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c906108c SS |
1 | # Copyright (C) 1996, 1997 Free Software Foundation, Inc. |
2 | ||
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 2 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program; if not, write to the Free Software | |
15 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
16 | ||
17 | # Please email any bugs, comments, and/or additions to this file to: | |
18 | # DejaGnu@cygnus.com | |
19 | ||
20 | # This file was written by Michael Snyder <msnyder@cygnus.com>. | |
21 | ||
22 | # GDB support routines for a board using the sparclet remote debugging | |
23 | # protocol. | |
24 | ||
25 | load_lib remote.exp | |
26 | load_lib gdb.exp | |
27 | ||
28 | # | |
29 | # Sparclet remote run command. | |
30 | # | |
31 | ||
32 | proc gdb_start { } { | |
33 | global gdb_prompt | |
34 | ||
35 | if ![file exists loader] { | |
36 | global libdir | |
37 | set loader loader; | |
38 | ||
39 | if [target_info exists gdb_stub_offset] { | |
40 | set result [target_compile "${libdir}/stub-loader.c" $loader executable "libs=-Wl,-Ttext,[target_info gdb_stub_offset]"]; | |
41 | } else { | |
42 | set result [target_compile "${libdir}/stub-loader.c" $loader executable "ldscript=[target_info gdb_stub_ldscript]"]; | |
43 | } | |
44 | } | |
45 | ||
46 | verbose -log "$gdb_prompt is gdb prompt" | |
47 | ||
48 | set result 0; | |
49 | for { set y 0; } { $y < 4 } { incr y } { | |
50 | if { [default_gdb_start] != 0 } { | |
51 | return -1; | |
52 | } | |
53 | ||
54 | if [target_info exists baud] { | |
55 | send_gdb "set remotebaud [target_info baud]\n" | |
56 | gdb_expect { | |
57 | -re "$gdb_prompt" { } | |
58 | default { | |
59 | perror "Error setting baud rate." | |
60 | return -1; | |
61 | } | |
62 | } | |
63 | } | |
64 | ||
65 | for {set x 1;} { $x < 4 } {incr x} { | |
66 | set result [gdb_sparclet_startup $result]; | |
67 | if { $result > 0 } { | |
68 | return 1; | |
69 | } | |
70 | # mmmmm, magic numbers. | |
71 | if { $result == -42 || $result == -43 } { | |
72 | break; | |
73 | } else { | |
74 | reboot_target; | |
75 | } | |
76 | } | |
77 | if { $x == 4 } { | |
78 | return -1; | |
79 | } | |
80 | gdb_exit; | |
81 | sleep 5; | |
82 | } | |
83 | return -1; | |
84 | } | |
85 | ||
86 | proc gdb_sparclet_startup { arg } { | |
87 | global gdb_prompt | |
88 | global GDB | |
89 | global verbose | |
90 | ||
91 | set is_running_stub 0; | |
92 | ||
93 | if [target_info exists serial] { | |
94 | set serial [target_info serial]; | |
95 | } else { | |
96 | set serial [target_info netport]; | |
97 | } | |
98 | set protocol [target_info gdb_protocol]; | |
99 | set check_stub 1; | |
100 | if { $arg != -42 } { | |
101 | send_gdb "target $protocol $serial\n"; | |
102 | # 10 seconds may be a bit short. | |
103 | gdb_expect 10 { | |
104 | -re "already.*y or n." { | |
105 | gdb_send "y\n"; | |
106 | exp_continue; | |
107 | } | |
108 | -re "Remote target.*connected to.*$gdb_prompt" { set check_stub 0; } | |
109 | -re "$gdb_prompt" { } | |
110 | timeout { } | |
111 | } | |
112 | if { $check_stub } { | |
113 | verbose "timed out, checking if stub is already running" | |
114 | send_gdb "\003"; | |
115 | sleep 1; | |
116 | send_gdb "\003"; | |
117 | gdb_expect 10 { | |
118 | -re "$gdb_prompt" { } | |
119 | default { | |
120 | remote_close host; | |
121 | return -42; | |
122 | } | |
123 | } | |
124 | } | |
125 | } | |
126 | if [target_info exists gdb_serial] { | |
127 | set gdb_serial [target_info gdb_serial]; | |
128 | } else { | |
129 | set gdb_serial $serial; | |
130 | } | |
131 | if { $check_stub } { | |
132 | send_gdb "target remote $gdb_serial\n"; | |
