[MATH] Octave on Android!

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Doc_cheilvenerdi.org

Doc_cheilvenerdi.org

Senior Member
Oct 11, 2011
127
349
Ferrara - Ravenna
Who nowadays doesn't need, while on train, to know the eigenvalues of a square matrix?

eigenvalues.png

...or don't you ever need to immediately solve a polinomial equation while on Holidays?

polinomial.png


For all these - and even more - already exists a great Open Source Software called

OCTAVE

octave.png


Well, stating that I'm not a true developer nor a true mathematician and that I needed a lot of time and a lot of googling, I was able to compile an Octave Working binary for Android :)!


Here there is a stripped archive ready to be unpacked into /data/local (octave.tar.gz) but, beware, it's 93Mb weighty, so you must check for enough free space in your internal memory...
I'm on a Galaxy Mini with Internal Memory expanded onto SD Card, so no problems for me... (- - - [ EDIT:in post n. 5 you find a tricked release with non need of internal memory :cool: ]- - - )

- - - [ EDIT: In my next post you find an updated version with readline and many more math stuffs compiled in! ] - - -

Once Unpacked you can simply run it from PC with "adb shell" or directly from the phone with a "Terminal Emulator" application, typing the following command:

Code: 
$ /data/local/octave.sh

P.S, You probably need a rooted phone to extract the archive into /data/local but, after that, you can use it without any root permission...

Actually I disabled many octave features to build it ("native graphics", "opengl", "texinfo" and many others) and fixed the "library run path" of the shared objects immediately after...
This means that you must run the binary on /data/local, otherwise it will not work (not finding dependencies and needed shared libraries)...
...working on it...
 
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roofrider

roofrider

Senior Member
Jul 24, 2011
7,044
907
Bangalore, IN
U not a true dev Doc?
U must be kidding, ppl like u are the heartbeat of xda. U must be a Rec Dev!

Thanks for this...not sure how useful this is going to be for me, always admired ur work!

edit: sry still have not tried it...i'm thinking of rooting my mini ur way, and will try this after that. I've been using cm7 but now back to stock to try a few things :D ur things.
 
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Doc_cheilvenerdi.org

Doc_cheilvenerdi.org

Senior Member
Oct 11, 2011
127
349
Ferrara - Ravenna
Added some stuffs to the octave binary...

Here there is a new compiled version of octave 3.2.4 for Android...
Just added support to ncurses and readline and to several math improvements...
Actually the binary still lacks "arpack", "fftw3", "cholmod", "umfpack" and "qhull" libraries...
Of course no "native graphics" support (I think I'll cannot do it...) but, so forth, I think it's really a usable version for students and so on...


HOW I DID IT!

Chapter 1 - the cross compiler toolchain
I could not immediately use one of the toolchains freely distributed on the net because they usually lack fortran language, so I made one on my own...
I work on a Gentoo LinuX Distribution 64Bit No multilib... briefly I made a chroot environment locked to 32bit executables, binaries and libraries... inside that jail I compiled a cross toolchain using the wonderful package "Crossdev"!
My working parts of the toolchian are:

binutils-2.22
gcc-4.5.3 with gfortran enabled
glibc-2.14.1
kernel-headers-2.35.7

Finally I choose the followin tuplet as the name for this local toolchain:

arm-vfp-linux-gnueabi

Actually it was a "no effort" step... my Gentoo made everything I asked for :)

Chapter 2 - compiling octave dependencies from scratch
I had to compile several dependencies and then octave itself... in the following I report the console commands used for any of them assuming that I'm always inside their working source directory.

I prepared a sysroot environment on my PC starting from /data/local to meet my android path and to avoid strange configurations during compile time...
That is: /data/local is /data/local everywhere...


Man Pages 3.38
Code: 
make prefix=/data/local/usr install

ZLib 1.26
Code: 
CC="arm-vfp-linux-gnueabi-gcc" CXX="arm-vfp-linux-gnueabi-g++" AR="arm-vfp-linux-gnueabi-ar" AS="arm-vfp-linux-gnueabi-as" RANLIB="arm-vfp-linux-gnueabiranlib" LD="arm-vfp-linux-gnueabi-ld" STRIP="arm-vfp-linux-gnueabi-strip" ./configure --prefix=/data/local/usr --shared
make
make install
cp /usr/arm-vfp-linux-gnueabi/lib/libc-2.14.1.so /data/local/usr/lib/libc.so.6
cp /usr/arm-vfp-linux-gnueabi/lib/ld-2.14.1.so /data/local/usr/lib/ld-linux.so.3
cp /usr/arm-vfp-linux-gnueabi/lib/libdl-2.14.1.so /data/local/usr/lib/libdl.so.2
cp /usr/lib/gcc/arm-vfp-linux-gnueabi/4.5.3/libgcc_s.so /data/local/usr/lib/
cp /usr/lib/gcc/arm-vfp-linux-gnueabi/4.5.3/libgcc_s.so.1 /data/local/usr/lib/
cp /usr/arm-vfp-linux-gnueabi/lib/libm-2.14.1.so /data/local/usr/lib/libm.so.6
cp /usr/lib/gcc/arm-vfp-linux-gnueabi/4.5.3/libstdc++.so.6.0.14 /data/local/usr/lib/libstdc++.so.6
cp /usr/arm-vfp-linux-gnueabi/lib/libpthread-2.14.1.so /data/local/usr/lib/libpthread.so.0

XZ 5.0.3
Code: 
./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi
make
make install

Ncurses 5.9
Code: 
./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi --with-shared
            getting this message: ** Include-directory is not in a standard location
make
make install

ReadLine 6.2
Code: 
./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi --with-curses
make
make install

BLAS (march 2007)
I edited the make.inc file adding/changing the following lines:
Code: 
  #PLAT = _LINUX
  FORTRAN  = arm-vfp-linux-gnueabi-gfortran
  LOADER   = arm-vfp-linux-gnueabi-gfortran
  ARCH     = arm-vfp-linux-gnueabi-ar
  RANLIB   = arm-vfp-linux-gnueabi-ranlib
and the compiled with
Code: 
make clean
make
cp blas.a /data/local/usr/lib/
cp /usr/lib/gcc/arm-vfp-linux-gnueabi/4.5.3/libgfortran.so.3.0.0 /data/local/usr/lib/libgfortran.so.3

