gdb/testsuite/gdb.perf/lib/perftest/utils.py

   1 # Copyright (C) 2015-2021 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 import gdb
  17
  18
  19 def safe_execute(command):
  20     """Execute command, ignoring any gdb errors."""
  21     result = None
  22     try:
  23         result = gdb.execute(command, to_string=True)
  24     except gdb.error:
  25         pass
  26     return result
  27
  28
  29 def convert_spaces(file_name):
  30     """Return file_name with all spaces replaced with "-"."""
  31     return file_name.replace(" ", "-")
  32
  33
  34 def select_file(file_name):
  35     """Select a file for debugging.
  36
  37     N.B. This turns confirmation off.
  38     """
  39     safe_execute("set confirm off")
  40     safe_execute("kill")
  41     print("Selecting file %s" % (file_name))
  42     if file_name is None:
  43         gdb.execute("file")
  44     else:
  45         gdb.execute("file %s" % (file_name))
  46
  47
  48 def runto(location):
  49     """Run the program to location.
  50
  51     N.B. This turns confirmation off.
  52     """
  53     safe_execute("set confirm off")
  54     gdb.execute("tbreak %s" % (location))
  55     gdb.execute("run")
  56
  57
  58 def runto_main():
  59     """Run the program to "main".
  60
  61     N.B. This turns confirmation off.
  62     """
  63     runto("main")
  64
  65
  66 def run_n_times(count, func):
  67     """Execute func count times."""
  68     while count > 0:
  69         func()
  70         count -= 1