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b811d2c2 | 1 | # Copyright 2000-2020 Free Software Foundation, Inc. |
6f8eac0e DJ |
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 | |
e22f8b7c | 5 | # the Free Software Foundation; either version 3 of the License, or |
6f8eac0e | 6 | # (at your option) any later version. |
e22f8b7c | 7 | # |
6f8eac0e DJ |
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. | |
e22f8b7c | 12 | # |
6f8eac0e | 13 | # You should have received a copy of the GNU General Public License |
e22f8b7c | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
6f8eac0e DJ |
15 | |
16 | # This file is based on config/gdbserver.exp, which was written by | |
17 | # Michael Snyder (msnyder@redhat.com). | |
18 | ||
19 | # | |
20 | # To be addressed or set in your baseboard config file: | |
21 | # | |
22 | # set_board_info gdb_protocol "remote" | |
23 | # Unles you have a gdbserver that uses a different protocol... | |
e11ac3a3 JK |
24 | # After GDB starts you should check global $gdbserver_protocol instead as |
25 | # the testfile may force a specific different target protocol itself. | |
6f8eac0e DJ |
26 | # |
27 | # set_board_info gdb_server_prog | |
28 | # This will be the path to the gdbserver program you want to test. | |
29 | # Defaults to "gdbserver". | |
30 | # | |
31 | # set_board_info sockethost | |
32 | # The name of the host computer whose socket is being used. | |
33 | # Defaults to "localhost". Note: old gdbserver requires | |
34 | # that you define this, but libremote/gdbserver does not. | |
35 | # | |
36 | # set_board_info gdb,socketport | |
37 | # Port id to use for socket connection. If not set explicitly, | |
38 | # it will start at "2345" and increment for each use. | |
e11ac3a3 JK |
39 | # After GDB starts you should check global $gdbserver_gdbport for the |
40 | # real port used. It is not useful if $gdbserver_reconnect_p was not set. | |
6f8eac0e DJ |
41 | # |
42 | ||
43 | # | |
81dc3ab5 TV |
44 | # gdb_target_cmd_ext |
45 | # Send gdb the "target" command. Returns 0 on success, 1 on failure, 2 on | |
46 | # unsupported. | |
e5a1a79a AH |
47 | # If specified, then ADDITIONAL_TEXT must match the text that comes after |
48 | # the connection message in order for the procedure to succeed. | |
6f8eac0e | 49 | # |
81dc3ab5 | 50 | proc gdb_target_cmd_ext { targetname serialport {additional_text ""} } { |
6f8eac0e DJ |
51 | global gdb_prompt |
52 | ||
ef783a7d | 53 | set serialport_re [string_to_regexp $serialport] |
6f8eac0e DJ |
54 | for {set i 1} {$i <= 3} {incr i} { |
55 | send_gdb "target $targetname $serialport\n" | |
56 | gdb_expect 60 { | |
57 | -re "A program is being debugged already.*ill it.*y or n. $" { | |
58 | send_gdb "y\n" | |
59 | exp_continue | |
60 | } | |
401ea829 JB |
61 | -re "unknown host.*$gdb_prompt" { |
62 | verbose "Couldn't look up $serialport" | |
63 | } | |
2f83a18e | 64 | -re "Couldn't establish connection to remote.*$gdb_prompt $" { |
6f8eac0e DJ |
65 | verbose "Connection failed" |
66 | } | |
1dadb1dd PA |
67 | -re "Non-stop mode requested, but remote does not support non-stop.*$gdb_prompt $" { |
68 | verbose "remote does not support non-stop" | |
69 | return 1 | |
70 | } | |
