Add GCc 4.8.2 support for buildroot

19 files changed, 803 insertions, 15 deletions

diff --git a/misc/buildroot/ChangeLog b/misc/buildroot/ChangeLog
index 64c7fc120..3643672b6 100644
--- a/misc/buildroot/ChangeLog
+++ b/misc/buildroot/ChangeLog
@@ -139,4 +139,5 @@ buildroot-1.13 2011-xx-xx <gnutt@nuttx.org>
 	  'gcc version 4.6.3'.  This changes solves the issue, but should be
 	  revisited at some time.  From Oliver Riesener (2013-12-12).
 	* Add support for Cortex-A5 and Cortex-A8
+	* Bring-in support for GCC 4.8.2 from the "real" buildroot (2013-12-26).
 
diff --git a/misc/buildroot/Config.in b/misc/buildroot/Config.in
index 6005bec83..2de4e570c 100644
--- a/misc/buildroot/Config.in
+++ b/misc/buildroot/Config.in
@@ -93,12 +93,16 @@ config BR2_arm1136jf_s
 	bool "ARM1136JF-S"
 config BR2_cortex_a5
 	bool "Cortex-A5"
+	select BR2_GCC_CORTEX
 config BR2_cortex_a8
 	bool "Cortex-A8"
+	select BR2_GCC_CORTEX
 config BR2_cortex_m3
 	bool "Cortex-M3/M4"
+	select BR2_GCC_CORTEX
 config BR2_cortex_m0
 	bool "Cortex-M0"
+	select BR2_GCC_CORTEX
 config BR2_sa110
 	bool "SA110"
 config BR2_sa1100
@@ -109,6 +113,10 @@ config BR2_iwmmxt
 	bool "iwmmxt"
 endchoice
 
+config BR2_GCC_CORTEX
+	bool
+	default n
+
 choice
 	prompt "Target ABI"
 	depends BR2_arm || BR2_armeb
diff --git a/misc/buildroot/toolchain/binutils/2.24/120-sh-conf.patch b/misc/buildroot/toolchain/binutils/2.24/120-sh-conf.patch
new file mode 100644
index 000000000..ea3d1b606
--- /dev/null
+++ b/misc/buildroot/toolchain/binutils/2.24/120-sh-conf.patch
@@ -0,0 +1,29 @@
+r10231 | lethal | 2005-05-02 09:58:00 -0400 (Mon, 02 May 2005) | 13 lines
+
+Likewise, binutils has no idea about any of these new targets either, so we 
+fix that up too.. now we're able to actually build a real toolchain for 
+sh2a_nofpu- and other more ineptly named toolchains (and yes, there are more 
+inept targets than that one, really. Go look, I promise).
+
+--- a/configure
++++ b/configure
+@@ -1495,7 +1495,7 @@
+   mips*-*-*)
+     noconfigdirs="$noconfigdirs gprof"
+     ;;
+-  sh-*-* | sh64-*-*)
++  sh*-*-* | sh64-*-*)
+     case "${target}" in
+       sh*-*-elf)
+          ;;
+--- a/configure.ac
++++ b/configure.ac
+@@ -712,7 +712,7 @@
+   mips*-*-*)
+     noconfigdirs="$noconfigdirs gprof"
+     ;;
+-  sh-*-* | sh64-*-*)
++  sh*-*-* | sh64-*-*)
+     case "${target}" in
+       sh*-*-elf)
+          ;;
diff --git a/misc/buildroot/toolchain/binutils/2.24/300-001_ld_makefile_patch.patch b/misc/buildroot/toolchain/binutils/2.24/300-001_ld_makefile_patch.patch
new file mode 100644
index 000000000..5cb0f614d
--- /dev/null
+++ b/misc/buildroot/toolchain/binutils/2.24/300-001_ld_makefile_patch.patch
@@ -0,0 +1,24 @@
+diff -u binutils-2.17.50.0.17.oorig/ld/Makefile.am binutils-2.17.50.0.17/ld/Makefile.am
+--- binutils-2.17.50.0.17.oorig/ld/Makefile.am	2007-06-18 19:29:29.000000000 +0200
++++ binutils-2.17.50.0.17/ld/Makefile.am	2007-06-25 10:00:36.000000000 +0200
+@@ -18,7 +18,7 @@
+ # We put the scripts in the directory $(scriptdir)/ldscripts.
+ # We can't put the scripts in $(datadir) because the SEARCH_DIR
+ # directives need to be different for native and cross linkers.
+-scriptdir = $(tooldir)/lib
++scriptdir = $(libdir)
+ 
+ EMUL = @EMUL@
+ EMULATION_OFILES = @EMULATION_OFILES@
+diff -u binutils-2.17.50.0.17.oorig/ld/Makefile.in binutils-2.17.50.0.17/ld/Makefile.in
+--- binutils-2.17.50.0.17.oorig/ld/Makefile.in	2007-06-18 19:29:29.000000000 +0200
++++ binutils-2.17.50.0.17/ld/Makefile.in	2007-06-25 10:00:36.000000000 +0200
+@@ -287,7 +287,7 @@
+ # We put the scripts in the directory $(scriptdir)/ldscripts.
+ # We can't put the scripts in $(datadir) because the SEARCH_DIR
+ # directives need to be different for native and cross linkers.
+-scriptdir = $(tooldir)/lib
++scriptdir = $(libdir)
+ BASEDIR = $(srcdir)/..
+ BFDDIR = $(BASEDIR)/bfd
+ INCDIR = $(BASEDIR)/include
diff --git a/misc/buildroot/toolchain/binutils/2.24/300-012_check_ldrunpath_length.patch b/misc/buildroot/toolchain/binutils/2.24/300-012_check_ldrunpath_length.patch
new file mode 100644
index 000000000..df783109b
--- /dev/null
+++ b/misc/buildroot/toolchain/binutils/2.24/300-012_check_ldrunpath_length.patch
@@ -0,0 +1,21 @@
+diff -Nura binutils-2.21.orig/ld/emultempl/elf32.em binutils-2.21/ld/emultempl/elf32.em
+--- binutils-2.21.orig/ld/emultempl/elf32.em	2010-10-29 09:10:36.000000000 -0300
++++ binutils-2.21/ld/emultempl/elf32.em	2010-12-10 09:26:56.746102724 -0300
+@@ -1270,6 +1270,8 @@
+ 	      && command_line.rpath == NULL)
+ 	    {
+ 	      lib_path = (const char *) getenv ("LD_RUN_PATH");
++	      if ((lib_path) && (strlen (lib_path) == 0))
++	      	lib_path = NULL;
+ 	      if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
+ 						      force))
+ 		break;
+@@ -1497,6 +1499,8 @@
+   rpath = command_line.rpath;
+   if (rpath == NULL)
+     rpath = (const char *) getenv ("LD_RUN_PATH");
++  if ((rpath) && (strlen (rpath) == 0))
++  	rpath = NULL;
+ 
+   for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)
+     if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
diff --git a/misc/buildroot/toolchain/binutils/2.24/500-sysroot.patch b/misc/buildroot/toolchain/binutils/2.24/500-sysroot.patch
new file mode 100644
index 000000000..e49c79533
--- /dev/null
+++ b/misc/buildroot/toolchain/binutils/2.24/500-sysroot.patch
@@ -0,0 +1,37 @@
+Signed-off-by: Sven Rebhan <odinshorse@googlemail.com>
+
+Always try to prepend the sysroot prefix to absolute filenames first.
+
+http://bugs.gentoo.org/275666
+http://sourceware.org/bugzilla/show_bug.cgi?id=10340
+
+--- a/ld/ldfile.c
++++ b/ld/ldfile.c
+@@ -308,18 +308,25 @@
+      directory first.  */
+   if (! entry->flags.maybe_archive)
+     {
+-      if (entry->flags.sysrooted && IS_ABSOLUTE_PATH (entry->filename))
++      /* For absolute pathnames, try to always open the file in the
++	 sysroot first. If this fails, try to open the file at the
++	 given location.  */
++      entry->flags.sysrooted = is_sysrooted_pathname (entry->filename);
++      if (!entry->flags.sysrooted && IS_ABSOLUTE_PATH (entry->filename)
++	  && ld_sysroot)
+ 	{
+ 	  char *name = concat (ld_sysroot, entry->filename,
+ 			       (const char *) NULL);
+ 	  if (ldfile_try_open_bfd (name, entry))
+ 	    {
+ 	      entry->filename = name;
++	      entry->flags.sysrooted = TRUE;
+ 	      return TRUE;
+ 	    }
+ 	  free (name);
+ 	}
+-      else if (ldfile_try_open_bfd (entry->filename, entry))
++
++      if (ldfile_try_open_bfd (entry->filename, entry))
+ 	return TRUE;
+ 
+       if (IS_ABSOLUTE_PATH (entry->filename))
diff --git a/misc/buildroot/toolchain/binutils/Config.in b/misc/buildroot/toolchain/binutils/Config.in
index 5aa674133..c3dfa133c 100644
--- a/misc/buildroot/toolchain/binutils/Config.in
+++ b/misc/buildroot/toolchain/binutils/Config.in
@@ -4,10 +4,10 @@ comment "Binutils Options"
 