Lapack 3.4.0
I edited the make.inc file adding/changing the following lines:
Code: 
  FORTRAN  = arm-vfp-linux-gnueabi-gfortran
  LOADER   = arm-vfp-linux-gnueabi-gfortran
  ARCH     = arm-vfp-linux-gnueabi-ar
  RANLIB   = arm-vfp-linux-gnueabi-ranlib
  BLASLIB      = /data/local/usr/lib/blas.a
and then compiled with
Code: 
cd SRC
make clean
make
cd ..
cp lib{lapack,tmglib}.a /data/local/usr/lib/

UFconfig 3.7.0
Code: 
CC="arm-vfp-linux-gnueabi-gcc" CXX="arm-vfp-linux-gnueabi-g++" AR="arm-vfp-linux-gnueabi-ar" AS="arm-vfp-linux-gnueabi-as" RANLIB="arm-vfp-linux-gnueabiranlib" LD="arm-vfp-linux-gnueabi-ld" STRIP="arm-vfp-linux-gnueabi-strip" make
cp libufconfig.a /data/local/usr/lib
cp UFconfig.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libufconfig.a
chmod 0644 /data/local/usr/include/UFconfig.h

AMD 2.2.3
Code: 
cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libamd.a /data/local/usr/lib
cp Include/amd.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libamd.a
chmod 0644 /data/local/usr/include/amd.h

CAMD 2.2.3
Code: 
cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libcamd.a /data/local/usr/lib
cp Include/camd.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libcamd.a
chmod 0644 /data/local/usr/include/camd.h

COLAMD 2.7.4
Code: 
cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libcolamd.a /data/local/usr/lib
cp Include/colamd.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libcolamd.a
chmod 0644 /data/local/usr/include/colamd.h

CCOLAMD 2.7.4
Code: 
cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libccolamd.a /data/local/usr/lib
cp Include/ccolamd.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libccolamd.a
chmod 0644 /data/local/usr/include/ccolamd.h

CHOLMOD
Code: 
cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libcholmod.a /data/local/usr/lib
cp Include/cholmod.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libcholmod.a
chmod 0644 /data/local/usr/include/cholmod.h

UMFPACK 5.5.2
Code: 
cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libumfpack.a /data/local/usr/lib
cp Include/umfpack.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libumfpack.a
chmod 0644 /data/local/usr/include/umfpack.h

CXSparse 2.2.6
Code: 
cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libcxsparse.a /data/local/usr/lib
cp Include/cs.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libcxsparse.a
chmod 0644 /data/local/usr/include/cs.h

ARPACK 96
I edited the ARmake.inc file:
Code: 
  home = $(HOME)/builds/ARPACK
  DIRS         = $(UTILdir) $(SRCdir)
  ARPACKLIB  = $(home)/libarpack.a
  LAPACKLIB = /data/local/usr/lib/lapack.a  
  BLASLIB = /data/local/usr/lib/blas.a
  #PLAT = SUN4
  FC      = arm-vfp-linux-gnueabi-gfortran
  FFLAGS  = -O  
  MAKE    = make
  SHELL   = sh
  AR = arm-vfp-linux-gnueabi-ar
  RANLIB   = arm-vfp-linux-gnueabi-ranlib
and then compiled with
Code: 
make lib
cp libarpack.a /data/local/usr/lib

fftw 3.3.1
Code: 
./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi --enable-shared
make
make install

glpk 4.47
Code: 
./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi
make
make install

QRupdate 1.1.1
I edited Makeconf:
Code: 
  FC=arm-vfp-linux-gnueabi-gfortran
  #BLAS=-lblas
  #LAPACK=-llapack
  PREFIX=/data/local/usr
and compiled with
Code: 
make solib
cp libqrupdate.so /data/local/usr/lib/libqrupdate.so.1

qhull 2010.1
I edited directly Makefile this way:
Code: 
  BINDIR  = /data/local/usr/bin
  MANDIR  = /data/local/usr/man/man1
  CC  = arm-vfp-linux-gnueabi-gcc
  #       ar -r libqhull.a $(OBJS)
          arm-vfp-linux-gnueabi-ar -r libqhull.a $(OBJS)
  #       -test -x /bin/ranlib -o -x /usr/bin/ranlib && ranlib libqhull.a
          arm-vfp-linux-gnueabi-ranlib libqhull.a
removing lines where test programs are lanched (arm binaries on linux host don't obviously work) and compiling
Code: 
make
make install
cp libqhull.a /data/local/usr/lib
mkdir /data/local/usr/include/qhull
cp qhull_a.h /data/local/usr/include/qhull/qhull_a.h
chmod 0644 /data/local/usr/lib/libqhull.a 
chmod 0644 /data/local/usr/include/qhull/qhull_a.h

PCRE 8.30
Code: 
./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi
make
make install


Chapter 3 - compiling octave 3.2.4

configure script
I removed from the configure script few lines, where it tries to launch test programs failing (arm binaries on i686 machine...)

This is the 'diff' output after editing:
Code: 
14710,14714c14710,14714
<   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
< $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
< as_fn_error "cannot run test program while cross compiling
< See \`config.log' for more details." "$LINENO" 5; }
< else
---
> #  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
> #$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
> #as_fn_error "cannot run test program while cross compiling
> #See \`config.log' for more details." "$LINENO" 5; }
> #else
15763,15767c15763,15767
<   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
< $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
< as_fn_error "cannot run test program while cross compiling
< See \`config.log' for more details." "$LINENO" 5; }
< else
---
> #  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
> #$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
> #as_fn_error "cannot run test program while cross compiling
> #See \`config.log' for more details." "$LINENO" 5; }
> #else

configuration options
Code: 
CPPFLAGS="-I/data/local/usr/include" LDFLAGS="-L/data/local/usr/lib" ./configure --host=arm-vfp-linux-gnueabi --with-x=no --prefix=/data/local/usr --with-blas=/data/local/usr/lib/blas.a --with-lapack=/data/local/usr/lib/liblapack.a --disable-freetypetest --without-framework-carbon --without-framework-opengl --disable-docs

Actually I cannot set correctly umfpack, cholmod, arpack, fftw and qhull (working on them)

configuration TRICK
I took several days to figure out this trick: even if I disable "native graphics", opengl and "carbon framework" I got errors dealing with Linux X-Windows System...

