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.
which is used as a basis for a more complete and cleaner ibcs2 emulator.
(snapshot about May 1995 with a few files from September 1995)
Some files and code from old emulator still remains.
New files, features, and changes have been implemented by myself,
which will be shown in following commits.
Extend test coverage:
Add and enable undocumented options TCPDEBUG, COMPAT_LINUX and IBCS2.
Add but disable (broken) pseudo device tb.
Add and enable pseudo devices su, ssc.
Add but disable (broken) devices sscape0, trix0.
Add and enable device bqu0.
finger output from 80 to 79 characters to stop the syscons
every-second-line-is-blank problem.
Also, redo the TTY column mod so that it steals one of the (usually) two
blank spaces from the before the tty column rather than from the office
phone number.
This means the office phone field width in the short finger is back to 15
characters instead of 13.
o don't use polled mode after the device probe phase
o don't biodone() a NULL buffer pointer
o increase the timeout for scsi_read_capacity(); WORMs are slooow
o make WORMMs known to scsiconf at all
This brings the driver in a state where it at least doesn't
immediately panic, nor hangs the controller any more. Unfortunately,
at least the YAMAHA CDR100 i've been testing with answered my write
attempts with an "Incorrect command sequence" response. Perhaps other
CD burners might work however.
Reviewed by: dufault
time of the target if the target file is the same as the source),
-d (debug), and -p (same as -C except for preserving the modification
time of the source if the target doesn't exists or is different from
the source.
Use library err() functions instead of our own and pass them better
exit codes.
Submitted by: wollman (and changed a lot by me)
Our ld is derived from gnu ld which doesn't check the timestamp on
__.SYMDEF. gnu ld is designed to work with gnu ar which doesn't
even have a ranlib option (gnu ar updates __.SYMDEF automatically
if __.SYMDEF already exists, so gnu ld expects __.SYMDEF to be up
to date if it exists).
option DDB_NO_LCALLS to stop ddb getting control and broke all ddb
tracing. Now there is no option and no way for ddb to trace at
address _Xsyscall or to _Xsyscall, but tracing everywhere else
works. The previous fix did unnecessary things for Linux syscalls.
Don't bother checking that syscall frames are for user mode.
Make debugger traps inside the kernel (except at addresses _Xsyscall
and _Xsyscall+1) fatal if ddb is not configured. They "can't happen".
Add prototypes.
Remove stupid comments, e.g., /*ARGSUSED*/ for args that are used.
for now since I don't have any documentation on this card yet and it
is software compatible with the earlier cards.
The 2940 *Ultra* is Adaptec's push to take SCSI to 20MHz bus rates. Its
based on the aic7880 chip which is the successor to the aic7870.
A settable redial timer helps to avoid the problem where both ends
of a link want to dial at the same time and the line winds up busy
for both ends. The process id is logged in /var/run/PPP.system where
system is the name of the called system. When both ends of a link
are running in demand dial mode, you need an easy way to get the pid
of the ppp on the called end so it can be killed and re-started with
-direct or pppd started to handle the incoming ppp session.
2. Add secret description for "set timeout" to man.
Reviewed by: Atsushi Murai <amurai@spec.co.jp>
Submitted by: John Capo <jc@irbs.com>
Prototypes are located in <sys/sysproto.h>.
Add appropriate #include <sys/sysproto.h> to files that needed
protos from systm.h.
Add structure definitions to appropriate files that relied on sys/systm.h,
right before system call definition, as in the rest of the kernel source.
In kern_prot.c, instead of using the dummy structure "args", create
individual dummy structures named <syscall>_args. This makes
life easier for prototype generation.
Add CPT_NOA type which is COMPAT with NOARGS -- do not produce argument
struct in sysproto.
Change accept, recvfrom, getsockname to CPT_NOA type.
Fix getrlimit, setrlimit argument #2 name to struct rlimit.
Instead of using a fake "compat" argument, pass a real compat int to function
if COMPAT_43 is defined. Functions involved: wait4, accept, recvfrom,
getsockname.
With the compat psuedo-argument, this introduces an argument structure
that can have two possible sizes depending on compat options.
This makes life difficult for lkm modules like ibcs2, which would
have to guess what size used in kernel when compiled. Also,
the prototype generator for these structures cannot generate proper sizes.
Now there is only one fixed structure and makes everybody happy.
I recommend these changes be introduced to 2.1 so that ibcs2, linux
lkm's generated for 2.2 can still run on a 2.1 kernel.
