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/* $OpenBSD: SYS.h,v 1.6 2023/12/11 22:29:24 deraadt Exp $ */
/*
* Copyright (c) 1999 Dale Rahn
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/syscall.h>
#include <machine/asm.h>
#define PINSYSCALL(sysno, label) \
.pushsection .openbsd.syscalls,"",@progbits ;\
.p2align 2 ;\
.long label ;\
.long sysno ;\
.popsection
#define DL_SYSCALL(n) \
ENTRY(_dl_##n) \
RETGUARD_SETUP(_dl_##n, %r11, %r12) ;\
li 0, SYS_##n ;\
99: sc ;\
PINSYSCALL(SYS_##n, 99b) ;\
cmpwi 0, 0 ;\
beq+ .L_end##n ;\
neg 3, 3 ;\
.L_end##n: ;\
RETGUARD_CHECK(_dl_##n, %r11, %r12) ;\
blr
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