* 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).

5 files changed, 146 insertions, 1 deletions

diff --git a/sysdeps/generic/bits/mman.h b/sysdeps/generic/bits/mman.h
index 57d42546d3..10560ac92b 100644
--- a/sysdeps/generic/bits/mman.h
+++ b/sysdeps/generic/bits/mman.h
@@ -1,5 +1,5 @@
 /* Definitions for BSD-style memory management.
-   Copyright (C) 1994-1998, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1994-1998,2000,01 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
@@ -79,3 +79,9 @@
 # define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
 # define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
 #endif
+
+
+/* Flags for `mlockall' (can be OR'd together).  */
+#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
+#define MCL_FUTURE	2		/* Lock all additions to address
+					   space.  */
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>
diff --git a/sysdeps/generic/mlockall.c b/sysdeps/generic/mlockall.c
new file mode 100644
index 0000000000..b6f8489c7c
--- /dev/null
+++ b/sysdeps/generic/mlockall.c
@@ -0,0 +1,36 @@
+/* mlockall -- lock in core all the pages in this process.  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>
+
+/* Cause all currently mapped pages of the process to be memory resident
+   until unlocked by a call to the `munlockall', until the process exits,
+   or until the process calls `execve'.  */
+
+int
+mlockall (int flags)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (mlockall)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/munlock.c b/sysdeps/generic/munlock.c
new file mode 100644
index 0000000000..75d33b16d4
--- /dev/null
+++ b/sysdeps/generic/munlock.c
@@ -0,0 +1,34 @@
+/* munlock -- undo the effects of prior mlock calls.  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>
+
+/* Undo the effects on these whole pages of any prior mlock calls.  */
+
+int
+munlock (const void *addr, size_t len)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (munlock)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/munlockall.c b/sysdeps/generic/munlockall.c
new file mode 100644
index 0000000000..763ab99dcd
--- /dev/null
+++ b/sysdeps/generic/munlockall.c
@@ -0,0 +1,34 @@
+/* munlockall -- undo the effects of all prior mlock calls.  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>
+
+/* Undo the effects of all prior mlock calls in this process.  */
+
+int
+munlockall (void)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (munlockall)
+#include <stub-tag.h>