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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libffi/] [src/] [alpha/] [osf.S] - Blame information for rev 732

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1 732 jeremybenn
/* -----------------------------------------------------------------------
2
   osf.S - Copyright (c) 1998, 2001, 2007, 2008, 2011 Red Hat
3
 
4
   Alpha/OSF Foreign Function Interface
5
 
6
   Permission is hereby granted, free of charge, to any person obtaining
7
   a copy of this software and associated documentation files (the
8
   ``Software''), to deal in the Software without restriction, including
9
   without limitation the rights to use, copy, modify, merge, publish,
10
   distribute, sublicense, and/or sell copies of the Software, and to
11
   permit persons to whom the Software is furnished to do so, subject to
12
   the following conditions:
13
 
14
   The above copyright notice and this permission notice shall be included
15
   in all copies or substantial portions of the Software.
16
 
17
   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
18
   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20
   NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21
   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22
   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24
   DEALINGS IN THE SOFTWARE.
25
   ----------------------------------------------------------------------- */
26
 
27
#define LIBFFI_ASM
28
#include 
29
#include 
30
 
31
        .arch ev6
32
        .text
33
 
34
/* ffi_call_osf (void *args, unsigned long bytes, unsigned flags,
35
                 void *raddr, void (*fnaddr)(void));
36
 
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.  */
40
 
41
        .align  3
42
        .globl  ffi_call_osf
43
        .ent    ffi_call_osf
44
        FFI_HIDDEN(ffi_call_osf)
45
 
46
ffi_call_osf:
47
        .frame  $15, 32, $26, 0
48
        .mask   0x4008000, -32
49
$LFB1:
50
        addq    $16,$17,$1
51
        mov     $16, $30
52
        stq     $26, 0($1)
53
        stq     $15, 8($1)
54
        stq     $18, 16($1)
55
        mov     $1, $15
56
$LCFI1:
57
        .prologue 0
58
 
59
        stq     $19, 24($1)
60
        mov     $20, $27
61
 
62
        # Load up all of the (potential) argument registers.
63
        ldq     $16, 0($30)
64
        ldt     $f16, 0($30)
65
        ldt     $f17, 8($30)
66
        ldq     $17, 8($30)
67
        ldt     $f18, 16($30)
68
        ldq     $18, 16($30)
69
        ldt     $f19, 24($30)
70
        ldq     $19, 24($30)
71
        ldt     $f20, 32($30)
72
        ldq     $20, 32($30)
73
        ldt     $f21, 40($30)
74
        ldq     $21, 40($30)
75
 
76
        # Deallocate the register argument area.
77
        lda     $30, 48($30)
78
 
79
        jsr     $26, ($27), 0
80
        ldgp    $29, 0($26)
81
 
82
        # If the return value pointer is NULL, assume no return value.
83
        ldq     $19, 24($15)
84
        ldq     $18, 16($15)
85
        ldq     $26, 0($15)
86
$LCFI2:
87
        beq     $19, $noretval
88
 
89
        # Store the return value out in the proper type.
90
        cmpeq   $18, FFI_TYPE_INT, $1
91
        bne     $1, $retint
92
        cmpeq   $18, FFI_TYPE_FLOAT, $2
93
        bne     $2, $retfloat
94
        cmpeq   $18, FFI_TYPE_DOUBLE, $3
95
        bne     $3, $retdouble
96
 
97
        .align  3
98
$noretval:
99
        ldq     $15, 8($15)
100
        ret
101
 
102
        .align  4
103
$retint:
104
        stq     $0, 0($19)
105
        nop
106
        ldq     $15, 8($15)
107
        ret
108
 
109
        .align  4
110
$retfloat:
111
        sts     $f0, 0($19)
112
        nop
113
        ldq     $15, 8($15)
114
        ret
115
 
116
        .align  4
117
$retdouble:
118
        stt     $f0, 0($19)
119
        nop
120
        ldq     $15, 8($15)
121
        ret
122
$LFE1:
123
 
124
        .end    ffi_call_osf
125
 
126
/* ffi_closure_osf(...)
127
 
128
   Receives the closure argument in $1.   */
129
 
130
        .align  3
131
        .globl  ffi_closure_osf
132
        .ent    ffi_closure_osf
133
        FFI_HIDDEN(ffi_closure_osf)
134
 
135
ffi_closure_osf:
136
        .frame  $30, 16*8, $26, 0
137
        .mask   0x4000000, -16*8
138
$LFB2:
139
        ldgp    $29, 0($27)
140
        subq    $30, 16*8, $30
141
$LCFI5:
142
        stq     $26, 0($30)
143
$LCFI6:
144
        .prologue 1
145
 
