diff options
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 18 | ||||
| -rw-r--r-- | gdb/gdbtk.c | 102 | ||||
| -rw-r--r-- | gdb/gdbtk.tcl | 860 |
3 files changed, 882 insertions, 98 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 2e46ba9..ff45ba7 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,21 @@ +Tue Sep 13 08:59:04 1994 Stu Grossman (grossman@cygnus.com) + + * gdbtk.c (gdbtk_flush gdbtk_fputs): Buffer up output to make + disassembly more efficient. + * (breakpoint_notify): Include pc in gdbtk_tcl_breakpoint + callback. + * (gdb_loc): Include pc in return value. Also, return function + name if arg was specified. + * (gdb_cmd_stub): Call gdb_flush to drain internal GDB buffers + after command completes. + * (gdbtk_init): Improve error handling. + + * gdbtk.tcl: Add lots of comments. Clean up code. + * (gdbtk_tcl_fputs): Make output window redirectable. + * Add assembly window, and breapoint support. + * Make button 1 in margin toggle breakpoints. + * Use stippling to indicate breakpoint disabling. + Sun Sep 11 22:34:57 1994 Jeff Law (law@snake.cs.utah.edu) * config/pa/tm-hppa.h (REGISTER_NAMES): Use r26-r23 for arg0-arg3. diff --git a/gdb/gdbtk.c b/gdb/gdbtk.c index 4746f2a..e3a2ce7 100644 --- a/gdb/gdbtk.c +++ b/gdb/gdbtk.c @@ -39,6 +39,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <string.h> #include <tcl.h> #include <tk.h> +#include <unistd.h> /* Non-zero means that we're doing the gdbtk interface. */ int gdbtk = 0; @@ -63,20 +64,54 @@ null_routine(arg) /* This routine redirects the output of fputs_unfiltered so that the user can see what's going on in his debugger window. */ +static char holdbuf[200]; +static char *holdbufp = holdbuf; +static int holdfree = sizeof (holdbuf); + static void -gdbtk_fputs (ptr) - const char *ptr; +flush_holdbuf () { - Tcl_VarEval (interp, "gdbtk_tcl_fputs ", "{", ptr, "}", NULL); + if (holdbufp == holdbuf) + return; + + Tcl_VarEval (interp, "gdbtk_tcl_fputs ", "{", holdbuf, "}", NULL); + holdbufp = holdbuf; + holdfree = sizeof (holdbuf); } static void gdbtk_flush (stream) FILE *stream; { + flush_holdbuf (); + Tcl_VarEval (interp, "gdbtk_tcl_flush", NULL); } +static void +gdbtk_fputs (ptr) + const char *ptr; +{ + int len; + + len = strlen (ptr) + 1; + + if (len > holdfree) + { + flush_holdbuf (); + + if (len > sizeof (holdbuf)) + { + Tcl_VarEval (interp, "gdbtk_tcl_fputs ", "{", ptr, "}", NULL); + return; + } + } + + strncpy (holdbufp, ptr, len); + holdbufp += len - 1; + holdfree -= len - 1; +} + static int gdbtk_query (args) va_list args; @@ -135,7 +170,7 @@ breakpoint_notify(b, action) const char *action; { struct symbol *sym; - char bpnum[50], line[50]; + char bpnum[50], line[50], pc[50]; struct symtab_and_line sal; char *filename; int v; @@ -149,6 +184,7 @@ breakpoint_notify(b, action) sprintf (bpnum, "%d", b->number); sprintf (line, "%d", sal.line); + sprintf (pc, "0x%x", b->address); v = Tcl_VarEval (interp, "gdbtk_tcl_breakpoint ", @@ -156,6 +192,7 @@ breakpoint_notify(b, action) " ", bpnum, " ", filename, " ", line, + " ", pc, NULL); if (v != TCL_OK) @@ -210,36 +247,37 @@ gdb_loc (clientData, interp, argc, argv) char buf[100]; struct symtab_and_line sal; char *funcname; + CORE_ADDR pc; if (argc == 1) { struct frame_info *frame; struct symbol *func; - CORE_ADDR pc; frame = get_frame_info (selected_frame); + pc = frame ? frame->pc : stop_pc; - func = find_pc_function (pc); - funcname = func ? SYMBOL_NAME (func) : ""; + sal = find_pc_line (pc, 0); } else if (argc == 2) { - struct cleanup *old_chain; struct symtabs_and_lines sals; + int nelts; sals = decode_line_spec (argv[1], 1); + nelts = sals.nelts; + sal = sals.sals[0]; + free (sals.sals); + if (sals.nelts != 1) { Tcl_SetResult (interp, "Ambiguous line spec", TCL_STATIC); - free (sals.sals); return TCL_ERROR; } - sal = sals.sals[0]; - free (sals.sals); - funcname = "*"; + pc = sal.pc; } else { @@ -247,18 +285,23 @@ gdb_loc (clientData, interp, argc, argv) return TCL_ERROR; } - filename = full_filename (sal.symtab); - - sprintf (buf, "%d", sal.line); - if (sal.symtab) Tcl_AppendElement (interp, sal.symtab->filename); else Tcl_AppendElement (interp, ""); + + find_pc_partial_function (pc, &funcname, NULL, NULL); Tcl_AppendElement (interp, funcname); + + filename = full_filename (sal.symtab); Tcl_AppendElement (interp, filename); + + sprintf (buf, "%d", sal.line); Tcl_AppendElement (interp, buf); /* line number */ + sprintf (buf, "0x%x", pc); + Tcl_AppendElement (interp, buf); /* PC */ + if (filename) free(filename); @@ -300,6 +343,11 @@ gdb_cmd (clientData, interp, argc, argv) bpstat_do_actions (&stop_bpstat); do_cleanups (old_chain); + /* Drain all buffered command output */ + + gdb_flush (gdb_stderr); + gdb_flush (gdb_stdout); + /* We could base the return value on val, but that would require most users to use catch. Since GDB errors are already being handled elsewhere, I see no reason to pass them up to the caller. */ @@ -379,20 +427,14 @@ gdbtk_init () Tcl_CreateCommand (interp, "gdb_listfiles", gdb_listfiles, NULL, NULL); gdbtk_filename = getenv ("GDBTK_FILENAME"); - if (gdbtk_filename) - { - if (Tcl_EvalFile (interp, gdbtk_filename) != TCL_OK) - error ("Failure reading %s: %s", gdbtk_filename, interp->result); - } - else - { - if (Tcl_EvalFile (interp, "gdbtk.tcl") != TCL_OK) - { - Tcl_ResetResult (interp); - if (Tcl_EvalFile (interp, GDBTK_FILENAME) != TCL_OK) - error ("Failure reading %s: %s", GDBTK_FILENAME, interp->result); - } - } + if (!gdbtk_filename) + if (access ("gdbtk.tcl", R_OK) == 0) + gdbtk_filename = "gdbtk.tcl"; + else + gdbtk_filename = GDBTK_FILENAME; + + if (Tcl_EvalFile (interp, gdbtk_filename) != TCL_OK) + error ("Failure reading %s: %s", gdbtk_filename, interp->result); command_loop_hook = Tk_MainLoop; fputs_unfiltered_hook = gdbtk_fputs; diff --git a/gdb/gdbtk.tcl b/gdb/gdbtk.tcl index 425041e..3d9f978 100644 --- a/gdb/gdbtk.tcl +++ b/gdb/gdbtk.tcl @@ -6,6 +6,8 @@ set current_label {} set screen_height 0 set screen_top 0 set screen_bot 0 +set current_output_win .command.text +set cfunc NIL proc test {} { update_listing {termcap.c foo /etc/termcap 200} @@ -13,136 +15,353 @@ proc test {} { proc echo string {puts stdout $string} +if [info exists env(EDITOR)] then { + set editor $env(EDITOR) + } else { + set editor emacs +} + +# GDB callbacks +# +# These functions are called by GDB (from C code) to do various things in +# TK-land. All start with the prefix `gdbtk_tcl_' to make them easy to find. +# + +# +# GDB Callback: +# +# gdbtk_tcl_fputs (text) - Output text to the command window +# +# Description: +# +# GDB calls this to output TEXT to the GDB command window. The text is +# placed at the end of the text widget. Note that output may not occur, +# due to buffering. Use gdbtk_tcl_flush to cause an immediate update. +# + proc gdbtk_tcl_fputs {arg} { - .command.text insert end "$arg" - .command.text yview -pickplace end + 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 {} { + $current_output_win yview -pickplace end + update idletasks } -proc gdbtk_tcl_flush {} {update idletasks} +# +# GDB Callback: +# +# gdbtk_tcl_query (message) - Create a yes/no query dialog box +# +# Description: +# +# GDB calls this to create a yes/no dialog box containing MESSAGE. GDB +# is hung while the dialog box is active (ie: no commands will work), +# however windows can still be refreshed in case of damage or exposure. +# proc gdbtk_tcl_query {message} { tk_dialog .query "gdb : query" "$message" {} 1 "No" "Yes" } -if [info exists env(EDITOR)] then { - set editor $env(EDITOR) - } else { - set editor emacs -} +# +# 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 } -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 bind $line <1> { -# echo "tag %W %X %Y %x" -# echo "tag names [$wins($cfile) tag names]" - } - - $win configure -state disabled +# +# 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 delete_breakpoint_tag {win line} { - $win configure -state normal - $win delete $line.0 - $win insert $line.0 " " - $win tag delete $line - $win configure -state disabled -} - -# Callback from GDB to notify us of breakpoint creation. - -proc create_breakpoint {bpnum file line} { +# +# Local procedure: +# +# create_breakpoint (bpnum file line pc) - Record breakpoint info in TK land +# +# Description: +# +# GDB calls this indirectly (through gdbtk_tcl_breakpoint) to notify TK +# land of breakpoint creation. This consists of recording the file and +# line number in the breakpoint_file and breakpoint_line arrays. Also, +# if there is already a window associated with FILE, it is updated with +# a breakpoint tag. +# + +proc create_breakpoint {bpnum file line pc} { global wins global breakpoint_file global breakpoint_line + global pos_to_breakpoint + global cfunc + global pclist # Record breakpoint locations set breakpoint_file($bpnum) $file set breakpoint_line($bpnum) $line + set pos_to_breakpoint($file:$line) $bpnum -# If there isn't a window for this file, don't try to update it +# If there's a window for this file, update it if [info exists wins($file)] { insert_breakpoint_tag $wins($file) $line } + +# If there's an assembly window, update that too + + set win .asm.func_${cfunc} + if [winfo exists $win] { + set line [lsearch -exact $pclist($cfunc) $pc] + incr line + insert_breakpoint_tag $win $line + } } -proc delete_breakpoint {bpnum file line} { +# +# 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 -# Save line number for later +# Save line number and file for later set line $breakpoint_line($bpnum) + set file $breakpoint_file($bpnum) + # Reset breakpoint annotation info + unset pos_to_breakpoint($file:$line) unset breakpoint_file($bpnum) unset breakpoint_line($bpnum) -# If there isn't a window for this file, don't try to update it +# If there's a window for this file, update it if [info exists wins($file)] { delete_breakpoint_tag $wins($file) $line } } -# This is a callback from C code to notify us of breakpoint changes. ACTION -# can be one of create, delete, enable, or disable. +# +# 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 -proc gdbtk_tcl_breakpoint {action bpnum file line} { - ${action}_breakpoint $bpnum $file $line + $wins($file) tag configure $line -fgstipple {} } -# Create the popup listing window menu +# +# 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 -menu .breakpoint -cursor hand2 -.breakpoint add command -label Break -.breakpoint add separator -.breakpoint add command -label "Edit" -command {exec $editor +$selected_line $selected_file &} -.breakpoint add command -label "Set breakpoint" -command {gdb_cmd "break $selected_file:$selected_line"} -#.breakpoint add command -label "Clear breakpoint" -command {echo "Clear"} -#.breakpoint add command -label "Enable breakpoint" -command {echo "Enable"} -#.breakpoint add command -label "Disable breakpoint" -command {echo "Disable"} + $wins($file) tag configure $line -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. +# -# Come here when button is released in the popup menu +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 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 configure -state disabled +} -bind .breakpoint <Any-ButtonRelease-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 - .breakpoint unpost - grab release .breakpoint + .file_popup unpost + grab release .file_popup # Unhighlight the selected line $selected_win tag delete breaktag -# echo "after deleting $selected_win [$selected_win tag names]" -# echo "grab [grab current]" # Actually invoke the menubutton here! tk_invokeMenu %W -# destroy .breakpoint - grab release $selected_win } +# +# 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 breakpoint_menu {win x y xrel yrel} { +proc file_popup_menu {win x y xrel yrel} { global wins global win_to_file global file_to_debug_file @@ -151,10 +370,6 @@ proc breakpoint_menu {win x y xrel yrel} { global selected_file global selected_win - grab $win - -# echo "bpm grab current [grab current]" - # Map TK window name back to file name. set file $win_to_file($win) @@ -174,22 +389,178 @@ proc breakpoint_menu {win x y xrel yrel} { # Post the menu near the pointer, (and grab it) - .breakpoint post [expr $x-[winfo width .breakpoint]/2] [expr $y-10] - grab .breakpoint -# echo "after grab [grab current]" + .file_popup entryconfigure 0 -label "$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_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 + +# 