1/* -----------------------------------------------------------------*-C-*- 2 ffitarget.h - Copyright (c) 2012 Anthony Green 3 Copyright (C) 2007, 2008, 2010 Free Software Foundation, Inc 4 Copyright (c) 1996-2003 Red Hat, Inc. 5 6 Target configuration macros for PowerPC. 7 8 Permission is hereby granted, free of charge, to any person obtaining 9 a copy of this software and associated documentation files (the 10 ``Software''), to deal in the Software without restriction, including 11 without limitation the rights to use, copy, modify, merge, publish, 12 distribute, sublicense, and/or sell copies of the Software, and to 13 permit persons to whom the Software is furnished to do so, subject to 14 the following conditions: 15 16 The above copyright notice and this permission notice shall be included 17 in all copies or substantial portions of the Software. 18 19 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, 20 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 22 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 23 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 24 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 25 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 26 DEALINGS IN THE SOFTWARE. 27 28 ----------------------------------------------------------------------- */ 29 30#ifndef LIBFFI_TARGET_H 31#define LIBFFI_TARGET_H 32 33#ifndef LIBFFI_H 34#error "Please do not include ffitarget.h directly into your source. Use ffi.h instead." 35#endif 36 37/* ---- System specific configurations ----------------------------------- */ 38 39#if defined (POWERPC) && defined (__powerpc64__) /* linux64 */ 40#ifndef POWERPC64 41#define POWERPC64 42#endif 43#elif defined (POWERPC_DARWIN) && defined (__ppc64__) /* Darwin64 */ 44#ifndef POWERPC64 45#define POWERPC64 46#endif 47#ifndef POWERPC_DARWIN64 48#define POWERPC_DARWIN64 49#endif 50#elif defined (POWERPC_AIX) && defined (__64BIT__) /* AIX64 */ 51#ifndef POWERPC64 52#define POWERPC64 53#endif 54#endif 55 56#ifndef LIBFFI_ASM 57typedef unsigned long ffi_arg; 58typedef signed long ffi_sarg; 59 60typedef enum ffi_abi { 61 FFI_FIRST_ABI = 0, 62 63#if defined (POWERPC_AIX) 64 FFI_AIX, 65 FFI_DARWIN, 66 FFI_DEFAULT_ABI = FFI_AIX, 67 FFI_LAST_ABI 68 69#elif defined (POWERPC_DARWIN) 70 FFI_AIX, 71 FFI_DARWIN, 72 FFI_DEFAULT_ABI = FFI_DARWIN, 73 FFI_LAST_ABI 74 75#else 76 /* The FFI_COMPAT values are used by old code. Since libffi may be 77 a shared library we have to support old values for backwards 78 compatibility. */ 79 FFI_COMPAT_SYSV, 80 FFI_COMPAT_GCC_SYSV, 81 FFI_COMPAT_LINUX64, 82 FFI_COMPAT_LINUX, 83 FFI_COMPAT_LINUX_SOFT_FLOAT, 84 85# if defined (POWERPC64) 86 /* This bit, always set in new code, must not be set in any of the 87 old FFI_COMPAT values that might be used for 64-bit linux. We 88 only need worry about FFI_COMPAT_LINUX64, but to be safe avoid 89 all old values. */ 90 FFI_LINUX = 8, 91 /* This and following bits can reuse FFI_COMPAT values. */ 92 FFI_LINUX_STRUCT_ALIGN = 1, 93 FFI_LINUX_LONG_DOUBLE_128 = 2, 94 FFI_DEFAULT_ABI = (FFI_LINUX 95# ifdef __STRUCT_PARM_ALIGN__ 96 | FFI_LINUX_STRUCT_ALIGN 97# endif 98# ifdef __LONG_DOUBLE_128__ 99 | FFI_LINUX_LONG_DOUBLE_128 100# endif 101 ), 102 FFI_LAST_ABI = 12 103 104# else 105 /* This bit, always set in new code, must not be set in any of the 106 old FFI_COMPAT values that might be used for 32-bit linux/sysv/bsd. */ 107 FFI_SYSV = 8, 108 /* This and following bits can reuse FFI_COMPAT values. */ 109 FFI_SYSV_SOFT_FLOAT = 1, 110 FFI_SYSV_STRUCT_RET = 2, 111 FFI_SYSV_IBM_LONG_DOUBLE = 4, 112 FFI_SYSV_LONG_DOUBLE_128 = 16, 113 114 FFI_DEFAULT_ABI = (FFI_SYSV 115# ifdef __NO_FPRS__ 116 | FFI_SYSV_SOFT_FLOAT 117# endif 118# if (defined (__SVR4_STRUCT_RETURN) \ 119 || defined (POWERPC_FREEBSD) && !defined (__AIX_STRUCT_RETURN)) 120 | FFI_SYSV_STRUCT_RET 121# endif 122# if __LDBL_MANT_DIG__ == 106 123 | FFI_SYSV_IBM_LONG_DOUBLE 124# endif 125# ifdef __LONG_DOUBLE_128__ 126 | FFI_SYSV_LONG_DOUBLE_128 127# endif 128 ), 129 FFI_LAST_ABI = 32 130# endif 131#endif 132 133} ffi_abi; 134#endif 135 136/* ---- Definitions for closures ----------------------------------------- */ 137 138#define FFI_CLOSURES 1 139#define FFI_NATIVE_RAW_API 0 140#if defined (POWERPC) || defined (POWERPC_FREEBSD) 141# define FFI_TARGET_SPECIFIC_VARIADIC 1 142# define FFI_EXTRA_CIF_FIELDS unsigned nfixedargs 143#endif 144 145/* For additional types like the below, take care about the order in 146 ppc_closures.S. They must follow after the FFI_TYPE_LAST. */ 147 148/* Needed for soft-float long-double-128 support. */ 149#define FFI_TYPE_UINT128 (FFI_TYPE_LAST + 1) 150 151/* Needed for FFI_SYSV small structure returns. */ 152#define FFI_SYSV_TYPE_SMALL_STRUCT (FFI_TYPE_LAST + 2) 153 154/* Used by ELFv2 for homogenous structure returns. */ 155#define FFI_V2_TYPE_FLOAT_HOMOG (FFI_TYPE_LAST + 1) 156#define FFI_V2_TYPE_DOUBLE_HOMOG (FFI_TYPE_LAST + 2) 157#define FFI_V2_TYPE_SMALL_STRUCT (FFI_TYPE_LAST + 3) 158 159#if _CALL_ELF == 2 160# define FFI_TRAMPOLINE_SIZE 32 161#else 162# if defined(POWERPC64) || defined(POWERPC_AIX) 163# if defined(POWERPC_DARWIN64) 164# define FFI_TRAMPOLINE_SIZE 48 165# else 166# define FFI_TRAMPOLINE_SIZE 24 167# endif 168# else /* POWERPC || POWERPC_AIX */ 169# define FFI_TRAMPOLINE_SIZE 40 170# endif 171#endif 172 173#ifndef LIBFFI_ASM 174#if defined(POWERPC_DARWIN) || defined(POWERPC_AIX) 175struct ffi_aix_trampoline_struct { 176 void * code_pointer; /* Pointer to ffi_closure_ASM */ 177 void * toc; /* TOC */ 178 void * static_chain; /* Pointer to closure */ 179}; 180#endif 181#endif 182 183#endif 184