old-cross-binutils/gdb/testsuite/lib/gdb.exp

4641 lines
131 KiB
Text
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# Copyright 1992-2014 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
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This file was written by Fred Fish. (fnf@cygnus.com)
# Generic gdb subroutines that should work for any target. If these
# need to be modified for any target, it can be done with a variable
# or by passing arguments.
if {$tool == ""} {
# Tests would fail, logs on get_compiler_info() would be missing.
send_error "`site.exp' not found, run `make site.exp'!\n"
exit 2
}
load_lib libgloss.exp
load_lib cache.exp
global GDB
if [info exists 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]
}
}
verbose "using GDB = $GDB" 2
# GDBFLAGS is available for the user to set on the command line.
# E.g. make check RUNTESTFLAGS=GDBFLAGS=mumble
# Testcases may use it to add additional flags, but they must:
# - append new flags, not overwrite
# - restore the original value when done
global GDBFLAGS
if ![info exists GDBFLAGS] {
set GDBFLAGS ""
}
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 $BUILD_DATA_DIRECTORY"
}
# The variable gdb_prompt is a regexp which matches the gdb prompt.
# Set it if it is not already set.
global gdb_prompt
if ![info exists gdb_prompt] then {
set gdb_prompt "\[(\]gdb\[)\]"
}
# The variable fullname_syntax_POSIX is a regexp which matches a POSIX
# absolute path ie. /foo/
set fullname_syntax_POSIX {/[^\n]*/}
# The variable fullname_syntax_UNC is a regexp which matches a Windows
# UNC path ie. \\D\foo\
set fullname_syntax_UNC {\\\\[^\\]+\\[^\n]+\\}
# The variable fullname_syntax_DOS_CASE is a regexp which matches a
# particular DOS case that GDB most likely will output
# ie. \foo\, but don't match \\.*\
set fullname_syntax_DOS_CASE {\\[^\\][^\n]*\\}
# The variable fullname_syntax_DOS is a regexp which matches a DOS path
# ie. a:\foo\ && a:foo\
set fullname_syntax_DOS {[a-zA-Z]:[^\n]*\\}
# The variable fullname_syntax is a regexp which matches what GDB considers
# an absolute path. It is currently debatable if the Windows style paths
# d:foo and \abc should be considered valid as an absolute path.
# Also, the purpse of this regexp is not to recognize a well formed
# absolute path, but to say with certainty that a path is absolute.
set fullname_syntax "($fullname_syntax_POSIX|$fullname_syntax_UNC|$fullname_syntax_DOS_CASE|$fullname_syntax_DOS)"
# Needed for some tests under Cygwin.
global EXEEXT
global env
if ![info exists env(EXEEXT)] {
set EXEEXT ""
} else {
set EXEEXT $env(EXEEXT)
}
set octal "\[0-7\]+"
set inferior_exited_re "(\\\[Inferior \[0-9\]+ \\(.*\\) exited)"
### Only procedures should come after this point.
#
# gdb_version -- extract and print the version number of GDB
#
proc default_gdb_version {} {
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 version ""
regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
if ![is_remote host] {
clone_output "[which $GDB] version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
} else {
clone_output "$GDB on remote host version $version $INTERNAL_GDBFLAGS $GDBFLAGS\n"
}
}
proc 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 {} {
global verbose
global GDB
global gdb_prompt
send_gdb "file\n"
gdb_expect 60 {
-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. $" {
send_gdb "y\n"
exp_continue
}
-re "Discard symbol table from .*y or n.*$" {
send_gdb "y\n"
exp_continue
}
-re "$gdb_prompt $" {}
timeout {
perror "couldn't unload file in $GDB (timeout)."
return -1
}
}
return 0
}
# Many of the tests depend on setting breakpoints at various places and
# running until that breakpoint is reached. At times, we want to start
# with a clean-slate with respect to breakpoints, so this utility proc
# lets us do this without duplicating this code everywhere.
#
proc delete_breakpoints {} {
global gdb_prompt
# we need a larger timeout value here or this thing just confuses
# itself. May need a better implementation if possible. - guo
#
send_gdb "delete breakpoints\n"
gdb_expect 100 {
-re "Delete all breakpoints.*y or n.*$" {
send_gdb "y\n"
exp_continue
}
-re "$gdb_prompt $" { # This happens if there were no breakpoints
}
timeout { perror "Delete all breakpoints in delete_breakpoints (timeout)" ; return }
}
send_gdb "info breakpoints\n"
gdb_expect 100 {
-re "No breakpoints or watchpoints..*$gdb_prompt $" {}
-re "$gdb_prompt $" { perror "breakpoints not deleted" ; return }
-re "Delete all breakpoints.*or n.*$" {
send_gdb "y\n"
exp_continue
}
timeout { perror "info breakpoints (timeout)" ; return }
}
}
# Generic run command.
#
# The second pattern below matches up to the first newline *only*.
# Using ``.*$'' could swallow up output that we attempt to match
# elsewhere.
#
# N.B. This function does not wait for gdb to return to the prompt,
# that is the caller's responsibility.
proc gdb_run_cmd {args} {
global gdb_prompt use_gdb_stub
if [target_info exists gdb_init_command] {
send_gdb "[target_info gdb_init_command]\n"
gdb_expect 30 {
-re "$gdb_prompt $" { }
default {
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
}
send_gdb "continue\n"
gdb_expect 60 {
-re "Continu\[^\r\n\]*\[\r\n\]" {}
default {}
}
return
}
if [target_info exists gdb,start_symbol] {
set start [target_info gdb,start_symbol]
} else {
set start "start"
}
send_gdb "jump *$start\n"
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
}
set start_attempt [expr $start_attempt + 1]
gdb_expect 30 {
-re "Continuing at \[^\r\n\]*\[\r\n\]" {
set start_attempt 0
}
-re "No symbol \"_start\" in current.*$gdb_prompt $" {
perror "Can't find start symbol to run in gdb_run"
return
}
-re "No symbol \"start\" in current.*$gdb_prompt $" {
send_gdb "jump *_start\n"
}
-re "No symbol.*context.*$gdb_prompt $" {
set start_attempt 0
}
-re "Line.* Jump anyway.*y or n. $" {
send_gdb "y\n"
}
-re "The program is not being run.*$gdb_prompt $" {
if { [gdb_reload] != 0 } {
return
}
send_gdb "jump *$start\n"
}
timeout {
perror "Jump to start() failed (timeout)"
return
}
}
}
return
}
if [target_info exists gdb,do_reload_on_run] {
if { [gdb_reload] != 0 } {
return
}
}
send_gdb "run $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"
exp_continue
}
-notransfer -re "Starting program: \[^\r\n\]*" {}
-notransfer -re "$gdb_prompt $" {
# There is no more input expected.
}
}
}
# Generic start command. Return 0 if we could start the program, -1
# if we could not.
#
# N.B. This function does not wait for gdb to return to the prompt,
# that is the caller's responsibility.
proc gdb_start_cmd {args} {
global gdb_prompt use_gdb_stub
if [target_info exists gdb_init_command] {
send_gdb "[target_info gdb_init_command]\n"
gdb_expect 30 {
-re "$gdb_prompt $" { }
default {
perror "gdb_init_command for target failed"
return -1
}
}
}
if $use_gdb_stub {
return -1
}
send_gdb "start $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"
exp_continue
}
-notransfer -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,
# message, no-message, and passfail.
# 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 $args allow-pending] != -1} {
set pending_response y
}
set break_command "break"
set break_message "Breakpoint"
if {[lsearch -exact $args temporary] != -1} {
set break_command "tbreak"
set break_message "Temporary breakpoint"
}
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 .*: file .*, line $decimal.\r\n$gdb_prompt $" {}
-re "$break_message \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {}
-re "$break_message \[0-9\]* at .*$gdb_prompt $" {}
-re "$break_message \[0-9\]* \\(.*\\) pending.*$gdb_prompt $" {
if {$pending_response == "n"} {
if { $print_fail } {
fail $test_name
}
return 0
}
}
-re "Make breakpoint pending.*y or \\\[n\\\]. $" {
send_gdb "$pending_response\n"
exp_continue
}
-re "A problem internal to GDB has been detected" {
if { $print_fail } {
fail "$test_name (GDB internal error)"
}
gdb_internal_error_resync
return 0
}
-re "$gdb_prompt $" {
if { $print_fail } {
fail $test_name
}
return 0
}
eof {
if { $print_fail } {
fail "$test_name (eof)"
}
return 0
}
timeout {
if { $print_fail } {
fail "$test_name (timeout)"
}
return 0
}
}
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 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
global decimal
delete_breakpoints
# 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} $args] {
return 0
}
gdb_run_cmd
# the "at foo.c:36" output we get with -g.
# the "in func" output we get without -g.
gdb_expect 30 {
-re "Break.* at .*:$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 $" {
if { $print_fail } {
unsupported "Non-stop mode not supported"
}
return 0
}
-re ".*A problem internal to GDB has been detected" {
if { $print_fail } {
fail "$test_name (GDB internal error)"
}
gdb_internal_error_resync
return 0
}
-re "$gdb_prompt $" {
if { $print_fail } {
fail $test_name
}
return 0
}
eof {
if { $print_fail } {
fail "$test_name (eof)"
}
return 0
}
timeout {
if { $print_fail } {
fail "$test_name (timeout)"
}
return 0
}
}
if { $print_pass } {
pass $test_name
}
return 1
}
# Ask gdb to run until we hit a breakpoint at main.
#
# N.B. This function deletes all existing breakpoints.
# If you don't want that, use gdb_start_cmd.
proc runto_main { } {
return [runto main no-message]
}
### Continue, and expect to hit a breakpoint.
### Report a pass or fail, depending on whether it seems to have
### worked. Use NAME as part of the test name; each call to
### continue_to_breakpoint should use a NAME which is unique within
### that test file.
proc gdb_continue_to_breakpoint {name {location_pattern .*}} {
global gdb_prompt
set full_name "continue to breakpoint: $name"
send_gdb "continue\n"
gdb_expect {
-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)"
}
}
}
# gdb_internal_error_resync:
#
# Answer the questions GDB asks after it reports an internal error
# until we get back to a GDB prompt. Decline to quit the debugging
# session, and decline to create a core file. Return non-zero if the
# resync succeeds.
#
# This procedure just answers whatever questions come up until it sees
# a GDB prompt; it doesn't require you to have matched the input up to
# any specific point. However, it only answers questions it sees in
# the output itself, so if you've matched a question, you had better
# answer it yourself before calling this.
#
# You can use this function thus:
#
# gdb_expect {
# ...
# -re ".*A problem internal to GDB has been detected" {
# gdb_internal_error_resync
# }
# ...
# }
#
proc gdb_internal_error_resync {} {
global gdb_prompt
verbose -log "Resyncing due to internal error."
