/* -----------------------------------------------------------------*-C-*-
- libffi @VERSION@ - Copyright (c) 1996-1999 Cygnus Solutions
-
- $Id: ffi.h.in,v 1.1 1999/08/08 22:58:30 green Exp $
+ libffi @VERSION@ - Copyright (c) 1996-2003, 2007, 2008 Red Hat, Inc.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- OTHER DEALINGS IN THE SOFTWARE.
+ THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */
+/* -------------------------------------------------------------------
+ The basic API is described in the README file.
+
+ The raw API is designed to bypass some of the argument packing
+ and unpacking on architectures for which it can be avoided.
+
+ The closure API allows interpreted functions to be packaged up
+ inside a C function pointer, so that they can be called as C functions,
+ with no understanding on the client side that they are interpreted.
+ It can also be used in other cases in which it is necessary to package
+ up a user specified parameter and a function pointer as a single
+ function pointer.
+
+ The closure API must be implemented in order to get its functionality,
+ e.g. for use by gij. Routines are provided to emulate the raw API
+ if the underlying platform doesn't allow faster implementation.
+
+ More details on the raw and cloure API can be found in:
+
+ http://gcc.gnu.org/ml/java/1999-q3/msg00138.html
+
+ and
+
+ http://gcc.gnu.org/ml/java/1999-q3/msg00174.html
+ -------------------------------------------------------------------- */
+
#ifndef LIBFFI_H
#define LIBFFI_H
#endif
/* Specify which architecture libffi is configured for. */
+#ifndef @TARGET@
#define @TARGET@
+#endif
/* ---- System configuration information --------------------------------- */
-#ifdef PACKAGE
-#define OLD_PACKAGE PACKAGE
-#undef PACKAGE
-#endif
-#ifdef VERSION
-#define OLD_VERSION VERSION
-#undef VERSION
-#endif
+#include <ffitarget.h>
-#include <fficonfig.h>
-
-#undef PACKAGE
-#undef VERSION
+#ifndef LIBFFI_ASM
-#ifdef OLD_PACKAGE
-#define PACKAGE OLD_PACKAGE
-#endif
-#ifdef OLD_VERSION
-#define VERSION OLD_VERSION
+#ifdef _MSC_VER
+#define __attribute__(X)
#endif
-#if !defined(LIBFFI_ASM)
#include <stddef.h>
-#if defined(FFI_DEBUG)
-#include <stdio.h>
-#endif
-#endif
-
-/* ---- Generic type definitions ----------------------------------------- */
-
-#define FLOAT32 float
-#define FLOAT64 double
-#define FLOAT80 long double
-
-#define UINT8 unsigned char
-#define SINT8 signed char
-
-#if SIZEOF_INT == 2
-
-#define UINT16 unsigned int
-#define SINT16 int
-#define ffi_type_uint ffi_type_uint16
-#define ffi_type_sint ffi_type_sint16
-
-#else
-#if SIZEOF_SHORT == 2
-
-#define UINT16 unsigned short
-#define SINT16 short
-#define ffi_type_ushort ffi_type_uint16
-#define ffi_type_sshort ffi_type_sint16
-
-#endif
-#endif
-
-#if SIZEOF_INT == 4
-
-#define UINT32 unsigned int
-#define SINT32 int
-#define ffi_type_uint ffi_type_uint32
-#define ffi_type_sint ffi_type_sint32
-
-#else
-#if SIZEOF_SHORT == 4
-
-#define UINT32 unsigned short
-#define SINT32 short
-#define ffi_type_ushort ffi_type_uint32
-#define ffi_type_sshort ffi_type_sint32
+#include <limits.h>
+/* LONG_LONG_MAX is not always defined (not if STRICT_ANSI, for example).
