Add gcc 4.5-linaro temporarily back as 4.6-linaro has issues with usb driver.

Signed-off-by: Roman Yeryomin <romans.jerjomins@saftehnika.com>

22 files changed, 1340 insertions, 0 deletions

diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index f87d62792..7979e9857 100644
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -20,6 +20,9 @@ choice
 		select GCC_VERSION_4_8_0
 		bool "gcc 4.8.0"
 
+	config GCC_VERSION_4_5_LINARO
+		bool "gcc 4.5.x with Linaro enhancements"
+
 	config GCC_USE_VERSION_4_6_LINARO
 		select GCC_VERSION_4_6_LINARO
 		bool "gcc 4.6.x with Linaro enhancements"
diff --git a/toolchain/gcc/Config.version b/toolchain/gcc/Config.version
index 167da7616..7f36ad583 100644
--- a/toolchain/gcc/Config.version
+++ b/toolchain/gcc/Config.version
@@ -20,6 +20,7 @@ config GCC_VERSION
 	default "4.4.7"	    if GCC_VERSION_4_4_7
 	default "4.6.3"	    if GCC_VERSION_4_6_3
 	default "4.8.0"	    if GCC_VERSION_4_8_0
+	default "4.5-linaro"    if GCC_VERSION_4_5_LINARO
 	default "4.6-linaro"    if GCC_VERSION_4_6_LINARO
 	default "4.8-linaro"    if GCC_VERSION_4_8_LINARO
 	default "4.6-linaro"
@@ -28,6 +29,10 @@ config GCC_VERSION_4_4
 	bool
 	default y	if GCC_VERSION_4_4_7
 
+config GCC_VERSION_4_5
+	bool
+	default y       if GCC_VERSION_4_5_LINARO
+
 config GCC_VERSION_4_6
 	bool
 	default y       if (GCC_VERSION_4_6_3 || GCC_VERSION_4_6_LINARO)
diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
index 9544133bd..0c99abfbd 100644
--- a/toolchain/gcc/common.mk
+++ b/toolchain/gcc/common.mk
@@ -26,6 +26,12 @@ PKG_VERSION:=$(firstword $(subst +, ,$(GCC_VERSION)))
 GCC_DIR:=$(PKG_NAME)-$(PKG_VERSION)
 
 ifeq ($(findstring linaro, $(CONFIG_GCC_VERSION)),linaro)
+    ifeq ($(CONFIG_GCC_VERSION),"4.5-linaro")
+      PKG_REV:=4.5-2012.03
+      PKG_VERSION:=4.5.4
+      PKG_VERSION_MAJOR:=4.5
+      PKG_MD5SUM:=0c25f93e15e362e352c933e4649a7fc6
+    endif
     ifeq ($(CONFIG_GCC_VERSION),"4.6-linaro")
       PKG_REV:=4.6-2012.12
       PKG_VERSION:=4.6.4
diff --git a/toolchain/gcc/patches/4.5-linaro/010-documentation.patch b/toolchain/gcc/patches/4.5-linaro/010-documentation.patch
new file mode 100644
index 000000000..4d5e275f5
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/010-documentation.patch
@@ -0,0 +1,23 @@
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -4040,18 +4040,10 @@
+ doc/gccint.info: $(TEXI_GCCINT_FILES)
+ doc/cppinternals.info: $(TEXI_CPPINT_FILES)
+ 
+-doc/%.info: %.texi
+-	if [ x$(BUILD_INFO) = xinfo ]; then \
+-		$(MAKEINFO) $(MAKEINFOFLAGS) -I . -I $(gcc_docdir) \
+-			-I $(gcc_docdir)/include -o $@ $<; \
+-	fi
++doc/%.info:
+ 
+ # Duplicate entry to handle renaming of gccinstall.info
+-doc/gccinstall.info: $(TEXI_GCCINSTALL_FILES)
+-	if [ x$(BUILD_INFO) = xinfo ]; then \
+-		$(MAKEINFO) $(MAKEINFOFLAGS) -I $(gcc_docdir) \
+-			-I $(gcc_docdir)/include -o $@ $<; \
+-	fi
++doc/gccinstall.info:
+ 
+ doc/cpp.dvi: $(TEXI_CPP_FILES)
+ doc/gcc.dvi: $(TEXI_GCC_FILES)
diff --git a/toolchain/gcc/patches/4.5-linaro/100-uclibc-conf.patch b/toolchain/gcc/patches/4.5-linaro/100-uclibc-conf.patch
new file mode 100644
index 000000000..5c77de9b4
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/100-uclibc-conf.patch
@@ -0,0 +1,33 @@
+--- a/contrib/regression/objs-gcc.sh
++++ b/contrib/regression/objs-gcc.sh
+@@ -106,6 +106,10 @@ if [ $H_REAL_TARGET = $H_REAL_HOST -a $H
+  then
+   make all-gdb all-dejagnu all-ld || exit 1
+   make install-gdb install-dejagnu install-ld || exit 1
++elif [ $H_REAL_TARGET = $H_REAL_HOST -a $H_REAL_TARGET = i686-pc-linux-uclibc ]
++ then
++  make all-gdb all-dejagnu all-ld || exit 1
++  make install-gdb install-dejagnu install-ld || exit 1
+ elif [ $H_REAL_TARGET = $H_REAL_HOST ] ; then
+   make bootstrap || exit 1
+   make install || exit 1
+--- a/libjava/classpath/ltconfig
++++ b/libjava/classpath/ltconfig
+@@ -603,7 +603,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-
+ 
+ # Transform linux* to *-*-linux-gnu*, to support old configure scripts.
+ case $host_os in
+-linux-gnu*) ;;
++linux-gnu*|linux-uclibc*) ;;
+ linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
+ esac
+ 
+@@ -1251,7 +1251,7 @@ linux-gnuoldld* | linux-gnuaout* | linux
+   ;;
+ 
+ # This must be Linux ELF.
+-linux-gnu*)
++linux*)
+   version_type=linux
+   need_lib_prefix=no
+   need_version=no
diff --git a/toolchain/gcc/patches/4.5-linaro/200-musl.patch b/toolchain/gcc/patches/4.5-linaro/200-musl.patch
new file mode 100644
index 000000000..d68f67241
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/200-musl.patch
@@ -0,0 +1,222 @@
+--- a/config.sub
++++ b/config.sub
+@@ -125,6 +125,7 @@ esac
+ maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+ case $maybe_os in
+   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
++  linux-musl* | \
+   linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+   knetbsd*-gnu* | netbsd*-gnu* | \
+   kopensolaris*-gnu* | \
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -63,6 +63,10 @@
+ #undef  GLIBC_DYNAMIC_LINKER
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
+ 
++/* musl has no "classic" (i.e. broken) mode */
++#undef  MUSL_DYNAMIC_LINKER
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-arm.so.1"
++
+ /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
+    use the GNU/Linux version, not the generic BPABI version.  */
+ #undef  LINK_SPEC
+--- a/gcc/config/i386/linux.h
++++ b/gcc/config/i386/linux.h
+@@ -101,6 +101,7 @@ along with GCC; see the file COPYING3.
