Reg: POSIX compliant c library

[Norman Feske]

Hi,

On 10.09.2015 10:33, Josef Söntgen wrote:
> There is a libc (based on FreeBSD 8.2.0) that runs directly on top of
> Genode — no Noux runtime envolved. You will find the backend used
> to complement the libc on Genode in 'repos/libports/src/lib/libc'.

just as a quick follow-up, to use the libc, you will need to take the
following steps:

* Download the source code of the FreeBSD libc:

  <genode-dir>/tool/ports/prepare_port libc

  The code will be downloaded to <genode-dir>/contrib/libc-<hash>/

* Specify the libc for your target by adding the following line to
  the target's build-description file (target.mk):

  LIBS += libc

* Enable the 'libports' repository in your <build-dir>/etc/build.conf
  file by uncommenting the corresponding line.

Note that the libc is a shared library. By using it, your program will
implicitly become a dynamically linked executable. Hence, you will need
to incorporate the dynamic linker (ld.lib.so) and the libc (libc.lib.so)
into your boot image (see 'boot_modules' in your run script).

Cheers
Norman

-- 
Dr.-Ing. Norman Feske
Genode Labs

http://www.genode-labs.com · http://genode.org

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