gdb/testsuite/gdb.base/sepdebug.exp

   1 #   Copyright 1988, 1990-1992, 1994-2000, 2002-2004, 2007-2012 Free
   2 #   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 # Based on break.exp, written by Rob Savoye. (rob@cygnus.com)
  18 # Modified to test gdb's handling of separate debug info files.
  19 # Modified to test gdb's handling of a debug-id retrieval.
  20
  21 # This file has two parts. The first is testing that gdb behaves
  22 # normally after reading in an executable and its corresponding
  23 # separate debug file. The second moves the .debug file to a different
  24 # location and tests the "set debug-file-directory" command.
  25 # The third is for testing build-id retrievel by finding the separate
  26 # ".debug-id/ab/cdef.debug" file.
  27
  28
  29 #
  30 # test running programs
  31 #
  32
  33 set testfile "sepdebug"
  34 set srcfile ${testfile}.c
  35 set binfile ${objdir}/${subdir}/${testfile}${EXEEXT}
  36
  37 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  38     untested sepdebug.exp
  39     return -1
  40 }
  41
  42 # Note: the procedure gdb_gnu_strip_debug will produce an executable called
  43 # ${binfile}, which is just like the executable ($binfile) but without
  44 # the debuginfo. Instead $binfile has a .gnudebuglink section which contains
  45 # the name of a debuginfo only file. This file will be stored in the
  46 # gdb.base/ subdirectory.
  47
  48 if [gdb_gnu_strip_debug $binfile] {
  49     # check that you have a recent version of strip and objcopy installed
  50     unsupported "cannot produce separate debug info files"
  51     return -1
  52 }
  53
  54 gdb_exit
  55 gdb_start
  56 gdb_reinitialize_dir $srcdir/$subdir
  57 gdb_load ${binfile}
  58 if { $gdb_file_cmd_debug_info != "debug" } then {
  59     fail "No debug information found."
  60 }
  61
  62 #
  63 # test simple breakpoint setting commands
  64 #
  65
  66 #
  67 # test break at function
  68 #
  69 gdb_test "break main" \
  70     "Breakpoint.*at.* file .*$srcfile, line.*" \
  71     "breakpoint function"
  72
  73 #
  74 # test break at quoted function
  75 #
  76 gdb_test "break \"marker2\"" \
  77     "Breakpoint.*at.* file .*$srcfile, line.*" \
  78     "breakpoint quoted function"
  79
  80 #
  81 # test break at function in file
  82 #
  83 gdb_test "break $srcfile:factorial" \
  84     "Breakpoint.*at.* file .*$srcfile, line.*" \
  85     "breakpoint function in file"
  86
  87 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  88
  89 #
  90 # test break at line number
  91 #
  92 # Note that the default source file is the last one whose source text
  93 # was printed.  For native debugging, before we've executed the
  94 # program, this is the file containing main, but for remote debugging,
  95 # it's wherever the processor was stopped when we connected to the
  96 # board.  So, to be sure, we do a list command.
  97 #
  98 gdb_test "list main" \
  99     ".*main \\(argc, argv, envp\\).*" \
 100     "use `list' to establish default source file"
 101 gdb_test "break $bp_location1" \
 102     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
 103     "breakpoint line number"
 104
 105 #
 106 # test duplicate breakpoint
 107 #
 108 gdb_test "break $bp_location1" \
 109     "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
 110     "breakpoint duplicate"
 111
 112 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
 113
 114 #
 115 # test break at line number in file
 116 #
 117 gdb_test "break $srcfile:$bp_location2" \
 118     "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
 119     "breakpoint line number in file"
 120
 121 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 122 set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]
 123
 124 #
 125 # Test putting a break at the start of a multi-line if conditional.
 126 # Verify the breakpoint was put at the start of the conditional.