Finally, I removed from two lines in config.status script (generated with the previous command) any reference to X_WINDOWS:
Code: 
-DHAVE_X_WINDOWS=1
and
Code: 
D["HAVE_X_WINDOWS"]=" 1"

And I relaunched immediately config.status to propagate these options:
Code: 
./config.status

compiler time
Code: 
make
make install

Yes... That's All :rolleyes:


Chapter 4 - Post Install tweaks
I decided to compile octave with shared libraries to avoid very huge binaries...
...So, first of all, I strip unwanted debug symbols from all libraries and binaries, saving about 200Mb...
Code: 
arm-vfp-linux-gnueabi-strip --strip-unneeded /data/local/usr/lib/octave-3.2.4/*
arm-vfp-linux-gnueabi-strip --strip-unneeded /data/local/usr/lib/* 2>/dev/null
arm-vfp-linux-gnueabi-strip --strip-debug /data/local/usr/bin/* 2>/dev/null

Now I must deal with libraries who want references to my cross toolchain inside my PC..
using a program called patchelf I check binaries and libraries one by one changing links from my PC to the generic /data/local/usr wherever it is... :cool:
Code: 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libz.so.1.2.6
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libc.so.6
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libdl.so.2
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libm.so.6
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libgcc_s.so.1
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libstdc++.so.6
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libpthread.so.0
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/liblzma.so.5.0.3
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libform.so.5.9
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libmenu.so.5.9
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libncurses.so.5.9
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libpanel.so.5.9
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/clear
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/infocmp
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/tabs
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/tic
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/toe
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/tput
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/tset
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libgfortran.so.3
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libfftw3.so.3.3.1
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libglpk.so.0.32.0
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libqrupdate.so.1
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qconvex 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qdelaunay 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qhalf 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qhull 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qvoronoi 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/rbox
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libpcre.so.1.0.0
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libpcrecpp.so.0.0.0
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/octave-3.2.4
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/octave-3.2.4/libcruft.so.3.2.4 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/octave-3.2.4/liboctinterp.so.3.2.4 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/octave-3.2.4/liboctave.so.3.2.4
After that I remove symbolic links, not needed on Android while not compiling there anything else (...for now...), some static libraries and duplicates not needed too:
Code: 
rm /data/local/usr/lib/libz.a
rm /data/local/usr/lib/libz.so
rm /data/local/usr/lib/libz.so.1
mv /data/local/usr/lib/libz.so.1.2.6 /data/local/usr/lib/libz.so.1
rm /data/local/usr/lib/liblzma.{a,la}
rm /data/local/usr/lib/liblzma.so
rm /data/local/usr/lib/liblzma.so.5
mv /data/local/usr/lib/liblzma.so.5.0.3 /data/local/usr/lib/liblzma.so.5
rm /data/local/usr/lib/lib{form,form_g,menu,menu_g,ncurses++,ncurses,ncurses_g,panel,panel_g}.a
rm /data/local/usr/lib/libform.so
rm /data/local/usr/lib/libform.so.5
mv /data/local/usr/lib/libform.so.5.9 /data/local/usr/lib/libform.so.5
rm /data/local/usr/lib/libmenu.so
rm /data/local/usr/lib/libmenu.so.5
mv /data/local/usr/lib/libmenu.so.5.9 /data/local/usr/lib/libmenu.so.5
rm /data/local/usr/lib/libncurses.so
rm /data/local/usr/lib/libncurses.so.5
mv /data/local/usr/lib/libncurses.so.5.9 /data/local/usr/lib/libncurses.so.5
rm /data/local/usr/lib/libpanel.so
rm /data/local/usr/lib/libpanel.so.5
mv /data/local/usr/lib/libpanel.so.5.9 /data/local/usr/lib/libpanel.so.5
rm /data/local/usr/lib/lib{history,readline}.a
rm /data/local/usr/lib/libhistory.so
rm /data/local/usr/lib/libhistory.so.6
mv /data/local/usr/lib/libhistory.so.6.2 /data/local/usr/lib/libhistory.so.6
rm /data/local/usr/lib/libreadline.so
rm /data/local/usr/lib/libreadline.so.6
mv /data/local/usr/lib/libreadline.so.6.2 /data/local/usr/lib/libreadline.so.6
rm /data/local/usr/lib/libfftw3.{a,la} 
rm /data/local/usr/lib/libfftw3.so
rm /data/local/usr/lib/libfftw3.so.3
mv /data/local/usr/lib/libfftw3.so.3.3.1 /data/local/usr/lib/libfftw3.so.3
rm /data/local/usr/lib/libglpk.{a,la}
rm /data/local/usr/lib/libglpk.so
rm /data/local/usr/lib/libglpk.so.0
mv /data/local/usr/lib/libglpk.so.0.32.0 /data/local/usr/lib/libglpk.so.0
rm /data/local/usr/lib/libpcre.{a,la}
rm /data/local/usr/lib/libpcrecpp.{a,la}
rm /data/local/usr/lib/libpcreposix.{a,la}
rm /data/local/usr/lib/libpcre.so
rm /data/local/usr/lib/libpcre.so.1
mv /data/local/usr/lib/libpcre.so.1.0.0 /data/local/usr/lib/libpcre.so.1
rm /data/local/usr/lib/libpcrecpp.so
rm /data/local/usr/lib/libpcrecpp.so.0
mv /data/local/usr/lib/libpcrecpp.so.0.0.0 /data/local/usr/lib/libpcrecpp.so.0
rm /data/local/usr/lib/libpcreposix.so
rm /data/local/usr/lib/libpcreposix.so.0
mv /data/local/usr/lib/libpcreposix.so.0.0.0 /data/local/usr/lib/libpcreposix.so.0
mv /data/local/usr/lib/octave-3.2.4/* /data/local/usr/lib
rmdir /data/local/usr/lib/octave-3.2.4/
rm /data/local/usr/lib/libcruft.so
mv /data/local/usr/lib/libcruft.so.3.2.4 /data/local/usr/lib/libcruft.so
rm /data/local/usr/lib/liboctave.so
mv /data/local/usr/lib/liboctave.so.3.2.4 /data/local/usr/lib/liboctave.so
rm /data/local/usr/lib/liboctinterp.so 
mv /data/local/usr/lib/liboctinterp.so.3.2.4 /data/local/usr/lib/liboctinterp.so
chmod 0644 /data/local/usr/lib/lib*
chmod 0755 /data/local/usr/lib/ld-linux.so.3


wow... did I really do this? I don't believe it... :eek:


Chapter 5 - Final stuffs and packaging
I created a really simple bash script to use like a wrapper for the octave binary:
Code: 
echo '#!/system/bin/sh' > /data/local/octave.sh
echo "export HOME=/data/local/tmp" >> /data/local/octave.sh
echo "/data/local/usr/lib/ld-linux.so.3 /data/local/usr/bin/octave" >> /data/local/octave.sh
chmod 0755 /data/local/octave.sh

This wrapper is mandatory! I don't want to change the phone behaviour changing libraries path and similar environment variables... I could make unusable something else already installed on the phone...
I prefer to call the binary with this command
Code: 
/data/local/usr/lib/ld-linux.so.3 /data/local/usr/bin/octave
and after that any binary or Library perfectly knows where to find what needed: /data/local/usr

root permissions and packaging
I issued these commands from my PC as superuser fixing octave permissions to the phone "shell" user... I'll use it later on the phone...
Code: 
chown -R 2000:2000 /data/local/usr
chown -R 2000:2000 /data/local/octave.sh
cd /data/local
tar -cpf octave.tar octave.sh usr/
gzip octave.tar
chown -R 2000:2000 /data/local/octave.tar.gz

Finally I copy the archive onto the Sdcard
Code: 
adb push /data/local/octave.tar.gz /sdcard/

and from there I install in the right place (rooted phone needed here!) with these "adb shell" commands:
Code: 
$ su
# cd /data/local
# tar xpf /sdcard/octave.tar.gz
# exit
$


Chapter 6 - Daily usage
from "adb shell" or "Terminal Emulator" (no root needed anymore) I simply call the wrapper:
Code: 
$ [b]/data/local/octave.sh[/b]
[color=gray]GNU Octave, version 3.2.4
Copyright (C) 2009 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type `warranty'.

Octave was configured for "arm-vfp-linux-gnueabi".

Additional information about Octave is available at http://www.octave.org.

Please contribute if you find this software useful.
For more information, visit http://www.octave.org/help-wanted.html

Report bugs to <bug@octave.org> (but first, please read
http://www.octave.org/bugs.html to learn how to write a helpful report).

For information about changes from previous versions, type `news'.

octave:1>  [/color]

:cool:

This is the link to the last version of the binary (140Mb huge)
 
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syntesys

syntesys

Senior Member
Oct 11, 2011
377
60
Cagliari
Hi to all. I tried to run octave from sd but i have the error "permission denied". I have to run this program only from /data/local? I don't have enough space...

This is a great project! :)
 
Doc_cheilvenerdi.org

Doc_cheilvenerdi.org

Senior Member
Oct 11, 2011
127
349
Ferrara - Ravenna
Not enough space? Now Octave asks for 10Kb max...

First of all really many thanks to mortadelax, who's helping me around an "octave reboot issue on Xperia mini"; not solved yet, but we figured out a method to launch octave binary from SDCard... only 10Kb needed on internal memory :cool:
...maybe a bit slower but now usable on low memory phones too...
Just a step back anyway: this release lack several math stuffs, which will be added as soon as possible... we used a different toolchain and a different "shared libraries approach" (I'll explain everything later on) on a bare octave suite...

What's the trick?
Almost any android kernel has the loopback device support built in... let's use it!
By the way we need a rooted/busyboxed phone otherwise the trick will not work...


HOWTO
1)
In this archive (octave-3.2.4-shell_files.tar) we find three shell scripts. We need to put them into

/data/local/

as usual...


2)
Download the octave archive (octave-3.2.4.disk.gz) and unzip it into the sdcard. You'll get this file:

/sdcard/octave-3.2.4.disk

it's a file with a true filesystem inside.


3)
Use the first script provided from the terminal of your choice being superuser:
Code: 
$ su
# /data/local/octave-mount.sh
Mounting octave Disk...
All done!
Remember to unmount octave disk when finished with it.
#

This script Tells Android to use the latter file exactly like an Hard Disk (it's called loopback device) starting from /data/local/usr/ folder as usual.


4)
Octave on the Rock!
Use the second script provided to use octave as you wish; no need to be superuser:
Code: 
$ [b]/data/local/octave.sh[/b]
[color=gray]GNU Octave, version 3.2.4
Copyright (C) 2009 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type `warranty'.

Octave was configured for "arm-214-linux-gnueabi".

Additional information about Octave is available at http://www.octave.org.

Please contribute if you find this software useful.
For more information, visit http://www.octave.org/help-wanted.html

Report bugs to <bug@octave.org> (but first, please read
http://www.octave.org/bugs.html to learn how to write a helpful report).

For information about changes from previous versions, type `news'.

octave-3.2.4:1>[/color]

If you need to save workspace, or something else, to disk you'll find everything in the SDcard in a folder called /sdcard/octave-3.2.4. When finished your math jobs simply exit from octave:
Code: 
octave-3.2.4:46> exit

$


5)
Use the third script provided to tell Android to close the loopback device (root user needed):
Code: 
# /data/local/octave-unmount.sh
UnMounting octave Disk...
All done!
#

That's all :cool:


Now working on a release full of math stuffs... please hold on!
 
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    Doc_cheilvenerdi.org
    Doc_cheilvenerdi.org
    Who nowadays doesn't need, while on train, to know the eigenvalues of a square matrix?

    eigenvalues.png

    ...or don't you ever need to immediately solve a polinomial equation while on Holidays?

    polinomial.png


    For all these - and even more - already exists a great Open Source Software called

    OCTAVE

    octave.png


    Well, stating that I'm not a true developer nor a true mathematician and that I needed a lot of time and a lot of googling, I was able to compile an Octave Working binary for Android :)!


