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c906108c SS |
1 | # Copyright (C) 1992, 1994, 1995, 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 | # bug-gdb@prep.ai.mit.edu | |
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 | ||
26 | load_lib libgloss.exp | |
27 | ||
28 | global GDB | |
29 | global CHILL_LIB | |
30 | global CHILL_RT0 | |
31 | ||
32 | if ![info exists CHILL_LIB] { | |
33 | set CHILL_LIB [findfile $base_dir/../../gcc/ch/runtime/libchill.a "$base_dir/../../gcc/ch/runtime/libchill.a" [transform -lchill]] | |
34 | } | |
35 | verbose "using CHILL_LIB = $CHILL_LIB" 2 | |
36 | if ![info exists CHILL_RT0] { | |
37 | set CHILL_RT0 [findfile $base_dir/../../gcc/ch/runtime/chillrt0.o "$base_dir/../../gcc/ch/runtime/chillrt0.o" ""] | |
38 | } | |
39 | verbose "using CHILL_RT0 = $CHILL_RT0" 2 | |
40 | ||
41 | if [info exists TOOL_EXECUTABLE] { | |
42 | set GDB $TOOL_EXECUTABLE; | |
43 | } | |
44 | if ![info exists GDB] { | |
45 | if ![is_remote host] { | |
46 | set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]] | |
47 | } else { | |
48 | set GDB [transform gdb]; | |
49 | } | |
50 | } | |
51 | verbose "using GDB = $GDB" 2 | |
52 | ||
53 | global GDBFLAGS | |
54 | if ![info exists GDBFLAGS] { | |
55 | set GDBFLAGS "-nx" | |
56 | } | |
57 | verbose "using GDBFLAGS = $GDBFLAGS" 2 | |
58 | ||
59 | # The variable prompt is a regexp which matches the gdb prompt. Set it if it | |
60 | # is not already set. | |
61 | global gdb_prompt | |
62 | if ![info exists prompt] then { | |
63 | set gdb_prompt "\[(\]gdb\[)\]" | |
64 | } | |
65 | ||
66 | # | |
67 | # gdb_version -- extract and print the version number of GDB | |
68 | # | |
69 | proc default_gdb_version {} { | |
70 | global GDB | |
71 | global GDBFLAGS | |
72 | global gdb_prompt | |
73 | set fileid [open "gdb_cmd" w]; | |
74 | puts $fileid "q"; | |
75 | close $fileid; | |
76 | set cmdfile [remote_download host "gdb_cmd"]; | |
77 | set output [remote_exec host "$GDB -nw --command $cmdfile"] | |
78 | remote_file build delete "gdb_cmd"; | |
79 | remote_file host delete "$cmdfile"; | |
80 | set tmp [lindex $output 1]; | |
81 | set version "" | |
82 | regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version | |
83 | if ![is_remote host] { | |
84 | clone_output "[which $GDB] version $version $GDBFLAGS\n" | |
85 | } else { | |
86 | clone_output "$GDB on remote host version $version $GDBFLAGS\n" | |
87 | } | |
88 | } | |
89 | ||
90 | proc gdb_version { } { | |
91 | return [default_gdb_version]; | |
92 | } | |
93 | ||
94 | # | |
95 | # gdb_unload -- unload a file if one is loaded | |
96 | # | |
97 | ||
98 | proc gdb_unload {} { | |
99 | global verbose | |
100 | global GDB | |
101 | global gdb_prompt | |
102 | send_gdb "file\n" | |
103 | gdb_expect 60 { | |
104 | -re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue } | |
105 | -re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue } | |
106 | -re "A program is being debugged already..*Kill it.*y or n. $"\ | |
107 | { send_gdb "y\n" | |
108 | verbose "\t\tKilling previous program being debugged" | |
109 | exp_continue | |
110 | } | |
111 | -re "Discard symbol table from .*y or n.*$" { | |
112 | send_gdb "y\n" | |
113 | exp_continue | |
114 | } | |
115 | -re "$gdb_prompt $" {} | |
116 | timeout { | |
117 | perror "couldn't unload file in $GDB (timed out)." | |
118 | return -1 | |
119 | } | |
120 | } | |
121 | } | |
122 | ||
123 | # Many of the tests depend on setting breakpoints at various places and | |
124 | # running until that breakpoint is reached. At times, we want to start | |
125 | # with a clean-slate with respect to breakpoints, so this utility proc | |
126 | # lets us do this without duplicating this code everywhere. | |
127 | # | |
128 | ||
129 | proc delete_breakpoints {} { | |
130 | global gdb_prompt | |
131 | ||
132 | send_gdb "delete breakpoints\n" | |
133 | gdb_expect 30 { | |
134 | -re "Delete all breakpoints.*y or n.*$" { | |
135 | send_gdb "y\n"; | |
136 | exp_continue | |
137 | } | |
138 | -re "$gdb_prompt $" { # This happens if there were no breakpoints | |
139 | } | |
140 | timeout { perror "Delete all breakpoints in delete_breakpoints (timeout)" ; return } | |
141 | } | |
142 | send_gdb "info breakpoints\n" | |
143 | gdb_expect 30 { | |
144 | -re "No breakpoints or watchpoints..*$gdb_prompt $" {} | |
145 | -re "$gdb_prompt $" { perror "breakpoints not deleted" ; return } | |
146 | -re "Delete all breakpoints.*or n.*$" { | |
147 | send_gdb "y\n"; | |
148 | exp_continue | |
149 | } | |
150 | timeout { perror "info breakpoints (timeout)" ; return } | |
151 | } | |
152 | } | |
153 | ||
154 | ||
155 | # | |
156 | # Generic run command. | |
157 | # | |
158 | # The second pattern below matches up to the first newline *only*. | |
159 | # Using ``.*$'' could swallow up output that we attempt to match | |
160 | # elsewhere. | |
161 | # | |
162 | proc gdb_run_cmd {args} { | |
163 | global gdb_prompt | |
164 | ||
165 | if [target_info exists gdb_init_command] { | |
166 | send_gdb "[target_info gdb_init_command]\n"; | |
167 | gdb_expect 30 { | |
168 | -re "$gdb_prompt $" { } | |
169 | default { | |
170 | perror "gdb_init_command for target failed"; | |
171 | return; | |
172 | } | |
173 | } | |
174 | } | |
175 | ||
176 | if [target_info exists use_gdb_stub] { | |
177 | if [target_info exists gdb,do_reload_on_run] { | |