+ /* These macros may be overridden in k*bsd-gnu.h and i386/k*bsd-gnu.h. */
+ #define LINK_EMULATION "elf_i386"
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
+ 
+ #undef  ASM_SPEC
+ #define ASM_SPEC \
+--- a/gcc/config/i386/linux64.h
++++ b/gcc/config/i386/linux64.h
+@@ -61,6 +61,9 @@ see the files COPYING3 and COPYING.RUNTI
+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
+ 
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
++
+ #if TARGET_64BIT_DEFAULT
+ #define SPEC_32 "m32"
+ #define SPEC_64 "!m32"
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -86,6 +86,7 @@ see the files COPYING3 and COPYING.RUNTI
+ #define OPTION_GLIBC  (linux_libc == LIBC_GLIBC)
+ #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+ #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
++#define OPTION_MUSL   (linux_libc == LIBC_MUSL)
+ 
+ #define LINUX_TARGET_OS_CPP_BUILTINS()				\
+     do {							\
+@@ -120,18 +121,21 @@ see the files COPYING3 and COPYING.RUNTI
+    uClibc or Bionic is the default C library and whether
+    -muclibc or -mglibc or -mbionic has been passed to change the default.  */
+ 
+-#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LD1, LD2, LD3)	\
+-  "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:" LD1 "}}"
++#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LIBC4, LD1, LD2, LD3, LD4)	\
++  "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:%{" LIBC4 ":" LD4 ";:" LD1 "}}}"
+ 
+ #if DEFAULT_LIBC == LIBC_GLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+-  CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", G, U, B)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++  CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", "mmusl", G, U, B, M)
+ #elif DEFAULT_LIBC == LIBC_UCLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+-  CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", U, G, B)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++  CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", "mmusl", U, G, B, M)
+ #elif DEFAULT_LIBC == LIBC_BIONIC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+-  CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", B, G, U)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++  CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", "mmusl", B, G, U, M)
++#elif DEFAULT_LIBC == LIBC_MUSL
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++  CHOOSE_DYNAMIC_LINKER1 ("mmusl", "mglibc", "muclibc", "mbionic", M, G, U, B)
+ #else
+ #error "Unsupported DEFAULT_LIBC"
+ #endif /* DEFAULT_LIBC */
+@@ -149,13 +153,13 @@ see the files COPYING3 and COPYING.RUNTI
+ 
+ #define LINUX_DYNAMIC_LINKER						\
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,	\
+-			 BIONIC_DYNAMIC_LINKER)
++			 BIONIC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
+ #define LINUX_DYNAMIC_LINKER32						\
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \
+-			 BIONIC_DYNAMIC_LINKER32)
++			 BIONIC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
+ #define LINUX_DYNAMIC_LINKER64						\
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \
+-			 BIONIC_DYNAMIC_LINKER64)
++			 BIONIC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
+ 
+ /* Determine whether the entire c99 runtime
+    is present in the runtime library.  */
+--- a/gcc/config/linux.opt
++++ b/gcc/config/linux.opt
+@@ -30,3 +30,7 @@ Use GNU C library
+ muclibc
+ Target Report RejectNegative Var(linux_libc,LIBC_UCLIBC) VarExists Negative(mbionic)
+ Use uClibc C library
++
++mmusl
++Target Report RejectNegative Var(linux_libc,LIBC_MUSL) Negative(mglibc)
++Use musl C library
+--- a/gcc/config/mips/linux.h
++++ b/gcc/config/mips/linux.h
+@@ -66,6 +66,8 @@ along with GCC; see the file COPYING3.
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+ 
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips.so.1"
++
+ /* Borrowed from sparc/linux.h */
+ #undef LINK_SPEC
+ #define LINK_SPEC \
+--- a/gcc/config/mips/linux64.h
++++ b/gcc/config/mips/linux64.h
+@@ -39,8 +39,11 @@ along with GCC; see the file COPYING3.
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld.so.1"
+ #define GLIBC_DYNAMIC_LINKERN32 "/lib32/ld.so.1"
+ #define UCLIBC_DYNAMIC_LINKERN32 "/lib32/ld-uClibc.so.0"
++#define MUSL_DYNAMIC_LINKERN32 "/lib32/ld-musl-mips.so.1"
++#define MUSL_DYNAMIC_LINKER32 "/lib32/ld-musl-mips.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib64/ld-musl-mips.so.1"
+ #define LINUX_DYNAMIC_LINKERN32 \
+-  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32)
++  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32)
+ 
+ #undef LINK_SPEC
+ #define LINK_SPEC "\
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -514,7 +514,7 @@ case ${target} in
+       tmake_file="$tmake_file t-gnu";;
+   esac
+   # Common C libraries.
+-  tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3"
++  tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4"
+   # glibc / uclibc / bionic switch.
+   # uclibc and bionic aren't usable for GNU/Hurd and neither for GNU/k*BSD.
+   case $target in
+@@ -530,6 +530,9 @@ case ${target} in
+     *-*-*uclibc*)
+       tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
+       ;;
++    *-*-*musl*)
++      tm_defines="$tm_defines DEFAULT_LIBC=LIBC_MUSL"
++      ;;
+     *)
+       tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
+       ;;
+--- a/gcc/ginclude/stddef.h
++++ b/gcc/ginclude/stddef.h
+@@ -183,6 +183,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
+ #ifndef _GCC_SIZE_T
+ #ifndef _SIZET_
+ #ifndef __size_t
++#ifndef __DEFINED_size_t /* musl */
+ #define __size_t__	/* BeOS */
+ #define __SIZE_T__	/* Cray Unicos/Mk */
+ #define _SIZE_T
+@@ -199,6 +200,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
+ #define ___int_size_t_h
+ #define _GCC_SIZE_T
+ #define _SIZET_
++#define __DEFINED_size_t /* musl */
+ #if defined (__FreeBSD__) && (__FreeBSD__ >= 5)
+ /* __size_t is a typedef on FreeBSD 5!, must not trash it. */
+ #else
+@@ -213,6 +215,7 @@ typedef __SIZE_TYPE__ size_t;
+ typedef long ssize_t;
+ #endif /* __BEOS__ */
+ #endif /* !(defined (__GNUG__) && defined (size_t)) */
++#endif /* __DEFINED_size_t */
+ #endif /* __size_t */
+ #endif /* _SIZET_ */
+ #endif /* _GCC_SIZE_T */
+--- a/libgomp/config/posix/time.c
++++ b/libgomp/config/posix/time.c
+@@ -28,6 +28,8 @@
+    The following implementation uses the most simple POSIX routines.
+    If present, POSIX 4 clocks should be used instead.  */
+ 
++#define _POSIX_C_SOURCE 199309L /* for clocks */
++
+ #include "libgomp.h"
+ #include <unistd.h>
+ #if TIME_WITH_SYS_TIME
+--- a/libstdc++-v3/configure.host
++++ b/libstdc++-v3/configure.host
+@@ -236,6 +236,13 @@ case "${host_os}" in
+     os_include_dir="os/bsd/freebsd"
+     ;;
+   gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
++    # check for musl by target
++    case "${host_os}" in
++      *-musl*)
++        os_include_dir="os/generic"
++        ;;
++      *)
++
+     if [ "$uclibc" = "yes" ]; then
+       os_include_dir="os/uclibc"
+     elif [ "$bionic" = "yes" ]; then
+@@ -244,6 +251,9 @@ case "${host_os}" in
+       os_include_dir="os/gnu-linux"
+     fi
+     ;;
++
++    esac
++    ;;
+   hpux*)
+     os_include_dir="os/hpux"
+     ;;
diff --git a/toolchain/gcc/patches/4.5-linaro/200-ppc_include_config_linux_h.patch b/toolchain/gcc/patches/4.5-linaro/200-ppc_include_config_linux_h.patch
new file mode 100644
index 000000000..f5580356a
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/200-ppc_include_config_linux_h.patch
@@ -0,0 +1,11 @@
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2031,7 +2031,7 @@ powerpc-*-rtems*)
+ 	tmake_file="rs6000/t-fprules rs6000/t-fprules-fpbit rs6000/t-rtems t-rtems rs6000/t-ppccomm"
+ 	;;
+ powerpc-*-linux* | powerpc64-*-linux*)
+-	tm_file="${tm_file} dbxelf.h elfos.h linux.h freebsd-spec.h rs6000/sysv4.h"
