gdb/testsuite/gdb.trace/unavailable.exp

   1 # Copyright 1998-2013 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 load_lib "trace-support.exp"
  17
  18 standard_testfile unavailable.cc
  19 set executable $testfile
  20
  21 if {[prepare_for_testing $testfile.exp $testfile $srcfile \
  22          {debug nowarnings c++}]} {
  23     return -1
  24 }
  25
  26 set ws "\[\r\n\t \]+"
  27 set cr "\[\r\n\]+"
  28
  29 if [is_amd64_regs_target] {
  30     set fpreg "rbp"
  31     set spreg "rsp"
  32     set pcreg "rip"
  33 } elseif [is_x86_like_target] {
  34     set fpreg "ebp"
  35     set spreg "esp"
  36     set pcreg "eip"
  37 } else {
  38     set fpreg "fp"
  39     set spreg "sp"
  40     set pcreg "pc"
  41 }
  42
  43 #
  44 # Utility procs
  45 #
  46
  47 proc test_register { reg } {
  48     global gdb_prompt
  49     global hex
  50     global cr
  51
  52     gdb_test_multiple "print /x $reg" "collected $reg" {
  53         -re "\\$\[0-9\]+ = \[x0\]+$cr$gdb_prompt $" {
  54             fail "collected $reg (zero)"
  55         }
  56         -re "\\$\[0-9\]+ = $hex$cr$gdb_prompt $" {
  57             pass "collected $reg"
  58         }
  59         -re "\[Ee\]rror.*$gdb_prompt $" {
  60             fail "collected $reg (error)"
  61         }
  62     }
  63 }
  64
  65 proc test_register_unavailable { reg } {
  66     gdb_test "print /x $reg" \
  67         "<unavailable>" \
  68         "correctly report $reg as unavailable"
  69 }
  70
  71 proc prepare_for_trace_test {} {
  72     global executable
  73
  74     clean_restart $executable
  75
  76     runto_main
  77
  78     gdb_test "break begin" ".*" ""
  79     gdb_test "break end" ".*" ""
  80 }
  81
  82 proc run_trace_experiment { test_func } {
  83     global gdb_prompt
  84
  85     gdb_test "continue" \
  86         ".*Breakpoint \[0-9\]+, begin .*" \
  87         "advance to begin"
  88
  89     gdb_test_no_output "tstart" "start trace experiment"
  90
  91     gdb_test "continue" \
  92             "Continuing.*Breakpoint \[0-9\]+, end.*" \
  93             "run trace experiment"
  94     gdb_test "tstop" \
  95             "\[\r\n\]+" \
  96             "stop trace experiment"
  97     gdb_test "tfind start" \
  98             "#0  $test_func .*" \
  99             "tfind test frame"
 100 }
 101
 102 # Test that "display VAR" works as expected, assuming VAR is wholly
 103 # unavailable.
 104
 105 proc test_maybe_regvar_display { var } {
 106     global gdb_prompt
 107
 108     # Evaluating VAR's location description may throw an internal
 109     # "unavailable" exception, if for example, the value of a register
 110     # necessary for computing VAR's location is unavailable.  Such an
 111     # exception is caught, and should not cause automatic disablement
 112     # of the current display being printed.  (GDB used to disable the
 113     # current display whenever any exception was thrown.)
 114     set test "display $var"
 115     gdb_test_multiple "$test" "$test" {
 116         -re "Disabling display ? to avoid infinite recursion.*$gdb_prompt $" {
 117             fail "$test"
 118         }
 119         -re "display ${var}\r\n1: ${var} = <unavailable>\r\n$gdb_prompt $" {
 120             pass "$test"
 121         }
 122     }
 123     gdb_test "info display" ".*1:\[ \t\]+y\[ \t\]+${var}" "display ${var} is enabled"
 124
 125     gdb_test "undisp" \
 126         "" \
 127         "delete $var display" \
 128         ".*Delete all auto-display expressions.*y or n. $" \
 129         "y"
 130 }
 131
 132 #
 133 # Test procs
 134 #
 135
 136 proc gdb_collect_args_test {} {
 137     with_test_prefix "unavailable arguments" {
 138         global cr
 139         global gdb_prompt
 140
 141         prepare_for_trace_test
 142
 143         gdb_test "trace args_test_func" \
 144             "Tracepoint \[0-9\]+ at .*" \
 145             "set tracepoint"
 146
 147         # Begin the test.
