Tue Jul 18 09:01:53 BST 1995
* Fixed timod getinfo ioctl. This functionality should move
into the message handling as bind has.
-- Mike
Mon Jul 17 10:16:43 BST 1995
* Added handling of BSD-ish sgtty ioctls. For some reason the
SVR4 network programs such as telnet have been modified to
pushd the ttold STREAMS modules and use sgtty calls instead
of simply using termio[s]. Don't blame me! :-)
-- Mike
* Restructuring of timod.c complete. Timod ioctls now use
message routines to avoid duplicating code.
-- Mike
Wed Jul 12 14:44:30 BST 1995
* Made debug output in binfmt_coff.c less verbose. We only
really care about matched comment strings. If we dump them
all here we overrun the kernel message buffer and miss
interesting stuff when the program actually starts running.
-- Mike
* Changed __get_free_pages in binfmt_coff.c to give the extra
argument required in 1.3 kernels.
-- Mike
Tue Jul 4 11:48:27 BST 1995
* Restructure timod.c ready to rewrite timod_ioctl to use
putmsg/getmsg rather than reimplementing the same message
protocol again.
-- Mike
Mon Jul 3 13:41:49 BST 1995
* Initial TLI support for outgoing TCP and UDP. Merged BSD/Wyse
socket ioctl handling with the socksys handler. Fixed (some)
bugs in poll() emulation. Devices in /dev/inet have changed
to support TLI access. See README for details.
-- Mike
Tue Jun 27 09:00:02 BST 1995
* Don't export symbols from iBCS. I'm not sure when register_symtab
was introduced so we only drop our symbol table in 1.3
and later.
-- Mike
* Added missing brackets in binfmt_elf.c as per kernel
patch 1.3.4.
-- Mike
Thu Jun 22 13:09:49 BST 1995
* Big step forward with TLI. I now seem to understand what is
happening when and have enough to do the initial open and
get info requests. This may one day actually work...
-- Mike
* Trap EUC ioctls and return EINVAL. We don't do EUC :-).
-- Mike
* Changes for the 1.3 development kernel. This compiles but is
as yet untested. It still seems ok with 1.2.10.
-- Mike
Wed Jun 14 09:15:39 BST 1995
* Added Eric's protection mapping fixes to binfmt_elf.c
from 1.2.10.
-- Mike
Fri Jun 9 12:31:53 BST 1995
* Linux can't stat unmounted filesystems but SCO can (by
specifying the pathname/fd of a block device and the
filesystem type. Linux will just stat the filesystem
that the device node is on (i.e. the root filesystem).
There isn't much we can do about it. I just lie and
claim there is 100MB free of 1GB. I hope this won't
cause too much grief...
-- Mike
Thu May 18 12:06:50 BST 1995
* When trying to get an IP domain name don't try the utsname
domainname if it is "(none)". If we get that far we have to
give in and return a blank domain name.
-- Mike
Wed May 17 10:15:42 BST 1995
* Recheck the socket functions when accept returns a new socket.
This is pedantic at this stage since we must have had a
socket initially and the current kernel code isn't likely
to handle removal and reloading of in use modules. iBCS
can handle this happening to it though :-).
-- Mike
* Fix timod faking to correctly return an error if given an
invalid file descriptor rather than trying to dereference
a null pointer in kernel mode.
-- Mike
Tue Apr 25 11:35:43 BST 1995
* If nap() is given a zero timeout return immediately rather
than blocking indefinitely. Ensure that SIGALRM is not ignored
during the pause or we never get woken up by the timeout.
-- Mike
Mon Apr 24 09:21:30 BST 1995
* Various documentation updates from Eric.
-- Mike
Fri Apr 21 14:34:25 BST 1995
* Fixes to IPC. Now it really *should* work...
-- Mike
Thu Apr 13 14:03:45 BST 1995
* Tidy up documentation ready for new release.
-- Mike
Wed Apr 12 11:07:52 BST 1995
* Moved to an ELF development system with a GCC 2.6.4 snapshot.
This pointed out a few signed/unsigned mismatches so I
fixed them. We also have to ensure that x286emul is built
as a QMAGIC a.out because it won't work any other way. It
isn't likely to work any other way unless someone pays for
for it to be done - it isn't what you might call a "sexy"
project...
-- Mike
Wed Apr 12 08:53:22 BST 1995
* Added the kernel patch to handle statically linked SVR4 ELF
binaries to the Patches directory since it doesn't seem to
have made any of the 1.2.x patches yet.
-- Mike
Tue Mar 28 09:55:38 BST 1995
* Made the ISC specific stuff optional via CONFIG.
-- Mike
* 1. INTERACTIVE UNIX signal numbers are different from IBCS2.
I added new signalmaps and exec_domains.
2. setpgrp does not deattach the controlling terminal.
Try the setpgrp test program included here after the patch
on real SCO or xxxx and Linux/IBCS2.
3. sigset behavior is incorrect. Test program also included.
Short description: signal handlers registered whith sigset
should run with the signal blocked, and after return
the handler must be restored, so sa_flags = 0
is the correct setting.
