1 # Copyright 1992-2020 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
35 # The spawn ID used for I/O interaction with the inferior. For native
36 # targets, or remote targets that can do I/O through GDB
37 # (semi-hosting) this will be the same as the host/GDB's spawn ID.
38 # Otherwise, the board may set this to some other spawn ID. E.g.,
39 # when debugging with GDBserver, this is set to GDBserver's spawn ID,
40 # so input/output is done on gdbserver's tty.
41 global inferior_spawn_id
43 if [info exists TOOL_EXECUTABLE] {
44 set GDB $TOOL_EXECUTABLE
46 if ![info exists GDB] {
47 if ![is_remote host] {
48 set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
50 set GDB [transform gdb]
53 verbose "using GDB = $GDB" 2
55 # GDBFLAGS is available for the user to set on the command line.
56 # E.g. make check RUNTESTFLAGS=GDBFLAGS=mumble
57 # Testcases may use it to add additional flags, but they must:
58 # - append new flags, not overwrite
59 # - restore the original value when done
61 if ![info exists GDBFLAGS] {
64 verbose "using GDBFLAGS = $GDBFLAGS" 2
66 # Make the build data directory available to tests.
67 set BUILD_DATA_DIRECTORY "[pwd]/../data-directory"
69 # INTERNAL_GDBFLAGS contains flags that the testsuite requires.
70 global INTERNAL_GDBFLAGS
71 if ![info exists INTERNAL_GDBFLAGS] {
72 set INTERNAL_GDBFLAGS "-nw -nx -data-directory $BUILD_DATA_DIRECTORY"
75 # The variable gdb_prompt is a regexp which matches the gdb prompt.
76 # Set it if it is not already set. This is also set by default_gdb_init
77 # but it's not clear what removing one of them will break.
78 # See with_gdb_prompt for more details on prompt handling.
80 if ![info exists gdb_prompt] then {
81 set gdb_prompt "\\(gdb\\)"
84 # A regexp that matches the pagination prompt.
85 set pagination_prompt \
86 "--Type <RET> for more, q to quit, c to continue without paging--"
88 # The variable fullname_syntax_POSIX is a regexp which matches a POSIX
89 # absolute path ie. /foo/
90 set fullname_syntax_POSIX {/[^\n]*/}
91 # The variable fullname_syntax_UNC is a regexp which matches a Windows
92 # UNC path ie. \\D\foo\
93 set fullname_syntax_UNC {\\\\[^\\]+\\[^\n]+\\}
94 # The variable fullname_syntax_DOS_CASE is a regexp which matches a
95 # particular DOS case that GDB most likely will output
96 # ie. \foo\, but don't match \\.*\
97 set fullname_syntax_DOS_CASE {\\[^\\][^\n]*\\}
98 # The variable fullname_syntax_DOS is a regexp which matches a DOS path
99 # ie. a:\foo\ && a:foo\
100 set fullname_syntax_DOS {[a-zA-Z]:[^\n]*\\}
101 # The variable fullname_syntax is a regexp which matches what GDB considers
102 # an absolute path. It is currently debatable if the Windows style paths
103 # d:foo and \abc should be considered valid as an absolute path.
104 # Also, the purpse of this regexp is not to recognize a well formed
105 # absolute path, but to say with certainty that a path is absolute.
106 set fullname_syntax "($fullname_syntax_POSIX|$fullname_syntax_UNC|$fullname_syntax_DOS_CASE|$fullname_syntax_DOS)"
108 # Needed for some tests under Cygwin.
112 if ![info exists env(EXEEXT)] {
115 set EXEEXT $env(EXEEXT)
120 set inferior_exited_re "(?:\\\[Inferior \[0-9\]+ \\(\[^\n\r\]*\\) exited)"
122 # A regular expression that matches a value history number.
124 set valnum_re "\\\$$decimal"
126 ### Only procedures should come after this point.
129 # gdb_version -- extract and print the version number of GDB
131 proc default_gdb_version {} {
133 global INTERNAL_GDBFLAGS GDBFLAGS
137 if {[info exists inotify_pid]} {
138 eval exec kill $inotify_pid
141 set output [remote_exec host "$GDB $INTERNAL_GDBFLAGS --version"]
142 set tmp [lindex $output 1]
144 regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
145 if ![is_remote host] {
146 clone_output "[which $GDB] version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
148 clone_output "$GDB on remote host version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
152 proc gdb_version { } {
153 return [default_gdb_version]
157 # gdb_unload -- unload a file if one is loaded
158 # Return 0 on success, -1 on error.
166 -re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue }
167 -re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue }
168 -re "A program is being debugged already.*Are you sure you want to change the file.*y or n. $" {
169 send_gdb "y\n" answer
172 -re "Discard symbol table from .*y or n.*$" {
173 send_gdb "y\n" answer
176 -re "$gdb_prompt $" {}
178 perror "couldn't unload file in $GDB (timeout)."
185 # Many of the tests depend on setting breakpoints at various places and
186 # running until that breakpoint is reached. At times, we want to start
187 # with a clean-slate with respect to breakpoints, so this utility proc
188 # lets us do this without duplicating this code everywhere.
191 proc delete_breakpoints {} {
194 # we need a larger timeout value here or this thing just confuses
195 # itself. May need a better implementation if possible. - guo
199 set msg "delete all breakpoints in delete_breakpoints"
201 gdb_test_multiple "delete breakpoints" "$msg" {
202 -re "Delete all breakpoints.*y or n.*$" {
203 send_gdb "y\n" answer
206 -re "$gdb_prompt $" {
212 # Confirm with "info breakpoints".
214 set msg "info breakpoints"
215 gdb_test_multiple $msg $msg {
216 -re "No breakpoints or watchpoints..*$gdb_prompt $" {
219 -re "$gdb_prompt $" {
225 perror "breakpoints not deleted"
229 # Returns true iff the target supports using the "run" command.
231 proc target_can_use_run_cmd {} {
232 if [target_info exists use_gdb_stub] {
233 # In this case, when we connect, the inferior is already
242 # Generic run command.
244 # The second pattern below matches up to the first newline *only*.
245 # Using ``.*$'' could swallow up output that we attempt to match
248 # N.B. This function does not wait for gdb to return to the prompt,
249 # that is the caller's responsibility.
251 proc gdb_run_cmd {args} {
252 global gdb_prompt use_gdb_stub
254 foreach command [gdb_init_commands] {
255 send_gdb "$command\n"
257 -re "$gdb_prompt $" { }
259 perror "gdb_init_command for target failed"
266 if [target_info exists gdb,do_reload_on_run] {
267 if { [gdb_reload] != 0 } {
270 send_gdb "continue\n"
272 -re "Continu\[^\r\n\]*\[\r\n\]" {}
278 if [target_info exists gdb,start_symbol] {
279 set start [target_info gdb,start_symbol]
283 send_gdb "jump *$start\n"
285 while { $start_attempt } {
286 # Cap (re)start attempts at three to ensure that this loop
287 # always eventually fails. Don't worry about trying to be
288 # clever and not send a command when it has failed.
289 if [expr $start_attempt > 3] {
290 perror "Jump to start() failed (retry count exceeded)"
293 set start_attempt [expr $start_attempt + 1]
295 -re "Continuing at \[^\r\n\]*\[\r\n\]" {
298 -re "No symbol \"_start\" in current.*$gdb_prompt $" {
299 perror "Can't find start symbol to run in gdb_run"
302 -re "No symbol \"start\" in current.*$gdb_prompt $" {
303 send_gdb "jump *_start\n"
305 -re "No symbol.*context.*$gdb_prompt $" {
308 -re "Line.* Jump anyway.*y or n. $" {
309 send_gdb "y\n" answer
311 -re "The program is not being run.*$gdb_prompt $" {
312 if { [gdb_reload] != 0 } {
315 send_gdb "jump *$start\n"
318 perror "Jump to start() failed (timeout)"
326 if [target_info exists gdb,do_reload_on_run] {
327 if { [gdb_reload] != 0 } {
331 send_gdb "run $args\n"
332 # This doesn't work quite right yet.
333 # Use -notransfer here so that test cases (like chng-sym.exp)
334 # may test for additional start-up messages.
336 -re "The program .* has been started already.*y or n. $" {
337 send_gdb "y\n" answer
340 -notransfer -re "Starting program: \[^\r\n\]*" {}
341 -notransfer -re "$gdb_prompt $" {
342 # There is no more input expected.
347 # Generic start command. Return 0 if we could start the program, -1
350 # N.B. This function does not wait for gdb to return to the prompt,
351 # that is the caller's responsibility.
353 proc gdb_start_cmd {args} {
354 global gdb_prompt use_gdb_stub
356 foreach command [gdb_init_commands] {
357 send_gdb "$command\n"
359 -re "$gdb_prompt $" { }
361 perror "gdb_init_command for target failed"
371 send_gdb "start $args\n"
372 # Use -notransfer here so that test cases (like chng-sym.exp)
373 # may test for additional start-up messages.
375 -re "The program .* has been started already.*y or n. $" {
376 send_gdb "y\n" answer
379 -notransfer -re "Starting program: \[^\r\n\]*" {
386 # Generic starti command. Return 0 if we could start the program, -1
389 # N.B. This function does not wait for gdb to return to the prompt,
390 # that is the caller's responsibility.
392 proc gdb_starti_cmd {args} {
393 global gdb_prompt use_gdb_stub
395 foreach command [gdb_init_commands] {
396 send_gdb "$command\n"
398 -re "$gdb_prompt $" { }
400 perror "gdb_init_command for target failed"
410 send_gdb "starti $args\n"
412 -re "The program .* has been started already.*y or n. $" {
413 send_gdb "y\n" answer
416 -re "Starting program: \[^\r\n\]*" {
423 # Set a breakpoint at FUNCTION. If there is an additional argument it is
424 # a list of options; the supported options are allow-pending, temporary,
425 # message, no-message, passfail and qualified.
426 # The result is 1 for success, 0 for failure.
428 # Note: The handling of message vs no-message is messed up, but it's based
429 # on historical usage. By default this function does not print passes,
431 # no-message: turns off printing of fails (and passes, but they're already off)
432 # message: turns on printing of passes (and fails, but they're already on)
434 proc gdb_breakpoint { function args } {
438 set pending_response n
439 if {[lsearch -exact $args allow-pending] != -1} {
440 set pending_response y
443 set break_command "break"
444 set break_message "Breakpoint"
445 if {[lsearch -exact $args temporary] != -1} {
446 set break_command "tbreak"
447 set break_message "Temporary breakpoint"
450 if {[lsearch -exact $args qualified] != -1} {
451 append break_command " -qualified"
456 set no_message_loc [lsearch -exact $args no-message]
457 set message_loc [lsearch -exact $args message]
458 # The last one to appear in args wins.
459 if { $no_message_loc > $message_loc } {
461 } elseif { $message_loc > $no_message_loc } {
465 set test_name "setting breakpoint at $function"
467 send_gdb "$break_command $function\n"
468 # The first two regexps are what we get with -g, the third is without -g.
470 -re "$break_message \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {}
471 -re "$break_message \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {}
472 -re "$break_message \[0-9\]* at .*$gdb_prompt $" {}
473 -re "$break_message \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" {
474 if {$pending_response == "n"} {
481 -re "Make breakpoint pending.*y or \\\[n\\\]. $" {
482 send_gdb "$pending_response\n"
485 -re "A problem internal to GDB has been detected" {
487 fail "$test_name (GDB internal error)"
489 gdb_internal_error_resync
492 -re "$gdb_prompt $" {
500 fail "$test_name (eof)"
506 fail "$test_name (timeout)"
517 # Set breakpoint at function and run gdb until it breaks there.
518 # Since this is the only breakpoint that will be set, if it stops
519 # at a breakpoint, we will assume it is the one we want. We can't
520 # just compare to "function" because it might be a fully qualified,
521 # single quoted C++ function specifier.
523 # If there are additional arguments, pass them to gdb_breakpoint.
524 # We recognize no-message/message ourselves.
525 # The default is no-message.
526 # no-message is messed up here, like gdb_breakpoint: to preserve
527 # historical usage fails are always printed by default.
528 # no-message: turns off printing of fails (and passes, but they're already off)
529 # message: turns on printing of passes (and fails, but they're already on)
531 proc runto { function args } {
537 # Default to "no-message".
538 set args "no-message $args"
542 set no_message_loc [lsearch -exact $args no-message]
543 set message_loc [lsearch -exact $args message]
544 # The last one to appear in args wins.
545 if { $no_message_loc > $message_loc } {
547 } elseif { $message_loc > $no_message_loc } {
551 set test_name "running to $function in runto"
553 # We need to use eval here to pass our varargs args to gdb_breakpoint
554 # which is also a varargs function.
555 # But we also have to be careful because $function may have multiple
556 # elements, and we don't want Tcl to move the remaining elements after
557 # the first to $args. That is why $function is wrapped in {}.
558 if ![eval gdb_breakpoint {$function} $args] {
564 # the "at foo.c:36" output we get with -g.
565 # the "in func" output we get without -g.
567 -re "Break.* at .*:$decimal.*$gdb_prompt $" {
573 -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" {
579 -re "The target does not support running in non-stop mode.\r\n$gdb_prompt $" {
581 unsupported "non-stop mode not supported"
585 -re ".*A problem internal to GDB has been detected" {
587 fail "$test_name (GDB internal error)"
589 gdb_internal_error_resync
592 -re "$gdb_prompt $" {
600 fail "$test_name (eof)"
606 fail "$test_name (timeout)"
617 # Ask gdb to run until we hit a breakpoint at main.
619 # N.B. This function deletes all existing breakpoints.
620 # If you don't want that, use gdb_start_cmd.
622 proc runto_main { } {
623 return [runto main no-message]
626 ### Continue, and expect to hit a breakpoint.
627 ### Report a pass or fail, depending on whether it seems to have
628 ### worked. Use NAME as part of the test name; each call to
629 ### continue_to_breakpoint should use a NAME which is unique within
631 proc gdb_continue_to_breakpoint {name {location_pattern .*}} {
633 set full_name "continue to breakpoint: $name"
635 set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
636 gdb_test_multiple "continue" $full_name {
637 -re "(?:Breakpoint|Temporary breakpoint) .* (at|in) $location_pattern\r\n$gdb_prompt $" {
640 -re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
641 kfail "gdb/25038" $full_name
647 # gdb_internal_error_resync:
649 # Answer the questions GDB asks after it reports an internal error
650 # until we get back to a GDB prompt. Decline to quit the debugging
651 # session, and decline to create a core file. Return non-zero if the
654 # This procedure just answers whatever questions come up until it sees
655 # a GDB prompt; it doesn't require you to have matched the input up to
656 # any specific point. However, it only answers questions it sees in
657 # the output itself, so if you've matched a question, you had better
658 # answer it yourself before calling this.
660 # You can use this function thus:
664 # -re ".*A problem internal to GDB has been detected" {
665 # gdb_internal_error_resync
670 proc gdb_internal_error_resync {} {
673 verbose -log "Resyncing due to internal error."
676 while {$count < 10} {
678 -re "Quit this debugging session\\? \\(y or n\\) $" {
679 send_gdb "n\n" answer
682 -re "Create a core file of GDB\\? \\(y or n\\) $" {
683 send_gdb "n\n" answer
686 -re "$gdb_prompt $" {
687 # We're resynchronized.
691 perror "Could not resync from internal error (timeout)"
696 perror "Could not resync from internal error (resync count exceeded)"
701 # gdb_test_multiple COMMAND MESSAGE [ -promp PROMPT_REGEXP] [ -lbl ]
703 # Send a command to gdb; test the result.
705 # COMMAND is the command to execute, send to GDB with send_gdb. If
706 # this is the null string no command is sent.
707 # MESSAGE is a message to be printed with the built-in failure patterns
708 # if one of them matches. If MESSAGE is empty COMMAND will be used.
709 # -prompt PROMPT_REGEXP specifies a regexp matching the expected prompt
710 # after the command output. If empty, defaults to "$gdb_prompt $".
711 # -lbl specifies that line-by-line matching will be used.
712 # EXPECT_ARGUMENTS will be fed to expect in addition to the standard
713 # patterns. Pattern elements will be evaluated in the caller's
714 # context; action elements will be executed in the caller's context.
715 # Unlike patterns for gdb_test, these patterns should generally include
716 # the final newline and prompt.
719 # 1 if the test failed, according to a built-in failure pattern
720 # 0 if only user-supplied patterns matched
721 # -1 if there was an internal error.
723 # You can use this function thus:
725 # gdb_test_multiple "print foo" "test foo" {
726 # -re "expected output 1" {
729 # -re "expected output 2" {
734 # Within action elements you can also make use of the variable
735 # gdb_test_name. This variable is setup automatically by
736 # gdb_test_multiple, and contains the value of MESSAGE. You can then
737 # write this, which is equivalent to the above:
739 # gdb_test_multiple "print foo" "test foo" {
740 # -re "expected output 1" {
741 # pass $gdb_test_name
743 # -re "expected output 2" {
744 # fail $gdb_test_name
748 # Like with "expect", you can also specify the spawn id to match with
749 # -i "$id". Interesting spawn ids are $inferior_spawn_id and
750 # $gdb_spawn_id. The former matches inferior I/O, while the latter
751 # matches GDB I/O. E.g.:
753 # send_inferior "hello\n"
754 # gdb_test_multiple "continue" "test echo" {
755 # -i "$inferior_spawn_id" -re "^hello\r\nhello\r\n$" {
758 # -i "$gdb_spawn_id" -re "Breakpoint.*$gdb_prompt $" {
759 # fail "hit breakpoint"
763 # The standard patterns, such as "Inferior exited..." and "A problem
764 # ...", all being implicitly appended to that list. These are always
765 # expected from $gdb_spawn_id. IOW, callers do not need to worry
766 # about resetting "-i" back to $gdb_spawn_id explicitly.
768 # In EXPECT_ARGUMENTS we can use a -wrap pattern flag, that wraps the regexp
769 # pattern as gdb_test wraps its message argument.
770 # This allows us to rewrite:
771 # gdb_test <command> <pattern> <message>
773 # gdb_test_multiple <command> <message> {
774 # -re -wrap <pattern> {
775 # pass $gdb_test_name
779 # In EXPECT_ARGUMENTS, a pattern flag -early can be used. It makes sure the
780 # pattern is inserted before any implicit pattern added by gdb_test_multiple.
781 # Using this pattern flag, we can f.i. setup a kfail for an assertion failure
782 # <assert> during gdb_continue_to_breakpoint by the rewrite:
783 # gdb_continue_to_breakpoint <msg> <pattern>
785 # set breakpoint_pattern "(?:Breakpoint|Temporary breakpoint) .* (at|in)"
786 # gdb_test_multiple "continue" "continue to breakpoint: <msg>" {
787 # -early -re "internal-error: <assert>" {
788 # setup_kfail gdb/nnnnn "*-*-*"
791 # -re "$breakpoint_pattern <pattern>\r\n$gdb_prompt $" {
792 # pass $gdb_test_name
796 proc gdb_test_multiple { command message args } {
797 global verbose use_gdb_stub
798 global gdb_prompt pagination_prompt
801 global inferior_exited_re
802 upvar timeout timeout
803 upvar expect_out expect_out
808 for {set i 0} {$i < [llength $args]} {incr i} {
809 set arg [lindex $args $i]
810 if { $arg == "-prompt" } {
812 set prompt_regexp [lindex $args $i]
813 } elseif { $arg == "-lbl" } {
820 if { [expr $i + 1] < [llength $args] } {
821 error "Too many arguments to gdb_test_multiple"
822 } elseif { ![info exists user_code] } {
823 error "Too few arguments to gdb_test_multiple"
826 if { "$prompt_regexp" == "" } {
827 set prompt_regexp "$gdb_prompt $"
830 if { $message == "" } {
834 if [string match "*\[\r\n\]" $command] {
835 error "Invalid trailing newline in \"$message\" test"
838 if [string match "*\[\r\n\]*" $message] {
839 error "Invalid newline in \"$message\" test"
843 && [regexp -nocase {^\s*(r|run|star|start|at|att|atta|attac|attach)\M} \
845 error "gdbserver does not support $command without extended-remote"
848 # TCL/EXPECT WART ALERT
849 # Expect does something very strange when it receives a single braced
850 # argument. It splits it along word separators and performs substitutions.
851 # This means that { "[ab]" } is evaluated as "[ab]", but { "\[ab\]" } is
852 # evaluated as "\[ab\]". But that's not how TCL normally works; inside a
853 # double-quoted list item, "\[ab\]" is just a long way of representing
854 # "[ab]", because the backslashes will be removed by lindex.
856 # Unfortunately, there appears to be no easy way to duplicate the splitting
857 # that expect will do from within TCL. And many places make use of the
858 # "\[0-9\]" construct, so we need to support that; and some places make use
859 # of the "[func]" construct, so we need to support that too. In order to
860 # get this right we have to substitute quoted list elements differently
861 # from braced list elements.
863 # We do this roughly the same way that Expect does it. We have to use two
864 # lists, because if we leave unquoted newlines in the argument to uplevel
865 # they'll be treated as command separators, and if we escape newlines
866 # we mangle newlines inside of command blocks. This assumes that the
867 # input doesn't contain a pattern which contains actual embedded newlines
870 regsub -all {\n} ${user_code} { } subst_code
871 set subst_code [uplevel list $subst_code]
873 set processed_code ""
874 set early_processed_code ""
875 # The variable current_list holds the name of the currently processed
876 # list, either processed_code or early_processed_code.
877 set current_list "processed_code"
879 set expecting_action 0
882 foreach item $user_code subst_item $subst_code {
883 if { $item == "-n" || $item == "-notransfer" || $item == "-nocase" } {
884 lappend $current_list $item
887 if { $item == "-indices" || $item == "-re" || $item == "-ex" } {
888 lappend $current_list $item
891 if { $item == "-early" } {
892 set current_list "early_processed_code"
895 if { $item == "-timeout" || $item == "-i" } {
897 lappend $current_list $item
900 if { $item == "-wrap" } {
904 if { $expecting_arg } {
906 lappend $current_list $subst_item
909 if { $expecting_action } {
910 lappend $current_list "uplevel [list $item]"
911 set expecting_action 0
912 # Cosmetic, no effect on the list.
913 append $current_list "\n"
914 # End the effect of -early, it only applies to one action.
915 set current_list "processed_code"
918 set expecting_action 1
919 if { $wrap_pattern } {
920 # Wrap subst_item as is done for the gdb_test PATTERN argument.
921 lappend $current_list \
922 "\[\r\n\]*(?:$subst_item)\[\r\n\]+$gdb_prompt $"
925 lappend $current_list $subst_item
927 if {$patterns != ""} {
930 append patterns "\"$subst_item\""
933 # Also purely cosmetic.
934 regsub -all {\r} $patterns {\\r} patterns
935 regsub -all {\n} $patterns {\\n} patterns
938 send_user "Sending \"$command\" to gdb\n"
939 send_user "Looking to match \"$patterns\"\n"
940 send_user "Message is \"$message\"\n"
944 set string "${command}\n"
945 if { $command != "" } {
946 set multi_line_re "\[\r\n\] *>"
947 while { "$string" != "" } {
948 set foo [string first "\n" "$string"]
949 set len [string length "$string"]
950 if { $foo < [expr $len - 1] } {
951 set str [string range "$string" 0 $foo]
952 if { [send_gdb "$str"] != "" } {
955 if { ! $suppress_flag } {
956 perror "Couldn't send $command to GDB."
