NetBSD

History

kamil 77a1ad5f00 Switch the iconv(3) prototype to the POSIX conformant variation Remove const from the 2nd argument. const char and char are incompatible types and it was a cost to keep the technically incompatible form for a more purist variation. NetBSD was almost the last alive OS to still keep the const argument (known leftovers: Minix and Illumos). Keep the const form for the internal purposes inside citrus and rump. Address the build breakage fallout in the same change. There are no ABI changes. Change accepted by core@.		2019-10-24 18:17:14 +00:00
..
dev	Switch the iconv(3) prototype to the POSIX conformant variation	2019-10-24 18:17:14 +00:00
fs	Cleanup modules "solaris" and "zfs":	2019-05-07 08:51:09 +00:00
include	regen	2019-09-22 23:03:20 +00:00
kern	xc_barrier - convenience function to xc_broadcast() a nop.	2019-10-06 15:11:16 +00:00
librump	Add a function cast for enosys	2019-10-15 18:36:38 +00:00
net	introduce some common variables for use in GCC warning disables:	2019-10-13 07:28:04 +00:00
share	Remove Pp without effect.	2019-03-08 08:24:41 +00:00
ldscript_sun.rump
ldscript.rump
linksyms_sun.c
listsrcdirs	Remove libelf from "usr" list. Deleted 2015-09-30.	2019-09-27 11:57:42 +00:00
Makefile
Makefile.rump
makerumpsyscalls.sh
README.compileopts
README.dirs
rump.sysmap	regen	2019-09-22 23:03:20 +00:00
sunldgen.sh
TODO

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.