libffi/include/ffi_common.h

   1 /* -----------------------------------------------------------------------
   2    ffi_common.h - Copyright (c) 1996  Red Hat, Inc.
   3    Copyright (C) 2007 Free Software Foundation, Inc
   4
   5    Common internal definitions and macros. Only necessary for building
   6    libffi.
   7    ----------------------------------------------------------------------- */
   8
   9 #ifndef FFI_COMMON_H
  10 #define FFI_COMMON_H
  11
  12 #ifdef __cplusplus
  13 extern "C" {
  14 #endif
  15
  16 #include <fficonfig.h>
  17
  18 /* Do not move this. Some versions of AIX are very picky about where
  19    this is positioned. */
  20 #ifdef __GNUC__
  21 /* mingw64 defines this already in malloc.h. */
  22 #ifndef alloca
  23 # define alloca __builtin_alloca
  24 #endif
  25 # define MAYBE_UNUSED __attribute__((__unused__))
  26 #else
  27 # define MAYBE_UNUSED
  28 # if HAVE_ALLOCA_H
  29 #  include <alloca.h>
  30 # else
  31 #  ifdef _AIX
  32  #pragma alloca
  33 #  else
  34 #   ifndef alloca /* predefined by HP cc +Olibcalls */
  35 #    ifdef _MSC_VER
  36 #     define alloca _alloca
  37 #    else
  38 char *alloca ();
  39 #    endif
  40 #   endif
  41 #  endif
  42 # endif
  43 #endif
  44
  45 /* Check for the existence of memcpy. */
  46 #if STDC_HEADERS
  47 # include <string.h>
  48 #else
  49 # ifndef HAVE_MEMCPY
  50 #  define memcpy(d, s, n) bcopy ((s), (d), (n))
  51 # endif
  52 #endif
  53
  54 #if defined(FFI_DEBUG)
  55 #include <stdio.h>
  56 #endif
  57
  58 #ifdef FFI_DEBUG
  59 void ffi_assert(char *expr, char *file, int line);
  60 void ffi_stop_here(void);
  61 void ffi_type_test(ffi_type *a, char *file, int line);
  62
  63 #define FFI_ASSERT(x) ((x) ? (void)0 : ffi_assert(#x, __FILE__,__LINE__))
  64 #define FFI_ASSERT_AT(x, f, l) ((x) ? 0 : ffi_assert(#x, (f), (l)))
  65 #define FFI_ASSERT_VALID_TYPE(x) ffi_type_test (x, __FILE__, __LINE__)
  66 #else
  67 #define FFI_ASSERT(x)
  68 #define FFI_ASSERT_AT(x, f, l)
  69 #define FFI_ASSERT_VALID_TYPE(x)
  70 #endif
  71
  72 #define ALIGN(v, a)  (((((size_t) (v))-1) | ((a)-1))+1)
  73 #define ALIGN_DOWN(v, a) (((size_t) (v)) & -a)
  74
  75 /* Perform machine dependent cif processing */
  76 ffi_status ffi_prep_cif_machdep(ffi_cif *cif);
  77
  78 /* Extended cif, used in callback from assembly routine */
  79 typedef struct
  80 {
  81   ffi_cif *cif;
  82   void *rvalue;
  83   void **avalue;
  84 } extended_cif;
  85
  86 /* Terse sized type definitions.  */
  87 #if defined(_MSC_VER) || defined(__sgi)
  88 typedef unsigned char UINT8;
  89 typedef signed char   SINT8;
  90 typedef unsigned short UINT16;
  91 typedef signed short   SINT16;
  92 typedef unsigned int UINT32;
  93 typedef signed int   SINT32;
  94 # ifdef _MSC_VER
  95 typedef unsigned __int64 UINT64;
  96 typedef signed __int64   SINT64;
  97 # else
  98 # include <inttypes.h>
  99 typedef uint64_t UINT64;
 100 typedef int64_t  SINT64;
 101 # endif
 102 #else
 103 typedef unsigned int UINT8  __attribute__((__mode__(__QI__)));
 104 typedef signed int   SINT8  __attribute__((__mode__(__QI__)));
 105 typedef unsigned int UINT16 __attribute__((__mode__(__HI__)));
 106 typedef signed int   SINT16 __attribute__((__mode__(__HI__)));
 107 typedef unsigned int UINT32 __attribute__((__mode__(__SI__)));
 108 typedef signed int   SINT32 __attribute__((__mode__(__SI__)));
 109 typedef unsigned int UINT64 __attribute__((__mode__(__DI__)));
 110 typedef signed int   SINT64 __attribute__((__mode__(__DI__)));
 111 #endif
 112
 113 typedef float FLOAT32;
 114
 115
 116 #ifdef __cplusplus
 117 }
 118 #endif
 119
 120 #endif
 121
 122