133 | gdb_expect 15 { | |
134 | -re "Remote debugging.*$gdb_prompt" { | |
135 | verbose "stub is already running" | |
136 | set is_running_stub 1; | |
137 | } | |
138 | default { | |
139 | warning "board isn't responding"; | |
140 | remote_close host; | |
141 | remote_reboot target; | |
142 | return -43; | |
143 | } | |
144 | } | |
145 | } | |
146 | ||
147 | if { $is_running_stub == 0 } { | |
148 | global srcdir | |
149 | ||
150 | if [is_remote host] { | |
151 | set loader [remote_download host "loader"]; | |
152 | } else { | |
153 | set loader "loader"; | |
154 | } | |
155 | send_gdb "file $loader\n"; | |
156 | gdb_expect { | |
157 | -re "A program is being debug.*Kill it.*y or n. $" { | |
158 | send_gdb "y\n" | |
159 | exp_continue | |
160 | } | |
161 | -re "Load new symbol table.*y or n. $" { | |
162 | send_gdb "y\n" | |
163 | exp_continue | |
164 | } | |
165 | -re "Reading symbols from.*done..*$gdb_prompt $" {} | |
166 | -re "$gdb_prompt $" { perror "GDB couldn't find loader" } | |
167 | timeout { | |
168 | perror "(timeout) read symbol file" ; | |
169 | return -1 | |
170 | } | |
171 | } | |
172 | ||
173 | send_gdb "target $protocol $serial\n"; | |
174 | gdb_expect { | |
175 | -re "Remote target.*connected to.*$gdb_prompt" { } | |
176 | default { | |
177 | perror "Error reconnecting to board."; | |
178 | return -1; | |
179 | } | |
180 | } | |
181 | ||
182 | send_gdb "load $loader [target_info gdb_stub_offset]\n" | |
183 | verbose "Loading $loader into $GDB" 2 | |
184 | set no_run_command 0; | |
185 | gdb_expect 1200 { | |
186 | -re "Loading.*$gdb_prompt $" { | |
187 | verbose "Loaded $loader into $GDB" 1 | |
188 | } | |
189 | -re "Transfer rate:.*Switching to remote protocol.*Remote debugging" { | |
190 | set no_run_command 1; | |
191 | } | |
192 | -re "$gdb_prompt $" { | |
193 | if $verbose>1 then { | |
194 | perror "GDB couldn't load." | |
195 | } | |
196 | } | |
197 | timeout { | |
198 | if $verbose>1 then { | |
199 | perror "Timed out trying to load $arg." | |
200 | } | |
201 | } | |
202 | } | |
203 | ||
204 | if !$no_run_command { | |
205 | send_gdb "run\n"; | |
206 | gdb_expect 60 { | |
207 | -re "A program is being debug.*Kill it.*y or n. $" { | |
208 | send_gdb "y\n" | |
209 | exp_continue | |
210 | } | |
211 | -re "The program being debugged .*y or n. $" { | |
212 | send_gdb "y\n" | |
213 | exp_continue | |
214 | } | |
215 | -re "Starting program:.*loader.*$" { | |
216 | verbose "Starting loader succeeded" | |
217 | } | |
218 | timeout { | |
219 | perror "(timeout) starting the loader" ; | |
220 | return -1 | |
221 | } | |
222 | default { | |
223 | perror "error starting the loader"; | |
224 | } | |
225 | } | |
226 | } | |
227 | sleep 2; | |
228 | send_gdb "\ 3" | |
229 | sleep 1; | |
230 | send_gdb "\ 3" | |
231 | verbose "Sent ^C^C" | |
232 | gdb_expect 10 { | |
233 | -re "Give up .and stop debugging it.*$" { | |
234 | send_gdb "y\n" | |
235 | exp_continue | |
236 | } | |
237 | -re "$gdb_prompt $" { | |
238 | verbose "Running loader succeeded" | |
239 | } | |
240 | timeout { | |
241 | warning "(timeout) interrupting the loader" ; | |
242 | remote_close host; | |
243 | } | |
244 | default { | |
245 | warning "error interrupting the loader"; | |
246 | } | |
247 | } | |
248 | ||
249 | gdb_exit; | |
250 | return [gdb_start]; | |
251 | } | |
252 | return 1; | |
253 | } | |
254 | ||
255 | proc gdb_run_cmd { args } { | |
256 | global gdb_prompt | |
257 | ||
258 | gdb_breakpoint exit; | |
259 | send_gdb "set \$fp=0\n"; | |
260 | gdb_expect { | |
261 | -re "$gdb_prompt" { } | |
262 | } | |
263 | # This is needed for the SparcLite. Whee. | |
