gdb/testsuite/gdb.base/maint.exp

   1 # Copyright 1998-2019 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 ${binfile}
 107
 108 if ![runto_main] then {
 109         perror "tests suppressed"
 110 }
 111
 112 # If we're using .gdb_index or .debug_names there will be no psymtabs.
 113 set have_gdb_index 0
 114 gdb_test_multiple "maint info sections .gdb_index .debug_names" "check for .gdb_index" {
 115     -re ": \\.gdb_index .*\r\n$gdb_prompt $" {
 116         set have_gdb_index 1
 117     }
 118     -re ": \\.debug_names .*\r\n$gdb_prompt $" {
 119         set have_gdb_index 1
 120     }
 121     -re ".*$gdb_prompt $" {
 122         ;# Nothing to do, present to avoid a FAIL.
 123     }
 124 }
 125
 126 # There also won't be any psymtabs if we read the index from the index cache.
 127 # We can detect this by looking if the index-cache is enabled and if the number
 128 # of cache misses is 0.
 129 set index_cache_misses -1
 130 gdb_test_multiple "show index-cache stats" "check index cache stats" {
 131     -re ".*Cache misses \\(this session\\): (\\d+)\r\n.*$gdb_prompt $" {
 132         set index_cache_misses $expect_out(1,string)
 133     }
 134 }
 135
 136 set using_index_cache 0
 137 gdb_test_multiple "show index-cache" "check index cache status" {
 138     -re ".*is currently disabled.\r\n$gdb_prompt $" {
 139         set using_index_cache 0
 140     }
 141     -re ".*is currently enabled.\r\n$gdb_prompt $" {
 142         set using_index_cache 1
 143     }
 144 }
 145
 146 if { $index_cache_misses == 0 && $using_index_cache } {
 147     set have_gdb_index 1
 148 }
 149
 150 #
 151 # this command does not produce any output
 152 # unless there is some problem with the symtabs and psymtabs
 153 # so that branch will really never be covered in this tests here!!
 154 #
 155
 156 # guo: on linux this command output is huge.  for some reason splitting up
 157 # the regexp checks works.
 158 #
 159 send_gdb "maint check-psymtabs\n"
 160 gdb_expect  {
 161     -re "^maint check-psymtabs" {
 162         gdb_expect {
 163             -re "$gdb_prompt $" {
 164                 pass "maint check-psymtabs"
 165             }
 166             timeout { fail "(timeout) maint check-psymtabs" }
 167         }
 168     }
 169     -re ".*$gdb_prompt $"     { fail "maint check-psymtabs" }
 170     timeout         { fail "(timeout) maint check-psymtabs" }
 171 }
 172
 173 # This command does not produce any output unless there is some problem
 174 # with the symtabs, so that branch will really never be covered in the
 175 # tests here!!
 176 gdb_test_no_output "maint check-symtabs"
 177
 178 # Test per-command stats.
 179 gdb_test_no_output "maint set per-command on"
 180 set decimal "\[0-9\]+"
 181 set time_fmt "${decimal}-${decimal}-${decimal} ${decimal}:${decimal}:${decimal}\\.${decimal}"
 182 gdb_test "pwd" \
 183     "${time_fmt} - command started\r\n.*\r\n${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\\)"
 184 gdb_test "maint set per-command off" \
 185     "${time_fmt} - command started"
 186
 187 # The timeout value is raised, because printing all the symbols and
 188 # statistical information about Cygwin and Windows libraries takes a lot
 189 # of time.
 190 if [istarget "*-*-cygwin*"] {
 191         set oldtimeout $timeout
 192         set timeout [expr $timeout + 500]
 193 }
 194
 195 send_gdb "maint print statistics\n"
 196 gdb_expect  {
 197     -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 macro cache: $decimal\r\n  Total memory used for file name cache: $decimal\r\n" {
 198         gdb_expect {
 199             -re "$gdb_prompt $" {
 200                 pass "maint print statistics"
 201             }
 202             timeout { fail "(timeout) maint print statistics" }
 203         }
 204     }
 205     -re ".*$gdb_prompt $"     { fail "maint print statistics" }
 206     timeout         { fail "(timeout) maint print statistics" }
 207 }
 208
 209 # There aren't any ...
 210 gdb_test_no_output "maint print dummy-frames"
 211
 212 send_gdb "maint print objfiles\n"
 213
 214 # To avoid timeouts, we avoid expects with many .* patterns that match
 215 # many lines.  Instead, we keep track of which milestones we've seen
 216 # in the output, and stop when we've seen all of them.
