gdb/testsuite/gdb.base/break.exp

   1 #   Copyright 1988, 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2002, 2003, 2007, 2008, 2009 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 3 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, see <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Rob Savoye. (rob@cygnus.com)
  18
  19 if { [prepare_for_testing break.exp "break" {break.c break1.c} {debug nowarnings}] } {
  20     return -1
  21 }
  22 set srcfile break.c
  23 set srcfile1 break1.c
  24 #
  25 # test simple breakpoint setting commands
  26 #
  27
  28 # Test deleting all breakpoints when there are none installed,
  29 # GDB should not prompt for confirmation.
  30 # Note that lib/gdb.exp provides a "delete_breakpoints" proc
  31 # for general use elsewhere.
  32
  33 send_gdb "delete breakpoints\n"
  34 gdb_expect {
  35      -re "Delete all breakpoints.*$" {
  36             send_gdb "y\n"
  37             gdb_expect {
  38                 -re "$gdb_prompt $" {
  39                     fail "Delete all breakpoints when none (unexpected prompt)"
  40                 }
  41                 timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
  42             }
  43         }
  44      -re ".*$gdb_prompt $"       { pass "Delete all breakpoints when none" }
  45     timeout                 { fail "Delete all breakpoints when none (timeout)" }
  46 }
  47
  48 #
  49 # test break at function
  50 #
  51 gdb_test "break main" \
  52     "Breakpoint.*at.* file .*$srcfile, line.*" \
  53     "breakpoint function"
  54
  55 #
  56 # test break at quoted function
  57 #
  58 gdb_test "break \"marker2\"" \
  59     "Breakpoint.*at.* file .*$srcfile1, line.*" \
  60     "breakpoint quoted function"
  61
  62 #
  63 # test break at function in file
  64 #
  65 gdb_test "break $srcfile:factorial" \
  66     "Breakpoint.*at.* file .*$srcfile, line.*" \
  67     "breakpoint function in file"
  68
  69 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  70
  71 #
  72 # test break at line number
  73 #
  74 # Note that the default source file is the last one whose source text
  75 # was printed.  For native debugging, before we've executed the
  76 # program, this is the file containing main, but for remote debugging,
  77 # it's wherever the processor was stopped when we connected to the
  78 # board.  So, to be sure, we do a list command.
  79 #
  80 gdb_test "list main" \
  81     ".*main \\(argc, argv, envp\\).*" \
  82     "use `list' to establish default source file"
  83 gdb_test "break $bp_location1" \
  84     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
  85     "breakpoint line number"
  86
  87 #
  88 # test duplicate breakpoint
  89 #
  90 gdb_test "break $bp_location1" \
  91     "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
  92     "breakpoint duplicate"
  93
  94 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
  95
  96 #
  97 # test break at line number in file
  98 #
  99 gdb_test "break $srcfile:$bp_location2" \
 100     "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
 101     "breakpoint line number in file"
 102
 103 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 104 set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]
 105
 106 #
 107 # Test putting a break at the start of a multi-line if conditional.
 108 # Verify the breakpoint was put at the start of the conditional.
 109 #
 110 gdb_test "break multi_line_if_conditional" \
 111     "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
 112     "breakpoint at start of multi line if conditional"
 113
 114 gdb_test "break multi_line_while_conditional" \
 115     "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
 116     "breakpoint at start of multi line while conditional"
 117
 118 set bp_location5 [gdb_get_line_number "set breakpoint 5 here"]
 119 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 120
 121 #
 122 # check to see what breakpoints are set
 123 #
 124 if [target_info exists gdb_stub] {
 125     set main_line $bp_location5
 126 } else {
 127     set main_line $bp_location6
 128 }
 129
 130 if {$hp_aCC_compiler} {
 131     set proto "\\(int\\)"
 132 } else {
 133     set proto ""
 134 }
 135
 136 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
 137 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
 138 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
 139
 140 gdb_test "info break" \
 141     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 142 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 143 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
 144 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
 145 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 146 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 147 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
 148 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
 149 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
 150     "breakpoint info"
 151
 152 # FIXME: The rest of this test doesn't work with anything that can't
 153 # handle arguments.
