch/i386-pc/exec/debug_init.c

   1 /*
   2     Copyright © 1995-2017, 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
  12 #include <string.h>
  13
  14 #include "exec_intern.h"
  15
  16 extern void AROS_SLIB_ENTRY(MemoryRawIOInit, Exec, 84)();
  17 extern void AROS_SLIB_ENTRY(MemoryRawPutChar, Exec, 86)(UBYTE chr);
  18
  19 int exec_boot(struct ExecBase *SysBase)
  20 {
  21     struct TagItem *msg = KrnGetBootInfo();
  22     char *cmdline = (char *)LibGetTagData(KRN_CmdLine, 0, msg);
  23
  24     /*
  25      * Enable type of debug output chosen by user.
  26      * 'serial' is handled in libbootconsole.
  27      */
  28     if (strstr(cmdline, "debug=memory"))
  29     {
  30         SetFunction(&SysBase->LibNode, -84 * LIB_VECTSIZE,
  31             AROS_SLIB_ENTRY(MemoryRawIOInit, Exec, 84));
  32         SetFunction(&SysBase->LibNode, -86 * LIB_VECTSIZE,
  33             AROS_SLIB_ENTRY(MemoryRawPutChar, Exec, 86));
  34     }
  35     RawIOInit();
  36
  37     return 1;
  38 }
  39
  40 ADD2INITLIB(exec_boot, 0)