gdb/testsuite/gdb.base/sepdebug.exp

   1 #   Copyright 1988-2013 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # Based on break.exp, written by Rob Savoye. (rob@cygnus.com)
  17 # Modified to test gdb's handling of separate debug info files.
  18 # Modified to test gdb's handling of a debug-id retrieval.
  19
  20 # This file has two parts. The first is testing that gdb behaves
  21 # normally after reading in an executable and its corresponding
  22 # separate debug file. The second moves the .debug file to a different
  23 # location and tests the "set debug-file-directory" command.
  24 # The third is for testing build-id retrievel by finding the separate
  25 # ".debug-id/ab/cdef.debug" file.
  26
  27
  28 #
  29 # test running programs
  30 #
  31
  32 set testfile "sepdebug"
  33 set srcfile ${testfile}.c
  34 set binfile ${objdir}/${subdir}/${testfile}${EXEEXT}
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  37     untested sepdebug.exp
  38     return -1
  39 }
  40
  41 # Note: the procedure gdb_gnu_strip_debug will produce an executable called
  42 # ${binfile}, which is just like the executable ($binfile) but without
  43 # the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
  44 # the name of a debuginfo only file. This file will be stored in the
  45 # gdb.base/ subdirectory.
  46
  47 if [gdb_gnu_strip_debug $binfile] {
  48     # check that you have a recent version of strip and objcopy installed
  49     unsupported "cannot produce separate debug info files"
  50     return -1
  51 }
  52
  53 #
  54 # PR gdb/9538.  Verify that symlinked executable still finds the separate
  55 # debuginfo.
  56 #
  57 set old_subdir ${subdir}
  58 set subdir ${subdir}/pr9538
  59
  60 # Cleanup any stale state.
  61 remote_exec build "rm -rf ${subdir}"
  62
  63 remote_exec build "mkdir ${subdir}"
  64 remote_exec build "ln -s ${binfile} ${subdir}"
  65 clean_restart ${testfile}${EXEEXT}
  66 if { $gdb_file_cmd_debug_info != "debug" } then {
  67     fail "No debug information found."
  68 }
  69
  70 # Restore subdir
  71 set subdir ${old_subdir}
  72
  73 clean_restart ${testfile}${EXEEXT}
  74 if { $gdb_file_cmd_debug_info != "debug" } then {
  75     fail "No debug information found."
  76 }
  77
  78 #
  79 # test simple breakpoint setting commands
  80 #
  81
  82 #
  83 # test break at function
  84 #
  85 gdb_test "break main" \
  86     "Breakpoint.*at.* file .*$srcfile, line.*" \
  87     "breakpoint function"
  88
  89 #
  90 # test break at quoted function
  91 #
  92 gdb_test "break \"marker2\"" \
  93     "Breakpoint.*at.* file .*$srcfile, line.*" \
  94     "breakpoint quoted function"
  95
  96 #
  97 # test break at function in file
  98 #
  99 gdb_test "break $srcfile:factorial" \
 100     "Breakpoint.*at.* file .*$srcfile, line.*" \
 101     "breakpoint function in file"
 102
 103 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
 104
 105 #
 106 # test break at line number
 107 #
 108 # Note that the default source file is the last one whose source text
 109 # was printed.  For native debugging, before we've executed the
 110 # program, this is the file containing main, but for remote debugging,
 111 # it's wherever the processor was stopped when we connected to the
 112 # board.  So, to be sure, we do a list command.
 113 #
 114 gdb_test "list main" \
 115     ".*main \\(argc, argv, envp\\).*" \
 116     "use `list' to establish default source file"
 117 gdb_test "break $bp_location1" \
 118     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
 119     "breakpoint line number"
 120
 121 #
 122 # test duplicate breakpoint
 123 #
 124 gdb_test "break $bp_location1" \
 125     "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
 126     "breakpoint duplicate"
 127
 128 set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]
 129
 130 #
 131 # test break at line number in file
 132 #
 133 gdb_test "break $srcfile:$bp_location2" \
 134     "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
 135     "breakpoint line number in file"
 136
 137 set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
 138 set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]
 139
 140 #
 141 # Test putting a break at the start of a multi-line if conditional.
