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c906108c | 1 | /* Remote debugging interface for ABug Rom monitor for GDB, the GNU debugger. |
6aba47ca | 2 | Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2007 |
b6ba6518 | 3 | Free Software Foundation, Inc. |
c906108c SS |
4 | |
5 | Written by Rob Savoye of Cygnus Support | |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
21 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
22 | Boston, MA 02110-1301, USA. */ | |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "gdbcore.h" | |
26 | #include "target.h" | |
27 | #include "monitor.h" | |
28 | #include "serial.h" | |
4e052eda | 29 | #include "regcache.h" |
c906108c | 30 | |
32eeb91a AS |
31 | #include "m68k-tdep.h" |
32 | ||
c906108c SS |
33 | /* Prototypes for local functions. */ |
34 | ||
a14ed312 | 35 | static void abug_open (char *args, int from_tty); |
c906108c SS |
36 | |
37 | static void | |
fba45db2 | 38 | abug_supply_register (char *regname, int regnamelen, char *val, int vallen) |
c906108c SS |
39 | { |
40 | int regno; | |
41 | ||
42 | if (regnamelen != 2) | |
43 | return; | |
44 | ||
45 | switch (regname[0]) | |
46 | { | |
47 | case 'S': | |
48 | if (regname[1] != 'R') | |
49 | return; | |
50 | regno = PS_REGNUM; | |
51 | break; | |
52 | case 'P': | |
53 | if (regname[1] != 'C') | |
54 | return; | |
55 | regno = PC_REGNUM; | |
56 | break; | |
57 | case 'D': | |
58 | if (regname[1] < '0' || regname[1] > '7') | |
59 | return; | |
32eeb91a | 60 | regno = regname[1] - '0' + M68K_D0_REGNUM; |
c906108c SS |
61 | break; |
62 | case 'A': | |
63 | if (regname[1] < '0' || regname[1] > '7') | |
64 | return; | |
32eeb91a | 65 | regno = regname[1] - '0' + M68K_A0_REGNUM; |
c906108c SS |
66 | break; |
67 | default: | |
68 | return; | |
69 | } | |
70 | ||
71 | monitor_supply_register (regno, val); | |
72 | } | |
73 | ||
74 | /* | |
75 | * This array of registers needs to match the indexes used by GDB. The | |
76 | * whole reason this exists is because the various ROM monitors use | |
77 | * different names than GDB does, and don't support all the | |
78 | * registers either. So, typing "info reg sp" becomes an "A7". | |
79 | */ | |
80 | ||
1c617db8 GS |
81 | static const char * |
82 | abug_regname (int index) | |
c906108c | 83 | { |
1c617db8 GS |
84 | static char *regnames[] = |
85 | { | |
86 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", | |
87 | "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", | |
88 | "PC", | |
89 | }; | |
90 | ||
91 | if ((index >= (sizeof (regnames) / sizeof (regnames[0]))) | |
92 | || (index < 0) || (index >= NUM_REGS)) | |
93 | return NULL; | |
94 | else | |
95 | return regnames[index]; | |
96 | } | |
c906108c SS |
97 | |
98 | /* | |
99 | * Define the monitor command strings. Since these are passed directly | |
100 | * through to a printf style function, we need can include formatting | |
101 | * strings. We also need a CR or LF on the end. | |
102 | */ | |
103 | ||
104 | static struct target_ops abug_ops; | |
105 | ||
c5aa993b JM |
106 | static char *abug_inits[] = |
107 | {"\r", NULL}; | |
c906108c | 108 | |
c5aa993b | 109 | static struct monitor_ops abug_cmds; |
c906108c | 110 | |
c5aa993b JM |
111 | static void |
112 | init_abug_cmds (void) | |
c906108c | 113 | { |
c5aa993b JM |
114 | abug_cmds.flags = MO_CLR_BREAK_USES_ADDR; |
115 | abug_cmds.init = abug_inits; /* Init strings */ | |
116 | abug_cmds.cont = "g\r"; /* continue command */ | |
117 | abug_cmds.step = "t\r"; /* single step */ | |
118 | abug_cmds.stop = NULL; /* interrupt command */ | |
