gdb/testsuite/gdb.base/maint.exp

   1 # Copyright 1998-2020 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 file was written by Elena Zannoni (ezannoni@cygnus.com)
  17
  18 # this file tests maintenance commands and help on those.
  19
  20 # source file used is break.c
  21
  22
  23 #maintenance check-psymtabs -- Check consistency of psymtabs vs symtabs
  24 #maintenance check-symtabs -- Check consistency of symtabs
  25 #maintenance expand-symtabs -- Expand symtabs matching a file regexp
  26 #maintenance set -- Set GDB internal variables used by the GDB maintainer
  27 #maintenance show -- Show GDB internal variables used by the GDB maintainer
  28 #maintenance dump-me -- Get fatal error; make debugger dump its core
  29 #maintenance print -- Maintenance command for printing GDB internal state
  30 #maintenance info -- Commands for showing internal info about the program being debugged
  31 #maintenance internal-error -- Give GDB an internal error.
  32 #
  33 #maintenance print dummy-frames -- Print the dummy frame stack
  34 #maintenance print statistics -- Print statistics about internal gdb state
  35 #maintenance print objfiles -- Print dump of current object file definitions
  36 #maintenance print psymbols -- Print dump of current partial symbol definitions
  37 #maintenance print msymbols -- Print dump of current minimal symbol definitions
  38 #maintenance print symbols -- Print dump of current symbol definitions
  39 #maintenance print type -- Print a type chain for a given symbol
  40 #maintenance print unwind -- Print unwind table entry at given address
  41 #
  42 #
  43 #maintenance info sections -- List the BFD sections of the exec and core files
  44 #maintenance info breakpoints -- Status of all breakpoints
  45 #
  46
  47
  48
  49 standard_testfile break.c break1.c
  50
  51 if {[prepare_for_testing "failed to prepare" $testfile \
  52          [list $srcfile $srcfile2] {debug nowarnings}]} {
  53     return -1
  54 }
  55
  56 # The commands we test here produce many lines of output; disable "press
  57 # <return> to continue" prompts.
  58 gdb_test_no_output "set height 0"
  59
  60 # Tests that require that no program is running
  61
  62 gdb_file_cmd ${binfile}
  63
  64 # Test for a regression where this command would internal-error if the
  65 # program wasn't running.  If there's a lot of registers then this
  66 # might overflow expect's buffers, so process the output line at a
  67 # time.
  68 set saw_registers 0
  69 set saw_headers 0
  70 set test "maint print registers"
  71 gdb_test_multiple $test $test {
  72     -re "\[^\r\n\]+Name\[^\r\n\]+Nr\[^\r\n\]+Rel\[^\r\n\]+Offset\[^\r\n\]+Size\[^\r\n\]+Type\[^\r\n\]+\r\n" {
  73         set saw_headers 1
  74         exp_continue
  75     }
  76     -re "^\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\[0-9\]+\[^\r\n\]+\r\n" {
  77         set saw_registers 1
  78         exp_continue
  79     }
  80     -re "^\\*\[0-9\]+\[^\r\n\]+\r\n" {
  81         exp_continue
  82     }
  83     -re "$gdb_prompt $" {
  84         gdb_assert { $saw_registers && $saw_headers } $test
  85     }
  86 }
  87
  88 # Test "mt expand-symtabs" here as it's easier to verify before we
  89 # run the program.
  90 gdb_test_no_output "mt set per on" "mt set per on for expand-symtabs"
  91 gdb_test_multiple "mt expand-symtabs $subdir/break\[.\]c$" \
  92     "mt expand-symtabs" {
  93         -re "#compunits: (1|2) \\(\[+\](0|1|2)\\),.*$gdb_prompt $" {
  94             # This should expand at most two primary symtabs.
  95             # "Normally" it will not expand any, because the symtab
  96             # holding "main" will already have been expanded, but if the
  97             # file is compiled with -fdebug-types-section then a second primary
  98             # symtab for break.c will be created for any types.
