gdb/testsuite/lib/mi-support.exp

   1 # Copyright 1999, 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
   2 # Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # This file was based on a file written by Fred Fish. (fnf@cygnus.com)
  18
  19 # Test setup routines that work with the MI interpreter.
  20
  21 # The variable mi_gdb_prompt is a regexp which matches the gdb mi prompt.
  22 # Set it if it is not already set.
  23 global mi_gdb_prompt
  24 if ![info exists mi_gdb_prompt] then {
  25     set mi_gdb_prompt "\[(\]gdb\[)\] \r\n"
  26 }
  27
  28 global mi_inferior_spawn_id
  29 global mi_inferior_tty_name
  30
  31 set MIFLAGS "-i=mi"
  32
  33 set thread_selected_re "=thread-selected,id=\"\[0-9+\]\"\r\n"
  34 set library_loaded_re "=library-loaded\[^\n\]+\"\r\n"
  35
  36 #
  37 # mi_gdb_exit -- exit the GDB, killing the target program if necessary
  38 #
  39 proc mi_gdb_exit {} {
  40     catch mi_uncatched_gdb_exit
  41 }
  42
  43 proc mi_uncatched_gdb_exit {} {
  44     global GDB
  45     global INTERNAL_GDBFLAGS GDBFLAGS
  46     global verbose
  47     global gdb_spawn_id;
  48     global gdb_prompt
  49     global mi_gdb_prompt
  50     global MIFLAGS
  51
  52     gdb_stop_suppressing_tests;
  53
  54     if { [info procs sid_exit] != "" } {
  55         sid_exit
  56     }
  57
  58     if ![info exists gdb_spawn_id] {
  59         return;
  60     }
  61
  62     verbose "Quitting $GDB $INTERNAL_GDBFLAGS $GDBFLAGS $MIFLAGS"
  63
  64     if { [is_remote host] && [board_info host exists fileid] } {
  65         send_gdb "999-gdb-exit\n";
  66         gdb_expect 10 {
  67             -re "y or n" {
  68                 send_gdb "y\n";
  69                 exp_continue;
  70             }
  71             -re "Undefined command.*$gdb_prompt $" {
  72                 send_gdb "quit\n"
  73                 exp_continue;
  74             }
  75             -re "DOSEXIT code" { }
  76             default { }
  77         }
  78     }
  79
  80     if ![is_remote host] {
  81         remote_close host;
  82     }
  83     unset gdb_spawn_id
  84 }
  85
  86 #
  87 # default_mi_gdb_start [INFERIOR_PTY] -- start gdb running, default procedure
  88 #
  89 # INFERIOR_PTY should be set to separate-inferior-tty to have the inferior work
  90 # with it's own PTY. If set to same-inferior-tty, the inferior shares GDB's PTY.
  91 # The default value is same-inferior-tty.
  92 #
  93 # When running over NFS, particularly if running many simultaneous
  94 # tests on different hosts all using the same server, things can
  95 # get really slow.  Give gdb at least 3 minutes to start up.
  96 #
  97 proc default_mi_gdb_start { args } {
  98     global verbose
  99     global GDB
 100     global INTERNAL_GDBFLAGS GDBFLAGS
 101     global gdb_prompt
 102     global mi_gdb_prompt
 103     global timeout
 104     global gdb_spawn_id;
 105     global MIFLAGS
 106
 107     gdb_stop_suppressing_tests;
 108     set inferior_pty no-tty
 109
 110     if { [llength $args] == 1} {
 111         set inferior_pty [lindex $args 0]
 112     }
 113
 114     set separate_inferior_pty [string match $inferior_pty separate-inferior-tty]
 115
 116     # Start SID.
 117     if { [info procs sid_start] != "" } {
 118         verbose "Spawning SID"
 119         sid_start
 120     }
 121
 122     verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS $MIFLAGS"
 123
 124     if [info exists gdb_spawn_id] {
 125         return 0;
 126     }
 127
 128     if ![is_remote host] {
 129         if { [which $GDB] == 0 } then {
 130             perror "$GDB does not exist."
 131             exit 1
 132         }
 133     }
 134
 135     # Create the new PTY for the inferior process.
 136     if { $separate_inferior_pty } {
 137         spawn -pty
 138         global mi_inferior_spawn_id
 139         global mi_inferior_tty_name
 140         set mi_inferior_spawn_id $spawn_id
 141         set mi_inferior_tty_name $spawn_out(slave,name)
 142     }
 143
 144     set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS $MIFLAGS [host_info gdb_opts]"];
 145     if { $res < 0 || $res == "" } {
 146         perror "Spawning $GDB failed."
 147         return 1;
 148     }
 149     gdb_expect {
 150         -re "~\"GNU.*\r\n~\".*$mi_gdb_prompt$" {
 151             # We have a new format mi startup prompt.  If we are
 152             # running mi1, then this is an error as we should be
 153             # using the old-style prompt.
 154             if { $MIFLAGS == "-i=mi1" } {
 155                 perror "(mi startup) Got unexpected new mi prompt."
 156                 remote_close host;
 157                 return -1;
 158             }
 159             verbose "GDB initialized."
 160         }
 161         -re "\[^~\].*$mi_gdb_prompt$" {
 162             # We have an old format mi startup prompt.  If we are
 163             # not running mi1, then this is an error as we should be
 164             # using the new-style prompt.
 165             if { $MIFLAGS != "-i=mi1" } {
 166                 perror "(mi startup) Got unexpected old mi prompt."
 167                 remote_close host;
 168                 return -1;
 169             }
 170             verbose "GDB initialized."
 171         }
 172         -re ".*unrecognized option.*for a complete list of options." {
 173             untested "Skip mi tests (not compiled with mi support)."
 174             remote_close host;
 175             return -1;
 176         }
 177         -re ".*Interpreter `mi' unrecognized." {
 178             untested "Skip mi tests (not compiled with mi support)."
 179             remote_close host;
 180             return -1;
 181         }
 182         timeout {
 183             perror "(timeout) GDB never initialized after 10 seconds."
 184             remote_close host;
 185             return -1
 186         }
 187     }
 188     set gdb_spawn_id -1;
 189
 190     # FIXME: mi output does not go through pagers, so these can be removed.
 191     # force the height to "unlimited", so no pagers get used
 192     send_gdb "100-gdb-set height 0\n"
 193     gdb_expect 10 {
 194         -re ".*100-gdb-set height 0\r\n100\\\^done\r\n$mi_gdb_prompt$" {
 195             verbose "Setting height to 0." 2
 196         }
 197         timeout {
 198             warning "Couldn't set the height to 0"
 199         }
 200     }
 201     # force the width to "unlimited", so no wraparound occurs
 202     send_gdb "101-gdb-set width 0\n"
 203     gdb_expect 10 {
 204         -re ".*101-gdb-set width 0\r\n101\\\^done\r\n$mi_gdb_prompt$" {
 205             verbose "Setting width to 0." 2
 206         }
 207         timeout {
 208             warning "Couldn't set the width to 0."
 209         }
 210     }
 211     # If allowing the inferior to have its own PTY then assign the inferior
 212     # its own terminal device here.
 213     if { $separate_inferior_pty } {
 214         send_gdb "102-inferior-tty-set $mi_inferior_tty_name\n"
 215         gdb_expect 10 {
 216             -re ".*102\\\^done\r\n$mi_gdb_prompt$" {
 217                 verbose "redirect inferior output to new terminal device."
 218             }
 219             timeout {
 220                 warning "Couldn't redirect inferior output." 2
 221             }
 222         }
 223     }
 224
 225     detect_async
 226
 227     return 0;
 228 }
 229
 230 #
 231 # Overridable function. You can override this function in your
 232 # baseboard file.
 233 #
 234 proc mi_gdb_start { args } {
 235   return [default_mi_gdb_start $args]
 236 }
 237
 238 # Many of the tests depend on setting breakpoints at various places and
 239 # running until that breakpoint is reached.  At times, we want to start
 240 # with a clean-slate with respect to breakpoints, so this utility proc
 241 # lets us do this without duplicating this code everywhere.
 242 #
 243
 244 proc mi_delete_breakpoints {} {
 245     global mi_gdb_prompt
 246
 247 # FIXME: The mi operation won't accept a prompt back and will use the 'all' arg
 248     send_gdb "102-break-delete\n"
 249     gdb_expect 30 {
 250          -re "Delete all breakpoints.*y or n.*$" {
 251             send_gdb "y\n";
 252             exp_continue
 253          }
 254          -re "102-break-delete\r\n102\\\^done\r\n$mi_gdb_prompt$" {
 255             # This happens if there were no breakpoints
 256          }
 257          timeout { perror "Delete all breakpoints in mi_delete_breakpoints (timeout)" ; return }
 258     }
 259
 260 # The correct output is not "No breakpoints or watchpoints." but an
 261 # empty BreakpointTable. Also, a query is not acceptable with mi.
