class Metasm::Gui::DbgConsoleWidget
a widget that displays logs of the debugger, and a cli interface to the dbg
Attributes
cmd_help[RW]
cmd_history[RW]
commands[RW]
dbg[RW]
log[RW]
statusline[RW]
Public Instance Methods
add_log(l)
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# File metasm/gui/debug.rb, line 1211 def add_log(l) @log << l.to_s @log.shift if log.length > @log_length redraw end
click(x, y)
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# File metasm/gui/debug.rb, line 524 def click(x, y) @caret_x = (x-1).to_i / @font_width - 1 @caret_x = [[@caret_x, 0].max, @curline.length].min update_caret end
cmd_dd(addr, dlen=nil, len=nil)
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update the data window, or dump data to console if len given
# File metasm/gui/debug.rb, line 789 def cmd_dd(addr, dlen=nil, len=nil) if addr.kind_of? String s = addr.strip addr = solve_expr!(s) || @parent_widget.mem.curaddr if not s.empty? s = s[1..-1] if s[0] == ?, len ||= solve_expr(s) end end if len while len > 0 data = @dbg.memory[addr, [len, 16].min] le = (@dbg.cpu.endianness == :little) data = '' if @dbg.memory.page_invalid?(addr) case dlen when nil; add_log "#{Expression[addr]} #{data.unpack('C*').map { |c| '%02X' % c }.join(' ').ljust(2*16+15)} #{data.tr("^\x20-\x7e", '.')}" when 1; add_log "#{Expression[addr]} #{data.unpack('C*').map { |c| '%02X' % c }.join(' ')}" when 2; add_log "#{Expression[addr]} #{data.unpack(le ? 'v*' : 'n*').map { |c| '%04X' % c }.join(' ')}" when 4; add_log "#{Expression[addr]} #{data.unpack(le ? 'V*' : 'N*').map { |c| '%08X' % c }.join(' ')}" when 8; add_log "#{Expression[addr]} #{data.unpack('Q*').map { |c| '%016X' % c }.join(' ')}" end addr += 16 len -= 16 end else if dlen @parent_widget.mem.view(:hex).data_size = dlen @parent_widget.mem.view(:hex).resized @parent_widget.mem.showview(:hex) end @parent_widget.mem.focus_addr(solve_expr(addr)) @parent_widget.mem.gui_update end end
doubleclick(x, y)
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# File metasm/gui/debug.rb, line 530 def doubleclick(x, y) # TODO real copy/paste # for now, copy the line under the dblclick y -= height % @font_height y = y.to_i / @font_height hc = height / @font_height if y == hc - 1 txt = @statusline elsif y == hc - 2 txt = @curline else txt = @log.reverse[@log_offset + hc - y - 3].to_s end clipboard_copy(txt) end
gui_update()
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# File metasm/gui/debug.rb, line 1217 def gui_update redraw end
handle_command()
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# File metasm/gui/debug.rb, line 1184 def handle_command add_log(":#@curline") return if @curline == '' @cmd_history << @curline @cmd_history.shift if @cmd_history.length > @cmd_history_length @log_offset = 0 cmd = @curline @curline = '' @caret_x = 0 run_command(cmd) end
init_commands()
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# File metasm/gui/debug.rb, line 825 def init_commands @commands = {} @cmd_help = {} p = @parent_widget new_command('help') { add_log @commands.keys.sort.join(' ') } # TODO help <subject> new_command('d', 'focus data window on an address') { |arg| cmd_dd(arg) } new_command('db', 'dump/focus bytes in data window') { |arg| cmd_dd(arg, 1) } new_command('dw', 'dump/focus words in data window') { |arg| cmd_dd(arg, 2) } new_command('dd', 'dump/focus dwords in data window') { |arg| cmd_dd(arg, 4) } new_command('dq', 'dump/focus qwords in data window') { |arg| cmd_dd(arg, 8) } new_command('dc', 'focus C struct in data window: <name> <addr>') { |arg| name, addr = arg.strip.split(/\s+/, 2) addr = (addr ? solve_expr(addr) : @parent_widget.mem.curaddr) @parent_widget.mem.focus_addr(addr, :cstruct, false, name) } new_command('dC', 