178 | # According to Stu, this will always work. | |
179 | gdb_load ""; | |
180 | send_gdb "continue\n"; | |
181 | gdb_expect 60 { | |
182 | -re "Continu\[^\r\n\]*\[\r\n\]" {} | |
183 | default {} | |
184 | } | |
185 | return; | |
186 | } | |
187 | ||
188 | if [target_info exists gdb,start_symbol] { | |
189 | set start [target_info gdb,start_symbol]; | |
190 | } else { | |
191 | set start "start"; | |
192 | } | |
193 | send_gdb "jump *$start\n" | |
194 | gdb_expect 30 { | |
195 | -re "Continuing at \[^\r\n\]*\[\r\n\]" { | |
196 | if ![target_info exists gdb_stub] { | |
197 | return; | |
198 | } | |
199 | } | |
200 | -re "No symbol \"start\" in current.*$gdb_prompt $" { | |
201 | send_gdb "jump *_start\n"; | |
202 | exp_continue; | |
203 | } | |
204 | -re "No symbol \"_start\" in current.*$gdb_prompt $" { | |
205 | perror "Can't find start symbol to run in gdb_run"; | |
206 | return; | |
207 | } | |
208 | -re "Line.* Jump anyway.*y or n. $" { | |
209 | send_gdb "y\n" | |
210 | exp_continue; | |
211 | } | |
212 | -re "No symbol.*context.*$gdb_prompt $" {} | |
213 | -re "The program is not being run.*$gdb_prompt $" { | |
214 | gdb_load ""; | |
215 | send_gdb "jump *$start\n"; | |
216 | exp_continue; | |
217 | } | |
218 | timeout { perror "Jump to start() failed (timeout)"; return } | |
219 | } | |
220 | if [target_info exists gdb_stub] { | |
221 | gdb_expect 60 { | |
222 | -re "$gdb_prompt $" { | |
223 | send_gdb "continue\n" | |
224 | } | |
225 | } | |
226 | } | |
227 | return | |
228 | } | |
229 | send_gdb "run $args\n" | |
230 | # This doesn't work quite right yet. | |
231 | gdb_expect 60 { | |
232 | -re "The program .* has been started already.*y or n. $" { | |
233 | send_gdb "y\n" | |
234 | exp_continue | |
235 | } | |
236 | -re "Starting program: \[^\r\n\]*" {} | |
237 | } | |
238 | } | |
239 | ||
240 | proc gdb_breakpoint { function } { | |
241 | global gdb_prompt | |
242 | global decimal | |
243 | ||
244 | send_gdb "break $function\n" | |
245 | # The first two regexps are what we get with -g, the third is without -g. | |
246 | gdb_expect 30 { | |
247 | -re "Breakpoint \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {} | |
248 | -re "Breakpoint \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {} | |
249 | -re "Breakpoint \[0-9\]* at .*$gdb_prompt $" {} | |
250 | -re "$gdb_prompt $" { fail "setting breakpoint at $function" ; return 0 } | |
251 | timeout { fail "setting breakpoint at $function (timeout)" ; return 0 } | |
252 | } | |
253 | return 1; | |
254 | } | |
255 | ||
256 | # Set breakpoint at function and run gdb until it breaks there. | |
257 | # Since this is the only breakpoint that will be set, if it stops | |
258 | # at a breakpoint, we will assume it is the one we want. We can't | |
259 | # just compare to "function" because it might be a fully qualified, | |
260 | # single quoted C++ function specifier. | |
261 | ||
262 | proc runto { function } { | |
263 | global gdb_prompt | |
264 | global decimal | |
265 | ||
266 | delete_breakpoints | |
267 | ||
268 | if ![gdb_breakpoint $function] { | |
269 | return 0; | |
270 | } | |
271 | ||
272 | gdb_run_cmd | |
273 | ||
274 | # the "at foo.c:36" output we get with -g. | |
275 | # the "in func" output we get without -g. | |
276 | gdb_expect 30 { | |
277 | -re "Break.* at .*:$decimal.*$gdb_prompt $" { | |
278 | return 1 | |
279 | } | |
280 | -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { | |
281 | return 1 | |
282 | } | |
283 | -re "$gdb_prompt $" { | |
284 | fail "running to $function in runto" | |
285 | return 0 | |
286 | } | |
287 | timeout { | |
288 | fail "running to $function in runto (timeout)" | |
289 | return 0 | |
290 | } | |
291 | } | |
292 | return 1 | |
293 | } | |
294 | ||
295 | # | |
296 | # runto_main -- ask gdb to run until we hit a breakpoint at main. | |
297 | # The case where the target uses stubs has to be handled | |
298 | # specially--if it uses stubs, assuming we hit | |
299 | # breakpoint() and just step out of the function. | |
300 | # | |
301 | proc runto_main { } { | |
302 | global gdb_prompt | |
303 | global decimal | |
304 | ||
305 | if ![target_info exists gdb_stub] { | |
306 | return [runto main] | |
307 | } | |
308 | ||
309 | delete_breakpoints | |
310 | ||
311 | gdb_step_for_stub; | |
312 | ||
313 | return 1 | |
314 | } | |
315 | ||
316 | # gdb_test COMMAND PATTERN MESSAGE -- send a command to gdb; test the result. | |
317 | # | |
318 | # COMMAND is the command to execute, send to GDB with send_gdb. If | |
319 | # this is the null string no command is sent. | |
320 | # PATTERN is the pattern to match for a PASS, and must NOT include | |
321 | # the \r\n sequence immediately before the gdb prompt. | |
322 | # MESSAGE is an optional message to be printed. If this is | |
323 | # omitted, then the pass/fail messages use the command string as the | |
324 | # message. (If this is the empty string, then sometimes we don't | |
325 | # call pass or fail at all; I don't understand this at all.) | |
326 | # | |
327 | # Returns: | |
328 | # 1 if the test failed, | |
329 | # 0 if the test passes, | |
330 | # -1 if there was an internal error. | |
331 | # | |
332 | proc gdb_test { args } { | |
333 | global verbose | |
334 | global gdb_prompt | |
335 | global GDB | |
336 | upvar timeout timeout | |
337 | ||
338 | if [llength $args]>2 then { | |
