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[SOLVED] Compiler cannot create executables

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Jaglover
Watchman

Joined: 29 May 2005
Posts: 8291
Location: Saint Amant, Acadiana

Posted: Wed Dec 04, 2013 9:03 pm Post subject:

OK, here are the links, pick what you need, let me know if you need something else. gcc-4.7.3-r1 USE="cxx fortran mudflap (multilib) nptl openm" gcc-4.8.2 USE="cxx fortran graphite lto mudflap (multilib) nptl openmp" glibc-2.17 USE="(multilib)" gcc-config-1.8 _________________ My Gentoo installation notes. Please learn how to denote units correctly! Last edited by Jaglover on Wed Dec 04, 2013 9:07 pm; edited 1 time in total

eleanor
l33t
l33t

Joined: 01 Nov 2004
Posts: 666

Posted: Wed Dec 04, 2013 9:05 pm Post subject:

Thank you, I'll try them out now.

Neddy: I switched back to my gcc 4.5.4, but eix isn't working anymore:

Quote:

# eix
eix: /lib64/libc.so.6: version `GLIBC_2.17' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/libstdc++.so.6)

Why is it picking up 4.7.3 if I switched back to 4.5.4 gcc ? Update: unmerging the package helped, because it run the fix it tool.

eleanor
l33t
l33t

Joined: 01 Nov 2004
Posts: 666

Posted: Wed Dec 04, 2013 9:14 pm Post subject:

Jaglover,

Seems to me that your gcc works:

Quote:

# emerge -K =gcc-4.7.3-r1 [1052/94804]
Calculating dependencies... done!

>>> Emerging binary (1 of 1) sys-devel/gcc-4.7.3-r1
* gcc-4.7.3-r1.tbz2 size ;-)

... [ ok ]
>>> Extracting info
>>> Extracting sys-devel/gcc-4.7.3-r1

>>> Installing (1 of 1) sys-devel/gcc-4.7.3-r1
* The current gcc config appears valid, so it will not be
* automatically switched for you. If you would like to
* switch to the newly installed gcc version, do the
* following:

* gcc-config x86_64-pc-linux-gnu-4.7.3
* source /etc/profile

* gcc-config: No profile selected, unable to utilize --use-old

* 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):
* http://www.gentoo.org/doc/en/gcc-upgrading.xml

If I emerge a package now, it doesn't complain anymore. Some more info:

Quote:

# du -sh /usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3/x86_64-pc-linux-gnu-g++
556K /usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3/x86_64-pc-linux-gnu-g++

# ldd /usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3/x86_64-pc-linux-gnu-g++
linux-vdso.so.1 (0x0000026cdcc1b000)
libm.so.6 => /lib64/libm.so.6 (0x0000026cdc705000)
libc.so.6 => /lib64/libc.so.6 (0x0000026cdc35a000)
/lib64/ld-linux-x86-64.so.2 (0x0000026cdc9fb000)

Jaglover
Watchman

Joined: 29 May 2005
Posts: 8291
Location: Saint Amant, Acadiana

Posted: Wed Dec 04, 2013 9:33 pm Post subject:

Glad to hear it worked for you! _________________ My Gentoo installation notes. Please learn how to denote units correctly!

mv
Watchman

Joined: 20 Apr 2005
Posts: 6747

Posted: Thu Dec 05, 2013 10:12 am Post subject:

eleanor wrote:

Quote:

$ size /usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3/x86_64-pc-linux-gnu-g++
text data bss dec hex filename
589755 6864 7176 603795 93693 /usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3/x86_64-pc-linux-gnu-g++

Looks reasonable, i.e. this is probably not the problem.

eleanor
l33t
l33t

Joined: 01 Nov 2004
Posts: 666

Posted: Thu Dec 05, 2013 5:32 pm Post subject:

Thank you all, marking this as solved.

eleanor
l33t
l33t

Joined: 01 Nov 2004
Posts: 666

Posted: Fri Dec 06, 2013 9:46 pm Post subject:

Hi, I've built the new gcc-4.8.0 and I'm getting the same error as before. Obviously I can't ask you guys every a couple of months to build me a new gcc, so it would be great if we can figure out the cause of this. Does anybody have an idea what might be going on: I guess the gcc is not a problem, but something else it uses is?