 154 # Huh? There doesn't *appear* to be anything that passes arguments
 155 # below.
 156 if [istarget "mips-idt-*"] then {
 157     return
 158 }
 159
 160 #
 161 # run until the breakpoint at main is hit. For non-stubs-using targets.
 162 #
 163 gdb_run_cmd
 164 gdb_expect {
 165     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 166         pass "run until function breakpoint"
 167     }
 168     -re "$gdb_prompt $" {
 169         fail "run until function breakpoint"
 170     }
 171     timeout {
 172         fail "run until function breakpoint (timeout)"
 173     }
 174 }
 175
 176 #
 177 # run until the breakpoint at a line number
 178 #
 179 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 180                         "run until breakpoint set at a line number"
 181
 182 #
 183 # Run until the breakpoint set in a function in a file
 184 #
 185 for {set i 6} {$i >= 1} {incr i -1} {
 186         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
 187                         "run until file:function($i) breakpoint"
 188 }
 189
 190 #
 191 # Run until the breakpoint set at a quoted function
 192 #
 193 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*" \
 194                 "run until quoted breakpoint"
 195 #
 196 # run until the file:function breakpoint at a line number in a file
 197 #
 198 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
 199                 "run until file:linenum breakpoint"
 200
 201 # Test break at offset +1
 202 set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
 203
 204 gdb_test "break +1" \
 205     "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
 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 .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
 212     "step onto breakpoint"
 213
 214 # Check to see if breakpoint can be set on ending brace of function
 215 set bp_location10a [gdb_get_line_number "set breakpoint 10a here"]
 216
 217 gdb_test "break $bp_location10a" \
 218     "Breakpoint.*at.* file .*$srcfile, line $bp_location10a\\." \
 219     "setting breakpoint at }"
 220
 221 gdb_test "continue" \
 222     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10a.*$bp_location10a\[\t \]+}.*breakpoint 10a here.*" \
 223     "continue to breakpoint at }"
 224
 225 #
 226 # delete all breakpoints so we can start over, course this can be a test too
 227 #
 228 delete_breakpoints
 229
 230 #
 231 # test temporary breakpoint at function
 232 #
 233
 234 gdb_test "tbreak main" "Temporary breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 235
 236 #
 237 # test break at function in file
 238 #
 239
 240 gdb_test "tbreak $srcfile:factorial" "Temporary breakpoint.*at.* file .*$srcfile, line.*" \
 241         "Temporary breakpoint function in file"
 242
 243 #
 244 # test break at line number
 245 #
 246 send_gdb "tbreak $bp_location1\n"
 247 gdb_expect {
 248     -re "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location1.*$gdb_prompt $" {
 249         pass "Temporary breakpoint line number #1"
 250     }
 251     -re ".*$gdb_prompt $" {
 252         fail "Temporary breakpoint line number #1"
 253     }
 254     timeout {
 255         fail "Temporary breakpoint line number #1 (timeout)"
 256     }
 257 }
 258
 259 gdb_test "tbreak $bp_location6" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location6.*" "Temporary breakpoint line number #2"
 260
 261 #
 262 # test break at line number in file
 263 #
 264 send_gdb "tbreak $srcfile:$bp_location2\n"
 265 gdb_expect {
 266     -re "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location2.*$gdb_prompt $" {
 267         pass "Temporary breakpoint line number in file #1"
 268     }
 269     -re ".*$gdb_prompt $" {
 270         fail "Temporary breakpoint line number in file #1"
 271     }
 272     timeout {
 273         fail "Temporary breakpoint line number in file #1 (timeout)"
 274     }
 275 }
 276
 277 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
 278 gdb_test  "tbreak $srcfile:$bp_location11" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
 279
 280 #
 281 # check to see what breakpoints are set (temporary this time)
 282 #
 283 gdb_test "info break" "Num     Type.*Disp Enb Address.*What.*\[\r\n\]
 284 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 285 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
 286 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
 287 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
 288 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
 289 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
 290     "Temporary breakpoint info"
 291
 292
 293 #***********
 294
 295 # Verify that catchpoints for fork, vfork and exec don't trigger
 296 # inappropriately.  (There are no calls to those system functions
 297 # in this test program.)
