1# Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2# 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 3# Free Software Foundation, Inc. 4 5# This program is free software; you can redistribute it and/or modify 6# it under the terms of the GNU General Public License as published by 7# the Free Software Foundation; either version 3 of the License, or 8# (at your option) any later version. 9# 10# This program is distributed in the hope that it will be useful, 11# but WITHOUT ANY WARRANTY; without even the implied warranty of 12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13# GNU General Public License for more details. 14# 15# You should have received a copy of the GNU General Public License 16# along with this program. If not, see <http://www.gnu.org/licenses/>. 17 18# This file was written by Fred Fish. (fnf@cygnus.com) 19 20# Generic gdb subroutines that should work for any target. If these 21# need to be modified for any target, it can be done with a variable 22# or by passing arguments. 23 24if {$tool == ""} { 25 # Tests would fail, logs on get_compiler_info() would be missing. 26 send_error "`site.exp' not found, run `make site.exp'!\n" 27 exit 2 28} 29 30load_lib libgloss.exp 31 32global GDB 33 34if [info exists TOOL_EXECUTABLE] { 35 set GDB $TOOL_EXECUTABLE; 36} 37if ![info exists GDB] { 38 if ![is_remote host] { 39 set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]] 40 } else { 41 set GDB [transform gdb]; 42 } 43} 44verbose "using GDB = $GDB" 2 45 46# GDBFLAGS is available for the user to set on the command line. 47# E.g. make check RUNTESTFLAGS=GDBFLAGS=mumble 48# Testcases may use it to add additional flags, but they must: 49# - append new flags, not overwrite 50# - restore the original value when done 51global GDBFLAGS 52if ![info exists GDBFLAGS] { 53 set GDBFLAGS "" 54} 55verbose "using GDBFLAGS = $GDBFLAGS" 2 56 57# INTERNAL_GDBFLAGS contains flags that the testsuite requires. 58global INTERNAL_GDBFLAGS 59if ![info exists INTERNAL_GDBFLAGS] { 60 set INTERNAL_GDBFLAGS "-nw -nx -data-directory [pwd]/../data-directory" 61} 62 63# The variable gdb_prompt is a regexp which matches the gdb prompt. 64# Set it if it is not already set. 65global gdb_prompt 66if ![info exists gdb_prompt] then { 67 set gdb_prompt "\[(\]gdb\[)\]" 68} 69 70# The variable fullname_syntax_POSIX is a regexp which matches a POSIX 71# absolute path ie. /foo/ 72set fullname_syntax_POSIX {/[^\n]*/} 73# The variable fullname_syntax_UNC is a regexp which matches a Windows 74# UNC path ie. \\D\foo\ 75set fullname_syntax_UNC {\\\\[^\\]+\\[^\n]+\\} 76# The variable fullname_syntax_DOS_CASE is a regexp which matches a 77# particular DOS case that GDB most likely will output 78# ie. \foo\, but don't match \\.*\ 79set fullname_syntax_DOS_CASE {\\[^\\][^\n]*\\} 80# The variable fullname_syntax_DOS is a regexp which matches a DOS path 81# ie. a:\foo\ && a:foo\ 82set fullname_syntax_DOS {[a-zA-Z]:[^\n]*\\} 83# The variable fullname_syntax is a regexp which matches what GDB considers 84# an absolute path. It is currently debatable if the Windows style paths 85# d:foo and \abc should be considered valid as an absolute path. 86# Also, the purpse of this regexp is not to recognize a well formed 87# absolute path, but to say with certainty that a path is absolute. 88set fullname_syntax "($fullname_syntax_POSIX|$fullname_syntax_UNC|$fullname_syntax_DOS_CASE|$fullname_syntax_DOS)" 89 90# Needed for some tests under Cygwin. 91global EXEEXT 92global env 93 94if ![info exists env(EXEEXT)] { 95 set EXEEXT "" 96} else { 97 set EXEEXT $env(EXEEXT) 98} 99 100set octal "\[0-7\]+" 101 102set inferior_exited_re "(\\\[Inferior \[0-9\]+ \\(.*\\) exited)" 103 104### Only procedures should come after this point. 105 106# 107# gdb_version -- extract and print the version number of GDB 108# 109proc default_gdb_version {} { 110 global GDB 111 global INTERNAL_GDBFLAGS GDBFLAGS 112 global gdb_prompt 113 set output [remote_exec host "$GDB $INTERNAL_GDBFLAGS --version"] 114 set tmp [lindex $output 1]; 115 set version "" 116 regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version 117 if ![is_remote host] { 118 clone_output "[which $GDB] version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n" 119 } else { 120 clone_output "$GDB on remote host version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n" 121 } 122} 123 124proc gdb_version { } { 125 return [default_gdb_version]; 126} 127 128# 129# gdb_unload -- unload a file if one is loaded 130# 131 132proc gdb_unload {} { 133 global verbose 134 global GDB 135 global gdb_prompt 136 send_gdb "file\n" 137 gdb_expect 60 { 138 -re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue } 139 -re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue } 140 -re "A program is being debugged already.*Are you sure you want to change the file.*y or n. $" { 141 send_gdb "y\n" 142 exp_continue 143 } 144 -re "Discard symbol table from .*y or n.*$" { 145 send_gdb "y\n" 146 exp_continue 147 } 148 -re "$gdb_prompt $" {} 149 timeout { 150 perror "couldn't unload file in $GDB (timed out)." 151 return -1 152 } 153 } 154} 155 156# Many of the tests depend on setting breakpoints at various places and 157# running until that breakpoint is reached. At times, we want to start 158# with a clean-slate with respect to breakpoints, so this utility proc 159# lets us do this without duplicating this code everywhere. 160# 161 162proc delete_breakpoints {} { 163 global gdb_prompt 164 165 # we need a larger timeout value here or this thing just confuses 166 # itself. May need a better implementation if possible. - guo 167 # 168 send_gdb "delete breakpoints\n" 169 gdb_expect 100 { 170 -re "Delete all breakpoints.*y or n.*$" { 171 send_gdb "y\n"; 172 exp_continue 173 } 174 -re "$gdb_prompt $" { # This happens if there were no breakpoints 175 } 176 timeout { perror "Delete all breakpoints in delete_breakpoints (timeout)" ; return } 177 } 178 send_gdb "info breakpoints\n" 179 gdb_expect 100 { 180 -re "No breakpoints or watchpoints..*$gdb_prompt $" {} 181 -re "$gdb_prompt $" { perror "breakpoints not deleted" ; return } 182 -re "Delete all breakpoints.*or n.*$" { 183 send_gdb "y\n"; 184 exp_continue 185 } 186 timeout { perror "info breakpoints (timeout)" ; return } 187 } 188} 189 190 191# 192# Generic run command. 193# 194# The second pattern below matches up to the first newline *only*. 195# Using ``.*$'' could swallow up output that we attempt to match 196# elsewhere. 197# 198proc gdb_run_cmd {args} { 199 global gdb_prompt 200 201 if [target_info exists gdb_init_command] { 202 send_gdb "[target_info gdb_init_command]\n"; 203 gdb_expect 30 { 204 -re "$gdb_prompt $" { } 205 default { 206 perror "gdb_init_command for target failed"; 207 return; 208 } 209 } 210 } 211 212 if [target_info exists use_gdb_stub] { 213 if [target_info exists gdb,do_reload_on_run] { 214 if { [gdb_reload] != 0 } { 215 return; 216 } 217 send_gdb "continue\n"; 218 gdb_expect 60 { 219 -re "Continu\[^\r\n\]*\[\r\n\]" {} 220 default {} 221 } 222 return; 223 } 224 225 if [target_info exists gdb,start_symbol] { 226 set start [target_info gdb,start_symbol]; 227 } else { 228 set start "start"; 229 } 230 send_gdb "jump *$start\n" 231 set start_attempt 1; 232 while { $start_attempt } { 233 # Cap (re)start attempts at three to ensure that this loop 234 # always eventually fails. Don't worry about trying to be 235 # clever and not send a command when it has failed. 236 if [expr $start_attempt > 3] { 237 perror "Jump to start() failed (retry count exceeded)"; 238 return; 239 } 240 set start_attempt [expr $start_attempt + 1]; 241 gdb_expect 30 { 242 -re "Continuing at \[^\r\n\]*\[\r\n\]" { 243 set start_attempt 0; 244 } 245 -re "No symbol \"_start\" in current.*$gdb_prompt $" { 246 perror "Can't find start symbol to run in gdb_run"; 247 return; 248 } 249 -re "No symbol \"start\" in current.*$gdb_prompt $" { 250 send_gdb "jump *_start\n"; 251 } 252 -re "No symbol.*context.*$gdb_prompt $" { 253 set start_attempt 0; 254 } 255 -re "Line.* Jump anyway.*y or n. $" { 256 send_gdb "y\n" 257 } 258 -re "The program is not being run.*$gdb_prompt $" { 259 if { [gdb_reload] != 0 } { 260 return; 261 } 262 send_gdb "jump *$start\n"; 263 } 264 timeout { 265 perror "Jump to start() failed (timeout)"; 266 return 267 } 268 } 269 } 270 if [target_info exists gdb_stub] { 271 gdb_expect 60 { 272 -re "$gdb_prompt $" { 273 send_gdb "continue\n" 274 } 275 } 276 } 277 return 278 } 279 280 if [target_info exists gdb,do_reload_on_run] { 281 if { [gdb_reload] != 0 } { 282 return; 283 } 284 } 285 send_gdb "run $args\n" 286# This doesn't work quite right yet. 287# Use -notransfer here so that test cases (like chng-sym.exp) 288# may test for additional start-up messages. 289 gdb_expect 60 { 290 -re "The program .* has been started already.*y or n. $" { 291 send_gdb "y\n" 292 exp_continue 293 } 294 -notransfer -re "Starting program: \[^\r\n\]*" {} 295 -notransfer -re "$gdb_prompt $" { 296 # There is no more input expected. 297 } 298 } 299} 300 301# Generic start command. Return 0 if we could start the program, -1 302# if we could not. 303 304proc gdb_start_cmd {args} { 305 global gdb_prompt 306 307 if [target_info exists gdb_init_command] { 308 send_gdb "[target_info gdb_init_command]\n"; 309 gdb_expect 30 { 310 -re "$gdb_prompt $" { } 311 default { 312 perror "gdb_init_command for target failed"; 313 return; 314 } 315 } 316 } 317 318 if [target_info exists use_gdb_stub] { 319 return -1 320 } 321 322 send_gdb "start $args\n" 323 # Use -notransfer here so that test cases (like chng-sym.exp) 324 # may test for additional start-up messages. 325 gdb_expect 60 { 326 -re "The program .* has been started already.*y or n. $" { 327 send_gdb "y\n" 328 exp_continue 329 } 330 -notransfer -re "Starting program: \[^\r\n\]*" { 331 return 0 332 } 333 } 334 return -1 335} 336 337# Set a breakpoint at FUNCTION. If there is an additional argument it is 338# a list of options; the supported options are allow-pending, temporary, 339# and no-message. 340 341proc gdb_breakpoint { function args } { 342 global gdb_prompt 343 global decimal 344 345 set pending_response n 346 if {[lsearch -exact [lindex $args 0] allow-pending] != -1} { 347 set pending_response y 348 } 349 350 set break_command "break" 351 set break_message "Breakpoint" 352 if {[lsearch -exact [lindex $args 0] temporary] != -1} { 353 set break_command "tbreak" 354 set break_message "Temporary breakpoint" 355 } 356 357 set no_message 0 358 if {[lsearch -exact [lindex $args 0] no-message] != -1} { 359 set no_message 1 360 } 361 362 send_gdb "$break_command $function\n" 363 # The first two regexps are what we get with -g, the third is without -g. 364 gdb_expect 30 { 365 -re "$break_message \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {} 366 -re "$break_message \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {} 367 -re "$break_message \[0-9\]* at .*$gdb_prompt $" {} 368 -re "$break_message \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" { 369 if {$pending_response == "n"} { 370 if { $no_message == 0 } { 371 fail "setting breakpoint at $function" 372 } 373 return 0 374 } 375 } 376 -re "Make breakpoint pending.*y or \\\[n\\\]. $" { 377 send_gdb "$pending_response\n" 378 exp_continue 379 } 380 -re "$gdb_prompt $" { 381 if { $no_message == 0 } { 382 fail "setting breakpoint at $function" 383 } 384 return 0 385 } 386 timeout { 387 if { $no_message == 0 } { 388 fail "setting breakpoint at $function (timeout)" 389 } 390 return 0 391 } 392 } 393 return 1; 394} 395 396# Set breakpoint at function and run gdb until it breaks there. 397# Since this is the only breakpoint that will be set, if it stops 398# at a breakpoint, we will assume it is the one we want. We can't 399# just compare to "function" because it might be a fully qualified, 400# single quoted C++ function specifier. If there's an additional argument, 401# pass it to gdb_breakpoint. 402 403proc runto { function args } { 404 global gdb_prompt 405 global decimal 406 407 delete_breakpoints 408 409 if ![gdb_breakpoint $function [lindex $args 0]] { 410 return 0; 411 } 412 413 gdb_run_cmd 414 415 # the "at foo.c:36" output we get with -g. 416 # the "in func" output we get without -g. 417 gdb_expect 30 { 418 -re "Break.* at .*:$decimal.*$gdb_prompt $" { 419 return 1 420 } 421 -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { 422 return 1 423 } 424 -re "The target does not support running in non-stop mode.\r\n$gdb_prompt $" { 425 unsupported "Non-stop mode not supported" 426 return 0 427 } 428 -re ".*A problem internal to GDB has been detected" { 429 fail "running to $function in runto (GDB internal error)" 430 gdb_internal_error_resync 431 return 0 432 } 433 -re "$gdb_prompt $" { 434 fail "running to $function in runto" 435 return 0 436 } 437 eof { 438 fail "running to $function in runto (end of file)" 439 return 0 440 } 441 timeout { 442 fail "running to $function in runto (timeout)" 443 return 0 444 } 445 } 446 return 1 447} 448 449# 450# runto_main -- ask gdb to run until we hit a breakpoint at main. 451# The case where the target uses stubs has to be handled 452# specially--if it uses stubs, assuming we hit 453# breakpoint() and just step out of the function. 454# 455proc runto_main { } { 456 global gdb_prompt 457 global decimal 458 459 if ![target_info exists gdb_stub] { 460 return [runto main] 461 } 462 463 delete_breakpoints 464 465 gdb_step_for_stub; 466 467 return 1 468} 469 470 471### Continue, and expect to hit a breakpoint. 