gdb/testsuite/gdb.base/break.exp

   1 #   Copyright 1988, 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000
   3 #   Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 # Please email any bugs, comments, and/or additions to this file to:
  20 # bug-gdb@prep.ai.mit.edu
  21
  22 # This file was written by Rob Savoye. (rob@cygnus.com)
  23
  24 if $tracelevel then {
  25     strace $tracelevel
  26 }
  27
  28
  29 #
  30 # test running programs
  31 #
  32 set prms_id 0
  33 set bug_id 0
  34
  35 set testfile "break"
  36 set srcfile ${testfile}.c
  37 set binfile ${objdir}/${subdir}/${testfile}
  38
  39 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
  40     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  41 }
  42
  43 if [get_compiler_info ${binfile}] {
  44     return -1
  45 }
  46
  47 gdb_exit
  48 gdb_start
  49 gdb_reinitialize_dir $srcdir/$subdir
  50 gdb_load ${binfile}
  51
  52 if [target_info exists gdb_stub] {
  53     gdb_step_for_stub;
  54 }
  55 #
  56 # test simple breakpoint setting commands
  57 #
  58
  59 # Test deleting all breakpoints when there are none installed,
  60 # GDB should not prompt for confirmation.
  61 # Note that gdb-init.exp provides a "delete_breakpoints" proc
  62 # for general use elsewhere.
  63
  64 send_gdb "delete breakpoints\n"
  65 gdb_expect {
  66      -re "Delete all breakpoints.*$" {
  67             send_gdb "y\n"
  68             gdb_expect {
  69                 -re "$gdb_prompt $" {
  70                     fail "Delete all breakpoints when none (unexpected prompt)"
  71                 }
  72                 timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
  73             }
  74         }
  75      -re ".*$gdb_prompt $"       { pass "Delete all breakpoints when none" }
  76     timeout                 { fail "Delete all breakpoints when none (timeout)" }
  77 }
  78
  79 #
  80 # test break at function
  81 #
  82 gdb_test "break main" \
  83     "Breakpoint.*at.* file .*$srcfile, line.*" \
  84     "breakpoint function"
  85
  86 #
  87 # test break at function in file
  88 #
  89 gdb_test "break $srcfile:factorial" \
  90     "Breakpoint.*at.* file .*$srcfile, line.*" \
  91     "breakpoint function in file"
  92
  93 #
  94 # test break at line number
  95 #
  96 # Note that the default source file is the last one whose source text
  97 # was printed.  For native debugging, before we've executed the
  98 # program, this is the file containing main, but for remote debugging,
  99 # it's wherever the processor was stopped when we connected to the
 100 # board.  So, to be sure, we do a list command.
 101 #
 102 gdb_test "list main" \
 103     ".*main \\(argc, argv, envp\\).*" \
 104     "use `list' to establish default source file"
 105 gdb_test "break 79" \
 106     "Breakpoint.*at.* file .*$srcfile, line 79\\." \
 107     "breakpoint line number"
 108
 109 #
 110 # test duplicate breakpoint
 111 #
 112 gdb_test "break 79" \
 113     "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line 79\\." \
 114     "breakpoint duplicate"
 115
 116 #
 117 # test break at line number in file
 118 #
 119 gdb_test "break $srcfile:85" \
 120     "Breakpoint.*at.* file .*$srcfile, line 85\\." \
 121     "breakpoint line number in file"
 122
 123
 124 #
 125 # check to see what breakpoints are set
 126 #
 127 if [target_info exists gdb_stub] {
 128     set main_line 72
 129 } else {
 130     set main_line 75
 131 }
 132
 133 if {$hp_aCC_compiler} {
 134     set proto "\\(int\\)"
 135 } else {
 136     set proto ""
 137 }
 138 gdb_test "info break" \
 139     "Num Type\[ \]+Disp Enb Address\[ \]+What.*
 140 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 141 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:96.*
 142 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:79.*
 143 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:79.*
 144 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:85" \
 145     "breakpoint info"
 146
 147
 148 # FIXME: The rest of this test doesn't work with anything that can't
 149 # handle arguments.
 150 # Huh? There doesn't *appear* to be anything that passes arguments
 151 # below.
