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-rw-r--r--patches/gcc/linaro-5.4-2017.01/100-uclibc-conf.patch15
-rw-r--r--patches/gcc/linaro-5.4-2017.01/1000-libtool-leave-framework-alone.patch14
-rw-r--r--patches/gcc/linaro-5.4-2017.01/110-xtensa-implement-trap-pattern.patch64
-rw-r--r--patches/gcc/linaro-5.4-2017.01/120-gcc-config.gcc-fix-typo-for-powerpc-e6500-cpu_is_64b.patch29
-rw-r--r--patches/gcc/linaro-5.4-2017.01/301-missing-execinfo_h.patch13
-rw-r--r--patches/gcc/linaro-5.4-2017.01/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch160
-rw-r--r--patches/gcc/linaro-5.4-2017.01/380-gcc-plugin-POSIX-include-sys-select-h.patch11
-rw-r--r--patches/gcc/linaro-5.4-2017.01/810-arm-softfloat-libgcc.patch30
-rw-r--r--patches/gcc/linaro-5.4-2017.01/830-arm_unbreak_armv4t.patch15
-rw-r--r--patches/gcc/linaro-5.4-2017.01/840-microblaze-enable-dwarf-eh-support.patch166
-rw-r--r--patches/gcc/linaro-5.4-2017.01/850-libstdcxx-uclibc-c99.patch273
-rw-r--r--patches/gcc/linaro-5.4-2017.01/860-cilk-wchar.patch56
-rw-r--r--patches/gcc/linaro-5.4-2017.01/870-xtensa-add-mauto-litpools-option.patch290
-rw-r--r--patches/gcc/linaro-5.4-2017.01/871-xtensa-reimplement-register-spilling.patch76
-rw-r--r--patches/gcc/linaro-5.4-2017.01/872-xtensa-use-unwind-dw2-fde-dip-instead-of-unwind-dw2-.patch31
-rw-r--r--patches/gcc/linaro-5.4-2017.01/873-xtensa-fix-_Unwind_GetCFA.patch40
-rw-r--r--patches/gcc/linaro-5.4-2017.01/874-xtensa-add-uclinux-support.patch174
-rw-r--r--patches/gcc/linaro-5.4-2017.01/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch108
-rw-r--r--patches/gcc/linaro-5.4-2017.01/876-xtensa-fix-libgcc-build-with-text-section-literals.patch67
-rw-r--r--patches/gcc/linaro-5.4-2017.01/877-xtensa-don-t-use-unwind-dw2-fde-dip-with-elf-targets.patch62
-rw-r--r--patches/gcc/linaro-5.4-2017.01/878-xtensa-Fix-PR-target-78603.patch35
-rw-r--r--patches/gcc/linaro-5.4-2017.01/890-fix-m68k-compile.patch15
-rw-r--r--patches/gcc/linaro-5.4-2017.01/891-fix-m68k-uclinux.patch18
-rw-r--r--patches/gcc/linaro-5.4-2017.01/892-microblaze-uclibc.patch24
-rw-r--r--patches/gcc/linaro-5.4-2017.01/902-unwind-fix-for-musl.patch36
-rw-r--r--patches/gcc/linaro-5.4-2017.01/910-nios2-bad-multilib-default.patch28
-rw-r--r--patches/gcc/linaro-5.4-2017.01/930-libgcc-disable-split-stack-nothreads.patch14
-rw-r--r--patches/gcc/linaro-5.4-2017.01/940-uclinux-enable-threads.patch19
28 files changed, 1883 insertions, 0 deletions
diff --git a/patches/gcc/linaro-5.4-2017.01/100-uclibc-conf.patch b/patches/gcc/linaro-5.4-2017.01/100-uclibc-conf.patch
new file mode 100644
index 0000000..73d1f0d
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/100-uclibc-conf.patch
@@ -0,0 +1,15 @@
+Index: b/contrib/regression/objs-gcc.sh
+===================================================================
+--- a/contrib/regression/objs-gcc.sh
++++ b/contrib/regression/objs-gcc.sh
+@@ -106,6 +106,10 @@
+ then
+ make all-gdb all-dejagnu all-ld || exit 1
+ make install-gdb install-dejagnu install-ld || exit 1
++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
diff --git a/patches/gcc/linaro-5.4-2017.01/1000-libtool-leave-framework-alone.patch b/patches/gcc/linaro-5.4-2017.01/1000-libtool-leave-framework-alone.patch
new file mode 100644
index 0000000..0f4912a
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/1000-libtool-leave-framework-alone.patch
@@ -0,0 +1,14 @@
+--- gcc-5.4.0/libtool-ldflags 2016-12-20 11:13:12.669668125 -0800
++++ gcc-5.4.0/libtool-ldflags 2016-12-20 11:28:34.894826286 -0800
+@@ -36,6 +36,11 @@
+ for arg
+ do
+ case $arg in
++ -framework)
++ # libtool handles this option. It should not be prefixed with
++ # -Xcompiler, as that would split it from the argument that
++ # follows.
++ ;;
+ -f*|--*|-static-lib*|-shared-lib*|-B*)
+ # Libtool does not ascribe any special meaning options
+ # that begin with -f or with a double-dash. So, it will
diff --git a/patches/gcc/linaro-5.4-2017.01/110-xtensa-implement-trap-pattern.patch b/patches/gcc/linaro-5.4-2017.01/110-xtensa-implement-trap-pattern.patch
new file mode 100644
index 0000000..3304532
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/110-xtensa-implement-trap-pattern.patch
@@ -0,0 +1,64 @@
+From d462e776df56a72f68545054f6d722bf447f0519 Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Mon, 8 Jun 2015 22:29:11 +0300
+Subject: [PATCH] xtensa: implement trap pattern
+
+gcc/
+ * config/xtensa/xtensa.h (TARGET_DEBUG): New definition.
+ * config/xtensa/xtensa.md (define_attr "type"): New type "trap".
+ (define_insn "trap"): New definition.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ gcc/config/xtensa/xtensa.h | 1 +
+ gcc/config/xtensa/xtensa.md | 15 ++++++++++++++-
+ 2 files changed, 15 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
+index 011411c..584080b 100644
+--- a/gcc/config/xtensa/xtensa.h
++++ b/gcc/config/xtensa/xtensa.h
+@@ -67,6 +67,7 @@ extern unsigned xtensa_current_frame_size;
+ #define TARGET_THREADPTR XCHAL_HAVE_THREADPTR
+ #define TARGET_LOOPS XCHAL_HAVE_LOOPS
+ #define TARGET_WINDOWED_ABI (XSHAL_ABI == XTHAL_ABI_WINDOWED)
++#define TARGET_DEBUG XCHAL_HAVE_DEBUG
+
+ #define TARGET_DEFAULT \
+ ((XCHAL_HAVE_L32R ? 0 : MASK_CONST16) | \
+diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md
+index 6d84384..a577aa3 100644
+--- a/gcc/config/xtensa/xtensa.md
++++ b/gcc/config/xtensa/xtensa.md
+@@ -86,7 +86,7 @@
+ ;; Attributes.
+
+ (define_attr "type"
+- "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry"
++ "unknown,jump,call,load,store,move,arith,multi,nop,farith,fmadd,fconv,fload,fstore,mul16,mul32,div32,mac16,rsr,wsr,entry,trap"
+ (const_string "unknown"))
+
+ (define_attr "mode"
+@@ -1764,6 +1764,19 @@
+ [(set_attr "length" "0")
+ (set_attr "type" "nop")])
+
++(define_insn "trap"
++ [(trap_if (const_int 1) (const_int 0))]
++ ""
++{
++ if (TARGET_DEBUG)
++ return "break\t1, 15";
++ else
++ return (TARGET_DENSITY ? "ill.n" : "ill");
++}
++ [(set_attr "type" "trap")
++ (set_attr "mode" "none")
++ (set_attr "length" "3")])
++
+ ;; Setting up a frame pointer is tricky for Xtensa because GCC doesn't
+ ;; know if a frame pointer is required until the reload pass, and
+ ;; because there may be an incoming argument value in the hard frame
+--
+1.8.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/120-gcc-config.gcc-fix-typo-for-powerpc-e6500-cpu_is_64b.patch b/patches/gcc/linaro-5.4-2017.01/120-gcc-config.gcc-fix-typo-for-powerpc-e6500-cpu_is_64b.patch
new file mode 100644
index 0000000..c11ad35
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/120-gcc-config.gcc-fix-typo-for-powerpc-e6500-cpu_is_64b.patch
@@ -0,0 +1,29 @@
+From 9bf6066d588632dab9f78932df15b5b4140f31f3 Mon Sep 17 00:00:00 2001
+From: "Arnout Vandecappelle (Essensium/Mind)" <arnout@mind.be>
+Date: Fri, 6 Nov 2015 14:27:23 +0100
+Subject: [PATCH] gcc/config.gcc: fix typo for powerpc e6500 cpu_is_64bit
+
+Otherwise it is not recognized as a 64-bit powerpc and gcc will not generate
+64-bit binaries by default.
