gdb/testsuite/gdb.base/break-interp.exp

   1 # Copyright 2010-2012 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 # This test only works on GNU/Linux.
  17 if { ![isnative] || [is_remote host] || [target_info exists use_gdb_stub]
  18      || ![istarget *-linux*] || [skip_shlib_tests]} {
  19     continue
  20 }
  21
  22 load_lib prelink-support.exp
  23
  24 set test "break-interp"
  25 set binprefix ${objdir}/${subdir}/${test}
  26 # Only to get the $interp_system name.
  27 set srcfile_test "start.c"
  28 set binfile_test ${test}-test
  29 set binfile_lib ${objdir}/${subdir}/${test}.so
  30 set srcfile "${test}-main.c"
  31 set srcfile_lib "${test}-lib.c"
  32
  33 if [get_compiler_info] {
  34     return -1
  35 }
  36
  37 # Use -soname so that the new library gets copied by build_executable_own_libs.
  38
  39 if {[gdb_compile_shlib ${srcdir}/${subdir}/${srcfile_lib} ${binfile_lib} [list debug ldflags=-Wl,-soname,${test}.so]] != ""} {
  40     return -1
  41 }
  42
  43 if {[build_executable ${test}.exp $binfile_test ${srcfile_test} {}] == -1} {
  44     return -1
  45 }
  46
  47 # Note: The separate debug info file content build-id/crc32 are not verified
  48 # contrary to the GDB search algorithm skipping non-matching ones.
  49 proc system_debug_get {exec} {
  50     global debug_root
  51
  52     set exec_build_id_debug [build_id_debug_filename_get $exec]
  53     set debug_base "[file tail $exec].debug"
  54     set exec_dir [file dirname $exec]
  55
  56     # isfile returns 1 even for symlinks to files.
  57     set retval $debug_root/$exec_build_id_debug
  58     if [file isfile $retval] {
  59         return $retval
  60     }
  61     set retval $exec_dir/$debug_base
  62     if [file isfile $retval] {
  63         return $retval
  64     }
  65     set retval $exec_dir/.debug/$debug_base
  66     if [file isfile $retval] {
  67         return $retval
  68     }
  69     set retval $debug_root/$exec_dir/$debug_base
  70     if [file isfile $retval] {
  71         return $retval
  72     }
  73     return ""
  74 }
  75
  76 gdb_exit
  77 gdb_start
  78 set debug_root ""
  79 set test "show debug-file-directory"
  80 gdb_test_multiple $test $test {
  81     -re "The directory where separate debug symbols are searched for is \"(.*)\".\r\n$gdb_prompt $" {
  82         set debug_root $expect_out(1,string)
  83     }
  84 }
  85
  86 set interp_system [section_get ${objdir}/${subdir}/$binfile_test .interp]
  87 set interp_system_debug [system_debug_get $interp_system]
  88 verbose -log "$interp_system has debug $interp_system_debug"
  89
  90 proc prelinkNO {arg {name ""}} {
  91     return [prelink_no $arg $name]
  92 }
  93
  94 proc prelinkYES {arg {name ""}} {
  95     return [prelink_yes $arg $name]
  96 }
  97
  98 proc strip_debug {dest} {
  99     set test "strip [file tail $dest]"
 100     set strip_program [transform strip]
 101     set command "exec $strip_program --strip-debug $dest"
 102     verbose -log "command is $command"
 103     if [catch $command] {
 104         fail $test
 105         return 0
 106     } else {
 107         pass $test
 108         return 1
 109     }
 110 }
 111
 112 # Implementation of reach.
 113
 114 proc reach_1 {func command displacement} {
 115     global gdb_prompt expect_out
 116
 117     if {$func == "_dl_debug_state"} {
 118         # Breakpoint on _dl_debug_state can have problems due to its overlap
 119         # with the existing internal breakpoint from GDB.
 120         gdb_test_no_output "set stop-on-solib-events 1"
 121     } elseif {! [gdb_breakpoint $func allow-pending]} {
 122         return
 123     }
 124
 125     set test "reach"
 126     set test_displacement "seen displacement message as $displacement"
 127     set debug_state_count 0
 128     gdb_test_multiple $command $test {
 129         -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
 130             # Missing "$gdb_prompt $" is intentional.