 choice
 	prompt "Binutils Version"
-	default BR2_BINUTILS_VERSION_2_19_1 if BR2_cortex_a5 || BR2_cortex_a8 || BR2_cortex_m3 || BR2_cortex_m0
-	default BR2_BINUTILS_VERSION_2_19 if !BR2_avr32 && !BR2_cortex_a5 && !BR2_cortex_a8 && !BR2_cortex_m3 && !BR2_cortex_m0 && !BR2_m9s12x
+	default BR2_BINUTILS_VERSION_2_19_1 if BR2_GCC_CORTEX
+	default BR2_BINUTILS_VERSION_2_19 if !BR2_avr32 && !BR2_GCC_CORTEX && !BR2_m9s12x
 	default BR2_BINUTILS_VERSION_2_18 if BR2_m9s12x
-	default BR2_BINUTILS_VERSION_2_17 if !BR2_cortex_a5 && !BR2_cortex_a8 && !BR2_cortex_m3 && !BR2_cortex_m0 && !BR2_m9s12x
+	default BR2_BINUTILS_VERSION_2_17 if !BR2_GCC_CORTEX && !BR2_m9s12x
 	help
 	  Select the version of binutils you wish to use.
 
@@ -34,6 +34,11 @@ choice
 	config BR2_BINUTILS_VERSION_2_22
 		depends !BR2_avr32 && !BR2_nios2 && !BR2_m9s12x
 		bool "binutils 2.22"
+
+	config BR2_BINUTILS_VERSION_2_24
+		depends !BR2_avr32 && !BR2_nios2 && !BR2_m9s12x
+		bool "binutils 2.24"
+
 endchoice
 
 config BR2_BINUTILS_VERSION
@@ -44,6 +49,7 @@ config BR2_BINUTILS_VERSION
 	default "2.19.1"          if BR2_BINUTILS_VERSION_2_19_1
 	default "2.21.1"          if BR2_BINUTILS_VERSION_2_21_1
 	default "2.22"            if BR2_BINUTILS_VERSION_2_22
+	default "2.24"            if BR2_BINUTILS_VERSION_2_24
 
