Package: libucx0 Version: 1.11.2~rc1-2 Severity: minor User: debian...@lists.debian.org Usertags: undefined-symbol adequate File: /usr/lib/x86_64-linux-gnu/libucm.so.0.0.0
libucm.so needs to link with -lucs, see the output of adequate, symtree and objdump below. I detected this on amd64 but the Debian build log scanner also detected dpkg-buildpackage complaining about it on other architectures, see the w3m/getbuildlog output below. I filed this bug at severity minor since I'm not sure if there are any programs using the libucm.so lib and if they already use the libucs.so symbols and link with the -lucs flag or not. This bug report brought to you by adequate: https://bonedaddy.net/pabs3/log/2013/02/23/inadequate-software/ $ lib=/usr/lib/x86_64-linux-gnu/libucm.so.0.0.0 $ link=/usr/lib/x86_64-linux-gnu/libucs.so.0.0.0 $ pkg="$(dpkg-query --search "$lib" | sed s/:.*//)" $ src="$(grep-aptavail --no-field-names --show-field Source:Package --field Package --exact-match --pattern "$pkg" | sed 's/ .*//')" $ first="$(printf '%s' "$src" | head --bytes 1)" $ adequate "$pkg" | grep -F "$lib" libucx0:amd64: undefined-symbol /usr/lib/x86_64-linux-gnu/libucm.so.0.0.0 => ucs_load_modules $ man adequate | grep -A4 undefined-symbol undefined-symbol The symbol has not been found in the libraries linked with the binary. Either the binary either needs to be linked with an additional shared library, or the dependency on the shared library package that provides this symbol is too weak. References: Debian Policy §3.5, §8.6, §10.2. $ lddtree "$lib" libucm.so.0.0.0 => /usr/lib/x86_64-linux-gnu/libucm.so.0.0.0 (interpreter => none) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 ld-linux-x86-64.so.2 => /lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 $ symtree "$lib" /usr/lib/x86_64-linux-gnu/libucm.so.0.0.0 libdl.so.2 => dlinfo,dlsym,dladdr,dlopen,dlerror libpthread.so.0 => pthread_mutex_lock,pthread_rwlock_rdlock,close,pthread_spin_destroy,pthread_mutex_unlock,pthread_spin_init,pthread_spin_unlock,pthread_rwlock_wrlock,read,pthread_rwlock_unlock,write,pthread_spin_lock,lseek,open,__errno_location libc.so.6 => shmget,strncmp,__free_hook,strrchr,shmat,__isoc99_sscanf,dl_iterate_phdr,strncpy,time,__stack_chk_fail,shmctl,pthread_mutex_lock,shmdt,realloc,abort,getpid,sbrk,strtol,mmap,sched_yield,strlen,brk,memset,strstr,__errno_location,read,__fprintf_chk,pthread_mutex_unlock,putenv,__curbrk,__malloc_hook,lseek,memcpy,memcpy,mprotect,__vsnprintf_chk,malloc,malloc_usable_size,__ctype_b_loc,getenv,stderr,munmap,gethostbyname,__snprintf_chk,getlogin,mremap,malloc_trim,__realloc_hook,gethostname,gettimeofday,madvise,close,open,strerror_r,strchr,__getpagesize,__cxa_finalize,syscall,__sprintf_chk,__xstat,pthread_self,strcmp,strerror,write,sysconf,__memalign_hook,free WEAK => _ITM_deregisterTMCloneTable,__gmon_start__,_ITM_registerTMCloneTable UNRESOLVED => ucs_load_modules $ objdump -T "$link" | grep -E " ($(symtree "$lib" | sed -n 's/ UNRESOLVED => //p' | tr , '|'))$" 000000000002c170 g DF .text 0000000000000439 Base ucs_load_modules $ w3m -dump https://qa.debian.org/bls/packages/"$first"/"$src".html | grep -A2 symbol • W shlibs-symbol-not-found (amd64, arm64, ppc64el) Found 1 issues. $ w3m -dump https://qa.debian.org/bls/bytag/W-shlibs-symbol-not-found.html | grep -A12 description description The build logs contains a line like dpkg-shlibdeps: warning: symbol NAME used by BINARY found in none of the libraries. Possible reasons: • A library not linked with a library needed. While this can sometimes make sense in order to allow the using binary to decide which of multiple available implementations to use, it means that dependency information might be incorrect, optimisations like prelinking might fail and stuff like that. $ chronic getbuildlog "$src" last $ grep 'dpkg-shlibdeps: warning: symbol .* used by .* found in none of the libraries' ./*.log ./ucx_1.11.2~rc1-2_amd64.log:dpkg-shlibdeps: warning: symbol ucs_load_modules used by debian/libucx0/usr/lib/x86_64-linux-gnu/libucm.so.0.0.0 found in none of the libraries ./ucx_1.11.2~rc1-2_arm64.log:dpkg-shlibdeps: warning: symbol ucs_load_modules used by debian/libucx0/usr/lib/aarch64-linux-gnu/libucm.so.0.0.0 found in none of the libraries ./ucx_1.11.2~rc1-2_ppc64el.log:dpkg-shlibdeps: warning: symbol ucs_load_modules used by debian/libucx0/usr/lib/powerpc64le-linux-gnu/libucm.so.0.0.0 found in none of the libraries -- System Information: Debian Release: bookworm/sid APT prefers testing-debug APT policy: (900, 'testing-debug'), (900, 'testing'), (800, 'unstable-debug'), (800, 'unstable'), (790, 'buildd-unstable'), (700, 'experimental-debug'), (700, 'experimental'), (690, 'buildd-experimental') Architecture: amd64 (x86_64) Kernel: Linux 5.14.0-1-amd64 (SMP w/8 CPU threads) Locale: LANG=en_AU.utf8, LC_CTYPE=en_AU.utf8 (charmap=UTF-8), LANGUAGE=en_AU:en Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages libucx0:amd64 depends on: ii ibverbs-providers 36.0-1 ii libc6 2.32-4 ii libibverbs1 36.0-1 ii libnuma1 2.0.14-3 ii librdmacm1 36.0-1 libucx0:amd64 recommends no packages. libucx0:amd64 suggests no packages. -- no debconf information -- bye, pabs https://wiki.debian.org/PaulWise
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