++	tm_file="${tm_file} dbxelf.h elfos.h svr4.h linux.h freebsd-spec.h rs6000/sysv4.h"
+ 	extra_options="${extra_options} rs6000/sysv4.opt"
+ 	tmake_file="t-dfprules rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
+ 	maybe_biarch=yes
diff --git a/toolchain/gcc/patches/4.5-linaro/301-missing-execinfo_h.patch b/toolchain/gcc/patches/4.5-linaro/301-missing-execinfo_h.patch
new file mode 100644
index 000000000..b3f1e68d3
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/301-missing-execinfo_h.patch
@@ -0,0 +1,11 @@
+--- a/boehm-gc/include/gc.h
++++ b/boehm-gc/include/gc.h
+@@ -503,7 +503,7 @@ GC_API GC_PTR GC_malloc_atomic_ignore_of
+ #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
diff --git a/toolchain/gcc/patches/4.5-linaro/302-c99-snprintf.patch b/toolchain/gcc/patches/4.5-linaro/302-c99-snprintf.patch
new file mode 100644
index 000000000..ddbe43d81
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/302-c99-snprintf.patch
@@ -0,0 +1,11 @@
+--- a/libstdc++-v3/include/c_global/cstdio
++++ b/libstdc++-v3/include/c_global/cstdio
+@@ -139,7 +139,7 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
+ 
+ _GLIBCXX_END_NAMESPACE
+ 
+-#if _GLIBCXX_USE_C99
++#if _GLIBCXX_USE_C99 || defined __UCLIBC__
+ 
+ #undef snprintf
+ #undef vfscanf
diff --git a/toolchain/gcc/patches/4.5-linaro/305-libmudflap-susv3-legacy.patch b/toolchain/gcc/patches/4.5-linaro/305-libmudflap-susv3-legacy.patch
new file mode 100644
index 000000000..8e2d15f81
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/305-libmudflap-susv3-legacy.patch
@@ -0,0 +1,47 @@
+--- a/libmudflap/mf-hooks2.c
++++ b/libmudflap/mf-hooks2.c
+@@ -421,7 +421,7 @@ WRAPPER2(void, bzero, void *s, size_t n)
+ {
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
+-  bzero (s, n);
++  memset (s, 0, n);
+ }
+ 
+ 
+@@ -431,7 +431,7 @@ WRAPPER2(void, bcopy, const void *src, v
+   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);
+ }
+ 
+ 
+@@ -441,7 +441,7 @@ WRAPPER2(int, bcmp, const void *s1, cons
+   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);
+ }
+ 
+ 
+@@ -450,7 +450,7 @@ WRAPPER2(char *, index, const char *s, i
+   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);
+ }
+ 
+ 
+@@ -459,7 +459,7 @@ WRAPPER2(char *, rindex, const char *s,
+   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/toolchain/gcc/patches/4.5-linaro/810-arm-softfloat-libgcc.patch b/toolchain/gcc/patches/4.5-linaro/810-arm-softfloat-libgcc.patch
new file mode 100644
index 000000000..60cfde407
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/810-arm-softfloat-libgcc.patch
@@ -0,0 +1,26 @@
+--- 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 "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
++#define LIBGCC_SPEC "-lgcc"
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
+--- a/gcc/config/arm/t-linux
++++ b/gcc/config/arm/t-linux
+@@ -23,7 +23,11 @@ TARGET_LIBGCC2_CFLAGS = -fomit-frame-poi
+ 
+ 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
diff --git a/toolchain/gcc/patches/4.5-linaro/820-libgcc_pic.patch b/toolchain/gcc/patches/4.5-linaro/820-libgcc_pic.patch
new file mode 100644
index 000000000..7cde82acc
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/820-libgcc_pic.patch
@@ -0,0 +1,36 @@
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -746,11 +746,12 @@ $(libgcov-objects): %$(objext): $(gcc_sr
+ 
+ # Static libraries.
+ libgcc.a: $(libgcc-objects)
++libgcc_pic.a: $(libgcc-s-objects)
+ libgcov.a: $(libgcov-objects)
+ libunwind.a: $(libunwind-objects)
+ libgcc_eh.a: $(libgcc-eh-objects)
+ 
+-libgcc.a libgcov.a libunwind.a libgcc_eh.a:
++libgcc.a libgcov.a libunwind.a libgcc_eh.a libgcc_pic.a:
+ 	-rm -f $@
+ 
+ 	objects="$(objects)";					\
+@@ -772,7 +773,7 @@ libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_E
+ endif
+ 
+ ifeq ($(enable_shared),yes)
+-all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
++all: libgcc_eh.a libgcc_pic.a libgcc_s$(SHLIB_EXT)
+ ifneq ($(LIBUNWIND),)
+ all: libunwind$(SHLIB_EXT)
+ endif
+@@ -945,6 +946,10 @@ install-shared:
+ 	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+ 	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+ 
++	$(INSTALL_DATA) libgcc_pic.a $(mapfile) $(DESTDIR)$(inst_libdir)/
++	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_pic.a
++	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_pic.a
++
+ 	$(subst @multilib_dir@,$(MULTIDIR),$(subst \
+ 		@shlib_base_name@,libgcc_s,$(subst \
+ 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
diff --git a/toolchain/gcc/patches/4.5-linaro/830-arm_unbreak_armv4t.patch b/toolchain/gcc/patches/4.5-linaro/830-arm_unbreak_armv4t.patch
new file mode 100644
index 000000000..0788b63ae
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/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
+@@ -44,7 +44,7 @@
+    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/toolchain/gcc/patches/4.5-linaro/840-armv4_pass_fix-v4bx_to_ld.patch b/toolchain/gcc/patches/4.5-linaro/840-armv4_pass_fix-v4bx_to_ld.patch
new file mode 100644
index 000000000..97ef38590
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/840-armv4_pass_fix-v4bx_to_ld.patch
@@ -0,0 +1,18 @@
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -67,10 +67,14 @@
+ #undef  MUSL_DYNAMIC_LINKER
+ #define MUSL_DYNAMIC_LINKER "/lib/ld-musl-arm.so.1"
+ 
++/* For armv4 we pass --fix-v4bx to linker to support EABI */
++#undef TARGET_FIX_V4BX_SPEC
++#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*|march=armv4:--fix-v4bx}"
++
+ /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
+    use the GNU/Linux version, not the generic BPABI version.  */
+ #undef  LINK_SPEC
+-#define LINK_SPEC BE8_LINK_SPEC						\
++#define LINK_SPEC BE8_LINK_SPEC TARGET_FIX_V4BX_SPEC				\
+   LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC,				\
+ 		       LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
+ 
diff --git a/toolchain/gcc/patches/4.5-linaro/850-use_shared_libgcc.patch b/toolchain/gcc/patches/4.5-linaro/850-use_shared_libgcc.patch
new file mode 100644
index 000000000..875287b93
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/850-use_shared_libgcc.patch
@@ -0,0 +1,68 @@
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -99,10 +99,6 @@
+ #define ENDFILE_SPEC \
+   LINUX_OR_ANDROID_LD (LINUX_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
+ 
+-/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
+-   do not use -lfloat.  */
+-#undef LIBGCC_SPEC
+-
+ /* Clear the instruction cache from `beg' to `end'.  This is
+    implemented in lib1funcs.asm, so ensure an error if this definition
+    is used.  */
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -60,8 +60,6 @@
+    %{shared:-lc} \
+    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+ 
+-#define LIBGCC_SPEC "-lgcc"
+-
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
+ #define LINUX_TARGET_LINK_SPEC  "%{h*} %{version:-v} \
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -117,6 +117,10 @@ see the files COPYING3 and COPYING.RUNTI
+ #define USE_LD_AS_NEEDED 1
+ #endif
+ 
++#ifndef LIBGCC_SPEC
++#define LIBGCC_SPEC "%{static|static-libgcc:-lgcc}%{!static:%{!static-libgcc:-lgcc_s}}"
++#endif
++
+ /* Determine which dynamic linker to use depending on whether GLIBC or
+    uClibc or Bionic is the default C library and whether
+    -muclibc or -mglibc or -mbionic has been passed to change the default.  */
+--- a/gcc/mkmap-symver.awk
++++ b/gcc/mkmap-symver.awk
+@@ -132,5 +132,5 @@ function output(lib) {
+   else if (inherit[lib])
+     printf("} %s;\n", inherit[lib]);
+   else
+-    printf ("\n  local:\n\t*;\n};\n");
++    printf ("\n\t*;\n};\n");
+ }
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -265,7 +265,7 @@ ifeq ($(enable_shared),yes)
+ # For -fvisibility=hidden.  We need both a -fvisibility=hidden on
+ # the command line, and a #define to prevent libgcc2.h etc from
+ # overriding that with #pragmas.
