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/* The host_hooks data structure.

   Copyright 2003, 2004, 2007 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 3, 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 COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

#ifndef GCC_HOST_HOOKS_H

#define GCC_HOST_HOOKS_H

struct host_hooks

{

  void (*extra_signals) (void);

  /* Identify an address that's likely to be free in a subsequent invocation

     of the compiler.  The area should be able to hold SIZE bytes.  FD is an

     open file descriptor if the host would like to probe with mmap.  */

  void * (*gt_pch_get_address) (size_t size, int fd);

  /* ADDR is an address returned by gt_pch_get_address.  Attempt to allocate

     SIZE bytes at the same address and load it with the data from FD at

     OFFSET.  Return -1 if we couldn't allocate memory at ADDR, return 0

     if the memory is allocated but the data not loaded, return 1 if done.  */

  int (*gt_pch_use_address) (void *addr, size_t size, int fd, size_t offset);

  /*  Return the alignment required for allocating virtual memory. Usually

      this is the same as pagesize.  */

  size_t (*gt_pch_alloc_granularity) (void);

  /* Whenever you add entries here, make sure you adjust hosthooks-def.h.  */

};

/* Each host provides its own.  */

extern const struct host_hooks host_hooks;

#endif /* GCC_LANG_HOOKS_H */