Update buidlroot to version 2016.08.1

bsp/buildroot/package/gcc/4.5.4/1000-powerpc-link-with-math-lib.patch.conditional

@@ -1,125 +0,0 @@
-http://gcc.gnu.org/ml/gcc-patches/2008-10/msg00269.html
-
-On glibc the libc.so carries a copy of the math function copysignl() but
-on uClibc math functions like copysignl() live in libm. Since libgcc_s
-contains unresolved symbols, any attempt to link against libgcc_s
-without explicitely specifying -lm fails, resulting in a broken
-bootstrap of the compiler.
-
-Forward port to gcc 4.5.1 by Gustavo Zacarias <gustavo@zacarias.com.ar>
-
-diff -Nura gcc-4.5.1.orig/gcc/config/t-slibgcc-elf-ver gcc-4.5.1/gcc/config/t-slibgcc-elf-ver
---- gcc-4.5.1.orig/gcc/config/t-slibgcc-elf-ver	2010-11-03 14:35:08.644904042 -0300
-+++ gcc-4.5.1/gcc/config/t-slibgcc-elf-ver	2010-11-03 14:35:56.332904024 -0300
-@@ -27,7 +27,7 @@
- SHLIB_OBJS = @shlib_objs@
- SHLIB_DIR = @multilib_dir@
- SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@
--SHLIB_LC = -lc
-+SHLIB_LC = @libgcc_libm@ -lc
- SHLIB_MAKE_SOLINK = $(LN_S) $(SHLIB_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK)
- SHLIB_INSTALL_SOLINK = $(LN_S) $(SHLIB_SONAME) \
- 	$$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)
-diff -Nura gcc-4.5.1.orig/libgcc/Makefile.in gcc-4.5.1/libgcc/Makefile.in
---- gcc-4.5.1.orig/libgcc/Makefile.in	2010-11-03 14:32:44.272904042 -0300
-+++ gcc-4.5.1/libgcc/Makefile.in	2010-11-03 14:37:03.893904042 -0300
-@@ -39,6 +39,7 @@
- decimal_float = @decimal_float@
- enable_decimal_float = @enable_decimal_float@
- fixed_point = @fixed_point@
-+LIBGCC_LIBM = @LIBGCC_LIBM@
- 
- host_noncanonical = @host_noncanonical@
- 
-@@ -798,9 +799,10 @@
- 		@multilib_dir@,$(MULTIDIR),$(subst \
- 		@shlib_objs@,$(objects),$(subst \
- 		@shlib_base_name@,libgcc_s,$(subst \
-+		@libgcc_libm@,$(LIBGCC_LIBM),$(subst \
- 		@shlib_map_file@,$(mapfile),$(subst \
- 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(subst \
--		@shlib_slibdir@,$(shlib_slibdir),$(SHLIB_LINK))))))))
-+		@shlib_slibdir@,$(shlib_slibdir),$(SHLIB_LINK)))))))))
- 
- libunwind$(SHLIB_EXT): $(libunwind-s-objects) $(extra-parts)
- 	# @multilib_flags@ is still needed because this may use
-diff -Nura gcc-4.5.1.orig/libgcc/configure gcc-4.5.1/libgcc/configure
---- gcc-4.5.1.orig/libgcc/configure	2010-11-03 14:32:44.283904042 -0300
-+++ gcc-4.5.1/libgcc/configure	2010-11-03 14:39:48.685904042 -0300
-@@ -557,6 +557,7 @@
- extra_parts
- tmake_file
- set_use_emutls
-+LIBGCC_LIBM
- set_have_cc_tls
- vis_hide
- fixed_point
-@@ -3847,6 +3848,37 @@
-   set_use_emutls="-DUSE_EMUTLS"
- fi
- 
-+# On powerpc libgcc_s references copysignl which is a libm function but
-+# glibc apparently also provides it via libc as opposed to uClibc where
-+# it lives in libm.
-+echo "$as_me:$LINENO: checking for library containing copysignl" >&5
-+echo $ECHO_N "checking for library containing copysignl... $ECHO_C" >&6
-+if test "${libgcc_cv_copysignl_lib+set}" = set; then
-+  echo $ECHO_N "(cached) $ECHO_C" >&6
-+else
-+
-+    echo '#include <features.h>' > conftest.c
-+    echo 'int the_libc = __UCLIBC__ + __powerpc__;' >> conftest.c
-+    libgcc_cv_copysignl_lib="-lc"
-+    if { ac_try='${CC-cc} -S conftest.c -o conftest.s 1>&5'
-+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-+  (eval $ac_try) 2>&5
-+  ac_status=$?
-+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-+  (exit $ac_status); }; }
-+    then
-+       libgcc_cv_copysignl_lib="-lm"
-+    fi
-+    rm -f conftest.*
-+
-+fi
-+echo "$as_me:$LINENO: result: $libgcc_cv_copysignl_lib" >&5
-+echo "${ECHO_T}$libgcc_cv_copysignl_lib" >&6
-+
-+case /${libgcc_cv_copysignl_lib}/ in
-+  /-lm/) LIBGCC_LIBM="$LIBGCC_LIBM -lm" ;;
-+  *) LIBGCC_LIBM= ;;
-+esac
- 
- # Conditionalize the makefile for this target machine.
- tmake_file_=
-diff -Nura gcc-4.5.1.orig/libgcc/configure.ac gcc-4.5.1/libgcc/configure.ac
---- gcc-4.5.1.orig/libgcc/configure.ac	2010-11-03 14:32:44.735904042 -0300
-+++ gcc-4.5.1/libgcc/configure.ac	2010-11-03 14:42:11.278904045 -0300
-@@ -238,6 +238,27 @@
- fi
- AC_SUBST(set_have_cc_tls)
- 
-+# On powerpc libgcc_s references copysignl which is a libm function but
-+# glibc apparently also provides it via libc as opposed to uClibc where
-+# it lives in libm.
-+AC_CACHE_CHECK
-+  libgcc_cv_copysignl_lib,
-+    echo '#include <features.h>' > conftest.c
-+    echo 'int the_libc = __UCLIBC__ + __powerpc__;' >> conftest.c
-+    libgcc_cv_copysignl_lib="-lc"
-+    if AC_TRY_COMMAND(${CC-cc} -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD)
-+    then
-+       libgcc_cv_copysignl_lib="-lm"
-+    fi
-+    rm -f conftest.*
-+  ])
-+
-+case /${libgcc_cv_copysignl_lib}/ in
-+  /-lm/) LIBGCC_LIBM="$LIBGCC_LIBM -lm" ;;
-+  *) LIBGCC_LIBM= ;;
-+esac
-+AC_SUBST(LIBGCC_LIBM)
-+
- # See if we have emulated thread-local storage.
- GCC_CHECK_EMUTLS
- set_use_emutls=

bsp/buildroot/package/gcc/4.5.4/302-c99-snprintf.patch

@@ -1,13 +0,0 @@
-Index: gcc-4.3.0/libstdc++-v3/include/c_global/cstdio
-===================================================================
---- gcc-4.3.0/libstdc++-v3/include/c_global/cstdio	(revision 129202)
-+++ gcc-4.3.0/libstdc++-v3/include/c_global/cstdio	(working copy)
-@@ -144,7 +144,7 @@
- 
- _GLIBCXX_END_NAMESPACE
- 
--#if _GLIBCXX_USE_C99
-+#if _GLIBCXX_USE_C99 || defined __UCLIBC__
- 
- #undef snprintf
- #undef vfscanf

bsp/buildroot/package/gcc/4.5.4/305-libmudflap-susv3-legacy.patch

@@ -1,49 +0,0 @@
-Index: gcc-4.2/libmudflap/mf-hooks2.c
-===================================================================
---- gcc-4.2/libmudflap/mf-hooks2.c	(revision 119834)
-+++ gcc-4.2/libmudflap/mf-hooks2.c	(working copy)
-@@ -427,7 +427,7 @@
- {
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
--  bzero (s, n);
-+  memset (s, 0, n);
- }
- 
- 
-@@ -437,7 +437,7 @@
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(src, n, __MF_CHECK_READ, "bcopy src");
-   MF_VALIDATE_EXTENT(dest, n, __MF_CHECK_WRITE, "bcopy dest");
--  bcopy (src, dest, n);
-+  memmove (dest, src, n);
- }
- 
- 
-@@ -447,7 +447,7 @@
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(s1, n, __MF_CHECK_READ, "bcmp 1st arg");
-   MF_VALIDATE_EXTENT(s2, n, __MF_CHECK_READ, "bcmp 2nd arg");
--  return bcmp (s1, s2, n);
-+  return n == 0 ? 0 : memcmp (s1, s2, n);
- }
- 
- 
-@@ -456,7 +456,7 @@
-   size_t n = strlen (s);
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "index region");
--  return index (s, c);
-+  return strchr (s, c);
- }
- 
- 
-@@ -465,7 +465,7 @@
-   size_t n = strlen (s);
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "rindex region");
--  return rindex (s, c);
-+  return strrchr (s, c);
- }
- 
- /* XXX:  stpcpy, memccpy */

bsp/buildroot/package/gcc/4.5.4/810-arm-softfloat-libgcc.patch

@@ -1,38 +0,0 @@
-[PATCH] add the correct symbols to libgcc for uclibc arm softfloat
-
-Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
----
- gcc/config/arm/linux-elf.h |    2 +-
- gcc/config/arm/t-linux     |    6 +++++-
- 2 files changed, 6 insertions(+), 2 deletions(-)
-
-Index: gcc-4.4.0/gcc/config/arm/t-linux
-===================================================================
---- gcc-4.4.0.orig/gcc/config/arm/t-linux
-+++ gcc-4.4.0/gcc/config/arm/t-linux
-@@ -4,7 +4,11 @@
- 
- LIB1ASMSRC = arm/lib1funcs.asm
- LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
--	_arm_addsubdf3 _arm_addsubsf3
-+	_arm_addsubdf3 _arm_addsubsf3 \
-+	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
-+	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
-+	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
-+	_arm_fixsfsi _arm_fixunssfsi
- 
- # MULTILIB_OPTIONS = mhard-float/msoft-float
- # MULTILIB_DIRNAMES = hard-float soft-float
-Index: gcc-4.4.0/gcc/config/arm/linux-elf.h
-===================================================================
---- gcc-4.4.0.orig/gcc/config/arm/linux-elf.h
-+++ gcc-4.4.0/gcc/config/arm/linux-elf.h
-@@ -60,7 +60,7 @@
-    %{shared:-lc} \
-    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
- 
--#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
-+#define LIBGCC_SPEC "-lgcc"
- 
- #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
- 

bsp/buildroot/package/gcc/4.5.4/830-arm-pr43440.patch

@@ -1,345 +0,0 @@
-http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43440
-
---- gcc-4.4.4.orig/gcc/config/arm/aout.h
-+++ gcc-4.4.4/gcc/config/arm/aout.h
-@@ -163,34 +163,49 @@
-   {"mvdx12", 39},				\
-   {"mvdx13", 40},				\
-   {"mvdx14", 41},				\
--  {"mvdx15", 42},				\
--  {"d0", 63}, {"q0", 63},			\
--  {"d1", 65},					\
--  {"d2", 67}, {"q1", 67},			\
--  {"d3", 69},					\
--  {"d4", 71}, {"q2", 71},			\
--  {"d5", 73},					\
--  {"d6", 75}, {"q3", 75},			\
--  {"d7", 77},					\
--  {"d8", 79}, {"q4", 79},			\
--  {"d9", 81},					\
--  {"d10", 83}, {"q5", 83},			\
--  {"d11", 85},					\
--  {"d12", 87}, {"q6", 87},			\
--  {"d13", 89},					\
--  {"d14", 91}, {"q7", 91},			\
--  {"d15", 93},					\
--  {"q8", 95},					\
--  {"q9", 99},					\
--  {"q10", 103},					\
--  {"q11", 107},					\
--  {"q12", 111},					\
--  {"q13", 115},					\
--  {"q14", 119},					\
--  {"q15", 123}					\
-+  {"mvdx15", 42}				\
- }
- #endif
- 
-+#ifndef OVERLAPPING_REGISTER_NAMES
-+#define OVERLAPPING_REGISTER_NAMES       \
-+{					 \
-+  {"d0", 63, 2},			 \
-+  {"d1", 65, 2},			 \
-+  {"d2", 67, 2},			 \
-+  {"d3", 69, 2},			 \
-+  {"d4", 71, 2},			 \
-+  {"d5", 73, 2},			 \
-+  {"d6", 75, 2},			 \
-+  {"d7", 77, 2},			 \
-+  {"d8", 79, 2},			 \
-+  {"d9", 81, 2},			 \
-+  {"d10", 83, 2},			 \
-+  {"d11", 85, 2},			 \
-+  {"d12", 87, 2},			 \
-+  {"d13", 89, 2},			 \
-+  {"d14", 91, 2},			 \
-+  {"d15", 93, 2},			 \
-+  {"q0", 63, 4},			 \
-+  {"q1", 67, 4},			 \
-+  {"q2", 71, 4},			 \
-+  {"q3", 75, 4},			 \
-+  {"q4", 79, 4},			 \
-+  {"q5", 83, 4},			 \
-+  {"q6", 87, 4},			 \
-+  {"q7", 91, 4},			 \
-+  {"q8", 95, 4},			 \
-+  {"q9", 99, 4},			 \
-+  {"q10", 103, 4},			 \
-+  {"q11", 107, 4},			 \
-+  {"q12", 111, 4},			 \
-+  {"q13", 115, 4},			 \
-+  {"q14", 119, 4},			 \
-+  {"q15", 123, 4}			 \
-+}
-+#endif
-+
-+
- #ifndef NO_DOLLAR_IN_LABEL
- #define NO_DOLLAR_IN_LABEL 1
- #endif
---- gcc-4.4.4.orig/gcc/output.h
-+++ gcc-4.4.4/gcc/output.h
-@@ -169,6 +169,11 @@
-    Prefixes such as % are optional.  */
- extern int decode_reg_name (const char *);
- 
-+/* Similar to decode_reg_name, but takes an extra parameter that is a
-+   pointer to the number of (internal) registers described by the
-+   external name.  */
-+extern int decode_reg_name_and_count (const char *, int *);
-+
- extern void assemble_alias (tree, tree);
- 
- extern void default_assemble_visibility (tree, int);
---- gcc-4.4.4.orig/gcc/reginfo.c
-+++ gcc-4.4.4/gcc/reginfo.c
-@@ -800,39 +800,44 @@
- fix_register (const char *name, int fixed, int call_used)
- {
-   int i;
-+  int reg, nregs;
- 
-   /* Decode the name and update the primary form of
-      the register info.  */
--
--  if ((i = decode_reg_name (name)) >= 0)
-+  if ((reg = decode_reg_name_and_count (name, &nregs)) >= 0)
-     {
--      if ((i == STACK_POINTER_REGNUM
-+      gcc_assert (nregs >= 1);
-+      for (i = reg; i < reg + nregs; i++)
-+      {
-+        if ((i == STACK_POINTER_REGNUM
- #ifdef HARD_FRAME_POINTER_REGNUM
--	   || i == HARD_FRAME_POINTER_REGNUM
-+             || i == HARD_FRAME_POINTER_REGNUM
- #else
--	   || i == FRAME_POINTER_REGNUM
-+             || i == FRAME_POINTER_REGNUM
- #endif
--	   )
--	  && (fixed == 0 || call_used == 0))
--	{
--	  static const char * const what_option[2][2] = {
--	    { "call-saved", "call-used" },
--	    { "no-such-option", "fixed" }};
-+             )
-+            && (fixed == 0 || call_used == 0))
-+          {
-+            static const char * const what_option[2][2] = {
-+              { "call-saved", "call-used" },
-+              { "no-such-option", "fixed" }};
- 
--	  error ("can't use '%s' as a %s register", name,
--		 what_option[fixed][call_used]);
--	}
--      else
--	{
--	  fixed_regs[i] = fixed;
--	  call_used_regs[i] = call_used;
-+            error ("can't use '%s' as a %s register", name,
-+                   what_option[fixed][call_used]);
-+          }
-+        else
-+          {
-+            fixed_regs[i] = fixed;
-+            call_used_regs[i] = call_used;
- #ifdef CALL_REALLY_USED_REGISTERS
--	  if (fixed == 0)
--	    call_really_used_regs[i] = call_used;
-+             if (fixed == 0)
-+               call_really_used_regs[i] = call_used;
- #endif
--	}
--    }
--  else
-+           }
-+        }
-+      }
-+    else
-+
-     {
-       warning (0, "unknown register name: %s", name);
-     }
---- gcc-4.4.4.orig/gcc/stmt.c
-+++ gcc-4.4.4/gcc/stmt.c
-@@ -681,13 +681,14 @@
-   for (tail = clobbers; tail; tail = TREE_CHAIN (tail))
-     {
-       const char *regname;
-+      int nregs;
- 
-       if (TREE_VALUE (tail) == error_mark_node)
- 	return;
-       regname = TREE_STRING_POINTER (TREE_VALUE (tail));
- 
--      i = decode_reg_name (regname);
--      if (i >= 0 || i == -4)
-+      i = decode_reg_name_and_count (regname, &nregs);
-+      if (i == -4)
- 	++nclobbers;
-       else if (i == -2)
- 	error ("unknown register name %qs in %<asm%>", regname);
-@@ -695,14 +696,21 @@
-       /* Mark clobbered registers.  */
-       if (i >= 0)
-         {
--	  /* Clobbering the PIC register is an error.  */
--	  if (i == (int) PIC_OFFSET_TABLE_REGNUM)
--	    {
--	      error ("PIC register %qs clobbered in %<asm%>", regname);
--	      return;
--	    }
-+        int reg;
- 
--	  SET_HARD_REG_BIT (clobbered_regs, i);
-+        for (reg = i; reg < i + nregs; reg++)
-+          {
-+            ++nclobbers;
-+
-+            /* Clobbering the PIC register is an error.  */
-+            if (reg == (int) PIC_OFFSET_TABLE_REGNUM)
-+              {
-+                error ("PIC register clobbered by %qs in %<asm%>", regname);
-+                return;
-+              }
-+
-+            SET_HARD_REG_BIT (clobbered_regs, reg);
-+          }
- 	}
-     }
- 
-@@ -1012,8 +1020,9 @@
-       for (tail = clobbers; tail; tail = TREE_CHAIN (tail))
- 	{
- 	  const char *regname = TREE_STRING_POINTER (TREE_VALUE (tail));
--	  int j = decode_reg_name (regname);
--	  rtx clobbered_reg;
-+	  int reg, nregs;
-+          int j = decode_reg_name_and_count (regname, &nregs);
-+          rtx clobbered_reg;
- 
- 	  if (j < 0)
- 	    {
-@@ -1033,31 +1042,40 @@
- 	      /* Ignore unknown register, error already signaled.  */
- 	      continue;
- 	    }
--
--	  /* Use QImode since that's guaranteed to clobber just one reg.  */
--	  clobbered_reg = gen_rtx_REG (QImode, j);
--
--	  /* Do sanity check for overlap between clobbers and respectively
--	     input and outputs that hasn't been handled.  Such overlap
--	     should have been detected and reported above.  */
--	  if (!clobber_conflict_found)
--	    {
--	      int opno;
--
--	      /* We test the old body (obody) contents to avoid tripping
--		 over the under-construction body.  */
--	      for (opno = 0; opno < noutputs; opno++)
--		if (reg_overlap_mentioned_p (clobbered_reg, output_rtx[opno]))
--		  internal_error ("asm clobber conflict with output operand");
--
--	      for (opno = 0; opno < ninputs - ninout; opno++)
--		if (reg_overlap_mentioned_p (clobbered_reg,
--					     ASM_OPERANDS_INPUT (obody, opno)))
--		  internal_error ("asm clobber conflict with input operand");
-+        
-+          for (reg = j; reg < j + nregs; reg++)
-+            {
-+              /* Use QImode since that's guaranteed to clobber just
-+               * one reg.  */
-+              clobbered_reg = gen_rtx_REG (QImode, reg);
-+
-+              /* Do sanity check for overlap between clobbers and
-+                 respectively input and outputs that hasn't been
-+                 handled.  Such overlap should have been detected and
-+                 reported above.  */
-+              if (!clobber_conflict_found)
-+                {
-+                  int opno;
-+
-+                  /* We test the old body (obody) contents to avoid
-+                     tripping over the under-construction body.  */
-+                  for (opno = 0; opno < noutputs; opno++)
-+                    if (reg_overlap_mentioned_p (clobbered_reg,
-+                                                 output_rtx[opno]))
-+                      internal_error
-+                        ("asm clobber conflict with output operand");
-+
-+                  for (opno = 0; opno < ninputs - ninout; opno++)
-+                    if (reg_overlap_mentioned_p (clobbered_reg,
-+                                                 ASM_OPERANDS_INPUT (obody,
-+                                                                     opno)))
-+                      internal_error
-+                        ("asm clobber conflict with input operand");
-+                }
-+  
-+              XVECEXP (body, 0, i++)
-+                = gen_rtx_CLOBBER (VOIDmode, clobbered_reg);
- 	    }
--
--	  XVECEXP (body, 0, i++)
--	    = gen_rtx_CLOBBER (VOIDmode, clobbered_reg);
- 	}
- 
-       emit_insn (body);
---- gcc-4.4.4.orig/gcc/varasm.c
-+++ gcc-4.4.4/gcc/varasm.c
-@@ -1031,8 +1031,11 @@
-    Prefixes such as % are optional.  */
- 
- int
--decode_reg_name (const char *asmspec)
-+decode_reg_name_and_count (const char *asmspec, int *pnregs)
- {
-+  /* Presume just one register is clobbered.  */
-+   *pnregs = 1;
-+
-   if (asmspec != 0)
-     {
-       int i;
-@@ -1058,6 +1061,25 @@
- 	    && ! strcmp (asmspec, strip_reg_name (reg_names[i])))
- 	  return i;
- 
-+#ifdef OVERLAPPING_REGISTER_NAMES
-+      {
-+      static const struct
-+      {
-+        const char *const name;
-+        const int number;
-+        const int nregs;
-+      } table[] = OVERLAPPING_REGISTER_NAMES;
-+
-+      for (i = 0; i < (int) ARRAY_SIZE (table); i++)
-+        if (table[i].name[0]
-+            && ! strcmp (asmspec, table[i].name))
-+          {
-+            *pnregs = table[i].nregs;
-+            return table[i].number;
-+          }
-+      }
-+#endif /* OVERLAPPING_REGISTER_NAMES */
-+
- #ifdef ADDITIONAL_REGISTER_NAMES
-       {
- 	static const struct { const char *const name; const int number; } table[]
-@@ -1081,6 +1103,15 @@
- 
-   return -1;
- }
-+
-+int
-+decode_reg_name (const char *name)
-+{
-+   int count;
-+   return decode_reg_name_and_count (name, &count);
-+}
-+
-+
- 
- /* Return true if DECL's initializer is suitable for a BSS section.  */
- 

