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-rw-r--r--patches/gcc/6.3.0/100-uclibc-conf.patch15
-rw-r--r--patches/gcc/6.3.0/301-missing-execinfo_h.patch13
-rw-r--r--patches/gcc/6.3.0/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch160
-rw-r--r--patches/gcc/6.3.0/380-gcc-plugin-POSIX-include-sys-select-h.patch11
-rw-r--r--patches/gcc/6.3.0/810-arm-softfloat-libgcc.patch30
-rw-r--r--patches/gcc/6.3.0/830-arm_unbreak_armv4t.patch15
-rw-r--r--patches/gcc/6.3.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch69
-rw-r--r--patches/gcc/6.3.0/860-cilk-wchar.patch56
-rw-r--r--patches/gcc/6.3.0/870-xtensa-don-t-use-unwind-dw2-fde-dip-with-elf-targets.patch62
-rw-r--r--patches/gcc/6.3.0/871-xtensa-Fix-PR-target-78118.patch318
-rw-r--r--patches/gcc/6.3.0/872-xtensa-Fix-PR-target-78603.patch35
-rw-r--r--patches/gcc/6.3.0/890-fix-m68k-compile.patch15
-rw-r--r--patches/gcc/6.3.0/891-fix-m68k-uclinux.patch18
-rw-r--r--patches/gcc/6.3.0/892-libgcc-mkmap-symver-support-skip_underscore.patch60
-rw-r--r--patches/gcc/6.3.0/893-libgcc-config-bfin-use-the-generic-linker-version-in.patch1944
-rw-r--r--patches/gcc/6.3.0/894-libgcc-fix-DWARF-compilation-with-FDPIC-targets.patch59
-rw-r--r--patches/gcc/6.3.0/895-bfin-define-REENTRANT.patch17
-rw-r--r--patches/gcc/6.3.0/910-nios2-bad-multilib-default.patch28
-rw-r--r--patches/gcc/6.3.0/930-libgcc-disable-split-stack-nothreads.patch14
-rw-r--r--patches/gcc/6.3.0/940-uclinux-enable-threads.patch19
20 files changed, 2958 insertions, 0 deletions
diff --git a/patches/gcc/6.3.0/100-uclibc-conf.patch b/patches/gcc/6.3.0/100-uclibc-conf.patch
new file mode 100644
index 0000000..73d1f0d
--- /dev/null
+++ b/patches/gcc/6.3.0/100-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 = $H_REAL_HOST ] ; then
+ make bootstrap || exit 1
+ make install || exit 1
diff --git a/patches/gcc/6.3.0/301-missing-execinfo_h.patch b/patches/gcc/6.3.0/301-missing-execinfo_h.patch
new file mode 100644
index 0000000..2d0e7ba
--- /dev/null
+++ b/patches/gcc/6.3.0/301-missing-execinfo_h.patch
@@ -0,0 +1,13 @@
+Index: b/boehm-gc/include/gc.h
+===================================================================
+--- a/boehm-gc/include/gc.h
++++ b/boehm-gc/include/gc.h
+@@ -503,7 +503,7 @@
+ #if defined(__linux__) || defined(__GLIBC__)
+ # include <features.h>
+ # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
+- && !defined(__ia64__)
++ && !defined(__ia64__) && !defined(__UCLIBC__)
+ # ifndef GC_HAVE_BUILTIN_BACKTRACE
+ # define GC_HAVE_BUILTIN_BACKTRACE
+ # endif
diff --git a/patches/gcc/6.3.0/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch b/patches/gcc/6.3.0/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch
new file mode 100644
index 0000000..d8986d5
--- /dev/null
+++ b/patches/gcc/6.3.0/370-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch
@@ -0,0 +1,160 @@
+diff -urN gcc-5.3.0.orig/config/gcc-plugin.m4 gcc-5.3.0/config/gcc-plugin.m4
+--- gcc-5.3.0.orig/config/gcc-plugin.m4 2015-12-19 14:39:04.120734900 +0000
++++ gcc-5.3.0/config/gcc-plugin.m4 2015-12-20 01:28:45.381965300 +0000
+@@ -20,6 +20,9 @@
+
+ pluginlibs=
+
++ PICFLAG="-fPIC"
++ UNDEFINEDPREAMBLE="extern int X;"
++ UNDEFINEDCODE="return X == 0;"
+ case "${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/6.3.0/380-gcc-plugin-POSIX-include-sys-select-h.patch b/patches/gcc/6.3.0/380-gcc-plugin-POSIX-include-sys-select-h.patch
new file mode 100644
index 0000000..12ef48e
--- /dev/null
+++ b/patches/gcc/6.3.0/380-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/6.3.0/810-arm-softfloat-libgcc.patch b/patches/gcc/6.3.0/810-arm-softfloat-libgcc.patch
new file mode 100644
index 0000000..5efa7fd
--- /dev/null
+++ b/patches/gcc/6.3.0/810-arm-softfloat-libgcc.patch
@@ -0,0 +1,30 @@
+Index: b/gcc/config/arm/linux-elf.h
+===================================================================
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -60,7 +60,7 @@
+ %{shared:-lc} \
+ %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+
+-#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
++#define LIBGCC_SPEC "-lgcc"
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+
+Index: b/libgcc/config/arm/t-linux
+===================================================================
+--- a/libgcc/config/arm/t-linux
++++ b/libgcc/config/arm/t-linux
+@@ -1,6 +1,11 @@
+ LIB1ASMSRC = arm/lib1funcs.S
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
+- _ctzsi2 _arm_addsubdf3 _arm_addsubsf3
++ _ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
++ _arm_addsubdf3 _arm_addsubsf3 \
++ _arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
++ _arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
++ _arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
++ _arm_fixsfsi _arm_fixunssfsi
+
+ # Just for these, we omit the frame pointer since it makes such a big
+ # difference.
diff --git a/patches/gcc/6.3.0/830-arm_unbreak_armv4t.patch b/patches/gcc/6.3.0/830-arm_unbreak_armv4t.patch
new file mode 100644
index 0000000..b730059
--- /dev/null
+++ b/patches/gcc/6.3.0/830-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/6.3.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch b/patches/gcc/6.3.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch
new file mode 100644
index 0000000..af9fb1d
--- /dev/null
+++ b/patches/gcc/6.3.0/831-ARM-PR-target-70473-Reduce-size-of-Cortex-A8-automat.patch
@@ -0,0 +1,69 @@
+From 07453188b18a2cbe815917dbb893b4ebfdd793b6 Mon Sep 17 00:00:00 2001
+From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 26 Aug 2016 10:23:20 +0000
+Subject: [PATCH] [ARM] PR target/70473: Reduce size of Cortex-A8 automaton
+
+ PR target/70473
+ * config/arm/cortex-a8-neon.md (cortex_a8_vfp_muld): Reduce
+ reservation duration to 15 cycles.
+ (cortex_a8_vfp_macs): Likewise.
+ (cortex_a8_vfp_macd): Likewise.
+ (cortex_a8_vfp_divs): Likewise.
+ (cortex_a8_vfp_divd): Likewise.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239772
+138bc75d-0d04-0410-961f-82ee72b054a4
+
+[Backport from gcc upstream commit 79f5d5e3cd5a668d5ecb2b6b0cce80ef5706ac53.]
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ gcc/config/arm/cortex-a8-neon.md | 14 +++++++++-----
+ 1 file changed, 9 insertions(+), 5 deletions(-)
+
+diff --git a/gcc/config/arm/cortex-a8-neon.md b/gcc/config/arm/cortex-a8-neon.md
+index 45f861f..b16c299 100644
+--- a/gcc/config/arm/cortex-a8-neon.md
++++ b/gcc/config/arm/cortex-a8-neon.md
+@@ -357,30 +357,34 @@
+ (eq_attr "type" "fmuls"))
+ "cortex_a8_vfp,cortex_a8_vfplite*11")
+
++;; Don't model a reservation for more than 15 cycles as this explodes the
++;; state space of the automaton for little gain. It is unlikely that the
++;; scheduler will find enough instructions to hide the full latency of the
++;; instructions.
