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
|
/* Copyright (C) 1992, 1995, 1996, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Brendan Kehoe (brendan@zen.org).
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdeps/unix/sysdep.h>
#ifdef __ASSEMBLER__
#ifdef __linux__
# include <alpha/regdef.h>
#else
# include <regdef.h>
#endif
#include <tls.h> /* Defines USE___THREAD. */
#ifdef IS_IN_rtld
# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */
#endif
#ifdef __STDC__
#define __LABEL(x) x##:
#else
#define __LABEL(x) x/**/:
#endif
#define LEAF(name, framesize) \
.globl name; \
.align 3; \
.ent name, 0; \
__LABEL(name) \
.frame sp, framesize, ra
#define ENTRY(name) \
.globl name; \
.align 3; \
.ent name, 0; \
__LABEL(name) \
.frame sp, 0, ra
/* Mark the end of function SYM. */
#undef END
#define END(sym) .end sym
/* Note that PSEUDO/PSEUDO_END use label number 1996---do not use a
label of that number between those two macros! */
#ifdef PROF
# define PSEUDO_PROLOGUE \
.frame sp, 0, ra; \
ldgp gp,0(pv); \
.set noat; \
lda AT,_mcount; \
jsr AT,(AT),_mcount; \
.set at; \
.prologue 1
# define PSEUDO_LOADGP
#else
# define PSEUDO_PROLOGUE \
.frame sp, 0, ra; \
.prologue 0
# define PSEUDO_LOADGP \
br gp, 2f; \
2: ldgp gp, 0(gp)
#endif /* PROF */
#if RTLD_PRIVATE_ERRNO
# define SYSCALL_ERROR_HANDLER \
stl v0, errno(gp) !gprel; \
lda v0, -1; \
ret
#else
# define SYSCALL_ERROR_HANDLER \
jmp $31, __syscall_error
#endif /* RTLD_PRIVATE_ERRNO */
#if defined(PIC) && !RTLD_PRIVATE_ERRNO
# define PSEUDO(name, syscall_name, args) \
.globl name; \
.align 4; \
.ent name,0; \
__LABEL(name) \
PSEUDO_PROLOGUE; \
lda v0, SYS_ify(syscall_name); \
call_pal PAL_callsys; \
bne a3, __syscall_error !samegp; \
3:
# undef PSEUDO_END
# define PSEUDO_END(sym) END(sym)
#else
# define PSEUDO(name, syscall_name, args) \
.globl name; \
.align 4; \
.ent name,0; \
__LABEL(name) \
lda v0, SYS_ify(syscall_name); \
call_pal PAL_callsys; \
bne a3, 1996f; \
3:
# undef PSEUDO_END
# define PSEUDO_END(sym) \
1996: \
PSEUDO_LOADGP; \
SYSCALL_ERROR_HANDLER; \
END(sym)
#endif /* PIC && !RTLD_PRIVATE_ERRNO */
#define r0 v0
#define r1 a4
#define MOVE(x,y) mov x,y
#endif /* ASSEMBLER */
|