339 | set message [lindex $args 2] | |
340 | } else { | |
341 | set message [lindex $args 0] | |
342 | } | |
343 | set command [lindex $args 0] | |
344 | set pattern [lindex $args 1] | |
345 | ||
346 | if [llength $args]==5 { | |
347 | set question_string [lindex $args 3]; | |
348 | set response_string [lindex $args 4]; | |
349 | } else { | |
350 | set question_string "^FOOBAR$" | |
351 | } | |
352 | ||
353 | if $verbose>2 then { | |
354 | send_user "Sending \"$command\" to gdb\n" | |
355 | send_user "Looking to match \"$pattern\"\n" | |
356 | send_user "Message is \"$message\"\n" | |
357 | } | |
358 | ||
359 | set result -1 | |
360 | set string "${command}\n"; | |
361 | if { $command != "" } { | |
362 | while { "$string" != "" } { | |
363 | set foo [string first "\n" "$string"]; | |
364 | set len [string length "$string"]; | |
365 | if { $foo < [expr $len - 1] } { | |
366 | set str [string range "$string" 0 $foo]; | |
367 | if { [send_gdb "$str"] != "" } { | |
368 | global suppress_flag; | |
369 | ||
370 | if { ! $suppress_flag } { | |
371 | perror "Couldn't send $command to GDB."; | |
372 | } | |
373 | fail "$message"; | |
374 | return $result; | |
375 | } | |
376 | gdb_expect 2 { | |
377 | -re "\[\r\n\]" { } | |
378 | timeout { } | |
379 | } | |
380 | set string [string range "$string" [expr $foo + 1] end]; | |
381 | } else { | |
382 | break; | |
383 | } | |
384 | } | |
385 | if { "$string" != "" } { | |
386 | if { [send_gdb "$string"] != "" } { | |
387 | global suppress_flag; | |
388 | ||
389 | if { ! $suppress_flag } { | |
390 | perror "Couldn't send $command to GDB."; | |
391 | } | |
392 | fail "$message"; | |
393 | return $result; | |
394 | } | |
395 | } | |
396 | } | |
397 | ||
398 | if [info exists timeout] { | |
399 | set tmt $timeout; | |
400 | } else { | |
401 | global timeout; | |
402 | if [info exists timeout] { | |
403 | set tmt $timeout; | |
404 | } else { | |
405 | set tmt 60; | |
406 | } | |
407 | } | |
408 | gdb_expect $tmt { | |
409 | -re "\\*\\*\\* DOSEXIT code.*" { | |
410 | if { $message != "" } { | |
411 | fail "$message"; | |
412 | } | |
413 | gdb_suppress_entire_file "GDB died"; | |
414 | return -1; | |
415 | } | |
416 | -re "Ending remote debugging.*$gdb_prompt$" { | |
417 | if ![isnative] then { | |
418 | warning "Can`t communicate to remote target." | |
419 | } | |
420 | gdb_exit | |
421 | gdb_start | |
422 | set result -1 | |
423 | } | |
424 | -re "\[\r\n\]*($pattern)\[\r\n\]+$gdb_prompt $" { | |
425 | if ![string match "" $message] then { | |
426 | pass "$message" | |
427 | } | |
428 | set result 0 | |
429 | } | |
430 | -re "(${question_string})$" { | |
431 | send_gdb "$response_string\n"; | |
432 | exp_continue; | |
433 | } | |
434 | -re "Undefined command:.*$gdb_prompt" { | |
435 | perror "Undefined command \"$command\"." | |
436 | set result 1 | |
437 | } | |
438 | -re "Ambiguous command.*$gdb_prompt $" { | |
439 | perror "\"$command\" is not a unique command name." | |
440 | set result 1 | |
441 | } | |
442 | -re "Program exited with code \[0-9\]+.*$gdb_prompt $" { | |
443 | if ![string match "" $message] then { | |
444 | set errmsg "$message: the program exited" | |
445 | } else { | |
446 | set errmsg "$command: the program exited" | |
447 | } | |
448 | fail "$errmsg" | |
449 | return -1 | |
450 | } | |
451 | -re "The program is not being run.*$gdb_prompt $" { | |
452 | if ![string match "" $message] then { | |
453 | set errmsg "$message: the program is no longer running" | |
454 | } else { | |
455 | set errmsg "$command: the program is no longer running" | |
456 | } | |
457 | fail "$errmsg" | |
458 | return -1 | |
459 | } | |
460 | -re ".*$gdb_prompt $" { | |
461 | if ![string match "" $message] then { | |
462 | fail "$message" | |
463 | } | |
464 | set result 1 | |
465 | } | |
466 | "<return>" { | |
467 | send_gdb "\n" | |
468 | perror "Window too small." | |
469 | } | |
470 | -re "\\(y or n\\) " { | |
471 | send_gdb "n\n" | |
472 | perror "Got interactive prompt." | |
473 | } | |
474 | eof { | |
475 | perror "Process no longer exists" | |
476 | if { $message != "" } { | |
477 | fail "$message" | |
478 | } | |
479 | return -1 | |
480 | } | |
481 | full_buffer { | |
482 | perror "internal buffer is full." | |
483 | } | |
484 | timeout { | |
485 | if ![string match "" $message] then { | |
486 | fail "$message (timeout)" | |
487 | } | |
488 | set result 1 | |
489 | } | |
490 | } | |
491 | return $result | |
492 | } | |
493 | \f | |
494 | # Test that a command gives an error. For pass or fail, return | |
495 | # a 1 to indicate that more tests can proceed. However a timeout | |
496 | # is a serious error, generates a special fail message, and causes | |
497 | # a 0 to be returned to indicate that more tests are likely to fail | |
498 | # as well. | |
499 | ||
500 | proc test_print_reject { args } { | |
501 | global gdb_prompt | |
502 | global verbose | |
503 | ||
504 | if [llength $args]==2 then { | |
505 | set expectthis [lindex $args 1] | |
506 | } else { | |
507 | set expectthis "should never match this bogus string" | |
508 | } | |
509 | set sendthis [lindex $args 0] | |
510 | if $verbose>2 then { | |
511 | send_user "Sending \"$sendthis\" to gdb\n" | |
512 | send_user "Looking to match \"$expectthis\"\n" | |
513 | } | |
514 | send_gdb "$sendthis\n" | |
515 | #FIXME: Should add timeout as parameter. | |
516 | gdb_expect { | |
