it caused the return from the enclosing function to break, as well as the
ssp return on i386. To fix both issues, split configure in two pieces
the one before calling ssp_init and the one after, and move the ssp_init()
call back in main. Put ssp_init() in its own file, and compile this new file
with -fno-stack-protector. Tested on amd64.
XXX: If we want to have ssp kernels working on 5.0, this change needs to
be pulled up.
- renamed to MEMORY_DISK_RBFLAGS to better fit the rest of the
MEMORY_DISK options(4)
- change default value to RB_AUTOBOOT instead of RB_SINGLE, and adapt
the config(5) files accordingly
- document this option inside options(4)
See also http://mail-index.netbsd.org/tech-kern/2008/12/25/msg003924.html
Reviewed by abs@ in private mail.
magic libc symbol. This also allows to bid farewell to subr_prf2.c
and merge the contents back to subr_prf.c. The host kernel bridging
is now done via rumpuser_putchar().
the base NetBSD system. It uses Linux LVM2 tools and our BSD licensed
device-mapper driver.
The device-mapper driver can be used to create virtual block devices which
maps virtual blocks to real with target mapping called target. Currently
these targets are available a linear, zero, error and a snapshot (this is
work in progress and doesn't work yet).
The lvm2tools adds lvm and dmsetup binary to based system, where the lvm
tool is used to manage and administer whole LVM and the dmestup is used to
communicate iwith device-mapper kernel driver. With these tools also
a libdevmapper library is instaled to the base system.
Building of tools and driver is currently disable and can be enabled with
MKLVM=yes in mk.conf. I will add sets lists and rc.d script soon.
Oked by agc@ and cube@.
into modules. By and large this commit:
- shuffles header files and ifdefs
- splits code out where necessary to be modular
- adds module glue for each of the components
- adds/replaces hooks for things that can be installed at runtime
own file, subr_exec_fd.c (they're used only by exec).
After this change, the kernel source modules are in a partitioned
enough state to allow building a system without vfs at all.
mail: http://mail-index.netbsd.org/source-changes/2008/10/10/msg211109.html
* Scary-looking socket locking stubs (changed to KASSERT of locked)
* depends on INET inappropriately (though now you must add new
accept filter names to the uipc_accf.c line in conf/files if
you aren't using dataready or httpready)
* New code uses MALLOC/FREE -- changed to kmem_alloc/kmem_free;
could be pool_cache, these are all fixed-size allocations.
We need to verify that this works as expected with protocols with per-socket
locking, like PF_LOCAL. I'm a little concerned about the case where the
lock on the listen socket isn't the same lock as on the eventual connected
socket.
UDF. Future users could be msdosfs, ufs, nilfs2 (when ready), cd9660 etc.
Note that its not the same as UFS's DIRHASH support; UFS would need a good
cleanup/splitout of directory operations to adopt to this new directory
hashing support since most directory operations are interweaved with the
vnops itself. This is a TODO.
unconfigured device. That removes the compile-time constant number
of useable devices.
While here, add disk_busy()/disk_unbusy() instrumentation.
Reviewed by: Quentin Garnier <cube@netbsd.org>
2) get rid of grep variable -- grep isn't used here
3) add a -m option that prints the release major number (like "4")
4) add a comment documenting the options
support for specifying an accept filter for a service (mostly as a usage
example, but it can be handy for other things). Manual pages to follow
in a day or so.
OK core@.
Add Wasabi System's WAPBL (Write Ahead Physical Block Logging)
journaling code. Originally written by Darrin B. Jewell while
at Wasabi and updated to -current by Antti Kantee, Andy Doran,
Greg Oster and Simon Burge.
OK'd by core@, releng@.
into two parts so that some of the routines could be used by rump.
Now that rump uses both vfs_subr and vfs_subr2 and there is no
reason to keep two files lying around, re-unite them.
const char bootprog_kernrev[] = "4.99.70";
For now, we still also include the builder name and date and such, so
that we don't break anything, but those are (probably) on the way out.
Part of the "bit-identical sources yield bit-identical release files"
project.
The rule is, if you change scan.l or gram.y, you bump the config(5)
version. If you implement the changes under sys/conf/files or affiliate,
you bump the required version in sys/conf/files or in an appropriate place
to minimise annoyance. If the changes makes new config(1) incompatible
with a previous version of config(5), embed it in config(1) using the
CONFIG_MINVERSION definition along with CONFIG_VERSION.
This has been in the tree for what, 3 years now? It's even documented...
to dig it out manually if installing by version number... and also to
make it somewhat easier to notice up front if one accidentally boots
the wrong test kernel. not like I've ever done that. ;-)
PR kern/38563.
"retro" computers, but NetBSD also runs a growing number of rare
and retro add-on cards. With this patch, NetBSD supports the IDEC
Supervision/16, a black&white image capture board for the 16-bit
ISA bus. Approximate date of manufacture: 1991. Total instances
known to be in use throughout the world: one.
Coming soon; isvctl(8), the utility program for capturing 8-bit,
512x480 images at speeds of up to 6 frames per second.
them in the mi "files" file, and remove include statements from md files.
These shouldn't pull in additional kernel code when not in use, so it
shouldn't do any harm except a risk of namespace collisions which
should be easy to fix.
host controller implementations, start with two little functions
which fake up string descriptors (which were inconststent, language
table fetching didn't interoperate with other code in the tree)
Introduce a per-FS rename lock and new vfsops to manipulate it.
Get this lock while renaming. Also add another relookup() in do_sys_rename,
which is a hack to kludge around some of the worst deficiencies of
ufs_rename.
reviewed-by: pooka (and an earlier rev by ad)
posted on tech-kern with no objections.
- All three functions are included in the kernel by default.
They call a backend function cpu_in_cksum after possibly
computing the checksum of the pseudo header.
- cpu_in_cksum is the core to implement the one-complement sum.
The default implementation is moderate fast on most platforms
and provides a 32bit accumulator with 16bit addends for L32 platforms
and a 64bit accumulator with 32bit addends for L64 platforms.
It handles edge cases like very large mbuf chains (could happen with
native IPv6 in the future) and provides a good base for new native
implementations.
- Modify i386 and amd64 assembly to use the new interface.
This disables the MD implementations on !x86 until the conversion is
done. For Alpha, the portable version is faster.
compiled with -g. For the initial set, netbsd on amd64 grows by around
80KB. This allows much easier use of GDB for post-mortem debugging as
it can understand the layout of data structures. The additional data can
be strip(1)ped off normally for size constraint environments.
for config_time.h and athhal_options.h.
Note: we still copy param.c because I'm told that we should still support
people editing that on a per-compile basis.
Add schedctl(8) - a program to control scheduling of processes and threads.
Notes:
- This is supported only by SCHED_M2;
- Migration of LWP mechanism will be revisited;
Proposed on: <tech-kern>. Reviewed by: <ad>.
For regular (non PIE) executables randomization is enabled for:
1. The data segment
2. The stack
For PIE executables(*) randomization is enabled for:
1. The program itself
2. All shared libraries
3. The data segment
4. The stack
(*) To generate a PIE executable:
- compile everything with -fPIC
- link with -shared-libgcc -Wl,-pie
This feature is experimental, and might change. To use selectively add
options PAX_ASLR=0
in your kernel.
Currently we are using 12 bits for the stack, program, and data segment and
16 or 24 bits for mmap, depending on __LP64__.