+ (define_insn_reservation "cortex_a8_vfp_muld" 17
+ (and (eq_attr "tune" "cortexa8")
+ (eq_attr "type" "fmuld"))
+- "cortex_a8_vfp,cortex_a8_vfplite*16")
++ "cortex_a8_vfp,cortex_a8_vfplite*15")
+
+ (define_insn_reservation "cortex_a8_vfp_macs" 21
+ (and (eq_attr "tune" "cortexa8")
+ (eq_attr "type" "fmacs,ffmas"))
+- "cortex_a8_vfp,cortex_a8_vfplite*20")
++ "cortex_a8_vfp,cortex_a8_vfplite*15")
+
+ (define_insn_reservation "cortex_a8_vfp_macd" 26
+ (and (eq_attr "tune" "cortexa8")
+ (eq_attr "type" "fmacd,ffmad"))
+- "cortex_a8_vfp,cortex_a8_vfplite*25")
++ "cortex_a8_vfp,cortex_a8_vfplite*15")
+
+ (define_insn_reservation "cortex_a8_vfp_divs" 37
+ (and (eq_attr "tune" "cortexa8")
+ (eq_attr "type" "fdivs, fsqrts"))
+- "cortex_a8_vfp,cortex_a8_vfplite*36")
++ "cortex_a8_vfp,cortex_a8_vfplite*15")
+
+ (define_insn_reservation "cortex_a8_vfp_divd" 65
+ (and (eq_attr "tune" "cortexa8")
+ (eq_attr "type" "fdivd, fsqrtd"))
+- "cortex_a8_vfp,cortex_a8_vfplite*64")
++ "cortex_a8_vfp,cortex_a8_vfplite*15")
+
+ ;; Comparisons can actually take 7 cycles sometimes instead of four,
+ ;; but given all the other instructions lumped into type=ffarith that
+--
+2.7.4
+
diff --git a/patches/gcc/6.3.0/860-cilk-wchar.patch b/patches/gcc/6.3.0/860-cilk-wchar.patch
new file mode 100644
index 0000000..1d9916f
--- /dev/null
+++ b/patches/gcc/6.3.0/860-cilk-wchar.patch
@@ -0,0 +1,56 @@
+[PATCH] cilk: fix build without wchar
+
+When building against uClibc with wchar support disabled, WCHAR_MIN and
+WCHAR_MAX are not defined leading to compilation errors.
+
+Fix it by only including the wchar code if available.
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libcilkrts/include/cilk/reducer_min_max.h | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+Index: b/libcilkrts/include/cilk/reducer_min_max.h
+===================================================================
+--- a/libcilkrts/include/cilk/reducer_min_max.h
++++ b/libcilkrts/include/cilk/reducer_min_max.h
+@@ -3154,7 +3154,9 @@
+ CILK_C_REDUCER_MAX_INSTANCE(char, char, CHAR_MIN)
+ CILK_C_REDUCER_MAX_INSTANCE(unsigned char, uchar, 0)
+ CILK_C_REDUCER_MAX_INSTANCE(signed char, schar, SCHAR_MIN)
++#ifdef WCHAR_MIN
+ CILK_C_REDUCER_MAX_INSTANCE(wchar_t, wchar_t, WCHAR_MIN)
++#endif
+ CILK_C_REDUCER_MAX_INSTANCE(short, short, SHRT_MIN)
+ CILK_C_REDUCER_MAX_INSTANCE(unsigned short, ushort, 0)
+ CILK_C_REDUCER_MAX_INSTANCE(int, int, INT_MIN)
+@@ -3306,7 +3308,9 @@
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(char, char, CHAR_MIN)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(unsigned char, uchar, 0)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(signed char, schar, SCHAR_MIN)
++#ifdef WCHAR_MIN
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(wchar_t, wchar_t, WCHAR_MIN)
++#endif
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(short, short, SHRT_MIN)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(unsigned short, ushort, 0)
+ CILK_C_REDUCER_MAX_INDEX_INSTANCE(int, int, INT_MIN)
+@@ -3432,7 +3436,9 @@
+ CILK_C_REDUCER_MIN_INSTANCE(char, char, CHAR_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(unsigned char, uchar, CHAR_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(signed char, schar, SCHAR_MAX)
++#ifdef WCHAR_MAX
+ CILK_C_REDUCER_MIN_INSTANCE(wchar_t, wchar_t, WCHAR_MAX)
++#endif
+ CILK_C_REDUCER_MIN_INSTANCE(short, short, SHRT_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(unsigned short, ushort, USHRT_MAX)
+ CILK_C_REDUCER_MIN_INSTANCE(int, int, INT_MAX)
+@@ -3584,7 +3590,9 @@
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(char, char, CHAR_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(unsigned char, uchar, CHAR_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(signed char, schar, SCHAR_MAX)
++#ifdef WCHAR_MAX
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(wchar_t, wchar_t, WCHAR_MAX)
++#endif
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(short, short, SHRT_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(unsigned short, ushort, USHRT_MAX)
+ CILK_C_REDUCER_MIN_INDEX_INSTANCE(int, int, INT_MAX)
diff --git a/patches/gcc/6.3.0/870-xtensa-don-t-use-unwind-dw2-fde-dip-with-elf-targets.patch b/patches/gcc/6.3.0/870-xtensa-don-t-use-unwind-dw2-fde-dip-with-elf-targets.patch
new file mode 100644
index 0000000..6e0ce6e
--- /dev/null
+++ b/patches/gcc/6.3.0/870-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/6.3.0/871-xtensa-Fix-PR-target-78118.patch b/patches/gcc/6.3.0/871-xtensa-Fix-PR-target-78118.patch
new file mode 100644
index 0000000..c6ae103
--- /dev/null
+++ b/patches/gcc/6.3.0/871-xtensa-Fix-PR-target-78118.patch
@@ -0,0 +1,318 @@
+From bdda1689faf608ad7c83b5bd2e21a236b0047579 Mon Sep 17 00:00:00 2001
+From: Max Filippov <jcmvbkbc@gmail.com>
+Date: Wed, 26 Oct 2016 08:02:51 +0000
+Subject: [PATCH] xtensa: Fix PR target/78118
+
+It started failing after the following commit: 32e90dc6a0cda45 ("PR
+rtl-optimization/61047").
+
+The change that made xtensa backend go ICE looks completely unrelated,
+and indeed, the issue is caused by the side effect of
+compute_frame_size() function call hidden in the
+INITIAL_ELIMINATION_OFFSET macro. This call updates the value of the
+xtensa_current_frame_size static variable, used in "return" instruction
+predicate. Prior to the change the value of xtensa_current_frame_size was
+set to 0 after the end of epilogue generation, which enabled the "return"
+instruction for the CALL0 ABI, but after the change the additional
+INITIAL_ELIMINATION_OFFSET calls make xtensa_current_frame_size non-zero
+and "return" pattern unavailable.
+
+Get rid of the global xtensa_current_frame_size and
+xtensa_callee_save_size variables by moving them into the
+machine_function structure. Implement predicate for the "return" pattern
+as a function. Don't communicate completion of epilogue generation
+through zeroing of xtensa_current_frame_size, add explicit epilogue_done
+variable to the machine_function structure. Don't update stack frame
+layout after the completion of reload.
+
+2016-10-26 Max Filippov <jcmvbkbc@gmail.com>
+gcc/
+ * config/xtensa/xtensa-protos.h
+ (xtensa_use_return_instruction_p): New prototype.
+ * config/xtensa/xtensa.c (xtensa_current_frame_size,
+ xtensa_callee_save_size): Remove.
+ (struct machine_function): Add new fields: current_frame_size,
+ callee_save_size, frame_laid_out and epilogue_done.
+ (compute_frame_size, xtensa_expand_prologue,
+ xtensa_expand_epilogue): Replace xtensa_callee_save_size with
+ cfun->machine->callee_save_size and xtensa_current_frame_size
+ with cfun->machine->current_frame_size.
+ (compute_frame_size): Update cfun->machine->frame_laid_out and
+ don't update frame layout after reload completion.
+ (xtensa_expand_epilogue): Set cfun->machine->epilogue_done
+ instead of zeroing xtensa_current_frame_size.
