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_location6 [gdb_get_line_number "set breakpoint 6 here"]
 119
 120 set main_line $bp_location6
 121
 122 if {$hp_aCC_compiler} {
 123     set proto "\\(int\\)"
 124 } else {
 125     set proto ""
 126 }
 127
 128 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
 129 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
 130 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
 131
 132 gdb_test "info break" \
 133     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 134 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 135 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
 136 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
 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_location1.*
 139 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
 140 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
 141 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
 142     "breakpoint info"
 143
 144 #
 145 # Test info breakpoint with arguments
 146 #
 147
 148 set see1 0
 149 set see2 0
 150 set see3 0
 151 set see4 0
 152 set see5 0
 153 set see6 0
 154
 155 gdb_test_multiple "info break 2 4 6" "info break 2 4 6" {
 156     -re "1\[\t \]+breakpoint *keep y\[^\r\n\]*:$main_line\[^\r\n\]*" {
 157         set see1 1
 158         exp_continue
 159     }
 160     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 161         set see2 1
 162         exp_continue
 163     }
 164     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 165         set see3 1
 166         exp_continue
 167     }
 168     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 169         set see4 1
 170         exp_continue
 171     }
 172     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 173         set see5 1
 174         exp_continue
 175     }
 176     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 177         set see6 1
 178         exp_continue
 179     }
 180     -re ".*$gdb_prompt $" {
 181         if { !$see1 && $see2 && !$see3 && $see4 && !$see5 && $see6 } then {
 182             pass "info break 2 4 6"
 183         } else {
 184             fail "info break 2 4 6"
 185         }
 186     }
 187 }
 188
 189 set see1 0
 190 set see2 0
 191 set see3 0
 192 set see4 0
 193 set see5 0
 194 set see6 0
 195
 196 gdb_test_multiple "info break 3-5" "info break 3-5" {
 197     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 198         set see1 1
 199         exp_continue
 200     }
 201     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 202         set see2 1
 203         exp_continue
 204     }
 205     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 206         set see3 1
 207         exp_continue
 208     }
 209     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 210         set see4 1
 211         exp_continue
 212     }
 213     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 214         set see5 1
 215         exp_continue
 216     }
 217     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 218         set see6 1
 219         exp_continue
 220     }
 221     -re ".*$gdb_prompt $" {
 222         if { !$see1 && !$see2 && $see3 && $see4 && $see5 && !$see6 } then {
 223             pass "info break 3-5"
 224         } else {
 225             fail "info break 3-5"
 226         }
 227     }
 228 }
 229
 230 #
 231 # Test disable/enable with arguments
 232 #
 233
 234 # Test with value history
 235
 236 gdb_test "print 1" "" ""
 237 gdb_test "print 2" "" ""
 238 gdb_test "print 3" "" ""
 239 gdb_test "print 4" "" ""
 240 gdb_test "print 5" "" ""
 241 gdb_test "print 6" "" ""
 242
 243 # $2 is 2 and $$ is 5
 244 gdb_test_no_output "disable \$2 \$\$" "disable using history values"
 245
 246 set see1 0
 247 set see2 0
 248 set see3 0
 249 set see4 0
 250 set see5 0
 251 set see6 0
 252
 253 gdb_test_multiple "info break" "check disable with history values" {
 254     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 255         set see1 1
