arduino-0018-windows
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# Block and frame class implementations for GDBtk.
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# Copyright (C) 1997, 1998, 1999 Cygnus Solutions
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License (GPL) as published by
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# the Free Software Foundation; either version 2 of the License, or (at
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# your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# ------------------------------------------------------------------
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# Block
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# ------------------------------------------------------------------
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itcl::body Block::constructor {start end args} {
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# Record runtime info about this block
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set _start $start
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set _end $end
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set _variables [_findVariables]
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eval configure $args
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}
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# Destroy ourself.
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itcl::body Block::destructor {} {
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# Each block is responsible for destroying its
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# variables and removing them from the list of
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# of all variables for this frame
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foreach var $_variables {
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$var delete
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}
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}
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# Return a list of variables defined in this block
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# This list is determined when we are created.
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itcl::body Block::variables {} {
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return $_variables
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}
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# Find the new variables for this block.
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itcl::body Block::_findVariables {} {
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# Find the new variables for this block.
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set variables [gdb_block_variables $_start $_end]
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# Create variables.
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set vars {}
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foreach variable $variables {
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# Be paranoid: catch errors constructing variable.
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set err [catch {gdb_variable create -expr $variable} obj]
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if {!$err} {
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lappend vars $obj
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}
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}
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return $vars
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}
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itcl::body Block::update {} {
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set changed {}
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foreach var $_variables {
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set changed [concat $changed [$var update]]
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}
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return $changed
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}
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itcl::body Block::info {} {
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return [list $_start $_end]
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}
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# ------------------------------------------------------------------
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# Frame
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# ------------------------------------------------------------------
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itcl::body Frame::constructor {addr} {
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set _addr $addr
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# Create all blocks in the selected frame
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set _blocks {}
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_createBlocks [gdb_get_blocks]
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}
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itcl::body Frame::destructor {} {
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# destroy our own blocks
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foreach block $_blocks {
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_removeBlock $block
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}
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}
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itcl::body Frame::_removeBlock {blockObj} {
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set i [lsearch $_blocks $blockObj]
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if {$i != -1} {
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set _blocks [lreplace $_blocks $i $i]
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delete object $blockObj
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}
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}
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itcl::body Frame::_addBlock {block} {
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set start [lindex $block 0]
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set end [lindex $block 1]
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set b [Block \#auto $start $end]
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lappend _blocks $b
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return $b
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}
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itcl::body Frame::_createBlocks {blocks} {
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foreach block $blocks {
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set b [_addBlock $block]
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}
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}
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itcl::body Frame::update {} {
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set vars {}
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foreach block $_blocks {
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set vars [concat $vars [$block update]]
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}
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return $vars
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}
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itcl::body Frame::variables {} {
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set vars {}
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foreach block $_blocks {
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set vars [concat $vars [$block variables]]
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}
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return $vars
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}
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itcl::body Frame::new {} {
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# find any new variables. So get a list of all blocks,
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# eliminate duplicates, and get those variables.
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set blocks [gdb_get_blocks]
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set new {}
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foreach block $blocks {
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set b [_findBlock $block]
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if {$b == ""} {
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# Found a new block. Create it get its variables
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set b [_addBlock $block]
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set new [concat $new [$b variables]]
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}
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}
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return $new
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}
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itcl::body Frame::deleteOld {} {
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foreach block [_oldBlocks] {
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_removeBlock $block
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}
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}
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itcl::body Frame::_oldBlocks {} {
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set blocks [gdb_get_blocks]
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set oldObjs $_blocks
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foreach block $blocks {
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set obj [_findBlock $block]
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if {$obj != ""} {
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# Found it.. Remove it from old
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set i [lsearch $oldObjs $obj]
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set oldObjs [lreplace $oldObjs $i $i]
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}
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}
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return $oldObjs
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}
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itcl::body Frame::old {} {
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# All the variables in the blocks in old are now gone...
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# We don't remove blocks here, since the frontend viewer
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# might want to keep these variables around for a little while
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# longer.
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set vars {}
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set old [_oldBlocks]
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foreach block $old {
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set vars [concat $vars [$block variables]]
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}
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return $vars
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}
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itcl::body Frame::_findBlock {block} {
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foreach b $_blocks {
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set info [$b info]
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if {$info == $block} {
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return $b
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}
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}
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return ""
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}
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itcl::body Frame::_findBlockIndex {block} {
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set i 0
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foreach b $_blocks {
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set info [$b info]
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if {$info == $block} {
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return $i
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}
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incr i
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}
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return -1
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}
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