gdb/testsuite/gdb.python/py-breakpoint.exp

   1 # Copyright (C) 2010-2017 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 is part of the GDB testsuite.  It tests the mechanism
  17 # exposing breakpoints to Python.
  18
  19 load_lib gdb-python.exp
  20
  21 standard_testfile
  22
  23 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
  24     return -1
  25 }
  26
  27 # Skip all tests if Python scripting is not enabled.
  28 if { [skip_python_tests] } { continue }
  29
  30 proc_with_prefix test_bkpt_basic { } {
  31     global srcfile testfile hex decimal
  32
  33     # Start with a fresh gdb.
  34     clean_restart ${testfile}
  35
  36     # We should start with no breakpoints.
  37     gdb_test "python print (gdb.breakpoints())" "\\(\\)"
  38
  39     if ![runto_main] then {
  40         fail "cannot run to main."
  41         return 0
  42     }
  43
  44     # Now there should be one breakpoint: main.
  45     gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" \
  46         "Get Breakpoint List" 0
  47     gdb_test "python print (blist\[0\])" \
  48         "<gdb.Breakpoint object at $hex>" "Check obj exists @main"
  49     gdb_test "python print (blist\[0\].location)" \
  50         "main." "Check breakpoint location @main"
  51     gdb_test "python print (blist\[0\].pending)" "False" \
  52         "Check pending status of main breakpoint"
  53
  54     set mult_line [gdb_get_line_number "Break at multiply."]
  55     gdb_breakpoint ${mult_line}
  56     gdb_continue_to_breakpoint "Break at multiply" \
  57         ".*Break at multiply.*"
  58
  59     # Check that the Python breakpoint code noted the addition of a
  60     # breakpoint "behind the scenes".
  61     gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" \
  62         "Get Breakpoint List" 0
  63     gdb_test "python print (len(blist))" \
  64         "2" "Check for two breakpoints"
  65     gdb_test "python print (blist\[0\])" \
  66         "<gdb.Breakpoint object at $hex>" "Check obj exists @main 2"
  67     gdb_test "python print (blist\[0\].location)" \
  68         "main." "Check breakpoint location @main 2"
  69     gdb_test "python print (blist\[1\])" \
  70         "<gdb.Breakpoint object at $hex>" "Check obj exists @mult_line"
  71
  72     gdb_test "python print (blist\[1\].location)" \
  73         "py-breakpoint\.c:${mult_line}*" \
  74         "check breakpoint location @mult_line"
  75
  76     # Check hit and ignore counts.
  77     gdb_test "python print (blist\[1\].hit_count)" \
  78         "1" "Check breakpoint hit count @1"
  79     gdb_py_test_silent_cmd "python blist\[1\].ignore_count = 4" \
  80         "Set breakpoint hit count" 0
  81     gdb_continue_to_breakpoint "Break at multiply @6" \
  82         ".*Break at multiply.*"
  83     gdb_test "python print (blist\[1\].hit_count)" \
  84         "6" "Check breakpoint hit count @6"
  85     gdb_test "print result" \
  86         " = 545" "Check expected variable result after 6 iterations"
  87
  88     # Test breakpoint is enabled and disabled correctly..
  89     gdb_breakpoint [gdb_get_line_number "Break at add."]
  90     gdb_continue_to_breakpoint "Break at add 1" ".*Break at add.*"
  91     gdb_test "python print (blist\[1\].enabled)" \
  92         "True" "Check breakpoint enabled."
  93     gdb_py_test_silent_cmd  "python blist\[1\].enabled = False" \
  94         "Set breakpoint disabled." 0
  95     gdb_continue_to_breakpoint "Break at add 2" ".*Break at add.*"
  96     gdb_py_test_silent_cmd  "python blist\[1\].enabled = True" \
  97         "Set breakpoint enabled." 0
  98     gdb_continue_to_breakpoint "Break at multiply after re-enable" \
  99         ".*Break at multiply.*"
 100
 101     # Test other getters and setters.
