gdb/testsuite/gdb.trace/unavailable.exp

   1 # Copyright 1998-2014 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_1 {} {
 137     global cr
 138
 139     # Test printing the variables, and also their addresses.  We
 140     # haven't collected any stack, so there's no way GDB can figure
 141     # out the latter.
 142
 143     gdb_test "print argc" " = <unavailable>"
 144     gdb_test "print &argc" \
 145         "Can't take address of \"argc\" which isn't an lvalue\."
 146
 147     gdb_test "print argi" " = <unavailable>"
 148     gdb_test "print &argi" \
 149         "Can't take address of \"argi\" which isn't an lvalue\."
 150
 151     gdb_test "print argf" " = <unavailable>"
 152     gdb_test "print &argf" \
 153         "Can't take address of \"argf\" which isn't an lvalue\."
 154
 155     gdb_test "print argd" " = <unavailable>"
 156     gdb_test "print &argd" \
 157         "Can't take address of \"argd\" which isn't an lvalue\."
 158
 159     # struct arg as one of several args (near end of list)
 160
 161     gdb_test "print argstruct" " = <unavailable>"
 162
 163     gdb_test "print argstruct.memberc" " = <unavailable>"
 164     gdb_test "print argstruct.memberi" " = <unavailable>"
 165     gdb_test "print argstruct.memberf" " = <unavailable>"
 166     gdb_test "print argstruct.memberd" " = <unavailable>"
 167
 168     gdb_test "print argarray" " = <unavailable>"
 169
 170     gdb_test "print &argarray" \
 171         "Can't take address of \"argarray\" which isn't an lvalue\."
 172
 173     gdb_test "print argarray\[0\]" "value is not available"
 174
 175     # Test "info args"
 176     set r ""
 177     set r "${r}argc = <unavailable>${cr}"
 178     set r "${r}argi = <unavailable>${cr}"
 179     set r "${r}argf = <unavailable>${cr}"
 180     set r "${r}argd = <unavailable>${cr}"
 181     set r "${r}argstruct = <unavailable>${cr}"
 182     set r "${r}argarray = <unavailable>${cr}"
 183     gdb_test "info args" "$r" "info args"
 184
 185     test_maybe_regvar_display "argc"
 186 }
 187
 188 proc gdb_collect_args_test {} {
 189     with_test_prefix "unavailable arguments" {
 190         global gdb_prompt
 191
 192         prepare_for_trace_test
 193
 194         gdb_test "trace args_test_func" \
 195             "Tracepoint \[0-9\]+ at .*" \
 196             "set tracepoint"
 197
 198         # Begin the test.
 199         run_trace_experiment args_test_func
 200
 201         gdb_collect_args_test_1
 202
 203         gdb_test "tfind none" \
 204             "#0  end .*" \
 205             "cease trace debugging"
 206     }
 207 }
 208
 209 proc gdb_collect_locals_test_1 { func } {
 210     global cr
 211
 212     gdb_test "print locc" " = <unavailable>"
 213     gdb_test "print loci" " = <unavailable>"
 214     gdb_test "print locf" " = <unavailable>"
 215     gdb_test "print locd" " = <unavailable>"
 216
 217     gdb_test "print locst.memberc" " = <unavailable>"
 218     gdb_test "print locst.memberi" " = <unavailable>"
 219     gdb_test "print locst.memberf" " = <unavailable>"
 220     gdb_test "print locst.memberd" " = <unavailable>"
 221
 222     gdb_test "print locar\[0\]" " = <unavailable>"
 223     gdb_test "print locar\[1\]" " = <unavailable>"
 224     gdb_test "print locar\[2\]" " = <unavailable>"
 225     gdb_test "print locar\[3\]" " = <unavailable>"
 226
 227     # Test "info locals"
 228     set r ""
 229     set r "${r}locf = <unavailable>${cr}"
 230     set r "${r}locd = <unavailable>${cr}"
 231     set r "${r}locst = <unavailable>${cr}"
 232     set r "${r}locar = <unavailable>${cr}"
 233     set r "${r}i = <unavailable>${cr}"
 234     if { $func == "local_test_func" } {
 235         set r "${r}locdefst = <unavailable>${cr}"
 236     }
 237     set r "${r}locc = <unavailable>${cr}"
 238     set r "${r}loci = <unavailable>${cr}"
 239     gdb_test "info locals" "$r" "info locals"
 240
 241     test_maybe_regvar_display "loci"
 242 }
 243
 244 proc gdb_collect_locals_test { func msg } {
 245     with_test_prefix "unavailable locals: $msg" {
 246         global gdb_prompt
 247
 248         prepare_for_trace_test
 249
 250         set testline [gdb_get_line_number "set $func tracepoint here"]
 251
 252         gdb_test "trace $testline" \
 253             "Tracepoint \[0-9\]+ at .*" \
 254             "set tracepoint"
 255
 256         # Begin the test.
