| /* -----------------------------------------------------------------*-C-*- | |
| libffi @VERSION@ | |
| - Copyright (c) 2011, 2014, 2019, 2021, 2022, 2024, 2025 Anthony Green | |
| - 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 ``Software''), to deal in the Software without | |
| restriction, including without limitation the rights to use, copy, | |
| modify, merge, publish, distribute, sublicense, and/or sell copies | |
| of the Software, and to permit persons to whom the Software is | |
| furnished to do so, subject to the following conditions: | |
| 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 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. | |
| ----------------------------------------------------------------------- */ | |
| /* ------------------------------------------------------------------- | |
| Most of the API is documented in doc/libffi.texi. | |
| The raw API is designed to bypass some of the argument packing and | |
| unpacking on architectures for which it can be avoided. Routines | |
| are provided to emulate the raw API if the underlying platform | |
| doesn't allow faster implementation. | |
| More details on the raw 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 | |
| #ifdef __cplusplus | |
| extern "C" { | |
| #endif | |
| /* Specify which architecture libffi is configured for. */ | |
| #ifndef @TARGET@ | |
| #define @TARGET@ | |
| #endif | |
| /* ---- System configuration information --------------------------------- */ | |
| /* 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 @HAVE_LONG_DOUBLE@ | |
| #define FFI_TYPE_LONGDOUBLE 4 | |
| #else | |
| #define FFI_TYPE_LONGDOUBLE FFI_TYPE_DOUBLE | |
| #endif | |
| #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 | |
| #define FFI_TYPE_POINTER 14 | |
| #define FFI_TYPE_COMPLEX 15 | |
| /* This should always refer to the last type code (for sanity checks). */ | |
| #define FFI_TYPE_LAST FFI_TYPE_COMPLEX | |
| #include <ffitarget.h> | |
| #ifndef LIBFFI_ASM | |
| #if defined(_MSC_VER) && !defined(__clang__) | |
| #define __attribute__(X) | |
| #endif | |
| #include <stddef.h> | |
| #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. */ | |
| #define FFI_64_BIT_MAX 9223372036854775807 | |
| #ifdef LONG_LONG_MAX | |
| # define FFI_LONG_LONG_MAX LONG_LONG_MAX | |
| #else | |
| # ifdef LLONG_MAX | |
| # define FFI_LONG_LONG_MAX LLONG_MAX | |
| # ifdef _AIX52 /* or newer has C99 LLONG_MAX */ | |
| # undef FFI_64_BIT_MAX | |
| # define FFI_64_BIT_MAX 9223372036854775807LL | |
| # endif /* _AIX52 or newer */ | |
| # else | |
| # ifdef __GNUC__ | |
| # define FFI_LONG_LONG_MAX __LONG_LONG_MAX__ | |
| # endif | |
| # ifdef _AIX /* AIX 5.1 and earlier have LONGLONG_MAX */ | |
| # ifndef __PPC64__ | |
| # if defined (__IBMC__) || defined (__IBMCPP__) | |
| # define FFI_LONG_LONG_MAX LONGLONG_MAX | |
| # endif | |
| # endif /* __PPC64__ */ | |
| # undef FFI_64_BIT_MAX | |
| # define FFI_64_BIT_MAX 9223372036854775807LL | |
| # endif | |
| # endif | |
| #endif | |
| /* The closure code assumes that this works on pointers, i.e. a size_t | |
| can hold a pointer. */ | |
| typedef struct _ffi_type | |
| { | |
| size_t size; | |
| unsigned short alignment; | |
| unsigned short type; | |
