AIX DWARF debugging sections

[Joel Brobecker]

> For full sentences, we might as well document it more completely.

Good idea. The patch looks good to me.

> diff --git a/gdb/xcoffread.c b/gdb/xcoffread.c
> index 0d49751..e4af37c 100644
> --- a/gdb/xcoffread.c
> +++ b/gdb/xcoffread.c
> @@ -159,11 +159,14 @@ static const struct dwarf2_debug_sections dwarf2_xcoff_nam
> es = {
>    { ".dwabrev", NULL },
>    { ".dwline", NULL },
>    { ".dwloc", NULL },
> -  { NULL, NULL }, /* debug_macinfo */
> -  { NULL, NULL }, /* debug_macro */
> +  /* AIX XCOFF defines one, named DWARF section for macro debug information.
> +     XLC does not generate debug_macinfo for DWARF4 and below.
> +     The section is assigned to debug_macro for DWARF5 and above. */
> +  { NULL, NULL },
> +  { ".dwmac", NULL },
>    { ".dwstr", NULL },
>    { ".dwrnges", NULL },
> -  { NULL, NULL }, /* debug_types */
> +  { ".dwpbtyp", NULL },
>    { NULL, NULL }, /* debug_addr */
>    { ".dwframe", NULL },
>    { NULL, NULL }, /* eh_frame */

-- 
Joel