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|
# GDB GUI setup
set cfile Blank
set wins($cfile) .text
set current_label {}
set screen_height 0
set screen_top 0
set screen_bot 0
set current_output_win .command.text
set cfunc NIL
option add *Foreground White
option add *Background Blue
proc echo string {puts stdout $string}
if [info exists env(EDITOR)] then {
set editor $env(EDITOR)
} else {
set editor emacs
}
# GDB callbacks
#
# These functions are called by GDB (from C code) to do various things in
# TK-land. All start with the prefix `gdbtk_tcl_' to make them easy to find.
#
#
# GDB Callback:
#
# gdbtk_tcl_fputs (text) - Output text to the command window
#
# Description:
#
# GDB calls this to output TEXT to the GDB command window. The text is
# placed at the end of the text widget. Note that output may not occur,
# due to buffering. Use gdbtk_tcl_flush to cause an immediate update.
#
proc gdbtk_tcl_fputs {arg} {
global current_output_win
$current_output_win insert end "$arg"
$current_output_win yview -pickplace end
}
#
# GDB Callback:
#
# gdbtk_tcl_flush () - Flush output to the command window
#
# Description:
#
# GDB calls this to force all buffered text to the GDB command window.
#
proc gdbtk_tcl_flush {} {
$current_output_win yview -pickplace end
update idletasks
}
#
# GDB Callback:
#
# gdbtk_tcl_query (message) - Create a yes/no query dialog box
#
# Description:
#
# GDB calls this to create a yes/no dialog box containing MESSAGE. GDB
# is hung while the dialog box is active (ie: no commands will work),
# however windows can still be refreshed in case of damage or exposure.
#
proc gdbtk_tcl_query {message} {
tk_dialog .query "gdb : query" "$message" {} 1 "No" "Yes"
}
#
# GDB Callback:
#
# gdbtk_start_variable_annotation (args ...) -
#
# Description:
#
# Not yet implemented.
#
proc gdbtk_tcl_start_variable_annotation {valaddr ref_type stor_cl cum_expr field type_cast} {
echo "gdbtk_tcl_start_variable_annotation $valaddr $ref_type $stor_cl $cum_expr $field $type_cast"
}
#
# GDB Callback:
#
# gdbtk_end_variable_annotation (args ...) -
#
# Description:
#
# Not yet implemented.
#
proc gdbtk_tcl_end_variable_annotation {} {
echo gdbtk_tcl_end_variable_annotation
}
#
# GDB Callback:
#
# gdbtk_tcl_breakpoint (action bpnum file line) - Notify the TK
# interface of changes to breakpoints.
#
# Description:
#
# GDB calls this to notify TK of changes to breakpoints. ACTION is one
# of:
# create - Notify of breakpoint creation
# delete - Notify of breakpoint deletion
# enable - Notify of breakpoint enabling
# disable - Notify of breakpoint disabling
#
# All actions take the same set of arguments: BPNUM is the breakpoint
# number, FILE is the source file and LINE is the line number, and PC is
# the pc of the affected breakpoint.
#
proc gdbtk_tcl_breakpoint {action bpnum file line pc} {
${action}_breakpoint $bpnum $file $line $pc
}
proc asm_win_name {funcname} {
regsub -all {\.} $funcname _ temp
return .asm.func_${temp}
}
#
# Local procedure:
#
# create_breakpoint (bpnum file line pc) - Record breakpoint info in TK land
#
# Description:
#
# GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK
# land of breakpoint creation. This consists of recording the file and
# line number in the breakpoint_file and breakpoint_line arrays. Also,
# if there is already a window associated with FILE, it is updated with
# a breakpoint tag.
#
proc create_breakpoint {bpnum file line pc} {
global wins
global breakpoint_file
global breakpoint_line
global pos_to_breakpoint
global pos_to_bpcount
global cfunc
global pclist
# Record breakpoint locations
set breakpoint_file($bpnum) $file
set breakpoint_line($bpnum) $line
set pos_to_breakpoint($file:$line) $bpnum
if ![info exists pos_to_bpcount($file:$line)] {
set pos_to_bpcount($file:$line) 0
}
incr pos_to_bpcount($file:$line)
set pos_to_breakpoint($pc) $bpnum
if ![info exists pos_to_bpcount($pc)] {
set pos_to_bpcount($pc) 0
}
incr pos_to_bpcount($pc)
# If there's a window for this file, update it
if [info exists wins($file)] {
insert_breakpoint_tag $wins($file) $line
}
# If there's an assembly window, update that too
set win [asm_win_name $cfunc]
if [winfo exists $win] {
insert_breakpoint_tag $win [pc_to_line $pclist($cfunc) $pc]
