gdb/testsuite/gdb.base/break.exp

   1 #   Copyright 1988-2013 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 # This file was written by Rob Savoye. (rob@cygnus.com)
  17
  18 if { [prepare_for_testing break.exp "break" {break.c break1.c} {debug nowarnings}] } {
  19     return -1
  20 }
  21 set srcfile break.c
  22 set srcfile1 break1.c
  23 #
  24 # test simple breakpoint setting commands
  25 #
  26
  27 # Test deleting all breakpoints when there are none installed,
  28 # GDB should not prompt for confirmation.
  29 # Note that lib/gdb.exp provides a "delete_breakpoints" proc
  30 # for general use elsewhere.
  31
  32 send_gdb "delete breakpoints\n"
  33 gdb_expect {
  34      -re "Delete all breakpoints.*$" {
  35             send_gdb "y\n"
  36             gdb_expect {
  37                 -re "$gdb_prompt $" {
  38                     fail "Delete all breakpoints when none (unexpected prompt)"
  39                 }
  40                 timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
  41             }
  42         }
  43      -re ".*$gdb_prompt $"       { pass "Delete all breakpoints when none" }
  44     timeout                 { fail "Delete all breakpoints when none (timeout)" }
  45 }
  46
  47 #
  48 # test break at function
  49 #
  50 gdb_test "break main" \
  51     "Breakpoint.*at.* file .*$srcfile, line.*" \
  52     "breakpoint function"
  53
  54 #
  55 # test break at quoted function
  56 #
  57 gdb_test "break \"marker2\"" \
  58     "Breakpoint.*at.* file .*$srcfile1, line.*" \
  59     "breakpoint quoted function"
  60
  61 #
  62 # test break at function in file
  63 #
  64 gdb_test "break $srcfile:factorial" \
  65     "Breakpoint.*at.* file .*$srcfile, line.*" \
  66     "breakpoint function in file"
  67
  68 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  69
  70 #
  71 # test break at line number
  72 #
  73 # Note that the default source file is the last one whose source text
  74 # was printed.  For native debugging, before we've executed the
  75 # program, this is the file containing main, but for remote debugging,
  76 # it's wherever the processor was stopped when we connected to the
  77 # board.  So, to be sure, we do a list command.
  78 #
  79 gdb_test "list main" \
  80     ".*main \\(argc, argv, envp\\).*" \
  81     "use `list' to establish default source file"
  82 gdb_test "break $bp_location1" \
  83     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
  84     "breakpoint line number"
  85
  86 #
  87 # test duplicate breakpoint
  88 #
  89 gdb_test "break $bp_location1" \
  90     "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
  91     "breakpoint duplicate"
  92
  93 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
  94
  95 #
  96 # test break at line number in file
  97 #
  98 gdb_test "break $srcfile:$bp_location2" \
  99     "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
 100     "breakpoint line number in file"
 101
 102 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 103 set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]
 104
 105 #
 106 # Test putting a break at the start of a multi-line if conditional.
 107 # Verify the breakpoint was put at the start of the conditional.
 108 #
 109 gdb_test "break multi_line_if_conditional" \
 110     "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
 111     "breakpoint at start of multi line if conditional"
 112
 113 gdb_test "break multi_line_while_conditional" \
 114     "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
 115     "breakpoint at start of multi line while conditional"
 116
 117 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 118
 119 set main_line $bp_location6
 120
 121 if {$hp_aCC_compiler} {
 122     set proto "\\(int\\)"
 123 } else {
 124     set proto ""
 125 }
 126
 127 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
 128 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
 129 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
 130
 131 gdb_test "info break" \
 132     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 133 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 134 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
 135 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
 136 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 137 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 138 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
 139 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
 140 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
 141     "breakpoint info"
 142
 143 #
 144 # Test info breakpoint with arguments
 145 #
 146
 147 set see1 0
 148 set see2 0
 149 set see3 0
 150 set see4 0
 151 set see5 0
 152 set see6 0
 153
 154 gdb_test_multiple "info break 2 4 6" "info break 2 4 6" {
 155     -re "1\[\t \]+breakpoint *keep y\[^\r\n\]*:$main_line\[^\r\n\]*" {
 156         set see1 1
 157         exp_continue
 158     }
 159     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 160         set see2 1
 161         exp_continue
 162     }
 163     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 164         set see3 1
 165         exp_continue
 166     }
 167     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 168         set see4 1
 169         exp_continue
 170     }
 171     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 172         set see5 1
 173         exp_continue