e5a1a79a | 71 | -re "Remote MIPS debugging.*$additional_text.*$gdb_prompt" { |
6f8eac0e DJ |
72 | verbose "Set target to $targetname" |
73 | return 0 | |
74 | } | |
e5a1a79a | 75 | -re "Remote debugging using .*$serialport_re.*$additional_text.*$gdb_prompt $" { |
6f8eac0e DJ |
76 | verbose "Set target to $targetname" |
77 | return 0 | |
78 | } | |
e5a1a79a | 79 | -re "Remote debugging using stdio.*$additional_text.*$gdb_prompt $" { |
e0f9f062 DE |
80 | verbose "Set target to $targetname" |
81 | return 0 | |
82 | } | |
e5a1a79a | 83 | -re "Remote target $targetname connected to.*$additional_text.*$gdb_prompt $" { |
6f8eac0e DJ |
84 | verbose "Set target to $targetname" |
85 | return 0 | |
86 | } | |
e5a1a79a | 87 | -re "Connected to.*$additional_text.*$gdb_prompt $" { |
6f8eac0e DJ |
88 | verbose "Set target to $targetname" |
89 | return 0 | |
90 | } | |
2f83a18e DJ |
91 | -re "Ending remote.*$gdb_prompt $" { } |
92 | -re "Connection refused.*$gdb_prompt $" { | |
6f8eac0e DJ |
93 | verbose "Connection refused by remote target. Pausing, and trying again." |
94 | sleep 30 | |
95 | continue | |
96 | } | |
2f83a18e | 97 | -re "Timeout reading from remote system.*$gdb_prompt $" { |
6f8eac0e DJ |
98 | verbose "Got timeout error from gdb." |
99 | } | |
b741e217 DJ |
100 | -notransfer -re "Remote debugging using .*\r\n> $" { |
101 | # We got an unexpected prompt while creating the target. | |
102 | # Leave it there for the test to diagnose. | |
103 | return 1 | |
104 | } | |
81dc3ab5 TV |
105 | -re ": Network is unreachable.\r\n.*$gdb_prompt $" { |
106 | return 2 | |
107 | } | |
6f8eac0e DJ |
108 | timeout { |
109 | send_gdb "\ 3" | |
110 | break | |
111 | } | |
112 | } | |
113 | } | |
114 | return 1 | |
115 | } | |
116 | ||
81dc3ab5 TV |
117 | # Like gdb_target_cmd_ext, but returns 0 on success, 1 on failure. |
118 | ||
8a625130 TV |
119 | proc gdb_target_cmd { args } { |
120 | set res [eval gdb_target_cmd_ext $args] | |
81dc3ab5 TV |
121 | return [expr $res == 0 ? 0 : 1] |
122 | } | |
6f8eac0e DJ |
123 | |
124 | global portnum | |
125 | set portnum "2345" | |
126 | ||
127 | # Locate the gdbserver binary. Returns "" if gdbserver could not be found. | |
128 | ||
129 | proc find_gdbserver { } { | |
130 | global GDB | |
6fadd07a DE |
131 | global GDBSERVER |
132 | ||
133 | if [info exists GDBSERVER] { | |
134 | return ${GDBSERVER} | |
135 | } | |
6f8eac0e DJ |
136 | |
137 | if [target_info exists gdb_server_prog] { | |
138 | return [target_info gdb_server_prog] | |
139 | } | |
140 | ||
141 | set gdbserver "${GDB}server" | |
142 | if { [file isdirectory $gdbserver] } { | |
143 | append gdbserver "/gdbserver" | |
144 | } | |
145 | ||
146 | if { [file executable $gdbserver] } { | |
147 | return $gdbserver | |
148 | } | |
149 | ||
150 | return "" | |
151 | } | |
152 | ||
153 | # Return non-zero if we should skip gdbserver-specific tests. | |
154 | ||
155 | proc skip_gdbserver_tests { } { | |
156 | if { [find_gdbserver] == "" } { | |
157 | return 1 | |
158 | } | |
159 | ||
bae62ee2 YQ |
160 | # If GDB is lack of XML support, and targets, like arm, have |
161 | # multiple target descriptions, GDB doesn't know which target | |
162 | # description GDBserver uses, and may fail to parse 'g' packet | |