 256         exp_continue
 257     }
 258     -re "2\[\t \]+breakpoint *keep n\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 259         set see2 1
 260         exp_continue
 261     }
 262     -re "3\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 263         set see3 1
 264         exp_continue
 265     }
 266     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 267         set see4 1
 268         exp_continue
 269     }
 270     -re "5\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 271         set see5 1
 272         exp_continue
 273     }
 274     -re "6\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 275         set see6 1
 276         exp_continue
 277     }
 278     -re ".*$gdb_prompt $" {
 279         if { $see1 && $see2 && $see3 && $see4 && $see5 && $see6 } then {
 280             pass "check disable with history values"
 281         } else {
 282             fail "check disable with history values"
 283         }
 284     }
 285 }
 286
 287 gdb_test "enable" "" ""
 288 gdb_test "set \$foo = 3" "" ""
 289 gdb_test "set \$bar = 6" "" ""
 290 gdb_test_no_output "disable \$foo \$bar" "disable with convenience values"
 291
 292 set see1 0
 293 set see2 0
 294 set see3 0
 295 set see4 0
 296 set see5 0
 297 set see6 0
 298
 299 gdb_test_multiple "info break" "check disable with convenience values" {
 300     -re "1\[\t \]+breakpoint *keep y.* in main at .*:$main_line\[^\r\n\]*" {
 301         set see1 1
 302         exp_continue
 303     }
 304     -re "2\[\t \]+breakpoint *keep y\[^\r\n\]* in marker2 at \[^\r\n\]*" {
 305         set see2 1
 306         exp_continue
 307     }
 308     -re "3\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location7\[^\r\n\]*" {
 309         set see3 1
 310         exp_continue
 311     }
 312     -re "4\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 313         set see4 1
 314         exp_continue
 315     }
 316     -re "5\[\t \]+breakpoint *keep y\[^\r\n\]*$bp_location1\[^\r\n\]*" {
 317         set see5 1
 318         exp_continue
 319     }
 320     -re "6\[\t \]+breakpoint *keep n\[^\r\n\]*$bp_location2\[^\r\n\]*" {
 321         set see6 1
 322         exp_continue
 323     }
 324     -re ".*$gdb_prompt $" {
 325         if { $see1 && $see2 && $see3 && $see4 && $see5 && $see6 } then {
 326             pass "check disable with convenience values"
 327         } else {
 328             fail "check disable with convenience values"
 329         }
 330     }
 331 }
 332
 333 # test with bad values
 334
 335 gdb_test "enable" "" ""
 336 gdb_test "disable 10" "No breakpoint number 10." \
 337     "disable non-existent breakpoint 10"
 338
 339 gdb_test "set \$baz 1.234"
 340 gdb_test "disable \$baz" \
 341     "Convenience variable must have integer value.*" \
 342     "disable with non-integer convenience var"
 343 gdb_test "disable \$grbx" \
 344     "Convenience variable must have integer value.*" \
 345     "disable with non-existent convenience var"
 346 gdb_test "disable \$10" \
 347     "History has not yet reached .10." \
 348     "disable with non-existent history value"
 349 gdb_test "disable \$1foo" \
 350     "Convenience variable must have integer value.*" \
 351     "disable with badly formed history value"
 352
 353 # FIXME: The rest of this test doesn't work with anything that can't
 354 # handle arguments.
 355 # Huh? There doesn't *appear* to be anything that passes arguments
 356 # below.
 357
 358 #
 359 # run until the breakpoint at main is hit. For non-stubs-using targets.
 360 #
 361 gdb_run_cmd
 362 gdb_expect {
 363     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 364         pass "run until function breakpoint"
 365     }
 366     -re "$gdb_prompt $" {
 367         fail "run until function breakpoint"
 368     }
 369     timeout {
 370         fail "run until function breakpoint (timeout)"
 371     }
 372 }
 373
 374 # Test the 'list' commands sets current file for the 'break LINENO' command.
