diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/munmap.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/munmap.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/munmap.c b/REORG.TODO/sysdeps/mach/munmap.c new file mode 100644 index 0000000000..b5fdaeaf1b --- /dev/null +++ b/REORG.TODO/sysdeps/mach/munmap.c @@ -0,0 +1,46 @@ +/* Copyright (C) 1994-2017 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 <mach.h> + +/* Deallocate any mapping for the region starting at ADDR and extending LEN + bytes. Returns 0 if successful, -1 for errors (and sets errno). */ + +int +__munmap (__ptr_t addr, size_t len) +{ + kern_return_t err; + + if (addr == 0) + { + errno = EINVAL; + return -1; + } + + if (err = __vm_deallocate (__mach_task_self (), + (vm_address_t) addr, (vm_size_t) len)) + { + errno = err; + return -1; + } + return 0; +} + +weak_alias (__munmap, munmap) |