OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [linux/] [uClibc/] [libc/] [sysdeps/] [linux/] [cris/] [bits/] [syscalls.h] - Blame information for rev 1779

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 1325 phoenix
#ifndef _BITS_SYSCALLS_H
2
#define _BITS_SYSCALLS_H
3
 
4
#ifndef _SYSCALL_H
5
#error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."
6
#endif
7
 
8
/* Include the __NR_<name> definitions. */
9
#include <bits/sysnum.h>
10
 
11
#if 0
12
#ifndef __set_errno
13
#define __set_errno(val) (*__errno_location()) = (val)
14
#endif
15
#endif
16
 
17
#undef SYS_ify
18
#define SYS_ify(syscall_name)   (__NR_##syscall_name)
19
 
20
#ifndef __ASSEMBLER__
21
 
22
#undef _syscall0
23
#define _syscall0(type,name) \
24
type name(void) \
25
{ \
26
return (type) (INLINE_SYSCALL(name, 0)); \
27
}
28
 
29
#undef _syscall1
30
#define _syscall1(type,name,type1,arg1) \
31
type name(type1 arg1) \
32
{ \
33
return (type) (INLINE_SYSCALL(name, 1, arg1)); \
34
}
35
 
36
#undef _syscall2
37
#define _syscall2(type,name,type1,arg1,type2,arg2) \
38
type name(type1 arg1,type2 arg2) \
39
{ \
40
return (type) (INLINE_SYSCALL(name, 2, arg1, arg2)); \
41
}
42
 
43
#undef _syscall3
44
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
45
type name(type1 arg1,type2 arg2,type3 arg3) \
46
{ \
47
return (type) (INLINE_SYSCALL(name, 3, arg1, arg2, arg3)); \
48
}
49
 
50
#undef _syscall4
51
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
52
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
53
{ \
54
return (type) (INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4)); \
55
}
56
 
57
#undef _syscall5
58
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
59
          type5,arg5) \
60
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
61
{ \
62
return (type) (INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5)); \
63
}
64
 
65
#undef INLINE_SYSCALL
66
#define INLINE_SYSCALL(name, nr, args...)       \
67
  ({                                            \
68
     unsigned long __sys_res;                   \
69
     register unsigned long __res asm ("r10");  \
70
     LOAD_ARGS_c_##nr (args)                    \
71
     register unsigned long __callno asm ("r9") \
72
       = SYS_ify (name);                        \
73
     asm volatile (LOAD_ARGS_asm_##nr (args)    \
74
                   CHECK_ARGS_asm_##nr          \
75
                   "break 13"                   \
76
                   : "=r" (__res)               \
77
                   : ASM_ARGS_##nr (args)       \
78
                   : ASM_CLOBBER_##nr);         \
79
     __sys_res = __res;                         \
80
                                                \
81
     if (__sys_res >= (unsigned long) -4096)    \
82
       {                                        \
83
         __set_errno (- __sys_res);             \
84
         __sys_res = (unsigned long) -1;        \
85
       }                                        \
86
     __sys_res;                                 \
87
   })
88
 
89
#define LOAD_ARGS_c_0()
90
#define LOAD_ARGS_asm_0()
91
#define ASM_CLOBBER_0 "memory"
92
#define ASM_ARGS_0() "r" (__callno)
93
#define CHECK_ARGS_asm_0
94
 
95
#define LOAD_ARGS_c_1(r10) \
96
        LOAD_ARGS_c_0()                                         \
97
        register unsigned long __r10 __asm__ ("r10") = (unsigned long) (r10);
98
#define LOAD_ARGS_asm_1(r10) LOAD_ARGS_asm_0 ()
99
#define ASM_CLOBBER_1 ASM_CLOBBER_0
100
#define ASM_ARGS_1(r10) ASM_ARGS_0 (), "0" (__r10)
101
#define CHECK_ARGS_asm_1                        \
102
        ".ifnc %0,$r10\n\t"                     \
103
        ".err\n\t"                              \
104
        ".endif\n\t"
105
 