517 | -re "A .* in expression.*\\.*$gdb_prompt $" { | |
518 | pass "reject $sendthis" | |
519 | return 1 | |
520 | } | |
521 | -re "Invalid syntax in expression.*$gdb_prompt $" { | |
522 | pass "reject $sendthis" | |
523 | return 1 | |
524 | } | |
525 | -re "Junk after end of expression.*$gdb_prompt $" { | |
526 | pass "reject $sendthis" | |
527 | return 1 | |
528 | } | |
529 | -re "Invalid number.*$gdb_prompt $" { | |
530 | pass "reject $sendthis" | |
531 | return 1 | |
532 | } | |
533 | -re "Invalid character constant.*$gdb_prompt $" { | |
534 | pass "reject $sendthis" | |
535 | return 1 | |
536 | } | |
537 | -re "No symbol table is loaded.*$gdb_prompt $" { | |
538 | pass "reject $sendthis" | |
539 | return 1 | |
540 | } | |
541 | -re "No symbol .* in current context.*$gdb_prompt $" { | |
542 | pass "reject $sendthis" | |
543 | return 1 | |
544 | } | |
545 | -re "$expectthis.*$gdb_prompt $" { | |
546 | pass "reject $sendthis" | |
547 | return 1 | |
548 | } | |
549 | -re ".*$gdb_prompt $" { | |
550 | fail "reject $sendthis" | |
551 | return 1 | |
552 | } | |
553 | default { | |
554 | fail "reject $sendthis (eof or timeout)" | |
555 | return 0 | |
556 | } | |
557 | } | |
558 | } | |
559 | \f | |
560 | # Given an input string, adds backslashes as needed to create a | |
561 | # regexp that will match the string. | |
562 | ||
563 | proc string_to_regexp {str} { | |
564 | set result $str | |
565 | regsub -all {[]*+.|()^$\[]} $str {\\&} result | |
566 | return $result | |
567 | } | |
568 | ||
569 | # Same as gdb_test, but the second parameter is not a regexp, | |
570 | # but a string that must match exactly. | |
571 | ||
572 | proc gdb_test_exact { args } { | |
573 | upvar timeout timeout | |
574 | ||
575 | set command [lindex $args 0] | |
576 | ||
577 | # This applies a special meaning to a null string pattern. Without | |
578 | # this, "$pattern\r\n$gdb_prompt $" will match anything, including error | |
579 | # messages from commands that should have no output except a new | |
580 | # prompt. With this, only results of a null string will match a null | |
581 | # string pattern. | |
582 | ||
583 | set pattern [lindex $args 1] | |
584 | if [string match $pattern ""] { | |
585 | set pattern [string_to_regexp [lindex $args 0]] | |
586 | } else { | |
587 | set pattern [string_to_regexp [lindex $args 1]] | |
588 | } | |
589 | ||
590 | # It is most natural to write the pattern argument with only | |
591 | # embedded \n's, especially if you are trying to avoid Tcl quoting | |
592 | # problems. But gdb_expect really wants to see \r\n in patterns. So | |
593 | # transform the pattern here. First transform \r\n back to \n, in | |
594 | # case some users of gdb_test_exact already do the right thing. | |
595 | regsub -all "\r\n" $pattern "\n" pattern | |
596 | regsub -all "\n" $pattern "\r\n" pattern | |
597 | if [llength $args]==3 then { | |
598 | set message [lindex $args 2] | |
599 | } else { | |
600 | set message $command | |
601 | } | |
602 | ||
603 | return [gdb_test $command $pattern $message] | |
604 | } | |
605 | \f | |
606 | proc gdb_reinitialize_dir { subdir } { | |
607 | global gdb_prompt | |
608 | ||
609 | if [is_remote host] { | |
610 | return ""; | |
611 | } | |
612 | send_gdb "dir\n" | |
613 | gdb_expect 60 { | |
614 | -re "Reinitialize source path to empty.*y or n. " { | |
615 | send_gdb "y\n" | |
616 | gdb_expect 60 { | |
617 | -re "Source directories searched.*$gdb_prompt $" { | |
618 | send_gdb "dir $subdir\n" | |
619 | gdb_expect 60 { | |
620 | -re "Source directories searched.*$gdb_prompt $" { | |
621 | verbose "Dir set to $subdir" | |
622 | } | |
623 | -re "$gdb_prompt $" { | |
624 | perror "Dir \"$subdir\" failed." | |
625 | } | |
626 | } | |
627 | } | |
628 | -re "$gdb_prompt $" { | |
629 | perror "Dir \"$subdir\" failed." | |
630 | } | |
631 | } | |
632 | } | |
633 | -re "$gdb_prompt $" { | |
634 | perror "Dir \"$subdir\" failed." | |
635 | } | |
636 | } | |
637 | } | |
638 | ||
639 | # | |
640 | # gdb_exit -- exit the GDB, killing the target program if necessary | |
641 | # | |
642 | proc default_gdb_exit {} { | |
643 | global GDB | |
644 | global GDBFLAGS | |
645 | global verbose | |
646 | global gdb_spawn_id; | |
647 | ||
648 | gdb_stop_suppressing_tests; | |
649 | ||
650 | if ![info exists gdb_spawn_id] { | |
651 | return; | |
652 | } | |
653 | ||
654 | verbose "Quitting $GDB $GDBFLAGS" | |
655 | ||
656 | if { [is_remote host] && [board_info host exists fileid] } { | |
657 | send_gdb "quit\n"; | |
658 | gdb_expect 10 { | |
659 | -re "y or n" { | |
660 | send_gdb "y\n"; | |
661 | exp_continue; | |
662 | } | |
663 | -re "DOSEXIT code" { } | |
664 | default { } | |
665 | } | |
666 | } | |
667 | ||
668 | if ![is_remote host] { | |
669 | remote_close host; | |
670 | } | |
671 | unset gdb_spawn_id | |
672 | } | |
673 | ||
674 | # | |
675 | # load a file into the debugger. | |
676 | # return a -1 if anything goes wrong. | |
677 | # | |
678 | proc gdb_file_cmd { arg } { | |
679 | global verbose | |
680 | global loadpath | |
681 | global loadfile | |
682 | global GDB | |
683 | global gdb_prompt | |
684 | upvar timeout timeout | |
685 | ||
686 | if [is_remote host] { | |
687 | set arg [remote_download host $arg]; | |
688 | if { $arg == "" } { | |
689 | error "download failed" | |
690 | return -1; | |
691 | } | |
692 | } | |
693 | ||
