gdb/testsuite/gdb.base/break.exp

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