 127 #
 128 gdb_test "break multi_line_if_conditional" \
 129     "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
 130     "breakpoint at start of multi line if conditional"
 131
 132 gdb_test "break multi_line_while_conditional" \
 133     "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
 134     "breakpoint at start of multi line while conditional"
 135
 136 set bp_location5 [gdb_get_line_number "set breakpoint 5 here"]
 137 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 138
 139 set main_line $bp_location6
 140
 141 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
 142 set bp_location8 [gdb_get_line_number "set breakpoint 8 here"]
 143 set bp_location9 [gdb_get_line_number "set breakpoint 9 here"]
 144
 145 gdb_test "info break" \
 146     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 147 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 148 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile:($bp_location8|$bp_location9).*
 149 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial at .*$srcfile:$bp_location7.*
 150 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 151 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 152 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
 153 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
 154 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
 155     "breakpoint info"
 156
 157 # FIXME: The rest of this test doesn't work with anything that can't
 158 # handle arguments.
 159 # Huh? There doesn't *appear* to be anything that passes arguments
 160 # below.
 161 if [istarget "mips-idt-*"] then {
 162     return
 163 }
 164
 165 #
 166 # run until the breakpoint at main is hit. For non-stubs-using targets.
 167 #
 168 gdb_run_cmd
 169 gdb_expect {
 170     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 171         pass "run until function breakpoint"
 172     }
 173     -re "$gdb_prompt $" {
 174         fail "run until function breakpoint"
 175     }
 176     timeout {
 177         fail "run until function breakpoint (timeout)"
 178     }
 179 }
 180
 181 #
 182 # run until the breakpoint at a line number
 183 #
 184 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 185                         "run until breakpoint set at a line number"
 186
 187 #
 188 # Run until the breakpoint set in a function in a file
 189 #
 190 for {set i 6} {$i >= 1} {incr i -1} {
 191         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
 192                         "run until file:function($i) breakpoint"
 193 }
 194
 195 #
 196 # Run until the breakpoint set at a quoted function
 197 #
 198 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile:($bp_location8|$bp_location9).*" \
 199                 "run until quoted breakpoint"
 200 #
 201 # run until the file:function breakpoint at a line number in a file
 202 #
 203 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
 204                 "run until file:linenum breakpoint"
 205
 206 # Test break at offset +1
 207 set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
 208
 209 gdb_test "break +1" \
 210     "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
 211     "breakpoint offset +1"
 212
 213 # Check to see if breakpoint is hit when stepped onto
 214
 215 gdb_test "step" \
 216     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
 217     "step onto breakpoint"
 218
 219 #
 220 # delete all breakpoints so we can start over, course this can be a test too
 221 #
 222 delete_breakpoints
 223
 224 #
 225 # test temporary breakpoint at function
 226 #
 227
 228 gdb_test "tbreak main" "Temporary breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 229
 230 #
 231 # test break at function in file
 232 #
 233
 234 gdb_test "tbreak $srcfile:factorial" "Temporary breakpoint.*at.* file .*$srcfile, line.*" \
 235         "Temporary breakpoint function in file"
 236
 237 #
 238 # test break at line number
 239 #
 240
 241 gdb_test "tbreak $bp_location1" \
 242     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location1.*" \
 243     "Temporary breakpoint line number #1"
 244
 245 gdb_test "tbreak $bp_location6" \
 246     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location6.*" \
 247     "Temporary breakpoint line number #2"
 248
 249 #
 250 # test break at line number in file
 251 #
 252
 253 gdb_test "tbreak $srcfile:$bp_location2" \
 254     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location2.*" \
 255     "Temporary breakpoint line number in file #1"
 256
 257 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
 258 gdb_test  "tbreak $srcfile:$bp_location11" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
 259
 260 #
 261 # check to see what breakpoints are set (temporary this time)
 262 #
 263 gdb_test "info break" "Num     Type.*Disp Enb Address.*What.*\[\r\n\]
 264 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 265 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial at .*$srcfile:$bp_location7.*\[\r\n\]
 266 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
 267 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
 268 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
 269 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
 270     "Temporary breakpoint info"
 271
 272
 273 #***********
 274
 275 # Verify that catchpoints for fork, vfork and exec don't trigger
 276 # inappropriately.  (There are no calls to those system functions
 277 # in this test program.)
