[Buildroot] B3+external kernel: not quite sure how to make these pieces fit ...
g4 at novadsp.com
g4 at novadsp.com
Wed Jun 24 19:06:35 UTC 2015
Want to automate building kernel and filesystem for Beaglebones.
The kernel itself is the mainline 4.x with a set of patches applied from
Robert Nelson's (RCN) GIT repo.
Problem is that there is no mechanism for file system construction/
packaging. Obviously Buildroot to the rescue here.
I thought I'd start by trying to get BR to use the existing external
toolchain - specifying 'toolchain path' as
'~/rcn/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux'
But this fails with 'External toolchain uses the unsuported OABI'. There is
an old reference to this here:
http://git.buildroot.net/buildroot/commit/?id=b2e88073dbf05faa47475bf96d5ccf
8a45906a3c
I don't see any conflict with the target settings. Is there a solution or is
this a more fundamental/complex issue?
This obviously begs the question of how the externally built kernel gets
into the BR mix but I'll leave that for next time.
Thx++
--------------------snip--------------------
Target Architecture (ARM (little endian)) --->
x x
x x Target Binary Format (ELF) --->
x x
x x Target Architecture Variant (cortex-A8) --->
x x
x x Target ABI (EABIhf) --->
x x
x x Floating point strategy (VFPv3-D16) --->
x x
x x ARM instruction set (ARM) --->
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