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authorRoland McGrath <roland@gnu.org>2001-04-19 23:25:40 +0000
committerRoland McGrath <roland@gnu.org>2001-04-19 23:25:40 +0000
commitd81b986bea1bdfbf3a27131df9decbf09882654a (patch)
treecde4bb8e03a78bd69401d89661cf659abe0aa541 /sysdeps/generic/mlock.c
parent5017b2c845c235542b3101b9cf648f72b9f6ed3e (diff)
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* sysdeps/mach/hurd/mlock.c: New file.
	* sysdeps/mach/hurd/munlock.c: New file.
	* sysdeps/mach/hurd/bits/posix_opt.h (_POSIX_MEMLOCK_RANGE): Define it.

	* misc/Makefile (routines): Add mlock munlock mlockall munlockall.
	* sysdeps/generic/mlock.c: New file.
	* sysdeps/generic/munlock.c: New file.
	* sysdeps/generic/mlockall.c: New file.
	* sysdeps/generic/munlockall.c: New file.
	* sysdeps/generic/bits/mman.h (MCL_CURRENT, MCL_FUTURE): New macros.
	* sysdeps/unix/sysv/linux/syscalls.list (mlock, munlock,
	mlockall, munlockall): Change caller field to - from EXTRA.
	Don't use __ names; not used (and not declared in include/sys/mman.h).
Diffstat (limited to 'sysdeps/generic/mlock.c')
-rw-r--r--sysdeps/generic/mlock.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/sysdeps/generic/mlock.c b/sysdeps/generic/mlock.c
new file mode 100644
index 0000000000..ca9b0dfb70
--- /dev/null
+++ b/sysdeps/generic/mlock.c
@@ -0,0 +1,35 @@
+/* mlock -- guarantee pages are resident in memory.  Stub version.
+   Copyright (C) 2001 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 <sys/mman.h>
+#include <errno.h>
+
+/* Guarantee all whole pages mapped by the range [ADDR,ADDR+LEN) to
+   be memory resident.  */
+
+int
+mlock (const void *addr, size_t len)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (mlock)
+#include <stub-tag.h>