gdb/testsuite/gdb.base/break.exp

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