961 # since we're checking if each line of the multi-line
962 # command are 'accepted' by GDB here,
963 # we need to set -notransfer expect option so that
964 # command output is not lost for pattern matching
967 -notransfer -re "$multi_line_re$" { verbose "partial: match" 3 }
968 timeout { verbose "partial: timeout" 3 }
970 set string [string range "$string" [expr $foo + 1] end]
971 set multi_line_re "$multi_line_re.*\[\r\n\] *>"
976 if { "$string" != "" } {
977 if { [send_gdb "$string"] != "" } {
980 if { ! $suppress_flag } {
981 perror "Couldn't send $command to GDB."
989 set code $early_processed_code
991 -re ".*A problem internal to GDB has been detected" {
992 fail "$message (GDB internal error)"
993 gdb_internal_error_resync
996 -re "\\*\\*\\* DOSEXIT code.*" {
997 if { $message != "" } {
1000 gdb_suppress_entire_file "GDB died"
1004 append code $processed_code
1006 # Reset the spawn id, in case the processed code used -i.
1012 -re "Ending remote debugging.*$prompt_regexp" {
1013 if ![isnative] then {
1014 warning "Can`t communicate to remote target."
1020 -re "Undefined\[a-z\]* command:.*$prompt_regexp" {
1021 perror "Undefined command \"$command\"."
1025 -re "Ambiguous command.*$prompt_regexp" {
1026 perror "\"$command\" is not a unique command name."
1030 -re "$inferior_exited_re with code \[0-9\]+.*$prompt_regexp" {
1031 if ![string match "" $message] then {
1032 set errmsg "$message (the program exited)"
1034 set errmsg "$command (the program exited)"
1039 -re "$inferior_exited_re normally.*$prompt_regexp" {
1040 if ![string match "" $message] then {
1041 set errmsg "$message (the program exited)"
1043 set errmsg "$command (the program exited)"
1048 -re "The program is not being run.*$prompt_regexp" {
1049 if ![string match "" $message] then {
1050 set errmsg "$message (the program is no longer running)"
1052 set errmsg "$command (the program is no longer running)"
1057 -re "\r\n$prompt_regexp" {
1058 if ![string match "" $message] then {
1063 -re "$pagination_prompt" {
1065 perror "Window too small."
1069 -re "\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " {
1070 send_gdb "n\n" answer
1071 gdb_expect -re "$prompt_regexp"
1072 fail "$message (got interactive prompt)"
1075 -re "\\\[0\\\] cancel\r\n\\\[1\\\] all.*\r\n> $" {
1077 gdb_expect -re "$prompt_regexp"
1078 fail "$message (got breakpoint menu)"
1084 perror "GDB process no longer exists"
1085 set wait_status [wait -i $gdb_spawn_id]
1086 verbose -log "GDB process exited with wait status $wait_status"
1087 if { $message != "" } {
1094 if {$line_by_line} {
1096 -re "\r\n\[^\r\n\]*(?=\r\n)" {
1102 # Now patterns that apply to any spawn id specified.
1106 perror "Process no longer exists"
1107 if { $message != "" } {
1113 perror "internal buffer is full."
1118 if ![string match "" $message] then {
1119 fail "$message (timeout)"
1125 # remote_expect calls the eof section if there is an error on the
1126 # expect call. We already have eof sections above, and we don't
1127 # want them to get called in that situation. Since the last eof
1128 # section becomes the error section, here we define another eof
1129 # section, but with an empty spawn_id list, so that it won't ever
1133 # This comment is here because the eof section must not be
1134 # the empty string, otherwise remote_expect won't realize
1139 # Create gdb_test_name in the parent scope. If this variable
1140 # already exists, which it might if we have nested calls to
1141 # gdb_test_multiple, then preserve the old value, otherwise,
1142 # create a new variable in the parent scope.
1143 upvar gdb_test_name gdb_test_name
1144 if { [info exists gdb_test_name] } {
1145 set gdb_test_name_old "$gdb_test_name"
1147 set gdb_test_name "$message"
1150 set code [catch {gdb_expect $code} string]
1152 # Clean up the gdb_test_name variable. If we had a
1153 # previous value then restore it, otherwise, delete the variable
1154 # from the parent scope.
1155 if { [info exists gdb_test_name_old] } {
1156 set gdb_test_name "$gdb_test_name_old"
1162 global errorInfo errorCode
1163 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
1164 } elseif {$code > 1} {
1165 return -code $code $string
1170 # gdb_test COMMAND PATTERN MESSAGE QUESTION RESPONSE
1171 # Send a command to gdb; test the result.
1173 # COMMAND is the command to execute, send to GDB with send_gdb. If
1174 # this is the null string no command is sent.
1175 # PATTERN is the pattern to match for a PASS, and must NOT include
1176 # the \r\n sequence immediately before the gdb prompt. This argument
1177 # may be omitted to just match the prompt, ignoring whatever output
1179 # MESSAGE is an optional message to be printed. If this is
1180 # omitted, then the pass/fail messages use the command string as the
1181 # message. (If this is the empty string, then sometimes we don't
1182 # call pass or fail at all; I don't understand this at all.)
1183 # QUESTION is a question GDB may ask in response to COMMAND, like
1185 # RESPONSE is the response to send if QUESTION appears.
1188 # 1 if the test failed,
1189 # 0 if the test passes,
1190 # -1 if there was an internal error.
1192 proc gdb_test { args } {
1194 upvar timeout timeout
1196 if [llength $args]>2 then {
1197 set message [lindex $args 2]
1199 set message [lindex $args 0]
1201 set command [lindex $args 0]
1202 set pattern [lindex $args 1]
1206 -re "\[\r\n\]*(?:$pattern)\[\r\n\]+$gdb_prompt $" {
1207 if ![string match "" $message] then {
1213 if { [llength $args] == 5 } {
1214 set question_string [lindex $args 3]
1215 set response_string [lindex $args 4]
1217 -re "(${question_string})$" {
1218 send_gdb "$response_string\n"
1224 set user_code [join $user_code]
1225 return [gdb_test_multiple $command $message $user_code]
1228 # Return 1 if version MAJOR.MINOR is at least AT_LEAST_MAJOR.AT_LEAST_MINOR.
1229 proc version_at_least { major minor at_least_major at_least_minor} {
1230 if { $major > $at_least_major } {
1232 } elseif { $major == $at_least_major \
1233 && $minor >= $at_least_minor } {
1240 # Return 1 if tcl version used is at least MAJOR.MINOR
1241 proc tcl_version_at_least { major minor } {
1243 regexp {^([0-9]+)\.([0-9]+)$} $tcl_version \
1244 dummy tcl_version_major tcl_version_minor
1245 return [version_at_least $tcl_version_major $tcl_version_minor \
1249 if { [tcl_version_at_least 8 5] == 0 } {
1250 # lrepeat was added in tcl 8.5. Only add if missing.
1251 proc lrepeat { n element } {
1252 if { [string is integer -strict $n] == 0 } {
1253 error "expected integer but got \"$n\""
1256 error "bad count \"$n\": must be integer >= 0"
1259 for {set i 0} {$i < $n} {incr i} {
1260 lappend res $element
1266 # gdb_test_no_output COMMAND MESSAGE
1267 # Send a command to GDB and verify that this command generated no output.
1269 # See gdb_test_multiple for a description of the COMMAND and MESSAGE
1270 # parameters. If MESSAGE is ommitted, then COMMAND will be used as
1271 # the message. (If MESSAGE is the empty string, then sometimes we do not
1272 # call pass or fail at all; I don't understand this at all.)
1274 proc gdb_test_no_output { args } {
1276 set command [lindex $args 0]
1277 if [llength $args]>1 then {
1278 set message [lindex $args 1]
1280 set message $command
1283 set command_regex [string_to_regexp $command]
1284 gdb_test_multiple $command $message {
1285 -re "^$command_regex\r\n$gdb_prompt $" {
1286 if ![string match "" $message] then {
1293 # Send a command and then wait for a sequence of outputs.
1294 # This is useful when the sequence is long and contains ".*", a single
1295 # regexp to match the entire output can get a timeout much easier.
1297 # COMMAND is the command to execute, send to GDB with send_gdb. If
1298 # this is the null string no command is sent.
1299 # TEST_NAME is passed to pass/fail. COMMAND is used if TEST_NAME is "".
1300 # EXPECTED_OUTPUT_LIST is a list of regexps of expected output, which are
1301 # processed in order, and all must be present in the output.
1303 # It is unnecessary to specify ".*" at the beginning or end of any regexp,
1304 # there is an implicit ".*" between each element of EXPECTED_OUTPUT_LIST.
1305 # There is also an implicit ".*" between the last regexp and the gdb prompt.
1307 # Like gdb_test and gdb_test_multiple, the output is expected to end with the
1308 # gdb prompt, which must not be specified in EXPECTED_OUTPUT_LIST.
1311 # 1 if the test failed,
1312 # 0 if the test passes,
1313 # -1 if there was an internal error.
1315 proc gdb_test_sequence { command test_name expected_output_list } {
1317 if { $test_name == "" } {
1318 set test_name $command
1320 lappend expected_output_list ""; # implicit ".*" before gdb prompt
1321 if { $command != "" } {
1322 send_gdb "$command\n"
1324 return [gdb_expect_list $test_name "$gdb_prompt $" $expected_output_list]
1328 # Test that a command gives an error. For pass or fail, return
1329 # a 1 to indicate that more tests can proceed. However a timeout
1330 # is a serious error, generates a special fail message, and causes
1331 # a 0 to be returned to indicate that more tests are likely to fail
1334 proc test_print_reject { args } {
1338 if [llength $args]==2 then {
1339 set expectthis [lindex $args 1]
1341 set expectthis "should never match this bogus string"
1343 set sendthis [lindex $args 0]
1344 if $verbose>2 then {
1345 send_user "Sending \"$sendthis\" to gdb\n"
1346 send_user "Looking to match \"$expectthis\"\n"
1348 send_gdb "$sendthis\n"
1349 #FIXME: Should add timeout as parameter.
1351 -re "A .* in expression.*\\.*$gdb_prompt $" {
1352 pass "reject $sendthis"
1355 -re "Invalid syntax in expression.*$gdb_prompt $" {
1356 pass "reject $sendthis"
1359 -re "Junk after end of expression.*$gdb_prompt $" {
1360 pass "reject $sendthis"
1363 -re "Invalid number.*$gdb_prompt $" {
1364 pass "reject $sendthis"
1367 -re "Invalid character constant.*$gdb_prompt $" {
1368 pass "reject $sendthis"
1371 -re "No symbol table is loaded.*$gdb_prompt $" {
1372 pass "reject $sendthis"
1375 -re "No symbol .* in current context.*$gdb_prompt $" {
1376 pass "reject $sendthis"
1379 -re "Unmatched single quote.*$gdb_prompt $" {
1380 pass "reject $sendthis"
1383 -re "A character constant must contain at least one character.*$gdb_prompt $" {
1384 pass "reject $sendthis"
1387 -re "$expectthis.*$gdb_prompt $" {
1388 pass "reject $sendthis"
1391 -re ".*$gdb_prompt $" {
1392 fail "reject $sendthis"
1396 fail "reject $sendthis (eof or timeout)"
1403 # Same as gdb_test, but the second parameter is not a regexp,
1404 # but a string that must match exactly.
1406 proc gdb_test_exact { args } {
1407 upvar timeout timeout
1409 set command [lindex $args 0]
1411 # This applies a special meaning to a null string pattern. Without
1412 # this, "$pattern\r\n$gdb_prompt $" will match anything, including error
1413 # messages from commands that should have no output except a new
1414 # prompt. With this, only results of a null string will match a null
1417 set pattern [lindex $args 1]
1418 if [string match $pattern ""] {
1419 set pattern [string_to_regexp [lindex $args 0]]
1421 set pattern [string_to_regexp [lindex $args 1]]
1424 # It is most natural to write the pattern argument with only
1425 # embedded \n's, especially if you are trying to avoid Tcl quoting
1426 # problems. But gdb_expect really wants to see \r\n in patterns. So
1427 # transform the pattern here. First transform \r\n back to \n, in
1428 # case some users of gdb_test_exact already do the right thing.
1429 regsub -all "\r\n" $pattern "\n" pattern
1430 regsub -all "\n" $pattern "\r\n" pattern
1431 if [llength $args]==3 then {
1432 set message [lindex $args 2]
1433 return [gdb_test $command $pattern $message]
1436 return [gdb_test $command $pattern]
1439 # Wrapper around gdb_test_multiple that looks for a list of expected
1440 # output elements, but which can appear in any order.
1441 # CMD is the gdb command.
1442 # NAME is the name of the test.
1443 # ELM_FIND_REGEXP specifies how to partition the output into elements to
1445 # ELM_EXTRACT_REGEXP specifies the part of ELM_FIND_REGEXP to compare.
1446 # RESULT_MATCH_LIST is a list of exact matches for each expected element.
1447 # All elements of RESULT_MATCH_LIST must appear for the test to pass.
1449 # A typical use of ELM_FIND_REGEXP/ELM_EXTRACT_REGEXP is to extract one line
1450 # of text per element and then strip trailing \r\n's.
1452 # gdb_test_list_exact "foo" "bar" \
1453 # "\[^\r\n\]+\[\r\n\]+" \
1456 # {expected result 1} \
1457 # {expected result 2} \
1460 proc gdb_test_list_exact { cmd name elm_find_regexp elm_extract_regexp result_match_list } {
1463 set matches [lsort $result_match_list]
1465 gdb_test_multiple $cmd $name {
1466 "$cmd\[\r\n\]" { exp_continue }
1467 -re $elm_find_regexp {
1468 set str $expect_out(0,string)
1469 verbose -log "seen: $str" 3
1470 regexp -- $elm_extract_regexp $str elm_seen
1471 verbose -log "extracted: $elm_seen" 3
1472 lappend seen $elm_seen
1475 -re "$gdb_prompt $" {
1477 foreach got [lsort $seen] have $matches {
1478 if {![string equal $got $have]} {
1483 if {[string length $failed] != 0} {
1484 fail "$name ($failed not found)"
1492 # gdb_test_stdio COMMAND INFERIOR_PATTERN GDB_PATTERN MESSAGE
1493 # Send a command to gdb; expect inferior and gdb output.
1495 # See gdb_test_multiple for a description of the COMMAND and MESSAGE
1498 # INFERIOR_PATTERN is the pattern to match against inferior output.
1500 # GDB_PATTERN is the pattern to match against gdb output, and must NOT
1501 # include the \r\n sequence immediately before the gdb prompt, nor the
1502 # prompt. The default is empty.
1504 # Both inferior and gdb patterns must match for a PASS.
1506 # If MESSAGE is ommitted, then COMMAND will be used as the message.
1509 # 1 if the test failed,
1510 # 0 if the test passes,
1511 # -1 if there was an internal error.
1514 proc gdb_test_stdio {command inferior_pattern {gdb_pattern ""} {message ""}} {
1515 global inferior_spawn_id gdb_spawn_id
1518 if {$message == ""} {
1519 set message $command
1522 set inferior_matched 0
1525 # Use an indirect spawn id list, and remove the inferior spawn id
1526 # from the expected output as soon as it matches, in case
1527 # $inferior_pattern happens to be a prefix of the resulting full
1528 # gdb pattern below (e.g., "\r\n").
1529 global gdb_test_stdio_spawn_id_list
1530 set gdb_test_stdio_spawn_id_list "$inferior_spawn_id"
1532 # Note that if $inferior_spawn_id and $gdb_spawn_id are different,
1533 # then we may see gdb's output arriving before the inferior's
1535 set res [gdb_test_multiple $command $message {
1536 -i gdb_test_stdio_spawn_id_list -re "$inferior_pattern" {
1537 set inferior_matched 1
1538 if {!$gdb_matched} {
1539 set gdb_test_stdio_spawn_id_list ""
1543 -i $gdb_spawn_id -re "$gdb_pattern\r\n$gdb_prompt $" {
1545 if {!$inferior_matched} {
1553 verbose -log "inferior_matched=$inferior_matched, gdb_matched=$gdb_matched"
1558 # get_print_expr_at_depths EXP OUTPUTS
1560 # Used for testing 'set print max-depth'. Prints the expression EXP
1561 # with 'set print max-depth' set to various depths. OUTPUTS is a list
1562 # of `n` different patterns to match at each of the depths from 0 to
1565 # This proc does one final check with the max-depth set to 'unlimited'
1566 # which is tested against the last pattern in the OUTPUTS list. The
1567 # OUTPUTS list is therefore required to match every depth from 0 to a
1568 # depth where the whole of EXP is printed with no ellipsis.
1570 # This proc leaves the 'set print max-depth' set to 'unlimited'.
1571 proc gdb_print_expr_at_depths {exp outputs} {
1572 for { set depth 0 } { $depth <= [llength $outputs] } { incr depth } {
1573 if { $depth == [llength $outputs] } {
1574 set expected_result [lindex $outputs [expr [llength $outputs] - 1]]
1575 set depth_string "unlimited"
1577 set expected_result [lindex $outputs $depth]
1578 set depth_string $depth
1581 with_test_prefix "exp='$exp': depth=${depth_string}" {
1582 gdb_test_no_output "set print max-depth ${depth_string}"
1583 gdb_test "p $exp" "$expected_result"
1590 # Issue a PASS and return true if evaluating CONDITION in the caller's
1591 # frame returns true, and issue a FAIL and return false otherwise.
1592 # MESSAGE is the pass/fail message to be printed. If MESSAGE is
1593 # omitted or is empty, then the pass/fail messages use the condition
1594 # string as the message.
1596 proc gdb_assert { condition {message ""} } {
1597 if { $message == ""} {
1598 set message $condition
1601 set res [uplevel 1 expr $condition]
1610 proc gdb_reinitialize_dir { subdir } {
1613 if [is_remote host] {
1618 -re "Reinitialize source path to empty.*y or n. " {
1619 send_gdb "y\n" answer
1621 -re "Source directories searched.*$gdb_prompt $" {
1622 send_gdb "dir $subdir\n"
1624 -re "Source directories searched.*$gdb_prompt $" {
1625 verbose "Dir set to $subdir"
1627 -re "$gdb_prompt $" {
1628 perror "Dir \"$subdir\" failed."
1632 -re "$gdb_prompt $" {
1633 perror "Dir \"$subdir\" failed."
1637 -re "$gdb_prompt $" {
1638 perror "Dir \"$subdir\" failed."
1644 # gdb_exit -- exit the GDB, killing the target program if necessary
1646 proc default_gdb_exit {} {
1648 global INTERNAL_GDBFLAGS GDBFLAGS
1649 global gdb_spawn_id inferior_spawn_id
1650 global inotify_log_file
1652 gdb_stop_suppressing_tests
1654 if ![info exists gdb_spawn_id] {
1658 verbose "Quitting $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
1660 if {[info exists inotify_log_file] && [file exists $inotify_log_file]} {
1661 set fd [open $inotify_log_file]
1662 set data [read -nonewline $fd]
1665 if {[string compare $data ""] != 0} {
1666 warning "parallel-unsafe file creations noticed"
1669 set fd [open $inotify_log_file w]
1674 if { [is_remote host] && [board_info host exists fileid] } {
1678 send_gdb "y\n" answer
1681 -re "DOSEXIT code" { }
1686 if ![is_remote host] {
1690 unset inferior_spawn_id
1693 # Load a file into the debugger.
1694 # The return value is 0 for success, -1 for failure.
1696 # This procedure also set the global variable GDB_FILE_CMD_DEBUG_INFO
1697 # to one of these values:
1699 # debug file was loaded successfully and has debug information
1700 # nodebug file was loaded successfully and has no debug information
1701 # lzma file was loaded, .gnu_debugdata found, but no LZMA support
1703 # fail file was not loaded
1705 # I tried returning this information as part of the return value,
1706 # but ran into a mess because of the many re-implementations of
1707 # gdb_load in config/*.exp.
1709 # TODO: gdb.base/sepdebug.exp and gdb.stabs/weird.exp might be able to use
1710 # this if they can get more information set.
1712 proc gdb_file_cmd { arg } {
1715 global last_loaded_file
1717 # Save this for the benefit of gdbserver-support.exp.
1718 set last_loaded_file $arg
1720 # Set whether debug info was found.
1721 # Default to "fail".
1722 global gdb_file_cmd_debug_info
1723 set gdb_file_cmd_debug_info "fail"
1725 if [is_remote host] {
1726 set arg [remote_download host $arg]
1728 perror "download failed"
1733 # The file command used to kill the remote target. For the benefit
1734 # of the testsuite, preserve this behavior. Mark as optional so it doesn't
1735 # get written to the stdin log.
1736 send_gdb "kill\n" optional
1738 -re "Kill the program being debugged. .y or n. $" {
1739 send_gdb "y\n" answer
1740 verbose "\t\tKilling previous program being debugged"
1743 -re "$gdb_prompt $" {
1748 send_gdb "file $arg\n"
1750 -re "Reading symbols from.*LZMA support was disabled.*$gdb_prompt $" {
1751 verbose "\t\tLoaded $arg into $GDB; .gnu_debugdata found but no LZMA available"
1752 set gdb_file_cmd_debug_info "lzma"
1755 -re "Reading symbols from.*no debugging symbols found.*$gdb_prompt $" {
1756 verbose "\t\tLoaded $arg into $GDB with no debugging symbols"
1757 set gdb_file_cmd_debug_info "nodebug"
1760 -re "Reading symbols from.*$gdb_prompt $" {
1761 verbose "\t\tLoaded $arg into $GDB"
1762 set gdb_file_cmd_debug_info "debug"
1765 -re "Load new symbol table from \".*\".*y or n. $" {
1766 send_gdb "y\n" answer
1768 -re "Reading symbols from.*$gdb_prompt $" {
1769 verbose "\t\tLoaded $arg with new symbol table into $GDB"
1770 set gdb_file_cmd_debug_info "debug"
1774 perror "Couldn't load $arg, other program already loaded (timeout)."
1778 perror "Couldn't load $arg, other program already loaded (eof)."
1783 -re "No such file or directory.*$gdb_prompt $" {
1784 perror "($arg) No such file or directory"
1787 -re "A problem internal to GDB has been detected" {
1788 fail "($arg) (GDB internal error)"
1789 gdb_internal_error_resync
1792 -re "$gdb_prompt $" {
1793 perror "Couldn't load $arg into $GDB."
1797 perror "Couldn't load $arg into $GDB (timeout)."
1801 # This is an attempt to detect a core dump, but seems not to
1802 # work. Perhaps we need to match .* followed by eof, in which
1803 # gdb_expect does not seem to have a way to do that.
1804 perror "Couldn't load $arg into $GDB (eof)."
1810 # Default gdb_spawn procedure.
1812 proc default_gdb_spawn { } {
1815 global INTERNAL_GDBFLAGS GDBFLAGS
1818 gdb_stop_suppressing_tests
1820 # Set the default value, it may be overriden later by specific testfile.
1822 # Use `set_board_info use_gdb_stub' for the board file to flag the inferior
1823 # is already started after connecting and run/attach are not supported.
1824 # This is used for the "remote" protocol. After GDB starts you should
1825 # check global $use_gdb_stub instead of the board as the testfile may force
1826 # a specific different target protocol itself.
1827 set use_gdb_stub [target_info exists use_gdb_stub]
1829 verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
1830 gdb_write_cmd_file "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
1832 if [info exists gdb_spawn_id] {
1836 if ![is_remote host] {
1837 if { [which $GDB] == 0 } then {
1838 perror "$GDB does not exist."
1842 set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]
1843 if { $res < 0 || $res == "" } {
1844 perror "Spawning $GDB failed."
1848 set gdb_spawn_id $res
1852 # Default gdb_start procedure.
1854 proc default_gdb_start { } {
1857 global inferior_spawn_id
1859 if [info exists gdb_spawn_id] {
1863 # Keep track of the number of times GDB has been launched.
