gdb/testsuite/gdb.trace/unavailable.exp

   1 # Copyright 1998, 2005, 2007-2012 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 set testfile "unavailable"
  19 set srcfile ${testfile}.cc
  20 set executable $testfile
  21 set binfile $objdir/$subdir/$executable
  22
  23 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  24         executable {debug nowarnings c++}] != "" } {
  25     untested unavailable.exp
  26     return -1
  27 }
  28
  29 set ws "\[\r\n\t \]+"
  30 set cr "\[\r\n\]+"
  31
  32 if [is_amd64_regs_target] {
  33     set fpreg "rbp"
  34     set spreg "rsp"
  35     set pcreg "rip"
  36 } elseif [is_x86_like_target] {
  37     set fpreg "ebp"
  38     set spreg "esp"
  39     set pcreg "eip"
  40 } else {
  41     set fpreg "fp"
  42     set spreg "sp"
  43     set pcreg "pc"
  44 }
  45
  46 #
  47 # Utility procs
  48 #
  49
  50 proc test_register { reg } {
  51     global gdb_prompt
  52     global hex
  53     global cr
  54
  55     gdb_test_multiple "print /x $reg" "collected $reg" {
  56         -re "\\$\[0-9\]+ = \[x0\]+$cr$gdb_prompt $" {
  57             fail "collected $reg (zero)"
  58         }
  59         -re "\\$\[0-9\]+ = $hex$cr$gdb_prompt $" {
  60             pass "collected $reg"
  61         }
  62         -re "\[Ee\]rror.*$gdb_prompt $" {
  63             fail "collected $reg (error)"
  64         }
  65     }
  66 }
  67
  68 proc test_register_unavailable { reg } {
  69     gdb_test "print /x $reg" \
  70         "<unavailable>" \
  71         "correctly report $reg as unavailable"
  72 }
  73
  74 proc prepare_for_trace_test {} {
  75     global executable
  76
  77     clean_restart $executable
  78
  79     runto_main
  80
  81     gdb_test "break begin" ".*" ""
  82     gdb_test "break end" ".*" ""
  83 }
  84
  85 proc run_trace_experiment { test_func } {
  86     global gdb_prompt
  87
  88     gdb_test "continue" \
  89         ".*Breakpoint \[0-9\]+, begin .*" \
  90         "advance to begin"
  91
  92     gdb_test_no_output "tstart" "start trace experiment"
  93
  94     gdb_test "continue" \
  95             "Continuing.*Breakpoint \[0-9\]+, end.*" \
  96             "run trace experiment"
  97     gdb_test "tstop" \
  98             "\[\r\n\]+" \
  99             "stop trace experiment"
 100     gdb_test "tfind start" \
 101             "#0  $test_func .*" \
 102             "tfind test frame"
 103 }
 104
 105 # Test that "display VAR" works as expected, assuming VAR is wholly
 106 # unavailable.
 107
 108 proc test_maybe_regvar_display { var } {
 109     global gdb_prompt
 110
 111     # Evaluating VAR's location description may throw an internal
 112     # "unavailable" exception, if for example, the value of a register
 113     # necessary for computing VAR's location is unavailable.  Such an
 114     # exception is caught, and should not cause automatic disablement
 115     # of the current display being printed.  (GDB used to disable the
 116     # current display whenever any exception was thrown.)
 117     set test "display $var"
 118     gdb_test_multiple "$test" "$test" {
 119         -re "Disabling display ? to avoid infinite recursion.*$gdb_prompt $" {
 120             fail "$test"
 121         }
 122         -re "display ${var}\r\n1: ${var} = <unavailable>\r\n$gdb_prompt $" {
 123             pass "$test"
 124         }
 125     }
 126     gdb_test "info display" ".*1:\[ \t\]+y\[ \t\]+${var}" "display ${var} is enabled"
 127
 128     gdb_test "undisp" \
 129         "" \
 130         "delete $var display" \
 131         ".*Delete all auto-display expressions.*y or n. $" \
 132         "y"
 133 }
 134
 135 #
 136 # Test procs
 137 #
 138
 139 proc gdb_collect_args_test {} {
 140     global cr
 141     global gdb_prompt
 142     global pf_prefix
 143
 144     set old_pf_prefix $pf_prefix
 145     set pf_prefix "$pf_prefix unavailable arguments:"
 146
 147     prepare_for_trace_test
 148
 149     gdb_test "trace args_test_func" \
 150         "Tracepoint \[0-9\]+ at .*" \
 151         "set tracepoint"
 152
 153     # Begin the test.
