fix FDPIC toolchain building

toolchain/gcc/patches/6.1.0/disable-dwarf.bfin

@@ -1,12 +0,0 @@
-diff -Nur gcc-6.1.0.orig/libgcc/config.host gcc-6.1.0/libgcc/config.host
---- gcc-6.1.0.orig/libgcc/config.host	2016-02-26 21:02:28.000000000 +0100
-+++ gcc-6.1.0/libgcc/config.host	2016-04-30 20:49:06.542101273 +0200
-@@ -231,7 +231,7 @@
-   esac
-   ;;
- *-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu)
--  tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver t-linux"
-+  tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver t-linux"
-   extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
-   if test x$enable_vtable_verify = xyes; then
-     extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"

toolchain/gcc/patches/6.1.0/disable-dwarf.frv

@@ -1,12 +0,0 @@
-diff -Nur gcc-git.orig/libgcc/config.host gcc-git/libgcc/config.host
---- gcc-git.orig/libgcc/config.host	2015-10-23 21:12:52.000000000 +0200
-+++ gcc-git/libgcc/config.host	2015-11-15 21:17:38.385745887 +0100
-@@ -231,7 +231,7 @@
-   esac
-   ;;
- *-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu)
--  tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-eh-dw2-dip t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver t-linux"
-+  tmake_file="$tmake_file t-crtstuff-pic t-libgcc-pic t-slibgcc t-slibgcc-gld t-slibgcc-elf-ver t-linux"
-   extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
-   if test x$enable_vtable_verify = xyes; then
-     extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"

toolchain/gcc/patches/6.1.0/fix-dwarf-fdpic.patch

@@ -0,0 +1,37 @@
+Fix DWARF compilation for FDPIC targets
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+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?

toolchain/gcc/patches/6.1.0/libgcc_linker-script.patch

@@ -0,0 +1,16 @@
+Solves following linking error:
+# bfin-openadk-linux-uclibc-g++ -o foo t.c
+bfin-openadk-linux-uclibc/bin/ld: foo: hidden symbol `___udivsi3' in libgcc.a(_udivsi3.o) is referenced by DSO
+
+diff -Nur gcc-6.1.0.orig/libgcc/config.host gcc-6.1.0/libgcc/config.host
+--- gcc-6.1.0.orig/libgcc/config.host	2016-02-26 21:02:28.000000000 +0100
++++ gcc-6.1.0/libgcc/config.host	2016-07-25 02:47:05.818797217 +0200
+@@ -444,7 +444,7 @@
+ 	md_unwind_header=bfin/linux-unwind.h
+         ;;
+ bfin*-linux-uclibc*)
+-	tmake_file="$tmake_file bfin/t-bfin bfin/t-crtstuff t-libgcc-pic t-fdpbit bfin/t-linux"
++	tmake_file="$tmake_file bfin/t-bfin bfin/t-crtstuff t-libgcc-pic t-slibgcc-libgcc t-fdpbit bfin/t-linux"
+ 	# No need to build crtbeginT.o on uClibc systems.  Should probably
+ 	# be moved to the OS specific section above.
+ 	extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"