+
+Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
+---
+ gcc/config.gcc | 2 +-
+ 2 files changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/config.gcc b/gcc/config.gcc
+index 4a7cbd2..9cc765e 100644
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -439,7 +439,7 @@ powerpc*-*-*)
+ cpu_type=rs6000
+ extra_headers="ppc-asm.h altivec.h spe.h ppu_intrinsics.h paired.h spu2vmx.h vec_types.h si2vmx.h htmintrin.h htmxlintrin.h"
+ case x$with_cpu in
+- xpowerpc64|xdefault64|x6[23]0|x970|xG5|xpower[345678]|xpower6x|xrs64a|xcell|xa2|xe500mc64|xe5500|Xe6500)
++ xpowerpc64|xdefault64|x6[23]0|x970|xG5|xpower[345678]|xpower6x|xrs64a|xcell|xa2|xe500mc64|xe5500|xe6500)
+ cpu_is_64bit=yes
+ ;;
+ esac
+--
+2.6.2
+
diff --git a/patches/gcc/linaro-5.4-2017.01/301-missing-execinfo_h.patch b/patches/gcc/linaro-5.4-2017.01/301-missing-execinfo_h.patch
new file mode 100644
index 0000000..2d0e7ba
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/301-missing-execinfo_h.patch
@@ -0,0 +1,13 @@
+Index: b/boehm-gc/include/gc.h
+===================================================================
+--- a/boehm-gc/include/gc.h
++++ b/boehm-gc/include/gc.h
+@@ -503,7 +503,7 @@
+ #if defined(__linux__) || defined(__GLIBC__)
+ # include <features.h>
+ # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
+- && !defined(__ia64__)
++ && !defined(__ia64__) && !defined(__UCLIBC__)
+ # ifndef GC_HAVE_BUILTIN_BACKTRACE
+ # define GC_HAVE_BUILTIN_BACKTRACE
+ # endif
diff --git a/patches/gcc/linaro-5.4-2017.01/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch b/patches/gcc/linaro-5.4-2017.01/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch
new file mode 100644
index 0000000..d8986d5
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch
@@ -0,0 +1,160 @@
+diff -urN gcc-5.3.0.orig/config/gcc-plugin.m4 gcc-5.3.0/config/gcc-plugin.m4
+--- gcc-5.3.0.orig/config/gcc-plugin.m4 2015-12-19 14:39:04.120734900 +0000
++++ gcc-5.3.0/config/gcc-plugin.m4 2015-12-20 01:28:45.381965300 +0000
+@@ -20,6 +20,9 @@
+
+ pluginlibs=
+
++ PICFLAG="-fPIC"
++ UNDEFINEDPREAMBLE="extern int X;"
++ UNDEFINEDCODE="return X == 0;"
+ case "${host}" in
+ *-*-darwin*)
+ if test x$build = x$host; then
+@@ -30,6 +33,11 @@
+ export_sym_check=
+ fi
+ ;;
++ *-*-mingw*|*-*-cygwin*|*-*-msys*)
++ PICFLAG=""
++ UNDEFINEDPREAMBLE=""
++ UNDEFINEDCODE=""
++ ;;
+ *)
+ if test x$build = x$host; then
+ export_sym_check="objdump${exeext} -T"
+@@ -81,17 +89,17 @@
+ case "${host}" in
+ *-*-darwin*)
+ CFLAGS=`echo $CFLAGS | sed s/-mdynamic-no-pic//g`
+- CFLAGS="$CFLAGS -fPIC"
++ CFLAGS="$CFLAGS ${PICFLAG}"
+ LDFLAGS="$LDFLAGS -shared -undefined dynamic_lookup"
+ ;;
+ *)
+- CFLAGS="$CFLAGS -fPIC"
+- LDFLAGS="$LDFLAGS -fPIC -shared"
++ CFLAGS="$CFLAGS ${PICFLAG}"
++ LDFLAGS="$LDFLAGS ${PICFLAG} -shared"
+ ;;
+ esac
+- AC_MSG_CHECKING([for -fPIC -shared])
++ AC_MSG_CHECKING([for ${PICFLAG} -shared])
+ AC_TRY_LINK(
+- [extern int X;],[return X == 0;],
++ [${UNDEFINEDPREAMBLE}],[${UNDEFINEDCODE}],
+ [AC_MSG_RESULT([yes]); have_pic_shared=yes],
+ [AC_MSG_RESULT([no]); have_pic_shared=no])
+ if test x"$have_pic_shared" != x"yes" -o x"$ac_cv_search_dlopen" = x"no"; then
+diff -urN gcc-5.3.0.orig/gcc/configure gcc-5.3.0/gcc/configure
+--- gcc-5.3.0.orig/gcc/configure 2015-12-19 14:40:16.893975900 +0000
++++ gcc-5.3.0/gcc/configure 2015-12-20 01:28:45.472476700 +0000
+@@ -28386,6 +28386,9 @@
+
+ pluginlibs=
+
++ PICFLAG="-fPIC"
++ UNDEFINEDPREAMBLE="extern int X;"
++ UNDEFINEDCODE="return X == 0;"
+ case "${host}" in
+ *-*-darwin*)
+ if test x$build = x$host; then
+@@ -28396,6 +28399,11 @@
+ export_sym_check=
+ fi
+ ;;
++ *-*-mingw*|*-*-cygwin*|*-*-msys*)
++ PICFLAG=""
++ UNDEFINEDPREAMBLE=""
++ UNDEFINEDCODE=""
++ ;;
+ *)
+ if test x$build = x$host; then
+ export_sym_check="objdump${exeext} -T"
+@@ -28508,23 +28516,23 @@
+ case "${host}" in
+ *-*-darwin*)
+ CFLAGS=`echo $CFLAGS | sed s/-mdynamic-no-pic//g`
+- CFLAGS="$CFLAGS -fPIC"
++ CFLAGS="$CFLAGS ${PICFLAG}"
+ LDFLAGS="$LDFLAGS -shared -undefined dynamic_lookup"
+ ;;
+ *)
+- CFLAGS="$CFLAGS -fPIC"
+- LDFLAGS="$LDFLAGS -fPIC -shared"
++ CFLAGS="$CFLAGS ${PICFLAG}"
++ LDFLAGS="$LDFLAGS ${PICFLAG} -shared"
+ ;;
+ esac
+- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fPIC -shared" >&5
+-$as_echo_n "checking for -fPIC -shared... " >&6; }
++ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${PICFLAG} -shared" >&5
++$as_echo_n "checking for ${PICFLAG} -shared... " >&6; }
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h. */
+-extern int X;
++${UNDEFINEDPREAMBLE}
+ int
+ main ()
+ {
+-return X == 0;
++${UNDEFINEDCODE}
+ ;
+ return 0;
+ }
+diff -urN gcc-5.3.0.orig/libcc1/configure gcc-5.3.0/libcc1/configure
+--- gcc-5.3.0.orig/libcc1/configure 2015-12-19 14:40:20.855979000 +0000
++++ gcc-5.3.0/libcc1/configure 2015-12-20 01:28:45.504980900 +0000
+@@ -14500,6 +14500,9 @@
+
+ pluginlibs=
+
++ PICFLAG="-fPIC"
++ UNDEFINEDPREAMBLE="extern int X;"
++ UNDEFINEDCODE="return X == 0;"
+ case "${host}" in
+ *-*-darwin*)
+ if test x$build = x$host; then
+@@ -14510,6 +14513,11 @@
+ export_sym_check=
+ fi
+ ;;
++ *-*-mingw*|*-*-cygwin*|*-*-msys*)
++ PICFLAG=""
++ UNDEFINEDPREAMBLE=""
++ UNDEFINEDCODE=""
++ ;;
+ *)
+ if test x$build = x$host; then
+ export_sym_check="objdump${exeext} -T"
+@@ -14622,23 +14630,23 @@
+ case "${host}" in
+ *-*-darwin*)
+ CFLAGS=`echo $CFLAGS | sed s/-mdynamic-no-pic//g`
+- CFLAGS="$CFLAGS -fPIC"
++ CFLAGS="$CFLAGS ${PICFLAG}"
+ LDFLAGS="$LDFLAGS -shared -undefined dynamic_lookup"
+ ;;
+ *)
+- CFLAGS="$CFLAGS -fPIC"
+- LDFLAGS="$LDFLAGS -fPIC -shared"
++ CFLAGS="$CFLAGS ${PICFLAG}"
++ LDFLAGS="$LDFLAGS ${PICFLAG} -shared"
+ ;;
+ esac
+- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fPIC -shared" >&5
+-$as_echo_n "checking for -fPIC -shared... " >&6; }
++ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${PICFLAG} -shared" >&5
++$as_echo_n "checking for ${PICFLAG} -shared... " >&6; }
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h. */
+-extern int X;
++${UNDEFINEDPREAMBLE}
+ int
+ main ()
+ {
+-return X == 0;
++${UNDEFINEDCODE}
+ ;
+ return 0;
+ }
diff --git a/patches/gcc/linaro-5.4-2017.01/380-gcc-plugin-POSIX-include-sys-select-h.patch b/patches/gcc/linaro-5.4-2017.01/380-gcc-plugin-POSIX-include-sys-select-h.patch
new file mode 100644
index 0000000..12ef48e
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/380-gcc-plugin-POSIX-include-sys-select-h.patch
@@ -0,0 +1,11 @@
+diff -urN gcc-5.3.0.orig/libcc1/connection.cc gcc-5.3.0/libcc1/connection.cc
+--- gcc-5.3.0.orig/libcc1/connection.cc 2015-12-19 14:40:20.860479600 +0000
++++ gcc-5.3.0/libcc1/connection.cc 2015-12-20 01:31:04.346611500 +0000
+@@ -21,6 +21,7 @@
+ #include <string>
+ #include <unistd.h>
+ #include <sys/types.h>
++#include <sys/select.h>
+ #include <string.h>
+ #include <errno.h>
+ #include "marshall.hh"
diff --git a/patches/gcc/linaro-5.4-2017.01/810-arm-softfloat-libgcc.patch b/patches/gcc/linaro-5.4-2017.01/810-arm-softfloat-libgcc.patch
new file mode 100644
index 0000000..5efa7fd
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/810-arm-softfloat-libgcc.patch
@@ -0,0 +1,30 @@
+Index: b/gcc/config/arm/linux-elf.h
+===================================================================
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -60,7 +60,7 @@
+ %{shared:-lc} \
+ %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+
+-#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
++#define LIBGCC_SPEC "-lgcc"
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+
+Index: b/libgcc/config/arm/t-linux
+===================================================================
+--- a/libgcc/config/arm/t-linux
++++ b/libgcc/config/arm/t-linux
+@@ -1,6 +1,11 @@
+ LIB1ASMSRC = arm/lib1funcs.S
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
+- _ctzsi2 _arm_addsubdf3 _arm_addsubsf3
++ _ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
++ _arm_addsubdf3 _arm_addsubsf3 \
++ _arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
++ _arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
++ _arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
++ _arm_fixsfsi _arm_fixunssfsi
+
+ # Just for these, we omit the frame pointer since it makes such a big
+ # difference.
diff --git a/patches/gcc/linaro-5.4-2017.01/830-arm_unbreak_armv4t.patch b/patches/gcc/linaro-5.4-2017.01/830-arm_unbreak_armv4t.patch
new file mode 100644
index 0000000..b730059
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/830-arm_unbreak_armv4t.patch
@@ -0,0 +1,15 @@
+http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
+
+Index: b/gcc/config/arm/linux-eabi.h
+===================================================================
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -45,7 +45,7 @@
+ The ARM10TDMI core is the default for armv5t, so set
+ SUBTARGET_CPU_DEFAULT to achieve this. */
+ #undef SUBTARGET_CPU_DEFAULT
+-#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/patches/gcc/linaro-5.4-2017.01/840-microblaze-enable-dwarf-eh-support.patch b/patches/gcc/linaro-5.4-2017.01/840-microblaze-enable-dwarf-eh-support.patch
new file mode 100644
index 0000000..9d29090
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/840-microblaze-enable-dwarf-eh-support.patch
@@ -0,0 +1,166 @@
+Fetched from Xilinx gcc git at https://github.com/Xilinx/gcc
+
+From 23c35173490ac2d6348a668dfc9c1a6eb62171f2 Mon Sep 17 00:00:00 2001
+From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
+Date: Mon, 18 Jun 2012 20:18:13 +0200
+Subject: [PATCH] [Patch, microblaze]: Enable DWARF exception handling support.
+
+Changelog
+
+2013-03-18 Edgar E. Iglesias <edgar.iglesias@xilinx.com>
+ David Holsgrove <david.holsgrove@xilinx.com>
+
+ * common/config/microblaze/microblaze-common.c: Remove
+ TARGET_EXCEPT_UNWIND_INFO definition.
+ * config/microblaze/microblaze-protos.h: Add
+ microblaze_eh_return prototype.
+ * gcc/config/microblaze/microblaze.c: (microblaze_must_save_register,
+ microblaze_expand_epilogue, microblaze_return_addr): Handle
+ calls_eh_return
+ (microblaze_eh_return): New function.
+ * gcc/config/microblaze/microblaze.h: Define RETURN_ADDR_OFFSET,
+ EH_RETURN_DATA_REGNO, MB_EH_STACKADJ_REGNUM, EH_RETURN_STACKADJ_RTX,
+ ASM_PREFERRED_EH_DATA_FORMAT
+ * gcc/config/microblaze/microblaze.md: Define eh_return pattern.
