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/linecache.py b/linux-x64/clang/python3/lib/python3.9/linecache.py
new file mode 100644
index 0000000..fa5dbd0
--- /dev/null
+++ b/linux-x64/clang/python3/lib/python3.9/linecache.py
@@ -0,0 +1,177 @@
+"""Cache lines from Python source files.
+
+This is intended to read lines from modules imported -- hence if a filename
+is not found, it will look down the module search path for a file by
+that name.
+"""
+
+import functools
+import sys
+import os
+import tokenize
+
+__all__ = ["getline", "clearcache", "checkcache", "lazycache"]
+
+
+# The cache. Maps filenames to either a thunk which will provide source code,
+# or a tuple (size, mtime, lines, fullname) once loaded.
+cache = {}
+
+
+def clearcache():
+ """Clear the cache entirely."""
+ cache.clear()
+
+
+def getline(filename, lineno, module_globals=None):
+ """Get a line for a Python source file from the cache.
+ Update the cache if it doesn't contain an entry for this file already."""
+
+ lines = getlines(filename, module_globals)
+ if 1 <= lineno <= len(lines):
+ return lines[lineno - 1]
+ return ''
+
+
+def getlines(filename, module_globals=None):
+ """Get the lines for a Python source file from the cache.
+ Update the cache if it doesn't contain an entry for this file already."""
+
+ if filename in cache:
+ entry = cache[filename]
+ if len(entry) != 1:
+ return cache[filename][2]
+
+ try:
+ return updatecache(filename, module_globals)
+ except MemoryError:
+ clearcache()
+ return []
+
+
+def checkcache(filename=None):
+ """Discard cache entries that are out of date.
+ (This is not checked upon each call!)"""
+
+ if filename is None:
+ filenames = list(cache.keys())
+ elif filename in cache:
+ filenames = [filename]
+ else:
+ return
+
+ for filename in filenames:
+ entry = cache[filename]
+ if len(entry) == 1:
+ # lazy cache entry, leave it lazy.
+ continue
+ size, mtime, lines, fullname = entry
+ if mtime is None:
+ continue # no-op for files loaded via a __loader__
+ try:
+ stat = os.stat(fullname)
+ except OSError:
+ cache.pop(filename, None)
+ continue
+ if size != stat.st_size or mtime != stat.st_mtime:
+ cache.pop(filename, None)
+
+
+def updatecache(filename, module_globals=None):
+ """Update a cache entry and return its list of lines.
+ If something's wrong, print a message, discard the cache entry,
+ and return an empty list."""
+
+ if filename in cache:
+ if len(cache[filename]) != 1:
+ cache.pop(filename, None)
+ if not filename or (filename.startswith('<') and filename.endswith('>')):
+ return []
+
+ fullname = filename
+ try:
+ stat = os.stat(fullname)
+ except OSError:
+ basename = filename
+
+ # Realise a lazy loader based lookup if there is one
+ # otherwise try to lookup right now.
+ if lazycache(filename, module_globals):
+ try:
+ data = cache[filename][0]()
+ except (ImportError, OSError):
+ pass
+ else:
+ if data is None:
+ # No luck, the PEP302 loader cannot find the source
+ # for this module.
+ return []
+ cache[filename] = (
+ len(data),
+ None,
+ [line + '\n' for line in data.splitlines()],
+ fullname
+ )
+ return cache[filename][2]
+
+ # Try looking through the module search path, which is only useful
+ # when handling a relative filename.
+ if os.path.isabs(filename):
+ return []
+
+ for dirname in sys.path:
+ try:
+ fullname = os.path.join(dirname, basename)
+ except (TypeError, AttributeError):
+ # Not sufficiently string-like to do anything useful with.
+ continue
+ try:
+ stat = os.stat(fullname)
+ break
+ except OSError:
+ pass
+ else:
+ return []
+ try:
+ with tokenize.open(fullname) as fp:
+ lines = fp.readlines()
+ except OSError:
+ return []
+ if lines and not lines[-1].endswith('\n'):
+ lines[-1] += '\n'
+ size, mtime = stat.st_size, stat.st_mtime
+ cache[filename] = size, mtime, lines, fullname
+ return lines
+
+
+def lazycache(filename, module_globals):
+ """Seed the cache for filename with module_globals.
+
+ The module loader will be asked for the source only when getlines is
+ called, not immediately.
+
+ If there is an entry in the cache already, it is not altered.
+
+ :return: True if a lazy load is registered in the cache,
+ otherwise False. To register such a load a module loader with a
+ get_source method must be found, the filename must be a cachable
+ filename, and the filename must not be already cached.
+ """
+ if filename in cache:
+ if len(cache[filename]) == 1:
+ return True
+ else:
+ return False
+ if not filename or (filename.startswith('<') and filename.endswith('>')):
+ return False
+ # Try for a __loader__, if available
+ if module_globals and '__loader__' in module_globals:
+ name = module_globals.get('__name__')
+ loader = module_globals['__loader__']
+ get_source = getattr(loader, 'get_source', None)
+
+ if name and get_source:
+ get_lines = functools.partial(get_source, name)
+ cache[filename] = (get_lines,)
+ return True
+ return False