1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
|
/* -----------------------------------------------------------------------
unix.S - Copyright (c) 1998, 2008 Red Hat, Inc.
Copyright (c) 2000 Hewlett Packard Company
IA64/unix Foreign Function Interface
Primary author: Hans Boehm, HP Labs
Loosely modeled on Cygnus code for other platforms.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
``Software''), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */
#define LIBFFI_ASM
#include <fficonfig.h>
#include <ffi.h>
#include "ia64_flags.h"
.pred.safe_across_calls p1-p5,p16-p63
.text
/* int ffi_call_unix (struct ia64_args *stack, PTR64 rvalue,
void (*fn)(void), int flags);
*/
.align 16
.global ffi_call_unix
.proc ffi_call_unix
ffi_call_unix:
.prologue
/* Bit o trickiness. We actually share a stack frame with ffi_call.
Rely on the fact that ffi_call uses a vframe and don't bother
tracking one here at all. */
.fframe 0
.save ar.pfs, r36 // loc0
alloc loc0 = ar.pfs, 4, 3, 8, 0
.save rp, loc1
mov loc1 = b0
.body
add r16 = 16, in0
mov loc2 = gp
mov r8 = in1
;;
/* Load up all of the argument registers. */
ldf.fill f8 = [in0], 32
ldf.fill f9 = [r16], 32
;;
ldf.fill f10 = [in0], 32
ldf.fill f11 = [r16], 32
;;
ldf.fill f12 = [in0], 32
ldf.fill f13 = [r16], 32
;;
ldf.fill f14 = [in0], 32
ldf.fill f15 = [r16], 24
;;
ld8 out0 = [in0], 16
ld8 out1 = [r16], 16
;;
ld8 out2 = [in0], 16
ld8 out3 = [r16], 16
;;
ld8 out4 = [in0], 16
ld8 out5 = [r16], 16
;;
ld8 out6 = [in0]
ld8 out7 = [r16]
;;
/* Deallocate the register save area from the stack frame. */
mov sp = in0
/* Call the target function. */
ld8 r16 = [in2], 8
;;
ld8 gp = [in2]
mov b6 = r16
br.call.sptk.many b0 = b6
;;
/* Dispatch to handle return value. */
mov gp = loc2
zxt1 r16 = in3
;;
mov ar.pfs = loc0
addl r18 = @ltoffx(.Lst_table), gp
;;
ld8.mov r18 = [r18], .Lst_table
mov b0 = loc1
;;
shladd r18 = r16, 3, r18
;;
ld8 r17 = [r18]
shr in3 = in3, 8
;;
add r17 = r17, r18
;;
mov b6 = r17
br b6
;;
.Lst_void:
br.ret.sptk.many b0
;;
.Lst_uint8:
zxt1 r8 = r8
;;
st8 [in1] = r8
br.ret.sptk.many b0
;;
.Lst_sint8:
sxt1 r8 = r8
;;
st8 [in1] = r8
br.ret.sptk.many b0
;;
.Lst_uint16:
zxt2 r8 = r8
;;
st8 [in1] = r8
br.ret.sptk.many b0
;;
.Lst_sint16:
sxt2 r8 = r8
;;
st8 [in1] = r8
br.ret.sptk.many b0
;;
.Lst_uint32:
zxt4 r8 = r8
;;
st8 [in1] = r8
br.ret.sptk.many b0
;;
.Lst_sint32:
sxt4 r8 = r8
;;
st8 [in1] = r8
br.ret.sptk.many b0
;;
.Lst_int64:
st8 [in1] = r8
br.ret.sptk.many b0
;;
.Lst_float:
stfs [in1] = f8
br.ret.sptk.many b0