'dump C struct: dC <name> <addr>') { |arg| name, addr = arg.strip.split(/\s+/, 2) addr = (addr ? solve_expr(addr) : @parent_widget.mem.curaddr) if st = @dbg.disassembler.c_parser.decode_c_struct(name, @dbg.memory, addr) add_log st.to_s.gsub("\t", ' ') end } new_command('u', 'focus code window on an address') { |arg| p.code.focus_addr(solve_expr(arg)) } new_command('.', 'focus code window on current address') { p.code.focus_addr(solve_expr(@dbg.register_pc.to_s)) } new_command('wc', 'set code window height') { |arg| if arg == '' p.code.curview.grab_focus else p.resize_child(p.code, width, arg.to_i*@font_height) end } new_command('wd', 'set data window height') { |arg| if arg == '' p.mem.curview.grab_focus else p.resize_child(p.mem, width, arg.to_i*@font_height) end } new_command('wp', 'set console window height') { |arg| if arg == '' grab_focus else p.resize_child(self, width, arg.to_i*@font_height) end } new_command('width', 'set window width (chars)') { |arg| if a = solve_expr(arg); p.win.width = a*@font_width else add_log "width #{p.win.width/@font_width}" end } new_command('height', 'set window height (chars)') { |arg| if a = solve_expr(arg); p.win.height = a*@font_height else add_log "height #{p.win.height/@font_height}" end } new_command('continue', 'run', 'let the target run until something occurs') { p.dbg_continue } new_command('stepinto', 'singlestep', 'run a single instruction of the target') { p.dbg_singlestep } new_command('stepover', 'run a single instruction of the target, do not enter into subfunctions') { p.dbg_stepover } new_command('stepout', 'stepover until getting out of the current function') { p.dbg_stepout } new_command('bpx', 'set a breakpoint') { |arg| arg =~ /^(.*?)( once)?(?: if (.*?))?(?: do (.*?))?(?: if (.*?))?$/i e, o, c, a = $1, $2, ($3 || $5), $4 o = o ? true : false cd = parse_expr(c) if c cb = lambda { a.split(';').each { |aaa| run_command(aaa) } } if a @dbg.bpx(solve_expr(e), o, cd, &cb) } new_command('hwbp', 'set a hardware breakpoint (hwbp 0x2345 w)') { |arg| arg =~ /^(.*?)( once)?( [rwx])?(?: if (.*?))?(?: do (.*?))?(?: if (.*?))?$/i e, o, t, c, a = $1, $2, $3, ($4 || $6), $5 o = o ? true : false t = (t || 'x').strip.to_sym cd = parse_expr(c) if c cb = lambda { a.split(';').each { |aaa| run_command(aaa) } } if a @dbg.hwbp(solve_expr(e), t, 1, o, cd, &cb) } new_command('bpm', 'set a hardware memory breakpoint: bpm r 0x4800ff 16') { |arg| arg =~ /^(.*?)(?: if (.*?))?(?: do (.*?))?(?: if (.*?))?$/i e, c, a = $1, ($2 || $4), $3 cd = parse_expr(c) if c cb = lambda { a.split(';').each { |aaa| run_command(aaa) } } if a raise 'bad syntax: bpm r|w|x addr [len]' unless e =~ /^([rwx]) (.*)/i mode = $1.downcase.to_sym e = $2 exp = solve_expr!(e) len = solve_expr(e) if e != '' len ||= 1 @dbg.bpm(exp, mode, len, false, cd, &cb) } new_command('g', 'wait until target reaches the specified address') { |arg| arg =~ /^(.*?)(?: if (.*?))?(?: do (.*?))?(?: if (.*?))?$/i e, c, a = $1, ($2 || $4), $3 cd = parse_expr(c) if c cb = lambda { a.split(';').each { |aaa| run_command(aaa) } } if a @dbg.bpx(solve_expr(e), true, cd, &cb) if arg p.dbg_continue } new_command('refresh', 'redraw', 'update', 'update the target memory/register cache') { @dbg.invalidate @dbg.dasm_invalidate p.gui_update } new_command('bl', 'list breakpoints') { @bl = [] @dbg.all_breakpoints.each { |b| add_log "#{@bl.length} #{@dbg.addrname!