  99             pass "mt expand-symtabs"
 100         }
 101     }
 102 gdb_test "mt set per off" ".*" "mt set per off for expand-symtabs"
 103
 104 # Tests that can or should be done with a running program
 105
 106 gdb_load ${binfile}
 107
 108 if ![runto_main] then {
 109         perror "tests suppressed"
 110 }
 111
 112 # Check that 'maint info sections' output looks correct.  When
 113 # checking the lines for each section we reject section names starting
 114 # with a '*' character, the internal *COM*, *UND*, *ABS*, and *IND*
 115 # sections should not be displayed in this output.
 116 set test "check maint info sections output"
 117 gdb_test_multiple "maint info sections" $test {
 118     -re "Exec file:\r\n\[\t ]+`\[^'\]+', file type \[^.\]+\.\r\n" {
 119         exp_continue
 120     }
 121     -re "^ \\\[\[0-9\]+\\\]\[\t \]+$hex->$hex at $hex: \[^*\r\]+\r\n" {
 122         exp_continue
 123     }
 124     -re "^$gdb_prompt $" {
 125         pass $test
 126     }
 127 }
 128
 129 # If we're using .gdb_index or .debug_names there will be no psymtabs.
 130 set have_gdb_index [ exec_has_index_section ${binfile} ]
 131
 132 # There also won't be any psymtabs if we read the index from the index cache.
 133 # We can detect this by looking if the index-cache is enabled and if the number
 134 # of cache misses is 0.
 135 set index_cache_misses -1
 136 gdb_test_multiple "show index-cache stats" "check index cache stats" {
 137     -re ".*Cache misses \\(this session\\): (\\d+)\r\n.*$gdb_prompt $" {
 138         set index_cache_misses $expect_out(1,string)
 139     }
 140 }
 141
 142 set using_index_cache 0
 143 gdb_test_multiple "show index-cache" "check index cache status" {
 144     -re ".*is currently disabled.\r\n$gdb_prompt $" {
 145         set using_index_cache 0
 146     }
 147     -re ".*is currently enabled.\r\n$gdb_prompt $" {
 148         set using_index_cache 1
 149     }
 150 }
 151
 152 if { $index_cache_misses == 0 && $using_index_cache } {
 153     set have_gdb_index 1
 154 }
 155
 156 #
 157 # this command does not produce any output
 158 # unless there is some problem with the symtabs and psymtabs
 159 # so that branch will really never be covered in this tests here!!
 160 #
 161
 162 # guo: on linux this command output is huge.  for some reason splitting up
 163 # the regexp checks works.
 164 #
 165 send_gdb "maint check-psymtabs\n"
 166 gdb_expect  {
 167     -re "^maint check-psymtabs" {
 168         gdb_expect {
 169             -re "$gdb_prompt $" {
 170                 pass "maint check-psymtabs"
 171             }
 172             timeout { fail "(timeout) maint check-psymtabs" }
 173         }
 174     }
 175     -re ".*$gdb_prompt $"     { fail "maint check-psymtabs" }
 176     timeout         { fail "(timeout) maint check-psymtabs" }
 177 }
 178
 179 # This command does not produce any output unless there is some problem
 180 # with the symtabs, so that branch will really never be covered in the
 181 # tests here!!
 182 gdb_test_no_output "maint check-symtabs"
 183
 184 # Test per-command stats.
 185 gdb_test_no_output "maint set per-command on"
 186 set decimal "\[0-9\]+"
 187 set time_fmt "${decimal}-${decimal}-${decimal} ${decimal}:${decimal}:${decimal}\\.${decimal}"
 188 gdb_test "pwd" \
 189     "${time_fmt} - command started\r\n.*\r\n${time_fmt} - command finished\r\nCommand execution time: \[0-9.\]+ \\(cpu\\), \[0-9.\]+ \\(wall\\)\[\r\n\]+Space used: $decimal \\(\\+$decimal for this command\\)\[\r\n\]+#symtabs: $decimal \\(\\+$decimal\\), #compunits: $decimal \\(\\+$decimal\\), #blocks: $decimal \\(\\+$decimal\\)"
 190 gdb_test "maint set per-command off" \
 191     "${time_fmt} - command started"
 192
 193 # The timeout value is raised, because printing all the symbols and
 194 # statistical information about Cygwin and Windows libraries takes a lot
 195 # of time.
