/* -----------------------------------------------------------------------
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ffi_powerpc.h - Copyright (C) 2013 IBM
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Copyright (C) 2011 Anthony Green
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Copyright (C) 2011 Kyle Moffett
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Copyright (C) 2008 Red Hat, Inc
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Copyright (C) 2007, 2008 Free Software Foundation, Inc
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Copyright (c) 1998 Geoffrey Keating
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PowerPC Foreign Function Interface
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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``Software''), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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----------------------------------------------------------------------- */
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enum {
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/* The assembly depends on these exact flags. */
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/* These go in cr7 */
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FLAG_RETURNS_SMST = 1 << (31-31), /* Used for FFI_SYSV small structs. */
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FLAG_RETURNS_NOTHING = 1 << (31-30),
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FLAG_RETURNS_FP = 1 << (31-29),
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FLAG_RETURNS_64BITS = 1 << (31-28),
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/* This goes in cr6 */
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FLAG_RETURNS_128BITS = 1 << (31-27),
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FLAG_COMPAT = 1 << (31- 8), /* Not used by assembly */
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/* These go in cr1 */
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FLAG_ARG_NEEDS_COPY = 1 << (31- 7), /* Used by sysv code */
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FLAG_ARG_NEEDS_PSAVE = FLAG_ARG_NEEDS_COPY, /* Used by linux64 code */
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FLAG_FP_ARGUMENTS = 1 << (31- 6), /* cr1.eq; specified by ABI */
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FLAG_4_GPR_ARGUMENTS = 1 << (31- 5),
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FLAG_RETVAL_REFERENCE = 1 << (31- 4)
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};
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typedef union
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{
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float f;
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double d;
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} ffi_dblfl;
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void FFI_HIDDEN ffi_closure_SYSV (void);
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void FFI_HIDDEN ffi_call_SYSV(extended_cif *, unsigned, unsigned, unsigned *,
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void (*)(void));
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void FFI_HIDDEN ffi_prep_types_sysv (ffi_abi);
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ffi_status FFI_HIDDEN ffi_prep_cif_sysv (ffi_cif *);
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int FFI_HIDDEN ffi_closure_helper_SYSV (ffi_closure *, void *, unsigned long *,
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ffi_dblfl *, unsigned long *);
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void FFI_HIDDEN ffi_call_LINUX64(extended_cif *, unsigned long, unsigned long,
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unsigned long *, void (*)(void));
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void FFI_HIDDEN ffi_closure_LINUX64 (void);
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void FFI_HIDDEN ffi_prep_types_linux64 (ffi_abi);
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ffi_status FFI_HIDDEN ffi_prep_cif_linux64 (ffi_cif *);
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ffi_status FFI_HIDDEN ffi_prep_cif_linux64_var (ffi_cif *, unsigned int,
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unsigned int);
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void FFI_HIDDEN ffi_prep_args64 (extended_cif *, unsigned long *const);
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int FFI_HIDDEN ffi_closure_helper_LINUX64 (ffi_closure *, void *,
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unsigned long *, ffi_dblfl *);
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