-# Copyright 1992-2018 Free Software Foundation, Inc.
+# Copyright 1992-2020 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
exit 2
}
+# List of procs to run in gdb_finish.
+set gdb_finish_hooks [list]
+
+# Variable in which we keep track of globals that are allowed to be live
+# across test-cases.
+array set gdb_persistent_globals {}
+
+# Mark variable names in ARG as a persistent global, and declare them as
+# global in the calling context. Can be used to rewrite "global var_a var_b"
+# into "gdb_persistent_global var_a var_b".
+proc gdb_persistent_global { args } {
+ global gdb_persistent_globals
+ foreach varname $args {
+ uplevel 1 global $varname
+ set gdb_persistent_globals($varname) 1
+ }
+}
+
+# Mark variable names in ARG as a persistent global.
+proc gdb_persistent_global_no_decl { args } {
+ global gdb_persistent_globals
+ foreach varname $args {
+ set gdb_persistent_globals($varname) 1
+ }
+}
+
+# Override proc load_lib.
+rename load_lib saved_load_lib
+# Run the runtest version of load_lib, and mark all variables that were
+# created by this call as persistent.
+proc load_lib { file } {
+ array set known_global {}
+ foreach varname [info globals] {
+ set known_globals($varname) 1
+ }
+
+ set code [catch "saved_load_lib $file" result]
+
+ foreach varname [info globals] {
+ if { ![info exists known_globals($varname)] } {
+ gdb_persistent_global_no_decl $varname
+ }
+ }
+
+ if {$code == 1} {
+ global errorInfo errorCode
+ return -code error -errorinfo $errorInfo -errorcode $errorCode $result
+ } elseif {$code > 1} {
+ return -code $code $result
+ }
+
+ return $result
+}
+
load_lib libgloss.exp
load_lib cache.exp
load_lib gdb-utils.exp
load_lib memory.exp
+load_lib check-test-names.exp
global GDB
set octal "\[0-7\]+"
-set inferior_exited_re "(\\\[Inferior \[0-9\]+ \\(.*\\) exited)"
+set inferior_exited_re "(?:\\\[Inferior \[0-9\]+ \\(\[^\n\r\]*\\) exited)"
# A regular expression that matches a value history number.
# E.g., $1, $2, etc.
#
proc gdb_unload {} {
- global verbose
global GDB
global gdb_prompt
send_gdb "file\n"
-re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue }
-re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue }
-re "A program is being debugged already.*Are you sure you want to change the file.*y or n. $" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
exp_continue
}
-re "Discard symbol table from .*y or n.*$" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
exp_continue
}
-re "$gdb_prompt $" {}
set deleted 0
gdb_test_multiple "delete breakpoints" "$msg" {
-re "Delete all breakpoints.*y or n.*$" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
exp_continue
}
-re "$gdb_prompt $" {
# Generic run command.
#
+# Return 0 if we could start the program, -1 if we could not.
+#
# The second pattern below matches up to the first newline *only*.
# Using ``.*$'' could swallow up output that we attempt to match
# elsewhere.
#
+# INFERIOR_ARGS is passed as arguments to the start command, so may contain
+# inferior arguments.
+#
# N.B. This function does not wait for gdb to return to the prompt,
# that is the caller's responsibility.
-proc gdb_run_cmd {args} {
+proc gdb_run_cmd { {inferior_args {}} } {
global gdb_prompt use_gdb_stub
foreach command [gdb_init_commands] {
if $use_gdb_stub {
if [target_info exists gdb,do_reload_on_run] {
- if { [gdb_reload] != 0 } {
- return
+ if { [gdb_reload $inferior_args] != 0 } {
+ return -1
}
send_gdb "continue\n"
gdb_expect 60 {
-re "Continu\[^\r\n\]*\[\r\n\]" {}
default {}
}
- return
+ return 0
}
if [target_info exists gdb,start_symbol] {
# clever and not send a command when it has failed.
if [expr $start_attempt > 3] {
perror "Jump to start() failed (retry count exceeded)"
- return
+ return -1
}
set start_attempt [expr $start_attempt + 1]
gdb_expect 30 {
}
-re "No symbol \"_start\" in current.*$gdb_prompt $" {
perror "Can't find start symbol to run in gdb_run"
- return
+ return -1
}
-re "No symbol \"start\" in current.*$gdb_prompt $" {
send_gdb "jump *_start\n"
set start_attempt 0
}
-re "Line.* Jump anyway.*y or n. $" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
}
-re "The program is not being run.*$gdb_prompt $" {
- if { [gdb_reload] != 0 } {
- return
+ if { [gdb_reload $inferior_args] != 0 } {
+ return -1
}
send_gdb "jump *$start\n"
}
timeout {
perror "Jump to start() failed (timeout)"
- return
+ return -1
}
}
}
- return
+
+ return 0
}
if [target_info exists gdb,do_reload_on_run] {
- if { [gdb_reload] != 0 } {
- return
+ if { [gdb_reload $inferior_args] != 0 } {
+ return -1
}
}
- send_gdb "run $args\n"
+ send_gdb "run $inferior_args\n"
# This doesn't work quite right yet.
# Use -notransfer here so that test cases (like chng-sym.exp)
# may test for additional start-up messages.
gdb_expect 60 {
-re "The program .* has been started already.*y or n. $" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
exp_continue
}
-notransfer -re "Starting program: \[^\r\n\]*" {}
# There is no more input expected.
}
}
+
+ return 0
}
# Generic start command. Return 0 if we could start the program, -1
# if we could not.
#
+# INFERIOR_ARGS is passed as arguments to the start command, so may contain
+# inferior arguments.
+#
# N.B. This function does not wait for gdb to return to the prompt,
# that is the caller's responsibility.
-proc gdb_start_cmd {args} {
+proc gdb_start_cmd { {inferior_args {}} } {
global gdb_prompt use_gdb_stub
foreach command [gdb_init_commands] {
return -1
}
- send_gdb "start $args\n"
+ send_gdb "start $inferior_args\n"
# Use -notransfer here so that test cases (like chng-sym.exp)
# may test for additional start-up messages.
gdb_expect 60 {
-re "The program .* has been started already.*y or n. $" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
exp_continue
}
-notransfer -re "Starting program: \[^\r\n\]*" {
# Generic starti command. Return 0 if we could start the program, -1
# if we could not.
#
+# INFERIOR_ARGS is passed as arguments to the starti command, so may contain
+# inferior arguments.
+#
# 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} {
+proc gdb_starti_cmd { {inferior_args {}} } {
global gdb_prompt use_gdb_stub
foreach command [gdb_init_commands] {
return -1
}
- send_gdb "starti $args\n"
+ send_gdb "starti $inferior_args\n"
gdb_expect 60 {
-re "The program .* has been started already.*y or n. $" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
exp_continue
}
-re "Starting program: \[^\r\n\]*" {
return 0
}
-re ".*A problem internal to GDB has been detected" {
- if { $print_fail } {
- fail "$test_name (GDB internal error)"
- }
+ # Always emit a FAIL if we encounter an internal error: internal
+ # errors are never expected.
+ fail "$test_name (GDB internal error)"
gdb_internal_error_resync
return 0
}
global gdb_prompt
set full_name "continue to breakpoint: $name"
+ set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
gdb_test_multiple "continue" $full_name {
-re "(?:Breakpoint|Temporary breakpoint) .* (at|in) $location_pattern\r\n$gdb_prompt $" {
pass $full_name
}
+ -re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
+ kfail "gdb/25038" $full_name
+ }
}
}
while {$count < 10} {
gdb_expect {
-re "Quit this debugging session\\? \\(y or n\\) $" {
- send_gdb "n\n"
+ send_gdb "n\n" answer
incr count
}
-re "Create a core file of GDB\\? \\(y or n\\) $" {
- send_gdb "n\n"
+ send_gdb "n\n" answer
incr count
}
-re "$gdb_prompt $" {
}
-# gdb_test_multiple COMMAND MESSAGE EXPECT_ARGUMENTS
+# gdb_test_multiple COMMAND MESSAGE [ -promp PROMPT_REGEXP] [ -lbl ]
+# EXPECT_ARGUMENTS
# Send a command to gdb; test the result.
#
# COMMAND is the command to execute, send to GDB with send_gdb. If
# this is the null string no command is sent.
# MESSAGE is a message to be printed with the built-in failure patterns
# if one of them matches. If MESSAGE is empty COMMAND will be used.
+# -prompt PROMPT_REGEXP specifies a regexp matching the expected prompt
+# after the command output. If empty, defaults to "$gdb_prompt $".
+# -lbl specifies that line-by-line matching will be used.
# EXPECT_ARGUMENTS will be fed to expect in addition to the standard
# patterns. Pattern elements will be evaluated in the caller's
# context; action elements will be executed in the caller's context.
#
# gdb_test_multiple "print foo" "test foo" {
# -re "expected output 1" {
-# pass "print foo"
+# pass "test foo"
+# }
+# -re "expected output 2" {
+# fail "test foo"
+# }
+# }
+#
+# Within action elements you can also make use of the variable
+# gdb_test_name. This variable is setup automatically by
+# gdb_test_multiple, and contains the value of MESSAGE. You can then
+# write this, which is equivalent to the above:
+#
+# gdb_test_multiple "print foo" "test foo" {
+# -re "expected output 1" {
+# pass $gdb_test_name
# }
# -re "expected output 2" {
-# fail "print foo"
+# fail $gdb_test_name
# }
# }
#
# 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 } {
+# In EXPECT_ARGUMENTS we can use a -wrap pattern flag, that wraps the regexp
+# pattern as gdb_test wraps its message argument.
+# This allows us to rewrite:
+# gdb_test <command> <pattern> <message>
+# into:
+# gdb_test_multiple <command> <message> {
+# -re -wrap <pattern> {
+# pass $gdb_test_name
+# }
+# }
+#
+# In EXPECT_ARGUMENTS, a pattern flag -early can be used. It makes sure the
+# pattern is inserted before any implicit pattern added by gdb_test_multiple.