 152 if [istarget "mips-idt-*"] then {
 153     return
 154 }
 155
 156 #
 157 # run until the breakpoint at main is hit. For non-stubs-using targets.
 158 #
 159 if ![target_info exists use_gdb_stub] {
 160   if [istarget "*-*-vxworks*"] then {
 161     send_gdb "run vxmain \"2\"\n"
 162     set timeout 120
 163     verbose "Timeout is now $timeout seconds" 2
 164   } else {
 165         send_gdb "run\n"
 166   }
 167   gdb_expect {
 168     -re "The program .* has been started already.*y or n. $" {
 169         send_gdb "y\n"
 170         exp_continue
 171     }
 172     -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:75.*75\[\t \]+if .argc.* \{.*$gdb_prompt $"\
 173                             { pass "run until function breakpoint" }
 174     -re ".*$gdb_prompt $"       { fail "run until function breakpoint" }
 175     timeout                 { fail "run until function breakpoint (timeout)" }
 176   }
 177 } else {
 178     if ![target_info exists gdb_stub] {
 179         gdb_test continue ".*Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:75.*75\[\t \]+if .argc.*\{.*" "stub continue"
 180     }
 181 }
 182
 183 #
 184 # run until the breakpoint at a line number
 185 #
 186 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:79.*79\[\t \]+printf.*factorial.*" \
 187                         "run until breakpoint set at a line number"
 188
 189 #
 190 # Run until the breakpoint set in a function in a file
 191 #
 192 for {set i 6} {$i >= 1} {incr i -1} {
 193         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:96.*96\[\t \]+.*if .value > 1. \{.*" \
 194                         "run until file:function($i) breakpoint"
 195 }
 196
 197 #
 198 # run until the file:function breakpoint at a line number in a file
 199 #
 200 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:85.*85\[\t \]+argc = \\(argc == 12345\\);.*" \
 201                 "run until file:linenum breakpoint"
 202
 203 # Test break at offset +1
 204
 205 gdb_test "break +1" \
 206     "Breakpoint.*at.* file .*$srcfile, line 86\\." \
 207     "breakpoint offset +1"
 208
 209 # Check to see if breakpoint is hit when stepped onto
 210
 211 gdb_test "step" \
 212     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:86.*86\[\t \]+return argc;" \
 213     "step onto breakpoint"
 214
 215 #
 216 # delete all breakpoints so we can start over, course this can be a test too
 217 #
 218 delete_breakpoints
 219
 220 #
 221 # test temporary breakpoint at function
 222 #
 223
 224 gdb_test "tbreak main" "Breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 225
 226 #
 227 # test break at function in file
 228 #
 229
 230 gdb_test "tbreak $srcfile:factorial" "Breakpoint.*at.* file .*$srcfile, line.*" \
 231         "Temporary breakpoint function in file"
 232
 233 #
 234 # test break at line number
 235 #
 236 send_gdb "tbreak 79\n"
 237 gdb_expect {
 238     -re "Breakpoint.*at.* file .*$srcfile, line 79.*$gdb_prompt $" { pass "Temporary breakpoint line number #1" }
 239         -re ".*$gdb_prompt $"   { pass "Temporary breakpoint line number #1" }
 240         timeout     { fail "breakpoint line number #1 (timeout)" }
 241 }
 242
 243 gdb_test "tbreak 75" "Breakpoint.*at.* file .*$srcfile, line 75.*" "Temporary breakpoint line number #2"
 244
 245 #
 246 # test break at line number in file
 247 #
 248 send_gdb "tbreak $srcfile:85\n"
 249 gdb_expect {
 250     -re "Breakpoint.*at.* file .*$srcfile, line 85.*$gdb_prompt $" { pass "Temporary breakpoint line number in file #1" }
 251         -re ".*$gdb_prompt $"   { pass "Temporary breakpoint line number in file #1" }
 252         timeout     { fail "Temporary breakpoint line number in file #1 (timeout)" }
 253 }
 254
 255 gdb_test  "tbreak $srcfile:81" "Breakpoint.*at.* file .*$srcfile, line 81.*" "Temporary breakpoint line number in file #2"
 256
 257 #
 258 # check to see what breakpoints are set (temporary this time)
 259 #
 260 gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
 261 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 262 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:96.*\[\r\n\]
 263 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:79.*\[\r\n\]
 264 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:75.*\[\r\n\]
 265 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:85.*\[\r\n\]
 266 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:81.*" \
 267     "Temporary breakpoint info"
 268
 269
 270 #***********
 271
 272 # Verify that catchpoints for fork, vfork and exec don't trigger
 273 # inappropriately.  (There are no calls to those system functions
 274 # in this test program.)
