Build: Bump all toolchains to GCC 4.9.4 + Binutils 2.26.1

GCC 4.9.4 was already used for MIPS and all hosted targets; this enables
it across the board for everything (ie m68k and arm native)

Other changes:

 * Use '-Os' as the default optiomization for all targets
   (was only disabled for arm native)
 * Enable -funit-at-a-time and -Wextra
 * Drop all obsolete toolchain patches
 * Update ARM multilib/exception patch
 * Bump toolchain libs (gmp, mpfr, mpc) to recommended versions, and
   add 'isl' to enable better optimization & vectorization opportunities.

   (Will revisit optimization for the codecs and plugins at a later date)

Confirmed working:

 * armv4t     (ipodmini2g and many other PP502x targets)
 * arm >= v5  (sansaclipplus, ipod6g, ipodnano2g, sansafuzeplus)
 * m68k (ihp100)

Change-Id: If9ed405ae0f289d9adea46d4cf46bfefc2f4250d

8 files changed, 92 insertions, 722 deletions

diff --git a/lib/rbcodec/codecs/codecs.make b/lib/rbcodec/codecs/codecs.make
index d9554a9802..187987ca3c 100644
--- a/lib/rbcodec/codecs/codecs.make
+++ b/lib/rbcodec/codecs/codecs.make
@@ -124,6 +124,7 @@ else ifeq ($(ARCH),arch_m68k)
   $(ATRACLIB) : CODECFLAGS += -O2
   $(COOKLIB): CODECFLAGS += -O2
   $(DEMACLIB) : CODECFLAGS += -O2
+  $(FFMPEGFLACLIB) : CODECFLAGS += -Os
   $(SPCLIB) : CODECFLAGS +=  -O3
   $(WMAPROLIB) : CODECFLAGS += -O3
   $(WMAVOICELIB) : CODECFLAGS += -O2
diff --git a/tools/configure b/tools/configure
index 2b34ed4cff..11c8513c92 100755
--- a/tools/configure
+++ b/tools/configure
@@ -8,7 +8,7 @@
 #
 
 # global CC options for all platforms
-CCOPTS="-W -Wall -Wundef -O -nostdlib -ffreestanding -Wstrict-prototypes -pipe -std=gnu99"
+CCOPTS="-W -Wall -Wextra -Wundef -Os -nostdlib -ffreestanding -Wstrict-prototypes -pipe -std=gnu99 -funit-at-a-time"
 
 # LD options for the core
 LDOPTS=""
@@ -136,7 +136,7 @@ app_set_lcd_size () {
 
 findarmgcc() {
   prefixtools arm-elf-eabi-
-  gccchoice="4.4.4"
+  gccchoice="4.9.4"
 }
 
 # scan the $PATH for the given command
@@ -502,6 +502,7 @@ calmrisccc () {
  GCCOPTS="-Wl\,--no-check-sections $CCOPTS"
  GCCOPTIMIZE="-fomit-frame-pointer"
  endian="big"
+ gccchoice="4.9.4"
 }
 
 coldfirecc () {
@@ -509,7 +510,7 @@ coldfirecc () {
  GCCOPTS="$CCOPTS -mcpu=5249 -malign-int -mstrict-align"
  GCCOPTIMIZE="-fomit-frame-pointer"
  endian="big"
- gccchoice="4.5.2"
+ gccchoice="4.9.4"
 }
 
 arm7tdmicc () {
@@ -2588,7 +2589,6 @@ fi
     sysfont="08-Rockfont"
     if [ "$ARG_ARM_THUMB" != 0 ]; then ARG_ARM_THUMB=1; fi
     arm9tdmicc
-    GCCOPTS=`echo $GCCOPTS | sed 's/ -O / -Os /'`
     ;;
 
 
@@ -2631,7 +2631,6 @@ fi
     sysfont="08-Rockfont"
     if [ "$ARG_ARM_THUMB" != 0 ]; then ARG_ARM_THUMB=1; fi
     arm9tdmicc
-    GCCOPTS=`echo $GCCOPTS | sed 's/ -O / -Os /'`
     ;;
 
 
@@ -2676,7 +2675,6 @@ fi
     t_model="sansa-c200v2"
     if [ "$ARG_ARM_THUMB" != 0 ]; then ARG_ARM_THUMB=1; fi
     arm9tdmicc
-    GCCOPTS=`echo $GCCOPTS | sed 's/ -O / -Os /'`
     ;;
 
    60|sansaclipv2)
@@ -4519,16 +4517,6 @@ echo "Using $LD $ldver"
 makever=`make --version | head -1`
 echo "Detected make $makever"
 
-if test "$CC" = "m68k-elf-gcc"; then
-  # convert -O to -Os to get smaller binaries!
-  GCCOPTS=`echo $GCCOPTS | sed 's/ -O / -Os /'`
-fi
-if test "$CC" = "mipsel-elf-gcc"; then
-  # convert -O to -Os to get smaller binaries!
-  GCCOPTS=`echo $GCCOPTS | sed 's/ -O / -Os /'`
-fi
-
-
 if [ "$ARG_CCACHE" = "1" ]; then
   echo "Enable ccache for building"
   ccache="ccache"
diff --git a/tools/rockboxdev.sh b/tools/rockboxdev.sh
index 6009a0c3af..61cefe55e7 100755
--- a/tools/rockboxdev.sh
+++ b/tools/rockboxdev.sh
@@ -391,9 +391,9 @@ build() {
         fi
     done
 
