Handle DW_AT_const_value/DW_FORM_strp variables

[Joel Brobecker]

Hi Pedro,

> gdb/
> 2008-04-25  Pedro Alves  <pedro@codesourcery.com>
> 
> 	* dwarf2read.c (dwarf2_const_value): Handle DW_FORM_strp.
> 
> gdb/testsuite/
> 2008-04-25  Pedro Alves  <pedro@codesourcery.com>
> 
> 	* gdb.dwarf2/dw2-strp.S, gdb.dwarf2/dw2-strp.exp: New files.

Both patches look good to me. Please go ahead and commit.

> +# This test can only be run on targets which support DWARF-2 and use gas.
> +# For now pick a sampling of likely targets.
> +if {![istarget *-*-linux*]
> +    && ![istarget *-*-gnu*]
> +    && ![istarget *-*-elf*]
> +    && ![istarget *-*-openbsd*]
> +    && ![istarget arm-*-eabi*]
> +    && ![istarget powerpc-*-eabi*]} {
> +    return 0
> +}

I wonder if we should put that in a function somewhere. We have been
repeating this pretty large condition in several files, now. Just
thinking out loud...

-- 
Joel