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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libffi/] [src/] [s390/] [sysv.S] - Blame information for rev 750

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1 732 jeremybenn
/* -----------------------------------------------------------------------
2
   sysv.S - Copyright (c) 2000 Software AG
3
            Copyright (c) 2008 Red Hat, Inc.
4
 
5
   S390 Foreign Function Interface
6
 
7
   Permission is hereby granted, free of charge, to any person obtaining
8
   a copy of this software and associated documentation files (the
9
   ``Software''), to deal in the Software without restriction, including
10
   without limitation the rights to use, copy, modify, merge, publish,
11
   distribute, sublicense, and/or sell copies of the Software, and to
12
   permit persons to whom the Software is furnished to do so, subject to
13
   the following conditions:
14
 
15
   The above copyright notice and this permission notice shall be included
16
   in all copies or substantial portions of the Software.
17
 
18
   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
19
   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21
   NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
22
   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
23
   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25
   DEALINGS IN THE SOFTWARE.
26
   ----------------------------------------------------------------------- */
27
 
28
#define LIBFFI_ASM
29
#include 
30
#include 
31
 
32
#ifndef __s390x__
33
 
34
.text
35
 
36
        # r2:   cif->bytes
37
        # r3:   &ecif
38
        # r4:   ffi_prep_args
39
        # r5:   ret_type
40
        # r6:   ecif.rvalue
41
        # ov:   fn
42
 
43
        # This assumes we are using gas.
44
        .globl  ffi_call_SYSV
45
        .type   ffi_call_SYSV,%function
46
ffi_call_SYSV:
47
.LFB1:
48
        stm     %r6,%r15,24(%r15)               # Save registers
49
.LCFI0:
50
        basr    %r13,0                          # Set up base register
51
.Lbase:
52
        lr      %r11,%r15                       # Set up frame pointer
53
.LCFI1:
54
        sr      %r15,%r2
55
        ahi     %r15,-96-48                     # Allocate stack
56
        lr      %r8,%r6                         # Save ecif.rvalue
57
        sr      %r9,%r9
58
        ic      %r9,.Ltable-.Lbase(%r13,%r5)    # Load epilog address
59
        l       %r7,96(%r11)                    # Load function address
60
        st      %r11,0(%r15)                    # Set up back chain
61
        ahi     %r11,-48                        # Register save area
62
.LCFI2:
63
 
64
        la      %r2,96(%r15)                    # Save area
65
                                                # r3 already holds &ecif
66
        basr    %r14,%r4                        # Call ffi_prep_args
67
 
68
        lm      %r2,%r6,0(%r11)                 # Load arguments
69
        ld      %f0,32(%r11)
70
        ld      %f2,40(%r11)
71
        la      %r14,0(%r13,%r9)                # Set return address
72
        br      %r7                             # ... and call function
73
 
74
.LretNone:                                      # Return void
75
        l       %r4,48+56(%r11)
76
        lm      %r6,%r15,48+24(%r11)
77
        br      %r4
78
 
79
.LretFloat:
80
        l       %r4,48+56(%r11)
81
        ste     %f0,0(%r8)                      # Return float
82
        lm      %r6,%r15,48+24(%r11)
83
        br      %r4
84
 
85
.LretDouble:
86
        l       %r4,48+56(%r11)
87
        std     %f0,0(%r8)                      # Return double
88
        lm      %r6,%r15,48+24(%r11)
89
        br      %r4
90
 
91
.LretInt32:
92
        l       %r4,48+56(%r11)
93
        st      %r2,0(%r8)                      # Return int
94
        lm      %r6,%r15,48+24(%r11)
95
        br      %r4
96
 
97
.LretInt64:
98
        l       %r4,48+56(%r11)
99
        stm     %r2,%r3,0(%r8)                  # Return long long
100
        lm      %r6,%r15,48+24(%r11)
101
        br      %r4
102
 