 154     run_trace_experiment args_test_func
 155
 156     # Test printing the variables, and also their addresses.  We
 157     # haven't collected any stack, so there's no way GDB can figure
 158     # out the latter.
 159
 160     gdb_test "print argc" " = <unavailable>"
 161     gdb_test "print &argc" \
 162         "Can't take address of \"argc\" which isn't an lvalue\."
 163
 164     gdb_test "print argi" " = <unavailable>"
 165     gdb_test "print &argi" \
 166         "Can't take address of \"argi\" which isn't an lvalue\."
 167
 168     gdb_test "print argf" " = <unavailable>"
 169     gdb_test "print &argf" \
 170         "Can't take address of \"argf\" which isn't an lvalue\."
 171
 172     gdb_test "print argd" " = <unavailable>"
 173     gdb_test "print &argd" \
 174         "Can't take address of \"argd\" which isn't an lvalue\."
 175
 176     # struct arg as one of several args (near end of list)
 177
 178     gdb_test "print argstruct" \
 179         " = \{memberc = <unavailable>, memberi = <unavailable>, memberf = <unavailable>, memberd = <unavailable>\}"
 180
 181     gdb_test "print argstruct.memberc" " = <unavailable>"
 182     gdb_test "print argstruct.memberi" " = <unavailable>"
 183     gdb_test "print argstruct.memberf" " = <unavailable>"
 184     gdb_test "print argstruct.memberd" " = <unavailable>"
 185
 186     gdb_test "print argarray" " = \\(int \\*\\) <unavailable>"
 187
 188     gdb_test "print &argarray" \
 189         "Can't take address of \"argarray\" which isn't an lvalue\."
 190
 191     gdb_test "print argarray\[0\]" "value is not available"
 192
 193     # Test "info args"
 194     set r ""
 195     set r "${r}argc = <unavailable>${cr}"
 196     set r "${r}argi = <unavailable>${cr}"
 197     set r "${r}argf = <unavailable>${cr}"
 198     set r "${r}argd = <unavailable>${cr}"
 199     set r "${r}argstruct = {memberc = <unavailable>, memberi = <unavailable>, memberf = <unavailable>, memberd = <unavailable>}${cr}"
 200     set r "${r}argarray = <unavailable>${cr}"
 201     gdb_test "info args" "$r" "info args"
 202
 203     test_maybe_regvar_display "argc"
 204
 205     gdb_test "tfind none" \
 206         "#0  end .*" \
 207         "cease trace debugging"
 208
 209     set pf_prefix $old_pf_prefix
 210 }
 211
 212 proc gdb_collect_locals_test { func msg } {
 213     global cr
 214     global gdb_prompt
 215     global pf_prefix
 216
 217     set old_pf_prefix $pf_prefix
 218     set pf_prefix "$pf_prefix unavailable locals: $msg:"
 219
 220     prepare_for_trace_test
 221
 222     set testline [gdb_get_line_number "set $func tracepoint here"]
 223
 224     gdb_test "trace $testline" \
 225             "Tracepoint \[0-9\]+ at .*" \
 226             "set tracepoint"
 227
 228     # Begin the test.
