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19fa4a0a MW |
1 | # Copyright (C) 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
16 | ||
17 | # Please email any bugs, comments, and/or additions to this file to: | |
c79f61db | 18 | # bug-gdb@prep.ai.mit.edu |
19fa4a0a MW |
19 | |
20 | # This file was written by Fred Fish. (fnf@cygnus.com) | |
21 | ||
22 | # Generic gdb subroutines that should work for any target. If these | |
23 | # need to be modified for any target, it can be done with a variable | |
24 | # or by passing arguments. | |
25 | ||
9bcc6c3f RS |
26 | global GDB |
27 | if ![info exists GDB] then { | |
90fba5fa | 28 | set GDB [transform gdb] |
9bcc6c3f RS |
29 | } |
30 | ||
31 | global GDBFLAGS | |
85174909 RS |
32 | if ![info exists GDBFLAGS] then { |
33 | set GDBFLAGS "" | |
34 | } | |
35 | ||
90fba5fa BC |
36 | # set the prompt if it doesn't exist |
37 | global prompt | |
38 | if ![info exists prompt] then { | |
39 | set prompt "\[(\]gdb\[)\]" | |
40 | } | |
41 | ||
5019a275 RS |
42 | # |
43 | # gdb_version -- extract and print the version number of gcc | |
44 | # | |
45 | proc default_gdb_version {} { | |
46 | global GDB | |
47 | global GDBFLAGS | |
48 | if {[which $GDB] != 0} then { | |
49 | set tmp [exec echo "q" | $GDB] | |
85174909 RS |
50 | regexp " \[0-9\.\]+" $tmp version |
51 | clone_output "[which $GDB] version$version $GDBFLAGS\n" | |
5019a275 RS |
52 | } else { |
53 | warning "$GDB does not exist" | |
54 | } | |
55 | } | |
56 | ||
19fa4a0a MW |
57 | # |
58 | # gdb_unload -- unload a file if one is loaded | |
59 | # | |
60 | ||
61 | proc gdb_unload {} { | |
62 | global verbose | |
63 | global GDB | |
64 | global prompt | |
65 | send "file\n" | |
66 | expect { | |
9bcc6c3f RS |
67 | -re "No exec file now.*\r" { exp_continue } |
68 | -re "No symbol file now.*\r" { exp_continue } | |
69 | -re "A program is being debugged already..*Kill it.*y or n. $"\ | |
19fa4a0a | 70 | { send "y\n" |
85174909 | 71 | verbose "\t\tKilling previous program being debugged" |
9bcc6c3f | 72 | exp_continue |
19fa4a0a | 73 | } |
9bcc6c3f | 74 | -re "Discard symbol table from .*y or n. $" { |
19fa4a0a | 75 | send "y\n" |
9bcc6c3f | 76 | exp_continue |
19fa4a0a MW |
77 | } |
78 | -re "$prompt $" {} | |
79 | timeout { | |
85174909 | 80 | perror "couldn't unload file in $GDB (timed out)." |
c79f61db | 81 | return -1 |
19fa4a0a MW |
82 | } |
83 | } | |
84 | } | |
85 | ||
86 | # Many of the tests depend on setting breakpoints at various places and | |
87 | # running until that breakpoint is reached. At times, we want to start | |
88 | # with a clean-slate with respect to breakpoints, so this utility proc | |
89 | # lets us do this without duplicating this code everywhere. | |
90 | # | |
91 | ||
92 | proc delete_breakpoints {} { | |
93 | global prompt | |
94 | ||
95 | send "delete breakpoints\n" | |
96 | expect { | |
9bcc6c3f | 97 | -re "Delete all breakpoints.*y or n. $" { |
19fa4a0a | 98 | send "y\n" |
9bcc6c3f | 99 | exp_continue |
19fa4a0a MW |
100 | } |
101 | -re "y\r\n$prompt $" {} | |
9bcc6c3f | 102 | -re ".*$prompt $" { perror "Delete all breakpoints" ; return } |
8f07e537 | 103 | timeout { perror "Delete all breakpoints (timeout)" ; return } |
19fa4a0a MW |
104 | } |
105 | send "info breakpoints\n" | |
106 | expect { | |
107 | -re "No breakpoints or watchpoints..*$prompt $" {} | |
9bcc6c3f | 108 | -re ".*$prompt $" { perror "breakpoints not deleted" ; return } |
