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|
# Interface between GDB and Insight.
# Copyright 1997, 1998, 1999 Cygnus Solutions
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License (GPL) as published by
# the Free Software Foundation; either version 2 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.
# This variable is reserved for this module. Ensure it is an array.
global gdbtk_state
set gdbtk_state(busyCount) 0
# This is run when a breakpoint changes. The arguments are the
# action, the breakpoint number, and the breakpoint info.
define_hook gdb_breakpoint_change_hook
# This is run when a `set' command successfully completes in gdb. The
# first argument is the gdb variable name (as a Tcl list). The second
# argument is the new value.
define_hook gdb_set_hook
####################################################################
# #
# GUI STATE HOOKS #
# #
####################################################################
# !!!!! NOTE !!!!!
# For debugging purposes, please put debug statements at the very
# beginning and ends of all GUI state hooks.
# GDB_BUSY_HOOK
# This hook is used to register a callback when the UI should
# be disabled because the debugger is either busy or talking
# to the target.
#
# All callbacks should disable ALL user input which could cause
# any state changes in either the target or the debugger.
define_hook gdb_busy_hook
# GDB_IDLE_HOOK
# This hook is used to register a callback when the UI should
# be enabled because the debugger is no longer busy.
#
# All callbacks should enable user input. These callbacks
# should also be as fast as possible to avoid any significant
# time delays when enabling the UI.
define_hook gdb_idle_hook
# GDB_UPDATE_HOOK
# This hook is used to register a callback to update the widget
# when debugger state has changed.
define_hook gdb_update_hook
# GDB_NO_INFERIOR_HOOK
# This hook is used to register a callback which should be invoked
# whenever there is no inferior (either at startup time or when
# an inferior is killed).
#
# All callbacks should reset their windows to a known, "startup"
# state.
define_hook gdb_no_inferior_hook
# GDB_DISPLAY_CHANGE_HOOK
# This is run when a display changes. The arguments are the action,
# the breakpoint number, and (optionally) the value.
define_hook gdb_display_change_hook
# GDB_TRACE_FIND_HOOK
# This hook is run by the trace find command. It is used to switch
# from control to browse mode when the user runs tfind commands...
#
define_hook gdb_trace_find_hook
# ------------------------------------------------------------------
# gdbtk_tcl_preloop - This function is called after gdb is initialized
# but before the mainloop is started. It sets the app name, and
# opens the first source window.
# ------------------------------------------------------------------
proc gdbtk_tcl_preloop { } {
global gdb_exe_name
set_baud
tk appname gdbtk
# If there was an error loading an executible specified on the command line
# then we will have called pre_add_symbol, which would set us to busy,
# but not the corresponding post_add_symbol. Do this here just in case...
after idle gdbtk_idle
ManagedWin::startup
SrcWin::point_to_main
set msg ""
catch {gdb_cmd "info files"} msg
set line1 [string range $msg 0 [string first \n $msg]]
if {[regexp {Symbols from "(.*)"\.} $line1 dummy name]} {
set gdb_exe_name $name
}
gdbtk_update
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_busy - run all busy hooks
#
# Use this procedure from within GUI code to indicate that
# the debugger is busy, either running the inferior or
# talking to the target. This will call all the registered
# gdb_busy_hook's.
# ------------------------------------------------------------------
proc gdbtk_busy {} {
set err [catch {run_hooks gdb_busy_hook} txt]
if {$err} {
dbug E "$txt"
}
# Force the screen to update
update
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_update - run all update hooks
#
# Use this procedure to force all widgets to update
# themselves. This hook is usually run after command
# that could change target state.
# ------------------------------------------------------------------
proc gdbtk_update {} {
set err [catch {run_hooks gdb_update_hook} txt]
if {$err} {
dbug E "$txt"
}
# Force the screen to update
update
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_update_safe - run all update hooks in a safe way
#
# Use this procedure to force all widgets to update
# themselves. This hook is usually run after command
# that could change target state.
# Like gdbtk_update but safe to be used in "after idle"
# which is used in update hooks.
# ------------------------------------------------------------------
proc gdbtk_update_safe {} {
global gdb_running
# Fencepost: Do not update if we are running the target
# We get here because script commands may have changed memory or
# registers and "after idle" events registered as a consequence
# If we try to update while the target is running we are doomed.
if {!$gdb_running} {
gdbtk_update
}
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_idle - run all idle hooks
#
# Use this procedure to run all the gdb_idle_hook's,
# which should free the UI for more user input. This
# hook should only be run AFTER all communication with
# the target has halted, otherwise the risk of two (or
# more) widgets talking to the target arises.
# ------------------------------------------------------------------
proc gdbtk_idle {} {
global gdb_running
# Put the unfiltered hook back in place, just in case
# somebody swapped it out, and then died before they
# could replace it.
gdb_restore_fputs
set err [catch {run_hooks gdb_idle_hook} txt]
if {$err} {
dbug E "idle_hook error: $txt"
}
if {!$gdb_running} {
set err [catch {run_hooks gdb_no_inferior_hook} txt]
if {$err} {
dbug E "no_inferior_hook error: $txt"
}
}
# Force the screen to update
update
}
define_hook download_progress_hook
# Random hook of procs to call just before exiting.
define_hook gdb_quit_hook
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_quit_check - Ask if the user really wants to quit.