 102     gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" \
 103         "Get Breakpoint List" 0
 104     gdb_test "python print (blist\[1\].thread)" \
 105         "None" "Check breakpoint thread"
 106     gdb_test "python print (blist\[1\].type == gdb.BP_BREAKPOINT)" \
 107         "True" "Check breakpoint type"
 108     gdb_test "python print (blist\[0\].number)" \
 109         "1" "Check breakpoint number 0"
 110     gdb_test "python print (blist\[1\].number)" \
 111         "2" "Check breakpoint number 1"
 112     gdb_test "python print (blist\[2\].number)" \
 113         "3" "Check breakpoint number 2"
 114 }
 115
 116 proc_with_prefix test_bkpt_deletion { } {
 117     global srcfile testfile hex decimal
 118
 119     # Start with a fresh gdb.
 120     clean_restart ${testfile}
 121
 122     if ![runto_main] then {
 123         fail "cannot run to main."
 124         return 0
 125     }
 126
 127     # Test breakpoints are deleted correctly.
 128     set deltst_location [gdb_get_line_number "Break at multiply."]
 129     set end_location [gdb_get_line_number "Break at end."]
 130     gdb_py_test_silent_cmd  "python dp1 = gdb.Breakpoint (\"$deltst_location\")" \
 131         "Set breakpoint" 0
 132     gdb_breakpoint [gdb_get_line_number "Break at end."]
 133     gdb_py_test_silent_cmd "python del_list = gdb.breakpoints()" \
 134         "Get Breakpoint List" 0
 135     gdb_test "python print (len(del_list))" \
 136         "3" "Number of breakpoints before delete"
 137     gdb_continue_to_breakpoint "Break at multiply." \
 138         ".*$srcfile:$deltst_location.*"
 139     gdb_py_test_silent_cmd  "python dp1.delete()" \
 140         "Delete Breakpoint" 0
 141     gdb_test "python print (dp1.number)" \
 142         "RuntimeError: Breakpoint 2 is invalid.*" \
 143         "Check breakpoint invalidated"
 144     gdb_py_test_silent_cmd "python del_list = gdb.breakpoints()" \
 145         "Get Breakpoint List" 0
 146     gdb_test "python print (len(del_list))" \
 147         "2" "Number of breakpoints after delete"
 148     gdb_continue_to_breakpoint "Break at end." \
 149         ".*$srcfile:$end_location.*"
 150 }
 151
 152 proc_with_prefix test_bkpt_cond_and_cmds { } {
 153     global srcfile testfile hex decimal
 154
 155     # Start with a fresh gdb.
 156     clean_restart ${testfile}
 157
 158     if ![runto_main] then {
 159         fail "cannot run to main."
 160         return 0
 161     }
 162
 163     # Test conditional setting.
 164     set bp_location1 [gdb_get_line_number "Break at multiply."]
 165     gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (\"$bp_location1\")" \
 166         "Set breakpoint" 0
 167     gdb_continue_to_breakpoint "Break at multiply" \
 168         ".*Break at multiply.*"
 169     gdb_py_test_silent_cmd "python bp1.condition = \"i == 5\"" \
 170         "Set breakpoint" 0
 171     gdb_test "python print (bp1.condition)" "i == 5" \
 172         "Test conditional has been set"
 173     gdb_continue_to_breakpoint "Break at multiply @5" \
 174         ".*Break at multiply.*"
 175     gdb_test "print i" \
 176         "5" "Test conditional breakpoint stopped after five iterations"
 177     gdb_py_test_silent_cmd "python bp1.condition = None" \
 178         "Clear condition" 0
 179     gdb_test "python print (bp1.condition)" \
 180         "None" "Test conditional read"
 181     gdb_continue_to_breakpoint "Break at multiply @6" \
 182         ".*Break at multiply.*"
 183     gdb_test "print i" \
 184         "6" "Test breakpoint stopped after six iterations"
 185
 186     # Test commands.
 187     gdb_breakpoint [gdb_get_line_number "Break at add."]