+
+Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
+Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
+---
+ gcc/common/config/microblaze/microblaze-common.c | 3 ---
+ gcc/config/microblaze/microblaze-protos.h | 1 +
+ gcc/config/microblaze/microblaze.c | 29 ++++++++++++++++++++----
+ gcc/config/microblaze/microblaze.h | 15 ++++++++++++
+ gcc/config/microblaze/microblaze.md | 11 +++++++++
+ 5 files changed, 52 insertions(+), 7 deletions(-)
+
+Index: b/gcc/common/config/microblaze/microblaze-common.c
+===================================================================
+--- a/gcc/common/config/microblaze/microblaze-common.c
++++ b/gcc/common/config/microblaze/microblaze-common.c
+@@ -37,7 +37,4 @@
+ #undef TARGET_OPTION_OPTIMIZATION_TABLE
+ #define TARGET_OPTION_OPTIMIZATION_TABLE microblaze_option_optimization_table
+
+-#undef TARGET_EXCEPT_UNWIND_INFO
+-#define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info
+-
+ struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
+Index: b/gcc/config/microblaze/microblaze-protos.h
+===================================================================
+--- a/gcc/config/microblaze/microblaze-protos.h
++++ b/gcc/config/microblaze/microblaze-protos.h
+@@ -56,6 +56,7 @@
+ extern int symbol_mentioned_p (rtx);
+ extern int label_mentioned_p (rtx);
+ extern bool microblaze_cannot_force_const_mem (machine_mode, rtx);
++extern void microblaze_eh_return (rtx op0);
+ #endif /* RTX_CODE */
+
+ /* Declare functions in microblaze-c.c. */
+Index: b/gcc/config/microblaze/microblaze.c
+===================================================================
+--- a/gcc/config/microblaze/microblaze.c
++++ b/gcc/config/microblaze/microblaze.c
+@@ -1959,6 +1959,11 @@
+ if (frame_pointer_needed && (regno == HARD_FRAME_POINTER_REGNUM))
+ return 1;
+
++ if (crtl->calls_eh_return
++ && regno == MB_ABI_SUB_RETURN_ADDR_REGNUM) {
++ return 1;
++ }
++
+ if (!crtl->is_leaf)
+ {
+ if (regno == MB_ABI_SUB_RETURN_ADDR_REGNUM)
+@@ -1986,6 +1991,13 @@
+ return 1;
+ }
+
++ if (crtl->calls_eh_return
++ && (regno == EH_RETURN_DATA_REGNO (0)
++ || regno == EH_RETURN_DATA_REGNO (1)))
++ {
++ return 1;
++ }
++
+ return 0;
+ }
+
+@@ -3067,6 +3079,12 @@
+ emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, fsiz_rtx));
+ }
+
++ if (crtl->calls_eh_return)
++ emit_insn (gen_addsi3 (stack_pointer_rtx,
++ stack_pointer_rtx,
++ gen_rtx_raw_REG (SImode,
++ MB_EH_STACKADJ_REGNUM)));
++
+ emit_jump_insn (gen_return_internal (gen_rtx_REG (Pmode, GP_REG_FIRST +
+ MB_ABI_SUB_RETURN_ADDR_REGNUM)));
+ }
+@@ -3364,10 +3382,13 @@
+ if (count != 0)
+ return NULL_RTX;
+
+- return gen_rtx_PLUS (Pmode,
+- get_hard_reg_initial_val (Pmode,
+- MB_ABI_SUB_RETURN_ADDR_REGNUM),
+- GEN_INT (8));
++ return get_hard_reg_initial_val (Pmode,
++ MB_ABI_SUB_RETURN_ADDR_REGNUM);
++}
++
++void microblaze_eh_return (rtx op0)
++{
++ emit_insn (gen_movsi(gen_rtx_MEM(Pmode, stack_pointer_rtx), op0));
+ }
+
+ /* Queue an .ident string in the queue of top-level asm statements.
+Index: b/gcc/config/microblaze/microblaze.h
+===================================================================
+--- a/gcc/config/microblaze/microblaze.h
++++ b/gcc/config/microblaze/microblaze.h
+@@ -184,6 +184,21 @@
+ #define INCOMING_RETURN_ADDR_RTX \
+ gen_rtx_REG (VOIDmode, GP_REG_FIRST + MB_ABI_SUB_RETURN_ADDR_REGNUM)
+
++/* Specifies the offset from INCOMING_RETURN_ADDR_RTX and the actual return PC. */
++#define RETURN_ADDR_OFFSET (8)
++
++/* Describe how we implement __builtin_eh_return. */
++#define EH_RETURN_DATA_REGNO(N) (((N) < 2) ? MB_ABI_FIRST_ARG_REGNUM + (N) : INVALID_REGNUM)
++
++#define MB_EH_STACKADJ_REGNUM MB_ABI_INT_RETURN_VAL2_REGNUM
++#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, MB_EH_STACKADJ_REGNUM)
++
++/* Select a format to encode pointers in exception handling data. CODE
++ is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
++ true if the symbol may be affected by dynamic relocations. */
++#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
++ ((flag_pic || GLOBAL) ? DW_EH_PE_aligned : DW_EH_PE_absptr)
++
+ /* Use DWARF 2 debugging information by default. */
+ #define DWARF2_DEBUGGING_INFO
+ #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+Index: b/gcc/config/microblaze/microblaze.md
+===================================================================
+--- a/gcc/config/microblaze/microblaze.md
++++ b/gcc/config/microblaze/microblaze.md
+@@ -2272,4 +2272,15 @@
+ (set_attr "mode" "SI")
+ (set_attr "length" "4")])
+
++; This is used in compiling the unwind routines.
++(define_expand "eh_return"
++ [(use (match_operand 0 "general_operand" ""))]
++ ""
++ "
++{
++ microblaze_eh_return(operands[0]);
++ DONE;
++}")
++
+ (include "sync.md")
++
diff --git a/patches/gcc/linaro-5.4-2017.01/850-libstdcxx-uclibc-c99.patch b/patches/gcc/linaro-5.4-2017.01/850-libstdcxx-uclibc-c99.patch
new file mode 100644
index 0000000..9e97d94
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/850-libstdcxx-uclibc-c99.patch
@@ -0,0 +1,273 @@
+Allow C99-depending features of libstdc++ with uClibc
+
+The libstdc++ code is fairly restrictive on how it checks for C99
+compatibility: it requires *complete* C99 support to enable certain
+features. For example, uClibc provides a good number of C99 features,
+but not C99 complex number support. For this reason, libstdc++
+completely disables many the standard C++ methods that can in fact
+work because uClibc provides the necessary functions.
+
+This patch is similar and highly inspired from
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58393, but implemented in
+a way that doesn't involve changing the configure.ac script, as
+autoreconfiguring gcc is complicated. It simply relies on the fact
+that uClibc defines the __UCLIBC__ definition.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: b/libstdc++-v3/config/locale/generic/c_locale.h
+===================================================================
+--- a/libstdc++-v3/config/locale/generic/c_locale.h
++++ b/libstdc++-v3/config/locale/generic/c_locale.h
+@@ -70,7 +70,7 @@
+ __builtin_va_list __args;
+ __builtin_va_start(__args, __fmt);
+
+-#ifdef _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args);
+ #else
+ const int __ret = __builtin_vsprintf(__out, __fmt, __args);
+Index: b/libstdc++-v3/config/locale/gnu/c_locale.h
+===================================================================
+--- a/libstdc++-v3/config/locale/gnu/c_locale.h
++++ b/libstdc++-v3/config/locale/gnu/c_locale.h
+@@ -88,7 +88,7 @@
+ __builtin_va_list __args;
+ __builtin_va_start(__args, __fmt);
+
+-#ifdef _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args);
+ #else
+ const int __ret = __builtin_vsprintf(__out, __fmt, __args);
+Index: b/libstdc++-v3/include/bits/basic_string.h
+===================================================================
+--- a/libstdc++-v3/include/bits/basic_string.h
++++ b/libstdc++-v3/include/bits/basic_string.h
+@@ -5239,7 +5239,7 @@
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
+
+-#if __cplusplus >= 201103L && defined(_GLIBCXX_USE_C99)
++#if __cplusplus >= 201103L && (defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__))
+
+ #include <ext/string_conversions.h>
+
+Index: b/libstdc++-v3/include/bits/locale_facets.tcc
+===================================================================
+--- a/libstdc++-v3/include/bits/locale_facets.tcc
++++ b/libstdc++-v3/include/bits/locale_facets.tcc
+@@ -992,7 +992,7 @@
+ char __fbuf[16];
+ __num_base::_S_format_float(__io, __fbuf, __mod);
+
+-#ifdef _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ // Precision is always used except for hexfloat format.
+ const bool __use_prec =
+ (__io.flags() & ios_base::floatfield) != ios_base::floatfield;
+Index: b/libstdc++-v3/include/bits/locale_facets_nonio.tcc
+===================================================================
+--- a/libstdc++-v3/include/bits/locale_facets_nonio.tcc
++++ b/libstdc++-v3/include/bits/locale_facets_nonio.tcc
+@@ -578,7 +578,7 @@
+ {
+ const locale __loc = __io.getloc();
+ const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
+-#ifdef _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ // First try a buffer perhaps big enough.
