[Python-checkins] r53402 - python/trunk/Lib/ctypes/util.py
thomas.heller
python-checkins at python.org
Fri Jan 12 21:17:34 CET 2007
Author: thomas.heller
Date: Fri Jan 12 21:17:34 2007
New Revision: 53402
Modified:
python/trunk/Lib/ctypes/util.py
Log:
patch #1610795: BSD version of ctypes.util.find_library, by Martin
Kammerhofer.
release25-maint backport candidate, but the release manager has to
decide.
Modified: python/trunk/Lib/ctypes/util.py
==============================================================================
--- python/trunk/Lib/ctypes/util.py (original)
+++ python/trunk/Lib/ctypes/util.py Fri Jan 12 21:17:34 2007
@@ -46,24 +46,17 @@
import re, tempfile, errno
def _findLib_gcc(name):
- expr = '[^\(\)\s]*lib%s\.[^\(\)\s]*' % name
+ expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
fdout, ccout = tempfile.mkstemp()
os.close(fdout)
- cmd = 'if type gcc &>/dev/null; then CC=gcc; else CC=cc; fi;' \
+ cmd = 'if type gcc >/dev/null 2>&1; then CC=gcc; else CC=cc; fi;' \
'$CC -Wl,-t -o ' + ccout + ' 2>&1 -l' + name
try:
- fdout, outfile = tempfile.mkstemp()
- os.close(fdout)
- fd = os.popen(cmd)
- trace = fd.read()
- err = fd.close()
+ f = os.popen(cmd)
+ trace = f.read()
+ f.close()
finally:
try:
- os.unlink(outfile)
- except OSError, e:
- if e.errno != errno.ENOENT:
- raise
- try:
os.unlink(ccout)
except OSError, e:
if e.errno != errno.ENOENT:
@@ -73,29 +66,58 @@
return None
return res.group(0)
- def _findLib_ld(name):
- expr = '/[^\(\)\s]*lib%s\.[^\(\)\s]*' % name
- res = re.search(expr, os.popen('/sbin/ldconfig -p 2>/dev/null').read())
- if not res:
- # Hm, this works only for libs needed by the python executable.
- cmd = 'ldd %s 2>/dev/null' % sys.executable
- res = re.search(expr, os.popen(cmd).read())
- if not res:
- return None
- return res.group(0)
-
def _get_soname(f):
+ # assuming GNU binutils / ELF
+ if not f:
+ return None
cmd = "objdump -p -j .dynamic 2>/dev/null " + f
res = re.search(r'\sSONAME\s+([^\s]+)', os.popen(cmd).read())
if not res:
return None
return res.group(1)
- def find_library(name):
- lib = _findLib_ld(name) or _findLib_gcc(name)
- if not lib:
- return None
- return _get_soname(lib)
+ if (sys.platform.startswith("freebsd")
+ or sys.platform.startswith("openbsd")
+ or sys.platform.startswith("dragonfly")):
+
+ def _num_version(libname):
+ # "libxyz.so.MAJOR.MINOR" => [ MAJOR, MINOR ]
+ parts = libname.split(".")
+ nums = []
+ try:
+ while parts:
+ nums.insert(0, int(parts.pop()))
+ except ValueError:
+ pass
+ return nums or [ sys.maxint ]
+
+ def find_library(name):
+ ename = re.escape(name)
+ expr = r':-l%s\.\S+ => \S*/(lib%s\.\S+)' % (ename, ename)
+ res = re.findall(expr,
+ os.popen('/sbin/ldconfig -r 2>/dev/null').read())
+ if not res:
+ return _get_soname(_findLib_gcc(name))
+ res.sort(cmp= lambda x,y: cmp(_num_version(x), _num_version(y)))
+ return res[-1]
+
+ else:
+
+ def _findLib_ldconfig(name):
+ # XXX assuming GLIBC's ldconfig (with option -p)
+ expr = r'/[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
+ res = re.search(expr,
+ os.popen('/sbin/ldconfig -p 2>/dev/null').read())
+ if not res:
+ # Hm, this works only for libs needed by the python executable.
+ cmd = 'ldd %s 2>/dev/null' % sys.executable
+ res = re.search(expr, os.popen(cmd).read())
+ if not res:
+ return None
+ return res.group(0)
+
+ def find_library(name):
+ return _get_soname(_findLib_ldconfig(name) or _findLib_gcc(name))
################################################################
# test code
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