 217
 218 set header 0
 219 set psymtabs 0
 220 set symtabs 0
 221 set keep_looking 1
 222
 223 while {$keep_looking} {
 224     gdb_expect  {
 225
 226         -re "\r\n" {
 227             set output $expect_out(buffer)
 228             if {[regexp ".*Object file.*maint($EXEEXT)?:  Objfile at ${hex}" $output]} {
 229                 set header 1
 230             }
 231             if {[regexp ".*Psymtabs:\[\r\t \]+\n" $output]} {
 232                 set psymtabs 1
 233             }
 234             if {[regexp ".*Symtabs:\[\r\t \]+\n" $output]} {
 235                 set symtabs 1
 236             }
 237         }
 238
 239         -re ".*$gdb_prompt $" {
 240             set keep_looking 0
 241         }
 242         timeout {
 243             fail "(timeout) maint print objfiles"
 244             set keep_looking 0
 245         }
 246     }
 247 }
 248
 249 proc maint_pass_if {val name} {
 250     if $val { pass $name } else { fail $name }
 251 }
 252
 253 maint_pass_if $header   "maint print objfiles: header"
 254 if { ! $have_gdb_index } {
 255     maint_pass_if $psymtabs "maint print objfiles: psymtabs"
 256 }
 257 maint_pass_if $symtabs  "maint print objfiles: symtabs"
 258
 259 if { ! $have_gdb_index } {
 260     set psymbols_output [standard_output_file psymbols_output]
 261     set psymbols_output_re [string_to_regexp $psymbols_output]
 262     set test_list [list \
 263                        "maint print psymbols -source" \
 264                        "maint print psymbols -source ${srcdir}/${subdir}/${srcfile} $psymbols_output" \
 265                        "maint print psymbols -pc" \
 266                        "maint print psymbols -pc main $psymbols_output"]
 267     foreach { test_name command } $test_list {
 268         send_gdb "$command\n"
 269             gdb_expect  {
 270                 -re "^maint print psymbols \[^\n\]*\r\n$gdb_prompt $" {
 271                     send_gdb "shell ls $psymbols_output\n"
 272                     gdb_expect {
 273                         -re "$psymbols_output_re\r\n$gdb_prompt $" {
 274                             # We want this grep to be as specific as possible,
 275                             # so it's less likely to match symbol file names in
 276                             # psymbols_output.  Yes, this actually happened;
 277                             # poor expect got tons of output, and timed out
 278                             # trying to match it.   --- Jim Blandy <jimb@cygnus.com>
 279                             send_gdb "shell grep 'main.*function' $psymbols_output\n"
 280                             gdb_expect {
 281                                 -re ".main., function, $hex.*$gdb_prompt $" {
 282                                     pass "$test_name 1"
 283                                 }
 284                                 -re ".*main.  .., function, $hex.*$gdb_prompt $" {
 285                                     pass "$test_name 2"
 286                                 }
 287                                 -re ".*$gdb_prompt $" { fail "$test_name" }
 288                                 timeout { fail "$test_name (timeout)" }
 289                             }
 290                             gdb_test "shell rm -f $psymbols_output" ".*" \
 291                                 "${test_name}: shell rm -f psymbols_output"
 292                         }
 293                         -re ".*$gdb_prompt $" { fail "$test_name" }
 294                         timeout { fail "$test_name (timeout)" }
 295                     }
 296                 }
 297                 -re ".*$gdb_prompt $" { fail "$test_name" }
 298                 timeout { fail "$test_name (timeout)" }
 299             }
 300     }
 301 }
 302
 303
 304 set msymbols_output [standard_output_file msymbols_output]
 305 set msymbols_output_re [string_to_regexp $msymbols_output]
 306 send_gdb "maint print msymbols -objfile ${binfile} $msymbols_output\n"
 307 gdb_expect  {
 308     -re "^maint print msymbols \[^\n\]*\r\n$gdb_prompt $" {
 309         send_gdb "shell ls $msymbols_output\n"
 310         gdb_expect {
 311             -re "$msymbols_output_re\r\n$gdb_prompt $" {
 312                 gdb_test "shell grep factorial $msymbols_output" \
 313                     "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*" \
 314                     "maint print msymbols, absolute pathname"
 315                 gdb_test "shell rm -f $msymbols_output" ".*" \
