1 # Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
2 # 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # This file was written by Fred Fish. (fnf@cygnus.com)
19 # Generic gdb subroutines that should work for any target. If these
20 # need to be modified for any target, it can be done with a variable
21 # or by passing arguments.
24 # Tests would fail, logs on get_compiler_info() would be missing.
25 send_error "`site.exp' not found, run `make site.exp'!\n"
33 if [info exists TOOL_EXECUTABLE] {
34 set GDB $TOOL_EXECUTABLE;
36 if ![info exists GDB] {
37 if ![is_remote host] {
38 set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
40 set GDB [transform gdb];
43 verbose "using GDB = $GDB" 2
46 if ![info exists GDBFLAGS] {
49 verbose "using GDBFLAGS = $GDBFLAGS" 2
51 # The variable gdb_prompt is a regexp which matches the gdb prompt.
52 # Set it if it is not already set.
54 if ![info exists gdb_prompt] then {
55 set gdb_prompt "\[(\]gdb\[)\]"
58 # The variable fullname_syntax_POSIX is a regexp which matches a POSIX
59 # absolute path ie. /foo/
60 set fullname_syntax_POSIX "/.*/"
61 # The variable fullname_syntax_UNC is a regexp which matches a Windows
62 # UNC path ie. \\D\foo\
63 set fullname_syntax_UNC {\\\\[^\\]+\\.+\\}
64 # The variable fullname_syntax_DOS_CASE is a regexp which matches a
65 # particular DOS case that GDB most likely will output
66 # ie. \foo\, but don't match \\.*\
67 set fullname_syntax_DOS_CASE {\\[^\\].*\\}
68 # The variable fullname_syntax_DOS is a regexp which matches a DOS path
69 # ie. a:\foo\ && a:foo\
70 set fullname_syntax_DOS {[a-zA-Z]:.*\\}
71 # The variable fullname_syntax is a regexp which matches what GDB considers
72 # an absolute path. It is currently debatable if the Windows style paths
73 # d:foo and \abc should be considered valid as an absolute path.
74 # Also, the purpse of this regexp is not to recognize a well formed
75 # absolute path, but to say with certainty that a path is absolute.
76 set fullname_syntax "($fullname_syntax_POSIX|$fullname_syntax_UNC|$fullname_syntax_DOS_CASE|$fullname_syntax_DOS)"
78 # Needed for some tests under Cygwin.
82 if ![info exists env(EXEEXT)] {
85 set EXEEXT $env(EXEEXT)
90 ### Only procedures should come after this point.
93 # gdb_version -- extract and print the version number of GDB
95 proc default_gdb_version {} {
99 set fileid [open "gdb_cmd" w];
102 set cmdfile [remote_download host "gdb_cmd"];
103 set output [remote_exec host "$GDB -nw --command $cmdfile"]
104 remote_file build delete "gdb_cmd";
105 remote_file host delete "$cmdfile";
106 set tmp [lindex $output 1];
108 regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
109 if ![is_remote host] {
110 clone_output "[which $GDB] version $version $GDBFLAGS\n"
112 clone_output "$GDB on remote host version $version $GDBFLAGS\n"
116 proc gdb_version { } {
117 return [default_gdb_version];
121 # gdb_unload -- unload a file if one is loaded
130 -re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue }
131 -re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue }
132 -re "A program is being debugged already..*Kill it.*y or n. $"\
134 verbose "\t\tKilling previous program being debugged"
137 -re "Discard symbol table from .*y or n.*$" {
141 -re "$gdb_prompt $" {}
143 perror "couldn't unload file in $GDB (timed out)."
149 # Many of the tests depend on setting breakpoints at various places and
150 # running until that breakpoint is reached. At times, we want to start
151 # with a clean-slate with respect to breakpoints, so this utility proc
152 # lets us do this without duplicating this code everywhere.
155 proc delete_breakpoints {} {
158 # we need a larger timeout value here or this thing just confuses
159 # itself. May need a better implementation if possible. - guo
161 send_gdb "delete breakpoints\n"
163 -re "Delete all breakpoints.*y or n.*$" {
167 -re "$gdb_prompt $" { # This happens if there were no breakpoints
169 timeout { perror "Delete all breakpoints in delete_breakpoints (timeout)" ; return }
171 send_gdb "info breakpoints\n"
173 -re "No breakpoints or watchpoints..*$gdb_prompt $" {}
174 -re "$gdb_prompt $" { perror "breakpoints not deleted" ; return }
175 -re "Delete all breakpoints.*or n.*$" {
179 timeout { perror "info breakpoints (timeout)" ; return }
185 # Generic run command.
187 # The second pattern below matches up to the first newline *only*.
188 # Using ``.*$'' could swallow up output that we attempt to match
191 proc gdb_run_cmd {args} {
194 if [target_info exists gdb_init_command] {
195 send_gdb "[target_info gdb_init_command]\n";
197 -re "$gdb_prompt $" { }
199 perror "gdb_init_command for target failed";
205 if [target_info exists use_gdb_stub] {
206 if [target_info exists gdb,do_reload_on_run] {
207 if { [gdb_reload] != 0 } {
210 send_gdb "continue\n";
212 -re "Continu\[^\r\n\]*\[\r\n\]" {}
218 if [target_info exists gdb,start_symbol] {
219 set start [target_info gdb,start_symbol];
223 send_gdb "jump *$start\n"
225 while { $start_attempt } {
226 # Cap (re)start attempts at three to ensure that this loop
227 # always eventually fails. Don't worry about trying to be
228 # clever and not send a command when it has failed.
229 if [expr $start_attempt > 3] {
230 perror "Jump to start() failed (retry count exceeded)";
233 set start_attempt [expr $start_attempt + 1];
235 -re "Continuing at \[^\r\n\]*\[\r\n\]" {
238 -re "No symbol \"_start\" in current.*$gdb_prompt $" {
239 perror "Can't find start symbol to run in gdb_run";
242 -re "No symbol \"start\" in current.*$gdb_prompt $" {
243 send_gdb "jump *_start\n";
245 -re "No symbol.*context.*$gdb_prompt $" {
248 -re "Line.* Jump anyway.*y or n. $" {
251 -re "The program is not being run.*$gdb_prompt $" {
252 if { [gdb_reload] != 0 } {
255 send_gdb "jump *$start\n";
258 perror "Jump to start() failed (timeout)";
263 if [target_info exists gdb_stub] {
265 -re "$gdb_prompt $" {
266 send_gdb "continue\n"
273 if [target_info exists gdb,do_reload_on_run] {
274 if { [gdb_reload] != 0 } {
278 send_gdb "run $args\n"
279 # This doesn't work quite right yet.
280 # Use -notransfer here so that test cases (like chng-sym.exp)
281 # may test for additional start-up messages.
283 -re "The program .* has been started already.*y or n. $" {
287 -notransfer -re "Starting program: \[^\r\n\]*" {}
291 # Generic start command. Return 0 if we could start the program, -1
294 proc gdb_start_cmd {args} {
297 if [target_info exists gdb_init_command] {
298 send_gdb "[target_info gdb_init_command]\n";
300 -re "$gdb_prompt $" { }
302 perror "gdb_init_command for target failed";
308 if [target_info exists use_gdb_stub] {
312 send_gdb "start $args\n"
314 -re "The program .* has been started already.*y or n. $" {
318 # Use -notransfer here so that test cases (like chng-sym.exp)
319 # may test for additional start-up messages.
320 -notransfer -re "Starting program: \[^\r\n\]*" {
327 # Set a breakpoint at FUNCTION. If there is an additional argument it is
328 # a list of options; the supported options are allow-pending and temporary.
330 proc gdb_breakpoint { function args } {
334 set pending_response n
335 if {[lsearch -exact [lindex $args 0] allow-pending] != -1} {
336 set pending_response y
339 set break_command "break"
340 if {[lsearch -exact [lindex $args 0] temporary] != -1} {
341 set break_command "tbreak"
344 send_gdb "$break_command $function\n"
345 # The first two regexps are what we get with -g, the third is without -g.
347 -re "Breakpoint \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {}
348 -re "Breakpoint \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {}
349 -re "Breakpoint \[0-9\]* at .*$gdb_prompt $" {}
350 -re "Breakpoint \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" {
351 if {$pending_response == "n"} {
352 fail "setting breakpoint at $function"
356 -re "Make breakpoint pending.*y or \\\[n\\\]. $" {
357 send_gdb "$pending_response\n"
360 -re "$gdb_prompt $" { fail "setting breakpoint at $function" ; return 0 }
361 timeout { fail "setting breakpoint at $function (timeout)" ; return 0 }
366 # Set breakpoint at function and run gdb until it breaks there.
