Update prebuilt Clang to r416183b from Android.
https://android.googlesource.com/platform/prebuilts/clang/host/
linux-x86/+/06a71ddac05c22edb2d10b590e1769b3f8619bef
clang 12.0.5 (based on r416183b) from build 7284624.
Change-Id: I277a316abcf47307562d8b748b84870f31a72866
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/linux-x64/clang/python3/lib/python3.9/posixpath.py b/linux-x64/clang/python3/lib/python3.9/posixpath.py
new file mode 100644
index 0000000..ecb4e5a
--- /dev/null
+++ b/linux-x64/clang/python3/lib/python3.9/posixpath.py
@@ -0,0 +1,525 @@
+"""Common operations on Posix pathnames.
+
+Instead of importing this module directly, import os and refer to
+this module as os.path. The "os.path" name is an alias for this
+module on Posix systems; on other systems (e.g. Windows),
+os.path provides the same operations in a manner specific to that
+platform, and is an alias to another module (e.g. ntpath).
+
+Some of this can actually be useful on non-Posix systems too, e.g.
+for manipulation of the pathname component of URLs.
+"""
+
+# Strings representing various path-related bits and pieces.
+# These are primarily for export; internally, they are hardcoded.
+# Should be set before imports for resolving cyclic dependency.
+curdir = '.'
+pardir = '..'
+extsep = '.'
+sep = '/'
+pathsep = ':'
+defpath = '/bin:/usr/bin'
+altsep = None
+devnull = '/dev/null'
+
+import os
+import sys
+import stat
+import genericpath
+from genericpath import *
+
+__all__ = ["normcase","isabs","join","splitdrive","split","splitext",
+ "basename","dirname","commonprefix","getsize","getmtime",
+ "getatime","getctime","islink","exists","lexists","isdir","isfile",
+ "ismount", "expanduser","expandvars","normpath","abspath",
+ "samefile","sameopenfile","samestat",
+ "curdir","pardir","sep","pathsep","defpath","altsep","extsep",
+ "devnull","realpath","supports_unicode_filenames","relpath",
+ "commonpath"]
+
+
+def _get_sep(path):
+ if isinstance(path, bytes):
+ return b'/'
+ else:
+ return '/'
+
+# Normalize the case of a pathname. Trivial in Posix, string.lower on Mac.
+# On MS-DOS this may also turn slashes into backslashes; however, other
+# normalizations (such as optimizing '../' away) are not allowed
+# (another function should be defined to do that).
+
+def normcase(s):
+ """Normalize case of pathname. Has no effect under Posix"""
+ return os.fspath(s)
+
+
+# Return whether a path is absolute.
+# Trivial in Posix, harder on the Mac or MS-DOS.
+
+def isabs(s):
+ """Test whether a path is absolute"""
+ s = os.fspath(s)
+ sep = _get_sep(s)
+ return s.startswith(sep)
+
+
+# Join pathnames.
+# Ignore the previous parts if a part is absolute.
+# Insert a '/' unless the first part is empty or already ends in '/'.
+
+def join(a, *p):
+ """Join two or more pathname components, inserting '/' as needed.
+ If any component is an absolute path, all previous path components
+ will be discarded. An empty last part will result in a path that
+ ends with a separator."""
+ a = os.fspath(a)
+ sep = _get_sep(a)
+ path = a
+ try:
+ if not p:
+ path[:0] + sep #23780: Ensure compatible data type even if p is null.
+ for b in map(os.fspath, p):
+ if b.startswith(sep):
+ path = b
+ elif not path or path.endswith(sep):
+ path += b
+ else:
+ path += sep + b
+ except (TypeError, AttributeError, BytesWarning):
+ genericpath._check_arg_types('join', a, *p)
+ raise
+ return path
+
+
+# Split a path in head (everything up to the last '/') and tail (the
+# rest). If the path ends in '/', tail will be empty. If there is no
+# '/' in the path, head will be empty.
+# Trailing '/'es are stripped from head unless it is the root.
+
+def split(p):
+ """Split a pathname. Returns tuple "(head, tail)" where "tail" is
+ everything after the final slash. Either part may be empty."""
