gdb/testsuite/gdb.base/break.exp

   1 #   Copyright 1988, 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2002, 2003, 2007 Free 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 2 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, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 # Please email any bugs, comments, and/or additions to this file to:
  19 # bug-gdb@prep.ai.mit.edu
  20
  21 # This file was written by Rob Savoye. (rob@cygnus.com)
  22
  23 if $tracelevel then {
  24     strace $tracelevel
  25 }
  26
  27
  28 #
  29 # test running programs
  30 #
  31 set prms_id 0
  32 set bug_id 0
  33
  34 set testfile "break"
  35 set srcfile ${testfile}.c
  36 set srcfile1 ${testfile}1.c
  37 set binfile ${objdir}/${subdir}/${testfile}
  38
  39 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
  40      untested break.exp
  41      return -1
  42 }
  43
  44 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
  45      untested break.exp
  46      return -1
  47 }
  48
  49 if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
  50      untested break.exp
  51      return -1
  52 }
  53
  54 if [get_compiler_info ${binfile}] {
  55     return -1
  56 }
  57
  58 gdb_exit
  59 gdb_start
  60 gdb_reinitialize_dir $srcdir/$subdir
  61 gdb_load ${binfile}
  62
  63 if [target_info exists gdb_stub] {
  64     gdb_step_for_stub;
  65 }
  66 #
  67 # test simple breakpoint setting commands
  68 #
  69
  70 # Test deleting all breakpoints when there are none installed,
  71 # GDB should not prompt for confirmation.
  72 # Note that lib/gdb.exp provides a "delete_breakpoints" proc
  73 # for general use elsewhere.
  74
  75 send_gdb "delete breakpoints\n"
  76 gdb_expect {
  77      -re "Delete all breakpoints.*$" {
  78             send_gdb "y\n"
  79             gdb_expect {
  80                 -re "$gdb_prompt $" {
  81                     fail "Delete all breakpoints when none (unexpected prompt)"
  82                 }
  83                 timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
  84             }
  85         }
  86      -re ".*$gdb_prompt $"       { pass "Delete all breakpoints when none" }
  87     timeout                 { fail "Delete all breakpoints when none (timeout)" }
  88 }
  89
  90 #
  91 # test break at function
  92 #
  93 gdb_test "break main" \
  94     "Breakpoint.*at.* file .*$srcfile, line.*" \
  95     "breakpoint function"
  96
  97 #
  98 # test break at quoted function
  99 #
 100 gdb_test "break \"marker2\"" \
 101     "Breakpoint.*at.* file .*$srcfile1, line.*" \
 102     "breakpoint quoted function"
 103
 104 #
 105 # test break at function in file
 106 #
 107 gdb_test "break $srcfile:factorial" \
 108     "Breakpoint.*at.* file .*$srcfile, line.*" \
 109     "breakpoint function in file"
 110
 111 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
 112
 113 #
 114 # test break at line number
 115 #
 116 # Note that the default source file is the last one whose source text
 117 # was printed.  For native debugging, before we've executed the
 118 # program, this is the file containing main, but for remote debugging,
 119 # it's wherever the processor was stopped when we connected to the
 120 # board.  So, to be sure, we do a list command.
 121 #
 122 gdb_test "list main" \
 123     ".*main \\(argc, argv, envp\\).*" \
 124     "use `list' to establish default source file"
 125 gdb_test "break $bp_location1" \
 126     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
 127     "breakpoint line number"
 128
 129 #
 130 # test duplicate breakpoint
 131 #
 132 gdb_test "break $bp_location1" \
 133     "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
 134     "breakpoint duplicate"
 135
 136 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
 137
 138 #
 139 # test break at line number in file
 140 #
 141 gdb_test "break $srcfile:$bp_location2" \
 142     "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
 143     "breakpoint line number in file"
 144
 145 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 146 set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]
 147
 148 #
 149 # Test putting a break at the start of a multi-line if conditional.
 150 # Verify the breakpoint was put at the start of the conditional.