 298 #
 299 if ![runto_main] then { fail "break tests suppressed" }
 300
 301 send_gdb "catch\n"
 302 gdb_expect {
 303   -re "Catch requires an event name.*$gdb_prompt $"\
 304           {pass "catch requires an event name"}
 305   -re "$gdb_prompt $"\
 306           {fail "catch requires an event name"}
 307   timeout {fail "(timeout) catch requires an event name"}
 308 }
 309
 310
 311 set name "set catch fork, never expected to trigger"
 312 send_gdb "catch fork\n"
 313 gdb_expect {
 314   -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $"
 315           {pass $name}
 316   -re "Catch of fork not yet implemented.*$gdb_prompt $"
 317           {pass $name}
 318   -re "$gdb_prompt $"
 319           {fail $name}
 320   timeout {fail "(timeout) $name"}
 321 }
 322
 323
 324 set name "set catch vfork, never expected to trigger"
 325 send_gdb "catch vfork\n"
 326
 327 # If we are on HP-UX 10.20, we expect an error message to be
 328 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 329 # because on HP-UX 10.20, we cannot catch vfork events.
 330
 331 if [istarget "hppa*-hp-hpux10.20"] then {
 332     gdb_expect {
 333         -re "Catch of vfork events not supported on HP-UX 10.20..*$gdb_prompt $"
 334                 {pass $name}
 335         -re "$gdb_prompt $"
 336                 {fail $name}
 337         timeout {fail "(timeout) $name"}
 338     }
 339 } else {
 340     gdb_expect {
 341         -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $"
 342                 {pass $name}
 343         -re "Catch of vfork not yet implemented.*$gdb_prompt $"
 344                 {pass $name}
 345         -re "$gdb_prompt $"
 346                 {fail $name}
 347         timeout {fail "(timeout) $name"}
 348     }
 349 }
 350
 351 set name "set catch exec, never expected to trigger"
 352 send_gdb "catch exec\n"
 353 gdb_expect {
 354   -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $"
 355           {pass $name}
 356   -re "Catch of exec not yet implemented.*$gdb_prompt $"
 357           {pass $name}
 358   -re "$gdb_prompt $" {fail $name}
 359   timeout {fail "(timeout) $name"}
 360 }
 361
 362 # Verify that GDB responds gracefully when asked to set a breakpoint
 363 # on a nonexistent source line.
 364 #
 365 send_gdb "break 999\n"
 366 gdb_expect {
 367   -re "No line 999 in file .*$gdb_prompt $"\
 368           {pass "break on non-existent source line"}
 369   -re "$gdb_prompt $"\
 370           {fail "break on non-existent source line"}
 371   timeout {fail "(timeout) break on non-existent source line"}
 372 }
 373
 374 # Run to the desired default location. If not positioned here, the
 375 # tests below don't work.
 376 #
 377 gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" "until bp_location1"
 378
 379
 380 # Verify that GDB allows one to just say "break", which is treated
 381 # as the "default" breakpoint.  Note that GDB gets cute when printing
 382 # the informational message about other breakpoints at the same
 383 # location.  We'll hit that bird with this stone too.
 384 #
 385 send_gdb "break\n"
 386 gdb_expect {
 387   -re "Breakpoint \[0-9\]*.*$gdb_prompt $"\
 388           {pass "break on default location, 1st time"}
 389   -re "$gdb_prompt $"\
 390           {fail "break on default location, 1st time"}
 391   timeout {fail "(timeout) break on default location, 1st time"}
 392 }
 393
 394 send_gdb "break\n"
 395 gdb_expect {
 396   -re "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 397           {pass "break on default location, 2nd time"}
 398   -re "$gdb_prompt $"\
 399           {fail "break on default location, 2nd time"}
 400   timeout {fail "(timeout) break on default location, 2nd time"}
 401 }
 402
 403 send_gdb "break\n"
 404 gdb_expect {
 405   -re "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 406           {pass "break on default location, 3rd time"}
 407   -re "$gdb_prompt $"\
 408           {fail "break on default location, 3rd time"}
 409   timeout {fail "(timeout) break on default location, 3rd time"}
 410 }
 411
 412 send_gdb "break\n"
 413 gdb_expect {
 414   -re "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 415           {pass "break on default location, 4th time"}
 416   -re "$gdb_prompt $"\
 417           {fail "break on default location, 4th time"}
 418   timeout {fail "(timeout) break on default location, 4th time"}
 419 }
 420
 421 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 422 # "silent" about its triggering.
