1 # Copyright 1992-2016 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # This file was written by Fred Fish. (fnf@cygnus.com)
18 # Generic gdb subroutines that should work for any target. If these
19 # need to be modified for any target, it can be done with a variable
20 # or by passing arguments.
23 # Tests would fail, logs on get_compiler_info() would be missing.
24 send_error "`site.exp' not found, run `make site.exp'!\n"
30 load_lib gdb-utils.exp
34 # The spawn ID used for I/O interaction with the inferior. For native
35 # targets, or remote targets that can do I/O through GDB
36 # (semi-hosting) this will be the same as the host/GDB's spawn ID.
37 # Otherwise, the board may set this to some other spawn ID. E.g.,
38 # when debugging with GDBserver, this is set to GDBserver's spawn ID,
39 # so input/output is done on gdbserver's tty.
40 global inferior_spawn_id
42 if [info exists TOOL_EXECUTABLE] {
43 set GDB $TOOL_EXECUTABLE
45 if ![info exists GDB] {
46 if ![is_remote host] {
47 set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
49 set GDB [transform gdb]
52 verbose "using GDB = $GDB" 2
54 # GDBFLAGS is available for the user to set on the command line.
55 # E.g. make check RUNTESTFLAGS=GDBFLAGS=mumble
56 # Testcases may use it to add additional flags, but they must:
57 # - append new flags, not overwrite
58 # - restore the original value when done
60 if ![info exists GDBFLAGS] {
63 verbose "using GDBFLAGS = $GDBFLAGS" 2
65 # Make the build data directory available to tests.
66 set BUILD_DATA_DIRECTORY "[pwd]/../data-directory"
68 # INTERNAL_GDBFLAGS contains flags that the testsuite requires.
69 global INTERNAL_GDBFLAGS
70 if ![info exists INTERNAL_GDBFLAGS] {
71 set INTERNAL_GDBFLAGS "-nw -nx -data-directory $BUILD_DATA_DIRECTORY"
74 # The variable gdb_prompt is a regexp which matches the gdb prompt.
75 # Set it if it is not already set. This is also set by default_gdb_init
76 # but it's not clear what removing one of them will break.
77 # See with_gdb_prompt for more details on prompt handling.
79 if ![info exists gdb_prompt] then {
80 set gdb_prompt "\\(gdb\\)"
83 # A regexp that matches the pagination prompt.
84 set pagination_prompt [string_to_regexp "---Type <return> to continue, or q <return> to quit---"]
86 # The variable fullname_syntax_POSIX is a regexp which matches a POSIX
87 # absolute path ie. /foo/
88 set fullname_syntax_POSIX {/[^\n]*/}
89 # The variable fullname_syntax_UNC is a regexp which matches a Windows
90 # UNC path ie. \\D\foo\
91 set fullname_syntax_UNC {\\\\[^\\]+\\[^\n]+\\}
92 # The variable fullname_syntax_DOS_CASE is a regexp which matches a
93 # particular DOS case that GDB most likely will output
94 # ie. \foo\, but don't match \\.*\
95 set fullname_syntax_DOS_CASE {\\[^\\][^\n]*\\}
96 # The variable fullname_syntax_DOS is a regexp which matches a DOS path
97 # ie. a:\foo\ && a:foo\
98 set fullname_syntax_DOS {[a-zA-Z]:[^\n]*\\}
99 # The variable fullname_syntax is a regexp which matches what GDB considers
100 # an absolute path. It is currently debatable if the Windows style paths
101 # d:foo and \abc should be considered valid as an absolute path.
102 # Also, the purpse of this regexp is not to recognize a well formed
103 # absolute path, but to say with certainty that a path is absolute.
104 set fullname_syntax "($fullname_syntax_POSIX|$fullname_syntax_UNC|$fullname_syntax_DOS_CASE|$fullname_syntax_DOS)"
106 # Needed for some tests under Cygwin.
110 if ![info exists env(EXEEXT)] {
113 set EXEEXT $env(EXEEXT)
118 set inferior_exited_re "(\\\[Inferior \[0-9\]+ \\(.*\\) exited)"
120 ### Only procedures should come after this point.
123 # gdb_version -- extract and print the version number of GDB
125 proc default_gdb_version {} {
127 global INTERNAL_GDBFLAGS GDBFLAGS
131 if {[info exists inotify_pid]} {
132 eval exec kill $inotify_pid
135 set output [remote_exec host "$GDB $INTERNAL_GDBFLAGS --version"]
136 set tmp [lindex $output 1]
138 regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
139 if ![is_remote host] {
140 clone_output "[which $GDB] version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
142 clone_output "$GDB on remote host version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
146 proc gdb_version { } {
147 return [default_gdb_version]
151 # gdb_unload -- unload a file if one is loaded
152 # Return 0 on success, -1 on error.
161 -re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue }
162 -re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue }
163 -re "A program is being debugged already.*Are you sure you want to change the file.*y or n. $" {
167 -re "Discard symbol table from .*y or n.*$" {
171 -re "$gdb_prompt $" {}
173 perror "couldn't unload file in $GDB (timeout)."
180 # Many of the tests depend on setting breakpoints at various places and
181 # running until that breakpoint is reached. At times, we want to start
182 # with a clean-slate with respect to breakpoints, so this utility proc
183 # lets us do this without duplicating this code everywhere.
186 proc delete_breakpoints {} {
189 # we need a larger timeout value here or this thing just confuses
190 # itself. May need a better implementation if possible. - guo
194 set msg "delete all breakpoints in delete_breakpoints"
196 gdb_test_multiple "delete breakpoints" "$msg" {
197 -re "Delete all breakpoints.*y or n.*$" {
201 -re "$gdb_prompt $" {
207 # Confirm with "info breakpoints".
209 set msg "info breakpoints"
210 gdb_test_multiple $msg $msg {
211 -re "No breakpoints or watchpoints..*$gdb_prompt $" {
214 -re "$gdb_prompt $" {
220 perror "breakpoints not deleted"
224 # Generic run command.
226 # The second pattern below matches up to the first newline *only*.
227 # Using ``.*$'' could swallow up output that we attempt to match
230 # N.B. This function does not wait for gdb to return to the prompt,
231 # that is the caller's responsibility.
233 proc gdb_run_cmd {args} {
234 global gdb_prompt use_gdb_stub
236 foreach command [gdb_init_commands] {
237 send_gdb "$command\n"
239 -re "$gdb_prompt $" { }
241 perror "gdb_init_command for target failed"
248 if [target_info exists gdb,do_reload_on_run] {
249 if { [gdb_reload] != 0 } {
252 send_gdb "continue\n"
254 -re "Continu\[^\r\n\]*\[\r\n\]" {}
260 if [target_info exists gdb,start_symbol] {
261 set start [target_info gdb,start_symbol]
265 send_gdb "jump *$start\n"
267 while { $start_attempt } {
268 # Cap (re)start attempts at three to ensure that this loop
269 # always eventually fails. Don't worry about trying to be
270 # clever and not send a command when it has failed.
271 if [expr $start_attempt > 3] {
272 perror "Jump to start() failed (retry count exceeded)"
275 set start_attempt [expr $start_attempt + 1]
277 -re "Continuing at \[^\r\n\]*\[\r\n\]" {
280 -re "No symbol \"_start\" in current.*$gdb_prompt $" {
281 perror "Can't find start symbol to run in gdb_run"
284 -re "No symbol \"start\" in current.*$gdb_prompt $" {
285 send_gdb "jump *_start\n"
287 -re "No symbol.*context.*$gdb_prompt $" {
290 -re "Line.* Jump anyway.*y or n. $" {
293 -re "The program is not being run.*$gdb_prompt $" {
294 if { [gdb_reload] != 0 } {
297 send_gdb "jump *$start\n"
300 perror "Jump to start() failed (timeout)"
308 if [target_info exists gdb,do_reload_on_run] {
309 if { [gdb_reload] != 0 } {
313 send_gdb "run $args\n"
314 # This doesn't work quite right yet.
315 # Use -notransfer here so that test cases (like chng-sym.exp)
316 # may test for additional start-up messages.
318 -re "The program .* has been started already.*y or n. $" {
322 -notransfer -re "Starting program: \[^\r\n\]*" {}
323 -notransfer -re "$gdb_prompt $" {
324 # There is no more input expected.
329 # Generic start command. Return 0 if we could start the program, -1
332 # N.B. This function does not wait for gdb to return to the prompt,
333 # that is the caller's responsibility.
335 proc gdb_start_cmd {args} {
336 global gdb_prompt use_gdb_stub
338 foreach command [gdb_init_commands] {
339 send_gdb "$command\n"
341 -re "$gdb_prompt $" { }
343 perror "gdb_init_command for target failed"
353 send_gdb "start $args\n"
354 # Use -notransfer here so that test cases (like chng-sym.exp)
355 # may test for additional start-up messages.
357 -re "The program .* has been started already.*y or n. $" {
361 -notransfer -re "Starting program: \[^\r\n\]*" {
368 # Set a breakpoint at FUNCTION. If there is an additional argument it is
369 # a list of options; the supported options are allow-pending, temporary,
370 # message, no-message, and passfail.
371 # The result is 1 for success, 0 for failure.
373 # Note: The handling of message vs no-message is messed up, but it's based
374 # on historical usage. By default this function does not print passes,
376 # no-message: turns off printing of fails (and passes, but they're already off)
377 # message: turns on printing of passes (and fails, but they're already on)
379 proc gdb_breakpoint { function args } {
383 set pending_response n
384 if {[lsearch -exact $args allow-pending] != -1} {
385 set pending_response y
388 set break_command "break"
389 set break_message "Breakpoint"
390 if {[lsearch -exact $args temporary] != -1} {
391 set break_command "tbreak"
392 set break_message "Temporary breakpoint"
397 set no_message_loc [lsearch -exact $args no-message]
398 set message_loc [lsearch -exact $args message]
399 # The last one to appear in args wins.
400 if { $no_message_loc > $message_loc } {
402 } elseif { $message_loc > $no_message_loc } {
406 set test_name "setting breakpoint at $function"
408 send_gdb "$break_command $function\n"
409 # The first two regexps are what we get with -g, the third is without -g.
411 -re "$break_message \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {}
412 -re "$break_message \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {}
413 -re "$break_message \[0-9\]* at .*$gdb_prompt $" {}
414 -re "$break_message \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" {
415 if {$pending_response == "n"} {
422 -re "Make breakpoint pending.*y or \\\[n\\\]. $" {
423 send_gdb "$pending_response\n"
426 -re "A problem internal to GDB has been detected" {
428 fail "$test_name (GDB internal error)"
430 gdb_internal_error_resync
433 -re "$gdb_prompt $" {
441 fail "$test_name (eof)"
447 fail "$test_name (timeout)"
458 # Set breakpoint at function and run gdb until it breaks there.
459 # Since this is the only breakpoint that will be set, if it stops
460 # at a breakpoint, we will assume it is the one we want. We can't
461 # just compare to "function" because it might be a fully qualified,
462 # single quoted C++ function specifier.
464 # If there are additional arguments, pass them to gdb_breakpoint.
465 # We recognize no-message/message ourselves.
466 # The default is no-message.
467 # no-message is messed up here, like gdb_breakpoint: to preserve
468 # historical usage fails are always printed by default.
469 # no-message: turns off printing of fails (and passes, but they're already off)
470 # message: turns on printing of passes (and fails, but they're already on)
472 proc runto { function args } {
478 # Default to "no-message".
479 set args "no-message $args"
483 set no_message_loc [lsearch -exact $args no-message]
484 set message_loc [lsearch -exact $args message]
485 # The last one to appear in args wins.
486 if { $no_message_loc > $message_loc } {
488 } elseif { $message_loc > $no_message_loc } {
492 set test_name "running to $function in runto"
494 # We need to use eval here to pass our varargs args to gdb_breakpoint
495 # which is also a varargs function.
496 # But we also have to be careful because $function may have multiple
497 # elements, and we don't want Tcl to move the remaining elements after
498 # the first to $args. That is why $function is wrapped in {}.
499 if ![eval gdb_breakpoint {$function} $args] {
505 # the "at foo.c:36" output we get with -g.
506 # the "in func" output we get without -g.
508 -re "Break.* at .*:$decimal.*$gdb_prompt $" {
514 -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" {
520 -re "The target does not support running in non-stop mode.\r\n$gdb_prompt $" {
522 unsupported "Non-stop mode not supported"
526 -re ".*A problem internal to GDB has been detected" {
528 fail "$test_name (GDB internal error)"
530 gdb_internal_error_resync
533 -re "$gdb_prompt $" {
541 fail "$test_name (eof)"
547 fail "$test_name (timeout)"
558 # Ask gdb to run until we hit a breakpoint at main.
560 # N.B. This function deletes all existing breakpoints.
561 # If you don't want that, use gdb_start_cmd.
563 proc runto_main { } {
564 return [runto main no-message]
567 ### Continue, and expect to hit a breakpoint.
568 ### Report a pass or fail, depending on whether it seems to have
569 ### worked. Use NAME as part of the test name; each call to
570 ### continue_to_breakpoint should use a NAME which is unique within
572 proc gdb_continue_to_breakpoint {name {location_pattern .*}} {
574 set full_name "continue to breakpoint: $name"
576 gdb_test_multiple "continue" $full_name {
577 -re "(?:Breakpoint|Temporary breakpoint) .* (at|in) $location_pattern\r\n$gdb_prompt $" {
584 # gdb_internal_error_resync:
586 # Answer the questions GDB asks after it reports an internal error
587 # until we get back to a GDB prompt. Decline to quit the debugging
588 # session, and decline to create a core file. Return non-zero if the
591 # This procedure just answers whatever questions come up until it sees
592 # a GDB prompt; it doesn't require you to have matched the input up to
593 # any specific point. However, it only answers questions it sees in
594 # the output itself, so if you've matched a question, you had better
595 # answer it yourself before calling this.
597 # You can use this function thus:
601 # -re ".*A problem internal to GDB has been detected" {
602 # gdb_internal_error_resync
607 proc gdb_internal_error_resync {} {
610 verbose -log "Resyncing due to internal error."
613 while {$count < 10} {
615 -re "Quit this debugging session\\? \\(y or n\\) $" {
619 -re "Create a core file of GDB\\? \\(y or n\\) $" {
623 -re "$gdb_prompt $" {
624 # We're resynchronized.
628 perror "Could not resync from internal error (timeout)"
633 perror "Could not resync from internal error (resync count exceeded)"
638 # gdb_test_multiple COMMAND MESSAGE EXPECT_ARGUMENTS
639 # Send a command to gdb; test the result.
641 # COMMAND is the command to execute, send to GDB with send_gdb. If
642 # this is the null string no command is sent.
643 # MESSAGE is a message to be printed with the built-in failure patterns
644 # if one of them matches. If MESSAGE is empty COMMAND will be used.
645 # EXPECT_ARGUMENTS will be fed to expect in addition to the standard
646 # patterns. Pattern elements will be evaluated in the caller's
647 # context; action elements will be executed in the caller's context.
648 # Unlike patterns for gdb_test, these patterns should generally include
649 # the final newline and prompt.
652 # 1 if the test failed, according to a built-in failure pattern
653 # 0 if only user-supplied patterns matched
654 # -1 if there was an internal error.
656 # You can use this function thus:
658 # gdb_test_multiple "print foo" "test foo" {
659 # -re "expected output 1" {
662 # -re "expected output 2" {
667 # Like with "expect", you can also specify the spawn id to match with
668 # -i "$id". Interesting spawn ids are $inferior_spawn_id and
669 # $gdb_spawn_id. The former matches inferior I/O, while the latter
670 # matches GDB I/O. E.g.:
672 # send_inferior "hello\n"
673 # gdb_test_multiple "continue" "test echo" {
674 # -i "$inferior_spawn_id" -re "^hello\r\nhello\r\n$" {
677 # -i "$gdb_spawn_id" -re "Breakpoint.*$gdb_prompt $" {
678 # fail "hit breakpoint"
682 # The standard patterns, such as "Inferior exited..." and "A problem
683 # ...", all being implicitly appended to that list. These are always
684 # expected from $gdb_spawn_id. IOW, callers do not need to worry
685 # about resetting "-i" back to $gdb_spawn_id explicitly.
687 proc gdb_test_multiple { command message user_code } {
688 global verbose use_gdb_stub
689 global gdb_prompt pagination_prompt
692 global inferior_exited_re
693 upvar timeout timeout
694 upvar expect_out expect_out
697 if { $message == "" } {
701 if [string match "*\[\r\n\]" $command] {
702 error "Invalid trailing newline in \"$message\" test"
705 if [string match "*\[\r\n\]*" $message] {
706 error "Invalid newline in \"$message\" test"
710 && [regexp -nocase {^\s*(r|run|star|start|at|att|atta|attac|attach)\M} \
712 error "gdbserver does not support $command without extended-remote"
715 # TCL/EXPECT WART ALERT
716 # Expect does something very strange when it receives a single braced
717 # argument. It splits it along word separators and performs substitutions.
718 # This means that { "[ab]" } is evaluated as "[ab]", but { "\[ab\]" } is
719 # evaluated as "\[ab\]". But that's not how TCL normally works; inside a
720 # double-quoted list item, "\[ab\]" is just a long way of representing
721 # "[ab]", because the backslashes will be removed by lindex.
723 # Unfortunately, there appears to be no easy way to duplicate the splitting
724 # that expect will do from within TCL. And many places make use of the
725 # "\[0-9\]" construct, so we need to support that; and some places make use
726 # of the "[func]" construct, so we need to support that too. In order to
727 # get this right we have to substitute quoted list elements differently
728 # from braced list elements.
730 # We do this roughly the same way that Expect does it. We have to use two
731 # lists, because if we leave unquoted newlines in the argument to uplevel
732 # they'll be treated as command separators, and if we escape newlines
733 # we mangle newlines inside of command blocks. This assumes that the
734 # input doesn't contain a pattern which contains actual embedded newlines
737 regsub -all {\n} ${user_code} { } subst_code
738 set subst_code [uplevel list $subst_code]
740 set processed_code ""
742 set expecting_action 0
744 foreach item $user_code subst_item $subst_code {
745 if { $item == "-n" || $item == "-notransfer" || $item == "-nocase" } {
746 lappend processed_code $item
749 if { $item == "-indices" || $item == "-re" || $item == "-ex" } {
750 lappend processed_code $item
753 if { $item == "-timeout" || $item == "-i" } {
755 lappend processed_code $item
758 if { $expecting_arg } {
760 lappend processed_code $subst_item
763 if { $expecting_action } {
764 lappend processed_code "uplevel [list $item]"
765 set expecting_action 0
766 # Cosmetic, no effect on the list.
767 append processed_code "\n"
770 set expecting_action 1
771 lappend processed_code $subst_item
772 if {$patterns != ""} {
775 append patterns "\"$subst_item\""
778 # Also purely cosmetic.
779 regsub -all {\r} $patterns {\\r} patterns
780 regsub -all {\n} $patterns {\\n} patterns
783 send_user "Sending \"$command\" to gdb\n"
784 send_user "Looking to match \"$patterns\"\n"
785 send_user "Message is \"$message\"\n"
789 set string "${command}\n"
790 if { $command != "" } {
791 set multi_line_re "\[\r\n\] *>"
792 while { "$string" != "" } {
793 set foo [string first "\n" "$string"]
794 set len [string length "$string"]
795 if { $foo < [expr $len - 1] } {
796 set str [string range "$string" 0 $foo]
797 if { [send_gdb "$str"] != "" } {
800 if { ! $suppress_flag } {
801 perror "Couldn't send $command to GDB."