 151 #
 152 gdb_test "break multi_line_if_conditional" \
 153     "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
 154     "breakpoint at start of multi line if conditional"
 155
 156 gdb_test "break multi_line_while_conditional" \
 157     "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
 158     "breakpoint at start of multi line while conditional"
 159
 160 set bp_location5 [gdb_get_line_number "set breakpoint 5 here"]
 161 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 162
 163 #
 164 # check to see what breakpoints are set
 165 #
 166 if [target_info exists gdb_stub] {
 167     set main_line $bp_location5
 168 } else {
 169     set main_line $bp_location6
 170 }
 171
 172 if {$hp_aCC_compiler} {
 173     set proto "\\(int\\)"
 174 } else {
 175     set proto ""
 176 }
 177
 178 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
 179 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
 180 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
 181
 182 gdb_test "info break" \
 183     "Num Type\[ \]+Disp Enb Address\[ \]+What.*
 184 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 185 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
 186 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
 187 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 188 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 189 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
 190 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
 191 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
 192     "breakpoint info"
 193
 194 # FIXME: The rest of this test doesn't work with anything that can't
 195 # handle arguments.
 196 # Huh? There doesn't *appear* to be anything that passes arguments
 197 # below.
 198 if [istarget "mips-idt-*"] then {
 199     return
 200 }
 201
 202 #
 203 # run until the breakpoint at main is hit. For non-stubs-using targets.
 204 #
 205 gdb_run_cmd
 206 gdb_expect {
 207     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 208         pass "run until function breakpoint"
 209     }
 210     -re "$gdb_prompt $" {
 211         fail "run until function breakpoint"
 212     }
 213     timeout {
 214         fail "run until function breakpoint (timeout)"
 215     }
 216 }
 217
 218 #
 219 # run until the breakpoint at a line number
 220 #
 221 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 222                         "run until breakpoint set at a line number"
 223
 224 #
 225 # Run until the breakpoint set in a function in a file
 226 #
 227 for {set i 6} {$i >= 1} {incr i -1} {
 228         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
 229                         "run until file:function($i) breakpoint"
 230 }
 231
 232 #
 233 # Run until the breakpoint set at a quoted function
 234 #
 235 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*" \
 236                 "run until quoted breakpoint"
 237 #
 238 # run until the file:function breakpoint at a line number in a file
 239 #
 240 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
 241                 "run until file:linenum breakpoint"
 242
 243 # Test break at offset +1
 244 set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
 245
 246 gdb_test "break +1" \
 247     "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
 248     "breakpoint offset +1"
 249
 250 # Check to see if breakpoint is hit when stepped onto
 251
 252 gdb_test "step" \
 253     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
 254     "step onto breakpoint"
 255
 256 # Check to see if breakpoint can be set on ending brace of function
 257 set bp_location10a [gdb_get_line_number "set breakpoint 10a here"]
 258
 259 gdb_test "break $bp_location10a" \
 260     "Breakpoint.*at.* file .*$srcfile, line $bp_location10a\\." \
 261     "setting breakpoint at }"
 262
 263 gdb_test "continue" \
 264     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10a.*$bp_location10a\[\t \]+}.*breakpoint 10a here.*" \
 265     "continue to breakpoint at }"
 266
 267 #
 268 # delete all breakpoints so we can start over, course this can be a test too
 269 #
 270 delete_breakpoints
 271
 272 #
 273 # test temporary breakpoint at function
 274 #
 275
 276 gdb_test "tbreak main" "Breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 277
 278 #
 279 # test break at function in file
 280 #
 281
 282 gdb_test "tbreak $srcfile:factorial" "Breakpoint.*at.* file .*$srcfile, line.*" \
 283         "Temporary breakpoint function in file"
 284
 285 #
 286 # test break at line number
 287 #
 288 send_gdb "tbreak $bp_location1\n"
 289 gdb_expect {
 290     -re "Breakpoint.*at.* file .*$srcfile, line $bp_location1.*$gdb_prompt $" { pass "Temporary breakpoint line number #1" }
 291         -re ".*$gdb_prompt $"   { pass "Temporary breakpoint line number #1" }
 292         timeout     { fail "breakpoint line number #1 (timeout)" }
 293 }
 294
 295 gdb_test "tbreak $bp_location6" "Breakpoint.*at.* file .*$srcfile, line $bp_location6.*" "Temporary breakpoint line number #2"
 296
 297 #
 298 # test break at line number in file
 299 #
 300 send_gdb "tbreak $srcfile:$bp_location2\n"
 301 gdb_expect {
 302     -re "Breakpoint.*at.* file .*$srcfile, line $bp_location2.*$gdb_prompt $" { pass "Temporary breakpoint line number in file #1" }
 303         -re ".*$gdb_prompt $"   { pass "Temporary breakpoint line number in file #1" }
 304         timeout     { fail "Temporary breakpoint line number in file #1 (timeout)" }
 305 }
 306
 307 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
 308 gdb_test  "tbreak $srcfile:$bp_location11" "Breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
 309
 310 #
 311 # check to see what breakpoints are set (temporary this time)
 312 #
 313 gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
 314 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 315 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
 316 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
 317 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
 318 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
 319 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
 320     "Temporary breakpoint info"
 321
 322
 323 #***********
 324
 325 # Verify that catchpoints for fork, vfork and exec don't trigger
 326 # inappropriately.  (There are no calls to those system functions
 327 # in this test program.)
