gdb/config/i960/tm-nindy960.h

   1 /* Parameters for Intel 960 running NINDY monitor, for GDB, the GNU debugger.
   2    Copyright (C) 1990-1991 Free Software Foundation, Inc.
   3    Contributed by Intel Corporation and Cygnus Support.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 /*****************************************************************************
  23  * Definitions to target GDB to an i960 debugged over a serial line.
  24  ******************************************************************************/
  25
  26 #include "i960/tm-i960.h"
  27
  28 /* forward declarations */
  29 #ifdef __STDC__
  30 struct frame_info;
  31 #endif
  32
  33 /* Override the standard gdb prompt when compiled for this target.  */
  34
  35 #define DEFAULT_PROMPT  "(gdb960) "
  36
  37 /* Additional command line options accepted by nindy gdb's, for handling
  38    the remote-nindy.c interface.  These should really be target-specific
  39    rather than architecture-specific.  */
  40
  41 extern int nindy_old_protocol;  /* nonzero if old NINDY serial protocol */
  42 extern int nindy_initial_brk;   /* Send a BREAK to reset board first */
  43 extern char *nindy_ttyname;     /* Name of serial port to talk to nindy */
  44
  45 #define ADDITIONAL_OPTIONS \
  46         {"O", no_argument, &nindy_old_protocol, 1},     \
  47         {"brk", no_argument, &nindy_initial_brk, 1},    \
  48         {"ser", required_argument, 0, 1004},    /* 1004 is magic cookie for ADDL_CASES */
  49
  50 #define ADDITIONAL_OPTION_CASES \
  51         case 1004:      /* -ser option:  remote nindy auto-start */     \
  52           nindy_ttyname = optarg;       \
  53           break;
  54
  55 #define ADDITIONAL_OPTION_HELP \
  56         "\
  57   -O                Use old protocol to talk to a Nindy target\n\
  58   -brk              Send a break to a Nindy target to reset it.\n\
  59   -ser SERIAL       Open remote Nindy session to SERIAL port.\n\
  60 "
  61
  62 /* If specified on the command line, open tty for talking to nindy,
  63    and download the executable file if one was specified.  */
  64
  65 #define ADDITIONAL_OPTION_HANDLER       \
  66         if (!SET_TOP_LEVEL () && nindy_ttyname) {               \
  67           nindy_open (nindy_ttyname, !batch);                   \
  68           if (!SET_TOP_LEVEL () && execarg) {                   \
  69                 target_load (execarg, !batch);                  \
  70           }                                                     \
  71         }
  72
  73 /* If configured for i960 target, we take control before main loop
  74    and demand that we configure for a nindy target.  */
  75
  76 #define BEFORE_MAIN_LOOP_HOOK   \
  77   nindy_before_main_loop();
  78
  79 extern void
  80   nindy_before_main_loop ();    /* In remote-nindy.c */
  81
  82 /* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one
  83    and has no caller.
  84
  85    On the i960, each various target system type defines FRAME_CHAIN_VALID,
  86    since it differs between NINDY and VxWorks, the two currently supported
  87    targets types.  */
  88
  89 extern int nindy_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
  90 #define FRAME_CHAIN_VALID(chain, thisframe) nindy_frame_chain_valid (chain, thisframe)
  91
  92 extern int
  93   nindy_frame_chain_valid ();   /* See nindy-tdep.c */
  94
  95 /* Sequence of bytes for breakpoint instruction */
  96
  97 #define BREAKPOINT {0x00, 0x3e, 0x00, 0x66}
  98
  99 /* Amount ip must be decremented by after a breakpoint.
 100  * This is often the number of bytes in BREAKPOINT but not always.
 101  */
 102
 103 #define DECR_PC_AFTER_BREAK 0
 104
 105 #undef REGISTER_CONVERT_TO_VIRTUAL
 106 #undef REGISTER_CONVERT_TO_RAW
 107 #undef REGISTER_CONVERTIBLE