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5076de82 FF |
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 | |
6c9638b4 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
5076de82 FF |
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 | /* Override the standard gdb prompt when compiled for this target. */ | |
28 | ||
29 | #define DEFAULT_PROMPT "(gdb960) " | |
30 | ||
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. */ | |
34 | ||
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 */ | |
38 | ||
39 | #define ADDITIONAL_OPTIONS \ | |
40 | {"O", no_argument, &nindy_old_protocol, 1}, \ | |
41 | {"brk", no_argument, &nindy_initial_brk, 1}, \ | |
42 | {"ser", required_argument, 0, 1004}, /* 1004 is magic cookie for ADDL_CASES */ | |
43 | ||
44 | #define ADDITIONAL_OPTION_CASES \ | |
45 | case 1004: /* -ser option: remote nindy auto-start */ \ | |
46 | nindy_ttyname = optarg; \ | |
47 | break; | |
48 | ||
49 | #define ADDITIONAL_OPTION_HELP \ | |
50 | "\ | |
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 | -ser SERIAL Open remote Nindy session to SERIAL port.\n\ | |
54 | " | |
55 | ||
56 | /* If specified on the command line, open tty for talking to nindy, | |
57 | and download the executable file if one was specified. */ | |
58 | ||
59 | #define ADDITIONAL_OPTION_HANDLER \ | |
9748446f | 60 | if (!SET_TOP_LEVEL () && nindy_ttyname) { \ |
5076de82 | 61 | nindy_open (nindy_ttyname, !batch); \ |
9748446f | 62 | if (!SET_TOP_LEVEL () && execarg) { \ |
5076de82 FF |
63 | target_load (execarg, !batch); \ |
64 | } \ | |
65 | } | |
66 | ||
67 | /* If configured for i960 target, we take control before main loop | |
68 | and demand that we configure for a nindy target. */ | |
69 | ||
70 | #define BEFORE_MAIN_LOOP_HOOK \ | |
71 | nindy_before_main_loop(); | |
72 | ||
73 | extern void | |
74 | nindy_before_main_loop(); /* In remote-nindy.c */ | |
75 | ||
5076de82 FF |
76 | /* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one |
77 | and has no caller. | |
78 | ||
79 | On the i960, each various target system type defines FRAME_CHAIN_VALID, | |
80 | since it differs between NINDY and VxWorks, the two currently supported | |
81 | targets types. */ | |
82 | ||
83 | #define FRAME_CHAIN_VALID(chain, thisframe) \ | |
84 | nindy_frame_chain_valid (chain, thisframe) | |
85 | ||
86 | extern int | |
87 | nindy_frame_chain_valid(); /* See nindy-tdep.c */ | |
88 | ||
89 | /* Sequence of bytes for breakpoint instruction */ | |
90 | ||
91 | #define BREAKPOINT {0x00, 0x3e, 0x00, 0x66} | |
92 | ||
93 | /* Amount ip must be decremented by after a breakpoint. | |
94 | * This is often the number of bytes in BREAKPOINT but not always. | |
95 | */ | |
96 | ||
97 | #define DECR_PC_AFTER_BREAK 0 |