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
|
/* Copyright (C) 1992, 1995, 1996 Free Software Foundation, Inc.
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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdeps/unix/sysdep.h>
#ifdef ASSEMBLER
#ifdef __linux__
# include <alpha/regdef.h>
#else
# include <regdef.h>
#endif
#ifdef __STDC__
#define LEAF(name, framesize) \
.globl name; \
.align 3; \
.ent name, 0; \
name##: \
.frame sp, framesize, ra
#else
#define LEAF(name, framesize) \
.globl name; \
.align 3; \
.ent name, 0; \
name/**/: \
.frame sp, framesize, ra
#endif
#ifdef __STDC__
#define ENTRY(name) \
.globl name; \
.align 3; \
.ent name, 0; \
name##: \
.frame sp, 0, ra
#else
#define ENTRY(name) \
.globl name; \
.align 3; \
.ent name, 0; \
name/**/: \
.frame sp, 0, ra
#endif
/* 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 __STDC__
#define PSEUDO(name, syscall_name, args) \
.globl name; \
.align 3; \
.ent name,0; \
\
name##: \
.frame sp, 0, ra \
.prologue 1; /* yes, we do use gp */ \
ldiq v0, SYS_ify(syscall_name); \
.set noat; \
call_pal PAL_callsys; \
.set at; \
bne a3, 1996f; \
3:
#else
#define PSEUDO(name, syscall_name, args) \
.globl name; \
.align 3; \
.ent name,0; \
\
name/**/: \
.frame sp, 0, ra \
.prologue 1; /* yes, we do use gp */ \
ldiq v0, SYS_ify(syscall_name); \
.set noat; \
call_pal PAL_callsys; \
.set at; \
bne a3, 1996f; \
3:
#endif
#undef PSEUDO_END
#ifdef PIC
/* When building a shared library, we can use a branch since the text
section of the library is much smaller than 4MB. If we ever break
this assumption, the linker will tell us. */
# define PSEUDO_END(sym) \
1996: \
br zero, __syscall_error; \
END(sym)
#else
# define PSEUDO_END(sym) \
1996: \
br gp, 2f; \
2: ldgp gp, 0(gp); \
jmp zero, __syscall_error; \
END(sym)
#endif
#define r0 v0
#define r1 a4
#define MOVE(x,y) mov x,y
#endif
|