146
        # Store all of the potential argument registers in va_list format.
147
        stt     $f16, 4*8($30)
148
        stt     $f17, 5*8($30)
149
        stt     $f18, 6*8($30)
150
        stt     $f19, 7*8($30)
151
        stt     $f20, 8*8($30)
152
        stt     $f21, 9*8($30)
153
        stq     $16, 10*8($30)
154
        stq     $17, 11*8($30)
155
        stq     $18, 12*8($30)
156
        stq     $19, 13*8($30)
157
        stq     $20, 14*8($30)
158
        stq     $21, 15*8($30)
159
 
160
        # Call ffi_closure_osf_inner to do the bulk of the work.
161
        mov     $1, $16
162
        lda     $17, 2*8($30)
163
        lda     $18, 10*8($30)
164
        jsr     $26, ffi_closure_osf_inner
165
        ldgp    $29, 0($26)
166
        ldq     $26, 0($30)
167
 
168
        # Load up the return value in the proper type.
169
        lda     $1, $load_table
170
        s4addq  $0, $1, $1
171
        ldl     $1, 0($1)
172
        addq    $1, $29, $1
173
        jmp     $31, ($1), $load_32
174
 
175
        .align 4
176
$load_none:
177
        addq    $30, 16*8, $30
178
        ret
179
 
180
        .align 4
181
$load_float:
182
        lds     $f0, 16($30)
183
        nop
184
        addq    $30, 16*8, $30
185
        ret
186
 
187
        .align 4
188
$load_double:
189
        ldt     $f0, 16($30)
190
        nop
191
        addq    $30, 16*8, $30
192
        ret
193
 
194
        .align 4
195
$load_u8:
196
#ifdef __alpha_bwx__
197
        ldbu    $0, 16($30)
198
        nop
199
#else
200
        ldq     $0, 16($30)
201
        and     $0, 255, $0
202
#endif
203
        addq    $30, 16*8, $30
204
        ret
205
 
206
        .align 4
207
$load_s8:
208
#ifdef __alpha_bwx__
209
        ldbu    $0, 16($30)
210
        sextb   $0, $0
211
#else
212
        ldq     $0, 16($30)
213
        sll     $0, 56, $0
214
        sra     $0, 56, $0
215
#endif
216
        addq    $30, 16*8, $30
217
        ret
218
 
219
        .align 4
220
$load_u16:
221
#ifdef __alpha_bwx__
222
        ldwu    $0, 16($30)
223
        nop
224
#else
225
        ldq     $0, 16($30)
226
        zapnot  $0, 3, $0
227
#endif
228
        addq    $30, 16*8, $30
229
        ret
230
 
231
        .align 4
232
$load_s16:
233
#ifdef __alpha_bwx__
234
        ldwu    $0, 16($30)
235
        sextw   $0, $0
236
#else
237
        ldq     $0, 16($30)
238
        sll     $0, 48, $0
239
        sra     $0, 48, $0
240
#endif
241
        addq    $30, 16*8, $30
242
        ret
243
 
244
        .align 4
245
$load_32:
246
        ldl     $0, 16($30)
247
        nop
248
        addq    $30, 16*8, $30
249
        ret
250
 
251
        .align 4
252
$load_64:
253
        ldq     $0, 16($30)
254
        nop
255
        addq    $30, 16*8, $30
256
        ret
257
$LFE2:
258
 
259
        .end    ffi_closure_osf
260
 
261
#ifdef __ELF__
262
.section .rodata
263
#else
264
.rdata
265
#endif
266
$load_table:
267
        .gprel32 $load_none     # FFI_TYPE_VOID
268
        .gprel32 $load_32       # FFI_TYPE_INT
269
        .gprel32 $load_float    # FFI_TYPE_FLOAT
270
        .gprel32 $load_double   # FFI_TYPE_DOUBLE
271
        .gprel32 $load_none     # FFI_TYPE_LONGDOUBLE
272
        .gprel32 $load_u8       # FFI_TYPE_UINT8
273
        .gprel32 $load_s8       # FFI_TYPE_SINT8
274
        .gprel32 $load_u16      # FFI_TYPE_UINT16
275
        .gprel32 $load_s16      # FFI_TYPE_SINT16
276
        .gprel32 $load_32       # FFI_TYPE_UINT32
277
        .gprel32 $load_32       # FFI_TYPE_SINT32
278
        .gprel32 $load_64       # FFI_TYPE_UINT64
279
        .gprel32 $load_64       # FFI_TYPE_SINT64
280
        .gprel32 $load_none     # FFI_TYPE_STRUCT
281
        .gprel32 $load_64       # FFI_TYPE_POINTER
282
 
