Commit Graph

261 Commits

Author SHA1 Message Date
Bruce Evans
f58609f0c6 Fixed some more easy cases of const poisoning in the kernel. Cosmetic. 1996-09-03 22:19:16 +00:00
John Dyson
6ead3edd9c Clean-up the new VM map procfs code, and also add support for executable
format file "etype".  It contains a description of the binary type for
a process.
1996-06-18 05:16:00 +00:00
Gary Palmer
c23670e294 Clean up -Wunused warnings.
Reviewed by:		bde
1996-06-12 05:11:41 +00:00
Nate Williams
22ceda90c7 Fixed GET/SETIPDOMAIN ioctl on /dev/socksys, which is used by various
other socket functions (gethostname() for one).

Reviewed by:	sef
1996-06-12 01:10:26 +00:00
Nate Williams
32d18afb14 Change the 'sysi86()' function not implemented' printf to be called only
when compiled with -DDIAGNOSTIC.  Almost all significant SCO binaries
I've run call an unsupported function and run correctly.  Given that
they aren't needed, the messages only clutter up the logfiles and
console.
1996-06-08 17:12:45 +00:00
Nate Williams
d52ead1462 When uname() returns the system name, try to use the unqualified domain
name (ie; strip off the domain).  Given a hostname 'fooey.bar.com', the
previous code returned a system name of 'fooey.ba', instead of the more
correct 'fooey'.  SCO uses 'uname' for many things, including some of
it's socket code so this patch is necessary for running certain legacy
SCO apps. :)

A variant of this code has been running on my box for 2 months now.
1996-06-08 06:01:29 +00:00
Bruce Evans
a794e791c8 Removed unnecessary #includes from <sys/imgact.h> so that it is
self-sufficient and added explicit #includes where required.
1996-05-01 02:43:13 +00:00
Steven Wallace
2983151216 Implement ioctl's IBCS2_TCFLSH and IBCS2_TCXONC. Improve termios conversion.
Implement xenix_eaccess() system call.

Obtained from: NetBSD
1996-03-28 19:53:21 +00:00
Steven Wallace
a5e1a0f2e9 The recently introduced sv_sendsig entry of the sysentvec structure
is incorrectly set to 0, for the purpose of "ignoring" the signal.
This does not ignore the signal, but rather, executes the function
at location 0 in kernel mode, which shortly thereafter causes a panic.

The sv_sensig entry for ibcs2 emulation should be set to the system's
normal sendsig routine.
1996-03-27 18:39:40 +00:00
Peter Wemm
71d7d1b17a Remove references to MAP_FILE.. That is now "default" and is only
a "#define MAP_FILE 0" that is still there for net-2 source compatability.
1996-03-12 06:20:19 +00:00
Peter Wemm
31432c9ff1 The same data segment length rounding problem that was in the elf
loader is also present in the coff loader.  It was possible to get one
more page allocated than needed, which would cause brk()/malloc()/etc
to fail with ENOMEM when it tried to re-allocate the space.

Also, change a bcopy() from kernel to user space to a copyout().
1996-03-12 06:13:08 +00:00
Peter Wemm
b766761288 Fix a (mostly harmless) bogon when calculating the start of the stack gap. 1996-03-10 22:24:54 +00:00
Peter Wemm
d66a506616 Mega-commit for Linux emulator update.. This has been stress tested under
netscape-2.0 for Linux running all the Java stuff.  The scrollbars are now
working, at least on my machine. (whew! :-)

I'm uncomfortable with the size of this commit, but it's too
inter-dependant to easily seperate out.

The main changes:

COMPAT_LINUX is *GONE*.  Most of the code has been moved out of the i386
machine dependent section into the linux emulator itself.  The int 0x80
syscall code was almost identical to the lcall 7,0 code and a minor tweak
allows them to both be used with the same C code.  All kernels can now
just modload the lkm and it'll DTRT without having to rebuild the kernel
first.  Like IBCS2, you can statically compile it in with "options LINUX".

A pile of new syscalls implemented, including getdents(), llseek(),
readv(), writev(), msync(), personality().  The Linux-ELF libraries want
to use some of these.

linux_select() now obeys Linux semantics, ie: returns the time remaining
of the timeout value rather than leaving it the original value.

