#13731: Fix libsingular memory management
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Reporter: nbruin |
Owner: rlm
Type: defect |
Status: new
Priority: major |
Milestone: sage-5.6
Component: memleak |
Resolution:
Keywords: | Work
issues:
Report Upstream: Reported upstream. Developers acknowledge bug. |
Reviewers:
Authors: | Merged
in:
Dependencies: |
Stopgaps:
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Comment (by SimonKing):
Sorry, my knowledge of automake is too limited. So far, I did not succeed
to create a package that replaces omalloc by xalloc.
What I did (see also the thread in libsingular):
* replace omalloc/ by the contents of xalloc/ in Singular Spielwiese
* run `aclocal` in omalloc
* run `autoconf` in omalloc
* run `automake --install-missing` in omalloc
* run `automake` again in omalloc
* add the line `install-nolns: install` to the resulting `Makefile.in`
* turn all this into a conditional patch, that is applied if `export
SINGULAR_XALLOC=yes` was done.
When I try to install the spkg, it fails with
{{{
make install-nolns in omalloc
make[1]: Entering directory
`/home/simon/SAGE/debug/sage-5.5.rc0/spkg/build/singular-3-1-5.p2/src/omalloc'
/bin/sh ./libtool --tag=CC --mode=compile gcc -DPACKAGE_NAME=\"xalloc\"
-DPACKAGE_TARNAME=\"xalloc\" -DPACKAGE_VERSION=\"3.1.2.sw\"
-DPACKAGE_STRING=\"xalloc\ 3.1.2.sw\" -DPACKAGE_BUGREPORT=\"\"
-DPACKAGE_URL=\"\" -DPACKAGE=\"xalloc\" -DVERSION=\"3.1.2.sw\"
-DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1
-DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1
-DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1
-DLT_OBJDIR=\".libs/\" -I. -I. -DHAVE_CONFIG_H -DNDEBUG -DOM_NDEBUG
-I/home/simon/SAGE/debug/sage-5.5.rc0/local/include
-I/home/simon/SAGE/debug/sage-5.5.rc0/local/include -O3 -O2 -g -fPIC
-MT libomalloc_la-dummy.lo -MD -MP -MF .deps/libomalloc_la-dummy.Tpo -c -o
libomalloc_la-dummy.lo `test -f 'dummy.c' || echo './'`dummy.c
mv -f .deps/libomalloc_la-dummy.Tpo .deps/libomalloc_la-dummy.Plo
mv: Aufruf von stat für „.deps/libomalloc_la-dummy.Tpo“ nicht möglich:
Datei oder Verzeichnis nicht gefunden
make[1]: *** [libomalloc_la-dummy.lo] Fehler 1
make[1]: Leaving directory
`/home/simon/SAGE/debug/sage-5.5.rc0/spkg/build/singular-3-1-5.p2/src/omalloc'
make: *** [install-nolns] Fehler 1
Unable to build and install Singular
Error building Singular (error in build_singular).
}}}
Apparently the .deps directory was automatically created by the script
`./depcomp`, that belongs to those installed by automake --install-
missing. Its content after the installation failed:
{{{
simon@linux-sqwp:~/SAGE/debug/sage-5.5.rc0> ls
spkg/build/singular-3-1-5.p2/src/omalloc/.deps/
libomalloc_g_la-dummy.Plo libomalloc_la-dummy.Plo
}}}
And to be honest, I don't see the point of the `dummy.c` file in xalloc,
which is:
{{{
#include "omalloc.h"
int om_sing_opt_show_mem; /* dummy */
struct omInfo_s om_Info; /* dummy */
struct omOpts_s om_Opts; /* dummy */
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13731#comment:84>
Sage <http://www.sagemath.org>
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