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Date:      Fri, 14 Oct 2016 23:48:40 -0700
From:      Mark Millard <markmi@dsl-only.net>
To:        Bernd Walter <ticso@cicely7.cicely.de>
Cc:        freebsd-arm <freebsd-arm@freebsd.org>, jbeich@freebsd.org, ticso@cicely.de
Subject:   Re: libx264 fails to build on a raspberry pi2
Message-ID:  <C51085A4-78BB-45D3-9EB0-4BE7B921C7DE@dsl-only.net>
In-Reply-To: <20161014165021.GN99217@cicely7.cicely.de>
References:  <20161014165021.GN99217@cicely7.cicely.de>

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On 2016-Oct-14, at 9:50 AM, Bernd Walter <ticso at cicely7.cicely.de> =
wrote:

> This seems to be a new problem, as I've installed the port before
> on another Pi2 System (11-RC1):
> libx264-0.144.2533_1           H.264/MPEG-4 AVC Video Encoding =
(Library)
>=20
> System is the official FreeBSD 11-RELEASE image for Pi2.
> FreeBSD rpi2 11.0-RELEASE-p1 FreeBSD 11.0-RELEASE-p1 #0 r306420: Thu =
Sep 29 13:01:42 UTC 2016     =
root@releng2.nyi.freebsd.org:/usr/obj/arm.armv6/usr/src/sys/RPI2  arm
>=20
> [61]cicely1# svn info /usr/ports/multimedia/libx264=20
> Path: multimedia/libx264
> Working Copy Root Path: /usr/ports
> URL: file:///data/freebsd-svn/ports/head/multimedia/libx264
> Relative URL: ^/head/multimedia/libx264
> Repository Root: file:///data/freebsd-svn/ports
> Repository UUID: 35697150-7ecd-e111-bb59-0022644237b5
> Revision: 423971
> Node Kind: directory
> Schedule: normal
> Last Changed Author: jbeich
> Last Changed Rev: 422675
> Last Changed Date: 2016-09-23 15:15:06 +0200 (Fri, 23 Sep 2016)
>=20
> ...
> cc -Wshadow -O3 -ffast-math -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -Wall -I. -I. -isystem =
/usr/local/include -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -std=3Dgnu99 -D_GNU_SOURCE =
-fPIC -fomit-frame-pointer -fno-tree-vectorize -isystem =
/usr/local/include  -c -o encoder/encoder.o encoder/encoder.c

Above (and later below) -mcpu=3Darm1136jf-s is odd for an rpi2b. Is =
"36jf" right for any raspberry pi version? "76jzf" I'm aware of for =
older rpi's (if I remember right).

-mcpu=3Dcortex-a7 would match an rpi2b as I understand.

For rpi2b I by default use:

# more /etc/make.conf
DEFAULT_VERSIONS+=3Dperl5=3D5.22
WRKDIRPREFIX=3D/usr/obj/portswork
WITH_DEBUG=3D
WITH_DEBUG_FILES=3D
MALLOC_PRODUCTION=3D
CFLAGS+=3D -mcpu=3Dcortex-a7
CXXFLAGS+=3D -mcpu=3Dcortex-a7
CPPFLAGS+=3D -mcpu=3Dcortex-a7

(and similarly for buildworld and buildkernel as well, not just ports).


But figuring out why -mcpu=3Darm1136jf-s is in use for your rpi2b =
targeted build would seem to be a direction to go for what you were =
building.