Calling sigset should remove the signal from the
blocked set.
-- Remete Gabor < rg@tomx.elte.hu>
Fri Mar 24 10:20:57 GMT 1995
* Set the fragment size to zero for [f]statfs() just to be
pedantic (SCO does this).
-- Mike
Tue Mar 21 10:24:14 GMT 1995
* Fixes to 286 overlay and x.out loader by Don Camp
< don@funsoft.com>.
-- Mike
* New code for SVR4 {get,set}groups since SVR4 uses longs
for gids whereas Linux uses shorts.
-- Mike
Mon Mar 20 17:06:23 GMT 1995
* Added code for waitsys(). This is guesswork at this stage
but appears sufficient for ISC 4.0 ksh to do something
reasonable in the simplest case.
-- Mike
Tue Mar 14 09:44:13 GMT 1995
* Initial implementation of ptrace. This allows programs
(SCO and Wyse V/386 programs) to access a process'
registers but actual tracing semantics will be difficult
to make functional.
-- Mike
* Alter emulate return to allow return of numbers > 2^^31
which don't fall in the error code space.
-- Mike
* Added signal mapping to wait() syscalls.
-- Mike
* Updated the main README with the vger mailing list details
and a few other tidy ups.
-- Mike
Thu Mar 9 10:10:53 GMT 1995
* Added a load more system calls to the SVR4 tables (these
match UnixWare at least I think). Some of these may work,
some are just marked to shut up run time warnings.
-- Mike
* Increased the size of the buffer used for parsing comment
sections in binfmt_coff.c to 8k (from 1k). There are
programs out there that need it.
-- Mike
Tue Mar 7 16:12:36 GMT 1995
* More XLI/TLI changes - mostly fixes.
-- Mike
* Added basic handling of the termiox extension used by SVR4
to give access to hardware flow control. Only RTS & CTS
or nothing is allowed because that's all Linux does. The
same comments as below apply to the status of this.
-- Mike
* Rework ioctl handling for termios. SCO uses short in a termios
structure, SVR4 uses longs. The bit shuffling used for SVR4 is
the same as for SCO - there are known to be some slight
differences but these are not believed to be critical for
most things. A large amount of guesswork went in to this.
One day I may be able to test it...
-- Mike
Mon Mar 6 12:31:05 GMT 1995
* Added a -DMODULE to iBCSemul/Makefile to make new style kernel
modules work.
-- Mike
Fri Mar 3 15:04:14 GMT 1995
* Patches from Eric. (Use Eric's [f]statvfs instead of mine).
-- Mike
Thu Mar 2 11:46:03 GMT 1995
* Fixed a silly in the handling of SO_IMASOCKET and SO_PROTOTYPE
plus added a check on the given buffer length.
-- Mike
* Fixed a silly in the sockopt.inc options mapping.
-- Mike
Wed Mar 1 14:20:06 GMT 1995
* Added SVR4 console keyboard mapping and termcap/terminfo
options to the PROD.Patches directory.
-- Mike
Mon Feb 27 13:30:17 GMT 1995
* Added simpleminded implementation of [f]statvfs().
-- Mike
* [f]statfs() now respects the length argument to allow for
older/smartass code which uses a smaller buffer size.
-- Mike
Fri Feb 17 10:33:23 GMT 1995
* More tidy up, a little more work on TLI/XTI (still nowhere
near usable), fixed the signal debugging messages so it
makes more sense.
-- Mike
Thu Feb 2 12:45:25 GMT 1995
* Changed the BSD termio ioctl handler to recognise the fact
that some provide V7 compatibility and may be invoked from
non-BSD binaries - possibly without BSD size encoding.
-- Mike
* Changes for 1.1.88. More definitions moved around in the
Linux header files :-).
-- Mike
Fri Jan 27 10:12:51 GMT 1995
* Also mapped new Linux SIGIO to iBCS SIGIO and changed Linux
SIGURG to map to SIGUSR1 as documented in SCO's TCP/IP
programmer's guide. Is SVR4 the same? How badly do we care?
-- Mike
* Had to add a new personality for Xenix binaries since they
have a different number for SIGPOLL - sigh...
-- Mike
Mon Jan 23 15:34:01 GMT 1995
* Changes to includes for 1.1.84.
-- Mike
* Change to binfmt_elf.c from kernel patch 1.1.84.
-- Mike
Tue Jan 17 17:10:25 GMT 1995
* Added tracing of argument and environment vectors passed
to exec().
-- Mike
Mon Jan 16 11:34:58 GMT 1995
* Change socksys.c for 1.1.81. There doesn't seem to be a
convenient define to test but I intended to roll out
most of the "magic" define testing for 1.2 to clean
things up.
-- Mike
* Ensure the segment registers are correctly set up when we
exec a new program - the LDT we may have been using before
no longer exists.
-- Mike
Fri Jan 6 11:32:52 GMT 1995
* Fixed a problem where the Xenix 286 emultor wasn't getting
the correct return and error codes from lcall7s.