 328 #
 329 if ![runto_main] then { fail "break tests suppressed" }
 330
 331 send_gdb "catch\n"
 332 gdb_expect {
 333   -re "Catch requires an event name.*$gdb_prompt $"\
 334           {pass "catch requires an event name"}
 335   -re "$gdb_prompt $"\
 336           {fail "catch requires an event name"}
 337   timeout {fail "(timeout) catch requires an event name"}
 338 }
 339
 340
 341 set name "set catch fork, never expected to trigger"
 342 send_gdb "catch fork\n"
 343 gdb_expect {
 344   -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $"
 345           {pass $name}
 346   -re "Catch of fork not yet implemented.*$gdb_prompt $"
 347           {pass $name}
 348   -re "$gdb_prompt $"
 349           {fail $name}
 350   timeout {fail "(timeout) $name"}
 351 }
 352
 353
 354 set name "set catch vfork, never expected to trigger"
 355 send_gdb "catch vfork\n"
 356
 357 # If we are on HP-UX 10.20, we expect an error message to be
 358 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 359 # because on HP-UX 10.20, we cannot catch vfork events.
 360
 361 if [istarget "hppa*-hp-hpux10.20"] then {
 362     gdb_expect {
 363         -re "Catch of vfork events not supported on HP-UX 10.20..*$gdb_prompt $"
 364                 {pass $name}
 365         -re "$gdb_prompt $"
 366                 {fail $name}
 367         timeout {fail "(timeout) $name"}
 368     }
 369 } else {
 370     gdb_expect {
 371         -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $"
 372                 {pass $name}
 373         -re "Catch of vfork not yet implemented.*$gdb_prompt $"
 374                 {pass $name}
 375         -re "$gdb_prompt $"
 376                 {fail $name}
 377         timeout {fail "(timeout) $name"}
 378     }
 379 }
 380
 381 set name "set catch exec, never expected to trigger"
 382 send_gdb "catch exec\n"
 383 gdb_expect {
 384   -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $"
 385           {pass $name}
 386   -re "Catch of exec not yet implemented.*$gdb_prompt $"
 387           {pass $name}
 388   -re "$gdb_prompt $" {fail $name}
 389   timeout {fail "(timeout) $name"}
 390 }
 391
 392 # Verify that GDB responds gracefully when asked to set a breakpoint
 393 # on a nonexistent source line.
 394 #
 395 send_gdb "break 999\n"
 396 gdb_expect {
 397   -re "No line 999 in file .*$gdb_prompt $"\
 398           {pass "break on non-existent source line"}
 399   -re "$gdb_prompt $"\
 400           {fail "break on non-existent source line"}
 401   timeout {fail "(timeout) break on non-existent source line"}
 402 }
 403
 404 # Run to the desired default location. If not positioned here, the
 405 # tests below don't work.
 406 #
 407 gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" "until bp_location1"
 408
 409
 410 # Verify that GDB allows one to just say "break", which is treated
 411 # as the "default" breakpoint.  Note that GDB gets cute when printing
 412 # the informational message about other breakpoints at the same
 413 # location.  We'll hit that bird with this stone too.