472### Report a pass or fail, depending on whether it seems to have 473### worked. Use NAME as part of the test name; each call to 474### continue_to_breakpoint should use a NAME which is unique within 475### that test file. 476proc gdb_continue_to_breakpoint {name {location_pattern .*}} { 477 global gdb_prompt 478 set full_name "continue to breakpoint: $name" 479 480 send_gdb "continue\n" 481 gdb_expect { 482 -re "Breakpoint .* (at|in) $location_pattern\r\n$gdb_prompt $" { 483 pass $full_name 484 } 485 -re ".*$gdb_prompt $" { 486 fail $full_name 487 } 488 timeout { 489 fail "$full_name (timeout)" 490 } 491 } 492} 493 494 495# gdb_internal_error_resync: 496# 497# Answer the questions GDB asks after it reports an internal error 498# until we get back to a GDB prompt. Decline to quit the debugging 499# session, and decline to create a core file. Return non-zero if the 500# resync succeeds. 501# 502# This procedure just answers whatever questions come up until it sees 503# a GDB prompt; it doesn't require you to have matched the input up to 504# any specific point. However, it only answers questions it sees in 505# the output itself, so if you've matched a question, you had better 506# answer it yourself before calling this. 507# 508# You can use this function thus: 509# 510# gdb_expect { 511# ... 512# -re ".*A problem internal to GDB has been detected" { 513# gdb_internal_error_resync 514# } 515# ... 516# } 517# 518proc gdb_internal_error_resync {} { 519 global gdb_prompt 520 521 set count 0 522 while {$count < 10} { 523 gdb_expect { 524 -re "Quit this debugging session\\? \\(y or n\\) $" { 525 send_gdb "n\n" 526 incr count 527 } 528 -re "Create a core file of GDB\\? \\(y or n\\) $" { 529 send_gdb "n\n" 530 incr count 531 } 532 -re "$gdb_prompt $" { 533 # We're resynchronized. 534 return 1 535 } 536 timeout { 537 perror "Could not resync from internal error (timeout)" 538 return 0 539 } 540 } 541 } 542 perror "Could not resync from internal error (resync count exceeded)" 543 return 0 544} 545 546 547# gdb_test_multiple COMMAND MESSAGE EXPECT_ARGUMENTS 548# Send a command to gdb; test the result. 549# 550# COMMAND is the command to execute, send to GDB with send_gdb. If 551# this is the null string no command is sent. 552# MESSAGE is a message to be printed with the built-in failure patterns 553# if one of them matches. If MESSAGE is empty COMMAND will be used. 554# EXPECT_ARGUMENTS will be fed to expect in addition to the standard 555# patterns. Pattern elements will be evaluated in the caller's 556# context; action elements will be executed in the caller's context. 557# Unlike patterns for gdb_test, these patterns should generally include 558# the final newline and prompt. 559# 560# Returns: 561# 1 if the test failed, according to a built-in failure pattern 562# 0 if only user-supplied patterns matched 563# -1 if there was an internal error. 564# 565# You can use this function thus: 566# 567# gdb_test_multiple "print foo" "test foo" { 568# -re "expected output 1" { 569# pass "print foo" 570# } 571# -re "expected output 2" { 572# fail "print foo" 573# } 574# } 575# 576# The standard patterns, such as "Inferior exited..." and "A problem 577# ...", all being implicitly appended to that list. 578# 579proc gdb_test_multiple { command message user_code } { 580 global verbose 581 global gdb_prompt 582 global GDB 583 global inferior_exited_re 584 upvar timeout timeout 585 upvar expect_out expect_out 586 587 if { $message == "" } { 588 set message $command 589 } 590 591 if [string match "*\[\r\n\]" $command] { 592 error "Invalid trailing newline in \"$message\" test" 593 } 594 595 # TCL/EXPECT WART ALERT 596 # Expect does something very strange when it receives a single braced 597 # argument. It splits it along word separators and performs substitutions. 598 # This means that { "[ab]" } is evaluated as "[ab]", but { "\[ab\]" } is 599 # evaluated as "\[ab\]". But that's not how TCL normally works; inside a 600 # double-quoted list item, "\[ab\]" is just a long way of representing 601 # "[ab]", because the backslashes will be removed by lindex. 602 603 # Unfortunately, there appears to be no easy way to duplicate the splitting 604 # that expect will do from within TCL. And many places make use of the 605 # "\[0-9\]" construct, so we need to support that; and some places make use 606 # of the "[func]" construct, so we need to support that too. In order to 607 # get this right we have to substitute quoted list elements differently 608 # from braced list elements. 609 610 # We do this roughly the same way that Expect does it. We have to use two 611 # lists, because if we leave unquoted newlines in the argument to uplevel 612 # they'll be treated as command separators, and if we escape newlines 613 # we mangle newlines inside of command blocks. This assumes that the 614 # input doesn't contain a pattern which contains actual embedded newlines 615 # at this point! 616 617 regsub -all {\n} ${user_code} { } subst_code 618 set subst_code [uplevel list $subst_code] 619 620 set processed_code "" 621 set patterns "" 622 set expecting_action 0 623 set expecting_arg 0 624 foreach item $user_code subst_item $subst_code { 625 if { $item == "-n" || $item == "-notransfer" || $item == "-nocase" } { 626 lappend processed_code $item 627 continue 628 } 629 if { $item == "-indices" || $item == "-re" || $item == "-ex" } { 630 lappend processed_code $item 631 continue 632 } 633 if { $item == "-timeout" } { 634 set expecting_arg 1 635 lappend processed_code $item 636 continue 637 } 638 if { $expecting_arg } { 639 set expecting_arg 0 640 lappend processed_code $item 641 continue 642 } 643 if { $expecting_action } { 644 lappend processed_code "uplevel [list $item]" 645 set expecting_action 0 646 # Cosmetic, no effect on the list. 647 append processed_code "\n" 648 continue 649 } 650 set expecting_action 1 651 lappend processed_code $subst_item 652 if {$patterns != ""} { 653 append patterns "; " 654 } 655 append patterns "\"$subst_item\"" 656 } 657 658 # Also purely cosmetic. 659 regsub -all {\r} $patterns {\\r} patterns 660 regsub -all {\n} $patterns {\\n} patterns 661 662 if $verbose>2 then { 663 send_user "Sending \"$command\" to gdb\n" 664 send_user "Looking to match \"$patterns\"\n" 665 send_user "Message is \"$message\"\n" 666 } 667 668 set result -1 669 set string "${command}\n"; 670 if { $command != "" } { 671 while { "$string" != "" } { 672 set foo [string first "\n" "$string"]; 673 set len [string length "$string"]; 674 if { $foo < [expr $len - 1] } { 675 set str [string range "$string" 0 $foo]; 676 if { [send_gdb "$str"] != "" } { 677 global suppress_flag; 678 679 if { ! $suppress_flag } { 680 perror "Couldn't send $command to GDB."; 681 } 682 fail "$message"; 683 return $result; 684 } 685 # since we're checking if each line of the multi-line 686 # command are 'accepted' by GDB here, 687 # we need to set -notransfer expect option so that 688 # command output is not lost for pattern matching 689 # - guo 690 gdb_expect 2 { 691 -notransfer -re "\[\r\n\]" { verbose "partial: match" 3 } 692 timeout { verbose "partial: timeout" 3 } 693 } 694 set string [string range "$string" [expr $foo + 1] end]; 695 } else { 696 break; 697 } 698 } 699 if { "$string" != "" } { 700 if { [send_gdb "$string"] != "" } { 701 global suppress_flag; 702 703 if { ! $suppress_flag } { 704 perror "Couldn't send $command to GDB."; 705 } 706 fail "$message"; 707 return $result; 708 } 709 } 710 } 711 712 if [target_info exists gdb,timeout] { 713 set tmt [target_info gdb,timeout]; 714 } else { 715 if [info exists timeout] { 716 set tmt $timeout; 717 } else { 718 global timeout; 719 if [info exists timeout] { 720 set tmt $timeout; 721 } else { 722 set tmt 60; 723 } 724 } 725 } 726 727 set code { 728 -re ".*A problem internal to GDB has been detected" { 729 fail "$message (GDB internal error)" 730 gdb_internal_error_resync 731 } 732 -re "\\*\\*\\* DOSEXIT code.*" { 733 if { $message != "" } { 734 fail "$message"; 735 } 736 gdb_suppress_entire_file "GDB died"; 737 set result -1; 738 } 739 } 740 append code $processed_code 741 append code { 742 -re "Ending remote debugging.*$gdb_prompt $" { 743 if ![isnative] then { 744 warning "Can`t communicate to remote target." 745 } 746 gdb_exit 747 gdb_start 748 set result -1 749 } 750 -re "Undefined\[a-z\]* command:.*$gdb_prompt $" { 751 perror "Undefined command \"$command\"." 752 fail "$message" 753 set result 1 754 } 755 -re "Ambiguous command.*$gdb_prompt $" { 756 perror "\"$command\" is not a unique command name." 757 fail "$message" 758 set result 1 759 } 760 -re "$inferior_exited_re with code \[0-9\]+.*$gdb_prompt $" { 761 if ![string match "" $message] then { 762 set errmsg "$message (the program exited)" 763 } else { 764 set errmsg "$command (the program exited)" 765 } 766 fail "$errmsg" 767 set result -1 768 } 769 -re "$inferior_exited_re normally.*$gdb_prompt $" { 770 if ![string match "" $message] then { 771 set errmsg "$message (the program exited)" 772 } else { 773 set errmsg "$command (the program exited)" 774 } 775 fail "$errmsg" 776 set result -1 777 } 778 -re "The program is not being run.*$gdb_prompt $" { 779 if ![string match "" $message] then { 780 set errmsg "$message (the program is no longer running)" 781 } else { 782 set errmsg "$command (the program is no longer running)" 783 } 784 fail "$errmsg" 785 set result -1 786 } 787 -re "\r\n$gdb_prompt $" { 788 if ![string match "" $message] then { 789 fail "$message" 790 } 791 set result 1 792 } 793 "<return>" { 794 send_gdb "\n" 795 perror "Window too small." 796 fail "$message" 797 set result -1 798 } 799 -re "\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " { 800 send_gdb "n\n" 801 gdb_expect -re "$gdb_prompt $" 802 fail "$message (got interactive prompt)" 803 set result -1 804 } 805 -re "\\\[0\\\] cancel\r\n\\\[1\\\] all.*\r\n> $" { 806 send_gdb "0\n" 807 gdb_expect -re "$gdb_prompt $" 808 fail "$message (got breakpoint menu)" 809 set result -1 810 } 811 eof { 812 perror "Process no longer exists" 813 if { $message != "" } { 814 fail "$message" 815 } 816 return -1 817 } 818 full_buffer { 819 perror "internal buffer is full." 820 fail "$message" 821 set result -1 822 } 823 timeout { 824 if ![string match "" $message] then { 825 fail "$message (timeout)" 826 } 827 set result 1 828 } 829 } 830 831 set result 0 832 set code [catch {gdb_expect $tmt $code} string] 833 if {$code == 1} { 834 global errorInfo errorCode; 835 return -code error -errorinfo $errorInfo -errorcode $errorCode $string 836 } elseif {$code == 2} { 837 return -code return $string 838 } elseif {$code == 3} { 839 return 840 } elseif {$code > 4} { 841 return -code $code $string 842 } 843 return $result 844} 845 846# gdb_test COMMAND PATTERN MESSAGE QUESTION RESPONSE 847# Send a command to gdb; test the result. 848# 849# COMMAND is the command to execute, send to GDB with send_gdb. If 850# this is the null string no command is sent. 851# PATTERN is the pattern to match for a PASS, and must NOT include 852# the \r\n sequence immediately before the gdb prompt. 853# MESSAGE is an optional message to be printed. If this is 854# omitted, then the pass/fail messages use the command string as the 855# message. (If this is the empty string, then sometimes we don't 856# call pass or fail at all; I don't understand this at all.) 857# QUESTION is a question GDB may ask in response to COMMAND, like 858# "are you sure?" 859# RESPONSE is the response to send if QUESTION appears. 860# 861# Returns: 862# 1 if the test failed, 863# 0 if the test passes, 864# -1 if there was an internal error. 865# 866proc gdb_test { args } { 867 global verbose 868 global gdb_prompt 869 global GDB 870 upvar timeout timeout 871 872 if [llength $args]>2 then { 873 set message [lindex $args 2] 874 } else { 875 set message [lindex $args 0] 876 } 877 set command [lindex $args 0] 878 set pattern [lindex $args 1] 879 880 if [llength $args]==5 { 881 set question_string [lindex $args 3]; 882 set response_string [lindex $args 4]; 883 } else { 884 set question_string "^FOOBAR$" 885 } 886 887 return [gdb_test_multiple $command $message { 888 -re "\[\r\n\]*($pattern)\[\r\n\]+$gdb_prompt $" { 889 if ![string match "" $message] then { 890 pass "$message" 891 } 892 } 893 -re "(${question_string})$" { 894 send_gdb "$response_string\n"; 895 exp_continue; 896 } 897 }] 898} 899 900# gdb_test_no_output COMMAND MESSAGE 901# Send a command to GDB and verify that this command generated no output. 902# 903# See gdb_test_multiple for a description of the COMMAND and MESSAGE 904# parameters. If MESSAGE is ommitted, then COMMAND will be used as 905# the message. (If MESSAGE is the empty string, then sometimes we do not 906# call pass or fail at all; I don't understand this at all.) 907 908proc gdb_test_no_output { args } { 909 global gdb_prompt 910 set command [lindex $args 0] 911 if [llength $args]>1 then { 912 set message [lindex $args 1] 913 } else { 914 set message $command 915 } 916 917 set command_regex [string_to_regexp $command] 918 gdb_test_multiple $command $message { 919 -re "^$command_regex\r\n$gdb_prompt $" { 920 if ![string match "" $message] then { 921 pass "$message" 922 } 923 } 924 } 925} 926 927# Send a command and then wait for a sequence of outputs. 928# This is useful when the sequence is long and contains ".*", a single 929# regexp to match the entire output can get a timeout much easier. 930# 931# COMMAND is the command to send. 932# TEST_NAME is passed to pass/fail. COMMAND is used if TEST_NAME is "". 933# EXPECTED_OUTPUT_LIST is a list of regexps of expected output, which are 934# processed in order, and all must be present in the output. 935# 936# It is unnecessary to specify ".