-    # kludge to avoid having to install GMP, MPFR and MPC, for new gcc
+    # kludge to avoid having to install GMP, MPFR, MPC and ISL
     if test -n "$needs_libs"; then
-        cd "gcc-$version"
+        cd "$toolname-$version"
         if (echo $needs_libs | grep -q gmp && test ! -d gmp); then
             echo "ROCKBOXDEV: Getting GMP"
             getfile "gmp-4.3.2.tar.bz2" "$GNU_MIRROR/gmp"
@@ -403,16 +403,23 @@ build() {
 
         if (echo $needs_libs | grep -q mpfr && test ! -d mpfr); then
             echo "ROCKBOXDEV: Getting MPFR"
-            getfile "mpfr-2.4.2.tar.bz2" "$GNU_MIRROR/mpfr"
-            tar xjf $dlwhere/mpfr-2.4.2.tar.bz2
-            ln -s mpfr-2.4.2 mpfr
+            getfile "mpfr-3.1.0.tar.bz2" "$GNU_MIRROR/mpfr"
+            tar xjf $dlwhere/mpfr-3.1.0.tar.bz2
+            ln -s mpfr-3.1.0 mpfr
         fi
 
         if (echo $needs_libs | grep -q mpc && test ! -d mpc); then
             echo "ROCKBOXDEV: Getting MPC"
-            getfile "mpc-0.8.1.tar.gz" "http://www.multiprecision.org/downloads"
-            tar xzf $dlwhere/mpc-0.8.1.tar.gz
-            ln -s mpc-0.8.1 mpc
+            getfile "mpc-1.0.1.tar.gz" "http://www.multiprecision.org/downloads"
+            tar xzf $dlwhere/mpc-1.0.1.tar.gz
+            ln -s mpc-1.0.1 mpc
+        fi
+
+        if (echo $needs_libs | grep -q isl && test ! -d isl); then
+            echo "ROCKBOXDEV: Getting ISL"
+            getfile "isl-0.15.tar.bz2" "https://gcc.gnu.org/pub/gcc/infrastructure"
+            tar xjf $dlwhere/isl-0.15.tar.bz2
+            ln -s isl-0.15 isl
         fi
         cd $builddir
     fi
@@ -708,11 +715,10 @@ if [ -z "$RBDEV_TARGET" ]; then
     echo "m   - m68k     (iriver h1x0/h3x0, iaudio m3/m5/x5 and mpio hd200)"
     echo "a   - arm      (ipods, iriver H10, Sansa, D2, Gigabeat, etc)"
     echo "i   - mips     (Jz47xx and ATJ-based players)"
-#    echo "r   - arm-app  (Samsung ypr0)"
     echo "x   - arm-linux  (Generic Linux ARM: Samsung ypr0, Linux-based Sony NWZ)"
     echo "y   - mips-linux  (Generic Linux MIPS: AGPTek Rocker)"
     echo "separate multiple targets with spaces"
-    echo "(Example: \"s m a\" will build sh, m68k and arm)"
+    echo "(Example: \"m a i\" will build m68k, arm, and mips)"
     echo ""
     selarch=`input`
 else
@@ -729,13 +735,13 @@ do
     echo ""
     case $arch in
         [Ii])
-            build "binutils" "mipsel-elf" "2.26.1" "" "--disable-werror"
-            build "gcc" "mipsel-elf" "4.9.4" "" "" "gmp mpfr mpc"
+            build "binutils" "mipsel-elf" "2.26.1" "" "--disable-werror" "isl"
+            build "gcc" "mipsel-elf" "4.9.4" "" "" "gmp mpfr mpc isl"
             ;;
 
         [Mm])
-            build "binutils" "m68k-elf" "2.20.1" "binutils-2.20.1-texinfo-fix.diff" "--disable-werror"
-            build "gcc" "m68k-elf" "4.5.2" "" "--with-arch=cf MAKEINFO=missing" "gmp mpfr mpc"
+            build "binutils" "m68k-elf" "2.26.1" "" "--disable-werror" "isl"
+            build "gcc" "m68k-elf" "4.9.4" "" "--with-arch=cf MAKEINFO=missing" "gmp mpfr mpc isl"
             ;;
 
