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
|
#ifndef _BITS_SYSCALLS_H
#define _BITS_SYSCALLS_H
#ifndef _SYSCALL_H
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
#ifndef __ASSEMBLER__
#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
LOAD_ARGS_##nr (args); \
register int __ret __asm__("r1"); \
register int _scno __asm__("r8") = name; \
__asm__ __volatile__("scall" \
: "=r" (__ret) \
: "r"(_scno) ASM_ARGS_##nr \
: __SYSCALL_CLOBBERS ); \
__ret; \
})
/* original port had ret >= -125 ?! */
#define LOAD_ARGS_0() do { } while(0)
#define ASM_ARGS_0
#define LOAD_ARGS_1(a1) \
int _a1 = (int)(a1); \
LOAD_ARGS_0(); \
register int __a1 __asm__("r1") = _a1
#define ASM_ARGS_1 ASM_ARGS_0, "0"(__a1)
#define LOAD_ARGS_2(a1, a2) \
int _a2 = (int)(a2); \
LOAD_ARGS_1(a1); \
register int __a2 __asm__("r2") = _a2
#define ASM_ARGS_2 ASM_ARGS_1, "r"(__a2)
#define LOAD_ARGS_3(a1, a2, a3) \
int _a3 = (int)(a3); \
LOAD_ARGS_2(a1, a2); \
register int __a3 __asm__("r3") = _a3
#define ASM_ARGS_3 ASM_ARGS_2, "r"(__a3)
#define LOAD_ARGS_4(a1, a2, a3, a4) \
int _a4 = (int)(a4); \
LOAD_ARGS_3(a1, a2, a3); \
register int __a4 __asm__("r4") = _a4
#define ASM_ARGS_4 ASM_ARGS_3, "r"(__a4)
#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
int _a5 = (int)(a5); \
LOAD_ARGS_4(a1, a2, a3, a4); \
register int __a5 __asm__("r5") = _a5
#define ASM_ARGS_5 ASM_ARGS_4, "r"(__a5)
#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
int _a6 = (int)(a6); \
LOAD_ARGS_5(a1, a2, a3, a4, a5); \
register int __a6 __asm__("r6") = _a6
#define ASM_ARGS_6 ASM_ARGS_5, "r"(__a6)
#define __SYSCALL_CLOBBERS
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
|
