glibc/misc/getsysstats.c
H.J. Lu b5648377d9 Hide internal sysinfo functions [BZ #18822]
Hide internal sysinfo functions to allow direct access within libc.so
and libc.a without using GOT nor PLT.

	[BZ #18822]
	* include/sys/sysinfo.h (__get_nprocs_conf): Add
	libc_hidden_proto.
	(__get_nprocs): Likewise.
	(__get_phys_pages): Likewise.
	(__get_avphys_pages): Likewise.
	(__get_child_max): Add attribute_hidden.
	* misc/getsysstats.c (__get_nprocs_conf): Add libc_hidden_def.
	(__get_nprocs): Likewise.
	(__get_phys_pages): Likewise.
	(__get_avphys_pages): Likewise.
	* sysdeps/mach/getsysstats.c (__get_nprocs_conf): Add
	libc_hidden_def.
	(__get_nprocs): Likewise.
	(__get_phys_pages): Likewise.
	(__get_avphys_pages): Likewise.
	* sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs): Add
	libc_hidden_def.
	(__get_nprocs_conf): Likewise.
	(__get_phys_pages): Likewise.
	(__get_avphys_pages): Likewise.
2017-10-01 15:57:21 -07:00

72 lines
2.0 KiB
C

/* getsysstats - Determine various system internal values, stub version.
Copyright (C) 1996-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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/sysinfo.h>
int
__get_nprocs_conf (void)
{
/* We don't know how to determine the number. Simply return always 1. */
return 1;
}
libc_hidden_def (__get_nprocs_conf)
weak_alias (__get_nprocs_conf, get_nprocs_conf)
link_warning (get_nprocs_conf, "warning: get_nprocs_conf will always return 1")
int
__get_nprocs (void)
{
/* We don't know how to determine the number. Simply return always 1. */
return 1;
}
libc_hidden_def (__get_nprocs)
weak_alias (__get_nprocs, get_nprocs)
link_warning (get_nprocs, "warning: get_nprocs will always return 1")
long int
__get_phys_pages (void)
{
/* We have no general way to determine this value. */
__set_errno (ENOSYS);
return -1;
}
libc_hidden_def (__get_phys_pages)
weak_alias (__get_phys_pages, get_phys_pages)
stub_warning (get_phys_pages)
long int
__get_avphys_pages (void)
{
/* We have no general way to determine this value. */
__set_errno (ENOSYS);
return -1;
}
libc_hidden_def (__get_avphys_pages)
weak_alias (__get_avphys_pages, get_avphys_pages)
stub_warning (get_avphys_pages)