To the best of my knowledge from when I first was trying to build osmocom-bb, the error you are receiving is a result of gcc for Intel x86/x86_64 trying to compile ARM code. There is no 'eor' instruction for x86, which is why you get that error. When you built the toolchain, you built a copy of gcc that compiles to the ARM architecture. On your system, this compiler should be located at /home/arslan/dir/install/bin/arm-elf-gcc. The message about assuming arm-elf-gcc is inside the current path means your PATH environment variable, not your current working directory. So, if you add /home/arslan/dir/install/bin to your path environment variable, the osmocom-bb build scripts will be able to find arm-elf-gcc there, and you should not receive that error. If you are using bash as your shell, you can accomplish this by issuing the command: export PATH=$PATH:/home/arslan/dir/install/bin Cheers, Rusty D On Mon, Apr 14, 2014 at 7:46 AM, Ahmad Jan <e10007a(a)gmail.com> wrote: > Hi... > I m trying to install osmocom-bb using following link: > > http://bb.osmocom.org/trac/wiki/Software/GettingStarted > > First of all i installed the Dependencies for the host. > > Then for target dependencies, i build my own toolchain using following: > > http://bb.osmocom.org/trac/wiki/GnuArmToolchain > > This toolchain building processes ended up saying: "Build complete! Add > /home/arslan/dir/install/bin to your PATH to make arm-elf-gcc and > friends > accessible directly." > (i don't know building my own toolchain is necessary or not). > > Then i went back for building osmocom-bb > > There i came across getting and updating the source. > > But in building the source section, what it says is: " Compiling both > the > target and the host code will happen with the following command. It > assumes > that the arm-elf-gcc is inside the current path." > > I didn't understand it as my current path is osmocom-bb and there is no > arm-elf-gcc > Can anyone tell me what does it mean? > > Anyways, i just ignored it and went on executing the following command > > cd src/ > make > > So i ended up with an error saying: > /home/arslan/osmocom-bb/src/target/firmware/include/asm/swab.h:32: > Error: no > such instruction: `eor %edx,%r15d,%r15d,ror' > make[4]: *** [gsmtap_util.lo] Error 1 > > I tried to figure it out from Internet. It really didn't work out. > M stuck at this point. > Can anyone help me resolving this problem? > >