 188     set test {commands $bpnum}
 189     gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 190     set test {print "Command for breakpoint has been executed."}
 191     gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 192     set test {print result}
 193     gdb_test_multiple $test $test { -re "\r\n>$" { pass $test } }
 194     gdb_test "end"
 195
 196     gdb_py_test_silent_cmd "python blist = gdb.breakpoints()" \
 197         "Get Breakpoint List" 0
 198     gdb_test "python print (blist\[len(blist)-1\].commands)" \
 199         "print \"Command for breakpoint has been executed.\".*print result"
 200 }
 201
 202 proc_with_prefix test_bkpt_invisible { } {
 203     global srcfile testfile hex decimal
 204
 205     # Start with a fresh gdb.
 206     clean_restart ${testfile}
 207
 208     if ![runto_main] then {
 209         fail "cannot run to main."
 210         return 0
 211     }
 212
 213     delete_breakpoints
 214     set ibp_location [gdb_get_line_number "Break at multiply."]
 215     gdb_py_test_silent_cmd  "python ibp = gdb.Breakpoint(\"$ibp_location\", internal=False)" \
 216         "Set invisible breakpoint" 0
 217     gdb_py_test_silent_cmd "python ilist = gdb.breakpoints()" \
 218         "Get Breakpoint List" 0
 219     gdb_test "python print (ilist\[0\])" \
 220         "<gdb.Breakpoint object at $hex>" "Check invisible bp obj exists 1"
 221     gdb_test "python print (ilist\[0\].location)" \
 222         "py-breakpoint\.c:$ibp_location*" "Check breakpoint location 1"
 223     gdb_test "python print (ilist\[0\].visible)" \
 224         "True" "Check breakpoint visibility 1"
 225     gdb_test "info breakpoints" "py-breakpoint\.c:$ibp_location.*" \
 226         "Check info breakpoints shows visible breakpoints"
 227     delete_breakpoints
 228     gdb_py_test_silent_cmd  "python ibp = gdb.Breakpoint(\"$ibp_location\", internal=True)" \
 229         "Set invisible breakpoint" 0
 230     gdb_py_test_silent_cmd "python ilist = gdb.breakpoints()" \
 231         "Get Breakpoint List" 0
 232     gdb_test "python print (ilist\[0\])" \
 233         "<gdb.Breakpoint object at $hex>" "Check invisible bp obj exists 2"
 234     gdb_test "python print (ilist\[0\].location)" \
 235         "py-breakpoint\.c:$ibp_location*" "Check breakpoint location 2"
 236     gdb_test "python print (ilist\[0\].visible)" \
 237         "False" "Check breakpoint visibility 2"
 238     gdb_test "info breakpoints" "No breakpoints or watchpoints.*" \
 239         "Check info breakpoints does not show invisible breakpoints"
 240     gdb_test "maint info breakpoints" \
 241         "py-breakpoint\.c:$ibp_location.*" \
 242         "Check maint info breakpoints shows invisible breakpoints"
 243 }
 244
 245 proc_with_prefix test_watchpoints { } {
 246     global srcfile testfile hex decimal
 247
 248     # Start with a fresh gdb.
 249     clean_restart ${testfile}
 250
 251     # Disable hardware watchpoints if necessary.
 252     if [target_info exists gdb,no_hardware_watchpoints] {
 253         gdb_test_no_output "set can-use-hw-watchpoints 0" ""
 254     }
 255
 256     if ![runto_main] then {
 257         fail "cannot run to main."
 258         return 0
 259     }
 260
 261     gdb_py_test_silent_cmd  "python wp1 = gdb.Breakpoint (\"result\", type=gdb.BP_WATCHPOINT, wp_class=gdb.WP_WRITE )" \
 262         "Set watchpoint" 0
 263     gdb_test "python print (wp1.pending)" "False"
 264     gdb_test "continue" \
 265         ".*\[Ww\]atchpoint.*result.*Old value = 0.*New value = 25.*main.*" \
 266         "Test watchpoint write"
 267 }
 268
 269 proc_with_prefix test_bkpt_internal { } {
 270     global srcfile testfile hex decimal
 271
 272     # Start with a fresh gdb.
