pe_ILF_make_a_symbol_reloc segfault

[Alan Modra]

pei-aarch64-little apparently lacks support for BFD_RELOC_RVA.

	* peicode.h (pe_ILF_make_a_symbol_reloc): Don't segfault on
	NULL howto.

diff --git a/bfd/peicode.h b/bfd/peicode.h
index bbf44813a75..0346bc2174e 100644
--- a/bfd/peicode.h
+++ b/bfd/peicode.h
@@ -489,7 +489,7 @@ pe_ILF_make_a_symbol_reloc (pe_ILF_vars *		vars,
 
   internal->r_vaddr  = address;
   internal->r_symndx = sym_index;
-  internal->r_type   = entry->howto->type;
+  internal->r_type   = entry->howto ? entry->howto->type : 0;
 
   vars->relcount ++;
 

-- 
Alan Modra
Australia Development Lab, IBM