gnu/dist/gdb6/gdb/testsuite/gdb.base/break.exp

   1 #   Copyright 1988, 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2002, 2003
   3 #   Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 # Please email any bugs, comments, and/or additions to this file to:
  20 # bug-gdb@prep.ai.mit.edu
  21
  22 # This file was written by Rob Savoye. (rob@cygnus.com)
  23
  24 if $tracelevel then {
  25     strace $tracelevel
  26 }
  27
  28
  29 #
  30 # test running programs
  31 #
  32 set prms_id 0
  33 set bug_id 0
  34
  35 set testfile "break"
  36 set srcfile ${testfile}.c
  37 set srcfile1 ${testfile}1.c
  38 set binfile ${objdir}/${subdir}/${testfile}
  39
  40 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
  41      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  42 }
  43
  44 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
  45      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  46 }
  47
  48 if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
  49      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
  50 }
  51
  52 if [get_compiler_info ${binfile}] {
  53     return -1
  54 }
  55
  56 gdb_exit
  57 gdb_start
  58 gdb_reinitialize_dir $srcdir/$subdir
  59 gdb_load ${binfile}
  60
  61 if [target_info exists gdb_stub] {
  62     gdb_step_for_stub;
  63 }
  64 #
  65 # test simple breakpoint setting commands
  66 #
  67
  68 # Test deleting all breakpoints when there are none installed,
  69 # GDB should not prompt for confirmation.
  70 # Note that lib/gdb.exp provides a "delete_breakpoints" proc
  71 # for general use elsewhere.
  72
  73 send_gdb "delete breakpoints\n"
  74 gdb_expect {
  75      -re "Delete all breakpoints.*$" {
  76             send_gdb "y\n"
  77             gdb_expect {
  78                 -re "$gdb_prompt $" {
  79                     fail "Delete all breakpoints when none (unexpected prompt)"
  80                 }
  81                 timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
  82             }
  83         }
  84      -re ".*$gdb_prompt $"       { pass "Delete all breakpoints when none" }
  85     timeout                 { fail "Delete all breakpoints when none (timeout)" }
  86 }
  87
  88 #
  89 # test break at function
  90 #
  91 gdb_test "break main" \
  92     "Breakpoint.*at.* file .*$srcfile, line.*" \
  93     "breakpoint function"
  94
  95 #
  96 # test break at quoted function
  97 #
  98 gdb_test "break \"marker2\"" \
  99     "Breakpoint.*at.* file .*$srcfile1, line.*" \
 100     "breakpoint quoted function"
 101
 102 #
 103 # test break at function in file
 104 #
 105 gdb_test "break $srcfile:factorial" \
 106     "Breakpoint.*at.* file .*$srcfile, line.*" \
 107     "breakpoint function in file"
 108
 109 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
 110
 111 #
 112 # test break at line number
 113 #
 114 # Note that the default source file is the last one whose source text
 115 # was printed.  For native debugging, before we've executed the
 116 # program, this is the file containing main, but for remote debugging,
 117 # it's wherever the processor was stopped when we connected to the
 118 # board.  So, to be sure, we do a list command.
 119 #
 120 gdb_test "list main" \
 121     ".*main \\(argc, argv, envp\\).*" \
 122     "use `list' to establish default source file"
 123 gdb_test "break $bp_location1" \
 124     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
 125     "breakpoint line number"
 126
 127 #
 128 # test duplicate breakpoint
 129 #
 130 gdb_test "break $bp_location1" \
 131     "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
 132     "breakpoint duplicate"
 133
 134 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
 135
 136 #
 137 # test break at line number in file
 138 #
 139 gdb_test "break $srcfile:$bp_location2" \
 140     "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
 141     "breakpoint line number in file"
 142
 143 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 144 set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]
 145
 146 #
 147 # Test putting a break at the start of a multi-line if conditional.
 148 # Verify the breakpoint was put at the start of the conditional.