+ But we can find it either under the correct ANSI name, or under GNU
+ C's internal name. */
+#ifdef LONG_LONG_MAX
+# define FFI_LONG_LONG_MAX LONG_LONG_MAX
#else
-#if SIZEOF_LONG == 4
-
-#define UINT32 unsigned long
-#define SINT32 long
-#define ffi_type_ulong ffi_type_uint32
-#define ffi_type_slong ffi_type_sint32
-
-#endif
-#endif
+# ifdef LLONG_MAX
+# define FFI_LONG_LONG_MAX LLONG_MAX
+# else
+# ifdef __GNUC__
+# define FFI_LONG_LONG_MAX __LONG_LONG_MAX__
+# endif
+# endif
#endif
-#if SIZEOF_INT == 8
+/* The closure code assumes that this works on pointers, i.e. a size_t */
+/* can hold a pointer. */
-#define UINT64 unsigned int
-#define SINT64 int
-#define ffi_type_uint ffi_type_uint64
-#define ffi_type_sint ffi_type_sint64
-
-#else
-#if SIZEOF_LONG == 8
-
-#define UINT64 unsigned long
-#define SINT64 long
-#define ffi_type_ulong ffi_type_uint64
-#define ffi_type_slong ffi_type_sint64
+typedef struct _ffi_type
+{
+ size_t size;
+ unsigned short alignment;
+ unsigned short type;
+ struct _ffi_type **elements;
+} ffi_type;
+#ifndef LIBFFI_HIDE_BASIC_TYPES
+#if SCHAR_MAX == 127
+# define ffi_type_uchar ffi_type_uint8
+# define ffi_type_schar ffi_type_sint8
#else
-#if SIZEOF_LONG_LONG == 8
-
-#define UINT64 unsigned long long
-#define SINT64 long long
-#define ffi_type_ulong ffi_type_uint64
-#define ffi_type_slong ffi_type_sint64
-
-#endif
-#endif
+ #error "char size not supported"
#endif
-/* ---- System specific configurations ----------------------------------- */
-
-#ifdef MIPS
-#include <ffi_mips.h>
+#if SHRT_MAX == 32767
+# define ffi_type_ushort ffi_type_uint16
+# define ffi_type_sshort ffi_type_sint16
+#elif SHRT_MAX == 2147483647
+# define ffi_type_ushort ffi_type_uint32
+# define ffi_type_sshort ffi_type_sint32
#else
-#define SIZEOF_ARG SIZEOF_VOID_P
-#endif
-
-#ifndef LIBFFI_ASM
-
-/* ---- Generic type definitions ----------------------------------------- */
-
-#define ALIGN(v, a) (((((unsigned) (v))-1) | ((a)-1))+1)
-
-typedef enum ffi_abi {
-
- /* Leave this for debugging purposes */
- FFI_FIRST_ABI = 0,
-
- /* ---- Sparc -------------------- */
-#ifdef SPARC
- FFI_V8,
- FFI_DEFAULT_ABI = FFI_V8,
- FFI_V8PLUS,
- FFI_V9,
-#endif
-
- /* ---- Intel x86 ---------------- */
-#ifdef X86
- FFI_SYSV,
- FFI_DEFAULT_ABI = FFI_SYSV,
-#endif
-
- /* ---- Mips --------------------- */
-#ifdef MIPS
- FFI_O32,
- FFI_N32,
- FFI_N64,
-#endif
-
- /* ---- Alpha -------------------- */
-#ifdef ALPHA
- FFI_OSF,
- FFI_DEFAULT_ABI = FFI_OSF,
-#endif
-
- /* ---- Motorola m68k ------------ */
-#ifdef M68K
- FFI_SYSV,
- FFI_DEFAULT_ABI = FFI_SYSV,
+ #error "short size not supported"
+#endif
+
+#if INT_MAX == 32767
+# define ffi_type_uint ffi_type_uint16
+# define ffi_type_sint ffi_type_sint16