 config BR2_EXTRA_BINUTILS_CONFIG_OPTIONS
 	string "Additional binutils options"
diff --git a/misc/buildroot/toolchain/gcc/4.8.2/305-libmudflap-susv3-legacy.patch b/misc/buildroot/toolchain/gcc/4.8.2/305-libmudflap-susv3-legacy.patch
new file mode 100644
index 000000000..35d5f5020
--- /dev/null
+++ b/misc/buildroot/toolchain/gcc/4.8.2/305-libmudflap-susv3-legacy.patch
@@ -0,0 +1,49 @@
+Index: gcc-4.8.0/libmudflap/mf-hooks2.c
+===================================================================
+--- gcc-4.8.0.orig/libmudflap/mf-hooks2.c	2013-02-03 18:48:05.000000000 +0100
++++ gcc-4.8.0/libmudflap/mf-hooks2.c	2013-03-23 17:39:43.000000000 +0100
+@@ -424,7 +424,7 @@
+ {
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
+-  bzero (s, n);
++  memset (s, 0, n);
+ }
+ 
+ 
+@@ -434,7 +434,7 @@
+   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);
+ }
+ 
+ 
+@@ -444,7 +444,7 @@
+   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);
+ }
+ 
+ 
+@@ -453,7 +453,7 @@
+   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);
+ }
+ 
+ 
+@@ -462,7 +462,7 @@
+   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 */
diff --git a/misc/buildroot/toolchain/gcc/4.8.2/810-arm-softfloat-libgcc.patch b/misc/buildroot/toolchain/gcc/4.8.2/810-arm-softfloat-libgcc.patch
new file mode 100644
index 000000000..c8cb377d5
--- /dev/null
+++ b/misc/buildroot/toolchain/gcc/4.8.2/810-arm-softfloat-libgcc.patch
@@ -0,0 +1,30 @@
+Index: gcc-4.8.0/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 @@
+    %{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: gcc-4.8.0/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
+@@ -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.
diff --git a/misc/buildroot/toolchain/gcc/4.8.2/830-arm_unbreak_armv4t.patch b/misc/buildroot/toolchain/gcc/4.8.2/830-arm_unbreak_armv4t.patch
new file mode 100644
index 000000000..37f8f2a54
--- /dev/null
+++ b/misc/buildroot/toolchain/gcc/4.8.2/830-arm_unbreak_armv4t.patch
@@ -0,0 +1,13 @@
+http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
+
+--- 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
+-#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
++#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
+ 
+ /* TARGET_BIG_ENDIAN_DEFAULT is set in
+    config.gcc for big endian configurations.  */
diff --git a/misc/buildroot/toolchain/gcc/4.8.2/840-PR57717.patch b/misc/buildroot/toolchain/gcc/4.8.2/840-PR57717.patch
new file mode 100644
index 000000000..f983f70d0
--- /dev/null
+++ b/misc/buildroot/toolchain/gcc/4.8.2/840-PR57717.patch
@@ -0,0 +1,23 @@
+This backports fix from http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57717
+
+Upstream-Status: Backport
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Index: gcc-4.8.1/gcc/config/rs6000/rs6000.c
+===================================================================
+--- gcc-4.8.1.orig/gcc/config/rs6000/rs6000.c	2013-05-09 18:54:06.000000000 -0700
++++ gcc-4.8.1/gcc/config/rs6000/rs6000.c	2013-06-27 08:22:40.459021366 -0700
+@@ -5431,11 +5431,12 @@
+ 
+     case TFmode:
+     case TDmode:
+-    case TImode:
+       if (TARGET_E500_DOUBLE)
+ 	return (SPE_CONST_OFFSET_OK (offset)
+ 		&& SPE_CONST_OFFSET_OK (offset + 8));
++        /* Fall through.  */
+ 
++    case TImode:
+       extra = 8;
+       if (!worst_case)
+ 	break;
diff --git a/misc/buildroot/toolchain/gcc/4.8.2/841-PR57717-E500v2.patch b/misc/buildroot/toolchain/gcc/4.8.2/841-PR57717-E500v2.patch
new file mode 100644
index 000000000..96fa1da07
--- /dev/null
+++ b/misc/buildroot/toolchain/gcc/4.8.2/841-PR57717-E500v2.patch
@@ -0,0 +1,21 @@
+This backports fix from http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57717
+
+Upstream-Status: Backport
+Signed-off-by: Julian Brown <Julian_Brown@mentor.com>
+
+fix for PR57717 (PowerPC E500v2)
+http://gcc.gnu.org/ml/gcc-patches/2013-08/msg00668.html
+
+--- a/gcc/config/rs6000/rs6000.c	2013-05-09 20:54:06.000000000 -0500
++++ b/gcc/config/rs6000/rs6000.c	2013-08-28 01:25:24.865218744 -0500
+@@ -6337,9 +6337,7 @@
+       && GET_CODE (XEXP (x, 1)) == CONST_INT
+       && reg_offset_p
+       && !SPE_VECTOR_MODE (mode)
+-      && !(TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode
+-				  || mode == DDmode || mode == TDmode
+-				  || mode == DImode))
++      && !(TARGET_E500_DOUBLE && GET_MODE_SIZE (mode) > UNITS_PER_WORD)
+       && VECTOR_MEM_NONE_P (mode))
+     {
+       HOST_WIDE_INT val = INTVAL (XEXP (x, 1));
diff --git a/misc/buildroot/toolchain/gcc/4.8.2/powerpc-link-with-math-lib.patch.conditional b/misc/buildroot/toolchain/gcc/4.8.2/powerpc-link-with-math-lib.patch.conditional
new file mode 100644
index 000000000..b7094fe65
--- /dev/null
+++ b/misc/buildroot/toolchain/gcc/4.8.2/powerpc-link-with-math-lib.patch.conditional
@@ -0,0 +1,122 @@
+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>
+
+---
+ libgcc/Makefile.in  |    4 +++-
+ libgcc/configure    |   32 ++++++++++++++++++++++++++++++++
+ libgcc/configure.ac |   21 +++++++++++++++++++++
+ 3 files changed, 56 insertions(+), 1 deletion(-)
+
+Index: gcc-4.8.0/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@
+ 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 @@
+ 		@multilib_dir@,$(MULTIDIR),$(subst \
+ 		@shlib_objs@,$(objects) libgcc.a,$(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) $(extra-parts)
+ 	# @multilib_flags@ is still needed because this may use
+Index: gcc-4.8.0/libgcc/configure
+===================================================================
+--- gcc-4.8.0.orig/libgcc/configure	2012-11-05 00:08:42.000000000 +0100
++++ gcc-4.8.0/libgcc/configure	2013-03-24 09:12:43.000000000 +0100
+@@ -564,6 +564,7 @@
+ tmake_file
+ sfp_machine_header
+ set_use_emutls
++LIBGCC_LIBM
+ set_have_cc_tls
+ vis_hide
+ fixed_point
+@@ -4481,6 +4482,37 @@
+ 	fi
+ fi
+ 
++# On powerpc libgcc_s references copysignl which is a libm function but
++# glibc apparently also provides it via libc as opposed to uClibc where
++# it lives in libm.
++echo "$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="$LIBGCC_LIBM -lm" ;;
++  *) LIBGCC_LIBM= ;;
++esac
+ 
+ # Conditionalize the makefile for this target machine.
+ tmake_file_=
+Index: gcc-4.8.0/libgcc/configure.ac
+===================================================================
+--- gcc-4.8.0.orig/libgcc/configure.ac	2012-10-15 15:10:30.000000000 +0200
++++ gcc-4.8.0/libgcc/configure.ac	2013-03-24 09:12:43.000000000 +0100
+@@ -326,6 +326,27 @@
+ fi
+ AC_SUBST(set_have_cc_tls)
+ 
++# On powerpc libgcc_s references copysignl which is a libm function but
++# glibc apparently also provides it via libc as opposed to uClibc where
++# it lives in libm.
++AC_CACHE_CHECK
++  libgcc_cv_copysignl_lib,
++    echo '#include <features.h>' > conftest.c
++    echo 'int the_libc = __UCLIBC__ + __powerpc__;' >> conftest.c
++    libgcc_cv_copysignl_lib="-lc"
++    if AC_TRY_COMMAND(${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=
diff --git a/misc/buildroot/toolchain/gcc/Config.in b/misc/buildroot/toolchain/gcc/Config.in
index f7f9bfd28..3a8f61592 100644
--- a/misc/buildroot/toolchain/gcc/Config.in
+++ b/misc/buildroot/toolchain/gcc/Config.in
@@ -3,31 +3,31 @@
 comment "GCC Options"
 