+ int __cs_size = 64;
+ char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
+Index: b/libstdc++-v3/include/c_compatibility/math.h
+===================================================================
+--- a/libstdc++-v3/include/c_compatibility/math.h
++++ b/libstdc++-v3/include/c_compatibility/math.h
+@@ -56,7 +56,7 @@
+ using std::floor;
+ using std::fmod;
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ using std::fpclassify;
+ using std::isfinite;
+ using std::isinf;
+Index: b/libstdc++-v3/include/c_compatibility/wchar.h
+===================================================================
+--- a/libstdc++-v3/include/c_compatibility/wchar.h
++++ b/libstdc++-v3/include/c_compatibility/wchar.h
+@@ -103,7 +103,7 @@
+ using std::wmemset;
+ using std::wcsftime;
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ using std::wcstold;
+ using std::wcstoll;
+ using std::wcstoull;
+Index: b/libstdc++-v3/include/c_global/cstdlib
+===================================================================
+--- a/libstdc++-v3/include/c_global/cstdlib
++++ b/libstdc++-v3/include/c_global/cstdlib
+@@ -195,7 +195,7 @@
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ #undef _Exit
+ #undef llabs
+Index: b/libstdc++-v3/include/c_global/cwchar
+===================================================================
+--- a/libstdc++-v3/include/c_global/cwchar
++++ b/libstdc++-v3/include/c_global/cwchar
+@@ -232,7 +232,7 @@
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ #undef wcstold
+ #undef wcstoll
+@@ -289,7 +289,7 @@
+ using std::vwscanf;
+ #endif
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ using std::wcstold;
+ using std::wcstoll;
+ using std::wcstoull;
+Index: b/libstdc++-v3/include/c_std/cstdio
+===================================================================
+--- a/libstdc++-v3/include/c_std/cstdio
++++ b/libstdc++-v3/include/c_std/cstdio
+@@ -144,7 +144,7 @@
+ using ::vsprintf;
+ } // namespace std
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ #undef snprintf
+ #undef vfscanf
+Index: b/libstdc++-v3/include/c_std/cstdlib
+===================================================================
+--- a/libstdc++-v3/include/c_std/cstdlib
++++ b/libstdc++-v3/include/c_std/cstdlib
+@@ -192,7 +192,7 @@
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ #undef _Exit
+ #undef llabs
+Index: b/libstdc++-v3/include/c_std/cwchar
+===================================================================
+--- a/libstdc++-v3/include/c_std/cwchar
++++ b/libstdc++-v3/include/c_std/cwchar
+@@ -228,7 +228,7 @@
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ #undef wcstold
+ #undef wcstoll
+Index: b/libstdc++-v3/include/ext/vstring.h
+===================================================================
+--- a/libstdc++-v3/include/ext/vstring.h
++++ b/libstdc++-v3/include/ext/vstring.h
+@@ -2680,7 +2680,7 @@
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
+
+-#if ((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99))
++#if ((__cplusplus >= 201103L) && (defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)))
+
+ #include <ext/string_conversions.h>
+
+Index: b/libstdc++-v3/include/tr1/cstdio
+===================================================================
+--- a/libstdc++-v3/include/tr1/cstdio
++++ b/libstdc++-v3/include/tr1/cstdio
+@@ -33,7 +33,7 @@
+
+ #include <cstdio>
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ namespace std _GLIBCXX_VISIBILITY(default)
+ {
+Index: b/libstdc++-v3/include/tr1/cstdlib
+===================================================================
+--- a/libstdc++-v3/include/tr1/cstdlib
++++ b/libstdc++-v3/include/tr1/cstdlib
+@@ -35,7 +35,7 @@
+
+ #if _GLIBCXX_HOSTED
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ namespace std _GLIBCXX_VISIBILITY(default)
+ {
+Index: b/libstdc++-v3/include/tr1/cwchar
+===================================================================
+--- a/libstdc++-v3/include/tr1/cwchar
++++ b/libstdc++-v3/include/tr1/cwchar
+@@ -52,7 +52,7 @@
+ using std::vwscanf;
+ #endif
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ using std::wcstold;
+ using std::wcstoll;
+ using std::wcstoull;
+Index: b/libstdc++-v3/include/tr1/stdlib.h
+===================================================================
+--- a/libstdc++-v3/include/tr1/stdlib.h
++++ b/libstdc++-v3/include/tr1/stdlib.h
+@@ -33,7 +33,7 @@
+
+ #if _GLIBCXX_HOSTED
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ using std::tr1::atoll;
+ using std::tr1::strtoll;
+Index: b/libstdc++-v3/src/c++11/debug.cc
+===================================================================
+--- a/libstdc++-v3/src/c++11/debug.cc
++++ b/libstdc++-v3/src/c++11/debug.cc
+@@ -788,7 +788,7 @@
+ int __n __attribute__ ((__unused__)),
+ const char* __fmt, _Tp __s) const throw ()
+ {
+-#ifdef _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+ std::snprintf(__buf, __n, __fmt, __s);
+ #else
+ std::sprintf(__buf, __fmt, __s);
+Index: b/libstdc++-v3/include/c_global/cstdio
+===================================================================
+--- a/libstdc++-v3/include/c_global/cstdio
++++ b/libstdc++-v3/include/c_global/cstdio
+@@ -146,7 +146,7 @@
+ using ::vsprintf;
+ } // namespace
+
+-#if _GLIBCXX_USE_C99
++#if defined(_GLIBCXX_USE_C99) || defined(__UCLIBC__)
+
+ #undef snprintf
+ #undef vfscanf
diff --git a/patches/gcc/linaro-5.4-2017.01/860-cilk-wchar.patch b/patches/gcc/linaro-5.4-2017.01/860-cilk-wchar.patch
new file mode 100644
index 0000000..1d9916f
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/860-cilk-wchar.patch
@@ -0,0 +1,56 @@
+[PATCH] cilk: fix build without wchar
+
+When building against uClibc with wchar support disabled, WCHAR_MIN and
+WCHAR_MAX are not defined leading to compilation errors.
+
+Fix it by only including the wchar code if available.
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libcilkrts/include/cilk/reducer_min_max.h | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+Index: b/libcilkrts/include/cilk/reducer_min_max.h
+===================================================================
+--- a/libcilkrts/include/cilk/reducer_min_max.h
++++ b/libcilkrts/include/cilk/reducer_min_max.h
+@@ -3154,7 +3154,9 @@
+ CILK_C_REDUCER_MAX_INSTANCE(char, char, CHAR_MIN)
+ CILK_C_REDUCER_MAX_INSTANCE(unsigned char, uchar, 0)
+ CILK_C_REDUCER_MAX_INSTANCE(signed char, schar, SCHAR_MIN)
++#ifdef WCHAR_MIN
+ CILK_C_REDUCER_MAX_INSTANCE(wchar_t, wchar_t, WCHAR_MIN)
++#endif
+ CILK_C_REDUCER_MAX_INSTANCE(short, short, SHRT_MIN)
+ CILK_C_REDUCER_MAX_INSTANCE(unsigned short, ushort, 0)
+ CILK_C_REDUCER_MAX_INSTANCE(int, int, INT_MIN)
+@@ -3306,7 +3308,9 @@
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(char, char, CHAR_MIN)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(unsigned char, uchar, 0)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(signed char, schar, SCHAR_MIN)
++#ifdef WCHAR_MIN
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(wchar_t, wchar_t, WCHAR_MIN)
++#endif
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(short, short, SHRT_MIN)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(unsigned short, ushort, 0)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(int, int, INT_MIN)
+@@ -3432,7 +3436,9 @@
+ CILK_C_REDUCER_MIN_INSTANCE(char, char, CHAR_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(unsigned char, uchar, CHAR_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(signed char, schar, SCHAR_MAX)
++#ifdef WCHAR_MAX
+ CILK_C_REDUCER_MIN_INSTANCE(wchar_t, wchar_t, WCHAR_MAX)
++#endif
+ CILK_C_REDUCER_MIN_INSTANCE(short, short, SHRT_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(unsigned short, ushort, USHRT_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(int, int, INT_MAX)
+@@ -3584,7 +3590,9 @@
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(char, char, CHAR_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(unsigned char, uchar, CHAR_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(signed char, schar, SCHAR_MAX)
++#ifdef WCHAR_MAX
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(wchar_t, wchar_t, WCHAR_MAX)
++#endif
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(short, short, SHRT_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(unsigned short, ushort, USHRT_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(int, int, INT_MAX)
diff --git a/patches/gcc/linaro-5.4-2017.01/870-xtensa-add-mauto-litpools-option.patch b/patches/gcc/linaro-5.4-2017.01/870-xtensa-add-mauto-litpools-option.patch
new file mode 100644
index 0000000..aa1376c
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/870-xtensa-add-mauto-litpools-option.patch
@@ -0,0 +1,290 @@
+From 6d852ffb43b111a39162135c95249e749c4e285b Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Thu, 6 Aug 2015 01:16:02 +0300
+Subject: [PATCH] xtensa: add -mauto-litpools option
+
+With support from assembler this option allows compiling huge functions,
+where single literal pool at the beginning of a function may not be
+reachable by L32R instructions at its end.
+
+Currently assembler --auto-litpools option cannot deal with literals
+used from multiple locations separated by more than 256 KBytes of code.
+Don't turn constants into literals, instead use MOVI instruction to load
+them into registers and let the assembler turn them into literals as
+necessary.
+
+2015-08-12 Max Filippov <jcmvbkbc@gmail.com>
+gcc/
+ * config/xtensa/constraints.md (define_constraint "Y"): New
+ constraint.
+ * config/xtensa/elf.h (ASM_SPEC): Add m(no-)auto-litpools.
+ * config/xtensa/linux.h (ASM_SPEC): Likewise.
+ * config/xtensa/predicates.md (move_operand): Match constants
+ and symbols in the presence of TARGET_AUTO_LITPOOLS.
+ * config/xtensa/xtensa.c (xtensa_valid_move): Don't allow
+ immediate references to TLS data.
+ (xtensa_emit_move_sequence): Don't force constants to memory in
+ the presence of TARGET_AUTO_LITPOOLS.
+ (print_operand): Add 'y' format, same as default, but capable of
+ printing SF mode constants as well.
+ * config/xtensa/xtensa.md (movsi_internal, movhi_internal)
+ (movsf_internal): Add movi pattern that loads literal.
+ (movsf, movdf): Don't force constants to memory in the presence
+ of TARGET_AUTO_LITPOOLS.
+ (movdf_internal): Add 'Y' constraint.
+ * config/xtensa/xtensa.opt (mauto-litpools): New option.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+Backported from: r226828
+Changes to ChangeLogs and documentation are dropped.
+
+ gcc/config/xtensa/constraints.md | 5 +++++
+ gcc/config/xtensa/elf.h | 4 +++-
+ gcc/config/xtensa/linux.h | 4 +++-
+ gcc/config/xtensa/predicates.md | 3 ++-
+ gcc/config/xtensa/xtensa.c | 19 ++++++++++++++++++-
+ gcc/config/xtensa/xtensa.md | 35 +++++++++++++++++++----------------
+ gcc/config/xtensa/xtensa.opt | 4 ++++
+ 7 files changed, 54 insertions(+), 20 deletions(-)
+
+diff --git a/gcc/config/xtensa/constraints.md b/gcc/config/xtensa/constraints.md
+index 30f4c1f..773d4f9 100644
+--- a/gcc/config/xtensa/constraints.md
++++ b/gcc/config/xtensa/constraints.md
+@@ -111,6 +111,11 @@
+ (and (match_code "const_int")
+ (match_test "xtensa_mask_immediate (ival)")))
+
++(define_constraint "Y"
++ "A constant that can be used in relaxed MOVI instructions."
++ (and (match_code "const_int,const_double,const,symbol_ref,label_ref")
++ (match_test "TARGET_AUTO_LITPOOLS")))
++
+ ;; Memory constraints. Do not use define_memory_constraint here. Doing so
+ ;; causes reload to force some constants into the constant pool, but since
+ ;; the Xtensa constant pool can only be accessed with L32R instructions, it
+diff --git a/gcc/config/xtensa/elf.h b/gcc/config/xtensa/elf.h
+index e59bede..12056f7 100644
+--- a/gcc/config/xtensa/elf.h
++++ b/gcc/config/xtensa/elf.h
+@@ -48,7 +48,9 @@ along with GCC; see the file COPYING3. If not see
+ %{mtarget-align:--target-align} \
+ %{mno-target-align:--no-target-align} \
+ %{mlongcalls:--longcalls} \
+- %{mno-longcalls:--no-longcalls}"
++ %{mno-longcalls:--no-longcalls} \
++ %{mauto-litpools:--auto-litpools} \
++ %{mno-auto-litpools:--no-auto-litpools}"
+
+ #undef LIB_SPEC
+ #define LIB_SPEC "-lc -lsim -lc -lhandlers-sim -lhal"
+diff --git a/gcc/config/xtensa/linux.h b/gcc/config/xtensa/linux.h
+index 675aacf..5b0243a 100644
+--- a/gcc/config/xtensa/linux.h
++++ b/gcc/config/xtensa/linux.h
+@@ -42,7 +42,9 @@ along with GCC; see the file COPYING3. If not see
+ %{mtarget-align:--target-align} \
+ %{mno-target-align:--no-target-align} \
+ %{mlongcalls:--longcalls} \
+- %{mno-longcalls:--no-longcalls}"
++ %{mno-longcalls:--no-longcalls} \
++ %{mauto-litpools:--auto-litpools} \
++ %{mno-auto-litpools:--no-auto-litpools}"
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+
+diff --git a/gcc/config/xtensa/predicates.md b/gcc/config/xtensa/predicates.md
+index e02209e..d7dfa11 100644
+--- a/gcc/config/xtensa/predicates.md
++++ b/gcc/config/xtensa/predicates.md
+@@ -142,7 +142,8 @@
+ (match_test "GET_MODE_CLASS (mode) == MODE_INT
+ && xtensa_simm12b (INTVAL (op))"))
+ (and (match_code "const_int,const_double,const,symbol_ref,label_ref")
+- (match_test "TARGET_CONST16 && CONSTANT_P (op)
++ (match_test "(TARGET_CONST16 || TARGET_AUTO_LITPOOLS)
++ && CONSTANT_P (op)
+ && GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))))
+
+ ;; Accept the floating point constant 1 in the appropriate mode.
+diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
+index eb039ba..206ff80 100644
+--- a/gcc/config/xtensa/xtensa.c
++++ b/gcc/config/xtensa/xtensa.c
+@@ -501,6 +501,9 @@ xtensa_valid_move (machine_mode mode, rtx *operands)
+ {
+ int dst_regnum = xt_true_regnum (operands[0]);
+
++ if (xtensa_tls_referenced_p (operands[1]))
++ return FALSE;
++
+ /* The stack pointer can only be assigned with a MOVSP opcode. */
+ if (dst_regnum == STACK_POINTER_REGNUM)
+ return !TARGET_WINDOWED_ABI
+@@ -1069,7 +1072,7 @@ xtensa_emit_move_sequence (rtx *operands, machine_mode mode)
+ return 1;
+ }
+
+- if (! TARGET_CONST16)
++ if (! TARGET_AUTO_LITPOOLS && ! TARGET_CONST16)
+ {
+ src = force_const_mem (SImode, src);
+ operands[1] = src;
+@@ -2449,6 +2452,20 @@ print_operand (FILE *file, rtx x, int letter)
+ }
+ break;
+
++ case 'y':
++ if (GET_CODE (x) == CONST_DOUBLE &&
++ GET_MODE (x) == SFmode)
++ {
++ REAL_VALUE_TYPE r;
++ long l;
++ REAL_VALUE_FROM_CONST_DOUBLE (r, x);
++ REAL_VALUE_TO_TARGET_SINGLE (r, l);
++ fprintf (file, "0x%08lx", l);
++ break;
++ }
++
++ /* fall through */
++
+ default:
+ if (GET_CODE (x) == REG || GET_CODE (x) == SUBREG)
+ fprintf (file, "%s", reg_names[xt_true_regnum (x)]);
+diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md
+index 6d84384..0e673a3 100644
+--- a/gcc/config/xtensa/xtensa.md
++++ b/gcc/config/xtensa/xtensa.md
+@@ -761,8 +761,8 @@
+ })
+
+ (define_insn "movsi_internal"
+- [(set (match_operand:SI 0 "nonimmed_operand" "=D,D,D,D,R,R,a,q,a,W,a,a,U,*a,*A")
+- (match_operand:SI 1 "move_operand" "M,D,d,R,D,d,r,r,I,i,T,U,r,*A,*r"))]
++ [(set (match_operand:SI 0 "nonimmed_operand" "=D,D,D,D,R,R,a,q,a,a,W,a,a,U,*a,*A")
++ (match_operand:SI 1 "move_operand" "M,D,d,R,D,d,r,r,I,Y,i,T,U,r,*A,*r"))]
+ "xtensa_valid_move (SImode, operands)"
+ "@
+ movi.n\t%0, %x1
+@@ -774,15 +774,16 @@
+ mov\t%0, %1
+ movsp\t%0, %1
+ movi\t%0, %x1
++ movi\t%0, %1
+ const16\t%0, %t1\;const16\t%0, %b1
+ %v1l32r\t%0, %1
+ %v1l32i\t%0, %1
+ %v0s32i\t%1, %0
+ rsr\t%0, ACCLO
+ wsr\t%1, ACCLO"
+- [(set_attr "type" "move,move,move,load,store,store,move,move,move,move,load,load,store,rsr,wsr")
++ [(set_attr "type" "move,move,move,load,store,store,move,move,move,move,move,load,load,store,rsr,wsr")
+ (set_attr "mode" "SI")
+- (set_attr "length" "2,2,2,2,2,2,3,3,3,6,3,3,3,3,3")])
++ (set_attr "length" "2,2,2,2,2,2,3,3,3,3,6,3,3,3,3,3")])
+
+ ;; 16-bit Integer moves
+
+@@ -796,21 +797,22 @@
+ })
+
+ (define_insn "movhi_internal"
+- [(set (match_operand:HI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")
+- (match_operand:HI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]
++ [(set (match_operand:HI 0 "nonimmed_operand" "=D,D,a,a,a,a,U,*a,*A")
++ (match_operand:HI 1 "move_operand" "M,d,r,I,Y,U,r,*A,*r"))]
+ "xtensa_valid_move (HImode, operands)"
+ "@
+ movi.n\t%0, %x1
+ mov.n\t%0, %1
+ mov\t%0, %1
+ movi\t%0, %x1
++ movi\t%0, %1
+ %v1l16ui\t%0, %1
+ %v0s16i\t%1, %0
+ rsr\t%0, ACCLO
+ wsr\t%1, ACCLO"
+- [(set_attr "type" "move,move,move,move,load,store,rsr,wsr")
++ [(set_attr "type" "move,move,move,move,move,load,store,rsr,wsr")
+ (set_attr "mode" "HI")
+- (set_attr "length" "2,2,3,3,3,3,3,3")])
++ (set_attr "length" "2,2,3,3,3,3,3,3,3")])
+
+ ;; 8-bit Integer moves
+
+@@ -881,7 +883,7 @@
+ (match_operand:SF 1 "general_operand" ""))]
+ ""
+ {
+- if (!TARGET_CONST16 && CONSTANT_P (operands[1]))
++ if (!TARGET_CONST16 && !TARGET_AUTO_LITPOOLS && CONSTANT_P (operands[1]))
+ operands[1] = force_const_mem (SFmode, operands[1]);
+
+ if ((!register_operand (operands[0], SFmode)
+@@ -896,8 +898,8 @@
+ })
+
+ (define_insn "movsf_internal"
+- [(set (match_operand:SF 0 "nonimmed_operand" "=f,f,U,D,D,R,a,f,a,W,a,a,U")
+- (match_operand:SF 1 "move_operand" "f,U,f,d,R,d,r,r,f,iF,T,U,r"))]
++ [(set (match_operand:SF 0 "nonimmed_operand" "=f,f,U,D,D,R,a,f,a,a,W,a,a,U")
++ (match_operand:SF 1 "move_operand" "f,U,f,d,R,d,r,r,f,Y,iF,T,U,r"))]
+ "((register_operand (operands[0], SFmode)
+ || register_operand (operands[1], SFmode))
+ && !(FP_REG_P (xt_true_regnum (operands[0]))
+@@ -912,13 +914,14 @@
+ mov\t%0, %1
+ wfr\t%0, %1
+ rfr\t%0, %1
++ movi\t%0, %y1
+ const16\t%0, %t1\;const16\t%0, %b1
+ %v1l32r\t%0, %1
+ %v1l32i\t%0, %1
+ %v0s32i\t%1, %0"
+- [(set_attr "type" "farith,fload,fstore,move,load,store,move,farith,farith,move,load,load,store")
++ [(set_attr "type" "farith,fload,fstore,move,load,store,move,farith,farith,move,move,load,load,store")
+ (set_attr "mode" "SF")
+- (set_attr "length" "3,3,3,2,2,2,3,3,3,6,3,3,3")])
++ (set_attr "length" "3,3,3,2,2,2,3,3,3,3,6,3,3,3")])
+
+ (define_insn "*lsiu"
+ [(set (match_operand:SF 0 "register_operand" "=f")
+@@ -991,7 +994,7 @@
+ (match_operand:DF 1 "general_operand" ""))]
+ ""
+ {
+- if (CONSTANT_P (operands[1]) && !TARGET_CONST16)
++ if (CONSTANT_P (operands[1]) && !TARGET_CONST16 && !TARGET_AUTO_LITPOOLS)
+ operands[1] = force_const_mem (DFmode, operands[1]);
+
+ if (!register_operand (operands[0], DFmode)
+@@ -1002,8 +1005,8 @@
+ })
+
+ (define_insn_and_split "movdf_internal"
+- [(set (match_operand:DF 0 "nonimmed_operand" "=a,W,a,a,U")
+- (match_operand:DF 1 "move_operand" "r,iF,T,U,r"))]
++ [(set (match_operand:DF 0 "nonimmed_operand" "=a,a,W,a,a,U")
++ (match_operand:DF 1 "move_operand" "r,Y,iF,T,U,r"))]
+ "register_operand (operands[0], DFmode)
+ || register_operand (operands[1], DFmode)"
+ "#"
+diff --git a/gcc/config/xtensa/xtensa.opt b/gcc/config/xtensa/xtensa.opt
+index 2fd6cee..21c6e96 100644
+--- a/gcc/config/xtensa/xtensa.opt
++++ b/gcc/config/xtensa/xtensa.opt
+@@ -38,6 +38,10 @@ mtext-section-literals
+ Target
+ Intersperse literal pools with code in the text section
+
++mauto-litpools
++Target Report Mask(AUTO_LITPOOLS)
++Relax literals in assembler and place them automatically in the text section
++
+ mserialize-volatile
+ Target Report Mask(SERIALIZE_VOLATILE)
+ -mno-serialize-volatile Do not serialize volatile memory references with MEMW instructions
+--
+1.8.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/871-xtensa-reimplement-register-spilling.patch b/patches/gcc/linaro-5.4-2017.01/871-xtensa-reimplement-register-spilling.patch
new file mode 100644
index 0000000..4056f8b
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/871-xtensa-reimplement-register-spilling.patch
@@ -0,0 +1,76 @@
+From 40507bf199440082ed69b777986d50c31efe2520 Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Mon, 10 Aug 2015 21:35:20 +0300
+Subject: [PATCH 1/3] xtensa: reimplement register spilling
+
+Spilling windowed registers in userspace is much easier, more portable,
+less error-prone and equally effective as in kernel. Now that register
+spilling syscall is considered obsolete in the xtensa linux kernel
+replace it with CALL12 followed by series of ENTRY in libgcc.
+
+2015-08-18 Max Filippov <jcmvbkbc@gmail.com>
+libgcc/
+ * config/xtensa/lib2funcs.S (__xtensa_libgcc_window_spill): Use
+ CALL12 followed by series of ENTRY to spill windowed registers.