-- Mike
* Added support for exec() in the Xenix 286 emulator.
-- Mike
* Made the spin-before-launch trap in binfmt_xout.c settable
via a trace option, "xout-block". This is used to attach
gdb to a 286 process to debug the emulator.
-- Mike
* Fixed a problem with binfmt_xout.c setting the wrong intial
brk value for impure segmented binaries. The checks for brk
collisions with mapped space were failing brk changes. Before
the brk checks were introduced I image we simply trashed
text or data...
-- Mike
Thu Jan 5 11:21:51 GMT 1995
* Added some debug to the STREAMS I_PUSH and I_POP. Also made
them succeed without actually doing anything. We may be able
to work round some instances of STREAMS usage one day...
-- Mike
Wed Jan 4 11:17:14 GMT 1995
* Change yesterday's mkdir to use getname()/putname() to
fetch the pathname from user space. I hadn't realised
these were already in ksyms.c (although how long have they
been there? This breaks compatibility with older versions
of the kernel I guess).
-- Mike
* Implement the NIOC ioctls for getting file handles since
Oracle's TCP server seems to be wanting to do this for some
reason (why???). This is a simple implementation that simply
fills in the device number of the filesystem and the inode
number of the file. This seems to agree with what SCO is
doing. I don't know what the "exported" fields are or should be.
-- Mike
Tue Jan 3 14:31:13 GMT 1995
* POSIX says that a pathname ending with a '/' means the current
directory whereas SYSV drops the trailing slash. This is only
a problem with mkdir() I think.
-- Mike
Fri Dec 16 16:25:44 GMT 1994
* Added basic support for Wyse V/386 MPX syslocal().
-- Mike
Fri Dec 9 09:14:04 GMT 1994
* Changed eaccess() again. We should always set the uid/gid
rather than fsuid/fsgid since the Linux access() call is
getting fsuid/fsgid from the current uid/gid.
-- Mike
* Don't bother trying to read x.out segments which have no
data in the executable.
-- Mike
Thu Dec 8 11:51:06 GMT 1994
* Only include < linux/segment.h> if < asm/segment.h> hasn't
defined KERNEL_DS. The header in the linux subdirectory
was obsoleted in 1.1.69.
-- Mike
Fri Dec 2 13:50:03 GMT 1994
* Force QMAGIC format when building x286emul.
-- Mike
* Patches for 1.1.69.
-- Mike
Thu Dec 1 13:50:37 GMT 1994
* Binfmt_xout.c now checks the trace flag to see if debug messages
should be produced. Trace now has an "xout" option. Trace is
now a Linux binary which uses a personality() syscall to enable
emulation so the iBCS trace syscall becomes accessible.
-- Mike
* Changed binfmt_xout.c to use 0x1020 as the entry point for
the x286emul kludge overlay. This is the expected value
for a QMAGIC binary which is the default with the newest
compiler. Really I think uselib() should return something
useful but I haven't decided what.
-- Mike
* Made the schedule() trap (so gdb can be attached before the
process starts running) in binfmt_xout.c a CONFIG option
controlled by the XOUT_TRACE setting.
-- Mike
* Moved the configuration for the optional items out of Makefile
and into CONFIG.
-- Mike
Wed Nov 30 17:08:05 GMT 1994
* Fixed a nasty bug in binfmt_coff.c where an extra page was
being allocated in the bss causing brk() checks in 1.1.64
and later to fail _in_certain_circumstances_.
-- Mike
Wed Nov 30 13:58:46 GMT 1994
* Added support for unpacking ioctls passed via the STREAMS
interface and forwarding them to the file descriptor. With
a slight change to socksys so that devices with minor 2 get
an anonymous dgram socket immediately they are opened this
allows many more network programs to work. Thanks to an old
piece of code from Chip Rosenthal for revealing how it all
worked - it isn't in the documentation :-).
-- Mike
Wed Nov 30 11:27:56 GMT 1994
* Fixed handling of brk and BSD sbrk so error returns are
handled correctly.
Mon Nov 28 10:48:25 GMT 1994
* When doing an IPC_STAT on a semaphore force the semaphore
number to be zero as the kernel code erroneously checks
it.
-- Mike
Fri Nov 25 14:26:41 GMT 1994
* Massive rework of ipc.c. The previous one was buggy as hell.
This one works with all the demo programs from the Wyse V/386
IPC documentation. Hopefully someone is going to test it with
some *real* applications!
-- Mike
Tue Nov 22 09:11:46 GMT 1994
* Change the TTYDEVTYPE ioctl to say we on a pseudo terminal
rather than a console. Anything calling this is likely to
want to try fancy stuff like mapping the console memory
and playing with I/O ports if it thinks we are on a console.
-- Mike
Tue Nov 22 09:07:04 GMT 1994
* Allow direct usage of 57600 and 115200 serial speeds from
the BSD domain with kernels 1.1.65 and later.
