-# Copyright 1992-2005, 2007-2012 Free Software Foundation, Inc.
+# Copyright 1992-2018 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
}
load_lib libgloss.exp
+load_lib cache.exp
+load_lib gdb-utils.exp
+load_lib memory.exp
global GDB
+# The spawn ID used for I/O interaction with the inferior. For native
+# targets, or remote targets that can do I/O through GDB
+# (semi-hosting) this will be the same as the host/GDB's spawn ID.
+# Otherwise, the board may set this to some other spawn ID. E.g.,
+# when debugging with GDBserver, this is set to GDBserver's spawn ID,
+# so input/output is done on gdbserver's tty.
+global inferior_spawn_id
+
if [info exists TOOL_EXECUTABLE] {
- set GDB $TOOL_EXECUTABLE;
+ set GDB $TOOL_EXECUTABLE
}
if ![info exists GDB] {
if ![is_remote host] {
set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
} else {
- set GDB [transform gdb];
+ set GDB [transform gdb]
}
}
verbose "using GDB = $GDB" 2
}
verbose "using GDBFLAGS = $GDBFLAGS" 2
+# Make the build data directory available to tests.
+set BUILD_DATA_DIRECTORY "[pwd]/../data-directory"
+
# INTERNAL_GDBFLAGS contains flags that the testsuite requires.
global INTERNAL_GDBFLAGS
if ![info exists INTERNAL_GDBFLAGS] {
- set INTERNAL_GDBFLAGS "-nw -nx -data-directory [pwd]/../data-directory"
+ set INTERNAL_GDBFLAGS "-nw -nx -data-directory $BUILD_DATA_DIRECTORY"
}
# The variable gdb_prompt is a regexp which matches the gdb prompt.
-# Set it if it is not already set.
+# Set it if it is not already set. This is also set by default_gdb_init
+# but it's not clear what removing one of them will break.
+# See with_gdb_prompt for more details on prompt handling.
global gdb_prompt
if ![info exists gdb_prompt] then {
- set gdb_prompt "\[(\]gdb\[)\]"
+ set gdb_prompt "\\(gdb\\)"
}
+# A regexp that matches the pagination prompt.
+set pagination_prompt [string_to_regexp "---Type <return> to continue, or q <return> to quit---"]
+
# The variable fullname_syntax_POSIX is a regexp which matches a POSIX
# absolute path ie. /foo/
set fullname_syntax_POSIX {/[^\n]*/}
set inferior_exited_re "(\\\[Inferior \[0-9\]+ \\(.*\\) exited)"
+# A regular expression that matches a value history number.
+# E.g., $1, $2, etc.
+set valnum_re "\\\$$decimal"
+
### Only procedures should come after this point.
#
global GDB
global INTERNAL_GDBFLAGS GDBFLAGS
global gdb_prompt
+ global inotify_pid
+
+ if {[info exists inotify_pid]} {
+ eval exec kill $inotify_pid
+ }
+
set output [remote_exec host "$GDB $INTERNAL_GDBFLAGS --version"]
- set tmp [lindex $output 1];
+ set tmp [lindex $output 1]
set version ""
regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
if ![is_remote host] {
}
proc gdb_version { } {
- return [default_gdb_version];
+ return [default_gdb_version]
}
#
# gdb_unload -- unload a file if one is loaded
+# Return 0 on success, -1 on error.
#
proc gdb_unload {} {
}
-re "$gdb_prompt $" {}
timeout {
- perror "couldn't unload file in $GDB (timed out)."
+ perror "couldn't unload file in $GDB (timeout)."
return -1
}
}
+ return 0
}
# Many of the tests depend on setting breakpoints at various places and
# we need a larger timeout value here or this thing just confuses
# itself. May need a better implementation if possible. - guo
#
- send_gdb "delete breakpoints\n"
- gdb_expect 100 {
- -re "Delete all breakpoints.*y or n.*$" {
- send_gdb "y\n";
+ set timeout 100
+
+ set msg "delete all breakpoints in delete_breakpoints"
+ set deleted 0
+ gdb_test_multiple "delete breakpoints" "$msg" {
+ -re "Delete all breakpoints.*y or n.*$" {
+ send_gdb "y\n"
exp_continue
}
- -re "$gdb_prompt $" { # This happens if there were no breakpoints
- }
- timeout { perror "Delete all breakpoints in delete_breakpoints (timeout)" ; return }
+ -re "$gdb_prompt $" {
+ set deleted 1
+ }
}
- send_gdb "info breakpoints\n"
- gdb_expect 100 {
- -re "No breakpoints or watchpoints..*$gdb_prompt $" {}
- -re "$gdb_prompt $" { perror "breakpoints not deleted" ; return }
- -re "Delete all breakpoints.*or n.*$" {
- send_gdb "y\n";
- exp_continue
+
+ if {$deleted} {
+ # Confirm with "info breakpoints".
+ set deleted 0
+ set msg "info breakpoints"
+ gdb_test_multiple $msg $msg {
+ -re "No breakpoints or watchpoints..*$gdb_prompt $" {
+ set deleted 1
+ }
+ -re "$gdb_prompt $" {
+ }
}
- timeout { perror "info breakpoints (timeout)" ; return }
}
+
+ if {!$deleted} {
+ perror "breakpoints not deleted"
+ }
+}
+
+# Returns true iff the target supports using the "run" command.
+
+proc target_can_use_run_cmd {} {
+ if [target_info exists use_gdb_stub] {
+ # In this case, when we connect, the inferior is already
+ # running.
+ return 0
+ }
+
+ # Assume yes.
+ return 1
}
# Generic run command.
proc gdb_run_cmd {args} {
global gdb_prompt use_gdb_stub
- if [target_info exists gdb_init_command] {
- send_gdb "[target_info gdb_init_command]\n";
+ foreach command [gdb_init_commands] {
+ send_gdb "$command\n"
gdb_expect 30 {
-re "$gdb_prompt $" { }
default {
- perror "gdb_init_command for target failed";
- return;
+ perror "gdb_init_command for target failed"
+ return
}
}
}
if $use_gdb_stub {
if [target_info exists gdb,do_reload_on_run] {
if { [gdb_reload] != 0 } {
- return;
+ return
}
- send_gdb "continue\n";
+ send_gdb "continue\n"
gdb_expect 60 {
-re "Continu\[^\r\n\]*\[\r\n\]" {}
default {}
}
- return;
+ return
}
if [target_info exists gdb,start_symbol] {
- set start [target_info gdb,start_symbol];
+ set start [target_info gdb,start_symbol]
} else {
- set start "start";
+ set start "start"
}
send_gdb "jump *$start\n"
- set start_attempt 1;
+ set start_attempt 1
while { $start_attempt } {
# Cap (re)start attempts at three to ensure that this loop
# always eventually fails. Don't worry about trying to be
# clever and not send a command when it has failed.
if [expr $start_attempt > 3] {
- perror "Jump to start() failed (retry count exceeded)";
- return;
+ perror "Jump to start() failed (retry count exceeded)"
+ return
}
- set start_attempt [expr $start_attempt + 1];
+ set start_attempt [expr $start_attempt + 1]
gdb_expect 30 {
-re "Continuing at \[^\r\n\]*\[\r\n\]" {
- set start_attempt 0;
+ set start_attempt 0
}
-re "No symbol \"_start\" in current.*$gdb_prompt $" {
- perror "Can't find start symbol to run in gdb_run";
- return;
+ perror "Can't find start symbol to run in gdb_run"
+ return
}
-re "No symbol \"start\" in current.*$gdb_prompt $" {
- send_gdb "jump *_start\n";
+ send_gdb "jump *_start\n"
}
-re "No symbol.*context.*$gdb_prompt $" {
- set start_attempt 0;
+ set start_attempt 0
}
-re "Line.* Jump anyway.*y or n. $" {
send_gdb "y\n"
}
-re "The program is not being run.*$gdb_prompt $" {
if { [gdb_reload] != 0 } {
- return;
+ return
}
- send_gdb "jump *$start\n";
+ send_gdb "jump *$start\n"
}
timeout {
- perror "Jump to start() failed (timeout)";
+ perror "Jump to start() failed (timeout)"
return
}
}
if [target_info exists gdb,do_reload_on_run] {
if { [gdb_reload] != 0 } {
- return;
+ return
}
}
send_gdb "run $args\n"
proc gdb_start_cmd {args} {
global gdb_prompt use_gdb_stub
- if [target_info exists gdb_init_command] {
- send_gdb "[target_info gdb_init_command]\n";
+ foreach command [gdb_init_commands] {
+ send_gdb "$command\n"
gdb_expect 30 {
-re "$gdb_prompt $" { }
default {
- perror "gdb_init_command for target failed";
- return -1;
+ perror "gdb_init_command for target failed"
+ return -1
}
}
}
return -1
}
+# Generic starti command. Return 0 if we could start the program, -1
+# if we could not.
+#
+# N.B. This function does not wait for gdb to return to the prompt,
+# that is the caller's responsibility.
+
+proc gdb_starti_cmd {args} {
+ global gdb_prompt use_gdb_stub
+
+ foreach command [gdb_init_commands] {
+ send_gdb "$command\n"
+ gdb_expect 30 {
+ -re "$gdb_prompt $" { }
+ default {
+ perror "gdb_init_command for target failed"
+ return -1
+ }
+ }
+ }
+
+ if $use_gdb_stub {
+ return -1
+ }
+
+ send_gdb "starti $args\n"
+ gdb_expect 60 {
+ -re "The program .* has been started already.*y or n. $" {
+ send_gdb "y\n"
+ exp_continue
+ }
+ -re "Starting program: \[^\r\n\]*" {
+ return 0
+ }
+ }
+ return -1
+}
+
# Set a breakpoint at FUNCTION. If there is an additional argument it is
# a list of options; the supported options are allow-pending, temporary,
-# and no-message.
+# message, no-message, passfail and qualified.
+# The result is 1 for success, 0 for failure.
+#
+# Note: The handling of message vs no-message is messed up, but it's based
+# on historical usage. By default this function does not print passes,
+# only fails.
+# no-message: turns off printing of fails (and passes, but they're already off)
+# message: turns on printing of passes (and fails, but they're already on)
proc gdb_breakpoint { function args } {
global gdb_prompt
global decimal
set pending_response n
- if {[lsearch -exact [lindex $args 0] allow-pending] != -1} {
+ if {[lsearch -exact $args allow-pending] != -1} {
set pending_response y
}
set break_command "break"
set break_message "Breakpoint"
- if {[lsearch -exact [lindex $args 0] temporary] != -1} {
+ if {[lsearch -exact $args temporary] != -1} {
set break_command "tbreak"
set break_message "Temporary breakpoint"
}
- set no_message 0
- if {[lsearch -exact [lindex $args 0] no-message] != -1} {
- set no_message 1
+ if {[lsearch -exact $args qualified] != -1} {
+ append break_command " -qualified"
+ }
+
+ set print_pass 0
+ set print_fail 1
+ set no_message_loc [lsearch -exact $args no-message]
+ set message_loc [lsearch -exact $args message]
+ # The last one to appear in args wins.
+ if { $no_message_loc > $message_loc } {
+ set print_fail 0
+ } elseif { $message_loc > $no_message_loc } {
+ set print_pass 1
}
+ set test_name "setting breakpoint at $function"
+
send_gdb "$break_command $function\n"
# The first two regexps are what we get with -g, the third is without -g.
gdb_expect 30 {
-re "$break_message \[0-9\]* at .*$gdb_prompt $" {}
-re "$break_message \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" {
if {$pending_response == "n"} {
- if { $no_message == 0 } {
- fail "setting breakpoint at $function"
+ if { $print_fail } {
+ fail $test_name
}
return 0
}
exp_continue
}
-re "A problem internal to GDB has been detected" {
- fail "setting breakpoint at $function in runto (GDB internal error)"
+ if { $print_fail } {
+ fail "$test_name (GDB internal error)"
+ }
gdb_internal_error_resync
return 0
}
-re "$gdb_prompt $" {
- if { $no_message == 0 } {
- fail "setting breakpoint at $function"
+ if { $print_fail } {
+ fail $test_name
+ }
+ return 0
+ }
+ eof {
+ if { $print_fail } {
+ fail "$test_name (eof)"
}
return 0
}
timeout {
- if { $no_message == 0 } {
- fail "setting breakpoint at $function (timeout)"
+ if { $print_fail } {
+ fail "$test_name (timeout)"
}
return 0
}
}
- return 1;
+ if { $print_pass } {
+ pass $test_name
+ }
+ return 1
}
# Set breakpoint at function and run gdb until it breaks there.
# Since this is the only breakpoint that will be set, if it stops
# at a breakpoint, we will assume it is the one we want. We can't
# just compare to "function" because it might be a fully qualified,
-# single quoted C++ function specifier. If there's an additional argument,
-# pass it to gdb_breakpoint.
+# single quoted C++ function specifier.
+#
+# If there are additional arguments, pass them to gdb_breakpoint.
+# We recognize no-message/message ourselves.
+# The default is no-message.
+# no-message is messed up here, like gdb_breakpoint: to preserve
+# historical usage fails are always printed by default.
+# no-message: turns off printing of fails (and passes, but they're already off)
+# message: turns on printing of passes (and fails, but they're already on)
proc runto { function args } {
global gdb_prompt
delete_breakpoints
- if ![gdb_breakpoint $function [lindex $args 0]] {
- return 0;
+ # Default to "no-message".
+ set args "no-message $args"
+
+ set print_pass 0
+ set print_fail 1
+ set no_message_loc [lsearch -exact $args no-message]
+ set message_loc [lsearch -exact $args message]
+ # The last one to appear in args wins.
+ if { $no_message_loc > $message_loc } {
+ set print_fail 0
+ } elseif { $message_loc > $no_message_loc } {
+ set print_pass 1
+ }
+
+ set test_name "running to $function in runto"
+
+ # We need to use eval here to pass our varargs args to gdb_breakpoint
+ # which is also a varargs function.
+ # But we also have to be careful because $function may have multiple
+ # elements, and we don't want Tcl to move the remaining elements after
+ # the first to $args. That is why $function is wrapped in {}.
+ if ![eval gdb_breakpoint {$function} $args] {
+ return 0
}
gdb_run_cmd
# the "in func" output we get without -g.
gdb_expect 30 {
-re "Break.* at .*:$decimal.*$gdb_prompt $" {
+ if { $print_pass } {
+ pass $test_name
+ }
return 1
}
-re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" {
+ if { $print_pass } {
+ pass $test_name
+ }
return 1
}
-re "The target does not support running in non-stop mode.\r\n$gdb_prompt $" {
- unsupported "Non-stop mode not supported"
+ if { $print_fail } {
+ unsupported "non-stop mode not supported"
+ }
return 0
}
-re ".*A problem internal to GDB has been detected" {
- fail "running to $function in runto (GDB internal error)"
+ if { $print_fail } {
+ fail "$test_name (GDB internal error)"
+ }
gdb_internal_error_resync
return 0
}
-re "$gdb_prompt $" {
- fail "running to $function in runto"
+ if { $print_fail } {
+ fail $test_name
+ }
return 0
}
eof {
- fail "running to $function in runto (end of file)"
+ if { $print_fail } {
+ fail "$test_name (eof)"
+ }
return 0
}
timeout {
- fail "running to $function in runto (timeout)"
+ if { $print_fail } {
+ fail "$test_name (timeout)"
+ }
return 0
}
}
+ if { $print_pass } {
+ pass $test_name
+ }
return 1
}
# If you don't want that, use gdb_start_cmd.
proc runto_main { } {
- return [runto main]
+ return [runto main no-message]
}
### Continue, and expect to hit a breakpoint.
global gdb_prompt
set full_name "continue to breakpoint: $name"
- send_gdb "continue\n"
- gdb_expect {
- -re "Breakpoint .* (at|in) $location_pattern\r\n$gdb_prompt $" {
+ gdb_test_multiple "continue" $full_name {
+ -re "(?:Breakpoint|Temporary breakpoint) .* (at|in) $location_pattern\r\n$gdb_prompt $" {
pass $full_name
}
- -re ".*$gdb_prompt $" {
- fail $full_name
- }
- timeout {
- fail "$full_name (timeout)"
- }
}
}
proc gdb_internal_error_resync {} {
global gdb_prompt
+ verbose -log "Resyncing due to internal error."
+
set count 0
while {$count < 10} {
gdb_expect {
# }
# }
#
+# Like with "expect", you can also specify the spawn id to match with
+# -i "$id". Interesting spawn ids are $inferior_spawn_id and
+# $gdb_spawn_id. The former matches inferior I/O, while the latter
+# matches GDB I/O. E.g.:
+#
+# send_inferior "hello\n"
+# gdb_test_multiple "continue" "test echo" {
+# -i "$inferior_spawn_id" -re "^hello\r\nhello\r\n$" {
+# pass "got echo"
+# }
+# -i "$gdb_spawn_id" -re "Breakpoint.*$gdb_prompt $" {
+# fail "hit breakpoint"
+# }
+# }
+#
# The standard patterns, such as "Inferior exited..." and "A problem
-# ...", all being implicitly appended to that list.
+# ...", all being implicitly appended to that list. These are always
+# expected from $gdb_spawn_id. IOW, callers do not need to worry
+# about resetting "-i" back to $gdb_spawn_id explicitly.
#
proc gdb_test_multiple { command message user_code } {
global verbose use_gdb_stub
- global gdb_prompt
+ global gdb_prompt pagination_prompt
global GDB
+ global gdb_spawn_id
global inferior_exited_re
upvar timeout timeout
upvar expect_out expect_out
+ global any_spawn_id
if { $message == "" } {
set message $command
}
if {$use_gdb_stub
- && [regexp -nocase {^\s*(r|run|star|start|at|att|atta|attac|attach)\M} \
+ && [regexp -nocase {^\s*(r|run|star|start|at|att|atta|attac|attach)\M} \
$command]} {
error "gdbserver does not support $command without extended-remote"
}
lappend processed_code $item
continue
}
- if { $item == "-timeout" } {
+ if { $item == "-timeout" || $item == "-i" } {
set expecting_arg 1
lappend processed_code $item
continue
}
if { $expecting_arg } {
set expecting_arg 0
- lappend processed_code $item
+ lappend processed_code $subst_item
continue
}
if { $expecting_action } {
}
set result -1
- set string "${command}\n";
+ set string "${command}\n"
if { $command != "" } {
set multi_line_re "\[\r\n\] *>"
while { "$string" != "" } {
- set foo [string first "\n" "$string"];
- set len [string length "$string"];
+ set foo [string first "\n" "$string"]
+ set len [string length "$string"]
if { $foo < [expr $len - 1] } {
- set str [string range "$string" 0 $foo];
+ set str [string range "$string" 0 $foo]
if { [send_gdb "$str"] != "" } {
- global suppress_flag;
+ global suppress_flag
if { ! $suppress_flag } {
- perror "Couldn't send $command to GDB.";
+ perror "Couldn't send $command to GDB."
}
- fail "$message";
- return $result;
+ fail "$message"
+ return $result
}
# since we're checking if each line of the multi-line
# command are 'accepted' by GDB here,
-notransfer -re "$multi_line_re$" { verbose "partial: match" 3 }
timeout { verbose "partial: timeout" 3 }
}
- set string [string range "$string" [expr $foo + 1] end];
+ set string [string range "$string" [expr $foo + 1] end]
set multi_line_re "$multi_line_re.*\[\r\n\] *>"
} else {
- break;
+ break
}
}
if { "$string" != "" } {
if { [send_gdb "$string"] != "" } {
- global suppress_flag;
+ global suppress_flag
if { ! $suppress_flag } {
- perror "Couldn't send $command to GDB.";
+ perror "Couldn't send $command to GDB."
