- Solid Run CuBox (http://www.solid-run.com) 1 GB version, ARMv7 - Hardened Sources 3.8 with PAX/GrSecurity enabled doesn't build due to GCC Plugin Support missing - error message: cubox linux # make -j2 zImage HOSTLD scripts/kconfig/conf scripts/kconfig/conf --silentoldconfig Kconfig # # configuration written to .config # Makefile:629: *** Your gcc installation does not support plugins. If the necessary headers for plugin support are missing, they should be installed. On Debian, apt-get install gcc-<ver>-plugin-dev. If you choose to ignore this error and lessen the improvements provided by this patch, re-run make with the DISABLE_PAX_PLUGINS=y argument.. Schluss. - installed gcc: cubox linux # emerge -1pav gcc These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] sys-devel/gcc-4.6.3:4.6 USE="cxx hardened mudflap nls nptl openmp (-altivec) -doc (-fixed-point) -fortran -gcj -graphite -gtk (-libssp) (-multilib) -multislot -nopie -nossp -objc -objc++ -objc-gc {-test} -vanilla" 0 kB Total: 1 package (1 reinstall), Size of downloads: 0 kB cubox linux # gcc-config -l [1] armv7a-hardfloat-linux-gnueabi-4.6.3 * [2] armv7a-hardfloat-linux-gnueabi-4.6.3-hardenednopie [3] armv7a-hardfloat-linux-gnueabi-4.6.3-hardenednopiessp [4] armv7a-hardfloat-linux-gnueabi-4.6.3-hardenednossp [5] armv7a-hardfloat-linux-gnueabi-4.6.3-vanilla -used profile: cubox linux # eselect profile list Available profile symlink targets: [1] default/linux/arm/13.0 [2] default/linux/arm/13.0/desktop [3] default/linux/arm/13.0/desktop/gnome [4] default/linux/arm/13.0/desktop/kde [5] default/linux/arm/13.0/developer [6] default/linux/arm/13.0/armv4 [7] default/linux/arm/13.0/armv4/desktop [8] default/linux/arm/13.0/armv4/desktop/gnome [9] default/linux/arm/13.0/armv4/desktop/kde [10] default/linux/arm/13.0/armv4/developer [11] default/linux/arm/13.0/armv4t [12] default/linux/arm/13.0/armv4t/desktop [13] default/linux/arm/13.0/armv4t/desktop/gnome [14] default/linux/arm/13.0/armv4t/desktop/kde [15] default/linux/arm/13.0/armv4t/developer [16] default/linux/arm/13.0/armv5te [17] default/linux/arm/13.0/armv5te/desktop [18] default/linux/arm/13.0/armv5te/desktop/gnome [19] default/linux/arm/13.0/armv5te/desktop/kde [20] default/linux/arm/13.0/armv5te/developer [21] default/linux/arm/13.0/armv6j [22] default/linux/arm/13.0/armv6j/desktop [23] default/linux/arm/13.0/armv6j/desktop/gnome [24] default/linux/arm/13.0/armv6j/desktop/kde [25] default/linux/arm/13.0/armv6j/developer [26] default/linux/arm/13.0/armv7a [27] default/linux/arm/13.0/armv7a/desktop [28] default/linux/arm/13.0/armv7a/desktop/gnome [29] default/linux/arm/13.0/armv7a/desktop/kde [30] default/linux/arm/13.0/armv7a/developer [31] hardened/linux/arm/armv7a * [32] hardened/linux/uclibc/arm/armv7a - emerge info: cubox linux # emerge --info Portage 2.1.11.52 (hardened/linux/arm/armv7a, gcc-4.6.3, glibc-2.15-r3, 3.8.0-v4 armv7l) ================================================================= System uname: Linux-3.8.0-v4-armv7l-with-gentoo-2.1 KiB Mem: 1031440 total, 860076 free KiB Swap: 1000444 total, 1000444 free Timestamp of tree: Mon, 04 Mar 2013 00:45:01 +0000 ld GNU ld (GNU Binutils) 2.22 distcc 3.1 armv7a-hardfloat-linux-gnueabi [enabled] app-shells/bash: 4.2_p37 dev-lang/python: 2.7.3-r2, 3.2.3 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.1-r1 sys-apps/openrc: 0.11.8 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.69 sys-devel/automake: 1.11.6 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.6.3 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.6 (virtual/os-headers) sys-libs/glibc: 2.15-r3 Repositories: gentoo ACCEPT_KEYWORDS="arm" ACCEPT_LICENSE="*" CBUILD="armv7a-hardfloat-linux-gnueabi" CFLAGS="-O2 -pipe -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard" CHOST="armv7a-hardfloat-linux-gnueabi" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps=y" FCFLAGS="-O2 -pipe -march=armv7-a" FEATURES="assume-digests binpkg-logs config-protect-if-modified distcc distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch webrsync-gpg" FFLAGS="-O2 -pipe -march=armv7-a" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="de_DE.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="" USE="acl arm berkdb bzip2 cli cracklib crypt cxx dri gdbm gpm hardened iconv ipv6 modules mudflap ncurses nls nptl openmp pam pax_kernel pcre pic readline session ssl tcpd unicode urandom zlib" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="de en" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="exynos fbdev omap omapfb dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON - currently i use the vanilla kernel 3.8.0 (3.8.2) - installed hardened sources: cubox linux # emerge -1pav hardened-sources These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ~] sys-kernel/hardened-sources-3.8.0-r1:3.8.0-r1 USE="-build -deblob -symlink" 0 kB Total: 1 package (1 reinstall), Size of downloads: 0 kB - vanilla + hardened kernel config is attached - kernel compile procedure, native: make distclean make menuconfig make -j2 zImage make -j2 dtbs cd arch/arm/boot cat zImage dts/dove-cubox.dtb > zImage.cubox mkimage -A arm -O linux -C none -T kernel -a 0x00008000 -e 0x00008000 -n none -d zImage.cubox uImage cd ../../.. make -j2 modules make -j2 modules_install cp arch/arm/boot/uImage /boot/ - kernel compilation using distcc doesn't work, so i can only compile the kernel native (about 2 hours) or via cross compile on my core i7 (up to 3-5 minutes) Reproducible: Always
Created attachment 340980 [details] kernel-3.8.config.vanilla
Created attachment 340982 [details] kernel-3.8.config.hardened
wow! This is brave :) I don't know why plugin support would fail on arm while the equivalent in amd64 or x86 is fine. Is it possible that arm gcc doesn't have plugin support yet?
(In reply to comment #3) > Is it possible that arm gcc doesn't have plugin support yet? the PaX gcc plugins work fine on arm (i test them with a cross compiler) but there's indeed a problem with the gcc plugin headers installation in that on arm (or maybe just on a cross compiler) a few needed files don't get installed and one has to manually copy them from the gcc source tree to the installed plugin headers. this is not a gentoo specific problem, it happens with upstream as well. i guess one of these days i'll have to open a bug about this, in the meantime either disable the gcc plugins in PaX or keep compiling a plugin by hand and you'll see the missing includes that you can then copy from the gcc source tree.
I hit the same problem with gcc 4.6.3 and 4.7.2 on the Raspberry Pi (armv6 hardfloat). Following pipacs suggestions I've copied the missing files, which turned out to be arm-cores.def and vxworks-dummy.h from the gcc source and now the kernel is compiling... :)
I can also confirm that copying these two files fixes the issue. It also seems to be fixed upstream in gcc 4.8.x Further reference is for example found here: http://gcc.gnu.org/ml/gcc-patches/2013-03/msg00225.html
Looks like this is fixed.