 275 #
 276 if ![runto_main] then { fail "break tests suppressed" }
 277
 278 send_gdb "catch\n"
 279 gdb_expect {
 280   -re "Catch requires an event name.*$gdb_prompt $"\
 281           {pass "catch requires an event name"}
 282   -re "$gdb_prompt $"\
 283           {fail "catch requires an event name"}
 284   timeout {fail "(timeout) catch requires an event name"}
 285 }
 286
 287
 288 set name "set catch fork, never expected to trigger"
 289 send_gdb "catch fork\n"
 290 gdb_expect {
 291   -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $"
 292           {pass $name}
 293   -re "Catch of fork not yet implemented.*$gdb_prompt $"
 294           {pass $name}
 295   -re "$gdb_prompt $"
 296           {fail $name}
 297   timeout {fail "(timeout) $name"}
 298 }
 299
 300
 301 set name "set catch vfork, never expected to trigger"
 302 send_gdb "catch vfork\n"
 303
 304 # If we are on HP-UX 10.20, we expect an error message to be
 305 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 306 # because on HP-UX 10.20, we cannot catch vfork events.
 307
 308 if [istarget "hppa*-hp-hpux10.20"] then {
 309     gdb_expect {
 310         -re "Catch of vfork events not supported on HP-UX 10.20..*$gdb_prompt $"
 311                 {pass $name}
 312         -re "$gdb_prompt $"
 313                 {fail $name}
 314         timeout {fail "(timeout) $name"}
 315     }
 316 } else {
 317     gdb_expect {
 318         -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $"
 319                 {pass $name}
 320         -re "Catch of vfork not yet implemented.*$gdb_prompt $"
 321                 {pass $name}
 322         -re "$gdb_prompt $"
 323                 {fail $name}
 324         timeout {fail "(timeout) $name"}
 325     }
 326 }
 327
 328 set name "set catch exec, never expected to trigger"
 329 send_gdb "catch exec\n"
 330 gdb_expect {
 331   -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $"
 332           {pass $name}
 333   -re "Catch of exec not yet implemented.*$gdb_prompt $"
 334           {pass $name}
 335   -re "$gdb_prompt $" {fail $name}
 336   timeout {fail "(timeout) $name"}
 337 }
 338
 339 # Verify that "until <location>" works.  (This is really just syntactic
 340 # sugar for "tbreak <location>; continue".)
 341 #
 342 send_gdb "until 79\n"
 343 gdb_expect {
 344   -re "main .* at .*:79.*$gdb_prompt $"\
 345           {pass "until 79"}
 346   -re "$gdb_prompt $"\
 347           {fail "until 79"}
 348   timeout {fail "(timeout) until 79"}
 349 }
 350
 351 # Verify that a malformed "until" is gracefully caught.
 352 #
 353 send_gdb "until 80 then stop\n"
 354 gdb_expect {
 355   -re "Junk at end of arguments..*$gdb_prompt $"\
 356           {pass "malformed until"}
 357   -re "$gdb_prompt $"\
 358           {fail "malformed until"}
 359   timeout {fail "(timeout) malformed until"}
 360 }
 361
 362 # Verify that GDB responds gracefully when asked to set a breakpoint
 363 # on a nonexistent source line.
 364 #
 365 send_gdb "break 999\n"
 366 gdb_expect {
 367   -re "No line 999 in file .*$gdb_prompt $"\
 368           {pass "break on non-existent source line"}
 369   -re "$gdb_prompt $"\
 370           {fail "break on non-existent source line"}
 371   timeout {fail "(timeout) break on non-existent source line"}
 372 }
 373
 374 # Verify that GDB allows one to just say "break", which is treated
 375 # as the "default" breakpoint.  Note that GDB gets cute when printing
 376 # the informational message about other breakpoints at the same
 377 # location.  We'll hit that bird with this stone too.