 131             if {$expect_out(1,string) == "0x0"} {
 132                 set case "ZERO"
 133             } else {
 134                 set case "NONZERO"
 135             }
 136             if {$displacement == $case || $displacement == "PRESENT"} {
 137                 pass $test_displacement
 138                 set displacement "FOUND-$displacement"
 139             } else {
 140                 fail $test_displacement
 141             }
 142             exp_continue
 143         }
 144         -re "Breakpoint \[0-9\]+, \\.?(__GI_)?$func \\(.*\\) at .*:\[0-9\]+\r\n.*$gdb_prompt $" {
 145             if {$func == "_dl_debug_state"} {
 146                 fail $test
 147             } else {
 148                 pass $test
 149             }
 150         }
 151         -re "Breakpoint \[0-9\]+, \[0-9xa-f\]+ in \\.?(__GI_)?$func \\(\\).*\r\n$gdb_prompt $" {
 152             if {$func == "_dl_debug_state"} {
 153                 fail $test
 154             } else {
 155                 pass $test
 156             }
 157         }
 158         -re "Stopped due to (spurious )?shared library event.*\r\n$gdb_prompt $" {
 159             if {$func == "_dl_debug_state"} {
 160                 if {$debug_state_count == 0} {
 161                     # First stop does not yet relocate the _start function
 162                     # descriptor on ppc64.
 163                     set debug_state_count 1
 164                     send_gdb "continue\n"
 165                     exp_continue
 166                 } else {
 167                     pass $test
 168                 }
 169             } else {
 170                 fail $test
 171             }
 172         }
 173     }
 174     if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
 175         fail $test_displacement
 176     }
 177
 178     if {$func == "_dl_debug_state"} {
 179         gdb_test_no_output "set stop-on-solib-events 0"
 180     }
 181 }
 182
 183 # `runto' does not check we stopped really at the function we specified.
 184 # DISPLACEMENT can be "NONE" for no message to be present, "ZERO" for
 185 # displacement of 0 bytes to be present, "NONZERO" for displacement of non-0
 186 # bytes to be present and "PRESENT" if both "ZERO" and "NONZERO" are valid.
 187 proc reach {func command displacement} {
 188     with_test_prefix "reach-$func" {
 189         reach_1 $func $command $displacement
 190     }
 191 }
 192
 193 proc test_core {file displacement} { with_test_prefix "core" {
 194     global srcdir subdir gdb_prompt expect_out
 195
 196     set corefile [core_find $file {} "segv"]
 197     if {$corefile == ""} {
 198         return
 199     }
 200
 201     gdb_exit
 202     gdb_start
 203     # Clear it to never find any separate debug infos in $debug_root.
 204     gdb_test_no_output "set debug-file-directory" \
 205         "set debug-file-directory for core"
 206     gdb_reinitialize_dir $srcdir/$subdir
 207     gdb_load $file
 208
 209     # Print the "PIE (Position Independent Executable) displacement" message.
 210     gdb_test_no_output "set verbose on"
 211
 212     set test "core loaded"
 213     set test_displacement "seen displacement message as $displacement"
 214     gdb_test_multiple "core-file $corefile" $test {
 215         -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
 216             # Missing "$gdb_prompt $" is intentional.
 217             if {$expect_out(1,string) == "0x0"} {
 218                 set case "ZERO"
 219             } else {
 220                 set case "NONZERO"
 221             }
 222             if {$displacement == $case || $displacement == "PRESENT"} {
 223                 pass $test_displacement
 224                 set displacement "FOUND-$displacement"
 225             } else {
 226                 fail $test_displacement
 227             }
 228             exp_continue
 229         }
 230         -re "Core was generated by .*\r\n#0 .*$gdb_prompt $" {
 231             # Do not check the binary filename as it may be truncated.
 232             pass $test
 233         }
 234     }
 235     if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
 236         fail $test_displacement
 237     }
 238
 239     gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "core main bt"
 240 }}
 241
 242 proc test_attach_gdb {file pid displacement prefix} { with_test_prefix "$prefix" {
 243     global gdb_prompt expect_out
 244
 245     gdb_exit
 246     gdb_start
 247
 248     # Print the "PIE (Position Independent Executable) displacement" message.