 262     send_gdb "103-break-list\n"
 263     gdb_expect 30 {
 264          -re "103-break-list\r\n103\\\^done,BreakpointTable=\{\}\r\n$mi_gdb_prompt$" {}
 265          -re "103-break-list\r\n103\\\^done,BreakpointTable=\{nr_rows=\".\",nr_cols=\".\",hdr=\\\[\{width=\".*\",alignment=\".*\",col_name=\"number\",colhdr=\"Num\"\}.*colhdr=\"Type\".*colhdr=\"Disp\".*colhdr=\"Enb\".*colhdr=\"Address\".*colhdr=\"What\".*\\\],body=\\\[\\\]\}\r\n$mi_gdb_prompt$" {}
 266          -re "103-break-list\r\n103\\\^doneNo breakpoints or watchpoints.\r\n\r\n$mi_gdb_prompt$" {warning "Unexpected console text received"}
 267          -re "$mi_gdb_prompt$" { perror "Breakpoints not deleted" ; return }
 268          -re "Delete all breakpoints.*or n.*$" {
 269             warning "Unexpected prompt for breakpoints deletion";
 270             send_gdb "y\n";
 271             exp_continue
 272         }
 273          timeout { perror "-break-list (timeout)" ; return }
 274     }
 275 }
 276
 277 proc mi_gdb_reinitialize_dir { subdir } {
 278     global mi_gdb_prompt
 279     global MIFLAGS
 280
 281     global suppress_flag
 282     if { $suppress_flag } {
 283         return
 284     }
 285
 286     if [is_remote host] {
 287         return "";
 288     }
 289
 290     if { $MIFLAGS == "-i=mi1" } {
 291       send_gdb "104-environment-directory\n"
 292       gdb_expect 60 {
 293         -re ".*Reinitialize source path to empty.*y or n. " {
 294             warning "Got confirmation prompt for dir reinitialization."
 295             send_gdb "y\n"
 296             gdb_expect 60 {
 297                 -re "$mi_gdb_prompt$" {}
 298                 timeout {error "Dir reinitialization failed (timeout)"}
 299             }
 300         }
 301         -re "$mi_gdb_prompt$" {}
 302         timeout {error "Dir reinitialization failed (timeout)"}
 303       }
 304     } else {
 305       send_gdb "104-environment-directory -r\n"
 306       gdb_expect 60 {
 307         -re "104\\\^done,source-path=.*\r\n$mi_gdb_prompt$" {}
 308         -re "$mi_gdb_prompt$" {}
 309         timeout {error "Dir reinitialization failed (timeout)"}
 310       }
 311     }
 312
 313     send_gdb "105-environment-directory $subdir\n"
 314     gdb_expect 60 {
 315         -re "Source directories searched.*$mi_gdb_prompt$" {
 316             verbose "Dir set to $subdir"
 317         }
 318         -re "105\\\^done.*\r\n$mi_gdb_prompt$" {
 319             # FIXME: We return just the prompt for now.
 320             verbose "Dir set to $subdir"
 321             # perror "Dir \"$subdir\" failed."
 322         }
 323     }
 324 }
 325
 326 # Send GDB the "target" command.
 327 # FIXME: Some of these patterns are not appropriate for MI.  Based on
 328 # config/monitor.exp:gdb_target_command.
 329 proc mi_gdb_target_cmd { targetname serialport } {
 330     global mi_gdb_prompt
 331
 332     set serialport_re [string_to_regexp $serialport]
 333     for {set i 1} {$i <= 3} {incr i} {
 334         send_gdb "47-target-select $targetname $serialport\n"
 335         gdb_expect 60 {
 336             -re "47\\^connected.*$mi_gdb_prompt" {
 337                 verbose "Set target to $targetname";
 338                 return 0;
 339             }
 340             -re "unknown host.*$mi_gdb_prompt" {
 341                 verbose "Couldn't look up $serialport"
 342             }
 343             -re "Couldn't establish connection to remote.*$mi_gdb_prompt$" {
 344                 verbose "Connection failed";
 345             }
 346             -re "Remote MIPS debugging.*$mi_gdb_prompt$" {
 347                 verbose "Set target to $targetname";
 348                 return 0;
 349             }
 350             -re "Remote debugging using .*$serialport_re.*$mi_gdb_prompt$" {
 351                 verbose "Set target to $targetname";
 352                 return 0;
 353             }
 354             -re "Remote target $targetname connected to.*$mi_gdb_prompt$" {
 355                 verbose "Set target to $targetname";
 356                 return 0;
 357             }
 358             -re "Connected to.*$mi_gdb_prompt$" {
 359                 verbose "Set target to $targetname";
 360                 return 0;
 361             }
 362             -re "Ending remote.*$mi_gdb_prompt$" { }
 363             -re "Connection refused.*$mi_gdb_prompt$" {
 364                 verbose "Connection refused by remote target.  Pausing, and trying again."
 365                 sleep 5
 366                 continue
 367             }
 368             -re "Non-stop mode requested, but remote does not support non-stop.*$mi_gdb_prompt" {
 369                 unsupported "Non-stop mode not supported"
 370                 return 1
 371             }
 372             -re "Timeout reading from remote system.*$mi_gdb_prompt$" {
 373                 verbose "Got timeout error from gdb.";
 374             }
 375             timeout {
 376                 send_gdb "\ 3";
 377                 break
 378             }
 379         }
 380     }
 381     return 1
 382 }
 383
 384 #
 385 # load a file into the debugger (file command only).
 386 # return a -1 if anything goes wrong.
 387 #
 388 proc mi_gdb_file_cmd { arg } {
 389     global verbose
 390     global loadpath
 391     global loadfile
 392     global GDB
 393     global mi_gdb_prompt
 394     global last_loaded_file
 395     upvar timeout timeout
 396
 397     set last_loaded_file $arg
 398
 399     if [is_remote host] {
 400         set arg [remote_download host $arg];
 401         if { $arg == "" } {
 402             error "download failed"
 403             return -1;
 404         }
 405     }
 406
 407 # FIXME: Several of these patterns are only acceptable for console
 408 # output.  Queries are an error for mi.
 409     send_gdb "105-file-exec-and-symbols $arg\n"
 410     gdb_expect 120 {
 411         -re "Reading symbols from.*done.*$mi_gdb_prompt$" {
 412             verbose "\t\tLoaded $arg into the $GDB"
 413             return 0
 414         }
 415         -re "has no symbol-table.*$mi_gdb_prompt$" {
 416             perror "$arg wasn't compiled with \"-g\""
 417             return -1
 418         }
 419         -re "Load new symbol table from \".*\".*y or n. $" {
 420             send_gdb "y\n"
 421             gdb_expect 120 {
 422                 -re "Reading symbols from.*done.*$mi_gdb_prompt$" {
 423                     verbose "\t\tLoaded $arg with new symbol table into $GDB"
 424                     # All OK
 425                 }
 426                 timeout {
 427                     perror "(timeout) Couldn't load $arg, other program already loaded."
 428                     return -1
 429                 }
 430             }
 431         }
 432         -re "No such file or directory.*$mi_gdb_prompt$" {
 433             perror "($arg) No such file or directory\n"
 434             return -1
 435         }
 436         -re "105-file-exec-and-symbols .*\r\n105\\\^done\r\n$mi_gdb_prompt$" {
 437             # We (MI) are just giving the prompt back for now, instead of giving
 438             # some acknowledgement.
 439             return 0
 440         }
 441         timeout {
 442             perror "couldn't load $arg into $GDB (timed out)."
 443             return -1
 444         }
 445         eof {
 446             # This is an attempt to detect a core dump, but seems not to
 447             # work.  Perhaps we need to match .* followed by eof, in which
 448             # gdb_expect does not seem to have a way to do that.
 449             perror "couldn't load $arg into $GDB (end of file)."
 450             return -1
 451         }
 452     }
 453 }
 454
 455 #
 456 # connect to the target and download a file, if necessary.
 457 # return a -1 if anything goes wrong.
