src/sys/modules/drm, branch releng/11.4

MFC r314651,r318439,r318440:

2017-05-30T04:11:12+00:00

r314651:

sys/modules: normalize .CURDIR-relative paths to SRCTOP

This simplifies make output/logic

Tested with:	`cd sys/modules; make ALL_MODULES=` on amd64

r318439:

Normalize .PATH on SRCTOP

This will help Jenkins dedupe 9 warnings between the static build and
the module build of ipsec(4).

Missed in SRCTOP conversion in r314651.

MFC with:	r314651

r318440:

Normalize SYSDIR on SRCTOP instead of .CURDIR

This is being done to simplify pathing for CFLAGS and source files.

The radeon DRI module doesn't really work correctly on powerpc, so don't build

2015-01-03T22:36:18+00:00

it.  Hopefully we'll get radeonkms eventually.

Discussed with:	nwhitehorn
MFC after:	2 weeks

Re-support CWARNFLAGS, lost when bsd.sys.mk was removed. Also, support

2015-01-03T03:35:18+00:00

CWARNFALGS.$file centrally so we don't have to have it in all the
places. Remove a few warning flags that are no longer needed.
Also, always use -Wno-unknown-pragma to (hopefully temporarily) work
around #pragma ident in debug.h in the opensolaris code. Remove some
stale warning suppression that's no longer necessary.

Remove dependence on source tree options. Move all kernel module

2014-08-11T14:50:49+00:00

options into kern.opts.mk and change all the places where we use
src.opts.mk to pull in the options. Conditionally define SYSDIR and
use SYSDIR/conf/kern.opts.mk instead of a CURDIR path. Replace all
instances of CURDIR/../../etc with STSDIR, but only in the affected
files.

As a special compatibility hack, include bsd.owm.mk at the top of
kern.opts.mk to allow the bare build of sys/modules to work on older
systems. If the defaults ever change between 9.x, 10.x and current for
these options, however, you'll wind up with the host OS' defaults
rather than the -current defaults. This hack will be removed when
we no longer need to support this build scenario.

Reviewed by: jhb
Differential Revision: https://phabric.freebsd.org/D529

Use src.opts.mk in preference to bsd.own.mk except where we need stuff

2014-05-06T04:22:01+00:00

from the latter.

Extend dim's hack from r228978: not only clang but gcc on non-x86 platforms

2012-10-28T02:15:35+00:00

warns about unused variables in this code, so always add -Wno-unused to
the warning flags. Why gcc on x86 *doesn't* warn about this, I will never
know. The code itself should probably be fixed at some point.

Don't try to build Linux compatibility stuff on platforms without

2012-10-27T23:14:37+00:00

COMPAT_LINUX.

Add MK_SOURCELESS build option. Setting MK_SOURCELESS to "no" will disable

2012-02-04T00:54:43+00:00

kernel modules that include binary-only code.

More fine-grained control is provided via MK_SOURCELESS_HOST (for native code
that runs on host CPU) and MK_SOURCELESS_UCODE (for microcode).

Reviewed by:	julian, delphij, freebsd-arch
Approved by:	kib (mentor)
MFC after:	2 weeks

For several files in sys/dev/drm, disable -Wunused-value when building

2011-12-30T01:54:45+00:00

with clang.  There are several macros in these files that return values,
and in some cases nothing is done with them, but it is completely
harmless.  For some other files, also disable -Wconstant-conversion,
since that triggers a false positive with the DMA_BIT_MASK() macro.

MFC after:	1 week

Welcome drm support for VIA unichrome chips.

2010-01-31T14:30:39+00:00

MFC after:	2 weeks