From e82a0295170ae512560b099cb4533f5a4b9cf57c Mon Sep 17 00:00:00 2001
From: Andreas Jaeger <aj@suse.de>
Date: Tue, 30 May 2000 12:50:54 +0000
Subject: Update.

2000-05-30  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/mips/truncate64.c: New file.
	* sysdeps/unix/sysv/linux/mips/ftruncate64.c: New file.
	* sysdeps/unix/sysv/linux/mips/pread64.c: Readded file.
	* sysdeps/unix/sysv/linux/mips/pwrite64.c: Readded file.
	* sysdeps/unix/sysv/linux/mips/pread.c: Readded file.
	* sysdeps/unix/sysv/linux/mips/pwrite.c: Readded file.
---
 sysdeps/unix/sysv/linux/mips/truncate64.c | 84 +++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 sysdeps/unix/sysv/linux/mips/truncate64.c

(limited to 'sysdeps/unix/sysv/linux/mips/truncate64.c')

diff --git a/sysdeps/unix/sysv/linux/mips/truncate64.c b/sysdeps/unix/sysv/linux/mips/truncate64.c
new file mode 100644
index 0000000000..08d9667612
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/truncate64.c
@@ -0,0 +1,84 @@
+/* Copyright (C) 1997, 1998, 1999, 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sys/types.h>
+#include <endian.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "kernel-features.h"
+
+#ifdef __NR_truncate64
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+/* The variable is shared between all wrappers around *truncate64 calls.  */
+int __have_no_truncate64;
+#endif
+
+/* The order of hight, low depends on endianness.  */
+extern int __syscall_truncate64 (const char *path, int high_length, int low_length);
+
+
+/* Truncate the file FD refers to to LENGTH bytes.  */
+int
+truncate64 (const char *path, off64_t length)
+{
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+  if (! __have_no_truncate64)
+#endif
+    {
+      unsigned int low = length & 0xffffffff;
+      unsigned int high = length >> 32;
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+      int saved_errno = errno;
+#endif
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+      /* Use a fill argument to pass low, high in an aligned pair of
+         arguments (here 2/3).  */
+      int result = INLINE_SYSCALL (truncate64, 3, path, 0, low, high);
+#elif __BYTE_ORDER == __BIG_ENDIAN
+      int result = INLINE_SYSCALL (truncate64, 3, path, 0, high, low);
+#endif
+
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+      if (result != -1 || errno != ENOSYS)
+#endif
+	return result;
+
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+      __set_errno (saved_errno);
+      __have_no_truncate64 = 1;
+#endif
+    }
+
+#ifndef __ASSUME_TRUNCATE64_SYSCALL
+  if ((off_t) length != length)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+  return truncate (path, (off_t) length);
+#endif
+}
+
+#else
+/* Use the generic implementation.  */
+# include <sysdeps/generic/truncate64.c>
+#endif
-- 
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