 273     clean_restart ${testfile}
 274
 275     # Disable hardware watchpoints if necessary.
 276     if [target_info exists gdb,no_hardware_watchpoints] {
 277         gdb_test_no_output "set can-use-hw-watchpoints 0" ""
 278     }
 279     if ![runto_main] then {
 280         fail "cannot run to main."
 281         return 0
 282     }
 283     delete_breakpoints
 284     gdb_py_test_silent_cmd  "python wp1 = gdb.Breakpoint (\"result\", type=gdb.BP_WATCHPOINT, wp_class=gdb.WP_WRITE, internal=True )" \
 285         "Set watchpoint" 0
 286     gdb_test "info breakpoints" \
 287         "No breakpoints or watchpoints.*" \
 288         "Check info breakpoints does not show invisible breakpoints"
 289     gdb_test "maint info breakpoints" \
 290         ".*watchpoint.*result.*" \
 291         "Check maint info breakpoints shows invisible breakpoints"
 292     gdb_test "continue" \
 293         ".*\[Ww\]atchpoint.*result.*Old value = 0.*New value = 25.*" \
 294         "Test watchpoint write"
 295 }
 296
 297 proc_with_prefix test_bkpt_eval_funcs { } {
 298     global srcfile testfile hex decimal
 299
 300     # Start with a fresh gdb.
 301     clean_restart ${testfile}
 302
 303     # Disable hardware watchpoints if necessary.
 304     if [target_info exists gdb,no_hardware_watchpoints] {
 305         gdb_test_no_output "set can-use-hw-watchpoints 0" ""
 306     }
 307     if ![runto_main] then {
 308         fail "cannot run to main."
 309         return 0
 310     }
 311     delete_breakpoints
 312
 313     gdb_py_test_multiple "Sub-class a breakpoint" \
 314         "python" "" \
 315         "class bp_eval (gdb.Breakpoint):" "" \
 316         "   inf_i = 0" "" \
 317         "   count = 0" "" \
 318         "   def stop (self):" "" \
 319         "      self.count = self.count + 1" "" \
 320         "      self.inf_i = gdb.parse_and_eval(\"i\")" "" \
 321         "      if self.inf_i == 3:" "" \
 322         "        return True" "" \
 323         "      return False" "" \
 324         "end" ""
 325
 326     gdb_py_test_multiple "Sub-class a second breakpoint" \
 327         "python" "" \
 328         "class bp_also_eval (gdb.Breakpoint):" "" \
 329         "   count = 0" "" \
 330         "   def stop (self):" "" \
 331         "      self.count = self.count + 1" "" \
 332         "      if self.count == 9:" "" \
 333         "        return True" "" \
 334         "      return False" "" \
 335         "end" ""
 336
 337     gdb_py_test_multiple "Sub-class a third breakpoint" \
 338         "python" "" \
 339         "class basic (gdb.Breakpoint):" "" \
 340         "   count = 0" "" \
 341         "end" ""
 342
 343     set bp_location2 [gdb_get_line_number "Break at multiply."]
 344     set end_location [gdb_get_line_number "Break at end."]
 345     gdb_py_test_silent_cmd "python eval_bp1 = bp_eval(\"$bp_location2\")" \
 346         "Set breakpoint" 0
 347     gdb_py_test_silent_cmd "python also_eval_bp1 = bp_also_eval(\"$bp_location2\")" \
 348         "Set breakpoint" 0
 349     gdb_py_test_silent_cmd "python never_eval_bp1 = bp_also_eval(\"$end_location\")" \
 350         "Set breakpoint" 0
 351     gdb_continue_to_breakpoint "Break at multiply, i==3" \
 352         ".*$srcfile:$bp_location2.*"
 353     gdb_test "print i" \
 354         "3" "Check inferior value matches python accounting"
 355     gdb_test "python print (eval_bp1.inf_i)" \
 356         "3" "Check python accounting matches inferior"
 357     gdb_test "python print (also_eval_bp1.count)" "4" \
 358         "Check non firing same-location also_eval_bp1 function was also called at each stop."
