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
|
/* PLT trampolines. SH version.
Copyright (C) 2005-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
.text
.globl _dl_runtime_resolve
.type _dl_runtime_resolve, @function
cfi_startproc
.align 5
_dl_runtime_resolve:
mov.l r2,@-r15
cfi_adjust_cfa_offset (4)
mov.l r3,@-r15
cfi_adjust_cfa_offset (4)
mov.l r4,@-r15
cfi_adjust_cfa_offset (4)
mov.l r5,@-r15
cfi_adjust_cfa_offset (4)
mov.l r6,@-r15
cfi_adjust_cfa_offset (4)
mov.l r7,@-r15
cfi_adjust_cfa_offset (4)
mov.l r12,@-r15
cfi_adjust_cfa_offset (4)
sts.l macl,@-r15
cfi_adjust_cfa_offset (4)
sts.l mach,@-r15
cfi_adjust_cfa_offset (4)
movt r3 ! Save T flag.
mov.l r3,@-r15
cfi_adjust_cfa_offset (4)
#ifdef HAVE_FPU
sts.l fpscr,@-r15
cfi_adjust_cfa_offset (4)
mov #8,r3
swap.w r3,r3
lds r3,fpscr
fmov.s fr11,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr10,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr9,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr8,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr7,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr6,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr5,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr4,@-r15
cfi_adjust_cfa_offset (4)
#endif
sts.l pr,@-r15
cfi_adjust_cfa_offset (4)
tst r0,r0
bt 1f
mov r0,r2
1:
mov r0,r4 ! PLT type
mov r2,r5 ! link map address
#ifdef SHARED
mov.l 2f,r2
mova 2f,r0
add r0,r2 ! Get GOT address in r2
mov.l 3f,r0
add r2,r0
#else
mov.l 3f,r0
#endif
jsr @r0 ! Call resolver.
mov r1,r6 ! reloc offset
lds.l @r15+,pr ! Get register content back.
cfi_adjust_cfa_offset (-4)
#ifdef HAVE_FPU
fmov.s @r15+,fr4
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr5
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr6
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr7
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr8
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr9
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr10
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr11
cfi_adjust_cfa_offset (-4)
lds.l @r15+,fpscr
cfi_adjust_cfa_offset (-4)
#endif
mov.l @r15+,r3
cfi_adjust_cfa_offset (-4)
shal r3 ! Lode T flag.
lds.l @r15+,mach
cfi_adjust_cfa_offset (-4)
lds.l @r15+,macl
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r12
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r7
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r6
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r5
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r4
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r3
cfi_adjust_cfa_offset (-4)
jmp @r0 ! Jump to function address.
mov.l @r15+,r2
cfi_adjust_cfa_offset (-4)
.align 2
#ifdef SHARED
2: .long _GLOBAL_OFFSET_TABLE_
3: .long _dl_fixup@GOTOFF
#else
3: .long _dl_fixup
#endif
cfi_endproc
.size _dl_runtime_resolve, .-_dl_runtime_resolve
.globl _dl_runtime_profile
.type _dl_runtime_profile,@function
cfi_startproc
.align 5
_dl_runtime_profile:
mov.l r12,@-r15
cfi_adjust_cfa_offset (4)
#ifdef HAVE_FPU
sts.l fpscr,@-r15
cfi_adjust_cfa_offset (4)
mov #8,r12
swap.w r12,r12
lds r12,fpscr
fmov.s fr11,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr10,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr9,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr8,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr7,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr6,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr5,@-r15
cfi_adjust_cfa_offset (4)
fmov.s fr4,@-r15
cfi_adjust_cfa_offset (4)
#else
add #-36,r15
cfi_adjust_cfa_offset (36)
#endif
mov.l r7,@-r15
cfi_adjust_cfa_offset (4)
mov.l r6,@-r15
cfi_adjust_cfa_offset (4)
mov.l r5,@-r15
cfi_adjust_cfa_offset (4)
mov.l r4,@-r15
cfi_adjust_cfa_offset (4)
mov.l r3,@-r15
cfi_adjust_cfa_offset (4)
mov.l r2,@-r15
cfi_adjust_cfa_offset (4)
sts.l macl,@-r15
cfi_adjust_cfa_offset (4)
sts.l mach,@-r15
cfi_adjust_cfa_offset (4)
movt r3 ! Save T flag.
mov.l r3,@-r15
cfi_adjust_cfa_offset (4)
sts.l pr,@-r15
cfi_adjust_cfa_offset (4)
tst r0,r0
bt 1f
mov r0,r2
1:
mov r0,r4 ! PLT type
mov r2,r5 ! link map address
sts pr,r7 ! return address
add #-24,r15
cfi_adjust_cfa_offset (24)
mov #40,r0
add r15,r0
mov.l r0,@r15 ! Address of the register structure
mov #-1,r0
mov.l r0,@(8,r15)
mov #8,r0
add r15,r0
mov.l r0,@(4,r15)
mov.l r5,@(12,r15)
mov.l r1,@(16,r15)
#ifdef SHARED
mov.l 2f,r12
mova 2f,r0
add r0,r12 ! Get GOT address in r12
mov.l 3f,r0
add r12,r0
#else
mov.l 3f,r0
#endif
jsr @r0 ! Call resolver.
mov r1,r6 ! reloc offset
mov.l @(8,r15),r1
cmp/pz r1
bt 4f
add #24,r15
cfi_adjust_cfa_offset (-24)
lds.l @r15+,pr ! Get register content back.
