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Handle unimplemented syscall by instantly returning ENOSYS instead of sending

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signal first and only then returning ENOSYS to match what real linux does.

PR:		kern/74302
Submitted by:	Travis Poppe <tlp@LiquidX.org>
This commit is contained in:
Maxim Sobolev 2005-03-07 00:18:06 +00:00
parent 5c16270365
commit e3478fe000
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=143197
5 changed files with 57 additions and 0 deletions
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4
sys/alpha/linux/syscalls.master
View File

@ -31,9 +31,13 @@
#include <sys/param.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <compat/linux/linux_sysproto.h>
#include <alpha/linux/linux.h>
#include <alpha/linux/linux_proto.h>
; Isn't pretty, but there seems to be no other way to trap nosys
#define nosys linux_nosys
; #ifdef's, etc. may be included, and are copied to the output files.
0 UNIMPL

4
sys/amd64/linux32/syscalls.master
View File

@ -25,9 +25,13 @@
#include <sys/param.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <compat/linux/linux_sysproto.h>
#include <amd64/linux32/linux.h>
#include <amd64/linux32/linux32_proto.h>
; Isn't pretty, but there seems to be no other way to trap nosys
#define nosys linux_nosys
; #ifdef's, etc. may be included, and are copied to the output files.
0 UNIMPL setup

9
sys/compat/linux/linux_misc.c
View File

@ -74,6 +74,8 @@ __FBSDID("$FreeBSD$");
#include "opt_compat.h"
#include <compat/linux/linux_sysproto.h>
#ifdef COMPAT_LINUX32
#include <machine/../linux32/linux.h>
#include <machine/../linux32/linux32_proto.h>
@ -1392,3 +1394,10 @@ linux_getsid(struct thread *td, struct linux_getsid_args *args)
bsd.pid = args->pid;
return getsid(td, &bsd);
}
int
linux_nosys(struct thread *td, struct nosys_args *ignore)
{
return (ENOSYS);
}

36
sys/compat/linux/linux_sysproto.h Normal file
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@ -0,0 +1,36 @@
/*-
* Copyright (c) 2005 Travis Poppe
* All rights reserved.
*
* 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
* in this position and unchanged.
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
* $FreeBSD$
*/
#ifndef LINUX_SYSPROTO
#define LINUX_SYSPROTO
int linux_nosys(struct thread *, struct nosys_args *);
#endif

4
sys/i386/linux/syscalls.master
View File

@ -25,9 +25,13 @@
#include <sys/param.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <compat/linux/linux_sysproto.h>
#include <i386/linux/linux.h>
#include <i386/linux/linux_proto.h>
; Isn't pretty, but there seems to be no other way to trap nosys
#define nosys linux_nosys
; #ifdef's, etc. may be included, and are copied to the output files.
0 UNIMPL setup