> > > > Using gcc-7.2.0 and alsa-lib-1.1.5 > > > > > > > > Is there a way to compile alsa-lib with lto (the method below works with alsa-plugins and alsa-utils)? > > > > > > > > Compiling alsa-lib like this works fine: > > > > > > > > CC="gcc -mtune=generic -Os -pipe" CXX="g++ -mtune=generic -Os > > > > -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local > > > > --disable-static --localstatedir=/var > > > > --with-configdir=/usr/local/etc/alsa > > > > > > > > ..but compiling with lto like this fails as per below: > > > > > > > > CC=" gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" > > > > CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe > > > > -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local > > > > --disable-static --localstatedir=/var > > > > --with-configdir=/usr/local/etc/alsa > > > > > > > > libtool: link: gcc -flto -fuse-linker-plugin -mtune=generic -Os > > > > -pipe -o .libs/aserver aserver.o ../src/.libs/libasound.so -lm > > > > -ldl -lpthread -lrt > > > > /tmp/ccoTf6DH.ltrans0.ltrans.o: In function `pcm_shm_cmd': > > > > <artificial>:(.text+0xe7a): undefined reference to `snd_pcm_forward' > > > > ../src/.libs/libasound.so: undefined reference to `snd_timer_params_set_filter' > > > > ../src/.libs/libasound.so: undefined reference to `snd_ctl_elem_info_get_dimension' > > > >../src/.libs/libasound.so: undefined reference to `snd_ctl_elem_info_get_dimensions' > > > > collect2: error: ld returned 1 exit status > > > > make[1]: *** [Makefile:333: aserver] Error 1 > > > > make[1]: Leaving directory '/usr/src/alsa-lib-1.1.5/aserver' > > > > make: *** [Makefile:338: all-recursive] Error 1 Command exited > > > > with non-zero status 2 > > > > > > That's interesting. These are basically fallouts of the internal > > > function calls, and they should have been called with INTERNAL() > > > wrapper for covering the versioned symbols. > > > > > > I fixed the latest git tree, but still something doesn't work with > > > linkage in aserver. I guess Makefile.am in aserver needs to be > > > fixed somehow, but I leave it as is for now, as you can work around > > > it by disabling via the configure option. > > > > > Thanks - I'm not sure though what you mean by "configure option" - there is no "--disable-aserver"? > > It can be done by specifying --with-pcm-plugins without shm. > But it'd be good to have --disable-aserver option for the easiness (or at best fix the aserver build :) > > > In any case, libasound is built before "make" halts and is 29kb > > smaller (stripped) with lto :) > > And does everything still work, hopefully? > Oops - spoke too soon :( Using libasound from alsa-lib-1.1.5 compiled with lto, but without your update from alsa git: $ speaker-test -Ddefault:1 -c2 -t wav -l1 speaker-test 1.1.5 Playback device is default:1 Stream parameters are 48000Hz, S16_LE, 2 channels WAV file(s) Rate set to 48000Hz (requested 48000Hz) speaker-test: relocation error: speaker-test: symbol snd_pcm_hw_params_get_buffer_size_min, version ALSA_0.9.0rc4 not defined in file libasound.so.2 with link time reference _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