1864 global gdb_instances
1874 # Default to assuming inferior I/O is done on GDB's terminal.
1875 if {![info exists inferior_spawn_id]} {
1876 set inferior_spawn_id $gdb_spawn_id
1879 # When running over NFS, particularly if running many simultaneous
1880 # tests on different hosts all using the same server, things can
1881 # get really slow. Give gdb at least 3 minutes to start up.
1883 -re "\[\r\n\]$gdb_prompt $" {
1884 verbose "GDB initialized."
1886 -re "$gdb_prompt $" {
1887 perror "GDB never initialized."
1892 perror "(timeout) GDB never initialized after 10 seconds."
1899 # force the height to "unlimited", so no pagers get used
1901 send_gdb "set height 0\n"
1903 -re "$gdb_prompt $" {
1904 verbose "Setting height to 0." 2
1907 warning "Couldn't set the height to 0"
1910 # force the width to "unlimited", so no wraparound occurs
1911 send_gdb "set width 0\n"
1913 -re "$gdb_prompt $" {
1914 verbose "Setting width to 0." 2
1917 warning "Couldn't set the width to 0."
1925 # Utility procedure to give user control of the gdb prompt in a script. It is
1926 # meant to be used for debugging test cases, and should not be left in the
1929 proc gdb_interact { } {
1931 set spawn_id $gdb_spawn_id
1933 send_user "+------------------------------------------+\n"
1934 send_user "| Script interrupted, you can now interact |\n"
1935 send_user "| with by gdb. Type >>> to continue. |\n"
1936 send_user "+------------------------------------------+\n"
1943 # Examine the output of compilation to determine whether compilation
1944 # failed or not. If it failed determine whether it is due to missing
1945 # compiler or due to compiler error. Report pass, fail or unsupported
1948 proc gdb_compile_test {src output} {
1949 if { $output == "" } {
1950 pass "compilation [file tail $src]"
1951 } elseif { [regexp {^[a-zA-Z_0-9]+: Can't find [^ ]+\.$} $output] } {
1952 unsupported "compilation [file tail $src]"
1953 } elseif { [regexp {.*: command not found[\r|\n]*$} $output] } {
1954 unsupported "compilation [file tail $src]"
1955 } elseif { [regexp {.*: [^\r\n]*compiler not installed[^\r\n]*[\r|\n]*$} $output] } {
1956 unsupported "compilation [file tail $src]"
1958 verbose -log "compilation failed: $output" 2
1959 fail "compilation [file tail $src]"
1963 # Return a 1 for configurations for which we don't even want to try to
1966 proc skip_cplus_tests {} {
1967 if { [istarget "h8300-*-*"] } {
1971 # The C++ IO streams are too large for HC11/HC12 and are thus not
1972 # available. The gdb C++ tests use them and don't compile.
1973 if { [istarget "m6811-*-*"] } {
1976 if { [istarget "m6812-*-*"] } {
1982 # Return a 1 for configurations for which don't have both C++ and the STL.
1984 proc skip_stl_tests {} {
1985 # Symbian supports the C++ language, but the STL is missing
1986 # (both headers and libraries).
1987 if { [istarget "arm*-*-symbianelf*"] } {
1991 return [skip_cplus_tests]
1994 # Return a 1 if I don't even want to try to test FORTRAN.
1996 proc skip_fortran_tests {} {
2000 # Return a 1 if I don't even want to try to test ada.
2002 proc skip_ada_tests {} {
2006 # Return a 1 if I don't even want to try to test GO.
2008 proc skip_go_tests {} {
2012 # Return a 1 if I don't even want to try to test D.
2014 proc skip_d_tests {} {
2018 # Return 1 to skip Rust tests, 0 to try them.
2019 proc skip_rust_tests {} {
2020 return [expr {![isnative]}]
2023 # Return a 1 for configurations that do not support Python scripting.
2024 # PROMPT_REGEXP is the expected prompt.
2026 proc skip_python_tests_prompt { prompt_regexp } {
2027 global gdb_py_is_py3k
2029 gdb_test_multiple "python print ('test')" "verify python support" \
2030 -prompt "$prompt_regexp" {
2031 -re "not supported.*$prompt_regexp" {
2032 unsupported "Python support is disabled."
2035 -re "$prompt_regexp" {}
2038 gdb_test_multiple "python print (sys.version_info\[0\])" "check if python 3" \
2039 -prompt "$prompt_regexp" {
2040 -re "3.*$prompt_regexp" {
2041 set gdb_py_is_py3k 1
2043 -re ".*$prompt_regexp" {
2044 set gdb_py_is_py3k 0
2051 # Return a 1 for configurations that do not support Python scripting.
2052 # Note: This also sets various globals that specify which version of Python
2053 # is in use. See skip_python_tests_prompt.
2055 proc skip_python_tests {} {
2057 return [skip_python_tests_prompt "$gdb_prompt $"]
2060 # Return a 1 if we should skip shared library tests.
2062 proc skip_shlib_tests {} {
2063 # Run the shared library tests on native systems.
2068 # An abbreviated list of remote targets where we should be able to
2069 # run shared library tests.
2070 if {([istarget *-*-linux*]
2071 || [istarget *-*-*bsd*]
2072 || [istarget *-*-solaris2*]
2073 || [istarget arm*-*-symbianelf*]
2074 || [istarget *-*-mingw*]
2075 || [istarget *-*-cygwin*]
2076 || [istarget *-*-pe*])} {
2083 # Return 1 if we should skip tui related tests.
2085 proc skip_tui_tests {} {
2088 gdb_test_multiple "help layout" "verify tui support" {
2089 -re "Undefined command: \"layout\".*$gdb_prompt $" {
2092 -re "$gdb_prompt $" {
2099 # Test files shall make sure all the test result lines in gdb.sum are
2100 # unique in a test run, so that comparing the gdb.sum files of two
2101 # test runs gives correct results. Test files that exercise
2102 # variations of the same tests more than once, shall prefix the
2103 # different test invocations with different identifying strings in
2104 # order to make them unique.
2106 # About test prefixes:
2108 # $pf_prefix is the string that dejagnu prints after the result (FAIL,
2109 # PASS, etc.), and before the test message/name in gdb.sum. E.g., the
2110 # underlined substring in
2112 # PASS: gdb.base/mytest.exp: some test
2113 # ^^^^^^^^^^^^^^^^^^^^
2117 # The easiest way to adjust the test prefix is to append a test
2118 # variation prefix to the $pf_prefix, using the with_test_prefix
2121 # proc do_tests {} {
2122 # gdb_test ... ... "test foo"
2123 # gdb_test ... ... "test bar"
2125 # with_test_prefix "subvariation a" {
2126 # gdb_test ... ... "test x"
2129 # with_test_prefix "subvariation b" {
2130 # gdb_test ... ... "test x"
2134 # with_test_prefix "variation1" {
2135 # ...do setup for variation 1...
2139 # with_test_prefix "variation2" {
2140 # ...do setup for variation 2...
2146 # PASS: gdb.base/mytest.exp: variation1: test foo
2147 # PASS: gdb.base/mytest.exp: variation1: test bar
2148 # PASS: gdb.base/mytest.exp: variation1: subvariation a: test x
2149 # PASS: gdb.base/mytest.exp: variation1: subvariation b: test x
2150 # PASS: gdb.base/mytest.exp: variation2: test foo
2151 # PASS: gdb.base/mytest.exp: variation2: test bar
2152 # PASS: gdb.base/mytest.exp: variation2: subvariation a: test x
2153 # PASS: gdb.base/mytest.exp: variation2: subvariation b: test x
2155 # If for some reason more flexibility is necessary, one can also
2156 # manipulate the pf_prefix global directly, treating it as a string.
2160 # set saved_pf_prefix
2161 # append pf_prefix "${foo}: bar"
2162 # ... actual tests ...
2163 # set pf_prefix $saved_pf_prefix
2166 # Run BODY in the context of the caller, with the current test prefix
2167 # (pf_prefix) appended with one space, then PREFIX, and then a colon.
2168 # Returns the result of BODY.
2170 proc with_test_prefix { prefix body } {
2173 set saved $pf_prefix
2174 append pf_prefix " " $prefix ":"
2175 set code [catch {uplevel 1 $body} result]
2176 set pf_prefix $saved
2179 global errorInfo errorCode
2180 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2182 return -code $code $result
2186 # Wrapper for foreach that calls with_test_prefix on each iteration,
2187 # including the iterator's name and current value in the prefix.
2189 proc foreach_with_prefix {var list body} {
2191 foreach myvar $list {
2192 with_test_prefix "$var=$myvar" {
2193 set code [catch {uplevel 1 $body} result]
2197 global errorInfo errorCode
2198 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2199 } elseif {$code == 3} {
2201 } elseif {$code == 2} {
2202 return -code $code $result
2207 # Like TCL's native proc, but defines a procedure that wraps its body
2208 # within 'with_test_prefix "$proc_name" { ... }'.
2209 proc proc_with_prefix {name arguments body} {
2210 # Define the advertised proc.
2211 proc $name $arguments [list with_test_prefix $name $body]
2215 # Run BODY in the context of the caller. After BODY is run, the variables
2216 # listed in VARS will be reset to the values they had before BODY was run.
2218 # This is useful for providing a scope in which it is safe to temporarily
2219 # modify global variables, e.g.
2221 # global INTERNAL_GDBFLAGS
2224 # set foo GDBHISTSIZE
2226 # save_vars { INTERNAL_GDBFLAGS env($foo) env(HOME) } {
2227 # append INTERNAL_GDBFLAGS " -nx"
2228 # unset -nocomplain env(GDBHISTSIZE)
2233 # Here, although INTERNAL_GDBFLAGS, env(GDBHISTSIZE) and env(HOME) may be
2234 # modified inside BODY, this proc guarantees that the modifications will be
2235 # undone after BODY finishes executing.
2237 proc save_vars { vars body } {
2238 array set saved_scalars { }
2239 array set saved_arrays { }
2243 # First evaluate VAR in the context of the caller in case the variable
2244 # name may be a not-yet-interpolated string like env($foo)
2245 set var [uplevel 1 list $var]
2247 if [uplevel 1 [list info exists $var]] {
2248 if [uplevel 1 [list array exists $var]] {
2249 set saved_arrays($var) [uplevel 1 [list array get $var]]
2251 set saved_scalars($var) [uplevel 1 [list set $var]]
2254 lappend unset_vars $var
2258 set code [catch {uplevel 1 $body} result]
2260 foreach {var value} [array get saved_scalars] {
2261 uplevel 1 [list set $var $value]
2264 foreach {var value} [array get saved_arrays] {
2265 uplevel 1 [list unset $var]
2266 uplevel 1 [list array set $var $value]
2269 foreach var $unset_vars {
2270 uplevel 1 [list unset -nocomplain $var]
2274 global errorInfo errorCode
2275 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2277 return -code $code $result
2281 # Run tests in BODY with the current working directory (CWD) set to
2282 # DIR. When BODY is finished, restore the original CWD. Return the
2285 # This procedure doesn't check if DIR is a valid directory, so you
2286 # have to make sure of that.
2288 proc with_cwd { dir body } {
2290 verbose -log "Switching to directory $dir (saved CWD: $saved_dir)."
2293 set code [catch {uplevel 1 $body} result]
2295 verbose -log "Switching back to $saved_dir."
2299 global errorInfo errorCode
2300 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2302 return -code $code $result
2306 # Run tests in BODY with GDB prompt and variable $gdb_prompt set to
2307 # PROMPT. When BODY is finished, restore GDB prompt and variable
2309 # Returns the result of BODY.
2313 # 1) If you want to use, for example, "(foo)" as the prompt you must pass it
2314 # as "(foo)", and not the regexp form "\(foo\)" (expressed as "\\(foo\\)" in
2315 # TCL). PROMPT is internally converted to a suitable regexp for matching.
2316 # We do the conversion from "(foo)" to "\(foo\)" here for a few reasons:
2317 # a) It's more intuitive for callers to pass the plain text form.
2318 # b) We need two forms of the prompt:
2319 # - a regexp to use in output matching,
2320 # - a value to pass to the "set prompt" command.
2321 # c) It's easier to convert the plain text form to its regexp form.
2323 # 2) Don't add a trailing space, we do that here.
2325 proc with_gdb_prompt { prompt body } {
2328 # Convert "(foo)" to "\(foo\)".
2329 # We don't use string_to_regexp because while it works today it's not
2330 # clear it will work tomorrow: the value we need must work as both a
2331 # regexp *and* as the argument to the "set prompt" command, at least until
2332 # we start recording both forms separately instead of just $gdb_prompt.
2333 # The testsuite is pretty-much hardwired to interpret $gdb_prompt as the
2335 regsub -all {[]*+.|()^$\[\\]} $prompt {\\&} prompt
2337 set saved $gdb_prompt
2339 verbose -log "Setting gdb prompt to \"$prompt \"."
2340 set gdb_prompt $prompt
2341 gdb_test_no_output "set prompt $prompt " ""
2343 set code [catch {uplevel 1 $body} result]
2345 verbose -log "Restoring gdb prompt to \"$saved \"."
2346 set gdb_prompt $saved
2347 gdb_test_no_output "set prompt $saved " ""
2350 global errorInfo errorCode
2351 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2353 return -code $code $result
2357 # Run tests in BODY with target-charset setting to TARGET_CHARSET. When
2358 # BODY is finished, restore target-charset.
2360 proc with_target_charset { target_charset body } {
2364 gdb_test_multiple "show target-charset" "" {
2365 -re "The target character set is \".*; currently (.*)\"\..*$gdb_prompt " {
2366 set saved $expect_out(1,string)
2368 -re "The target character set is \"(.*)\".*$gdb_prompt " {
2369 set saved $expect_out(1,string)
2371 -re ".*$gdb_prompt " {
2372 fail "get target-charset"
2376 gdb_test_no_output "set target-charset $target_charset" ""
2378 set code [catch {uplevel 1 $body} result]
2380 gdb_test_no_output "set target-charset $saved" ""
2383 global errorInfo errorCode
2384 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2386 return -code $code $result
2390 # Switch the default spawn id to SPAWN_ID, so that gdb_test,
2391 # mi_gdb_test etc. default to using it.
2393 proc switch_gdb_spawn_id {spawn_id} {
2395 global board board_info
2397 set gdb_spawn_id $spawn_id
2398 set board [host_info name]
2399 set board_info($board,fileid) $spawn_id
2402 # Clear the default spawn id.
2404 proc clear_gdb_spawn_id {} {
2406 global board board_info
2408 unset -nocomplain gdb_spawn_id
2409 set board [host_info name]
2410 unset -nocomplain board_info($board,fileid)
2413 # Run BODY with SPAWN_ID as current spawn id.
2415 proc with_spawn_id { spawn_id body } {
2418 if [info exists gdb_spawn_id] {
2419 set saved_spawn_id $gdb_spawn_id
2422 switch_gdb_spawn_id $spawn_id
2424 set code [catch {uplevel 1 $body} result]
2426 if [info exists saved_spawn_id] {
2427 switch_gdb_spawn_id $saved_spawn_id
2433 global errorInfo errorCode
2434 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2436 return -code $code $result
2440 # Select the largest timeout from all the timeouts:
2441 # - the local "timeout" variable of the scope two levels above,
2442 # - the global "timeout" variable,
2443 # - the board variable "gdb,timeout".
2445 proc get_largest_timeout {} {
2446 upvar #0 timeout gtimeout
2447 upvar 2 timeout timeout
2450 if [info exists timeout] {
2453 if { [info exists gtimeout] && $gtimeout > $tmt } {
2456 if { [target_info exists gdb,timeout]
2457 && [target_info gdb,timeout] > $tmt } {
2458 set tmt [target_info gdb,timeout]
2468 # Run tests in BODY with timeout increased by factor of FACTOR. When
2469 # BODY is finished, restore timeout.
2471 proc with_timeout_factor { factor body } {
2474 set savedtimeout $timeout
2476 set timeout [expr [get_largest_timeout] * $factor]
2477 set code [catch {uplevel 1 $body} result]
2479 set timeout $savedtimeout
2481 global errorInfo errorCode
2482 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
2484 return -code $code $result
2488 # Run BODY with timeout factor FACTOR if check-read1 is used.
2490 proc with_read1_timeout_factor { factor body } {
2491 if { [info exists ::env(READ1)] == 1 && $::env(READ1) == 1 } {
2492 # Use timeout factor
2494 # Reset timeout factor
2497 return [uplevel [list with_timeout_factor $factor $body]]
2500 # Return 1 if _Complex types are supported, otherwise, return 0.
2502 gdb_caching_proc support_complex_tests {
2504 if { [gdb_skip_float_test] } {
2505 # If floating point is not supported, _Complex is not
2510 # Compile a test program containing _Complex types.
2512 return [gdb_can_simple_compile complex {
2516 _Complex long double cld;
2522 # Return 1 if compiling go is supported.
2523 gdb_caching_proc support_go_compile {
2525 return [gdb_can_simple_compile go-hello {
2529 fmt.Println("hello world")
2534 # Return 1 if GDB can get a type for siginfo from the target, otherwise
2537 proc supports_get_siginfo_type {} {
2538 if { [istarget "*-*-linux*"] } {
2545 # Return 1 if the target supports hardware single stepping.
2547 proc can_hardware_single_step {} {
2549 if { [istarget "arm*-*-*"] || [istarget "mips*-*-*"]
2550 || [istarget "tic6x-*-*"] || [istarget "sparc*-*-linux*"]
2551 || [istarget "nios2-*-*"] } {
2558 # Return 1 if target hardware or OS supports single stepping to signal
2559 # handler, otherwise, return 0.
2561 proc can_single_step_to_signal_handler {} {
2562 # Targets don't have hardware single step. On these targets, when
2563 # a signal is delivered during software single step, gdb is unable
2564 # to determine the next instruction addresses, because start of signal
2565 # handler is one of them.
2566 return [can_hardware_single_step]
2569 # Return 1 if target supports process record, otherwise return 0.
2571 proc supports_process_record {} {
2573 if [target_info exists gdb,use_precord] {
2574 return [target_info gdb,use_precord]
2577 if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
2578 || [istarget "i\[34567\]86-*-linux*"]
2579 || [istarget "aarch64*-*-linux*"]
2580 || [istarget "powerpc*-*-linux*"]
2581 || [istarget "s390*-*-linux*"] } {
2588 # Return 1 if target supports reverse debugging, otherwise return 0.
2590 proc supports_reverse {} {
2592 if [target_info exists gdb,can_reverse] {
2593 return [target_info gdb,can_reverse]
2596 if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
2597 || [istarget "i\[34567\]86-*-linux*"]
2598 || [istarget "aarch64*-*-linux*"]
2599 || [istarget "powerpc*-*-linux*"]
2600 || [istarget "s390*-*-linux*"] } {
2607 # Return 1 if readline library is used.
2609 proc readline_is_used { } {
2612 gdb_test_multiple "show editing" "" {
2613 -re ".*Editing of command lines as they are typed is on\..*$gdb_prompt $" {
2616 -re ".*$gdb_prompt $" {
2622 # Return 1 if target is ELF.
2623 gdb_caching_proc is_elf_target {
2624 set me "is_elf_target"
2626 set src { int foo () {return 0;} }
2627 if {![gdb_simple_compile elf_target $src]} {
2631 set fp_obj [open $obj "r"]
2632 fconfigure $fp_obj -translation binary
2633 set data [read $fp_obj]
2638 set ELFMAG "\u007FELF"
2640 if {[string compare -length 4 $data $ELFMAG] != 0} {
2641 verbose "$me: returning 0" 2
2645 verbose "$me: returning 1" 2
2649 # Return 1 if the memory at address zero is readable.
2651 gdb_caching_proc is_address_zero_readable {
2655 gdb_test_multiple "x 0" "" {
2656 -re "Cannot access memory at address 0x0.*$gdb_prompt $" {
2659 -re ".*$gdb_prompt $" {
2667 # Produce source file NAME and write SOURCES into it.
2669 proc gdb_produce_source { name sources } {
2671 set f [open $name "w"]
2677 # Return 1 if target is ILP32.
2678 # This cannot be decided simply from looking at the target string,
2679 # as it might depend on externally passed compiler options like -m64.
2680 gdb_caching_proc is_ilp32_target {
2681 return [gdb_can_simple_compile is_ilp32_target {
2682 int dummy[sizeof (int) == 4
2683 && sizeof (void *) == 4
2684 && sizeof (long) == 4 ? 1 : -1];
2688 # Return 1 if target is LP64.
2689 # This cannot be decided simply from looking at the target string,
2690 # as it might depend on externally passed compiler options like -m64.
2691 gdb_caching_proc is_lp64_target {
2692 return [gdb_can_simple_compile is_lp64_target {
2693 int dummy[sizeof (int) == 4
2694 && sizeof (void *) == 8
2695 && sizeof (long) == 8 ? 1 : -1];
2699 # Return 1 if target has 64 bit addresses.
2700 # This cannot be decided simply from looking at the target string,
2701 # as it might depend on externally passed compiler options like -m64.
2702 gdb_caching_proc is_64_target {
2703 return [gdb_can_simple_compile is_64_target {
2704 int function(void) { return 3; }
2705 int dummy[sizeof (&function) == 8 ? 1 : -1];
2709 # Return 1 if target has x86_64 registers - either amd64 or x32.
2710 # x32 target identifies as x86_64-*-linux*, therefore it cannot be determined
2711 # just from the target string.
2712 gdb_caching_proc is_amd64_regs_target {
2713 if {![istarget "x86_64-*-*"] && ![istarget "i?86-*"]} {
2717 return [gdb_can_simple_compile is_amd64_regs_target {
2727 # Return 1 if this target is an x86 or x86-64 with -m32.
2728 proc is_x86_like_target {} {
2729 if {![istarget "x86_64-*-*"] && ![istarget i?86-*]} {
2732 return [expr [is_ilp32_target] && ![is_amd64_regs_target]]
2735 # Return 1 if this target is an arm or aarch32 on aarch64.
2737 gdb_caching_proc is_aarch32_target {
2738 if { [istarget "arm*-*-*"] } {
2742 if { ![istarget "aarch64*-*-*"] } {
2749 lappend list "\tmov $reg, $reg"
2752 return [gdb_can_simple_compile aarch32 [join $list \n]]
2755 # Return 1 if this target is an aarch64, either lp64 or ilp32.
2757 proc is_aarch64_target {} {
2758 if { ![istarget "aarch64*-*-*"] } {
2762 return [expr ![is_aarch32_target]]
2765 # Return 1 if displaced stepping is supported on target, otherwise, return 0.
2766 proc support_displaced_stepping {} {
2768 if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"]
2769 || [istarget "arm*-*-linux*"] || [istarget "powerpc-*-linux*"]
2770 || [istarget "powerpc64-*-linux*"] || [istarget "s390*-*-*"]
2771 || [istarget "aarch64*-*-linux*"] } {
2778 # Run a test on the target to see if it supports vmx hardware. Return 0 if so,
2779 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2781 gdb_caching_proc skip_altivec_tests {
2782 global srcdir subdir gdb_prompt inferior_exited_re
2784 set me "skip_altivec_tests"
2786 # Some simulators are known to not support VMX instructions.
2787 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
2788 verbose "$me: target known to not support VMX, returning 1" 2
2792 # Make sure we have a compiler that understands altivec.
2793 if [get_compiler_info] {
2794 warning "Could not get compiler info"
2797 if [test_compiler_info gcc*] {
2798 set compile_flags "additional_flags=-maltivec"
2799 } elseif [test_compiler_info xlc*] {
2800 set compile_flags "additional_flags=-qaltivec"
2802 verbose "Could not compile with altivec support, returning 1" 2
2806 # Compile a test program containing VMX instructions.