 249     gdb_test_no_output "set verbose on"
 250
 251     gdb_test "file $file" "Reading symbols from .*done\\." "file"
 252
 253     set test "attach"
 254     gdb_test_multiple "attach $pid" $test {
 255         -re "Attaching to (program: .*, )?process $pid\r\n" {
 256             # Missing "$gdb_prompt $" is intentional.
 257             pass $test
 258         }
 259     }
 260
 261     set test "attach final prompt"
 262     set test_displacement "seen displacement message as $displacement"
 263     gdb_test_multiple "" $test {
 264         -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
 265             # Missing "$gdb_prompt $" is intentional.
 266             if {$expect_out(1,string) == "0x0"} {
 267                 set case "ZERO"
 268             } else {
 269                 set case "NONZERO"
 270             }
 271             if {$displacement == $case || $displacement == "PRESENT"} {
 272                 pass $test_displacement
 273                 set displacement "FOUND-$displacement"
 274             } else {
 275                 fail $test_displacement
 276             }
 277             exp_continue
 278         }
 279         -re "$gdb_prompt $" {
 280             pass $test
 281         }
 282     }
 283     if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
 284         fail $test_displacement
 285     }
 286
 287     gdb_test "bt" "#\[0-9\]+ +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#\[0-9\]+ +\[^\r\n\]*\\mmain\\M.*" "attach main bt"
 288     gdb_exit
 289 }}
 290
 291 proc test_attach {file displacement {relink_args ""}} {
 292     global board_info
 293     global exec
 294
 295     gdb_exit
 296
 297     set test "sleep function started"
 298
 299     set command "${file} sleep"
 300     set res [remote_spawn host $command];
 301     if { $res < 0 || $res == "" } {
 302         perror "Spawning $command failed."
 303         fail $test
 304         return
 305     }
 306     set pid [exp_pid -i $res]
 307     gdb_expect {
 308         -re "sleeping\r\n" {
 309             pass $test
 310         }
 311         eof {
 312             fail "$test (eof)"
 313             return
 314         }
 315         timeout {
 316             fail "$test (timeout)"
 317             return
 318         }
 319     }
 320
 321     if {$relink_args == ""} {
 322         test_attach_gdb $exec $pid $displacement "attach"
 323     } else {
 324         # These could be rather passed as arguments.
 325         global interp_saved interp
 326
 327         foreach relink {YES NO} {
 328             # Formerly this test was testing only prelinking of $EXEC.  As the
 329             # prelink command automatically prelinks all of $EXEC's libraries,
 330             # even $INTERP got prelinked.  Therefore, we formerly had to
 331             # `[file_copy $interp_saved $interp]' to make $INTERP not affected
 332             # by this prelinking of $EXEC.
 333             #
 334             # But now we need to test even prelinking of $INTERP.  We could
 335             # create a separate test to test just the $INTERP prelinking.  For
 336             # test simplicity, we merged this test and the test above by not
 337             # restoring $INTERP after $EXEC prelink.  $INTERP gets restored
 338             # later below.
 339             #
 340             # `(wrong library or version mismatch?)' messages are printed for
 341             # $binfile_lib on platforms converting REL->RELA relocations by
 342             # prelink (such as on i386).  There is no reliable way to verify
 343             # the library file matches the running library in such case but
 344             # GDB at least attempts to set the right displacement.  We test
 345             # `libfunc' is present in the backtrace and therefore the
 346             # displacement has been guessed right.
 347
 348             if [prelink$relink $relink_args [file tail $exec]] {
 349                 # /proc/PID/exe cannot be loaded as it is "EXECNAME (deleted)".
 350                 test_attach_gdb $exec $pid $displacement "attach-relink$relink"
 351             }
 352         }
 353         file_copy $interp_saved $interp
 354     }
 355
 356     remote_exec host "kill -9 $pid"
 357 }
 358
 359 proc test_ld {file ifmain trynosym displacement} {
 360     global srcdir subdir gdb_prompt expect_out inferior_exited_re
 361
 362     # First test normal `file'-command loaded $FILE with symbols.
 363
 364     gdb_exit
 365     gdb_start
 366     # Clear it to never find any separate debug infos in $debug_root.
 367     gdb_test_no_output "set debug-file-directory"
 368     gdb_reinitialize_dir $srcdir/$subdir
 369     gdb_load $file
 370
 371     # Print the "PIE (Position Independent Executable) displacement" message.