 149 #
 150 gdb_test "break multi_line_if_conditional" \
 151     "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
 152     "breakpoint at start of multi line if conditional"
 153
 154 gdb_test "break multi_line_while_conditional" \
 155     "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
 156     "breakpoint at start of multi line while conditional"
 157
 158 set bp_location5 [gdb_get_line_number "set breakpoint 5 here"]
 159 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 160
 161 #
 162 # check to see what breakpoints are set
 163 #
 164 if [target_info exists gdb_stub] {
 165     set main_line $bp_location5
 166 } else {
 167     set main_line $bp_location6
 168 }
 169
 170 if {$hp_aCC_compiler} {
 171     set proto "\\(int\\)"
 172 } else {
 173     set proto ""
 174 }
 175
 176 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
 177 set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
 178 set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
 179
 180 gdb_test "info break" \
 181     "Num Type\[ \]+Disp Enb Address\[ \]+What.*
 182 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 183 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
 184 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
 185 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 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_location2.*
 188 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
 189 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
 190     "breakpoint info"
 191
 192 # FIXME: The rest of this test doesn't work with anything that can't
 193 # handle arguments.
 194 # Huh? There doesn't *appear* to be anything that passes arguments
 195 # below.
 196 if [istarget "mips-idt-*"] then {
 197     return
 198 }
 199
 200 #
 201 # run until the breakpoint at main is hit. For non-stubs-using targets.
 202 #
 203 if ![target_info exists use_gdb_stub] {
 204   if [istarget "*-*-vxworks*"] then {
 205     send_gdb "run vxmain \"2\"\n"
 206     set timeout 120
 207     verbose "Timeout is now $timeout seconds" 2
 208   } else {
 209         send_gdb "run\n"
 210   }
 211   gdb_expect {
 212     -re "The program .* has been started already.*y or n. $" {
 213         send_gdb "y\n"
 214         exp_continue
 215     }
 216     -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $"\
 217                             { pass "run until function breakpoint" }
 218     -re ".*$gdb_prompt $"       { fail "run until function breakpoint" }
 219     timeout                 { fail "run until function breakpoint (timeout)" }
 220   }
 221 } else {
 222     if ![target_info exists gdb_stub] {
 223         gdb_test continue ".*Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.*\{.*" "stub continue"
 224     }
 225 }
 226
 227 #
 228 # run until the breakpoint at a line number
 229 #
 230 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 231                         "run until breakpoint set at a line number"
 232
 233 #
 234 # Run until the breakpoint set in a function in a file
 235 #
 236 for {set i 6} {$i >= 1} {incr i -1} {
 237         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
 238                         "run until file:function($i) breakpoint"
 239 }
 240
 241 #
 242 # Run until the breakpoint set at a quoted function
 243 #
 244 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*" \
 245                 "run until quoted breakpoint"
 246 #
 247 # run until the file:function breakpoint at a line number in a file
 248 #
 249 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
 250                 "run until file:linenum breakpoint"
 251
 252 # Test break at offset +1
 253 set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
 254
 255 gdb_test "break +1" \
 256     "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
 257     "breakpoint offset +1"
 258
 259 # Check to see if breakpoint is hit when stepped onto
 260
 261 gdb_test "step" \
 262     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
 263     "step onto breakpoint"
 264
 265 #
 266 # delete all breakpoints so we can start over, course this can be a test too
 267 #
 268 delete_breakpoints
 269
 270 #
 271 # test temporary breakpoint at function
 272 #
 273
 274 gdb_test "tbreak main" "Breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 275
 276 #
 277 # test break at function in file
 278 #
 279
 280 gdb_test "tbreak $srcfile:factorial" "Breakpoint.*at.* file .*$srcfile, line.*" \
 281         "Temporary breakpoint function in file"
 282
 283 #
 284 # test break at line number
 285 #
 286 send_gdb "tbreak $bp_location1\n"
 287 gdb_expect {
 288     -re "Breakpoint.*at.* file .*$srcfile, line $bp_location1.*$gdb_prompt $" { pass "Temporary breakpoint line number #1" }
 289         -re ".*$gdb_prompt $"   { pass "Temporary breakpoint line number #1" }
 290         timeout     { fail "breakpoint line number #1 (timeout)" }
 291 }
 292
 293 gdb_test "tbreak $bp_location6" "Breakpoint.*at.* file .*$srcfile, line $bp_location6.*" "Temporary breakpoint line number #2"
 294
 295 #
 296 # test break at line number in file
 297 #
 298 send_gdb "tbreak $srcfile:$bp_location2\n"
 299 gdb_expect {
 300     -re "Breakpoint.*at.* file .*$srcfile, line $bp_location2.*$gdb_prompt $" { pass "Temporary breakpoint line number in file #1" }
 301         -re ".*$gdb_prompt $"   { pass "Temporary breakpoint line number in file #1" }
 302         timeout     { fail "Temporary breakpoint line number in file #1 (timeout)" }
 303 }
 304
 305 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
 306 gdb_test  "tbreak $srcfile:$bp_location11" "Breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
 307
 308 #
 309 # check to see what breakpoints are set (temporary this time)
 310 #
 311 gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
 312 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 313 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
 314 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
 315 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
 316 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
 317 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
 318     "Temporary breakpoint info"
 319
 320
 321 #***********
 322
 323 # Verify that catchpoints for fork, vfork and exec don't trigger
 324 # inappropriately.  (There are no calls to those system functions
 325 # in this test program.)
