Re: octave development version from source

[Kjetil brinchmann Halvorsen]

OK! thanks!

I am now trying to follow the instructions on
http://wiki.octave.org/Debugging_Octave
to make a debugging version of octave.

First, I did hg pull /hg update to get todays version, then make
distclean, so configure in a new directory such:
(Part of output)

address@hidden:~/gnuoctave/octave/debug-octave$
../configure FFLAGS=-g CFLAGS=-g  CXXFLAGS=-g --enable-bounds-check
--prefix=/opt/dbg-octave


checking Magick++.h usability... yes
checking Magick++.h presence... yes
checking for Magick++.h... yes
checking for Magick::ColorRGB in Magick++.h... yes

checking for GL/gl.h... yes
checking for GL/glu.h... yes
checking for glEnable in -lGL... yes

checking for OpenGL support in FLTK... yes

checking for suitesparse/umfpack.h... yes
checking for umfpack_zi_get_determinant in -lumfpack... no
configure: WARNING: UMFPACK not found.  This will result in some lack
of functionality for sparse matrices.

Octave is now configured for x86_64-unknown-linux-gnu

  Source directory:            .
  Installation prefix:         /usr/local
  C compiler:                  gcc   -Wall -W -Wshadow -Wformat
-Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes
-Wwrite-strings -Wcast-align -Wcast-qual -g -O2 -pthread
  C++ compiler:                g++   -I/usr/include/freetype2
-Wall -W -Wshadow -Wold-style-cast -Wformat -Wpointer-arith
-Wwrite-strings -Wcast-align -Wcast-qual -g -O2 -pthread
  Fortran compiler:            gfortran -O
  Fortran libraries:            -L/usr/lib/gcc/x86_64-linux-gnu/4.8
-L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu
-L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../lib
-L/lib/x86_64-linux-gnu -L/lib/../lib -L/usr/lib/x86_64-linux-gnu
-L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../..
-lgfortran -lm -lquadmath
  Lex libraries:
  LIBS:                        -lutil -lm

  AMD CPPFLAGS:
  AMD LDFLAGS:
  AMD libraries:               -lamd
  ARPACK CPPFLAGS:
  ARPACK LDFLAGS:
  ARPACK libraries:            -larpack
  BLAS libraries:              -lcblas -lf77blas -latlas
  CAMD CPPFLAGS:
  CAMD LDFLAGS:
  CAMD libraries:              -lcamd
  CARBON libraries:
  CCOLAMD CPPFLAGS:
  CCOLAMD LDFLAGS:
  CCOLAMD libraries:           -lccolamd
  CHOLMOD CPPFLAGS:
  CHOLMOD LDFLAGS:
  CHOLMOD libraries:           -lcholmod
  COLAMD CPPFLAGS:
  COLAMD LDFLAGS:
  COLAMD libraries:            -lcolamd
  CURL CPPFLAGS:
  CURL LDFLAGS:
  CURL libraries:              -lcurl
  CXSPARSE CPPFLAGS:
  CXSPARSE LDFLAGS:
  CXSPARSE libraries:          -lcxsparse
  DL libraries:                -ldl
  FFTW3 CPPFLAGS:
  FFTW3 LDFLAGS:
  FFTW3 libraries:             -lfftw3_threads -lfftw3
  FFTW3F CPPFLAGS:
  FFTW3F LDFLAGS:
  FFTW3F libraries:            -lfftw3f_threads -lfftw3f
  fontconfig CFLAGS:
  fontconfig libraries:        -lfontconfig
  FreeType2 CFLAGS:            -I/usr/include/freetype2
  FreeType2 libraries:         -lfreetype
  GLPK CPPFLAGS:
  GLPK LDFLAGS:
  GLPK libraries:              -lglpk
  graphics CFLAGS:              -I/usr/include/cairo
-I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
-I/usr/include/pixman-1 -I/usr/include/freetype2
-I/usr/include/libpng12   -DCP936  -D_LARGEFILE_SOURCE
-D_LARGEFILE64_SOURCE -D_THREAD_SAFE -D_REENTRANT
  graphics libraries:          -Wl,-Bsymbolic-functions -lfltk_gl -lfltk -lX11
  HDF5 CPPFLAGS:
  HDF5 LDFLAGS:
  HDF5 libraries:              -lhdf5
  Java home:                   /usr/lib/jvm/java-7-openjdk-amd64
  Java JVM path:
/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server
  Java CPPFLAGS:
-I/usr/lib/jvm/java-7-openjdk-amd64/include
-I/usr/lib/jvm/java-7-openjdk-amd64/include/linux
  Java libraries:
  LAPACK libraries:            -llapack
  LLVM CPPFLAGS:
  LLVM LDFLAGS:
  LLVM libraries:
  Magick++ CPPFLAGS:           -I/usr/include/GraphicsMagick
  Magick++ LDFLAGS:
  Magick++ libraries:          -lGraphicsMagick++ -lGraphicsMagick
  OPENGL libraries:            -lfontconfig   -lGL -lGLU
  PTHREAD flags:               -pthread
  PTHREAD libraries:
  QHULL CPPFLAGS:
  QHULL LDFLAGS:
  QHULL libraries:             -lqhull
  QRUPDATE CPPFLAGS:
  QRUPDATE LDFLAGS:
  QRUPDATE libraries:          -lqrupdate
  Qt CPPFLAGS:                 -I/usr/include/qt4
-I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui
-I/usr/include/qt4/QtNetwork
  Qt LDFLAGS:
  Qt libraries:                -lQtGui -lQtNetwork -lQtCore   -lqscintilla2
  READLINE libraries:          -lreadline
  REGEX libraries:             -lpcre
  TERM libraries:              -lncurses
  UMFPACK CPPFLAGS:
  UMFPACK LDFLAGS:
  UMFPACK libraries:
  X11 include flags:
  X11 libraries:               -lX11
  Z CPPFLAGS:
  Z LDFLAGS:
  Z libraries:                 -lz