 config BR2_PACKAGE_GCC
-        bool "Build GCC cross-compiler"
-        default n
-        help
-            Build the GCC cross-compiler for the target architecture.
+	bool "Build GCC cross-compiler"
+	default n
+	help
+		Build the GCC cross-compiler for the target architecture.
 
 choice
 	prompt "GCC compiler Version"
-	default BR2_GCC_VERSION_4_3_3 if BR2_cortex_a5 || BR2_cortex_a8 || BR2_cortex_m3 || BR2_cortex_m0
-	default BR2_GCC_VERSION_4_2_4 if !BR2_avr32 && !BR2_cortex_a5 && !BR2_cortex_a8 && !BR2_cortex_m3 && !BR2_cortex_m0 && !BR2_m9s12x
+	default BR2_GCC_VERSION_4_3_3 if BR2_GCC_CORTEX
+	default BR2_GCC_VERSION_4_2_4 if !BR2_avr32 && !BR2_GCC_CORTEX && !BR2_m9s12x
 	default BR2_GCC_VERSION_3_4_6 if BR2_avr32
 	default BR2_GCC_VERSION_3_3_6 if BR2_m9s12x
 	depends on BR2_PACKAGE_GCC
 	help
-	  Select the version of gcc you wish to use.
+		Select the version of gcc you wish to use.
 
 	config BR2_GCC_VERSION_3_3_6
 		depends on BR2_m9s12x
 		bool "gcc 3.3.6"
 
     config BR2_GCC_VERSION_3_4_6
-		depends on !BR2_m32c && !BR2_cortex_a5 && !BR2_cortex_a8 && !BR2_cortex_m3 && !BR2_cortex_m0 && !BR2_m9s12x
+		depends on !BR2_m32c && !BR2_GCC_CORTEX
 		bool "gcc 3.4.6"
 
 	config BR2_GCC_VERSION_4_2_4
-		depends on !BR2_avr32 && !BR2_nios2 && !BR2_cortex_a5 && !BR2_cortex_a8 && !BR2_cortex_m3 && !BR2_cortex_m0 && !BR2_m9s12x
+		depends on !BR2_avr32 && !BR2_nios2 && !BR2_GCC_CORTEX && !BR2_m9s12x
 		select BR2_GCC_SUPPORTS_SYSROOT
 		bool "gcc 4.2.4"
 
@@ -46,6 +46,11 @@ choice
 		select BR2_GCC_SUPPORTS_SYSROOT
 		bool "gcc 4.6.3"
 