 278 #
 279 if ![runto_main] then { fail "sepdebug tests suppressed" }
 280
 281 gdb_test "catch" "Catch requires an event name.*" \
 282     "catch requires an event name"
 283
 284 set name "set catch fork, never expected to trigger"
 285 gdb_test_multiple "catch fork" $name {
 286     -re "Catchpoint \[0-9\]* .fork.*$gdb_prompt $" {
 287         pass $name
 288     }
 289     -re "Catch of fork not yet implemented.*$gdb_prompt $" {
 290         pass $name
 291     }
 292 }
 293
 294 # If we are on HP-UX 10.20, we expect an error message to be
 295 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 296 # because on HP-UX 10.20, we cannot catch vfork events.
 297
 298 set name "set catch vfork, never expected to trigger"
 299 gdb_test_multiple "catch vfork" $name {
 300     -re "Catch of vfork events not supported on HP-UX 10.20.*" {
 301         pass $name
 302     }
 303     -re "Catchpoint \[0-9\]* .vfork.*$gdb_prompt $" {
 304         pass $name
 305     }
 306     -re "Catch of vfork not yet implemented.*$gdb_prompt $" {
 307         pass $name
 308     }
 309 }
 310
 311 set name "set catch exec, never expected to trigger"
 312 gdb_test_multiple "catch exec" $name {
 313     -re "Catchpoint \[0-9\]* .exec.*$gdb_prompt $" {
 314         pass $name
 315     }
 316     -re "Catch of exec not yet implemented.*$gdb_prompt $" {
 317         pass $name
 318     }
 319 }
 320
 321 # Verify that GDB responds gracefully when asked to set a breakpoint
 322 # on a nonexistent source line.
 323 #
 324
 325 gdb_test_no_output "set breakpoint pending off"
 326 gdb_test "break 999" "No line 999 in the current file." \
 327     "break on non-existent source line"
 328
 329 # Run to the desired default location. If not positioned here, the
 330 # tests below don't work.
 331 #
 332 gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" "until bp_location1"
 333
 334
 335 # Verify that GDB allows one to just say "break", which is treated
 336 # as the "default" breakpoint.  Note that GDB gets cute when printing
 337 # the informational message about other breakpoints at the same
 338 # location.  We'll hit that bird with this stone too.
 339 #
 340
 341 gdb_test "break" "Breakpoint \[0-9\]*.*" \
 342     "break on default location, 1st time"
 343
 344 gdb_test "break" \
 345     "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 346     "break on default location, 2nd time"
 347
 348 gdb_test "break" \
 349     "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 350     "break on default location, 3rd time"
 351
 352 gdb_test "break" \
 353     "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 354     "break on default location, 4th time"
 355
 356 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 357 # "silent" about its triggering.
 358 #
 359 if ![runto_main] then { fail "sepdebug tests suppressed" }
 360
 361 gdb_test_multiple "break $bp_location1" \
 362     "set to-be-silent break bp_location1" {
 363         -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $" {
 364             pass "set to-be-silent break bp_location1"
 365         }
 366 }
 367
 368 gdb_test "commands $expect_out(1,string)\nsilent\nend" ">end" "set silent break bp_location1"
 369
 370 gdb_test "info break $expect_out(1,string)" \
 371     "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*" \
 372     "info silent break bp_location1"
 373
 374 gdb_test "continue" "Continuing.*" "hit silent break bp_location1"
 375
 376 gdb_test "bt" "#0  main .* at .*:$bp_location1.*" \
 377     "stopped for silent break bp_location1"
 378
 379 # Verify that GDB can at least parse a breakpoint with the
 380 # "thread" keyword.  (We won't attempt to test here that a
 381 # thread-specific breakpoint really triggers appropriately.