Jaglover
Watchman

Joined: 29 May 2005
Posts: 8291
Location: Saint Amant, Acadiana

Posted: Sat Dec 07, 2013 1:24 am Post subject:

This is a long shot, is there anything in /usr/local that may be picked up during compilation? My 2¢. _________________ My Gentoo installation notes. Please learn how to denote units correctly!

krinn
Watchman

Joined: 02 May 2003
Posts: 7470

Posted: Sat Dec 07, 2013 4:44 am Post subject:

Let's start the guess my trouble logic :

Code:

x86_64-pc-linux-gnu-gcc: internal compiler error: Killed (program cc1)

clue1: it's well know out of memory error or bad memory gave the Killed message for gcc

clue2: missing dmesg after killed message. generally you get clue and info in dmesg about that kill.
hint1: it's good to listen queries from helper, and you should really really specially watch ones coming from this guy https://forums.gentoo.org/viewtopic-p-7453612.html#7453612

clue3: higher clue1, python memory failure on emerge bin-utils @ https://forums.gentoo.org/viewtopic-p-7443546.html#7443546

Code:

File "/usr/lib64/python2.7/ctypes/__init__.py", line 279, in _reset_cache
CFUNCTYPE(c_int)(lambda: None)
MemoryError

clue4: uname -r = 3.10.1-hardened-r1
hardened kernel at work
hint2: could be really good to query help while showing emerge --info, so we don't have to dig to get info we seek.

possible answer @ : https://forums.gentoo.org/viewtopic-p-7442782.html#7442782

Code:

/usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/lto-wrapper
/usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/plugin/gengtype
* XT PaX marking -r with paxctl-ng
* /var/tmp/portage/sys-devel/gcc-4.7.3-r1/image//usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/cc1
* XT PaX marking -r with paxctl-ng
* /var/tmp/portage/sys-devel/gcc-4.7.3-r1/image//usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/cc1plus
>>> Completed installing gcc-4.7.3-r1 into /var/tmp/portage/sys-devel/gcc-4.7.3-r1/image/

Now seeing PaX feature and hardened PaX kernel can enforce memory handling, and seeing cc1 and cc1plus were target by paxctl-ng i suppose it's a needed thing that could bug gcc running.
And wrong settings on cc1/cc1plus for feature that can deny/randomize memory access is compatible with complains from gcc against memory problem.

So you should try to look at PaX handling of any of your gcc version that are in troubles.
And as a blind solve i would try (but like i said, that's blind guess as i really don't know what this is trying to do and hardened/PaX handling : so if anything goes wrong, tell everyone it's Jaglover's fault, everyone hates him so it's ok to do so).

Code:

paxctl-ng -z /usr/libexec/gcc/x86_64-pc-linux-gnu/"gccversionthatfail"/cc1plus
paxctl-ng -z /usr/libexec/gcc/x86_64-pc-linux-gnu/"gccversionthatfail"/cc1

There's still something that trouble me, if you use JagLover's gcc that i suppose don't have the PaX command run on it but works, it mean the blind solve is totally wrong so. But even if the solve is wrong, the symptoms remain compatible with memory errors, so you should dig PaX troubles yourself or query help from users with knowledge of hardened/PaX handling (the kind of beast usually found on irc).
Or wait for a better guess here...

eleanor
l33t
l33t

Joined: 01 Nov 2004
Posts: 666

Posted: Sat Dec 07, 2013 8:57 am Post subject:

Hi,

At the time of emerging tmux, which fails, the following is written into dmesg:

Quote:

[435334.254911] grsec: chdir to /usr/portage by /usr/bin/git[git:11385] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:11384] uid/euid:0/0 gid/egid:0/0
[435334.254928] grsec: chdir to /usr by /usr/bin/git[git:11385] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:11384] uid/euid:0/0 gid/egid:0/0
[435334.254943] grsec: chdir to / by /usr/bin/git[git:11385] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:11384] uid/euid:0/0 gid/egid:0/0
[435334.259664] grsec: chdir to /usr/portage by /usr/bin/git[git:11387] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:11386] uid/euid:0/0 gid/egid:0/0
[435334.259681] grsec: chdir to /usr by /usr/bin/git[git:11387] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:11386] uid/euid:0/0 gid/egid:0/0
[435334.259695] grsec: chdir to / by /usr/bin/git[git:11387] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:11386] uid/euid:0/0 gid/egid:0/0
[435337.715742] grsec: chdir to /usr/portage/packages by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.715780] grsec: chdir to /usr/portage/packages by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.715825] grsec: chdir to /etc/portage by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.715911] grsec: chdir to /etc/portage/savedconfig by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.715939] grsec: chdir to /etc/portage/savedconfig/sys-apps by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.715970] grsec: chdir to /etc/portage/savedconfig by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.715992] grsec: chdir to /etc/portage/savedconfig/app-misc by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716040] grsec: chdir to /etc/portage/savedconfig by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716058] grsec: chdir to /etc/portage by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716455] grsec: chdir to /etc/portage/bin by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716482] grsec: chdir to /etc/portage by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716509] grsec: chdir to /etc/portage/postsync.d by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716534] grsec: chdir to /etc/portage by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716563] grsec: chdir to /etc/portage/repos.conf by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716598] grsec: chdir to /etc/portage by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716665] grsec: chdir to /etc/portage/patches by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716694] grsec: chdir to /etc/portage/patches/x11-base by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716719] grsec: chdir to /etc/portage/patches/x11-base/xorg-server by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716743] grsec: chdir to /etc/portage/patches/x11-base by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716757] grsec: chdir to /etc/portage/patches by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716772] grsec: chdir to /etc/portage by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716796] grsec: chdir to /usr/portage/packages by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435337.716804] grsec: chdir to /usr/portage/packages by /usr/bin/find[find:11407] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435351.550839] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11417] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435351.575953] grsec: chdir to /var/tmp/portage by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11418] uid/euid:0/0 gid/egid:0/0, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11417] uid/euid:0/0 gid/egid:0/0
[435351.709721] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11430] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0
[435352.064282] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild-ipc[ebuild-ipc:11581] uid/euid:0/0 gid/egid:0/0, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11578] uid/euid:0/0 gid/egid:0/0
[435352.240715] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11578] uid/euid:0/0 gid/egid:0/0, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11430] uid/euid:0/0 gid/egid:0/0
[435352.345994] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild-ipc[ebuild-ipc:11594] uid/euid:0/0 gid/egid:0/0, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11578] uid/euid:0/0 gid/egid:0/0
[435352.553777] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11600] uid/euid:250/250 gid/egid:250/250, parent /usr/bin/sandbox[sandbox:11598] uid/euid:250/250 gid/egid:250/250
[435352.619384] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild-helpers/xattr/install[install:11621] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250
[435352.709178] grsec: chdir to /usr/lib64/portage/pym by /usr/bin/python2.7[python2.7:11621] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250
[435352.720833] grsec: chdir to /var by /usr/bin/install[install:11624] uid/euid:250/250 gid/egid:250/250, parent /usr/bin/python2.7[python2.7:11621] uid/euid:250/250 gid/egid:250/250
[435352.720877] grsec: chdir to /var/tmp by /usr/bin/install[install:11624] uid/euid:250/250 gid/egid:250/250, parent /usr/bin/python2.7[python2.7:11621] uid/euid:250/250 gid/egid:250/250
[435352.720898] grsec: chdir to /var/tmp/portage by /usr/bin/install[install:11624] uid/euid:250/250 gid/egid:250/250, parent /usr/bin/python2.7[python2.7:11621] uid/euid:250/250 gid/egid:250/250
[435352.720918] grsec: chdir to /var/tmp/portage/app-misc by /usr/bin/install[install:11624] uid/euid:250/250 gid/egid:250/250, parent /usr/bin/python2.7[python2.7:11621] uid/euid:250/250 gid/egid:250/250
[435352.720939] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8 by /usr/bin/install[install:11624] uid/euid:250/250 gid/egid:250/250, parent /usr/bin/python2.7[python2.7:11621] uid/euid:250/250 gid/egid:250/250
[435352.732045] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11600] uid/euid:250/250 gid/egid:250/250
[435352.798276] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work by /usr/bin/find[find:11632] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250
[435352.798353] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work by /usr/bin/find[find:11632] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250
[435352.798408] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work by /usr/bin/find[find:11632] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250
[435352.798474] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work by /usr/bin/find[find:11632] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250
[435352.798483] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work by /usr/bin/find[find:11632] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250
[435352.814662] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11600] uid/euid:250/250 gid/egid:250/250
[435352.891367] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild-ipc[ebuild-ipc:11643] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11617] uid/euid:250/250 gid/egid:250/250
[435353.072319] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11649] uid/euid:250/250 gid/egid:250/250, parent /usr/bin/sandbox[sandbox:11647] uid/euid:250/250 gid/egid:250/250
[435353.131645] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11666] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11649] uid/euid:250/250 gid/egid:250/250
[435353.754976] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/temp/am4tCY4aRs by /usr/bin/autom4te-2.69[autom4te-2.69:11707] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11703] uid/euid:250/250 gid/egid:250/250
[435353.755502] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /usr/bin/autom4te-2.69[autom4te-2.69:11707] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11703] uid/euid:250/250 gid/egid:250/250
[435353.856528] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild-ipc[ebuild-ipc:11865] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:11864] uid/euid:250/250 gid/egid:250/250
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[435358.543881] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8_build by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.543944] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544025] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544236] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/autom4te.cache by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544304] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544379] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/compat by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544476] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544532] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/examples by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544603] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544807] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/etc by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544896] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544947] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544959] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8_build by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.544968] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8_build by /usr/bin/find[find:12644] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435358.636125] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8_build by /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12696] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12649] uid/euid:250/250 gid/egid:250/250
[435358.642268] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12701] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12700] uid/euid:250/250 gid/egid:250/250
[435358.768962] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8_build by /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12774] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12708] uid/euid:250/250 gid/egid:250/250
[435358.775688] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12779] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12778] uid/euid:250/250 gid/egid:250/250
[435358.861566] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild-helpers/xattr/install[install:12825] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12708] uid/euid:250/250 gid/egid:250/250
[435358.951897] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8_build by /usr/bin/python2.7[python2.7:12825] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12708] uid/euid:250/250 gid/egid:250/250
[435358.991662] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/etc by /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12840] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12708] uid/euid:250/250 gid/egid:250/250
[435359.030391] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8_build by /usr/bin/gmake[make:12852] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12851] uid/euid:250/250 gid/egid:250/250
[435359.056664] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8_build by /usr/bin/gmake[make:12859] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12708] uid/euid:250/250 gid/egid:250/250
[435359.058582] grsec: chdir to /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8 by /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12863] uid/euid:250/250 gid/egid:250/250, parent /var/tmp/portage/app-misc/tmux-1.8/work/tmux-1.8/configure[configure:12708] uid/euid:250/250 gid/egid:250/250
[435359.521834] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild-ipc[ebuild-ipc:13029] uid/euid:250/250 gid/egid:250/250, parent /usr/lib64/portage/bin/ebuild.sh[ebuild.sh:12575] uid/euid:250/250 gid/egid:250/250
[435360.059230] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/misc-functions.sh[misc-functions.:13034] uid/euid:0/0 gid/egid:0/0, parent /usr/bin/sandbox[sandbox:13033] uid/euid:0/0 gid/egid:0/0
[435360.179294] grsec: chdir to /usr/lib64/portage/pym by /usr/lib64/portage/bin/ebuild-ipc[ebuild-ipc:13053] uid/euid:0/0 gid/egid:0/0, parent /usr/lib64/portage/bin/misc-functions.sh[misc-functions.:13034] uid/euid:0/0 gid/egid:0/0
[435360.357395] grsec: chdir to / by /usr/bin/python2.7[emerge:11398] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:9994] uid/euid:0/0 gid/egid:0/0
[435360.656436] grsec: chdir to /usr/portage by /usr/bin/git[git:13067] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:13066] uid/euid:0/0 gid/egid:0/0
[435360.656452] grsec: chdir to /usr by /usr/bin/git[git:13067] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:13066] uid/euid:0/0 gid/egid:0/0
[435360.656465] grsec: chdir to / by /usr/bin/git[git:13067] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:13066] uid/euid:0/0 gid/egid:0/0
[435360.661600] grsec: chdir to /usr/portage by /usr/bin/git[git:13069] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:13068] uid/euid:0/0 gid/egid:0/0
[435360.661618] grsec: chdir to /usr by /usr/bin/git[git:13069] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:13068] uid/euid:0/0 gid/egid:0/0
[435360.661631] grsec: chdir to / by /usr/bin/git[git:13069] uid/euid:0/0 gid/egid:0/0, parent /bin/zsh[zsh:13068] uid/euid:0/0 gid/egid:0/0

