1 /* -----------------------------------------------------------------------
2 osf.S - Copyright (c) 1998, 2001 Red Hat
4 Alpha/OSF Foreign Function Interface
6 $Id: osf.S,v 1.1.1.1 1998/11/29 16:48:16 green Exp $
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:
16 The above copyright notice and this permission notice shall be included
17 in all copies or substantial portions of the Software.
19 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22 IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 OTHER DEALINGS IN THE SOFTWARE.
26 ----------------------------------------------------------------------- */
34 /* ffi_call_osf (void *args, unsigned long bytes, unsigned flags,
35 void *raddr, void (*fnaddr)());
37 Bit o trickiness here -- ARGS+BYTES is the base of the stack frame
38 for this function. This has been allocated by ffi_call. We also
39 deallocate some of the stack that has been alloca'd. */
45 .frame $15, 32, $26, 0
62 # Load up all of the (potential) argument registers.
76 # Deallocate the register argument area.
82 # If the return value pointer is NULL, assume no return value.
88 # Store the return value out in the proper type.
89 cmpeq $18, FFI_TYPE_INT, $1
91 cmpeq $18, FFI_TYPE_FLOAT, $2
93 cmpeq $18, FFI_TYPE_DOUBLE, $3
121 /* ffi_closure_osf(...)
123 Receives the closure argument in $1. */
126 .globl ffi_closure_osf
129 .frame $30, 16*8, $26, 0
130 .mask 0x4000000, -16*8
139 # Store all of the potential argument registers in va_list format.
153 # Call ffi_closure_osf_inner to do the bulk of the work.
157 jsr $26, ffi_closure_osf_inner
161 # Load up the return value in the proper type.
166 jmp $31, ($1), $load_32
256 .gprel32 $load_none # FFI_TYPE_VOID
257 .gprel32 $load_32 # FFI_TYPE_INT
258 .gprel32 $load_float # FFI_TYPE_FLOAT
259 .gprel32 $load_double # FFI_TYPE_DOUBLE
260 .gprel32 $load_double # FFI_TYPE_LONGDOUBLE
261 .gprel32 $load_u8 # FFI_TYPE_UINT8
262 .gprel32 $load_s8 # FFI_TYPE_SINT8
263 .gprel32 $load_u16 # FFI_TYPE_UINT16
264 .gprel32 $load_s16 # FFI_TYPE_SINT16
265 .gprel32 $load_32 # FFI_TYPE_UINT32
266 .gprel32 $load_32 # FFI_TYPE_SINT32
267 .gprel32 $load_64 # FFI_TYPE_UINT64
268 .gprel32 $load_64 # FFI_TYPE_SINT64
269 .gprel32 $load_none # FFI_TYPE_STRUCT
270 .gprel32 $load_64 # FFI_TYPE_POINTER
272 /* Assert that the table above is in sync with ffi.h. */
274 #if FFI_TYPE_FLOAT != 2 \
275 || FFI_TYPE_DOUBLE != 3 \
276 || FFI_TYPE_UINT8 != 5 \
277 || FFI_TYPE_SINT8 != 6 \
278 || FFI_TYPE_UINT16 != 7 \
279 || FFI_TYPE_SINT16 != 8 \
280 || FFI_TYPE_UINT32 != 9 \
281 || FFI_TYPE_SINT32 != 10 \
282 || FFI_TYPE_UINT64 != 11 \
283 || FFI_TYPE_SINT64 != 12 \
284 || FFI_TYPE_STRUCT != 13 \
285 || FFI_TYPE_POINTER != 14 \
286 || FFI_TYPE_LAST != 14
287 #error "osf.S out of sync with ffi.h"
291 .section .eh_frame,"aw",@progbits
293 .4byte $LECIE1-$LSCIE1 # Length of Common Information Entry
295 .4byte 0x0 # CIE Identifier Tag
296 .byte 0x1 # CIE Version
297 .ascii "zR\0" # CIE Augmentation
298 .byte 0x1 # uleb128 0x1; CIE Code Alignment Factor
299 .byte 0x78 # sleb128 -8; CIE Data Alignment Factor
300 .byte 0x1a # CIE RA Column
301 .byte 0x1 # uleb128 0x1; Augmentation size
302 .byte 0x1b # FDE Encoding (pcrel sdata4)
303 .byte 0xc # DW_CFA_def_cfa
304 .byte 0x1e # uleb128 0x1e
305 .byte 0x0 # uleb128 0x0
309 .4byte $LEFDE1-$LASFDE1 # FDE Length
311 .4byte $LASFDE1-__FRAME_BEGIN__ # FDE CIE offset
312 .4byte $LFB1-. # FDE initial location
313 .4byte $LFE1-$LFB1 # FDE address range
314 .byte 0x0 # uleb128 0x0; Augmentation size
315 .byte 0x4 # DW_CFA_advance_loc4
317 .byte 0xe # DW_CFA_def_cfa_offset
318 .byte 0x30 # uleb128 0x30
319 .byte 0x4 # DW_CFA_advance_loc4
321 .byte 0x9a # DW_CFA_offset, column 0x1a
322 .byte 0x6 # uleb128 0x6
323 .byte 0x8f # DW_CFA_offset, column 0xf
324 .byte 0x5 # uleb128 0x5
325 .byte 0x4 # DW_CFA_advance_loc4
327 .byte 0xc # DW_CFA_def_cfa
328 .byte 0xf # uleb128 0xf
329 .byte 0x30 # uleb128 0x30
334 .4byte $LEFDE3-$LASFDE3 # FDE Length
336 .4byte $LASFDE3-__FRAME_BEGIN__ # FDE CIE offset
337 .4byte $LFB2-. # FDE initial location
338 .4byte $LFE2-$LFB2 # FDE address range
339 .byte 0x0 # uleb128 0x0; Augmentation size
340 .byte 0x4 # DW_CFA_advance_loc4
342 .byte 0xe # DW_CFA_def_cfa_offset
343 .byte 0x90,0x1 # uleb128 0x90
344 .byte 0x4 # DW_CFA_advance_loc4
346 .byte 0x9a # DW_CFA_offset, column 0x1a
347 .byte 0x12 # uleb128 0x12