gdb/testsuite/gdb.python/py-autoloaded-pretty-printers-in-newobjfile-event.py

   1 # Copyright (C) 2021-2023 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file is part of the GDB testsuite. It tests that python pretty
  17 # printers defined in a python script that is autoloaded have been
  18 # registered when a custom event handler for the new_objfile event
  19 # is called.
  20
  21 import gdb
  22 import os
  23
  24
  25 def new_objfile_handler(event):
  26     assert isinstance(event, gdb.NewObjFileEvent)
  27     objfile = event.new_objfile
  28
  29     # Only observe the custom test library.
  30     libname = "libpy-autoloaded-pretty-printers-in-newobjfile-event"
  31     if libname in os.path.basename(objfile.filename):
  32         # If everything went well and the pretty-printer auto-load happened
  33         # before notifying the Python listeners, we expect to see one pretty
  34         # printer, and it must be ours.
  35         all_good = (
  36             len(objfile.pretty_printers) == 1
  37             and objfile.pretty_printers[0].name == "my_library"
  38         )
  39
  40         if all_good:
  41             gdb.parse_and_eval("all_good = 1")
  42         else:
  43             print("Oops, not all good:")
  44             print("pretty printer count: {}".format(len(objfile.pretty_printers)))
  45
  46             for pp in objfile.pretty_printers:
  47                 print("  - {}".format(pp.name))
  48
  49
  50 gdb.events.new_objfile.connect(new_objfile_handler)