| struct _ffi_type **elements; | |
| } ffi_type; | |
| /* Need minimal decorations for DLLs to work on Windows. GCC has | |
| autoimport and autoexport. Always mark externally visible symbols | |
| as dllimport for MSVC clients, even if it means an extra indirection | |
| when using the static version of the library. | |
| Besides, as a workaround, they can define FFI_BUILDING if they | |
| *know* they are going to link with the static library. */ | |
| #if defined _MSC_VER && !defined(FFI_STATIC_BUILD) | |
| # if defined FFI_BUILDING_DLL /* Building libffi.DLL with msvcc.sh */ | |
| # define FFI_API __declspec(dllexport) | |
| # else /* Importing libffi.DLL */ | |
| # define FFI_API __declspec(dllimport) | |
| # endif | |
| #else | |
| # define FFI_API | |
| #endif | |
| /* The externally visible type declarations also need the MSVC DLL | |
| decorations, or they will not be exported from the object file. */ | |
| #if defined LIBFFI_HIDE_BASIC_TYPES | |
| # define FFI_EXTERN FFI_API | |
| #else | |
| # define FFI_EXTERN extern FFI_API | |
| #endif | |
| #ifndef LIBFFI_HIDE_BASIC_TYPES | |
| #if SCHAR_MAX == 127 | |
| # define ffi_type_uchar ffi_type_uint8 | |
| # define ffi_type_schar ffi_type_sint8 | |
| #else | |
| #error "char size not supported" | |
| #endif | |
| #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 | |
| #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 | |
| #if LONG_MAX == 2147483647 | |
| # if FFI_LONG_LONG_MAX != FFI_64_BIT_MAX | |
| #error "no 64-bit data type supported" | |
| # endif | |
| #elif LONG_MAX != FFI_64_BIT_MAX | |
| #error "long size not supported" | |
| #endif | |
| #if LONG_MAX == 2147483647 | |
| # define ffi_type_ulong ffi_type_uint32 | |
| # define ffi_type_slong ffi_type_sint32 | |
| #elif LONG_MAX == FFI_64_BIT_MAX | |
| # define ffi_type_ulong ffi_type_uint64 | |
| # define ffi_type_slong ffi_type_sint64 | |
| #else | |
| #error "long size not supported" | |
| #endif | |
| /* These are defined in types.c. */ | |
| FFI_EXTERN ffi_type ffi_type_void; | |
| FFI_EXTERN ffi_type ffi_type_uint8; | |
| FFI_EXTERN ffi_type ffi_type_sint8; | |
| FFI_EXTERN ffi_type ffi_type_uint16; | |
| FFI_EXTERN ffi_type ffi_type_sint16; | |
| FFI_EXTERN ffi_type ffi_type_uint32; | |
| FFI_EXTERN ffi_type ffi_type_sint32; | |
| FFI_EXTERN ffi_type ffi_type_uint64; | |
| FFI_EXTERN ffi_type ffi_type_sint64; | |
| FFI_EXTERN ffi_type ffi_type_float; | |
| FFI_EXTERN ffi_type ffi_type_double; | |
| FFI_EXTERN ffi_type ffi_type_pointer; | |
| FFI_EXTERN ffi_type ffi_type_longdouble; | |
| #ifdef FFI_TARGET_HAS_COMPLEX_TYPE | |
| FFI_EXTERN ffi_type ffi_type_complex_float; | |
| FFI_EXTERN ffi_type ffi_type_complex_double; | |
| FFI_EXTERN ffi_type ffi_type_complex_longdouble; | |
| #endif | |
| #endif /* LIBFFI_HIDE_BASIC_TYPES */ | |
| typedef enum { | |
| FFI_OK = 0, | |
| FFI_BAD_TYPEDEF, | |
| FFI_BAD_ABI, | |
| FFI_BAD_ARGTYPE | |
| } ffi_status; | |
| typedef struct { | |
| ffi_abi abi; | |
| unsigned nargs; | |
| ffi_type **arg_types; | |
| ffi_type *rtype; | |
| unsigned bytes; | |
| unsigned flags; | |
| #ifdef FFI_EXTRA_CIF_FIELDS | |
| FFI_EXTRA_CIF_FIELDS; | |
| #endif | |
| } ffi_cif; | |
| /* ---- Definitions for the raw API -------------------------------------- */ | |
