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      1 /* -----------------------------------------------------------------*-C-*-
      2    ffitarget.h - Copyright (c) 1996-2003  Red Hat, Inc.
      3    Copyright (C) 2007 Free Software Foundation, Inc
      4    Target configuration macros for PowerPC.
      5 
      6    Permission is hereby granted, free of charge, to any person obtaining
      7    a copy of this software and associated documentation files (the
      8    ``Software''), to deal in the Software without restriction, including
      9    without limitation the rights to use, copy, modify, merge, publish,
     10    distribute, sublicense, and/or sell copies of the Software, and to
     11    permit persons to whom the Software is furnished to do so, subject to
     12    the following conditions:
     13 
     14    The above copyright notice and this permission notice shall be included
     15    in all copies or substantial portions of the Software.
     16 
     17    THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
     18    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     19    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     20    NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
     21    HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
     22    WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     23    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     24    DEALINGS IN THE SOFTWARE.
     25 
     26    ----------------------------------------------------------------------- */
     27 
     28 #ifndef LIBFFI_TARGET_H
     29 #define LIBFFI_TARGET_H
     30 
     31 /* ---- System specific configurations ----------------------------------- */
     32 
     33 #if defined (POWERPC) && defined (__powerpc64__)
     34 #define POWERPC64
     35 #endif
     36 
     37 #ifndef LIBFFI_ASM
     38 typedef unsigned long          ffi_arg;
     39 typedef signed long            ffi_sarg;
     40 
     41 typedef enum ffi_abi {
     42   FFI_FIRST_ABI = 0,
     43 
     44 #ifdef POWERPC
     45   FFI_SYSV,
     46   FFI_GCC_SYSV,
     47   FFI_LINUX64,
     48   FFI_LINUX,
     49   FFI_LINUX_SOFT_FLOAT,
     50 # ifdef POWERPC64
     51   FFI_DEFAULT_ABI = FFI_LINUX64,
     52 # else
     53 #  if (!defined(__NO_FPRS__) && (__LDBL_MANT_DIG__ == 106))
     54   FFI_DEFAULT_ABI = FFI_LINUX,
     55 #  else
     56 #   ifdef __NO_FPRS__
     57   FFI_DEFAULT_ABI = FFI_LINUX_SOFT_FLOAT,
     58 #   else
     59   FFI_DEFAULT_ABI = FFI_GCC_SYSV,
     60 #   endif
     61 #  endif
     62 # endif
     63 #endif
     64 
     65 #ifdef POWERPC_AIX
     66   FFI_AIX,
     67   FFI_DARWIN,
     68   FFI_DEFAULT_ABI = FFI_AIX,
     69 #endif
     70 
     71 #ifdef POWERPC_DARWIN
     72   FFI_AIX,
     73   FFI_DARWIN,
     74   FFI_DEFAULT_ABI = FFI_DARWIN,
     75 #endif
     76 
     77 #ifdef POWERPC_FREEBSD
     78   FFI_SYSV,
     79   FFI_GCC_SYSV,
     80   FFI_LINUX64,
     81   FFI_DEFAULT_ABI = FFI_SYSV,
     82 #endif
     83 
     84   FFI_LAST_ABI
     85 } ffi_abi;
     86 #endif
     87 
     88 /* ---- Definitions for closures ----------------------------------------- */
     89 
     90 #define FFI_CLOSURES 1
     91 #define FFI_NATIVE_RAW_API 0
     92 
     93 /* For additional types like the below, take care about the order in
     94    ppc_closures.S. They must follow after the FFI_TYPE_LAST.  */
     95 
     96 /* Needed for soft-float long-double-128 support.  */
     97 #define FFI_TYPE_UINT128 (FFI_TYPE_LAST + 1)
     98 
     99 /* Needed for FFI_SYSV small structure returns.  */
    100 #define FFI_SYSV_TYPE_SMALL_STRUCT (FFI_TYPE_LAST + 2)
    101 
    102 #if defined(POWERPC64) || defined(POWERPC_AIX)
    103 #define FFI_TRAMPOLINE_SIZE 24
    104 #else /* POWERPC || POWERPC_AIX */
    105 #define FFI_TRAMPOLINE_SIZE 40
    106 #endif
    107 
    108 #ifndef LIBFFI_ASM
    109 #if defined(POWERPC_DARWIN) || defined(POWERPC_AIX)
    110 struct ffi_aix_trampoline_struct {
    111     void * code_pointer;	/* Pointer to ffi_closure_ASM */
    112     void * toc;			/* TOC */
    113     void * static_chain;	/* Pointer to closure */
    114 };
    115 #endif
    116 #endif
    117 
    118 #endif
    119