gdb/testsuite/gdb.base/break.exp

   1 #   Copyright 1988, 1990-1992, 1994-2000, 2002-2003, 2007-2012 Free
   2 #   Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Rob Savoye. (rob@cygnus.com)
  18
  19 if { [prepare_for_testing break.exp "break" {break.c break1.c} {debug nowarnings}] } {
  20     return -1
  21 }
  22 set srcfile break.c
  23 set srcfile1 break1.c
  24 #
  25 # test simple breakpoint setting commands
  26 #
  27
  28 # Test deleting all breakpoints when there are none installed,
  29 # GDB should not prompt for confirmation.
  30 # Note that lib/gdb.exp provides a "delete_breakpoints" proc
  31 # for general use elsewhere.
  32
  33 send_gdb "delete breakpoints\n"
  34 gdb_expect {
  35      -re "Delete all breakpoints.*$" {
  36             send_gdb "y\n"
  37             gdb_expect {
  38                 -re "$gdb_prompt $" {
  39                     fail "Delete all breakpoints when none (unexpected prompt)"
  40                 }
  41                 timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
  42             }
  43         }
  44      -re ".*$gdb_prompt $"       { pass "Delete all breakpoints when none" }
  45     timeout                 { fail "Delete all breakpoints when none (timeout)" }
  46 }
  47
  48 #
  49 # test break at function
  50 #
  51 gdb_test "break main" \
  52     "Breakpoint.*at.* file .*$srcfile, line.*" \
  53     "breakpoint function"
  54
  55 #
  56 # test break at quoted function
  57 #
  58 gdb_test "break \"marker2\"" \
  59     "Breakpoint.*at.* file .*$srcfile1, line.*" \
  60     "breakpoint quoted function"
  61
  62 #
  63 # test break at function in file
  64 #
  65 gdb_test "break $srcfile:factorial" \
  66     "Breakpoint.*at.* file .*$srcfile, line.*" \
  67     "breakpoint function in file"
  68
  69 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  70
  71 #
  72 # test break at line number
  73 #
  74 # Note that the default source file is the last one whose source text
  75 # was printed.  For native debugging, before we've executed the
  76 # program, this is the file containing main, but for remote debugging,
  77 # it's wherever the processor was stopped when we connected to the
  78 # board.  So, to be sure, we do a list command.
  79 #
  80 gdb_test "list main" \
  81     ".*main \\(argc, argv, envp\\).*" \
  82     "use `list' to establish default source file"
  83 gdb_test "break $bp_location1" \
  84     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
  85     "breakpoint line number"
  86
  87 #
  88 # test duplicate breakpoint
  89 #
  90 gdb_test "break $bp_location1" \
  91     "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
  92     "breakpoint duplicate"
  93
  94 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
  95
  96 #
  97 # test break at line number in file
  98 #
  99 gdb_test "break $srcfile:$bp_location2" \
 100     "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
 101     "breakpoint line number in file"
 102
 103 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 104 set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]
 105
 106 #
 107 # Test putting a break at the start of a multi-line if conditional.
 108 # Verify the breakpoint was put at the start of the conditional.