 378 #
 379 send_gdb "break\n"
 380 gdb_expect {
 381   -re "Breakpoint \[0-9\]*.*$gdb_prompt $"\
 382           {pass "break on default location, 1st time"}
 383   -re "$gdb_prompt $"\
 384           {fail "break on default location, 1st time"}
 385   timeout {fail "(timeout) break on default location, 1st time"}
 386 }
 387
 388 send_gdb "break\n"
 389 gdb_expect {
 390   -re "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 391           {pass "break on default location, 2nd time"}
 392   -re "$gdb_prompt $"\
 393           {fail "break on default location, 2nd time"}
 394   timeout {fail "(timeout) break on default location, 2nd time"}
 395 }
 396
 397 send_gdb "break\n"
 398 gdb_expect {
 399   -re "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 400           {pass "break on default location, 3rd time"}
 401   -re "$gdb_prompt $"\
 402           {fail "break on default location, 3rd time"}
 403   timeout {fail "(timeout) break on default location, 3rd time"}
 404 }
 405
 406 send_gdb "break\n"
 407 gdb_expect {
 408   -re "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 409           {pass "break on default location, 4th time"}
 410   -re "$gdb_prompt $"\
 411           {fail "break on default location, 4th time"}
 412   timeout {fail "(timeout) break on default location, 4th time"}
 413 }
 414
 415 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 416 # "silent" about its triggering.
 417 #
 418 if ![runto_main] then { fail "break tests suppressed" }
 419
 420 send_gdb "break 79\n"
 421 gdb_expect {
 422   -re "Breakpoint (\[0-9\]*) at .*, line 79.*$gdb_prompt $"\
 423           {pass "set to-be-silent break 79"}
 424   -re "$gdb_prompt $"\
 425           {fail "set to-be-silent break 79"}
 426   timeout {fail "(timeout) set to-be-silent break 79"}
 427 }
 428
 429 send_gdb "commands $expect_out(1,string)\n"
 430 send_gdb "silent\n"
 431 send_gdb "end\n"
 432 gdb_expect {
 433   -re ".*$gdb_prompt $"\
 434           {pass "set silent break 79"}
 435   timeout {fail "(timeout) set silent break 79"}
 436 }
 437
 438 send_gdb "info break $expect_out(1,string)\n"
 439 gdb_expect {
 440   -re "\[0-9\]*\[ \t\]*breakpoint.*:79\r\n\[ \t\]*silent.*$gdb_prompt $"\
 441           {pass "info silent break 79"}
 442   -re "$gdb_prompt $"\
 443           {fail "info silent break 79"}
 444   timeout {fail "(timeout) info silent break 79"}
 445 }
 446 send_gdb "continue\n"
 447 gdb_expect {
 448   -re "Continuing.\r\n$gdb_prompt $"\
 449           {pass "hit silent break 79"}
 450   -re "$gdb_prompt $"\
 451           {fail "hit silent break 79"}
 452   timeout {fail "(timeout) hit silent break 79"}
 453 }
 454 send_gdb "bt\n"
 455 gdb_expect {
 456   -re "#0  main .* at .*:79.*$gdb_prompt $"\
 457           {pass "stopped for silent break 79"}
 458   -re "$gdb_prompt $"\
 459           {fail "stopped for silent break 79"}
 460   timeout {fail "(timeout) stopped for silent break 79"}
 461 }
 462
 463 # Verify that GDB can at least parse a breakpoint with the
 464 # "thread" keyword.  (We won't attempt to test here that a
 465 # thread-specific breakpoint really triggers appropriately.
 466 # The gdb.threads subdirectory contains tests for that.)
 467 #
 468 send_gdb "break 80 thread 999\n"
 469 gdb_expect {
 470   -re "Unknown thread 999.*$gdb_prompt $"\
 471           {pass "thread-specific breakpoint on non-existent thread disallowed"}
 472   -re "$gdb_prompt $"\
 473           {fail "thread-specific breakpoint on non-existent thread disallowed"}
 474   timeout {fail "(timeout) thread-specific breakpoint on non-existent thread disallowed"}
 475 }
 476 send_gdb "break 80 thread foo\n"
 477 gdb_expect {
 478   -re "Junk after thread keyword..*$gdb_prompt $"\
 479           {pass "thread-specific breakpoint on bogus thread ID disallowed"}
 480   -re "$gdb_prompt $"\
 481           {fail "thread-specific breakpoint on bogus thread ID disallowed"}
 482   timeout {fail "(timeout) thread-specific breakpoint on bogus thread ID disallowed"}
 483 }
 484
 485 # Verify that GDB responds gracefully to a breakpoint command with
 486 # trailing garbage.