 174     }
 175     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 176         set see6 1
 177         exp_continue
 178     }
 179     -re ".*$gdb_prompt $" {
 180         if { !$see1 && $see2 && !$see3 && $see4 && !$see5 && $see6 } then {
 181             pass "info break 2 4 6"
 182         } else {
 183             fail "info break 2 4 6"
 184         }
 185     }
 186 }
 187
 188 set see1 0
 189 set see2 0
 190 set see3 0
 191 set see4 0
 192 set see5 0
 193 set see6 0
 194
 195 gdb_test_multiple "info break 3-5" "info break 3-5" {
 196     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 197         set see1 1
 198         exp_continue
 199     }
 200     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 201         set see2 1
 202         exp_continue
 203     }
 204     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 205         set see3 1
 206         exp_continue
 207     }
 208     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 209         set see4 1
 210         exp_continue
 211     }
 212     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 213         set see5 1
 214         exp_continue
 215     }
 216     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 217         set see6 1
 218         exp_continue
 219     }
 220     -re ".*$gdb_prompt $" {
 221         if { !$see1 && !$see2 && $see3 && $see4 && $see5 && !$see6 } then {
 222             pass "info break 3-5"
 223         } else {
 224             fail "info break 3-5"
 225         }
 226     }
 227 }
 228
 229 #
 230 # Test disable/enable with arguments
 231 #
 232
 233 # Test with value history
 234
 235 gdb_test "print 1" "" ""
 236 gdb_test "print 2" "" ""
 237 gdb_test "print 3" "" ""
 238 gdb_test "print 4" "" ""
 239 gdb_test "print 5" "" ""
 240 gdb_test "print 6" "" ""
 241
 242 # $2 is 2 and $$ is 5
 243 gdb_test_no_output "disable \$2 \$\$" "disable using history values"
 244
 245 set see1 0
 246 set see2 0
 247 set see3 0
 248 set see4 0
 249 set see5 0
 250 set see6 0
 251
 252 gdb_test_multiple "info break" "check disable with history values" {
 253     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 254         set see1 1
 255         exp_continue
 256     }
 257     -re "2\[\t \]+breakpoint *keep n\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 258         set see2 1
 259         exp_continue
 260     }
 261     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 262         set see3 1
 263         exp_continue
 264     }
 265     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 266         set see4 1
 267         exp_continue
 268     }
 269     -re "5\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 270         set see5 1
 271         exp_continue
 272     }
 273     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 274         set see6 1
 275         exp_continue
 276     }
 277     -re ".*$gdb_prompt $" {
 278         if { $see1 && $see2 && $see3 && $see4 && $see5 && $see6 } then {
 279             pass "check disable with history values"
 280         } else {
 281             fail "check disable with history values"
 282         }
 283     }
 284 }
 285
 286 gdb_test "enable" "" ""
 287 gdb_test "set \$foo = 3" "" ""
 288 gdb_test "set \$bar = 6" "" ""
 289 gdb_test_no_output "disable \$foo \$bar" "disable with convenience values"
 290
 291 set see1 0
 292 set see2 0
 293 set see3 0
 294 set see4 0
 295 set see5 0
 296 set see6 0
 297
 298 gdb_test_multiple "info break" "check disable with convenience values" {
 299     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 300         set see1 1
 301         exp_continue
 302     }
 303     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 304         set see2 1
 305         exp_continue
 306     }
 307     -re "3\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 308         set see3 1
 309         exp_continue
 310     }
 311     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 312         set see4 1
 313         exp_continue
 314     }
 315     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 316         set see5 1
 317         exp_continue
 318     }
 319     -re "6\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 320         set see6 1
 321         exp_continue
 322     }
 323     -re ".*$gdb_prompt $" {
 324         if { $see1 && $see2 && $see3 && $see4 && $see5 && $see6 } then {
 325             pass "check disable with convenience values"
 326         } else {
 327             fail "check disable with convenience values"
 328         }
 329     }
 330 }
 331
 332 # test with bad values
 333
 334 gdb_test "enable" "" ""
 335 gdb_test "disable 10" "No breakpoint number 10." \
 336     "disable non-existent breakpoint 10"
 337
 338 gdb_test "set \$baz 1.234"
 339 gdb_test "disable \$baz" \
 340     "Convenience variable must have integer value.*" \
 341     "disable with non-integer convenience var"
 342 gdb_test "disable \$grbx" \
 343     "Convenience variable must have integer value.*" \
 344     "disable with non-existent convenience var"
 345 gdb_test "disable \$10" \
 346     "History has not yet reached .10." \
 347     "disable with non-existent history value"
 348 gdb_test "disable \$1foo" \
 349     "Convenience variable must have integer value.*" \
 350     "disable with badly formed history value"
 351
 352 # FIXME: The rest of this test doesn't work with anything that can't
 353 # handle arguments.