 142 # Verify the breakpoint was put at the start of the conditional.
 143 #
 144 gdb_test "break multi_line_if_conditional" \
 145     "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
 146     "breakpoint at start of multi line if conditional"
 147
 148 gdb_test "break multi_line_while_conditional" \
 149     "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
 150     "breakpoint at start of multi line while conditional"
 151
 152 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 153
 154 set main_line $bp_location6
 155
 156 set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
 157 set bp_location8 [gdb_get_line_number "set breakpoint 8 here"]
 158 set bp_location9 [gdb_get_line_number "set breakpoint 9 here"]
 159
 160 gdb_test "info break" \
 161     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 162 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
 163 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile:($bp_location8|$bp_location9).*
 164 \[0-9\]+\[\t \]+breakpoint     keep y.* in factorial at .*$srcfile:$bp_location7.*
 165 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 166 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 167 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
 168 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
 169 \[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
 170     "breakpoint info"
 171
 172 # FIXME: The rest of this test doesn't work with anything that can't
 173 # handle arguments.
 174 # Huh? There doesn't *appear* to be anything that passes arguments
 175 # below.
 176
 177 #
 178 # run until the breakpoint at main is hit. For non-stubs-using targets.
 179 #
 180 gdb_run_cmd
 181 gdb_expect {
 182     -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 183         pass "run until function breakpoint"
 184     }
 185     -re "$gdb_prompt $" {
 186         fail "run until function breakpoint"
 187     }
 188     timeout {
 189         fail "run until function breakpoint (timeout)"
 190     }
 191 }
 192
 193 #
 194 # run until the breakpoint at a line number
 195 #
 196 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 197                         "run until breakpoint set at a line number"
 198
 199 #
 200 # Run until the breakpoint set in a function in a file
 201 #
 202 for {set i 6} {$i >= 1} {incr i -1} {
 203         gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
 204                         "run until file:function($i) breakpoint"
 205 }
 206
 207 #
 208 # Run until the breakpoint set at a quoted function
 209 #
 210 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile:($bp_location8|$bp_location9).*" \
 211                 "run until quoted breakpoint"
 212 #
 213 # run until the file:function breakpoint at a line number in a file
 214 #
 215 gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
 216                 "run until file:linenum breakpoint"
 217
 218 # Test break at offset +1
 219 set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]
 220
 221 gdb_test "break +1" \
 222     "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
 223     "breakpoint offset +1"
 224
 225 # Check to see if breakpoint is hit when stepped onto
 226
 227 gdb_test "step" \
 228     ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
 229     "step onto breakpoint"
 230
 231 #
 232 # delete all breakpoints so we can start over, course this can be a test too
 233 #
 234 delete_breakpoints
 235
 236 #
 237 # test temporary breakpoint at function
 238 #
 239
 240 gdb_test "tbreak main" "Temporary breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
 241
 242 #
 243 # test break at function in file
 244 #
 245
 246 gdb_test "tbreak $srcfile:factorial" "Temporary breakpoint.*at.* file .*$srcfile, line.*" \
 247         "Temporary breakpoint function in file"
 248
 249 #
 250 # test break at line number
 251 #
 252
 253 gdb_test "tbreak $bp_location1" \
 254     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location1.*" \
 255     "Temporary breakpoint line number #1"
 256
 257 gdb_test "tbreak $bp_location6" \
 258     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location6.*" \
 259     "Temporary breakpoint line number #2"
 260
 261 #
 262 # test break at line number in file
 263 #
 264
 265 gdb_test "tbreak $srcfile:$bp_location2" \
 266     "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location2.*" \
 267     "Temporary breakpoint line number in file #1"
 268
 269 set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
 270 gdb_test  "tbreak $srcfile:$bp_location11" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"
 271
 272 #
 273 # check to see what breakpoints are set (temporary this time)
 274 #
 275 gdb_test "info break" "Num     Type.*Disp Enb Address.*What.*\[\r\n\]
 276 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
 277 \[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial at .*$srcfile:$bp_location7.*\[\r\n\]
 278 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
 279 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
 280 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
 281 \[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
 282     "Temporary breakpoint info"
 283
 284
 285 #***********
 286
 287 # Verify that catchpoints for fork, vfork and exec don't trigger
 288 # inappropriately.  (There are no calls to those system functions
 289 # in this test program.)