 148         run_trace_experiment args_test_func
 149
 150         # Test printing the variables, and also their addresses.  We
 151         # haven't collected any stack, so there's no way GDB can figure
 152         # out the latter.
 153
 154         gdb_test "print argc" " = <unavailable>"
 155         gdb_test "print &argc" \
 156             "Can't take address of \"argc\" which isn't an lvalue\."
 157
 158         gdb_test "print argi" " = <unavailable>"
 159         gdb_test "print &argi" \
 160             "Can't take address of \"argi\" which isn't an lvalue\."
 161
 162         gdb_test "print argf" " = <unavailable>"
 163         gdb_test "print &argf" \
 164             "Can't take address of \"argf\" which isn't an lvalue\."
 165
 166         gdb_test "print argd" " = <unavailable>"
 167         gdb_test "print &argd" \
 168             "Can't take address of \"argd\" which isn't an lvalue\."
 169
 170         # struct arg as one of several args (near end of list)
 171
 172         gdb_test "print argstruct" " = <unavailable>"
 173
 174         gdb_test "print argstruct.memberc" " = <unavailable>"
 175         gdb_test "print argstruct.memberi" " = <unavailable>"
 176         gdb_test "print argstruct.memberf" " = <unavailable>"
 177         gdb_test "print argstruct.memberd" " = <unavailable>"
 178
 179         gdb_test "print argarray" " = <unavailable>"
 180
 181         gdb_test "print &argarray" \
 182             "Can't take address of \"argarray\" which isn't an lvalue\."
 183
 184         gdb_test "print argarray\[0\]" "value is not available"
 185
 186         # Test "info args"
 187         set r ""
 188         set r "${r}argc = <unavailable>${cr}"
 189         set r "${r}argi = <unavailable>${cr}"
 190         set r "${r}argf = <unavailable>${cr}"
 191         set r "${r}argd = <unavailable>${cr}"
 192         set r "${r}argstruct = <unavailable>${cr}"
 193         set r "${r}argarray = <unavailable>${cr}"
 194         gdb_test "info args" "$r" "info args"
 195
 196         test_maybe_regvar_display "argc"
 197
 198         gdb_test "tfind none" \
 199             "#0  end .*" \
 200             "cease trace debugging"
 201     }
 202 }
 203
 204 proc gdb_collect_locals_test { func msg } {
 205     with_test_prefix "unavailable locals: $msg" {
 206         global cr
 207         global gdb_prompt
 208
 209         prepare_for_trace_test
 210
 211         set testline [gdb_get_line_number "set $func tracepoint here"]
 212
 213         gdb_test "trace $testline" \
 214             "Tracepoint \[0-9\]+ at .*" \
 215             "set tracepoint"
 216
 217         # Begin the test.