(b.address)} #{b.type} #{b.state}#{" if #{b.condition}" if b.condition}" @bl << b } } new_command('bc', 'clear breakpoints') { |arg| @bl ||= @dbg.all_breakpoints if arg == '*' @bl.each { |b| @dbg.del_bp(b) } else next if not i = solve_expr(arg) if b = @bl[i] @dbg.del_bp(b) end end } new_command('break', 'interrupt a running target') { |arg| @dbg.break ; p.post_dbg_run } new_command('kill', 'kill the target') { |arg| @dbg.kill(arg) ; p.post_dbg_run } new_command('detach', 'detach from the target') { @dbg.detach ; p.post_dbg_run } new_command('r', 'read/write the content of a register') { |arg| reg, val = arg.split(/\s+|\s*=\s*/, 2) if reg == 'fl' @dbg.toggle_flag(val.to_sym) elsif not reg @dbg.register_list.each { |r| add_log "#{r} = #{Expression[@dbg.get_reg_value(r)]}" } elsif not val add_log "#{reg} = #{Expression[@dbg.get_reg_value(reg.to_sym)]}" else @dbg.set_reg_value(reg.to_sym, solve_expr(val)) end p.regs.gui_update } new_command('ma', 'memory_ascii', 'write memory (ascii) - ma <addr> foo bar') { |arg| next if not addr = solve_expr!(arg) data = arg.strip @dbg.memory[addr, data.length] = data @dbg.invalidate @dbg.dasm_invalidate p.gui_update } new_command('mx', 'memory_hex', 'write memory (hex) - mx <addr> 0011223344') { |arg| next if not addr = solve_expr!(arg) data = [arg.delete(' ')].pack('H*') @dbg.memory[addr, data.length] = data @dbg.invalidate @dbg.dasm_invalidate p.gui_update } new_command('?', 'display a value') { |arg| next if not v = solve_expr(arg) if v.kind_of?(Expression) add_log "#{v}" else add_log "#{v} 0x#{v.to_s(16)} #{[v & 0xffff_ffff].pack('L').inspect} #{@dbg.addrname!(v)}" end } new_command('exit', 'quit', 'quit the debugger interface') { p.win.destroy } new_command('ruby', 'execute arbitrary ruby code') { |arg| case ret = eval(arg) when nil, true, false, Symbol; add_log ret.inspect when String; add_log ret[0, 64].inspect when Integer, Expression; add_log Expression[ret].to_s else add_log "#<#{ret.class}>" end } new_command('loadsyms', 'load symbols from a mapped module') { |arg| if not arg.empty? and arg = (solve_expr(arg) rescue arg) @dbg.loadsyms(arg) else @dbg.loadallsyms { |a| @statusline = "loading symbols from #{Expression[a]}" redraw Gui.main_iter } end p.gui_update } new_command('scansyms', 'scan target memory for loaded modules') { if defined? @scan_addr and @scan_addr add_log 'scanning @%08x' % @scan_addr next end @scan_addr = 0 Gui.idle_add { if @scan_addr <= 0xffff_f000 # cpu.size? protect { @dbg.loadsyms(@scan_addr) } @scan_addr += 0x1000 true else add_log 'scansyms finished' @scan_addr = nil p.gui_update nil end } } new_command('symbol', 'display information on symbols') { |arg| arg = arg.to_s.downcase @dbg.symbols.map { |k, v| an = @dbg.addrname(k) ; [k, an] if an.downcase.include? arg }.compact.sort_by { |k, v| v.downcase }.each { |k, v| add_log "#{Expression[k]} #{@dbg.addrname(k)}" } } new_command('maps', 'show file mappings from parsed modules') { |arg| want = arg.to_s.downcase want = nil if want == '' @dbg.modulemap.map { |n, (a_b, a_e)| [a_b, "#{Expression[a_b]}-#{Expression[a_e]} #{n}"] if not want or n.downcase.include?(want) }.compact.sort.each { |s1, s2| add_log s2 } } new_command('rawmaps', 'show OS file mappings') { |arg| # XXX listwindow @dbg.mappings.sort.each { |a, l, *i| foo = i*' ' next if arg.to_s != '' and foo !~ /#{arg}/i add_log "%08x %06x %s" % [a, l, i*' '] } } new_command('add_symbol', 'add a symbol name') { |arg| name, val = arg.to_s.split(/\s+/, 2) val = solve_expr(val) if val.kind_of? Integer @dbg.symbols[val] = name @dbg.disassembler.set_label_at(val, name) p.gui_update end } new_command('bt', 'backtrace', 'stacktrace', 'bt [limit] - show a stack trace from current pc') { |arg| arg = solve_expr(arg) if arg arg = 500 if not arg.kind_of? ::Integer @dbg.stacktrace(arg) { |a, s| add_log "#{Expression[a]} #{s}" } } new_command('dasm', 'disassemble_fast', 'disassembles from an address') { |arg| addr = solve_expr(arg) dasm = @dbg.disassembler dasm.disassemble_fast(addr) dasm.function_blocks(addr).keys.sort.each { |a| next if not di = dasm.di_at(a) dasm.dump_block(di.block) { |l| add_log