genode

History

Norman Feske fae63f4fa9 Merge base libraries into a single library This patch simplifies the way of how Genode's base libraries are organized. Originally, the base API was implemented in the form of many small libraries such as 'thread', 'env', 'server', etc. Most of them used to consist of only a small number of files. Because those libraries are incorporated in any build, the checking of their inter-dependencies made the build process more verbose than desired. Also, the number of libraries and their roles (core only, non-core only, shared by both core and non-core) were not easy to capture. Hereby, the base libraries have been reduced to the following few libraries: - startup.mk contains the startup code for normal Genode processes. On some platform, core is able to use the library as well. - base-common.mk contains the parts of the base library that are identical by core and non-core processes. - base.mk contains the complete base API implementation for non-core processes Consequently, the 'LIBS' declaration in 'target.mk' files becomes simpler as well. In the most simple case, only the 'base' library must be mentioned. Fixes #18		2013-02-19 14:45:55 +01:00
..
add.cc	Add 'base/src/test/ada', fix #146	2012-03-08 12:32:08 +01:00
main.adb	Add 'base/src/test/ada', fix #146	2012-03-08 12:32:08 +01:00
README	Add 'base/src/test/ada', fix #146	2012-03-08 12:32:08 +01:00
startup.cc	Add 'base/src/test/ada', fix #146	2012-03-08 12:32:08 +01:00
target.mk	Merge base libraries into a single library	2013-02-19 14:45:55 +01:00
test_package.ads	Add 'base/src/test/ada', fix #146	2012-03-08 12:32:08 +01:00

README

This directory contains a test for using freestanding Ada code with Genode.

The program relies on the normal startup procedure of a Genode process.
Execution starts at the 'crt0' assembly entry provided by the startup library.
The 'crt0' code sets up the stack of the main thread and calls the '_main'
function implemented in the C++ portion of Genode's startup library. In turn,
the '_main' function calls 'main' of the actual program. The main function of
this example calls the Ada main procedure. The test further exercises the call
of C functions from Ada code. So the integration of Ada and C code is almost
seamless.

For building the Ada test program, you must have installed the GNU GNAT Ada
compiler. Right now, we are using the host version of this compiler, which
is save as long as we do not use advanced Ada features such as exceptions.
To enable building the test program, add 'gnat' to the 'SPECS' declaration
of your '<builddir>/etc/specs.conf'. Otherwise, the Genode build system
will skip the target.

Please note that the current version of this program does not use 'gnatbind'.
Therefore, package elaboration is not executed.