bsp/buildroot/package/gcc/4.7.4/130-pr43538.patch

@@ -0,0 +1,25 @@
+From c037df1be41f8daf4d581d7ffa4ec8cfa640bccf Mon Sep 17 00:00:00 2001
+From: glisse <glisse@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 25 Apr 2014 08:03:08 +0000
+Subject: [PATCH] 2014-04-25  Marc Glisse  <marc.glisse@inria.fr>
+
+	PR target/43538
+	* mt-gnu: Don't reset CXXFLAGS_FOR_TARGET.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209784 138bc75d-0d04-0410-961f-82ee72b054a4
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ config/mt-gnu    | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/config/mt-gnu b/config/mt-gnu
+index 15bf417..5c696f5 100644
+--- a/config/mt-gnu
++++ b/config/mt-gnu
+@@ -1 +1 @@
+-CXXFLAGS_FOR_TARGET = $(CXXFLAGS) -D_GNU_SOURCE
++CXXFLAGS_FOR_TARGET += -D_GNU_SOURCE
+-- 
+2.1.4
+

bsp/buildroot/package/gcc/4.7.4/900-musl-support.patch

@@ -478,7 +478,7 @@ Index: b/gcc/config/mips/linux.h
 +#define MUSL_DYNAMIC_LINKER_E "%{EL:el}"
 +#endif
 +#undef MUSL_DYNAMIC_LINKER
-+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips" MUSL_DYNAMIC_LINKER_E ".so.1"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
 Index: b/gcc/config/rs6000/linux64.h
 ===================================================================
 --- a/gcc/config/rs6000/linux64.h

bsp/buildroot/package/gcc/4.8.5/130-fix_build_with_gcc-6.patch

@@ -0,0 +1,153 @@
+From 1e5f1089dec3af328fd03125d6778f666d0bd4e4 Mon Sep 17 00:00:00 2001
+From: edlinger <edlinger@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 25 Feb 2016 15:33:50 +0000
+Subject: [PATCH 1/1] 2016-02-25  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+        Backported from mainline
+        2016-02-19  Jakub Jelinek  <jakub@redhat.com>
+                    Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+        * Make-lang.in: Invoke gperf with -L C++.
+        * cfns.gperf: Remove prototypes for hash and libc_name_p
+        inlines.
+        * cfns.h: Regenerated.
+        * except.c (nothrow_libfn_p): Adjust.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-5-branch@233720 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Signed-off-by: Samuel Martin <s.martin49@gmail.com>
+---
+ gcc/cp/Make-lang.in |    2 +-
+ gcc/cp/cfns.gperf   |   10 ++--------
+ gcc/cp/cfns.h       |   41 ++++++++++++++---------------------------
+ gcc/cp/except.c     |    3 ++-
+ 5 files changed, 31 insertions(+), 37 deletions(-)
+
+diff --git a/gcc/cp/Make-lang.in b/gcc/cp/Make-lang.in
+index e98beb1..b09fb02 100644
+--- a/gcc/cp/Make-lang.in
++++ b/gcc/cp/Make-lang.in
+@@ -111,7 +111,7 @@ else
+ # deleting the $(srcdir)/cp/cfns.h file.
+ $(srcdir)/cp/cfns.h:
+ endif
+-	gperf -o -C -E -k '1-6,$$' -j1 -D -N 'libc_name_p' -L ANSI-C \
++	gperf -o -C -E -k '1-6,$$' -j1 -D -N 'libc_name_p' -L C++ \
+ 		$(srcdir)/cp/cfns.gperf --output-file $(srcdir)/cp/cfns.h
+ 
+ #
+diff --git a/gcc/cp/cfns.gperf b/gcc/cp/cfns.gperf
+index 68acd3d..214ecf6 100644
+--- a/gcc/cp/cfns.gperf
++++ b/gcc/cp/cfns.gperf
+@@ -1,3 +1,5 @@
++%language=C++
++%define class-name libc_name
+ %{
+ /* Copyright (C) 2000-2015 Free Software Foundation, Inc.
+ 
+@@ -16,14 +18,6 @@ for more details.
+ You should have received a copy of the GNU General Public License
+ along with GCC; see the file COPYING3.  If not see
+ <http://www.gnu.org/licenses/>.  */
+-#ifdef __GNUC__
+-__inline
+-#endif
+-static unsigned int hash (const char *, unsigned int);
+-#ifdef __GNUC__
+-__inline
+-#endif
+-const char * libc_name_p (const char *, unsigned int);
+ %}
+ %%
+ # The standard C library functions, for feeding to gperf; the result is used
+diff --git a/gcc/cp/cfns.h b/gcc/cp/cfns.h
+index 1c6665d..596f413 100644
+--- a/gcc/cp/cfns.h
++++ b/gcc/cp/cfns.h
+@@ -1,5 +1,5 @@
+-/* ANSI-C code produced by gperf version 3.0.3 */
+-/* Command-line: gperf -o -C -E -k '1-6,$' -j1 -D -N libc_name_p -L ANSI-C cfns.gperf  */
++/* C++ code produced by gperf version 3.0.4 */
++/* Command-line: gperf -o -C -E -k '1-6,$' -j1 -D -N libc_name_p -L C++ --output-file cfns.h cfns.gperf  */
+ 
+ #if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
+       && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
+@@ -28,7 +28,7 @@
+ #error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
+ #endif
+ 
+-#line 1 "cfns.gperf"
++#line 3 "cfns.gperf"
+ 
+ /* Copyright (C) 2000-2015 Free Software Foundation, Inc.
+ 
+@@ -47,25 +47,18 @@ for more details.
+ You should have received a copy of the GNU General Public License
+ along with GCC; see the file COPYING3.  If not see
+ <http://www.gnu.org/licenses/>.  */
+-#ifdef __GNUC__
+-__inline
+-#endif
+-static unsigned int hash (const char *, unsigned int);
+-#ifdef __GNUC__
+-__inline
+-#endif
+-const char * libc_name_p (const char *, unsigned int);
+ /* maximum key range = 391, duplicates = 0 */
+ 
+-#ifdef __GNUC__
+-__inline
+-#else
+-#ifdef __cplusplus
+-inline
+-#endif
+-#endif
+-static unsigned int
+-hash (register const char *str, register unsigned int len)
++class libc_name
++{
++private:
++  static inline unsigned int hash (const char *str, unsigned int len);
++public:
++  static const char *libc_name_p (const char *str, unsigned int len);
++};
++
++inline unsigned int
++libc_name::hash (register const char *str, register unsigned int len)
+ {
+   static const unsigned short asso_values[] =
+     {
+@@ -122,14 +115,8 @@ hash (register const char *str, register unsigned int len)
+   return hval + asso_values[(unsigned char)str[len - 1]];
+ }
+ 
+-#ifdef __GNUC__
+-__inline
+-#ifdef __GNUC_STDC_INLINE__
+-__attribute__ ((__gnu_inline__))
+-#endif
+-#endif
+ const char *
+-libc_name_p (register const char *str, register unsigned int len)
++libc_name::libc_name_p (register const char *str, register unsigned int len)
+ {
+   enum
+     {
+diff --git a/gcc/cp/except.c b/gcc/cp/except.c
+index 3ff1ce6..2f2e396 100644
+--- a/gcc/cp/except.c
++++ b/gcc/cp/except.c
+@@ -1040,7 +1040,8 @@ nothrow_libfn_p (const_tree fn)
+      unless the system headers are playing rename tricks, and if
+      they are, we don't want to be confused by them.  */
+   id = DECL_NAME (fn);
+-  return !!libc_name_p (IDENTIFIER_POINTER (id), IDENTIFIER_LENGTH (id));
++  return !!libc_name::libc_name_p (IDENTIFIER_POINTER (id),
++				   IDENTIFIER_LENGTH (id));
+ }
+ 
+ /* Returns nonzero if an exception of type FROM will be caught by a
+-- 
+1.7.1

bsp/buildroot/package/gcc/4.8.5/130-pr43538.patch

@@ -0,0 +1,25 @@
+From c037df1be41f8daf4d581d7ffa4ec8cfa640bccf Mon Sep 17 00:00:00 2001
+From: glisse <glisse@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 25 Apr 2014 08:03:08 +0000
+Subject: [PATCH] 2014-04-25  Marc Glisse  <marc.glisse@inria.fr>
+
+	PR target/43538
+	* mt-gnu: Don't reset CXXFLAGS_FOR_TARGET.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209784 138bc75d-0d04-0410-961f-82ee72b054a4
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ config/mt-gnu    | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/config/mt-gnu b/config/mt-gnu
+index 15bf417..5c696f5 100644
+--- a/config/mt-gnu
++++ b/config/mt-gnu
+@@ -1 +1 @@
+-CXXFLAGS_FOR_TARGET = $(CXXFLAGS) -D_GNU_SOURCE
++CXXFLAGS_FOR_TARGET += -D_GNU_SOURCE
+-- 
+2.1.4
+

bsp/buildroot/package/gcc/4.8.5/874-xtensa-add-uclinux-support.patch

@@ -0,0 +1,174 @@
+From 70c2cb98fb129b4766b5da0f945dc41fd568c77a Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Sat, 22 Aug 2015 08:44:26 +0300
+Subject: [PATCH] xtensa: add uclinux support
+
+2015-10-03  Max Filippov  <jcmvbkbc@gmail.com>
+gcc/
+	* config.gcc (xtensa*-*-uclinux*): New configuration.
+	* config/xtensa/uclinux.h: New file.
+	* config/xtensa/uclinux.opt: New file.
+
+libgcc/
+	* config.host (xtensa*-*-uclinux*): New configuration.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+Backported from: r228450
+
+ gcc/config.gcc                |  5 ++++
+ gcc/config/xtensa/uclinux.h   | 69 +++++++++++++++++++++++++++++++++++++++++++
+ gcc/config/xtensa/uclinux.opt | 32 ++++++++++++++++++++
+ libgcc/config.host            |  5 ++++
+ 4 files changed, 111 insertions(+)
+ create mode 100644 gcc/config/xtensa/uclinux.h
+ create mode 100644 gcc/config/xtensa/uclinux.opt
+
+diff --git a/gcc/config.gcc b/gcc/config.gcc
+index c52f5a8..56797bd 100644
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2995,6 +2995,11 @@ xtensa*-*-linux*)
+ 	tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h xtensa/linux.h"
+ 	tmake_file="${tmake_file} xtensa/t-xtensa"
+ 	;;
++xtensa*-*-uclinux*)
++	tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h xtensa/uclinux.h"
++	tmake_file="${tmake_file} xtensa/t-xtensa"
++	extra_options="${extra_options} xtensa/uclinux.opt"
++	;;
+ am33_2.0-*-linux*)
+ 	tm_file="mn10300/mn10300.h dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h mn10300/linux.h"
+ 	gas=yes gnu_ld=yes
+diff --git a/gcc/config/xtensa/uclinux.h b/gcc/config/xtensa/uclinux.h
+new file mode 100644
+index 0000000..4606020
+--- /dev/null
++++ b/gcc/config/xtensa/uclinux.h
+@@ -0,0 +1,69 @@
++/* Xtensa uClinux configuration.
++   Derived from the configuration for GCC for Intel i386 running Linux.
++   Copyright (C) 2001-2015 Free Software Foundation, Inc.
++
++This file is part of GCC.
++
++GCC is free software; you can redistribute it and/or modify it under
++the terms of the GNU General Public License as published by the Free
++Software Foundation; either version 3, or (at your option) any later
++version.
++
++GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++WARRANTY; without even the implied warranty of MERCHANTABILITY or
++FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++for more details.
++
++You should have received a copy of the GNU General Public License
++along with GCC; see the file COPYING3.  If not see
++<http://www.gnu.org/licenses/>.  */
++
++#undef TARGET_OS_CPP_BUILTINS
++#define TARGET_OS_CPP_BUILTINS()				\
++  do								\
++    {								\
++      GNU_USER_TARGET_OS_CPP_BUILTINS ();			\
++      builtin_define ("__uClinux__");				\
++    }								\
++  while (0)
++
++#undef SUBTARGET_CPP_SPEC
++#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
++
++#undef SIZE_TYPE
++#define SIZE_TYPE "unsigned int"
++
++#undef PTRDIFF_TYPE
++#define PTRDIFF_TYPE "int"
++
++#undef WCHAR_TYPE
++#define WCHAR_TYPE "long int"
++
++#undef WCHAR_TYPE_SIZE
++#define WCHAR_TYPE_SIZE 32
++
++#undef ASM_SPEC
++#define ASM_SPEC \
++ "%{mtext-section-literals:--text-section-literals} \
++  %{mno-text-section-literals:--no-text-section-literals} \
++  %{mtarget-align:--target-align} \
++  %{mno-target-align:--no-target-align} \
++  %{mlongcalls:--longcalls} \
++  %{mno-longcalls:--no-longcalls} \
++  %{mauto-litpools:--auto-litpools} \
++  %{mno-auto-litpools:--no-auto-litpools}"
++
++#undef LINK_SPEC
++#define LINK_SPEC "%{!no-elf2flt:%{!elf2flt*:-elf2flt}}"
++
++#undef LOCAL_LABEL_PREFIX
++#define LOCAL_LABEL_PREFIX	"."
++
++/* Always enable "-fpic" for Xtensa Linux.  */
++#define XTENSA_ALWAYS_PIC 1
++
++#undef TARGET_LIBC_HAS_FUNCTION
++#define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
++
++#undef DBX_REGISTER_NUMBER
++
+diff --git a/gcc/config/xtensa/uclinux.opt b/gcc/config/xtensa/uclinux.opt
+new file mode 100644
+index 0000000..95ef777
+--- /dev/null
++++ b/gcc/config/xtensa/uclinux.opt
+@@ -0,0 +1,32 @@
++; Xtensa uClinux options.
++
++; Copyright (C) 2015 Free Software Foundation, Inc.
++;
++; This file is part of GCC.
++;
++; GCC is free software; you can redistribute it and/or modify it under
++; the terms of the GNU General Public License as published by the Free
++; Software Foundation; either version 3, or (at your option) any later
++; version.
++;
++; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++; WARRANTY; without even the implied warranty of MERCHANTABILITY or
++; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++; for more details.
++;
++; You should have received a copy of the GNU General Public License
++; along with GCC; see the file COPYING3.  If not see
++; <http://www.gnu.org/licenses/>.
++
++; See the GCC internals manual (options.texi) for a description of
++; this file's format.
++
++; Please try to keep this file in ASCII collating order.
++
++elf2flt
++Driver
++
++elf2flt=
++Driver JoinedOrMissing
++
++; This comment is to ensure we retain the blank line above.
+diff --git a/libgcc/config.host b/libgcc/config.host
+index 2c64756..2ee92c1 100644
+--- a/libgcc/config.host
++++ b/libgcc/config.host
+@@ -1295,6 +1295,11 @@ xtensa*-*-linux*)
+ 	tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
+ 	md_unwind_header=xtensa/linux-unwind.h
+ 	;;
++xtensa*-*-uclinux*)
++	tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
++	md_unwind_header=xtensa/linux-unwind.h
++	extra_parts="$extra_parts crtbeginS.o crtbeginT.o crtendS.o"
++	;;
+ am33_2.0-*-linux*)
+ 	# Don't need crtbeginT.o from *-*-linux* default.
+ 	extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
+-- 
+1.8.1.4
+

bsp/buildroot/package/gcc/4.8.5/890-fix-m68k-compile.patch

@@ -0,0 +1,15 @@
+remove unused header, which breaks the toolchain building
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-4.8.5.orig/libgcc/config/m68k/linux-atomic.c gcc-4.8.5/libgcc/config/m68k/linux-atomic.c
+--- gcc-4.8.5.orig/libgcc/config/m68k/linux-atomic.c	2013-02-04 20:06:20.000000000 +0100
++++ gcc-4.8.5/libgcc/config/m68k/linux-atomic.c	2016-03-19 00:18:12.000000000 +0100
+@@ -33,7 +33,6 @@
+    using the kernel helper defined below.  There is no support for
+    64-bit operations yet.  */
+ 
+-#include <asm/unistd.h>
+ #include <stdbool.h>
+ 
+ #ifndef __NR_atomic_cmpxchg_32

bsp/buildroot/package/gcc/4.8.5/891-fix-m68k-uclinux.patch

@@ -0,0 +1,18 @@
+avoids internal compiler error while compiling linux-atomic.c
+See here:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53833
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-4.8.5.orig/libgcc/config.host gcc-4.8.5/libgcc/config.host
+--- gcc-4.8.5.orig/libgcc/config.host	2014-03-20 17:12:30.000000000 +0100
++++ gcc-4.8.5/libgcc/config.host	2016-04-27 15:04:01.521171537 +0200
+@@ -689,7 +689,7 @@
+ m68k*-*-openbsd*)
+ 	;;
+ m68k-*-uclinux*)	# Motorola m68k/ColdFire running uClinux with uClibc
+-	tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
++	tmake_file="$tmake_file m68k/t-floatlib"
+ 	md_unwind_header=m68k/linux-unwind.h
+ 	;;
+ m68k-*-linux*)			# Motorola m68k's running GNU/Linux

bsp/buildroot/package/gcc/4.8.5/900-musl-support.patch

@@ -332,7 +332,7 @@ Index: b/gcc/config/mips/linux.h
 +#define MUSL_DYNAMIC_LINKER_E "%{EL:el}"
 +#endif
 +#undef MUSL_DYNAMIC_LINKER
-+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips" MUSL_DYNAMIC_LINKER_E ".so.1"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
 Index: b/gcc/config/rs6000/linux64.h
 ===================================================================
 --- a/gcc/config/rs6000/linux64.h

bsp/buildroot/package/gcc/4.8.5/930-libgcc-disable-split-stack-nothreads.patch

@@ -0,0 +1,14 @@
+disable split-stack for non-thread builds
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-4.8.5.orig/libgcc/config/t-stack gcc-4.8.5/libgcc/config/t-stack
+--- gcc-4.8.5.orig/libgcc/config/t-stack	2010-10-01 21:31:49.000000000 +0200
++++ gcc-4.8.5/libgcc/config/t-stack	2016-03-07 05:28:12.000000000 +0100
+@@ -1,4 +1,6 @@
+ # Makefile fragment to provide generic support for -fsplit-stack.
+ # This should be used in config.host for any host which supports
+ # -fsplit-stack.
++ifeq ($(enable_threads),yes)
+ LIB2ADD_ST += $(srcdir)/generic-morestack.c $(srcdir)/generic-morestack-thread.c
++endif

bsp/buildroot/package/gcc/4.8.5/940-uclinux-enable-threads.patch

@@ -0,0 +1,19 @@
+Enable POSIX threads for uClinux targets
+Reported upstream:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-4.8.5.orig/gcc/config.gcc gcc-4.8.5/gcc/config.gcc
+--- gcc-4.8.5.orig/gcc/config.gcc	2015-05-21 22:57:29.000000000 +0200
++++ gcc-4.8.5/gcc/config.gcc	2016-07-02 20:35:24.107644834 +0200
+@@ -741,6 +741,9 @@
+ *-*-uclinux*)
+   extra_options="$extra_options gnu-user.opt"
+   use_gcc_stdint=wrap
++  case ${enable_threads} in
++    "" | yes | posix) thread_file='posix' ;;
++  esac
+   tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
+   ;;
+ *-*-rdos*)