 487 #
 488 send_gdb "break 80 foo\n"
 489 gdb_expect {
 490   -re "Junk at end of arguments..*$gdb_prompt $"\
 491           {pass "breakpoint with trailing garbage disallowed"}
 492   -re "$gdb_prompt $"\
 493           {fail "breakpoint with trailing garbage disallowed"}
 494   timeout {fail "(timeout) breakpoint with trailing garbage disallowed"}
 495 }
 496
 497 # Verify that GDB responds gracefully to a "clear" command that has
 498 # no matching breakpoint.  (First, get us off the current source line,
 499 # which we know has a breakpoint.)
 500 #
 501 send_gdb "next\n"
 502 gdb_expect {
 503   -re ".*$gdb_prompt $"\
 504           {pass "step over breakpoint"}
 505   timeout {fail "(timeout) step over breakpoint"}
 506 }
 507 send_gdb "clear 81\n"
 508 gdb_expect {
 509   -re "No breakpoint at 81..*$gdb_prompt $"\
 510           {pass "clear line has no breakpoint disallowed"}
 511   -re "$gdb_prompt $"\
 512           {fail "clear line has no breakpoint disallowed"}
 513   timeout {fail "(timeout) clear line has no breakpoint disallowed"}
 514 }
 515 send_gdb "clear\n"
 516 gdb_expect {
 517   -re "No breakpoint at this line..*$gdb_prompt $"\
 518           {pass "clear current line has no breakpoint disallowed"}
 519   -re "$gdb_prompt $"\
 520           {fail "clear current line has no breakpoint disallowed"}
 521   timeout {fail "(timeout) clear current line has no breakpoint disallowed"}
 522 }
 523
 524 # Verify that we can set and clear multiple breakpoints.
 525 #
 526 # We don't test that it deletes the correct breakpoints.  We do at
 527 # least test that it deletes more than one breakpoint.
 528 #
 529 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 530 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 531 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 532
 533 # Verify that a breakpoint can be set via a convenience variable.
 534 #
 535 send_gdb "set \$foo=81\n"
 536 gdb_expect {
 537   -re "$gdb_prompt $"\
 538           {pass "set convenience variable \$foo to 81"}
 539   timeout {fail "(timeout) set convenience variable \$foo to 81"}
 540 }
 541 send_gdb "break \$foo\n"
 542 gdb_expect {
 543   -re "Breakpoint (\[0-9\]*) at .*, line 81.*$gdb_prompt $"\
 544           {pass "set breakpoint via convenience variable"}
 545   -re "$gdb_prompt $"\
 546           {fail "set breakpoint via convenience variable"}
 547   timeout {fail "(timeout) set breakpoint via convenience variable"}
 548 }
 549
 550 # Verify that GDB responds gracefully to an attempt to set a
 551 # breakpoint via a convenience variable whose type is not integer.
 552 #
 553 send_gdb "set \$foo=81.5\n"
 554 gdb_expect {
 555   -re "$gdb_prompt $"\
 556           {pass "set convenience variable \$foo to 81.5"}
 557   timeout {fail "(timeout) set convenience variable \$foo to 81.5"}
 558 }
 559 send_gdb "break \$foo\n"
 560 gdb_expect {
 561   -re "Convenience variables used in line specs must have integer values..*$gdb_prompt $"\
 562           {pass "set breakpoint via non-integer convenience variable disallowed"}
 563   -re "$gdb_prompt $"\
 564           {fail "set breakpoint via non-integer convenience variable disallowed"}
 565   timeout {fail "(timeout) set breakpoint via non-integer convenience variable disallowed"}
 566 }
 567
 568 # Verify that we can set and trigger a breakpoint in a user-called function.
