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
|
/* generally used "internal syscalls"
Copyright (C) 2009 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef KFREEBSD_INTERNAL_SYSCALLS_H
#define KFREEBSD_INTERNAL_SYSCALLS_H
#include <sys/syscall.h>
/*
for now, we do not care whether syscall succeeded,
we do not have defined
INTERNAL_SYSCALL_ERROR_P and INTERNAL_SYSCALL_ERRNO
we do not store errno at all
to be sure, we return void
*/
#undef INTERNAL_SYSCALL_DECL
#undef INTERNAL_SYSCALL_NCS
#undef INTERNAL_SYSCALL
#undef INTERNAL_SYSCALL_ERROR_P
#undef INTERNAL_SYSCALL_ERRNO
#define INTERNAL_SYSCALL_DECL(err) \
do { } while (0)
#define INTERNAL_SYSCALL(name, err, nr, args...) \
INTERNAL_SYSCALL_##name(name, err, nr, ##args)
#define INTERNAL_SYSCALL_clock_gettime(name, err, nr, clkid, ts) \
(void)({ \
register long int _a1 = (long int) (clkid); \
register long int _a2 = (long int) (ts); \
register long int result; \
asm volatile ( \
"syscall" \
: "=a" (result) \
: "0" ((long int) SYS_##name), \
"D" (_a1), \
"S" (_a2) \
: "memory", "cc", "cx", "dx", "r8", "r9", "r10", "r11"); \
result; \
})
#define INTERNAL_SYSCALL_close(name, err, nr, fd) \
(void)({ \
register long int _a1 = (long int) (fd); \
register long int result; \
asm volatile ( \
"syscall" \
: "=a" (result) \
: "0" ((long int) SYS_##name), \
"D" (_a1) \
: "memory", "cc", "cx", "dx", "r8", "r9", "r10", "r11"); \
result; \
})
#define INTERNAL_SYSCALL_kill(name, err, nr, pid, sig) \
(void)({ \
register long int _a1 = (long int) (pid); \
register long int _a2 = (long int) (sig); \
register long int result; \
asm volatile ( \
"syscall" \
: "=a" (result) \
: "0" ((long int) SYS_##name), \
"D" (_a1), \
"S" (_a2) \
: "memory", "cc", "cx", "dx", "r8", "r9", "r10", "r11"); \
result; \
})
#define INTERNAL_SYSCALL_write(name, err, nr, fd, buf, cnt) \
(void)({ \
register long int _a1 = (long int) (fd); \
register long int _a2 = (long int) (buf); \
register long int _a3 = (long int) (cnt); \
register long int result; \
register long int _trash; \
asm volatile ( \
"syscall" \
: "=a" (result), \
"=d" (_trash) \
: "0" ((long int) SYS_##name), \
"D" (_a1), \
"S" (_a2), \
"d" (_a3) \
/* beware rdx is not preserved after syscall */ \
: "memory", "cc", "cx", "r8", "r9", "r10", "r11"); \
result; \
})
#define INTERNAL_SYSCALL_writev(name, err, nr, fd, iov, cnt) \
(void)({ \
register long int _a1 = (long int) (fd); \
register long int _a2 = (long int) (iov); \
register long int _a3 = (long int) (cnt); \
register long int result; \
register long int _trash; \
asm volatile ( \
"syscall" \
: "=a" (result), \
"=d" (_trash) \
: "0" ((long int) SYS_##name), \
"D" (_a1), \
"S" (_a2), \
"d" (_a3) \
/* beware rdx is not preserved after syscall */ \
: "memory", "cc", "cx", "r8", "r9", "r10", "r11"); \
result; \
})
#endif
|