 382 # The gdb.threads subdirectory contains tests for that.)
 383 #
 384 set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
 385
 386 gdb_test "break $bp_location12 thread 999" "Unknown thread 999.*" \
 387     "thread-specific breakpoint on non-existent thread disallowed"
 388
 389 gdb_test "break $bp_location12 thread foo" \
 390     "Junk after thread keyword.*" \
 391     "thread-specific breakpoint on bogus thread ID disallowed"
 392
 393 # Verify that GDB responds gracefully to a breakpoint command with
 394 # trailing garbage.
 395 #
 396
 397 gdb_test "break $bp_location12 foo" \
 398     "Junk at end of arguments.*" \
 399     "breakpoint with trailing garbage disallowed"
 400
 401 # Verify that GDB responds gracefully to a "clear" command that has
 402 # no matching breakpoint.  (First, get us off the current source line,
 403 # which we know has a breakpoint.)
 404 #
 405
 406 gdb_test "next" "marker1.*" "step over breakpoint"
 407
 408 gdb_test "clear 81" "No breakpoint at 81.*" \
 409     "clear line has no breakpoint disallowed"
 410
 411 gdb_test "clear" "No breakpoint at this line.*" \
 412     "clear current line has no breakpoint disallowed"
 413
 414 # Verify that we can set and clear multiple breakpoints.
 415 #
 416 # We don't test that it deletes the correct breakpoints.  We do at
 417 # least test that it deletes more than one breakpoint.
 418 #
 419 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 420 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 421 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 422
 423 # Verify that a breakpoint can be set via a convenience variable.
 424 #
 425
 426 gdb_test_no_output "set \$foo=$bp_location11" \
 427     "set convenience variable \$foo to bp_location11"
 428
 429 gdb_test "break \$foo" \
 430     "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*" \
 431     "set breakpoint via convenience variable"
 432
 433 # Verify that GDB responds gracefully to an attempt to set a
 434 # breakpoint via a convenience variable whose type is not integer.
 435 #
 436
 437 gdb_test_no_output "set \$foo=81.5" \
 438     "set convenience variable \$foo to 81.5"
 439
 440 gdb_test "break \$foo" \
 441     "Convenience variables used in line specs must have integer values.*" \
 442     "set breakpoint via non-integer convenience variable disallowed"
 443
 444 # Verify that we can set and trigger a breakpoint in a user-called function.
 445 #
 446
 447 gdb_test "break marker2" \
 448     "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*" \
 449     "set breakpoint on to-be-called function"
 450
 451 gdb_test "print marker2(99)" \
 452     "The program being debugged stopped while in a function called from GDB.\r\nEvaluation of the expression containing the function\r\n.marker2. will be abandoned.\r\nWhen the function is done executing, GDB will silently stop.*" \
 453     "hit breakpoint on called function"
 454
 455 # As long as we're stopped (breakpointed) in a called function,
 456 # verify that we can successfully backtrace & such from here.
 457 #
 458 # In this and the following test, the _sr4export check apparently is needed
 459 # for hppa*-*-hpux.
 460 #
 461
 462 gdb_test_multiple "bt" "backtrace while in called function" {
 463     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $" {
 464         pass "backtrace while in called function"
 465     }
 466     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $" {
 467         pass "backtrace while in called function"
 468     }
 469 }
 470
 471 # Return from the called function.  For remote targets, it's important to do
 472 # this before runto_main, which otherwise may silently stop on the dummy
 473 # breakpoint inserted by GDB at the program's entry point.
 474 #
 475
 476 gdb_test_multiple "finish" "finish from called function" {
 477     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $" {
 478         pass "finish from called function"
 479     }
 480     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $" {
 481         pass "finish from called function"
 482     }
 483     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $" {
 484         pass "finish from called function"
 485     }
 486 }
 487
 488 # Verify that GDB responds gracefully to a "finish" command with
 489 # arguments.
