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
|
/* PLT trampolines. m68k 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
_dl_runtime_resolve:
cfi_startproc
cfi_adjust_cfa_offset (8)
| Save %a0 (struct return address) and %a1.
move.l %a0, -(%sp)
cfi_adjust_cfa_offset (4)
move.l %a1, -(%sp)
cfi_adjust_cfa_offset (4)
| Call the real address resolver.
jbsr _dl_fixup
| Restore register %a0 and %a1.
move.l (%sp)+, %a1
cfi_adjust_cfa_offset (-4)
move.l (%sp)+, %a0
cfi_adjust_cfa_offset (-4)
| Pop parameters
addq.l #8, %sp
cfi_adjust_cfa_offset (-8)
| Call real function.
#ifdef __mcoldfire__
move.l %d0,-(%sp)
cfi_adjust_cfa_offset (4)
rts
#else
jmp (%d0)
#endif
cfi_endproc
.size _dl_runtime_resolve, . - _dl_runtime_resolve
.text
.globl _dl_runtime_profile
.type _dl_runtime_profile, @function
_dl_runtime_profile:
cfi_startproc
cfi_adjust_cfa_offset (8)
pea 8(%sp)
cfi_adjust_cfa_offset (4)
move.l %a1, -(%sp)
cfi_adjust_cfa_offset (4)
move.l %a0, -(%sp)
cfi_adjust_cfa_offset (4)
pea -1.w
cfi_adjust_cfa_offset (4)
| Push parameters for _dl_profile_fixup
pea (%sp)
cfi_adjust_cfa_offset (4)
pea 8(%sp)
cfi_adjust_cfa_offset (4)
move.l 32(%sp), -(%sp)
cfi_adjust_cfa_offset (4)
move.l 32(%sp), -(%sp)
cfi_adjust_cfa_offset (4)
move.l 32(%sp), -(%sp)
cfi_adjust_cfa_offset (4)
subq.l #8, %sp
cfi_adjust_cfa_offset (8)
| Call the real address resolver.
jbsr _dl_profile_fixup
| Pop parameters
lea 28(%sp), %sp
cfi_adjust_cfa_offset (-28)
move.l (%sp), %d1
jpl 1f
addq.l #4, %sp
cfi_adjust_cfa_offset (-4)
| Restore register %a0 and %a1.
move.l (%sp)+, %a0
cfi_adjust_cfa_offset (-4)
move.l (%sp)+, %a1
cfi_adjust_cfa_offset (-4)
lea 12(%sp), %sp
cfi_adjust_cfa_offset (-12)
| Call real function.
#ifdef __mcoldfire__
move.l %d0,-(%sp)
cfi_adjust_cfa_offset (4)
rts
#else
jmp (%d0)
#endif
/*
+24 return address
+20 PLT1
+16 PLT2
+12 %sp
+8 %a1
+4 %a0
%sp free
*/
#ifdef __mcoldfire__
cfi_adjust_cfa_offset (20)
#else
cfi_adjust_cfa_offset (24)
#endif
1: move.l %a2, (%sp)
cfi_rel_offset (%a2, 0)
move.l %sp, %a2
move.l %sp, %a0
lea 28(%sp), %a1
| Round framesize up to longword alignment
addq.l #3, %d1
and.l #-3, %d1
sub.l %d1, %a0
move.l %a0, %sp
cfi_def_cfa_register (%a2)
#ifdef __mcoldfire__
tst.l %d1
beq 2f
1: move.l (%a1)+, (%a0)+
subq.l #4,%d1
bne 1b
2:
#else
lsr.l #2,%d1
jra 2f
1: move.l (%a1)+, (%a0)+
2: dbra %d1,1b
#endif
/*
%a2+24 return address
%a2+20 PLT1
%a2+16 PLT2
%a2+12 %sp
%a2+8 %a1
%a2+4 %a0
%a2 %a2
%sp copied stack frame
*/
move.l 4(%a2), %a0
move.l 8(%a2), %a1
#ifdef __mcoldfire__
pea 2f(%pc)
move.l %d0,-(%sp)
rts
2:
#else
jsr (%d0)
#endif
move.l %a2, %sp
cfi_def_cfa_register (%sp)
move.l (%sp)+, %a2
cfi_adjust_cfa_offset (4)
cfi_restore (%a2)
/*
+20 return address
+16 PLT1
+12 PLT2
+8 %sp
+4 %a1
%sp %a0
*/
#ifdef __mcoldfire__
fmove.d %fp0, -(%sp)
cfi_adjust_cfa_offset (8)
#else
fmove.x %fp0, -(%sp)
cfi_adjust_cfa_offset (12)
#endif
move.l %a0, -(%sp)
cfi_adjust_cfa_offset (4)
move.l %d1, -(%sp)
cfi_adjust_cfa_offset (4)
move.l %d0, -(%sp)
cfi_adjust_cfa_offset (4)
pea (%sp)
cfi_adjust_cfa_offset (4)
#ifdef __mcoldfire__
pea 24(%sp)
cfi_adjust_cfa_offset (4)
move.l 40(%sp), -(%sp)
cfi_adjust_cfa_offset (4)
move.l 40(%sp), -(%sp)
cfi_adjust_cfa_offset (4)
#else
pea 28(%sp)
cfi_adjust_cfa_offset (4)
move.l 44(%sp), -(%sp)
cfi_adjust_cfa_offset (4)
move.l 44(%sp), -(%sp)
cfi_adjust_cfa_offset (4)
#endif
jbsr _dl_call_pltexit
lea 16(%sp), %sp
cfi_adjust_cfa_offset (-16)
move.l (%sp)+, %d0
cfi_adjust_cfa_offset (-4)
move.l (%sp)+, %d1
cfi_adjust_cfa_offset (-4)
move.l (%sp)+, %a0
cfi_adjust_cfa_offset (-4)
#ifdef __mcoldfire__
fmove.d (%sp)+, %fp0
cfi_adjust_cfa_offset (-8)
#else
fmove.x (%sp)+, %fp0
cfi_adjust_cfa_offset (-12)
#endif
lea 20(%sp), %sp
cfi_adjust_cfa_offset (-20)
rts
cfi_endproc
.size _dl_runtime_profile, . - _dl_runtime_profile
|