         [Aa])
@@ -747,12 +753,9 @@ do
                     gccopts="--disable-nls"
                     ;;
             esac
-            build "binutils" "arm-elf-eabi" "2.20.1" "binutils-2.20.1-ld-thumb-interwork-long-call.diff binutils-2.20.1-texinfo-fix.diff" "$binopts --disable-werror"
-            build "gcc" "arm-elf-eabi" "4.4.4" "rockbox-multilibs-noexceptions-arm-elf-eabi-gcc-4.4.2_1.diff" "$gccopts MAKEINFO=missing" "gmp mpfr"
+            build "binutils" "arm-elf-eabi" "2.26.1" "" "$binopts --disable-werror" "isl"
+            build "gcc" "arm-elf-eabi" "4.9.4" "rockbox-multilibs-noexceptions-arm-elf-eabi-gcc-4.9.4.diff" "$gccopts MAKEINFO=missing" "gmp mpfr mpc isl"
             ;;
-#        [Rr])
-#            build_ctng "ypr0" "alsalib.tar.gz" "arm" "linux-gnueabi"
-#            ;;
         [Xx])
             # IMPORTANT NOTE
             # This toolchain must support several targets and thus must support
@@ -804,20 +807,26 @@ do
             #        compiles with GCC >6
             #   kernel: 3.10.14
             #   glibc: 2.16
+            #   alsa: 1.0.29
+            #
+            # FiiO M3K:
+            #   kernel: 3.10.14
+            #   glibc: 2.16
+            #   alsa: 1.0.26
             #
             # To maximize compatibility, we use kernel 3.2.85 which is the lastest
             # longterm 3.2 kernel and is supported by the latest glibc, and we
-            # require support for up to glibc 2.4
+            # require support for up to glibc 2.16
             # We use a recent 2.26.1 binutils to avoid any build problems and
             # avoid patches/bugs.
-            glibcopts="--enable-kernel=3.2 --enable-oldest-abi=2.4"
+            glibcopts="--enable-kernel=3.2 --enable-oldest-abi=2.16"
             # FIXME: maybe add -mhard-float
             build_linux_toolchain "mipsel-rockbox-linux-gnu" "2.26.1" "" "4.9.4" \
                 "$gccopts" "3.2.85" "2.25" "$glibcopts"
             # build alsa-lib
             # we need to set the prefix to how it is on device (/usr) and then
             # tweak install dir at make install step
-            alsalib_ver="1.0.19"
+            alsalib_ver="1.0.26"
             gettool "alsa-lib" "$alsalib_ver"
             extract "alsa-lib-$alsalib_ver"
             prefix="/usr" buildtool "alsa-lib" "$alsalib_ver" \
diff --git a/tools/toolchain-patches/binutils-2.16.1-texinfo-fix.diff b/tools/toolchain-patches/binutils-2.16.1-texinfo-fix.diff
deleted file mode 100644
index ae0a79399b..0000000000
--- a/tools/toolchain-patches/binutils-2.16.1-texinfo-fix.diff
+++ /dev/null
@@ -1,30 +0,0 @@
-diff -ru binutils-2.16.1-orig/ld/ld.texinfo binutils-2.16.1/ld/ld.texinfo
---- binutils-2.16.1-orig/ld/ld.texinfo	2005-06-12 20:35:45.000000000 +0200
-+++ binutils-2.16.1/ld/ld.texinfo	2013-06-04 22:31:37.833372351 +0200
-@@ -1589,7 +1589,7 @@
- 
- @kindex --version-script=@var{version-scriptfile}
- @cindex version script, symbol versions
--@itemx --version-script=@var{version-scriptfile}
-+@item --version-script=@var{version-scriptfile}
- Specify the name of a version script to the linker.  This is typically
- used when creating shared libraries to specify additional information
- about the version hierarchy for the library being created.  This option
-@@ -6256,7 +6256,7 @@
- @printindex cp
- 
- @tex
--% I think something like @colophon should be in texinfo.  In the
-+% I think something like @@colophon should be in texinfo.  In the
- % meantime:
- \long\def\colophon{\hbox to0pt{}\vfill
- \centerline{The body of this manual is set in}
-@@ -6267,7 +6267,7 @@
- \centerline{{\sl\fontname\tensl\/}}
- \centerline{are used for emphasis.}\vfill}
- \page\colophon
--% Blame: doc@cygnus.com, 28mar91.
-+% Blame: doc@@cygnus.com, 28mar91.
- @end tex
- 
- 
diff --git a/tools/toolchain-patches/binutils-2.20.1-ld-thumb-interwork-long-call.diff b/tools/toolchain-patches/binutils-2.20.1-ld-thumb-interwork-long-call.diff
deleted file mode 100644
index 5eb5debfbf..0000000000
--- a/tools/toolchain-patches/binutils-2.20.1-ld-thumb-interwork-long-call.diff
+++ /dev/null
@@ -1,569 +0,0 @@
-http://sourceware.org/ml/binutils/2010-02/msg00460.html
-
-Drop this patch when binutils 2.21 is out
-diff -ur binutils-2.20.1.orig/bfd/elf32-arm.c binutils-2.20.1/bfd/elf32-arm.c
---- binutils-2.20.1.orig/bfd/elf32-arm.c	2010-06-11 18:48:06.000000000 +0200
-+++ binutils-2.20.1/bfd/elf32-arm.c	2010-06-11 18:51:00.000000000 +0200
-@@ -2401,6 +2401,7 @@
-   unsigned long orig_insn;
-   char *stub_name;
-   enum elf32_arm_stub_type stub_type;
-+  int st_type;
- };
- 
- /* A table of relocs applied to branches which might trigger Cortex-A8
-@@ -2647,6 +2648,9 @@
-     asection *stub_sec;
-   } *stub_group;
- 
-+  /* Number of elements in stub_group.  */
-+  int top_id;
-+
-   /* Assorted information used by elf32_arm_size_stubs.  */
-   unsigned int bfd_count;
-   int top_index;
-@@ -2933,6 +2937,7 @@
-   ret->add_stub_section = NULL;
-   ret->layout_sections_again = NULL;
