1*1fd5a2e1SPrashanth Swaminathan /* ----------------------------------------------------------------------- 2*1fd5a2e1SPrashanth Swaminathan ffi_powerpc.h - Copyright (C) 2013 IBM 3*1fd5a2e1SPrashanth Swaminathan Copyright (C) 2011 Anthony Green 4*1fd5a2e1SPrashanth Swaminathan Copyright (C) 2011 Kyle Moffett 5*1fd5a2e1SPrashanth Swaminathan Copyright (C) 2008 Red Hat, Inc 6*1fd5a2e1SPrashanth Swaminathan Copyright (C) 2007, 2008 Free Software Foundation, Inc 7*1fd5a2e1SPrashanth Swaminathan Copyright (c) 1998 Geoffrey Keating 8*1fd5a2e1SPrashanth Swaminathan 9*1fd5a2e1SPrashanth Swaminathan PowerPC Foreign Function Interface 10*1fd5a2e1SPrashanth Swaminathan 11*1fd5a2e1SPrashanth Swaminathan Permission is hereby granted, free of charge, to any person obtaining 12*1fd5a2e1SPrashanth Swaminathan a copy of this software and associated documentation files (the 13*1fd5a2e1SPrashanth Swaminathan ``Software''), to deal in the Software without restriction, including 14*1fd5a2e1SPrashanth Swaminathan without limitation the rights to use, copy, modify, merge, publish, 15*1fd5a2e1SPrashanth Swaminathan distribute, sublicense, and/or sell copies of the Software, and to 16*1fd5a2e1SPrashanth Swaminathan permit persons to whom the Software is furnished to do so, subject to 17*1fd5a2e1SPrashanth Swaminathan the following conditions: 18*1fd5a2e1SPrashanth Swaminathan 19*1fd5a2e1SPrashanth Swaminathan The above copyright notice and this permission notice shall be included 20*1fd5a2e1SPrashanth Swaminathan in all copies or substantial portions of the Software. 21*1fd5a2e1SPrashanth Swaminathan 22*1fd5a2e1SPrashanth Swaminathan THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS 23*1fd5a2e1SPrashanth Swaminathan OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 24*1fd5a2e1SPrashanth Swaminathan MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 25*1fd5a2e1SPrashanth Swaminathan IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR 26*1fd5a2e1SPrashanth Swaminathan OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 27*1fd5a2e1SPrashanth Swaminathan ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 28*1fd5a2e1SPrashanth Swaminathan OTHER DEALINGS IN THE SOFTWARE. 29*1fd5a2e1SPrashanth Swaminathan ----------------------------------------------------------------------- */ 30*1fd5a2e1SPrashanth Swaminathan 31*1fd5a2e1SPrashanth Swaminathan enum { 32*1fd5a2e1SPrashanth Swaminathan /* The assembly depends on these exact flags. */ 33*1fd5a2e1SPrashanth Swaminathan /* These go in cr7 */ 34*1fd5a2e1SPrashanth Swaminathan FLAG_RETURNS_SMST = 1 << (31-31), /* Used for FFI_SYSV small structs. */ 35*1fd5a2e1SPrashanth Swaminathan FLAG_RETURNS_NOTHING = 1 << (31-30), 36*1fd5a2e1SPrashanth Swaminathan FLAG_RETURNS_FP = 1 << (31-29), 37*1fd5a2e1SPrashanth Swaminathan FLAG_RETURNS_VEC = 1 << (31-28), 38*1fd5a2e1SPrashanth Swaminathan 39*1fd5a2e1SPrashanth Swaminathan /* These go in cr6 */ 40*1fd5a2e1SPrashanth Swaminathan FLAG_RETURNS_64BITS = 1 << (31-27), 41*1fd5a2e1SPrashanth Swaminathan FLAG_RETURNS_128BITS = 1 << (31-26), 42*1fd5a2e1SPrashanth Swaminathan 43*1fd5a2e1SPrashanth Swaminathan FLAG_COMPAT = 1 << (31- 8), /* Not used by assembly */ 44*1fd5a2e1SPrashanth Swaminathan 45*1fd5a2e1SPrashanth Swaminathan /* These go in cr1 */ 46*1fd5a2e1SPrashanth Swaminathan FLAG_ARG_NEEDS_COPY = 1 << (31- 7), /* Used by sysv code */ 47*1fd5a2e1SPrashanth Swaminathan FLAG_ARG_NEEDS_PSAVE = FLAG_ARG_NEEDS_COPY, /* Used by linux64 code */ 48*1fd5a2e1SPrashanth Swaminathan FLAG_FP_ARGUMENTS = 1 << (31- 6), /* cr1.eq; specified by ABI */ 49*1fd5a2e1SPrashanth