kern/linux/aligned.hh

   1 /*
   2  * Copyright (c) 2004 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef __KERN_LINUX_ALIGNED_HH__
  30 #define __KERN_LINUX_ALIGNED_HH__
  31
  32
  33 #include "sim/host.hh"
  34 #include "targetarch/isa_traits.hh"
  35
  36 /* GCC 3.3.X has a bug in which attributes+typedefs don't work. 3.2.X is fine
  37  * as in 3.4.X, but the bug is marked will not fix in 3.3.X so here is
  38  * the work around.
  39  */
  40 #if __GNUC__ == 3 && __GNUC_MINOR__  != 3
  41 typedef uint64_t uint64_ta __attribute__ ((aligned (8))) ;
  42 typedef int64_t int64_ta __attribute__ ((aligned (8))) ;
  43 typedef Addr Addr_a __attribute__ ((aligned (8))) ;
  44 #else
  45 #define uint64_ta uint64_t __attribute__ ((aligned (8)))
  46 #define int64_ta int64_t __attribute__ ((aligned (8)))
  47 #define Addr_a Addr __attribute__ ((aligned (8)))
  48 #endif /* __GNUC__ __GNUC_MINOR__ */
  49
  50 #endif /* __KERN_LINUX_ALIGNED_HH__ */