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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
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')
-rw-r--r--sysdeps/generic/bits/mman.h8
-rw-r--r--sysdeps/generic/mlock.c35
-rw-r--r--sysdeps/generic/mlockall.c36
-rw-r--r--sysdeps/generic/munlock.c34
-rw-r--r--sysdeps/generic/munlockall.c34
-rw-r--r--sysdeps/mach/hurd/bits/posix_opt.h5
-rw-r--r--sysdeps/mach/hurd/mlock.c47
-rw-r--r--sysdeps/mach/hurd/munlock.c45
-rw-r--r--sysdeps/unix/sysv/linux/syscalls.list8
9 files changed, 246 insertions, 6 deletions
diff --git a/sysdeps/generic/bits/mman.h b/sysdeps/generic/bits/mman.h
index 57d4254..10560ac 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 0000000..ca9b0df
--- /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 0000000..b6f8489
--- /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 0000000..75d33b1
--- /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 0000000..763ab99
--- /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>
diff --git a/sysdeps/mach/hurd/bits/posix_opt.h b/sysdeps/mach/hurd/bits/posix_opt.h
index c6cdf53..0228000 100644
--- a/sysdeps/mach/hurd/bits/posix_opt.h
+++ b/sysdeps/mach/hurd/bits/posix_opt.h
@@ -1,5 +1,5 @@
/* Define POSIX options for GNU/Hurd.
- Copyright (C) 1998, 2000 Free Software Foundation, Inc.
+ Copyright (C) 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
@@ -40,6 +40,9 @@
/* Mapping of files to memory is supported. */
#define _POSIX_MAPPED_FILES 1
+/* Locking of ranges of memory is supported. */
+#define _POSIX_MEMLOCK_RANGE 1
+
/* Setting of memory protections is supported. */
#define _POSIX_MEMORY_PROTECTION 1
diff --git a/sysdeps/mach/hurd/mlock.c b/sysdeps/mach/hurd/mlock.c
new file mode 100644
index 0000000..e7086c1
--- /dev/null
+++ b/sysdeps/mach/hurd/mlock.c
@@ -0,0 +1,47 @@
+/* mlock -- guarantee pages are resident in memory. Mach/Hurd 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>
+#include <hurd.h>
+#include <mach/mach_host.h>
+
+/* Guarantee all whole pages mapped by the range [ADDR,ADDR+LEN) to
+ be memory resident. */
+
+int
+mlock (const void *addr, size_t len)
+{
+ mach_port_t hostpriv;
+ vm_address_t page;
+ error_t err;
+
+ err = __get_privileged_ports (&hostpriv, NULL);
+ if (err)
+ return __hurd_fail (EPERM);
+
+ page = trunc_page ((vm_address_t) addr);
+ len = round_page ((vm_address_t) addr + len) - page;
+ err = __vm_wire (hostpriv, __mach_task_self (), page, len,
+ VM_PROT_ALL); /* XXX ? */
+ __mach_port_deallocate (__mach_task_self (), hostpriv);
+
+ return err ? __hurd_fail (err) : 0;
+}
diff --git a/sysdeps/mach/hurd/munlock.c b/sysdeps/mach/hurd/munlock.c
new file mode 100644
index 0000000..a91f9f0
--- /dev/null
+++ b/sysdeps/mach/hurd/munlock.c
@@ -0,0 +1,45 @@
+/* munlock -- undo the effects of prior mlock calls. Mach/Hurd 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>
+#include <hurd.h>
+#include <mach/mach_host.h>
+
+/* Undo the effects on these whole pages of any prior mlock calls. */
+
+int
+munlock (const void *addr, size_t len)
+{
+ mach_port_t hostpriv;
+ vm_address_t page;
+ error_t err;
+
+ err = __get_privileged_ports (&hostpriv, NULL);
+ if (err)
+ return __hurd_fail (EPERM);
+
+ page = trunc_page ((vm_address_t) addr);
+ len = round_page ((vm_address_t) addr + len) - page;
+ err = __vm_wire (hostpriv, __mach_task_self (), page, len, VM_PROT_NONE);
+ __mach_port_deallocate (__mach_task_self (), hostpriv);
+
+ return err ? __hurd_fail (err) : 0;
+}
diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
index 2f72679..7ca6e48 100644
--- a/sysdeps/unix/sysv/linux/syscalls.list
+++ b/sysdeps/unix/sysv/linux/syscalls.list
@@ -23,13 +23,13 @@ klogctl EXTRA syslog i:isi klogctl
lchown - lchown i:sii __lchown lchown
madvise - madvise i:pii posix_madvise madvise
mincore - mincore i:anV mincore
-mlock EXTRA mlock i:bn __mlock mlock
-mlockall EXTRA mlockall i:i __mlockall mlockall
+mlock - mlock i:bn mlock
+mlockall - mlockall i:i mlockall
mmap - mmap b:aniiii __mmap mmap
mount EXTRA mount i:sssip __mount mount
mremap EXTRA mremap b:aini __mremap mremap
-munlock EXTRA munlock i:ai __munlock munlock
-munlockall EXTRA munlockall i: __munlockall munlockall
+munlock - munlock i:ai munlock
+munlockall - munlockall i: munlockall
nanosleep - nanosleep i:pp __libc_nanosleep __nanosleep nanosleep
nfsservctl EXTRA nfsservctl i:ipp nfsservctl
pause - pause i: __libc_pause pause