367 # Since this is the only breakpoint that will be set, if it stops
368 # at a breakpoint, we will assume it is the one we want. We can't
369 # just compare to "function" because it might be a fully qualified,
370 # single quoted C++ function specifier. If there's an additional argument,
371 # pass it to gdb_breakpoint.
373 proc runto { function args } {
379 if ![gdb_breakpoint $function [lindex $args 0]] {
385 # the "at foo.c:36" output we get with -g.
386 # the "in func" output we get without -g.
388 -re "Break.* at .*:$decimal.*$gdb_prompt $" {
391 -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" {
394 -re "$gdb_prompt $" {
395 fail "running to $function in runto"
399 fail "running to $function in runto (timeout)"
407 # runto_main -- ask gdb to run until we hit a breakpoint at main.
408 # The case where the target uses stubs has to be handled
409 # specially--if it uses stubs, assuming we hit
410 # breakpoint() and just step out of the function.
412 proc runto_main { } {
416 if ![target_info exists gdb_stub] {
428 ### Continue, and expect to hit a breakpoint.
429 ### Report a pass or fail, depending on whether it seems to have
430 ### worked. Use NAME as part of the test name; each call to
431 ### continue_to_breakpoint should use a NAME which is unique within
433 proc gdb_continue_to_breakpoint {name} {
435 set full_name "continue to breakpoint: $name"
437 send_gdb "continue\n"
439 -re "Breakpoint .* at .*\r\n$gdb_prompt $" {
442 -re ".*$gdb_prompt $" {
446 fail "$full_name (timeout)"
452 # gdb_internal_error_resync:
454 # Answer the questions GDB asks after it reports an internal error
455 # until we get back to a GDB prompt. Decline to quit the debugging
456 # session, and decline to create a core file. Return non-zero if the
459 # This procedure just answers whatever questions come up until it sees
460 # a GDB prompt; it doesn't require you to have matched the input up to
461 # any specific point. However, it only answers questions it sees in
462 # the output itself, so if you've matched a question, you had better
463 # answer it yourself before calling this.
465 # You can use this function thus:
469 # -re ".*A problem internal to GDB has been detected" {
470 # gdb_internal_error_resync
475 proc gdb_internal_error_resync {} {
479 while {$count < 10} {
481 -re "Quit this debugging session\\? \\(y or n\\) $" {
485 -re "Create a core file of GDB\\? \\(y or n\\) $" {
489 -re "$gdb_prompt $" {
490 # We're resynchronized.
494 perror "Could not resync from internal error (timeout)"
499 perror "Could not resync from internal error (resync count exceeded)"
504 # gdb_test_multiple COMMAND MESSAGE EXPECT_ARGUMENTS
505 # Send a command to gdb; test the result.
507 # COMMAND is the command to execute, send to GDB with send_gdb. If
508 # this is the null string no command is sent.
509 # MESSAGE is a message to be printed with the built-in failure patterns
510 # if one of them matches. If MESSAGE is empty COMMAND will be used.
511 # EXPECT_ARGUMENTS will be fed to expect in addition to the standard
512 # patterns. Pattern elements will be evaluated in the caller's
513 # context; action elements will be executed in the caller's context.
514 # Unlike patterns for gdb_test, these patterns should generally include
515 # the final newline and prompt.
518 # 1 if the test failed, according to a built-in failure pattern
519 # 0 if only user-supplied patterns matched
520 # -1 if there was an internal error.
522 # You can use this function thus:
524 # gdb_test_multiple "print foo" "test foo" {
525 # -re "expected output 1" {
528 # -re "expected output 2" {
533 # The standard patterns, such as "Program exited..." and "A problem
534 # ...", all being implicitly appended to that list.
536 proc gdb_test_multiple { command message user_code } {
540 upvar timeout timeout
541 upvar expect_out expect_out
543 if { $message == "" } {
547 # TCL/EXPECT WART ALERT
548 # Expect does something very strange when it receives a single braced
549 # argument. It splits it along word separators and performs substitutions.
550 # This means that { "[ab]" } is evaluated as "[ab]", but { "\[ab\]" } is
551 # evaluated as "\[ab\]". But that's not how TCL normally works; inside a
552 # double-quoted list item, "\[ab\]" is just a long way of representing
553 # "[ab]", because the backslashes will be removed by lindex.
555 # Unfortunately, there appears to be no easy way to duplicate the splitting
556 # that expect will do from within TCL. And many places make use of the
557 # "\[0-9\]" construct, so we need to support that; and some places make use
558 # of the "[func]" construct, so we need to support that too. In order to
559 # get this right we have to substitute quoted list elements differently
560 # from braced list elements.
562 # We do this roughly the same way that Expect does it. We have to use two
563 # lists, because if we leave unquoted newlines in the argument to uplevel
564 # they'll be treated as command separators, and if we escape newlines
565 # we mangle newlines inside of command blocks. This assumes that the
566 # input doesn't contain a pattern which contains actual embedded newlines
569 regsub -all {\n} ${user_code} { } subst_code
570 set subst_code [uplevel list $subst_code]
572 set processed_code ""
574 set expecting_action 0
575 foreach item $user_code subst_item $subst_code {
576 if { $item == "-n" || $item == "-notransfer" || $item == "-nocase" } {
577 lappend processed_code $item
580 if {$item == "-indices" || $item == "-re" || $item == "-ex"} {
581 lappend processed_code $item
584 if { $expecting_action } {
585 lappend processed_code "uplevel [list $item]"
586 set expecting_action 0
587 # Cosmetic, no effect on the list.
588 append processed_code "\n"
591 set expecting_action 1
592 lappend processed_code $subst_item
593 if {$patterns != ""} {
596 append patterns "\"$subst_item\""
599 # Also purely cosmetic.
600 regsub -all {\r} $patterns {\\r} patterns
601 regsub -all {\n} $patterns {\\n} patterns
604 send_user "Sending \"$command\" to gdb\n"
605 send_user "Looking to match \"$patterns\"\n"
606 send_user "Message is \"$message\"\n"
610 set string "${command}\n";
611 if { $command != "" } {
612 while { "$string" != "" } {
613 set foo [string first "\n" "$string"];
614 set len [string length "$string"];
615 if { $foo < [expr $len - 1] } {
616 set str [string range "$string" 0 $foo];
617 if { [send_gdb "$str"] != "" } {
618 global suppress_flag;
620 if { ! $suppress_flag } {
621 perror "Couldn't send $command to GDB.";
626 # since we're checking if each line of the multi-line
627 # command are 'accepted' by GDB here,
628 # we need to set -notransfer expect option so that
629 # command output is not lost for pattern matching
632 -notransfer -re "\[\r\n\]" { verbose "partial: match" 3 }
633 timeout { verbose "partial: timeout" 3 }
635 set string [string range "$string" [expr $foo + 1] end];
640 if { "$string" != "" } {
641 if { [send_gdb "$string"] != "" } {
642 global suppress_flag;
644 if { ! $suppress_flag } {
645 perror "Couldn't send $command to GDB.";
653 if [target_info exists gdb,timeout] {
654 set tmt [target_info gdb,timeout];
656 if [info exists timeout] {
660 if [info exists timeout] {
669 -re ".*A problem internal to GDB has been detected" {
670 fail "$message (GDB internal error)"
671 gdb_internal_error_resync
673 -re "\\*\\*\\* DOSEXIT code.*" {
674 if { $message != "" } {
677 gdb_suppress_entire_file "GDB died";
681 append code $processed_code
683 -re "Ending remote debugging.*$gdb_prompt $" {
684 if ![isnative] then {
685 warning "Can`t communicate to remote target."
691 -re "Undefined\[a-z\]* command:.*$gdb_prompt $" {
692 perror "Undefined command \"$command\"."
696 -re "Ambiguous command.*$gdb_prompt $" {
697 perror "\"$command\" is not a unique command name."
701 -re "Program exited with code \[0-9\]+.*$gdb_prompt $" {
702 if ![string match "" $message] then {
703 set errmsg "$message (the program exited)"
705 set errmsg "$command (the program exited)"
710 -re "EXIT code \[0-9\r\n\]+Program exited normally.*$gdb_prompt $" {
711 if ![string match "" $message] then {
712 set errmsg "$message (the program exited)"
714 set errmsg "$command (the program exited)"
719 -re "The program is not being run.*$gdb_prompt $" {
720 if ![string match "" $message] then {
721 set errmsg "$message (the program is no longer running)"
723 set errmsg "$command (the program is no longer running)"
728 -re "\r\n$gdb_prompt $" {
729 if ![string match "" $message] then {
736 perror "Window too small."