 490 #
 491 if ![runto_main] then { fail "sepdebug tests suppressed" }
 492
 493 gdb_test "finish 123" \
 494     "The \"finish\" command does not take any arguments.*" \
 495     "finish with arguments disallowed"
 496
 497 # Verify that GDB responds gracefully to a request to "finish" from
 498 # the outermost frame.  On a stub that never exits, this will just
 499 # run to the stubs routine, so we don't get this error...  Thus the
 500 # second condition.
 501 #
 502
 503 gdb_test_multiple "finish" "finish from outermost frame disallowed" {
 504     -re "\"finish\" not meaningful in the outermost frame.*$gdb_prompt $" {
 505         pass "finish from outermost frame disallowed"
 506     }
 507     -re "Run till exit from.*$gdb_prompt $" {
 508         pass "finish from outermost frame disallowed"
 509     }
 510 }
 511
 512 # Verify that we can explicitly ask GDB to stop on all shared library
 513 # events, and that it does so.
 514 #
 515 if [istarget "hppa*-*-hpux*"] then {
 516     if ![runto_main] then { fail "sepdebug tests suppressed" }
 517
 518     gdb_test_no_output "set stop-on-solib-events 1" \
 519         "set stop-on-solib-events"
 520
 521     gdb_test "run" \
 522         "Stopped due to shared library event.*" \
 523         "triggered stop-on-solib-events" \
 524         "Start it from the beginning.*y or n. $" \
 525         "y"
 526
 527     gdb_test_no_output "set stop-on-solib-events 0" \
 528       "reset stop-on-solib-events"
 529 }
 530
 531 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 532 # gracefully responds to requests to create them.
 533 #
 534 if [istarget "hppa*-*-hpux*"] then {
 535     if ![runto_main] then { fail "sepdebug tests suppressed" }
 536
 537     gdb_test "hbreak" \
 538         "No hardware breakpoint support in the target.*" \
 539         "hw breaks disallowed"
 540
 541     gdb_test "thbreak" \
 542       "No hardware breakpoint support in the target.*" \
 543       "temporary hw breaks disallowed"
 544 }
 545
 546 #********
 547
 548
 549 #
 550 # Test "next" over recursive function call.
 551 #
 552
 553 proc test_next_with_recursion {} {
 554     global gdb_prompt
 555     global decimal
 556     global binfile
 557
 558     gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 559     delete_breakpoints
 560
 561     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 562
 563     # Run until we call factorial with 6
 564
 565     gdb_run_cmd
 566     gdb_expect {
 567         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 568         -re ".*$gdb_prompt $" {
 569             fail "run to factorial(6)";
 570             gdb_suppress_tests;
 571         }
 572         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 573     }
 574
 575     # Continue until we call factorial recursively with 5.
 576
 577     if [gdb_test "continue" \
 578         "Continuing.*Break.* factorial .value=5. .*" \
 579         "continue to factorial(5)"] then { gdb_suppress_tests }
 580
 581     # Do a backtrace just to confirm how many levels deep we are.
 582
 583     if [gdb_test "backtrace" \
 584         "#0\[ \t\]+ factorial .value=5..*" \
 585         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 586
 587     # Now a "next" should position us at the recursive call, which
 588     # we will be performing with 4.
 589
 590     if [gdb_test "next" \
 591         ".* factorial .value - 1.;.*" \
 592         "next to recursive call"] then { gdb_suppress_tests }
 593
 594     # Disable the breakpoint at the entry to factorial by deleting them all.
 595     # The "next" should run until we return to the next line from this
 596     # recursive call to factorial with 4.
 597     # Buggy versions of gdb will stop instead at the innermost frame on
 598     # the line where we are trying to "next" to.
 599
 600     delete_breakpoints
 601
 602     if [istarget "mips*tx39-*"] {
 603         set timeout 60
 604     }
 605     # We used to set timeout here for all other targets as well.  This
 606     # is almost certainly wrong.  The proper timeout depends on the
 607     # target system in use, and how we communicate with it, so there
 608     # is no single value appropriate for all targets.  The timeout
 609     # should be established by the Dejagnu config file(s) for the
 610     # board, and respected by the test suite.
