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, Boston, MA 02111-1307, USA.  */
  20
  21 /*****************************************************************************
  22  * Definitions to target GDB to an i960 debugged over a serial line.
  23  ******************************************************************************/
  24
  25 #include "i960/tm-i960.h"
  26
  27 /* forward declarations */
  28 #ifdef __STDC__
  29 struct frame_info;
  30 #endif
  31
  32 /* Override the standard gdb prompt when compiled for this target.  */
  33
  34 #define DEFAULT_PROMPT  "(gdb960) "
  35
  36 /* Additional command line options accepted by nindy gdb's, for handling
  37    the remote-nindy.c interface.  These should really be target-specific
  38    rather than architecture-specific.  */
  39
  40 extern int nindy_old_protocol;  /* nonzero if old NINDY serial protocol */
  41 extern int nindy_initial_brk;   /* Send a BREAK to reset board first */
  42 extern char *nindy_ttyname;     /* Name of serial port to talk to nindy */
  43
  44 #define ADDITIONAL_OPTIONS \
  45         {"O", no_argument, &nindy_old_protocol, 1},     \
  46         {"brk", no_argument, &nindy_initial_brk, 1},    \
  47         {"ser", required_argument, 0, 1004},  /* 1004 is magic cookie for ADDL_CASES */
  48
  49 #define ADDITIONAL_OPTION_CASES \
  50         case 1004:      /* -ser option:  remote nindy auto-start */     \
  51           nindy_ttyname = optarg;       \
  52           break;
  53
  54 #define ADDITIONAL_OPTION_HELP \
  55         "\
  56   -O                Use old protocol to talk to a Nindy target\n\
  57   -brk              Send a break to a Nindy target to reset it.\n\
  58   -ser SERIAL       Open remote Nindy session to SERIAL port.\n\
  59 "
  60
  61 /* If specified on the command line, open tty for talking to nindy,
  62    and download the executable file if one was specified.  */
  63
  64 #define ADDITIONAL_OPTION_HANDLER       \
  65         if (!SET_TOP_LEVEL () && nindy_ttyname) {               \
  66           nindy_open (nindy_ttyname, !batch);                   \
  67           if (!SET_TOP_LEVEL () && execarg) {                   \
  68                 target_load (execarg, !batch);                  \
  69           }                                                     \
  70         }
  71
  72 /* If configured for i960 target, we take control before main loop
  73    and demand that we configure for a nindy target.  */
  74
  75 #define BEFORE_MAIN_LOOP_HOOK   \
  76   nindy_before_main_loop();
  77
  78 extern void
  79 nindy_before_main_loop();               /* In remote-nindy.c */
  80
  81 /* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one
  82    and has no caller.
  83
  84    On the i960, each various target system type defines FRAME_CHAIN_VALID,
  85    since it differs between NINDY and VxWorks, the two currently supported
  86    targets types.  */
  87
  88 extern int nindy_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
  89 #define FRAME_CHAIN_VALID(chain, thisframe) nindy_frame_chain_valid (chain, thisframe)
  90
  91 extern int
  92 nindy_frame_chain_valid();              /* See nindy-tdep.c */
  93
  94 /* Sequence of bytes for breakpoint instruction */
  95
  96 #define BREAKPOINT {0x00, 0x3e, 0x00, 0x66}
  97
  98 /* Amount ip must be decremented by after a breakpoint.
  99  * This is often the number of bytes in BREAKPOINT but not always.
 100  */
 101
 102 #define DECR_PC_AFTER_BREAK 0
 103
 104 #undef REGISTER_CONVERT_TO_VIRTUAL
 105 #undef REGISTER_CONVERT_TO_RAW
 106 #undef REGISTER_CONVERTIBLE