[RTEMS Project] #4213: libbsd: Reduce footprint of minimal buildset

RTEMS trac trac at rtems.org
Thu Jan 7 13:49:17 UTC 2021

#4213: libbsd: Reduce footprint of minimal buildset
  Reporter:  Christian Mauderer  |      Owner:  Christian Mauderer
      Type:  project             |     Status:  assigned
  Priority:  normal              |  Milestone:  Indefinite
 Component:  network/libbsd      |    Version:
  Severity:  normal              |   Keywords:  SoC libbsd
Blocked By:                      |   Blocking:
 == Overview

 The RTEMS libbsd is now the default network stack for a lot of BSPs. But
 it's footprint is quite a bit larger then the one of the "legacy" network
 stack. In 2018 we introduced buildsets that allow to disable features.
 Currently only a few features can be disabled (OpenSSL, IPv6). Target of
 this project would be to find more non-essential features that are always
 linked in and allow to disable them.

 == Requirements

 * A target where libbsd can be used. That can be either real hardware or a
 simulator with network support (for example xilinx_zynq_a9_qemu).

 * If you have a real hardware target, you'll most likely need some JTAG
 debugger for it. On a simulator you can use gdb. You have to know how to
 use the debugger.

 * Basic C coding skills and very good skills to read C code. You'll have
 to dig through FreeBSD code which can be quite complex!

 * Quite a bit of knowledge how to analyze generated elf files. You should
 at least be able to use objdump and read linker map files.

 * Ability to build your own RTEMS application outside of the normal test
 tree to test stuff during development.

Ticket URL: <http://devel.rtems.org/ticket/4213>
RTEMS Project <http://www.rtems.org/>
RTEMS Project

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