c37592a194
and treating (almost) all system calls the same way: __sys_foo - actual syscall foo, _foo - weak definitions to __sys_foo Change PSEUDO syscalls (currently only _exit and _getlogin) to be __sys_foo (T) and _foo (W). Add $FreeBSD$ to a few files to satisfy commitprep. Suggested by: bde
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* $FreeBSD$ */
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/* From: NetBSD: SYS.h,v 1.5 1997/05/02 18:15:15 kleink Exp */
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <machine/asm.h>
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#ifdef __NETBSD_SYSCALLS
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#include <sys/netbsd_syscall.h>
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#else
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#include <sys/syscall.h>
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#endif
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#define CALLSYS_ERROR(name) \
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CALLSYS_NOERROR(name); \
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br gp, LLABEL(name,0); \
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LLABEL(name,0): \
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LDGP(gp); \
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beq a3, LLABEL(name,1); \
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jmp zero, .cerror; \
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LLABEL(name,1):
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#define SYSCALL(name) \
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LEAF(__CONCAT(__sys_,name),0); /* XXX # of args? */ \
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WEAK_ALIAS(name, __CONCAT(__sys_,name)); \
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WEAK_ALIAS(__CONCAT(_,name), __CONCAT(__sys_,name)); \
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CALLSYS_ERROR(name)
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#define SYSCALL_NOERROR(name) \
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LEAF(__CONCAT(__sys_,name),0); /* XXX # of args? */ \
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WEAK_ALIAS(name, __CONCAT(__sys_,name)); \
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WEAK_ALIAS(__CONCAT(_,name), __CONCAT(__sys_,name)); \
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CALLSYS_NOERROR(name)
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#define RSYSCALL(name) \
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SYSCALL(name); \
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RET; \
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END(__CONCAT(__sys_,name))
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#define RSYSCALL_NOERROR(name) \
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SYSCALL_NOERROR(name); \
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RET; \
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END(__CONCAT(__sys_,name))
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#define PSEUDO(name) \
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LEAF(__CONCAT(__sys_,name),0); /* XXX # of args? */ \
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WEAK_ALIAS(__CONCAT(_,name), __CONCAT(__sys_, name)); \
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CALLSYS_ERROR(name); \
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RET; \
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END(__CONCAT(__sys_,name))
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