 218         run_trace_experiment $func
 219
 220         gdb_test "print locc" " = <unavailable>"
 221         gdb_test "print loci" " = <unavailable>"
 222         gdb_test "print locf" " = <unavailable>"
 223         gdb_test "print locd" " = <unavailable>"
 224
 225         gdb_test "print locst.memberc" " = <unavailable>"
 226         gdb_test "print locst.memberi" " = <unavailable>"
 227         gdb_test "print locst.memberf" " = <unavailable>"
 228         gdb_test "print locst.memberd" " = <unavailable>"
 229
 230         gdb_test "print locar\[0\]" " = <unavailable>"
 231         gdb_test "print locar\[1\]" " = <unavailable>"
 232         gdb_test "print locar\[2\]" " = <unavailable>"
 233         gdb_test "print locar\[3\]" " = <unavailable>"
 234
 235         # Test "info locals"
 236         set r ""
 237         set r "${r}locf = <unavailable>${cr}"
 238         set r "${r}locd = <unavailable>${cr}"
 239         set r "${r}locst = <unavailable>${cr}"
 240         set r "${r}locar = <unavailable>${cr}"
 241         set r "${r}i = <unavailable>${cr}"
 242         if { $func == "local_test_func" } {
 243             set r "${r}locdefst = <unavailable>${cr}"
 244         }
 245         set r "${r}locc = <unavailable>${cr}"
 246         set r "${r}loci = <unavailable>${cr}"
 247         gdb_test "info locals" "$r" "info locals"
 248
 249         test_maybe_regvar_display "loci"
 250
 251         gdb_test "tfind none" \
 252             "#0  end .*" \
 253             "cease trace debugging"
 254     }
 255 }
 256
 257 proc gdb_unavailable_registers_test { } {
 258     with_test_prefix "unavailable registers" {
 259         global gdb_prompt
 260         global spreg
 261         global pcreg
 262
 263         prepare_for_trace_test
 264
 265         # We'll simply re-use the globals_test_function for this test
 266         gdb_test "trace globals_test_func" \
 267             "Tracepoint \[0-9\]+ at .*" \
 268             "set tracepoint"
 269
 270         # Collect nothing.
 271
 272         # Begin the test.
 273         run_trace_experiment globals_test_func
 274
 275         # On some archs, the $sp/$pc are a real raw registers.  On others,
 276         # like x86, they're user registers.  Test both variants.
 277         test_register_unavailable "\$$spreg"
 278         test_register_unavailable "\$sp"
 279
 280         # Test reading uncollected pseudo-registers.  The set of which
 281         # depends on target.
 282         if [is_amd64_regs_target] {
 283             # Check the raw register first.
 284             test_register_unavailable "\$rax"
 285             test_register_unavailable "\$eax"
 286             test_register_unavailable "\$ax"
 287         } elseif [is_x86_like_target] {
 288             # Check the raw register first.
 289             test_register_unavailable "\$eax"
 290             test_register_unavailable "\$ax"
 291         }
 292
 293         # GDBserver always provides the PC value of regular tracepoint
 294         # hits, since it's the same as the tracepoint's address.
 295         test_register "\$$pcreg"
 296         test_register "\$pc"
 297
 298         gdb_test "info registers" \
 299             "<unavailable>.*<unavailable>" \
 300             "info registers, multiple registers not available"
 301
 302         gdb_test "info registers \$$spreg" \
 303             "<unavailable>" \
 304             "info registers \$$spreg reports not available"
 305
 306         gdb_test "tfind none" "#0  end .*" "cease trace debugging"
 307     }
 308 }
 309
 310 proc gdb_unavailable_floats { } {
 311     global gdb_prompt
 312
 313     with_test_prefix "unavailable floats" {
 314         prepare_for_trace_test
 315
 316         # We'll simply re-use the globals_test_function for this test
 317         gdb_test "trace globals_test_func" \
 318             "Tracepoint \[0-9\]+ at .*" \
 319             "set tracepoint"
 320
 321         # Collect nothing.
 322
 323         # Begin the test.
 324         run_trace_experiment globals_test_func
 325
 326         # Necessarily target specific.
 327         if {[istarget "x86_64-*-*"] || [istarget i?86-*]} {
 328             send_gdb "info float\n"
 329             gdb_expect_list "info float" ".*$gdb_prompt $" {
 330                 "Status Word:         <unavailable>"
 331                 "Control Word:        <unavailable>"
 332                 "Tag Word:            <unavailable>"
 333                 "Instruction Pointer: <unavailable>:<unavailable>"
 334                 "Operand Pointer:     <unavailable>:<unavailable>"
 335                 "Opcode:              <unavailable>"
 336             }
 337         }
 338
 339         gdb_test "tfind none" "#0  end .*" "cease trace debugging"
 340     }
 341 }
 342
 343 proc gdb_collect_globals_test { } {
 344     with_test_prefix "collect globals" {
 345         global ws
 346         global cr
 347         global gdb_prompt
 348         global hex
 349
 350         prepare_for_trace_test
 351
 352         set testline [gdb_get_line_number "set globals_test_func tracepoint here"]
 353
 354         gdb_test "trace $testline" \
 355             "Tracepoint \[0-9\]+ at .*" \
 356             "set tracepoint"
 357
 358         # We collect the initial sizeof(pointer) bytes of derived_partial
 359         # in an attempt of collecting the vptr.  Not portable, but should
 360         # work everywhere we need to care.