set count 0
while {$count < 10} {
gdb_expect {
-re "Quit this debugging session\\? \\(y or n\\) $" {
send_gdb "n\n"
incr count
}
-re "Create a core file of GDB\\? \\(y or n\\) $" {
send_gdb "n\n"
incr count
}
-re "$gdb_prompt $" {
# We're resynchronized.
return 1
}
timeout {
perror "Could not resync from internal error (timeout)"
return 0
}
}
}
perror "Could not resync from internal error (resync count exceeded)"
return 0
}
# gdb_test_multiple COMMAND MESSAGE 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.
# 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.
# Unlike patterns for gdb_test, these patterns should generally include
# the final newline and prompt.
#
# Returns:
# 1 if the test failed, according to a built-in failure pattern
# 0 if only user-supplied patterns matched
# -1 if there was an internal error.
#
# You can use this function thus:
#
# gdb_test_multiple "print foo" "test foo" {
# -re "expected output 1" {
# pass "print foo"
# }
# -re "expected output 2" {
# fail "print foo"
# }
# }
#
# The standard patterns, such as "Inferior exited..." and "A problem
# ...", all being implicitly appended to that list.
#
proc gdb_test_multiple { command message user_code } {
global verbose use_gdb_stub
global gdb_prompt
global GDB
global inferior_exited_re
upvar timeout timeout
upvar expect_out expect_out
if { $message == "" } {
set message $command
}
if [string match "*\[\r\n\]" $command] {
error "Invalid trailing newline in \"$message\" test"
}
if [string match "*\[\r\n\]*" $message] {
error "Invalid newline in \"$message\" test"
}
if {$use_gdb_stub
&& [regexp -nocase {^\s*(r|run|star|start|at|att|atta|attac|attach)\M} \
$command]} {
error "gdbserver does not support $command without extended-remote"
}
# TCL/EXPECT WART ALERT
# Expect does something very strange when it receives a single braced
# argument. It splits it along word separators and performs substitutions.
# This means that { "[ab]" } is evaluated as "[ab]", but { "\[ab\]" } is
# evaluated as "\[ab\]". But that's not how TCL normally works; inside a
# double-quoted list item, "\[ab\]" is just a long way of representing
# "[ab]", because the backslashes will be removed by lindex.
# Unfortunately, there appears to be no easy way to duplicate the splitting
# that expect will do from within TCL. And many places make use of the
# "\[0-9\]" construct, so we need to support that; and some places make use
# of the "[func]" construct, so we need to support that too. In order to
# get this right we have to substitute quoted list elements differently
# from braced list elements.
# We do this roughly the same way that Expect does it. We have to use two
# lists, because if we leave unquoted newlines in the argument to uplevel
# they'll be treated as command separators, and if we escape newlines
# we mangle newlines inside of command blocks. This assumes that the
# input doesn't contain a pattern which contains actual embedded newlines
# at this point!
regsub -all {\n} ${user_code} { } subst_code
set subst_code [uplevel list $subst_code]
set processed_code ""
set patterns ""
set expecting_action 0
set expecting_arg 0
foreach item $user_code subst_item $subst_code {
if { $item == "-n" || $item == "-notransfer" || $item == "-nocase" } {
lappend processed_code $item
continue
}
if { $item == "-indices" || $item == "-re" || $item == "-ex" } {
lappend processed_code $item
continue
}
if { $item == "-timeout" } {
set expecting_arg 1
lappend processed_code $item
continue
}
if { $expecting_arg } {
set expecting_arg 0
lappend processed_code $item
continue
}
if { $expecting_action } {
lappend processed_code "uplevel [list $item]"
set expecting_action 0
# Cosmetic, no effect on the list.
append processed_code "\n"
continue
}
set expecting_action 1
lappend processed_code $subst_item
if {$patterns != ""} {
append patterns "; "
}
append patterns "\"$subst_item\""
}
# Also purely cosmetic.
regsub -all {\r} $patterns {\\r} patterns
regsub -all {\n} $patterns {\\n} patterns
if $verbose>2 then {
send_user "Sending \"$command\" to gdb\n"
send_user "Looking to match \"$patterns\"\n"
send_user "Message is \"$message\"\n"
}
set result -1
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"]
if { $foo < [expr $len - 1] } {
set str [string range "$string" 0 $foo]
if { [send_gdb "$str"] != "" } {
global suppress_flag
if { ! $suppress_flag } {
perror "Couldn't send $command to GDB."
}
fail "$message"
return $result
}
# since we're checking if each line of the multi-line
# command are 'accepted' by GDB here,
# we need to set -notransfer expect option so that
# command output is not lost for pattern matching
# - guo
gdb_expect 2 {
-notransfer -re "$multi_line_re$" { verbose "partial: match" 3 }
timeout { verbose "partial: timeout" 3 }
}
set string [string range "$string" [expr $foo + 1] end]
set multi_line_re "$multi_line_re.*\[\r\n\] *>"
} else {
break
}
}
if { "$string" != "" } {
if { [send_gdb "$string"] != "" } {
global suppress_flag
if { ! $suppress_flag } {
perror "Couldn't send $command to GDB."
}
fail "$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
}
-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 $" {
if ![isnative] then {
warning "Can`t communicate to remote target."
}
gdb_exit
gdb_start
set result -1
}
-re "Undefined\[a-z\]* command:.*$gdb_prompt $" {
perror "Undefined command \"$command\"."
fail "$message"
set result 1
}
-re "Ambiguous command.*$gdb_prompt $" {
perror "\"$command\" is not a unique command name."
fail "$message"
set result 1
}
-re "$inferior_exited_re with code \[0-9\]+.*$gdb_prompt $" {
if ![string match "" $message] then {
set errmsg "$message (the program exited)"
} else {
set errmsg "$command (the program exited)"
}
fail "$errmsg"
set result -1
}
-re "$inferior_exited_re normally.*$gdb_prompt $" {
if ![string match "" $message] then {
set errmsg "$message (the program exited)"
} else {
set errmsg "$command (the program exited)"
}
fail "$errmsg"
set result -1
}
-re "The program is not being run.*$gdb_prompt $" {
if ![string match "" $message] then {
set errmsg "$message (the program is no longer running)"
} else {
set errmsg "$command (the program is no longer running)"
}
fail "$errmsg"
set result -1
}
-re "\r\n$gdb_prompt $" {
if ![string match "" $message] then {
fail "$message"
}
set result 1
}
"<return>" {
send_gdb "\n"
perror "Window too small."
fail "$message"
set result -1
}
-re "\\((y or n|y or \\\[n\\\]|\\\[y\\\] or n)\\) " {
send_gdb "n\n"
gdb_expect -re "$gdb_prompt $"
fail "$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 $"
fail "$message (got breakpoint menu)"
set result -1
}
eof {
perror "Process no longer exists"
if { $message != "" } {
fail "$message"
}
return -1
}
full_buffer {
perror "internal buffer is full."
fail "$message"
set result -1
}
timeout {
if ![string match "" $message] then {
fail "$message (timeout)"
}
set result 1
}
}
set result 0
set code [catch {gdb_expect $tmt $code} string]
if {$code == 1} {
global errorInfo errorCode
return -code error -errorinfo $errorInfo -errorcode $errorCode $string
} elseif {$code > 1} {
return -code $code $string
}
return $result
}
# gdb_test COMMAND PATTERN MESSAGE QUESTION RESPONSE
# 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.
# PATTERN is the pattern to match for a PASS, and must NOT include
# the \r\n sequence immediately before the gdb prompt.
# 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
# call pass or fail at all; I don't understand this at all.)
# QUESTION is a question GDB may ask in response to COMMAND, like
# "are you sure?"
# RESPONSE is the response to send if QUESTION appears.
#
# Returns:
# 1 if the test failed,
# 0 if the test passes,
# -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 message [lindex $args 2]
} else {
set message [lindex $args 0]
}
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 {
-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
}
}]
}
# gdb_test_no_output COMMAND MESSAGE
# Send a command to GDB and verify that this command generated no output.
#
# See gdb_test_multiple for a description of the COMMAND and MESSAGE
# parameters. If MESSAGE is ommitted, then COMMAND will be used as
# the message. (If MESSAGE is the empty string, then sometimes we do not
# call pass or fail at all; I don't understand this at all.)
proc gdb_test_no_output { args } {
global gdb_prompt
set command [lindex $args 0]
if [llength $args]>1 then {
set message [lindex $args 1]
} else {
set message $command
}
set command_regex [string_to_regexp $command]
gdb_test_multiple $command $message {
-re "^$command_regex\r\n$gdb_prompt $" {
if ![string match "" $message] then {
pass "$message"
}
}
}
}
# Send a command and then wait for a sequence of outputs.
# 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.
# 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.
#
# It is unnecessary to specify ".*" at the beginning or end of any regexp,
# there is an implicit ".*" between each element of EXPECTED_OUTPUT_LIST.
# There is also an implicit ".*" between the last regexp and the gdb prompt.
#
# Like gdb_test and gdb_test_multiple, the output is expected to end with the
# gdb prompt, which must not be specified in EXPECTED_OUTPUT_LIST.
#
# Returns:
# 1 if the test failed,
# 0 if the test passes,
# -1 if there was an internal error.
proc gdb_test_sequence { command test_name expected_output_list } {
global gdb_prompt
if { $test_name == "" } {
set test_name $command
}
lappend expected_output_list ""; # implicit ".*" before gdb prompt
send_gdb "$command\n"
return [gdb_expect_list $test_name "$gdb_prompt $" $expected_output_list]
}
# Test that a command gives an error. For pass or fail, return
# a 1 to indicate that more tests can proceed. However a timeout
# is a serious error, generates a special fail message, and causes
# a 0 to be returned to indicate that more tests are likely to fail
# as well.
proc test_print_reject { args } {
global gdb_prompt
global verbose
if [llength $args]==2 then {
set expectthis [lindex $args 1]
} else {
set expectthis "should never match this bogus string"
}
set sendthis [lindex $args 0]
if $verbose>2 then {
send_user "Sending \"$sendthis\" to gdb\n"
send_user "Looking to match \"$expectthis\"\n"
}
send_gdb "$sendthis\n"
#FIXME: Should add timeout as parameter.