+# Using this pattern flag, we can f.i. setup a kfail for an assertion failure
+# <assert> during gdb_continue_to_breakpoint by the rewrite:
+# gdb_continue_to_breakpoint <msg> <pattern>
+# into:
+# set breakpoint_pattern "(?:Breakpoint|Temporary breakpoint) .* (at|in)"
+# gdb_test_multiple "continue" "continue to breakpoint: <msg>" {
+# -early -re "internal-error: <assert>" {
+# setup_kfail gdb/nnnnn "*-*-*"
+# exp_continue
+# }
+# -re "$breakpoint_pattern <pattern>\r\n$gdb_prompt $" {
+# pass $gdb_test_name
+# }
+# }
+#
+proc gdb_test_multiple { command message args } {
global verbose use_gdb_stub
global gdb_prompt pagination_prompt
global GDB
upvar expect_out expect_out
global any_spawn_id
+ set line_by_line 0
+ set prompt_regexp ""
+ for {set i 0} {$i < [llength $args]} {incr i} {
+ set arg [lindex $args $i]
+ if { $arg == "-prompt" } {
+ incr i
+ set prompt_regexp [lindex $args $i]
+ } elseif { $arg == "-lbl" } {
+ set line_by_line 1
+ } else {
+ set user_code $arg
+ break
+ }
+ }
+ if { [expr $i + 1] < [llength $args] } {
+ error "Too many arguments to gdb_test_multiple"
+ } elseif { ![info exists user_code] } {
+ error "Too few arguments to gdb_test_multiple"
+ }
+
+ if { "$prompt_regexp" == "" } {
+ set prompt_regexp "$gdb_prompt $"
+ }
+
if { $message == "" } {
set message $command
}
set subst_code [uplevel list $subst_code]
set processed_code ""
+ set early_processed_code ""
+ # The variable current_list holds the name of the currently processed
+ # list, either processed_code or early_processed_code.
+ set current_list "processed_code"
set patterns ""
set expecting_action 0
set expecting_arg 0
+ set wrap_pattern 0
foreach item $user_code subst_item $subst_code {
if { $item == "-n" || $item == "-notransfer" || $item == "-nocase" } {
- lappend processed_code $item
+ lappend $current_list $item
continue
}
if { $item == "-indices" || $item == "-re" || $item == "-ex" } {
- lappend processed_code $item
+ lappend $current_list $item
+ continue
+ }
+ if { $item == "-early" } {
+ set current_list "early_processed_code"
continue
}
if { $item == "-timeout" || $item == "-i" } {
set expecting_arg 1
- lappend processed_code $item
+ lappend $current_list $item
+ continue
+ }
+ if { $item == "-wrap" } {
+ set wrap_pattern 1
continue
}
if { $expecting_arg } {
set expecting_arg 0
- lappend processed_code $subst_item
+ lappend $current_list $subst_item
continue
}
if { $expecting_action } {
- lappend processed_code "uplevel [list $item]"
+ lappend $current_list "uplevel [list $item]"
set expecting_action 0
# Cosmetic, no effect on the list.
- append processed_code "\n"
+ append $current_list "\n"
+ # End the effect of -early, it only applies to one action.
+ set current_list "processed_code"
continue
}
set expecting_action 1
- lappend processed_code $subst_item
+ if { $wrap_pattern } {
+ # Wrap subst_item as is done for the gdb_test PATTERN argument.
+ lappend $current_list \
+ "\[\r\n\]*(?:$subst_item)\[\r\n\]+$gdb_prompt $"
+ set wrap_pattern 0
+ } else {
+ lappend $current_list $subst_item
+ }
if {$patterns != ""} {
append patterns "; "
}
}
}
- set code {
+ set code $early_processed_code
+ append code {
-re ".*A problem internal to GDB has been detected" {
fail "$message (GDB internal error)"
gdb_internal_error_resync
}
}
append code $processed_code
+
+ # Reset the spawn id, in case the processed code used -i.
append code {
- # Reset the spawn id, in case the processed code used -i.
-i "$gdb_spawn_id"
+ }
- -re "Ending remote debugging.*$gdb_prompt $" {
+ append code {
+ -re "Ending remote debugging.*$prompt_regexp" {
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:.*$prompt_regexp" {
perror "Undefined command \"$command\"."
fail "$message"
set result 1
}
- -re "Ambiguous command.*$gdb_prompt $" {
+ -re "Ambiguous command.*$prompt_regexp" {
perror "\"$command\" is not a unique command name."
fail "$message"
set result 1
}
- -re "$inferior_exited_re with code \[0-9\]+.*$gdb_prompt $" {
+ -re "$inferior_exited_re with code \[0-9\]+.*$prompt_regexp" {
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.*$prompt_regexp" {
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 $" {
+ -re "The program is not being run.*$prompt_regexp" {
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 $" {
+ -re "\r\n$prompt_regexp" {
if ![string match "" $message] then {
fail "$message"
}
set result -1
}
-re "\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " {
- send_gdb "n\n"
- gdb_expect -re "$gdb_prompt $"
+ send_gdb "n\n" answer
+ gdb_expect -re "$prompt_regexp"
fail "$message (got interactive prompt)"
set result -1
}
-re "\\\[0\\\] cancel\r\n\\\[1\\\] all.*\r\n> $" {
send_gdb "0\n"
- gdb_expect -re "$gdb_prompt $"
+ gdb_expect -re "$prompt_regexp"
fail "$message (got breakpoint menu)"
set result -1
}
- # Patterns below apply to any spawn id specified.
+ -i $gdb_spawn_id
+ eof {
+ perror "GDB process no longer exists"
+ set wait_status [wait -i $gdb_spawn_id]
+ verbose -log "GDB process exited with wait status $wait_status"
+ if { $message != "" } {
+ fail "$message"
+ }
+ return -1
+ }
+ }
+
+ if {$line_by_line} {
+ append code {
+ -re "\r\n\[^\r\n\]*(?=\r\n)" {
+ exp_continue
+ }
+ }
+ }
+
+ # Now patterns that apply to any spawn id specified.
+ append code {
-i $any_spawn_id
eof {
perror "Process no longer exists"
}
}
+ # remote_expect calls the eof section if there is an error on the
+ # expect call. We already have eof sections above, and we don't
+ # want them to get called in that situation. Since the last eof
+ # section becomes the error section, here we define another eof
+ # section, but with an empty spawn_id list, so that it won't ever
+ # match.
+ append code {
+ -i "" eof {
+ # This comment is here because the eof section must not be
+ # the empty string, otherwise remote_expect won't realize
+ # it exists.
+ }
+ }
+
+ # Create gdb_test_name in the parent scope. If this variable
+ # already exists, which it might if we have nested calls to
+ # gdb_test_multiple, then preserve the old value, otherwise,
+ # create a new variable in the parent scope.
+ upvar gdb_test_name gdb_test_name
+ if { [info exists gdb_test_name] } {
+ set gdb_test_name_old "$gdb_test_name"
+ }
+ set gdb_test_name "$message"
+
set result 0
set code [catch {gdb_expect $code} string]
+
+ # Clean up the gdb_test_name variable. If we had a
+ # previous value then restore it, otherwise, delete the variable
+ # from the parent scope.
+ if { [info exists gdb_test_name_old] } {
+ set gdb_test_name "$gdb_test_name_old"
+ } else {
+ unset gdb_test_name
+ }
+
if {$code == 1} {
global errorInfo errorCode
return -code error -errorinfo $errorInfo -errorcode $errorCode $string
return $result
}
+# Usage: gdb_test_multiline NAME INPUT RESULT {INPUT RESULT} ...
+# Run a test named NAME, consisting of multiple lines of input.
+# After each input line INPUT, search for result line RESULT.
+# Succeed if all results are seen; fail otherwise.
+
+proc gdb_test_multiline { name args } {
+ global gdb_prompt
+ set inputnr 0
+ foreach {input result} $args {
+ incr inputnr
+ if {[gdb_test_multiple $input "$name: input $inputnr: $input" {
+ -re "\[\r\n\]*($result)\[\r\n\]+($gdb_prompt | *>)$" {
+ pass $gdb_test_name
+ }
+ }]} {
+ return 1
+ }
+ }
+ return 0
+}
+
+
# gdb_test COMMAND PATTERN MESSAGE QUESTION RESPONSE
# Send a command to gdb; test the result.
#
set command [lindex $args 0]
set pattern [lindex $args 1]
- if [llength $args]==5 {
- set question_string [lindex $args 3]
- set response_string [lindex $args 4]
- } else {
- set question_string "^FOOBAR$"
- }
-
- return [gdb_test_multiple $command $message {
+ set user_code {}
+ lappend user_code {
-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
+ }
+
+ if { [llength $args] == 5 } {
+ set question_string [lindex $args 3]
+ set response_string [lindex $args 4]
+ lappend user_code {
+ -re "(${question_string})$" {
+ send_gdb "$response_string\n"
+ exp_continue
+ }
}
- }]
+ }
+
+ set user_code [join $user_code]
+ return [gdb_test_multiple $command $message $user_code]
+}
+
+# Return 1 if version MAJOR.MINOR is at least AT_LEAST_MAJOR.AT_LEAST_MINOR.
+proc version_at_least { major minor at_least_major at_least_minor} {
+ if { $major > $at_least_major } {
+ return 1
+ } elseif { $major == $at_least_major \
+ && $minor >= $at_least_minor } {
+ return 1
+ } else {
+ return 0
+ }
+}
+
+# Return 1 if tcl version used is at least MAJOR.MINOR
+proc tcl_version_at_least { major minor } {
+ global tcl_version
+ regexp {^([0-9]+)\.([0-9]+)$} $tcl_version \
+ dummy tcl_version_major tcl_version_minor
+ return [version_at_least $tcl_version_major $tcl_version_minor \
+ $major $minor]
+}
+
+if { [tcl_version_at_least 8 5] == 0 } {
+ # lrepeat was added in tcl 8.5. Only add if missing.
