blob: 464500b70536d6d07d4bccb51dbf427a9a174b96 [file] [log] [blame]
# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Common utilites used by cygprofile scripts.
import logging
import os
import re
START_OF_TEXT_SYMBOL = 'linker_script_start_of_text'
class WarningCollector(object):
"""Collects warnings, but limits the number printed to a set value."""
def __init__(self, max_warnings, level=logging.WARNING):
self._warnings = 0
self._max_warnings = max_warnings
self._level = level
def Write(self, message):
"""Prints a warning if fewer than max_warnings have already been printed."""
if self._warnings < self._max_warnings:
logging.log(self._level, message)
self._warnings += 1
def WriteEnd(self, message):
"""Once all warnings have been printed, use this to print the number of
elided warnings."""
if self._warnings > self._max_warnings:
logging.log(self._level, '%d more warnings for: %s' % (
self._warnings - self._max_warnings, message))
def InvertMapping(x_to_ys):
"""Given a map x -> [y1, y2...] returns inverse mapping y->[x1, x2...]."""
y_to_xs = {}
for x, ys in x_to_ys.items():
for y in ys:
y_to_xs.setdefault(y, []).append(x)
return y_to_xs
def GetObjDir(libchrome):
"""Get the path to the obj directory corresponding to the given libchrome.
Assumes libchrome is in for example .../Release/lib/ and object
files are in .../Release/obj.
# TODO(lizeb,pasko): Pass obj path in explicitly where needed rather than
# relying on the above assumption.
return os.path.abspath(os.path.join(
os.path.dirname(libchrome), '../obj'))