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- https://bugs.python.org/issue21622
-
- Based on the patch from Alpine Linux
- https://git.alpinelinux.org/aports/tree/main/python2/musl-find_library.patch
-
- --- a/Lib/ctypes/util.py
- +++ b/Lib/ctypes/util.py
- @@ -92,6 +92,8 @@ elif sys.platform.startswith("aix"):
- elif os.name == "posix":
- # Andreas Degert's find functions, using gcc, /sbin/ldconfig, objdump
- import re, tempfile
- + from glob import glob
- + musl_ldso = glob('/lib/ld-musl-*.so.1')
-
- def _is_elf(filename):
- "Return True if the given file is an ELF file"
- @@ -265,6 +267,57 @@ elif os.name == "posix":
- def find_library(name, is64 = False):
- return _get_soname(_findLib_crle(name, is64) or _findLib_gcc(name))
-
- + elif musl_ldso and os.path.isfile(musl_ldso[0]):
- +
- + def _is_elf(filepath):
- + try:
- + with open(filepath, 'rb') as fh:
- + return fh.read(4) == b'\x7fELF'
- + except:
- + return False
- +
- + def find_library(name):
- + # absolute name?
- + if os.path.isabs(name):
- + if _is_elf(name):
- + return name
- + else:
- + return None
- +
- + # special case for unified standard libs
- + stdlibs = ['libcrypt.so', 'libdl.so', 'libm.so', 'libpthread.so', 'libresolv.so', 'librt.so', 'libutil.so', 'libxnet.so']
- + if name in stdlibs:
- + name = 'libc.so'
- + elif ('lib' + name + '.so') in stdlibs:
- + name = 'c'
- +
- + paths = []
- + # read path list from /etc/ld-musl-$(ARCH).path
- + path_list = musl_ldso[0].replace('/lib/', '/etc/').replace('.so.1', '.path')
- + try:
- + with open(path_list, 'r') as fh:
- + paths = [path for line in fh for path in line.rstrip('\n').split(':') if path]
- + except:
- + paths = []
- + # default path list if /etc/ld-musl-$(ARCH).path is empty or does not exist
- + if not paths:
- + paths = ['/lib', '/usr/local/lib', '/usr/lib']
- +
- + # prepend paths from LD_LIBRARY_PATH
- + if 'LD_LIBRARY_PATH' in os.environ:
- + paths = os.environ['LD_LIBRARY_PATH'].split(':') + paths
- +
- + for d in paths:
- + f = os.path.join(d, name)
- + if _is_elf(f):
- + return os.path.basename(f)
- +
- + prefix = os.path.join(d, 'lib'+name)
- + for suffix in ['.so', '.so.*']:
- + for f in glob('{0}{1}'.format(prefix, suffix)):
- + if _is_elf(f):
- + return os.path.basename(f)
- +
- else:
-
- def _findSoname_ldconfig(name):
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