 569 #
 570 send_gdb "break marker2\n"
 571 gdb_expect {
 572     -re "Breakpoint (\[0-9\]*) at .*, line 4\[49\].*$gdb_prompt $"\
 573           {pass "set breakpoint on to-be-called function"}
 574   -re "$gdb_prompt $"\
 575           {fail "set breakpoint on to-be-called function"}
 576   timeout {fail "(timeout) set breakpoint on to-be-called function"}
 577 }
 578 send_gdb "print marker2(99)\n"
 579 gdb_expect {
 580   -re "The program being debugged stopped while in a function called from GDB.\r\nWhen the function .marker2$proto. is done executing, GDB will silently\r\nstop .instead of continuing to evaluate the expression containing\r\nthe function call...*$gdb_prompt $"\
 581           {pass "hit breakpoint on called function"}
 582   -re "$gdb_prompt $"\
 583           {fail "hit breakpoint on called function"}
 584   timeout {fail "(timeout) hit breakpoint on called function"}
 585 }
 586
 587 # As long as we're stopped (breakpointed) in a called function,
 588 # verify that we can successfully backtrace & such from here.
 589 #
 590 # In this and the following test, the _sr4export check apparently is needed
 591 # for hppa*-*-hpux.
 592 #
 593 send_gdb "bt\n"
 594 gdb_expect {
 595     -re "#0\[ \t\]*$hex in marker2.*:4\[49\]\r\n#1.*_sr4export.*$gdb_prompt $"\
 596             {pass "backtrace while in called function"}
 597     -re "#0\[ \t\]*($hex in )?marker2.*:4\[49\]\r\n#1.*function called from gdb.*$gdb_prompt $"\
 598             {pass "backtrace while in called function"}
 599     -re "$gdb_prompt $"\
 600             {fail "backtrace while in called function"}
 601     timeout {fail "(timeout) backtrace while in called function"}
 602 }
 603
 604 # Return from the called function.  For remote targets, it's important to do
 605 # this before runto_main, which otherwise may silently stop on the dummy
 606 # breakpoint inserted by GDB at the program's entry point.
 607 #
 608 send_gdb "finish\n"
 609 gdb_expect {
 610     -re "Run till exit from .*marker2.* at .*4\[49\]\r\n.* in _sr4export.*$gdb_prompt $"\
 611             {pass "finish from called function"}
 612     -re "Run till exit from .*marker2.* at .*4\[49\]\r\n.*function called from gdb.*$gdb_prompt $"\
 613             {pass "finish from called function"}
 614     -re "Run till exit from .*marker2.* at .*4\[49\]\r\n.*Value returned.*$gdb_prompt $"\
 615             {pass "finish from called function"}
 616     -re "$gdb_prompt $"\
 617             {fail "finish from called function"}
 618     timeout {fail "(timeout) finish from called function"}
 619 }
 620
 621 # Verify that GDB responds gracefully to a "finish" command with
 622 # arguments.
 623 #
 624 if ![runto_main] then { fail "break tests suppressed" }
 625
 626 send_gdb "finish 123\n"
 627 gdb_expect {
 628   -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
 629           {pass "finish with arguments disallowed"}
 630   -re "$gdb_prompt $"\
 631           {fail "finish with arguments disallowed"}
 632   timeout {fail "(timeout) finish with arguments disallowed"}
 633 }
 634
 635 # Verify that GDB responds gracefully to a request to "finish" from
 636 # the outermost frame.  On a stub that never exits, this will just
 637 # run to the stubs routine, so we don't get this error...  Thus the
 638 # second condition.
 639 #
 640
 641 send_gdb "finish\n"
 642 gdb_expect {
 643   -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $"\
 644           {pass "finish from outermost frame disallowed"}
 645   -re "Run till exit from.*\r\n$gdb_prompt $" {
 646      pass "finish from outermost frame disallowed"
 647   }
 648   -re "$gdb_prompt $"\
 649           {fail "finish from outermost frame disallowed"}
 650   timeout {fail "(timeout) finish from outermost frame disallowed"}
 651 }
 652
 653 # Verify that we can explicitly ask GDB to stop on all shared library
 654 # events, and that it does so.
