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Toolchain

To compile the target firmware for OsmocomBB or SIMtrace, you need a GNU Toolchain for ARM. There are various pre-compiled toolchains available, but not all of them will produce working firmware. We're trying to support all these configurations, but it might take a while to identify the source of a problem. If you have persistent errors when compiling, try using a different package.

note: as of 2013-10-20, if you use a toolchain with gcc >=4.8, the firmware can be compiled, but will hang as soon as you want to sync to an ARFCN. This issue has been fixed in master.

Binary distribution

You can use a pre-compiled toolchain provided by your GNU/Linux distribution.

For Debian based distributions (Ubuntu, Linux Mint, etc.), use the following command:

$ sudo apt install gcc-arm-none-eabi

For ArchLinux (https://www.archlinux.org/packages/community/x86_64/arm-none-eabi-gcc/):

$ sudo pacman -S arm-none-eabi-gcc

Build one from source

If you want to build your own toolchain, known to be working with OsmocomBB, see here: GnuArmToolchain.

This is the best option to get a fairly recent GCC, and this is the option used by several OsmocomBB developers.

Mac OS X

Apparently the arm-elf-gcc 4.3.2 from ports for mac os x can compile the sourcecode as well after symlinking /opt/local/bin/arm-elf-ranlib to /opt/local/bin/arm-elf-linux-ranlib and /opt/local/bin/arm-elf-strip to /opt/local/bin/arm-elf-linux-strip.
If you omit the links, there will be unresolvable references to symbols in the libraries.

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