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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libffi/] [src/] [alpha/] [osf.S] - Blame information for rev 756

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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
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   in all copies or substantial portions of the Software.
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17
   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
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   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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   NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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   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
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   DEALINGS IN THE SOFTWARE.
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   ----------------------------------------------------------------------- */
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
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   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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