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

   1 # Copyright (C) 2015 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     print ("Selecting file %s" % (file_name))
  40     if file_name is None:
  41         gdb.execute("file")
  42     else:
  43         gdb.execute("file %s" % (file_name))
  44
  45
  46 def runto(location):
  47     """Run the program to location.
  48
  49     N.B. This turns confirmation off.
  50     """
  51     safe_execute("set confirm off")
  52     gdb.execute("tbreak %s" % (location))
  53     gdb.execute("run")
  54
  55
  56 def runto_main():
  57     """Run the program to "main".
  58
  59     N.B. This turns confirmation off.
  60     """
  61     runto("main")
  62
  63
  64 def run_n_times(count, func):
  65     """Execute func count times."""
  66     while count > 0:
  67         func()
  68         count -= 1