]>
Commit | Line | Data |
---|---|---|
c906108c SS |
1 | /* Remote target glue for the Intel 960 MON960 ROM monitor. |
2 | Copyright 1995, 1996 Free Software Foundation, Inc. | |
3 | ||
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | ||
22 | #include "defs.h" | |
23 | #include "gdbcore.h" | |
24 | #include "target.h" | |
25 | #include "monitor.h" | |
26 | #include "serial.h" | |
27 | #include "srec.h" | |
28 | #include "xmodem.h" | |
29 | #include "symtab.h" | |
c5aa993b | 30 | #include "symfile.h" /* for generic_load */ |
c906108c SS |
31 | |
32 | ||
33 | #define USE_GENERIC_LOAD | |
34 | ||
35 | static struct target_ops mon960_ops; | |
36 | ||
37 | static void mon960_open PARAMS ((char *args, int from_tty)); | |
38 | ||
39 | #ifdef USE_GENERIC_LOAD | |
40 | ||
41 | static void | |
c5aa993b JM |
42 | mon960_load_gen (filename, from_tty) |
43 | char *filename; | |
44 | int from_tty; | |
c906108c SS |
45 | { |
46 | extern int inferior_pid; | |
47 | ||
48 | generic_load (filename, from_tty); | |
49 | /* Finally, make the PC point at the start address */ | |
50 | if (exec_bfd) | |
51 | write_pc (bfd_get_start_address (exec_bfd)); | |
52 | ||
c5aa993b | 53 | inferior_pid = 0; /* No process now */ |
c906108c SS |
54 | } |
55 | ||
56 | #else | |
57 | ||
58 | static void | |
59 | mon960_load (desc, file, hashmark) | |
60 | serial_t desc; | |
61 | char *file; | |
62 | int hashmark; | |
63 | { | |
64 | bfd *abfd; | |
65 | asection *s; | |
66 | char *buffer; | |
67 | int i; | |
68 | ||
69 | buffer = alloca (XMODEM_PACKETSIZE); | |
70 | abfd = bfd_openr (file, 0); | |
71 | if (!abfd) | |
72 | { | |
73 | printf_filtered ("Unable to open file %s\n", file); | |
74 | return; | |
75 | } | |
76 | if (bfd_check_format (abfd, bfd_object) == 0) | |
77 | { | |
78 | printf_filtered ("File is not an object file\n"); | |
79 | return; | |
80 | } | |
81 | for (s = abfd->sections; s; s = s->next) | |
82 | if (s->flags & SEC_LOAD) | |
83 | { | |
84 | bfd_size_type section_size; | |
85 | printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, | |
86 | s->vma + s->_raw_size); | |
87 | gdb_flush (gdb_stdout); | |
88 | monitor_printf (current_monitor->load, s->vma); | |
89 | if (current_monitor->loadresp) | |
90 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
91 | xmodem_init_xfer (desc); | |
92 | section_size = bfd_section_size (abfd, s); | |
93 | for (i = 0; i < section_size; i += XMODEM_DATASIZE) | |
94 | { | |
95 | int numbytes; | |
96 | numbytes = min (XMODEM_DATASIZE, section_size - i); | |
97 | bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i, | |
98 | numbytes); | |
99 | xmodem_send_packet (desc, buffer, numbytes, hashmark); | |
100 | if (hashmark) | |
101 | { | |
102 | putchar_unfiltered ('#'); | |
103 | gdb_flush (gdb_stdout); | |
104 | } | |
105 | } /* Per-packet (or S-record) loop */ | |
106 | xmodem_finish_xfer (desc); | |
107 | monitor_expect_prompt (NULL, 0); | |
108 | putchar_unfiltered ('\n'); | |
109 | } /* Loadable sections */ | |
c5aa993b | 110 | if (hashmark) |
c906108c SS |
111 | putchar_unfiltered ('\n'); |
112 | } | |
113 | ||
114 | #endif /* USE_GENERIC_LOAD */ | |
115 | ||
116 | /* This array of registers need to match the indexes used by GDB. | |
117 | This exists because the various ROM monitors use different strings | |
118 | than does GDB, and don't necessarily support all the registers | |
119 | either. So, typing "info reg sp" becomes a "r30". */ | |
120 | ||
121 | /* these correspond to the offsets from tm-* files from config directories */ | |
c5aa993b | 122 | /* g0-g14, fp, pfp, sp, rip,r3-15, pc, ac, tc, fp0-3 */ |
c906108c SS |
123 | /* NOTE: "ip" is documented as "ir" in the Mon960 UG. */ |
124 | /* NOTE: "ir" can't be accessed... but there's an ip and rip. */ | |
c5aa993b JM |
125 | static char *full_regnames[NUM_REGS] = |
126 | { | |