+-vis_hide = @vis_hide@
++vis_hide =
+ 
+ ifneq (,$(vis_hide))
+ 
+--- a/gcc/config/rs6000/linux.h
++++ b/gcc/config/rs6000/linux.h
+@@ -85,6 +85,8 @@
+ #define USE_LD_AS_NEEDED 1
+ #endif
+ 
++#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
++
+ #undef  TARGET_VERSION
+ #define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)");
+ 
diff --git a/toolchain/gcc/patches/4.5-linaro/901-lexra.patch b/toolchain/gcc/patches/4.5-linaro/901-lexra.patch
new file mode 100644
index 000000000..7a6f7ba28
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/901-lexra.patch
@@ -0,0 +1,86 @@
+Index: gcc-linaro-4.5-2011.08/gcc/config/mips/mips.c
+===================================================================
+--- gcc-linaro-4.5-2011.08.orig/gcc/config/mips/mips.c
++++ gcc-linaro-4.5-2011.08/gcc/config/mips/mips.c
+@@ -6575,6 +6575,8 @@ mips_block_move_straight (rtx dest, rtx 
+   if (MEM_ALIGN (src) == BITS_PER_WORD / 2
+       && MEM_ALIGN (dest) == BITS_PER_WORD / 2)
+     bits = BITS_PER_WORD / 2;
++  else if (TARGET_LEXRA)
++    bits = MIN (MEM_ALIGN (src), MEM_ALIGN (dest));
+   else
+     bits = BITS_PER_WORD;
+ 
+@@ -6956,6 +6958,8 @@ mips_expand_ext_as_unaligned_load (rtx d
+     }
+   else
+     {
++      if (TARGET_LEXRA)
++       return false;
+       emit_insn (gen_mov_lwl (temp, src, left));
+       emit_insn (gen_mov_lwr (dest, copy_rtx (src), right, temp));
+     }
+@@ -6989,6 +6993,8 @@ mips_expand_ins_as_unaligned_store (rtx 
+     }
+   else
+     {
++      if (TARGET_LEXRA)
++       return false;
+       emit_insn (gen_mov_swl (dest, src, left));
+       emit_insn (gen_mov_swr (copy_rtx (dest), copy_rtx (src), right));
+     }
+Index: gcc-linaro-4.5-2011.08/gcc/config/mips/mips.md
+===================================================================
+--- gcc-linaro-4.5-2011.08.orig/gcc/config/mips/mips.md
++++ gcc-linaro-4.5-2011.08/gcc/config/mips/mips.md
+@@ -3756,7 +3756,7 @@
+ 	(unspec:GPR [(match_operand:BLK 1 "memory_operand" "m")
+ 		     (match_operand:QI 2 "memory_operand" "m")]
+ 		    UNSPEC_LOAD_LEFT))]
+-  "!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
++  "!TARGET_MIPS16 && !TARGET_LEXRA && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
+   "<load>l\t%0,%2"
+   [(set_attr "move_type" "load")
+    (set_attr "mode" "<MODE>")])
+@@ -3767,7 +3767,7 @@
+ 		     (match_operand:QI 2 "memory_operand" "m")
+ 		     (match_operand:GPR 3 "register_operand" "0")]
+ 		    UNSPEC_LOAD_RIGHT))]
+-  "!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
++  "!TARGET_MIPS16 && !TARGET_LEXRA && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
+   "<load>r\t%0,%2"
+   [(set_attr "move_type" "load")
+    (set_attr "mode" "<MODE>")])
+@@ -3777,7 +3777,7 @@
+ 	(unspec:BLK [(match_operand:GPR 1 "reg_or_0_operand" "dJ")
+ 		     (match_operand:QI 2 "memory_operand" "m")]
+ 		    UNSPEC_STORE_LEFT))]
+-  "!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
++  "!TARGET_MIPS16 && !TARGET_LEXRA && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
+   "<store>l\t%z1,%2"
+   [(set_attr "move_type" "store")
+    (set_attr "mode" "<MODE>")])
+@@ -3788,7 +3788,7 @@
+ 		     (match_operand:QI 2 "memory_operand" "m")
+ 		     (match_dup 0)]
+ 		    UNSPEC_STORE_RIGHT))]
+-  "!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
++  "!TARGET_MIPS16 && !TARGET_LEXRA && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
+   "<store>r\t%z1,%2"
+   [(set_attr "move_type" "store")
+    (set_attr "mode" "<MODE>")])
+Index: gcc-linaro-4.5-2011.08/gcc/config/mips/mips.opt
+===================================================================
+--- gcc-linaro-4.5-2011.08.orig/gcc/config/mips/mips.opt
++++ gcc-linaro-4.5-2011.08/gcc/config/mips/mips.opt
+@@ -244,6 +244,10 @@ mpaired-single
+ Target Report Mask(PAIRED_SINGLE_FLOAT)
+ Use paired-single floating-point instructions
+ 
++mlexra
++Target Report Mask(LEXRA)
++Do not use lwl/lwr/swl/swr instructions absent in Lexra chips
++
+ mr10k-cache-barrier=
+ Target Joined RejectNegative
+ -mr10k-cache-barrier=SETTING	Specify when r10k cache barriers should be inserted
diff --git a/toolchain/gcc/patches/4.5-linaro/902-rlx.patch b/toolchain/gcc/patches/4.5-linaro/902-rlx.patch
new file mode 100644
index 000000000..358015bb1
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/902-rlx.patch
@@ -0,0 +1,173 @@
+Index: gcc-linaro-4.5-2011.08/gcc/config/mips/mips.c
+===================================================================
+--- gcc-linaro-4.5-2011.08.orig/gcc/config/mips/mips.c
++++ gcc-linaro-4.5-2011.08/gcc/config/mips/mips.c
+@@ -669,6 +669,12 @@ static const struct mips_cpu_info mips_c
+   { "r3000", PROCESSOR_R3000, 1, 0 },
+   { "r2000", PROCESSOR_R3000, 1, 0 },
+   { "r3900", PROCESSOR_R3900, 1, 0 },
++  { "lx4180", PROCESSOR_LX4180, 1, 0 },
++  { "rlx4181", PROCESSOR_RLX4181, 1, 0 },
++  { "rlx4281", PROCESSOR_RLX4281, 1, 0 },
++  { "rlx5181", PROCESSOR_RLX5181, 1, 0 },
++  { "lx5280", PROCESSOR_LX5280, 1, 0 },
++  { "rlx5281", PROCESSOR_RLX5281, 1, 0 },
+ 
+   /* MIPS II processors.  */
+   { "r6000", PROCESSOR_R6000, 2, 0 },
+@@ -6575,7 +6581,7 @@ mips_block_move_straight (rtx dest, rtx 
+   if (MEM_ALIGN (src) == BITS_PER_WORD / 2
+       && MEM_ALIGN (dest) == BITS_PER_WORD / 2)
+     bits = BITS_PER_WORD / 2;
+-  else if (TARGET_LEXRA)
++  else if (TARGET_LEXRA || TARGET_RLX)
+     bits = MIN (MEM_ALIGN (src), MEM_ALIGN (dest));
+   else
+     bits = BITS_PER_WORD;
+@@ -6958,7 +6964,7 @@ mips_expand_ext_as_unaligned_load (rtx d
+     }
+   else
+     {
+-      if (TARGET_LEXRA)
++      if (TARGET_LEXRA || TARGET_RLX)
+        return false;
+       emit_insn (gen_mov_lwl (temp, src, left));
+       emit_insn (gen_mov_lwr (dest, copy_rtx (src), right, temp));
+@@ -6993,7 +6999,7 @@ mips_expand_ins_as_unaligned_store (rtx 
+     }
+   else
+     {
+-      if (TARGET_LEXRA)
++      if (TARGET_LEXRA || TARGET_RLX)
+        return false;
+       emit_insn (gen_mov_swl (dest, src, left));
+       emit_insn (gen_mov_swr (copy_rtx (dest), copy_rtx (src), right));
+@@ -15281,14 +15287,25 @@ mips_matching_cpu_name_p (const char *ca
+ 
+   /* If not, try comparing based on numerical designation alone.