103
.Ltable:
104
        .byte   .LretNone-.Lbase                # FFI390_RET_VOID
105
        .byte   .LretNone-.Lbase                # FFI390_RET_STRUCT
106
        .byte   .LretFloat-.Lbase               # FFI390_RET_FLOAT
107
        .byte   .LretDouble-.Lbase              # FFI390_RET_DOUBLE
108
        .byte   .LretInt32-.Lbase               # FFI390_RET_INT32
109
        .byte   .LretInt64-.Lbase               # FFI390_RET_INT64
110
 
111
.LFE1:
112
.ffi_call_SYSV_end:
113
        .size    ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV
114
 
115
 
116
        .globl  ffi_closure_SYSV
117
        .type   ffi_closure_SYSV,%function
118
ffi_closure_SYSV:
119
.LFB2:
120
        stm     %r12,%r15,48(%r15)              # Save registers
121
.LCFI10:
122
        basr    %r13,0                          # Set up base register
123
.Lcbase:
124
        stm     %r2,%r6,8(%r15)                 # Save arguments
125
        std     %f0,64(%r15)
126
        std     %f2,72(%r15)
127
        lr      %r1,%r15                        # Set up stack frame
128
        ahi     %r15,-96
129
.LCFI11:
130
        l       %r12,.Lchelper-.Lcbase(%r13)    # Get helper function
131
        lr      %r2,%r0                         # Closure
132
        la      %r3,8(%r1)                      # GPRs
133
        la      %r4,64(%r1)                     # FPRs
134
        la      %r5,96(%r1)                     # Overflow
135
        st      %r1,0(%r15)                     # Set up back chain
136
 
137
        bas     %r14,0(%r12,%r13)               # Call helper
138
 
139
        l       %r4,96+56(%r15)
140
        ld      %f0,96+64(%r15)                 # Load return registers
141
        lm      %r2,%r3,96+8(%r15)
142
        lm      %r12,%r15,96+48(%r15)
143
        br      %r4
144
 
145
        .align 4
146
.Lchelper:
147
        .long   ffi_closure_helper_SYSV-.Lcbase
148
 
149
.LFE2:
150
 
151
.ffi_closure_SYSV_end:
152
        .size    ffi_closure_SYSV,.ffi_closure_SYSV_end-ffi_closure_SYSV
153
 