 423 #
 424 if ![runto_main] then { fail "break tests suppressed" }
 425
 426 send_gdb "break $bp_location1\n"
 427 gdb_expect {
 428   -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $"\
 429           {pass "set to-be-silent break bp_location1"}
 430   -re "$gdb_prompt $"\
 431           {fail "set to-be-silent break bp_location1"}
 432   timeout {fail "(timeout) set to-be-silent break bp_location1"}
 433 }
 434
 435 send_gdb "commands $expect_out(1,string)\n"
 436 send_gdb "silent\n"
 437 send_gdb "end\n"
 438 gdb_expect {
 439   -re ".*$gdb_prompt $"\
 440           {pass "set silent break bp_location1"}
 441   timeout {fail "(timeout) set silent break bp_location1"}
 442 }
 443
 444 send_gdb "info break $expect_out(1,string)\n"
 445 gdb_expect {
 446   -re "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*$gdb_prompt $"\
 447           {pass "info silent break bp_location1"}
 448   -re "$gdb_prompt $"\
 449           {fail "info silent break bp_location1"}
 450   timeout {fail "(timeout) info silent break bp_location1"}
 451 }
 452 send_gdb "continue\n"
 453 gdb_expect {
 454   -re "Continuing.\r\n$gdb_prompt $"\
 455           {pass "hit silent break bp_location1"}
 456   -re "$gdb_prompt $"\
 457           {fail "hit silent break bp_location1"}
 458   timeout {fail "(timeout) hit silent break bp_location1"}
 459 }
 460 send_gdb "bt\n"
 461 gdb_expect {
 462   -re "#0  main .* at .*:$bp_location1.*$gdb_prompt $"\
 463           {pass "stopped for silent break bp_location1"}
 464   -re "$gdb_prompt $"\
 465           {fail "stopped for silent break bp_location1"}
 466   timeout {fail "(timeout) stopped for silent break bp_location1"}
 467 }
 468
 469 # Verify that GDB can at least parse a breakpoint with the
 470 # "thread" keyword.  (We won't attempt to test here that a
 471 # thread-specific breakpoint really triggers appropriately.
 472 # The gdb.threads subdirectory contains tests for that.)
 473 #
 474 set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
 475 send_gdb "break $bp_location12 thread 999\n"
 476 gdb_expect {
 477   -re "Unknown thread 999.*$gdb_prompt $"\
 478           {pass "thread-specific breakpoint on non-existent thread disallowed"}
 479   -re "$gdb_prompt $"\
 480           {fail "thread-specific breakpoint on non-existent thread disallowed"}
 481   timeout {fail "(timeout) thread-specific breakpoint on non-existent thread disallowed"}
 482 }
 483 send_gdb "break $bp_location12 thread foo\n"
 484 gdb_expect {
 485   -re "Junk after thread keyword..*$gdb_prompt $"\
 486           {pass "thread-specific breakpoint on bogus thread ID disallowed"}
 487   -re "$gdb_prompt $"\
 488           {fail "thread-specific breakpoint on bogus thread ID disallowed"}
 489   timeout {fail "(timeout) thread-specific breakpoint on bogus thread ID disallowed"}
 490 }
 491
 492 # Verify that GDB responds gracefully to a breakpoint command with
 493 # trailing garbage.
 494 #
 495 send_gdb "break $bp_location12 foo\n"
 496 gdb_expect {
 497   -re "Junk at end of arguments..*$gdb_prompt $"\
 498           {pass "breakpoint with trailing garbage disallowed"}
 499   -re "$gdb_prompt $"\
 500           {fail "breakpoint with trailing garbage disallowed"}
 501   timeout {fail "(timeout) breakpoint with trailing garbage disallowed"}
 502 }
 503
 504 # Verify that GDB responds gracefully to a "clear" command that has
 505 # no matching breakpoint.  (First, get us off the current source line,
 506 # which we know has a breakpoint.)