+#elif INT_MAX == 2147483647
+# define ffi_type_uint ffi_type_uint32
+# define ffi_type_sint ffi_type_sint32
+#elif INT_MAX == 9223372036854775807
+# define ffi_type_uint ffi_type_uint64
+# define ffi_type_sint ffi_type_sint64
+#else
+ #error "int size not supported"
#endif
- /* ---- PowerPC ------------------ */
-#ifdef POWERPC
- FFI_SYSV,
- FFI_GCC_SYSV,
- FFI_DEFAULT_ABI = FFI_GCC_SYSV,
+#if LONG_MAX == 2147483647
+# if FFI_LONG_LONG_MAX != 9223372036854775807
+ #error "no 64-bit data type supported"
+# endif
+#elif LONG_MAX != 9223372036854775807
+ #error "long size not supported"
#endif
- /* ---- ARM --------------------- */
-#ifdef ARM
- FFI_SYSV,
- FFI_DEFAULT_ABI = FFI_SYSV,
+#if LONG_MAX == 2147483647
+# define ffi_type_ulong ffi_type_uint32
+# define ffi_type_slong ffi_type_sint32
+#elif LONG_MAX == 9223372036854775807
+# define ffi_type_ulong ffi_type_uint64
+# define ffi_type_slong ffi_type_sint64
+#else
+ #error "long size not supported"
#endif
- /* Leave this for debugging purposes */
- FFI_LAST_ABI
-
-} ffi_abi;
-
-typedef struct _ffi_type
-{
- size_t size;
- unsigned short alignment;
- unsigned short type;
- /*@null@*/ struct _ffi_type **elements;
-} ffi_type;
-
-/* These are defined in ffi.c */
+/* These are defined in types.c */
extern ffi_type ffi_type_void;
extern ffi_type ffi_type_uint8;
extern ffi_type ffi_type_sint8;
extern ffi_type ffi_type_sint64;
extern ffi_type ffi_type_float;
extern ffi_type ffi_type_double;
-extern ffi_type ffi_type_longdouble;
extern ffi_type ffi_type_pointer;
-/* Characters are 8 bit integral types */
-#define ffi_type_schar ffi_type_sint8
-#define ffi_type_uchar ffi_type_uint8
+#if @HAVE_LONG_DOUBLE@
+extern ffi_type ffi_type_longdouble;
+#else
+#define ffi_type_longdouble ffi_type_double
+#endif
+#endif /* LIBFFI_HIDE_BASIC_TYPES */
typedef enum {
FFI_OK = 0,
FFI_BAD_TYPEDEF,
- FFI_BAD_ABI
+ FFI_BAD_ABI
} ffi_status;
typedef unsigned FFI_TYPE;
typedef struct {
ffi_abi abi;
unsigned nargs;
- /*@dependent@*/ ffi_type **arg_types;
- /*@dependent@*/ ffi_type *rtype;
+ ffi_type **arg_types;
+ ffi_type *rtype;
unsigned bytes;
unsigned flags;
-
-#ifdef MIPS
-#if _MIPS_SIM == _ABIN32
- unsigned rstruct_flag;
+#ifdef FFI_EXTRA_CIF_FIELDS
+ FFI_EXTRA_CIF_FIELDS;
#endif
-#endif
-
} ffi_cif;
/* ---- Definitions for the raw API -------------------------------------- */
-#if !FFI_NO_RAW_API
-
-#if SIZEOF_ARG == 4
-
-#define UINT_ARG UINT32
-#define SINT_ARG SINT32
-
+#ifndef FFI_SIZEOF_ARG
+# if LONG_MAX == 2147483647
+# define FFI_SIZEOF_ARG 4
+# elif LONG_MAX == 9223372036854775807
+# define FFI_SIZEOF_ARG 8
+# endif
#endif
-#if SIZEOF_ARG == 8
-
-#define UINT_ARG UINT64
-#define SINT_ARG SINT64
-
+#ifndef FFI_SIZEOF_JAVA_RAW