8f07e537 | 109 | timeout { perror "info breakpoints (timeout)" ; return } |
19fa4a0a MW |
110 | } |
111 | } | |
112 | ||
113 | ||
114 | # | |
115 | # Set breakpoint at function and run gdb until it breaks there. | |
116 | # Since this is the only breakpoint that will be set, if it stops | |
117 | # at a breakpoint, we will assume it is the one we want. We can't | |
118 | # just compare to "function" because it might be a fully qualified, | |
119 | # single quoted C++ function specifier. | |
120 | # | |
121 | ||
122 | proc runto { function } { | |
123 | global prompt | |
124 | global decimal | |
125 | ||
126 | send "delete\n" | |
127 | expect { | |
9bcc6c3f | 128 | -re "delete.*Delete all breakpoints.*y or n. $" { |
19fa4a0a MW |
129 | send "y\n" |
130 | expect { | |
131 | -re "$prompt $" {} | |
132 | timeout { fail "deleting breakpoints (timeout)" ; return 0 } | |
133 | } | |
134 | } | |
135 | -re ".*$prompt $" {} | |
136 | timeout { fail "deleting breakpoints (timeout)" ; return 0 } | |
137 | } | |
138 | ||
139 | send "break $function\n" | |
c79f61db | 140 | # The first regexp is what we get with -g, the second without -g. |
19fa4a0a MW |
141 | expect { |
142 | -re "Break.* at .*: file .*, line $decimal.\r\n$prompt $" {} | |
c79f61db | 143 | -re "Breakpoint \[0-9\]* at 0x\[0-9a-f\]*.*$prompt $" {} |
19fa4a0a MW |
144 | -re "$prompt $" { fail "setting breakpoint at $function" ; return 0 } |
145 | timeout { fail "setting breakpoint at $function (timeout)" ; return 0 } | |
146 | } | |
147 | ||
148 | send "run\n" | |
c79f61db RS |
149 | # the "at foo.c:36" output we get with -g. |
150 | # the "in func" output we get without -g. | |
19fa4a0a | 151 | expect { |
9bcc6c3f | 152 | -re "The program .* has been started already.*y or n. $" { |
19fa4a0a | 153 | send "y\n" |
9bcc6c3f | 154 | exp_continue |
19fa4a0a | 155 | } |
c79f61db RS |
156 | -re "Starting.*Break.* at .*:$decimal.*$prompt $" { return 1 } |
157 | -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in $function.*$prompt $" { | |
158 | return 1 | |
159 | } | |
19fa4a0a MW |
160 | -re "$prompt $" { fail "running to $function" ; return 0 } |
161 | timeout { fail "running to $function (timeout)" ; return 0 } | |
162 | } | |
163 | } | |
164 | ||
165 | # | |
166 | # gdb_test -- send a command to gdb and test the result. | |
167 | # Takes three parameters. | |
168 | # Parameters: | |
169 | # First one is the command to execute, | |
170 | # Second one is the pattern to match for a PASS, | |
171 | # Third one is an optional message to be printed. If this | |
172 | # a null string "", then the pass/fail messages are not printed. | |
173 | # Returns: | |
174 | # 1 if the test failed, | |
175 | # 0 if the test passes, | |
176 | # -1 if there was an internal error. | |
177 | # | |
178 | proc gdb_test { args } { | |
179 | global verbose | |
180 | global prompt | |
181 | global GDB | |
182 | global spawn_id | |
183 | ||
184 | if [llength $args]==3 then { | |
185 | set message [lindex $args 2] | |
186 | } else { | |
187 | set message [lindex $args 0] | |
188 | } | |
189 | set command [lindex $args 0] | |
190 | set pattern [lindex $args 1] | |
191 | ||
192 | if $verbose>2 then { | |
193 | send_user "Sending \"$command\" to gdb\n" | |
194 | send_user "Looking to match \"$pattern\"\n" | |
195 | send_user "Message is \"$message\"\n" | |
196 | } | |
197 | ||
198 | set result -1 | |
199 | set errmess "" | |
