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* Declare pointers to signal handling functions in full instead of asbde1996-10-251-3/+2
| | | | sig_t's so that <sys/signal.h> isn't a prerequisite.
* Prepare kernel to take advantage of "branded" ELF binaries.sos1996-10-161-5/+6
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* Updated #includes to 4.4lite style.bde1996-10-151-2/+3
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* Removed nested include of <sys/proc.h> from <vm/vm_object.h> and fixedbde1996-10-151-1/+2
| | | | | | | | | | the one place that depended on it. wakeup() is now prototyped in <sys/systm.h> so that it is normally visible. Added nested include of <sys/queue.h> in <vm/vm_object.h>. The queue macros are a more fundamental prerequisite for <vm/vm_object.h> than the wakeup prototype and previously happened to be included by namespace pollution from <sys/proc.h> or elsewhere.
* Clean-up the new VM map procfs code, and also add support for executabledyson1996-06-181-1/+3
| | | | | format file "etype". It contains a description of the binary type for a process.
* Clean up -Wunused warnings.gpalmer1996-06-121-2/+1
| | | | Reviewed by: bde
* Include <sys/buf.h> so that this does't blow up with B_WRITE undefined.jkh1996-05-011-1/+2
| | | | | 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.
* Update the linux_sendsig() handler to the new type of the 4thpeter1996-03-171-4/+4
| | | | | arg, now unsigned long. This was (harmlessly on i386) conflicting with the recent 4.4Lite2 changes.
* Move the elf linux_interp structure from the lkm stub to here so that itpeter1996-03-101-1/+18
| | | | | can be referenced when the linux emulator is statically compiled into the kernel.
* Implement rudumentry support for the linux TIOC[SG]ETSERIAL ioctl's.peter1996-03-101-1/+35
| | | | | | | | 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>
* First attempt at FreeBSD & Linux ELF support.sos1996-03-102-65/+115
| | | | | | | | | | | | | | | | | 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 :)
* Oops.. I was wrong about the change to sigsuspend. The library interface ispeter1996-03-041-3/+4
| | | | | | different to the syscall under Linux, back this out. Use correct arg type for linux_utime()
* Add support for the old-style Linux termio (not termios) TCGETA etc.peter1996-03-031-2/+4
| | | | | | | | | 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>
* Minor touch-up... make two functions static, and add missing $Id$peter1996-03-021-0/+1
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* Mega-commit for Linux emulator update.. This has been stress tested underpeter1996-03-024-67/+480
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* A new syscalls table for the Linux emulator. This is processed bypeter1996-03-022-0/+221
| | | | makesyscalls.sh to generate the rest of the tables.
* Fix a bunch of spelling errors in the comment fields ofmpp1996-01-301-2/+2
| | | | a bunch of system include files.
* My first shot at get sound to work on the emulator.sos1995-12-291-1/+19
| | | | | Inspired by the work Amancio Hasty has done, but implemented somewhat differently.
* Completed function declarations and added prototypes.bde1995-11-222-7/+13
| | | | | | Removed some unnecessary #includes. Fixed warnings about nested externs.
* First incarnation of our Linux emulator or rather compatibility code.sos1995-06-252-0/+722
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.
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