gdb/testsuite/gdb.base/break.exp

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