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freebsd/sys/i386/ibcs2/ibcs2_xenix.c
Søren Schmidt 69b770e238 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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/*-
* Copyright (c) 1994 Sean Eric Fagan
* Copyright (c) 1994 Søren Schmidt
* 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 withough 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.
*
* $Id: ibcs2_xenix.c,v 1.10 1994/10/12 19:38:38 sos Exp $
*/
#include <i386/ibcs2/ibcs2.h>
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/exec.h>
#include <sys/sysent.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/signal.h>
#include <sys/syslimits.h>
#include <sys/unistd.h>
#include <sys/timeb.h>
#include <vm/vm.h>
#include <machine/cpu.h>
#include <machine/psl.h>
#include <machine/reg.h>
struct ibcs2_sco_chsize_args {
int fd;
ibcs2_off_t size;
};
static int
sco_chsize(struct proc *p, struct ibcs2_sco_chsize_args *args, int *retval)
{
struct ftruncate_args {
int fd;
int pad;
off_t length;
} tmp;
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix chsize'\n");
tmp.fd = args->fd;
tmp.pad = 0;
tmp.length = args->size;
return ftruncate(p, &tmp, retval);
}
struct ibcs2_sco_ftime_args {
struct timeb *tp;
};
static int
sco_ftime(struct proc *p, struct ibcs2_sco_ftime_args *args, int *retval)
{
struct timeval atv;
extern struct timezone tz;
struct timeb tb;
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix ftime'\n");
microtime(&atv);
tb.time = atv.tv_sec;
tb.millitm = atv.tv_usec / 1000;
tb.timezone = tz.tz_minuteswest;
tb.dstflag = tz.tz_dsttime != DST_NONE;
return copyout((caddr_t)&tb, (caddr_t)args->tp, sizeof(struct timeb));
}
struct ibcs2_sco_nap_args {
long time;
};
static int
sco_nap(struct proc *p, struct ibcs2_sco_nap_args *args, int *retval)
{
long period;
extern int hz;
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix nap %d ms'\n", args->time);
period = (long)args->time / (1000/hz);
if (period)
while (tsleep(&period, PUSER, "nap", period)
!= EWOULDBLOCK) ;
return 0;
}
struct ibcs2_sco_rdchk_args {
int fd;
};
static int
sco_rdchk(struct proc *p, struct ibcs2_sco_rdchk_args *args, int *retval)
{
struct ioctl_arg {
int fd;
int cmd;
caddr_t arg;
} tmp;
int error;
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix rdchk'\n");
tmp.fd = args->fd;
tmp.cmd = FIONREAD;
tmp.arg = (caddr_t)UA_ALLOC();
error = ioctl(p, &tmp, retval);
if (!error)
*retval = *retval <= 0 ? 0 : 1;
return error;
}
struct ibcs2_sco_utsname_args {
long addr;
};
static int
sco_utsname(struct proc *p, struct ibcs2_sco_utsname_args *args, int *retval)
{
struct ibcs2_sco_utsname {
char sysname[9];
char nodename[9];
char release[16];
char kernelid[20];
char machine[9];
char bustype[9];
char sysserial[10];
unsigned short sysorigin;
unsigned short sysoem;
char numusers[9];
unsigned short numcpu;
} ibcs2_sco_uname;
extern char ostype[], hostname[], osrelease[], version[], machine[];
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix sco_utsname'\n");
bzero(&ibcs2_sco_uname, sizeof(struct ibcs2_sco_utsname));
strncpy(ibcs2_sco_uname.sysname, ostype, 8);
strncpy(ibcs2_sco_uname.nodename, hostname, 8);
strncpy(ibcs2_sco_uname.release, osrelease, 15);
strncpy(ibcs2_sco_uname.kernelid, version, 19);
strncpy(ibcs2_sco_uname.machine, machine, 8);
bcopy("ISA/EISA", ibcs2_sco_uname.bustype, 8);
bcopy("no charge", ibcs2_sco_uname.sysserial, 9);
bcopy("unlim", ibcs2_sco_uname.numusers, 8);
ibcs2_sco_uname.sysorigin = 0xFFFF;
ibcs2_sco_uname.sysoem = 0xFFFF;
ibcs2_sco_uname.numcpu = 1;
return copyout((caddr_t)&ibcs2_sco_uname, (caddr_t)args->addr,
sizeof(struct ibcs2_sco_utsname));
}
int
ibcs2_cxenix(struct proc *p, void *args, int *retval)
{
struct trapframe *tf = (struct trapframe *)p->p_md.md_regs;
switch ((tf->tf_eax & 0xff00) >> 8) {
case 0x07: /* rdchk */
return sco_rdchk(p, args, retval);
case 0x0a: /* chsize */
return sco_chsize(p, args, retval);
case 0x0b: /* ftime */
return sco_ftime(p, args, retval);