2810 asm volatile ("vor v0,v0,v0");
2812 asm volatile ("vor 0,0,0");
2817 if {![gdb_simple_compile $me $src executable $compile_flags]} {
2821 # Compilation succeeded so now run it via gdb.
2825 gdb_reinitialize_dir $srcdir/$subdir
2829 -re ".*Illegal instruction.*${gdb_prompt} $" {
2830 verbose -log "\n$me altivec hardware not detected"
2831 set skip_vmx_tests 1
2833 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
2834 verbose -log "\n$me: altivec hardware detected"
2835 set skip_vmx_tests 0
2838 warning "\n$me: default case taken"
2839 set skip_vmx_tests 1
2843 remote_file build delete $obj
2845 verbose "$me: returning $skip_vmx_tests" 2
2846 return $skip_vmx_tests
2849 # Run a test on the target to see if it supports vmx hardware. Return 0 if so,
2850 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2852 gdb_caching_proc skip_vsx_tests {
2853 global srcdir subdir gdb_prompt inferior_exited_re
2855 set me "skip_vsx_tests"
2857 # Some simulators are known to not support Altivec instructions, so
2858 # they won't support VSX instructions as well.
2859 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
2860 verbose "$me: target known to not support VSX, returning 1" 2
2864 # Make sure we have a compiler that understands altivec.
2865 if [get_compiler_info] {
2866 warning "Could not get compiler info"
2869 if [test_compiler_info gcc*] {
2870 set compile_flags "additional_flags=-mvsx"
2871 } elseif [test_compiler_info xlc*] {
2872 set compile_flags "additional_flags=-qasm=gcc"
2874 verbose "Could not compile with vsx support, returning 1" 2
2878 # Compile a test program containing VSX instructions.
2881 double a[2] = { 1.0, 2.0 };
2883 asm volatile ("lxvd2x v0,v0,%[addr]" : : [addr] "r" (a));
2885 asm volatile ("lxvd2x 0,0,%[addr]" : : [addr] "r" (a));
2890 if {![gdb_simple_compile $me $src executable $compile_flags]} {
2894 # No error message, compilation succeeded so now run it via gdb.
2898 gdb_reinitialize_dir $srcdir/$subdir
2902 -re ".*Illegal instruction.*${gdb_prompt} $" {
2903 verbose -log "\n$me VSX hardware not detected"
2904 set skip_vsx_tests 1
2906 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
2907 verbose -log "\n$me: VSX hardware detected"
2908 set skip_vsx_tests 0
2911 warning "\n$me: default case taken"
2912 set skip_vsx_tests 1
2916 remote_file build delete $obj
2918 verbose "$me: returning $skip_vsx_tests" 2
2919 return $skip_vsx_tests
2922 # Run a test on the target to see if it supports TSX hardware. Return 0 if so,
2923 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2925 gdb_caching_proc skip_tsx_tests {
2926 global srcdir subdir gdb_prompt inferior_exited_re
2928 set me "skip_tsx_tests"
2930 # Compile a test program.
2933 asm volatile ("xbegin .L0");
2934 asm volatile ("xend");
2935 asm volatile (".L0: nop");
2939 if {![gdb_simple_compile $me $src executable]} {
2943 # No error message, compilation succeeded so now run it via gdb.
2947 gdb_reinitialize_dir $srcdir/$subdir
2951 -re ".*Illegal instruction.*${gdb_prompt} $" {
2952 verbose -log "$me: TSX hardware not detected."
2953 set skip_tsx_tests 1
2955 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
2956 verbose -log "$me: TSX hardware detected."
2957 set skip_tsx_tests 0
2960 warning "\n$me: default case taken."
2961 set skip_tsx_tests 1
2965 remote_file build delete $obj
2967 verbose "$me: returning $skip_tsx_tests" 2
2968 return $skip_tsx_tests
2971 # Run a test on the target to see if it supports btrace hardware. Return 0 if so,
2972 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2974 gdb_caching_proc skip_btrace_tests {
2975 global srcdir subdir gdb_prompt inferior_exited_re
2977 set me "skip_btrace_tests"
2978 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
2979 verbose "$me: target does not support btrace, returning 1" 2
2983 # Compile a test program.
2984 set src { int main() { return 0; } }
2985 if {![gdb_simple_compile $me $src executable]} {
2989 # No error message, compilation succeeded so now run it via gdb.
2993 gdb_reinitialize_dir $srcdir/$subdir
2998 # In case of an unexpected output, we return 2 as a fail value.
2999 set skip_btrace_tests 2
3000 gdb_test_multiple "record btrace" "check btrace support" {
3001 -re "You can't do that when your target is.*\r\n$gdb_prompt $" {
3002 set skip_btrace_tests 1
3004 -re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
3005 set skip_btrace_tests 1
3007 -re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
3008 set skip_btrace_tests 1
3010 -re "^record btrace\r\n$gdb_prompt $" {
3011 set skip_btrace_tests 0
3015 remote_file build delete $obj
3017 verbose "$me: returning $skip_btrace_tests" 2
3018 return $skip_btrace_tests
3021 # Run a test on the target to see if it supports btrace pt hardware.
3022 # Return 0 if so, 1 if it does not. Based on 'check_vmx_hw_available'
3023 # from the GCC testsuite.
3025 gdb_caching_proc skip_btrace_pt_tests {
3026 global srcdir subdir gdb_prompt inferior_exited_re
3028 set me "skip_btrace_tests"
3029 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
3030 verbose "$me: target does not support btrace, returning 1" 2
3034 # Compile a test program.
3035 set src { int main() { return 0; } }
3036 if {![gdb_simple_compile $me $src executable]} {
3040 # No error message, compilation succeeded so now run it via gdb.
3044 gdb_reinitialize_dir $srcdir/$subdir
3049 # In case of an unexpected output, we return 2 as a fail value.
3050 set skip_btrace_tests 2
3051 gdb_test_multiple "record btrace pt" "check btrace pt support" {
3052 -re "You can't do that when your target is.*\r\n$gdb_prompt $" {
3053 set skip_btrace_tests 1
3055 -re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
3056 set skip_btrace_tests 1
3058 -re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
3059 set skip_btrace_tests 1
3061 -re "support was disabled at compile time.*\r\n$gdb_prompt $" {
3062 set skip_btrace_tests 1
3064 -re "^record btrace pt\r\n$gdb_prompt $" {
3065 set skip_btrace_tests 0
3069 remote_file build delete $obj
3071 verbose "$me: returning $skip_btrace_tests" 2
3072 return $skip_btrace_tests
3075 # Run a test on the target to see if it supports Aarch64 SVE hardware.
3076 # Return 0 if so, 1 if it does not. Note this causes a restart of GDB.
3078 gdb_caching_proc skip_aarch64_sve_tests {
3079 global srcdir subdir gdb_prompt inferior_exited_re
3081 set me "skip_aarch64_sve_tests"
3083 if { ![is_aarch64_target]} {
3087 set compile_flags "{additional_flags=-march=armv8-a+sve}"
3089 # Compile a test program containing SVE instructions.
3092 asm volatile ("ptrue p0.b");
3096 if {![gdb_simple_compile $me $src executable $compile_flags]} {
3100 # Compilation succeeded so now run it via gdb.
3104 -re ".*Illegal instruction.*${gdb_prompt} $" {
3105 verbose -log "\n$me sve hardware not detected"
3106 set skip_sve_tests 1
3108 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
3109 verbose -log "\n$me: sve hardware detected"
3110 set skip_sve_tests 0
3113 warning "\n$me: default case taken"
3114 set skip_sve_tests 1
3118 remote_file build delete $obj
3120 verbose "$me: returning $skip_sve_tests" 2
3121 return $skip_sve_tests
3125 # A helper that compiles a test case to see if __int128 is supported.
3126 proc gdb_int128_helper {lang} {
3127 return [gdb_can_simple_compile "i128-for-$lang" {
3129 int main() { return 0; }
3133 # Return true if the C compiler understands the __int128 type.
3134 gdb_caching_proc has_int128_c {
3135 return [gdb_int128_helper c]
3138 # Return true if the C++ compiler understands the __int128 type.
3139 gdb_caching_proc has_int128_cxx {
3140 return [gdb_int128_helper c++]
3143 # Return true if the IFUNC feature is unsupported.
3144 gdb_caching_proc skip_ifunc_tests {
3145 if [gdb_can_simple_compile ifunc {
3147 typedef void F (void);
3148 F* g (void) { return &f_; }
3149 void f () __attribute__ ((ifunc ("g")));
3157 # Return whether we should skip tests for showing inlined functions in
3158 # backtraces. Requires get_compiler_info and get_debug_format.
3160 proc skip_inline_frame_tests {} {
3161 # GDB only recognizes inlining information in DWARF 2 (DWARF 3).
3162 if { ! [test_debug_format "DWARF 2"] } {
3166 # GCC before 4.1 does not emit DW_AT_call_file / DW_AT_call_line.
3167 if { ([test_compiler_info "gcc-2-*"]
3168 || [test_compiler_info "gcc-3-*"]
3169 || [test_compiler_info "gcc-4-0-*"]) } {
3176 # Return whether we should skip tests for showing variables from
3177 # inlined functions. Requires get_compiler_info and get_debug_format.
3179 proc skip_inline_var_tests {} {
3180 # GDB only recognizes inlining information in DWARF 2 (DWARF 3).
3181 if { ! [test_debug_format "DWARF 2"] } {
3188 # Return a 1 if we should skip tests that require hardware breakpoints
3190 proc skip_hw_breakpoint_tests {} {
3191 # Skip tests if requested by the board (note that no_hardware_watchpoints
3192 # disables both watchpoints and breakpoints)
3193 if { [target_info exists gdb,no_hardware_watchpoints]} {
3197 # These targets support hardware breakpoints natively
3198 if { [istarget "i?86-*-*"]
3199 || [istarget "x86_64-*-*"]
3200 || [istarget "ia64-*-*"]
3201 || [istarget "arm*-*-*"]
3202 || [istarget "aarch64*-*-*"]
3203 || [istarget "s390*-*-*"] } {
3210 # Return a 1 if we should skip tests that require hardware watchpoints
3212 proc skip_hw_watchpoint_tests {} {
3213 # Skip tests if requested by the board
3214 if { [target_info exists gdb,no_hardware_watchpoints]} {
3218 # These targets support hardware watchpoints natively
3219 if { [istarget "i?86-*-*"]
3220 || [istarget "x86_64-*-*"]
3221 || [istarget "ia64-*-*"]
3222 || [istarget "arm*-*-*"]
3223 || [istarget "aarch64*-*-*"]
3224 || [istarget "powerpc*-*-linux*"]
3225 || [istarget "s390*-*-*"] } {
3232 # Return a 1 if we should skip tests that require *multiple* hardware
3233 # watchpoints to be active at the same time
3235 proc skip_hw_watchpoint_multi_tests {} {
3236 if { [skip_hw_watchpoint_tests] } {
3240 # These targets support just a single hardware watchpoint
3241 if { [istarget "arm*-*-*"]
3242 || [istarget "powerpc*-*-linux*"] } {
3249 # Return a 1 if we should skip tests that require read/access watchpoints
3251 proc skip_hw_watchpoint_access_tests {} {
3252 if { [skip_hw_watchpoint_tests] } {
3256 # These targets support just write watchpoints
3257 if { [istarget "s390*-*-*"] } {
3264 # Return 1 if we should skip tests that require the runtime unwinder
3265 # hook. This must be invoked while gdb is running, after shared
3266 # libraries have been loaded. This is needed because otherwise a
3267 # shared libgcc won't be visible.
3269 proc skip_unwinder_tests {} {
3273 gdb_test_multiple "print _Unwind_DebugHook" "check for unwinder hook" {
3274 -re "= .*no debug info.*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
3276 -re "= .*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
3279 -re "No symbol .* in current context.\r\n$gdb_prompt $" {
3283 gdb_test_multiple "info probe" "check for stap probe in unwinder" {
3284 -re ".*libgcc.*unwind.*\r\n$gdb_prompt $" {
3287 -re "\r\n$gdb_prompt $" {
3294 # Return 1 if we should skip tests that require the libstdc++ stap
3295 # probes. This must be invoked while gdb is running, after shared
3296 # libraries have been loaded. PROMPT_REGEXP is the expected prompt.
3298 proc skip_libstdcxx_probe_tests_prompt { prompt_regexp } {
3300 gdb_test_multiple "info probe" "check for stap probe in libstdc++" \
3301 -prompt "$prompt_regexp" {
3302 -re ".*libstdcxx.*catch.*\r\n$prompt_regexp" {
3305 -re "\r\n$prompt_regexp" {
3308 set skip [expr !$supported]
3312 # As skip_libstdcxx_probe_tests_prompt, with gdb_prompt.
3314 proc skip_libstdcxx_probe_tests {} {
3316 return [skip_libstdcxx_probe_tests_prompt "$gdb_prompt $"]
3319 # Return 1 if we should skip tests of the "compile" feature.
3320 # This must be invoked after the inferior has been started.
3322 proc skip_compile_feature_tests {} {
3326 gdb_test_multiple "compile code -- ;" "check for working compile command" {
3327 "Could not load libcc1.*\r\n$gdb_prompt $" {
3330 -re "Command not supported on this host\\..*\r\n$gdb_prompt $" {
3333 -re "\r\n$gdb_prompt $" {
3339 # Helper for gdb_is_target_* procs. TARGET_NAME is the name of the target
3340 # we're looking for (used to build the test name). TARGET_STACK_REGEXP
3341 # is a regexp that will match the output of "maint print target-stack" if
3342 # the target in question is currently pushed. PROMPT_REGEXP is a regexp
3343 # matching the expected prompt after the command output.
3345 proc gdb_is_target_1 { target_name target_stack_regexp prompt_regexp } {
3346 set test "probe for target ${target_name}"
3347 gdb_test_multiple "maint print target-stack" $test \
3348 -prompt "$prompt_regexp" {
3349 -re "${target_stack_regexp}${prompt_regexp}" {
3353 -re "$prompt_regexp" {
3360 # Helper for gdb_is_target_remote where the expected prompt is variable.
3362 proc gdb_is_target_remote_prompt { prompt_regexp } {
3363 return [gdb_is_target_1 "remote" ".*emote serial target in gdb-specific protocol.*" $prompt_regexp]
3366 # Check whether we're testing with the remote or extended-remote
3369 proc gdb_is_target_remote { } {
3372 return [gdb_is_target_remote_prompt "$gdb_prompt $"]
3375 # Check whether we're testing with the native target.
3377 proc gdb_is_target_native { } {
3380 return [gdb_is_target_1 "native" ".*native \\(Native process\\).*" "$gdb_prompt $"]
3383 # Return the effective value of use_gdb_stub.
3385 # If the use_gdb_stub global has been set (it is set when the gdb process is
3386 # spawned), return that. Otherwise, return the value of the use_gdb_stub
3387 # property from the board file.
3389 # This is the preferred way of checking use_gdb_stub, since it allows to check
3390 # the value before the gdb has been spawned and it will return the correct value
3391 # even when it was overriden by the test.
3393 proc use_gdb_stub {} {
3396 if [info exists use_gdb_stub] {
3397 return $use_gdb_stub
3400 return [target_info exists use_gdb_stub]
3403 # Return 1 if the current remote target is an instance of our GDBserver, 0
3404 # otherwise. Return -1 if there was an error and we can't tell.
3406 gdb_caching_proc target_is_gdbserver {
3410 set test "probing for GDBserver"
3412 gdb_test_multiple "monitor help" $test {
3413 -re "The following monitor commands are supported.*Quit GDBserver.*$gdb_prompt $" {
3416 -re "$gdb_prompt $" {
3421 if { $is_gdbserver == -1 } {
3422 verbose -log "Unable to tell whether we are using GDBserver or not."
3425 return $is_gdbserver
3428 # N.B. compiler_info is intended to be local to this file.
3429 # Call test_compiler_info with no arguments to fetch its value.
3430 # Yes, this is counterintuitive when there's get_compiler_info,
3431 # but that's the current API.
3432 if [info exists compiler_info] {
3438 # Figure out what compiler I am using.
3439 # The result is cached so only the first invocation runs the compiler.
3441 # ARG can be empty or "C++". If empty, "C" is assumed.
3443 # There are several ways to do this, with various problems.
3445 # [ gdb_compile -E $ifile -o $binfile.ci ]
3446 # source $binfile.ci
3448 # Single Unix Spec v3 says that "-E -o ..." together are not
3449 # specified. And in fact, the native compiler on hp-ux 11 (among
3450 # others) does not work with "-E -o ...". Most targets used to do
3451 # this, and it mostly worked, because it works with gcc.
3453 # [ catch "exec $compiler -E $ifile > $binfile.ci" exec_output ]
3454 # source $binfile.ci
3456 # This avoids the problem with -E and -o together. This almost works
3457 # if the build machine is the same as the host machine, which is
3458 # usually true of the targets which are not gcc. But this code does
3459 # not figure which compiler to call, and it always ends up using the C
3460 # compiler. Not good for setting hp_aCC_compiler. Target
3461 # hppa*-*-hpux* used to do this.
3463 # [ gdb_compile -E $ifile > $binfile.ci ]
3464 # source $binfile.ci
3466 # dejagnu target_compile says that it supports output redirection,
3467 # but the code is completely different from the normal path and I
3468 # don't want to sweep the mines from that path. So I didn't even try
3471 # set cppout [ gdb_compile $ifile "" preprocess $args quiet ]
3474 # I actually do this for all targets now. gdb_compile runs the right
3475 # compiler, and TCL captures the output, and I eval the output.
3477 # Unfortunately, expect logs the output of the command as it goes by,
3478 # and dejagnu helpfully prints a second copy of it right afterwards.
3479 # So I turn off expect logging for a moment.
3481 # [ gdb_compile $ifile $ciexe_file executable $args ]
3482 # [ remote_exec $ciexe_file ]
3483 # [ source $ci_file.out ]
3485 # I could give up on -E and just do this.
3486 # I didn't get desperate enough to try this.
3488 # -- chastain 2004-01-06
3490 proc get_compiler_info {{arg ""}} {
3491 # For compiler.c and compiler.cc
3494 # I am going to play with the log to keep noise out.
3498 # These come from compiler.c or compiler.cc
3499 global compiler_info
3501 # Legacy global data symbols.
3504 if [info exists compiler_info] {
3509 # Choose which file to preprocess.
3510 set ifile "${srcdir}/lib/compiler.c"
3511 if { $arg == "c++" } {
3512 set ifile "${srcdir}/lib/compiler.cc"
3515 # Run $ifile through the right preprocessor.
3516 # Toggle gdb.log to keep the compiler output out of the log.
3517 set saved_log [log_file -info]
3519 if [is_remote host] {
3520 # We have to use -E and -o together, despite the comments
3521 # above, because of how DejaGnu handles remote host testing.
3522 set ppout "$outdir/compiler.i"
3523 gdb_compile "${ifile}" "$ppout" preprocess [list "$arg" quiet getting_compiler_info]
3524 set file [open $ppout r]
3525 set cppout [read $file]
3528 set cppout [ gdb_compile "${ifile}" "" preprocess [list "$arg" quiet getting_compiler_info] ]
3530 eval log_file $saved_log
3534 foreach cppline [ split "$cppout" "\n" ] {
3535 if { [ regexp "^#" "$cppline" ] } {
3537 } elseif { [ regexp "^\[\n\r\t \]*$" "$cppline" ] } {
3539 } elseif { [ regexp "^\[\n\r\t \]*set\[\n\r\t \]" "$cppline" ] } {
3541 verbose "get_compiler_info: $cppline" 2
3545 verbose -log "get_compiler_info: $cppline"
3550 # Set to unknown if for some reason compiler_info didn't get defined.
3551 if ![info exists compiler_info] {
3552 verbose -log "get_compiler_info: compiler_info not provided"
3553 set compiler_info "unknown"
3555 # Also set to unknown compiler if any diagnostics happened.
3557 verbose -log "get_compiler_info: got unexpected diagnostics"
3558 set compiler_info "unknown"
3561 # Set the legacy symbols.
3563 regexp "^gcc-(\[0-9\]+)-" "$compiler_info" matchall gcc_compiled
3565 # Log what happened.
3566 verbose -log "get_compiler_info: $compiler_info"
3568 # Most compilers will evaluate comparisons and other boolean
3569 # operations to 0 or 1.
3570 uplevel \#0 { set true 1 }
3571 uplevel \#0 { set false 0 }
3576 # Return the compiler_info string if no arg is provided.
3577 # Otherwise the argument is a glob-style expression to match against
3580 proc test_compiler_info { {compiler ""} } {
3581 global compiler_info
3584 # If no arg, return the compiler_info string.
3585 if [string match "" $compiler] {
3586 return $compiler_info
3589 return [string match $compiler $compiler_info]
3592 proc current_target_name { } {
3594 if [info exists target_info(target,name)] {
3595 set answer $target_info(target,name)
3602 set gdb_wrapper_initialized 0
3603 set gdb_wrapper_target ""
3605 proc gdb_wrapper_init { args } {
3606 global gdb_wrapper_initialized
3607 global gdb_wrapper_file
3608 global gdb_wrapper_flags
3609 global gdb_wrapper_target
3611 # If the wrapper is initialized but the wrapper file cannot be
3612 # found anymore, the wrapper file must be built again.
3613 if { $gdb_wrapper_initialized == 1 && \
3614 [info exists gdb_wrapper_file] && \
3615 ![file exists $gdb_wrapper_file] } {
3616 verbose "reinitializing the wrapper"
3617 set gdb_wrapper_initialized 0
3620 if { $gdb_wrapper_initialized == 1 } { return; }
3622 if {[target_info exists needs_status_wrapper] && \
3623 [target_info needs_status_wrapper] != "0"} {
3624 set result [build_wrapper [standard_output_file "testglue.o"]]
3625 if { $result != "" } {
3626 set gdb_wrapper_file [lindex $result 0]
3627 set gdb_wrapper_flags [lindex $result 1]
3629 warning "Status wrapper failed to build."
3632 set gdb_wrapper_initialized 1
3633 set gdb_wrapper_target [current_target_name]
3636 # Determine options that we always want to pass to the compiler.
3637 gdb_caching_proc universal_compile_options {
3638 set me "universal_compile_options"
3641 set src [standard_temp_file ccopts[pid].c]
3642 set obj [standard_temp_file ccopts[pid].o]
3644 gdb_produce_source $src {
3645 int foo(void) { return 0; }
3648 # Try an option for disabling colored diagnostics. Some compilers
3649 # yield colored diagnostics by default (when run from a tty) unless
3650 # such an option is specified.
3651 set opt "additional_flags=-fdiagnostics-color=never"
3652 set lines [target_compile $src $obj object [list "quiet" $opt]]
3653 if [string match "" $lines] then {
3654 # Seems to have worked; use the option.
3655 lappend options $opt
3660 verbose "$me: returning $options" 2
3664 # Compile the code in $code to a file based on $name, using the flags
3665 # $compile_flag as well as debug, nowarning and quiet.
3666 # Return 1 if code can be compiled
3667 # Leave the file name of the resulting object in the upvar object.
3669 proc gdb_simple_compile {name code {type object} {compile_flags {}} {object obj}} {
3672 switch -regexp -- $type {
3687 foreach flag $compile_flags {
3688 if { "$flag" == "go" } {
3693 set src [standard_temp_file $name-[pid].$ext]
3694 set obj [standard_temp_file $name-[pid].$postfix]
3695 set compile_flags [concat $compile_flags {debug nowarnings quiet}]
3697 gdb_produce_source $src $code
3699 verbose "$name: compiling testfile $src" 2
3700 set lines [gdb_compile $src $obj $type $compile_flags]
3704 if ![string match "" $lines] then {
3705 verbose "$name: compilation failed, returning 0" 2
3711 # Compile the code in $code to a file based on $name, using the flags
3712 # $compile_flag as well as debug, nowarning and quiet.