 326 #
 327 if ![runto_main] then { fail "break tests suppressed" }
 328
 329 send_gdb "catch\n"
 330 gdb_expect {
 331   -re "Catch requires an event name.*$gdb_prompt $"\
 332           {pass "catch requires an event name"}
 333   -re "$gdb_prompt $"\
 334           {fail "catch requires an event name"}
 335   timeout {fail "(timeout) catch requires an event name"}
 336 }
 337
 338
 339 set name "set catch fork, never expected to trigger"
 340 send_gdb "catch fork\n"
 341 gdb_expect {
 342   -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $"
 343           {pass $name}
 344   -re "Catch of fork not yet implemented.*$gdb_prompt $"
 345           {pass $name}
 346   -re "$gdb_prompt $"
 347           {fail $name}
 348   timeout {fail "(timeout) $name"}
 349 }
 350
 351
 352 set name "set catch vfork, never expected to trigger"
 353 send_gdb "catch vfork\n"
 354
 355 # If we are on HP-UX 10.20, we expect an error message to be
 356 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 357 # because on HP-UX 10.20, we cannot catch vfork events.
 358
 359 if [istarget "hppa*-hp-hpux10.20"] then {
 360     gdb_expect {
 361         -re "Catch of vfork events not supported on HP-UX 10.20..*$gdb_prompt $"
 362                 {pass $name}
 363         -re "$gdb_prompt $"
 364                 {fail $name}
 365         timeout {fail "(timeout) $name"}
 366     }
 367 } else {
 368     gdb_expect {
 369         -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $"
 370                 {pass $name}
 371         -re "Catch of vfork not yet implemented.*$gdb_prompt $"
 372                 {pass $name}
 373         -re "$gdb_prompt $"
 374                 {fail $name}
 375         timeout {fail "(timeout) $name"}
 376     }
 377 }
 378
 379 set name "set catch exec, never expected to trigger"
 380 send_gdb "catch exec\n"
 381 gdb_expect {
 382   -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $"
 383           {pass $name}
 384   -re "Catch of exec not yet implemented.*$gdb_prompt $"
 385           {pass $name}
 386   -re "$gdb_prompt $" {fail $name}
 387   timeout {fail "(timeout) $name"}
 388 }
 389
 390 # Verify that GDB responds gracefully when asked to set a breakpoint
 391 # on a nonexistent source line.
 392 #
 393 send_gdb "break 999\n"
 394 gdb_expect {
 395   -re "No line 999 in file .*$gdb_prompt $"\
 396           {pass "break on non-existent source line"}
 397   -re "$gdb_prompt $"\
 398           {fail "break on non-existent source line"}
 399   timeout {fail "(timeout) break on non-existent source line"}
 400 }
 401
 402 # Run to the desired default location. If not positioned here, the
 403 # tests below don't work.
 404 #
 405 gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" "until bp_location1"
 406
 407
 408 # Verify that GDB allows one to just say "break", which is treated
 409 # as the "default" breakpoint.  Note that GDB gets cute when printing
 410 # the informational message about other breakpoints at the same
 411 # location.  We'll hit that bird with this stone too.
