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1 /* Remote debugging interface for Renesas HMS Monitor Version 1.0
2 Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2007
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support. Written by Steve Chamberlain
5 (sac@cygnus.com).
6
7 This file is part of GDB.
8
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.
13
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.
18
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
21 Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 Boston, MA 02110-1301, USA. */
23
24 #include "defs.h"
25 #include "gdbcore.h"
26 #include "target.h"
27 #include "monitor.h"
28 #include "serial.h"
29 #include "regcache.h"
30
31 #define CCR_REGNUM 8
32
33 static void hms_open (char *args, int from_tty);
34 static void
35 hms_supply_register (char *regname, int regnamelen, char *val, int vallen)
36 {
37 int regno;
38
39 if (regnamelen != 2)
40 return;
41 if (regname[0] != 'P')
42 return;
43 /* We scan off all the registers in one go */
44
45 val = monitor_supply_register (PC_REGNUM, val);
46 /* Skip the ccr string */
47 while (*val != '=' && *val)
48 val++;
49
50 val = monitor_supply_register (CCR_REGNUM, val + 1);
51
52 /* Skip up to rest of regs */
53 while (*val != '=' && *val)
54 val++;
55
56 for (regno = 0; regno < 7; regno++)
57 {
58 val = monitor_supply_register (regno, val + 1);
59 }
60 }
61
62 /*
63 * This array of registers needs to match the indexes used by GDB. The
64 * whole reason this exists is because the various ROM monitors use
65 * different names than GDB does, and don't support all the
66 * registers either. So, typing "info reg sp" becomes a "r30".
67 */
68
69 static char *hms_regnames[] =
70 {
71 "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "CCR", "PC", "", "", "", ""
72 };
73
74 /*
75 * Define the monitor command strings. Since these are passed directly
76 * through to a printf style function, we need can include formatting
77 * strings. We also need a CR or LF on the end.
78 */
79
80 static struct target_ops hms_ops;
81
82 static char *hms_inits[] =
83 {"\003", /* Resets the prompt, and clears repeated cmds */
84 NULL};
85
86 static struct monitor_ops hms_cmds;
87
88 static void
89 init_hms_cmds (void)
90 {
91 hms_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_FILL_USES_ADDR | MO_GETMEM_NEEDS_RANGE;
92 hms_cmds.init = hms_inits; /* Init strings */
93 hms_cmds.cont = "g\r"; /* continue command */
94 hms_cmds.step = "s\r"; /* single step */
95 hms_cmds.stop = "\003"; /* ^C interrupts the program */
96 hms_cmds.set_break = "b %x\r"; /* set a breakpoint */
97 hms_cmds.clr_break = "b - %x\r"; /* clear a breakpoint */
98 hms_cmds.clr_all_break = "b -\r"; /* clear all breakpoints */
99 hms_cmds.fill = "f %x %x %x\r"; /* fill (start end val) */
100 hms_cmds.setmem.cmdb = "m.b %x=%x\r"; /* setmem.cmdb (addr, value) */
101 hms_cmds.setmem.cmdw = "m.w %x=%x\r"; /* setmem.cmdw (addr, value) */
102 hms_cmds.setmem.cmdl = NULL; /* setmem.cmdl (addr, value) */
103 hms_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
104 hms_cmds.setmem.resp_delim = NULL; /* setreg.resp_delim */
105 hms_cmds.setmem.term = NULL; /* setreg.term */
106 hms_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */
107 hms_cmds.getmem.cmdb = "m.b %x %x\r"; /* getmem.cmdb (addr, addr) */
108 hms_cmds.getmem.cmdw = "m.w %x %x\r"; /* getmem.cmdw (addr, addr) */
109 hms_cmds.getmem.cmdl = NULL; /* getmem.cmdl (addr, addr) */
110 hms_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, addr) */
111 hms_cmds.getmem.resp_delim = ": "; /* getmem.resp_delim */
112 hms_cmds.getmem.term = ">"; /* getmem.term */
113 hms_cmds.getmem.term_cmd = "\003"; /* getmem.term_cmd */
114 hms_cmds.setreg.cmd = "r %s=%x\r"; /* setreg.cmd (name, value) */
115 hms_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
116 hms_cmds.setreg.term = NULL; /* setreg.term */
117 hms_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */
118 hms_cmds.getreg.cmd = "r %s\r"; /* getreg.cmd (name) */
119 hms_cmds.getreg.resp_delim = " ("; /* getreg.resp_delim */
120 hms_cmds.getreg.term = ":"; /* getreg.term */
121 hms_cmds.getreg.term_cmd = "\003"; /* getreg.term_cmd */
122 hms_cmds.dump_registers = "r\r"; /* dump_registers */
123 hms_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\)"; /* register_pattern */
124 hms_cmds.supply_register = hms_supply_register;
125 hms_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */
126 hms_cmds.load = "tl\r"; /* download command */
127 hms_cmds.loadresp = NULL; /* load response */
128 hms_cmds.prompt = ">"; /* monitor command prompt */
129 hms_cmds.line_term = "\r"; /* end-of-command delimitor */
130 hms_cmds.cmd_end = NULL; /* optional command terminator */
131 hms_cmds.target = &hms_ops; /* target operations */
132 hms_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
133 hms_cmds.regnames = hms_regnames; /* registers names */
134 hms_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
135 } /* init_hms-cmds */
136
137 static void
138 hms_open (char *args, int from_tty)
139 {
140 monitor_open (args, &hms_cmds, from_tty);
141 }
142
143 int write_dos_tick_delay;
144
145 extern initialize_file_ftype _initialize_remote_hms; /* -Wmissing-prototypes */
146
147 void
148 _initialize_remote_hms (void)
149 {
150 init_hms_cmds ();
151 init_monitor_ops (&hms_ops);
152
153 hms_ops.to_shortname = "hms";
154 hms_ops.to_longname = "Renesas Microsystems H8/300 debug monitor";
155 hms_ops.to_doc = "Debug via the HMS monitor.\n\
156 Specify the serial device it is connected to (e.g. /dev/ttya).";
157 hms_ops.to_open = hms_open;
158 /* By trial and error I've found that this delay doesn't break things */
159 write_dos_tick_delay = 1;
160 add_target (&hms_ops);
161 }