| #ifndef FFI_SIZEOF_ARG | |
| # if LONG_MAX == 2147483647 | |
| # define FFI_SIZEOF_ARG 4 | |
| # elif LONG_MAX == FFI_64_BIT_MAX | |
| # define FFI_SIZEOF_ARG 8 | |
| # endif | |
| #endif | |
| #ifndef FFI_SIZEOF_JAVA_RAW | |
| # define FFI_SIZEOF_JAVA_RAW FFI_SIZEOF_ARG | |
| #endif | |
| typedef union { | |
| ffi_sarg sint; | |
| ffi_arg uint; | |
| float flt; | |
| char data[FFI_SIZEOF_ARG]; | |
| void* ptr; | |
| } ffi_raw; | |
| #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 | |
| FFI_API | |
| void ffi_raw_call (ffi_cif *cif, | |
| void (*fn)(void), | |
| void *rvalue, | |
| ffi_raw *avalue); | |
| FFI_API void ffi_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_raw *raw); | |
| FFI_API void ffi_raw_to_ptrarray (ffi_cif *cif, ffi_raw *raw, void **args); | |
| FFI_API 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. */ | |
| #if !FFI_NATIVE_RAW_API | |
| FFI_API | |
| void ffi_java_raw_call (ffi_cif *cif, | |
| void (*fn)(void), | |
| void *rvalue, | |
| ffi_java_raw *avalue) __attribute__((deprecated)); | |
| #endif | |
| FFI_API | |
| void ffi_java_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_java_raw *raw) __attribute__((deprecated)); | |
| FFI_API | |
| void ffi_java_raw_to_ptrarray (ffi_cif *cif, ffi_java_raw *raw, void **args) __attribute__((deprecated)); | |
| FFI_API | |
| size_t ffi_java_raw_size (ffi_cif *cif) __attribute__((deprecated)); | |
| /* ---- Version API ------------------------------------------------------ */ | |
| #define FFI_VERSION_STRING "@FFI_VERSION_STRING@" | |
| #define FFI_VERSION_NUMBER @FFI_VERSION_NUMBER@ | |
| #ifndef LIBFFI_ASM | |
| /* Return a version string. */ | |
| FFI_API const char *ffi_get_version (void); | |
| /* Return the version as an unsigned long value: (x * 10000 + y * 100 + z) */ | |
| FFI_API unsigned long ffi_get_version_number (void); | |
| #endif | |
| /* ---- Internals API ---------------------------------------------------- */ | |
| FFI_API unsigned int ffi_get_default_abi (void); | |
| FFI_API size_t ffi_get_closure_size (void); | |
| /* ---- Definitions for closures ----------------------------------------- */ | |
| #if FFI_CLOSURES | |
| #ifdef _MSC_VER | |
| __declspec(align(8)) | |
| #endif | |
| typedef struct { | |
| #if @FFI_EXEC_TRAMPOLINE_TABLE@ | |
| void *trampoline_table; | |
| void *trampoline_table_entry; | |
| #else | |
| union { | |
| char tramp[FFI_TRAMPOLINE_SIZE]; | |
| void *ftramp; | |
| }; | |
| #endif | |
| ffi_cif *cif; | |
| void (*fun)(ffi_cif*,void*,void**,void*); | |
| void *user_data; | |
| #if defined(_MSC_VER) && defined(_M_IX86) | |
| void *padding; | |
| #endif | |
| } ffi_closure | |
| #ifdef __GNUC__ | |
| __attribute__((aligned (8))) | |
| #endif | |
| ; | |
| #ifndef __GNUC__ | |
| # ifdef __sgi | |
| # pragma pack 0 | |
| # endif | |
| #endif | |
| FFI_API void *ffi_closure_alloc (size_t size, void **code); | |
| FFI_API void ffi_closure_free (void *); | |
| FFI_API ffi_status | |
| ffi_prep_closure (ffi_closure*, | |
| ffi_cif *, | |
| void (*fun)(ffi_cif*,void*,void**,void*), | |
| void *user_data) | |
| #if defined(__GNUC__) && (((__GNUC__ * 100) + __GNUC_MINOR__) >= 405) | |
| __attribute__((deprecated ("use ffi_prep_closure_loc instead"))) | |