 290 #
 291 if ![runto_main] then { fail "sepdebug tests suppressed" }
 292
 293 gdb_test "catch" "Catch requires an event name.*" \
 294     "catch requires an event name"
 295
 296 set name "set catch fork, never expected to trigger"
 297 gdb_test_multiple "catch fork" $name {
 298     -re "Catchpoint \[0-9\]* .fork.*$gdb_prompt $" {
 299         pass $name
 300     }
 301     -re "Catch of fork not yet implemented.*$gdb_prompt $" {
 302         pass $name
 303     }
 304 }
 305
 306 # If we are on HP-UX 10.20, we expect an error message to be
 307 # printed if we type "catch vfork" at the gdb gdb_prompt.  This is
 308 # because on HP-UX 10.20, we cannot catch vfork events.
 309
 310 set name "set catch vfork, never expected to trigger"
 311 gdb_test_multiple "catch vfork" $name {
 312     -re "Catch of vfork events not supported on HP-UX 10.20.*" {
 313         pass $name
 314     }
 315     -re "Catchpoint \[0-9\]* .vfork.*$gdb_prompt $" {
 316         pass $name
 317     }
 318     -re "Catch of vfork not yet implemented.*$gdb_prompt $" {
 319         pass $name
 320     }
 321 }
 322
 323 set name "set catch exec, never expected to trigger"
 324 gdb_test_multiple "catch exec" $name {
 325     -re "Catchpoint \[0-9\]* .exec.*$gdb_prompt $" {
 326         pass $name
 327     }
 328     -re "Catch of exec not yet implemented.*$gdb_prompt $" {
 329         pass $name
 330     }
 331 }
 332
 333 # Verify that GDB responds gracefully when asked to set a breakpoint
 334 # on a nonexistent source line.
 335 #
 336
 337 gdb_test_no_output "set breakpoint pending off"
 338 gdb_test "break 999" "No line 999 in the current file." \
 339     "break on non-existent source line"
 340
 341 # Run to the desired default location. If not positioned here, the
 342 # tests below don't work.
 343 #
 344 gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" "until bp_location1"
 345
 346
 347 # Verify that GDB allows one to just say "break", which is treated
 348 # as the "default" breakpoint.  Note that GDB gets cute when printing
 349 # the informational message about other breakpoints at the same
 350 # location.  We'll hit that bird with this stone too.
 351 #
 352
 353 gdb_test "break" "Breakpoint \[0-9\]*.*" \
 354     "break on default location, 1st time"
 355
 356 gdb_test "break" \
 357     "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 358     "break on default location, 2nd time"
 359
 360 gdb_test "break" \
 361     "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 362     "break on default location, 3rd time"
 363
 364 gdb_test "break" \
 365     "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
 366     "break on default location, 4th time"
 367
 368 # Verify that a "silent" breakpoint can be set, and that GDB is indeed
 369 # "silent" about its triggering.
 370 #
 371 if ![runto_main] then { fail "sepdebug tests suppressed" }
 372
 373 gdb_test_multiple "break $bp_location1" \
 374     "set to-be-silent break bp_location1" {
 375         -re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $" {
 376             pass "set to-be-silent break bp_location1"
 377         }
 378 }
 379
 380 gdb_test "commands $expect_out(1,string)\nsilent\nend" ">end" "set silent break bp_location1"
 381
 382 gdb_test "info break $expect_out(1,string)" \
 383     "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*" \
 384     "info silent break bp_location1"
 385
 386 gdb_test "continue" "Continuing.*" "hit silent break bp_location1"
 387
 388 gdb_test "bt" "#0  main .* at .*:$bp_location1.*" \
 389     "stopped for silent break bp_location1"
 390
 391 # Verify that GDB can at least parse a breakpoint with the
 392 # "thread" keyword.  (We won't attempt to test here that a
 393 # thread-specific breakpoint really triggers appropriately.