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> {breakpoint_menu %W %X %Y %x %y} + bind $win <1> {listing_window_button_1 %W %X %Y %x %y} bind $win <B1-Motion> do_nothing bind $win n {gdb_cmd next ; update_ptr} bind $win s {gdb_cmd step ; update_ptr} @@ -197,28 +568,176 @@ proc create_file_win {filename} { bind $win f {gdb_cmd finish ; update_ptr} bind $win u {gdb_cmd up ; update_ptr} bind $win d {gdb_cmd down ; update_ptr} + +# Open the file, and read it into the text widget + set fh [open $filename] $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 wholebuf 0.0 end - $win tag bind wholebuf <1> {breakpoint_menu %W %X %Y %x %y} +# Scan though the breakpoint data base and install any destined for this file + foreach bpnum [array names breakpoint_file] { if {$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) - 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} { + global breakpoint_file + global breakpoint_line + global current_output_win + global pclist + +# Replace all the dirty characters in $filename with clean ones, and generate +# a unique name for the text widget. + + set win .asm.func_${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 $funcname" + set current_output_win .command.text + + set numlines [$win index end] + set numlines [lindex [split $numlines .] 0] + +# Delete the first and last lines, cuz these contain useless info + + $win delete 1.0 2.0 + $win delete {end - 1 lines} end + +# Add margins (for annotations) and note the PC for each line + + if [info exists pclist($funcname)] { unset pclist($funcname) } + for {set i 1} {$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 @@ -229,16 +748,26 @@ proc update_listing {linespec} { 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 $cfile] set win_to_file($wins($cfile)) $cfile @@ -246,16 +775,23 @@ proc update_listing {linespec} { set pointers($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) @@ -278,8 +814,196 @@ proc update_listing {linespec} { } } +# +# 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.func_${cfunc} + toplevel .asm + wm minsize .asm 1 1 + + label .asm.label -text "*NIL*" -borderwidth 2 -relief raised + text $win -height 25 -width 80 -relief raised -borderwidth 2 \ + -setgrid true -cursor hand2 \ + -yscrollcommand asmscrollproc + scrollbar .asm.scroll -orient vertical -command {$win 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: +# +# 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 $linespec 0] + + set win .asm.func_${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} then { + pack forget $win + set cfunc $funcname + + set win .asm.func_${cfunc} + +# Create a text widget for this func if necessary + + if ![winfo exists $win] then { + create_asm_win $cfunc + set asm_pointers($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 [lsearch -exact $pclist($cfunc) $pc] + incr line + $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 != $funcname} then { + .asm.label configure -text $funcname + set current_asm_label $funcname + } + +# Update the pointer, scrolling the text widget if necessary to keep the +# pointer in an acceptable part of the screen. + + if [info exists asm_pointers($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 [lsearch -exact $pclist($cfunc) $pc] + + if {$line == -1} { + echo "Can't find PC $pc" + return + } + + incr line + + set pointer_pos [$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] + } +} + +# +# Window: +# +# listing window - Define the listing window. +# +# Description: +# +# + # Setup listing window frame .listing @@ -325,6 +1049,7 @@ button .exit -text Exit -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} proc files_command {} { toplevel .files_window @@ -348,7 +1073,7 @@ button .files -text Files -command files_command pack .listing -side bottom -fill both -expand yes #pack .test -side bottom -fill x -pack .start .step .next .continue .finish .up .down .bottom .files .exit -side left +pack .start .step .next .continue .finish .up .down .bottom .asm_but .files .exit -side left toplevel .command # Setup command window @@ -396,4 +1121,3 @@ proc delete_char {win} { } wm minsize .command 1 1 - |