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/* -----------------------------------------------------------------------
ffi_common.h - Copyright (C) 2011, 2012, 2013 Anthony Green
Copyright (C) 2007 Free Software Foundation, Inc
Copyright (c) 1996 Red Hat, Inc.
Common internal definitions and macros. Only necessary for building
libffi.
----------------------------------------------------------------------- */
#ifndef FFI_COMMON_H
#define FFI_COMMON_H
#ifdef __cplusplus
extern "C" {
#endif
#include <fficonfig.h>
/* Do not move this. Some versions of AIX are very picky about where
this is positioned. */
#ifdef __GNUC__
# if HAVE_ALLOCA_H
# include <alloca.h>
# else
/* mingw64 defines this already in malloc.h. */
# ifndef alloca
# define alloca __builtin_alloca
# endif
# endif
# define MAYBE_UNUSED __attribute__((__unused__))
#else
# define MAYBE_UNUSED
# if HAVE_ALLOCA_H
# include <alloca.h>
# else
# ifdef _AIX
# pragma alloca
# else
# ifndef alloca /* predefined by HP cc +Olibcalls */
# ifdef _MSC_VER
# define alloca _alloca
# else
char *alloca ();
# endif
# endif
# endif
# endif
#endif
/* Check for the existence of memcpy. */
#if STDC_HEADERS
# include <string.h>
#else
# ifndef HAVE_MEMCPY
# define memcpy(d, s, n) bcopy ((s), (d), (n))
# endif
#endif
#if defined(FFI_DEBUG)
#include <stdio.h>
#endif
#ifdef FFI_DEBUG
void ffi_assert(char *expr, char *file, int line);
void ffi_stop_here(void);
void ffi_type_test(ffi_type *a, char *file, int line);
#define FFI_ASSERT(x) ((x) ? (void)0 : ffi_assert(#x, __FILE__,__LINE__))
#define FFI_ASSERT_AT(x, f, l) ((x) ? 0 : ffi_assert(#x, (f), (l)))
#define FFI_ASSERT_VALID_TYPE(x) ffi_type_test (x, __FILE__, __LINE__)
#else
#define FFI_ASSERT(x)
#define FFI_ASSERT_AT(x, f, l)
#define FFI_ASSERT_VALID_TYPE(x)
#endif
/* v cast to size_t and aligned up to a multiple of a */
#define FFI_ALIGN(v, a) (((((size_t) (v))-1) | ((a)-1))+1)
/* v cast to size_t and aligned down to a multiple of a */
#define FFI_ALIGN_DOWN(v, a) (((size_t) (v)) & -a)
/* Perform machine dependent cif processing */
ffi_status ffi_prep_cif_machdep(ffi_cif *cif);
ffi_status ffi_prep_cif_machdep_var(ffi_cif *cif,
unsigned int nfixedargs, unsigned int ntotalargs);
#if HAVE_LONG_DOUBLE_VARIANT
/* Used to adjust size/alignment of ffi types. */
void ffi_prep_types (ffi_abi abi);
#endif
/* Used internally, but overridden by some architectures */
ffi_status ffi_prep_cif_core(ffi_cif *cif,
ffi_abi abi,
unsigned int isvariadic,
unsigned int nfixedargs,
unsigned int ntotalargs,
ffi_type *rtype,
ffi_type **atypes);
/* Translate a data pointer to a code pointer. Needed for closures on
some targets. */
void *ffi_data_to_code_pointer (void *data) FFI_HIDDEN;
/* Extended cif, used in callback from assembly routine */
typedef struct
{
ffi_cif *cif;
void *rvalue;
void **avalue;
} extended_cif;
/* Terse sized type definitions. */
#if defined(_MSC_VER) || defined(__sgi) || defined(__SUNPRO_C)
typedef unsigned char UINT8;
typedef signed char SINT8;
typedef unsigned short UINT16;
typedef signed short SINT16;
typedef unsigned int UINT32;
typedef signed int SINT32;
# ifdef _MSC_VER
typedef unsigned __int64 UINT64;
typedef signed __int64 SINT64;
# else
# include <inttypes.h>
typedef uint64_t UINT64;
typedef int64_t SINT64;
# endif
#else
typedef unsigned int UINT8 __attribute__((__mode__(__QI__)));
typedef signed int SINT8 __attribute__((__mode__(__QI__)));
typedef unsigned int UINT16 __attribute__((__mode__(__HI__)));
typedef signed int SINT16 __attribute__((__mode__(__HI__)));
typedef unsigned int UINT32 __attribute__((__mode__(__SI__)));
typedef signed int SINT32 __attribute__((__mode__(__SI__)));
typedef unsigned int UINT64 __attribute__((__mode__(__DI__)));
typedef signed int SINT64 __attribute__((__mode__(__DI__)));
#endif
typedef float FLOAT32;
#ifndef __GNUC__
#define __builtin_expect(x, expected_value) (x)
#endif
#define LIKELY(x) __builtin_expect(!!(x),1)
#define UNLIKELY(x) __builtin_expect((x)!=0,0)
#ifdef __cplusplus
}
#endif
#endif
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