 394 # The gdb.threads subdirectory contains tests for that.)
 395 #
 396 set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]
 397
 398 gdb_test "break $bp_location12 thread 999" "Unknown thread 999.*" \
 399     "thread-specific breakpoint on non-existent thread disallowed"
 400
 401 gdb_test "break $bp_location12 thread foo" \
 402     "Junk after thread keyword.*" \
 403     "thread-specific breakpoint on bogus thread ID disallowed"
 404
 405 # Verify that GDB responds gracefully to a breakpoint command with
 406 # trailing garbage.
 407 #
 408
 409 gdb_test "break $bp_location12 foo" \
 410     "malformed linespec error: unexpected string, \"foo\".*" \
 411     "breakpoint with trailing garbage disallowed"
 412
 413 # Verify that GDB responds gracefully to a "clear" command that has
 414 # no matching breakpoint.  (First, get us off the current source line,
 415 # which we know has a breakpoint.)
 416 #
 417
 418 gdb_test "next" "marker1.*" "step over breakpoint"
 419
 420 gdb_test "clear 81" "No breakpoint at 81.*" \
 421     "clear line has no breakpoint disallowed"
 422
 423 gdb_test "clear" "No breakpoint at this line.*" \
 424     "clear current line has no breakpoint disallowed"
 425
 426 # Verify that we can set and clear multiple breakpoints.
 427 #
 428 # We don't test that it deletes the correct breakpoints.  We do at
 429 # least test that it deletes more than one breakpoint.
 430 #
 431 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
 432 gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
 433 gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}
 434
 435 # Verify that a breakpoint can be set via a convenience variable.
 436 #
 437
 438 gdb_test_no_output "set \$foo=$bp_location11" \
 439     "set convenience variable \$foo to bp_location11"
 440
 441 gdb_test "break \$foo" \
 442     "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*" \
 443     "set breakpoint via convenience variable"
 444
 445 # Verify that GDB responds gracefully to an attempt to set a
 446 # breakpoint via a convenience variable whose type is not integer.
 447 #
 448
 449 gdb_test_no_output "set \$foo=81.5" \
 450     "set convenience variable \$foo to 81.5"
 451
 452 gdb_test "break \$foo" \
 453     "Convenience variables used in line specs must have integer values.*" \
 454     "set breakpoint via non-integer convenience variable disallowed"
 455
 456 # Verify that we can set and trigger a breakpoint in a user-called function.
 457 #
 458
 459 gdb_test "break marker2" \
 460     "Breakpoint (\[0-9\]*) at .*, line ($bp_location8|$bp_location9).*" \
 461     "set breakpoint on to-be-called function"
 462
 463 gdb_test "print marker2(99)" \
 464     "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.*" \
 465     "hit breakpoint on called function"
 466
 467 # As long as we're stopped (breakpointed) in a called function,
 468 # verify that we can successfully backtrace & such from here.
 469 #
 470 # In this and the following test, the _sr4export check apparently is needed
 471 # for hppa*-*-hpux.
 472 #
 473
 474 gdb_test_multiple "bt" "backtrace while in called function" {
 475     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*_sr4export.*$gdb_prompt $" {
 476         pass "backtrace while in called function"
 477     }
 478     -re "#0\[ \t\]*($hex in )?marker2.*:($bp_location8|$bp_location9)\r\n#1.*function called from gdb.*$gdb_prompt $" {
 479         pass "backtrace while in called function"
 480     }
 481 }
 482
 483 # Return from the called function.  For remote targets, it's important to do
 484 # this before runto_main, which otherwise may silently stop on the dummy
 485 # breakpoint inserted by GDB at the program's entry point.