bsp/buildroot/package/gcc/4.9.3/850-libstdcxx-uclibc-c99.patch

@@ -1,255 +0,0 @@
-Allow C99-depending features of libstdc++ with uClibc
-
-The libstdc++ code is fairly restrictive on how it checks for C99
-compatibility: it requires *complete* C99 support to enable certain
-features. For example, uClibc provides a good number of C99 features,
-but not C99 complex number support. For this reason, libstdc++
-completely disables many the standard C++ methods that can in fact
-work because uClibc provides the necessary functions.
-
-This patch is similar and highly inspired from
-https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58393, but implemented in
-a way that doesn't involve changing the configure.ac script, as
-autoreconfiguring gcc is complicated. It simply relies on the fact
-that uClibc defines the __UCLIBC__ definition.
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-[Gustavo: update for 4.9.3]
-
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/config/locale/generic/c_locale.h gcc-4.9.3/libstdc++-v3/config/locale/generic/c_locale.h
---- gcc-4.9.3.orig/libstdc++-v3/config/locale/generic/c_locale.h	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/config/locale/generic/c_locale.h	2015-06-27 06:46:04.420022179 -0300
-@@ -70,7 +70,7 @@
-     __builtin_va_list __args;
-     __builtin_va_start(__args, __fmt);
- 
--#ifdef _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
-     const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args);
- #else
-     const int __ret = __builtin_vsprintf(__out, __fmt, __args);
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/config/locale/gnu/c_locale.h gcc-4.9.3/libstdc++-v3/config/locale/gnu/c_locale.h
---- gcc-4.9.3.orig/libstdc++-v3/config/locale/gnu/c_locale.h	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/config/locale/gnu/c_locale.h	2015-06-27 06:46:04.465023743 -0300
-@@ -88,7 +88,7 @@
-     __builtin_va_list __args;
-     __builtin_va_start(__args, __fmt);
- 
--#ifdef _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
-     const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args);
- #else
-     const int __ret = __builtin_vsprintf(__out, __fmt, __args);
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/bits/basic_string.h gcc-4.9.3/libstdc++-v3/include/bits/basic_string.h
---- gcc-4.9.3.orig/libstdc++-v3/include/bits/basic_string.h	2015-05-28 13:27:46.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/bits/basic_string.h	2015-06-27 06:49:04.741284648 -0300
-@@ -2844,7 +2844,7 @@
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
- 
--#if __cplusplus >= 201103L && defined(_GLIBCXX_USE_C99)
-+#if __cplusplus >= 201103L && (defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__))
- 
- #include <ext/string_conversions.h>
- 
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/bits/locale_facets_nonio.tcc gcc-4.9.3/libstdc++-v3/include/bits/locale_facets_nonio.tcc
---- gcc-4.9.3.orig/libstdc++-v3/include/bits/locale_facets_nonio.tcc	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/bits/locale_facets_nonio.tcc	2015-06-27 06:46:04.466023777 -0300
-@@ -572,7 +572,7 @@
-     {
-       const locale __loc = __io.getloc();
-       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
--#ifdef _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
-       // First try a buffer perhaps big enough.
-       int __cs_size = 64;
-       char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/bits/locale_facets.tcc gcc-4.9.3/libstdc++-v3/include/bits/locale_facets.tcc
---- gcc-4.9.3.orig/libstdc++-v3/include/bits/locale_facets.tcc	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/bits/locale_facets.tcc	2015-06-27 06:46:04.466023777 -0300
-@@ -987,7 +987,7 @@
- 	char __fbuf[16];
- 	__num_base::_S_format_float(__io, __fbuf, __mod);
- 
--#ifdef _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 	// First try a buffer perhaps big enough (most probably sufficient
- 	// for non-ios_base::fixed outputs)
- 	int __cs_size = __max_digits * 3;
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/c_compatibility/math.h gcc-4.9.3/libstdc++-v3/include/c_compatibility/math.h
---- gcc-4.9.3.orig/libstdc++-v3/include/c_compatibility/math.h	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/c_compatibility/math.h	2015-06-27 06:46:04.466023777 -0300
-@@ -56,7 +56,7 @@
- using std::floor;
- using std::fmod;
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- using std::fpclassify;
- using std::isfinite;
- using std::isinf;
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/c_compatibility/wchar.h gcc-4.9.3/libstdc++-v3/include/c_compatibility/wchar.h
---- gcc-4.9.3.orig/libstdc++-v3/include/c_compatibility/wchar.h	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/c_compatibility/wchar.h	2015-06-27 06:46:04.466023777 -0300
-@@ -103,7 +103,7 @@
- using std::wmemset;
- using std::wcsftime;
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- using std::wcstold;
- using std::wcstoll;
- using std::wcstoull;
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/c_global/cstdio gcc-4.9.3/libstdc++-v3/include/c_global/cstdio
---- gcc-4.9.3.orig/libstdc++-v3/include/c_global/cstdio	2014-01-23 18:17:15.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/c_global/cstdio	2015-06-27 06:46:04.481024298 -0300
-@@ -146,7 +146,7 @@
-   using ::vsprintf;
- } // namespace
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- #undef snprintf
- #undef vfscanf
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/c_global/cstdlib gcc-4.9.3/libstdc++-v3/include/c_global/cstdlib
---- gcc-4.9.3.orig/libstdc++-v3/include/c_global/cstdlib	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/c_global/cstdlib	2015-06-27 06:46:04.466023777 -0300
-@@ -182,7 +182,7 @@
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- #undef _Exit
- #undef llabs
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/c_global/cwchar gcc-4.9.3/libstdc++-v3/include/c_global/cwchar
---- gcc-4.9.3.orig/libstdc++-v3/include/c_global/cwchar	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/c_global/cwchar	2015-06-27 06:46:04.466023777 -0300
-@@ -232,7 +232,7 @@
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- #undef wcstold
- #undef wcstoll
-@@ -289,7 +289,7 @@
-   using std::vwscanf;
- #endif
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
-   using std::wcstold;
-   using std::wcstoll;
-   using std::wcstoull;
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/c_std/cstdio gcc-4.9.3/libstdc++-v3/include/c_std/cstdio
---- gcc-4.9.3.orig/libstdc++-v3/include/c_std/cstdio	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/c_std/cstdio	2015-06-27 06:46:04.480024263 -0300
-@@ -144,7 +144,7 @@
-   using ::vsprintf;
- } // namespace std
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- #undef snprintf
- #undef vfscanf
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/c_std/cstdlib gcc-4.9.3/libstdc++-v3/include/c_std/cstdlib
---- gcc-4.9.3.orig/libstdc++-v3/include/c_std/cstdlib	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/c_std/cstdlib	2015-06-27 06:46:04.480024263 -0300
-@@ -180,7 +180,7 @@
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- #undef _Exit
- #undef llabs
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/c_std/cwchar gcc-4.9.3/libstdc++-v3/include/c_std/cwchar
---- gcc-4.9.3.orig/libstdc++-v3/include/c_std/cwchar	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/c_std/cwchar	2015-06-27 06:46:04.480024263 -0300
-@@ -228,7 +228,7 @@
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- #undef wcstold
- #undef wcstoll
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/ext/vstring.h gcc-4.9.3/libstdc++-v3/include/ext/vstring.h
---- gcc-4.9.3.orig/libstdc++-v3/include/ext/vstring.h	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/ext/vstring.h	2015-06-27 06:46:04.480024263 -0300
-@@ -2680,7 +2680,7 @@
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
- 
--#if ((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99))
-+#if ((__cplusplus >= 201103L) && (defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)))
- 
- #include <ext/string_conversions.h>
- 
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/tr1/cstdio gcc-4.9.3/libstdc++-v3/include/tr1/cstdio
---- gcc-4.9.3.orig/libstdc++-v3/include/tr1/cstdio	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/tr1/cstdio	2015-06-27 06:46:04.480024263 -0300
-@@ -33,7 +33,7 @@
- 
- #include <cstdio>
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- namespace std _GLIBCXX_VISIBILITY(default)
- {
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/tr1/cstdlib gcc-4.9.3/libstdc++-v3/include/tr1/cstdlib
---- gcc-4.9.3.orig/libstdc++-v3/include/tr1/cstdlib	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/tr1/cstdlib	2015-06-27 06:46:04.480024263 -0300
-@@ -35,7 +35,7 @@
- 
- #if _GLIBCXX_HOSTED
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- namespace std _GLIBCXX_VISIBILITY(default)
- {
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/tr1/cwchar gcc-4.9.3/libstdc++-v3/include/tr1/cwchar
---- gcc-4.9.3.orig/libstdc++-v3/include/tr1/cwchar	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/tr1/cwchar	2015-06-27 06:46:04.480024263 -0300
-@@ -52,7 +52,7 @@
-   using std::vwscanf;
- #endif
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
-   using std::wcstold;
-   using std::wcstoll;
-   using std::wcstoull;
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/include/tr1/stdlib.h gcc-4.9.3/libstdc++-v3/include/tr1/stdlib.h
---- gcc-4.9.3.orig/libstdc++-v3/include/tr1/stdlib.h	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/include/tr1/stdlib.h	2015-06-27 06:46:04.481024298 -0300
-@@ -33,7 +33,7 @@
- 
- #if _GLIBCXX_HOSTED
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- using std::tr1::atoll;
- using std::tr1::strtoll;
-diff -Nura gcc-4.9.3.orig/libstdc++-v3/src/c++11/debug.cc gcc-4.9.3/libstdc++-v3/src/c++11/debug.cc
---- gcc-4.9.3.orig/libstdc++-v3/src/c++11/debug.cc	2014-01-02 19:30:10.000000000 -0300
-+++ gcc-4.9.3/libstdc++-v3/src/c++11/debug.cc	2015-06-27 06:46:04.481024298 -0300
-@@ -788,7 +788,7 @@
- 				     int __n __attribute__ ((__unused__)), 
- 				     const char* __fmt, _Tp __s) const throw ()
-     {
--#ifdef _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
-       std::snprintf(__buf, __n, __fmt, __s);
- #else
-       std::sprintf(__buf, __fmt, __s);

bsp/buildroot/package/gcc/4.9.3/920-libgcc-remove-unistd-header.patch

@@ -1,12 +0,0 @@
-Upstream status: In progress
-
---- a/libgcc/config/nios2/linux-atomic.c
-+++ b/libgcc/config/nios2/linux-atomic.c
-@@ -20,7 +20,6 @@
- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
- <http://www.gnu.org/licenses/>.  */
- 
--#include <asm/unistd.h>
- #define EFAULT  14
- #define EBUSY   16
- #define ENOSYS  38

bsp/buildroot/package/gcc/4.9.4/1000-powerpc-link-with-math-lib.patch.conditional

@@ -14,19 +14,19 @@ Forward port to gcc 4.5.1 by Gustavo Zacarias <gustavo@zacarias.com.ar>
  libgcc/configure.ac |   21 +++++++++++++++++++++
  3 files changed, 56 insertions(+), 1 deletion(-)
 
-Index: gcc-4.8.0/libgcc/Makefile.in
+Index: b/libgcc/Makefile.in
 ===================================================================
---- gcc-4.8.0.orig/libgcc/Makefile.in	2013-02-04 20:06:20.000000000 +0100
-+++ gcc-4.8.0/libgcc/Makefile.in	2013-03-24 09:12:43.000000000 +0100
-@@ -41,6 +41,7 @@
- decimal_float = @decimal_float@
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -42,6 +42,7 @@
+ enable_vtable_verify = @enable_vtable_verify@
  enable_decimal_float = @enable_decimal_float@
  fixed_point = @fixed_point@
 +LIBGCC_LIBM = @LIBGCC_LIBM@
  
  host_noncanonical = @host_noncanonical@
  target_noncanonical = @target_noncanonical@
-@@ -927,9 +928,10 @@
+@@ -943,9 +944,10 @@
  		@multilib_dir@,$(MULTIDIR),$(subst \
  		@shlib_objs@,$(objects) libgcc.a,$(subst \
  		@shlib_base_name@,libgcc_s,$(subst \
@@ -38,10 +38,10 @@ Index: gcc-4.8.0/libgcc/Makefile.in
  
  libunwind$(SHLIB_EXT): $(libunwind-s-objects) $(extra-parts)
  	# @multilib_flags@ is still needed because this may use
-Index: gcc-4.8.0/libgcc/configure
+Index: b/libgcc/configure
 ===================================================================
---- gcc-4.8.0.orig/libgcc/configure	2012-11-05 00:08:42.000000000 +0100
-+++ gcc-4.8.0/libgcc/configure	2013-03-24 09:12:43.000000000 +0100
+--- a/libgcc/configure
++++ b/libgcc/configure
 @@ -564,6 +564,7 @@
  tmake_file
  sfp_machine_header
@@ -50,7 +50,7 @@ Index: gcc-4.8.0/libgcc/configure
  set_have_cc_tls
  vis_hide
  fixed_point
-@@ -4481,6 +4482,37 @@
+@@ -4535,6 +4536,37 @@
  	fi
  fi
  
@@ -88,11 +88,11 @@ Index: gcc-4.8.0/libgcc/configure
  
  # Conditionalize the makefile for this target machine.
  tmake_file_=
-Index: gcc-4.8.0/libgcc/configure.ac
+Index: b/libgcc/configure.ac
 ===================================================================
---- gcc-4.8.0.orig/libgcc/configure.ac	2012-10-15 15:10:30.000000000 +0200
-+++ gcc-4.8.0/libgcc/configure.ac	2013-03-24 09:12:43.000000000 +0100
-@@ -326,6 +326,27 @@
+--- a/libgcc/configure.ac
++++ b/libgcc/configure.ac
+@@ -357,6 +357,27 @@
  fi
  AC_SUBST(set_have_cc_tls)
  

bsp/buildroot/package/gcc/4.9.4/111-pr65730.patch

@@ -16,11 +16,11 @@ Changes to ChangeLog are dropped.
  gcc/config/xtensa/xtensa.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)
 
-diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
-index eb039ba..7296e36 100644
+Index: b/gcc/config/xtensa/xtensa.c
+===================================================================
 --- a/gcc/config/xtensa/xtensa.c
 +++ b/gcc/config/xtensa/xtensa.c
-@@ -1461,8 +1461,9 @@ init_alignment_context (struct alignment_context *ac, rtx mem)
+@@ -1436,8 +1436,9 @@
    if (ac->shift != NULL_RTX)
      {
        /* Shift is the byte count, but we need the bitcount.  */
@@ -32,6 +32,3 @@ index eb039ba..7296e36 100644
  				       NULL_RTX, 1, OPTAB_DIRECT);
        ac->modemask = expand_simple_binop (SImode, ASHIFT,
  					  GEN_INT (GET_MODE_MASK (mode)),
--- 
-1.8.1.4
-

bsp/buildroot/package/gcc/4.9.4/120-gcc-config.gcc-fix-typo-for-powerpc-e6500-cpu_is_64b.patch

@@ -11,19 +11,16 @@ Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
  gcc/config.gcc | 2 +-
  2 files changed, 4 insertions(+), 1 deletion(-)
 
-diff --git a/gcc/config.gcc b/gcc/config.gcc
-index 4a7cbd2..9cc765e 100644
+Index: b/gcc/config.gcc
+===================================================================
 --- a/gcc/config.gcc
 +++ b/gcc/config.gcc
-@@ -439,7 +439,7 @@ powerpc*-*-*)
- 	cpu_type=rs6000
+@@ -441,7 +441,7 @@
  	extra_headers="ppc-asm.h altivec.h spe.h ppu_intrinsics.h paired.h spu2vmx.h vec_types.h si2vmx.h htmintrin.h htmxlintrin.h"
+ 	need_64bit_hwint=yes
  	case x$with_cpu in
 -	    xpowerpc64|xdefault64|x6[23]0|x970|xG5|xpower[345678]|xpower6x|xrs64a|xcell|xa2|xe500mc64|xe5500|Xe6500)
 +	    xpowerpc64|xdefault64|x6[23]0|x970|xG5|xpower[345678]|xpower6x|xrs64a|xcell|xa2|xe500mc64|xe5500|xe6500)
  		cpu_is_64bit=yes
  		;;
  	esac
--- 
-2.6.2
-

bsp/buildroot/package/gcc/4.9.4/130-pr43538.patch

@@ -0,0 +1,25 @@
+From c037df1be41f8daf4d581d7ffa4ec8cfa640bccf Mon Sep 17 00:00:00 2001
+From: glisse <glisse@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 25 Apr 2014 08:03:08 +0000
+Subject: [PATCH] 2014-04-25  Marc Glisse  <marc.glisse@inria.fr>
+
+	PR target/43538
+	* mt-gnu: Don't reset CXXFLAGS_FOR_TARGET.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209784 138bc75d-0d04-0410-961f-82ee72b054a4
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ config/mt-gnu    | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/config/mt-gnu b/config/mt-gnu
+index 15bf417..5c696f5 100644
+--- a/config/mt-gnu
++++ b/config/mt-gnu
+@@ -1 +1 @@
+-CXXFLAGS_FOR_TARGET = $(CXXFLAGS) -D_GNU_SOURCE
++CXXFLAGS_FOR_TARGET += -D_GNU_SOURCE
+-- 
+2.1.4
+

bsp/buildroot/package/gcc/4.9.4/140-sanitizer-Fix-build-with-_FILE_OFFSET_BITS-64.patch

@@ -0,0 +1,37 @@
+From 3c536954a67a883630f4a7513a27f02a892c3dcb Mon Sep 17 00:00:00 2001
+From: Evgeniy Stepanov <eugeni.stepanov@gmail.com>
+Date: Tue, 21 Oct 2014 21:08:13 +0000
+Subject: [PATCH] [sanitizer] Fix build with _FILE_OFFSET_BITS=64.
+
+Sanitizer source is not affected by _FILE_OFFSET_BITS in general,
+but this one file must be built with 32-bit off_t. More details in the code.
+
+git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@220328 91177308-0d34-0410-b5e6-96231b3b80d8
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ lib/sanitizer_common/sanitizer_platform_limits_posix.cc | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
+index bbc1108..fc09522 100644
+--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
++++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
+@@ -13,7 +13,15 @@
+ 
+ #include "sanitizer_platform.h"
+ #if SANITIZER_LINUX || SANITIZER_MAC
++// Tests in this file assume that off_t-dependent data structures match the
++// libc ABI. For example, struct dirent here is what readdir() function (as
++// exported from libc) returns, and not the user-facing "dirent", which
++// depends on _FILE_OFFSET_BITS setting.
++// To get this "true" dirent definition, we undefine _FILE_OFFSET_BITS below.
++#ifdef _FILE_OFFSET_BITS
++#undef _FILE_OFFSET_BITS
++#endif
+ 
+ #include "sanitizer_internal_defs.h"
+ #include "sanitizer_platform_limits_posix.h"
+ 
+-- 
+2.1.4
+

bsp/buildroot/package/gcc/4.9.4/840-microblaze-enable-dwarf-eh-support.patch

@@ -33,11 +33,11 @@ Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
  gcc/config/microblaze/microblaze.md              | 11 +++++++++
  5 files changed, 52 insertions(+), 7 deletions(-)
 
-diff --git a/gcc/common/config/microblaze/microblaze-common.c b/gcc/common/config/microblaze/microblaze-common.c
-index 5835acc..85e6a53 100644
+Index: b/gcc/common/config/microblaze/microblaze-common.c
+===================================================================
 --- a/gcc/common/config/microblaze/microblaze-common.c
 +++ b/gcc/common/config/microblaze/microblaze-common.c
-@@ -39,7 +39,4 @@ static const struct default_options microblaze_option_optimization_table[] =
+@@ -37,7 +37,4 @@
  #undef  TARGET_OPTION_OPTIMIZATION_TABLE
  #define TARGET_OPTION_OPTIMIZATION_TABLE microblaze_option_optimization_table
  
@@ -45,11 +45,11 @@ index 5835acc..85e6a53 100644
 -#define TARGET_EXCEPT_UNWIND_INFO  sjlj_except_unwind_info
 -
  struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
-diff --git a/gcc/config/microblaze/microblaze-protos.h b/gcc/config/microblaze/microblaze-protos.h
-index c30ec72..260f4e4 100644
+Index: b/gcc/config/microblaze/microblaze-protos.h
+===================================================================
 --- a/gcc/config/microblaze/microblaze-protos.h
 +++ b/gcc/config/microblaze/microblaze-protos.h
-@@ -56,6 +56,7 @@ extern bool microblaze_tls_referenced_p (rtx);
+@@ -54,6 +54,7 @@
  extern int symbol_mentioned_p (rtx);
  extern int label_mentioned_p (rtx);
  extern bool microblaze_cannot_force_const_mem (enum machine_mode, rtx);
@@ -57,11 +57,11 @@ index c30ec72..260f4e4 100644
  #endif  /* RTX_CODE */
  
  /* Declare functions in microblaze-c.c.  */
-diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
-index fe61fce..15166d3 100644
+Index: b/gcc/config/microblaze/microblaze.c
+===================================================================
 --- a/gcc/config/microblaze/microblaze.c
 +++ b/gcc/config/microblaze/microblaze.c
-@@ -1999,6 +1999,11 @@ microblaze_must_save_register (int regno)
+@@ -1906,6 +1906,11 @@
    if (frame_pointer_needed && (regno == HARD_FRAME_POINTER_REGNUM))
      return 1;
  
@@ -73,7 +73,7 @@ index fe61fce..15166d3 100644
    if (!crtl->is_leaf)
      {
        if (regno == MB_ABI_SUB_RETURN_ADDR_REGNUM)
-@@ -2026,6 +2031,13 @@ microblaze_must_save_register (int regno)
+@@ -1933,6 +1938,13 @@
  	return 1;
      }
  
@@ -87,7 +87,7 @@ index fe61fce..15166d3 100644
    return 0;
  }
  
-@@ -3131,6 +3143,12 @@ microblaze_expand_epilogue (void)
+@@ -2962,6 +2974,12 @@
        emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, fsiz_rtx));
      }
  
@@ -100,7 +100,7 @@ index fe61fce..15166d3 100644
    emit_jump_insn (gen_return_internal (gen_rtx_REG (Pmode, GP_REG_FIRST +
  						    MB_ABI_SUB_RETURN_ADDR_REGNUM)));
  }
-@@ -3427,10 +3445,13 @@ microblaze_return_addr (int count, rtx frame ATTRIBUTE_UNUSED)
+@@ -3256,10 +3274,13 @@
    if (count != 0)
      return NULL_RTX;
  
@@ -118,11 +118,11 @@ index fe61fce..15166d3 100644
  }
  
  /* Queue an .ident string in the queue of top-level asm statements.
-diff --git a/gcc/config/microblaze/microblaze.h b/gcc/config/microblaze/microblaze.h
-index 4072283..5e9f49c 100644
+Index: b/gcc/config/microblaze/microblaze.h
+===================================================================
 --- a/gcc/config/microblaze/microblaze.h
 +++ b/gcc/config/microblaze/microblaze.h
-@@ -184,6 +184,21 @@ extern enum pipeline_type microblaze_pipe;
+@@ -184,6 +184,21 @@
  #define INCOMING_RETURN_ADDR_RTX  			\
    gen_rtx_REG (VOIDmode, GP_REG_FIRST + MB_ABI_SUB_RETURN_ADDR_REGNUM)
  
@@ -144,11 +144,11 @@ index 4072283..5e9f49c 100644
  /* Use DWARF 2 debugging information by default.  */
  #define DWARF2_DEBUGGING_INFO
  #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
-diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md
-index ed6131a..dc2405f 100644
+Index: b/gcc/config/microblaze/microblaze.md
+===================================================================
 --- a/gcc/config/microblaze/microblaze.md
 +++ b/gcc/config/microblaze/microblaze.md
-@@ -2327,4 +2327,15 @@
+@@ -2261,4 +2261,15 @@
    (set_attr "mode"      "SI")
    (set_attr "length"    "4")])
  
@@ -164,6 +164,3 @@ index ed6131a..dc2405f 100644
 +
  (include "sync.md")
 +
--- 
-1.8.3.2
-

bsp/buildroot/package/gcc/4.9.4/850-libstdcxx-uclibc-c99.patch

@@ -14,6 +14,7 @@ autoreconfiguring gcc is complicated. It simply relies on the fact
 that uClibc defines the __UCLIBC__ definition.
 