 359     gdb_test "python print (eval_bp1.count)" "4" \
 360         "Check non firing same-location eval_bp1 function was also called at each stop."
 361
 362     delete_breakpoints
 363     set cond_bp [gdb_get_line_number "Break at multiply."]
 364     gdb_py_test_silent_cmd  "python eval_bp1 = bp_eval(\"$cond_bp\")" \
 365         "Set breakpoint" 0
 366     set test_cond {cond $bpnum}
 367     gdb_test "$test_cond \"foo==3\"" \
 368         "Only one stop condition allowed.  There is currently a Python.*" \
 369         "Check you cannot add a CLI condition to a Python breakpoint that has defined stop"
 370     gdb_py_test_silent_cmd "python eval_bp2 = basic(\"$cond_bp\")" \
 371         "Set breakpoint" 0
 372     gdb_py_test_silent_cmd "python eval_bp2.condition = \"1==1\"" \
 373         "Set a condition" 0
 374     gdb_py_test_multiple "Construct an eval function" \
 375         "python" "" \
 376         "def stop_func ():" "" \
 377         "   return True" "" \
 378         "end" ""
 379
 380     gdb_test "python eval_bp2.stop = stop_func"  \
 381         "RuntimeError: Only one stop condition allowed.  There is currently a GDB.*" \
 382         "assign stop function to a breakpoint that has a condition"
 383
 384     delete_breakpoints
 385     gdb_breakpoint [gdb_get_line_number "Break at multiply."]
 386     gdb_py_test_silent_cmd  "python check_eval = bp_eval(\"$bp_location2\")" \
 387         "Set breakpoint" 0
 388     gdb_test "python print (check_eval.count)" "0" \
 389         "Test that evaluate function has not been yet executed (ie count = 0)"
 390     gdb_continue_to_breakpoint "Break at multiply, count==1" \
 391         ".*$srcfile:$bp_location2.*"
 392     gdb_test "python print (check_eval.count)" "1" \
 393         "Test that evaluate function is run when location also has normal bp"
 394
 395     gdb_py_test_multiple "Sub-class a watchpoint" \
 396         "python" "" \
 397         "class wp_eval (gdb.Breakpoint):" "" \
 398         "   def stop (self):" "" \
 399         "      self.result = gdb.parse_and_eval(\"result\")" "" \
 400         "      if self.result == 788:" "" \
 401         "        return True" "" \
 402         "      return False" "" \
 403         "end" ""
 404
 405     delete_breakpoints
 406     gdb_py_test_silent_cmd  "python wp1 = wp_eval (\"result\", type=gdb.BP_WATCHPOINT, wp_class=gdb.WP_WRITE)" \
 407         "Set watchpoint" 0
 408     gdb_test "continue" \
 409         ".*\[Ww\]atchpoint.*result.*Old value =.*New value = 788.*" \
 410         "Test watchpoint write"
 411     gdb_test "python print (never_eval_bp1.count)" "0" \
 412         "Check that this unrelated breakpoints eval function was never called."
 413 }
 414
 415 proc_with_prefix test_bkpt_temporary { } {
 416     global srcfile testfile hex decimal
 417
 418     # Start with a fresh gdb.
 419     clean_restart ${testfile}
 420
 421     if ![runto_main] then {
 422         fail "cannot run to main."
 423         return 0
 424     }
 425     delete_breakpoints
 426
 427     gdb_py_test_multiple "Sub-class and check temporary breakpoint" \
 428         "python" "" \
 429         "class temp_bp (gdb.Breakpoint):" "" \
 430         "   count = 0" "" \
 431         "   def stop (self):" "" \
 432         "      self.count = self.count + 1" "" \
 433         "      return True" "" \
 434         "end" ""
 435     set ibp_location [gdb_get_line_number "Break at multiply."]
