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SubjectRe: [PATCH] mm: fix RODATA_TEST failure "rodata_test: test data was not read only"
On Mon, Sep 25, 2017 at 04:01:55PM +0000, David Laight wrote:
> From: Segher Boessenkool
> > The compiler puts this item in .sdata, for 32-bit. There is no .srodata,
> > so if it wants to use a small data section, it must use .sdata .
> >
> > Non-external, non-referenced symbols are not put in .sdata, that is the
> > difference you see with the "static".
> >
> > I don't think there is a bug here. If you think there is, please open
> > a GCC bug.
>
> The .sxxx sections are for 'small' data that can be accessed (typically)
> using small offsets from a global register.
> This means that all sections must be adjacent in the image.
> So you can't really have readonly small data.
>
> My guess is that the linker script is putting .srodata in with .sdata.

.srodata does not *exist* (in the ABI).


Segher

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