+ (xtensa_use_return_instruction_p): New function.
+ * config/xtensa/xtensa.h (xtensa_current_frame_size): Remove
+ declaration.
+ (INITIAL_ELIMINATION_OFFSET): Use return value of
+ compute_frame_size instead of xtensa_current_frame_size value.
+ * config/xtensa/xtensa.md ("return" pattern): Use new predicate
+ function xtensa_use_return_instruction_p instead of inline code.
+
+Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
+---
+ gcc/config/xtensa/xtensa-protos.h | 1 +
+ gcc/config/xtensa/xtensa.c | 82 ++++++++++++++++++++++++---------------
+ gcc/config/xtensa/xtensa.h | 6 +--
+ gcc/config/xtensa/xtensa.md | 2 +-
+ 4 files changed, 55 insertions(+), 36 deletions(-)
+
+diff --git a/gcc/config/xtensa/xtensa-protos.h b/gcc/config/xtensa/xtensa-protos.h
+index f2ca526..873557f 100644
+--- a/gcc/config/xtensa/xtensa-protos.h
++++ b/gcc/config/xtensa/xtensa-protos.h
+@@ -68,6 +68,7 @@ extern rtx xtensa_return_addr (int, rtx);
+ extern void xtensa_setup_frame_addresses (void);
+ extern int xtensa_dbx_register_number (int);
+ extern long compute_frame_size (int);
++extern bool xtensa_use_return_instruction_p (void);
+ extern void xtensa_expand_prologue (void);
+ extern void xtensa_expand_epilogue (void);
+ extern void order_regs_for_local_alloc (void);
+diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
+index 64d089b..e49f784 100644
+--- a/gcc/config/xtensa/xtensa.c
++++ b/gcc/config/xtensa/xtensa.c
+@@ -78,11 +78,6 @@ enum internal_test
+ can support a given mode. */
+ char xtensa_hard_regno_mode_ok[(int) MAX_MACHINE_MODE][FIRST_PSEUDO_REGISTER];
+
+-/* Current frame size calculated by compute_frame_size. */
+-unsigned xtensa_current_frame_size;
+-/* Callee-save area size in the current frame calculated by compute_frame_size. */
+-int xtensa_callee_save_size;
+-
+ /* Largest block move to handle in-line. */
+ #define LARGEST_MOVE_RATIO 15
+
+@@ -94,6 +89,13 @@ struct GTY(()) machine_function
+ bool vararg_a7;
+ rtx vararg_a7_copy;
+ rtx_insn *set_frame_ptr_insn;
++ /* Current frame size calculated by compute_frame_size. */
++ unsigned current_frame_size;
++ /* Callee-save area size in the current frame calculated by
++ compute_frame_size. */
++ int callee_save_size;
++ bool frame_laid_out;
++ bool epilogue_done;
+ };
+
+ /* Vector, indexed by hard register number, which contains 1 for a
+@@ -2628,24 +2630,29 @@ compute_frame_size (int size)
+ {
+ int regno;
+
++ if (reload_completed && cfun->machine->frame_laid_out)
++ return cfun->machine->current_frame_size;
++
+ /* Add space for the incoming static chain value. */
+ if (cfun->static_chain_decl != NULL)
+ size += (1 * UNITS_PER_WORD);
+
+- xtensa_callee_save_size = 0;
++ cfun->machine->callee_save_size = 0;
+ for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno)
+ {
+ if (xtensa_call_save_reg(regno))
+- xtensa_callee_save_size += UNITS_PER_WORD;
++ cfun->machine->callee_save_size += UNITS_PER_WORD;
+ }
+
+- xtensa_current_frame_size =
++ cfun->machine->current_frame_size =
+ XTENSA_STACK_ALIGN (size
+- + xtensa_callee_save_size
++ + cfun->machine->callee_save_size
+ + crtl->outgoing_args_size
+ + (WINDOW_SIZE * UNITS_PER_WORD));
+- xtensa_callee_save_size = XTENSA_STACK_ALIGN (xtensa_callee_save_size);
+- return xtensa_current_frame_size;
++ cfun->machine->callee_save_size =
++ XTENSA_STACK_ALIGN (cfun->machine->callee_save_size);
++ cfun->machine->frame_laid_out = true;
++ return cfun->machine->current_frame_size;
+ }
+
+
+@@ -2696,6 +2703,7 @@ xtensa_expand_prologue (void)
+ {
+ int regno;
+ HOST_WIDE_INT offset = 0;
++ int callee_save_size = cfun->machine->callee_save_size;
+
+ /* -128 is a limit of single addi instruction. */
+ if (total_size > 0 && total_size <= 128)
+@@ -2709,7 +2717,7 @@ xtensa_expand_prologue (void)
+ add_reg_note (insn, REG_FRAME_RELATED_EXPR, note_rtx);
+ offset = total_size - UNITS_PER_WORD;
+ }
+- else if (xtensa_callee_save_size)
++ else if (callee_save_size)
+ {
+ /* 1020 is maximal s32i offset, if the frame is bigger than that
+ * we move sp to the end of callee-saved save area, save and then
+@@ -2717,13 +2725,13 @@ xtensa_expand_prologue (void)
+ if (total_size > 1024)
+ {
+ insn = emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx,
+- GEN_INT (-xtensa_callee_save_size)));
++ GEN_INT (-callee_save_size)));
+ RTX_FRAME_RELATED_P (insn) = 1;
+ note_rtx = gen_rtx_SET (stack_pointer_rtx,
+ plus_constant (Pmode, stack_pointer_rtx,
+- -xtensa_callee_save_size));
++ -callee_save_size));
+ add_reg_note (insn, REG_FRAME_RELATED_EXPR, note_rtx);
+- offset = xtensa_callee_save_size - UNITS_PER_WORD;
++ offset = callee_save_size - UNITS_PER_WORD;
+ }
+ else
+ {
+@@ -2759,13 +2767,13 @@ xtensa_expand_prologue (void)
+ {
+ rtx tmp_reg = gen_rtx_REG (Pmode, A9_REG);
+ emit_move_insn (tmp_reg, GEN_INT (total_size -
+- xtensa_callee_save_size));
++ callee_save_size));
+ insn = emit_insn (gen_subsi3 (stack_pointer_rtx,
+ stack_pointer_rtx, tmp_reg));
+ RTX_FRAME_RELATED_P (insn) = 1;
+ note_rtx = gen_rtx_SET (stack_pointer_rtx,
+ plus_constant (Pmode, stack_pointer_rtx,
+- xtensa_callee_save_size -
++ callee_save_size -
+ total_size));
+ add_reg_note (insn, REG_FRAME_RELATED_EXPR, note_rtx);
+ }
+@@ -2833,21 +2841,21 @@ xtensa_expand_epilogue (void)
+ int regno;
+ HOST_WIDE_INT offset;
+
+- if (xtensa_current_frame_size > (frame_pointer_needed ? 127 : 1024))
++ if (cfun->machine->current_frame_size > (frame_pointer_needed ? 127 : 1024))
+ {
+ rtx tmp_reg = gen_rtx_REG (Pmode, A9_REG);
+- emit_move_insn (tmp_reg, GEN_INT (xtensa_current_frame_size -
+- xtensa_callee_save_size));
++ emit_move_insn (tmp_reg, GEN_INT (cfun->machine->current_frame_size -
++ cfun->machine->callee_save_size));
+ emit_insn (gen_addsi3 (stack_pointer_rtx, frame_pointer_needed ?
