1 # Copyright 1992-2013 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"
33 if [info exists TOOL_EXECUTABLE] {
34 set GDB $TOOL_EXECUTABLE
36 if ![info exists GDB] {
37 if ![is_remote host] {
38 set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
40 set GDB [transform gdb]
43 verbose "using GDB = $GDB" 2
45 # GDBFLAGS is available for the user to set on the command line.
46 # E.g. make check RUNTESTFLAGS=GDBFLAGS=mumble
47 # Testcases may use it to add additional flags, but they must:
48 # - append new flags, not overwrite
49 # - restore the original value when done
51 if ![info exists GDBFLAGS] {
54 verbose "using GDBFLAGS = $GDBFLAGS" 2
56 # Make the build data directory available to tests.
57 set BUILD_DATA_DIRECTORY "[pwd]/../data-directory"
59 # INTERNAL_GDBFLAGS contains flags that the testsuite requires.
60 global INTERNAL_GDBFLAGS
61 if ![info exists INTERNAL_GDBFLAGS] {
62 set INTERNAL_GDBFLAGS "-nw -nx -data-directory $BUILD_DATA_DIRECTORY"
65 # The variable gdb_prompt is a regexp which matches the gdb prompt.
66 # Set it if it is not already set.
68 if ![info exists gdb_prompt] then {
69 set gdb_prompt "\[(\]gdb\[)\]"
72 # The variable fullname_syntax_POSIX is a regexp which matches a POSIX
73 # absolute path ie. /foo/
74 set fullname_syntax_POSIX {/[^\n]*/}
75 # The variable fullname_syntax_UNC is a regexp which matches a Windows
76 # UNC path ie. \\D\foo\
77 set fullname_syntax_UNC {\\\\[^\\]+\\[^\n]+\\}
78 # The variable fullname_syntax_DOS_CASE is a regexp which matches a
79 # particular DOS case that GDB most likely will output
80 # ie. \foo\, but don't match \\.*\
81 set fullname_syntax_DOS_CASE {\\[^\\][^\n]*\\}
82 # The variable fullname_syntax_DOS is a regexp which matches a DOS path
83 # ie. a:\foo\ && a:foo\
84 set fullname_syntax_DOS {[a-zA-Z]:[^\n]*\\}
85 # The variable fullname_syntax is a regexp which matches what GDB considers
86 # an absolute path. It is currently debatable if the Windows style paths
87 # d:foo and \abc should be considered valid as an absolute path.
88 # Also, the purpse of this regexp is not to recognize a well formed
89 # absolute path, but to say with certainty that a path is absolute.
90 set fullname_syntax "($fullname_syntax_POSIX|$fullname_syntax_UNC|$fullname_syntax_DOS_CASE|$fullname_syntax_DOS)"
92 # Needed for some tests under Cygwin.
96 if ![info exists env(EXEEXT)] {
99 set EXEEXT $env(EXEEXT)
104 set inferior_exited_re "(\\\[Inferior \[0-9\]+ \\(.*\\) exited)"
106 ### Only procedures should come after this point.
109 # gdb_version -- extract and print the version number of GDB
111 proc default_gdb_version {} {
113 global INTERNAL_GDBFLAGS GDBFLAGS
117 if {[info exists inotify_pid]} {
118 eval exec kill $inotify_pid
121 set output [remote_exec host "$GDB $INTERNAL_GDBFLAGS --version"]
122 set tmp [lindex $output 1]
124 regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
125 if ![is_remote host] {
126 clone_output "[which $GDB] version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
128 clone_output "$GDB on remote host version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
132 proc gdb_version { } {
133 return [default_gdb_version]
137 # gdb_unload -- unload a file if one is loaded
138 # Return 0 on success, -1 on error.
147 -re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue }
148 -re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue }
149 -re "A program is being debugged already.*Are you sure you want to change the file.*y or n. $" {
153 -re "Discard symbol table from .*y or n.*$" {
157 -re "$gdb_prompt $" {}
159 perror "couldn't unload file in $GDB (timeout)."
166 # Many of the tests depend on setting breakpoints at various places and
167 # running until that breakpoint is reached. At times, we want to start
168 # with a clean-slate with respect to breakpoints, so this utility proc
169 # lets us do this without duplicating this code everywhere.
172 proc delete_breakpoints {} {
175 # we need a larger timeout value here or this thing just confuses
176 # itself. May need a better implementation if possible. - guo
178 send_gdb "delete breakpoints\n"
180 -re "Delete all breakpoints.*y or n.*$" {
184 -re "$gdb_prompt $" { # This happens if there were no breakpoints
186 timeout { perror "Delete all breakpoints in delete_breakpoints (timeout)" ; return }
188 send_gdb "info breakpoints\n"
190 -re "No breakpoints or watchpoints..*$gdb_prompt $" {}
191 -re "$gdb_prompt $" { perror "breakpoints not deleted" ; return }
192 -re "Delete all breakpoints.*or n.*$" {
196 timeout { perror "info breakpoints (timeout)" ; return }
200 # Generic run command.
202 # The second pattern below matches up to the first newline *only*.
203 # Using ``.*$'' could swallow up output that we attempt to match
206 # N.B. This function does not wait for gdb to return to the prompt,
207 # that is the caller's responsibility.
209 proc gdb_run_cmd {args} {
210 global gdb_prompt use_gdb_stub
212 if [target_info exists gdb_init_command] {
213 send_gdb "[target_info gdb_init_command]\n"
215 -re "$gdb_prompt $" { }
217 perror "gdb_init_command for target failed"
224 if [target_info exists gdb,do_reload_on_run] {
225 if { [gdb_reload] != 0 } {
228 send_gdb "continue\n"
230 -re "Continu\[^\r\n\]*\[\r\n\]" {}
236 if [target_info exists gdb,start_symbol] {
237 set start [target_info gdb,start_symbol]
241 send_gdb "jump *$start\n"
243 while { $start_attempt } {
244 # Cap (re)start attempts at three to ensure that this loop
245 # always eventually fails. Don't worry about trying to be
246 # clever and not send a command when it has failed.
247 if [expr $start_attempt > 3] {
248 perror "Jump to start() failed (retry count exceeded)"
251 set start_attempt [expr $start_attempt + 1]
253 -re "Continuing at \[^\r\n\]*\[\r\n\]" {
256 -re "No symbol \"_start\" in current.*$gdb_prompt $" {
257 perror "Can't find start symbol to run in gdb_run"
260 -re "No symbol \"start\" in current.*$gdb_prompt $" {
261 send_gdb "jump *_start\n"
263 -re "No symbol.*context.*$gdb_prompt $" {
266 -re "Line.* Jump anyway.*y or n. $" {
269 -re "The program is not being run.*$gdb_prompt $" {
270 if { [gdb_reload] != 0 } {
273 send_gdb "jump *$start\n"
276 perror "Jump to start() failed (timeout)"
284 if [target_info exists gdb,do_reload_on_run] {
285 if { [gdb_reload] != 0 } {
289 send_gdb "run $args\n"
290 # This doesn't work quite right yet.
291 # Use -notransfer here so that test cases (like chng-sym.exp)
292 # may test for additional start-up messages.
294 -re "The program .* has been started already.*y or n. $" {
298 -notransfer -re "Starting program: \[^\r\n\]*" {}
299 -notransfer -re "$gdb_prompt $" {
300 # There is no more input expected.
305 # Generic start command. Return 0 if we could start the program, -1
308 # N.B. This function does not wait for gdb to return to the prompt,
309 # that is the caller's responsibility.
311 proc gdb_start_cmd {args} {
312 global gdb_prompt use_gdb_stub
314 if [target_info exists gdb_init_command] {
315 send_gdb "[target_info gdb_init_command]\n"
317 -re "$gdb_prompt $" { }
319 perror "gdb_init_command for target failed"
329 send_gdb "start $args\n"
330 # Use -notransfer here so that test cases (like chng-sym.exp)
331 # may test for additional start-up messages.
333 -re "The program .* has been started already.*y or n. $" {
337 -notransfer -re "Starting program: \[^\r\n\]*" {
344 # Set a breakpoint at FUNCTION. If there is an additional argument it is
345 # a list of options; the supported options are allow-pending, temporary,
346 # message, no-message, and passfail.
347 # The result is 1 for success, 0 for failure.
349 # Note: The handling of message vs no-message is messed up, but it's based
350 # on historical usage. By default this function does not print passes,
352 # no-message: turns off printing of fails (and passes, but they're already off)
353 # message: turns on printing of passes (and fails, but they're already on)
355 proc gdb_breakpoint { function args } {
359 set pending_response n
360 if {[lsearch -exact $args allow-pending] != -1} {
361 set pending_response y
364 set break_command "break"
365 set break_message "Breakpoint"
366 if {[lsearch -exact $args temporary] != -1} {
367 set break_command "tbreak"
368 set break_message "Temporary breakpoint"
373 set no_message_loc [lsearch -exact $args no-message]
374 set message_loc [lsearch -exact $args message]
375 # The last one to appear in args wins.
376 if { $no_message_loc > $message_loc } {
378 } elseif { $message_loc > $no_message_loc } {
382 set test_name "setting breakpoint at $function"
384 send_gdb "$break_command $function\n"
385 # The first two regexps are what we get with -g, the third is without -g.
387 -re "$break_message \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {}
388 -re "$break_message \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {}
389 -re "$break_message \[0-9\]* at .*$gdb_prompt $" {}
390 -re "$break_message \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" {
391 if {$pending_response == "n"} {
398 -re "Make breakpoint pending.*y or \\\[n\\\]. $" {
399 send_gdb "$pending_response\n"
402 -re "A problem internal to GDB has been detected" {
404 fail "$test_name (GDB internal error)"
406 gdb_internal_error_resync
409 -re "$gdb_prompt $" {
417 fail "$test_name (eof)"
423 fail "$test_name (timeout)"
434 # Set breakpoint at function and run gdb until it breaks there.
435 # Since this is the only breakpoint that will be set, if it stops
436 # at a breakpoint, we will assume it is the one we want. We can't
437 # just compare to "function" because it might be a fully qualified,
438 # single quoted C++ function specifier.
440 # If there are additional arguments, pass them to gdb_breakpoint.
441 # We recognize no-message/message ourselves.
442 # The default is no-message.
443 # no-message is messed up here, like gdb_breakpoint: to preserve
444 # historical usage fails are always printed by default.
445 # no-message: turns off printing of fails (and passes, but they're already off)
446 # message: turns on printing of passes (and fails, but they're already on)
448 proc runto { function args } {
454 # Default to "no-message".
455 set args "no-message $args"
459 set no_message_loc [lsearch -exact $args no-message]
460 set message_loc [lsearch -exact $args message]
461 # The last one to appear in args wins.
462 if { $no_message_loc > $message_loc } {
464 } elseif { $message_loc > $no_message_loc } {
468 set test_name "running to $function in runto"
470 # We need to use eval here to pass our varargs args to gdb_breakpoint
471 # which is also a varargs function.
472 # But we also have to be careful because $function may have multiple
473 # elements, and we don't want Tcl to move the remaining elements after
474 # the first to $args. That is why $function is wrapped in {}.
475 if ![eval gdb_breakpoint {$function} $args] {
481 # the "at foo.c:36" output we get with -g.
482 # the "in func" output we get without -g.
484 -re "Break.* at .*:$decimal.*$gdb_prompt $" {
490 -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" {
496 -re "The target does not support running in non-stop mode.\r\n$gdb_prompt $" {
498 unsupported "Non-stop mode not supported"
502 -re ".*A problem internal to GDB has been detected" {
504 fail "$test_name (GDB internal error)"
506 gdb_internal_error_resync
509 -re "$gdb_prompt $" {
517 fail "$test_name (eof)"
523 fail "$test_name (timeout)"
534 # Ask gdb to run until we hit a breakpoint at main.
536 # N.B. This function deletes all existing breakpoints.
537 # If you don't want that, use gdb_start_cmd.
539 proc runto_main { } {
540 return [runto main no-message]
543 ### Continue, and expect to hit a breakpoint.
544 ### Report a pass or fail, depending on whether it seems to have
545 ### worked. Use NAME as part of the test name; each call to
546 ### continue_to_breakpoint should use a NAME which is unique within
548 proc gdb_continue_to_breakpoint {name {location_pattern .*}} {
550 set full_name "continue to breakpoint: $name"
552 send_gdb "continue\n"
554 -re "(?:Breakpoint|Temporary breakpoint) .* (at|in) $location_pattern\r\n$gdb_prompt $" {
557 -re ".*$gdb_prompt $" {
561 fail "$full_name (timeout)"
567 # gdb_internal_error_resync:
569 # Answer the questions GDB asks after it reports an internal error
570 # until we get back to a GDB prompt. Decline to quit the debugging
571 # session, and decline to create a core file. Return non-zero if the
574 # This procedure just answers whatever questions come up until it sees
575 # a GDB prompt; it doesn't require you to have matched the input up to
576 # any specific point. However, it only answers questions it sees in
577 # the output itself, so if you've matched a question, you had better
578 # answer it yourself before calling this.
580 # You can use this function thus:
584 # -re ".*A problem internal to GDB has been detected" {
585 # gdb_internal_error_resync
590 proc gdb_internal_error_resync {} {
593 verbose -log "Resyncing due to internal error."
596 while {$count < 10} {
598 -re "Quit this debugging session\\? \\(y or n\\) $" {
602 -re "Create a core file of GDB\\? \\(y or n\\) $" {
606 -re "$gdb_prompt $" {
607 # We're resynchronized.
611 perror "Could not resync from internal error (timeout)"
616 perror "Could not resync from internal error (resync count exceeded)"
621 # gdb_test_multiple COMMAND MESSAGE EXPECT_ARGUMENTS
622 # Send a command to gdb; test the result.
624 # COMMAND is the command to execute, send to GDB with send_gdb. If
625 # this is the null string no command is sent.
626 # MESSAGE is a message to be printed with the built-in failure patterns
627 # if one of them matches. If MESSAGE is empty COMMAND will be used.
628 # EXPECT_ARGUMENTS will be fed to expect in addition to the standard
629 # patterns. Pattern elements will be evaluated in the caller's
630 # context; action elements will be executed in the caller's context.
631 # Unlike patterns for gdb_test, these patterns should generally include
632 # the final newline and prompt.
635 # 1 if the test failed, according to a built-in failure pattern
636 # 0 if only user-supplied patterns matched
637 # -1 if there was an internal error.
639 # You can use this function thus:
641 # gdb_test_multiple "print foo" "test foo" {
642 # -re "expected output 1" {
645 # -re "expected output 2" {
650 # The standard patterns, such as "Inferior exited..." and "A problem
651 # ...", all being implicitly appended to that list.
653 proc gdb_test_multiple { command message user_code } {
654 global verbose use_gdb_stub
657 global inferior_exited_re
658 upvar timeout timeout
659 upvar expect_out expect_out
661 if { $message == "" } {
665 if [string match "*\[\r\n\]" $command] {
666 error "Invalid trailing newline in \"$message\" test"
669 if [string match "*\[\r\n\]*" $message] {
670 error "Invalid newline in \"$message\" test"
674 && [regexp -nocase {^\s*(r|run|star|start|at|att|atta|attac|attach)\M} \
676 error "gdbserver does not support $command without extended-remote"
679 # TCL/EXPECT WART ALERT
680 # Expect does something very strange when it receives a single braced
681 # argument. It splits it along word separators and performs substitutions.