283
/* Assert that the table above is in sync with ffi.h.  */
284
 
285
#if        FFI_TYPE_FLOAT != 2          \
286
        || FFI_TYPE_DOUBLE != 3         \
287
        || FFI_TYPE_UINT8 != 5          \
288
        || FFI_TYPE_SINT8 != 6          \
289
        || FFI_TYPE_UINT16 != 7         \
290
        || FFI_TYPE_SINT16 != 8         \
291
        || FFI_TYPE_UINT32 != 9         \
292
        || FFI_TYPE_SINT32 != 10        \
293
        || FFI_TYPE_UINT64 != 11        \
294
        || FFI_TYPE_SINT64 != 12        \
295
        || FFI_TYPE_STRUCT != 13        \
296
        || FFI_TYPE_POINTER != 14       \
297
        || FFI_TYPE_LAST != 14
298
#error "osf.S out of sync with ffi.h"
299
#endif
300
 
301
#ifdef __ELF__
302
# define UA_SI          .4byte
303
# define FDE_ENCODING   0x1b    /* pcrel sdata4 */
304
# define FDE_ENCODE(X)  .4byte X-.
305
# define FDE_ARANGE(X)  .4byte X
306
#elif defined __osf__
307
# define UA_SI          .align 0; .long
308
# define FDE_ENCODING   0x50    /* aligned absolute */
309
# define FDE_ENCODE(X)  .align 3; .quad X
310
# define FDE_ARANGE(X)  .align 0; .quad X
311
#endif
312
 
313
#ifdef __ELF__
314
        .section        .eh_frame,EH_FRAME_FLAGS,@progbits
315
#elif defined __osf__
316
        .data
317
        .align 3
318
        .globl _GLOBAL__F_ffi_call_osf
319
_GLOBAL__F_ffi_call_osf:
320
#endif
321
__FRAME_BEGIN__:
322
        UA_SI   $LECIE1-$LSCIE1 # Length of Common Information Entry
323
$LSCIE1:
324
        UA_SI   0x0             # CIE Identifier Tag
325
        .byte   0x1             # CIE Version
326
        .ascii "zR\0"           # CIE Augmentation
327
        .byte   0x1             # uleb128 0x1; CIE Code Alignment Factor
328
        .byte   0x78            # sleb128 -8; CIE Data Alignment Factor
329
        .byte   26              # CIE RA Column
330
        .byte   0x1             # uleb128 0x1; Augmentation size
331
        .byte   FDE_ENCODING    # FDE Encoding
332
        .byte   0xc             # DW_CFA_def_cfa
333
        .byte   30              # uleb128 column 30
334
        .byte   0                # uleb128 offset 0
335
        .align 3
336
$LECIE1:
337
$LSFDE1:
338
        UA_SI   $LEFDE1-$LASFDE1                # FDE Length
339
$LASFDE1:
340
        UA_SI   $LASFDE1-__FRAME_BEGIN__        # FDE CIE offset
341
        FDE_ENCODE($LFB1)                       # FDE initial location
342
        FDE_ARANGE($LFE1-$LFB1)                 # FDE address range
343
        .byte   0x0             # uleb128 0x0; Augmentation size
344
 
345
        .byte   0x4             # DW_CFA_advance_loc4
346
        UA_SI   $LCFI1-$LFB1
347
        .byte   0x9a            # DW_CFA_offset, column 26
348
        .byte   4               # uleb128 4*-8
349
        .byte   0x8f            # DW_CFA_offset, column 15
350
        .byte   0x3             # uleb128 3*-8
351
        .byte   0xc             # DW_CFA_def_cfa
352
        .byte   15              # uleb128 column 15
353
        .byte   32              # uleb128 offset 32
354
 
355
        .byte   0x4             # DW_CFA_advance_loc4
356
        UA_SI   $LCFI2-$LCFI1
357
        .byte   0xda            # DW_CFA_restore, column 26
358
        .align 3
359
$LEFDE1:
360
 
361
$LSFDE3:
362
        UA_SI   $LEFDE3-$LASFDE3                # FDE Length
363
$LASFDE3:
364
        UA_SI   $LASFDE3-__FRAME_BEGIN__        # FDE CIE offset
365
        FDE_ENCODE($LFB2)                       # FDE initial location
366
        FDE_ARANGE($LFE2-$LFB2)                 # FDE address range
367
        .byte   0x0             # uleb128 0x0; Augmentation size
368
 
369
        .byte   0x4             # DW_CFA_advance_loc4
370
        UA_SI   $LCFI5-$LFB2
371
        .byte   0xe             # DW_CFA_def_cfa_offset
372
        .byte   0x80,0x1        # uleb128 128
373
 
374
        .byte   0x4             # DW_CFA_advance_loc4
375
        UA_SI   $LCFI6-$LCFI5
376
        .byte   0x9a            # DW_CFA_offset, column 26
377
        .byte   16              # uleb128 offset 16*-8
378
        .align 3
379
$LEFDE3:
380
#if defined __osf__
381
        .align 0
382
        .long   0                # End of Table
383
#endif
384
 
385
#if defined __ELF__ && defined __linux__
386
        .section        .note.GNU-stack,"",@progbits
387
#endif

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