163 | # after connection. | |
164 | if { [gdb_skip_xml_test] | |
165 | && ([istarget "arm*-*-linux*"] | |
166 | || [istarget "mips*-*-linux*"] | |
167 | || [istarget "powerpc*-*-linux*"] | |
168 | || [istarget "s390*-*-linux*"] | |
169 | || [istarget "x86_64-*-linux*"] | |
170 | || [istarget "i\[34567\]86-*-linux*"]) } { | |
171 | return 1 | |
172 | } | |
173 | ||
6f8eac0e DJ |
174 | return 0 |
175 | } | |
176 | ||
2d717e4f DJ |
177 | # Download the currently loaded program to the target if necessary. |
178 | # Return the target system filename. | |
6496a609 DE |
179 | # NOTE: This was named "gdbserver_download", but that collides with the |
180 | # dejagnu "download" API function when using load_generic_config "gdbserver". | |
6f8eac0e | 181 | |
6496a609 | 182 | proc gdbserver_download_current_prog { } { |
b741e217 DJ |
183 | global gdbserver_host_exec |
184 | global gdbserver_host_mtime | |
185 | global gdbserver_server_exec | |
186 | global last_loaded_file | |
187 | ||
096be756 PA |
188 | if { ![info exists last_loaded_file] } { |
189 | return "" | |
190 | } | |
191 | ||
b741e217 DJ |
192 | set host_exec $last_loaded_file |
193 | ||
194 | # If we already downloaded a file to the target, see if we can reuse it. | |
195 | set reuse 0 | |
196 | if { [info exists gdbserver_server_exec] } { | |
197 | set reuse 1 | |
198 | ||
199 | # If the file has changed, we can not. | |
200 | if { $host_exec != $gdbserver_host_exec } { | |
201 | set reuse 0 | |
202 | } | |
203 | ||
204 | # If the mtime has changed, we can not. | |
205 | if { [file mtime $host_exec] != $gdbserver_host_mtime } { | |
206 | set reuse 0 | |
207 | } | |
208 | } | |
209 | ||
210 | if { $reuse == 0 } { | |
211 | set gdbserver_host_exec $host_exec | |
212 | set gdbserver_host_mtime [file mtime $host_exec] | |
7817ea46 | 213 | set gdbserver_server_exec [gdb_remote_download target $host_exec] |
b741e217 | 214 | } |
6f8eac0e | 215 | |
2d717e4f DJ |
216 | return $gdbserver_server_exec |
217 | } | |
218 | ||
e0f9f062 DE |
219 | # Default routine to compute the argument to "target remote". |
220 | ||
221 | proc gdbserver_default_get_remote_address { host port } { | |
ab19de87 DE |
222 | # Historically HOST included the trailing ":". |
223 | # To avoid breaking any board files out there we leave things alone. | |
e0f9f062 DE |
224 | return "$host$port" |
225 | } | |
226 | ||
ab19de87 DE |
227 | # Default routine to compute the "comm" argument for gdbserver. |
228 | ||
229 | proc gdbserver_default_get_comm_port { port } { | |
c7ab0aef | 230 | return "$port" |
ab19de87 DE |
231 | } |
232 | ||
2d717e4f DJ |
233 | # Start a gdbserver process with initial OPTIONS and trailing ARGUMENTS. |
234 | # The port will be filled in between them automatically. | |
235 | # | |
236 | # Returns the target protocol and socket to connect to. | |
237 | ||
238 | proc gdbserver_start { options arguments } { | |
239 | global portnum | |
c7ab0aef | 240 | global GDB_TEST_SOCKETHOST |
2d717e4f | 241 | |
6f8eac0e DJ |
242 | # Port id -- either specified in baseboard file, or managed here. |
243 | if [target_info exists gdb,socketport] { | |
244 | set portnum [target_info gdb,socketport] | |
245 | } else { | |
246 | # Bump the port number to avoid conflicts with hung ports. | |