682 # This means that { "[ab]" } is evaluated as "[ab]", but { "\[ab\]" } is
683 # evaluated as "\[ab\]". But that's not how TCL normally works; inside a
684 # double-quoted list item, "\[ab\]" is just a long way of representing
685 # "[ab]", because the backslashes will be removed by lindex.
687 # Unfortunately, there appears to be no easy way to duplicate the splitting
688 # that expect will do from within TCL. And many places make use of the
689 # "\[0-9\]" construct, so we need to support that; and some places make use
690 # of the "[func]" construct, so we need to support that too. In order to
691 # get this right we have to substitute quoted list elements differently
692 # from braced list elements.
694 # We do this roughly the same way that Expect does it. We have to use two
695 # lists, because if we leave unquoted newlines in the argument to uplevel
696 # they'll be treated as command separators, and if we escape newlines
697 # we mangle newlines inside of command blocks. This assumes that the
698 # input doesn't contain a pattern which contains actual embedded newlines
701 regsub -all {\n} ${user_code} { } subst_code
702 set subst_code [uplevel list $subst_code]
704 set processed_code ""
706 set expecting_action 0
708 foreach item $user_code subst_item $subst_code {
709 if { $item == "-n" || $item == "-notransfer" || $item == "-nocase" } {
710 lappend processed_code $item
713 if { $item == "-indices" || $item == "-re" || $item == "-ex" } {
714 lappend processed_code $item
717 if { $item == "-timeout" } {
719 lappend processed_code $item
722 if { $expecting_arg } {
724 lappend processed_code $item
727 if { $expecting_action } {
728 lappend processed_code "uplevel [list $item]"
729 set expecting_action 0
730 # Cosmetic, no effect on the list.
731 append processed_code "\n"
734 set expecting_action 1
735 lappend processed_code $subst_item
736 if {$patterns != ""} {
739 append patterns "\"$subst_item\""
742 # Also purely cosmetic.
743 regsub -all {\r} $patterns {\\r} patterns
744 regsub -all {\n} $patterns {\\n} patterns
747 send_user "Sending \"$command\" to gdb\n"
748 send_user "Looking to match \"$patterns\"\n"
749 send_user "Message is \"$message\"\n"
753 set string "${command}\n"
754 if { $command != "" } {
755 set multi_line_re "\[\r\n\] *>"
756 while { "$string" != "" } {
757 set foo [string first "\n" "$string"]
758 set len [string length "$string"]
759 if { $foo < [expr $len - 1] } {
760 set str [string range "$string" 0 $foo]
761 if { [send_gdb "$str"] != "" } {
764 if { ! $suppress_flag } {
765 perror "Couldn't send $command to GDB."
770 # since we're checking if each line of the multi-line
771 # command are 'accepted' by GDB here,
772 # we need to set -notransfer expect option so that
773 # command output is not lost for pattern matching
776 -notransfer -re "$multi_line_re$" { verbose "partial: match" 3 }
777 timeout { verbose "partial: timeout" 3 }
779 set string [string range "$string" [expr $foo + 1] end]
780 set multi_line_re "$multi_line_re.*\[\r\n\] *>"
785 if { "$string" != "" } {
786 if { [send_gdb "$string"] != "" } {
789 if { ! $suppress_flag } {
790 perror "Couldn't send $command to GDB."
798 if [target_info exists gdb,timeout] {
799 set tmt [target_info gdb,timeout]
801 if [info exists timeout] {
805 if [info exists timeout] {
814 -re ".*A problem internal to GDB has been detected" {
815 fail "$message (GDB internal error)"
816 gdb_internal_error_resync
818 -re "\\*\\*\\* DOSEXIT code.*" {
819 if { $message != "" } {
822 gdb_suppress_entire_file "GDB died"
826 append code $processed_code
828 -re "Ending remote debugging.*$gdb_prompt $" {
829 if ![isnative] then {
830 warning "Can`t communicate to remote target."
836 -re "Undefined\[a-z\]* command:.*$gdb_prompt $" {
837 perror "Undefined command \"$command\"."
841 -re "Ambiguous command.*$gdb_prompt $" {
842 perror "\"$command\" is not a unique command name."
846 -re "$inferior_exited_re with code \[0-9\]+.*$gdb_prompt $" {
847 if ![string match "" $message] then {
848 set errmsg "$message (the program exited)"
850 set errmsg "$command (the program exited)"
855 -re "$inferior_exited_re normally.*$gdb_prompt $" {
856 if ![string match "" $message] then {
857 set errmsg "$message (the program exited)"
859 set errmsg "$command (the program exited)"
864 -re "The program is not being run.*$gdb_prompt $" {
865 if ![string match "" $message] then {
866 set errmsg "$message (the program is no longer running)"
868 set errmsg "$command (the program is no longer running)"
873 -re "\r\n$gdb_prompt $" {
874 if ![string match "" $message] then {
881 perror "Window too small."
885 -re "\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " {
887 gdb_expect -re "$gdb_prompt $"
888 fail "$message (got interactive prompt)"
891 -re "\\\[0\\\] cancel\r\n\\\[1\\\] all.*\r\n> $" {
893 gdb_expect -re "$gdb_prompt $"
894 fail "$message (got breakpoint menu)"
898 perror "Process no longer exists"
899 if { $message != "" } {
905 perror "internal buffer is full."
910 if ![string match "" $message] then {
911 fail "$message (timeout)"
918 set code [catch {gdb_expect $tmt $code} string]
920 global errorInfo errorCode
921 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
922 } elseif {$code > 1} {
923 return -code $code $string
928 # gdb_test COMMAND PATTERN MESSAGE QUESTION RESPONSE
929 # Send a command to gdb; test the result.
931 # COMMAND is the command to execute, send to GDB with send_gdb. If
932 # this is the null string no command is sent.
933 # PATTERN is the pattern to match for a PASS, and must NOT include
934 # the \r\n sequence immediately before the gdb prompt.
935 # MESSAGE is an optional message to be printed. If this is
936 # omitted, then the pass/fail messages use the command string as the
937 # message. (If this is the empty string, then sometimes we don't
938 # call pass or fail at all; I don't understand this at all.)
939 # QUESTION is a question GDB may ask in response to COMMAND, like
941 # RESPONSE is the response to send if QUESTION appears.
944 # 1 if the test failed,
945 # 0 if the test passes,
946 # -1 if there was an internal error.
948 proc gdb_test { args } {
952 upvar timeout timeout
954 if [llength $args]>2 then {
955 set message [lindex $args 2]
957 set message [lindex $args 0]
959 set command [lindex $args 0]
960 set pattern [lindex $args 1]
962 if [llength $args]==5 {
963 set question_string [lindex $args 3]
964 set response_string [lindex $args 4]
966 set question_string "^FOOBAR$"
969 return [gdb_test_multiple $command $message {
970 -re "\[\r\n\]*($pattern)\[\r\n\]+$gdb_prompt $" {
971 if ![string match "" $message] then {
975 -re "(${question_string})$" {
976 send_gdb "$response_string\n"
982 # gdb_test_no_output COMMAND MESSAGE
983 # Send a command to GDB and verify that this command generated no output.
985 # See gdb_test_multiple for a description of the COMMAND and MESSAGE
986 # parameters. If MESSAGE is ommitted, then COMMAND will be used as
987 # the message. (If MESSAGE is the empty string, then sometimes we do not
988 # call pass or fail at all; I don't understand this at all.)
990 proc gdb_test_no_output { args } {
992 set command [lindex $args 0]
993 if [llength $args]>1 then {
994 set message [lindex $args 1]
999 set command_regex [string_to_regexp $command]
1000 gdb_test_multiple $command $message {
1001 -re "^$command_regex\r\n$gdb_prompt $" {
1002 if ![string match "" $message] then {
1009 # Send a command and then wait for a sequence of outputs.
1010 # This is useful when the sequence is long and contains ".*", a single
1011 # regexp to match the entire output can get a timeout much easier.
1013 # COMMAND is the command to send.
1014 # TEST_NAME is passed to pass/fail. COMMAND is used if TEST_NAME is "".
1015 # EXPECTED_OUTPUT_LIST is a list of regexps of expected output, which are
1016 # processed in order, and all must be present in the output.
1018 # It is unnecessary to specify ".*" at the beginning or end of any regexp,
1019 # there is an implicit ".*" between each element of EXPECTED_OUTPUT_LIST.
1020 # There is also an implicit ".*" between the last regexp and the gdb prompt.
1022 # Like gdb_test and gdb_test_multiple, the output is expected to end with the
1023 # gdb prompt, which must not be specified in EXPECTED_OUTPUT_LIST.
1026 # 1 if the test failed,
1027 # 0 if the test passes,
1028 # -1 if there was an internal error.
1030 proc gdb_test_sequence { command test_name expected_output_list } {
1032 if { $test_name == "" } {
1033 set test_name $command
1035 lappend expected_output_list ""; # implicit ".*" before gdb prompt
1036 send_gdb "$command\n"
1037 return [gdb_expect_list $test_name "$gdb_prompt $" $expected_output_list]
1041 # Test that a command gives an error. For pass or fail, return
1042 # a 1 to indicate that more tests can proceed. However a timeout
1043 # is a serious error, generates a special fail message, and causes
1044 # a 0 to be returned to indicate that more tests are likely to fail
1047 proc test_print_reject { args } {
1051 if [llength $args]==2 then {
1052 set expectthis [lindex $args 1]
1054 set expectthis "should never match this bogus string"
1056 set sendthis [lindex $args 0]
1057 if $verbose>2 then {
1058 send_user "Sending \"$sendthis\" to gdb\n"
1059 send_user "Looking to match \"$expectthis\"\n"
1061 send_gdb "$sendthis\n"
1062 #FIXME: Should add timeout as parameter.
1064 -re "A .* in expression.*\\.*$gdb_prompt $" {
1065 pass "reject $sendthis"
1068 -re "Invalid syntax in expression.*$gdb_prompt $" {
1069 pass "reject $sendthis"
1072 -re "Junk after end of expression.*$gdb_prompt $" {
1073 pass "reject $sendthis"
1076 -re "Invalid number.*$gdb_prompt $" {
1077 pass "reject $sendthis"
1080 -re "Invalid character constant.*$gdb_prompt $" {
1081 pass "reject $sendthis"
1084 -re "No symbol table is loaded.*$gdb_prompt $" {
1085 pass "reject $sendthis"
1088 -re "No symbol .* in current context.*$gdb_prompt $" {
1089 pass "reject $sendthis"
1092 -re "Unmatched single quote.*$gdb_prompt $" {
1093 pass "reject $sendthis"
1096 -re "A character constant must contain at least one character.*$gdb_prompt $" {
1097 pass "reject $sendthis"
1100 -re "$expectthis.*$gdb_prompt $" {
1101 pass "reject $sendthis"
1104 -re ".*$gdb_prompt $" {
1105 fail "reject $sendthis"
1109 fail "reject $sendthis (eof or timeout)"
1115 # Given an input string, adds backslashes as needed to create a
1116 # regexp that will match the string.
1118 proc string_to_regexp {str} {
1120 regsub -all {[]*+.|()^$\[\\]} $str {\\&} result
1124 # Same as gdb_test, but the second parameter is not a regexp,
1125 # but a string that must match exactly.
1127 proc gdb_test_exact { args } {
1128 upvar timeout timeout
1130 set command [lindex $args 0]
1132 # This applies a special meaning to a null string pattern. Without
1133 # this, "$pattern\r\n$gdb_prompt $" will match anything, including error
1134 # messages from commands that should have no output except a new
1135 # prompt. With this, only results of a null string will match a null
1138 set pattern [lindex $args 1]
1139 if [string match $pattern ""] {
1140 set pattern [string_to_regexp [lindex $args 0]]
1142 set pattern [string_to_regexp [lindex $args 1]]
1145 # It is most natural to write the pattern argument with only
1146 # embedded \n's, especially if you are trying to avoid Tcl quoting
1147 # problems. But gdb_expect really wants to see \r\n in patterns. So
1148 # transform the pattern here. First transform \r\n back to \n, in
1149 # case some users of gdb_test_exact already do the right thing.
1150 regsub -all "\r\n" $pattern "\n" pattern
1151 regsub -all "\n" $pattern "\r\n" pattern
1152 if [llength $args]==3 then {
1153 set message [lindex $args 2]
1155 set message $command
1158 return [gdb_test $command $pattern $message]
1161 # Wrapper around gdb_test_multiple that looks for a list of expected
1162 # output elements, but which can appear in any order.
1163 # CMD is the gdb command.
1164 # NAME is the name of the test.
1165 # ELM_FIND_REGEXP specifies how to partition the output into elements to
1167 # ELM_EXTRACT_REGEXP specifies the part of ELM_FIND_REGEXP to compare.
1168 # RESULT_MATCH_LIST is a list of exact matches for each expected element.
1169 # All elements of RESULT_MATCH_LIST must appear for the test to pass.
1171 # A typical use of ELM_FIND_REGEXP/ELM_EXTRACT_REGEXP is to extract one line
1172 # of text per element and then strip trailing \r\n's.
1174 # gdb_test_list_exact "foo" "bar" \
1175 # "\[^\r\n\]+\[\r\n\]+" \
1178 # {expected result 1} \
1179 # {expected result 2} \
1182 proc gdb_test_list_exact { cmd name elm_find_regexp elm_extract_regexp result_match_list } {
1185 set matches [lsort $result_match_list]
1187 gdb_test_multiple $cmd $name {
1188 "$cmd\[\r\n\]" { exp_continue }
1189 -re $elm_find_regexp {
1190 set str $expect_out(0,string)
1191 verbose -log "seen: $str" 3
1192 regexp -- $elm_extract_regexp $str elm_seen
1193 verbose -log "extracted: $elm_seen" 3
1194 lappend seen $elm_seen
1197 -re "$gdb_prompt $" {
1199 foreach got [lsort $seen] have $matches {
1200 if {![string equal $got $have]} {
1205 if {[string length $failed] != 0} {
1206 fail "$name ($failed not found)"
1214 proc gdb_reinitialize_dir { subdir } {
1217 if [is_remote host] {
1222 -re "Reinitialize source path to empty.*y or n. " {
1225 -re "Source directories searched.*$gdb_prompt $" {
1226 send_gdb "dir $subdir\n"
1228 -re "Source directories searched.*$gdb_prompt $" {
1229 verbose "Dir set to $subdir"
1231 -re "$gdb_prompt $" {
1232 perror "Dir \"$subdir\" failed."
1236 -re "$gdb_prompt $" {
1237 perror "Dir \"$subdir\" failed."
1241 -re "$gdb_prompt $" {
1242 perror "Dir \"$subdir\" failed."
1248 # gdb_exit -- exit the GDB, killing the target program if necessary
1250 proc default_gdb_exit {} {
1252 global INTERNAL_GDBFLAGS GDBFLAGS
1255 global inotify_log_file
1257 gdb_stop_suppressing_tests
1259 if ![info exists gdb_spawn_id] {
1263 verbose "Quitting $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
1265 if {[info exists inotify_log_file] && [file exists $inotify_log_file]} {
1266 set fd [open $inotify_log_file]
1267 set data [read -nonewline $fd]
1270 if {[string compare $data ""] != 0} {
1271 warning "parallel-unsafe file creations noticed"
1274 set fd [open $inotify_log_file w]
1279 if { [is_remote host] && [board_info host exists fileid] } {
1286 -re "DOSEXIT code" { }
1291 if ![is_remote host] {
1297 # Load a file into the debugger.