+	config BR2_GCC_VERSION_4_8_2
+		depends on !BR2_avr32 && !BR2_nios2 && !BR2_m9s12x
+		select BR2_GCC_SUPPORTS_SYSROOT
+		bool "gcc 4.8.2"
+
 endchoice
 
 config BR2_GCC_SUPPORTS_SYSROOT
@@ -60,6 +65,7 @@ config BR2_GCC_VERSION
 	default "4.3.3"     if BR2_GCC_VERSION_4_3_3
 	default "4.5.2"     if BR2_GCC_VERSION_4_5_2
 	default "4.6.3"     if BR2_GCC_VERSION_4_6_3
+	default "4.8.2"     if BR2_GCC_VERSION_4_8_2
 
 config BR2_GCC_USE_SJLJ_EXCEPTIONS
 	bool "Enable setjmp/longjmp exceptions?"
diff --git a/misc/buildroot/toolchain/gdb/7.4.1/00_all_ptrace_setsiginfo.patch b/misc/buildroot/toolchain/gdb/7.4.1/00_all_ptrace_setsiginfo.patch
new file mode 100644
index 000000000..81a92db9a
--- /dev/null
+++ b/misc/buildroot/toolchain/gdb/7.4.1/00_all_ptrace_setsiginfo.patch
@@ -0,0 +1,314 @@
+fix from upstream for building with newer kernel headers
+
+From a7f9ca9cb797d653dc7919538e1dfa0c26010331 Mon Sep 17 00:00:00 2001
+From: tschwinge <tschwinge>
+Date: Wed, 21 Mar 2012 13:43:50 +0000
+Subject: [PATCH] struct siginfo vs. siginfo_t
+
+gdb/
+	* amd64-linux-nat.c (amd64_linux_siginfo_fixup): Use siginfo_t instead
+	of struct siginfo.
+	* arm-linux-nat.c (arm_linux_stopped_data_address): Likewise.
+	* ia64-linux-nat.c (ia64_linux_stopped_data_address): Likewise.
+	* linux-nat.c (linux_nat_siginfo_fixup, siginfo_fixup)
+	(linux_xfer_siginfo, linux_nat_set_siginfo_fixup)
+	(linux_nat_get_siginfo): Likewise.
+	* linux-nat.h (struct lwp_info, linux_nat_set_siginfo_fixup)
+	(linux_nat_get_siginfo): Likewise.
+	* linux-tdep.c (linux_get_siginfo_type): Likewise.
+	* ppc-linux-nat.c (ppc_linux_stopped_data_address): Likewise.
+	* procfs.c (gdb_siginfo_t): Likewise.
+
+gdbserver/
+	* linux-arm-low.c (arm_stopped_by_watchpoint): Use siginfo_t instead of
+	struct siginfo.
+	* linux-low.c (siginfo_fixup, linux_xfer_siginfo): Likewise.
+	* linux-x86-low.c (x86_siginfo_fixup): Likewise.
+	* linux-low.h: Include <signal.h>.
+	(struct siginfo): Remove forward declaration.
+	(struct linux_target_ops) <siginfo_fixup>: Use siginfo_t instead of
+	struct siginfo.
+---
+ gdb/ChangeLog                 |   15 +++++++++++++++
+ gdb/amd64-linux-nat.c         |    4 ++--
+ gdb/arm-linux-nat.c           |    2 +-
+ gdb/gdbserver/ChangeLog       |   11 +++++++++++
+ gdb/gdbserver/linux-arm-low.c |    2 +-
+ gdb/gdbserver/linux-low.c     |   10 +++++-----
+ gdb/gdbserver/linux-low.h     |    5 ++---
+ gdb/gdbserver/linux-x86-low.c |    4 ++--
+ gdb/ia64-linux-nat.c          |    2 +-
+ gdb/linux-nat.c               |   16 ++++++++--------
+ gdb/linux-nat.h               |    6 +++---
+ gdb/ppc-linux-nat.c           |    2 +-
+ gdb/procfs.c                  |    2 +-
+ 13 files changed, 53 insertions(+), 28 deletions(-)
+
+diff --git a/gdb/amd64-linux-nat.c b/gdb/amd64-linux-nat.c
+index f954483..5ebba3a 100644
+--- a/gdb/amd64-linux-nat.c
++++ b/gdb/amd64-linux-nat.c
+@@ -731,13 +731,13 @@ siginfo_from_compat_siginfo (siginfo_t *to, compat_siginfo_t *from)
+    INF.  */
+ 
+ static int
+-amd64_linux_siginfo_fixup (struct siginfo *native, gdb_byte *inf, int direction)
++amd64_linux_siginfo_fixup (siginfo_t *native, gdb_byte *inf, int direction)
+ {
+   /* Is the inferior 32-bit?  If so, then do fixup the siginfo
+      object.  */
+   if (gdbarch_addr_bit (get_frame_arch (get_current_frame ())) == 32)
+     {
+-      gdb_assert (sizeof (struct siginfo) == sizeof (compat_siginfo_t));
++      gdb_assert (sizeof (siginfo_t) == sizeof (compat_siginfo_t));
+ 
+       if (direction == 0)
+ 	compat_siginfo_from_siginfo ((struct compat_siginfo *) inf, native);
+diff --git a/gdb/arm-linux-nat.c b/gdb/arm-linux-nat.c
+index c5ce21c..f9f6ba5 100644
+--- a/gdb/arm-linux-nat.c
++++ b/gdb/arm-linux-nat.c
+@@ -1137,7 +1137,7 @@ arm_linux_remove_watchpoint (CORE_ADDR addr, int len, int rw,
+ static int
+ arm_linux_stopped_data_address (struct target_ops *target, CORE_ADDR *addr_p)
+ {
+-  struct siginfo *siginfo_p = linux_nat_get_siginfo (inferior_ptid);
++  siginfo_t *siginfo_p = linux_nat_get_siginfo (inferior_ptid);