+# define FFI_SIZEOF_JAVA_RAW FFI_SIZEOF_ARG
#endif
typedef union {
- SINT_ARG sint;
- UINT_ARG uint;
- char data[SIZEOF_ARG];
- void* ptr;
+ ffi_sarg sint;
+ ffi_arg uint;
+ float flt;
+ char data[FFI_SIZEOF_ARG];
+ void* ptr;
} ffi_raw;
-void ffi_raw_call (/*@dependent@*/ ffi_cif *cif,
- void (*fn)(),
- /*@out@*/ void *rvalue,
- /*@dependent@*/ ffi_raw *avalue);
+#if FFI_SIZEOF_JAVA_RAW == 4 && FFI_SIZEOF_ARG == 8
+/* This is a special case for mips64/n32 ABI (and perhaps others) where
+ sizeof(void *) is 4 and FFI_SIZEOF_ARG is 8. */
+typedef union {
+ signed int sint;
+ unsigned int uint;
+ float flt;
+ char data[FFI_SIZEOF_JAVA_RAW];
+ void* ptr;
+} ffi_java_raw;
+#else
+typedef ffi_raw ffi_java_raw;
+#endif
+
+
+void ffi_raw_call (ffi_cif *cif,
+ void (*fn)(void),
+ void *rvalue,
+ ffi_raw *avalue);
void ffi_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_raw *raw);
void ffi_raw_to_ptrarray (ffi_cif *cif, ffi_raw *raw, void **args);
size_t ffi_raw_size (ffi_cif *cif);
+/* This is analogous to the raw API, except it uses Java parameter */
+/* packing, even on 64-bit machines. I.e. on 64-bit machines */
+/* longs and doubles are followed by an empty 64-bit word. */
+void ffi_java_raw_call (ffi_cif *cif,
+ void (*fn)(void),
+ void *rvalue,
+ ffi_java_raw *avalue);
-
-#endif /* !FFI_NO_RAW_API */
+void ffi_java_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_java_raw *raw);
+void ffi_java_raw_to_ptrarray (ffi_cif *cif, ffi_java_raw *raw, void **args);
+size_t ffi_java_raw_size (ffi_cif *cif);
/* ---- Definitions for closures ----------------------------------------- */
-#ifdef X86
-
-#define FFI_CLOSURES 1 /* x86 supports closures */
-#define FFI_TRAMPOLINE_SIZE 10
-#define FFI_NATIVE_RAW_API 1 /* and has native raw api support */
-
-#else
-
-#define FFI_CLOSURES 0
-#define FFI_NATIVE_RAW_API 0
-
-#endif
-
-
-
#if FFI_CLOSURES
+#ifdef _MSC_VER
+__declspec(align(8))
+#endif
typedef struct {
char tramp[FFI_TRAMPOLINE_SIZE];
ffi_cif *cif;
void (*fun)(ffi_cif*,void*,void**,void*);
void *user_data;
+#ifdef __GNUC__
+} ffi_closure __attribute__((aligned (8)));
+#else
} ffi_closure;
+#endif
+
+void *ffi_closure_alloc (size_t size, void **code);
+void ffi_closure_free (void *);
ffi_status
ffi_prep_closure (ffi_closure*,
void (*fun)(ffi_cif*,void*,void**,void*),
void *user_data);
-#if !FFI_NO_RAW_API
+ffi_status
+ffi_prep_closure_loc (ffi_closure*,
+ ffi_cif *,
+ void (*fun)(ffi_cif*,void*,void**,void*),
+ void *user_data,
+ void*codeloc);
typedef struct {
char tramp[FFI_TRAMPOLINE_SIZE];
} ffi_raw_closure;
+typedef struct {
+ char tramp[FFI_TRAMPOLINE_SIZE];
+
+ ffi_cif *cif;
+
+#if !FFI_NATIVE_RAW_API
+
+ /* if this is enabled, then a raw closure has the same layout