 354 # Huh? There doesn't *appear* to be anything that passes arguments
 355 # below.
 356
 357 #
 358 # run until the breakpoint at main is hit. For non-stubs-using targets.
 359 #
 360 gdb_run_cmd
 361 gdb_expect {
 362     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 363         pass "run until function breakpoint"
 364     }
 365     -re "$gdb_prompt $" {
 366         fail "run until function breakpoint"
 367     }
 368     timeout {
 369         fail "run until function breakpoint (timeout)"
 370     }
 371 }
 372
 373 # Test the 'list' commands sets current file for the 'break LINENO' command.
 374 set bp_marker1 [gdb_get_line_number "set breakpoint 16 here" ${srcfile1}]
 375 gdb_test "list marker1" ".*"
 376 gdb_test "break $bp_marker1" "Breakpoint \[0-9\]+ at 0x\[0-9a-f\]+: file .*${srcfile1}, line ${bp_marker1}\\." \
 377          "break lineno"
 378 gdb_test_no_output {delete $bpnum}
 379
 380 #
 381 # run until the breakpoint at a line number
 382 #
 383 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 384                         "run until breakpoint set at a line number"
 385
 386 #
 387 # Run until the breakpoint set in a function in a file
 388 #
 389 for {set i 6} {$i >= 1} {incr i -1} {
 390         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
 391                         "run until file:function($i) breakpoint"
 392 }
 393
 394 #
 395 # Run until the breakpoint set at a quoted function
 396 #
 397 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*" \
 398                 "run until quoted breakpoint"
 399 #
 400 # run until the file:function breakpoint at a line number in a file
 401 #
 402 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
 403                 "run until file:linenum breakpoint"
 404
 405 # Test break at offset +1
 406 set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
 407
 408 gdb_test "break +1" \
 409     "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
 410     "breakpoint offset +1"
 411
 412 # Check to see if breakpoint is hit when stepped onto
 413
 414 gdb_test "step" \
 415     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
 416     "step onto breakpoint"
 417
 418 # Check to see if breakpoint can be set on ending brace of function
 419 set bp_location10a [gdb_get_line_number "set breakpoint 10a here"]
 420
 421 gdb_test "break $bp_location10a" \
 422     "Breakpoint.*at.* file .*$srcfile, line $bp_location10a\\." \
 423     "setting breakpoint at }"
 424
 425 gdb_test "continue" \
 426     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10a.*$bp_location10a\[\t \]+}.*breakpoint 10a here.*" \
 427     "continue to breakpoint at }"
 428
 429 #
 430 # delete all breakpoints so we can start over, course this can be a test too
 431 #
 432 delete_breakpoints
 433
 434 #
 435 # test temporary breakpoint at function
 436 #
 437
 438 gdb_test "tbreak main" "Temporary breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 439
 440 #
 441 # test break at function in file
 442 #
 443
 444 gdb_test "tbreak $srcfile:factorial" "Temporary breakpoint.*at.* file .*$srcfile, line.*" \
 445         "Temporary breakpoint function in file"
 446
 447 #
 448 # test break at line number
 449 #
 450 gdb_test "tbreak $bp_location1" \
 451     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location1.*" \
 452     "Temporary breakpoint line number #1"
 453
 454 gdb_test "tbreak $bp_location6" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location6.*" "Temporary breakpoint line number #2"
 455
 456 #
 457 # test break at line number in file
 458 #
 459 gdb_test "tbreak $srcfile:$bp_location2" \
 460     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location2.*" \
 461     "Temporary breakpoint line number in file #1"
 462
 463 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
 464 gdb_test  "tbreak $srcfile:$bp_location11" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
 465
 466 #
 467 # check to see what breakpoints are set (temporary this time)
 468 #
 469 gdb_test "info break" "Num     Type.*Disp Enb Address.*What.*\[\r\n\]
 470 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 471 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
 472 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
 473 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
 474 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
 475 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
 476     "Temporary breakpoint info"
 477
 478
 479 #***********
 480
 481 # Verify that catchpoints for fork, vfork and exec don't trigger
 482 # inappropriately.  (There are no calls to those system functions
 483 # in this test program.)