1298 # The return value is 0 for success, -1 for failure.
1300 # This procedure also set the global variable GDB_FILE_CMD_DEBUG_INFO
1301 # to one of these values:
1303 # debug file was loaded successfully and has debug information
1304 # nodebug file was loaded successfully and has no debug information
1305 # lzma file was loaded, .gnu_debugdata found, but no LZMA support
1307 # fail file was not loaded
1309 # I tried returning this information as part of the return value,
1310 # but ran into a mess because of the many re-implementations of
1311 # gdb_load in config/*.exp.
1313 # TODO: gdb.base/sepdebug.exp and gdb.stabs/weird.exp might be able to use
1314 # this if they can get more information set.
1316 proc gdb_file_cmd { arg } {
1320 global last_loaded_file
1322 # Save this for the benefit of gdbserver-support.exp.
1323 set last_loaded_file $arg
1325 # Set whether debug info was found.
1326 # Default to "fail".
1327 global gdb_file_cmd_debug_info
1328 set gdb_file_cmd_debug_info "fail"
1330 if [is_remote host] {
1331 set arg [remote_download host $arg]
1333 perror "download failed"
1338 # The file command used to kill the remote target. For the benefit
1339 # of the testsuite, preserve this behavior.
1342 -re "Kill the program being debugged. .y or n. $" {
1344 verbose "\t\tKilling previous program being debugged"
1347 -re "$gdb_prompt $" {
1352 send_gdb "file $arg\n"
1354 -re "Reading symbols from.*LZMA support was disabled.*done.*$gdb_prompt $" {
1355 verbose "\t\tLoaded $arg into $GDB; .gnu_debugdata found but no LZMA available"
1356 set gdb_file_cmd_debug_info "lzma"
1359 -re "Reading symbols from.*no debugging symbols found.*done.*$gdb_prompt $" {
1360 verbose "\t\tLoaded $arg into $GDB with no debugging symbols"
1361 set gdb_file_cmd_debug_info "nodebug"
1364 -re "Reading symbols from.*done.*$gdb_prompt $" {
1365 verbose "\t\tLoaded $arg into $GDB"
1366 set gdb_file_cmd_debug_info "debug"
1369 -re "Load new symbol table from \".*\".*y or n. $" {
1372 -re "Reading symbols from.*done.*$gdb_prompt $" {
1373 verbose "\t\tLoaded $arg with new symbol table into $GDB"
1374 set gdb_file_cmd_debug_info "debug"
1378 perror "Couldn't load $arg, other program already loaded (timeout)."
1382 perror "Couldn't load $arg, other program already loaded (eof)."
1387 -re "No such file or directory.*$gdb_prompt $" {
1388 perror "($arg) No such file or directory"
1391 -re "A problem internal to GDB has been detected" {
1392 fail "($arg) (GDB internal error)"
1393 gdb_internal_error_resync
1396 -re "$gdb_prompt $" {
1397 perror "Couldn't load $arg into $GDB."
1401 perror "Couldn't load $arg into $GDB (timeout)."
1405 # This is an attempt to detect a core dump, but seems not to
1406 # work. Perhaps we need to match .* followed by eof, in which
1407 # gdb_expect does not seem to have a way to do that.
1408 perror "Couldn't load $arg into $GDB (eof)."
1415 # start gdb -- start gdb running, default procedure
1417 # When running over NFS, particularly if running many simultaneous
1418 # tests on different hosts all using the same server, things can
1419 # get really slow. Give gdb at least 3 minutes to start up.
1421 proc default_gdb_start { } {
1422 global verbose use_gdb_stub
1424 global INTERNAL_GDBFLAGS GDBFLAGS
1429 gdb_stop_suppressing_tests
1431 # Set the default value, it may be overriden later by specific testfile.
1433 # Use `set_board_info use_gdb_stub' for the board file to flag the inferior
1434 # is already started after connecting and run/attach are not supported.
1435 # This is used for the "remote" protocol. After GDB starts you should
1436 # check global $use_gdb_stub instead of the board as the testfile may force
1437 # a specific different target protocol itself.
1438 set use_gdb_stub [target_info exists use_gdb_stub]
1440 verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
1442 if [info exists gdb_spawn_id] {
1446 if ![is_remote host] {
1447 if { [which $GDB] == 0 } then {
1448 perror "$GDB does not exist."
1452 set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]
1453 if { $res < 0 || $res == "" } {
1454 perror "Spawning $GDB failed."
1458 -re "\[\r\n\]$gdb_prompt $" {
1459 verbose "GDB initialized."
1461 -re "$gdb_prompt $" {
1462 perror "GDB never initialized."
1466 perror "(timeout) GDB never initialized after 10 seconds."
1472 # force the height to "unlimited", so no pagers get used
1474 send_gdb "set height 0\n"
1476 -re "$gdb_prompt $" {
1477 verbose "Setting height to 0." 2
1480 warning "Couldn't set the height to 0"
1483 # force the width to "unlimited", so no wraparound occurs
1484 send_gdb "set width 0\n"
1486 -re "$gdb_prompt $" {
1487 verbose "Setting width to 0." 2
1490 warning "Couldn't set the width to 0."
1496 # Examine the output of compilation to determine whether compilation
1497 # failed or not. If it failed determine whether it is due to missing
1498 # compiler or due to compiler error. Report pass, fail or unsupported
1501 proc gdb_compile_test {src output} {
1502 if { $output == "" } {
1503 pass "compilation [file tail $src]"
1504 } elseif { [regexp {^[a-zA-Z_0-9]+: Can't find [^ ]+\.$} $output] } {
1505 unsupported "compilation [file tail $src]"
1506 } elseif { [regexp {.*: command not found[\r|\n]*$} $output] } {
1507 unsupported "compilation [file tail $src]"
1508 } elseif { [regexp {.*: [^\r\n]*compiler not installed[^\r\n]*[\r|\n]*$} $output] } {
1509 unsupported "compilation [file tail $src]"
1511 verbose -log "compilation failed: $output" 2
1512 fail "compilation [file tail $src]"
1516 # Return a 1 for configurations for which we don't even want to try to
1519 proc skip_cplus_tests {} {
1520 if { [istarget "h8300-*-*"] } {
1524 # The C++ IO streams are too large for HC11/HC12 and are thus not
1525 # available. The gdb C++ tests use them and don't compile.
1526 if { [istarget "m6811-*-*"] } {
1529 if { [istarget "m6812-*-*"] } {
1535 # Return a 1 for configurations for which don't have both C++ and the STL.
1537 proc skip_stl_tests {} {
1538 # Symbian supports the C++ language, but the STL is missing
1539 # (both headers and libraries).
1540 if { [istarget "arm*-*-symbianelf*"] } {
1544 return [skip_cplus_tests]
1547 # Return a 1 if I don't even want to try to test FORTRAN.
1549 proc skip_fortran_tests {} {
1553 # Return a 1 if I don't even want to try to test ada.
1555 proc skip_ada_tests {} {
1559 # Return a 1 if I don't even want to try to test GO.
1561 proc skip_go_tests {} {
1565 # Return a 1 if I don't even want to try to test java.
1567 proc skip_java_tests {} {
1571 # Return a 1 for configurations that do not support Python scripting.
1573 proc skip_python_tests {} {
1575 global gdb_py_is_py3k
1576 global gdb_py_is_py24
1578 gdb_test_multiple "python print ('test')" "verify python support" {
1579 -re "not supported.*$gdb_prompt $" {
1580 unsupported "Python support is disabled."
1583 -re "$gdb_prompt $" {}
1586 set gdb_py_is_py24 0
1587 gdb_test_multiple "python print (sys.version_info\[0\])" "check if python 3" {
1588 -re "3.*$gdb_prompt $" {
1589 set gdb_py_is_py3k 1
1591 -re ".*$gdb_prompt $" {
1592 set gdb_py_is_py3k 0
1595 if { $gdb_py_is_py3k == 0 } {
1596 gdb_test_multiple "python print (sys.version_info\[1\])" "check if python 2.4" {
1597 -re "\[45\].*$gdb_prompt $" {
1598 set gdb_py_is_py24 1
1600 -re ".*$gdb_prompt $" {
1601 set gdb_py_is_py24 0
1609 # Return a 1 if we should skip shared library tests.
1611 proc skip_shlib_tests {} {
1612 # Run the shared library tests on native systems.
1617 # An abbreviated list of remote targets where we should be able to
1618 # run shared library tests.
1619 if {([istarget *-*-linux*]
1620 || [istarget *-*-*bsd*]
1621 || [istarget *-*-solaris2*]
1622 || [istarget arm*-*-symbianelf*]
1623 || [istarget *-*-mingw*]
1624 || [istarget *-*-cygwin*]
1625 || [istarget *-*-pe*])} {
1632 # Test files shall make sure all the test result lines in gdb.sum are
1633 # unique in a test run, so that comparing the gdb.sum files of two
1634 # test runs gives correct results. Test files that exercise
1635 # variations of the same tests more than once, shall prefix the
1636 # different test invocations with different identifying strings in
1637 # order to make them unique.
1639 # About test prefixes:
1641 # $pf_prefix is the string that dejagnu prints after the result (FAIL,
1642 # PASS, etc.), and before the test message/name in gdb.sum. E.g., the
1643 # underlined substring in
1645 # PASS: gdb.base/mytest.exp: some test
1646 # ^^^^^^^^^^^^^^^^^^^^
1650 # The easiest way to adjust the test prefix is to append a test
1651 # variation prefix to the $pf_prefix, using the with_test_prefix
1654 # proc do_tests {} {
1655 # gdb_test ... ... "test foo"
1656 # gdb_test ... ... "test bar"
1658 # with_test_prefix "subvariation a" {
1659 # gdb_test ... ... "test x"
1662 # with_test_prefix "subvariation b" {
1663 # gdb_test ... ... "test x"
1667 # with_test_prefix "variation1" {
1668 # ...do setup for variation 1...
1672 # with_test_prefix "variation2" {
1673 # ...do setup for variation 2...
1679 # PASS: gdb.base/mytest.exp: variation1: test foo
1680 # PASS: gdb.base/mytest.exp: variation1: test bar
1681 # PASS: gdb.base/mytest.exp: variation1: subvariation a: test x
1682 # PASS: gdb.base/mytest.exp: variation1: subvariation b: test x
1683 # PASS: gdb.base/mytest.exp: variation2: test foo
1684 # PASS: gdb.base/mytest.exp: variation2: test bar
1685 # PASS: gdb.base/mytest.exp: variation2: subvariation a: test x
1686 # PASS: gdb.base/mytest.exp: variation2: subvariation b: test x
1688 # If for some reason more flexibility is necessary, one can also
1689 # manipulate the pf_prefix global directly, treating it as a string.
1693 # set saved_pf_prefix
1694 # append pf_prefix "${foo}: bar"
1695 # ... actual tests ...
1696 # set pf_prefix $saved_pf_prefix
1699 # Run BODY in the context of the caller, with the current test prefix
1700 # (pf_prefix) appended with one space, then PREFIX, and then a colon.
1701 # Returns the result of BODY.
1703 proc with_test_prefix { prefix body } {
1706 set saved $pf_prefix
1707 append pf_prefix " " $prefix ":"
1708 set code [catch {uplevel 1 $body} result]
1709 set pf_prefix $saved
1712 global errorInfo errorCode
1713 return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
1715 return -code $code $result
1719 # Return 1 if _Complex types are supported, otherwise, return 0.
1721 gdb_caching_proc support_complex_tests {
1722 # Set up, compile, and execute a test program containing _Complex types.
1723 # Include the current process ID in the file names to prevent conflicts
1724 # with invocations for multiple testsuites.
1725 set src [standard_temp_file complex[pid].c]
1726 set exe [standard_temp_file complex[pid].x]
1728 set f [open $src "w"]
1729 puts $f "int main() {"
1730 puts $f "_Complex float cf;"
1731 puts $f "_Complex double cd;"
1732 puts $f "_Complex long double cld;"
1733 puts $f " return 0; }"
1736 verbose "compiling testfile $src" 2
1737 set compile_flags {debug nowarnings quiet}
1738 set lines [gdb_compile $src $exe executable $compile_flags]
1742 if ![string match "" $lines] then {
1743 verbose "testfile compilation failed, returning 0" 2
1752 # Return 1 if target hardware or OS supports single stepping to signal
1753 # handler, otherwise, return 0.
1755 proc can_single_step_to_signal_handler {} {
1757 # Targets don't have hardware single step. On these targets, when
1758 # a signal is delivered during software single step, gdb is unable
1759 # to determine the next instruction addresses, because start of signal
1760 # handler is one of them.
1761 if { [istarget "arm*-*-*"] || [istarget "mips*-*-*"]
1762 || [istarget "tic6x-*-*"] || [istarget "sparc*-*-linux*"] } {
1769 # Return 1 if target supports process record, otherwise return 0.
1771 proc supports_process_record {} {
1773 if [target_info exists gdb,use_precord] {
1774 return [target_info gdb,use_precord]
1777 if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"] } {
1784 # Return 1 if target supports reverse debugging, otherwise return 0.
1786 proc supports_reverse {} {
1788 if [target_info exists gdb,can_reverse] {
1789 return [target_info gdb,can_reverse]
1792 if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"] } {
1799 # Return 1 if target is ELF.
1800 gdb_caching_proc is_elf_target {
1801 set me "is_elf_target"
1803 set src [standard_temp_file is_elf_target[pid].c]
1804 set obj [standard_temp_file is_elf_target[pid].o]
1806 set fp_src [open $src "w"]
1807 puts $fp_src "int foo () {return 0;}"
1810 verbose "$me: compiling testfile $src" 2
1811 set lines [gdb_compile $src $obj object {quiet}]
1815 if ![string match "" $lines] then {
1816 verbose "$me: testfile compilation failed, returning 0" 2
1820 set fp_obj [open $obj "r"]
1821 fconfigure $fp_obj -translation binary
1822 set data [read $fp_obj]
1827 set ELFMAG "\u007FELF"
1829 if {[string compare -length 4 $data $ELFMAG] != 0} {
1830 verbose "$me: returning 0" 2
1834 verbose "$me: returning 1" 2
1838 # Return 1 if target is ILP32.
1839 # This cannot be decided simply from looking at the target string,
1840 # as it might depend on externally passed compiler options like -m64.
1841 gdb_caching_proc is_ilp32_target {
1842 set me "is_ilp32_target"
1844 set src [standard_temp_file ilp32[pid].c]
1845 set obj [standard_temp_file ilp32[pid].o]
1847 set f [open $src "w"]
1848 puts $f "int dummy\[sizeof (int) == 4"
1849 puts $f " && sizeof (void *) == 4"
1850 puts $f " && sizeof (long) == 4 ? 1 : -1\];"
1853 verbose "$me: compiling testfile $src" 2
1854 set lines [gdb_compile $src $obj object {quiet}]
1858 if ![string match "" $lines] then {
1859 verbose "$me: testfile compilation failed, returning 0" 2
1863 verbose "$me: returning 1" 2
1867 # Return 1 if target is LP64.
