diff options
Diffstat (limited to 'contrib/gcc/config/host-darwin.c')
-rw-r--r-- | contrib/gcc/config/host-darwin.c | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/contrib/gcc/config/host-darwin.c b/contrib/gcc/config/host-darwin.c deleted file mode 100644 index d8819515476a..000000000000 --- a/contrib/gcc/config/host-darwin.c +++ /dev/null @@ -1,79 +0,0 @@ -/* Darwin host-specific hook definitions. - Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. - - This file is part of GCC. - - GCC is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 2, or (at your - option) any later version. - - GCC 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 General Public - License for more details. - - You should have received a copy of the GNU General Public License - along with GCC; see the file COPYING. If not, write to the - Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, - MA 02110-1301, USA. */ - -#include "config.h" -#include "system.h" -#include "coretypes.h" -#include <sys/mman.h> -#include "toplev.h" -#include "config/host-darwin.h" - -/* Yes, this is really supposed to work. */ -static char pch_address_space[1024*1024*1024] __attribute__((aligned (4096))); - -/* Return the address of the PCH address space, if the PCH will fit in it. */ - -void * -darwin_gt_pch_get_address (size_t sz, int fd ATTRIBUTE_UNUSED) -{ - if (sz <= sizeof (pch_address_space)) - return pch_address_space; - else - return NULL; -} - -/* Check ADDR and SZ for validity, and deallocate (using munmap) that part of - pch_address_space beyond SZ. */ - -int -darwin_gt_pch_use_address (void *addr, size_t sz, int fd, size_t off) -{ - const size_t pagesize = getpagesize(); - void *mmap_result; - int ret; - - gcc_assert ((size_t)pch_address_space % pagesize == 0 - && sizeof (pch_address_space) % pagesize == 0); - - ret = (addr == pch_address_space && sz <= sizeof (pch_address_space)); - if (! ret) - sz = 0; - - /* Round the size to a whole page size. Normally this is a no-op. */ - sz = (sz + pagesize - 1) / pagesize * pagesize; - - if (munmap (pch_address_space + sz, sizeof (pch_address_space) - sz) != 0) - fatal_error ("couldn't unmap pch_address_space: %m"); - - if (ret) - { - mmap_result = mmap (addr, sz, - PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED, - fd, off); - - /* The file might not be mmap-able. */ - ret = mmap_result != (void *) MAP_FAILED; - - /* Sanity check for broken MAP_FIXED. */ - gcc_assert (!ret || mmap_result == addr); - } - - return ret; -} |