Pax settings:

Quote:

[INS] (/usr/portage/packages) # find /usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0 | xargs paxctl-ng -v
/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-c++:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/gcc-ar:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/gcc-nm:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/gcc-ranlib:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/c++:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-gcov:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-gcc:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-g++:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-gfortran:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-cpp:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-gcc-ar:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-gcc-nm:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-gcc-ranlib:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/gfortran:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/gcov:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/g++:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/x86_64-pc-linux-gnu-gcc-4.8.0:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/gcc:
XATTR_PAX : not found

/usr/x86_64-pc-linux-gnu/gcc-bin/4.8.0/cpp:
XATTR_PAX : not found

# find /usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/ | xargs paxctl-ng -v
/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/:
XATTR_PAX : not found

/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/plugin:
XATTR_PAX : not found

/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/plugin/gengtype:
XATTR_PAX : not found

/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/cc1:
XATTR_PAX : -e-r-

/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/lto-wrapper:
XATTR_PAX : not found

/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/cc1plus:
XATTR_PAX : -e-r-

/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/f951:
XATTR_PAX : not found

/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/collect2:
XATTR_PAX : not found

You were right, the cc1plus and cc1 have PaX settings set, so by running the "paxctl-ng -z" the problem is now solved. The actual problem is the r PaX flag, because the gcc doesn't like it and we have to disable it. The problem is that gcc uses pre header (pch) with the hard coded address when making the pre header stuff, which doesn't run well with random base address; therefore the gcc segfaults when using it: the explanation was offered by Zorry on #gentoo-hardened; thank you.

Quote:

# paxctl-ng -R /usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/cc1
# paxctl-ng -R /usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.0/cc1plus

Bug: https://bugs.gentoo.org/show_bug.cgi?id=301299

Thank you very much, we've figured out the root of the problem, marking it as solved, this time for real.

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