 372     gdb_test_no_output "set verbose on"
 373
 374     # We want to test the re-run of a PIE in the case where the executable
 375     # is loaded with a different displacement, but disable-randomization
 376     # prevents that from happening.  So turn it off.
 377     gdb_test "set disable-randomization off"
 378
 379     if $ifmain {
 380         gdb_test_no_output "set args segv"
 381     } else {
 382         global objdir binfile_test
 383
 384         # ld.so needs some executable to run to reach _dl_debug_state.
 385         gdb_test_no_output "set args ${objdir}/${subdir}/$binfile_test" "set args OBJDIR/${subdir}/$binfile_test"
 386     }
 387
 388     reach "_dl_debug_state" "run" $displacement
 389
 390     gdb_test "bt" "#0 +\[^\r\n\]*\\m(__GI_)?_dl_debug_state\\M.*" "dl bt"
 391
 392     if $ifmain {
 393         reach "main" continue "NONE"
 394
 395         reach "libfunc" continue "NONE"
 396
 397         gdb_test "bt" "#0 +\[^\r\n\]*\\mlibfunc\\M\[^\r\n\]*\r\n#1 +\[^\r\n\]*\\mmain\\M.*" "main bt"
 398     }
 399
 400     # Try re-run if the new PIE displacement takes effect.
 401     gdb_test "kill" "" "kill" {Kill the program being debugged\? \(y or n\) } "y"
 402     reach "_dl_debug_state" "run" $displacement
 403
 404     if $ifmain {
 405         test_core $file $displacement
 406
 407         test_attach $file $displacement
 408     }
 409
 410     if !$trynosym {
 411         return
 412     }
 413
 414     with_test_prefix "symbol-less" {
 415         # Test also `exec-file'-command loaded $FILE - therefore
 416         # without symbols.  SYMBOL_OBJFILE is not available and only
 417         # EXEC_BFD must be used.
 418
 419         gdb_exit
 420         gdb_start
 421         # Clear it to never find any separate debug infos in $debug_root.
 422         gdb_test_no_output "set debug-file-directory"
 423         gdb_reinitialize_dir $srcdir/$subdir
 424
 425         # Print the "PIE (Position Independent Executable)
 426         # displacement" message.
 427         gdb_test_no_output "set verbose on"
 428
 429         # Test no (error) message has been printed by `exec-file'.
 430         set escapedfile [string_to_regexp $file]
 431         gdb_test "exec-file $file" "exec-file $escapedfile" "load"
 432
 433         if $ifmain {
 434             reach "_dl_debug_state" run $displacement
 435
 436             # Use two separate gdb_test_multiple statements to avoid timeouts due
 437             # to slow processing of wildcard capturing long output
 438             set test "info files"
 439             set entrynohex ""
 440             gdb_test_multiple $test $test {
 441                 -re "\r\n\[\t \]*Entry point:\[\t \]*0x(\[0-9a-f\]+)\r\n" {
 442                     set entrynohex $expect_out(1,string)
 443                     gdb_test_multiple "" $test {
 444                         -re "\r\n$gdb_prompt $" {
 445                             pass $test
 446                         }
 447                     }
 448                 }
 449             }
 450
 451             # `info sym' cannot be tested for .opd as the binary may not have
 452             # symbols.
 453             if {[istarget powerpc64-*] && [is_lp64_target]} {
 454                 set test "convert entry point"
 455                 gdb_test_multiple "p *(void(*)(void) *) 0x$entrynohex" $test {
 456                     -re " =( \\(\[^0-9\]*\\))? 0x(\[0-9a-f\]+)( < \[^\r\n\]*)?\r\n$gdb_prompt $" {
 457                         set entrynohex $expect_out(2,string)
 458                         pass $test
 459                     }
 460                 }
 461             }
 462             if {$entrynohex != ""} {
 463                 gdb_test "break *0x$entrynohex" "" "break at entry point"
 464                 gdb_test "continue" "\r\nBreakpoint \[0-9\]+, 0x0*$entrynohex in .*" "entry point reached"
 465             }
 466         } else {
 467             # There is no symbol to break at ld.so.  Moreover it can
 468             # exit with an error code.
 469
 470             set test "ld.so exit"
 471             set test_displacement "seen displacement message as $displacement"
 472             gdb_test_multiple "run" $test {
 473                 -re "Using PIE \\(Position Independent Executable\\) displacement (0x\[0-9a-f\]+) " {
 474                     # Missing "$gdb_prompt $" is intentional.