247 | incr portnum | |
248 | } | |
249 | ||
250 | # Extract the local and remote host ids from the target board struct. | |
c7ab0aef SDJ |
251 | if { [info exists GDB_TEST_SOCKETHOST] } { |
252 | # The user is not supposed to provide a port number, just a | |
253 | # hostname/address, therefore we add the trailing ":" here. | |
254 | set debughost "${GDB_TEST_SOCKETHOST}:" | |
255 | # Escape open and close square brackets. | |
256 | set debughost_tmp [string map { [ \\[ ] \\] } $debughost] | |
257 | # We need a "gdbserver" version of the debughost, which will | |
258 | # have the possible connection prefix stripped. This is | |
259 | # because gdbserver currently doesn't recognize the prefixes. | |
260 | regsub -all "^\(tcp:|udp:|tcp4:|udp4:|tcp6:|udp6:\)" $debughost_tmp "" debughost_gdbserver | |
261 | } elseif [target_info exists sockethost] { | |
2d717e4f | 262 | set debughost [target_info sockethost] |
c7ab0aef | 263 | set debughost_gdbserver $debughost |
6f8eac0e DJ |
264 | } else { |
265 | set debughost "localhost:" | |
c7ab0aef | 266 | set debughost_gdbserver $debughost |
6f8eac0e DJ |
267 | } |
268 | ||
e0f9f062 DE |
269 | # Some boards use a different value for the port that is passed to |
270 | # gdbserver and the port that is passed to the "target remote" command. | |
271 | # One example is the stdio gdbserver support. | |
272 | if [target_info exists gdb,get_remote_address] { | |
273 | set get_remote_address [target_info gdb,get_remote_address] | |
274 | } else { | |
275 | set get_remote_address gdbserver_default_get_remote_address | |
276 | } | |
ab19de87 DE |
277 | if [target_info exists gdbserver,get_comm_port] { |
278 | set get_comm_port [target_info gdbserver,get_comm_port] | |
279 | } else { | |
280 | set get_comm_port gdbserver_default_get_comm_port | |
281 | } | |
e0f9f062 | 282 | |
6f8eac0e DJ |
283 | # Extract the protocol |
284 | if [target_info exists gdb_protocol] { | |
285 | set protocol [target_info gdb_protocol] | |
286 | } else { | |
287 | set protocol "remote" | |
288 | } | |
289 | ||
290 | set gdbserver [find_gdbserver] | |
291 | ||
047427a8 JK |
292 | # Loop till we find a free port. |
293 | while 1 { | |
047427a8 JK |
294 | # Fire off the debug agent. |
295 | set gdbserver_command "$gdbserver" | |
03f2bd59 JK |
296 | |
297 | # If gdbserver_reconnect will be called $gdbserver_reconnect_p must be | |
298 | # set to true already during gdbserver_start. | |
299 | global gdbserver_reconnect_p | |
dd06d4d6 AH |
300 | global srcdir |
301 | global subdir | |
03f2bd59 JK |
302 | if {![info exists gdbserver_reconnect_p] || !$gdbserver_reconnect_p} { |
303 | # GDB client could accidentally connect to a stale server. | |
304 | append gdbserver_command " --once" | |
305 | } | |
306 | ||
dd06d4d6 AH |
307 | # Enable debug if set. |
308 | if [gdbserver_debug_enabled] { | |
309 | global gdbserverdebug | |
b420b89e AH |
310 | set enabled 0 |
311 | foreach entry [split $gdbserverdebug ,] { | |
312 | switch -- $entry { | |
313 | "debug" { | |
314 | append gdbserver_command " --debug" | |
315 | set enabled 1 | |
316 | } | |
317 | "remote" { | |
318 | append gdbserver_command " --remote-debug" | |
319 | set enabled 1 | |
320 | } | |