 412 #
 413 send_gdb "break\n"
 414 gdb_expect {
 415   -re "Breakpoint \[0-9\]*.*$gdb_prompt $"\
 416           {pass "break on default location, 1st time"}
 417   -re "$gdb_prompt $"\
 418           {fail "break on default location, 1st time"}
 419   timeout {fail "(timeout) break on default location, 1st time"}
 420 }
 421
 422 send_gdb "break\n"
 423 gdb_expect {
 424   -re "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 425           {pass "break on default location, 2nd time"}
 426   -re "$gdb_prompt $"\
 427           {fail "break on default location, 2nd time"}
 428   timeout {fail "(timeout) break on default location, 2nd time"}
 429 }
 430
 431 send_gdb "break\n"
 432 gdb_expect {
 433   -re "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 434           {pass "break on default location, 3rd time"}
 435   -re "$gdb_prompt $"\
 436           {fail "break on default location, 3rd time"}
 437   timeout {fail "(timeout) break on default location, 3rd time"}
 438 }
 439
 440 send_gdb "break\n"
 441 gdb_expect {
 442   -re "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
 443           {pass "break on default location, 4th time"}
 444   -re "$gdb_prompt $"\
 445           {fail "break on default location, 4th time"}
 446   timeout {fail "(timeout) break on default location, 4th time"}
 447 }
 448
 449 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 450 # "silent" about its triggering.
 451 #
 452 if ![runto_main] then { fail "break tests suppressed" }
 453
 454 send_gdb "break $bp_location1\n"
 455 gdb_expect {
 456   -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $"\
 457           {pass "set to-be-silent break bp_location1"}
 458   -re "$gdb_prompt $"\
 459           {fail "set to-be-silent break bp_location1"}
 460   timeout {fail "(timeout) set to-be-silent break bp_location1"}
 461 }
 462
 463 send_gdb "commands $expect_out(1,string)\n"
 464 send_gdb "silent\n"
 465 send_gdb "end\n"
 466 gdb_expect {
 467   -re ".*$gdb_prompt $"\
 468           {pass "set silent break bp_location1"}
 469   timeout {fail "(timeout) set silent break bp_location1"}
 470 }
 471
 472 send_gdb "info break $expect_out(1,string)\n"
 473 gdb_expect {
 474   -re "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*$gdb_prompt $"\
 475           {pass "info silent break bp_location1"}
 476   -re "$gdb_prompt $"\
 477           {fail "info silent break bp_location1"}
 478   timeout {fail "(timeout) info silent break bp_location1"}
 479 }
 480 send_gdb "continue\n"
 481 gdb_expect {
 482   -re "Continuing.\r\n$gdb_prompt $"\
 483           {pass "hit silent break bp_location1"}
 484   -re "$gdb_prompt $"\
 485           {fail "hit silent break bp_location1"}
 486   timeout {fail "(timeout) hit silent break bp_location1"}
 487 }
 488 send_gdb "bt\n"
 489 gdb_expect {
 490   -re "#0  main .* at .*:$bp_location1.*$gdb_prompt $"\
 491           {pass "stopped for silent break bp_location1"}
 492   -re "$gdb_prompt $"\
 493           {fail "stopped for silent break bp_location1"}
 494   timeout {fail "(timeout) stopped for silent break bp_location1"}
 495 }
 496
 497 # Verify that GDB can at least parse a breakpoint with the
 498 # "thread" keyword.  (We won't attempt to test here that a
 499 # thread-specific breakpoint really triggers appropriately.
 500 # The gdb.threads subdirectory contains tests for that.)
 501 #
 502 set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
 503 send_gdb "break $bp_location12 thread 999\n"
 504 gdb_expect {
 505   -re "Unknown thread 999.*$gdb_prompt $"\
 506           {pass "thread-specific breakpoint on non-existent thread disallowed"}
 507   -re "$gdb_prompt $"\
 508           {fail "thread-specific breakpoint on non-existent thread disallowed"}
 509   timeout {fail "(timeout) thread-specific breakpoint on non-existent thread disallowed"}
 510 }
 511 send_gdb "break $bp_location12 thread foo\n"
 512 gdb_expect {
 513   -re "Junk after thread keyword..*$gdb_prompt $"\
 514           {pass "thread-specific breakpoint on bogus thread ID disallowed"}
 515   -re "$gdb_prompt $"\
 516           {fail "thread-specific breakpoint on bogus thread ID disallowed"}
 517   timeout {fail "(timeout) thread-specific breakpoint on bogus thread ID disallowed"}
 518 }
 519
 520 # Verify that GDB responds gracefully to a breakpoint command with
 521 # trailing garbage.