 475                     if {$expect_out(1,string) == "0x0"} {
 476                         set case "ZERO"
 477                     } else {
 478                         set case "NONZERO"
 479                     }
 480                     if {$displacement == $case || $displacement == "PRESENT"} {
 481                         pass $test_displacement
 482                         set displacement "FOUND-$displacement"
 483                     } else {
 484                         fail $test_displacement
 485                     }
 486                     exp_continue
 487                 }
 488                 -re "$inferior_exited_re (normally|with code \[0-9\]+).\r\n$gdb_prompt $" {
 489                     # Do not check the binary filename as it may be truncated.
 490                     pass $test
 491                 }
 492             }
 493             if ![regexp {^(NONE|FOUND-.*)$} $displacement] {
 494                 fail $test_displacement
 495             }
 496         }
 497     }
 498 }
 499
 500 # Create separate binaries for each testcase - to make the possible reported
 501 # problem reproducible after the whole test run finishes.
 502
 503 foreach ldprelink {NO YES} {
 504     foreach ldsepdebug {NO IN SEP} {
 505         # Skip running the ldsepdebug test if we do not have system separate
 506         # debug info available.
 507         if {$interp_system_debug == "" && $ldsepdebug == "SEP"} {
 508             continue
 509         }
 510
 511         set ldname "LDprelink${ldprelink}debug${ldsepdebug}"
 512         set interp $binprefix-$ldname
 513
 514         # prelink needs to always prelink all the dependencies to do any file
 515         # modifications of its files.  ld.so also needs all the dependencies to
 516         # be prelinked to omit the relocation process.  In-memory file offsets
 517         # are not dependent whether ld.so went the prelink way or through the
 518         # relocation process.
 519         #
 520         # For GDB we are not interested whether prelink succeeds as it is
 521         # transparent to GDB.  GDB is being tested for differences of file
 522         # offsets vs. in-memory offsets.  So we have to prelink even ld.so for
 523         # the BIN modification to happen but we need to restore the original
 524         # possibly unprelinked ld.so to test all the combinations for GDB.
 525         set interp_saved ${interp}-saved
 526
 527         with_test_prefix "$ldname" {
 528             if {$ldsepdebug == "NO"} {
 529                 file_copy $interp_system $interp
 530                 # Never call strip-debug before unprelink:
 531                 # prelink: ...: Section .note.gnu.build-id created after prelinking
 532                 if ![prelinkNO $interp] {
 533                     continue
 534                 }
 535                 strip_debug $interp
 536             } elseif {$ldsepdebug == "IN" && $interp_system_debug == ""} {
 537                 file_copy $interp_system $interp
 538             } elseif {$ldsepdebug == "IN" && $interp_system_debug != ""} {
 539             file_copy $interp_system $interp
 540                 file_copy $interp_system_debug "${interp}.debug"
 541                 # eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u
 542                 if {![prelinkNO $interp] || ![prelinkNO "${interp}.debug"]} {
 543                     continue
 544                 }
 545                 set test "eu-unstrip unprelinked:[file tail $interp_system] + [file tail $interp_system_debug] to [file tail $interp]"
 546                 set command "exec eu-unstrip -o $interp $interp ${interp}.debug"
 547                 verbose -log "command is $command"
 548                 if [catch $command] {
 549                     setup_xfail *-*-*
 550                     fail $test
 551                     continue
 552                 } else {
 553                     pass $test
 554                 }
 555             } elseif {$ldsepdebug == "SEP" && $interp_system_debug == ""} {
 556                 file_copy $interp_system $interp
 557                 # eu-unstrip: DWARF data in '...' not adjusted for prelinking bias; consider prelink -u
 558                 if ![prelinkNO $interp] {
 559                     continue
 560                 }
 561                 gdb_gnu_strip_debug $interp
 562             } elseif {$ldsepdebug == "SEP" && $interp_system_debug != ""} {
 563                 file_copy $interp_system $interp
 564                 file_copy $interp_system_debug "${interp}.debug"
 565             }
 566
 567             if {$ldsepdebug == "SEP"} {
 568                 if ![prelinkNO "${interp}.debug"] {
 569                     continue
 570                 }
 571             } else {
 572                 file delete "${interp}.debug"
 573             }
 574
 575             if ![prelink$ldprelink $interp] {
 576                 continue
 577             }
 578             if {$ldprelink == "NO"} {
 579                 set displacement "NONZERO"
 580             } else {
 581                 # x86* kernel loads prelinked PIE binary at its
 582                 # prelinked address but ppc* kernel loads it at a
 583                 # random address.  prelink normally skips PIE binaries
 584                 # during the system scan.