}
- fail "$message";
- return $result;
+ fail "$message"
+ return $result
}
}
}
- if [target_info exists gdb,timeout] {
- set tmt [target_info gdb,timeout];
- } else {
- if [info exists timeout] {
- set tmt $timeout;
- } else {
- global timeout;
- if [info exists timeout] {
- set tmt $timeout;
- } else {
- set tmt 60;
+ set code {
+ -re ".*A problem internal to GDB has been detected" {
+ fail "$message (GDB internal error)"
+ gdb_internal_error_resync
+ set result -1
+ }
+ -re "\\*\\*\\* DOSEXIT code.*" {
+ if { $message != "" } {
+ fail "$message"
}
+ gdb_suppress_entire_file "GDB died"
+ set result -1
}
}
-
- set code {
- -re ".*A problem internal to GDB has been detected" {
- fail "$message (GDB internal error)"
- gdb_internal_error_resync
- }
- -re "\\*\\*\\* DOSEXIT code.*" {
- if { $message != "" } {
- fail "$message";
- }
- gdb_suppress_entire_file "GDB died";
- set result -1;
- }
- }
append code $processed_code
append code {
- -re "Ending remote debugging.*$gdb_prompt $" {
+ # Reset the spawn id, in case the processed code used -i.
+ -i "$gdb_spawn_id"
+
+ -re "Ending remote debugging.*$gdb_prompt $" {
if ![isnative] then {
warning "Can`t communicate to remote target."
}
gdb_start
set result -1
}
- -re "Undefined\[a-z\]* command:.*$gdb_prompt $" {
+ -re "Undefined\[a-z\]* command:.*$gdb_prompt $" {
perror "Undefined command \"$command\"."
- fail "$message"
+ fail "$message"
set result 1
}
- -re "Ambiguous command.*$gdb_prompt $" {
+ -re "Ambiguous command.*$gdb_prompt $" {
perror "\"$command\" is not a unique command name."
- fail "$message"
+ fail "$message"
set result 1
}
- -re "$inferior_exited_re with code \[0-9\]+.*$gdb_prompt $" {
+ -re "$inferior_exited_re with code \[0-9\]+.*$gdb_prompt $" {
if ![string match "" $message] then {
set errmsg "$message (the program exited)"
} else {
fail "$errmsg"
set result -1
}
- -re "$inferior_exited_re normally.*$gdb_prompt $" {
+ -re "$inferior_exited_re normally.*$gdb_prompt $" {
if ![string match "" $message] then {
set errmsg "$message (the program exited)"
} else {
fail "$errmsg"
set result -1
}
- -re "The program is not being run.*$gdb_prompt $" {
+ -re "The program is not being run.*$gdb_prompt $" {
if ![string match "" $message] then {
set errmsg "$message (the program is no longer running)"
} else {
fail "$errmsg"
set result -1
}
- -re "\r\n$gdb_prompt $" {
+ -re "\r\n$gdb_prompt $" {
if ![string match "" $message] then {
fail "$message"
}
set result 1
}
- "<return>" {
+ -re "$pagination_prompt" {
send_gdb "\n"
perror "Window too small."
- fail "$message"
+ fail "$message"
set result -1
}
-re "\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " {
fail "$message (got breakpoint menu)"
set result -1
}
- eof {
- perror "Process no longer exists"
- if { $message != "" } {
- fail "$message"
- }
- return -1
+
+ # Patterns below apply to any spawn id specified.
+ -i $any_spawn_id
+ eof {
+ perror "Process no longer exists"
+ if { $message != "" } {
+ fail "$message"
+ }
+ return -1
}
- full_buffer {
+ full_buffer {
perror "internal buffer is full."
- fail "$message"
+ fail "$message"
set result -1
}
timeout {
}
set result 0
- set code [catch {gdb_expect $tmt $code} string]
+ set code [catch {gdb_expect $code} string]
if {$code == 1} {
- global errorInfo errorCode;
+ global errorInfo errorCode
return -code error -errorinfo $errorInfo -errorcode $errorCode $string
} elseif {$code > 1} {
return -code $code $string
# COMMAND is the command to execute, send to GDB with send_gdb. If
# this is the null string no command is sent.
# PATTERN is the pattern to match for a PASS, and must NOT include
-# the \r\n sequence immediately before the gdb prompt.
+# the \r\n sequence immediately before the gdb prompt. This argument
+# may be omitted to just match the prompt, ignoring whatever output
+# precedes it.
# MESSAGE is an optional message to be printed. If this is
# omitted, then the pass/fail messages use the command string as the
# message. (If this is the empty string, then sometimes we don't
# -1 if there was an internal error.
#
proc gdb_test { args } {
- global verbose
global gdb_prompt
- global GDB
upvar timeout timeout
if [llength $args]>2 then {
set pattern [lindex $args 1]
if [llength $args]==5 {
- set question_string [lindex $args 3];
- set response_string [lindex $args 4];
+ set question_string [lindex $args 3]
+ set response_string [lindex $args 4]
} else {
set question_string "^FOOBAR$"
}
return [gdb_test_multiple $command $message {
- -re "\[\r\n\]*($pattern)\[\r\n\]+$gdb_prompt $" {
+ -re "\[\r\n\]*(?:$pattern)\[\r\n\]+$gdb_prompt $" {
if ![string match "" $message] then {
pass "$message"
}
}
-re "(${question_string})$" {
- send_gdb "$response_string\n";
- exp_continue;
+ send_gdb "$response_string\n"
+ exp_continue
}
}]
}
# This is useful when the sequence is long and contains ".*", a single
# regexp to match the entire output can get a timeout much easier.
#
-# COMMAND is the command to send.
+# COMMAND is the command to execute, send to GDB with send_gdb. If
+# this is the null string no command is sent.
# TEST_NAME is passed to pass/fail. COMMAND is used if TEST_NAME is "".
# EXPECTED_OUTPUT_LIST is a list of regexps of expected output, which are
# processed in order, and all must be present in the output.
set test_name $command
}
lappend expected_output_list ""; # implicit ".*" before gdb prompt
- send_gdb "$command\n"
+ if { $command != "" } {
+ send_gdb "$command\n"
+ }
return [gdb_expect_list $test_name "$gdb_prompt $" $expected_output_list]
}
}
}
\f
-# Given an input string, adds backslashes as needed to create a
-# regexp that will match the string.
-
-proc string_to_regexp {str} {
- set result $str
- regsub -all {[]*+.|()^$\[\\]} $str {\\&} result
- return $result
-}
# Same as gdb_test, but the second parameter is not a regexp,
# but a string that must match exactly.
}
}
}
+
+# gdb_test_stdio COMMAND INFERIOR_PATTERN GDB_PATTERN MESSAGE
+# Send a command to gdb; expect inferior and gdb output.
+#
+# See gdb_test_multiple for a description of the COMMAND and MESSAGE
+# parameters.
+#
+# INFERIOR_PATTERN is the pattern to match against inferior output.
+#
+# GDB_PATTERN is the pattern to match against gdb output, and must NOT
+# include the \r\n sequence immediately before the gdb prompt, nor the
+# prompt. The default is empty.
+#
+# Both inferior and gdb patterns must match for a PASS.
+#
+# If MESSAGE is ommitted, then COMMAND will be used as the message.
+#
+# Returns:
+# 1 if the test failed,
+# 0 if the test passes,
+# -1 if there was an internal error.
+#
+
+proc gdb_test_stdio {command inferior_pattern {gdb_pattern ""} {message ""}} {
+ global inferior_spawn_id gdb_spawn_id
+ global gdb_prompt
+
+ if {$message == ""} {
+ set message $command
+ }
+
+ set inferior_matched 0
+ set gdb_matched 0
+
+ # Use an indirect spawn id list, and remove the inferior spawn id
+ # from the expected output as soon as it matches, in case
+ # $inferior_pattern happens to be a prefix of the resulting full
+ # gdb pattern below (e.g., "\r\n").
+ global gdb_test_stdio_spawn_id_list
+ set gdb_test_stdio_spawn_id_list "$inferior_spawn_id"
+
+ # Note that if $inferior_spawn_id and $gdb_spawn_id are different,
+ # then we may see gdb's output arriving before the inferior's
+ # output.
+ set res [gdb_test_multiple $command $message {
+ -i gdb_test_stdio_spawn_id_list -re "$inferior_pattern" {
+ set inferior_matched 1
+ if {!$gdb_matched} {
+ set gdb_test_stdio_spawn_id_list ""
+ exp_continue
+ }
+ }
+ -i $gdb_spawn_id -re "$gdb_pattern\r\n$gdb_prompt $" {
+ set gdb_matched 1
+ if {!$inferior_matched} {
+ exp_continue
+ }
+ }
+ }]
+ if {$res == 0} {
+ pass $message
+ } else {
+ verbose -log "inferior_matched=$inferior_matched, gdb_matched=$gdb_matched"
+ }
+ return $res
+}
+
\f
+
+# Issue a PASS and return true if evaluating CONDITION in the caller's
+# frame returns true, and issue a FAIL and return false otherwise.
+# MESSAGE is the pass/fail message to be printed. If MESSAGE is
+# omitted or is empty, then the pass/fail messages use the condition
+# string as the message.
+
+proc gdb_assert { condition {message ""} } {
+ if { $message == ""} {
+ set message $condition
+ }
+
+ set res [uplevel 1 expr $condition]
+ if {!$res} {
+ fail $message
+ } else {
+ pass $message
+ }
+ return $res
+}
+
proc gdb_reinitialize_dir { subdir } {
global gdb_prompt
if [is_remote host] {
- return "";
+ return ""
}
send_gdb "dir\n"
gdb_expect 60 {
global GDB
global INTERNAL_GDBFLAGS GDBFLAGS
global verbose
- global gdb_spawn_id;
+ global gdb_spawn_id inferior_spawn_id
+ global inotify_log_file
- gdb_stop_suppressing_tests;
+ gdb_stop_suppressing_tests
if ![info exists gdb_spawn_id] {
- return;
+ return
}
verbose "Quitting $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
+ if {[info exists inotify_log_file] && [file exists $inotify_log_file]} {
+ set fd [open $inotify_log_file]
+ set data [read -nonewline $fd]
+ close $fd
+
+ if {[string compare $data ""] != 0} {
+ warning "parallel-unsafe file creations noticed"
+
+ # Clear the log.
+ set fd [open $inotify_log_file w]
+ close $fd
+ }
+ }
+
if { [is_remote host] && [board_info host exists fileid] } {
- send_gdb "quit\n";
+ send_gdb "quit\n"
gdb_expect 10 {
-re "y or n" {
- send_gdb "y\n";
- exp_continue;
+ send_gdb "y\n"
+ exp_continue
}
-re "DOSEXIT code" { }
default { }
}
if ![is_remote host] {
- remote_close host;
+ remote_close host
}
unset gdb_spawn_id
+ unset inferior_spawn_id
}
# Load a file into the debugger.
#
# debug file was loaded successfully and has debug information
# nodebug file was loaded successfully and has no debug information
+# lzma file was loaded, .gnu_debugdata found, but no LZMA support
+# compiled in
# fail file was not loaded
#
# I tried returning this information as part of the return value,
global GDB
global last_loaded_file
+ # Save this for the benefit of gdbserver-support.exp.
set last_loaded_file $arg
# Set whether debug info was found.
send_gdb "file $arg\n"
gdb_expect 120 {
+ -re "Reading symbols from.*LZMA support was disabled.*done.*$gdb_prompt $" {
+ verbose "\t\tLoaded $arg into $GDB; .gnu_debugdata found but no LZMA available"
+ set gdb_file_cmd_debug_info "lzma"
+ return 0
+ }
-re "Reading symbols from.*no debugging symbols found.*done.*$gdb_prompt $" {
- verbose "\t\tLoaded $arg into the $GDB with no debugging symbols"
+ verbose "\t\tLoaded $arg into $GDB with no debugging symbols"
set gdb_file_cmd_debug_info "nodebug"
return 0
}
-re "Reading symbols from.*done.*$gdb_prompt $" {
- verbose "\t\tLoaded $arg into the $GDB"
+ verbose "\t\tLoaded $arg into $GDB"
set gdb_file_cmd_debug_info "debug"
return 0
}
return 0
}
timeout {
- perror "(timeout) Couldn't load $arg, other program already loaded."
+ perror "Couldn't load $arg, other program already loaded (timeout)."
return -1
}
+ eof {
+ perror "Couldn't load $arg, other program already loaded (eof)."
+ return -1
+ }
}
}
-re "No such file or directory.*$gdb_prompt $" {
perror "($arg) No such file or directory"
return -1
}
+ -re "A problem internal to GDB has been detected" {
+ fail "($arg) (GDB internal error)"
+ gdb_internal_error_resync
+ return -1
+ }
-re "$gdb_prompt $" {
- perror "couldn't load $arg into $GDB."
+ perror "Couldn't load $arg into $GDB."
return -1
}
timeout {
- perror "couldn't load $arg into $GDB (timed out)."
+ perror "Couldn't load $arg into $GDB (timeout)."
return -1
}
eof {
# This is an attempt to detect a core dump, but seems not to
# work. Perhaps we need to match .* followed by eof, in which
# gdb_expect does not seem to have a way to do that.
- perror "couldn't load $arg into $GDB (end of file)."
+ perror "Couldn't load $arg into $GDB (eof)."
return -1
}
}
}
-#
-# start gdb -- start gdb running, default procedure
-#
-# When running over NFS, particularly if running many simultaneous
-# tests on different hosts all using the same server, things can
-# get really slow. Give gdb at least 3 minutes to start up.
-#
-proc default_gdb_start { } {
- global verbose use_gdb_stub
+# Default gdb_spawn procedure.
+
+proc default_gdb_spawn { } {
+ global use_gdb_stub
global GDB
global INTERNAL_GDBFLAGS GDBFLAGS
- global gdb_prompt
- global timeout
- global gdb_spawn_id;
+ global gdb_spawn_id
- gdb_stop_suppressing_tests;
+ gdb_stop_suppressing_tests
# Set the default value, it may be overriden later by specific testfile.
#
verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
if [info exists gdb_spawn_id] {
- return 0;
+ return 0
}
if ![is_remote host] {
exit 1
}
}
- set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"];
+ set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]
if { $res < 0 || $res == "" } {
perror "Spawning $GDB failed."
- return 1;
+ return 1
}
- gdb_expect 360 {
- -re "\[\r\n\]$gdb_prompt $" {
- verbose "GDB initialized."
- }
- -re "$gdb_prompt $" {
- perror "GDB never initialized."
- return -1
- }
- timeout {
- perror "(timeout) GDB never initialized after 10 seconds."
- remote_close host;
- return -1
+
+ set gdb_spawn_id $res
+ return 0
+}
+
+# Default gdb_start procedure.
+
+proc default_gdb_start { } {
+ global gdb_prompt pagination_prompt
+ global gdb_spawn_id
+ global inferior_spawn_id
+
+ if [info exists gdb_spawn_id] {
+ return 0
+ }
+
+ set res [gdb_spawn]
+ if { $res != 0} {
+ return $res
+ }
+
+ # Default to assuming inferior I/O is done on GDB's terminal.
+ if {![info exists inferior_spawn_id]} {
+ set inferior_spawn_id $gdb_spawn_id
+ }
+
+ # When running over NFS, particularly if running many simultaneous
+ # tests on different hosts all using the same server, things can
+ # get really slow. Give gdb at least 3 minutes to start up.
+ set loop_again 1
+ while { $loop_again } {
+ set loop_again 0
+ gdb_expect 360 {
+ -re "$pagination_prompt" {
+ verbose "Hit pagination during startup. Pressing enter to continue."
+ send_gdb "\n"
+ set loop_again 1
+ }
+ -re "\[\r\n\]$gdb_prompt $" {
+ verbose "GDB initialized."
+ }
+ -re "$gdb_prompt $" {
+ perror "GDB never initialized."
+ unset gdb_spawn_id
+ return -1
+ }
+ timeout {
+ perror "(timeout) GDB never initialized after 10 seconds."
+ remote_close host
+ unset gdb_spawn_id
+ return -1
+ }
}
}
- set gdb_spawn_id -1;
+
# force the height to "unlimited", so no pagers get used
send_gdb "set height 0\n"
warning "Couldn't set the width to 0."
}
}
- return 0;
+ return 0
+}
+
+# Utility procedure to give user control of the gdb prompt in a script. It is
+# meant to be used for debugging test cases, and should not be left in the
+# test cases code.
+
+proc gdb_interact { } {
+ global gdb_spawn_id
+ set spawn_id $gdb_spawn_id
+
+ send_user "+------------------------------------------+\n"
+ send_user "| Script interrupted, you can now interact |\n"
+ send_user "| with by gdb. Type >>> to continue. |\n"
+ send_user "+------------------------------------------+\n"
+
+ interact {
+ ">>>" return
+ }
}
# Examine the output of compilation to determine whether compilation
return 0
}
-# Return a 1 if I don't even want to try to test java.
+# Return a 1 if I don't even want to try to test GO.
+
+proc skip_go_tests {} {
+ return 0
+}
+
+# Return a 1 if I don't even want to try to test D.
-proc skip_java_tests {} {
+proc skip_d_tests {} {
return 0
}
+# Return 1 to skip Rust tests, 0 to try them.
+proc skip_rust_tests {} {
+ return [expr {![isnative]}]
+}
+
# Return a 1 for configurations that do not support Python scripting.
+# PROMPT_REGEXP is the expected prompt.
-proc skip_python_tests {} {
- global gdb_prompt
- gdb_test_multiple "python print 'test'" "verify python support" {
- -re "not supported.*$gdb_prompt $" {
+proc skip_python_tests_prompt { prompt_regexp } {
+ global gdb_py_is_py3k
+ global gdb_py_is_py24
+
+ gdb_test_multiple "python print ('test')" "verify python support" {
+ -re "not supported.*$prompt_regexp" {
unsupported "Python support is disabled."
return 1
}
- -re "$gdb_prompt $" {}
+ -re "$prompt_regexp" {}
+ }
+
+ set gdb_py_is_py24 0
+ gdb_test_multiple "python print (sys.version_info\[0\])" "check if python 3" {
+ -re "3.*$prompt_regexp" {
+ set gdb_py_is_py3k 1
+ }
+ -re ".*$prompt_regexp" {
+ set gdb_py_is_py3k 0
+ }
+ }
+ if { $gdb_py_is_py3k == 0 } {
+ gdb_test_multiple "python print (sys.version_info\[1\])" "check if python 2.4" {
+ -re "\[45\].*$prompt_regexp" {
+ set gdb_py_is_py24 1
+ }
+ -re ".*$prompt_regexp" {
+ set gdb_py_is_py24 0
+ }
+ }
}
return 0
}
+# Return a 1 for configurations that do not support Python scripting.
+# Note: This also sets various globals that specify which version of Python
+# is in use. See skip_python_tests_prompt.
+
+proc skip_python_tests {} {
+ global gdb_prompt
+ return [skip_python_tests_prompt "$gdb_prompt $"]
+}
+
# Return a 1 if we should skip shared library tests.
proc skip_shlib_tests {} {
return 1
}
+# Return 1 if we should skip tui related tests.
+
+proc skip_tui_tests {} {
+ global gdb_prompt
+
+ gdb_test_multiple "help layout" "verify tui support" {
+ -re "Undefined command: \"layout\".*$gdb_prompt $" {
+ return 1
+ }
+ -re "$gdb_prompt $" {
+ }
+ }
+
+ return 0
+}
+
# Test files shall make sure all the test result lines in gdb.sum are
# unique in a test run, so that comparing the gdb.sum files of two
# test runs gives correct results. Test files that exercise
}
}
+# Wrapper for foreach that calls with_test_prefix on each iteration,
+# including the iterator's name and current value in the prefix.