 257         run_trace_experiment $func
 258
 259         gdb_collect_locals_test_1 $func
 260
 261         gdb_test "tfind none" \
 262             "#0  end .*" \
 263             "cease trace debugging"
 264     }
 265 }
 266
 267 proc gdb_unavailable_registers_test_1 { } {
 268     global spreg
 269     global pcreg
 270
 271     # On some archs, the $sp/$pc are a real raw registers.  On others,
 272     # like x86, they're user registers.  Test both variants.
 273     test_register_unavailable "\$$spreg"
 274     test_register_unavailable "\$sp"
 275
 276     # Test reading uncollected pseudo-registers.  The set of which
 277     # depends on target.
 278     if [is_amd64_regs_target] {
 279         # Check the raw register first.
 280         test_register_unavailable "\$rax"
 281         test_register_unavailable "\$eax"
 282         test_register_unavailable "\$ax"
 283     } elseif [is_x86_like_target] {
 284         # Check the raw register first.
 285         test_register_unavailable "\$eax"
 286         test_register_unavailable "\$ax"
 287     }
 288
 289     # GDBserver always provides the PC value of regular tracepoint
 290     # hits, since it's the same as the tracepoint's address.
 291     test_register "\$$pcreg"
 292     test_register "\$pc"
 293
 294     gdb_test "info registers" \
 295         "<unavailable>.*<unavailable>" \
 296         "info registers, multiple registers not available"
 297
 298     gdb_test "info registers \$$spreg" \
 299         "<unavailable>" \
 300         "info registers \$$spreg reports not available"
 301 }
 302
 303 proc gdb_unavailable_registers_test { } {
 304     with_test_prefix "unavailable registers" {
 305
 306         prepare_for_trace_test
 307
 308         # We'll simply re-use the globals_test_function for this test
 309         gdb_test "trace globals_test_func" \
 310             "Tracepoint \[0-9\]+ at .*" \
 311             "set tracepoint"
 312
 313         # Collect nothing.
 314
 315         # Begin the test.
 316         run_trace_experiment globals_test_func
 317
 318         gdb_unavailable_registers_test_1
 319
 320         gdb_test "tfind none" "#0  end .*" "cease trace debugging"
 321     }
 322 }
 323
 324 proc gdb_unavailable_floats_1 { } {
 325     global gdb_prompt
 326
 327     # Necessarily target specific.
 328     if {[istarget "x86_64-*-*"] || [istarget i?86-*]} {
 329         send_gdb "info float\n"
 330         gdb_expect_list "info float" ".*$gdb_prompt $" {
 331             "Status Word:         <unavailable>"
 332             "Control Word:        <unavailable>"
 333             "Tag Word:            <unavailable>"
 334             "Instruction Pointer: <unavailable>:<unavailable>"
 335             "Operand Pointer:     <unavailable>:<unavailable>"
 336             "Opcode:              <unavailable>"
 337         }
 338     }
 339 }
 340
 341 proc gdb_unavailable_floats { } {
 342     with_test_prefix "unavailable floats" {
 343         prepare_for_trace_test
 344
 345         # We'll simply re-use the globals_test_function for this test
 346         gdb_test "trace globals_test_func" \
 347             "Tracepoint \[0-9\]+ at .*" \
 348             "set tracepoint"
 349
 350         # Collect nothing.
