Commit | Line | Data |
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3666a048 | 1 | # Copyright 2000-2021 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" | |
5de96253 | 56 | drain_gdbserver_output |
6f8eac0e DJ |
57 | gdb_expect 60 { |
58 | -re "A program is being debugged already.*ill it.*y or n. $" { | |
59 | send_gdb "y\n" | |
60 | exp_continue | |
61 | } | |
401ea829 JB |
62 | -re "unknown host.*$gdb_prompt" { |
63 | verbose "Couldn't look up $serialport" | |
64 | } | |
2f83a18e | 65 | -re "Couldn't establish connection to remote.*$gdb_prompt $" { |
6f8eac0e | 66 | verbose "Connection failed" |
cd211c75 LM |
67 | } |
68 | -re "Cannot assign requested address.*$gdb_prompt $" { | |
69 | verbose "Could not assign requested address" | |
6f8eac0e | 70 | } |
1dadb1dd PA |
71 | -re "Non-stop mode requested, but remote does not support non-stop.*$gdb_prompt $" { |
72 | verbose "remote does not support non-stop" | |
73 | return 1 | |
74 | } | |
e5a1a79a | 75 | -re "Remote MIPS debugging.*$additional_text.*$gdb_prompt" { |
6f8eac0e DJ |
76 | verbose "Set target to $targetname" |
77 | return 0 | |
78 | } | |
e5a1a79a | 79 | -re "Remote debugging using .*$serialport_re.*$additional_text.*$gdb_prompt $" { |
6f8eac0e | 80 | verbose "Set target to $targetname" |
5de96253 | 81 | drain_gdbserver_output |
6f8eac0e DJ |
82 | return 0 |
83 | } | |
e5a1a79a | 84 | -re "Remote debugging using stdio.*$additional_text.*$gdb_prompt $" { |
e0f9f062 DE |
85 | verbose "Set target to $targetname" |
86 | return 0 | |
87 | } | |
e5a1a79a | 88 | -re "Remote target $targetname connected to.*$additional_text.*$gdb_prompt $" { |
6f8eac0e DJ |
89 | verbose "Set target to $targetname" |
90 | return 0 | |
91 | } | |
e5a1a79a | 92 | -re "Connected to.*$additional_text.*$gdb_prompt $" { |
6f8eac0e DJ |
93 | verbose "Set target to $targetname" |
94 | return 0 | |
95 | } | |
2f83a18e DJ |
96 | -re "Ending remote.*$gdb_prompt $" { } |
97 | -re "Connection refused.*$gdb_prompt $" { | |
6f8eac0e DJ |
98 | verbose "Connection refused by remote target. Pausing, and trying again." |
99 | sleep 30 | |
100 | continue | |
101 | } | |
2f83a18e | 102 | -re "Timeout reading from remote system.*$gdb_prompt $" { |
6f8eac0e DJ |
103 | verbose "Got timeout error from gdb." |
104 | } | |
b741e217 DJ |
105 | -notransfer -re "Remote debugging using .*\r\n> $" { |
106 | # We got an unexpected prompt while creating the target. | |
107 | # Leave it there for the test to diagnose. | |
108 | return 1 | |
109 | } | |
81dc3ab5 TV |
110 | -re ": Network is unreachable.\r\n.*$gdb_prompt $" { |
111 | return 2 | |
112 | } | |
6f8eac0e DJ |
113 | timeout { |
114 | send_gdb "\ 3" | |
115 | break | |
116 | } | |
117 | } | |
118 | } | |
119 | return 1 | |
120 | } | |
121 | ||
81dc3ab5 TV |
122 | # Like gdb_target_cmd_ext, but returns 0 on success, 1 on failure. |
123 | ||
8a625130 TV |
124 | proc gdb_target_cmd { args } { |
125 | set res [eval gdb_target_cmd_ext $args] | |
81dc3ab5 TV |
126 | return [expr $res == 0 ? 0 : 1] |
127 | } | |
6f8eac0e DJ |
128 | |
129 | global portnum | |
130 | set portnum "2345" | |
131 | ||
132 | # Locate the gdbserver binary. Returns "" if gdbserver could not be found. | |
133 | ||
134 | proc find_gdbserver { } { | |
135 | global GDB | |
6fadd07a DE |
136 | global GDBSERVER |
137 | ||
138 | if [info exists GDBSERVER] { | |
139 | return ${GDBSERVER} | |
140 | } | |
6f8eac0e DJ |
141 | |
142 | if [target_info exists gdb_server_prog] { | |
143 | return [target_info gdb_server_prog] | |
144 | } | |
145 | ||
f251f505 TT |