+ p = os.fspath(p)
+ sep = _get_sep(p)
+ i = p.rfind(sep) + 1
+ head, tail = p[:i], p[i:]
+ if head and head != sep*len(head):
+ head = head.rstrip(sep)
+ return head, tail
+
+
+# Split a path in root and extension.
+# The extension is everything starting at the last dot in the last
+# pathname component; the root is everything before that.
+# It is always true that root + ext == p.
+
+def splitext(p):
+ p = os.fspath(p)
+ if isinstance(p, bytes):
+ sep = b'/'
+ extsep = b'.'
+ else:
+ sep = '/'
+ extsep = '.'
+ return genericpath._splitext(p, sep, None, extsep)
+splitext.__doc__ = genericpath._splitext.__doc__
+
+# Split a pathname into a drive specification and the rest of the
+# path. Useful on DOS/Windows/NT; on Unix, the drive is always empty.
+
+def splitdrive(p):
+ """Split a pathname into drive and path. On Posix, drive is always
+ empty."""
+ p = os.fspath(p)
+ return p[:0], p
+
+
+# Return the tail (basename) part of a path, same as split(path)[1].
+
+def basename(p):
+ """Returns the final component of a pathname"""
+ p = os.fspath(p)
+ sep = _get_sep(p)
+ i = p.rfind(sep) + 1
+ return p[i:]
+
+
+# Return the head (dirname) part of a path, same as split(path)[0].
+
+def dirname(p):
+ """Returns the directory component of a pathname"""
+ p = os.fspath(p)
+ sep = _get_sep(p)
+ i = p.rfind(sep) + 1
+ head = p[:i]
+ if head and head != sep*len(head):
+ head = head.rstrip(sep)
+ return head
+
+
+# Is a path a symbolic link?
+# This will always return false on systems where os.lstat doesn't exist.
+
+def islink(path):
+ """Test whether a path is a symbolic link"""
+ try:
+ st = os.lstat(path)
+ except (OSError, ValueError, AttributeError):
+ return False
+ return stat.S_ISLNK(st.st_mode)
+
+# Being true for dangling symbolic links is also useful.
+
+def lexists(path):
+ """Test whether a path exists. Returns True for broken symbolic links"""
+ try:
+ os.lstat(path)
+ except (OSError, ValueError):
+ return False
+ return True
+
+
+# Is a path a mount point?
+# (Does this work for all UNIXes? Is it even guaranteed to work by Posix?)
+
+def ismount(path):
+ """Test whether a path is a mount point"""
+ try:
+ s1 = os.lstat(path)
+ except (OSError, ValueError):
+ # It doesn't exist -- so not a mount point. :-)
+ return False
+ else:
+ # A symlink can never be a mount point
+ if stat.S_ISLNK(s1.st_mode):
+ return False
+
+ if isinstance(path, bytes):
+ parent = join(path, b'..')
+ else:
+ parent = join(path, '..')
+ parent = realpath(parent)
+ try:
+ s2 = os.lstat(parent)
+ except (OSError, ValueError):
+ return False
+
+ dev1 = s1.st_dev
+ dev2 = s2.st_dev
+ if dev1 != dev2:
+ return True # path/.. on a different device as path
+ ino1 = s1.st_ino
+ ino2 = s2.st_ino
+ if ino1 == ino2:
+ return True # path/.. is the same i-node as path
+ return False
+
+
+# Expand paths beginning with '~' or '~user'.
+# '~' means $HOME; '~user' means that user's home directory.
+# If the path doesn't begin with '~', or if the user or $HOME is unknown,
+# the path is returned unchanged (leaving error reporting to whatever
+# function is called with the expanded path as argument).
+# See also module 'glob' for expansion of *, ? and [...] in pathnames.
+# (A function should also be defined to do full *sh-style environment
+# variable expansion.)
+
+def expanduser(path):
+ """Expand ~ and ~user constructions. If user or $HOME is unknown,
+ do nothing."""