*" at the beginning or end of any regexp, 937# there is an implicit ".*" between each element of EXPECTED_OUTPUT_LIST. 938# There is also an implicit ".*" between the last regexp and the gdb prompt. 939# 940# Like gdb_test and gdb_test_multiple, the output is expected to end with the 941# gdb prompt, which must not be specified in EXPECTED_OUTPUT_LIST. 942# 943# Returns: 944# 1 if the test failed, 945# 0 if the test passes, 946# -1 if there was an internal error. 947 948proc gdb_test_sequence { command test_name expected_output_list } { 949 global gdb_prompt 950 if { $test_name == "" } { 951 set test_name $command 952 } 953 lappend expected_output_list ""; # implicit ".*" before gdb prompt 954 send_gdb "$command\n" 955 return [gdb_expect_list $test_name "$gdb_prompt $" $expected_output_list] 956} 957 958 959# Test that a command gives an error. For pass or fail, return 960# a 1 to indicate that more tests can proceed. However a timeout 961# is a serious error, generates a special fail message, and causes 962# a 0 to be returned to indicate that more tests are likely to fail 963# as well. 964 965proc test_print_reject { args } { 966 global gdb_prompt 967 global verbose 968 969 if [llength $args]==2 then { 970 set expectthis [lindex $args 1] 971 } else { 972 set expectthis "should never match this bogus string" 973 } 974 set sendthis [lindex $args 0] 975 if $verbose>2 then { 976 send_user "Sending \"$sendthis\" to gdb\n" 977 send_user "Looking to match \"$expectthis\"\n" 978 } 979 send_gdb "$sendthis\n" 980 #FIXME: Should add timeout as parameter. 981 gdb_expect { 982 -re "A .* in expression.*\\.*$gdb_prompt $" { 983 pass "reject $sendthis" 984 return 1 985 } 986 -re "Invalid syntax in expression.*$gdb_prompt $" { 987 pass "reject $sendthis" 988 return 1 989 } 990 -re "Junk after end of expression.*$gdb_prompt $" { 991 pass "reject $sendthis" 992 return 1 993 } 994 -re "Invalid number.*$gdb_prompt $" { 995 pass "reject $sendthis" 996 return 1 997 } 998 -re "Invalid character constant.*$gdb_prompt $" { 999 pass "reject $sendthis" 1000 return 1 1001 } 1002 -re "No symbol table is loaded.*$gdb_prompt $" { 1003 pass "reject $sendthis" 1004 return 1 1005 } 1006 -re "No symbol .* in current context.*$gdb_prompt $" { 1007 pass "reject $sendthis" 1008 return 1 1009 } 1010 -re "Unmatched single quote.*$gdb_prompt $" { 1011 pass "reject $sendthis" 1012 return 1 1013 } 1014 -re "A character constant must contain at least one character.*$gdb_prompt $" { 1015 pass "reject $sendthis" 1016 return 1 1017 } 1018 -re "$expectthis.*$gdb_prompt $" { 1019 pass "reject $sendthis" 1020 return 1 1021 } 1022 -re ".*$gdb_prompt $" { 1023 fail "reject $sendthis" 1024 return 1 1025 } 1026 default { 1027 fail "reject $sendthis (eof or timeout)" 1028 return 0 1029 } 1030 } 1031} 1032 1033# Given an input string, adds backslashes as needed to create a 1034# regexp that will match the string. 1035 1036proc string_to_regexp {str} { 1037 set result $str 1038 regsub -all {[]*+.|()^$\[\\]} $str {\\&} result 1039 return $result 1040} 1041 1042# Same as gdb_test, but the second parameter is not a regexp, 1043# but a string that must match exactly. 1044 1045proc gdb_test_exact { args } { 1046 upvar timeout timeout 1047 1048 set command [lindex $args 0] 1049 1050 # This applies a special meaning to a null string pattern. Without 1051 # this, "$pattern\r\n$gdb_prompt $" will match anything, including error 1052 # messages from commands that should have no output except a new 1053 # prompt. With this, only results of a null string will match a null 1054 # string pattern. 1055 1056 set pattern [lindex $args 1] 1057 if [string match $pattern ""] { 1058 set pattern [string_to_regexp [lindex $args 0]] 1059 } else { 1060 set pattern [string_to_regexp [lindex $args 1]] 1061 } 1062 1063 # It is most natural to write the pattern argument with only 1064 # embedded \n's, especially if you are trying to avoid Tcl quoting 1065 # problems. But gdb_expect really wants to see \r\n in patterns. So 1066 # transform the pattern here. First transform \r\n back to \n, in 1067 # case some users of gdb_test_exact already do the right thing. 1068 regsub -all "\r\n" $pattern "\n" pattern 1069 regsub -all "\n" $pattern "\r\n" pattern 1070 if [llength $args]==3 then { 1071 set message [lindex $args 2] 1072 } else { 1073 set message $command 1074 } 1075 1076 return [gdb_test $command $pattern $message] 1077} 1078 1079# Wrapper around gdb_test_multiple that looks for a list of expected 1080# output elements, but which can appear in any order. 1081# CMD is the gdb command. 1082# NAME is the name of the test. 1083# ELM_FIND_REGEXP specifies how to partition the output into elements to 1084# compare. 1085# ELM_EXTRACT_REGEXP specifies the part of ELM_FIND_REGEXP to compare. 1086# RESULT_MATCH_LIST is a list of exact matches for each expected element. 1087# All elements of RESULT_MATCH_LIST must appear for the test to pass. 1088# 1089# A typical use of ELM_FIND_REGEXP/ELM_EXTRACT_REGEXP is to extract one line 1090# of text per element and then strip trailing \r\n's. 1091# Example: 1092# gdb_test_list_exact "foo" "bar" \ 1093# {[^\r\n]+[\r\n]+} \ 1094# {[^\r\n]+} \ 1095# { \ 1096# {expected result 1} \ 1097# {expected result 2} \ 1098# } 1099 1100proc gdb_test_list_exact { cmd name elm_find_regexp elm_extract_regexp result_match_list } { 1101 global gdb_prompt 1102 1103 set matches [lsort $result_match_list] 1104 set seen {} 1105 gdb_test_multiple $cmd $name { 1106 "$cmd\[\r\n\]" { exp_continue } 1107 -re $elm_find_regexp { 1108 set str $expect_out(0,string) 1109 verbose -log "seen: $str" 3 1110 regexp -- $elm_extract_regexp $str elm_seen 1111 verbose -log "extracted: $elm_seen" 3 1112 lappend seen $elm_seen 1113 exp_continue 1114 } 1115 -re "$gdb_prompt $" { 1116 set failed "" 1117 foreach got [lsort $seen] have $matches { 1118 if {![string equal $got $have]} { 1119 set failed $have 1120 break 1121 } 1122 } 1123 if {[string length $failed] != 0} { 1124 fail "$name ($failed not found)" 1125 } else { 1126 pass $name 1127 } 1128 } 1129 } 1130} 1131 1132proc gdb_reinitialize_dir { subdir } { 1133 global gdb_prompt 1134 1135 if [is_remote host] { 1136 return ""; 1137 } 1138 send_gdb "dir\n" 1139 gdb_expect 60 { 1140 -re "Reinitialize source path to empty.*y or n. " { 1141 send_gdb "y\n" 1142 gdb_expect 60 { 1143 -re "Source directories searched.*$gdb_prompt $" { 1144 send_gdb "dir $subdir\n" 1145 gdb_expect 60 { 1146 -re "Source directories searched.*$gdb_prompt $" { 1147 verbose "Dir set to $subdir" 1148 } 1149 -re "$gdb_prompt $" { 1150 perror "Dir \"$subdir\" failed." 1151 } 1152 } 1153 } 1154 -re "$gdb_prompt $" { 1155 perror "Dir \"$subdir\" failed." 1156 } 1157 } 1158 } 1159 -re "$gdb_prompt $" { 1160 perror "Dir \"$subdir\" failed." 1161 } 1162 } 1163} 1164 1165# 1166# gdb_exit -- exit the GDB, killing the target program if necessary 1167# 1168proc default_gdb_exit {} { 1169 global GDB 1170 global INTERNAL_GDBFLAGS GDBFLAGS 1171 global verbose 1172 global gdb_spawn_id; 1173 1174 gdb_stop_suppressing_tests; 1175 1176 if ![info exists gdb_spawn_id] { 1177 return; 1178 } 1179 1180 verbose "Quitting $GDB $INTERNAL_GDBFLAGS $GDBFLAGS" 1181 1182 if { [is_remote host] && [board_info host exists fileid] } { 1183 send_gdb "quit\n"; 1184 gdb_expect 10 { 1185 -re "y or n" { 1186 send_gdb "y\n"; 1187 exp_continue; 1188 } 1189 -re "DOSEXIT code" { } 1190 default { } 1191 } 1192 } 1193 1194 if ![is_remote host] { 1195 remote_close host; 1196 } 1197 unset gdb_spawn_id 1198} 1199 1200# Load a file into the debugger. 1201# The return value is 0 for success, -1 for failure. 1202# 1203# This procedure also set the global variable GDB_FILE_CMD_DEBUG_INFO 1204# to one of these values: 1205# 1206# debug file was loaded successfully and has debug information 1207# nodebug file was loaded successfully and has no debug information 1208# fail file was not loaded 1209# 1210# I tried returning this information as part of the return value, 1211# but ran into a mess because of the many re-implementations of 1212# gdb_load in config/*.exp. 1213# 1214# TODO: gdb.base/sepdebug.exp and gdb.stabs/weird.exp might be able to use 1215# this if they can get more information set. 1216 1217proc gdb_file_cmd { arg } { 1218 global gdb_prompt 1219 global verbose 1220 global GDB 1221 global last_loaded_file 1222 1223 set last_loaded_file $arg 1224 1225 # Set whether debug info was found. 1226 # Default to "fail". 1227 global gdb_file_cmd_debug_info 1228 set gdb_file_cmd_debug_info "fail" 1229 1230 if [is_remote host] { 1231 set arg [remote_download host $arg] 1232 if { $arg == "" } { 1233 perror "download failed" 1234 return -1 1235 } 1236 } 1237 1238 # The file command used to kill the remote target. For the benefit 1239 # of the testsuite, preserve this behavior. 1240 send_gdb "kill\n" 1241 gdb_expect 120 { 1242 -re "Kill the program being debugged. .y or n. $" { 1243 send_gdb "y\n" 1244 verbose "\t\tKilling previous program being debugged" 1245 exp_continue 1246 } 1247 -re "$gdb_prompt $" { 1248 # OK. 1249 } 1250 } 1251 1252 send_gdb "file $arg\n" 1253 gdb_expect 120 { 1254 -re "Reading symbols from.*no debugging symbols found.*done.*$gdb_prompt $" { 1255 verbose "\t\tLoaded $arg into the $GDB with no debugging symbols" 1256 set gdb_file_cmd_debug_info "nodebug" 1257 return 0 1258 } 1259 -re "Reading symbols from.*done.*$gdb_prompt $" { 1260 verbose "\t\tLoaded $arg into the $GDB" 1261 set gdb_file_cmd_debug_info "debug" 1262 return 0 1263 } 1264 -re "Load new symbol table from \".*\".*y or n. $" { 1265 send_gdb "y\n" 1266 gdb_expect 120 { 1267 -re "Reading symbols from.*done.*$gdb_prompt $" { 1268 verbose "\t\tLoaded $arg with new symbol table into $GDB" 1269 set gdb_file_cmd_debug_info "debug" 1270 return 0 1271 } 1272 timeout { 1273 perror "(timeout) Couldn't load $arg, other program already loaded." 1274 return -1 1275 } 1276 } 1277 } 1278 -re "No such file or directory.*$gdb_prompt $" { 1279 perror "($arg) No such file or directory" 1280 return -1 1281 } 1282 -re "$gdb_prompt $" { 1283 perror "couldn't load $arg into $GDB." 1284 return -1 1285 } 1286 timeout { 1287 perror "couldn't load $arg into $GDB (timed out)." 1288 return -1 1289 } 1290 eof { 1291 # This is an attempt to detect a core dump, but seems not to 1292 # work. Perhaps we need to match .* followed by eof, in which 1293 # gdb_expect does not seem to have a way to do that. 1294 perror "couldn't load $arg into $GDB (end of file)." 1295 return -1 1296 } 1297 } 1298} 1299 1300# 1301# start gdb -- start gdb running, default procedure 1302# 1303# When running over NFS, particularly if running many simultaneous 1304# tests on different hosts all using the same server, things can 1305# get really slow. Give gdb at least 3 minutes to start up. 1306# 1307proc default_gdb_start { } { 1308 global verbose 1309 global GDB 1310 global INTERNAL_GDBFLAGS GDBFLAGS 1311 global gdb_prompt 1312 global timeout 1313 global gdb_spawn_id; 1314 1315 gdb_stop_suppressing_tests; 1316 1317 verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS" 1318 1319 if [info exists gdb_spawn_id] { 1320 return 0; 1321 } 1322 1323 if ![is_remote host] { 1324 if { [which $GDB] == 0 } then { 1325 perror "$GDB does not exist." 1326 exit 1 1327 } 1328 } 1329 set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]; 1330 if { $res < 0 || $res == "" } { 1331 perror "Spawning $GDB failed." 1332 return 1; 1333 } 1334 gdb_expect 360 { 1335 -re "\[\r\n\]$gdb_prompt $" { 1336 verbose "GDB initialized." 1337 } 1338 -re "$gdb_prompt $" { 1339 perror "GDB never initialized." 1340 return -1 1341 } 1342 timeout { 1343 perror "(timeout) GDB never initialized after 10 seconds." 1344 remote_close host; 1345 return -1 1346 } 1347 } 1348 set gdb_spawn_id -1; 1349 # force the height to "unlimited", so no pagers get used 1350 1351 send_gdb "set height 0\n" 1352 gdb_expect 10 { 1353 -re "$gdb_prompt $" { 1354 verbose "Setting height to 0." 2 1355 } 1356 timeout { 1357 warning "Couldn't set the height to 0" 1358 } 1359 } 1360 # force the width to "unlimited", so no wraparound occurs 1361 send_gdb "set width 0\n" 1362 gdb_expect 10 { 1363 -re "$gdb_prompt $" { 1364 verbose "Setting width to 0." 2 1365 } 1366 timeout { 1367 warning "Couldn't set the width to 0." 1368 } 1369 } 1370 return 0; 1371} 1372 1373# Examine the output of compilation to determine whether compilation 1374# failed or not. If it failed determine whether it is due to missing 1375# compiler or due to compiler error. Report pass, fail or unsupported 1376# as appropriate 1377 1378proc gdb_compile_test {src output} { 1379 if { $output == "" } { 1380 pass "compilation [file tail $src]" 1381 } elseif { [regexp {^[a-zA-Z_0-9]+: Can't find [^ ]+\.$} $output] } { 1382 unsupported "compilation [file tail $src]" 1383 } elseif { [regexp {.*: command not found[\r|\n]*$} $output] } { 1384 unsupported "compilation [file tail $src]" 1385 } elseif { [regexp {.*: [^\r\n]*compiler not installed[^\r\n]*[\r|\n]*$} $output] } { 1386 unsupported "compilation [file tail $src]" 1387 } else { 1388 verbose -log "compilation failed: $output" 2 1389 fail "compilation [file tail $src]" 1390 } 1391} 1392 1393# Return a 1 for configurations for which we don't even want to try to 1394# test C++. 1395 1396proc skip_cplus_tests {} { 1397 if { [istarget "h8300-*-*"] } { 1398 return 1 1399 } 1400 1401 # The C++ IO streams are too large for HC11/HC12 and are thus not 1402 # available. The gdb C++ tests use them and don't compile. 