> On 2004-10-29 13:37, Dan Nelson <[EMAIL PROTECTED]> wrote: >> In the last episode (Oct 29), Brad Waite said: >> > I'm trying to update my sys/pci/if_sk.c and would like to be able to >> > build several versions without having to build the entire world. >> >> Since that's a kernel driver, you only have to build a new kernel. > > An even better approach in the case of a single kernel driver is to leave > it > commented out in the kernel config file. Then it will be built as a > module by > default. After at least one buildworld/buildkernel cycle has finished > correctly with this configuration, you can use the already populated > /usr/obj > tree to build just this module: > > # cd /usr/src/sys/i386/conf > # config -g -d /usr/obj/usr/src/sys/MYKERNEL MYKERNEL > # cd /usr/obj/usr/src/sys/MYKERNEL > # make depend && make && make install > > If you have only touched a single .c file, the 'make depend' step is AFAIK > optional. The rest should finish pretty fast. > > Brave people might even get away by building the sk module only, by > emulating the specific part of the kernel build: > > # cd /usr/src/sys/modules/sk > # env MAKEOBJDIRPREFIX=/tmp/sk \ > KMODDIR=/boot/kernel DEBUG_FLAGS="-g" MACHINE=i386 \ > KERNBUILDDIR="/usr/obj/usr/src/sys/MYKERNEL" make obj > # env MAKEOBJDIRPREFIX=/tmp/sk \ > KMODDIR=/boot/kernel DEBUG_FLAGS="-g" MACHINE=i386 \ > KERNBUILDDIR="/usr/obj/usr/src/sys/MYKERNEL" make all > > If all this works, you can just kldload the new if_sk.ko from > `/tmp/sk/usr/src/sys/modules/sk' to test your changes. > > HTH, > Giorgos
Wow, Giorgos, this really *does* help. It never dawned on me that FBSD even supported loadable kernel modules. Feel kinda sheepish now, but hey, I guess you learn something new every day. In my stumbling around since you've enlightened me, I noticed a sk/ dir in /usr/src/sys/modules, and in there a Makefile. 'make install' apparently builds the .ko and installs it into /modules. Am I missing something here, or is this the way to go? Brad _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