 484 #
 485 if ![runto_main] then { fail "break tests suppressed" }
 486
 487 gdb_test "catch" \
 488     "Catch requires an event name." \
 489     "catch requires an event name"
 490
 491
 492 set name "set catch fork, never expected to trigger"
 493 gdb_test_multiple "catch fork" "$name" {
 494     -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $" {
 495         pass $name
 496     }
 497     -re "Catch of fork not yet implemented.*$gdb_prompt $" {
 498         pass $name
 499     }
 500 }
 501
 502
 503 # If we are on HP-UX 10.20, we expect an error message to be
 504 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 505 # because on HP-UX 10.20, we cannot catch vfork events.
 506
 507 set name "set catch vfork, never expected to trigger"
 508
 509 if [istarget "hppa*-hp-hpux10.20"] then {
 510     gdb_test "catch vfork" \
 511         "Catch of vfork events not supported on HP-UX 10.20..*" \
 512         "$name"
 513 } else {
 514     gdb_test_multiple "catch vfork" "$name" {
 515         -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $" {
 516             pass $name
 517         }
 518         -re "Catch of vfork not yet implemented.*$gdb_prompt $" {
 519             pass $name
 520         }
 521     }
 522 }
 523
 524 set name "set catch exec, never expected to trigger"
 525 gdb_test_multiple "catch exec" "$name" {
 526     -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $" {
 527         pass $name
 528     }
 529     -re "Catch of exec not yet implemented.*$gdb_prompt $" {
 530         pass $name
 531     }
 532 }
 533
 534 # Verify that GDB responds gracefully when asked to set a breakpoint
 535 # on a nonexistent source line.
 536 #
 537 gdb_test_no_output "set breakpoint pending off"
 538 gdb_test "break 999" \
 539     "No line 999 in the current file." \
 540     "break on non-existent source line"
 541
 542 # Run to the desired default location. If not positioned here, the
 543 # tests below don't work.
 544 #
 545 gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" \
 546     "until bp_location1"
 547
 548 # Verify that GDB allows one to just say "break", which is treated
 549 # as the "default" breakpoint.  Note that GDB gets cute when printing
 550 # the informational message about other breakpoints at the same
 551 # location.  We'll hit that bird with this stone too.
 552 #
 553 gdb_test "break" "Breakpoint \[0-9\]*.*" \
 554     "break on default location, 1st time"
 555
 556 gdb_test "break" \
 557     "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 558     "break on default location, 2nd time"
 559
 560 gdb_test "break" \
 561     "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 562     "break on default location, 3rd time"
 563
 564 gdb_test "break" \
 565     "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 566     "break on default location, 4th time"
 567
 568 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 569 # "silent" about its triggering.
 570 #
 571 if ![runto_main] then { fail "break tests suppressed" }
 572
 573 gdb_test_multiple "break $bp_location1" \
 574     "set to-be-silent break bp_location1" {
 575         -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $" {
 576             pass "set to-be-silent break bp_location1"
 577         }
 578     }
 579
 580 gdb_test "commands $expect_out(1,string)\nsilent\nend" ">end" "set silent break bp_location1"
 581
 582 gdb_test "info break $expect_out(1,string)" \
 583     "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*" \
 584     "info silent break bp_location1"
 585
 586 gdb_test "continue" "Continuing." \
 587     "hit silent break bp_location1"
 588
 589 gdb_test "bt" "#0  main .* at .*:$bp_location1.*" \
 590     "stopped for silent break bp_location1"
 591
 592 # Verify that GDB can at least parse a breakpoint with the
 593 # "thread" keyword.  (We won't attempt to test here that a
 594 # thread-specific breakpoint really triggers appropriately.
 595 # The gdb.threads subdirectory contains tests for that.)