 507 #
 508 send_gdb "next\n"
 509 gdb_expect {
 510   -re ".*$gdb_prompt $"\
 511           {pass "step over breakpoint"}
 512   timeout {fail "(timeout) step over breakpoint"}
 513 }
 514 send_gdb "clear 81\n"
 515 gdb_expect {
 516   -re "No breakpoint at 81..*$gdb_prompt $"\
 517           {pass "clear line has no breakpoint disallowed"}
 518   -re "$gdb_prompt $"\
 519           {fail "clear line has no breakpoint disallowed"}
 520   timeout {fail "(timeout) clear line has no breakpoint disallowed"}
 521 }
 522 send_gdb "clear\n"
 523 gdb_expect {
 524   -re "No breakpoint at this line..*$gdb_prompt $"\
 525           {pass "clear current line has no breakpoint disallowed"}
 526   -re "$gdb_prompt $"\
 527           {fail "clear current line has no breakpoint disallowed"}
 528   timeout {fail "(timeout) clear current line has no breakpoint disallowed"}
 529 }
 530
 531 # Verify that we can set and clear multiple breakpoints.
 532 #
 533 # We don't test that it deletes the correct breakpoints.  We do at
 534 # least test that it deletes more than one breakpoint.
 535 #
 536 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 537 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 538 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 539
 540 # Verify that a breakpoint can be set via a convenience variable.
 541 #
 542 send_gdb "set \$foo=$bp_location11\n"
 543 gdb_expect {
 544   -re "$gdb_prompt $"\
 545           {pass "set convenience variable \$foo to bp_location11"}
 546   timeout {fail "(timeout) set convenience variable \$foo to bp_location11"}
 547 }
 548 send_gdb "break \$foo\n"
 549 gdb_expect {
 550   -re "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*$gdb_prompt $"\
 551           {pass "set breakpoint via convenience variable"}
 552   -re "$gdb_prompt $"\
 553           {fail "set breakpoint via convenience variable"}
 554   timeout {fail "(timeout) set breakpoint via convenience variable"}
 555 }
 556
 557 # Verify that GDB responds gracefully to an attempt to set a
 558 # breakpoint via a convenience variable whose type is not integer.
 559 #
 560 send_gdb "set \$foo=81.5\n"
 561 gdb_expect {
 562   -re "$gdb_prompt $"\
 563           {pass "set convenience variable \$foo to 81.5"}
 564   timeout {fail "(timeout) set convenience variable \$foo to 81.5"}
 565 }
 566 send_gdb "break \$foo\n"
 567 gdb_expect {
 568   -re "Convenience variables used in line specs must have integer values..*$gdb_prompt $"\
 569           {pass "set breakpoint via non-integer convenience variable disallowed"}
 570   -re "$gdb_prompt $"\
 571           {fail "set breakpoint via non-integer convenience variable disallowed"}
 572   timeout {fail "(timeout) set breakpoint via non-integer convenience variable disallowed"}
 573 }
 574
 575 # Verify that we can set and trigger a breakpoint in a user-called function.
 576 #
 577 send_gdb "break marker2\n"
 578 gdb_expect {
 579     -re "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*$gdb_prompt $"\
 580           {pass "set breakpoint on to-be-called function"}
 581   -re "$gdb_prompt $"\
 582           {fail "set breakpoint on to-be-called function"}
 583   timeout {fail "(timeout) set breakpoint on to-be-called function"}
 584 }
 585 send_gdb "print marker2(99)\n"
 586 gdb_expect {
 587   -re "The program being debugged stopped while in a function called from GDB.\r\nEvaluation of the expression containing the function\r\n.marker2$proto. will be abandoned.\r\nWhen the function is done executing, GDB will silently stop..*$gdb_prompt $"\
 588           {pass "hit breakpoint on called function"}
 589   -re "$gdb_prompt $"\
 590           {fail "hit breakpoint on called function"}
 591   timeout {fail "(timeout) hit breakpoint on called function"}
 592 }
 593
 594 # As long as we're stopped (breakpointed) in a called function,
 595 # verify that we can successfully backtrace & such from here.