146 | set toplevel [file join [file dirname $GDB] .. gdbserver] |
147 | foreach gdbserver [list "${GDB}server" $toplevel] { | |
148 | if { [file isdirectory $gdbserver] } { | |
149 | append gdbserver "/gdbserver" | |
150 | } | |
151 | ||
152 | if { [file executable $gdbserver] } { | |
153 | return $gdbserver | |
154 | } | |
6f8eac0e DJ |
155 | } |
156 | ||
157 | return "" | |
158 | } | |
159 | ||
160 | # Return non-zero if we should skip gdbserver-specific tests. | |
161 | ||
162 | proc skip_gdbserver_tests { } { | |
163 | if { [find_gdbserver] == "" } { | |
164 | return 1 | |
165 | } | |
166 | ||
bae62ee2 YQ |
167 | # If GDB is lack of XML support, and targets, like arm, have |
168 | # multiple target descriptions, GDB doesn't know which target | |
169 | # description GDBserver uses, and may fail to parse 'g' packet | |
170 | # after connection. | |
171 | if { [gdb_skip_xml_test] | |
172 | && ([istarget "arm*-*-linux*"] | |
173 | || [istarget "mips*-*-linux*"] | |
174 | || [istarget "powerpc*-*-linux*"] | |
175 | || [istarget "s390*-*-linux*"] | |
176 | || [istarget "x86_64-*-linux*"] | |
177 | || [istarget "i\[34567\]86-*-linux*"]) } { | |
178 | return 1 | |
179 | } | |
180 | ||
6f8eac0e DJ |
181 | return 0 |
182 | } | |
183 | ||
2d717e4f DJ |
184 | # Download the currently loaded program to the target if necessary. |
185 | # Return the target system filename. | |
6496a609 DE |
186 | # NOTE: This was named "gdbserver_download", but that collides with the |
187 | # dejagnu "download" API function when using load_generic_config "gdbserver". | |
6f8eac0e | 188 | |
6496a609 | 189 | proc gdbserver_download_current_prog { } { |
b741e217 DJ |
190 | global gdbserver_host_exec |
191 | global gdbserver_host_mtime | |
192 | global gdbserver_server_exec | |
193 | global last_loaded_file | |
194 | ||
096be756 PA |
195 | if { ![info exists last_loaded_file] } { |
196 | return "" | |
197 | } | |
198 | ||
b741e217 DJ |
199 | set host_exec $last_loaded_file |
200 | ||
201 | # If we already downloaded a file to the target, see if we can reuse it. | |
202 | set reuse 0 | |
203 | if { [info exists gdbserver_server_exec] } { | |
204 | set reuse 1 | |
205 | ||
206 | # If the file has changed, we can not. | |
207 | if { $host_exec != $gdbserver_host_exec } { | |
208 | set reuse 0 | |
209 | } | |
210 | ||
211 | # If the mtime has changed, we can not. | |
212 | if { [file mtime $host_exec] != $gdbserver_host_mtime } { | |
213 | set reuse 0 | |
214 | } | |
215 | } | |
216 | ||
217 | if { $reuse == 0 } { | |
218 | set gdbserver_host_exec $host_exec | |
219 | set gdbserver_host_mtime [file mtime $host_exec] | |
7817ea46 | 220 | set gdbserver_server_exec [gdb_remote_download target $host_exec] |
b741e217 | 221 | } |
6f8eac0e | 222 | |
2d717e4f DJ |
223 | return $gdbserver_server_exec |
224 | } | |
225 | ||
e0f9f062 DE |
226 | # Default routine to compute the argument to "target remote". |
227 | ||
228 | proc gdbserver_default_get_remote_address { host port } { | |
ab19de87 DE |
229 | # Historically HOST included the trailing ":". |
230 | # To avoid breaking any board files out there we leave things alone. | |
e0f9f062 DE |
231 | return "$host$port" |
232 | } | |
233 | ||
ab19de87 DE |
234 | # Default routine to compute the "comm" argument for gdbserver. |
235 | ||
236 | proc gdbserver_default_get_comm_port { port } { | |
c7ab0aef | 237 | return "$port" |
ab19de87 DE |
238 | } |
239 | ||
2d717e4f DJ |
240 | # Start a gdbserver process with initial OPTIONS and trailing ARGUMENTS. |
241 | # The port will be filled in between them automatically. | |
242 | # | |