The mask-and-merge for iBCS<->Linux termios should be checked
as we tend to try and preserve unmappable bits where there
is no other conflict. In 99% of cases we won't see a problem
though...
-- Mike
Mon Nov 21 10:05:19 GMT 1994
* Slight change to previous patch. Confusion over which struct
size we should be using for the verify_area plus we need to
do a VERIFY_WRITE as we will rewrite the data before returning.
-- Mike
* Changes to ipc.c for reading structures from user space.
-- Roberto Bagnara < bagnara@di.unipi.it>
Thu Nov 17 15:24:23 GMT 1994
* Some of the unused KD ioctls were removed from Linux 1.1.64
(or was it 63?). Changed vtkd.c accordingly.
-- Mike
Fri Nov 11 14:15:09 GMT 1994
* Moved the x286emul overlay to /usr/lib instead of /lib. There
is no real need for this to be on the root filesystem.
-- Mike
Mon Nov 7 13:51:55 GMT 1994
* Added a version of the BSD exec.c patch for Linux 1.1.62.
-- Mike
* Extended SCO keyboard mapping for new kbd.
-- Mike
Tue Nov 1 10:57:18 GMT 1994
* Changed the personality test in the BSD kernel patch. Apparently
FreeBSD uses a machtype of 134 so it's safer to test for Linux
rather than BSD.
-- Mike
Fri Oct 28 11:25:43 GMT 1994
* General clean up of the configuration options in the Makefile
and elsewhere. It is now possible to choose which loaders are
included and whether or not BSD or Xenix 286 emulation is
required.
-- Mike
* Added the x286emul overlay library. This is still very alpha
but SCO's /bin/masm seems to do the things expected of it :-).
-- Mike
Wed Oct 5 17:00:13 BST 1994
* Fleshed out the F_CHSIZE and F_RDCHK fcntls. I still don't
know if these are ever used from the user layer.
-- Mike
Tue Oct 4 13:17:32 BST 1994
* Fixed the BSD termios mappings. This _looks_ ok from the
point of view of the NetBSD stty.
-- Mike
Fri Sep 23 11:08:31 BST 1994
* Add SCO ODT version of CorelDraw to COMPAT file.
-- Doug Ledford
Thu Sep 22 09:25:04 BST 1994
* Added the phone numbers of McGraw Hill's order desk to the
README file.
-- Mike
* chsize() was causing a segment error. The callmap entry punted
to a Linux system call but the argument count was not negative
resulting in a call to a bad function pointer.
-- Mike
* Linux doesn't have the l_sysid field in struct flock so we need
to slide the l_pid field down a word after doing a locking
fcntl.
-- Mike
Tue Sep 20 10:31:01 BST 1994
* Added a simplistic implementation of writev since BSD seems
so keen to use it as much as possible.
-- Mike
* Fixed the x.out loader (mostly). This requires a minor patch
to the kernel. Expect this to be put in to the kernel itself
sometime after 1.1.51. Segment support is still buggy and
therefore disabled. If programs assume they know what segments
exist it they are broken anyway!
-- Mike
Wed Sep 14 11:24:18 BST 1994
* Added extra fcntl code 14 (used by SVR4 for GETLCK).
-- Mike
Tue Sep 6 10:58:49 BST 1994
* Added setting of fsuid/fsgid to the loaders and changed the
eaccess() function in xnx.c to flip fsuid/fsgid rather than
uid/gid. If you were having problems with setuid/setgid iBCS
binaries this is likely to help.
-- Mike
Mon Sep 5 15:07:06 BST 1994
* Fixed the bad initialisation of howcnv in signal.c.
-- Mike
Fri Sep 2 11:01:26 BST 1994
* Added a little program to the Tools subdirectory which will
restamp old binaries with the Linux machine type rather than
zero which is used by BSD. Once this is done you can reliably
distinguish between BSD and Linux binaries (the current Linux
linker will set the correct machine type on all new binaries).
-- Mike
* Updated the BSD patch.
-- Mike
* Changed binfmt_coff to avoid passing meaningless MAP_DENYWRITE
and MAP_EXECUTABLE flags to mmap when we are not actually
mapping from a file. It would probably never be a problem...
-- Mike
Tue Aug 23 17:21:45 BST 1994
* Added my device trace stub in case anyone needs to investigate
and emulate some special device.
-- Mike
Wed Aug 17 14:06:34 BST 1994
* Added an extern definition of the formats list needed by
the 1.0.x hooks. Presumably this went AWOL at some stage?
-- Mike
Fri Aug 12 09:52:38 BST 1994
* Slight change to the socksys major allocation. Removed
redundant error message.
-- Mike
Wed Aug 10 08:57:32 BST 1994
* Added the spelling corrections from the 1.1.42 kernel patch.
-- Mike
Fri Aug 5 10:05:14 BST 1994
* Added Scott Michel's SCO multiscreen patches.
-- Mike
* More changes to loaders for latest kernel changes.
-- Mike
Wed Jul 27 10:59:14 BST 1994
* Changes for 1.1.36 vm/mprotect.