806 # since we're checking if each line of the multi-line
807 # command are 'accepted' by GDB here,
808 # we need to set -notransfer expect option so that
809 # command output is not lost for pattern matching
812 -notransfer -re "$multi_line_re$" { verbose "partial: match" 3 }
813 timeout { verbose "partial: timeout" 3 }
815 set string [string range "$string" [expr $foo + 1] end]
816 set multi_line_re "$multi_line_re.*\[\r\n\] *>"
821 if { "$string" != "" } {
822 if { [send_gdb "$string"] != "" } {
825 if { ! $suppress_flag } {
826 perror "Couldn't send $command to GDB."
835 -re ".*A problem internal to GDB has been detected" {
836 fail "$message (GDB internal error)"
837 gdb_internal_error_resync
840 -re "\\*\\*\\* DOSEXIT code.*" {
841 if { $message != "" } {
844 gdb_suppress_entire_file "GDB died"
848 append code $processed_code
850 # Reset the spawn id, in case the processed code used -i.
853 -re "Ending remote debugging.*$gdb_prompt $" {
854 if ![isnative] then {
855 warning "Can`t communicate to remote target."
861 -re "Undefined\[a-z\]* command:.*$gdb_prompt $" {
862 perror "Undefined command \"$command\"."
866 -re "Ambiguous command.*$gdb_prompt $" {
867 perror "\"$command\" is not a unique command name."
871 -re "$inferior_exited_re with code \[0-9\]+.*$gdb_prompt $" {
872 if ![string match "" $message] then {
873 set errmsg "$message (the program exited)"
875 set errmsg "$command (the program exited)"
880 -re "$inferior_exited_re normally.*$gdb_prompt $" {
881 if ![string match "" $message] then {
882 set errmsg "$message (the program exited)"
884 set errmsg "$command (the program exited)"
889 -re "The program is not being run.*$gdb_prompt $" {
890 if ![string match "" $message] then {
891 set errmsg "$message (the program is no longer running)"
893 set errmsg "$command (the program is no longer running)"
898 -re "\r\n$gdb_prompt $" {
899 if ![string match "" $message] then {
904 -re "$pagination_prompt" {
906 perror "Window too small."
910 -re "\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " {
912 gdb_expect -re "$gdb_prompt $"
913 fail "$message (got interactive prompt)"
916 -re "\\\[0\\\] cancel\r\n\\\[1\\\] all.*\r\n> $" {
918 gdb_expect -re "$gdb_prompt $"
919 fail "$message (got breakpoint menu)"
923 # Patterns below apply to any spawn id specified.
926 perror "Process no longer exists"
927 if { $message != "" } {
933 perror "internal buffer is full."
938 if ![string match "" $message] then {
939 fail "$message (timeout)"
946 set code [catch {gdb_expect $code} string]
948 global errorInfo errorCode
949 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
950 } elseif {$code > 1} {
951 return -code $code $string
956 # gdb_test COMMAND PATTERN MESSAGE QUESTION RESPONSE
957 # Send a command to gdb; test the result.
959 # COMMAND is the command to execute, send to GDB with send_gdb. If
960 # this is the null string no command is sent.
961 # PATTERN is the pattern to match for a PASS, and must NOT include
962 # the \r\n sequence immediately before the gdb prompt. This argument
963 # may be omitted to just match the prompt, ignoring whatever output
965 # MESSAGE is an optional message to be printed. If this is
966 # omitted, then the pass/fail messages use the command string as the
967 # message. (If this is the empty string, then sometimes we don't
968 # call pass or fail at all; I don't understand this at all.)
969 # QUESTION is a question GDB may ask in response to COMMAND, like
971 # RESPONSE is the response to send if QUESTION appears.
974 # 1 if the test failed,
975 # 0 if the test passes,
976 # -1 if there was an internal error.
978 proc gdb_test { args } {
980 upvar timeout timeout
982 if [llength $args]>2 then {
983 set message [lindex $args 2]
985 set message [lindex $args 0]
987 set command [lindex $args 0]
988 set pattern [lindex $args 1]
990 if [llength $args]==5 {
991 set question_string [lindex $args 3]
992 set response_string [lindex $args 4]
994 set question_string "^FOOBAR$"
997 return [gdb_test_multiple $command $message {
998 -re "\[\r\n\]*($pattern)\[\r\n\]+$gdb_prompt $" {
999 if ![string match "" $message] then {
1003 -re "(${question_string})$" {
1004 send_gdb "$response_string\n"
1010 # gdb_test_no_output COMMAND MESSAGE
1011 # Send a command to GDB and verify that this command generated no output.
1013 # See gdb_test_multiple for a description of the COMMAND and MESSAGE
1014 # parameters. If MESSAGE is ommitted, then COMMAND will be used as
1015 # the message. (If MESSAGE is the empty string, then sometimes we do not
1016 # call pass or fail at all; I don't understand this at all.)
1018 proc gdb_test_no_output { args } {
1020 set command [lindex $args 0]
1021 if [llength $args]>1 then {
1022 set message [lindex $args 1]
1024 set message $command
1027 set command_regex [string_to_regexp $command]
1028 gdb_test_multiple $command $message {
1029 -re "^$command_regex\r\n$gdb_prompt $" {
1030 if ![string match "" $message] then {
1037 # Send a command and then wait for a sequence of outputs.
1038 # This is useful when the sequence is long and contains ".*", a single
1039 # regexp to match the entire output can get a timeout much easier.
1041 # COMMAND is the command to send.
1042 # TEST_NAME is passed to pass/fail. COMMAND is used if TEST_NAME is "".
1043 # EXPECTED_OUTPUT_LIST is a list of regexps of expected output, which are
1044 # processed in order, and all must be present in the output.
1046 # It is unnecessary to specify ".*" at the beginning or end of any regexp,
1047 # there is an implicit ".*" between each element of EXPECTED_OUTPUT_LIST.
1048 # There is also an implicit ".*" between the last regexp and the gdb prompt.
1050 # Like gdb_test and gdb_test_multiple, the output is expected to end with the
1051 # gdb prompt, which must not be specified in EXPECTED_OUTPUT_LIST.
1054 # 1 if the test failed,
1055 # 0 if the test passes,
1056 # -1 if there was an internal error.
1058 proc gdb_test_sequence { command test_name expected_output_list } {
1060 if { $test_name == "" } {
1061 set test_name $command
1063 lappend expected_output_list ""; # implicit ".*" before gdb prompt
1064 send_gdb "$command\n"
1065 return [gdb_expect_list $test_name "$gdb_prompt $" $expected_output_list]
1069 # Test that a command gives an error. For pass or fail, return
1070 # a 1 to indicate that more tests can proceed. However a timeout
1071 # is a serious error, generates a special fail message, and causes
1072 # a 0 to be returned to indicate that more tests are likely to fail
1075 proc test_print_reject { args } {
1079 if [llength $args]==2 then {
1080 set expectthis [lindex $args 1]
1082 set expectthis "should never match this bogus string"
1084 set sendthis [lindex $args 0]
1085 if $verbose>2 then {
1086 send_user "Sending \"$sendthis\" to gdb\n"
1087 send_user "Looking to match \"$expectthis\"\n"
1089 send_gdb "$sendthis\n"
1090 #FIXME: Should add timeout as parameter.
1092 -re "A .* in expression.*\\.*$gdb_prompt $" {
1093 pass "reject $sendthis"
1096 -re "Invalid syntax in expression.*$gdb_prompt $" {
1097 pass "reject $sendthis"
1100 -re "Junk after end of expression.*$gdb_prompt $" {
1101 pass "reject $sendthis"
1104 -re "Invalid number.*$gdb_prompt $" {
1105 pass "reject $sendthis"
1108 -re "Invalid character constant.*$gdb_prompt $" {
1109 pass "reject $sendthis"
1112 -re "No symbol table is loaded.*$gdb_prompt $" {
1113 pass "reject $sendthis"
1116 -re "No symbol .* in current context.*$gdb_prompt $" {
1117 pass "reject $sendthis"
1120 -re "Unmatched single quote.*$gdb_prompt $" {
1121 pass "reject $sendthis"
1124 -re "A character constant must contain at least one character.*$gdb_prompt $" {
1125 pass "reject $sendthis"
1128 -re "$expectthis.*$gdb_prompt $" {
1129 pass "reject $sendthis"
1132 -re ".*$gdb_prompt $" {
1133 fail "reject $sendthis"
1137 fail "reject $sendthis (eof or timeout)"
1144 # Same as gdb_test, but the second parameter is not a regexp,
1145 # but a string that must match exactly.
1147 proc gdb_test_exact { args } {
1148 upvar timeout timeout
1150 set command [lindex $args 0]
1152 # This applies a special meaning to a null string pattern. Without
1153 # this, "$pattern\r\n$gdb_prompt $" will match anything, including error
1154 # messages from commands that should have no output except a new
1155 # prompt. With this, only results of a null string will match a null
1158 set pattern [lindex $args 1]
1159 if [string match $pattern ""] {
1160 set pattern [string_to_regexp [lindex $args 0]]
1162 set pattern [string_to_regexp [lindex $args 1]]
1165 # It is most natural to write the pattern argument with only
1166 # embedded \n's, especially if you are trying to avoid Tcl quoting
1167 # problems. But gdb_expect really wants to see \r\n in patterns. So
1168 # transform the pattern here. First transform \r\n back to \n, in
1169 # case some users of gdb_test_exact already do the right thing.
1170 regsub -all "\r\n" $pattern "\n" pattern
1171 regsub -all "\n" $pattern "\r\n" pattern
1172 if [llength $args]==3 then {
1173 set message [lindex $args 2]
1175 set message $command
1178 return [gdb_test $command $pattern $message]
1181 # Wrapper around gdb_test_multiple that looks for a list of expected
1182 # output elements, but which can appear in any order.
1183 # CMD is the gdb command.
1184 # NAME is the name of the test.
1185 # ELM_FIND_REGEXP specifies how to partition the output into elements to
1187 # ELM_EXTRACT_REGEXP specifies the part of ELM_FIND_REGEXP to compare.
1188 # RESULT_MATCH_LIST is a list of exact matches for each expected element.
1189 # All elements of RESULT_MATCH_LIST must appear for the test to pass.
1191 # A typical use of ELM_FIND_REGEXP/ELM_EXTRACT_REGEXP is to extract one line
1192 # of text per element and then strip trailing \r\n's.
1194 # gdb_test_list_exact "foo" "bar" \
1195 # "\[^\r\n\]+\[\r\n\]+" \
1198 # {expected result 1} \
1199 # {expected result 2} \
1202 proc gdb_test_list_exact { cmd name elm_find_regexp elm_extract_regexp result_match_list } {
1205 set matches [lsort $result_match_list]
1207 gdb_test_multiple $cmd $name {
1208 "$cmd\[\r\n\]" { exp_continue }
1209 -re $elm_find_regexp {
1210 set str $expect_out(0,string)
1211 verbose -log "seen: $str" 3
1212 regexp -- $elm_extract_regexp $str elm_seen
1213 verbose -log "extracted: $elm_seen" 3
1214 lappend seen $elm_seen
1217 -re "$gdb_prompt $" {
1219 foreach got [lsort $seen] have $matches {
1220 if {![string equal $got $have]} {
1225 if {[string length $failed] != 0} {
1226 fail "$name ($failed not found)"
1234 # gdb_test_stdio COMMAND INFERIOR_PATTERN GDB_PATTERN MESSAGE
1235 # Send a command to gdb; expect inferior and gdb output.
1237 # See gdb_test_multiple for a description of the COMMAND and MESSAGE
1240 # INFERIOR_PATTERN is the pattern to match against inferior output.
1242 # GDB_PATTERN is the pattern to match against gdb output, and must NOT
1243 # include the \r\n sequence immediately before the gdb prompt, nor the
1244 # prompt. The default is empty.
1246 # Both inferior and gdb patterns must match for a PASS.
1248 # If MESSAGE is ommitted, then COMMAND will be used as the message.
1251 # 1 if the test failed,
1252 # 0 if the test passes,
1253 # -1 if there was an internal error.
1256 proc gdb_test_stdio {command inferior_pattern {gdb_pattern ""} {message ""}} {
1257 global inferior_spawn_id gdb_spawn_id
1260 if {$message == ""} {
1261 set message $command
1264 set inferior_matched 0
1267 # Use an indirect spawn id list, and remove the inferior spawn id
1268 # from the expected output as soon as it matches, in case
1269 # $inferior_pattern happens to be a prefix of the resulting full
1270 # gdb pattern below (e.g., "\r\n").
1271 global gdb_test_stdio_spawn_id_list
1272 set gdb_test_stdio_spawn_id_list "$inferior_spawn_id"
1274 # Note that if $inferior_spawn_id and $gdb_spawn_id are different,
1275 # then we may see gdb's output arriving before the inferior's
1277 set res [gdb_test_multiple $command $message {
1278 -i gdb_test_stdio_spawn_id_list -re "$inferior_pattern" {
1279 set inferior_matched 1
1280 if {!$gdb_matched} {
1281 set gdb_test_stdio_spawn_id_list ""
1285 -i $gdb_spawn_id -re "$gdb_pattern\r\n$gdb_prompt $" {
1287 if {!$inferior_matched} {
1295 verbose -log "inferior_matched=$inferior_matched, gdb_matched=$gdb_matched"
1302 # Issue a PASS and return true if evaluating CONDITION in the caller's
1303 # frame returns true, and issue a FAIL and return false otherwise.
1304 # MESSAGE is the pass/fail message to be printed. If MESSAGE is
1305 # omitted or is empty, then the pass/fail messages use the condition
1306 # string as the message.
1308 proc gdb_assert { condition {message ""} } {
1309 if { $message == ""} {
1310 set message $condition
1313 set res [uplevel 1 expr $condition]
1322 proc gdb_reinitialize_dir { subdir } {
1325 if [is_remote host] {
1330 -re "Reinitialize source path to empty.*y or n. " {
1333 -re "Source directories searched.*$gdb_prompt $" {
1334 send_gdb "dir $subdir\n"
1336 -re "Source directories searched.*$gdb_prompt $" {
1337 verbose "Dir set to $subdir"
1339 -re "$gdb_prompt $" {
1340 perror "Dir \"$subdir\" failed."
1344 -re "$gdb_prompt $" {
1345 perror "Dir \"$subdir\" failed."
1349 -re "$gdb_prompt $" {
1350 perror "Dir \"$subdir\" failed."
1356 # gdb_exit -- exit the GDB, killing the target program if necessary
1358 proc default_gdb_exit {} {
1360 global INTERNAL_GDBFLAGS GDBFLAGS
1362 global gdb_spawn_id inferior_spawn_id
1363 global inotify_log_file
1365 gdb_stop_suppressing_tests
1367 if ![info exists gdb_spawn_id] {
1371 verbose "Quitting $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
1373 if {[info exists inotify_log_file] && [file exists $inotify_log_file]} {
1374 set fd [open $inotify_log_file]
1375 set data [read -nonewline $fd]
1378 if {[string compare $data ""] != 0} {
1379 warning "parallel-unsafe file creations noticed"
1382 set fd [open $inotify_log_file w]
1387 if { [is_remote host] && [board_info host exists fileid] } {
1394 -re "DOSEXIT code" { }
1399 if ![is_remote host] {
1403 unset inferior_spawn_id
1406 # Load a file into the debugger.
1407 # The return value is 0 for success, -1 for failure.
1409 # This procedure also set the global variable GDB_FILE_CMD_DEBUG_INFO
1410 # to one of these values:
1412 # debug file was loaded successfully and has debug information
1413 # nodebug file was loaded successfully and has no debug information
1414 # lzma file was loaded, .gnu_debugdata found, but no LZMA support
1416 # fail file was not loaded
1418 # I tried returning this information as part of the return value,
1419 # but ran into a mess because of the many re-implementations of
1420 # gdb_load in config/*.exp.
1422 # TODO: gdb.base/sepdebug.exp and gdb.stabs/weird.exp might be able to use
1423 # this if they can get more information set.
1425 proc gdb_file_cmd { arg } {
1429 global last_loaded_file
1431 # Save this for the benefit of gdbserver-support.exp.
1432 set last_loaded_file $arg
1434 # Set whether debug info was found.
1435 # Default to "fail".
1436 global gdb_file_cmd_debug_info
1437 set gdb_file_cmd_debug_info "fail"
1439 if [is_remote host] {
1440 set arg [remote_download host $arg]
1442 perror "download failed"
1447 # The file command used to kill the remote target. For the benefit
1448 # of the testsuite, preserve this behavior.
1451 -re "Kill the program being debugged. .y or n. $" {
1453 verbose "\t\tKilling previous program being debugged"
1456 -re "$gdb_prompt $" {
1461 send_gdb "file $arg\n"
1463 -re "Reading symbols from.*LZMA support was disabled.*done.*$gdb_prompt $" {
1464 verbose "\t\tLoaded $arg into $GDB; .gnu_debugdata found but no LZMA available"
1465 set gdb_file_cmd_debug_info "lzma"
1468 -re "Reading symbols from.*no debugging symbols found.*done.*$gdb_prompt $" {
1469 verbose "\t\tLoaded $arg into $GDB with no debugging symbols"
1470 set gdb_file_cmd_debug_info "nodebug"
1473 -re "Reading symbols from.*done.*$gdb_prompt $" {
1474 verbose "\t\tLoaded $arg into $GDB"
1475 set gdb_file_cmd_debug_info "debug"
1478 -re "Load new symbol table from \".*\".*y or n. $" {
1481 -re "Reading symbols from.*done.*$gdb_prompt $" {
1482 verbose "\t\tLoaded $arg with new symbol table into $GDB"
1483 set gdb_file_cmd_debug_info "debug"
1487 perror "Couldn't load $arg, other program already loaded (timeout)."
1491 perror "Couldn't load $arg, other program already loaded (eof)."
1496 -re "No such file or directory.*$gdb_prompt $" {
1497 perror "($arg) No such file or directory"
1500 -re "A problem internal to GDB has been detected" {
1501 fail "($arg) (GDB internal error)"
1502 gdb_internal_error_resync
1505 -re "$gdb_prompt $" {
1506 perror "Couldn't load $arg into $GDB."
1510 perror "Couldn't load $arg into $GDB (timeout)."
1514 # This is an attempt to detect a core dump, but seems not to
1515 # work. Perhaps we need to match .* followed by eof, in which
1516 # gdb_expect does not seem to have a way to do that.
1517 perror "Couldn't load $arg into $GDB (eof)."
1523 # Default gdb_spawn procedure.
1525 proc default_gdb_spawn { } {
1528 global INTERNAL_GDBFLAGS GDBFLAGS
1531 gdb_stop_suppressing_tests
1533 # Set the default value, it may be overriden later by specific testfile.
1535 # Use `set_board_info use_gdb_stub' for the board file to flag the inferior
1536 # is already started after connecting and run/attach are not supported.
1537 # This is used for the "remote" protocol. After GDB starts you should
1538 # check global $use_gdb_stub instead of the board as the testfile may force
1539 # a specific different target protocol itself.
1540 set use_gdb_stub [target_info exists use_gdb_stub]
1542 verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
1544 if [info exists gdb_spawn_id] {
1548 if ![is_remote host] {
1549 if { [which $GDB] == 0 } then {
1550 perror "$GDB does not exist."
1554 set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]
1555 if { $res < 0 || $res == "" } {
1556 perror "Spawning $GDB failed."
1560 set gdb_spawn_id $res
1564 # Default gdb_start procedure.
1566 proc default_gdb_start { } {
1567 global gdb_prompt pagination_prompt
1569 global inferior_spawn_id
1571 if [info exists gdb_spawn_id] {
1580 # Default to assuming inferior I/O is done on GDB's terminal.
1581 if {![info exists inferior_spawn_id]} {
1582 set inferior_spawn_id $gdb_spawn_id
1585 # When running over NFS, particularly if running many simultaneous
1586 # tests on different hosts all using the same server, things can
1587 # get really slow. Give gdb at least 3 minutes to start up.