Quite a few bugs removed, including incorrect arguments being used in
syscalls..  eg:  mixups between passing the sigset as an int, vs passing
it as a pointer and doing a copyin(), missing return values, unhandled
cases, SIOC* ioctls, etc.

The build for the code has changed.  i386/conf/files now knows how
to build linux_genassym and generate linux_assym.h on the fly.

Supporting changes elsewhere in the kernel:

The user-mode signal trampoline has moved from the U area to immediately
below the top of the stack (below PS_STRINGS).  This allows the different
binary emulations to have their own signal trampoline code (which gets rid
of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so
that the emulator can provide the exact "struct sigcontext *" argument to
the program's signal handlers.

The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which
have the same values as the re-used SA_DISABLE and SA_ONSTACK which are
intended for sigaction only.  This enables the support of a SA_RESETHAND
flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal
semantics where the signal handler is reset when it's triggered.

makesyscalls.sh no longer appends the struct sysentvec on the end of the
generated init_sysent.c code.  It's a lot saner to have it in a seperate
file rather than trying to update the structure inside the awk script. :-)

At exec time, the dozen bytes or so of signal trampoline code are copied
to the top of the user's stack, rather than obtaining the trampoline code
the old way by getting a clone of the parent's user area.  This allows
Linux and native binaries to freely exec each other without getting
trampolines mixed up.
1996-03-02 19:38:20 +00:00
Mike Pritchard
6c5e9bbdf5 Fix a bunch of spelling errors in the comment fields of
a bunch of system include files.
1996-01-30 23:02:38 +00:00
John Dyson
5327442589 Fixed vm_map_find for new vm changes. 1996-01-19 23:00:38 +00:00
Peter Wemm
14537e784b Reran makesyscalls.sh.. 1996-01-08 05:27:29 +00:00
Peter Wemm
801942bdd4 Oops. forgot to remove #include "opt_sysvipc.h" 1996-01-08 05:24:09 +00:00
Peter Wemm
1529bb2d55 reran makesyscalls
Always call the SYSV ipc functions, stubs will take their place if
necessary.
1996-01-08 04:34:54 +00:00
Peter Wemm
e7ae3bf08d Remove the #ifdef SYSVSHM etc. Always call the functions, some stubs
are about to go in.  This is to fix the problem with the ibcs2 and linux
lkm's not being able to call the sysv ipc functions unless the build is
modified.
1996-01-08 04:13:25 +00:00
Garrett Wollman
50c73f3620 Convert SYSV IPC to new-style options. (I hope I got everything...)
The LKMs will need an extra file, to come later.
1996-01-04 20:29:06 +00:00
Peter Wemm
6065a0be11 This commit was generated by cvs2svn to compensate for changes in r13122,
which included commits to RCS files with non-trunk default branches.
1995-12-30 19:02:48 +00:00
Peter Wemm
a5b996a7ec recording cvs-1.6 file death 1995-12-30 19:02:48 +00:00
Peter Wemm
c0072256cd Update ibcs2 to use the new ps_strings / stack gap arrangements.. 1995-12-09 04:33:27 +00:00
David Greenman
efeaf95a41 Untangled the vm.h include file spaghetti. 1995-12-07 12:48:31 +00:00
Bruce Evans
86a1c05db0 Removed unnecessary #includes of <sys/user.h>. Some of these were just
to get the definitions of TRUE and FALSE which happen to be defined in
a deeply nested include.

Added nearby #includes of <sys/conf.h> where appropriate.
1995-12-06 23:44:23 +00:00
Poul-Henning Kamp
52813bb5e5 Change call to kern_sysctl to userland_sysctl. Not tested. 1995-11-20 12:10:59 +00:00
Bruce Evans
fa59f03f50 Added bogus casts to avoid compiler warnings. 1995-11-13 09:03:30 +00:00
Bruce Evans
ec9e4d05a0 Fixed parentheses in macros. 1995-11-13 08:58:06 +00:00
Bruce Evans
99bb927c4e Added (null for the i386) conversions from ibcs2's bogus fcntl args
struct to the standard bogus fcntl args struct.
1995-11-12 04:42:58 +00:00
David Greenman
c52007c2cc All:
Changed vnodep -> vp for consistency with the rest of the kernel, and
changed iparams -> imgp for brevity.

