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      1   1.1  mrg /* The host_hooks data structure.
      2  1.12  mrg    Copyright (C) 2003-2022 Free Software Foundation, Inc.
      3   1.1  mrg 
      4   1.1  mrg This file is part of GCC.
      5   1.1  mrg 
      6   1.1  mrg GCC is free software; you can redistribute it and/or modify
      7   1.1  mrg it under the terms of the GNU General Public License as published by
      8   1.1  mrg the Free Software Foundation; either version 3, or (at your option)
      9   1.1  mrg any later version.
     10   1.1  mrg 
     11   1.1  mrg GCC is distributed in the hope that it will be useful,
     12   1.1  mrg but WITHOUT ANY WARRANTY; without even the implied warranty of
     13   1.1  mrg MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14   1.1  mrg GNU General Public License for more details.
     15   1.1  mrg 
     16   1.1  mrg You should have received a copy of the GNU General Public License
     17   1.1  mrg along with GCC; see the file COPYING3.  If not see
     18   1.1  mrg <http://www.gnu.org/licenses/>.  */
     19   1.1  mrg 
     20   1.1  mrg #ifndef GCC_HOST_HOOKS_H
     21   1.1  mrg #define GCC_HOST_HOOKS_H
     22   1.1  mrg 
     23   1.1  mrg struct host_hooks
     24   1.1  mrg {
     25   1.1  mrg   void (*extra_signals) (void);
     26   1.1  mrg 
     27   1.1  mrg   /* Identify an address that's likely to be free in a subsequent invocation
     28   1.1  mrg      of the compiler.  The area should be able to hold SIZE bytes.  FD is an
     29   1.1  mrg      open file descriptor if the host would like to probe with mmap.  */
     30   1.1  mrg   void * (*gt_pch_get_address) (size_t size, int fd);
     31   1.1  mrg 
     32   1.1  mrg   /* ADDR is an address returned by gt_pch_get_address.  Attempt to allocate
     33  1.12  mrg      SIZE bytes at the same address (preferrably) or some other address
     34  1.12  mrg      and load it with the data from FD at OFFSET.  Return -1 if we couldn't
     35  1.12  mrg      allocate memory, otherwise update ADDR to the actual address where it got
     36  1.12  mrg      allocated, return 0 if the memory is allocated but the data not loaded,
     37  1.12  mrg      return 1 if done.  */
     38  1.12  mrg   int (*gt_pch_use_address) (void *&addr, size_t size, int fd, size_t offset);
     39   1.1  mrg 
     40   1.1  mrg   /*  Return the alignment required for allocating virtual memory. Usually
     41   1.1  mrg       this is the same as pagesize.  */
     42   1.1  mrg   size_t (*gt_pch_alloc_granularity) (void);
     43   1.1  mrg 
     44   1.1  mrg   /* Whenever you add entries here, make sure you adjust hosthooks-def.h.  */
     45   1.1  mrg };
     46   1.1  mrg 
     47   1.1  mrg /* Each host provides its own.  */
     48   1.1  mrg extern const struct host_hooks host_hooks;
     49   1.1  mrg 
     50   1.1  mrg #endif /* GCC_LANG_HOOKS_H */
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