+ hard_frame_pointer_rtx : stack_pointer_rtx,
+ tmp_reg));
+- offset = xtensa_callee_save_size - UNITS_PER_WORD;
++ offset = cfun->machine->callee_save_size - UNITS_PER_WORD;
+ }
+ else
+ {
+ if (frame_pointer_needed)
+ emit_move_insn (stack_pointer_rtx, hard_frame_pointer_rtx);
+- offset = xtensa_current_frame_size - UNITS_PER_WORD;
++ offset = cfun->machine->current_frame_size - UNITS_PER_WORD;
+ }
+
+ /* Prevent reordering of saved a0 update and loading it back from
+@@ -2867,16 +2875,16 @@ xtensa_expand_epilogue (void)
+ }
+ }
+
+- if (xtensa_current_frame_size > 0)
++ if (cfun->machine->current_frame_size > 0)
+ {
+ if (frame_pointer_needed || /* always reachable with addi */
+- xtensa_current_frame_size > 1024 ||
+- xtensa_current_frame_size <= 127)
++ cfun->machine->current_frame_size > 1024 ||
++ cfun->machine->current_frame_size <= 127)
+ {
+- if (xtensa_current_frame_size <= 127)
+- offset = xtensa_current_frame_size;
++ if (cfun->machine->current_frame_size <= 127)
++ offset = cfun->machine->current_frame_size;
+ else
+- offset = xtensa_callee_save_size;
++ offset = cfun->machine->callee_save_size;
+
+ emit_insn (gen_addsi3 (stack_pointer_rtx,
+ stack_pointer_rtx,
+@@ -2885,7 +2893,8 @@ xtensa_expand_epilogue (void)
+ else
+ {
+ rtx tmp_reg = gen_rtx_REG (Pmode, A9_REG);
+- emit_move_insn (tmp_reg, GEN_INT (xtensa_current_frame_size));
++ emit_move_insn (tmp_reg,
++ GEN_INT (cfun->machine->current_frame_size));
+ emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx,
+ tmp_reg));
+ }
+@@ -2896,11 +2905,22 @@ xtensa_expand_epilogue (void)
+ stack_pointer_rtx,
+ EH_RETURN_STACKADJ_RTX));
+ }
+- xtensa_current_frame_size = 0;
+- xtensa_callee_save_size = 0;
++ cfun->machine->epilogue_done = true;
+ emit_jump_insn (gen_return ());
+ }
+
++bool
++xtensa_use_return_instruction_p (void)
++{
++ if (!reload_completed)
++ return false;
++ if (TARGET_WINDOWED_ABI)
++ return true;
++ if (compute_frame_size (get_frame_size ()) == 0)
++ return true;
++ return cfun->machine->epilogue_done;
++}
++
+ void
+ xtensa_set_return_address (rtx address, rtx scratch)
+ {
+diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
+index 82e9900..58eb1b2 100644
+--- a/gcc/config/xtensa/xtensa.h
++++ b/gcc/config/xtensa/xtensa.h
+@@ -23,8 +23,6 @@ along with GCC; see the file COPYING3. If not see
+
+ /* External variables defined in xtensa.c. */
+
+-extern unsigned xtensa_current_frame_size;
+-
+ /* Macros used in the machine description to select various Xtensa
+ configuration options. */
+ #ifndef XCHAL_HAVE_MUL32_HIGH
+@@ -477,14 +475,14 @@ enum reg_class
+ /* Specify the initial difference between the specified pair of registers. */
+ #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
+ do { \
+- compute_frame_size (get_frame_size ()); \
++ long frame_size = compute_frame_size (get_frame_size ()); \
+ switch (FROM) \
+ { \
+ case FRAME_POINTER_REGNUM: \
+ (OFFSET) = 0; \
+ break; \
+ case ARG_POINTER_REGNUM: \
+- (OFFSET) = xtensa_current_frame_size; \
++ (OFFSET) = frame_size; \
+ break; \
+ default: \
+ gcc_unreachable (); \
+diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md
+index db54a12..fcdb6c8 100644
+--- a/gcc/config/xtensa/xtensa.md
++++ b/gcc/config/xtensa/xtensa.md
+@@ -1663,7 +1663,7 @@
+ (define_insn "return"
+ [(return)
+ (use (reg:SI A0_REG))]
+- "(TARGET_WINDOWED_ABI || !xtensa_current_frame_size) && reload_completed"
++ "xtensa_use_return_instruction_p ()"
+ {
+ return TARGET_WINDOWED_ABI ?
+ (TARGET_DENSITY ? "retw.n" : "retw") :
+--
+2.1.4
+
diff --git a/patches/gcc/6.3.0/872-xtensa-Fix-PR-target-78603.patch b/patches/gcc/6.3.0/872-xtensa-Fix-PR-target-78603.patch
new file mode 100644
index 0000000..669097c
--- /dev/null
+++ b/patches/gcc/6.3.0/872-xtensa-Fix-PR-target-78603.patch
@@ -0,0 +1,35 @@
+From a568f3a84ff41ca272301a5fcf31071143e97e0f 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 e49f784..70f698a 100644
+--- a/gcc/config/xtensa/xtensa.c
++++ b/gcc/config/xtensa/xtensa.c
+@@ -4158,7 +4158,10 @@ 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/6.3.0/890-fix-m68k-compile.patch b/patches/gcc/6.3.0/890-fix-m68k-compile.patch
new file mode 100644
index 0000000..6e63de0
--- /dev/null
+++ b/patches/gcc/6.3.0/890-fix-m68k-compile.patch
@@ -0,0 +1,15 @@
+remove unused header, which breaks the toolchain building
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config/m68k/linux-atomic.c gcc-5.3.0/libgcc/config/m68k/linux-atomic.c
+--- gcc-5.3.0.orig/libgcc/config/m68k/linux-atomic.c 2015-01-05 13:33:28.000000000 +0100
++++ gcc-5.3.0/libgcc/config/m68k/linux-atomic.c 2016-03-19 09:25:07.000000000 +0100
+@@ -33,7 +33,6 @@
+ using the kernel helper defined below. There is no support for
+ 64-bit operations yet. */
+
+-#include <asm/unistd.h>
+ #include <stdbool.h>
+
+ #ifndef __NR_atomic_cmpxchg_32
diff --git a/patches/gcc/6.3.0/891-fix-m68k-uclinux.patch b/patches/gcc/6.3.0/891-fix-m68k-uclinux.patch
new file mode 100644
index 0000000..4e186bd
--- /dev/null
+++ b/patches/gcc/6.3.0/891-fix-m68k-uclinux.patch
@@ -0,0 +1,18 @@
+avoids internal compiler error while compiling linux-atomic.c
+See here:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53833
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config.host gcc-5.3.0/libgcc/config.host
+--- gcc-5.3.0.orig/libgcc/config.host 2015-10-01 14:01:18.000000000 +0200
++++ gcc-5.3.0/libgcc/config.host 2016-04-26 21:30:25.353691745 +0200
+@@ -794,7 +794,7 @@
+ m68k*-*-openbsd*)
+ ;;
+ m68k-*-uclinux*) # Motorola m68k/ColdFire running uClinux with uClibc
+- tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
++ tmake_file="$tmake_file m68k/t-floatlib"
+ md_unwind_header=m68k/linux-unwind.h
+ ;;
+ m68k-*-linux*) # Motorola m68k's running GNU/Linux
diff --git a/patches/gcc/6.3.0/892-libgcc-mkmap-symver-support-skip_underscore.patch b/patches/gcc/6.3.0/892-libgcc-mkmap-symver-support-skip_underscore.patch
new file mode 100644
index 0000000..73ee6c5
--- /dev/null
+++ b/patches/gcc/6.3.0/892-libgcc-mkmap-symver-support-skip_underscore.patch
@@ -0,0 +1,60 @@
+From ae9c3e354440c4a0f105a9eabfb2f77be085ebc1 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Thu, 18 Aug 2016 17:59:16 +0200
+Subject: [PATCH] libgcc/mkmap-symver: support skip_underscore
+
+Some platforms, such as Blackfin, have a special prefix for assembly
+symbols as opposed to C symbols. For this reason, a function named
+"foo()" in C will in fact be visible as a symbol called "_foo" in the
+ELF binary.
+
+The current linker version script logic in libgcc doesn't take into
+account this situation properly. The Blackfin specific
+libgcc/config/bfin/libgcc-glibc.ver has an additional "_" in front of
+every symbol so that it matches the output of "nm" (which gets parsed to
+produce the final linker version script). But due to this additional
+"_", ld no longer matches with the symbols since "ld" does the matching
+with the original symbol name, not the one prefixed with "_".
+
+Due to this, none of the symbols in libgcc/config/bfin/libgcc-glibc.ver
+are actually matched with symbols in libgcc. This causes all libgcc
+symbols to be left as "LOCAL", which causes lots of "undefined
+reference" whenever some C or C++ code that calls a function of libgcc
+is compiled.