 229     run_trace_experiment $func
 230
 231     gdb_test "print locc" " = <unavailable>"
 232     gdb_test "print loci" " = <unavailable>"
 233     gdb_test "print locf" " = <unavailable>"
 234     gdb_test "print locd" " = <unavailable>"
 235
 236     gdb_test "print locst.memberc" " = <unavailable>"
 237     gdb_test "print locst.memberi" " = <unavailable>"
 238     gdb_test "print locst.memberf" " = <unavailable>"
 239     gdb_test "print locst.memberd" " = <unavailable>"
 240
 241     gdb_test "print locar\[0\]" " = <unavailable>"
 242     gdb_test "print locar\[1\]" " = <unavailable>"
 243     gdb_test "print locar\[2\]" " = <unavailable>"
 244     gdb_test "print locar\[3\]" " = <unavailable>"
 245
 246     # Test "info locals"
 247     set r ""
 248     set r "${r}locf = <unavailable>${cr}"
 249     set r "${r}locd = <unavailable>${cr}"
 250     set r "${r}locst = {memberc = <unavailable>, memberi = <unavailable>, memberf = <unavailable>, memberd = <unavailable>}${cr}"
 251     set r "${r}locar = {<unavailable>, <unavailable>, <unavailable>, <unavailable>}${cr}"
 252     set r "${r}i = <unavailable>${cr}"
 253     if { $func == "local_test_func" } {
 254         set r "${r}locdefst = {<No data fields>}${cr}"
 255     }
 256     set r "${r}locc = <unavailable>${cr}"
 257     set r "${r}loci = <unavailable>${cr}"
 258     gdb_test "info locals" "$r" "info locals"
 259
 260     test_maybe_regvar_display "loci"
 261
 262     gdb_test "tfind none" \
 263         "#0  end .*" \
 264         "cease trace debugging"
 265
 266     set pf_prefix $old_pf_prefix
 267 }
 268
 269 proc gdb_unavailable_registers_test { } {
 270     global gdb_prompt
 271     global spreg
 272     global pcreg
 273     global pf_prefix
 274
 275     set old_pf_prefix $pf_prefix
 276     set pf_prefix "$pf_prefix unavailable registers:"
 277
 278     prepare_for_trace_test
 279
 280     # We'll simply re-use the globals_test_function for this test
 281     gdb_test "trace globals_test_func" \
 282             "Tracepoint \[0-9\]+ at .*" \
 283             "set tracepoint"
 284
 285     # Collect nothing.
 286
 287     # Begin the test.
 288     run_trace_experiment globals_test_func
 289
 290     # On some archs, the $sp/$pc are a real raw registers.  On others,
 291     # like x86, they're user registers.  Test both variants.
 292     test_register_unavailable "\$$spreg"
 293     test_register_unavailable "\$sp"
 294
 295     # Test reading uncollected pseudo-registers.  The set of which
 296     # depends on target.
 297     if [is_amd64_regs_target] {
 298         # Check the raw register first.
 299         test_register_unavailable "\$rax"
 300         test_register_unavailable "\$eax"
 301         test_register_unavailable "\$ax"
 302     } elseif [is_x86_like_target] {
 303         # Check the raw register first.
 304         test_register_unavailable "\$eax"
 305         test_register_unavailable "\$ax"
 306     }
 307
 308     # GDBserver always provides the PC value of regular tracepoint
 309     # hits, since it's the same as the tracepoint's address.
 310     test_register "\$$pcreg"
 311     test_register "\$pc"
 312
 313     gdb_test "info registers" \
 314         "\\*value not available\\*.*\\*value not available\\*" \
 315         "info registers, multiple registers not available"
 316
 317     gdb_test "info registers \$$spreg" \
 318         "\\*value not available\\*" \
 319         "info registers \$$spreg reports not available"
 320
 321     gdb_test "tfind none" "#0  end .*" "cease trace debugging"
 322
 323     set pf_prefix $old_pf_prefix
 324 }
 325
 326 proc gdb_collect_globals_test { } {
 327     global ws
 328     global cr
 329     global gdb_prompt
 330     global hex
 331     global pf_prefix
 332
 333     set old_pf_prefix $pf_prefix
 334     set pf_prefix "$pf_prefix collect globals:"
 335
 336     prepare_for_trace_test
 337
 338     set testline [gdb_get_line_number "set globals_test_func tracepoint here"]
 339
 340     gdb_test "trace $testline" \
 341             "Tracepoint \[0-9\]+ at .*" \
 342             "set tracepoint"
 343
 344     # We collect the initial sizeof(pointer) bytes of derived_partial
 345     # in an attempt of collecting the vptr.  Not portable, but should
 346     # work everywhere we need to care.