243 | # Returns the target protocol and socket to connect to. | |
244 | ||
245 | proc gdbserver_start { options arguments } { | |
5de96253 | 246 | #return [list "remote" localhost:1234] |
2d717e4f | 247 | global portnum |
c7ab0aef | 248 | global GDB_TEST_SOCKETHOST |
2d717e4f | 249 | |
6f8eac0e DJ |
250 | # Port id -- either specified in baseboard file, or managed here. |
251 | if [target_info exists gdb,socketport] { | |
252 | set portnum [target_info gdb,socketport] | |
253 | } else { | |
254 | # Bump the port number to avoid conflicts with hung ports. | |
255 | incr portnum | |
256 | } | |
257 | ||
258 | # Extract the local and remote host ids from the target board struct. | |
c7ab0aef SDJ |
259 | if { [info exists GDB_TEST_SOCKETHOST] } { |
260 | # The user is not supposed to provide a port number, just a | |
261 | # hostname/address, therefore we add the trailing ":" here. | |
262 | set debughost "${GDB_TEST_SOCKETHOST}:" | |
263 | # Escape open and close square brackets. | |
264 | set debughost_tmp [string map { [ \\[ ] \\] } $debughost] | |
265 | # We need a "gdbserver" version of the debughost, which will | |
266 | # have the possible connection prefix stripped. This is | |
267 | # because gdbserver currently doesn't recognize the prefixes. | |
268 | regsub -all "^\(tcp:|udp:|tcp4:|udp4:|tcp6:|udp6:\)" $debughost_tmp "" debughost_gdbserver | |
269 | } elseif [target_info exists sockethost] { | |
2d717e4f | 270 | set debughost [target_info sockethost] |
c7ab0aef | 271 | set debughost_gdbserver $debughost |
6f8eac0e DJ |
272 | } else { |
273 | set debughost "localhost:" | |
c7ab0aef | 274 | set debughost_gdbserver $debughost |
6f8eac0e DJ |
275 | } |
276 | ||
e0f9f062 DE |
277 | # Some boards use a different value for the port that is passed to |
278 | # gdbserver and the port that is passed to the "target remote" command. | |
279 | # One example is the stdio gdbserver support. | |
280 | if [target_info exists gdb,get_remote_address] { | |
281 | set get_remote_address [target_info gdb,get_remote_address] | |
282 | } else { | |
283 | set get_remote_address gdbserver_default_get_remote_address | |
284 | } | |
ab19de87 DE |
285 | if [target_info exists gdbserver,get_comm_port] { |
286 | set get_comm_port [target_info gdbserver,get_comm_port] | |
287 | } else { | |
288 | set get_comm_port gdbserver_default_get_comm_port | |
289 | } | |
e0f9f062 | 290 | |
6f8eac0e DJ |
291 | # Extract the protocol |
292 | if [target_info exists gdb_protocol] { | |
293 | set protocol [target_info gdb_protocol] | |
294 | } else { | |
295 | set protocol "remote" | |
296 | } | |
297 | ||
298 | set gdbserver [find_gdbserver] | |
299 | ||
047427a8 JK |
300 | # Loop till we find a free port. |
301 | while 1 { | |
047427a8 JK |
302 | # Fire off the debug agent. |
303 | set gdbserver_command "$gdbserver" | |
03f2bd59 JK |
304 | |
305 | # If gdbserver_reconnect will be called $gdbserver_reconnect_p must be | |
306 | # set to true already during gdbserver_start. | |
307 | global gdbserver_reconnect_p | |
dd06d4d6 AH |
308 | global srcdir |
309 | global subdir | |
03f2bd59 JK |
310 | if {![info exists gdbserver_reconnect_p] || !$gdbserver_reconnect_p} { |
311 | # GDB client could accidentally connect to a stale server. | |
312 | append gdbserver_command " --once" | |
313 | } | |
314 | ||
5de96253 SM |
315 | #append gdbserver_command " --event-loop-debug" |
316 | #append gdbserver_command " --remote-debug" | |
317 | #append gdbserver_command " --debug" | |
318 | ||
dd06d4d6 AH |
319 | # Enable debug if set. |
320 | if [gdbserver_debug_enabled] { | |