 196 if [istarget "*-*-cygwin*"] {
 197         set oldtimeout $timeout
 198         set timeout [expr $timeout + 500]
 199 }
 200
 201 send_gdb "maint print statistics\n"
 202 gdb_expect  {
 203     -re "Statistics for\[^\n\r\]*maint\[^\n\r\]*:\r\n  Number of \"minimal\" symbols read: $decimal\r\n(  Number of \"partial\" symbols read: $decimal\r\n)?  Number of \"full\" symbols read: $decimal\r\n  Number of \"types\" defined: $decimal\r\n(  Number of psym tables \\(not yet expanded\\): $decimal\r\n)?(  Number of read CUs: $decimal\r\n  Number of unread CUs: $decimal\r\n)?  Number of symbol tables: $decimal\r\n  Number of symbol tables with line tables: $decimal\r\n  Number of symbol tables with blockvectors: $decimal\r\n  Total memory used for objfile obstack: $decimal\r\n  Total memory used for BFD obstack: $decimal\r\n  Total memory used for psymbol cache: $decimal\r\n  Total memory used for string cache: $decimal\r\n" {
 204         gdb_expect {
 205             -re "$gdb_prompt $" {
 206                 pass "maint print statistics"
 207             }
 208             timeout { fail "(timeout) maint print statistics" }
 209         }
 210     }
 211     -re ".*$gdb_prompt $"     { fail "maint print statistics" }
 212     timeout         { fail "(timeout) maint print statistics" }
 213 }
 214
 215 # There aren't any ...
 216 gdb_test_no_output "maint print dummy-frames"
 217
 218
 219
 220 # To avoid timeouts, we avoid expects with many .* patterns that match
 221 # many lines.  Instead, we keep track of which milestones we've seen
 222 # in the output, and stop when we've seen all of them.
 223
 224 set header 0
 225 set psymtabs 0
 226 set symtabs 0
 227 gdb_test_multiple "maint print objfiles" "" -lbl {
 228     -re "\r\nObject file.*maint($EXEEXT)?:  Objfile at ${hex}" {
 229         set header 1
 230         exp_continue
 231     }
 232     -re "\r\nPsymtabs:\[\r\t \]+" {
 233         set psymtabs 1
 234         exp_continue
 235     }
 236     -re "\r\nSymtabs:\[\r\t \]+\n" {
 237         set symtabs 1
 238         exp_continue
 239     }
 240     -re " at $hex," {
 241         exp_continue
 242     }
 243     -re -wrap "" {
 244         pass $gdb_test_name
 245     }
 246 }
 247
 248 proc maint_pass_if {val name} {
 249     if $val { pass $name } else { fail $name }
 250 }
 251
 252 maint_pass_if $header   "maint print objfiles: header"
 253 if { ! $have_gdb_index } {
 254     maint_pass_if $psymtabs "maint print objfiles: psymtabs"
 255 }
 256 maint_pass_if $symtabs  "maint print objfiles: symtabs"
 257
 258 if { ! $have_gdb_index } {
 259     set psymbols_output [standard_output_file psymbols_output]
 260     set psymbols_output_re [string_to_regexp $psymbols_output]
 261     set test_list [list \
 262                        "maint print psymbols -source" \
 263                        "maint print psymbols -source ${srcdir}/${subdir}/${srcfile} $psymbols_output" \
 264                        "maint print psymbols -pc" \
 265                        "maint print psymbols -pc main $psymbols_output"]
 266     foreach { test_name command } $test_list {
 267         send_gdb "$command\n"
 268             gdb_expect  {
 269                 -re "^maint print psymbols \[^\n\]*\r\n$gdb_prompt $" {
 270                     send_gdb "shell ls $psymbols_output\n"
 271                     gdb_expect {
 272                         -re "$psymbols_output_re\r\n$gdb_prompt $" {
 273                             # We want this grep to be as specific as possible,
 274                             # so it's less likely to match symbol file names in
 275                             # psymbols_output.  Yes, this actually happened;
 276                             # poor expect got tons of output, and timed out
 277                             # trying to match it.   --- Jim Blandy <jimb@cygnus.com>
 278                             send_gdb "shell grep 'main.*function' $psymbols_output\n"
 279                             gdb_expect {
 280                                 -re ".main., function, $hex.*$gdb_prompt $" {