 109 #
 110 gdb_test "break multi_line_if_conditional" \
 111     "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
 112     "breakpoint at start of multi line if conditional"
 113
 114 gdb_test "break multi_line_while_conditional" \
 115     "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
 116     "breakpoint at start of multi line while conditional"
 117
 118 set bp_location5 [gdb_get_line_number "set breakpoint 5 here"]
 119 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 120
 121 set main_line $bp_location6
 122
 123 if {$hp_aCC_compiler} {
 124     set proto "\\(int\\)"
 125 } else {
 126     set proto ""
 127 }
 128
 129 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
 130 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
 131 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
 132
 133 gdb_test "info break" \
 134     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 135 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 136 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
 137 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
 138 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 139 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 140 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
 141 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
 142 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
 143     "breakpoint info"
 144
 145 #
 146 # Test info breakpoint with arguments
 147 #
 148
 149 set see1 0
 150 set see2 0
 151 set see3 0
 152 set see4 0
 153 set see5 0
 154 set see6 0
 155
 156 gdb_test_multiple "info break 2 4 6" "info break 2 4 6" {
 157     -re "1\[\t \]+breakpoint *keep y\[^\r\n\]*:$main_line\[^\r\n\]*" {
 158         set see1 1
 159         exp_continue
 160     }
 161     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 162         set see2 1
 163         exp_continue
 164     }
 165     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 166         set see3 1
 167         exp_continue
 168     }
 169     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 170         set see4 1
 171         exp_continue
 172     }
 173     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 174         set see5 1
 175         exp_continue
 176     }
 177     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 178         set see6 1
 179         exp_continue
 180     }
 181     -re ".*$gdb_prompt $" {
 182         if { !$see1 && $see2 && !$see3 && $see4 && !$see5 && $see6 } then {
 183             pass "info break 2 4 6"
 184         } else {
 185             fail "info break 2 4 6"
 186         }
 187     }
 188 }
 189
 190 set see1 0
 191 set see2 0
 192 set see3 0
 193 set see4 0
 194 set see5 0
 195 set see6 0
 196
 197 gdb_test_multiple "info break 3-5" "info break 3-5" {
 198     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 199         set see1 1
 200         exp_continue
 201     }
 202     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 203         set see2 1
 204         exp_continue
 205     }
 206     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 207         set see3 1
 208         exp_continue
 209     }
 210     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 211         set see4 1
 212         exp_continue
 213     }
 214     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 215         set see5 1
 216         exp_continue
 217     }
 218     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 219         set see6 1
 220         exp_continue
 221     }
 222     -re ".*$gdb_prompt $" {
 223         if { !$see1 && !$see2 && $see3 && $see4 && $see5 && !$see6 } then {
 224             pass "info break 3-5"
 225         } else {
 226             fail "info break 3-5"
 227         }
 228     }
 229 }
 230
 231 #
 232 # Test disable/enable with arguments
 233 #
 234
 235 # Test with value history
 236
 237 gdb_test "print 1" "" ""
 238 gdb_test "print 2" "" ""
 239 gdb_test "print 3" "" ""
 240 gdb_test "print 4" "" ""
 241 gdb_test "print 5" "" ""
 242 gdb_test "print 6" "" ""
 243
 244 # $2 is 2 and $$ is 5
 245 gdb_test_no_output "disable \$2 \$\$" "disable using history values"
 246
 247 set see1 0
 248 set see2 0
 249 set see3 0
 250 set see4 0
 251 set see5 0
 252 set see6 0
 253
 254 gdb_test_multiple "info break" "check disable with history values" {
 255     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 256         set see1 1
 257         exp_continue
 258     }
 259     -re "2\[\t \]+breakpoint *keep n\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 260         set see2 1
 261         exp_continue
 262     }
 263     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 264         set see3 1
 265         exp_continue
 266     }
 267     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 268         set see4 1
 269         exp_continue
 270     }
 271     -re "5\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 272         set see5 1
 273         exp_continue
 274     }
 275     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 276         set see6 1
 277         exp_continue
 278     }
 279     -re ".*$gdb_prompt $" {
 280         if { $see1 && $see2 && $see3 && $see4 && $see5 && $see6 } then {
 281             pass "check disable with history values"
 282         } else {
 283             fail "check disable with history values"
 284         }
 285     }
 286 }
 287
 288 gdb_test "enable" "" ""
 289 gdb_test "set \$foo = 3" "" ""
 290 gdb_test "set \$bar = 6" "" ""
 291 gdb_test_no_output "disable \$foo \$bar" "disable with convenience values"
 292
 293 set see1 0
 294 set see2 0
 295 set see3 0
 296 set see4 0
 297 set see5 0
 298 set see6 0
 299
 300 gdb_test_multiple "info break" "check disable with convenience values" {
 301     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 302         set see1 1
 303         exp_continue
 304     }
 305     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 306         set see2 1
 307         exp_continue
 308     }
 309     -re "3\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 310         set see3 1
 311         exp_continue
 312     }
 313     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 314         set see4 1
 315         exp_continue
 316     }
 317     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 318         set see5 1
 319         exp_continue
 320     }
 321     -re "6\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 322         set see6 1
 323         exp_continue
 324     }
 325     -re ".*$gdb_prompt $" {
 326         if { $see1 && $see2 && $see3 && $see4 && $see5 && $see6 } then {
 327             pass "check disable with convenience values"
 328         } else {
 329             fail "check disable with convenience values"
 330         }
 331     }
 332 }
 333
 334 # test with bad values
 335
 336 gdb_test "enable" "" ""
 337 gdb_test "disable 10" "No breakpoint number 10." \
 338     "disable non-existent breakpoint 10"
 339
 340 gdb_test "set \$baz 1.234"
 341 gdb_test "disable \$baz" \
 342     "Convenience variable must have integer value.*" \
 343     "disable with non-integer convenience var"
 344 gdb_test "disable \$grbx" \
 345     "Convenience variable must have integer value.*" \
 346     "disable with non-existent convenience var"
 347 gdb_test "disable \$10" \
 348     "History has not yet reached .10." \
 349     "disable with non-existent history value"
 350 gdb_test "disable \$1foo" \
 351     "Convenience variable must have integer value.*" \
 352     "disable with badly formed history value"
 353
 354 # FIXME: The rest of this test doesn't work with anything that can't
 355 # handle arguments.