 611     #
 612     # For example, if I'm running GDB over an SSH tunnel talking to a
 613     # portmaster in California talking to an ancient 68k board running
 614     # a crummy ROM monitor (a situation I can only wish were
 615     # hypothetical), then I need a large timeout.  But that's not the
 616     # kind of knowledge that belongs in this file.
 617
 618     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 619             "next over recursive call"
 620
 621     # OK, we should be back in the same stack frame we started from.
 622     # Do a backtrace just to confirm.
 623
 624     set result [gdb_test "backtrace" \
 625             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 626             "backtrace from factorial(5.1)"]
 627     if { $result != 0 } { gdb_suppress_tests }
 628
 629     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 630   gdb_continue_to_end "recursive next test"
 631    gdb_stop_suppressing_tests;
 632 }
 633
 634 test_next_with_recursion
 635
 636
 637 #********
 638
 639 proc test_different_dir {type test_different_dir xfail} {
 640     global srcdir subdir objdir binfile srcfile timeout gdb_prompt
 641     global pf_prefix
 642     global bp_location6 decimal hex
 643
 644     set old_pf_prefix $pf_prefix
 645     append pf_prefix " $type:"
 646
 647     gdb_exit
 648     gdb_start
 649     gdb_reinitialize_dir $srcdir/$subdir
 650     gdb_test_no_output "set debug-file-directory ${test_different_dir}" \
 651         "set separate debug location"
 652     gdb_load ${binfile}
 653
 654     #
 655     # test break at function
 656     #
 657     if {$xfail} {
 658         setup_xfail "*-*-*"
 659     }
 660     gdb_test "break main" \
 661         "Breakpoint.*at.* file .*$srcfile, line.*" \
 662         "breakpoint function, optimized file"
 663
 664     #
 665     # test break at function
 666     #
 667     if {$xfail} {
 668         setup_xfail "*-*-*"
 669     }
 670     gdb_test "break marker4" \
 671         "Breakpoint.*at.* file .*$srcfile, line.*" \
 672         "breakpoint small function, optimized file"
 673
 674     #
 675     # run until the breakpoint at main is hit. For non-stubs-using targets.
 676     #
 677     gdb_run_cmd
 678     if {$xfail} {
 679         setup_xfail "*-*-*"
 680     }
 681     gdb_expect {
 682         -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 683             pass "run until function breakpoint, optimized file"
 684         }
 685         -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
 686             pass "run until function breakpoint, optimized file (code motion)"
 687         }
 688         -re "$gdb_prompt $" {
 689             fail "run until function breakpoint, optimized file"
 690         }
 691         timeout {
 692             fail "run until function breakpoint, optimized file (timeout)"
 693         }
 694     }
 695
 696     #
 697     # run until the breakpoint at a small function
 698     #
 699
 700     #
 701     # Add a second pass pattern.  The behavior differs here between stabs
 702     # and dwarf for one-line functions.  Stabs preserves two line symbols
 703     # (one before the prologue and one after) with the same line number,
 704     # but dwarf regards these as duplicates and discards one of them.
 705     # Therefore the address after the prologue (where the breakpoint is)
 706     # has no exactly matching line symbol, and GDB reports the breakpoint
 707     # as if it were in the middle of a line rather than at the beginning.
