[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/libio/filedoalloc.c b/ap/libc/glibc/glibc-2.22/libio/filedoalloc.c
new file mode 100644
index 0000000..918a24a
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/libio/filedoalloc.c
@@ -0,0 +1,132 @@
+/* Copyright (C) 1993-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>.
+
+ As a special exception, if you link the code in this file with
+ files compiled with a GNU compiler to produce an executable,
+ that does not cause the resulting executable to be covered by
+ the GNU Lesser General Public License. This exception does not
+ however invalidate any other reasons why the executable file
+ might be covered by the GNU Lesser General Public License.
+ This exception applies to code released by its copyright holders
+ in files containing the exception. */
+
+/*
+ Copyright (C) 1990 The Regents of the University of California.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 4. Neither the name of the University nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.*/
+
+/* Modified for GNU iostream by Per Bothner 1991, 1992. */
+
+#ifndef _POSIX_SOURCE
+# define _POSIX_SOURCE
+#endif
+#include "libioP.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#ifdef _LIBC
+# undef isatty
+# define isatty(Fd) __isatty (Fd)
+
+# include <device-nrs.h>
+#endif
+
+
+static int
+local_isatty (int fd)
+{
+ int save_errno = errno;
+ int res = isatty (fd);
+ __set_errno (save_errno);
+ return res;
+}
+
+
+/*
+ * Allocate a file buffer, or switch to unbuffered I/O.
+ * Per the ANSI C standard, ALL tty devices default to line buffered.
+ *
+ * As a side effect, we set __SOPT or __SNPT (en/dis-able fseek
+ * optimisation) right after the _fstat() that finds the buffer size.
+ */
+
+int
+_IO_file_doallocate (fp)
+ _IO_FILE *fp;
+{
+ _IO_size_t size;
+ char *p;
+ struct stat64 st;
+
+#ifndef _LIBC
+ /* If _IO_cleanup_registration_needed is non-zero, we should call the
+ function it points to. This is to make sure _IO_cleanup gets called
+ on exit. We call it from _IO_file_doallocate, since that is likely
+ to get called by any program that does buffered I/O. */
+ if (__glibc_unlikely (_IO_cleanup_registration_needed != NULL))
+ (*_IO_cleanup_registration_needed) ();
+#endif
+
+ size = _IO_BUFSIZ;
+ if (fp->_fileno >= 0 && __builtin_expect (_IO_SYSSTAT (fp, &st), 0) >= 0)
+ {
+ if (S_ISCHR (st.st_mode))
+ {
+ /* Possibly a tty. */
+ if (
+#ifdef DEV_TTY_P
+ DEV_TTY_P (&st) ||
+#endif
+ local_isatty (fp->_fileno))
+ fp->_flags |= _IO_LINE_BUF;
+ }
+#if _IO_HAVE_ST_BLKSIZE
+ if (st.st_blksize > 0)
+ size = st.st_blksize;
+#endif
+ }
+ ALLOC_BUF (p, size, EOF);
+ _IO_setb (fp, p, p + size, 1);
+ return 1;
+}
+libc_hidden_def (_IO_file_doallocate)