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.
5 This file is part of GDB.
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.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /*****************************************************************************
22 * Definitions to target GDB to an i960 debugged over a serial line.
23 ******************************************************************************/
27 /* Override the standard gdb prompt when compiled for this target. */
29 #define DEFAULT_PROMPT "(gdb960) "
31 /* Additional command line options accepted by nindy gdb's, for handling
32 the remote-nindy.c interface. These should really be target-specific
33 rather than architecture-specific. */
35 extern int nindy_old_protocol
; /* nonzero if old NINDY serial protocol */
36 extern int nindy_initial_brk
; /* Send a BREAK to reset board first */
37 extern char *nindy_ttyname
; /* Name of serial port to talk to nindy */
39 #define ADDITIONAL_OPTIONS \
40 {"O", 0, &nindy_old_protocol, 1}, \
41 {"brk", 0, &nindy_initial_brk, 1}, \
42 {"r", 1, 0, 1004}, /* 1004 is magic cookie for ADDL_CASES */
44 #define ADDITIONAL_OPTION_CASES \
45 case 1004: /* -r option: remote nindy auto-start */ \
46 nindy_ttyname = optarg; \
49 #define ADDITIONAL_OPTION_HELP \
51 -O Use old protocol to talk to a Nindy target\n\
52 -brk Send a break to a Nindy target to reset it.\n\
53 -r SERIAL Open remote Nindy session to SERIAL port.\n\
56 /* If specified on the command line, open tty for talking to nindy,
57 and download the executable file if one was specified. */
59 #define ADDITIONAL_OPTION_HANDLER \
60 if (!setjmp (to_top_level) && nindy_ttyname) { \
61 nindy_open (nindy_ttyname, !batch); \
62 if ( !setjmp(to_top_level) && execarg ) { \
63 target_load (execarg, !batch); \
67 /* If configured for i960 target, we take control before main loop
68 and demand that we configure for a nindy target. */
70 #define BEFORE_MAIN_LOOP_HOOK \
71 nindy_before_main_loop();
73 /* Address of end of stack space.
74 * This probably doesn't matter for nindy, because it's only used
75 * in manipulation of core files, which we don't support.
78 #define STACK_END_ADDR (0xfe000000)
80 /* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one
81 and has no caller. In that case, FRAME_CHAIN_COMBINE is not used.
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
87 #define FRAME_CHAIN_VALID(chain, thisframe) \
88 nindy_frame_chain_valid (chain, thisframe)
90 extern int nindy_frame_chain_valid(); /* See nindy-tdep.c */
92 /* Sequence of bytes for breakpoint instruction */
94 #define BREAKPOINT {0x00, 0x3e, 0x00, 0x66}
96 /* Amount ip must be decremented by after a breakpoint.
97 * This is often the number of bytes in BREAKPOINT but not always.
100 #define DECR_PC_AFTER_BREAK 0
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