-   ret->stub_group = NULL;
-+  ret->top_id = 0;
-   ret->bfd_count = 0;
-   ret->top_index = 0;
-   ret->input_list = NULL;
-@@ -3033,7 +3038,7 @@
- arm_type_of_stub (struct bfd_link_info *info,
- 		  asection *input_sec,
- 		  const Elf_Internal_Rela *rel,
--		  unsigned char st_type,
-+		  int *actual_st_type,
- 		  struct elf32_arm_link_hash_entry *hash,
- 		  bfd_vma destination,
- 		  asection *sym_sec,
-@@ -3048,6 +3053,7 @@
-   int thumb_only;
-   enum elf32_arm_stub_type stub_type = arm_stub_none;
-   int use_plt = 0;
-+  int st_type = *actual_st_type;
- 
-   /* We don't know the actual type of destination in case it is of
-      type STT_SECTION: give up.  */
-@@ -3065,14 +3071,15 @@
- 	      + input_sec->output_section->vma
- 	      + rel->r_offset);
- 
--  branch_offset = (bfd_signed_vma)(destination - location);
--
-   r_type = ELF32_R_TYPE (rel->r_info);
- 
-   /* Keep a simpler condition, for the sake of clarity.  */
--  if (globals->splt != NULL && hash != NULL && hash->root.plt.offset != (bfd_vma) -1)
-+  if (globals->splt != NULL
-+      && hash != NULL
-+      && hash->root.plt.offset != (bfd_vma) -1)
-     {
-       use_plt = 1;
-+
-       /* Note when dealing with PLT entries: the main PLT stub is in
- 	 ARM mode, so if the branch is in Thumb mode, another
- 	 Thumb->ARM stub will be inserted later just before the ARM
-@@ -3081,8 +3088,15 @@
- 	 Thumb->Arm one and branch directly to the ARM PLT entry
- 	 because it avoids spreading offset corrections in several
- 	 places.  */
-+
-+      destination = (globals->splt->output_section->vma
-+		     + globals->splt->output_offset
-+		     + hash->root.plt.offset);
-+      st_type = STT_FUNC;
-     }
- 
-+  branch_offset = (bfd_signed_vma)(destination - location);
-+
-   if (r_type == R_ARM_THM_CALL || r_type == R_ARM_THM_JUMP24)
-     {
-       /* Handle cases where:
-@@ -3176,7 +3190,9 @@
- 	    }
- 	}
-     }
--  else if (r_type == R_ARM_CALL || r_type == R_ARM_JUMP24 || r_type == R_ARM_PLT32)
-+  else if (r_type == R_ARM_CALL
-+	   || r_type == R_ARM_JUMP24
-+	   || r_type == R_ARM_PLT32)
-     {
-       if (st_type == STT_ARM_TFUNC)
- 	{
-@@ -3231,6 +3247,12 @@
- 	}
-     }
- 
-+  /* If a stub is needed, record the actual destination type.  */
-+  if (stub_type != arm_stub_none)
-+    {
-+      *actual_st_type = st_type;
-+    }
-+
-   return stub_type;
- }
- 
-@@ -3240,31 +3262,35 @@
- elf32_arm_stub_name (const asection *input_section,
- 		     const asection *sym_sec,
- 		     const struct elf32_arm_link_hash_entry *hash,
--		     const Elf_Internal_Rela *rel)
-+		     const Elf_Internal_Rela *rel,
-+             enum elf32_arm_stub_type stub_type)
-+
- {
-   char *stub_name;
-   bfd_size_type len;
- 
-   if (hash)
-     {
--      len = 8 + 1 + strlen (hash->root.root.root.string) + 1 + 8 + 1;
-+      len = 8 + 1 + strlen (hash->root.root.root.string) + 1 + 8 + 1 + 2 + 1;
-       stub_name = bfd_malloc (len);
-       if (stub_name != NULL)
--	sprintf (stub_name, "%08x_%s+%x",
-+	sprintf (stub_name, "%08x_%s+%x_%d",
- 		 input_section->id & 0xffffffff,
- 		 hash->root.root.root.string,
--		 (int) rel->r_addend & 0xffffffff);
-+		 (int) rel->r_addend & 0xffffffff,
-+         (int) stub_type);
-     }
-   else
-     {
--      len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
-+      len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1 + 2 + 1;
-       stub_name = bfd_malloc (len);
-       if (stub_name != NULL)
--	sprintf (stub_name, "%08x_%x:%x+%x",
-+	sprintf (stub_name, "%08x_%x:%x+%x_%d",
- 		 input_section->id & 0xffffffff,
- 		 sym_sec->id & 0xffffffff,
- 		 (int) ELF32_R_SYM (rel->r_info) & 0xffffffff,
--		 (int) rel->r_addend & 0xffffffff);
-+		 (int) rel->r_addend & 0xffffffff,
-+         (int) stub_type);
-     }
- 
-   return stub_name;
-@@ -3278,7 +3304,8 @@
- 			  const asection *sym_sec,
- 			  struct elf_link_hash_entry *hash,
- 			  const Elf_Internal_Rela *rel,
--			  struct elf32_arm_link_hash_table *htab)
-+			  struct elf32_arm_link_hash_table *htab,
-+			  enum elf32_arm_stub_type stub_type)
- {
-   struct elf32_arm_stub_hash_entry *stub_entry;
-   struct elf32_arm_link_hash_entry *h = (struct elf32_arm_link_hash_entry *) hash;
-@@ -3296,7 +3323,8 @@
- 
-   if (h != NULL && h->stub_cache != NULL
-       && h->stub_cache->h == h
--      && h->stub_cache->id_sec == id_sec)
-+      && h->stub_cache->id_sec == id_sec
-+      && h->stub_cache->stub_type == stub_type)
-     {
-       stub_entry = h->stub_cache;
-     }
-@@ -3304,7 +3332,7 @@
-     {
-       char *stub_name;
- 
--      stub_name = elf32_arm_stub_name (id_sec, sym_sec, h, rel);
-+      stub_name = elf32_arm_stub_name (id_sec, sym_sec, h, rel, stub_type);
-       if (stub_name == NULL)
- 	return NULL;
- 
-@@ -3464,7 +3492,7 @@
-     /* We have to do the a8 fixes last, as they are less aligned than
-        the other veneers.  */
-     return TRUE;
--  
-+
-   /* Make a note of the offset within the stubs for this entry.  */