 436     gdb_py_test_silent_cmd "python ibp = temp_bp(\"$ibp_location\", temporary=True)" \
 437         "Set temporary breakpoint" 0
 438     gdb_test "info breakpoints" \
 439         "2.*breakpoint.*del.*py-breakpoint\.c:$ibp_location.*" \
 440         "Check info breakpoints shows breakpoint with temporary status"
 441     gdb_test "python print (ibp.location)" "py-breakpoint\.c:$ibp_location*" \
 442         "Check temporary breakpoint location"
 443     gdb_test "python print (ibp.temporary)" "True" \
 444         "Check breakpoint temporary status"
 445     gdb_continue_to_breakpoint "Break at multiply." \
 446         ".*$srcfile:$ibp_location.*"
 447     gdb_test "python print (ibp.count)" "1" \
 448         "Check temporary stop callback executed before deletion."
 449     gdb_test "python print (ibp.temporary)" "RuntimeError: Breakpoint 2 is invalid.*" \
 450         "Check temporary breakpoint is deleted after being hit"
 451     gdb_test "info breakpoints" "No breakpoints or watchpoints.*" \
 452         "Check info breakpoints shows temporary breakpoint is deleted"
 453 }
 454
 455 # Test address locations.
 456
 457 proc_with_prefix test_bkpt_address {} {
 458     global gdb_prompt decimal srcfile
 459
 460     # Delete all breakpoints
 461     delete_breakpoints
 462
 463     gdb_test "python gdb.Breakpoint(\"*main\")" \
 464         ".*Breakpoint ($decimal)+ at .*$srcfile, line ($decimal)+\."
 465
 466     gdb_py_test_silent_cmd \
 467         "python main_loc = gdb.parse_and_eval(\"main\").address" \
 468         "eval address of main" 0
 469
 470     # Python 2 vs 3 ... Check `int' first. If that fails, try `long'.
 471     gdb_test_multiple "python main_addr = int(main_loc)" "int value of main" {
 472         -re "Traceback.*$gdb_prompt $" {
 473             gdb_test_no_output "python main_addr = long(main_loc)" \
 474                 "long value of main"
 475         }
 476         -re "$gdb_prompt $" {
 477             pass "int value of main"
 478         }
 479     }
 480
 481     # Include whitespace in the linespec to double-check proper
 482     # grokking of argument to gdb.Breakpoint.
 483     gdb_test "python gdb.Breakpoint(\"  *{}\".format(str(main_addr)))" \
 484         ".*Breakpoint ($decimal)+ at .*$srcfile, line ($decimal)+\."
 485 }
 486
 487 proc_with_prefix test_bkpt_pending {} {
 488     delete_breakpoints
 489     gdb_breakpoint "nosuchfunction" allow-pending
 490     gdb_test "python print (gdb.breakpoints()\[0\].pending)" "True" \
 491         "Check pending status of pending breakpoint"
 492 }
 493
 494 # Helper proc to install an event listener for a given breakpoint
 495 # event.  NAME is the name of the event to listen for.
 496 proc connect_event {name} {
 497     set lambda "lambda x: note_event(\"$name\")"
 498     gdb_test_no_output "python gdb.events.$name.connect($lambda)" \
 499         "install $name event listener"
 500 }
 501
 502 # Helper proc to check that the most recently emitted breakpoint event
 503 # is EXPECTED.
 504 proc check_last_event {expected} {
 505     gdb_test "python print (last_bp_event)" $expected \
 506         "check for $expected event"
 507 }
 508
 509 proc_with_prefix test_bkpt_events {} {
 510     global testfile
 511
 512     clean_restart ${testfile}
 513
 514     gdb_py_test_multiple "Create event handler" \
 515         "python" "" \
 516         "def note_event(arg):" "" \
 517         "  global last_bp_event" "" \
 518         "  last_bp_event = arg" "" \
 519         "end" ""
 520     gdb_test_no_output "python last_bp_event = None"
 521
 522     connect_event breakpoint_created
 523     connect_event breakpoint_modified
 524     connect_event breakpoint_deleted
 525
 526     gdb_breakpoint [gdb_get_line_number "Break at add."]