 596 #
 597 set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
 598 gdb_test "break $bp_location12 thread 999" "Unknown thread 999.*" \
 599     "thread-specific breakpoint on non-existent thread disallowed"
 600
 601 gdb_test "break $bp_location12 thread foo" \
 602     "Junk after thread keyword.*" \
 603     "thread-specific breakpoint on bogus thread ID disallowed"
 604
 605 # Verify that GDB responds gracefully to a breakpoint command with
 606 # trailing garbage.
 607 #
 608 gdb_test "break $bp_location12 foo" \
 609     "malformed linespec error: unexpected string, \"foo\".*" \
 610     "breakpoint with trailing garbage disallowed"
 611
 612 # Verify that GDB responds gracefully to a "clear" command that has
 613 # no matching breakpoint.  (First, get us off the current source line,
 614 # which we know has a breakpoint.)
 615 #
 616 gdb_test "next" "marker1.*" "step over breakpoint"
 617
 618 gdb_test "clear 81" "No breakpoint at 81.*" \
 619     "clear line has no breakpoint disallowed"
 620
 621 gdb_test "clear" "No breakpoint at this line.*" \
 622     "clear current line has no breakpoint disallowed"
 623
 624 # Verify that we can set and clear multiple breakpoints.
 625 #
 626 # We don't test that it deletes the correct breakpoints.  We do at
 627 # least test that it deletes more than one breakpoint.
 628 #
 629 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 630 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 631 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 632
 633 # Verify that a breakpoint can be set via a convenience variable.
 634 #
 635 gdb_test_no_output "set \$foo=$bp_location11" \
 636     "set convenience variable \$foo to bp_location11"
 637
 638 gdb_test "break \$foo" \
 639     "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*" \
 640     "set breakpoint via convenience variable"
 641
 642 # Verify that GDB responds gracefully to an attempt to set a
 643 # breakpoint via a convenience variable whose type is not integer.
 644 #
 645 gdb_test_no_output "set \$foo=81.5" \
 646     "set convenience variable \$foo to 81.5"
 647
 648 gdb_test "break \$foo" \
 649     "Convenience variables used in line specs must have integer values.*" \
 650     "set breakpoint via non-integer convenience variable disallowed"
 651
 652 # Verify that we can set and trigger a breakpoint in a user-called function.
 653 #
 654 gdb_test "break marker2" \
 655     "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*" \
 656     "set breakpoint on to-be-called function"
 657
 658 gdb_test "print marker2(99)" \
 659     "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.*" \
 660     "hit breakpoint on called function"
 661
 662 # As long as we're stopped (breakpointed) in a called function,
 663 # verify that we can successfully backtrace & such from here.
 664 #
 665 # In this and the following test, the _sr4export check apparently is needed
 666 # for hppa*-*-hpux.
 667 #
 668 gdb_test_multiple "bt" "backtrace while in called function" {
 669     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $" {
 670         pass "backtrace while in called function"
 671     }
 672     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $" {
 673         pass "backtrace while in called function"
 674     }
 675 }
 676
 677 # Return from the called function.  For remote targets, it's important to do
 678 # this before runto_main, which otherwise may silently stop on the dummy
 679 # breakpoint inserted by GDB at the program's entry point.
 680 #
 681 gdb_test_multiple "finish" "finish from called function" {
 682     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $" {
 683         pass "finish from called function"
 684     }
 685     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $" {
 686         pass "finish from called function"
 687     }
 688     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $" {
 689         pass "finish from called function"
 690     }
 691 }
 692
 693 # Verify that GDB responds gracefully to a "finish" command with
 694 # arguments.
 695 #
 696 if ![runto_main] then { fail "break tests suppressed" }
 697
 698 send_gdb "finish 123\n"
 699 gdb_expect {
 700   -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
 701           {pass "finish with arguments disallowed"}
 702   -re "$gdb_prompt $"\
 703           {fail "finish with arguments disallowed"}
 704   timeout {fail "(timeout) finish with arguments disallowed"}
 705 }
 706
 707 # Verify that GDB responds gracefully to a request to "finish" from
 708 # the outermost frame.  On a stub that never exits, this will just
 709 # run to the stubs routine, so we don't get this error...  Thus the
 710 # second condition.
 711 #
 712
 713 gdb_test_multiple "finish" "finish from outermost frame disallowed" {
 714     -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $" {
 715         pass "finish from outermost frame disallowed"
 716     }
 717     -re "Run till exit from.*\r\n$gdb_prompt $" {
 718         pass "finish from outermost frame disallowed"
 719     }
 720 }
 721
 722 # Verify that we can explicitly ask GDB to stop on all shared library
 723 # events, and that it does so.