-- Mike
Tue Jul 26 14:20:27 BST 1994
* Tidied up the system call maps a little. ISC is now handled
by the same maps as SCO.
-- Mike
Wed Jul 20 12:39:55 BST 1994
* Removed the lock.patch. This is in the latest kernels.
-- Mike
* Changed the socksys/SCO utsname stuff to do the right thing
if we have the hostname set to the fqdn and the domainname
set to the NIS domain. If hostname is not an fqdn we assume
we are using the domainname == IP domain convention.
-- Mike
Wed Jun 29 13:34:34 BST 1994
* Revised the lock.patch to fix the unlock problem and allow
locks on devices. This should go to Linus (and probably has).
-- Mike
* Removed the kernel 1.1.20 patch. This isn't needed as of
1.1.22.
-- Mike
Mon Jun 27 09:26:24 BST 1994
* Can't use select() for nap() since the Linux select system
call expects to pull its arguments from the user stack.
Rewritten nap() using itimers.
-- Mike
* More fixes from Eric for 1.0 compatibility.
-- Mike
Fri Jun 24 09:37:50 BST 1994
* Added a bit about time zones to the HINTS file.
-- Mike
* First draft of BSD termios mapping. Still buggy. Needs
work to be useful.
-- Mike
* Fixed BSD getdirentries() to align dirents on long word
boundaries. 'ls' now works and 'tcsh' finds and executes
commands successfully.
-- Mike
* ibcs_exit should be listed in callmap.inc with arg count 1
not -1.
-- Mike
Thu Jun 23 09:48:43 BST 1994
* Lots more BSD-ish stuff. Commit now for release since there is
confusion over versions at the moment.
-- Mike
* List Xess MOTIF spreadsheet in COMPAT file.
-- Michael K.Johnson < johnsonm@merengue.oit.unc.edu>
* When slurping in mis-aligned COFF binaries we shouldn't be
aligning the file offset and virtual address to a page
boundary!
-- Mike
* Merged Eric's latest patches for 1.0 compatibility and Linux
ELF capability. This was done by hand. I think it's perfect...
-- Mike
Wed Jun 22 14:28:38 BST 1994
* Many sigsuspend entries in the callmap had argumetn counts
of 1 instead of Spl. This caused kernel faults.
-- Mike
* Implemented the ioctls for the pseudo nfs device which under
SCO is used to get/set the NIS domain. You need to link
/dev/nfsd to /dev/socksys.
-- Mike
* The socksys getdomainname() was doing the same write null to
kernel space instead of user space as the wysev386 version.
-- Mike
Tue Jun 21 08:54:34 BST 1994
* Use the map_bitvec() function (added as part of the BSD changes)
in signal.c. Note that there were quite a few mapping bugs in
the old code. I think I got them all but few would have been
triggered by my SCO and Wyse stuff.
-- Mike
* Snapshot BSD stuff again ready for release.
-- Mike
* binfmt_coff.c and binfmt_xout.c should be using mmap(NULL,...)
instead of zeromap_page_range as this will create the vm area
descriptor as well as mapping the pages. This is needed for
the verify_area() in 1.1.20 which has tighter checks than
previous versions.
-- Mike
* Map stack region as a GROWSDOWN vm area in binfmt_elf.c
-- Mike
Fri Jun 17 16:42:59 BST 1994
* Major and on going work to add BSD support (optional - see the
Makefile). I'm committing this now so I have a current tree
ready for release when Linus goes to 1.1.20.
-- Mike
* Wyse get{host,domain}name were using direct assignment to add
a trailing null instead of put_fs_byte(). Oops...
-- Mike
* Changes for execution domain support which will be in the main
kernel as of 1.1.20. This allows easy registration of lcall7
handlers, binary loaders etc. for different personalities.
-- Mike
Fri Jun 10 10:12:55 BST 1994
* Added patch file for kernel locking from Niklas Hallqvist
< niklas@appli.se>. This (or something very similar) should
end up in the kernel at some stage.
-- Mike
* Merged Eric's changes for 1.0 compatibilty - or rather didn't.
After playing with diff for quite a while I finally realised
we'd both done exactly the same changes :-). However Eric
has tested them...
-- Mike
* Added Brandon's iBCS trace binary from Eric's 1.0 compatibility
release.
-- Mike
Thu Jun 9 10:22:56 BST 1994
* Mapped msgsys to ibcs_msgsys in callmap.inc. It existed, we
just didn't admit it before :-).
-- Mike
Tue Jun 7 08:50:34 BST 1994
* Sorted out some more ioctl stuff and added a handler for the
STREAMS ioctl set. This is needed for I_NREAD (number of
characters readable). Some SYSV X libraries contain implicit
assumptions that the X connection is via a STREAM and use
I_NREAD in preference to BSD/socket FIONREAD.
-- Mike
* Oh, Jeez... The changes made for the official kernel patches
completely shafted the 1.0 compatibility. I've remerged the
previous code with the new code - there may still be some
things that need pulling back though. At this point I don't
have a 1.0 kernel tree around to test against.