3713 # Return 1 if code can be compiled
3714 # Delete all created files and objects.
3716 proc gdb_can_simple_compile {name code {type object} {compile_flags ""}} {
3717 set ret [gdb_simple_compile $name $code $type $compile_flags temp_obj]
3718 file delete $temp_obj
3722 # Some targets need to always link a special object in. Save its path here.
3723 global gdb_saved_set_unbuffered_mode_obj
3724 set gdb_saved_set_unbuffered_mode_obj ""
3726 # Compile source files specified by SOURCE into a binary of type TYPE at path
3727 # DEST. gdb_compile is implemented using DejaGnu's target_compile, so the type
3728 # parameter and most options are passed directly to it.
3730 # The type can be one of the following:
3732 # - object: Compile into an object file.
3733 # - executable: Compile and link into an executable.
3734 # - preprocess: Preprocess the source files.
3735 # - assembly: Generate assembly listing.
3737 # The following options are understood and processed by gdb_compile:
3739 # - shlib=so_path: Add SO_PATH to the sources, and enable some target-specific
3740 # quirks to be able to use shared libraries.
3741 # - shlib_load: Link with appropriate libraries to allow the test to
3742 # dynamically load libraries at runtime. For example, on Linux, this adds
3743 # -ldl so that the test can use dlopen.
3744 # - nowarnings: Inhibit all compiler warnings.
3745 # - pie: Force creation of PIE executables.
3746 # - nopie: Prevent creation of PIE executables.
3748 # And here are some of the not too obscure options understood by DejaGnu that
3749 # influence the compilation:
3751 # - additional_flags=flag: Add FLAG to the compiler flags.
3752 # - libs=library: Add LIBRARY to the libraries passed to the linker. The
3753 # argument can be a file, in which case it's added to the sources, or a
3755 # - ldflags=flag: Add FLAG to the linker flags.
3756 # - incdir=path: Add PATH to the searched include directories.
3757 # - libdir=path: Add PATH to the linker searched directories.
3758 # - ada, c++, f77: Compile the file as Ada, C++ or Fortran.
3759 # - debug: Build with debug information.
3760 # - optimize: Build with optimization.
3762 proc gdb_compile {source dest type options} {
3763 global GDB_TESTCASE_OPTIONS
3764 global gdb_wrapper_file
3765 global gdb_wrapper_flags
3766 global gdb_wrapper_initialized
3769 global gdb_saved_set_unbuffered_mode_obj
3771 set outdir [file dirname $dest]
3773 # Add platform-specific options if a shared library was specified using
3774 # "shlib=librarypath" in OPTIONS.
3776 if {[lsearch -exact $options rust] != -1} {
3777 # -fdiagnostics-color is not a rustcc option.
3779 set new_options [universal_compile_options]
3782 # Place (and look for) Fortran `.mod` files in the output
3783 # directory for this specific test.
3784 if {[lsearch -exact $options f77] != -1 \
3785 || [lsearch -exact $options f90] != -1 } {
3787 set mod_path [standard_output_file ""]
3788 lappend new_options "additional_flags=-J${mod_path}"
3793 set getting_compiler_info 0
3794 foreach opt $options {
3795 if {[regexp {^shlib=(.*)} $opt dummy_var shlib_name]
3796 && $type == "executable"} {
3797 if [test_compiler_info "xlc-*"] {
3798 # IBM xlc compiler doesn't accept shared library named other
3799 # than .so: use "-Wl," to bypass this
3800 lappend source "-Wl,$shlib_name"
3801 } elseif { ([istarget "*-*-mingw*"]
3802 || [istarget *-*-cygwin*]
3803 || [istarget *-*-pe*])} {
3804 lappend source "${shlib_name}.a"
3806 lappend source $shlib_name
3808 if { $shlib_found == 0 } {
3810 if { ([istarget "*-*-mingw*"]
3811 || [istarget *-*-cygwin*]) } {
3812 lappend new_options "additional_flags=-Wl,--enable-auto-import"
3814 if { [test_compiler_info "gcc-*"] || [test_compiler_info "clang-*"] } {
3815 # Undo debian's change in the default.
3816 # Put it at the front to not override any user-provided
3817 # value, and to make sure it appears in front of all the
3819 lappend new_options "early_flags=-Wl,--no-as-needed"
3822 } elseif { $opt == "shlib_load" && $type == "executable" } {
3824 } elseif { $opt == "getting_compiler_info" } {
3825 # If this is set, calling test_compiler_info will cause recursion.
3826 set getting_compiler_info 1
3828 lappend new_options $opt
3832 # Ensure stack protector is disabled for GCC, as this causes problems with
3833 # DWARF line numbering.
3834 # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88432
3835 # This option defaults to on for Debian/Ubuntu.
3836 if { $getting_compiler_info == 0
3837 && [test_compiler_info {gcc-*-*}]
3838 && !([test_compiler_info {gcc-[0-3]-*}]
3839 || [test_compiler_info {gcc-4-0-*}])
3840 && [lsearch -exact $options rust] == -1} {
3841 # Put it at the front to not override any user-provided value.
3842 lappend new_options "early_flags=-fno-stack-protector"
3845 # Because we link with libraries using their basename, we may need
3846 # (depending on the platform) to set a special rpath value, to allow
3847 # the executable to find the libraries it depends on.
3848 if { $shlib_load || $shlib_found } {
3849 if { ([istarget "*-*-mingw*"]
3850 || [istarget *-*-cygwin*]
3851 || [istarget *-*-pe*]) } {
3852 # Do not need anything.
3853 } elseif { [istarget *-*-freebsd*] || [istarget *-*-openbsd*] } {
3854 lappend new_options "ldflags=-Wl,-rpath,${outdir}"
3855 } elseif { [istarget arm*-*-symbianelf*] } {
3856 if { $shlib_load } {
3857 lappend new_options "libs=-ldl"
3860 if { $shlib_load } {
3861 lappend new_options "libs=-ldl"
3863 lappend new_options "ldflags=-Wl,-rpath,\\\$ORIGIN"
3866 set options $new_options
3868 if [info exists GDB_TESTCASE_OPTIONS] {
3869 lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"
3871 verbose "options are $options"
3872 verbose "source is $source $dest $type $options"
3876 if {[target_info exists needs_status_wrapper] && \
3877 [target_info needs_status_wrapper] != "0" && \
3878 [info exists gdb_wrapper_file]} {
3879 lappend options "libs=${gdb_wrapper_file}"
3880 lappend options "ldflags=${gdb_wrapper_flags}"
3883 # Replace the "nowarnings" option with the appropriate additional_flags
3884 # to disable compiler warnings.
3885 set nowarnings [lsearch -exact $options nowarnings]
3886 if {$nowarnings != -1} {
3887 if [target_info exists gdb,nowarnings_flag] {
3888 set flag "additional_flags=[target_info gdb,nowarnings_flag]"
3890 set flag "additional_flags=-w"
3892 set options [lreplace $options $nowarnings $nowarnings $flag]
3895 # Replace the "pie" option with the appropriate compiler and linker flags
3896 # to enable PIE executables.
3897 set pie [lsearch -exact $options pie]
3899 if [target_info exists gdb,pie_flag] {
3900 set flag "additional_flags=[target_info gdb,pie_flag]"
3902 # For safety, use fPIE rather than fpie. On AArch64, m68k, PowerPC
3903 # and SPARC, fpie can cause compile errors due to the GOT exceeding
3904 # a maximum size. On other architectures the two flags are
3905 # identical (see the GCC manual). Note Debian9 and Ubuntu16.10
3906 # onwards default GCC to using fPIE. If you do require fpie, then
3907 # it can be set using the pie_flag.
3908 set flag "additional_flags=-fPIE"
3910 set options [lreplace $options $pie $pie $flag]
3912 if [target_info exists gdb,pie_ldflag] {
3913 set flag "ldflags=[target_info gdb,pie_ldflag]"
3915 set flag "ldflags=-pie"
3917 lappend options "$flag"
3920 # Replace the "nopie" option with the appropriate linker flag to disable
3921 # PIE executables. There are no compiler flags for this option.
3922 set nopie [lsearch -exact $options nopie]
3924 if [target_info exists gdb,nopie_flag] {
3925 set flag "ldflags=[target_info gdb,nopie_flag]"
3927 set flag "ldflags=-no-pie"
3929 set options [lreplace $options $nopie $nopie $flag]
3932 if { $type == "executable" } {
3933 if { ([istarget "*-*-mingw*"]
3934 || [istarget "*-*-*djgpp"]
3935 || [istarget "*-*-cygwin*"])} {
3936 # Force output to unbuffered mode, by linking in an object file
3937 # with a global contructor that calls setvbuf.
3939 # Compile the special object separately for two reasons:
3940 # 1) Insulate it from $options.
3941 # 2) Avoid compiling it for every gdb_compile invocation,
3942 # which is time consuming, especially if we're remote
3945 if { $gdb_saved_set_unbuffered_mode_obj == "" } {
3946 verbose "compiling gdb_saved_set_unbuffered_obj"
3947 set unbuf_src ${srcdir}/lib/set_unbuffered_mode.c
3948 set unbuf_obj ${objdir}/set_unbuffered_mode.o
3950 set result [gdb_compile "${unbuf_src}" "${unbuf_obj}" object {nowarnings}]
3951 if { $result != "" } {
3954 if {[is_remote host]} {
3955 set gdb_saved_set_unbuffered_mode_obj set_unbuffered_mode_saved.o
3957 set gdb_saved_set_unbuffered_mode_obj ${objdir}/set_unbuffered_mode_saved.o
3959 # Link a copy of the output object, because the
3960 # original may be automatically deleted.
3961 remote_download host $unbuf_obj $gdb_saved_set_unbuffered_mode_obj
3963 verbose "gdb_saved_set_unbuffered_obj already compiled"
3966 # Rely on the internal knowledge that the global ctors are ran in
3967 # reverse link order. In that case, we can use ldflags to
3968 # avoid copying the object file to the host multiple
3970 # This object can only be added if standard libraries are
3971 # used. Thus, we need to disable it if -nostdlib option is used
3972 if {[lsearch -regexp $options "-nostdlib"] < 0 } {
3973 lappend options "ldflags=$gdb_saved_set_unbuffered_mode_obj"
3978 set result [target_compile $source $dest $type $options]
3980 # Prune uninteresting compiler (and linker) output.
3981 regsub "Creating library file: \[^\r\n\]*\[\r\n\]+" $result "" result
3983 regsub "\[\r\n\]*$" "$result" "" result
3984 regsub "^\[\r\n\]*" "$result" "" result
3986 if { $type == "executable" && $result == "" \
3987 && ($nopie != -1 || $pie != -1) } {
3988 set is_pie [exec_is_pie "$dest"]
3989 if { $nopie != -1 && $is_pie == 1 } {
3990 set result "nopie failed to prevent PIE executable"
3991 } elseif { $pie != -1 && $is_pie == 0 } {
3992 set result "pie failed to generate PIE executable"
3996 if {[lsearch $options quiet] < 0} {
3997 # We shall update this on a per language basis, to avoid
3998 # changing the entire testsuite in one go.
3999 if {[lsearch $options f77] >= 0} {
4000 gdb_compile_test $source $result
4001 } elseif { $result != "" } {
4002 clone_output "gdb compile failed, $result"
4009 # This is just like gdb_compile, above, except that it tries compiling
4010 # against several different thread libraries, to see which one this
4012 proc gdb_compile_pthreads {source dest type options} {
4013 if {$type != "executable"} {
4014 return [gdb_compile $source $dest $type $options]
4017 set why_msg "unrecognized error"
4018 foreach lib {-lpthreads -lpthread -lthread ""} {
4019 # This kind of wipes out whatever libs the caller may have
4020 # set. Or maybe theirs will override ours. How infelicitous.
4021 set options_with_lib [concat $options [list libs=$lib quiet]]
4022 set ccout [gdb_compile $source $dest $type $options_with_lib]
4023 switch -regexp -- $ccout {
4024 ".*no posix threads support.*" {
4025 set why_msg "missing threads include file"
4028 ".*cannot open -lpthread.*" {
4029 set why_msg "missing runtime threads library"
4031 ".*Can't find library for -lpthread.*" {
4032 set why_msg "missing runtime threads library"
4035 pass "successfully compiled posix threads test case"
4041 if {!$built_binfile} {
4042 unsupported "couldn't compile [file tail $source]: ${why_msg}"
4047 # Build a shared library from SOURCES.
4049 proc gdb_compile_shlib {sources dest options} {
4050 set obj_options $options
4053 if { [lsearch -exact $options "c++"] >= 0 } {
4054 set info_options "c++"
4056 if [get_compiler_info ${info_options}] {
4060 switch -glob [test_compiler_info] {
4062 lappend obj_options "additional_flags=-qpic"
4065 if { !([istarget "*-*-cygwin*"]
4066 || [istarget "*-*-mingw*"]) } {
4067 lappend obj_options "additional_flags=-fpic"
4071 if { !([istarget "powerpc*-*-aix*"]
4072 || [istarget "rs6000*-*-aix*"]
4073 || [istarget "*-*-cygwin*"]
4074 || [istarget "*-*-mingw*"]
4075 || [istarget "*-*-pe*"]) } {
4076 lappend obj_options "additional_flags=-fpic"
4080 lappend obj_options "additional_flags=-fpic"
4083 # don't know what the compiler is...
4087 set outdir [file dirname $dest]
4089 foreach source $sources {
4090 set sourcebase [file tail $source]
4091 if {[file extension $source] == ".o"} {
4092 # Already a .o file.
4093 lappend objects $source
4094 } elseif {[gdb_compile $source "${outdir}/${sourcebase}.o" object \
4095 $obj_options] != ""} {
4098 lappend objects ${outdir}/${sourcebase}.o
4102 set link_options $options
4103 if [test_compiler_info "xlc-*"] {
4104 lappend link_options "additional_flags=-qmkshrobj"
4106 lappend link_options "additional_flags=-shared"
4108 if { ([istarget "*-*-mingw*"]
4109 || [istarget *-*-cygwin*]
4110 || [istarget *-*-pe*]) } {
4111 if { [is_remote host] } {
4112 set name [file tail ${dest}]
4116 lappend link_options "additional_flags=-Wl,--out-implib,${name}.a"
4118 # Set the soname of the library. This causes the linker on ELF
4119 # systems to create the DT_NEEDED entry in the executable referring
4120 # to the soname of the library, and not its absolute path. This
4121 # (using the absolute path) would be problem when testing on a
4124 # In conjunction with setting the soname, we add the special
4125 # rpath=$ORIGIN value when building the executable, so that it's
4126 # able to find the library in its own directory.
4127 set destbase [file tail $dest]
4128 lappend link_options "additional_flags=-Wl,-soname,$destbase"
4131 if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} {
4134 if { [is_remote host]
4135 && ([istarget "*-*-mingw*"]
4136 || [istarget *-*-cygwin*]
4137 || [istarget *-*-pe*]) } {
4138 set dest_tail_name [file tail ${dest}]
4139 remote_upload host $dest_tail_name.a ${dest}.a
4140 remote_file host delete $dest_tail_name.a
4146 # This is just like gdb_compile_shlib, above, except that it tries compiling
4147 # against several different thread libraries, to see which one this
4149 proc gdb_compile_shlib_pthreads {sources dest options} {
4151 set why_msg "unrecognized error"
4152 foreach lib {-lpthreads -lpthread -lthread ""} {
4153 # This kind of wipes out whatever libs the caller may have
4154 # set. Or maybe theirs will override ours. How infelicitous.
4155 set options_with_lib [concat $options [list libs=$lib quiet]]
4156 set ccout [gdb_compile_shlib $sources $dest $options_with_lib]
4157 switch -regexp -- $ccout {
4158 ".*no posix threads support.*" {
4159 set why_msg "missing threads include file"
4162 ".*cannot open -lpthread.*" {
4163 set why_msg "missing runtime threads library"
4165 ".*Can't find library for -lpthread.*" {
4166 set why_msg "missing runtime threads library"
4169 pass "successfully compiled posix threads test case"
4175 if {!$built_binfile} {
4176 unsupported "couldn't compile $sources: ${why_msg}"
4181 # This is just like gdb_compile_pthreads, above, except that we always add the
4182 # objc library for compiling Objective-C programs
4183 proc gdb_compile_objc {source dest type options} {
4185 set why_msg "unrecognized error"
4186 foreach lib {-lobjc -lpthreads -lpthread -lthread solaris} {
4187 # This kind of wipes out whatever libs the caller may have
4188 # set. Or maybe theirs will override ours. How infelicitous.
4189 if { $lib == "solaris" } {
4190 set lib "-lpthread -lposix4"
4192 if { $lib != "-lobjc" } {
4193 set lib "-lobjc $lib"
4195 set options_with_lib [concat $options [list libs=$lib quiet]]
4196 set ccout [gdb_compile $source $dest $type $options_with_lib]
4197 switch -regexp -- $ccout {
4198 ".*no posix threads support.*" {
4199 set why_msg "missing threads include file"
4202 ".*cannot open -lpthread.*" {
4203 set why_msg "missing runtime threads library"
4205 ".*Can't find library for -lpthread.*" {
4206 set why_msg "missing runtime threads library"
4209 pass "successfully compiled objc with posix threads test case"
4215 if {!$built_binfile} {
4216 unsupported "couldn't compile [file tail $source]: ${why_msg}"
4221 # Build an OpenMP program from SOURCE. See prefatory comment for
4222 # gdb_compile, above, for discussion of the parameters to this proc.
4224 proc gdb_compile_openmp {source dest type options} {
4225 lappend options "additional_flags=-fopenmp"
4226 return [gdb_compile $source $dest $type $options]
4229 # Send a command to GDB.
4230 # For options for TYPE see gdb_stdin_log_write
4232 proc send_gdb { string {type standard}} {
4233 global suppress_flag
4234 if { $suppress_flag } {
4237 gdb_stdin_log_write $string $type
4238 return [remote_send host "$string"]
4241 # Send STRING to the inferior's terminal.
4243 proc send_inferior { string } {
4244 global inferior_spawn_id
4246 if {[catch "send -i $inferior_spawn_id -- \$string" errorInfo]} {
4256 proc gdb_expect { args } {
4257 if { [llength $args] == 2 && [lindex $args 0] != "-re" } {
4258 set atimeout [lindex $args 0]
4259 set expcode [list [lindex $args 1]]
4264 # A timeout argument takes precedence, otherwise of all the timeouts
4265 # select the largest.
4266 if [info exists atimeout] {
4269 set tmt [get_largest_timeout]
4272 global suppress_flag
4273 global remote_suppress_flag
4274 if [info exists remote_suppress_flag] {
4275 set old_val $remote_suppress_flag
4277 if [info exists suppress_flag] {
4278 if { $suppress_flag } {
4279 set remote_suppress_flag 1
4283 {uplevel remote_expect host $tmt $expcode} string]
4284 if [info exists old_val] {
4285 set remote_suppress_flag $old_val
4287 if [info exists remote_suppress_flag] {
4288 unset remote_suppress_flag
4293 global errorInfo errorCode
4295 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
4297 return -code $code $string
4301 # gdb_expect_list TEST SENTINEL LIST -- expect a sequence of outputs
4303 # Check for long sequence of output by parts.
4304 # TEST: is the test message to be printed with the test success/fail.
4305 # SENTINEL: Is the terminal pattern indicating that output has finished.
4306 # LIST: is the sequence of outputs to match.
4307 # If the sentinel is recognized early, it is considered an error.
4310 # 1 if the test failed,
4311 # 0 if the test passes,
4312 # -1 if there was an internal error.
4314 proc gdb_expect_list {test sentinel list} {
4316 global suppress_flag
4319 if { $suppress_flag } {
4321 unresolved "${test}"
4323 while { ${index} < [llength ${list}] } {
4324 set pattern [lindex ${list} ${index}]
4325 set index [expr ${index} + 1]
4326 verbose -log "gdb_expect_list pattern: /$pattern/" 2
4327 if { ${index} == [llength ${list}] } {
4330 -re "${pattern}${sentinel}" {
4331 # pass "${test}, pattern ${index} + sentinel"
4334 fail "${test} (pattern ${index} + sentinel)"
4337 -re ".*A problem internal to GDB has been detected" {
4338 fail "${test} (GDB internal error)"
4340 gdb_internal_error_resync
4343 fail "${test} (pattern ${index} + sentinel) (timeout)"
4348 # unresolved "${test}, pattern ${index} + sentinel"
4354 # pass "${test}, pattern ${index}"
4357 fail "${test} (pattern ${index})"
4360 -re ".*A problem internal to GDB has been detected" {
4361 fail "${test} (GDB internal error)"
4363 gdb_internal_error_resync
4366 fail "${test} (pattern ${index}) (timeout)"
4371 # unresolved "${test}, pattern ${index}"
4385 proc gdb_suppress_entire_file { reason } {
4386 global suppress_flag
4389 set suppress_flag -1
4393 # Set suppress_flag, which will cause all subsequent calls to send_gdb and
4394 # gdb_expect to fail immediately (until the next call to
4395 # gdb_stop_suppressing_tests).
4397 proc gdb_suppress_tests { args } {
4398 global suppress_flag
4400 return; # fnf - disable pending review of results where
4401 # testsuite ran better without this
4404 if { $suppress_flag == 1 } {
4405 if { [llength $args] > 0 } {
4406 warning "[lindex $args 0]\n"
4408 warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n"
4414 # Clear suppress_flag.
4416 proc gdb_stop_suppressing_tests { } {
4417 global suppress_flag
4419 if [info exists suppress_flag] {
4420 if { $suppress_flag > 0 } {
4422 clone_output "Tests restarted.\n"
4429 proc gdb_clear_suppressed { } {
4430 global suppress_flag
4435 # Spawn the gdb process.
4437 # This doesn't expect any output or do any other initialization,
4438 # leaving those to the caller.
4440 # Overridable function -- you can override this function in your
4443 proc gdb_spawn { } {
4447 # Spawn GDB with CMDLINE_FLAGS appended to the GDBFLAGS global.
4449 proc gdb_spawn_with_cmdline_opts { cmdline_flags } {
4452 set saved_gdbflags $GDBFLAGS
4454 if {$GDBFLAGS != ""} {
4457 append GDBFLAGS $cmdline_flags
4461 set GDBFLAGS $saved_gdbflags
4466 # Start gdb running, wait for prompt, and disable the pagers.
4468 # Overridable function -- you can override this function in your
4471 proc gdb_start { } {
4476 catch default_gdb_exit
4479 # Return true if we can spawn a program on the target and attach to
4482 proc can_spawn_for_attach { } {
4483 # We use exp_pid to get the inferior's pid, assuming that gives
4484 # back the pid of the program. On remote boards, that would give
4485 # us instead the PID of e.g., the ssh client, etc.
4486 if [is_remote target] then {
4490 # The "attach" command doesn't make sense when the target is
4491 # stub-like, where GDB finds the program already started on
4492 # initial connection.