-   stub_entry->stub_offset = stub_sec->size;
-   loc = stub_sec->contents + stub_entry->stub_offset;
-@@ -3499,17 +3527,17 @@
-                 BFD_ASSERT ((data & 0xff00) == 0xd000);
-                 data |= ((stub_entry->orig_insn >> 22) & 0xf) << 8;
- 	      }
--	    put_thumb_insn (globals, stub_bfd, data, loc + size);
-+	    bfd_put_16 (stub_bfd, data, loc + size);
- 	    size += 2;
- 	  }
- 	  break;
- 
- 	case THUMB32_TYPE:
--          put_thumb_insn (globals, stub_bfd,
--                          (template_sequence[i].data >> 16) & 0xffff,
--                          loc + size);
--          put_thumb_insn (globals, stub_bfd, template_sequence[i].data & 0xffff,
--                          loc + size + 2);
-+	  bfd_put_16 (stub_bfd,
-+		      (template_sequence[i].data >> 16) & 0xffff,
-+		      loc + size);
-+	  bfd_put_16 (stub_bfd, template_sequence[i].data & 0xffff,
-+		      loc + size + 2);
-           if (template_sequence[i].r_type != R_ARM_NONE)
-             {
-               stub_reloc_idx[nrelocs] = i;
-@@ -3519,8 +3547,8 @@
-           break;
- 
- 	case ARM_TYPE:
--	  put_arm_insn (globals, stub_bfd, template_sequence[i].data,
--                        loc + size);
-+	  bfd_put_32 (stub_bfd, template_sequence[i].data,
-+		      loc + size);
- 	  /* Handle cases where the target is encoded within the
- 	     instruction.  */
- 	  if (template_sequence[i].r_type == R_ARM_JUMP24)
-@@ -3599,11 +3627,23 @@
-       }
-     else
-       {
--	_bfd_final_link_relocate (elf32_arm_howto_from_type
--	    (template_sequence[stub_reloc_idx[i]].r_type), stub_bfd, stub_sec,
--	  stub_sec->contents, stub_entry->stub_offset + stub_reloc_offset[i],
--	  sym_value + stub_entry->target_addend,
--	  template_sequence[stub_reloc_idx[i]].reloc_addend);
-+	Elf_Internal_Rela rel;
-+	bfd_boolean unresolved_reloc;
-+	char *error_message;
-+	bfd_vma points_to = sym_value + stub_entry->target_addend
-+	  + template_sequence[stub_reloc_idx[i]].reloc_addend;
-+
-+	rel.r_offset = stub_entry->stub_offset + stub_reloc_offset[i];
-+	rel.r_info = ELF32_R_INFO (0,
-+                                   template_sequence[stub_reloc_idx[i]].r_type);
-+	rel.r_addend = 0;
-+
-+	elf32_arm_final_link_relocate (elf32_arm_howto_from_type
-+	    (template_sequence[stub_reloc_idx[i]].r_type),
-+	  stub_bfd, info->output_bfd, stub_sec, stub_sec->contents, &rel,
-+	  points_to, info, stub_entry->target_section, "", stub_entry->st_type,
-+	  (struct elf_link_hash_entry *) stub_entry->h, &unresolved_reloc,
-+	  &error_message);
-       }
- 
-   return TRUE;
-@@ -3728,6 +3768,7 @@
-   htab->stub_group = bfd_zmalloc (amt);
-   if (htab->stub_group == NULL)
-     return -1;
-+  htab->top_id = top_id;
- 
-   /* We can't use output_bfd->section_count here to find the top output
-      section index as some sections may have been removed, and
-@@ -4009,7 +4050,7 @@
- 		}
- 
- 	      is_32bit_branch = is_b || is_bl || is_blx || is_bcc;
--			   
-+
-               if (((base_vma + i) & 0xfff) == 0xffe
- 		  && insn_32bit
- 		  && is_32bit_branch
-@@ -4178,6 +4219,8 @@
-                           a8_fixes[num_a8_fixes].orig_insn = insn;
-                           a8_fixes[num_a8_fixes].stub_name = stub_name;
-                           a8_fixes[num_a8_fixes].stub_type = stub_type;
-+                          a8_fixes[num_a8_fixes].st_type =
-+			    is_blx ? STT_FUNC : STT_ARM_TFUNC;
- 
-                           num_a8_fixes++;
-                         }
-@@ -4193,11 +4236,11 @@
-       if (elf_section_data (section)->this_hdr.contents == NULL)
-         free (contents);
-     }
--  
-+
-   *a8_fixes_p = a8_fixes;
-   *num_a8_fixes_p = num_a8_fixes;
-   *a8_fix_table_size_p = a8_fix_table_size;
--  
-+
-   return FALSE;
- }
- 
-@@ -4345,7 +4388,7 @@
- 		  const char *sym_name;
- 		  char *stub_name;
- 		  const asection *id_sec;
--		  unsigned char st_type;
-+		  int st_type;
- 		  bfd_boolean created_stub = FALSE;
- 
- 		  r_type = ELF32_R_TYPE (irela->r_info);
-@@ -4403,7 +4446,7 @@
- 			/* This is an undefined symbol.  It can never
- 			   be resolved. */
- 			continue;
--		  
-+
- 		      if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
- 			sym_value = sym->st_value;
- 		      destination = (sym_value + irela->r_addend
-@@ -4493,7 +4536,7 @@
- 		    {
- 		      /* Determine what (if any) linker stub is needed.  */
- 		      stub_type = arm_type_of_stub (info, section, irela,
--						    st_type, hash,
-+						    &st_type, hash,
- 						    destination, sym_sec,
- 						    input_bfd, sym_name);
- 		      if (stub_type == arm_stub_none)
-@@ -4504,7 +4547,7 @@
- 
- 		      /* Get the name of this stub.  */
- 		      stub_name = elf32_arm_stub_name (id_sec, sym_sec, hash,
--						       irela);
-+						       irela, stub_type);
- 		      if (!stub_name)
- 			goto error_ret_free_internal;
- 
-@@ -4703,7 +4746,7 @@
-           stub_entry->target_value = a8_fixes[i].offset;