740 -re "\\(y or n\\) " {
742 perror "Got interactive prompt."
747 perror "Process no longer exists"
748 if { $message != "" } {
754 perror "internal buffer is full."
759 if ![string match "" $message] then {
760 fail "$message (timeout)"
767 set code [catch {gdb_expect $tmt $code} string]
769 global errorInfo errorCode;
770 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
771 } elseif {$code == 2} {
772 return -code return $string
773 } elseif {$code == 3} {
775 } elseif {$code > 4} {
776 return -code $code $string
781 # gdb_test COMMAND PATTERN MESSAGE QUESTION RESPONSE
782 # Send a command to gdb; test the result.
784 # COMMAND is the command to execute, send to GDB with send_gdb. If
785 # this is the null string no command is sent.
786 # PATTERN is the pattern to match for a PASS, and must NOT include
787 # the \r\n sequence immediately before the gdb prompt.
788 # MESSAGE is an optional message to be printed. If this is
789 # omitted, then the pass/fail messages use the command string as the
790 # message. (If this is the empty string, then sometimes we don't
791 # call pass or fail at all; I don't understand this at all.)
792 # QUESTION is a question GDB may ask in response to COMMAND, like
794 # RESPONSE is the response to send if QUESTION appears.
797 # 1 if the test failed,
798 # 0 if the test passes,
799 # -1 if there was an internal error.
801 proc gdb_test { args } {
805 upvar timeout timeout
807 if [llength $args]>2 then {
808 set message [lindex $args 2]
810 set message [lindex $args 0]
812 set command [lindex $args 0]
813 set pattern [lindex $args 1]
815 if [llength $args]==5 {
816 set question_string [lindex $args 3];
817 set response_string [lindex $args 4];
819 set question_string "^FOOBAR$"
822 return [gdb_test_multiple $command $message {
823 -re "\[\r\n\]*($pattern)\[\r\n\]+$gdb_prompt $" {
824 if ![string match "" $message] then {
828 -re "(${question_string})$" {
829 send_gdb "$response_string\n";
835 # Test that a command gives an error. For pass or fail, return
836 # a 1 to indicate that more tests can proceed. However a timeout
837 # is a serious error, generates a special fail message, and causes
838 # a 0 to be returned to indicate that more tests are likely to fail
841 proc test_print_reject { args } {
845 if [llength $args]==2 then {
846 set expectthis [lindex $args 1]
848 set expectthis "should never match this bogus string"
850 set sendthis [lindex $args 0]
852 send_user "Sending \"$sendthis\" to gdb\n"
853 send_user "Looking to match \"$expectthis\"\n"
855 send_gdb "$sendthis\n"
856 #FIXME: Should add timeout as parameter.
858 -re "A .* in expression.*\\.*$gdb_prompt $" {
859 pass "reject $sendthis"
862 -re "Invalid syntax in expression.*$gdb_prompt $" {
863 pass "reject $sendthis"
866 -re "Junk after end of expression.*$gdb_prompt $" {
867 pass "reject $sendthis"
870 -re "Invalid number.*$gdb_prompt $" {
871 pass "reject $sendthis"
874 -re "Invalid character constant.*$gdb_prompt $" {
875 pass "reject $sendthis"
878 -re "No symbol table is loaded.*$gdb_prompt $" {
879 pass "reject $sendthis"
882 -re "No symbol .* in current context.*$gdb_prompt $" {
883 pass "reject $sendthis"
886 -re "Unmatched single quote.*$gdb_prompt $" {
887 pass "reject $sendthis"
890 -re "A character constant must contain at least one character.*$gdb_prompt $" {
891 pass "reject $sendthis"
894 -re "$expectthis.*$gdb_prompt $" {
895 pass "reject $sendthis"
898 -re ".*$gdb_prompt $" {
899 fail "reject $sendthis"
903 fail "reject $sendthis (eof or timeout)"
909 # Given an input string, adds backslashes as needed to create a
910 # regexp that will match the string.
912 proc string_to_regexp {str} {
914 regsub -all {[]*+.|()^$\[\\]} $str {\\&} result
918 # Same as gdb_test, but the second parameter is not a regexp,
919 # but a string that must match exactly.
921 proc gdb_test_exact { args } {
922 upvar timeout timeout
924 set command [lindex $args 0]
926 # This applies a special meaning to a null string pattern. Without
927 # this, "$pattern\r\n$gdb_prompt $" will match anything, including error
928 # messages from commands that should have no output except a new
929 # prompt. With this, only results of a null string will match a null
932 set pattern [lindex $args 1]
933 if [string match $pattern ""] {
934 set pattern [string_to_regexp [lindex $args 0]]
936 set pattern [string_to_regexp [lindex $args 1]]
939 # It is most natural to write the pattern argument with only
940 # embedded \n's, especially if you are trying to avoid Tcl quoting
941 # problems. But gdb_expect really wants to see \r\n in patterns. So
942 # transform the pattern here. First transform \r\n back to \n, in
943 # case some users of gdb_test_exact already do the right thing.
944 regsub -all "\r\n" $pattern "\n" pattern
945 regsub -all "\n" $pattern "\r\n" pattern
946 if [llength $args]==3 then {
947 set message [lindex $args 2]
952 return [gdb_test $command $pattern $message]
955 proc gdb_reinitialize_dir { subdir } {
958 if [is_remote host] {
963 -re "Reinitialize source path to empty.*y or n. " {
966 -re "Source directories searched.*$gdb_prompt $" {
967 send_gdb "dir $subdir\n"
969 -re "Source directories searched.*$gdb_prompt $" {
970 verbose "Dir set to $subdir"
972 -re "$gdb_prompt $" {
973 perror "Dir \"$subdir\" failed."
977 -re "$gdb_prompt $" {
978 perror "Dir \"$subdir\" failed."
982 -re "$gdb_prompt $" {
983 perror "Dir \"$subdir\" failed."
989 # gdb_exit -- exit the GDB, killing the target program if necessary
991 proc default_gdb_exit {} {
997 gdb_stop_suppressing_tests;
999 if ![info exists gdb_spawn_id] {
1003 verbose "Quitting $GDB $GDBFLAGS"
1005 if { [is_remote host] && [board_info host exists fileid] } {
1012 -re "DOSEXIT code" { }
1017 if ![is_remote host] {
1023 # Load a file into the debugger.
1024 # The return value is 0 for success, -1 for failure.
1026 # This procedure also set the global variable GDB_FILE_CMD_DEBUG_INFO
1027 # to one of these values:
1029 # debug file was loaded successfully and has debug information
1030 # nodebug file was loaded successfully and has no debug information
1031 # fail file was not loaded
1033 # I tried returning this information as part of the return value,
1034 # but ran into a mess because of the many re-implementations of
1035 # gdb_load in config/*.exp.
1037 # TODO: gdb.base/sepdebug.exp and gdb.stabs/weird.exp might be able to use
1038 # this if they can get more information set.
1040 proc gdb_file_cmd { arg } {
1044 global last_loaded_file
1046 set last_loaded_file $arg
1048 # Set whether debug info was found.
1049 # Default to "fail".
1050 global gdb_file_cmd_debug_info
1051 set gdb_file_cmd_debug_info "fail"
1053 if [is_remote host] {
1054 set arg [remote_download host $arg]
1056 perror "download failed"
1061 # The file command used to kill the remote target. For the benefit
1062 # of the testsuite, preserve this behavior.
1065 -re "Kill the program being debugged. .y or n. $" {
1067 verbose "\t\tKilling previous program being debugged"
1070 -re "$gdb_prompt $" {
1075 send_gdb "file $arg\n"
1077 -re "Reading symbols from.*no debugging symbols found.*done.*$gdb_prompt $" {
1078 verbose "\t\tLoaded $arg into the $GDB with no debugging symbols"
1079 set gdb_file_cmd_debug_info "nodebug"
1082 -re "Reading symbols from.*done.*$gdb_prompt $" {
1083 verbose "\t\tLoaded $arg into the $GDB"
1084 set gdb_file_cmd_debug_info "debug"
1087 -re "Load new symbol table from \".*\".*y or n. $" {
1090 -re "Reading symbols from.*done.*$gdb_prompt $" {
1091 verbose "\t\tLoaded $arg with new symbol table into $GDB"
1092 set gdb_file_cmd_debug_info "debug"
1096 perror "(timeout) Couldn't load $arg, other program already loaded."
1101 -re "No such file or directory.*$gdb_prompt $" {
1102 perror "($arg) No such file or directory"
1105 -re "$gdb_prompt $" {
1106 perror "couldn't load $arg into $GDB."