+ path = os.fspath(path)
+ if isinstance(path, bytes):
+ tilde = b'~'
+ else:
+ tilde = '~'
+ if not path.startswith(tilde):
+ return path
+ sep = _get_sep(path)
+ i = path.find(sep, 1)
+ if i < 0:
+ i = len(path)
+ if i == 1:
+ if 'HOME' not in os.environ:
+ import pwd
+ try:
+ userhome = pwd.getpwuid(os.getuid()).pw_dir
+ except KeyError:
+ # bpo-10496: if the current user identifier doesn't exist in the
+ # password database, return the path unchanged
+ return path
+ else:
+ userhome = os.environ['HOME']
+ else:
+ import pwd
+ name = path[1:i]
+ if isinstance(name, bytes):
+ name = str(name, 'ASCII')
+ try:
+ pwent = pwd.getpwnam(name)
+ except KeyError:
+ # bpo-10496: if the user name from the path doesn't exist in the
+ # password database, return the path unchanged
+ return path
+ userhome = pwent.pw_dir
+ if isinstance(path, bytes):
+ userhome = os.fsencode(userhome)
+ root = b'/'
+ else:
+ root = '/'
+ userhome = userhome.rstrip(root)
+ return (userhome + path[i:]) or root
+
+
+# Expand paths containing shell variable substitutions.
+# This expands the forms $variable and ${variable} only.
+# Non-existent variables are left unchanged.
+
+_varprog = None
+_varprogb = None
+
+def expandvars(path):
+ """Expand shell variables of form $var and ${var}. Unknown variables
+ are left unchanged."""
+ path = os.fspath(path)
+ global _varprog, _varprogb
+ if isinstance(path, bytes):
+ if b'$' not in path:
+ return path
+ if not _varprogb:
+ import re
+ _varprogb = re.compile(br'\$(\w+|\{[^}]*\})', re.ASCII)
+ search = _varprogb.search
+ start = b'{'
+ end = b'}'
+ environ = getattr(os, 'environb', None)
+ else:
+ if '$' not in path:
+ return path
+ if not _varprog:
+ import re
+ _varprog = re.compile(r'\$(\w+|\{[^}]*\})', re.ASCII)
+ search = _varprog.search
+ start = '{'
+ end = '}'
+ environ = os.environ
+ i = 0
+ while True:
+ m = search(path, i)
+ if not m:
+ break
+ i, j = m.span(0)
+ name = m.group(1)
+ if name.startswith(start) and name.endswith(end):
+ name = name[1:-1]
+ try:
+ if environ is None:
+ value = os.fsencode(os.environ[os.fsdecode(name)])
+ else:
+ value = environ[name]
+ except KeyError:
+ i = j
+ else:
+ tail = path[j:]
+ path = path[:i] + value
+ i = len(path)
+ path += tail
+ return path
+
+
+# Normalize a path, e.g. A//B, A/./B and A/foo/../B all become A/B.
+# It should be understood that this may change the meaning of the path
+# if it contains symbolic links!
+
+def normpath(path):
+ """Normalize path, eliminating double slashes, etc."""
+ path = os.fspath(path)
+ if isinstance(path, bytes):
+ sep = b'/'
+ empty = b''
+ dot = b'.'
+ dotdot = b'..'
+ else:
+ sep = '/'
+ empty = ''
+ dot = '.'
+ dotdot = '..'
+ if path == empty:
+ return dot
+ initial_slashes = path.startswith(sep)
+ # POSIX allows one or two initial slashes, but treats three or more
+ # as single slash.
+ if (initial_slashes and
+ path.startswith(sep*2) and not path.startswith(sep*3)):
+ initial_slashes = 2
+ comps = path.split(sep)
+ new_comps = []
+ for comp in comps:
+ if comp in (empty, dot):
+ continue
+ if (comp != dotdot or (not initial_slashes and not new_comps) or
+ (new_comps and new_comps[-1] == dotdot)):
+ new_comps.append(comp)
+ elif new_comps:
+ new_comps.pop()
+ comps = new_comps
+ path = sep.join(comps)
+ if initial_slashes:
+ path = sep*initial_slashes + path
+ return path or dot
+
+
+def abspath(path):
+ """Return an absolute path."""
+ path = os.fspath(path)
+ if not isabs(path):
+ if isinstance(path, bytes):
+ cwd = os.getcwdb()
+ else:
+ cwd = os.getcwd()
+ path = join(cwd, path)
+ return normpath(path)
+
+
+# Return a canonical path (i.e. the absolute location of a file on the
+# filesystem).