;;
.Lst_double:
stfd [in1] = f8
br.ret.sptk.many b0
;;
.Lst_ldouble:
stfe [in1] = f8
br.ret.sptk.many b0
;;
.Lst_small_struct:
add sp = -16, sp
cmp.lt p6, p0 = 8, in3
cmp.lt p7, p0 = 16, in3
cmp.lt p8, p0 = 24, in3
;;
add r16 = 8, sp
add r17 = 16, sp
add r18 = 24, sp
;;
st8 [sp] = r8
(p6) st8 [r16] = r9
mov out0 = in1
(p7) st8 [r17] = r10
(p8) st8 [r18] = r11
mov out1 = sp
mov out2 = in3
br.call.sptk.many b0 = memcpy#
;;
mov ar.pfs = loc0
mov b0 = loc1
mov gp = loc2
br.ret.sptk.many b0
.Lst_hfa_float:
add r16 = 4, in1
cmp.lt p6, p0 = 4, in3
;;
stfs [in1] = f8, 8
(p6) stfs [r16] = f9, 8
cmp.lt p7, p0 = 8, in3
cmp.lt p8, p0 = 12, in3
;;
(p7) stfs [in1] = f10, 8
(p8) stfs [r16] = f11, 8
cmp.lt p9, p0 = 16, in3
cmp.lt p10, p0 = 20, in3
;;
(p9) stfs [in1] = f12, 8
(p10) stfs [r16] = f13, 8
cmp.lt p6, p0 = 24, in3
cmp.lt p7, p0 = 28, in3
;;
(p6) stfs [in1] = f14
(p7) stfs [r16] = f15
br.ret.sptk.many b0
;;
.Lst_hfa_double:
add r16 = 8, in1
cmp.lt p6, p0 = 8, in3
;;
stfd [in1] = f8, 16
(p6) stfd [r16] = f9, 16
cmp.lt p7, p0 = 16, in3
cmp.lt p8, p0 = 24, in3
;;
(p7) stfd [in1] = f10, 16
(p8) stfd [r16] = f11, 16
cmp.lt p9, p0 = 32, in3
cmp.lt p10, p0 = 40, in3
;;
(p9) stfd [in1] = f12, 16
(p10) stfd [r16] = f13, 16
cmp.lt p6, p0 = 48, in3
cmp.lt p7, p0 = 56, in3
;;
(p6) stfd [in1] = f14
(p7) stfd [r16] = f15
br.ret.sptk.many b0
;;
.Lst_hfa_ldouble:
add r16 = 16, in1
cmp.lt p6, p0 = 16, in3
;;
stfe [in1] = f8, 32
(p6) stfe [r16] = f9, 32
cmp.lt p7, p0 = 32, in3
cmp.lt p8, p0 = 48, in3
;;
(p7) stfe [in1] = f10, 32
(p8) stfe [r16] = f11, 32
cmp.lt p9, p0 = 64, in3
cmp.lt p10, p0 = 80, in3
;;
(p9) stfe [in1] = f12, 32
(p10) stfe [r16] = f13, 32
cmp.lt p6, p0 = 96, in3
cmp.lt p7, p0 = 112, in3
;;
(p6) stfe [in1] = f14
(p7) stfe [r16] = f15
br.ret.sptk.many b0
;;
.endp ffi_call_unix
.align 16
.global ffi_closure_unix
.proc ffi_closure_unix
#define FRAME_SIZE (8*16 + 8*8 + 8*16)
ffi_closure_unix:
.prologue
.save ar.pfs, r40 // loc0
alloc loc0 = ar.pfs, 8, 4, 4, 0
.fframe FRAME_SIZE
add r12 = -FRAME_SIZE, r12
.save rp, loc1
mov loc1 = b0
.save ar.unat, loc2
mov loc2 = ar.unat
.body
/* Retrieve closure pointer and real gp. */
#ifdef _ILP32
addp4 out0 = 0, gp
addp4 gp = 16, gp
#else
mov out0 = gp
add gp = 16, gp
#endif
;;
ld8 gp = [gp]
/* Spill all of the possible argument registers. */
add r16 = 16 + 8*16, sp
add r17 = 16 + 8*16 + 16, sp
;;
stf.spill [r16] = f8, 32
stf.spill [r17] = f9, 32
mov loc3 = gp
;;
stf.spill [r16] = f10, 32
stf.spill [r17] = f11, 32
;;