1868 # This cannot be decided simply from looking at the target string,
1869 # as it might depend on externally passed compiler options like -m64.
1870 gdb_caching_proc is_lp64_target {
1871 set me "is_lp64_target"
1873 set src [standard_temp_file lp64[pid].c]
1874 set obj [standard_temp_file lp64[pid].o]
1876 set f [open $src "w"]
1877 puts $f "int dummy\[sizeof (int) == 4"
1878 puts $f " && sizeof (void *) == 8"
1879 puts $f " && sizeof (long) == 8 ? 1 : -1\];"
1882 verbose "$me: compiling testfile $src" 2
1883 set lines [gdb_compile $src $obj object {quiet}]
1887 if ![string match "" $lines] then {
1888 verbose "$me: testfile compilation failed, returning 0" 2
1892 verbose "$me: returning 1" 2
1896 # Return 1 if target has 64 bit addresses.
1897 # This cannot be decided simply from looking at the target string,
1898 # as it might depend on externally passed compiler options like -m64.
1899 gdb_caching_proc is_64_target {
1900 set me "is_64_target"
1902 set src [standard_temp_file is64[pid].c]
1903 set obj [standard_temp_file is64[pid].o]
1905 set f [open $src "w"]
1906 puts $f "int function(void) { return 3; }"
1907 puts $f "int dummy\[sizeof (&function) == 8 ? 1 : -1\];"
1910 verbose "$me: compiling testfile $src" 2
1911 set lines [gdb_compile $src $obj object {quiet}]
1915 if ![string match "" $lines] then {
1916 verbose "$me: testfile compilation failed, returning 0" 2
1920 verbose "$me: returning 1" 2
1924 # Return 1 if target has x86_64 registers - either amd64 or x32.
1925 # x32 target identifies as x86_64-*-linux*, therefore it cannot be determined
1926 # just from the target string.
1927 gdb_caching_proc is_amd64_regs_target {
1928 if {![istarget "x86_64-*-*"] && ![istarget "i?86-*"]} {
1932 set me "is_amd64_regs_target"
1934 set src [standard_temp_file reg64[pid].s]
1935 set obj [standard_temp_file reg64[pid].o]
1937 set f [open $src "w"]
1939 {rax rbx rcx rdx rsi rdi rbp rsp r8 r9 r10 r11 r12 r13 r14 r15} {
1940 puts $f "\tincq %$reg"
1944 verbose "$me: compiling testfile $src" 2
1945 set lines [gdb_compile $src $obj object {quiet}]
1949 if ![string match "" $lines] then {
1950 verbose "$me: testfile compilation failed, returning 0" 2
1954 verbose "$me: returning 1" 2
1958 # Return 1 if this target is an x86 or x86-64 with -m32.
1959 proc is_x86_like_target {} {
1960 if {![istarget "x86_64-*-*"] && ![istarget i?86-*]} {
1963 return [expr [is_ilp32_target] && ![is_amd64_regs_target]]
1966 # Return 1 if displaced stepping is supported on target, otherwise, return 0.
1967 proc support_displaced_stepping {} {
1969 if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"]
1970 || [istarget "arm*-*-linux*"] || [istarget "powerpc-*-linux*"]
1971 || [istarget "powerpc64-*-linux*"] || [istarget "s390*-*-*"] } {
1978 # Run a test on the target to see if it supports vmx hardware. Return 0 if so,
1979 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
1981 gdb_caching_proc skip_altivec_tests {
1982 global srcdir subdir gdb_prompt inferior_exited_re
1984 set me "skip_altivec_tests"
1986 # Some simulators are known to not support VMX instructions.
1987 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
1988 verbose "$me: target known to not support VMX, returning 1" 2
1992 # Make sure we have a compiler that understands altivec.
1993 set compile_flags {debug nowarnings}
1994 if [get_compiler_info] {
1995 warning "Could not get compiler info"
1998 if [test_compiler_info gcc*] {
1999 set compile_flags "$compile_flags additional_flags=-maltivec"
2000 } elseif [test_compiler_info xlc*] {
2001 set compile_flags "$compile_flags additional_flags=-qaltivec"
2003 verbose "Could not compile with altivec support, returning 1" 2
2007 # Set up, compile, and execute a test program containing VMX instructions.
2008 # Include the current process ID in the file names to prevent conflicts
2009 # with invocations for multiple testsuites.
2010 set src [standard_temp_file vmx[pid].c]
2011 set exe [standard_temp_file vmx[pid].x]
2013 set f [open $src "w"]
2014 puts $f "int main() {"
2015 puts $f "#ifdef __MACH__"
2016 puts $f " asm volatile (\"vor v0,v0,v0\");"
2018 puts $f " asm volatile (\"vor 0,0,0\");"
2020 puts $f " return 0; }"
2023 verbose "$me: compiling testfile $src" 2
2024 set lines [gdb_compile $src $exe executable $compile_flags]
2027 if ![string match "" $lines] then {
2028 verbose "$me: testfile compilation failed, returning 1" 2
2032 # No error message, compilation succeeded so now run it via gdb.
2036 gdb_reinitialize_dir $srcdir/$subdir
2040 -re ".*Illegal instruction.*${gdb_prompt} $" {
2041 verbose -log "\n$me altivec hardware not detected"
2042 set skip_vmx_tests 1
2044 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
2045 verbose -log "\n$me: altivec hardware detected"
2046 set skip_vmx_tests 0
2049 warning "\n$me: default case taken"
2050 set skip_vmx_tests 1
2054 remote_file build delete $exe
2056 verbose "$me: returning $skip_vmx_tests" 2
2057 return $skip_vmx_tests
2060 # Run a test on the target to see if it supports vmx hardware. Return 0 if so,
2061 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2063 gdb_caching_proc skip_vsx_tests {
2064 global srcdir subdir gdb_prompt inferior_exited_re
2066 set me "skip_vsx_tests"
2068 # Some simulators are known to not support Altivec instructions, so
2069 # they won't support VSX instructions as well.
2070 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
2071 verbose "$me: target known to not support VSX, returning 1" 2
2075 # Make sure we have a compiler that understands altivec.
2076 set compile_flags {debug nowarnings quiet}
2077 if [get_compiler_info] {
2078 warning "Could not get compiler info"
2081 if [test_compiler_info gcc*] {
2082 set compile_flags "$compile_flags additional_flags=-mvsx"
2083 } elseif [test_compiler_info xlc*] {
2084 set compile_flags "$compile_flags additional_flags=-qasm=gcc"
2086 verbose "Could not compile with vsx support, returning 1" 2
2090 set src [standard_temp_file vsx[pid].c]
2091 set exe [standard_temp_file vsx[pid].x]
2093 set f [open $src "w"]
2094 puts $f "int main() {"
2095 puts $f " double a\[2\] = { 1.0, 2.0 };"
2096 puts $f "#ifdef __MACH__"
2097 puts $f " asm volatile (\"lxvd2x v0,v0,%\[addr\]\" : : \[addr\] \"r\" (a));"
2099 puts $f " asm volatile (\"lxvd2x 0,0,%\[addr\]\" : : \[addr\] \"r\" (a));"
2101 puts $f " return 0; }"
2104 verbose "$me: compiling testfile $src" 2
2105 set lines [gdb_compile $src $exe executable $compile_flags]
2108 if ![string match "" $lines] then {
2109 verbose "$me: testfile compilation failed, returning 1" 2
2113 # No error message, compilation succeeded so now run it via gdb.
2117 gdb_reinitialize_dir $srcdir/$subdir
2121 -re ".*Illegal instruction.*${gdb_prompt} $" {
2122 verbose -log "\n$me VSX hardware not detected"
2123 set skip_vsx_tests 1
2125 -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
2126 verbose -log "\n$me: VSX hardware detected"
2127 set skip_vsx_tests 0
2130 warning "\n$me: default case taken"
2131 set skip_vsx_tests 1
2135 remote_file build delete $exe
2137 verbose "$me: returning $skip_vsx_tests" 2
2138 return $skip_vsx_tests
2141 # Run a test on the target to see if it supports btrace hardware. Return 0 if so,
2142 # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
2144 gdb_caching_proc skip_btrace_tests {
2145 global srcdir subdir gdb_prompt inferior_exited_re
2147 set me "skip_btrace_tests"
2148 if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
2149 verbose "$me: target does not support btrace, returning 1" 2
2153 # Set up, compile, and execute a test program.
2154 # Include the current process ID in the file names to prevent conflicts
2155 # with invocations for multiple testsuites.
2156 set src [standard_temp_file btrace[pid].c]
2157 set exe [standard_temp_file btrace[pid].x]
2159 set f [open $src "w"]
2160 puts $f "int main(void) { return 0; }"
2163 verbose "$me: compiling testfile $src" 2
2164 set compile_flags {debug nowarnings quiet}
2165 set lines [gdb_compile $src $exe executable $compile_flags]
2167 if ![string match "" $lines] then {
2168 verbose "$me: testfile compilation failed, returning 1" 2
2173 # No error message, compilation succeeded so now run it via gdb.
2177 gdb_reinitialize_dir $srcdir/$subdir
2184 # In case of an unexpected output, we return 2 as a fail value.
2185 set skip_btrace_tests 2
2186 gdb_test_multiple "record btrace" "check btrace support" {
2187 -re "You can't do that when your target is.*\r\n$gdb_prompt $" {
2188 set skip_btrace_tests 1
2190 -re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
2191 set skip_btrace_tests 1
2193 -re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
2194 set skip_btrace_tests 1
2196 -re "^record btrace\r\n$gdb_prompt $" {
2197 set skip_btrace_tests 0
2201 remote_file build delete $exe
2203 verbose "$me: returning $skip_btrace_tests" 2
2204 return $skip_btrace_tests
2207 # Skip all the tests in the file if you are not on an hppa running
2210 proc skip_hp_tests {} {
2211 eval set skip_hp [ expr ![isnative] || ![istarget "hppa*-*-hpux*"] ]
2212 verbose "Skip hp tests is $skip_hp"
2216 # Return whether we should skip tests for showing inlined functions in
2217 # backtraces. Requires get_compiler_info and get_debug_format.
2219 proc skip_inline_frame_tests {} {
2220 # GDB only recognizes inlining information in DWARF 2 (DWARF 3).
2221 if { ! [test_debug_format "DWARF 2"] } {
2225 # GCC before 4.1 does not emit DW_AT_call_file / DW_AT_call_line.
2226 if { ([test_compiler_info "gcc-2-*"]
2227 || [test_compiler_info "gcc-3-*"]
2228 || [test_compiler_info "gcc-4-0-*"]) } {
2235 # Return whether we should skip tests for showing variables from
2236 # inlined functions. Requires get_compiler_info and get_debug_format.
2238 proc skip_inline_var_tests {} {
2239 # GDB only recognizes inlining information in DWARF 2 (DWARF 3).
2240 if { ! [test_debug_format "DWARF 2"] } {
2247 # Return a 1 if we should skip tests that require hardware breakpoints
2249 proc skip_hw_breakpoint_tests {} {
2250 # Skip tests if requested by the board (note that no_hardware_watchpoints
2251 # disables both watchpoints and breakpoints)
2252 if { [target_info exists gdb,no_hardware_watchpoints]} {
2256 # These targets support hardware breakpoints natively
2257 if { [istarget "i?86-*-*"]
2258 || [istarget "x86_64-*-*"]
2259 || [istarget "ia64-*-*"]
2260 || [istarget "arm*-*-*"]} {
2267 # Return a 1 if we should skip tests that require hardware watchpoints
2269 proc skip_hw_watchpoint_tests {} {
2270 # Skip tests if requested by the board
2271 if { [target_info exists gdb,no_hardware_watchpoints]} {
2275 # These targets support hardware watchpoints natively
2276 if { [istarget "i?86-*-*"]
2277 || [istarget "x86_64-*-*"]
2278 || [istarget "ia64-*-*"]
2279 || [istarget "arm*-*-*"]
2280 || [istarget "powerpc*-*-linux*"]
2281 || [istarget "s390*-*-*"] } {
2288 # Return a 1 if we should skip tests that require *multiple* hardware
2289 # watchpoints to be active at the same time
2291 proc skip_hw_watchpoint_multi_tests {} {
2292 if { [skip_hw_watchpoint_tests] } {
2296 # These targets support just a single hardware watchpoint
2297 if { [istarget "arm*-*-*"]
2298 || [istarget "powerpc*-*-linux*"] } {
2305 # Return a 1 if we should skip tests that require read/access watchpoints
2307 proc skip_hw_watchpoint_access_tests {} {
2308 if { [skip_hw_watchpoint_tests] } {
2312 # These targets support just write watchpoints
2313 if { [istarget "s390*-*-*"] } {
2320 # Return 1 if we should skip tests that require the runtime unwinder
2321 # hook. This must be invoked while gdb is running, after shared
2322 # libraries have been loaded. This is needed because otherwise a
2323 # shared libgcc won't be visible.
2325 proc skip_unwinder_tests {} {
2329 gdb_test_multiple "print _Unwind_DebugHook" "check for unwinder hook" {
2330 -re "= .*no debug info.*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
2332 -re "= .*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
2335 -re "No symbol .* in current context.\r\n$gdb_prompt $" {
2339 gdb_test_multiple "info probe" "check for stap probe in unwinder" {
2340 -re ".*libgcc.*unwind.*\r\n$gdb_prompt $" {
2343 -re "\r\n$gdb_prompt $" {
2350 # Return 0 if we should skip tests that require the libstdc++ stap
2351 # probes. This must be invoked while gdb is running, after shared
2352 # libraries have been loaded.
2354 proc skip_libstdcxx_probe_tests {} {
2358 gdb_test_multiple "info probe" "check for stap probe in libstdc++" {
2359 -re ".*libstdcxx.*catch.*\r\n$gdb_prompt $" {
2362 -re "\r\n$gdb_prompt $" {
2368 set compiler_info "unknown"
2370 set hp_cc_compiler 0
2371 set hp_aCC_compiler 0
2373 # Figure out what compiler I am using.
2375 # ARG can be empty or "C++". If empty, "C" is assumed.
2377 # There are several ways to do this, with various problems.
2379 # [ gdb_compile -E $ifile -o $binfile.ci ]
2380 # source $binfile.ci
2382 # Single Unix Spec v3 says that "-E -o ..." together are not
2383 # specified. And in fact, the native compiler on hp-ux 11 (among
2384 # others) does not work with "-E -o ...". Most targets used to do
2385 # this, and it mostly worked, because it works with gcc.
2387 # [ catch "exec $compiler -E $ifile > $binfile.ci" exec_output ]
2388 # source $binfile.ci
2390 # This avoids the problem with -E and -o together. This almost works
2391 # if the build machine is the same as the host machine, which is
2392 # usually true of the targets which are not gcc. But this code does
2393 # not figure which compiler to call, and it always ends up using the C
2394 # compiler. Not good for setting hp_aCC_compiler. Targets
2395 # hppa*-*-hpux* and mips*-*-irix* used to do this.
2397 # [ gdb_compile -E $ifile > $binfile.ci ]
2398 # source $binfile.ci
2400 # dejagnu target_compile says that it supports output redirection,
2401 # but the code is completely different from the normal path and I
2402 # don't want to sweep the mines from that path. So I didn't even try
2405 # set cppout [ gdb_compile $ifile "" preprocess $args quiet ]
2408 # I actually do this for all targets now. gdb_compile runs the right
2409 # compiler, and TCL captures the output, and I eval the output.