 596 #
 597 # In this and the following test, the _sr4export check apparently is needed
 598 # for hppa*-*-hpux.
 599 #
 600 send_gdb "bt\n"
 601 gdb_expect {
 602     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $"\
 603             {pass "backtrace while in called function"}
 604     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $"\
 605             {pass "backtrace while in called function"}
 606     -re "$gdb_prompt $"\
 607             {fail "backtrace while in called function"}
 608     timeout {fail "(timeout) backtrace while in called function"}
 609 }
 610
 611 # Return from the called function.  For remote targets, it's important to do
 612 # this before runto_main, which otherwise may silently stop on the dummy
 613 # breakpoint inserted by GDB at the program's entry point.
 614 #
 615 send_gdb "finish\n"
 616 gdb_expect {
 617     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $"\
 618             {pass "finish from called function"}
 619     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $"\
 620             {pass "finish from called function"}
 621     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $"\
 622             {pass "finish from called function"}
 623     -re "$gdb_prompt $"\
 624             {fail "finish from called function"}
 625     timeout {fail "(timeout) finish from called function"}
 626 }
 627
 628 # Verify that GDB responds gracefully to a "finish" command with
 629 # arguments.
 630 #
 631 if ![runto_main] then { fail "break tests suppressed" }
 632
 633 send_gdb "finish 123\n"
 634 gdb_expect {
 635   -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
 636           {pass "finish with arguments disallowed"}
 637   -re "$gdb_prompt $"\
 638           {fail "finish with arguments disallowed"}
 639   timeout {fail "(timeout) finish with arguments disallowed"}
 640 }
 641
 642 # Verify that GDB responds gracefully to a request to "finish" from
 643 # the outermost frame.  On a stub that never exits, this will just
 644 # run to the stubs routine, so we don't get this error...  Thus the
 645 # second condition.
 646 #
 647
 648 send_gdb "finish\n"
 649 gdb_expect {
 650   -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $"\
 651           {pass "finish from outermost frame disallowed"}
 652   -re "Run till exit from.*\r\n$gdb_prompt $" {
 653      pass "finish from outermost frame disallowed"
 654   }
 655   -re "$gdb_prompt $"\
 656           {fail "finish from outermost frame disallowed"}
 657   timeout {fail "(timeout) finish from outermost frame disallowed"}
 658 }
 659
 660 # Verify that we can explicitly ask GDB to stop on all shared library
 661 # events, and that it does so.
 662 #
 663 if [istarget "hppa*-*-hpux*"] then {
 664   if ![runto_main] then { fail "break tests suppressed" }
 665
 666   send_gdb "set stop-on-solib-events 1\n"
 667   gdb_expect {
 668     -re "$gdb_prompt $"\
 669             {pass "set stop-on-solib-events"}
 670     timeout {fail "(timeout) set stop-on-solib-events"}
 671   }
 672
 673   send_gdb "run\n"
 674   gdb_expect {
 675     -re ".*Start it from the beginning.*y or n. $"\
 676             {send_gdb "y\n"
 677              gdb_expect {
 678                -re ".*Stopped due to shared library event.*$gdb_prompt $"\
 679                        {pass "triggered stop-on-solib-events"}
 680                -re "$gdb_prompt $"\
 681                        {fail "triggered stop-on-solib-events"}
 682                timeout {fail "(timeout) triggered stop-on-solib-events"}
 683              }
 684             }
 685     -re "$gdb_prompt $"\
 686             {fail "rerun for stop-on-solib-events"}
 687     timeout {fail "(timeout) rerun for stop-on-solib-events"}
 688   }
 689
 690   send_gdb "set stop-on-solib-events 0\n"
 691   gdb_expect {
 692     -re "$gdb_prompt $"\
 693             {pass "reset stop-on-solib-events"}
 694     timeout {fail "(timeout) reset stop-on-solib-events"}
 695   }
 696 }
 697
 698 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 699 # gracefully responds to requests to create them.