 351
 352         # Begin the test.
 353         run_trace_experiment globals_test_func
 354
 355         gdb_unavailable_floats_1
 356
 357         gdb_test "tfind none" "#0  end .*" "cease trace debugging"
 358     }
 359 }
 360
 361 proc gdb_collect_globals_test_1 { } {
 362     global ws
 363     global cr
 364     global gdb_prompt
 365     global hex
 366
 367     gdb_test "print globalc" " = <unavailable>"
 368     gdb_test "print globali" " = <unavailable>"
 369     gdb_test "print globalf" " = <unavailable>"
 370     gdb_test "print globald" " = <unavailable>"
 371
 372     gdb_test "print globalstruct.memberc" " = <unavailable>"
 373     gdb_test "print globalstruct.memberi" " = <unavailable>"
 374     gdb_test "print globalstruct.memberf" " = <unavailable>"
 375     gdb_test "print globalstruct.memberd" " = <unavailable>"
 376
 377     gdb_test "print globalstruct" " = <unavailable>"
 378
 379     gdb_test "print globalp == &globalstruct" \
 380         "value is not available" \
 381         "can't compare using non collected global pointer"
 382
 383     gdb_test "print globalarr\[1\]" " = <unavailable>"
 384     gdb_test "print globalarr\[2\]" " = <unavailable>"
 385     gdb_test "print globalarr\[3\]" " = <unavailable>"
 386
 387     gdb_test "print struct_b" \
 388         " = {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>}"
 389
 390     gdb_test "print /x struct_b" \
 391         " = {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>}"
 392
 393     gdb_test "print /x struct_b.struct_a" \
 394         " = {a = <unavailable>, b = <unavailable>, array = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}"
 395
 396     gdb_test "print /x struct_b.struct_a.array" \
 397         " = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}"
 398
 399     gdb_test "print /x struct_b.struct_a.array\[0\]" " = <unavailable>"
 400
 401     gdb_test "print /x struct_b.struct_a.array\[2\]" " = 0xaaaaaaaa"
 402
 403     # Check the target doesn't overcollect.  GDB used to merge memory
 404     # ranges to collect if they were close enough (collecting the hole
 405     # as well), but does not do that anymore.  It's plausible that a
 406     # target may do this on its end, but as of this writing, no known
 407     # target does it.
 408     gdb_test "print {a, b, c}" \
 409         " = \\{1, <unavailable>, 3\\}" \
 410         "No overcollect of almost but not quite adjacent memory ranges"
 411
 412     # Check <unavailable> isn't confused with 0 in array element repetitions
 413
 414     gdb_test_no_output "set print repeat 1"
 415
 416     gdb_test "print /x tarray" \
 417         " = \{\{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>\}" \
 418         "<unavailable> is not the same as 0 in array element repetitions"
 419
 420     gdb_test_no_output "set print repeat 10"
 421
 422     # Check that value repeat handles unavailable-ness.
 423     gdb_test "print *tarray@3" " = \\{\\{a = 0, b = <unavailable>\\}, \\{a = 0, b = <unavailable>\\}, \\{a = <unavailable>, b = <unavailable>\\}\\}"
 424
 425     # Static fields
 426
 427     gdb_test "print struct_b.static_struct_a" " = <unavailable>"
 428
 429     # Bitfields
 430
 431     gdb_test "print struct_b.struct_a.bitfield" " = <unavailable>"
 432
 433     # References
 434
 435     gdb_test "print g_int" " = <unavailable>"
 436
 437     gdb_test "print g_ref" \
 438         "\\(int &\\) @$hex: <unavailable>" \
 439         "global reference shows address but not value"
 440
 441     gdb_test "print *&g_ref" \
 442         "\\$\[0-9\]+ = <unavailable>$cr" \
 443         "referenced integer was not collected (taking address of reference)"
 444
 445     gdb_test "print *g_structref_p" " = <unavailable>"
 446
 447     # Strings
 448
 449     # Const string is always available, even when not collected.