+
+proc foreach_with_prefix {var list body} {
+ upvar 1 $var myvar
+ foreach myvar $list {
+ with_test_prefix "$var=$myvar" {
+ uplevel 1 $body
+ }
+ }
+}
+
+# Like TCL's native proc, but defines a procedure that wraps its body
+# within 'with_test_prefix "$proc_name" { ... }'.
+proc proc_with_prefix {name arguments body} {
+ # Define the advertised proc.
+ proc $name $arguments [list with_test_prefix $name $body]
+}
+
+
+# Run BODY in the context of the caller. After BODY is run, the variables
+# listed in VARS will be reset to the values they had before BODY was run.
+#
+# This is useful for providing a scope in which it is safe to temporarily
+# modify global variables, e.g.
+#
+# global INTERNAL_GDBFLAGS
+# global env
+#
+# set foo GDBHISTSIZE
+#
+# save_vars { INTERNAL_GDBFLAGS env($foo) env(HOME) } {
+# append INTERNAL_GDBFLAGS " -nx"
+# unset -nocomplain env(GDBHISTSIZE)
+# gdb_start
+# gdb_test ...
+# }
+#
+# Here, although INTERNAL_GDBFLAGS, env(GDBHISTSIZE) and env(HOME) may be
+# modified inside BODY, this proc guarantees that the modifications will be
+# undone after BODY finishes executing.
+
+proc save_vars { vars body } {
+ array set saved_scalars { }
+ array set saved_arrays { }
+ set unset_vars { }
+
+ foreach var $vars {
+ # First evaluate VAR in the context of the caller in case the variable
+ # name may be a not-yet-interpolated string like env($foo)
+ set var [uplevel 1 list $var]
+
+ if [uplevel 1 [list info exists $var]] {
+ if [uplevel 1 [list array exists $var]] {
+ set saved_arrays($var) [uplevel 1 [list array get $var]]
+ } else {
+ set saved_scalars($var) [uplevel 1 [list set $var]]
+ }
+ } else {
+ lappend unset_vars $var
+ }
+ }
+
+ set code [catch {uplevel 1 $body} result]
+
+ foreach {var value} [array get saved_scalars] {
+ uplevel 1 [list set $var $value]
+ }
+
+ foreach {var value} [array get saved_arrays] {
+ uplevel 1 [list unset $var]
+ uplevel 1 [list array set $var $value]
+ }
+
+ foreach var $unset_vars {
+ uplevel 1 [list unset -nocomplain $var]
+ }
+
+ if {$code == 1} {
+ global errorInfo errorCode
+ return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
+ } else {
+ return -code $code $result
+ }
+}
+
+
+# Run tests in BODY with GDB prompt and variable $gdb_prompt set to
+# PROMPT. When BODY is finished, restore GDB prompt and variable
+# $gdb_prompt.
+# Returns the result of BODY.
+#
+# Notes:
+#
+# 1) If you want to use, for example, "(foo)" as the prompt you must pass it
+# as "(foo)", and not the regexp form "\(foo\)" (expressed as "\\(foo\\)" in
+# TCL). PROMPT is internally converted to a suitable regexp for matching.
+# We do the conversion from "(foo)" to "\(foo\)" here for a few reasons:
+# a) It's more intuitive for callers to pass the plain text form.
+# b) We need two forms of the prompt:
+# - a regexp to use in output matching,
+# - a value to pass to the "set prompt" command.
+# c) It's easier to convert the plain text form to its regexp form.
+#
+# 2) Don't add a trailing space, we do that here.
+
+proc with_gdb_prompt { prompt body } {
+ global gdb_prompt
+
+ # Convert "(foo)" to "\(foo\)".
+ # We don't use string_to_regexp because while it works today it's not
+ # clear it will work tomorrow: the value we need must work as both a
+ # regexp *and* as the argument to the "set prompt" command, at least until
+ # we start recording both forms separately instead of just $gdb_prompt.
+ # The testsuite is pretty-much hardwired to interpret $gdb_prompt as the
+ # regexp form.
+ regsub -all {[]*+.|()^$\[\\]} $prompt {\\&} prompt
+
+ set saved $gdb_prompt
+
+ verbose -log "Setting gdb prompt to \"$prompt \"."
+ set gdb_prompt $prompt
+ gdb_test_no_output "set prompt $prompt " ""
+
+ set code [catch {uplevel 1 $body} result]
+
+ verbose -log "Restoring gdb prompt to \"$saved \"."
+ set gdb_prompt $saved
+ gdb_test_no_output "set prompt $saved " ""
+
+ if {$code == 1} {
+ global errorInfo errorCode
+ return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
+ } else {
+ return -code $code $result
+ }
+}
+
+# Run tests in BODY with target-charset setting to TARGET_CHARSET. When
+# BODY is finished, restore target-charset.
+
+proc with_target_charset { target_charset body } {
+ global gdb_prompt
+
+ set saved ""
+ gdb_test_multiple "show target-charset" "" {
+ -re "The target character set is \".*; currently (.*)\"\..*$gdb_prompt " {
+ set saved $expect_out(1,string)
+ }
+ -re "The target character set is \"(.*)\".*$gdb_prompt " {
+ set saved $expect_out(1,string)
+ }
+ -re ".*$gdb_prompt " {
+ fail "get target-charset"
+ }
+ }
+
+ gdb_test_no_output "set target-charset $target_charset" ""
+
+ set code [catch {uplevel 1 $body} result]
+
+ gdb_test_no_output "set target-charset $saved" ""
+
+ if {$code == 1} {
+ global errorInfo errorCode
+ return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
+ } else {
+ return -code $code $result
+ }
+}
+
+# Switch the default spawn id to SPAWN_ID, so that gdb_test,
+# mi_gdb_test etc. default to using it.
+
+proc switch_gdb_spawn_id {spawn_id} {
+ global gdb_spawn_id
+ global board board_info
+
+ set gdb_spawn_id $spawn_id
+ set board [host_info name]
+ set board_info($board,fileid) $spawn_id
+}
+
+# Clear the default spawn id.
+
+proc clear_gdb_spawn_id {} {
+ global gdb_spawn_id
+ global board board_info
+
+ unset -nocomplain gdb_spawn_id
+ set board [host_info name]
+ unset -nocomplain board_info($board,fileid)
+}
+
+# Run BODY with SPAWN_ID as current spawn id.
+
+proc with_spawn_id { spawn_id body } {
+ global gdb_spawn_id
+
+ if [info exists gdb_spawn_id] {
+ set saved_spawn_id $gdb_spawn_id
+ }
+
+ switch_gdb_spawn_id $spawn_id
+
+ set code [catch {uplevel 1 $body} result]
+
+ if [info exists saved_spawn_id] {
+ switch_gdb_spawn_id $saved_spawn_id
+ } else {
+ clear_gdb_spawn_id
+ }
+
+ if {$code == 1} {
+ global errorInfo errorCode
+ return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
+ } else {
+ return -code $code $result
+ }
+}
+
+# Select the largest timeout from all the timeouts:
+# - the local "timeout" variable of the scope two levels above,
+# - the global "timeout" variable,
+# - the board variable "gdb,timeout".
+
+proc get_largest_timeout {} {
+ upvar #0 timeout gtimeout
+ upvar 2 timeout timeout
+
+ set tmt 0
+ if [info exists timeout] {
+ set tmt $timeout
+ }
+ if { [info exists gtimeout] && $gtimeout > $tmt } {
+ set tmt $gtimeout
+ }
+ if { [target_info exists gdb,timeout]
+ && [target_info gdb,timeout] > $tmt } {
+ set tmt [target_info gdb,timeout]
+ }
+ if { $tmt == 0 } {
+ # Eeeeew.
+ set tmt 60
+ }
+
+ return $tmt
+}
+
+# Run tests in BODY with timeout increased by factor of FACTOR. When
+# BODY is finished, restore timeout.
+
+proc with_timeout_factor { factor body } {
+ global timeout
+
+ set savedtimeout $timeout
+
+ set timeout [expr [get_largest_timeout] * $factor]
+ set code [catch {uplevel 1 $body} result]
+
+ set timeout $savedtimeout
+ if {$code == 1} {
+ global errorInfo errorCode
+ return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
+ } else {
+ return -code $code $result
+ }
+}
+
# Return 1 if _Complex types are supported, otherwise, return 0.
-proc support_complex_tests {} {
- global support_complex_tests_saved
+gdb_caching_proc support_complex_tests {
- # Use the cached value, if it exists.
- if [info exists support_complex_tests_saved] {
- verbose "returning saved $support_complex_tests_saved" 2
- return $support_complex_tests_saved
+ if { [gdb_skip_float_test] } {
+ # If floating point is not supported, _Complex is not
+ # supported.
+ return 0
}
# Set up, compile, and execute a test program containing _Complex types.
# Include the current process ID in the file names to prevent conflicts
# with invocations for multiple testsuites.
- set src complex[pid].c
- set exe complex[pid].x
-
- set f [open $src "w"]
- puts $f "int main() {"
- puts $f "_Complex float cf;"
- puts $f "_Complex double cd;"
- puts $f "_Complex long double cld;"
- puts $f " return 0; }"
- close $f
+ set src [standard_temp_file complex[pid].c]
+ set exe [standard_temp_file complex[pid].x]
+
+ gdb_produce_source $src {
+ int main() {
+ _Complex float cf;
+ _Complex double cd;
+ _Complex long double cld;
+ return 0;
+ }
+ }
verbose "compiling testfile $src" 2
set compile_flags {debug nowarnings quiet}
if ![string match "" $lines] then {
verbose "testfile compilation failed, returning 0" 2
- set support_complex_tests_saved 0
+ set result 0
+ } else {
+ set result 1
+ }
+
+ return $result
+}
+
+# Return 1 if GDB can get a type for siginfo from the target, otherwise
+# return 0.
+
+proc supports_get_siginfo_type {} {
+ if { [istarget "*-*-linux*"] } {
+ return 1
} else {
- set support_complex_tests_saved 1
+ return 0
+ }
+}
+
+# Return 1 if the target supports hardware single stepping.
+
+proc can_hardware_single_step {} {
+
+ if { [istarget "arm*-*-*"] || [istarget "mips*-*-*"]
+ || [istarget "tic6x-*-*"] || [istarget "sparc*-*-linux*"]
+ || [istarget "nios2-*-*"] } {
+ return 0
}
- return $support_complex_tests_saved
+ return 1
}
# Return 1 if target hardware or OS supports single stepping to signal
# handler, otherwise, return 0.
proc can_single_step_to_signal_handler {} {
-
# Targets don't have hardware single step. On these targets, when
# a signal is delivered during software single step, gdb is unable
# to determine the next instruction addresses, because start of signal
# handler is one of them.
- if { [istarget "arm*-*-*"] || [istarget "mips*-*-*"]
- || [istarget "tic6x-*-*"] || [istarget "sparc*-*-linux*"] } {
- return 0
- }
-
- return 1
+ return [can_hardware_single_step]
}
# Return 1 if target supports process record, otherwise return 0.
return [target_info gdb,use_precord]
}
- if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"] } {
+ if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
+ || [istarget "i\[34567\]86-*-linux*"]
+ || [istarget "aarch64*-*-linux*"]
+ || [istarget "powerpc*-*-linux*"]
+ || [istarget "s390*-*-linux*"] } {
return 1
}
return [target_info gdb,can_reverse]
}
- if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"] } {
+ if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
+ || [istarget "i\[34567\]86-*-linux*"]
+ || [istarget "aarch64*-*-linux*"]
+ || [istarget "powerpc*-*-linux*"]
+ || [istarget "s390*-*-linux*"] } {
return 1
}
return 0
}
-# Return 1 if target is ILP32.
-# This cannot be decided simply from looking at the target string,
-# as it might depend on externally passed compiler options like -m64.
-proc is_ilp32_target {} {
- global is_ilp32_target_saved
+# Return 1 if readline library is used.
- # Use the cached value, if it exists. Cache value per "board" to handle
- # runs with multiple options (e.g. unix/{-m32,-64}) correctly.
- set me "is_ilp32_target"
- set board [target_info name]
- if [info exists is_ilp32_target_saved($board)] {
- verbose "$me: returning saved $is_ilp32_target_saved($board)" 2
- return $is_ilp32_target_saved($board)
+proc readline_is_used { } {
+ global gdb_prompt
+
+ gdb_test_multiple "show editing" "" {
+ -re ".*Editing of command lines as they are typed is on\..*$gdb_prompt $" {
+ return 1
+ }
+ -re ".*$gdb_prompt $" {
+ return 0
+ }
+ }
+}
+
+# Return 1 if target is ELF.
+gdb_caching_proc is_elf_target {
+ set me "is_elf_target"
+
+ set src [standard_temp_file is_elf_target[pid].c]
+ set obj [standard_temp_file is_elf_target[pid].o]
+
+ gdb_produce_source $src {
+ int foo () {return 0;}
+ }
+
+ verbose "$me: compiling testfile $src" 2
+ set lines [gdb_compile $src $obj object {quiet}]
+
+ file delete $src
+
+ if ![string match "" $lines] then {
+ verbose "$me: testfile compilation failed, returning 0" 2
+ return 0
+ }
+
+ set fp_obj [open $obj "r"]
+ fconfigure $fp_obj -translation binary
+ set data [read $fp_obj]
+ close $fp_obj
+
+ file delete $obj
+
+ set ELFMAG "\u007FELF"
+
+ if {[string compare -length 4 $data $ELFMAG] != 0} {
+ verbose "$me: returning 0" 2
+ return 0
}
+ verbose "$me: returning 1" 2
+ return 1
+}
+
+# Return 1 if the memory at address zero is readable.
+
+gdb_caching_proc is_address_zero_readable {
+ global gdb_prompt
+
+ set ret 0
+ gdb_test_multiple "x 0" "" {
+ -re "Cannot access memory at address 0x0.*$gdb_prompt $" {
+ set ret 0
+ }
+ -re ".*$gdb_prompt $" {
+ set ret 1
+ }
+ }
+
+ return $ret
+}
+
+# Produce source file NAME and write SOURCES into it.
- set src ilp32[pid].c
- set obj ilp32[pid].o
+proc gdb_produce_source { name sources } {
+ set index 0
+ set f [open $name "w"]
- set f [open $src "w"]
- puts $f "int dummy\[sizeof (int) == 4"
- puts $f " && sizeof (void *) == 4"
- puts $f " && sizeof (long) == 4 ? 1 : -1\];"
+ puts $f $sources
close $f
+}
+
+# Return 1 if target is ILP32.
+# This cannot be decided simply from looking at the target string,
+# as it might depend on externally passed compiler options like -m64.
+gdb_caching_proc is_ilp32_target {
+ set me "is_ilp32_target"
+
+ set src [standard_temp_file ilp32[pid].c]
+ set obj [standard_temp_file ilp32[pid].o]
+
+ gdb_produce_source $src {
+ int dummy[sizeof (int) == 4
+ && sizeof (void *) == 4
+ && sizeof (long) == 4 ? 1 : -1];
+ }
verbose "$me: compiling testfile $src" 2
set lines [gdb_compile $src $obj object {quiet}]
if ![string match "" $lines] then {
verbose "$me: testfile compilation failed, returning 0" 2
- return [set is_ilp32_target_saved($board) 0]
+ return 0
}
verbose "$me: returning 1" 2
- return [set is_ilp32_target_saved($board) 1]
+ return 1
}
# Return 1 if target is LP64.
# This cannot be decided simply from looking at the target string,
# as it might depend on externally passed compiler options like -m64.
-proc is_lp64_target {} {
- global is_lp64_target_saved
-
- # Use the cached value, if it exists. Cache value per "board" to handle
- # runs with multiple options (e.g. unix/{-m32,-64}) correctly.
+gdb_caching_proc is_lp64_target {
set me "is_lp64_target"
- set board [target_info name]
- if [info exists is_lp64_target_saved($board)] {
- verbose "$me: returning saved $is_lp64_target_saved($board)" 2
- return $is_lp64_target_saved($board)
+
+ set src [standard_temp_file lp64[pid].c]
+ set obj [standard_temp_file lp64[pid].o]
+
+ gdb_produce_source $src {
+ int dummy[sizeof (int) == 4
+ && sizeof (void *) == 8
+ && sizeof (long) == 8 ? 1 : -1];
}
- set src lp64[pid].c
- set obj lp64[pid].o
+ verbose "$me: compiling testfile $src" 2
+ set lines [gdb_compile $src $obj object {quiet}]
+ file delete $src
+ file delete $obj
- set f [open $src "w"]
- puts $f "int dummy\[sizeof (int) == 4"
- puts $f " && sizeof (void *) == 8"
- puts $f " && sizeof (long) == 8 ? 1 : -1\];"
- close $f
+ if ![string match "" $lines] then {
+ verbose "$me: testfile compilation failed, returning 0" 2
+ return 0
+ }
+
+ verbose "$me: returning 1" 2
+ return 1
+}
+
+# Return 1 if target has 64 bit addresses.
+# This cannot be decided simply from looking at the target string,
+# as it might depend on externally passed compiler options like -m64.
+gdb_caching_proc is_64_target {
+ set me "is_64_target"
+
+ set src [standard_temp_file is64[pid].c]
+ set obj [standard_temp_file is64[pid].o]
+
+ gdb_produce_source $src {
+ int function(void) { return 3; }
+ int dummy[sizeof (&function) == 8 ? 1 : -1];
+ }
verbose "$me: compiling testfile $src" 2
set lines [gdb_compile $src $obj object {quiet}]
if ![string match "" $lines] then {
verbose "$me: testfile compilation failed, returning 0" 2
- return [set is_lp64_target_saved($board) 0]
+ return 0
}
verbose "$me: returning 1" 2
- return [set is_lp64_target_saved($board) 1]
+ return 1
}
# Return 1 if target has x86_64 registers - either amd64 or x32.
# x32 target identifies as x86_64-*-linux*, therefore it cannot be determined
# just from the target string.
-proc is_amd64_regs_target {} {
- global is_amd64_regs_target_saved
-
+gdb_caching_proc is_amd64_regs_target {
if {![istarget "x86_64-*-*"] && ![istarget "i?86-*"]} {
return 0
}
- # Use the cached value, if it exists. Cache value per "board" to handle
- # runs with multiple options (e.g. unix/{-m32,-64}) correctly.
set me "is_amd64_regs_target"
- set board [target_info name]
- if [info exists is_amd64_regs_target_saved($board)] {
- verbose "$me: returning saved $is_amd64_regs_target_saved($board)" 2
- return $is_amd64_regs_target_saved($board)
- }
- set src reg64[pid].s
- set obj reg64[pid].o
+ set src [standard_temp_file reg64[pid].s]
+ set obj [standard_temp_file reg64[pid].o]
- set f [open $src "w"]
+ set list {}
foreach reg \
- {rax rbx rcx rdx rsi rdi rbp rsp r8 r9 r10 r11 r12 r13 r14 r15} {
- puts $f "\tincq %$reg"
- }
- close $f
+ {rax rbx rcx rdx rsi rdi rbp rsp r8 r9 r10 r11 r12 r13 r14 r15} {
+ lappend list "\tincq %$reg"
+ }
+ gdb_produce_source $src [join $list \n]
verbose "$me: compiling testfile $src" 2
set lines [gdb_compile $src $obj object {quiet}]
if ![string match "" $lines] then {
verbose "$me: testfile compilation failed, returning 0" 2
- return [set is_amd64_regs_target_saved($board) 0]
+ return 0
}
verbose "$me: returning 1" 2
- return [set is_amd64_regs_target_saved($board) 1]
+ return 1
}
# Return 1 if this target is an x86 or x86-64 with -m32.
return [expr [is_ilp32_target] && ![is_amd64_regs_target]]
}
+# Return 1 if this target is an arm or aarch32 on aarch64.