694 | send_gdb "file $arg\n" | |
695 | gdb_expect 120 { | |
696 | -re "Reading symbols from.*done.*$gdb_prompt $" { | |
697 | verbose "\t\tLoaded $arg into the $GDB" | |
698 | return 0 | |
699 | } | |
700 | -re "has no symbol-table.*$gdb_prompt $" { | |
701 | perror "$arg wasn't compiled with \"-g\"" | |
702 | return -1 | |
703 | } | |
704 | -re "A program is being debugged already.*Kill it.*y or n. $" { | |
705 | send_gdb "y\n" | |
706 | verbose "\t\tKilling previous program being debugged" | |
707 | exp_continue | |
708 | } | |
709 | -re "Load new symbol table from \".*\".*y or n. $" { | |
710 | send_gdb "y\n" | |
711 | gdb_expect 120 { | |
712 | -re "Reading symbols from.*done.*$gdb_prompt $" { | |
713 | verbose "\t\tLoaded $arg with new symbol table into $GDB" | |
714 | return 0 | |
715 | } | |
716 | timeout { | |
717 | perror "(timeout) Couldn't load $arg, other program already loaded." | |
718 | return -1 | |
719 | } | |
720 | } | |
721 | } | |
722 | -re "No such file or directory.*$gdb_prompt $" { | |
723 | perror "($arg) No such file or directory\n" | |
724 | return -1 | |
725 | } | |
726 | -re "$gdb_prompt $" { | |
727 | perror "couldn't load $arg into $GDB." | |
728 | return -1 | |
729 | } | |
730 | timeout { | |
731 | perror "couldn't load $arg into $GDB (timed out)." | |
732 | return -1 | |
733 | } | |
734 | eof { | |
735 | # This is an attempt to detect a core dump, but seems not to | |
736 | # work. Perhaps we need to match .* followed by eof, in which | |
737 | # gdb_expect does not seem to have a way to do that. | |
738 | perror "couldn't load $arg into $GDB (end of file)." | |
739 | return -1 | |
740 | } | |
741 | } | |
742 | } | |
743 | ||
744 | # | |
745 | # start gdb -- start gdb running, default procedure | |
746 | # | |
747 | # When running over NFS, particularly if running many simultaneous | |
748 | # tests on different hosts all using the same server, things can | |
749 | # get really slow. Give gdb at least 3 minutes to start up. | |
750 | # | |
751 | proc default_gdb_start { } { | |
752 | global verbose | |
753 | global GDB | |
754 | global GDBFLAGS | |
755 | global gdb_prompt | |
756 | global timeout | |
757 | global gdb_spawn_id; | |
758 | ||
759 | gdb_stop_suppressing_tests; | |
760 | ||
761 | verbose "Spawning $GDB -nw $GDBFLAGS" | |
762 | ||
763 | if [info exists gdb_spawn_id] { | |
764 | return 0; | |
765 | } | |
766 | ||
767 | if ![is_remote host] { | |
768 | if { [which $GDB] == 0 } then { | |
769 | perror "$GDB does not exist." | |
770 | exit 1 | |
771 | } | |
772 | } | |
773 | set res [remote_spawn host "$GDB -nw $GDBFLAGS [host_info gdb_opts]"]; | |
774 | if { $res < 0 || $res == "" } { | |
775 | perror "Spawning $GDB failed." | |
776 | return 1; | |
777 | } | |
778 | gdb_expect 360 { | |
779 | -re "\[\r\n\]$gdb_prompt $" { | |
780 | verbose "GDB initialized." | |
781 | } | |
782 | -re "$gdb_prompt $" { | |
783 | perror "GDB never initialized." | |
784 | return -1 | |
785 | } | |
786 | timeout { | |
787 | perror "(timeout) GDB never initialized after 10 seconds." | |
788 | remote_close host; | |
789 | return -1 | |
790 | } | |
791 | } | |
792 | set gdb_spawn_id -1; | |
793 | # force the height to "unlimited", so no pagers get used | |
794 | ||
795 | send_gdb "set height 0\n" | |
796 | gdb_expect 10 { | |
797 | -re "$gdb_prompt $" { | |
798 | verbose "Setting height to 0." 2 | |
799 | } | |
800 | timeout { | |
801 | warning "Couldn't set the height to 0" | |
802 | } | |
803 | } | |
804 | # force the width to "unlimited", so no wraparound occurs | |
805 | send_gdb "set width 0\n" | |
806 | gdb_expect 10 { | |
807 | -re "$gdb_prompt $" { | |
808 | verbose "Setting width to 0." 2 | |
809 | } | |
810 | timeout { | |
811 | warning "Couldn't set the width to 0." | |
812 | } | |
813 | } | |
814 | return 0; | |
815 | } | |
816 | ||
817 | # * For crosses, the CHILL runtime doesn't build because it can't find | |
818 | # setjmp.h, stdio.h, etc. | |
819 | # * For AIX (as of 16 Mar 95), (a) there is no language code for | |
820 | # CHILL in output_epilog in gcc/config/rs6000/rs6000.c, (b) collect2 | |
821 | # does not get along with AIX's too-clever linker. | |
822 | # * On Irix5, there is a bug whereby set of bool, etc., don't get | |
823 | # TYPE_LOW_BOUND for the bool right because force_to_range_type doesn't | |
824 | # work with stub types. | |
825 | # Lots of things seem to fail on the PA, and since it's not a supported | |
826 | # chill target at the moment, don't run the chill tests. | |
827 | ||
828 | proc skip_chill_tests {} { | |
829 | if ![info exists do_chill_tests] { | |
830 | return 1; | |
831 | } | |
832 | eval set skip_chill [expr ![isnative] || [istarget "*-*-aix*"] || [istarget "*-*-irix5*"] || [istarget "*-*-irix6*"] || [istarget "alpha-*-osf*"] || [istarget "hppa*-*-*"]] | |
833 | verbose "Skip chill tests is $skip_chill" | |
834 | return $skip_chill | |
835 | } | |
836 | ||
837 | # skip all the tests in the file if you are not on an hppa running hpux target. | |
838 | # and you compiled with gcc | |
839 | proc skip_hp_tests {gcc_used} { | |
840 | # if ![info exists do_hp_tests] { | |
841 | # return 1; | |
842 | # } | |
843 | eval set skip_hp [expr ![isnative] || ![istarget "hppa*-*-hpux*"] || $gcc_used!=0 ] | |
844 | verbose "Skip hp tests is $skip_hp" | |
845 | return $skip_hp | |
846 | } | |
847 | ||
