[PATCH] build: Use build context for custom commands

[Sebastian Huber]

On 12.09.23 08:49, Chris Johns wrote:
> On 12/9/2023 2:15 pm, Sebastian Huber wrote:
>> On 12.09.23 03:26, Chris Johns wrote:
>>> On 11/9/2023 7:37 pm, Sebastian Huber wrote:
>>>> Revert duplicated listing of TEST_OPTIMIZATION_FLAGS.
>>> Thank you for picking this up.
>>>
>>> Does this change let the user control TEST_OPTIMIZATION_FLAGS and
>>> OPTIMIZATION_FLAGS via a BSP setting in config.ini?
>> No, this patch fixes the bld.asm(), bld.cc(), and bld.cxx() functions to use the
>> build item context for the flags.
> Sure and thanks.

Ok, good. Is the patch all right to commit?

> 
>> Setting OPTIMIZATION_FLAGS and TEST_OPTIMIZATION_FLAGS through the configuration
>> file always worked.
> Great. I am seeing:
> 
> OPTIMIZATION_FLAGS = -O2 -g -fdata-sections -ffunction-sections
> 
> and data sections is an optimisation however does it complicates things for the
> user if they play with with just -O2?
> 
> 1. -g is debug info and not optimisation
> 
> 2. we recommend building RTEMS with -fdata-sections -ffunction-sections so I
> guess removing them would not be good

We can easily split up the OPTIMIZATION_FLAGS and add more options. For 
example:

DEBUG_FLAGS = -g

OPTIMIZATION_FLAGS = -O2 -fdata-sections -ffunction-sections

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