gdb_expect {
-re "A .* in expression.*\\.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "Invalid syntax in expression.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "Junk after end of expression.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "Invalid number.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "Invalid character constant.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "No symbol table is loaded.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "No symbol .* in current context.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "Unmatched single quote.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "A character constant must contain at least one character.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re "$expectthis.*$gdb_prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*$gdb_prompt $" {
fail "reject $sendthis"
return 1
}
default {
fail "reject $sendthis (eof or timeout)"
return 0
}
}
}
# 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.
proc gdb_test_exact { args } {
upvar timeout timeout
set command [lindex $args 0]
# This applies a special meaning to a null string pattern. Without
# this, "$pattern\r\n$gdb_prompt $" will match anything, including error
# messages from commands that should have no output except a new
# prompt. With this, only results of a null string will match a null
# string pattern.
set pattern [lindex $args 1]
if [string match $pattern ""] {
set pattern [string_to_regexp [lindex $args 0]]
} else {
set pattern [string_to_regexp [lindex $args 1]]
}
# It is most natural to write the pattern argument with only
# embedded \n's, especially if you are trying to avoid Tcl quoting
# problems. But gdb_expect really wants to see \r\n in patterns. So
# transform the pattern here. First transform \r\n back to \n, in
# case some users of gdb_test_exact already do the right thing.
regsub -all "\r\n" $pattern "\n" pattern
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]
}
# Wrapper around gdb_test_multiple that looks for a list of expected
# output elements, but which can appear in any order.
# CMD is the gdb command.
# NAME is the name of the test.
# ELM_FIND_REGEXP specifies how to partition the output into elements to
# compare.
# ELM_EXTRACT_REGEXP specifies the part of ELM_FIND_REGEXP to compare.
# RESULT_MATCH_LIST is a list of exact matches for each expected element.
# All elements of RESULT_MATCH_LIST must appear for the test to pass.
#
# A typical use of ELM_FIND_REGEXP/ELM_EXTRACT_REGEXP is to extract one line
# of text per element and then strip trailing \r\n's.
# Example:
# gdb_test_list_exact "foo" "bar" \
# "\[^\r\n\]+\[\r\n\]+" \
# "\[^\r\n\]+" \
# { \
# {expected result 1} \
# {expected result 2} \
# }
proc gdb_test_list_exact { cmd name elm_find_regexp elm_extract_regexp result_match_list } {
global gdb_prompt
set matches [lsort $result_match_list]
set seen {}
gdb_test_multiple $cmd $name {
"$cmd\[\r\n\]" { exp_continue }
-re $elm_find_regexp {
set str $expect_out(0,string)
verbose -log "seen: $str" 3
regexp -- $elm_extract_regexp $str elm_seen
verbose -log "extracted: $elm_seen" 3
lappend seen $elm_seen
exp_continue
}
-re "$gdb_prompt $" {
set failed ""
foreach got [lsort $seen] have $matches {
if {![string equal $got $have]} {
set failed $have
break
}
}
if {[string length $failed] != 0} {
fail "$name ($failed not found)"
} else {
pass $name
}
}
}
}
proc gdb_reinitialize_dir { subdir } {
global gdb_prompt
if [is_remote host] {
return ""
}
send_gdb "dir\n"
gdb_expect 60 {
-re "Reinitialize source path to empty.*y or n. " {
send_gdb "y\n"
gdb_expect 60 {
-re "Source directories searched.*$gdb_prompt $" {
send_gdb "dir $subdir\n"
gdb_expect 60 {
-re "Source directories searched.*$gdb_prompt $" {
verbose "Dir set to $subdir"
}
-re "$gdb_prompt $" {
perror "Dir \"$subdir\" failed."
}
}
}
-re "$gdb_prompt $" {
perror "Dir \"$subdir\" failed."
}
}
}
-re "$gdb_prompt $" {
perror "Dir \"$subdir\" failed."
}
}
}
#
# gdb_exit -- exit the GDB, killing the target program if necessary
#
proc default_gdb_exit {} {
global GDB
global INTERNAL_GDBFLAGS GDBFLAGS
global verbose
global gdb_spawn_id
global inotify_log_file
gdb_stop_suppressing_tests
if ![info exists gdb_spawn_id] {
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"
gdb_expect 10 {
-re "y or n" {
send_gdb "y\n"
exp_continue
}
-re "DOSEXIT code" { }
default { }
}
}
if ![is_remote host] {
remote_close host
}
unset gdb_spawn_id
}
# Load a file into the debugger.
# The return value is 0 for success, -1 for failure.
#
# This procedure also set the global variable GDB_FILE_CMD_DEBUG_INFO
# to one of these values:
#
# 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,
# but ran into a mess because of the many re-implementations of
# gdb_load in config/*.exp.
#
# TODO: gdb.base/sepdebug.exp and gdb.stabs/weird.exp might be able to use
# this if they can get more information set.
proc gdb_file_cmd { arg } {
global gdb_prompt
global verbose
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.
# Default to "fail".
global gdb_file_cmd_debug_info
set gdb_file_cmd_debug_info "fail"
if [is_remote host] {
set arg [remote_download host $arg]
if { $arg == "" } {
perror "download failed"
return -1
}
}
# The file command used to kill the remote target. For the benefit
# of the testsuite, preserve this behavior.
send_gdb "kill\n"
gdb_expect 120 {
-re "Kill the program being debugged. .y or n. $" {
send_gdb "y\n"
verbose "\t\tKilling previous program being debugged"
exp_continue
}
-re "$gdb_prompt $" {
# OK.
}
}
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 $GDB with no debugging symbols"
set gdb_file_cmd_debug_info "nodebug"
return 0
}
-re "Reading symbols from.*done.*$gdb_prompt $" {
verbose "\t\tLoaded $arg into $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 $arg, other program already loaded (eof)."
return -1
}
}
}
-re "No such file or directory.*$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."
return -1
}
timeout {
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 (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
global GDB
global INTERNAL_GDBFLAGS GDBFLAGS
global gdb_prompt
global timeout
global gdb_spawn_id
gdb_stop_suppressing_tests
# Set the default value, it may be overriden later by specific testfile.
#
# Use `set_board_info use_gdb_stub' for the board file to flag the inferior
# is already started after connecting and run/attach are not supported.
# This is used for the "remote" protocol. After GDB starts you should
# check global $use_gdb_stub instead of the board as the testfile may force
# a specific different target protocol itself.
set use_gdb_stub [target_info exists use_gdb_stub]
verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
if [info exists gdb_spawn_id] {
return 0
}
if ![is_remote host] {
if { [which $GDB] == 0 } then {
perror "$GDB does not exist."
exit 1
}
}
set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]
if { $res < 0 || $res == "" } {
perror "Spawning $GDB failed."
return 1
}
gdb_expect 360 {
-re "\[\r\n\]$gdb_prompt $" {
verbose "GDB initialized."
}
-re "$gdb_prompt $" {
perror "GDB never initialized."
return -1
}
timeout {
perror "(timeout) GDB never initialized after 10 seconds."
remote_close host
return -1
}
}
set gdb_spawn_id -1
# force the height to "unlimited", so no pagers get used
send_gdb "set height 0\n"
gdb_expect 10 {
-re "$gdb_prompt $" {
verbose "Setting height to 0." 2
}
timeout {
warning "Couldn't set the height to 0"
}
}
# force the width to "unlimited", so no wraparound occurs
send_gdb "set width 0\n"
gdb_expect 10 {
-re "$gdb_prompt $" {
verbose "Setting width to 0." 2
}
timeout {
warning "Couldn't set the width to 0."
}
}
return 0
}
# Examine the output of compilation to determine whether compilation
# failed or not. If it failed determine whether it is due to missing
# compiler or due to compiler error. Report pass, fail or unsupported
# as appropriate
proc gdb_compile_test {src output} {
if { $output == "" } {
pass "compilation [file tail $src]"
} elseif { [regexp {^[a-zA-Z_0-9]+: Can't find [^ ]+\.$} $output] } {
unsupported "compilation [file tail $src]"
} elseif { [regexp {.*: command not found[\r|\n]*$} $output] } {
unsupported "compilation [file tail $src]"
} elseif { [regexp {.*: [^\r\n]*compiler not installed[^\r\n]*[\r|\n]*$} $output] } {
unsupported "compilation [file tail $src]"
} else {
verbose -log "compilation failed: $output" 2
fail "compilation [file tail $src]"
}
}
# Return a 1 for configurations for which we don't even want to try to
# test C++.
proc skip_cplus_tests {} {
if { [istarget "h8300-*-*"] } {
return 1
}
# The C++ IO streams are too large for HC11/HC12 and are thus not
# available. The gdb C++ tests use them and don't compile.
if { [istarget "m6811-*-*"] } {
return 1
}
if { [istarget "m6812-*-*"] } {
return 1
}
return 0
}
# Return a 1 for configurations for which don't have both C++ and the STL.
proc skip_stl_tests {} {
# Symbian supports the C++ language, but the STL is missing
# (both headers and libraries).
if { [istarget "arm*-*-symbianelf*"] } {
return 1
}
return [skip_cplus_tests]
}
# Return a 1 if I don't even want to try to test FORTRAN.
proc skip_fortran_tests {} {
return 0
}
# Return a 1 if I don't even want to try to test ada.
proc skip_ada_tests {} {
return 0
}
# Return a 1 if I don't even want to try to test GO.
proc skip_go_tests {} {
return 0
}
# Return a 1 if I don't even want to try to test java.
proc skip_java_tests {} {
return 0
}
# Return a 1 if I don't even want to try to test D.
proc skip_d_tests {} {
return 0
}
# Return a 1 for configurations that do not support Python scripting.
proc skip_python_tests {} {
global gdb_prompt
global gdb_py_is_py3k
global gdb_py_is_py24
gdb_test_multiple "python print ('test')" "verify python support" {
-re "not supported.*$gdb_prompt $" {
unsupported "Python support is disabled."