119 | abug_cmds.set_break = "br %x\r"; /* set a breakpoint */ | |
120 | abug_cmds.clr_break = "nobr %x\r"; /* clear a breakpoint */ | |
121 | abug_cmds.clr_all_break = "nobr\r"; /* clear all breakpoints */ | |
122 | abug_cmds.fill = "bf %x:%x %x;b\r"; /* fill (start count val) */ | |
123 | abug_cmds.setmem.cmdb = "ms %x %02x\r"; /* setmem.cmdb (addr, value) */ | |
124 | abug_cmds.setmem.cmdw = "ms %x %04x\r"; /* setmem.cmdw (addr, value) */ | |
125 | abug_cmds.setmem.cmdl = "ms %x %08x\r"; /* setmem.cmdl (addr, value) */ | |
126 | abug_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ | |
127 | abug_cmds.setmem.resp_delim = NULL; /* setreg.resp_delim */ | |
128 | abug_cmds.setmem.term = NULL; /* setreg.term */ | |
129 | abug_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */ | |
130 | abug_cmds.getmem.cmdb = "md %x:%x;b\r"; /* getmem.cmdb (addr, len) */ | |
131 | abug_cmds.getmem.cmdw = "md %x:%x;b\r"; /* getmem.cmdw (addr, len) */ | |
132 | abug_cmds.getmem.cmdl = "md %x:%x;b\r"; /* getmem.cmdl (addr, len) */ | |
133 | abug_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */ | |
134 | abug_cmds.getmem.resp_delim = " "; /* getmem.resp_delim */ | |
135 | abug_cmds.getmem.term = NULL; /* getmem.term */ | |
136 | abug_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */ | |
137 | abug_cmds.setreg.cmd = "rm %s %x\r"; /* setreg.cmd (name, value) */ | |
138 | abug_cmds.setreg.resp_delim = "="; /* setreg.resp_delim */ | |
139 | abug_cmds.setreg.term = "? "; /* setreg.term */ | |
140 | abug_cmds.setreg.term_cmd = ".\r"; /* setreg.term_cmd */ | |
141 | abug_cmds.getreg.cmd = "rm %s\r"; /* getreg.cmd (name) */ | |
142 | abug_cmds.getreg.resp_delim = "="; /* getreg.resp_delim */ | |
143 | abug_cmds.getreg.term = "? "; /* getreg.term */ | |
144 | abug_cmds.getreg.term_cmd = ".\r"; /* getreg.term_cmd */ | |
145 | abug_cmds.dump_registers = "rd\r"; /* dump_registers */ | |
146 | abug_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */ | |
23a6d369 | 147 | abug_cmds.supply_register = abug_supply_register; |
c5aa993b JM |
148 | abug_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */ |
149 | abug_cmds.load = "lo 0\r"; /* download command */ | |
150 | abug_cmds.loadresp = "\n"; /* load response */ | |
151 | abug_cmds.prompt = "135Bug>"; /* monitor command prompt */ | |
152 | abug_cmds.line_term = "\r"; /* end-of-line terminator */ | |
153 | abug_cmds.cmd_end = NULL; /* optional command terminator */ | |
154 | abug_cmds.target = &abug_ops; /* target operations */ | |
155 | abug_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ | |
1c617db8 GS |
156 | abug_cmds.regnames = NULL; /* registers names */ |
157 | abug_cmds.regname = abug_regname; | |
c5aa993b JM |
158 | abug_cmds.magic = MONITOR_OPS_MAGIC; /* magic */ |
159 | }; | |
c906108c SS |
160 | |
161 | static void | |
fba45db2 | 162 | abug_open (char *args, int from_tty) |
c906108c SS |
163 | { |
164 | monitor_open (args, &abug_cmds, from_tty); | |
165 | } | |
166 | ||
a78f21af AC |
167 | extern initialize_file_ftype _initialize_abug_rom; /* -Wmissing-prototypes */ |
168 | ||
c906108c | 169 | void |
fba45db2 | 170 | _initialize_abug_rom (void) |
c906108c | 171 | { |
c5aa993b | 172 | init_abug_cmds (); |
c906108c SS |
173 | init_monitor_ops (&abug_ops); |
174 | ||
175 | abug_ops.to_shortname = "abug"; | |
323e0a4a AC |
176 | abug_ops.to_longname = _("ABug monitor"); |
177 | abug_ops.to_doc = _("Debug via the ABug monitor.\n\ | |
178 | Specify the serial device it is connected to (e.g. /dev/ttya)."); | |
c906108c SS |
179 | abug_ops.to_open = abug_open; |
180 | ||
181 | add_target (&abug_ops); | |
182 | } |