 316                     "shell rm -f msymbols_output"
 317             }
 318             -re ".*$gdb_prompt $" { fail "maint print msymbols" }
 319             timeout { fail "maint print msymbols (timeout)" }
 320         }
 321     }
 322     -re ".*$gdb_prompt $" { fail "maint print msymbols" }
 323     timeout { fail "maint print msymbols (timeout)" }
 324 }
 325
 326 # Check that maint print msymbols allows relative pathnames
 327 set mydir [pwd]
 328 gdb_test "cd [standard_output_file {}]" \
 329     "Working directory .*\..*" \
 330     "cd to objdir"
 331
 332 gdb_test_multiple "maint print msymbols -objfile ${testfile} msymbols_output2" "maint print msymbols" {
 333     -re "^maint print msymbols \[^\n\]*\r\n$gdb_prompt $" {
 334         gdb_test_multiple "shell ls msymbols_output2" "maint print msymbols" {
 335             -re "msymbols_output2\r\n$gdb_prompt $" {
 336                 gdb_test "shell grep factorial msymbols_output2" \
 337                     "\\\[ *$decimal\\\] \[tT\]\[ \t\]+$hex \\.?factorial.*" \
 338                     "maint print msymbols, relative pathname"
 339                 gdb_test "shell rm -f msymbols_output2" ".*"
 340             }
 341         }
 342     }
 343 }
 344 gdb_test "cd ${mydir}" \
 345     "Working directory [string_to_regexp ${mydir}]\..*" \
 346     "cd to mydir"
 347
 348
 349 # Request symbols for one particular source file so that we don't try to
 350 # dump the symbol information for the entire C library - over 500MB nowadays
 351 # for GNU libc.
 352
 353 set symbols_output [standard_output_file symbols_output]
 354 set symbols_output_re [string_to_regexp $symbols_output]
 355 set test_list [list \
 356                    "maint print symbols -source" \
 357                    "maint print symbols -source ${srcdir}/${subdir}/${srcfile} $symbols_output" \
 358                    "maint print symbols -pc" \
 359                    "maint print symbols -pc main $symbols_output"]
 360 foreach { test_name command } $test_list {
 361     send_gdb "$command\n"
 362     gdb_expect {
 363         -re "^maint print symbols \[^\n\]*\r\n$gdb_prompt $" {
 364             send_gdb "shell ls $symbols_output\n"
 365             gdb_expect {
 366                 -re "$symbols_output_re\r\n$gdb_prompt $" {
 367                     # See comments for `maint print psymbols'.
 368                     send_gdb "shell grep 'main(.*block' $symbols_output\n"
 369                     gdb_expect {
 370                         -re "int main\\(int, char \\*\\*, char \\*\\*\\); block.*$gdb_prompt $" {
 371                             pass "$test_name"
 372                         }
 373                         -re ".*$gdb_prompt $" { fail "$test_name" }
 374                         timeout { fail "$test_name (timeout)" }
 375                     }
 376                     gdb_test "shell rm -f $symbols_output" ".*" \
 377                         "$test_name: shell rm -f symbols_output"
 378                 }
 379                 -re ".*$gdb_prompt $" { fail "$test_name" }
 380                 timeout { fail "$test_name (timeout)" }
 381             }
 382         }
 383         -re ".*$gdb_prompt $" { fail "$test_name" }
 384         timeout { fail "$test_name (timeout)" }
 385     }
 386 }
 387
 388 set msg "maint print type"
 389 gdb_test_multiple "maint print type argc" $msg {
 390     -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 $" {
 391         pass $msg
 392     }
 393 }
 394
 395 if [istarget "hppa*-*-11*"] {
 396     setup_xfail hppa*-*-*11* CLLbs14860
 397     gdb_test_multiple "maint print unwind &main" "maint print unwind" {
 398         -re ".*unwind_table_entry \\($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 $" {
 399             pass "maint print unwind"
 400         }
 401         -re ".*unwind_table_entry \\($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 $" {
 402             xfail "maint print unwind"
 403         }
 404     }
 405 }
 406
 407 set oldtimeout $timeout
 408 set timeout [expr $timeout + 300]
 409
 410 # It'd be nice to check for every possible section.  However, that's
 411 # problematic, since the relative ordering wanders from release to
 412 # release of the compilers.  Instead, we'll just check for two
 413 # sections which appear to always come out in the same relative
 414 # order.  (If that changes, then we should just check for one
 415 # section.)
