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martin 3007f1403a Back out the following revisions on behalf of core: 
sys/sys/lwp.h: revision 1.228
	sys/sys/pipe.h: revision 1.40
	sys/kern/uipc_socket.c: revision 1.306
	sys/kern/kern_sleepq.c: revision 1.84
	sys/rump/librump/rumpkern/locks_up.c: revision 1.13
	sys/kern/sys_pipe.c: revision 1.165
	usr.bin/fstat/fstat.c: revision 1.119
	sys/rump/librump/rumpkern/locks.c: revision 1.87
	sys/ddb/db_xxx.c: revision 1.78
	sys/ddb/db_command.c: revision 1.187
	sys/sys/condvar.h: revision 1.18
	sys/ddb/db_interface.h: revision 1.42
	sys/sys/socketvar.h: revision 1.166
	sys/kern/uipc_syscalls.c: revision 1.209
	sys/kern/kern_condvar.c: revision 1.60

  Add cv_fdrestart() [...]
  Use cv_fdrestart() to implement fo_restart.
  Simplify/streamline pipes a little bit [...]

This changes have caused regressions and need to be debugged.
The cv_fdrestart() addition needs more discussion.
 		2023-11-02 10:31:55 +00:00
..
dev We no longer need the deprecated copyback functionality now that 2023-09-25 21:59:38 +00:00
fs Drop -O[01] hacks for vax; no longer necessary for patched GCC 10 2023-10-07 12:15:49 +00:00
include PR kern/57626: instead of an (arbitrary) FAKE_PAGE_SHIFT (and always 2023-09-24 09:33:26 +00:00
kern rump: Use l_sched.info, not l_private, for cv waits. 2023-07-16 23:05:53 +00:00
librump Back out the following revisions on behalf of core: 2023-11-02 10:31:55 +00:00
net adapt to ${CC_WNO_ADDRESS_OF_PACKED_MEMBER} 2023-06-03 21:26:27 +00:00
share use rumpkernel.github.io as the entry point 2023-07-15 20:00:11 +00:00
Makefile
…
Makefile.rump Add epoll(2) from Theodore Preduta as part of GSoC 2023 2023-07-28 18:18:59 +00:00
README.compileopts mk.conf(5): document rump variables 2023-07-05 16:40:33 +00:00
README.dirs
…
TODO
…
ldscript.rump Teach rump how to process __link_set_sysctl_funcs so it can handle 2020-03-21 04:48:37 +00:00
ldscript_sun.rump
…
linksyms_sun.c
…
listsrcdirs Merge the bouyer-xenpvh branch, bringing in Xen PV drivers support under HVM 2020-04-25 15:42:14 +00:00
makerumpsyscalls.sh
…
rump.sysmap Add epoll(2) from Theodore Preduta as part of GSoC 2023 2023-07-28 18:18:59 +00:00
sunldgen.sh
…

README.dirs 

	$NetBSD: README.dirs,v 1.12 2013/01/08 13:12:26 pooka Exp $


The following is a quick rundown of the current directory structure.
First, components in the kernel namespace, i.e. compiled with -D_KERNEL

sys/rump/librump - rump kernel base and factions
  /rumpkern	- kernel core, e.g. syscall, interrupt and lock support

  /rumpdev	- device support, e.g. autoconf subsystem
  /rumpnet	- networking support and sockets layer
  /rumpvfs	- file system support

sys/rump/include
  /machine - used for architectures where the rump kernel ABI is not yet the
	     same as the kernel module ABI.  will eventually disappear
	     completely
  /rump    - kernel headers installed to userspace

sys/rump/dev - device components, e.g. audio, raidframe, usb drivers

sys/rump/fs - file system components
  /lib/lib${fs}  - kernel file system code

sys/rump/net - networking components
  /lib/libnet	  - subroutines from sys/net, e.g. route and if_ethersubr
  /lib/libnetinet - TCP/IP
  /lib/libvirtif  - a virtual interface which uses host tap(4) to shovel
		    packets.  This is used by netinet and if_ethersubr.
  /lib/libshmif   - a virtual interface which uses a memory mapped file
		    as an ethernet bus.  works completely unprivileged.
  /lib/libsockin  - implements PF_INET using host kernel sockets.  This is
		    mutually exclusive with net, netinet and virtif.



The rest are out-of-kernel components (i.e. no -D_KERNEL).

hypercall interface:
src/lib/librumpuser
  The "rumpuser" hypercall interfaces are used by a rump kernel to
  access host resources.

remote client interface:
src/lib/librumpclient
  The rumpclient library provides remote access to rump kernel servers.

system call hijacking:
src/lib/librumphijack
  The rumphijack library allows intercepting system calls and redirecting
  them to a rump kernel server instead of the host kernel.  In other
  words, it allows existing binaries to request indicated services from
  a rump kernel instead of from the host kernel.

Users:
src/lib
  /libp2k  - puffs-to-vfs adaption layer, userspace namespace
  /libukfs - user kernel file system, a library to access file system
	     images (or devices) directly in userspace without going
	     through a system call and puffs.  It provides a slightly
	     higher interface than syscalls.

src/usr.sbin/puffs
  rump_$fs - userspace file system daemons using the kernel fs code

src/share/examples/rump
  Various examples detailing use of rump kernels in different scenarios.
  These are provided source-only.