stf.spill [r16] = f12, 32
stf.spill [r17] = f13, 32
;;
stf.spill [r16] = f14, 32
stf.spill [r17] = f15, 24
;;
.mem.offset 0, 0
st8.spill [r16] = in0, 16
.mem.offset 8, 0
st8.spill [r17] = in1, 16
add out1 = 16 + 8*16, sp
;;
.mem.offset 0, 0
st8.spill [r16] = in2, 16
.mem.offset 8, 0
st8.spill [r17] = in3, 16
add out2 = 16, sp
;;
.mem.offset 0, 0
st8.spill [r16] = in4, 16
.mem.offset 8, 0
st8.spill [r17] = in5, 16
mov out3 = r8
;;
.mem.offset 0, 0
st8.spill [r16] = in6
.mem.offset 8, 0
st8.spill [r17] = in7
/* Invoke ffi_closure_unix_inner for the hard work. */
br.call.sptk.many b0 = ffi_closure_unix_inner
;;
/* Dispatch to handle return value. */
mov gp = loc3
zxt1 r16 = r8
;;
addl r18 = @ltoffx(.Lld_table), gp
mov ar.pfs = loc0
;;
ld8.mov r18 = [r18], .Lld_table
mov b0 = loc1
;;
shladd r18 = r16, 3, r18
mov ar.unat = loc2
;;
ld8 r17 = [r18]
shr r8 = r8, 8
;;
add r17 = r17, r18
add r16 = 16, sp
;;
mov b6 = r17
br b6
;;
.label_state 1
.Lld_void:
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.Lld_int:
.body
.copy_state 1
ld8 r8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.Lld_float:
.body
.copy_state 1
ldfs f8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.Lld_double:
.body
.copy_state 1
ldfd f8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.Lld_ldouble:
.body
.copy_state 1
ldfe f8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.Lld_small_struct:
.body
.copy_state 1
add r17 = 8, r16
cmp.lt p6, p0 = 8, r8
cmp.lt p7, p0 = 16, r8
cmp.lt p8, p0 = 24, r8
;;
ld8 r8 = [r16], 16
(p6) ld8 r9 = [r17], 16
;;
(p7) ld8 r10 = [r16]
(p8) ld8 r11 = [r17]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.Lld_hfa_float:
.body
.copy_state 1
add r17 = 4, r16
cmp.lt p6, p0 = 4, r8
;;
ldfs f8 = [r16], 8
(p6) ldfs f9 = [r17], 8
cmp.lt p7, p0 = 8, r8
cmp.lt p8, p0 = 12, r8
;;
(p7) ldfs f10 = [r16], 8
(p8) ldfs f11 = [r17], 8
cmp.lt p9, p0 = 16, r8
cmp.lt p10, p0 = 20, r8
;;
(p9) ldfs f12 = [r16], 8
(p10) ldfs f13 = [r17], 8
cmp.lt p6, p0 = 24, r8
cmp.lt p7, p0 = 28, r8
;;
(p6) ldfs f14 = [r16]
(p7) ldfs f15 = [r17]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.Lld_hfa_double:
.body
.copy_state 1
add r17 = 8, r16
cmp.lt p6, p0 = 8, r8
;;
ldfd f8 = [r16], 16
(p6) ldfd f9 = [r17], 16
cmp.lt p7, p0 = 16, r8
cmp.lt p8, p0 = 24, r8
;;
(p7) ldfd f10 = [r16], 16
(p8) ldfd f11 = [r17], 16
cmp.lt p9, p0 = 32, r8
cmp.lt p10, p0 = 40, r8
;;
(p9) ldfd f12 = [r16], 16
(p10) ldfd f13 = [r17], 16
cmp.lt p6, p0 = 48, r8
cmp.lt p7, p0 = 56, r8
;;
(p6) ldfd f14 = [r16]