 450     gdb_test "print g_const_string" \
 451         " = \"hello world\"$cr" \
 452         "non collected const string is still printable"
 453
 454     gdb_test "print g_string_p" \
 455         " = $hex <g_const_string> \"hello world\"" \
 456         "printing constant string through collected pointer"
 457
 458     gdb_test "print g_string_unavail" \
 459         " = <unavailable>" \
 460         "printing non collected string"
 461
 462     # Incomplete strings print as an array.
 463     gdb_test "print g_string_partial" \
 464         "\\$\[0-9\]+ = \{<unavailable>, 101 'e', 108 'l', <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>\}" \
 465         "printing partially collected string"
 466
 467     # It is important for this test that the last examined value is
 468     # <unavailable>, to exercise the case of the $__ convenience
 469     # variable being set to <unavailable> without error.
 470     set msg "examining partially collected object"
 471     gdb_test_multiple "x /10x &struct_b" "$msg" {
 472         -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 $" {
 473             pass "$msg"
 474         }
 475         -re "value is not available" {
 476             fail "$msg"
 477         }
 478     }
 479
 480     gdb_test "p \$__" " = <unavailable>" "last examined value was <unavailable>"
 481
 482     # This tests that building the array does not require accessing
 483     # g_int's contents.
 484     gdb_test "print { 1, g_int, 3 }" \
 485         " = \\{1, <unavailable>, 3\\}" \
 486         "build array from unavailable value"
 487
 488     # Note, depends on previous test.
 489     gdb_test "print \$\[1\]" \
 490         " = <unavailable>" \
 491         "subscript a non-memory rvalue array, accessing an unvailable element"
 492
 493     # Access a field of a non-lazy value, making sure the
 494     # unavailable-ness is propagated.  History values are easy
 495     # non-lazy values, so use those.  The first test just sets up for
 496     # the second.
 497     gdb_test "print g_smallstruct" " = <unavailable>"
 498     gdb_test "print \$.member" " = <unavailable>"
 499
 500     # Cast to baseclass, checking the unavailable-ness is propagated.
 501     gdb_test "print (small_struct) g_smallstruct_b" " = <unavailable>"
 502
 503     # Same cast, but starting from a non-lazy, value.
 504     gdb_test "print g_smallstruct_b" " = <unavailable>"
 505     gdb_test "print (small_struct) \$" " = <unavailable>"
 506
 507     gdb_test_no_output "set print object on"
 508
 509     with_test_prefix "print object on" {
 510         # With print object on, printing a pointer may need to fetch
 511         # the pointed-to object, to check its run-time type.  Make
 512         # sure that fails gracefully and transparently when the
 513         # pointer itself is unavailable.
