Update.

1999-12-18  Ulrich Drepper  <drepper@cygnus.com>

	* include/unistd.h: Declare __libc_open64, __libc_lseek64,
	__libc_pread, __libc_pread64, __libc_pwrite, and __libc_pwrite64.
	* io/Versions: Export __libc_open64 and __libc_lseek64.
	* posix/Versions: Export __libc_pread, __libc_pread64, __libc_pwrite,
	and __libc_pwrite64.
	* sysdeps/generic/open64.c: Define __libc_* variant for cancelation
	wrapper.
	* sysdeps/generic/pread.c: Likewise.
	* sysdeps/generic/pread64.c: Likewise.
	* sysdeps/generic/pwrite.c: Likewise.
	* sysdeps/generic/pwrite64.c: Likewise.
	* sysdeps/posix/open64.c: Likewise.
	* sysdeps/posix/pread.c: Likewise.
	* sysdeps/posix/pread64.c: Likewise.
	* sysdeps/posix/pwrite.c: Likewise.
	* sysdeps/posix/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/llseek.c: Likewise.
	* sysdeps/unix/sysv/linux/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/pwrite64.c: Likewise.

	* sysdeps/posix/open64.c: Help gcc generating better code.

	* sysdeps/generic/libc-start.c (check_one_fd): Use __libc_open
	instead of __open.

5 files changed, 42 insertions, 41 deletions

diff --git a/sysdeps/posix/open64.c b/sysdeps/posix/open64.c
index e409891..fba30a6 100644
--- a/sysdeps/posix/open64.c
+++ b/sysdeps/posix/open64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996, 1997, 1999 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
@@ -22,11 +22,9 @@
 /* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
    a third argument is the file protection.  */
 int
-__open64 (file, oflag)
-     const char *file;
-     int oflag;
+__libc_open64 (const char *file, int oflag, ...)
 {
-  int mode;
+  int mode = 0;
 
   if (oflag & O_CREAT)
     {
@@ -35,9 +33,8 @@ __open64 (file, oflag)
       mode = va_arg (arg, int);
       va_end (arg);
     }
-  else
-    mode = 0;
 
-  return __open (file, oflag | O_LARGEFILE, mode);
+  return __libc_open (file, oflag | O_LARGEFILE, mode);
 }
-weak_alias (__open64, open64)
+strong_alias (__libc_open64, __open64)
+weak_alias (__libc_open64, open64)
diff --git a/sysdeps/posix/pread.c b/sysdeps/posix/pread.c
index 5ad5acb..7ecc99e 100644
--- a/sysdeps/posix/pread.c
+++ b/sysdeps/posix/pread.c
@@ -1,6 +1,6 @@
 /* Read block from given position in file without changing file pointer.
    POSIX version.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -23,28 +23,28 @@
 #include <unistd.h>
 
 ssize_t
-__pread (int fd, void *buf, size_t nbyte, off_t offset)
+__libc_pread (int fd, void *buf, size_t nbyte, off_t offset)
 {
   /* Since we must not change the file pointer preserve the value so that
      we can restore it later.  */
   int save_errno;
   ssize_t result;
-  off_t old_offset = __lseek (fd, 0, SEEK_CUR);
+  off_t old_offset = __libc_lseek (fd, 0, SEEK_CUR);
   if (old_offset == (off_t) -1)
     return -1;
 
   /* Set to wanted position.  */
-  if (__lseek (fd, offset, SEEK_SET) == (off_t) -1)
+  if (__libc_lseek (fd, offset, SEEK_SET) == (off_t) -1)
     return -1;
 
   /* Write out the data.  */
-  result = __read (fd, buf, nbyte);
+  result = __libc_read (fd, buf, nbyte);
 
   /* Now we have to restore the position.  If this fails we have to
      return this as an error.  But if the writing also failed we
      return this error.  */
   save_errno = errno;
-  if (__lseek (fd, old_offset, SEEK_SET) == (off_t) -1)
+  if (__libc_lseek (fd, old_offset, SEEK_SET) == (off_t) -1)
     {
       if (result == -1)
 	__set_errno (save_errno);
@@ -55,6 +55,7 @@ __pread (int fd, void *buf, size_t nbyte, off_t offset)
   return result;
 }
 
-#ifndef __pread
-weak_alias (__pread, pread)
+#ifndef __libc_pread
+strong_alias (__libc_pread, __pread)
+weak_alias (__libc_pread, pread)
 #endif
diff --git a/sysdeps/posix/pread64.c b/sysdeps/posix/pread64.c
index 16fb3df..ad85050 100644
--- a/sysdeps/posix/pread64.c
+++ b/sysdeps/posix/pread64.c
@@ -1,6 +1,6 @@
 /* Read block from given position in file without changing file pointer.
    POSIX version.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -23,28 +23,28 @@
 #include <unistd.h>
 
 ssize_t
-__pread64 (int fd, void *buf, size_t nbyte, off64_t offset)
+__libc_pread64 (int fd, void *buf, size_t nbyte, off64_t offset)
 {
   /* Since we must not change the file pointer preserve the value so that
      we can restore it later.  */
   int save_errno;
   ssize_t result;
-  off64_t old_offset = __lseek64 (fd, 0, SEEK_CUR);
+  off64_t old_offset = __libc_lseek64 (fd, 0, SEEK_CUR);
   if (old_offset == (off64_t) -1)
     return -1;
 