}
}
#
# Local procedure:
#
# delete_breakpoint (bpnum file line pc) - Delete breakpoint info from TK land
#
# Description:
#
# GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK
# land of breakpoint destruction. This consists of removing the file and
# line number from the breakpoint_file and breakpoint_line arrays. Also,
# if there is already a window associated with FILE, the tags are removed
# from it.
#
proc delete_breakpoint {bpnum file line pc} {
global wins
global breakpoint_file
global breakpoint_line
global pos_to_breakpoint
global pos_to_bpcount
global cfunc pclist
# Save line number and file for later
set line $breakpoint_line($bpnum)
set file $breakpoint_file($bpnum)
# Reset breakpoint annotation info
if {$pos_to_bpcount($file:$line) > 0} {
decr pos_to_bpcount($file:$line)
if {$pos_to_bpcount($file:$line) == 0} {
catch "unset pos_to_breakpoint($file:$line)"
unset breakpoint_file($bpnum)
unset breakpoint_line($bpnum)
# If there's a window for this file, update it
if [info exists wins($file)] {
delete_breakpoint_tag $wins($file) $line
}
}
}
# If there's an assembly window, update that too
if {$pos_to_bpcount($pc) > 0} {
decr pos_to_bpcount($pc)
if {$pos_to_bpcount($pc) == 0} {
catch "unset pos_to_breakpoint($pc)"
set win [asm_win_name $cfunc]
if [winfo exists $win] {
delete_breakpoint_tag $win [pc_to_line $pclist($cfunc) $pc]
}
}
}
}
#
# Local procedure:
#
# enable_breakpoint (bpnum file line pc) - Record breakpoint info in TK land
#
# Description:
#
# GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK
# land of a breakpoint being enabled. This consists of unstippling the
# specified breakpoint indicator.
#
proc enable_breakpoint {bpnum file line pc} {
global wins
global cfunc pclist
if [info exists wins($file)] {
$wins($file) tag configure $line -fgstipple {}
}
# If there's an assembly window, update that too
set win [asm_win_name $cfunc]
if [winfo exists $win] {
$win tag configure [pc_to_line $pclist($cfunc) $pc] -fgstipple {}
}
}
#
# Local procedure:
#
# disable_breakpoint (bpnum file line pc) - Record breakpoint info in TK land
#
# Description:
#
# GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK
# land of a breakpoint being disabled. This consists of stippling the
# specified breakpoint indicator.
#
proc disable_breakpoint {bpnum file line pc} {
global wins
global cfunc pclist
if [info exists wins($file)] {
$wins($file) tag configure $line -fgstipple gray50
}
# If there's an assembly window, update that too
set win [asm_win_name $cfunc]
if [winfo exists $win] {
$win tag configure [pc_to_line $pclist($cfunc) $pc] -fgstipple gray50
}
}
#
# Local procedure:
#
# insert_breakpoint_tag (win line) - Insert a breakpoint tag in WIN.
#
# Description:
#
# GDB calls this indirectly (through gdbtk_tcl_breakpoint) to insert a
# breakpoint tag into window WIN at line LINE.
#
proc insert_breakpoint_tag {win line} {
$win configure -state normal
$win delete $line.0
$win insert $line.0 "B"
$win tag add $line $line.0
$win tag add delete $line.0 "$line.0 lineend"
$win tag add margin $line.0 "$line.0 lineend"
$win configure -state disabled
}
#
# Local procedure:
#
# delete_breakpoint_tag (win line) - Remove a breakpoint tag from WIN.
#
# Description:
#
# GDB calls this indirectly (through gdbtk_tcl_breakpoint) to remove a
# breakpoint tag from window WIN at line LINE.
#
proc delete_breakpoint_tag {win line} {
$win configure -state normal
$win delete $line.0
$win insert $line.0 " "
$win tag delete $line
$win tag add delete $line.0 "$line.0 lineend"
$win tag add margin $line.0 "$line.0 lineend"
$win configure -state disabled
}
proc gdbtk_tcl_busy {} {
.start configure -state disabled
.stop configure -state normal
.step configure -state disabled
.next configure -state disabled
.continue configure -state disabled
.finish configure -state disabled
.quit configure -state disabled
.up configure -state disabled
.down configure -state disabled
.bottom configure -state disabled
.asm_but configure -state disabled
.registers configure -state disabled
.asm.stepi configure -state disabled
.asm.nexti configure -state disabled
.asm.continue configure -state disabled
.asm.finish configure -state disabled
.asm.up configure -state disabled
.asm.down configure -state disabled
.asm.bottom configure -state disabled
.asm.close configure -state disabled
}
proc gdbtk_tcl_idle {} {
.start configure -state normal
.stop configure -state disabled
.step configure -state normal
.next configure -state normal
.continue configure -state normal
.finish configure -state normal
.quit configure -state normal
.up configure -state normal
.down configure -state normal
.bottom configure -state normal
.asm_but configure -state normal
.registers configure -state normal
.asm.stepi configure -state normal
.asm.nexti configure -state normal
.asm.continue configure -state normal
.asm.finish configure -state normal
.asm.up configure -state normal
.asm.down configure -state normal
.asm.bottom configure -state normal
.asm.close configure -state normal
}
#
# Local procedure:
#
# decr (var val) - compliment to incr
#
# Description:
#
#
proc decr {var {val 1}} {
upvar $var num
set num [expr $num - $val]