 655 #
 656 if [istarget "hppa*-*-hpux*"] then {
 657   if ![runto_main] then { fail "break tests suppressed" }
 658
 659   send_gdb "set stop-on-solib-events 1\n"
 660   gdb_expect {
 661     -re "$gdb_prompt $"\
 662             {pass "set stop-on-solib-events"}
 663     timeout {fail "(timeout) set stop-on-solib-events"}
 664   }
 665
 666   send_gdb "run\n"
 667   gdb_expect {
 668     -re ".*Start it from the beginning.*y or n. $"\
 669             {send_gdb "y\n"
 670              gdb_expect {
 671                -re ".*Stopped due to shared library event.*$gdb_prompt $"\
 672                        {pass "triggered stop-on-solib-events"}
 673                -re "$gdb_prompt $"\
 674                        {fail "triggered stop-on-solib-events"}
 675                timeout {fail "(timeout) triggered stop-on-solib-events"}
 676              }
 677             }
 678     -re "$gdb_prompt $"\
 679             {fail "rerun for stop-on-solib-events"}
 680     timeout {fail "(timeout) rerun for stop-on-solib-events"}
 681   }
 682
 683   send_gdb "set stop-on-solib-events 0\n"
 684   gdb_expect {
 685     -re "$gdb_prompt $"\
 686             {pass "reset stop-on-solib-events"}
 687     timeout {fail "(timeout) reset stop-on-solib-events"}
 688   }
 689 }
 690
 691 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 692 # gracefully responds to requests to create them.
 693 #
 694 if [istarget "hppa*-*-hpux*"] then {
 695   if ![runto_main] then { fail "break tests suppressed" }
 696
 697   send_gdb "hbreak\n"
 698   gdb_expect {
 699     -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
 700             {pass "hw breaks disallowed"}
 701     -re "$gdb_prompt $"\
 702             {fail "hw breaks disallowed"}
 703     timeout {fail "(timeout) hw breaks disallowed"}
 704   }
 705
 706   send_gdb "thbreak\n"
 707   gdb_expect {
 708     -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
 709             {pass "temporary hw breaks disallowed"}
 710     -re "$gdb_prompt $"\
 711             {fail "temporary hw breaks disallowed"}
 712     timeout {fail "(timeout) temporary hw breaks disallowed"}
 713   }
 714 }
 715
 716 #********
 717
 718
 719 #
 720 # Test "next" over recursive function call.
 721 #
 722
 723 proc test_next_with_recursion {} {
 724     global gdb_prompt
 725     global decimal
 726     global binfile
 727
 728     if [target_info exists use_gdb_stub] {
 729         # Reload the program.
 730         delete_breakpoints
 731         gdb_load ${binfile};
 732     } else {
 733         # FIXME: should be using runto
 734         gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 735
 736         delete_breakpoints
 737     }
 738
 739     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 740
 741     # Run until we call factorial with 6
 742
 743     if [istarget "*-*-vxworks*"] then {
 744         send_gdb "run vxmain \"6\"\n"
 745     } else {
 746         gdb_run_cmd
 747     }
 748     gdb_expect {
 749         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 750         -re ".*$gdb_prompt $" {
 751             fail "run to factorial(6)";
 752             gdb_suppress_tests;
 753         }
 754         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 755     }
 756
 757     # Continue until we call factorial recursively with 5.
 758
 759     if [gdb_test "continue" \
 760         "Continuing.*Break.* factorial .value=5. .*" \
 761         "continue to factorial(5)"] then { gdb_suppress_tests }
 762
 763     # Do a backtrace just to confirm how many levels deep we are.
 764
 765     if [gdb_test "backtrace" \
 766         "#0\[ \t\]+ factorial .value=5..*" \
 767         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 768
 769     # Now a "next" should position us at the recursive call, which
 770     # we will be performing with 4.
 771
 772     if [gdb_test "next" \
 773         ".* factorial .value - 1.;.*" \
 774         "next to recursive call"] then { gdb_suppress_tests }
 775
 776     # Disable the breakpoint at the entry to factorial by deleting them all.
 777     # The "next" should run until we return to the next line from this
 778     # recursive call to factorial with 4.
 779     # Buggy versions of gdb will stop instead at the innermost frame on
 780     # the line where we are trying to "next" to.
 781
 782     delete_breakpoints
 783
 784     if [istarget "mips*tx39-*"] {
 785         set timeout 60
 786     } else {
 787         set timeout 20
 788     }
 789
 790     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 791             "next over recursive call"
 792
 793     # OK, we should be back in the same stack frame we started from.
 794     # Do a backtrace just to confirm.