+
+To address this, this commit introduces a "skip_underscore" variable to
+the mkmap-symver script. It tells mkmap-symver to ignore the leading
+underscore from the "nm" output.
+
+Note that this new argument is different from the existing
+"leading_underscore" argument, which *adds* an additional underscore to
+the generated linker version script.
+
+Having this functionality paves the way to using the generic linker
+version information for Blackfin, instead of using a custom one.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ libgcc/mkmap-symver.awk | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/libgcc/mkmap-symver.awk b/libgcc/mkmap-symver.awk
+index 266832a..30bb179 100644
+--- a/libgcc/mkmap-symver.awk
++++ b/libgcc/mkmap-symver.awk
+@@ -47,7 +47,11 @@ state == "nm" && ($1 == "U" || $2 == "U") {
+
+ state == "nm" && NF == 3 {
+ split ($3, s, "@")
+- def[s[1]] = 1;
++ if (skip_underscore)
++ symname = substr(s[1], 2);
++ else
++ symname = s[1];
++ def[symname] = 1;
+ sawsymbol = 1;
+ next;
+ }
+--
+2.7.4
+
diff --git a/patches/gcc/6.3.0/893-libgcc-config-bfin-use-the-generic-linker-version-in.patch b/patches/gcc/6.3.0/893-libgcc-config-bfin-use-the-generic-linker-version-in.patch
new file mode 100644
index 0000000..454295d
--- /dev/null
+++ b/patches/gcc/6.3.0/893-libgcc-config-bfin-use-the-generic-linker-version-in.patch
@@ -0,0 +1,1944 @@
+From 56d606931716de30a89a40dc69a9282c1b4e2880 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Thu, 18 Aug 2016 18:04:06 +0200
+Subject: [PATCH] libgcc/config/bfin: use the generic linker version
+ information
+
+This commit makes the Blackfin platform use the generic linker version
+information, rather than a completely duplicated file, specific for the
+Blackfin architecture.
+
+This is made possible using the newly introduced skip_underscore
+variable of the mkmap-symver script.
+
+This also allows to get a correct linker version file, with symbol names
+matching the ones found in libgcc. Thanks to this, the necessary symbols
+are marked "GLOBAL" instead of "LOCAL", which makes them visible at link
+time, and solves a large number of "undefined reference"
+issues. Indeed, the Blackfin specific linker version script had an extra
+underscore in front of all symbols, which meant none of them matched the
+symbols in libgcc, and therefore all libgcc symbols were marked as
+"LOCAL", making them invisible for linking.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ libgcc/config/bfin/libgcc-glibc.ver | 1894 +----------------------------------
+ libgcc/config/bfin/t-linux | 3 +-
+ 2 files changed, 4 insertions(+), 1893 deletions(-)
+
+diff --git a/libgcc/config/bfin/libgcc-glibc.ver b/libgcc/config/bfin/libgcc-glibc.ver
+index b1bd2df..2af3df7 100644
+--- a/libgcc/config/bfin/libgcc-glibc.ver
++++ b/libgcc/config/bfin/libgcc-glibc.ver
+@@ -16,1898 +16,8 @@
+ # along with GCC; see the file COPYING3. If not see
+ # <http://www.gnu.org/licenses/>.
+
+-GCC_3.0 {
+- # libgcc1 integer symbols
+- ___absvsi2
+- ___addvsi3
+- ___ashlsi3
+- ___ashrsi3
+- ___divsi3
+- ___lshrsi3
+- ___modsi3
+- ___mulsi3
+- ___mulvsi3
+- ___negvsi2
+- ___subvsi3
+- ___udivsi3
+- ___umodsi3
+-
+- # libgcc1 floating point symbols
+- ___addsf3
+- ___adddf3
+- ___addxf3
+- ___addtf3
+- ___divsf3
+- ___divdf3
+- ___divxf3
+- ___divtf3
+- ___eqsf2
+- ___eqdf2
+- ___eqxf2
+- ___eqtf2
+- ___extenddfxf2
+- ___extenddftf2
+- ___extendsfdf2
+- ___extendsfxf2
+- ___extendsftf2
+- ___fixsfsi
+- ___fixdfsi
+- ___fixxfsi
+- ___fixtfsi
+- ___floatsisf
+- ___floatsidf
+- ___floatsixf
+- ___floatsitf
+- ___gesf2
+- ___gedf2
+- ___gexf2
+- ___getf2
+- ___gtsf2
+- ___gtdf2
+- ___gtxf2
+- ___gttf2
+- ___lesf2
+- ___ledf2
+- ___lexf2
+- ___letf2
+- ___ltsf2
+- ___ltdf2
+- ___ltxf2
+- ___lttf2
+- ___mulsf3
+- ___muldf3
+- ___mulxf3
+- ___multf3
+- ___negsf2
+- ___negdf2
+- ___negxf2
+- ___negtf2
+- ___nesf2
+- ___nedf2
+- ___nexf2
+- ___netf2
+- ___subsf3
+- ___subdf3
+- ___subxf3
+- ___subtf3
+- ___truncdfsf2
+- ___truncxfsf2
+- ___trunctfsf2
+- ___truncxfdf2
+- ___trunctfdf2
+-
+- # libgcc2 DImode arithmetic (for 32-bit targets).
+- ___absvdi2
+- ___addvdi3
+- ___ashldi3
+- ___ashrdi3
+- ___cmpdi2
+- ___divdi3
+- ___ffsdi2
+- ___fixdfdi
+- ___fixsfdi
+- ___fixtfdi
+- ___fixxfdi
+- ___fixunsdfdi
+- ___fixunsdfsi
+- ___fixunssfsi
+- ___fixunssfdi
+- ___fixunstfdi
+- ___fixunstfsi
+- ___fixunsxfdi
+- ___fixunsxfsi
+- ___floatdidf
+- ___floatdisf
+- ___floatdixf
+- ___floatditf
+- ___lshrdi3
+- ___moddi3
+- ___muldi3
+- ___mulvdi3
+- ___negdi2
+- ___negvdi2
+- ___subvdi3
+- ___ucmpdi2
+- ___udivdi3
+- ___udivmoddi4
+- ___umoddi3
+-
+- # libgcc2 TImode arithmetic (for 64-bit targets).
+- ___ashlti3
+- ___ashrti3
+- ___cmpti2
+- ___divti3
+- ___ffsti2
+- ___fixdfti
+- ___fixsfti
+- ___fixtfti
+- ___fixxfti
+- ___lshrti3
+- ___modti3
+- ___multi3
+- ___negti2
+- ___ucmpti2
+- ___udivmodti4
+- ___udivti3
+- ___umodti3
+- ___fixunsdfti
+- ___fixunssfti
+- ___fixunstfti
+- ___fixunsxfti
+- ___floattidf
+- ___floattisf
+- ___floattixf
+- ___floattitf
+-
+- # Used to deal with trampoline initialization on some platforms
+- ___clear_cache
+-
+- # EH symbols
+- __Unwind_DeleteException
+- __Unwind_Find_FDE
+- __Unwind_ForcedUnwind
+- __Unwind_GetGR
+- __Unwind_GetIP
+- __Unwind_GetLanguageSpecificData
+- __Unwind_GetRegionStart
+- __Unwind_GetTextRelBase
+- __Unwind_GetDataRelBase
+- __Unwind_RaiseException
+- __Unwind_Resume
+- __Unwind_SetGR
+- __Unwind_SetIP
+- ___deregister_frame
+- ___deregister_frame_info
+- ___deregister_frame_info_bases
+- ___register_frame
+- ___register_frame_info
+- ___register_frame_info_bases
+- ___register_frame_info_table
+- ___register_frame_info_table_bases
+- ___register_frame_table
+-
+- # SjLj EH symbols
+- __Unwind_SjLj_Register
+- __Unwind_SjLj_Unregister
+- __Unwind_SjLj_RaiseException
+- __Unwind_SjLj_ForcedUnwind
+- __Unwind_SjLj_Resume
+-}
+-
+-%inherit GCC_3.3 GCC_3.0
+-GCC_3.3 {
+- __Unwind_FindEnclosingFunction
+- __Unwind_GetCFA
+- __Unwind_Backtrace
+- __Unwind_Resume_or_Rethrow
+- __Unwind_SjLj_Resume_or_Rethrow
+-}
+-
+-%inherit GCC_3.3.1 GCC_3.3
+-GCC_3.3.1 {
+- ___gcc_personality_sj0
+- ___gcc_personality_v0
+-}
+-
+-%inherit GCC_3.3.2 GCC_3.3.1
+-GCC_3.3.2 {
+-}
+-%inherit GCC_3.3.4 GCC_3.3.2
+-GCC_3.3.4 {
+- ___unorddf2
+- ___unordsf2
+-}
+-
+-%inherit GCC_3.4 GCC_3.3.4
+-GCC_3.4 {
+- # bit scanning and counting built-ins
+- ___clzsi2
+- ___clzdi2
+- ___clzti2
+- ___ctzsi2
+- ___ctzdi2
+- ___ctzti2
+- ___popcountsi2
+- ___popcountdi2
+- ___popcountti2
+- ___paritysi2
+- ___paritydi2
+- ___parityti2
+-}
+-
+-%inherit GCC_3.4.2 GCC_3.4
+-GCC_3.4.2 {
+- # Used to deal with trampoline initialization on some platforms
+- ___enable_execute_stack
+- ___trampoline_setup
+-}
+-
+-%inherit GCC_3.4.4 GCC_3.4.2
+-GCC_3.4.4 {
+- # libgcc2 TImode arithmetic (for 64-bit targets).
