minix/lib/nbsd_libc/arch/powerpc/SYS.h

44 lines
917 B
C
Raw Normal View History

/* $NetBSD: SYS.h,v 1.12 2011/01/15 07:31:12 matt Exp $ */
#include <machine/asm.h>
#include <sys/syscall.h>
#ifdef __STDC__
#define _DOSYSCALL(x) li %r0,(SYS_ ## x) ;\
sc
#else
#define _DOSYSCALL(x) li %r0,(SYS_/**/x) ;\
sc
#endif /* __STDC__ */
#define _SYSCALL_NOERROR(x,y) .text ;\
.align 2 ;\
ENTRY(x) ;\
_DOSYSCALL(y)
#define _SYSCALL(x,y) .text ;\
.align 2 ;\
2: b _C_LABEL(__cerror) ;\
_SYSCALL_NOERROR(x,y) ;\
bso 2b
#define SYSCALL_NOERROR(x) _SYSCALL_NOERROR(x,x)
#define SYSCALL(x) _SYSCALL(x,x)
#define PSEUDO_NOERROR(x,y) _SYSCALL_NOERROR(x,y) ;\
blr ;\
END(x)
#define PSEUDO(x,y) _SYSCALL_NOERROR(x,y) ;\
bnslr ;\
b _C_LABEL(__cerror) ;\
END(x)
#define RSYSCALL_NOERROR(x) PSEUDO_NOERROR(x,x)
#define RSYSCALL(x) PSEUDO(x,x)
#define WSYSCALL(weak,strong) WEAK_ALIAS(weak,strong) ;\
PSEUDO(strong,weak)