mono/utils/mono-machine.h

   1 /**
   2  * \file
   3  * machine definitions
   4  *
   5  * Authors:
   6  *      Rodrigo Kumpera (kumpera@gmail.com)
   7  *
   8  * Copyright (c) 2011 Novell, Inc (http://www.novell.com)
   9  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
  10  */
  11
  12 #ifndef __MONO_MONO_MACHINE_H__
  13 #define __MONO_MONO_MACHINE_H__
  14
  15 /* C type matching the size of a machine register. Not always the same as 'int' */
  16 /* Note that member 'p' of MonoInst must be the same type, as OP_PCONST is defined
  17  * as one of the OP_ICONST types, so inst_c0 must be the same as inst_p0
  18  */
  19
  20 #include "config.h"
  21 #include <glib.h>
  22
  23 // __ILP32__ means integer, long, and pointers are 32bits, and nothing about registers.
  24 // MONO_ARCH_ILP32 means integer, long, and pointers are 32bits, and 64bit registers.
  25 // This is for example x32, arm6432, mipsn32, Alpha/NT.
  26 #ifdef MONO_ARCH_ILP32
  27 typedef gint64 host_mgreg_t;
  28 typedef guint64 host_umgreg_t;
  29 #else
  30 typedef gssize host_mgreg_t;
  31 typedef gsize host_umgreg_t;
  32 #endif
  33
  34 /* SIZEOF_REGISTER      ... machine register size of target machine
  35  * TARGET_SIZEOF_VOID_P ... pointer size of target machine
  36  *
  37  * SIZEOF_REGISTER is usually the same as TARGET_SIZEOF_VOID_P, except when MONO_ARCH_ILP32 is defined
  38  */
  39 #if SIZEOF_REGISTER == 4
  40 typedef gint32 target_mgreg_t;
  41 #else
  42 typedef gint64 target_mgreg_t;
  43 #endif
  44
  45 /* Alignment for MonoArray.vector */
  46 #if defined(_AIX)
  47 /*
  48  * HACK: doubles in structs always align to 4 on AIX... even on 64-bit,
  49  * which is bad for aligned usage like what System.Array.FastCopy does
  50  */
  51 typedef guint64 mono_64bitaligned_t;
  52 #else
  53 typedef double mono_64bitaligned_t;
  54 #endif
  55
  56 #endif /* __MONO_MONO_MACHINE_H__ */