+ proc lrepeat { n element } {
+ if { [string is integer -strict $n] == 0 } {
+ error "expected integer but got \"$n\""
+ }
+ if { $n < 0 } {
+ error "bad count \"$n\": must be integer >= 0"
+ }
+ set res [list]
+ for {set i 0} {$i < $n} {incr i} {
+ lappend res $element
+ }
+ return $res
+ }
}
# gdb_test_no_output COMMAND MESSAGE
regsub -all "\n" $pattern "\r\n" pattern
if [llength $args]==3 then {
set message [lindex $args 2]
- } else {
- set message $command
+ return [gdb_test $command $pattern $message]
}
- return [gdb_test $command $pattern $message]
+ return [gdb_test $command $pattern]
}
# Wrapper around gdb_test_multiple that looks for a list of expected
return $res
}
+# get_print_expr_at_depths EXP OUTPUTS
+#
+# Used for testing 'set print max-depth'. Prints the expression EXP
+# with 'set print max-depth' set to various depths. OUTPUTS is a list
+# of `n` different patterns to match at each of the depths from 0 to
+# (`n` - 1).
+#
+# This proc does one final check with the max-depth set to 'unlimited'
+# which is tested against the last pattern in the OUTPUTS list. The
+# OUTPUTS list is therefore required to match every depth from 0 to a
+# depth where the whole of EXP is printed with no ellipsis.
+#
+# This proc leaves the 'set print max-depth' set to 'unlimited'.
+proc gdb_print_expr_at_depths {exp outputs} {
+ for { set depth 0 } { $depth <= [llength $outputs] } { incr depth } {
+ if { $depth == [llength $outputs] } {
+ set expected_result [lindex $outputs [expr [llength $outputs] - 1]]
+ set depth_string "unlimited"
+ } else {
+ set expected_result [lindex $outputs $depth]
+ set depth_string $depth
+ }
+
+ with_test_prefix "exp='$exp': depth=${depth_string}" {
+ gdb_test_no_output "set print max-depth ${depth_string}"
+ gdb_test "p $exp" "$expected_result"
+ }
+ }
+}
+
\f
# Issue a PASS and return true if evaluating CONDITION in the caller's
set message $condition
}
- set res [uplevel 1 expr $condition]
- if {!$res} {
+ set code [catch {uplevel 1 expr $condition} res]
+ if {$code != 0 || !$res} {
fail $message
} else {
pass $message
send_gdb "dir\n"
gdb_expect 60 {
-re "Reinitialize source path to empty.*y or n. " {
- send_gdb "y\n"
+ send_gdb "y\n" answer
gdb_expect 60 {
-re "Source directories searched.*$gdb_prompt $" {
send_gdb "dir $subdir\n"
proc default_gdb_exit {} {
global GDB
global INTERNAL_GDBFLAGS GDBFLAGS
- global verbose
global gdb_spawn_id inferior_spawn_id
global inotify_log_file
send_gdb "quit\n"
gdb_expect 10 {
-re "y or n" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
exp_continue
}
-re "DOSEXIT code" { }
proc gdb_file_cmd { arg } {
global gdb_prompt
- global verbose
global GDB
global last_loaded_file
}
# The file command used to kill the remote target. For the benefit
- # of the testsuite, preserve this behavior.
- send_gdb "kill\n"
+ # of the testsuite, preserve this behavior. Mark as optional so it doesn't
+ # get written to the stdin log.
+ send_gdb "kill\n" optional
gdb_expect 120 {
-re "Kill the program being debugged. .y or n. $" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
verbose "\t\tKilling previous program being debugged"
exp_continue
}
}
send_gdb "file $arg\n"
+ set new_symbol_table 0
+ set basename [file tail $arg]
gdb_expect 120 {
- -re "Reading symbols from.*LZMA support was disabled.*done.*$gdb_prompt $" {
+ -re "Reading symbols from.*LZMA support was disabled.*$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 $" {
+ -re "Reading symbols from.*no debugging symbols found.*$gdb_prompt $" {
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 $" {
+ -re "Reading symbols from.*$gdb_prompt $" {
verbose "\t\tLoaded $arg into $GDB"
set gdb_file_cmd_debug_info "debug"
return 0
}
-re "Load new symbol table from \".*\".*y or n. $" {
- send_gdb "y\n"
- gdb_expect 120 {
- -re "Reading symbols from.*done.*$gdb_prompt $" {
- verbose "\t\tLoaded $arg with new symbol table into $GDB"
- set gdb_file_cmd_debug_info "debug"
- return 0
- }
- timeout {
- 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
- }
- }
+ if { $new_symbol_table > 0 } {
+ perror [join [list "Couldn't load $basename,"
+ "interactive prompt loop detected."]]
+ return -1
+ }
+ send_gdb "y\n" answer
+ incr new_symbol_table
+ set suffix "-- with new symbol table"
+ set arg "$arg $suffix"
+ set basename "$basename $suffix"
+ exp_continue
}
-re "No such file or directory.*$gdb_prompt $" {
- perror "($arg) No such file or directory"
+ perror "($basename) No such file or directory"
return -1
}
-re "A problem internal to GDB has been detected" {
- fail "($arg) (GDB internal error)"
+ perror "Couldn't load $basename into GDB (GDB internal error)."
gdb_internal_error_resync
return -1
}
-re "$gdb_prompt $" {
- perror "Couldn't load $arg into $GDB."
+ perror "Couldn't load $basename into GDB."
return -1
}
timeout {
- perror "Couldn't load $arg into $GDB (timeout)."
+ perror "Couldn't load $basename 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 (eof)."
+ perror "Couldn't load $basename into GDB (eof)."
return -1
}
}
set use_gdb_stub [target_info exists use_gdb_stub]
verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
+ gdb_write_cmd_file "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
if [info exists gdb_spawn_id] {
return 0
# Default gdb_start procedure.
proc default_gdb_start { } {
- global gdb_prompt pagination_prompt
+ global gdb_prompt
global gdb_spawn_id
global inferior_spawn_id
return 0
}
+ # Keep track of the number of times GDB has been launched.
+ global gdb_instances
+ incr gdb_instances
+
+ gdb_stdin_log_init
+
set res [gdb_spawn]
if { $res != 0} {
return $res
# 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
- }
+ gdb_expect 360 {
+ -re "\[\r\n\]$gdb_prompt $" {
+ verbose "GDB initialized."
+ }
+ -re "$gdb_prompt $" {
+ perror "GDB never initialized."
+ unset gdb_spawn_id
+ return -1
+ }
+ timeout {
+ perror "(timeout) GDB never initialized after 10 seconds."
+ remote_close host
+ unset gdb_spawn_id
+ return -1
+ }
+ eof {
+ perror "(eof) GDB never initialized."
+ unset gdb_spawn_id
+ return -1
}
}
warning "Couldn't set the width to 0."
}
}
+
+ gdb_debug_init
return 0
}
proc skip_python_tests_prompt { prompt_regexp } {
global gdb_py_is_py3k
- global gdb_py_is_py24
- gdb_test_multiple "python print ('test')" "verify python support" {
- -re "not supported.*$prompt_regexp" {
- unsupported "Python support is disabled."
- return 1
+ gdb_test_multiple "python print ('test')" "verify python support" \
+ -prompt "$prompt_regexp" {
+ -re "not supported.*$prompt_regexp" {
+ unsupported "Python support is disabled."
+ return 1
+ }
+ -re "$prompt_regexp" {}
}
- -re "$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
- }
+ gdb_test_multiple "python print (sys.version_info\[0\])" "check if python 3" \
+ -prompt "$prompt_regexp" {
+ -re "3.*$prompt_regexp" {
+ set gdb_py_is_py3k 1
+ }
-re ".*$prompt_regexp" {
- set gdb_py_is_py24 0
- }
- }
- }
+ set gdb_py_is_py3k 0
+ }
+ }
return 0
}
upvar 1 $var myvar
foreach myvar $list {
with_test_prefix "$var=$myvar" {
- uplevel 1 $body
+ set code [catch {uplevel 1 $body} result]
+ }
+
+ if {$code == 1} {
+ global errorInfo errorCode
+ return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
+ } elseif {$code == 3} {
+ break
+ } elseif {$code == 2} {
+ return -code $code $result
}
}
}
}
}
+# Run BODY with timeout factor FACTOR if check-read1 is used.
+
+proc with_read1_timeout_factor { factor body } {
+ if { [info exists ::env(READ1)] == 1 && $::env(READ1) == 1 } {
+ # Use timeout factor
+ } else {
+ # Reset timeout factor
+ set factor 1
+ }
+ return [uplevel [list with_timeout_factor $factor $body]]
+}
+
# Return 1 if _Complex types are supported, otherwise, return 0.
gdb_caching_proc support_complex_tests {
} executable]
}
+# Return 1 if compiling go is supported.
+gdb_caching_proc support_go_compile {
+
+ return [gdb_can_simple_compile go-hello {
+ package main
+ import "fmt"
+ func main() {
+ fmt.Println("hello world")
+ }
+ } executable go]
+}
+
# Return 1 if GDB can get a type for siginfo from the target, otherwise
# return 0.
return $skip_tsx_tests
}
+# Run a test on the target to see if it supports avx512bf16. Return 0 if so,
+# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
+
+gdb_caching_proc skip_avx512bf16_tests {
+ global srcdir subdir gdb_prompt inferior_exited_re
+
+ set me "skip_avx512bf16_tests"
+ if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
+ verbose "$me: target does not support avx512bf16, returning 1" 2
+ return 1
+ }
+
+ # Compile a test program.