# ------------------------------------------------------------------
proc gdbtk_quit_check {} {
global gdb_downloading gdb_running gdb_exe_name
if {$gdb_downloading} {
set msg "Downloading to target,\n really close the debugger?"
if {![gdbtk_tcl_query $msg no]} {
return 0
}
} elseif {$gdb_running} {
# While we are running the inferior, gdb_cmd is fenceposted and
# returns immediately. Therefore, we need to ask here. Do we need
# to stop the target, too?
set msg "A debugging session is active.\n"
append msg "Do you still want to close the debugger?"
if {![gdbtk_tcl_query $msg no]} {
return 0
}
}
# If we have an executable file loaded, save a session associated to it
if {$gdb_exe_name != ""} {
session_save
}
return 1
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_quit - Quit the debugger
# Call this procedure anywhere the user can request to quit.
# This procedure will ask all the right questions and run
# all the gdb_quit_hooks before exiting.
# ------------------------------------------------------------------
proc gdbtk_quit {} {
if {[gdbtk_quit_check]} {
ManagedWin::shutdown
pref_save
gdb_force_quit
}
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_cleanup - called by GDB immediately
# before exiting. Last chance to cleanup!
# ------------------------------------------------------------------
proc gdbtk_cleanup {} {
# This is a sign that it is too late to be doing updates, etc...
set ::gdb_shutting_down 1
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_query -
# ------------------------------------------------------------------
proc gdbtk_tcl_query {message {default yes}} {
global gdb_checking_for_exit gdbtk_state tcl_platform
# FIXME We really want a Help button here. But Tk's brain-damaged
# modal dialogs won't really allow it. Should have async dialog
# here.
set title "GDB"
set modal "task"
# If we are checking whether to exit gdb, we want a system modal
# box. Otherwise it may be hidden by some other program, and the
# user will have no idea what is going on.
if {[info exists gdb_checking_for_exit] && $gdb_checking_for_exit} {
set modal "system"
}
if {$tcl_platform(platform) == "windows"} {
# On Windows, we want to only ask each question once.
# If we're already asking the question, just wait for the answer
# to come back.
set ans [list answer $message]
set pending [list pending $message]
if {[info exists gdbtk_state($pending)]} {
incr gdbtk_state($pending)
} else {
set gdbtk_state($pending) 1
set gdbtk_state($ans) {}
ide_messageBox [list set gdbtk_state($ans)] -icon warning \
-default $default -message $message -title $title \
-type yesno -modal $modal -parent .
}
vwait gdbtk_state($ans)
set r $gdbtk_state($ans)
if {[incr gdbtk_state($pending) -1] == 0} {
# Last call waiting for this answer, so clear it.
unset gdbtk_state($pending)
unset gdbtk_state($ans)
}
} else {
# On Unix, apparently it doesn't matter how many times we ask a
# question.
set r [tk_messageBox -icon warning -default $default \
-message $message -title $title \
-type yesno -modal $modal -parent .]
}
update idletasks
return [expr {$r == "yes"}]
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_warning -
# ------------------------------------------------------------------
proc gdbtk_tcl_warning {message} {
debug "$message"
# ADD a warning message here if the gui must NOT display it
# add the message at the beginning of the switch followed by -
switch -regexp $message {
"Unable to find dynamic linker breakpoint function.*" {return}
default {show_warning $message}
}
}
# ------------------------------------------------------------------
# PROC: show_warning -
# ------------------------------------------------------------------
proc show_warning {message} {
global tcl_platform
# FIXME We really want a Help button here. But Tk's brain-damaged
# modal dialogs won't really allow it. Should have async dialog
# here.
set title "GDB"
set modal "task"
# On Windows, we use ide_messageBox which runs the Win32 MessageBox function
# in another thread. This permits a program which handles IDE requests from
# other programs to not return from the request until the MessageBox completes.
# This is not possible without using another thread, since the MessageBox
# function call will be running its own event loop, and will be higher on the
# stack than the IDE request.
#
# On Unix tk_messageBox runs in the regular Tk event loop, so
# another thread is not required.
if {$tcl_platform(platform) == "windows"} {
ide_messageBox [list set r] -icon warning \
-default ok -message $message -title $title \
-type ok -modal $modal -parent .
} else {
set r [tk_messageBox -icon warning -default ok \
-message $message -title $title \
-type ok -modal $modal -parent .]
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_ignorable_warning -
# ------------------------------------------------------------------
proc gdbtk_tcl_ignorable_warning {class message} {
catch {ManagedWin::open WarningDlg -center -transient \
-message [list $message] -ignorable $class}
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_fputs -
# ------------------------------------------------------------------
proc gdbtk_tcl_fputs {message} {
global gdbtk_state
# Restore the fputs hook, in case anyone forgot to put it back...
gdb_restore_fputs
if {$gdbtk_state(console) != ""} {
$gdbtk_state(console) insert $message
}
}
# ------------------------------------------------------------------
# PROC: echo -
# ------------------------------------------------------------------
proc echo {args} {
gdbtk_tcl_fputs [concat $args]\n
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_fputs_error - write an error message
# ------------------------------------------------------------------
proc gdbtk_tcl_fputs_error {message} {
if {$::gdbtk_state(console) != ""} {
$::gdbtk_state(console) einsert $message err_tag
update
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_fputs_log - write a log message
# ------------------------------------------------------------------
proc gdbtk_tcl_fputs_log {message} {
if {$::gdbtk_state(console) != ""} {
$::gdbtk_state(console) einsert $message log_tag
update
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_fputs_target - write target output
# ------------------------------------------------------------------
proc gdbtk_tcl_fputs_target {message} {
if {$::gdbtk_state(console) != ""} {
$::gdbtk_state(console) einsert $message target_tag
update
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_flush -
# ------------------------------------------------------------------
proc gdbtk_tcl_flush {} {
debug [info level 0]
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_start_variable_annotation -
# ------------------------------------------------------------------
proc gdbtk_tcl_start_variable_annotation {valaddr ref_type stor_cl
cum_expr field type_cast} {
debug [info level 0]
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_end_variable_annotation -
# ------------------------------------------------------------------
proc gdbtk_tcl_end_variable_annotation {} {
debug [info level 0]
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_breakpoint -
# ------------------------------------------------------------------
proc gdbtk_tcl_breakpoint {action bpnum addr line file bp_type enabled thread} {
# debug "BREAKPOINT: $action $bpnum $addr $line $file $bp_type $enabled $thread "
run_hooks gdb_breakpoint_change_hook $action $bpnum $addr $line $file $bp_type $enabled $thread