-- Mike
* If a COFF program is not correctly aligned disable demand
paging and resort to slurping the whole lot in at start up.
-- Mike
* Added missing -I../include to the Tools Makefile.
-- Mike
Fri Jun 3 11:53:21 BST 1994
* Added my virtual system tools. A virtualised SCO 3.2.4
system is usable for real work for me...
-- Mike
* Added the synchronous ioctl set. This conflicts with the
SCO 3.2.x (x < 4) ioctl for getting the video map so it should
be dependent on the file descriptor it is applied to but since
we don't currently support either...
-- Mike
Thu Jun 2 17:02:26 BST 1994
* Added support for FIORDCHK ioctl. SCO says it's there for
"backward compatibility" but the system programs still
seem to use it (notably ksh).
-- Mike
Tue May 31 13:39:34 BST 1994
* Patches to sysfs.c for 1.0.x compatibility from Tor with
some extra clean up.
-- Mike
Fri May 27 09:15:21 BST 1994
* Ensure we set up signal() handlers as SA_ONESHOT and sigaction()
handlers as sticky - similar to patch from Remete Gabor.
-- Mike
* Added the SCO cxenix sigaction extensions. Barely tested...
-- Mike
* Added the cxenix {get,set}itimer calls discovered on SCO by
Brandon. Currently these are directly mapped to the Linux
syscalls. They are undocumented by SCO (as far as we know)
and untested by us (for now).
-- Mike
Thu May 26 11:58:18 BST 1994
* Don't include the 0.0.0.0 to localhost address mapping if we
are building for 1.1.15+. This is mapped in the kernel as of
1.1.6 and since we don't support 1.1 kernels before 15...
-- Mike
* Type of signal map vectors should be unsigned long not int.
-- Mike
* Allow tracing to be compiled in to the COFF loader and turned
on and off with the Tools/trace program.
-- Mike
* Signal maps moved out to maps/signal.inc. The only special
mapping that happens is for ISC which has a problem with
Oracle sending SIGSTOP to its backend when SIGSTOP doesn't
appear to be defined for ISC. We just map SIGSTOP to 0 so
it appears to work but does nothing.
-- Mike
* Changes for 1.1.15. This will not work with kernels between
1.1.10 and 1.1.14 inclusive - guaranteed. It should still
work with the 1.0.x series but has not been tested recently.
It probably works against 1.1.0 to 1.1.13 inclusive but that
is purely coincidence - you shouldn't be using old 1.1.x
kernels as it's a development series.
-- Mike
Tue May 24 17:27:54 1994 Eric Youngdale (eric@tantalus)
* binfmt_xout.c: Use linux_binfmt struct, register_binfmt,
unregister_binfmt as in pl14.
* binfmt_elf.c, binfmt_xout.c: Likewise.
* signals.c: Make signals[] and lsignals[] global variables.
* ibcs/include/ibcs.h: Add prototypes for signals[] and lsignals[].
Tue May 24 10:37:01 BST 1994
* Added map entries for the ISC personality to all the maps
files. Must be more careful adding personalities.
-- Mike
* Added Oracle to the COMPAT file.
-- Mike
* Remember the problem with interrupting an Informix 4GL program
causing it to go psycho because of I/O errors from the tty?
Well, this doesn't happen with the new tty drivers in 1.1.13.
I never found why it happened...
-- Mike
* Noted that the 1.1.11 kernel patches are still ok with 1.1.13.
-- Mike
Mon May 23 08:50:21 BST 1994
* Mapped ISC sysconf() to the existing Xenix sysconf(). This
looks right but isn't checked at all.
-- Mike
* Added ISC TCSETPGRP and TCGETPGRP ioctl traps.
-- Mike
Thu May 19 09:26:34 BST 1994
* Added a bug hunting section to the README.
-- Mike
* Always access the socket layer by picking up the file operations
from an open socket descriptor. This removes the need for
kernel socket functions to be global and should be friendlier
towards a loadable socket layer one day.
-- Mike
Mon May 16 10:20:38 BST 1994
* Always access system calls via the system call table regardless
of whether we are using a loadable module or linking directly
to the kernel. This allows other things to be loadable too.
-- Mike
Wed May 11 13:52:12 BST 1994
* Added a tip on how to fix X font problems to the HINTS file.
Other "soft" changes welcome. Does anyone read the ChangeLog?
-- Mike
* Introduced the PROD.Patches directory and put the WP install
fixes in there. Documented in COMPAT and README.
-- Mike
* Added some hints on incompatible shell behaviour.
-- Mike
Mon May 9 11:07:52 BST 1994
* Updated the 1.1 patch file for 1.1.11.
-- Mike
* Additions for Interactive 4.0
-- Karl Kiniger (ki@kretz.co.at)
Fri May 6 12:03:00 BST 1994
* Merged old sysfs.c with the new sysfs.c. The code will now
work against any kernel - 1.0, 1.1, 1.1.9, 1.1.10...