321 | global gdbserverdebug | |
b420b89e AH |
322 | set enabled 0 |
323 | foreach entry [split $gdbserverdebug ,] { | |
324 | switch -- $entry { | |
325 | "debug" { | |
326 | append gdbserver_command " --debug" | |
327 | set enabled 1 | |
328 | } | |
329 | "remote" { | |
330 | append gdbserver_command " --remote-debug" | |
331 | set enabled 1 | |
332 | } | |
333 | } | |
334 | } | |
335 | # Ensure debugfile is only added if something has been enabled | |
336 | if { $enabled } { | |
337 | set debugfile [standard_output_file gdbserver.debug] | |
338 | append gdbserver_command " --debug-file=$debugfile" | |
dd06d4d6 AH |
339 | } |
340 | } | |
341 | ||
047427a8 JK |
342 | if { $options != "" } { |
343 | append gdbserver_command " $options" | |
344 | } | |
c7ab0aef SDJ |
345 | if { $debughost_gdbserver != "" } { |
346 | append gdbserver_command " $debughost_gdbserver" | |
347 | } | |
e0f9f062 | 348 | if { $portnum != "" } { |
c7ab0aef SDJ |
349 | if { $debughost_gdbserver == "" } { |
350 | append gdbserver_command " " | |
351 | } | |
352 | append gdbserver_command "[$get_comm_port $portnum]" | |
e0f9f062 | 353 | } |
047427a8 JK |
354 | if { $arguments != "" } { |
355 | append gdbserver_command " $arguments" | |
356 | } | |
6f8eac0e | 357 | |
408e9b8b AH |
358 | gdbserver_write_cmd_file $gdbserver_command |
359 | ||
6423214f | 360 | global server_spawn_id |
047427a8 JK |
361 | set server_spawn_id [remote_spawn target $gdbserver_command] |
362 | ||
f71c18e7 PA |
363 | # GDBserver doesn't do inferior I/O through GDB. But we can |
364 | # talk to the program using GDBserver's tty instead. | |
365 | global inferior_spawn_id | |
366 | set inferior_spawn_id $server_spawn_id | |
367 | ||
047427a8 JK |
368 | # Wait for the server to open its TCP socket, so that GDB can connect. |
369 | expect { | |
370 | -i $server_spawn_id | |
2bdd10b7 | 371 | -timeout 120 |
047427a8 JK |
372 | -notransfer |
373 | -re "Listening on" { } | |
01abb042 | 374 | -re "Can't (bind address|listen on socket): Address already in use\\.\r\n" { |
047427a8 JK |
375 | verbose -log "Port $portnum is already in use." |
376 | if ![target_info exists gdb,socketport] { | |
377 | # Bump the port number to avoid the conflict. | |
378 | wait -i $expect_out(spawn_id) | |
379 | incr portnum | |
380 | continue | |
381 | } | |
382 | } | |
fb66cde8 | 383 | -re ".*: cannot resolve name: .*\r\n" { |
c7ab0aef SDJ |
384 | error "gdbserver cannot resolve name." |
385 | } | |
09635af7 MR |
386 | timeout { |
387 | error "Timeout waiting for gdbserver response." | |
388 | } | |
047427a8 JK |
389 | } |
390 | break | |
6f8eac0e DJ |
391 | } |
392 | ||
5de96253 SM |
393 | drain_gdbserver_output |
394 | ||
e0f9f062 | 395 | return [list $protocol [$get_remote_address $debughost $portnum]] |
6f8eac0e DJ |
396 | } |
397 | ||
2d717e4f DJ |
398 | # Start a gdbserver process running SERVER_EXEC, and connect GDB |
399 | # to it. CHILD_ARGS are passed to the inferior. | |
400 | # | |
401 | # Returns the target protocol and socket to connect to. | |
402 | ||
403 | proc gdbserver_spawn { child_args } { | |
6496a609 | 404 | set target_exec [gdbserver_download_current_prog] |
2d717e4f DJ |
405 | |
406 | # Fire off the debug agent. This flavour of gdbserver takes as | |
407 | # arguments the port information, the name of the executable file to | |
408 | # be debugged, and any arguments. | |
409 | set arguments "$target_exec" | |
410 | if { $child_args != "" } { | |
411 | append arguments " $child_args" | |
412 | } | |
413 | return [gdbserver_start "" $arguments] | |
414 | } | |
415 | ||
6423214f PA |