+ set src {
+ int main() {
+ asm volatile ("vcvtne2ps2bf16 %xmm0, %xmm1, %xmm0");
+ return 0;
+ }
+ }
+ if {![gdb_simple_compile $me $src executable]} {
+ return 1
+ }
+
+ # No error message, compilation succeeded so now run it via gdb.
+
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load "$obj"
+ gdb_run_cmd
+ gdb_expect {
+ -re ".*Illegal instruction.*${gdb_prompt} $" {
+ verbose -log "$me: avx512bf16 hardware not detected."
+ set skip_avx512bf16_tests 1
+ }
+ -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
+ verbose -log "$me: avx512bf16 hardware detected."
+ set skip_avx512bf16_tests 0
+ }
+ default {
+ warning "\n$me: default case taken."
+ set skip_avx512bf16_tests 1
+ }
+ }
+ gdb_exit
+ remote_file build delete $obj
+
+ verbose "$me: returning $skip_avx512bf16_tests" 2
+ return $skip_avx512bf16_tests
+}
+
# 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.
# Compile a test program.
set src { int main() { return 0; } }
if {![gdb_simple_compile $me $src executable]} {
- return 0
+ return 1
}
# No error message, compilation succeeded so now run it via gdb.
# Compile a test program.
set src { int main() { return 0; } }
if {![gdb_simple_compile $me $src executable]} {
- return 0
+ return 1
}
# No error message, compilation succeeded so now run it via gdb.
return $ok
}
-# Return 0 if we should skip tests that require the libstdc++ stap
+# Return 1 if we should skip tests that require the libstdc++ stap
# probes. This must be invoked while gdb is running, after shared
-# libraries have been loaded.
+# libraries have been loaded. PROMPT_REGEXP is the expected prompt.
+
+proc skip_libstdcxx_probe_tests_prompt { prompt_regexp } {
+ set supported 0
+ gdb_test_multiple "info probe" "check for stap probe in libstdc++" \
+ -prompt "$prompt_regexp" {
+ -re ".*libstdcxx.*catch.*\r\n$prompt_regexp" {
+ set supported 1
+ }
+ -re "\r\n$prompt_regexp" {
+ }
+ }
+ set skip [expr !$supported]
+ return $skip
+}
+
+# As skip_libstdcxx_probe_tests_prompt, with gdb_prompt.
proc skip_libstdcxx_probe_tests {} {
global gdb_prompt
-
- set ok 0
- gdb_test_multiple "info probe" "check for stap probe in libstdc++" {
- -re ".*libstdcxx.*catch.*\r\n$gdb_prompt $" {
- set ok 1
- }
- -re "\r\n$gdb_prompt $" {
- }
- }
- return $ok
-}
+ return [skip_libstdcxx_probe_tests_prompt "$gdb_prompt $"]
+}
# Return 1 if we should skip tests of the "compile" feature.
# This must be invoked after the inferior has been started.
proc gdb_is_target_1 { target_name target_stack_regexp prompt_regexp } {
set test "probe for target ${target_name}"
- gdb_test_multiple "maint print target-stack" $test {
- -re "${target_stack_regexp}${prompt_regexp}" {
- pass $test
- return 1
- }
- -re "$prompt_regexp" {
- pass $test
+ gdb_test_multiple "maint print target-stack" $test \
+ -prompt "$prompt_regexp" {
+ -re "${target_stack_regexp}${prompt_regexp}" {
+ pass $test
+ return 1
+ }
+ -re "$prompt_regexp" {
+ pass $test
+ }
}
- }
return 0
}
# We have to use -E and -o together, despite the comments
# above, because of how DejaGnu handles remote host testing.
set ppout "$outdir/compiler.i"
- gdb_compile "${ifile}" "$ppout" preprocess [list "$arg" quiet]
+ gdb_compile "${ifile}" "$ppout" preprocess [list "$arg" quiet getting_compiler_info]
set file [open $ppout r]
set cppout [read $file]
close $file
} else {
- set cppout [ gdb_compile "${ifile}" "" preprocess [list "$arg" quiet] ]
+ set cppout [ gdb_compile "${ifile}" "" preprocess [list "$arg" quiet getting_compiler_info] ]
}
eval log_file $saved_log
set gdb_wrapper_initialized 0
set gdb_wrapper_target ""
+set gdb_wrapper_file ""
+set gdb_wrapper_flags ""
proc gdb_wrapper_init { args } {
global gdb_wrapper_initialized
set result [build_wrapper "testglue.o"]
if { $result != "" } {
set gdb_wrapper_file [lindex $result 0]
+ if ![is_remote host] {
+ set gdb_wrapper_file [file join [pwd] $gdb_wrapper_file]
+ }
set gdb_wrapper_flags [lindex $result 1]
} else {
warning "Status wrapper failed to build."
}
+ } else {
+ set gdb_wrapper_file ""
+ set gdb_wrapper_flags ""
}
+ verbose "set gdb_wrapper_file = $gdb_wrapper_file"
set gdb_wrapper_initialized 1
set gdb_wrapper_target [current_target_name]
}
set postfix "s"
}
}
- set src [standard_temp_file $name-[pid].c]
+ set ext "c"
+ foreach flag $compile_flags {
+ if { "$flag" == "go" } {
+ set ext "go"
+ break
+ }
+ }
+ set src [standard_temp_file $name-[pid].$ext]
set obj [standard_temp_file $name-[pid].$postfix]
set compile_flags [concat $compile_flags {debug nowarnings quiet}]
# dynamically load libraries at runtime. For example, on Linux, this adds
# -ldl so that the test can use dlopen.
# - nowarnings: Inhibit all compiler warnings.
+# - pie: Force creation of PIE executables.
+# - nopie: Prevent creation of PIE executables.
#
# And here are some of the not too obscure options understood by DejaGnu that
# influence the compilation:
# - 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.
+# - ada, c++, f77, f90, go, rust: Compile the file as Ada, C++,
+# Fortran 77, Fortran 90, Go or Rust.
# - debug: Build with debug information.
# - optimize: Build with optimization.
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
} else {
set new_options [universal_compile_options]
}
+
+ # Some C/C++ testcases unconditionally pass -Wno-foo as additional
+ # options to disable some warning. That is OK with GCC, because
+ # by design, GCC accepts any -Wno-foo option, even if it doesn't
+ # support -Wfoo. Clang however warns about unknown -Wno-foo by
+ # default, unless you pass -Wno-unknown-warning-option as well.
+ # We do that here, so that individual testcases don't have to
+ # worry about it.
+ if {[lsearch -exact $options getting_compiler_info] == -1
+ && [lsearch -exact $options rust] == -1
+ && [lsearch -exact $options ada] == -1
+ && [lsearch -exact $options f77] == -1
+ && [lsearch -exact $options f90] == -1
+ && [lsearch -exact $options go] == -1
+ && [test_compiler_info "clang-*"]} {
+ lappend new_options "additional_flags=-Wno-unknown-warning-option"
+ }
+
+ # Treating .c input files as C++ is deprecated in Clang, so
+ # explicitly force C++ language.
+ if { [lsearch -exact $options getting_compiler_info] == -1
+ && [lsearch -exact $options c++] != -1
+ && [test_compiler_info "clang-*"]} {
+ lappend new_options additional_flags=-x\ c++
+ }
+
+ # Place (and look for) Fortran `.mod` files in the output
+ # directory for this specific test.
+ if {[lsearch -exact $options f77] != -1 \
+ || [lsearch -exact $options f90] != -1 } {
+ # Fortran compile.
+ set mod_path [standard_output_file ""]
+ lappend new_options "additional_flags=-J${mod_path}"
+ }
+
set shlib_found 0
set shlib_load 0
+ set getting_compiler_info 0
foreach opt $options {
if {[regexp {^shlib=(.*)} $opt dummy_var shlib_name]
&& $type == "executable"} {
}
} elseif { $opt == "shlib_load" && $type == "executable" } {
set shlib_load 1
+ } elseif { $opt == "getting_compiler_info" } {
+ # If this is set, calling test_compiler_info will cause recursion.
+ set getting_compiler_info 1
} else {
lappend new_options $opt
}
}
+ # Ensure stack protector is disabled for GCC, as this causes problems with
+ # DWARF line numbering.
+ # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88432
+ # This option defaults to on for Debian/Ubuntu.
+ if { $getting_compiler_info == 0
+ && [test_compiler_info {gcc-*-*}]
+ && !([test_compiler_info {gcc-[0-3]-*}]
+ || [test_compiler_info {gcc-4-0-*}])
+ && [lsearch -exact $options rust] == -1} {
+ # Put it at the front to not override any user-provided value.
+ lappend new_options "early_flags=-fno-stack-protector"
+ }
+
# 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.
verbose "options are $options"
verbose "source is $source $dest $type $options"
- if { $gdb_wrapper_initialized == 0 } { gdb_wrapper_init }
+ gdb_wrapper_init
if {[target_info exists needs_status_wrapper] && \
[target_info needs_status_wrapper] != "0" && \
- [info exists gdb_wrapper_file]} {
+ $gdb_wrapper_file != "" } {
lappend options "libs=${gdb_wrapper_file}"
lappend options "ldflags=${gdb_wrapper_flags}"
}
set options [lreplace $options $nowarnings $nowarnings $flag]
}
+ # Replace the "pie" option with the appropriate compiler and linker flags
+ # to enable PIE executables.
+ set pie [lsearch -exact $options pie]
+ if {$pie != -1} {
+ if [target_info exists gdb,pie_flag] {
+ set flag "additional_flags=[target_info gdb,pie_flag]"
+ } else {
+ # For safety, use fPIE rather than fpie. On AArch64, m68k, PowerPC
+ # and SPARC, fpie can cause compile errors due to the GOT exceeding
+ # a maximum size. On other architectures the two flags are
+ # identical (see the GCC manual). Note Debian9 and Ubuntu16.10
+ # onwards default GCC to using fPIE. If you do require fpie, then
+ # it can be set using the pie_flag.