+ (__xtensa_nonlocal_goto): Call __xtensa_libgcc_window_spill
+ instead of making linux spill syscall.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+Backported from: r226962
+
+ libgcc/config/xtensa/lib2funcs.S | 30 +++++++++++++++++++++++-------
+ 1 file changed, 23 insertions(+), 7 deletions(-)
+
+diff --git a/libgcc/config/xtensa/lib2funcs.S b/libgcc/config/xtensa/lib2funcs.S
+index 4d451c8..ef0703f 100644
+--- a/libgcc/config/xtensa/lib2funcs.S
++++ b/libgcc/config/xtensa/lib2funcs.S
+@@ -34,10 +34,29 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ .global __xtensa_libgcc_window_spill
+ .type __xtensa_libgcc_window_spill,@function
+ __xtensa_libgcc_window_spill:
+- entry sp, 32
+- movi a2, 0
+- syscall
++ entry sp, 48
++#if XCHAL_NUM_AREGS > 16
++ call12 1f
++ retw
++ .align 4
++1:
++ .rept (XCHAL_NUM_AREGS - 24) / 12
++ _entry sp, 48
++ mov a12, a0
++ .endr
++ _entry sp, 16
++#if XCHAL_NUM_AREGS % 12 == 0
++ mov a4, a4
++#elif XCHAL_NUM_AREGS % 12 == 4
++ mov a8, a8
++#elif XCHAL_NUM_AREGS % 12 == 8
++ mov a12, a12
++#endif
+ retw
++#else
++ mov a8, a8
++ retw
++#endif
+ .size __xtensa_libgcc_window_spill, .-__xtensa_libgcc_window_spill
+ #endif
+
+@@ -61,10 +80,7 @@ __xtensa_nonlocal_goto:
+ entry sp, 32
+
+ /* Flush registers. */
+- mov a5, a2
+- movi a2, 0
+- syscall
+- mov a2, a5
++ call8 __xtensa_libgcc_window_spill
+
+ /* Because the save area for a0-a3 is stored one frame below
+ the one identified by a2, the only way to restore those
+--
+1.8.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/872-xtensa-use-unwind-dw2-fde-dip-instead-of-unwind-dw2-.patch b/patches/gcc/linaro-5.4-2017.01/872-xtensa-use-unwind-dw2-fde-dip-instead-of-unwind-dw2-.patch
new file mode 100644
index 0000000..9707f68
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/872-xtensa-use-unwind-dw2-fde-dip-instead-of-unwind-dw2-.patch
@@ -0,0 +1,31 @@
+From 7d7a85f75ba218df4a4226e95865fc8fa561cb86 Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Fri, 14 Aug 2015 02:45:02 +0300
+Subject: [PATCH 2/3] xtensa: use unwind-dw2-fde-dip instead of unwind-dw2-fde
+
+This allows having exception cleanup code in binaries that don't
+register their unwind tables.
+
+2015-08-18 Max Filippov <jcmvbkbc@gmail.com>
+libgcc/
+ * config/xtensa/t-windowed (LIB2ADDEH): Replace unwind-dw2-fde
+ with unwind-dw2-fde-dip.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+Backported from: r226963
+
+ libgcc/config/xtensa/t-windowed | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libgcc/config/xtensa/t-windowed b/libgcc/config/xtensa/t-windowed
+index 7d9e9db..a99156c 100644
+--- a/libgcc/config/xtensa/t-windowed
++++ b/libgcc/config/xtensa/t-windowed
+@@ -1,2 +1,2 @@
+ LIB2ADDEH = $(srcdir)/config/xtensa/unwind-dw2-xtensa.c \
+- $(srcdir)/unwind-dw2-fde.c $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
++ $(srcdir)/unwind-dw2-fde-dip.c $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
+--
+1.8.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/873-xtensa-fix-_Unwind_GetCFA.patch b/patches/gcc/linaro-5.4-2017.01/873-xtensa-fix-_Unwind_GetCFA.patch
new file mode 100644
index 0000000..2d8eb7c
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/873-xtensa-fix-_Unwind_GetCFA.patch
@@ -0,0 +1,40 @@
+From b33905dc310f475ddbde4c9fb7230724b2068a2b Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Sat, 15 Aug 2015 05:12:11 +0300
+Subject: [PATCH 3/3] xtensa: fix _Unwind_GetCFA
+
+Returning context->cfa in _Unwind_GetCFA makes CFA point one stack frame
+higher than what was actually used by code at context->ra. This results
+in invalid CFA value in signal frames and premature unwinding completion
+in forced unwinding used by uClibc NPTL thread cancellation.
+Returning context->sp from _Unwind_GetCFA makes all CFA values valid and
+matching code that used them.
+
+2015-08-18 Max Filippov <jcmvbkbc@gmail.com>
+libgcc/
+ * config/xtensa/unwind-dw2-xtensa.c (_Unwind_GetCFA): Return
+ context->sp instead of context->cfa.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+Backported from: r226964
+
+ libgcc/config/xtensa/unwind-dw2-xtensa.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libgcc/config/xtensa/unwind-dw2-xtensa.c b/libgcc/config/xtensa/unwind-dw2-xtensa.c
+index 82b0e63..8e579c7 100644
+--- a/libgcc/config/xtensa/unwind-dw2-xtensa.c
++++ b/libgcc/config/xtensa/unwind-dw2-xtensa.c
+@@ -130,7 +130,7 @@ _Unwind_GetGR (struct _Unwind_Context *context, int index)
+ _Unwind_Word
+ _Unwind_GetCFA (struct _Unwind_Context *context)
+ {
+- return (_Unwind_Ptr) context->cfa;
++ return (_Unwind_Ptr) context->sp;
+ }
+
+ /* Overwrite the saved value for register INDEX in CONTEXT with VAL. */
+--
+1.8.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/874-xtensa-add-uclinux-support.patch b/patches/gcc/linaro-5.4-2017.01/874-xtensa-add-uclinux-support.patch
new file mode 100644
index 0000000..23db3d8
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/874-xtensa-add-uclinux-support.patch
@@ -0,0 +1,174 @@
+From 70c2cb98fb129b4766b5da0f945dc41fd568c77a Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Sat, 22 Aug 2015 08:44:26 +0300
+Subject: [PATCH] xtensa: add uclinux support
+
+2015-10-03 Max Filippov <jcmvbkbc@gmail.com>
+gcc/
+ * config.gcc (xtensa*-*-uclinux*): New configuration.
+ * config/xtensa/uclinux.h: New file.
+ * config/xtensa/uclinux.opt: New file.
+
+libgcc/
+ * config.host (xtensa*-*-uclinux*): New configuration.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+Backported from: r228450
+
+ gcc/config.gcc | 5 ++++
+ gcc/config/xtensa/uclinux.h | 69 +++++++++++++++++++++++++++++++++++++++++++
+ gcc/config/xtensa/uclinux.opt | 32 ++++++++++++++++++++
+ libgcc/config.host | 5 ++++
+ 4 files changed, 111 insertions(+)
+ create mode 100644 gcc/config/xtensa/uclinux.h
+ create mode 100644 gcc/config/xtensa/uclinux.opt
+
+diff --git a/gcc/config.gcc b/gcc/config.gcc
+index c52f5a8..56797bd 100644
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2995,6 +2995,11 @@ xtensa*-*-linux*)
+ tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h xtensa/linux.h"
+ tmake_file="${tmake_file} xtensa/t-xtensa"
+ ;;
++xtensa*-*-uclinux*)
++ tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h xtensa/uclinux.h"
++ tmake_file="${tmake_file} xtensa/t-xtensa"
++ extra_options="${extra_options} xtensa/uclinux.opt"
++ ;;
+ am33_2.0-*-linux*)
+ tm_file="mn10300/mn10300.h dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h mn10300/linux.h"
+ gas=yes gnu_ld=yes
+diff --git a/gcc/config/xtensa/uclinux.h b/gcc/config/xtensa/uclinux.h
+new file mode 100644
+index 0000000..4606020
+--- /dev/null
++++ b/gcc/config/xtensa/uclinux.h
+@@ -0,0 +1,69 @@
++/* Xtensa uClinux configuration.
++ Derived from the configuration for GCC for Intel i386 running Linux.
++ Copyright (C) 2001-2015 Free Software Foundation, Inc.
++
++This file is part of GCC.
++
++GCC is free software; you can redistribute it and/or modify it under
++the terms of the GNU General Public License as published by the Free
++Software Foundation; either version 3, or (at your option) any later
++version.
++
++GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++WARRANTY; without even the implied warranty of MERCHANTABILITY or
++FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
++for more details.
++
++You should have received a copy of the GNU General Public License
++along with GCC; see the file COPYING3. If not see
++<http://www.gnu.org/licenses/>. */
++
++#undef TARGET_OS_CPP_BUILTINS
++#define TARGET_OS_CPP_BUILTINS() \
++ do \
++ { \
++ GNU_USER_TARGET_OS_CPP_BUILTINS (); \
++ builtin_define ("__uClinux__"); \
++ } \
++ while (0)
++
++#undef SUBTARGET_CPP_SPEC
++#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
++
++#undef SIZE_TYPE
++#define SIZE_TYPE "unsigned int"
++
++#undef PTRDIFF_TYPE
++#define PTRDIFF_TYPE "int"
++
++#undef WCHAR_TYPE
++#define WCHAR_TYPE "long int"
++
++#undef WCHAR_TYPE_SIZE
++#define WCHAR_TYPE_SIZE 32
++
++#undef ASM_SPEC
++#define ASM_SPEC \
++ "%{mtext-section-literals:--text-section-literals} \
++ %{mno-text-section-literals:--no-text-section-literals} \
++ %{mtarget-align:--target-align} \
++ %{mno-target-align:--no-target-align} \
++ %{mlongcalls:--longcalls} \
++ %{mno-longcalls:--no-longcalls} \
++ %{mauto-litpools:--auto-litpools} \
++ %{mno-auto-litpools:--no-auto-litpools}"
++
++#undef LINK_SPEC
++#define LINK_SPEC "%{!no-elf2flt:%{!elf2flt*:-elf2flt}}"
++
++#undef LOCAL_LABEL_PREFIX
++#define LOCAL_LABEL_PREFIX "."
++
++/* Always enable "-fpic" for Xtensa Linux. */
++#define XTENSA_ALWAYS_PIC 1
++
++#undef TARGET_LIBC_HAS_FUNCTION
++#define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
++
++#undef DBX_REGISTER_NUMBER
++
+diff --git a/gcc/config/xtensa/uclinux.opt b/gcc/config/xtensa/uclinux.opt
+new file mode 100644
+index 0000000..95ef777
+--- /dev/null
++++ b/gcc/config/xtensa/uclinux.opt
+@@ -0,0 +1,32 @@
++; Xtensa uClinux options.
++
++; Copyright (C) 2015 Free Software Foundation, Inc.
++;
++; This file is part of GCC.
++;
++; GCC is free software; you can redistribute it and/or modify it under
++; the terms of the GNU General Public License as published by the Free
++; Software Foundation; either version 3, or (at your option) any later
++; version.
++;
++; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++; WARRANTY; without even the implied warranty of MERCHANTABILITY or
++; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
++; for more details.
++;
++; You should have received a copy of the GNU General Public License
++; along with GCC; see the file COPYING3. If not see
++; <http://www.gnu.org/licenses/>.
++
++; See the GCC internals manual (options.texi) for a description of
++; this file's format.
++
++; Please try to keep this file in ASCII collating order.
++
++elf2flt
++Driver
++
++elf2flt=
++Driver JoinedOrMissing
++
++; This comment is to ensure we retain the blank line above.
+diff --git a/libgcc/config.host b/libgcc/config.host
+index 2c64756..2ee92c1 100644
+--- a/libgcc/config.host
++++ b/libgcc/config.host
+@@ -1295,6 +1295,11 @@ xtensa*-*-linux*)
+ tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
+ md_unwind_header=xtensa/linux-unwind.h
+ ;;
++xtensa*-*-uclinux*)
++ tmake_file="$tmake_file xtensa/t-xtensa xtensa/t-linux t-slibgcc-libgcc"
++ md_unwind_header=xtensa/linux-unwind.h
++ extra_parts="$extra_parts crtbeginS.o crtbeginT.o crtendS.o"
++ ;;
+ am33_2.0-*-linux*)
+ # Don't need crtbeginT.o from *-*-linux* default.
+ extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"
+--
+1.8.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch b/patches/gcc/linaro-5.4-2017.01/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch
new file mode 100644
index 0000000..d128596
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/875-xtensa-fix-xtensa_fallback_frame_state-for-call0-ABI.patch
@@ -0,0 +1,108 @@
+From 7d3692c6933f7ff87bf110dede8e33e922b164c6 Mon Sep 17 00:00:00 2001
+From: jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Tue, 15 Sep 2015 19:30:32 +0000
+Subject: [PATCH] xtensa: fix xtensa_fallback_frame_state for call0 ABI
+
+2015-09-15 Max Filippov <jcmvbkbc@gmail.com>
+gcc/
+ * config/xtensa/xtensa.h (DWARF_ALT_FRAME_RETURN_COLUMN): New
+ definition.
+ (DWARF_FRAME_REGISTERS): Reserve space for one extra register in
+ call0 ABI.
+
+libgcc/
+ * config/xtensa/linux-unwind.h (xtensa_fallback_frame_state):
+ Add support for call0 ABI.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227809 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ gcc/config/xtensa/xtensa.h | 4 +++-
+ libgcc/config/xtensa/linux-unwind.h | 30 ++++++++++++++++++++++++++++--
+ 2 files changed, 31 insertions(+), 3 deletions(-)
+
+diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
+index 584080b..e165def 100644
+--- a/gcc/config/xtensa/xtensa.h
++++ b/gcc/config/xtensa/xtensa.h
+@@ -813,7 +813,9 @@ typedef struct xtensa_args
+ for debugging. */
+ #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, 0)
+ #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (0)
+-#define DWARF_FRAME_REGISTERS 16
++#define DWARF_ALT_FRAME_RETURN_COLUMN 16
++#define DWARF_FRAME_REGISTERS (DWARF_ALT_FRAME_RETURN_COLUMN \
++ + (TARGET_WINDOWED_ABI ? 0 : 1))
+ #define EH_RETURN_DATA_REGNO(N) ((N) < 2 ? (N) + 2 : INVALID_REGNUM)
+ #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
+ (flag_pic \
+diff --git a/libgcc/config/xtensa/linux-unwind.h b/libgcc/config/xtensa/linux-unwind.h
+index 9daf738..9a67b5d 100644
+--- a/libgcc/config/xtensa/linux-unwind.h
++++ b/libgcc/config/xtensa/linux-unwind.h
+@@ -52,7 +52,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ #define ENTRY_BYTE 0x36
+ #endif
+
+-#ifdef __XTENSA_WINDOWED_ABI__
+ #define MD_FALLBACK_FRAME_STATE_FOR xtensa_fallback_frame_state
+
+ static _Unwind_Reason_Code
+@@ -61,6 +60,10 @@ xtensa_fallback_frame_state (struct _Unwind_Context *context,
+ {
+ unsigned char *pc = context->ra;
+ struct sigcontext *sc;
++#if defined(__XTENSA_CALL0_ABI__)
++ _Unwind_Ptr new_cfa;
++ int i;
++#endif
+
+ struct rt_sigframe {
+ siginfo_t info;
+@@ -76,6 +79,7 @@ xtensa_fallback_frame_state (struct _Unwind_Context *context,
+ || pc[5] != SYSC_BYTE2)
+ return _URC_END_OF_STACK;
+
++#if defined(__XTENSA_WINDOWED_ABI__)
+ rt_ = context->sp;
+ sc = &rt_->uc.uc_mcontext;
+ fs->signal_regs = (_Unwind_Word *) sc->sc_a;
+@@ -90,11 +94,33 @@ xtensa_fallback_frame_state (struct _Unwind_Context *context,
+ }
+ else
+ fs->signal_ra = sc->sc_pc;
++#elif defined(__XTENSA_CALL0_ABI__)
++ rt_ = context->cfa;
++ sc = &rt_->uc.uc_mcontext;
++
++ new_cfa = (_Unwind_Ptr) sc;
++ fs->regs.cfa_how = CFA_REG_OFFSET;
++ fs->regs.cfa_reg = __LIBGCC_STACK_POINTER_REGNUM__;
++ fs->regs.cfa_offset = new_cfa - (_Unwind_Ptr) context->cfa;
++
++ for (i = 0; i < 16; i++)
++ {
++ fs->regs.reg[i].how = REG_SAVED_OFFSET;
++ fs->regs.reg[i].loc.offset = (_Unwind_Ptr) &(sc->sc_a[i]) - new_cfa;
++ }
++
++ fs->regs.reg[__LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__].how =
++ REG_SAVED_VAL_OFFSET;
++ fs->regs.reg[__LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__].loc.offset =
++ (_Unwind_Ptr) (sc->sc_pc) - new_cfa;
++ fs->retaddr_column = __LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__;
++#else
++#error Unsupported Xtensa ABI
++#endif
+
+ fs->signal_frame = 1;
+ return _URC_NO_REASON;
+ }
+
+-#endif /* __XTENSA_WINDOWED_ABI__ */
+
+ #endif /* ifdef inhibit_libc */
+--
+2.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/876-xtensa-fix-libgcc-build-with-text-section-literals.patch b/patches/gcc/linaro-5.4-2017.01/876-xtensa-fix-libgcc-build-with-text-section-literals.patch
new file mode 100644
index 0000000..4b2334a
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/876-xtensa-fix-libgcc-build-with-text-section-literals.patch
@@ -0,0 +1,67 @@
+From 44fbad9f8bed55f690f251b530ab38df1e696d95 Mon Sep 17 00:00:00 2001
+From: jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 17 Feb 2016 20:21:48 +0000
+Subject: [PATCH] xtensa: fix libgcc build with --text-section-literals
+
+Functions __muldf3_aux, __divdf3_aux, __mulsf3_aux and __divsf3_aux
+don't start with leaf_entry, so they need explicit .literal_position,
+otherwise libgcc build fails in the presence of --text-section-literals.
+
+2016-02-17 Max Filippov <jcmvbkbc@gmail.com>
+libgcc/
+ * config/xtensa/ieee754-df.S (__muldf3_aux, __divdf3_aux): Add
+ .literal_position before the function.
+ * config/xtensa/ieee754-sf.S (__mulsf3_aux, __divsf3_aux):
+ Likewise.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233505 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ libgcc/config/xtensa/ieee754-df.S | 2 ++
+ libgcc/config/xtensa/ieee754-sf.S | 2 ++
+ 2 files changed, 4 insertions(+)
+
+diff --git a/libgcc/config/xtensa/ieee754-df.S b/libgcc/config/xtensa/ieee754-df.S
+index a7ae209..26f2abd 100644
+--- a/libgcc/config/xtensa/ieee754-df.S
++++ b/libgcc/config/xtensa/ieee754-df.S
+@@ -606,6 +606,7 @@ __subdf3:
+ #define XCHAL_NO_MUL 1
+ #endif
+
++ .literal_position
+ __muldf3_aux:
+
+ /* Handle unusual cases (zeros, subnormals, NaNs and Infinities).
+@@ -1216,6 +1217,7 @@ __muldf3:
+
+ #ifdef L_divdf3
+
++ .literal_position
+ /* Division */
+ __divdf3_aux:
+
+diff --git a/libgcc/config/xtensa/ieee754-sf.S b/libgcc/config/xtensa/ieee754-sf.S
+index 7e397dc..a5e6e3c 100644
+--- a/libgcc/config/xtensa/ieee754-sf.S
++++ b/libgcc/config/xtensa/ieee754-sf.S
+@@ -487,6 +487,7 @@ __subsf3:
+ #define XCHAL_NO_MUL 1
+ #endif
+
++ .literal_position
+ __mulsf3_aux:
+
+ /* Handle unusual cases (zeros, subnormals, NaNs and Infinities).
+@@ -884,6 +885,7 @@ __mulsf3:
+
+ #ifdef L_divsf3
+
++ .literal_position
+ /* Division */
+ __divsf3_aux:
+
+--
+2.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/877-xtensa-don-t-use-unwind-dw2-fde-dip-with-elf-targets.patch b/patches/gcc/linaro-5.4-2017.01/877-xtensa-don-t-use-unwind-dw2-fde-dip-with-elf-targets.patch
new file mode 100644
index 0000000..6e0ce6e
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/877-xtensa-don-t-use-unwind-dw2-fde-dip-with-elf-targets.patch
@@ -0,0 +1,62 @@
+From d28554ee61a1ab1263274d66386e4051bca0ce05 Mon Sep 17 00:00:00 2001
+From: jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Tue, 18 Oct 2016 19:12:19 +0000
+Subject: [PATCH] xtensa: don't use unwind-dw2-fde-dip with elf targets
+
+Define LIB2ADDEH_XTENSA_UNWIND_DW2_FDE to unwind-dw2-fde.c in
+xtensa/t-elf and to unwind-dw2-fde-dip.c in xtensa/t-linux and use
+LIB2ADDEH_XTENSA_UNWIND_DW2_FDE in LIB2ADDEH definition.
+
+This fixes build for elf target with windowed xtensa core that currently
+breaks with the following error message:
+
+ unwind-dw2-fde-dip.c:36:40: fatal error: elf.h: No such file or directory
+
+2016-10-18 Max Filippov <jcmvbkbc@gmail.com>
+libgcc/
+ * config/xtensa/t-elf (LIB2ADDEH_XTENSA_UNWIND_DW2_FDE): New
+ definition.
+ * config/xtensa/t-linux (LIB2ADDEH_XTENSA_UNWIND_DW2_FDE): New
+ definition.
