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/*
* Copyright 1993-1995 Bill Triggs <Bill.Triggs@inrialpes.fr>
* Copyright 1995-2017 Bruno Haible <bruno@clisp.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _AVCALL_INTERNAL_H
#error "Never use <avcall-alist.h> directly; include <avcall-internal.h> instead."
#endif
/* The platform indicator symbols (__i386__, etc.) come from
- "config.h" when compiling avcall-libapi.c,
- the GCC command line options when compiling avcall-$(CPU).c.
*/
/* These two variants of powerpc ABIs are quite different. */
#if defined(__powerpc__) && !defined(__powerpc64__)
#if defined(_AIX) || (defined(__MACH__) && defined(__APPLE__))
#define __powerpc_aix__ 1
#else
#define __powerpc_sysv4__ 1
#endif
#endif
/* The Unix and Windows variants of x86_64 ABIs are quite different. */
#if defined(__x86_64__)
#if defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
#define __x86_64_ms__ 1
#else
#define __x86_64_sysv__ 1
#endif
#endif
/*
* Definition of the ‘__av_alist’ type.
*/
/* Note: This struct must not contain members of type 'long' or 'unsigned long',
because in the mingw port we use precompiled code that assumes 'long' is
64-bit whereas avcall-libapi.c is then compiled by a compiler that has a
32-bit 'long' type. */
typedef struct
{
/* some av_... macros need these flags */
int flags;
/* function to be called */
__avword (*func)();
/* return type, address for the result */
void* raddr;
enum __AVtype rtype;
uintptr_t rsize;
/* current pointer into the args[] array */
__avword* aptr;
/* beginning of the args[] array */
__avword* args;
#if defined(__hppa__) && !defined(__hppa64__)
/* end of the args[] array */
__avword* args_end;
#endif
/* limit pointer into the args[] array */
__avword* eptr;
#if defined(__i386__) && 0
/* Filler word, needed if the numbers of words up to now in this structure */
/* is odd (because on MSVC, alignof(double) = 8, normally = 4). */
__avword filler1;
#endif
#if defined(__i386__) || defined(__m68k__) || (defined(__sparc__) && !defined(__sparc64__)) || (defined(__hppa__) && !defined(__hppa64__)) || defined(__arm__) || defined(__armhf__) || (defined(__powerpc__) && !defined(__powerpc64__)) || (defined(__s390__) && !defined(__s390x__))
/* temporary storage, used to split doubles into two words */
union {
double _double;
#if defined(__sparc__) && !defined(__sparc64__)
long long _longlong;
#endif
__avword words[2];
} tmp;
#endif
#if defined(__x86_64_sysv__)
#define __AV_IARG_NUM 6
/* store the integer arguments in an extra array */
unsigned int ianum;
__avword iargs[__AV_IARG_NUM];
#endif
#if defined(__mips__) && !defined(__mipsn32__) && !defined(__mips64__)
#define __AV_FARG_NUM 2
/* store the floating-point arguments in an extra array */
unsigned int anum;
unsigned int fanum;
unsigned int farg_mask; /* bitmask of those entries in fargs[] which have a float value */
unsigned int darg_mask; /* bitmask of those entries in dargs[] which have a double value */
float fargs[__AV_FARG_NUM];
double dargs[__AV_FARG_NUM];
#endif
#if defined(__mipsn32__) || defined(__mips64__)
/* store the floating-point arguments in an extra array */
int anum; /* redundant: (LIST).aptr = &(LIST).args[(LIST).anum] */
unsigned int farg_mask; /* bitmask of those entries in farg[] which have a value */
unsigned int darg_mask; /* bitmask of those entries in args[] which have a double value */
float fargs[8];
#endif
#if defined(__sparc64__)
/* store the floating-point arguments in an extra array */
int anum; /* redundant: (LIST).aptr = &(LIST).args[(LIST).anum] */