1110 perror "couldn't load $arg into $GDB (timed out)."
1114 # This is an attempt to detect a core dump, but seems not to
1115 # work. Perhaps we need to match .* followed by eof, in which
1116 # gdb_expect does not seem to have a way to do that.
1117 perror "couldn't load $arg into $GDB (end of file)."
1124 # start gdb -- start gdb running, default procedure
1126 # When running over NFS, particularly if running many simultaneous
1127 # tests on different hosts all using the same server, things can
1128 # get really slow. Give gdb at least 3 minutes to start up.
1130 proc default_gdb_start { } {
1136 global gdb_spawn_id;
1138 gdb_stop_suppressing_tests;
1140 verbose "Spawning $GDB -nw $GDBFLAGS"
1142 if [info exists gdb_spawn_id] {
1146 if ![is_remote host] {
1147 if { [which $GDB] == 0 } then {
1148 perror "$GDB does not exist."
1152 set res [remote_spawn host "$GDB -nw $GDBFLAGS [host_info gdb_opts]"];
1153 if { $res < 0 || $res == "" } {
1154 perror "Spawning $GDB failed."
1158 -re "\[\r\n\]$gdb_prompt $" {
1159 verbose "GDB initialized."
1161 -re "$gdb_prompt $" {
1162 perror "GDB never initialized."
1166 perror "(timeout) GDB never initialized after 10 seconds."
1171 set gdb_spawn_id -1;
1172 # force the height to "unlimited", so no pagers get used
1174 send_gdb "set height 0\n"
1176 -re "$gdb_prompt $" {
1177 verbose "Setting height to 0." 2
1180 warning "Couldn't set the height to 0"
1183 # force the width to "unlimited", so no wraparound occurs
1184 send_gdb "set width 0\n"
1186 -re "$gdb_prompt $" {
1187 verbose "Setting width to 0." 2
1190 warning "Couldn't set the width to 0."
1196 # Return a 1 for configurations for which we don't even want to try to
1199 proc skip_cplus_tests {} {
1200 if { [istarget "h8300-*-*"] } {
1204 # The C++ IO streams are too large for HC11/HC12 and are thus not
1205 # available. The gdb C++ tests use them and don't compile.
1206 if { [istarget "m6811-*-*"] } {
1209 if { [istarget "m6812-*-*"] } {
1215 # Return a 1 if I don't even want to try to test FORTRAN.
1217 proc skip_fortran_tests {} {
1221 # Return a 1 if we should skip shared library tests.
1223 proc skip_shlib_tests {} {
1224 # Run the shared library tests on native systems.
1229 # An abbreviated list of remote targets where we should be able to
1230 # run shared library tests.
1231 if {([istarget *-*-linux*]
1232 || [istarget *-*-*bsd*]
1233 || [istarget *-*-solaris2*]
1234 || [istarget arm*-*-symbianelf*]
1235 || [istarget *-*-mingw*]
1236 || [istarget *-*-cygwin*]
1237 || [istarget *-*-pe*])} {
1244 # Run a test on the target to see if it supports vmx hardware. Return 0 if so,
1245 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
1247 proc skip_altivec_tests {} {
1248 global skip_vmx_tests_saved
1249 global srcdir subdir gdb_prompt
1251 # Use the cached value, if it exists.
1252 set me "skip_altivec_tests"
1253 if [info exists skip_vmx_tests_saved] {
1254 verbose "$me: returning saved $skip_vmx_tests_saved" 2
1255 return $skip_vmx_tests_saved
1258 # Some simulators are known to not support VMX instructions.
1259 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
1260 verbose "$me: target known to not support VMX, returning 1" 2
1261 return [set skip_vmx_tests_saved 1]
1264 # Make sure we have a compiler that understands altivec.
1265 set compile_flags {debug nowarnings}
1266 if [get_compiler_info not-used] {
1267 warning "Could not get compiler info"
1270 if [test_compiler_info gcc*] {
1271 set compile_flags "$compile_flags additional_flags=-maltivec"
1272 } elseif [test_compiler_info xlc*] {
1273 set compile_flags "$compile_flags additional_flags=-qaltivec"
1275 verbose "Could not compile with altivec support, returning 1" 2
1279 # Set up, compile, and execute a test program containing VMX instructions.
1280 # Include the current process ID in the file names to prevent conflicts
1281 # with invocations for multiple testsuites.
1285 set f [open $src "w"]
1286 puts $f "int main() {"
1287 puts $f "#ifdef __MACH__"
1288 puts $f " asm volatile (\"vor v0,v0,v0\");"
1290 puts $f " asm volatile (\"vor 0,0,0\");"
1292 puts $f " return 0; }"
1295 verbose "$me: compiling testfile $src" 2
1296 set lines [gdb_compile $src $exe executable $compile_flags]
1299 if ![string match "" $lines] then {
1300 verbose "$me: testfile compilation failed, returning 1" 2
1301 return [set skip_vmx_tests_saved 1]
1304 # No error message, compilation succeeded so now run it via gdb.
1308 gdb_reinitialize_dir $srcdir/$subdir
1312 -re ".*Illegal instruction.*${gdb_prompt} $" {
1313 verbose -log "\n$me altivec hardware not detected"
1314 set skip_vmx_tests_saved 1
1316 -re ".*Program exited normally.*${gdb_prompt} $" {
1317 verbose -log "\n$me: altivec hardware detected"
1318 set skip_vmx_tests_saved 0
1321 warning "\n$me: default case taken"
1322 set skip_vmx_tests_saved 1
1326 remote_file build delete $exe
1328 verbose "$me: returning $skip_vmx_tests_saved" 2
1329 return $skip_vmx_tests_saved
1332 # Skip all the tests in the file if you are not on an hppa running
1335 proc skip_hp_tests {} {
1336 eval set skip_hp [ expr ![isnative] || ![istarget "hppa*-*-hpux*"] ]
1337 verbose "Skip hp tests is $skip_hp"
1341 set compiler_info "unknown"
1343 set hp_cc_compiler 0
1344 set hp_aCC_compiler 0
1346 # Figure out what compiler I am using.
1348 # BINFILE is a "compiler information" output file. This implementation
1349 # does not use BINFILE.
1351 # ARGS can be empty or "C++". If empty, "C" is assumed.
1353 # There are several ways to do this, with various problems.
1355 # [ gdb_compile -E $ifile -o $binfile.ci ]
1356 # source $binfile.ci
1358 # Single Unix Spec v3 says that "-E -o ..." together are not
1359 # specified. And in fact, the native compiler on hp-ux 11 (among
1360 # others) does not work with "-E -o ...". Most targets used to do
1361 # this, and it mostly worked, because it works with gcc.
1363 # [ catch "exec $compiler -E $ifile > $binfile.ci" exec_output ]
1364 # source $binfile.ci
1366 # This avoids the problem with -E and -o together. This almost works
1367 # if the build machine is the same as the host machine, which is
1368 # usually true of the targets which are not gcc. But this code does
1369 # not figure which compiler to call, and it always ends up using the C
1370 # compiler. Not good for setting hp_aCC_compiler. Targets
1371 # hppa*-*-hpux* and mips*-*-irix* used to do this.
1373 # [ gdb_compile -E $ifile > $binfile.ci ]
1374 # source $binfile.ci
1376 # dejagnu target_compile says that it supports output redirection,
1377 # but the code is completely different from the normal path and I
1378 # don't want to sweep the mines from that path. So I didn't even try
1381 # set cppout [ gdb_compile $ifile "" preprocess $args quiet ]
1384 # I actually do this for all targets now. gdb_compile runs the right
1385 # compiler, and TCL captures the output, and I eval the output.
1387 # Unfortunately, expect logs the output of the command as it goes by,
1388 # and dejagnu helpfully prints a second copy of it right afterwards.
1389 # So I turn off expect logging for a moment.
1391 # [ gdb_compile $ifile $ciexe_file executable $args ]
1392 # [ remote_exec $ciexe_file ]
1393 # [ source $ci_file.out ]
1395 # I could give up on -E and just do this.
1396 # I didn't get desperate enough to try this.
1398 # -- chastain 2004-01-06
1400 proc get_compiler_info {binfile args} {
1401 # For compiler.c and compiler.cc
1404 # I am going to play with the log to keep noise out.
1408 # These come from compiler.c or compiler.cc
1409 global compiler_info
1411 # Legacy global data symbols.
1413 global hp_cc_compiler
1414 global hp_aCC_compiler
1416 # Choose which file to preprocess.
1417 set ifile "${srcdir}/lib/compiler.c"
1418 if { [llength $args] > 0 && [lindex $args 0] == "c++" } {
1419 set ifile "${srcdir}/lib/compiler.cc"
1422 # Run $ifile through the right preprocessor.