return $num
}
#
# Local procedure:
#
# pc_to_line (pclist pc) - convert PC to a line number.
#
# Description:
#
# Convert PC to a line number from PCLIST. If exact line isn't found,
# we return the first line that starts before PC.
#
proc pc_to_line {pclist pc} {
set line [lsearch -exact $pclist $pc]
if {$line >= 1} { return $line }
set line 1
foreach linepc [lrange $pclist 1 end] {
if {$pc < $linepc} { decr line ; return $line }
incr line
}
return [expr $line - 1]
}
#
# Menu:
#
# file popup menu - Define the file popup menu.
#
# Description:
#
# This menu just contains a bunch of buttons that do various things to
# the line under the cursor.
#
# Items:
#
# Edit - Run the editor (specified by the environment variable EDITOR) on
# this file, at the current line.
# Breakpoint - Set a breakpoint at the current line. This just shoves
# a `break' command at GDB with the appropriate file and line
# number. Eventually, GDB calls us back (at gdbtk_tcl_breakpoint)
# to notify us of where the breakpoint needs to show up.
#
menu .file_popup -cursor hand2
.file_popup add command -label "Not yet set" -state disabled
.file_popup add separator
.file_popup add command -label "Edit" -command {exec $editor +$selected_line $selected_file &}
.file_popup add command -label "Set breakpoint" -command {gdb_cmd "break $selected_file:$selected_line"}
#
# Bindings:
#
# file popup menu - Define the file popup menu bindings.
#
# Description:
#
# This defines the binding for the file popup menu. Currently, there is
# only one, which is activated when Button-1 is released. This causes
# the menu to be unposted, releases the grab for the menu, and then
# unhighlights the line under the cursor. After that, the selected menu
# item is invoked.
#
bind .file_popup <Any-ButtonRelease-1> {
global selected_win
# First, remove the menu, and release the pointer
.file_popup unpost
grab release .file_popup
# Unhighlight the selected line
$selected_win tag delete breaktag
# Actually invoke the menubutton here!
tk_invokeMenu %W
}
#
# Local procedure:
#
# file_popup_menu (win x y xrel yrel) - Popup the file popup menu.
#
# Description:
#
# This procedure is invoked as a result of a command binding in the
# listing window. It does several things:
# o - It highlights the line under the cursor.
# o - It pops up the file popup menu which is intended to do
# various things to the aforementioned line.
# o - Grabs the mouse for the file popup menu.
#
# Button 1 has been pressed in a listing window. Pop up a menu.
proc file_popup_menu {win x y xrel yrel} {
global wins
global win_to_file
global file_to_debug_file
global highlight
global selected_line
global selected_file
global selected_win
# Map TK window name back to file name.
set file $win_to_file($win)
set pos [$win index @$xrel,$yrel]
# Record selected file and line for menu button actions
set selected_file $file_to_debug_file($file)
set selected_line [lindex [split $pos .] 0]
set selected_win $win
# Highlight the selected line
eval $win tag config breaktag $highlight
$win tag add breaktag "$pos linestart" "$pos linestart + 1l"
# Post the menu near the pointer, (and grab it)
.file_popup entryconfigure 0 -label "$selected_file:$selected_line"
.file_popup post [expr $x-[winfo width .file_popup]/2] [expr $y-10]
grab .file_popup
}
#
# Local procedure:
#
# listing_window_button_1 (win x y xrel yrel) - Handle button 1 in listing window
#
# Description:
#
# This procedure is invoked as a result of holding down button 1 in the
# listing window. The action taken depends upon where the button was
# pressed. If it was in the left margin (the breakpoint column), it
# sets or clears a breakpoint. In the main text area, it will pop up a
# menu.
#
proc listing_window_button_1 {win x y xrel yrel} {
global wins
global win_to_file
global file_to_debug_file
global highlight
global selected_line
global selected_file
global selected_win
global pos_to_breakpoint
# Map TK window name back to file name.
set file $win_to_file($win)
set pos [split [$win index @$xrel,$yrel] .]
