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.

6 files changed, 22 insertions, 16 deletions

diff --git a/sysdeps/generic/libc-start.c b/sysdeps/generic/libc-start.c
index 58e7804f26..ea3cbe6241 100644
--- a/sysdeps/generic/libc-start.c
+++ b/sysdeps/generic/libc-start.c
@@ -26,6 +26,7 @@
 
 extern void __libc_init_first (int argc, char **argv, char **envp);
 extern int __libc_fcntl (int fd, int cmd, ...);
+extern int __libc_open  (const char *pathname, int flags, ...);
 
 extern int _dl_starting_up;
 weak_extern (_dl_starting_up)
@@ -102,7 +103,7 @@ check_one_fd (int fd, int mode)
       /* Something is wrong with this descriptor, it's probably not
 	 opened.  Open /dev/null so that the SUID program we are
 	 about to start does not accidently use this descriptor.  */
-      int nullfd = __open (_PATH_DEVNULL, mode);
+      int nullfd = __libc_open (_PATH_DEVNULL, mode);
       if (nullfd == -1)
 	/* We cannot even given an error message here since it would
 	   run into the same problems.  */
diff --git a/sysdeps/generic/open64.c b/sysdeps/generic/open64.c
index 16e19730f4..c90b00c7cd 100644
--- a/sysdeps/generic/open64.c
+++ b/sysdeps/generic/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
@@ -24,7 +24,7 @@
 /* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
    a third argument is the file protection.  */
 int
-__open64 (file, oflag)
+__libc_open64 (file, oflag)
      const char *file;
      int oflag;
 {
@@ -47,7 +47,8 @@ __open64 (file, oflag)
   __set_errno (ENOSYS);
   return -1;
 }
-weak_alias (__open64, open64)
+strong_alias (__libc_open64, __open64)
+weak_alias (__libc_open64, open64)
 
 stub_warning (open64)
 #include <stub-tag.h>
diff --git a/sysdeps/generic/pread.c b/sysdeps/generic/pread.c
index 82548d0272..07fa7dee97 100644
--- a/sysdeps/generic/pread.c
+++ b/sysdeps/generic/pread.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
@@ -22,7 +22,7 @@
 /* Read NBYTES into BUF from FD at the given position OFFSET without
    changing the file pointer.  Return the number read or -1.  */
 ssize_t
-__pread (int fd, void *buf, size_t nbytes, off_t offset)
+__libc_pread (int fd, void *buf, size_t nbytes, off_t offset)
 {
   if (nbytes == 0)
     return 0;
@@ -40,6 +40,7 @@ __pread (int fd, void *buf, size_t nbytes, off_t offset)
   __set_errno (ENOSYS);
   return -1;
 }
-weak_alias (__pread, pread)
+strong_alias (__libc_pread, __pread)
+weak_alias (__libc_pread, pread)
 stub_warning (pread)
 #include <stub-tag.h>
diff --git a/sysdeps/generic/pread64.c b/sysdeps/generic/pread64.c
index e1596038ac..64ed9e2013 100644
--- a/sysdeps/generic/pread64.c
+++ b/sysdeps/generic/pread64.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
@@ -22,7 +22,7 @@
 /* Read NBYTES into BUF from FD at the given position OFFSET without
    changing the file pointer.  Return the number read or -1.  */
 ssize_t
-__pread64 (int fd, void *buf, size_t nbytes, off64_t offset)
+__libc_pread64 (int fd, void *buf, size_t nbytes, off64_t offset)
 {
   if (nbytes == 0)
     return 0;
@@ -40,6 +40,7 @@ __pread64 (int fd, void *buf, size_t nbytes, off64_t offset)
   __set_errno (ENOSYS);
   return -1;
 }
-weak_alias (__pread64, pread64)
+strong_alias (__libc_pread64, __pread64)
+weak_alias (__libc_pread64, pread64)
 stub_warning (pread64)
 #include <stub-tag.h>
diff --git a/sysdeps/generic/pwrite.c b/sysdeps/generic/pwrite.c
index 8eec560c9d..3e0f7fd8a0 100644
--- a/sysdeps/generic/pwrite.c
+++ b/sysdeps/generic/pwrite.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
@@ -22,7 +22,7 @@
 /* Write NBYTES of BUF to FD at given position OFFSET without changing
    the file position.  Return the number written, or -1.  */
 ssize_t
-__pwrite (int fd, const void *buf, size_t nbytes, off_t offset)
+__libc_pwrite (int fd, const void *buf, size_t nbytes, off_t offset)
 {
   if (nbytes == 0)
     return 0;
@@ -40,6 +40,7 @@ __pwrite (int fd, const void *buf, size_t nbytes, off_t offset)
   __set_errno (ENOSYS);
   return -1;
 }
-weak_alias (__pwrite, pwrite)
+strong_alias (__libc_pwrite, __pwrite)
+weak_alias (__libc_pwrite, pwrite)
 stub_warning (pwrite)
 #include <stub-tag.h>
diff --git a/sysdeps/generic/pwrite64.c b/sysdeps/generic/pwrite64.c
index d84b63576a..4b080d00c2 100644
--- a/sysdeps/generic/pwrite64.c
+++ b/sysdeps/generic/pwrite64.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
@@ -22,7 +22,7 @@
 /* Write NBYTES of BUF to FD at given position OFFSET without changing
    the file position.  Return the number written, or -1.  */
 ssize_t
-__pwrite64 (int fd, const void *buf, size_t nbytes, off64_t offset)
+__libc_pwrite64 (int fd, const void *buf, size_t nbytes, off64_t offset)
 {
   if (nbytes == 0)
     return 0;
@@ -40,6 +40,7 @@ __pwrite64 (int fd, const void *buf, size_t nbytes, off64_t offset)
   __set_errno (ENOSYS);
   return -1;
 }
-weak_alias (__pwrite64, pwrite64)
+strong_alias (__libc_pwrite64, __pwrite64)
+weak_alias (__libc_pwrite64, pwrite64)
 stub_warning (pwrite64)
 #include <stub-tag.h>