Closes release blocker #3627.
Merged revisions 65335 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt)
........
r65335 | neal.norwitz | 2008-07-31 10:17:14 -0700 (Thu, 31 Jul 2008) | 1 line
Security patches from Apple: prevent int overflow when allocating memory
........
diff --git a/Lib/test/support.py b/Lib/test/support.py
index d026984..24aff5e 100644
--- a/Lib/test/support.py
+++ b/Lib/test/support.py
@@ -68,6 +68,7 @@
use_resources = None # Flag set to [] by regrtest.py
max_memuse = 0 # Disable bigmem tests (they will still be run with
# small sizes, to make sure they work.)
+real_max_memuse = 0
# _original_stdout is meant to hold stdout at the time regrtest began.
# This may be "the real" stdout, or IDLE's emulation of stdout, or whatever.
@@ -599,12 +600,14 @@
_1M = 1024*1024
_1G = 1024 * _1M
_2G = 2 * _1G
+_4G = 4 * _1G
MAX_Py_ssize_t = sys.maxsize
def set_memlimit(limit):
import re
global max_memuse
+ global real_max_memuse
sizes = {
'k': 1024,
'm': _1M,
@@ -616,6 +619,7 @@
if m is None:
raise ValueError('Invalid memory limit %r' % (limit,))
memlimit = int(float(m.group(1)) * sizes[m.group(3).lower()])
+ real_max_memuse = memlimit
if memlimit > MAX_Py_ssize_t:
memlimit = MAX_Py_ssize_t
if memlimit < _2G - 1:
@@ -661,6 +665,27 @@
return wrapper
return decorator
+def precisionbigmemtest(size, memuse, overhead=5*_1M):
+ def decorator(f):
+ def wrapper(self):
+ if not real_max_memuse:
+ maxsize = 5147
+ else:
+ maxsize = size
+
+ if real_max_memuse and real_max_memuse < maxsize * memuse:
+ if verbose:
+ sys.stderr.write("Skipping %s because of memory "
+ "constraint\n" % (f.__name__,))
+ return
+
+ return f(self, maxsize)
+ wrapper.size = size
+ wrapper.memuse = memuse
+ wrapper.overhead = overhead
+ return wrapper
+ return decorator
+
def bigaddrspacetest(f):
"""Decorator for tests that fill the address space."""
def wrapper(self):