# Record selected file and line for menu button actions
set selected_file $file_to_debug_file($file)
set selected_line [lindex $pos 0]
set selected_col [lindex $pos 1]
set selected_win $win
# If we're in the margin, then toggle the breakpoint
if {$selected_col < 8} {
set pos_break $selected_file:$selected_line
set pos $file:$selected_line
set tmp pos_to_breakpoint($pos)
if [info exists $tmp] {
set bpnum [set $tmp]
gdb_cmd "delete $bpnum"
} else {
gdb_cmd "break $pos_break"
}
return
}
# Post the menu near the pointer, (and grab it)
.file_popup entryconfigure 0 -label "$selected_file:$selected_line"
.file_popup post [expr $x-[winfo width .file_popup]/2] [expr $y-10]
grab .file_popup
}
#
# Local procedure:
#
# asm_window_button_1 (win x y xrel yrel) - Handle button 1 in asm window
#
# Description:
#
# This procedure is invoked as a result of holding down button 1 in the
# assembly window. The action taken depends upon where the button was
# pressed. If it was in the left margin (the breakpoint column), it
# sets or clears a breakpoint. In the main text area, it will pop up a
# menu.
#
proc asm_window_button_1 {win x y xrel yrel} {
global wins
global win_to_file
global file_to_debug_file
global highlight
global selected_line
global selected_file
global selected_win
global pos_to_breakpoint
global pclist
global cfunc
set pos [split [$win index @$xrel,$yrel] .]
# Record selected file and line for menu button actions
set selected_line [lindex $pos 0]
set selected_col [lindex $pos 1]
set selected_win $win
# Figure out the PC
set pc [lindex $pclist($cfunc) $selected_line]
# If we're in the margin, then toggle the breakpoint
if {$selected_col < 8} {
set tmp pos_to_breakpoint($pc)
if [info exists $tmp] {
set bpnum [set $tmp]
gdb_cmd "delete $bpnum"
} else {
gdb_cmd "break *$pc"
}
return
}
# Post the menu near the pointer, (and grab it)
# .file_popup entryconfigure 0 -label "$selected_file:$selected_line"
# .file_popup post [expr $x-[winfo width .file_popup]/2] [expr $y-10]
# grab .file_popup
}
#
# Local procedure:
#
# do_nothing - Does absoultely nothing.
#
# Description:
#
# This procedure does nothing. It is used as a placeholder to allow
# the disabling of bindings that would normally be inherited from the
# parent widget. I can't think of any other way to do this.
#
proc do_nothing {} {}
#
# Local procedure:
#
# create_expr_win - Creat expression display window
#
# Description:
#
# Create the expression display window.
#
proc create_expr_win {} {
toplevel .expr
wm minsize .expr 1 1
wm title .expr Expression
canvas .expr.c -yscrollcommand {.expr.scroll set} -cursor hand2 \
-borderwidth 2 -relief groove
scrollbar .expr.scroll -orient vertical -command {.expr.c yview}
entry .expr.entry -borderwidth 2 -relief groove
pack .expr.entry -side bottom -fill x
pack .expr.c -side left -fill both -expand yes
pack .expr.scroll -side right -fill y
.expr.c create text 100 0 -text "Text string"
.expr.c create rectangle 245 195 255 205 -outline black -fill white
}
#
# Local procedure:
#
# display_expression (expression) - Display EXPRESSION in display window
#
# Description:
#
# Display EXPRESSION and it's value in the expression display window.
#
proc display_expression {expression} {
if ![winfo exists .expr] {create_expr_win}
}
#
# Local procedure:
#
# create_file_win (filename) - Create a win for FILENAME.
#
# Return value:
#
# The new text widget.
#
# Description:
#
# This procedure creates a text widget for FILENAME. It returns the
# newly created widget. First, a text widget is created, and given basic
# configuration info. Second, all the bindings are setup. Third, the
# file FILENAME is read into the text widget. Fourth, margins and line
# numbers are added.
#
proc create_file_win {filename} {
global breakpoint_file
global breakpoint_line
# Replace all the dirty characters in $filename with clean ones, and generate
# a unique name for the text widget.
regsub -all {\.|/} $filename {} temp
set win .text$temp
# Open the file, and read it into the text widget
if [catch "open $filename" fh] {
# File can't be read. Put error message into .nofile window and return.
catch {destroy .nofile}
text .nofile -height 25 -width 80 -relief raised -borderwidth 2 -yscrollcommand textscrollproc -setgrid true -cursor hand2