unsigned int darg_mask; /* bitmask of those entries in args[] which have a float or double value */
#endif
#if defined(__hppa64__)
unsigned int farg_mask; /* bitmask of those entries in args[] which have a float value */
unsigned int darg_mask; /* bitmask of those entries in args[] which have a double value */
#endif
#if defined(__armhf__)
#define __AV_IARG_NUM 4
/* The first __AV_IARG_NUM integer arguments are passed in registers, even if
some floating-point arguments have already been allocated on the stack. */
unsigned int ianum;
/* store the floating-point arguments in an extra array */
unsigned int fanum; /* number of fargs[] words that are occupied so far */
unsigned int farg_mask; /* bitmask of those entries in fargs[] which have a float value */
unsigned int darg_mask; /* bitmask of those entries in dargs[] which have a double value */
float fargs[16];
double dargs[8];
#endif
#if defined(__arm64__)
#define __AV_IARG_NUM 8
/* store the integer arguments in an extra array */
unsigned int ianum;
__avword iargs[__AV_IARG_NUM];
#define __AV_FARG_NUM 8
/* store the floating-point arguments in an extra array */
unsigned int fanum; /* number of fargs[] words that are occupied so far */
unsigned int farg_mask; /* bitmask of those entries in fargs[] which have a float value */
unsigned int darg_mask; /* bitmask of those entries in dargs[] which have a double value */
float fargs[__AV_FARG_NUM];
double dargs[__AV_FARG_NUM];
#endif
#if defined(__ia64__) || defined(__x86_64_sysv__)
/* store the floating-point arguments in an extra array */
#define __AV_FARG_NUM 8
double* faptr;
double fargs[__AV_FARG_NUM];
#endif
#if defined(__powerpc__) || defined(__powerpc64__)
#if defined(__powerpc_sysv4__)
#define __AV_IARG_NUM 8
/* store the integer arguments in an extra array */
unsigned int ianum;
__avword iargs[__AV_IARG_NUM];
#define __AV_FARG_NUM 8
#else
#define __AV_FARG_NUM 13
#endif
/* store the floating-point arguments in an extra array */
double* faptr;
double fargs[__AV_FARG_NUM];
#endif
#if defined(__x86_64_ms__)
/* store the floating-point arguments in an extra array */
int anum; /* redundant: (LIST).aptr = &(LIST).args[(LIST).anum] */
#define __AV_FARG_NUM 4
unsigned int farg_mask; /* bitmask of those entries in fargs[] which have a float value */
unsigned int darg_mask; /* bitmask of those entries in dargs[] which have a double value */
float fargs[__AV_FARG_NUM];
double dargs[__AV_FARG_NUM];
#endif
#if (defined(__s390__) && !defined(__s390x__))
#define __AV_IARG_NUM 5
/* store the integer arguments in an extra array */
unsigned int ianum;
__avword iargs[__AV_IARG_NUM];
/* store the floating-point arguments in an extra array */
#define __AV_FARG_NUM 2
unsigned int fanum; /* number of fargs[] words that are occupied so far */
unsigned int farg_mask; /* bitmask of those entries in fargs[] which have a float value */
unsigned int darg_mask; /* bitmask of those entries in dargs[] which have a double value */
float fargs[__AV_FARG_NUM];
double dargs[__AV_FARG_NUM];
#endif
#if defined(__s390x__)
#define __AV_IARG_NUM 5
/* store the integer arguments in an extra array */
unsigned int ianum;
__avword iargs[__AV_IARG_NUM];
#define __AV_FARG_NUM 4
/* store the floating-point arguments in an extra array */
unsigned int fanum; /* number of fargs[] words that are occupied so far */
unsigned int farg_mask; /* bitmask of those entries in fargs[] which have a float value */
unsigned int darg_mask; /* bitmask of those entries in dargs[] which have a double value */
float fargs[__AV_FARG_NUM];
double dargs[__AV_FARG_NUM];
#endif
} __av_alist;
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