[Bug libgcc/68468] frv/bfin FDPIC toolchain build error

[wbx at openadk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68468

--- Comment #9 from Waldemar Brodkorb <wbx at openadk dot org> ---
After opening my eyes, it seems something like this works for me:

diff -Nur gcc-6.1.0.orig/libgcc/unwind-dw2-fde-dip.c
gcc-6.1.0/libgcc/unwind-dw2-fde-dip.c
--- gcc-6.1.0.orig/libgcc/unwind-dw2-fde-dip.c  2016-01-04 15:30:50.000000000
+0100
+++ gcc-6.1.0/libgcc/unwind-dw2-fde-dip.c       2016-08-05 02:17:40.424195128
+0200
@@ -124,7 +124,11 @@
 {
   _Unwind_Ptr pc_low;
   _Unwind_Ptr pc_high;
+#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__
+  struct elf32_fdpic_loadaddr load_base;
+#else
   _Unwind_Ptr load_base;
+#endif
   const ElfW(Phdr) *p_eh_frame_hdr;
   const ElfW(Phdr) *p_dynamic;
   struct frame_hdr_cache_element *link;
@@ -163,7 +167,7 @@
   struct unw_eh_callback_data *data = (struct unw_eh_callback_data *) ptr;
   const ElfW(Phdr) *phdr, *p_eh_frame_hdr, *p_dynamic;
   long n, match;
-#ifdef __FRV_FDPIC__
+#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__
   struct elf32_fdpic_loadaddr load_base;
 #else
   _Unwind_Ptr load_base;
@@ -347,7 +351,7 @@
            break;
          }
     }
-# elif defined __FRV_FDPIC__ && defined __linux__
+# elif (defined __FRV_FDPIC__ || defined __BFIN_FDPIC__) && defined __linux__
   data->dbase = load_base.got_value;
 # else
 #  error What is DW_EH_PE_datarel base on this platform?