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 struct frame_info;
  30
  31 /* Override the standard gdb prompt when compiled for this target.  */
  32
  33 #define DEFAULT_PROMPT  "(gdb960) "
  34
  35 /* Additional command line options accepted by nindy gdb's, for handling
  36    the remote-nindy.c interface.  These should really be target-specific
  37    rather than architecture-specific.  */
  38
  39 extern int nindy_old_protocol;  /* nonzero if old NINDY serial protocol */
  40 extern int nindy_initial_brk;   /* Send a BREAK to reset board first */
  41 extern char *nindy_ttyname;     /* Name of serial port to talk to nindy */
  42
  43 #define ADDITIONAL_OPTIONS \
  44         {"O", no_argument, &nindy_old_protocol, 1},     \
  45         {"brk", no_argument, &nindy_initial_brk, 1},    \
  46         {"ser", required_argument, 0, 1004},    /* 1004 is magic cookie for ADDL_CASES */
  47
  48 #define ADDITIONAL_OPTION_CASES \
  49         case 1004:      /* -ser option:  remote nindy auto-start */     \
  50           nindy_ttyname = optarg;       \
  51           break;
  52
  53 #define ADDITIONAL_OPTION_HELP \
  54         "\
  55   -O                Use old protocol to talk to a Nindy target\n\
  56   -brk              Send a break to a Nindy target to reset it.\n\
  57   -ser SERIAL       Open remote Nindy session to SERIAL port.\n\
  58 "
  59
  60 /* If specified on the command line, open tty for talking to nindy,
  61    and download the executable file if one was specified.  */
  62
  63 #define ADDITIONAL_OPTION_HANDLER       \
  64         if (!SET_TOP_LEVEL () && nindy_ttyname) {               \
  65           nindy_open (nindy_ttyname, !batch);                   \
  66           if (!SET_TOP_LEVEL () && execarg) {                   \
  67                 target_load (execarg, !batch);                  \
  68           }                                                     \
  69         }
  70
  71 /* If configured for i960 target, we take control before main loop
  72    and demand that we configure for a nindy target.  */
  73
  74 #define BEFORE_MAIN_LOOP_HOOK   \
  75   nindy_before_main_loop();
  76
  77 extern void
  78   nindy_before_main_loop ();    /* In remote-nindy.c */
  79
  80 /* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one
  81    and has no caller.
  82
  83    On the i960, each various target system type defines FRAME_CHAIN_VALID,
  84    since it differs between NINDY and VxWorks, the two currently supported
  85    targets types.  */
  86
  87 extern int nindy_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
  88 #define FRAME_CHAIN_VALID(chain, thisframe) nindy_frame_chain_valid (chain, thisframe)
  89
  90 extern int
  91   nindy_frame_chain_valid ();   /* See nindy-tdep.c */
  92
  93 /* Sequence of bytes for breakpoint instruction */
  94
  95 #define BREAKPOINT {0x00, 0x3e, 0x00, 0x66}
  96
  97 /* Amount ip must be decremented by after a breakpoint.
  98  * This is often the number of bytes in BREAKPOINT but not always.
  99  */
 100
 101 #define DECR_PC_AFTER_BREAK 0
 102
 103 #undef REGISTER_CONVERT_TO_VIRTUAL
 104 #undef REGISTER_CONVERT_TO_RAW
 105 #undef REGISTER_CONVERTIBLE