127 | /* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7", | |
128 | /* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", | |
129 | /* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", | |
130 | /* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp", | |
131 | /* 32 */ "pc", "ac", "tc", "ip", "fp0", "fp1", "fp2", "fp3", | |
132 | }; | |
c906108c SS |
133 | |
134 | static char *mon960_regnames[NUM_REGS]; | |
135 | ||
136 | /* Define the monitor command strings. Since these are passed directly | |
137 | through to a printf style function, we may include formatting | |
138 | strings. We also need a CR or LF on the end. */ | |
139 | ||
140 | /* need to pause the monitor for timing reasons, so slow it down */ | |
141 | ||
142 | #if 0 | |
143 | /* FIXME: this extremely long init string causes MON960 to return two NAKS | |
144 | instead of performing the autobaud recognition, at least when gdb | |
145 | is running on GNU/Linux. The short string below works on Linux, and on | |
146 | SunOS using a tcp serial connection. Must retest on SunOS using a | |
147 | direct serial connection; if that works, get rid of the long string. */ | |
c5aa993b JM |
148 | static char *mon960_inits[] = |
149 | {"\n\r\r\r\r\r\r\r\r\r\r\r\r\r\r\n\r\n\r\n", NULL}; | |
c906108c | 150 | #else |
c5aa993b JM |
151 | static char *mon960_inits[] = |
152 | {"\r", NULL}; | |
c906108c SS |
153 | #endif |
154 | ||
c5aa993b | 155 | static struct monitor_ops mon960_cmds; |
c906108c | 156 | |
c5aa993b | 157 | static void |
c906108c SS |
158 | init_mon960_cmds (void) |
159 | { | |
c5aa993b JM |
160 | mon960_cmds.flags = MO_CLR_BREAK_USES_ADDR |
161 | | MO_NO_ECHO_ON_OPEN | MO_SEND_BREAK_ON_STOP | MO_GETMEM_READ_SINGLE; /* flags */ | |
162 | mon960_cmds.init = mon960_inits; /* Init strings */ | |
163 | mon960_cmds.cont = "go\n\r"; /* continue command */ | |
164 | mon960_cmds.step = "st\n\r"; /* single step */ | |
165 | mon960_cmds.stop = NULL; /* break interrupts the program */ | |
166 | mon960_cmds.set_break = NULL; /* set a breakpoint */ | |
167 | mon960_cmds.clr_break = /* can't use "br" because only 2 hw bps are supported */ | |
168 | mon960_cmds.clr_all_break = NULL; /* clear a breakpoint - "de" is for hw bps */ | |
c906108c | 169 | NULL, /* clear all breakpoints */ |
c5aa993b | 170 | mon960_cmds.fill = NULL; /* fill (start end val) */ |
c906108c SS |
171 | /* can't use "fi" because it takes words, not bytes */ |
172 | /* can't use "mb", "md" or "mo" because they require interaction */ | |
c5aa993b JM |
173 | mon960_cmds.setmem.cmdb = NULL; /* setmem.cmdb (addr, value) */ |
174 | mon960_cmds.setmem.cmdw = NULL; /* setmem.cmdw (addr, value) */ | |
175 | mon960_cmds.setmem.cmdl = "md %x %x\n\r"; /* setmem.cmdl (addr, value) */ | |
176 | mon960_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ | |
177 | mon960_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */ | |
178 | mon960_cmds.setmem.term = NULL; /* setmem.term */ | |
179 | mon960_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */ | |
c906108c SS |
180 | /* since the parsing of multiple bytes is difficult due to |
181 | interspersed addresses, we'll only read 1 value at a time, | |
182 | even tho these can handle a count */ | |
c5aa993b JM |
183 | mon960_cmds.getmem.cmdb = "db %x\n\r"; /* getmem.cmdb (addr, #bytes) */ |
184 | mon960_cmds.getmem.cmdw = "ds %x\n\r"; /* getmem.cmdw (addr, #swords) */ | |
185 | mon960_cmds.getmem.cmdl = "di %x\n\r"; /* getmem.cmdl (addr, #words) */ | |
186 | mon960_cmds.getmem.cmdll = "dd %x\n\r"; /* getmem.cmdll (addr, #dwords) */ | |
187 | mon960_cmds.getmem.resp_delim = " : "; /* getmem.resp_delim */ | |
188 | mon960_cmds.getmem.term = NULL; /* getmem.term */ | |
189 | mon960_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */ | |
190 | mon960_cmds.setreg.cmd = "md %s %x\n\r"; /* setreg.cmd (name, value) */ | |