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_tracepoint -
# ------------------------------------------------------------------
proc gdbtk_tcl_tracepoint {action tpnum addr line file pass_count} {
# debug "TRACEPOINT: $action $tpnum $addr $line $file $pass_count"
run_hooks gdb_breakpoint_change_hook $action $tpnum $addr $line $file tracepoint
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_trace_find_hook -
# ------------------------------------------------------------------
proc gdbtk_tcl_trace_find_hook {arg from_tty} {
# debug "$arg $from_tty"
run_hooks gdb_trace_find_hook $arg $from_tty
}
################################################################
#
# Handle `readline' interface.
#
# Run a command that is known to use the "readline" interface. We set
# up the appropriate buffer, and then run the actual command via
# gdb_cmd. Calls into the "readline" callbacks just return values
# from our list.
# ------------------------------------------------------------------
# PROC: gdb_run_readline_command -
# ------------------------------------------------------------------
proc gdb_run_readline_command {command args} {
global gdbtk_state
# debug "$command $args"
set gdbtk_state(readlineArgs) $args
gdb_cmd $command
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_readline_begin -
# ------------------------------------------------------------------
proc gdbtk_tcl_readline_begin {message} {
global gdbtk_state
# debug "readline begin"
set gdbtk_state(readline) 0
if {$gdbtk_state(console) != ""} {
$gdbtk_state(console) insert $message
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_readline -
# ------------------------------------------------------------------
proc gdbtk_tcl_readline {prompt} {
global gdbtk_state
# debug "$prompt"
if {[info exists gdbtk_state(readlineArgs)]} {
# Not interactive, so pop the list, and print element.
set cmd [lvarpop gdbtk_state(readlineArgs)]
command::insert_command $cmd
} else {
# Interactive.
# debug "interactive"
set gdbtk_state(readline) 1
$gdbtk_state(console) activate $prompt
vwait gdbtk_state(readline_response)
set cmd $gdbtk_state(readline_response)
# debug "got response: $cmd"
unset gdbtk_state(readline_response)
set gdbtk_state(readline) 0
}
return $cmd
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_readline_end -
# ------------------------------------------------------------------
proc gdbtk_tcl_readline_end {} {
global gdbtk_state
# debug "readline_end"
catch {unset gdbtk_state(readlineArgs)}
unset gdbtk_state(readlineActive)
command::end_multi_line_input
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_busy - this is called immediately before gdb
# executes a command.
#
# ------------------------------------------------------------------
proc gdbtk_tcl_busy {} {
global gdbtk_state
if {[incr gdbtk_state(busyCount)] == 1} {
gdbtk_busy
}
}
################################################################
#
#
#
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_idle - this is called immediately after gdb
# executes a command.
# ------------------------------------------------------------------
proc gdbtk_tcl_idle {} {
global gdbtk_state
if {$gdbtk_state(busyCount) > 0
&& [incr gdbtk_state(busyCount) -1] == 0} {
gdbtk_update
gdbtk_idle
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_tstart -
# ------------------------------------------------------------------
proc gdbtk_tcl_tstart {} {
set srcwin [lindex [manage find src] 0]
$srcwin.toolbar do_tstop 0
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_tstop -
# ------------------------------------------------------------------
proc gdbtk_tcl_tstop {} {
set srcwin [lindex [manage find src] 0]
$srcwin.toolbar do_tstop 0
}
# ------------------------------------------------------------------
# PROC: gdbtk_tcl_display -
#
# A display changed. ACTION is `enable', `disable', `delete',
# `create', or `update'. VALUE is only meaningful in the `update'
# case.
# ------------------------------------------------------------------
proc gdbtk_tcl_display {action number {value {}}} {
# Handle create explicitly.
if {$action == "create"} {
manage create_if_never data
}
run_hooks gdb_display_change_hook $action $number $value
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_register_changed
# This hook is called from value_assign to inform us that
# the user has changed the contents of a register.
# ------------------------------------------------------------------
proc gdbtk_register_changed {} {
after idle gdbtk_update_safe
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_memory_changed
# This hook is called from value_assign to inform us that
# the user has changed the contents of memory (including
# the program's variables).
# ------------------------------------------------------------------
proc gdbtk_memory_changed {} {
after idle gdbtk_update_safe
}
####################################################################
# #
# FILE HOOKS #
# #
# There are a number of hooks that are installed in gdb to #
# aid with file-like commands (selecting an exectuable and #
# loading symbols): #
# - exec_file_display_hook #
# Called in exec_file_command. The tcl hook is #
# "gdbtk_tcl_exec_file_display" #
# - file_changed_hook #
# Called in file_command. The tcl hook is #
# "gdbtk_tcl_file_changed" #
# - pre_add_symbol_hook #
# Called in symbol_file_add before loading. The tcl #
# hook is "gdbtk_tcl_pre_add_symbol" #
# - post_add_symbol_hook #
# Called in symbol_file_add when finished loading #
# a symbol file. The tcl hook is #
# "gdbtk_tcl_post_add_symbol" #
# #
# Together, these hooks should give the gui enough information #
# to cover the two most common uses of file commands: #
# 1. executable with symbols #
# 2. separate executable and symbol file(s) #
# #
####################################################################
define_hook file_changed_hook
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_tcl_pre_add_symbol
# This hook is called before any symbol files
# are loaded so that we can inform the user.
# ------------------------------------------------------------------
proc gdbtk_tcl_pre_add_symbol {file} {
gdbtk_busy
# Display some feedback to the user
set srcs [ManagedWin::find SrcWin]
foreach w $srcs {
$w set_status "Reading symbols from $file..."