 281                                     pass "$test_name 1"
 282                                 }
 283                                 -re ".*main.  .., function, $hex.*$gdb_prompt $" {
 284                                     pass "$test_name 2"
 285                                 }
 286                                 -re ".*$gdb_prompt $" { fail "$test_name" }
 287                                 timeout { fail "$test_name (timeout)" }
 288                             }
 289                             gdb_test "shell rm -f $psymbols_output" ".*" \
 290                                 "${test_name}: shell rm -f psymbols_output"
 291                         }
 292                         -re ".*$gdb_prompt $" { fail "$test_name" }
 293                         timeout { fail "$test_name (timeout)" }
 294                     }
 295                 }
 296                 -re ".*$gdb_prompt $" { fail "$test_name" }
 297                 timeout { fail "$test_name (timeout)" }
 298             }
 299     }
 300 }
 301
 302
 303 set msymbols_output [standard_output_file msymbols_output]
 304 set msymbols_output_re [string_to_regexp $msymbols_output]
 305 send_gdb "maint print msymbols -objfile ${binfile} $msymbols_output\n"
 306 gdb_expect  {
 307     -re "^maint print msymbols \[^\n\]*\r\n$gdb_prompt $" {
 308         send_gdb "shell ls $msymbols_output\n"
 309         gdb_expect {
 310             -re "$msymbols_output_re\r\n$gdb_prompt $" {
 311                 gdb_test "shell grep factorial $msymbols_output" \
 312                     "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*" \
 313                     "maint print msymbols, absolute pathname"
 314                 gdb_test "shell rm -f $msymbols_output" ".*" \
 315                     "shell rm -f msymbols_output"
 316             }
 317             -re ".*$gdb_prompt $" { fail "maint print msymbols" }
 318             timeout { fail "maint print msymbols (timeout)" }
 319         }
 320     }
 321     -re ".*$gdb_prompt $" { fail "maint print msymbols" }
 322     timeout { fail "maint print msymbols (timeout)" }
 323 }
 324
 325 # Check that maint print msymbols allows relative pathnames
 326 set mydir [pwd]
 327 gdb_test "cd [standard_output_file {}]" \
 328     "Working directory .*\..*" \
 329     "cd to objdir"
 330
 331 gdb_test_multiple "maint print msymbols -objfile ${testfile} msymbols_output2" "maint print msymbols" {
 332     -re "^maint print msymbols \[^\n\]*\r\n$gdb_prompt $" {
 333         gdb_test_multiple "shell ls msymbols_output2" "maint print msymbols" {
 334             -re "msymbols_output2\r\n$gdb_prompt $" {
 335                 gdb_test "shell grep factorial msymbols_output2" \
 336                     "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*" \
 337                     "maint print msymbols, relative pathname"
 338                 gdb_test "shell rm -f msymbols_output2" ".*"
 339             }
 340         }
 341     }
 342 }
 343 gdb_test "cd ${mydir}" \
 344     "Working directory [string_to_regexp ${mydir}]\..*" \
 345     "cd to mydir"
 346
 347
 348 # Request symbols for one particular source file so that we don't try to
 349 # dump the symbol information for the entire C library - over 500MB nowadays
 350 # for GNU libc.
 351
 352 set symbols_output [standard_output_file symbols_output]
 353 set symbols_output_re [string_to_regexp $symbols_output]
 354 set test_list [list \
 355                    "maint print symbols -source" \
 356                    "maint print symbols -source ${srcdir}/${subdir}/${srcfile} $symbols_output" \
 357                    "maint print symbols -pc" \
 358                    "maint print symbols -pc main $symbols_output"]
 359 foreach { test_name command } $test_list {
 360     send_gdb "$command\n"
 361     gdb_expect {
 362         -re "^maint print symbols \[^\n\]*\r\n$gdb_prompt $" {
 363             send_gdb "shell ls $symbols_output\n"
 364             gdb_expect {
 365                 -re "$symbols_output_re\r\n$gdb_prompt $" {
 366                     # See comments for `maint print psymbols'.