1589 while { $loop_again } {
1592 -re "$pagination_prompt" {
1593 verbose "Hit pagination during startup. Pressing enter to continue."
1597 -re "\[\r\n\]$gdb_prompt $" {
1598 verbose "GDB initialized."
1600 -re "$gdb_prompt $" {
1601 perror "GDB never initialized."
1606 perror "(timeout) GDB never initialized after 10 seconds."
1614 # force the height to "unlimited", so no pagers get used
1616 send_gdb "set height 0\n"
1618 -re "$gdb_prompt $" {
1619 verbose "Setting height to 0." 2
1622 warning "Couldn't set the height to 0"
1625 # force the width to "unlimited", so no wraparound occurs
1626 send_gdb "set width 0\n"
1628 -re "$gdb_prompt $" {
1629 verbose "Setting width to 0." 2
1632 warning "Couldn't set the width to 0."
1638 # Utility procedure to give user control of the gdb prompt in a script. It is
1639 # meant to be used for debugging test cases, and should not be left in the
1642 proc gdb_interact { } {
1644 set spawn_id $gdb_spawn_id
1646 send_user "+------------------------------------------+\n"
1647 send_user "| Script interrupted, you can now interact |\n"
1648 send_user "| with by gdb. Type >>> to continue. |\n"
1649 send_user "+------------------------------------------+\n"
1656 # Examine the output of compilation to determine whether compilation
1657 # failed or not. If it failed determine whether it is due to missing
1658 # compiler or due to compiler error. Report pass, fail or unsupported
1661 proc gdb_compile_test {src output} {
1662 if { $output == "" } {
1663 pass "compilation [file tail $src]"
1664 } elseif { [regexp {^[a-zA-Z_0-9]+: Can't find [^ ]+\.$} $output] } {
1665 unsupported "compilation [file tail $src]"
1666 } elseif { [regexp {.*: command not found[\r|\n]*$} $output] } {
1667 unsupported "compilation [file tail $src]"
1668 } elseif { [regexp {.*: [^\r\n]*compiler not installed[^\r\n]*[\r|\n]*$} $output] } {
1669 unsupported "compilation [file tail $src]"
1671 verbose -log "compilation failed: $output" 2
1672 fail "compilation [file tail $src]"
1676 # Return a 1 for configurations for which we don't even want to try to
1679 proc skip_cplus_tests {} {
1680 if { [istarget "h8300-*-*"] } {
1684 # The C++ IO streams are too large for HC11/HC12 and are thus not
1685 # available. The gdb C++ tests use them and don't compile.
1686 if { [istarget "m6811-*-*"] } {
1689 if { [istarget "m6812-*-*"] } {
1695 # Return a 1 for configurations for which don't have both C++ and the STL.
1697 proc skip_stl_tests {} {
1698 # Symbian supports the C++ language, but the STL is missing
1699 # (both headers and libraries).
1700 if { [istarget "arm*-*-symbianelf*"] } {
1704 return [skip_cplus_tests]
1707 # Return a 1 if I don't even want to try to test FORTRAN.
1709 proc skip_fortran_tests {} {
1713 # Return a 1 if I don't even want to try to test ada.
1715 proc skip_ada_tests {} {
1719 # Return a 1 if I don't even want to try to test GO.
1721 proc skip_go_tests {} {
1725 # Return a 1 if I don't even want to try to test java.
1727 proc skip_java_tests {} {
1731 # Return a 1 if I don't even want to try to test D.
1733 proc skip_d_tests {} {
1737 # Return 1 to skip Rust tests, 0 to try them.
1738 proc skip_rust_tests {} {
1739 return [expr {![isnative]}]
1742 # Return a 1 for configurations that do not support Python scripting.
1743 # PROMPT_REGEXP is the expected prompt.
1745 proc skip_python_tests_prompt { prompt_regexp } {
1746 global gdb_py_is_py3k
1747 global gdb_py_is_py24
1749 gdb_test_multiple "python print ('test')" "verify python support" {
1750 -re "not supported.*$prompt_regexp" {
1751 unsupported "Python support is disabled."
1754 -re "$prompt_regexp" {}
1757 set gdb_py_is_py24 0
1758 gdb_test_multiple "python print (sys.version_info\[0\])" "check if python 3" {
1759 -re "3.*$prompt_regexp" {
1760 set gdb_py_is_py3k 1
1762 -re ".*$prompt_regexp" {
1763 set gdb_py_is_py3k 0
1766 if { $gdb_py_is_py3k == 0 } {
1767 gdb_test_multiple "python print (sys.version_info\[1\])" "check if python 2.4" {
1768 -re "\[45\].*$prompt_regexp" {
1769 set gdb_py_is_py24 1
1771 -re ".*$prompt_regexp" {
1772 set gdb_py_is_py24 0
1780 # Return a 1 for configurations that do not support Python scripting.
1781 # Note: This also sets various globals that specify which version of Python
1782 # is in use. See skip_python_tests_prompt.
1784 proc skip_python_tests {} {
1786 return [skip_python_tests_prompt "$gdb_prompt $"]
1789 # Return a 1 if we should skip shared library tests.
1791 proc skip_shlib_tests {} {
1792 # Run the shared library tests on native systems.
1797 # An abbreviated list of remote targets where we should be able to
1798 # run shared library tests.
1799 if {([istarget *-*-linux*]
1800 || [istarget *-*-*bsd*]
1801 || [istarget *-*-solaris2*]
1802 || [istarget arm*-*-symbianelf*]
1803 || [istarget *-*-mingw*]
1804 || [istarget *-*-cygwin*]
1805 || [istarget *-*-pe*])} {
1812 # Return 1 if we should skip tui related tests.
1814 proc skip_tui_tests {} {
1817 gdb_test_multiple "help layout" "verify tui support" {
1818 -re "Undefined command: \"layout\".*$gdb_prompt $" {
1821 -re "$gdb_prompt $" {
1828 # Test files shall make sure all the test result lines in gdb.sum are
1829 # unique in a test run, so that comparing the gdb.sum files of two
1830 # test runs gives correct results. Test files that exercise
1831 # variations of the same tests more than once, shall prefix the
1832 # different test invocations with different identifying strings in
1833 # order to make them unique.
1835 # About test prefixes:
1837 # $pf_prefix is the string that dejagnu prints after the result (FAIL,
1838 # PASS, etc.), and before the test message/name in gdb.sum. E.g., the
1839 # underlined substring in
1841 # PASS: gdb.base/mytest.exp: some test
1842 # ^^^^^^^^^^^^^^^^^^^^
1846 # The easiest way to adjust the test prefix is to append a test
1847 # variation prefix to the $pf_prefix, using the with_test_prefix
1850 # proc do_tests {} {
1851 # gdb_test ... ... "test foo"
1852 # gdb_test ... ... "test bar"
1854 # with_test_prefix "subvariation a" {
1855 # gdb_test ... ... "test x"
1858 # with_test_prefix "subvariation b" {
1859 # gdb_test ... ... "test x"
1863 # with_test_prefix "variation1" {
1864 # ...do setup for variation 1...
1868 # with_test_prefix "variation2" {
1869 # ...do setup for variation 2...
1875 # PASS: gdb.base/mytest.exp: variation1: test foo
1876 # PASS: gdb.base/mytest.exp: variation1: test bar
1877 # PASS: gdb.base/mytest.exp: variation1: subvariation a: test x
1878 # PASS: gdb.base/mytest.exp: variation1: subvariation b: test x
1879 # PASS: gdb.base/mytest.exp: variation2: test foo
1880 # PASS: gdb.base/mytest.exp: variation2: test bar
1881 # PASS: gdb.base/mytest.exp: variation2: subvariation a: test x
1882 # PASS: gdb.base/mytest.exp: variation2: subvariation b: test x
1884 # If for some reason more flexibility is necessary, one can also
1885 # manipulate the pf_prefix global directly, treating it as a string.
1889 # set saved_pf_prefix
1890 # append pf_prefix "${foo}: bar"
1891 # ... actual tests ...
1892 # set pf_prefix $saved_pf_prefix
1895 # Run BODY in the context of the caller, with the current test prefix
1896 # (pf_prefix) appended with one space, then PREFIX, and then a colon.
1897 # Returns the result of BODY.
1899 proc with_test_prefix { prefix body } {
1902 set saved $pf_prefix
1903 append pf_prefix " " $prefix ":"
1904 set code [catch {uplevel 1 $body} result]
1905 set pf_prefix $saved
1908 global errorInfo errorCode
1909 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
1911 return -code $code $result
1915 # Wrapper for foreach that calls with_test_prefix on each iteration,
1916 # including the iterator's name and current value in the prefix.
1918 proc foreach_with_prefix {var list body} {
1920 foreach myvar $list {
1921 with_test_prefix "$var=$myvar" {
1927 # Run BODY in the context of the caller. After BODY is run, the variables
1928 # listed in VARS will be reset to the values they had before BODY was run.
1930 # This is useful for providing a scope in which it is safe to temporarily
1931 # modify global variables, e.g.
1933 # global INTERNAL_GDBFLAGS
1936 # set foo GDBHISTSIZE
1938 # save_vars { INTERNAL_GDBFLAGS env($foo) env(HOME) } {
1939 # append INTERNAL_GDBFLAGS " -nx"
1940 # unset -nocomplain env(GDBHISTSIZE)
1945 # Here, although INTERNAL_GDBFLAGS, env(GDBHISTSIZE) and env(HOME) may be
1946 # modified inside BODY, this proc guarantees that the modifications will be
1947 # undone after BODY finishes executing.
1949 proc save_vars { vars body } {
1950 array set saved_scalars { }
1951 array set saved_arrays { }
1955 # First evaluate VAR in the context of the caller in case the variable
1956 # name may be a not-yet-interpolated string like env($foo)
1957 set var [uplevel 1 list $var]
1959 if [uplevel 1 [list info exists $var]] {
1960 if [uplevel 1 [list array exists $var]] {
1961 set saved_arrays($var) [uplevel 1 [list array get $var]]
1963 set saved_scalars($var) [uplevel 1 [list set $var]]
1966 lappend unset_vars $var
1970 set code [catch {uplevel 1 $body} result]
1972 foreach {var value} [array get saved_scalars] {
1973 uplevel 1 [list set $var $value]
1976 foreach {var value} [array get saved_arrays] {
1977 uplevel 1 [list unset $var]
1978 uplevel 1 [list array set $var $value]
1981 foreach var $unset_vars {
1982 uplevel 1 [list unset -nocomplain $var]
1986 global errorInfo errorCode
1987 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
1989 return -code $code $result
1994 # Run tests in BODY with GDB prompt and variable $gdb_prompt set to
1995 # PROMPT. When BODY is finished, restore GDB prompt and variable
1997 # Returns the result of BODY.
2001 # 1) If you want to use, for example, "(foo)" as the prompt you must pass it
2002 # as "(foo)", and not the regexp form "\(foo\)" (expressed as "\\(foo\\)" in
2003 # TCL). PROMPT is internally converted to a suitable regexp for matching.
2004 # We do the conversion from "(foo)" to "\(foo\)" here for a few reasons:
2005 # a) It's more intuitive for callers to pass the plain text form.
2006 # b) We need two forms of the prompt:
2007 # - a regexp to use in output matching,
2008 # - a value to pass to the "set prompt" command.
2009 # c) It's easier to convert the plain text form to its regexp form.
2011 # 2) Don't add a trailing space, we do that here.
2013 proc with_gdb_prompt { prompt body } {
2016 # Convert "(foo)" to "\(foo\)".
2017 # We don't use string_to_regexp because while it works today it's not
2018 # clear it will work tomorrow: the value we need must work as both a
2019 # regexp *and* as the argument to the "set prompt" command, at least until
2020 # we start recording both forms separately instead of just $gdb_prompt.
2021 # The testsuite is pretty-much hardwired to interpret $gdb_prompt as the
2023 regsub -all {[]*+.|()^$\[\\]} $prompt {\\&} prompt
2025 set saved $gdb_prompt
2027 verbose -log "Setting gdb prompt to \"$prompt \"."
2028 set gdb_prompt $prompt
2029 gdb_test_no_output "set prompt $prompt " ""
2031 set code [catch {uplevel 1 $body} result]
2033 verbose -log "Restoring gdb prompt to \"$saved \"."
2034 set gdb_prompt $saved
2035 gdb_test_no_output "set prompt $saved " ""
2038 global errorInfo errorCode
2039 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2041 return -code $code $result
2045 # Run tests in BODY with target-charset setting to TARGET_CHARSET. When
2046 # BODY is finished, restore target-charset.
2048 proc with_target_charset { target_charset body } {
2052 gdb_test_multiple "show target-charset" "" {
2053 -re "The target character set is \".*; currently (.*)\"\..*$gdb_prompt " {
2054 set saved $expect_out(1,string)
2056 -re "The target character set is \"(.*)\".*$gdb_prompt " {
2057 set saved $expect_out(1,string)
2059 -re ".*$gdb_prompt " {
2060 fail "get target-charset"
2064 gdb_test_no_output "set target-charset $target_charset" ""
2066 set code [catch {uplevel 1 $body} result]
2068 gdb_test_no_output "set target-charset $saved" ""
2071 global errorInfo errorCode
2072 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2074 return -code $code $result
2078 # Select the largest timeout from all the timeouts:
2079 # - the local "timeout" variable of the scope two levels above,
2080 # - the global "timeout" variable,
2081 # - the board variable "gdb,timeout".
2083 proc get_largest_timeout {} {
2084 upvar #0 timeout gtimeout
2085 upvar 2 timeout timeout
2088 if [info exists timeout] {
2091 if { [info exists gtimeout] && $gtimeout > $tmt } {
2094 if { [target_info exists gdb,timeout]
2095 && [target_info gdb,timeout] > $tmt } {
2096 set tmt [target_info gdb,timeout]
2106 # Run tests in BODY with timeout increased by factor of FACTOR. When
2107 # BODY is finished, restore timeout.
2109 proc with_timeout_factor { factor body } {
2112 set savedtimeout $timeout
2114 set timeout [expr [get_largest_timeout] * $factor]
2115 set code [catch {uplevel 1 $body} result]
2117 set timeout $savedtimeout
2119 global errorInfo errorCode
2120 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2122 return -code $code $result
2126 # Return 1 if _Complex types are supported, otherwise, return 0.
2128 gdb_caching_proc support_complex_tests {
2129 # Set up, compile, and execute a test program containing _Complex types.
2130 # Include the current process ID in the file names to prevent conflicts
2131 # with invocations for multiple testsuites.
2132 set src [standard_temp_file complex[pid].c]
2133 set exe [standard_temp_file complex[pid].x]
2135 gdb_produce_source $src {
2139 _Complex long double cld;
2144 verbose "compiling testfile $src" 2
2145 set compile_flags {debug nowarnings quiet}
2146 set lines [gdb_compile $src $exe executable $compile_flags]
2150 if ![string match "" $lines] then {
2151 verbose "testfile compilation failed, returning 0" 2
2160 # Return 1 if GDB can get a type for siginfo from the target, otherwise
2163 proc supports_get_siginfo_type {} {
2164 if { [istarget "*-*-linux*"] } {
2171 # Return 1 if the target supports hardware single stepping.
2173 proc can_hardware_single_step {} {
2175 if { [istarget "arm*-*-*"] || [istarget "mips*-*-*"]
2176 || [istarget "tic6x-*-*"] || [istarget "sparc*-*-linux*"]
2177 || [istarget "nios2-*-*"] } {
2184 # Return 1 if target hardware or OS supports single stepping to signal
2185 # handler, otherwise, return 0.
2187 proc can_single_step_to_signal_handler {} {
2188 # Targets don't have hardware single step. On these targets, when
2189 # a signal is delivered during software single step, gdb is unable
2190 # to determine the next instruction addresses, because start of signal
2191 # handler is one of them.
2192 return [can_hardware_single_step]
2195 # Return 1 if target supports process record, otherwise return 0.
2197 proc supports_process_record {} {
2199 if [target_info exists gdb,use_precord] {
2200 return [target_info gdb,use_precord]
2203 if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
2204 || [istarget "i\[34567\]86-*-linux*"]
2205 || [istarget "aarch64*-*-linux*"]
2206 || [istarget "powerpc*-*-linux*"]
2207 || [istarget "s390*-*-linux*"] } {
2214 # Return 1 if target supports reverse debugging, otherwise return 0.
2216 proc supports_reverse {} {
2218 if [target_info exists gdb,can_reverse] {
2219 return [target_info gdb,can_reverse]
2222 if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
2223 || [istarget "i\[34567\]86-*-linux*"]
2224 || [istarget "aarch64*-*-linux*"]
2225 || [istarget "powerpc*-*-linux*"]
2226 || [istarget "s390*-*-linux*"] } {
2233 # Return 1 if readline library is used.
2235 proc readline_is_used { } {
2238 gdb_test_multiple "show editing" "" {
2239 -re ".*Editing of command lines as they are typed is on\..*$gdb_prompt $" {
2242 -re ".*$gdb_prompt $" {
2248 # Return 1 if target is ELF.
2249 gdb_caching_proc is_elf_target {
2250 set me "is_elf_target"
2252 set src [standard_temp_file is_elf_target[pid].c]
2253 set obj [standard_temp_file is_elf_target[pid].o]
2255 gdb_produce_source $src {
2256 int foo () {return 0;}
2259 verbose "$me: compiling testfile $src" 2
2260 set lines [gdb_compile $src $obj object {quiet}]
2264 if ![string match "" $lines] then {
2265 verbose "$me: testfile compilation failed, returning 0" 2
2269 set fp_obj [open $obj "r"]
2270 fconfigure $fp_obj -translation binary
2271 set data [read $fp_obj]
2276 set ELFMAG "\u007FELF"
2278 if {[string compare -length 4 $data $ELFMAG] != 0} {
2279 verbose "$me: returning 0" 2
2283 verbose "$me: returning 1" 2
2287 # Return 1 if the memory at address zero is readable.
2289 gdb_caching_proc is_address_zero_readable {
2293 gdb_test_multiple "x 0" "" {
2294 -re "Cannot access memory at address 0x0.*$gdb_prompt $" {
2297 -re ".*$gdb_prompt $" {
2305 # Produce source file NAME and write SOURCES into it.
2307 proc gdb_produce_source { name sources } {
2309 set f [open $name "w"]
2315 # Return 1 if target is ILP32.
2316 # This cannot be decided simply from looking at the target string,
2317 # as it might depend on externally passed compiler options like -m64.
2318 gdb_caching_proc is_ilp32_target {
2319 set me "is_ilp32_target"
2321 set src [standard_temp_file ilp32[pid].c]
2322 set obj [standard_temp_file ilp32[pid].o]
2324 gdb_produce_source $src {
2325 int dummy[sizeof (int) == 4
2326 && sizeof (void *) == 4
2327 && sizeof (long) == 4 ? 1 : -1];
2330 verbose "$me: compiling testfile $src" 2
2331 set lines [gdb_compile $src $obj object {quiet}]
2335 if ![string match "" $lines] then {
2336 verbose "$me: testfile compilation failed, returning 0" 2
2340 verbose "$me: returning 1" 2
2344 # Return 1 if target is LP64.
2345 # This cannot be decided simply from looking at the target string,
2346 # as it might depend on externally passed compiler options like -m64.
2347 gdb_caching_proc is_lp64_target {
2348 set me "is_lp64_target"
2350 set src [standard_temp_file lp64[pid].c]
2351 set obj [standard_temp_file lp64[pid].o]
2353 gdb_produce_source $src {
2354 int dummy[sizeof (int) == 4
2355 && sizeof (void *) == 8
2356 && sizeof (long) == 8 ? 1 : -1];
2359 verbose "$me: compiling testfile $src" 2
2360 set lines [gdb_compile $src $obj object {quiet}]
2364 if ![string match "" $lines] then {
2365 verbose "$me: testfile compilation failed, returning 0" 2
2369 verbose "$me: returning 1" 2
2373 # Return 1 if target has 64 bit addresses.