}
update idletasks
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_tcl_post_add_symbol
# This hook is called after we finish reading a symbol
# file, so the source windows' combo boxes need filling.
# ------------------------------------------------------------------
proc gdbtk_tcl_post_add_symbol {} {
set srcs [ManagedWin::find SrcWin]
foreach w $srcs {
$w fillNameCB
}
gdbtk_idle
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_tcl_file_changed
# This hook is called whenever the exec file changes.
# This is called AFTER symbol reading, so it is
# ok to point to main when we get called.
# ------------------------------------------------------------------
proc gdbtk_tcl_file_changed {filename} {
SrcWin::point_to_main
run_hooks file_changed_hook
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_tcl_exec_file_display
# This hook is called from exec_file_command. It's purpose
# is to setup the gui for a new file. Note that we cannot
# look for main, since this hook is called BEFORE we
# read symbols. If the user used the "file" command,
# gdbtk_tcl_file_changed will set the source window to
# look at main. If the user used "exec-file" and "add-symbol"
# commands, then we cannot look for main.
# ------------------------------------------------------------------
proc gdbtk_tcl_exec_file_display {filename} {
global gdb_loaded gdb_running gdb_exe_name gdb_target_changed
# DO NOT CALL set_exe here!
# Clear out the GUI, don't do it if filename is "" so that
# you avoid distracting flashes in the source window.
if {$filename != ""} {
gdbtk_clear_file
}
# set_exe calls file command with the filename in
# quotes, so we need to strip them here.
set gdb_exe_name [string trim $filename \']
SrcWin::point_to_main
}
# ------------------------------------------------------------------
# PROCEDURE: gdbtk_locate_main
# This proc tries to locate a suitable main function from
# a list of names defined in the gdb/main_names preference;
# returns the linespec (see below) if found, or a null string
# if not.
#
# The return linespec looks like this:
# 0: basename of the file
# 1: function name
# 2: full filename
# 3: source line number
# 4: address
# 5: current PC - which will often be the same as address, but not when
# 6: shared library name if the pc is in a shared lib
# we are browsing, or walking the stack.
#
# ------------------------------------------------------------------
proc gdbtk_locate_main {} {
set main_names [pref get gdb/main_names]
debug "Searching $main_names"
foreach main $main_names {
if {![catch {gdb_search functions $main -static 1}] \
&& ![catch {gdb_loc $main} linespec]} {
return $linespec
}
}
if {![catch gdb_entry_point entry_point]
&& ![catch {gdb_loc "*$entry_point"} linespec]} {
return $linespec
}
return {}
}
##############################################
# The rest of this file is an assortment of Tcl wrappers
# for various bits of gdb functionality.
#
#############################################
# ------------------------------------------------------------------
# PROC: set_exe_name - Update the executable name
# ------------------------------------------------------------------
proc set_exe_name {exe} {
global gdb_exe_name gdb_exe_changed
#debug "exe=$exe gdb_exe_name=$gdb_exe_name"
if {$gdb_exe_name != ""} then {
session_save
}
set gdb_exe_name $exe
set gdb_exe_changed 1
}
# ------------------------------------------------------------------
# PROC: set_exe -
# ------------------------------------------------------------------
proc set_exe {} {
global gdb_exe_name gdb_exe_changed gdb_target_changed gdb_loaded file_done
# debug "gdb_exe_changed=$gdb_exe_changed gdb_exe_name=$gdb_exe_name"
if {$gdb_exe_changed} {
set gdb_exe_changed 0
if {$gdb_exe_name == ""} { return }
set err [catch {gdb_cmd "file '$gdb_exe_name'" 1} msg]
if {$err} {
dbug E "$msg"
set l [split $msg :]
set errtxt [join [lrange $l 1 end] :]
set msg "Error loading \"$gdb_exe_name\":\n"
append msg $errtxt
tk_messageBox -title "Error" -message $msg -icon error \
-type ok
set gdb_exe_name {}
set file_done 0
return
} elseif {[string match {*no debugging symbols found*} $msg]} {
tk_messageBox -icon error -default ok \
-title "GDB" -type ok -modal system \
-message "This executable has no debugging information."
set gdb_exe_name {}
set file_done 0
return
}
# force new target command
set gdb_target_changed 1
set gdb_loaded 0
set file_done 1
}
}
# ------------------------------------------------------------------
# _open_file - open a file dialog to select a file for debugging.
# If filename is not "", then open this file.
# ------------------------------------------------------------------
proc _open_file {{file ""}} {
global gdb_running gdb_downloading tcl_platform
if {$gdb_running || $gdb_downloading} {
# We are already running/downloading something..
if {$gdb_running} {
set msg "A debugging session is active.\nAbort session and load new file?"
} else {
set msg "A download is in progress.\nAbort download and load new file?"