.nofile insert 0.0 $fh
.nofile configure -state disabled
bind .nofile <1> do_nothing
bind .nofile <B1-Motion> do_nothing
return .nofile
}
# Actually create and do basic configuration on the text widget.
text $win -height 25 -width 80 -relief raised -borderwidth 2 -yscrollcommand textscrollproc -setgrid true -cursor hand2
# Setup all the bindings
bind $win <Enter> {focus %W}
# bind $win <1> {listing_window_button_1 %W %X %Y %x %y}
bind $win <1> do_nothing
bind $win <B1-Motion> do_nothing
bind $win n {gdb_cmd next ; update_ptr}
bind $win s {gdb_cmd step ; update_ptr}
bind $win c {gdb_cmd continue ; update_ptr}
bind $win f {gdb_cmd finish ; update_ptr}
bind $win u {gdb_cmd up ; update_ptr}
bind $win d {gdb_cmd down ; update_ptr}
$win delete 0.0 end
$win insert 0.0 [read $fh]
close $fh
# Add margins (for annotations) and a line number to each line
set numlines [$win index end]
set numlines [lindex [split $numlines .] 0]
for {set i 1} {$i <= $numlines} {incr i} {
$win insert $i.0 [format " %4d " $i]
$win tag add margin $i.0 $i.8
$win tag add source $i.8 "$i.0 lineend"
}
$win tag bind margin <1> {listing_window_button_1 %W %X %Y %x %y}
$win tag bind source <1> {
%W mark set anchor "@%x,%y wordstart"
set last [%W index "@%x,%y wordend"]
%W tag remove sel 0.0 anchor
%W tag remove sel $last end
%W tag add sel anchor $last
}
# $win tag bind source <Double-Button-1> {
# %W mark set anchor "@%x,%y wordstart"
# set last [%W index "@%x,%y wordend"]
# %W tag remove sel 0.0 anchor
# %W tag remove sel $last end
# %W tag add sel anchor $last
# echo "Selected [selection get]"
# }
$win tag bind source <B1-Motion> {
%W tag remove sel 0.0 anchor
%W tag remove sel $last end
%W tag add sel anchor @%x,%y
}
$win tag bind sel <1> do_nothing
$win tag bind sel <Double-Button-1> {display_expression [selection get]}
$win tag raise sel
# Scan though the breakpoint data base and install any destined for this file
foreach bpnum [array names breakpoint_file] {
if {$breakpoint_file($bpnum) == $filename} {
insert_breakpoint_tag $win $breakpoint_line($bpnum)
}
}
# Disable the text widget to prevent user modifications
$win configure -state disabled
return $win
}
#
# Local procedure:
#
# create_asm_win (funcname pc) - Create an assembly win for FUNCNAME.
#
# Return value:
#
# The new text widget.
#
# Description:
#
# This procedure creates a text widget for FUNCNAME. It returns the
# newly created widget. First, a text widget is created, and given basic
# configuration info. Second, all the bindings are setup. Third, the
# function FUNCNAME is read into the text widget.
#
proc create_asm_win {funcname pc} {
global breakpoint_file
global breakpoint_line
global current_output_win
global pclist
# Replace all the dirty characters in $filename with clean ones, and generate
# a unique name for the text widget.
set win [asm_win_name $funcname]
# Actually create and do basic configuration on the text widget.
text $win -height 25 -width 80 -relief raised -borderwidth 2 \
-setgrid true -cursor hand2 -yscrollcommand asmscrollproc
# Setup all the bindings
bind $win <Enter> {focus %W}
bind $win <1> {asm_window_button_1 %W %X %Y %x %y}
bind $win <B1-Motion> do_nothing
bind $win n {gdb_cmd nexti ; update_ptr}
bind $win s {gdb_cmd stepi ; update_ptr}
bind $win c {gdb_cmd continue ; update_ptr}
bind $win f {gdb_cmd finish ; update_ptr}
bind $win u {gdb_cmd up ; update_ptr}
bind $win d {gdb_cmd down ; update_ptr}
# Disassemble the code, and read it into the new text widget
set current_output_win $win
gdb_cmd "disassemble $pc"
set current_output_win .command.text
set numlines [$win index end]
set numlines [lindex [split $numlines .] 0]
decr numlines
# Delete the first and last lines, cuz these contain useless info
$win delete 1.0 2.0
$win delete {end - 1 lines} end
decr numlines 2
# Add margins (for annotations) and note the PC for each line
catch "unset pclist($funcname)"
lappend pclist($funcname) Unused
for {set i 1} {$i <= $numlines} {incr i} {
scan [$win get $i.0 "$i.0 lineend"] "%s " pc
lappend pclist($funcname) $pc
$win insert $i.0 " "