-- Mike
Thu May 5 10:39:52 BST 1994
* Reworked for compatibility with 1.1.10. Kernel patches
are *not* updated yet. We expect the kernel changes to go
in to the official distribution any time now...
-- Mike
Tue May 3 12:03:31 BST 1994
* Joe/Brad's IPC additions.
Fri Apr 29 10:06:10 BST 1994
* Updated the README to explain the difference between sysfs.c
and sysfs.c.old
-- Mike
Wed Apr 27 11:38:52 BST 1994
* Added mapping of chsize() to ftruncate(). Implemented nap()
using select().
-- Mike
* Further fix to termios mapping for iexten and tostop.
-- Mike
* Updated the 1.1.? patch. New ksyms.c with fewer symbols plus
removed all the socket patches. Sockfunc.h is no longer
required. The 1.0 patch isn't updated but the extra cruft
that's in there now shouldn't be any problem.
-- Mike
Tue Apr 26 11:49:07 BST 1994
* Removed references to linux/sockfunc.h. We seem to have run
out of internal socket functions to put in it finally.
-- Mike
* Removed use of socki_lookup(). This just wraps some checks
around inode->i_socket. We assume the socket layer is stable
by now...
-- Mike
* Access [gs]etsockopt via the socketcall interface.
-- Mike
* If we have to use our own CFLAGS look in the include directory
above in case we have been dropped in to the kernel.
-- Eric
* Grab socket file operations when we create a socket rather
than linking against them directly. Similar to Eric's
changes but different...
-- Mike
Fri Apr 22 11:10:18 BST 1994
* The 'x' class of ioctls are back to being termios rather
than termio. The problem was that the field size in iBCS
termios and Linux termios is different.
-- Mike
* Added iBCS <-> Linux termios mapping. This is untested and
probably imperfect at this stage but nothing crashes with
this code...
-- Mike
* The iBCS time() syscall doesn't take an argument, the save,
if any, is handled in the interface library.
-- Mike
* Updated the 1.1 kernel patch to be against 1.1.8. It won't
work with anything less than 1.1.8 but then if you are
playing with 1.1 you should be playing with the latest...
This involves a change in the way sysfs() works. If you
are using 1.0 and have applications that call sysfs()
(practically none do) then you need to build with sysfs.c.old.
-- Mike
* The Linux kernel 1.1.8 replaces the static file_systems
table with a linked list ready for loadable file systems.
Naturally, I was ready for this... :-(
-- Mike
Thu Apr 21 10:34:34 BST 1994
* sysfs.c should be including linux/string.h to get the
inline string functions rather than needing library
functions.
-- Mike
* Added code to map between Linux termio structs and SCO/iBCS
termio structs. There are slight differences. Mapping needs
to be done for termios structs too. Anything that uses termios
at this stage is likely to ge a nasty shock!
-- Mike
Tue Apr 19 22:56:55 1994 Eric Youngdale (eric@esp22)
* ibcs.h: Put declaration of sys_call_table outside of ifdef.
(So can be compiled into kernel instead as a module).
Tue Apr 19 10:21:17 BST 1994
* It looks as though the 'x' class of ioctls should be termio
ioctls rather than termios. At least this is the case as far
as SCO 3.2.4 stty appears to be concerned.
-- Mike
* Avoid copying the entire lock structure backwards and forwards
just to increment one field in open.c. There could be a problem
here - SCO has a sysid field *before* the pid field but only
if _XOPEN_SOURCE or _POSIX_SOURCE is defined at compile time.
There appears to be no obvious way to know what is being used???
-- Mike
Mon Apr 18 08:49:37 BST 1994
* There appear to odd little niceties involved with SYSV which
depend on system configuration and the way users do things.
Added a HINTS file with known problems/workarounds.
-- Mike
* Changed some annoying KERN_ERRs to KERN_DEBUGs in signal.c
-- Mike
* Watch out for (mis)use of INADDR_ANY instead of localhost
(primarily by syslog() code?) and replace it with the
localhost address. We should perhaps do this for sendto()
as well? (Eric spotted this one on CorelDraw but it's a
problem with the standard libsocket.c)
-- Mike
* Processes should be allowed to reduce their file size
limit but only increase it if they have root privileges.
-- Mike
* Fixed the bug in [f]statfs where the first two arguments
to memcpt_tofs() were exchanged (spotted by Eric).
-- Mike
* SCO seems to like utsys (v7_utsname) to return the same
thing for sysname and nodename fields just like the SCO
extended utsname structure has. The SVR4 (abi_utsname)
return is unknown at this time.
-- Mike
* Removed comments on IPC from README. It *is* fixed?
-- Mike
* Fix IPC which was broken by syscall changes. Also fix
structure mappings.
-- Joseph L. Portman III < baron@hebron.connected.com>
Thu Apr 14 11:27:24 BST 1994
* At some stage SCO managed to build some of their binaries
with the copyright comment string in quotes so we have a
new recognition string in the COFF loader. (Seen in uname
on a 3.2.2 system).