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r3
cfi_adjust_cfa_offset (-4)
shal r3 ! Lode T flag.
lds.l @r15+,mach
cfi_adjust_cfa_offset (-4)
lds.l @r15+,macl
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r2
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r3
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r4
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r5
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r6
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r7
cfi_adjust_cfa_offset (-4)
#ifdef HAVE_FPU
fmov.s @r15+,fr4
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr5
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr6
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr7
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr8
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr9
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr10
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr11
cfi_adjust_cfa_offset (-4)
lds.l @r15+,fpscr
cfi_adjust_cfa_offset (-4)
#else
add #36,r15
cfi_adjust_cfa_offset (-36)
#endif
jmp @r0 ! Jump to function address.
mov.l @r15+,r12
cfi_adjust_cfa_offset (-4)
.align 2
#ifdef SHARED
2: .long _GLOBAL_OFFSET_TABLE_
3: .long _dl_profile_fixup@GOTOFF
#else
3: .long _dl_profile_fixup
#endif
cfi_adjust_cfa_offset (104)
4:
mov #104,r3
add r15,r3 ! Original stack
mov.l r8,@(20,r15)
cfi_rel_offset (r8, 20)
mov r15,r8
sub r1,r15
shlr2 r15
shll2 r15
mov r15,r4
shlr2 r1
tst r1,r1
5:
bt/s 6f
dt r1
mov.l @r3+,r2
mov.l r2,@r4
bra 5b
add #4,r4
6:
mov.l @r8,r12
mov.l @r12+,r2
mov.l @r12+,r3
mov.l @r12+,r4
mov.l @r12+,r5
mov.l @r12+,r6
mov.l @r12+,r7
#ifdef HAVE_FPU
fmov.s @r12+,fr4
fmov.s @r12+,fr5
fmov.s @r12+,fr6
fmov.s @r12+,fr7
fmov.s @r12+,fr8
fmov.s @r12+,fr9
fmov.s @r12+,fr10
fmov.s @r12+,fr11
lds.l @r12+,fpscr
#else
add #36,r2
#endif
jsr @r0 ! Call function.
nop
mov r8,r15
mov.l @(12,r15),r4 ! link map address
mov.l @(16,r15),r5 ! reloc offset
mov.l @r15,r6 ! input registers
#ifdef HAVE_FPU
mov #16,r8
add r15,r8
fmov.s fr1,@-r8
fmov.s fr0,@-r8
#else
mov #8,r8
add r15,r8
#endif
mov.l r1,@-r8
mov.l r0,@-r8
mov.l @(20,r15),r8
cfi_restore (r8)
#ifdef SHARED
mov.l 7f,r12
mova 7f,r0
add r0,r12 ! Get GOT address in r12
mov.l 8f,r0
add r12,r0
#else
mov.l 8f,r0
#endif
jsr @r0
mov r15,r7 ! output registers
mov.l @r15+,r0
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r1
cfi_adjust_cfa_offset (-4)
#ifdef HAVE_FPU
fmov.s @r15+,fr0
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr1
cfi_adjust_cfa_offset (-4)
add #8,r15
cfi_adjust_cfa_offset (-8)
#else
add #16,r15
cfi_adjust_cfa_offset (-16)
#endif
lds.l @r15+,pr ! Get register content back.
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r3
cfi_adjust_cfa_offset (-4)
shal r3 ! Lode T flag.
lds.l @r15+,mach
cfi_adjust_cfa_offset (-4)
lds.l @r15+,macl
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r2
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r3
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r4
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r5
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r6
cfi_adjust_cfa_offset (-4)
mov.l @r15+,r7
cfi_adjust_cfa_offset (-4)
#ifdef HAVE_FPU
fmov.s @r15+,fr4
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr5
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr6
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr7
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr8
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr9
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr10
cfi_adjust_cfa_offset (-4)
fmov.s @r15+,fr11
cfi_adjust_cfa_offset (-4)
lds.l @r15+,fpscr
cfi_adjust_cfa_offset (-4)
#else
add #36,r15
cfi_adjust_cfa_offset (-36)
#endif
rts ! Jump to function address.
mov.l @r15+,r12
cfi_adjust_cfa_offset (-4)
cfi_endproc
.align 2
#ifdef SHARED
7: .long _GLOBAL_OFFSET_TABLE_
8: .long _dl_call_pltexit@GOTOFF
#else
8: .long _dl_call_pltexit
#endif
.size _dl_runtime_profile, .-_dl_runtime_profile
|
