problem cross-compiling firefly with flac support

[ischg]

I just succeeded in cross-compiling firefly svn 1586 for a dlink dns-323 (a NAS with an arm processor). While I’m not quite sure whether I can actually use the NAS to transcode flac in real-time, I’m still willing to give it a try 😉

At this point, everything runs without the –enable-flac flag. If I include flac, I can compile everything, but once I launch firefly, I get the following:

 /mnt/HD_a2 # mt-daapd -f -d 9 -c /mnt/HD_a2/lnx_bin/etc/mt-daapd.conf

Got general/web_root, convert to general/web_root (/mnt/HD_a2/lnx_bin/mt-daapd/admin-root)

Found existing section

Got general/port, convert to general/port (3689)

Found existing section

Got general/admin_pw, convert to general/admin_pw (mt-daapd)

Found existing section

Got general/db_type, convert to general/db_type (sqlite3)

Found existing section

Got general/db_parms, convert to general/db_parms (/mnt/HD_a2/lnx_bin/mt-daapd/cache)

Found existing section

Got general/mp3_dir, convert to general/mp3_dir (/mnt/HD_a2/shared/Mp3test)

Found existing section

Found 1 tokens in /mnt/HD_a2/shared/Mp3test

Token 1: /mnt/HD_a2/shared/Mp3test

Got general/servername, convert to general/servername (DNS-323 Firefly %v on %h)

Found existing section

Got general/runas, convert to general/runas (root)

Found existing section

Got general/playlist, convert to general/playlist (/mnt/HD_a2/lnx_bin/mt-daapd/cache/mt-daapd.playlist)

Found existing section

Got general/extensions, convert to general/extensions (.mp3,.m4a,.m4p,.ogg,.flac)

Found existing section

Got general/ssc_codectypes, convert to general/ssc_codectypes (ogg,flac,alac)

Found existing section

Got general/ssc_prog, convert to general/ssc_prog (/mnt/HD_a2/lnx_bin/bin/mt-daapd-ssc.sh)

Found existing section

Got general/logfile, convert to general/logfile (/mnt/HD_a2/lnx_bin/log/mt-daapd.log)

Found existing section

Expanding precomments to 2048

Expanding precomments to 4096

Got general/scan_type, convert to general/scan_type (2)

Found existing section

Got plugins/plugin_dir, convert to plugins/plugin_dir (/mnt/HD_a2/lnx_bin/mt-daapd/plugins)

Found existing section

Checking existence of /mnt/HD_a2/lnx_bin/mt-daapd/admin-root

Checking existence of /mnt/HD_a2/lnx_bin/mt-daapd/admin-root

Checking existence of /mnt/HD_a2/lnx_bin/mt-daapd/cache

Checking existence of /mnt/HD_a2/lnx_bin/mt-daapd/cache

Checking existence of /mnt/HD_a2/lnx_bin/mt-daapd/plugins

Checking existence of /mnt/HD_a2/lnx_bin/mt-daapd/plugins

Loading new config file.

Firefly Version svn-1586: Starting with debuglevel 9

Attempting to load plugin /mnt/HD_a2/lnx_bin/mt-daapd/plugins/out-daap.so

R_ARM_PC24: Compile shared libraries with -fPIC!

In my clumsy efforts, I’m pretty sure I used -fPIC. Specifically, I configured flac with

./configure --prefix=/opt/dns323/firefly/build/lnx_bin --host=arm-linux-uclibc --with-pic --with-ogg=/opt/dns323/firefly/build/lnx_bin --disable-rpath LDFLAGS=-L/opt/dns323/firefly/build/lnx_bin/lib CPPFLAGS=-I/opt/dns323/firefly/build/lnx_bin/include CFLAGS=-Os -mtune=arm9e -march=armv5te -fPIC -DPIC

and firefly with

export ac_cv_func_setpgrp_void=no

./configure --prefix=/ --sbindir=/bin --target=arm-linux-uclibc --host=arm-linux-uclibc --datadir=/ --build=i386-pc-linux-gnu --enable-sqlite3 --enable-oggvorbis --enable-flac --with-gnu-ld --with-sqlite-includes=/opt/dns323/firefly/build/lnx_bin/include --with-sqlite-libs=/mnt/HD_a2/lnx_bin/lib --with-id3tag=/opt/dns323/firefly/build/lnx_bin CFLAGS=-Os -mtune=arm9e -march=armv5te -fPIC -DPIC CPPFLAGS=-DSETPGRP_VOID

As mentioned above, once I drop –enable-flac, everything works.

I’m pretty sure that my configuration has ample room for mistakes. Any hints/pointers? Thanks a lot!

[ischg]

partial success …

I just upgraded from flac-1.1.2 to flac-1.1.4 and now firefly reads the plugin correctly. I actually see the flac file on my SB.
However, I still can’t play it: firefly fails with

Session 0: Streaming file 'frog.flac' to 192.168.1.69 (offset 0)

Illegal instruction

wavstreamer: Can't read wav header.

[rpedde]

@ischg wrote:

partial success …

I just upgraded from flac-1.1.2 to flac-1.1.4 and now firefly reads the plugin correctly. I actually see the flac file on my SB.
However, I still can’t play it: firefly fails with

Session 0: Streaming file 'frog.flac' to 192.168.1.69 (offset 0)

Illegal instruction

wavstreamer: Can't read wav header.

Is the illegal instruction coming from flac or mt-daapd?

I think probably flac. See if you can transcode a file by hand to wav using flac. I thik that’s probably your question.

— Ron

[ischg]

@rpedde wrote:

Is the illegal instruction coming from flac or mt-daapd?
I think probably flac. See if you can transcode a file by hand to wav using flac.

Ron, you’re absolutely right: flac is the problem. I just ran the transcode manually and got

/mnt/HD_a2/shared/Mp3test # flac --silent --decode --stdout frog.flac

Illegal instruction

I guess it’s back to cross compiling flac … thanks for your insight!

Regard,
-Ingmar

[ischg]

Well, I’ve played around with my configuration options, but to no avail. Is there any log file where I can get more detailed information on where the illegal instruction occurred?

At this point, I’m not sure whether it’s some mismatch in architecture. The toolchain I use already came with CFLAGS given as

-Os -mtune=arm9e -march=armv5te

which should match the arm processor. I found the following in dmesg:

CPU: ARM926EJ-Sid(wb) [41069260] revision 0 (ARMv5TEJ)

also, /proc/cpuinfo gives the following

/mnt/HD_a2 # cat /proc/cpuinfo

Processor       : ARM926EJ-Sid(wb) rev 0 (v5l)

BogoMIPS        : 331.77

Features        : swp half thumb fastmult edsp java

CPU implementer : 0x41

CPU architecture: 5TEJ

CPU variant     : 0x0

CPU part        : 0x926

CPU revision    : 0

Cache type      : write-back

Cache clean     : cp15 c7 ops

Cache lockdown  : format C

Cache format    : Harvard

I size          : 32768

I assoc         : 1

I line length   : 32

I sets          : 1024

D size          : 32768

D assoc         : 1

D line length   : 32

D sets          : 1024



Hardware        : MV-88fxx81

Revision        : 0000

Serial          : 0000000000000000

Thanks for all your help!

[Author]

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