    Here there is a stripped archive ready to be unpacked into /data/local (octave.tar.gz) but, beware, it's 93Mb weighty, so you must check for enough free space in your internal memory...
    I'm on a Galaxy Mini with Internal Memory expanded onto SD Card, so no problems for me... (- - - [ EDIT:in post n. 5 you find a tricked release with non need of internal memory :cool: ]- - - )

    - - - [ EDIT: In my next post you find an updated version with readline and many more math stuffs compiled in! ] - - -

    Once Unpacked you can simply run it from PC with "adb shell" or directly from the phone with a "Terminal Emulator" application, typing the following command:

    Code: 
    $ /data/local/octave.sh

    P.S, You probably need a rooted phone to extract the archive into /data/local but, after that, you can use it without any root permission...

    Actually I disabled many octave features to build it ("native graphics", "opengl", "texinfo" and many others) and fixed the "library run path" of the shared objects immediately after...
    This means that you must run the binary on /data/local, otherwise it will not work (not finding dependencies and needed shared libraries)...
    ...working on it...
    View
    4
    Doc_cheilvenerdi.org
    Doc_cheilvenerdi.org
    Added some stuffs to the octave binary...

    Here there is a new compiled version of octave 3.2.4 for Android...
    Just added support to ncurses and readline and to several math improvements...
    Actually the binary still lacks "arpack", "fftw3", "cholmod", "umfpack" and "qhull" libraries...
    Of course no "native graphics" support (I think I'll cannot do it...) but, so forth, I think it's really a usable version for students and so on...


    HOW I DID IT!

    Chapter 1 - the cross compiler toolchain
    I could not immediately use one of the toolchains freely distributed on the net because they usually lack fortran language, so I made one on my own...
    I work on a Gentoo LinuX Distribution 64Bit No multilib... briefly I made a chroot environment locked to 32bit executables, binaries and libraries... inside that jail I compiled a cross toolchain using the wonderful package "Crossdev"!
    My working parts of the toolchian are:

    binutils-2.22
    gcc-4.5.3 with gfortran enabled
    glibc-2.14.1
    kernel-headers-2.35.7

    Finally I choose the followin tuplet as the name for this local toolchain:

    arm-vfp-linux-gnueabi

    Actually it was a "no effort" step... my Gentoo made everything I asked for :)

    Chapter 2 - compiling octave dependencies from scratch
    I had to compile several dependencies and then octave itself... in the following I report the console commands used for any of them assuming that I'm always inside their working source directory.

    I prepared a sysroot environment on my PC starting from /data/local to meet my android path and to avoid strange configurations during compile time...
    That is: /data/local is /data/local everywhere...


    Man Pages 3.38
    Code: 
    make prefix=/data/local/usr install

    ZLib 1.26
    Code: 
    CC="arm-vfp-linux-gnueabi-gcc" CXX="arm-vfp-linux-gnueabi-g++" AR="arm-vfp-linux-gnueabi-ar" AS="arm-vfp-linux-gnueabi-as" RANLIB="arm-vfp-linux-gnueabiranlib" LD="arm-vfp-linux-gnueabi-ld" STRIP="arm-vfp-linux-gnueabi-strip" ./configure --prefix=/data/local/usr --shared
make
make install
cp /usr/arm-vfp-linux-gnueabi/lib/libc-2.14.1.so /data/local/usr/lib/libc.so.6
cp /usr/arm-vfp-linux-gnueabi/lib/ld-2.14.1.so /data/local/usr/lib/ld-linux.so.3
cp /usr/arm-vfp-linux-gnueabi/lib/libdl-2.14.1.so /data/local/usr/lib/libdl.so.2
cp /usr/lib/gcc/arm-vfp-linux-gnueabi/4.5.3/libgcc_s.so /data/local/usr/lib/
cp /usr/lib/gcc/arm-vfp-linux-gnueabi/4.5.3/libgcc_s.so.1 /data/local/usr/lib/
cp /usr/arm-vfp-linux-gnueabi/lib/libm-2.14.1.so /data/local/usr/lib/libm.so.6
cp /usr/lib/gcc/arm-vfp-linux-gnueabi/4.5.3/libstdc++.so.6.0.14 /data/local/usr/lib/libstdc++.so.6
cp /usr/arm-vfp-linux-gnueabi/lib/libpthread-2.14.1.so /data/local/usr/lib/libpthread.so.0

    XZ 5.0.3
    Code: 
    ./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi
make
make install

    Ncurses 5.9
    Code: 
    ./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi --with-shared
            getting this message: ** Include-directory is not in a standard location
make
make install

    ReadLine 6.2
    Code: 
    ./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi --with-curses
make
make install

    BLAS (march 2007)
    I edited the make.inc file adding/changing the following lines:
    Code: 
      #PLAT = _LINUX
  FORTRAN  = arm-vfp-linux-gnueabi-gfortran
  LOADER   = arm-vfp-linux-gnueabi-gfortran
  ARCH     = arm-vfp-linux-gnueabi-ar
  RANLIB   = arm-vfp-linux-gnueabi-ranlib
    and the compiled with
    Code: 
    make clean
make
cp blas.a /data/local/usr/lib/
cp /usr/lib/gcc/arm-vfp-linux-gnueabi/4.5.3/libgfortran.so.3.0.0 /data/local/usr/lib/libgfortran.so.3

    Lapack 3.4.0
    I edited the make.inc file adding/changing the following lines:
    Code: 
      FORTRAN  = arm-vfp-linux-gnueabi-gfortran
  LOADER   = arm-vfp-linux-gnueabi-gfortran
  ARCH     = arm-vfp-linux-gnueabi-ar
  RANLIB   = arm-vfp-linux-gnueabi-ranlib
  BLASLIB      = /data/local/usr/lib/blas.a
    and then compiled with
    Code: 
    cd SRC
make clean
make
cd ..
cp lib{lapack,tmglib}.a /data/local/usr/lib/