+
+gdb_caching_proc is_aarch32_target {
+ if { [istarget "arm*-*-*"] } {
+ return 1
+ }
+
+ if { ![istarget "aarch64*-*-*"] } {
+ return 0
+ }
+
+ set me "is_aarch32_target"
+
+ set src [standard_temp_file aarch32[pid].s]
+ set obj [standard_temp_file aarch32[pid].o]
+
+ set list {}
+ foreach reg \
+ {r0 r1 r2 r3} {
+ lappend list "\tmov $reg, $reg"
+ }
+ gdb_produce_source $src [join $list \n]
+
+ verbose "$me: compiling testfile $src" 2
+ set lines [gdb_compile $src $obj object {quiet}]
+ file delete $src
+ file delete $obj
+
+ if ![string match "" $lines] then {
+ verbose "$me: testfile compilation failed, returning 0" 2
+ return 0
+ }
+
+ verbose "$me: returning 1" 2
+ return 1
+}
+
+# Return 1 if this target is an aarch64, either lp64 or ilp32.
+
+proc is_aarch64_target {} {
+ if { ![istarget "aarch64*-*-*"] } {
+ return 0
+ }
+
+ return [expr ![is_aarch32_target]]
+}
+
# Return 1 if displaced stepping is supported on target, otherwise, return 0.
proc support_displaced_stepping {} {
if { [istarget "x86_64-*-linux*"] || [istarget "i\[34567\]86-*-linux*"]
|| [istarget "arm*-*-linux*"] || [istarget "powerpc-*-linux*"]
- || [istarget "powerpc64-*-linux*"] || [istarget "s390*-*-*"] } {
+ || [istarget "powerpc64-*-linux*"] || [istarget "s390*-*-*"]
+ || [istarget "aarch64*-*-linux*"] } {
return 1
}
- return 0
+ return 0
+}
+
+# Run a test on the target to see if it supports vmx hardware. Return 0 if so,
+# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
+
+gdb_caching_proc skip_altivec_tests {
+ global srcdir subdir gdb_prompt inferior_exited_re
+
+ set me "skip_altivec_tests"
+
+ # Some simulators are known to not support VMX instructions.
+ if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
+ verbose "$me: target known to not support VMX, returning 1" 2
+ return 1
+ }
+
+ # Make sure we have a compiler that understands altivec.
+ set compile_flags {debug nowarnings}
+ if [get_compiler_info] {
+ warning "Could not get compiler info"
+ return 1
+ }
+ if [test_compiler_info gcc*] {
+ set compile_flags "$compile_flags additional_flags=-maltivec"
+ } elseif [test_compiler_info xlc*] {
+ set compile_flags "$compile_flags additional_flags=-qaltivec"
+ } else {
+ verbose "Could not compile with altivec support, returning 1" 2
+ return 1
+ }
+
+ # Set up, compile, and execute a test program containing VMX instructions.
+ # Include the current process ID in the file names to prevent conflicts
+ # with invocations for multiple testsuites.
+ set src [standard_temp_file vmx[pid].c]
+ set exe [standard_temp_file vmx[pid].x]
+
+ gdb_produce_source $src {
+ int main() {
+ #ifdef __MACH__
+ asm volatile ("vor v0,v0,v0");
+ #else
+ asm volatile ("vor 0,0,0");
+ #endif
+ return 0;
+ }
+ }
+
+ verbose "$me: compiling testfile $src" 2
+ set lines [gdb_compile $src $exe executable $compile_flags]
+ file delete $src
+
+ if ![string match "" $lines] then {
+ verbose "$me: testfile compilation failed, returning 1" 2
+ return 1
+ }
+
+ # No error message, compilation succeeded so now run it via gdb.
+
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load "$exe"
+ gdb_run_cmd
+ gdb_expect {
+ -re ".*Illegal instruction.*${gdb_prompt} $" {
+ verbose -log "\n$me altivec hardware not detected"
+ set skip_vmx_tests 1
+ }
+ -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
+ verbose -log "\n$me: altivec hardware detected"
+ set skip_vmx_tests 0
+ }
+ default {
+ warning "\n$me: default case taken"
+ set skip_vmx_tests 1
+ }
+ }
+ gdb_exit
+ remote_file build delete $exe
+
+ verbose "$me: returning $skip_vmx_tests" 2
+ return $skip_vmx_tests
+}
+
+# Run a test on the target to see if it supports vmx hardware. Return 0 if so,
+# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
+
+gdb_caching_proc skip_vsx_tests {
+ global srcdir subdir gdb_prompt inferior_exited_re
+
+ set me "skip_vsx_tests"
+
+ # Some simulators are known to not support Altivec instructions, so
+ # they won't support VSX instructions as well.
+ if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
+ verbose "$me: target known to not support VSX, returning 1" 2
+ return 1
+ }
+
+ # Make sure we have a compiler that understands altivec.
+ set compile_flags {debug nowarnings quiet}
+ if [get_compiler_info] {
+ warning "Could not get compiler info"
+ return 1
+ }
+ if [test_compiler_info gcc*] {
+ set compile_flags "$compile_flags additional_flags=-mvsx"
+ } elseif [test_compiler_info xlc*] {
+ set compile_flags "$compile_flags additional_flags=-qasm=gcc"
+ } else {
+ verbose "Could not compile with vsx support, returning 1" 2
+ return 1
+ }
+
+ set src [standard_temp_file vsx[pid].c]
+ set exe [standard_temp_file vsx[pid].x]
+
+ gdb_produce_source $src {
+ int main() {
+ double a[2] = { 1.0, 2.0 };
+ #ifdef __MACH__
+ asm volatile ("lxvd2x v0,v0,%[addr]" : : [addr] "r" (a));
+ #else
+ asm volatile ("lxvd2x 0,0,%[addr]" : : [addr] "r" (a));
+ #endif
+ return 0;
+ }
+ }
+
+ verbose "$me: compiling testfile $src" 2
+ set lines [gdb_compile $src $exe executable $compile_flags]
+ file delete $src
+
+ if ![string match "" $lines] then {
+ verbose "$me: testfile compilation failed, returning 1" 2
+ return 1
+ }
+
+ # No error message, compilation succeeded so now run it via gdb.
+
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load "$exe"
+ gdb_run_cmd
+ gdb_expect {
+ -re ".*Illegal instruction.*${gdb_prompt} $" {
+ verbose -log "\n$me VSX hardware not detected"
+ set skip_vsx_tests 1
+ }
+ -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
+ verbose -log "\n$me: VSX hardware detected"
+ set skip_vsx_tests 0
+ }
+ default {
+ warning "\n$me: default case taken"
+ set skip_vsx_tests 1
+ }
+ }
+ gdb_exit
+ remote_file build delete $exe
+
+ verbose "$me: returning $skip_vsx_tests" 2
+ return $skip_vsx_tests
}
-# Run a test on the target to see if it supports vmx hardware. Return 0 if so,
+# Run a test on the target to see if it supports TSX hardware. Return 0 if so,
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
-proc skip_altivec_tests {} {
- global skip_vmx_tests_saved
+gdb_caching_proc skip_tsx_tests {
global srcdir subdir gdb_prompt inferior_exited_re
- # Use the cached value, if it exists.
- set me "skip_altivec_tests"
- if [info exists skip_vmx_tests_saved] {
- verbose "$me: returning saved $skip_vmx_tests_saved" 2
- return $skip_vmx_tests_saved
- }
+ set me "skip_tsx_tests"
- # Some simulators are known to not support VMX instructions.
- if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
- verbose "$me: target known to not support VMX, returning 1" 2
- return [set skip_vmx_tests_saved 1]
- }
+ set src [standard_temp_file tsx[pid].c]
+ set exe [standard_temp_file tsx[pid].x]
- # Make sure we have a compiler that understands altivec.
- set compile_flags {debug nowarnings}
- if [get_compiler_info not-used] {
- warning "Could not get compiler info"
- return 1
+ gdb_produce_source $src {
+ int main() {
+ asm volatile ("xbegin .L0");
+ asm volatile ("xend");
+ asm volatile (".L0: nop");
+ return 0;
}
- if [test_compiler_info gcc*] {
- set compile_flags "$compile_flags additional_flags=-maltivec"
- } elseif [test_compiler_info xlc*] {
- set compile_flags "$compile_flags additional_flags=-qaltivec"
- } else {
- verbose "Could not compile with altivec support, returning 1" 2
- return 1
}
- # Set up, compile, and execute a test program containing VMX instructions.
- # Include the current process ID in the file names to prevent conflicts
- # with invocations for multiple testsuites.
- set src vmx[pid].c
- set exe vmx[pid].x
-
- set f [open $src "w"]
- puts $f "int main() {"
- puts $f "#ifdef __MACH__"
- puts $f " asm volatile (\"vor v0,v0,v0\");"
- puts $f "#else"
- puts $f " asm volatile (\"vor 0,0,0\");"
- puts $f "#endif"
- puts $f " return 0; }"
- close $f
-
verbose "$me: compiling testfile $src" 2
- set lines [gdb_compile $src $exe executable $compile_flags]
+ set lines [gdb_compile $src $exe executable {nowarnings quiet}]
file delete $src
if ![string match "" $lines] then {
- verbose "$me: testfile compilation failed, returning 1" 2
- return [set skip_vmx_tests_saved 1]
+ verbose "$me: testfile compilation failed." 2
+ return 1
}
# No error message, compilation succeeded so now run it via gdb.
gdb_run_cmd
gdb_expect {
-re ".*Illegal instruction.*${gdb_prompt} $" {
- verbose -log "\n$me altivec hardware not detected"
- set skip_vmx_tests_saved 1
+ verbose -log "$me: TSX hardware not detected."
+ set skip_tsx_tests 1
}
-re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
- verbose -log "\n$me: altivec hardware detected"
- set skip_vmx_tests_saved 0
+ verbose -log "$me: TSX hardware detected."
+ set skip_tsx_tests 0
}
default {
- warning "\n$me: default case taken"
- set skip_vmx_tests_saved 1
+ warning "\n$me: default case taken."
+ set skip_tsx_tests 1
}
}
gdb_exit
remote_file build delete $exe
- verbose "$me: returning $skip_vmx_tests_saved" 2
- return $skip_vmx_tests_saved
+ verbose "$me: returning $skip_tsx_tests" 2
+ return $skip_tsx_tests
}
-# Run a test on the target to see if it supports vmx hardware. Return 0 if so,
+# Run a test on the target to see if it supports btrace hardware. Return 0 if so,
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
-proc skip_vsx_tests {} {
- global skip_vsx_tests_saved
+gdb_caching_proc skip_btrace_tests {
global srcdir subdir gdb_prompt inferior_exited_re
- # Use the cached value, if it exists.
- set me "skip_vsx_tests"
- if [info exists skip_vsx_tests_saved] {
- verbose "$me: returning saved $skip_vsx_tests_saved" 2
- return $skip_vsx_tests_saved
+ set me "skip_btrace_tests"
+ if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
+ verbose "$me: target does not support btrace, returning 1" 2
+ return 1
}
- # Some simulators are known to not support Altivec instructions, so
- # they won't support VSX instructions as well.
- if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
- verbose "$me: target known to not support VSX, returning 1" 2
- return [set skip_vsx_tests_saved 1]
+ # Set up, compile, and execute a test program.
+ # Include the current process ID in the file names to prevent conflicts
+ # with invocations for multiple testsuites.
+ set src [standard_temp_file btrace[pid].c]
+ set exe [standard_temp_file btrace[pid].x]
+
+ gdb_produce_source $src {
+ int main(void) { return 0; }
}
- # Make sure we have a compiler that understands altivec.
+ verbose "$me: compiling testfile $src" 2
set compile_flags {debug nowarnings quiet}
- if [get_compiler_info not-used] {
- warning "Could not get compiler info"
- return 1
+ set lines [gdb_compile $src $exe executable $compile_flags]
+
+ if ![string match "" $lines] then {
+ verbose "$me: testfile compilation failed, returning 1" 2
+ file delete $src
+ return 1
}
- if [test_compiler_info gcc*] {
- set compile_flags "$compile_flags additional_flags=-mvsx"
- } elseif [test_compiler_info xlc*] {
- set compile_flags "$compile_flags additional_flags=-qasm=gcc"
- } else {
- verbose "Could not compile with vsx support, returning 1" 2
+
+ # No error message, compilation succeeded so now run it via gdb.
+
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load $exe
+ if ![runto_main] {
+ file delete $src
+ return 1
+ }
+ file delete $src
+ # In case of an unexpected output, we return 2 as a fail value.
+ set skip_btrace_tests 2
+ gdb_test_multiple "record btrace" "check btrace support" {
+ -re "You can't do that when your target is.*\r\n$gdb_prompt $" {
+ set skip_btrace_tests 1
+ }
+ -re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
+ set skip_btrace_tests 1
+ }
+ -re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
+ set skip_btrace_tests 1
+ }
+ -re "^record btrace\r\n$gdb_prompt $" {
+ set skip_btrace_tests 0
+ }
+ }
+ gdb_exit
+ remote_file build delete $exe
+
+ verbose "$me: returning $skip_btrace_tests" 2
+ return $skip_btrace_tests
+}
+
+# Run a test on the target to see if it supports btrace pt hardware.
+# Return 0 if so, 1 if it does not. Based on 'check_vmx_hw_available'
+# from the GCC testsuite.
+
+gdb_caching_proc skip_btrace_pt_tests {
+ global srcdir subdir gdb_prompt inferior_exited_re
+
+ set me "skip_btrace_tests"
+ if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
+ verbose "$me: target does not support btrace, returning 1" 2
return 1
}
- set src vsx[pid].c
- set exe vsx[pid].x
+ # Set up, compile, and execute a test program.
+ # Include the current process ID in the file names to prevent conflicts
+ # with invocations for multiple testsuites.
+ set src [standard_temp_file btrace[pid].c]
+ set exe [standard_temp_file btrace[pid].x]
- set f [open $src "w"]
- puts $f "int main() {"
- puts $f " double a\[2\] = { 1.0, 2.0 };"
- puts $f "#ifdef __MACH__"
- puts $f " asm volatile (\"lxvd2x v0,v0,%\[addr\]\" : : \[addr\] \"r\" (a));"
- puts $f "#else"
- puts $f " asm volatile (\"lxvd2x 0,0,%\[addr\]\" : : \[addr\] \"r\" (a));"
- puts $f "#endif"
- puts $f " return 0; }"
- close $f
+ gdb_produce_source $src {
+ int main(void) { return 0; }
+ }
verbose "$me: compiling testfile $src" 2
+ set compile_flags {debug nowarnings quiet}
set lines [gdb_compile $src $exe executable $compile_flags]
- file delete $src
if ![string match "" $lines] then {
verbose "$me: testfile compilation failed, returning 1" 2
- return [set skip_vsx_tests_saved 1]
+ file delete $src
+ return 1
}
# No error message, compilation succeeded so now run it via gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
- gdb_load "$exe"
- gdb_run_cmd
- gdb_expect {
- -re ".*Illegal instruction.*${gdb_prompt} $" {
- verbose -log "\n$me VSX hardware not detected"
- set skip_vsx_tests_saved 1
+ gdb_load $exe
+ if ![runto_main] {
+ file delete $src
+ return 1
+ }
+ file delete $src
+ # In case of an unexpected output, we return 2 as a fail value.
+ set skip_btrace_tests 2
+ gdb_test_multiple "record btrace pt" "check btrace pt support" {
+ -re "You can't do that when your target is.*\r\n$gdb_prompt $" {
+ set skip_btrace_tests 1
}
- -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
- verbose -log "\n$me: VSX hardware detected"
- set skip_vsx_tests_saved 0
+ -re "Target does not support branch tracing.*\r\n$gdb_prompt $" {
+ set skip_btrace_tests 1
}
- default {
- warning "\n$me: default case taken"
- set skip_vsx_tests_saved 1
+ -re "Could not enable branch tracing.*\r\n$gdb_prompt $" {
+ set skip_btrace_tests 1
+ }
+ -re "support was disabled at compile time.*\r\n$gdb_prompt $" {
+ set skip_btrace_tests 1
+ }
+ -re "^record btrace pt\r\n$gdb_prompt $" {
+ set skip_btrace_tests 0
}
}
gdb_exit
remote_file build delete $exe
- verbose "$me: returning $skip_vsx_tests_saved" 2
- return $skip_vsx_tests_saved
-}
-
-# Skip all the tests in the file if you are not on an hppa running
-# hpux target.
-
-proc skip_hp_tests {} {
- eval set skip_hp [ expr ![isnative] || ![istarget "hppa*-*-hpux*"] ]
- verbose "Skip hp tests is $skip_hp"
- return $skip_hp
+ verbose "$me: returning $skip_btrace_tests" 2
+ return $skip_btrace_tests
}
# Return whether we should skip tests for showing inlined functions in
if { [istarget "i?86-*-*"]
|| [istarget "x86_64-*-*"]
|| [istarget "ia64-*-*"]
- || [istarget "arm*-*-*"]} {
+ || [istarget "arm*-*-*"]
+ || [istarget "aarch64*-*-*"]
+ || [istarget "s390*-*-*"] } {
return 0
}
|| [istarget "x86_64-*-*"]
|| [istarget "ia64-*-*"]
|| [istarget "arm*-*-*"]
+ || [istarget "aarch64*-*-*"]
|| [istarget "powerpc*-*-linux*"]
|| [istarget "s390*-*-*"] } {
return 0
return 0
}
-set compiler_info "unknown"
+# Return 1 if we should skip tests that require the runtime unwinder
+# hook. This must be invoked while gdb is running, after shared
+# libraries have been loaded. This is needed because otherwise a
+# shared libgcc won't be visible.
+
+proc skip_unwinder_tests {} {
+ global gdb_prompt
+
+ set ok 0
+ gdb_test_multiple "print _Unwind_DebugHook" "check for unwinder hook" {
+ -re "= .*no debug info.*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
+ }
+ -re "= .*_Unwind_DebugHook.*\r\n$gdb_prompt $" {
+ set ok 1
+ }
+ -re "No symbol .* in current context.\r\n$gdb_prompt $" {
+ }
+ }
+ if {!$ok} {
+ gdb_test_multiple "info probe" "check for stap probe in unwinder" {
+ -re ".*libgcc.*unwind.*\r\n$gdb_prompt $" {
+ set ok 1
+ }
+ -re "\r\n$gdb_prompt $" {
+ }
+ }
+ }
+ return $ok
+}
+
+# Return 0 if we should skip tests that require the libstdc++ stap
+# probes. This must be invoked while gdb is running, after shared
+# libraries have been loaded.
+
+proc skip_libstdcxx_probe_tests {} {
+ global gdb_prompt
+
+ set ok 0
+ gdb_test_multiple "info probe" "check for stap probe in libstdc++" {
+ -re ".*libstdcxx.*catch.*\r\n$gdb_prompt $" {
+ set ok 1
+ }
+ -re "\r\n$gdb_prompt $" {
+ }
+ }
+ return $ok
+}
+
+# Return 1 if we should skip tests of the "compile" feature.
+# This must be invoked after the inferior has been started.