 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+[Gustavo: update for 4.9.3]
 
 Index: b/libstdc++-v3/config/locale/generic/c_locale.h
 ===================================================================
@@ -45,28 +46,15 @@ Index: b/libstdc++-v3/include/bits/basic_string.h
 ===================================================================
 --- a/libstdc++-v3/include/bits/basic_string.h
 +++ b/libstdc++-v3/include/bits/basic_string.h
-@@ -2811,7 +2811,7 @@
+@@ -2843,7 +2843,7 @@
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace
  
--#if ((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99) \
-+#if ((__cplusplus >= 201103L) && (defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)) \
-      && !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF))
+-#if __cplusplus >= 201103L && defined(_GLIBCXX_USE_C99)
++#if __cplusplus >= 201103L && (defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__))
  
  #include <ext/string_conversions.h>
-Index: b/libstdc++-v3/include/bits/locale_facets.tcc
-===================================================================
---- a/libstdc++-v3/include/bits/locale_facets.tcc
-+++ b/libstdc++-v3/include/bits/locale_facets.tcc
-@@ -987,7 +987,7 @@
- 	char __fbuf[16];
- 	__num_base::_S_format_float(__io, __fbuf, __mod);
  
--#ifdef _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 	// First try a buffer perhaps big enough (most probably sufficient
- 	// for non-ios_base::fixed outputs)
- 	int __cs_size = __max_digits * 3;
 Index: b/libstdc++-v3/include/bits/locale_facets_nonio.tcc
 ===================================================================
 --- a/libstdc++-v3/include/bits/locale_facets_nonio.tcc
@@ -80,6 +68,19 @@ Index: b/libstdc++-v3/include/bits/locale_facets_nonio.tcc
        // First try a buffer perhaps big enough.
        int __cs_size = 64;
        char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
+Index: b/libstdc++-v3/include/bits/locale_facets.tcc
+===================================================================
+--- a/libstdc++-v3/include/bits/locale_facets.tcc
++++ b/libstdc++-v3/include/bits/locale_facets.tcc
+@@ -987,7 +987,7 @@
+ 	char __fbuf[16];
+ 	__num_base::_S_format_float(__io, __fbuf, __mod);
+ 
+-#ifdef _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ 	// First try a buffer perhaps big enough (most probably sufficient
+ 	// for non-ios_base::fixed outputs)
+ 	int __cs_size = __max_digits * 3;
 Index: b/libstdc++-v3/include/c_compatibility/math.h
 ===================================================================
 --- a/libstdc++-v3/include/c_compatibility/math.h
@@ -106,6 +107,19 @@ Index: b/libstdc++-v3/include/c_compatibility/wchar.h
  using std::wcstold;
  using std::wcstoll;
  using std::wcstoull;
+Index: b/libstdc++-v3/include/c_global/cstdio
+===================================================================
+--- a/libstdc++-v3/include/c_global/cstdio
++++ b/libstdc++-v3/include/c_global/cstdio
+@@ -146,7 +146,7 @@
+   using ::vsprintf;
+ } // namespace
+ 
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ 
+ #undef snprintf
+ #undef vfscanf
 Index: b/libstdc++-v3/include/c_global/cstdlib
 ===================================================================
 --- a/libstdc++-v3/include/c_global/cstdlib
@@ -145,7 +159,7 @@ Index: b/libstdc++-v3/include/c_std/cstdio
 ===================================================================
 --- a/libstdc++-v3/include/c_std/cstdio
 +++ b/libstdc++-v3/include/c_std/cstdio
-@@ -139,7 +139,7 @@
+@@ -144,7 +144,7 @@
    using ::vsprintf;
  } // namespace std
  
@@ -184,7 +198,7 @@ Index: b/libstdc++-v3/include/ext/vstring.h
 ===================================================================
 --- a/libstdc++-v3/include/ext/vstring.h
 +++ b/libstdc++-v3/include/ext/vstring.h
-@@ -2571,7 +2571,7 @@
+@@ -2680,7 +2680,7 @@
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace
  
@@ -249,7 +263,7 @@ Index: b/libstdc++-v3/src/c++11/debug.cc
 ===================================================================
 --- a/libstdc++-v3/src/c++11/debug.cc
 +++ b/libstdc++-v3/src/c++11/debug.cc
-@@ -787,7 +787,7 @@
+@@ -788,7 +788,7 @@
  				     int __n __attribute__ ((__unused__)), 
  				     const char* __fmt, _Tp __s) const throw ()
      {
@@ -258,16 +272,3 @@ Index: b/libstdc++-v3/src/c++11/debug.cc
        std::snprintf(__buf, __n, __fmt, __s);
  #else
        std::sprintf(__buf, __fmt, __s);
-Index: b/libstdc++-v3/include/c_global/cstdio
-===================================================================
---- a/libstdc++-v3/include/c_global/cstdio
-+++ b/libstdc++-v3/include/c_global/cstdio
-@@ -138,7 +138,7 @@
-   using ::vsprintf;
- } // namespace
- 
--#if _GLIBCXX_USE_C99
-+#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
- 
- #undef snprintf
- #undef vfscanf

bsp/buildroot/package/gcc/4.9.4/870-xtensa-add-mauto-litpools-option.patch

@@ -48,8 +48,8 @@ Changes to ChangeLogs and documentation are dropped.
  gcc/config/xtensa/xtensa.opt     |  4 ++++
  7 files changed, 54 insertions(+), 20 deletions(-)
 
-diff --git a/gcc/config/xtensa/constraints.md b/gcc/config/xtensa/constraints.md
-index 30f4c1f..773d4f9 100644
+Index: b/gcc/config/xtensa/constraints.md
+===================================================================
 --- a/gcc/config/xtensa/constraints.md
 +++ b/gcc/config/xtensa/constraints.md
 @@ -111,6 +111,11 @@
@@ -64,11 +64,11 @@ index 30f4c1f..773d4f9 100644
  ;; Memory constraints.  Do not use define_memory_constraint here.  Doing so
  ;; causes reload to force some constants into the constant pool, but since
  ;; the Xtensa constant pool can only be accessed with L32R instructions, it
-diff --git a/gcc/config/xtensa/elf.h b/gcc/config/xtensa/elf.h
-index e59bede..12056f7 100644
+Index: b/gcc/config/xtensa/elf.h
+===================================================================
 --- a/gcc/config/xtensa/elf.h
 +++ b/gcc/config/xtensa/elf.h
-@@ -48,7 +48,9 @@ along with GCC; see the file COPYING3.  If not see
+@@ -48,7 +48,9 @@
    %{mtarget-align:--target-align} \
    %{mno-target-align:--no-target-align} \
    %{mlongcalls:--longcalls} \
@@ -79,11 +79,11 @@ index e59bede..12056f7 100644
  
  #undef LIB_SPEC
  #define LIB_SPEC "-lc -lsim -lc -lhandlers-sim -lhal"
-diff --git a/gcc/config/xtensa/linux.h b/gcc/config/xtensa/linux.h
-index 675aacf..5b0243a 100644
+Index: b/gcc/config/xtensa/linux.h
+===================================================================
 --- a/gcc/config/xtensa/linux.h
 +++ b/gcc/config/xtensa/linux.h
-@@ -42,7 +42,9 @@ along with GCC; see the file COPYING3.  If not see
+@@ -42,7 +42,9 @@
    %{mtarget-align:--target-align} \
    %{mno-target-align:--no-target-align} \
    %{mlongcalls:--longcalls} \
@@ -94,8 +94,8 @@ index 675aacf..5b0243a 100644
  
  #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
  
-diff --git a/gcc/config/xtensa/predicates.md b/gcc/config/xtensa/predicates.md
-index e02209e..d7dfa11 100644
+Index: b/gcc/config/xtensa/predicates.md
+===================================================================
 --- a/gcc/config/xtensa/predicates.md
 +++ b/gcc/config/xtensa/predicates.md
 @@ -142,7 +142,8 @@
@@ -108,11 +108,11 @@ index e02209e..d7dfa11 100644
  			    && GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))))
  
  ;; Accept the floating point constant 1 in the appropriate mode.
-diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
-index eb039ba..206ff80 100644
+Index: b/gcc/config/xtensa/xtensa.c
+===================================================================
 --- a/gcc/config/xtensa/xtensa.c
 +++ b/gcc/config/xtensa/xtensa.c
-@@ -501,6 +501,9 @@ xtensa_valid_move (machine_mode mode, rtx *operands)
+@@ -477,6 +477,9 @@
      {
        int dst_regnum = xt_true_regnum (operands[0]);
  
@@ -121,8 +121,8 @@ index eb039ba..206ff80 100644
 +
        /* The stack pointer can only be assigned with a MOVSP opcode.  */
        if (dst_regnum == STACK_POINTER_REGNUM)
- 	return !TARGET_WINDOWED_ABI
-@@ -1069,7 +1072,7 @@ xtensa_emit_move_sequence (rtx *operands, machine_mode mode)
+ 	return (mode == SImode
+@@ -1044,7 +1047,7 @@
  	  return 1;
  	}
  
@@ -131,7 +131,7 @@ index eb039ba..206ff80 100644
  	{
  	  src = force_const_mem (SImode, src);
  	  operands[1] = src;
-@@ -2449,6 +2452,20 @@ print_operand (FILE *file, rtx x, int letter)
+@@ -2428,6 +2431,20 @@
  	}
        break;
  
@@ -152,11 +152,11 @@ index eb039ba..206ff80 100644
      default:
        if (GET_CODE (x) == REG || GET_CODE (x) == SUBREG)
  	fprintf (file, "%s", reg_names[xt_true_regnum (x)]);
-diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md
-index 6d84384..0e673a3 100644
+Index: b/gcc/config/xtensa/xtensa.md
+===================================================================
 --- a/gcc/config/xtensa/xtensa.md
 +++ b/gcc/config/xtensa/xtensa.md
-@@ -761,8 +761,8 @@
+@@ -799,8 +799,8 @@
  })
  
  (define_insn "movsi_internal"
@@ -167,7 +167,7 @@ index 6d84384..0e673a3 100644
    "xtensa_valid_move (SImode, operands)"
    "@
     movi.n\t%0, %x1
-@@ -774,15 +774,16 @@
+@@ -812,15 +812,16 @@
     mov\t%0, %1
     movsp\t%0, %1
     movi\t%0, %x1
@@ -186,7 +186,7 @@ index 6d84384..0e673a3 100644
  
  ;; 16-bit Integer moves
  
-@@ -796,21 +797,22 @@
+@@ -834,21 +835,22 @@
  })
  
  (define_insn "movhi_internal"
@@ -213,7 +213,7 @@ index 6d84384..0e673a3 100644
  
  ;; 8-bit Integer moves
  
-@@ -881,7 +883,7 @@
+@@ -919,7 +921,7 @@
  	(match_operand:SF 1 "general_operand" ""))]
    ""
  {
@@ -222,7 +222,7 @@ index 6d84384..0e673a3 100644
      operands[1] = force_const_mem (SFmode, operands[1]);
  
    if ((!register_operand (operands[0], SFmode)
-@@ -896,8 +898,8 @@
+@@ -934,8 +936,8 @@
  })
  
  (define_insn "movsf_internal"
@@ -233,7 +233,7 @@ index 6d84384..0e673a3 100644
    "((register_operand (operands[0], SFmode)
       || register_operand (operands[1], SFmode))
      && !(FP_REG_P (xt_true_regnum (operands[0]))
-@@ -912,13 +914,14 @@
+@@ -950,13 +952,14 @@
     mov\t%0, %1
     wfr\t%0, %1
     rfr\t%0, %1
@@ -250,7 +250,7 @@ index 6d84384..0e673a3 100644
  
  (define_insn "*lsiu"
    [(set (match_operand:SF 0 "register_operand" "=f")
-@@ -991,7 +994,7 @@
+@@ -997,7 +1000,7 @@
  	(match_operand:DF 1 "general_operand" ""))]
    ""
  {
@@ -259,7 +259,7 @@ index 6d84384..0e673a3 100644
      operands[1] = force_const_mem (DFmode, operands[1]);
  
    if (!register_operand (operands[0], DFmode)
-@@ -1002,8 +1005,8 @@
+@@ -1008,8 +1011,8 @@
  })
  
  (define_insn_and_split "movdf_internal"
@@ -270,11 +270,11 @@ index 6d84384..0e673a3 100644
    "register_operand (operands[0], DFmode)
     || register_operand (operands[1], DFmode)"
    "#"
-diff --git a/gcc/config/xtensa/xtensa.opt b/gcc/config/xtensa/xtensa.opt
-index 2fd6cee..21c6e96 100644
+Index: b/gcc/config/xtensa/xtensa.opt
+===================================================================
 --- a/gcc/config/xtensa/xtensa.opt
 +++ b/gcc/config/xtensa/xtensa.opt
-@@ -38,6 +38,10 @@ mtext-section-literals
+@@ -38,6 +38,10 @@
  Target
  Intersperse literal pools with code in the text section
  
@@ -285,6 +285,3 @@ index 2fd6cee..21c6e96 100644
  mserialize-volatile
  Target Report Mask(SERIALIZE_VOLATILE)
  -mno-serialize-volatile	Do not serialize volatile memory references with MEMW instructions
--- 
-1.8.1.4
-

bsp/buildroot/package/gcc/4.9.4/874-xtensa-add-uclinux-support.patch

@@ -0,0 +1,169 @@
+From 70c2cb98fb129b4766b5da0f945dc41fd568c77a Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Sat, 22 Aug 2015 08:44:26 +0300
+Subject: [PATCH] xtensa: add uclinux support
+
+2015-10-03  Max Filippov  <jcmvbkbc@gmail.com>
+gcc/
+	* config.gcc (xtensa*-*-uclinux*): New configuration.
+	* config/xtensa/uclinux.h: New file.
+	* config/xtensa/uclinux.opt: New file.
+
+libgcc/
+	* config.host (xtensa*-*-uclinux*): New configuration.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+Backported from: r228450
+
+ gcc/config.gcc                |  5 ++++
+ gcc/config/xtensa/uclinux.h   | 69 +++++++++++++++++++++++++++++++++++++++++++
+ gcc/config/xtensa/uclinux.opt | 32 ++++++++++++++++++++
+ libgcc/config.host            |  5 ++++
+ 4 files changed, 111 insertions(+)
+ create mode 100644 gcc/config/xtensa/uclinux.h
+ create mode 100644 gcc/config/xtensa/uclinux.opt
+
+Index: b/gcc/config.gcc
+===================================================================
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2871,6 +2871,11 @@
+ 	tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h xtensa/linux.h"
+ 	tmake_file="${tmake_file} xtensa/t-xtensa"
+ 	;;
++xtensa*-*-uclinux*)
++	tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h xtensa/uclinux.h"
++	tmake_file="${tmake_file} xtensa/t-xtensa"
++	extra_options="${extra_options} xtensa/uclinux.opt"
++	;;
+ am33_2.0-*-linux*)
+ 	tm_file="mn10300/mn10300.h dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h mn10300/linux.h"
+ 	gas=yes gnu_ld=yes
+Index: b/gcc/config/xtensa/uclinux.h
+===================================================================
+--- /dev/null
++++ b/gcc/config/xtensa/uclinux.h
+@@ -0,0 +1,69 @@
++/* Xtensa uClinux configuration.
++   Derived from the configuration for GCC for Intel i386 running Linux.
++   Copyright (C) 2001-2015 Free Software Foundation, Inc.
++
++This file is part of GCC.
++
++GCC is free software; you can redistribute it and/or modify it under
++the terms of the GNU General Public License as published by the Free
++Software Foundation; either version 3, or (at your option) any later
++version.
++
++GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++WARRANTY; without even the implied warranty of MERCHANTABILITY or
++FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++for more details.
++
++You should have received a copy of the GNU General Public License
++along with GCC; see the file COPYING3.  If not see
++<http://www.gnu.org/licenses/>.  */
++
++#undef TARGET_OS_CPP_BUILTINS
++#define TARGET_OS_CPP_BUILTINS()				\
++  do								\
++    {								\
++      GNU_USER_TARGET_OS_CPP_BUILTINS ();			\
++      builtin_define ("__uClinux__");				\
++    }								\
++  while (0)
++
++#undef SUBTARGET_CPP_SPEC
++#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
++
++#undef SIZE_TYPE
++#define SIZE_TYPE "unsigned int"
++
++#undef PTRDIFF_TYPE
++#define PTRDIFF_TYPE "int"
++
++#undef WCHAR_TYPE
++#define WCHAR_TYPE "long int"
++
++#undef WCHAR_TYPE_SIZE
++#define WCHAR_TYPE_SIZE 32
++
++#undef ASM_SPEC
++#define ASM_SPEC \
++ "%{mtext-section-literals:--text-section-literals} \
++  %{mno-text-section-literals:--no-text-section-literals} \
++  %{mtarget-align:--target-align} \
++  %{mno-target-align:--no-target-align} \
++  %{mlongcalls:--longcalls} \
++  %{mno-longcalls:--no-longcalls} \
++  %{mauto-litpools:--auto-litpools} \
++  %{mno-auto-litpools:--no-auto-litpools}"
++
++#undef LINK_SPEC
++#define LINK_SPEC "%{!no-elf2flt:%{!elf2flt*:-elf2flt}}"
++
++#undef LOCAL_LABEL_PREFIX
++#define LOCAL_LABEL_PREFIX	"."
++
++/* Always enable "-fpic" for Xtensa Linux.  */
++#define XTENSA_ALWAYS_PIC 1
++
++#undef TARGET_LIBC_HAS_FUNCTION
++#define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
++
++#undef DBX_REGISTER_NUMBER
++
+Index: b/gcc/config/xtensa/uclinux.opt
+===================================================================
+--- /dev/null
++++ b/gcc/config/xtensa/uclinux.opt
+@@ -0,0 +1,32 @@
++; Xtensa uClinux options.
++
++; Copyright (C) 2015 Free Software Foundation, Inc.
++;
++; This file is part of GCC.
++;
++; GCC is free software; you can redistribute it and/or modify it under
++; the terms of the GNU General Public License as published by the Free
++; Software Foundation; either version 3, or (at your option) any later
++; version.
++;
++; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++; WARRANTY; without even the implied warranty of MERCHANTABILITY or
++; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++; for more details.
++;
++; You should have received a copy of the GNU General Public License
++; along with GCC; see the file COPYING3.  If not see
++; <http://www.gnu.org/licenses/>.
++
++; See the GCC internals manual (options.texi) for a description of
++; this file's format.
++
++; Please try to keep this file in ASCII collating order.
++
++elf2flt
++Driver
++
++elf2flt=
++Driver JoinedOrMissing
++
++; This comment is to ensure we retain the blank line above.
+Index: b/libgcc/config.host
+===================================================================
+--- a/libgcc/config.host
++++ b/libgcc/config.host
+@@ -1213,6 +1213,11 @@
+ 	tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
+ 	md_unwind_header=xtensa/linux-unwind.h
+ 	;;
++xtensa*-*-uclinux*)
++	tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
++	md_unwind_header=xtensa/linux-unwind.h
++	extra_parts="$extra_parts crtbeginS.o crtbeginT.o crtendS.o"
++	;;
+ am33_2.0-*-linux*)
+ 	# Don't need crtbeginT.o from *-*-linux* default.
+ 	extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"

bsp/buildroot/package/gcc/4.9.4/880-nios2_legitimize_address.patch

@@ -0,0 +1,49 @@
+From b0ea54f3f995754881e0ea6651133aa7b58eeaa2 Mon Sep 17 00:00:00 2001
+From: cltang <cltang@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Tue, 22 Sep 2015 12:23:20 +0000
+Subject: [PATCH] nios2_legitimize_address 2015-09-22  Chung-Lin Tang 
+ <cltang@codesourcery.com>
+
+	Backport from mainline
+	2015-09-22  Chung-Lin Tang  <cltang@codesourcery.com>
+
+	* config/nios2/nios2.c (nios2_legitimize_address): When handling
+	'reg + reloc' cases, allow first operand to be non-REG, and use
+	force_reg() to enforce address pattern.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-5-branch@228013 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Fixes:
+http://autobuild.buildroot.net/results/901/90186d1fe134b804c0101554296b1235dc0ccbb0
+
+[backported to 4.9.3]
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ gcc/config/nios2/nios2.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/nios2/nios2.c b/gcc/config/nios2/nios2.c
+index 047b615..41dd6f9 100644
+--- a/gcc/config/nios2/nios2.c
++++ b/gcc/config/nios2/nios2.c
+@@ -1786,15 +1786,15 @@ nios2_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED,
+ 
+      Which will be output as '%tls_le(var+48)(r23)' in assembly.  */
+   if (GET_CODE (x) == PLUS
+-      && GET_CODE (XEXP (x, 0)) == REG
+       && GET_CODE (XEXP (x, 1)) == CONST)
+     {
+-      rtx unspec, offset, reg = XEXP (x, 0);
++      rtx unspec, offset;
+       split_const (XEXP (x, 1), &unspec, &offset);
+       if (GET_CODE (unspec) == UNSPEC
+ 	  && !nios2_large_offset_p (XINT (unspec, 1))
+ 	  && offset != const0_rtx)
+ 	{
++	  rtx reg = force_reg (Pmode, XEXP (x, 0));
+ 	  unspec = copy_rtx (unspec);
+ 	  XVECEXP (unspec, 0, 0)
+ 	    = plus_constant (Pmode, XVECEXP (unspec, 0, 0), INTVAL (offset));
+-- 
+2.5.0
+