416 | # Close the GDBserver connection. |
417 | ||
418 | proc close_gdbserver {} { | |
038d4868 | 419 | global server_spawn_id |
6423214f PA |
420 | |
421 | # We can't just call close, because if gdbserver is local then that means | |
422 | # that it will get a SIGHUP. Doing it this way could also allow us to | |
423 | # get at the inferior's input or output if necessary, and means that we | |
424 | # don't need to redirect output. | |
425 | ||
426 | if {![info exists server_spawn_id]} { | |
427 | return | |
428 | } | |
429 | ||
430 | verbose "Quitting GDBserver" | |
431 | ||
432 | catch "close -i $server_spawn_id" | |
e0d6d274 KB |
433 | |
434 | # If gdbserver misbehaves, and ignores the close, waiting for it | |
435 | # without the -nowait flag will cause testing to hang. Passing | |
436 | # -nowait makes expect tell Tcl to wait for the process in the | |
437 | # background. | |
438 | catch "wait -nowait -i $server_spawn_id" | |
6423214f PA |
439 | unset server_spawn_id |
440 | } | |
441 | ||
f73842fc YQ |
442 | # Hook into GDB exit, and close GDBserver. We must load this |
443 | # explicitly here, and rename the procedures we want to override. | |
444 | load_lib mi-support.exp | |
6423214f | 445 | |
9c211fd8 | 446 | if { [info procs gdbserver_orig_gdb_exit] == "" } { |
6423214f | 447 | rename gdb_exit gdbserver_orig_gdb_exit |
f73842fc | 448 | rename mi_gdb_exit gdbserver_orig_mi_gdb_exit |
6423214f | 449 | } |
f73842fc | 450 | |
f32682ea TV |
451 | # Cleanup gdbserver $server_spawn_id |
452 | ||
453 | proc gdbserver_exit { is_mi } { | |
038d4868 | 454 | global gdb_spawn_id server_spawn_id |
6423214f PA |
455 | global gdb_prompt |
456 | ||
457 | if {[info exists gdb_spawn_id] && [info exists server_spawn_id]} { | |
2efe15c4 YQ |
458 | # GDB may be terminated in an expected way or an unexpected way, |
459 | # but DejaGNU doesn't know that, so gdb_spawn_id isn't unset. | |
460 | # Catch the exceptions. | |
461 | catch { | |
f73842fc YQ |
462 | if { $is_mi } { |
463 | set monitor_exit "-interpreter-exec console \"monitor exit\"" | |
464 | } else { | |
465 | set monitor_exit "monitor exit" | |
466 | } | |
467 | send_gdb "$monitor_exit\n"; | |
2efe15c4 YQ |
468 | # We use expect rather than gdb_expect because |
469 | # we want to suppress printing exception messages, otherwise, | |
470 | # remote_expect, invoked by gdb_expect, prints the exceptions. | |
337882d4 | 471 | set have_prompt 0 |
2efe15c4 YQ |
472 | expect { |
473 | -i "$gdb_spawn_id" -re "$gdb_prompt $" { | |
337882d4 TV |
474 | set have_prompt 1 |
475 | if { [info exists server_spawn_id] } { | |
476 | exp_continue | |
477 | } | |
2efe15c4 YQ |
478 | } |
479 | -i "$server_spawn_id" eof { | |
480 | wait -i $expect_out(spawn_id) | |
481 | unset server_spawn_id | |
337882d4 TV |
482 | if { ! $have_prompt } { |
483 | exp_continue | |
484 | } | |
2efe15c4 | 485 | } |
f32682ea TV |
486 | timeout { |
487 | warning "Timed out waiting for EOF in server after $monitor_exit" | |
488 | } | |
6423214f PA |
489 | } |
490 | } | |
491 | } | |
492 | close_gdbserver | |
f32682ea TV |
493 | } |
494 | ||
495 | # Local version of gdb_exit that also cleans up gdbserver $server_spawn_id. | |
496 | ||
497 | proc gdbserver_gdb_exit { is_mi } { | |
498 | global gdb_spawn_id server_spawn_id | |
499 | global gdb_prompt | |
500 | global gdbserver_reconnect_p | |
501 | ||
502 | # Leave GDBserver running if we're exiting GDB in order to | |
503 | # reconnect to the same instance of GDBserver again. | |
504 | if {[info exists gdbserver_reconnect_p] && $gdbserver_reconnect_p} { | |
505 | if { $is_mi } { | |
