#9583: Unhandled SIGSEGV with 4.5.2.alpha0 on t2
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Reporter: mpatel | Owner: drkirkby
Type: defect | Status: new
Priority: blocker | Milestone: sage-4.5.2
Component: solaris | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by jhpalmieri):
When I touch one of the files, I see
{{{
gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-
prototypes -fPIC
-I/scratch/palmieri/sage-4.5.2.alpha0/local/include/singular
-I/scratch/palmieri/sage-4.5.2.alpha0/local//include
-I/scratch/palmieri/sage-4.5.2.alpha0/local//include/csage
-I/scratch/palmieri/sage-4.5.2.alpha0/devel//sage/sage/ext
-I/scratch/palmieri/sage-4.5.2.alpha0/local/include/python2.6 -c
sage/libs/singular/option.cpp -o
build/temp.solaris-2.10-sun4v-2.6/sage/libs/singular/option.o -w
}}}
then a few lines later,
{{{
g++ -shared build/temp.solaris-2.10-sun4v-2.6/sage/libs/singular/option.o
-L/scratch/palmieri/sage-4.5.2.alpha0/local//lib
-L/scratch/palmieri/sage-4.5.2.alpha0/local/lib -lcsage -lm -lreadline
-lsingular -lgivaro -lgmpxx -lgmp -lstdc++ -lntl -lpython2.6 -o
build/lib.solaris-2.10-sun4v-2.6/sage/libs/singular/option.so
}}}
> So, the crucial question is: Why is Cython generating a C++ file rather
than a C file?
Presumably because in devel/sage/module_list.py, it says
{{{
Extension('sage.libs.singular.option',
sources = ['sage/libs/singular/option.pyx'],
libraries = ['m', 'readline', 'singular', 'givaro', 'gmpxx',
'gmp'],
language="c++",
include_dirs = [SAGE_ROOT +'/local/include/singular'],
depends = [SAGE_ROOT + "/local/include/libsingular.h"]),
}}}
Note the "language" line.
> libpari-gmp.so.2 also exports a mu symbol, by the way. But it's a
function, not data, so assigning to that could cause that crash.
That's interesting; could that be the problem? What can we do to fix it?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9583#comment:24>
Sage <http://www.sagemath.org>
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