+   int slot = siginfo_p->si_errno;
+ 
+   /* This must be a hardware breakpoint.  */
+diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
+index ff2437d..01208ef 100644
+--- a/gdb/gdbserver/linux-arm-low.c
++++ b/gdb/gdbserver/linux-arm-low.c
+@@ -631,7 +631,7 @@ static int
+ arm_stopped_by_watchpoint (void)
+ {
+   struct lwp_info *lwp = get_thread_lwp (current_inferior);
+-  struct siginfo siginfo;
++  siginfo_t siginfo;
+ 
+   /* We must be able to set hardware watchpoints.  */
+   if (arm_linux_get_hw_watchpoint_count () == 0)
+diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
+index d2d4c1d..4734f15 100644
+--- a/gdb/gdbserver/linux-low.c
++++ b/gdb/gdbserver/linux-low.c
+@@ -4779,7 +4779,7 @@ linux_qxfer_osdata (const char *annex,
+    layout of the inferiors' architecture.  */
+ 
+ static void
+-siginfo_fixup (struct siginfo *siginfo, void *inf_siginfo, int direction)
++siginfo_fixup (siginfo_t *siginfo, void *inf_siginfo, int direction)
+ {
+   int done = 0;
+ 
+@@ -4791,9 +4791,9 @@ siginfo_fixup (struct siginfo *siginfo, void *inf_siginfo, int direction)
+   if (!done)
+     {
+       if (direction == 1)
+-	memcpy (siginfo, inf_siginfo, sizeof (struct siginfo));
++	memcpy (siginfo, inf_siginfo, sizeof (siginfo_t));
+       else
+-	memcpy (inf_siginfo, siginfo, sizeof (struct siginfo));
++	memcpy (inf_siginfo, siginfo, sizeof (siginfo_t));
+     }
+ }
+ 
+@@ -4802,8 +4802,8 @@ linux_xfer_siginfo (const char *annex, unsigned char *readbuf,
+ 		    unsigned const char *writebuf, CORE_ADDR offset, int len)
+ {
+   int pid;
+-  struct siginfo siginfo;
+-  char inf_siginfo[sizeof (struct siginfo)];
++  siginfo_t siginfo;
++  char inf_siginfo[sizeof (siginfo_t)];
+ 
+   if (current_inferior == NULL)
+     return -1;
+diff --git a/gdb/gdbserver/linux-low.h b/gdb/gdbserver/linux-low.h
+index 677d261..3aeae70 100644
+--- a/gdb/gdbserver/linux-low.h
++++ b/gdb/gdbserver/linux-low.h
+@@ -20,6 +20,7 @@
+ #ifdef HAVE_THREAD_DB_H
+ #include <thread_db.h>
+ #endif
++#include <signal.h>
+ 
+ #include "gdb_proc_service.h"
+ 
+@@ -46,8 +47,6 @@ struct regset_info
+ extern struct regset_info target_regsets[];
+ #endif
+ 
+-struct siginfo;
+-
+ struct process_info_private
+ {
+   /* Arch-specific additions.  */
+@@ -109,7 +108,7 @@ struct linux_target_ops
+      Returns true if any conversion was done; false otherwise.
+      If DIRECTION is 1, then copy from INF to NATIVE.
+      If DIRECTION is 0, copy from NATIVE to INF.  */
+-  int (*siginfo_fixup) (struct siginfo *native, void *inf, int direction);
++  int (*siginfo_fixup) (siginfo_t *native, void *inf, int direction);
+ 
+   /* Hook to call when a new process is created or attached to.
+      If extra per-process architecture-specific data is needed,
+diff --git a/gdb/gdbserver/linux-x86-low.c b/gdb/gdbserver/linux-x86-low.c
+index ed1f8a8..b466b5d 100644
+--- a/gdb/gdbserver/linux-x86-low.c
++++ b/gdb/gdbserver/linux-x86-low.c
+@@ -918,13 +918,13 @@ siginfo_from_compat_siginfo (siginfo_t *to, compat_siginfo_t *from)
+    INF.  */
+ 
+ static int
+-x86_siginfo_fixup (struct siginfo *native, void *inf, int direction)
++x86_siginfo_fixup (siginfo_t *native, void *inf, int direction)
+ {
+ #ifdef __x86_64__
+   /* Is the inferior 32-bit?  If so, then fixup the siginfo object.  */
+   if (register_size (0) == 4)
+     {
+-      if (sizeof (struct siginfo) != sizeof (compat_siginfo_t))
++      if (sizeof (siginfo_t) != sizeof (compat_siginfo_t))
+ 	fatal ("unexpected difference in siginfo");
+ 
+       if (direction == 0)
+diff --git a/gdb/ia64-linux-nat.c b/gdb/ia64-linux-nat.c
+index 8773195..19b827f 100644
+--- a/gdb/ia64-linux-nat.c
++++ b/gdb/ia64-linux-nat.c
+@@ -637,7 +637,7 @@ static int
+ ia64_linux_stopped_data_address (struct target_ops *ops, CORE_ADDR *addr_p)
+ {
+   CORE_ADDR psr;
+-  struct siginfo *siginfo_p;
++  siginfo_t *siginfo_p;
+   struct regcache *regcache = get_current_regcache ();
+ 
+   siginfo_p = linux_nat_get_siginfo (inferior_ptid);
+diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