 514         gdb_test "print virtualp" " = <unavailable>"
 515
 516         # no vtable pointer available
 517         gdb_test "print derived_unavail" " = <unavailable>"
 518
 519         # vtable pointer available, but nothing else
 520         gdb_test "print derived_partial" \
 521             " = \\(Derived\\) {<Middle> = {<Base> = <unavailable>, _vptr.Middle = <unavailable>, y = <unavailable>}, _vptr.Derived = $hex <vtable for Derived.*>, z = <unavailable>}"
 522
 523         # whole object available
 524         gdb_test "print derived_whole" \
 525             " = \\(Derived\\) {<Middle> = {<Base> = {x = 2}, _vptr.Middle = $hex, y = 3}, _vptr.Derived = $hex <vtable for Derived.*>, z = 4}"
 526     }
 527
 528     gdb_test_no_output "set print object off"
 529
 530     with_test_prefix "print object off" {
 531         gdb_test "print virtualp" " = <unavailable>"
 532
 533         # no vtable pointer available
 534         gdb_test "print derived_unavail" \
 535             " = <unavailable>"
 536
 537         # vtable pointer available, but nothing else
 538         gdb_test "print derived_partial" \
 539             " = {<Middle> = {<Base> = <unavailable>, _vptr.Middle = <unavailable>, y = <unavailable>}, _vptr.Derived = $hex <vtable for Derived.*>, z = <unavailable>}"
 540
 541         # whole object available
 542         gdb_test "print derived_whole" \
 543             " = {<Middle> = {<Base> = {x = 2}, _vptr.Middle = $hex, y = 3}, _vptr.Derived = $hex <vtable for Derived.*>, z = 4}"
 544     }
 545
 546     # An instance of a virtual class where we collected everything but
 547     # the vptr.
 548     gdb_test "print virtual_partial" \
 549         " = {_vptr.Virtual = <unavailable>, z = 0}"
 550 }
 551
 552 proc gdb_collect_globals_test { } {
 553     with_test_prefix "collect globals" {
 554         prepare_for_trace_test
 555
 556         set testline [gdb_get_line_number "set globals_test_func tracepoint here"]
 557
 558         gdb_test "trace $testline" \
 559             "Tracepoint \[0-9\]+ at .*" \
 560             "set tracepoint"
 561
 562         # We collect the initial sizeof(pointer) bytes of derived_partial
 563         # in an attempt of collecting the vptr.  Not portable, but should
 564         # work everywhere we need to care.
 565         gdb_trace_setactions "define actions" \
 566             "" \
 567             "collect struct_b.struct_a.array\[2\]" "^$" \
 568             "collect struct_b.struct_a.array\[100\]" "^$" \
 569             \
 570             "collect a" "^$" \
 571             "collect c" "^$" \
 572             \
 573             "collect tarray\[0\].a" "^$" \
 574             "collect tarray\[1\].a" "^$" \
 575             "collect tarray\[3\].a" "^$" \
 576             "collect tarray\[3\].b" "^$" \
 577             "collect tarray\[4\].b" "^$" \
 578             "collect tarray\[5\].b" "^$" \
 579             \
 580             "collect g_string_p" "^$" \
 581             "collect g_string_partial\[1\]" "^$" \
 582             "collect g_string_partial\[2\]" "^$" \
 583             \
 584             "collect g_structref_p" "^$" \
 585             \
 586             "collect *((char *)&derived_partial)@sizeof\(void *\)" "^$" \
 587             "collect derived_whole" "^$" \
 588             \
 589             "collect virtual_partial.z" "^$"
 590
 591         # Begin the test.
 592         run_trace_experiment globals_test_func
 593
 594         gdb_collect_globals_test_1
 595
 596         gdb_test "tfind none" \
 597             "#0  end .*" \
 598             "cease trace debugging"
 599     }
 600 }
 601
 602 proc gdb_trace_collection_test {} {
 603     gdb_collect_globals_test
 604     gdb_unavailable_registers_test
 605     gdb_unavailable_floats
 606
 607     gdb_collect_args_test
 608     gdb_collect_locals_test local_test_func "auto locals"
 609     gdb_collect_locals_test reglocal_test_func "register locals"
 610     gdb_collect_locals_test statlocal_test_func "static locals"
 611 }
 612
 613 runto_main
 614
 615 if { ![gdb_target_supports_trace] } then {
 616     unsupported "Current target does not support trace"
 617     return 1
 618 }
 619
 620 # Body of test encased in a proc so we can return prematurely.
 621 gdb_trace_collection_test
 622
 623 # Finished!
 624 gdb_test "tfind none" ".*" ""