New Build System Status

[Peter Dufault]

> On Nov 15, 2019, at 10:05 , Sebastian Huber <sebastian.huber at embedded-brains.de> wrote:
> 
> Hello,
> 
> I nearly finished the conversion script for the BSPs. I can now configure 194 BSP variants with the default BSP option values. Some BSPs need modifications by hand, e.g. linker command files and special boot files. There are now about 2000 YAML files. It needs about 11 seconds to build the pickle cache from the YAML files:
> 
> $ time ./waf bsp_list | wc
>    194     194    3238
> 
> real    0m11.324s
> user    0m11.222s
> sys     0m0.075s
> 
> Afterwards it is much faster:
> 
> $ time ./waf bsp_list | wc
>    194     194    3238
> 
> real    0m0.691s
> user    0m0.622s
> sys     0m0.043s
> 
> time ./waf bsp_defaults | wc
>  16794   84819  566576
> 
> real    0m1.127s
> user    0m1.064s
> sys     0m0.049s
> 
> I had no time to work on the user documentation. I will be very busy with other things in the next two or three weeks.
> 
> I made some experiments with the clang compiler and it works in principle. You can configure the compiler per BSP, e.g. you can build the same BSP with gcc and clang in one configuration file. For example:
> 
> [sparc/erc32_gcc]
> COMPILER = gcc
> INHERIT = erc32
> 
> [sparc/erc32_clang]
> COMPILER = clang
> INHERIT = erc32
> 
> -- 
> Sebastian Huber, embedded brains GmbH
> 

I think clang has support for PowerPC/SPE including a FreeBSD port. I hope to get time to test that, but if anyone else is interested and has time please test out building such a BSP.

(PowerPC/SPE is gone in GCC)

Peter
-----------------
Peter Dufault
HD Associates, Inc.      Software and System Engineering

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