506 | gdbserver_orig_mi_gdb_exit | |
507 | } else { | |
508 | gdbserver_orig_gdb_exit | |
509 | } | |
510 | return | |
511 | } | |
512 | ||
513 | gdbserver_exit $is_mi | |
6423214f | 514 | |
f73842fc YQ |
515 | if { $is_mi } { |
516 | gdbserver_orig_mi_gdb_exit | |
517 | } else { | |
518 | gdbserver_orig_gdb_exit | |
519 | } | |
520 | } | |
521 | ||
522 | proc gdb_exit {} { | |
523 | gdbserver_gdb_exit 0 | |
524 | } | |
525 | ||
526 | proc mi_gdb_exit {} { | |
527 | gdbserver_gdb_exit 1 | |
6423214f PA |
528 | } |
529 | ||
6f8eac0e | 530 | # Start a gdbserver process running HOST_EXEC and pass CHILD_ARGS |
09635af7 MR |
531 | # to it. Return 0 on success, or non-zero on failure: 2 if gdbserver |
532 | # failed to start or 1 if we couldn't connect to it. | |
6f8eac0e | 533 | |
b741e217 | 534 | proc gdbserver_run { child_args } { |
b0f4b84b DJ |
535 | global gdbserver_protocol |
536 | global gdbserver_gdbport | |
537 | ||
5de96253 SM |
538 | drain_gdbserver_output |
539 | ||
2226f861 DJ |
540 | # Kill anything running before we try to start gdbserver, in case |
541 | # we are sharing a serial connection. | |
542 | global gdb_prompt | |
ce3ebcaa | 543 | send_gdb "kill\n" optional |
2226f861 DJ |
544 | gdb_expect 120 { |
545 | -re "Kill the program being debugged. .y or n. $" { | |
546 | send_gdb "y\n" | |
547 | verbose "\t\tKilling previous program being debugged" | |
548 | exp_continue | |
549 | } | |
550 | -re "$gdb_prompt $" { | |
551 | # OK. | |
552 | } | |
553 | } | |
554 | ||
09635af7 MR |
555 | if { [catch { gdbserver_spawn $child_args } res] == 1 } { |
556 | perror $res | |
557 | return 2 | |
558 | } | |
b0f4b84b DJ |
559 | set gdbserver_protocol [lindex $res 0] |
560 | set gdbserver_gdbport [lindex $res 1] | |
561 | ||
562 | return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] | |
563 | } | |
564 | ||
565 | # Reconnect to the previous gdbserver session. | |
566 | ||
567 | proc gdbserver_reconnect { } { | |
568 | global gdbserver_protocol | |
569 | global gdbserver_gdbport | |
6f8eac0e | 570 | |
4ec70201 | 571 | global gdbserver_reconnect_p |
03f2bd59 JK |
572 | if {![info exists gdbserver_reconnect_p] || !$gdbserver_reconnect_p} { |
573 | error "gdbserver_reconnect_p is not set before gdbserver_reconnect" | |
574 | return 0 | |
575 | } | |
576 | ||
b0f4b84b | 577 | return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] |
6f8eac0e | 578 | } |
2d717e4f | 579 | |
8cfe207c YQ |
580 | # Start gdbserver in extended mode with OPTIONS and connect to it. Note |
581 | # this frobs $gdbserver_protocol, so should be used only from a board | |
582 | # that usually connects in target remote mode. | |
583 | proc gdbserver_start_extended { {options ""} } { | |
e11ac3a3 JK |
584 | global gdbserver_protocol |
585 | global gdbserver_gdbport | |
586 | global use_gdb_stub | |
587 | ||
8cfe207c YQ |
588 | set gdbserver_options "--multi" |
589 | ||
590 | if { $options != "" } { | |
591 | append gdbserver_options " $options" | |
592 | } | |
593 | ||
594 | if { [catch { gdbserver_start $gdbserver_options "" } res] == 1 } { | |
09635af7 MR |
595 | perror $res |
596 | return 2 | |
597 | } | |
a1999d40 PA |
598 | set gdbserver_protocol [lindex $res 0] |
599 | if { [string first "extended-" $gdbserver_protocol] != 0} { | |
600 | set gdbserver_protocol "extended-$gdbserver_protocol" | |
601 | } | |
2d717e4f DJ |
602 | set gdbserver_gdbport [lindex $res 1] |
603 | ||
e11ac3a3 JK |
604 | # Even if the board file is testing with target remote, our caller |
605 | # wants to test against gdbserver in extended-remote mode. Make sure to | |