2411 # Unfortunately, expect logs the output of the command as it goes by,
2412 # and dejagnu helpfully prints a second copy of it right afterwards.
2413 # So I turn off expect logging for a moment.
2415 # [ gdb_compile $ifile $ciexe_file executable $args ]
2416 # [ remote_exec $ciexe_file ]
2417 # [ source $ci_file.out ]
2419 # I could give up on -E and just do this.
2420 # I didn't get desperate enough to try this.
2422 # -- chastain 2004-01-06
2424 proc get_compiler_info {{arg ""}} {
2425 # For compiler.c and compiler.cc
2428 # I am going to play with the log to keep noise out.
2432 # These come from compiler.c or compiler.cc
2433 global compiler_info
2435 # Legacy global data symbols.
2437 global hp_cc_compiler
2438 global hp_aCC_compiler
2440 # Choose which file to preprocess.
2441 set ifile "${srcdir}/lib/compiler.c"
2442 if { $arg == "c++" } {
2443 set ifile "${srcdir}/lib/compiler.cc"
2446 # Run $ifile through the right preprocessor.
2447 # Toggle gdb.log to keep the compiler output out of the log.
2448 set saved_log [log_file -info]
2450 if [is_remote host] {
2451 # We have to use -E and -o together, despite the comments
2452 # above, because of how DejaGnu handles remote host testing.
2453 set ppout "$outdir/compiler.i"
2454 gdb_compile "${ifile}" "$ppout" preprocess [list "$arg" quiet]
2455 set file [open $ppout r]
2456 set cppout [read $file]
2459 set cppout [ gdb_compile "${ifile}" "" preprocess [list "$arg" quiet] ]
2461 eval log_file $saved_log
2465 foreach cppline [ split "$cppout" "\n" ] {
2466 if { [ regexp "^#" "$cppline" ] } {
2468 } elseif { [ regexp "^\[\n\r\t \]*$" "$cppline" ] } {
2470 } elseif { [ regexp "^\[\n\r\t \]*set\[\n\r\t \]" "$cppline" ] } {
2472 verbose "get_compiler_info: $cppline" 2
2476 verbose -log "get_compiler_info: $cppline"
2481 # Reset to unknown compiler if any diagnostics happened.
2483 set compiler_info "unknown"
2486 # Set the legacy symbols.
2488 set hp_cc_compiler 0
2489 set hp_aCC_compiler 0
2490 if { [regexp "^gcc-1-" "$compiler_info" ] } { set gcc_compiled 1 }
2491 if { [regexp "^gcc-2-" "$compiler_info" ] } { set gcc_compiled 2 }
2492 if { [regexp "^gcc-3-" "$compiler_info" ] } { set gcc_compiled 3 }
2493 if { [regexp "^gcc-4-" "$compiler_info" ] } { set gcc_compiled 4 }
2494 if { [regexp "^gcc-5-" "$compiler_info" ] } { set gcc_compiled 5 }
2495 if { [regexp "^hpcc-" "$compiler_info" ] } { set hp_cc_compiler 1 }
2496 if { [regexp "^hpacc-" "$compiler_info" ] } { set hp_aCC_compiler 1 }
2498 # Log what happened.
2499 verbose -log "get_compiler_info: $compiler_info"
2501 # Most compilers will evaluate comparisons and other boolean
2502 # operations to 0 or 1.
2503 uplevel \#0 { set true 1 }
2504 uplevel \#0 { set false 0 }
2506 # Use of aCC results in boolean results being displayed as
2508 if { $hp_aCC_compiler } {
2509 uplevel \#0 { set true true }
2510 uplevel \#0 { set false false }
2516 proc test_compiler_info { {compiler ""} } {
2517 global compiler_info
2519 # if no arg, return the compiler_info string
2521 if [string match "" $compiler] {
2522 if [info exists compiler_info] {
2523 return $compiler_info
2525 perror "No compiler info found."
2529 return [string match $compiler $compiler_info]
2532 proc current_target_name { } {
2534 if [info exists target_info(target,name)] {
2535 set answer $target_info(target,name)
2542 set gdb_wrapper_initialized 0
2543 set gdb_wrapper_target ""
2545 proc gdb_wrapper_init { args } {
2546 global gdb_wrapper_initialized
2547 global gdb_wrapper_file
2548 global gdb_wrapper_flags
2549 global gdb_wrapper_target
2551 if { $gdb_wrapper_initialized == 1 } { return; }
2553 if {[target_info exists needs_status_wrapper] && \
2554 [target_info needs_status_wrapper] != "0"} {
2555 set result [build_wrapper "testglue.o"]
2556 if { $result != "" } {
2557 set gdb_wrapper_file [lindex $result 0]
2558 set gdb_wrapper_flags [lindex $result 1]
2560 warning "Status wrapper failed to build."
2563 set gdb_wrapper_initialized 1
2564 set gdb_wrapper_target [current_target_name]
2567 # Some targets need to always link a special object in. Save its path here.
2568 global gdb_saved_set_unbuffered_mode_obj
2569 set gdb_saved_set_unbuffered_mode_obj ""
2571 proc gdb_compile {source dest type options} {
2572 global GDB_TESTCASE_OPTIONS
2573 global gdb_wrapper_file
2574 global gdb_wrapper_flags
2575 global gdb_wrapper_initialized
2578 global gdb_saved_set_unbuffered_mode_obj
2580 set outdir [file dirname $dest]
2582 # Add platform-specific options if a shared library was specified using
2583 # "shlib=librarypath" in OPTIONS.
2587 foreach opt $options {
2588 if [regexp {^shlib=(.*)} $opt dummy_var shlib_name] {
2589 if [test_compiler_info "xlc-*"] {
2590 # IBM xlc compiler doesn't accept shared library named other
2591 # than .so: use "-Wl," to bypass this
2592 lappend source "-Wl,$shlib_name"
2593 } elseif { ([istarget "*-*-mingw*"]
2594 || [istarget *-*-cygwin*]
2595 || [istarget *-*-pe*])} {
2596 lappend source "${shlib_name}.a"
2598 lappend source $shlib_name
2600 if { $shlib_found == 0 } {
2602 if { ([istarget "*-*-mingw*"]
2603 || [istarget *-*-cygwin*]) } {
2604 lappend new_options "additional_flags=-Wl,--enable-auto-import"
2607 } elseif { $opt == "shlib_load" } {
2610 lappend new_options $opt
2614 # We typically link to shared libraries using an absolute path, and
2615 # that's how they are found at runtime. If we are going to
2616 # dynamically load one by basename, we must specify rpath. If we
2617 # are using a remote host, DejaGNU will link to the shared library
2618 # using a relative path, so again we must specify an rpath.
2619 if { $shlib_load || ($shlib_found && [is_remote target]) } {
2620 if { ([istarget "*-*-mingw*"]
2621 || [istarget *-*-cygwin*]
2622 || [istarget *-*-pe*]
2623 || [istarget hppa*-*-hpux*])} {
2624 # Do not need anything.
2625 } elseif { [istarget *-*-freebsd*] || [istarget *-*-openbsd*] } {
2626 lappend new_options "ldflags=-Wl,-rpath,${outdir}"
2627 } elseif { [istarget arm*-*-symbianelf*] } {
2628 if { $shlib_load } {
2629 lappend new_options "libs=-ldl"
2632 if { $shlib_load } {
2633 lappend new_options "libs=-ldl"
2635 lappend new_options "ldflags=-Wl,-rpath,\\\$ORIGIN"
2638 set options $new_options
2640 if [target_info exists is_vxworks] {
2641 set options2 { "additional_flags=-Dvxworks" }
2642 set options [concat $options2 $options]
2644 if [info exists GDB_TESTCASE_OPTIONS] {
2645 lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"
2647 verbose "options are $options"
2648 verbose "source is $source $dest $type $options"
2650 if { $gdb_wrapper_initialized == 0 } { gdb_wrapper_init }
2652 if {[target_info exists needs_status_wrapper] && \
2653 [target_info needs_status_wrapper] != "0" && \
2654 [info exists gdb_wrapper_file]} {
2655 lappend options "libs=${gdb_wrapper_file}"
2656 lappend options "ldflags=${gdb_wrapper_flags}"
2659 # Replace the "nowarnings" option with the appropriate additional_flags
2660 # to disable compiler warnings.
2661 set nowarnings [lsearch -exact $options nowarnings]
2662 if {$nowarnings != -1} {
2663 if [target_info exists gdb,nowarnings_flag] {
2664 set flag "additional_flags=[target_info gdb,nowarnings_flag]"
2666 set flag "additional_flags=-w"
2668 set options [lreplace $options $nowarnings $nowarnings $flag]
2671 if { $type == "executable" } {
2672 if { ([istarget "*-*-mingw*"]
2673 || [istarget "*-*-*djgpp"]
2674 || [istarget "*-*-cygwin*"])} {
2675 # Force output to unbuffered mode, by linking in an object file
2676 # with a global contructor that calls setvbuf.
2678 # Compile the special object seperatelly for two reasons:
2679 # 1) Insulate it from $options.
2680 # 2) Avoid compiling it for every gdb_compile invocation,
2681 # which is time consuming, especially if we're remote
2684 if { $gdb_saved_set_unbuffered_mode_obj == "" } {
2685 verbose "compiling gdb_saved_set_unbuffered_obj"
2686 set unbuf_src ${srcdir}/lib/set_unbuffered_mode.c
2687 set unbuf_obj ${objdir}/set_unbuffered_mode.o
2689 set result [gdb_compile "${unbuf_src}" "${unbuf_obj}" object {nowarnings}]
2690 if { $result != "" } {
2693 if {[is_remote host]} {
2694 set gdb_saved_set_unbuffered_mode_obj set_unbuffered_mode_saved.o
2696 set gdb_saved_set_unbuffered_mode_obj ${objdir}/set_unbuffered_mode_saved.o
2698 # Link a copy of the output object, because the
2699 # original may be automatically deleted.
2700 remote_download host $unbuf_obj $gdb_saved_set_unbuffered_mode_obj
2702 verbose "gdb_saved_set_unbuffered_obj already compiled"
2705 # Rely on the internal knowledge that the global ctors are ran in
2706 # reverse link order. In that case, we can use ldflags to
2707 # avoid copying the object file to the host multiple
2709 # This object can only be added if standard libraries are
2710 # used. Thus, we need to disable it if -nostdlib option is used
2711 if {[lsearch -regexp $options "-nostdlib"] < 0 } {
2712 lappend options "ldflags=$gdb_saved_set_unbuffered_mode_obj"
2717 set result [target_compile $source $dest $type $options]
2719 # Prune uninteresting compiler (and linker) output.
2720 regsub "Creating library file: \[^\r\n\]*\[\r\n\]+" $result "" result
2722 regsub "\[\r\n\]*$" "$result" "" result
2723 regsub "^\[\r\n\]*" "$result" "" result
2725 if {[lsearch $options quiet] < 0} {
2726 # We shall update this on a per language basis, to avoid
2727 # changing the entire testsuite in one go.
2728 if {[lsearch $options f77] >= 0} {
2729 gdb_compile_test $source $result
2730 } elseif { $result != "" } {
2731 clone_output "gdb compile failed, $result"
2738 # This is just like gdb_compile, above, except that it tries compiling
2739 # against several different thread libraries, to see which one this
2741 proc gdb_compile_pthreads {source dest type options} {
2743 set why_msg "unrecognized error"
2744 foreach lib {-lpthreads -lpthread -lthread ""} {
2745 # This kind of wipes out whatever libs the caller may have
2746 # set. Or maybe theirs will override ours. How infelicitous.
2747 set options_with_lib [concat $options [list libs=$lib quiet]]
2748 set ccout [gdb_compile $source $dest $type $options_with_lib]
2749 switch -regexp -- $ccout {
2750 ".*no posix threads support.*" {
2751 set why_msg "missing threads include file"
2754 ".*cannot open -lpthread.*" {
2755 set why_msg "missing runtime threads library"
2757 ".*Can't find library for -lpthread.*" {
2758 set why_msg "missing runtime threads library"
2761 pass "successfully compiled posix threads test case"
2767 if {!$built_binfile} {
2768 unsupported "Couldn't compile $source: ${why_msg}"
2773 # Build a shared library from SOURCES. You must use get_compiler_info
2776 proc gdb_compile_shlib {sources dest options} {
2777 set obj_options $options
2779 switch -glob [test_compiler_info] {
2781 lappend obj_options "additional_flags=-qpic"
2784 if { !([istarget "powerpc*-*-aix*"]
2785 || [istarget "rs6000*-*-aix*"]
2786 || [istarget "*-*-cygwin*"]
2787 || [istarget "*-*-mingw*"]
2788 || [istarget "*-*-pe*"]) } {
2789 lappend obj_options "additional_flags=-fpic"
2793 switch -glob [istarget] {
2795 lappend obj_options "additional_flags=+z"
2798 # Disable SGI compiler's implicit -Dsgi
2799 lappend obj_options "additional_flags=-Usgi"
2802 # don't know what the compiler is...
2808 set outdir [file dirname $dest]
2810 foreach source $sources {
2811 set sourcebase [file tail $source]
2812 if {[gdb_compile $source "${outdir}/${sourcebase}.o" object $obj_options] != ""} {
2815 lappend objects ${outdir}/${sourcebase}.o
2818 if [istarget "hppa*-*-hpux*"] {
2819 remote_exec build "ld -b ${objects} -o ${dest}"
2821 set link_options $options
2822 if [test_compiler_info "xlc-*"] {
2823 lappend link_options "additional_flags=-qmkshrobj"
2825 lappend link_options "additional_flags=-shared"
2827 if { ([istarget "*-*-mingw*"]
2828 || [istarget *-*-cygwin*]
2829 || [istarget *-*-pe*]) } {
2830 if { [is_remote host] } {
2831 set name [file tail ${dest}]
2835 lappend link_options "additional_flags=-Wl,--out-implib,${name}.a"
2836 } elseif [is_remote target] {
2837 # By default, we do not set the soname. This causes the linker
2838 # on ELF systems to create a DT_NEEDED entry in the executable
2839 # refering to the full path name of the library. This is a
2840 # problem in remote testing if the library is in a different
2841 # directory there. To fix this, we set a soname of just the
2842 # base filename for the library, and add an appropriate -rpath
2843 # to the main executable (in gdb_compile).
2844 set destbase [file tail $dest]
2845 lappend link_options "additional_flags=-Wl,-soname,$destbase"
2848 if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} {
2851 if { [is_remote host]
2852 && ([istarget "*-*-mingw*"]
2853 || [istarget *-*-cygwin*]
2854 || [istarget *-*-pe*]) } {
2855 set dest_tail_name [file tail ${dest}]
2856 remote_upload host $dest_tail_name.a ${dest}.a
2857 remote_file host delete $dest_tail_name.a
2863 # This is just like gdb_compile_shlib, above, except that it tries compiling
2864 # against several different thread libraries, to see which one this
2866 proc gdb_compile_shlib_pthreads {sources dest options} {
2868 set why_msg "unrecognized error"
2869 foreach lib {-lpthreads -lpthread -lthread ""} {
2870 # This kind of wipes out whatever libs the caller may have
2871 # set. Or maybe theirs will override ours. How infelicitous.
