вторник, 7 февраля 2012 г.

devctl


Dynamic attach/detach of hinted devices.
Interesting, somebody want to see that feature in FreeBSD, at least for embedded purpose?
Maybe yes, maybe no. But will copy that info here also.
WARNING: FOLLOWING DEVCTL PATCH MAY EASILY PANIC YOUR SYSTEM, PLEASE
DO NOT TRY IT ON PRODUCTION SERVERS AND TRY IT WITH FILESYSTEMS MOUNTED
AS READONLY :)))))
So I introduce two patches first one [1] used to migrate from
static_hints or hints in the static_kenv to dynamic hints.
sysctl kern.hintmode=2 will copy hints from static hints or from static
kenv and put it into dynamic kenv. Those will allow to manipulate hints
values and attach hinted devices with devctl tool.
Second [2] allow attach/detach devices with userland tool devctl.
devctl tool allow add and initialize new devices which is not able to
be autoenumerating, such a hinted devices.
Both designed to have ability update EEPROM items in runtime, since
some device can't work in mode when it accessible like a EEPROM chip.
Example:
# sysctl kern.hintmode=2
# kenv hint.mx25l.0.at="spibus0"
# kenv hint.mx25l.0.cs=0
# kenv hint.mx25l.0.chipname="at25128"
# devctl hinted spibus 0 mx25l 0
mx25l0: at cs 0 mode 0 on spibus0
mx25l0: at25128, sector 64 bytes, 256 sectors
GEOM: new disk flash/spi0
Someone may found it also useful for testing device attach/detach code
(memory leaks, resource allocation, etc).
So, say me please your opinion.
1. http://my.ddteam.net/files/2012-01-31.to_dynamic_hints.patch
2. http://my.ddteam.net/files/2012-01-31.devctl2.patch

четверг, 22 сентября 2011 г.

How incorrectly cross build FreeBSD ports

Q: Why incorrectly?
A: Because configure script will thought what software will be built for host system, not for target. (for i386 instead of armeb)

Since we still can't cross compile FreeBSD ports, everyone use own workaround for that. So I decide to write my own notes to help some folks who don't yet have own workaround for that.

1. Toolchain
At first we need cross toolchain for building, there is many ways to do it, but I use this:
TARGET=arm
TARGET_ARCH=armeb
SRC_TREE=/usr/src

cd ${SRC_TREE}
make TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} TARGET_CPUARCH=${TARGET} toolchain

When toolchain build done you will have toolchain binary (cc,cpp,gcc etc.) in directory:
/usr/obj/${TARGET}.${TARGET_ARCH}/${SRC_TREE}/tmp/usr/bin

2. Port dependency
Change dir to desire port, and get two lists of dependencies:

> cd /usr/ports/security/openvpn

> make run-depends-list
/usr/ports/archivers/lzo2
> make build-depends-list
/usr/ports/archivers/lzo2
/usr/ports/archivers/xz





Remove ports that exist in run-depends-list from build-depends-list, and you will get:
  1. run-depends-list - list of ports that must be also cross-compiled.
  2. build-depends-list - list of ports that must be installed on build host to be able to build your desired port.
3. Building
Install ports from build-depends-list. Then for every ports in run-depends-list run:
  1. make configure
  2. PATH=/usr/obj/${TARGET}.${TARGET_ARCH}/${SRC_TREE}/tmp/usr/bin:${PATH} make DESTDIR=${PATH_TO_TARGET_DEVICE_ROOTFS} install
Some ports require to manual fixing for cross-building. Example:
lzo2 which is dependency for openvpn have test target in port Makefile, so we need to comment out that requirement, because we can't run those binary's (you remember, we do compilation for system with different CPU). To do so we need remove target post-build from Makefile:

post-build:
	@${ECHO_MSG} "===>  Running self-tests for ${PKGNAME} (can take a few minutes)"
	@#: override MALLOC_OPTIONS, else tests take excessively long
	cd ${WRKSRC} && ${SETENV} MALLOC_OPTIONS=jz ${MAKE} check test SHELL="${SH} -x"

That for example only, because last commit add checking of variable WITHOUT_CHECKS. So we need only define WITHOUT_CHECKS to avoid those tests.
 
  1. make configure
  2. PATH=/usr/obj/${TARGET}.${TARGET_ARCH}/${SRC_TREE}/tmp/usr/bin:${PATH} make WITHOUT_CHECKS=yes DESTDIR=${PATH_TO_TARGET_DEVICE_ROOTFS} install
Hope this will help somebody to do great work :)

понедельник, 19 сентября 2011 г.

It's time to bringup DIR-632

Atheros AR7242 +AR9287

TODO

1. Test AR9287 hostup support

2. Done wireless configuration pages

3. Write AR7242 internal Ethernet switch support

4. Write RTL8309 Ethernet switch support

вторник, 29 сентября 2009 г.

swap на файловой системе

Если по какой-то причине вы не сделали SWAP раздел, но вам нужно "немного" больше памяти, то можно воспользоваться mdconfig-ом:
# dd if=/dev/zero of=/swap.file bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 47.179320 secs (22758739 bytes/sec)
# mdconfig -a -t vnode -f /swap.file
md0
# swapon /dev/md0