 486 #
 487
 488 gdb_test_multiple "finish" "finish from called function" {
 489     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.* in _sr4export.*$gdb_prompt $" {
 490         pass "finish from called function"
 491     }
 492     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*function called from gdb.*$gdb_prompt $" {
 493         pass "finish from called function"
 494     }
 495     -re "Run till exit from .*marker2.* at .*($bp_location8|$bp_location9)\r\n.*Value returned.*$gdb_prompt $" {
 496         pass "finish from called function"
 497     }
 498 }
 499
 500 # Verify that GDB responds gracefully to a "finish" command with
 501 # arguments.
 502 #
 503 if ![runto_main] then { fail "sepdebug tests suppressed" }
 504
 505 gdb_test "finish 123" \
 506     "The \"finish\" command does not take any arguments.*" \
 507     "finish with arguments disallowed"
 508
 509 # Verify that GDB responds gracefully to a request to "finish" from
 510 # the outermost frame.  On a stub that never exits, this will just
 511 # run to the stubs routine, so we don't get this error...  Thus the
 512 # second condition.
 513 #
 514
 515 gdb_test_multiple "finish" "finish from outermost frame disallowed" {
 516     -re "\"finish\" not meaningful in the outermost frame.*$gdb_prompt $" {
 517         pass "finish from outermost frame disallowed"
 518     }
 519     -re "Run till exit from.*$gdb_prompt $" {
 520         pass "finish from outermost frame disallowed"
 521     }
 522 }
 523
 524 # Verify that we can explicitly ask GDB to stop on all shared library
 525 # events, and that it does so.
 526 #
 527 if [istarget "hppa*-*-hpux*"] then {
 528     if ![runto_main] then { fail "sepdebug tests suppressed" }
 529
 530     gdb_test_no_output "set stop-on-solib-events 1" \
 531         "set stop-on-solib-events"
 532
 533     gdb_test "run" \
 534         "Stopped due to shared library event.*" \
 535         "triggered stop-on-solib-events" \
 536         "Start it from the beginning.*y or n. $" \
 537         "y"
 538
 539     gdb_test_no_output "set stop-on-solib-events 0" \
 540       "reset stop-on-solib-events"
 541 }
 542
 543 # Hardware breakpoints are unsupported on HP-UX.  Verify that GDB
 544 # gracefully responds to requests to create them.
 545 #
 546 if [istarget "hppa*-*-hpux*"] then {
 547     if ![runto_main] then { fail "sepdebug tests suppressed" }
 548
 549     gdb_test "hbreak" \
 550         "No hardware breakpoint support in the target.*" \
 551         "hw breaks disallowed"
 552
 553     gdb_test "thbreak" \
 554       "No hardware breakpoint support in the target.*" \
 555       "temporary hw breaks disallowed"
 556 }
 557
 558 #********
 559
 560
 561 #
 562 # Test "next" over recursive function call.
 563 #
 564
 565 proc test_next_with_recursion {} {
 566     global gdb_prompt
 567     global decimal
 568     global binfile
 569
 570     gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
 571     delete_breakpoints
 572
 573     gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
 574
 575     # Run until we call factorial with 6
 576
 577     gdb_run_cmd
 578     gdb_expect {
 579         -re "Break.* factorial .value=6. .*$gdb_prompt $" {}
 580         -re ".*$gdb_prompt $" {
 581             fail "run to factorial(6)";
 582             gdb_suppress_tests;
 583         }
 584         timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
 585     }
 586
 587     # Continue until we call factorial recursively with 5.
 588
 589     if [gdb_test "continue" \
 590         "Continuing.*Break.* factorial .value=5. .*" \
 591         "continue to factorial(5)"] then { gdb_suppress_tests }
 592
 593     # Do a backtrace just to confirm how many levels deep we are.
 594
 595     if [gdb_test "backtrace" \
 596         "#0\[ \t\]+ factorial .value=5..*" \
 597         "backtrace from factorial(5)"] then { gdb_suppress_tests }
 598
 599     # Now a "next" should position us at the recursive call, which
 600     # we will be performing with 4.
 601
 602     if [gdb_test "next" \
 603         ".* factorial .value - 1.;.*" \
 604         "next to recursive call"] then { gdb_suppress_tests }
 605
 606     # Disable the breakpoint at the entry to factorial by deleting them all.