+index f80c0c1..d81d55e 100644
+--- a/gdb/linux-nat.c
++++ b/gdb/linux-nat.c
+@@ -188,7 +188,7 @@ static void (*linux_nat_prepare_to_resume) (struct lwp_info *);
+ /* The method to call, if any, when the siginfo object needs to be
+    converted between the layout returned by ptrace, and the layout in
+    the architecture of the inferior.  */
+-static int (*linux_nat_siginfo_fixup) (struct siginfo *,
++static int (*linux_nat_siginfo_fixup) (siginfo_t *,
+ 				       gdb_byte *,
+ 				       int);
+ 
+@@ -4232,7 +4232,7 @@ linux_nat_mourn_inferior (struct target_ops *ops)
+    layout of the inferiors' architecture.  */
+ 
+ static void
+-siginfo_fixup (struct siginfo *siginfo, gdb_byte *inf_siginfo, int direction)
++siginfo_fixup (siginfo_t *siginfo, gdb_byte *inf_siginfo, int direction)
+ {
+   int done = 0;
+ 
+@@ -4244,9 +4244,9 @@ siginfo_fixup (struct siginfo *siginfo, gdb_byte *inf_siginfo, int direction)
+   if (!done)
+     {
+       if (direction == 1)
+-	memcpy (siginfo, inf_siginfo, sizeof (struct siginfo));
++	memcpy (siginfo, inf_siginfo, sizeof (siginfo_t));
+       else
+-	memcpy (inf_siginfo, siginfo, sizeof (struct siginfo));
++	memcpy (inf_siginfo, siginfo, sizeof (siginfo_t));
+     }
+ }
+ 
+@@ -4256,8 +4256,8 @@ linux_xfer_siginfo (struct target_ops *ops, enum target_object object,
+ 		    const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
+ {
+   int pid;
+-  struct siginfo siginfo;
+-  gdb_byte inf_siginfo[sizeof (struct siginfo)];
++  siginfo_t siginfo;
++  gdb_byte inf_siginfo[sizeof (siginfo_t)];
+ 
+   gdb_assert (object == TARGET_OBJECT_SIGNAL_INFO);
+   gdb_assert (readbuf || writebuf);
+@@ -5266,7 +5266,7 @@ linux_nat_set_new_thread (struct target_ops *t,
+    inferior.  */
+ void
+ linux_nat_set_siginfo_fixup (struct target_ops *t,
+-			     int (*siginfo_fixup) (struct siginfo *,
++			     int (*siginfo_fixup) (siginfo_t *,
+ 						   gdb_byte *,
+ 						   int))
+ {
+@@ -5285,7 +5285,7 @@ linux_nat_set_prepare_to_resume (struct target_ops *t,
+ }
+ 
+ /* Return the saved siginfo associated with PTID.  */
+-struct siginfo *
++siginfo_t *
+ linux_nat_get_siginfo (ptid_t ptid)
+ {
+   struct lwp_info *lp = find_lwp_pid (ptid);
+diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
+index c9878d9..d87f0cf 100644
+--- a/gdb/linux-nat.h
++++ b/gdb/linux-nat.h
+@@ -78,7 +78,7 @@ struct lwp_info
+ 
+   /* Non-zero si_signo if this LWP stopped with a trap.  si_addr may
+      be the address of a hardware watchpoint.  */
+-  struct siginfo siginfo;
++  siginfo_t siginfo;
+ 
+   /* STOPPED_BY_WATCHPOINT is non-zero if this LWP stopped with a data
+      watchpoint trap.  */
+@@ -184,7 +184,7 @@ void linux_nat_set_new_thread (struct target_ops *, void (*) (struct lwp_info *)
+    that ptrace returns, and the layout in the architecture of the
+    inferior.  */
+ void linux_nat_set_siginfo_fixup (struct target_ops *,
+-				  int (*) (struct siginfo *,
++				  int (*) (siginfo_t *,
+ 					   gdb_byte *,
+ 					   int));
+ 
+@@ -198,7 +198,7 @@ void linux_nat_set_prepare_to_resume (struct target_ops *,
+ void linux_nat_switch_fork (ptid_t new_ptid);
+ 
+ /* Return the saved siginfo associated with PTID.  */
+-struct siginfo *linux_nat_get_siginfo (ptid_t ptid);
++siginfo_t *linux_nat_get_siginfo (ptid_t ptid);
+ 
+ /* Compute and return the processor core of a given thread.  */
+ int linux_nat_core_of_thread_1 (ptid_t ptid);
+diff --git a/gdb/ppc-linux-nat.c b/gdb/ppc-linux-nat.c
+index 1bd157b..9bd11fd 100644
+--- a/gdb/ppc-linux-nat.c
++++ b/gdb/ppc-linux-nat.c
+@@ -2218,7 +2218,7 @@ ppc_linux_thread_exit (struct thread_info *tp, int silent)
+ static int
+ ppc_linux_stopped_data_address (struct target_ops *target, CORE_ADDR *addr_p)
+ {
+-  struct siginfo *siginfo_p;
++  siginfo_t *siginfo_p;
+ 
+   siginfo_p = linux_nat_get_siginfo (inferior_ptid);
+ 
+diff --git a/gdb/procfs.c b/gdb/procfs.c
+index 903621d..cb4bc7c 100644
+--- a/gdb/procfs.c
++++ b/gdb/procfs.c
+@@ -266,7 +266,7 @@ typedef struct sigaction gdb_sigaction_t;