bsp/buildroot/package/gcc/4.9.4/890-fix-m68k-compile.patch

@@ -0,0 +1,15 @@
+remove unused header, which breaks the toolchain building
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-4.9.3.orig/libgcc/config/m68k/linux-atomic.c gcc-4.9.3/libgcc/config/m68k/linux-atomic.c
+--- gcc-4.9.3.orig/libgcc/config/m68k/linux-atomic.c	2014-01-02 23:25:22.000000000 +0100
++++ gcc-4.9.3/libgcc/config/m68k/linux-atomic.c	2016-03-18 22:24:40.000000000 +0100
+@@ -33,7 +33,6 @@
+    using the kernel helper defined below.  There is no support for
+    64-bit operations yet.  */
+ 
+-#include <asm/unistd.h>
+ #include <stdbool.h>
+ 
+ #ifndef __NR_atomic_cmpxchg_32

bsp/buildroot/package/gcc/4.9.4/891-fix-m68k-uclinux.patch

@@ -0,0 +1,18 @@
+avoids internal compiler error while compiling linux-atomic.c
+See here:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53833
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-4.9.3.orig/libgcc/config.host gcc-4.9.3/libgcc/config.host
+--- gcc-4.9.3.orig/libgcc/config.host	2014-03-27 16:40:31.000000000 +0100
++++ gcc-4.9.3/libgcc/config.host	2016-04-05 16:20:53.422809885 +0200
+@@ -750,7 +750,7 @@
+ m68k*-*-openbsd*)
+ 	;;
+ m68k-*-uclinux*)	# Motorola m68k/ColdFire running uClinux with uClibc
+-	tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
++	tmake_file="$tmake_file m68k/t-floatlib"
+ 	md_unwind_header=m68k/linux-unwind.h
+ 	;;
+ m68k-*-linux*)			# Motorola m68k's running GNU/Linux

bsp/buildroot/package/gcc/4.9.4/900-musl-support.patch

@@ -60,7 +60,7 @@ Index: b/gcc/config.gcc
      *)
        tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
        ;;
-@@ -2322,6 +2325,10 @@
+@@ -2338,6 +2341,10 @@
  	    powerpc*-*-linux*paired*)
  		tm_file="${tm_file} rs6000/750cl.h" ;;
  	esac
@@ -308,7 +308,7 @@ Index: b/gcc/config/microblaze/linux.h
 ===================================================================
 --- a/gcc/config/microblaze/linux.h
 +++ b/gcc/config/microblaze/linux.h
-@@ -25,7 +25,23 @@
+@@ -28,7 +28,23 @@
  #undef TLS_NEEDS_GOT
  #define TLS_NEEDS_GOT 1
  
@@ -337,7 +337,7 @@ Index: b/gcc/config/rs6000/linux64.h
 ===================================================================
 --- a/gcc/config/rs6000/linux64.h
 +++ b/gcc/config/rs6000/linux64.h
-@@ -375,17 +375,23 @@
+@@ -371,17 +371,23 @@
  #endif
  #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
  #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
@@ -452,7 +452,7 @@ Index: b/gcc/configure
 ===================================================================
 --- a/gcc/configure
 +++ b/gcc/configure
-@@ -27449,6 +27453,9 @@
+@@ -27601,6 +27601,9 @@
        gcc_cv_target_dl_iterate_phdr=no
      fi
      ;;
@@ -466,7 +466,7 @@ Index: b/gcc/configure.ac
 ===================================================================
 --- a/gcc/configure.ac
 +++ b/gcc/configure.ac
-@@ -5108,6 +5112,9 @@
+@@ -5173,6 +5173,9 @@
        gcc_cv_target_dl_iterate_phdr=no
      fi
      ;;
@@ -588,7 +588,7 @@ Index: b/libstdc++-v3/configure.host
 ===================================================================
 --- a/libstdc++-v3/configure.host
 +++ b/libstdc++-v3/configure.host
-@@ -264,6 +264,13 @@
+@@ -266,6 +266,13 @@
      os_include_dir="os/bsd/freebsd"
      ;;
    gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
@@ -602,7 +602,7 @@ Index: b/libstdc++-v3/configure.host
      if [ "$uclibc" = "yes" ]; then
        os_include_dir="os/uclibc"
      elif [ "$bionic" = "yes" ]; then
-@@ -272,6 +279,9 @@
+@@ -274,6 +281,9 @@
        os_include_dir="os/gnu-linux"
      fi
      ;;
@@ -637,4 +637,4 @@ Index: b/gcc/config/mips/linux.h
 +#define MUSL_DYNAMIC_LINKER_E "%{EL:el}"
 +#endif
 +#undef MUSL_DYNAMIC_LINKER
-+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips" MUSL_DYNAMIC_LINKER_E ".so.1"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"

bsp/buildroot/package/gcc/4.9.4/901-microblaze-uclibc.patch

@@ -0,0 +1,21 @@
+Add dynamic linker support for uClibc
+
+Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
+
+diff -Nur gcc-4.9.3.orig/gcc/config/microblaze/linux.h gcc-4.9.3/gcc/config/microblaze/linux.h
+--- gcc-4.9.3.orig/gcc/config/microblaze/linux.h	2016-06-04 21:21:09.430646655 +0200
++++ gcc-4.9.3/gcc/config/microblaze/linux.h	2016-06-04 21:21:44.596003509 +0200
+@@ -36,10 +36,13 @@
+ 
+ #undef MUSL_DYNAMIC_LINKER
+ #define MUSL_DYNAMIC_LINKER "/lib/ld-musl-microblaze" MUSL_DYNAMIC_LINKER_E ".so.1"
++#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+ 
+ #if DEFAULT_LIBC == LIBC_MUSL
+ #define DYNAMIC_LINKER MUSL_DYNAMIC_LINKER
++#elif DEFAULT_LIBC == LIBC_UCLIBC
++#define DYNAMIC_LINKER UCLIBC_DYNAMIC_LINKER
+ #else
+ #define DYNAMIC_LINKER GLIBC_DYNAMIC_LINKER
+ #endif

bsp/buildroot/package/gcc/4.9.4/930-libgcc-disable-split-stack-nothreads.patch

@@ -0,0 +1,14 @@
+disable split-stack for non-thread builds
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-4.9.3.orig/libgcc/config/t-stack gcc-4.9.3/libgcc/config/t-stack
+--- gcc-4.9.3.orig/libgcc/config/t-stack	2010-10-01 21:31:49.000000000 +0200
++++ gcc-4.9.3/libgcc/config/t-stack	2016-03-07 01:34:32.000000000 +0100
+@@ -1,4 +1,6 @@
+ # Makefile fragment to provide generic support for -fsplit-stack.
+ # This should be used in config.host for any host which supports
+ # -fsplit-stack.
++ifeq ($(enable_threads),yes)
+ LIB2ADD_ST += $(srcdir)/generic-morestack.c $(srcdir)/generic-morestack-thread.c
++endif

bsp/buildroot/package/gcc/4.9.4/940-uclinux-enable-threads.patch

@@ -0,0 +1,20 @@
+Enable POSIX threads for uClinux targets
+Reported upstream:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+Index: b/gcc/config.gcc
+===================================================================
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -810,6 +810,9 @@
+ *-*-uclinux*)
+   extra_options="$extra_options gnu-user.opt"
+   use_gcc_stdint=wrap
++  case ${enable_threads} in
++    "" | yes | posix) thread_file='posix' ;;
++  esac
+   tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
+   ;;
+ *-*-rdos*)

bsp/buildroot/package/gcc/5.4.0/810-arm-softfloat-libgcc.patch

@@ -1,8 +1,8 @@
-Index: gcc-4.8.0/gcc/config/arm/linux-elf.h
+Index: b/gcc/config/arm/linux-elf.h
 ===================================================================
---- gcc-4.8.0.orig/gcc/config/arm/linux-elf.h	2013-01-10 21:38:27.000000000 +0100
-+++ gcc-4.8.0/gcc/config/arm/linux-elf.h	2013-03-23 17:40:00.000000000 +0100
-@@ -55,7 +55,7 @@
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -60,7 +60,7 @@
     %{shared:-lc} \
     %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
  
@@ -11,10 +11,10 @@ Index: gcc-4.8.0/gcc/config/arm/linux-elf.h
  
  #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
  
-Index: gcc-4.8.0/libgcc/config/arm/t-linux
+Index: b/libgcc/config/arm/t-linux
 ===================================================================
---- gcc-4.8.0.orig/libgcc/config/arm/t-linux	2012-03-22 16:14:46.000000000 +0100
-+++ gcc-4.8.0/libgcc/config/arm/t-linux	2013-03-23 17:40:54.000000000 +0100
+--- a/libgcc/config/arm/t-linux
++++ b/libgcc/config/arm/t-linux
 @@ -1,6 +1,11 @@
  LIB1ASMSRC = arm/lib1funcs.S
  LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \

bsp/buildroot/package/gcc/5.4.0/874-xtensa-add-uclinux-support.patch

@@ -0,0 +1,174 @@
+From 70c2cb98fb129b4766b5da0f945dc41fd568c77a Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Sat, 22 Aug 2015 08:44:26 +0300
+Subject: [PATCH] xtensa: add uclinux support
+
+2015-10-03  Max Filippov  <jcmvbkbc@gmail.com>
+gcc/
+	* config.gcc (xtensa*-*-uclinux*): New configuration.
+	* config/xtensa/uclinux.h: New file.
+	* config/xtensa/uclinux.opt: New file.
+
+libgcc/
+	* config.host (xtensa*-*-uclinux*): New configuration.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+Backported from: r228450
+
+ gcc/config.gcc                |  5 ++++
+ gcc/config/xtensa/uclinux.h   | 69 +++++++++++++++++++++++++++++++++++++++++++
+ gcc/config/xtensa/uclinux.opt | 32 ++++++++++++++++++++
+ libgcc/config.host            |  5 ++++
+ 4 files changed, 111 insertions(+)
+ create mode 100644 gcc/config/xtensa/uclinux.h
+ create mode 100644 gcc/config/xtensa/uclinux.opt
+
+diff --git a/gcc/config.gcc b/gcc/config.gcc
+index c52f5a8..56797bd 100644
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2995,6 +2995,11 @@ xtensa*-*-linux*)
+ 	tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h xtensa/linux.h"
+ 	tmake_file="${tmake_file} xtensa/t-xtensa"
+ 	;;
++xtensa*-*-uclinux*)
++	tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h xtensa/uclinux.h"
++	tmake_file="${tmake_file} xtensa/t-xtensa"
++	extra_options="${extra_options} xtensa/uclinux.opt"
++	;;
+ am33_2.0-*-linux*)
+ 	tm_file="mn10300/mn10300.h dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h mn10300/linux.h"
+ 	gas=yes gnu_ld=yes
+diff --git a/gcc/config/xtensa/uclinux.h b/gcc/config/xtensa/uclinux.h
+new file mode 100644
+index 0000000..4606020
+--- /dev/null
++++ b/gcc/config/xtensa/uclinux.h
+@@ -0,0 +1,69 @@
++/* Xtensa uClinux configuration.
++   Derived from the configuration for GCC for Intel i386 running Linux.
++   Copyright (C) 2001-2015 Free Software Foundation, Inc.
++
++This file is part of GCC.
++
++GCC is free software; you can redistribute it and/or modify it under
++the terms of the GNU General Public License as published by the Free
++Software Foundation; either version 3, or (at your option) any later
++version.
++
++GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++WARRANTY; without even the implied warranty of MERCHANTABILITY or
++FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++for more details.
++
++You should have received a copy of the GNU General Public License
++along with GCC; see the file COPYING3.  If not see
++<http://www.gnu.org/licenses/>.  */
++
++#undef TARGET_OS_CPP_BUILTINS
++#define TARGET_OS_CPP_BUILTINS()				\
++  do								\
++    {								\
++      GNU_USER_TARGET_OS_CPP_BUILTINS ();			\
++      builtin_define ("__uClinux__");				\
++    }								\
++  while (0)
++
++#undef SUBTARGET_CPP_SPEC
++#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
++
++#undef SIZE_TYPE
++#define SIZE_TYPE "unsigned int"
++
++#undef PTRDIFF_TYPE
++#define PTRDIFF_TYPE "int"
++
++#undef WCHAR_TYPE
++#define WCHAR_TYPE "long int"
++
++#undef WCHAR_TYPE_SIZE
++#define WCHAR_TYPE_SIZE 32
++
++#undef ASM_SPEC
++#define ASM_SPEC \
++ "%{mtext-section-literals:--text-section-literals} \
++  %{mno-text-section-literals:--no-text-section-literals} \
++  %{mtarget-align:--target-align} \
++  %{mno-target-align:--no-target-align} \
++  %{mlongcalls:--longcalls} \
++  %{mno-longcalls:--no-longcalls} \
++  %{mauto-litpools:--auto-litpools} \
++  %{mno-auto-litpools:--no-auto-litpools}"
++
++#undef LINK_SPEC
++#define LINK_SPEC "%{!no-elf2flt:%{!elf2flt*:-elf2flt}}"
++
++#undef LOCAL_LABEL_PREFIX
++#define LOCAL_LABEL_PREFIX	"."
++
++/* Always enable "-fpic" for Xtensa Linux.  */
++#define XTENSA_ALWAYS_PIC 1
++
++#undef TARGET_LIBC_HAS_FUNCTION
++#define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
++
++#undef DBX_REGISTER_NUMBER
++
+diff --git a/gcc/config/xtensa/uclinux.opt b/gcc/config/xtensa/uclinux.opt
+new file mode 100644
+index 0000000..95ef777
+--- /dev/null
++++ b/gcc/config/xtensa/uclinux.opt
+@@ -0,0 +1,32 @@
++; Xtensa uClinux options.
++
++; Copyright (C) 2015 Free Software Foundation, Inc.
++;
++; This file is part of GCC.
++;
++; GCC is free software; you can redistribute it and/or modify it under
++; the terms of the GNU General Public License as published by the Free
++; Software Foundation; either version 3, or (at your option) any later
++; version.
++;
++; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++; WARRANTY; without even the implied warranty of MERCHANTABILITY or
++; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++; for more details.
++;
++; You should have received a copy of the GNU General Public License
++; along with GCC; see the file COPYING3.  If not see
++; <http://www.gnu.org/licenses/>.
++
++; See the GCC internals manual (options.texi) for a description of
++; this file's format.
++
++; Please try to keep this file in ASCII collating order.
++
++elf2flt
++Driver
++
++elf2flt=
++Driver JoinedOrMissing
++
++; This comment is to ensure we retain the blank line above.
+diff --git a/libgcc/config.host b/libgcc/config.host
+index 2c64756..2ee92c1 100644
+--- a/libgcc/config.host
++++ b/libgcc/config.host
+@@ -1295,6 +1295,11 @@ xtensa*-*-linux*)
+ 	tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
+ 	md_unwind_header=xtensa/linux-unwind.h
+ 	;;
++xtensa*-*-uclinux*)
++	tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
++	md_unwind_header=xtensa/linux-unwind.h
++	extra_parts="$extra_parts crtbeginS.o crtbeginT.o crtendS.o"
++	;;
+ am33_2.0-*-linux*)
+ 	# Don't need crtbeginT.o from *-*-linux* default.
+ 	extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
+-- 
+1.8.1.4
+

bsp/buildroot/package/gcc/5.4.0/890-fix-m68k-compile.patch

@@ -0,0 +1,15 @@
+remove unused header, which breaks the toolchain building
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config/m68k/linux-atomic.c gcc-5.3.0/libgcc/config/m68k/linux-atomic.c
+--- gcc-5.3.0.orig/libgcc/config/m68k/linux-atomic.c	2015-01-05 13:33:28.000000000 +0100
++++ gcc-5.3.0/libgcc/config/m68k/linux-atomic.c	2016-03-19 09:25:07.000000000 +0100
+@@ -33,7 +33,6 @@
+    using the kernel helper defined below.  There is no support for
+    64-bit operations yet.  */
+ 
+-#include <asm/unistd.h>
+ #include <stdbool.h>
+ 
+ #ifndef __NR_atomic_cmpxchg_32

bsp/buildroot/package/gcc/5.4.0/891-fix-m68k-uclinux.patch

@@ -0,0 +1,18 @@
+avoids internal compiler error while compiling linux-atomic.c
+See here:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53833
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config.host gcc-5.3.0/libgcc/config.host
+--- gcc-5.3.0.orig/libgcc/config.host	2015-10-01 14:01:18.000000000 +0200
++++ gcc-5.3.0/libgcc/config.host	2016-04-26 21:30:25.353691745 +0200
+@@ -794,7 +794,7 @@
+ m68k*-*-openbsd*)
+ 	;;
+ m68k-*-uclinux*)	# Motorola m68k/ColdFire running uClinux with uClibc
+-	tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
++	tmake_file="$tmake_file m68k/t-floatlib"
+ 	md_unwind_header=m68k/linux-unwind.h
+ 	;;
+ m68k-*-linux*)			# Motorola m68k's running GNU/Linux

bsp/buildroot/package/gcc/5.4.0/892-microblaze-uclibc.patch

@@ -0,0 +1,24 @@
+Add dynamic linker support for uClibc
+
+Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
+
+diff -Nur gcc-5.3.0.orig/gcc/config/microblaze/linux.h gcc-5.3.0/gcc/config/microblaze/linux.h
+--- gcc-5.3.0.orig/gcc/config/microblaze/linux.h	2015-05-28 16:08:19.000000000 +0200
++++ gcc-5.3.0/gcc/config/microblaze/linux.h	2016-05-13 09:21:01.579262885 +0200
+@@ -28,7 +28,15 @@
+ #undef TLS_NEEDS_GOT
+ #define TLS_NEEDS_GOT 1
+ 
+-#define DYNAMIC_LINKER "/lib/ld.so.1"
++#define GLIBC_DYNAMIC_LINKER	"/lib/ld.so.1"
++#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
++
++#if DEFAULT_LIBC == LIBC_UCLIBC
++#define DYNAMIC_LINKER UCLIBC_DYNAMIC_LINKER
++#else
++#define DYNAMIC_LINKER GLIBC_DYNAMIC_LINKER
++#endif
++
+ #undef  SUBTARGET_EXTRA_SPECS
+ #define SUBTARGET_EXTRA_SPECS \
+   { "dynamic_linker", DYNAMIC_LINKER }

bsp/buildroot/package/gcc/5.4.0/930-libgcc-disable-split-stack-nothreads.patch

@@ -0,0 +1,14 @@
+disable split-stack for non-thread builds
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config/t-stack gcc-5.3.0/libgcc/config/t-stack
+--- gcc-5.3.0.orig/libgcc/config/t-stack	2010-10-01 21:31:49.000000000 +0200
++++ gcc-5.3.0/libgcc/config/t-stack	2016-03-07 03:25:32.000000000 +0100
+@@ -1,4 +1,6 @@
+ # Makefile fragment to provide generic support for -fsplit-stack.
+ # This should be used in config.host for any host which supports
+ # -fsplit-stack.
++ifeq ($(enable_threads),yes)
+ LIB2ADD_ST += $(srcdir)/generic-morestack.c $(srcdir)/generic-morestack-thread.c
++endif

bsp/buildroot/package/gcc/5.4.0/940-uclinux-enable-threads.patch

@@ -0,0 +1,19 @@
+Enable POSIX threads for uClinux targets
+Reported upstream:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.4.0.orig/gcc/config.gcc gcc-5.4.0/gcc/config.gcc
+--- gcc-5.4.0.orig/gcc/config.gcc	2015-09-10 16:17:53.000000000 +0200
++++ gcc-5.4.0/gcc/config.gcc	2016-07-01 21:26:02.772958441 +0200
+@@ -808,6 +808,9 @@
+ *-*-uclinux*)
+   extra_options="$extra_options gnu-user.opt"
+   use_gcc_stdint=wrap
++  case ${enable_threads} in
++    "" | yes | posix) thread_file='posix' ;;
++  esac
+   tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
+   ;;
+ *-*-rdos*)

bsp/buildroot/package/gcc/6.1.0/100-uclibc-conf.patch

@@ -1,6 +1,8 @@
---- gcc/gcc/config/--- gcc/contrib/regression/objs-gcc.sh
-+++ gcc/contrib/regression/objs-gcc.sh
-@@ -105,6 +105,10 @@
+Index: b/contrib/regression/objs-gcc.sh
+===================================================================
+--- a/contrib/regression/objs-gcc.sh
++++ b/contrib/regression/objs-gcc.sh
+@@ -106,6 +106,10 @@
   then
    make all-gdb all-dejagnu all-ld || exit 1
    make install-gdb install-dejagnu install-ld || exit 1

bsp/buildroot/package/gcc/6.1.0/301-missing-execinfo_h.patch

@@ -1,7 +1,9 @@
---- gcc-4.0.0/boehm-gc/include/gc.h-orig	2005-04-28 22:28:57.000000000 -0500
-+++ gcc-4.0.0/boehm-gc/include/gc.h	2005-04-28 22:30:38.000000000 -0500
-@@ -500,7 +500,7 @@
- #ifdef __linux__
+Index: b/boehm-gc/include/gc.h
+===================================================================
+--- a/boehm-gc/include/gc.h
++++ b/boehm-gc/include/gc.h
+@@ -503,7 +503,7 @@
+ #if defined(__linux__) || defined(__GLIBC__)
  # include <features.h>
  # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
 -     && !defined(__ia64__)

bsp/buildroot/package/gcc/6.1.0/810-arm-softfloat-libgcc.patch

@@ -0,0 +1,30 @@
+Index: b/gcc/config/arm/linux-elf.h
+===================================================================
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -60,7 +60,7 @@
+    %{shared:-lc} \
+    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+ 
+-#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
++#define LIBGCC_SPEC "-lgcc"
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
+Index: b/libgcc/config/arm/t-linux
+===================================================================
+--- a/libgcc/config/arm/t-linux
++++ b/libgcc/config/arm/t-linux
+@@ -1,6 +1,11 @@
+ LIB1ASMSRC = arm/lib1funcs.S
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
+-	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3
++	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
++	_arm_addsubdf3 _arm_addsubsf3 \
++	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
++	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
++	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
++	_arm_fixsfsi _arm_fixunssfsi
+ 
+ # Just for these, we omit the frame pointer since it makes such a big
+ # difference.

