Re: How to use Zero Footprint runtime with GNAT GPL 2017

[Lucretia <laguest9000@googlemail.com>]

On Sunday, 16 July 2017 14:39:51 UTC+1, Jacob Sparre Andersen  wrote:
> Lucretia wrote:
> 
> > ZFP means all you have are the compiler intrinsics as language support
> > and nothing else. Although, I modified mine to include a small
> > secondary stack so that indefinites could be returned from functions.
> 
> How much larger does that make the run-time?  (Compiled for ARM, for
> example.)

Intrinsics are supplied by the compiler, not the runtime itself. The basic packages for ZFP are (taken from my osdev article: http://wiki.osdev.org/Ada_Bare_bones#RTS_files_to_copy):

ada.ads, gnat.ads - pure, nothing inside

a-unccon.ads, a-uncdea.ads, g-souinf.ads, interfac.ads, s-maccod.ads - All intrinsics.

s-atacco.adb, s-atacco.ads, s-stoele.adb, s-stoele.ads - these are the only ones which actually has any Ada functions inside.

As for code size, I've no idea as you'd have to look at what the compiler generates for those intrinsics.

Luke.