848 | proc get_compiler_info {binfile args} { | |
849 | # Create and source the file that provides information about the compiler | |
850 | # used to compile the test case. | |
851 | # Compiler_type can be null or c++. If null we assume c. | |
852 | global srcdir | |
853 | global subdir | |
854 | # These two come from compiler.c. | |
855 | global signed_keyword_not_used | |
856 | global gcc_compiled | |
857 | ||
858 | if {![istarget "hppa*-*-hpux*"]} { | |
859 | if { [llength $args] > 0 } { | |
860 | if {$args == "c++"} { | |
861 | if { [gdb_compile "${srcdir}/${subdir}/compiler.cc" "${binfile}.ci" preprocess {}] != "" } { | |
862 | perror "Couldn't make ${binfile}.ci file" | |
863 | return 1; | |
864 | } | |
865 | } | |
866 | } else { | |
867 | if { [gdb_compile "${srcdir}/${subdir}/compiler.c" "${binfile}.ci" preprocess {}] != "" } { | |
868 | perror "Couldn't make ${binfile}.ci file" | |
869 | return 1; | |
870 | } | |
871 | } | |
872 | } else { | |
873 | if { [llength $args] > 0 } { | |
874 | if {$args == "c++"} { | |
875 | if { [eval gdb_preprocess \ | |
876 | [list "${srcdir}/${subdir}/compiler.cc" "${binfile}.ci"] \ | |
877 | $args] != "" } { | |
878 | perror "Couldn't make ${binfile}.ci file" | |
879 | return 1; | |
880 | } | |
881 | } | |
882 | } else { | |
883 | if { [eval gdb_preprocess \ | |
884 | [list "${srcdir}/${subdir}/compiler.c" "${binfile}.ci"] \ | |
885 | $args] != "" } { | |
886 | perror "Couldn't make ${binfile}.ci file" | |
887 | return 1; | |
888 | } | |
889 | } | |
890 | } | |
891 | ||
892 | source ${binfile}.ci | |
893 | return 0; | |
894 | } | |
895 | ||
896 | proc gdb_preprocess {source dest args} { | |
897 | global CC_FOR_TARGET | |
898 | global CXX_FOR_TARGET | |
899 | ||
900 | if { [llength $args] == 0 } { | |
901 | set which_compiler "c" | |
902 | } else { | |
903 | if { $args =="c++" } { | |
904 | set which_compiler "c++" | |
905 | } else { | |
906 | perror "Unknown compiler type supplied to gdb_preprocess" | |
907 | return 1; | |
908 | } | |
909 | } | |
910 | ||
911 | if [info exists CC_FOR_TARGET] { | |
912 | if { $which_compiler == "c"} { | |
913 | set compiler $CC_FOR_TARGET; | |
914 | } | |
915 | } | |
916 | ||
917 | if [info exists CXX_FOR_TARGET] { | |
918 | if { $which_compiler == "c++"} { | |
919 | set compiler $CXX_FOR_TARGET; | |
920 | } | |
921 | } | |
922 | ||
923 | if { ![info exists compiler] } { | |
924 | if { $which_compiler == "c" } { | |
925 | if {[info exists CC]} { | |
926 | set compiler $CC; | |
927 | } | |
928 | } | |
929 | if { $which_compiler == "c++" } { | |
930 | if {[info exists CXX]} { | |
931 | set compiler $CXX; | |
932 | } | |
933 | } | |
934 | if {![info exists compiler]} { | |
935 | set compiler [board_info [target_info name] compiler]; | |
936 | if { $compiler == "" } { | |
937 | puts "default_target_compile: No compiler to compile with"; | |
938 | return "default_target_compile: No compiler to compile with"; | |
939 | } | |
940 | } | |
941 | } | |
942 | ||
943 | set cmdline "$compiler -E $source > $dest" | |
944 | ||
945 | verbose "Invoking $compiler -E $source > $dest" | |
946 | verbose -log "Executing on local host: $cmdline" 2 | |
947 | set status [catch "exec ${cmdline}" exec_output] | |
948 | ||
949 | set result [prune_warnings $exec_output] | |
950 | regsub "\[\r\n\]*$" "$result" "" result; | |
951 | regsub "^\[\r\n\]*" "$result" "" result; | |
952 | if { $result != "" } { | |
953 | clone_output "gdb compile failed, $result" | |
954 | } | |
955 | return $result; | |
956 | } | |
957 | ||
958 | proc gdb_compile {source dest type options} { | |
959 | global GDB_TESTCASE_OPTIONS; | |
960 | ||
961 | if [target_info exists gdb_stub] { | |
962 | set options2 { "additional_flags=-Dusestubs" } | |
963 | lappend options "libs=[target_info gdb_stub]"; | |
964 | set options [concat $options2 $options] | |
965 | } | |
966 | if [target_info exists is_vxworks] { | |
967 | set options2 { "additional_flags=-Dvxworks" } | |
968 | lappend options "libs=[target_info gdb_stub]"; | |
969 | set options [concat $options2 $options] | |
970 | } | |
971 | if [info exists GDB_TESTCASE_OPTIONS] { | |
972 | lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"; | |
973 | } | |
974 | verbose "options are $options" | |
975 | verbose "source is $source $dest $type $options" | |
976 | ||
977 | set result [target_compile $source $dest $type $options]; | |
978 | regsub "\[\r\n\]*$" "$result" "" result; | |
979 | regsub "^\[\r\n\]*" "$result" "" result; | |
980 | if { $result != "" } { | |
981 | clone_output "gdb compile failed, $result" | |
982 | } | |
983 | return $result; | |
984 | } | |
985 | ||
986 | proc send_gdb { string } { | |
987 | global suppress_flag; | |
988 | if { $suppress_flag } { | |
989 | return "suppressed"; | |
990 | } | |
991 | return [remote_send host "$string"]; | |
992 | } | |
993 | ||
994 | # | |
995 | # | |
996 | ||
997 | proc gdb_expect { args } { | |
998 | if { [llength $args] == 2 && [lindex $args 0] != "-re" } { | |
999 | set gtimeout [lindex $args 0]; | |
1000 | set expcode [list [lindex $args 1]]; | |
1001 | } else { | |
1002 | upvar timeout timeout; | |
1003 | ||
1004 | set expcode $args; | |
1005 | if [target_info exists gdb,timeout] { | |
1006 | if [info exists timeout] { | |
1007 | if { $timeout < [target_info gdb,timeout] } { | |
1008 | set gtimeout [target_info gdb,timeout]; | |
