{{tag>gentoo linux}} # gentoo の gcc をアップデートする これも恐ろしい作業ですよね。今回は 4.x.x から 5.x.x にアップデートします。[GCC のアップグレード](https://wiki.gentoo.org/wiki/Upgrading_GCC/ja)とか [Upgrading from gcc-4.x to gcc-5.x](https://wiki.gentoo.org/wiki/Upgrading_from_gcc-4.x_to_gcc-5.x) あたりを参考にやっていこうと思います。 ## まずは emerge しないとね とりあえず、最悪しんじゃっても被害の少ない完全に自宅使用のファイルサーバーでやってみます。 ``` # emerge -uavDN world These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild U ] sys-libs/libseccomp-2.3.2::gentoo [2.3.0::gentoo] USE="-static-libs" ABI_X86="(64) -32 (-x32)" 547 KiB [ebuild NS ] sys-devel/gcc-5.4.0-r3:5.4.0::gentoo [4.9.4:4.9.4::gentoo] USE="cxx fortran (multilib) nls nptl openmp sanitize vtv (-altivec) (-awt) -cilk -debug -doc (-fixed-point) -gcj -go -graphite (-hardened) (-jit) (-libssp) -mpx -nopie -nossp -objc -objc++ -objc-gc -regression-test -vanilla" 0 KiB [ebuild U ] sys-apps/portage-2.3.5::gentoo [2.3.3::gentoo] USE="(ipc) native-extensions xattr -build -doc -epydoc (-selinux)" LINGUAS="-ru" PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-python3_5) (-python3_6)" 912 KiB [ebuild U ] sys-devel/automake-1.15-r2:1.15::gentoo [1.15:1.15::gentoo] 1462 KiB [ebuild U ] dev-python/certifi-2017.1.23::gentoo [2016.9.26::gentoo] PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-pypy3) (-python3_5) (-python3_6)" 372 KiB [ebuild U ] sys-apps/hwids-20170328::gentoo [20150717-r1::gentoo] USE="net pci udev usb" 2002 KiB [ebuild R ] sys-apps/util-linux-2.28.2::gentoo USE="cramfs ncurses nls pam readline suid systemd udev unicode -build -caps -fdformat -kill -python (-selinux) -slang -static-libs {-test} -tty-helpers" ABI_X86="(64) -32 (-x32)" PYTHON_SINGLE_TARGET="python3_4* -python2_7* (-python3_5) (-python3_6)" PYTHON_TARGETS="python2_7 python3_4 (-python3_5) (-python3_6)" 0 KiB [ebuild U ] sys-apps/systemd-233-r1:0/2::gentoo [226-r2:0/2::gentoo] USE="acl gcrypt* kmod lz4 pam seccomp ssl (-apparmor) -audit -build -cryptsetup -curl -doc% -elfutils -gnuefi -http -idn -importd -lzma -nat -policykit -qrcode (-selinux) -sysv-utils {-test} -vanilla -xkb (-kdbus%*)" ABI_X86="(64) -32 (-x32)" 4583 KiB Total: 8 packages (6 upgrades, 1 in new slot, 1 reinstall), Size of downloads: 9874 KiB Would you like to merge these packages? [Yes/No] y ``` うどんワールドすんなよ……ってハナシもありますが、まぁｗ gcc のアップデートしたからって `emerge -e system` とかするほど狂信者でもないので。完了までうちの環境では1時間ってとこですね……ファイルサーバーは、まぁ「ファイルサーバーなのでそんなにリソース食わないだろう」ってメモリ 1GB しか割り当ててないんですが、可能ならもうちょっと盛って置いた方がいいと思います。 ……swap がヤヴァいことになりました。 {{:blog:2017:chartasdf.png?400|}} ## さて後処理ですが こんな感じに POST メッセージが出てます。 ``` * Messages for package sys-devel/gcc-5.4.0-r3: * If you have issues with packages unable to locate libstdc++.la, * then try running 'fix_libtool_files.sh' on the old gcc versions. * You might want to review the GCC upgrade guide when moving between * major versions (like 4.2 to 4.3): * https://wiki.gentoo.org/wiki/Upgrading_GCC * Messages for package sys-apps/util-linux-2.28.2: * The mesg/wall/write tools have been disabled due to USE=-tty-helpers. >>> Auto-cleaning packages... >>> No outdated packages were found on your system. * Regenerating GNU info directory index... * Processed 102 info files. * IMPORTANT: config file '/etc/logrotate.d/elog-save-summary' needs updating. * See the CONFIGURATION FILES and CONFIGURATION FILES UPDATE TOOLS * sections of the emerge man page to learn how to update config files. * IMPORTANT: 1 news items need reading for repository 'gentoo'. * Use eselect news read to view new items. * After world updates, it is important to remove obsolete packages with * emerge --depclean. Refer to `man emerge` for more information. ``` まず `* IMPORTANT: config file '/etc/logrotate.d/elog-save-summary' needs updating.` に `dispatch-conf` で適宜さっさと対応してしまいます。 次は wiki に書いてあるとおりに `gcc-config` します。 ``` # gcc-config -l [1] x86_64-pc-linux-gnu-4.9.4 * [2] x86_64-pc-linux-gnu-5.4.0 # gcc-config 2 * Switching native-compiler to x86_64-pc-linux-gnu-5.4.0 ... >>> Regenerating /etc/ld.so.cache... [ ok ] * If you intend to use the gcc from the new profile in an already * running shell, please remember to do: * . /etc/profile # env-update && . /etc/profile >>> Regenerating /etc/ld.so.cache... # gcc-config -l [1] x86_64-pc-linux-gnu-4.9.4 [2] x86_64-pc-linux-gnu-5.4.0 * ``` ちゃんと 5.x.x に `*` が付いてます。