1423 # Toggle gdb.log to keep the compiler output out of the log.
1425 set cppout [ gdb_compile "${ifile}" "" preprocess [list "$args" quiet] ]
1426 log_file -a "$outdir/$tool.log"
1430 foreach cppline [ split "$cppout" "\n" ] {
1431 if { [ regexp "^#" "$cppline" ] } {
1433 } elseif { [ regexp "^\[\n\r\t \]*$" "$cppline" ] } {
1435 } elseif { [ regexp "^\[\n\r\t \]*set\[\n\r\t \]" "$cppline" ] } {
1437 verbose "get_compiler_info: $cppline" 2
1441 verbose -log "get_compiler_info: $cppline"
1446 # Reset to unknown compiler if any diagnostics happened.
1448 set compiler_info "unknown"
1451 # Set the legacy symbols.
1453 set hp_cc_compiler 0
1454 set hp_aCC_compiler 0
1455 if { [regexp "^gcc-1-" "$compiler_info" ] } { set gcc_compiled 1 }
1456 if { [regexp "^gcc-2-" "$compiler_info" ] } { set gcc_compiled 2 }
1457 if { [regexp "^gcc-3-" "$compiler_info" ] } { set gcc_compiled 3 }
1458 if { [regexp "^gcc-4-" "$compiler_info" ] } { set gcc_compiled 4 }
1459 if { [regexp "^gcc-5-" "$compiler_info" ] } { set gcc_compiled 5 }
1460 if { [regexp "^hpcc-" "$compiler_info" ] } { set hp_cc_compiler 1 }
1461 if { [regexp "^hpacc-" "$compiler_info" ] } { set hp_aCC_compiler 1 }
1463 # Log what happened.
1464 verbose -log "get_compiler_info: $compiler_info"
1466 # Most compilers will evaluate comparisons and other boolean
1467 # operations to 0 or 1.
1468 uplevel \#0 { set true 1 }
1469 uplevel \#0 { set false 0 }
1471 # Use of aCC results in boolean results being displayed as
1473 if { $hp_aCC_compiler } {
1474 uplevel \#0 { set true true }
1475 uplevel \#0 { set false false }
1481 proc test_compiler_info { {compiler ""} } {
1482 global compiler_info
1484 # if no arg, return the compiler_info string
1486 if [string match "" $compiler] {
1487 if [info exists compiler_info] {
1488 return $compiler_info
1490 perror "No compiler info found."
1494 return [string match $compiler $compiler_info]
1497 set gdb_wrapper_initialized 0
1499 proc gdb_wrapper_init { args } {
1500 global gdb_wrapper_initialized;
1501 global gdb_wrapper_file;
1502 global gdb_wrapper_flags;
1504 if { $gdb_wrapper_initialized == 1 } { return; }
1506 if {[target_info exists needs_status_wrapper] && \
1507 [target_info needs_status_wrapper] != "0"} {
1508 set result [build_wrapper "testglue.o"];
1509 if { $result != "" } {
1510 set gdb_wrapper_file [lindex $result 0];
1511 set gdb_wrapper_flags [lindex $result 1];
1513 warning "Status wrapper failed to build."
1516 set gdb_wrapper_initialized 1
1519 proc gdb_compile {source dest type options} {
1520 global GDB_TESTCASE_OPTIONS;
1521 global gdb_wrapper_file;
1522 global gdb_wrapper_flags;
1523 global gdb_wrapper_initialized;
1525 set outdir [file dirname $dest]
1527 # Add platform-specific options if a shared library was specified using
1528 # "shlib=librarypath" in OPTIONS.
1531 foreach opt $options {
1532 if [regexp {^shlib=(.*)} $opt dummy_var shlib_name] {
1533 if [test_compiler_info "xlc-*"] {
1534 # IBM xlc compiler doesn't accept shared library named other
1535 # than .so: use "-Wl," to bypass this
1536 lappend source "-Wl,$shlib_name"
1537 } elseif { ([istarget "*-*-mingw*"]
1538 || [istarget *-*-cygwin*]
1539 || [istarget *-*-pe*])} {
1540 lappend source "${shlib_name}.a"
1542 lappend source $shlib_name
1544 if {$shlib_found == 0} {
1546 if { ([test_compiler_info "gcc-*"]
1547 && ([istarget "powerpc*-*-aix*"]
1548 || [istarget "rs6000*-*-aix*"] )) } {
1549 lappend options "additional_flags=-L${outdir}"
1550 } elseif { [istarget "mips-sgi-irix*"] } {
1551 lappend options "additional_flags=-rpath ${outdir}"
1554 } elseif { $opt == "shlib_load" } {
1555 if { ([istarget "*-*-mingw*"]
1556 || [istarget *-*-cygwin*]
1557 || [istarget *-*-pe*]
1558 || [istarget arm*-*-symbianelf*]
1559 || [istarget hppa*-*-hpux*])} {
1560 # Do not need anything.
1561 } elseif { [istarget *-*-openbsd*] } {
1562 lappend new_options "additional_flags=-Wl,-rpath,${outdir}"
1564 lappend new_options "libs=-ldl"
1565 lappend new_options "additional_flags=-Wl,-rpath,\\\$ORIGIN"
1568 lappend new_options $opt
1571 set options $new_options
1573 if [target_info exists gdb_stub] {
1574 set options2 { "additional_flags=-Dusestubs" }
1575 lappend options "libs=[target_info gdb_stub]";
1576 set options [concat $options2 $options]
1578 if [target_info exists is_vxworks] {
1579 set options2 { "additional_flags=-Dvxworks" }
1580 lappend options "libs=[target_info gdb_stub]";
1581 set options [concat $options2 $options]
1583 if [info exists GDB_TESTCASE_OPTIONS] {
1584 lappend options "additional_flags=$GDB_TESTCASE_OPTIONS";
1586 verbose "options are $options"
1587 verbose "source is $source $dest $type $options"
1589 if { $gdb_wrapper_initialized == 0 } { gdb_wrapper_init }
1591 if {[target_info exists needs_status_wrapper] && \
1592 [target_info needs_status_wrapper] != "0" && \
1593 [info exists gdb_wrapper_file]} {
1594 lappend options "libs=${gdb_wrapper_file}"
1595 lappend options "ldflags=${gdb_wrapper_flags}"
1598 # Replace the "nowarnings" option with the appropriate additional_flags
1599 # to disable compiler warnings.
1600 set nowarnings [lsearch -exact $options nowarnings]
1601 if {$nowarnings != -1} {
1602 if [target_info exists gdb,nowarnings_flag] {
1603 set flag "additional_flags=[target_info gdb,nowarnings_flag]"
1605 set flag "additional_flags=-w"
1607 set options [lreplace $options $nowarnings $nowarnings $flag]
1610 set result [target_compile $source $dest $type $options];
1612 # Prune uninteresting compiler (and linker) output.
1613 regsub "Creating library file: \[^\r\n\]*\[\r\n\]+" $result "" result
1615 regsub "\[\r\n\]*$" "$result" "" result;
1616 regsub "^\[\r\n\]*" "$result" "" result;
1618 if { $result != "" && [lsearch $options quiet] == -1} {
1619 clone_output "gdb compile failed, $result"
1625 # This is just like gdb_compile, above, except that it tries compiling
1626 # against several different thread libraries, to see which one this
1628 proc gdb_compile_pthreads {source dest type options} {
1630 set why_msg "unrecognized error"
1631 foreach lib {-lpthreads -lpthread -lthread} {
1632 # This kind of wipes out whatever libs the caller may have
1633 # set. Or maybe theirs will override ours. How infelicitous.
1634 set options_with_lib [concat $options [list libs=$lib quiet]]
1635 set ccout [gdb_compile $source $dest $type $options_with_lib]
1636 switch -regexp -- $ccout {
1637 ".*no posix threads support.*" {
1638 set why_msg "missing threads include file"
1641 ".*cannot open -lpthread.*" {
1642 set why_msg "missing runtime threads library"
1644 ".*Can't find library for -lpthread.*" {
1645 set why_msg "missing runtime threads library"
1648 pass "successfully compiled posix threads test case"
1654 if {!$built_binfile} {
1655 unsupported "Couldn't compile $source: ${why_msg}"
1660 # Build a shared library from SOURCES. You must use get_compiler_info
1663 proc gdb_compile_shlib {sources dest options} {
1664 set obj_options $options
1666 switch -glob [test_compiler_info] {
1668 lappend obj_options "additional_flags=-qpic"
1671 if { !([istarget "powerpc*-*-aix*"]
1672 || [istarget "rs6000*-*-aix*"]
1673 || [istarget "*-*-cygwin*"]
1674 || [istarget "*-*-mingw*"]
1675 || [istarget "*-*-pe*"]) } {
1676 lappend obj_options "additional_flags=-fpic"
1680 switch -glob [istarget] {
1682 lappend obj_options "additional_flags=+z"
1685 # Disable SGI compiler's implicit -Dsgi
1686 lappend obj_options "additional_flags=-Usgi"
1689 # don't know what the compiler is...
