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
|
/* PLT trampolines.
Copyright (C) 2022-2023 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
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <sys/asm.h>
#if HAVE_LOONGARCH_VEC_ASM && !defined __loongarch_soft_float
#define USE_LASX
#define _dl_runtime_resolve _dl_runtime_resolve_lasx
#include "dl-trampoline.h"
#undef FRAME_SIZE
#undef USE_LASX
#undef _dl_runtime_resolve
#define USE_LSX
#define _dl_runtime_resolve _dl_runtime_resolve_lsx
#include "dl-trampoline.h"
#undef FRAME_SIZE
#undef USE_LSX
#undef _dl_runtime_resolve
#endif
#include "dl-trampoline.h"
#include "dl-link.h"
ENTRY (_dl_runtime_profile)
/* LoongArch we get called with:
t0 linkr_map pointer
t1 the scaled offset stored in t0, which can be used
to calculate the offset of the current symbol in .rela.plt
t2 %hi(%pcrel(.got.plt)) stored in t2, no use in this function
t3 dl resolver entry point, no use in this function
Stack frame layout:
[sp, #96] La_loongarch_regs
[sp, #48] La_loongarch_retval
[sp, #40] frame size return from pltenter
[sp, #32] dl_profile_call saved a1
[sp, #24] dl_profile_call saved a0
[sp, #16] T1
[sp, #0] ra, fp <- fp
*/
# define OFFSET_T1 16
# define OFFSET_SAVED_CALL_A0 OFFSET_T1 + 8
# define OFFSET_FS OFFSET_SAVED_CALL_A0 + 16
# define OFFSET_RV OFFSET_FS + 8
# define OFFSET_RG OFFSET_RV + DL_SIZEOF_RV
# define SF_SIZE (-(-(OFFSET_RG + DL_SIZEOF_RG) & ALMASK))
/* Save arguments to stack. */
ADDI sp, sp, -SF_SIZE
REG_S ra, sp, 0
REG_S fp, sp, 8
or fp, sp, zero
REG_S a0, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 0*SZREG
REG_S a1, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 1*SZREG
REG_S a2, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 2*SZREG
REG_S a3, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 3*SZREG
REG_S a4, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 4*SZREG
REG_S a5, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 5*SZREG
REG_S a6, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 6*SZREG
REG_S a7, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 7*SZREG
#ifndef __loongarch_soft_float
FREG_S fa0, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 0*SZFREG
FREG_S fa1, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 1*SZFREG
FREG_S fa2, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 2*SZFREG
FREG_S fa3, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 3*SZFREG
FREG_S fa4, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 4*SZFREG
FREG_S fa5, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 5*SZFREG
FREG_S fa6, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 6*SZFREG
FREG_S fa7, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 7*SZFREG
#endif
/* Update .got.plt and obtain runtime address of callee. */
SLLI a1, t1, 1
or a0, t0, zero
ADD a1, a1, t1
or a2, ra, zero /* return addr */
ADDI a3, fp, OFFSET_RG /* La_loongarch_regs pointer */
ADDI a4, fp, OFFSET_FS /* frame size return from pltenter */
REG_S a0, fp, OFFSET_SAVED_CALL_A0
REG_S a1, fp, OFFSET_SAVED_CALL_A0 + SZREG
la t2, _dl_profile_fixup
jirl ra, t2, 0
REG_L t3, fp, OFFSET_FS
bge t3, zero, 1f
/* Save the return. */
or t4, v0, zero
/* Restore arguments from stack. */
REG_L a0, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 0*SZREG
REG_L a1, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 1*SZREG
REG_L a2, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 2*SZREG
REG_L a3, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 3*SZREG
REG_L a4, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 4*SZREG
REG_L a5, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 5*SZREG
REG_L a6, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 6*SZREG
REG_L a7, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 7*SZREG
#ifndef __loongarch_soft_float
FREG_L fa0, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 0*SZFREG
FREG_L fa1, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 1*SZFREG
FREG_L fa2, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 2*SZFREG
FREG_L fa3, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 3*SZFREG
FREG_L fa4, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 4*SZFREG
FREG_L fa5, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 5*SZFREG
FREG_L fa6, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 6*SZFREG
FREG_L fa7, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 7*SZFREG
#endif
REG_L ra, fp, 0
REG_L fp, fp, SZREG
ADDI sp, sp, SF_SIZE
jirl zero, t4, 0
1:
/* The new frame size is in t3. */
SUB sp, fp, t3
BSTRINS sp, zero, 3, 0
REG_S a0, fp, OFFSET_T1
or a0, sp, zero
ADDI a1, fp, SF_SIZE
or a2, t3, zero
la t5, memcpy
jirl ra, t5, 0
REG_L t6, fp, OFFSET_T1
/* Call the function. */
REG_L a0, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 0*SZREG
REG_L a1, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 1*SZREG
REG_L a2, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 2*SZREG
REG_L a3, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 3*SZREG
REG_L a4, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 4*SZREG
REG_L a5, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 5*SZREG
REG_L a6, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 6*SZREG
REG_L a7, fp, OFFSET_RG + DL_OFFSET_RG_A0 + 7*SZREG
#ifndef __loongarch_soft_float
FREG_L fa0, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 0*SZFREG
FREG_L fa1, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 1*SZFREG
FREG_L fa2, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 2*SZFREG
FREG_L fa3, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 3*SZFREG
FREG_L fa4, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 4*SZFREG
FREG_L fa5, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 5*SZFREG
FREG_L fa6, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 6*SZFREG
FREG_L fa7, fp, OFFSET_RG + DL_OFFSET_RG_FA0 + 7*SZFREG
#endif
jirl ra, t6, 0
REG_S a0, fp, OFFSET_SAVED_CALL_A0 + DL_OFFSET_RV_A0
REG_S a1, fp, OFFSET_SAVED_CALL_A0 + DL_OFFSET_RV_A0 + SZREG
#ifndef __loongarch_soft_float
FREG_S fa0, fp, OFFSET_SAVED_CALL_A0 + DL_OFFSET_RV_FA0
FREG_S fa1, fp, OFFSET_SAVED_CALL_A0 + DL_OFFSET_RV_FA0 + SZFREG
#endif
/* Setup call to pltexit. */
REG_L a0, fp, OFFSET_SAVED_CALL_A0
REG_L a1, fp, OFFSET_SAVED_CALL_A0 + SZREG
ADDI a2, fp, OFFSET_RG
ADDI a3, fp, OFFSET_RV
la t7, _dl_audit_pltexit
jirl ra, t7, 0
REG_L a0, fp, OFFSET_RV + DL_OFFSET_RV_A0
REG_L a1, fp, OFFSET_RV + DL_OFFSET_RV_A0 + SZREG
#ifndef __loongarch_soft_float
FREG_L fa0, fp, OFFSET_RV + DL_OFFSET_RV_FA0
FREG_L fa1, fp, OFFSET_RV + DL_OFFSET_RV_FA0 + SZFREG
#endif
/* RA from within La_loongarch_reg. */
REG_L ra, fp, OFFSET_RG + DL_OFFSET_RG_RA
or sp, fp, zero
ADDI sp, sp, SF_SIZE
REG_S fp, fp, SZREG
jirl zero, ra, 0
END (_dl_runtime_profile)
|