+      See if GIVEN is an unadorned number, or 'r' followed by a number.  */
+-  if (TOLOWER (*given) == 'r')
++  if (TOLOWER (given[0]) == 'l' && TOLOWER (given[1]) == 'x')
++    given += 2;
++  else if (TOLOWER (given[0]) == 'r' &&
++           TOLOWER (given[1]) == 'l' && TOLOWER (given[2]) == 'x')
++    given += 3;
++  else if (TOLOWER (*given) == 'r')
+     given++;
++
+   if (!ISDIGIT (*given))
+     return false;
+ 
+   /* Skip over some well-known prefixes in the canonical name,
+      hoping to find a number there too.  */
+-  if (TOLOWER (canonical[0]) == 'v' && TOLOWER (canonical[1]) == 'r')
++  if (TOLOWER (canonical[0]) == 'l' && TOLOWER (canonical[1]) == 'x')
++    canonical += 2;
++  else if (TOLOWER (canonical[0]) == 'r' &&
++           TOLOWER (canonical[1]) == 'l' && TOLOWER (canonical[2]) == 'x')
++    canonical += 3;
++  else if (TOLOWER (canonical[0]) == 'v' && TOLOWER (canonical[1]) == 'r')
+     canonical += 2;
+   else if (TOLOWER (canonical[0]) == 'r' && TOLOWER (canonical[1]) == 'm')
+     canonical += 2;
+Index: gcc-linaro-4.5-2011.08/gcc/config/mips/mips.h
+===================================================================
+--- gcc-linaro-4.5-2011.08.orig/gcc/config/mips/mips.h
++++ gcc-linaro-4.5-2011.08/gcc/config/mips/mips.h
+@@ -58,10 +58,16 @@ enum processor_type {
+   PROCESSOR_R4111,
+   PROCESSOR_R4120,
+   PROCESSOR_R4130,
++  PROCESSOR_LX4180,
++  PROCESSOR_RLX4181,
++  PROCESSOR_RLX4281,
+   PROCESSOR_R4300,
+   PROCESSOR_R4600,
+   PROCESSOR_R4650,
+   PROCESSOR_R5000,
++  PROCESSOR_RLX5181,
++  PROCESSOR_LX5280,
++  PROCESSOR_RLX5281,
+   PROCESSOR_R5400,
+   PROCESSOR_R5500,
+   PROCESSOR_R7000,
+@@ -273,6 +279,15 @@ enum mips_code_readable_setting {
+ #define TARGET_MIPS4000             (mips_arch == PROCESSOR_R4000)
+ #define TARGET_MIPS4120             (mips_arch == PROCESSOR_R4120)
+ #define TARGET_MIPS4130             (mips_arch == PROCESSOR_R4130)
++#define TARGET_MIPS4180		    (mips_arch == PROCESSOR_LX4180)
++#define TARGET_MIPS4181		    (mips_arch == PROCESSOR_RLX4181)
++#define TARGET_MIPS4281		    (mips_arch == PROCESSOR_RLX4281)
++#define TARGET_MIPS5181		    (mips_arch == PROCESSOR_RLX5181)
++#define TARGET_MIPS5280		    (mips_arch == PROCESSOR_LX5280)
++#define TARGET_MIPS5281		    (mips_arch == PROCESSOR_RLX5281)
++#define TARGET_RLX		    (TARGET_MIPS4180 || TARGET_MIPS4181 || \
++					TARGET_MIPS4281 || TARGET_MIPS4181 || \
++					TARGET_MIPS5280 || TARGET_MIPS5281)
+ #define TARGET_MIPS5400             (mips_arch == PROCESSOR_R5400)
+ #define TARGET_MIPS5500             (mips_arch == PROCESSOR_R5500)
+ #define TARGET_MIPS7000             (mips_arch == PROCESSOR_R7000)
+@@ -293,12 +308,22 @@ enum mips_code_readable_setting {
+ 				     || mips_tune == PROCESSOR_74KF3_2)
+ #define TUNE_LOONGSON_2EF           (mips_tune == PROCESSOR_LOONGSON_2E	\
+ 				     || mips_tune == PROCESSOR_LOONGSON_2F)
+-#define TUNE_MIPS3000               (mips_tune == PROCESSOR_R3000)
++/* JMM fixme - guessing r3000 is good enough for now */
++#define TUNE_MIPS3000               ((mips_tune == PROCESSOR_R3000) || TUNE_RLX)
+ #define TUNE_MIPS3900               (mips_tune == PROCESSOR_R3900)
+ #define TUNE_MIPS4000               (mips_tune == PROCESSOR_R4000)
+ #define TUNE_MIPS4120               (mips_tune == PROCESSOR_R4120)
+ #define TUNE_MIPS4130               (mips_tune == PROCESSOR_R4130)
++#define TUNE_MIPS4180		    (mips_tune == PROCESSOR_LX4180)
++#define TUNE_MIPS4181		    (mips_tune == PROCESSOR_RLX4181)
++#define TUNE_MIPS4281		    (mips_tune == PROCESSOR_RLX4281)
+ #define TUNE_MIPS5000               (mips_tune == PROCESSOR_R5000)
++#define TUNE_MIPS5181		    (mips_tune == PROCESSOR_RLX5181)
++#define TUNE_MIPS5280		    (mips_tune == PROCESSOR_LX5280)
++#define TUNE_MIPS5281		    (mips_tune == PROCESSOR_RLX5281)
++#define TUNE_RLX		    (TUNE_MIPS4180 || TUNE_MIPS4181 || \
++					TUNE_MIPS4281 || TUNE_MIPS4181 || \
++					TUNE_MIPS5280 || TUNE_MIPS5281)
+ #define TUNE_MIPS5400               (mips_tune == PROCESSOR_R5400)
+ #define TUNE_MIPS5500               (mips_tune == PROCESSOR_R5500)
+ #define TUNE_MIPS6000               (mips_tune == PROCESSOR_R6000)
+Index: gcc-linaro-4.5-2011.08/gcc/config/mips/mips.md
+===================================================================
+--- gcc-linaro-4.5-2011.08.orig/gcc/config/mips/mips.md
++++ gcc-linaro-4.5-2011.08/gcc/config/mips/mips.md
+@@ -3756,7 +3756,7 @@
+ 	(unspec:GPR [(match_operand:BLK 1 "memory_operand" "m")
+ 		     (match_operand:QI 2 "memory_operand" "m")]
+ 		    UNSPEC_LOAD_LEFT))]
+-  "!TARGET_MIPS16 && !TARGET_LEXRA && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
++  "!TARGET_MIPS16 && !TARGET_LEXRA && !TARGET_RLX && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
+   "<load>l\t%0,%2"
+   [(set_attr "move_type" "load")
+    (set_attr "mode" "<MODE>")])
+@@ -3767,7 +3767,7 @@
+ 		     (match_operand:QI 2 "memory_operand" "m")
+ 		     (match_operand:GPR 3 "register_operand" "0")]
+ 		    UNSPEC_LOAD_RIGHT))]
+-  "!TARGET_MIPS16 && !TARGET_LEXRA && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
++  "!TARGET_MIPS16 && !TARGET_LEXRA && !TARGET_RLX && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
+   "<load>r\t%0,%2"
+   [(set_attr "move_type" "load")
+    (set_attr "mode" "<MODE>")])
+@@ -3777,7 +3777,7 @@
+ 	(unspec:BLK [(match_operand:GPR 1 "reg_or_0_operand" "dJ")
+ 		     (match_operand:QI 2 "memory_operand" "m")]
+ 		    UNSPEC_STORE_LEFT))]
+-  "!TARGET_MIPS16 && !TARGET_LEXRA && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
++  "!TARGET_MIPS16 && !TARGET_LEXRA && !TARGET_RLX && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
+   "<store>l\t%z1,%2"
+   [(set_attr "move_type" "store")
+    (set_attr "mode" "<MODE>")])
+@@ -3788,7 +3788,7 @@
+ 		     (match_operand:QI 2 "memory_operand" "m")
+ 		     (match_dup 0)]
+ 		    UNSPEC_STORE_RIGHT))]
+-  "!TARGET_MIPS16 && !TARGET_LEXRA && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
++  "!TARGET_MIPS16 && !TARGET_LEXRA && !TARGET_RLX && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
+   "<store>r\t%z1,%2"
+   [(set_attr "move_type" "store")
+    (set_attr "mode" "<MODE>")])
diff --git a/toolchain/gcc/patches/4.5-linaro/910-mbsd_multi.patch b/toolchain/gcc/patches/4.5-linaro/910-mbsd_multi.patch
new file mode 100644
index 000000000..b9d5ffa24
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/910-mbsd_multi.patch
@@ -0,0 +1,253 @@
+
+	This patch brings over a few features from MirBSD:
+	* -fhonour-copts
+	  If this option is not given, it's warned (depending
+	  on environment variables). This is to catch errors
+	  of misbuilt packages which override CFLAGS themselves.