 347     gdb_trace_setactions "define actions" \
 348         "" \
 349         "collect struct_b.struct_a.array\[2\]" "^$" \
 350         "collect struct_b.struct_a.array\[100\]" "^$" \
 351         \
 352         "collect a" "^$" \
 353         "collect c" "^$" \
 354         \
 355         "collect tarray\[0\].a" "^$" \
 356         "collect tarray\[1\].a" "^$" \
 357         "collect tarray\[3\].a" "^$" \
 358         "collect tarray\[3\].b" "^$" \
 359         "collect tarray\[4\].b" "^$" \
 360         "collect tarray\[5\].b" "^$" \
 361         \
 362         "collect g_string_p" "^$" \
 363         "collect g_string_partial\[1\]" "^$" \
 364         "collect g_string_partial\[2\]" "^$" \
 365         \
 366         "collect g_structref_p" "^$" \
 367         \
 368         "collect *((char *)&derived_partial)@sizeof\(void *\)" "^$" \
 369         "collect derived_whole" "^$" \
 370         \
 371         "collect virtual_partial.z" "^$"
 372
 373     # Begin the test.
 374     run_trace_experiment globals_test_func
 375
 376     gdb_test "print globalc" " = <unavailable>"
 377     gdb_test "print globali" " = <unavailable>"
 378     gdb_test "print globalf" " = <unavailable>"
 379     gdb_test "print globald" " = <unavailable>"
 380
 381     gdb_test "print globalstruct.memberc" " = <unavailable>"
 382     gdb_test "print globalstruct.memberi" " = <unavailable>"
 383     gdb_test "print globalstruct.memberf" " = <unavailable>"
 384     gdb_test "print globalstruct.memberd" " = <unavailable>"
 385
 386     gdb_test "print globalstruct" \
 387             " = {memberc = <unavailable>, memberi = <unavailable>, memberf = <unavailable>, memberd = <unavailable>}"
 388
 389     gdb_test "print globalp == &globalstruct" \
 390             "value is not available" \
 391             "can't compare using non collected global pointer"
 392
 393     gdb_test "print globalarr\[1\]" " = <unavailable>"
 394     gdb_test "print globalarr\[2\]" " = <unavailable>"
 395     gdb_test "print globalarr\[3\]" " = <unavailable>"
 396
 397     gdb_test "print struct_b" \
 398         " = {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>}"
 399
 400     gdb_test "print /x struct_b" \
 401         " = {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>}"
 402
 403     gdb_test "print /x struct_b.struct_a" \
 404         " = {a = <unavailable>, b = <unavailable>, array = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}, ptr = <unavailable>, bitfield = <unavailable>}"
 405
 406     gdb_test "print /x struct_b.struct_a.array" \
 407         " = {<unavailable>, <unavailable>, 0xaaaaaaaa, <unavailable> <repeats 97 times>, 0xaaaaaaaa, <unavailable> <repeats 9899 times>}"
 408
 409     gdb_test "print /x struct_b.struct_a.array\[0\]" " = <unavailable>"
 410
 411     gdb_test "print /x struct_b.struct_a.array\[2\]" " = 0xaaaaaaaa"
 412
 413     # Check the target doesn't overcollect.  GDB used to merge memory
 414     # ranges to collect if they were close enough (collecting the hole
 415     # as well), but does not do that anymore.  It's plausible that a
 416     # target may do this on its end, but as of this writing, no known
 417     # target does it.