 458 #
 459 proc mi_gdb_target_load { } {
 460     global verbose
 461     global loadpath
 462     global loadfile
 463     global GDB
 464     global mi_gdb_prompt
 465     upvar timeout timeout
 466
 467     if { [info procs gdbserver_gdb_load] != "" } {
 468         mi_gdb_test "kill" ".*" ""
 469         set res [gdbserver_gdb_load]
 470         set protocol [lindex $res 0]
 471         set gdbport [lindex $res 1]
 472
 473         if { [mi_gdb_target_cmd $protocol $gdbport] != 0 } {
 474             return -1
 475         }
 476     } elseif { [info procs send_target_sid] != "" } {
 477         # For SID, things get complex
 478         send_gdb "kill\n"
 479         gdb_expect 10 {
 480             -re ".*$mi_gdb_prompt$"
 481         }
 482         send_target_sid
 483         gdb_expect 60 {
 484             -re "\\^done.*$mi_gdb_prompt$" {
 485             }
 486             timeout {
 487                 perror "Unable to connect to SID target"
 488                 return -1
 489             }
 490         }
 491         send_gdb "48-target-download\n"
 492         gdb_expect 10 {
 493             -re "48\\^done.*$mi_gdb_prompt$" {
 494             }
 495             timeout {
 496                 perror "Unable to download to SID target"
 497                 return -1
 498             }
 499         }
 500     } elseif { [target_info protocol] == "sim" } {
 501         # For the simulator, just connect to it directly.
 502         send_gdb "47-target-select sim\n"
 503         gdb_expect 10 {
 504             -re "47\\^connected.*$mi_gdb_prompt$" {
 505             }
 506             timeout {
 507                 perror "Unable to select sim target"
 508                 return -1
 509             }
 510         }
 511         send_gdb "48-target-download\n"
 512         gdb_expect 10 {
 513             -re "48\\^done.*$mi_gdb_prompt$" {
 514             }
 515             timeout {
 516                 perror "Unable to download to sim target"
 517                 return -1
 518             }
 519         }
 520     } elseif { [target_info gdb_protocol] == "remote" } {
 521         # remote targets
 522         if { [mi_gdb_target_cmd "remote" [target_info netport]] != 0 } {
 523             perror "Unable to connect to remote target"
 524             return -1
 525         }
 526         send_gdb "48-target-download\n"
 527         gdb_expect 10 {
 528             -re "48\\^done.*$mi_gdb_prompt$" {
 529             }
 530             timeout {
 531                 perror "Unable to download to remote target"
 532                 return -1
 533             }
 534         }
 535     }
 536     return 0
 537 }
 538
 539 #
 540 # load a file into the debugger.
 541 # return a -1 if anything goes wrong.
 542 #
 543 proc mi_gdb_load { arg } {
 544     if { $arg != "" } {
 545         return [mi_gdb_file_cmd $arg]
 546     }
 547     return 0
 548 }
 549
 550 # mi_gdb_test COMMAND PATTERN MESSAGE [IPATTERN] -- send a command to gdb;
 551 #   test the result.
 552 #
 553 # COMMAND is the command to execute, send to GDB with send_gdb.  If
 554 #   this is the null string no command is sent.
 555 # PATTERN is the pattern to match for a PASS, and must NOT include
 556 #   the \r\n sequence immediately before the gdb prompt.
 557 # MESSAGE is the message to be printed.  (If this is the empty string,
 558 #   then sometimes we don't call pass or fail at all; I don't
 559 #   understand this at all.)
 560 # IPATTERN is the pattern to match for the inferior's output.  This parameter
 561 #   is optional.  If present, it will produce a PASS if the match is
 562 #   successful, and a FAIL if unsuccessful.
 563 #
 564 # Returns:
 565 #    1 if the test failed,
 566 #    0 if the test passes,
 567 #   -1 if there was an internal error.
 568 #
 569 proc mi_gdb_test { args } {
 570     global verbose
 571     global mi_gdb_prompt
 572     global GDB expect_out
 573     upvar timeout timeout
 574
 575     set command [lindex $args 0]
 576     set pattern [lindex $args 1]
 577     set message [lindex $args 2]
 578
 579     if [llength $args]==4 {
 580         set ipattern [lindex $args 3]
 581     }
 582
 583     if [llength $args]==5 {
 584         set question_string [lindex $args 3];
 585         set response_string [lindex $args 4];
 586     } else {
 587         set question_string "^FOOBAR$"
 588     }
 589
 590     if $verbose>2 then {
 591         send_user "Sending \"$command\" to gdb\n"
 592         send_user "Looking to match \"$pattern\"\n"
 593         send_user "Message is \"$message\"\n"
 594     }
 595
 596     set result -1
 597     set string "${command}\n";
 598     set string_regex [string_to_regexp $command]
 599
 600     if { $command != "" } {
 601         while { "$string" != "" } {
 602             set foo [string first "\n" "$string"];
 603             set len [string length "$string"];
 604             if { $foo < [expr $len - 1] } {
 605                 set str [string range "$string" 0 $foo];
 606                 if { [send_gdb "$str"] != "" } {
 607                     global suppress_flag;
 608
 609                     if { ! $suppress_flag } {
 610                         perror "Couldn't send $command to GDB.";
 611                     }
 612                     fail "$message";
 613                     return $result;
 614                 }
 615                 gdb_expect 2 {
 616                     -re "\[\r\n\]" { }
 617                     timeout { }
 618                 }
 619                 set string [string range "$string" [expr $foo + 1] end];
 620             } else {
 621                 break;
 622             }
 623         }
 624         if { "$string" != "" } {
 625             if { [send_gdb "$string"] != "" } {
 626                 global suppress_flag;
 627
 628                 if { ! $suppress_flag } {
 629                     perror "Couldn't send $command to GDB.";
 630                 }
 631                 fail "$message";
 632                 return $result;
 633             }
 634         }
 635     }
 636
 637     if [info exists timeout] {
 638         set tmt $timeout;
 639     } else {
 640         global timeout;
 641         if [info exists timeout] {
 642             set tmt $timeout;
 643         } else {
 644             set tmt 60;
 645         }
 646     }
 647     verbose -log "Expecting: ^($string_regex\[\r\n\]+)?($pattern\[\r\n\]+$mi_gdb_prompt\[ \]*)"
 648     gdb_expect $tmt {
 649          -re "\\*\\*\\* DOSEXIT code.*" {
 650              if { $message != "" } {
 651                  fail "$message";
 652              }
 653              gdb_suppress_entire_file "GDB died";
 654              return -1;
 655          }
 656          -re "Ending remote debugging.*$mi_gdb_prompt\[ \]*$" {
 657             if ![isnative] then {
 658                 warning "Can`t communicate to remote target."
 659             }
 660             gdb_exit
 661             gdb_start
 662             set result -1
 663         }
 664          -re "^($string_regex\[\r\n\]+)?($pattern\[\r\n\]+$mi_gdb_prompt\[ \]*)" {
 665             # At this point, $expect_out(1,string) is the MI input command.
 666             # and $expect_out(2,string) is the MI output command.
 667             # If $expect_out(1,string) is "", then there was no MI input command here.
 668
 669             # NOTE, there is no trailing anchor because with GDB/MI,
 670             # asynchronous responses can happen at any point, causing more
 671             # data to be available.  Normally an anchor is used to make
 672             # sure the end of the output is matched, however, $mi_gdb_prompt
 673             # is just as good of an anchor since mi_gdb_test is meant to
 674             # match a single mi output command.  If a second GDB/MI output
 675             # response is sent, it will be in the buffer for the next
 676             # time mi_gdb_test is called.
 677             if ![string match "" $message] then {
 678                 pass "$message"
 679             }
 680             set result 0
 681         }
 682          -re "(${question_string})$" {
 683             send_gdb "$response_string\n";
 684             exp_continue;
 685         }
 686          -re "Undefined.* command:.*$mi_gdb_prompt\[ \]*$" {
 687             perror "Undefined command \"$command\"."
 688             fail "$message"
 689             set result 1
 690         }
 691          -re "Ambiguous command.*$mi_gdb_prompt\[ \]*$" {
 692             perror "\"$command\" is not a unique command name."
 693             fail "$message"
 694             set result 1
 695         }
 696          -re "Program exited with code \[0-9\]+.*$mi_gdb_prompt\[ \]*$" {
 697             if ![string match "" $message] then {
 698                 set errmsg "$message (the program exited)"
 699             } else {
 700                 set errmsg "$command (the program exited)"
 701             }
 702             fail "$errmsg"
 703             return -1
 704         }
 705          -re "The program is not being run.*$mi_gdb_prompt\[ \]*$" {
 706             if ![string match "" $message] then {
 707                 set errmsg "$message (the program is no longer running)"
 708             } else {
 709                 set errmsg "$command (the program is no longer running)"
 710             }
 711             fail "$errmsg"
 712             return -1
 713         }
 714          -re ".*$mi_gdb_prompt\[ \]*$" {
 715             if ![string match "" $message] then {
 716                 fail "$message"
 717             }
 718             set result 1
 719         }
 720          "<return>" {
 721             send_gdb "\n"
 722             perror "Window too small."
 723             fail "$message"
 724         }
 725          -re "\\(y or n\\) " {
 726             send_gdb "n\n"
 727             perror "Got interactive prompt."
 728             fail "$message"
 729         }
 730          eof {
 731              perror "Process no longer exists"
 732              if { $message != "" } {
 733                  fail "$message"
 734              }
 735              return -1
 736         }
 737          full_buffer {
 738             perror "internal buffer is full."