+ set flag "additional_flags=-fPIE"
+ }
+ set options [lreplace $options $pie $pie $flag]
+
+ if [target_info exists gdb,pie_ldflag] {
+ set flag "ldflags=[target_info gdb,pie_ldflag]"
+ } else {
+ set flag "ldflags=-pie"
+ }
+ lappend options "$flag"
+ }
+
+ # Replace the "nopie" option with the appropriate linker flag to disable
+ # PIE executables. There are no compiler flags for this option.
+ set nopie [lsearch -exact $options nopie]
+ if {$nopie != -1} {
+ if [target_info exists gdb,nopie_flag] {
+ set flag "ldflags=[target_info gdb,nopie_flag]"
+ } else {
+ set flag "ldflags=-no-pie"
+ }
+ set options [lreplace $options $nopie $nopie $flag]
+ }
+
if { $type == "executable" } {
if { ([istarget "*-*-mingw*"]
|| [istarget "*-*-*djgpp"]
# Force output to unbuffered mode, by linking in an object file
# with a global contructor that calls setvbuf.
#
- # Compile the special object seperatelly for two reasons:
+ # Compile the special object separately for two reasons:
# 1) Insulate it from $options.
# 2) Avoid compiling it for every gdb_compile invocation,
# which is time consuming, especially if we're remote
regsub "\[\r\n\]*$" "$result" "" result
regsub "^\[\r\n\]*" "$result" "" result
+ if { $type == "executable" && $result == "" \
+ && ($nopie != -1 || $pie != -1) } {
+ set is_pie [exec_is_pie "$dest"]
+ if { $nopie != -1 && $is_pie == 1 } {
+ set result "nopie failed to prevent PIE executable"
+ } elseif { $pie != -1 && $is_pie == 0 } {
+ set result "pie failed to generate PIE executable"
+ }
+ }
+
if {[lsearch $options quiet] < 0} {
# We shall update this on a per language basis, to avoid
# changing the entire testsuite in one go.
# against several different thread libraries, to see which one this
# system has.
proc gdb_compile_pthreads {source dest type options} {
+ if {$type != "executable"} {
+ return [gdb_compile $source $dest $type $options]
+ }
set built_binfile 0
set why_msg "unrecognized error"
foreach lib {-lpthreads -lpthread -lthread ""} {
set outdir [file dirname $dest]
set objects ""
foreach source $sources {
- set sourcebase [file tail $source]
- if {[gdb_compile $source "${outdir}/${sourcebase}.o" object $obj_options] != ""} {
- return -1
- }
- lappend objects ${outdir}/${sourcebase}.o
+ set sourcebase [file tail $source]
+ if {[file extension $source] == ".o"} {
+ # Already a .o file.
+ lappend objects $source
+ } elseif {[gdb_compile $source "${outdir}/${sourcebase}.o" object \
+ $obj_options] != ""} {
+ return -1
+ } else {
+ lappend objects ${outdir}/${sourcebase}.o
+ }
}
set link_options $options
}
}
-proc send_gdb { string } {
+# Build an OpenMP program from SOURCE. See prefatory comment for
+# gdb_compile, above, for discussion of the parameters to this proc.
+
+proc gdb_compile_openmp {source dest type options} {
+ lappend options "additional_flags=-fopenmp"
+ return [gdb_compile $source $dest $type $options]
+}
+
+# Send a command to GDB.
+# For options for TYPE see gdb_stdin_log_write
+
+proc send_gdb { string {type standard}} {
global suppress_flag
if { $suppress_flag } {
return "suppressed"
}
+ gdb_stdin_log_write $string $type
return [remote_send host "$string"]
}
fail "$test (bad file format)"
return -1
}
- -re ": No such file or directory.*\r\n$gdb_prompt $" {
+ -re -wrap "[string_to_regexp $core]: No such file or directory.*" {
fail "$test (file not found)"
return -1
}
# either the first time or after already starting the program once,
# for remote targets. Most files that override gdb_load should now
# override this instead.
+#
+# INFERIOR_ARGS contains the arguments to pass to the inferiors, as a
+# single string to get interpreted by a shell. If the target board
+# overriding gdb_reload is a "stub", then it should arrange things such
+# these arguments make their way to the inferior process.
-proc gdb_reload { } {
+proc gdb_reload { {inferior_args {}} } {
# For the benefit of existing configurations, default to gdb_load.
# Specifying no file defaults to the executable currently being
# debugged.
return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]
}
+# Default implementation of gdb_init.
proc default_gdb_init { test_file_name } {
global gdb_wrapper_initialized
global gdb_wrapper_target
global cleanfiles
global pf_prefix
+ # 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 gdb_test_timeout
+ 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 $fd
+ }
+
+ # Block writes to all banned variables, and invocation of all
+ # banned procedures...
+ global banned_variables
+ global banned_procedures
+ global banned_traced
+ if (!$banned_traced) {
+ foreach banned_var $banned_variables {
+ global "$banned_var"
+ trace add variable "$banned_var" write error
+ }
+ foreach banned_proc $banned_procedures {
+ global "$banned_proc"
+ trace add execution "$banned_proc" enter error
+ }
+ set banned_traced 1
+ }
+
+ # We set LC_ALL, LC_CTYPE, and LANG to C so that we get the same
+ # messages as expected.
+ setenv LC_ALL C
+ setenv LC_CTYPE C
+ setenv LANG C
+
+ # Don't let a .inputrc file or an existing setting of INPUTRC mess up
+ # the test results. Even if /dev/null doesn't exist on the particular
+ # platform, the readline library will use the default setting just by
+ # failing to open the file. OTOH, opening /dev/null successfully will
+ # also result in the default settings being used since nothing will be
+ # read from this file.
+ setenv INPUTRC "/dev/null"
+
+ # This disables style output, which would interfere with many
+ # tests.
+ setenv TERM "dumb"
+
+ # Ensure that GDBHISTFILE and GDBHISTSIZE are removed from the
+ # environment, we don't want these modifications to the history
+ # settings.
+ unset -nocomplain ::env(GDBHISTFILE)
+ unset -nocomplain ::env(GDBHISTSIZE)
+
+ # Initialize GDB's pty with a fixed size, to make sure we avoid pagination
+ # during startup. See "man expect" for details about stty_init.
+ global stty_init
+ set stty_init "rows 25 cols 80"
+
+ # Some tests (for example gdb.base/maint.exp) shell out from gdb to use
+ # grep. Clear GREP_OPTIONS to make the behavior predictable,
+ # especially having color output turned on can cause tests to fail.
+ setenv GREP_OPTIONS ""
+
+ # Clear $gdbserver_reconnect_p.
+ global gdbserver_reconnect_p
+ set gdbserver_reconnect_p 1
+ unset gdbserver_reconnect_p
+
+ # Clear $last_loaded_file
+ global last_loaded_file
+ unset -nocomplain last_loaded_file
+
+ # Reset GDB number of instances
+ global gdb_instances
+ set gdb_instances 0
+
set cleanfiles {}
gdb_clear_suppressed
if [info exists use_gdb_stub] {
unset use_gdb_stub
}
+
+ gdb_setup_known_globals
+
+ if { [info procs ::gdb_tcl_unknown] != "" } {
+ # Dejagnu overrides proc unknown. The dejagnu version may trigger in a
+ # test-case but abort the entire test run. To fix this, we install a
+ # local version here, which reverts dejagnu's override, and restore
+ # dejagnu's version in gdb_finish.
+ rename ::unknown ::dejagnu_unknown
+ proc unknown { args } {
+ # Use tcl's unknown.
+ set cmd [lindex $args 0]
+ unresolved "testcase aborted due to invalid command name: $cmd"
+ return [uplevel 1 ::gdb_tcl_unknown $args]
+ }
+ }
}
# Return a path using GDB_PARALLEL.
set dir [make_gdb_parallel_path outputs $subdir $gdb_test_file_name]
file mkdir $dir
+ # If running on MinGW, replace /c/foo with c:/foo
+ if { [ishost *-*-mingw*] } {
+ set dir [exec sh -c "cd ${dir} && pwd -W"]
+ }
return [file join $dir $basename]
}
+# Turn BASENAME into a full file name in the standard output directory. If
+# GDB has been launched more than once then append the count, starting with
+# a ".1" postfix.
+
+proc standard_output_file_with_gdb_instance {basename} {
+ global gdb_instances
+ set count [expr $gdb_instances - 1 ]
+
+ if {$count == 0} {
+ return [standard_output_file $basename]
+ }
+ return [standard_output_file ${basename}.${count}]
+}
+
# Return the name of a file in our standard temporary directory.
proc standard_temp_file {basename} {
return [file join $dir $basename]
}
+# Rename file A to file B, if B does not already exists. Otherwise, leave B
+# as is and delete A. Return 1 if rename happened.
+
+proc tentative_rename { a b } {
+ global errorInfo errorCode
+ set code [catch {file rename -- $a $b} result]
+ if { $code == 1 && [lindex $errorCode 0] == "POSIX" \
+ && [lindex $errorCode 1] == "EEXIST" } {
+ file delete $a
+ return 0
+ }
+ if {$code == 1} {
+ return -code error -errorinfo $errorInfo -errorcode $errorCode $result
+ } elseif {$code > 1} {
+ return -code $code $result
+ }
+ return 1
+}
+
+# Create a file with name FILENAME and contents TXT in the cache directory.
+# If EXECUTABLE, mark the new file for execution.
+
+proc cached_file { filename txt {executable 0}} {
+ set filename [make_gdb_parallel_path cache $filename]
+
+ if { [file exists $filename] } {
+ return $filename
+ }
+
+ set dir [file dirname $filename]
+ file mkdir $dir
+
+ set tmp_filename $filename.[pid]
+ set fd [open $tmp_filename w]
+ puts $fd $txt
+ close $fd
+
+ if { $executable } {
+ exec chmod +x $tmp_filename
+ }
+ tentative_rename $tmp_filename $filename
+
+ return $filename
+}
+
# Set 'testfile', 'srcfile', and 'binfile'.
#
# ARGS is a list of source file specifications.
# if the banned variables and procedures are already traced.
set banned_traced 0
-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 gdb_test_timeout
- 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 &]
+# Global array that holds the name of all global variables at the time
+# a test script is started. After the test script has completed any
+# global not in this list is deleted.