}
if {![gdbtk_tcl_query $msg no]} {
return 0
}
}
if {[string compare $file ""] == 0} {
set curFocus [focus]
# Make sure that this is really a modal dialog...
# FIXME: Add a disable_all to ide_grab_support.
ide_grab_support disable_except {}
set file [tk_getOpenFile -parent . -title "Load New Executable"]
ide_grab_support enable_all
# If no one had the focus before, leave it that way (since I
# am not sure how this could happen... Also, the vwait in
# tk_getOpenFile could have allowed the curFocus window to actually
# be destroyed, so make sure it is still around.
if {$curFocus != "" && [winfo exists $curFocus]} {
raise [winfo toplevel $curFocus]
focus $curFocus
}
} elseif {![file exists $file]} {
tk_messageBox -message "File \"$file\" does not exist"
return 0
}
if {$file == ""} {
return 0
}
# Add the base dir for this file to the source search path.
set root [file dirname $file]
if {$tcl_platform(platform) == "windows"} {
set root [ide_cygwin_path to_posix $root]
set file [ide_cygwin_path to_posix $file]
}
catch {gdb_cmd "cd $root"}
# Clear out gdb's internal state, so that it will allow us
# (the gui) to ask the user questions.
gdb_clear_file
# The gui needs to set this...
set_exe_name $file
# set_exe needs to be called anywhere the gui does a file_command...
if {[set_exe] == "cancel"} {
gdbtk_update
gdbtk_idle
return 0
}
return 1
}
# ------------------------------------------------------------------
# PROC: set_target_name - Update the target name.
#
# This function will prompt for a new target and update
# all variables.
#
# If $prompt is 0 it will just update gdb_target_cmd from gdb_target.
#
# RETURN:
# 1 if successful,
# 0 if the not (the user canceled the target selection dialog)
# ------------------------------------------------------------------
proc set_target_name {{prompt 1}} {
global gdb_target_name gdb_target_changed gdb_exe_changed
global gdb_target_cmd gdb_pretty_name
# debug
set cmd_tmp $gdb_target_cmd
set name_tmp $gdb_target_name
# debug "gdb_target_name=$gdb_target_name; name_tmp=$name_tmp"
if {$prompt} {
set win [ManagedWin::open TargetSelection -exportcancel 1 -center \
-transient]
# need to call update here so the target selection dialog can take over
update idletasks
}
# debug "gdb_target_name=$gdb_target_name"
if {$gdb_target_name == "CANCEL"} {
set gdb_target_cmd $cmd_tmp
set gdb_target_name $name_tmp
return 0
}
set target $gdb_target_name
set targ [TargetSelection::getname $target cmd]
set gdb_target_cmd $cmd_tmp
set gdb_pretty_name [TargetSelection::getname $target pretty-name]
# debug "target=$target pretty_name=$gdb_pretty_name"
set targ_opts ""
switch -regexp -- $gdb_target_name {
sim|ice {
set targ $gdb_target_name
set targ_opts [pref getd gdb/load/${gdb_target_name}-opts]
}
default {
set port [pref getd gdb/load/$target-port]
if {$port == ""} {
set port [pref get gdb/load/default-port]
}
set portnum [pref getd gdb/load/$target-portname]
if {$portnum == ""} {
set portnum [pref get gdb/load/default-portname]
}
set hostname [pref getd gdb/load/$target-hostname]
if {$hostname == ""} {
set hostname [pref get gdb/load/default-hostname]
}
# replace "com1" with the real port name
set targ [lrep $targ "com1" $port]
# replace "tcpX" with hostname:portnum
set targ [lrep $targ "tcpX" ${hostname}:${portnum}]
# replace "ethX" with hostname
set targ [lrep $targ "ethX" e=${hostname}]
}
}
# debug "targ=$targ gdb_target_cmd=$gdb_target_cmd"
if {$gdb_target_cmd != $targ || $gdb_target_changed} {
set gdb_target_changed 1
set gdb_target_cmd "$targ $targ_opts"
}
return 1
}
# ------------------------------------------------------------------
# PROC: set_target - Change the target
# ------------------------------------------------------------------
proc set_target {} {
global gdb_target_cmd gdb_target_changed gdb_pretty_name gdb_target_name
# debug "gdb_target_changed=$gdb_target_changed gdb_target_cmd=\"$gdb_target_cmd\""
# debug "gdb_target_name=$gdb_target_name"
if {$gdb_target_cmd == "" && ![TargetSelection::native_debugging]} {
if {$gdb_target_name == ""} {
set prompt 1
# get the default
#set gdb_target_name [pref getd gdb/load/target]
} else {
set prompt 0
}
if {![set_target_name $prompt]} {
set gdb_target_name ""
return CANCELED
}
}
if {$gdb_target_changed} {
set srcWin [lindex [ManagedWin::find SrcWin] 0]
$srcWin set_status "Trying to communicate with target $gdb_pretty_name" 1
update
catch {gdb_cmd "detach"}
debug "CONNECTING TO TARGET: $gdb_target_cmd"
set err [catch {gdb_immediate "target $gdb_target_cmd"} msg ]
$srcWin set_status
if {$err} {
if {[string first "Program not killed" $msg] != -1} {
return CANCELED
}
update
set dialog_title "GDB"
set debugger_name "GDB"
tk_messageBox -icon error -title $dialog_title -type ok \
-modal task -message "$msg\n\n$debugger_name cannot connect to the target board\
using [lindex $gdb_target_cmd 1].\nVerify that the board is securely connected and, if\
necessary,\nmodify the port setting with the debugger preferences."
return ERROR
}
if {![catch {pref get gdb/load/$gdb_target_name-after_attaching} aa] && $aa != ""} {
if {[catch {gdb_cmd $aa} err]} {
catch {[ManagedWin::find Console] einsert $err err_tag}
}
}
set gdb_target_changed 0
return TARGET_CHANGED
}
return TARGET_UNCHANGED
}
# ------------------------------------------------------------------
# PROC: run_executable -
#
# This procedure is used to run an executable. It is called when the
# run button is used.
# ------------------------------------------------------------------
proc run_executable { {auto_start 1} } {
global gdb_loaded gdb_downloading gdb_target_name
global gdb_exe_changed gdb_target_changed gdb_program_has_run
global gdb_running gdb_exe_name tcl_platform
# debug "auto_start=$auto_start gdb_target_name=$gdb_target_name"
set gdb_running_saved $gdb_running
set gdb_running 0
# No executable was specified. Prompt the user for one.
if {$gdb_exe_name == ""} {
if {[_open_file]} {
run_executable $auto_start
return
} else {
# The user canceled the load of a new executable.
return
}
}
if {$gdb_downloading} { return }
if {[pref get gdb/control_target]} {
# Breakpoint mode
set_exe
# Attach
if {$gdb_target_name == "" || [pref get gdb/src/run_attach]} {
if {[gdbtk_attach_remote] == "ATTACH_CANCELED"} {
return
}
}
# Download
if {[pref get gdb/src/run_load] && $gdb_target_name != "exec"} {
debug "Downloading..."