 375 set bp_marker1 [gdb_get_line_number "set breakpoint 16 here" ${srcfile1}]
 376 gdb_test "list marker1" ".*"
 377 gdb_test "break $bp_marker1" "Breakpoint \[0-9\]+ at 0x\[0-9a-f\]+: file .*${srcfile1}, line ${bp_marker1}\\." \
 378          "break lineno"
 379 gdb_test_no_output {delete $bpnum}
 380
 381 #
 382 # run until the breakpoint at a line number
 383 #
 384 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 385                         "run until breakpoint set at a line number"
 386
 387 #
 388 # Run until the breakpoint set in a function in a file
 389 #
 390 for {set i 6} {$i >= 1} {incr i -1} {
 391         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
 392                         "run until file:function($i) breakpoint"
 393 }
 394
 395 #
 396 # Run until the breakpoint set at a quoted function
 397 #
 398 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*" \
 399                 "run until quoted breakpoint"
 400 #
 401 # run until the file:function breakpoint at a line number in a file
 402 #
 403 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
 404                 "run until file:linenum breakpoint"
 405
 406 # Test break at offset +1
 407 set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
 408
 409 gdb_test "break +1" \
 410     "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
 411     "breakpoint offset +1"
 412
 413 # Check to see if breakpoint is hit when stepped onto
 414
 415 gdb_test "step" \
 416     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
 417     "step onto breakpoint"
 418
 419 # Check to see if breakpoint can be set on ending brace of function
 420 set bp_location10a [gdb_get_line_number "set breakpoint 10a here"]
 421
 422 gdb_test "break $bp_location10a" \
 423     "Breakpoint.*at.* file .*$srcfile, line $bp_location10a\\." \
 424     "setting breakpoint at }"
 425
 426 gdb_test "continue" \
 427     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10a.*$bp_location10a\[\t \]+}.*breakpoint 10a here.*" \
 428     "continue to breakpoint at }"
 429
 430 #
 431 # delete all breakpoints so we can start over, course this can be a test too
 432 #
 433 delete_breakpoints
 434
 435 #
 436 # test temporary breakpoint at function
 437 #
 438
 439 gdb_test "tbreak main" "Temporary breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 440
 441 #
 442 # test break at function in file
 443 #
 444
 445 gdb_test "tbreak $srcfile:factorial" "Temporary breakpoint.*at.* file .*$srcfile, line.*" \
 446         "Temporary breakpoint function in file"
 447
 448 #
 449 # test break at line number
 450 #
 451 gdb_test "tbreak $bp_location1" \
 452     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location1.*" \
 453     "Temporary breakpoint line number #1"
 454
 455 gdb_test "tbreak $bp_location6" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location6.*" "Temporary breakpoint line number #2"
 456
 457 #
 458 # test break at line number in file
 459 #
 460 gdb_test "tbreak $srcfile:$bp_location2" \
 461     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location2.*" \
 462     "Temporary breakpoint line number in file #1"
 463
 464 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
 465 gdb_test  "tbreak $srcfile:$bp_location11" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
 466
 467 #
 468 # check to see what breakpoints are set (temporary this time)
 469 #
 470 gdb_test "info break" "Num     Type.*Disp Enb Address.*What.*\[\r\n\]
 471 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 472 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
 473 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
 474 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
 475 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
 476 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
 477     "Temporary breakpoint info"
 478
 479
 480 #***********
 481
 482 # Verify that catchpoints for fork, vfork and exec don't trigger
 483 # inappropriately.  (There are no calls to those system functions
 484 # in this test program.)
 485 #
 486 if ![runto_main] then { fail "break tests suppressed" }
 487
 488 gdb_test "catch" \
 489     "Catch requires an event name." \
 490     "catch requires an event name"
 491
 492
 493 set name "set catch fork, never expected to trigger"
 494 gdb_test_multiple "catch fork" "$name" {
 495     -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $" {
 496         pass $name
 497     }
 498     -re "Catch of fork not yet implemented.*$gdb_prompt $" {
 499         pass $name
 500     }
 501 }
 502
 503
 504 # If we are on HP-UX 10.20, we expect an error message to be
 505 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 506 # because on HP-UX 10.20, we cannot catch vfork events.