 414 #
 415 send_gdb "break\n"
 416 gdb_expect {
 417   -re "Breakpoint \[0-9\]*.*$gdb_prompt $"\
 418           {pass "break on default location, 1st time"}
 419   -re "$gdb_prompt $"\
 420           {fail "break on default location, 1st time"}
 421   timeout {fail "(timeout) break on default location, 1st time"}
 422 }
 423
 424 send_gdb "break\n"
 425 gdb_expect {
 426   -re "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 427           {pass "break on default location, 2nd time"}
 428   -re "$gdb_prompt $"\
 429           {fail "break on default location, 2nd time"}
 430   timeout {fail "(timeout) break on default location, 2nd time"}
 431 }
 432
 433 send_gdb "break\n"
 434 gdb_expect {
 435   -re "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 436           {pass "break on default location, 3rd time"}
 437   -re "$gdb_prompt $"\
 438           {fail "break on default location, 3rd time"}
 439   timeout {fail "(timeout) break on default location, 3rd time"}
 440 }
 441
 442 send_gdb "break\n"
 443 gdb_expect {
 444   -re "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 445           {pass "break on default location, 4th time"}
 446   -re "$gdb_prompt $"\
 447           {fail "break on default location, 4th time"}
 448   timeout {fail "(timeout) break on default location, 4th time"}
 449 }
 450
 451 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 452 # "silent" about its triggering.
 453 #
 454 if ![runto_main] then { fail "break tests suppressed" }
 455
 456 send_gdb "break $bp_location1\n"
 457 gdb_expect {
 458   -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $"\
 459           {pass "set to-be-silent break bp_location1"}
 460   -re "$gdb_prompt $"\
 461           {fail "set to-be-silent break bp_location1"}
 462   timeout {fail "(timeout) set to-be-silent break bp_location1"}
 463 }
 464
 465 send_gdb "commands $expect_out(1,string)\n"
 466 send_gdb "silent\n"
 467 send_gdb "end\n"
 468 gdb_expect {
 469   -re ".*$gdb_prompt $"\
 470           {pass "set silent break bp_location1"}
 471   timeout {fail "(timeout) set silent break bp_location1"}
 472 }
 473
 474 send_gdb "info break $expect_out(1,string)\n"
 475 gdb_expect {
 476   -re "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*$gdb_prompt $"\
 477           {pass "info silent break bp_location1"}
 478   -re "$gdb_prompt $"\
 479           {fail "info silent break bp_location1"}
 480   timeout {fail "(timeout) info silent break bp_location1"}
 481 }
 482 send_gdb "continue\n"
 483 gdb_expect {
 484   -re "Continuing.\r\n$gdb_prompt $"\
 485           {pass "hit silent break bp_location1"}
 486   -re "$gdb_prompt $"\
 487           {fail "hit silent break bp_location1"}
 488   timeout {fail "(timeout) hit silent break bp_location1"}
 489 }
 490 send_gdb "bt\n"
 491 gdb_expect {
 492   -re "#0  main .* at .*:$bp_location1.*$gdb_prompt $"\
 493           {pass "stopped for silent break bp_location1"}
 494   -re "$gdb_prompt $"\
 495           {fail "stopped for silent break bp_location1"}
 496   timeout {fail "(timeout) stopped for silent break bp_location1"}
 497 }
 498
 499 # Verify that GDB can at least parse a breakpoint with the
 500 # "thread" keyword.  (We won't attempt to test here that a
 501 # thread-specific breakpoint really triggers appropriately.
 502 # The gdb.threads subdirectory contains tests for that.)