 356 # Huh? There doesn't *appear* to be anything that passes arguments
 357 # below.
 358 if [istarget "mips-idt-*"] then {
 359     return
 360 }
 361
 362 #
 363 # run until the breakpoint at main is hit. For non-stubs-using targets.
 364 #
 365 gdb_run_cmd
 366 gdb_expect {
 367     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 368         pass "run until function breakpoint"
 369     }
 370     -re "$gdb_prompt $" {
 371         fail "run until function breakpoint"
 372     }
 373     timeout {
 374         fail "run until function breakpoint (timeout)"
 375     }
 376 }
 377
 378 #
 379 # run until the breakpoint at a line number
 380 #
 381 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 382                         "run until breakpoint set at a line number"
 383
 384 #
 385 # Run until the breakpoint set in a function in a file
 386 #
 387 for {set i 6} {$i >= 1} {incr i -1} {
 388         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
 389                         "run until file:function($i) breakpoint"
 390 }
 391
 392 #
 393 # Run until the breakpoint set at a quoted function
 394 #
 395 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*" \
 396                 "run until quoted breakpoint"
 397 #
 398 # run until the file:function breakpoint at a line number in a file
 399 #
 400 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
 401                 "run until file:linenum breakpoint"
 402
 403 # Test break at offset +1
 404 set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
 405
 406 gdb_test "break +1" \
 407     "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
 408     "breakpoint offset +1"
 409
 410 # Check to see if breakpoint is hit when stepped onto
 411
 412 gdb_test "step" \
 413     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
 414     "step onto breakpoint"
 415
 416 # Check to see if breakpoint can be set on ending brace of function
 417 set bp_location10a [gdb_get_line_number "set breakpoint 10a here"]
 418
 419 gdb_test "break $bp_location10a" \
 420     "Breakpoint.*at.* file .*$srcfile, line $bp_location10a\\." \
 421     "setting breakpoint at }"
 422
 423 gdb_test "continue" \
 424     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10a.*$bp_location10a\[\t \]+}.*breakpoint 10a here.*" \
 425     "continue to breakpoint at }"
 426
 427 #
 428 # delete all breakpoints so we can start over, course this can be a test too
 429 #
 430 delete_breakpoints
 431
 432 #
 433 # test temporary breakpoint at function
 434 #
 435
 436 gdb_test "tbreak main" "Temporary breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 437
 438 #
 439 # test break at function in file
 440 #
 441
 442 gdb_test "tbreak $srcfile:factorial" "Temporary breakpoint.*at.* file .*$srcfile, line.*" \
 443         "Temporary breakpoint function in file"
 444
 445 #
 446 # test break at line number
 447 #
 448 gdb_test "tbreak $bp_location1" \
 449     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location1.*" \
 450     "Temporary breakpoint line number #1"
 451
 452 gdb_test "tbreak $bp_location6" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location6.*" "Temporary breakpoint line number #2"
 453
 454 #
 455 # test break at line number in file
 456 #
 457 gdb_test "tbreak $srcfile:$bp_location2" \
 458     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location2.*" \
 459     "Temporary breakpoint line number in file #1"
 460
 461 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
 462 gdb_test  "tbreak $srcfile:$bp_location11" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
 463
 464 #
 465 # check to see what breakpoints are set (temporary this time)
 466 #
 467 gdb_test "info break" "Num     Type.*Disp Enb Address.*What.*\[\r\n\]
 468 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 469 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
 470 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
 471 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
 472 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
 473 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
 474     "Temporary breakpoint info"
 475
 476
 477 #***********
 478
 479 # Verify that catchpoints for fork, vfork and exec don't trigger
 480 # inappropriately.  (There are no calls to those system functions
 481 # in this test program.)
