80 lines
3.1 KiB
Diff
80 lines
3.1 KiB
Diff
Backport https://github.com/python/cpython/commit/82df3b3071bb003247c33eac4670775e9883c994
|
|
and https://github.com/python/cpython/commit/27ac19cca2c639caaf6fedf3632fe6beb265f24f
|
|
|
|
Fixes the check phase of python2Packages.cffi.
|
|
|
|
--- a/Lib/ctypes/util.py
|
|
+++ b/Lib/ctypes/util.py
|
|
@@ -87,6 +87,12 @@ elif os.name == "posix":
|
|
# Andreas Degert's find functions, using gcc, /sbin/ldconfig, objdump
|
|
import re, tempfile, errno
|
|
|
|
+ def _is_elf(filename):
|
|
+ "Return True if the given file is an ELF file"
|
|
+ elf_header = b'\x7fELF'
|
|
+ with open(filename, 'rb') as thefile:
|
|
+ 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
|
|
@@ -110,10 +116,17 @@ elif os.name == "posix":
|
|
# the normal behaviour of GCC if linking fails
|
|
if e.errno != errno.ENOENT:
|
|
raise
|
|
- res = re.search(expr, trace)
|
|
+ res = re.findall(expr, trace)
|
|
if not res:
|
|
return None
|
|
- return res.group(0)
|
|
+
|
|
+ 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 file
|
|
|
|
|
|
if sys.platform == "sunos5":
|
|
@@ -237,8 +250,37 @@ elif os.name == "posix":
|
|
def _findSoname_ldconfig(name):
|
|
return None
|
|
|
|
+ def _findLib_ld(name):
|
|
+ # See issue #9998 for why this is needed
|
|
+ expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name)
|
|
+ cmd = ['ld', '-t']
|
|
+ libpath = os.environ.get('LD_LIBRARY_PATH')
|
|
+ if libpath:
|
|
+ for d in libpath.split(':'):
|
|
+ cmd.extend(['-L', d])
|
|
+ cmd.extend(['-o', os.devnull, '-l%s' % name])
|
|
+ result = None
|
|
+ try:
|
|
+ p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
|
|
+ stderr=subprocess.PIPE,
|
|
+ universal_newlines=True)
|
|
+ out, _ = p.communicate()
|
|
+ res = re.findall(expr, out)
|
|
+ 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 file
|
|
+ except Exception:
|
|
+ pass # result will be None
|
|
+ return result
|
|
+
|
|
def find_library(name):
|
|
- return _findSoname_ldconfig(name) or _get_soname(_findLib_gcc(name))
|
|
+ # See issue #9998
|
|
+ return _findSoname_ldconfig(name) or \
|
|
+ _get_soname(_findLib_gcc(name)) or _get_soname(_findLib_ld(name))
|
|
|
|
################################################################
|
|
# test code
|