SYS.h revision 1.13 1 /* $NetBSD: SYS.h,v 1.13 2014/08/23 02:24:22 matt Exp $ */
2
3 #include <machine/asm.h>
4 #include <sys/syscall.h>
5
6 #define BRANCH_TO_CERROR() b _C_LABEL(__cerror)
7
8 #define _DOSYSCALL(x) li %r0,(SYS_ ## x) ;\
9 sc
10
11 #define _SYSCALL_NOERROR(x,y) .text ;\
12 .p2align 2 ;\
13 ENTRY(x) ;\
14 _DOSYSCALL(y)
15
16 #define _SYSCALL(x,y) .text ;\
17 .p2align 2 ;\
18 2: BRANCH_TO_CERROR() ;\
19 _SYSCALL_NOERROR(x,y) ;\
20 bso 2b
21
22 #define SYSCALL_NOERROR(x) _SYSCALL_NOERROR(x,x)
23
24 #define SYSCALL(x) _SYSCALL(x,x)
25
26 #define PSEUDO_NOERROR(x,y) _SYSCALL_NOERROR(x,y) ;\
27 blr ;\
28 END(x)
29
30 #define PSEUDO(x,y) _SYSCALL_NOERROR(x,y) ;\
31 bnslr ;\
32 BRANCH_TO_CERROR() ;\
33 END(x)
34
35 #define RSYSCALL_NOERROR(x) PSEUDO_NOERROR(x,x)
36
37 #define RSYSCALL(x) PSEUDO(x,x)
38
39 #define WSYSCALL(weak,strong) WEAK_ALIAS(weak,strong) ;\
40 PSEUDO(strong,weak)
41