kern_exec.c:
   Explicitly initialized some additional parts of the image_params struct
to avoid bzeroing it. Rewrote the set-id code to reduce the number of
logical tests. The rewrite exposed a mostly benign bug in the algorithm:
traced set-id images would get ktracing disabled even if the set-id didn't
happen for other reasons.
1995-11-06 12:52:37 +00:00
Poul-Henning Kamp
3a34a5c3b8 Sorry, the last commit screwed up for me, this is the right one (I hope!)
Please refer to the previous commit message about sysctl variables.
1995-10-28 13:07:28 +00:00
Steven Wallace
a5d49c1801 Add code to properly translate signal returned in status argument of wait4()
call for STOPPED and SIGNALED status (exit status identical).
1995-10-23 19:46:51 +00:00
Steven Wallace
a8a9bde831 In bsd_to_ibcs2_sigaction(), flag for ibcs2 system should be
IBCS2_SA_NOCLDSTOP and not SA_NOCLDSTOP.

Submitted by:	 bde
1995-10-21 20:33:43 +00:00
Steven Wallace
77d5b24bcb sigset() should have sa_flags cleared to sig is maked before calling
handler (remove SA_NODEFER).

On the other hand, signal() case should set sa_flags to SA_NODEFER as
in previous change.

In addition, added #ifdef'd code for signal() to or in SA_RESETHAND
flag for when that compatability is implemented.
1995-10-21 05:01:57 +00:00
Steven Wallace
3b493fe3e8 Use sa_flag option SA_NODEFER in sigsys() emulation because SVR3
does not automatically mask signal upon delivery.
1995-10-19 19:20:17 +00:00
Steven Wallace
473fbdbe96 Add a hack to emulator to emulat spx device for local X connections.
This is truly a hack.  The idea is taken from the Linux ibcs2 emulator.

To use this feature, you must use the option,
	options		SPX_HACK
in your config.

Also, in /compat/ibcs2/dev, you must do:

lrwxr-xr-x  1 root  wheel         9 Oct 15 22:20 X0R@ -> /dev/null
lrwxr-xr-x  1 root  wheel         7 Oct 15 22:20 nfsd@ -> socksys
lrwxr-xr-x  1 root  wheel         9 Oct 15 22:20 socksys@ -> /dev/null
crw-rw-rw-  1 root  wheel   41,   1 Oct 15 22:14 spx

Do NOT use old socksys driver as that has been removed.
This hack needs /compat/ibcs2/dev/spx to be any device that does NOT
exist/configured (so the now non-existant spx major/minor works fine).
When an open() is called, the error ENXIO is checked and then the
path is checked.  If spx open detected, then a unix socket is opened
to the hardcoded path "/tmp/.X11-unix/X0".

As the Linux hacker author mentioned, the real way would be to detect
the getmsg/putmsg through /dev/X0R and /dev/spx.  Until this true
solution is implemented (if ever), I think this hack is important
enough to be put into the tree, even though I don't like it dirtying
up my clean code (which is what #ifdef SPX_HACK is for).
1995-10-16 05:52:55 +00:00
Steven Wallace
30f4c3423d Do a better fake for uname information returned in utssys() call.
Currently, the emulator defaults to returning "FreeBSD" as the system
name, release "3.2", and version "2.0".  Some programs want to make
sure they are on a SYSV 3.2 system and check for 3.X release number.

Use the following defines to override the defaults:
	IBCS2_UNAME_SYSNAME
	IBCS2_UNAME_RELEASE
	IBCS2_UNAME_VERSION
(should be string)
for system name, release, and version, respectively.  This allows
someone to compile the emulator into the kernel so it can pretend
to be a specific system if needed.
1995-10-16 05:32:20 +00:00
Steven Wallace
4b0855b73b Fix the getdirentries of ibcs2 to handle uneven DIRBLKSIZ offsets.
Same bug as was in linux.

Also, fix problem where an entry would be skipped next call if not enough room
in buffer current call.
1995-10-10 23:12:53 +00:00
Steven Wallace
1448ea7e81 Change alternate space base name from /emul/ibcs2 to /compat/ibcs2,
in line with linux alt space of /compat/linux.
This was pointed out by Stefan Esser.