 724 #
 725 if [istarget "hppa*-*-hpux*"] then {
 726     if ![runto_main] then { fail "break tests suppressed" }
 727
 728     gdb_test_no_output "set stop-on-solib-events 1" \
 729         "set stop-on-solib-events"
 730
 731     gdb_test "run" \
 732         "Stopped due to shared library event.*" \
 733         "triggered stop-on-solib-events" \
 734         "Start it from the beginning.*y or n. $" \
 735         "y"
 736
 737     gdb_test_no_output "set stop-on-solib-events 0" \
 738         "reset stop-on-solib-events"
 739 }
 740
 741 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 742 # gracefully responds to requests to create them.
 743 #
 744 if [istarget "hppa*-*-hpux*"] then {
 745     if ![runto_main] then { fail "break tests suppressed" }
 746
 747     gdb_test "hbreak" \
 748         "No hardware breakpoint support in the target.*" \
 749         "hw breaks disallowed"
 750
 751     gdb_test "thbreak" \
 752         "No hardware breakpoint support in the target.*" \
 753         "temporary hw breaks disallowed"
 754 }
 755
 756 #********
 757
 758
 759 #
 760 # Test "next" over recursive function call.
 761 #
 762
 763 proc test_next_with_recursion {} {
 764     global gdb_prompt
 765     global decimal
 766     global binfile
 767
 768     gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 769     delete_breakpoints
 770
 771     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 772
 773     # Run until we call factorial with 6
 774
 775     gdb_run_cmd
 776     gdb_expect {
 777         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 778         -re ".*$gdb_prompt $" {
 779             fail "run to factorial(6)"
 780             gdb_suppress_tests
 781         }
 782         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 783     }
 784
 785     # Continue until we call factorial recursively with 5.
 786
 787     if [gdb_test "continue" \
 788         "Continuing.*Break.* factorial .value=5. .*" \
 789         "continue to factorial(5)"] then { gdb_suppress_tests }
 790
 791     # Do a backtrace just to confirm how many levels deep we are.
 792
 793     if [gdb_test "backtrace" \
 794         "#0\[ \t\]+ factorial .value=5..*" \
 795         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 796
 797     # Now a "next" should position us at the recursive call, which
 798     # we will be performing with 4.
 799
 800     if [gdb_test "next" \
 801         ".* factorial .value - 1.;.*" \
 802         "next to recursive call"] then { gdb_suppress_tests }
 803
 804     # Disable the breakpoint at the entry to factorial by deleting them all.
 805     # The "next" should run until we return to the next line from this
 806     # recursive call to factorial with 4.
 807     # Buggy versions of gdb will stop instead at the innermost frame on
 808     # the line where we are trying to "next" to.
 809
 810     delete_breakpoints
 811
 812     if [istarget "mips*tx39-*"] {
 813         set timeout 60
 814     }
 815     # We used to set timeout here for all other targets as well.  This
 816     # is almost certainly wrong.  The proper timeout depends on the
 817     # target system in use, and how we communicate with it, so there
 818     # is no single value appropriate for all targets.  The timeout
 819     # should be established by the Dejagnu config file(s) for the
 820     # board, and respected by the test suite.
 821     #
 822     # For example, if I'm running GDB over an SSH tunnel talking to a
 823     # portmaster in California talking to an ancient 68k board running
 824     # a crummy ROM monitor (a situation I can only wish were
 825     # hypothetical), then I need a large timeout.  But that's not the
 826     # kind of knowledge that belongs in this file.
 827
 828     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 829             "next over recursive call"
 830
 831     # OK, we should be back in the same stack frame we started from.
 832     # Do a backtrace just to confirm.
 833
 834     set result [gdb_test "backtrace" \
 835             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 836             "backtrace from factorial(5.1)"]
 837     if { $result != 0 } { gdb_suppress_tests }
 838
 839     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 840   gdb_continue_to_end "recursive next test"
 841    gdb_stop_suppressing_tests
 842 }
 843
 844 test_next_with_recursion
 845
 846
 847 #********
 848
 849 # build a new file with optimization enabled so that we can try breakpoints
 850 # on targets with optimized prologues
 851
 852 if { [prepare_for_testing break.exp "breako2" {break.c break1.c} {debug nowarnings optimize=-O2}] } {
 853     return -1
 854 }
 855
 856 #
 857 # test break at function
 858 #
 859 gdb_test "break main" \
 860     "Breakpoint.*at.* file .*, line.*" \
 861     "breakpoint function, optimized file"
 862
 863 #
 864 # test break at function
 865 #
 866 gdb_test "break marker4" \
 867     "Breakpoint.*at.* file .*$srcfile1, line.*" \
 868     "breakpoint small function, optimized file"
 869
 870 #
 871 # run until the breakpoint at main is hit. For non-stubs-using targets.