 416 #
 417 # And by the way: This testpoint will break for PA64, where a.out's
 418 # are ELF files.
 419
 420 # Standard GNU names.
 421 set text_section ".text"
 422 set data_section ".data"
 423
 424 gdb_test_multiple "maint info sections" "maint info sections" {
 425     -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*ER_RO.*$gdb_prompt $" {
 426         # Looks like RealView which uses different section names.
 427         set text_section ER_RO
 428         set data_section ER_RW
 429         pass "maint info sections"
 430     }
 431     -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*neardata.*$gdb_prompt $" {
 432         # c6x doesn't have .data section.  It has .neardata and .fardata section.
 433         set data_section ".neardata"
 434         pass "maint info sections"
 435     }
 436     -re "Exec file:\r\n.*maint($EXEEXT)?., file type.*$gdb_prompt $" {
 437         pass "maint info sections"
 438     }
 439 }
 440
 441 # Test for new option: maint info sections <section name>
 442 # If you don't have a .text section, this will require tweaking.
 443
 444 gdb_test_multiple "maint info sections $text_section" \
 445     "maint info sections .text" {
 446         -re ".* \\.bss .*$gdb_prompt $" {
 447             fail "maint info sections .text"
 448         }
 449         -re ".* $data_section .*$gdb_prompt $" {
 450             fail "maint info sections .text"
 451         }
 452         -re ".* $text_section .*$gdb_prompt $" {
 453             pass "maint info sections .text"
 454         }
 455     }
 456
 457 # Test for new option: CODE section flag
 458 # If your data section is tagged CODE, xfail this test.
 459
 460 gdb_test_multiple "maint info sections CODE" "maint info sections CODE" {
 461     -re ".* $data_section .*$gdb_prompt $" { fail "maint info sections CODE" }
 462     -re ".* $text_section .*$gdb_prompt $" { pass "maint info sections CODE" }
 463 }
 464
 465 # Test for new option: DATA section flag
 466 # If your text section is tagged DATA, xfail this test.
 467 #
 468 # The "maint info sections DATA" test is marked for XFAIL on Windows,
 469 # because Windows has text sections marked DATA.
 470 setup_xfail "*-*-*cygwin*"
 471 setup_xfail "*-*-*mingw*"
 472
 473 gdb_test_multiple "maint info sections DATA" "maint info sections DATA" {
 474     -re ".* $text_section .*$gdb_prompt $" { fail "maint info sections DATA" }
 475     -re ".* $data_section .*$gdb_prompt $" { pass "maint info sections DATA" }
 476     -re ".* .rodata .*$gdb_prompt $" { pass "maint info sections DATA" }
 477 }
 478
 479 set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
 480
 481 gdb_test_multiple "maint info breakpoints" "maint info breakpoints" {
 482     -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 $" {
 483         pass "maint info breakpoints"
 484     }
 485     -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 $" {
 486         pass "maint info breakpoints (with shlib events)"
 487     }
 488 }
 489
 490 gdb_test "maint print" \
 491     "\"maintenance print\" must be followed by the name of a print command\\.\r\nList.*unambiguous\\..*" \
 492     "maint print w/o args"
 493
 494 gdb_test "maint info" \
 495     "\"maintenance info\" must be followed by the name of an info command\\.\r\nList.*unambiguous\\..*" \
 496     "maint info w/o args"
 497
 498 gdb_test "maint" \
 499     "\"maintenance\" must be followed by the name of a maintenance command\\.\r\nList.*unambiguous\\..*" \
 500     "maint w/o args"
 501
 502 # Test that "main info line-table" w/o a file name shows the symtab for
 503 # $srcfile.
 504 set saw_srcfile 0
 505 set test "maint info line-table w/o a file name"
 506 gdb_test_multiple "maint info line-table" $test {
 507     -re "symtab: \[^\n\r\]+${srcfile} \\(\\(struct symtab \\*\\) $hex\\)\r\nlinetable: \\(\\(struct linetable \\*\\) $hex\\):\r\nINDEX\[ \t\]+LINE\[ \t\]+ADDRESS" {
 508         set saw_srcfile 1
 509         exp_continue
 510     }
 511     -re "symtab: \[^\n\r\]+ \\(\\(struct symtab \\*\\) $hex\\)\r\nlinetable: \\(\\(struct linetable \\*\\) $hex\\):\r\nINDEX\[ \t\]+LINE\[ \t\]+ADDRESS" {
 512         # Match each symtab to avoid overflowing expect's buffer.
