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 57 typedef unsigned long ffi_arg; 58 typedef signed long ffi_sarg; 59 60 typedef 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_LINUX_LONG_DOUBLE_IEEE128 = 4, 95 FFI_DEFAULT_ABI = (FFI_LINUX 96 # ifdef __STRUCT_PARM_ALIGN__ 97 | FFI_LINUX_STRUCT_ALIGN 98 # endif 99 # ifdef __LONG_DOUBLE_128__ 100 | FFI_LINUX_LONG_DOUBLE_128 101 # ifdef __LONG_DOUBLE_IEEE128__ 102 | FFI_LINUX_LONG_DOUBLE_IEEE128 103 # endif 104 # endif 105 ), 106 FFI_LAST_ABI = 16 107 108 # else 109 /* This bit, always set in new code, must not be set in any of the 110 old FFI_COMPAT values that might be used for 32-bit linux/sysv/bsd. */ 111 FFI_SYSV = 8, 112 /* This and following bits can reuse FFI_COMPAT values. */ 113 FFI_SYSV_SOFT_FLOAT = 1, 114 FFI_SYSV_STRUCT_RET = 2, 115 FFI_SYSV_IBM_LONG_DOUBLE = 4, 116 FFI_SYSV_LONG_DOUBLE_128 = 16, 117 118 FFI_DEFAULT_ABI = (FFI_SYSV 119 # ifdef __NO_FPRS__ 120 | FFI_SYSV_SOFT_FLOAT 121 # endif 122 # if (defined (__SVR4_STRUCT_RETURN) \ 123 || defined (POWERPC_FREEBSD) && !defined (__AIX_STRUCT_RETURN)) 124 | FFI_SYSV_STRUCT_RET 125 # endif 126 # if __LDBL_MANT_DIG__ == 106 127 | FFI_SYSV_IBM_LONG_DOUBLE 128 # endif 129 # ifdef __LONG_DOUBLE_128__ 130 | FFI_SYSV_LONG_DOUBLE_128 131 # endif 132 ), 133 FFI_LAST_ABI = 32 134 # endif 135 #endif 136 137 } ffi_abi; 138 #endif 139 140 /* ---- Definitions for closures ----------------------------------------- */ 141 142 #define FFI_CLOSURES 1 143 #define FFI_NATIVE_RAW_API 0 144 #if defined (POWERPC) || defined (POWERPC_FREEBSD) 145 # define FFI_GO_CLOSURES 1 146 # define FFI_TARGET_SPECIFIC_VARIADIC 1 147 # define FFI_EXTRA_CIF_FIELDS unsigned nfixedargs 148 #endif 149 #if defined (POWERPC_AIX) 150 # define FFI_GO_CLOSURES 1 151 #endif 152 153 /* ppc_closure.S and linux64_closure.S expect this. */ 154 #define FFI_PPC_TYPE_LAST FFI_TYPE_POINTER 155 156 /* We define additional types below. If generic types are added that 157 must be supported by powerpc libffi then it is likely that 158 FFI_PPC_TYPE_LAST needs increasing *and* the jump tables in 159 ppc_closure.S and linux64_closure.S be extended. */ 160 161 #if !(FFI_TYPE_LAST == FFI_PPC_TYPE_LAST \ 162 || (FFI_TYPE_LAST == FFI_TYPE_COMPLEX \ 163 && !defined FFI_TARGET_HAS_COMPLEX_TYPE)) 164 # error "You likely have a broken powerpc libffi" 165 #endif 166 167 /* Needed for soft-float long-double-128 support. */ 168 #define FFI_TYPE_UINT128 (FFI_PPC_TYPE_LAST + 1) 169 170 /* Needed for FFI_SYSV small structure returns. */ 171 #define FFI_SYSV_TYPE_SMALL_STRUCT (FFI_PPC_TYPE_LAST + 2) 172 173 /* Used by ELFv2 for homogenous structure returns. */ 174 #define FFI_V2_TYPE_VECTOR (FFI_PPC_TYPE_LAST + 1) 175 #define FFI_V2_TYPE_VECTOR_HOMOG (FFI_PPC_TYPE_LAST + 2) 176 #define FFI_V2_TYPE_FLOAT_HOMOG (FFI_PPC_TYPE_LAST + 3) 177 #define FFI_V2_TYPE_DOUBLE_HOMOG (FFI_PPC_TYPE_LAST + 4) 178 #define FFI_V2_TYPE_SMALL_STRUCT (FFI_PPC_TYPE_LAST + 5) 179 180 #if _CALL_ELF == 2 181 # define FFI_TRAMPOLINE_SIZE 32 182 #else 183 # if defined(POWERPC64) || defined(POWERPC_AIX) 184 # if defined(POWERPC_DARWIN64) 185 # define FFI_TRAMPOLINE_SIZE 48 186 # else 187 # define FFI_TRAMPOLINE_SIZE 24 188 # endif 189 # else /* POWERPC || POWERPC_AIX */ 190 # define FFI_TRAMPOLINE_SIZE 40 191 # endif 192 #endif 193 194 #ifndef LIBFFI_ASM 195 #if defined(POWERPC_DARWIN) || defined(POWERPC_AIX) 196 struct ffi_aix_trampoline_struct { 197 void * code_pointer; /* Pointer to ffi_closure_ASM */ 198 void * toc; /* TOC */ 199 void * static_chain; /* Pointer to closure */ 200 }; 201 #endif 202 #endif 203 204 #endif 205