 507
 508 set name "set catch vfork, never expected to trigger"
 509
 510 if [istarget "hppa*-hp-hpux10.20"] then {
 511     gdb_test "catch vfork" \
 512         "Catch of vfork events not supported on HP-UX 10.20..*" \
 513         "$name"
 514 } else {
 515     gdb_test_multiple "catch vfork" "$name" {
 516         -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $" {
 517             pass $name
 518         }
 519         -re "Catch of vfork not yet implemented.*$gdb_prompt $" {
 520             pass $name
 521         }
 522     }
 523 }
 524
 525 set name "set catch exec, never expected to trigger"
 526 gdb_test_multiple "catch exec" "$name" {
 527     -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $" {
 528         pass $name
 529     }
 530     -re "Catch of exec not yet implemented.*$gdb_prompt $" {
 531         pass $name
 532     }
 533 }
 534
 535 # Verify that GDB responds gracefully when asked to set a breakpoint
 536 # on a nonexistent source line.
 537 #
 538 gdb_test_no_output "set breakpoint pending off"
 539 gdb_test "break 999" \
 540     "No line 999 in the current file." \
 541     "break on non-existent source line"
 542
 543 # Run to the desired default location. If not positioned here, the
 544 # tests below don't work.
 545 #
 546 gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" \
 547     "until bp_location1"
 548
 549 # Verify that GDB allows one to just say "break", which is treated
 550 # as the "default" breakpoint.  Note that GDB gets cute when printing
 551 # the informational message about other breakpoints at the same
 552 # location.  We'll hit that bird with this stone too.
 553 #
 554 gdb_test "break" "Breakpoint \[0-9\]*.*" \
 555     "break on default location, 1st time"
 556
 557 gdb_test "break" \
 558     "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 559     "break on default location, 2nd time"
 560
 561 gdb_test "break" \
 562     "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 563     "break on default location, 3rd time"
 564
 565 gdb_test "break" \
 566     "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 567     "break on default location, 4th time"
 568
 569 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 570 # "silent" about its triggering.
 571 #
 572 if ![runto_main] then { fail "break tests suppressed" }
 573
 574 gdb_test_multiple "break $bp_location1" \
 575     "set to-be-silent break bp_location1" {
 576         -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $" {
 577             pass "set to-be-silent break bp_location1"
 578         }
 579     }
 580
 581 gdb_test "commands $expect_out(1,string)\nsilent\nend" ">end" "set silent break bp_location1"
 582
 583 gdb_test "info break $expect_out(1,string)" \
 584     "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*" \
 585     "info silent break bp_location1"
 586
 587 gdb_test "continue" "Continuing." \
 588     "hit silent break bp_location1"
 589
 590 gdb_test "bt" "#0  main .* at .*:$bp_location1.*" \
 591     "stopped for silent break bp_location1"
 592
 593 # Verify that GDB can at least parse a breakpoint with the
 594 # "thread" keyword.  (We won't attempt to test here that a
 595 # thread-specific breakpoint really triggers appropriately.
 596 # The gdb.threads subdirectory contains tests for that.)
 597 #
 598 set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
 599 gdb_test "break $bp_location12 thread 999" "Unknown thread 999.*" \
 600     "thread-specific breakpoint on non-existent thread disallowed"
 601
 602 gdb_test "break $bp_location12 thread foo" \
 603     "Junk after thread keyword.*" \
 604     "thread-specific breakpoint on bogus thread ID disallowed"
 605
 606 # Verify that GDB responds gracefully to a breakpoint command with
 607 # trailing garbage.
 608 #
 609 gdb_test "break $bp_location12 foo" \
 610     "malformed linespec error: unexpected string, \"foo\".*" \
 611     "breakpoint with trailing garbage disallowed"
 612
 613 # Verify that GDB responds gracefully to a "clear" command that has
 614 # no matching breakpoint.  (First, get us off the current source line,
 615 # which we know has a breakpoint.)
 616 #
 617 gdb_test "next" "marker1.*" "step over breakpoint"
 618
 619 gdb_test "clear 81" "No breakpoint at 81.*" \
 620     "clear line has no breakpoint disallowed"
 621
 622 gdb_test "clear" "No breakpoint at this line.*" \
 623     "clear current line has no breakpoint disallowed"
 624
 625 # Verify that we can set and clear multiple breakpoints.
 626 #
 627 # We don't test that it deletes the correct breakpoints.  We do at
 628 # least test that it deletes more than one breakpoint.