+- ___absvti2
+- ___addvti3
+- ___mulvti3
+- ___negvti2
+- ___subvti3
+-}
+-
+-%inherit GCC_4.0.0 GCC_3.4.4
+-GCC_4.0.0 {
+- # libgcc2 __builtin_powi helpers.
+- ___powisf2
+- ___powidf2
+- ___powixf2
+- ___powitf2
+-
+- # c99 compliant complex arithmetic
+- ___divsc3
+- ___divdc3
+- ___divxc3
+- ___divtc3
+- ___mulsc3
+- ___muldc3
+- ___mulxc3
+- ___multc3
+-}
+-
+ %inherit GCC_4.1.0 GCC_4.0.0
+ GCC_4.1.0 {
+- ___smulsi3_highpart
+- ___umulsi3_highpart
+-}
+-
+-%inherit GCC_4.2.0 GCC_4.1.0
+-GCC_4.2.0 {
+- # unsigned-to-floating conversions
+- ___floatunsisf
+- ___floatunsidf
+- ___floatunsixf
+- ___floatunsitf
+- ___floatundidf
+- ___floatundisf
+- ___floatundixf
+- ___floatunditf
+- ___floatuntidf
+- ___floatuntisf
+- ___floatuntixf
+- ___floatuntitf
+- __Unwind_GetIPInfo
+-}
+-
+-%inherit GCC_4.3.0 GCC_4.2.0
+-GCC_4.3.0 {
+- # byte swapping routines
+- ___bswapsi2
+- ___bswapdi2
+- ___emutls_get_address
+- ___emutls_register_common
+- ___ffssi2
+- ___extendxftf2
+- ___trunctfxf2
+-
+- # fixed-point routines
+- ___addqq3
+- ___addhq3
+- ___addsq3
+- ___adddq3
+- ___addtq3
+- ___adduqq3
+- ___adduhq3
+- ___addusq3
+- ___addudq3
+- ___addutq3
+- ___addha3
+- ___addsa3
+- ___addda3
+- ___addta3
+- ___adduha3
+- ___addusa3
+- ___adduda3
+- ___adduta3
+- ___ssaddqq3
+- ___ssaddhq3
+- ___ssaddsq3
+- ___ssadddq3
+- ___ssaddtq3
+- ___ssaddha3
+- ___ssaddsa3
+- ___ssaddda3
+- ___ssaddta3
+- ___usadduqq3
+- ___usadduhq3
+- ___usaddusq3
+- ___usaddudq3
+- ___usaddutq3
+- ___usadduha3
+- ___usaddusa3
+- ___usadduda3
+- ___usadduta3
+- ___subqq3
+- ___subhq3
+- ___subsq3
+- ___subdq3
+- ___subtq3
+- ___subuqq3
+- ___subuhq3
+- ___subusq3
+- ___subudq3
+- ___subutq3
+- ___subha3
+- ___subsa3
+- ___subda3
+- ___subta3
+- ___subuha3
+- ___subusa3
+- ___subuda3
+- ___subuta3
+- ___sssubqq3
+- ___sssubhq3
+- ___sssubsq3
+- ___sssubdq3
+- ___sssubtq3
+- ___sssubha3
+- ___sssubsa3
+- ___sssubda3
+- ___sssubta3
+- ___ussubuqq3
+- ___ussubuhq3
+- ___ussubusq3
+- ___ussubudq3
+- ___ussubutq3
+- ___ussubuha3
+- ___ussubusa3
+- ___ussubuda3
+- ___ussubuta3
+- ___mulqq3
+- ___mulhq3
+- ___mulsq3
+- ___muldq3
+- ___multq3
+- ___muluqq3
+- ___muluhq3
+- ___mulusq3
+- ___muludq3
+- ___mulutq3
+- ___mulha3
+- ___mulsa3
+- ___mulda3
+- ___multa3
+- ___muluha3
+- ___mulusa3
+- ___muluda3
+- ___muluta3
+- ___ssmulqq3
+- ___ssmulhq3
+- ___ssmulsq3
+- ___ssmuldq3
+- ___ssmultq3
+- ___ssmulha3
+- ___ssmulsa3
+- ___ssmulda3
+- ___ssmulta3
+- ___usmuluqq3
+- ___usmuluhq3
+- ___usmulusq3
+- ___usmuludq3
+- ___usmulutq3
+- ___usmuluha3
+- ___usmulusa3
+- ___usmuluda3
+- ___usmuluta3
+- ___divqq3
+- ___divhq3
+- ___divsq3
+- ___divdq3
+- ___divtq3
+- ___divha3
+- ___divsa3
+- ___divda3
+- ___divta3
+- ___udivuqq3
+- ___udivuhq3
+- ___udivusq3
+- ___udivudq3
+- ___udivutq3
+- ___udivuha3
+- ___udivusa3
+- ___udivuda3
+- ___udivuta3
+- ___ssdivqq3
+- ___ssdivhq3
+- ___ssdivsq3
+- ___ssdivdq3
+- ___ssdivtq3
+- ___ssdivha3
+- ___ssdivsa3
+- ___ssdivda3
+- ___ssdivta3
+- ___usdivuqq3
+- ___usdivuhq3
+- ___usdivusq3
+- ___usdivudq3
+- ___usdivutq3
+- ___usdivuha3
+- ___usdivusa3
+- ___usdivuda3
+- ___usdivuta3
+- ___negqq2
+- ___neghq2
+- ___negsq2
+- ___negdq2
+- ___negtq2
+- ___neguqq2
+- ___neguhq2
+- ___negusq2
+- ___negudq2
+- ___negutq2
+- ___negha2
+- ___negsa2
+- ___negda2
+- ___negta2
+- ___neguha2
+- ___negusa2
+- ___neguda2
+- ___neguta2
+- ___ssnegqq2
+- ___ssneghq2
+- ___ssnegsq2
+- ___ssnegdq2
+- ___ssnegtq2
+- ___ssnegha2
+- ___ssnegsa2
+- ___ssnegda2
+- ___ssnegta2
+- ___usneguqq2
+- ___usneguhq2
+- ___usnegusq2
+- ___usnegudq2
+- ___usnegutq2
+- ___usneguha2
+- ___usnegusa2
+- ___usneguda2
+- ___usneguta2
+- ___ashlqq3
+- ___ashlhq3
+- ___ashlsq3
+- ___ashldq3
+- ___ashltq3
+- ___ashluqq3
+- ___ashluhq3
+- ___ashlusq3
+- ___ashludq3
+- ___ashlutq3
+- ___ashlha3
+- ___ashlsa3
+- ___ashlda3
+- ___ashlta3
+- ___ashluha3
+- ___ashlusa3
+- ___ashluda3
+- ___ashluta3
+- ___ashrqq3
+- ___ashrhq3
+- ___ashrsq3
+- ___ashrdq3
+- ___ashrtq3
+- ___ashrha3
+- ___ashrsa3
+- ___ashrda3
+- ___ashrta3
+- ___lshruqq3
+- ___lshruhq3
+- ___lshrusq3
+- ___lshrudq3
+- ___lshrutq3
+- ___lshruha3
+- ___lshrusa3
+- ___lshruda3
+- ___lshruta3
+- ___ssashlqq3
+- ___ssashlhq3
+- ___ssashlsq3
+- ___ssashldq3
+- ___ssashltq3
+- ___ssashlha3
+- ___ssashlsa3
+- ___ssashlda3
+- ___ssashlta3
+- ___usashluqq3
+- ___usashluhq3
+- ___usashlusq3
+- ___usashludq3
+- ___usashlutq3
+- ___usashluha3
+- ___usashlusa3
+- ___usashluda3
+- ___usashluta3
+- ___cmpqq2
+- ___cmphq2
+- ___cmpsq2
+- ___cmpdq2
+- ___cmptq2
+- ___cmpuqq2
+- ___cmpuhq2
+- ___cmpusq2
+- ___cmpudq2
+- ___cmputq2
+- ___cmpha2
+- ___cmpsa2
+- ___cmpda2
+- ___cmpta2
+- ___cmpuha2
+- ___cmpusa2
+- ___cmpuda2
+- ___cmputa2
+- ___fractqqhq2