set gdb_loaded 0
# if the app has not been downloaded or the app has already
# started, we need to redownload before running
if {!$gdb_loaded} {
if {[Download::download_it]} {
# user cancelled the command
# debug "user cancelled the command $gdb_running"
set gdb_loaded 0
gdbtk_update
gdbtk_idle
}
if {!$gdb_loaded} {
# The user cancelled the download after it started
# debug "User cancelled the download after it started $gdb_running"
gdbtk_update
gdbtk_idle
return
}
}
}
# _Now_ set/clear breakpoints
if {[pref get gdb/load/exit] && ![TargetSelection::native_debugging]} {
debug "Setting new BP at exit"
catch {gdb_cmd "clear exit"}
catch {gdb_cmd "break exit"}
}
if {[pref get gdb/load/main]} {
set main "main"
if {[set linespec [gdbtk_locate_main]] != ""} {
set main [lindex $linespec 1]
}
debug "Setting new BP at $main"
catch {gdb_cmd "clear $main"}
catch {gdb_cmd "break $main"}
}
# set BP at user-specified function
if {[pref get gdb/load/bp_at_func]} {
foreach bp [pref get gdb/load/bp_func] {
debug "Setting BP at $bp"
catch {gdb_cmd "clear $bp"}
catch {gdb_cmd "break $bp"}
}
}
# This is a hack. If the target is "sim" the opts are appended
# to the target command. Otherwise they are assumed to be command line
# args. What about simulators that accept command line args?
if {$gdb_target_name != "sim"} {
# set args
set gdb_args [pref getd gdb/load/$gdb_target_name-opts]
if { $gdb_args != ""} {
debug "set args $gdb_args"
gdb_set_inferior_args $gdb_args
}
}
# If the user requested it, start an xterm for use as the
# inferior's tty.
if {$tcl_platform(platform) != "windows"
&& [pref getd gdb/process/xtermtty] == "yes"} {
tty::create
}
#
# Run
if {$auto_start} {
if {[pref get gdb/src/run_run]} {
debug "Runnning target..."
set run run
} else {
debug "Continuing target..."
set run cont
}
if {$gdb_target_name == "exec"} {
set run run
}
if {[catch {gdb_immediate $run} msg]} {
dbug W "msg=$msg"
gdbtk_idle
if {[string match "*help target*" $msg]} {
set_target_name
run_executable $auto_start
return
}
if {[string match "No executable*" $msg]} {
# No executable was specified. Prompt the user for one.
if {[_open_file]} {
run_executable $auto_start
} else {
debug "CANCELLED"
}
return
}
set gdb_running $gdb_running_saved
} else {
debug RUNNING
set gdb_running 1
}
} else {
SrcWin::point_to_main
}
gdbtk_update
gdbtk_idle
} elseif {[pref get gdb/mode]} {
# tracepoint -- need to tstart
set gdb_running 1
tstart
}
return
}
# ------------------------------------------------------------------
# PROC: gdbtk_attach_remote - attach to the target
# This proc returns the following status messages:
#
# ATTACH_ERROR: An error occurred connecting to target.
# ATTACH_CANCELED: The attach was canceled.
# ATTACH_TARGET_CHANGED: Successfully attached, target changed.
# ATTACH_TARGET_UNCHANGED: Successfully attached, target unchanged.
# UNKNOWN: An unknown error occurred.
# ------------------------------------------------------------------
proc gdbtk_attach_remote {} {
global gdb_loaded
debug "Attaching...."
set r UNKNOWN
while {1} {
switch [set_target] {
ERROR {
# target command failed, ask for a new target name
if {![set_target_name]} {
# canceled again
set r ATTACH_ERROR
break
}
}
TARGET_CHANGED {
# success -- target changed
set gdb_loaded 0
set r ATTACH_TARGET_CHANGED
break
}
CANCELED {
# command cancelled by user
set r ATTACH_CANCELED
break
}
TARGET_UNCHANGED {
# success -- target NOT changed (i.e., rerun)
set r ATTACH_TARGET_UNCHANGED
break
}
}
}
# debug "Attach returning: \"$r\""
return $r
}
# ------------------------------------------------------------------
# PROC: gdbtk_connect: connect to a remote target
# in asynch mode if async is 1
# ------------------------------------------------------------------
proc gdbtk_connect {{async 0}} {
global file_done
debug "async=$async"
gdbtk_busy
set result [gdbtk_attach_remote]
switch $result {
ATTACH_ERROR {
set successful 0
}
ATTACH_TARGET_CHANGED {
if {[pref get gdb/load/check] && $file_done} {
set err [catch {gdb_cmd "compare-sections"} errTxt]
if {$err} {
set successful 0
tk_messageBox -title "Error" -message $errTxt \
-icon error -type ok
break
}
}
tk_messageBox -title "GDB" -message "Successfully connected" \
-icon info -type ok
set successful 1
}
ATTACH_CANCELED {
tk_messageBox -title "GDB" -message "Connection Canceled" -icon info \
-type ok
set successful 0
}
ATTACH_TARGET_UNCHANGED {
tk_messageBox -title "GDB" -message "Successfully connected" \
-icon info -type ok
set successful 1
}
default {
dbug E "Unhandled response from gdbtk_attach_remote: \"$result\""