+ * config/xtensa/t-windowed (LIB2ADDEH): Use
+ LIB2ADDEH_XTENSA_UNWIND_DW2_FDE defined by either xtensa/t-elf
+ or xtensa/t-linux.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241313 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ libgcc/config/xtensa/t-elf | 2 ++
+ libgcc/config/xtensa/t-linux | 2 ++
+ libgcc/config/xtensa/t-windowed | 2 +-
+ 3 files changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/libgcc/config/xtensa/t-elf b/libgcc/config/xtensa/t-elf
+index 59d5121..967cf9b 100644
+--- a/libgcc/config/xtensa/t-elf
++++ b/libgcc/config/xtensa/t-elf
+@@ -3,3 +3,5 @@ CRTSTUFF_T_CFLAGS += -mlongcalls
+ CRTSTUFF_T_CFLAGS_S += -mlongcalls
+
+ HOST_LIBGCC2_CFLAGS += -mlongcalls
++
++LIB2ADDEH_XTENSA_UNWIND_DW2_FDE = $(srcdir)/unwind-dw2-fde.c
+diff --git a/libgcc/config/xtensa/t-linux b/libgcc/config/xtensa/t-linux
+index 6f4ae89..412ecca 100644
+--- a/libgcc/config/xtensa/t-linux
++++ b/libgcc/config/xtensa/t-linux
+@@ -1 +1,3 @@
+ SHLIB_MAPFILES += $(srcdir)/config/xtensa/libgcc-glibc.ver
++
++LIB2ADDEH_XTENSA_UNWIND_DW2_FDE = $(srcdir)/unwind-dw2-fde-dip.c
+diff --git a/libgcc/config/xtensa/t-windowed b/libgcc/config/xtensa/t-windowed
+index a99156c..f140136 100644
+--- a/libgcc/config/xtensa/t-windowed
++++ b/libgcc/config/xtensa/t-windowed
+@@ -1,2 +1,2 @@
+ LIB2ADDEH = $(srcdir)/config/xtensa/unwind-dw2-xtensa.c \
+- $(srcdir)/unwind-dw2-fde-dip.c $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
++ $(LIB2ADDEH_XTENSA_UNWIND_DW2_FDE) $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
+--
+2.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/878-xtensa-Fix-PR-target-78603.patch b/patches/gcc/linaro-5.4-2017.01/878-xtensa-Fix-PR-target-78603.patch
new file mode 100644
index 0000000..4646d3c
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/878-xtensa-Fix-PR-target-78603.patch
@@ -0,0 +1,35 @@
+From b18fe564ed233ee0965b3a980edc5dbe069b80ea Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Tue, 29 Nov 2016 13:09:17 -0800
+Subject: [PATCH] xtensa: Fix PR target/78603
+
+2016-11-29 Max Filippov <jcmvbkbc@gmail.com>
+gcc/
+ * config/xtensa/xtensa.c (hwloop_optimize): Don't emit zero
+ overhead loop start between a call and its CALL_ARG_LOCATION
+ note.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ gcc/config/xtensa/xtensa.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
+index 206ff80..36ab1e3 100644
+--- a/gcc/config/xtensa/xtensa.c
++++ b/gcc/config/xtensa/xtensa.c
+@@ -4182,7 +4182,10 @@ hwloop_optimize (hwloop_info loop)
+ entry_after = BB_END (entry_bb);
+ while (DEBUG_INSN_P (entry_after)
+ || (NOTE_P (entry_after)
+- && NOTE_KIND (entry_after) != NOTE_INSN_BASIC_BLOCK))
++ && NOTE_KIND (entry_after) != NOTE_INSN_BASIC_BLOCK
++ /* Make sure we don't split a call and its corresponding
++ CALL_ARG_LOCATION note. */
++ && NOTE_KIND (entry_after) != NOTE_INSN_CALL_ARG_LOCATION))
+ entry_after = PREV_INSN (entry_after);
+
+ emit_insn_after (seq, entry_after);
+--
+2.1.4
+
diff --git a/patches/gcc/linaro-5.4-2017.01/890-fix-m68k-compile.patch b/patches/gcc/linaro-5.4-2017.01/890-fix-m68k-compile.patch
new file mode 100644
index 0000000..6e63de0
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/890-fix-m68k-compile.patch
@@ -0,0 +1,15 @@
+remove unused header, which breaks the toolchain building
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config/m68k/linux-atomic.c gcc-5.3.0/libgcc/config/m68k/linux-atomic.c
+--- gcc-5.3.0.orig/libgcc/config/m68k/linux-atomic.c 2015-01-05 13:33:28.000000000 +0100
++++ gcc-5.3.0/libgcc/config/m68k/linux-atomic.c 2016-03-19 09:25:07.000000000 +0100
+@@ -33,7 +33,6 @@
+ using the kernel helper defined below. There is no support for
+ 64-bit operations yet. */
+
+-#include <asm/unistd.h>
+ #include <stdbool.h>
+
+ #ifndef __NR_atomic_cmpxchg_32
diff --git a/patches/gcc/linaro-5.4-2017.01/891-fix-m68k-uclinux.patch b/patches/gcc/linaro-5.4-2017.01/891-fix-m68k-uclinux.patch
new file mode 100644
index 0000000..4e186bd
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/891-fix-m68k-uclinux.patch
@@ -0,0 +1,18 @@
+avoids internal compiler error while compiling linux-atomic.c
+See here:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53833
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config.host gcc-5.3.0/libgcc/config.host
+--- gcc-5.3.0.orig/libgcc/config.host 2015-10-01 14:01:18.000000000 +0200
++++ gcc-5.3.0/libgcc/config.host 2016-04-26 21:30:25.353691745 +0200
+@@ -794,7 +794,7 @@
+ m68k*-*-openbsd*)
+ ;;
+ m68k-*-uclinux*) # Motorola m68k/ColdFire running uClinux with uClibc
+- tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
++ tmake_file="$tmake_file m68k/t-floatlib"
+ md_unwind_header=m68k/linux-unwind.h
+ ;;
+ m68k-*-linux*) # Motorola m68k's running GNU/Linux
diff --git a/patches/gcc/linaro-5.4-2017.01/892-microblaze-uclibc.patch b/patches/gcc/linaro-5.4-2017.01/892-microblaze-uclibc.patch
new file mode 100644
index 0000000..a8eb5a6
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/892-microblaze-uclibc.patch
@@ -0,0 +1,24 @@
+Add dynamic linker support for uClibc
+
+Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
+
+diff -Nur gcc-5.3.0.orig/gcc/config/microblaze/linux.h gcc-5.3.0/gcc/config/microblaze/linux.h
+--- gcc-5.3.0.orig/gcc/config/microblaze/linux.h 2015-05-28 16:08:19.000000000 +0200
++++ gcc-5.3.0/gcc/config/microblaze/linux.h 2016-05-13 09:21:01.579262885 +0200
+@@ -28,7 +28,15 @@
+ #undef TLS_NEEDS_GOT
+ #define TLS_NEEDS_GOT 1
+
+-#define DYNAMIC_LINKER "/lib/ld.so.1"
++#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
++#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
++
++#if DEFAULT_LIBC == LIBC_UCLIBC
++#define DYNAMIC_LINKER UCLIBC_DYNAMIC_LINKER
++#else
++#define DYNAMIC_LINKER GLIBC_DYNAMIC_LINKER
++#endif
++
+ #undef SUBTARGET_EXTRA_SPECS
+ #define SUBTARGET_EXTRA_SPECS \
+ { "dynamic_linker", DYNAMIC_LINKER }
diff --git a/patches/gcc/linaro-5.4-2017.01/902-unwind-fix-for-musl.patch b/patches/gcc/linaro-5.4-2017.01/902-unwind-fix-for-musl.patch
new file mode 100644
index 0000000..ef47054
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/902-unwind-fix-for-musl.patch
@@ -0,0 +1,36 @@
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 22 Apr 2015 14:20:01 +0000 (+0000)
+Subject: unwind fix for musl
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=a2e31d0681d8a47389b8a3552622fbd9827bcef4
+
+unwind fix for musl
+
+On behalf of szabolcs.nagy@arm.com
+
+2015-04-22 Gregor Richards <gregor.richards@uwaterloo.ca>
+ Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * unwind-dw2-fde-dip.c (USE_PT_GNU_EH_FRAME): Define it on
+ Linux if target provides dl_iterate_phdr.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222328 138bc75d-0d04-0410-961f-82ee72b054a4
+---
+
+Index: b/libgcc/unwind-dw2-fde-dip.c
+===================================================================
+--- a/libgcc/unwind-dw2-fde-dip.c
++++ b/libgcc/unwind-dw2-fde-dip.c
+@@ -59,6 +59,12 @@
+
+ #if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
+ && defined(TARGET_DL_ITERATE_PHDR) \
++ && defined(__linux__)
++# define USE_PT_GNU_EH_FRAME
++#endif
++
++#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
++ && defined(TARGET_DL_ITERATE_PHDR) \
+ && (defined(__DragonFly__) || defined(__FreeBSD__))
+ # define ElfW __ElfN
+ # define USE_PT_GNU_EH_FRAME
diff --git a/patches/gcc/linaro-5.4-2017.01/910-nios2-bad-multilib-default.patch b/patches/gcc/linaro-5.4-2017.01/910-nios2-bad-multilib-default.patch
new file mode 100644
index 0000000..d94697f
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/910-nios2-bad-multilib-default.patch
@@ -0,0 +1,28 @@
+diff -urpN gcc-5.3.0.orig/gcc/config/nios2/nios2.h gcc-5.3.0/gcc/config/nios2/nios2.h
+--- gcc-5.3.0.orig/gcc/config/nios2/nios2.h 2016-04-18 10:32:41.046254061 -0700
++++ gcc-5.3.0/gcc/config/nios2/nios2.h 2016-04-18 10:37:25.998841674 -0700
+@@ -55,11 +55,11 @@
+ #if TARGET_ENDIAN_DEFAULT == 0
+ # define ASM_SPEC "%{!meb:-EL} %{meb:-EB}"
+ # define LINK_SPEC_ENDIAN "%{!meb:-EL} %{meb:-EB}"
+-# define MULTILIB_DEFAULTS { "EL" }
++# define MULTILIB_DEFAULTS { "mel" }
+ #else
+ # define ASM_SPEC "%{!mel:-EB} %{mel:-EL}"
+ # define LINK_SPEC_ENDIAN "%{!mel:-EB} %{mel:-EL}"
+-# define MULTILIB_DEFAULTS { "EB" }
++# define MULTILIB_DEFAULTS { "meb" }
+ #endif
+
+ #define LINK_SPEC LINK_SPEC_ENDIAN \
+diff -urpN gcc-5.3.0.orig/gcc/config/nios2/t-nios2 gcc-5.3.0/gcc/config/nios2/t-nios2
+--- gcc-5.3.0.orig/gcc/config/nios2/t-nios2 2016-04-18 10:32:41.046254061 -0700
++++ gcc-5.3.0/gcc/config/nios2/t-nios2 2016-04-18 10:36:41.091312157 -0700
+@@ -22,6 +22,5 @@
+ # MULTILIB_DIRNAMES = nomul mulx fpu-60-1 fpu-60-2
+ # MULTILIB_EXCEPTIONS =
+
+-# MULTILIB_OPTIONS += EL/EB
++# MULTILIB_OPTIONS += mel/meb
+ # MULTILIB_DIRNAMES += le be
+-# MULTILIB_MATCHES += EL=mel EB=meb
diff --git a/patches/gcc/linaro-5.4-2017.01/930-libgcc-disable-split-stack-nothreads.patch b/patches/gcc/linaro-5.4-2017.01/930-libgcc-disable-split-stack-nothreads.patch
new file mode 100644
index 0000000..07f9a73
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/930-libgcc-disable-split-stack-nothreads.patch
@@ -0,0 +1,14 @@
+disable split-stack for non-thread builds
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config/t-stack gcc-5.3.0/libgcc/config/t-stack
+--- gcc-5.3.0.orig/libgcc/config/t-stack 2010-10-01 21:31:49.000000000 +0200
++++ gcc-5.3.0/libgcc/config/t-stack 2016-03-07 03:25:32.000000000 +0100
+@@ -1,4 +1,6 @@
+ # Makefile fragment to provide generic support for -fsplit-stack.
+ # This should be used in config.host for any host which supports
+ # -fsplit-stack.
++ifeq ($(enable_threads),yes)
+ LIB2ADD_ST += $(srcdir)/generic-morestack.c $(srcdir)/generic-morestack-thread.c
++endif
diff --git a/patches/gcc/linaro-5.4-2017.01/940-uclinux-enable-threads.patch b/patches/gcc/linaro-5.4-2017.01/940-uclinux-enable-threads.patch
new file mode 100644
index 0000000..490a55b
--- /dev/null
+++ b/patches/gcc/linaro-5.4-2017.01/940-uclinux-enable-threads.patch
@@ -0,0 +1,19 @@
+Enable POSIX threads for uClinux targets
+Reported upstream:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.4.0.orig/gcc/config.gcc gcc-5.4.0/gcc/config.gcc
+--- gcc-5.4.0.orig/gcc/config.gcc 2015-09-10 16:17:53.000000000 +0200
++++ gcc-5.4.0/gcc/config.gcc 2016-07-01 21:26:02.772958441 +0200
+@@ -808,6 +808,9 @@
+ *-*-uclinux*)
+ extra_options="$extra_options gnu-user.opt"
+ use_gcc_stdint=wrap
++ case ${enable_threads} in
++ "" | yes | posix) thread_file='posix' ;;
++ esac
+ tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
+ ;;
+ *-*-rdos*)