bsp/buildroot/package/gcc/6.1.0/830-arm_unbreak_armv4t.patch

@@ -1,9 +1,10 @@
 http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
 
-diff -Nura gcc-4.5.1.orig/gcc/config/arm/linux-eabi.h gcc-4.5.1/gcc/config/arm/linux-eabi.h
---- gcc-4.5.1.orig/gcc/config/arm/linux-eabi.h	2009-10-30 17:03:09.000000000 -0300
-+++ gcc-4.5.1/gcc/config/arm/linux-eabi.h	2010-11-02 15:38:25.792208500 -0300
-@@ -44,7 +44,7 @@
+Index: b/gcc/config/arm/linux-eabi.h
+===================================================================
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -45,7 +45,7 @@
     The ARM10TDMI core is the default for armv5t, so set
     SUBTARGET_CPU_DEFAULT to achieve this.  */
  #undef  SUBTARGET_CPU_DEFAULT

bsp/buildroot/package/gcc/6.1.0/860-cilk-wchar.patch

@@ -0,0 +1,56 @@
+[PATCH] cilk: fix build without wchar
+
+When building against uClibc with wchar support disabled, WCHAR_MIN and
+WCHAR_MAX are not defined leading to compilation errors.
+
+Fix it by only including the wchar code if available.
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libcilkrts/include/cilk/reducer_min_max.h |    8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+Index: b/libcilkrts/include/cilk/reducer_min_max.h
+===================================================================
+--- a/libcilkrts/include/cilk/reducer_min_max.h
++++ b/libcilkrts/include/cilk/reducer_min_max.h
+@@ -3154,7 +3154,9 @@
+ CILK_C_REDUCER_MAX_INSTANCE(char,               char,       CHAR_MIN)
+ CILK_C_REDUCER_MAX_INSTANCE(unsigned char,      uchar,      0)
+ CILK_C_REDUCER_MAX_INSTANCE(signed char,        schar,      SCHAR_MIN)
++#ifdef WCHAR_MIN
+ CILK_C_REDUCER_MAX_INSTANCE(wchar_t,            wchar_t,    WCHAR_MIN)
++#endif
+ CILK_C_REDUCER_MAX_INSTANCE(short,              short,      SHRT_MIN)
+ CILK_C_REDUCER_MAX_INSTANCE(unsigned short,     ushort,     0)
+ CILK_C_REDUCER_MAX_INSTANCE(int,                int,        INT_MIN)
+@@ -3306,7 +3308,9 @@
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(char,               char,       CHAR_MIN)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(unsigned char,      uchar,      0)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(signed char,        schar,      SCHAR_MIN)
++#ifdef WCHAR_MIN
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(wchar_t,            wchar_t,    WCHAR_MIN)
++#endif
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(short,              short,      SHRT_MIN)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(unsigned short,     ushort,     0)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(int,                int,        INT_MIN)
+@@ -3432,7 +3436,9 @@
+ CILK_C_REDUCER_MIN_INSTANCE(char,               char,       CHAR_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(unsigned char,      uchar,      CHAR_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(signed char,        schar,      SCHAR_MAX)
++#ifdef WCHAR_MAX
+ CILK_C_REDUCER_MIN_INSTANCE(wchar_t,            wchar_t,    WCHAR_MAX)
++#endif
+ CILK_C_REDUCER_MIN_INSTANCE(short,              short,      SHRT_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(unsigned short,     ushort,     USHRT_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(int,                int,        INT_MAX)
+@@ -3584,7 +3590,9 @@
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(char,               char,       CHAR_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(unsigned char,      uchar,      CHAR_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(signed char,        schar,      SCHAR_MAX)
++#ifdef WCHAR_MAX
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(wchar_t,            wchar_t,    WCHAR_MAX)
++#endif
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(short,              short,      SHRT_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(unsigned short,     ushort,     USHRT_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(int,                int,        INT_MAX)

bsp/buildroot/package/gcc/6.1.0/890-fix-m68k-compile.patch

@@ -0,0 +1,15 @@
+remove unused header, which breaks the toolchain building
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config/m68k/linux-atomic.c gcc-5.3.0/libgcc/config/m68k/linux-atomic.c
+--- gcc-5.3.0.orig/libgcc/config/m68k/linux-atomic.c	2015-01-05 13:33:28.000000000 +0100
++++ gcc-5.3.0/libgcc/config/m68k/linux-atomic.c	2016-03-19 09:25:07.000000000 +0100
+@@ -33,7 +33,6 @@
+    using the kernel helper defined below.  There is no support for
+    64-bit operations yet.  */
+ 
+-#include <asm/unistd.h>
+ #include <stdbool.h>
+ 
+ #ifndef __NR_atomic_cmpxchg_32

bsp/buildroot/package/gcc/6.1.0/891-fix-m68k-uclinux.patch

@@ -0,0 +1,18 @@
+avoids internal compiler error while compiling linux-atomic.c
+See here:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53833
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+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	2016-04-29 09:18:40.377989160 +0200
+@@ -812,7 +812,7 @@
+ m68k*-*-openbsd*)
+ 	;;
+ m68k-*-uclinux*)	# Motorola m68k/ColdFire running uClinux with uClibc
+-	tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
++	tmake_file="$tmake_file m68k/t-floatlib"
+ 	md_unwind_header=m68k/linux-unwind.h
+ 	;;
+ m68k-*-linux*)			# Motorola m68k's running GNU/Linux

bsp/buildroot/package/gcc/6.1.0/892-libgcc-mkmap-symver-support-skip_underscore.patch

@@ -0,0 +1,74 @@
+From ae9c3e354440c4a0f105a9eabfb2f77be085ebc1 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Thu, 18 Aug 2016 17:59:16 +0200
+Subject: [PATCH] libgcc/mkmap-symver: support skip_underscore
+
+Some platforms, such as Blackfin, have a special prefix for assembly
+symbols as opposed to C symbols. For this reason, a function named
+"foo()" in C will in fact be visible as a symbol called "_foo" in the
+ELF binary.
+
+The current linker version script logic in libgcc doesn't take into
+account this situation properly. The Blackfin specific
+libgcc/config/bfin/libgcc-glibc.ver has an additional "_" in front of
+every symbol so that it matches the output of "nm" (which gets parsed to
+produce the final linker version script). But due to this additional
+"_", ld no longer matches with the symbols since "ld" does the matching
+with the original symbol name, not the one prefixed with "_".
+
+Due to this, none of the symbols in libgcc/config/bfin/libgcc-glibc.ver
+are actually matched with symbols in libgcc. This causes all libgcc
+symbols to be left as "LOCAL", which causes lots of "undefined
+reference" whenever some C or C++ code that calls a function of libgcc
+is compiled.
+
+To address this, this commit introduces a "skip_underscore" variable to
+the mkmap-symver script. It tells mkmap-symver to ignore the leading
+underscore from the "nm" output.
+
+Note that this new argument is different from the existing
+"leading_underscore" argument, which *adds* an additional underscore to
+the generated linker version script.
+
+Having this functionality paves the way to using the generic linker
+version information for Blackfin, instead of using a custom one.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ libgcc/ChangeLog        | 5 +++++
+ libgcc/mkmap-symver.awk | 6 +++++-
+ 2 files changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
+index 6559564..129e43f 100644
+--- a/libgcc/ChangeLog
++++ b/libgcc/ChangeLog
+@@ -1,3 +1,8 @@
++2016-08-19  Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
++
++	PR gcc/74748
++	* libgcc/mkmap-symver.awk: add support for skip_underscore
++
+ 2016-04-27  Release Manager
+ 
+ 	* GCC 6.1.0 released.
+diff --git a/libgcc/mkmap-symver.awk b/libgcc/mkmap-symver.awk
+index 266832a..30bb179 100644
+--- a/libgcc/mkmap-symver.awk
++++ b/libgcc/mkmap-symver.awk
+@@ -47,7 +47,11 @@ state == "nm" && ($1 == "U" || $2 == "U") {
+ 
+ state == "nm" && NF == 3 {
+   split ($3, s, "@")
+-  def[s[1]] = 1;
++  if (skip_underscore)
++      symname = substr(s[1], 2);
++  else
++      symname = s[1];
++  def[symname] = 1;
+   sawsymbol = 1;
+   next;
+ }
+-- 
+2.7.4
+

bsp/buildroot/package/gcc/6.1.0/894-libgcc-fix-DWARF-compilation-with-FDPIC-targets.patch

@@ -0,0 +1,73 @@
+From 9d9f97ca5d1ceba66677bf406c9b31027dc1f22e Mon Sep 17 00:00:00 2001
+From: Waldemar Brodkorb <wbx@openadk.org>
+Date: Fri, 19 Aug 2016 13:54:46 +0200
+Subject: [PATCH] libgcc: fix DWARF compilation with FDPIC targets
+
+The build of unwind-dw2-fde-dip.c currently fails for FDPIC targets with
+the following error:
+
+libgcc/unwind-dw2-fde-dip.c:167:31: error: storage size of 'load_base' isn't known
+   struct elf32_fdpic_loadaddr load_base;
+
+This patch addresses that by defining load_base with the appropriate
+type on FDPIC targets. It has been tested on FRV and Blackfin.
+
+Fixes PR gcc/68468.
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ libgcc/ChangeLog            | 5 +++++
+ libgcc/unwind-dw2-fde-dip.c | 8 ++++++--
+ 2 files changed, 11 insertions(+), 2 deletions(-)
+
+diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
+index 36c0194..2e78d20 100644
+--- a/libgcc/ChangeLog
++++ b/libgcc/ChangeLog
+@@ -1,3 +1,8 @@
++2016-08-19  Waldemar Brodkorb <wbx@openadk.org>
++
++	PR gcc/68468
++	* libgcc/unwind-dw2-fde-dip.c: fix build on FDPIC targets.
++
+ 2016-08-19  Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ 
+ 	PR gcc/74748
+diff --git a/libgcc/unwind-dw2-fde-dip.c b/libgcc/unwind-dw2-fde-dip.c
+index f7a1c3f..801bce8 100644
+--- a/libgcc/unwind-dw2-fde-dip.c
++++ b/libgcc/unwind-dw2-fde-dip.c
+@@ -124,7 +124,11 @@ static struct frame_hdr_cache_element
+ {
+   _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 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
+   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 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
+ 	    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?
+-- 
+2.7.4
+

bsp/buildroot/package/gcc/6.1.0/940-uclinux-enable-threads.patch

@@ -0,0 +1,19 @@
+Enable POSIX threads for uClinux targets
+Reported upstream:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-6.1.0.orig/gcc/config.gcc gcc-6.1.0/gcc/config.gcc
+--- gcc-6.1.0.orig/gcc/config.gcc	2016-04-11 12:14:59.000000000 +0200
++++ gcc-6.1.0/gcc/config.gcc	2016-07-02 20:04:25.732169982 +0200
+@@ -833,6 +833,9 @@
+ *-*-uclinux*)
+   extra_options="$extra_options gnu-user.opt"
+   use_gcc_stdint=wrap
++  case ${enable_threads} in
++    "" | yes | posix) thread_file='posix' ;;
++  esac
+   tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
+   ;;
+ *-*-rdos*)

bsp/buildroot/package/gcc/Config.in.host

@@ -13,38 +13,14 @@ choice
 	help
 	  Select the version of gcc you wish to use.
 
-	config BR2_GCC_VERSION_4_5_X
-		bool "gcc 4.5.x"
-		depends on BR2_DEPRECATED_SINCE_2015_05
-		# Broken or unsupported architectures
-		depends on !BR2_microblaze && !BR2_aarch64 && !BR2_arc \
-			&& !BR2_powerpc64le && !BR2_nios2
-		# Broken or unsupported ARM cores
-		depends on !BR2_cortex_a7 && !BR2_cortex_a12 && \
-			!BR2_cortex_a15 && !BR2_fa526 && !BR2_pj4
-		# Broken or unsupported PPC cores
-		depends on !BR2_powerpc_e5500 && !BR2_powerpc_e6500 && \
-			!BR2_powerpc_power8
-		# SPARC -mcpu=leon3 appeared in gcc 4.8.x
-		depends on !BR2_sparc_leon3
-		# Broken or unsupported X86 cores
-		depends on !BR2_x86_corei7 && !BR2_x86_jaguar && !BR2_x86_steamroller
-		# ARM EABIhf support appeared in gcc 4.6
-		depends on !BR2_ARM_EABIHF
-		# Unsupported for MIPS R6
-		depends on !BR2_mips_32r6 && !BR2_mips_64r6
-		# musl patches only for gcc 4.7+
-		depends on !BR2_TOOLCHAIN_BUILDROOT_MUSL
-		select BR2_GCC_NEEDS_MPC
-		select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
-
 	config BR2_GCC_VERSION_4_7_X
 		bool "gcc 4.7.x"
+		depends on BR2_DEPRECATED_SINCE_2016_05
 		# Broken or unsupported architectures
 		depends on !BR2_microblaze && !BR2_aarch64 && !BR2_arc \
-			&& !BR2_powerpc64le && !BR2_nios2
+			&& !BR2_powerpc64le && !BR2_nios2 && !BR2_bfin
 		# Broken or unsupported ARM cores
-		depends on !BR2_cortex_a12 && !BR2_pj4
+		depends on !BR2_cortex_a12 && !BR2_pj4 && !BR2_cortex_a17
 		# Broken or unsupported PPC cores
 		depends on !BR2_powerpc_e5500 && !BR2_powerpc_e6500 && \
 			!BR2_powerpc_power8
@@ -61,9 +37,9 @@ choice
 		bool "gcc 4.8.x"
 		# Broken or unsupported architectures
 		depends on !BR2_microblaze && !BR2_arc \
-			&& !BR2_powerpc64le && !BR2_nios2
+			&& !BR2_powerpc64le && !BR2_nios2 && !BR2_bfin
 		# Broken or unsupported ARM cores
-		depends on !BR2_cortex_a12
+		depends on !BR2_cortex_a12 && !BR2_cortex_a17
 		# Broken or unsupported PPC cores
 		depends on !BR2_powerpc_power8
 		# gcc-4.8.x + binutils-2.25 is broken for MIPS
@@ -85,7 +61,9 @@ choice
 	config BR2_GCC_VERSION_4_9_X
 		bool "gcc 4.9.x"
 		# Broken or unsupported architectures
-		depends on !BR2_arc
+		depends on !BR2_arc && !BR2_bfin
+		# Broken or unsupported ARM cores
+		depends on !BR2_cortex_a17
 		# Unsupported for MIPS R6
 		depends on !BR2_mips_32r6 && !BR2_mips_64r6
 		# PR60102 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60102
@@ -96,25 +74,40 @@ choice
 	config BR2_GCC_VERSION_5_X
 		bool "gcc 5.x"
 		# Broken or unsupported architectures
-		depends on !BR2_arc
+		depends on !BR2_arc && !BR2_bfin
 		select BR2_GCC_NEEDS_MPC
 		select BR2_GCC_SUPPORTS_GRAPHITE
 		select BR2_TOOLCHAIN_GCC_AT_LEAST_5
 
+	config BR2_GCC_VERSION_6_X
+		bool "gcc 6.x"
+		# Broken or unsupported architectures
+		depends on !BR2_arc
+		select BR2_GCC_NEEDS_MPC
+		select BR2_GCC_SUPPORTS_GRAPHITE
+		select BR2_TOOLCHAIN_GCC_AT_LEAST_6
+
 endchoice
 
+# Indicates if GCC for architecture supports --with-{arch,cpu,..}  to
+# set default CFLAGS, otherwise values will be used by toolchain
+# wrapper.
+config BR2_GCC_ARCH_HAS_CONFIGURABLE_DEFAULTS
+	bool
+	default y if !BR2_bfin
+
 config BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE
 	bool
 	default y
 
 config BR2_GCC_VERSION
 	string
-	default "4.5.4"     if BR2_GCC_VERSION_4_5_X
 	default "4.7.4"     if BR2_GCC_VERSION_4_7_X
 	default "4.8.5"     if BR2_GCC_VERSION_4_8_X
-	default "4.9.3"     if BR2_GCC_VERSION_4_9_X
-	default "5.3.0"     if BR2_GCC_VERSION_5_X
-	default "arc-2015.12" if BR2_GCC_VERSION_4_8_ARC
+	default "4.9.4"     if BR2_GCC_VERSION_4_9_X
+	default "5.4.0"     if BR2_GCC_VERSION_5_X
+	default "6.1.0" if BR2_GCC_VERSION_6_X
+	default "arc-2016.09-eng010" if BR2_GCC_VERSION_4_8_ARC
 
 config BR2_EXTRA_GCC_CONFIG_OPTIONS
 	string "Additional gcc options"
@@ -132,8 +125,16 @@ config BR2_TOOLCHAIN_BUILDROOT_CXX
 	  C++ language and you want C++ libraries to be installed on
 	  your target system.
 
+comment "Fortran support needs a toolchain w/ wchar"
+	depends on BR2_TOOLCHAIN_HAS_LIBQUADMATH
+	depends on !BR2_USE_WCHAR # libquadmath
+
 config BR2_TOOLCHAIN_BUILDROOT_FORTRAN
 	bool "Enable Fortran support"
+	# on architecture building libquadmath, wchar is required
+	depends on !BR2_TOOLCHAIN_HAS_LIBQUADMATH || \
+		(BR2_TOOLCHAIN_HAS_LIBQUADMATH && BR2_USE_WCHAR)
+	select BR2_TOOLCHAIN_HAS_FORTRAN
 	help
 	  Enable this option if you want your toolchain to support the
 	  Fortran language and you want Fortran libraries to be
@@ -142,7 +143,7 @@ config BR2_TOOLCHAIN_BUILDROOT_FORTRAN
 config BR2_GCC_ENABLE_TLS
 	bool "Enable compiler tls support" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
 	default y
-	depends on BR2_PTHREADS_NATIVE || BR2_TOOLCHAIN_BUILDROOT_EGLIBC || BR2_TOOLCHAIN_BUILDROOT_GLIBC
+	depends on BR2_PTHREADS_NATIVE || BR2_TOOLCHAIN_BUILDROOT_GLIBC
 	help
 	  Enable the compiler to generate code for accessing
 	  thread local storage variables
@@ -165,8 +166,7 @@ config BR2_GCC_ENABLE_LIBMUDFLAP
 	# There are architectures, or specific configurations for
 	# which mudflap is not supported.
 	depends on !BR2_ARM_INSTRUCTIONS_THUMB && !BR2_powerpc_SPE
-	depends on !BR2_GCC_VERSION_4_9_X
-	depends on !BR2_GCC_VERSION_5_X
+	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	help
 	  libmudflap is a gcc library used for the mudflap pointer
 	  debugging functionality. It is only needed if you intend to

