5a6b8191b5
EMUL_BSD_ASYNCIO_PIPE notes that the emulated binaries expect the original BSD pipe behavior for asynchronous I/O, which is to fire SIGIO on read() and write(). OSes without this flag do not expect any SIGIO to be fired on read() and write() for pipes, even when async I/O was requested. As far as we know, the OSes that need EMUL_BSD_ASYNCIO_PIPE are NetBSD, OSF/1 and Darwin. EMUL_NO_SIGIO_ON_READ notes that the emulated binaries that requested asynchrnous I/O expect the reader process to be notified by a SIGIO, but not the writer process. OSes without this flag expect the reader and the writer to be notified when some data has arrived or when some data have been read. As far as we know, the OSes that need EMUL_NO_SIGIO_ON_READ are Linux and SunOS.
74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/* $NetBSD: osf1_exec.c,v 1.22 2001/05/06 19:09:53 manu Exp $ */
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/*
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* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/signalvar.h>
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#include <compat/osf1/osf1.h>
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#include <compat/osf1/osf1_syscall.h>
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#include <compat/osf1/osf1_cvt.h>
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extern struct sysent osf1_sysent[];
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extern const char * const osf1_syscallnames[];
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extern char osf1_sigcode[], osf1_esigcode[];
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#ifdef __HAVE_SYSCALL_INTERN
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void osf1_syscall_intern __P((struct proc *));
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#else
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void syscall __P((void));
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#endif
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const struct emul emul_osf1 = {
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"osf1",
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"/emul/osf1",
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#ifndef __HAVE_MINIMAL_EMUL
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EMUL_BSD_ASYNCIO_PIPE,
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(int *)osf1_errno_rxlist,
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OSF1_SYS_syscall,
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OSF1_SYS_MAXSYSCALL,
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#endif
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osf1_sysent,
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osf1_syscallnames,
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sendsig,
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osf1_sigcode,
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osf1_esigcode,
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NULL,
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NULL,
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NULL,
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#ifdef __HAVE_SYSCALL_INTERN
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osf1_syscall_intern,
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#else
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syscall,
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#endif
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};
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