 629 #
 630 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 631 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 632 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 633
 634 # Verify that a breakpoint can be set via a convenience variable.
 635 #
 636 gdb_test_no_output "set \$foo=$bp_location11" \
 637     "set convenience variable \$foo to bp_location11"
 638
 639 gdb_test "break \$foo" \
 640     "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*" \
 641     "set breakpoint via convenience variable"
 642
 643 # Verify that GDB responds gracefully to an attempt to set a
 644 # breakpoint via a convenience variable whose type is not integer.
 645 #
 646 gdb_test_no_output "set \$foo=81.5" \
 647     "set convenience variable \$foo to 81.5"
 648
 649 gdb_test "break \$foo" \
 650     "Convenience variables used in line specs must have integer values.*" \
 651     "set breakpoint via non-integer convenience variable disallowed"
 652
 653 # Verify that we can set and trigger a breakpoint in a user-called function.
 654 #
 655 gdb_test "break marker2" \
 656     "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*" \
 657     "set breakpoint on to-be-called function"
 658
 659 gdb_test "print marker2(99)" \
 660     "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.*" \
 661     "hit breakpoint on called function"
 662
 663 # As long as we're stopped (breakpointed) in a called function,
 664 # verify that we can successfully backtrace & such from here.
 665 #
 666 # In this and the following test, the _sr4export check apparently is needed
 667 # for hppa*-*-hpux.
 668 #
 669 gdb_test_multiple "bt" "backtrace while in called function" {
 670     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $" {
 671         pass "backtrace while in called function"
 672     }
 673     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $" {
 674         pass "backtrace while in called function"
 675     }
 676 }
 677
 678 # Return from the called function.  For remote targets, it's important to do
 679 # this before runto_main, which otherwise may silently stop on the dummy
 680 # breakpoint inserted by GDB at the program's entry point.
 681 #
 682 gdb_test_multiple "finish" "finish from called function" {
 683     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $" {
 684         pass "finish from called function"
 685     }
 686     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $" {
 687         pass "finish from called function"
 688     }
 689     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $" {
 690         pass "finish from called function"
 691     }
 692 }
 693
 694 # Verify that GDB responds gracefully to a "finish" command with
 695 # arguments.
 696 #
 697 if ![runto_main] then { fail "break tests suppressed" }
 698
 699 send_gdb "finish 123\n"
 700 gdb_expect {
 701   -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
 702           {pass "finish with arguments disallowed"}
 703   -re "$gdb_prompt $"\
 704           {fail "finish with arguments disallowed"}
 705   timeout {fail "(timeout) finish with arguments disallowed"}
 706 }
 707
 708 # Verify that GDB responds gracefully to a request to "finish" from
 709 # the outermost frame.  On a stub that never exits, this will just
 710 # run to the stubs routine, so we don't get this error...  Thus the
 711 # second condition.
 712 #
 713
 714 gdb_test_multiple "finish" "finish from outermost frame disallowed" {
 715     -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $" {
 716         pass "finish from outermost frame disallowed"
 717     }
 718     -re "Run till exit from.*\r\n$gdb_prompt $" {
 719         pass "finish from outermost frame disallowed"
 720     }
 721 }
 722
 723 # Verify that we can explicitly ask GDB to stop on all shared library
 724 # events, and that it does so.
 725 #
 726 if [istarget "hppa*-*-hpux*"] then {
 727     if ![runto_main] then { fail "break tests suppressed" }
 728
 729     gdb_test_no_output "set stop-on-solib-events 1" \
 730         "set stop-on-solib-events"
 731
 732     gdb_test "run" \
 733         "Stopped due to shared library event.*" \
 734         "triggered stop-on-solib-events" \
 735         "Start it from the beginning.*y or n. $" \
 736         "y"
 737
 738     gdb_test_no_output "set stop-on-solib-events 0" \
 739         "reset stop-on-solib-events"
 740 }
 741
 742 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 743 # gracefully responds to requests to create them.