return 1
}
-re "$gdb_prompt $" {}
}
set gdb_py_is_py24 0
gdb_test_multiple "python print (sys.version_info\[0\])" "check if python 3" {
-re "3.*$gdb_prompt $" {
set gdb_py_is_py3k 1
}
-re ".*$gdb_prompt $" {
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 "\[45\].*$gdb_prompt $" {
set gdb_py_is_py24 1
}
-re ".*$gdb_prompt $" {
set gdb_py_is_py24 0
}
}
}
return 0
}
# Return a 1 if we should skip shared library tests.
proc skip_shlib_tests {} {
# Run the shared library tests on native systems.
if {[isnative]} {
return 0
}
# An abbreviated list of remote targets where we should be able to
# run shared library tests.
if {([istarget *-*-linux*]
|| [istarget *-*-*bsd*]
|| [istarget *-*-solaris2*]
|| [istarget arm*-*-symbianelf*]
|| [istarget *-*-mingw*]
|| [istarget *-*-cygwin*]
|| [istarget *-*-pe*])} {
return 0
}
return 1
}
# 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
# variations of the same tests more than once, shall prefix the
# different test invocations with different identifying strings in
# order to make them unique.
#
# About test prefixes:
#
# $pf_prefix is the string that dejagnu prints after the result (FAIL,
# PASS, etc.), and before the test message/name in gdb.sum. E.g., the
# underlined substring in
#
# PASS: gdb.base/mytest.exp: some test
# ^^^^^^^^^^^^^^^^^^^^
#
# is $pf_prefix.
#
# The easiest way to adjust the test prefix is to append a test
# variation prefix to the $pf_prefix, using the with_test_prefix
# procedure. E.g.,
#
# proc do_tests {} {
# gdb_test ... ... "test foo"
# gdb_test ... ... "test bar"
#
# with_test_prefix "subvariation a" {
# gdb_test ... ... "test x"
# }
#
# with_test_prefix "subvariation b" {
# gdb_test ... ... "test x"
# }
# }
#
# with_test_prefix "variation1" {
# ...do setup for variation 1...
# do_tests
# }
#
# with_test_prefix "variation2" {
# ...do setup for variation 2...
# do_tests
# }
#
# Results in:
#
# PASS: gdb.base/mytest.exp: variation1: test foo
# PASS: gdb.base/mytest.exp: variation1: test bar
# PASS: gdb.base/mytest.exp: variation1: subvariation a: test x
# PASS: gdb.base/mytest.exp: variation1: subvariation b: test x
# PASS: gdb.base/mytest.exp: variation2: test foo
# PASS: gdb.base/mytest.exp: variation2: test bar
# PASS: gdb.base/mytest.exp: variation2: subvariation a: test x
# PASS: gdb.base/mytest.exp: variation2: subvariation b: test x
#
# If for some reason more flexibility is necessary, one can also
# manipulate the pf_prefix global directly, treating it as a string.
# E.g.,
#
# global pf_prefix
# set saved_pf_prefix
# append pf_prefix "${foo}: bar"
# ... actual tests ...
# set pf_prefix $saved_pf_prefix
#
# Run BODY in the context of the caller, with the current test prefix
# (pf_prefix) appended with one space, then PREFIX, and then a colon.
# Returns the result of BODY.
#
proc with_test_prefix { prefix body } {
global pf_prefix
set saved $pf_prefix
append pf_prefix " " $prefix ":"
set code [catch {uplevel 1 $body} result]
set pf_prefix $saved
if {$code == 1} {
global errorInfo errorCode
return -code $code -errorinfo $errorInfo -errorcode $errorCode $result
} else {
return -code $code $result
}
}
# Run tests in BODY with 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.
proc with_gdb_prompt { prompt body } {
global gdb_prompt
set saved $gdb_prompt
set gdb_prompt $prompt
gdb_test_no_output "set prompt $prompt " ""
set code [catch {uplevel 1 $body} result]
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
}
}
# Return 1 if _Complex types are supported, otherwise, return 0.
gdb_caching_proc support_complex_tests {
# 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 [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}
set lines [gdb_compile $src $exe executable $compile_flags]
file delete $src
file delete $exe
if ![string match "" $lines] then {
verbose "testfile compilation failed, returning 0" 2
set result 0
} else {
set result 1
}
return $result
}
# 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 1 if target supports process record, otherwise return 0.
proc supports_process_record {} {
if [target_info exists gdb,use_precord] {
return [target_info gdb,use_precord]
}
if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
|| [istarget "i\[34567\]86-*-linux*"] } {
return 1
}
return 0
}
# Return 1 if target supports reverse debugging, otherwise return 0.
proc supports_reverse {} {
if [target_info exists gdb,can_reverse] {
return [target_info gdb,can_reverse]
}
if { [istarget "arm*-*-linux*"] || [istarget "x86_64-*-linux*"]
|| [istarget "i\[34567\]86-*-linux*"] } {
return 1
}
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
}
# Produce source file NAME and write SOURCES into it.
proc gdb_produce_source { name sources } {
set index 0
set f [open $name "w"]
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}]
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 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.
gdb_caching_proc is_lp64_target {
set me "is_lp64_target"
set src [standard_temp_file lp64[pid].c]
set obj [standard_temp_file lp64[pid].o]
gdb_produce_source $src {
int dummy[sizeof (int) == 4
&& sizeof (void *) == 8
&& sizeof (long) == 8 ? 1 : -1];
}
verbose "$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 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}]
file delete $src
file delete $obj
if ![string match "" $lines] then {
verbose "$me: testfile compilation failed, returning 0" 2
return 0
}
verbose "$me: returning 1" 2
return 1
}
# Return 1 if target has x86_64 registers - either amd64 or x32.
# x32 target identifies as x86_64-*-linux*, therefore it cannot be determined
# just from the target string.
gdb_caching_proc is_amd64_regs_target {
if {![istarget "x86_64-*-*"] && ![istarget "i?86-*"]} {
return 0
}
set me "is_amd64_regs_target"
set src [standard_temp_file reg64[pid].s]
set obj [standard_temp_file reg64[pid].o]
set list {}
foreach reg \
{rax rbx rcx rdx rsi rdi rbp rsp r8 r9 r10 r11 r12 r13 r14 r15} {
lappend list "\tincq %$reg"
}
gdb_produce_source $src [join $list \n]
verbose "$me: compiling testfile $src" 2
set lines [gdb_compile $src $obj object {quiet}]
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 x86 or x86-64 with -m32.
proc is_x86_like_target {} {
if {![istarget "x86_64-*-*"] && ![istarget i?86-*]} {
return 0
}
return [expr [is_ilp32_target] && ![is_amd64_regs_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*-*-*"] } {
return 1
}
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 $skip_vsx_tests
}
# Run a test on the target to see if it supports btrace hardware. Return 0 if so,
# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
gdb_caching_proc skip_btrace_tests {
global srcdir subdir gdb_prompt inferior_exited_re
set me "skip_btrace_tests"
if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
verbose "$me: target does not support btrace, returning 1" 2
return 1
}
# Set 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 $src {
int main(void) { return 0; }
}
verbose "$me: compiling testfile $src" 2
set compile_flags {debug nowarnings quiet}
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
}
# 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
}
# 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
}
# Return whether we should skip tests for showing inlined functions in
# backtraces. Requires get_compiler_info and get_debug_format.
proc skip_inline_frame_tests {} {
# GDB only recognizes inlining information in DWARF 2 (DWARF 3).
if { ! [test_debug_format "DWARF 2"] } {
return 1
}
# GCC before 4.1 does not emit DW_AT_call_file / DW_AT_call_line.
if { ([test_compiler_info "gcc-2-*"]
|| [test_compiler_info "gcc-3-*"]
|| [test_compiler_info "gcc-4-0-*"]) } {
return 1
}
return 0
}
# Return whether we should skip tests for showing variables from
# inlined functions. Requires get_compiler_info and get_debug_format.
proc skip_inline_var_tests {} {
# GDB only recognizes inlining information in DWARF 2 (DWARF 3).
if { ! [test_debug_format "DWARF 2"] } {
return 1
}
return 0
}
# Return a 1 if we should skip tests that require hardware breakpoints
proc skip_hw_breakpoint_tests {} {
# Skip tests if requested by the board (note that no_hardware_watchpoints
# disables both watchpoints and breakpoints)
if { [target_info exists gdb,no_hardware_watchpoints]} {
return 1
}
# These targets support hardware breakpoints natively
if { [istarget "i?86-*-*"]
|| [istarget "x86_64-*-*"]
|| [istarget "ia64-*-*"]
|| [istarget "arm*-*-*"]} {
return 0
}
return 1
}
# Return a 1 if we should skip tests that require hardware watchpoints
proc skip_hw_watchpoint_tests {} {
# Skip tests if requested by the board
if { [target_info exists gdb,no_hardware_watchpoints]} {
return 1
}
# These targets support hardware watchpoints natively
if { [istarget "i?86-*-*"]
|| [istarget "x86_64-*-*"]
|| [istarget "ia64-*-*"]
|| [istarget "arm*-*-*"]
|| [istarget "powerpc*-*-linux*"]
|| [istarget "s390*-*-*"] } {
return 0
}
return 1
}
# Return a 1 if we should skip tests that require *multiple* hardware
# watchpoints to be active at the same time
proc skip_hw_watchpoint_multi_tests {} {
if { [skip_hw_watchpoint_tests] } {
return 1
}
# These targets support just a single hardware watchpoint
if { [istarget "arm*-*-*"]
|| [istarget "powerpc*-*-linux*"] } {
return 1
}
return 0
}
# Return a 1 if we should skip tests that require read/access watchpoints
proc skip_hw_watchpoint_access_tests {} {
if { [skip_hw_watchpoint_tests] } {
return 1
}
# These targets support just write watchpoints
if { [istarget "s390*-*-*"] } {
return 1
}
return 0
}
# 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
}
set compiler_info "unknown"