 739             fail "$message"
 740         }
 741         timeout {
 742             if ![string match "" $message] then {
 743                 fail "$message (timeout)"
 744             }
 745             set result 1
 746         }
 747     }
 748
 749     # If the GDB output matched, compare the inferior output.
 750     if { $result == 0 } {
 751         if [ info exists ipattern ] {
 752             if { ![target_info exists gdb,noinferiorio] } {
 753                 global mi_inferior_spawn_id
 754                 expect {
 755                     -i $mi_inferior_spawn_id -re "$ipattern" {
 756                         pass "$message inferior output"
 757                     }
 758                     timeout {
 759                         fail "$message inferior output (timeout)"
 760                         set result 1
 761                     }
 762                 }
 763             } else {
 764                 unsupported "$message inferior output"
 765             }
 766         }
 767     }
 768
 769     return $result
 770 }
 771
 772 #
 773 # MI run command.  (A modified version of gdb_run_cmd)
 774 #
 775
 776 # In patterns, the newline sequence ``\r\n'' is matched explicitly as
 777 # ``.*$'' could swallow up output that we attempt to match elsewhere.
 778
 779 proc mi_run_cmd {args} {
 780     global suppress_flag
 781     if { $suppress_flag } {
 782         return -1
 783     }
 784     global mi_gdb_prompt
 785     global thread_selected_re
 786     global library_loaded_re
 787
 788     if [target_info exists gdb_init_command] {
 789         send_gdb "[target_info gdb_init_command]\n";
 790         gdb_expect 30 {
 791             -re "$mi_gdb_prompt$" { }
 792             default {
 793                 perror "gdb_init_command for target failed";
 794                 return -1;
 795             }
 796         }
 797     }
 798
 799     if { [mi_gdb_target_load] < 0 } {
 800         return -1
 801     }
 802
 803     if [target_info exists use_gdb_stub] {
 804         if [target_info exists gdb,do_reload_on_run] {
 805             send_gdb "220-exec-continue\n";
 806             gdb_expect 60 {
 807                 -re "220\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
 808                 default {}
 809             }
 810             return 0;
 811         }
 812
 813         if [target_info exists gdb,start_symbol] {
 814             set start [target_info gdb,start_symbol];
 815         } else {
 816             set start "start";
 817         }
 818
 819         # HACK: Should either use 000-jump or fix the target code
 820         # to better handle RUN.
 821         send_gdb  "jump *$start\n"
 822         warning "Using CLI jump command, expect run-to-main FAIL"
 823         return 0
 824     }
 825
 826     send_gdb "220-exec-run $args\n"
 827     gdb_expect {
 828         -re "220\\^running\r\n(\\*running,thread-id=\"\[^\"\]+\"\r\n|=thread-created,id=\"1\",group-id=\"\[0-9\]+\"\r\n)*(${library_loaded_re})*(${thread_selected_re})?${mi_gdb_prompt}" {
 829         }
 830         -re "\\^error,msg=\"The target does not support running in non-stop mode.\"" {
 831             unsupported "Non-stop mode not supported"
 832             return -1
 833         }
 834         timeout {
 835             perror "Unable to start target"
 836             return -1
 837         }
 838     }
 839     # NOTE: Shortly after this there will be a ``000*stopped,...(gdb)''
 840
 841     return 0
 842 }
 843
 844 #
 845 # Just like run-to-main but works with the MI interface
 846 #
 847
 848 proc mi_run_to_main { } {
 849     global suppress_flag
 850     if { $suppress_flag } {
 851         return -1
 852     }
 853
 854     global srcdir
 855     global subdir
 856     global binfile
 857     global srcfile
 858
 859     mi_delete_breakpoints
 860     mi_gdb_reinitialize_dir $srcdir/$subdir
 861     mi_gdb_load ${binfile}
 862
 863     mi_runto main
 864 }
 865
 866
 867 # Just like gdb's "runto" proc, it will run the target to a given
 868 # function.  The big difference here between mi_runto and mi_execute_to
 869 # is that mi_execute_to must have the inferior running already.  This
 870 # proc will (like gdb's runto) (re)start the inferior, too.
 871 #
 872 # FUNC is the linespec of the place to stop (it inserts a breakpoint here).
 873 # It returns:
 874 #   -1  if test suppressed, failed, timedout
 875 #    0  if test passed
 876
 877 proc mi_runto_helper {func run_or_continue} {
 878   global suppress_flag
 879   if { $suppress_flag } {
 880     return -1
 881   }
 882
 883   global mi_gdb_prompt expect_out
 884   global hex decimal fullname_syntax
 885
 886   set test "mi runto $func"
 887   mi_gdb_test "200-break-insert -t $func" \
 888     "200\\^done,bkpt=\{number=\"\[0-9\]+\",type=\"breakpoint\",disp=\"del\",enabled=\"y\",addr=\"$hex\",func=\"$func\(\\\(.*\\\)\)?\",file=\".*\",line=\"\[0-9\]*\",times=\"0\",original-location=\".*\"\}" \
 889     "breakpoint at $func"
 890
 891   if {![regexp {number="[0-9]+"} $expect_out(buffer) str]
 892       || ![scan $str {number="%d"} bkptno]} {
 893     set bkptno {[0-9]+}
 894   }
 895
 896   if {$run_or_continue == "run"} {
 897       if { [mi_run_cmd] < 0 } {
 898           return -1
 899       }
 900   } else {
 901       mi_send_resuming_command "exec-continue" "$test"
 902   }
 903
 904   mi_expect_stop "breakpoint-hit" $func ".*" ".*" "\[0-9\]+" { "" "disp=\"del\"" } $test
 905 }
 906
 907 proc mi_runto {func} {
 908     return [mi_runto_helper $func "run"]
 909 }
 910
 911 # Next to the next statement
 912 # For return values, see mi_execute_to_helper
 913
 914 proc mi_next { test } {
 915   return [mi_next_to {.*} {.*} {.*} {.*} $test]
 916 }
 917
 918
 919 # Step to the next statement
 920 # For return values, see mi_execute_to_helper
 921
 922 proc mi_step { test } {
 923   return [mi_step_to {.*} {.*} {.*} {.*} $test]
 924 }
 925
 926 set async "unknown"
 927
 928 proc detect_async {} {
 929     global async
 930     global mi_gdb_prompt
 931
 932     send_gdb "show target-async\n"
 933
 934     gdb_expect {
 935         -re ".*Controlling the inferior in asynchronous mode is on...*$mi_gdb_prompt$" {
 936             set async 1
 937         }
 938         -re ".*$mi_gdb_prompt$" {
 939             set async 0
 940         }
 941         timeout {
 942             set async 0
 943         }
 944     }
 945     return $async
 946 }
 947
 948 # Wait for MI *stopped notification to appear.
 949 # The REASON, FUNC, ARGS, FILE and LINE are regular expressions
 950 # to match against whatever is output in *stopped.  ARGS should
 951 # not include [] the list of argument is enclosed in, and other
 952 # regular expressions should not include quotes.
 953 # If EXTRA is a list of one element, it's the regular expression
 954 # for output expected right after *stopped, and before GDB prompt.
 955 # If EXTRA is a list of two elements, the first element is for
 956 # output right after *stopped, and the second element is output
 957 # right after reason field.  The regex after reason should not include
 958 # the comma separating it from the following fields.
 959 #
 960 # When we fail to match output at all, -1 is returned.  Otherwise,
 961 # the line at which we stop is returned.  This is useful when exact
 962 # line is not possible to specify for some reason -- one can pass
 963 # the .* or "\[0-9\]*" regexps for line, and then check the line
 964 # programmatically.
 965 #
 966 # Do not pass .* for any argument if you are expecting more than one stop.