154
 
155
        .section        .eh_frame,EH_FRAME_FLAGS,@progbits
156
.Lframe1:
157
        .4byte  .LECIE1-.LSCIE1 # Length of Common Information Entry
158
.LSCIE1:
159
        .4byte  0x0     # CIE Identifier Tag
160
        .byte   0x1     # CIE Version
161
        .ascii "zR\0"   # CIE Augmentation
162
        .uleb128 0x1    # CIE Code Alignment Factor
163
        .sleb128 -4     # CIE Data Alignment Factor
164
        .byte   0xe     # CIE RA Column
165
        .uleb128 0x1    # Augmentation size
166
        .byte   0x1b    # FDE Encoding (pcrel sdata4)
167
        .byte   0xc     # DW_CFA_def_cfa
168
        .uleb128 0xf
169
        .uleb128 0x60
170
        .align  4
171
.LECIE1:
172
.LSFDE1:
173
        .4byte  .LEFDE1-.LASFDE1        # FDE Length
174
.LASFDE1:
175
        .4byte  .LASFDE1-.Lframe1       # FDE CIE offset
176
        .4byte  .LFB1-. # FDE initial location
177
        .4byte  .LFE1-.LFB1     # FDE address range
178
        .uleb128 0x0    # Augmentation size
179
        .byte   0x4     # DW_CFA_advance_loc4
180
        .4byte  .LCFI0-.LFB1
181
        .byte   0x8f    # DW_CFA_offset, column 0xf
182
        .uleb128 0x9
183
        .byte   0x8e    # DW_CFA_offset, column 0xe
184
        .uleb128 0xa
185
        .byte   0x8d    # DW_CFA_offset, column 0xd
186
        .uleb128 0xb
187
        .byte   0x8c    # DW_CFA_offset, column 0xc
188
        .uleb128 0xc
189
        .byte   0x8b    # DW_CFA_offset, column 0xb
190
        .uleb128 0xd
191
        .byte   0x8a    # DW_CFA_offset, column 0xa
192
        .uleb128 0xe
193
        .byte   0x89    # DW_CFA_offset, column 0x9
194
        .uleb128 0xf
195
        .byte   0x88    # DW_CFA_offset, column 0x8
196
        .uleb128 0x10
197
        .byte   0x87    # DW_CFA_offset, column 0x7
198
        .uleb128 0x11
199
        .byte   0x86    # DW_CFA_offset, column 0x6
200
        .uleb128 0x12
201
        .byte   0x4     # DW_CFA_advance_loc4
202
        .4byte  .LCFI1-.LCFI0
203
        .byte   0xd     # DW_CFA_def_cfa_register
204
        .uleb128 0xb
205
        .byte   0x4     # DW_CFA_advance_loc4
206
        .4byte  .LCFI2-.LCFI1
207
        .byte   0xe     # DW_CFA_def_cfa_offset
208
        .uleb128 0x90
209
        .align  4
210
.LEFDE1:
211
.LSFDE2:
212
        .4byte  .LEFDE2-.LASFDE2        # FDE Length
213
.LASFDE2:
214
        .4byte  .LASFDE2-.Lframe1       # FDE CIE offset
215
        .4byte  .LFB2-. # FDE initial location
216
        .4byte  .LFE2-.LFB2     # FDE address range
217
        .uleb128 0x0    # Augmentation size
218
        .byte   0x4     # DW_CFA_advance_loc4
219
        .4byte  .LCFI10-.LFB2
220
        .byte   0x8f    # DW_CFA_offset, column 0xf
221
        .uleb128 0x9
222
        .byte   0x8e    # DW_CFA_offset, column 0xe
223
        .uleb128 0xa
224
        .byte   0x8d    # DW_CFA_offset, column 0xd
225
        .uleb128 0xb
226
        .byte   0x8c    # DW_CFA_offset, column 0xc
227
        .uleb128 0xc
228
        .byte   0x4     # DW_CFA_advance_loc4
229
        .4byte  .LCFI11-.LCFI10
230
        .byte   0xe     # DW_CFA_def_cfa_offset
231
        .uleb128 0xc0
232
        .align  4
233
.LEFDE2:
234
 
235
#else
236
 
237
.text
238
 
239
        # r2:   cif->bytes
240
        # r3:   &ecif
241
        # r4:   ffi_prep_args
242
        # r5:   ret_type
243
        # r6:   ecif.rvalue
244
        # ov:   fn
245
 
246
        # This assumes we are using gas.
247
        .globl  ffi_call_SYSV
248
        .type   ffi_call_SYSV,%function
249
ffi_call_SYSV:
250
.LFB1:
251
        stmg    %r6,%r15,48(%r15)               # Save registers
252
.LCFI0:
253
        larl    %r13,.Lbase                     # Set up base register
254
        lgr     %r11,%r15                       # Set up frame pointer
255
.LCFI1:
256
        sgr     %r15,%r2
257
        aghi    %r15,-160-80                    # Allocate stack
258
        lgr     %r8,%r6                         # Save ecif.rvalue
259
        llgc    %r9,.Ltable-.Lbase(%r13,%r5)    # Load epilog address
260
        lg      %r7,160(%r11)                   # Load function address
261
        stg     %r11,0(%r15)                    # Set up back chain
262
        aghi    %r11,-80                        # Register save area
263
.LCFI2:
264
 
