Quoting the original note about WITH_META_MODE (
https://lists.freebsd.org/pipermail/freebsd-current/2016-May/061481.html ):
> You will also need to load the filemon(4) module with 'kldload filemon'.
But head's sys/modules/Makefile says:
> .if defined(MODULES_OVERRIDE) && !defined(ALL_MODULES)
> SUBDIR=${MODULES_OVERRIDE}
> .else
> SUBDIR= \
. . .
> ${_filemon} \
. . .
> .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
. . .
> _filemon= filemon
. . .
as the only contexts that provide a filemon.ko to use with kldload.
Thus, for example, arm variants (32 bit and 64 bit) and powerpc variants (32bit
and 64 bit) do not have WITH_META_MODE as an option as things are set up.
I had been hoping to cut down on the time for clang-related rebuilds during
native buildworld runs on my slower buildworld contexts (armv7a/cortex-a7,
powerpc, powerpc64). But it was not to be.
It appears that, once some arm variants are officially tier 1, WITH_META_MODE
will not span all tier 1 platforms.
[Since I tend to use non-tier-1 platforms I tend to notice some of the
statements about FreeBSD that are true of only tier 1 without being explicit
about it. But initially it takes some research to discover that status for each
such point. WITH_META_MODE is an example.]
===
Mark Millard
markmi at dsl-only.net
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