Move mips from ports to libc.

I've moved the MIPS port from ports to the main sysdeps hierarchy.
Beyond the README update, the move of the files was simply

git mv ports/sysdeps/mips sysdeps/mips
git mv ports/sysdeps/unix/mips sysdeps/unix/mips
git mv ports/sysdeps/unix/sysv/linux/mips sysdeps/unix/sysv/linux/mips

and in addition to the ChangeLog entries here, I put a note at the top
of ports/ChangeLog.mips similar to those in other files.

Tested that disassembly of installed shared libraries for mips is the
same before and after this patch (except for ld.so where paths in
assertions are involved, as for arm).

	* sysdeps/mips: Move directory from ports/sysdeps/mips.
	* sysdeps/unix/mips: Move directory from ports/sysdeps/unix/mips.
	* sysdeps/unix/sysv/linux/mips: Move directory from
	ports/sysdeps/unix/sysv/linux/mips.
	* README: Update listing for mips-*-linux-gnu and
	mips64-*-linux-gnu.

	* sysdeps/mips: Move directory to ../sysdeps/mips.
	* sysdeps/unix/mips: Move directory to ../sysdeps/unix/mips.
	* sysdeps/unix/sysv/linux/mips: Move directory to
	../sysdeps/unix/sysv/linux/mips.

