[Feature][T106]ZXW P56U09 code
Only Configure: Yes
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: No
Doc Update: No
Change-Id: I3cbd8b420271eb20c2b40ebe5c78f83059cd42f3
diff --git a/ap/libc/glibc/glibc-2.23/sysdeps/posix/shm_open.c b/ap/libc/glibc/glibc-2.23/sysdeps/posix/shm_open.c
new file mode 100644
index 0000000..f296162
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/sysdeps/posix/shm_open.c
@@ -0,0 +1,76 @@
+/* shm_open -- open a POSIX shared memory object. Generic POSIX file version.
+ Copyright (C) 2001-2016 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/>. */
+
+#include <unistd.h>
+
+#if ! _POSIX_MAPPED_FILES
+
+# include <rt/shm_open.c>
+
+#else
+
+# include <fcntl.h>
+# include <shm-directory.h>
+
+
+/* Open shared memory object. */
+int
+shm_open (const char *name, int oflag, mode_t mode)
+{
+ SHM_GET_NAME (EINVAL, -1, "");
+
+# ifdef O_NOFOLLOW
+ oflag |= O_NOFOLLOW;
+# endif
+# ifdef O_CLOEXEC
+ oflag |= O_CLOEXEC;
+# endif
+ int fd = open (shm_name, oflag, mode);
+ if (fd == -1 && __glibc_unlikely (errno == EISDIR))
+ /* It might be better to fold this error with EINVAL since
+ directory names are just another example for unsuitable shared
+ object names and the standard does not mention EISDIR. */
+ __set_errno (EINVAL);
+
+# ifndef O_CLOEXEC
+ if (fd != -1)
+ {
+ /* We got a descriptor. Now set the FD_CLOEXEC bit. */
+ int flags = fcntl (fd, F_GETFD, 0);
+
+ if (__glibc_likely (flags != -1))
+ {
+ flags |= FD_CLOEXEC;
+ flags = fcntl (fd, F_SETFD, flags);
+ }
+
+ if (flags == -1)
+ {
+ /* Something went wrong. We cannot return the descriptor. */
+ int save_errno = errno;
+ close (fd);
+ fd = -1;
+ __set_errno (save_errno);
+ }
+ }
+# endif
+
+ return fd;
+}
+
+#endif /* _POSIX_MAPPED_FILES */