 503 #
 504 set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
 505 send_gdb "break $bp_location12 thread 999\n"
 506 gdb_expect {
 507   -re "Unknown thread 999.*$gdb_prompt $"\
 508           {pass "thread-specific breakpoint on non-existent thread disallowed"}
 509   -re "$gdb_prompt $"\
 510           {fail "thread-specific breakpoint on non-existent thread disallowed"}
 511   timeout {fail "(timeout) thread-specific breakpoint on non-existent thread disallowed"}
 512 }
 513 send_gdb "break $bp_location12 thread foo\n"
 514 gdb_expect {
 515   -re "Junk after thread keyword..*$gdb_prompt $"\
 516           {pass "thread-specific breakpoint on bogus thread ID disallowed"}
 517   -re "$gdb_prompt $"\
 518           {fail "thread-specific breakpoint on bogus thread ID disallowed"}
 519   timeout {fail "(timeout) thread-specific breakpoint on bogus thread ID disallowed"}
 520 }
 521
 522 # Verify that GDB responds gracefully to a breakpoint command with
 523 # trailing garbage.
 524 #
 525 send_gdb "break $bp_location12 foo\n"
 526 gdb_expect {
 527   -re "Junk at end of arguments..*$gdb_prompt $"\
 528           {pass "breakpoint with trailing garbage disallowed"}
 529   -re "$gdb_prompt $"\
 530           {fail "breakpoint with trailing garbage disallowed"}
 531   timeout {fail "(timeout) breakpoint with trailing garbage disallowed"}
 532 }
 533
 534 # Verify that GDB responds gracefully to a "clear" command that has
 535 # no matching breakpoint.  (First, get us off the current source line,
 536 # which we know has a breakpoint.)
 537 #
 538 send_gdb "next\n"
 539 gdb_expect {
 540   -re ".*$gdb_prompt $"\
 541           {pass "step over breakpoint"}
 542   timeout {fail "(timeout) step over breakpoint"}
 543 }
 544 send_gdb "clear 81\n"
 545 gdb_expect {
 546   -re "No breakpoint at 81..*$gdb_prompt $"\
 547           {pass "clear line has no breakpoint disallowed"}
 548   -re "$gdb_prompt $"\
 549           {fail "clear line has no breakpoint disallowed"}
 550   timeout {fail "(timeout) clear line has no breakpoint disallowed"}
 551 }
 552 send_gdb "clear\n"
 553 gdb_expect {
 554   -re "No breakpoint at this line..*$gdb_prompt $"\
 555           {pass "clear current line has no breakpoint disallowed"}
 556   -re "$gdb_prompt $"\
 557           {fail "clear current line has no breakpoint disallowed"}
 558   timeout {fail "(timeout) clear current line has no breakpoint disallowed"}
 559 }
 560
 561 # Verify that we can set and clear multiple breakpoints.
 562 #
 563 # We don't test that it deletes the correct breakpoints.  We do at
 564 # least test that it deletes more than one breakpoint.
 565 #
 566 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 567 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 568 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 569
 570 # Verify that a breakpoint can be set via a convenience variable.
 571 #
 572 send_gdb "set \$foo=$bp_location11\n"
 573 gdb_expect {
 574   -re "$gdb_prompt $"\
 575           {pass "set convenience variable \$foo to bp_location11"}
 576   timeout {fail "(timeout) set convenience variable \$foo to bp_location11"}
 577 }
 578 send_gdb "break \$foo\n"
 579 gdb_expect {
 580   -re "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*$gdb_prompt $"\
 581           {pass "set breakpoint via convenience variable"}
 582   -re "$gdb_prompt $"\
 583           {fail "set breakpoint via convenience variable"}
 584   timeout {fail "(timeout) set breakpoint via convenience variable"}
 585 }
 586
 587 # Verify that GDB responds gracefully to an attempt to set a
 588 # breakpoint via a convenience variable whose type is not integer.
 589 #
 590 send_gdb "set \$foo=81.5\n"
 591 gdb_expect {
 592   -re "$gdb_prompt $"\
 593           {pass "set convenience variable \$foo to 81.5"}
 594   timeout {fail "(timeout) set convenience variable \$foo to 81.5"}
 595 }
 596 send_gdb "break \$foo\n"
 597 gdb_expect {
 598   -re "Convenience variables used in line specs must have integer values..*$gdb_prompt $"\
 599           {pass "set breakpoint via non-integer convenience variable disallowed"}
 600   -re "$gdb_prompt $"\
 601           {fail "set breakpoint via non-integer convenience variable disallowed"}
 602   timeout {fail "(timeout) set breakpoint via non-integer convenience variable disallowed"}
 603 }
 604
 605 # Verify that we can set and trigger a breakpoint in a user-called function.