bsp/buildroot/package/gcc/arc-2015.12/851-PR-other-56780.patch

@@ -1,244 +0,0 @@
-From afe990251bd9b3a063f03da31a3b8d139d033bc3 Mon Sep 17 00:00:00 2001
-From: ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>
-Date: Sat, 1 Jun 2013 00:20:49 +0000
-Subject: [PATCH] PR other/56780
-
-* libiberty/configure.ac: Move test for --enable-install-libiberty
-outside of the 'with_target_subdir' test so that it actually gets
-run.  Add output messages to show the test result.
-* libiberty/configure: Regenerate.
-* libiberty/Makefile.in (install_to_libdir): Place the
-installation of the libiberty library in the same guard as that
-used for the headers to prevent it being installed unless
-requested via --enable-install-libiberty.
-
-git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@199570 138bc75d-0d04-0410-961f-82ee72b054a4
-
-libiberty: fix --enable-install-libiberty flag [PR 56780]
-
-Commit 199570 fixed the --disable-install-libiberty behavior, but it also
-added a bug where the enable path never works because the initial clear
-of target_header_dir wasn't deleted.  So we end up initializing properly
-at the top only to reset it at the end all the time.
-
-git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206367 138bc75d-0d04-0410-961f-82ee72b054a4
-
-[Romain
-  squash the two upstream commits
-  Remove the ChangeLog]
-Signed-off-by: Romain Naour <romain.naour@openwide.fr>
----
- libiberty/Makefile.in  | 24 ++++++++++-----------
- libiberty/configure    | 57 +++++++++++++++++++++++++++-----------------------
- libiberty/configure.ac | 47 ++++++++++++++++++++++-------------------
- 3 files changed, 68 insertions(+), 60 deletions(-)
-
-diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in
-index f6a3ebd..75ff82d 100644
---- a/libiberty/Makefile.in
-+++ b/libiberty/Makefile.in
-@@ -355,19 +355,19 @@ install-strip: install
- # since it will be passed the multilib flags.
- MULTIOSDIR = `$(CC) $(CFLAGS) -print-multi-os-directory`
- install_to_libdir: all
--	${mkinstalldirs} $(DESTDIR)$(libdir)/$(MULTIOSDIR)
--	$(INSTALL_DATA) $(TARGETLIB) $(DESTDIR)$(libdir)/$(MULTIOSDIR)/$(TARGETLIB)n
--	( cd $(DESTDIR)$(libdir)/$(MULTIOSDIR) ; chmod 644 $(TARGETLIB)n ;$(RANLIB) $(TARGETLIB)n )
--	mv -f $(DESTDIR)$(libdir)/$(MULTIOSDIR)/$(TARGETLIB)n $(DESTDIR)$(libdir)/$(MULTIOSDIR)/$(TARGETLIB)
- 	if test -n "${target_header_dir}"; then \
--	  case "${target_header_dir}" in \
--	    /*)    thd=${target_header_dir};; \
--	    *)     thd=${includedir}/${target_header_dir};; \
--	  esac; \
--	  ${mkinstalldirs} $(DESTDIR)$${thd}; \
--	  for h in ${INSTALLED_HEADERS}; do \
--	    ${INSTALL_DATA} $$h $(DESTDIR)$${thd}; \
--	  done; \
-+		${mkinstalldirs} $(DESTDIR)$(libdir)/$(MULTIOSDIR); \
-+		$(INSTALL_DATA) $(TARGETLIB) $(DESTDIR)$(libdir)/$(MULTIOSDIR)/$(TARGETLIB)n; \
-+		( cd $(DESTDIR)$(libdir)/$(MULTIOSDIR) ; chmod 644 $(TARGETLIB)n ;$(RANLIB) $(TARGETLIB)n ); \
-+		mv -f $(DESTDIR)$(libdir)/$(MULTIOSDIR)/$(TARGETLIB)n $(DESTDIR)$(libdir)/$(MULTIOSDIR)/$(TARGETLIB); \
-+		case "${target_header_dir}" in \
-+		  /*)    thd=${target_header_dir};; \
-+		  *)     thd=${includedir}/${target_header_dir};; \
-+		esac; \
-+		${mkinstalldirs} $(DESTDIR)$${thd}; \
-+		for h in ${INSTALLED_HEADERS}; do \
-+		  ${INSTALL_DATA} $$h $(DESTDIR)$${thd}; \
-+		done; \
- 	fi
- 	@$(MULTIDO) $(FLAGS_TO_PASS) multi-do DO=install
- 
-diff --git a/libiberty/configure b/libiberty/configure
-index 5367027..4feb95a 100755
---- a/libiberty/configure
-+++ b/libiberty/configure
-@@ -675,8 +675,8 @@ with_cross_host
- with_newlib
- enable_maintainer_mode
- enable_multilib
--enable_largefile
- enable_install_libiberty
-+enable_largefile
- '
-       ac_precious_vars='build_alias
- host_alias
-@@ -1303,8 +1303,8 @@ Optional Features:
-                           enable make rules and dependencies not useful
-                           (and sometimes confusing) to the casual installer
-   --enable-multilib       build many library versions (default)
-+  --enable-install-libiberty       Install headers and library for end users
-   --disable-largefile     omit support for large files
--  --enable-install-libiberty       Install headers for end users
- 
- Optional Packages:
-   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
-@@ -2784,6 +2784,35 @@ if test $cross_compiling = no && test $multilib = yes \
-    cross_compiling=maybe
- fi
- 
-+# We may wish to install the target headers somewhere.
-+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to install libiberty headers and static library" >&5
-+$as_echo_n "checking whether to install libiberty headers and static library... " >&6; }
-+
-+# Check whether --enable-install-libiberty was given.
-+if test "${enable_install_libiberty+set}" = set; then :
-+  enableval=$enable_install_libiberty; enable_install_libiberty=$enableval
-+else
-+  enable_install_libiberty=no
-+fi
-+
-+# Option parsed, now set things appropriately.
-+case x"$enable_install_libiberty" in
-+  xyes|x)
-+    target_header_dir=libiberty
-+    ;;
-+  xno)
-+    target_header_dir=
-+    ;;
-+  *)
-+    # This could be sanity-checked in various ways...
-+    target_header_dir="${enable_install_libiberty}"
-+    ;;
-+esac
-+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_install_libiberty" >&5
-+$as_echo "$enable_install_libiberty" >&6; }
-+{ $as_echo "$as_me:${as_lineno-$LINENO}: target_header_dir = $target_header_dir" >&5
-+$as_echo "$as_me: target_header_dir = $target_header_dir" >&6;}
-+
- 
- ac_ext=c
- ac_cpp='$CPP $CPPFLAGS'
-@@ -5476,7 +5505,6 @@ fi
- 
- setobjs=
- CHECK=
--target_header_dir=
- if test -n "${with_target_subdir}"; then
- 
-   # We are being configured as a target library.  AC_REPLACE_FUNCS
-@@ -5759,29 +5787,6 @@ _ACEOF
- 
-   esac
- 
--  # We may wish to install the target headers somewhere.
--  # Check whether --enable-install-libiberty was given.
--if test "${enable_install_libiberty+set}" = set; then :
--  enableval=$enable_install_libiberty; enable_install_libiberty=$enableval
--else
--  enable_install_libiberty=no
--fi
--
--  # Option parsed, now set things appropriately.
--  case x"$enable_install_libiberty" in
--    xyes|x)
--      target_header_dir=libiberty
--      ;;
--    xno)
--      target_header_dir=
--      ;;
--    *)
--      # This could be sanity-checked in various ways...
--      target_header_dir="${enable_install_libiberty}"
--      ;;
--  esac
--
--
- else
- 
-    # Not a target library, so we set things up to run the test suite.
-diff --git a/libiberty/configure.ac b/libiberty/configure.ac
-index c763894..f17e6b6 100644
---- a/libiberty/configure.ac
-+++ b/libiberty/configure.ac
-@@ -128,6 +128,31 @@ if test $cross_compiling = no && test $multilib = yes \
-    cross_compiling=maybe
- fi
- 
-+# We may wish to install the target headers somewhere.
-+AC_MSG_CHECKING([whether to install libiberty headers and static library])
-+dnl install-libiberty is disabled by default
-+
-+AC_ARG_ENABLE(install-libiberty,
-+[  --enable-install-libiberty       Install headers and library for end users],
-+enable_install_libiberty=$enableval,
-+enable_install_libiberty=no)dnl
-+
-+# Option parsed, now set things appropriately.
-+case x"$enable_install_libiberty" in
-+  xyes|x)
-+    target_header_dir=libiberty
-+    ;;
-+  xno)   
-+    target_header_dir=
-+    ;;
-+  *) 
-+    # This could be sanity-checked in various ways...
-+    target_header_dir="${enable_install_libiberty}"
-+    ;;
-+esac
-+AC_MSG_RESULT($enable_install_libiberty)
-+AC_MSG_NOTICE([target_header_dir = $target_header_dir])
-+
- GCC_NO_EXECUTABLES
- AC_PROG_CC
- AC_SYS_LARGEFILE
-@@ -380,7 +405,6 @@ fi
- 
- setobjs=
- CHECK=
--target_header_dir=
- if test -n "${with_target_subdir}"; then
- 
-   # We are being configured as a target library.  AC_REPLACE_FUNCS
-@@ -492,27 +516,6 @@ if test -n "${with_target_subdir}"; then
- 
-   esac
- 
--  # We may wish to install the target headers somewhere.
--  AC_ARG_ENABLE(install-libiberty,
--  [  --enable-install-libiberty       Install headers for end users],
--  enable_install_libiberty=$enableval,
--  enable_install_libiberty=no)dnl
--  
--  # Option parsed, now set things appropriately.
--  case x"$enable_install_libiberty" in
--    xyes|x)
--      target_header_dir=libiberty
--      ;;
--    xno)   
--      target_header_dir=
--      ;;
--    *) 
--      # This could be sanity-checked in various ways...
--      target_header_dir="${enable_install_libiberty}"
--      ;;
--  esac
--
--
- else
- 
-    # Not a target library, so we set things up to run the test suite.
--- 
-1.9.3
-

bsp/buildroot/package/gcc/arc-2015.12/900-UPDATE-Fix-handling-complex-PIC-moves.patch

@@ -1,103 +0,0 @@
-From b55922d45fd16f5e8fc7c3885da42b2b9b37754d Mon Sep 17 00:00:00 2001
-From: Claudiu Zissulescu <claziss@synopsys.com>
-Date: Mon, 18 Jan 2016 16:43:18 +0100
-Subject: [PATCH] UPDATE: Fix handling complex PIC moves.
-
-fwprop is putting in the REG_EQUIV notes which are involving the
-constant pic unspecs.  Then, loop may use those notes for
-optimizations rezulting in complex patterns that are not supported by
-the current implementation. The following piece of code tries to
-convert the complex instruction in simpler ones.
-
-The fix is done in development tree: [arc-4.8-dev b55922d] 
-and will be a part of the next release of ARC GNU tools.
-Once that new release happens this patch must be removed.
-
-
-gcc/
-2016-01-18  Claudiu Zissulescu  <claziss@synopsys.com>
-
-	* config/arc/arc.c (arc_legitimize_pic_address): Handle MINUS
-	operations when doing PIC moves. Make this function static.
-	(arc_legitimate_pc_offset_p): Use
-	arc_raw_symbolic_reference_mentioned_p.
-	* config/arc/arc-protos.h (arc_legitimize_pic_address): Remove.
-
- gcc/config/arc/arc-protos.h |  1 -
- gcc/config/arc/arc.c        | 33 +++++++++++++++++++--------------
- 2 files changed, 19 insertions(+), 15 deletions(-)
-
- 	* config/arc/arc.c (arc_legitimize_pic_address): Handle complex
-diff --git a/gcc/config/arc/arc-protos.h b/gcc/config/arc/arc-protos.h
-index 464e0ab..5986e06 100644
---- a/gcc/config/arc/arc-protos.h
-+++ b/gcc/config/arc/arc-protos.h
-@@ -53,7 +53,6 @@ extern unsigned int arc_compute_frame_size ();
- extern bool arc_ccfsm_branch_deleted_p (void);
- extern void arc_ccfsm_record_branch_deleted (void);
- 
--extern rtx arc_legitimize_pic_address (rtx, rtx);
- void arc_asm_output_aligned_decl_local (FILE *, tree, const char *,
- 					unsigned HOST_WIDE_INT,
- 					unsigned HOST_WIDE_INT,
-diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
-index a89c8ee..f7cae9f 100644
---- a/gcc/config/arc/arc.c
-+++ b/gcc/config/arc/arc.c
-@@ -5243,19 +5243,7 @@ arc_legitimate_pc_offset_p (rtx addr)
-   if (GET_CODE (addr) != CONST)
-     return false;
-   addr = XEXP (addr, 0);
--  if (GET_CODE (addr) == PLUS)
--    {
--      if (GET_CODE (XEXP (addr, 1)) != CONST_INT)
--	return false;
--      addr = XEXP (addr, 0);
--    }
--  return (GET_CODE (addr) == UNSPEC
--	  && XVECLEN (addr, 0) == 1
--	  && (XINT (addr, 1) == ARC_UNSPEC_GOT
--	      || XINT (addr, 1) == ARC_UNSPEC_GOTOFFPC
--	      || XINT (addr, 1) == UNSPEC_TLS_GD
--	      || XINT (addr, 1) == UNSPEC_TLS_IE)
--	  && GET_CODE (XVECEXP (addr, 0, 0)) == SYMBOL_REF);
-+  return flag_pic && !arc_raw_symbolic_reference_mentioned_p (addr, false);
- }
- 
- /* Return true if ADDR is a valid pic address.
-@@ -5522,7 +5510,7 @@ arc_legitimize_tls_address (rtx addr, enum tls_model model)
-    The return value is the legitimated address.
-    If OLDX is non-zero, it is the target to assign the address to first.  */
- 
--rtx
-+static rtx
- arc_legitimize_pic_address (rtx orig, rtx oldx)
- {
-   rtx addr = orig;
-@@ -5569,6 +5557,23 @@ arc_legitimize_pic_address (rtx orig, rtx oldx)
- 	      /* Check that the unspec is one of the ones we generate?  */
- 	      return orig;
- 	    }
-+	  else if (GET_CODE (addr) == MINUS)
-+	    {
-+	      /* The same story with fwprop.  */
-+	      rtx op0 = XEXP (addr, 0);
-+	      rtx op1 = XEXP (addr, 1);
-+	      gcc_assert (oldx);
-+	      gcc_assert (GET_CODE (op1) == UNSPEC);
-+
-+	      emit_move_insn (oldx,
-+			      gen_rtx_CONST (SImode,
-+					     arc_legitimize_pic_address (op1,
-+									 NULL_RTX)));
-+	      emit_insn (gen_rtx_SET (VOIDmode, oldx,
-+				      gen_rtx_MINUS (SImode, op0, oldx)));
-+	      return oldx;
-+
-+	    }
- 	  else if (GET_CODE (addr) != PLUS)
- 	    {
- 	      /* fwprop is putting in the REG_EQUIV notes which are
--- 
-2.5.0
-

bsp/buildroot/package/gcc/arc-2015.12/901-UPDATE1-Fix-handling-complex-PIC-moves.patch

@@ -1,83 +0,0 @@
-From f00b0f17d6889d811468c2c77508fbea8bfc377d Mon Sep 17 00:00:00 2001
-From: Claudiu Zissulescu <claziss@synopsys.com>
-Date: Tue, 19 Jan 2016 14:40:16 +0100
-Subject: [PATCH] UPDATE1: Fix handling complex PIC moves.
-
-The arc_legitimate_pc_offset_p condition is too lax. Updated it.
-
-The fix is done in development tree: [arc-4.8-dev f00b0f1] 
-and will be a part of the next release of ARC GNU tools.
-Once that new release happens this patch must be removed.
-
-gcc/
-2016-01-18  Claudiu Zissulescu  <claziss@synopsys.com>
-
-	* config/arc/arc.c (arc_needs_pcl_p ): New function
-	(arc_legitimate_pc_offset_p): Use arc_needs_pcl_p.
----
- gcc/config/arc/arc.c | 42 ++++++++++++++++++++++++++++++++++++++++--
- 1 file changed, 40 insertions(+), 2 deletions(-)
-
-diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
-index f7cae9f..18d88a3 100644
---- a/gcc/config/arc/arc.c
-+++ b/gcc/config/arc/arc.c
-@@ -5234,6 +5234,45 @@ arc_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED,
-     }
- }
- 
-+/* Helper used by arc_legitimate_pc_offset_p.  */
-+
-+static bool
-+arc_needs_pcl_p (rtx x)
-+{
-+  register const char *fmt;
-+  register int i, j;
-+
-+  if ((GET_CODE (x) == UNSPEC)
-+      && (XVECLEN (x, 0) == 1)
-+      && (GET_CODE (XVECEXP (x, 0, 0)) == SYMBOL_REF))
-+    switch (XINT (x, 1))
-+      {
-+      case ARC_UNSPEC_GOT:
-+      case ARC_UNSPEC_GOTOFFPC:
-+      case UNSPEC_TLS_GD:
-+      case UNSPEC_TLS_IE:
-+	return true;
-+      default:
-+	break;
-+      }
-+
-+  fmt = GET_RTX_FORMAT (GET_CODE (x));
-+  for (i = GET_RTX_LENGTH (GET_CODE (x)) - 1; i >= 0; i--)
-+    {
-+      if (fmt[i] == 'e')
-+	{
-+	  if (arc_needs_pcl_p (XEXP (x, i)))
-+	    return true;
-+	}
-+      else if (fmt[i] == 'E')
-+	for (j = XVECLEN (x, i) - 1; j >= 0; j--)
-+	  if (arc_needs_pcl_p (XVECEXP (x, i, j)))
-+	    return true;
-+    }
-+
-+  return false;
-+}
-+
- /* Return true if ADDR is an address that needs to be expressed as an
-    explicit sum of pcl + offset.  */
- 
-@@ -5242,8 +5281,7 @@ arc_legitimate_pc_offset_p (rtx addr)
- {
-   if (GET_CODE (addr) != CONST)
-     return false;
--  addr = XEXP (addr, 0);
--  return flag_pic && !arc_raw_symbolic_reference_mentioned_p (addr, false);
-+  return arc_needs_pcl_p (addr);
- }
- 
- /* Return true if ADDR is a valid pic address.
--- 
-2.5.0
-

bsp/buildroot/package/gcc/arc-2015.12/950-Don-t-allow-mcompact-casesi-for-ARCv2.patch

@@ -1,100 +0,0 @@
-From 09463827001a7b8094f4b9460514370a1876d908 Mon Sep 17 00:00:00 2001
-From: Claudiu Zissulescu <claziss@synopsys.com>
-Date: Wed, 20 Jan 2016 16:32:40 +0100
-Subject: [PATCH] Don't allow mcompact-casesi for ARCv2
-
-The compact casesi is not working for arcv2 processors family as it
-makes use of the add_s rx,rx,pcl instruction which is only valid for
-arc6xx and arc700 processors. Also not having this instruction makes
-no much sens to change the compact-casesi pattern to use normal add
-instructions as it nullifies the advantage of short instruction use.
-The default casesi pattern betters suits the arcv2 architecture.
-
-The fix is done in development tree: [arc-4.8-dev 0946382] 
-and will be a part of the next release of ARC GNU tools.
-Once that new release happens this patch must be removed.
-
-gcc/
-2016-01-20  Claudiu Zissulescu  <claziss@synopsys.com>
-
-	* common/config/arc/arc-common.c (arc_option_optimization_table):
-	Remove mcompact-casesi option.
-	* config/arc/arc.c (arc_override_options): Use compact-casesi only
-	for arcv1.
-	* config/arc/arc.md (casesi_load): Use short instructions.
----
- gcc/common/config/arc/arc-common.c |  1 -
- gcc/config/arc/arc.c               |  9 +++++----
- gcc/config/arc/arc.md              | 10 ++++++++--
- 3 files changed, 13 insertions(+), 7 deletions(-)
- 
- 	* config/arc/arc.c (arc_legitimize_pic_address): Handle MINUS
-diff --git a/gcc/common/config/arc/arc-common.c b/gcc/common/config/arc/arc-common.c
-index e2e36fa..310bc80 100644
---- a/gcc/common/config/arc/arc-common.c
-+++ b/gcc/common/config/arc/arc-common.c
-@@ -58,7 +58,6 @@ static const struct default_options arc_option_optimization_table[] =
-     { OPT_LEVELS_ALL, OPT_mbbit_peephole, NULL, 1 },
-     { OPT_LEVELS_SIZE, OPT_mq_class, NULL, 1 },
-     { OPT_LEVELS_SIZE, OPT_mcase_vector_pcrel, NULL, 1 },
--    { OPT_LEVELS_SIZE, OPT_mcompact_casesi, NULL, 1 },
-     { OPT_LEVELS_NONE, 0, NULL, 0 }
-   };
- 
-diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
-index 18d88a3..f828398 100644
---- a/gcc/config/arc/arc.c
-+++ b/gcc/config/arc/arc.c
-@@ -1151,6 +1151,11 @@ arc_override_options (void)
-   if (arc_size_opt_level == 3)
-     optimize_size = 1;
- 
-+  if (TARGET_V2)
-+    TARGET_COMPACT_CASESI = 0;
-+  else if (optimize_size == 1)
-+    TARGET_COMPACT_CASESI = 1;
-+
-   if (flag_pic)
-     target_flags |= MASK_NO_SDATA_SET;
- 
-@@ -1163,10 +1168,6 @@ arc_override_options (void)
-   if (!TARGET_Q_CLASS)
-     TARGET_COMPACT_CASESI = 0;
- 
--  /* For the time being don't support COMPACT_CASESI for ARCv2. */
--  if (TARGET_V2)
--    TARGET_COMPACT_CASESI = 0;
--
-   if (TARGET_COMPACT_CASESI)
-     TARGET_CASE_VECTOR_PC_RELATIVE = 1;
- 
-diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md
-index bc4ac38..ba7c8bc 100644
---- a/gcc/config/arc/arc.md
-+++ b/gcc/config/arc/arc.md
-@@ -3837,14 +3837,20 @@
-   switch (GET_MODE (diff_vec))
-     {
-     case SImode:
--      return \"ld.as %0,[%1,%2]%&\";
-+      if ((which_alternative == 0) && TARGET_CODE_DENSITY)
-+       return \"ld_s.as %0,[%1,%2]%&\";
-+      else
-+       return \"ld.as %0,[%1,%2]%&\";
-     case HImode:
-       if (ADDR_DIFF_VEC_FLAGS (diff_vec).offset_unsigned)
- 	return \"ldw.as %0,[%1,%2]\";
-       return \"ldw.x.as %0,[%1,%2]\";
-     case QImode:
-       if (ADDR_DIFF_VEC_FLAGS (diff_vec).offset_unsigned)
--	return \"ldb%? %0,[%1,%2]%&\";
-+        if (which_alternative == 0)
-+	 return \"ldb_s %0,[%1,%2]%&\";
-+        else
-+	 return \"ldb %0,[%1,%2]%&\";
-       return \"ldb.x %0,[%1,%2]\";
-     default:
-       gcc_unreachable ();
--- 
-2.5.0
-