2374 # This cannot be decided simply from looking at the target string,
2375 # as it might depend on externally passed compiler options like -m64.
2376 gdb_caching_proc is_64_target {
2377 set me "is_64_target"
2379 set src [standard_temp_file is64[pid].c]
2380 set obj [standard_temp_file is64[pid].o]
2382 gdb_produce_source $src {
2383 int function(void) { return 3; }
2384 int dummy[sizeof (&function) == 8 ? 1 : -1];
2387 verbose "$me: compiling testfile $src" 2
2388 set lines [gdb_compile $src $obj object {quiet}]
2392 if ![string match "" $lines] then {
2393 verbose "$me: testfile compilation failed, returning 0" 2
2397 verbose "$me: returning 1" 2
2401 # Return 1 if target has x86_64 registers - either amd64 or x32.
2402 # x32 target identifies as x86_64-*-linux*, therefore it cannot be determined
2403 # just from the target string.
2404 gdb_caching_proc is_amd64_regs_target {
2405 if {![istarget "x86_64-*-*"] && ![istarget "i?86-*"]} {
2409 set me "is_amd64_regs_target"
2411 set src [standard_temp_file reg64[pid].s]
2412 set obj [standard_temp_file reg64[pid].o]
2416 {rax rbx rcx rdx rsi rdi rbp rsp r8 r9 r10 r11 r12 r13 r14 r15} {
2417 lappend list "\tincq %$reg"
2419 gdb_produce_source $src [join $list \n]
2421 verbose "$me: compiling testfile $src" 2
2422 set lines [gdb_compile $src $obj object {quiet}]
2426 if ![string match "" $lines] then {
2427 verbose "$me: testfile compilation failed, returning 0" 2
2431 verbose "$me: returning 1" 2
2435 # Return 1 if this target is an x86 or x86-64 with -m32.
2436 proc is_x86_like_target {} {
2437 if {![istarget "x86_64-*-*"] && ![istarget i?86-*]} {
2440 return [expr [is_ilp32_target] && ![is_amd64_regs_target]]
2443 # Return 1 if this target is an arm or aarch32 on aarch64.
2445 gdb_caching_proc is_aarch32_target {
2446 if { [istarget "arm*-*-*"] } {
2450 if { ![istarget "aarch64*-*-*"] } {
2454 set me "is_aarch32_target"
2456 set src [standard_temp_file aarch32[pid].s]
2457 set obj [standard_temp_file aarch32[pid].o]
2462 lappend list "\tmov $reg, $reg"
2464 gdb_produce_source $src [join $list \n]
2466 verbose "$me: compiling testfile $src" 2
2467 set lines [gdb_compile $src $obj object {quiet}]
2471 if ![string match "" $lines] then {
2472 verbose "$me: testfile compilation failed, returning 0" 2
2476 verbose "$me: returning 1" 2
2480 # Return 1 if this target is an aarch64, either lp64 or ilp32.
2482 proc is_aarch64_target {} {
2483 if { ![istarget "aarch64*-*-*"] } {
2487 return [expr ![is_aarch32_target]]
2490 # Return 1 if displaced stepping is supported on target, otherwise, return 0.
2491 proc support_displaced_stepping {} {
2493 if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"]
2494 || [istarget "arm*-*-linux*"] || [istarget "powerpc-*-linux*"]
2495 || [istarget "powerpc64-*-linux*"] || [istarget "s390*-*-*"]
2496 || [istarget "aarch64*-*-linux*"] } {
2503 # Run a test on the target to see if it supports vmx hardware. Return 0 if so,
2504 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2506 gdb_caching_proc skip_altivec_tests {
2507 global srcdir subdir gdb_prompt inferior_exited_re
2509 set me "skip_altivec_tests"
2511 # Some simulators are known to not support VMX instructions.
2512 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
2513 verbose "$me: target known to not support VMX, returning 1" 2
2517 # Make sure we have a compiler that understands altivec.
2518 set compile_flags {debug nowarnings}
2519 if [get_compiler_info] {
2520 warning "Could not get compiler info"
2523 if [test_compiler_info gcc*] {
2524 set compile_flags "$compile_flags additional_flags=-maltivec"
2525 } elseif [test_compiler_info xlc*] {
2526 set compile_flags "$compile_flags additional_flags=-qaltivec"
2528 verbose "Could not compile with altivec support, returning 1" 2
2532 # Set up, compile, and execute a test program containing VMX instructions.
2533 # Include the current process ID in the file names to prevent conflicts
2534 # with invocations for multiple testsuites.
2535 set src [standard_temp_file vmx[pid].c]
2536 set exe [standard_temp_file vmx[pid].x]
2538 gdb_produce_source $src {
2541 asm volatile ("vor v0,v0,v0");
2543 asm volatile ("vor 0,0,0");
2549 verbose "$me: compiling testfile $src" 2
2550 set lines [gdb_compile $src $exe executable $compile_flags]
2553 if ![string match "" $lines] then {
2554 verbose "$me: testfile compilation failed, returning 1" 2
2558 # No error message, compilation succeeded so now run it via gdb.
2562 gdb_reinitialize_dir $srcdir/$subdir
2566 -re ".*Illegal instruction.*${gdb_prompt} $" {
2567 verbose -log "\n$me altivec hardware not detected"
2568 set skip_vmx_tests 1
2570 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
2571 verbose -log "\n$me: altivec hardware detected"
2572 set skip_vmx_tests 0
2575 warning "\n$me: default case taken"
2576 set skip_vmx_tests 1
2580 remote_file build delete $exe
2582 verbose "$me: returning $skip_vmx_tests" 2
2583 return $skip_vmx_tests
2586 # Run a test on the target to see if it supports vmx hardware. Return 0 if so,
2587 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2589 gdb_caching_proc skip_vsx_tests {
2590 global srcdir subdir gdb_prompt inferior_exited_re
2592 set me "skip_vsx_tests"
2594 # Some simulators are known to not support Altivec instructions, so
2595 # they won't support VSX instructions as well.
2596 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
2597 verbose "$me: target known to not support VSX, returning 1" 2
2601 # Make sure we have a compiler that understands altivec.
2602 set compile_flags {debug nowarnings quiet}
2603 if [get_compiler_info] {
2604 warning "Could not get compiler info"
2607 if [test_compiler_info gcc*] {
2608 set compile_flags "$compile_flags additional_flags=-mvsx"
2609 } elseif [test_compiler_info xlc*] {
2610 set compile_flags "$compile_flags additional_flags=-qasm=gcc"
2612 verbose "Could not compile with vsx support, returning 1" 2
2616 set src [standard_temp_file vsx[pid].c]
2617 set exe [standard_temp_file vsx[pid].x]
2619 gdb_produce_source $src {
2621 double a[2] = { 1.0, 2.0 };
2623 asm volatile ("lxvd2x v0,v0,%[addr]" : : [addr] "r" (a));
2625 asm volatile ("lxvd2x 0,0,%[addr]" : : [addr] "r" (a));
2631 verbose "$me: compiling testfile $src" 2
2632 set lines [gdb_compile $src $exe executable $compile_flags]
2635 if ![string match "" $lines] then {
2636 verbose "$me: testfile compilation failed, returning 1" 2
2640 # No error message, compilation succeeded so now run it via gdb.
2644 gdb_reinitialize_dir $srcdir/$subdir
2648 -re ".*Illegal instruction.*${gdb_prompt} $" {
2649 verbose -log "\n$me VSX hardware not detected"
2650 set skip_vsx_tests 1
2652 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
2653 verbose -log "\n$me: VSX hardware detected"
2654 set skip_vsx_tests 0
2657 warning "\n$me: default case taken"
2658 set skip_vsx_tests 1
2662 remote_file build delete $exe
2664 verbose "$me: returning $skip_vsx_tests" 2
2665 return $skip_vsx_tests
2668 # Run a test on the target to see if it supports TSX hardware. Return 0 if so,
2669 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2671 gdb_caching_proc skip_tsx_tests {
2672 global srcdir subdir gdb_prompt inferior_exited_re
2674 set me "skip_tsx_tests"
2676 set src [standard_temp_file tsx[pid].c]
2677 set exe [standard_temp_file tsx[pid].x]
2679 gdb_produce_source $src {
2681 asm volatile ("xbegin .L0");
2682 asm volatile ("xend");
2683 asm volatile (".L0: nop");
2688 verbose "$me: compiling testfile $src" 2
2689 set lines [gdb_compile $src $exe executable {nowarnings quiet}]
2692 if ![string match "" $lines] then {
2693 verbose "$me: testfile compilation failed." 2
2697 # No error message, compilation succeeded so now run it via gdb.
2701 gdb_reinitialize_dir $srcdir/$subdir
2705 -re ".*Illegal instruction.*${gdb_prompt} $" {
2706 verbose -log "$me: TSX hardware not detected."
2707 set skip_tsx_tests 1
2709 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
2710 verbose -log "$me: TSX hardware detected."
2711 set skip_tsx_tests 0
2714 warning "\n$me: default case taken."
2715 set skip_tsx_tests 1
2719 remote_file build delete $exe
2721 verbose "$me: returning $skip_tsx_tests" 2
2722 return $skip_tsx_tests
2725 # Run a test on the target to see if it supports btrace hardware. Return 0 if so,
2726 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2728 gdb_caching_proc skip_btrace_tests {
2729 global srcdir subdir gdb_prompt inferior_exited_re
2731 set me "skip_btrace_tests"
2732 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
2733 verbose "$me: target does not support btrace, returning 1" 2
2737 # Set up, compile, and execute a test program.
2738 # Include the current process ID in the file names to prevent conflicts
2739 # with invocations for multiple testsuites.
2740 set src [standard_temp_file btrace[pid].c]
2741 set exe [standard_temp_file btrace[pid].x]
2743 gdb_produce_source $src {
2744 int main(void) { return 0; }
2747 verbose "$me: compiling testfile $src" 2
2748 set compile_flags {debug nowarnings quiet}
2749 set lines [gdb_compile $src $exe executable $compile_flags]
2751 if ![string match "" $lines] then {
2752 verbose "$me: testfile compilation failed, returning 1" 2
2757 # No error message, compilation succeeded so now run it via gdb.
2761 gdb_reinitialize_dir $srcdir/$subdir
2768 # In case of an unexpected output, we return 2 as a fail value.
2769 set skip_btrace_tests 2
2770 gdb_test_multiple "record btrace" "check btrace support" {
2771 -re "You can't do that when your target is.*\r\n$gdb_prompt $" {
2772 set skip_btrace_tests 1
2774 -re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
2775 set skip_btrace_tests 1
2777 -re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
2778 set skip_btrace_tests 1
2780 -re "^record btrace\r\n$gdb_prompt $" {
2781 set skip_btrace_tests 0
2785 remote_file build delete $exe
2787 verbose "$me: returning $skip_btrace_tests" 2
2788 return $skip_btrace_tests
2791 # Run a test on the target to see if it supports btrace pt hardware.
2792 # Return 0 if so, 1 if it does not. Based on 'check_vmx_hw_available'
2793 # from the GCC testsuite.
2795 gdb_caching_proc skip_btrace_pt_tests {
2796 global srcdir subdir gdb_prompt inferior_exited_re
2798 set me "skip_btrace_tests"
2799 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
2800 verbose "$me: target does not support btrace, returning 1" 2
2804 # Set up, compile, and execute a test program.
2805 # Include the current process ID in the file names to prevent conflicts
2806 # with invocations for multiple testsuites.
2807 set src [standard_temp_file btrace[pid].c]
2808 set exe [standard_temp_file btrace[pid].x]
2810 gdb_produce_source $src {
2811 int main(void) { return 0; }
2814 verbose "$me: compiling testfile $src" 2
2815 set compile_flags {debug nowarnings quiet}
2816 set lines [gdb_compile $src $exe executable $compile_flags]
2818 if ![string match "" $lines] then {
2819 verbose "$me: testfile compilation failed, returning 1" 2
2824 # No error message, compilation succeeded so now run it via gdb.
2828 gdb_reinitialize_dir $srcdir/$subdir
2835 # In case of an unexpected output, we return 2 as a fail value.
2836 set skip_btrace_tests 2
2837 gdb_test_multiple "record btrace pt" "check btrace support" {
2838 -re "You can't do that when your target is.*\r\n$gdb_prompt $" {
2839 set skip_btrace_tests 1
2841 -re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
2842 set skip_btrace_tests 1
2844 -re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
2845 set skip_btrace_tests 1
2847 -re "GDB does not support.*\r\n$gdb_prompt $" {
2848 set skip_btrace_tests 1
2850 -re "^record btrace pt\r\n$gdb_prompt $" {
2851 set skip_btrace_tests 0
2855 remote_file build delete $exe
2857 verbose "$me: returning $skip_btrace_tests" 2
2858 return $skip_btrace_tests
2861 # Return whether we should skip tests for showing inlined functions in
2862 # backtraces. Requires get_compiler_info and get_debug_format.
2864 proc skip_inline_frame_tests {} {
2865 # GDB only recognizes inlining information in DWARF 2 (DWARF 3).
2866 if { ! [test_debug_format "DWARF 2"] } {
2870 # GCC before 4.1 does not emit DW_AT_call_file / DW_AT_call_line.
2871 if { ([test_compiler_info "gcc-2-*"]
2872 || [test_compiler_info "gcc-3-*"]
2873 || [test_compiler_info "gcc-4-0-*"]) } {
2880 # Return whether we should skip tests for showing variables from
2881 # inlined functions. Requires get_compiler_info and get_debug_format.
2883 proc skip_inline_var_tests {} {
2884 # GDB only recognizes inlining information in DWARF 2 (DWARF 3).
2885 if { ! [test_debug_format "DWARF 2"] } {
2892 # Return a 1 if we should skip tests that require hardware breakpoints
2894 proc skip_hw_breakpoint_tests {} {
2895 # Skip tests if requested by the board (note that no_hardware_watchpoints
2896 # disables both watchpoints and breakpoints)
2897 if { [target_info exists gdb,no_hardware_watchpoints]} {
2901 # These targets support hardware breakpoints natively
2902 if { [istarget "i?86-*-*"]
2903 || [istarget "x86_64-*-*"]
2904 || [istarget "ia64-*-*"]
2905 || [istarget "arm*-*-*"]
2906 || [istarget "aarch64*-*-*"]} {
2913 # Return a 1 if we should skip tests that require hardware watchpoints
2915 proc skip_hw_watchpoint_tests {} {
2916 # Skip tests if requested by the board
2917 if { [target_info exists gdb,no_hardware_watchpoints]} {
2921 # These targets support hardware watchpoints natively
2922 if { [istarget "i?86-*-*"]
2923 || [istarget "x86_64-*-*"]
2924 || [istarget "ia64-*-*"]
2925 || [istarget "arm*-*-*"]
2926 || [istarget "aarch64*-*-*"]
2927 || [istarget "powerpc*-*-linux*"]
2928 || [istarget "s390*-*-*"] } {
2935 # Return a 1 if we should skip tests that require *multiple* hardware
2936 # watchpoints to be active at the same time
2938 proc skip_hw_watchpoint_multi_tests {} {
2939 if { [skip_hw_watchpoint_tests] } {
2943 # These targets support just a single hardware watchpoint
2944 if { [istarget "arm*-*-*"]
2945 || [istarget "powerpc*-*-linux*"] } {
2952 # Return a 1 if we should skip tests that require read/access watchpoints
2954 proc skip_hw_watchpoint_access_tests {} {
2955 if { [skip_hw_watchpoint_tests] } {
2959 # These targets support just write watchpoints
2960 if { [istarget "s390*-*-*"] } {
2967 # Return 1 if we should skip tests that require the runtime unwinder
2968 # hook. This must be invoked while gdb is running, after shared
2969 # libraries have been loaded. This is needed because otherwise a
2970 # shared libgcc won't be visible.
2972 proc skip_unwinder_tests {} {
2976 gdb_test_multiple "print _Unwind_DebugHook" "check for unwinder hook" {
2977 -re "= .*no debug info.*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
2979 -re "= .*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
2982 -re "No symbol .* in current context.\r\n$gdb_prompt $" {
2986 gdb_test_multiple "info probe" "check for stap probe in unwinder" {
2987 -re ".*libgcc.*unwind.*\r\n$gdb_prompt $" {
2990 -re "\r\n$gdb_prompt $" {
2997 # Return 0 if we should skip tests that require the libstdc++ stap
2998 # probes. This must be invoked while gdb is running, after shared
2999 # libraries have been loaded.
3001 proc skip_libstdcxx_probe_tests {} {
3005 gdb_test_multiple "info probe" "check for stap probe in libstdc++" {
3006 -re ".*libstdcxx.*catch.*\r\n$gdb_prompt $" {
3009 -re "\r\n$gdb_prompt $" {
3015 # Return 1 if we should skip tests of the "compile" feature.
3016 # This must be invoked after the inferior has been started.
3018 proc skip_compile_feature_tests {} {
3022 gdb_test_multiple "compile code -- ;" "check for working compile command" {
3023 "Could not load libcc1.*\r\n$gdb_prompt $" {
3026 -re "Command not supported on this host\\..*\r\n$gdb_prompt $" {
3029 -re "\r\n$gdb_prompt $" {
3035 # Helper for gdb_is_target_remote. PROMPT_REGEXP is the expected
3038 proc gdb_is_target_remote_prompt { prompt_regexp } {
3040 set test "probe for target remote"
3041 gdb_test_multiple "maint print target-stack" $test {
3042 -re ".*emote serial target in gdb-specific protocol.*$prompt_regexp" {
3046 -re "$prompt_regexp" {
3053 # Check whether we're testing with the remote or extended-remote
3056 proc gdb_is_target_remote {} {
3059 return [gdb_is_target_remote_prompt "$gdb_prompt $"]
3062 # Return the effective value of use_gdb_stub.
3064 # If the use_gdb_stub global has been set (it is set when the gdb process is
3065 # spawned), return that. Otherwise, return the value of the use_gdb_stub
3066 # property from the board file.
3068 # This is the preferred way of checking use_gdb_stub, since it allows to check
3069 # the value before the gdb has been spawned and it will return the correct value
3070 # even when it was overriden by the test.
3072 proc use_gdb_stub {} {
3075 if [info exists use_gdb_stub] {
3076 return $use_gdb_stub
3079 return [target_info exists use_gdb_stub]
3082 # Return 1 if the current remote target is an instance of our GDBserver, 0
3083 # otherwise. Return -1 if there was an error and we can't tell.
3085 gdb_caching_proc target_is_gdbserver {
3089 set test "Probing for GDBserver"
3091 gdb_test_multiple "monitor help" $test {
3092 -re "The following monitor commands are supported.*Quit GDBserver.*$gdb_prompt $" {
3095 -re "$gdb_prompt $" {
3100 if { $is_gdbserver == -1 } {
3101 verbose -log "Unable to tell whether we are using GDBserver or not."
3104 return $is_gdbserver
3107 # N.B. compiler_info is intended to be local to this file.
3108 # Call test_compiler_info with no arguments to fetch its value.
3109 # Yes, this is counterintuitive when there's get_compiler_info,
3110 # but that's the current API.
3111 if [info exists compiler_info] {
3117 # Figure out what compiler I am using.
3118 # The result is cached so only the first invocation runs the compiler.
3120 # ARG can be empty or "C++". If empty, "C" is assumed.
3122 # There are several ways to do this, with various problems.
