[Feature][YUKUAI_patch]add 18.02 code

Only Configure: No
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I7f71153004f10fc0ea5adfa083866aaeeb1053ac
diff --git a/rootfs/usr/lib/python3.8/distutils/spawn.py b/rootfs/usr/lib/python3.8/distutils/spawn.py
new file mode 100644
index 0000000..ceb9494
--- /dev/null
+++ b/rootfs/usr/lib/python3.8/distutils/spawn.py
@@ -0,0 +1,203 @@
+"""distutils.spawn
+
+Provides the 'spawn()' function, a front-end to various platform-
+specific functions for launching another program in a sub-process.
+Also provides the 'find_executable()' to search the path for a given
+executable name.
+"""
+
+import sys
+import os
+
+from distutils.errors import DistutilsPlatformError, DistutilsExecError
+from distutils.debug import DEBUG
+from distutils import log
+
+def spawn(cmd, search_path=1, verbose=0, dry_run=0):
+    """Run another program, specified as a command list 'cmd', in a new process.
+
+    'cmd' is just the argument list for the new process, ie.
+    cmd[0] is the program to run and cmd[1:] are the rest of its arguments.
+    There is no way to run a program with a name different from that of its
+    executable.
+
+    If 'search_path' is true (the default), the system's executable
+    search path will be used to find the program; otherwise, cmd[0]
+    must be the exact path to the executable.  If 'dry_run' is true,
+    the command will not actually be run.
+
+    Raise DistutilsExecError if running the program fails in any way; just
+    return on success.
+    """
+    # cmd is documented as a list, but just in case some code passes a tuple
+    # in, protect our %-formatting code against horrible death
+    cmd = list(cmd)
+    if os.name == 'posix':
+        _spawn_posix(cmd, search_path, dry_run=dry_run)
+    elif os.name == 'nt':
+        _spawn_nt(cmd, search_path, dry_run=dry_run)
+    else:
+        raise DistutilsPlatformError(
+              "don't know how to spawn programs on platform '%s'" % os.name)
+
+def _nt_quote_args(args):
+    """Quote command-line arguments for DOS/Windows conventions.
+
+    Just wraps every argument which contains blanks in double quotes, and
+    returns a new argument list.
+    """
+    # XXX this doesn't seem very robust to me -- but if the Windows guys
+    # say it'll work, I guess I'll have to accept it.  (What if an arg
+    # contains quotes?  What other magic characters, other than spaces,
+    # have to be escaped?  Is there an escaping mechanism other than
+    # quoting?)
+    for i, arg in enumerate(args):
+        if ' ' in arg:
+            args[i] = '"%s"' % arg
+    return args
+
+def _spawn_nt(cmd, search_path=1, verbose=0, dry_run=0):
+    executable = cmd[0]
+    cmd = _nt_quote_args(cmd)
+    if search_path:
+        # either we find one or it stays the same
+        executable = find_executable(executable) or executable
+    log.info(' '.join([executable] + cmd[1:]))
+    if not dry_run:
+        # spawn for NT requires a full path to the .exe
+        try:
+            rc = os.spawnv(os.P_WAIT, executable, cmd)
+        except OSError as exc:
+            # this seems to happen when the command isn't found
+            if not DEBUG:
+                cmd = executable
+            raise DistutilsExecError(
+                  "command %r failed: %s" % (cmd, exc.args[-1]))
+        if rc != 0:
+            # and this reflects the command running but failing
+            if not DEBUG:
+                cmd = executable
+            raise DistutilsExecError(
+                  "command %r failed with exit status %d" % (cmd, rc))
+
+if sys.platform == 'darwin':
+    _cfg_target = None
+    _cfg_target_split = None
+
+def _spawn_posix(cmd, search_path=1, verbose=0, dry_run=0):
+    log.info(' '.join(cmd))
+    if dry_run:
+        return
+    executable = cmd[0]
+    exec_fn = search_path and os.execvp or os.execv
+    env = None
+    if sys.platform == 'darwin':
+        global _cfg_target, _cfg_target_split
+        if _cfg_target is None:
+            from distutils import sysconfig
+            _cfg_target = sysconfig.get_config_var(
+                                  'MACOSX_DEPLOYMENT_TARGET') or ''
+            if _cfg_target:
+                _cfg_target_split = [int(x) for x in _cfg_target.split('.')]