+ as a regular closure. We use this to install an intermediate
+ handler to do the transaltion, void** -> ffi_raw*. */
+
+ void (*translate_args)(ffi_cif*,void*,void**,void*);
+ void *this_closure;
+
+#endif
+
+ void (*fun)(ffi_cif*,void*,ffi_java_raw*,void*);
+ void *user_data;
+
+} ffi_java_raw_closure;
+
ffi_status
ffi_prep_raw_closure (ffi_raw_closure*,
ffi_cif *cif,
void (*fun)(ffi_cif*,void*,ffi_raw*,void*),
void *user_data);
-#endif /* !FFI_NO_RAW_API */
+ffi_status
+ffi_prep_raw_closure_loc (ffi_raw_closure*,
+ ffi_cif *cif,
+ void (*fun)(ffi_cif*,void*,ffi_raw*,void*),
+ void *user_data,
+ void *codeloc);
+
+ffi_status
+ffi_prep_java_raw_closure (ffi_java_raw_closure*,
+ ffi_cif *cif,
+ void (*fun)(ffi_cif*,void*,ffi_java_raw*,void*),
+ void *user_data);
+
+ffi_status
+ffi_prep_java_raw_closure_loc (ffi_java_raw_closure*,
+ ffi_cif *cif,
+ void (*fun)(ffi_cif*,void*,ffi_java_raw*,void*),
+ void *user_data,
+ void *codeloc);
+
#endif /* FFI_CLOSURES */
/* ---- Public interface definition -------------------------------------- */
-ffi_status ffi_prep_cif(/*@out@*/ /*@partial@*/ ffi_cif *cif,
+ffi_status ffi_prep_cif(ffi_cif *cif,
ffi_abi abi,
- unsigned int nargs,
- /*@dependent@*/ /*@out@*/ /*@partial@*/ ffi_type *rtype,
- /*@dependent@*/ ffi_type **atypes);
+ unsigned int nargs,
+ ffi_type *rtype,
+ ffi_type **atypes);
-void ffi_call(/*@dependent@*/ ffi_cif *cif,
- void (*fn)(),
- /*@out@*/ void *rvalue,
- /*@dependent@*/ void **avalue);
+void ffi_call(ffi_cif *cif,
+ void (*fn)(void),
+ void *rvalue,
+ void **avalue);
/* Useful for eliminating compiler warnings */
-#define FFI_FN(f) ((void (*)())f)
+#define FFI_FN(f) ((void (*)(void))f)
/* ---- Definitions shared with assembly code ---------------------------- */
#endif
+/* If these change, update src/mips/ffitarget.h. */
#define FFI_TYPE_VOID 0
#define FFI_TYPE_INT 1
#define FFI_TYPE_FLOAT 2
#define FFI_TYPE_DOUBLE 3
-#if SIZEOF_LONG_DOUBLE == SIZEOF_DOUBLE
-#define FFI_TYPE_LONGDOUBLE FFI_TYPE_DOUBLE
-#else
+#if @HAVE_LONG_DOUBLE@
#define FFI_TYPE_LONGDOUBLE 4
+#else
+#define FFI_TYPE_LONGDOUBLE FFI_TYPE_DOUBLE
#endif
-
-#define FFI_TYPE_UINT8 5 /* If this changes, update ffi_mips.h. */
-#define FFI_TYPE_SINT8 6 /* If this changes, update ffi_mips.h. */
+#define FFI_TYPE_UINT8 5
+#define FFI_TYPE_SINT8 6
#define FFI_TYPE_UINT16 7
#define FFI_TYPE_SINT16 8
#define FFI_TYPE_UINT32 9
#define FFI_TYPE_SINT32 10
#define FFI_TYPE_UINT64 11
#define FFI_TYPE_SINT64 12
-#define FFI_TYPE_STRUCT 13 /* If this changes, update ffi_mips.h. */
+#define FFI_TYPE_STRUCT 13
#define FFI_TYPE_POINTER 14
/* This should always refer to the last type code (for sanity checks) */
#endif
#endif
-
OSDN Git Service