1403 if { [istarget "m6811-*-*"] } { 1404 return 1 1405 } 1406 if { [istarget "m6812-*-*"] } { 1407 return 1 1408 } 1409 return 0 1410} 1411 1412# Return a 1 for configurations for which don't have both C++ and the STL. 1413 1414proc skip_stl_tests {} { 1415 # Symbian supports the C++ language, but the STL is missing 1416 # (both headers and libraries). 1417 if { [istarget "arm*-*-symbianelf*"] } { 1418 return 1 1419 } 1420 1421 return [skip_cplus_tests] 1422} 1423 1424# Return a 1 if I don't even want to try to test FORTRAN. 1425 1426proc skip_fortran_tests {} { 1427 return 0 1428} 1429 1430# Return a 1 if I don't even want to try to test ada. 1431 1432proc skip_ada_tests {} { 1433 return 0 1434} 1435 1436# Return a 1 if I don't even want to try to test java. 1437 1438proc skip_java_tests {} { 1439 return 0 1440} 1441 1442# Return a 1 for configurations that do not support Python scripting. 1443 1444proc skip_python_tests {} { 1445 global gdb_prompt 1446 gdb_test_multiple "python print 'test'" "verify python support" { 1447 -re "not supported.*$gdb_prompt $" { 1448 unsupported "Python support is disabled." 1449 return 1 1450 } 1451 -re "$gdb_prompt $" {} 1452 } 1453 1454 return 0 1455} 1456 1457# Return a 1 if we should skip shared library tests. 1458 1459proc skip_shlib_tests {} { 1460 # Run the shared library tests on native systems. 1461 if {[isnative]} { 1462 return 0 1463 } 1464 1465 # An abbreviated list of remote targets where we should be able to 1466 # run shared library tests. 1467 if {([istarget *-*-linux*] 1468 || [istarget *-*-*bsd*] 1469 || [istarget *-*-solaris2*] 1470 || [istarget arm*-*-symbianelf*] 1471 || [istarget *-*-mingw*] 1472 || [istarget *-*-cygwin*] 1473 || [istarget *-*-pe*])} { 1474 return 0 1475 } 1476 1477 return 1 1478} 1479 1480# Return 1 if target is ILP32. 1481# This cannot be decided simply from looking at the target string, 1482# as it might depend on externally passed compiler options like -m64. 1483proc is_ilp32_target {} { 1484 global is_ilp32_target_saved 1485 1486 # Use the cached value, if it exists. Cache value per "board" to handle 1487 # runs with multiple options (e.g. unix/{-m32,-64}) correctly. 1488 set me "is_ilp32_target" 1489 set board [target_info name] 1490 if [info exists is_ilp32_target_saved($board)] { 1491 verbose "$me: returning saved $is_ilp32_target_saved($board)" 2 1492 return $is_ilp32_target_saved($board) 1493 } 1494 1495 1496 set src ilp32[pid].c 1497 set obj ilp32[pid].o 1498 1499 set f [open $src "w"] 1500 puts $f "int dummy\[sizeof (int) == 4" 1501 puts $f " && sizeof (void *) == 4" 1502 puts $f " && sizeof (long) == 4 ? 1 : -1\];" 1503 close $f 1504 1505 verbose "$me: compiling testfile $src" 2 1506 set lines [gdb_compile $src $obj object {quiet}] 1507 file delete $src 1508 file delete $obj 1509 1510 if ![string match "" $lines] then { 1511 verbose "$me: testfile compilation failed, returning 0" 2 1512 return [set is_ilp32_target_saved($board) 0] 1513 } 1514 1515 verbose "$me: returning 1" 2 1516 return [set is_ilp32_target_saved($board) 1] 1517} 1518 1519# Return 1 if target is LP64. 1520# This cannot be decided simply from looking at the target string, 1521# as it might depend on externally passed compiler options like -m64. 1522proc is_lp64_target {} { 1523 global is_lp64_target_saved 1524 1525 # Use the cached value, if it exists. Cache value per "board" to handle 1526 # runs with multiple options (e.g. unix/{-m32,-64}) correctly. 1527 set me "is_lp64_target" 1528 set board [target_info name] 1529 if [info exists is_lp64_target_saved($board)] { 1530 verbose "$me: returning saved $is_lp64_target_saved($board)" 2 1531 return $is_lp64_target_saved($board) 1532 } 1533 1534 set src lp64[pid].c 1535 set obj lp64[pid].o 1536 1537 set f [open $src "w"] 1538 puts $f "int dummy\[sizeof (int) == 4" 1539 puts $f " && sizeof (void *) == 8" 1540 puts $f " && sizeof (long) == 8 ? 1 : -1\];" 1541 close $f 1542 1543 verbose "$me: compiling testfile $src" 2 1544 set lines [gdb_compile $src $obj object {quiet}] 1545 file delete $src 1546 file delete $obj 1547 1548 if ![string match "" $lines] then { 1549 verbose "$me: testfile compilation failed, returning 0" 2 1550 return [set is_lp64_target_saved($board) 0] 1551 } 1552 1553 verbose "$me: returning 1" 2 1554 return [set is_lp64_target_saved($board) 1] 1555} 1556 1557# Run a test on the target to see if it supports vmx hardware. Return 0 if so, 1558# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite. 1559 1560proc skip_altivec_tests {} { 1561 global skip_vmx_tests_saved 1562 global srcdir subdir gdb_prompt inferior_exited_re 1563 1564 # Use the cached value, if it exists. 1565 set me "skip_altivec_tests" 1566 if [info exists skip_vmx_tests_saved] { 1567 verbose "$me: returning saved $skip_vmx_tests_saved" 2 1568 return $skip_vmx_tests_saved 1569 } 1570 1571 # Some simulators are known to not support VMX instructions. 1572 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } { 1573 verbose "$me: target known to not support VMX, returning 1" 2 1574 return [set skip_vmx_tests_saved 1] 1575 } 1576 1577 # Make sure we have a compiler that understands altivec. 1578 set compile_flags {debug nowarnings} 1579 if [get_compiler_info not-used] { 1580 warning "Could not get compiler info" 1581 return 1 1582 } 1583 if [test_compiler_info gcc*] { 1584 set compile_flags "$compile_flags additional_flags=-maltivec" 1585 } elseif [test_compiler_info xlc*] { 1586 set compile_flags "$compile_flags additional_flags=-qaltivec" 1587 } else { 1588 verbose "Could not compile with altivec support, returning 1" 2 1589 return 1 1590 } 1591 1592 # Set up, compile, and execute a test program containing VMX instructions. 1593 # Include the current process ID in the file names to prevent conflicts 1594 # with invocations for multiple testsuites. 1595 set src vmx[pid].c 1596 set exe vmx[pid].x 1597 1598 set f [open $src "w"] 1599 puts $f "int main() {" 1600 puts $f "#ifdef __MACH__" 1601 puts $f " asm volatile (\"vor v0,v0,v0\");" 1602 puts $f "#else" 1603 puts $f " asm volatile (\"vor 0,0,0\");" 1604 puts $f "#endif" 1605 puts $f " return 0; }" 1606 close $f 1607 1608 verbose "$me: compiling testfile $src" 2 1609 set lines [gdb_compile $src $exe executable $compile_flags] 1610 file delete $src 1611 1612 if ![string match "" $lines] then { 1613 verbose "$me: testfile compilation failed, returning 1" 2 1614 return [set skip_vmx_tests_saved 1] 1615 } 1616 1617 # No error message, compilation succeeded so now run it via gdb. 1618 1619 gdb_exit 1620 gdb_start 1621 gdb_reinitialize_dir $srcdir/$subdir 1622 gdb_load "$exe" 1623 gdb_run_cmd 1624 gdb_expect { 1625 -re ".*Illegal instruction.*${gdb_prompt} $" { 1626 verbose -log "\n$me altivec hardware not detected" 1627 set skip_vmx_tests_saved 1 1628 } 1629 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" { 1630 verbose -log "\n$me: altivec hardware detected" 1631 set skip_vmx_tests_saved 0 1632 } 1633 default { 1634 warning "\n$me: default case taken" 1635 set skip_vmx_tests_saved 1 1636 } 1637 } 1638 gdb_exit 1639 remote_file build delete $exe 1640 1641 verbose "$me: returning $skip_vmx_tests_saved" 2 1642 return $skip_vmx_tests_saved 1643} 1644 1645# Run a test on the target to see if it supports vmx hardware. Return 0 if so, 1646# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite. 1647 1648proc skip_vsx_tests {} { 1649 global skip_vsx_tests_saved 1650 global srcdir subdir gdb_prompt inferior_exited_re 1651 1652 # Use the cached value, if it exists. 1653 set me "skip_vsx_tests" 1654 if [info exists skip_vsx_tests_saved] { 1655 verbose "$me: returning saved $skip_vsx_tests_saved" 2 1656 return $skip_vsx_tests_saved 1657 } 1658 1659 # Some simulators are known to not support Altivec instructions, so 1660 # they won't support VSX instructions as well. 1661 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } { 1662 verbose "$me: target known to not support VSX, returning 1" 2 1663 return [set skip_vsx_tests_saved 1] 1664 } 1665 1666 # Make sure we have a compiler that understands altivec. 1667 set compile_flags {debug nowarnings quiet} 1668 if [get_compiler_info not-used] { 1669 warning "Could not get compiler info" 1670 return 1 1671 } 1672 if [test_compiler_info gcc*] { 1673 set compile_flags "$compile_flags additional_flags=-mvsx" 1674 } elseif [test_compiler_info xlc*] { 1675 set compile_flags "$compile_flags additional_flags=-qasm=gcc" 1676 } else { 1677 verbose "Could not compile with vsx support, returning 1" 2 1678 return 1 1679 } 1680 1681 set src vsx[pid].c 1682 set exe vsx[pid].x 1683 1684 set f [open $src "w"] 1685 puts $f "int main() {" 1686 puts $f " double a\[2\] = { 1.0, 2.0 };" 1687 puts $f "#ifdef __MACH__" 1688 puts $f " asm volatile (\"lxvd2x v0,v0,%\[addr\]\" : : \[addr\] \"r\" (a));" 1689 puts $f "#else" 1690 puts $f " asm volatile (\"lxvd2x 0,0,%\[addr\]\" : : \[addr\] \"r\" (a));" 1691 puts $f "#endif" 1692 puts $f " return 0; }" 1693 close $f 1694 1695 verbose "$me: compiling testfile $src" 2 1696 set lines [gdb_compile $src $exe executable $compile_flags] 1697 file delete $src 1698 1699 if ![string match "" $lines] then { 1700 verbose "$me: testfile compilation failed, returning 1" 2 1701 return [set skip_vsx_tests_saved 1] 1702 } 1703 1704 # No error message, compilation succeeded so now run it via gdb. 1705 1706 gdb_exit 1707 gdb_start 1708 gdb_reinitialize_dir $srcdir/$subdir 1709 gdb_load "$exe" 1710 gdb_run_cmd 1711 gdb_expect { 1712 -re ".*Illegal instruction.*${gdb_prompt} $" { 1713 verbose -log "\n$me VSX hardware not detected" 1714 set skip_vsx_tests_saved 1 1715 } 1716 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" { 1717 verbose -log "\n$me: VSX hardware detected" 1718 set skip_vsx_tests_saved 0 1719 } 1720 default { 1721 warning "\n$me: default case taken" 1722 set skip_vsx_tests_saved 1 1723 } 1724 } 1725 gdb_exit 1726 remote_file build delete $exe 1727 1728 verbose "$me: returning $skip_vsx_tests_saved" 2 1729 return $skip_vsx_tests_saved 1730} 1731 1732# Skip all the tests in the file if you are not on an hppa running 1733# hpux target. 1734 1735proc skip_hp_tests {} { 1736 eval set skip_hp [ expr ![isnative] || ![istarget "hppa*-*-hpux*"] ] 1737 verbose "Skip hp tests is $skip_hp" 1738 return $skip_hp 1739} 1740 1741# Return whether we should skip tests for showing inlined functions in 1742# backtraces. Requires get_compiler_info and get_debug_format. 1743 1744proc skip_inline_frame_tests {} { 1745 # GDB only recognizes inlining information in DWARF 2 (DWARF 3). 1746 if { ! [test_debug_format "DWARF 2"] } { 1747 return 1 1748 } 1749 1750 # GCC before 4.1 does not emit DW_AT_call_file / DW_AT_call_line. 1751 if { ([test_compiler_info "gcc-2-*"] 1752 || [test_compiler_info "gcc-3-*"] 1753 || [test_compiler_info "gcc-4-0-*"]) } { 1754 return 1 1755 } 1756 1757 return 0 1758} 1759 1760# Return whether we should skip tests for showing variables from 1761# inlined functions. Requires get_compiler_info and get_debug_format. 1762 1763proc skip_inline_var_tests {} { 1764 # GDB only recognizes inlining information in DWARF 2 (DWARF 3). 1765 if { ! [test_debug_format "DWARF 2"] } { 1766 return 1 1767 } 1768 1769 return 0 1770} 1771 1772# Return a 1 if we should skip tests that require hardware breakpoints 1773 1774proc skip_hw_breakpoint_tests {} { 1775 # Skip tests if requested by the board (note that no_hardware_watchpoints 1776 # disables both watchpoints and breakpoints) 1777 if { [target_info exists gdb,no_hardware_watchpoints]} { 1778 return 1 1779 } 1780 1781 # These targets support hardware breakpoints natively 1782 if { [istarget "i?86-*-*"] 1783 || [istarget "x86_64-*-*"] 1784 || [istarget "ia64-*-*"] 1785 || [istarget "arm*-*-*"]} { 1786 return 0 1787 } 1788 1789 return 1 1790} 1791 1792# Return a 1 if we should skip tests that require hardware watchpoints 1793 1794proc skip_hw_watchpoint_tests {} { 1795 # Skip tests if requested by the board 1796 if { [target_info exists gdb,no_hardware_watchpoints]} { 1797 return 1 1798 } 1799 1800 # These targets support hardware watchpoints natively 1801 if { [istarget "i?86-*-*"] 1802 || [istarget "x86_64-*-*"] 1803 || [istarget "ia64-*-*"] 1804 || [istarget "arm*-*-*"] 1805 || [istarget "powerpc*-*-linux*"] 1806 || [istarget "s390*-*-*"] } { 1807 return 0 1808 } 1809 1810 return 1 1811} 1812 1813# Return a 1 if we should skip tests that require *multiple* hardware 1814# watchpoints to be active at the same time 1815 1816proc skip_hw_watchpoint_multi_tests {} { 1817 if { [skip_hw_watchpoint_tests] } { 1818 return 1 1819 } 1820 1821 # These targets support just a single hardware watchpoint 1822 if { [istarget "arm*-*-*"] 1823 || [istarget "powerpc*-*-linux*"] } { 1824 return 1 1825 } 1826 1827 return 0 1828} 1829 1830# Return a 1 if we should skip tests that require read/access watchpoints 1831 1832proc skip_hw_watchpoint_access_tests {} { 1833 if { [skip_hw_watchpoint_tests] } { 1834 return 1 1835 } 1836 1837 # These targets support just write watchpoints 1838 if { [istarget "s390*-*-*"] } { 1839 return 1 1840 } 1841 1842 return 0 1843} 1844 1845set compiler_info "unknown" 1846set gcc_compiled 0 1847set hp_cc_compiler 0 1848set hp_aCC_compiler 0 1849 1850# Figure out what compiler I am using. 1851# 1852# BINFILE is a "compiler information" output file. This implementation 1853# does not use BINFILE. 1854# 1855# ARGS can be empty or "C++". If empty, "C" is assumed. 1856# 1857# There are several ways to do this, with various problems. 