 700 #
 701 if [istarget "hppa*-*-hpux*"] then {
 702   if ![runto_main] then { fail "break tests suppressed" }
 703
 704   send_gdb "hbreak\n"
 705   gdb_expect {
 706     -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
 707             {pass "hw breaks disallowed"}
 708     -re "$gdb_prompt $"\
 709             {fail "hw breaks disallowed"}
 710     timeout {fail "(timeout) hw breaks disallowed"}
 711   }
 712
 713   send_gdb "thbreak\n"
 714   gdb_expect {
 715     -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
 716             {pass "temporary hw breaks disallowed"}
 717     -re "$gdb_prompt $"\
 718             {fail "temporary hw breaks disallowed"}
 719     timeout {fail "(timeout) temporary hw breaks disallowed"}
 720   }
 721 }
 722
 723 #********
 724
 725
 726 #
 727 # Test "next" over recursive function call.
 728 #
 729
 730 proc test_next_with_recursion {} {
 731     global gdb_prompt
 732     global decimal
 733     global binfile
 734
 735     gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 736     delete_breakpoints
 737
 738     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 739
 740     # Run until we call factorial with 6
 741
 742     gdb_run_cmd
 743     gdb_expect {
 744         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 745         -re ".*$gdb_prompt $" {
 746             fail "run to factorial(6)";
 747             gdb_suppress_tests;
 748         }
 749         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 750     }
 751
 752     # Continue until we call factorial recursively with 5.
 753
 754     if [gdb_test "continue" \
 755         "Continuing.*Break.* factorial .value=5. .*" \
 756         "continue to factorial(5)"] then { gdb_suppress_tests }
 757
 758     # Do a backtrace just to confirm how many levels deep we are.
 759
 760     if [gdb_test "backtrace" \
 761         "#0\[ \t\]+ factorial .value=5..*" \
 762         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 763
 764     # Now a "next" should position us at the recursive call, which
 765     # we will be performing with 4.
 766
 767     if [gdb_test "next" \
 768         ".* factorial .value - 1.;.*" \
 769         "next to recursive call"] then { gdb_suppress_tests }
 770
 771     # Disable the breakpoint at the entry to factorial by deleting them all.
 772     # The "next" should run until we return to the next line from this
 773     # recursive call to factorial with 4.
 774     # Buggy versions of gdb will stop instead at the innermost frame on
 775     # the line where we are trying to "next" to.
 776
 777     delete_breakpoints
 778
 779     if [istarget "mips*tx39-*"] {
 780         set timeout 60
 781     }
 782     # We used to set timeout here for all other targets as well.  This
 783     # is almost certainly wrong.  The proper timeout depends on the
 784     # target system in use, and how we communicate with it, so there
 785     # is no single value appropriate for all targets.  The timeout
 786     # should be established by the Dejagnu config file(s) for the
 787     # board, and respected by the test suite.
 788     #
 789     # For example, if I'm running GDB over an SSH tunnel talking to a
 790     # portmaster in California talking to an ancient 68k board running
 791     # a crummy ROM monitor (a situation I can only wish were
 792     # hypothetical), then I need a large timeout.  But that's not the
 793     # kind of knowledge that belongs in this file.
 794
 795     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 796             "next over recursive call"
 797
 798     # OK, we should be back in the same stack frame we started from.
 799     # Do a backtrace just to confirm.
 800
 801     set result [gdb_test "backtrace" \
 802             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 803             "backtrace from factorial(5.1)"]
 804     if { $result != 0 } { gdb_suppress_tests }
 805
 806     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 807   gdb_continue_to_end "recursive next test"
 808    gdb_stop_suppressing_tests;
 809 }
 810
 811 test_next_with_recursion
 812
 813
 814 #********
 815
 816 # build a new file with optimization enabled so that we can try breakpoints
 817 # on targets with optimized prologues
 818
 819 if { [prepare_for_testing break.exp "breako2" {break.c break1.c} {debug nowarnings optimize=-O2}] } {
 820     return -1
 821 }
 822
 823 #
 824 # test break at function
 825 #
 826 gdb_test "break main" \
 827     "Breakpoint.*at.* file .*, line.*" \
 828     "breakpoint function, optimized file"
 829
 830 #
 831 # test break at function
 832 #
 833 gdb_test "break marker4" \
 834     "Breakpoint.*at.* file .*$srcfile1, line.*" \
 835     "breakpoint small function, optimized file"
 836
 837 #
 838 # run until the breakpoint at main is hit. For non-stubs-using targets.