321 | } | |
322 | } | |
323 | # Ensure debugfile is only added if something has been enabled | |
324 | if { $enabled } { | |
325 | set debugfile [standard_output_file gdbserver.debug] | |
326 | append gdbserver_command " --debug-file=$debugfile" | |
dd06d4d6 AH |
327 | } |
328 | } | |
329 | ||
047427a8 JK |
330 | if { $options != "" } { |
331 | append gdbserver_command " $options" | |
332 | } | |
c7ab0aef SDJ |
333 | if { $debughost_gdbserver != "" } { |
334 | append gdbserver_command " $debughost_gdbserver" | |
335 | } | |
e0f9f062 | 336 | if { $portnum != "" } { |
c7ab0aef SDJ |
337 | if { $debughost_gdbserver == "" } { |
338 | append gdbserver_command " " | |
339 | } | |
340 | append gdbserver_command "[$get_comm_port $portnum]" | |
e0f9f062 | 341 | } |
047427a8 JK |
342 | if { $arguments != "" } { |
343 | append gdbserver_command " $arguments" | |
344 | } | |
6f8eac0e | 345 | |
408e9b8b AH |
346 | gdbserver_write_cmd_file $gdbserver_command |
347 | ||
6423214f | 348 | global server_spawn_id |
047427a8 JK |
349 | set server_spawn_id [remote_spawn target $gdbserver_command] |
350 | ||
f71c18e7 PA |
351 | # GDBserver doesn't do inferior I/O through GDB. But we can |
352 | # talk to the program using GDBserver's tty instead. | |
353 | global inferior_spawn_id | |
354 | set inferior_spawn_id $server_spawn_id | |
355 | ||
047427a8 JK |
356 | # Wait for the server to open its TCP socket, so that GDB can connect. |
357 | expect { | |
358 | -i $server_spawn_id | |
2bdd10b7 | 359 | -timeout 120 |
047427a8 JK |
360 | -notransfer |
361 | -re "Listening on" { } | |
01abb042 | 362 | -re "Can't (bind address|listen on socket): Address already in use\\.\r\n" { |
047427a8 JK |
363 | verbose -log "Port $portnum is already in use." |
364 | if ![target_info exists gdb,socketport] { | |
365 | # Bump the port number to avoid the conflict. | |
366 | wait -i $expect_out(spawn_id) | |
367 | incr portnum | |
368 | continue | |
369 | } | |
370 | } | |
fb66cde8 | 371 | -re ".*: cannot resolve name: .*\r\n" { |
c7ab0aef SDJ |
372 | error "gdbserver cannot resolve name." |
373 | } | |
09635af7 MR |
374 | timeout { |
375 | error "Timeout waiting for gdbserver response." | |
376 | } | |
047427a8 JK |
377 | } |
378 | break | |
6f8eac0e DJ |
379 | } |
380 | ||
e0f9f062 | 381 | return [list $protocol [$get_remote_address $debughost $portnum]] |
6f8eac0e DJ |
382 | } |
383 | ||
2d717e4f DJ |
384 | # Start a gdbserver process running SERVER_EXEC, and connect GDB |
385 | # to it. CHILD_ARGS are passed to the inferior. | |
386 | # | |
387 | # Returns the target protocol and socket to connect to. | |
388 | ||
389 | proc gdbserver_spawn { child_args } { | |
6496a609 | 390 | set target_exec [gdbserver_download_current_prog] |
2d717e4f DJ |
391 | |
392 | # Fire off the debug agent. This flavour of gdbserver takes as | |
393 | # arguments the port information, the name of the executable file to | |
394 | # be debugged, and any arguments. | |
395 | set arguments "$target_exec" | |
396 | if { $child_args != "" } { | |
397 | append arguments " $child_args" | |
398 | } | |
399 | return [gdbserver_start "" $arguments] | |
400 | } | |
401 | ||
6423214f PA |
402 | # Close the GDBserver connection. |
403 | ||
