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
|
#ifndef _BITS_SYSCALLS_H
#define _BITS_SYSCALLS_H
#ifndef _SYSCALL_H
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
* header files. It also defines the traditional `SYS_<name>' macros for older
* programs. */
#include <bits/sysnum.h>
#define STRINGIFY(s) STRINGIFY2 (s)
#define STRINGIFY2(s) #s
#ifdef __PIC__
#define JUMPTARGET(name) STRINGIFY(name##@plt)
#else
#define JUMPTARGET(name) STRINGIFY(name)
#endif
#define unified_syscall_body(name) \
__asm__ ( \
".section \".text\"\n\t" \
".align 2\n\t" \
".globl "###name"\n\t" \
".type "###name",@function\n" \
#name":\n\tli 0," STRINGIFY(__NR_##name) "\n\t" \
"b "JUMPTARGET(__uClibc_syscall)"\n" \
".Lfe1"###name":\n\t" \
".size\t"###name ",.Lfe1"###name"-"###name"\n" \
)
#undef _syscall0
#define _syscall0(type,name) \
type name(void); \
unified_syscall_body(name)
#undef _syscall1
#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1); \
unified_syscall_body(name)
#undef _syscall2
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1, type2 arg2); \
unified_syscall_body(name)
#undef _syscall3
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name(type1 arg1, type2 arg2, type3 arg3); \
unified_syscall_body(name)
#undef _syscall4
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4); \
unified_syscall_body(name)
#undef _syscall5
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5); \
unified_syscall_body(name)
#undef _syscall6
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6); \
unified_syscall_body(name)
#endif /* _BITS_SYSCALLS_H */
|