1695 set outdir [file dirname $dest]
1697 foreach source $sources {
1698 set sourcebase [file tail $source]
1699 if {[gdb_compile $source "${outdir}/${sourcebase}.o" object $obj_options] != ""} {
1702 lappend objects ${outdir}/${sourcebase}.o
1705 if [istarget "hppa*-*-hpux*"] {
1706 remote_exec build "ld -b ${objects} -o ${dest}"
1708 set link_options $options
1709 if [test_compiler_info "xlc-*"] {
1710 lappend link_options "additional_flags=-qmkshrobj"
1712 lappend link_options "additional_flags=-shared"
1714 if { ([istarget "*-*-mingw*"]
1715 || [istarget *-*-cygwin*]
1716 || [istarget *-*-pe*])} {
1717 lappend link_options "additional_flags=-Wl,--out-implib,${dest}.a"
1720 if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} {
1726 # This is just like gdb_compile_pthreads, above, except that we always add the
1727 # objc library for compiling Objective-C programs
1728 proc gdb_compile_objc {source dest type options} {
1730 set why_msg "unrecognized error"
1731 foreach lib {-lobjc -lpthreads -lpthread -lthread solaris} {
1732 # This kind of wipes out whatever libs the caller may have
1733 # set. Or maybe theirs will override ours. How infelicitous.
1734 if { $lib == "solaris" } {
1735 set lib "-lpthread -lposix4"
1737 if { $lib != "-lobjc" } {
1738 set lib "-lobjc $lib"
1740 set options_with_lib [concat $options [list libs=$lib quiet]]
1741 set ccout [gdb_compile $source $dest $type $options_with_lib]
1742 switch -regexp -- $ccout {
1743 ".*no posix threads support.*" {
1744 set why_msg "missing threads include file"
1747 ".*cannot open -lpthread.*" {
1748 set why_msg "missing runtime threads library"
1750 ".*Can't find library for -lpthread.*" {
1751 set why_msg "missing runtime threads library"
1754 pass "successfully compiled objc with posix threads test case"
1760 if {!$built_binfile} {
1761 unsupported "Couldn't compile $source: ${why_msg}"
1766 proc send_gdb { string } {
1767 global suppress_flag;
1768 if { $suppress_flag } {
1769 return "suppressed";
1771 return [remote_send host "$string"];
1777 proc gdb_expect { args } {
1778 if { [llength $args] == 2 && [lindex $args 0] != "-re" } {
1779 set atimeout [lindex $args 0];
1780 set expcode [list [lindex $args 1]];
1785 upvar timeout timeout;
1787 if [target_info exists gdb,timeout] {
1788 if [info exists timeout] {
1789 if { $timeout < [target_info gdb,timeout] } {
1790 set gtimeout [target_info gdb,timeout];
1792 set gtimeout $timeout;
1795 set gtimeout [target_info gdb,timeout];
1799 if ![info exists gtimeout] {
1801 if [info exists timeout] {
1802 set gtimeout $timeout;
1806 if [info exists atimeout] {
1807 if { ![info exists gtimeout] || $gtimeout < $atimeout } {
1808 set $gtimeout $atimeout;
1811 if ![info exists gtimeout] {
1817 global suppress_flag;
1818 global remote_suppress_flag;
1819 if [info exists remote_suppress_flag] {
1820 set old_val $remote_suppress_flag;
1822 if [info exists suppress_flag] {
1823 if { $suppress_flag } {
1824 set remote_suppress_flag 1;
1828 {uplevel remote_expect host $gtimeout $expcode} string];
1829 if [info exists old_val] {
1830 set remote_suppress_flag $old_val;
1832 if [info exists remote_suppress_flag] {
1833 unset remote_suppress_flag;
1838 global errorInfo errorCode;
1840 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
1841 } elseif {$code == 2} {
1842 return -code return $string
1843 } elseif {$code == 3} {
1845 } elseif {$code > 4} {
1846 return -code $code $string
1850 # gdb_expect_list MESSAGE SENTINEL LIST -- expect a sequence of outputs
1852 # Check for long sequence of output by parts.
1853 # MESSAGE: is the test message to be printed with the test success/fail.
1854 # SENTINEL: Is the terminal pattern indicating that output has finished.
1855 # LIST: is the sequence of outputs to match.
1856 # If the sentinel is recognized early, it is considered an error.
1859 # 1 if the test failed,
1860 # 0 if the test passes,
1861 # -1 if there was an internal error.
1863 proc gdb_expect_list {test sentinel list} {
1865 global suppress_flag
1868 if { $suppress_flag } {
1870 unresolved "${test}"
1872 while { ${index} < [llength ${list}] } {
1873 set pattern [lindex ${list} ${index}]
1874 set index [expr ${index} + 1]
1875 if { ${index} == [llength ${list}] } {
1878 -re "${pattern}${sentinel}" {
1879 # pass "${test}, pattern ${index} + sentinel"
1882 fail "${test} (pattern ${index} + sentinel)"
1885 -re ".*A problem internal to GDB has been detected" {
1886 fail "${test} (GDB internal error)"
1888 gdb_internal_error_resync
1891 fail "${test} (pattern ${index} + sentinel) (timeout)"
1896 # unresolved "${test}, pattern ${index} + sentinel"
1902 # pass "${test}, pattern ${index}"
1905 fail "${test} (pattern ${index})"
1908 -re ".*A problem internal to GDB has been detected" {
1909 fail "${test} (GDB internal error)"
1911 gdb_internal_error_resync
1914 fail "${test} (pattern ${index}) (timeout)"
1919 # unresolved "${test}, pattern ${index}"
1933 proc gdb_suppress_entire_file { reason } {
1934 global suppress_flag;
1936 warning "$reason\n";
1937 set suppress_flag -1;
1941 # Set suppress_flag, which will cause all subsequent calls to send_gdb and
1942 # gdb_expect to fail immediately (until the next call to
1943 # gdb_stop_suppressing_tests).
1945 proc gdb_suppress_tests { args } {
1946 global suppress_flag;
1948 return; # fnf - disable pending review of results where
1949 # testsuite ran better without this
1952 if { $suppress_flag == 1 } {
1953 if { [llength $args] > 0 } {
1954 warning "[lindex $args 0]\n";
1956 warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n";
1962 # Clear suppress_flag.
1964 proc gdb_stop_suppressing_tests { } {
1965 global suppress_flag;
1967 if [info exists suppress_flag] {
1968 if { $suppress_flag > 0 } {
1969 set suppress_flag 0;
1970 clone_output "Tests restarted.\n";
1973 set suppress_flag 0;
1977 proc gdb_clear_suppressed { } {
1978 global suppress_flag;
1980 set suppress_flag 0;
1983 proc gdb_start { } {
1988 catch default_gdb_exit
1992 # gdb_load_cmd -- load a file into the debugger.
1993 # ARGS - additional args to load command.
1994 # return a -1 if anything goes wrong.
1996 proc gdb_load_cmd { args } {
1999 if [target_info exists gdb_load_timeout] {
2000 set loadtimeout [target_info gdb_load_timeout]
2002 set loadtimeout 1600
2004 send_gdb "load $args\n"
2005 verbose "Timeout is now $loadtimeout seconds" 2
2006 gdb_expect $loadtimeout {
2007 -re "Loading section\[^\r\]*\r\n" {
2010 -re "Start address\[\r\]*\r\n" {
2013 -re "Transfer rate\[\r\]*\r\n" {
2016 -re "Memory access error\[^\r\]*\r\n" {
2017 perror "Failed to load program"
2020 -re "$gdb_prompt $" {
2023 -re "(.*)\r\n$gdb_prompt " {
2024 perror "Unexpected reponse from 'load' -- $expect_out(1,string)"
2028 perror "Timed out trying to load $args."
2037 # Copy a file to the remote target and return its target filename.
2038 # Schedule the file to be deleted at the end of this test.
2040 proc gdb_download { filename } {
2043 set destname [remote_download target $filename]
2044 lappend cleanfiles $destname
2048 # gdb_load_shlibs LIB...
2050 # Copy the listed libraries to the target.