 361         gdb_trace_setactions "define actions" \
 362             "" \
 363             "collect struct_b.struct_a.array\[2\]" "^$" \
 364             "collect struct_b.struct_a.array\[100\]" "^$" \
 365             \
 366             "collect a" "^$" \
 367             "collect c" "^$" \
 368             \
 369             "collect tarray\[0\].a" "^$" \
 370             "collect tarray\[1\].a" "^$" \
 371             "collect tarray\[3\].a" "^$" \
 372             "collect tarray\[3\].b" "^$" \
 373             "collect tarray\[4\].b" "^$" \
 374             "collect tarray\[5\].b" "^$" \
 375             \
 376             "collect g_string_p" "^$" \
 377             "collect g_string_partial\[1\]" "^$" \
 378             "collect g_string_partial\[2\]" "^$" \
 379             \
 380             "collect g_structref_p" "^$" \
 381             \
 382             "collect *((char *)&derived_partial)@sizeof\(void *\)" "^$" \
 383             "collect derived_whole" "^$" \
 384             \
 385             "collect virtual_partial.z" "^$"
 386
 387         # Begin the test.
 388         run_trace_experiment globals_test_func
 389
 390         gdb_test "print globalc" " = <unavailable>"
 391         gdb_test "print globali" " = <unavailable>"
 392         gdb_test "print globalf" " = <unavailable>"
 393         gdb_test "print globald" " = <unavailable>"
 394
 395         gdb_test "print globalstruct.memberc" " = <unavailable>"
 396         gdb_test "print globalstruct.memberi" " = <unavailable>"
 397         gdb_test "print globalstruct.memberf" " = <unavailable>"
 398         gdb_test "print globalstruct.memberd" " = <unavailable>"
 399
 400         gdb_test "print globalstruct" " = <unavailable>"
 401
 402         gdb_test "print globalp == &globalstruct" \
 403             "value is not available" \
 404             "can't compare using non collected global pointer"
 405
 406         gdb_test "print globalarr\[1\]" " = <unavailable>"
 407         gdb_test "print globalarr\[2\]" " = <unavailable>"
 408         gdb_test "print globalarr\[3\]" " = <unavailable>"
 409
 410         gdb_test "print struct_b" \
 411             " = {d = <unavailable>, ef = <unavailable>, struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable>, <unavailable>, -1431655766, <unavailable> <repeats 97 times>, -1431655766, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}, s = <unavailable>, static static_struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable> <repeats 10000 times>}, ptr = <unavailable>, bitfield = <unavailable>}, string = <unavailable>}"
 412
 413         gdb_test "print /x struct_b" \
 414             " = {d = <unavailable>, ef = <unavailable>, struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}, s = <unavailable>, static static_struct_a = {a = <unavailable>, b = <unavailable>, array = {<unavailable> <repeats 10000 times>}, ptr = <unavailable>, bitfield = <unavailable>}, string = <unavailable>}"
 415
 416         gdb_test "print /x struct_b.struct_a" \
 417             " = {a = <unavailable>, b = <unavailable>, array = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}"
 418
 419         gdb_test "print /x struct_b.struct_a.array" \
 420             " = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}"
 421
 422         gdb_test "print /x struct_b.struct_a.array\[0\]" " = <unavailable>"
 423
 424         gdb_test "print /x struct_b.struct_a.array\[2\]" " = 0xaaaaaaaa"
 425
 426         # Check the target doesn't overcollect.  GDB used to merge memory
 427         # ranges to collect if they were close enough (collecting the hole
 428         # as well), but does not do that anymore.  It's plausible that a
 429         # target may do this on its end, but as of this writing, no known
 430         # target does it.