Swaminathan FLAG_4_GPR_ARGUMENTS = 1 << (31- 5), 50*1fd5a2e1SPrashanth Swaminathan FLAG_RETVAL_REFERENCE = 1 << (31- 4), 51*1fd5a2e1SPrashanth Swaminathan FLAG_VEC_ARGUMENTS = 1 << (31- 3), 52*1fd5a2e1SPrashanth Swaminathan }; 53*1fd5a2e1SPrashanth Swaminathan 54*1fd5a2e1SPrashanth Swaminathan typedef union 55*1fd5a2e1SPrashanth Swaminathan { 56*1fd5a2e1SPrashanth Swaminathan float f; 57*1fd5a2e1SPrashanth Swaminathan double d; 58*1fd5a2e1SPrashanth Swaminathan } ffi_dblfl; 59*1fd5a2e1SPrashanth Swaminathan 60*1fd5a2e1SPrashanth Swaminathan #if defined(__FLOAT128_TYPE__) 61*1fd5a2e1SPrashanth Swaminathan typedef _Float128 float128; 62*1fd5a2e1SPrashanth Swaminathan #elif defined(__FLOAT128__) 63*1fd5a2e1SPrashanth Swaminathan typedef __float128 float128; 64*1fd5a2e1SPrashanth Swaminathan #else 65*1fd5a2e1SPrashanth Swaminathan typedef __int128 float128; 66*1fd5a2e1SPrashanth Swaminathan #endif 67*1fd5a2e1SPrashanth Swaminathan 68*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_closure_SYSV (void); 69*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_go_closure_sysv (void); 70*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_call_SYSV(extended_cif *, void (*)(void), void *, 71*1fd5a2e1SPrashanth Swaminathan unsigned, void *, int); 72*1fd5a2e1SPrashanth Swaminathan 73*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_prep_types_sysv (ffi_abi); 74*1fd5a2e1SPrashanth Swaminathan ffi_status FFI_HIDDEN ffi_prep_cif_sysv (ffi_cif *); 75*1fd5a2e1SPrashanth Swaminathan ffi_status FFI_HIDDEN ffi_prep_closure_loc_sysv (ffi_closure *, 76*1fd5a2e1SPrashanth Swaminathan ffi_cif *, 77*1fd5a2e1SPrashanth Swaminathan void (*) (ffi_cif *, void *, 78*1fd5a2e1SPrashanth Swaminathan void **, void *), 79*1fd5a2e1SPrashanth Swaminathan void *, void *); 80*1fd5a2e1SPrashanth Swaminathan int FFI_HIDDEN ffi_closure_helper_SYSV (ffi_cif *, 81*1fd5a2e1SPrashanth Swaminathan void (*) (ffi_cif *, void *, 82*1fd5a2e1SPrashanth Swaminathan void **, void *), 83*1fd5a2e1SPrashanth Swaminathan void *, void *, unsigned long *, 84*1fd5a2e1SPrashanth Swaminathan ffi_dblfl *, unsigned long *); 85*1fd5a2e1SPrashanth Swaminathan 86*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_call_LINUX64(extended_cif *, void (*) (void), void *, 87*1fd5a2e1SPrashanth Swaminathan unsigned long, void *, long); 88*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_closure_LINUX64 (void); 89*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_go_closure_linux64 (void); 90*1fd5a2e1SPrashanth Swaminathan 91*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_prep_types_linux64 (ffi_abi); 92*1fd5a2e1SPrashanth Swaminathan ffi_status FFI_HIDDEN ffi_prep_cif_linux64 (ffi_cif *); 93*1fd5a2e1SPrashanth Swaminathan ffi_status FFI_HIDDEN ffi_prep_cif_linux64_var (ffi_cif *, unsigned int, 94*1fd5a2e1SPrashanth Swaminathan unsigned int); 95*1fd5a2e1SPrashanth Swaminathan void FFI_HIDDEN ffi_prep_args64 (extended_cif *, unsigned long *const); 96*1fd5a2e1SPrashanth Swaminathan ffi_status FFI_HIDDEN ffi_prep_closure_loc_linux64 (ffi_closure *, ffi_cif *, 97*1fd5a2e1SPrashanth Swaminathan void (*) (ffi_cif *, void *, 98*1fd5a2e1SPrashanth Swaminathan void **, void *), 99*1fd5a2e1SPrashanth Swaminathan void *, void *); 100*1fd5a2e1SPrashanth Swaminathan int FFI_HIDDEN ffi_closure_helper_LINUX64 (ffi_cif *, 101*1fd5a2e1SPrashanth Swaminathan void (*) (ffi_cif *, void *, 102*1fd5a2e1SPrashanth Swaminathan void **, void *), 103*1fd5a2e1SPrashanth Swaminathan void *, void *, 104*1fd5a2e1SPrashanth Swaminathan unsigned long *, ffi_dblfl *, 105*1fd5a2e1SPrashanth Swaminathan float128 *); 106