1 files changed, 201 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/mips/xstatconv.c b/sysdeps/unix/sysv/linux/mips/xstatconv.c
new file mode 100644
index 0000000000..38819e19b0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/xstatconv.c
@@ -0,0 +1,201 @@
+/* Convert between the kernel's `struct stat' format, and libc's.
+   Copyright (C) 1991-2014 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 <errno.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+
+#include <string.h>
+
+int
+__xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
+{
+  switch (vers)
+    {
+    case _STAT_VER_KERNEL:
+      /* Nothing to do.  The struct is in the form the kernel expects.
+         We should have short-circuted before we got here, but for
+         completeness... */
+      *(struct kernel_stat *) ubuf = *kbuf;
+      break;
+
+    case _STAT_VER_LINUX:
+      {
+	struct stat *buf = ubuf;
+
+	/* Convert to current kernel version of `struct stat'.  */
+	buf->st_dev = kbuf->st_dev;
+	memset (&buf->st_pad1, 0, sizeof (buf->st_pad1));
+	buf->st_ino = kbuf->st_ino;
+	/* Check for overflow.  */
+	if (buf->st_ino != kbuf->st_ino)
+	  {
+	    __set_errno (EOVERFLOW);
+	    return -1;
+	  }
+	buf->st_mode = kbuf->st_mode;
+	buf->st_nlink = kbuf->st_nlink;
+	buf->st_uid = kbuf->st_uid;
+	buf->st_gid = kbuf->st_gid;
+	buf->st_rdev = kbuf->st_rdev;
+	memset (&buf->st_pad2, 0, sizeof (buf->st_pad2));
+	buf->st_size = kbuf->st_size;
+	/* Check for overflow.  */
+	if (buf->st_size != kbuf->st_size)
+	  {
+	    __set_errno (EOVERFLOW);
+	    return -1;
+	  }
+	buf->st_pad3 = 0;
+	buf->st_atim.tv_sec = kbuf->st_atime_sec;
+	buf->st_atim.tv_nsec = kbuf->st_atime_nsec;
+	buf->st_mtim.tv_sec = kbuf->st_mtime_sec;
+	buf->st_mtim.tv_nsec = kbuf->st_mtime_nsec;
+	buf->st_ctim.tv_sec = kbuf->st_ctime_sec;
+	buf->st_ctim.tv_nsec = kbuf->st_ctime_nsec;
+	buf->st_blksize = kbuf->st_blksize;
+	buf->st_blocks = kbuf->st_blocks;
+	/* Check for overflow.  */
+	if (buf->st_blocks != kbuf->st_blocks)
+	  {
+	    __set_errno (EOVERFLOW);
+	    return -1;
+	  }
+	memset (&buf->st_pad5, 0, sizeof (buf->st_pad5));
+      }
+      break;
+
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return 0;
+}
+
+int
+__xstat64_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
+{
+#ifdef XSTAT_IS_XSTAT64
+  return xstat_conv (vers, kbuf, ubuf);
+#else
+  switch (vers)
+    {
+    case _STAT_VER_LINUX:
+      {
+	struct stat64 *buf = ubuf;
+
+	buf->st_dev = kbuf->st_dev;
+	memset (&buf->st_pad1, 0, sizeof (buf->st_pad1));
+	buf->st_ino = kbuf->st_ino;
+	buf->st_mode = kbuf->st_mode;
+	buf->st_nlink = kbuf->st_nlink;
+	buf->st_uid = kbuf->st_uid;
+	buf->st_gid = kbuf->st_gid;
+	buf->st_rdev = kbuf->st_rdev;
+	memset (&buf->st_pad2, 0, sizeof (buf->st_pad2));
+	buf->st_pad3 = 0;
+	buf->st_size = kbuf->st_size;
+	buf->st_blksize = kbuf->st_blksize;
+	buf->st_blocks = kbuf->st_blocks;
+
+	buf->st_atim.tv_sec = kbuf->st_atime_sec;
+	buf->st_atim.tv_nsec = kbuf->st_atime_nsec;
+	buf->st_mtim.tv_sec = kbuf->st_mtime_sec;
+	buf->st_mtim.tv_nsec = kbuf->st_mtime_nsec;
+	buf->st_ctim.tv_sec = kbuf->st_ctime_sec;
+	buf->st_ctim.tv_nsec = kbuf->st_ctime_nsec;
+
+	memset (&buf->st_pad4, 0, sizeof (buf->st_pad4));
+      }
+      break;
+
+      /* If struct stat64 is different from struct stat then
+	 _STAT_VER_KERNEL does not make sense.  */
+    case _STAT_VER_KERNEL:
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return 0;
+#endif
+}
+
+#if _MIPS_SIM == _ABIO32
+int
+__xstat32_conv (int vers, struct stat64 *kbuf, struct stat *buf)
+{
+  switch (vers)
+    {
+    case _STAT_VER_LINUX:
+      /* Convert current kernel version of `struct stat64' to
+	 `struct stat'.  The layout of the fields in the kernel's
+	 stat64 is the same as that in the user stat64; the only
+	 difference is that the latter has more trailing padding.  */
+      buf->st_dev = kbuf->st_dev;
+      memset (&buf->st_pad1, 0, sizeof (buf->st_pad1));
+      buf->st_ino = kbuf->st_ino;
+      /* Check for overflow.  */
+      if (buf->st_ino != kbuf->st_ino)
+	{
+	  __set_errno (EOVERFLOW);
+	  return -1;
+	}
+      buf->st_mode = kbuf->st_mode;
+      buf->st_nlink = kbuf->st_nlink;
+      buf->st_uid = kbuf->st_uid;
+      buf->st_gid = kbuf->st_gid;
+      buf->st_rdev = kbuf->st_rdev;
+      memset (&buf->st_pad2, 0, sizeof (buf->st_pad2));
+      buf->st_size = kbuf->st_size;
+      /* Check for overflow.  */
+      if (buf->st_size != kbuf->st_size)
+	{
+	  __set_errno (EOVERFLOW);
+	  return -1;
+	}
+      buf->st_pad3 = 0;
+      buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
+      buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
+      buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
+      buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
+      buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
+      buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
+      buf->st_blksize = kbuf->st_blksize;
+      buf->st_blocks = kbuf->st_blocks;
+      /* Check for overflow.  */
+      if (buf->st_blocks != kbuf->st_blocks)
+	{
+	  __set_errno (EOVERFLOW);
+	  return -1;
+	}
+      memset (&buf->st_pad5, 0, sizeof (buf->st_pad5));
+      break;
+
+      /* If struct stat64 is different from struct stat then
+	 _STAT_VER_KERNEL does not make sense.  */
+    case _STAT_VER_KERNEL:
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return 0;
+}
+#endif /* _MIPS_SIM == _ABIO32 */