 606 #
 607 send_gdb "break marker2\n"
 608 gdb_expect {
 609     -re "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*$gdb_prompt $"\
 610           {pass "set breakpoint on to-be-called function"}
 611   -re "$gdb_prompt $"\
 612           {fail "set breakpoint on to-be-called function"}
 613   timeout {fail "(timeout) set breakpoint on to-be-called function"}
 614 }
 615 send_gdb "print marker2(99)\n"
 616 gdb_expect {
 617   -re "The program being debugged stopped while in a function called from GDB.\r\nWhen the function .marker2$proto. is done executing, GDB will silently\r\nstop .instead of continuing to evaluate the expression containing\r\nthe function call...*$gdb_prompt $"\
 618           {pass "hit breakpoint on called function"}
 619   -re "$gdb_prompt $"\
 620           {fail "hit breakpoint on called function"}
 621   timeout {fail "(timeout) hit breakpoint on called function"}
 622 }
 623
 624 # As long as we're stopped (breakpointed) in a called function,
 625 # verify that we can successfully backtrace & such from here.
 626 #
 627 # In this and the following test, the _sr4export check apparently is needed
 628 # for hppa*-*-hpux.
 629 #
 630 send_gdb "bt\n"
 631 gdb_expect {
 632     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $"\
 633             {pass "backtrace while in called function"}
 634     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $"\
 635             {pass "backtrace while in called function"}
 636     -re "$gdb_prompt $"\
 637             {fail "backtrace while in called function"}
 638     timeout {fail "(timeout) backtrace while in called function"}
 639 }
 640
 641 # Return from the called function.  For remote targets, it's important to do
 642 # this before runto_main, which otherwise may silently stop on the dummy
 643 # breakpoint inserted by GDB at the program's entry point.
 644 #
 645 send_gdb "finish\n"
 646 gdb_expect {
 647     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $"\
 648             {pass "finish from called function"}
 649     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $"\
 650             {pass "finish from called function"}
 651     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $"\
 652             {pass "finish from called function"}
 653     -re "$gdb_prompt $"\
 654             {fail "finish from called function"}
 655     timeout {fail "(timeout) finish from called function"}
 656 }
 657
 658 # Verify that GDB responds gracefully to a "finish" command with
 659 # arguments.
 660 #
 661 if ![runto_main] then { fail "break tests suppressed" }
 662
 663 send_gdb "finish 123\n"
 664 gdb_expect {
 665   -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
 666           {pass "finish with arguments disallowed"}
 667   -re "$gdb_prompt $"\
 668           {fail "finish with arguments disallowed"}
 669   timeout {fail "(timeout) finish with arguments disallowed"}
 670 }
 671
 672 # Verify that GDB responds gracefully to a request to "finish" from
 673 # the outermost frame.  On a stub that never exits, this will just
 674 # run to the stubs routine, so we don't get this error...  Thus the
 675 # second condition.
 676 #
 677
 678 send_gdb "finish\n"
 679 gdb_expect {
 680   -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $"\
 681           {pass "finish from outermost frame disallowed"}
 682   -re "Run till exit from.*\r\n$gdb_prompt $" {
 683      pass "finish from outermost frame disallowed"
 684   }
 685   -re "$gdb_prompt $"\
 686           {fail "finish from outermost frame disallowed"}
 687   timeout {fail "(timeout) finish from outermost frame disallowed"}
 688 }
 689
 690 # Verify that we can explicitly ask GDB to stop on all shared library
 691 # events, and that it does so.