 607     # The "next" should run until we return to the next line from this
 608     # recursive call to factorial with 4.
 609     # Buggy versions of gdb will stop instead at the innermost frame on
 610     # the line where we are trying to "next" to.
 611
 612     delete_breakpoints
 613
 614     if [istarget "mips*tx39-*"] {
 615         set timeout 60
 616     }
 617     # We used to set timeout here for all other targets as well.  This
 618     # is almost certainly wrong.  The proper timeout depends on the
 619     # target system in use, and how we communicate with it, so there
 620     # is no single value appropriate for all targets.  The timeout
 621     # should be established by the Dejagnu config file(s) for the
 622     # board, and respected by the test suite.
 623     #
 624     # For example, if I'm running GDB over an SSH tunnel talking to a
 625     # portmaster in California talking to an ancient 68k board running
 626     # a crummy ROM monitor (a situation I can only wish were
 627     # hypothetical), then I need a large timeout.  But that's not the
 628     # kind of knowledge that belongs in this file.
 629
 630     gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
 631             "next over recursive call"
 632
 633     # OK, we should be back in the same stack frame we started from.
 634     # Do a backtrace just to confirm.
 635
 636     set result [gdb_test "backtrace" \
 637             "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
 638             "backtrace from factorial(5.1)"]
 639     if { $result != 0 } { gdb_suppress_tests }
 640
 641     if [target_info exists gdb,noresults] { gdb_suppress_tests }
 642   gdb_continue_to_end "recursive next test"
 643    gdb_stop_suppressing_tests;
 644 }
 645
 646 test_next_with_recursion
 647
 648
 649 #********
 650
 651 proc test_different_dir {type test_different_dir xfail} { with_test_prefix "$type" {
 652     global srcdir subdir objdir binfile srcfile timeout gdb_prompt
 653     global bp_location6 decimal hex
 654
 655     gdb_exit
 656     gdb_start
 657     gdb_reinitialize_dir $srcdir/$subdir
 658     gdb_test_no_output "set debug-file-directory ${test_different_dir}" \
 659         "set separate debug location"
 660     gdb_load ${binfile}
 661
 662     #
 663     # test break at function
 664     #
 665     if {$xfail} {
 666         setup_xfail "*-*-*"
 667     }
 668     gdb_test "break main" \
 669         "Breakpoint.*at.* file .*$srcfile, line.*" \
 670         "breakpoint function, optimized file"
 671
 672     #
 673     # test break at function
 674     #
 675     if {$xfail} {
 676         setup_xfail "*-*-*"
 677     }
 678     gdb_test "break marker4" \
 679         "Breakpoint.*at.* file .*$srcfile, line.*" \
 680         "breakpoint small function, optimized file"
 681
 682     #
 683     # run until the breakpoint at main is hit. For non-stubs-using targets.
 684     #
 685     gdb_run_cmd
 686     if {$xfail} {
 687         setup_xfail "*-*-*"
 688     }
 689     gdb_expect {
 690         -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
 691             pass "run until function breakpoint, optimized file"
 692         }
 693         -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
 694             pass "run until function breakpoint, optimized file (code motion)"
 695         }
 696         -re "$gdb_prompt $" {
 697             fail "run until function breakpoint, optimized file"
 698         }
 699         timeout {
 700             fail "run until function breakpoint, optimized file (timeout)"
 701         }
 702     }
 703
 704     #
 705     # run until the breakpoint at a small function
 706     #
 707
 708     #
 709     # Add a second pass pattern.  The behavior differs here between stabs
 710     # and dwarf for one-line functions.  Stabs preserves two line symbols
 711     # (one before the prologue and one after) with the same line number,
 712     # but dwarf regards these as duplicates and discards one of them.
 713     # Therefore the address after the prologue (where the breakpoint is)
 714     # has no exactly matching line symbol, and GDB reports the breakpoint
 715     # as if it were in the middle of a line rather than at the beginning.