l } } p.gui_update } new_command('save_hist', 'save the command buffer to a file') { |arg| File.open(arg, 'w') { |fd| fd.puts @log } } new_command('watch', 'follow an expression in the data view (none to delete)') { |arg| if not arg add_log p.watchpoint[p.mem].to_s elsif arg == 'nil' or arg == 'none' or arg == 'delete' p.watchpoint.delete p.mem else p.watchpoint[p.mem] = parse_expr(arg) end } new_command('list_pid', 'list pids currently debugged') { |arg| add_log @dbg.list_debug_pids.sort.map { |pp| pp == @dbg.pid ? "*#{pp}" : pp }.join(' ') } new_command('list_tid', 'list tids currently debugged') { |arg| add_log @dbg.list_debug_tids.sort.map { |tt| tt == @dbg.tid ? "*#{tt}" : tt }.join(' ') } new_command('list_processes', 'list processes available for debugging') { |arg| @dbg.list_processes.each { |pp| add_log "#{pp.pid} #{pp.path}" } } new_command('list_threads', 'list thread ids of the current process') { |arg| @dbg.list_threads.each { |t| stf = { :state => @dbg.state, :info => @dbg.info } if t == @dbg.tid stf ||= @dbg.tid_stuff[t] stf ||= {} add_log "#{t} #{stf[:state]} #{stf[:info]}" } } new_command('pid', 'select a pid') { |arg| if pid = solve_expr(arg) @dbg.pid = pid else add_log "pid #{@dbg.pid}" end } new_command('tid', 'select a tid') { |arg| if tid = solve_expr(arg) @dbg.tid = tid else add_log "tid #{@dbg.tid} #{@dbg.state} #{@dbg.info}" end } new_command('exception_pass', 'pass the exception unhandled to the target on next continue') { @dbg.pass_current_exception } new_command('exception_handle', 'handle the exception, hide it from the target on next continue') { @dbg.pass_current_exception false } new_command('exception_pass_all', 'ignore all target exceptions') { @dbg.pass_all_exceptions = true } new_command('exception_handle_all', 'break on target exceptions') { @dbg.pass_all_exceptions = false } new_command('thread_events_break', 'break on thread creation/termination') { @dbg.ignore_newthread = false @dbg.ignore_endthread = false } new_command('thread_events_ignore', 'ignore thread creation/termination') { @dbg.ignore_newthread = true @dbg.ignore_endthread = true } new_command('trace_children', 'trace children of debuggee (0|1)') { |arg| arg = case arg.to_s.strip.downcase when '0', 'no', 'false'; false else true end add_log "trace children #{arg ? 'active' : 'inactive'}" # update the flag for future debugee @dbg.trace_children = arg # change current debugee setting if supported @dbg.do_trace_children if @dbg.respond_to?(:do_trace_children) } new_command('attach', 'attach to a running process') { |arg| if pr = @dbg.list_processes.find { |pp| pp.path.to_s.downcase.include?(arg.downcase) } pid = pr.pid else pid = solve_expr(arg) end @dbg.attach(pid) } new_command('create_process', 'create a new process and debug it') { |arg| @dbg.create_process(arg) } new_command('plugin', 'load', 'load a debugger plugin') { |arg| @dbg.load_plugin arg add_log "loaded plugin #{File.basename(arg, '.rb')}" } @dbg.ui_command_setup(self) if @dbg.respond_to? :ui_command_setup end
initialize_visible()
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# File metasm/gui/debug.rb, line 511 def initialize_visible grab_focus gui_update end
initialize_widget(dbg, parent_widget)
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# File metasm/gui/debug.rb, line 489 def initialize_widget(dbg, parent_widget) @dbg = dbg @parent_widget = parent_widget @dbg.gui = self @log = [] @log_length = 4000 @log_offset = 0 @curline = '' @statusline = 'type \'help\' for help' @cmd_history = [''] @cmd_history_length = 200 # number of past commands to remember @cmd_histptr = nil @dbg.set_log_proc { |l| add_log l } @default_color_association = ColorTheme.merge :log => :palegrey, :curline => :white, :caret => :yellow, :background => :black, :status => :black, :status_bg => '088' init_commands end