 839 #
 840 gdb_run_cmd
 841 gdb_expect {
 842     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 843         pass "run until function breakpoint, optimized file"
 844     }
 845     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
 846         pass "run until function breakpoint, optimized file (code motion)"
 847     }
 848     -re "$gdb_prompt $" {
 849         fail "run until function breakpoint, optimized file"
 850     }
 851     timeout {
 852         fail "run until function breakpoint, optimized file (timeout)"
 853     }
 854 }
 855
 856 #
 857 # run until the breakpoint at a small function
 858 #
 859
 860 #
 861 # Add a second pass pattern.  The behavior differs here between stabs
 862 # and dwarf for one-line functions.  Stabs preserves two line symbols
 863 # (one before the prologue and one after) with the same line number,
 864 # but dwarf regards these as duplicates and discards one of them.
 865 # Therefore the address after the prologue (where the breakpoint is)
 866 # has no exactly matching line symbol, and GDB reports the breakpoint
 867 # as if it were in the middle of a line rather than at the beginning.
 868
 869 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
 870 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
 871 send_gdb "continue\n"
 872 gdb_expect {
 873     -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 874         pass "run until breakpoint set at small function, optimized file"
 875     }
 876     -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 877         pass "run until breakpoint set at small function, optimized file"
 878     }
 879     -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*" {
 880         # marker4() is defined at line 46 when compiled with -DPROTOTYPES
 881         pass "run until breakpoint set at small function, optimized file (line bp_location14)"
 882     }
 883     -re "Breakpoint $decimal, factorial \\(.*\\) .*\{\r\n$gdb_prompt" {
 884         # GCC 4.3 emits bad line number information - see gcc/36748.
 885         if { [test_compiler_info "gcc-4-3-*"] } {
 886             setup_xfail *-*-*
 887         }
 888         fail "run until breakpoint set at small function, optimized file"
 889     }
 890     -re ".*$gdb_prompt " {
 891         fail "run until breakpoint set at small function, optimized file"
 892     }
 893     timeout {
 894         fail "run until breakpoint set at small function, optimized file (timeout)"
 895     }
 896 }
 897
 898 clean_restart breako2
 899
 900 #
 901 # test that 'rbreak' on a symbol that may be from a shared library doesn't
 902 # cause a "Junk at end of arguments." error.
 903 #
 904 # On x86 GNU/Linux, this test will choke on e.g. __libc_start_main@plt.
 905 #
 906 # Note that this test won't necessarily choke on all targets even if
 907 # all the rbreak issue is present.  rbreak needs to match and set a
 908 # breakpoint on a symbol causes 'break' to choke.
 909 #
 910
 911 gdb_test "set breakpoint pending on" "" "rbreak junk pending setup"
 912
 913 # We expect at least one breakpoint to be set when we "rbreak main".
 914 gdb_test "rbreak main" \
 915     ".*Breakpoint.*at.* file .*$srcfile, line.*" \
 916     "rbreak junk set breakpoint"
 917
 918 # Run to a breakpoint.  Fail if we see "Junk at end of arguments".
 919 gdb_run_cmd
 920 gdb_expect {
 921     -re "Junk at end of arguments" {
 922         fail "rbreak junk"
 923     }
 924     -re ".*Breakpoint \[0-9\]+,.*$gdb_prompt $" {
 925         pass "rbreak junk"
 926     }
 927     timeout {
 928         fail "rbreak junk (timeout)"
 929     }
 930 }
 931
 932
 933 # Reset the default arguments for VxWorks
 934 if [istarget "*-*-vxworks*"] {
 935     set timeout 10
 936     verbose "Timeout is now $timeout seconds" 2
 937     send_gdb "set args main\n"
 938     gdb_expect -re ".*$gdb_prompt $" {}
 939 }