+        if _cfg_target:
+            # ensure that the deployment target of build process is not less
+            # than that used when the interpreter was built. This ensures
+            # extension modules are built with correct compatibility values
+            cur_target = os.environ.get('MACOSX_DEPLOYMENT_TARGET', _cfg_target)
+            if _cfg_target_split > [int(x) for x in cur_target.split('.')]:
+                my_msg = ('$MACOSX_DEPLOYMENT_TARGET mismatch: '
+                          'now "%s" but "%s" during configure'
+                                % (cur_target, _cfg_target))
+                raise DistutilsPlatformError(my_msg)
+            env = dict(os.environ,
+                       MACOSX_DEPLOYMENT_TARGET=cur_target)
+            exec_fn = search_path and os.execvpe or os.execve
+    pid = os.fork()
+    if pid == 0: # in the child
+        try:
+            if env is None:
+                exec_fn(executable, cmd)
+            else:
+                exec_fn(executable, cmd, env)
+        except OSError as e:
+            if not DEBUG:
+                cmd = executable
+            sys.stderr.write("unable to execute %r: %s\n"
+                             % (cmd, e.strerror))
+            os._exit(1)
+
+        if not DEBUG:
+            cmd = executable
+        sys.stderr.write("unable to execute %r for unknown reasons" % cmd)
+        os._exit(1)
+    else: # in the parent
+        # Loop until the child either exits or is terminated by a signal
+        # (ie. keep waiting if it's merely stopped)
+        while True:
+            try:
+                pid, status = os.waitpid(pid, 0)
+            except OSError as exc:
+                if not DEBUG:
+                    cmd = executable
+                raise DistutilsExecError(
+                      "command %r failed: %s" % (cmd, exc.args[-1]))
+            if os.WIFSIGNALED(status):
+                if not DEBUG:
+                    cmd = executable
+                raise DistutilsExecError(
+                      "command %r terminated by signal %d"
+                      % (cmd, os.WTERMSIG(status)))
+            elif os.WIFEXITED(status):
+                exit_status = os.WEXITSTATUS(status)
+                if exit_status == 0:
+                    return   # hey, it succeeded!
+                else:
+                    if not DEBUG:
+                        cmd = executable
+                    raise DistutilsExecError(
+                          "command %r failed with exit status %d"
+                          % (cmd, exit_status))
+            elif os.WIFSTOPPED(status):
+                continue
+            else:
+                if not DEBUG:
+                    cmd = executable
+                raise DistutilsExecError(
+                      "unknown error executing %r: termination status %d"
+                      % (cmd, status))
+
+def find_executable(executable, path=None):
+    """Tries to find 'executable' in the directories listed in 'path'.
+
+    A string listing directories separated by 'os.pathsep'; defaults to
+    os.environ['PATH'].  Returns the complete filename or None if not found.
+    """
+    _, ext = os.path.splitext(executable)
+    if (sys.platform == 'win32') and (ext != '.exe'):
+        executable = executable + '.exe'
+
+    if os.path.isfile(executable):
+        return executable
+
+    if path is None:
+        path = os.environ.get('PATH', None)
+        if path is None:
+            try:
+                path = os.confstr("CS_PATH")
+            except (AttributeError, ValueError):
+                # os.confstr() or CS_PATH is not available
+                path = os.defpath
+        # bpo-35755: Don't use os.defpath if the PATH environment variable is
+        # set to an empty string
+
+    # PATH='' doesn't match, whereas PATH=':' looks in the current directory
+    if not path:
+        return None
+
+    paths = path.split(os.pathsep)
+    for p in paths:
+        f = os.path.join(p, executable)
+        if os.path.isfile(f):
+            # the file exists, we have a shot at spawn working
+            return f
+    return None