1009 | } else { | |
1010 | set gtimeout $timeout; | |
1011 | } | |
1012 | } else { | |
1013 | set gtimeout [target_info gdb,timeout]; | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | if ![info exists gtimeout] { | |
1018 | global timeout; | |
1019 | if [info exists timeout] { | |
1020 | set gtimeout $timeout; | |
1021 | } else { | |
1022 | # Eeeeew. | |
1023 | set gtimeout 60; | |
1024 | } | |
1025 | } | |
1026 | } | |
1027 | global suppress_flag; | |
1028 | global remote_suppress_flag; | |
1029 | if [info exists remote_suppress_flag] { | |
1030 | set old_val $remote_suppress_flag; | |
1031 | } | |
1032 | if [info exists suppress_flag] { | |
1033 | if { $suppress_flag } { | |
1034 | set remote_suppress_flag 1; | |
1035 | } | |
1036 | } | |
1037 | set code [catch {uplevel remote_expect host $gtimeout $expcode} string]; | |
1038 | if [info exists old_val] { | |
1039 | set remote_suppress_flag $old_val; | |
1040 | } else { | |
1041 | if [info exists remote_suppress_flag] { | |
1042 | unset remote_suppress_flag; | |
1043 | } | |
1044 | } | |
1045 | ||
1046 | if {$code == 1} { | |
1047 | global errorInfo errorCode; | |
1048 | ||
1049 | return -code error -errorinfo $errorInfo -errorcode $errorCode $string | |
1050 | } elseif {$code == 2} { | |
1051 | return -code return $string | |
1052 | } elseif {$code == 3} { | |
1053 | return | |
1054 | } elseif {$code > 4} { | |
1055 | return -code $code $string | |
1056 | } | |
1057 | } | |
1058 | ||
1059 | proc gdb_suppress_entire_file { reason } { | |
1060 | global suppress_flag; | |
1061 | ||
1062 | warning "$reason\n"; | |
1063 | set suppress_flag -1; | |
1064 | } | |
1065 | ||
1066 | # | |
1067 | # Set suppress_flag, which will cause all subsequent calls to send_gdb and | |
1068 | # gdb_expect to fail immediately (until the next call to | |
1069 | # gdb_stop_suppressing_tests). | |
1070 | # | |
1071 | proc gdb_suppress_tests { args } { | |
1072 | global suppress_flag; | |
1073 | ||
1074 | return; # fnf - disable pending review of results where | |
1075 | # testsuite ran better without this | |
1076 | incr suppress_flag; | |
1077 | ||
1078 | if { $suppress_flag == 1 } { | |
1079 | if { [llength $args] > 0 } { | |
1080 | warning "[lindex $args 0]\n"; | |
1081 | } else { | |
1082 | warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n"; | |
1083 | } | |
1084 | } | |
1085 | } | |
1086 | ||
1087 | # | |
1088 | # Clear suppress_flag. | |
1089 | # | |
1090 | proc gdb_stop_suppressing_tests { } { | |
1091 | global suppress_flag; | |
1092 | ||
1093 | if [info exists suppress_flag] { | |
1094 | if { $suppress_flag > 0 } { | |
1095 | set suppress_flag 0; | |
1096 | clone_output "Tests restarted.\n"; | |
1097 | } | |
1098 | } else { | |
1099 | set suppress_flag 0; | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | proc gdb_clear_suppressed { } { | |
1104 | global suppress_flag; | |
1105 | ||
1106 | set suppress_flag 0; | |
1107 | } | |
1108 | ||
1109 | proc gdb_start { } { | |
1110 | default_gdb_start | |
1111 | } | |
1112 | ||
1113 | proc gdb_exit { } { | |
1114 | catch default_gdb_exit | |
1115 | } | |
1116 | ||
1117 | # | |
1118 | # gdb_load -- load a file into the debugger. | |
1119 | # return a -1 if anything goes wrong. | |
1120 | # | |
1121 | proc gdb_load { arg } { | |
1122 | return [gdb_file_cmd $arg] | |
1123 | } | |
1124 | ||
1125 | proc gdb_continue { function } { | |
1126 | global decimal | |
1127 | ||
1128 | return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]; | |
1129 | } | |
1130 | ||
1131 | proc default_gdb_init { args } { | |
1132 | gdb_clear_suppressed; | |
1133 | ||
1134 | # Uh, this is lame. Really, really, really lame. But there's this *one* | |
1135 | # testcase that will fail in random places if we don't increase this. | |
1136 | match_max -d 20000 | |
1137 | ||
1138 | # We want to add the name of the TCL testcase to the PASS/FAIL messages. | |
1139 | if { [llength $args] > 0 } { | |
1140 | global pf_prefix | |
1141 | ||
1142 | set file [lindex $args 0]; | |
1143 | ||
1144 | set pf_prefix "[file tail [file dirname $file]]/[file tail $file]:"; | |
1145 | } | |
1146 | global gdb_prompt; | |
1147 | if [target_info exists gdb_prompt] { | |
1148 | set gdb_prompt [target_info gdb_prompt]; | |
1149 | } else { | |
1150 | set gdb_prompt "\\(gdb\\)" | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | proc gdb_init { args } { | |
1155 | return [eval default_gdb_init $args]; | |
1156 | } | |
1157 | ||
1158 | proc gdb_finish { } { | |
1159 | gdb_exit; | |
1160 | } | |
1161 | ||
1162 | global debug_format | |
1163 | ||
1164 | # Run the gdb command "info source" and extract the debugging format | |
1165 | # information from the output and save it in debug_format. | |
1166 | ||
1167 | proc get_debug_format { } { | |
1168 | global gdb_prompt | |
1169 | global verbose | |
1170 | global expect_out | |
1171 | global debug_format | |
1172 | ||
1173 | set debug_format "unknown" | |
1174 | send_gdb "info source\n" | |
1175 | gdb_expect 10 { | |
1176 | -re "Compiled with (.*) debugging format.\r\n$gdb_prompt $" { | |
1177 | set debug_format $expect_out(1,string) | |
1178 | verbose "debug format is $debug_format" | |
1179 | return 1; | |
1180 | } | |
1181 | -re "No current source file.\r\n$gdb_prompt $" { | |
1182 | perror "get_debug_format used when no current source file" | |
1183 | return 0; | |