191 | mon960_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */ | |
192 | mon960_cmds.setreg.term = NULL; /* setreg.term */ | |
193 | mon960_cmds.setreg.term_cmd = NULL, /* setreg.term_cmd */ | |
194 | mon960_cmds.getreg.cmd = "di %s\n\r"; /* getreg.cmd (name) */ | |
195 | mon960_cmds.getreg.resp_delim = " : "; /* getreg.resp_delim */ | |
196 | mon960_cmds.getreg.term = NULL; /* getreg.term */ | |
197 | mon960_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */ | |
198 | mon960_cmds.dump_registers = "re\n\r"; /* dump_registers */ | |
199 | mon960_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\)"; /* register_pattern */ | |
200 | mon960_cmds.supply_register = NULL; /* supply_register */ | |
c906108c | 201 | #ifdef USE_GENERIC_LOAD |
c5aa993b JM |
202 | mon960_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */ |
203 | mon960_cmds.load = NULL; /* download command */ | |
204 | mon960_cmds.loadresp = NULL; /* load response */ | |
c906108c | 205 | #else |
c5aa993b JM |
206 | mon960_cmds.load_routine = mon960_load; /* load_routine (defaults to SRECs) */ |
207 | mon960_cmds.load = "do\n\r"; /* download command */ | |
208 | mon960_cmds.loadresp = "Downloading\n\r"; /* load response */ | |
c906108c | 209 | #endif |
c5aa993b JM |
210 | mon960_cmds.prompt = "=>"; /* monitor command prompt */ |
211 | mon960_cmds.line_term = "\n\r"; /* end-of-command delimitor */ | |
212 | mon960_cmds.cmd_end = NULL; /* optional command terminator */ | |
213 | mon960_cmds.target = &mon960_ops; /* target operations */ | |
214 | mon960_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ | |
215 | mon960_cmds.regnames = mon960_regnames; /* registers names */ | |
c906108c SS |
216 | mon960_cmds.magic = MONITOR_OPS_MAGIC; /* magic */ |
217 | }; | |
218 | ||
219 | static void | |
220 | mon960_open (args, from_tty) | |
221 | char *args; | |
222 | int from_tty; | |
223 | { | |
224 | char buf[64]; | |
225 | ||
226 | monitor_open (args, &mon960_cmds, from_tty); | |
227 | ||
228 | /* Attempt to fetch the value of the first floating point register (fp0). | |
229 | If the monitor returns a string containing the word "Bad" we'll assume | |
230 | this processor has no floating point registers, and nullify the | |
231 | regnames entries that refer to FP registers. */ | |
232 | ||
c5aa993b JM |
233 | monitor_printf (mon960_cmds.getreg.cmd, full_regnames[FP0_REGNUM]); /* di fp0 */ |
234 | if (monitor_expect_prompt (buf, sizeof (buf)) != -1) | |
235 | if (strstr (buf, "Bad") != NULL) | |
c906108c SS |
236 | { |
237 | int i; | |
238 | ||
239 | for (i = FP0_REGNUM; i < FP0_REGNUM + 4; i++) | |
c5aa993b | 240 | mon960_regnames[i] = NULL; |
c906108c SS |
241 | } |
242 | } | |
243 | ||
244 | void | |
245 | _initialize_mon960 () | |
246 | { | |
c5aa993b | 247 | memcpy (mon960_regnames, full_regnames, sizeof (full_regnames)); |
c906108c SS |
248 | |
249 | init_mon960_cmds (); | |
250 | ||
251 | init_monitor_ops (&mon960_ops); | |
252 | ||
c5aa993b | 253 | mon960_ops.to_shortname = "mon960"; /* for the target command */ |
c906108c SS |
254 | mon960_ops.to_longname = "Intel 960 MON960 monitor"; |
255 | #ifdef USE_GENERIC_LOAD | |
c5aa993b | 256 | mon960_ops.to_load = mon960_load_gen; /* FIXME - should go back and try "do" */ |
c906108c SS |
257 | #endif |
258 | /* use SW breaks; target only supports 2 HW breakpoints */ | |
c5aa993b JM |
259 | mon960_ops.to_insert_breakpoint = memory_insert_breakpoint; |
260 | mon960_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
c906108c | 261 | |
c5aa993b | 262 | mon960_ops.to_doc = |
c906108c SS |
263 | "Use an Intel 960 board running the MON960 debug monitor.\n\ |
264 | Specify the serial device it is connected to (e.g. /dev/ttya)."; | |
265 | ||
266 | mon960_ops.to_open = mon960_open; | |
267 | add_target (&mon960_ops); | |
268 | } |