    UFconfig 3.7.0
    Code: 
    CC="arm-vfp-linux-gnueabi-gcc" CXX="arm-vfp-linux-gnueabi-g++" AR="arm-vfp-linux-gnueabi-ar" AS="arm-vfp-linux-gnueabi-as" RANLIB="arm-vfp-linux-gnueabiranlib" LD="arm-vfp-linux-gnueabi-ld" STRIP="arm-vfp-linux-gnueabi-strip" make
cp libufconfig.a /data/local/usr/lib
cp UFconfig.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libufconfig.a
chmod 0644 /data/local/usr/include/UFconfig.h

    AMD 2.2.3
    Code: 
    cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libamd.a /data/local/usr/lib
cp Include/amd.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libamd.a
chmod 0644 /data/local/usr/include/amd.h

    CAMD 2.2.3
    Code: 
    cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libcamd.a /data/local/usr/lib
cp Include/camd.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libcamd.a
chmod 0644 /data/local/usr/include/camd.h

    COLAMD 2.7.4
    Code: 
    cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libcolamd.a /data/local/usr/lib
cp Include/colamd.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libcolamd.a
chmod 0644 /data/local/usr/include/colamd.h

    CCOLAMD 2.7.4
    Code: 
    cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libccolamd.a /data/local/usr/lib
cp Include/ccolamd.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libccolamd.a
chmod 0644 /data/local/usr/include/ccolamd.h

    CHOLMOD
    Code: 
    cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libcholmod.a /data/local/usr/lib
cp Include/cholmod.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libcholmod.a
chmod 0644 /data/local/usr/include/cholmod.h

    UMFPACK 5.5.2
    Code: 
    cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libumfpack.a /data/local/usr/lib
cp Include/umfpack.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libumfpack.a
chmod 0644 /data/local/usr/include/umfpack.h

    CXSparse 2.2.6
    Code: 
    cd Lib
CC="arm-vfp-linux-gnueabi-gcc" Cf="arm-vfp-linux-gnueabi-gfortran" ARCHIVE="arm-vfp-linux-gnueabi-ar" RANLIB="arm-vfp-linux-gnueabiranlib" make
cd ..
cp Lib/libcxsparse.a /data/local/usr/lib
cp Include/cs.h /data/local/usr/include
chmod 0644 /data/local/usr/lib/libcxsparse.a
chmod 0644 /data/local/usr/include/cs.h

    ARPACK 96
    I edited the ARmake.inc file:
    Code: 
      home = $(HOME)/builds/ARPACK
  DIRS         = $(UTILdir) $(SRCdir)
  ARPACKLIB  = $(home)/libarpack.a
  LAPACKLIB = /data/local/usr/lib/lapack.a  
  BLASLIB = /data/local/usr/lib/blas.a
  #PLAT = SUN4
  FC      = arm-vfp-linux-gnueabi-gfortran
  FFLAGS  = -O  
  MAKE    = make
  SHELL   = sh
  AR = arm-vfp-linux-gnueabi-ar
  RANLIB   = arm-vfp-linux-gnueabi-ranlib
    and then compiled with
    Code: 
    make lib
cp libarpack.a /data/local/usr/lib

    fftw 3.3.1
    Code: 
    ./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi --enable-shared
make
make install

    glpk 4.47
    Code: 
    ./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi
make
make install

    QRupdate 1.1.1
    I edited Makeconf:
    Code: 
      FC=arm-vfp-linux-gnueabi-gfortran
  #BLAS=-lblas
  #LAPACK=-llapack
  PREFIX=/data/local/usr
    and compiled with
    Code: 
    make solib
cp libqrupdate.so /data/local/usr/lib/libqrupdate.so.1

    qhull 2010.1
    I edited directly Makefile this way:
    Code: 
      BINDIR  = /data/local/usr/bin
  MANDIR  = /data/local/usr/man/man1
  CC  = arm-vfp-linux-gnueabi-gcc
  #       ar -r libqhull.a $(OBJS)
          arm-vfp-linux-gnueabi-ar -r libqhull.a $(OBJS)
  #       -test -x /bin/ranlib -o -x /usr/bin/ranlib && ranlib libqhull.a
          arm-vfp-linux-gnueabi-ranlib libqhull.a
    removing lines where test programs are lanched (arm binaries on linux host don't obviously work) and compiling
    Code: 
    make
make install
cp libqhull.a /data/local/usr/lib
mkdir /data/local/usr/include/qhull
cp qhull_a.h /data/local/usr/include/qhull/qhull_a.h
chmod 0644 /data/local/usr/lib/libqhull.a 
chmod 0644 /data/local/usr/include/qhull/qhull_a.h

    PCRE 8.30
    Code: 
    ./configure --prefix=/data/local/usr --host=arm-vfp-linux-gnueabi
make
make install


    Chapter 3 - compiling octave 3.2.4

    configure script
    I removed from the configure script few lines, where it tries to launch test programs failing (arm binaries on i686 machine...)

    This is the 'diff' output after editing:
    Code: 
    14710,14714c14710,14714
<   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
< $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
< as_fn_error "cannot run test program while cross compiling
< See \`config.log' for more details." "$LINENO" 5; }
< else
---
> #  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
> #$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
> #as_fn_error "cannot run test program while cross compiling
> #See \`config.log' for more details." "$LINENO" 5; }
> #else
15763,15767c15763,15767
<   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
< $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
< as_fn_error "cannot run test program while cross compiling
< See \`config.log' for more details." "$LINENO" 5; }
< else
---
> #  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
> #$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
> #as_fn_error "cannot run test program while cross compiling
> #See \`config.log' for more details." "$LINENO" 5; }
> #else

    configuration options
    Code: 
    CPPFLAGS="-I/data/local/usr/include" LDFLAGS="-L/data/local/usr/lib" ./configure --host=arm-vfp-linux-gnueabi --with-x=no --prefix=/data/local/usr --with-blas=/data/local/usr/lib/blas.a --with-lapack=/data/local/usr/lib/liblapack.a --disable-freetypetest --without-framework-carbon --without-framework-opengl --disable-docs

    Actually I cannot set correctly umfpack, cholmod, arpack, fftw and qhull (working on them)

    configuration TRICK
    I took several days to figure out this trick: even if I disable "native graphics", opengl and "carbon framework" I got errors dealing with Linux X-Windows System...