-- Mike
* If we have tracing compiled in then only give unsupported
syscall messages if we are tracing the API or the syscall
in question. This allows us to quieten unsupported but
unimportant syscalls.
-- Mike
* Comment on the IPC limitations in the README file.
-- Mike
* Added implementation of xnx_pathconf(). Actually it doesn't
look as if we really need it. The Microsoft C compiler seems
to be misusing it anyway and doesn't even care that it gets
an error.
-- Mike
Wed Apr 13 09:14:50 BST 1994
* Added handling of TIOC[GS]PGRP.
-- Mike
* Added implementation of xnx_eaccess(). This is currently
simpleminded because Linux access() is. My eaccess() may
even be wrong.
-- Mike
* When tracing signal delivery we shouldn't be clearing the
signal flag after reporting it or the signal is never actually
delivered. I copied the assembler from the kernel and forgot
to deleted an opcode...
-- Mike
* Signal 0 should have been identity mapped so kill 0 works.
-- Brandon S. Allbery (kf8nh@kf8nh.ampr.org) (bsa@kf8nh.wariat.org)
Tue Apr 12 14:30:25 BST 1994
* Corrected file size passed to/from setrlimit/getrlimit
-- Graham Adams (gadams@ddrive.demon.co.uk)
Tue Apr 12 11:16:45 BST 1994
* Added support for an obscure SCO extension that is used
to get SCO's extended utsname information.
-- Mike
* Changed ipc.c to always go via the ipc syscall rather than
direct to internal functions. This should survive if ipc
isn't in the kernel. It should even do sensible things if
the ipc module is loaded/unloaded on us.
-- Mike
* Initial changes to access system calls via sys_call_table
-- Mike
05 April 1994
* Eric's pre-release fixes.
Wed Mar 30 22:35:28 1994 Eric Youngdale (eric@esp22)
* ioctl.c: Change 'F' to 'f' for SVr4 FIONREAD ioctl.
* Makefile: Add svr4.c.
* svr4.c: New file (sort of - it got lost in shuffle before).
* include/ibcs/ibcs.h: Include prototypes for abi_uname.
* maps/callmap.inc: Insert abi_uname in syscall number 135.
Add sys_rename in slot 134 (emacs v18 requires this).
Tue Mar 29 23:32:35 1994 Eric Youngdale (eric@esp22)
* Makefile: Fix so that we do not need uname. Use symbol from
.config instead.
* README: Update a bit.
28 March 1994
* Preparation for release:
Tidy up documentation and create CREDITS file from the old
ToDo list.
-- Mike
27 March 1994
* Preparation for release:
Move headers into a subdirectory.
Move maps into a subdirectory.
-- Mike
25 March 1994
* Changed the COFF loader so that if the filesystem doesn't
support mmap we read in the whole lot initially and let
it page to swap if necessary. This is already in the x.out
loader, it should go in the ELF loader too at some point.
-- Mike
24 March 1994
* Added a loader for x.out i386 small model binaries - i.e 386
Xenix programs. <=286, non-small model binaries are not
supported and not likely to be in the near future.
-- Mike
Wed Mar 23 23:12:54 1994 Eric Youngdale (eric@esp22)
* Add ioctl for 0x4004667f (FIONREAD) (used by SVr4).
* map.h (map_segment.map): Make unsigned.
* hrtsys.c: New file implementing parts of the hrtsys syscall.
02 March 1994
* Add socket value mappings. This meant a general move round
to tidy things up and group map functions/tables.
There is a new kernel patch in the Patches directory called
net.patch which gives us access to the sock_*sockopts
functions directly.
-- Mike
28 February 1994
* Implementation of poll().
-- Eric
25 February 1994
* Pedantic change to call maps so that IBCS_function contains
a void * instead of a function pointer - we cast it as
necessary later in emulate.c. The warnings were annoying me.
* Moved struct abi_sigaction from signal.c to abi4.h so it is
available for prototype declarations. Changed prototype for
abi_sigsuspend to correspond to implementation in signal.c.
-- Mike
* Reversed out Eric's earlier signal patches and added new ones.
-- Mike
* Updated trace code and trace control program to be useful.
Control of tracing individual functions is still not there
yet - perhaps another day.
Default trace mode is now none (i.e. only functions with
the trace flag set are traced). Use the trace program to
change the trace level.
-- Mike
* File modes (open/fcntl flags) are different between Linux and
iBCS so we need to map between them. Open also requires this
so fcntl.c is now merged with open.c. Failure to set and reset
non-blocking mode was what was breaking Unipox.
-- Mike
* Signal handling function changes to map to and from the Linux
signal set and sigaction flags correctly.
-- Eric
24 February 1994
* Added code to the emulate() function to let us know when we
are about to process a signal on exit from the syscall.
-- Mike
* Implemented proctl() as a no-op. It's not really relevent
under Linux.
-- Mike
* Added argument count and type for eaccess()
-- Mike
* Have emulate.c return -ENOSYS for unimplemented system calls
rather than zero.
-- Mike
* Added Eric's patches to waitpid.
* Created the ChangeLog!