On 13/07/2020 02:09, Chris Johns wrote:
On 8/7/20 9:37 pm, Sebastian Huber wrote:
On 08/07/2020 13:34, Chris Johns wrote:
Are these flags needed for all BSPs?
Yes, these flags are needed to build and use libbsd.
Why not define them for all BSPs
In the new build system they are the default.
and for all applications?
I don't think we should mandate any optimization flags for applications.
These flags affect the code generation.
What is special about libbsd that it needs these flags over any other type of
application?
libbsd needs these flags since FreeBSD was not designed as a static
library. In addition, the porting to RTEMS is less intrusive and labour
intensive using these flags.
If so why add to here ...
https://git.rtems.org/rtems/tree/c/src/bsp.pc.in
These are optimization flags. I thought the consensus was to export only ABI
relevant flags in the new build system.
In CFLAGS yes. Pkgconfig files (.pc) support variables and I had always thought
we define a number of RTEMS specific variables and these hold various flags or
commands needed to handle other things, for example the options to mkimage. A
user could then test for a variable and if present know this BSP does or has
extra "what ever".
You mean some sort of recommended optimization flags? We should really
define what the pkg-config files should export so that I can implement
this in the new build system.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
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Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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