}
# Scan though the breakpoint data base and install any destined for this file
# foreach bpnum [array names breakpoint_file] {
# if {$breakpoint_file($bpnum) == $filename} {
# insert_breakpoint_tag $win $breakpoint_line($bpnum)
# }
# }
# Disable the text widget to prevent user modifications
$win configure -state disabled
return $win
}
#
# Local procedure:
#
# asmscrollproc (WINHEIGHT SCREENHEIGHT SCREENTOP SCREENBOT) - Update the
# asm window scrollbar.
#
# Description:
#
# This procedure is called to update the assembler window's scrollbar.
#
proc asmscrollproc {args} {
global asm_screen_height asm_screen_top asm_screen_bot
eval ".asm.scroll set $args"
set asm_screen_height [lindex $args 1]
set asm_screen_top [lindex $args 2]
set asm_screen_bot [lindex $args 3]
}
#
# Local procedure:
#
# update_listing (linespec) - Update the listing window according to
# LINESPEC.
#
# Description:
#
# This procedure is called from various places to update the listing
# window based on LINESPEC. It is usually invoked with the result of
# gdb_loc.
#
# It will move the cursor, and scroll the text widget if necessary.
# Also, it will switch to another text widget if necessary, and update
# the label widget too.
#
# LINESPEC is a list of the form:
#
# { DEBUG_FILE FUNCNAME FILENAME LINE }, where:
#
# DEBUG_FILE - is the abbreviated form of the file name. This is usually
# the file name string given to the cc command. This is
# primarily needed for breakpoint commands, and when an
# abbreviated for of the filename is desired.
# FUNCNAME - is the name of the function.
# FILENAME - is the fully qualified (absolute) file name. It is usually
# the same as $PWD/$DEBUG_FILE, where PWD is the working dir
# at the time the cc command was given. This is used to
# actually locate the file to be displayed.
# LINE - The line number to be displayed.
#
# Usually, this procedure will just move the cursor one line down to the
# next line to be executed. However, if the cursor moves out of range
# or into another file, it will scroll the text widget so that the line
# of interest is in the middle of the viewable portion of the widget.
#
proc update_listing {linespec} {
global pointers
global screen_height
global screen_top
global screen_bot
global wins cfile
global current_label
global win_to_file
global file_to_debug_file
# Rip the linespec apart
set line [lindex $linespec 3]
set filename [lindex $linespec 2]
set funcname [lindex $linespec 1]
set debug_file [lindex $linespec 0]
# Sometimes there's no source file for this location
if {$filename == ""} {set filename Blank}
# If we want to switch files, we need to unpack the current text widget, and
# stick in the new one.
if {$filename != $cfile} then {
pack forget $wins($cfile)
set cfile $filename
# Create a text widget for this file if necessary
if ![info exists wins($cfile)] then {
set wins($cfile) [create_file_win $cfile]
if {$wins($cfile) != ".nofile"} {
set win_to_file($wins($cfile)) $cfile
set file_to_debug_file($cfile) $debug_file
set pointers($cfile) 1.1
}
}
# Pack the text widget into the listing widget, and scroll to the right place
pack $wins($cfile) -side left -expand yes -in .listing -fill both -after .label
$wins($cfile) yview [expr $line - $screen_height / 2]
}
# Update the label widget in case the filename or function name has changed
if {$current_label != "$filename.$funcname"} then {
set tail [expr [string last / $filename] + 1]
.label configure -text "[string range $filename $tail end] : ${funcname}()"
set current_label $filename.$funcname
}
# Update the pointer, scrolling the text widget if necessary to keep the
# pointer in an acceptable part of the screen.
if [info exists pointers($cfile)] then {
$wins($cfile) configure -state normal
set pointer_pos $pointers($cfile)
$wins($cfile) configure -state normal
$wins($cfile) delete $pointer_pos
$wins($cfile) insert $pointer_pos " "
set pointer_pos [$wins($cfile) index $line.1]
set pointers($cfile) $pointer_pos
$wins($cfile) delete $pointer_pos
$wins($cfile) insert $pointer_pos "\xbb"
if {$line < $screen_top + 1
|| $line > $screen_bot} then {
$wins($cfile) yview [expr $line - $screen_height / 2]