 708
 709     set bp_location13 [gdb_get_line_number "set breakpoint 13 here"]
 710     set bp_location14 [gdb_get_line_number "set breakpoint 14 here"]
 711     if {$xfail} {
 712         setup_xfail "*-*-*"
 713     }
 714
 715     gdb_test_multiple "continue" "run until breakpoint set at small function, optimized file" {
 716         -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*$gdb_prompt $" {
 717             pass "run until breakpoint set at small function, optimized file"
 718         }
 719         -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*$gdb_prompt $" {
 720             pass "run until breakpoint set at small function, optimized file"
 721         }
 722         -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*$gdb_prompt $" {
 723             # marker4() is defined at line 46 when compiled with -DPROTOTYPES
 724             pass "run until breakpoint set at small function, optimized file (line bp_location14)"
 725         }
 726     }
 727
 728
 729     # Reset the default arguments for VxWorks
 730     if [istarget "*-*-vxworks*"] {
 731         set timeout 10
 732         verbose "Timeout is now $timeout seconds" 2
 733         gdb_test_no_output "set args main"
 734     }
 735
 736     set pf_prefix $old_pf_prefix
 737 # proc test_different_dir
 738 }
 739
 740
 741 # now move the .debug file to a different location so that we can test
 742 # the "set debug-file-directory" command.
 743
 744 set different_dir "${objdir}/${subdir}/${testfile}.dir"
 745 set debugfile "${different_dir}/${objdir}/${subdir}/${testfile}.debug"
 746 remote_exec build "rm -rf $different_dir"
 747 remote_exec build "mkdir -p [file dirname $debugfile]"
 748 remote_exec build "mv -f ${objdir}/${subdir}/${testfile}.debug $debugfile"
 749
 750 test_different_dir debuglink $different_dir 0
 751
 752
 753 # Test CRC mismatch is reported.
 754
 755 if {[build_executable sepdebug.exp sepdebug2 sepdebug2.c debug] != -1
 756     && ![gdb_gnu_strip_debug ${objdir}/${subdir}/sepdebug2]} {
 757
 758     remote_exec build "cp ${debugfile} ${objdir}/${subdir}/sepdebug2.debug"
 759
 760     gdb_exit
 761     gdb_start
 762     gdb_reinitialize_dir $srcdir/$subdir
 763
 764     set escapedobjdirsubdir [string_to_regexp ${objdir}/${subdir}]
 765
 766     gdb_test "file ${objdir}/${subdir}/sepdebug2" "warning: the debug information found in \"${escapedobjdirsubdir}/sepdebug2\\.debug\" does not match \"${escapedobjdirsubdir}/sepdebug2\" \\(CRC mismatch\\)\\..*\\(no debugging symbols found\\).*" "CRC mismatch is reported"
 767 }
 768
 769
 770 # NT_GNU_BUILD_ID / .note.gnu.build-id test:
 771
 772 set build_id_debug_filename [build_id_debug_filename_get $binfile]
 773 if ![string compare $build_id_debug_filename ""] then {
 774     unsupported "build-id is not supported by the compiler"
 775
 776     # Spare debug files may confuse testsuite runs in the future.
 777     remote_exec build "rm -f $debugfile"
 778 } else {
 779     set build_id_debugself_filename [build_id_debug_filename_get $debugfile]
 780     set test "build-id support by binutils"
 781     set xfail 0
 782     if ![string compare $build_id_debugself_filename ""] then {
 783         unsupported $test
 784         set xfail 1
 785     } elseif {[string compare $build_id_debugself_filename $build_id_debug_filename] != 0} then {
 786         fail $test
 787     } else {
 788         pass $test
 789     }
 790
 791     file mkdir [file dirname ${objdir}/${subdir}/${build_id_debug_filename}]
 792     remote_exec build "mv $debugfile ${objdir}/${subdir}/${build_id_debug_filename}"
 793
 794     test_different_dir build-id "${objdir}/${subdir}" $xfail
 795
 796     # Test also multiple directories can be specified.  Without the build-id
 797     # reference GDB would find the separate debug info just at the same
 798     # location as the executable file.
 799
 800     test_different_dir multiple-dirs "/doesnotexist:${objdir}/${subdir}" $xfail
 801
 802     # Spare debug files may confuse testsuite runs in the future.
 803     remote_exec build "rm -f ${objdir}/${subdir}/${build_id_debug_filename}"
 804 }