keyboard_callback()
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# File metasm/gui/debug.rb, line 1181 def keyboard_callback; @parent_widget.keyboard_callback end
keyboard_callback_ctrl()
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# File metasm/gui/debug.rb, line 1182 def keyboard_callback_ctrl; @parent_widget.keyboard_callback_ctrl end
keypress(key)
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# File metasm/gui/debug.rb, line 620 def keypress(key) case key when :left if @caret_x > 0 @caret_x -= 1 update_caret end when :right if @caret_x < @curline.length @caret_x += 1 update_caret end when :up if not @cmd_histptr if @curline != '' @cmd_history << @curline @cmd_histptr = 2 else @cmd_histptr = 1 end else @cmd_histptr += 1 @cmd_histptr = 1 if @cmd_histptr > @cmd_history.length end @curline = @cmd_history[-@cmd_histptr].dup @caret_x = @curline.length update_status_cmd redraw when :down if not @cmd_histptr @cmd_history << @curline if @curline != '' @cmd_histptr = @cmd_history.length else @cmd_histptr -= 1 @cmd_histptr = @cmd_history.length if @cmd_histptr < 1 end @curline = @cmd_history[-@cmd_histptr].dup @caret_x = @curline.length update_status_cmd redraw when :home @caret_x = 0 update_caret when :end @caret_x = @curline.length update_caret when :pgup @log_offset += height/@font_height - 3 redraw when :pgdown @log_offset -= height/@font_height - 3 redraw when :tab # autocomplete if @caret_x > 0 and not @curline[0, @caret_x].index(?\ ) and st = @curline[0, @caret_x] and not @commands[st] keys = @commands.keys.find_all { |k| k[0, st.length] == st } while st.length < keys.first.to_s.length and keys.all? { |k| k[0, st.length+1] == keys.first[0, st.length+1] } st << keys.first[st.length] @curline[@caret_x, 0] = st[-1, 1] @caret_x += 1 end update_status_cmd redraw end when :enter @cmd_histptr = nil handle_command update_status_cmd when :esc when :delete if @caret_x < @curline.length @curline[@caret_x, 1] = '' update_status_cmd redraw end when :backspace if @caret_x > 0 @caret_x -= 1 @curline[@caret_x, 1] = '' update_status_cmd redraw end when :insert if keyboard_state(:shift) txt = clipboard_paste.to_s @curline[@caret_x, 0] = txt @caret_x += txt.length update_status_cmd redraw end when Symbol; return false # avoid :shift cannot coerce to Int warning when ?\x20..?\x7e @curline[@caret_x, 0] = key.chr @caret_x += 1 update_status_cmd redraw else return false end true end
keypress_ctrl(key)
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# File metasm/gui/debug.rb, line 729 def keypress_ctrl(key) case key when ?v txt = clipboard_paste.to_s @curline[@caret_x, 0] = txt @caret_x += txt.length update_status_cmd redraw else return false end true end
mouse_wheel(dir, x, y)
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# File metasm/gui/debug.rb, line 561 def mouse_wheel(dir, x, y) case dir when :up; @log_offset += 3 when :down; @log_offset -= 3 end redraw end
new_command(*cmd, &b)
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# File metasm/gui/debug.rb, line 756 def new_command(*cmd, &b) hlp = cmd.pop if cmd.last.include? ' ' cmd.each { |c| @cmd_help[c] = hlp || 'nodoc' @commands[c] = lambda { |*a| protect { b.call(*a) } } } end
paint()