set gcc_compiled 0
set hp_cc_compiler 0
set hp_aCC_compiler 0
# Figure out what compiler I am using.
#
# ARG can be empty or "C++". If empty, "C" is assumed.
#
# There are several ways to do this, with various problems.
#
# [ gdb_compile -E $ifile -o $binfile.ci ]
# source $binfile.ci
#
# Single Unix Spec v3 says that "-E -o ..." together are not
# specified. And in fact, the native compiler on hp-ux 11 (among
# others) does not work with "-E -o ...". Most targets used to do
# this, and it mostly worked, because it works with gcc.
#
# [ catch "exec $compiler -E $ifile > $binfile.ci" exec_output ]
# source $binfile.ci
#
# This avoids the problem with -E and -o together. This almost works
# 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.
#
# [ gdb_compile -E $ifile > $binfile.ci ]
# source $binfile.ci
#
# dejagnu target_compile says that it supports output redirection,
# but the code is completely different from the normal path and I
# don't want to sweep the mines from that path. So I didn't even try
# this.
#
# set cppout [ gdb_compile $ifile "" preprocess $args quiet ]
# eval $cppout
#
# I actually do this for all targets now. gdb_compile runs the right
# compiler, and TCL captures the output, and I eval the output.
#
# Unfortunately, expect logs the output of the command as it goes by,
# and dejagnu helpfully prints a second copy of it right afterwards.
# So I turn off expect logging for a moment.
#
# [ gdb_compile $ifile $ciexe_file executable $args ]
# [ remote_exec $ciexe_file ]
# [ source $ci_file.out ]
#
# I could give up on -E and just do this.
# I didn't get desperate enough to try this.
#
# -- chastain 2004-01-06
proc get_compiler_info {{arg ""}} {
# For compiler.c and compiler.cc
global srcdir
# I am going to play with the log to keep noise out.
global outdir
global tool
# These come from compiler.c or compiler.cc
global compiler_info
# Legacy global data symbols.
global gcc_compiled
global hp_cc_compiler
global hp_aCC_compiler
# Choose which file to preprocess.
set ifile "${srcdir}/lib/compiler.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 "$arg" quiet]
set file [open $ppout r]
set cppout [read $file]
close $file
} else {
set cppout [ gdb_compile "${ifile}" "" preprocess [list "$arg" quiet] ]
}
eval log_file $saved_log
# Eval the output.
set unknown 0
foreach cppline [ split "$cppout" "\n" ] {
if { [ regexp "^#" "$cppline" ] } {
# line marker
} elseif { [ regexp "^\[\n\r\t \]*$" "$cppline" ] } {
# blank line
} elseif { [ regexp "^\[\n\r\t \]*set\[\n\r\t \]" "$cppline" ] } {
# eval this line
verbose "get_compiler_info: $cppline" 2
eval "$cppline"
} else {
# unknown line
verbose -log "get_compiler_info: $cppline"
set unknown 1
}
}
# Reset to unknown compiler if any diagnostics happened.
if { $unknown } {
set compiler_info "unknown"
}
# Set the legacy symbols.
set gcc_compiled 0
set hp_cc_compiler 0
set hp_aCC_compiler 0
if { [regexp "^gcc-1-" "$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 }
# Log what happened.
verbose -log "get_compiler_info: $compiler_info"
# Most compilers will evaluate comparisons and other boolean
# operations to 0 or 1.
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
}
proc test_compiler_info { {compiler ""} } {
global 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."
}
}
return [string match $compiler $compiler_info]
}
proc current_target_name { } {
global target_info
if [info exists target_info(target,name)] {
set answer $target_info(target,name)
} else {
set answer ""
}
return $answer
}
set gdb_wrapper_initialized 0
set gdb_wrapper_target ""
proc gdb_wrapper_init { args } {
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"]
if { $result != "" } {
set gdb_wrapper_file [lindex $result 0]
set gdb_wrapper_flags [lindex $result 1]
} else {
warning "Status wrapper failed to build."
}
}
set gdb_wrapper_initialized 1
set gdb_wrapper_target [current_target_name]
}
# 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 ""
proc gdb_compile {source dest type options} {
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
set outdir [file dirname $dest]
# Add platform-specific options if a shared library was specified using
# "shlib=librarypath" in OPTIONS.
set new_options ""
set shlib_found 0
set shlib_load 0
foreach opt $options {
if [regexp {^shlib=(.*)} $opt dummy_var shlib_name] {
if [test_compiler_info "xlc-*"] {
# IBM xlc compiler doesn't accept shared library named other
# than .so: use "-Wl," to bypass this
lappend source "-Wl,$shlib_name"
} elseif { ([istarget "*-*-mingw*"]
|| [istarget *-*-cygwin*]
|| [istarget *-*-pe*])} {
lappend source "${shlib_name}.a"
} else {
lappend source $shlib_name
}
if { $shlib_found == 0 } {
set shlib_found 1
if { ([istarget "*-*-mingw*"]
|| [istarget *-*-cygwin*]) } {
lappend new_options "additional_flags=-Wl,--enable-auto-import"
}
}
} elseif { $opt == "shlib_load" } {
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]) } {
if { ([istarget "*-*-mingw*"]
|| [istarget *-*-cygwin*]
|| [istarget *-*-pe*]
|| [istarget hppa*-*-hpux*])} {
# Do not need anything.
} elseif { [istarget *-*-freebsd*] || [istarget *-*-openbsd*] } {
lappend new_options "ldflags=-Wl,-rpath,${outdir}"
} elseif { [istarget arm*-*-symbianelf*] } {
if { $shlib_load } {
lappend new_options "libs=-ldl"
}
} else {
if { $shlib_load } {
lappend new_options "libs=-ldl"
}
lappend new_options "ldflags=-Wl,-rpath,\\\$ORIGIN"
}
}
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"
}
verbose "options are $options"
verbose "source is $source $dest $type $options"
if { $gdb_wrapper_initialized == 0 } { gdb_wrapper_init }
if {[target_info exists needs_status_wrapper] && \
[target_info needs_status_wrapper] != "0" && \
[info exists gdb_wrapper_file]} {
lappend options "libs=${gdb_wrapper_file}"
lappend options "ldflags=${gdb_wrapper_flags}"
}
# Replace the "nowarnings" option with the appropriate additional_flags
# to disable compiler warnings.
set nowarnings [lsearch -exact $options nowarnings]
if {$nowarnings != -1} {
if [target_info exists gdb,nowarnings_flag] {
set flag "additional_flags=[target_info gdb,nowarnings_flag]"
} else {
set flag "additional_flags=-w"
}
set options [lreplace $options $nowarnings $nowarnings $flag]
}
if { $type == "executable" } {
if { ([istarget "*-*-mingw*"]
|| [istarget "*-*-*djgpp"]
|| [istarget "*-*-cygwin*"])} {
# 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:
# 1) Insulate it from $options.
# 2) Avoid compiling it for every gdb_compile invocation,
# which is time consuming, especially if we're remote
# host testing.
#
if { $gdb_saved_set_unbuffered_mode_obj == "" } {
verbose "compiling gdb_saved_set_unbuffered_obj"
set unbuf_src ${srcdir}/lib/set_unbuffered_mode.c
set unbuf_obj ${objdir}/set_unbuffered_mode.o
set result [gdb_compile "${unbuf_src}" "${unbuf_obj}" object {nowarnings}]
if { $result != "" } {
return $result
}
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_download host $unbuf_obj $gdb_saved_set_unbuffered_mode_obj
} else {
verbose "gdb_saved_set_unbuffered_obj already compiled"
}
# Rely on the internal knowledge that the global ctors are ran in
# reverse link order. In that case, we can use ldflags to
# avoid copying the object file to the host multiple
# times.
# This object can only be added if standard libraries are
# used. Thus, we need to disable it if -nostdlib option is used
if {[lsearch -regexp $options "-nostdlib"] < 0 } {
lappend options "ldflags=$gdb_saved_set_unbuffered_mode_obj"
}
}
}
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
if {[lsearch $options quiet] < 0} {
# We shall update this on a per language basis, to avoid
# changing the entire testsuite in one go.
if {[lsearch $options f77] >= 0} {
gdb_compile_test $source $result
} elseif { $result != "" } {
clone_output "gdb compile failed, $result"
}
}
return $result
}
# This is just like gdb_compile, above, except that it tries compiling
# against several different thread libraries, to see which one this
# system has.
proc gdb_compile_pthreads {source dest type options} {
set built_binfile 0
set why_msg "unrecognized error"
foreach lib {-lpthreads -lpthread -lthread ""} {
# This kind of wipes out whatever libs the caller may have
# set. Or maybe theirs will override ours. How infelicitous.
set options_with_lib [concat $options [list libs=$lib quiet]]
set ccout [gdb_compile $source $dest $type $options_with_lib]
switch -regexp -- $ccout {
".*no posix threads support.*" {
set why_msg "missing threads include file"
break
}
".*cannot open -lpthread.*" {
set why_msg "missing runtime threads library"
}
".*Can't find library for -lpthread.*" {
set why_msg "missing runtime threads library"
}
{^$} {
pass "successfully compiled posix threads test case"
set built_binfile 1
break
}
}
}
if {!$built_binfile} {
unsupported "Couldn't compile $source: ${why_msg}"
return -1
}
}
# 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"
}
"gcc-*" {
if { !([istarget "powerpc*-*-aix*"]
|| [istarget "rs6000*-*-aix*"]
|| [istarget "*-*-cygwin*"]
|| [istarget "*-*-mingw*"]
|| [istarget "*-*-pe*"]) } {
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...
