[Bug target/114759] Power: multiple issues with -mrop-protect

[bergner at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114759

--- Comment #5 from Peter Bergner <bergner at gcc dot gnu.org> ---
(In reply to Peter Bergner from comment #4)
> If instead we want to just silently ignore (or with a warning), we'd just
> need to modify the rs6000.cc hunk to disable rs6000_rop_protect instead of
> calling error().

Like so:

-  /* If we are inserting ROP-protect instructions, disable shrink wrap.  */
+
   if (rs6000_rop_protect)
-    flag_shrink_wrap = 0;
+    {
+      if (!TARGET_POWER8 || DEFAULT_ABI != ABI_ELFv2)
+       rs6000_rop_protect = 0;
+      else
+       /* If we are inserting ROP-protect instructions, disable shrink wrap. 
*/
+       flag_shrink_wrap = 0;
+    }