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41 lines
871 B
C
41 lines
871 B
C
/* $NetBSD: SYS.h,v 1.13 2014/08/23 02:24:22 matt Exp $ */
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#include <machine/asm.h>
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#include <sys/syscall.h>
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#define BRANCH_TO_CERROR() b _C_LABEL(__cerror)
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#define _DOSYSCALL(x) li %r0,(SYS_ ## x) ;\
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sc
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#define _SYSCALL_NOERROR(x,y) .text ;\
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.p2align 2 ;\
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ENTRY(x) ;\
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_DOSYSCALL(y)
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#define _SYSCALL(x,y) .text ;\
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.p2align 2 ;\
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2: BRANCH_TO_CERROR() ;\
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_SYSCALL_NOERROR(x,y) ;\
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bso 2b
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#define SYSCALL_NOERROR(x) _SYSCALL_NOERROR(x,x)
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#define SYSCALL(x) _SYSCALL(x,x)
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#define PSEUDO_NOERROR(x,y) _SYSCALL_NOERROR(x,y) ;\
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blr ;\
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END(x)
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#define PSEUDO(x,y) _SYSCALL_NOERROR(x,y) ;\
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bnslr ;\
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BRANCH_TO_CERROR() ;\
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END(x)
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#define RSYSCALL_NOERROR(x) PSEUDO_NOERROR(x,x)
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#define RSYSCALL(x) PSEUDO(x,x)
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#define WSYSCALL(weak,strong) WEAK_ALIAS(weak,strong) ;\
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PSEUDO(strong,weak)
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