}
$wins($cfile) configure -state disabled
}
}
#
# Local procedure:
#
# update_ptr - Update the listing window.
#
# Description:
#
# This routine will update the listing window using the result of
# gdb_loc.
#
proc update_ptr {} {update_listing [gdb_loc]}
#
# Local procedure:
#
# asm_command - Open up the assembly window.
#
# Description:
#
# Create an assembly window if it doesn't exist.
#
proc asm_command {} {
global cfunc
if ![winfo exists .asm] {
set cfunc *None*
set win [asm_win_name $cfunc]
toplevel .asm
wm minsize .asm 1 1
wm title .asm Assembly
label .asm.label -text "*NIL*" -borderwidth 2 -relief raised
text $win -height 25 -width 80 -relief raised -borderwidth 2 \
-setgrid true -cursor hand2 \
-yscrollcommand asmscrollproc
scrollbar .asm.scroll -orient vertical \
-command {[asm_win_name $cfunc] yview}
frame .asm.buts
button .asm.stepi -text Stepi \
-command {gdb_cmd stepi ; update_ptr}
button .asm.nexti -text Nexti \
-command {gdb_cmd nexti ; update_ptr}
button .asm.continue -text Continue \
-command {gdb_cmd continue ; update_ptr}
button .asm.finish -text Finish \
-command {gdb_cmd finish ; update_ptr}
button .asm.up -text Up -command {gdb_cmd up ; update_ptr}
button .asm.down -text Down \
-command {gdb_cmd down ; update_ptr}
button .asm.bottom -text Bottom \
-command {gdb_cmd {frame 0} ; update_ptr}
button .asm.close -text Close -command {destroy .asm}
pack .asm.label -side top -fill x
pack .asm.stepi .asm.nexti .asm.continue .asm.finish .asm.up \
.asm.down .asm.bottom .asm.close -side left -in .asm.buts
pack .asm.buts -side top -fill x
pack $win -side left -expand yes -fill both
pack .asm.scroll -side left -fill y
update
}
}
#
# Local procedure:
#
# registers_command - Open up the register display window.
#
# Description:
#
# Create the register display window, with automatic updates.
#
proc registers_command {} {
global cfunc
if ![winfo exists .reg] {
toplevel .reg
wm minsize .reg 1 1
wm title .reg Registers
set win .reg.regs
text $win -height 41 -width 45 -relief raised \
-borderwidth 2 \
-setgrid true -cursor hand2
pack $win -side left -expand yes -fill both
} else {
destroy .reg
}
}
#
# Local procedure:
#
# update_registers - Update the registers window.
#
# Description:
#
# This procedure updates the registers window.
#
proc update_registers {} {
global current_output_win
set win .reg.regs
$win configure -state normal
$win delete 0.0 end
set current_output_win $win
gdb_cmd "info registers"
set current_output_win .command.text
$win yview 0
$win configure -state disabled
}
#
# Local procedure:
#
# update_assembly - Update the assembly window.
#
# Description:
#
# This procedure updates the assembly window.
#
proc update_assembly {linespec} {
global asm_pointers
global screen_height
global screen_top
global screen_bot
global wins cfunc
global current_label
global win_to_file
global file_to_debug_file
global current_asm_label
global pclist
global asm_screen_height asm_screen_top asm_screen_bot
# Rip the linespec apart
set pc [lindex $linespec 4]
set line [lindex $linespec 3]
set filename [lindex $linespec 2]
set funcname [lindex $linespec 1]
set debug_file [lindex $linespec 0]
set win [asm_win_name $cfunc]
# Sometimes there's no source file for this location
if {$filename == ""} {set filename Blank}
# If we want to switch funcs, we need to unpack the current text widget, and
# stick in the new one.
if {$funcname != $cfunc } {
pack forget $win
set cfunc $funcname
set win [asm_win_name $cfunc]
# Create a text widget for this func if necessary
if {![winfo exists $win]} {
create_asm_win $cfunc $pc
set asm_pointers($cfunc) 1.1
set current_asm_label NIL
}
# Pack the text widget, and scroll to the right place
pack $win -side left -expand yes -fill both \
-after .asm.buts
set line [pc_to_line $pclist($cfunc) $pc]
$win yview [expr $line - $asm_screen_height / 2]
}
# Update the label widget in case the filename or function name has changed
if {$current_asm_label != "$pc $funcname"} then {
.asm.label configure -text "$pc $funcname"
set current_asm_label "$pc $funcname"
}
# Update the pointer, scrolling the text widget if necessary to keep the
# pointer in an acceptable part of the screen.
if [info exists asm_pointers($cfunc)] then {
$win configure -state normal
set pointer_pos $asm_pointers($cfunc)
$win configure -state normal
$win delete $pointer_pos
$win insert $pointer_pos " "
# Map the PC back to a line in the window
set line [pc_to_line $pclist($cfunc) $pc]
if {$line == -1} {
echo "Can't find PC $pc"
return
}
set pointer_pos [$win index $line.1]
set asm_pointers($cfunc) $pointer_pos
$win delete $pointer_pos
$win insert $pointer_pos "\xbb"
if {$line < $asm_screen_top + 1
|| $line > $asm_screen_bot} then {
$win yview [expr $line - $asm_screen_height / 2]
}
# echo "Picking line $line"
# $win yview -pickplace $line
$win configure -state disabled
}
}
proc update_ptr {} {
update_listing [gdb_loc]
if [winfo exists .asm] {
update_assembly [gdb_loc]