3124 # [ gdb_compile -E $ifile -o $binfile.ci ]
3125 # source $binfile.ci
3127 # Single Unix Spec v3 says that "-E -o ..." together are not
3128 # specified. And in fact, the native compiler on hp-ux 11 (among
3129 # others) does not work with "-E -o ...". Most targets used to do
3130 # this, and it mostly worked, because it works with gcc.
3132 # [ catch "exec $compiler -E $ifile > $binfile.ci" exec_output ]
3133 # source $binfile.ci
3135 # This avoids the problem with -E and -o together. This almost works
3136 # if the build machine is the same as the host machine, which is
3137 # usually true of the targets which are not gcc. But this code does
3138 # not figure which compiler to call, and it always ends up using the C
3139 # compiler. Not good for setting hp_aCC_compiler. Target
3140 # hppa*-*-hpux* used to do this.
3142 # [ gdb_compile -E $ifile > $binfile.ci ]
3143 # source $binfile.ci
3145 # dejagnu target_compile says that it supports output redirection,
3146 # but the code is completely different from the normal path and I
3147 # don't want to sweep the mines from that path. So I didn't even try
3150 # set cppout [ gdb_compile $ifile "" preprocess $args quiet ]
3153 # I actually do this for all targets now. gdb_compile runs the right
3154 # compiler, and TCL captures the output, and I eval the output.
3156 # Unfortunately, expect logs the output of the command as it goes by,
3157 # and dejagnu helpfully prints a second copy of it right afterwards.
3158 # So I turn off expect logging for a moment.
3160 # [ gdb_compile $ifile $ciexe_file executable $args ]
3161 # [ remote_exec $ciexe_file ]
3162 # [ source $ci_file.out ]
3164 # I could give up on -E and just do this.
3165 # I didn't get desperate enough to try this.
3167 # -- chastain 2004-01-06
3169 proc get_compiler_info {{arg ""}} {
3170 # For compiler.c and compiler.cc
3173 # I am going to play with the log to keep noise out.
3177 # These come from compiler.c or compiler.cc
3178 global compiler_info
3180 # Legacy global data symbols.
3183 if [info exists compiler_info] {
3188 # Choose which file to preprocess.
3189 set ifile "${srcdir}/lib/compiler.c"
3190 if { $arg == "c++" } {
3191 set ifile "${srcdir}/lib/compiler.cc"
3194 # Run $ifile through the right preprocessor.
3195 # Toggle gdb.log to keep the compiler output out of the log.
3196 set saved_log [log_file -info]
3198 if [is_remote host] {
3199 # We have to use -E and -o together, despite the comments
3200 # above, because of how DejaGnu handles remote host testing.
3201 set ppout "$outdir/compiler.i"
3202 gdb_compile "${ifile}" "$ppout" preprocess [list "$arg" quiet]
3203 set file [open $ppout r]
3204 set cppout [read $file]
3207 set cppout [ gdb_compile "${ifile}" "" preprocess [list "$arg" quiet] ]
3209 eval log_file $saved_log
3213 foreach cppline [ split "$cppout" "\n" ] {
3214 if { [ regexp "^#" "$cppline" ] } {
3216 } elseif { [ regexp "^\[\n\r\t \]*$" "$cppline" ] } {
3218 } elseif { [ regexp "^\[\n\r\t \]*set\[\n\r\t \]" "$cppline" ] } {
3220 verbose "get_compiler_info: $cppline" 2
3224 verbose -log "get_compiler_info: $cppline"
3229 # Set to unknown if for some reason compiler_info didn't get defined.
3230 if ![info exists compiler_info] {
3231 verbose -log "get_compiler_info: compiler_info not provided"
3232 set compiler_info "unknown"
3234 # Also set to unknown compiler if any diagnostics happened.
3236 verbose -log "get_compiler_info: got unexpected diagnostics"
3237 set compiler_info "unknown"
3240 # Set the legacy symbols.
3242 if { [regexp "^gcc-1-" "$compiler_info" ] } { set gcc_compiled 1 }
3243 if { [regexp "^gcc-2-" "$compiler_info" ] } { set gcc_compiled 2 }
3244 if { [regexp "^gcc-3-" "$compiler_info" ] } { set gcc_compiled 3 }
3245 if { [regexp "^gcc-4-" "$compiler_info" ] } { set gcc_compiled 4 }
3246 if { [regexp "^gcc-5-" "$compiler_info" ] } { set gcc_compiled 5 }
3248 # Log what happened.
3249 verbose -log "get_compiler_info: $compiler_info"
3251 # Most compilers will evaluate comparisons and other boolean
3252 # operations to 0 or 1.
3253 uplevel \#0 { set true 1 }
3254 uplevel \#0 { set false 0 }
3259 # Return the compiler_info string if no arg is provided.
3260 # Otherwise the argument is a glob-style expression to match against
3263 proc test_compiler_info { {compiler ""} } {
3264 global compiler_info
3267 # If no arg, return the compiler_info string.
3268 if [string match "" $compiler] {
3269 return $compiler_info
3272 return [string match $compiler $compiler_info]
3275 proc current_target_name { } {
3277 if [info exists target_info(target,name)] {
3278 set answer $target_info(target,name)
3285 set gdb_wrapper_initialized 0
3286 set gdb_wrapper_target ""
3288 proc gdb_wrapper_init { args } {
3289 global gdb_wrapper_initialized
3290 global gdb_wrapper_file
3291 global gdb_wrapper_flags
3292 global gdb_wrapper_target
3294 if { $gdb_wrapper_initialized == 1 } { return; }
3296 if {[target_info exists needs_status_wrapper] && \
3297 [target_info needs_status_wrapper] != "0"} {
3298 set result [build_wrapper "testglue.o"]
3299 if { $result != "" } {
3300 set gdb_wrapper_file [lindex $result 0]
3301 set gdb_wrapper_flags [lindex $result 1]
3303 warning "Status wrapper failed to build."
3306 set gdb_wrapper_initialized 1
3307 set gdb_wrapper_target [current_target_name]
3310 # Some targets need to always link a special object in. Save its path here.
3311 global gdb_saved_set_unbuffered_mode_obj
3312 set gdb_saved_set_unbuffered_mode_obj ""
3314 # Compile source files specified by SOURCE into a binary of type TYPE at path
3315 # DEST. gdb_compile is implemented using DejaGnu's target_compile, so the type
3316 # parameter and most options are passed directly to it.
3318 # The type can be one of the following:
3320 # - object: Compile into an object file.
3321 # - executable: Compile and link into an executable.
3322 # - preprocess: Preprocess the source files.
3323 # - assembly: Generate assembly listing.
3325 # The following options are understood and processed by gdb_compile:
3327 # - shlib=so_path: Add SO_PATH to the sources, and enable some target-specific
3328 # quirks to be able to use shared libraries.
3329 # - shlib_load: Link with appropriate libraries to allow the test to
3330 # dynamically load libraries at runtime. For example, on Linux, this adds
3331 # -ldl so that the test can use dlopen.
3332 # - nowarnings: Inhibit all compiler warnings.
3334 # And here are some of the not too obscure options understood by DejaGnu that
3335 # influence the compilation:
3337 # - additional_flags=flag: Add FLAG to the compiler flags.
3338 # - libs=library: Add LIBRARY to the libraries passed to the linker. The
3339 # argument can be a file, in which case it's added to the sources, or a
3341 # - ldflags=flag: Add FLAG to the linker flags.
3342 # - incdir=path: Add PATH to the searched include directories.
3343 # - libdir=path: Add PATH to the linker searched directories.
3344 # - ada, c++, f77: Compile the file as Ada, C++ or Fortran.
3345 # - debug: Build with debug information.
3346 # - optimize: Build with optimization.
3348 proc gdb_compile {source dest type options} {
3349 global GDB_TESTCASE_OPTIONS
3350 global gdb_wrapper_file
3351 global gdb_wrapper_flags
3352 global gdb_wrapper_initialized
3355 global gdb_saved_set_unbuffered_mode_obj
3357 set outdir [file dirname $dest]
3359 # Add platform-specific options if a shared library was specified using
3360 # "shlib=librarypath" in OPTIONS.
3364 foreach opt $options {
3365 if [regexp {^shlib=(.*)} $opt dummy_var shlib_name] {
3366 if [test_compiler_info "xlc-*"] {
3367 # IBM xlc compiler doesn't accept shared library named other
3368 # than .so: use "-Wl," to bypass this
3369 lappend source "-Wl,$shlib_name"
3370 } elseif { ([istarget "*-*-mingw*"]
3371 || [istarget *-*-cygwin*]
3372 || [istarget *-*-pe*])} {
3373 lappend source "${shlib_name}.a"
3375 lappend source $shlib_name
3377 if { $shlib_found == 0 } {
3379 if { ([istarget "*-*-mingw*"]
3380 || [istarget *-*-cygwin*]) } {
3381 lappend new_options "additional_flags=-Wl,--enable-auto-import"
3383 if { [test_compiler_info "gcc-*"] || [test_compiler_info "clang-*"] } {
3384 # Undo debian's change in the default.
3385 # Put it at the front to not override any user-provided
3386 # value, and to make sure it appears in front of all the
3388 lappend new_options "early_flags=-Wl,--no-as-needed"
3391 } elseif { $opt == "shlib_load" } {
3394 lappend new_options $opt
3398 # Because we link with libraries using their basename, we may need
3399 # (depending on the platform) to set a special rpath value, to allow
3400 # the executable to find the libraries it depends on.
3401 if { $shlib_load || $shlib_found } {
3402 if { ([istarget "*-*-mingw*"]
3403 || [istarget *-*-cygwin*]
3404 || [istarget *-*-pe*]) } {
3405 # Do not need anything.
3406 } elseif { [istarget *-*-freebsd*] || [istarget *-*-openbsd*] } {
3407 lappend new_options "ldflags=-Wl,-rpath,${outdir}"
3408 } elseif { [istarget arm*-*-symbianelf*] } {
3409 if { $shlib_load } {
3410 lappend new_options "libs=-ldl"
3413 if { $shlib_load } {
3414 lappend new_options "libs=-ldl"
3416 lappend new_options "ldflags=-Wl,-rpath,\\\$ORIGIN"
3419 set options $new_options
3421 if [info exists GDB_TESTCASE_OPTIONS] {
3422 lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"
3424 verbose "options are $options"
3425 verbose "source is $source $dest $type $options"
3427 if { $gdb_wrapper_initialized == 0 } { gdb_wrapper_init }
3429 if {[target_info exists needs_status_wrapper] && \
3430 [target_info needs_status_wrapper] != "0" && \
3431 [info exists gdb_wrapper_file]} {
3432 lappend options "libs=${gdb_wrapper_file}"
3433 lappend options "ldflags=${gdb_wrapper_flags}"
3436 # Replace the "nowarnings" option with the appropriate additional_flags
3437 # to disable compiler warnings.
3438 set nowarnings [lsearch -exact $options nowarnings]
3439 if {$nowarnings != -1} {
3440 if [target_info exists gdb,nowarnings_flag] {
3441 set flag "additional_flags=[target_info gdb,nowarnings_flag]"
3443 set flag "additional_flags=-w"
3445 set options [lreplace $options $nowarnings $nowarnings $flag]
3448 if { $type == "executable" } {
3449 if { ([istarget "*-*-mingw*"]
3450 || [istarget "*-*-*djgpp"]
3451 || [istarget "*-*-cygwin*"])} {
3452 # Force output to unbuffered mode, by linking in an object file
3453 # with a global contructor that calls setvbuf.
3455 # Compile the special object seperatelly for two reasons:
3456 # 1) Insulate it from $options.
3457 # 2) Avoid compiling it for every gdb_compile invocation,
3458 # which is time consuming, especially if we're remote
3461 if { $gdb_saved_set_unbuffered_mode_obj == "" } {
3462 verbose "compiling gdb_saved_set_unbuffered_obj"
3463 set unbuf_src ${srcdir}/lib/set_unbuffered_mode.c
3464 set unbuf_obj ${objdir}/set_unbuffered_mode.o
3466 set result [gdb_compile "${unbuf_src}" "${unbuf_obj}" object {nowarnings}]
3467 if { $result != "" } {
3470 if {[is_remote host]} {
3471 set gdb_saved_set_unbuffered_mode_obj set_unbuffered_mode_saved.o
3473 set gdb_saved_set_unbuffered_mode_obj ${objdir}/set_unbuffered_mode_saved.o
3475 # Link a copy of the output object, because the
3476 # original may be automatically deleted.
3477 remote_download host $unbuf_obj $gdb_saved_set_unbuffered_mode_obj
3479 verbose "gdb_saved_set_unbuffered_obj already compiled"
3482 # Rely on the internal knowledge that the global ctors are ran in
3483 # reverse link order. In that case, we can use ldflags to
3484 # avoid copying the object file to the host multiple
3486 # This object can only be added if standard libraries are
3487 # used. Thus, we need to disable it if -nostdlib option is used
3488 if {[lsearch -regexp $options "-nostdlib"] < 0 } {
3489 lappend options "ldflags=$gdb_saved_set_unbuffered_mode_obj"
3494 set result [target_compile $source $dest $type $options]
3496 # Prune uninteresting compiler (and linker) output.
3497 regsub "Creating library file: \[^\r\n\]*\[\r\n\]+" $result "" result
3499 regsub "\[\r\n\]*$" "$result" "" result
3500 regsub "^\[\r\n\]*" "$result" "" result
3502 if {[lsearch $options quiet] < 0} {
3503 # We shall update this on a per language basis, to avoid
3504 # changing the entire testsuite in one go.
3505 if {[lsearch $options f77] >= 0} {
3506 gdb_compile_test $source $result
3507 } elseif { $result != "" } {
3508 clone_output "gdb compile failed, $result"
3515 # This is just like gdb_compile, above, except that it tries compiling
3516 # against several different thread libraries, to see which one this
3518 proc gdb_compile_pthreads {source dest type options} {
3520 set why_msg "unrecognized error"
3521 foreach lib {-lpthreads -lpthread -lthread ""} {
3522 # This kind of wipes out whatever libs the caller may have
3523 # set. Or maybe theirs will override ours. How infelicitous.
3524 set options_with_lib [concat $options [list libs=$lib quiet]]
3525 set ccout [gdb_compile $source $dest $type $options_with_lib]
3526 switch -regexp -- $ccout {
3527 ".*no posix threads support.*" {
3528 set why_msg "missing threads include file"
3531 ".*cannot open -lpthread.*" {
3532 set why_msg "missing runtime threads library"
3534 ".*Can't find library for -lpthread.*" {
3535 set why_msg "missing runtime threads library"
3538 pass "successfully compiled posix threads test case"
3544 if {!$built_binfile} {
3545 unsupported "Couldn't compile [file tail $source]: ${why_msg}"
3550 # Build a shared library from SOURCES.
3552 proc gdb_compile_shlib {sources dest options} {
3553 set obj_options $options
3556 if { [lsearch -exact $options "c++"] >= 0 } {
3557 set info_options "c++"
3559 if [get_compiler_info ${info_options}] {
3563 switch -glob [test_compiler_info] {
3565 lappend obj_options "additional_flags=-qpic"
3568 if { !([istarget "*-*-cygwin*"]
3569 || [istarget "*-*-mingw*"]) } {
3570 lappend obj_options "additional_flags=-fpic"
3574 if { !([istarget "powerpc*-*-aix*"]
3575 || [istarget "rs6000*-*-aix*"]
3576 || [istarget "*-*-cygwin*"]
3577 || [istarget "*-*-mingw*"]
3578 || [istarget "*-*-pe*"]) } {
3579 lappend obj_options "additional_flags=-fpic"
3583 lappend obj_options "additional_flags=-fpic"
3586 # don't know what the compiler is...
3590 set outdir [file dirname $dest]
3592 foreach source $sources {
3593 set sourcebase [file tail $source]
3594 if {[gdb_compile $source "${outdir}/${sourcebase}.o" object $obj_options] != ""} {
3597 lappend objects ${outdir}/${sourcebase}.o
3600 set link_options $options
3601 if [test_compiler_info "xlc-*"] {
3602 lappend link_options "additional_flags=-qmkshrobj"
3604 lappend link_options "additional_flags=-shared"
3606 if { ([istarget "*-*-mingw*"]
3607 || [istarget *-*-cygwin*]
3608 || [istarget *-*-pe*]) } {
3609 if { [is_remote host] } {
3610 set name [file tail ${dest}]
3614 lappend link_options "additional_flags=-Wl,--out-implib,${name}.a"
3616 # Set the soname of the library. This causes the linker on ELF
3617 # systems to create the DT_NEEDED entry in the executable referring
3618 # to the soname of the library, and not its absolute path. This
3619 # (using the absolute path) would be problem when testing on a
3622 # In conjunction with setting the soname, we add the special
3623 # rpath=$ORIGIN value when building the executable, so that it's
3624 # able to find the library in its own directory.
3625 set destbase [file tail $dest]
3626 lappend link_options "additional_flags=-Wl,-soname,$destbase"
3629 if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} {
3632 if { [is_remote host]
3633 && ([istarget "*-*-mingw*"]
3634 || [istarget *-*-cygwin*]
3635 || [istarget *-*-pe*]) } {
3636 set dest_tail_name [file tail ${dest}]
3637 remote_upload host $dest_tail_name.a ${dest}.a
3638 remote_file host delete $dest_tail_name.a
3644 # This is just like gdb_compile_shlib, above, except that it tries compiling
3645 # against several different thread libraries, to see which one this
3647 proc gdb_compile_shlib_pthreads {sources dest options} {
3649 set why_msg "unrecognized error"
3650 foreach lib {-lpthreads -lpthread -lthread ""} {
3651 # This kind of wipes out whatever libs the caller may have
3652 # set. Or maybe theirs will override ours. How infelicitous.
3653 set options_with_lib [concat $options [list libs=$lib quiet]]
3654 set ccout [gdb_compile_shlib $sources $dest $options_with_lib]
3655 switch -regexp -- $ccout {
3656 ".*no posix threads support.*" {
3657 set why_msg "missing threads include file"
3660 ".*cannot open -lpthread.*" {
3661 set why_msg "missing runtime threads library"
3663 ".*Can't find library for -lpthread.*" {
3664 set why_msg "missing runtime threads library"
3667 pass "successfully compiled posix threads test case"
3673 if {!$built_binfile} {
3674 unsupported "Couldn't compile $sources: ${why_msg}"
3679 # This is just like gdb_compile_pthreads, above, except that we always add the
3680 # objc library for compiling Objective-C programs
3681 proc gdb_compile_objc {source dest type options} {
3683 set why_msg "unrecognized error"
3684 foreach lib {-lobjc -lpthreads -lpthread -lthread solaris} {
3685 # This kind of wipes out whatever libs the caller may have
3686 # set. Or maybe theirs will override ours. How infelicitous.
3687 if { $lib == "solaris" } {
3688 set lib "-lpthread -lposix4"
3690 if { $lib != "-lobjc" } {
3691 set lib "-lobjc $lib"
3693 set options_with_lib [concat $options [list libs=$lib quiet]]
3694 set ccout [gdb_compile $source $dest $type $options_with_lib]
3695 switch -regexp -- $ccout {
3696 ".*no posix threads support.*" {
3697 set why_msg "missing threads include file"
3700 ".*cannot open -lpthread.*" {
3701 set why_msg "missing runtime threads library"
3703 ".*Can't find library for -lpthread.*" {
3704 set why_msg "missing runtime threads library"
3707 pass "successfully compiled objc with posix threads test case"
3713 if {!$built_binfile} {
3714 unsupported "Couldn't compile [file tail $source]: ${why_msg}"
3719 proc send_gdb { string } {
3720 global suppress_flag
3721 if { $suppress_flag } {
3724 return [remote_send host "$string"]
3727 # Send STRING to the inferior's terminal.