 431         gdb_test "print {a, b, c}" \
 432             " = \\{1, <unavailable>, 3\\}" \
 433             "No overcollect of almost but not quite adjacent memory ranges"
 434
 435         # Check <unavailable> isn't confused with 0 in array element repetitions
 436
 437         gdb_test_no_output "set print repeat 1"
 438
 439         gdb_test "print /x tarray" \
 440             " = \{\{a = 0x0, b = <unavailable>\} <repeats 2 times>, \{a = <unavailable>, b = <unavailable>\}, \{a = 0x0, b = 0x0\}, \{a = <unavailable>, b = 0x0\} <repeats 2 times>, \{a = <unavailable>, b = <unavailable>\} <repeats 2 times>\}" \
 441             "<unavailable> is not the same as 0 in array element repetitions"
 442
 443         gdb_test_no_output "set print repeat 10"
 444
 445         # Check that value repeat handles unavailable-ness.
 446         gdb_test "print *tarray@3" " = \\{\\{a = 0, b = <unavailable>\\}, \\{a = 0, b = <unavailable>\\}, \\{a = <unavailable>, b = <unavailable>\\}\\}"
 447
 448         # Static fields
 449
 450         gdb_test "print struct_b.static_struct_a" " = <unavailable>"
 451
 452         # Bitfields
 453
 454         gdb_test "print struct_b.struct_a.bitfield" " = <unavailable>"
 455
 456         # References
 457
 458         gdb_test "print g_int" " = <unavailable>"
 459
 460         gdb_test "print g_ref" \
 461             "\\(int &\\) @$hex: <unavailable>" \
 462             "global reference shows address but not value"
 463
 464         gdb_test "print *&g_ref" \
 465             "\\$\[0-9\]+ = <unavailable>$cr" \
 466             "referenced integer was not collected (taking address of reference)"
 467
 468         gdb_test "print *g_structref_p" " = <unavailable>"
 469
 470         # Strings
 471
 472         # Const string is always available, even when not collected.
 473         gdb_test "print g_const_string" \
 474             " = \"hello world\"$cr" \
 475             "non collected const string is still printable"
 476
 477         gdb_test "print g_string_p" \
 478             " = $hex <g_const_string> \"hello world\"" \
 479             "printing constant string through collected pointer"
 480
 481         gdb_test "print g_string_unavail" \
 482             " = <unavailable>" \
 483             "printing non collected string"
 484
 485         # Incomplete strings print as an array.
 486         gdb_test "print g_string_partial" \
 487             "\\$\[0-9\]+ = \{<unavailable>, 101 'e', 108 'l', <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>\}" \
 488             "printing partially collected string"
 489
 490         # It is important for this test that the last examined value is
 491         # <unavailable>, to exercise the case of the $__ convenience
 492         # variable being set to <unavailable> without error.
 493         set msg "examining partially collected object"
 494         gdb_test_multiple "x /10x &struct_b" "$msg" {
 495             -re "$hex <struct_b>:${ws}<unavailable>${ws}<unavailable>${ws}<unavailable>${ws}<unavailable>$cr$hex <struct_b\\+16>:${ws}<unavailable>${ws}<unavailable>${ws}0xaaaaaaaa${ws}<unavailable>$cr$hex <struct_b\\+32>:${ws}<unavailable>${ws}<unavailable>$cr$gdb_prompt $" {
 496                 pass "$msg"
 497             }
 498             -re "value is not available" {
 499                 fail "$msg"
 500             }
 501         }
 502
 503         gdb_test "p \$__" " = <unavailable>" "last examined value was <unavailable>"
 504
 505         # This tests that building the array does not require accessing
 506         # g_int's contents.
 507         gdb_test "print { 1, g_int, 3 }" \
 508             " = \\{1, <unavailable>, 3\\}" \
 509             "build array from unavailable value"
 510
 511         # Note, depends on previous test.
