mono/metadata/abi.c

   1 #include <config.h>
   2
   3 #include <mono/utils/mono-memory-model.h>
   4 #include <mono/metadata/abi-details.h>
   5
   6
   7 typedef struct {
   8         const char alignment [MONO_ALIGN_COUNT];
   9 } AbiDetails;
  10
  11
  12 #define DECLARE_ABI_DETAILS(I8, I16, I32, I64, F32, F64, PTR) \
  13 const static AbiDetails mono_abi_details = {    \
  14         { I8, I16, I32, I64, F32, F64, PTR }    \
  15 };      \
  16
  17 #ifdef MONO_CROSS_COMPILE
  18
  19 #if TARGET_WASM
  20
  21 DECLARE_ABI_DETAILS (1, 2, 4, 8, 4, 8, 4)
  22
  23 #else
  24
  25 #define DECL_OFFSET(struct,field)
  26 #define DECL_OFFSET2(struct,field,offset)
  27 #define DECL_ALIGN2(type,size) MONO_ALIGN_value_ ##type = size,
  28 #define DECL_SIZE(type)
  29 #define DECL_SIZE2(type,size)
  30
  31 enum {
  32 #include "object-offsets.h"
  33 };
  34
  35 DECLARE_ABI_DETAILS (
  36         MONO_ALIGN_value_gint8,
  37         MONO_ALIGN_value_gint16,
  38         MONO_ALIGN_value_gint32,
  39         MONO_ALIGN_value_gint64,
  40         MONO_ALIGN_value_float,
  41         MONO_ALIGN_value_double,
  42         MONO_ALIGN_value_gpointer)
  43
  44 #endif
  45
  46 #else
  47
  48 #define MONO_CURRENT_ABI_ALIGNOF_TYPEDEF(type) typedef struct { char c; type x; } Mono_Align_Struct_ ##type;
  49 #define MONO_CURRENT_ABI_ALIGNOF(type) ((int)G_STRUCT_OFFSET(Mono_Align_Struct_ ##type, x))
  50
  51 /* Needed by MONO_CURRENT_ABI_ALIGNOF */
  52 MONO_CURRENT_ABI_ALIGNOF_TYPEDEF(gint8)
  53 MONO_CURRENT_ABI_ALIGNOF_TYPEDEF(gint16)
  54 MONO_CURRENT_ABI_ALIGNOF_TYPEDEF(gint32)
  55 MONO_CURRENT_ABI_ALIGNOF_TYPEDEF(gint64)
  56 MONO_CURRENT_ABI_ALIGNOF_TYPEDEF(float)
  57 MONO_CURRENT_ABI_ALIGNOF_TYPEDEF(double)
  58 MONO_CURRENT_ABI_ALIGNOF_TYPEDEF(gpointer)
  59
  60 DECLARE_ABI_DETAILS (
  61         MONO_CURRENT_ABI_ALIGNOF (gint8),
  62         MONO_CURRENT_ABI_ALIGNOF (gint16),
  63         MONO_CURRENT_ABI_ALIGNOF (gint32),
  64         MONO_CURRENT_ABI_ALIGNOF (gint64),
  65         MONO_CURRENT_ABI_ALIGNOF (float),
  66         MONO_CURRENT_ABI_ALIGNOF (double),
  67         MONO_CURRENT_ABI_ALIGNOF (gpointer))
  68
  69 #endif
  70
  71 int
  72 mono_abi_alignment (CoreTypeAlign type)
  73 {
  74         return mono_abi_details.alignment [type];
  75 }