3729 proc send_inferior { string } {
3730 global inferior_spawn_id
3732 if {[catch "send -i $inferior_spawn_id -- \$string" errorInfo]} {
3742 proc gdb_expect { args } {
3743 if { [llength $args] == 2 && [lindex $args 0] != "-re" } {
3744 set atimeout [lindex $args 0]
3745 set expcode [list [lindex $args 1]]
3750 # A timeout argument takes precedence, otherwise of all the timeouts
3751 # select the largest.
3752 if [info exists atimeout] {
3755 set tmt [get_largest_timeout]
3758 global suppress_flag
3759 global remote_suppress_flag
3760 if [info exists remote_suppress_flag] {
3761 set old_val $remote_suppress_flag
3763 if [info exists suppress_flag] {
3764 if { $suppress_flag } {
3765 set remote_suppress_flag 1
3769 {uplevel remote_expect host $tmt $expcode} string]
3770 if [info exists old_val] {
3771 set remote_suppress_flag $old_val
3773 if [info exists remote_suppress_flag] {
3774 unset remote_suppress_flag
3779 global errorInfo errorCode
3781 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
3783 return -code $code $string
3787 # gdb_expect_list TEST SENTINEL LIST -- expect a sequence of outputs
3789 # Check for long sequence of output by parts.
3790 # TEST: is the test message to be printed with the test success/fail.
3791 # SENTINEL: Is the terminal pattern indicating that output has finished.
3792 # LIST: is the sequence of outputs to match.
3793 # If the sentinel is recognized early, it is considered an error.
3796 # 1 if the test failed,
3797 # 0 if the test passes,
3798 # -1 if there was an internal error.
3800 proc gdb_expect_list {test sentinel list} {
3802 global suppress_flag
3805 if { $suppress_flag } {
3807 unresolved "${test}"
3809 while { ${index} < [llength ${list}] } {
3810 set pattern [lindex ${list} ${index}]
3811 set index [expr ${index} + 1]
3812 verbose -log "gdb_expect_list pattern: /$pattern/" 2
3813 if { ${index} == [llength ${list}] } {
3816 -re "${pattern}${sentinel}" {
3817 # pass "${test}, pattern ${index} + sentinel"
3820 fail "${test} (pattern ${index} + sentinel)"
3823 -re ".*A problem internal to GDB has been detected" {
3824 fail "${test} (GDB internal error)"
3826 gdb_internal_error_resync
3829 fail "${test} (pattern ${index} + sentinel) (timeout)"
3834 # unresolved "${test}, pattern ${index} + sentinel"
3840 # pass "${test}, pattern ${index}"
3843 fail "${test} (pattern ${index})"
3846 -re ".*A problem internal to GDB has been detected" {
3847 fail "${test} (GDB internal error)"
3849 gdb_internal_error_resync
3852 fail "${test} (pattern ${index}) (timeout)"
3857 # unresolved "${test}, pattern ${index}"
3871 proc gdb_suppress_entire_file { reason } {
3872 global suppress_flag
3875 set suppress_flag -1
3879 # Set suppress_flag, which will cause all subsequent calls to send_gdb and
3880 # gdb_expect to fail immediately (until the next call to
3881 # gdb_stop_suppressing_tests).
3883 proc gdb_suppress_tests { args } {
3884 global suppress_flag
3886 return; # fnf - disable pending review of results where
3887 # testsuite ran better without this
3890 if { $suppress_flag == 1 } {
3891 if { [llength $args] > 0 } {
3892 warning "[lindex $args 0]\n"
3894 warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n"
3900 # Clear suppress_flag.
3902 proc gdb_stop_suppressing_tests { } {
3903 global suppress_flag
3905 if [info exists suppress_flag] {
3906 if { $suppress_flag > 0 } {
3908 clone_output "Tests restarted.\n"
3915 proc gdb_clear_suppressed { } {
3916 global suppress_flag
3921 # Spawn the gdb process.
3923 # This doesn't expect any output or do any other initialization,
3924 # leaving those to the caller.
3926 # Overridable function -- you can override this function in your
3929 proc gdb_spawn { } {
3933 # Spawn GDB with CMDLINE_FLAGS appended to the GDBFLAGS global.
3935 proc gdb_spawn_with_cmdline_opts { cmdline_flags } {
3938 set saved_gdbflags $GDBFLAGS
3940 if {$GDBFLAGS != ""} {
3943 append GDBFLAGS $cmdline_flags
3947 set GDBFLAGS $saved_gdbflags
3952 # Start gdb running, wait for prompt, and disable the pagers.
3954 # Overridable function -- you can override this function in your
3957 proc gdb_start { } {
3962 catch default_gdb_exit
3965 # Return true if we can spawn a program on the target and attach to
3968 proc can_spawn_for_attach { } {
3969 # We use exp_pid to get the inferior's pid, assuming that gives
3970 # back the pid of the program. On remote boards, that would give
3971 # us instead the PID of e.g., the ssh client, etc.
3972 if [is_remote target] then {
3976 # The "attach" command doesn't make sense when the target is
3977 # stub-like, where GDB finds the program already started on
3978 # initial connection.
3979 if {[target_info exists use_gdb_stub]} {
3987 # Kill a progress previously started with spawn_wait_for_attach, and
3988 # reap its wait status. PROC_SPAWN_ID is the spawn id associated with
3991 proc kill_wait_spawned_process { proc_spawn_id } {
3992 set pid [exp_pid -i $proc_spawn_id]
3994 verbose -log "killing ${pid}"
3995 remote_exec build "kill -9 ${pid}"
3997 verbose -log "closing ${proc_spawn_id}"
3998 catch "close -i $proc_spawn_id"
3999 verbose -log "waiting for ${proc_spawn_id}"
4001 # If somehow GDB ends up still attached to the process here, a
4002 # blocking wait hangs until gdb is killed (or until gdb / the
4003 # ptracer reaps the exit status too, but that won't happen because
4004 # something went wrong.) Passing -nowait makes expect tell Tcl to
4005 # wait for the PID in the background. That's fine because we
4006 # don't care about the exit status. */
4007 wait -nowait -i $proc_spawn_id
4010 # Returns the process id corresponding to the given spawn id.
4012 proc spawn_id_get_pid { spawn_id } {
4013 set testpid [exp_pid -i $spawn_id]
4015 if { [istarget "*-*-cygwin*"] } {
4016 # testpid is the Cygwin PID, GDB uses the Windows PID, which
4017 # might be different due to the way fork/exec works.
4018 set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
4024 # Start a set of programs running and then wait for a bit, to be sure
4025 # that they can be attached to. Return a list of processes spawn IDs,
4026 # one element for each process spawned. It's a test error to call
4027 # this when [can_spawn_for_attach] is false.
4029 proc spawn_wait_for_attach { executable_list } {
4030 set spawn_id_list {}
4032 if ![can_spawn_for_attach] {
4033 # The caller should have checked can_spawn_for_attach itself
4034 # before getting here.
4035 error "can't spawn for attach with this target/board"
4038 foreach {executable} $executable_list {
4039 # Note we use Expect's spawn, not Tcl's exec, because with
4040 # spawn we control when to wait for/reap the process. That
4041 # allows killing the process by PID without being subject to
4043 lappend spawn_id_list [remote_spawn target $executable]
4048 return $spawn_id_list
4052 # gdb_load_cmd -- load a file into the debugger.
4053 # ARGS - additional args to load command.
4054 # return a -1 if anything goes wrong.
4056 proc gdb_load_cmd { args } {
4059 if [target_info exists gdb_load_timeout] {
4060 set loadtimeout [target_info gdb_load_timeout]
4062 set loadtimeout 1600
4064 send_gdb "load $args\n"
4065 verbose "Timeout is now $loadtimeout seconds" 2
4066 gdb_expect $loadtimeout {
4067 -re "Loading section\[^\r\]*\r\n" {
4070 -re "Start address\[\r\]*\r\n" {
4073 -re "Transfer rate\[\r\]*\r\n" {
4076 -re "Memory access error\[^\r\]*\r\n" {
4077 perror "Failed to load program"
4080 -re "$gdb_prompt $" {
4083 -re "(.*)\r\n$gdb_prompt " {
4084 perror "Unexpected reponse from 'load' -- $expect_out(1,string)"
4088 perror "Timed out trying to load $args."
4095 # Invoke "gcore". CORE is the name of the core file to write. TEST
4096 # is the name of the test case. This will return 1 if the core file
4097 # was created, 0 otherwise. If this fails to make a core file because
4098 # this configuration of gdb does not support making core files, it
4099 # will call "unsupported", not "fail". However, if this fails to make
4100 # a core file for some other reason, then it will call "fail".
4102 proc gdb_gcore_cmd {core test} {
4106 gdb_test_multiple "gcore $core" $test {
4107 -re "Saved corefile .*\[\r\n\]+$gdb_prompt $" {
4111 -re "(?:Can't create a corefile|Target does not support core file generation\\.)\[\r\n\]+$gdb_prompt $" {
4119 # Load core file CORE. TEST is the name of the test case.
4120 # This will record a pass/fail for loading the core file.
4122 # 1 - core file is successfully loaded
4123 # 0 - core file loaded but has a non fatal error
4124 # -1 - core file failed to load
4126 proc gdb_core_cmd { core test } {
4129 gdb_test_multiple "core $core" "$test" {
4130 -re "\\\[Thread debugging using \[^ \r\n\]* enabled\\\]\r\n" {
4133 -re " is not a core dump:.*\r\n$gdb_prompt $" {
4134 fail "$test (bad file format)"
4137 -re ": No such file or directory.*\r\n$gdb_prompt $" {
4138 fail "$test (file not found)"
4141 -re "Couldn't find .* registers in core file.*\r\n$gdb_prompt $" {
4142 fail "$test (incomplete note section)"
4145 -re "Core was generated by .*\r\n$gdb_prompt $" {
4149 -re ".*$gdb_prompt $" {
4154 fail "$test (timeout)"
4158 fail "unsupported output from 'core' command"
4162 # Return the filename to download to the target and load on the target
4163 # for this shared library. Normally just LIBNAME, unless shared libraries
4164 # for this target have separate link and load images.
4166 proc shlib_target_file { libname } {
4170 # Return the filename GDB will load symbols from when debugging this
4171 # shared library. Normally just LIBNAME, unless shared libraries for
4172 # this target have separate link and load images.
4174 proc shlib_symbol_file { libname } {
4178 # Return the filename to download to the target and load for this
4179 # executable. Normally just BINFILE unless it is renamed to something
4180 # else for this target.
4182 proc exec_target_file { binfile } {
4186 # Return the filename GDB will load symbols from when debugging this
4187 # executable. Normally just BINFILE unless executables for this target
4188 # have separate files for symbols.
4190 proc exec_symbol_file { binfile } {
4194 # Rename the executable file. Normally this is just BINFILE1 being renamed
4195 # to BINFILE2, but some targets require multiple binary files.
4196 proc gdb_rename_execfile { binfile1 binfile2 } {
4197 file rename -force [exec_target_file ${binfile1}] \
4198 [exec_target_file ${binfile2}]
4199 if { [exec_target_file ${binfile1}] != [exec_symbol_file ${binfile1}] } {
4200 file rename -force [exec_symbol_file ${binfile1}] \
4201 [exec_symbol_file ${binfile2}]
4205 # "Touch" the executable file to update the date. Normally this is just
4206 # BINFILE, but some targets require multiple files.
4207 proc gdb_touch_execfile { binfile } {
4208 set time [clock seconds]
4209 file mtime [exec_target_file ${binfile}] $time
4210 if { [exec_target_file ${binfile}] != [exec_symbol_file ${binfile}] } {
4211 file mtime [exec_symbol_file ${binfile}] $time
4215 # Like remote_download but provides a gdb-specific behavior.
4217 # If the destination board is remote, the local file FROMFILE is transferred as
4218 # usual with remote_download to TOFILE on the remote board. The destination
4219 # filename is added to the CLEANFILES global, so it can be cleaned up at the
4222 # If the destination board is local, the destination path TOFILE is passed
4223 # through standard_output_file, and FROMFILE is copied there.
4225 # In both cases, if TOFILE is omitted, it defaults to the [file tail] of
4228 proc gdb_remote_download {dest fromfile {tofile {}}} {
4229 # If TOFILE is not given, default to the same filename as FROMFILE.
4230 if {[string length $tofile] == 0} {
4231 set tofile [file tail $fromfile]
4234 if {[is_remote $dest]} {
4235 # When the DEST is remote, we simply send the file to DEST.
4238 set destname [remote_download $dest $fromfile $tofile]
4239 lappend cleanfiles $destname
4243 # When the DEST is local, we copy the file to the test directory (where
4244 # the executable is).
4246 # Note that we pass TOFILE through standard_output_file, regardless of
4247 # whether it is absolute or relative, because we don't want the tests
4248 # to be able to write outside their standard output directory.
4250 set tofile [standard_output_file $tofile]
4252 file copy -force $fromfile $tofile
4258 # gdb_load_shlib LIB...
4260 # Copy the listed library to the target.
4262 proc gdb_load_shlib { file } {
4263 set dest [gdb_remote_download target [shlib_target_file $file]]
4265 if {[is_remote target]} {
4266 # If the target is remote, we need to tell gdb where to find the
4269 # We could set this even when not testing remotely, but a user
4270 # generally won't set it unless necessary. In order to make the tests
4271 # more like the real-life scenarios, we don't set it for local testing.
4272 gdb_test "set solib-search-path [file dirname $file]" "" ""
4279 # gdb_load -- load a file into the debugger. Specifying no file
4280 # defaults to the executable currently being debugged.
4281 # The return value is 0 for success, -1 for failure.
4282 # Many files in config/*.exp override this procedure.
4284 proc gdb_load { arg } {
4286 return [gdb_file_cmd $arg]
4291 # gdb_reload -- load a file into the target. Called before "running",
4292 # either the first time or after already starting the program once,
4293 # for remote targets. Most files that override gdb_load should now
4294 # override this instead.
4296 proc gdb_reload { } {
4297 # For the benefit of existing configurations, default to gdb_load.
4298 # Specifying no file defaults to the executable currently being
4300 return [gdb_load ""]
4303 proc gdb_continue { function } {
4306 return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]
4309 proc default_gdb_init { test_file_name } {
4310 global gdb_wrapper_initialized
4311 global gdb_wrapper_target
4312 global gdb_test_file_name
4318 gdb_clear_suppressed
4320 set gdb_test_file_name [file rootname [file tail $test_file_name]]
4322 # Make sure that the wrapper is rebuilt
4323 # with the appropriate multilib option.
4324 if { $gdb_wrapper_target != [current_target_name] } {
4325 set gdb_wrapper_initialized 0
4328 # Unlike most tests, we have a small number of tests that generate
4329 # a very large amount of output. We therefore increase the expect
4330 # buffer size to be able to contain the entire test output. This
4331 # is especially needed by gdb.base/info-macros.exp.
4333 # Also set this value for the currently running GDB.
4334 match_max [match_max -d]
4336 # We want to add the name of the TCL testcase to the PASS/FAIL messages.
4337 set pf_prefix "[file tail [file dirname $test_file_name]]/[file tail $test_file_name]:"
4340 if [target_info exists gdb_prompt] {
4341 set gdb_prompt [target_info gdb_prompt]
4343 set gdb_prompt "\\(gdb\\)"
4346 if [info exists use_gdb_stub] {
4351 # Return a path using GDB_PARALLEL.
4352 # ARGS is a list of path elements to append to "$objdir/$GDB_PARALLEL".
4353 # GDB_PARALLEL must be defined, the caller must check.
4355 # The default value for GDB_PARALLEL is, canonically, ".".
4356 # The catch is that tests don't expect an additional "./" in file paths so
4357 # omit any directory for the default case.
4358 # GDB_PARALLEL is written as "yes" for the default case in Makefile.in to mark
4359 # its special handling.
4361 proc make_gdb_parallel_path { args } {
4362 global GDB_PARALLEL objdir
4363 set joiner [list "file" "join" $objdir]
4364 if { [info exists GDB_PARALLEL] && $GDB_PARALLEL != "yes" } {
4365 lappend joiner $GDB_PARALLEL
4367 set joiner [concat $joiner $args]
4368 return [eval $joiner]
4371 # Turn BASENAME into a full file name in the standard output
4372 # directory. It is ok if BASENAME is the empty string; in this case
4373 # the directory is returned.
4375 proc standard_output_file {basename} {
4376 global objdir subdir gdb_test_file_name
4378 set dir [make_gdb_parallel_path outputs $subdir $gdb_test_file_name]
4380 return [file join $dir $basename]
4383 # Return the name of a file in our standard temporary directory.
4385 proc standard_temp_file {basename} {
4386 # Since a particular runtest invocation is only executing a single test
4387 # file at any given time, we can use the runtest pid to build the
4388 # path of the temp directory.
4389 set dir [make_gdb_parallel_path temp [pid]]
4391 return [file join $dir $basename]
4394 # Set 'testfile', 'srcfile', and 'binfile'.
4396 # ARGS is a list of source file specifications.
4397 # Without any arguments, the .exp file's base name is used to
4398 # compute the source file name. The ".c" extension is added in this case.
4399 # If ARGS is not empty, each entry is a source file specification.
4400 # If the specification starts with a ".", it is treated as a suffix
4401 # to append to the .exp file's base name.
4402 # If the specification is the empty string, it is treated as if it
4404 # Otherwise it is a file name.
4405 # The first file in the list is used to set the 'srcfile' global.
4406 # Each subsequent name is used to set 'srcfile2', 'srcfile3', etc.
4408 # Most tests should call this without arguments.
4410 # If a completely different binary file name is needed, then it
4411 # should be handled in the .exp file with a suitable comment.
4413 proc standard_testfile {args} {
4414 global gdb_test_file_name
4416 global gdb_test_file_last_vars
4419 global testfile binfile
4421 set testfile $gdb_test_file_name
4422 set binfile [standard_output_file ${testfile}]
4424 if {[llength $args] == 0} {
4428 # Unset our previous output variables.
4429 # This can help catch hidden bugs.
4430 if {[info exists gdb_test_file_last_vars]} {
4431 foreach varname $gdb_test_file_last_vars {
4433 catch {unset $varname}
4436 # 'executable' is often set by tests.
4437 set gdb_test_file_last_vars {executable}
4441 set varname srcfile$suffix
4444 # Handle an extension.
4447 } elseif {[string range $arg 0 0] == "."} {
4448 set arg $testfile$arg
4452 lappend gdb_test_file_last_vars $varname
4454 if {$suffix == ""} {
4462 # The default timeout used when testing GDB commands. We want to use
4463 # the same timeout as the default dejagnu timeout, unless the user has
4464 # already provided a specific value (probably through a site.exp file).
4465 global gdb_test_timeout
4466 if ![info exists gdb_test_timeout] {
4467 set gdb_test_timeout $timeout
4470 # A list of global variables that GDB testcases should not use.
4471 # We try to prevent their use by monitoring write accesses and raising
4472 # an error when that happens.
4473 set banned_variables { bug_id prms_id }
4475 # A list of procedures that GDB testcases should not use.
4476 # We try to prevent their use by monitoring invocations and raising
4477 # an error when that happens.
4478 set banned_procedures { strace }
4480 # gdb_init is called by runtest at start, but also by several
4481 # tests directly; gdb_finish is only called from within runtest after
4482 # each test source execution.
4483 # Placing several traces by repetitive calls to gdb_init leads
4484 # to problems, as only one trace is removed in gdb_finish.
4485 # To overcome this possible problem, we add a variable that records
4486 # if the banned variables and procedures are already traced.
4489 proc gdb_init { test_file_name } {
4490 # Reset the timeout value to the default. This way, any testcase
4491 # that changes the timeout value without resetting it cannot affect
4492 # the timeout used in subsequent testcases.