+
+proc skip_compile_feature_tests {} {
+ global gdb_prompt
+
+ set result 0
+ gdb_test_multiple "compile code -- ;" "check for working compile command" {
+ "Could not load libcc1.*\r\n$gdb_prompt $" {
+ set result 1
+ }
+ -re "Command not supported on this host\\..*\r\n$gdb_prompt $" {
+ set result 1
+ }
+ -re "\r\n$gdb_prompt $" {
+ }
+ }
+ return $result
+}
+
+# Helper for gdb_is_target_remote. PROMPT_REGEXP is the expected
+# prompt.
+
+proc gdb_is_target_remote_prompt { prompt_regexp } {
+
+ set test "probe for target remote"
+ gdb_test_multiple "maint print target-stack" $test {
+ -re ".*emote serial target in gdb-specific protocol.*$prompt_regexp" {
+ pass $test
+ return 1
+ }
+ -re "$prompt_regexp" {
+ pass $test
+ }
+ }
+ return 0
+}
+
+# Check whether we're testing with the remote or extended-remote
+# targets.
+
+proc gdb_is_target_remote {} {
+ global gdb_prompt
+
+ return [gdb_is_target_remote_prompt "$gdb_prompt $"]
+}
+
+# Return the effective value of use_gdb_stub.
+#
+# If the use_gdb_stub global has been set (it is set when the gdb process is
+# spawned), return that. Otherwise, return the value of the use_gdb_stub
+# property from the board file.
+#
+# This is the preferred way of checking use_gdb_stub, since it allows to check
+# the value before the gdb has been spawned and it will return the correct value
+# even when it was overriden by the test.
+
+proc use_gdb_stub {} {
+ global use_gdb_stub
+
+ if [info exists use_gdb_stub] {
+ return $use_gdb_stub
+ }
+
+ return [target_info exists use_gdb_stub]
+}
+
+# Return 1 if the current remote target is an instance of our GDBserver, 0
+# otherwise. Return -1 if there was an error and we can't tell.
+
+gdb_caching_proc target_is_gdbserver {
+ global gdb_prompt
+
+ set is_gdbserver -1
+ set test "probing for GDBserver"
+
+ gdb_test_multiple "monitor help" $test {
+ -re "The following monitor commands are supported.*Quit GDBserver.*$gdb_prompt $" {
+ set is_gdbserver 1
+ }
+ -re "$gdb_prompt $" {
+ set is_gdbserver 0
+ }
+ }
+
+ if { $is_gdbserver == -1 } {
+ verbose -log "Unable to tell whether we are using GDBserver or not."
+ }
+
+ return $is_gdbserver
+}
+
+# N.B. compiler_info is intended to be local to this file.
+# Call test_compiler_info with no arguments to fetch its value.
+# Yes, this is counterintuitive when there's get_compiler_info,
+# but that's the current API.
+if [info exists compiler_info] {
+ unset compiler_info
+}
+
set gcc_compiled 0
-set hp_cc_compiler 0
-set hp_aCC_compiler 0
# Figure out what compiler I am using.
+# The result is cached so only the first invocation runs the compiler.
#
-# BINFILE is a "compiler information" output file. This implementation
-# does not use BINFILE.
-#
-# ARGS can be empty or "C++". If empty, "C" is assumed.
+# ARG can be empty or "C++". If empty, "C" is assumed.
#
# There are several ways to do this, with various problems.
#
# if the build machine is the same as the host machine, which is
# usually true of the targets which are not gcc. But this code does
# not figure which compiler to call, and it always ends up using the C
-# compiler. Not good for setting hp_aCC_compiler. Targets
-# hppa*-*-hpux* and mips*-*-irix* used to do this.
+# compiler. Not good for setting hp_aCC_compiler. Target
+# hppa*-*-hpux* used to do this.
#
# [ gdb_compile -E $ifile > $binfile.ci ]
# source $binfile.ci
#
# -- chastain 2004-01-06
-proc get_compiler_info {binfile args} {
+proc get_compiler_info {{arg ""}} {
# For compiler.c and compiler.cc
global srcdir
# Legacy global data symbols.
global gcc_compiled
- global hp_cc_compiler
- global hp_aCC_compiler
+
+ if [info exists compiler_info] {
+ # Already computed.
+ return 0
+ }
# Choose which file to preprocess.
set ifile "${srcdir}/lib/compiler.c"
- if { [llength $args] > 0 && [lindex $args 0] == "c++" } {
+ if { $arg == "c++" } {
set ifile "${srcdir}/lib/compiler.cc"
}
# Run $ifile through the right preprocessor.
# Toggle gdb.log to keep the compiler output out of the log.
+ set saved_log [log_file -info]
log_file
if [is_remote host] {
# We have to use -E and -o together, despite the comments
# above, because of how DejaGnu handles remote host testing.
set ppout "$outdir/compiler.i"
- gdb_compile "${ifile}" "$ppout" preprocess [list "$args" quiet]
+ gdb_compile "${ifile}" "$ppout" preprocess [list "$arg" quiet]
set file [open $ppout r]
set cppout [read $file]
close $file
} else {
- set cppout [ gdb_compile "${ifile}" "" preprocess [list "$args" quiet] ]
+ set cppout [ gdb_compile "${ifile}" "" preprocess [list "$arg" quiet] ]
}
- log_file -a "$outdir/$tool.log"
+ eval log_file $saved_log
# Eval the output.
set unknown 0
}
}
- # Reset to unknown compiler if any diagnostics happened.
+ # Set to unknown if for some reason compiler_info didn't get defined.
+ if ![info exists compiler_info] {
+ verbose -log "get_compiler_info: compiler_info not provided"
+ set compiler_info "unknown"
+ }
+ # Also set to unknown compiler if any diagnostics happened.
if { $unknown } {
+ verbose -log "get_compiler_info: got unexpected diagnostics"
set compiler_info "unknown"
}
# Set the legacy symbols.
- set gcc_compiled 0
- set hp_cc_compiler 0
- set hp_aCC_compiler 0
- if { [regexp "^gcc-1-" "$compiler_info" ] } { set gcc_compiled 1 }
- if { [regexp "^gcc-2-" "$compiler_info" ] } { set gcc_compiled 2 }
- if { [regexp "^gcc-3-" "$compiler_info" ] } { set gcc_compiled 3 }
- if { [regexp "^gcc-4-" "$compiler_info" ] } { set gcc_compiled 4 }
- if { [regexp "^gcc-5-" "$compiler_info" ] } { set gcc_compiled 5 }
- if { [regexp "^hpcc-" "$compiler_info" ] } { set hp_cc_compiler 1 }
- if { [regexp "^hpacc-" "$compiler_info" ] } { set hp_aCC_compiler 1 }
+ set gcc_compiled 0
+ regexp "^gcc-(\[0-9\]+)-" "$compiler_info" matchall gcc_compiled
# Log what happened.
verbose -log "get_compiler_info: $compiler_info"
uplevel \#0 { set true 1 }
uplevel \#0 { set false 0 }
- # Use of aCC results in boolean results being displayed as
- # "true" or "false"
- if { $hp_aCC_compiler } {
- uplevel \#0 { set true true }
- uplevel \#0 { set false false }
- }
-
- return 0;
+ return 0
}
+# Return the compiler_info string if no arg is provided.
+# Otherwise the argument is a glob-style expression to match against
+# compiler_info.
+
proc test_compiler_info { {compiler ""} } {
global compiler_info
+ get_compiler_info
- # if no arg, return the compiler_info string
-
- if [string match "" $compiler] {
- if [info exists compiler_info] {
- return $compiler_info
- } else {
- perror "No compiler info found."
- }
- }
+ # If no arg, return the compiler_info string.
+ if [string match "" $compiler] {
+ return $compiler_info
+ }
return [string match $compiler $compiler_info]
}
set gdb_wrapper_target ""
proc gdb_wrapper_init { args } {
- global gdb_wrapper_initialized;
- global gdb_wrapper_file;
- global gdb_wrapper_flags;
+ global gdb_wrapper_initialized
+ global gdb_wrapper_file
+ global gdb_wrapper_flags
global gdb_wrapper_target
if { $gdb_wrapper_initialized == 1 } { return; }
if {[target_info exists needs_status_wrapper] && \
[target_info needs_status_wrapper] != "0"} {
- set result [build_wrapper "testglue.o"];
+ set result [build_wrapper "testglue.o"]
if { $result != "" } {
- set gdb_wrapper_file [lindex $result 0];
- set gdb_wrapper_flags [lindex $result 1];
+ set gdb_wrapper_file [lindex $result 0]
+ set gdb_wrapper_flags [lindex $result 1]
} else {
warning "Status wrapper failed to build."
}
set gdb_wrapper_target [current_target_name]
}
+# Determine options that we always want to pass to the compiler.
+gdb_caching_proc universal_compile_options {
+ set me "universal_compile_options"
+ set options {}
+
+ set src [standard_temp_file ccopts[pid].c]
+ set obj [standard_temp_file ccopts[pid].o]
+
+ gdb_produce_source $src {
+ int foo(void) { return 0; }
+ }
+
+ # Try an option for disabling colored diagnostics. Some compilers
+ # yield colored diagnostics by default (when run from a tty) unless
+ # such an option is specified.
+ set opt "additional_flags=-fdiagnostics-color=never"
+ set lines [target_compile $src $obj object [list "quiet" $opt]]
+ if [string match "" $lines] then {
+ # Seems to have worked; use the option.
+ lappend options $opt
+ }
+ file delete $src
+ file delete $obj
+
+ verbose "$me: returning $options" 2
+ return $options
+}
+
# Some targets need to always link a special object in. Save its path here.
global gdb_saved_set_unbuffered_mode_obj
set gdb_saved_set_unbuffered_mode_obj ""
+# Compile source files specified by SOURCE into a binary of type TYPE at path
+# DEST. gdb_compile is implemented using DejaGnu's target_compile, so the type
+# parameter and most options are passed directly to it.
+#
+# The type can be one of the following:
+#
+# - object: Compile into an object file.
+# - executable: Compile and link into an executable.
+# - preprocess: Preprocess the source files.
+# - assembly: Generate assembly listing.
+#
+# The following options are understood and processed by gdb_compile:
+#
+# - shlib=so_path: Add SO_PATH to the sources, and enable some target-specific
+# quirks to be able to use shared libraries.
+# - shlib_load: Link with appropriate libraries to allow the test to
+# dynamically load libraries at runtime. For example, on Linux, this adds
+# -ldl so that the test can use dlopen.
+# - nowarnings: Inhibit all compiler warnings.
+#
+# And here are some of the not too obscure options understood by DejaGnu that
+# influence the compilation:
+#
+# - additional_flags=flag: Add FLAG to the compiler flags.
+# - libs=library: Add LIBRARY to the libraries passed to the linker. The
+# argument can be a file, in which case it's added to the sources, or a
+# linker flag.
+# - ldflags=flag: Add FLAG to the linker flags.
+# - incdir=path: Add PATH to the searched include directories.
+# - libdir=path: Add PATH to the linker searched directories.
+# - ada, c++, f77: Compile the file as Ada, C++ or Fortran.
+# - debug: Build with debug information.
+# - optimize: Build with optimization.
+
proc gdb_compile {source dest type options} {
- global GDB_TESTCASE_OPTIONS;
- global gdb_wrapper_file;
- global gdb_wrapper_flags;
- global gdb_wrapper_initialized;
+ global GDB_TESTCASE_OPTIONS
+ global gdb_wrapper_file
+ global gdb_wrapper_flags
+ global gdb_wrapper_initialized
global srcdir
global objdir
global gdb_saved_set_unbuffered_mode_obj
# Add platform-specific options if a shared library was specified using
# "shlib=librarypath" in OPTIONS.
- set new_options ""
+ set new_options {}
+ if {[lsearch -exact $options rust] != -1} {
+ # -fdiagnostics-color is not a rustcc option.
+ } else {
+ set new_options [universal_compile_options]
+ }
set shlib_found 0
set shlib_load 0
foreach opt $options {
- if [regexp {^shlib=(.*)} $opt dummy_var shlib_name] {
+ if {[regexp {^shlib=(.*)} $opt dummy_var shlib_name]
+ && $type == "executable"} {
if [test_compiler_info "xlc-*"] {
# IBM xlc compiler doesn't accept shared library named other
# than .so: use "-Wl," to bypass this
|| [istarget *-*-cygwin*]) } {
lappend new_options "additional_flags=-Wl,--enable-auto-import"
}
+ if { [test_compiler_info "gcc-*"] || [test_compiler_info "clang-*"] } {
+ # Undo debian's change in the default.
+ # Put it at the front to not override any user-provided
+ # value, and to make sure it appears in front of all the
+ # shlibs!
+ lappend new_options "early_flags=-Wl,--no-as-needed"
+ }
}
- } elseif { $opt == "shlib_load" } {
+ } elseif { $opt == "shlib_load" && $type == "executable" } {
set shlib_load 1
} else {
lappend new_options $opt
}
}
- # We typically link to shared libraries using an absolute path, and
- # that's how they are found at runtime. If we are going to
- # dynamically load one by basename, we must specify rpath. If we
- # are using a remote host, DejaGNU will link to the shared library
- # using a relative path, so again we must specify an rpath.
- if { $shlib_load || ($shlib_found && [is_remote target]) } {
+ # Because we link with libraries using their basename, we may need
+ # (depending on the platform) to set a special rpath value, to allow
+ # the executable to find the libraries it depends on.
+ if { $shlib_load || $shlib_found } {
if { ([istarget "*-*-mingw*"]
|| [istarget *-*-cygwin*]
- || [istarget *-*-pe*]
- || [istarget hppa*-*-hpux*])} {
+ || [istarget *-*-pe*]) } {
# Do not need anything.
} elseif { [istarget *-*-freebsd*] || [istarget *-*-openbsd*] } {
lappend new_options "ldflags=-Wl,-rpath,${outdir}"
}
set options $new_options
- if [target_info exists is_vxworks] {
- set options2 { "additional_flags=-Dvxworks" }
- set options [concat $options2 $options]
- }
if [info exists GDB_TESTCASE_OPTIONS] {
- lappend options "additional_flags=$GDB_TESTCASE_OPTIONS";
+ lappend options "additional_flags=$GDB_TESTCASE_OPTIONS"
}
verbose "options are $options"
verbose "source is $source $dest $type $options"
if { $result != "" } {
return $result
}
-
- set gdb_saved_set_unbuffered_mode_obj ${objdir}/set_unbuffered_mode_saved.o
+ if {[is_remote host]} {
+ set gdb_saved_set_unbuffered_mode_obj set_unbuffered_mode_saved.o
+ } else {
+ set gdb_saved_set_unbuffered_mode_obj ${objdir}/set_unbuffered_mode_saved.o
+ }
# Link a copy of the output object, because the
# original may be automatically deleted.
- remote_exec host "cp -f $unbuf_obj $gdb_saved_set_unbuffered_mode_obj"
+ remote_download host $unbuf_obj $gdb_saved_set_unbuffered_mode_obj
} else {
verbose "gdb_saved_set_unbuffered_obj already compiled"
}
}
}
- set result [target_compile $source $dest $type $options];
+ set result [target_compile $source $dest $type $options]
# Prune uninteresting compiler (and linker) output.
regsub "Creating library file: \[^\r\n\]*\[\r\n\]+" $result "" result
- regsub "\[\r\n\]*$" "$result" "" result;
- regsub "^\[\r\n\]*" "$result" "" result;
+ regsub "\[\r\n\]*$" "$result" "" result
+ regsub "^\[\r\n\]*" "$result" "" result
if {[lsearch $options quiet] < 0} {
# We shall update this on a per language basis, to avoid
clone_output "gdb compile failed, $result"
}
}
- return $result;
+ return $result
}
}
}
if {!$built_binfile} {
- unsupported "Couldn't compile $source: ${why_msg}"
+ unsupported "couldn't compile [file tail $source]: ${why_msg}"
return -1
}
}
-# Build a shared library from SOURCES. You must use get_compiler_info
-# first.
+# Build a shared library from SOURCES.
proc gdb_compile_shlib {sources dest options} {
set obj_options $options
+ set info_options ""
+ if { [lsearch -exact $options "c++"] >= 0 } {
+ set info_options "c++"
+ }
+ if [get_compiler_info ${info_options}] {
+ return -1
+ }
+
switch -glob [test_compiler_info] {
"xlc-*" {
lappend obj_options "additional_flags=-qpic"
}
+ "clang-*" {
+ if { !([istarget "*-*-cygwin*"]
+ || [istarget "*-*-mingw*"]) } {
+ lappend obj_options "additional_flags=-fpic"
+ }
+ }
"gcc-*" {
if { !([istarget "powerpc*-*-aix*"]
|| [istarget "rs6000*-*-aix*"]
lappend obj_options "additional_flags=-fpic"
}
}
+ "icc-*" {
+ lappend obj_options "additional_flags=-fpic"
+ }
default {
- switch -glob [istarget] {
- "hppa*-hp-hpux*" {
- lappend obj_options "additional_flags=+z"
- }
- "mips-sgi-irix*" {
- # Disable SGI compiler's implicit -Dsgi
- lappend obj_options "additional_flags=-Usgi"
- }
- default {
- # don't know what the compiler is...
- }
- }
+ # don't know what the compiler is...
}
}
lappend objects ${outdir}/${sourcebase}.o
}
- if [istarget "hppa*-*-hpux*"] {
- remote_exec build "ld -b ${objects} -o ${dest}"
+ set link_options $options
+ if [test_compiler_info "xlc-*"] {
+ lappend link_options "additional_flags=-qmkshrobj"
} else {
- set link_options $options
- if [test_compiler_info "xlc-*"] {
- lappend link_options "additional_flags=-qmkshrobj"
- } else {
- lappend link_options "additional_flags=-shared"
-
- if { ([istarget "*-*-mingw*"]
- || [istarget *-*-cygwin*]
- || [istarget *-*-pe*])} {
- lappend link_options "additional_flags=-Wl,--out-implib,${dest}.a"
- } elseif [is_remote target] {
- # By default, we do not set the soname. This causes the linker
- # on ELF systems to create a DT_NEEDED entry in the executable
- # refering to the full path name of the library. This is a
- # problem in remote testing if the library is in a different
- # directory there. To fix this, we set a soname of just the
- # base filename for the library, and add an appropriate -rpath
- # to the main executable (in gdb_compile).
- set destbase [file tail $dest]
- lappend link_options "additional_flags=-Wl,-soname,$destbase"
- }
- }
- if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} {
- return -1
- }
+ lappend link_options "additional_flags=-shared"
+
+ if { ([istarget "*-*-mingw*"]
+ || [istarget *-*-cygwin*]
+ || [istarget *-*-pe*]) } {
+ if { [is_remote host] } {
+ set name [file tail ${dest}]
+ } else {
+ set name ${dest}
+ }
+ lappend link_options "additional_flags=-Wl,--out-implib,${name}.a"
+ } else {
+ # Set the soname of the library. This causes the linker on ELF
+ # systems to create the DT_NEEDED entry in the executable referring
+ # to the soname of the library, and not its absolute path. This
+ # (using the absolute path) would be problem when testing on a
+ # remote target.
+ #
+ # In conjunction with setting the soname, we add the special
+ # rpath=$ORIGIN value when building the executable, so that it's
+ # able to find the library in its own directory.