 513         exp_continue
 514     }
 515     -re "$decimal\[ \t\]+$decimal\[ \t\]+$hex\r\n" {
 516         # Line table entries can be long too:
 517         #
 518         #  INDEX    LINE ADDRESS
 519         #  0          29 0x00000000004006f6
 520         #  1          30 0x00000000004006fa
 521         #  2          31 0x0000000000400704
 522         #  3          42 0x0000000000400706
 523         #  4          43 0x0000000000400719
 524         #  5          44 0x0000000000400722
 525         #  6          45 0x0000000000400740
 526         #  (...)
 527         #  454       129 0x00007ffff7df1d28
 528         #  455         0 0x00007ffff7df1d3f
 529         #
 530         # Match each line to avoid overflowing expect's buffer.
 531         exp_continue
 532     }
 533     -re "$gdb_prompt $" {
 534         gdb_assert $saw_srcfile $test
 535     }
 536 }
 537
 538 gdb_test "maint info line-table ${srcfile}" \
 539     "symtab: \[^\n\r\]+${srcfile}.*INDEX.*LINE.*ADDRESS.*" \
 540     "maint info line-table with filename of current symtab"
 541
 542 gdb_test_no_output "maint info line-table ${srcfile2}" \
 543     "maint info line-table with filename of symtab that is not currently expanded"
 544
 545 gdb_test_no_output "maint expand-symtabs"
 546
 547 gdb_test "maint info line-table ${srcfile2}" \
 548     "symtab: \[^\n\r\]+${srcfile2}.*INDEX.*LINE.*ADDRESS.*" \
 549     "maint info line-table with filename of symtab that is not current"
 550
 551 gdb_test_no_output "maint info line-table xxx.c" \
 552     "maint info line-table with invalid filename"
 553
 554 set timeout $oldtimeout
 555
 556 # Just check that the DWARF unwinders control flag is visible.
 557 gdb_test "maint show dwarf unwinders" \
 558     "The DWARF stack unwinders are currently (on|off)\\."
 559
 560 #============test help on maint commands
 561
 562 test_prefix_command_help {"maint info" "maintenance info"} {
 563     "Commands for showing internal info about the program being debugged\\.\[\r\n\]+"
 564 }
 565
 566 test_prefix_command_help {"maint print" "maintenance print"} {
 567     "Maintenance command for printing GDB internal state\\.\[\r\n\]+"
 568 }
 569
 570 test_prefix_command_help {"maint" "maintenance"} {
 571     "Commands for use by GDB maintainers\\.\[\r\n\]+"
 572     "Includes commands to dump specific internal GDB structures in\[\r\n\]+"
 573     "a human readable form, to cause GDB to deliberately dump core, etc\\.\[\r\n\]+"
 574 }
 575
 576 #set oldtimeout $timeout
 577 #set timeout [expr $timeout + 300]
 578
 579 gdb_test_multiple "maint dump-me" "maint dump-me" {
 580     -re "Should GDB dump core.*\\(y or n\\) $" {
 581         gdb_test "n" ".*" "maint dump-me"
 582     }
 583     -re "Undefined maintenance command: .*$gdb_prompt $" {
 584         # Command 'maint dump-me' is registered on non-win32 host.
 585         unsupported "maint dump-me"
 586     }
 587 }
 588
 589 send_gdb "maint internal-error\n"
 590 gdb_expect {
 591     -re "A problem internal to GDB has been detected" {
 592         pass "maint internal-error"
 593         if [gdb_internal_error_resync] {
 594             pass "internal-error resync"
 595         } else {
 596             fail "internal-error resync"
 597         }
 598     }
 599     -re ".*$gdb_prompt $" {
 600         fail "maint internal-error"
 601         untested "internal-error resync"
 602     }
 603     timeout {
 604         fail "maint internal-error (timeout)"
 605         untested "internal-error resync"
 606     }
 607 }
 608
 609 #set timeout $oldtimeout
 610
 611 # Test that the commands work without an argument.  For this test, we
 612 # don't need an inferior loaded/running.  See PR gdb/21164.
 613 gdb_exit
 614 gdb_start
 615 gdb_test_no_output "maint print symbols"
 616 gdb_test_no_output "maint print msymbols"
 617 gdb_test_no_output "maint print psymbols"
 618
 619 gdb_exit
 620 return 0