4493 if {[target_info exists use_gdb_stub]} {
4501 # Kill a progress previously started with spawn_wait_for_attach, and
4502 # reap its wait status. PROC_SPAWN_ID is the spawn id associated with
4505 proc kill_wait_spawned_process { proc_spawn_id } {
4506 set pid [exp_pid -i $proc_spawn_id]
4508 verbose -log "killing ${pid}"
4509 remote_exec build "kill -9 ${pid}"
4511 verbose -log "closing ${proc_spawn_id}"
4512 catch "close -i $proc_spawn_id"
4513 verbose -log "waiting for ${proc_spawn_id}"
4515 # If somehow GDB ends up still attached to the process here, a
4516 # blocking wait hangs until gdb is killed (or until gdb / the
4517 # ptracer reaps the exit status too, but that won't happen because
4518 # something went wrong.) Passing -nowait makes expect tell Tcl to
4519 # wait for the PID in the background. That's fine because we
4520 # don't care about the exit status. */
4521 wait -nowait -i $proc_spawn_id
4524 # Returns the process id corresponding to the given spawn id.
4526 proc spawn_id_get_pid { spawn_id } {
4527 set testpid [exp_pid -i $spawn_id]
4529 if { [istarget "*-*-cygwin*"] } {
4530 # testpid is the Cygwin PID, GDB uses the Windows PID, which
4531 # might be different due to the way fork/exec works.
4532 set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
4538 # Start a set of programs running and then wait for a bit, to be sure
4539 # that they can be attached to. Return a list of processes spawn IDs,
4540 # one element for each process spawned. It's a test error to call
4541 # this when [can_spawn_for_attach] is false.
4543 proc spawn_wait_for_attach { executable_list } {
4544 set spawn_id_list {}
4546 if ![can_spawn_for_attach] {
4547 # The caller should have checked can_spawn_for_attach itself
4548 # before getting here.
4549 error "can't spawn for attach with this target/board"
4552 foreach {executable} $executable_list {
4553 # Note we use Expect's spawn, not Tcl's exec, because with
4554 # spawn we control when to wait for/reap the process. That
4555 # allows killing the process by PID without being subject to
4557 lappend spawn_id_list [remote_spawn target $executable]
4562 return $spawn_id_list
4566 # gdb_load_cmd -- load a file into the debugger.
4567 # ARGS - additional args to load command.
4568 # return a -1 if anything goes wrong.
4570 proc gdb_load_cmd { args } {
4573 if [target_info exists gdb_load_timeout] {
4574 set loadtimeout [target_info gdb_load_timeout]
4576 set loadtimeout 1600
4578 send_gdb "load $args\n"
4579 verbose "Timeout is now $loadtimeout seconds" 2
4580 gdb_expect $loadtimeout {
4581 -re "Loading section\[^\r\]*\r\n" {
4584 -re "Start address\[\r\]*\r\n" {
4587 -re "Transfer rate\[\r\]*\r\n" {
4590 -re "Memory access error\[^\r\]*\r\n" {
4591 perror "Failed to load program"
4594 -re "$gdb_prompt $" {
4597 -re "(.*)\r\n$gdb_prompt " {
4598 perror "Unexpected reponse from 'load' -- $expect_out(1,string)"
4602 perror "Timed out trying to load $args."
4609 # Invoke "gcore". CORE is the name of the core file to write. TEST
4610 # is the name of the test case. This will return 1 if the core file
4611 # was created, 0 otherwise. If this fails to make a core file because
4612 # this configuration of gdb does not support making core files, it
4613 # will call "unsupported", not "fail". However, if this fails to make
4614 # a core file for some other reason, then it will call "fail".
4616 proc gdb_gcore_cmd {core test} {
4620 gdb_test_multiple "gcore $core" $test {
4621 -re "Saved corefile .*\[\r\n\]+$gdb_prompt $" {
4625 -re "(?:Can't create a corefile|Target does not support core file generation\\.)\[\r\n\]+$gdb_prompt $" {
4633 # Load core file CORE. TEST is the name of the test case.
4634 # This will record a pass/fail for loading the core file.
4636 # 1 - core file is successfully loaded
4637 # 0 - core file loaded but has a non fatal error
4638 # -1 - core file failed to load
4640 proc gdb_core_cmd { core test } {
4643 gdb_test_multiple "core $core" "$test" {
4644 -re "\\\[Thread debugging using \[^ \r\n\]* enabled\\\]\r\n" {
4647 -re " is not a core dump:.*\r\n$gdb_prompt $" {
4648 fail "$test (bad file format)"
4651 -re -wrap "[string_to_regexp $core]: No such file or directory.*" {
4652 fail "$test (file not found)"
4655 -re "Couldn't find .* registers in core file.*\r\n$gdb_prompt $" {
4656 fail "$test (incomplete note section)"
4659 -re "Core was generated by .*\r\n$gdb_prompt $" {
4663 -re ".*$gdb_prompt $" {
4668 fail "$test (timeout)"
4672 fail "unsupported output from 'core' command"
4676 # Return the filename to download to the target and load on the target
4677 # for this shared library. Normally just LIBNAME, unless shared libraries
4678 # for this target have separate link and load images.
4680 proc shlib_target_file { libname } {
4684 # Return the filename GDB will load symbols from when debugging this
4685 # shared library. Normally just LIBNAME, unless shared libraries for
4686 # this target have separate link and load images.
4688 proc shlib_symbol_file { libname } {
4692 # Return the filename to download to the target and load for this
4693 # executable. Normally just BINFILE unless it is renamed to something
4694 # else for this target.
4696 proc exec_target_file { binfile } {
4700 # Return the filename GDB will load symbols from when debugging this
4701 # executable. Normally just BINFILE unless executables for this target
4702 # have separate files for symbols.
4704 proc exec_symbol_file { binfile } {
4708 # Rename the executable file. Normally this is just BINFILE1 being renamed
4709 # to BINFILE2, but some targets require multiple binary files.
4710 proc gdb_rename_execfile { binfile1 binfile2 } {
4711 file rename -force [exec_target_file ${binfile1}] \
4712 [exec_target_file ${binfile2}]
4713 if { [exec_target_file ${binfile1}] != [exec_symbol_file ${binfile1}] } {
4714 file rename -force [exec_symbol_file ${binfile1}] \
4715 [exec_symbol_file ${binfile2}]
4719 # "Touch" the executable file to update the date. Normally this is just
4720 # BINFILE, but some targets require multiple files.
4721 proc gdb_touch_execfile { binfile } {
4722 set time [clock seconds]
4723 file mtime [exec_target_file ${binfile}] $time
4724 if { [exec_target_file ${binfile}] != [exec_symbol_file ${binfile}] } {
4725 file mtime [exec_symbol_file ${binfile}] $time
4729 # Like remote_download but provides a gdb-specific behavior.
4731 # If the destination board is remote, the local file FROMFILE is transferred as
4732 # usual with remote_download to TOFILE on the remote board. The destination
4733 # filename is added to the CLEANFILES global, so it can be cleaned up at the
4736 # If the destination board is local, the destination path TOFILE is passed
4737 # through standard_output_file, and FROMFILE is copied there.
4739 # In both cases, if TOFILE is omitted, it defaults to the [file tail] of
4742 proc gdb_remote_download {dest fromfile {tofile {}}} {
4743 # If TOFILE is not given, default to the same filename as FROMFILE.
4744 if {[string length $tofile] == 0} {
4745 set tofile [file tail $fromfile]
4748 if {[is_remote $dest]} {
4749 # When the DEST is remote, we simply send the file to DEST.
4752 set destname [remote_download $dest $fromfile $tofile]
4753 lappend cleanfiles $destname
4757 # When the DEST is local, we copy the file to the test directory (where
4758 # the executable is).
4760 # Note that we pass TOFILE through standard_output_file, regardless of
4761 # whether it is absolute or relative, because we don't want the tests
4762 # to be able to write outside their standard output directory.
4764 set tofile [standard_output_file $tofile]
4766 file copy -force $fromfile $tofile
4772 # gdb_load_shlib LIB...
4774 # Copy the listed library to the target.
4776 proc gdb_load_shlib { file } {
4779 if ![info exists gdb_spawn_id] {
4780 perror "gdb_load_shlib: GDB is not running"
4783 set dest [gdb_remote_download target [shlib_target_file $file]]
4785 if {[is_remote target]} {
4786 # If the target is remote, we need to tell gdb where to find the
4789 # We could set this even when not testing remotely, but a user
4790 # generally won't set it unless necessary. In order to make the tests
4791 # more like the real-life scenarios, we don't set it for local testing.
4792 gdb_test "set solib-search-path [file dirname $file]" "" ""
4799 # gdb_load -- load a file into the debugger. Specifying no file
4800 # defaults to the executable currently being debugged.
4801 # The return value is 0 for success, -1 for failure.
4802 # Many files in config/*.exp override this procedure.
4804 proc gdb_load { arg } {
4806 return [gdb_file_cmd $arg]
4811 # gdb_reload -- load a file into the target. Called before "running",
4812 # either the first time or after already starting the program once,
4813 # for remote targets. Most files that override gdb_load should now
4814 # override this instead.
4816 proc gdb_reload { } {
4817 # For the benefit of existing configurations, default to gdb_load.
4818 # Specifying no file defaults to the executable currently being
4820 return [gdb_load ""]
4823 proc gdb_continue { function } {
4826 return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]
4829 proc default_gdb_init { test_file_name } {
4830 global gdb_wrapper_initialized
4831 global gdb_wrapper_target
4832 global gdb_test_file_name
4838 gdb_clear_suppressed
4840 set gdb_test_file_name [file rootname [file tail $test_file_name]]
4842 # Make sure that the wrapper is rebuilt
4843 # with the appropriate multilib option.
4844 if { $gdb_wrapper_target != [current_target_name] } {
4845 set gdb_wrapper_initialized 0
4848 # Unlike most tests, we have a small number of tests that generate
4849 # a very large amount of output. We therefore increase the expect
4850 # buffer size to be able to contain the entire test output. This
4851 # is especially needed by gdb.base/info-macros.exp.
4853 # Also set this value for the currently running GDB.
4854 match_max [match_max -d]
4856 # We want to add the name of the TCL testcase to the PASS/FAIL messages.
4857 set pf_prefix "[file tail [file dirname $test_file_name]]/[file tail $test_file_name]:"
4860 if [target_info exists gdb_prompt] {
4861 set gdb_prompt [target_info gdb_prompt]
4863 set gdb_prompt "\\(gdb\\)"
4866 if [info exists use_gdb_stub] {
4871 # Return a path using GDB_PARALLEL.
4872 # ARGS is a list of path elements to append to "$objdir/$GDB_PARALLEL".
4873 # GDB_PARALLEL must be defined, the caller must check.
4875 # The default value for GDB_PARALLEL is, canonically, ".".
4876 # The catch is that tests don't expect an additional "./" in file paths so
4877 # omit any directory for the default case.
4878 # GDB_PARALLEL is written as "yes" for the default case in Makefile.in to mark
4879 # its special handling.
4881 proc make_gdb_parallel_path { args } {
4882 global GDB_PARALLEL objdir
4883 set joiner [list "file" "join" $objdir]
4884 if { [info exists GDB_PARALLEL] && $GDB_PARALLEL != "yes" } {
4885 lappend joiner $GDB_PARALLEL
4887 set joiner [concat $joiner $args]
4888 return [eval $joiner]
4891 # Turn BASENAME into a full file name in the standard output
4892 # directory. It is ok if BASENAME is the empty string; in this case
4893 # the directory is returned.
4895 proc standard_output_file {basename} {
4896 global objdir subdir gdb_test_file_name
4898 set dir [make_gdb_parallel_path outputs $subdir $gdb_test_file_name]
4900 # If running on MinGW, replace /c/foo with c:/foo
4901 if { [ishost *-*-mingw*] } {
4902 set dir [exec sh -c "cd ${dir} && pwd -W"]
4904 return [file join $dir $basename]
4907 # Turn BASENAME into a full file name in the standard output directory. If
4908 # GDB has been launched more than once then append the count, starting with
4911 proc standard_output_file_with_gdb_instance {basename} {
4912 global gdb_instances
4913 set count [expr $gdb_instances - 1 ]
4916 return [standard_output_file $basename]
4918 return [standard_output_file ${basename}.${count}]
4921 # Return the name of a file in our standard temporary directory.
4923 proc standard_temp_file {basename} {
4924 # Since a particular runtest invocation is only executing a single test
4925 # file at any given time, we can use the runtest pid to build the
4926 # path of the temp directory.
4927 set dir [make_gdb_parallel_path temp [pid]]
4929 return [file join $dir $basename]
4932 # Rename file A to file B, if B does not already exists. Otherwise, leave B
4933 # as is and delete A. Return 1 if rename happened.
4935 proc tentative_rename { a b } {
4936 global errorInfo errorCode
4937 set code [catch {file rename -- $a $b} result]
4938 if { $code == 1 && [lindex $errorCode 0] == "POSIX" \
4939 && [lindex $errorCode 1] == "EEXIST" } {
4944 return -code error -errorinfo $errorInfo -errorcode $errorCode $result
4945 } elseif {$code > 1} {
4946 return -code $code $result
4951 # Create a file with name FILENAME and contents TXT in the cache directory.
4952 # If EXECUTABLE, mark the new file for execution.
4954 proc cached_file { filename txt {executable 0}} {
4955 set filename [make_gdb_parallel_path cache $filename]
4957 if { [file exists $filename] } {
4961 set dir [file dirname $filename]
4964 set tmp_filename $filename.[pid]
4965 set fd [open $tmp_filename w]
4969 if { $executable } {
4970 exec chmod +x $tmp_filename
4972 tentative_rename $tmp_filename $filename
4977 # Set 'testfile', 'srcfile', and 'binfile'.
4979 # ARGS is a list of source file specifications.
4980 # Without any arguments, the .exp file's base name is used to
4981 # compute the source file name. The ".c" extension is added in this case.
4982 # If ARGS is not empty, each entry is a source file specification.
4983 # If the specification starts with a ".", it is treated as a suffix
4984 # to append to the .exp file's base name.
4985 # If the specification is the empty string, it is treated as if it
4987 # Otherwise it is a file name.
4988 # The first file in the list is used to set the 'srcfile' global.
4989 # Each subsequent name is used to set 'srcfile2', 'srcfile3', etc.
4991 # Most tests should call this without arguments.
4993 # If a completely different binary file name is needed, then it
4994 # should be handled in the .exp file with a suitable comment.
4996 proc standard_testfile {args} {
4997 global gdb_test_file_name
4999 global gdb_test_file_last_vars
5002 global testfile binfile
5004 set testfile $gdb_test_file_name
5005 set binfile [standard_output_file ${testfile}]
5007 if {[llength $args] == 0} {
5011 # Unset our previous output variables.
5012 # This can help catch hidden bugs.
5013 if {[info exists gdb_test_file_last_vars]} {
5014 foreach varname $gdb_test_file_last_vars {
5016 catch {unset $varname}
5019 # 'executable' is often set by tests.
5020 set gdb_test_file_last_vars {executable}
5024 set varname srcfile$suffix
5027 # Handle an extension.
5030 } elseif {[string range $arg 0 0] == "."} {
5031 set arg $testfile$arg
5035 lappend gdb_test_file_last_vars $varname
5037 if {$suffix == ""} {
5045 # The default timeout used when testing GDB commands. We want to use
5046 # the same timeout as the default dejagnu timeout, unless the user has
5047 # already provided a specific value (probably through a site.exp file).
5048 global gdb_test_timeout
5049 if ![info exists gdb_test_timeout] {
5050 set gdb_test_timeout $timeout
5053 # A list of global variables that GDB testcases should not use.
5054 # We try to prevent their use by monitoring write accesses and raising
5055 # an error when that happens.
5056 set banned_variables { bug_id prms_id }
5058 # A list of procedures that GDB testcases should not use.
5059 # We try to prevent their use by monitoring invocations and raising
5060 # an error when that happens.
5061 set banned_procedures { strace }
5063 # gdb_init is called by runtest at start, but also by several
5064 # tests directly; gdb_finish is only called from within runtest after
5065 # each test source execution.
5066 # Placing several traces by repetitive calls to gdb_init leads
5067 # to problems, as only one trace is removed in gdb_finish.
5068 # To overcome this possible problem, we add a variable that records
5069 # if the banned variables and procedures are already traced.
5072 proc gdb_init { test_file_name } {
5073 # Reset the timeout value to the default. This way, any testcase
5074 # that changes the timeout value without resetting it cannot affect
5075 # the timeout used in subsequent testcases.
5076 global gdb_test_timeout
5078 set timeout $gdb_test_timeout
5080 if { [regexp ".*gdb\.reverse\/.*" $test_file_name]
5081 && [target_info exists gdb_reverse_timeout] } {
5082 set timeout [target_info gdb_reverse_timeout]
5085 # If GDB_INOTIFY is given, check for writes to '.'. This is a
5086 # debugging tool to help confirm that the test suite is
5087 # parallel-safe. You need "inotifywait" from the
5088 # inotify-tools package to use this.
5089 global GDB_INOTIFY inotify_pid
5090 if {[info exists GDB_INOTIFY] && ![info exists inotify_pid]} {
5091 global outdir tool inotify_log_file
5093 set exclusions {outputs temp gdb[.](log|sum) cache}
5094 set exclusion_re ([join $exclusions |])
5096 set inotify_log_file [standard_temp_file inotify.out]
5097 set inotify_pid [exec inotifywait -r -m -e move,create,delete . \
5098 --exclude $exclusion_re \
5099 |& tee -a $outdir/$tool.log $inotify_log_file &]
5101 # Wait for the watches; hopefully this is long enough.
5104 # Clear the log so that we don't emit a warning the first time
5106 set fd [open $inotify_log_file w]
5110 # Block writes to all banned variables, and invocation of all
5111 # banned procedures...
5112 global banned_variables
5113 global banned_procedures
5114 global banned_traced
5115 if (!$banned_traced) {
5116 foreach banned_var $banned_variables {
5117 global "$banned_var"
5118 trace add variable "$banned_var" write error
5120 foreach banned_proc $banned_procedures {
5121 global "$banned_proc"
5122 trace add execution "$banned_proc" enter error
5127 # We set LC_ALL, LC_CTYPE, and LANG to C so that we get the same
5128 # messages as expected.
5133 # Don't let a .inputrc file or an existing setting of INPUTRC mess up
5134 # the test results. Even if /dev/null doesn't exist on the particular
5135 # platform, the readline library will use the default setting just by
5136 # failing to open the file. OTOH, opening /dev/null successfully will
5137 # also result in the default settings being used since nothing will be
5138 # read from this file.
5139 setenv INPUTRC "/dev/null"
5141 # This disables style output, which would interfere with many
5145 # Ensure that GDBHISTFILE and GDBHISTSIZE are removed from the
5146 # environment, we don't want these modifications to the history
5148 unset -nocomplain ::env(GDBHISTFILE)
5149 unset -nocomplain ::env(GDBHISTSIZE)
5151 # Initialize GDB's pty with a fixed size, to make sure we avoid pagination
5152 # during startup. See "man expect" for details about stty_init.
5154 set stty_init "rows 25 cols 80"
5156 # Some tests (for example gdb.base/maint.exp) shell out from gdb to use
5157 # grep. Clear GREP_OPTIONS to make the behavior predictable,
5158 # especially having color output turned on can cause tests to fail.
5159 setenv GREP_OPTIONS ""
5161 # Clear $gdbserver_reconnect_p.
5162 global gdbserver_reconnect_p
5163 set gdbserver_reconnect_p 1
5164 unset gdbserver_reconnect_p
5166 # Clear $last_loaded_file
5167 global last_loaded_file
5168 unset -nocomplain last_loaded_file
5170 # Reset GDB number of instances
5171 global gdb_instances
5174 return [default_gdb_init $test_file_name]
5177 proc gdb_finish { } {
5178 global gdbserver_reconnect_p
5182 # Exit first, so that the files are no longer in use.
5185 if { [llength $cleanfiles] > 0 } {
5186 eval remote_file target delete $cleanfiles
5190 # Unblock write access to the banned variables. Dejagnu typically
5191 # resets some of them between testcases.
5192 global banned_variables
5193 global banned_procedures
5194 global banned_traced
5195 if ($banned_traced) {
5196 foreach banned_var $banned_variables {
5197 global "$banned_var"
5198 trace remove variable "$banned_var" write error
5200 foreach banned_proc $banned_procedures {
5201 global "$banned_proc"
5202 trace remove execution "$banned_proc" enter error
5209 set debug_format "unknown"
5211 # Run the gdb command "info source" and extract the debugging format
5212 # information from the output and save it in debug_format.
5214 proc get_debug_format { } {
5219 set debug_format "unknown"
5220 send_gdb "info source\n"
5222 -re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" {
5223 set debug_format $expect_out(1,string)
5224 verbose "debug format is $debug_format"
5227 -re "No current source file.\r\n$gdb_prompt $" {
5228 perror "get_debug_format used when no current source file"
5231 -re "$gdb_prompt $" {
5232 warning "couldn't check debug format (no valid response)."
5236 warning "couldn't check debug format (timeout)."
5242 # Return true if FORMAT matches the debug format the current test was
5243 # compiled with. FORMAT is a shell-style globbing pattern; it can use
5244 # `*', `[...]', and so on.
5246 # This function depends on variables set by `get_debug_format', above.
5248 proc test_debug_format {format} {
5251 return [expr [string match $format $debug_format] != 0]
5254 # Like setup_xfail, but takes the name of a debug format (DWARF 1,
5255 # COFF, stabs, etc). If that format matches the format that the
5256 # current test was compiled with, then the next test is expected to
5257 # fail for any target. Returns 1 if the next test or set of tests is
5258 # expected to fail, 0 otherwise (or if it is unknown). Must have
5259 # previously called get_debug_format.
5260 proc setup_xfail_format { format } {
5261 set ret [test_debug_format $format]
5269 # gdb_get_line_number TEXT [FILE]
5271 # Search the source file FILE, and return the line number of the
5272 # first line containing TEXT. If no match is found, an error is thrown.
5274 # TEXT is a string literal, not a regular expression.
5276 # The default value of FILE is "$srcdir/$subdir/$srcfile". If FILE is
5277 # specified, and does not start with "/", then it is assumed to be in
5278 # "$srcdir/$subdir". This is awkward, and can be fixed in the future,
5279 # by changing the callers and the interface at the same time.
5280 # In particular: gdb.base/break.exp, gdb.base/condbreak.exp,
5281 # gdb.base/ena-dis-br.exp.
5283 # Use this function to keep your test scripts independent of the
5284 # exact line numbering of the source file. Don't write:
5286 # send_gdb "break 20"
5288 # This means that if anyone ever edits your test's source file,
5289 # your test could break. Instead, put a comment like this on the
5290 # source file line you want to break at:
5292 # /* breakpoint spot: frotz.exp: test name */
5294 # and then write, in your test script (which we assume is named
5297 # send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n"
5299 # (Yes, Tcl knows how to handle the nested quotes and brackets.
5302 # % puts "foo [lindex "bar baz" 1]"
5305 # Tcl is quite clever, for a little stringy language.)
5309 # The previous implementation of this procedure used the gdb search command.
5310 # This version is different:
5312 # . It works with MI, and it also works when gdb is not running.
5314 # . It operates on the build machine, not the host machine.
5316 # . For now, this implementation fakes a current directory of
5317 # $srcdir/$subdir to be compatible with the old implementation.
5318 # This will go away eventually and some callers will need to
5321 # . The TEXT argument is literal text and matches literally,
5322 # not a regular expression as it was before.
5324 # . State changes in gdb, such as changing the current file
5325 # and setting $_, no longer happen.
5327 # After a bit of time we can forget about the differences from the
5328 # old implementation.