404 | proc close_gdbserver {} { | |
038d4868 | 405 | global server_spawn_id |
6423214f PA |
406 | |
407 | # We can't just call close, because if gdbserver is local then that means | |
408 | # that it will get a SIGHUP. Doing it this way could also allow us to | |
409 | # get at the inferior's input or output if necessary, and means that we | |
410 | # don't need to redirect output. | |
411 | ||
412 | if {![info exists server_spawn_id]} { | |
413 | return | |
414 | } | |
415 | ||
416 | verbose "Quitting GDBserver" | |
417 | ||
418 | catch "close -i $server_spawn_id" | |
419 | catch "wait -i $server_spawn_id" | |
420 | unset server_spawn_id | |
421 | } | |
422 | ||
f73842fc YQ |
423 | # Hook into GDB exit, and close GDBserver. We must load this |
424 | # explicitly here, and rename the procedures we want to override. | |
425 | load_lib mi-support.exp | |
6423214f | 426 | |
9c211fd8 | 427 | if { [info procs gdbserver_orig_gdb_exit] == "" } { |
6423214f | 428 | rename gdb_exit gdbserver_orig_gdb_exit |
f73842fc | 429 | rename mi_gdb_exit gdbserver_orig_mi_gdb_exit |
6423214f | 430 | } |
f73842fc YQ |
431 | |
432 | proc gdbserver_gdb_exit { is_mi } { | |
038d4868 | 433 | global gdb_spawn_id server_spawn_id |
6423214f | 434 | global gdb_prompt |
1ca99c42 PA |
435 | global gdbserver_reconnect_p |
436 | ||
437 | # Leave GDBserver running if we're exiting GDB in order to | |
438 | # reconnect to the same instance of GDBserver again. | |
439 | if {[info exists gdbserver_reconnect_p] && $gdbserver_reconnect_p} { | |
f73842fc YQ |
440 | if { $is_mi } { |
441 | gdbserver_orig_mi_gdb_exit | |
442 | } else { | |
443 | gdbserver_orig_gdb_exit | |
444 | } | |
1ca99c42 PA |
445 | return |
446 | } | |
6423214f PA |
447 | |
448 | if {[info exists gdb_spawn_id] && [info exists server_spawn_id]} { | |
2efe15c4 YQ |
449 | # GDB may be terminated in an expected way or an unexpected way, |
450 | # but DejaGNU doesn't know that, so gdb_spawn_id isn't unset. | |
451 | # Catch the exceptions. | |
452 | catch { | |
f73842fc YQ |
453 | if { $is_mi } { |
454 | set monitor_exit "-interpreter-exec console \"monitor exit\"" | |
455 | } else { | |
456 | set monitor_exit "monitor exit" | |
457 | } | |
458 | send_gdb "$monitor_exit\n"; | |
2efe15c4 YQ |
459 | # We use expect rather than gdb_expect because |
460 | # we want to suppress printing exception messages, otherwise, | |
461 | # remote_expect, invoked by gdb_expect, prints the exceptions. | |
462 | expect { | |
463 | -i "$gdb_spawn_id" -re "$gdb_prompt $" { | |
464 | exp_continue | |
465 | } | |
466 | -i "$server_spawn_id" eof { | |
467 | wait -i $expect_out(spawn_id) | |
468 | unset server_spawn_id | |
2efe15c4 | 469 | } |
6423214f PA |
470 | } |
471 | } | |
472 | } | |
473 | close_gdbserver | |
474 | ||
f73842fc YQ |
475 | if { $is_mi } { |
476 | gdbserver_orig_mi_gdb_exit | |
477 | } else { | |
478 | gdbserver_orig_gdb_exit | |
479 | } | |
480 | } | |
481 | ||
482 | proc gdb_exit {} { | |
483 | gdbserver_gdb_exit 0 | |
484 | } | |
485 | ||
486 | proc mi_gdb_exit {} { | |
487 | gdbserver_gdb_exit 1 | |
6423214f PA |
488 | } |
489 | ||
6f8eac0e | 490 | # Start a gdbserver process running HOST_EXEC and pass CHILD_ARGS |
09635af7 MR |