+array set gdb_known_globals {}
- # Wait for the watches; hopefully this is long enough.
- sleep 2
+# Setup the GDB_KNOWN_GLOBALS array with the names of all current
+# global variables.
+proc gdb_setup_known_globals {} {
+ global gdb_known_globals
- # 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 $fd
+ array set gdb_known_globals {}
+ foreach varname [info globals] {
+ set gdb_known_globals($varname) 1
}
+}
- # Block writes to all banned variables, and invocation of all
- # banned procedures...
- global banned_variables
- global banned_procedures
- global banned_traced
- if (!$banned_traced) {
- foreach banned_var $banned_variables {
- global "$banned_var"
- trace add variable "$banned_var" write error
- }
- foreach banned_proc $banned_procedures {
- global "$banned_proc"
- trace add execution "$banned_proc" enter error
+# Cleanup the global namespace. Any global not in the
+# GDB_KNOWN_GLOBALS array is unset, this ensures we don't "leak"
+# globals from one test script to another.
+proc gdb_cleanup_globals {} {
+ global gdb_known_globals gdb_persistent_globals
+
+ foreach varname [info globals] {
+ if {![info exists gdb_known_globals($varname)]} {
+ if { [info exists gdb_persistent_globals($varname)] } {
+ continue
+ }
+ uplevel #0 unset $varname
}
- set banned_traced 1
}
+}
- # We set LC_ALL, LC_CTYPE, and LANG to C so that we get the same
- # messages as expected.
- setenv LC_ALL C
- setenv LC_CTYPE C
- setenv LANG C
-
- # Don't let a .inputrc file or an existing setting of INPUTRC mess up
- # the test results. Even if /dev/null doesn't exist on the particular
- # platform, the readline library will use the default setting just by
- # failing to open the file. OTOH, opening /dev/null successfully will
- # also result in the default settings being used since nothing will be
- # read from this file.
- setenv INPUTRC "/dev/null"
-
- # The gdb.base/readline.exp arrow key test relies on the standard VT100
- # bindings, so make sure that an appropriate terminal is selected.
- # The same bug doesn't show up if we use ^P / ^N instead.
- setenv TERM "vt100"
-
- # Some tests (for example gdb.base/maint.exp) shell out from gdb to use
- # grep. Clear GREP_OPTIONS to make the behavior predictable,
- # especially having color output turned on can cause tests to fail.
- setenv GREP_OPTIONS ""
-
- # Clear $gdbserver_reconnect_p.
- global gdbserver_reconnect_p
- set gdbserver_reconnect_p 1
- unset gdbserver_reconnect_p
+# Create gdb_tcl_unknown, a copy tcl's ::unknown, provided it's present as a
+# proc.
+set temp [interp create]
+if { [interp eval $temp "info procs ::unknown"] != "" } {
+ set old_args [interp eval $temp "info args ::unknown"]
+ set old_body [interp eval $temp "info body ::unknown"]
+ eval proc gdb_tcl_unknown {$old_args} {$old_body}
+}
+interp delete $temp
+unset temp
- return [default_gdb_init $test_file_name]
+# GDB implementation of ${tool}_init. Called right before executing the
+# test-case.
+# Overridable function -- you can override this function in your
+# baseboard file.
+proc gdb_init { args } {
+ # A baseboard file overriding this proc and calling the default version
+ # should behave the same as this proc. So, don't add code here, but to
+ # the default version instead.
+ return [default_gdb_init {*}$args]
}
+# GDB implementation of ${tool}_finish. Called right after executing the
+# test-case.
proc gdb_finish { } {
global gdbserver_reconnect_p
global gdb_prompt
global cleanfiles
+ global known_globals
+
+ if { [info procs ::gdb_tcl_unknown] != "" } {
+ # Restore dejagnu's version of proc unknown.
+ rename ::unknown ""
+ rename ::dejagnu_unknown ::unknown
+ }
# Exit first, so that the files are no longer in use.
gdb_exit
}
set banned_traced 0
}
+
+ global gdb_finish_hooks
+ foreach gdb_finish_hook $gdb_finish_hooks {
+ $gdb_finish_hook
+ }
+ set gdb_finish_hooks [list]
+
+ gdb_cleanup_globals
}
global debug_format
proc get_debug_format { } {
global gdb_prompt
- global verbose
global expect_out
global debug_format
send_gdb "run\n"
gdb_expect {
-re "The program .* has been started already.*y or n. $" {
- send_gdb "y\n"
+ send_gdb "y\n" answer
exp_continue
}
-re "Starting program.*$gdb_prompt $"\
}
}
-# 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.
+# Return true if EXECUTABLE contains a .gdb_index or .debug_names index section.
-gdb_caching_proc gdb_skip_float_test {
- if [target_info exists gdb,skip_float_tests] {
+proc exec_has_index_section { executable } {
+ set readelf_program [gdb_find_readelf]
+ set res [catch {exec $readelf_program -S $executable \
+ | grep -E "\.gdb_index|\.debug_names" }]
+ if { $res == 0 } {
return 1
}
+ return 0
+}
- # 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.
+# Return list with major and minor version of readelf, or an empty list.
+gdb_caching_proc readelf_version {
+ set readelf_program [gdb_find_readelf]
+ set res [catch {exec $readelf_program --version} output]
+ if { $res != 0 } {
+ return [list]
+ }
+ set lines [split $output \n]
+ set line [lindex $lines 0]
+ set res [regexp {[ \t]+([0-9]+)[.]([0-9]+)[^ \t]*$} \
+ $line dummy major minor]
+ if { $res != 1 } {
+ return [list]
+ }
+ return [list $major $minor]
+}
+
+# Return 1 if readelf prints the PIE flag, 0 if is doesn't, and -1 if unknown.
+proc readelf_prints_pie { } {
+ set version [readelf_version]
+ if { [llength $version] == 0 } {
+ return -1
+ }
+ set major [lindex $version 0]
+ set minor [lindex $version 1]
+ # It would be better to construct a PIE executable and test if the PIE
+ # flag is printed by readelf, but we cannot reliably construct a PIE
+ # executable if the multilib_flags dictate otherwise
+ # (--target_board=unix/-no-pie/-fno-PIE).
+ return [version_at_least $major $minor 2 26]
+}
+
+# Return 1 if EXECUTABLE is a Position Independent Executable, 0 if it is not,
+# and -1 if unknown.
+
+proc exec_is_pie { executable } {
+ set res [readelf_prints_pie]
+ if { $res != 1 } {
+ return -1
+ }
+ set readelf_program [gdb_find_readelf]
+ # We're not testing readelf -d | grep "FLAGS_1.*Flags:.*PIE"
+ # because the PIE flag is not set by all versions of gold, see PR
+ # binutils/26039.
+ set res [catch {exec $readelf_program -h $executable} output]
+ if { $res != 0 } {
+ return -1
+ }
+ set res [regexp -line {^[ \t]*Type:[ \t]*DYN \(Shared object file\)$} \
+ $output]
+ if { $res == 1 } {
+ return 1
+ }
+ return 0
+}
+
+# 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.
+
+gdb_caching_proc gdb_skip_float_test {
+ if [target_info exists gdb,skip_float_tests] {
+ 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*"] } {
# Test the output of GDB_COMMAND matches the pattern obtained
# by concatenating all elements of EXPECTED_LINES. This makes
# it possible to split otherwise very long string into pieces.
-# If third argument is not empty, it's used as the name of the
+# If third argument TESTNAME is not empty, it's used as the name of the
# test to be printed on pass/fail.
-proc help_test_raw { gdb_command expected_lines args } {
- set message $gdb_command
- if [llength $args]>0 then {
- set message [lindex $args 0]
- }
+proc help_test_raw { gdb_command expected_lines {testname {}} } {
set expected_output [join $expected_lines ""]
- gdb_test "${gdb_command}" "${expected_output}" $message
+ if {$testname != {}} {
+ gdb_test "${gdb_command}" "${expected_output}" $testname
+ return
+ }
+
+ gdb_test "${gdb_command}" "${expected_output}"
}
-# Test the output of "help COMMAND_CLASS". EXPECTED_INITIAL_LINES
+# A regexp that matches the end of help CLASS|PREFIX_COMMAND
+set help_list_trailer {
+ "Type \"apropos word\" to search for commands related to \"word\"\.[\r\n]+"
+ "Type \"apropos -v word\" for full documentation of commands related to \"word\"\.[\r\n]+"
+ "Command name abbreviations are allowed if unambiguous\."
+}
+
+# Test the output of "help COMMAND_CLASS". EXPECTED_INITIAL_LINES
# 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.
+# before the list of commands in that class.
+# LIST_OF_COMMANDS are regular expressions that should match the
+# list of commands in that class. If empty, the command list will be
+# matched automatically. The presence of standard epilogue will be tested
+# automatically.
+# If last argument TESTNAME is not empty, it's used as the name of the
+# test to be printed on pass/fail.
# 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 } {
+proc test_class_help { command_class expected_initial_lines {list_of_commands {}} {testname {}} } {
+ global help_list_trailer
+ if {[llength $list_of_commands]>0} {
+ set l_list_of_commands {"List of commands:[\r\n]+[\r\n]+"}
+ set l_list_of_commands [concat $l_list_of_commands $list_of_commands]
+ set l_list_of_commands [concat $l_list_of_commands {"[\r\n]+[\r\n]+"}]
+ } else {
+ set l_list_of_commands {"List of commands\:.*[\r\n]+"}
+ }
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]+"
- "Command name abbreviations are allowed if unambiguous\."