> cc -Wshadow -O3 -ffast-math -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -Wall -I. -I. -isystem =
/usr/local/include -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -std=3Dgnu99 -D_GNU_SOURCE =
-fPIC -fomit-frame-pointer -fno-tree-vectorize -isystem =
/usr/local/include  -c -o encoder/lookahead.o encoder/lookahead.c
> cc -Wshadow -O3 -ffast-math -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -Wall -I. -I. -isystem =
/usr/local/include -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -std=3Dgnu99 -D_GNU_SOURCE =
-fPIC -fomit-frame-pointer -fno-tree-vectorize -isystem =
/usr/local/include  -c -o common/threadpool.o common/threadpool.c
> cc -Wshadow -O3 -ffast-math -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -Wall -I. -I. -isystem =
/usr/local/include -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -std=3Dgnu99 -D_GNU_SOURCE =
-fPIC -fomit-frame-pointer -fno-tree-vectorize -isystem =
/usr/local/include  -c -o common/arm/mc-c.o common/arm/mc-c.c
> cc -Wshadow -O3 -ffast-math -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -Wall -I. -I. -isystem =
/usr/local/include -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -std=3Dgnu99 -D_GNU_SOURCE =
-fPIC -fomit-frame-pointer -fno-tree-vectorize -isystem =
/usr/local/include  -c -o common/arm/predict-c.o common/arm/predict-c.c
> cc -Wshadow -O3 -ffast-math -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -Wall -I. -I. -isystem =
/usr/local/include -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -std=3Dgnu99 -D_GNU_SOURCE =
-fPIC -fomit-frame-pointer -fno-tree-vectorize -isystem =
/usr/local/include  -c -o common/opencl.o common/opencl.c
> cc -Wshadow -O3 -ffast-math -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -Wall -I. -I. -isystem =
/usr/local/include -O -pipe  -isystem /usr/local/include =
-fno-strict-aliasing -mcpu=3Darm1136jf-s -std=3Dgnu99 -D_GNU_SOURCE =
-fPIC -fomit-frame-pointer -fno-tree-vectorize -isystem =
/usr/local/include  -c -o encoder/slicetype-cl.o encoder/slicetype-cl.c
> cc -I. -I. -c -DSTACK_ALIGNMENT=3D4 -DPIC -DHIGH_BIT_DEPTH=3D0 =
-DBIT_DEPTH=3D8 -o common/arm/cpu-a.o common/arm/cpu-a.S
> cc -I. -I. -c -DSTACK_ALIGNMENT=3D4 -DPIC -DHIGH_BIT_DEPTH=3D0 =
-DBIT_DEPTH=3D8 -o common/arm/pixel-a.o common/arm/pixel-a.S
> cc -I. -I. -c -DSTACK_ALIGNMENT=3D4 -DPIC -DHIGH_BIT_DEPTH=3D0 =
-DBIT_DEPTH=3D8 -o common/arm/mc-a.o common/arm/mc-a.S
> cc -I. -I. -c -DSTACK_ALIGNMENT=3D4 -DPIC -DHIGH_BIT_DEPTH=3D0 =
-DBIT_DEPTH=3D8 -o common/arm/dct-a.o common/arm/dct-a.S
> cc -I. -I. -c -DSTACK_ALIGNMENT=3D4 -DPIC -DHIGH_BIT_DEPTH=3D0 =
-DBIT_DEPTH=3D8 -o common/arm/quant-a.o common/arm/quant-a.S
> <instantiation>:29:5: error: instruction requires: armv6t2
>    rbit r1, r1
>    ^
> common/arm/quant-a.S:362:1: note: while in macro instantiation
> decimate_score_1x 15
> ^
> <instantiation>:29:5: error: instruction requires: armv6t2
>    rbit r1, r1
>    ^
> /tmp/quant-a-6e019c.s:515:1: note: while in macro instantiation
> decimate_score_1x 16
> ^

Whatever caused the -mcpu=3Darm1136jf-s usage earlier above might also =
cause misclassification here as well, so it is not even targeting an =
armv6t2 (armv6 with Thumb-2 if I understand right), much less a armv-7a =
(march)? "ARM1136 does not support Neon or Thumb-2 instructions from the =
Cortex-A series": see =
https://www.arm.com/products/processors/classic/arm11/arm1136.php ).

> cc -I. -I. -c -DSTACK_ALIGNMENT=3D4 -DPIC -DHIGH_BIT_DEPTH=3D0 =
-DBIT_DEPTH=3D8 -o common/arm/deblock-a.o common/arm/deblock-a.S
> gmake[4]: *** [Makefile:217: common/arm/quant-a.o] Error 1
> gmake[4]: *** Waiting for unfinished jobs....
> gmake[4]: Leaving directory =
'/usr/obj/usr/ports/multimedia/libx264/work/x264-snapshot-20160921-2245-st=
able'
> =3D=3D=3D> Compilation failed unexpectedly.
> Try to set MAKE_JOBS_UNSAFE=3Dyes and rebuild before reporting the =
failure to
> the maintainer.
> *** Error code 1
>=20
> Stop.
> make[3]: stopped in /usr/ports/multimedia/libx264
> *** Error code 1
>=20
> Stop.
> make[2]: stopped in /usr/ports/multimedia/libx264
> *** Error code 1
>=20
> Stop.
> make[1]: stopped in /usr/ports/multimedia/ffmpeg
> *** Error code 1
>=20
> Stop.
> make: stopped in /usr/ports/multimedia/ffmpeg
> 377.491u 24.840s 2:59.62 223.9% 47346+407k 1+72io 17pf+0w
> Exit 1
>=20
> --=20
> B.Walter <bernd@bwct.de> http://www.bwct.de
> Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.



=3D=3D=3D
Mark Millard
markmi at dsl-only.net






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