 482 #
 483 if ![runto_main] then { fail "break tests suppressed" }
 484
 485 gdb_test "catch" \
 486     "Catch requires an event name." \
 487     "catch requires an event name"
 488
 489
 490 set name "set catch fork, never expected to trigger"
 491 gdb_test_multiple "catch fork" "$name" {
 492     -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $" {
 493         pass $name
 494     }
 495     -re "Catch of fork not yet implemented.*$gdb_prompt $" {
 496         pass $name
 497     }
 498 }
 499
 500
 501 # If we are on HP-UX 10.20, we expect an error message to be
 502 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 503 # because on HP-UX 10.20, we cannot catch vfork events.
 504
 505 set name "set catch vfork, never expected to trigger"
 506
 507 if [istarget "hppa*-hp-hpux10.20"] then {
 508     gdb_test "catch vfork" \
 509         "Catch of vfork events not supported on HP-UX 10.20..*" \
 510         "$name"
 511 } else {
 512     gdb_test_multiple "catch vfork" "$name" {
 513         -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $" {
 514             pass $name
 515         }
 516         -re "Catch of vfork not yet implemented.*$gdb_prompt $" {
 517             pass $name
 518         }
 519     }
 520 }
 521
 522 set name "set catch exec, never expected to trigger"
 523 gdb_test_multiple "catch exec" "$name" {
 524     -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $" {
 525         pass $name
 526     }
 527     -re "Catch of exec not yet implemented.*$gdb_prompt $" {
 528         pass $name
 529     }
 530 }
 531
 532 # Verify that GDB responds gracefully when asked to set a breakpoint
 533 # on a nonexistent source line.
 534 #
 535 gdb_test_no_output "set breakpoint pending off"
 536 gdb_test "break 999" \
 537     "No line 999 in the current file." \
 538     "break on non-existent source line"
 539
 540 # Run to the desired default location. If not positioned here, the
 541 # tests below don't work.
 542 #
 543 gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" \
 544     "until bp_location1"
 545
 546 # Verify that GDB allows one to just say "break", which is treated
 547 # as the "default" breakpoint.  Note that GDB gets cute when printing
 548 # the informational message about other breakpoints at the same
 549 # location.  We'll hit that bird with this stone too.
 550 #
 551 gdb_test "break" "Breakpoint \[0-9\]*.*" \
 552     "break on default location, 1st time"
 553
 554 gdb_test "break" \
 555     "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 556     "break on default location, 2nd time"
 557
 558 gdb_test "break" \
 559     "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 560     "break on default location, 3rd time"
 561
 562 gdb_test "break" \
 563     "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 564     "break on default location, 4th time"
 565
 566 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 567 # "silent" about its triggering.
 568 #
 569 if ![runto_main] then { fail "break tests suppressed" }
 570
 571 gdb_test_multiple "break $bp_location1" \
 572     "set to-be-silent break bp_location1" {
 573         -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $" {
 574             pass "set to-be-silent break bp_location1"
 575         }
 576     }
 577
 578 gdb_test "commands $expect_out(1,string)\nsilent\nend" ">end" "set silent break bp_location1"
 579
 580 gdb_test "info break $expect_out(1,string)" \
 581     "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*" \
 582     "info silent break bp_location1"
 583
 584 gdb_test "continue" "Continuing." \
 585     "hit silent break bp_location1"
 586
 587 gdb_test "bt" "#0  main .* at .*:$bp_location1.*" \
 588     "stopped for silent break bp_location1"
 589
 590 # Verify that GDB can at least parse a breakpoint with the
 591 # "thread" keyword.  (We won't attempt to test here that a
 592 # thread-specific breakpoint really triggers appropriately.
 593 # The gdb.threads subdirectory contains tests for that.)
 594 #
 595 set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
 596 gdb_test "break $bp_location12 thread 999" "Unknown thread 999.*" \
 597     "thread-specific breakpoint on non-existent thread disallowed"
 598
 599 gdb_test "break $bp_location12 thread foo" \
 600     "Junk after thread keyword.*" \
 601     "thread-specific breakpoint on bogus thread ID disallowed"
 602
 603 # Verify that GDB responds gracefully to a breakpoint command with
 604 # trailing garbage.