| #elif defined(__GNUC__) && __GNUC__ >= 3 | |
| __attribute__((deprecated)) | |
| #endif | |
| ; | |
| FFI_API ffi_status | |
| ffi_prep_closure_loc (ffi_closure*, | |
| ffi_cif *, | |
| void (*fun)(ffi_cif*,void*,void**,void*), | |
| void *user_data, | |
| void *codeloc); | |
| #ifdef __sgi | |
| # pragma pack 8 | |
| #endif | |
| typedef struct { | |
| #if @FFI_EXEC_TRAMPOLINE_TABLE@ | |
| void *trampoline_table; | |
| void *trampoline_table_entry; | |
| #else | |
| char tramp[FFI_TRAMPOLINE_SIZE]; | |
| #endif | |
| 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 translation, void** -> ffi_raw*. */ | |
| void (*translate_args)(ffi_cif*,void*,void**,void*); | |
| void *this_closure; | |
| #endif | |
| void (*fun)(ffi_cif*,void*,ffi_raw*,void*); | |
| void *user_data; | |
| } ffi_raw_closure; | |
| typedef struct { | |
| #if @FFI_EXEC_TRAMPOLINE_TABLE@ | |
| void *trampoline_table; | |
| void *trampoline_table_entry; | |
| #else | |
| char tramp[FFI_TRAMPOLINE_SIZE]; | |
| #endif | |
| 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 translation, 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_API ffi_status | |
| ffi_prep_raw_closure (ffi_raw_closure*, | |
| ffi_cif *cif, | |
| void (*fun)(ffi_cif*,void*,ffi_raw*,void*), | |
| void *user_data); | |
| FFI_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); | |
| #if !FFI_NATIVE_RAW_API | |
| FFI_API 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) __attribute__((deprecated)); | |
| FFI_API 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) __attribute__((deprecated)); | |
| #endif | |
| #endif /* FFI_CLOSURES */ | |
| #ifdef FFI_GO_CLOSURES | |
| typedef struct { | |
| void *tramp; | |
| ffi_cif *cif; | |
| void (*fun)(ffi_cif*,void*,void**,void*); | |
| } ffi_go_closure; | |
| FFI_API ffi_status ffi_prep_go_closure (ffi_go_closure*, ffi_cif *, | |
| void (*fun)(ffi_cif*,void*,void**,void*)); | |
| FFI_API void ffi_call_go (ffi_cif *cif, void (*fn)(void), void *rvalue, | |
| void **avalue, void *closure); | |
| #endif /* FFI_GO_CLOSURES */ | |
| /* ---- Public interface definition -------------------------------------- */ | |
| FFI_API | |
| ffi_status ffi_prep_cif(ffi_cif *cif, | |
| ffi_abi abi, | |
| unsigned int nargs, | |
| ffi_type *rtype, | |
| ffi_type **atypes); | |
| FFI_API | |
| ffi_status ffi_prep_cif_var(ffi_cif *cif, | |
| ffi_abi abi, | |
| unsigned int nfixedargs, | |
| unsigned int ntotalargs, | |
| ffi_type *rtype, | |
| ffi_type **atypes); | |
| FFI_API | |
| void ffi_call(ffi_cif *cif, | |
| void (*fn)(void), | |
| void *rvalue, | |
| void **avalue); | |
| FFI_API | |
| ffi_status ffi_get_struct_offsets (ffi_abi abi, ffi_type *struct_type, | |
| size_t *offsets); | |
| /* Convert between closure and function pointers. */ | |
| #if defined(PA_LINUX) || defined(PA_HPUX) | |
| #define FFI_FN(f) ((void (*)(void))((unsigned int)(f) | 2)) | |
| #define FFI_CL(f) ((void *)((unsigned int)(f) & ~3)) | |
| #else | |
| #define FFI_FN(f) ((void (*)(void))f) | |
| #define FFI_CL(f) ((void *)(f)) | |
| #endif | |
| /* ---- Definitions shared with assembly code ---------------------------- */ | |
| #endif | |
| #ifdef __cplusplus | |
| } | |
| #endif | |
| #endif |