606 | # disable stub-like techniques. | |
607 | set use_gdb_stub 0 | |
608 | ||
2d717e4f DJ |
609 | return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] |
610 | } | |
048fe15a PA |
611 | |
612 | # Start and connect to a gdbserver in extended/multi mode. Unlike | |
613 | # gdbserver_start_extended, this does not frob $gdbserver_protocol. | |
614 | ||
615 | proc gdbserver_start_multi { } { | |
616 | global gdbserver_protocol | |
617 | global gdbserver_gdbport | |
618 | ||
09635af7 MR |
619 | if { [catch { gdbserver_start "--multi" "" } res] == 1 } { |
620 | perror $res | |
621 | return 2 | |
622 | } | |
048fe15a PA |
623 | set gdbserver_protocol [lindex $res 0] |
624 | set gdbserver_gdbport [lindex $res 1] | |
625 | ||
626 | return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] | |
627 | } | |
628 | ||
629 | # Start a gdbserver process in multi/extended mode, and have GDB | |
630 | # connect to it (MI version). Return 0 on success, or non-zero on | |
631 | # failure. | |
632 | ||
633 | proc mi_gdbserver_start_multi { } { | |
634 | global gdbserver_protocol | |
635 | global gdbserver_gdbport | |
636 | ||
09635af7 MR |
637 | if { [catch { gdbserver_start "--multi" "" } res] == 1 } { |
638 | perror $res | |
639 | return 2 | |
640 | } | |
048fe15a PA |
641 | set gdbserver_protocol [lindex $res 0] |
642 | set gdbserver_gdbport [lindex $res 1] | |
643 | ||
644 | return [mi_gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport] | |
645 | } | |
dd06d4d6 AH |
646 | |
647 | # Check if debugging is enabled for gdbserver. | |
648 | ||
649 | proc gdbserver_debug_enabled { } { | |
650 | global gdbserverdebug | |
651 | ||
652 | # If not already read, get the debug setting from environment or board setting. | |
653 | if ![info exists gdbserverdebug] { | |
654 | global env | |
655 | if [info exists env(GDBSERVER_DEBUG)] { | |
656 | set gdbserverdebug $env(GDBSERVER_DEBUG) | |
657 | } elseif [target_info exists gdbserver,debug] { | |
658 | set gdbserverdebug [target_info gdbserver,debug] | |
659 | } else { | |
660 | return 0 | |
661 | } | |
662 | } | |
663 | ||
b420b89e AH |
664 | # Expand the all option |
665 | if { $gdbserverdebug == "all" } { | |
666 | set gdbserverdebug "debug,remote,replay" | |
667 | } | |
668 | ||
669 | # Ensure it is not empty. | |
670 | return [expr { $gdbserverdebug != "" }] | |
dd06d4d6 | 671 | } |
408e9b8b AH |
672 | |
673 | # Write the command line used to invocate gdbserver to the cmd file. | |
674 | ||
675 | proc gdbserver_write_cmd_file { cmdline } { | |
676 | set logfile [standard_output_file_with_gdb_instance gdbserver.cmd] | |
677 | set cmd_file [open $logfile w] | |
678 | puts $cmd_file $cmdline | |
679 | catch "close $cmd_file" | |
680 | } | |
b420b89e AH |
681 | |
682 | # Override gdb_debug_init so that we can set replay logging in GDB if required. | |
683 | # Backup the original function so we can call it afterwards | |
684 | ||
685 | rename gdb_debug_init _gdb_debug_init | |
686 | ||
687 | proc gdb_debug_init { } { | |
688 | global gdbserverdebug | |
689 | global gdb_prompt | |
690 | ||
691 | if [gdbserver_debug_enabled] { | |
692 | foreach entry [split $gdbserverdebug ,] { | |
693 | if { $entry == "replay" } { | |
694 | set replayfile [standard_output_file_with_gdb_instance gdbserver.replay] | |
695 | send_gdb "set remotelogfile $replayfile\n" optional | |
696 | gdb_expect 10 { | |
697 | -re "$gdb_prompt $" {} | |
698 | } | |
699 | } | |
700 | } | |
701 | } | |
702 | ||
703 | # Now call the standard debug init function | |
704 | _gdb_debug_init | |
705 | } |