それでは wiki に従って libtool を emerge します。 ``` # emerge -av --oneshot libtool These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] sys-devel/libtool-2.4.6-r3:2::gentoo USE="-vanilla" 951 KiB Total: 1 package (1 reinstall), Size of downloads: 951 KiB Would you like to merge these packages? [Yes/No] y ``` ここはまぁ、特に問題もなくサックリと。 それから ` * IMPORTANT: 1 news items need reading for repository 'gentoo'.` に対応しましょうか。 `eselect news read` で読んでみます。 ``` # eselect news read 2015-10-22-gcc-5-new-c++11-abi Title GCC 5 Defaults to the New C++11 ABI Author Mike Frysinger Posted 2015-10-22 Revision 2 GCC 5 uses the new C++ ABI by default. When building new code, you might run into link time errors that include lines similar to: ...: undefined reference to '_ZNSt6chrono12steady_clock3nowEv@GLIBCXX_3.4.17' Or you might see linkage failures with "std::__cxx11::string" in the output. These are signs that you need to rebuild packages using the new C++ ABI. You can quickly do so by using revdep-rebuild (from gentoolkit). For gentoolkit-0.3.1 or higher: # revdep-rebuild --library 'libstdc++.so.6' -- --exclude gcc For previous versions of gentoolkit: # revdep-rebuild --library 'libstdc\+\+\.so\.6' -- --exclude gcc For more details, feel free to peruse: https://developerblog.redhat.com/2015/02/05/gcc5-and-the-c11-abi/ https://blogs.gentoo.org/blueness/2015/03/10/the-c11-abi-incompatibility-problem-in-gentoo/ ``` ふむ…… ``` # emerge -pv gentoolkit These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] app-portage/gentoolkit-0.3.3::gentoo PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-python3_5)" 3123 KiB Total: 1 package (1 reinstall), Size of downloads: 3123 KiB ``` うちの gentoolkit は 0.3.3 なので、上のヤツを叩けば良いみたいですね。とりあえず `-pv` 付けて叩いてみます。 ``` # revdep-rebuild -pv --library 'libstdc++.so.6' -- --exclude gcc * This is the new python coded version * Please report any bugs found using it. * The original revdep-rebuild script is installed as revdep-rebuild.sh * Please file bugs at: https://bugs.gentoo.org/ * Collecting system binaries and libraries * Collecting dynamic linking informations * Scanning files * Checking dynamic linking consistency * Files that depend on: libstdc++.so.6 (32 bits) * /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.4/32/libasan.so.1.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.4/32/libubsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/32/libasan.so.2.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/32/libubsan.so.0.0.0 * Files that depend on: libstdc++.so.6 (64 bits) * /sbin/pdata_tools * /usr/bin/DllPlugInTester * /usr/bin/addftinfo * /usr/bin/ccmake * /usr/bin/cmake * /usr/bin/cpack * /usr/bin/ctest * /usr/bin/eqn * /usr/bin/gperf * /usr/bin/grn ～(略)～ !!! Dependant orphaned files: No installed package was found for the following: * /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.4/libasan.so.1.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.4/32/libubsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.4/liblsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/libtsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/libcc1.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/liblsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.4/libubsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/32/libubsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/32/libasan.so.2.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/libubsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.4/32/libasan.so.1.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.4/libtsan.