(p7) ldfd f15 = [r17]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.Lld_hfa_ldouble:
.body
.copy_state 1
add r17 = 16, r16
cmp.lt p6, p0 = 16, r8
;;
ldfe f8 = [r16], 32
(p6) ldfe f9 = [r17], 32
cmp.lt p7, p0 = 32, r8
cmp.lt p8, p0 = 48, r8
;;
(p7) ldfe f10 = [r16], 32
(p8) ldfe f11 = [r17], 32
cmp.lt p9, p0 = 64, r8
cmp.lt p10, p0 = 80, r8
;;
(p9) ldfe f12 = [r16], 32
(p10) ldfe f13 = [r17], 32
cmp.lt p6, p0 = 96, r8
cmp.lt p7, p0 = 112, r8
;;
(p6) ldfe f14 = [r16]
(p7) ldfe f15 = [r17]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
;;
.endp ffi_closure_unix
.section .rodata
.align 8
.Lst_table:
data8 @pcrel(.Lst_void) // FFI_TYPE_VOID
data8 @pcrel(.Lst_sint32) // FFI_TYPE_INT
data8 @pcrel(.Lst_float) // FFI_TYPE_FLOAT
data8 @pcrel(.Lst_double) // FFI_TYPE_DOUBLE
data8 @pcrel(.Lst_ldouble) // FFI_TYPE_LONGDOUBLE
data8 @pcrel(.Lst_uint8) // FFI_TYPE_UINT8
data8 @pcrel(.Lst_sint8) // FFI_TYPE_SINT8
data8 @pcrel(.Lst_uint16) // FFI_TYPE_UINT16
data8 @pcrel(.Lst_sint16) // FFI_TYPE_SINT16
data8 @pcrel(.Lst_uint32) // FFI_TYPE_UINT32
data8 @pcrel(.Lst_sint32) // FFI_TYPE_SINT32
data8 @pcrel(.Lst_int64) // FFI_TYPE_UINT64
data8 @pcrel(.Lst_int64) // FFI_TYPE_SINT64
data8 @pcrel(.Lst_void) // FFI_TYPE_STRUCT
data8 @pcrel(.Lst_int64) // FFI_TYPE_POINTER
data8 @pcrel(.Lst_small_struct) // FFI_IA64_TYPE_SMALL_STRUCT
data8 @pcrel(.Lst_hfa_float) // FFI_IA64_TYPE_HFA_FLOAT
data8 @pcrel(.Lst_hfa_double) // FFI_IA64_TYPE_HFA_DOUBLE
data8 @pcrel(.Lst_hfa_ldouble) // FFI_IA64_TYPE_HFA_LDOUBLE
.Lld_table:
data8 @pcrel(.Lld_void) // FFI_TYPE_VOID
data8 @pcrel(.Lld_int) // FFI_TYPE_INT
data8 @pcrel(.Lld_float) // FFI_TYPE_FLOAT
data8 @pcrel(.Lld_double) // FFI_TYPE_DOUBLE
data8 @pcrel(.Lld_ldouble) // FFI_TYPE_LONGDOUBLE
data8 @pcrel(.Lld_int) // FFI_TYPE_UINT8
data8 @pcrel(.Lld_int) // FFI_TYPE_SINT8
data8 @pcrel(.Lld_int) // FFI_TYPE_UINT16
data8 @pcrel(.Lld_int) // FFI_TYPE_SINT16
data8 @pcrel(.Lld_int) // FFI_TYPE_UINT32
data8 @pcrel(.Lld_int) // FFI_TYPE_SINT32
data8 @pcrel(.Lld_int) // FFI_TYPE_UINT64
data8 @pcrel(.Lld_int) // FFI_TYPE_SINT64
data8 @pcrel(.Lld_void) // FFI_TYPE_STRUCT
data8 @pcrel(.Lld_int) // FFI_TYPE_POINTER
data8 @pcrel(.Lld_small_struct) // FFI_IA64_TYPE_SMALL_STRUCT
data8 @pcrel(.Lld_hfa_float) // FFI_IA64_TYPE_HFA_FLOAT
data8 @pcrel(.Lld_hfa_double) // FFI_IA64_TYPE_HFA_DOUBLE
data8 @pcrel(.Lld_hfa_ldouble) // FFI_IA64_TYPE_HFA_LDOUBLE
#if defined __ELF__ && defined __linux__
.section .note.GNU-stack,"",@progbits
#endif
|
