glibc/sysdeps/unix/sysv/linux/i386/readdir64.c
H.J. Lu 4587a421c5 Mark internal dirent functions with attribute_hidden [BZ #18822]
Mark internal dirent functions with attribute_hidden to allow direct
access within libc.so and libc.a without using GOT nor PLT.  __readdir64
is hidden with libc_hidden_proto and libc_hidden_def since the exported
readdir64 is an alias of __readdir64.

	[BZ #18822]
	* include/dirent.h (__opendir): Always add attribute_hidden.
	(__fdopendir): Likewise.
	(__closedir): Likewise.
	(__readdir): Likewise.
	(__readdir64): Add libc_hidden_proto.
	* sysdeps/mach/hurd/readdir64.c (__readdir64): Add libc_hidden_def.
	* sysdeps/unix/sysv/linux/i386/readdir64.c (__readdir64): Likewise.
	* sysdeps/unix/sysv/linux/readdir64.c (__readdir64): Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/readdir.c (__GI___readdir64):
	New alias.
2017-10-01 15:51:11 -07:00

47 lines
1.4 KiB
C

/* Copyright (C) 2000-2017 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/>. */
#define __READDIR __readdir64
#define __GETDENTS __getdents64
#define DIRENT_TYPE struct dirent64
#include <sysdeps/posix/readdir.c>
#include <shlib-compat.h>
#undef __READDIR
#undef __GETDENTS
#undef DIRENT_TYPE
libc_hidden_def (__readdir64)
versioned_symbol (libc, __readdir64, readdir64, GLIBC_2_2);
#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
#include <olddirent.h>
#define __READDIR attribute_compat_text_section __old_readdir64
#define __GETDENTS __old_getdents64
#define DIRENT_TYPE struct __old_dirent64
#include <sysdeps/posix/readdir.c>
libc_hidden_def (__old_readdir64)
compat_symbol (libc, __old_readdir64, readdir64, GLIBC_2_1);
#endif