265
        la      %r2,160(%r15)                   # Save area
266
                                                # r3 already holds &ecif
267
        basr    %r14,%r4                        # Call ffi_prep_args
268
 
269
        lmg     %r2,%r6,0(%r11)                 # Load arguments
270
        ld      %f0,48(%r11)
271
        ld      %f2,56(%r11)
272
        ld      %f4,64(%r11)
273
        ld      %f6,72(%r11)
274
        la      %r14,0(%r13,%r9)                # Set return address
275
        br      %r7                             # ... and call function
276
 
277
.Lbase:
278
.LretNone:                                      # Return void
279
        lg      %r4,80+112(%r11)
280
        lmg     %r6,%r15,80+48(%r11)
281
        br      %r4
282
 
283
.LretFloat:
284
        lg      %r4,80+112(%r11)
285
        ste     %f0,0(%r8)                      # Return float
286
        lmg     %r6,%r15,80+48(%r11)
287
        br      %r4
288
 
289
.LretDouble:
290
        lg      %r4,80+112(%r11)
291
        std     %f0,0(%r8)                      # Return double
292
        lmg     %r6,%r15,80+48(%r11)
293
        br      %r4
294
 
295
.LretInt32:
296
        lg      %r4,80+112(%r11)
297
        st      %r2,0(%r8)                      # Return int
298
        lmg     %r6,%r15,80+48(%r11)
299
        br      %r4
300
 
301
.LretInt64:
302
        lg      %r4,80+112(%r11)
303
        stg     %r2,0(%r8)                      # Return long
304
        lmg     %r6,%r15,80+48(%r11)
305
        br      %r4
306
 
307
.Ltable:
308
        .byte   .LretNone-.Lbase                # FFI390_RET_VOID
309
        .byte   .LretNone-.Lbase                # FFI390_RET_STRUCT
310
        .byte   .LretFloat-.Lbase               # FFI390_RET_FLOAT
311
        .byte   .LretDouble-.Lbase              # FFI390_RET_DOUBLE
312
        .byte   .LretInt32-.Lbase               # FFI390_RET_INT32
313
        .byte   .LretInt64-.Lbase               # FFI390_RET_INT64
314
 
315
.LFE1:
316
.ffi_call_SYSV_end:
317
        .size    ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV
318
 
319
 
320
        .globl  ffi_closure_SYSV
321
        .type   ffi_closure_SYSV,%function
322
ffi_closure_SYSV:
323
.LFB2:
324
        stmg    %r14,%r15,112(%r15)             # Save registers
325
.LCFI10:
326
        stmg    %r2,%r6,16(%r15)                # Save arguments
327
        std     %f0,128(%r15)
328
        std     %f2,136(%r15)
329
        std     %f4,144(%r15)
330
        std     %f6,152(%r15)
331
        lgr     %r1,%r15                        # Set up stack frame
332
        aghi    %r15,-160
333
.LCFI11:
334
        lgr     %r2,%r0                         # Closure
335
        la      %r3,16(%r1)                     # GPRs
336
        la      %r4,128(%r1)                    # FPRs
337
        la      %r5,160(%r1)                    # Overflow
338
        stg     %r1,0(%r15)                     # Set up back chain
339
 
340
        brasl   %r14,ffi_closure_helper_SYSV    # Call helper
341
 
342
        lg      %r14,160+112(%r15)
343
        ld      %f0,160+128(%r15)               # Load return registers
344
        lg      %r2,160+16(%r15)
345
        la      %r15,160(%r15)
346
        br      %r14
347
.LFE2:
348
 
349
.ffi_closure_SYSV_end:
350
        .size    ffi_closure_SYSV,.ffi_closure_SYSV_end-ffi_closure_SYSV
351
 