 716
 717     set bp_location13 [gdb_get_line_number "set breakpoint 13 here"]
 718     set bp_location14 [gdb_get_line_number "set breakpoint 14 here"]
 719     if {$xfail} {
 720         setup_xfail "*-*-*"
 721     }
 722
 723     gdb_test_multiple "continue" "run until breakpoint set at small function, optimized file" {
 724         -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*$gdb_prompt $" {
 725             pass "run until breakpoint set at small function, optimized file"
 726         }
 727         -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile:$bp_location13\[\r\n\]+$bp_location13\[\t \]+void marker4.*$gdb_prompt $" {
 728             pass "run until breakpoint set at small function, optimized file"
 729         }
 730         -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*$gdb_prompt $" {
 731             # marker4() is defined at line 46 when compiled with -DPROTOTYPES
 732             pass "run until breakpoint set at small function, optimized file (line bp_location14)"
 733         }
 734     }
 735
 736
 737     # Reset the default arguments for VxWorks
 738     if [istarget "*-*-vxworks*"] {
 739         set timeout 10
 740         verbose "Timeout is now $timeout seconds" 2
 741         gdb_test_no_output "set args main"
 742     }
 743
 744 # proc test_different_dir
 745 }}
 746
 747
 748 # now move the .debug file to a different location so that we can test
 749 # the "set debug-file-directory" command.
 750
 751 set different_dir "${objdir}/${subdir}/${testfile}.dir"
 752 set debugfile "${different_dir}/${objdir}/${subdir}/${testfile}.debug"
 753 remote_exec build "rm -rf $different_dir"
 754 remote_exec build "mkdir -p [file dirname $debugfile]"
 755 remote_exec build "mv -f ${objdir}/${subdir}/${testfile}.debug $debugfile"
 756
 757 test_different_dir debuglink $different_dir 0
 758
 759
 760 # Test CRC mismatch is reported.
 761
 762 if {[build_executable sepdebug.exp sepdebug2 sepdebug2.c debug] != -1
 763     && ![gdb_gnu_strip_debug ${objdir}/${subdir}/sepdebug2]} {
 764
 765     remote_exec build "cp ${debugfile} ${objdir}/${subdir}/sepdebug2.debug"
 766
 767     gdb_exit
 768     gdb_start
 769     gdb_reinitialize_dir $srcdir/$subdir
 770
 771     set escapedobjdirsubdir [string_to_regexp ${objdir}/${subdir}]
 772
 773     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"
 774 }
 775
 776
 777 # NT_GNU_BUILD_ID / .note.gnu.build-id test:
 778
 779 set build_id_debug_filename [build_id_debug_filename_get $binfile]
 780 if ![string compare $build_id_debug_filename ""] then {
 781     unsupported "build-id is not supported by the compiler"
 782
 783     # Spare debug files may confuse testsuite runs in the future.
 784     remote_exec build "rm -f $debugfile"
 785 } else {
 786     set build_id_debugself_filename [build_id_debug_filename_get $debugfile]
 787     set test "build-id support by binutils"
 788     set xfail 0
 789     if ![string compare $build_id_debugself_filename ""] then {
 790         unsupported $test
 791         set xfail 1
 792     } elseif {[string compare $build_id_debugself_filename $build_id_debug_filename] != 0} then {
 793         fail $test
 794     } else {
 795         pass $test
 796     }
 797
 798     file mkdir [file dirname ${objdir}/${subdir}/${build_id_debug_filename}]
 799     remote_exec build "mv $debugfile ${objdir}/${subdir}/${build_id_debug_filename}"
 800
 801     test_different_dir build-id "${objdir}/${subdir}" $xfail
 802
 803     # Test also multiple directories can be specified.  Without the build-id
 804     # reference GDB would find the separate debug info just at the same
 805     # location as the executable file.
 806
 807     test_different_dir multiple-dirs "/doesnotexist:${objdir}/${subdir}" $xfail
 808
 809     # Spare debug files may confuse testsuite runs in the future.
 810     remote_exec build "rm -f ${objdir}/${subdir}/${build_id_debug_filename}"
 811 }