491 | # to it. Return 0 on success, or non-zero on failure: 2 if gdbserver |
492 | # failed to start or 1 if we couldn't connect to it. | |
6f8eac0e | 493 | |
b741e217 | 494 | proc gdbserver_run { child_args } { |
b0f4b84b DJ |
495 | global gdbserver_protocol |
496 | global gdbserver_gdbport | |
497 | ||
2226f861 DJ |
498 | # Kill anything running before we try to start gdbserver, in case |
499 | # we are sharing a serial connection. | |
500 | global gdb_prompt | |
ce3ebcaa | 501 | send_gdb "kill\n" optional |
2226f861 DJ |
502 | gdb_expect 120 { |
503 | -re "Kill the program being debugged. .y or n. $" { | |
504 | send_gdb "y\n" | |
505 | verbose "\t\tKilling previous program being debugged" | |
506 | exp_continue | |
507 | } | |
508 | -re "$gdb_prompt $" { | |
509 | # OK. | |
510 | } | |
511 | } | |
512 | ||
09635af7 MR |
513 | if { [catch { gdbserver_spawn $child_args } res] == 1 } { |
514 | perror $res | |
515 | return 2 | |
516 | } | |
b0f4b84b DJ |
517 | set gdbserver_protocol [lindex $res 0] |
518 | set gdbserver_gdbport [lindex $res 1] | |
519 | ||
520 | return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] | |
521 | } | |
522 | ||
523 | # Reconnect to the previous gdbserver session. | |
524 | ||
525 | proc gdbserver_reconnect { } { | |
526 | global gdbserver_protocol | |
527 | global gdbserver_gdbport | |
6f8eac0e | 528 | |
4ec70201 | 529 | global gdbserver_reconnect_p |
03f2bd59 JK |
530 | if {![info exists gdbserver_reconnect_p] || !$gdbserver_reconnect_p} { |
531 | error "gdbserver_reconnect_p is not set before gdbserver_reconnect" | |
532 | return 0 | |
533 | } | |
534 | ||
b0f4b84b | 535 | return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] |
6f8eac0e | 536 | } |
2d717e4f | 537 | |
8cfe207c YQ |
538 | # Start gdbserver in extended mode with OPTIONS and connect to it. Note |
539 | # this frobs $gdbserver_protocol, so should be used only from a board | |
540 | # that usually connects in target remote mode. | |
541 | proc gdbserver_start_extended { {options ""} } { | |
e11ac3a3 JK |
542 | global gdbserver_protocol |
543 | global gdbserver_gdbport | |
544 | global use_gdb_stub | |
545 | ||
8cfe207c YQ |
546 | set gdbserver_options "--multi" |
547 | ||
548 | if { $options != "" } { | |
549 | append gdbserver_options " $options" | |
550 | } | |
551 | ||
552 | if { [catch { gdbserver_start $gdbserver_options "" } res] == 1 } { | |
09635af7 MR |
553 | perror $res |
554 | return 2 | |
555 | } | |
a1999d40 PA |
556 | set gdbserver_protocol [lindex $res 0] |
557 | if { [string first "extended-" $gdbserver_protocol] != 0} { | |
558 | set gdbserver_protocol "extended-$gdbserver_protocol" | |
559 | } | |
2d717e4f DJ |
560 | set gdbserver_gdbport [lindex $res 1] |
561 | ||
e11ac3a3 JK |
562 | # Even if the board file is testing with target remote, our caller |
563 | # wants to test against gdbserver in extended-remote mode. Make sure to | |
564 | # disable stub-like techniques. | |
565 | set use_gdb_stub 0 | |
566 | ||
2d717e4f DJ |
567 | return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] |
568 | } | |
048fe15a PA |
569 | |
570 | # Start and connect to a gdbserver in extended/multi mode. Unlike | |
571 | # gdbserver_start_extended, this does not frob $gdbserver_protocol. | |