  Default pager:               less
  gnuplot:                     gnuplot

  Build Octave GUI:                   yes
  JIT compiler for loops:             no
  Build Java interface:               yes
  Do internal array bounds checking:  no
  Use octave_allocator:               no
  Build static libraries:             no
  Build shared libraries:             yes
  Dynamic Linking:                    yes (dlopen)
  Include support for GNU readline:   yes
  64-bit array dims and indexing:     no

configure: WARNING: UMFPACK not found.  This will result in some lack
of functionality for sparse matrices.
configure:
configure: NOTE: Libraries or auxiliary programs may be skippeimple d
if they are
configure: NOTE: not found OR if they are missing required features on your
configure: NOTE: system.

---------------------------   end snaps from configure output
-------------------------------------------------

When debugging we will use the following simple "image" as a test:

>> V = [ 1 0 0 0 0 0 1;
         0 1 0 0 0 1 0;
         0 1 0 0 0 1 0;
         0 0 1 0 1 0 0;
         0 0 1 0 1 0 0;
         0 0 0 1 0 0 0;
         0 0 0 1 0 0 0]

Now running    ./run-octave -h  &

>> VI = uint8(V)

>> class(VI)
ans = uint8

imshow(VI) ---- bombs!

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Inferior 1 (process 10826) exited with code 0177]


(gdb) bt
No stack.

what does the exit code 0177 mean?

Kjetil

On Thu, Oct 24, 2013 at 8:50 AM, c. <address@hidden> wrote:
>
> On 23 Oct 2013, at 23:09, Kjetil brinchmann Halvorsen <address@hidden> wrote:
>
>> Thanks!
>>
>> will try, but to include the error message is a bit diffficult when it
>> bombs, so there is never an error message to
>> see ....  ¿Is there a way I can gwet to see the error message in such cases?
>>
>> Kjetil
>
> If you compiled Octave yourself you can start it using the script 
> "run-octave" which is in the top level of the source tree.
> if you pass the option '-g' to 'run-octave' it will start the program in a 
> debugger.
> When octace crashes you'll fall back to the debugger prompt, which you can 
> use to gather more info about what happened.
> In particular you can use the command 'bt' (backtrace) to list the functions 
> in the stack, that info is usually helpful
> when debugging this sort of problems.
>
> c.