+	* -Werror-maybe-reset
+	  Has the effect of -Wno-error if GCC_NO_WERROR is
+	  set and not '0', a no-operation otherwise. This is
+	  to be able to use -Werror in "make" but prevent
+	  GNU autoconf generated configure scripts from
+	  freaking out.
+	* Make -fno-strict-aliasing and -fno-delete-null-pointer-checks
+	  the default for -O2/-Os, because they trigger gcc bugs
+	  and can delete code with security implications.
+
+	This patch was authored by Thorsten Glaser <tg at mirbsd.de>
+	with copyright assignment to the FSF in effect.
+
+--- a/gcc/c-opts.c
++++ b/gcc/c-opts.c
+@@ -106,6 +106,9 @@ static size_t deferred_count;
+ /* Number of deferred options scanned for -include.  */
+ static size_t include_cursor;
+ 
++/* Check if a port honours COPTS.  */
++static int honour_copts = 0;
++
+ static void set_Wimplicit (int);
+ static void handle_OPT_d (const char *);
+ static void set_std_cxx98 (int);
+@@ -472,6 +475,9 @@ c_common_handle_option (size_t scode, co
+       enable_warning_as_error ("implicit-function-declaration", value, CL_C | CL_ObjC);
+       break;
+ 
++    case OPT_Werror_maybe_reset:
++      break;
++
+     case OPT_Wformat:
+       set_Wformat (value);
+       break;
+@@ -704,6 +710,12 @@ c_common_handle_option (size_t scode, co
+       flag_exceptions = value;
+       break;
+ 
++    case OPT_fhonour_copts:
++      if (c_language == clk_c) {
++	honour_copts++;
++      }
++      break;
++
+     case OPT_fimplement_inlines:
+       flag_implement_inlines = value;
+       break;
+@@ -1240,6 +1252,47 @@ c_common_init (void)
+       return false;
+     }
+ 
++  if (c_language == clk_c) {
++    char *ev = getenv ("GCC_HONOUR_COPTS");
++    int evv;
++    if (ev == NULL)
++      evv = -1;
++    else if ((*ev == '0') || (*ev == '\0'))
++      evv = 0;
++    else if (*ev == '1')
++      evv = 1;
++    else if (*ev == '2')
++      evv = 2;
++    else if (*ev == 's')
++      evv = -1;
++    else {
++      warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
++      evv = 1; /* maybe depend this on something like MIRBSD_NATIVE?  */
++    }
++    if (evv == 1) {
++      if (honour_copts == 0) {
++	error ("someone does not honour COPTS at all in lenient mode");
++	return false;
++      } else if (honour_copts != 1) {
++	warning (0, "someone does not honour COPTS correctly, passed %d times",
++	 honour_copts);
++      }
++    } else if (evv == 2) {
++      if (honour_copts == 0) {
++	error ("someone does not honour COPTS at all in strict mode");
++	return false;
++      } else if (honour_copts != 1) {
++	error ("someone does not honour COPTS correctly, passed %d times",
++	 honour_copts);
++	return false;
++      }
++    } else if (evv == 0) {
++      if (honour_copts != 1)
++	inform (0, "someone does not honour COPTS correctly, passed %d times",
++	 honour_copts);
++    }
++  }
++
+   return true;
+ }
+ 
+--- a/gcc/c.opt
++++ b/gcc/c.opt
+@@ -219,6 +219,10 @@ Werror-implicit-function-declaration
+ C ObjC RejectNegative Warning
+ This switch is deprecated; use -Werror=implicit-function-declaration instead
+ 
++Werror-maybe-reset
++C ObjC C++ ObjC++
++; Documented in common.opt
++
+ Wfloat-equal
+ C ObjC C++ ObjC++ Var(warn_float_equal) Warning
+ Warn if testing floating point numbers for equality
+@@ -637,6 +641,9 @@ C++ ObjC++ Optimization
+ fhonor-std
+ C++ ObjC++
+ 
++fhonour-copts
++C ObjC C++ ObjC++ RejectNegative
++
+ fhosted
+ C ObjC
+ Assume normal C execution environment
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -105,6 +105,10 @@ Werror=
+ Common Joined
+ Treat specified warning as error
+ 
++Werror-maybe-reset
++Common
++If environment variable GCC_NO_WERROR is set, act as -Wno-error
++
+ Wextra
+ Common Var(extra_warnings) Warning
+ Print extra (possibly unwanted) warnings
+@@ -625,6 +629,9 @@ fguess-branch-probability
+ Common Report Var(flag_guess_branch_prob) Optimization
+ Enable guessing of branch probabilities
+ 
++fhonour-copts
++Common RejectNegative
++
+ ; Nonzero means ignore `#ident' directives.  0 means handle them.
+ ; Generate position-independent code for executables if possible
+ ; On SVR4 targets, it also controls whether or not to emit a
+--- a/gcc/opts.c
++++ b/gcc/opts.c
+@@ -897,8 +897,6 @@ decode_options (unsigned int argc, const
+   flag_schedule_insns_after_reload = opt2;
+ #endif
+   flag_regmove = opt2;
+-  flag_strict_aliasing = opt2;
+-  flag_strict_overflow = opt2;
+   flag_reorder_blocks = opt2;
+   flag_reorder_functions = opt2;
+   flag_tree_vrp = opt2;
+@@ -920,6 +918,8 @@ decode_options (unsigned int argc, const
+ 
+   /* -O3 optimizations.  */
+   opt3 = (optimize >= 3);
++  flag_strict_aliasing = opt3;
++  flag_strict_overflow = opt3;
+   flag_predictive_commoning = opt3;
+   flag_inline_functions = opt3;
+   flag_unswitch_loops = opt3;
+@@ -1648,6 +1648,17 @@ common_handle_option (size_t scode, cons
+       enable_warning_as_error (arg, value, lang_mask);
+       break;
+ 
++    case OPT_Werror_maybe_reset:
++      {
++	char *ev = getenv ("GCC_NO_WERROR");
++	if ((ev != NULL) && (*ev != '0'))
++	  warnings_are_errors = 0;
++      }
++      break;
++
++    case OPT_fhonour_copts:
++      break;
++
+     case OPT_Wlarger_than_:
+       /* This form corresponds to -Wlarger-than-.
+ 	 Kept for backward compatibility.
+--- a/gcc/doc/cppopts.texi
++++ b/gcc/doc/cppopts.texi
+@@ -164,6 +164,11 @@ in older programs.  This warning is on b
+ Make all warnings into hard errors.  Source code which triggers warnings
+ will be rejected.
+ 
++ at item -Werror-maybe-reset
++ at opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
+ @item -Wsystem-headers
+ @opindex Wsystem-headers
+ Issue warnings for code in system headers.  These are normally unhelpful
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -235,7 +235,7 @@ Objective-C and Objective-C++ Dialects}.
+ -Wconversion  -Wcoverage-mismatch  -Wno-deprecated  @gol
+ -Wno-deprecated-declarations -Wdisabled-optimization  @gol
+ -Wno-div-by-zero -Wdouble-promotion -Wempty-body  -Wenum-compare @gol
+--Wno-endif-labels -Werror  -Werror=* @gol
++-Wno-endif-labels -Werror  -Werror=* -Werror-maybe-reset @gol
+ -Wfatal-errors  -Wfloat-equal  -Wformat  -Wformat=2 @gol
+ -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral @gol
+ -Wformat-security  -Wformat-y2k @gol
+@@ -4360,6 +4360,22 @@ This option is only supported for C and
+ @option{-Wall} and by @option{-pedantic}, which can be disabled with
+ @option{-Wno-pointer-sign}.
