Alan >> dileks@iniza:~/src/linux/git$ git log --oneline -1 >> 51d1b1d42841c557dabde5b140ae20774591e6dc >> 51d1b1d42841 libbpf: Introduce kflag for type_tags and decl_tags in BTF >> >> Add the following functions to libbpf API: >> * btf__add_type_attr() >> * btf__add_decl_attr() >> >> dileks@iniza:~/src/linux/git$ git describe --contains >> 51d1b1d42841c557dabde5b140ae20774591e6dc >> v6.15-rc1~98^2~87^2~5 >> >> Currently, I use Debian-kernel v6.12.22 and want to build a selfmade >> v6.12.24 (when it is released). >> >> If you need further information, please let me know. >> >> Best Thanks, >> -Sedat- >> >> P.S.: My investigations >> >> [ DEBIAN PAHOLE ] >> >> Debian/unstable AMD64 ships on my request pahole version 1.30-1. >> This version was built against libbpf-dev version (1:1.5.0-2) >> >> Link: https://packages.debian.org/sid/pahole >> Link: https://packages.debian.org/sid/libbpf-dev >> Link: https://bugs.debian.org/1103000 >> >> >> [ SELFMADE PAHOLE ] >> >> Prereq: libbpf API version >= 1.6.0 >> >> dileks@iniza:~/src/pahole/git$ git describe >> v1.29-16-gb45268b74da1 >> >> dileks@iniza:~/src/pahole/git$ git log --oneline -1 >> b45268b74da1 (HEAD -> pahole-v1.30, tag: v1.30, origin/next, >> origin/master, origin/HEAD, master) Prep 1.30 >> >> root# /opt/pahole/bin/pahole --version >> v1.30 >> >> INFO: git describe should report v1.30 >> >> >> [ BUILD INSTRUCTIONS ] >> >> VER="1.30" >> PREFIX="/opt/pahole-$VER" >> PREFIX_CMAKE_OPTS="-DCMAKE_INSTALL_PREFIX=$PREFIX" >> >> echo $PREFIX_CMAKE_OPTS >> >> cd .. >> mkdir build >> cd build >> >> # NOTE: See upstream commit "CMakeList.txt: Respect CMAKE_INSTALL_LIBDIR" >> ##cmake $PREFIX_CMAKE_OPTS -D__LIB=lib ../git >> LC_ALL=C.UTF-8 cmake $PREFIX_CMAKE_OPTS ../git >> make >> sudo make install >> >> NOTE: Do NOT forget to run `ldconfig` as root (see below). >> >> >> [ LDCONFIG ] >> >> File: /etc/ld.so.conf.d/a-local-pahole.conf >> >> # pahole lib configuration >> /opt/pahole/lib >> >> root# cd /opt >> root# ln -sf pahole-$VER pahole >> root# ldconfig >> root# ldconfig --print-cache | grep pahole >> >> >> [ PAHOLE - CMAKE LOG (LIBBPF) ] >> >> [...] >> -- Submodule update >> Submodule 'lib/bpf' (https://github.com/libbpf/libbpf) registered for >> path 'lib/bpf' >> Cloning into '/home/dileks/src/pahole/git/lib/bpf'... >> Submodule path 'lib/bpf': checked out '42a6ef63161a8dc4288172b27f3870e50b3606f7' >> -- Submodule update - done >> >> Link: https://web.git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?h=v1.30&id=fe2dcd28ba9d348744ee93fed43cbed5dc0d6a43 >> >> >> [ BTF FEATURES ] >> >> root# /opt/pahole/bin/pahole --usage | grep feature >> [--btf_encode_force] [--btf_features=FEATURE_LIST] >> [--btf_features_strict=FEATURE_LIST_STRICT] [--btf_gen_all] >> [--skip_missing] [--sort] [--structs] [--supported_btf_features] >> >> NOTE: --btf_feature*s* (all options plural) VS. commit 40e82f5be9a7 >> ("pahole: Introduce --btf_feature=attributes") >> >> root# /opt/pahole/bin/pahole --supported_btf_features >> encode_force,var,float,decl_tag,type_tag,enum64,optimized_func,consistent_func,decl_tag_kfuncs,reproducible_build,distilled_base,global_var,attributes >> >> NOTE: Supported = attributes >> >> >> [ LIBBPF API VERSION >= 1.6.0 ] >> >> Link: https://web.git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?h=v1.30&id=fe2dcd28ba9d348744ee93fed43cbed5dc0d6a43 >> >> commit fe2dcd28ba9d348744ee93fed43cbed5dc0d6a43 ("pahole: Sync with >> libbpf mainline") >> >> Pull recently added libbpf API functions: >> * btf__add_decl_attr() >> * btf__add_type_attr() >> >> root# llvm-dwarfdump-19 /opt/pahole/bin/pahole | grep btf | grep add >> DW_AT_name ("btf__add_type_attr") >> DW_AT_name ("btf__add_enum64") >> >> >> [ pahole.git - lib/bpf/src/libbpf.map ] >> >> LIBBPF_1.6.0 { >> global: >> bpf_linker__add_buf; >> bpf_linker__add_fd; >> bpf_linker__new_fd; >> btf__add_decl_attr; >> btf__add_type_attr; >> } LIBBPF_1.5.0; >> >> -EOT-