200 | # trap the send so any problems don't crash things | |
201 | catch "send \"$command\n\"" errmess | |
9bcc6c3f | 202 | if [string match "write.spawn_id=\[0-9\]+.:" $errmess] then { |
85174909 | 203 | perror "sent \"$command\" got expect error \"$errmess\"" |
c79f61db RS |
204 | catch "close" |
205 | gdb_start | |
19fa4a0a MW |
206 | return -1 |
207 | } | |
208 | ||
209 | expect { | |
210 | -re ".*Ending remote debugging.*$prompt$" { | |
211 | if ![isnative] then { | |
212 | warning "Can`t communicate to remote target." | |
213 | } | |
214 | gdb_exit | |
215 | gdb_start | |
216 | set result -1 | |
217 | } | |
218 | -re "$pattern.*$prompt $" { | |
219 | if ![string match "" $message] then { | |
220 | pass "$message" | |
221 | } | |
222 | set result 0 | |
223 | } | |
224 | -re "Undefined command:.*$prompt" { | |
85174909 | 225 | perror "Undefined command \"$command\"." |
c79f61db | 226 | set result 1 |
19fa4a0a MW |
227 | } |
228 | -re "Ambiguous command.*$prompt $" { | |
85174909 | 229 | perror "\"$command\" is not a unique command name." |
c79f61db | 230 | set result 1 |
19fa4a0a MW |
231 | } |
232 | -re ".*$prompt $" { | |
233 | if ![string match "" $message] then { | |
234 | fail "$message" | |
235 | } | |
236 | set result 1 | |
237 | } | |
238 | "<return>" { | |
239 | send "\n" | |
85174909 | 240 | perror "Window too small." |
19fa4a0a | 241 | } |
9bcc6c3f | 242 | -re "\[(\]+y or n\[)\]+ " { |
19fa4a0a | 243 | send "n\n" |
85174909 | 244 | perror "Got interactive prompt." |
19fa4a0a | 245 | } |
c79f61db | 246 | eof { |
85174909 | 247 | perror "Process no longer exists" |
c79f61db RS |
248 | return -1 |
249 | } | |
19fa4a0a | 250 | buffer_full { |
85174909 | 251 | perror "internal buffer is full." |
19fa4a0a | 252 | } |
19fa4a0a MW |
253 | timeout { |
254 | fail "(timeout) $message" | |
255 | set result 1 | |
256 | } | |
257 | } | |
258 | return $result | |
259 | } | |
260 | ||
faa15770 PB |
261 | # Given an input string, adds backslashes as needed to create a |
262 | # regexp that will match the string. | |
263 | proc string_to_regexp {str} { | |
264 | regsub -all {[]*+.|()^$[]} $str {\\&} result | |
265 | return $result | |
266 | } | |
267 | ||
268 | # Same as gdb_test, but the second parameter is not a regexp, | |
269 | # but a string that must match exactly. | |
270 | ||
271 | proc gdb_test_exact { args } { | |
272 | set command [lindex $args 0] | |
273 | set pattern [string_to_regexp [lindex args 1]] | |
274 | if [llength $args]==3 then { | |
275 | set message [lindex $args 2] | |
276 | } else { | |
277 | set message $command | |
278 | } | |
279 | return [gdb_test $command $pattern $message] | |
280 | } | |
281 | ||
19fa4a0a MW |
282 | proc gdb_reinitialize_dir { subdir } { |
283 | global prompt | |
19fa4a0a | 284 | |
85174909 | 285 | send "dir\n" |
19fa4a0a MW |
286 | expect { |
287 | -re "Reinitialize source path to empty.*" { | |
288 | send "y\n" | |
289 | expect { | |
290 | -re "Source directories searched.*$prompt $" { | |
291 | send "dir $subdir\n" | |
292 | expect { | |
293 | -re "Source directories searched.*$prompt $" { | |
85174909 | 294 | verbose "Dir set to $subdir" |
19fa4a0a MW |
295 | } |
296 | -re ".*$prompt $" { | |
85174909 | 297 | perror "Dir \"$subdir\" failed." |
19fa4a0a MW |
298 | } |
299 | } | |
300 | } | |
301 | -re ".*$prompt $" { | |
85174909 | 302 | perror "Dir \"$subdir\" failed." |
19fa4a0a MW |
303 | } |
304 | } | |
305 | } | |