}
- set l_entire_body [concat $expected_initial_lines $l_stock_body]
+ set l_entire_body [concat $expected_initial_lines $l_list_of_commands \
+ $l_stock_body $help_list_trailer]
+
+ help_test_raw "help ${command_class}" $l_entire_body $testname
+}
- eval [list help_test_raw "help ${command_class}" $l_entire_body] $args
+# Like test_class_help but specialised to test "help user-defined".
+proc test_user_defined_class_help { {list_of_commands {}} {testname {}} } {
+ test_class_help "user-defined" {
+ "User-defined commands\.[\r\n]+"
+ "The commands in this class are those defined by the user\.[\r\n]+"
+ "Use the \"define\" command to define a command\.[\r\n]+"
+ } $list_of_commands $testname
}
+
# COMMAND_LIST should have either one element -- command to test, or
# two elements -- abbreviated command to test, and full command the first
# element is abbreviation of.
# before the list of subcommands. The presence of
# subcommand list and standard epilogue will be tested automatically.
proc test_prefix_command_help { command_list expected_initial_lines args } {
+ global help_list_trailer
set command [lindex $command_list 0]
if {[llength $command_list]>1} {
set full_command [lindex $command_list 1]
# be expanded in this list.
set l_stock_body [list\
"List of $full_command subcommands\:.*\[\r\n\]+"\
- "Type \"help $full_command\" followed by $full_command subcommand 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]
+ "Type \"help $full_command\" followed by $full_command subcommand name for full documentation\.\[\r\n\]+"]
+ set l_entire_body [concat $expected_initial_lines $l_stock_body $help_list_trailer]
if {[llength $args]>0} {
help_test_raw "help ${command}" $l_entire_body [lindex $args 0]
} else {
}
set func gdb_compile
- set func_index [lsearch -regexp $options {^(pthreads|shlib|shlib_pthreads)$}]
+ set func_index [lsearch -regexp $options {^(pthreads|shlib|shlib_pthreads|openmp)$}]
if {$func_index != -1} {
set func "${func}_[lindex $options $func_index]"
}
if { ! [regexp "^/" "$s"] } then {
set s "$srcdir/$subdir/$s"
}
- if { [gdb_compile "${s}" "${binfile}${i}.o" object $local_options] != "" } {
+ if { [$func "${s}" "${binfile}${i}.o" object $local_options] != "" } {
untested $testname
return -1
}
# Starts fresh GDB binary and loads an optional executable into GDB.
# Usage: clean_restart [executable]
# EXECUTABLE is the basename of the binary.
+# Return -1 if starting gdb or loading the executable failed.
proc clean_restart { args } {
global srcdir
global subdir
+ global errcnt
+ global warncnt
if { [llength $args] > 1 } {
error "bad number of args: [llength $args]"
}
gdb_exit
+
+ # This is a clean restart, so reset error and warning count.
+ set errcnt 0
+ set warncnt 0
+
+ # We'd like to do:
+ # if { [gdb_start] == -1 } {
+ # return -1
+ # }
+ # but gdb_start is a ${tool}_start proc, which doesn't have a defined
+ # return value. So instead, we test for errcnt.
gdb_start
+ if { $errcnt > 0 } {
+ return -1
+ }
+
gdb_reinitialize_dir $srcdir/$subdir
if { [llength $args] >= 1 } {
set executable [lindex $args 0]
set binfile [standard_output_file ${executable}]
- gdb_load ${binfile}
+ return [gdb_load ${binfile}]
}
+
+ return 0
}
# Prepares for testing by calling build_executable_full, then
gdb_test_multiple "print${fmt} ${exp}" "$test" {
-re "\\$\[0-9\]* = (\[^\r\n\]*)\[\r\n\]*$gdb_prompt $" {
set val $expect_out(1,string)
- pass "$test ($val)"
+ pass "$test"
+ }
+ timeout {
+ fail "$test (timeout)"
+ }
+ }
+ return ${val}
+}
+
+# Retrieve the value of local var EXP in the inferior. DEFAULT is used as
+# fallback if print fails. TEST is the test message to use. It can be
+# omitted, in which case a test message is built from EXP.
+
+proc get_local_valueof { exp default {test ""} } {
+ global gdb_prompt
+
+ if {$test == "" } {
+ set test "get local valueof \"${exp}\""
+ }
+
+ set val ${default}
+ gdb_test_multiple "info locals ${exp}" "$test" {
+ -re "$exp = (\[^\r\n\]*)\[\r\n\]*$gdb_prompt $" {
+ set val $expect_out(1,string)
+ pass "$test"
}
timeout {
fail "$test (timeout)"
return [eval file join [lrange $full_split $len end]]
}
-# Log gdb command line and script if requested.
-if {[info exists TRANSCRIPT]} {
- rename send_gdb real_send_gdb
- rename remote_spawn real_remote_spawn
- rename remote_close real_remote_close
-
- global gdb_transcript
- set gdb_transcript ""
-
- global gdb_trans_count
- set gdb_trans_count 1
-
- proc remote_spawn {args} {
- global gdb_transcript gdb_trans_count outdir
-
- if {$gdb_transcript != ""} {
- close $gdb_transcript
- }
- set gdb_transcript [open [file join $outdir transcript.$gdb_trans_count] w]
- puts $gdb_transcript [lindex $args 1]
- incr gdb_trans_count
-
- return [uplevel real_remote_spawn $args]
- }
-
- proc remote_close {args} {
- global gdb_transcript
-
- if {$gdb_transcript != ""} {
- close $gdb_transcript
- set gdb_transcript ""
- }
-
- return [uplevel real_remote_close $args]
- }
-
- proc send_gdb {args} {
- global gdb_transcript
-
- if {$gdb_transcript != ""} {
- puts -nonewline $gdb_transcript [lindex $args 0]
- }
-
- return [uplevel real_send_gdb $args]
- }
-}
-
# If GDB_PARALLEL exists, then set up the parallel-mode directories.
if {[info exists GDB_PARALLEL]} {
if {[is_remote host]} {
}
clean_restart $obj
- gdb_start_cmd
+ if ![runto_main] {
+ return 0
+ }
set supports_schedule_locking -1
set current_schedule_locking_mode ""
return $supports_schedule_locking
}
+# Return 1 if compiler supports use of nested functions. Otherwise,
+# return 0.
+
+gdb_caching_proc support_nested_function_tests {
+ # Compile a test program containing a nested function
+ return [gdb_can_simple_compile nested_func {
+ int main () {
+ int foo () {
+ return 0;
+ }
+ return foo ();
+ }
+ } executable]
+}
+
# gdb_target_symbol returns the provided symbol with the correct prefix
# prepended. (See gdb_target_symbol_prefix, above.)
}
}
+# Override the 'cd' builtin with a version that ensures that the
+# log file keeps pointing at the same file. We need this because
+# unfortunately the path to the log file is recorded using an
+# relative path name, and, we sometimes need to close/reopen the log
+# after changing the current directory. See get_compiler_info.
+
+rename cd builtin_cd
+
+proc cd { dir } {
+
+ # Get the existing log file flags.
+ set log_file_info [log_file -info]
+
+ # Split the flags into args and file name.
+ set log_file_flags ""
+ set log_file_file ""
+ foreach arg [ split "$log_file_info" " "] {
+ if [string match "-*" $arg] {
+ lappend log_file_flags $arg
+ } else {
+ lappend log_file_file $arg
+ }
+ }
+
+ # If there was an existing file, ensure it is an absolute path, and then
+ # reset logging.
+ if { $log_file_file != "" } {
+ set log_file_file [file normalize $log_file_file]
+ log_file
+ log_file $log_file_flags "$log_file_file"
+ }
+
+ # Call the builtin version of cd.
+ builtin_cd $dir
+}
+
+# Return a list of all languages supported by GDB, suitable for use in
+# 'set language NAME'. This doesn't include either the 'local' or
+# 'auto' keywords.
+proc gdb_supported_languages {} {
+ return [list c objective-c c++ d go fortran modula-2 asm pascal \
+ opencl rust minimal ada]
+}
+
+# Check if debugging is enabled for gdb.
+
+proc gdb_debug_enabled { } {
+ global gdbdebug
+
+ # If not already read, get the debug setting from environment or board setting.
+ if {![info exists gdbdebug]} {
+ global env
+ if [info exists env(GDB_DEBUG)] {
+ set gdbdebug $env(GDB_DEBUG)
+ } elseif [target_info exists gdb,debug] {
+ set gdbdebug [target_info gdb,debug]
+ } else {
+ return 0
+ }
+ }
+
+ # Ensure it not empty.
+ return [expr { $gdbdebug != "" }]
+}
+
+# Turn on debugging if enabled, or reset if already on.
+
+proc gdb_debug_init { } {
+
+ global gdb_prompt
+
+ if ![gdb_debug_enabled] {
+ return;
+ }
+
+ # First ensure logging is off.
+ send_gdb "set logging off\n"
+
+ set debugfile [standard_output_file gdb.debug]
+ send_gdb "set logging file $debugfile\n"
+
+ send_gdb "set logging debugredirect\n"
+
+ global gdbdebug
+ foreach entry [split $gdbdebug ,] {
+ send_gdb "set debug $entry 1\n"
+ }
+
+ # Now that everything is set, enable logging.
+ send_gdb "set logging on\n"
+ gdb_expect 10 {
+ -re "Copying output to $debugfile.*Redirecting debug output to $debugfile.*$gdb_prompt $" {}
+ timeout { warning "Couldn't set logging file" }
+ }
+}
+
+# Check if debugging is enabled for gdbserver.
+
+proc gdbserver_debug_enabled { } {
+ # Always disabled for GDB only setups.
+ return 0
+}
+
+# Open the file for logging gdb input
+
+proc gdb_stdin_log_init { } {
+ gdb_persistent_global in_file
+
+ if {[info exists in_file]} {
+ # Close existing file.