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/plugin/libcc1plugin.so.0.0.0 * /usr/lib64/gcc/x86_64-pc-linux-gnu/5.4.0/libasan.so.2.0.0 emerge --exclude gcc --pretend --verbose --oneshot --complete-graph=y sys-block/ thin-provisioning-tools:0 sys-apps/groff:0 dev-util/gperf:0 dev-python/subunit:0 net-libs/gnutls:0 sys-apps/gptfdisk:0 dev-util/cppunit:0 sys-libs/ncurses:0/6 d ev-util/cmake:0 dev-libs/boost:0/1.62.0 sys-libs/db:5.3 dev-libs/gmp:0/10.4 app- text/openjade:0 dev-libs/libpcre:3 sys-devel/gettext:0 app-text/opensp:0 These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] sys-libs/ncurses-6.0-r1:0/6::gentoo USE="cxx unicode -ada -deb ug -doc -gpm -minimal -profile -static-libs {-test} -threads -tinfo -trace" ABI_ X86="(64) -32 (-x32)" 0 KiB [ebuild R ] dev-util/gperf-3.0.4::gentoo 0 KiB [ebuild R ] dev-util/cppunit-1.13.2-r2::gentoo USE="-doc -examples -static -libs" ABI_X86="(64) -32 (-x32)" 0 KiB [ebuild R ] dev-libs/boost-1.62.0-r1:0/1.62.0::gentoo USE="nls threads -context -debug -doc -icu -mpi -python -static-libs -tools" ABI_X86="(64) -32 (-x32)" PYTHON_TARGETS="python2_7 python3_4 (-python3_5)" 0 KiB [ebuild R ] dev-libs/gmp-6.1.0:0/10.4::gentoo USE="asm cxx -doc -pgo -static-libs" ABI_X86="(64) -32 (-x32)" 0 KiB [ebuild R ] sys-devel/gettext-0.19.8.1::gentoo USE="acl cxx ncurses nls openmp -cvs -doc -emacs -git -java -static-libs" ABI_X86="(64) -32 (-x32)" 0 KiB [ebuild R ] app-text/opensp-1.5.2-r3::gentoo USE="nls -doc -static-libs {-test}" 0 KiB [ebuild R ] dev-libs/libpcre-8.40-r1:3::gentoo USE="bzip2 cxx jit readline recursion-limit (unicode) zlib -libedit -pcre16 -pcre32 -static-libs" ABI_X86="(64) -32 (-x32)" 0 KiB [ebuild R ] sys-apps/gptfdisk-1.0.1::gentoo USE="ncurses -static" 191 KiB [ebuild R ] dev-util/cmake-3.7.2::gentoo USE="ncurses -doc -emacs -qt5 -system-jsoncpp {-test}" 0 KiB [ebuild R ] sys-libs/db-5.3.28-r2:5.3::gentoo USE="cxx -doc -examples -java -tcl {-test}" ABI_X86="(64) -32 (-x32)" 0 KiB [ebuild R ] sys-block/thin-provisioning-tools-0.4.1::gentoo USE="{-test}" 0 KiB [ebuild R ] sys-apps/groff-1.22.2::gentoo USE="-X -examples" L10N="ja" 0 KiB [ebuild R ] net-libs/gnutls-3.3.26::gentoo USE="crywrap cxx nls openssl zlib -dane -doc -examples -guile -pkcs11 -static-libs {-test}" ABI_X86="(64) -32 (-x32)" LINGUAS="-cs -de -en -fi -fr -it -ms -nl -pl -sv -uk -vi -zh_CN" 0 KiB [ebuild R ] app-text/openjade-1.3.2-r6::gentoo USE="-static-libs" 0 KiB [ebuild R ] dev-python/subunit-1.2.0-r1::gentoo USE="-static-libs {-test}" ABI_X86="(64) -32 (-x32)" PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-pypy3) (-python3_5) (-python3_6)" 0 KiB Total: 16 packages (16 reinstalls), Size of downloads: 191 KiB ``` ……よくわからないですけど、wiki にも条件付きで実行する必要がある((今回は対象外のはずなんですけどね……))と書いてありますし、やっといた方がよさそうですね。`-pv` 外して実行します。 ``` # revdep-rebuild --library 'libstdc++.so.6' -- --exclude gcc ``` 環境次第ですが、この vm では `dev-libs/boost` が結構大物なのでこれも時間がかかりました…… ## お掃除します 古い gcc を消してしまいましょう。 ``` # emerge -pv --depclean ～(略)～ >>> These are the packages that would be unmerged: !!! 'app-editors/nano' (virtual/editor) is part of your system profile. !!! Unmerging it may be damaging to your system. app-editors/nano selected: 2.6.3 protected: none omitted: none sys-devel/gcc selected: 4.9.4 protected: none omitted: 5.4.0-r3 sys-kernel/gentoo-sources selected: 4.9.6-r1 protected: none omitted: 4.9.16 All selected packages: =sys-devel/gcc-4.9.4 =app-editors/nano-2.6.3 =sys-kernel/gentoo-sources-4.9.6-r1 >>> 'Selected' packages are slated for removal. >>> 'Protected' and 'omitted' packages will not be removed. Packages installed: 270 Packages in world: 22 Packages in system: 44 Required packages: 267 Number to remove: 3 ``` 5.x.x 系の gcc が omitted になっているのを確認して…… ``` # emerge -av --depclean gcc Calculating dependencies... done! sys-devel/gcc-5.4.0-r3 pulled in by: @system requires sys-devel/gcc sys-libs/glibc-2.23-r3 requires >=sys-devel/gcc-4.7 >>> Calculating removal order... >>> These are the packages that would be unmerged: sys-devel/gcc selected: 4.9.4 protected: none omitted: 5.4.0-r3 All selected packages: =sys-devel/gcc-4.9.4 >>> 'Selected' packages are slated for removal. >>> 'Protected' and 'omitted' packages will not be removed. Would you like to unmerge these packages? [Yes/No] y ``` こんな感じかな。2時間ぐらいかかるからチマチマ他の vm にも適用していこう……