bsp/buildroot/package/gcc/arc-2016.09-eng010/301-missing-execinfo_h.patch

@@ -0,0 +1,13 @@
+Index: b/boehm-gc/include/gc.h
+===================================================================
+--- a/boehm-gc/include/gc.h
++++ b/boehm-gc/include/gc.h
+@@ -503,7 +503,7 @@
+ #if defined(__linux__) || defined(__GLIBC__)
+ # include <features.h>
+ # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
+-     && !defined(__ia64__)
++     && !defined(__ia64__) && !defined(__UCLIBC__)
+ #   ifndef GC_HAVE_BUILTIN_BACKTRACE
+ #     define GC_HAVE_BUILTIN_BACKTRACE
+ #   endif

bsp/buildroot/package/gcc/arc-2016.09-eng010/860-cilk-wchar.patch

@@ -0,0 +1,56 @@
+[PATCH] cilk: fix build without wchar
+
+When building against uClibc with wchar support disabled, WCHAR_MIN and
+WCHAR_MAX are not defined leading to compilation errors.
+
+Fix it by only including the wchar code if available.
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libcilkrts/include/cilk/reducer_min_max.h |    8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+Index: b/libcilkrts/include/cilk/reducer_min_max.h
+===================================================================
+--- a/libcilkrts/include/cilk/reducer_min_max.h
++++ b/libcilkrts/include/cilk/reducer_min_max.h
+@@ -3154,7 +3154,9 @@
+ CILK_C_REDUCER_MAX_INSTANCE(char,               char,       CHAR_MIN)
+ CILK_C_REDUCER_MAX_INSTANCE(unsigned char,      uchar,      0)
+ CILK_C_REDUCER_MAX_INSTANCE(signed char,        schar,      SCHAR_MIN)
++#ifdef WCHAR_MIN
+ CILK_C_REDUCER_MAX_INSTANCE(wchar_t,            wchar_t,    WCHAR_MIN)
++#endif
+ CILK_C_REDUCER_MAX_INSTANCE(short,              short,      SHRT_MIN)
+ CILK_C_REDUCER_MAX_INSTANCE(unsigned short,     ushort,     0)
+ CILK_C_REDUCER_MAX_INSTANCE(int,                int,        INT_MIN)
+@@ -3306,7 +3308,9 @@
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(char,               char,       CHAR_MIN)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(unsigned char,      uchar,      0)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(signed char,        schar,      SCHAR_MIN)
++#ifdef WCHAR_MIN
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(wchar_t,            wchar_t,    WCHAR_MIN)
++#endif
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(short,              short,      SHRT_MIN)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(unsigned short,     ushort,     0)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(int,                int,        INT_MIN)
+@@ -3432,7 +3436,9 @@
+ CILK_C_REDUCER_MIN_INSTANCE(char,               char,       CHAR_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(unsigned char,      uchar,      CHAR_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(signed char,        schar,      SCHAR_MAX)
++#ifdef WCHAR_MAX
+ CILK_C_REDUCER_MIN_INSTANCE(wchar_t,            wchar_t,    WCHAR_MAX)
++#endif
+ CILK_C_REDUCER_MIN_INSTANCE(short,              short,      SHRT_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(unsigned short,     ushort,     USHRT_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(int,                int,        INT_MAX)
+@@ -3584,7 +3590,9 @@
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(char,               char,       CHAR_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(unsigned char,      uchar,      CHAR_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(signed char,        schar,      SCHAR_MAX)
++#ifdef WCHAR_MAX
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(wchar_t,            wchar_t,    WCHAR_MAX)
++#endif
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(short,              short,      SHRT_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(unsigned short,     ushort,     USHRT_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(int,                int,        INT_MAX)

bsp/buildroot/package/gcc/arc-2016.09-eng010/940-uclinux-enable-threads.patch

@@ -0,0 +1,19 @@
+Enable POSIX threads for uClinux targets
+Reported upstream:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-6.1.0.orig/gcc/config.gcc gcc-6.1.0/gcc/config.gcc
+--- gcc-6.1.0.orig/gcc/config.gcc	2016-04-11 12:14:59.000000000 +0200
++++ gcc-6.1.0/gcc/config.gcc	2016-07-02 20:04:25.732169982 +0200
+@@ -833,6 +833,9 @@
+ *-*-uclinux*)
+   extra_options="$extra_options gnu-user.opt"
+   use_gcc_stdint=wrap
++  case ${enable_threads} in
++    "" | yes | posix) thread_file='posix' ;;
++  esac
+   tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
+   ;;
+ *-*-rdos*)

bsp/buildroot/package/gcc/gcc-final/gcc-final.mk

@@ -74,6 +74,10 @@ HOST_GCC_FINAL_CONF_OPTS += "--with-multilib-list=m4a,m4a-nofpu"
 HOST_GCC_FINAL_GCC_LIB_DIR = $(HOST_DIR)/usr/$(GNU_TARGET_NAME)/lib/!m4*
 endif
 
+ifeq ($(BR2_bfin),y)
+HOST_GCC_FINAL_CONF_OPTS += --disable-symvers
+endif
+
 # Disable shared libs like libstdc++ if we do static since it confuses linking
 ifeq ($(BR2_STATIC_LIBS),y)
 HOST_GCC_FINAL_CONF_OPTS += --disable-shared
@@ -113,9 +117,9 @@ HOST_GCC_FINAL_POST_BUILD_HOOKS += TOOLCHAIN_BUILD_WRAPPER
 # -cc symlink to the wrapper is not created.
 HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_INSTALL_WRAPPER_AND_SIMPLE_SYMLINKS
 
-# In gcc 4.7.x, the ARM EABIhf library loader path for (e)glibc was not
+# In gcc 4.7.x, the ARM EABIhf library loader path for glibc was not
 # correct, so we create a symbolic link to make things work
-# properly. eglibc installs the library loader as ld-linux-armhf.so.3,
+# properly. glibc installs the library loader as ld-linux-armhf.so.3,
 # but gcc creates binaries that reference ld-linux.so.3.
 ifeq ($(BR2_arm)$(BR2_ARM_EABIHF)$(BR2_GCC_VERSION_4_7_X)$(BR2_TOOLCHAIN_USES_GLIBC),yyyy)
 define HOST_GCC_FINAL_LD_LINUX_LINK
@@ -125,6 +129,15 @@ endef
 HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_LD_LINUX_LINK
 endif
 
+# coldfire is not working without removing these object files from libgcc.a
+ifeq ($(BR2_m68k_cf),y)
+define HOST_GCC_FINAL_M68K_LIBGCC_FIXUP
+	find $(STAGING_DIR) -name libgcc.a -print | \
+		while read t; do $(GNU_TARGET_NAME)-ar dv "$t" _ctors.o; done
+endef
+HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_M68K_LIBGCC_FIXUP
+endif
+
 # Cannot use the HOST_GCC_FINAL_USR_LIBS mechanism below, because we want
 # libgcc_s to be installed in /lib and not /usr/lib.
 define HOST_GCC_FINAL_INSTALL_LIBGCC
@@ -154,6 +167,10 @@ endif
 
 ifeq ($(BR2_TOOLCHAIN_BUILDROOT_FORTRAN),y)
 HOST_GCC_FINAL_USR_LIBS += libgfortran
+# fortran needs quadmath on x86 and x86_64
+ifeq ($(BR2_TOOLCHAIN_HAS_LIBQUADMATH),y)
+HOST_GCC_FINAL_USR_LIBS += libquadmath
+endif
 endif
 
 ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
@@ -195,8 +212,4 @@ endef
 HOST_GCC_FINAL_POST_INSTALL_HOOKS += HOST_GCC_FINAL_INSTALL_USR_LIBS
 endif
 
-ifeq ($(BR2_xtensa),y)
-HOST_GCC_FINAL_CONF_OPTS += --enable-cxx-flags="$(TARGET_ABI)"
-endif
-
 $(eval $(host-autotools-package))

bsp/buildroot/package/gcc/gcc.hash

@@ -4,9 +4,12 @@ sha512  78696b287d46aacd6f150920da376ea32f58ad9f0dafd2d3b7fa6dbdd8dd7afe659108d1
 sha512  dfcb737073191e628231031a3571ec77ee760a59377630f4a6e4fdfa66f9ddad39fde47e3f0f227eb43cdf90e0d34cde5abdc9ac892c1e111a911062a66c9189  gcc-4.7.4.tar.bz2
 # From ftp://gcc.gnu.org/pub/gcc/releases/gcc-4.8.5/sha512.sum
 sha512  47fdfeca0c0a624cdec9c4ae47137d056c918d5c386d4b96985bb3c8172aba377cb66cbcc30e80832fd244a7d98f562c20198056915c70cfef0977545073a8ea  gcc-4.8.5.tar.bz2
-# From ftp://gcc.gnu.org/pub/gcc/releases/gcc-4.9.3/sha512.sum
-sha512  9ac57377a6975fc7adac704ec81355262b9f537def6955576753b87715470a20ee6a2a3144a79cc8fcba3443f7b44c7337d79d704b522d053f54f79aa6b442df  gcc-4.9.3.tar.bz2
-# From ftp://gcc.gnu.org/pub/gcc/releases/gcc-5.3.0/sha512.sum
-sha512  d619847383405fd389f5a2d7225f97fedb01f81478dbb8339047ccba7561a5c20045ab500a8744bffd19ea51892ce09fc37f862f2cfcb42de0f0f8cd8f8da37a  gcc-5.3.0.tar.bz2
-# No hash for the ARC variant, comes from the github-helper:
-none  xxx  gcc-arc-2015.12.tar.gz
+# From ftp://gcc.gnu.org/pub/gcc/releases/gcc-4.9.4/sha512.sum
+sha512  93abb78e16277454f41a8e9810f41f66c0fdffdc539a762ff6b67d3037f78db971378683fd2ebf707d1d51c059fad2161fe42d110c330027f40214b7db0f3efe  gcc-4.9.4.tar.bz2
+# From ftp://gcc.gnu.org/pub/gcc/releases/gcc-5.4.0/sha512.sum
+sha512  2941cc950c8f2409a314df497631f9b0266211aa74746c1839c46e04f1c7c299afe2528d1ef16ea39def408a644ba48f97519ec7a7dd37d260c3e9423514265b  gcc-5.4.0.tar.bz2
+# From ftp://gcc.gnu.org/pub/gcc/releases/gcc-6.1.0/sha512.sum
+sha512  eeed3e2018b8c012aabce419e8d718fde701e5c3c179b4486c61ba46e5736eecc8fccdd18b01fcd973a42c6ad3116dbbe2ee247fe3757d622d373f93ebaf8d2e  gcc-6.1.0.tar.bz2
+
+# Locally calculated (fetched from Github)
+sha512  a788737022c178a1e7704e4ecd3438937f2239bf27fd487db2b00e4bb5c6604535842e4d6798f120488bdbf0b226fa9c94f4b8aede4ce9d20b0add6bcec82927  gcc-arc-2016.09-eng010.tar.gz

bsp/buildroot/package/gcc/gcc.mk

@@ -41,10 +41,18 @@ endef
 endif
 endif
 
+# gcc is a special package, not named gcc, but gcc-initial and
+# gcc-final, but patches are nonetheless stored in package/gcc in the
+# tree, and potentially in BR2_GLOBAL_PATCH_DIR directories as well.
 define HOST_GCC_APPLY_PATCHES
-	if test -d package/gcc/$(GCC_VERSION); then \
-	  $(APPLY_PATCHES) $(@D) package/gcc/$(GCC_VERSION) \*.patch ; \
-	fi;
+	for patchdir in \
+	    package/gcc/$(GCC_VERSION) \
+	    $(addsuffix /gcc/$(GCC_VERSION),$(call qstrip,$(BR2_GLOBAL_PATCH_DIR))) \
+	    $(addsuffix /gcc,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR))) ; do \
+		if test -d $${patchdir}; then \
+			$(APPLY_PATCHES) $(@D) $${patchdir} \*.patch || exit 1; \
+		fi; \
+	done
 	$(HOST_GCC_APPLY_POWERPC_PATCH)
 endef
 
@@ -97,22 +105,6 @@ HOST_GCC_COMMON_CONF_ENV = \
 GCC_COMMON_TARGET_CFLAGS = $(TARGET_CFLAGS)
 GCC_COMMON_TARGET_CXXFLAGS = $(TARGET_CXXFLAGS)
 
-# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43810
-# Workaround until it's fixed in 4.5.4 or later
-ifeq ($(ARCH),powerpc)
-ifeq ($(findstring x4.5.,x$(GCC_VERSION)),x4.5.)
-GCC_COMMON_TARGET_CFLAGS = $(filter-out -Os,$(GCC_COMMON_TARGET_CFLAGS))
-GCC_COMMON_TARGET_CXXFLAGS = $(filter-out -Os,$(GCC_COMMON_TARGET_CXXFLAGS))
-endif
-endif
-
-# Xtensa libgcc can't be built with -mauto-litpools
-# because of the trick used to generate .init/.fini sections.
-ifeq ($(BR2_xtensa),y)
-GCC_COMMON_TARGET_CFLAGS = $(filter-out -mauto-litpools,$(TARGET_CFLAGS))
-GCC_COMMON_TARGET_CXXFLAGS = $(filter-out -mauto-litpools,$(TARGET_CXXFLAGS))
-endif
-
 # Propagate options used for target software building to GCC target libs
 HOST_GCC_COMMON_CONF_ENV += CFLAGS_FOR_TARGET="$(GCC_COMMON_TARGET_CFLAGS)"
 HOST_GCC_COMMON_CONF_ENV += CXXFLAGS_FOR_TARGET="$(GCC_COMMON_TARGET_CXXFLAGS)"
@@ -122,8 +114,10 @@ ifeq ($(BR2_sparc_v8)$(BR2_sparc_leon3),y)
 HOST_GCC_COMMON_CONF_OPTS += --disable-libitm
 endif
 
-# gcc 4.6.x quadmath requires wchar
-ifneq ($(BR2_TOOLCHAIN_BUILDROOT_WCHAR),y)
+# quadmath support requires wchar
+ifeq ($(BR2_USE_WCHAR)$(BR2_TOOLCHAIN_HAS_LIBQUADMATH),yy)
+HOST_GCC_COMMON_CONF_OPTS += --enable-libquadmath
+else
 HOST_GCC_COMMON_CONF_OPTS += --disable-libquadmath
 endif
 
@@ -199,6 +193,7 @@ HOST_GCC_COMMON_CONF_OPTS += --disable-decimal-float
 endif
 
 # Determine arch/tune/abi/cpu options
+ifeq ($(BR2_GCC_ARCH_HAS_CONFIGURABLE_DEFAULTS),y)
 ifneq ($(call qstrip,$(BR2_GCC_TARGET_ARCH)),)
 HOST_GCC_COMMON_CONF_OPTS += --with-arch=$(BR2_GCC_TARGET_ARCH)
 endif
@@ -227,6 +222,7 @@ GCC_TARGET_MODE = $(call qstrip,$(BR2_GCC_TARGET_MODE))
 ifneq ($(GCC_TARGET_MODE),)
 HOST_GCC_COMMON_CONF_OPTS += --with-mode=$(GCC_TARGET_MODE)
 endif
+endif # BR2_GCC_ARCH_HAS_CONFIGURABLE_DEFAULTS
 
 # Enable proper double/long double for SPE ABI
 ifeq ($(BR2_powerpc_SPE),y)
@@ -236,6 +232,37 @@ HOST_GCC_COMMON_CONF_OPTS += \
 endif
 
 HOST_GCC_COMMON_TOOLCHAIN_WRAPPER_ARGS += -DBR_CROSS_PATH_SUFFIX='".br_real"'
+ifeq ($(BR2_GCC_ARCH_HAS_CONFIGURABLE_DEFAULTS),)
+ifeq ($(call qstrip,$(BR2_GCC_TARGET_CPU_REVISION)),)
+HOST_GCC_COMMON_WRAPPER_TARGET_CPU := $(call qstrip,$(BR2_GCC_TARGET_CPU))
+else
+HOST_GCC_COMMON_WRAPPER_TARGET_CPU := $(call qstrip,$(BR2_GCC_TARGET_CPU)-$(BR2_GCC_TARGET_CPU_REVISION))
+endif
+HOST_GCC_COMMON_WRAPPER_TARGET_ARCH := $(call qstrip,$(BR2_GCC_TARGET_ARCH))
+HOST_GCC_COMMON_WRAPPER_TARGET_ABI := $(call qstrip,$(BR2_GCC_TARGET_ABI))
+HOST_GCC_COMMON_WRAPPER_TARGET_FPU := $(call qstrip,$(BR2_GCC_TARGET_FPU))
+HOST_GCC_COMMON_WRAPPER_TARGET_FLOAT_ABI := $(call qstrip,$(BR2_GCC_TARGET_FLOAT_ABI))
+HOST_GCC_COMMON_WRAPPER_TARGET_MODE := $(call qstrip,$(BR2_GCC_TARGET_MODE))
+
+ifneq ($(HOST_GCC_COMMON_WRAPPER_TARGET_ARCH),)
+HOST_GCC_COMMON_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARCH='"$(HOST_GCC_COMMON_WRAPPER_TARGET_ARCH)"'
+endif
+ifneq ($(HOST_GCC_COMMON_WRAPPER_TARGET_CPU),)
+HOST_GCC_COMMON_TOOLCHAIN_WRAPPER_ARGS += -DBR_CPU='"$(HOST_GCC_COMMON_WRAPPER_TARGET_CPU)"'
+endif
+ifneq ($(HOST_GCC_COMMON_WRAPPER_TARGET_ABI),)
+HOST_GCC_COMMON_TOOLCHAIN_WRAPPER_ARGS += -DBR_ABI='"$(HOST_GCC_COMMON_WRAPPER_TARGET_ABI)"'
+endif
+ifneq ($(HOST_GCC_COMMON_WRAPPER_TARGET_FPU),)
+HOST_GCC_COMMON_TOOLCHAIN_WRAPPER_ARGS += -DBR_FPU='"$(HOST_GCC_COMMON_WRAPPER_TARGET_FPU)"'
+endif
+ifneq ($(HOST_GCC_COMMON_WRAPPER_TARGET_FLOATABI_),)
+HOST_GCC_COMMON_TOOLCHAIN_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(HOST_GCC_COMMON_WRAPPER_TARGET_FLOATABI_)"'
+endif
+ifneq ($(HOST_GCC_COMMON_WRAPPER_TARGET_MODE),)
+HOST_GCC_COMMON_TOOLCHAIN_WRAPPER_ARGS += -DBR_MODE='"$(HOST_GCC_COMMON_WRAPPER_TARGET_MODE)"'
+endif
+endif # !BR2_GCC_ARCH_HAS_CONFIGURABLE_DEFAULTS
 
 # For gcc-initial, we need to tell gcc that the C library will be
 # providing the ssp support, as it can't guess it since the C library
@@ -249,13 +276,19 @@ HOST_GCC_COMMON_MAKE_OPTS = \
 
 ifeq ($(BR2_CCACHE),y)
 HOST_GCC_COMMON_CCACHE_HASH_FILES += $(DL_DIR)/$(GCC_SOURCE)
-# Cfr. PATCH_BASE_DIRS in .stamp_patched, but we catch both versioned and
-# unversioned patches unconditionally
+
+# Cfr. PATCH_BASE_DIRS in .stamp_patched, but we catch both versioned
+# and unversioned patches unconditionally. Moreover, to facilitate the
+# addition of gcc patches in BR2_GLOBAL_PATCH_DIR, we allow them to be
+# stored in a sub-directory called 'gcc' even if it's not technically
+# the name of the package.
 HOST_GCC_COMMON_CCACHE_HASH_FILES += \
 	$(sort $(wildcard \
 		package/gcc/$(GCC_VERSION)/*.patch \
-		$(addsuffix $((PKG)_RAWNAME)/$(GCC_VERSION)/*.patch,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR))) \
-		$(addsuffix $((PKG)_RAWNAME)/*.patch,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR)))))
+		$(addsuffix /$($(PKG)_RAWNAME)/$(GCC_VERSION)/*.patch,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR))) \
+		$(addsuffix /$($(PKG)_RAWNAME)/*.patch,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR))) \
+		$(addsuffix /gcc/$(GCC_VERSION)/*.patch,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR))) \
+		$(addsuffix /gcc/*.patch,$(call qstrip,$(BR2_GLOBAL_PATCH_DIR)))))
 ifeq ($(BR2_xtensa),y)
 HOST_GCC_COMMON_CCACHE_HASH_FILES += $(HOST_GCC_XTENSA_OVERLAY_TAR)
 endif
@@ -281,6 +314,8 @@ endif # BR2_CCACHE
 # used. However, we should not add the toolchain wrapper for them, and they
 # match the *cc-* pattern. Therefore, an additional case is added for *-ar,
 # *-ranlib and *-nm.
+# According to gfortran manpage, it supports all options supported by gcc, so
+# add gfortran to the list of the program called via the Buildroot wrapper.
 # Avoid that a .br_real is symlinked a second time.
 # Also create <arch>-linux-<tool> symlinks.
 define HOST_GCC_INSTALL_WRAPPER_AND_SIMPLE_SYMLINKS
@@ -292,7 +327,7 @@ define HOST_GCC_INSTALL_WRAPPER_AND_SIMPLE_SYMLINKS
 		*-ar|*-ranlib|*-nm) \
 			ln -snf $$i $(ARCH)-linux$${i##$(GNU_TARGET_NAME)}; \
 			;; \
-		*cc|*cc-*|*++|*++-*|*cpp) \
+		*cc|*cc-*|*++|*++-*|*cpp|*-gfortran) \
 			rm -f $$i.br_real; \
 			mv $$i $$i.br_real; \
 			ln -sf toolchain-wrapper $$i; \