+ set destbase [file tail $dest]
+ lappend link_options "additional_flags=-Wl,-soname,$destbase"
+ }
+ }
+ if {[gdb_compile "${objects}" "${dest}" executable $link_options] != ""} {
+ return -1
+ }
+ if { [is_remote host]
+ && ([istarget "*-*-mingw*"]
+ || [istarget *-*-cygwin*]
+ || [istarget *-*-pe*]) } {
+ set dest_tail_name [file tail ${dest}]
+ remote_upload host $dest_tail_name.a ${dest}.a
+ remote_file host delete $dest_tail_name.a
}
+
+ return ""
}
# This is just like gdb_compile_shlib, above, except that it tries compiling
}
}
if {!$built_binfile} {
- unsupported "Couldn't compile $sources: ${why_msg}"
+ unsupported "couldn't compile $sources: ${why_msg}"
return -1
}
}
}
}
if {!$built_binfile} {
- unsupported "Couldn't compile $source: ${why_msg}"
+ unsupported "couldn't compile [file tail $source]: ${why_msg}"
return -1
}
}
proc send_gdb { string } {
- global suppress_flag;
+ global suppress_flag
if { $suppress_flag } {
- return "suppressed";
+ return "suppressed"
}
- return [remote_send host "$string"];
+ return [remote_send host "$string"]
}
-#
-#
+# Send STRING to the inferior's terminal.
-proc gdb_expect { args } {
- if { [llength $args] == 2 && [lindex $args 0] != "-re" } {
- set atimeout [lindex $args 0];
- set expcode [list [lindex $args 1]];
+proc send_inferior { string } {
+ global inferior_spawn_id
+
+ if {[catch "send -i $inferior_spawn_id -- \$string" errorInfo]} {
+ return "$errorInfo"
} else {
- set expcode $args;
+ return ""
}
+}
- upvar timeout timeout;
-
- if [target_info exists gdb,timeout] {
- if [info exists timeout] {
- if { $timeout < [target_info gdb,timeout] } {
- set gtimeout [target_info gdb,timeout];
- } else {
- set gtimeout $timeout;
- }
- } else {
- set gtimeout [target_info gdb,timeout];
- }
- }
+#
+#
- if ![info exists gtimeout] {
- global timeout;
- if [info exists timeout] {
- set gtimeout $timeout;
- }
+proc gdb_expect { args } {
+ if { [llength $args] == 2 && [lindex $args 0] != "-re" } {
+ set atimeout [lindex $args 0]
+ set expcode [list [lindex $args 1]]
+ } else {
+ set expcode $args
}
+ # A timeout argument takes precedence, otherwise of all the timeouts
+ # select the largest.
if [info exists atimeout] {
- if { ![info exists gtimeout] || $gtimeout < $atimeout } {
- set gtimeout $atimeout;
- }
+ set tmt $atimeout
} else {
- if ![info exists gtimeout] {
- # Eeeeew.
- set gtimeout 60;
- }
+ set tmt [get_largest_timeout]
}
- global suppress_flag;
- global remote_suppress_flag;
+ global suppress_flag
+ global remote_suppress_flag
if [info exists remote_suppress_flag] {
- set old_val $remote_suppress_flag;
+ set old_val $remote_suppress_flag
}
if [info exists suppress_flag] {
if { $suppress_flag } {
- set remote_suppress_flag 1;
+ set remote_suppress_flag 1
}
}
set code [catch \
- {uplevel remote_expect host $gtimeout $expcode} string];
+ {uplevel remote_expect host $tmt $expcode} string]
if [info exists old_val] {
- set remote_suppress_flag $old_val;
+ set remote_suppress_flag $old_val
} else {
if [info exists remote_suppress_flag] {
- unset remote_suppress_flag;
+ unset remote_suppress_flag
}
}
if {$code == 1} {
- global errorInfo errorCode;
+ global errorInfo errorCode
return -code error -errorinfo $errorInfo -errorcode $errorCode $string
} else {
#
#
proc gdb_suppress_entire_file { reason } {
- global suppress_flag;
+ global suppress_flag
- warning "$reason\n";
- set suppress_flag -1;
+ warning "$reason\n"
+ set suppress_flag -1
}
#
# gdb_stop_suppressing_tests).
#
proc gdb_suppress_tests { args } {
- global suppress_flag;
+ global suppress_flag
return; # fnf - disable pending review of results where
# testsuite ran better without this
- incr suppress_flag;
+ incr suppress_flag
if { $suppress_flag == 1 } {
if { [llength $args] > 0 } {
- warning "[lindex $args 0]\n";
+ warning "[lindex $args 0]\n"
} else {
- warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n";
+ warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n"
}
}
}
# Clear suppress_flag.
#
proc gdb_stop_suppressing_tests { } {
- global suppress_flag;
+ global suppress_flag
if [info exists suppress_flag] {
if { $suppress_flag > 0 } {
- set suppress_flag 0;
- clone_output "Tests restarted.\n";
+ set suppress_flag 0
+ clone_output "Tests restarted.\n"
}
} else {
- set suppress_flag 0;
+ set suppress_flag 0
}
}
proc gdb_clear_suppressed { } {
- global suppress_flag;
+ global suppress_flag
+
+ set suppress_flag 0
+}
+
+# Spawn the gdb process.
+#
+# This doesn't expect any output or do any other initialization,
+# leaving those to the caller.
+#
+# Overridable function -- you can override this function in your
+# baseboard file.
+
+proc gdb_spawn { } {
+ default_gdb_spawn
+}
+
+# Spawn GDB with CMDLINE_FLAGS appended to the GDBFLAGS global.
+
+proc gdb_spawn_with_cmdline_opts { cmdline_flags } {
+ global GDBFLAGS
+
+ set saved_gdbflags $GDBFLAGS
+
+ if {$GDBFLAGS != ""} {
+ append GDBFLAGS " "
+ }
+ append GDBFLAGS $cmdline_flags
- set suppress_flag 0;
+ set res [gdb_spawn]
+
+ set GDBFLAGS $saved_gdbflags
+
+ return $res
}
+# Start gdb running, wait for prompt, and disable the pagers.
+
+# Overridable function -- you can override this function in your
+# baseboard file.
+
proc gdb_start { } {
default_gdb_start
}
catch default_gdb_exit
}
+# Return true if we can spawn a program on the target and attach to
+# it.
+
+proc can_spawn_for_attach { } {
+ # We use exp_pid to get the inferior's pid, assuming that gives
+ # back the pid of the program. On remote boards, that would give
+ # us instead the PID of e.g., the ssh client, etc.
+ if [is_remote target] then {
+ return 0
+ }
+
+ # The "attach" command doesn't make sense when the target is
+ # stub-like, where GDB finds the program already started on
+ # initial connection.
+ if {[target_info exists use_gdb_stub]} {
+ return 0
+ }
+
+ # Assume yes.
+ return 1
+}
+
+# Kill a progress previously started with spawn_wait_for_attach, and
+# reap its wait status. PROC_SPAWN_ID is the spawn id associated with
+# the process.
+
+proc kill_wait_spawned_process { proc_spawn_id } {
+ set pid [exp_pid -i $proc_spawn_id]
+
+ verbose -log "killing ${pid}"
+ remote_exec build "kill -9 ${pid}"
+
+ verbose -log "closing ${proc_spawn_id}"
+ catch "close -i $proc_spawn_id"
+ verbose -log "waiting for ${proc_spawn_id}"
+
+ # If somehow GDB ends up still attached to the process here, a
+ # blocking wait hangs until gdb is killed (or until gdb / the
+ # ptracer reaps the exit status too, but that won't happen because
+ # something went wrong.) Passing -nowait makes expect tell Tcl to
+ # wait for the PID in the background. That's fine because we
+ # don't care about the exit status. */
+ wait -nowait -i $proc_spawn_id
+}
+
+# Returns the process id corresponding to the given spawn id.
+
+proc spawn_id_get_pid { spawn_id } {
+ set testpid [exp_pid -i $spawn_id]
+
+ if { [istarget "*-*-cygwin*"] } {
+ # testpid is the Cygwin PID, GDB uses the Windows PID, which
+ # might be different due to the way fork/exec works.
+ set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ]
+ }
+
+ return $testpid
+}
+
+# Start a set of programs running and then wait for a bit, to be sure
+# that they can be attached to. Return a list of processes spawn IDs,
+# one element for each process spawned. It's a test error to call
+# this when [can_spawn_for_attach] is false.
+
+proc spawn_wait_for_attach { executable_list } {
+ set spawn_id_list {}
+
+ if ![can_spawn_for_attach] {
+ # The caller should have checked can_spawn_for_attach itself
+ # before getting here.
+ error "can't spawn for attach with this target/board"
+ }
+
+ foreach {executable} $executable_list {
+ # Note we use Expect's spawn, not Tcl's exec, because with
+ # spawn we control when to wait for/reap the process. That
+ # allows killing the process by PID without being subject to
+ # pid-reuse races.
+ lappend spawn_id_list [remote_spawn target $executable]
+ }
+
+ sleep 2
+
+ return $spawn_id_list
+}
+
#
# gdb_load_cmd -- load a file into the debugger.
# ARGS - additional args to load command.
return -1
}
+# Invoke "gcore". CORE is the name of the core file to write. TEST
+# is the name of the test case. This will return 1 if the core file
+# was created, 0 otherwise. If this fails to make a core file because
+# this configuration of gdb does not support making core files, it
+# will call "unsupported", not "fail". However, if this fails to make
+# a core file for some other reason, then it will call "fail".
+
+proc gdb_gcore_cmd {core test} {
+ global gdb_prompt
+
+ set result 0
+ gdb_test_multiple "gcore $core" $test {
+ -re "Saved corefile .*\[\r\n\]+$gdb_prompt $" {
+ pass $test
+ set result 1
+ }
+ -re "(?:Can't create a corefile|Target does not support core file generation\\.)\[\r\n\]+$gdb_prompt $" {
+ unsupported $test
+ }
+ }
+
+ return $result
+}
+
+# Load core file CORE. TEST is the name of the test case.
+# This will record a pass/fail for loading the core file.
+# Returns:
+# 1 - core file is successfully loaded
+# 0 - core file loaded but has a non fatal error
+# -1 - core file failed to load
+
+proc gdb_core_cmd { core test } {
+ global gdb_prompt
+
+ gdb_test_multiple "core $core" "$test" {
+ -re "\\\[Thread debugging using \[^ \r\n\]* enabled\\\]\r\n" {
+ exp_continue
+ }
+ -re " is not a core dump:.*\r\n$gdb_prompt $" {
+ fail "$test (bad file format)"
+ return -1
+ }
+ -re ": No such file or directory.*\r\n$gdb_prompt $" {
+ fail "$test (file not found)"
+ return -1
+ }
+ -re "Couldn't find .* registers in core file.*\r\n$gdb_prompt $" {
+ fail "$test (incomplete note section)"
+ return 0
+ }
+ -re "Core was generated by .*\r\n$gdb_prompt $" {
+ pass "$test"
+ return 1
+ }
+ -re ".*$gdb_prompt $" {
+ fail "$test"
+ return -1
+ }
+ timeout {
+ fail "$test (timeout)"
+ return -1
+ }
+ }
+ fail "unsupported output from 'core' command"
+ return -1
+}
+
# Return the filename to download to the target and load on the target
# for this shared library. Normally just LIBNAME, unless shared libraries
# for this target have separate link and load images.
}
}
-# gdb_download
+# Like remote_download but provides a gdb-specific behavior.
+#
+# If the destination board is remote, the local file FROMFILE is transferred as
+# usual with remote_download to TOFILE on the remote board. The destination
+# filename is added to the CLEANFILES global, so it can be cleaned up at the
+# end of the test.
#
-# Copy a file to the remote target and return its target filename.
-# Schedule the file to be deleted at the end of this test.
+# If the destination board is local, the destination path TOFILE is passed
+# through standard_output_file, and FROMFILE is copied there.
+#
+# In both cases, if TOFILE is omitted, it defaults to the [file tail] of
+# FROMFILE.
-proc gdb_download { filename } {
- global cleanfiles
+proc gdb_remote_download {dest fromfile {tofile {}}} {
+ # If TOFILE is not given, default to the same filename as FROMFILE.
+ if {[string length $tofile] == 0} {
+ set tofile [file tail $fromfile]
+ }
+
+ if {[is_remote $dest]} {
+ # When the DEST is remote, we simply send the file to DEST.
+ global cleanfiles
+
+ set destname [remote_download $dest $fromfile $tofile]
+ lappend cleanfiles $destname
+
+ return $destname
+ } else {
+ # When the DEST is local, we copy the file to the test directory (where
+ # the executable is).
+ #
+ # Note that we pass TOFILE through standard_output_file, regardless of
+ # whether it is absolute or relative, because we don't want the tests
+ # to be able to write outside their standard output directory.
+
+ set tofile [standard_output_file $tofile]
- set destname [remote_download target $filename]
- lappend cleanfiles $destname
- return $destname
+ file copy -force $fromfile $tofile
+
+ return $tofile
+ }
}
-# gdb_load_shlibs LIB...
+# gdb_load_shlib LIB...
#
-# Copy the listed libraries to the target.
+# Copy the listed library to the target.
-proc gdb_load_shlibs { args } {
- if {![is_remote target]} {
- return
- }
+proc gdb_load_shlib { file } {
+ set dest [gdb_remote_download target [shlib_target_file $file]]
- foreach file $args {
- gdb_download [shlib_target_file $file]
+ if {[is_remote target]} {
+ # If the target is remote, we need to tell gdb where to find the
+ # libraries.
+ #
+ # We could set this even when not testing remotely, but a user
+ # generally won't set it unless necessary. In order to make the tests
+ # more like the real-life scenarios, we don't set it for local testing.
+ gdb_test "set solib-search-path [file dirname $file]" "" ""
}
- # Even if the target supplies full paths for shared libraries,
- # they may not be paths for this system.
- gdb_test "set solib-search-path [file dirname [lindex $args 0]]" "" ""
+ return $dest
}
#
-# gdb_load -- load a file into the debugger.
+# gdb_load -- load a file into the debugger. Specifying no file
+# defaults to the executable currently being debugged.
+# The return value is 0 for success, -1 for failure.
# Many files in config/*.exp override this procedure.
#
proc gdb_load { arg } {
- return [gdb_file_cmd $arg]
+ if { $arg != "" } {
+ return [gdb_file_cmd $arg]
+ }
+ return 0
}
# gdb_reload -- load a file into the target. Called before "running",
proc gdb_continue { function } {
global decimal
- return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"];
+ return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]
}
-proc default_gdb_init { args } {
+proc default_gdb_init { test_file_name } {
global gdb_wrapper_initialized
global gdb_wrapper_target
+ global gdb_test_file_name
global cleanfiles
+ global pf_prefix
set cleanfiles {}
- gdb_clear_suppressed;
+ gdb_clear_suppressed
+
+ set gdb_test_file_name [file rootname [file tail $test_file_name]]
# Make sure that the wrapper is rebuilt
# with the appropriate multilib option.
# Unlike most tests, we have a small number of tests that generate
# a very large amount of output. We therefore increase the expect
- # buffer size to be able to contain the entire test output.
- match_max -d 30000
+ # buffer size to be able to contain the entire test output. This
+ # is especially needed by gdb.base/info-macros.exp.
+ match_max -d 65536
# Also set this value for the currently running GDB.
match_max [match_max -d]
# We want to add the name of the TCL testcase to the PASS/FAIL messages.
- if { [llength $args] > 0 } {
- global pf_prefix
+ set pf_prefix "[file tail [file dirname $test_file_name]]/[file tail $test_file_name]:"
- set file [lindex $args 0];
-
- set pf_prefix "[file tail [file dirname $file]]/[file tail $file]:";
- }
- global gdb_prompt;
+ global gdb_prompt
if [target_info exists gdb_prompt] {
- set gdb_prompt [target_info gdb_prompt];
+ set gdb_prompt [target_info gdb_prompt]
} else {
set gdb_prompt "\\(gdb\\)"
}
}
}
+# Return a path using GDB_PARALLEL.
+# ARGS is a list of path elements to append to "$objdir/$GDB_PARALLEL".
+# GDB_PARALLEL must be defined, the caller must check.
+#
+# The default value for GDB_PARALLEL is, canonically, ".".
+# The catch is that tests don't expect an additional "./" in file paths so
+# omit any directory for the default case.
+# GDB_PARALLEL is written as "yes" for the default case in Makefile.in to mark
+# its special handling.
+
+proc make_gdb_parallel_path { args } {
+ global GDB_PARALLEL objdir
+ set joiner [list "file" "join" $objdir]
+ if { [info exists GDB_PARALLEL] && $GDB_PARALLEL != "yes" } {
+ lappend joiner $GDB_PARALLEL
+ }
+ set joiner [concat $joiner $args]
+ return [eval $joiner]
+}
+
+# Turn BASENAME into a full file name in the standard output
+# directory. It is ok if BASENAME is the empty string; in this case
+# the directory is returned.
+
+proc standard_output_file {basename} {
+ global objdir subdir gdb_test_file_name
+
+ set dir [make_gdb_parallel_path outputs $subdir $gdb_test_file_name]
+ file mkdir $dir
+ return [file join $dir $basename]
+}
+
+# Return the name of a file in our standard temporary directory.
+
+proc standard_temp_file {basename} {
+ # Since a particular runtest invocation is only executing a single test
+ # file at any given time, we can use the runtest pid to build the
+ # path of the temp directory.
+ set dir [make_gdb_parallel_path temp [pid]]
+ file mkdir $dir
+ return [file join $dir $basename]
+}
+
+# Set 'testfile', 'srcfile', and 'binfile'.
+#
+# ARGS is a list of source file specifications.
+# Without any arguments, the .exp file's base name is used to
+# compute the source file name. The ".c" extension is added in this case.
+# If ARGS is not empty, each entry is a source file specification.
+# If the specification starts with a ".", it is treated as a suffix
+# to append to the .exp file's base name.
+# If the specification is the empty string, it is treated as if it
+# were ".c".
+# Otherwise it is a file name.
+# The first file in the list is used to set the 'srcfile' global.
+# Each subsequent name is used to set 'srcfile2', 'srcfile3', etc.
+#
+# Most tests should call this without arguments.
+#
+# If a completely different binary file name is needed, then it
+# should be handled in the .exp file with a suitable comment.
+
+proc standard_testfile {args} {
+ global gdb_test_file_name
+ global subdir
+ global gdb_test_file_last_vars
+
+ # Outputs.
+ global testfile binfile
+
+ set testfile $gdb_test_file_name
+ set binfile [standard_output_file ${testfile}]
+
+ if {[llength $args] == 0} {
+ set args .c
+ }
+
+ # Unset our previous output variables.
+ # This can help catch hidden bugs.
+ if {[info exists gdb_test_file_last_vars]} {
+ foreach varname $gdb_test_file_last_vars {
+ global $varname
+ catch {unset $varname}
+ }
+ }
+ # 'executable' is often set by tests.
+ set gdb_test_file_last_vars {executable}
+
+ set suffix ""
+ foreach arg $args {
+ set varname srcfile$suffix
+ global $varname
+
+ # Handle an extension.
+ if {$arg == ""} {
+ set arg $testfile.c
+ } elseif {[string range $arg 0 0] == "."} {
+ set arg $testfile$arg
+ }
+
+ set $varname $arg
+ lappend gdb_test_file_last_vars $varname
+
+ if {$suffix == ""} {
+ set suffix 2
+ } else {
+ incr suffix
+ }
+ }
+}
+
# The default timeout used when testing GDB commands. We want to use
# the same timeout as the default dejagnu timeout, unless the user has
# already provided a specific value (probably through a site.exp file).
# if the banned variables and procedures are already traced.
set banned_traced 0
-proc gdb_init { args } {
+proc gdb_init { test_file_name } {
# Reset the timeout value to the default. This way, any testcase
# that changes the timeout value without resetting it cannot affect
# the timeout used in subsequent testcases.
global timeout
set timeout $gdb_test_timeout
+ if { [regexp ".*gdb\.reverse\/.*" $test_file_name]
+ && [target_info exists gdb_reverse_timeout] } {
+ set timeout [target_info gdb_reverse_timeout]
+ }
+
+ # If GDB_INOTIFY is given, check for writes to '.'. This is a
+ # debugging tool to help confirm that the test suite is
+ # parallel-safe. You need "inotifywait" from the
+ # inotify-tools package to use this.
