Commit Graph

16 Commits

Author SHA1 Message Date
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
Jordan K. Hubbard
5e26fb6fdf Include <sys/buf.h> so that this does't blow up with B_WRITE undefined.
I fully updated my src tree and did a `make includes' in /usr/src before
trying this fix, so I can only presume that Bruce missed something.
1996-05-01 06:31:18 +00:00
Peter Wemm
b36546f69a Update the linux_sendsig() handler to the new type of the 4th
arg, now unsigned long.  This was (harmlessly on i386) conflicting
with the recent 4.4Lite2 changes.
1996-03-17 14:31:58 +00:00
Peter Wemm
5cf588eb8b Move the elf linux_interp structure from the lkm stub to here so that it
can be referenced when the linux emulator is statically compiled into the
kernel.
1996-03-10 22:42:16 +00:00
Peter Wemm
9c5ee42327 Implement rudumentry support for the linux TIOC[SG]ETSERIAL ioctl's.
To complete this, some extra state has to be kept somewhere so that the
B38400 flag in Linux can be correctly translated to/from either 38400,
57600 or 115200.

Submitted by: Robert Sanders <rsanders@mindspring.com>
1996-03-10 22:30:53 +00:00
Søren Schmidt
e1743d02cd First attempt at FreeBSD & Linux ELF support.
Compile and link a new kernel, that will give native ELF support, and
provide the hooks for other ELF interpreters as well.

To make native ELF binaries use John Polstras elf-kit-1.0.1..
For the time being also use his ld-elf.so.1 and put it in
/usr/libexec.

The Linux emulator has been enhanced to also run ELF binaries, it
is however in its very first incarnation.
Just get some Linux ELF libs (Slackware-3.0) and put them in the
prober place (/compat/linux/...).
I've ben able to run all the Slackware-3.0 binaries I've tried
so far.
(No it won't run quake yet :)
1996-03-10 08:42:54 +00:00
Peter Wemm
4613eba388 Oops.. I was wrong about the change to sigsuspend. The library interface is
different to the syscall under Linux, back this out.

Use correct arg type for linux_utime()
1996-03-04 20:58:47 +00:00
Peter Wemm
4f735d8edb Add support for the old-style Linux termio (not termios) TCGETA etc.
Also, LINUX_POSIX_VDISABLE is \0, FreeBSD's is 0xff. Convert between them.

This enables some more programs to run, including the Livingston Portmaster
utilities (PMtools).

Submitted by: Robert Sanders <rsanders@mindspring.com>
1996-03-03 19:07:50 +00:00
Peter Wemm
a1ebcbfb76 Minor touch-up... make two functions static, and add missing $Id$ 1996-03-02 21:00:11 +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
Peter Wemm
9a074e93b5 A new syscalls table for the Linux emulator. This is processed by
makesyscalls.sh to generate the rest of the tables.
1996-03-02 19:04:16 +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
Søren Schmidt
bb5889bdb5 My first shot at get sound to work on the emulator.
Inspired by the work Amancio Hasty has done, but implemented
somewhat differently.
1995-12-29 22:12:14 +00:00
Bruce Evans
1f3dad5a8d Completed function declarations and added prototypes.
Removed some unnecessary #includes.

Fixed warnings about nested externs.
1995-11-22 07:43:53 +00:00
Søren Schmidt
c21dee177f First incarnation of our Linux emulator or rather compatibility code.
This first shot only incorporaties so much functionality that DOOM
can run (the X version), signal handling is VERY weak, so is many
other things. But it meets my milestone number one (you guessed it
- running DOOM).

Uses /compat/linux as prefix for loading shared libs, so it won't
conflict with our own libs.

Kernel must be compiled with "options COMPAT_LINUX" for this to work.
1995-06-25 17:32:43 +00:00