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From 084c6dd6352077e64f10cf7aa168f95d800f3819 Mon Sep 17 00:00:00 2001
From: Jonathan Ringer <jonringer117@gmail.com>
Date: Mon, 9 Nov 2020 10:24:35 -0800
Subject: [PATCH] CPython: Don't use ldconfig
---
Lib/ctypes/util.py | 77 ++--------------------------------------------
1 file changed, 2 insertions(+), 75 deletions(-)
diff --git a/Lib/ctypes/util.py b/Lib/ctypes/util.py
index 0c2510e..7fb98af 100644
--- a/Lib/ctypes/util.py
+++ b/Lib/ctypes/util.py
@@ -100,53 +100,7 @@ elif os.name == "posix":
return thefile.read(4) == elf_header
def _findLib_gcc(name):
- # Run GCC's linker with the -t (aka --trace) option and examine the
- # library name it prints out. The GCC command will fail because we
- # haven't supplied a proper program with main(), but that does not
- # matter.
- expr = os.fsencode(r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name))
-
- c_compiler = shutil.which('gcc')
- if not c_compiler:
- c_compiler = shutil.which('cc')
- if not c_compiler:
- # No C compiler available, give up
- return None
-
- temp = tempfile.NamedTemporaryFile()
- try:
- args = [c_compiler, '-Wl,-t', '-o', temp.name, '-l' + name]
-
- env = dict(os.environ)
- env['LC_ALL'] = 'C'
- env['LANG'] = 'C'
- try:
- proc = subprocess.Popen(args,
- stdout=subprocess.PIPE,
- stderr=subprocess.STDOUT,
- env=env)
- except OSError: # E.g. bad executable
- return None
- with proc:
- trace = proc.stdout.read()
- finally:
- try:
- temp.close()
- except FileNotFoundError:
- # Raised if the file was already removed, which is the normal
- # behaviour of GCC if linking fails
- pass
- res = re.findall(expr, trace)
- if not res:
- return None
-
- for file in res:
- # Check if the given file is an elf file: gcc can report
- # some files that are linker scripts and not actual
- # shared objects. See bpo-41976 for more details
- if not _is_elf(file):
- continue
- return os.fsdecode(file)
+ return None
if sys.platform == "sunos5":
@@ -268,34 +222,7 @@ elif os.name == "posix":
else:
def _findSoname_ldconfig(name):
- import struct
- if struct.calcsize('l') == 4:
- machine = os.uname().machine + '-32'
- else:
- machine = os.uname().machine + '-64'
- mach_map = {
- 'x86_64-64': 'libc6,x86-64',
- 'ppc64-64': 'libc6,64bit',
- 'sparc64-64': 'libc6,64bit',
- 's390x-64': 'libc6,64bit',
- 'ia64-64': 'libc6,IA-64',
- }
- abi_type = mach_map.get(machine, 'libc6')
-
- # XXX assuming GLIBC's ldconfig (with option -p)
- regex = r'\s+(lib%s\.[^\s]+)\s+\(%s'
- regex = os.fsencode(regex % (re.escape(name), abi_type))
- try:
- with subprocess.Popen(['/sbin/ldconfig', '-p'],
- stdin=subprocess.DEVNULL,
- stderr=subprocess.DEVNULL,
- stdout=subprocess.PIPE,
- env={'LC_ALL': 'C', 'LANG': 'C'}) as p:
- res = re.search(regex, p.stdout.read())
- if res:
- return os.fsdecode(res.group(1))
- except OSError:
- pass
+ return None
def _findLib_ld(name):
# See issue #9998 for why this is needed
--
2.28.0
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