#16105: Stop linking everything to libntl
-------------------------------------------------+-------------------------
Reporter: darij | Owner:
Type: defect | Status: closed
Priority: blocker | Milestone: sage-6.2
Component: build | Resolution: fixed
Keywords: ntl, crash | Merged in:
Authors: Jeroen Demeyer | Reviewers: Volker
Report Upstream: N/A | Braun
Branch: | Work issues:
2770a55d98ddb44edb113207e00c502baf30acb6 | Commit:
Dependencies: | Stopgaps:
-------------------------------------------------+-------------------------
Comment (by fbissey):
Next
{{{
readelf -d /usr/lib64/python2.7/site-
packages/sage/algebras/quatalg/quaternion_algebra_cython.so
Dynamic section at offset 0xcd18 contains 29 entries:
Tag Type Name/Value
0x0000000000000001 (NEEDED) Shared library: [libcsage.so]
0x0000000000000001 (NEEDED) Shared library: [libgmp.so.10]
0x0000000000000001 (NEEDED) Shared library: [libstdc++.so.6]
0x0000000000000001 (NEEDED) Shared library:
[libpython2.7.so.1.0]
0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
0x000000000000000c (INIT) 0x29e0
}}}
and
{{{
ldd -r /usr/lib64/python2.7/site-
packages/sage/algebras/quatalg/quaternion_algebra_cython.so
linux-vdso.so.1 (0x00007fffbb1ff000)
libcsage.so => /usr/lib64/libcsage.so (0x00007ff74c655000)
libgmp.so.10 => /usr/lib64/libgmp.so.10 (0x00007ff74c3e5000)
libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-
gnu/4.8.2/libstdc++.so.6 (0x00007ff74c0dc000)
libpython2.7.so.1.0 => /usr/lib64/libpython2.7.so.1.0
(0x00007ff74bd2b000)
libc.so.6 => /lib64/libc.so.6 (0x00007ff74b97e000)
libntl-6.1.0.so => /usr/lib64/libntl-6.1.0.so (0x00007ff74b5db000)
libpari-gmp.so.3 => /usr/lib64/libpari-gmp.so.3
(0x00007ff74af9a000)
libgcc_s.so.1 => /usr/lib/gcc/x86_64-pc-linux-
gnu/4.8.2/libgcc_s.so.1 (0x00007ff74ad83000)
libm.so.6 => /lib64/libm.so.6 (0x00007ff74aa86000)
/lib64/ld-linux-x86-64.so.2 (0x00007ff74cab4000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007ff74a869000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007ff74a665000)
libutil.so.1 => /lib64/libutil.so.1 (0x00007ff74a461000)
libgf2x.so.1 => /usr/lib64/libgf2x.so.1 (0x00007ff74a24c000)
}}}
flint and gmpxx are absent.
{{{
readelf -d /usr/lib64/python2.7/site-
packages/sage/groups/perm_gps/partn_ref2/refinement_generic.so
Dynamic section at offset 0x32cd8 contains 30 entries:
Tag Type Name/Value
0x0000000000000001 (NEEDED) Shared library: [libcsage.so]
0x0000000000000001 (NEEDED) Shared library:
[libflint.so.2.4.3]
0x0000000000000001 (NEEDED) Shared library: [libgmp.so.10]
0x0000000000000001 (NEEDED) Shared library:
[libpython2.7.so.1.0]
0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0]
0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
0x000000000000000c (INIT) 0x5ec8
}}}
gmpxx not there and in consequence stdc++ is not there either. It is
brought in indirectly by ntl through flint and csage from the ldd output.
{{{
readelf -d /usr/lib64/python2.7/site-packages/sage/libs/flint/flint.so
Dynamic section at offset 0x1da8 contains 29 entries:
Tag Type Name/Value
0x0000000000000001 (NEEDED) Shared library: [libcsage.so]
0x0000000000000001 (NEEDED) Shared library:
[libflint.so.2.4.3]
0x0000000000000001 (NEEDED) Shared library:
[libpython2.7.so.1.0]
0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0]
0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
0x000000000000000c (INIT) 0xf98
}}}
At this stage I did a little research and found that the only extension
linking directly to gmpxx is
{{{
File: /usr/lib64/python2.7/site-
packages/sage/modular/arithgroup/farey_symbol.so
Dynamic section at offset 0x42be8 contains 32 entries:
Tag Type Name/Value
0x0000000000000001 (NEEDED) Shared library: [libcsage.so]
0x0000000000000001 (NEEDED) Shared library: [libgmpxx.so.4]
0x0000000000000001 (NEEDED) Shared library: [libgmp.so.10]
0x0000000000000001 (NEEDED) Shared library: [libstdc++.so.6]
0x0000000000000001 (NEEDED) Shared library:
[libpython2.7.so.1.0]
0x0000000000000001 (NEEDED) Shared library: [libgcc_s.so.1]
0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0]
0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
0x000000000000000c (INIT) 0xbd28
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/16105#comment:38>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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