2872 set options_with_lib [concat $options [list libs=$lib quiet]]
2873 set ccout [gdb_compile_shlib $sources $dest $options_with_lib]
2874 switch -regexp -- $ccout {
2875 ".*no posix threads support.*" {
2876 set why_msg "missing threads include file"
2879 ".*cannot open -lpthread.*" {
2880 set why_msg "missing runtime threads library"
2882 ".*Can't find library for -lpthread.*" {
2883 set why_msg "missing runtime threads library"
2886 pass "successfully compiled posix threads test case"
2892 if {!$built_binfile} {
2893 unsupported "Couldn't compile $sources: ${why_msg}"
2898 # This is just like gdb_compile_pthreads, above, except that we always add the
2899 # objc library for compiling Objective-C programs
2900 proc gdb_compile_objc {source dest type options} {
2902 set why_msg "unrecognized error"
2903 foreach lib {-lobjc -lpthreads -lpthread -lthread solaris} {
2904 # This kind of wipes out whatever libs the caller may have
2905 # set. Or maybe theirs will override ours. How infelicitous.
2906 if { $lib == "solaris" } {
2907 set lib "-lpthread -lposix4"
2909 if { $lib != "-lobjc" } {
2910 set lib "-lobjc $lib"
2912 set options_with_lib [concat $options [list libs=$lib quiet]]
2913 set ccout [gdb_compile $source $dest $type $options_with_lib]
2914 switch -regexp -- $ccout {
2915 ".*no posix threads support.*" {
2916 set why_msg "missing threads include file"
2919 ".*cannot open -lpthread.*" {
2920 set why_msg "missing runtime threads library"
2922 ".*Can't find library for -lpthread.*" {
2923 set why_msg "missing runtime threads library"
2926 pass "successfully compiled objc with posix threads test case"
2932 if {!$built_binfile} {
2933 unsupported "Couldn't compile $source: ${why_msg}"
2938 proc send_gdb { string } {
2939 global suppress_flag
2940 if { $suppress_flag } {
2943 return [remote_send host "$string"]
2949 proc gdb_expect { args } {
2950 if { [llength $args] == 2 && [lindex $args 0] != "-re" } {
2951 set atimeout [lindex $args 0]
2952 set expcode [list [lindex $args 1]]
2957 upvar timeout timeout
2959 if [target_info exists gdb,timeout] {
2960 if [info exists timeout] {
2961 if { $timeout < [target_info gdb,timeout] } {
2962 set gtimeout [target_info gdb,timeout]
2964 set gtimeout $timeout
2967 set gtimeout [target_info gdb,timeout]
2971 if ![info exists gtimeout] {
2973 if [info exists timeout] {
2974 set gtimeout $timeout
2978 if [info exists atimeout] {
2979 if { ![info exists gtimeout] || $gtimeout < $atimeout } {
2980 set gtimeout $atimeout
2983 if ![info exists gtimeout] {
2989 global suppress_flag
2990 global remote_suppress_flag
2991 if [info exists remote_suppress_flag] {
2992 set old_val $remote_suppress_flag
2994 if [info exists suppress_flag] {
2995 if { $suppress_flag } {
2996 set remote_suppress_flag 1
3000 {uplevel remote_expect host $gtimeout $expcode} string]
3001 if [info exists old_val] {
3002 set remote_suppress_flag $old_val
3004 if [info exists remote_suppress_flag] {
3005 unset remote_suppress_flag
3010 global errorInfo errorCode
3012 return -code error -errorinfo $errorInfo -errorcode $errorCode $string
3014 return -code $code $string
3018 # gdb_expect_list TEST SENTINEL LIST -- expect a sequence of outputs
3020 # Check for long sequence of output by parts.
3021 # TEST: is the test message to be printed with the test success/fail.
3022 # SENTINEL: Is the terminal pattern indicating that output has finished.
3023 # LIST: is the sequence of outputs to match.
3024 # If the sentinel is recognized early, it is considered an error.
3027 # 1 if the test failed,
3028 # 0 if the test passes,
3029 # -1 if there was an internal error.
3031 proc gdb_expect_list {test sentinel list} {
3033 global suppress_flag
3036 if { $suppress_flag } {
3038 unresolved "${test}"
3040 while { ${index} < [llength ${list}] } {
3041 set pattern [lindex ${list} ${index}]
3042 set index [expr ${index} + 1]
3043 verbose -log "gdb_expect_list pattern: /$pattern/" 2
3044 if { ${index} == [llength ${list}] } {
3047 -re "${pattern}${sentinel}" {
3048 # pass "${test}, pattern ${index} + sentinel"
3051 fail "${test} (pattern ${index} + sentinel)"
3054 -re ".*A problem internal to GDB has been detected" {
3055 fail "${test} (GDB internal error)"
3057 gdb_internal_error_resync
3060 fail "${test} (pattern ${index} + sentinel) (timeout)"
3065 # unresolved "${test}, pattern ${index} + sentinel"
3071 # pass "${test}, pattern ${index}"
3074 fail "${test} (pattern ${index})"
3077 -re ".*A problem internal to GDB has been detected" {
3078 fail "${test} (GDB internal error)"
3080 gdb_internal_error_resync
3083 fail "${test} (pattern ${index}) (timeout)"
3088 # unresolved "${test}, pattern ${index}"
3102 proc gdb_suppress_entire_file { reason } {
3103 global suppress_flag
3106 set suppress_flag -1
3110 # Set suppress_flag, which will cause all subsequent calls to send_gdb and
3111 # gdb_expect to fail immediately (until the next call to
3112 # gdb_stop_suppressing_tests).
3114 proc gdb_suppress_tests { args } {
3115 global suppress_flag
3117 return; # fnf - disable pending review of results where
3118 # testsuite ran better without this
3121 if { $suppress_flag == 1 } {
3122 if { [llength $args] > 0 } {
3123 warning "[lindex $args 0]\n"
3125 warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n"
3131 # Clear suppress_flag.
3133 proc gdb_stop_suppressing_tests { } {
3134 global suppress_flag
3136 if [info exists suppress_flag] {
3137 if { $suppress_flag > 0 } {
3139 clone_output "Tests restarted.\n"
3146 proc gdb_clear_suppressed { } {
3147 global suppress_flag
3152 proc gdb_start { } {
3157 catch default_gdb_exit
3161 # gdb_load_cmd -- load a file into the debugger.
3162 # ARGS - additional args to load command.
3163 # return a -1 if anything goes wrong.
3165 proc gdb_load_cmd { args } {
3168 if [target_info exists gdb_load_timeout] {
3169 set loadtimeout [target_info gdb_load_timeout]
3171 set loadtimeout 1600
3173 send_gdb "load $args\n"
3174 verbose "Timeout is now $loadtimeout seconds" 2
3175 gdb_expect $loadtimeout {
3176 -re "Loading section\[^\r\]*\r\n" {
3179 -re "Start address\[\r\]*\r\n" {
3182 -re "Transfer rate\[\r\]*\r\n" {
3185 -re "Memory access error\[^\r\]*\r\n" {
3186 perror "Failed to load program"
3189 -re "$gdb_prompt $" {
3192 -re "(.*)\r\n$gdb_prompt " {
3193 perror "Unexpected reponse from 'load' -- $expect_out(1,string)"
3197 perror "Timed out trying to load $args."
3204 # Invoke "gcore". CORE is the name of the core file to write. TEST
3205 # is the name of the test case. This will return 1 if the core file
3206 # was created, 0 otherwise. If this fails to make a core file because
3207 # this configuration of gdb does not support making core files, it
3208 # will call "unsupported", not "fail". However, if this fails to make
3209 # a core file for some other reason, then it will call "fail".
3211 proc gdb_gcore_cmd {core test} {
3215 gdb_test_multiple "gcore $core" $test {
3216 -re "Saved corefile .*\[\r\n\]+$gdb_prompt $" {
3221 -re "Undefined command.*$gdb_prompt $" {
3223 verbose -log "'gcore' command undefined in gdb_gcore_cmd"
3226 -re "(?:Can't create a corefile|Target does not support core file generation\\.)\[\r\n\]+$gdb_prompt $" {
3234 # Load core file CORE. TEST is the name of the test case.
3235 # This will record a pass/fail for loading the core file.
3237 # 1 - core file is successfully loaded
3238 # 0 - core file loaded but has a non fatal error
3239 # -1 - core file failed to load
3241 proc gdb_core_cmd { core test } {
3244 gdb_test_multiple "core $core" "$test" {
3245 -re "\\\[Thread debugging using \[^ \r\n\]* enabled\\\]\r\n" {
3248 -re " is not a core dump:.*\r\n$gdb_prompt $" {
3249 fail "$test (bad file format)"
3252 -re ": No such file or directory.*\r\n$gdb_prompt $" {
3253 fail "$test (file not found)"
3256 -re "Couldn't find .* registers in core file.*\r\n$gdb_prompt $" {
3257 fail "$test (incomplete note section)"
3260 -re "Core was generated by .*\r\n$gdb_prompt $" {
3264 -re ".*$gdb_prompt $" {
3269 fail "$test (timeout)"
3273 fail "unsupported output from 'core' command"
3277 # Return the filename to download to the target and load on the target
3278 # for this shared library. Normally just LIBNAME, unless shared libraries
3279 # for this target have separate link and load images.
3281 proc shlib_target_file { libname } {
3285 # Return the filename GDB will load symbols from when debugging this
3286 # shared library. Normally just LIBNAME, unless shared libraries for
3287 # this target have separate link and load images.
3289 proc shlib_symbol_file { libname } {
3293 # Return the filename to download to the target and load for this
3294 # executable. Normally just BINFILE unless it is renamed to something
3295 # else for this target.
3297 proc exec_target_file { binfile } {
3301 # Return the filename GDB will load symbols from when debugging this
3302 # executable. Normally just BINFILE unless executables for this target
3303 # have separate files for symbols.
3305 proc exec_symbol_file { binfile } {
3309 # Rename the executable file. Normally this is just BINFILE1 being renamed
3310 # to BINFILE2, but some targets require multiple binary files.
3311 proc gdb_rename_execfile { binfile1 binfile2 } {
3312 file rename -force [exec_target_file ${binfile1}] \
3313 [exec_target_file ${binfile2}]
3314 if { [exec_target_file ${binfile1}] != [exec_symbol_file ${binfile1}] } {
3315 file rename -force [exec_symbol_file ${binfile1}] \
3316 [exec_symbol_file ${binfile2}]
3320 # "Touch" the executable file to update the date. Normally this is just
3321 # BINFILE, but some targets require multiple files.
3322 proc gdb_touch_execfile { binfile } {
3323 set time [clock seconds]
3324 file mtime [exec_target_file ${binfile}] $time
3325 if { [exec_target_file ${binfile}] != [exec_symbol_file ${binfile}] } {
3326 file mtime [exec_symbol_file ${binfile}] $time
3330 # Like remote_download but provides a gdb-specific behavior. If DEST
3331 # is "host", and the host is not remote, and TOFILE is not specified,
3332 # then the [file tail] of FROMFILE is passed through
3333 # standard_output_file to compute the destination.
3335 proc gdb_remote_download {dest fromfile {tofile {}}} {
3336 if {$dest == "host" && ![is_remote host] && $tofile == ""} {
3337 set tofile [standard_output_file [file tail $fromfile]]
3340 if { $tofile == "" } {
3341 return [remote_download $dest $fromfile]
3343 return [remote_download $dest $fromfile $tofile]
3349 # Copy a file to the remote target and return its target filename.
3350 # Schedule the file to be deleted at the end of this test.
3352 proc gdb_download { filename } {
3355 set destname [remote_download target $filename]
3356 lappend cleanfiles $destname
3360 # gdb_load_shlibs LIB...
3362 # Copy the listed libraries to the target.
3364 proc gdb_load_shlibs { args } {
3365 if {![is_remote target]} {
3369 foreach file $args {
3370 gdb_download [shlib_target_file $file]
3373 # Even if the target supplies full paths for shared libraries,
3374 # they may not be paths for this system.
3375 gdb_test "set solib-search-path [file dirname [lindex $args 0]]" "" ""
3379 # gdb_load -- load a file into the debugger.
3380 # Many files in config/*.exp override this procedure.
3382 proc gdb_load { arg } {
3383 return [gdb_file_cmd $arg]
3386 # gdb_reload -- load a file into the target. Called before "running",
3387 # either the first time or after already starting the program once,
3388 # for remote targets. Most files that override gdb_load should now
3389 # override this instead.
3391 proc gdb_reload { } {
3392 # For the benefit of existing configurations, default to gdb_load.
3393 # Specifying no file defaults to the executable currently being
3395 return [gdb_load ""]
3398 proc gdb_continue { function } {
3401 return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]
3404 proc default_gdb_init { args } {
3405 global gdb_wrapper_initialized
3406 global gdb_wrapper_target
3407 global gdb_test_file_name
3412 gdb_clear_suppressed
3414 set gdb_test_file_name [file rootname [file tail [lindex $args 0]]]
3416 # Make sure that the wrapper is rebuilt
3417 # with the appropriate multilib option.
3418 if { $gdb_wrapper_target != [current_target_name] } {
3419 set gdb_wrapper_initialized 0
3422 # Unlike most tests, we have a small number of tests that generate
3423 # a very large amount of output. We therefore increase the expect
3424 # buffer size to be able to contain the entire test output.
3426 # Also set this value for the currently running GDB.
3427 match_max [match_max -d]
3429 # We want to add the name of the TCL testcase to the PASS/FAIL messages.
3430 if { [llength $args] > 0 } {
3433 set file [lindex $args 0]
3435 set pf_prefix "[file tail [file dirname $file]]/[file tail $file]:"
3438 if [target_info exists gdb_prompt] {
3439 set gdb_prompt [target_info gdb_prompt]
3441 set gdb_prompt "\\(gdb\\)"
3444 if [info exists use_gdb_stub] {
3449 # Turn BASENAME into a full file name in the standard output
3450 # directory. It is ok if BASENAME is the empty string; in this case
3451 # the directory is returned.
3453 proc standard_output_file {basename} {
3454 global objdir subdir gdb_test_file_name GDB_PARALLEL
3456 if {[info exists GDB_PARALLEL]} {
3457 set dir [file join $objdir outputs $subdir $gdb_test_file_name]
3459 return [file join $dir $basename]
3461 return [file join $objdir $subdir $basename]
3465 # Return the name of a file in our standard temporary directory.
3467 proc standard_temp_file {basename} {
3468 global objdir GDB_PARALLEL
3470 if {[info exists GDB_PARALLEL]} {
3471 return [file join $objdir temp $basename]
3477 # Set 'testfile', 'srcfile', and 'binfile'.
3479 # ARGS is a list of source file specifications.
3480 # Without any arguments, the .exp file's base name is used to
3481 # compute the source file name. The ".c" extension is added in this case.
3482 # If ARGS is not empty, each entry is a source file specification.
3483 # If the specification starts with a ".", it is treated as a suffix
3484 # to append to the .exp file's base name.
3485 # If the specification is the empty string, it is treated as if it
3487 # Otherwise it is a file name.
3488 # The first file in the list is used to set the 'srcfile' global.
3489 # Each subsequent name is used to set 'srcfile2', 'srcfile3', etc.
3491 # Most tests should call this without arguments.
3493 # If a completely different binary file name is needed, then it
3494 # should be handled in the .exp file with a suitable comment.
