diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/generic/bits/mman.h | 8 | ||||
| -rw-r--r-- | sysdeps/generic/mlock.c | 35 | ||||
| -rw-r--r-- | sysdeps/generic/mlockall.c | 36 | ||||
| -rw-r--r-- | sysdeps/generic/munlock.c | 34 | ||||
| -rw-r--r-- | sysdeps/generic/munlockall.c | 34 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/bits/posix_opt.h | 5 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/mlock.c | 47 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/munlock.c | 45 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/syscalls.list | 8 |
9 files changed, 246 insertions, 6 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> diff --git a/sysdeps/mach/hurd/bits/posix_opt.h b/sysdeps/mach/hurd/bits/posix_opt.h index c6cdf530f3..02280002a2 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 0000000000..e7086c1b68 --- /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 0000000000..a91f9f0986 --- /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 2f72679452..7ca6e48c8c 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 |