destroyedlolo Posted October 31, 2021 Posted October 31, 2021 Hello, I migrated my dashboard project from a BananaPro under "Buster" to a BananaPI under "Bullseye", image took from the website, verified and up to date as per Armbian-config. The source code of my project is exactly the same as well a the compilation procedure, and the used Makefile is : cc=cc opts=-Wall -fPIC $(shell pkg-config --cflags lua5.1 ) $(shell pkg-config --libs lua5.1 ) -DDRMC_WITH_FB -DUSE_DRMCAIRO $(shell pkg-config --cflags libdrm cairo freetype2 ) -DKMS_MISSING $(shell pkg-config --libs libdrm cairo freetype2 ) -DPLUGIN_DIR='"/home/laurent/Projets/Selene"' -L/home/laurent/Projets/Selene -L/home/laurent/Projets/Selene -lSelene -lpaho-mqtt3c $(shell pkg-config --cflags lua5.1 ) -lm -ldl -Wl,--export-dynamic -lpthread selene.o : selene.c SeleneLibrary/libSelene.h version.h Makefile $(cc) -c -o selene.o selene.c $(opts) ../Selene : selene.o Makefile $(cc) -o ../Selene selene.o $(opts) all: ../Selene Note : DRM, Cairo and Freetype libraries are not used in selene.c itself but in .so which are dynamically loaded (full source code can be found on https://github.com/destroyedlolo/Selene The problem : my projet is perfectly working on my Gentoo development box, as well on BananaPro/Buster but on the BananaPI/Bullseye, it's falling complaining about missing libraries : laurent@TdB:~/Projets/Selene$ ./Selene SelenitesDRMCairo/Gfx.sel ./Selene: symbol lookup error: /home/laurent/Projets/Selene/SelDRMCairo.so: undefined symbol: FT_Init_FreeType The root cause can be found with ldd On working boxes (here gentoo one) : laurent@torchwood ~ $ ldd /usr/local/bin/Selene liblua.so.5 => /usr/lib/liblua.so.5 (0xb6f23000) libm.so.6 => /lib/libm.so.6 (0xb6eb6000) libdrm.so.2 => /usr/lib/libdrm.so.2 (0xb6e96000) libcairo.so.2 => /usr/lib/libcairo.so.2 (0xb6dbe000) libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0xb6d1a000) libkms.so.1 => /usr/lib/libkms.so.1 (0xb6d07000) libpthread.so.0 => /lib/libpthread.so.0 (0xb6b7d000) libSelene.so => /usr/local/lib/libSelene.so (0xb6abc000) libpaho-mqtt3c.so.1 => /usr/local/lib/libpaho-mqtt3c.so.1 (0xb6a1a000) libdl.so.2 => /lib/libdl.so.2 (0xb6a07000) libc.so.6 => /lib/libc.so.6 (0xb68bf000) /lib/ld-linux-armhf.so.3 (0xb6f7c000) ... whereas drm cairo freetype2 and dependancies are missing on the Bullseye box laurent@TdB:~/Projets/Selene$ ldd Selene linux-vdso.so.1 (0xbef14000) liblua5.1.so.0 => /lib/arm-linux-gnueabihf/liblua5.1.so.0 (0xb6f38000) libSelene.so => /home/laurent/Projets/Selene/libSelene.so (0xb6f16000) libpaho-mqtt3c.so.1 => /lib/arm-linux-gnueabihf/libpaho-mqtt3c.so.1 (0xb6e70000) libdl.so.2 => /lib/arm-linux-gnueabihf/libdl.so.2 (0xb6e5d000) libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0xb6d5e000) libm.so.6 => /lib/arm-linux-gnueabihf/libm.so.6 (0xb6cf6000) /lib/ld-linux-armhf.so.3 (0xb6f74000) libpthread.so.0 => /lib/arm-linux-gnueabihf/libpthread.so.0 (0xb6cd0000) Does someone having any tips why libraries are not referenced under Bullseye ? Thanks Laurent
destroyedlolo Posted October 31, 2021 Author Posted October 31, 2021 I'm suspecting a change/optimisation within GCC 10. I tried to use -rdynamic which is supposed to add all symbols, including not used ones ... but it doesn't change anything. I don't find a solution and it's blocking : I'm return back to Buster for my dashboard but I'm still investigating on other board.
Werner Posted October 31, 2021 Posted October 31, 2021 There is not really a need to upgrade to Bullseye since Buster will be supported upstream for a few more years unless you need specific packages in newer versions that are not available via backports.
destroyedlolo Posted October 31, 2021 Author Posted October 31, 2021 Hi, thanks for your reply. The only package missing in Buster is libpaho-mqtt-dev so I installed it from source. Anyway, I'll investigate about this issue as one day or another, my Gentoo boxes will move to GCC 10 (and in case someone will use my tool on recent distribs).
xwiggen Posted November 2, 2021 Posted November 2, 2021 On 10/31/2021 at 12:12 PM, destroyedlolo said: I'm suspecting a change/optimisation within GCC 10. I tried to use -rdynamic which is supposed to add all symbols, including not used ones ... but it doesn't change anything. I don't find a solution and it's blocking : I'm return back to Buster for my dashboard but I'm still investigating on other board. odd that works, I would link: cc -o .. ... -L<path-to-so> -lSelDRMCairo -l<other-sel-so>-lcairo ..... as a shared object is not linked to any library but simply a position independent object file.
destroyedlolo Posted November 4, 2021 Author Posted November 4, 2021 Hello, I did a try on my Gentoo PC using GCC 10.3.0 (same code, same Makefile, ...). Libraries are correctly included : ldd Selene linux-vdso.so.1 (0x00007ffdcb866000) liblua5.3.so.0 => /usr/lib64/liblua5.3.so.0 (0x00007fa2a4efc000) libm.so.6 => /lib64/libm.so.6 (0x00007fa2a4dc8000) libdrm.so.2 => /usr/lib64/libdrm.so.2 (0x00007fa2a4db3000) libcairo.so.2 => /usr/lib64/libcairo.so.2 (0x00007fa2a4c7a000) libfreetype.so.6 => /usr/lib64/libfreetype.so.6 (0x00007fa2a4bb1000) libSelene.so => /usr/local/lib/libSelene.so (0x00007fa2a4b94000) libpaho-mqtt3c.so.1 => /usr/local/lib64/libpaho-mqtt3c.so.1 (0x00007fa2a4ada000) libdl.so.2 => /lib64/libdl.so.2 (0x00007fa2a4ad4000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fa2a4ab4000) libc.so.6 => /lib64/libc.so.6 (0x00007fa2a48fb000) /lib64/ld-linux-x86-64.so.2 (0x00007fa2a4f5b000) libpixman-1.so.0 => /usr/lib64/libpixman-1.so.0 (0x00007fa2a4857000) libfontconfig.so.1 => /usr/lib64/libfontconfig.so.1 (0x00007fa2a4810000) ... So the problem is with the way Bullseye is configured (Gcc or the linker or whatever). Note : GCC is compiled with the default options, no trick, no cheat, only optimized for my processor. Bye Laurent
destroyedlolo Posted November 10, 2021 Author Posted November 10, 2021 Hi, a test as been done on Raspbian Bullseye and it's not working as well with the same error. Options suggested by xwiggen are already included It seems the problem is related to something upstream. Any idea ?
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