+ #ifdef HAVE_PR_SIGINFO64_T
+ typedef pr_siginfo64_t gdb_siginfo_t;
+ #else
+-typedef struct siginfo gdb_siginfo_t;
++typedef siginfo_t gdb_siginfo_t;
+ #endif
+ 
+ /* On mips-irix, praddset and prdelset are defined in such a way that
+-- 
+1.7.9.7
+
diff --git a/misc/buildroot/toolchain/gdb/7.4.1/05_all_readline-headers.patch b/misc/buildroot/toolchain/gdb/7.4.1/05_all_readline-headers.patch
new file mode 100644
index 000000000..e65adf6e6
--- /dev/null
+++ b/misc/buildroot/toolchain/gdb/7.4.1/05_all_readline-headers.patch
@@ -0,0 +1,42 @@
+--- a/readline/complete.c
++++ b/readline/complete.c
+@@ -25,6 +25,11 @@
+ #  include <config.h>
+ #endif
+ 
++#ifdef HAVE_WCHAR_H /* wcwidth() */
++# define _GNU_SOURCE
++# include <wchar.h>
++#endif
++
+ #include <sys/types.h>
+ #include <fcntl.h>
+ #if defined (HAVE_SYS_FILE_H)
+--- a/readline/display.c
++++ b/readline/display.c
+@@ -25,6 +25,11 @@
+ #  include <config.h>
+ #endif
+ 
++#ifdef HAVE_WCHAR_H /* wcwidth() */
++# define _GNU_SOURCE
++# include <wchar.h>
++#endif
++
+ #include <sys/types.h>
+ 
+ #if defined (HAVE_UNISTD_H)
+--- a/readline/mbutil.c
++++ b/readline/mbutil.c
+@@ -25,6 +25,11 @@
+ #  include <config.h>
+ #endif
+ 
++#ifdef HAVE_WCHAR_H /* wcwidth() */
++# define _GNU_SOURCE
++# include <wchar.h>
++#endif
++
+ #include <sys/types.h>
+ #include <fcntl.h>
+ #include "posixjmp.h"
diff --git a/misc/buildroot/toolchain/gdb/7.4.1/xtensa-asm-ptrace-h.patch b/misc/buildroot/toolchain/gdb/7.4.1/xtensa-asm-ptrace-h.patch
new file mode 100644
index 000000000..3d1b07c99
--- /dev/null
+++ b/misc/buildroot/toolchain/gdb/7.4.1/xtensa-asm-ptrace-h.patch
@@ -0,0 +1,22 @@
+--- gdb-7.4.1/gdb/xtensa-linux-nat.c.orig	2012-10-19 16:23:06.908165323 -0700
++++ gdb-7.4.1/gdb/xtensa-linux-nat.c	2012-10-19 16:35:30.792134876 -0700
+@@ -36,7 +36,7 @@
+ #include "gdb_wait.h"
+ #include <fcntl.h>
+ #include <sys/procfs.h>
+-#include <sys/ptrace.h>
++#include <asm/ptrace.h>
+ 
+ #include "gregset.h"
+ #include "xtensa-tdep.h"
+--- gdb-7.4.1/gdb/gdbserver/linux-xtensa-low.c.orig	2012-10-19 16:24:06.260162894 -0700
++++ gdb-7.4.1/gdb/gdbserver/linux-xtensa-low.c	2012-10-19 16:36:07.920133357 -0700
+@@ -23,7 +23,7 @@
+ /* Defined in auto-generated file reg-xtensa.c.  */
+ void init_registers_xtensa (void);
+ 
+-#include <sys/ptrace.h>
++#include <asm/ptrace.h>
+ #include <xtensa-config.h>
+ 
+ #include "xtensa-xtregs.c"
diff --git a/misc/buildroot/toolchain/gdb/7.4.1/xtensa-gdb-regsize.patch b/misc/buildroot/toolchain/gdb/7.4.1/xtensa-gdb-regsize.patch
new file mode 100644
index 000000000..e10bb8f3e
--- /dev/null
+++ b/misc/buildroot/toolchain/gdb/7.4.1/xtensa-gdb-regsize.patch
@@ -0,0 +1,19 @@
+--- gdb-7.4.1/gdb/xtensa-tdep.h.orig	2012-10-30 11:40:23.546448594 -0700
++++ gdb-7.4.1/gdb/xtensa-tdep.h	2012-10-30 11:41:43.078445337 -0700
+@@ -17,6 +17,7 @@
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+ 
++#include <stdint.h>
+ 
+ /* XTENSA_TDEP_VERSION can/should be changed along with XTENSA_CONFIG_VERSION
+    whenever the "tdep" structure changes in an incompatible way.  */
+@@ -84,7 +85,7 @@
+ /* Xtensa ELF core file register set representation ('.reg' section).
+    Copied from target-side ELF header <xtensa/elf.h>.  */
+ 
+-typedef unsigned long xtensa_elf_greg_t;
++typedef uint32_t xtensa_elf_greg_t;
+ 
+ typedef struct
+ {
diff --git a/misc/buildroot/toolchain/gdb/Config.in b/misc/buildroot/toolchain/gdb/Config.in
index 1fc1ecd8b..4212ca727 100644
--- a/misc/buildroot/toolchain/gdb/Config.in
+++ b/misc/buildroot/toolchain/gdb/Config.in
@@ -40,8 +40,8 @@ choice
 		bool "gdb 6.8"
 		depends on !BR2_avr32
 
-	config BR2_GDB_VERSION_7_4
-		bool "gdb 7.4"
+	config BR2_GDB_VERSION_7_4_1
+		bool "gdb 7.4.1"
 		depends on !BR2_bfin
 
 endchoice
@@ -49,5 +49,6 @@ endchoice
 config BR2_GDB_VERSION
 	string
 	default "6.3"      if BR2_GDB_VERSION_6_3
+	default "6.4"      if BR2_GDB_VERSION_6_4
 	default "6.8"      if BR2_GDB_VERSION_6_8
-	default "7.4.1"    if BR2_GDB_VERSION_7_4
+	default "7.4.1"    if BR2_GDB_VERSION_7_4_1