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
|
/* Machine-specific calling sequence for `mcount' profiling function. MIPS
Copyright (C) 1996-2019 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 <sgidefs.h>
#define _MCOUNT_DECL(frompc,selfpc) \
static void __attribute_used__ __mcount (u_long frompc, u_long selfpc)
/* Call __mcount with the return PC for our caller,
and the return PC our caller will return to. */
#if _MIPS_SIM == _ABIO32
#ifdef __PIC__
# define CPLOAD ".cpload $25;"
# define CPRESTORE ".cprestore 44\n\t"
#else
# define CPLOAD
# define CPRESTORE
#endif
#define MCOUNT asm(\
".globl _mcount;\n\t" \
".align 2;\n\t" \
".set push;\n\t" \
".set nomips16;\n\t" \
".type _mcount,@function;\n\t" \
".ent _mcount\n\t" \
"_mcount:\n\t" \
".frame $sp,44,$31\n\t" \
".set noreorder;\n\t" \
".set noat;\n\t" \
CPLOAD \
"subu $29,$29,48;\n\t" \
CPRESTORE \
"sw $4,24($29);\n\t" \
"sw $5,28($29);\n\t" \
"sw $6,32($29);\n\t" \
"sw $7,36($29);\n\t" \
"sw $2,40($29);\n\t" \
"sw $1,16($29);\n\t" \
"sw $31,20($29);\n\t" \
"move $5,$31;\n\t" \
"move $4,$1;\n\t" \
"jal __mcount;\n\t" \
"nop;\n\t" \
"lw $4,24($29);\n\t" \
"lw $5,28($29);\n\t" \
"lw $6,32($29);\n\t" \
"lw $7,36($29);\n\t" \
"lw $2,40($29);\n\t" \
"lw $31,20($29);\n\t" \
"lw $1,16($29);\n\t" \
"addu $29,$29,56;\n\t" \
"j $31;\n\t" \
"move $31,$1;\n\t" \
".end _mcount;\n\t" \
".set pop");
#else
#ifdef __PIC__
# define CPSETUP ".cpsetup $25, 88, _mcount;"
# define CPRETURN ".cpreturn;"
#else
# define CPSETUP
# define CPRETURN
#endif
#if _MIPS_SIM == _ABIN32
# if !defined __mips_isa_rev || __mips_isa_rev < 6
# define PTR_ADDU_STRING "add" /* no u */
# define PTR_SUBU_STRING "sub" /* no u */
# else
# define PTR_ADDU_STRING "addu"
# define PTR_SUBU_STRING "subu"
# endif
#elif _MIPS_SIM == _ABI64
# define PTR_ADDU_STRING "daddu"
# define PTR_SUBU_STRING "dsubu"
#else
# error "Unknown ABI"
#endif
#define MCOUNT asm(\
".globl _mcount;\n\t" \
".align 3;\n\t" \
".set push;\n\t" \
".set nomips16;\n\t" \
".type _mcount,@function;\n\t" \
".ent _mcount\n\t" \
"_mcount:\n\t" \
".frame $sp,88,$31\n\t" \
".set noreorder;\n\t" \
".set noat;\n\t" \
PTR_SUBU_STRING " $29,$29,96;\n\t" \
CPSETUP \
"sd $4,24($29);\n\t" \
"sd $5,32($29);\n\t" \
"sd $6,40($29);\n\t" \
"sd $7,48($29);\n\t" \
"sd $8,56($29);\n\t" \
"sd $9,64($29);\n\t" \
"sd $10,72($29);\n\t" \
"sd $11,80($29);\n\t" \
"sd $2,16($29);\n\t" \
"sd $1,0($29);\n\t" \
"sd $31,8($29);\n\t" \
"move $5,$31;\n\t" \
"move $4,$1;\n\t" \
"jal __mcount;\n\t" \
"nop;\n\t" \
"ld $4,24($29);\n\t" \
"ld $5,32($29);\n\t" \
"ld $6,40($29);\n\t" \
"ld $7,48($29);\n\t" \
"ld $8,56($29);\n\t" \
"ld $9,64($29);\n\t" \
"ld $10,72($29);\n\t" \
"ld $11,80($29);\n\t" \
"ld $2,16($29);\n\t" \
"ld $31,8($29);\n\t" \
"ld $1,0($29);\n\t" \
CPRETURN \
PTR_ADDU_STRING " $29,$29,96;\n\t" \
"j $31;\n\t" \
"move $31,$1;\n\t" \
".end _mcount;\n\t" \
".set pop");
#endif
|
