lldb/utils/lui/breakwin.py

   1 ##===-- breakwin.py ------------------------------------------*- Python -*-===##
   2 ##
   3 # Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 # See https://llvm.org/LICENSE.txt for license information.
   5 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 ##
   7 ##===----------------------------------------------------------------------===##
   8
   9 import cui
  10 import curses
  11 import lldb
  12 import lldbutil
  13 import re
  14
  15
  16 class BreakWin(cui.ListWin):
  17     def __init__(self, driver, x, y, w, h):
  18         super(BreakWin, self).__init__(x, y, w, h)
  19         self.driver = driver
  20         self.update()
  21         self.showDetails = {}
  22
  23     def handleEvent(self, event):
  24         if isinstance(event, lldb.SBEvent):
  25             if lldb.SBBreakpoint.EventIsBreakpointEvent(event):
  26                 self.update()
  27         if isinstance(event, int):
  28             if event == ord("d"):
  29                 self.deleteSelected()
  30             if event == curses.ascii.NL or event == curses.ascii.SP:
  31                 self.toggleSelected()
  32             elif event == curses.ascii.TAB:
  33                 if self.getSelected() != -1:
  34                     target = self.driver.getTarget()
  35                     if not target.IsValid():
  36                         return
  37                     i = target.GetBreakpointAtIndex(self.getSelected()).id
  38                     self.showDetails[i] = not self.showDetails[i]
  39                     self.update()
  40         super(BreakWin, self).handleEvent(event)
  41
  42     def toggleSelected(self):
  43         if self.getSelected() == -1:
  44             return
  45         target = self.driver.getTarget()
  46         if not target.IsValid():
  47             return
  48         bp = target.GetBreakpointAtIndex(self.getSelected())
  49         bp.SetEnabled(not bp.IsEnabled())
  50
  51     def deleteSelected(self):
  52         if self.getSelected() == -1:
  53             return
  54         target = self.driver.getTarget()
  55         if not target.IsValid():
  56             return
  57         bp = target.GetBreakpointAtIndex(self.getSelected())
  58         target.BreakpointDelete(bp.id)
  59
  60     def update(self):
  61         target = self.driver.getTarget()
  62         if not target.IsValid():
  63             self.win.erase()
  64             self.win.noutrefresh()
  65             return
  66         selected = self.getSelected()
  67         self.clearItems()
  68         for i in range(0, target.GetNumBreakpoints()):
  69             bp = target.GetBreakpointAtIndex(i)
  70             if bp.IsInternal():
  71                 continue
  72             text = lldbutil.get_description(bp)
  73             # FIXME: Use an API for this, not parsing the description.
  74             match = re.search("SBBreakpoint: id = ([^,]+), (.*)", text)
  75             try:
  76                 id = match.group(1)
  77                 desc = match.group(2).strip()
  78                 if bp.IsEnabled():
  79                     text = "%s: %s" % (id, desc)
  80                 else:
  81                     text = "%s: (disabled) %s" % (id, desc)
  82             except ValueError as e:
  83                 # bp unparsable
  84                 pass
  85
  86             if self.showDetails.setdefault(bp.id, False):
  87                 for location in bp:
  88                     desc = lldbutil.get_description(
  89                         location, lldb.eDescriptionLevelFull
  90                     )
  91                     text += "\n  " + desc
  92             self.addItem(text)
  93         self.setSelected(selected)