 744 #
 745 if [istarget "hppa*-*-hpux*"] then {
 746     if ![runto_main] then { fail "break tests suppressed" }
 747
 748     gdb_test "hbreak" \
 749         "No hardware breakpoint support in the target.*" \
 750         "hw breaks disallowed"
 751
 752     gdb_test "thbreak" \
 753         "No hardware breakpoint support in the target.*" \
 754         "temporary hw breaks disallowed"
 755 }
 756
 757 #********
 758
 759
 760 #
 761 # Test "next" over recursive function call.
 762 #
 763
 764 proc test_next_with_recursion {} {
 765     global gdb_prompt
 766     global decimal
 767     global binfile
 768
 769     gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 770     delete_breakpoints
 771
 772     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 773
 774     # Run until we call factorial with 6
 775
 776     gdb_run_cmd
 777     gdb_expect {
 778         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 779         -re ".*$gdb_prompt $" {
 780             fail "run to factorial(6)";
 781             gdb_suppress_tests;
 782         }
 783         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 784     }
 785
 786     # Continue until we call factorial recursively with 5.
 787
 788     if [gdb_test "continue" \
 789         "Continuing.*Break.* factorial .value=5. .*" \
 790         "continue to factorial(5)"] then { gdb_suppress_tests }
 791
 792     # Do a backtrace just to confirm how many levels deep we are.
 793
 794     if [gdb_test "backtrace" \
 795         "#0\[ \t\]+ factorial .value=5..*" \
 796         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 797
 798     # Now a "next" should position us at the recursive call, which
 799     # we will be performing with 4.
 800
 801     if [gdb_test "next" \
 802         ".* factorial .value - 1.;.*" \
 803         "next to recursive call"] then { gdb_suppress_tests }
 804
 805     # Disable the breakpoint at the entry to factorial by deleting them all.
 806     # The "next" should run until we return to the next line from this
 807     # recursive call to factorial with 4.
 808     # Buggy versions of gdb will stop instead at the innermost frame on
 809     # the line where we are trying to "next" to.
 810
 811     delete_breakpoints
 812
 813     if [istarget "mips*tx39-*"] {
 814         set timeout 60
 815     }
 816     # We used to set timeout here for all other targets as well.  This
 817     # is almost certainly wrong.  The proper timeout depends on the
 818     # target system in use, and how we communicate with it, so there
 819     # is no single value appropriate for all targets.  The timeout
 820     # should be established by the Dejagnu config file(s) for the
 821     # board, and respected by the test suite.
 822     #
 823     # For example, if I'm running GDB over an SSH tunnel talking to a
 824     # portmaster in California talking to an ancient 68k board running
 825     # a crummy ROM monitor (a situation I can only wish were
 826     # hypothetical), then I need a large timeout.  But that's not the
 827     # kind of knowledge that belongs in this file.
 828
 829     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 830             "next over recursive call"
 831
 832     # OK, we should be back in the same stack frame we started from.
 833     # Do a backtrace just to confirm.
 834
 835     set result [gdb_test "backtrace" \
 836             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 837             "backtrace from factorial(5.1)"]
 838     if { $result != 0 } { gdb_suppress_tests }
 839
 840     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 841   gdb_continue_to_end "recursive next test"
 842    gdb_stop_suppressing_tests;
 843 }
 844
 845 test_next_with_recursion
 846
 847
 848 #********
 849
 850 # build a new file with optimization enabled so that we can try breakpoints
 851 # on targets with optimized prologues
 852
 853 if { [prepare_for_testing break.exp "breako2" {break.c break1.c} {debug nowarnings optimize=-O2}] } {
 854     return -1
 855 }
 856
 857 #
 858 # test break at function
 859 #
 860 gdb_test "break main" \
 861     "Breakpoint.*at.* file .*, line.*" \
 862     "breakpoint function, optimized file"
 863
 864 #
 865 # test break at function
 866 #
 867 gdb_test "break marker4" \
 868     "Breakpoint.*at.* file .*$srcfile1, line.*" \
 869     "breakpoint small function, optimized file"
 870
 871 #
 872 # run until the breakpoint at main is hit. For non-stubs-using targets.