   /* Set to wanted position.  */
-  if (__lseek64 (fd, offset, SEEK_SET) == (off64_t) -1)
+  if (__libc_lseek64 (fd, offset, SEEK_SET) == (off64_t) -1)
     return -1;
 
   /* Write out the data.  */
-  result = __read (fd, buf, nbyte);
+  result = __libc_read (fd, buf, nbyte);
 
   /* Now we have to restore the position.  If this fails we have to
      return this as an error.  But if the writing also failed we
      return this error.  */
   save_errno = errno;
-  if (__lseek64 (fd, old_offset, SEEK_SET) == (off64_t) -1)
+  if (__libc_lseek64 (fd, old_offset, SEEK_SET) == (off64_t) -1)
     {
       if (result == -1)
 	__set_errno (save_errno);
@@ -55,6 +55,7 @@ __pread64 (int fd, void *buf, size_t nbyte, off64_t offset)
   return result;
 }
 
-#ifndef __pread64
-weak_alias (__pread64, pread64)
+#ifndef __libc_pread64
+strong_alias (__libc_pread64, __pread64)
+weak_alias (__libc_pread64, pread64)
 #endif
diff --git a/sysdeps/posix/pwrite.c b/sysdeps/posix/pwrite.c
index 6558eb5..35028e2 100644
--- a/sysdeps/posix/pwrite.c
+++ b/sysdeps/posix/pwrite.c
@@ -1,6 +1,6 @@
 /* Write block to given position in file without changing file pointer.
    POSIX version.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -23,28 +23,28 @@
 #include <unistd.h>
 
 ssize_t
-__pwrite (int fd, const void *buf, size_t nbyte, off_t offset)
+__libc_pwrite (int fd, const void *buf, size_t nbyte, off_t offset)
 {
   /* Since we must not change the file pointer preserve the value so that
      we can restore it later.  */
   int save_errno;
   ssize_t result;
-  off_t old_offset = __lseek (fd, 0, SEEK_CUR);
+  off_t old_offset = __libc_lseek (fd, 0, SEEK_CUR);
   if (old_offset == (off_t) -1)
     return -1;
 
   /* Set to wanted position.  */
-  if (__lseek (fd, offset, SEEK_SET) == (off_t) -1)
+  if (__libc_lseek (fd, offset, SEEK_SET) == (off_t) -1)
     return -1;
 
   /* Write out the data.  */
-  result = __write (fd, buf, nbyte);
+  result = __libc_write (fd, buf, nbyte);
 
   /* Now we have to restore the position.  If this fails we have to
      return this as an error.  But if the writing also failed we
      return this error.  */
   save_errno = errno;
-  if (__lseek (fd, old_offset, SEEK_SET) == (off_t) -1)
+  if (__libc_lseek (fd, old_offset, SEEK_SET) == (off_t) -1)
     {
       if (result == -1)
 	__set_errno (save_errno);
@@ -55,6 +55,7 @@ __pwrite (int fd, const void *buf, size_t nbyte, off_t offset)
   return result;
 }
 
-#ifndef __pwrite
-weak_alias (__pwrite, pwrite)
+#ifndef __libc_pwrite
+strong_alias (__libc_pwrite, __pwrite)
+weak_alias (__libc_pwrite, pwrite)
 #endif
diff --git a/sysdeps/posix/pwrite64.c b/sysdeps/posix/pwrite64.c
index 89ec261..6cd5dec 100644
--- a/sysdeps/posix/pwrite64.c
+++ b/sysdeps/posix/pwrite64.c
@@ -1,6 +1,6 @@
 /* Write block to given position in file without changing file pointer.
    POSIX version.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -23,28 +23,28 @@
 #include <unistd.h>
 
 ssize_t
-__pwrite64 (int fd, const void *buf, size_t nbyte, off64_t offset)
+__libc_pwrite64 (int fd, const void *buf, size_t nbyte, off64_t offset)
 {
   /* Since we must not change the file pointer preserve the value so that
      we can restore it later.  */
   int save_errno;
   ssize_t result;
-  off64_t old_offset = __lseek64 (fd, 0, SEEK_CUR);
+  off64_t old_offset = __libc_lseek64 (fd, 0, SEEK_CUR);
   if (old_offset == (off64_t) -1)
     return -1;
 
   /* Set to wanted position.  */
-  if (__lseek64 (fd, offset, SEEK_SET) == (off64_t) -1)
+  if (__libc_lseek64 (fd, offset, SEEK_SET) == (off64_t) -1)
     return -1;
 
   /* Write out the data.  */
-  result = __write (fd, buf, nbyte);
+  result = __libc_write (fd, buf, nbyte);
 
   /* Now we have to restore the position.  If this fails we have to
      return this as an error.  But if the writing also failed we
      return this error.  */
   save_errno = errno;
-  if (__lseek64 (fd, old_offset, SEEK_SET) == (off64_t) -1)
+  if (__libc_lseek64 (fd, old_offset, SEEK_SET) == (off64_t) -1)
     {
       if (result == -1)
 	__set_errno (save_errno);
@@ -54,6 +54,7 @@ __pwrite64 (int fd, const void *buf, size_t nbyte, off64_t offset)
 
   return result;
 }
-#ifndef __pwrite64
-weak_alias (__pwrite64, pwrite64)
+#ifndef __libc_pwrite64
+strong_alias (__libc_pwrite64, __pwrite64)
+weak_alias (__libc_pwrite64, pwrite64)
 #endif