 605 #
 606 gdb_test "break $bp_location12 foo" \
 607     "Junk at end of arguments.*" \
 608     "breakpoint with trailing garbage disallowed"
 609
 610 # Verify that GDB responds gracefully to a "clear" command that has
 611 # no matching breakpoint.  (First, get us off the current source line,
 612 # which we know has a breakpoint.)
 613 #
 614 gdb_test "next" "marker1.*" "step over breakpoint"
 615
 616 gdb_test "clear 81" "No breakpoint at 81.*" \
 617     "clear line has no breakpoint disallowed"
 618
 619 gdb_test "clear" "No breakpoint at this line.*" \
 620     "clear current line has no breakpoint disallowed"
 621
 622 # Verify that we can set and clear multiple breakpoints.
 623 #
 624 # We don't test that it deletes the correct breakpoints.  We do at
 625 # least test that it deletes more than one breakpoint.
 626 #
 627 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 628 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 629 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 630
 631 # Verify that a breakpoint can be set via a convenience variable.
 632 #
 633 gdb_test_no_output "set \$foo=$bp_location11" \
 634     "set convenience variable \$foo to bp_location11"
 635
 636 gdb_test "break \$foo" \
 637     "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*" \
 638     "set breakpoint via convenience variable"
 639
 640 # Verify that GDB responds gracefully to an attempt to set a
 641 # breakpoint via a convenience variable whose type is not integer.
 642 #
 643 gdb_test_no_output "set \$foo=81.5" \
 644     "set convenience variable \$foo to 81.5"
 645
 646 gdb_test "break \$foo" \
 647     "Convenience variables used in line specs must have integer values.*" \
 648     "set breakpoint via non-integer convenience variable disallowed"
 649
 650 # Verify that we can set and trigger a breakpoint in a user-called function.
 651 #
 652 gdb_test "break marker2" \
 653     "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*" \
 654     "set breakpoint on to-be-called function"
 655
 656 gdb_test "print marker2(99)" \
 657     "The program being debugged stopped while in a function called from GDB.\r\nEvaluation of the expression containing the function\r\n.marker2$proto. will be abandoned.\r\nWhen the function is done executing, GDB will silently stop.*" \
 658     "hit breakpoint on called function"
 659
 660 # As long as we're stopped (breakpointed) in a called function,
 661 # verify that we can successfully backtrace & such from here.
 662 #
 663 # In this and the following test, the _sr4export check apparently is needed
 664 # for hppa*-*-hpux.
 665 #
 666 gdb_test_multiple "bt" "backtrace while in called function" {
 667     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $" {
 668         pass "backtrace while in called function"
 669     }
 670     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $" {
 671         pass "backtrace while in called function"
 672     }
 673 }
 674
 675 # Return from the called function.  For remote targets, it's important to do
 676 # this before runto_main, which otherwise may silently stop on the dummy
 677 # breakpoint inserted by GDB at the program's entry point.
 678 #
 679 gdb_test_multiple "finish" "finish from called function" {
 680     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $" {
 681         pass "finish from called function"
 682     }
 683     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $" {
 684         pass "finish from called function"
 685     }
 686     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $" {
 687         pass "finish from called function"
 688     }
 689 }
 690
 691 # Verify that GDB responds gracefully to a "finish" command with
 692 # arguments.
 693 #
 694 if ![runto_main] then { fail "break tests suppressed" }
 695
 696 send_gdb "finish 123\n"
 697 gdb_expect {
 698   -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
 699           {pass "finish with arguments disallowed"}
 700   -re "$gdb_prompt $"\
 701           {fail "finish with arguments disallowed"}
 702   timeout {fail "(timeout) finish with arguments disallowed"}
 703 }
 704
 705 # Verify that GDB responds gracefully to a request to "finish" from
 706 # the outermost frame.  On a stub that never exits, this will just
 707 # run to the stubs routine, so we don't get this error...  Thus the
 708 # second condition.
 709 #
 710
 711 gdb_test_multiple "finish" "finish from outermost frame disallowed" {
 712     -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $" {
 713         pass "finish from outermost frame disallowed"
 714     }
 715     -re "Run till exit from.*\r\n$gdb_prompt $" {
 716         pass "finish from outermost frame disallowed"
 717     }
 718 }
 719
 720 # Verify that we can explicitly ask GDB to stop on all shared library
 721 # events, and that it does so.