}
}
}
}
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
}
if [istarget "hppa*-*-hpux*"] {
remote_exec build "ld -b ${objects} -o ${dest}"
} 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*]) } {
if { [is_remote host] } {
set name [file tail ${dest}]
} else {
set name ${dest}
}
lappend link_options "additional_flags=-Wl,--out-implib,${name}.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
}
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
# against several different thread libraries, to see which one this
# system has.
proc gdb_compile_shlib_pthreads {sources dest options} {
set built_binfile 0
set why_msg "unrecognized error"
foreach lib {-lpthreads -lpthread -lthread ""} {
# This kind of wipes out whatever libs the caller may have
# set. Or maybe theirs will override ours. How infelicitous.
set options_with_lib [concat $options [list libs=$lib quiet]]
set ccout [gdb_compile_shlib $sources $dest $options_with_lib]
switch -regexp -- $ccout {
".*no posix threads support.*" {
set why_msg "missing threads include file"
break
}
".*cannot open -lpthread.*" {
set why_msg "missing runtime threads library"
}
".*Can't find library for -lpthread.*" {
set why_msg "missing runtime threads library"
}
{^$} {
pass "successfully compiled posix threads test case"
set built_binfile 1
break
}
}
}
if {!$built_binfile} {
unsupported "Couldn't compile $sources: ${why_msg}"
return -1
}
}
# This is just like gdb_compile_pthreads, above, except that we always add the
# objc library for compiling Objective-C programs
proc gdb_compile_objc {source dest type options} {
set built_binfile 0
set why_msg "unrecognized error"
foreach lib {-lobjc -lpthreads -lpthread -lthread solaris} {
# This kind of wipes out whatever libs the caller may have
# set. Or maybe theirs will override ours. How infelicitous.
if { $lib == "solaris" } {
set lib "-lpthread -lposix4"
}
if { $lib != "-lobjc" } {
set lib "-lobjc $lib"
}
set options_with_lib [concat $options [list libs=$lib quiet]]
set ccout [gdb_compile $source $dest $type $options_with_lib]
switch -regexp -- $ccout {
".*no posix threads support.*" {
set why_msg "missing threads include file"
break
}
".*cannot open -lpthread.*" {
set why_msg "missing runtime threads library"
}
".*Can't find library for -lpthread.*" {
set why_msg "missing runtime threads library"
}
{^$} {
pass "successfully compiled objc with posix threads test case"
set built_binfile 1
break
}
}
}
if {!$built_binfile} {
unsupported "Couldn't compile $source: ${why_msg}"
return -1
}
}
proc send_gdb { string } {
global suppress_flag
if { $suppress_flag } {
return "suppressed"
}
return [remote_send host "$string"]
}
#
#
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
}
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
}
}
if [info exists atimeout] {
if { ![info exists gtimeout] || $gtimeout < $atimeout } {
set gtimeout $atimeout
}
} else {
if ![info exists gtimeout] {
# Eeeeew.
set gtimeout 60
}
}
global suppress_flag
global remote_suppress_flag
if [info exists remote_suppress_flag] {
set old_val $remote_suppress_flag
}
if [info exists suppress_flag] {
if { $suppress_flag } {
set remote_suppress_flag 1
}
}
set code [catch \
{uplevel remote_expect host $gtimeout $expcode} string]
if [info exists old_val] {
set remote_suppress_flag $old_val
} else {
if [info exists remote_suppress_flag] {
unset remote_suppress_flag
}
}
if {$code == 1} {
global errorInfo errorCode
return -code error -errorinfo $errorInfo -errorcode $errorCode $string
} else {
return -code $code $string
}
}
# gdb_expect_list TEST SENTINEL LIST -- expect a sequence of outputs
#
# Check for long sequence of output by parts.
# TEST: is the test message to be printed with the test success/fail.
# SENTINEL: Is the terminal pattern indicating that output has finished.
# LIST: is the sequence of outputs to match.
# If the sentinel is recognized early, it is considered an error.
#
# Returns:
# 1 if the test failed,
# 0 if the test passes,
# -1 if there was an internal error.
proc gdb_expect_list {test sentinel list} {
global gdb_prompt
global suppress_flag
set index 0
set ok 1
if { $suppress_flag } {
set ok 0
unresolved "${test}"
}
while { ${index} < [llength ${list}] } {
set pattern [lindex ${list} ${index}]
set index [expr ${index} + 1]
verbose -log "gdb_expect_list pattern: /$pattern/" 2
if { ${index} == [llength ${list}] } {
if { ${ok} } {
gdb_expect {
-re "${pattern}${sentinel}" {
# pass "${test}, pattern ${index} + sentinel"
}
-re "${sentinel}" {
fail "${test} (pattern ${index} + sentinel)"
set ok 0
}
-re ".*A problem internal to GDB has been detected" {
fail "${test} (GDB internal error)"
set ok 0
gdb_internal_error_resync
}
timeout {
fail "${test} (pattern ${index} + sentinel) (timeout)"
set ok 0
}
}
} else {
# unresolved "${test}, pattern ${index} + sentinel"
}
} else {
if { ${ok} } {
gdb_expect {
-re "${pattern}" {
# pass "${test}, pattern ${index}"
}
-re "${sentinel}" {
fail "${test} (pattern ${index})"
set ok 0
}
-re ".*A problem internal to GDB has been detected" {
fail "${test} (GDB internal error)"
set ok 0
gdb_internal_error_resync
}
timeout {
fail "${test} (pattern ${index}) (timeout)"
set ok 0
}
}
} else {
# unresolved "${test}, pattern ${index}"
}
}
}
if { ${ok} } {
pass "${test}"
return 0
} else {
return 1
}
}
#
#
proc gdb_suppress_entire_file { reason } {
global suppress_flag
warning "$reason\n"
set suppress_flag -1
}
#
# Set suppress_flag, which will cause all subsequent calls to send_gdb and
# gdb_expect to fail immediately (until the next call to
# gdb_stop_suppressing_tests).
#
proc gdb_suppress_tests { args } {
global suppress_flag
return; # fnf - disable pending review of results where
# testsuite ran better without this
incr suppress_flag
if { $suppress_flag == 1 } {
if { [llength $args] > 0 } {
warning "[lindex $args 0]\n"
} else {
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
if [info exists suppress_flag] {
if { $suppress_flag > 0 } {
set suppress_flag 0
clone_output "Tests restarted.\n"
}
} else {
set suppress_flag 0
}
}
proc gdb_clear_suppressed { } {
global suppress_flag
set suppress_flag 0
}
proc gdb_start { } {
default_gdb_start
}
proc gdb_exit { } {
catch default_gdb_exit
}
#
# gdb_load_cmd -- load a file into the debugger.
# ARGS - additional args to load command.
# return a -1 if anything goes wrong.
#
proc gdb_load_cmd { args } {
global gdb_prompt
if [target_info exists gdb_load_timeout] {
set loadtimeout [target_info gdb_load_timeout]
} else {
set loadtimeout 1600
}
send_gdb "load $args\n"
verbose "Timeout is now $loadtimeout seconds" 2
gdb_expect $loadtimeout {
-re "Loading section\[^\r\]*\r\n" {
exp_continue
}
-re "Start address\[\r\]*\r\n" {
exp_continue
}
-re "Transfer rate\[\r\]*\r\n" {
exp_continue
}
-re "Memory access error\[^\r\]*\r\n" {
perror "Failed to load program"
return -1
}
-re "$gdb_prompt $" {
return 0
}
-re "(.*)\r\n$gdb_prompt " {
perror "Unexpected reponse from 'load' -- $expect_out(1,string)"
return -1
}
timeout {
perror "Timed out trying to load $args."
return -1
}
}
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 $test
set result 1
}
-re "Undefined command.*$gdb_prompt $" {
unsupported $test
verbose -log "'gcore' command undefined in gdb_gcore_cmd"
}
-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.
proc shlib_target_file { libname } {
return $libname
}
# Return the filename GDB will load symbols from when debugging this
# shared library. Normally just LIBNAME, unless shared libraries for
# this target have separate link and load images.
proc shlib_symbol_file { libname } {
return $libname
}
# Return the filename to download to the target and load for this
# executable. Normally just BINFILE unless it is renamed to something
# else for this target.
proc exec_target_file { binfile } {
return $binfile
}
# Return the filename GDB will load symbols from when debugging this
# executable. Normally just BINFILE unless executables for this target
# have separate files for symbols.
proc exec_symbol_file { binfile } {
return $binfile
}
# Rename the executable file. Normally this is just BINFILE1 being renamed
# to BINFILE2, but some targets require multiple binary files.
proc gdb_rename_execfile { binfile1 binfile2 } {
file rename -force [exec_target_file ${binfile1}] \
[exec_target_file ${binfile2}]
if { [exec_target_file ${binfile1}] != [exec_symbol_file ${binfile1}] } {
file rename -force [exec_symbol_file ${binfile1}] \
[exec_symbol_file ${binfile2}]
}
}
# "Touch" the executable file to update the date. Normally this is just
# BINFILE, but some targets require multiple files.
proc gdb_touch_execfile { binfile } {
set time [clock seconds]
file mtime [exec_target_file ${binfile}] $time
if { [exec_target_file ${binfile}] != [exec_symbol_file ${binfile}] } {
file mtime [exec_symbol_file ${binfile}] $time
}
}
# Like remote_download but provides a gdb-specific behavior. If DEST
# is "host", and the host is not remote, and TOFILE is not specified,
# then the [file tail] of FROMFILE is passed through
# standard_output_file to compute the destination.
proc gdb_remote_download {dest fromfile {tofile {}}} {
if {$dest == "host" && ![is_remote host] && $tofile == ""} {
set tofile [standard_output_file [file tail $fromfile]]
}
if { $tofile == "" } {
return [remote_download $dest $fromfile]
} else {
return [remote_download $dest $fromfile $tofile]
}
}
# gdb_download
#
# Copy a file to the remote target and return its target filename.
# Schedule the file to be deleted at the end of this test.
proc gdb_download { filename } {
global cleanfiles
set destname [remote_download target $filename]
lappend cleanfiles $destname
return $destname
}
# gdb_load_shlibs LIB...
#
# Copy the listed libraries to the target.
proc gdb_load_shlibs { args } {
if {![is_remote target]} {
return
}
foreach file $args {
gdb_download [shlib_target_file $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]]" "" ""