 527     check_last_event breakpoint_created
 528     gdb_test_no_output "disable 1"
 529     check_last_event breakpoint_modified
 530     gdb_test_no_output "delete 1"
 531     check_last_event breakpoint_deleted
 532 }
 533
 534 proc test_bkpt_explicit_loc {} {
 535     global srcfile testfile
 536
 537     with_test_prefix test_bkpt_invisible {
 538         # Start with a fresh gdb.
 539         clean_restart ${testfile}
 540
 541         if ![runto_main] then {
 542             fail "cannot run to main."
 543             return 0
 544         }
 545
 546         delete_breakpoints
 547
 548         set bp_location1 [gdb_get_line_number "Break at multiply."]
 549         set bp_location2 [gdb_get_line_number "Break at add."]
 550
 551         gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (line=$bp_location1)" \
 552             "set explicit breakpoint by line" 0
 553         gdb_continue_to_breakpoint "break at multiply for explicit line" \
 554             ".*Break at multiply.*"
 555
 556         gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (line=\"+1\")" \
 557             "set explicit breakpoint by relative line" 0
 558         gdb_continue_to_breakpoint "break at add for relative line" \
 559             ".*Break at add.*"
 560
 561         delete_breakpoints
 562         gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (line=\"-1\")" \
 563             "set explicit breakpoint by relative negative line" 0
 564         gdb_continue_to_breakpoint "break at multiply for negative line" \
 565             ".*Break at multiply.*"
 566
 567         delete_breakpoints
 568         gdb_test "python bp1 = gdb.Breakpoint (line=bp1)" \
 569             "RuntimeError: Line keyword should be an integer or a string.*" \
 570             "set explicit breakpoint by invalid line type"
 571
 572         delete_breakpoints
 573         gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (function=\"add\")" \
 574             "set explicit breakpoint by function" 0
 575         gdb_continue_to_breakpoint "break at function add for function" \
 576             ".*Break at function add.*"
 577
 578         delete_breakpoints
 579         gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (source=\"$srcfile\", function=\"add\")" \
 580             "set explicit breakpoint by source file and function" 0
 581         gdb_continue_to_breakpoint "break at function add for source and function" \
 582             ".*Break at function add.*"
 583
 584         delete_breakpoints
 585         gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (source=\"$srcfile\", line=\"$bp_location2\")" \
 586             "set explicit breakpoint by source file and line number" 0
 587         gdb_continue_to_breakpoint "break at add for source and line" \
 588             ".*Break at add.*"
 589
 590         delete_breakpoints
 591         gdb_py_test_silent_cmd "python bp1 = gdb.Breakpoint (\"-source $srcfile -line $bp_location2\")" \
 592             "set explicit breakpoint by source file and line number in spec" 0
 593         gdb_continue_to_breakpoint "break at add for source and line in spec" \
 594             ".*Break at add.*"
 595
 596         delete_breakpoints
 597         gdb_test "python bp1 = gdb.Breakpoint (source=\"$srcfile\")" \
 598             "RuntimeError: Specifying a source must also include a line, label or function.*" \
 599             "set invalid explicit breakpoint by source only"
 600
 601         gdb_test "python bp1 = gdb.Breakpoint (source=\"foo.c\", line=\"5\")" \
 602             "No source file named foo.*" \
 603             "set invalid explicit breakpoint by missing source and line"
 604         gdb_test "python bp1 = gdb.Breakpoint (source=\"$srcfile\", line=\"900\")" \
 605             "No line 900 in file \"$srcfile\".*" \
 606             "set invalid explicit breakpoint by source and invalid line"
 607         gdb_test "python bp1 = gdb.Breakpoint (function=\"blah\")" \
 608             "Function \"blah\" not defined.*" \
 609             "set invalid explicit breakpoint by missing function"
 610     }
 611 }
 612
 613 test_bkpt_basic
 614 test_bkpt_deletion
 615 test_bkpt_cond_and_cmds
 616 test_bkpt_invisible
 617 test_watchpoints
 618 test_bkpt_internal
 619 test_bkpt_eval_funcs
 620 test_bkpt_temporary
 621 test_bkpt_address
 622 test_bkpt_pending
 623 test_bkpt_events
 624 test_bkpt_explicit_loc