572 | ||
573 | proc gdbserver_start_multi { } { | |
574 | global gdbserver_protocol | |
575 | global gdbserver_gdbport | |
576 | ||
09635af7 MR |
577 | if { [catch { gdbserver_start "--multi" "" } res] == 1 } { |
578 | perror $res | |
579 | return 2 | |
580 | } | |
048fe15a PA |
581 | set gdbserver_protocol [lindex $res 0] |
582 | set gdbserver_gdbport [lindex $res 1] | |
583 | ||
584 | return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] | |
585 | } | |
586 | ||
587 | # Start a gdbserver process in multi/extended mode, and have GDB | |
588 | # connect to it (MI version). Return 0 on success, or non-zero on | |
589 | # failure. | |
590 | ||
591 | proc mi_gdbserver_start_multi { } { | |
592 | global gdbserver_protocol | |
593 | global gdbserver_gdbport | |
594 | ||
09635af7 MR |
595 | if { [catch { gdbserver_start "--multi" "" } res] == 1 } { |
596 | perror $res | |
597 | return 2 | |
598 | } | |
048fe15a PA |
599 | set gdbserver_protocol [lindex $res 0] |
600 | set gdbserver_gdbport [lindex $res 1] | |
601 | ||
602 | return [mi_gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] | |
603 | } | |
dd06d4d6 AH |
604 | |
605 | # Check if debugging is enabled for gdbserver. | |
606 | ||
607 | proc gdbserver_debug_enabled { } { | |
608 | global gdbserverdebug | |
609 | ||
610 | # If not already read, get the debug setting from environment or board setting. | |
611 | if ![info exists gdbserverdebug] { | |
612 | global env | |
613 | if [info exists env(GDBSERVER_DEBUG)] { | |
614 | set gdbserverdebug $env(GDBSERVER_DEBUG) | |
615 | } elseif [target_info exists gdbserver,debug] { | |
616 | set gdbserverdebug [target_info gdbserver,debug] | |
617 | } else { | |
618 | return 0 | |
619 | } | |
620 | } | |
621 | ||
b420b89e AH |
622 | # Expand the all option |
623 | if { $gdbserverdebug == "all" } { | |
624 | set gdbserverdebug "debug,remote,replay" | |
625 | } | |
626 | ||
627 | # Ensure it is not empty. | |
628 | return [expr { $gdbserverdebug != "" }] | |
dd06d4d6 | 629 | } |
408e9b8b AH |
630 | |
631 | # Write the command line used to invocate gdbserver to the cmd file. | |
632 | ||
633 | proc gdbserver_write_cmd_file { cmdline } { | |
634 | set logfile [standard_output_file_with_gdb_instance gdbserver.cmd] | |
635 | set cmd_file [open $logfile w] | |
636 | puts $cmd_file $cmdline | |
637 | catch "close $cmd_file" | |
638 | } | |
b420b89e AH |
639 | |
640 | # Override gdb_debug_init so that we can set replay logging in GDB if required. | |
641 | # Backup the original function so we can call it afterwards | |
642 | ||
643 | rename gdb_debug_init _gdb_debug_init | |
644 | ||
645 | proc gdb_debug_init { } { | |
646 | global gdbserverdebug | |
647 | global gdb_prompt | |
648 | ||
649 | if [gdbserver_debug_enabled] { | |
650 | foreach entry [split $gdbserverdebug ,] { | |
651 | if { $entry == "replay" } { | |
652 | set replayfile [standard_output_file_with_gdb_instance gdbserver.replay] | |
653 | send_gdb "set remotelogfile $replayfile\n" optional | |
654 | gdb_expect 10 { | |
655 | -re "$gdb_prompt $" {} | |
656 | } | |
657 | } | |
658 | } | |
659 | } | |
660 | ||
661 | # Now call the standard debug init function | |
662 | _gdb_debug_init | |
663 | } |