1858# 1859# [ gdb_compile -E $ifile -o $binfile.ci ] 1860# source $binfile.ci 1861# 1862# Single Unix Spec v3 says that "-E -o ..." together are not 1863# specified. And in fact, the native compiler on hp-ux 11 (among 1864# others) does not work with "-E -o ...". Most targets used to do 1865# this, and it mostly worked, because it works with gcc. 1866# 1867# [ catch "exec $compiler -E $ifile > $binfile.ci" exec_output ] 1868# source $binfile.ci 1869# 1870# This avoids the problem with -E and -o together. This almost works 1871# if the build machine is the same as the host machine, which is 1872# usually true of the targets which are not gcc. But this code does 1873# not figure which compiler to call, and it always ends up using the C 1874# compiler. Not good for setting hp_aCC_compiler. Targets 1875# hppa*-*-hpux* and mips*-*-irix* used to do this. 1876# 1877# [ gdb_compile -E $ifile > $binfile.ci ] 1878# source $binfile.ci 1879# 1880# dejagnu target_compile says that it supports output redirection, 1881# but the code is completely different from the normal path and I 1882# don't want to sweep the mines from that path. So I didn't even try 1883# this. 1884# 1885# set cppout [ gdb_compile $ifile "" preprocess $args quiet ] 1886# eval $cppout 1887# 1888# I actually do this for all targets now. gdb_compile runs the right 1889# compiler, and TCL captures the output, and I eval the output. 1890# 1891# Unfortunately, expect logs the output of the command as it goes by, 1892# and dejagnu helpfully prints a second copy of it right afterwards. 1893# So I turn off expect logging for a moment. 1894# 1895# [ gdb_compile $ifile $ciexe_file executable $args ] 1896# [ remote_exec $ciexe_file ] 1897# [ source $ci_file.out ] 1898# 1899# I could give up on -E and just do this. 1900# I didn't get desperate enough to try this. 1901# 1902# -- chastain 2004-01-06 1903 1904proc get_compiler_info {binfile args} { 1905 # For compiler.c and compiler.cc 1906 global srcdir 1907 1908 # I am going to play with the log to keep noise out. 1909 global outdir 1910 global tool 1911 1912 # These come from compiler.c or compiler.cc 1913 global compiler_info 1914 1915 # Legacy global data symbols. 1916 global gcc_compiled 1917 global hp_cc_compiler 1918 global hp_aCC_compiler 1919 1920 # Choose which file to preprocess. 1921 set ifile "${srcdir}/lib/compiler.c" 1922 if { [llength $args] > 0 && [lindex $args 0] == "c++" } { 1923 set ifile "${srcdir}/lib/compiler.cc" 1924 } 1925 1926 # Run $ifile through the right preprocessor. 1927 # Toggle gdb.log to keep the compiler output out of the log. 1928 log_file 1929 if [is_remote host] { 1930 # We have to use -E and -o together, despite the comments 1931 # above, because of how DejaGnu handles remote host testing. 1932 set ppout "$outdir/compiler.i" 1933 gdb_compile "${ifile}" "$ppout" preprocess [list "$args" quiet] 1934 set file [open $ppout r] 1935 set cppout [read $file] 1936 close $file 1937 } else { 1938 set cppout [ gdb_compile "${ifile}" "" preprocess [list "$args" quiet] ] 1939 } 1940 log_file -a "$outdir/$tool.log" 1941 1942 # Eval the output. 1943 set unknown 0 1944 foreach cppline [ split "$cppout" "\n" ] { 1945 if { [ regexp "^#" "$cppline" ] } { 1946 # line marker 1947 } elseif { [ regexp "^\[\n\r\t \]*$" "$cppline" ] } { 1948 # blank line 1949 } elseif { [ regexp "^\[\n\r\t \]*set\[\n\r\t \]" "$cppline" ] } { 1950 # eval this line 1951 verbose "get_compiler_info: $cppline" 2 1952 eval "$cppline" 1953 } else { 1954 # unknown line 1955 verbose -log "get_compiler_info: $cppline" 1956 set unknown 1 1957 } 1958 } 1959 1960 # Reset to unknown compiler if any diagnostics happened. 1961 if { $unknown } { 1962 set compiler_info "unknown" 1963 } 1964 1965 # Set the legacy symbols. 1966 set gcc_compiled 0 1967 set hp_cc_compiler 0 1968 set hp_aCC_compiler 0 1969 if { [regexp "^gcc-1-" "$compiler_info" ] } { set gcc_compiled 1 } 1970 if { [regexp "^gcc-2-" "$compiler_info" ] } { set gcc_compiled 2 } 1971 if { [regexp "^gcc-3-" "$compiler_info" ] } { set gcc_compiled 3 } 1972 if { [regexp "^gcc-4-" "$compiler_info" ] } { set gcc_compiled 4 } 1973 if { [regexp "^gcc-5-" "$compiler_info" ] } { set gcc_compiled 5 } 1974 if { [regexp "^hpcc-" "$compiler_info" ] } { set hp_cc_compiler 1 } 1975 if { [regexp "^hpacc-" "$compiler_info" ] } { set hp_aCC_compiler 1 } 1976 1977 # Log what happened. 1978 verbose -log "get_compiler_info: $compiler_info" 1979 1980 # Most compilers will evaluate comparisons and other boolean 1981 # operations to 0 or 1. 1982 uplevel \#0 { set true 1 } 1983 uplevel \#0 { set false 0 } 1984 1985 # Use of aCC results in boolean results being displayed as 1986 # "true" or "false" 1987 if { $hp_aCC_compiler } { 1988 uplevel \#0 { set true true } 1989 uplevel \#0 { set false false } 1990 } 1991 1992 return 0; 1993} 1994 1995proc test_compiler_info { {compiler ""} } { 1996 global compiler_info 1997 1998 # if no arg, return the compiler_info string 1999 2000 if [string match "" $compiler] { 2001 if [info exists compiler_info] { 2002 return $compiler_info 2003 } else { 2004 perror "No compiler info found." 2005 } 2006 } 2007 2008 return [string match $compiler $compiler_info] 2009} 2010 2011proc current_target_name { } { 2012 global target_info 2013 if [info exists target_info(target,name)] { 2014 set answer $target_info(target,name) 2015 } else { 2016 set answer "" 2017 } 2018 return $answer 2019} 2020 2021set gdb_wrapper_initialized 0 2022set gdb_wrapper_target "" 2023 2024proc gdb_wrapper_init { args } { 2025 global gdb_wrapper_initialized; 2026 global gdb_wrapper_file; 2027 global gdb_wrapper_flags; 2028 global gdb_wrapper_target 2029 2030 if { $gdb_wrapper_initialized == 1 } { return; } 2031 2032 if {[target_info exists needs_status_wrapper] && \ 2033 [target_info needs_status_wrapper] != "0"} { 2034 set result [build_wrapper "testglue.o"]; 2035 if { $result != "" } { 2036 set gdb_wrapper_file [lindex $result 0]; 2037 set gdb_wrapper_flags [lindex $result 1]; 2038 } else { 2039 warning "Status wrapper failed to build." 2040 } 2041 } 2042 set gdb_wrapper_initialized 1 2043 set gdb_wrapper_target [current_target_name] 2044} 2045 2046# Some targets need to always link a special object in. Save its path here. 2047global gdb_saved_set_unbuffered_mode_obj 2048set gdb_saved_set_unbuffered_mode_obj "" 2049 2050proc gdb_compile {source dest type options} { 2051 global GDB_TESTCASE_OPTIONS; 2052 global gdb_wrapper_file; 2053 global gdb_wrapper_flags; 2054 global gdb_wrapper_initialized; 2055 global srcdir 2056 global objdir 2057 global gdb_saved_set_unbuffered_mode_obj 2058 2059 set outdir [file dirname $dest] 2060 2061 # Add platform-specific options if a shared library was specified using 2062 # "shlib=librarypath" in OPTIONS. 2063 set new_options "" 2064 set shlib_found 0 2065 set shlib_load 0 2066 foreach opt $options { 2067 if [regexp {^shlib=(.*)} $opt dummy_var shlib_name] { 2068 if [test_compiler_info "xlc-*"] { 2069 # IBM xlc compiler doesn't accept shared library named other 2070 # than .so: use "-Wl," to bypass this 2071 lappend source "-Wl,$shlib_name" 2072 } elseif { ([istarget "*-*-mingw*"] 2073 || [istarget *-*-cygwin*] 2074 || [istarget *-*-pe*])} { 2075 lappend source "${shlib_name}.a" 2076 } else { 2077 lappend source $shlib_name 2078 } 2079 if { $shlib_found == 0 } { 2080 set shlib_found 1 2081 if { ([istarget "*-*-mingw*"] 2082 || [istarget *-*-cygwin*]) } { 2083 lappend new_options "additional_flags=-Wl,--enable-auto-import" 2084 } 2085 } 2086 } elseif { $opt == "shlib_load" } { 2087 set shlib_load 1 2088 } else { 2089 lappend new_options $opt 2090 } 2091 } 2092 2093 # We typically link to shared libraries using an absolute path, and 2094 # that's how they are found at runtime. If we are going to 2095 # dynamically load one by basename, we must specify rpath. If we 2096 # are using a remote host, DejaGNU will link to the shared library 2097 # using a relative path, so again we must specify an rpath. 2098 if { $shlib_load || ($shlib_found && [is_remote host]) } { 2099 if { ([istarget "*-*-mingw*"] 2100 || [istarget *-*-cygwin*] 2101 || [istarget *-*-pe*] 2102 || [istarget hppa*-*-hpux*])} { 2103 # Do not need anything. 2104 } elseif { [istarget *-*-openbsd*] } { 2105 lappend new_options "ldflags=-Wl,-rpath,${outdir}" 2106 } elseif { [istarget arm*-*-symbianelf*] } { 2107 if { $shlib_load } { 2108 lappend new_options "libs=-ldl" 2109 } 2110 } else { 2111 if { $shlib_load } { 2112 lappend new_options "libs=-ldl" 2113 } 2114 lappend new_options "ldflags=-Wl,-rpath,\\\$ORIGIN" 2115 } 2116 } 2117 set options $new_options 2118 2119 if [target_info exists gdb_stub] { 2120 set options2 { "additional_flags=-Dusestubs" } 2121 lappend options "libs=[target_info gdb_stub]"; 2122 set options [concat $options2 $options] 2123 } 2124 if [target_info exists is_vxworks] { 2125 set options2 { "additional_flags=-Dvxworks" } 2126 lappend options "libs=[target_info gdb_stub]"; 2127 set options [concat $options2 $options] 2128 } 2129 if [info exists GDB_TESTCASE_OPTIONS] { 2130 lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"; 2131 } 2132 verbose "options are $options" 2133 verbose "source is $source $dest $type $options" 2134 2135 if { $gdb_wrapper_initialized == 0 } { gdb_wrapper_init } 2136 2137 if {[target_info exists needs_status_wrapper] && \ 2138 [target_info needs_status_wrapper] != "0" && \ 2139 [info exists gdb_wrapper_file]} { 2140 lappend options "libs=${gdb_wrapper_file}" 2141 lappend options "ldflags=${gdb_wrapper_flags}" 2142 } 2143 2144 # Replace the "nowarnings" option with the appropriate additional_flags 2145 # to disable compiler warnings. 2146 set nowarnings [lsearch -exact $options nowarnings] 2147 if {$nowarnings != -1} { 2148 if [target_info exists gdb,nowarnings_flag] { 2149 set flag "additional_flags=[target_info gdb,nowarnings_flag]" 2150 } else { 2151 set flag "additional_flags=-w" 2152 } 2153 set options [lreplace $options $nowarnings $nowarnings $flag] 2154 } 2155 2156 if { $type == "executable" } { 2157 if { ([istarget "*-*-mingw*"] 2158 || [istarget "*-*-*djgpp"] 2159 || [istarget "*-*-cygwin*"])} { 2160 # Force output to unbuffered mode, by linking in an object file 2161 # with a global contructor that calls setvbuf. 2162 # 2163 # Compile the special object seperatelly for two reasons: 2164 # 1) Insulate it from $options. 2165 # 2) Avoid compiling it for every gdb_compile invocation, 2166 # which is time consuming, especially if we're remote 2167 # host testing. 2168 # 2169 if { $gdb_saved_set_unbuffered_mode_obj == "" } { 2170 verbose "compiling gdb_saved_set_unbuffered_obj" 2171 set unbuf_src ${srcdir}/lib/set_unbuffered_mode.c 2172 set unbuf_obj ${objdir}/set_unbuffered_mode.o 2173 2174 set result [gdb_compile "${unbuf_src}" "${unbuf_obj}" object {nowarnings}] 2175 if { $result != "" } { 2176 return $result 2177 } 2178 2179 set gdb_saved_set_unbuffered_mode_obj ${objdir}/set_unbuffered_mode_saved.o 2180 # Link a copy of the output object, because the 2181 # original may be automatically deleted. 2182 remote_exec host "cp -f $unbuf_obj $gdb_saved_set_unbuffered_mode_obj" 2183 } else { 2184 verbose "gdb_saved_set_unbuffered_obj already compiled" 2185 } 2186 2187 # Rely on the internal knowledge that the global ctors are ran in 2188 # reverse link order. In that case, we can use ldflags to 2189 # avoid copying the object file to the host multiple 2190 # times. 2191 # This object can only be added if standard libraries are 2192 # used. Thus, we need to disable it if -nostdlib option is used 2193 if {[lsearch -regexp $options "-nostdlib"] < 0 } { 2194 lappend options "ldflags=$gdb_saved_set_unbuffered_mode_obj" 2195 } 2196 } 2197 } 2198 2199 set result [target_compile $source $dest $type $options]; 2200 2201 # Prune uninteresting compiler (and linker) output. 2202 regsub "Creating library file: \[^\r\n\]*\[\r\n\]+" $result "" result 2203 2204 regsub "\[\r\n\]*$" "$result" "" result; 2205 regsub "^\[\r\n\]*" "$result" "" result; 2206 2207 if {[lsearch $options quiet] < 0} { 2208 # We shall update this on a per language basis, to avoid 2209 # changing the entire testsuite in one go. 2210 if {[lsearch $options f77] >= 0} { 2211 gdb_compile_test $source $result 2212 } elseif { $result != "" } { 2213 clone_output "gdb compile failed, $result" 2214 } 2215 } 2216 return $result; 2217} 2218 2219 2220# This is just like gdb_compile, above, except that it tries compiling 2221# against several different thread libraries, to see which one this 2222# system has. 2223proc gdb_compile_pthreads {source dest type options} { 2224 set built_binfile 0 2225 set why_msg "unrecognized error" 2226 foreach lib {-lpthreads -lpthread -lthread ""} { 2227 # This kind of wipes out whatever libs the caller may have 2228 # set. Or maybe theirs will override ours. How infelicitous. 2229 set options_with_lib [concat $options [list libs=$lib quiet]] 2230 set ccout [gdb_compile $source $dest $type $options_with_lib] 2231 switch -regexp -- $ccout { 2232 ".*no posix threads support.*" { 2233 set why_msg "missing threads include file" 2234 break 2235 } 2236 ".*cannot open -lpthread.*" { 2237 set why_msg "missing runtime threads library" 2238 } 2239 ".*Can't find library for -lpthread.*" { 2240 set why_msg "missing runtime threads library" 2241 } 2242 {^$} { 2243 pass "successfully compiled posix threads test case" 2244 set built_binfile 1 2245 break 2246 } 2247 } 2248 } 2249 if {!$built_binfile} { 2250 unsupported "Couldn't compile $source: ${why_msg}" 2251 return -1 2252 } 2253} 2254 2255# Build a shared library from SOURCES. You must use get_compiler_info 2256# first. 2257 2258proc gdb_compile_shlib {sources dest options} { 2259 set obj_options $options 2260 2261 switch -glob [test_compiler_info] { 2262 "xlc-*" { 2263 lappend obj_options "additional_flags=-qpic" 2264 } 2265 "gcc-*" { 2266 if { !