+ global GDB_INOTIFY inotify_pid
+ if {[info exists GDB_INOTIFY] && ![info exists inotify_pid]} {
+ global outdir tool inotify_log_file
+
+ set exclusions {outputs temp gdb[.](log|sum) cache}
+ set exclusion_re ([join $exclusions |])
+
+ set inotify_log_file [standard_temp_file inotify.out]
+ set inotify_pid [exec inotifywait -r -m -e move,create,delete . \
+ --exclude $exclusion_re \
+ |& tee -a $outdir/$tool.log $inotify_log_file &]
+
+ # Wait for the watches; hopefully this is long enough.
+ sleep 2
+
+ # Clear the log so that we don't emit a warning the first time
+ # we check it.
+ set fd [open $inotify_log_file w]
+ close $fd
+ }
+
# Block writes to all banned variables, and invocation of all
# banned procedures...
global banned_variables
setenv TERM "vt100"
# Some tests (for example gdb.base/maint.exp) shell out from gdb to use
- # grep. Clear GREP_OPTIONS to make the behavoiur predictable,
+ # grep. Clear GREP_OPTIONS to make the behavior predictable,
# especially having color output turned on can cause tests to fail.
setenv GREP_OPTIONS ""
set gdbserver_reconnect_p 1
unset gdbserver_reconnect_p
- return [eval default_gdb_init $args];
+ return [default_gdb_init $test_file_name]
}
proc gdb_finish { } {
+ global gdbserver_reconnect_p
+ global gdb_prompt
global cleanfiles
# Exit first, so that the files are no longer in use.
-re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" {
set debug_format $expect_out(1,string)
verbose "debug format is $debug_format"
- return 1;
+ return 1
}
-re "No current source file.\r\n$gdb_prompt $" {
perror "get_debug_format used when no current source file"
- return 0;
+ return 0
}
-re "$gdb_prompt $" {
warning "couldn't check debug format (no valid response)."
- return 1;
+ return 1
}
timeout {
- warning "couldn't check debug format (timed out)."
- return 1;
+ warning "couldn't check debug format (timeout)."
+ return 1
}
}
}
# expected to fail, 0 otherwise (or if it is unknown). Must have
# previously called get_debug_format.
proc setup_xfail_format { format } {
- set ret [test_debug_format $format];
+ set ret [test_debug_format $format]
if {$ret} then {
setup_xfail "*-*-*"
}
- return $ret;
-}
-
-# Like setup_kfail, but only call setup_kfail conditionally if
-# istarget[TARGET] returns true.
-proc setup_kfail_for_target { PR target } {
- if { [istarget $target] } {
- setup_kfail $PR $target
- }
+ return $ret
}
# gdb_get_line_number TEXT [FILE]
return $found
}
-# gdb_continue_to_end:
-# The case where the target uses stubs has to be handled specially. If a
-# stub is used, we set a breakpoint at exit because we cannot rely on
-# exit() behavior of a remote target.
-#
+# Continue the program until it ends.
+#
# MSSG is the error message that gets printed. If not given, a
# default is used.
# COMMAND is the command to invoke. If not given, "continue" is
} else {
set extra ""
}
- if $use_gdb_stub {
+
+ # By default, we don't rely on exit() behavior of remote stubs --
+ # it's common for exit() to be implemented as a simple infinite
+ # loop, or a forced crash/reset. For native targets, by default, we
+ # assume process exit is reported as such. If a non-reliable target
+ # is used, we set a breakpoint at exit, and continue to that.
+ if { [target_info exists exit_is_reliable] } {
+ set exit_is_reliable [target_info exit_is_reliable]
+ } else {
+ set exit_is_reliable [expr ! $use_gdb_stub]
+ }
+
+ if { ! $exit_is_reliable } {
if {![gdb_breakpoint "exit"]} {
return 0
}
}
}
-# Print a message and return true if a test should be skipped
-# due to lack of floating point suport.
+# Return true if a test should be skipped due to lack of floating
+# point support or GDB can't fetch the contents from floating point
+# registers.
-proc gdb_skip_float_test { msg } {
+gdb_caching_proc gdb_skip_float_test {
if [target_info exists gdb,skip_float_tests] {
- verbose "Skipping test '$msg': no float tests.";
- return 1;
+ return 1
+ }
+
+ # There is an ARM kernel ptrace bug that hardware VFP registers
+ # are not updated after GDB ptrace set VFP registers. The bug
+ # was introduced by kernel commit 8130b9d7b9d858aa04ce67805e8951e3cb6e9b2f
+ # in 2012 and is fixed in e2dfb4b880146bfd4b6aa8e138c0205407cebbaf
+ # in May 2016. In other words, kernels older than 4.6.3, 4.4.14,
+ # 4.1.27, 3.18.36, and 3.14.73 have this bug.
+ # This kernel bug is detected by check how does GDB change the
+ # program result by changing one VFP register.
+ if { [istarget "arm*-*-linux*"] } {
+
+ set compile_flags {debug nowarnings }
+
+ # Set up, compile, and execute a test program having VFP
+ # operations.
+ set src [standard_temp_file arm_vfp[pid].c]
+ set exe [standard_temp_file arm_vfp[pid].x]
+
+ gdb_produce_source $src {
+ int main() {
+ double d = 4.0;
+ int ret;
+
+ asm ("vldr d0, [%0]" : : "r" (&d));
+ asm ("vldr d1, [%0]" : : "r" (&d));
+ asm (".global break_here\n"
+ "break_here:");
+ asm ("vcmp.f64 d0, d1\n"
+ "vmrs APSR_nzcv, fpscr\n"
+ "bne L_value_different\n"
+ "movs %0, #0\n"
+ "b L_end\n"
+ "L_value_different:\n"
+ "movs %0, #1\n"
+ "L_end:\n" : "=r" (ret) :);
+
+ /* Return $d0 != $d1. */
+ return ret;
+ }
+ }
+
+ verbose "compiling testfile $src" 2
+ set lines [gdb_compile $src $exe executable $compile_flags]
+ file delete $src
+
+ if ![string match "" $lines] then {
+ verbose "testfile compilation failed, returning 1" 2
+ return 0
+ }
+
+ # No error message, compilation succeeded so now run it via gdb.
+ # Run the test up to 5 times to detect whether ptrace can
+ # correctly update VFP registers or not.
+ set skip_vfp_test 0
+ for {set i 0} {$i < 5} {incr i} {
+ global gdb_prompt srcdir subdir
+
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load "$exe"
+
+ runto_main
+ gdb_test "break *break_here"
+ gdb_continue_to_breakpoint "break_here"
+
+ # Modify $d0 to a different value, so the exit code should
+ # be 1.
+ gdb_test "set \$d0 = 5.0"
+
+ set test "continue to exit"
+ gdb_test_multiple "continue" "$test" {
+ -re "exited with code 01.*$gdb_prompt $" {
+ }
+ -re "exited normally.*$gdb_prompt $" {
+ # However, the exit code is 0. That means something
+ # wrong in setting VFP registers.
+ set skip_vfp_test 1
+ break
+ }
+ }
+ }
+
+ gdb_exit
+ remote_file build delete $exe
+
+ return $skip_vfp_test
}
- return 0;
+ return 0
}
# Print a message and return true if a test should be skipped
# due to lack of stdio support.
-proc gdb_skip_stdio_test { msg } {
- if [target_info exists gdb,noinferiorio] {
- verbose "Skipping test '$msg': no inferior i/o.";
- return 1;
+proc gdb_skip_stdio_test { msg } {
+ if [target_info exists gdb,noinferiorio] {
+ verbose "Skipping test '$msg': no inferior i/o."
+ return 1
+ }
+ return 0
+}
+
+proc gdb_skip_bogus_test { msg } {
+ return 0
+}
+
+# Return true if a test should be skipped due to lack of XML support
+# in the host GDB.
+# NOTE: This must be called while gdb is *not* running.
+
+gdb_caching_proc gdb_skip_xml_test {
+ global gdb_spawn_id
+ global gdb_prompt
+ global srcdir
+
+ if { [info exists gdb_spawn_id] } {
+ error "GDB must not be running in gdb_skip_xml_tests."
+ }
+
+ set xml_file [gdb_remote_download host "${srcdir}/gdb.xml/trivial.xml"]
+
+ gdb_start
+ set xml_missing 0
+ gdb_test_multiple "set tdesc filename $xml_file" "" {
+ -re ".*XML support was disabled at compile time.*$gdb_prompt $" {
+ set xml_missing 1
+ }
+ -re ".*$gdb_prompt $" { }
+ }
+ gdb_exit
+ return $xml_missing
+}
+
+# Return true if argv[0] is available.
+
+gdb_caching_proc gdb_has_argv0 {
+ set result 0
+
+ # Set up, compile, and execute a test program to check whether
+ # argv[0] is available.
+ set src [standard_temp_file has_argv0[pid].c]
+ set exe [standard_temp_file has_argv0[pid].x]
+
+ gdb_produce_source $src {
+ int main (int argc, char **argv) {
+ return 0;
+ }
+ }
+
+ gdb_compile $src $exe executable {debug}
+
+ # Helper proc.
+ proc gdb_has_argv0_1 { exe } {
+ global srcdir subdir
+ global gdb_prompt hex
+
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load "$exe"
+
+ # Set breakpoint on main.
+ gdb_test_multiple "break main" "break main" {
+ -re "Breakpoint.*${gdb_prompt} $" {
+ }
+ -re "${gdb_prompt} $" {
+ return 0
+ }
+ }
+
+ # Run to main.
+ gdb_run_cmd
+ gdb_test_multiple "" "run to main" {
+ -re "Breakpoint.*${gdb_prompt} $" {
+ }
+ -re "${gdb_prompt} $" {
+ return 0
+ }
+ }
+
+ set old_elements "200"
+ set test "show print elements"
+ gdb_test_multiple $test $test {
+ -re "Limit on string chars or array elements to print is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
+ set old_elements $expect_out(1,string)
+ }
+ }
+ set old_repeats "200"
+ set test "show print repeats"
+ gdb_test_multiple $test $test {
+ -re "Threshold for repeated print elements is (\[^\r\n\]+)\\.\r\n$gdb_prompt $" {
+ set old_repeats $expect_out(1,string)
+ }
+ }
+ gdb_test_no_output "set print elements unlimited" ""
+ gdb_test_no_output "set print repeats unlimited" ""
+
+ set retval 0
+ # Check whether argc is 1.
+ gdb_test_multiple "p argc" "p argc" {
+ -re " = 1\r\n${gdb_prompt} $" {
+
+ gdb_test_multiple "p argv\[0\]" "p argv\[0\]" {
+ -re " = $hex \".*[file tail $exe]\"\r\n${gdb_prompt} $" {
+ set retval 1
+ }
+ -re "${gdb_prompt} $" {
+ }
+ }
+ }
+ -re "${gdb_prompt} $" {
+ }
+ }
+
+ gdb_test_no_output "set print elements $old_elements" ""
+ gdb_test_no_output "set print repeats $old_repeats" ""
+
+ return $retval
}
- return 0;
-}
-
-proc gdb_skip_bogus_test { msg } {
- return 0;
-}
-# Return true if a test should be skipped due to lack of XML support
-# in the host GDB.
-# NOTE: This must be called while gdb is *not* running.
+ set result [gdb_has_argv0_1 $exe]
-proc gdb_skip_xml_test { } {
- global gdb_prompt
- global srcdir
- global xml_missing_cached
+ gdb_exit
+ file delete $src
+ file delete $exe
- if {[info exists xml_missing_cached]} {
- return $xml_missing_cached
+ if { !$result
+ && ([istarget *-*-linux*]
+ || [istarget *-*-freebsd*] || [istarget *-*-kfreebsd*]
+ || [istarget *-*-netbsd*] || [istarget *-*-knetbsd*]
+ || [istarget *-*-openbsd*]
+ || [istarget *-*-darwin*]
+ || [istarget *-*-solaris*]
+ || [istarget *-*-aix*]
+ || [istarget *-*-gnu*]
+ || [istarget *-*-cygwin*] || [istarget *-*-mingw32*]
+ || [istarget *-*-*djgpp*] || [istarget *-*-go32*]
+ || [istarget *-wince-pe] || [istarget *-*-mingw32ce*]
+ || [istarget *-*-symbianelf*]
+ || [istarget *-*-osf*]
+ || [istarget *-*-dicos*]
+ || [istarget *-*-nto*]
+ || [istarget *-*-*vms*]
+ || [istarget *-*-lynx*178]) } {
+ fail "argv\[0\] should be available on this target"
}
- gdb_start
- set xml_missing_cached 0
- gdb_test_multiple "set tdesc filename ${srcdir}/gdb.xml/trivial.xml" "" {
- -re ".*XML support was disabled at compile time.*$gdb_prompt $" {
- set xml_missing_cached 1
- }
- -re ".*$gdb_prompt $" { }
- }
- gdb_exit
- return $xml_missing_cached
+ return $result
}
# Note: the procedure gdb_gnu_strip_debug will produce an executable called
# foo.debug --> foo's debug info
# foo --> like foo, but with a new .gnu_debuglink section pointing to foo.debug.
+# Fetch the build id from the file.
+# Returns "" if there is none.
+
+proc get_build_id { filename } {
+ if { ([istarget "*-*-mingw*"]
+ || [istarget *-*-cygwin*]) } {
+ set objdump_program [gdb_find_objdump]
+ set result [catch {set data [exec $objdump_program -p $filename | grep signature | cut "-d " -f4]} output]
+ verbose "result is $result"
+ verbose "output is $output"
+ if {$result == 1} {
+ return ""
+ }
+ return $data
+ } else {
+ set tmp [standard_output_file "${filename}-tmp"]
+ set objcopy_program [gdb_find_objcopy]
+ set result [catch "exec $objcopy_program -j .note.gnu.build-id -O binary $filename $tmp" output]
+ verbose "result is $result"
+ verbose "output is $output"
+ if {$result == 1} {
+ return ""
+ }
+ set fi [open $tmp]
+ fconfigure $fi -translation binary
+ # Skip the NOTE header.
+ read $fi 16
+ set data [read $fi]
+ close $fi
+ file delete $tmp
+ if ![string compare $data ""] then {
+ return ""
+ }
+ # Convert it to hex.
+ binary scan $data H* data
+ return $data
+ }
+}
+
# Return the build-id hex string (usually 160 bits as 40 hex characters)
# converted to the form: .build-id/ab/cdef1234...89.debug
# Return "" if no build-id found.
-proc build_id_debug_filename_get { exec } {
- set tmp "${exec}-tmp"
- set objcopy_program [transform objcopy]
-
- set result [catch "exec $objcopy_program -j .note.gnu.build-id -O binary $exec $tmp" output]
- verbose "result is $result"
- verbose "output is $output"
- if {$result == 1} {
+proc build_id_debug_filename_get { filename } {
+ set data [get_build_id $filename]
+ if { $data == "" } {
return ""
}
- set fi [open $tmp]
- fconfigure $fi -translation binary
- # Skip the NOTE header.
- read $fi 16
- set data [read $fi]
- close $fi
- file delete $tmp
- if ![string compare $data ""] then {
- return ""
- }
- # Convert it to hex.
- binary scan $data H* data
regsub {^..} $data {\0/} data
- return ".build-id/${data}.debug";
+ return ".build-id/${data}.debug"
}
# Create stripped files for DEST, replacing it. If ARGS is passed, it is a
set debug_file "${dest}.debug"
set strip_to_file_program [transform strip]
- set objcopy_program [transform objcopy]
+ set objcopy_program [gdb_find_objcopy]
set debug_link [file tail $debug_file]
set stripped_file "${dest}.stripped"
# are regular expressions that should match the beginning of output,
# before the list of commands in that class. The presence of
# command list and standard epilogue will be tested automatically.
+# Notice that the '[' and ']' characters don't need to be escaped for strings
+# wrapped in {} braces.
proc test_class_help { command_class expected_initial_lines args } {
set l_stock_body {
- "List of commands\:.*\[\r\n\]+"
- "Type \"help\" followed by command name for full documentation\.\[\r\n\]+"
- "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n\]+"
+ "List of commands\:.*[\r\n]+"
+ "Type \"help\" followed by command name for full documentation\.[\r\n]+"
+ "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n]+"
"Command name abbreviations are allowed if unambiguous\."
}
set l_entire_body [concat $expected_initial_lines $l_stock_body]
}
}
-# Build executable named EXECUTABLE, from SOURCES. If SOURCES are not
-# provided, uses $EXECUTABLE.c. The TESTNAME paramer is the name of test
-# to pass to untested, if something is wrong. OPTIONS are passed
-# to gdb_compile directly.
-proc build_executable { testname executable {sources ""} {options {debug}} } {
-
- global objdir
+# Build executable named EXECUTABLE from specifications that allow
+# different options to be passed to different sub-compilations.
+# TESTNAME is the name of the test; this is passed to 'untested' if
+# something fails.
+# OPTIONS is passed to the final link, using gdb_compile. If OPTIONS
+# contains the option "pthreads", then gdb_compile_pthreads is used.
+# ARGS is a flat list of source specifications, of the form:
+# { SOURCE1 OPTIONS1 [ SOURCE2 OPTIONS2 ]... }
+# Each SOURCE is compiled to an object file using its OPTIONS,
+# using gdb_compile.
+# Returns 0 on success, -1 on failure.
+proc build_executable_from_specs {testname executable options args} {
global subdir
global srcdir
- if {[llength $sources]==0} {
- set sources ${executable}.c
- }
- set binfile ${objdir}/${subdir}/${executable}
+ set binfile [standard_output_file $executable]
- set objects {}
- for {set i 0} "\$i<[llength $sources]" {incr i} {
- set s [lindex $sources $i]
- if { [gdb_compile "${srcdir}/${subdir}/${s}" "${binfile}${i}.o" object $options] != "" } {
- untested $testname
- return -1
- }
- lappend objects "${binfile}${i}.o"
+ set info_options ""
+ if { [lsearch -exact $options "c++"] >= 0 } {
+ set info_options "c++"
}
-
- if { [gdb_compile $objects "${binfile}" executable $options] != "" } {
- untested $testname
+ if [get_compiler_info ${info_options}] {
return -1
}
- set info_options ""
- if { [lsearch -exact $options "c++"] >= 0 } {
- set info_options "c++"
+ set func gdb_compile
+ set func_index [lsearch -regexp $options {^(pthreads|shlib|shlib_pthreads)$}]
+ if {$func_index != -1} {
+ set func "${func}_[lindex $options $func_index]"
+ }
+
+ # gdb_compile_shlib and gdb_compile_shlib_pthreads do not use the 3rd
+ # parameter. They also requires $sources while gdb_compile and
+ # gdb_compile_pthreads require $objects. Moreover they ignore any options.