 418     gdb_test "print {a, b, c}" \
 419         " = \\{1, <unavailable>, 3\\}" \
 420         "No overcollect of almost but not quite adjacent memory ranges"
 421
 422     # Check <unavailable> isn't confused with 0 in array element repetitions
 423
 424     gdb_test_no_output "set print repeat 1"
 425
 426     gdb_test "print /x tarray" \
 427         " = \{\{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>\}" \
 428         "<unavailable> is not the same as 0 in array element repetitions"
 429
 430     gdb_test_no_output "set print repeat 10"
 431
 432     # Check that value repeat handles unavailable-ness.
 433     gdb_test "print *tarray@3" " = \\{\\{a = 0, b = <unavailable>\\}, \\{a = 0, b = <unavailable>\\}, \\{a = <unavailable>, b = <unavailable>\\}\\}"
 434
 435     # Static fields
 436
 437     gdb_test "print struct_b.static_struct_a" \
 438         " = {a = <unavailable>, b = <unavailable>, array = {<unavailable> <repeats 10000 times>}, ptr = <unavailable>, bitfield = <unavailable>}"
 439
 440     # Bitfields
 441
 442     gdb_test "print struct_b.struct_a.bitfield" " = <unavailable>"
 443
 444     # References
 445
 446     gdb_test "print g_int" " = <unavailable>"
 447
 448     gdb_test "print g_ref" \
 449         "\\(int &\\) @$hex: <unavailable>" \
 450         "global reference shows address but not value"
 451
 452     gdb_test "print *&g_ref" \
 453         "\\$\[0-9\]+ = <unavailable>$cr" \
 454         "referenced integer was not collected (taking address of reference)"
 455
 456     gdb_test "print *g_structref_p" \
 457         " = {d = <unavailable>, ref = <unavailable>}"
 458
 459     # Strings
 460
 461     # Const string is always available, even when not collected.
 462     gdb_test "print g_const_string" \
 463         " = \"hello world\"$cr" \
 464         "non collected const string is still printable"
 465
 466     gdb_test "print g_string_p" \
 467         " = $hex \"hello world\"" \
 468         "printing constant string through collected pointer"
 469
 470     gdb_test "print g_string_unavail" \
 471         " = \{<unavailable> <repeats 12 times>\}" \
 472         "printing non collected string"
 473
 474     # Incomplete strings print as an array.
 475     gdb_test "print g_string_partial" \
 476         "\\$\[0-9\]+ = \{<unavailable>, 101 'e', 108 'l', <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>, <unavailable>\}" \
 477         "printing partially collected string"
 478
 479     # It is important for this test that the last examined value is
 480     # <unavailable>, to exercise the case of the $__ convenience
 481     # variable being set to <unavailable> without error.
 482     set msg "examining partially collected object"
 483     gdb_test_multiple "x /10x &struct_b" "$msg" {
 484         -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 $" {
 485             pass "$msg"
 486         }
 487         -re "value is not available" {
 488             fail "$msg"
 489         }
 490     }
 491
 492     gdb_test "p \$__" " = <unavailable>" "last examined value was <unavailable>"
 493
 494     # This tests that building the array does not require accessing
 495     # g_int's contents.
 496     gdb_test "print { 1, g_int, 3 }" \
 497         " = \\{1, <unavailable>, 3\\}" \
 498         "build array from unavailable value"
 499
 500     # Note, depends on previous test.
 501     gdb_test "print \$\[1\]" \
 502         " = <unavailable>" \
 503         "subscript a non-memory rvalue array, accessing an unvailable element"
 504
 505     # Access a field of a non-lazy value, making sure the
 506     # unavailable-ness is propagated.  History values are easy
 507     # non-lazy values, so use those.  The first test just sets up for
 508     # the second.
 509     gdb_test "print g_smallstruct" " = \\{member = <unavailable>\\}"
 510     gdb_test "print \$.member" " = <unavailable>"
 511
 512     # Cast to baseclass, checking the unavailable-ness is propagated.