 512         gdb_test "print \$\[1\]" \
 513             " = <unavailable>" \
 514             "subscript a non-memory rvalue array, accessing an unvailable element"
 515
 516         # Access a field of a non-lazy value, making sure the
 517         # unavailable-ness is propagated.  History values are easy
 518         # non-lazy values, so use those.  The first test just sets up for
 519         # the second.
 520         gdb_test "print g_smallstruct" " = <unavailable>"
 521         gdb_test "print \$.member" " = <unavailable>"
 522
 523         # Cast to baseclass, checking the unavailable-ness is propagated.
 524         gdb_test "print (small_struct) g_smallstruct_b" " = <unavailable>"
 525
 526         # Same cast, but starting from a non-lazy, value.
 527         gdb_test "print g_smallstruct_b" " = <unavailable>"
 528         gdb_test "print (small_struct) \$" " = <unavailable>"
 529
 530         gdb_test_no_output "set print object on"
 531
 532         with_test_prefix "print object on" {
 533             # With print object on, printing a pointer may need to fetch
 534             # the pointed-to object, to check its run-time type.  Make
 535             # sure that fails gracefully and transparently when the
 536             # pointer itself is unavailable.
 537             gdb_test "print virtualp" " = <unavailable>"
 538
 539             # no vtable pointer available
 540             gdb_test "print derived_unavail" " = <unavailable>"
 541
 542             # vtable pointer available, but nothing else
 543             gdb_test "print derived_partial" \
 544                 " = \\(Derived\\) {<Middle> = {<Base> = <unavailable>, _vptr.Middle = <unavailable>, y = <unavailable>}, _vptr.Derived = $hex <vtable for Derived.*>, z = <unavailable>}"
 545
 546             # whole object available
 547             gdb_test "print derived_whole" \
 548                 " = \\(Derived\\) {<Middle> = {<Base> = {x = 2}, _vptr.Middle = $hex, y = 3}, _vptr.Derived = $hex <vtable for Derived.*>, z = 4}"
 549         }
 550
 551         gdb_test_no_output "set print object off"
 552
 553         with_test_prefix "print object off" {
 554             gdb_test "print virtualp" " = <unavailable>"
 555
 556             # no vtable pointer available
 557             gdb_test "print derived_unavail" \
 558                 " = <unavailable>"
 559
 560             # vtable pointer available, but nothing else
 561             gdb_test "print derived_partial" \
 562                 " = {<Middle> = {<Base> = <unavailable>, _vptr.Middle = <unavailable>, y = <unavailable>}, _vptr.Derived = $hex <vtable for Derived.*>, z = <unavailable>}"
 563
 564             # whole object available
 565             gdb_test "print derived_whole" \
 566                 " = {<Middle> = {<Base> = {x = 2}, _vptr.Middle = $hex, y = 3}, _vptr.Derived = $hex <vtable for Derived.*>, z = 4}"
 567         }
 568
 569         # An instance of a virtual class where we collected everything but
 570         # the vptr.
 571         gdb_test "print virtual_partial" \
 572             " = {_vptr.Virtual = <unavailable>, z = 0}"
 573
 574         gdb_test "tfind none" \
 575             "#0  end .*" \
 576             "cease trace debugging"
 577     }
 578 }
 579
 580 proc gdb_trace_collection_test {} {
 581     gdb_collect_globals_test
 582     gdb_unavailable_registers_test
 583     gdb_unavailable_floats
 584
 585     gdb_collect_args_test
 586     gdb_collect_locals_test local_test_func "auto locals"
 587     gdb_collect_locals_test reglocal_test_func "register locals"
 588     gdb_collect_locals_test statlocal_test_func "static locals"
 589 }
 590
 591 runto_main
 592
 593 if { ![gdb_target_supports_trace] } then {
 594     unsupported "Current target does not support trace"
 595     return 1
 596 }
 597
 598 # Body of test encased in a proc so we can return prematurely.
 599 gdb_trace_collection_test
 600
 601 # Finished!
 602 gdb_test "tfind none" ".*" ""