Bug 1312507 - link error linking fortran code with PIE
Summary: link error linking fortran code with PIE
Alias: None
Product: Fedora
Classification: Fedora
Component: binutils
Version: 24
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Nick Clifton
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2016-02-26 23:05 UTC by H.J. Lu
Modified: 2016-04-29 19:33 UTC (History)
6 users (show)

Clone Of:
Last Closed: 2016-04-29 19:33:50 UTC

Attachments (Terms of Use)

External Trackers
Tracker ID Priority Status Summary Last Updated
Sourceware 19579 None None None 2016-03-02 22:03 UTC

Description H.J. Lu 2016-02-26 23:05:16 UTC
When tried to rebuild mopac7app rpm in mock with binutils 2.26 on
Fedora 23, I got:

libtool: link: gfortran -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic -I/usr/lib64/gfortran/modules -std=legacy -fno-automatic -Wl,-z -Wl,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -o .libs/mopac7 mopac7app.o  ./.libs/libmopac7.so -lm
/usr/bin/ld: mopac7app.o: relocation R_X86_64_PC32 against undefined symbol `molkst_' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
Makefile:546: recipe for target 'mopac7' failed

redhat-rpm-config has redhat-hardened-cc1 and redhat-hardened-ld.  But
there is no redhat-hardened-f951.  mopac7app.o isn't compiled with PIE/PIC.

Comment 1 H.J. Lu 2016-03-02 22:03:15 UTC
It is a binutils 2.26 linker regression.

Comment 2 Mairi Dulaney 2016-03-12 18:54:09 UTC
This has been fixed upstream, please update accordingly in F24 and Rawhide.

(In reply to H.J. Lu from comment #0)
> When tried to rebuild mopac7app rpm in mock with binutils 2.26 on
> Fedora 23, I got:

I have taken over maintainership of mopac7 in Fedora, and as soon as binutils is fixed I will rebuild mopac7.


Comment 3 Nick Clifton 2016-03-14 17:38:29 UTC
Hi John,

  Please try:

or  binutils-2.26-15.fc24

  These should contain the patch from PR 19579.


Comment 4 Mairi Dulaney 2016-03-14 19:05:50 UTC
Looks like that's not building for F24?

Giving F25 a shot

Comment 5 Nick Clifton 2016-03-15 11:51:59 UTC
Hi John,

  Darn - the F24 version ran foul of a strict aliasing bug in F24 gcc.  See the email thread here for more details:


Since I really want the binutils to be able to be built for F24, I have checked in a couple of patches that work around the aliasing bug.  So you can now try out this version of the binutils, should you so desire:



Comment 6 Mairi Dulaney 2016-04-29 19:33:50 UTC
Gonna close this, as everything looks shiny, now.

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