352
 
353
 
354
        .section        .eh_frame,EH_FRAME_FLAGS,@progbits
355
.Lframe1:
356
        .4byte  .LECIE1-.LSCIE1 # Length of Common Information Entry
357
.LSCIE1:
358
        .4byte  0x0     # CIE Identifier Tag
359
        .byte   0x1     # CIE Version
360
        .ascii "zR\0"   # CIE Augmentation
361
        .uleb128 0x1    # CIE Code Alignment Factor
362
        .sleb128 -8     # CIE Data Alignment Factor
363
        .byte   0xe     # CIE RA Column
364
        .uleb128 0x1    # Augmentation size
365
        .byte   0x1b    # FDE Encoding (pcrel sdata4)
366
        .byte   0xc     # DW_CFA_def_cfa
367
        .uleb128 0xf
368
        .uleb128 0xa0
369
        .align  8
370
.LECIE1:
371
.LSFDE1:
372
        .4byte  .LEFDE1-.LASFDE1        # FDE Length
373
.LASFDE1:
374
        .4byte  .LASFDE1-.Lframe1       # FDE CIE offset
375
        .4byte  .LFB1-. # FDE initial location
376
        .4byte  .LFE1-.LFB1     # FDE address range
377
        .uleb128 0x0    # Augmentation size
378
        .byte   0x4     # DW_CFA_advance_loc4
379
        .4byte  .LCFI0-.LFB1
380
        .byte   0x8f    # DW_CFA_offset, column 0xf
381
        .uleb128 0x5
382
        .byte   0x8e    # DW_CFA_offset, column 0xe
383
        .uleb128 0x6
384
        .byte   0x8d    # DW_CFA_offset, column 0xd
385
        .uleb128 0x7
386
        .byte   0x8c    # DW_CFA_offset, column 0xc
387
        .uleb128 0x8
388
        .byte   0x8b    # DW_CFA_offset, column 0xb
389
        .uleb128 0x9
390
        .byte   0x8a    # DW_CFA_offset, column 0xa
391
        .uleb128 0xa
392
        .byte   0x89    # DW_CFA_offset, column 0x9
393
        .uleb128 0xb
394
        .byte   0x88    # DW_CFA_offset, column 0x8
395
        .uleb128 0xc
396
        .byte   0x87    # DW_CFA_offset, column 0x7
397
        .uleb128 0xd
398
        .byte   0x86    # DW_CFA_offset, column 0x6
399
        .uleb128 0xe
400
        .byte   0x4     # DW_CFA_advance_loc4
401
        .4byte  .LCFI1-.LCFI0
402
        .byte   0xd     # DW_CFA_def_cfa_register
403
        .uleb128 0xb
404
        .byte   0x4     # DW_CFA_advance_loc4
405
        .4byte  .LCFI2-.LCFI1
406
        .byte   0xe     # DW_CFA_def_cfa_offset
407
        .uleb128 0xf0
408
        .align  8
409
.LEFDE1:
410
.LSFDE2:
411
        .4byte  .LEFDE2-.LASFDE2        # FDE Length
412
.LASFDE2:
413
        .4byte  .LASFDE2-.Lframe1       # FDE CIE offset
414
        .4byte  .LFB2-. # FDE initial location
415
        .4byte  .LFE2-.LFB2     # FDE address range
416
        .uleb128 0x0    # Augmentation size
417
        .byte   0x4     # DW_CFA_advance_loc4
418
        .4byte  .LCFI10-.LFB2
419
        .byte   0x8f    # DW_CFA_offset, column 0xf
420
        .uleb128 0x5
421
        .byte   0x8e    # DW_CFA_offset, column 0xe
422
        .uleb128 0x6
423
        .byte   0x4     # DW_CFA_advance_loc4
424
        .4byte  .LCFI11-.LCFI10
425
        .byte   0xe     # DW_CFA_def_cfa_offset
426
        .uleb128 0x140
427
        .align  8
428
.LEFDE2:
429
 
430
#endif
431
 
432
#if defined __ELF__ && defined __linux__
433
        .section        .note.GNU-stack,"",@progbits
434
#endif

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