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freebsd-dev/sys/i386/ibcs2/ibcs2_isc.c

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iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
/*-
* Copyright (c) 1994 S<EFBFBD>ren Schmidt
* Copyright (c) 1994 Sean Eric Fagan
Remove old files no longer needed. Add new files created for emulator. Modify NetBSD import to work with FreeBSD and add new features and code. The complete emulator is essentially a combination of work/code implemented by Sean Eric Fagan, Soren Schmidt, Scott Bartram, and myself, Steven Wallace. Features of this new emulator system include: o "clean" code, including strict prototyping. o Auto-generation of ibcs2 system calls, xenix system calls, isc system calls. Generation includes system tables, structure definitions, and prototyping of function calls. o ibcs2 emulator does not rely on any COMPAT_43 system calls. o embedded socksys support o ibcs2 msgsys, semsys, shmsys calls supported if supported in kernel o alternate /emul/ibcs2 namespace searched first for files in ibcs2 system. Usefull to keep sysv libraries, binaries in /emul/ibcs2. o many other finer details and functions fixed or implemented.
1995-10-10 07:59:30 +00:00
* Copyright (c) 1995 Steven Wallace
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
* 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
Fix typo in the BSD copyright: s/withough/without/ Spotted and suggested by: des MFC after: 3 weeks
2002-06-02 20:05:59 +00:00
* derived from this software without specific prior written permission
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
*
* 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.
*/
Use __FBSDID().
2003-06-02 06:48:51 +00:00
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
#include <sys/param.h>
Conditionally acquire Giant around the ISC and Xenix system calls based on the SYF_MPSAFE flag in the wrapper system calls for the ISC and Xenix system call vectors. Approved by: re (scottl)
2005-07-07 19:28:55 +00:00
#include <sys/lock.h>
#include <sys/mutex.h>
add <sys/sytm.h> (for cpufunc.h -> rdtsc)
2001-07-21 20:53:42 +00:00
#include <sys/systm.h>
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
#include <sys/sysent.h>
Untangled the vm.h include file spaghetti.
1995-12-07 12:48:31 +00:00
#include <sys/proc.h>
Remove old files no longer needed. Add new files created for emulator. Modify NetBSD import to work with FreeBSD and add new features and code. The complete emulator is essentially a combination of work/code implemented by Sean Eric Fagan, Soren Schmidt, Scott Bartram, and myself, Steven Wallace. Features of this new emulator system include: o "clean" code, including strict prototyping. o Auto-generation of ibcs2 system calls, xenix system calls, isc system calls. Generation includes system tables, structure definitions, and prototyping of function calls. o ibcs2 emulator does not rely on any COMPAT_43 system calls. o embedded socksys support o ibcs2 msgsys, semsys, shmsys calls supported if supported in kernel o alternate /emul/ibcs2 namespace searched first for files in ibcs2 system. Usefull to keep sysv libraries, binaries in /emul/ibcs2. o many other finer details and functions fixed or implemented.
1995-10-10 07:59:30 +00:00
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
#include <machine/cpu.h>
Remove old files no longer needed. Add new files created for emulator. Modify NetBSD import to work with FreeBSD and add new features and code. The complete emulator is essentially a combination of work/code implemented by Sean Eric Fagan, Soren Schmidt, Scott Bartram, and myself, Steven Wallace. Features of this new emulator system include: o "clean" code, including strict prototyping. o Auto-generation of ibcs2 system calls, xenix system calls, isc system calls. Generation includes system tables, structure definitions, and prototyping of function calls. o ibcs2 emulator does not rely on any COMPAT_43 system calls. o embedded socksys support o ibcs2 msgsys, semsys, shmsys calls supported if supported in kernel o alternate /emul/ibcs2 namespace searched first for files in ibcs2 system. Usefull to keep sysv libraries, binaries in /emul/ibcs2. o many other finer details and functions fixed or implemented.
1995-10-10 07:59:30 +00:00
#include <i386/ibcs2/ibcs2_types.h>
#include <i386/ibcs2/ibcs2_signal.h>
#include <i386/ibcs2/ibcs2_proto.h>
#include <i386/ibcs2/ibcs2_isc_syscall.h>
extern struct sysent isc_sysent[];
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
int
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
ibcs2_isc(struct thread *td, struct ibcs2_isc_args *uap)
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
{
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
struct trapframe *tf = td->td_frame;
Remove old files no longer needed. Add new files created for emulator. Modify NetBSD import to work with FreeBSD and add new features and code. The complete emulator is essentially a combination of work/code implemented by Sean Eric Fagan, Soren Schmidt, Scott Bartram, and myself, Steven Wallace. Features of this new emulator system include: o "clean" code, including strict prototyping. o Auto-generation of ibcs2 system calls, xenix system calls, isc system calls. Generation includes system tables, structure definitions, and prototyping of function calls. o ibcs2 emulator does not rely on any COMPAT_43 system calls. o embedded socksys support o ibcs2 msgsys, semsys, shmsys calls supported if supported in kernel o alternate /emul/ibcs2 namespace searched first for files in ibcs2 system. Usefull to keep sysv libraries, binaries in /emul/ibcs2. o many other finer details and functions fixed or implemented.
1995-10-10 07:59:30 +00:00
struct sysent *callp;
Conditionally acquire Giant around the ISC and Xenix system calls based on the SYF_MPSAFE flag in the wrapper system calls for the ISC and Xenix system call vectors. Approved by: re (scottl)
2005-07-07 19:28:55 +00:00
u_int code;
int error;
Remove trailing whitespace.
1995-05-30 08:16:23 +00:00
Remove old files no longer needed. Add new files created for emulator. Modify NetBSD import to work with FreeBSD and add new features and code. The complete emulator is essentially a combination of work/code implemented by Sean Eric Fagan, Soren Schmidt, Scott Bartram, and myself, Steven Wallace. Features of this new emulator system include: o "clean" code, including strict prototyping. o Auto-generation of ibcs2 system calls, xenix system calls, isc system calls. Generation includes system tables, structure definitions, and prototyping of function calls. o ibcs2 emulator does not rely on any COMPAT_43 system calls. o embedded socksys support o ibcs2 msgsys, semsys, shmsys calls supported if supported in kernel o alternate /emul/ibcs2 namespace searched first for files in ibcs2 system. Usefull to keep sysv libraries, binaries in /emul/ibcs2. o many other finer details and functions fixed or implemented.
1995-10-10 07:59:30 +00:00
code = (tf->tf_eax & 0xffffff00) >> 8;
callp = &isc_sysent[code];
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
Conditionally acquire Giant around the ISC and Xenix system calls based on the SYF_MPSAFE flag in the wrapper system calls for the ISC and Xenix system call vectors. Approved by: re (scottl)
2005-07-07 19:28:55 +00:00
if (code < IBCS2_ISC_MAXSYSCALL) {
if ((callp->sy_narg & SYF_MPSAFE) == 0)
mtx_lock(&Giant);
error = (*callp->sy_call)(td, (void *)uap);
if ((callp->sy_narg & SYF_MPSAFE) == 0)
mtx_unlock(&Giant);
} else
error = ENOSYS;
return (error);
iBCS2 emulator core files. This is the main files for the iBCS2 emulator. It can be use compiled into the kernel by using: options IBCS2 options COMPAT_IBCS2 or as a lkm module using: options COMPAT_IBCS2 and then loading it via the ibcs2 script in /usr/bin REMEMBER: this code is still experimental ! NO WARRENTY ! Submitted by: sef@kithrup.com, mostyn@mrl.com, sos@kmd-ac.dk
1994-10-14 08:53:16 +00:00
}
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