+- ___fractqqsq2
+- ___fractqqdq2
+- ___fractqqtq2
+- ___fractqqha
+- ___fractqqsa
+- ___fractqqda
+- ___fractqqta
+- ___fractqquqq
+- ___fractqquhq
+- ___fractqqusq
+- ___fractqqudq
+- ___fractqqutq
+- ___fractqquha
+- ___fractqqusa
+- ___fractqquda
+- ___fractqquta
+- ___fractqqqi
+- ___fractqqhi
+- ___fractqqsi
+- ___fractqqdi
+- ___fractqqti
+- ___fractqqsf
+- ___fractqqdf
+- ___fracthqqq2
+- ___fracthqsq2
+- ___fracthqdq2
+- ___fracthqtq2
+- ___fracthqha
+- ___fracthqsa
+- ___fracthqda
+- ___fracthqta
+- ___fracthquqq
+- ___fracthquhq
+- ___fracthqusq
+- ___fracthqudq
+- ___fracthqutq
+- ___fracthquha
+- ___fracthqusa
+- ___fracthquda
+- ___fracthquta
+- ___fracthqqi
+- ___fracthqhi
+- ___fracthqsi
+- ___fracthqdi
+- ___fracthqti
+- ___fracthqsf
+- ___fracthqdf
+- ___fractsqqq2
+- ___fractsqhq2
+- ___fractsqdq2
+- ___fractsqtq2
+- ___fractsqha
+- ___fractsqsa
+- ___fractsqda
+- ___fractsqta
+- ___fractsquqq
+- ___fractsquhq
+- ___fractsqusq
+- ___fractsqudq
+- ___fractsqutq
+- ___fractsquha
+- ___fractsqusa
+- ___fractsquda
+- ___fractsquta
+- ___fractsqqi
+- ___fractsqhi
+- ___fractsqsi
+- ___fractsqdi
+- ___fractsqti
+- ___fractsqsf
+- ___fractsqdf
+- ___fractdqqq2
+- ___fractdqhq2
+- ___fractdqsq2
+- ___fractdqtq2
+- ___fractdqha
+- ___fractdqsa
+- ___fractdqda
+- ___fractdqta
+- ___fractdquqq
+- ___fractdquhq
+- ___fractdqusq
+- ___fractdqudq
+- ___fractdqutq
+- ___fractdquha
+- ___fractdqusa
+- ___fractdquda
+- ___fractdquta
+- ___fractdqqi
+- ___fractdqhi
+- ___fractdqsi
+- ___fractdqdi
+- ___fractdqti
+- ___fractdqsf
+- ___fractdqdf
+- ___fracttqqq2
+- ___fracttqhq2
+- ___fracttqsq2
+- ___fracttqdq2
+- ___fracttqha
+- ___fracttqsa
+- ___fracttqda
+- ___fracttqta
+- ___fracttquqq
+- ___fracttquhq
+- ___fracttqusq
+- ___fracttqudq
+- ___fracttqutq
+- ___fracttquha
+- ___fracttqusa
+- ___fracttquda
+- ___fracttquta
+- ___fracttqqi
+- ___fracttqhi
+- ___fracttqsi
+- ___fracttqdi
+- ___fracttqti
+- ___fracttqsf
+- ___fracttqdf
+- ___fracthaqq
+- ___fracthahq
+- ___fracthasq
+- ___fracthadq
+- ___fracthatq
+- ___fracthasa2
+- ___fracthada2
+- ___fracthata2
+- ___fracthauqq
+- ___fracthauhq
+- ___fracthausq
+- ___fracthaudq
+- ___fracthautq
+- ___fracthauha
+- ___fracthausa
+- ___fracthauda
+- ___fracthauta
+- ___fracthaqi
+- ___fracthahi
+- ___fracthasi
+- ___fracthadi
+- ___fracthati
+- ___fracthasf
+- ___fracthadf
+- ___fractsaqq
+- ___fractsahq
+- ___fractsasq
+- ___fractsadq
+- ___fractsatq
+- ___fractsaha2
+- ___fractsada2
+- ___fractsata2
+- ___fractsauqq
+- ___fractsauhq
+- ___fractsausq
+- ___fractsaudq
+- ___fractsautq
+- ___fractsauha
+- ___fractsausa
+- ___fractsauda
+- ___fractsauta
+- ___fractsaqi
+- ___fractsahi
+- ___fractsasi
+- ___fractsadi
+- ___fractsati
+- ___fractsasf
+- ___fractsadf
+- ___fractdaqq
+- ___fractdahq
+- ___fractdasq
+- ___fractdadq
+- ___fractdatq
+- ___fractdaha2
+- ___fractdasa2
+- ___fractdata2
+- ___fractdauqq
+- ___fractdauhq
+- ___fractdausq
+- ___fractdaudq
+- ___fractdautq
+- ___fractdauha
+- ___fractdausa
+- ___fractdauda
+- ___fractdauta
+- ___fractdaqi
+- ___fractdahi
+- ___fractdasi
+- ___fractdadi
+- ___fractdati
+- ___fractdasf
+- ___fractdadf
+- ___fracttaqq
+- ___fracttahq
+- ___fracttasq
+- ___fracttadq
+- ___fracttatq
+- ___fracttaha2
+- ___fracttasa2
+- ___fracttada2
+- ___fracttauqq
+- ___fracttauhq
+- ___fracttausq
+- ___fracttaudq
+- ___fracttautq
+- ___fracttauha
+- ___fracttausa
+- ___fracttauda
+- ___fracttauta
+- ___fracttaqi
+- ___fracttahi
+- ___fracttasi
+- ___fracttadi
+- ___fracttati
+- ___fracttasf
+- ___fracttadf
+- ___fractuqqqq
+- ___fractuqqhq
+- ___fractuqqsq
+- ___fractuqqdq
+- ___fractuqqtq
+- ___fractuqqha
+- ___fractuqqsa
+- ___fractuqqda
+- ___fractuqqta
+- ___fractuqquhq2
+- ___fractuqqusq2
+- ___fractuqqudq2
+- ___fractuqqutq2
+- ___fractuqquha
+- ___fractuqqusa
+- ___fractuqquda
+- ___fractuqquta
+- ___fractuqqqi
+- ___fractuqqhi
+- ___fractuqqsi
+- ___fractuqqdi
+- ___fractuqqti
+- ___fractuqqsf
+- ___fractuqqdf
+- ___fractuhqqq
+- ___fractuhqhq
+- ___fractuhqsq
+- ___fractuhqdq
+- ___fractuhqtq
+- ___fractuhqha
+- ___fractuhqsa
+- ___fractuhqda
+- ___fractuhqta
+- ___fractuhquqq2
+- ___fractuhqusq2
+- ___fractuhqudq2
+- ___fractuhqutq2
+- ___fractuhquha
+- ___fractuhqusa
+- ___fractuhquda
+- ___fractuhquta
+- ___fractuhqqi
+- ___fractuhqhi
+- ___fractuhqsi
+- ___fractuhqdi
+- ___fractuhqti
+- ___fractuhqsf
+- ___fractuhqdf
+- ___fractusqqq
+- ___fractusqhq
+- ___fractusqsq
+- ___fractusqdq
+- ___fractusqtq
+- ___fractusqha
+- ___fractusqsa
+- ___fractusqda
+- ___fractusqta
+- ___fractusquqq2
+- ___fractusquhq2
+- ___fractusqudq2
+- ___fractusqutq2
+- ___fractusquha
+- ___fractusqusa
+- ___fractusquda
+- ___fractusquta
+- ___fractusqqi
+- ___fractusqhi