 692 #
 693 if [istarget "hppa*-*-hpux*"] then {
 694   if ![runto_main] then { fail "break tests suppressed" }
 695
 696   send_gdb "set stop-on-solib-events 1\n"
 697   gdb_expect {
 698     -re "$gdb_prompt $"\
 699             {pass "set stop-on-solib-events"}
 700     timeout {fail "(timeout) set stop-on-solib-events"}
 701   }
 702
 703   send_gdb "run\n"
 704   gdb_expect {
 705     -re ".*Start it from the beginning.*y or n. $"\
 706             {send_gdb "y\n"
 707              gdb_expect {
 708                -re ".*Stopped due to shared library event.*$gdb_prompt $"\
 709                        {pass "triggered stop-on-solib-events"}
 710                -re "$gdb_prompt $"\
 711                        {fail "triggered stop-on-solib-events"}
 712                timeout {fail "(timeout) triggered stop-on-solib-events"}
 713              }
 714             }
 715     -re "$gdb_prompt $"\
 716             {fail "rerun for stop-on-solib-events"}
 717     timeout {fail "(timeout) rerun for stop-on-solib-events"}
 718   }
 719
 720   send_gdb "set stop-on-solib-events 0\n"
 721   gdb_expect {
 722     -re "$gdb_prompt $"\
 723             {pass "reset stop-on-solib-events"}
 724     timeout {fail "(timeout) reset stop-on-solib-events"}
 725   }
 726 }
 727
 728 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 729 # gracefully responds to requests to create them.
 730 #
 731 if [istarget "hppa*-*-hpux*"] then {
 732   if ![runto_main] then { fail "break tests suppressed" }
 733
 734   send_gdb "hbreak\n"
 735   gdb_expect {
 736     -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
 737             {pass "hw breaks disallowed"}
 738     -re "$gdb_prompt $"\
 739             {fail "hw breaks disallowed"}
 740     timeout {fail "(timeout) hw breaks disallowed"}
 741   }
 742
 743   send_gdb "thbreak\n"
 744   gdb_expect {
 745     -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
 746             {pass "temporary hw breaks disallowed"}
 747     -re "$gdb_prompt $"\
 748             {fail "temporary hw breaks disallowed"}
 749     timeout {fail "(timeout) temporary hw breaks disallowed"}
 750   }
 751 }
 752
 753 #********
 754
 755
 756 #
 757 # Test "next" over recursive function call.
 758 #
 759
 760 proc test_next_with_recursion {} {
 761     global gdb_prompt
 762     global decimal
 763     global binfile
 764
 765     gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 766     delete_breakpoints
 767
 768     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 769
 770     # Run until we call factorial with 6
 771
 772     gdb_run_cmd
 773     gdb_expect {
 774         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 775         -re ".*$gdb_prompt $" {
 776             fail "run to factorial(6)";
 777             gdb_suppress_tests;
 778         }
 779         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 780     }
 781
 782     # Continue until we call factorial recursively with 5.
 783
 784     if [gdb_test "continue" \
 785         "Continuing.*Break.* factorial .value=5. .*" \
 786         "continue to factorial(5)"] then { gdb_suppress_tests }
 787
 788     # Do a backtrace just to confirm how many levels deep we are.
 789
 790     if [gdb_test "backtrace" \
 791         "#0\[ \t\]+ factorial .value=5..*" \
 792         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 793
 794     # Now a "next" should position us at the recursive call, which
 795     # we will be performing with 4.
 796
 797     if [gdb_test "next" \
 798         ".* factorial .value - 1.;.*" \
 799         "next to recursive call"] then { gdb_suppress_tests }
 800
 801     # Disable the breakpoint at the entry to factorial by deleting them all.
 802     # The "next" should run until we return to the next line from this
 803     # recursive call to factorial with 4.
 804     # Buggy versions of gdb will stop instead at the innermost frame on
 805     # the line where we are trying to "next" to.
 806
 807     delete_breakpoints
 808
 809     if [istarget "mips*tx39-*"] {
 810         set timeout 60
 811     }
 812     # We used to set timeout here for all other targets as well.  This
 813     # is almost certainly wrong.  The proper timeout depends on the
 814     # target system in use, and how we communicate with it, so there
 815     # is no single value appropriate for all targets.  The timeout
 816     # should be established by the Dejagnu config file(s) for the
 817     # board, and respected by the test suite.
 818     #
 819     # For example, if I'm running GDB over an SSH tunnel talking to a
 820     # portmaster in California talking to an ancient 68k board running
 821     # a crummy ROM monitor (a situation I can only wish were
 822     # hypothetical), then I need a large timeout.  But that's not the
 823     # kind of knowledge that belongs in this file.
