216 lines
6.4 KiB
Python
216 lines
6.4 KiB
Python
"""SCons.Debug
|
|
|
|
Code for debugging SCons internal things. Not everything here is
|
|
guaranteed to work all the way back to Python 1.5.2, and shouldn't be
|
|
needed by most users.
|
|
|
|
"""
|
|
|
|
#
|
|
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included
|
|
# in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
|
|
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
|
|
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
#
|
|
|
|
__revision__ = "src/engine/SCons/Debug.py 3842 2008/12/20 22:59:52 scons"
|
|
|
|
import os
|
|
import string
|
|
import sys
|
|
|
|
# Recipe 14.10 from the Python Cookbook.
|
|
try:
|
|
import weakref
|
|
except ImportError:
|
|
def logInstanceCreation(instance, name=None):
|
|
pass
|
|
else:
|
|
def logInstanceCreation(instance, name=None):
|
|
if name is None:
|
|
name = instance.__class__.__name__
|
|
if not tracked_classes.has_key(name):
|
|
tracked_classes[name] = []
|
|
tracked_classes[name].append(weakref.ref(instance))
|
|
|
|
|
|
|
|
tracked_classes = {}
|
|
|
|
def string_to_classes(s):
|
|
if s == '*':
|
|
c = tracked_classes.keys()
|
|
c.sort()
|
|
return c
|
|
else:
|
|
return string.split(s)
|
|
|
|
def fetchLoggedInstances(classes="*"):
|
|
classnames = string_to_classes(classes)
|
|
return map(lambda cn: (cn, len(tracked_classes[cn])), classnames)
|
|
|
|
def countLoggedInstances(classes, file=sys.stdout):
|
|
for classname in string_to_classes(classes):
|
|
file.write("%s: %d\n" % (classname, len(tracked_classes[classname])))
|
|
|
|
def listLoggedInstances(classes, file=sys.stdout):
|
|
for classname in string_to_classes(classes):
|
|
file.write('\n%s:\n' % classname)
|
|
for ref in tracked_classes[classname]:
|
|
obj = ref()
|
|
if obj is not None:
|
|
file.write(' %s\n' % repr(obj))
|
|
|
|
def dumpLoggedInstances(classes, file=sys.stdout):
|
|
for classname in string_to_classes(classes):
|
|
file.write('\n%s:\n' % classname)
|
|
for ref in tracked_classes[classname]:
|
|
obj = ref()
|
|
if obj is not None:
|
|
file.write(' %s:\n' % obj)
|
|
for key, value in obj.__dict__.items():
|
|
file.write(' %20s : %s\n' % (key, value))
|
|
|
|
|
|
|
|
if sys.platform[:5] == "linux":
|
|
# Linux doesn't actually support memory usage stats from getrusage().
|
|
def memory():
|
|
mstr = open('/proc/self/stat').read()
|
|
mstr = string.split(mstr)[22]
|
|
return int(mstr)
|
|
else:
|
|
try:
|
|
import resource
|
|
except ImportError:
|
|
try:
|
|
import win32process
|
|
import win32api
|
|
except ImportError:
|
|
def memory():
|
|
return 0
|
|
else:
|
|
def memory():
|
|
process_handle = win32api.GetCurrentProcess()
|
|
memory_info = win32process.GetProcessMemoryInfo( process_handle )
|
|
return memory_info['PeakWorkingSetSize']
|
|
else:
|
|
def memory():
|
|
res = resource.getrusage(resource.RUSAGE_SELF)
|
|
return res[4]
|
|
|
|
# returns caller's stack
|
|
def caller_stack(*backlist):
|
|
import traceback
|
|
if not backlist:
|
|
backlist = [0]
|
|
result = []
|
|
for back in backlist:
|
|
tb = traceback.extract_stack(limit=3+back)
|
|
key = tb[0][:3]
|
|
result.append('%s:%d(%s)' % func_shorten(key))
|
|
return result
|
|
|
|
caller_bases = {}
|
|
caller_dicts = {}
|
|
|
|
# trace a caller's stack
|
|
def caller_trace(back=0):
|
|
import traceback
|
|
tb = traceback.extract_stack(limit=3+back)
|
|
tb.reverse()
|
|
callee = tb[1][:3]
|
|
caller_bases[callee] = caller_bases.get(callee, 0) + 1
|
|
for caller in tb[2:]:
|
|
caller = callee + caller[:3]
|
|
try:
|
|
entry = caller_dicts[callee]
|
|
except KeyError:
|
|
caller_dicts[callee] = entry = {}
|
|
entry[caller] = entry.get(caller, 0) + 1
|
|
callee = caller
|
|
|
|
# print a single caller and its callers, if any
|
|
def _dump_one_caller(key, file, level=0):
|
|
l = []
|
|
for c,v in caller_dicts[key].items():
|
|
l.append((-v,c))
|
|
l.sort()
|
|
leader = ' '*level
|
|
for v,c in l:
|
|
file.write("%s %6d %s:%d(%s)\n" % ((leader,-v) + func_shorten(c[-3:])))
|
|
if caller_dicts.has_key(c):
|
|
_dump_one_caller(c, file, level+1)
|
|
|
|
# print each call tree
|
|
def dump_caller_counts(file=sys.stdout):
|
|
keys = caller_bases.keys()
|
|
keys.sort()
|
|
for k in keys:
|
|
file.write("Callers of %s:%d(%s), %d calls:\n"
|
|
% (func_shorten(k) + (caller_bases[k],)))
|
|
_dump_one_caller(k, file)
|
|
|
|
shorten_list = [
|
|
( '/scons/SCons/', 1),
|
|
( '/src/engine/SCons/', 1),
|
|
( '/usr/lib/python', 0),
|
|
]
|
|
|
|
if os.sep != '/':
|
|
def platformize(t):
|
|
return (string.replace(t[0], '/', os.sep), t[1])
|
|
shorten_list = map(platformize, shorten_list)
|
|
del platformize
|
|
|
|
def func_shorten(func_tuple):
|
|
f = func_tuple[0]
|
|
for t in shorten_list:
|
|
i = string.find(f, t[0])
|
|
if i >= 0:
|
|
if t[1]:
|
|
i = i + len(t[0])
|
|
return (f[i:],)+func_tuple[1:]
|
|
return func_tuple
|
|
|
|
|
|
TraceFP = {}
|
|
if sys.platform == 'win32':
|
|
TraceDefault = 'con'
|
|
else:
|
|
TraceDefault = '/dev/tty'
|
|
|
|
def Trace(msg, file=None, mode='w'):
|
|
"""Write a trace message to a file. Whenever a file is specified,
|
|
it becomes the default for the next call to Trace()."""
|
|
global TraceDefault
|
|
if file is None:
|
|
file = TraceDefault
|
|
else:
|
|
TraceDefault = file
|
|
try:
|
|
fp = TraceFP[file]
|
|
except KeyError:
|
|
try:
|
|
fp = TraceFP[file] = open(file, mode)
|
|
except TypeError:
|
|
# Assume we were passed an open file pointer.
|
|
fp = file
|
|
fp.write(msg)
|
|
fp.flush()
|