2052 proc gdb_load_shlibs { args } {
2053 if {![is_remote target]} {
2057 foreach file $args {
2061 # Even if the target supplies full paths for shared libraries,
2062 # they may not be paths for this system.
2063 gdb_test "set solib-search-path [file dirname [lindex $args 0]]" "" ""
2067 # gdb_load -- load a file into the debugger.
2068 # Many files in config/*.exp override this procedure.
2070 proc gdb_load { arg } {
2071 return [gdb_file_cmd $arg]
2074 # gdb_reload -- load a file into the target. Called before "running",
2075 # either the first time or after already starting the program once,
2076 # for remote targets. Most files that override gdb_load should now
2077 # override this instead.
2079 proc gdb_reload { } {
2080 # For the benefit of existing configurations, default to gdb_load.
2081 # Specifying no file defaults to the executable currently being
2083 return [gdb_load ""]
2086 proc gdb_continue { function } {
2089 return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"];
2092 proc default_gdb_init { args } {
2093 global gdb_wrapper_initialized
2098 gdb_clear_suppressed;
2100 # Make sure that the wrapper is rebuilt
2101 # with the appropriate multilib option.
2102 set gdb_wrapper_initialized 0
2104 # Unlike most tests, we have a small number of tests that generate
2105 # a very large amount of output. We therefore increase the expect
2106 # buffer size to be able to contain the entire test output.
2109 # We want to add the name of the TCL testcase to the PASS/FAIL messages.
2110 if { [llength $args] > 0 } {
2113 set file [lindex $args 0];
2115 set pf_prefix "[file tail [file dirname $file]]/[file tail $file]:";
2118 if [target_info exists gdb_prompt] {
2119 set gdb_prompt [target_info gdb_prompt];
2121 set gdb_prompt "\\(gdb\\)"
2125 proc gdb_init { args } {
2126 return [eval default_gdb_init $args];
2129 proc gdb_finish { } {
2132 # Exit first, so that the files are no longer in use.
2135 if { [llength $cleanfiles] > 0 } {
2136 eval remote_file target delete $cleanfiles
2142 set debug_format "unknown"
2144 # Run the gdb command "info source" and extract the debugging format
2145 # information from the output and save it in debug_format.
2147 proc get_debug_format { } {
2153 set debug_format "unknown"
2154 send_gdb "info source\n"
2156 -re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" {
2157 set debug_format $expect_out(1,string)
2158 verbose "debug format is $debug_format"
2161 -re "No current source file.\r\n$gdb_prompt $" {
2162 perror "get_debug_format used when no current source file"
2165 -re "$gdb_prompt $" {
2166 warning "couldn't check debug format (no valid response)."
2170 warning "couldn't check debug format (timed out)."
2176 # Return true if FORMAT matches the debug format the current test was
2177 # compiled with. FORMAT is a shell-style globbing pattern; it can use
2178 # `*', `[...]', and so on.
2180 # This function depends on variables set by `get_debug_format', above.
2182 proc test_debug_format {format} {
2185 return [expr [string match $format $debug_format] != 0]
2188 # Like setup_xfail, but takes the name of a debug format (DWARF 1,
2189 # COFF, stabs, etc). If that format matches the format that the
2190 # current test was compiled with, then the next test is expected to
2191 # fail for any target. Returns 1 if the next test or set of tests is
2192 # expected to fail, 0 otherwise (or if it is unknown). Must have
2193 # previously called get_debug_format.
2194 proc setup_xfail_format { format } {
2195 set ret [test_debug_format $format];
2203 proc gdb_step_for_stub { } {
2206 if ![target_info exists gdb,use_breakpoint_for_stub] {
2207 if [target_info exists gdb_stub_step_command] {
2208 set command [target_info gdb_stub_step_command];
2212 send_gdb "${command}\n";
2215 -re "(main.* at |.*in .*start).*$gdb_prompt" {
2218 -re ".*$gdb_prompt" {
2220 if { $tries == 5 } {
2221 fail "stepping out of breakpoint function";
2224 send_gdb "${command}\n";
2228 fail "stepping out of breakpoint function";
2235 -re "main\[^\r\n\]*at \(\[^:]+\):\(\[0-9\]+\)" {
2236 set file $expect_out(1,string);
2237 set linenum [expr $expect_out(2,string) + 1];
2238 set breakplace "${file}:${linenum}";
2242 send_gdb "break ${breakplace}\n";
2244 -re "Breakpoint (\[0-9\]+) at.*$gdb_prompt" {
2245 set breakpoint $expect_out(1,string);
2247 -re "Breakpoint (\[0-9\]+): file.*$gdb_prompt" {
2248 set breakpoint $expect_out(1,string);
2252 send_gdb "continue\n";
2254 -re "Breakpoint ${breakpoint},.*$gdb_prompt" {
2255 gdb_test "delete $breakpoint" ".*" "";
2262 # gdb_get_line_number TEXT [FILE]
2264 # Search the source file FILE, and return the line number of the
2265 # first line containing TEXT. If no match is found, return -1.
2267 # TEXT is a string literal, not a regular expression.
2269 # The default value of FILE is "$srcdir/$subdir/$srcfile". If FILE is
2270 # specified, and does not start with "/", then it is assumed to be in
2271 # "$srcdir/$subdir". This is awkward, and can be fixed in the future,
2272 # by changing the callers and the interface at the same time.
2273 # In particular: gdb.base/break.exp, gdb.base/condbreak.exp,
2274 # gdb.base/ena-dis-br.exp.
2276 # Use this function to keep your test scripts independent of the
2277 # exact line numbering of the source file. Don't write:
2279 # send_gdb "break 20"
2281 # This means that if anyone ever edits your test's source file,
2282 # your test could break. Instead, put a comment like this on the
2283 # source file line you want to break at:
2285 # /* breakpoint spot: frotz.exp: test name */
2287 # and then write, in your test script (which we assume is named
2290 # send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n"
2292 # (Yes, Tcl knows how to handle the nested quotes and brackets.
2295 # % puts "foo [lindex "bar baz" 1]"
2298 # Tcl is quite clever, for a little stringy language.)
2302 # The previous implementation of this procedure used the gdb search command.
2303 # This version is different:
2305 # . It works with MI, and it also works when gdb is not running.
2307 # . It operates on the build machine, not the host machine.
2309 # . For now, this implementation fakes a current directory of
2310 # $srcdir/$subdir to be compatible with the old implementation.
2311 # This will go away eventually and some callers will need to
2314 # . The TEXT argument is literal text and matches literally,
2315 # not a regular expression as it was before.
2317 # . State changes in gdb, such as changing the current file
2318 # and setting $_, no longer happen.
2320 # After a bit of time we can forget about the differences from the
2321 # old implementation.
2323 # --chastain 2004-08-05
2325 proc gdb_get_line_number { text { file "" } } {
2330 if { "$file" == "" } then {
2333 if { ! [regexp "^/" "$file"] } then {
2334 set file "$srcdir/$subdir/$file"
2337 if { [ catch { set fd [open "$file"] } message ] } then {
2343 for { set line 1 } { 1 } { incr line } {
2344 if { [ catch { set nchar [gets "$fd" body] } message ] } then {
2348 if { $nchar < 0 } then {
2351 if { [string first "$text" "$body"] >= 0 } then {
2357 if { [ catch { close "$fd" } message ] } then {
2365 # gdb_continue_to_end:
2366 # The case where the target uses stubs has to be handled specially. If a
2367 # stub is used, we set a breakpoint at exit because we cannot rely on
2368 # exit() behavior of a remote target.
2370 # mssg is the error message that gets printed.
2372 proc gdb_continue_to_end {mssg} {
2373 if [target_info exists use_gdb_stub] {
2374 if {![gdb_breakpoint "exit"]} {
2377 gdb_test "continue" "Continuing..*Breakpoint .*exit.*" \
2378 "continue until exit at $mssg"
2380 # Continue until we exit. Should not stop again.
2381 # Don't bother to check the output of the program, that may be
2382 # extremely tough for some remote systems.
2383 gdb_test "continue"\
2384 "Continuing.\[\r\n0-9\]+(... EXIT code 0\[\r\n\]+|Program exited normally\\.).*"\
2385 "continue until exit at $mssg"
2389 proc rerun_to_main {} {
2392 if [target_info exists use_gdb_stub] {
2395 -re ".*Breakpoint .*main .*$gdb_prompt $"\
2396 {pass "rerun to main" ; return 0}
2397 -re "$gdb_prompt $"\
2398 {fail "rerun to main" ; return 0}
2399 timeout {fail "(timeout) rerun to main" ; return 0}
2404 -re "The program .* has been started already.*y or n. $" {
2408 -re "Starting program.*$gdb_prompt $"\
2409 {pass "rerun to main" ; return 0}
2410 -re "$gdb_prompt $"\
2411 {fail "rerun to main" ; return 0}
2412 timeout {fail "(timeout) rerun to main" ; return 0}
2417 # Print a message and return true if a test should be skipped
2418 # due to lack of floating point suport.