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# File metasm/gui/debug.rb, line 569 def paint y = height render = lambda { |str, color| draw_string_color(color, 1, y, str) y -= @font_height } w_w = width y -= @font_height draw_rectangle_color(:status_bg, 0, y, w_w, @font_height) str = "#{@dbg.pid}:#{@dbg.tid} #{@dbg.state} #{@dbg.info}" draw_string_color(:status, w_w-str.length*@font_width-1, y, str) draw_string_color(:status, 1+@font_width, y, @statusline) y -= @font_height w_w_c = w_w/@font_width @caret_y = y if @caret_x < w_w_c-1 render[':' + @curline, :curline] else render['~' + @curline[@caret_x-w_w_c+2, w_w_c], :curline] end l_nr = -1 lastline = nil @log_offset = 0 if @log_offset < 0 @log.reverse.each { |l| l.scan(/.{1,#{w_w/@font_width}}/).reverse_each { |l_| lastline = l_ l_nr += 1 next if l_nr < @log_offset render[l_, :log] } break if y < 0 } if lastline and l_nr < @log_offset render[lastline, :log] @log_offset = l_nr-1 end if focus? cx = [@caret_x+1, w_w_c-1].min*@font_width+1 cy = @caret_y draw_line_color(:caret, cx, cy, cx, cy+@font_height-1) end @oldcaret_x = @caret_x end
parse_expr(arg)
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arg str -> expr value, with special codeptr/dataptr = code/data.curaddr
# File metasm/gui/debug.rb, line 765 def parse_expr(arg) parse_expr!(arg.dup) end
parse_expr!(arg)
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# File metasm/gui/debug.rb, line 769 def parse_expr!(arg) @dbg.parse_expr!(arg) { |e| case e.downcase when 'code_addr', 'codeptr'; @parent_widget.code.curaddr when 'data_addr', 'dataptr'; @parent_widget.mem.curaddr end } end
rightclick(x, y)
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copy/paste word under cursor (paste when on last line)
# File metasm/gui/debug.rb, line 547 def rightclick(x, y) y -= height % @font_height y = y.to_i / @font_height hc = height / @font_height x /= @font_width if y >= hc - 2 keypress_ctrl ?v else txt = @log.reverse[@log_offset + hc - y - 3].to_s word = txt[0...x].to_s[/\w*$/] << txt[x..-1].to_s[/^\w*/] clipboard_copy(word) end end
run_command(cmd)
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# File metasm/gui/debug.rb, line 1197 def run_command(cmd) cmd = cmd.sub(/^\s+/, '') cn = cmd.split.first if not @commands[cn] a = @commands.keys.find_all { |k| k[0, cn.length] == cn } cn = a.first if a.length == 1 end if pc = @commands[cn] pc[cmd.split(/\s+/, 2)[1].to_s] else add_log 'unknown command' end end
solve_expr(arg)
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# File metasm/gui/debug.rb, line 778 def solve_expr(arg) return arg if arg.kind_of? Integer solve_expr!(arg.dup) end
solve_expr!(arg)
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# File metasm/gui/debug.rb, line 783 def solve_expr!(arg) return if not e = parse_expr!(arg) @dbg.resolve_expr(e) end
swapin_pid()
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# File metasm/gui/debug.rb, line 520 def swapin_pid @parent_widget.swapin_pid end
swapin_tid()
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# File metasm/gui/debug.rb, line 516 def swapin_tid @parent_widget.swapin_tid end
update_caret()
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hint that the caret moved
# File metasm/gui/debug.rb, line 1222 def update_caret return if @oldcaret_x == @caret_x w_w = width - @font_width x1 = (@oldcaret_x+1) * @font_width + 1 x2 = (@caret_x+1) * @font_width + 1 y = @caret_y if x1 > w_w or x2 > w_w invalidate(0, y, 100000, @font_height) else invalidate(x1-1, y, 2, @font_height) invalidate(x2-1, y, 2, @font_height) end @oldcaret_x = @caret_x end
update_status_cmd()
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# File metasm/gui/debug.rb, line 742 def update_status_cmd st = @curline.split.first if @commands[st] @statusline = "#{st}: #{@cmd_help[st]}" else keys = @commands.keys.find_all { |k| k[0, st.length] == st } if st if keys and not keys.empty? @statusline = keys.sort.join(' ') else @statusline = 'type \'help\' for help' end end end
wrap_run(&b)
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# File metasm/gui/debug.rb, line 1180 def wrap_run(&b) @parent_widget.wrap_run(&b) end