 873 #
 874 gdb_run_cmd
 875 gdb_expect {
 876     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 877         pass "run until function breakpoint, optimized file"
 878     }
 879     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
 880         pass "run until function breakpoint, optimized file (code motion)"
 881     }
 882     -re "$gdb_prompt $" {
 883         fail "run until function breakpoint, optimized file"
 884     }
 885     timeout {
 886         fail "run until function breakpoint, optimized file (timeout)"
 887     }
 888 }
 889
 890 #
 891 # run until the breakpoint at a small function
 892 #
 893
 894 #
 895 # Add a second pass pattern.  The behavior differs here between stabs
 896 # and dwarf for one-line functions.  Stabs preserves two line symbols
 897 # (one before the prologue and one after) with the same line number,
 898 # but dwarf regards these as duplicates and discards one of them.
 899 # Therefore the address after the prologue (where the breakpoint is)
 900 # has no exactly matching line symbol, and GDB reports the breakpoint
 901 # as if it were in the middle of a line rather than at the beginning.
 902
 903 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
 904 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
 905
 906 gdb_test_multiple "continue" \
 907     "run until breakpoint set at small function, optimized file" {
 908         -re "Breakpoint $decimal, marker4 \\(d=(d@entry=)?177601976\\) at .*$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, $hex in marker4 \\(d=(d@entry=)?177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 912             pass "run until breakpoint set at small function, optimized file"
 913         }
 914         -re "Breakpoint $decimal, marker4 \\(d=(d@entry=)?177601976\\) at .*$srcfile1:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*" {
 915             # marker4() is defined at line 46 when compiled with -DPROTOTYPES
 916             pass "run until breakpoint set at small function, optimized file (line bp_location14)"
 917         }
 918         -re "Breakpoint $decimal, factorial \\(.*\\) .*\{\r\n$gdb_prompt" {
 919             # GCC 4.3 emits bad line number information - see gcc/36748.
 920             if { [test_compiler_info "gcc-4-3-*"] } {
 921                 setup_xfail *-*-*
 922             }
 923             fail "run until breakpoint set at small function, optimized file"
 924         }
 925     }
 926
 927 clean_restart breako2
 928
 929 #
 930 # test that 'rbreak' on a symbol that may be from a shared library doesn't
 931 # cause a "Junk at end of arguments." error.
 932 #
 933 # On x86 GNU/Linux, this test will choke on e.g. __libc_start_main@plt.
 934 #
 935 # Note that this test won't necessarily choke on all targets even if
 936 # all the rbreak issue is present.  rbreak needs to match and set a
 937 # breakpoint on a symbol causes 'break' to choke.
 938 #
 939
 940 gdb_test_no_output "set breakpoint pending on" "rbreak junk pending setup"
 941
 942 # We expect at least one breakpoint to be set when we "rbreak main".
 943 gdb_test "rbreak main" \
 944     ".*Breakpoint.*at.* file .*$srcfile, line.*" \
 945     "rbreak junk set breakpoint"
 946
 947 # Run to a breakpoint.  Fail if we see "Junk at end of arguments".
 948 gdb_run_cmd
 949 gdb_expect {
 950     -re "Junk at end of arguments" {
 951         fail "rbreak junk"
 952     }
 953     -re ".*Breakpoint \[0-9\]+,.*$gdb_prompt $" {
 954         pass "rbreak junk"
 955     }
 956     timeout {
 957         fail "rbreak junk (timeout)"
 958     }
 959 }
 960
 961
 962 # Reset the default arguments for VxWorks
 963 if [istarget "*-*-vxworks*"] {
 964     set timeout 10
 965     verbose "Timeout is now $timeout seconds" 2
 966     gdb_test_no_output "set args main"
 967 }