In cheching alt space for libraries in imgact_coff.c, use const
ibcs2_emul_path instead of its own local string.  Also do a proper
malloc of temp name according to MAXPATHLEN.
1995-10-10 17:33:19 +00:00
Steven Wallace
ff53bd6898 Remove redundant getmsg and putmesg function declarations and #include directive 1995-10-10 08:31:12 +00:00
Steven Wallace
9e03db613c 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
Steven Wallace
3e174373d3 This commit was generated by cvs2svn to compensate for changes in r11394,
which included commits to RCS files with non-trunk default branches.
1995-10-10 07:27:24 +00:00
Steven Wallace
234cc877a2 Import of original NetBSD's ibcs2 emulator sources by Scott Bartram,
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.
1995-10-10 07:27:24 +00:00
Sean Eric Fagan
e6df7bbb57 Unlock the vnode after checking permissions; this is necessary to prevent
a panic whenever an iBCS2 file is exec'd.

Obtained from: FreeBSD
1995-09-13 02:12:51 +00:00
Julian Elischer
2b14f991e6 Reviewed by: julian with quick glances by bruce and others
Submitted by:	terry (terry lambert)
This is  a composite of 3 patch sets submitted by terry.
they are:
New low-level init code that supports loadbal modules better
some cleanups in the namei code to help terry in 16-bit character support
some changes to the mount-root code to make it a little more
modular..

NOTE: mounting root off cdrom or NFS MIGHT be broken as I haven't been able
to test those cases..

certainly mounting root of disk still works just fine..
mfs should work but is untested. (tomorrows task)

The low level init stuff includes a total rewrite of init_main.c
to make it possible for new modules to have an init phase by simply
adding an entry to a TEXT_SET (or is it DATA_SET) list. thus a new module can
be added to the kernel without editing any other files other than the
'files' file.
1995-08-28 09:19:25 +00:00
David Greenman
c0e5de7d88 Moved setting of VTEXT flag into the appropriate image activators. This
fixes a bug where linux binaries would get the flag set inappropriately.
1995-08-24 10:32:37 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
Andrey A. Chernov
e2c89acf82 Fix CHOWN_RESTRICTED and NO_TRUNC to return correct values per POSIX 1995-05-02 17:14:38 +00:00
Andrey A. Chernov
c5e15878bd Back out incorrect jkh's fix and apply correct one
(POSIX_SAVED_IDS,POSIX_JOB_CONTROL)
1995-05-02 13:14:59 +00:00
Jordan K. Hubbard
72574b4219 The handling of _SC_SAVED_IDS was wrong; _POSIX_SAVED_IDS has no value
to assign this way!
1995-05-02 12:32:30 +00:00
Andrey A. Chernov
2fae339c22 Fix handling of POSIX_JOB_CONTROL and POSIX_SAVED_IDS,
pointed out by Bruce.
1995-04-30 11:30:12 +00:00
Joerg Wunsch
fa74aea62d Some long-waiting fixes for the COFF module. They silence compiler
warnings and are cosmetic only.  Poul once requested them, but neither
Sean nor Søren commented on them, so i commit it now before it's
getting lost some day.
1995-04-08 15:52:30 +00:00
Nate Williams
19b72402c7 emoved redundant definition of imcs2_close() since it already exists in
ibcs2_file.c

Reviewed by:	Sean and S'oren
1995-03-03 15:44:44 +00:00
David Greenman
91ee94544a Use of vm_allocate and vm_deallocate has been deprecated. 1995-02-20 23:52:39 +00:00
Bruce Evans
125bd0c85c Don't depend on namespace pollution in <machine/limits.h> for the
definition of CLK_TCK.  Use _BSD_CLK_TCK_ instead of CLK_TCK so that
we don't have to include the user header <time.h>.
1995-02-03 21:31:35 +00:00
Søren Schmidt
45d04cf11f Fix bug around VOP_READDIR, now takes 6 parameters not 4.
The MAXBSIZE has changed, so use DEFAULT_PAGE_SIZE instead.
1994-12-14 22:03:48 +00:00
Søren Schmidt
6897ce2e56 First shot README file for iBCS support
Reviewed by:	sef@kithrup.com
1994-10-23 19:20:57 +00:00
Søren Schmidt
a2c74e0ab5 Fixed some video returns. 1994-10-23 19:19:42 +00:00
Søren Schmidt
e33700d2b0 Got a little closer with socksys emulation. 1994-10-17 22:13:10 +00:00
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
Søren Schmidt
6e542db138 Main iBCS2 include file. First part of iBCS2 emulator. 1994-10-13 21:08:11 +00:00