3496 proc standard_testfile {args} {
3497 global gdb_test_file_name
3499 global gdb_test_file_last_vars
3502 global testfile binfile
3504 set testfile $gdb_test_file_name
3505 set binfile [standard_output_file ${testfile}]
3507 if {[llength $args] == 0} {
3511 # Unset our previous output variables.
3512 # This can help catch hidden bugs.
3513 if {[info exists gdb_test_file_last_vars]} {
3514 foreach varname $gdb_test_file_last_vars {
3516 catch {unset $varname}
3519 # 'executable' is often set by tests.
3520 set gdb_test_file_last_vars {executable}
3524 set varname srcfile$suffix
3527 # Handle an extension.
3530 } elseif {[string range $arg 0 0] == "."} {
3531 set arg $testfile$arg
3535 lappend gdb_test_file_last_vars $varname
3537 if {$suffix == ""} {
3545 # The default timeout used when testing GDB commands. We want to use
3546 # the same timeout as the default dejagnu timeout, unless the user has
3547 # already provided a specific value (probably through a site.exp file).
3548 global gdb_test_timeout
3549 if ![info exists gdb_test_timeout] {
3550 set gdb_test_timeout $timeout
3553 # A list of global variables that GDB testcases should not use.
3554 # We try to prevent their use by monitoring write accesses and raising
3555 # an error when that happens.
3556 set banned_variables { bug_id prms_id }
3558 # A list of procedures that GDB testcases should not use.
3559 # We try to prevent their use by monitoring invocations and raising
3560 # an error when that happens.
3561 set banned_procedures { strace }
3563 # gdb_init is called by runtest at start, but also by several
3564 # tests directly; gdb_finish is only called from within runtest after
3565 # each test source execution.
3566 # Placing several traces by repetitive calls to gdb_init leads
3567 # to problems, as only one trace is removed in gdb_finish.
3568 # To overcome this possible problem, we add a variable that records
3569 # if the banned variables and procedures are already traced.
3572 proc gdb_init { args } {
3573 # Reset the timeout value to the default. This way, any testcase
3574 # that changes the timeout value without resetting it cannot affect
3575 # the timeout used in subsequent testcases.
3576 global gdb_test_timeout
3578 set timeout $gdb_test_timeout
3580 # If GDB_INOTIFY is given, check for writes to '.'. This is a
3581 # debugging tool to help confirm that the test suite is
3582 # parallel-safe. You need "inotifywait" from the
3583 # inotify-tools package to use this.
3584 global GDB_INOTIFY inotify_pid
3585 if {[info exists GDB_INOTIFY] && ![info exists inotify_pid]} {
3586 global outdir tool inotify_log_file
3588 set exclusions {outputs temp gdb[.](log|sum) cache}
3589 set exclusion_re ([join $exclusions |])
3591 set inotify_log_file [standard_temp_file inotify.out]
3592 set inotify_pid [exec inotifywait -r -m -e move,create,delete . \
3593 --exclude $exclusion_re \
3594 |& tee -a $outdir/$tool.log $inotify_log_file &]
3596 # Wait for the watches; hopefully this is long enough.
3599 # Clear the log so that we don't emit a warning the first time
3601 set fd [open $inotify_log_file w]
3605 # Block writes to all banned variables, and invocation of all
3606 # banned procedures...
3607 global banned_variables
3608 global banned_procedures
3609 global banned_traced
3610 if (!$banned_traced) {
3611 foreach banned_var $banned_variables {
3612 global "$banned_var"
3613 trace add variable "$banned_var" write error
3615 foreach banned_proc $banned_procedures {
3616 global "$banned_proc"
3617 trace add execution "$banned_proc" enter error
3622 # We set LC_ALL, LC_CTYPE, and LANG to C so that we get the same
3623 # messages as expected.
3628 # Don't let a .inputrc file or an existing setting of INPUTRC mess up
3629 # the test results. Even if /dev/null doesn't exist on the particular
3630 # platform, the readline library will use the default setting just by
3631 # failing to open the file. OTOH, opening /dev/null successfully will
3632 # also result in the default settings being used since nothing will be
3633 # read from this file.
3634 setenv INPUTRC "/dev/null"
3636 # The gdb.base/readline.exp arrow key test relies on the standard VT100
3637 # bindings, so make sure that an appropriate terminal is selected.
3638 # The same bug doesn't show up if we use ^P / ^N instead.
3641 # Some tests (for example gdb.base/maint.exp) shell out from gdb to use
3642 # grep. Clear GREP_OPTIONS to make the behavior predictable,
3643 # especially having color output turned on can cause tests to fail.
3644 setenv GREP_OPTIONS ""
3646 # Clear $gdbserver_reconnect_p.
3647 global gdbserver_reconnect_p
3648 set gdbserver_reconnect_p 1
3649 unset gdbserver_reconnect_p
3651 return [eval default_gdb_init $args]
3654 proc gdb_finish { } {
3655 global gdbserver_reconnect_p
3659 # Give persistent gdbserver a chance to terminate before GDB is killed.
3660 if {[info exists gdbserver_reconnect_p] && $gdbserver_reconnect_p} {
3667 -re "$gdb_prompt $" {
3672 # Exit first, so that the files are no longer in use.
3675 if { [llength $cleanfiles] > 0 } {
3676 eval remote_file target delete $cleanfiles
3680 # Unblock write access to the banned variables. Dejagnu typically
3681 # resets some of them between testcases.
3682 global banned_variables
3683 global banned_procedures
3684 global banned_traced
3685 if ($banned_traced) {
3686 foreach banned_var $banned_variables {
3687 global "$banned_var"
3688 trace remove variable "$banned_var" write error
3690 foreach banned_proc $banned_procedures {
3691 global "$banned_proc"
3692 trace remove execution "$banned_proc" enter error
3699 set debug_format "unknown"
3701 # Run the gdb command "info source" and extract the debugging format
3702 # information from the output and save it in debug_format.
3704 proc get_debug_format { } {
3710 set debug_format "unknown"
3711 send_gdb "info source\n"
3713 -re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" {
3714 set debug_format $expect_out(1,string)
3715 verbose "debug format is $debug_format"
3718 -re "No current source file.\r\n$gdb_prompt $" {
3719 perror "get_debug_format used when no current source file"
3722 -re "$gdb_prompt $" {
3723 warning "couldn't check debug format (no valid response)."
3727 warning "couldn't check debug format (timeout)."
3733 # Return true if FORMAT matches the debug format the current test was
3734 # compiled with. FORMAT is a shell-style globbing pattern; it can use
3735 # `*', `[...]', and so on.
3737 # This function depends on variables set by `get_debug_format', above.
3739 proc test_debug_format {format} {
3742 return [expr [string match $format $debug_format] != 0]
3745 # Like setup_xfail, but takes the name of a debug format (DWARF 1,
3746 # COFF, stabs, etc). If that format matches the format that the
3747 # current test was compiled with, then the next test is expected to
3748 # fail for any target. Returns 1 if the next test or set of tests is
3749 # expected to fail, 0 otherwise (or if it is unknown). Must have
3750 # previously called get_debug_format.
3751 proc setup_xfail_format { format } {
3752 set ret [test_debug_format $format]
3760 # gdb_get_line_number TEXT [FILE]
3762 # Search the source file FILE, and return the line number of the
3763 # first line containing TEXT. If no match is found, an error is thrown.
3765 # TEXT is a string literal, not a regular expression.
3767 # The default value of FILE is "$srcdir/$subdir/$srcfile". If FILE is
3768 # specified, and does not start with "/", then it is assumed to be in
3769 # "$srcdir/$subdir". This is awkward, and can be fixed in the future,
3770 # by changing the callers and the interface at the same time.
3771 # In particular: gdb.base/break.exp, gdb.base/condbreak.exp,
3772 # gdb.base/ena-dis-br.exp.
3774 # Use this function to keep your test scripts independent of the
3775 # exact line numbering of the source file. Don't write:
3777 # send_gdb "break 20"
3779 # This means that if anyone ever edits your test's source file,
3780 # your test could break. Instead, put a comment like this on the
3781 # source file line you want to break at:
3783 # /* breakpoint spot: frotz.exp: test name */
3785 # and then write, in your test script (which we assume is named
3788 # send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n"
3790 # (Yes, Tcl knows how to handle the nested quotes and brackets.
3793 # % puts "foo [lindex "bar baz" 1]"
3796 # Tcl is quite clever, for a little stringy language.)
3800 # The previous implementation of this procedure used the gdb search command.
3801 # This version is different:
3803 # . It works with MI, and it also works when gdb is not running.
3805 # . It operates on the build machine, not the host machine.
3807 # . For now, this implementation fakes a current directory of
3808 # $srcdir/$subdir to be compatible with the old implementation.
3809 # This will go away eventually and some callers will need to
3812 # . The TEXT argument is literal text and matches literally,
3813 # not a regular expression as it was before.
3815 # . State changes in gdb, such as changing the current file
3816 # and setting $_, no longer happen.
3818 # After a bit of time we can forget about the differences from the
3819 # old implementation.
3821 # --chastain 2004-08-05
3823 proc gdb_get_line_number { text { file "" } } {
3828 if { "$file" == "" } then {
3831 if { ! [regexp "^/" "$file"] } then {
3832 set file "$srcdir/$subdir/$file"
3835 if { [ catch { set fd [open "$file"] } message ] } then {
3840 for { set line 1 } { 1 } { incr line } {
3841 if { [ catch { set nchar [gets "$fd" body] } message ] } then {
3844 if { $nchar < 0 } then {
3847 if { [string first "$text" "$body"] >= 0 } then {
3853 if { [ catch { close "$fd" } message ] } then {
3858 error "undefined tag \"$text\""
3864 # Continue the program until it ends.
3866 # MSSG is the error message that gets printed. If not given, a
3868 # COMMAND is the command to invoke. If not given, "continue" is
3870 # ALLOW_EXTRA is a flag indicating whether the test should expect
3871 # extra output between the "Continuing." line and the program
3872 # exiting. By default it is zero; if nonzero, any extra output
3875 proc gdb_continue_to_end {{mssg ""} {command continue} {allow_extra 0}} {
3876 global inferior_exited_re use_gdb_stub
3879 set text "continue until exit"
3881 set text "continue until exit at $mssg"
3889 # By default, we don't rely on exit() behavior of remote stubs --
3890 # it's common for exit() to be implemented as a simple infinite
3891 # loop, or a forced crash/reset. For native targets, by default, we
3892 # assume process exit is reported as such. If a non-reliable target
3893 # is used, we set a breakpoint at exit, and continue to that.
3894 if { [target_info exists exit_is_reliable] } {
3895 set exit_is_reliable [target_info exit_is_reliable]
3897 set exit_is_reliable [expr ! $use_gdb_stub]
3900 if { ! $exit_is_reliable } {
3901 if {![gdb_breakpoint "exit"]} {
3904 gdb_test $command "Continuing..*Breakpoint .*exit.*" \
3907 # Continue until we exit. Should not stop again.
3908 # Don't bother to check the output of the program, that may be
3909 # extremely tough for some remote systems.
3911 "Continuing.\[\r\n0-9\]+${extra}(... EXIT code 0\[\r\n\]+|$inferior_exited_re normally).*"\
3916 proc rerun_to_main {} {
3917 global gdb_prompt use_gdb_stub
3922 -re ".*Breakpoint .*main .*$gdb_prompt $"\
3923 {pass "rerun to main" ; return 0}
3924 -re "$gdb_prompt $"\
3925 {fail "rerun to main" ; return 0}
3926 timeout {fail "(timeout) rerun to main" ; return 0}
3931 -re "The program .* has been started already.*y or n. $" {
3935 -re "Starting program.*$gdb_prompt $"\
3936 {pass "rerun to main" ; return 0}
3937 -re "$gdb_prompt $"\
3938 {fail "rerun to main" ; return 0}
3939 timeout {fail "(timeout) rerun to main" ; return 0}
3944 # Print a message and return true if a test should be skipped
3945 # due to lack of floating point suport.
3947 proc gdb_skip_float_test { msg } {
3948 if [target_info exists gdb,skip_float_tests] {
3949 verbose "Skipping test '$msg': no float tests."
3955 # Print a message and return true if a test should be skipped
3956 # due to lack of stdio support.
3958 proc gdb_skip_stdio_test { msg } {
3959 if [target_info exists gdb,noinferiorio] {
3960 verbose "Skipping test '$msg': no inferior i/o."
3966 proc gdb_skip_bogus_test { msg } {
3970 # Return true if a test should be skipped due to lack of XML support
3972 # NOTE: This must be called while gdb is *not* running.
3974 gdb_caching_proc gdb_skip_xml_test {
3980 gdb_test_multiple "set tdesc filename ${srcdir}/gdb.xml/trivial.xml" "" {
3981 -re ".*XML support was disabled at compile time.*$gdb_prompt $" {
3984 -re ".*$gdb_prompt $" { }
3990 # Note: the procedure gdb_gnu_strip_debug will produce an executable called
3991 # ${binfile}.dbglnk, which is just like the executable ($binfile) but without
3992 # the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
3993 # the name of a debuginfo only file. This file will be stored in the same
3996 # Functions for separate debug info testing
3998 # starting with an executable:
3999 # foo --> original executable
4001 # at the end of the process we have:
4002 # foo.stripped --> foo w/o debug info
4003 # foo.debug --> foo's debug info
4004 # foo --> like foo, but with a new .gnu_debuglink section pointing to foo.debug.
4006 # Return the build-id hex string (usually 160 bits as 40 hex characters)
4007 # converted to the form: .build-id/ab/cdef1234...89.debug
4008 # Return "" if no build-id found.
4009 proc build_id_debug_filename_get { exec } {
4010 set tmp [standard_output_file "${exec}-tmp"]
4011 set objcopy_program [gdb_find_objcopy]
4013 set result [catch "exec $objcopy_program -j .note.gnu.build-id -O binary $exec $tmp" output]
4014 verbose "result is $result"
4015 verbose "output is $output"
4020 fconfigure $fi -translation binary
4021 # Skip the NOTE header.
4026 if ![string compare $data ""] then {
4029 # Convert it to hex.
4030 binary scan $data H* data
4031 regsub {^..} $data {\0/} data
4032 return ".build-id/${data}.debug"
4035 # Create stripped files for DEST, replacing it. If ARGS is passed, it is a
4036 # list of optional flags. The only currently supported flag is no-main,
4037 # which removes the symbol entry for main from the separate debug file.
4039 # Function returns zero on success. Function will return non-zero failure code
4040 # on some targets not supporting separate debug info (such as i386-msdos).
4042 proc gdb_gnu_strip_debug { dest args } {
4044 # Use the first separate debug info file location searched by GDB so the
4045 # run cannot be broken by some stale file searched with higher precedence.
4046 set debug_file "${dest}.debug"
4048 set strip_to_file_program [transform strip]
4049 set objcopy_program [gdb_find_objcopy]
4051 set debug_link [file tail $debug_file]
4052 set stripped_file "${dest}.stripped"
4054 # Get rid of the debug info, and store result in stripped_file
4055 # something like gdb/testsuite/gdb.base/blah.stripped.
4056 set result [catch "exec $strip_to_file_program --strip-debug ${dest} -o ${stripped_file}" output]
4057 verbose "result is $result"
4058 verbose "output is $output"
4063 # Workaround PR binutils/10802:
4064 # Preserve the 'x' bit also for PIEs (Position Independent Executables).