1184 | } | |
1185 | -re "$gdb_prompt $" { | |
1186 | warning "couldn't check debug format (no valid response)." | |
1187 | return 1; | |
1188 | } | |
1189 | timeout { | |
1190 | warning "couldn't check debug format (timed out)." | |
1191 | return 1; | |
1192 | } | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | # Like setup_xfail, but takes the name of a debug format (DWARF 1, | |
1197 | # COFF, stabs, etc). If that format matches the format that the | |
1198 | # current test was compiled with, then the next test is expected to | |
1199 | # fail for any target. Returns 1 if the next test or set of tests is | |
1200 | # expected to fail, 0 otherwise (or if it is unknown). Must have | |
1201 | # previously called get_debug_format. | |
1202 | ||
1203 | proc setup_xfail_format { format } { | |
1204 | global debug_format | |
1205 | ||
1206 | if [string match $debug_format $format] then { | |
1207 | setup_xfail "*-*-*" | |
1208 | return 1; | |
1209 | } | |
1210 | return 0 | |
1211 | } | |
1212 | ||
1213 | proc gdb_step_for_stub { } { | |
1214 | global gdb_prompt; | |
1215 | ||
1216 | if ![target_info exists gdb,use_breakpoint_for_stub] { | |
1217 | if [target_info exists gdb_stub_step_command] { | |
1218 | set command [target_info gdb_stub_step_command]; | |
1219 | } else { | |
1220 | set command "step"; | |
1221 | } | |
1222 | send_gdb "${command}\n"; | |
1223 | set tries 0; | |
1224 | gdb_expect 60 { | |
1225 | -re "(main.* at |.*in .*start).*$gdb_prompt" { | |
1226 | return; | |
1227 | } | |
1228 | -re ".*$gdb_prompt" { | |
1229 | incr tries; | |
1230 | if { $tries == 5 } { | |
1231 | fail "stepping out of breakpoint function"; | |
1232 | return; | |
1233 | } | |
1234 | send_gdb "${command}\n"; | |
1235 | exp_continue; | |
1236 | } | |
1237 | default { | |
1238 | fail "stepping out of breakpoint function"; | |
1239 | return; | |
1240 | } | |
1241 | } | |
1242 | } | |
1243 | send_gdb "where\n"; | |
1244 | gdb_expect { | |
1245 | -re "main\[^\r\n\]*at \(\[^:]+\):\(\[0-9\]+\)" { | |
1246 | set file $expect_out(1,string); | |
1247 | set linenum [expr $expect_out(2,string) + 1]; | |
1248 | set breakplace "${file}:${linenum}"; | |
1249 | } | |
1250 | default {} | |
1251 | } | |
1252 | send_gdb "break ${breakplace}\n"; | |
1253 | gdb_expect 60 { | |
1254 | -re "Breakpoint (\[0-9\]+) at.*$gdb_prompt" { | |
1255 | set breakpoint $expect_out(1,string); | |
1256 | } | |
1257 | -re "Breakpoint (\[0-9\]+): file.*$gdb_prompt" { | |
1258 | set breakpoint $expect_out(1,string); | |
1259 | } | |
1260 | default {} | |
1261 | } | |
1262 | send_gdb "continue\n"; | |
1263 | gdb_expect 60 { | |
1264 | -re "Breakpoint ${breakpoint},.*$gdb_prompt" { | |
1265 | gdb_test "delete $breakpoint" ".*" ""; | |
1266 | return; | |
1267 | } | |
1268 | default {} | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | ### gdb_get_line_number TEXT [FILE] | |
1273 | ### | |
1274 | ### Search the source file FILE, and return the line number of a line | |
1275 | ### containing TEXT. Use this function instead of hard-coding line | |
1276 | ### numbers into your test script. | |
1277 | ### | |
1278 | ### Specifically, this function uses GDB's "search" command to search | |
1279 | ### FILE for the first line containing TEXT, and returns its line | |
1280 | ### number. Thus, FILE must be a source file, compiled into the | |
1281 | ### executable you are running. If omitted, FILE defaults to the | |
1282 | ### value of the global variable `srcfile'; most test scripts set | |
1283 | ### `srcfile' appropriately at the top anyway. | |
1284 | ### | |
1285 | ### Use this function to keep your test scripts independent of the | |
1286 | ### exact line numbering of the source file. Don't write: | |
1287 | ### | |
1288 | ### send_gdb "break 20" | |
1289 | ### | |
1290 | ### This means that if anyone ever edits your test's source file, | |
1291 | ### your test could break. Instead, put a comment like this on the | |
1292 | ### source file line you want to break at: | |
1293 | ### | |
1294 | ### /* breakpoint spot: frotz.exp: test name */ | |
1295 | ### | |
1296 | ### and then write, in your test script (which we assume is named | |
1297 | ### frotz.exp): | |
1298 | ### | |
1299 | ### send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n" | |
1300 | ### | |
1301 | ### (Yes, Tcl knows how to handle the nested quotes and brackets. | |
1302 | ### Try this: | |
1303 | ### $ tclsh | |
1304 | ### % puts "foo [lindex "bar baz" 1]" | |
1305 | ### foo baz | |
1306 | ### % | |
1307 | ### Tcl is quite clever, for a little stringy language.) | |
1308 | ||
1309 | proc gdb_get_line_number {text {file /omitted/}} { | |
1310 | global gdb_prompt; | |
1311 | global srcfile; | |
1312 | ||
1313 | if {! [string compare $file /omitted/]} { | |
1314 | set file $srcfile | |
1315 | } | |
1316 | ||
1317 | set result -1; | |
1318 | gdb_test "list ${file}:1,1" ".*" "" | |
1319 | send_gdb "search ${text}\n" | |
1320 | gdb_expect { | |
1321 | -re "\[\r\n\]+(\[0-9\]+)\[ \t\].*${text}.*$gdb_prompt $" { | |
1322 | set result $expect_out(1,string) | |
1323 | } | |
1324 | -re ".*$gdb_prompt $" { | |
1325 | fail "find line number containing \"${text}\"" | |
1326 | } | |
1327 | timeout { | |
1328 | fail "find line number containing \"${text}\" (timeout)" | |
1329 | } | |
1330 | } | |
1331 | return $result; | |
1332 | } | |
1333 | ||
1334 |