4493 global gdb_test_timeout
4495 set timeout $gdb_test_timeout
4497 if { [regexp ".*gdb\.reverse\/.*" $test_file_name]
4498 && [target_info exists gdb_reverse_timeout] } {
4499 set timeout [target_info gdb_reverse_timeout]
4502 # If GDB_INOTIFY is given, check for writes to '.'. This is a
4503 # debugging tool to help confirm that the test suite is
4504 # parallel-safe. You need "inotifywait" from the
4505 # inotify-tools package to use this.
4506 global GDB_INOTIFY inotify_pid
4507 if {[info exists GDB_INOTIFY] && ![info exists inotify_pid]} {
4508 global outdir tool inotify_log_file
4510 set exclusions {outputs temp gdb[.](log|sum) cache}
4511 set exclusion_re ([join $exclusions |])
4513 set inotify_log_file [standard_temp_file inotify.out]
4514 set inotify_pid [exec inotifywait -r -m -e move,create,delete . \
4515 --exclude $exclusion_re \
4516 |& tee -a $outdir/$tool.log $inotify_log_file &]
4518 # Wait for the watches; hopefully this is long enough.
4521 # Clear the log so that we don't emit a warning the first time
4523 set fd [open $inotify_log_file w]
4527 # Block writes to all banned variables, and invocation of all
4528 # banned procedures...
4529 global banned_variables
4530 global banned_procedures
4531 global banned_traced
4532 if (!$banned_traced) {
4533 foreach banned_var $banned_variables {
4534 global "$banned_var"
4535 trace add variable "$banned_var" write error
4537 foreach banned_proc $banned_procedures {
4538 global "$banned_proc"
4539 trace add execution "$banned_proc" enter error
4544 # We set LC_ALL, LC_CTYPE, and LANG to C so that we get the same
4545 # messages as expected.
4550 # Don't let a .inputrc file or an existing setting of INPUTRC mess up
4551 # the test results. Even if /dev/null doesn't exist on the particular
4552 # platform, the readline library will use the default setting just by
4553 # failing to open the file. OTOH, opening /dev/null successfully will
4554 # also result in the default settings being used since nothing will be
4555 # read from this file.
4556 setenv INPUTRC "/dev/null"
4558 # The gdb.base/readline.exp arrow key test relies on the standard VT100
4559 # bindings, so make sure that an appropriate terminal is selected.
4560 # The same bug doesn't show up if we use ^P / ^N instead.
4563 # Some tests (for example gdb.base/maint.exp) shell out from gdb to use
4564 # grep. Clear GREP_OPTIONS to make the behavior predictable,
4565 # especially having color output turned on can cause tests to fail.
4566 setenv GREP_OPTIONS ""
4568 # Clear $gdbserver_reconnect_p.
4569 global gdbserver_reconnect_p
4570 set gdbserver_reconnect_p 1
4571 unset gdbserver_reconnect_p
4573 return [default_gdb_init $test_file_name]
4576 proc gdb_finish { } {
4577 global gdbserver_reconnect_p
4581 # Exit first, so that the files are no longer in use.
4584 if { [llength $cleanfiles] > 0 } {
4585 eval remote_file target delete $cleanfiles
4589 # Unblock write access to the banned variables. Dejagnu typically
4590 # resets some of them between testcases.
4591 global banned_variables
4592 global banned_procedures
4593 global banned_traced
4594 if ($banned_traced) {
4595 foreach banned_var $banned_variables {
4596 global "$banned_var"
4597 trace remove variable "$banned_var" write error
4599 foreach banned_proc $banned_procedures {
4600 global "$banned_proc"
4601 trace remove execution "$banned_proc" enter error
4608 set debug_format "unknown"
4610 # Run the gdb command "info source" and extract the debugging format
4611 # information from the output and save it in debug_format.
4613 proc get_debug_format { } {
4619 set debug_format "unknown"
4620 send_gdb "info source\n"
4622 -re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" {
4623 set debug_format $expect_out(1,string)
4624 verbose "debug format is $debug_format"
4627 -re "No current source file.\r\n$gdb_prompt $" {
4628 perror "get_debug_format used when no current source file"
4631 -re "$gdb_prompt $" {
4632 warning "couldn't check debug format (no valid response)."
4636 warning "couldn't check debug format (timeout)."
4642 # Return true if FORMAT matches the debug format the current test was
4643 # compiled with. FORMAT is a shell-style globbing pattern; it can use
4644 # `*', `[...]', and so on.
4646 # This function depends on variables set by `get_debug_format', above.
4648 proc test_debug_format {format} {
4651 return [expr [string match $format $debug_format] != 0]
4654 # Like setup_xfail, but takes the name of a debug format (DWARF 1,
4655 # COFF, stabs, etc). If that format matches the format that the
4656 # current test was compiled with, then the next test is expected to
4657 # fail for any target. Returns 1 if the next test or set of tests is
4658 # expected to fail, 0 otherwise (or if it is unknown). Must have
4659 # previously called get_debug_format.
4660 proc setup_xfail_format { format } {
4661 set ret [test_debug_format $format]
4669 # gdb_get_line_number TEXT [FILE]
4671 # Search the source file FILE, and return the line number of the
4672 # first line containing TEXT. If no match is found, an error is thrown.
4674 # TEXT is a string literal, not a regular expression.
4676 # The default value of FILE is "$srcdir/$subdir/$srcfile". If FILE is
4677 # specified, and does not start with "/", then it is assumed to be in
4678 # "$srcdir/$subdir". This is awkward, and can be fixed in the future,
4679 # by changing the callers and the interface at the same time.
4680 # In particular: gdb.base/break.exp, gdb.base/condbreak.exp,
4681 # gdb.base/ena-dis-br.exp.
4683 # Use this function to keep your test scripts independent of the
4684 # exact line numbering of the source file. Don't write:
4686 # send_gdb "break 20"
4688 # This means that if anyone ever edits your test's source file,
4689 # your test could break. Instead, put a comment like this on the
4690 # source file line you want to break at:
4692 # /* breakpoint spot: frotz.exp: test name */
4694 # and then write, in your test script (which we assume is named
4697 # send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n"
4699 # (Yes, Tcl knows how to handle the nested quotes and brackets.
4702 # % puts "foo [lindex "bar baz" 1]"
4705 # Tcl is quite clever, for a little stringy language.)
4709 # The previous implementation of this procedure used the gdb search command.
4710 # This version is different:
4712 # . It works with MI, and it also works when gdb is not running.
4714 # . It operates on the build machine, not the host machine.
4716 # . For now, this implementation fakes a current directory of
4717 # $srcdir/$subdir to be compatible with the old implementation.
4718 # This will go away eventually and some callers will need to
4721 # . The TEXT argument is literal text and matches literally,
4722 # not a regular expression as it was before.
4724 # . State changes in gdb, such as changing the current file
4725 # and setting $_, no longer happen.
4727 # After a bit of time we can forget about the differences from the
4728 # old implementation.
4730 # --chastain 2004-08-05
4732 proc gdb_get_line_number { text { file "" } } {
4737 if { "$file" == "" } then {
4740 if { ! [regexp "^/" "$file"] } then {
4741 set file "$srcdir/$subdir/$file"
4744 if { [ catch { set fd [open "$file"] } message ] } then {
4749 for { set line 1 } { 1 } { incr line } {
4750 if { [ catch { set nchar [gets "$fd" body] } message ] } then {
4753 if { $nchar < 0 } then {
4756 if { [string first "$text" "$body"] >= 0 } then {
4762 if { [ catch { close "$fd" } message ] } then {
4767 error "undefined tag \"$text\""
4773 # Continue the program until it ends.
4775 # MSSG is the error message that gets printed. If not given, a
4777 # COMMAND is the command to invoke. If not given, "continue" is
4779 # ALLOW_EXTRA is a flag indicating whether the test should expect
4780 # extra output between the "Continuing." line and the program
4781 # exiting. By default it is zero; if nonzero, any extra output
4784 proc gdb_continue_to_end {{mssg ""} {command continue} {allow_extra 0}} {
4785 global inferior_exited_re use_gdb_stub
4788 set text "continue until exit"
4790 set text "continue until exit at $mssg"
4798 # By default, we don't rely on exit() behavior of remote stubs --
4799 # it's common for exit() to be implemented as a simple infinite
4800 # loop, or a forced crash/reset. For native targets, by default, we
4801 # assume process exit is reported as such. If a non-reliable target
4802 # is used, we set a breakpoint at exit, and continue to that.
4803 if { [target_info exists exit_is_reliable] } {
4804 set exit_is_reliable [target_info exit_is_reliable]
4806 set exit_is_reliable [expr ! $use_gdb_stub]
4809 if { ! $exit_is_reliable } {
4810 if {![gdb_breakpoint "exit"]} {
4813 gdb_test $command "Continuing..*Breakpoint .*exit.*" \
4816 # Continue until we exit. Should not stop again.
4817 # Don't bother to check the output of the program, that may be
4818 # extremely tough for some remote systems.
4820 "Continuing.\[\r\n0-9\]+${extra}(... EXIT code 0\[\r\n\]+|$inferior_exited_re normally).*"\
4825 proc rerun_to_main {} {
4826 global gdb_prompt use_gdb_stub
4831 -re ".*Breakpoint .*main .*$gdb_prompt $"\
4832 {pass "rerun to main" ; return 0}
4833 -re "$gdb_prompt $"\
4834 {fail "rerun to main" ; return 0}
4835 timeout {fail "(timeout) rerun to main" ; return 0}
4840 -re "The program .* has been started already.*y or n. $" {
4844 -re "Starting program.*$gdb_prompt $"\
4845 {pass "rerun to main" ; return 0}
4846 -re "$gdb_prompt $"\
4847 {fail "rerun to main" ; return 0}
4848 timeout {fail "(timeout) rerun to main" ; return 0}
4853 # Print a message and return true if a test should be skipped
4854 # due to lack of floating point suport.
4856 proc gdb_skip_float_test { msg } {
4857 if [target_info exists gdb,skip_float_tests] {
4858 verbose "Skipping test '$msg': no float tests."
4864 # Print a message and return true if a test should be skipped
4865 # due to lack of stdio support.
4867 proc gdb_skip_stdio_test { msg } {
4868 if [target_info exists gdb,noinferiorio] {
4869 verbose "Skipping test '$msg': no inferior i/o."
4875 proc gdb_skip_bogus_test { msg } {
4879 # Return true if a test should be skipped due to lack of XML support
4881 # NOTE: This must be called while gdb is *not* running.
4883 gdb_caching_proc gdb_skip_xml_test {
4887 set xml_file [gdb_remote_download host "${srcdir}/gdb.xml/trivial.xml"]
4891 gdb_test_multiple "set tdesc filename $xml_file" "" {
4892 -re ".*XML support was disabled at compile time.*$gdb_prompt $" {
4895 -re ".*$gdb_prompt $" { }
4901 # Return true if argv[0] is available.
4903 gdb_caching_proc gdb_has_argv0 {
4906 # Set up, compile, and execute a test program to check whether
4907 # argv[0] is available.
4908 set src [standard_temp_file has_argv0[pid].c]
4909 set exe [standard_temp_file has_argv0[pid].x]
4911 gdb_produce_source $src {
4912 int main (int argc, char **argv) {
4917 gdb_compile $src $exe executable {debug}
4920 proc gdb_has_argv0_1 { exe } {
4921 global srcdir subdir
4922 global gdb_prompt hex
4926 gdb_reinitialize_dir $srcdir/$subdir
4929 # Set breakpoint on main.
4930 gdb_test_multiple "break main" "break main" {
4931 -re "Breakpoint.*${gdb_prompt} $" {
4933 -re "${gdb_prompt} $" {
4940 gdb_test_multiple "" "run to main" {
4941 -re "Breakpoint.*${gdb_prompt} $" {
4943 -re "${gdb_prompt} $" {
4948 set old_elements "200"
4949 set test "show print elements"
4950 gdb_test_multiple $test $test {
4951 -re "Limit on string chars or array elements to print is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
4952 set old_elements $expect_out(1,string)
4955 set old_repeats "200"
4956 set test "show print repeats"
4957 gdb_test_multiple $test $test {
4958 -re "Threshold for repeated print elements is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
4959 set old_repeats $expect_out(1,string)
4962 gdb_test_no_output "set print elements unlimited" ""
4963 gdb_test_no_output "set print repeats unlimited" ""
4966 # Check whether argc is 1.
4967 gdb_test_multiple "p argc" "p argc" {
4968 -re " = 1\r\n${gdb_prompt} $" {
4970 gdb_test_multiple "p argv\[0\]" "p argv\[0\]" {
4971 -re " = $hex \".*[file tail $exe]\"\r\n${gdb_prompt} $" {
4974 -re "${gdb_prompt} $" {
4978 -re "${gdb_prompt} $" {
4982 gdb_test_no_output "set print elements $old_elements" ""
4983 gdb_test_no_output "set print repeats $old_repeats" ""
4988 set result [gdb_has_argv0_1 $exe]
4995 && ([istarget *-*-linux*]
4996 || [istarget *-*-freebsd*] || [istarget *-*-kfreebsd*]
4997 || [istarget *-*-netbsd*] || [istarget *-*-knetbsd*]
4998 || [istarget *-*-openbsd*]
4999 || [istarget *-*-darwin*]
5000 || [istarget *-*-solaris*]
5001 || [istarget *-*-aix*]
5002 || [istarget *-*-gnu*]
5003 || [istarget *-*-cygwin*] || [istarget *-*-mingw32*]
5004 || [istarget *-*-*djgpp*] || [istarget *-*-go32*]
5005 || [istarget *-wince-pe] || [istarget *-*-mingw32ce*]
5006 || [istarget *-*-symbianelf*]
5007 || [istarget *-*-osf*]
5008 || [istarget *-*-dicos*]
5009 || [istarget *-*-nto*]
5010 || [istarget *-*-*vms*]
5011 || [istarget *-*-lynx*178]) } {
5012 fail "argv\[0\] should be available on this target"
5018 # Note: the procedure gdb_gnu_strip_debug will produce an executable called
5019 # ${binfile}.dbglnk, which is just like the executable ($binfile) but without
5020 # the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
5021 # the name of a debuginfo only file. This file will be stored in the same
5024 # Functions for separate debug info testing
5026 # starting with an executable:
5027 # foo --> original executable
5029 # at the end of the process we have:
5030 # foo.stripped --> foo w/o debug info
5031 # foo.debug --> foo's debug info
5032 # foo --> like foo, but with a new .gnu_debuglink section pointing to foo.debug.
5034 # Fetch the build id from the file.
5035 # Returns "" if there is none.
5037 proc get_build_id { filename } {
5038 if { ([istarget "*-*-mingw*"]
5039 || [istarget *-*-cygwin*]) } {
5040 set objdump_program [gdb_find_objdump]
5041 set result [catch {set data [exec $objdump_program -p $filename | grep signature | cut "-d " -f4]} output]
5042 verbose "result is $result"
5043 verbose "output is $output"
5049 set tmp [standard_output_file "${filename}-tmp"]
5050 set objcopy_program [gdb_find_objcopy]
5051 set result [catch "exec $objcopy_program -j .note.gnu.build-id -O binary $filename $tmp" output]
5052 verbose "result is $result"
5053 verbose "output is $output"
5058 fconfigure $fi -translation binary
5059 # Skip the NOTE header.
5064 if ![string compare $data ""] then {
5067 # Convert it to hex.
5068 binary scan $data H* data
5073 # Return the build-id hex string (usually 160 bits as 40 hex characters)
5074 # converted to the form: .build-id/ab/cdef1234...89.debug
5075 # Return "" if no build-id found.
5076 proc build_id_debug_filename_get { filename } {
5077 set data [get_build_id $filename]
5078 if { $data == "" } {
5081 regsub {^..} $data {\0/} data
5082 return ".build-id/${data}.debug"
5085 # Create stripped files for DEST, replacing it. If ARGS is passed, it is a
5086 # list of optional flags. The only currently supported flag is no-main,
5087 # which removes the symbol entry for main from the separate debug file.
5089 # Function returns zero on success. Function will return non-zero failure code
5090 # on some targets not supporting separate debug info (such as i386-msdos).
5092 proc gdb_gnu_strip_debug { dest args } {
5094 # Use the first separate debug info file location searched by GDB so the
5095 # run cannot be broken by some stale file searched with higher precedence.
5096 set debug_file "${dest}.debug"
5098 set strip_to_file_program [transform strip]
5099 set objcopy_program [gdb_find_objcopy]
5101 set debug_link [file tail $debug_file]
5102 set stripped_file "${dest}.stripped"
5104 # Get rid of the debug info, and store result in stripped_file
5105 # something like gdb/testsuite/gdb.base/blah.stripped.
5106 set result [catch "exec $strip_to_file_program --strip-debug ${dest} -o ${stripped_file}" output]
5107 verbose "result is $result"
5108 verbose "output is $output"
5113 # Workaround PR binutils/10802:
5114 # Preserve the 'x' bit also for PIEs (Position Independent Executables).
5115 set perm [file attributes ${dest} -permissions]
5116 file attributes ${stripped_file} -permissions $perm
5118 # Get rid of everything but the debug info, and store result in debug_file
5119 # This will be in the .debug subdirectory, see above.
5120 set result [catch "exec $strip_to_file_program --only-keep-debug ${dest} -o ${debug_file}" output]
5121 verbose "result is $result"
5122 verbose "output is $output"
5127 # If no-main is passed, strip the symbol for main from the separate
5128 # file. This is to simulate the behavior of elfutils's eu-strip, which
5129 # leaves the symtab in the original file only. There's no way to get
5130 # objcopy or strip to remove the symbol table without also removing the
5131 # debugging sections, so this is as close as we can get.
5132 if { [llength $args] == 1 && [lindex $args 0] == "no-main" } {
5133 set result [catch "exec $objcopy_program -N main ${debug_file} ${debug_file}-tmp" output]
5134 verbose "result is $result"
5135 verbose "output is $output"
5139 file delete "${debug_file}"
5140 file rename "${debug_file}-tmp" "${debug_file}"
5143 # Link the two previous output files together, adding the .gnu_debuglink
5144 # section to the stripped_file, containing a pointer to the debug_file,
5145 # save the new file in dest.
5146 # This will be the regular executable filename, in the usual location.
5147 set result [catch "exec $objcopy_program --add-gnu-debuglink=${debug_file} ${stripped_file} ${dest}" output]
5148 verbose "result is $result"
5149 verbose "output is $output"
5154 # Workaround PR binutils/10802:
5155 # Preserve the 'x' bit also for PIEs (Position Independent Executables).
5156 set perm [file attributes ${stripped_file} -permissions]
5157 file attributes ${dest} -permissions $perm
5162 # Test the output of GDB_COMMAND matches the pattern obtained
5163 # by concatenating all elements of EXPECTED_LINES. This makes
5164 # it possible to split otherwise very long string into pieces.
5165 # If third argument is not empty, it's used as the name of the
5166 # test to be printed on pass/fail.
5167 proc help_test_raw { gdb_command expected_lines args } {
5168 set message $gdb_command
5169 if [llength $args]>0 then {
5170 set message [lindex $args 0]
5172 set expected_output [join $expected_lines ""]
5173 gdb_test "${gdb_command}" "${expected_output}" $message
5176 # Test the output of "help COMMAND_CLASS". EXPECTED_INITIAL_LINES
5177 # are regular expressions that should match the beginning of output,
5178 # before the list of commands in that class. The presence of
5179 # command list and standard epilogue will be tested automatically.
5180 # Notice that the '[' and ']' characters don't need to be escaped for strings
5181 # wrapped in {} braces.
5182 proc test_class_help { command_class expected_initial_lines args } {
5184 "List of commands\:.*[\r\n]+"
5185 "Type \"help\" followed by command name for full documentation\.[\r\n]+"
5186 "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n]+"
5187 "Command name abbreviations are allowed if unambiguous\."