([istarget "powerpc*-*-aix*"] 2267 || [istarget "rs6000*-*-aix*"] 2268 || [istarget "*-*-cygwin*"] 2269 || [istarget "*-*-mingw*"] 2270 || [istarget "*-*-pe*"]) } { 2271 lappend obj_options "additional_flags=-fpic" 2272 } 2273 } 2274 default { 2275 switch -glob [istarget] { 2276 "hppa*-hp-hpux*" { 2277 lappend obj_options "additional_flags=+z" 2278 } 2279 "mips-sgi-irix*" { 2280 # Disable SGI compiler's implicit -Dsgi 2281 lappend obj_options "additional_flags=-Usgi" 2282 } 2283 default { 2284 # don't know what the compiler is... 2285 } 2286 } 2287 } 2288 } 2289 2290 set outdir [file dirname $dest] 2291 set objects "" 2292 foreach source $sources { 2293 set sourcebase [file tail $source] 2294 if {[gdb_compile $source "${outdir}/${sourcebase}.o" object $obj_options] != ""} { 2295 return -1 2296 } 2297 lappend objects ${outdir}/${sourcebase}.o 2298 } 2299 2300 if [istarget "hppa*-*-hpux*"] { 2301 remote_exec build "ld -b ${objects} -o ${dest}" 2302 } else { 2303 set link_options $options 2304 if [test_compiler_info "xlc-*"] { 2305 lappend link_options "additional_flags=-qmkshrobj" 2306 } else { 2307 lappend link_options "additional_flags=-shared" 2308 2309 if { ([istarget "*-*-mingw*"] 2310 || [istarget *-*-cygwin*] 2311 || [istarget *-*-pe*])} { 2312 lappend link_options "additional_flags=-Wl,--out-implib,${dest}.a" 2313 } 2314 } 2315 if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} { 2316 return -1 2317 } 2318 } 2319} 2320 2321# This is just like gdb_compile_pthreads, above, except that we always add the 2322# objc library for compiling Objective-C programs 2323proc gdb_compile_objc {source dest type options} { 2324 set built_binfile 0 2325 set why_msg "unrecognized error" 2326 foreach lib {-lobjc -lpthreads -lpthread -lthread solaris} { 2327 # This kind of wipes out whatever libs the caller may have 2328 # set. Or maybe theirs will override ours. How infelicitous. 2329 if { $lib == "solaris" } { 2330 set lib "-lpthread -lposix4" 2331 } 2332 if { $lib != "-lobjc" } { 2333 set lib "-lobjc $lib" 2334 } 2335 set options_with_lib [concat $options [list libs=$lib quiet]] 2336 set ccout [gdb_compile $source $dest $type $options_with_lib] 2337 switch -regexp -- $ccout { 2338 ".*no posix threads support.*" { 2339 set why_msg "missing threads include file" 2340 break 2341 } 2342 ".*cannot open -lpthread.*" { 2343 set why_msg "missing runtime threads library" 2344 } 2345 ".*Can't find library for -lpthread.*" { 2346 set why_msg "missing runtime threads library" 2347 } 2348 {^$} { 2349 pass "successfully compiled objc with posix threads test case" 2350 set built_binfile 1 2351 break 2352 } 2353 } 2354 } 2355 if {!$built_binfile} { 2356 unsupported "Couldn't compile $source: ${why_msg}" 2357 return -1 2358 } 2359} 2360 2361proc send_gdb { string } { 2362 global suppress_flag; 2363 if { $suppress_flag } { 2364 return "suppressed"; 2365 } 2366 return [remote_send host "$string"]; 2367} 2368 2369# 2370# 2371 2372proc gdb_expect { args } { 2373 if { [llength $args] == 2 && [lindex $args 0] != "-re" } { 2374 set atimeout [lindex $args 0]; 2375 set expcode [list [lindex $args 1]]; 2376 } else { 2377 set expcode $args; 2378 } 2379 2380 upvar timeout timeout; 2381 2382 if [target_info exists gdb,timeout] { 2383 if [info exists timeout] { 2384 if { $timeout < [target_info gdb,timeout] } { 2385 set gtimeout [target_info gdb,timeout]; 2386 } else { 2387 set gtimeout $timeout; 2388 } 2389 } else { 2390 set gtimeout [target_info gdb,timeout]; 2391 } 2392 } 2393 2394 if ![info exists gtimeout] { 2395 global timeout; 2396 if [info exists timeout] { 2397 set gtimeout $timeout; 2398 } 2399 } 2400 2401 if [info exists atimeout] { 2402 if { ![info exists gtimeout] || $gtimeout < $atimeout } { 2403 set gtimeout $atimeout; 2404 } 2405 } else { 2406 if ![info exists gtimeout] { 2407 # Eeeeew. 2408 set gtimeout 60; 2409 } 2410 } 2411 2412 global suppress_flag; 2413 global remote_suppress_flag; 2414 if [info exists remote_suppress_flag] { 2415 set old_val $remote_suppress_flag; 2416 } 2417 if [info exists suppress_flag] { 2418 if { $suppress_flag } { 2419 set remote_suppress_flag 1; 2420 } 2421 } 2422 set code [catch \ 2423 {uplevel remote_expect host $gtimeout $expcode} string]; 2424 if [info exists old_val] { 2425 set remote_suppress_flag $old_val; 2426 } else { 2427 if [info exists remote_suppress_flag] { 2428 unset remote_suppress_flag; 2429 } 2430 } 2431 2432 if {$code == 1} { 2433 global errorInfo errorCode; 2434 2435 return -code error -errorinfo $errorInfo -errorcode $errorCode $string 2436 } elseif {$code == 2} { 2437 return -code return $string 2438 } elseif {$code == 3} { 2439 return 2440 } elseif {$code > 4} { 2441 return -code $code $string 2442 } 2443} 2444 2445# gdb_expect_list TEST SENTINEL LIST -- expect a sequence of outputs 2446# 2447# Check for long sequence of output by parts. 2448# TEST: is the test message to be printed with the test success/fail. 2449# SENTINEL: Is the terminal pattern indicating that output has finished. 2450# LIST: is the sequence of outputs to match. 2451# If the sentinel is recognized early, it is considered an error. 2452# 2453# Returns: 2454# 1 if the test failed, 2455# 0 if the test passes, 2456# -1 if there was an internal error. 2457 2458proc gdb_expect_list {test sentinel list} { 2459 global gdb_prompt 2460 global suppress_flag 2461 set index 0 2462 set ok 1 2463 if { $suppress_flag } { 2464 set ok 0 2465 unresolved "${test}" 2466 } 2467 while { ${index} < [llength ${list}] } { 2468 set pattern [lindex ${list} ${index}] 2469 set index [expr ${index} + 1] 2470 verbose -log "gdb_expect_list pattern: /$pattern/" 2 2471 if { ${index} == [llength ${list}] } { 2472 if { ${ok} } { 2473 gdb_expect { 2474 -re "${pattern}${sentinel}" { 2475 # pass "${test}, pattern ${index} + sentinel" 2476 } 2477 -re "${sentinel}" { 2478 fail "${test} (pattern ${index} + sentinel)" 2479 set ok 0 2480 } 2481 -re ".*A problem internal to GDB has been detected" { 2482 fail "${test} (GDB internal error)" 2483 set ok 0 2484 gdb_internal_error_resync 2485 } 2486 timeout { 2487 fail "${test} (pattern ${index} + sentinel) (timeout)" 2488 set ok 0 2489 } 2490 } 2491 } else { 2492 # unresolved "${test}, pattern ${index} + sentinel" 2493 } 2494 } else { 2495 if { ${ok} } { 2496 gdb_expect { 2497 -re "${pattern}" { 2498 # pass "${test}, pattern ${index}" 2499 } 2500 -re "${sentinel}" { 2501 fail "${test} (pattern ${index})" 2502 set ok 0 2503 } 2504 -re ".*A problem internal to GDB has been detected" { 2505 fail "${test} (GDB internal error)" 2506 set ok 0 2507 gdb_internal_error_resync 2508 } 2509 timeout { 2510 fail "${test} (pattern ${index}) (timeout)" 2511 set ok 0 2512 } 2513 } 2514 } else { 2515 # unresolved "${test}, pattern ${index}" 2516 } 2517 } 2518 } 2519 if { ${ok} } { 2520 pass "${test}" 2521 return 0 2522 } else { 2523 return 1 2524 } 2525} 2526 2527# 2528# 2529proc gdb_suppress_entire_file { reason } { 2530 global suppress_flag; 2531 2532 warning "$reason\n"; 2533 set suppress_flag -1; 2534} 2535 2536# 2537# Set suppress_flag, which will cause all subsequent calls to send_gdb and 2538# gdb_expect to fail immediately (until the next call to 2539# gdb_stop_suppressing_tests). 2540# 2541proc gdb_suppress_tests { args } { 2542 global suppress_flag; 2543 2544 return; # fnf - disable pending review of results where 2545 # testsuite ran better without this 2546 incr suppress_flag; 2547 2548 if { $suppress_flag == 1 } { 2549 if { [llength $args] > 0 } { 2550 warning "[lindex $args 0]\n"; 2551 } else { 2552 warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n"; 2553 } 2554 } 2555} 2556 2557# 2558# Clear suppress_flag. 2559# 2560proc gdb_stop_suppressing_tests { } { 2561 global suppress_flag; 2562 2563 if [info exists suppress_flag] { 2564 if { $suppress_flag > 0 } { 2565 set suppress_flag 0; 2566 clone_output "Tests restarted.\n"; 2567 } 2568 } else { 2569 set suppress_flag 0; 2570 } 2571} 2572 2573proc gdb_clear_suppressed { } { 2574 global suppress_flag; 2575 2576 set suppress_flag 0; 2577} 2578 2579proc gdb_start { } { 2580 default_gdb_start 2581} 2582 2583proc gdb_exit { } { 2584 catch default_gdb_exit 2585} 2586 2587# 2588# gdb_load_cmd -- load a file into the debugger. 2589# ARGS - additional args to load command. 2590# return a -1 if anything goes wrong. 2591# 2592proc gdb_load_cmd { args } { 2593 global gdb_prompt 2594 2595 if [target_info exists gdb_load_timeout] { 2596 set loadtimeout [target_info gdb_load_timeout] 2597 } else { 2598 set loadtimeout 1600 2599 } 2600 send_gdb "load $args\n" 2601 verbose "Timeout is now $loadtimeout seconds" 2 2602 gdb_expect $loadtimeout { 2603 -re "Loading section\[^\r\]*\r\n" { 2604 exp_continue 2605 } 2606 -re "Start address\[\r\]*\r\n" { 2607 exp_continue 2608 } 2609 -re "Transfer rate\[\r\]*\r\n" { 2610 exp_continue 2611 } 2612 -re "Memory access error\[^\r\]*\r\n" { 2613 perror "Failed to load program" 2614 return -1 2615 } 2616 -re "$gdb_prompt $" { 2617 return 0 2618 } 2619 -re "(.*)\r\n$gdb_prompt " { 2620 perror "Unexpected reponse from 'load' -- $expect_out(1,string)" 2621 return -1 2622 } 2623 timeout { 2624 perror "Timed out trying to load $args." 2625 return -1 2626 } 2627 } 2628 return -1 2629} 2630 2631# Return the filename to download to the target and load on the target 2632# for this shared library. Normally just LIBNAME, unless shared libraries 2633# for this target have separate link and load images. 2634 2635proc shlib_target_file { libname } { 2636 return $libname 2637} 2638 2639# Return the filename GDB will load symbols from when debugging this 2640# shared library. Normally just LIBNAME, unless shared libraries for 2641# this target have separate link and load images. 2642 2643proc shlib_symbol_file { libname } { 2644 return $libname 2645} 2646 2647# gdb_download 2648# 2649# Copy a file to the remote target and return its target filename. 2650# Schedule the file to be deleted at the end of this test. 2651 2652proc gdb_download { filename } { 2653 global cleanfiles 2654 2655 set destname [remote_download target $filename] 2656 lappend cleanfiles $destname 2657 return $destname 2658} 2659 2660# gdb_load_shlibs LIB... 2661# 2662# Copy the listed libraries to the target. 2663 2664proc gdb_load_shlibs { args } { 2665 if {![is_remote target]} { 2666 return 2667 } 2668 2669 foreach file $args { 2670 gdb_download [shlib_target_file $file] 2671 } 2672 2673 # Even if the target supplies full paths for shared libraries, 2674 # they may not be paths for this system. 2675 gdb_test "set solib-search-path [file dirname [lindex $args 0]]" "" "" 2676} 2677 2678# 2679# gdb_load -- load a file into the debugger. 2680# Many files in config/*.exp override this procedure. 2681# 2682proc gdb_load { arg } { 2683 return [gdb_file_cmd $arg] 2684} 2685 2686# gdb_reload -- load a file into the target. Called before "running", 2687# either the first time or after already starting the program once, 2688# for remote targets. Most files that override gdb_load should now 2689# override this instead. 2690 2691proc gdb_reload { } { 2692 # For the benefit of existing configurations, default to gdb_load. 2693 # Specifying no file defaults to the executable currently being 2694 # debugged. 2695 return [gdb_load ""] 2696} 2697 2698proc gdb_continue { function } { 2699 global decimal 2700 2701 return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]; 2702} 2703 2704proc default_gdb_init { args } { 2705 global gdb_wrapper_initialized 2706 global gdb_wrapper_target 2707 global cleanfiles 2708 2709 set cleanfiles {} 2710 2711 gdb_clear_suppressed; 2712 2713 # Make sure that the wrapper is rebuilt 2714 # with the appropriate multilib option. 2715 if { $gdb_wrapper_target != [current_target_name] } { 2716 set gdb_wrapper_initialized 0 2717 } 2718 2719 # Unlike most tests, we have a small number of tests that generate 2720 # a very large amount of output. We therefore increase the expect 2721 # buffer size to be able to contain the entire test output. 2722 match_max -d 30000 2723 # Also set this value for the currently running GDB. 2724 match_max [match_max -d] 2725 2726 # We want to add the name of the TCL testcase to the PASS/FAIL messages. 2727 if { [llength $args] > 0 } { 2728 global pf_prefix 2729 2730 set file [lindex $args 0]; 2731 2732 set pf_prefix "[file tail [file dirname $file]]/[file tail $file]:"; 2733 } 2734 global gdb_prompt; 2735 if [target_info exists gdb_prompt] { 2736 set gdb_prompt [target_info gdb_prompt]; 2737 } else { 2738 set gdb_prompt "\\(gdb\\)" 2739 } 2740} 2741 2742# The default timeout used when testing GDB commands. We want to use 2743# the same timeout as the default dejagnu timeout, unless the user has 2744# already provided a specific value (probably through a site.exp file). 2745global gdb_test_timeout 2746if ![info exists gdb_test_timeout] { 2747 set gdb_test_timeout $timeout 2748} 2749 2750# A list of global variables that GDB testcases should not use. 2751# We try to prevent their use by monitoring write accesses and raising 2752# an error when that happens. 2753set banned_variables { bug_id prms_id } 2754 2755# gdb_init is called by runtest at start, but also by several 2756# tests directly; gdb_finish is only called from within runtest after 2757# each test source execution. 2758# Placing several traces by repetitive calls to gdb_init leads 2759# to problems, as only one trace is removed in gdb_finish. 2760# To overcome this possible problem, we add a variable that records 2761# if the banned variables are traced. 