 967 proc mi_expect_stop { reason func args file line extra test } {
 968
 969     global mi_gdb_prompt
 970     global hex
 971     global decimal
 972     global fullname_syntax
 973     global async
 974     global thread_selected_re
 975
 976     set after_stopped ""
 977     set after_reason ""
 978     if { [llength $extra] == 2 } {
 979         set after_stopped [lindex $extra 0]
 980         set after_reason [lindex $extra 1]
 981         set after_reason "${after_reason},"
 982     } elseif { [llength $extra] == 1 } {
 983         set after_stopped [lindex $extra 0]
 984     }
 985
 986     if {$async} {
 987         set prompt_re ""
 988     } else {
 989         set prompt_re "$mi_gdb_prompt$"
 990     }
 991
 992     if { $reason == "really-no-reason" } {
 993         gdb_expect {
 994           -re "\\*stopped\r\n$prompt_re" {
 995             pass "$test"
 996           }
 997           timeout {
 998               fail "$test (unknown output after running)"
 999           }
1000         }
1001         return
1002     }
1003
1004     if { $reason == "exited-normally" } {
1005
1006         gdb_expect {
1007           -re "\\*stopped,reason=\"exited-normally\"\r\n$prompt_re" {
1008             pass "$test"
1009           }
1010           -re ".*$mi_gdb_prompt$" {fail "continue to end (2)"}
1011           timeout {
1012               fail "$test (unknown output after running)"
1013           }
1014         }
1015         return
1016     }
1017
1018     set args "\\\[$args\\\]"
1019
1020     set bn ""
1021     if { $reason == "breakpoint-hit" } {
1022         set bn {bkptno="[0-9]+",}
1023     }
1024
1025     set r ""
1026     if { $reason != "" } {
1027         set r "reason=\"$reason\","
1028     }
1029
1030
1031     set a $after_reason
1032
1033     set any "\[^\n\]*"
1034
1035     verbose -log "mi_expect_stop: expecting: \\*stopped,${r}${a}${bn}frame=\{addr=\"$hex\",func=\"$func\",args=$args,file=\"$any$file\",fullname=\"${fullname_syntax}$file\",line=\"$line\"\}$after_stopped,thread-id=\"$decimal\",stopped-threads=$any\r\n($thread_selected_re)?$prompt_re"
1036     gdb_expect {
1037         -re "\\*stopped,${r}${a}${bn}frame=\{addr=\"$hex\",func=\"$func\",args=$args,file=\"$any$file\",fullname=\"${fullname_syntax}$file\",line=\"($line)\"\}$after_stopped,thread-id=\"$decimal\",stopped-threads=$any\r\n($thread_selected_re)?$prompt_re" {
1038             pass "$test"
1039             return $expect_out(2,string)
1040         }
1041         -re "\\*stopped,${r}${a}${bn}frame=\{addr=\"$hex\",func=\"$any\",args=\[\\\[\{\]$any\[\\\]\}\],file=\"$any\",fullname=\"${fullname_syntax}$any\",line=\"\[0-9\]*\"\}$after_stopped,thread-id=\"$decimal\",stopped-threads=$any\r\n$prompt_re" {
1042             verbose -log "got $expect_out(buffer)"
1043             fail "$test (stopped at wrong place)"
1044             return -1
1045         }
1046         -re ".*\r\n$mi_gdb_prompt$" {
1047             verbose -log "got $expect_out(buffer)"
1048             fail "$test (unknown output after running)"
1049             return -1
1050         }
1051         timeout {
1052             fail "$test (timeout)"
1053             return -1
1054         }
1055     }
1056 }
1057
1058 # Wait for MI *stopped notification related to an interrupt request to
1059 # appear.
1060 proc mi_expect_interrupt { test } {
1061     global mi_gdb_prompt
1062     global decimal
1063     global async
1064
1065     if {$async} {
1066         set prompt_re ""
1067     } else {
1068         set prompt_re "$mi_gdb_prompt$"
1069     }
1070
1071     set r "reason=\"signal-received\",signal-name=\"0\",signal-meaning=\"Signal 0\""
1072
1073     set any "\[^\n\]*"
1074
1075     # A signal can land anywhere, just ignore the location
1076     verbose -log "mi_expect_interrupt: expecting: \\*stopped,${r}$any\r\n$prompt_re"
1077     gdb_expect {
1078         -re "\\*stopped,${r}$any\r\n$prompt_re" {
1079             pass "$test"
1080             return 0;
1081         }
1082         -re ".*\r\n$mi_gdb_prompt$" {
1083             verbose -log "got $expect_out(buffer)"
1084             fail "$test (unknown output after running)"
1085             return -1
1086         }
1087         timeout {
1088             fail "$test (timeout)"
1089             return -1
1090         }
1091     }
1092 }
1093
1094 # cmd should not include the number or newline (i.e. "exec-step 3", not
1095 # "220-exec-step 3\n"
1096
1097 # Can not match -re ".*\r\n${mi_gdb_prompt}", because of false positives
1098 # after the first prompt is printed.
1099
1100 proc mi_execute_to { cmd reason func args file line extra test } {
1101     global suppress_flag
1102     if { $suppress_flag } {
1103         return -1
1104     }
1105
1106     mi_send_resuming_command "$cmd" "$test"
1107     set r [mi_expect_stop $reason $func $args $file $line $extra $test]
1108     return $r
1109 }
1110
1111 proc mi_next_to { func args file line test } {
1112     mi_execute_to "exec-next" "end-stepping-range" "$func" "$args" \
1113         "$file" "$line" "" "$test"
1114 }
1115
1116 proc mi_step_to { func args file line test } {
1117     mi_execute_to "exec-step" "end-stepping-range" "$func" "$args" \
1118         "$file" "$line" "" "$test"
1119 }
1120
1121 proc mi_finish_to { func args file line result ret test } {
1122     mi_execute_to "exec-finish" "function-finished" "$func" "$args" \
1123         "$file" "$line" \
1124         ",gdb-result-var=\"$result\",return-value=\"$ret\"" \
1125         "$test"
1126 }
1127
1128 proc mi_continue_to {func} {
1129     mi_runto_helper $func "continue"
1130 }
1131
1132 proc mi0_execute_to { cmd reason func args file line extra test } {
1133     mi_execute_to_helper "$cmd" "$reason" "$func" "\{$args\}" \
1134         "$file" "$line" "$extra" "$test"
1135 }
1136
1137 proc mi0_next_to { func args file line test } {
1138     mi0_execute_to "exec-next" "end-stepping-range" "$func" "$args" \
1139         "$file" "$line" "" "$test"
1140 }
1141
1142 proc mi0_step_to { func args file line test } {
1143     mi0_execute_to "exec-step" "end-stepping-range" "$func" "$args" \
1144         "$file" "$line" "" "$test"
1145 }
1146
1147 proc mi0_finish_to { func args file line result ret test } {
1148     mi0_execute_to "exec-finish" "function-finished" "$func" "$args" \
1149         "$file" "$line" \
1150         ",gdb-result-var=\"$result\",return-value=\"$ret\"" \
1151         "$test"
1152 }
1153
1154 proc mi0_continue_to { bkptno func args file line test } {
1155     mi0_execute_to "exec-continue" "breakpoint-hit\",bkptno=\"$bkptno" \
1156         "$func" "$args" "$file" "$line" "" "$test"
1157 }
1158
1159 # Creates a breakpoint and checks the reported fields are as expected
1160 proc mi_create_breakpoint { location number disp func file line address test } {
1161     verbose -log "Expecting: 222\\^done,bkpt=\{number=\"$number\",type=\"breakpoint\",disp=\"$disp\",enabled=\"y\",addr=\"$address\",func=\"$func\",file=\"$file\",fullname=\".*\",line=\"$line\",times=\"0\",original-location=\".*\"\}"
1162     mi_gdb_test "222-break-insert $location" \
1163         "222\\^done,bkpt=\{number=\"$number\",type=\"breakpoint\",disp=\"$disp\",enabled=\"y\",addr=\"$address\",func=\"$func\",file=\"$file\",fullname=\".*\",line=\"$line\",times=\"0\",original-location=\".*\"\}" \
1164         $test
1165 }
1166
1167 proc mi_list_breakpoints { expected test } {
1168     set fullname ".*"
1169
1170     set body ""
1171     set first 1
1172
1173     foreach item $expected {
1174         if {$first == 0} {
1175             set body "$body,"
1176             set first 0
1177         }
1178         set number [lindex $item 0]
1179         set disp [lindex $item 1]
1180         set func [lindex $item 2]
1181         set file [lindex $item 3]
1182         set line [lindex $item 4]
1183         set address [lindex $item 5]
1184         set body "${body}bkpt=\{number=\"$number\",type=\"breakpoint\",disp=\"$disp\",enabled=\"y\",addr=\"$address\",func=\"$func\",file=\".*$file\",${fullname},line=\"$line\",times=\"0\",original-location=\".*\"\}"
1185         set first 0
1186     }
1187
1188     verbose -log "Expecting: 666\\\^done,BreakpointTable=\{nr_rows=\".\",nr_cols=\".\",hdr=\\\[\{width=\".*\",alignment=\".*\",col_name=\"number\",colhdr=\"Num\"\}.*colhdr=\"Type\".*colhdr=\"Disp\".*colhdr=\"Enb\".*colhdr=\"Address\".*colhdr=\"What\".*\\\],body=\\\[$body\\\]\}"
1189     mi_gdb_test "666-break-list" \
1190         "666\\\^done,BreakpointTable=\{nr_rows=\".\",nr_cols=\".\",hdr=\\\[\{width=\".*\",alignment=\".*\",col_name=\"number\",colhdr=\"Num\"\}.*colhdr=\"Type\".*colhdr=\"Disp\".*colhdr=\"Enb\".*colhdr=\"Address\".*colhdr=\"What\".*\\\],body=\\\[$body\\\]\}" \
1191         $test
1192 }
1193
1194 # Creates varobj named NAME for EXPRESSION.
