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

   1 # Copyright (C) 2015-2016 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 def safe_execute(command):
  19     """Execute command, ignoring any gdb errors."""
  20     result = None
  21     try:
  22         result = gdb.execute(command, to_string=True)
  23     except gdb.error:
  24         pass
  25     return result
  26
  27
  28 def convert_spaces(file_name):
  29     """Return file_name with all spaces replaced with "-"."""
  30     return file_name.replace(" ", "-")
  31
  32
  33 def select_file(file_name):
  34     """Select a file for debugging.
  35
  36     N.B. This turns confirmation off.
  37     """
  38     safe_execute("set confirm off")
  39     safe_execute("kill")
  40     print ("Selecting file %s" % (file_name))
  41     if file_name is None:
  42         gdb.execute("file")
  43     else:
  44         gdb.execute("file %s" % (file_name))
  45
  46
  47 def runto(location):
  48     """Run the program to location.
  49
  50     N.B. This turns confirmation off.
  51     """
  52     safe_execute("set confirm off")
  53     gdb.execute("tbreak %s" % (location))
  54     gdb.execute("run")
  55
  56
  57 def runto_main():
  58     """Run the program to "main".
  59
  60     N.B. This turns confirmation off.
  61     """
  62     runto("main")
  63
  64
  65 def run_n_times(count, func):
  66     """Execute func count times."""
  67     while count > 0:
  68         func()
  69         count -= 1