gdb/testsuite/gdb.base/break.exp

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