pyrox.dev
1From 66f492d2eda94bd64db833839a325caf6ba0fed5 Mon Sep 17 00:00:00 2001
2From: Greg Roodt <greg@canva.com>
3Date: Wed, 9 Dec 2020 17:59:24 +1100
4Subject: [PATCH] Don't use ldconfig
5
6---
7 Lib/ctypes/util.py | 77 ++--------------------------------------------
8 1 file changed, 2 insertions(+), 75 deletions(-)
9
10diff --git a/Lib/ctypes/util.py b/Lib/ctypes/util.py
11index 0c2510e161..7fb98af308 100644
12--- a/Lib/ctypes/util.py
13+++ b/Lib/ctypes/util.py
14@@ -100,53 +100,7 @@ elif os.name == "posix":
15 return thefile.read(4) == elf_header
16
17 def _findLib_gcc(name):
18- # Run GCC's linker with the -t (aka --trace) option and examine the
19- # library name it prints out. The GCC command will fail because we
20- # haven't supplied a proper program with main(), but that does not
21- # matter.
22- expr = os.fsencode(r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name))
23-
24- c_compiler = shutil.which('gcc')
25- if not c_compiler:
26- c_compiler = shutil.which('cc')
27- if not c_compiler:
28- # No C compiler available, give up
29- return None
30-
31- temp = tempfile.NamedTemporaryFile()
32- try:
33- args = [c_compiler, '-Wl,-t', '-o', temp.name, '-l' + name]
34-
35- env = dict(os.environ)
36- env['LC_ALL'] = 'C'
37- env['LANG'] = 'C'
38- try:
39- proc = subprocess.Popen(args,
40- stdout=subprocess.PIPE,
41- stderr=subprocess.STDOUT,
42- env=env)
43- except OSError: # E.g. bad executable
44- return None
45- with proc:
46- trace = proc.stdout.read()
47- finally:
48- try:
49- temp.close()
50- except FileNotFoundError:
51- # Raised if the file was already removed, which is the normal
52- # behaviour of GCC if linking fails
53- pass
54- res = re.findall(expr, trace)
55- if not res:
56- return None
57-
58- for file in res:
59- # Check if the given file is an elf file: gcc can report
60- # some files that are linker scripts and not actual
61- # shared objects. See bpo-41976 for more details
62- if not _is_elf(file):
63- continue
64- return os.fsdecode(file)
65+ return None
66
67
68 if sys.platform == "sunos5":
69@@ -268,34 +222,7 @@ elif os.name == "posix":
70 else:
71
72 def _findSoname_ldconfig(name):
73- import struct
74- if struct.calcsize('l') == 4:
75- machine = os.uname().machine + '-32'
76- else:
77- machine = os.uname().machine + '-64'
78- mach_map = {
79- 'x86_64-64': 'libc6,x86-64',
80- 'ppc64-64': 'libc6,64bit',
81- 'sparc64-64': 'libc6,64bit',
82- 's390x-64': 'libc6,64bit',
83- 'ia64-64': 'libc6,IA-64',
84- }
85- abi_type = mach_map.get(machine, 'libc6')
86-
87- # XXX assuming GLIBC's ldconfig (with option -p)
88- regex = r'\s+(lib%s\.[^\s]+)\s+\(%s'
89- regex = os.fsencode(regex % (re.escape(name), abi_type))
90- try:
91- with subprocess.Popen(['/sbin/ldconfig', '-p'],
92- stdin=subprocess.DEVNULL,
93- stderr=subprocess.DEVNULL,
94- stdout=subprocess.PIPE,
95- env={'LC_ALL': 'C', 'LANG': 'C'}) as p:
96- res = re.search(regex, p.stdout.read())
97- if res:
98- return os.fsdecode(res.group(1))
99- except OSError:
100- pass
101+ return None
102
103 def _findLib_ld(name):
104 # See issue #9998 for why this is needed
105--
1062.24.3 (Apple Git-128)