From what I understand changing gcc with gcc-config fails to change file containing information which compiler to use and with which specifications. So for all purposes it basically fails. Reproducible: Always Steps to Reproduce: root@voidwalker $ gcc-config 2 * Switching native-compiler to x86_64-pc-linux-gnu-4.5.3-hardenednopie ... /usr/bin/gcc-config: line 268: cannot create temp file for here-document: Permission denied tac: failed to create temporary file in `/tmp': Permission denied rm: cannot remove `/etc/env.d/gcc/.NATIVE': Permission denied ln: cannot remove `/etc/env.d/gcc/.NATIVE': Permission denied >>> Regenerating /etc/ld.so.cache... /sbin/ldconfig: /opt/intel/Compiler/11.1/072/idb/lib/intel64/libxerces-c.so.27 is not a symbolic link [ ok ] Actual Results: Compiler and/or specifications are unchanged Also some binaries doesn't work after this, example error: mplayer2: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory Expected Results: It works. ===== setenforce 1 Jan 20 01:30:52 localhost kernel: [93886.017970] type=1400 audit(1327019452.217:44641): avc: denied { getattr } for pid=9592 comm="gcc-config" name="/" dev=dm-0 ino=2 scontext=staff_u:sysadm_r:gcc_config_t tcontext=system_u:object_r:fs_t tclass=filesystem Jan 20 01:30:52 localhost kernel: [93886.018070] type=1400 audit(1327019452.217:44642): avc: denied { write } for pid=9592 comm="gcc-config" name="tmp" dev=dm-0 ino=4169729 scontext=staff_u:sysadm_r:gcc_config_t tcontext=system_u:object_r:tmp_t tclass=dir Jan 20 01:30:52 localhost kernel: [93886.021512] type=1400 audit(1327019452.220:44643): avc: denied { write } for pid=9595 comm="tac" name="tmp" dev=dm-0 ino=4169729 scontext=staff_u:sysadm_r:gcc_config_t tcontext=system_u:object_r:tmp_t tclass=dir Jan 20 01:30:52 localhost kernel: [93886.029062] type=1400 audit(1327019452.227:44644): avc: denied { unlink } for pid=9597 comm="rm" name=".NATIVE" dev=dm-0 ino=7414236 scontext=staff_u:sysadm_r:gcc_config_t tcontext=staff_u:object_r:etc_t tclass=lnk_file Jan 20 01:30:52 localhost kernel: [93886.031278] type=1400 audit(1327019452.230:44645): avc: denied { unlink } for pid=9598 comm="ln" name=".NATIVE" dev=dm-0 ino=7414236 scontext=staff_u:sysadm_r:gcc_config_t tcontext=staff_u:object_r:etc_t tclass=lnk_file Jan 20 01:30:53 localhost kernel: [93886.811471] type=1400 audit(1327019453.010:44646): avc: denied { read write } for pid=9679 comm="ldconfig" path="/var/lib/portage/config" dev=dm-0 ino=25468968 scontext=staff_u:sysadm_r:ldconfig_t tcontext=staff_u:object_r:portage_cache_t tclass=file ===== setenforce 0 Jan 20 01:31:18 localhost kernel: [93912.165240] type=1400 audit(1327019478.414:44648): avc: denied { write } for pid=9729 comm="gcc-config" name="tmp" dev=dm-0 ino=4169729 scontext=staff_u:sysadm_r:gcc_config_t tcontext=system_u:object_r:tmp_t tclass=dir Jan 20 01:31:18 localhost kernel: [93912.165279] type=1400 audit(1327019478.414:44649): avc: denied { getattr } for pid=9729 comm="gcc-config" name="/" dev=dm-0 ino=2 scontext=staff_u:sysadm_r:gcc_config_t tcontext=system_u:object_r:fs_t tclass=filesystem Jan 20 01:31:18 localhost kernel: [93912.165372] type=1400 audit(1327019478.414:44650): avc: denied { add_name } for pid=9729 comm="gcc-config" name="sh-thd-1327011797" scontext=staff_u:sysadm_r:gcc_config_t tcontext=system_u:object_r:tmp_t tclass=dir Jan 20 01:31:18 localhost kernel: [93912.165447] type=1400 audit(1327019478.414:44651): avc: denied { create } for pid=9729 comm="gcc-config" name="sh-thd-1327011797" scontext=staff_u:sysadm_r:gcc_config_t