[PATCH 2/2] bsps/arm: Sort fast text/data sections

[Chris Johns]

On 21/10/20 4:31 pm, Sebastian Huber wrote:
> On 21/10/2020 02:25, Chris Johns wrote:
> 
>> On 21/10/20 3:04 am, Sebastian Huber wrote:
>>> ---
>>>   bsps/arm/shared/start/linkcmds.base | 4 ++--
>>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/bsps/arm/shared/start/linkcmds.base
>>> b/bsps/arm/shared/start/linkcmds.base
>>> index d0663cf97e..8fa127ce08 100644
>>> --- a/bsps/arm/shared/start/linkcmds.base
>>> +++ b/bsps/arm/shared/start/linkcmds.base
>>> @@ -290,7 +290,7 @@ SECTIONS {
>>>         .fast_text : ALIGN_WITH_INPUT {
>>>           bsp_section_fast_text_begin = .;
>> What is `fast text` (and fast data)? I have not heard of this before and I
>> cannot find anything on it?
> I added this section 11 years ago as a section for code which could reside in a
> faster memory. For example, normal code could reside on a 16-bit SDRAM and the
> fast code on an internal 32-bit SRAM in a chip without a cache. In the recent
> Cortex-M7 BSPs, the fast text is mapped to the ITCM.

OK. Is anything written up about this? For example is allocating variables
automatic or can I control allocation to it?

Chris