Re: sections, overview of their meaning?

[Nick Clifton <nickc at redhat dot com>]

Hi Torsten,

> Basically, i'd like to ask for nearly all sections in the
> original V850 linker script, except the obvious ones like
> .text, .data, .bss, ... .  What is ".dynamic" doing, what
> are all the .rel* and .rela* for?
> What about .ctors and .dtors?  They sound like C++ constructors
> and destructors, but do they contain code (ROM) or data (RAM)
> used in the constructors?

Others have already answered your question, but I would just like to 
mention that just because a section appears in a linker script, that 
does not mean that it is used.  Any section in a linker script which 
does not match any sections in the input files to a particular link will 
not appear in the output of that link.

Quite often linker scripts are created by taking an already existing 
linker script and adding any extra section definitions needed by the 
particular target processor.  Since unused section descriptions make no 
difference to the linker's output they are just ignored, and so scripts 
can end up with quite a few section definitions that have no purpose but 
which can be quite baffling to anyone reading it.

Cheers
  Nick