Please keep Freddie in the recipents since it's possible he haven't subscribed.
On 2019-03-07 13:58 +0100, Matthias Pfaller wrote:
> On 03/07/2019 01:16 PM, Freddie Chopin wrote:
> > No worries, it won't optimize them away, there's also a header where
> > these variables are declared with `extern ...` (omitted that in the
> > example, as this doesn't change anything) and all of them will be used
> > in the project. I'm just concerned about their order.
>
> Just put them into a structure. If you need to maintain the old names,
> you can always use #define.
>
> struct {
> int a;
> int b;
> int c;
> } globals;
I think we'll need "extern volatile struct". The access to one volatile struct
is kept even with -O3.
> #define a global.a
> #define b global.b
> #define c global.c
Anyway, using linker script is the right way to do this and I recommend to do
so.
--
Xi Ruoyao <xry111@xxxxxxxxxxxxxxxx>
School of Aerospace Science and Technology, Xidian University