2420 proc gdb_skip_float_test { msg } {
2421 if [target_info exists gdb,skip_float_tests] {
2422 verbose "Skipping test '$msg': no float tests.";
2428 # Print a message and return true if a test should be skipped
2429 # due to lack of stdio support.
2431 proc gdb_skip_stdio_test { msg } {
2432 if [target_info exists gdb,noinferiorio] {
2433 verbose "Skipping test '$msg': no inferior i/o.";
2439 proc gdb_skip_bogus_test { msg } {
2443 # Return true if a test should be skipped due to lack of XML support
2446 proc gdb_skip_xml_test { } {
2449 global xml_missing_cached
2451 if {[info exists xml_missing_cached]} {
2452 return $xml_missing_cached
2456 set xml_missing_cached 0
2457 gdb_test_multiple "set tdesc filename ${srcdir}/gdb.xml/trivial.xml" "" {
2458 -re ".*XML support was disabled at compile time.*$gdb_prompt $" {
2459 set xml_missing_cached 1
2461 -re ".*$gdb_prompt $" { }
2464 return $xml_missing_cached
2467 # Note: the procedure gdb_gnu_strip_debug will produce an executable called
2468 # ${binfile}.dbglnk, which is just like the executable ($binfile) but without
2469 # the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
2470 # the name of a debuginfo only file. This file will be stored in the
2471 # gdb.base/.debug subdirectory.
2473 # Functions for separate debug info testing
2475 # starting with an executable:
2476 # foo --> original executable
2478 # at the end of the process we have:
2479 # foo.stripped --> foo w/o debug info
2480 # .debug/foo.debug --> foo's debug info
2481 # foo --> like foo, but with a new .gnu_debuglink section pointing to foo.debug.
2483 # Return the name of the file in which we should stor EXEC's separated
2484 # debug info. EXEC contains the full path.
2485 proc separate_debug_filename { exec } {
2487 # In a .debug subdirectory off the same directory where the testcase
2488 # executable is going to be. Something like:
2489 # <your-path>/gdb/testsuite/gdb.base/.debug/blah.debug.
2490 # This is the default location where gdb expects to findi
2491 # the debug info file.
2493 set exec_dir [file dirname $exec]
2494 set exec_file [file tail $exec]
2495 set debug_dir [file join $exec_dir ".debug"]
2496 set debug_file [file join $debug_dir "${exec_file}.debug"]
2501 # Return the build-id hex string (usually 160 bits as 40 hex characters)
2502 # converted to the form: .build-id/ab/cdef1234...89.debug
2503 # Return "" if no build-id found.
2504 proc build_id_debug_filename_get { exec } {
2505 set tmp "${exec}-tmp"
2506 set objcopy_program [transform objcopy]
2508 set result [catch "exec $objcopy_program -j .note.gnu.build-id -O binary $exec $tmp" output]
2509 verbose "result is $result"
2510 verbose "output is $output"
2515 fconfigure $fi -translation binary
2516 # Skip the NOTE header.
2521 if ![string compare $data ""] then {
2524 # Convert it to hex.
2525 binary scan $data H* data
2526 set data [regsub {^..} $data {\0/}]
2527 return ".build-id/${data}.debug";
2530 # Create stripped files for DEST, replacing it. If ARGS is passed, it is a
2531 # list of optional flags. The only currently supported flag is no-main,
2532 # which removes the symbol entry for main from the separate debug file.
2534 proc gdb_gnu_strip_debug { dest args } {
2536 set debug_file [separate_debug_filename $dest]
2537 set strip_to_file_program [transform strip]
2538 set objcopy_program [transform objcopy]
2540 # Make sure the directory that will hold the separated debug
2541 # info actually exists.
2542 set debug_dir [file dirname $debug_file]
2543 if {! [file isdirectory $debug_dir]} {
2544 file mkdir $debug_dir
2547 set debug_link [file tail $debug_file]
2548 set stripped_file "${dest}.stripped"
2550 # Get rid of the debug info, and store result in stripped_file
2551 # something like gdb/testsuite/gdb.base/blah.stripped.
2552 set result [catch "exec $strip_to_file_program --strip-debug ${dest} -o ${stripped_file}" output]
2553 verbose "result is $result"
2554 verbose "output is $output"
2559 # Get rid of everything but the debug info, and store result in debug_file
2560 # This will be in the .debug subdirectory, see above.
2561 set result [catch "exec $strip_to_file_program --only-keep-debug ${dest} -o ${debug_file}" output]
2562 verbose "result is $result"
2563 verbose "output is $output"
2568 # If no-main is passed, strip the symbol for main from the separate
2569 # file. This is to simulate the behavior of elfutils's eu-strip, which
2570 # leaves the symtab in the original file only. There's no way to get
2571 # objcopy or strip to remove the symbol table without also removing the
2572 # debugging sections, so this is as close as we can get.
2573 if { [llength $args] == 1 && [lindex $args 0] == "no-main" } {
2574 set result [catch "exec $objcopy_program -N main ${debug_file} ${debug_file}-tmp" output]
2575 verbose "result is $result"
2576 verbose "output is $output"
2580 file delete "${debug_file}"
2581 file rename "${debug_file}-tmp" "${debug_file}"
2584 # Link the two previous output files together, adding the .gnu_debuglink
2585 # section to the stripped_file, containing a pointer to the debug_file,
2586 # save the new file in dest.
2587 # This will be the regular executable filename, in the usual location.
2588 set result [catch "exec $objcopy_program --add-gnu-debuglink=${debug_file} ${stripped_file} ${dest}" output]
2589 verbose "result is $result"
2590 verbose "output is $output"
2598 # Test the output of GDB_COMMAND matches the pattern obtained
2599 # by concatenating all elements of EXPECTED_LINES. This makes
2600 # it possible to split otherwise very long string into pieces.
2601 # If third argument is not empty, it's used as the name of the
2602 # test to be printed on pass/fail.
2603 proc help_test_raw { gdb_command expected_lines args } {
2604 set message $gdb_command
2605 if [llength $args]>0 then {
2606 set message [lindex $args 0]
2608 set expected_output [join $expected_lines ""]
2609 gdb_test "${gdb_command}" "${expected_output}" $message
2612 # Test the output of "help COMMNAD_CLASS". EXPECTED_INITIAL_LINES
2613 # are regular expressions that should match the beginning of output,
2614 # before the list of commands in that class. The presence of
2615 # command list and standard epilogue will be tested automatically.
2616 proc test_class_help { command_class expected_initial_lines args } {
2618 "List of commands\:.*\[\r\n\]+"
2619 "Type \"help\" followed by command name for full documentation\.\[\r\n\]+"
2620 "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n\]+"
2621 "Command name abbreviations are allowed if unambiguous\."
2623 set l_entire_body [concat $expected_initial_lines $l_stock_body]
2625 eval [list help_test_raw "help ${command_class}" $l_entire_body] $args
2628 # COMMAND_LIST should have either one element -- command to test, or
2629 # two elements -- abbreviated command to test, and full command the first
2630 # element is abbreviation of.
2631 # The command must be a prefix command. EXPECTED_INITIAL_LINES
2632 # are regular expressions that should match the beginning of output,
2633 # before the list of subcommands. The presence of
2634 # subcommand list and standard epilogue will be tested automatically.
2635 proc test_prefix_command_help { command_list expected_initial_lines args } {
2636 set command [lindex $command_list 0]
2637 if {[llength $command_list]>1} {
2638 set full_command [lindex $command_list 1]
2640 set full_command $command
2642 # Use 'list' and not just {} because we want variables to
2643 # be expanded in this list.
2644 set l_stock_body [list\
2645 "List of $full_command subcommands\:.*\[\r\n\]+"\
2646 "Type \"help $full_command\" followed by $full_command subcommand name for full documentation\.\[\r\n\]+"\
2647 "Type \"apropos word\" to search for commands related to \"word\"\.\[\r\n\]+"\
2648 "Command name abbreviations are allowed if unambiguous\."]
2649 set l_entire_body [concat $expected_initial_lines $l_stock_body]
2650 if {[llength $args]>0} {
2651 help_test_raw "help ${command}" $l_entire_body [lindex $args 0]
2653 help_test_raw "help ${command}" $l_entire_body