5330 # --chastain 2004-08-05
5332 proc gdb_get_line_number { text { file "" } } {
5337 if { "$file" == "" } then {
5340 if { ! [regexp "^/" "$file"] } then {
5341 set file "$srcdir/$subdir/$file"
5344 if { [ catch { set fd [open "$file"] } message ] } then {
5349 for { set line 1 } { 1 } { incr line } {
5350 if { [ catch { set nchar [gets "$fd" body] } message ] } then {
5353 if { $nchar < 0 } then {
5356 if { [string first "$text" "$body"] >= 0 } then {
5362 if { [ catch { close "$fd" } message ] } then {
5367 error "undefined tag \"$text\""
5373 # Continue the program until it ends.
5375 # MSSG is the error message that gets printed. If not given, a
5377 # COMMAND is the command to invoke. If not given, "continue" is
5379 # ALLOW_EXTRA is a flag indicating whether the test should expect
5380 # extra output between the "Continuing." line and the program
5381 # exiting. By default it is zero; if nonzero, any extra output
5384 proc gdb_continue_to_end {{mssg ""} {command continue} {allow_extra 0}} {
5385 global inferior_exited_re use_gdb_stub
5388 set text "continue until exit"
5390 set text "continue until exit at $mssg"
5398 # By default, we don't rely on exit() behavior of remote stubs --
5399 # it's common for exit() to be implemented as a simple infinite
5400 # loop, or a forced crash/reset. For native targets, by default, we
5401 # assume process exit is reported as such. If a non-reliable target
5402 # is used, we set a breakpoint at exit, and continue to that.
5403 if { [target_info exists exit_is_reliable] } {
5404 set exit_is_reliable [target_info exit_is_reliable]
5406 set exit_is_reliable [expr ! $use_gdb_stub]
5409 if { ! $exit_is_reliable } {
5410 if {![gdb_breakpoint "exit"]} {
5413 gdb_test $command "Continuing..*Breakpoint .*exit.*" \
5416 # Continue until we exit. Should not stop again.
5417 # Don't bother to check the output of the program, that may be
5418 # extremely tough for some remote systems.
5420 "Continuing.\[\r\n0-9\]+${extra}(... EXIT code 0\[\r\n\]+|$inferior_exited_re normally).*"\
5425 proc rerun_to_main {} {
5426 global gdb_prompt use_gdb_stub
5431 -re ".*Breakpoint .*main .*$gdb_prompt $"\
5432 {pass "rerun to main" ; return 0}
5433 -re "$gdb_prompt $"\
5434 {fail "rerun to main" ; return 0}
5435 timeout {fail "(timeout) rerun to main" ; return 0}
5440 -re "The program .* has been started already.*y or n. $" {
5441 send_gdb "y\n" answer
5444 -re "Starting program.*$gdb_prompt $"\
5445 {pass "rerun to main" ; return 0}
5446 -re "$gdb_prompt $"\
5447 {fail "rerun to main" ; return 0}
5448 timeout {fail "(timeout) rerun to main" ; return 0}
5453 # Return true if EXECUTABLE contains a .gdb_index or .debug_names index section.
5455 proc exec_has_index_section { executable } {
5456 set readelf_program [gdb_find_readelf]
5457 set res [catch {exec $readelf_program -S $executable \
5458 | grep -E "\.gdb_index|\.debug_names" }]
5465 # Return list with major and minor version of readelf, or an empty list.
5466 gdb_caching_proc readelf_version {
5467 set readelf_program [gdb_find_readelf]
5468 set res [catch {exec $readelf_program --version} output]
5472 set lines [split $output \n]
5473 set line [lindex $lines 0]
5474 set res [regexp {[ \t]+([0-9]+)[.]([0-9]+)[^ \t]*$} \
5475 $line dummy major minor]
5479 return [list $major $minor]
5482 # Return 1 if readelf prints the PIE flag, 0 if is doesn't, and -1 if unknown.
5483 proc readelf_prints_pie { } {
5484 set version [readelf_version]
5485 if { [llength $version] == 0 } {
5488 set major [lindex $version 0]
5489 set minor [lindex $version 1]
5490 # It would be better to construct a PIE executable and test if the PIE
5491 # flag is printed by readelf, but we cannot reliably construct a PIE
5492 # executable if the multilib_flags dictate otherwise
5493 # (--target_board=unix/-no-pie/-fno-PIE).
5494 return [version_at_least $major $minor 2 26]
5497 # Return 1 if EXECUTABLE is a Position Independent Executable, 0 if it is not,
5498 # and -1 if unknown.
5500 proc exec_is_pie { executable } {
5501 set res [readelf_prints_pie]
5505 set readelf_program [gdb_find_readelf]
5506 set res [catch {exec $readelf_program -d $executable} output]
5510 set res [regexp -line {\(FLAGS_1\).*Flags:.* PIE($| )} $output]
5517 # Return true if a test should be skipped due to lack of floating
5518 # point support or GDB can't fetch the contents from floating point
5521 gdb_caching_proc gdb_skip_float_test {
5522 if [target_info exists gdb,skip_float_tests] {
5526 # There is an ARM kernel ptrace bug that hardware VFP registers
5527 # are not updated after GDB ptrace set VFP registers. The bug
5528 # was introduced by kernel commit 8130b9d7b9d858aa04ce67805e8951e3cb6e9b2f
5529 # in 2012 and is fixed in e2dfb4b880146bfd4b6aa8e138c0205407cebbaf
5530 # in May 2016. In other words, kernels older than 4.6.3, 4.4.14,
5531 # 4.1.27, 3.18.36, and 3.14.73 have this bug.
5532 # This kernel bug is detected by check how does GDB change the
5533 # program result by changing one VFP register.
5534 if { [istarget "arm*-*-linux*"] } {
5536 set compile_flags {debug nowarnings }
5538 # Set up, compile, and execute a test program having VFP
5540 set src [standard_temp_file arm_vfp[pid].c]
5541 set exe [standard_temp_file arm_vfp[pid].x]
5543 gdb_produce_source $src {
5548 asm ("vldr d0, [%0]" : : "r" (&d));
5549 asm ("vldr d1, [%0]" : : "r" (&d));
5550 asm (".global break_here\n"
5552 asm ("vcmp.f64 d0, d1\n"
5553 "vmrs APSR_nzcv, fpscr\n"
5554 "bne L_value_different\n"
5557 "L_value_different:\n"
5559 "L_end:\n" : "=r" (ret) :);
5561 /* Return $d0 != $d1. */
5566 verbose "compiling testfile $src" 2
5567 set lines [gdb_compile $src $exe executable $compile_flags]
5570 if ![string match "" $lines] then {
5571 verbose "testfile compilation failed, returning 1" 2
5575 # No error message, compilation succeeded so now run it via gdb.
5576 # Run the test up to 5 times to detect whether ptrace can
5577 # correctly update VFP registers or not.
5579 for {set i 0} {$i < 5} {incr i} {
5580 global gdb_prompt srcdir subdir
5584 gdb_reinitialize_dir $srcdir/$subdir
5588 gdb_test "break *break_here"
5589 gdb_continue_to_breakpoint "break_here"
5591 # Modify $d0 to a different value, so the exit code should
5593 gdb_test "set \$d0 = 5.0"
5595 set test "continue to exit"
5596 gdb_test_multiple "continue" "$test" {
5597 -re "exited with code 01.*$gdb_prompt $" {
5599 -re "exited normally.*$gdb_prompt $" {
5600 # However, the exit code is 0. That means something
5601 # wrong in setting VFP registers.
5609 remote_file build delete $exe
5611 return $skip_vfp_test
5616 # Print a message and return true if a test should be skipped
5617 # due to lack of stdio support.
5619 proc gdb_skip_stdio_test { msg } {
5620 if [target_info exists gdb,noinferiorio] {
5621 verbose "Skipping test '$msg': no inferior i/o."
5627 proc gdb_skip_bogus_test { msg } {
5631 # Return true if a test should be skipped due to lack of XML support
5633 # NOTE: This must be called while gdb is *not* running.
5635 gdb_caching_proc gdb_skip_xml_test {
5640 if { [info exists gdb_spawn_id] } {
5641 error "GDB must not be running in gdb_skip_xml_tests."
5644 set xml_file [gdb_remote_download host "${srcdir}/gdb.xml/trivial.xml"]
5648 gdb_test_multiple "set tdesc filename $xml_file" "" {
5649 -re ".*XML support was disabled at compile time.*$gdb_prompt $" {
5652 -re ".*$gdb_prompt $" { }
5658 # Return true if argv[0] is available.
5660 gdb_caching_proc gdb_has_argv0 {
5663 # Compile and execute a test program to check whether argv[0] is available.
5664 gdb_simple_compile has_argv0 {
5665 int main (int argc, char **argv) {
5672 proc gdb_has_argv0_1 { exe } {
5673 global srcdir subdir
5674 global gdb_prompt hex
5678 gdb_reinitialize_dir $srcdir/$subdir
5681 # Set breakpoint on main.
5682 gdb_test_multiple "break main" "break main" {
5683 -re "Breakpoint.*${gdb_prompt} $" {
5685 -re "${gdb_prompt} $" {
5692 gdb_test_multiple "" "run to main" {
5693 -re "Breakpoint.*${gdb_prompt} $" {
5695 -re "${gdb_prompt} $" {
5700 set old_elements "200"
5701 set test "show print elements"
5702 gdb_test_multiple $test $test {
5703 -re "Limit on string chars or array elements to print is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
5704 set old_elements $expect_out(1,string)
5707 set old_repeats "200"
5708 set test "show print repeats"
5709 gdb_test_multiple $test $test {
5710 -re "Threshold for repeated print elements is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
5711 set old_repeats $expect_out(1,string)
5714 gdb_test_no_output "set print elements unlimited" ""
5715 gdb_test_no_output "set print repeats unlimited" ""
5718 # Check whether argc is 1.
5719 gdb_test_multiple "p argc" "p argc" {
5720 -re " = 1\r\n${gdb_prompt} $" {
5722 gdb_test_multiple "p argv\[0\]" "p argv\[0\]" {
5723 -re " = $hex \".*[file tail $exe]\"\r\n${gdb_prompt} $" {
5726 -re "${gdb_prompt} $" {
5730 -re "${gdb_prompt} $" {
5734 gdb_test_no_output "set print elements $old_elements" ""
5735 gdb_test_no_output "set print repeats $old_repeats" ""
5740 set result [gdb_has_argv0_1 $obj]
5746 && ([istarget *-*-linux*]
5747 || [istarget *-*-freebsd*] || [istarget *-*-kfreebsd*]
5748 || [istarget *-*-netbsd*] || [istarget *-*-knetbsd*]
5749 || [istarget *-*-openbsd*]
5750 || [istarget *-*-darwin*]
5751 || [istarget *-*-solaris*]
5752 || [istarget *-*-aix*]
5753 || [istarget *-*-gnu*]
5754 || [istarget *-*-cygwin*] || [istarget *-*-mingw32*]
5755 || [istarget *-*-*djgpp*] || [istarget *-*-go32*]
5756 || [istarget *-wince-pe] || [istarget *-*-mingw32ce*]
5757 || [istarget *-*-symbianelf*]
5758 || [istarget *-*-osf*]
5759 || [istarget *-*-dicos*]
5760 || [istarget *-*-nto*]
5761 || [istarget *-*-*vms*]
5762 || [istarget *-*-lynx*178]) } {
5763 fail "argv\[0\] should be available on this target"
5769 # Note: the procedure gdb_gnu_strip_debug will produce an executable called
5770 # ${binfile}.dbglnk, which is just like the executable ($binfile) but without
5771 # the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
5772 # the name of a debuginfo only file. This file will be stored in the same
5775 # Functions for separate debug info testing
5777 # starting with an executable:
5778 # foo --> original executable
5780 # at the end of the process we have:
5781 # foo.stripped --> foo w/o debug info
5782 # foo.debug --> foo's debug info
5783 # foo --> like foo, but with a new .gnu_debuglink section pointing to foo.debug.
5785 # Fetch the build id from the file.
5786 # Returns "" if there is none.
5788 proc get_build_id { filename } {
5789 if { ([istarget "*-*-mingw*"]
5790 || [istarget *-*-cygwin*]) } {
5791 set objdump_program [gdb_find_objdump]
5792 set result [catch {set data [exec $objdump_program -p $filename | grep signature | cut "-d " -f4]} output]
5793 verbose "result is $result"
5794 verbose "output is $output"
5800 set tmp [standard_output_file "${filename}-tmp"]
5801 set objcopy_program [gdb_find_objcopy]
5802 set result [catch "exec $objcopy_program -j .note.gnu.build-id -O binary $filename $tmp" output]
5803 verbose "result is $result"
5804 verbose "output is $output"
5809 fconfigure $fi -translation binary
5810 # Skip the NOTE header.
5815 if ![string compare $data ""] then {
5818 # Convert it to hex.
5819 binary scan $data H* data
5824 # Return the build-id hex string (usually 160 bits as 40 hex characters)
5825 # converted to the form: .build-id/ab/cdef1234...89.debug
5826 # Return "" if no build-id found.
5827 proc build_id_debug_filename_get { filename } {
5828 set data [get_build_id $filename]
5829 if { $data == "" } {
5832 regsub {^..} $data {\0/} data
5833 return ".build-id/${data}.debug"
5836 # Create stripped files for DEST, replacing it. If ARGS is passed, it is a
5837 # list of optional flags. The only currently supported flag is no-main,
5838 # which removes the symbol entry for main from the separate debug file.
5840 # Function returns zero on success. Function will return non-zero failure code
5841 # on some targets not supporting separate debug info (such as i386-msdos).
5843 proc gdb_gnu_strip_debug { dest args } {
5845 # Use the first separate debug info file location searched by GDB so the
5846 # run cannot be broken by some stale file searched with higher precedence.
5847 set debug_file "${dest}.debug"
5849 set strip_to_file_program [transform strip]
5850 set objcopy_program [gdb_find_objcopy]
5852 set debug_link [file tail $debug_file]
5853 set stripped_file "${dest}.stripped"
5855 # Get rid of the debug info, and store result in stripped_file
5856 # something like gdb/testsuite/gdb.base/blah.stripped.
5857 set result [catch "exec $strip_to_file_program --strip-debug ${dest} -o ${stripped_file}" output]
5858 verbose "result is $result"
5859 verbose "output is $output"
5864 # Workaround PR binutils/10802:
5865 # Preserve the 'x' bit also for PIEs (Position Independent Executables).
5866 set perm [file attributes ${dest} -permissions]
5867 file attributes ${stripped_file} -permissions $perm
5869 # Get rid of everything but the debug info, and store result in debug_file
5870 # This will be in the .debug subdirectory, see above.
5871 set result [catch "exec $strip_to_file_program --only-keep-debug ${dest} -o ${debug_file}" output]
5872 verbose "result is $result"
5873 verbose "output is $output"
5878 # If no-main is passed, strip the symbol for main from the separate
5879 # file. This is to simulate the behavior of elfutils's eu-strip, which
5880 # leaves the symtab in the original file only. There's no way to get
5881 # objcopy or strip to remove the symbol table without also removing the
5882 # debugging sections, so this is as close as we can get.
5883 if { [llength $args] == 1 && [lindex $args 0] == "no-main" } {
5884 set result [catch "exec $objcopy_program -N main ${debug_file} ${debug_file}-tmp" output]
5885 verbose "result is $result"
5886 verbose "output is $output"
5890 file delete "${debug_file}"
5891 file rename "${debug_file}-tmp" "${debug_file}"
5894 # Link the two previous output files together, adding the .gnu_debuglink
5895 # section to the stripped_file, containing a pointer to the debug_file,
5896 # save the new file in dest.
5897 # This will be the regular executable filename, in the usual location.
5898 set result [catch "exec $objcopy_program --add-gnu-debuglink=${debug_file} ${stripped_file} ${dest}" output]
5899 verbose "result is $result"
5900 verbose "output is $output"
5905 # Workaround PR binutils/10802:
5906 # Preserve the 'x' bit also for PIEs (Position Independent Executables).
5907 set perm [file attributes ${stripped_file} -permissions]
5908 file attributes ${dest} -permissions $perm
5913 # Test the output of GDB_COMMAND matches the pattern obtained
5914 # by concatenating all elements of EXPECTED_LINES. This makes
5915 # it possible to split otherwise very long string into pieces.
5916 # If third argument TESTNAME is not empty, it's used as the name of the
5917 # test to be printed on pass/fail.
5918 proc help_test_raw { gdb_command expected_lines {testname {}} } {
5919 set expected_output [join $expected_lines ""]
5920 if {$testname != {}} {
5921 gdb_test "${gdb_command}" "${expected_output}" $testname
5925 gdb_test "${gdb_command}" "${expected_output}"
5928 # A regexp that matches the end of help CLASS|PREFIX_COMMAND
5929 set help_list_trailer {
5930 "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n]+"
5931 "Type \"apropos -v word\" for full documentation of commands related to \"word\"\.[\r\n]+"
5932 "Command name abbreviations are allowed if unambiguous\."
5935 # Test the output of "help COMMAND_CLASS". EXPECTED_INITIAL_LINES
5936 # are regular expressions that should match the beginning of output,
5937 # before the list of commands in that class.
5938 # LIST_OF_COMMANDS are regular expressions that should match the
5939 # list of commands in that class. If empty, the command list will be
5940 # matched automatically. The presence of standard epilogue will be tested
5942 # If last argument TESTNAME is not empty, it's used as the name of the
5943 # test to be printed on pass/fail.
5944 # Notice that the '[' and ']' characters don't need to be escaped for strings
5945 # wrapped in {} braces.
5946 proc test_class_help { command_class expected_initial_lines {list_of_commands {}} {testname {}} } {
5947 global help_list_trailer
5948 if {[llength $list_of_commands]>0} {
5949 set l_list_of_commands {"List of commands:[\r\n]+[\r\n]+"}
5950 set l_list_of_commands [concat $l_list_of_commands $list_of_commands]
5951 set l_list_of_commands [concat $l_list_of_commands {"[\r\n]+[\r\n]+"}]
5953 set l_list_of_commands {"List of commands\:.*[\r\n]+"}
5956 "Type \"help\" followed by command name for full documentation\.[\r\n]+"
5958 set l_entire_body [concat $expected_initial_lines $l_list_of_commands \
5959 $l_stock_body $help_list_trailer]
5961 help_test_raw "help ${command_class}" $l_entire_body $testname
5964 # Like test_class_help but specialised to test "help user-defined".
5965 proc test_user_defined_class_help { {list_of_commands {}} {testname {}} } {
5966 test_class_help "user-defined" {
5967 "User-defined commands\.[\r\n]+"
5968 "The commands in this class are those defined by the user\.[\r\n]+"
5969 "Use the \"define\" command to define a command\.[\r\n]+"
5970 } $list_of_commands $testname
5974 # COMMAND_LIST should have either one element -- command to test, or
5975 # two elements -- abbreviated command to test, and full command the first
5976 # element is abbreviation of.
5977 # The command must be a prefix command. EXPECTED_INITIAL_LINES
5978 # are regular expressions that should match the beginning of output,
5979 # before the list of subcommands. The presence of
5980 # subcommand list and standard epilogue will be tested automatically.
5981 proc test_prefix_command_help { command_list expected_initial_lines args } {
5982 global help_list_trailer
5983 set command [lindex $command_list 0]
5984 if {[llength $command_list]>1} {
5985 set full_command [lindex $command_list 1]
5987 set full_command $command
5989 # Use 'list' and not just {} because we want variables to
5990 # be expanded in this list.
5991 set l_stock_body [list\
5992 "List of $full_command subcommands\:.*\[\r\n\]+"\
5993 "Type \"help $full_command\" followed by $full_command subcommand name for full documentation\.\[\r\n\]+"]
5994 set l_entire_body [concat $expected_initial_lines $l_stock_body $help_list_trailer]
5995 if {[llength $args]>0} {
5996 help_test_raw "help ${command}" $l_entire_body [lindex $args 0]
5998 help_test_raw "help ${command}" $l_entire_body
6002 # Build executable named EXECUTABLE from specifications that allow
6003 # different options to be passed to different sub-compilations.
6004 # TESTNAME is the name of the test; this is passed to 'untested' if
6006 # OPTIONS is passed to the final link, using gdb_compile. If OPTIONS
6007 # contains the option "pthreads", then gdb_compile_pthreads is used.
6008 # ARGS is a flat list of source specifications, of the form:
6009 # { SOURCE1 OPTIONS1 [ SOURCE2 OPTIONS2 ]... }
6010 # Each SOURCE is compiled to an object file using its OPTIONS,
6011 # using gdb_compile.
6012 # Returns 0 on success, -1 on failure.
6013 proc build_executable_from_specs {testname executable options args} {
6017 set binfile [standard_output_file $executable]
6020 if { [lsearch -exact $options "c++"] >= 0 } {
6021 set info_options "c++"
6023 if [get_compiler_info ${info_options}] {
6027 set func gdb_compile
6028 set func_index [lsearch -regexp $options {^(pthreads|shlib|shlib_pthreads|openmp)$}]
6029 if {$func_index != -1} {
6030 set func "${func}_[lindex $options $func_index]"
6033 # gdb_compile_shlib and gdb_compile_shlib_pthreads do not use the 3rd
6034 # parameter. They also requires $sources while gdb_compile and
6035 # gdb_compile_pthreads require $objects. Moreover they ignore any options.
6036 if [string match gdb_compile_shlib* $func] {
6038 foreach {s local_options} $args {
6039 if { [regexp "^/" "$s"] } then {
6040 lappend sources_path "$s"
6042 lappend sources_path "$srcdir/$subdir/$s"
6045 set ret [$func $sources_path "${binfile}" $options]
6046 } elseif {[lsearch -exact $options rust] != -1} {
6048 foreach {s local_options} $args {
6049 if { [regexp "^/" "$s"] } then {
6050 lappend sources_path "$s"
6052 lappend sources_path "$srcdir/$subdir/$s"
6055 set ret [gdb_compile_rust $sources_path "${binfile}" $options]
6059 foreach {s local_options} $args {
6060 if { ! [regexp "^/" "$s"] } then {
6061 set s "$srcdir/$subdir/$s"
6063 if { [$func "${s}" "${binfile}${i}.o" object $local_options] != "" } {
6067 lappend objects "${binfile}${i}.o"
6070 set ret [$func $objects "${binfile}" executable $options]
6080 # Build executable named EXECUTABLE, from SOURCES. If SOURCES are not
6081 # provided, uses $EXECUTABLE.c. The TESTNAME paramer is the name of test
6082 # to pass to untested, if something is wrong. OPTIONS are passed
6083 # to gdb_compile directly.
6084 proc build_executable { testname executable {sources ""} {options {debug}} } {
6085 if {[llength $sources]==0} {
6086 set sources ${executable}.c
6089 set arglist [list $testname $executable $options]
6090 foreach source $sources {
6091 lappend arglist $source $options
6094 return [eval build_executable_from_specs $arglist]
6097 # Starts fresh GDB binary and loads an optional executable into GDB.
6098 # Usage: clean_restart [executable]
6099 # EXECUTABLE is the basename of the binary.
6101 proc clean_restart { args } {
6105 if { [llength $args] > 1 } {
6106 error "bad number of args: [llength $args]"
6111 gdb_reinitialize_dir $srcdir/$subdir
6113 if { [llength $args] >= 1 } {
6114 set executable [lindex $args 0]
6115 set binfile [standard_output_file ${executable}]
6120 # Prepares for testing by calling build_executable_full, then
6122 # TESTNAME is the name of the test.
6123 # Each element in ARGS is a list of the form
6124 # { EXECUTABLE OPTIONS SOURCE_SPEC... }
6125 # These are passed to build_executable_from_specs, which see.
6126 # The last EXECUTABLE is passed to clean_restart.
6127 # Returns 0 on success, non-zero on failure.