306 | -re ".*$prompt $" { | |
85174909 | 307 | perror "Dir \"$subdir\" failed." |
19fa4a0a MW |
308 | } |
309 | } | |
310 | } | |
c79f61db | 311 | |
c79f61db RS |
312 | # |
313 | # gdb_exit -- exit the GDB, killing the target program if necessary | |
314 | # | |
315 | proc default_gdb_exit {} { | |
316 | global GDB | |
317 | global GDBFLAGS | |
318 | global verbose | |
319 | ||
002cc99f | 320 | verbose "Quitting $GDB $GDBFLAGS" |
c79f61db RS |
321 | |
322 | # This used to be 1 for unix-gdb.exp | |
323 | set timeout 5 | |
324 | ||
90fba5fa BC |
325 | # We used to try to send "quit" to GDB, and wait for it to die. |
326 | # Dealing with all the cases and errors got pretty hairy. Just close it, | |
327 | # that is simpler. | |
328 | close | |
329 | ||
330 | # Omitting this probably would cause strange timing-dependent failures. | |
c79f61db RS |
331 | wait |
332 | } | |
333 | ||
85174909 RS |
334 | # |
335 | # gdb_load -- load a file into the debugger. | |
336 | # return a -1 if anything goes wrong. | |
337 | # | |
338 | proc gdb_file_cmd { arg } { | |
339 | global verbose | |
340 | global loadpath | |
341 | global loadfile | |
342 | global GDB | |
343 | global prompt | |
9bcc6c3f | 344 | global spawn_id |
85174909 RS |
345 | |
346 | send "file $arg\n" | |
347 | expect { | |
348 | -re "Reading symbols from.*done.*$prompt $" { | |
349 | verbose "\t\tLoaded $arg into the $GDB" | |
350 | return 0 | |
351 | } | |
352 | -re "has no symbol-table.*$prompt $" { | |
353 | perror "$arg wasn't compiled with \"-g\"" | |
354 | return -1 | |
355 | } | |
9bcc6c3f | 356 | -re "A program is being debugged already.*Kill it.*y or n. $" { |
85174909 RS |
357 | send "y\n" |
358 | verbose "\t\tKilling previous program being debugged" | |
9bcc6c3f | 359 | exp_continue |
85174909 | 360 | } |
9bcc6c3f | 361 | -re "Load new symbol table from \".*\".*y or n. $" { |
85174909 RS |
362 | send "y\n" |
363 | expect { | |
364 | -re "Reading symbols from.*done.*$prompt $" { | |
365 | verbose "\t\tLoaded $arg with new symbol table into $GDB" | |
366 | return 0 | |
367 | } | |
368 | timeout { | |
369 | perror "(timeout) Couldn't load $arg, other program already l | |
370 | oaded." | |
371 | return -1 | |
372 | } | |
373 | } | |
374 | } | |
375 | -re ".*No such file or directory.*$prompt $" { | |
376 | perror "($arg) No such file or directory\n" | |
377 | return -1 | |
378 | } | |
379 | -re "$prompt $" { | |
380 | perror "couldn't load $arg into $GDB." | |
381 | return -1 | |
382 | } | |
383 | timeout { | |
9bcc6c3f | 384 | perror "couldn't load $arg into $GDB (timed out)." |
85174909 RS |
385 | return -1 |
386 | } | |
387 | eof { | |
388 | # This is an attempt to detect a core dump, but seems not to | |
389 | # work. Perhaps we need to match .* followed by eof, in which | |
390 | # expect does not seem to have a way to do that. | |
8f07e537 | 391 | perror "couldn't load $arg into $GDB (end of file)." |
85174909 RS |
392 | return -1 |
393 | } | |
394 | } | |
395 | } | |
c79f61db | 396 | |
9bcc6c3f RS |
397 | # |
398 | # FIXME: this is a copy of the new library procedure, but it's here too | |
399 | # till the new dejagnu gets installed everywhere. I'd hate to break the | |
400 | # gdb tests suite. | |
401 | # | |
002cc99f RS |
402 | global argv0 |
403 | if ![info exists argv0] then { | |
9bcc6c3f RS |
404 | proc exp_continue { } { |
405 | continue -expect | |
406 | } | |
407 | } | |
c79f61db RS |
408 | |
409 |