set successful 0
}
}
gdbtk_idle
# Whenever we attach, we need to do an update
if {$successful} {
gdbtk_attached
}
return $successful
}
# ------------------------------------------------------------------
# PROC: gdbtk_step - step the target
# ------------------------------------------------------------------
proc gdbtk_step {} {
catch {gdb_immediate step}
}
# ------------------------------------------------------------------
# PROC: gdbtk_next
# ------------------------------------------------------------------
proc gdbtk_next {} {
catch {gdb_immediate next}
}
# ------------------------------------------------------------------
# PROC: gdbtk_finish
# ------------------------------------------------------------------
proc gdbtk_finish {} {
catch {gdb_immediate finish}
}
# ------------------------------------------------------------------
# PROC: gdbtk_continue
# ------------------------------------------------------------------
proc gdbtk_continue {} {
catch {gdb_immediate continue}
}
# ------------------------------------------------------------------
# PROC: gdbtk_stepi
# ------------------------------------------------------------------
proc gdbtk_stepi {} {
catch {gdb_immediate stepi}
}
# ------------------------------------------------------------------
# PROC: gdbtk_nexti
# ------------------------------------------------------------------
proc gdbtk_nexti {} {
catch {gdb_immediate nexti}
}
# ------------------------------------------------------------------
# PROC: gdbtk_attached
# ------------------------------------------------------------------
#
# This is called AFTER gdb has successfully done an attach. Use it to
# bring the GUI up to a current state...
proc gdbtk_attached {} {
gdbtk_update
}
# ------------------------------------------------------------------
# PROC: gdbtk_detached
# ------------------------------------------------------------------
#
# This is called AFTER gdb has successfully done an detach. Use it to
# bring the GUI up to a current state...
proc gdbtk_detached {} {
if {!$::gdb_shutting_down} {
run_hooks gdb_no_inferior_hook
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_stop
# ------------------------------------------------------------------
#
# The stop button is tricky. In order to use the stop button,
# the debugger must be able to keep gui alive while target_wait is
# blocking (so that the user can interrupt or detach from it).
#
# The best solution for this is to capture gdb deep down where it
# can block. For _any_ target board, this will be in either
# serial or socket code. These places call ui_loop_hook to
# keep us alive. For native unix, we use an interval timer.
# Simulators either call ui_loop_hook directly (older sims, at least)
# or they call gdb's os_poll_quit callback, where we insert a call
# to ui_loop_hook. Some targets (like v850ice and windows native)
# require a call to ui_loop_hook directly in target_wait. See comments
# before gdb_stop and x_event to find out more about how this is accomplished.
#
# The stop button's behavior:
# Pressing the stop button should attempt to stop the target. If, after
# some time (like 3 seconds), gdb fails to fall out of target_wait (i.e.,
# the gui's idle hooks are run), then open a dialog asking the user if
# he'd like to detach.
proc gdbtk_stop {} {
global _gdbtk_stop
if {$_gdbtk_stop(timer) == ""} {
add_hook gdb_idle_hook gdbtk_stop_idle_callback
set _gdbtk_stop(timer) [after 3000 gdbtk_detach]
catch {gdb_stop}
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_stop_idle_callback
# ------------------------------------------------------------------
# This callback normally does nothing. When the stop button has
# been pressed, though, and gdb has successfully stopped the target,
# this callback will clean up after gdbtk_stop, removing the "Detach"
# dialog (if it's open) and gettingg rid of any outstanding timers
# and hooks.
proc gdbtk_stop_idle_callback {} {
global _gdbtk_stop gdbtk_state
# Check if the dialog asking if user wants to detach is open
# and unpost it if it exists.
if {$_gdbtk_stop(msg) != ""} {
set ans [list answer $_gdbtk_stop(msg)]
set gdbtk_state($ans) no
}
if {$_gdbtk_stop(timer) != ""} {
# Cancel the timer callback
after cancel $_gdbtk_stop(timer)
set _gdbtk_stop(timer) ""
catch {remove_hook gdb_idle_hook gdbtk_stop_idle_callback}
}
}
# ------------------------------------------------------------------
# PROC: gdbtk_detach
# ------------------------------------------------------------------
# This proc is installed as a timer event when the stop button
# is pressed. If target_wait doesn't return (we were unable to stop
# the target), then this proc is called.
#
# Open a dialog box asking if the user would like to detach. If so,
# try to detach. If not, do nothing and go away.
proc gdbtk_detach {} {
global _gdbtk_stop
set _gdbtk_stop(msg) "No response from target. Detach from target\n(and stop debugging it)?"
if {[gdbtk_tcl_query $_gdbtk_stop(msg) no]} {
catch {gdb_stop detach}
}
set _gdbtk_stop(timer) ""
set _gdbtk_stop(msg) ""
remove_hook gdb_idle_hook gdbtk_stop_idle_callback
}
# ------------------------------------------------------------------
# PROC: gdbtk_run
# ------------------------------------------------------------------
proc gdbtk_run {} {
run_executable
}
# ------------------------------------------------------------------
# PROC: gdbtk_attach_native: attach to a running target
# ------------------------------------------------------------------
proc gdbtk_attach_native {} {
ManagedWin::open_dlg AttachDlg ;#-transient
debug "ManagedWin got [AttachDlg::last_button] [AttachDlg::pid]"
if {[AttachDlg::last_button]} {
set pid [AttachDlg::pid]
set symbol_file [AttachDlg::symbol_file]
if {![_open_file $symbol_file]} {
ManagedWin::open WarningDlg -transient \
-message "Could not load symbols from $symbol_file."
