diff options
| -rw-r--r-- | ChangeLog | 2 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/mlockall.c | 42 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/munlockall.c | 40 |
3 files changed, 84 insertions, 0 deletions
@@ -70,6 +70,8 @@ if flags contains O_DIRECTORY and the result is a directory. * sysdeps/mach/hurd/i386/init-first.c (init): Also find ELF headers by oneself when the pointer given in D is nul (as set by ext2fs). + * sysdeps/mach/hurd/mlockall.c: New file. + * sysdeps/mach/hurd/munlockall.c: New file. 2018-03-17 Samuel Thibault <samuel.thibault@ens-lyon.org> diff --git a/sysdeps/mach/hurd/mlockall.c b/sysdeps/mach/hurd/mlockall.c new file mode 100644 index 0000000..6fa944b --- /dev/null +++ b/sysdeps/mach/hurd/mlockall.c @@ -0,0 +1,42 @@ +/* mlockall -- lock in core all the pages in this process. Hurd version. + Copyright (C) 2001-2018 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 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 <sys/types.h> +#include <sys/mman.h> +#include <errno.h> +#include <hurd.h> +#include <mach/mach_host.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) +{ + mach_port_t host; + error_t err; + + err = __get_privileged_ports (&host, NULL); + if (err) + return __hurd_fail (err); + + err = __vm_wire_all (host, __mach_task_self (), flags); + __mach_port_deallocate (__mach_task_self (), host); + return err ? __hurd_fail (err) : 0; +} diff --git a/sysdeps/mach/hurd/munlockall.c b/sysdeps/mach/hurd/munlockall.c new file mode 100644 index 0000000..615b77f --- /dev/null +++ b/sysdeps/mach/hurd/munlockall.c @@ -0,0 +1,40 @@ +/* munlockall -- undo the effects of all prior mlock calls. Hurd version. + Copyright (C) 2001-2018 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 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 <sys/types.h> +#include <sys/mman.h> +#include <errno.h> +#include <hurd.h> +#include <mach/mach_host.h> + +/* Undo the effects of all prior mlock calls in this process. */ + +int +munlockall (void) +{ + mach_port_t host; + error_t err; + + err = __get_privileged_ports (&host, NULL); + if (err) + return __hurd_fail (err); + + err = __vm_wire_all (host, __mach_task_self (), VM_WIRE_NONE); + __mach_port_deallocate (__mach_task_self (), host); + return err ? __hurd_fail (err) : 0; +} |