 522 #
 523 send_gdb "break $bp_location12 foo\n"
 524 gdb_expect {
 525   -re "Junk at end of arguments..*$gdb_prompt $"\
 526           {pass "breakpoint with trailing garbage disallowed"}
 527   -re "$gdb_prompt $"\
 528           {fail "breakpoint with trailing garbage disallowed"}
 529   timeout {fail "(timeout) breakpoint with trailing garbage disallowed"}
 530 }
 531
 532 # Verify that GDB responds gracefully to a "clear" command that has
 533 # no matching breakpoint.  (First, get us off the current source line,
 534 # which we know has a breakpoint.)
 535 #
 536 send_gdb "next\n"
 537 gdb_expect {
 538   -re ".*$gdb_prompt $"\
 539           {pass "step over breakpoint"}
 540   timeout {fail "(timeout) step over breakpoint"}
 541 }
 542 send_gdb "clear 81\n"
 543 gdb_expect {
 544   -re "No breakpoint at 81..*$gdb_prompt $"\
 545           {pass "clear line has no breakpoint disallowed"}
 546   -re "$gdb_prompt $"\
 547           {fail "clear line has no breakpoint disallowed"}
 548   timeout {fail "(timeout) clear line has no breakpoint disallowed"}
 549 }
 550 send_gdb "clear\n"
 551 gdb_expect {
 552   -re "No breakpoint at this line..*$gdb_prompt $"\
 553           {pass "clear current line has no breakpoint disallowed"}
 554   -re "$gdb_prompt $"\
 555           {fail "clear current line has no breakpoint disallowed"}
 556   timeout {fail "(timeout) clear current line has no breakpoint disallowed"}
 557 }
 558
 559 # Verify that we can set and clear multiple breakpoints.
 560 #
 561 # We don't test that it deletes the correct breakpoints.  We do at
 562 # least test that it deletes more than one breakpoint.
 563 #
 564 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 565 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 566 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 567
 568 # Verify that a breakpoint can be set via a convenience variable.
 569 #
 570 send_gdb "set \$foo=$bp_location11\n"
 571 gdb_expect {
 572   -re "$gdb_prompt $"\
 573           {pass "set convenience variable \$foo to bp_location11"}
 574   timeout {fail "(timeout) set convenience variable \$foo to bp_location11"}
 575 }
 576 send_gdb "break \$foo\n"
 577 gdb_expect {
 578   -re "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*$gdb_prompt $"\
 579           {pass "set breakpoint via convenience variable"}
 580   -re "$gdb_prompt $"\
 581           {fail "set breakpoint via convenience variable"}
 582   timeout {fail "(timeout) set breakpoint via convenience variable"}
 583 }
 584
 585 # Verify that GDB responds gracefully to an attempt to set a
 586 # breakpoint via a convenience variable whose type is not integer.
 587 #
 588 send_gdb "set \$foo=81.5\n"
 589 gdb_expect {
 590   -re "$gdb_prompt $"\
 591           {pass "set convenience variable \$foo to 81.5"}
 592   timeout {fail "(timeout) set convenience variable \$foo to 81.5"}
 593 }
 594 send_gdb "break \$foo\n"
 595 gdb_expect {
 596   -re "Convenience variables used in line specs must have integer values..*$gdb_prompt $"\
 597           {pass "set breakpoint via non-integer convenience variable disallowed"}
 598   -re "$gdb_prompt $"\
 599           {fail "set breakpoint via non-integer convenience variable disallowed"}
 600   timeout {fail "(timeout) set breakpoint via non-integer convenience variable disallowed"}
 601 }
 602
 603 # Verify that we can set and trigger a breakpoint in a user-called function.