 367                     send_gdb "shell grep 'main(.*block' $symbols_output\n"
 368                     gdb_expect {
 369                         -re "int main\\(int, char \\*\\*, char \\*\\*\\); block.*$gdb_prompt $" {
 370                             pass "$test_name"
 371                         }
 372                         -re ".*$gdb_prompt $" { fail "$test_name" }
 373                         timeout { fail "$test_name (timeout)" }
 374                     }
 375                     gdb_test "shell rm -f $symbols_output" ".*" \
 376                         "$test_name: shell rm -f symbols_output"
 377                 }
 378                 -re ".*$gdb_prompt $" { fail "$test_name" }
 379                 timeout { fail "$test_name (timeout)" }
 380             }
 381         }
 382         -re ".*$gdb_prompt $" { fail "$test_name" }
 383         timeout { fail "$test_name (timeout)" }
 384     }
 385 }
 386
 387 set msg "maint print type"
 388 gdb_test_multiple "maint print type argc" $msg {
 389     -re "type node $hex\r\nname .int. \\($hex\\)\r\ncode $hex \\(TYPE_CODE_INT\\)\r\nlength \[24\]\r\nobjfile $hex\r\ntarget_type $hex\r\npointer_type $hex\r\nreference_type $hex\r\ntype_chain $hex\r\ninstance_flags $hex\r\nflags\r\nnfields 0 $hex\r\n$gdb_prompt $" {
 390         pass $msg
 391     }
 392 }
 393
 394 if [istarget "hppa*-*-11*"] {
 395     setup_xfail hppa*-*-*11* CLLbs14860
 396     gdb_test_multiple "maint print unwind &main" "maint print unwind" {
 397         -re ".*unwind_table_entry \\($hex\\):\r\n\tregion_start = $hex <main>\r\n\tregion_end = $hex <main\\+\[0-9\]*>\r\n\tflags = Args_stored Save_RP\r\n\tRegion_description = $hex\r\n\tEntry_FR = $hex\r\n\tEntry_GR = $hex\r\n\tTotal_frame_size = $hex\r\n$gdb_prompt $" {
 398             pass "maint print unwind"
 399         }
 400         -re ".*unwind_table_entry \\($hex\\):\r\n\tregion_start = $hex <main>\r\n\tregion_end = $hex <main\\+\[0-9\]*>\r\n\tflags = Args_stored Save_RP\r\n\tFLD = $hex\r\n\tFLD = $hex\r\n\tFLD = $hex\r\n\tFLD = $hex\r\n$gdb_prompt $" {
 401             xfail "maint print unwind"
 402         }
 403     }
 404 }
 405
 406 set oldtimeout $timeout
 407 set timeout [expr $timeout + 300]
 408
 409 # It'd be nice to check for every possible section.  However, that's
 410 # problematic, since the relative ordering wanders from release to
 411 # release of the compilers.  Instead, we'll just check for two
 412 # sections which appear to always come out in the same relative
 413 # order.  (If that changes, then we should just check for one
 414 # section.)
 415 #
 416 # And by the way: This testpoint will break for PA64, where a.out's
 417 # are ELF files.
 418
 419 # Standard GNU names.
 420 set text_section ".text"
 421 set data_section ".data"
 422
 423 gdb_test_multiple "maint info sections" "maint info sections" {
 424     -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*ER_RO.*$gdb_prompt $" {
 425         # Looks like RealView which uses different section names.
 426         set text_section ER_RO
 427         set data_section ER_RW
 428         pass "maint info sections"
 429     }
 430     -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*neardata.*$gdb_prompt $" {
 431         # c6x doesn't have .data section.  It has .neardata and .fardata section.
 432         set data_section ".neardata"
 433         pass "maint info sections"
 434     }
 435     -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*$gdb_prompt $" {
 436         pass "maint info sections"
 437     }
 438 }
 439
 440 # Test for new option: maint info sections <section name>
 441 # If you don't have a .text section, this will require tweaking.
 442
 443 gdb_test_multiple "maint info sections $text_section" \
 444     "maint info sections .text" {
 445         -re ".* \\.bss .*$gdb_prompt $" {
 446             fail "maint info sections .text"
 447         }
 448         -re ".* $data_section .*$gdb_prompt $" {
 449             fail "maint info sections .text"
 450         }
 451         -re ".* $text_section .*$gdb_prompt $" {
 452             pass "maint info sections .text"
 453         }
 454     }
 455
 456 # Test for new option: CODE section flag
 457 # If your data section is tagged CODE, xfail this test.