 795
 796     set result [gdb_test "backtrace" \
 797             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 798             "backtrace from factorial(5.1)"]
 799     if { $result != 0 } { gdb_suppress_tests }
 800
 801     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 802   gdb_continue_to_end "recursive next test"
 803    gdb_stop_suppressing_tests;
 804 }
 805
 806 test_next_with_recursion
 807
 808
 809 #********
 810
 811 # build a new file with optimization enabled so that we can try breakpoints
 812 # on targets with optimized prologues
 813
 814 set binfileo2 ${objdir}/${subdir}/${testfile}o2
 815
 816 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfileo2}" executable {debug additional_flags="-O2" }] != "" } {
 817     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 818 }
 819
 820 if [get_compiler_info ${binfileo2}] {
 821     return -1
 822 }
 823
 824 gdb_exit
 825 gdb_start
 826 gdb_reinitialize_dir $srcdir/$subdir
 827 gdb_load ${binfileo2}
 828
 829 if [target_info exists gdb_stub] {
 830     gdb_step_for_stub;
 831 }
 832
 833 #
 834 # test break at function
 835 #
 836 gdb_test "break main" \
 837     "Breakpoint.*at.* file .*$srcfile, line.*" \
 838     "breakpoint function, optimized file"
 839
 840 #
 841 # test break at function
 842 #
 843 gdb_test "break marker4" \
 844     "Breakpoint.*at.* file .*$srcfile, line.*" \
 845     "breakpoint small function, optimized file"
 846
 847 #
 848 # run until the breakpoint at main is hit. For non-stubs-using targets.
 849 #
 850 if ![target_info exists use_gdb_stub] {
 851   if [istarget "*-*-vxworks*"] then {
 852     send_gdb "run vxmain \"2\"\n"
 853     set timeout 120
 854     verbose "Timeout is now $timeout seconds" 2
 855   } else {
 856         send_gdb "run\n"
 857   }
 858   gdb_expect {
 859     -re "The program .* has been started already.*y or n. $" {
 860         send_gdb "y\n"
 861         exp_continue
 862     }
 863     -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:75.*75\[\t \]+if .argc.* \{.*$gdb_prompt $"\
 864                             { pass "run until function breakpoint, optimized file" }
 865     -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $"\
 866                             { pass "run until function breakpoint, optimized file (code motion)" }
 867     -re ".*$gdb_prompt $"       { fail "run until function breakpoint, optimized file" }
 868     timeout                 { fail "run until function breakpoint, optimized file (timeout)" }
 869   }
 870 } else {
 871     if ![target_info exists gdb_stub] {
 872         gdb_test continue ".*Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:75.*75\[\t \]+if .argc.*\{.*" "stub continue, optimized file"
 873     }
 874 }
 875
 876 #
 877 # run until the breakpoint at a small function
 878 #
 879
 880 #
 881 # Add a second pass pattern.  The behavior differs here between stabs
 882 # and dwarf for one-line functions.  Stabs preserves two line symbols
 883 # (one before the prologue and one after) with the same line number,
 884 # but dwarf regards these as duplicates and discards one of them.
 885 # Therefore the address after the prologue (where the breakpoint is)
 886 # has no exactly matching line symbol, and GDB reports the breakpoint
 887 # as if it were in the middle of a line rather than at the beginning.
 888
 889 send_gdb "continue\n"
 890 gdb_expect {
 891     -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile:51\[\r\n\]+51\[\t \]+void marker4.*" {
 892         pass "run until breakpoint set at small function, optimized file"
 893     }
 894     -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile:51\[\r\n\]+51\[\t \]+void marker4.*" {
 895         pass "run until breakpoint set at small function, optimized file"
 896     }
 897     -re ".*$gdb_prompt " {
 898         fail "run until breakpoint set at small function, optimized file"
 899     }
 900     timeout {
 901         fail "run until breakpoint set at small function, optimized file (timeout)"
 902     }
 903 }
 904
 905
 906 # Reset the default arguments for VxWorks
 907 if [istarget "*-*-vxworks*"] {
 908     set timeout 10
 909     verbose "Timeout is now $timeout seconds" 2
 910     send_gdb "set args main\n"
 911     gdb_expect -re ".*$gdb_prompt $" {}
 912 }