5189 set l_entire_body [concat $expected_initial_lines $l_stock_body]
5191 eval [list help_test_raw "help ${command_class}" $l_entire_body] $args
5194 # COMMAND_LIST should have either one element -- command to test, or
5195 # two elements -- abbreviated command to test, and full command the first
5196 # element is abbreviation of.
5197 # The command must be a prefix command. EXPECTED_INITIAL_LINES
5198 # are regular expressions that should match the beginning of output,
5199 # before the list of subcommands. The presence of
5200 # subcommand list and standard epilogue will be tested automatically.
5201 proc test_prefix_command_help { command_list expected_initial_lines args } {
5202 set command [lindex $command_list 0]
5203 if {[llength $command_list]>1} {
5204 set full_command [lindex $command_list 1]
5206 set full_command $command
5208 # Use 'list' and not just {} because we want variables to
5209 # be expanded in this list.
5210 set l_stock_body [list\
5211 "List of $full_command subcommands\:.*\[\r\n\]+"\
5212 "Type \"help $full_command\" followed by $full_command subcommand name for full documentation\.\[\r\n\]+"\
5213 "Type \"apropos word\" to search for commands related to \"word\"\.\[\r\n\]+"\
5214 "Command name abbreviations are allowed if unambiguous\."]
5215 set l_entire_body [concat $expected_initial_lines $l_stock_body]
5216 if {[llength $args]>0} {
5217 help_test_raw "help ${command}" $l_entire_body [lindex $args 0]
5219 help_test_raw "help ${command}" $l_entire_body
5223 # Build executable named EXECUTABLE from specifications that allow
5224 # different options to be passed to different sub-compilations.
5225 # TESTNAME is the name of the test; this is passed to 'untested' if
5227 # OPTIONS is passed to the final link, using gdb_compile. If OPTIONS
5228 # contains the option "pthreads", then gdb_compile_pthreads is used.
5229 # ARGS is a flat list of source specifications, of the form:
5230 # { SOURCE1 OPTIONS1 [ SOURCE2 OPTIONS2 ]... }
5231 # Each SOURCE is compiled to an object file using its OPTIONS,
5232 # using gdb_compile.
5233 # Returns 0 on success, -1 on failure.
5234 proc build_executable_from_specs {testname executable options args} {
5238 set binfile [standard_output_file $executable]
5241 if { [lsearch -exact $options "c++"] >= 0 } {
5242 set info_options "c++"
5244 if [get_compiler_info ${info_options}] {
5248 set func gdb_compile
5249 set func_index [lsearch -regexp $options {^(pthreads|shlib|shlib_pthreads)$}]
5250 if {$func_index != -1} {
5251 set func "${func}_[lindex $options $func_index]"
5254 # gdb_compile_shlib and gdb_compile_shlib_pthreads do not use the 3rd
5255 # parameter. They also requires $sources while gdb_compile and
5256 # gdb_compile_pthreads require $objects. Moreover they ignore any options.
5257 if [string match gdb_compile_shlib* $func] {
5259 foreach {s local_options} $args {
5260 if { [regexp "^/" "$s"] } then {
5261 lappend sources_path "$s"
5263 lappend sources_path "$srcdir/$subdir/$s"
5266 set ret [$func $sources_path "${binfile}" $options]
5267 } elseif {[lsearch -exact $options rust] != -1} {
5269 foreach {s local_options} $args {
5270 if { [regexp "^/" "$s"] } then {
5271 lappend sources_path "$s"
5273 lappend sources_path "$srcdir/$subdir/$s"
5276 set ret [gdb_compile_rust $sources_path "${binfile}" $options]
5280 foreach {s local_options} $args {
5281 if { ! [regexp "^/" "$s"] } then {
5282 set s "$srcdir/$subdir/$s"
5284 if { [gdb_compile "${s}" "${binfile}${i}.o" object $local_options] != "" } {
5288 lappend objects "${binfile}${i}.o"
5291 set ret [$func $objects "${binfile}" executable $options]
5301 # Build executable named EXECUTABLE, from SOURCES. If SOURCES are not
5302 # provided, uses $EXECUTABLE.c. The TESTNAME paramer is the name of test
5303 # to pass to untested, if something is wrong. OPTIONS are passed
5304 # to gdb_compile directly.
5305 proc build_executable { testname executable {sources ""} {options {debug}} } {
5306 if {[llength $sources]==0} {
5307 set sources ${executable}.c
5310 set arglist [list $testname $executable $options]
5311 foreach source $sources {
5312 lappend arglist $source $options
5315 return [eval build_executable_from_specs $arglist]
5318 # Starts fresh GDB binary and loads an optional executable into GDB.
5319 # Usage: clean_restart [executable]
5320 # EXECUTABLE is the basename of the binary.
5322 proc clean_restart { args } {
5326 if { [llength $args] > 1 } {
5327 error "bad number of args: [llength $args]"
5332 gdb_reinitialize_dir $srcdir/$subdir
5334 if { [llength $args] >= 1 } {
5335 set executable [lindex $args 0]
5336 set binfile [standard_output_file ${executable}]
5341 # Prepares for testing by calling build_executable_full, then
5343 # TESTNAME is the name of the test.
5344 # Each element in ARGS is a list of the form
5345 # { EXECUTABLE OPTIONS SOURCE_SPEC... }
5346 # These are passed to build_executable_from_specs, which see.
5347 # The last EXECUTABLE is passed to clean_restart.
5348 # Returns 0 on success, non-zero on failure.
5349 proc prepare_for_testing_full {testname args} {
5350 foreach spec $args {
5351 if {[eval build_executable_from_specs [list $testname] $spec] == -1} {
5354 set executable [lindex $spec 0]
5356 clean_restart $executable
5360 # Prepares for testing, by calling build_executable, and then clean_restart.
5361 # Please refer to build_executable for parameter description.
5362 proc prepare_for_testing { testname executable {sources ""} {options {debug}}} {
5364 if {[build_executable $testname $executable $sources $options] == -1} {
5367 clean_restart $executable
5372 proc get_valueof { fmt exp default } {
5375 set test "get valueof \"${exp}\""
5377 gdb_test_multiple "print${fmt} ${exp}" "$test" {
5378 -re "\\$\[0-9\]* = (.*)\[\r\n\]*$gdb_prompt $" {
5379 set val $expect_out(1,string)
5383 fail "$test (timeout)"
5389 proc get_integer_valueof { exp default } {
5392 set test "get integer valueof \"${exp}\""
5394 gdb_test_multiple "print /d ${exp}" "$test" {
5395 -re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" {
5396 set val $expect_out(1,string)
5400 fail "$test (timeout)"
5406 proc get_hexadecimal_valueof { exp default } {
5408 send_gdb "print /x ${exp}\n"
5409 set test "get hexadecimal valueof \"${exp}\""
5411 -re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
5412 set val $expect_out(1,string)
5417 fail "$test (timeout)"
5423 proc get_sizeof { type default } {
5424 return [get_integer_valueof "sizeof (${type})" $default]
5427 proc get_target_charset { } {
5430 gdb_test_multiple "show target-charset" "" {
5431 -re "The target character set is \"auto; currently (\[^\"\]*)\".*$gdb_prompt $" {
5432 return $expect_out(1,string)
5434 -re "The target character set is \"(\[^\"\]*)\".*$gdb_prompt $" {
5435 return $expect_out(1,string)
5439 # Pick a reasonable default.
5440 warning "Unable to read target-charset."
5444 # Get the current value for remotetimeout and return it.
5445 proc get_remotetimeout { } {
5449 gdb_test_multiple "show remotetimeout" "" {
5450 -re "Timeout limit to wait for target to respond is ($decimal).*$gdb_prompt $" {
5451 return $expect_out(1,string)
5455 # Pick the default that gdb uses
5456 warning "Unable to read remotetimeout"
5460 # Set the remotetimeout to the specified timeout. Nothing is returned.
5461 proc set_remotetimeout { timeout } {
5464 gdb_test_multiple "set remotetimeout $timeout" "" {
5465 -re "$gdb_prompt $" {
5466 verbose "Set remotetimeout to $timeout\n"
5471 # ROOT and FULL are file names. Returns the relative path from ROOT
5472 # to FULL. Note that FULL must be in a subdirectory of ROOT.
5473 # For example, given ROOT = /usr/bin and FULL = /usr/bin/ls, this
5476 proc relative_filename {root full} {
5477 set root_split [file split $root]
5478 set full_split [file split $full]
5480 set len [llength $root_split]
5482 if {[eval file join $root_split]
5483 != [eval file join [lrange $full_split 0 [expr {$len - 1}]]]} {
5484 error "$full not a subdir of $root"
5487 return [eval file join [lrange $full_split $len end]]
5490 # Log gdb command line and script if requested.
5491 if {[info exists TRANSCRIPT]} {
5492 rename send_gdb real_send_gdb
5493 rename remote_spawn real_remote_spawn
5494 rename remote_close real_remote_close
5496 global gdb_transcript
5497 set gdb_transcript ""
5499 global gdb_trans_count
5500 set gdb_trans_count 1
5502 proc remote_spawn {args} {
5503 global gdb_transcript gdb_trans_count outdir
5505 if {$gdb_transcript != ""} {
5506 close $gdb_transcript
5508 set gdb_transcript [open [file join $outdir transcript.$gdb_trans_count] w]
5509 puts $gdb_transcript [lindex $args 1]
5510 incr gdb_trans_count
5512 return [uplevel real_remote_spawn $args]
5515 proc remote_close {args} {
5516 global gdb_transcript
5518 if {$gdb_transcript != ""} {
5519 close $gdb_transcript
5520 set gdb_transcript ""
5523 return [uplevel real_remote_close $args]
5526 proc send_gdb {args} {
5527 global gdb_transcript
5529 if {$gdb_transcript != ""} {
5530 puts -nonewline $gdb_transcript [lindex $args 0]
5533 return [uplevel real_send_gdb $args]
5537 # If GDB_PARALLEL exists, then set up the parallel-mode directories.
5538 if {[info exists GDB_PARALLEL]} {
5539 if {[is_remote host]} {
5543 [make_gdb_parallel_path outputs] \
5544 [make_gdb_parallel_path temp] \
5545 [make_gdb_parallel_path cache]
5549 proc core_find {binfile {deletefiles {}} {arg ""}} {
5550 global objdir subdir
5552 set destcore "$binfile.core"
5553 file delete $destcore
5555 # Create a core file named "$destcore" rather than just "core", to
5556 # avoid problems with sys admin types that like to regularly prune all
5557 # files named "core" from the system.
5559 # Arbitrarily try setting the core size limit to "unlimited" since
5560 # this does not hurt on systems where the command does not work and
5561 # allows us to generate a core on systems where it does.
5563 # Some systems append "core" to the name of the program; others append
5564 # the name of the program to "core"; still others (like Linux, as of
5565 # May 2003) create cores named "core.PID". In the latter case, we
5566 # could have many core files lying around, and it may be difficult to
5567 # tell which one is ours, so let's run the program in a subdirectory.
5569 set coredir [standard_output_file coredir.[getpid]]
5571 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile} ${arg}; true) >/dev/null 2>&1\""
5572 # remote_exec host "${binfile}"
5573 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
5574 if [remote_file build exists $i] {
5575 remote_exec build "mv $i $destcore"
5579 # Check for "core.PID".
5580 if { $found == 0 } {
5581 set names [glob -nocomplain -directory $coredir core.*]
5582 if {[llength $names] == 1} {
5583 set corefile [file join $coredir [lindex $names 0]]
5584 remote_exec build "mv $corefile $destcore"
5588 if { $found == 0 } {
5589 # The braindamaged HPUX shell quits after the ulimit -c above
5590 # without executing ${binfile}. So we try again without the
5591 # ulimit here if we didn't find a core file above.
5592 # Oh, I should mention that any "braindamaged" non-Unix system has
5593 # the same problem. I like the cd bit too, it's really neat'n stuff.
5594 catch "system \"(cd ${objdir}/${subdir}; ${binfile}; true) >/dev/null 2>&1\""
5595 foreach i "${objdir}/${subdir}/core ${objdir}/${subdir}/core.coremaker.c ${binfile}.core" {
5596 if [remote_file build exists $i] {
5597 remote_exec build "mv $i $destcore"
5603 # Try to clean up after ourselves.
5604 foreach deletefile $deletefiles {
5605 remote_file build delete [file join $coredir $deletefile]
5607 remote_exec build "rmdir $coredir"
5609 if { $found == 0 } {
5610 warning "can't generate a core file - core tests suppressed - check ulimit -c"
5616 # gdb_target_symbol_prefix compiles a test program and then examines
5617 # the output from objdump to determine the prefix (such as underscore)
5618 # for linker symbol prefixes.
5620 gdb_caching_proc gdb_target_symbol_prefix {
5621 # Set up and compile a simple test program...
5622 set src [standard_temp_file main[pid].c]
5623 set exe [standard_temp_file main[pid].x]
5625 gdb_produce_source $src {
5631 verbose "compiling testfile $src" 2
5632 set compile_flags {debug nowarnings quiet}
5633 set lines [gdb_compile $src $exe executable $compile_flags]
5637 if ![string match "" $lines] then {
5638 verbose "gdb_target_symbol_prefix: testfile compilation failed, returning null prefix" 2
5640 set objdump_program [gdb_find_objdump]
5641 set result [catch "exec $objdump_program --syms $exe" output]
5644 && ![regexp -lineanchor \
5645 { ([^ a-zA-Z0-9]*)main$} $output dummy prefix] } {
5646 verbose "gdb_target_symbol_prefix: Could not find main in objdump output; returning null prefix" 2
5656 # gdb_target_symbol returns the provided symbol with the correct prefix
5657 # prepended. (See gdb_target_symbol_prefix, above.)
5659 proc gdb_target_symbol { symbol } {
5660 set prefix [gdb_target_symbol_prefix]
5661 return "${prefix}${symbol}"
5664 # gdb_target_symbol_prefix_flags_asm returns a string that can be
5665 # added to gdb_compile options to define the C-preprocessor macro
5666 # SYMBOL_PREFIX with a value that can be prepended to symbols
5667 # for targets which require a prefix, such as underscore.
5669 # This version (_asm) defines the prefix without double quotes
5670 # surrounding the prefix. It is used to define the macro
5671 # SYMBOL_PREFIX for assembly language files. Another version, below,
5672 # is used for symbols in inline assembler in C/C++ files.
5674 # The lack of quotes in this version (_asm) makes it possible to
5675 # define supporting macros in the .S file. (The version which
5676 # uses quotes for the prefix won't work for such files since it's
5677 # impossible to define a quote-stripping macro in C.)
5679 # It's possible to use this version (_asm) for C/C++ source files too,
5680 # but a string is usually required in such files; providing a version
5681 # (no _asm) which encloses the prefix with double quotes makes it
5682 # somewhat easier to define the supporting macros in the test case.
5684 proc gdb_target_symbol_prefix_flags_asm {} {
5685 set prefix [gdb_target_symbol_prefix]
5686 if {$prefix ne ""} {
5687 return "additional_flags=-DSYMBOL_PREFIX=$prefix"
5693 # gdb_target_symbol_prefix_flags returns the same string as
5694 # gdb_target_symbol_prefix_flags_asm, above, but with the prefix
5695 # enclosed in double quotes if there is a prefix.
5697 # See the comment for gdb_target_symbol_prefix_flags_asm for an
5698 # extended discussion.
5700 proc gdb_target_symbol_prefix_flags {} {
5701 set prefix [gdb_target_symbol_prefix]
5702 if {$prefix ne ""} {
5703 return "additional_flags=-DSYMBOL_PREFIX=\"$prefix\""
5709 # A wrapper for 'remote_exec host' that passes or fails a test.
5710 # Returns 0 if all went well, nonzero on failure.
5711 # TEST is the name of the test, other arguments are as for remote_exec.
5713 proc run_on_host { test program args } {
5714 verbose -log "run_on_host: $program $args"
5715 # remote_exec doesn't work properly if the output is set but the
5716 # input is the empty string -- so replace an empty input with
5718 if {[llength $args] > 1 && [lindex $args 1] == ""} {
5719 set args [lreplace $args 1 1 "/dev/null"]
5721 set result [eval remote_exec host [list $program] $args]
5722 verbose "result is $result"
5723 set status [lindex $result 0]
5724 set output [lindex $result 1]
5729 verbose -log "run_on_host failed: $output"
5735 # Return non-zero if "board_info debug_flags" mentions Fission.
5736 # http://gcc.gnu.org/wiki/DebugFission
5737 # Fission doesn't support everything yet.
5738 # This supports working around bug 15954.
5740 proc using_fission { } {
5741 set debug_flags [board_info [target_info name] debug_flags]
5742 return [regexp -- "-gsplit-dwarf" $debug_flags]
5745 # Search the caller's ARGS list and set variables according to the list of
5746 # valid options described by ARGSET.
5748 # The first member of each one- or two-element list in ARGSET defines the
5749 # name of a variable that will be added to the caller's scope.
5751 # If only one element is given to describe an option, it the value is
5752 # 0 if the option is not present in (the caller's) ARGS or 1 if
5755 # If two elements are given, the second element is the default value of
5756 # the variable. This is then overwritten if the option exists in ARGS.
5758 # Any parse_args elements in (the caller's) ARGS will be removed, leaving
5759 # any optional components.
5762 # proc myproc {foo args} {
5763 # parse_args {{bar} {baz "abc"} {qux}}
5766 # myproc ABC -bar -baz DEF peanut butter
5767 # will define the following variables in myproc:
5768 # foo (=ABC), bar (=1), baz (=DEF), and qux (=0)
5769 # args will be the list {peanut butter}
5771 proc parse_args { argset } {
5774 foreach argument $argset {
5775 if {[llength $argument] == 1} {
5776 # No default specified, so we assume that we should set
5777 # the value to 1 if the arg is present and 0 if it's not.
5778 # It is assumed that no value is given with the argument.
5779 set result [lsearch -exact $args "-$argument"]
5780 if {$result != -1} then {
5781 uplevel 1 [list set $argument 1]
5782 set args [lreplace $args $result $result]
5784 uplevel 1 [list set $argument 0]
5786 } elseif {[llength $argument] == 2} {
5787 # There are two items in the argument. The second is a
5788 # default value to use if the item is not present.
5789 # Otherwise, the variable is set to whatever is provided
5790 # after the item in the args.
5791 set arg [lindex $argument 0]
5792 set result [lsearch -exact $args "-[lindex $arg 0]"]
5793 if {$result != -1} then {
5794 uplevel 1 [list set $arg [lindex $args [expr $result+1]]]
5795 set args [lreplace $args $result [expr $result+1]]
5797 uplevel 1 [list set $arg [lindex $argument 1]]
5800 error "Badly formatted argument \"$argument\" in argument set"
5804 # The remaining args should be checked to see that they match the
5805 # number of items expected to be passed into the procedure...
5808 # Capture the output of COMMAND in a string ignoring PREFIX (a regexp);
5809 # return that string.
5811 proc capture_command_output { command prefix } {
5815 set output_string ""
5816 gdb_test_multiple "$command" "capture_command_output for $command" {
5817 -re "[string_to_regexp ${command}]\[\r\n\]+${prefix}(.*)\[\r\n\]+$gdb_prompt $" {
5818 set output_string $expect_out(1,string)
5821 return $output_string
5824 # A convenience function that joins all the arguments together, with a
5825 # regexp that matches exactly one end of line in between each argument.
5826 # This function is ideal to write the expected output of a GDB command
5827 # that generates more than a couple of lines, as this allows us to write
5828 # each line as a separate string, which is easier to read by a human
5831 proc multi_line { args } {
5832 return [join $args "\r\n"]
5835 # Always load compatibility stuff.