6128 proc prepare_for_testing_full {testname args} {
6129 foreach spec $args {
6130 if {[eval build_executable_from_specs [list $testname] $spec] == -1} {
6133 set executable [lindex $spec 0]
6135 clean_restart $executable
6139 # Prepares for testing, by calling build_executable, and then clean_restart.
6140 # Please refer to build_executable for parameter description.
6141 proc prepare_for_testing { testname executable {sources ""} {options {debug}}} {
6143 if {[build_executable $testname $executable $sources $options] == -1} {
6146 clean_restart $executable
6151 # Retrieve the value of EXP in the inferior, represented in format
6152 # specified in FMT (using "printFMT"). DEFAULT is used as fallback if
6153 # print fails. TEST is the test message to use. It can be omitted,
6154 # in which case a test message is built from EXP.
6156 proc get_valueof { fmt exp default {test ""} } {
6160 set test "get valueof \"${exp}\""
6164 gdb_test_multiple "print${fmt} ${exp}" "$test" {
6165 -re "\\$\[0-9\]* = (\[^\r\n\]*)\[\r\n\]*$gdb_prompt $" {
6166 set val $expect_out(1,string)
6170 fail "$test (timeout)"
6176 # Retrieve the value of local var EXP in the inferior. DEFAULT is used as
6177 # fallback if print fails. TEST is the test message to use. It can be
6178 # omitted, in which case a test message is built from EXP.
6180 proc get_local_valueof { exp default {test ""} } {
6184 set test "get local valueof \"${exp}\""
6188 gdb_test_multiple "info locals ${exp}" "$test" {
6189 -re "$exp = (\[^\r\n\]*)\[\r\n\]*$gdb_prompt $" {
6190 set val $expect_out(1,string)
6194 fail "$test (timeout)"
6200 # Retrieve the value of EXP in the inferior, as a signed decimal value
6201 # (using "print /d"). DEFAULT is used as fallback if print fails.
6202 # TEST is the test message to use. It can be omitted, in which case
6203 # a test message is built from EXP.
6205 proc get_integer_valueof { exp default {test ""} } {
6209 set test "get integer valueof \"${exp}\""
6213 gdb_test_multiple "print /d ${exp}" "$test" {
6214 -re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" {
6215 set val $expect_out(1,string)
6219 fail "$test (timeout)"
6225 # Retrieve the value of EXP in the inferior, as an hexadecimal value
6226 # (using "print /x"). DEFAULT is used as fallback if print fails.
6227 # TEST is the test message to use. It can be omitted, in which case
6228 # a test message is built from EXP.
6230 proc get_hexadecimal_valueof { exp default {test ""} } {
6234 set test "get hexadecimal valueof \"${exp}\""
6238 gdb_test_multiple "print /x ${exp}" $test {
6239 -re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
6240 set val $expect_out(1,string)
6247 # Retrieve the size of TYPE in the inferior, as a decimal value. DEFAULT
6248 # is used as fallback if print fails. TEST is the test message to use.
6249 # It can be omitted, in which case a test message is 'sizeof (TYPE)'.
6251 proc get_sizeof { type default {test ""} } {
6252 return [get_integer_valueof "sizeof (${type})" $default $test]
6255 proc get_target_charset { } {
6258 gdb_test_multiple "show target-charset" "" {
6259 -re "The target character set is \"auto; currently (\[^\"\]*)\".*$gdb_prompt $" {
6260 return $expect_out(1,string)
6262 -re "The target character set is \"(\[^\"\]*)\".*$gdb_prompt $" {
6263 return $expect_out(1,string)
6267 # Pick a reasonable default.
6268 warning "Unable to read target-charset."
6272 # Get the address of VAR.
6274 proc get_var_address { var } {
6275 global gdb_prompt hex
6277 # Match output like:
6279 # $5 = (int (*)()) 0
6280 # $6 = (int (*)()) 0x24 <function_bar>
6282 gdb_test_multiple "print &${var}" "get address of ${var}" {
6283 -re "\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $"
6285 pass "get address of ${var}"
6286 if { $expect_out(1,string) == "0" } {
6289 return $expect_out(1,string)
6296 # Return the frame number for the currently selected frame
6297 proc get_current_frame_number {{test_name ""}} {
6300 if { $test_name == "" } {
6301 set test_name "get current frame number"
6304 gdb_test_multiple "frame" $test_name {
6305 -re "#(\[0-9\]+) .*$gdb_prompt $" {
6306 set frame_num $expect_out(1,string)
6312 # Get the current value for remotetimeout and return it.
6313 proc get_remotetimeout { } {
6317 gdb_test_multiple "show remotetimeout" "" {
6318 -re "Timeout limit to wait for target to respond is ($decimal).*$gdb_prompt $" {
6319 return $expect_out(1,string)
6323 # Pick the default that gdb uses
6324 warning "Unable to read remotetimeout"
6328 # Set the remotetimeout to the specified timeout. Nothing is returned.
6329 proc set_remotetimeout { timeout } {
6332 gdb_test_multiple "set remotetimeout $timeout" "" {
6333 -re "$gdb_prompt $" {
6334 verbose "Set remotetimeout to $timeout\n"
6339 # Get the target's current endianness and return it.
6340 proc get_endianness { } {
6343 gdb_test_multiple "show endian" "determine endianness" {
6344 -re ".* (little|big) endian.*\r\n$gdb_prompt $" {
6346 return $expect_out(1,string)
6352 # ROOT and FULL are file names. Returns the relative path from ROOT
6353 # to FULL. Note that FULL must be in a subdirectory of ROOT.
6354 # For example, given ROOT = /usr/bin and FULL = /usr/bin/ls, this
6357 proc relative_filename {root full} {
6358 set root_split [file split $root]
6359 set full_split [file split $full]
6361 set len [llength $root_split]
6363 if {[eval file join $root_split]
6364 != [eval file join [lrange $full_split 0 [expr {$len - 1}]]]} {
6365 error "$full not a subdir of $root"
6368 return [eval file join [lrange $full_split $len end]]
6371 # If GDB_PARALLEL exists, then set up the parallel-mode directories.
6372 if {[info exists GDB_PARALLEL]} {
6373 if {[is_remote host]} {
6377 [make_gdb_parallel_path outputs] \
6378 [make_gdb_parallel_path temp] \
6379 [make_gdb_parallel_path cache]
6383 proc core_find {binfile {deletefiles {}} {arg ""}} {
6384 global objdir subdir
6386 set destcore "$binfile.core"
6387 file delete $destcore
6389 # Create a core file named "$destcore" rather than just "core", to
6390 # avoid problems with sys admin types that like to regularly prune all
6391 # files named "core" from the system.
6393 # Arbitrarily try setting the core size limit to "unlimited" since
6394 # this does not hurt on systems where the command does not work and
6395 # allows us to generate a core on systems where it does.
6397 # Some systems append "core" to the name of the program; others append
6398 # the name of the program to "core"; still others (like Linux, as of
6399 # May 2003) create cores named "core.PID". In the latter case, we
6400 # could have many core files lying around, and it may be difficult to
6401 # tell which one is ours, so let's run the program in a subdirectory.
6403 set coredir [standard_output_file coredir.[getpid]]
6405 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile} ${arg}; true) >/dev/null 2>&1\""
6406 # remote_exec host "${binfile}"
6407 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
6408 if [remote_file build exists $i] {
6409 remote_exec build "mv $i $destcore"
6413 # Check for "core.PID".
6414 if { $found == 0 } {
6415 set names [glob -nocomplain -directory $coredir core.*]
6416 if {[llength $names] == 1} {
6417 set corefile [file join $coredir [lindex $names 0]]
6418 remote_exec build "mv $corefile $destcore"
6422 if { $found == 0 } {
6423 # The braindamaged HPUX shell quits after the ulimit -c above
6424 # without executing ${binfile}. So we try again without the
6425 # ulimit here if we didn't find a core file above.
6426 # Oh, I should mention that any "braindamaged" non-Unix system has
6427 # the same problem. I like the cd bit too, it's really neat'n stuff.
6428 catch "system \"(cd ${objdir}/${subdir}; ${binfile}; true) >/dev/null 2>&1\""
6429 foreach i "${objdir}/${subdir}/core ${objdir}/${subdir}/core.coremaker.c ${binfile}.core" {
6430 if [remote_file build exists $i] {
6431 remote_exec build "mv $i $destcore"
6437 # Try to clean up after ourselves.
6438 foreach deletefile $deletefiles {
6439 remote_file build delete [file join $coredir $deletefile]
6441 remote_exec build "rmdir $coredir"
6443 if { $found == 0 } {
6444 warning "can't generate a core file - core tests suppressed - check ulimit -c"
6450 # gdb_target_symbol_prefix compiles a test program and then examines
6451 # the output from objdump to determine the prefix (such as underscore)
6452 # for linker symbol prefixes.
6454 gdb_caching_proc gdb_target_symbol_prefix {
6455 # Compile a simple test program...
6456 set src { int main() { return 0; } }
6457 if {![gdb_simple_compile target_symbol_prefix $src executable]} {
6463 set objdump_program [gdb_find_objdump]
6464 set result [catch "exec $objdump_program --syms $obj" output]
6467 && ![regexp -lineanchor \
6468 { ([^ a-zA-Z0-9]*)main$} $output dummy prefix] } {
6469 verbose "gdb_target_symbol_prefix: Could not find main in objdump output; returning null prefix" 2
6477 # Return 1 if target supports scheduler locking, otherwise return 0.
6479 gdb_caching_proc target_supports_scheduler_locking {
6482 set me "gdb_target_supports_scheduler_locking"
6484 set src { int main() { return 0; } }
6485 if {![gdb_simple_compile $me $src executable]} {
6494 set supports_schedule_locking -1
6495 set current_schedule_locking_mode ""
6497 set test "reading current scheduler-locking mode"
6498 gdb_test_multiple "show scheduler-locking" $test {
6499 -re "Mode for locking scheduler during execution is \"(\[\^\"\]*)\".*$gdb_prompt" {
6500 set current_schedule_locking_mode $expect_out(1,string)
6502 -re "$gdb_prompt $" {
6503 set supports_schedule_locking 0
6506 set supports_schedule_locking 0
6510 if { $supports_schedule_locking == -1 } {
6511 set test "checking for scheduler-locking support"
6512 gdb_test_multiple "set scheduler-locking $current_schedule_locking_mode" $test {
6513 -re "Target '\[^'\]+' cannot support this command\..*$gdb_prompt $" {
6514 set supports_schedule_locking 0
6516 -re "$gdb_prompt $" {
6517 set supports_schedule_locking 1
6520 set supports_schedule_locking 0
6525 if { $supports_schedule_locking == -1 } {
6526 set supports_schedule_locking 0
6530 remote_file build delete $obj
6531 verbose "$me: returning $supports_schedule_locking" 2
6532 return $supports_schedule_locking
6535 # Return 1 if compiler supports use of nested functions. Otherwise,
6538 gdb_caching_proc support_nested_function_tests {
6539 # Compile a test program containing a nested function
6540 return [gdb_can_simple_compile nested_func {
6550 # gdb_target_symbol returns the provided symbol with the correct prefix
6551 # prepended. (See gdb_target_symbol_prefix, above.)
6553 proc gdb_target_symbol { symbol } {
6554 set prefix [gdb_target_symbol_prefix]
6555 return "${prefix}${symbol}"
6558 # gdb_target_symbol_prefix_flags_asm returns a string that can be
6559 # added to gdb_compile options to define the C-preprocessor macro
6560 # SYMBOL_PREFIX with a value that can be prepended to symbols
6561 # for targets which require a prefix, such as underscore.
6563 # This version (_asm) defines the prefix without double quotes
6564 # surrounding the prefix. It is used to define the macro
6565 # SYMBOL_PREFIX for assembly language files. Another version, below,
6566 # is used for symbols in inline assembler in C/C++ files.
6568 # The lack of quotes in this version (_asm) makes it possible to
6569 # define supporting macros in the .S file. (The version which
6570 # uses quotes for the prefix won't work for such files since it's
6571 # impossible to define a quote-stripping macro in C.)
6573 # It's possible to use this version (_asm) for C/C++ source files too,
6574 # but a string is usually required in such files; providing a version
6575 # (no _asm) which encloses the prefix with double quotes makes it
6576 # somewhat easier to define the supporting macros in the test case.
6578 proc gdb_target_symbol_prefix_flags_asm {} {
6579 set prefix [gdb_target_symbol_prefix]
6580 if {$prefix ne ""} {
6581 return "additional_flags=-DSYMBOL_PREFIX=$prefix"
6587 # gdb_target_symbol_prefix_flags returns the same string as
6588 # gdb_target_symbol_prefix_flags_asm, above, but with the prefix
6589 # enclosed in double quotes if there is a prefix.
6591 # See the comment for gdb_target_symbol_prefix_flags_asm for an
6592 # extended discussion.
6594 proc gdb_target_symbol_prefix_flags {} {
6595 set prefix [gdb_target_symbol_prefix]
6596 if {$prefix ne ""} {
6597 return "additional_flags=-DSYMBOL_PREFIX=\"$prefix\""
6603 # A wrapper for 'remote_exec host' that passes or fails a test.
6604 # Returns 0 if all went well, nonzero on failure.
6605 # TEST is the name of the test, other arguments are as for remote_exec.
6607 proc run_on_host { test program args } {
6608 verbose -log "run_on_host: $program $args"
6609 # remote_exec doesn't work properly if the output is set but the
6610 # input is the empty string -- so replace an empty input with
6612 if {[llength $args] > 1 && [lindex $args 1] == ""} {
6613 set args [lreplace $args 1 1 "/dev/null"]
6615 set result [eval remote_exec host [list $program] $args]
6616 verbose "result is $result"
6617 set status [lindex $result 0]
6618 set output [lindex $result 1]
6623 verbose -log "run_on_host failed: $output"
6629 # Return non-zero if "board_info debug_flags" mentions Fission.
6630 # http://gcc.gnu.org/wiki/DebugFission
6631 # Fission doesn't support everything yet.
6632 # This supports working around bug 15954.
6634 proc using_fission { } {
6635 set debug_flags [board_info [target_info name] debug_flags]
6636 return [regexp -- "-gsplit-dwarf" $debug_flags]
6639 # Search the caller's ARGS list and set variables according to the list of
6640 # valid options described by ARGSET.
6642 # The first member of each one- or two-element list in ARGSET defines the
6643 # name of a variable that will be added to the caller's scope.
6645 # If only one element is given to describe an option, it the value is
6646 # 0 if the option is not present in (the caller's) ARGS or 1 if
6649 # If two elements are given, the second element is the default value of
6650 # the variable. This is then overwritten if the option exists in ARGS.
6652 # Any parse_args elements in (the caller's) ARGS will be removed, leaving
6653 # any optional components.
6656 # proc myproc {foo args} {
6657 # parse_args {{bar} {baz "abc"} {qux}}
6660 # myproc ABC -bar -baz DEF peanut butter
6661 # will define the following variables in myproc:
6662 # foo (=ABC), bar (=1), baz (=DEF), and qux (=0)
6663 # args will be the list {peanut butter}
6665 proc parse_args { argset } {
6668 foreach argument $argset {
6669 if {[llength $argument] == 1} {
6670 # No default specified, so we assume that we should set
6671 # the value to 1 if the arg is present and 0 if it's not.
6672 # It is assumed that no value is given with the argument.
6673 set result [lsearch -exact $args "-$argument"]
6674 if {$result != -1} then {
6675 uplevel 1 [list set $argument 1]
6676 set args [lreplace $args $result $result]
6678 uplevel 1 [list set $argument 0]
6680 } elseif {[llength $argument] == 2} {
6681 # There are two items in the argument. The second is a
6682 # default value to use if the item is not present.
6683 # Otherwise, the variable is set to whatever is provided
6684 # after the item in the args.
6685 set arg [lindex $argument 0]
6686 set result [lsearch -exact $args "-[lindex $arg 0]"]
6687 if {$result != -1} then {
6688 uplevel 1 [list set $arg [lindex $args [expr $result+1]]]
6689 set args [lreplace $args $result [expr $result+1]]
6691 uplevel 1 [list set $arg [lindex $argument 1]]
6694 error "Badly formatted argument \"$argument\" in argument set"
6698 # The remaining args should be checked to see that they match the
6699 # number of items expected to be passed into the procedure...
6702 # Capture the output of COMMAND in a string ignoring PREFIX (a regexp);
6703 # return that string.
6705 proc capture_command_output { command prefix } {
6709 set output_string ""
6710 gdb_test_multiple "$command" "capture_command_output for $command" {
6711 -re "[string_to_regexp ${command}]\[\r\n\]+${prefix}(.*)\[\r\n\]+$gdb_prompt $" {
6712 set output_string $expect_out(1,string)
6715 return $output_string
6718 # A convenience function that joins all the arguments together, with a
6719 # regexp that matches exactly one end of line in between each argument.
6720 # This function is ideal to write the expected output of a GDB command
6721 # that generates more than a couple of lines, as this allows us to write
6722 # each line as a separate string, which is easier to read by a human
6725 proc multi_line { args } {
6726 return [join $args "\r\n"]
6729 # Similar to the above, but while multi_line is meant to be used to
6730 # match GDB output, this one is meant to be used to build strings to
6731 # send as GDB input.
6733 proc multi_line_input { args } {
6734 return [join $args "\n"]
6737 # Return the version of the DejaGnu framework.
6739 # The return value is a list containing the major, minor and patch version
6740 # numbers. If the version does not contain a minor or patch number, they will
6741 # be set to 0. For example:
6747 proc dejagnu_version { } {
6748 # The frame_version variable is defined by DejaGnu, in runtest.exp.
6749 global frame_version
6751 verbose -log "DejaGnu version: $frame_version"
6752 verbose -log "Expect version: [exp_version]"
6753 verbose -log "Tcl version: [info tclversion]"
6755 set dg_ver [split $frame_version .]
6757 while { [llength $dg_ver] < 3 } {
6764 # Define user-defined command COMMAND using the COMMAND_LIST as the
6765 # command's definition. The terminating "end" is added automatically.
6767 proc gdb_define_cmd {command command_list} {
6770 set input [multi_line_input {*}$command_list "end"]
6771 set test "define $command"
6773 gdb_test_multiple "define $command" $test {
6775 gdb_test_multiple $input $test {
6776 -re "\r\n$gdb_prompt " {
6783 # Override the 'cd' builtin with a version that ensures that the
6784 # log file keeps pointing at the same file. We need this because
6785 # unfortunately the path to the log file is recorded using an
6786 # relative path name, and, we sometimes need to close/reopen the log
6787 # after changing the current directory. See get_compiler_info.
6789 rename cd builtin_cd
6793 # Get the existing log file flags.
6794 set log_file_info [log_file -info]
6796 # Split the flags into args and file name.
6797 set log_file_flags ""
6798 set log_file_file ""
6799 foreach arg [ split "$log_file_info" " "] {
6800 if [string match "-*" $arg] {
6801 lappend log_file_flags $arg
6803 lappend log_file_file $arg
6807 # If there was an existing file, ensure it is an absolute path, and then
6809 if { $log_file_file != "" } {
6810 set log_file_file [file normalize $log_file_file]
6812 log_file $log_file_flags "$log_file_file"
6815 # Call the builtin version of cd.
6819 # Return a list of all languages supported by GDB, suitable for use in
6820 # 'set language NAME'. This doesn't include either the 'local' or
6822 proc gdb_supported_languages {} {
6823 return [list c objective-c c++ d go fortran modula-2 asm pascal \
6824 opencl rust minimal ada]
6827 # Check if debugging is enabled for gdb.
6829 proc gdb_debug_enabled { } {
6832 # If not already read, get the debug setting from environment or board setting.
6833 if {![info exists gdbdebug]} {
6835 if [info exists env(GDB_DEBUG)] {
6836 set gdbdebug $env(GDB_DEBUG)
6837 } elseif [target_info exists gdb,debug] {
6838 set gdbdebug [target_info gdb,debug]
6844 # Ensure it not empty.
6845 return [expr { $gdbdebug != "" }]
6848 # Turn on debugging if enabled, or reset if already on.
6850 proc gdb_debug_init { } {
6854 if ![gdb_debug_enabled] {
6858 # First ensure logging is off.
6859 send_gdb "set logging off\n"
6861 set debugfile [standard_output_file gdb.debug]
6862 send_gdb "set logging file $debugfile\n"
6864 send_gdb "set logging debugredirect\n"
6867 foreach entry [split $gdbdebug ,] {
6868 send_gdb "set debug $entry 1\n"
6871 # Now that everything is set, enable logging.
6872 send_gdb "set logging on\n"
6874 -re "Copying output to $debugfile.*Redirecting debug output to $debugfile.*$gdb_prompt $" {}
6875 timeout { warning "Couldn't set logging file" }
6879 # Check if debugging is enabled for gdbserver.
6881 proc gdbserver_debug_enabled { } {
6882 # Always disabled for GDB only setups.
6886 # Open the file for logging gdb input
6888 proc gdb_stdin_log_init { } {
6891 if {[info exists in_file]} {
6892 # Close existing file.
6893 catch "close $in_file"
6896 set logfile [standard_output_file_with_gdb_instance gdb.in]
6897 set in_file [open $logfile w]
6900 # Write to the file for logging gdb input.
6901 # TYPE can be one of the following:
6902 # "standard" : Default. Standard message written to the log
6903 # "answer" : Answer to a question (eg "Y"). Not written the log.
6904 # "optional" : Optional message. Not written to the log.
6906 proc gdb_stdin_log_write { message {type standard} } {
6909 if {![info exists in_file]} {
6913 # Check message types.
6914 switch -regexp -- $type {
6924 puts -nonewline $in_file "$message"
6927 # Write the command line used to invocate gdb to the cmd file.
6929 proc gdb_write_cmd_file { cmdline } {
6930 set logfile [standard_output_file_with_gdb_instance gdb.cmd]
6931 set cmd_file [open $logfile w]
6932 puts $cmd_file $cmdline
6933 catch "close $cmd_file"
6936 # Compare contents of FILE to string STR. Pass with MSG if equal, otherwise
6939 proc cmp_file_string { file str msg } {
6940 if { ![file exists $file]} {
6945 set caught_error [catch {
6946 set fp [open "$file" r]
6947 set file_contents [read $fp]
6950 if { $caught_error } then {
6951 error "$error_message"
6956 if { $file_contents == $str } {
6963 # Does the compiler support CTF debug output using '-gt' compiler
6964 # flag? If not then we should skip these tests.
6966 gdb_caching_proc skip_ctf_tests {
6967 return ![gdb_can_simple_compile ctfdebug {
6971 } executable "additional_flags=-gt"]
6974 # Return 1 if compiler supports -gstatement-frontiers. Otherwise,
6977 gdb_caching_proc supports_statement_frontiers {
6978 return [gdb_can_simple_compile supports_statement_frontiers {
6982 } executable "additional_flags=-gstatement-frontiers"]
6985 # Return 1 if symbols were read in using -readnow. Otherwise, return 0.
6988 set cmd "maint print objfiles"
6989 gdb_test_multiple $cmd "" {
6990 -re -wrap "\r\n.gdb_index: faked for \"readnow\"\r\n.*" {
7001 # Verify that partial symtab expansion for $filename has state $readin.
7003 proc verify_psymtab_expanded { filename readin } {
7006 set cmd "maint info psymtab"
7007 set test "$cmd: $filename: $readin"
7008 set re [multi_line \
7009 " \{ psymtab \[^\r\n\]*$filename\[^\r\n\]*" \
7013 gdb_test_multiple $cmd $test {
7014 -re "$cmd\r\n$gdb_prompt $" {
7015 unsupported $gdb_test_name
7023 # Always load compatibility stuff.