 872 #
 873 gdb_run_cmd
 874 gdb_expect {
 875     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 876         pass "run until function breakpoint, optimized file"
 877     }
 878     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
 879         pass "run until function breakpoint, optimized file (code motion)"
 880     }
 881     -re "$gdb_prompt $" {
 882         fail "run until function breakpoint, optimized file"
 883     }
 884     timeout {
 885         fail "run until function breakpoint, optimized file (timeout)"
 886     }
 887 }
 888
 889 #
 890 # run until the breakpoint at a small function
 891 #
 892
 893 #
 894 # Add a second pass pattern.  The behavior differs here between stabs
 895 # and dwarf for one-line functions.  Stabs preserves two line symbols
 896 # (one before the prologue and one after) with the same line number,
 897 # but dwarf regards these as duplicates and discards one of them.
 898 # Therefore the address after the prologue (where the breakpoint is)
 899 # has no exactly matching line symbol, and GDB reports the breakpoint
 900 # as if it were in the middle of a line rather than at the beginning.
 901
 902 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
 903 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
 904
 905 gdb_test_multiple "continue" \
 906     "run until breakpoint set at small function, optimized file" {
 907         -re "Breakpoint $decimal, marker4 \\(d=(d@entry=)?177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 908             pass "run until breakpoint set at small function, optimized file"
 909         }
 910         -re "Breakpoint $decimal, $hex in marker4 \\(d=(d@entry=)?177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 911             pass "run until breakpoint set at small function, optimized file"
 912         }
 913         -re "Breakpoint $decimal, marker4 \\(d=(d@entry=)?177601976\\) at .*$srcfile1:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*" {
 914             # marker4() is defined at line 46 when compiled with -DPROTOTYPES
 915             pass "run until breakpoint set at small function, optimized file (line bp_location14)"
 916         }
 917         -re "Breakpoint $decimal, factorial \\(.*\\) .*\{\r\n$gdb_prompt" {
 918             # GCC 4.3 emits bad line number information - see gcc/36748.
 919             if { [test_compiler_info "gcc-4-3-*"] } {
 920                 setup_xfail *-*-*
 921             }
 922             fail "run until breakpoint set at small function, optimized file"
 923         }
 924     }
 925
 926 clean_restart breako2
 927
 928 #
 929 # test that 'rbreak' on a symbol that may be from a shared library doesn't
 930 # cause a "Junk at end of arguments." error.
 931 #
 932 # On x86 GNU/Linux, this test will choke on e.g. __libc_start_main@plt.
 933 #
 934 # Note that this test won't necessarily choke on all targets even if
 935 # all the rbreak issue is present.  rbreak needs to match and set a
 936 # breakpoint on a symbol causes 'break' to choke.
 937 #
 938
 939 gdb_test_no_output "set breakpoint pending on" "rbreak junk pending setup"
 940
 941 # We expect at least one breakpoint to be set when we "rbreak main".
 942 gdb_test "rbreak main" \
 943     ".*Breakpoint.*at.* file .*$srcfile, line.*" \
 944     "rbreak junk set breakpoint"
 945
 946 # Run to a breakpoint.  Fail if we see "Junk at end of arguments".
 947 gdb_run_cmd
 948 gdb_expect {
 949     -re "Junk at end of arguments" {
 950         fail "rbreak junk"
 951     }
 952     -re ".*Breakpoint \[0-9\]+,.*$gdb_prompt $" {
 953         pass "rbreak junk"
 954     }
 955     timeout {
 956         fail "rbreak junk (timeout)"
 957     }
 958 }
 959
 960
 961 # Reset the default arguments for VxWorks
 962 if [istarget "*-*-vxworks*"] {
 963     set timeout 10
 964     verbose "Timeout is now $timeout seconds" 2
 965     gdb_test_no_output "set args main"
 966 }