2762set banned_variables_traced 0 2763 2764proc gdb_init { args } { 2765 # Reset the timeout value to the default. This way, any testcase 2766 # that changes the timeout value without resetting it cannot affect 2767 # the timeout used in subsequent testcases. 2768 global gdb_test_timeout 2769 global timeout 2770 set timeout $gdb_test_timeout 2771 2772 # Block writes to all banned variables... 2773 global banned_variables 2774 global banned_variables_traced 2775 if (!$banned_variables_traced) { 2776 foreach banned_var $banned_variables { 2777 global "$banned_var" 2778 trace add variable "$banned_var" write error 2779 } 2780 set banned_variables_traced 1 2781 } 2782 2783 # We set LC_ALL, LC_CTYPE, and LANG to C so that we get the same 2784 # messages as expected. 2785 setenv LC_ALL C 2786 setenv LC_CTYPE C 2787 setenv LANG C 2788 2789 # Don't let a .inputrc file or an existing setting of INPUTRC mess up 2790 # the test results. Even if /dev/null doesn't exist on the particular 2791 # platform, the readline library will use the default setting just by 2792 # failing to open the file. OTOH, opening /dev/null successfully will 2793 # also result in the default settings being used since nothing will be 2794 # read from this file. 2795 setenv INPUTRC "/dev/null" 2796 2797 # The gdb.base/readline.exp arrow key test relies on the standard VT100 2798 # bindings, so make sure that an appropriate terminal is selected. 2799 # The same bug doesn't show up if we use ^P / ^N instead. 2800 setenv TERM "vt100" 2801 2802 # Some tests (for example gdb.base/maint.exp) shell out from gdb to use 2803 # grep. Clear GREP_OPTIONS to make the behavoiur predictable, 2804 # especially having color output turned on can cause tests to fail. 2805 setenv GREP_OPTIONS "" 2806 2807 return [eval default_gdb_init $args]; 2808} 2809 2810proc gdb_finish { } { 2811 global cleanfiles 2812 2813 # Exit first, so that the files are no longer in use. 2814 gdb_exit 2815 2816 if { [llength $cleanfiles] > 0 } { 2817 eval remote_file target delete $cleanfiles 2818 set cleanfiles {} 2819 } 2820 2821 # Unblock write access to the banned variables. Dejagnu typically 2822 # resets some of them between testcases. 2823 global banned_variables 2824 global banned_variables_traced 2825 if ($banned_variables_traced) { 2826 foreach banned_var $banned_variables { 2827 global "$banned_var" 2828 trace remove variable "$banned_var" write error 2829 } 2830 set banned_variables_traced 0 2831 } 2832} 2833 2834global debug_format 2835set debug_format "unknown" 2836 2837# Run the gdb command "info source" and extract the debugging format 2838# information from the output and save it in debug_format. 2839 2840proc get_debug_format { } { 2841 global gdb_prompt 2842 global verbose 2843 global expect_out 2844 global debug_format 2845 2846 set debug_format "unknown" 2847 send_gdb "info source\n" 2848 gdb_expect 10 { 2849 -re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" { 2850 set debug_format $expect_out(1,string) 2851 verbose "debug format is $debug_format" 2852 return 1; 2853 } 2854 -re "No current source file.\r\n$gdb_prompt $" { 2855 perror "get_debug_format used when no current source file" 2856 return 0; 2857 } 2858 -re "$gdb_prompt $" { 2859 warning "couldn't check debug format (no valid response)." 2860 return 1; 2861 } 2862 timeout { 2863 warning "couldn't check debug format (timed out)." 2864 return 1; 2865 } 2866 } 2867} 2868 2869# Return true if FORMAT matches the debug format the current test was 2870# compiled with. FORMAT is a shell-style globbing pattern; it can use 2871# `*', `[...]', and so on. 2872# 2873# This function depends on variables set by `get_debug_format', above. 2874 2875proc test_debug_format {format} { 2876 global debug_format 2877 2878 return [expr [string match $format $debug_format] != 0] 2879} 2880 2881# Like setup_xfail, but takes the name of a debug format (DWARF 1, 2882# COFF, stabs, etc). If that format matches the format that the 2883# current test was compiled with, then the next test is expected to 2884# fail for any target. Returns 1 if the next test or set of tests is 2885# expected to fail, 0 otherwise (or if it is unknown). Must have 2886# previously called get_debug_format. 2887proc setup_xfail_format { format } { 2888 set ret [test_debug_format $format]; 2889 2890 if {$ret} then { 2891 setup_xfail "*-*-*" 2892 } 2893 return $ret; 2894} 2895 2896proc gdb_step_for_stub { } { 2897 global gdb_prompt; 2898 2899 if ![target_info exists gdb,use_breakpoint_for_stub] { 2900 if [target_info exists gdb_stub_step_command] { 2901 set command [target_info gdb_stub_step_command]; 2902 } else { 2903 set command "step"; 2904 } 2905 send_gdb "${command}\n"; 2906 set tries 0; 2907 gdb_expect 60 { 2908 -re "(main.* at |.*in .*start).*$gdb_prompt" { 2909 return; 2910 } 2911 -re ".*$gdb_prompt" { 2912 incr tries; 2913 if { $tries == 5 } { 2914 fail "stepping out of breakpoint function"; 2915 return; 2916 } 2917 send_gdb "${command}\n"; 2918 exp_continue; 2919 } 2920 default { 2921 fail "stepping out of breakpoint function"; 2922 return; 2923 } 2924 } 2925 } 2926 send_gdb "where\n"; 2927 gdb_expect { 2928 -re "main\[^\r\n\]*at \(\[^:]+\):\(\[0-9\]+\)" { 2929 set file $expect_out(1,string); 2930 set linenum [expr $expect_out(2,string) + 1]; 2931 set breakplace "${file}:${linenum}"; 2932 } 2933 default {} 2934 } 2935 send_gdb "break ${breakplace}\n"; 2936 gdb_expect 60 { 2937 -re "Breakpoint (\[0-9\]+) at.*$gdb_prompt" { 2938 set breakpoint $expect_out(1,string); 2939 } 2940 -re "Breakpoint (\[0-9\]+): file.*$gdb_prompt" { 2941 set breakpoint $expect_out(1,string); 2942 } 2943 default {} 2944 } 2945 send_gdb "continue\n"; 2946 gdb_expect 60 { 2947 -re "Breakpoint ${breakpoint},.*$gdb_prompt" { 2948 gdb_test "delete $breakpoint" ".*" ""; 2949 return; 2950 } 2951 default {} 2952 } 2953} 2954 2955# gdb_get_line_number TEXT [FILE] 2956# 2957# Search the source file FILE, and return the line number of the 2958# first line containing TEXT. If no match is found, return -1. 2959# 2960# TEXT is a string literal, not a regular expression. 2961# 2962# The default value of FILE is "$srcdir/$subdir/$srcfile". If FILE is 2963# specified, and does not start with "/", then it is assumed to be in 2964# "$srcdir/$subdir". This is awkward, and can be fixed in the future, 2965# by changing the callers and the interface at the same time. 2966# In particular: gdb.base/break.exp, gdb.base/condbreak.exp, 2967# gdb.base/ena-dis-br.exp. 2968# 2969# Use this function to keep your test scripts independent of the 2970# exact line numbering of the source file. Don't write: 2971# 2972# send_gdb "break 20" 2973# 2974# This means that if anyone ever edits your test's source file, 2975# your test could break. Instead, put a comment like this on the 2976# source file line you want to break at: 2977# 2978# /* breakpoint spot: frotz.exp: test name */ 2979# 2980# and then write, in your test script (which we assume is named 2981# frotz.exp): 2982# 2983# send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n" 2984# 2985# (Yes, Tcl knows how to handle the nested quotes and brackets. 2986# Try this: 2987# $ tclsh 2988# % puts "foo [lindex "bar baz" 1]" 2989# foo baz 2990# % 2991# Tcl is quite clever, for a little stringy language.) 2992# 2993# === 2994# 2995# The previous implementation of this procedure used the gdb search command. 2996# This version is different: 2997# 2998# . It works with MI, and it also works when gdb is not running. 2999# 3000# . It operates on the build machine, not the host machine. 3001# 3002# . For now, this implementation fakes a current directory of 3003# $srcdir/$subdir to be compatible with the old implementation. 3004# This will go away eventually and some callers will need to 3005# be changed. 3006# 3007# . The TEXT argument is literal text and matches literally, 3008# not a regular expression as it was before. 3009# 3010# . State changes in gdb, such as changing the current file 3011# and setting $_, no longer happen. 3012# 3013# After a bit of time we can forget about the differences from the 3014# old implementation. 3015# 3016# --chastain 2004-08-05 3017 3018proc gdb_get_line_number { text { file "" } } { 3019 global srcdir 3020 global subdir 3021 global srcfile 3022 3023 if { "$file" == "" } then { 3024 set file "$srcfile" 3025 } 3026 if { ! [regexp "^/" "$file"] } then { 3027 set file "$srcdir/$subdir/$file" 3028 } 3029 3030 if { [ catch { set fd [open "$file"] } message ] } then { 3031 perror "$message" 3032 return -1 3033 } 3034 3035 set found -1 3036 for { set line 1 } { 1 } { incr line } { 3037 if { [ catch { set nchar [gets "$fd" body] } message ] } then { 3038 perror "$message" 3039 return -1 3040 } 3041 if { $nchar < 0 } then { 3042 break 3043 } 3044 if { [string first "$text" "$body"] >= 0 } then { 3045 set found $line 3046 break 3047 } 3048 } 3049 3050 if { [ catch { close "$fd" } message ] } then { 3051 perror "$message" 3052 return -1 3053 } 3054 3055 return $found 3056} 3057 3058# gdb_continue_to_end: 3059# The case where the target uses stubs has to be handled specially. If a 3060# stub is used, we set a breakpoint at exit because we cannot rely on 3061# exit() behavior of a remote target. 3062# 3063# MSSG is the error message that gets printed. If not given, a 3064# default is used. 3065# COMMAND is the command to invoke. If not given, "continue" is 3066# used. 3067# ALLOW_EXTRA is a flag indicating whether the test should expect 3068# extra output between the "Continuing." line and the program 3069# exiting. By default it is zero; if nonzero, any extra output 3070# is accepted. 3071 3072proc gdb_continue_to_end {{mssg ""} {command continue} {allow_extra 0}} { 3073 global inferior_exited_re 3074 3075 if {$mssg == ""} { 3076 set text "continue until exit" 3077 } else { 3078 set text "continue until exit at $mssg" 3079 } 3080 if {$allow_extra} { 3081 set extra ".*" 3082 } else { 3083 set extra "" 3084 } 3085 if [target_info exists use_gdb_stub] { 3086 if {![gdb_breakpoint "exit"]} { 3087 return 0 3088 } 3089 gdb_test $command "Continuing..*Breakpoint .*exit.*" \ 3090 $text 3091 } else { 3092 # Continue until we exit. Should not stop again. 3093 # Don't bother to check the output of the program, that may be 3094 # extremely tough for some remote systems. 3095 gdb_test $command \ 3096 "Continuing.\[\r\n0-9\]+${extra}(... EXIT code 0\[\r\n\]+|$inferior_exited_re normally).*"\ 3097 $text 3098 } 3099} 3100 3101proc rerun_to_main {} { 3102 global gdb_prompt 3103 3104 if [target_info exists use_gdb_stub] { 3105 gdb_run_cmd 3106 gdb_expect { 3107 -re ".*Breakpoint .*main .*$gdb_prompt $"\ 3108 {pass "rerun to main" ; return 0} 3109 -re "$gdb_prompt $"\ 3110 {fail "rerun to main" ; return 0} 3111 timeout {fail "(timeout) rerun to main" ; return 0} 3112 } 3113 } else { 3114 send_gdb "run\n" 3115 gdb_expect { 3116 -re "The program .* has been started already.*y or n. $" { 3117 send_gdb "y\n" 3118 exp_continue 3119 } 3120 -re "Starting program.*$gdb_prompt $"\ 3121 {pass "rerun to main" ; return 0} 3122 -re "$gdb_prompt $"\ 3123 {fail "rerun to main" ; return 0} 3124 timeout {fail "(timeout) rerun to main" ; return 0} 3125 } 3126 } 3127} 3128 3129# Print a message and return true if a test should be skipped 3130# due to lack of floating point suport. 3131 3132proc gdb_skip_float_test { msg } { 3133 if [target_info exists gdb,skip_float_tests] { 3134 verbose "Skipping test '$msg': no float tests."; 3135 return 1; 3136 } 3137 return 0; 3138} 3139 3140# Print a message and return true if a test should be skipped 3141# due to lack of stdio support. 3142 3143proc gdb_skip_stdio_test { msg } { 3144 if [target_info exists gdb,noinferiorio] { 3145 verbose "Skipping test '$msg': no inferior i/o."; 3146 return 1; 3147 } 3148 return 0; 3149} 3150 3151proc gdb_skip_bogus_test { msg } { 3152 return 0; 3153} 3154 3155# Return true if a test should be skipped due to lack of XML support 3156# in the host GDB. 3157# NOTE: This must be called while gdb is *not* running. 3158 3159proc gdb_skip_xml_test { } { 3160 global gdb_prompt 3161 global srcdir 3162 global xml_missing_cached 3163 3164 if {[info exists xml_missing_cached]} { 3165 return $xml_missing_cached 3166 } 3167 3168 gdb_start 3169 set xml_missing_cached 0 3170 gdb_test_multiple "set tdesc filename ${srcdir}/gdb.xml/trivial.xml" "" { 3171 -re ".*XML support was disabled at compile time.*$gdb_prompt $" { 3172 set xml_missing_cached 1 3173 } 3174 -re ".*$gdb_prompt $" { } 3175 } 3176 gdb_exit 3177 return $xml_missing_cached 3178} 3179 3180# Note: the procedure gdb_gnu_strip_debug will produce an executable called 3181# ${binfile}.dbglnk, which is just like the executable ($binfile) but without 3182# the debuginfo. Instead $binfile has a .gnu_debuglink section which contains 3183# the name of a debuginfo only file. This file will be stored in the same 3184# subdirectory. 3185 3186# Functions for separate debug info testing 3187 3188# starting with an executable: 3189# foo --> original executable 3190 3191# at the end of the process we have: 3192# foo.stripped --> foo w/o debug info 3193# foo.debug --> foo's debug info 3194# foo --> like foo, but with a new .gnu_debuglink section pointing to foo.debug. 3195 3196# Return the build-id hex string (usually 160 bits as 40 hex characters) 3197# converted to the form: .build-id/ab/cdef1234...89.debug 3198# Return "" if no build-id found. 3199proc build_id_debug_filename_get { exec } { 3200 set tmp "${exec}-tmp" 3201 set objcopy_program [transform objcopy] 3202 3203 set result [catch "exec $objcopy_program -j .note.gnu.build-id -O binary $exec $tmp" output] 3204 verbose "result is $result" 3205 verbose "output is $output" 3206 if {$result == 1} { 3207 return "" 3208 } 3209 set fi [open $tmp] 3210 fconfigure $fi -translation binary 3211 # Skip the NOTE header. 