-           stub_entry->target_addend = a8_fixes[i].addend;
-           stub_entry->orig_insn = a8_fixes[i].orig_insn;
--          stub_entry->st_type = STT_ARM_TFUNC;
-+	  stub_entry->st_type = a8_fixes[i].st_type;
- 
-           size = find_stub_size_and_template (a8_fixes[i].stub_type,
-                                               &template_sequence,
-@@ -6866,6 +6909,7 @@
- 			  ".tls_vars") == 0)
- 	  && ((r_type != R_ARM_REL32 && r_type != R_ARM_REL32_NOI)
- 	      || !SYMBOL_CALLS_LOCAL (info, h))
-+	  && (!strstr (input_section->name, STUB_SUFFIX))
- 	  && (h == NULL
- 	      || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- 	      || h->root.type != bfd_link_hash_undefweak)
-@@ -6990,7 +7034,6 @@
- 	case R_ARM_PC24:	  /* Arm B/BL instruction.  */
- 	case R_ARM_PLT32:
- 	  {
--	  bfd_signed_vma branch_offset;
- 	  struct elf32_arm_stub_hash_entry *stub_entry = NULL;
- 
- 	  if (r_type == R_ARM_XPC25)
-@@ -7026,45 +7069,46 @@
- 	      || r_type == R_ARM_JUMP24
- 	      || r_type == R_ARM_PLT32)
- 	    {
--	      bfd_vma from;
--	      
--	      /* If the call goes through a PLT entry, make sure to
--		 check distance to the right destination address.  */
--	      if (h != NULL && splt != NULL && h->plt.offset != (bfd_vma) -1)
--		{
--		  value = (splt->output_section->vma
--			   + splt->output_offset
--			   + h->plt.offset);
--		  *unresolved_reloc_p = FALSE;
--		  /* The PLT entry is in ARM mode, regardless of the
--		     target function.  */
--		  sym_flags = STT_FUNC;
--		}
-+	      enum elf32_arm_stub_type stub_type = arm_stub_none;
-+	      struct elf32_arm_link_hash_entry *hash;
- 
--	      from = (input_section->output_section->vma
--		      + input_section->output_offset
--		      + rel->r_offset);
--	      branch_offset = (bfd_signed_vma)(value - from);
--
--	      if (branch_offset > ARM_MAX_FWD_BRANCH_OFFSET
--		  || branch_offset < ARM_MAX_BWD_BRANCH_OFFSET
--		  || ((sym_flags == STT_ARM_TFUNC)
--		      && (((r_type == R_ARM_CALL) && !globals->use_blx)
--			  || (r_type == R_ARM_JUMP24)
--			  || (r_type == R_ARM_PLT32) ))
--		  )
-+	      hash = (struct elf32_arm_link_hash_entry *) h;
-+	      stub_type = arm_type_of_stub (info, input_section, rel,
-+					    &sym_flags, hash,
-+					    value, sym_sec,
-+					    input_bfd, sym_name);
-+
-+	      if (stub_type != arm_stub_none)
- 		{
- 		  /* The target is out of reach, so redirect the
- 		     branch to the local stub for this function.  */
- 
- 		  stub_entry = elf32_arm_get_stub_entry (input_section,
- 							 sym_sec, h,
--							 rel, globals);
-+							 rel, globals,
-+							 stub_type);
- 		  if (stub_entry != NULL)
- 		    value = (stub_entry->stub_offset
- 			     + stub_entry->stub_sec->output_offset
- 			     + stub_entry->stub_sec->output_section->vma);
- 		}
-+	      else
-+		{
-+		  /* If the call goes through a PLT entry, make sure to
-+		     check distance to the right destination address.  */
-+		  if (h != NULL
-+		      && splt != NULL
-+		      && h->plt.offset != (bfd_vma) -1)
-+		    {
-+		      value = (splt->output_section->vma
-+			       + splt->output_offset
-+			       + h->plt.offset);
-+		      *unresolved_reloc_p = FALSE;
-+		      /* The PLT entry is in ARM mode, regardless of the
-+			 target function.  */
-+		      sym_flags = STT_FUNC;
-+		    }
-+		}
- 	    }
- 
- 	  /* The ARM ELF ABI says that this reloc is computed as: S - P + A
-@@ -7444,58 +7488,29 @@
- 	      }
- 	  }
- 
--	/* Handle calls via the PLT.  */
--	if (h != NULL && splt != NULL && h->plt.offset != (bfd_vma) -1)
--	  {
--	    value = (splt->output_section->vma
--		     + splt->output_offset
--		     + h->plt.offset);
-- 	    if (globals->use_blx && r_type == R_ARM_THM_CALL)
-- 	      {
-- 		/* If the Thumb BLX instruction is available, convert the
--		   BL to a BLX instruction to call the ARM-mode PLT entry.  */
--		lower_insn = (lower_insn & ~0x1000) | 0x0800;
--		sym_flags = STT_FUNC;
-- 	      }
-- 	    else
--	      {
--		/* Target the Thumb stub before the ARM PLT entry.  */
--		value -= PLT_THUMB_STUB_SIZE;
--		sym_flags = STT_ARM_TFUNC;
--	      }
--	    *unresolved_reloc_p = FALSE;
--	  }
--
-+	enum elf32_arm_stub_type stub_type = arm_stub_none;
- 	if (r_type == R_ARM_THM_CALL || r_type == R_ARM_THM_JUMP24)
- 	  {
- 	    /* Check if a stub has to be inserted because the destination
- 	       is too far.  */
--	    bfd_vma from;
--	    bfd_signed_vma branch_offset;
--	    struct elf32_arm_stub_hash_entry *stub_entry = NULL;
--
--	    from = (input_section->output_section->vma
--		    + input_section->output_offset
--		    + rel->r_offset);
--	    branch_offset = (bfd_signed_vma)(value - from);
--
--	    if ((!thumb2
--		 && (branch_offset > THM_MAX_FWD_BRANCH_OFFSET
--		     || (branch_offset < THM_MAX_BWD_BRANCH_OFFSET)))
--		||
--		(thumb2
--		 && (branch_offset > THM2_MAX_FWD_BRANCH_OFFSET
--		     || (branch_offset < THM2_MAX_BWD_BRANCH_OFFSET)))
--		|| ((sym_flags != STT_ARM_TFUNC)
