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