}
#
# gdb_load -- load a file into the debugger.
# Many files in config/*.exp override this procedure.
#
proc gdb_load { arg } {
return [gdb_file_cmd $arg]
}
# gdb_reload -- load a file into the target. Called before "running",
# 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.
proc gdb_reload { } {
# For the benefit of existing configurations, default to gdb_load.
# Specifying no file defaults to the executable currently being
# debugged.
return [gdb_load ""]
}
proc gdb_continue { function } {
global decimal
return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"]
}
proc default_gdb_init { args } {
global gdb_wrapper_initialized
global gdb_wrapper_target
global gdb_test_file_name
global cleanfiles
set cleanfiles {}
gdb_clear_suppressed
set gdb_test_file_name [file rootname [file tail [lindex $args 0]]]
# Make sure that the wrapper is rebuilt
# with the appropriate multilib option.
if { $gdb_wrapper_target != [current_target_name] } {
set gdb_wrapper_initialized 0
}
# 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
# 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 file [lindex $args 0]
set pf_prefix "[file tail [file dirname $file]]/[file tail $file]:"
}
global gdb_prompt
if [target_info exists gdb_prompt] {
set gdb_prompt [target_info gdb_prompt]
} else {
set gdb_prompt "\\(gdb\\)"
}
global use_gdb_stub
if [info exists use_gdb_stub] {
unset use_gdb_stub
}
}
# 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 GDB_PARALLEL
if {[info exists GDB_PARALLEL]} {
set dir [file join $objdir outputs $subdir $gdb_test_file_name]
file mkdir $dir
return [file join $dir $basename]
} else {
return [file join $objdir $subdir $basename]
}
}
# Return the name of a file in our standard temporary directory.
proc standard_temp_file {basename} {
global objdir GDB_PARALLEL
if {[info exists GDB_PARALLEL]} {
return [file join $objdir temp $basename]
} else {
return $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).
global gdb_test_timeout
if ![info exists gdb_test_timeout] {
set gdb_test_timeout $timeout
}
# A list of global variables that GDB testcases should not use.
# We try to prevent their use by monitoring write accesses and raising
# an error when that happens.
set banned_variables { bug_id prms_id }
# A list of procedures that GDB testcases should not use.
# We try to prevent their use by monitoring invocations and raising
# an error when that happens.
set banned_procedures { strace }
# gdb_init is called by runtest at start, but also by several
# tests directly; gdb_finish is only called from within runtest after
# each test source execution.
# Placing several traces by repetitive calls to gdb_init leads
# to problems, as only one trace is removed in gdb_finish.
# To overcome this possible problem, we add a variable that records
# if the banned variables and procedures are already traced.
set banned_traced 0
proc gdb_init { args } {
# 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 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"
# 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
return [eval default_gdb_init $args]
}
proc gdb_finish { } {
global gdbserver_reconnect_p
global gdb_prompt
global cleanfiles
# Give persistent gdbserver a chance to terminate before GDB is killed.
if {[info exists gdbserver_reconnect_p] && $gdbserver_reconnect_p
&& [info exists gdb_spawn_id]} {
send_gdb "kill\n";
gdb_expect 10 {
-re "y or n" {
send_gdb "y\n";
exp_continue;
}
-re "$gdb_prompt $" {
}
}
}
# Exit first, so that the files are no longer in use.
gdb_exit
if { [llength $cleanfiles] > 0 } {
eval remote_file target delete $cleanfiles
set cleanfiles {}
}
# Unblock write access to the banned variables. Dejagnu typically
# resets some of them between testcases.
global banned_variables
global banned_procedures
global banned_traced
if ($banned_traced) {
foreach banned_var $banned_variables {
global "$banned_var"
trace remove variable "$banned_var" write error
}
foreach banned_proc $banned_procedures {
global "$banned_proc"
trace remove execution "$banned_proc" enter error
}
set banned_traced 0
}
}
global debug_format
set debug_format "unknown"
# Run the gdb command "info source" and extract the debugging format
# information from the output and save it in debug_format.
proc get_debug_format { } {
global gdb_prompt
global verbose
global expect_out
global debug_format
set debug_format "unknown"
send_gdb "info source\n"
gdb_expect 10 {
-re "Compiled with (.*) debugging format.\r\n.*$gdb_prompt $" {
set debug_format $expect_out(1,string)
verbose "debug format is $debug_format"
return 1
}
-re "No current source file.\r\n$gdb_prompt $" {
perror "get_debug_format used when no current source file"
return 0
}
-re "$gdb_prompt $" {
warning "couldn't check debug format (no valid response)."
return 1
}
timeout {
warning "couldn't check debug format (timeout)."
return 1
}
}
}
# Return true if FORMAT matches the debug format the current test was
# compiled with. FORMAT is a shell-style globbing pattern; it can use
# `*', `[...]', and so on.
#
# This function depends on variables set by `get_debug_format', above.
proc test_debug_format {format} {
global debug_format
return [expr [string match $format $debug_format] != 0]
}
# Like setup_xfail, but takes the name of a debug format (DWARF 1,
# COFF, stabs, etc). If that format matches the format that the
# current test was compiled with, then the next test is expected to
# fail for any target. Returns 1 if the next test or set of tests is
# 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 $format]
if {$ret} then {
setup_xfail "*-*-*"
}
return $ret
}
# gdb_get_line_number TEXT [FILE]
#
# Search the source file FILE, and return the line number of the
# first line containing TEXT. If no match is found, an error is thrown.
#
# TEXT is a string literal, not a regular expression.
#
# The default value of FILE is "$srcdir/$subdir/$srcfile". If FILE is
# specified, and does not start with "/", then it is assumed to be in
# "$srcdir/$subdir". This is awkward, and can be fixed in the future,
# by changing the callers and the interface at the same time.
# In particular: gdb.base/break.exp, gdb.base/condbreak.exp,
# gdb.base/ena-dis-br.exp.
#
# Use this function to keep your test scripts independent of the
# exact line numbering of the source file. Don't write:
#
# send_gdb "break 20"
#
# This means that if anyone ever edits your test's source file,
# your test could break. Instead, put a comment like this on the
# source file line you want to break at:
#
# /* breakpoint spot: frotz.exp: test name */
#
# and then write, in your test script (which we assume is named
# frotz.exp):
#
# send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n"
#
# (Yes, Tcl knows how to handle the nested quotes and brackets.
# Try this:
# $ tclsh
# % puts "foo [lindex "bar baz" 1]"
# foo baz
# %
# Tcl is quite clever, for a little stringy language.)
#
# ===
#
# The previous implementation of this procedure used the gdb search command.
# This version is different:
#
# . It works with MI, and it also works when gdb is not running.
#
# . It operates on the build machine, not the host machine.
#
# . For now, this implementation fakes a current directory of
# $srcdir/$subdir to be compatible with the old implementation.
# This will go away eventually and some callers will need to
# be changed.
#
# . The TEXT argument is literal text and matches literally,
# not a regular expression as it was before.
#
# . State changes in gdb, such as changing the current file
# and setting $_, no longer happen.
#
# After a bit of time we can forget about the differences from the
# old implementation.
#
# --chastain 2004-08-05
proc gdb_get_line_number { text { file "" } } {
global srcdir
global subdir
global srcfile
if { "$file" == "" } then {
set file "$srcfile"
}
if { ! [regexp "^/" "$file"] } then {
set file "$srcdir/$subdir/$file"
}
if { [ catch { set fd [open "$file"] } message ] } then {
error "$message"
}
set found -1
for { set line 1 } { 1 } { incr line } {
if { [ catch { set nchar [gets "$fd" body] } message ] } then {
error "$message"
}
if { $nchar < 0 } then {
break
}
if { [string first "$text" "$body"] >= 0 } then {
set found $line
break
}
}
if { [ catch { close "$fd" } message ] } then {
error "$message"
}
if {$found == -1} {
error "undefined tag \"$text\""
}
return $found
}
# Continue the program until it ends.
#
# MSSG is the error message that gets printed. If not given, a
# default is used.
# COMMAND is the command to invoke. If not given, "continue" is
# used.
# ALLOW_EXTRA is a flag indicating whether the test should expect
# extra output between the "Continuing." line and the program
# exiting. By default it is zero; if nonzero, any extra output
# is accepted.
proc gdb_continue_to_end {{mssg ""} {command continue} {allow_extra 0}} {
global inferior_exited_re use_gdb_stub
if {$mssg == ""} {
set text "continue until exit"
} else {
set text "continue until exit at $mssg"
}
if {$allow_extra} {
set extra ".*"
} else {
set extra ""
}
# 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
}
gdb_test $command "Continuing..*Breakpoint .*exit.*" \
$text
} else {
# Continue until we exit. Should not stop again.
# Don't bother to check the output of the program, that may be
# extremely tough for some remote systems.
gdb_test $command \
"Continuing.\[\r\n0-9\]+${extra}(... EXIT code 0\[\r\n\]+|$inferior_exited_re normally).*"\
$text
}
}
proc rerun_to_main {} {
global gdb_prompt use_gdb_stub
if $use_gdb_stub {
gdb_run_cmd
gdb_expect {
-re ".*Breakpoint .*main .*$gdb_prompt $"\
{pass "rerun to main" ; return 0}
-re "$gdb_prompt $"\
{fail "rerun to main" ; return 0}
timeout {fail "(timeout) rerun to main" ; return 0}
}
} else {
send_gdb "run\n"
gdb_expect {
-re "The program .* has been started already.*y or n. $" {
send_gdb "y\n"
exp_continue
}
-re "Starting program.*$gdb_prompt $"\
{pass "rerun to main" ; return 0}
-re "$gdb_prompt $"\
{fail "rerun to main" ; return 0}
timeout {fail "(timeout) rerun to main" ; return 0}
}
}
}
# Print a message and return true if a test should be skipped
# due to lack of floating point suport.
proc gdb_skip_float_test { msg } {
if [target_info exists gdb,skip_float_tests] {
verbose "Skipping test '$msg': no float tests."