--		    && (((r_type == R_ARM_THM_CALL) && !globals->use_blx)
--			|| r_type == R_ARM_THM_JUMP24)))
-+	    struct elf32_arm_stub_hash_entry *stub_entry;
-+	    struct elf32_arm_link_hash_entry *hash;
-+
-+	    hash = (struct elf32_arm_link_hash_entry *) h;
-+
-+	    stub_type = arm_type_of_stub (info, input_section, rel,
-+					  &sym_flags, hash, value, sym_sec,
-+					  input_bfd, sym_name);
-+
-+	    if (stub_type != arm_stub_none)
- 	      {
- 		/* The target is out of reach or we are changing modes, so
- 		   redirect the branch to the local stub for this
- 		   function.  */
- 		stub_entry = elf32_arm_get_stub_entry (input_section,
- 						       sym_sec, h,
--						       rel, globals);
-+						       rel, globals,
-+						       stub_type);
- 		if (stub_entry != NULL)
- 		  value = (stub_entry->stub_offset
- 			   + stub_entry->stub_sec->output_offset
-@@ -7512,6 +7527,33 @@
- 	      }
- 	  }
- 
-+	/* Handle calls via the PLT.  */
-+	if (stub_type == arm_stub_none
-+	    && h != NULL
-+	    && splt != NULL
-+	    && h->plt.offset != (bfd_vma) -1)
-+	  {
-+	    value = (splt->output_section->vma
-+		     + splt->output_offset
-+		     + h->plt.offset);
-+
-+	    if (globals->use_blx && r_type == R_ARM_THM_CALL)
-+	      {
-+		/* If the Thumb BLX instruction is available, convert
-+		   the BL to a BLX instruction to call the ARM-mode
-+		   PLT entry.  */
-+		lower_insn = (lower_insn & ~0x1000) | 0x0800;
-+		sym_flags = STT_FUNC;
-+	      }
-+	    else
-+	      {
-+		/* Target the Thumb stub before the ARM PLT entry.  */
-+		value -= PLT_THUMB_STUB_SIZE;
-+		sym_flags = STT_ARM_TFUNC;
-+	      }
-+	    *unresolved_reloc_p = FALSE;
-+	  }
-+
- 	relocation = value + signed_addend;
- 
- 	relocation -= (input_section->output_section->vma
-@@ -9298,11 +9340,26 @@
- elf32_arm_final_link (bfd *abfd, struct bfd_link_info *info)
- {
-   struct elf32_arm_link_hash_table *globals = elf32_arm_hash_table (info);
-+  asection *sec, *osec;
- 
-   /* Invoke the regular ELF backend linker to do all the work.  */
-   if (!bfd_elf_final_link (abfd, info))
-     return FALSE;
- 
-+  /* Process stub sections (eg BE8 encoding, ...).  */
-+  struct elf32_arm_link_hash_table *htab = elf32_arm_hash_table (info);
-+  int i;
-+  for(i=0; i<htab->top_id; i++) {
-+    sec = htab->stub_group[i].stub_sec;
-+    if (sec) {
-+      osec = sec->output_section;
-+      elf32_arm_write_section (abfd, info, sec, sec->contents);
-+      if (! bfd_set_section_contents (abfd, osec, sec->contents,
-+				      sec->output_offset, sec->size))
-+	return FALSE;
-+    }
-+  }
-+
-   /* Write out any glue sections now that we have created all the
-      stubs.  */
-   if (globals->bfd_of_glue_owner != NULL)
-@@ -12875,6 +12932,7 @@
-   sym.st_other = 0;
-   sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE);
-   sym.st_shndx = osi->sec_shndx;
-+  elf32_arm_section_map_add (osi->sec, names[type][1], offset);
-   return osi->func (osi->finfo, names[type], &sym, osi->sec, NULL) == 1;
- }
- 
diff --git a/tools/toolchain-patches/binutils-2.20.1-texinfo-fix.diff b/tools/toolchain-patches/binutils-2.20.1-texinfo-fix.diff
deleted file mode 100644
index cca0861eef..0000000000
--- a/tools/toolchain-patches/binutils-2.20.1-texinfo-fix.diff
+++ /dev/null
@@ -1,21 +0,0 @@
-diff -ru binutils-2.20.1-orig/bfd/doc/bfd.texinfo binutils-2.20.1/bfd/doc/bfd.texinfo
---- binutils-2.20.1-orig/bfd/doc/bfd.texinfo 2013-05-12 17:28:30.461074959 +0200
-+++ binutils-2.20.1/bfd/doc/bfd.texinfo 2013-05-12 17:26:54.175902524 +0200
-@@ -323,7 +323,7 @@
- @printindex cp
- 
- @tex
--% I think something like @colophon should be in texinfo.  In the
-+% I think something like @@colophon should be in texinfo.  In the
- % meantime:
- \long\def\colophon{\hbox to0pt{}\vfill
- \centerline{The body of this manual is set in}
-@@ -334,7 +334,7 @@
- \centerline{{\sl\fontname\tensl\/}}
- \centerline{are used for emphasis.}\vfill}
- \page\colophon
--% Blame: doc@cygnus.com, 28mar91.
-+% Blame: doc@@cygnus.com, 28mar91.
- @end tex
- 
- @bye
diff --git a/tools/toolchain-patches/rockbox-multilibs-noexceptions-arm-elf-eabi-gcc-4.4.2_1.diff b/tools/toolchain-patches/rockbox-multilibs-noexceptions-arm-elf-eabi-gcc-4.4.2_1.diff
deleted file mode 100644
index 3397153495..0000000000
--- a/tools/toolchain-patches/rockbox-multilibs-noexceptions-arm-elf-eabi-gcc-4.4.2_1.diff
+++ /dev/null
@@ -1,64 +0,0 @@
-diff -ur gcc-4.4.2-orig/gcc/config/arm/t-arm-elf gcc-4.4.2/gcc/config/arm/t-arm-elf
---- gcc-4.4.2-orig/gcc/config/arm/t-arm-elf	2008-06-12 13:29:47.000000000 -0400
-+++ gcc-4.4.2/gcc/config/arm/t-arm-elf	2009-11-05 20:14:57.000000000 -0500
-@@ -28,6 +28,11 @@
- #MULTILIB_MATCHES      += march?armv7=mcpu?cortex-r4
- #MULTILIB_MATCHES      += march?armv7=mcpu?cortex-m3
- 
-+# We build a lib for each specific CPU Rockbox targets.  If anyone knows a better
-+# way to do this, please let us know.
-+MULTILIB_OPTIONS    += mcpu=arm7tdmi/mcpu=arm9tdmi/mcpu=arm9e/mcpu=arm926ej-s/mcpu=arm1136jf-s