+ catch "close $in_file"
+ }
+
+ set logfile [standard_output_file_with_gdb_instance gdb.in]
+ set in_file [open $logfile w]
+}
+
+# Write to the file for logging gdb input.
+# TYPE can be one of the following:
+# "standard" : Default. Standard message written to the log
+# "answer" : Answer to a question (eg "Y"). Not written the log.
+# "optional" : Optional message. Not written to the log.
+
+proc gdb_stdin_log_write { message {type standard} } {
+
+ global in_file
+ if {![info exists in_file]} {
+ return
+ }
+
+ # Check message types.
+ switch -regexp -- $type {
+ "answer" {
+ return
+ }
+ "optional" {
+ return
+ }
+ }
+
+ #Write to the log
+ puts -nonewline $in_file "$message"
+}
+
+# Write the command line used to invocate gdb to the cmd file.
+
+proc gdb_write_cmd_file { cmdline } {
+ set logfile [standard_output_file_with_gdb_instance gdb.cmd]
+ set cmd_file [open $logfile w]
+ puts $cmd_file $cmdline
+ catch "close $cmd_file"
+}
+
+# Compare contents of FILE to string STR. Pass with MSG if equal, otherwise
+# fail with MSG.
+
+proc cmp_file_string { file str msg } {
+ if { ![file exists $file]} {
+ fail "$msg"
+ return
+ }
+
+ set caught_error [catch {
+ set fp [open "$file" r]
+ set file_contents [read $fp]
+ close $fp
+ } error_message]
+ if { $caught_error } then {
+ error "$error_message"
+ fail "$msg"
+ return
+ }
+
+ if { $file_contents == $str } {
+ pass "$msg"
+ } else {
+ fail "$msg"
+ }
+}
+
+# Does the compiler support CTF debug output using '-gt' compiler
+# flag? If not then we should skip these tests. We should also
+# skip them if libctf was explicitly disabled.
+
+gdb_caching_proc skip_ctf_tests {
+ global enable_libctf
+
+ if {$enable_libctf eq "no"} {
+ return 1
+ }
+
+ return ![gdb_can_simple_compile ctfdebug {
+ int main () {
+ return 0;
+ }
+ } executable "additional_flags=-gt"]
+}
+
+# Return 1 if compiler supports -gstatement-frontiers. Otherwise,
+# return 0.
+
+gdb_caching_proc supports_statement_frontiers {
+ return [gdb_can_simple_compile supports_statement_frontiers {
+ int main () {
+ return 0;
+ }
+ } executable "additional_flags=-gstatement-frontiers"]
+}
+
+# Return 1 if compiler supports -mmpx -fcheck-pointer-bounds. Otherwise,
+# return 0.
+
+gdb_caching_proc supports_mpx_check_pointer_bounds {
+ set flags "additional_flags=-mmpx additional_flags=-fcheck-pointer-bounds"
+ return [gdb_can_simple_compile supports_mpx_check_pointer_bounds {
+ int main () {
+ return 0;
+ }
+ } executable $flags]
+}
+
+# Return 1 if compiler supports -fcf-protection=. Otherwise,
+# return 0.
+
+gdb_caching_proc supports_fcf_protection {
+ return [gdb_can_simple_compile supports_fcf_protection {
+ int main () {
+ return 0;
+ }
+ } executable "additional_flags=-fcf-protection=full"]
+}
+
+# Return 1 if symbols were read in using -readnow. Otherwise, return 0.
+
+proc readnow { } {
+ set cmd "maint print objfiles"
+ gdb_test_multiple $cmd "" {
+ -re -wrap "\r\n.gdb_index: faked for \"readnow\"\r\n.*" {
+ return 1
+ }
+ -re -wrap "" {
+ return 0
+ }
+ }
+
+ return 0
+}
+
+# Return 1 if partial symbols are available. Otherwise, return 0.
+
+proc psymtabs_p { } {
+ global gdb_prompt
+
+ set cmd "maint info psymtab"
+ gdb_test_multiple $cmd "" {
+ -re "$cmd\r\n$gdb_prompt $" {
+ return 0
+ }
+ -re -wrap "" {
+ return 1
+ }
+ }
+
+ return 0
+}
+
+# Verify that partial symtab expansion for $filename has state $readin.
+
+proc verify_psymtab_expanded { filename readin } {
+ global gdb_prompt
+
+ set cmd "maint info psymtab"
+ set test "$cmd: $filename: $readin"
+ set re [multi_line \
+ " \{ psymtab \[^\r\n\]*$filename\[^\r\n\]*" \
+ " readin $readin" \
+ ".*"]
+
+ gdb_test_multiple $cmd $test {
+ -re "$cmd\r\n$gdb_prompt $" {
+ unsupported $gdb_test_name
+ }
+ -re -wrap $re {
+ pass $gdb_test_name
+ }
+ }
+}
+
+# Add a .gdb_index section to PROGRAM.
+# PROGRAM is assumed to be the output of standard_output_file.
+# Returns the 0 if there is a failure, otherwise 1.
+
+proc add_gdb_index { program } {
+ global srcdir GDB env BUILD_DATA_DIRECTORY
+ set contrib_dir "$srcdir/../contrib"
+ set env(GDB) "$GDB --data-directory=$BUILD_DATA_DIRECTORY"
+ set result [catch "exec $contrib_dir/gdb-add-index.sh $program" output]
+ if { $result != 0 } {
+ verbose -log "result is $result"
+ verbose -log "output is $output"
+ return 0
+ }
+
+ return 1
+}
+
+# Add a .gdb_index section to PROGRAM, unless it alread has an index
+# (.gdb_index/.debug_names). Gdb doesn't support building an index from a
+# program already using one. Return 1 if a .gdb_index was added, return 0
+# if it already contained an index, and -1 if an error occurred.
+
+proc ensure_gdb_index { binfile } {
+ set testfile [file tail $binfile]
+ set test "check if index present"
+ gdb_test_multiple "mt print objfiles ${testfile}" $test {
+ -re -wrap "gdb_index.*" {
+ return 0
+ }
+ -re -wrap "debug_names.*" {
+ return 0
+ }
+ -re -wrap "Psymtabs.*" {
+ if { [add_gdb_index $binfile] != "1" } {
+ return -1
+ }
+ return 1
+ }
+ }
+ return -1
+}
+
+# Return 1 if executable contains .debug_types section. Otherwise, return 0.
+
+proc debug_types { } {
+ global hex
+
+ set cmd "maint info sections"
+ gdb_test_multiple $cmd "" {
+ -re -wrap "at $hex: .debug_types.*" {
+ return 1
+ }
+ -re -wrap "" {
+ return 0
+ }
+ }
+
+ return 0
+}
+
+# Return the addresses in the line table for FILE for which is_stmt is true.
+
+proc is_stmt_addresses { file } {
+ global decimal
+ global hex
+
+ set is_stmt [list]
+
+ gdb_test_multiple "maint info line-table $file" "" {
+ -re "\r\n$decimal\[ \t\]+$decimal\[ \t\]+($hex)\[ \t\]+Y\[^\r\n\]*" {
+ lappend is_stmt $expect_out(1,string)
+ exp_continue
+ }
+ -re -wrap "" {
+ }
+ }
+
+ return $is_stmt
+}
+
+# Return 1 if hex number VAL is an element of HEXLIST.
+
+proc hex_in_list { val hexlist } {
+ # Normalize val by removing 0x prefix, and leading zeros.
+ set val [regsub ^0x $val ""]
+ set val [regsub ^0+ $val "0"]
+
+ set re 0x0*$val
+ set index [lsearch -regexp $hexlist $re]
+ return [expr $index != -1]
+}
+
+# Override proc NAME to proc OVERRIDE for the duration of the execution of
+# BODY.
+
+proc with_override { name override body } {
+ # Implementation note: It's possible to implement the override using
+ # rename, like this:
+ # rename $name save_$name
+ # rename $override $name
+ # set code [catch {uplevel 1 $body} result]
+ # rename $name $override
+ # rename save_$name $name
+ # but there are two issues here:
+ # - the save_$name might clash with an existing proc
+ # - the override is no longer available under its original name during
+ # the override
+ # So, we use this more elaborate but cleaner mechanism.
+
+ # Save the old proc.
+ set old_args [info args $name]
+ set old_body [info body $name]
+
+ # Install the override.
+ set new_args [info args $override]
+ set new_body [info body $override]
+ eval proc $name {$new_args} {$new_body}
+
+ # Execute body.
+ set code [catch {uplevel 1 $body} result]
+
+ # Restore old proc.
+ eval proc $name {$old_args} {$old_body}
+
+ # Return as appropriate.
+ if { $code == 1 } {
+ global errorInfo errorCode
+ return -code error -errorinfo $errorInfo -errorcode $errorCode $result
+ } elseif { $code > 1 } {
+ return -code $code $result
+ }
+
+ return $result
+}
+
+# Setup tuiterm.exp environment. To be used in test-cases instead of
+# "load_lib tuiterm.exp". Calls initialization function and schedules
+# finalization function.
+proc tuiterm_env { } {
+ load_lib tuiterm.exp
+
+ # Do initialization.
+ tuiterm_env_init
+
+ # Schedule finalization.
+ global gdb_finish_hooks
+ lappend gdb_finish_hooks tuiterm_env_finish
+}
+
+# Dejagnu has a version of note, but usage is not allowed outside of dejagnu.
+# Define a local version.
+proc gdb_note { message } {
+ verbose -- "NOTE: $message" 0
+}
+
+# Return 1 if compiler supports -fuse-ld=gold, otherwise return 0.
+gdb_caching_proc have_fuse_ld_gold {
+ set me "have_fuse_ld_gold"
+ set flags "additional_flags=-fuse-ld=gold"
+ set src { int main() { return 0; } }
+ return [gdb_simple_compile $me $src executable $flags]
+}
+
# Always load compatibility stuff.
load_lib future.exp