return 1
}
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
}
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_prompt
global srcdir
gdb_start
set xml_missing 0
gdb_test_multiple "set tdesc filename ${srcdir}/gdb.xml/trivial.xml" "" {
-re ".*XML support was disabled at compile time.*$gdb_prompt $" {
set xml_missing 1
}
-re ".*$gdb_prompt $" { }
}
gdb_exit
return $xml_missing
}
# Note: the procedure gdb_gnu_strip_debug will produce an executable called
# ${binfile}.dbglnk, which is just like the executable ($binfile) but without
# the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
# the name of a debuginfo only file. This file will be stored in the same
# subdirectory.
# Functions for separate debug info testing
# starting with an executable:
# foo --> original executable
# at the end of the process we have:
# foo.stripped --> foo w/o debug info
# foo.debug --> foo's debug info
# foo --> like foo, but with a new .gnu_debuglink section pointing to foo.debug.
# Return the build-id hex string (usually 160 bits as 40 hex characters)
# converted to the form: .build-id/ab/cdef1234...89.debug
# Return "" if no build-id found.
proc build_id_debug_filename_get { exec } {
set tmp [standard_output_file "${exec}-tmp"]
set objcopy_program [gdb_find_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} {
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"
}
# Create stripped files for DEST, replacing it. If ARGS is passed, it is a
# list of optional flags. The only currently supported flag is no-main,
# which removes the symbol entry for main from the separate debug file.
#
# Function returns zero on success. Function will return non-zero failure code
# on some targets not supporting separate debug info (such as i386-msdos).
proc gdb_gnu_strip_debug { dest args } {
# Use the first separate debug info file location searched by GDB so the
# run cannot be broken by some stale file searched with higher precedence.
set debug_file "${dest}.debug"
set strip_to_file_program [transform strip]
set objcopy_program [gdb_find_objcopy]
set debug_link [file tail $debug_file]
set stripped_file "${dest}.stripped"
# Get rid of the debug info, and store result in stripped_file
# something like gdb/testsuite/gdb.base/blah.stripped.
set result [catch "exec $strip_to_file_program --strip-debug ${dest} -o ${stripped_file}" output]
verbose "result is $result"
verbose "output is $output"
if {$result == 1} {
return 1
}
# Workaround PR binutils/10802:
# Preserve the 'x' bit also for PIEs (Position Independent Executables).
set perm [file attributes ${dest} -permissions]
file attributes ${stripped_file} -permissions $perm
# Get rid of everything but the debug info, and store result in debug_file
# This will be in the .debug subdirectory, see above.
set result [catch "exec $strip_to_file_program --only-keep-debug ${dest} -o ${debug_file}" output]
verbose "result is $result"
verbose "output is $output"
if {$result == 1} {
return 1
}
# If no-main is passed, strip the symbol for main from the separate
# file. This is to simulate the behavior of elfutils's eu-strip, which
# leaves the symtab in the original file only. There's no way to get
# objcopy or strip to remove the symbol table without also removing the
# debugging sections, so this is as close as we can get.
if { [llength $args] == 1 && [lindex $args 0] == "no-main" } {
set result [catch "exec $objcopy_program -N main ${debug_file} ${debug_file}-tmp" output]
verbose "result is $result"
verbose "output is $output"
if {$result == 1} {
return 1
}
file delete "${debug_file}"
file rename "${debug_file}-tmp" "${debug_file}"
}
# Link the two previous output files together, adding the .gnu_debuglink
# section to the stripped_file, containing a pointer to the debug_file,
# save the new file in dest.
# This will be the regular executable filename, in the usual location.
set result [catch "exec $objcopy_program --add-gnu-debuglink=${debug_file} ${stripped_file} ${dest}" output]
verbose "result is $result"
verbose "output is $output"
if {$result == 1} {
return 1
}
# Workaround PR binutils/10802:
# Preserve the 'x' bit also for PIEs (Position Independent Executables).
set perm [file attributes ${stripped_file} -permissions]
file attributes ${dest} -permissions $perm
return 0
}
# 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
# 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]
}
set expected_output [join $expected_lines ""]
gdb_test "${gdb_command}" "${expected_output}" $message
}
# 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.
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\]+"
"Command name abbreviations are allowed if unambiguous\."
}
set l_entire_body [concat $expected_initial_lines $l_stock_body]
eval [list help_test_raw "help ${command_class}" $l_entire_body] $args
}
# 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.
# The command must be a prefix command. EXPECTED_INITIAL_LINES
# are regular expressions that should match the beginning of output,
# 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 } {
set command [lindex $command_list 0]
if {[llength $command_list]>1} {
set full_command [lindex $command_list 1]
} else {
set full_command $command
}
# Use 'list' and not just {} because we want variables to
# 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]
if {[llength $args]>0} {
help_test_raw "help ${command}" $l_entire_body [lindex $args 0]
} else {
help_test_raw "help ${command}" $l_entire_body
}
}
# 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
set binfile [standard_output_file $executable]
set info_options ""
if { [lsearch -exact $options "c++"] >= 0 } {
set info_options "c++"
}
if [get_compiler_info ${info_options}] {
return -1
}
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} $args {
lappend sources_path "${srcdir}/${subdir}/${s}"
}
set ret [$func $sources_path "${binfile}" $options]
} else {
set objects {}
set i 0
foreach {s local_options} $args {
if { [gdb_compile "${srcdir}/${subdir}/${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 { $ret != "" } {
untested $testname
return -1
}
return 0
}
# 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 EXECUTABLE into GDB. EXECUTABLE is
# the basename of the binary.
proc clean_restart { executable } {
global srcdir
global subdir
set binfile [standard_output_file ${executable}]
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
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.
# Please refer to build_executable for parameter description.
proc prepare_for_testing { testname executable {sources ""} {options {debug}}} {
if {[build_executable $testname $executable $sources $options] == -1} {
return -1
}
clean_restart $executable
return 0
}
proc get_valueof { fmt exp default } {
global gdb_prompt
set test "get valueof \"${exp}\""
set val ${default}
gdb_test_multiple "print${fmt} ${exp}" "$test" {
-re "\\$\[0-9\]* = (.*)\[\r\n\]*$gdb_prompt $" {
set val $expect_out(1,string)
pass "$test ($val)"
}
timeout {
fail "$test (timeout)"
}
}
return ${val}
}
proc get_integer_valueof { exp default } {
global gdb_prompt
set test "get integer valueof \"${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 ($val)"
}
timeout {
fail "$test (timeout)"
}
}
return ${val}
}
proc get_hexadecimal_valueof { exp default } {
global gdb_prompt
send_gdb "print /x ${exp}\n"
set test "get hexadecimal valueof \"${exp}\""
gdb_expect {
-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]
}
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 $expect_out(1,string)
}
}
# Pick a reasonable default.
warning "Unable to read target-charset."
return "UTF-8"
}
# Get the current value for remotetimeout and return it.
proc get_remotetimeout { } {
global gdb_prompt
global decimal
gdb_test_multiple "show remotetimeout" "" {
-re "Timeout limit to wait for target to respond is ($decimal).*$gdb_prompt $" {
return $expect_out(1,string)
}
}
# Pick the default that gdb uses
warning "Unable to read remotetimeout"
return 300
}
# Set the remotetimeout to the specified timeout. Nothing is returned.
proc set_remotetimeout { timeout } {
global gdb_prompt
gdb_test_multiple "set remotetimeout $timeout" "" {
-re "$gdb_prompt $" {
verbose "Set remotetimeout to $timeout\n"
}
}
}
# 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 $len end]]
}
# Log gdb command line and script if requested.
if {[info exists TRANSCRIPT]} {
rename send_gdb real_send_gdb
rename remote_spawn real_remote_spawn
rename remote_close real_remote_close
global gdb_transcript
set gdb_transcript ""
global gdb_trans_count
set gdb_trans_count 1
proc remote_spawn {args} {
global gdb_transcript gdb_trans_count outdir
if {$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 $args]
}
}
# If GDB_PARALLEL exists, then set up the parallel-mode directories.
if {[info exists GDB_PARALLEL]} {
if {[is_remote host]} {
unset GDB_PARALLEL
} else {
file mkdir outputs temp cache
}
}
proc core_find {binfile {deletefiles {}} {arg ""}} {
global objdir subdir
set destcore "$binfile.core"
file delete $destcore
# Create a core file named "$destcore" rather than just "core", to
# avoid problems with sys admin types that like to regularly prune all
# files named "core" from the system.
#
# Arbitrarily try setting the core size limit to "unlimited" since
# this does not hurt on systems where the command does not work and
# allows us to generate a core on systems where it does.
#
# Some systems append "core" to the name of the program; others append
# the name of the program to "core"; still others (like Linux, as of
# May 2003) create cores named "core.PID". In the latter case, we
# 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 [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}"
foreach i "${coredir}/core ${coredir}/core.coremaker.c ${binfile}.core" {
if [remote_file build exists $i] {
remote_exec build "mv $i $destcore"
set found 1
}
}
# Check for "core.PID".
if { $found == 0 } {
set names [glob -nocomplain -directory $coredir core.*]
if {[llength $names] == 1} {
set corefile [file join $coredir [lindex $names 0]]
remote_exec build "mv $corefile $destcore"
set found 1
}
}
if { $found == 0 } {
# The braindamaged HPUX shell quits after the ulimit -c above
# without executing ${binfile}. So we try again without the
# ulimit here if we didn't find a core file above.
# Oh, I should mention that any "braindamaged" non-Unix system has
# the same problem. I like the cd bit too, it's really neat'n stuff.
catch "system \"(cd ${objdir}/${subdir}; ${binfile}; true) >/dev/null 2>&1\""
foreach i "${objdir}/${subdir}/core ${objdir}/${subdir}/core.coremaker.c ${binfile}.core" {
if [remote_file build exists $i] {
remote_exec build "mv $i $destcore"
set found 1
}
}
}
# Try to clean up after ourselves.
foreach deletefile $deletefiles {
remote_file build delete [file join $coredir $deletefile]
}
remote_exec build "rmdir $coredir"
if { $found == 0 } {
warning "can't generate a core file - core tests suppressed - check ulimit -c"
return ""
}
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.
proc gdb_target_symbol_prefix_flags {} {
if { [istarget "*-*-cygwin*"] || [istarget "i?86-*-mingw*"]
|| [istarget "*-*-msdosdjgpp*"] || [istarget "*-*-go32*"] } {
return "additional_flags=-DSYMBOL_PREFIX=\"_\""
} else {
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]
}
# Always load compatibility stuff.
load_lib future.exp