1195 # Name cannot be "-".
1196 proc mi_create_varobj { name expression testname } {
1197     mi_gdb_test "-var-create $name * $expression" \
1198         "\\^done,name=\"$name\",numchild=\"\[0-9\]+\",value=\".*\",type=.*,has_more=\"0\"" \
1199         $testname
1200 }
1201
1202 proc mi_create_floating_varobj { name expression testname } {
1203     mi_gdb_test "-var-create $name @ $expression" \
1204         "\\^done,name=\"$name\",numchild=\"\(-1\|\[0-9\]+\)\",value=\".*\",type=.*" \
1205         $testname
1206 }
1207
1208
1209 # Same as mi_create_varobj, but also checks the reported type
1210 # of the varobj.
1211 proc mi_create_varobj_checked { name expression type testname } {
1212     mi_gdb_test "-var-create $name * $expression" \
1213         "\\^done,name=\"$name\",numchild=\"\[0-9\]+\",value=\".*\",type=\"$type\".*" \
1214         $testname
1215 }
1216
1217 # Same as mi_create_floating_varobj, but assumes the test is creating
1218 # a dynamic varobj that has children, so the value must be "{...}".
1219 proc mi_create_dynamic_varobj {name expression testname} {
1220     mi_gdb_test "-var-create $name @ $expression" \
1221         "\\^done,name=\"$name\",numchild=\"\(-1\|\[0-9\]+\)\",value=\"{\\.\\.\\.}\",type=.*" \
1222         $testname
1223 }
1224
1225 # Deletes the specified NAME.
1226 proc mi_delete_varobj { name testname } {
1227     mi_gdb_test "-var-delete $name" \
1228         "\\^done,ndeleted=.*" \
1229         $testname
1230 }
1231
1232 # Updates varobj named NAME and checks that all varobjs in EXPECTED
1233 # are reported as updated, and no other varobj is updated.
1234 # Assumes that no varobj is out of scope and that no varobj changes
1235 # types.
1236 proc mi_varobj_update { name expected testname } {
1237     set er "\\^done,changelist=\\\["
1238     set first 1
1239     foreach item $expected {
1240         set v "{name=\"$item\",in_scope=\"true\",type_changed=\"false\",has_more=\".\"}"
1241         if {$first == 1} {
1242             set er "$er$v"
1243             set first 0
1244         } else {
1245             set er "$er,$v"
1246         }
1247     }
1248     set er "$er\\\]"
1249
1250     verbose -log "Expecting: $er" 2
1251     mi_gdb_test "-var-update $name" $er $testname
1252 }
1253
1254 proc mi_varobj_update_with_type_change { name new_type new_children testname } {
1255     set v "{name=\"$name\",in_scope=\"true\",type_changed=\"true\",new_type=\"$new_type\",new_num_children=\"$new_children\",has_more=\".\"}"
1256     set er "\\^done,changelist=\\\[$v\\\]"
1257     verbose -log "Expecting: $er"
1258     mi_gdb_test "-var-update $name" $er $testname
1259 }
1260
1261 # A helper that turns a key/value list into a regular expression
1262 # matching some MI output.
1263 proc mi_varobj_update_kv_helper {list} {
1264     set first 1
1265     set rx ""
1266     foreach {key value} $list {
1267         if {!$first} {
1268             append rx ,
1269         }
1270         set first 0
1271         if {$key == "new_children"} {
1272             append rx "$key=\\\[$value\\\]"
1273         } else {
1274             append rx "$key=\"$value\""
1275         }
1276     }
1277     return $rx
1278 }
1279
1280 # A helper for mi_varobj_update_dynamic that computes a match
1281 # expression given a child list.
1282 proc mi_varobj_update_dynamic_helper {children} {
1283     set crx ""
1284
1285     set first 1
1286     foreach child $children {
1287         if {!$first} {
1288             append crx ,
1289         }
1290         set first 0
1291         append crx "{"
1292         append crx [mi_varobj_update_kv_helper $child]
1293         append crx "}"
1294     }
1295
1296     return $crx
1297 }
1298
1299 # Update a dynamic varobj named NAME.  CHILDREN is a list of children
1300 # that have been updated; NEW_CHILDREN is a list of children that were
1301 # added to the primary varobj.  Each child is a list of key/value
1302 # pairs that are expected.  SELF is a key/value list holding
1303 # information about the varobj itself.  TESTNAME is the name of the
1304 # test.
1305 proc mi_varobj_update_dynamic {name testname self children new_children} {
1306     if {[llength $new_children]} {
1307         set newrx [mi_varobj_update_dynamic_helper $new_children]
1308         lappend self new_children $newrx
1309     }
1310     set selfrx [mi_varobj_update_kv_helper $self]
1311     set crx [mi_varobj_update_dynamic_helper $children]
1312
1313     set er "\\^done,changelist=\\\[\{name=\"$name\",in_scope=\"true\""
1314     append er ",$selfrx\}"
1315     if {"$crx" != ""} {
1316         append er ",$crx"
1317     }
1318     append er "\\\]"
1319
1320     verbose -log "Expecting: $er"
1321     mi_gdb_test "-var-update $name" $er $testname
1322 }
1323
1324 proc mi_check_varobj_value { name value testname } {
1325
1326     mi_gdb_test "-var-evaluate-expression $name" \
1327         "\\^done,value=\"$value\"" \
1328         $testname
1329 }
1330
1331 # Helper proc which constructs a child regexp for
1332 # mi_list_varobj_children and mi_varobj_update_dynamic.
1333 proc mi_child_regexp {children add_child} {
1334     set children_exp {}
1335     set whatever "\"\[^\"\]+\""
1336
1337     if {$add_child} {
1338         set pre "child="
1339     } else {
1340         set pre ""
1341     }
1342
1343     foreach item $children {
1344
1345         set name [lindex $item 0]
1346         set exp [lindex $item  1]
1347         set numchild [lindex $item 2]
1348         if {[llength $item] == 5} {
1349             set type [lindex $item 3]
1350             set value [lindex $item 4]
1351
1352             lappend children_exp\
1353                 "$pre{name=\"$name\",exp=\"$exp\",numchild=\"$numchild\",value=\"$value\",type=\"$type\"\(,thread-id=\"\[0-9\]+\")?}"
1354         } elseif {[llength $item] == 4} {
1355             set type [lindex $item 3]
1356
1357             lappend children_exp\
1358                 "$pre{name=\"$name\",exp=\"$exp\",numchild=\"$numchild\",type=\"$type\"\(,thread-id=\"\[0-9\]+\")?}"
1359         } else {
1360             lappend children_exp\
1361                 "$pre{name=\"$name\",exp=\"$exp\",numchild=\"$numchild\"(,thread-id=\"\[0-9\]+\")?}"
1362         }
1363     }
1364     return [join $children_exp ","]
1365 }
1366
1367 # Check the results of the:
1368 #
1369 #   -var-list-children VARNAME
1370 #
1371 # command.  The CHILDREN parement should be a list of lists.
1372 # Each inner list can have either 3 or 4 elements, describing
1373 # fields that gdb is expected to report for child variable object,
1374 # in the following order
1375 #
1376 #   - Name
1377 #   - Expression
1378 #   - Number of children
1379 #   - Type
1380 #
1381 # If inner list has 3 elements, the gdb is expected to output no
1382 # type for a child and no value.
1383 #
1384 # If the inner list has 4 elements, gdb output is expected to
1385 # have no value.
1386 #
1387 proc mi_list_varobj_children { varname children testname } {
1388     mi_list_varobj_children_range $varname "" "" [llength $children] $children \
1389       $testname
1390 }
1391
1392 # Like mi_list_varobj_children, but sets a subrange.  NUMCHILDREN is
1393 # the total number of children.
1394 proc mi_list_varobj_children_range {varname from to numchildren children testname} {
1395     set options ""
1396     if {[llength $varname] == 2} {
1397         set options [lindex $varname 1]
1398         set varname [lindex $varname 0]
1399     }
1400
1401     set whatever "\"\[^\"\]+\""
1402
1403     set children_exp_j [mi_child_regexp $children 1]
1404     if {$numchildren} {
1405         set expected "\\^done,numchild=\".*\",children=\\\[$children_exp_j.*\\\]"
1406     } {
1407         set expected "\\^done,numchild=\"0\""
1408     }
1409
1410     if {"$to" == ""} {
1411         append expected ",has_more=\"0\""
1412     } elseif {$to >= 0 && $numchildren > $to} {
1413         append expected ",has_more=\"1\""
1414     } else {
1415         append expected ",has_more=\"0\""
1416     }
1417
1418     verbose -log "Expecting: $expected"
1419
1420     mi_gdb_test "-var-list-children $options $varname $from $to" \
1421       $expected $testname
1422 }
1423
1424 # Verifies that variable object VARNAME has NUMBER children,
1425 # where each one is named $VARNAME.<index-of-child> and has type TYPE.