4065 set perm [file attributes ${dest} -permissions]
4066 file attributes ${stripped_file} -permissions $perm
4068 # Get rid of everything but the debug info, and store result in debug_file
4069 # This will be in the .debug subdirectory, see above.
4070 set result [catch "exec $strip_to_file_program --only-keep-debug ${dest} -o ${debug_file}" output]
4071 verbose "result is $result"
4072 verbose "output is $output"
4077 # If no-main is passed, strip the symbol for main from the separate
4078 # file. This is to simulate the behavior of elfutils's eu-strip, which
4079 # leaves the symtab in the original file only. There's no way to get
4080 # objcopy or strip to remove the symbol table without also removing the
4081 # debugging sections, so this is as close as we can get.
4082 if { [llength $args] == 1 && [lindex $args 0] == "no-main" } {
4083 set result [catch "exec $objcopy_program -N main ${debug_file} ${debug_file}-tmp" output]
4084 verbose "result is $result"
4085 verbose "output is $output"
4089 file delete "${debug_file}"
4090 file rename "${debug_file}-tmp" "${debug_file}"
4093 # Link the two previous output files together, adding the .gnu_debuglink
4094 # section to the stripped_file, containing a pointer to the debug_file,
4095 # save the new file in dest.
4096 # This will be the regular executable filename, in the usual location.
4097 set result [catch "exec $objcopy_program --add-gnu-debuglink=${debug_file} ${stripped_file} ${dest}" output]
4098 verbose "result is $result"
4099 verbose "output is $output"
4104 # Workaround PR binutils/10802:
4105 # Preserve the 'x' bit also for PIEs (Position Independent Executables).
4106 set perm [file attributes ${stripped_file} -permissions]
4107 file attributes ${dest} -permissions $perm
4112 # Test the output of GDB_COMMAND matches the pattern obtained
4113 # by concatenating all elements of EXPECTED_LINES. This makes
4114 # it possible to split otherwise very long string into pieces.
4115 # If third argument is not empty, it's used as the name of the
4116 # test to be printed on pass/fail.
4117 proc help_test_raw { gdb_command expected_lines args } {
4118 set message $gdb_command
4119 if [llength $args]>0 then {
4120 set message [lindex $args 0]
4122 set expected_output [join $expected_lines ""]
4123 gdb_test "${gdb_command}" "${expected_output}" $message
4126 # Test the output of "help COMMAND_CLASS". EXPECTED_INITIAL_LINES
4127 # are regular expressions that should match the beginning of output,
4128 # before the list of commands in that class. The presence of
4129 # command list and standard epilogue will be tested automatically.
4130 proc test_class_help { command_class expected_initial_lines args } {
4132 "List of commands\:.*\[\r\n\]+"
4133 "Type \"help\" followed by command name for full documentation\.\[\r\n\]+"
4134 "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n\]+"
4135 "Command name abbreviations are allowed if unambiguous\."
4137 set l_entire_body [concat $expected_initial_lines $l_stock_body]
4139 eval [list help_test_raw "help ${command_class}" $l_entire_body] $args
4142 # COMMAND_LIST should have either one element -- command to test, or
4143 # two elements -- abbreviated command to test, and full command the first
4144 # element is abbreviation of.
4145 # The command must be a prefix command. EXPECTED_INITIAL_LINES
4146 # are regular expressions that should match the beginning of output,
4147 # before the list of subcommands. The presence of
4148 # subcommand list and standard epilogue will be tested automatically.
4149 proc test_prefix_command_help { command_list expected_initial_lines args } {
4150 set command [lindex $command_list 0]
4151 if {[llength $command_list]>1} {
4152 set full_command [lindex $command_list 1]
4154 set full_command $command
4156 # Use 'list' and not just {} because we want variables to
4157 # be expanded in this list.
4158 set l_stock_body [list\
4159 "List of $full_command subcommands\:.*\[\r\n\]+"\
4160 "Type \"help $full_command\" followed by $full_command subcommand name for full documentation\.\[\r\n\]+"\
4161 "Type \"apropos word\" to search for commands related to \"word\"\.\[\r\n\]+"\
4162 "Command name abbreviations are allowed if unambiguous\."]
4163 set l_entire_body [concat $expected_initial_lines $l_stock_body]
4164 if {[llength $args]>0} {
4165 help_test_raw "help ${command}" $l_entire_body [lindex $args 0]
4167 help_test_raw "help ${command}" $l_entire_body
4171 # Build executable named EXECUTABLE from specifications that allow
4172 # different options to be passed to different sub-compilations.
4173 # TESTNAME is the name of the test; this is passed to 'untested' if
4175 # OPTIONS is passed to the final link, using gdb_compile. If OPTIONS
4176 # contains the option "pthreads", then gdb_compile_pthreads is used.
4177 # ARGS is a flat list of source specifications, of the form:
4178 # { SOURCE1 OPTIONS1 [ SOURCE2 OPTIONS2 ]... }
4179 # Each SOURCE is compiled to an object file using its OPTIONS,
4180 # using gdb_compile.
4181 # Returns 0 on success, -1 on failure.
4182 proc build_executable_from_specs {testname executable options args} {
4186 set binfile [standard_output_file $executable]
4189 if { [lsearch -exact $options "c++"] >= 0 } {
4190 set info_options "c++"
4192 if [get_compiler_info ${info_options}] {
4196 set func gdb_compile
4197 set func_index [lsearch -regexp $options {^(pthreads|shlib|shlib_pthreads)$}]
4198 if {$func_index != -1} {
4199 set func "${func}_[lindex $options $func_index]"
4202 # gdb_compile_shlib and gdb_compile_shlib_pthreads do not use the 3rd
4203 # parameter. They also requires $sources while gdb_compile and
4204 # gdb_compile_pthreads require $objects. Moreover they ignore any options.
4205 if [string match gdb_compile_shlib* $func] {
4207 foreach {s local_options} $args {
4208 lappend sources_path "${srcdir}/${subdir}/${s}"
4210 set ret [$func $sources_path "${binfile}" $options]
4214 foreach {s local_options} $args {
4215 if { [gdb_compile "${srcdir}/${subdir}/${s}" "${binfile}${i}.o" object $local_options] != "" } {
4219 lappend objects "${binfile}${i}.o"
4222 set ret [$func $objects "${binfile}" executable $options]
4232 # Build executable named EXECUTABLE, from SOURCES. If SOURCES are not
4233 # provided, uses $EXECUTABLE.c. The TESTNAME paramer is the name of test
4234 # to pass to untested, if something is wrong. OPTIONS are passed
4235 # to gdb_compile directly.
4236 proc build_executable { testname executable {sources ""} {options {debug}} } {
4237 if {[llength $sources]==0} {
4238 set sources ${executable}.c
4241 set arglist [list $testname $executable $options]
4242 foreach source $sources {
4243 lappend arglist $source $options
4246 return [eval build_executable_from_specs $arglist]
4249 # Starts fresh GDB binary and loads EXECUTABLE into GDB. EXECUTABLE is
4250 # the basename of the binary.
4251 proc clean_restart { executable } {
4254 set binfile [standard_output_file ${executable}]
4258 gdb_reinitialize_dir $srcdir/$subdir
4262 # Prepares for testing by calling build_executable_full, then
4264 # TESTNAME is the name of the test.
4265 # Each element in ARGS is a list of the form
4266 # { EXECUTABLE OPTIONS SOURCE_SPEC... }
4267 # These are passed to build_executable_from_specs, which see.
4268 # The last EXECUTABLE is passed to clean_restart.
4269 # Returns 0 on success, non-zero on failure.
4270 proc prepare_for_testing_full {testname args} {
4271 foreach spec $args {
4272 if {[eval build_executable_from_specs [list $testname] $spec] == -1} {
4275 set executable [lindex $spec 0]
4277 clean_restart $executable
4281 # Prepares for testing, by calling build_executable, and then clean_restart.
4282 # Please refer to build_executable for parameter description.
4283 proc prepare_for_testing { testname executable {sources ""} {options {debug}}} {
4285 if {[build_executable $testname $executable $sources $options] == -1} {
4288 clean_restart $executable
4293 proc get_valueof { fmt exp default } {
4296 set test "get valueof \"${exp}\""
4298 gdb_test_multiple "print${fmt} ${exp}" "$test" {
4299 -re "\\$\[0-9\]* = (.*)\[\r\n\]*$gdb_prompt $" {
4300 set val $expect_out(1,string)
4304 fail "$test (timeout)"
4310 proc get_integer_valueof { exp default } {
4313 set test "get integer valueof \"${exp}\""
4315 gdb_test_multiple "print /d ${exp}" "$test" {
4316 -re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" {
4317 set val $expect_out(1,string)
4321 fail "$test (timeout)"
4327 proc get_hexadecimal_valueof { exp default } {
4329 send_gdb "print /x ${exp}\n"
4330 set test "get hexadecimal valueof \"${exp}\""
4332 -re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
4333 set val $expect_out(1,string)
4338 fail "$test (timeout)"
4344 proc get_sizeof { type default } {
4345 return [get_integer_valueof "sizeof (${type})" $default]
4348 # Get the current value for remotetimeout and return it.
4349 proc get_remotetimeout { } {
4353 gdb_test_multiple "show remotetimeout" "" {
4354 -re "Timeout limit to wait for target to respond is ($decimal).*$gdb_prompt $" {
4355 return $expect_out(1,string)
4359 # Pick the default that gdb uses
4360 warning "Unable to read remotetimeout"
4364 # Set the remotetimeout to the specified timeout. Nothing is returned.
4365 proc set_remotetimeout { timeout } {
4368 gdb_test_multiple "set remotetimeout $timeout" "" {
4369 -re "$gdb_prompt $" {
4370 verbose "Set remotetimeout to $timeout\n"
4375 # Log gdb command line and script if requested.
4376 if {[info exists TRANSCRIPT]} {
4377 rename send_gdb real_send_gdb
4378 rename remote_spawn real_remote_spawn
4379 rename remote_close real_remote_close
4381 global gdb_transcript
4382 set gdb_transcript ""
4384 global gdb_trans_count
4385 set gdb_trans_count 1
4387 proc remote_spawn {args} {
4388 global gdb_transcript gdb_trans_count outdir
4390 if {$gdb_transcript != ""} {
4391 close $gdb_transcript
4393 set gdb_transcript [open [file join $outdir transcript.$gdb_trans_count] w]
4394 puts $gdb_transcript [lindex $args 1]
4395 incr gdb_trans_count
4397 return [uplevel real_remote_spawn $args]
4400 proc remote_close {args} {
4401 global gdb_transcript
4403 if {$gdb_transcript != ""} {
4404 close $gdb_transcript
4405 set gdb_transcript ""
4408 return [uplevel real_remote_close $args]
4411 proc send_gdb {args} {
4412 global gdb_transcript
4414 if {$gdb_transcript != ""} {
4415 puts -nonewline $gdb_transcript [lindex $args 0]
4418 return [uplevel real_send_gdb $args]
4422 # If GDB_PARALLEL exists, then set up the parallel-mode directories.
4423 if {[info exists GDB_PARALLEL]} {
4424 if {[is_remote host]} {
4427 file mkdir outputs temp cache
4431 proc core_find {binfile {deletefiles {}} {arg ""}} {
4432 global objdir subdir
4434 set destcore "$binfile.core"
4435 file delete $destcore
4437 # Create a core file named "$destcore" rather than just "core", to
4438 # avoid problems with sys admin types that like to regularly prune all
4439 # files named "core" from the system.
4441 # Arbitrarily try setting the core size limit to "unlimited" since
4442 # this does not hurt on systems where the command does not work and
4443 # allows us to generate a core on systems where it does.
4445 # Some systems append "core" to the name of the program; others append
4446 # the name of the program to "core"; still others (like Linux, as of
4447 # May 2003) create cores named "core.PID". In the latter case, we
4448 # could have many core files lying around, and it may be difficult to
4449 # tell which one is ours, so let's run the program in a subdirectory.
4451 set coredir [standard_output_file coredir.[getpid]]
4453 catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile} ${arg}; true) >/dev/null 2>&1\""
4454 # remote_exec host "${binfile}"
4455 foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
4456 if [remote_file build exists $i] {
4457 remote_exec build "mv $i $destcore"
4461 # Check for "core.PID".
4462 if { $found == 0 } {
4463 set names [glob -nocomplain -directory $coredir core.*]
4464 if {[llength $names] == 1} {
4465 set corefile [file join $coredir [lindex $names 0]]
4466 remote_exec build "mv $corefile $destcore"
4470 if { $found == 0 } {
4471 # The braindamaged HPUX shell quits after the ulimit -c above
4472 # without executing ${binfile}. So we try again without the
4473 # ulimit here if we didn't find a core file above.
4474 # Oh, I should mention that any "braindamaged" non-Unix system has
4475 # the same problem. I like the cd bit too, it's really neat'n stuff.
4476 catch "system \"(cd ${objdir}/${subdir}; ${binfile}; true) >/dev/null 2>&1\""
4477 foreach i "${objdir}/${subdir}/core ${objdir}/${subdir}/core.coremaker.c ${binfile}.core" {
4478 if [remote_file build exists $i] {
4479 remote_exec build "mv $i $destcore"
4485 # Try to clean up after ourselves.
4486 foreach deletefile $deletefiles {
4487 remote_file build delete [file join $coredir $deletefile]
4489 remote_exec build "rmdir $coredir"
4491 if { $found == 0 } {
4492 warning "can't generate a core file - core tests suppressed - check ulimit -c"
4498 # gdb_target_symbol_prefix_flags returns a string that can be added
4499 # to gdb_compile options to define SYMBOL_PREFIX macro value
4500 # symbol_prefix_flags returns a string that can be added
4501 # for targets that use underscore as symbol prefix.
4502 # TODO: find out automatically if the target needs this.
4504 proc gdb_target_symbol_prefix_flags {} {
4505 if { [istarget "*-*-cygwin*"] || [istarget "i?86-*-mingw*"]
4506 || [istarget "*-*-msdosdjgpp*"] || [istarget "*-*-go32*"] } {
4507 return "additional_flags=-DSYMBOL_PREFIX=\"_\""
4513 # A wrapper for 'remote_exec host' that passes or fails a test.
4514 # Returns 0 if all went well, nonzero on failure.
4515 # TEST is the name of the test, other arguments are as for remote_exec.
4517 proc run_on_host { test program args } {
4518 verbose -log "run_on_host: $program $args"
4519 # remote_exec doesn't work properly if the output is set but the
4520 # input is the empty string -- so replace an empty input with
4522 if {[llength $args] > 1 && [lindex $args 1] == ""} {
4523 set args [lreplace $args 1 1 "/dev/null"]
4525 set result [eval remote_exec host [list $program] $args]
4526 verbose "result is $result"
4527 set status [lindex $result 0]
4528 set output [lindex $result 1]
4538 # Return non-zero if "board_info debug_flags" mentions Fission.
4539 # http://gcc.gnu.org/wiki/DebugFission
4540 # Fission doesn't support everything yet.
4541 # This supports working around bug 15954.
4543 proc using_fission { } {
4544 set debug_flags [board_info [target_info name] debug_flags]
4545 return [regexp -- "-gsplit-dwarf" $debug_flags]
4548 # Always load compatibility stuff.