}
if [winfo exists .reg] {
update_registers
}
}
#
# Window:
#
# listing window - Define the listing window.
#
# Description:
#
#
# Setup listing window
frame .listing
wm minsize . 1 1
label .label -text "*No file*" -borderwidth 2 -relief raised
text $wins($cfile) -height 25 -width 80 -relief raised -borderwidth 2 -yscrollcommand textscrollproc -setgrid true -cursor hand2
scrollbar .scroll -orient vertical -command {$wins($cfile) yview}
if {[tk colormodel .text] == "color"} {
set highlight "-background red2 -borderwidth 2 -relief sunk"
} else {
set fg [lindex [.text config -foreground] 4]
set bg [lindex [.text config -background] 4]
set highlight "-foreground $bg -background $fg -borderwidth 0"
}
proc textscrollproc {args} {global screen_height screen_top screen_bot
eval ".scroll set $args"
set screen_height [lindex $args 1]
set screen_top [lindex $args 2]
set screen_bot [lindex $args 3]}
$wins($cfile) insert 0.0 " This page intentionally left blank."
$wins($cfile) configure -state disabled
pack .label -side bottom -fill x -in .listing
pack $wins($cfile) -side left -expand yes -in .listing -fill both
pack .scroll -side left -fill y -in .listing
button .start -text Start -command \
{gdb_cmd {break main}
gdb_cmd {enable delete $bpnum}
gdb_cmd run
update_ptr }
button .stop -text Stop -fg red -activeforeground red -state disabled -command gdb_stop
button .step -text Step -command {gdb_cmd step ; update_ptr}
button .next -text Next -command {gdb_cmd next ; update_ptr}
button .continue -text Continue -command {gdb_cmd continue ; update_ptr}
button .finish -text Finish -command {gdb_cmd finish ; update_ptr}
#button .test -text Test -command {echo [info var]}
button .quit -text Quit -command {gdb_cmd quit}
button .up -text Up -command {gdb_cmd up ; update_ptr}
button .down -text Down -command {gdb_cmd down ; update_ptr}
button .bottom -text Bottom -command {gdb_cmd {frame 0} ; update_ptr}
button .asm_but -text Asm -command {asm_command ; update_ptr}
button .registers -text Regs -command {registers_command ; update_ptr}
proc files_command {} {
toplevel .files_window
wm minsize .files_window 1 1
# wm overrideredirect .files_window true
listbox .files_window.list -geometry 30x20 -setgrid true
button .files_window.close -text Close -command {destroy .files_window}
tk_listboxSingleSelect .files_window.list
eval .files_window.list insert 0 [lsort [gdb_listfiles]]
pack .files_window.list -side top -fill both -expand yes
pack .files_window.close -side bottom -fill x -expand no -anchor s
bind .files_window.list <Any-ButtonRelease-1> {
set file [%W get [%W curselection]]
gdb_cmd "list $file:1,0"
update_listing [gdb_loc $file:1]
destroy .files_window}
}
button .files -text Files -command files_command
pack .listing -side bottom -fill both -expand yes
#pack .test -side bottom -fill x
pack .start .stop .step .next .continue .finish .up .down .bottom .asm_but \
.registers .files .quit -side left
toplevel .command
wm title .command Command
# Setup command window
label .command.label -text "* Command Buffer *" -borderwidth 2 -relief raised
text .command.text -height 25 -width 80 -relief raised -borderwidth 2 -setgrid true -cursor hand2 -yscrollcommand {.command.scroll set}
scrollbar .command.scroll -orient vertical -command {.command.text yview}
pack .command.label -side top -fill x
pack .command.text -side left -expand yes -fill both
pack .command.scroll -side right -fill y
set command_line {}
gdb_cmd {set language c}
gdb_cmd {set height 0}
gdb_cmd {set width 0}
bind .command.text <Enter> {focus %W}
bind .command.text <Delete> {delete_char %W}
bind .command.text <BackSpace> {delete_char %W}
bind .command.text <Control-u> {delete_line %W}
bind .command.text <Any-Key> {
global command_line
%W insert end %A
%W yview -pickplace end
append command_line %A
}
bind .command.text <Key-Return> {
global command_line
%W insert end \n
%W yview -pickplace end
gdb_cmd $command_line
set command_line {}
update_ptr
%W insert end "(gdb) "
%W yview -pickplace end
}
proc delete_char {win} {
global command_line
tk_textBackspace $win
$win yview -pickplace insert
set tmp [expr [string length $command_line] - 2]
set command_line [string range $command_line 0 $tmp]
}
proc delete_line {win} {
global command_line
$win delete {end linestart + 6 chars} end
$win yview -pickplace insert
set command_line {}
}
wm minsize .command 1 1
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