-+MULTILIB_DIRNAMES   += arm7tdmi arm9tdmi arm9e arm926ej-s arm1136jf-s
-+
- # MULTILIB_OPTIONS    += mcpu=ep9312
- # MULTILIB_DIRNAMES   += ep9312
- # MULTILIB_EXCEPTIONS += *mthumb/*mcpu=ep9312*
-@@ -40,8 +50,8 @@
- # MULTILIB_DIRNAMES   += fpu soft
- # MULTILIB_EXCEPTIONS += *mthumb/*mhard-float*
- # 
--# MULTILIB_OPTIONS    += mno-thumb-interwork/mthumb-interwork
--# MULTILIB_DIRNAMES   += normal interwork
-+MULTILIB_OPTIONS    += mno-thumb-interwork/mthumb-interwork
-+MULTILIB_DIRNAMES   += normal interwork
- # 
- # MULTILIB_OPTIONS    += fno-leading-underscore/fleading-underscore
- # MULTILIB_DIRNAMES   += elf under
-diff -ur gcc-4.4.2-orig/libgcc/Makefile.in gcc-4.4.2/libgcc/Makefile.in
---- gcc-4.4.2-orig/libgcc/Makefile.in	2009-04-09 19:23:07.000000000 -0400
-+++ gcc-4.4.2/libgcc/Makefile.in	2009-11-05 03:59:37.000000000 -0500
-@@ -393,14 +393,14 @@
- lib2-divmod-o = $(patsubst %,%$(objext),$(LIB2_DIVMOD_FUNCS))
- $(lib2-divmod-o): %$(objext): $(gcc_srcdir)/libgcc2.c
- 	$(gcc_compile) -DL$* -c $(gcc_srcdir)/libgcc2.c \
--	  -fexceptions -fnon-call-exceptions $(vis_hide)
-+	  -fno-exceptions -fno-non-call-exceptions $(vis_hide)
- libgcc-objects += $(lib2-divmod-o)
- 
- ifeq ($(enable_shared),yes)
- lib2-divmod-s-o = $(patsubst %,%_s$(objext),$(LIB2_DIVMOD_FUNCS))
- $(lib2-divmod-s-o): %_s$(objext): $(gcc_srcdir)/libgcc2.c
- 	$(gcc_s_compile) -DL$* -c $(gcc_srcdir)/libgcc2.c \
--	  -fexceptions -fnon-call-exceptions
-+	  -fno-exceptions -fno-non-call-exceptions
- libgcc-s-objects += $(lib2-divmod-s-o)
- endif
- 
-@@ -688,7 +688,7 @@
- # libgcc_eh.a, only LIB2ADDEH matters.  If we do, only LIB2ADDEHSTATIC and
- # LIB2ADDEHSHARED matter.  (Usually all three are identical.)
- 
--c_flags := -fexceptions
-+c_flags := -fno-exceptions
- 
- ifeq ($(enable_shared),yes)
- 
-@@ -710,7 +710,7 @@
- 
- # Build LIBUNWIND.
- 
--c_flags := -fexceptions
-+c_flags := -fno-exceptions
- 
- libunwind-objects += $(addsuffix $(objext),$(basename $(notdir $(LIBUNWIND))))
- 
diff --git a/tools/toolchain-patches/rockbox-multilibs-noexceptions-arm-elf-eabi-gcc-4.9.4.diff b/tools/toolchain-patches/rockbox-multilibs-noexceptions-arm-elf-eabi-gcc-4.9.4.diff
new file mode 100644
index 0000000000..cd98d3751c
--- /dev/null
+++ b/tools/toolchain-patches/rockbox-multilibs-noexceptions-arm-elf-eabi-gcc-4.9.4.diff
@@ -0,0 +1,56 @@
+diff -Naur gcc-4.9.4/gcc/config/arm/t-arm-elf gcc-4.9.4-fixed/gcc/config/arm/t-arm-elf
+--- gcc-4.9.4/gcc/config/arm/t-arm-elf	2014-01-02 17:23:26.000000000 -0500
++++ gcc-4.9.4-fixed/gcc/config/arm/t-arm-elf	2020-07-01 22:11:01.198403110 -0400
+@@ -44,6 +44,11 @@
+ #MULTILIB_EXCEPTIONS    += *mcpu=fa526/*mfloat-abi=hard*
+ #MULTILIB_EXCEPTIONS    += *mcpu=fa626/*mfloat-abi=hard*
+ 
++# We build a lib for each specific CPU Rockbox targets.  If anyone knows a better
++# way to do this, please let us know.
++MULTILIB_OPTIONS    += mcpu=arm7tdmi/mcpu=arm9tdmi/mcpu=arm9e/mcpu=arm926ej-s/mcpu=arm1136jf-s
++MULTILIB_DIRNAMES   += arm7tdmi arm9tdmi arm9e arm926ej-s arm1136jf-s
++
+ # MULTILIB_OPTIONS    += mcpu=ep9312
+ # MULTILIB_DIRNAMES   += ep9312
+ # MULTILIB_EXCEPTIONS += *mthumb/*mcpu=ep9312*
+@@ -56,8 +61,8 @@
+ # MULTILIB_DIRNAMES   += fpu soft
+ # MULTILIB_EXCEPTIONS += *mthumb/*mfloat-abi=hard*
+ # 
+-# MULTILIB_OPTIONS    += mno-thumb-interwork/mthumb-interwork
+-# MULTILIB_DIRNAMES   += normal interwork
++MULTILIB_OPTIONS    += mno-thumb-interwork/mthumb-interwork
++MULTILIB_DIRNAMES   += normal interwork
+ # 
+ # MULTILIB_OPTIONS    += fno-leading-underscore/fleading-underscore
+ # MULTILIB_DIRNAMES   += elf under
+diff -Naur gcc-4.9.4/libgcc/config/arm/t-bpabi gcc-4.9.4-fixed/libgcc/config/arm/t-bpabi
+--- gcc-4.9.4/libgcc/config/arm/t-bpabi	2012-08-17 11:06:06.000000000 -0400
++++ gcc-4.9.4-fixed/libgcc/config/arm/t-bpabi	2020-07-01 22:13:39.103762818 -0400
+@@ -17,4 +17,4 @@
+ # On ARM, specifying -fnon-call-exceptions will needlessly pull in
+ # the unwinder in simple programs which use 64-bit division.  Omitting
+ # the option is safe.
+-LIB2_DIVMOD_EXCEPTION_FLAGS := -fexceptions
++LIB2_DIVMOD_EXCEPTION_FLAGS := -fno-exceptions -fno-non-call-exceptions
+diff -Naur gcc-4.9.4/libgcc/Makefile.in gcc-4.9.4-fixed/libgcc/Makefile.in
+--- gcc-4.9.4/libgcc/Makefile.in	2014-01-08 11:37:08.000000000 -0500
++++ gcc-4.9.4-fixed/libgcc/Makefile.in	2020-07-01 22:11:01.199403087 -0400
+@@ -495,7 +495,7 @@
+ ifeq ($(LIB2_DIVMOD_EXCEPTION_FLAGS),)
+ # Provide default flags for compiling divmod functions, if they haven't been
+ # set already by a target-specific Makefile fragment.
+-LIB2_DIVMOD_EXCEPTION_FLAGS := -fexceptions -fnon-call-exceptions
++LIB2_DIVMOD_EXCEPTION_FLAGS := -fno-exceptions -fno-non-call-exceptions
+ endif
+ 
+ # Build LIB2_DIVMOD_FUNCS.
+@@ -816,7 +816,7 @@
+ # libgcc_eh.a, only LIB2ADDEH matters.  If we do, only LIB2ADDEHSTATIC and
+ # LIB2ADDEHSHARED matter.  (Usually all three are identical.)
+ 
+-c_flags := -fexceptions
++c_flags := -fno-exceptions
+ 
+ ifeq ($(enable_shared),yes)
+