    Finally, I removed from two lines in config.status script (generated with the previous command) any reference to X_WINDOWS:
    Code: 
    -DHAVE_X_WINDOWS=1
    and
    Code: 
    D["HAVE_X_WINDOWS"]=" 1"

    And I relaunched immediately config.status to propagate these options:
    Code: 
    ./config.status

    compiler time
    Code: 
    make
make install

    Yes... That's All :rolleyes:


    Chapter 4 - Post Install tweaks
    I decided to compile octave with shared libraries to avoid very huge binaries...
    ...So, first of all, I strip unwanted debug symbols from all libraries and binaries, saving about 200Mb...
    Code: 
    arm-vfp-linux-gnueabi-strip --strip-unneeded /data/local/usr/lib/octave-3.2.4/*
arm-vfp-linux-gnueabi-strip --strip-unneeded /data/local/usr/lib/* 2>/dev/null
arm-vfp-linux-gnueabi-strip --strip-debug /data/local/usr/bin/* 2>/dev/null

    Now I must deal with libraries who want references to my cross toolchain inside my PC..
    using a program called patchelf I check binaries and libraries one by one changing links from my PC to the generic /data/local/usr wherever it is... :cool:
    Code: 
    patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libz.so.1.2.6
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libc.so.6
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libdl.so.2
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libm.so.6
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libgcc_s.so.1
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libstdc++.so.6
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libpthread.so.0
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/liblzma.so.5.0.3
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libform.so.5.9
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libmenu.so.5.9
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libncurses.so.5.9
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libpanel.so.5.9
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/clear
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/infocmp
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/tabs
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/tic
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/toe
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/tput
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/tset
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libgfortran.so.3
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libfftw3.so.3.3.1
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libglpk.so.0.32.0
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libqrupdate.so.1
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qconvex 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qdelaunay 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qhalf 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qhull 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/qvoronoi 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/rbox
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libpcre.so.1.0.0
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/libpcrecpp.so.0.0.0
patchelf --set-rpath /data/local/usr/lib /data/local/usr/bin/octave-3.2.4
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/octave-3.2.4/libcruft.so.3.2.4 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/octave-3.2.4/liboctinterp.so.3.2.4 
patchelf --set-rpath /data/local/usr/lib /data/local/usr/lib/octave-3.2.4/liboctave.so.3.2.4
    After that I remove symbolic links, not needed on Android while not compiling there anything else (...for now...), some static libraries and duplicates not needed too:
    Code: 
    rm /data/local/usr/lib/libz.a
rm /data/local/usr/lib/libz.so
rm /data/local/usr/lib/libz.so.1
mv /data/local/usr/lib/libz.so.1.2.6 /data/local/usr/lib/libz.so.1
rm /data/local/usr/lib/liblzma.{a,la}
rm /data/local/usr/lib/liblzma.so
rm /data/local/usr/lib/liblzma.so.5
mv /data/local/usr/lib/liblzma.so.5.0.3 /data/local/usr/lib/liblzma.so.5
rm /data/local/usr/lib/lib{form,form_g,menu,menu_g,ncurses++,ncurses,ncurses_g,panel,panel_g}.a
rm /data/local/usr/lib/libform.so
rm /data/local/usr/lib/libform.so.5
mv /data/local/usr/lib/libform.so.5.9 /data/local/usr/lib/libform.so.5
rm /data/local/usr/lib/libmenu.so
rm /data/local/usr/lib/libmenu.so.5
mv /data/local/usr/lib/libmenu.so.5.9 /data/local/usr/lib/libmenu.so.5
rm /data/local/usr/lib/libncurses.so
rm /data/local/usr/lib/libncurses.so.5
mv /data/local/usr/lib/libncurses.so.5.9 /data/local/usr/lib/libncurses.so.5
rm /data/local/usr/lib/libpanel.so
rm /data/local/usr/lib/libpanel.so.5
mv /data/local/usr/lib/libpanel.so.5.9 /data/local/usr/lib/libpanel.so.5
rm /data/local/usr/lib/lib{history,readline}.a
rm /data/local/usr/lib/libhistory.so
rm /data/local/usr/lib/libhistory.so.6
mv /data/local/usr/lib/libhistory.so.6.2 /data/local/usr/lib/libhistory.so.6
rm /data/local/usr/lib/libreadline.so
rm /data/local/usr/lib/libreadline.so.6
mv /data/local/usr/lib/libreadline.so.6.2 /data/local/usr/lib/libreadline.so.6
rm /data/local/usr/lib/libfftw3.{a,la} 
rm /data/local/usr/lib/libfftw3.so
rm /data/local/usr/lib/libfftw3.so.3
mv /data/local/usr/lib/libfftw3.so.3.3.1 /data/local/usr/lib/libfftw3.so.3
rm /data/local/usr/lib/libglpk.{a,la}
rm /data/local/usr/lib/libglpk.so
rm /data/local/usr/lib/libglpk.so.0
mv /data/local/usr/lib/libglpk.so.0.32.0 /data/local/usr/lib/libglpk.so.0
rm /data/local/usr/lib/libpcre.{a,la}
rm /data/local/usr/lib/libpcrecpp.{a,la}
rm /data/local/usr/lib/libpcreposix.{a,la}
rm /data/local/usr/lib/libpcre.so
rm /data/local/usr/lib/libpcre.so.1
mv /data/local/usr/lib/libpcre.so.1.0.0 /data/local/usr/lib/libpcre.so.1
rm /data/local/usr/lib/libpcrecpp.so
rm /data/local/usr/lib/libpcrecpp.so.0
mv /data/local/usr/lib/libpcrecpp.so.0.0.0 /data/local/usr/lib/libpcrecpp.so.0
rm /data/local/usr/lib/libpcreposix.so
rm /data/local/usr/lib/libpcreposix.so.0
mv /data/local/usr/lib/libpcreposix.so.0.0.0 /data/local/usr/lib/libpcreposix.so.0
mv /data/local/usr/lib/octave-3.2.4/* /data/local/usr/lib
rmdir /data/local/usr/lib/octave-3.2.4/
rm /data/local/usr/lib/libcruft.so
mv /data/local/usr/lib/libcruft.so.3.2.4 /data/local/usr/lib/libcruft.so
rm /data/local/usr/lib/liboctave.so
mv /data/local/usr/lib/liboctave.so.3.2.4 /data/local/usr/lib/liboctave.so
rm /data/local/usr/lib/liboctinterp.so 
mv /data/local/usr/lib/liboctinterp.so.3.2.4 /data/local/usr/lib/liboctinterp.so
chmod 0644 /data/local/usr/lib/lib*
chmod 0755 /data/local/usr/lib/ld-linux.so.3


    wow... did I really do this? I don't believe it... :eek:


    Chapter 5 - Final stuffs and packaging
    I created a really simple bash script to use like a wrapper for the octave binary:
    Code: 
    echo '#!/system/bin/sh' > /data/local/octave.sh
echo "export HOME=/data/local/tmp" >> /data/local/octave.sh
echo "/data/local/usr/lib/ld-linux.so.3 /data/local/usr/bin/octave" >> /data/local/octave.sh
chmod 0755 /data/local/octave.sh

    This wrapper is mandatory! I don't want to change the phone behaviour changing libraries path and similar environment variables... I could make unusable something else already installed on the phone...
    I prefer to call the binary with this command
    Code: 
    /data/local/usr/lib/ld-linux.so.3 /data/local/usr/bin/octave
    and after that any binary or Library perfectly knows where to find what needed: /data/local/usr

    root permissions and packaging
    I issued these commands from my PC as superuser fixing octave permissions to the phone "shell" user... I'll use it later on the phone...
    Code: 
    chown -R 2000:2000 /data/local/usr
chown -R 2000:2000 /data/local/octave.sh
cd /data/local
tar -cpf octave.tar octave.sh usr/
gzip octave.tar
chown -R 2000:2000 /data/local/octave.tar.gz

    Finally I copy the archive onto the Sdcard
    Code: 
    adb push /data/local/octave.tar.gz /sdcard/

    and from there I install in the right place (rooted phone needed here!) with these "adb shell" commands:
    Code: 
    $ su
# cd /data/local
# tar xpf /sdcard/octave.tar.gz
# exit
$


    Chapter 6 - Daily usage
    from "adb shell" or "Terminal Emulator" (no root needed anymore) I simply call the wrapper:
    Code: 
    $ [b]/data/local/octave.sh[/b]
[color=gray]GNU Octave, version 3.2.4
Copyright (C) 2009 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type `warranty'.

Octave was configured for "arm-vfp-linux-gnueabi".

Additional information about Octave is available at http://www.octave.org.

Please contribute if you find this software useful.
For more information, visit http://www.octave.org/help-wanted.html

Report bugs to <bug@octave.org> (but first, please read
http://www.octave.org/bugs.html to learn how to write a helpful report).

For information about changes from previous versions, type `news'.

octave:1>  [/color]

    :cool:

    This is the link to the last version of the binary (140Mb huge)
    View
    3
    Doc_cheilvenerdi.org
    Doc_cheilvenerdi.org
    Not enough space? Now Octave asks for 10Kb max...

    First of all really many thanks to mortadelax, who's helping me around an "octave reboot issue on Xperia mini"; not solved yet, but we figured out a method to launch octave binary from SDCard... only 10Kb needed on internal memory :cool:
    ...maybe a bit slower but now usable on low memory phones too...
    Just a step back anyway: this release lack several math stuffs, which will be added as soon as possible... we used a different toolchain and a different "shared libraries approach" (I'll explain everything later on) on a bare octave suite...

    What's the trick?
    Almost any android kernel has the loopback device support built in... let's use it!
    By the way we need a rooted/busyboxed phone otherwise the trick will not work...


    HOWTO
    1)
    In this archive (octave-3.2.4-shell_files.tar) we find three shell scripts. We need to put them into

    /data/local/

    as usual...


    2)
    Download the octave archive (octave-3.2.4.disk.gz) and unzip it into the sdcard. You'll get this file:

    /sdcard/octave-3.2.4.disk

    it's a file with a true filesystem inside.


    3)
    Use the first script provided from the terminal of your choice being superuser:
    Code: 
    $ su
# /data/local/octave-mount.sh
Mounting octave Disk...
All done!
Remember to unmount octave disk when finished with it.
#

    This script Tells Android to use the latter file exactly like an Hard Disk (it's called loopback device) starting from /data/local/usr/ folder as usual.


    4)
    Octave on the Rock!
    Use the second script provided to use octave as you wish; no need to be superuser:
    Code: 
    $ [b]/data/local/octave.sh[/b]
[color=gray]GNU Octave, version 3.2.4
Copyright (C) 2009 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type `warranty'.

Octave was configured for "arm-214-linux-gnueabi".

Additional information about Octave is available at http://www.octave.org.

Please contribute if you find this software useful.
For more information, visit http://www.octave.org/help-wanted.html

Report bugs to <bug@octave.org> (but first, please read
http://www.octave.org/bugs.html to learn how to write a helpful report).

For information about changes from previous versions, type `news'.

octave-3.2.4:1>[/color]

    If you need to save workspace, or something else, to disk you'll find everything in the SDcard in a folder called /sdcard/octave-3.2.4. When finished your math jobs simply exit from octave:
    Code: 
    octave-3.2.4:46> exit

$


    5)
    Use the third script provided to tell Android to close the loopback device (root user needed):
    Code: 
    # /data/local/octave-unmount.sh
UnMounting octave Disk...
All done!
#

    That's all :cool:


    Now working on a release full of math stuffs... please hold on!
    View
    2
    roofrider
    roofrider
    U not a true dev Doc?
    U must be kidding, ppl like u are the heartbeat of xda. U must be a Rec Dev!

    Thanks for this...not sure how useful this is going to be for me, always admired ur work!

    edit: sry still have not tried it...i'm thinking of rooting my mini ur way, and will try this after that. I've been using cm7 but now back to stock to try a few things :D ur things.
    View

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