On Sat, Jan 17, 2015 at 12:42:21AM +0100, Jan Kratochvil wrote:
> Hi,
>
> I have provided a sufficient fix in GDB for the -fplugin=libcc1plugin feature:
> [patch+7.9] compile: Filter out -fpreprocessed
> https://sourceware.org/ml/gdb-patches/2015-01/msg00485.html
>
> But still I think "-fpreprocessed" is inappropriate for DW_AT_producer.
>
> Otherwise for an inferior built using ccache the string "-fpreprocessed" is
> put into DW_AT_producer and then GDB compilation with -fplugin=libcc1plugin
> breaks as the GDB-runtime-generated source is not already preprocessed.
>
> I have rebuilt GCC but I have not run the testsuite with this patch.
Ok for trunk, thanks.
> gcc/ChangeLog
> * dwarf2out.c (gen_producer_string): Ignore also OPT_fpreprocessed.
>
> Index: ./gcc/dwarf2out.c
> ===================================================================
> --- ./gcc/dwarf2out.c (revision 219770)
> +++ ./gcc/dwarf2out.c (working copy)
> @@ -19624,6 +19624,7 @@ gen_producer_string (void)
> case OPT__sysroot_:
> case OPT_nostdinc:
> case OPT_nostdinc__:
> + case OPT_fpreprocessed:
> /* Ignore these. */
> continue;
> default:
Jakub