tcontext=staff_u:object_r:tmp_t tclass=file Jan 20 01:31:18 localhost kernel: [93912.165526] type=1400 audit(1327019478.414:44652): avc: denied { write open } for pid=9729 comm="gcc-config" name="sh-thd-1327011797" dev=dm-0 ino=4169750 scontext=staff_u:sysadm_r:gcc_config_t tcontext=staff_u:object_r:tmp_t tclass=file Jan 20 01:31:18 localhost kernel: [93912.165787] type=1400 audit(1327019478.414:44653): avc: denied { getattr } for pid=9729 comm="gcc-config" path="/tmp/sh-thd-1327011797" dev=dm-0 ino=4169750 scontext=staff_u:sysadm_r:gcc_config_t tcontext=staff_u:object_r:tmp_t tclass=file Jan 20 01:31:18 localhost kernel: [93912.165903] type=1400 audit(1327019478.414:44654): avc: denied { read } for pid=9729 comm="gcc-config" name="sh-thd-1327011797" dev=dm-0 ino=4169750 scontext=staff_u:sysadm_r:gcc_config_t tcontext=staff_u:object_r:tmp_t tclass=file Jan 20 01:31:18 localhost kernel: [93912.165982] type=1400 audit(1327019478.417:44655): avc: denied { remove_name } for pid=9729 comm="gcc-config" name="sh-thd-1327011797" dev=dm-0 ino=4169750 scontext=staff_u:sysadm_r:gcc_config_t tcontext=system_u:object_r:tmp_t tclass=dir Jan 20 01:31:18 localhost kernel: [93912.166009] type=1400 audit(1327019478.417:44656): avc: denied { unlink } for pid=9729 comm="gcc-config" name="sh-thd-1327011797" dev=dm-0 ino=4169750 scontext=staff_u:sysadm_r:gcc_config_t tcontext=staff_u:object_r:tmp_t tclass=file Portage 2.1.10.44 (hardened/linux/amd64/selinux, gcc-4.5.3, glibc-2.14.1-r2, 3.1.8-hardened x86_64) ================================================================= System uname: Linux-3.1.8-hardened-x86_64-Intel-R-_Core-TM-_i3_CPU_M_350_@_2.27GHz-with-gentoo-2.1 Timestamp of tree: Tue, 17 Jan 2012 18:00:01 +0000 app-shells/bash: 4.2_p20 dev-lang/python: 2.7.2-r3, 3.2.2 dev-util/cmake: 2.8.6-r4 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.1 sys-apps/openrc: 0.9.8.1 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.9.6-r3, 1.11.2 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.5.3-r2, 4.7.0_alpha20120114::hardened-dev sys-devel/gcc-config: 1.5-r2 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r3 sys-kernel/linux-headers: 3.2 (virtual/os-headers) sys-libs/glibc: 2.14.1-r2 Repositories: gentoo hardened-dev x11 my_local_overlay ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA Intel-SDP PUEL" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks ebuild-locks fixlafiles news parallel-fetch protect-owned sandbox selinux sesandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j4" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/hardened-development /var/lib/layman/x11 /usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X acpi alsa amd64 berkdb bzip2 cli cracklib crypt cxx dbus dri gdbm gif gpm hardened iconv jpeg justify mmx modules mudflap multilib ncurses nls nptl nptlonly open_perms opengl openmp pam pax_kernel pcre png pppd readline selinux session sse sse2 ssl ssse3 sysfs system-sqlite tcpd tiff truetype udev unicode urandom usb v4l vim-syntax xinerama xorg zlib zsh-completion" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" 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="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 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="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby19" USERLAND="GNU" VIDEO_CARDS="nouveau" 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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Will be fixed in r12
In hardened-dev overlay
It works
In main tree, ~arch'ed
Stabilized