 604 #
 605 send_gdb "break marker2\n"
 606 gdb_expect {
 607     -re "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*$gdb_prompt $"\
 608           {pass "set breakpoint on to-be-called function"}
 609   -re "$gdb_prompt $"\
 610           {fail "set breakpoint on to-be-called function"}
 611   timeout {fail "(timeout) set breakpoint on to-be-called function"}
 612 }
 613 send_gdb "print marker2(99)\n"
 614 gdb_expect {
 615   -re "The program being debugged stopped while in a function called from GDB.\r\nWhen the function .marker2$proto. is done executing, GDB will silently\r\nstop .instead of continuing to evaluate the expression containing\r\nthe function call...*$gdb_prompt $"\
 616           {pass "hit breakpoint on called function"}
 617   -re "$gdb_prompt $"\
 618           {fail "hit breakpoint on called function"}
 619   timeout {fail "(timeout) hit breakpoint on called function"}
 620 }
 621
 622 # As long as we're stopped (breakpointed) in a called function,
 623 # verify that we can successfully backtrace & such from here.
 624 #
 625 # In this and the following test, the _sr4export check apparently is needed
 626 # for hppa*-*-hpux.
 627 #
 628 send_gdb "bt\n"
 629 gdb_expect {
 630     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $"\
 631             {pass "backtrace while in called function"}
 632     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $"\
 633             {pass "backtrace while in called function"}
 634     -re "$gdb_prompt $"\
 635             {fail "backtrace while in called function"}
 636     timeout {fail "(timeout) backtrace while in called function"}
 637 }
 638
 639 # Return from the called function.  For remote targets, it's important to do
 640 # this before runto_main, which otherwise may silently stop on the dummy
 641 # breakpoint inserted by GDB at the program's entry point.
 642 #
 643 send_gdb "finish\n"
 644 gdb_expect {
 645     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $"\
 646             {pass "finish from called function"}
 647     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $"\
 648             {pass "finish from called function"}
 649     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $"\
 650             {pass "finish from called function"}
 651     -re "$gdb_prompt $"\
 652             {fail "finish from called function"}
 653     timeout {fail "(timeout) finish from called function"}
 654 }
 655
 656 # Verify that GDB responds gracefully to a "finish" command with
 657 # arguments.
 658 #
 659 if ![runto_main] then { fail "break tests suppressed" }
 660
 661 send_gdb "finish 123\n"
 662 gdb_expect {
 663   -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
 664           {pass "finish with arguments disallowed"}
 665   -re "$gdb_prompt $"\
 666           {fail "finish with arguments disallowed"}
 667   timeout {fail "(timeout) finish with arguments disallowed"}
 668 }
 669
 670 # Verify that GDB responds gracefully to a request to "finish" from
 671 # the outermost frame.  On a stub that never exits, this will just
 672 # run to the stubs routine, so we don't get this error...  Thus the
 673 # second condition.
 674 #
 675
 676 send_gdb "finish\n"
 677 gdb_expect {
 678   -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $"\
 679           {pass "finish from outermost frame disallowed"}
 680   -re "Run till exit from.*\r\n$gdb_prompt $" {
 681      pass "finish from outermost frame disallowed"
 682   }
 683   -re "$gdb_prompt $"\
 684           {fail "finish from outermost frame disallowed"}
 685   timeout {fail "(timeout) finish from outermost frame disallowed"}
 686 }
 687
 688 # Verify that we can explicitly ask GDB to stop on all shared library
 689 # events, and that it does so.
 690 #
 691 if [istarget "hppa*-*-hpux*"] then {
 692   if ![runto_main] then { fail "break tests suppressed" }
 693
 694   send_gdb "set stop-on-solib-events 1\n"
 695   gdb_expect {
 696     -re "$gdb_prompt $"\
 697             {pass "set stop-on-solib-events"}
 698     timeout {fail "(timeout) set stop-on-solib-events"}
 699   }
 700
 701   send_gdb "run\n"
 702   gdb_expect {
 703     -re ".*Start it from the beginning.*y or n. $"\
 704             {send_gdb "y\n"
 705              gdb_expect {
 706                -re ".*Stopped due to shared library event.*$gdb_prompt $"\
 707                        {pass "triggered stop-on-solib-events"}
 708                -re "$gdb_prompt $"\
 709                        {fail "triggered stop-on-solib-events"}
 710                timeout {fail "(timeout) triggered stop-on-solib-events"}
 711              }
 712             }
 713     -re "$gdb_prompt $"\
 714             {fail "rerun for stop-on-solib-events"}
 715     timeout {fail "(timeout) rerun for stop-on-solib-events"}
 716   }
 717
 718   send_gdb "set stop-on-solib-events 0\n"
 719   gdb_expect {
 720     -re "$gdb_prompt $"\
 721             {pass "reset stop-on-solib-events"}
 722     timeout {fail "(timeout) reset stop-on-solib-events"}
 723   }
 724 }
 725
 726 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 727 # gracefully responds to requests to create them.
