ARM Cortex-M Microcontroller startup files

[Johannes Pfau via Digitalmars-d]

Am Fri, 01 May 2015 06:57:07 +0000
schrieb "Timo Sintonen" <t.sintonen at luukku.com>:

> I think we should omit moduleinfo totally and so we can not have 
> module constructors. I think pointers to static constructors are 
> available in a certain section that I have not in my link script. 
> Adding this section should make them available.

C-like constructors. I've got some old code which allows attaching a
@attribute("cctor") to a extern(C) function to make it a C-constructor.
That code could be revived quickly if it's useful.

Outputting normal D module ctors as C-ctors is  possible but 'hacky':
First, the calling convention doesn't match. In order to be compatible
C-constructors should stay extern(C). Now extern(D/C) are actually the
same for all GDC supported architectures, but still. There's also the
issue that it's a semantic change as you can no longer rely on cycle
detection.

TLDR: I'd prefer using @cctor extern(C) void foo() {} instead of normal
d module ctors.

Bonus points: You can have more than one @cctor per module.