 722 #
 723 if [istarget "hppa*-*-hpux*"] then {
 724     if ![runto_main] then { fail "break tests suppressed" }
 725
 726     gdb_test_no_output "set stop-on-solib-events 1" \
 727         "set stop-on-solib-events"
 728
 729     gdb_test "run" \
 730         "Stopped due to shared library event.*" \
 731         "triggered stop-on-solib-events" \
 732         "Start it from the beginning.*y or n. $" \
 733         "y"
 734
 735     gdb_test_no_output "set stop-on-solib-events 0" \
 736         "reset stop-on-solib-events"
 737 }
 738
 739 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 740 # gracefully responds to requests to create them.
 741 #
 742 if [istarget "hppa*-*-hpux*"] then {
 743     if ![runto_main] then { fail "break tests suppressed" }
 744
 745     gdb_test "hbreak" \
 746         "No hardware breakpoint support in the target.*" \
 747         "hw breaks disallowed"
 748
 749     gdb_test "thbreak" \
 750         "No hardware breakpoint support in the target.*" \
 751         "temporary hw breaks disallowed"
 752 }
 753
 754 #********
 755
 756
 757 #
 758 # Test "next" over recursive function call.
 759 #
 760
 761 proc test_next_with_recursion {} {
 762     global gdb_prompt
 763     global decimal
 764     global binfile
 765
 766     gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 767     delete_breakpoints
 768
 769     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 770
 771     # Run until we call factorial with 6
 772
 773     gdb_run_cmd
 774     gdb_expect {
 775         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 776         -re ".*$gdb_prompt $" {
 777             fail "run to factorial(6)";
 778             gdb_suppress_tests;
 779         }
 780         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 781     }
 782
 783     # Continue until we call factorial recursively with 5.
 784
 785     if [gdb_test "continue" \
 786         "Continuing.*Break.* factorial .value=5. .*" \
 787         "continue to factorial(5)"] then { gdb_suppress_tests }
 788
 789     # Do a backtrace just to confirm how many levels deep we are.
 790
 791     if [gdb_test "backtrace" \
 792         "#0\[ \t\]+ factorial .value=5..*" \
 793         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 794
 795     # Now a "next" should position us at the recursive call, which
 796     # we will be performing with 4.
 797
 798     if [gdb_test "next" \
 799         ".* factorial .value - 1.;.*" \
 800         "next to recursive call"] then { gdb_suppress_tests }
 801
 802     # Disable the breakpoint at the entry to factorial by deleting them all.
 803     # The "next" should run until we return to the next line from this
 804     # recursive call to factorial with 4.
 805     # Buggy versions of gdb will stop instead at the innermost frame on
 806     # the line where we are trying to "next" to.
 807
 808     delete_breakpoints
 809
 810     if [istarget "mips*tx39-*"] {
 811         set timeout 60
 812     }
 813     # We used to set timeout here for all other targets as well.  This
 814     # is almost certainly wrong.  The proper timeout depends on the
 815     # target system in use, and how we communicate with it, so there
 816     # is no single value appropriate for all targets.  The timeout
 817     # should be established by the Dejagnu config file(s) for the
 818     # board, and respected by the test suite.
 819     #
 820     # For example, if I'm running GDB over an SSH tunnel talking to a
 821     # portmaster in California talking to an ancient 68k board running
 822     # a crummy ROM monitor (a situation I can only wish were
 823     # hypothetical), then I need a large timeout.  But that's not the
 824     # kind of knowledge that belongs in this file.
 825
 826     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 827             "next over recursive call"
 828
 829     # OK, we should be back in the same stack frame we started from.
 830     # Do a backtrace just to confirm.
 831
 832     set result [gdb_test "backtrace" \
 833             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 834             "backtrace from factorial(5.1)"]
 835     if { $result != 0 } { gdb_suppress_tests }
 836
 837     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 838   gdb_continue_to_end "recursive next test"
 839    gdb_stop_suppressing_tests;
 840 }
 841
 842 test_next_with_recursion
 843
 844
 845 #********
 846
 847 # build a new file with optimization enabled so that we can try breakpoints
 848 # on targets with optimized prologues
 849
 850 if { [prepare_for_testing break.exp "breako2" {break.c break1.c} {debug nowarnings optimize=-O2}] } {
 851     return -1
 852 }
 853
 854 #
 855 # test break at function
 856 #
 857 gdb_test "break main" \
 858     "Breakpoint.*at.* file .*, line.*" \
 859     "breakpoint function, optimized file"
 860
 861 #
 862 # test break at function
 863 #
 864 gdb_test "break marker4" \
 865     "Breakpoint.*at.* file .*$srcfile1, line.*" \
 866     "breakpoint small function, optimized file"
 867
 868 #
 869 # run until the breakpoint at main is hit. For non-stubs-using targets.
