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/* $OpenBSD: SYS.h,v 1.6 2001/06/13 11:44:25 art Exp $ */
/* $NetBSD: SYS.h,v 1.4 1996/10/17 03:03:53 cgd Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <machine/asm.h>
#include <sys/syscall.h>
#define CALLSYS_ERROR(name) \
CALLSYS_NOERROR(name); \
br gp, LLABEL(name,0); \
LLABEL(name,0): \
LDGP(gp); \
beq a3, LLABEL(name,1); \
jmp zero, cerror; \
LLABEL(name,1):
#define __LEAF(p,n,e) \
LEAF(___CONCAT(p,n),e)
#define __END(p,n) \
END(___CONCAT(p,n))
#define __SYSCALL(p,name) \
__LEAF(p,name,0); /* XXX # of args? */ \
CALLSYS_ERROR(name)
#define __SYSCALL_NOERROR(p,name) \
__LEAF(p,name,0); /* XXX # of args? */ \
CALLSYS_NOERROR(name)
#define __RSYSCALL(p,name) \
__SYSCALL(p,name); \
RET; \
__END(p,name)
#define __RSYSCALL_NOERROR(p,name) \
__SYSCALL_NOERROR(p,name); \
RET; \
__END(p,name)
#define __PSEUDO(p,label,name) \
__LEAF(p,label,0); /* XXX # of args? */ \
CALLSYS_NOERROR(name); \
RET; \
__END(p,label);
#ifdef _THREAD_SAFE
/*
* For the thread_safe versions, we prepend _thread_sys_ to the function
* name so that the 'C' wrapper can go around the real name.
*/
# define SYSCALL(x) __SYSCALL(_thread_sys_,x)
# define SYSCALL_NOERROR(x) __SYSCALL_NOERROR(_thread_sys_,x)
# define RSYSCALL(x) __RSYSCALL(_thread_sys_,x)
# define RSYSCALL_NOERROR(x) __RSYSCALL_NOERROR(_thread_sys_,x)
# define PSEUDO(x,y) __PSEUDO(_thread_sys_,x,y)
# define SYSLEAF(x,e) __LEAF(_thread_sys_,x,e)
# define SYSEND(x) __END(_thread_sys_,x)
#else /* _THREAD_SAFE */
/*
* The non-threaded library defaults to traditional syscalls where
* the function name matches the syscall name.
*/
# define SYSCALL(x) __SYSCALL(,x)
# define SYSCALL_NOERROR(x) __SYSCALL_NOERROR(,x)
# define RSYSCALL(x) __RSYSCALL(,x)
# define RSYSCALL_NOERROR(x) __RSYSCALL_NOERROR(,x)
# define PSEUDO(x,y) __PSEUDO(,x,y)
# define SYSLEAF(x,e) __LEAF(,x,e)
# define SYSEND(x) __END(,x)
#endif /* _THREAD_SAFE */
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