+
+def realpath(filename):
+ """Return the canonical path of the specified filename, eliminating any
+symbolic links encountered in the path."""
+ filename = os.fspath(filename)
+ path, ok = _joinrealpath(filename[:0], filename, {})
+ return abspath(path)
+
+# Join two paths, normalizing and eliminating any symbolic links
+# encountered in the second path.
+def _joinrealpath(path, rest, seen):
+ if isinstance(path, bytes):
+ sep = b'/'
+ curdir = b'.'
+ pardir = b'..'
+ else:
+ sep = '/'
+ curdir = '.'
+ pardir = '..'
+
+ if isabs(rest):
+ rest = rest[1:]
+ path = sep
+
+ while rest:
+ name, _, rest = rest.partition(sep)
+ if not name or name == curdir:
+ # current dir
+ continue
+ if name == pardir:
+ # parent dir
+ if path:
+ path, name = split(path)
+ if name == pardir:
+ path = join(path, pardir, pardir)
+ else:
+ path = pardir
+ continue
+ newpath = join(path, name)
+ if not islink(newpath):
+ path = newpath
+ continue
+ # Resolve the symbolic link
+ if newpath in seen:
+ # Already seen this path
+ path = seen[newpath]
+ if path is not None:
+ # use cached value
+ continue
+ # The symlink is not resolved, so we must have a symlink loop.
+ # Return already resolved part + rest of the path unchanged.
+ return join(newpath, rest), False
+ seen[newpath] = None # not resolved symlink
+ path, ok = _joinrealpath(path, os.readlink(newpath), seen)
+ if not ok:
+ return join(path, rest), False
+ seen[newpath] = path # resolved symlink
+
+ return path, True
+
+
+supports_unicode_filenames = (sys.platform == 'darwin')
+
+def relpath(path, start=None):
+ """Return a relative version of a path"""
+
+ if not path:
+ raise ValueError("no path specified")
+
+ path = os.fspath(path)
+ if isinstance(path, bytes):
+ curdir = b'.'
+ sep = b'/'
+ pardir = b'..'
+ else:
+ curdir = '.'
+ sep = '/'
+ pardir = '..'
+
+ if start is None:
+ start = curdir
+ else:
+ start = os.fspath(start)
+
+ try:
+ start_list = [x for x in abspath(start).split(sep) if x]
+ path_list = [x for x in abspath(path).split(sep) if x]
+ # Work out how much of the filepath is shared by start and path.
+ i = len(commonprefix([start_list, path_list]))
+
+ rel_list = [pardir] * (len(start_list)-i) + path_list[i:]
+ if not rel_list:
+ return curdir
+ return join(*rel_list)
+ except (TypeError, AttributeError, BytesWarning, DeprecationWarning):
+ genericpath._check_arg_types('relpath', path, start)
+ raise
+
+
+# Return the longest common sub-path of the sequence of paths given as input.
+# The paths are not normalized before comparing them (this is the
+# responsibility of the caller). Any trailing separator is stripped from the
+# returned path.
+
+def commonpath(paths):
+ """Given a sequence of path names, returns the longest common sub-path."""
+
+ if not paths:
+ raise ValueError('commonpath() arg is an empty sequence')
+
+ paths = tuple(map(os.fspath, paths))
+ if isinstance(paths[0], bytes):
+ sep = b'/'
+ curdir = b'.'
+ else:
+ sep = '/'
+ curdir = '.'
+
+ try:
+ split_paths = [path.split(sep) for path in paths]
+
+ try:
+ isabs, = set(p[:1] == sep for p in paths)
+ except ValueError:
+ raise ValueError("Can't mix absolute and relative paths") from None
+
+ split_paths = [[c for c in s if c and c != curdir] for s in split_paths]
+ s1 = min(split_paths)
+ s2 = max(split_paths)
+ common = s1
+ for i, c in enumerate(s1):
+ if c != s2[i]:
+ common = s1[:i]
+ break
+
+ prefix = sep if isabs else sep[:0]
+ return prefix + sep.join(common)
+ except (TypeError, AttributeError):
+ genericpath._check_arg_types('commonpath', *paths)
+ raise