 870 #
 871 gdb_run_cmd
 872 gdb_expect {
 873     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 874         pass "run until function breakpoint, optimized file"
 875     }
 876     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
 877         pass "run until function breakpoint, optimized file (code motion)"
 878     }
 879     -re "$gdb_prompt $" {
 880         fail "run until function breakpoint, optimized file"
 881     }
 882     timeout {
 883         fail "run until function breakpoint, optimized file (timeout)"
 884     }
 885 }
 886
 887 #
 888 # run until the breakpoint at a small function
 889 #
 890
 891 #
 892 # Add a second pass pattern.  The behavior differs here between stabs
 893 # and dwarf for one-line functions.  Stabs preserves two line symbols
 894 # (one before the prologue and one after) with the same line number,
 895 # but dwarf regards these as duplicates and discards one of them.
 896 # Therefore the address after the prologue (where the breakpoint is)
 897 # has no exactly matching line symbol, and GDB reports the breakpoint
 898 # as if it were in the middle of a line rather than at the beginning.
 899
 900 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
 901 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
 902
 903 gdb_test_multiple "continue" \
 904     "run until breakpoint set at small function, optimized file" {
 905         -re "Breakpoint $decimal, marker4 \\(d=(d@entry=)?177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 906             pass "run until breakpoint set at small function, optimized file"
 907         }
 908         -re "Breakpoint $decimal, $hex in marker4 \\(d=(d@entry=)?177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 909             pass "run until breakpoint set at small function, optimized file"
 910         }
 911         -re "Breakpoint $decimal, marker4 \\(d=(d@entry=)?177601976\\) at .*$srcfile1:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*" {
 912             # marker4() is defined at line 46 when compiled with -DPROTOTYPES
 913             pass "run until breakpoint set at small function, optimized file (line bp_location14)"
 914         }
 915         -re "Breakpoint $decimal, factorial \\(.*\\) .*\{\r\n$gdb_prompt" {
 916             # GCC 4.3 emits bad line number information - see gcc/36748.
 917             if { [test_compiler_info "gcc-4-3-*"] } {
 918                 setup_xfail *-*-*
 919             }
 920             fail "run until breakpoint set at small function, optimized file"
 921         }
 922     }
 923
 924 clean_restart breako2
 925
 926 #
 927 # test that 'rbreak' on a symbol that may be from a shared library doesn't
 928 # cause a "Junk at end of arguments." error.
 929 #
 930 # On x86 GNU/Linux, this test will choke on e.g. __libc_start_main@plt.
 931 #
 932 # Note that this test won't necessarily choke on all targets even if
 933 # all the rbreak issue is present.  rbreak needs to match and set a
 934 # breakpoint on a symbol causes 'break' to choke.
 935 #
 936
 937 gdb_test_no_output "set breakpoint pending on" "rbreak junk pending setup"
 938
 939 # We expect at least one breakpoint to be set when we "rbreak main".
 940 gdb_test "rbreak main" \
 941     ".*Breakpoint.*at.* file .*$srcfile, line.*" \
 942     "rbreak junk set breakpoint"
 943
 944 # Run to a breakpoint.  Fail if we see "Junk at end of arguments".
 945 gdb_run_cmd
 946 gdb_expect {
 947     -re "Junk at end of arguments" {
 948         fail "rbreak junk"
 949     }
 950     -re ".*Breakpoint \[0-9\]+,.*$gdb_prompt $" {
 951         pass "rbreak junk"
 952     }
 953     timeout {
 954         fail "rbreak junk (timeout)"
 955     }
 956 }
 957
 958
 959 # Reset the default arguments for VxWorks
 960 if [istarget "*-*-vxworks*"] {
 961     set timeout 10
 962     verbose "Timeout is now $timeout seconds" 2
 963     gdb_test_no_output "set args main"
 964 }