 585                 set displacement "PRESENT"
 586             }
 587             test_ld $interp 0 [expr {$ldsepdebug == "NO"}] $displacement
 588
 589             if ![file_copy $interp $interp_saved] {
 590                 continue
 591             }
 592
 593             foreach binprelink {NO YES} {
 594                 foreach binsepdebug {NO IN SEP} {
 595                     # "ATTACH" is like "YES" but it is modified during
 596                     # run.  It cannot be used for problem
 597                     # reproducibility after the testcase ends.
 598                     foreach binpie {NO YES ATTACH} {
 599                         # This combination is not possible, non-PIE (fixed address)
 600                         # binary cannot be prelinked to any (other) address.
 601                         if {$binprelink == "YES" && $binpie == "NO"} {
 602                             continue
 603                         }
 604
 605                         set binname "BINprelink${binprelink}debug${binsepdebug}pie${binpie}"
 606                         set exec $binprefix-$binname
 607
 608                         with_test_prefix "$binname" {
 609                             set opts "ldflags=-Wl,$binfile_lib,-rpath,[file dirname $binfile_lib]"
 610                             if {$binsepdebug != "NO"} {
 611                                 lappend opts {debug}
 612                             }
 613                             if {$binpie != "NO"} {
 614                                 lappend opts {additional_flags=-fPIE -pie}
 615                             }
 616
 617                             set dir ${exec}.d
 618                             set relink_args [build_executable_own_libs ${test}.exp [file tail $exec] $srcfile $opts $interp $dir]
 619                             if {$relink_args == ""} {
 620                                 continue;
 621                             }
 622
 623                             if {$binsepdebug == "SEP"} {
 624                                 gdb_gnu_strip_debug $exec
 625                             }
 626
 627                             if {$binpie == "NO"} {
 628                                 set displacement "NONE"
 629                             } elseif {$binprelink == "NO"} {
 630                                 set displacement "NONZERO"
 631                             } else {
 632                                 # x86* kernel loads prelinked PIE binary at its prelinked
 633                                 # address but ppc* kernel loads it at a random address.
 634                                 # prelink normally skips PIE binaries during the system scan.
 635                                 set displacement "PRESENT"
 636                             }
 637
 638                             if {[prelink$binprelink $relink_args [file tail $exec]]
 639                                 && [file_copy $interp_saved $interp]} {
 640                                 if {$binpie != "ATTACH"} {
 641                                     test_ld $exec 1 [expr {$binsepdebug == "NO"}] $displacement
 642                                 } else {
 643                                     # If the file has been randomly prelinked it must be
 644                                     # "NONZERO".  We could see "ZERO" only if it was unprelinked
 645                                     # and it is now running at the same address - which is 0 but
 646                                     # executable can never run at address 0.
 647
 648                                     set displacement "NONZERO"
 649                                     test_attach $exec $displacement $relink_args
 650
 651                                     # ATTACH means that executables and libraries have been
 652                                     # modified after they have been run.  They cannot be reused
 653                                     # for problem reproducibility after the testcase ends in
 654                                     # the ATTACH case.  Therefore they are rather deleted not
 655                                     # to confuse after the run finishes.
 656                                     set exec_debug [system_debug_get $exec]
 657                                     if {$exec_debug != ""} {
 658                                         # `file delete [glob "${exec_debug}*"]' does not work.
 659                                         foreach f [glob "${exec_debug}*"] {
 660                                             file delete $f
 661                                         }
 662                                     }
 663                                     file delete -force $dir
 664                                     # `file delete [glob "${exec}*"]' does not work.
 665                                     foreach f [glob "${exec}*"] {
 666                                         file delete $f
 667                                     }
 668                                 }
 669                             }
 670                         }
 671                     }
 672                 }
 673             }
 674
 675             file delete $interp_saved
 676         }
 677     }
 678 }