1 /* Remote debugging interface for Renesas HMS Monitor Version 1.0
2 Copyright 1995, 1996, 1998, 1999, 2000, 2001
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., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, 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 static void hms_open (char *args, int from_tty);
32 static void
hms_supply_register(char * regname,int regnamelen,char * val,int vallen)33 hms_supply_register (char *regname, int regnamelen, char *val, int vallen)
34 {
35 int regno;
36
37 if (regnamelen != 2)
38 return;
39 if (regname[0] != 'P')
40 return;
41 /* We scan off all the registers in one go */
42
43 val = monitor_supply_register (PC_REGNUM, val);
44 /* Skip the ccr string */
45 while (*val != '=' && *val)
46 val++;
47
48 val = monitor_supply_register (CCR_REGNUM, val + 1);
49
50 /* Skip up to rest of regs */
51 while (*val != '=' && *val)
52 val++;
53
54 for (regno = 0; regno < 7; regno++)
55 {
56 val = monitor_supply_register (regno, val + 1);
57 }
58 }
59
60 /*
61 * This array of registers needs to match the indexes used by GDB. The
62 * whole reason this exists is because the various ROM monitors use
63 * different names than GDB does, and don't support all the
64 * registers either. So, typing "info reg sp" becomes a "r30".
65 */
66
67 static char *hms_regnames[] =
68 {
69 "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "CCR", "PC", "", "", "", ""
70 };
71
72 /*
73 * Define the monitor command strings. Since these are passed directly
74 * through to a printf style function, we need can include formatting
75 * strings. We also need a CR or LF on the end.
76 */
77
78 static struct target_ops hms_ops;
79
80 static char *hms_inits[] =
81 {"\003", /* Resets the prompt, and clears repeated cmds */
82 NULL};
83
84 static struct monitor_ops hms_cmds;
85
86 static void
init_hms_cmds(void)87 init_hms_cmds (void)
88 {
89 hms_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_FILL_USES_ADDR | MO_GETMEM_NEEDS_RANGE;
90 hms_cmds.init = hms_inits; /* Init strings */
91 hms_cmds.cont = "g\r"; /* continue command */
92 hms_cmds.step = "s\r"; /* single step */
93 hms_cmds.stop = "\003"; /* ^C interrupts the program */
94 hms_cmds.set_break = "b %x\r"; /* set a breakpoint */
95 hms_cmds.clr_break = "b - %x\r"; /* clear a breakpoint */
96 hms_cmds.clr_all_break = "b -\r"; /* clear all breakpoints */
97 hms_cmds.fill = "f %x %x %x\r"; /* fill (start end val) */
98 hms_cmds.setmem.cmdb = "m.b %x=%x\r"; /* setmem.cmdb (addr, value) */
99 hms_cmds.setmem.cmdw = "m.w %x=%x\r"; /* setmem.cmdw (addr, value) */
100 hms_cmds.setmem.cmdl = NULL; /* setmem.cmdl (addr, value) */
101 hms_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
102 hms_cmds.setmem.resp_delim = NULL; /* setreg.resp_delim */
103 hms_cmds.setmem.term = NULL; /* setreg.term */
104 hms_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */
105 hms_cmds.getmem.cmdb = "m.b %x %x\r"; /* getmem.cmdb (addr, addr) */
106 hms_cmds.getmem.cmdw = "m.w %x %x\r"; /* getmem.cmdw (addr, addr) */
107 hms_cmds.getmem.cmdl = NULL; /* getmem.cmdl (addr, addr) */
108 hms_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, addr) */
109 hms_cmds.getmem.resp_delim = ": "; /* getmem.resp_delim */
110 hms_cmds.getmem.term = ">"; /* getmem.term */
111 hms_cmds.getmem.term_cmd = "\003"; /* getmem.term_cmd */
112 hms_cmds.setreg.cmd = "r %s=%x\r"; /* setreg.cmd (name, value) */
113 hms_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
114 hms_cmds.setreg.term = NULL; /* setreg.term */
115 hms_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */
116 hms_cmds.getreg.cmd = "r %s\r"; /* getreg.cmd (name) */
117 hms_cmds.getreg.resp_delim = " ("; /* getreg.resp_delim */
118 hms_cmds.getreg.term = ":"; /* getreg.term */
119 hms_cmds.getreg.term_cmd = "\003"; /* getreg.term_cmd */
120 hms_cmds.dump_registers = "r\r"; /* dump_registers */
121 hms_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\)"; /* register_pattern */
122 hms_cmds.supply_register = hms_supply_register;
123 hms_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */
124 hms_cmds.load = "tl\r"; /* download command */
125 hms_cmds.loadresp = NULL; /* load response */
126 hms_cmds.prompt = ">"; /* monitor command prompt */
127 hms_cmds.line_term = "\r"; /* end-of-command delimitor */
128 hms_cmds.cmd_end = NULL; /* optional command terminator */
129 hms_cmds.target = &hms_ops; /* target operations */
130 hms_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
131 hms_cmds.regnames = hms_regnames; /* registers names */
132 hms_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
133 } /* init_hms-cmds */
134
135 static void
hms_open(char * args,int from_tty)136 hms_open (char *args, int from_tty)
137 {
138 monitor_open (args, &hms_cmds, from_tty);
139 }
140
141 int write_dos_tick_delay;
142
143 extern initialize_file_ftype _initialize_remote_hms; /* -Wmissing-prototypes */
144
145 void
_initialize_remote_hms(void)146 _initialize_remote_hms (void)
147 {
148 init_hms_cmds ();
149 init_monitor_ops (&hms_ops);
150
151 hms_ops.to_shortname = "hms";
152 hms_ops.to_longname = "Renesas Microsystems H8/300 debug monitor";
153 hms_ops.to_doc = "Debug via the HMS monitor.\n\
154 Specify the serial device it is connected to (e.g. /dev/ttya).";
155 hms_ops.to_open = hms_open;
156 /* By trial and error I've found that this delay doesn't break things */
157 write_dos_tick_delay = 1;
158 add_target (&hms_ops);
159 }
160