#9872: PolyBoRi incorrectly reports a GNU linker is used with gcc and produces
libraries with text relocations.
------------------------+---------------------------------------------------
Reporter: drkirkby | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone:
Component: packages | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------+---------------------------------------------------
When I try to build !PolyBoRi on a Sun Ultra 27 running !OpenSolaris, I
notice the message:
{{{
GNU linker detected!
}}}
This message is in the SConstruct file and comes from some discussions on
#6437.
It would appear the test is not useful on !OpenSolaris, as the linker now
takes the GNU options too. however, I don't feel this is a the cause of
the main problem.
A problem exists in that the link-editor thinks the library contains code
which is not position independant - i.e. it is not PIC. This can be seen
with the {{{elfdump}}} command.
{{{
drkir...@hawk:~/sage-4.5.3/local/lib$ elfdump -d libpolybori-0.6.4.so |
grep TEXTREL
[25] TEXTREL 0
[34] FLAGS 0x4 [ TEXTREL ]
}}}
and, what I assume is part of !PolyBoRi as the version number is
identical.
{{{
drkir...@hawk:~/sage-4.5.3/local/lib$ elfdump -d libgroebner-0.6.4.so |
grep TEXTREL
[25] TEXTREL 0
[34] FLAGS 0x4 [ TEXTREL ]
}}}
This is a bad sign - see for example
http://blogs.sun.com/rie/entry/my_relocations_don_t_fit
There should be no output from the above command, which is the case with
most libraries. (Only ECL, !PolyBoRi and Cliquer have this problem, but
I've solved the Cliquer issue - see #9871)
As far as I can tell, -fPIC is used when building all the files, so there
must be another reason for this problem.
Dave
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9872>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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