 458
 459 gdb_test_multiple "maint info sections CODE" "maint info sections CODE" {
 460     -re ".* $data_section .*$gdb_prompt $" { fail "maint info sections CODE" }
 461     -re ".* $text_section .*$gdb_prompt $" { pass "maint info sections CODE" }
 462 }
 463
 464 # Test for new option: DATA section flag
 465 # If your text section is tagged DATA, xfail this test.
 466 #
 467 # The "maint info sections DATA" test is marked for XFAIL on Windows,
 468 # because Windows has text sections marked DATA.
 469 setup_xfail "*-*-*cygwin*"
 470 setup_xfail "*-*-*mingw*"
 471
 472 gdb_test_multiple "maint info sections DATA" "maint info sections DATA" {
 473     -re ".* $text_section .*$gdb_prompt $" { fail "maint info sections DATA" }
 474     -re ".* $data_section .*$gdb_prompt $" { pass "maint info sections DATA" }
 475     -re ".* .rodata .*$gdb_prompt $" { pass "maint info sections DATA" }
 476 }
 477
 478 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 479
 480 gdb_test_multiple "maint info breakpoints" "maint info breakpoints" {
 481     -re "Num\[ \t\]+Type\[ \t\]+Disp\[ \t\]+Enb\[ \t\]+Address\[ \t\]+What\r\n1\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+$hex\[ \t\]+in main at.*break.c:$bp_location6 inf 1\r\n\[ \t\]+breakpoint already hit 1 time\r\n.*$gdb_prompt $" {
 482         pass "maint info breakpoints"
 483     }
 484     -re "Num\[ \t\]+Type\[ \t\]+Disp\[ \t\]+Enb\[ \t\]+Address\[ \t\]+What\r\n1\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+$hex in main at.*break.c:$bp_location6 sspace 1\r\n\[ \t\]+breakpoint already hit 1 time\r\n-1\[ \t\]+shlib events\[ \t\]+keep\[ \t\]+y\[ \t\]+$hex.*breakpoint already hit.*$gdb_prompt $" {
 485         pass "maint info breakpoints (with shlib events)"
 486     }
 487 }
 488
 489 gdb_test "maint print" \
 490     "\"maintenance print\" must be followed by the name of a print command\\.\r\nList.*unambiguous\\..*" \
 491     "maint print w/o args"
 492
 493 gdb_test "maint info" \
 494     "\"maintenance info\" must be followed by the name of an info command\\.\r\nList.*unambiguous\\..*" \
 495     "maint info w/o args"
 496
 497 gdb_test "maint" \
 498     "\"maintenance\" must be followed by the name of a maintenance command\\.\r\nList.*unambiguous\\..*" \
 499     "maint w/o args"
 500
 501 # Test that "main info line-table" w/o a file name shows the symtab for
 502 # $srcfile.
 503 set saw_srcfile 0
 504 gdb_test_multiple "maint info line-table" \
 505     "maint info line-table w/o a file name" {
 506     -re "symtab: \[^\n\r\]+${srcfile} \\(\\(struct symtab \\*\\) $hex\\)\r\nlinetable: \\(\\(struct linetable \\*\\) $hex\\):\r\nINDEX\[ \t\]+LINE\[ \t\]+ADDRESS" {
 507         set saw_srcfile 1
 508         exp_continue
 509     }
 510     -re "symtab: \[^\n\r\]+ \\(\\(struct symtab \\*\\) $hex\\)\r\nlinetable: \\(\\(struct linetable \\*\\) $hex\\):\r\nINDEX\[ \t\]+LINE\[ \t\]+ADDRESS" {
 511         # Match each symtab to avoid overflowing expect's buffer.
 512         exp_continue
 513     }
 514     -re "symtab: \[^\n\r\]+ \\(\\(struct symtab \\*\\) $hex\\)\r\nlinetable: \\(\\(struct linetable \\*\\) 0x0\\):\r\nNo line table.\r\n" {
 515         # For symtabs with no linetable.