+ if [string match gdb_compile_shlib* $func] {
+ set sources_path {}
+ foreach {s local_options} $args {
+ if { [regexp "^/" "$s"] } then {
+ lappend sources_path "$s"
+ } else {
+ lappend sources_path "$srcdir/$subdir/$s"
+ }
+ }
+ set ret [$func $sources_path "${binfile}" $options]
+ } elseif {[lsearch -exact $options rust] != -1} {
+ set sources_path {}
+ foreach {s local_options} $args {
+ if { [regexp "^/" "$s"] } then {
+ lappend sources_path "$s"
+ } else {
+ lappend sources_path "$srcdir/$subdir/$s"
+ }
+ }
+ set ret [gdb_compile_rust $sources_path "${binfile}" $options]
+ } else {
+ set objects {}
+ set i 0
+ foreach {s local_options} $args {
+ if { ! [regexp "^/" "$s"] } then {
+ set s "$srcdir/$subdir/$s"
+ }
+ if { [gdb_compile "${s}" "${binfile}${i}.o" object $local_options] != "" } {
+ untested $testname
+ return -1
+ }
+ lappend objects "${binfile}${i}.o"
+ incr i
+ }
+ set ret [$func $objects "${binfile}" executable $options]
}
- if [get_compiler_info ${binfile} ${info_options}] {
+ if { $ret != "" } {
+ untested $testname
return -1
}
+
return 0
}
-# Starts fresh GDB binary and loads EXECUTABLE into GDB. EXECUTABLE is
-# the name of binary in ${objdir}/${subdir}.
-proc clean_restart { executable } {
+# Build executable named EXECUTABLE, from SOURCES. If SOURCES are not
+# provided, uses $EXECUTABLE.c. The TESTNAME paramer is the name of test
+# to pass to untested, if something is wrong. OPTIONS are passed
+# to gdb_compile directly.
+proc build_executable { testname executable {sources ""} {options {debug}} } {
+ if {[llength $sources]==0} {
+ set sources ${executable}.c
+ }
+
+ set arglist [list $testname $executable $options]
+ foreach source $sources {
+ lappend arglist $source $options
+ }
+
+ return [eval build_executable_from_specs $arglist]
+}
+
+# Starts fresh GDB binary and loads an optional executable into GDB.
+# Usage: clean_restart [executable]
+# EXECUTABLE is the basename of the binary.
+
+proc clean_restart { args } {
global srcdir
- global objdir
global subdir
- set binfile ${objdir}/${subdir}/${executable}
+
+ if { [llength $args] > 1 } {
+ error "bad number of args: [llength $args]"
+ }
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
- gdb_load ${binfile}
+
+ if { [llength $args] >= 1 } {
+ set executable [lindex $args 0]
+ set binfile [standard_output_file ${executable}]
+ gdb_load ${binfile}
+ }
+}
+
+# Prepares for testing by calling build_executable_full, then
+# clean_restart.
+# TESTNAME is the name of the test.
+# Each element in ARGS is a list of the form
+# { EXECUTABLE OPTIONS SOURCE_SPEC... }
+# These are passed to build_executable_from_specs, which see.
+# The last EXECUTABLE is passed to clean_restart.
+# Returns 0 on success, non-zero on failure.
+proc prepare_for_testing_full {testname args} {
+ foreach spec $args {
+ if {[eval build_executable_from_specs [list $testname] $spec] == -1} {
+ return -1
+ }
+ set executable [lindex $spec 0]
+ }
+ clean_restart $executable
+ return 0
}
# Prepares for testing, by calling build_executable, and then clean_restart.
return 0
}
-proc get_valueof { fmt exp default } {
+# Retrieve the value of EXP in the inferior, represented in format
+# specified in FMT (using "printFMT"). DEFAULT is used as fallback if
+# print fails. TEST is the test message to use. It can be omitted,
+# in which case a test message is built from EXP.
+
+proc get_valueof { fmt exp default {test ""} } {
global gdb_prompt
- set test "get valueof \"${exp}\""
+ if {$test == "" } {
+ set test "get valueof \"${exp}\""
+ }
+
set val ${default}
gdb_test_multiple "print${fmt} ${exp}" "$test" {
- -re "\\$\[0-9\]* = (.*)\[\r\n\]*$gdb_prompt $" {
+ -re "\\$\[0-9\]* = (\[^\r\n\]*)\[\r\n\]*$gdb_prompt $" {
set val $expect_out(1,string)
pass "$test ($val)"
}
return ${val}
}
-proc get_integer_valueof { exp default } {
+# Retrieve the value of EXP in the inferior, as a signed decimal value
+# (using "print /d"). DEFAULT is used as fallback if print fails.
+# TEST is the test message to use. It can be omitted, in which case
+# a test message is built from EXP.
+
+proc get_integer_valueof { exp default {test ""} } {
global gdb_prompt
- set test "get integer valueof \"${exp}\""
+ if {$test == ""} {
+ set test "get integer valueof \"${exp}\""
+ }
+
set val ${default}
gdb_test_multiple "print /d ${exp}" "$test" {
-re "\\$\[0-9\]* = (\[-\]*\[0-9\]*).*$gdb_prompt $" {
set val $expect_out(1,string)
- pass "$test ($val)"
+ pass "$test"
}
timeout {
fail "$test (timeout)"
return ${val}
}
-proc get_hexadecimal_valueof { exp default } {
+# Retrieve the value of EXP in the inferior, as an hexadecimal value
+# (using "print /x"). DEFAULT is used as fallback if print fails.
+# TEST is the test message to use. It can be omitted, in which case
+# a test message is built from EXP.
+
+proc get_hexadecimal_valueof { exp default {test ""} } {
global gdb_prompt
- send_gdb "print /x ${exp}\n"
- set test "get hexadecimal valueof \"${exp}\""
- gdb_expect {
+
+ if {$test == ""} {
+ set test "get hexadecimal valueof \"${exp}\""
+ }
+
+ set val ${default}
+ gdb_test_multiple "print /x ${exp}" $test {
-re "\\$\[0-9\]* = (0x\[0-9a-zA-Z\]+).*$gdb_prompt $" {
set val $expect_out(1,string)
pass "$test"
}
- timeout {
- set val ${default}
- fail "$test (timeout)"
- }
}
return ${val}
}
-proc get_sizeof { type default } {
- return [get_integer_valueof "sizeof (${type})" $default]
+# Retrieve the size of TYPE in the inferior, as a decimal value. DEFAULT
+# is used as fallback if print fails. TEST is the test message to use.
+# It can be omitted, in which case a test message is 'sizeof (TYPE)'.
+
+proc get_sizeof { type default {test ""} } {
+ return [get_integer_valueof "sizeof (${type})" $default $test]
+}
+
+proc get_target_charset { } {
+ global gdb_prompt
+
+ gdb_test_multiple "show target-charset" "" {
+ -re "The target character set is \"auto; currently (\[^\"\]*)\".*$gdb_prompt $" {
+ return $expect_out(1,string)
+ }
+ -re "The target character set is \"(\[^\"\]*)\".*$gdb_prompt $" {
+ return $expect_out(1,string)
+ }
+ }
+
+ # Pick a reasonable default.
+ warning "Unable to read target-charset."
+ return "UTF-8"
+}
+
+# Get the address of VAR.
+
+proc get_var_address { var } {
+ global gdb_prompt hex
+
+ # Match output like:
+ # $1 = (int *) 0x0
+ # $5 = (int (*)()) 0
+ # $6 = (int (*)()) 0x24 <function_bar>
+
+ gdb_test_multiple "print &${var}" "get address of ${var}" {
+ -re "\\\$\[0-9\]+ = \\(.*\\) (0|$hex)( <${var}>)?\[\r\n\]+${gdb_prompt} $"
+ {
+ pass "get address of ${var}"
+ if { $expect_out(1,string) == "0" } {
+ return "0x0"
+ } else {
+ return $expect_out(1,string)
+ }
+ }
+ }
+ return ""
}
# Get the current value for remotetimeout and return it.
gdb_test_multiple "show remotetimeout" "" {
-re "Timeout limit to wait for target to respond is ($decimal).*$gdb_prompt $" {
- return $expect_out(1,string);
+ return $expect_out(1,string)
}
}
}
}
+# Get the target's current endianness and return it.
+proc get_endianness { } {
+ global gdb_prompt
+
+ gdb_test_multiple "show endian" "determine endianness" {
+ -re ".* (little|big) endian.*\r\n$gdb_prompt $" {
+ # Pass silently.
+ return $expect_out(1,string)
+ }
+ }
+ return "little"
+}
+
+# ROOT and FULL are file names. Returns the relative path from ROOT
+# to FULL. Note that FULL must be in a subdirectory of ROOT.
+# For example, given ROOT = /usr/bin and FULL = /usr/bin/ls, this
+# will return "ls".
+
+proc relative_filename {root full} {
+ set root_split [file split $root]
+ set full_split [file split $full]
+
+ set len [llength $root_split]
+
+ if {[eval file join $root_split]
+ != [eval file join [lrange $full_split 0 [expr {$len - 1}]]]} {
+ error "$full not a subdir of $root"
+ }
+
+ return [eval file join [lrange $full_split $len end]]
+}
+
# Log gdb command line and script if requested.
if {[info exists TRANSCRIPT]} {
rename send_gdb real_send_gdb
}
}
+# If GDB_PARALLEL exists, then set up the parallel-mode directories.
+if {[info exists GDB_PARALLEL]} {
+ if {[is_remote host]} {
+ unset GDB_PARALLEL
+ } else {
+ file mkdir \
+ [make_gdb_parallel_path outputs] \
+ [make_gdb_parallel_path temp] \
+ [make_gdb_parallel_path cache]
+ }
+}
+
proc core_find {binfile {deletefiles {}} {arg ""}} {
global objdir subdir
# could have many core files lying around, and it may be difficult to
# tell which one is ours, so let's run the program in a subdirectory.
set found 0
- set coredir "${objdir}/${subdir}/coredir.[getpid]"
+ set coredir [standard_output_file coredir.[getpid]]
file mkdir $coredir
catch "system \"(cd ${coredir}; ulimit -c unlimited; ${binfile} ${arg}; true) >/dev/null 2>&1\""
# remote_exec host "${binfile}"
return $destcore
}
-# gdb_target_symbol_prefix_flags returns a string that can be added
-# to gdb_compile options to define SYMBOL_PREFIX macro value
-# symbol_prefix_flags returns a string that can be added
-# for targets that use underscore as symbol prefix.
-# TODO: find out automatically if the target needs this.
+# gdb_target_symbol_prefix compiles a test program and then examines
+# the output from objdump to determine the prefix (such as underscore)
+# for linker symbol prefixes.
+
+gdb_caching_proc gdb_target_symbol_prefix {
+ # Set up and compile a simple test program...
+ set src [standard_temp_file main[pid].c]
+ set exe [standard_temp_file main[pid].x]
+
+ gdb_produce_source $src {
+ int main() {
+ return 0;
+ }
+ }
+
+ verbose "compiling testfile $src" 2
+ set compile_flags {debug nowarnings quiet}
+ set lines [gdb_compile $src $exe executable $compile_flags]
+
+ set prefix ""
+
+ if ![string match "" $lines] then {
+ verbose "gdb_target_symbol_prefix: testfile compilation failed, returning null prefix" 2
+ } else {
+ set objdump_program [gdb_find_objdump]
+ set result [catch "exec $objdump_program --syms $exe" output]
+
+ if { $result == 0 \
+ && ![regexp -lineanchor \
+ { ([^ a-zA-Z0-9]*)main$} $output dummy prefix] } {
+ verbose "gdb_target_symbol_prefix: Could not find main in objdump output; returning null prefix" 2
+ }
+ }
+
+ file delete $src
+ file delete $exe
+
+ return $prefix
+}
+
+# gdb_target_symbol returns the provided symbol with the correct prefix
+# prepended. (See gdb_target_symbol_prefix, above.)
+
+proc gdb_target_symbol { symbol } {
+ set prefix [gdb_target_symbol_prefix]
+ return "${prefix}${symbol}"
+}
+
+# gdb_target_symbol_prefix_flags_asm returns a string that can be
+# added to gdb_compile options to define the C-preprocessor macro
+# SYMBOL_PREFIX with a value that can be prepended to symbols
+# for targets which require a prefix, such as underscore.
+#
+# This version (_asm) defines the prefix without double quotes
+# surrounding the prefix. It is used to define the macro
+# SYMBOL_PREFIX for assembly language files. Another version, below,
+# is used for symbols in inline assembler in C/C++ files.
+#
+# The lack of quotes in this version (_asm) makes it possible to
+# define supporting macros in the .S file. (The version which
+# uses quotes for the prefix won't work for such files since it's
+# impossible to define a quote-stripping macro in C.)
+#
+# It's possible to use this version (_asm) for C/C++ source files too,
+# but a string is usually required in such files; providing a version
+# (no _asm) which encloses the prefix with double quotes makes it
+# somewhat easier to define the supporting macros in the test case.
+
+proc gdb_target_symbol_prefix_flags_asm {} {
+ set prefix [gdb_target_symbol_prefix]
+ if {$prefix ne ""} {
+ return "additional_flags=-DSYMBOL_PREFIX=$prefix"
+ } else {
+ return "";
+ }
+}
+
+# gdb_target_symbol_prefix_flags returns the same string as
+# gdb_target_symbol_prefix_flags_asm, above, but with the prefix
+# enclosed in double quotes if there is a prefix.
+#
+# See the comment for gdb_target_symbol_prefix_flags_asm for an
+# extended discussion.
proc gdb_target_symbol_prefix_flags {} {
- if { [istarget "*-*-cygwin*"] || [istarget "i?86-*-mingw*"]
- || [istarget "*-*-msdosdjgpp*"] || [istarget "*-*-go32*"] } {
- return "additional_flags=-DSYMBOL_PREFIX=\"_\""
+ set prefix [gdb_target_symbol_prefix]
+ if {$prefix ne ""} {
+ return "additional_flags=-DSYMBOL_PREFIX=\"$prefix\""
} else {
- return ""
+ return "";
+ }
+}
+
+# A wrapper for 'remote_exec host' that passes or fails a test.
+# Returns 0 if all went well, nonzero on failure.
+# TEST is the name of the test, other arguments are as for remote_exec.
+
+proc run_on_host { test program args } {
+ verbose -log "run_on_host: $program $args"
+ # remote_exec doesn't work properly if the output is set but the
+ # input is the empty string -- so replace an empty input with
+ # /dev/null.
+ if {[llength $args] > 1 && [lindex $args 1] == ""} {
+ set args [lreplace $args 1 1 "/dev/null"]
+ }
+ set result [eval remote_exec host [list $program] $args]
+ verbose "result is $result"
+ set status [lindex $result 0]
+ set output [lindex $result 1]
+ if {$status == 0} {
+ pass $test
+ return 0
+ } else {
+ verbose -log "run_on_host failed: $output"
+ fail $test
+ return -1
+ }
+}
+
+# Return non-zero if "board_info debug_flags" mentions Fission.
+# http://gcc.gnu.org/wiki/DebugFission
+# Fission doesn't support everything yet.
+# This supports working around bug 15954.
+
+proc using_fission { } {
+ set debug_flags [board_info [target_info name] debug_flags]
+ return [regexp -- "-gsplit-dwarf" $debug_flags]
+}
+
+# Search the caller's ARGS list and set variables according to the list of
+# valid options described by ARGSET.
+#
+# The first member of each one- or two-element list in ARGSET defines the
+# name of a variable that will be added to the caller's scope.
+#
+# If only one element is given to describe an option, it the value is
+# 0 if the option is not present in (the caller's) ARGS or 1 if
+# it is.
+#
+# If two elements are given, the second element is the default value of
+# the variable. This is then overwritten if the option exists in ARGS.
+#
+# Any parse_args elements in (the caller's) ARGS will be removed, leaving
+# any optional components.
+
+# Example:
+# proc myproc {foo args} {
+# parse_args {{bar} {baz "abc"} {qux}}
+# # ...
+# }
+# myproc ABC -bar -baz DEF peanut butter
+# will define the following variables in myproc:
+# foo (=ABC), bar (=1), baz (=DEF), and qux (=0)
+# args will be the list {peanut butter}
+
+proc parse_args { argset } {
+ upvar args args
+
+ foreach argument $argset {
+ if {[llength $argument] == 1} {
+ # No default specified, so we assume that we should set
+ # the value to 1 if the arg is present and 0 if it's not.
+ # It is assumed that no value is given with the argument.
+ set result [lsearch -exact $args "-$argument"]
+ if {$result != -1} then {
+ uplevel 1 [list set $argument 1]
+ set args [lreplace $args $result $result]
+ } else {
+ uplevel 1 [list set $argument 0]
+ }
+ } elseif {[llength $argument] == 2} {
+ # There are two items in the argument. The second is a
+ # default value to use if the item is not present.
+ # Otherwise, the variable is set to whatever is provided
+ # after the item in the args.
+ set arg [lindex $argument 0]
+ set result [lsearch -exact $args "-[lindex $arg 0]"]
+ if {$result != -1} then {
+ uplevel 1 [list set $arg [lindex $args [expr $result+1]]]
+ set args [lreplace $args $result [expr $result+1]]
+ } else {
+ uplevel 1 [list set $arg [lindex $argument 1]]
+ }
+ } else {
+ error "Badly formatted argument \"$argument\" in argument set"
+ }
+ }
+
+ # The remaining args should be checked to see that they match the
+ # number of items expected to be passed into the procedure...
+}
+
+# Capture the output of COMMAND in a string ignoring PREFIX (a regexp);
+# return that string.
+
+proc capture_command_output { command prefix } {
+ global gdb_prompt
+ global expect_out
+
+ set output_string ""
+ gdb_test_multiple "$command" "capture_command_output for $command" {
+ -re "[string_to_regexp ${command}]\[\r\n\]+${prefix}(.*)\[\r\n\]+$gdb_prompt $" {
+ set output_string $expect_out(1,string)
+ }
+ }
+ return $output_string
+}
+
+# A convenience function that joins all the arguments together, with a
+# regexp that matches exactly one end of line in between each argument.
+# This function is ideal to write the expected output of a GDB command
+# that generates more than a couple of lines, as this allows us to write
+# each line as a separate string, which is easier to read by a human
+# being.
+
+proc multi_line { args } {
+ return [join $args "\r\n"]
+}
+
+# Similar to the above, but while multi_line is meant to be used to
+# match GDB output, this one is meant to be used to build strings to
+# send as GDB input.
+
+proc multi_line_input { args } {
+ return [join $args "\n"]
+}
+
+# Return the version of the DejaGnu framework.
+#
+# The return value is a list containing the major, minor and patch version
+# numbers. If the version does not contain a minor or patch number, they will
+# be set to 0. For example:
+#
+# 1.6 -> {1 6 0}
+# 1.6.1 -> {1 6 1}
+# 2 -> {2 0 0}
+
+proc dejagnu_version { } {
+ # The frame_version variable is defined by DejaGnu, in runtest.exp.
+ global frame_version
+
+ verbose -log "DejaGnu version: $frame_version"
+ verbose -log "Expect version: [exp_version]"
+ verbose -log "Tcl version: [info tclversion]"
+
+ set dg_ver [split $frame_version .]
+
+ while { [llength $dg_ver] < 3 } {
+ lappend dg_ver 0
+ }
+
+ return $dg_ver
+}
+
+# Define user-defined command COMMAND using the COMMAND_LIST as the
+# command's definition. The terminating "end" is added automatically.
+
+proc gdb_define_cmd {command command_list} {
+ global gdb_prompt
+
+ set input [multi_line_input {*}$command_list "end"]
+ set test "define $command"
+
+ gdb_test_multiple "define $command" $test {
+ -re "End with" {
+ gdb_test_multiple $input $test {
+ -re "\r\n$gdb_prompt " {
+ }
+ }
+ }
}
}
projects / deliverable / binutils-gdb.git / blobdiff