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Building and Installing a Cross Compiler |
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Prerequisites
You need a native GNAT compiler on your system. Nowadays almost all Linux distributions contain the Ada enabled gcc (≥ 3.4). On MinGW there is a precompiled gcc-3.4.2 with Ada support. You need the GNU binutils and the avr-libc library. The first is available on any GNU mirror. Take at least version 2.14. The latter is available from the AVR libc home page. Any version after 1.0 will do. I use the release 1.2.5. The gcc sources must be from the 3.4 branch of gcc. I did all my tests and modifications on gcc-3.4.4. There is a big delta of the Ada sources between gcc-3.3 and gcc-3.4. If you want to use gcc-3.3, take the old AVR-Ada-V0.1 release. Get the latest patch
from the AVR-Ada project. The same patch is also included in the
full AVR-Ada
package in the directory Building the compiler (the hard way)You first have to build and install the binutils package. To build the binutils use the configure options
This way all files are installed in a separate directory
( Apply the patch to the gcc sources before configuring and compiling. At the configure step ensure that you use the same prefix as for the binutils and that you enable "ada".
The following make will create the C and the basic Ada compiler.
GNAT comes with several very useful utility programs. For building them you have to step into the gcc directory and start cd gcc make cross-gnattools Than go back up again and redo the make step followed by the
final make install. The make command now renames the just built
gnattools to <toolname>-cross. The make install renames the
tools then to avr-<toolname> and copies them into the
installation bin directory ( cd .. make make install Building the compiler (the easy way)
Have a look at the shell scripts |
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