1426 proc mi_list_array_varobj_children { varname number type testname } {
1427     set t {}
1428     for {set i 0} {$i < $number} {incr i} {
1429         lappend t [list $varname.$i $i 0 $type]
1430     }
1431     mi_list_varobj_children $varname $t $testname
1432 }
1433
1434 # A list of two-element lists.  First element of each list is
1435 # a Tcl statement, and the second element is the line
1436 # number of source C file where the statement originates.
1437 set mi_autotest_data ""
1438 # The name of the source file for autotesting.
1439 set mi_autotest_source ""
1440
1441 proc count_newlines { string } {
1442     return [regexp -all "\n" $string]
1443 }
1444
1445 # Prepares for running inline tests in FILENAME.
1446 # See comments for mi_run_inline_test for detailed
1447 # explanation of the idea and syntax.
1448 proc mi_prepare_inline_tests { filename } {
1449
1450     global srcdir
1451     global subdir
1452     global mi_autotest_source
1453     global mi_autotest_data
1454
1455     set mi_autotest_data {}
1456
1457     set mi_autotest_source $filename
1458
1459     if { ! [regexp "^/" "$filename"] } then {
1460         set filename "$srcdir/$subdir/$filename"
1461     }
1462
1463     set chan [open $filename]
1464     set content [read $chan]
1465     set line_number 1
1466     while {1} {
1467         set start [string first "/*:" $content]
1468         if {$start != -1} {
1469             set end [string first ":*/" $content]
1470             if {$end == -1} {
1471                 error "Unterminated special comment in $filename"
1472             }
1473
1474             set prefix [string range $content 0 $start]
1475             set prefix_newlines [count_newlines $prefix]
1476
1477             set line_number [expr $line_number+$prefix_newlines]
1478             set comment_line $line_number
1479
1480             set comment [string range $content [expr $start+3] [expr $end-1]]
1481
1482             set comment_newlines [count_newlines $comment]
1483             set line_number [expr $line_number+$comment_newlines]
1484
1485             set comment [string trim $comment]
1486             set content [string range $content [expr $end+3] \
1487                              [string length $content]]
1488             lappend mi_autotest_data [list $comment $comment_line]
1489         } else {
1490            break
1491         }
1492     }
1493     close $chan
1494 }
1495
1496 # Helper to mi_run_inline_test below.
1497 # Return the list of all (statement,line_number) lists
1498 # that comprise TESTCASE.  The begin and end markers
1499 # are not included.
1500 proc mi_get_inline_test {testcase} {
1501
1502     global mi_gdb_prompt
1503     global mi_autotest_data
1504     global mi_autotest_source
1505
1506     set result {}
1507
1508     set seen_begin 0
1509     set seen_end 0
1510     foreach l $mi_autotest_data {
1511
1512         set comment [lindex $l 0]
1513
1514         if {$comment == "BEGIN: $testcase"} {
1515             set seen_begin 1
1516         } elseif {$comment == "END: $testcase"} {
1517             set seen_end 1
1518             break
1519         } elseif {$seen_begin==1} {
1520             lappend result $l
1521         }
1522     }
1523
1524     if {$seen_begin == 0} {
1525         error "Autotest $testcase not found"
1526     }
1527
1528     if {$seen_begin == 1 && $seen_end == 0} {
1529         error "Missing end marker for test $testcase"
1530     }
1531
1532     return $result
1533 }
1534
1535 # Sets temporary breakpoint at LOCATION.
1536 proc mi_tbreak {location} {
1537
1538     global mi_gdb_prompt
1539
1540     mi_gdb_test "-break-insert -t $location" \
1541         {\^done,bkpt=.*} \
1542         "run to $location (set breakpoint)"
1543 }
1544
1545 # Send COMMAND that must be a command that resumes
1546 # the inferiour (run/continue/next/etc) and consumes
1547 # the "^running" output from it.
1548 proc mi_send_resuming_command_raw {command test} {
1549
1550     global mi_gdb_prompt
1551     global thread_selected_re
1552     global library_loaded_re
1553
1554     send_gdb "$command\n"
1555     gdb_expect {
1556         -re "\\^running\r\n\\*running,thread-id=\"\[^\"\]+\"\r\n($library_loaded_re)*($thread_selected_re)?${mi_gdb_prompt}" {
1557             # Note that lack of 'pass' call here -- this works around limitation
1558             # in DejaGNU xfail mechanism. mi-until.exp has this:
1559             #
1560             #     setup_kfail gdb/2104 "*-*-*"
1561             #     mi_execute_to ...
1562             #
1563             # and mi_execute_to uses mi_send_resuming_command.  If we use 'pass' here,
1564             # it will reset kfail, so when the actual test fails, it will be flagged
1565             # as real failure.
1566             return 0
1567         }
1568         -re "\\^error,msg=\"Displaced stepping is only supported in ARM mode\".*" {
1569             unsupported "$test (Thumb mode)"
1570             return -1
1571         }
1572         -re "\\^error,msg=.*" {
1573             fail "$test (MI error)"
1574             return -1
1575         }
1576         -re ".*${mi_gdb_prompt}" {
1577             fail "$test (failed to resume)"
1578             return -1
1579         }
1580         timeout {
1581             fail "$test"
1582             return -1
1583         }
1584     }
1585 }
1586
1587 proc mi_send_resuming_command {command test} {
1588     mi_send_resuming_command_raw -$command $test
1589 }
1590
1591 # Helper to mi_run_inline_test below.
1592 # Sets a temporary breakpoint at LOCATION and runs
1593 # the program using COMMAND.  When the program is stopped
1594 # returns the line at which it.  Returns -1 if line cannot
1595 # be determined.
1596 # Does not check that the line is the same as requested.
1597 # The caller can check itself if required.
1598 proc mi_continue_to_line {location test} {
1599
1600     mi_tbreak $location
1601     mi_send_resuming_command "exec-continue" "run to $location (exec-continue)"
1602     return [mi_get_stop_line $test]
1603 }
1604
1605 # Wait until gdb prints the current line.
1606 proc mi_get_stop_line {test} {
1607
1608   global mi_gdb_prompt
1609   global async
1610
1611   if {$async} {
1612       set prompt_re ""
1613   } else {
1614       set prompt_re "$mi_gdb_prompt$"
1615   }
1616
1617   gdb_expect {
1618       -re ".*line=\"(\[0-9\]*)\".*\r\n$prompt_re" {
1619           return $expect_out(1,string)
1620       }
1621       -re ".*$mi_gdb_prompt" {
1622           fail "wait for stop ($test)"
1623       }
1624       timeout {
1625           fail "wait for stop ($test)"
1626       }
1627   }
1628 }
1629
1630 # Run a MI test embedded in comments in a C file.
1631 # The C file should contain special comments in the following
1632 # three forms:
1633 #
1634 #    /*: BEGIN: testname :*/
1635 #    /*:  <Tcl statements> :*/
1636 #    /*: END: testname :*/
1637 #
1638 # This procedure find the begin and end marker for the requested
1639 # test. Then, a temporary breakpoint is set at the begin
1640 # marker and the program is run (from start).
1641 #
1642 # After that, for each special comment between the begin and end
1643 # marker, the Tcl statements are executed.  It is assumed that
1644 # for each comment, the immediately preceding line is executable
1645 # C statement.  Then, gdb will be single-stepped until that
1646 # preceding C statement is executed, and after that the
1647 # Tcl statements in the comment will be executed.
1648 #
1649 # For example:
1650 #
1651 #     /*: BEGIN: assignment-test :*/
1652 #     v = 10;
1653 #     /*: <Tcl code to check that 'v' is indeed 10 :*/
1654 #     /*: END: assignment-test :*/
1655 #
1656 # The mi_prepare_inline_tests function should be called before
1657 # calling this function.  A given C file can contain several
1658 # inline tests.  The names of the tests must be unique within one
1659 # C file.
1660 #
1661 proc mi_run_inline_test { testcase } {
1662
1663     global mi_gdb_prompt
1664     global hex
1665     global decimal
1666     global fullname_syntax
1667     global mi_autotest_source
1668
1669     set commands [mi_get_inline_test $testcase]
1670
1671     set first 1
1672     set line_now 1
1673
1674     foreach c $commands {
1675         set statements [lindex $c 0]
1676         set line [lindex $c 1]
1677         set line [expr $line-1]
1678
1679         # We want gdb to be stopped at the expression immediately
1680         # before the comment.  If this is the first comment, the
1681         # program is either not started yet or is in some random place,
1682         # so we run it.  For further comments, we might be already
1683         # standing at the right line. If not continue till the
1684         # right line.
