Review request: generate DWARF pubnames under a compiler option

[Robinson, Paul]

> From: Krzysztof Parzyszek
> I'm creating testcases for the pubnames generation, and I have a couple
> of questions (about what is expected).
> 
> For this C code:
> 
> --- x.c ---
> int global_variable;
> static int static_global_variable;
> 
> static int static_global_function() {
>    return static_global_variable;
> }
> 
> int global_function() {
>    static int static_local_variable = 1;
>    static_local_variable++;
>    return global_variable +
>           static_global_function() +
>           static_local_variable;
> }
> -----------
> 
> I get 3 names in the pubnames section (no "static_global_variable" and
> no "static_local_variable").  Is this correct?
> 
> .Lpubnames_begin0:
>          .half   2
>          .word   .L.debug_info_begin0
> .set .Lset1, .L.debug_info_end0-.L.debug_info_begin0
>          .word   .Lset1
>          .word   77
>          .string  "global_variable"
>          .word   37
>          .string  "global_function"
>          .word   112
>          .string  "static_global_function"
>          .word   0
> .Lpubnames_end0:
> 
> 
> -Krzysztof

The DWARF spec says .debug_pubnames and .debug_pubtypes have
names of "global objects and functions" and "global types"
respectively.  While this is somewhat open to interpretation,
I wouldn't consider static names to be global.
--paulr