+ 
++ at item -Werror-maybe-reset
++ at opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
++ at item -fhonour-copts
++ at opindex fhonour-copts
++If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
++given at least once, and warn if it is given more than once.
++If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
++given exactly once.
++If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
++is not given exactly once.
++The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
++This flag and environment variable only affect the C language.
++
+ @item -Wstack-protector
+ @opindex Wstack-protector
+ @opindex Wno-stack-protector
+@@ -6114,7 +6130,7 @@ so, the first branch is redirected to ei
+ second branch or a point immediately following it, depending on whether
+ the condition is known to be true or false.
+ 
+-Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
++Enabled at levels @option{-O3}.
+ 
+ @item -fsplit-wide-types
+ @opindex fsplit-wide-types
+--- a/gcc/java/jvspec.c
++++ b/gcc/java/jvspec.c
+@@ -667,6 +667,7 @@ lang_specific_pre_link (void)
+      class name.  Append dummy `.c' that can be stripped by set_input so %b
+      is correct.  */ 
+   set_input (concat (main_class_name, "main.c", NULL));
++  putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack!  */
+   err = do_spec (jvgenmain_spec);
+   if (err == 0)
+     {
diff --git a/toolchain/gcc/patches/4.5-linaro/920-specs_nonfatal_getenv.patch b/toolchain/gcc/patches/4.5-linaro/920-specs_nonfatal_getenv.patch
new file mode 100644
index 000000000..001088a25
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/920-specs_nonfatal_getenv.patch
@@ -0,0 +1,14 @@
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -8583,7 +8583,10 @@ getenv_spec_function (int argc, const ch
+ 
+   value = getenv (argv[0]);
+   if (!value)
+-    fatal ("environment variable \"%s\" not defined", argv[0]);
++  {
++    error ("warning: environment variable \"%s\" not defined", argv[0]);
++    value = "";
++  }
+ 
+   /* We have to escape every character of the environment variable so
+      they are not interpreted as active spec characters.  A
diff --git a/toolchain/gcc/patches/4.5-linaro/993-arm_insn-opinit-RTX_CODE-fixup.patch b/toolchain/gcc/patches/4.5-linaro/993-arm_insn-opinit-RTX_CODE-fixup.patch
new file mode 100644
index 000000000..57feb328f
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/993-arm_insn-opinit-RTX_CODE-fixup.patch
@@ -0,0 +1,14 @@
+--- a/gcc/config/arm/arm-protos.h
++++ b/gcc/config/arm/arm-protos.h
+@@ -44,10 +44,10 @@ extern unsigned int arm_dbx_register_num
+ extern void arm_output_fn_unwind (FILE *, bool);
+   
+ 
+-#ifdef RTX_CODE
+ extern bool arm_vector_mode_supported_p (enum machine_mode);
+ extern int arm_hard_regno_mode_ok (unsigned int, enum machine_mode);
+ extern int const_ok_for_arm (HOST_WIDE_INT);
++#ifdef RTX_CODE
+ extern int arm_split_constant (RTX_CODE, enum machine_mode, rtx,
+ 			       HOST_WIDE_INT, rtx, rtx, int);
+ extern RTX_CODE arm_canonicalize_comparison (RTX_CODE, rtx *, rtx *);
diff --git a/toolchain/gcc/patches/4.5-linaro/995-fa526.patch b/toolchain/gcc/patches/4.5-linaro/995-fa526.patch
new file mode 100644
index 000000000..700bb4a90
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/995-fa526.patch
@@ -0,0 +1,257 @@
+--- a/gcc/config/arm/arm-cores.def
++++ b/gcc/config/arm/arm-cores.def
+@@ -74,6 +74,7 @@ ARM_CORE("strongarm",     strongarm,	4,
+ ARM_CORE("strongarm110",  strongarm110,	4,	             FL_MODE26 | FL_LDSCHED | FL_STRONG, fastmul)
+ ARM_CORE("strongarm1100", strongarm1100, 4,	             FL_MODE26 | FL_LDSCHED | FL_STRONG, fastmul)
+ ARM_CORE("strongarm1110", strongarm1110, 4,	             FL_MODE26 | FL_LDSCHED | FL_STRONG, fastmul)
++ARM_CORE("fa526",         fa526,        4,                               FL_LDSCHED, fastmul)
+ 
+ /* V4T Architecture Processors */
+ ARM_CORE("arm7tdmi",      arm7tdmi,	4T,	FL_CO_PROC          , fastmul)
+--- a/gcc/config/arm/arm.md
++++ b/gcc/config/arm/arm.md
+@@ -435,7 +435,7 @@
+ 
+ (define_attr "generic_sched" "yes,no"
+   (const (if_then_else
+-          (ior (eq_attr "tune" "arm926ejs,arm1020e,arm1026ejs,arm1136js,arm1136jfs,cortexa5,cortexa8,cortexa9,cortexm4")
++          (ior (eq_attr "tune" "fa526,arm926ejs,arm1020e,arm1026ejs,arm1136js,arm1136jfs,cortexa5,cortexa8,cortexa9,cortexm4")
+ 	       (eq_attr "tune_cortexr4" "yes"))
+           (const_string "no")
+           (const_string "yes"))))
+@@ -467,6 +467,7 @@
+ (include "arm1020e.md")
+ (include "arm1026ejs.md")
+ (include "arm1136jfs.md")
++(include "fa526.md")
+ (include "cortex-a5.md")
+ (include "cortex-a8.md")
+ (include "cortex-a9.md")
+--- a/gcc/config/arm/arm-tune.md
++++ b/gcc/config/arm/arm-tune.md
+@@ -1,5 +1,5 @@
+ ;; -*- buffer-read-only: t -*-
+ ;; Generated automatically by gentune.sh from arm-cores.def
+ (define_attr "tune"
+-	"arm2,arm250,arm3,arm6,arm60,arm600,arm610,arm620,arm7,arm7d,arm7di,arm70,arm700,arm700i,arm710,arm720,arm710c,arm7100,arm7500,arm7500fe,arm7m,arm7dm,arm7dmi,arm8,arm810,strongarm,strongarm110,strongarm1100,strongarm1110,arm7tdmi,arm7tdmis,arm710t,arm720t,arm740t,arm9,arm9tdmi,arm920,arm920t,arm922t,arm940t,ep9312,arm10tdmi,arm1020t,arm9e,arm946es,arm966es,arm968es,arm10e,arm1020e,arm1022e,xscale,iwmmxt,iwmmxt2,arm926ejs,arm1026ejs,arm1136js,arm1136jfs,arm1176jzs,arm1176jzfs,mpcorenovfp,mpcore,arm1156t2s,arm1156t2fs,cortexa5,cortexa8,cortexa9,cortexr4,cortexr4f,cortexm4,cortexm3,cortexm1,cortexm0"
++	"arm2,arm250,arm3,arm6,arm60,arm600,arm610,arm620,arm7,arm7d,arm7di,arm70,arm700,arm700i,arm710,arm720,arm710c,arm7100,arm7500,arm7500fe,arm7m,arm7dm,arm7dmi,arm8,arm810,strongarm,strongarm110,strongarm1100,strongarm1110,fa526,arm7tdmi,arm7tdmis,arm710t,arm720t,arm740t,arm9,arm9tdmi,arm920,arm920t,arm922t,arm940t,ep9312,arm10tdmi,arm1020t,arm9e,arm946es,arm966es,arm968es,arm10e,arm1020e,arm1022e,xscale,iwmmxt,iwmmxt2,arm926ejs,arm1026ejs,arm1136js,arm1136jfs,arm1176jzs,arm1176jzfs,mpcorenovfp,mpcore,arm1156t2s,arm1156t2fs,cortexa5,cortexa8,cortexa9,cortexr4,cortexr4f,cortexm4,cortexm3,cortexm1,cortexm0"
+ 	(const (symbol_ref "((enum attr_tune) arm_tune)")))
+--- a/gcc/config/arm/bpabi.h
++++ b/gcc/config/arm/bpabi.h
+@@ -52,7 +52,8 @@
+ /* The BPABI integer comparison routines return { -1, 0, 1 }.  */
+ #define TARGET_LIB_INT_CMP_BIASED !TARGET_BPABI
+ 
+-#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*|march=armv4:--fix-v4bx}"
++#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*\
++|march=armv4|mcpu=fa526:--fix-v4bx}"
+ 
+ #define BE8_LINK_SPEC " %{mbig-endian:%{march=armv7-a|mcpu=cortex-a5|mcpu=cortex-a8|mcpu=cortex-a9:%{!r:--be8}}}"
+ 
+--- /dev/null
++++ b/gcc/config/arm/fa526.md
+@@ -0,0 +1,161 @@
++;; Faraday FA526 Pipeline Description
++;; Copyright (C) 2010 Free Software Foundation, Inc.