3212 read $fi 16 3213 set data [read $fi] 3214 close $fi 3215 file delete $tmp 3216 if ![string compare $data ""] then { 3217 return "" 3218 } 3219 # Convert it to hex. 3220 binary scan $data H* data 3221 regsub {^..} $data {\0/} data 3222 return ".build-id/${data}.debug"; 3223} 3224 3225# Create stripped files for DEST, replacing it. If ARGS is passed, it is a 3226# list of optional flags. The only currently supported flag is no-main, 3227# which removes the symbol entry for main from the separate debug file. 3228# 3229# Function returns zero on success. Function will return non-zero failure code 3230# on some targets not supporting separate debug info (such as i386-msdos). 3231 3232proc gdb_gnu_strip_debug { dest args } { 3233 3234 # Use the first separate debug info file location searched by GDB so the 3235 # run cannot be broken by some stale file searched with higher precedence. 3236 set debug_file "${dest}.debug" 3237 3238 set strip_to_file_program [transform strip] 3239 set objcopy_program [transform objcopy] 3240 3241 set debug_link [file tail $debug_file] 3242 set stripped_file "${dest}.stripped" 3243 3244 # Get rid of the debug info, and store result in stripped_file 3245 # something like gdb/testsuite/gdb.base/blah.stripped. 3246 set result [catch "exec $strip_to_file_program --strip-debug ${dest} -o ${stripped_file}" output] 3247 verbose "result is $result" 3248 verbose "output is $output" 3249 if {$result == 1} { 3250 return 1 3251 } 3252 3253 # Workaround PR binutils/10802: 3254 # Preserve the 'x' bit also for PIEs (Position Independent Executables). 3255 set perm [file attributes ${dest} -permissions] 3256 file attributes ${stripped_file} -permissions $perm 3257 3258 # Get rid of everything but the debug info, and store result in debug_file 3259 # This will be in the .debug subdirectory, see above. 3260 set result [catch "exec $strip_to_file_program --only-keep-debug ${dest} -o ${debug_file}" output] 3261 verbose "result is $result" 3262 verbose "output is $output" 3263 if {$result == 1} { 3264 return 1 3265 } 3266 3267 # If no-main is passed, strip the symbol for main from the separate 3268 # file. This is to simulate the behavior of elfutils's eu-strip, which 3269 # leaves the symtab in the original file only. There's no way to get 3270 # objcopy or strip to remove the symbol table without also removing the 3271 # debugging sections, so this is as close as we can get. 3272 if { [llength $args] == 1 && [lindex $args 0] == "no-main" } { 3273 set result [catch "exec $objcopy_program -N main ${debug_file} ${debug_file}-tmp" output] 3274 verbose "result is $result" 3275 verbose "output is $output" 3276 if {$result == 1} { 3277 return 1 3278 } 3279 file delete "${debug_file}" 3280 file rename "${debug_file}-tmp" "${debug_file}" 3281 } 3282 3283 # Link the two previous output files together, adding the .gnu_debuglink 3284 # section to the stripped_file, containing a pointer to the debug_file, 3285 # save the new file in dest. 3286 # This will be the regular executable filename, in the usual location. 3287 set result [catch "exec $objcopy_program --add-gnu-debuglink=${debug_file} ${stripped_file} ${dest}" output] 3288 verbose "result is $result" 3289 verbose "output is $output" 3290 if {$result == 1} { 3291 return 1 3292 } 3293 3294 # Workaround PR binutils/10802: 3295 # Preserve the 'x' bit also for PIEs (Position Independent Executables). 3296 set perm [file attributes ${stripped_file} -permissions] 3297 file attributes ${dest} -permissions $perm 3298 3299 return 0 3300} 3301 3302# Test the output of GDB_COMMAND matches the pattern obtained 3303# by concatenating all elements of EXPECTED_LINES. This makes 3304# it possible to split otherwise very long string into pieces. 3305# If third argument is not empty, it's used as the name of the 3306# test to be printed on pass/fail. 3307proc help_test_raw { gdb_command expected_lines args } { 3308 set message $gdb_command 3309 if [llength $args]>0 then { 3310 set message [lindex $args 0] 3311 } 3312 set expected_output [join $expected_lines ""] 3313 gdb_test "${gdb_command}" "${expected_output}" $message 3314} 3315 3316# Test the output of "help COMMNAD_CLASS". EXPECTED_INITIAL_LINES 3317# are regular expressions that should match the beginning of output, 3318# before the list of commands in that class. The presence of 3319# command list and standard epilogue will be tested automatically. 3320proc test_class_help { command_class expected_initial_lines args } { 3321 set l_stock_body { 3322 "List of commands\:.*\[\r\n\]+" 3323 "Type \"help\" followed by command name for full documentation\.\[\r\n\]+" 3324 "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n\]+" 3325 "Command name abbreviations are allowed if unambiguous\." 3326 } 3327 set l_entire_body [concat $expected_initial_lines $l_stock_body] 3328 3329 eval [list help_test_raw "help ${command_class}" $l_entire_body] $args 3330} 3331 3332# COMMAND_LIST should have either one element -- command to test, or 3333# two elements -- abbreviated command to test, and full command the first 3334# element is abbreviation of. 3335# The command must be a prefix command. EXPECTED_INITIAL_LINES 3336# are regular expressions that should match the beginning of output, 3337# before the list of subcommands. The presence of 3338# subcommand list and standard epilogue will be tested automatically. 3339proc test_prefix_command_help { command_list expected_initial_lines args } { 3340 set command [lindex $command_list 0] 3341 if {[llength $command_list]>1} { 3342 set full_command [lindex $command_list 1] 3343 } else { 3344 set full_command $command 3345 } 3346 # Use 'list' and not just {} because we want variables to 3347 # be expanded in this list. 3348 set l_stock_body [list\ 3349 "List of $full_command subcommands\:.*\[\r\n\]+"\ 3350 "Type \"help $full_command\" followed by $full_command subcommand name for full documentation\.\[\r\n\]+"\ 3351 "Type \"apropos word\" to search for commands related to \"word\"\.\[\r\n\]+"\ 3352 "Command name abbreviations are allowed if unambiguous\."] 3353 set l_entire_body [concat $expected_initial_lines $l_stock_body] 3354 if {[llength $args]>0} { 3355 help_test_raw "help ${command}" $l_entire_body [lindex $args 0] 3356 } else { 3357 help_test_raw "help ${command}" $l_entire_body 3358 } 3359} 3360 3361# Build executable named EXECUTABLE, from SOURCES. If SOURCES are not 3362# provided, uses $EXECUTABLE.c. The TESTNAME paramer is the name of test 3363# to pass to untested, if something is wrong. OPTIONS are passed 3364# to gdb_compile directly. 3365proc build_executable { testname executable {sources ""} {options {debug}} } { 3366 3367 global objdir 3368 global subdir 3369 global srcdir 3370 if {[llength $sources]==0} { 3371 set sources ${executable}.c 3372 } 3373 3374 set binfile ${objdir}/${subdir}/${executable} 3375 3376 set objects {} 3377 for {set i 0} "\$i<[llength $sources]" {incr i} { 3378 set s [lindex $sources $i] 3379 if { [gdb_compile "${srcdir}/${subdir}/${s}" "${binfile}${i}.o" object $options] != "" } { 3380 untested $testname 3381 return -1 3382 } 3383 lappend objects "${binfile}${i}.o" 3384 } 3385 3386 if { [gdb_compile $objects "${binfile}" executable $options] != "" } { 3387 untested $testname 3388 return -1 3389 } 3390 3391 set info_options "" 3392 if { [lsearch -exact $options "c++"] >= 0 } { 3393 set info_options "c++" 3394 } 3395 if [get_compiler_info ${binfile} ${info_options}] { 3396 return -1 3397 } 3398 return 0 3399} 3400 3401# Starts fresh GDB binary and loads EXECUTABLE into GDB. EXECUTABLE is 3402# the name of binary in ${objdir}/${subdir}. 3403proc clean_restart { executable } { 3404 global srcdir 3405 global objdir 3406 global subdir 3407 set binfile ${objdir}/${subdir}/${executable} 3408 3409 gdb_exit 3410 gdb_start 3411 gdb_reinitialize_dir $srcdir/$subdir 3412 gdb_load ${binfile} 3413 3414 if [target_info exists gdb_stub] { 3415 gdb_step_for_stub; 3416 } 3417} 3418 3419# Prepares for testing, by calling build_executable, and then clean_restart. 3420# Please refer to build_executable for parameter description. 3421proc prepare_for_testing { testname executable {sources ""} {options {debug}}} { 3422 3423 if {[build_executable $testname $executable $sources $options] == -1} { 3424 return -1 3425 } 3426 clean_restart $executable 3427 3428 return 0 3429} 3430 3431proc get_valueof { fmt exp default } { 3432 global gdb_prompt 3433 3434 set test "get valueof \"${exp}\"" 3435 set val ${default} 3436 gdb_test_multiple "print${fmt} ${exp}" "$test" { 3437 -re "\\$\[0-9\]* = (.*)\[\r\n\]*$gdb_prompt $" { 3438 set val $expect_out(1,string) 3439 pass "$test ($val)" 3440 } 3441 timeout { 3442 fail "$test (timeout)" 3443 } 3444 } 3445 return ${val} 3446} 3447 3448proc get_integer_valueof { exp default } { 3449 global gdb_prompt 3450 3451 set test "get integer valueof \"${exp}\"" 3452 set val ${default} 3453 gdb_test_multiple "print /d ${exp}" "$test" { 3454 -re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" { 3455 set val $expect_out(1,string) 3456 pass "$test ($val)" 3457 } 3458 timeout { 3459 fail "$test (timeout)" 3460 } 3461 } 3462 return ${val} 3463} 3464 3465proc get_hexadecimal_valueof { exp default } { 3466 global gdb_prompt 3467 send_gdb "print /x ${exp}\n" 3468 set test "get hexadecimal valueof \"${exp}\"" 3469 gdb_expect { 3470 -re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" { 3471 set val $expect_out(1,string) 3472 pass "$test" 3473 } 3474 timeout { 3475 set val ${default} 3476 fail "$test (timeout)" 3477 } 3478 } 3479 return ${val} 3480} 3481 3482proc get_sizeof { type default } { 3483 return [get_integer_valueof "sizeof (${type})" $default] 3484} 3485 3486# Log gdb command line and script if requested. 3487if {[info exists TRANSCRIPT]} { 3488 rename send_gdb real_send_gdb 3489 rename remote_spawn real_remote_spawn 3490 rename remote_close real_remote_close 3491 3492 global gdb_transcript 3493 set gdb_transcript "" 3494 3495 global gdb_trans_count 3496 set gdb_trans_count 1 3497 3498 proc remote_spawn {args} { 3499 global gdb_transcript gdb_trans_count outdir 3500 3501 if {$gdb_transcript != ""} { 3502 close $gdb_transcript 3503 } 3504 set gdb_transcript [open [file join $outdir transcript.$gdb_trans_count] w] 3505 puts $gdb_transcript [lindex $args 1] 3506 incr gdb_trans_count 3507 3508 return [uplevel real_remote_spawn $args] 3509 } 3510 3511 proc remote_close {args} { 3512 global gdb_transcript 3513 3514 if {$gdb_transcript != ""} { 3515 close $gdb_transcript 3516 set gdb_transcript "" 3517 } 3518 3519 return [uplevel real_remote_close $args] 3520 } 3521 3522 proc send_gdb {args} { 3523 global gdb_transcript 3524 3525 if {$gdb_transcript != ""} { 3526 puts -nonewline $gdb_transcript [lindex $args 0] 3527 } 3528 3529 return [uplevel real_send_gdb $args] 3530 } 3531} 3532 3533proc core_find {binfile {deletefiles {}} {arg ""}} { 3534 global objdir subdir 3535 3536 set destcore "$binfile.core" 3537 file delete $destcore 3538 3539 # Create a core file named "$destcore" rather than just "core", to 3540 # avoid problems with sys admin types that like to regularly prune all 3541 # files named "core" from the system. 3542 # 3543 # Arbitrarily try setting the core size limit to "unlimited" since 3544 # this does not hurt on systems where the command does not work and 3545 # allows us to generate a core on systems where it does. 3546 # 3547 # Some systems append "core" to the name of the program; others append 3548 # the name of the program to "core"; still others (like Linux, as of 3549 # May 2003) create cores named "core.PID". In the latter case, we 3550 # could have many core files lying around, and it may be difficult to 3551 # tell which one is ours, so let's run the program in a subdirectory. 3552 set found 0 3553 set coredir "${objdir}/${subdir}/coredir.[getpid]" 3554 file mkdir $coredir 3555 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile} ${arg}; true) >/dev/null 2>&1\"" 3556 # remote_exec host "${binfile}" 3557 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" { 3558 if [remote_file build exists $i] { 3559 remote_exec build "mv $i $destcore" 3560 set found 1 3561 } 3562 } 3563 # Check for "core.PID". 3564 if { $found == 0 } { 3565 set names [glob -nocomplain -directory $coredir core.*] 3566 if {[llength $names] == 1} { 3567 set corefile [file join $coredir [lindex $names 0]] 3568 remote_exec build "mv $corefile $destcore" 3569 set found 1 3570 } 3571 } 3572 if { $found == 0 } { 3573 # The braindamaged HPUX shell quits after the ulimit -c above 3574 # without executing ${binfile}. So we try again without the 3575 # ulimit here if we didn't find a core file above. 3576 # Oh, I should mention that any "braindamaged" non-Unix system has 3577 # the same problem. I like the cd bit too, it's really neat'n stuff. 3578 catch "system \"(cd ${objdir}/${subdir}; ${binfile}; true) >/dev/null 2>&1\"" 3579 foreach i "${objdir}/${subdir}/core ${objdir}/${subdir}/core.coremaker.c ${binfile}.core" { 3580 if [remote_file build exists $i] { 3581 remote_exec build "mv $i $destcore" 3582 set found 1 3583 } 3584 } 3585 } 3586 3587 # Try to clean up after ourselves. 3588 foreach deletefile $deletefiles { 3589 remote_file build delete [file join $coredir $deletefile] 3590 } 3591 remote_exec build "rmdir $coredir" 3592 3593 if { $found == 0 } { 3594 warning "can't generate a core file - core tests suppressed - check ulimit -c" 3595 return "" 3596 } 3597 return $destcore 3598} 3599