 516         exp_continue
 517     }
 518     -re "^$decimal\[ \t\]+$decimal\[ \t\]+$hex\r\n" {
 519         # Line table entries can be long too:
 520         #
 521         #  INDEX    LINE ADDRESS
 522         #  0          29 0x00000000004006f6
 523         #  1          30 0x00000000004006fa
 524         #  2          31 0x0000000000400704
 525         #  3          42 0x0000000000400706
 526         #  4          43 0x0000000000400719
 527         #  5          44 0x0000000000400722
 528         #  6          45 0x0000000000400740
 529         #  (...)
 530         #  454       129 0x00007ffff7df1d28
 531         #  455       END 0x00007ffff7df1d3f
 532         #
 533         # Match each line to avoid overflowing expect's buffer.
 534         exp_continue
 535     }
 536     -re "^$decimal\[ \t\]+END\[ \t\]+$hex\r\n" {
 537         # Matches an end marker in the above.
 538         exp_continue
 539     }
 540     -re "^$gdb_prompt $" {
 541         gdb_assert $saw_srcfile $gdb_test_name
 542     }
 543 }
 544
 545 gdb_test "maint info line-table ${srcfile}" \
 546     "symtab: \[^\n\r\]+${srcfile}.*INDEX.*LINE.*ADDRESS.*" \
 547     "maint info line-table with filename of current symtab"
 548
 549 gdb_test_no_output "maint info line-table ${srcfile2}" \
 550     "maint info line-table with filename of symtab that is not currently expanded"
 551
 552 gdb_test_no_output "maint expand-symtabs"
 553
 554 gdb_test "maint info line-table ${srcfile2}" \
 555     "symtab: \[^\n\r\]+${srcfile2}.*INDEX.*LINE.*ADDRESS.*" \
 556     "maint info line-table with filename of symtab that is not current"
 557
 558 gdb_test_no_output "maint info line-table xxx.c" \
 559     "maint info line-table with invalid filename"
 560
 561 set timeout $oldtimeout
 562
 563 # Just check that the DWARF unwinders control flag is visible.
 564 gdb_test "maint show dwarf unwinders" \
 565     "The DWARF stack unwinders are currently (on|off)\\."
 566
 567 #============test help on maint commands
 568
 569 test_prefix_command_help {"maint info" "maintenance info"} {
 570     "Commands for showing internal info about the program being debugged\\.\[\r\n\]+"
 571 }
 572
 573 test_prefix_command_help {"maint print" "maintenance print"} {
 574     "Maintenance command for printing GDB internal state\\.\[\r\n\]+"
 575 }
 576
 577 test_prefix_command_help {"maint" "maintenance"} {
 578     "Commands for use by GDB maintainers\\.\[\r\n\]+"
 579     "Includes commands to dump specific internal GDB structures in\[\r\n\]+"
 580     "a human readable form, to cause GDB to deliberately dump core, etc\\.\[\r\n\]+"
 581 }
 582
 583 #set oldtimeout $timeout
 584 #set timeout [expr $timeout + 300]
 585
 586 gdb_test_multiple "maint dump-me" "maint dump-me" {
 587     -re "Should GDB dump core.*\\(y or n\\) $" {
 588         gdb_test "n" ".*" "maint dump-me"
 589     }
 590     -re "Undefined maintenance command: .*$gdb_prompt $" {
 591         # Command 'maint dump-me' is registered on non-win32 host.
 592         unsupported "maint dump-me"
 593     }
 594 }
 595
 596 send_gdb "maint internal-error\n"
 597 gdb_expect {
 598     -re "A problem internal to GDB has been detected" {
 599         pass "maint internal-error"
 600         if [gdb_internal_error_resync] {
 601             pass "internal-error resync"
 602         } else {
 603             fail "internal-error resync"
 604         }
 605     }
 606     -re ".*$gdb_prompt $" {
 607         fail "maint internal-error"
 608         untested "internal-error resync"
 609     }
 610     timeout {
 611         fail "maint internal-error (timeout)"
 612         untested "internal-error resync"
 613     }
 614 }
 615
 616 #set timeout $oldtimeout
 617
 618 # Test that the commands work without an argument.  For this test, we
 619 # don't need an inferior loaded/running.  See PR gdb/21164.
 620 gdb_exit
 621 gdb_start
 622 gdb_test_no_output "maint print symbols"
 623 gdb_test_no_output "maint print msymbols"
 624 gdb_test_no_output "maint print psymbols"
 625
 626 gdb_exit
 627 return 0