++;; Written by I-Jui Sung, based on ARM926EJ-S Pipeline Description.
++
++;; 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/>.  */
++
++;; These descriptions are based on the information contained in the
++;; FA526 Core Design Note, Copyright (c) 2010 Faraday Technology Corp.
++;;
++;; Modeled pipeline characteristics:
++;; LD -> any use: latency = 3 (2 cycle penalty).
++;; ALU -> any use: latency = 2 (1 cycle penalty).
++
++;; This automaton provides a pipeline description for the Faraday
++;; FA526 core.
++;;
++;; The model given here assumes that the condition for all conditional
++;; instructions is "true", i.e., that all of the instructions are
++;; actually executed.
++
++(define_automaton "fa526")
++
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++;; Pipelines
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++
++;; There is a single pipeline
++;;
++;;   The ALU pipeline has fetch, decode, execute, memory, and
++;;   write stages.  We only need to model the execute, memory and write
++;;   stages.
++
++;;      S      E      M      W
++
++(define_cpu_unit "fa526_core" "fa526")
++
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++;; ALU Instructions
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++
++;; ALU instructions require two cycles to execute, and use the ALU
++;; pipeline in each of the three stages.  The results are available
++;; after the execute stage stage has finished.
++;;
++;; If the destination register is the PC, the pipelines are stalled
++;; for several cycles.  That case is not modeled here.
++
++;; ALU operations
++(define_insn_reservation "526_alu_op" 1
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "alu"))
++ "fa526_core")
++
++(define_insn_reservation "526_alu_shift_op" 2
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "alu_shift,alu_shift_reg"))
++ "fa526_core")
++
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++;; Multiplication Instructions
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++
++(define_insn_reservation "526_mult1" 2
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "insn" "smlalxy,smulxy,smlaxy,smlalxy"))
++ "fa526_core")
++
++(define_insn_reservation "526_mult2" 5
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "insn" "mul,mla,muls,mlas,umull,umlal,smull,smlal,umulls,\
++                       umlals,smulls,smlals,smlawx"))
++ "fa526_core*4")
++
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++;; Load/Store Instructions
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++
++;; The models for load/store instructions do not accurately describe
++;; the difference between operations with a base register writeback
++;; (such as "ldm!").  These models assume that all memory references
++;; hit in dcache.
++
++(define_insn_reservation "526_load1_op" 3
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "load1,load_byte"))
++ "fa526_core")
++
++(define_insn_reservation "526_load2_op" 4
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "load2"))
++ "fa526_core*2")
++
++(define_insn_reservation "526_load3_op" 5
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "load3"))
++ "fa526_core*3")
++
++(define_insn_reservation "526_load4_op" 6
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "load4"))
++ "fa526_core*4")
++
++(define_insn_reservation "526_store1_op" 0
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "store1"))
++ "fa526_core")
++
++(define_insn_reservation "526_store2_op" 1
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "store2"))
++ "fa526_core*2")
++
++(define_insn_reservation "526_store3_op" 2
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "store3"))
++ "fa526_core*3")
++
++(define_insn_reservation "526_store4_op" 3
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "store4"))
++ "fa526_core*4")
++
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++;; Branch and Call Instructions
++;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
++
++;; Branch instructions are difficult to model accurately.  The FA526
++;; core can predict most branches.  If the branch is predicted
++;; correctly, and predicted early enough, the branch can be completely
++;; eliminated from the instruction stream.  Some branches can
++;; therefore appear to require zero cycle to execute.  We assume that
++;; all branches are predicted correctly, and that the latency is
++;; therefore the minimum value.
++
++(define_insn_reservation "526_branch_op" 0
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "branch"))
++ "fa526_core")
++
++;; The latency for a call is actually the latency when the result is available.
++;; i.e. R0 ready for int return value.  For most cases, the return value is set
++;; by a mov instruction, which has 1 cycle latency.
++(define_insn_reservation "526_call_op" 1
++ (and (eq_attr "tune" "fa526")
++      (eq_attr "type" "call"))
++ "fa526_core")
++
+--- a/gcc/config/arm/t-arm
++++ b/gcc/config/arm/t-arm
+@@ -23,6 +23,7 @@ MD_INCLUDES=	$(srcdir)/config/arm/arm-tu
+ 		$(srcdir)/config/arm/arm-generic.md       	\
+ 	 	$(srcdir)/config/arm/arm1020e.md          	\
+ 	 	$(srcdir)/config/arm/arm1026ejs.md        	\
++		$(srcdir)/config/arm/fa526.md			\
+ 		$(srcdir)/config/arm/arm1136jfs.md        	\
+ 	 	$(srcdir)/config/arm/arm926ejs.md         	\
+ 		$(srcdir)/config/arm/cirrus.md            	\
+--- a/gcc/config/arm/t-arm-elf
++++ b/gcc/config/arm/t-arm-elf
+@@ -36,6 +36,10 @@ MULTILIB_DIRNAMES    = arm thumb
+ MULTILIB_EXCEPTIONS  = 
+ MULTILIB_MATCHES     =
+ 
++#MULTILIB_OPTIONS     += mcpu=fa526
++#MULTILIB_DIRNAMES    += fa526
++#MULTILIB_EXCEPTIONS  += *mthumb*/*mcpu=fa526
++
+ #MULTILIB_OPTIONS      += march=armv7
+ #MULTILIB_DIRNAMES     += thumb2
+ #MULTILIB_EXCEPTIONS   += march=armv7* marm/*march=armv7*
+@@ -52,6 +56,7 @@ MULTILIB_MATCHES     =
+ MULTILIB_OPTIONS       += mfloat-abi=hard
+ MULTILIB_DIRNAMES      += fpu
+ MULTILIB_EXCEPTIONS    += *mthumb/*mfloat-abi=hard*
++MULTILIB_EXCEPTIONS    += *mcpu=fa526/*mfloat-abi=hard*
+ 
+ # MULTILIB_OPTIONS    += mcpu=ep9312
+ # MULTILIB_DIRNAMES   += ep9312
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -9923,7 +9923,8 @@ assembly code.  Permissible names are: @
+ @samp{cortex-r4}, @samp{cortex-r4f}, @samp{cortex-m4}, @samp{cortex-m3},
+ @samp{cortex-m1},
+ @samp{cortex-m0},
+-@samp{xscale}, @samp{iwmmxt}, @samp{iwmmxt2}, @samp{ep9312}.
++@samp{xscale}, @samp{iwmmxt}, @samp{iwmmxt2}, @samp{ep9312},
++@samp{fa526}.
+ 
+ @item -mtune=@var{name}
+ @opindex mtune
diff --git a/toolchain/gcc/patches/4.5-linaro/999-coldfire.patch b/toolchain/gcc/patches/4.5-linaro/999-coldfire.patch
new file mode 100644
index 000000000..fabb8ef3a
--- /dev/null
+++ b/toolchain/gcc/patches/4.5-linaro/999-coldfire.patch
@@ -0,0 +1,10 @@
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -1693,6 +1693,7 @@ m68k-*-linux*)		# Motorola m68k's runnin
+ 	if test x$sjlj != x1; then
+ 	    tmake_file="$tmake_file m68k/t-slibgcc-elf-ver"
+ 	fi
++	tmake_file="m68k/t-floatlib m68k/t-m68kbare m68k/t-m68kelf"
+ 	;;
+ m68k-*-rtems*)
+ 	default_m68k_cpu=68020