 824
 825     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 826             "next over recursive call"
 827
 828     # OK, we should be back in the same stack frame we started from.
 829     # Do a backtrace just to confirm.
 830
 831     set result [gdb_test "backtrace" \
 832             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 833             "backtrace from factorial(5.1)"]
 834     if { $result != 0 } { gdb_suppress_tests }
 835
 836     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 837   gdb_continue_to_end "recursive next test"
 838    gdb_stop_suppressing_tests;
 839 }
 840
 841 test_next_with_recursion
 842
 843
 844 #********
 845
 846 # build a new file with optimization enabled so that we can try breakpoints
 847 # on targets with optimized prologues
 848
 849 set binfileo2 ${objdir}/${subdir}/${testfile}o2
 850
 851 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}O0.o" object {debug nowarnings optimize=-O2}] != "" } {
 852      untested break.exp
 853      return -1
 854 }
 855
 856 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}O1.o" object {debug nowarnings optimize=-O2}] != "" } {
 857      untested break.exp
 858      return -1
 859 }
 860
 861 if  { [gdb_compile "${binfile}O0.o ${binfile}O1.o" "${binfileo2}" executable {debug nowarnings}] != "" } {
 862      untested break.exp
 863      return -1
 864 }
 865
 866 if [get_compiler_info ${binfileo2}] {
 867     return -1
 868 }
 869
 870 gdb_exit
 871 gdb_start
 872 gdb_reinitialize_dir $srcdir/$subdir
 873 gdb_load ${binfileo2}
 874
 875 if [target_info exists gdb_stub] {
 876     gdb_step_for_stub;
 877 }
 878
 879 #
 880 # test break at function
 881 #
 882 gdb_test "break main" \
 883     "Breakpoint.*at.* file .*, line.*" \
 884     "breakpoint function, optimized file"
 885
 886 #
 887 # test break at function
 888 #
 889 gdb_test "break marker4" \
 890     "Breakpoint.*at.* file .*$srcfile1, line.*" \
 891     "breakpoint small function, optimized file"
 892
 893 #
 894 # run until the breakpoint at main is hit. For non-stubs-using targets.
 895 #
 896 gdb_run_cmd
 897 gdb_expect {
 898     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 899         pass "run until function breakpoint, optimized file"
 900     }
 901     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
 902         pass "run until function breakpoint, optimized file (code motion)"
 903     }
 904     -re "$gdb_prompt $" {
 905         fail "run until function breakpoint, optimized file"
 906     }
 907     timeout {
 908         fail "run until function breakpoint, optimized file (timeout)"
 909     }
 910 }
 911
 912 #
 913 # run until the breakpoint at a small function
 914 #
 915
 916 #
 917 # Add a second pass pattern.  The behavior differs here between stabs
 918 # and dwarf for one-line functions.  Stabs preserves two line symbols
 919 # (one before the prologue and one after) with the same line number,
 920 # but dwarf regards these as duplicates and discards one of them.
 921 # Therefore the address after the prologue (where the breakpoint is)
 922 # has no exactly matching line symbol, and GDB reports the breakpoint
 923 # as if it were in the middle of a line rather than at the beginning.
 924
 925 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
 926 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
 927 send_gdb "continue\n"
 928 gdb_expect {
 929     -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 930         pass "run until breakpoint set at small function, optimized file"
 931     }
 932     -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 933         pass "run until breakpoint set at small function, optimized file"
 934     }
 935     -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*" {
 936         # marker4() is defined at line 46 when compiled with -DPROTOTYPES
 937         pass "run until breakpoint set at small function, optimized file (line bp_location14)"
 938     }
 939     -re ".*$gdb_prompt " {
 940         fail "run until breakpoint set at small function, optimized file"
 941     }
 942     timeout {
 943         fail "run until breakpoint set at small function, optimized file (timeout)"
 944     }
 945 }
 946
 947
 948 # Reset the default arguments for VxWorks
 949 if [istarget "*-*-vxworks*"] {
 950     set timeout 10
 951     verbose "Timeout is now $timeout seconds" 2
 952     send_gdb "set args main\n"
 953     gdb_expect -re ".*$gdb_prompt $" {}
 954 }