On Tue, Dec 06, 2016 at 03:23:06PM -0600, Bill Seurer wrote:
> 2016-12-06 Bill Seurer <seu...@linux.vnet.ibm.com>
>
> PR sanitizer/65479
> * gcc/config/rs6000/rs6000.c: Add -fasynchronous-unwind-tables option
> when
> -fsanitize=address is specified.
You should mention the function name here.
> --- gcc/config/rs6000/rs6000.c (revision 243308)
> +++ gcc/config/rs6000/rs6000.c (working copy)
> @@ -5204,6 +5204,11 @@ rs6000_option_override (void)
> {
> (void) rs6000_option_override_internal (true);
>
> + /* -fsanitize=address needs to turn on -fasynchronous-unwind-tables for
> + ppc64 in order for tracebacks to be complete. */
> + if (global_options.x_flag_sanitize & SANITIZE_USER_ADDRESS)
> + global_options.x_flag_asynchronous_unwind_tables = 1;
Do you need to check if the user specified -fno-asynchronous-unwind-tables
here, and then not do this? I.e. similar to the rs6000_isa_flags_explicit
handling (in the _internal function).
Segher