 728 #
 729 if [istarget "hppa*-*-hpux*"] then {
 730   if ![runto_main] then { fail "break tests suppressed" }
 731
 732   send_gdb "hbreak\n"
 733   gdb_expect {
 734     -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
 735             {pass "hw breaks disallowed"}
 736     -re "$gdb_prompt $"\
 737             {fail "hw breaks disallowed"}
 738     timeout {fail "(timeout) hw breaks disallowed"}
 739   }
 740
 741   send_gdb "thbreak\n"
 742   gdb_expect {
 743     -re "No hardware breakpoint support in the target.*$gdb_prompt $"\
 744             {pass "temporary hw breaks disallowed"}
 745     -re "$gdb_prompt $"\
 746             {fail "temporary hw breaks disallowed"}
 747     timeout {fail "(timeout) temporary hw breaks disallowed"}
 748   }
 749 }
 750
 751 #********
 752
 753
 754 #
 755 # Test "next" over recursive function call.
 756 #
 757
 758 proc test_next_with_recursion {} {
 759     global gdb_prompt
 760     global decimal
 761     global binfile
 762
 763     if [target_info exists use_gdb_stub] {
 764         # Reload the program.
 765         delete_breakpoints
 766         gdb_load ${binfile};
 767     } else {
 768         # FIXME: should be using runto
 769         gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 770
 771         delete_breakpoints
 772     }
 773
 774     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 775
 776     # Run until we call factorial with 6
 777
 778     if [istarget "*-*-vxworks*"] then {
 779         send_gdb "run vxmain \"6\"\n"
 780     } else {
 781         gdb_run_cmd
 782     }
 783     gdb_expect {
 784         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 785         -re ".*$gdb_prompt $" {
 786             fail "run to factorial(6)";
 787             gdb_suppress_tests;
 788         }
 789         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 790     }
 791
 792     # Continue until we call factorial recursively with 5.
 793
 794     if [gdb_test "continue" \
 795         "Continuing.*Break.* factorial .value=5. .*" \
 796         "continue to factorial(5)"] then { gdb_suppress_tests }
 797
 798     # Do a backtrace just to confirm how many levels deep we are.
 799
 800     if [gdb_test "backtrace" \
 801         "#0\[ \t\]+ factorial .value=5..*" \
 802         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 803
 804     # Now a "next" should position us at the recursive call, which
 805     # we will be performing with 4.
 806
 807     if [gdb_test "next" \
 808         ".* factorial .value - 1.;.*" \
 809         "next to recursive call"] then { gdb_suppress_tests }
 810
 811     # Disable the breakpoint at the entry to factorial by deleting them all.
 812     # The "next" should run until we return to the next line from this
 813     # recursive call to factorial with 4.
 814     # Buggy versions of gdb will stop instead at the innermost frame on
 815     # the line where we are trying to "next" to.
 816
 817     delete_breakpoints
 818
 819     if [istarget "mips*tx39-*"] {
 820         set timeout 60
 821     }
 822     # We used to set timeout here for all other targets as well.  This
 823     # is almost certainly wrong.  The proper timeout depends on the
 824     # target system in use, and how we communicate with it, so there
 825     # is no single value appropriate for all targets.  The timeout
 826     # should be established by the Dejagnu config file(s) for the
 827     # board, and respected by the test suite.
 828     #
 829     # For example, if I'm running GDB over an SSH tunnel talking to a
 830     # portmaster in California talking to an ancient 68k board running
 831     # a crummy ROM monitor (a situation I can only wish were
 832     # hypothetical), then I need a large timeout.  But that's not the
 833     # kind of knowledge that belongs in this file.
 834
 835     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 836             "next over recursive call"
 837
 838     # OK, we should be back in the same stack frame we started from.
 839     # Do a backtrace just to confirm.