264 | if [target_info exists gdb,start_symbol] { | |
265 | set start_comm "jump *[target_info gdb,start_symbol]\n"; | |
266 | } else { | |
267 | set start_comm "jump *start\n"; | |
268 | } | |
269 | send_gdb "break copyloop\n"; | |
270 | gdb_expect 10 { | |
271 | -re "Breakpoint.*$gdb_prompt $" { | |
272 | set start_comm "continue\n"; | |
273 | } | |
274 | -re "$gdb_prompt $" { } | |
275 | timeout { warning "break copyloop failed badly"; } | |
276 | } | |
277 | send_gdb $start_comm; | |
278 | gdb_expect 10 { | |
279 | -re "y or n. $" { | |
280 | remote_send host "y\n" | |
281 | exp_continue; | |
282 | } | |
283 | -re "Breakpoint.*in copyloop.*$gdb_prompt $" { | |
284 | remote_send host "jump relocd\n"; | |
285 | exp_continue; | |
286 | } | |
287 | -re "Continuing at.*\[\r\n\]" { } | |
288 | default { | |
289 | return -1; | |
290 | } | |
291 | } | |
292 | ||
293 | return ""; | |
294 | } | |
295 | ||
296 | ||
297 | # | |
298 | # gdb_load -- load a file into the GDB. | |
299 | # Returns a 0 if there was an error, | |
300 | # 1 if it load successfully. | |
301 | # | |
302 | proc gdb_load { arg } { | |
303 | global verbose | |
304 | global loadpath | |
305 | global loadfile | |
306 | global gdb_prompt | |
307 | global GDB | |
308 | global expect_out | |
309 | ||
310 | set loadfile [file tail $arg] | |
311 | set loadpath [file dirname $arg] | |
312 | ||
313 | set protocol [target_info gdb_protocol]; | |
314 | ||
315 | if [is_remote host] { | |
316 | set arg [remote_download host $arg]; | |
317 | } | |
318 | send_gdb "file $arg\n" | |
319 | gdb_expect 30 { | |
320 | -re "A program is being debug.*Kill it.*y or n. $" { | |
321 | send_gdb "y\n" | |
322 | exp_continue | |
323 | } | |
324 | -re "Load new symbol table.*y or n. $" { | |
325 | send_gdb "y\n" | |
326 | exp_continue | |
327 | } | |
328 | -re "Reading symbols from.*done..*$gdb_prompt $" {} | |
329 | -re "$gdb_prompt $" { perror "GDB couldn't read file" } | |
330 | timeout { | |
331 | perror "(timeout) read symbol file" ; | |
332 | return -1 | |
333 | } | |
334 | } | |
335 | ||
336 | if [target_info exists gdb_serial] { | |
337 | set gdb_serial [target_info gdb_serial]; | |
338 | } else { | |
339 | if [target_info exists serial] { | |
340 | set gdb_serial [target_info serial]; | |
341 | } else { | |
342 | set gdb_serial [target_info netport]; | |
343 | } | |
344 | } | |
345 | send_gdb "target remote $gdb_serial\n" | |
346 | gdb_expect 30 { | |
347 | -re "Kill it?.*y or n.*" { | |
348 | send_gdb "y\n"; | |
349 | exp_continue | |
350 | } | |
351 | -re "$gdb_prompt $" { | |
352 | verbose "Set remote target to $gdb_serial" 2 | |
353 | } | |
354 | timeout { | |
355 | perror "Couldn't set remote target." | |
356 | return -1 | |
357 | } | |
358 | } | |
359 | if [target_info exists gdb_load_offset] { | |
360 | set offset "[target_info gdb_load_offset]"; | |
361 | } else { | |
362 | set offset ""; | |
363 | } | |
364 | send_gdb "load $arg $offset\n" | |
365 | verbose "Loading $arg into $GDB" 2 | |
366 | gdb_expect 1200 { | |
367 | -re "Loading.*$gdb_prompt $" { | |
368 | verbose "Loaded $arg into $GDB" 1 | |
369 | } | |
370 | -re "$gdb_prompt $" { | |
371 | if $verbose>1 then { | |
372 | perror "GDB couldn't load." | |
373 | } | |
374 | } | |
375 | timeout { | |
376 | if $verbose>1 then { | |
377 | perror "Timed out trying to load $arg." | |
378 | } | |
379 | } | |
380 | } | |
381 | send_gdb "list main\n"; | |
382 | gdb_expect 60 { | |
383 | -re "$gdb_prompt" { } | |
384 | default { | |
385 | perror "command for list main never completed"; | |
386 | return -1; | |
387 | } | |
388 | } | |
389 | ||
390 | return 0 | |
391 | } |