return
}
if {[catch {gdb_cmd "attach $pid"} result]} {
ManagedWin::open WarningDlg -transient \
-message [list "Could not attach to $pid:\n$result"]
return
}
}
}
# ------------------------------------------------------------------
# PROC: set_baud - Tell GDB the baud rate.
# ------------------------------------------------------------------
proc set_baud {} {
global gdb_target_name
#set target [ide_property get target-internal-name]
set baud [pref getd gdb/load/${gdb_target_name}-baud]
if {$baud == ""} {
set baud [pref get gdb/load/baud]
}
# debug "setting baud to $baud"
catch {gdb_cmd "set remotebaud $baud"}
}
# ------------------------------------------------------------------
# PROC: do_state_hook -
# ------------------------------------------------------------------
proc do_state_hook {varname ind op} {
run_hooks state_hook $varname
}
# ------------------------------------------------------------------
# PROC: gdbtk_disconnect -
# ------------------------------------------------------------------
proc gdbtk_disconnect {{async 0}} {
global gdb_loaded gdb_target_changed
catch {gdb_cmd "detach"}
# force a new target command to do something
set gdb_loaded 0
set gdb_target_changed 1
set gdb_running 0
gdbtk_idle
gdbtk_update
}
# ------------------------------------------------------------------
# PROC: tstart -
# ------------------------------------------------------------------
proc tstart {} {
if {[catch {gdb_cmd "tstart"} errTxt]} {
tk_messageBox -title "Error" -message $errTxt -icon error \
-type ok
gdbtk_idle
return 0
}
return 1
}
# ------------------------------------------------------------------
# PROC: tstop -
# ------------------------------------------------------------------
proc tstop {} {
if {[catch {gdb_cmd "tstop"} errTxt]} {
tk_messageBox -title "Error" -message $errTxt -icon error \
-type ok
gdbtk_idle
return 0
}
return 1
}
# ------------------------------------------------------------------
# PROC: source_file -
# ------------------------------------------------------------------
proc source_file {} {
set file_name [tk_getOpenFile -title "Choose GDB Command file"]
if {$file_name != ""} {
gdb_cmd "source $file_name"
}
}
# -----------------------------------------------------------------------------
# NAME: gdbtk_signal
#
# SYNOPSIS: gdbtk_signal {name longname}
#
# DESC: This procedure is called from GDB when a signal
# is generated, for example, a SIGSEGV.
#
# ARGS: name - The name of the signal, as returned by
# target_signal_to_name().
# longname - A description of the signal.
# -----------------------------------------------------------------------------
proc gdbtk_signal {name {longname ""}} {
dbug W "caught signal $name $longname"
set longname
set message "Program received signal $name, $longname"
set srcs [ManagedWin::find SrcWin]
foreach w $srcs {
$w set_status $message
}
gdbtk_tcl_ignorable_warning signal $message
update idletasks
}
# Hook for clearing out executable state. Widgets should register a callback
# for this hook if they have anything that may need cleaning if the user
# requests to re-load an executable.
define_hook gdb_clear_file_hook
# -----------------------------------------------------------------------------
# NAME: gdbtk_clear_file
#
# SYNOPSIS: gdbtk_clear_file
#
# DESC: This procedure is called when the user requests a new exec
# file load. It runs the gdb_clear_file_hook, which tells
# all widgets to clear state. It CANNOT call gdb_clear_file,
# since this hook runs AFTER we load a new exec file (i.e.,
# gdb_clear_file would clear the file name).
#
# ARGS: none
# -----------------------------------------------------------------------------
proc gdbtk_clear_file {} {
global gdb_target_name
debug
# Give widgets a chance to clean up
run_hooks gdb_clear_file_hook
# Save the target name in case the user has already selected a
# target. No need to force the user to select it again.
set old_target $gdb_target_name
# Finally, reset our state
initialize_gdbtk
set gdb_target_name $old_target
}
# ------------------------------------------------------------------
# PROC: intialize_gdbtk - (re)initialize gdbtk's state
# ------------------------------------------------------------------
proc initialize_gdbtk {} {
global gdb_exe_changed gdb_target_changed gdb_running gdb_downloading \
gdb_loaded gdb_program_has_run file_done gdb_pretty_name gdb_exec \
gdb_target_cmd download_dialog gdb_pretty_name gdb_exe_name _gdbtk_stop \
gdb_target_name gdb_target_changed gdbtk_state gdb_kod_cmd gdb_shutting_down
# initialize state variables
set gdb_exe_changed 0
set gdb_target_changed 0
set gdb_running 0
set gdb_downloading 0
set gdb_loaded 0
set gdb_program_has_run 0
set file_done 0
set gdb_pretty_name {}
set gdb_exec {}
set gdb_target_cmd ""
set gdb_running 0
set gdb_shutting_down 0
set download_dialog ""
# gdb_pretty_name is the name of the GDB target as it should be
# displayed to the user.
set gdb_pretty_name ""
# gdb_exe_name is the name of the executable we are debugging.
set gdb_exe_name ""
# Initialize readline
if {![info exists gdbtk_state(readline)]} {
# Only do this once...
set gdbtk_state(readline) 0
set gdbtk_state(console) ""
}
# check for existence of a kod command and get it's name and
# text for menu entry
set gdb_kod_cmd ""
set msg ""
if {![catch {gdb_cmd "show os"} msg] && ($msg != "")} {
set line1 [string range $msg 0 [expr [string first \n $msg] -1]]
if {[regexp -- \"(.*)\" $line1 dummy cmd]} {
set gdb_kod_cmd $cmd
}
}
# debug "kod_cmd=$gdb_kod_cmd"
# setup stop button
set _gdbtk_stop(timer) ""
set _gdbtk_stop(msg) ""
# gdb_target_name is the name of the GDB target; that is, the argument
# to the GDB target command.
set gdb_target_name ""
# By setting gdb_target_changed, we force a target dialog
# to be displayed on the first "run"
set gdb_target_changed 1
}
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