 513     gdb_test "print (small_struct) g_smallstruct_b" " = \\{member = <unavailable>\\}"
 514
 515     # Same cast, but starting from a non-lazy, value.
 516     gdb_test "print g_smallstruct_b" " = \\{<small_struct> = \\{member = <unavailable>\\}, <No data fields>\\}"
 517     gdb_test "print (small_struct) \$" " = \\{member = <unavailable>\\}"
 518
 519     gdb_test_no_output "set print object on"
 520
 521     set old_pf_prefix_2 $pf_prefix
 522     set pf_prefix "$pf_prefix print object on:"
 523
 524     # With print object on, printing a pointer may need to fetch the
 525     # pointed-to object, to check its run-time type.  Make sure that
 526     # fails gracefully and transparently when the pointer itself is
 527     # unavailable.
 528     gdb_test "print virtualp" " = \\(Virtual \\*\\) <unavailable>"
 529
 530     # no vtable pointer available
 531     gdb_test "print derived_unavail" \
 532         " = {<Middle> = <unavailable>, _vptr.Derived = <unavailable>, z = <unavailable>}"
 533
 534     # vtable pointer available, but nothing else
 535     gdb_test "print derived_partial" \
 536         " = \\(Derived\\) {<Middle> = {<Base> = <unavailable>, _vptr.Middle = <unavailable>, y = <unavailable>}, _vptr.Derived = $hex, z = <unavailable>}"
 537
 538     # whole object available
 539     gdb_test "print derived_whole" \
 540         " = \\(Derived\\) {<Middle> = {<Base> = {x = 2}, _vptr.Middle = $hex, y = 3}, _vptr.Derived = $hex, z = 4}"
 541
 542     set pf_prefix $old_pf_prefix_2
 543
 544     gdb_test_no_output "set print object off"
 545
 546     set pf_prefix "$pf_prefix print object off:"
 547
 548     gdb_test "print virtualp" " = \\(Virtual \\*\\) <unavailable>"
 549
 550     # no vtable pointer available
 551     gdb_test "print derived_unavail" \
 552         " = {<Middle> = <unavailable>, _vptr.Derived = <unavailable>, z = <unavailable>}"
 553
 554     # vtable pointer available, but nothing else
 555     gdb_test "print derived_partial" \
 556         " = {<Middle> = {<Base> = <unavailable>, _vptr.Middle = <unavailable>, y = <unavailable>}, _vptr.Derived = $hex, z = <unavailable>}"
 557
 558     # whole object available
 559     gdb_test "print derived_whole" \
 560         " = {<Middle> = {<Base> = {x = 2}, _vptr.Middle = $hex, y = 3}, _vptr.Derived = $hex, z = 4}"
 561
 562     set pf_prefix $old_pf_prefix_2
 563
 564     # An instance of a virtual class where we collected everything but
 565     # the vptr.
 566     gdb_test "print virtual_partial" \
 567         " = {_vptr.Virtual = <unavailable>, z = 0}"
 568
 569     gdb_test "tfind none" \
 570         "#0  end .*" \
 571         "cease trace debugging"
 572
 573     set pf_prefix $old_pf_prefix
 574 }
 575
 576 proc gdb_trace_collection_test {} {
 577     gdb_collect_globals_test
 578     gdb_unavailable_registers_test
 579
 580     gdb_collect_args_test
 581     gdb_collect_locals_test local_test_func "auto locals"
 582     gdb_collect_locals_test reglocal_test_func "register locals"
 583     gdb_collect_locals_test statlocal_test_func "static locals"
 584 }
 585
 586 clean_restart $executable
 587 runto_main
 588
 589 # We generously give ourselves one "pass" if we successfully
 590 # detect that this test cannot be run on this target!
 591 if { ![gdb_target_supports_trace] } then {
 592     pass "Current target does not support trace"
 593     return 1;
 594 }
 595
 596 # Body of test encased in a proc so we can return prematurely.
 597 gdb_trace_collection_test
 598
 599 # Finished!
 600 gdb_test "tfind none" ".*" ""