1685
1686         if {$first==1} {
1687             # Start the program afresh.
1688             mi_tbreak "$mi_autotest_source:$line"
1689             mi_run_cmd
1690             set line_now [mi_get_stop_line "$testcase: step to $line"]
1691             set first 0
1692         } elseif {$line_now!=$line} {
1693             set line_now [mi_continue_to_line "$mi_autotest_source:$line" "continue to $line"]
1694         }
1695
1696         if {$line_now!=$line} {
1697             fail "$testcase: go to line $line"
1698         }
1699
1700         # We're not at the statement right above the comment.
1701         # Execute that statement so that the comment can test
1702         # the state after the statement is executed.
1703
1704         # Single-step past the line.
1705         if { [mi_send_resuming_command "exec-next" "$testcase: step over $line"] != 0 } {
1706             return -1
1707         }
1708         set line_now [mi_get_stop_line "$testcase: step over $line"]
1709
1710         # We probably want to use 'uplevel' so that statements
1711         # have direct access to global variables that the
1712         # main 'exp' file has set up.  But it's not yet clear,
1713         # will need more experience to be sure.
1714         eval $statements
1715     }
1716 }
1717
1718 proc get_mi_thread_list {name} {
1719   global expect_out
1720
1721   # MI will return a list of thread ids:
1722   #
1723   # -thread-list-ids
1724   # ^done,thread-ids=[thread-id="1",thread-id="2",...],number-of-threads="N"
1725   # (gdb)
1726   mi_gdb_test "-thread-list-ids" \
1727     {.*\^done,thread-ids={(thread-id="[0-9]+"(,)?)+},current-thread-id="[0-9]+",number-of-threads="[0-9]+"} \
1728     "-thread_list_ids ($name)"
1729
1730   set output {}
1731   if {[info exists expect_out(buffer)]} {
1732     set output $expect_out(buffer)
1733   }
1734
1735   set thread_list {}
1736   if {![regexp {thread-ids=\{(thread-id="[0-9]+"(,)?)*\}} $output threads]} {
1737     fail "finding threads in MI output ($name)"
1738   } else {
1739     pass "finding threads in MI output ($name)"
1740
1741     # Make list of console threads
1742     set start [expr {[string first \{ $threads] + 1}]
1743     set end   [expr {[string first \} $threads] - 1}]
1744     set threads [string range $threads $start $end]
1745     foreach thread [split $threads ,] {
1746       if {[scan $thread {thread-id="%d"} num]} {
1747         lappend thread_list $num
1748       }
1749     }
1750   }
1751
1752   return $thread_list
1753 }
1754
1755 # Check that MI and the console know of the same threads.
1756 # Appends NAME to all test names.
1757 proc check_mi_and_console_threads {name} {
1758   global expect_out
1759
1760   mi_gdb_test "-thread-list-ids" \
1761     {.*\^done,thread-ids={(thread-id="[0-9]+"(,)*)+},current-thread-id="[0-9]+",number-of-threads="[0-9]+"} \
1762     "-thread-list-ids ($name)"
1763   set mi_output {}
1764   if {[info exists expect_out(buffer)]} {
1765     set mi_output $expect_out(buffer)
1766   }
1767
1768   # GDB will return a list of thread ids and some more info:
1769   #
1770   # (gdb)
1771   # -interpreter-exec console "info threads"
1772   # ~"  4 Thread 2051 (LWP 7734)  0x401166b1 in __libc_nanosleep () at __libc_nanosleep:-1"
1773   # ~"  3 Thread 1026 (LWP 7733)   () at __libc_nanosleep:-1"
1774   # ~"  2 Thread 2049 (LWP 7732)  0x401411f8 in __poll (fds=0x804bb24, nfds=1, timeout=2000) at ../sysdeps/unix/sysv/linux/poll.c:63"
1775   # ~"* 1 Thread 1024 (LWP 7731)  main (argc=1, argv=0xbfffdd94) at ../../../src/gdb/testsuite/gdb.mi/pthreads.c:160"
1776   # FIXME: kseitz/2002-09-05: Don't use the hack-cli method.
1777   mi_gdb_test "info threads" \
1778     {.*(~".*"[\r\n]*)+.*} \
1779     "info threads ($name)"
1780   set console_output {}
1781   if {[info exists expect_out(buffer)]} {
1782     set console_output $expect_out(buffer)
1783   }
1784
1785   # Make a list of all known threads to console (gdb's thread IDs)
1786   set console_thread_list {}
1787   foreach line [split $console_output \n] {
1788     if {[string index $line 0] == "~"} {
1789       # This is a line from the console; trim off "~", " ", "*", and "\""
1790       set line [string trim $line ~\ \"\*]
1791       if {[scan $line "%d" id] == 1} {
1792         lappend console_thread_list $id
1793       }
1794     }
1795   }
1796
1797   # Now find the result string from MI
1798   set mi_result ""
1799   foreach line [split $mi_output \n] {
1800     if {[string range $line 0 4] == "^done"} {
1801       set mi_result $line
1802     }
1803   }
1804   if {$mi_result == ""} {
1805     fail "finding MI result string ($name)"
1806   } else {
1807     pass "finding MI result string ($name)"
1808   }
1809
1810   # Finally, extract the thread ids and compare them to the console
1811   set num_mi_threads_str ""
1812   if {![regexp {number-of-threads="[0-9]+"} $mi_result num_mi_threads_str]} {
1813     fail "finding number of threads in MI output ($name)"
1814   } else {
1815     pass "finding number of threads in MI output ($name)"
1816
1817     # Extract the number of threads from the MI result
1818     if {![scan $num_mi_threads_str {number-of-threads="%d"} num_mi_threads]} {
1819       fail "got number of threads from MI ($name)"
1820     } else {
1821       pass "got number of threads from MI ($name)"
1822
1823       # Check if MI and console have same number of threads
1824       if {$num_mi_threads != [llength $console_thread_list]} {
1825         fail "console and MI have same number of threads ($name)"
1826       } else {
1827         pass "console and MI have same number of threads ($name)"
1828
1829         # Get MI thread list
1830         set mi_thread_list [get_mi_thread_list $name]
1831
1832         # Check if MI and console have the same threads
1833         set fails 0
1834         foreach ct [lsort $console_thread_list] mt [lsort $mi_thread_list] {
1835           if {$ct != $mt} {
1836             incr fails
1837           }
1838         }
1839         if {$fails > 0} {
1840           fail "MI and console have same threads ($name)"
1841
1842           # Send a list of failures to the log
1843           send_log "Console has thread ids: $console_thread_list\n"
1844           send_log "MI has thread ids: $mi_thread_list\n"
1845         } else {
1846           pass "MI and console have same threads ($name)"
1847         }
1848       }
1849     }
1850   }
1851 }
1852
1853 proc mi_load_shlibs { args } {
1854     if {![is_remote target]} {
1855         return
1856     }
1857
1858     foreach file $args {
1859         gdb_download $file
1860     }
1861
1862     # Even if the target supplies full paths for shared libraries,
1863     # they may not be paths for this system.
1864     mi_gdb_test "set solib-search-path [file dirname [lindex $args 0]]" "\^done" ""
1865 }
1866
1867 proc mi_reverse_list { list } {
1868     if { [llength $list] <= 1 } {
1869         return $list
1870     }
1871     set tail [lrange $list 1 [llength $list]]
1872     set rtail [mi_reverse_list $tail]
1873     lappend rtail [lindex $list 0]
1874     return $rtail
1875 }
1876
1877 proc mi_check_thread_states { xstates test } {
1878     global expect_out
1879     set states [mi_reverse_list $xstates]
1880     set pattern ".*\\^done,threads=\\\["
1881     foreach s $states {
1882         set pattern "${pattern}(.*)state=\"$s\""
1883     }
1884     set pattern "${pattern}(,core=\"\[0-9\]*\")?\\\}\\\].*"
1885
1886     verbose -log "expecting: $pattern"
1887     mi_gdb_test "-thread-info" $pattern $test
1888 }
1889
1890 # Return a list of MI features supported by this gdb.
1891 proc mi_get_features {} {
1892     global expect_out mi_gdb_prompt
1893
1894     send_gdb "-list-features\n"
1895
1896     gdb_expect {
1897         -re "\\^done,features=\\\[(.*)\\\]\r\n$mi_gdb_prompt$" {
1898             regsub -all -- \" $expect_out(1,string) "" features
1899             return [split $features ,]
1900         }
1901         -re ".*\r\n$mi_gdb_prompt$" {
1902             verbose -log "got $expect_out(buffer)"
1903             return ""
1904         }
1905         timeout {
1906             verbose -log "timeout in mi_gdb_prompt"
1907             return ""
1908         }
1909     }
1910 }