arch/mips/include/asm/break.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 1995, 2003 by Ralf Baechle
   7  * Copyright (C) 1999 Silicon Graphics, Inc.
   8  */
   9 #ifndef __ASM_BREAK_H
  10 #define __ASM_BREAK_H
  11
  12 /*
  13  * The following break codes are or were in use for specific purposes in
  14  * other MIPS operating systems.  Linux/MIPS doesn't use all of them.  The
  15  * unused ones are here as placeholders; we might encounter them in
  16  * non-Linux/MIPS object files or make use of them in the future.
  17  */
  18 #define BRK_USERBP      0       /* User bp (used by debuggers) */
  19 #define BRK_KERNELBP    1       /* Break in the kernel */
  20 #define BRK_ABORT       2       /* Sometimes used by abort(3) to SIGIOT */
  21 #define BRK_BD_TAKEN    3       /* For bd slot emulation - not implemented */
  22 #define BRK_BD_NOTTAKEN 4       /* For bd slot emulation - not implemented */
  23 #define BRK_SSTEPBP     5       /* User bp (used by debuggers) */
  24 #define BRK_OVERFLOW    6       /* Overflow check */
  25 #define BRK_DIVZERO     7       /* Divide by zero check */
  26 #define BRK_RANGE       8       /* Range error check */
  27 #define BRK_STACKOVERFLOW 9     /* For Ada stackchecking */
  28 #define BRK_NORLD       10      /* No rld found - not used by Linux/MIPS */
  29 #define _BRK_THREADBP   11      /* For threads, user bp (used by debuggers) */
  30 #define BRK_BUG         512     /* Used by BUG() */
  31 #define BRK_KDB         513     /* Used in KDB_ENTER() */
  32 #define BRK_MEMU        514     /* Used by FPU emulator */
  33 #define BRK_MULOVF      1023    /* Multiply overflow */
  34
  35 #endif /* __ASM_BREAK_H */