case 0x0c: /* nap */
return sco_nap(p, args, retval);
case 0x15: /* scoinfo (not documented) */
*retval = 0;
return 0;
case 0x24: /* select */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix select'\n");
return select(p, args, retval);
case 0x25: /* eaccess */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix eaccess'\n");
return ibcs2_access(p, args, retval);
case 0x27: /* sigaction */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix sigaction'\n");
return ibcs2_sigaction (p, args, retval);
case 0x28: /* sigprocmask */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix sigprocmask'\n");
return ibcs2_sigprocmask (p, args, retval);
case 0x29: /* sigpending */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix sigpending'\n");
return ibcs2_sigpending (p, args, retval);
case 0x2a: /* sigsuspend */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix sigsuspend'\n");
return ibcs2_sigsuspend (p, args, retval);
case 0x2b: /* getgroups */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix getgroups'\n");
return ibcs2_getgroups(p, args, retval);
case 0x2c: /* setgroups */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix setgroups'\n");
return ibcs2_setgroups(p, args, retval);
case 0x2d: { /* sysconf */
struct ibcs2_sysconf_args {
int num;
} *sysconf_args = args;
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix sysconf'");
switch (sysconf_args->num) {
case 0: /* _SC_ARG_MAX */
*retval = (ARG_MAX);
break;
case 1: /* _SC_CHILD_MAX */
*retval = (CHILD_MAX);
break;
case 2: /* _SC_CLK_TCK */
*retval = (CLK_TCK);
break;
case 3: /* _SC_NGROUPS_MAX */
*retval = (NGROUPS_MAX);
break;
case 4: /* _SC_OPEN_MAX */
*retval = (OPEN_MAX);
break;
case 5: /* _SC_JOB_CONTROL */
#ifdef _POSIX_JOB_CONTORL
*retval = _POSIX_JOB_CONTORL;
#else
*retval = (0);
#endif
break;
case 6: /* _SC_SAVED_IDS */
#ifdef _POSIX_SAVED_IDS
*retval = (_POSIX_SAVED_IDS);
#else
*retval = (0);
#endif
break;
case 7: /* _SC_VERSION */
*retval = (_POSIX_VERSION);
break;
default:
*retval = -1;
return EINVAL;
}
return 0;
}
case 0x2e: /* pathconf */
case 0x2f: /* fpathconf */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix (f)pathconf'\n");
return ibcs2_pathconf(p, args, retval);
case 0x30: /* rename */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix rename'\n");
return ibcs2_rename(p, args, retval);
case 0x32: /* sco_utsname */
return sco_utsname(p, args, retval);
case 0x37: /* getitimer */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix getitimer'\n");
return getitimer(p, args, retval);
case 0x38: /* setitimer */
if (ibcs2_trace & IBCS2_TRACE_XENIX)
printf("IBCS2: 'cxenix setitimer'\n");
return setitimer(p, args, retval);
/* Not implemented yet SORRY */
case 0x01: /* xlocking */
printf("IBCS2: 'cxenix xlocking'");
break;
case 0x02: /* creatsem */
printf("IBCS2: 'cxenix creatsem'");
break;
case 0x03: /* opensem */
printf("IBCS2: 'cxenix opensem'");
break;
case 0x04: /* sigsem */
printf("IBCS2: 'cxenix sigsem'");
break;
case 0x05: /* waitsem */
printf("IBCS2: 'cxenix waitsem'");
break;
case 0x06: /* nbwaitsem */
printf("IBCS2: 'cxenix nbwaitsem'");
break;
case 0x0d: /* sdget */
printf("IBCS2: 'cxenix sdget'");
break;
case 0x0e: /* sdfree */
printf("IBCS2: 'cxenix sdfree'");
break;
case 0x0f: /* sdenter */
printf("IBCS2: 'cxenix sdenter'");
break;
case 0x10: /* sdleave */
printf("IBCS2: 'cxenix sdleave'");
break;
case 0x11: /* sdgetv */
printf("IBCS2: 'cxenix sdgetv'");
break;
case 0x12: /* sdwaitv */
printf("IBCS2: 'cxenix sdwaitv'");
break;
case 0x20: /* proctl */
printf("IBCS2: 'cxenix proctl'");
break;
case 0x21: /* execseg */
printf("IBCS2: 'cxenix execseg'");
break;
case 0x22: /* unexecseg */
printf("IBCS2: 'cxenix unexecseg'");
break;
case 0x26: /* paccess */
printf("IBCS2: 'cxenix paccess'");
break;
default:
printf("IBCS2: 'cxenix' function %d(0x%x)",
tf->tf_eax>>8, tf->tf_eax>>8);
break;
}
printf(" not implemented yet\n");
return EINVAL;
}
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