building custom kernel on -current: unknown option "COMPAT_LINUX"
jhb at freebsd.org
Thu Feb 14 21:38:06 UTC 2013
On Saturday, February 09, 2013 10:01:25 pm illoai at gmail.com wrote:
> On 9 February 2013 20:26, Anton Shterenlikht <mexas at bristol.ac.uk> wrote:
> > I removed COMPAT_LINUX, and only left
> > options COMPAT_43
> > options COMPAT_LINUX32
> From /usr/src/sys/amd64/conf/NOTES (9.1-RELEASE):
> # Enable Linux ABI emulation
> #XXX#options COMPAT_LINUX
> # Enable 32-bit Linux ABI emulation (requires COMPAT_43 and
> options COMPAT_LINUX32
> I think I first ran up against this when I moved to 9.0 some
> time ago, but yes, amd64 uses a different kernel config
> option than i386 for linux compat.
> I tend to leave it as a module & load it if I perchance
> need it. This also allows rebuilding & reloading the
> modules without a reboot, should it need it. The
> modules seems to build fine without having to
> fiddle about with kernel config jiggerypokey.
COMPAT_LINUX will work on amd64 eventually and will be used for 64-bit Linux
binaries (COMPAT_LINUX32 is to run Linux/i386 binaries on FreeBSD/amd64).
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