106
#define LOAD_ARGS_c_2(r10, r11) \
107
        LOAD_ARGS_c_1(r10)                                      \
108
        register unsigned long __r11 __asm__ ("r11") = (unsigned long) (r11);
109
#define LOAD_ARGS_asm_2(r10, r11) LOAD_ARGS_asm_1 (r10)
110
#define ASM_CLOBBER_2 ASM_CLOBBER_1
111
#define ASM_ARGS_2(r10, r11) ASM_ARGS_1 (r10), "r" (__r11)
112
#define CHECK_ARGS_asm_2                        \
113
        ".ifnc %0-%3,$r10-$r11\n\t"             \
114
        ".err\n\t"                              \
115
        ".endif\n\t"
116
 
117
#define LOAD_ARGS_c_3(r10, r11, r12) \
118
        LOAD_ARGS_c_2(r10, r11)                                 \
119
        register unsigned long __r12 __asm__ ("r12") = (unsigned long) (r12);
120
#define LOAD_ARGS_asm_3(r10, r11, r12) LOAD_ARGS_asm_2 (r10, r11)
121
#define ASM_CLOBBER_3 ASM_CLOBBER_2
122
#define ASM_ARGS_3(r10, r11, r12) ASM_ARGS_2 (r10, r11), "r" (__r12)
123
#define CHECK_ARGS_asm_3                        \
124
        ".ifnc %0-%3-%4,$r10-$r11-$r12\n\t"     \
125
        ".err\n\t"                              \
126
        ".endif\n\t"
127
 
128
#define LOAD_ARGS_c_4(r10, r11, r12, r13) \
129
        LOAD_ARGS_c_3(r10, r11, r12)                            \
130
        register unsigned long __r13 __asm__ ("r13") = (unsigned long) (r13);
131
#define LOAD_ARGS_asm_4(r10, r11, r12, r13) LOAD_ARGS_asm_3 (r10, r11, r12)
132
#define ASM_CLOBBER_4 ASM_CLOBBER_3
133
#define ASM_ARGS_4(r10, r11, r12, r13) ASM_ARGS_3 (r10, r11, r12), "r" (__r13)
134
#define CHECK_ARGS_asm_4                                \
135
        ".ifnc %0-%3-%4-%5,$r10-$r11-$r12-$r13\n\t"     \
136
        ".err\n\t"                                      \
137
        ".endif\n\t"
138
 
139
#define LOAD_ARGS_c_5(r10, r11, r12, r13, mof) \
140
        LOAD_ARGS_c_4(r10, r11, r12, r13)
141
#define LOAD_ARGS_asm_5(r10, r11, r12, r13, mof) \
142
        LOAD_ARGS_asm_4 (r10, r11, r12, r13) "move %6,$mof\n\t"
143
#define ASM_CLOBBER_5 ASM_CLOBBER_4
144
#define ASM_ARGS_5(r10, r11, r12, r13, mof) \
145
        ASM_ARGS_4 (r10, r11, r12, r13), "g" (mof)
146
#define CHECK_ARGS_asm_5 CHECK_ARGS_asm_4
147
 
148
#define LOAD_ARGS_c_6(r10, r11, r12, r13, mof, srp)             \
149
        LOAD_ARGS_c_5(r10, r11, r12, r13, mof)
150
#define LOAD_ARGS_asm_6(r10, r11, r12, r13, mof, srp)           \
151
        LOAD_ARGS_asm_5(r10, r11, r12, r13, mof)                \
152
        "move %7,$srp\n\t"
153
#define ASM_CLOBBER_6 ASM_CLOBBER_5, "srp"
154
#define ASM_ARGS_6(r10, r11, r12, r13, mof, srp) \
155
        ASM_ARGS_5 (r10, r11, r12, r13, mof), "g" (srp)
156
#define CHECK_ARGS_asm_6 CHECK_ARGS_asm_5
157
 
158
#endif /* not __ASSEMBLER__ */
159
#endif /* _BITS_SYSCALLS_H */

powered by: WebSVN 2.1.0

© copyright 1999-2025 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.