 840
 841     set result [gdb_test "backtrace" \
 842             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 843             "backtrace from factorial(5.1)"]
 844     if { $result != 0 } { gdb_suppress_tests }
 845
 846     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 847   gdb_continue_to_end "recursive next test"
 848    gdb_stop_suppressing_tests;
 849 }
 850
 851 test_next_with_recursion
 852
 853
 854 #********
 855
 856 # build a new file with optimization enabled so that we can try breakpoints
 857 # on targets with optimized prologues
 858
 859 set binfileo2 ${objdir}/${subdir}/${testfile}o2
 860
 861 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}O0.o" object {debug nowarnings optimize=-O2}] != "" } {
 862      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 863 }
 864
 865 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}O1.o" object {debug nowarnings optimize=-O2}] != "" } {
 866      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 867 }
 868
 869 if  { [gdb_compile "${binfile}O0.o ${binfile}O1.o" "${binfileo2}" executable {debug nowarnings}] != "" } {
 870      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 871 }
 872
 873 if [get_compiler_info ${binfileo2}] {
 874     return -1
 875 }
 876
 877 gdb_exit
 878 gdb_start
 879 gdb_reinitialize_dir $srcdir/$subdir
 880 gdb_load ${binfileo2}
 881
 882 if [target_info exists gdb_stub] {
 883     gdb_step_for_stub;
 884 }
 885
 886 #
 887 # test break at function
 888 #
 889 gdb_test "break main" \
 890     "Breakpoint.*at.* file .*, line.*" \
 891     "breakpoint function, optimized file"
 892
 893 #
 894 # test break at function
 895 #
 896 gdb_test "break marker4" \
 897     "Breakpoint.*at.* file .*$srcfile1, line.*" \
 898     "breakpoint small function, optimized file"
 899
 900 #
 901 # run until the breakpoint at main is hit. For non-stubs-using targets.
 902 #
 903 if ![target_info exists use_gdb_stub] {
 904   if [istarget "*-*-vxworks*"] then {
 905     send_gdb "run vxmain \"2\"\n"
 906     set timeout 120
 907     verbose "Timeout is now $timeout seconds" 2
 908   } else {
 909         send_gdb "run\n"
 910   }
 911   gdb_expect {
 912     -re "The program .* has been started already.*y or n. $" {
 913         send_gdb "y\n"
 914         exp_continue
 915     }
 916     -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $"\
 917                             { pass "run until function breakpoint, optimized file" }
 918     -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $"\
 919                             { pass "run until function breakpoint, optimized file (code motion)" }
 920     -re ".*$gdb_prompt $"       { fail "run until function breakpoint, optimized file" }
 921     timeout                 { fail "run until function breakpoint, optimized file (timeout)" }
 922   }
 923 } else {
 924     if ![target_info exists gdb_stub] {
 925         gdb_test continue ".*Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.*\{.*" "stub continue, optimized file"
 926     }
 927 }
 928
 929 #
 930 # run until the breakpoint at a small function
 931 #
 932
 933 #
 934 # Add a second pass pattern.  The behavior differs here between stabs
 935 # and dwarf for one-line functions.  Stabs preserves two line symbols
 936 # (one before the prologue and one after) with the same line number,
 937 # but dwarf regards these as duplicates and discards one of them.
 938 # Therefore the address after the prologue (where the breakpoint is)
 939 # has no exactly matching line symbol, and GDB reports the breakpoint
 940 # as if it were in the middle of a line rather than at the beginning.
 941
 942 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
 943 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
 944 send_gdb "continue\n"
 945 gdb_expect {
 946     -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 947         pass "run until breakpoint set at small function, optimized file"
 948     }
 949     -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*" {
 950         pass "run until breakpoint set at small function, optimized file"
 951     }
 952     -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile1:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*" {
 953         # marker4() is defined at line 46 when compiled with -DPROTOTYPES
 954         pass "run until breakpoint set at small function, optimized file (line bp_location14)"
 955     }
 956     -re ".*$gdb_prompt " {
 957         fail "run until breakpoint set at small function, optimized file"
 958     }
 959     timeout {
 960         fail "run until breakpoint set at small function, optimized file (timeout)"
 961     }
 962 }
 963
 964
 965 # Reset the default arguments for VxWorks
 966 if [istarget "*-*-vxworks*"] {
 967     set timeout 10
 968     verbose "Timeout is now $timeout seconds" 2
 969     send_gdb "set args main\n"
 970     gdb_expect -re ".*$gdb_prompt $" {}
 971 }