+- ___fractusqsi
+- ___fractusqdi
+- ___fractusqti
+- ___fractusqsf
+- ___fractusqdf
+- ___fractudqqq
+- ___fractudqhq
+- ___fractudqsq
+- ___fractudqdq
+- ___fractudqtq
+- ___fractudqha
+- ___fractudqsa
+- ___fractudqda
+- ___fractudqta
+- ___fractudquqq2
+- ___fractudquhq2
+- ___fractudqusq2
+- ___fractudqutq2
+- ___fractudquha
+- ___fractudqusa
+- ___fractudquda
+- ___fractudquta
+- ___fractudqqi
+- ___fractudqhi
+- ___fractudqsi
+- ___fractudqdi
+- ___fractudqti
+- ___fractudqsf
+- ___fractudqdf
+- ___fractutqqq
+- ___fractutqhq
+- ___fractutqsq
+- ___fractutqdq
+- ___fractutqtq
+- ___fractutqha
+- ___fractutqsa
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+- ___satfractunsqita
+- ___satfractunsqiuqq
+- ___satfractunsqiuhq
+- ___satfractunsqiusq
+- ___satfractunsqiudq
+- ___satfractunsqiutq
+- ___satfractunsqiuha
+- ___satfractunsqiusa
+- ___satfractunsqiuda
+- ___satfractunsqiuta
+- ___satfractunshiqq
+- ___satfractunshihq
+- ___satfractunshisq
+- ___satfractunshidq
+- ___satfractunshitq
+- ___satfractunshiha
+- ___satfractunshisa
+- ___satfractunshida
+- ___satfractunshita
+- ___satfractunshiuqq
+- ___satfractunshiuhq
+- ___satfractunshiusq
+- ___satfractunshiudq
+- ___satfractunshiutq
+- ___satfractunshiuha
+- ___satfractunshiusa
+- ___satfractunshiuda
+- ___satfractunshiuta
+- ___satfractunssiqq
+- ___satfractunssihq
+- ___satfractunssisq
+- ___satfractunssidq
+- ___satfractunssitq
+- ___satfractunssiha
+- ___satfractunssisa
+- ___satfractunssida
+- ___satfractunssita
+- ___satfractunssiuqq
+- ___satfractunssiuhq
+- ___satfractunssiusq
+- ___satfractunssiudq
+- ___satfractunssiutq
+- ___satfractunssiuha
+- ___satfractunssiusa
+- ___satfractunssiuda
+- ___satfractunssiuta
+- ___satfractunsdiqq
+- ___satfractunsdihq
+- ___satfractunsdisq
+- ___satfractunsdidq
+- ___satfractunsditq
+- ___satfractunsdiha
+- ___satfractunsdisa
+- ___satfractunsdida
+- ___satfractunsdita
+- ___satfractunsdiuqq
+- ___satfractunsdiuhq
+- ___satfractunsdiusq
+- ___satfractunsdiudq
+- ___satfractunsdiutq
+- ___satfractunsdiuha
+- ___satfractunsdiusa
+- ___satfractunsdiuda
+- ___satfractunsdiuta
+- ___satfractunstiqq
+- ___satfractunstihq
+- ___satfractunstisq
+- ___satfractunstidq
+- ___satfractunstitq
+- ___satfractunstiha
+- ___satfractunstisa
+- ___satfractunstida
+- ___satfractunstita
+- ___satfractunstiuqq
+- ___satfractunstiuhq
+- ___satfractunstiusq
+- ___satfractunstiudq
+- ___satfractunstiutq
+- ___satfractunstiuha
+- ___satfractunstiusa
+- ___satfractunstiuda
+- ___satfractunstiuta
+-}
+-
+-%inherit GCC_4.4.0 GCC_4.3.0
+-GCC_4.4.0 {
+- ___sync_fetch_and_add_1
+- ___sync_fetch_and_sub_1
+- ___sync_fetch_and_or_1
+- ___sync_fetch_and_and_1
+- ___sync_fetch_and_xor_1
+- ___sync_fetch_and_nand_1
+- ___sync_add_and_fetch_1
+- ___sync_sub_and_fetch_1
+- ___sync_or_and_fetch_1
+- ___sync_and_and_fetch_1
+- ___sync_xor_and_fetch_1
+- ___sync_nand_and_fetch_1
+- ___sync_bool_compare_and_swap_1
+- ___sync_val_compare_and_swap_1
+- ___sync_lock_test_and_set_1
+-
+- ___sync_fetch_and_add_2
+- ___sync_fetch_and_sub_2
+- ___sync_fetch_and_or_2
+- ___sync_fetch_and_and_2
+- ___sync_fetch_and_xor_2
+- ___sync_fetch_and_nand_2
+- ___sync_add_and_fetch_2
+- ___sync_sub_and_fetch_2
+- ___sync_or_and_fetch_2
+- ___sync_and_and_fetch_2
+- ___sync_xor_and_fetch_2
+- ___sync_nand_and_fetch_2
+- ___sync_bool_compare_and_swap_2
+- ___sync_val_compare_and_swap_2
+- ___sync_lock_test_and_set_2
+-
+- ___sync_fetch_and_add_4
+- ___sync_fetch_and_sub_4
+- ___sync_fetch_and_or_4
+- ___sync_fetch_and_and_4
+- ___sync_fetch_and_xor_4
+- ___sync_fetch_and_nand_4
+- ___sync_add_and_fetch_4
+- ___sync_sub_and_fetch_4
+- ___sync_or_and_fetch_4
+- ___sync_and_and_fetch_4
+- ___sync_xor_and_fetch_4
+- ___sync_nand_and_fetch_4
+- ___sync_bool_compare_and_swap_4
+- ___sync_val_compare_and_swap_4
+- ___sync_lock_test_and_set_4
+-
+- ___sync_fetch_and_add_8
+- ___sync_fetch_and_sub_8
+- ___sync_fetch_and_or_8
+- ___sync_fetch_and_and_8
+- ___sync_fetch_and_xor_8
+- ___sync_fetch_and_nand_8
+- ___sync_add_and_fetch_8
+- ___sync_sub_and_fetch_8
+- ___sync_or_and_fetch_8
+- ___sync_and_and_fetch_8
+- ___sync_xor_and_fetch_8
+- ___sync_nand_and_fetch_8
+- ___sync_bool_compare_and_swap_8
+- ___sync_val_compare_and_swap_8
+- ___sync_lock_test_and_set_8
+-
+- ___sync_fetch_and_add_16
+- ___sync_fetch_and_sub_16
+- ___sync_fetch_and_or_16
+- ___sync_fetch_and_and_16
+- ___sync_fetch_and_xor_16
+- ___sync_fetch_and_nand_16
+- ___sync_add_and_fetch_16
+- ___sync_sub_and_fetch_16
+- ___sync_or_and_fetch_16
+- ___sync_and_and_fetch_16
+- ___sync_xor_and_fetch_16
+- ___sync_nand_and_fetch_16
+- ___sync_bool_compare_and_swap_16
+- ___sync_val_compare_and_swap_16
+- ___sync_lock_test_and_set_16
+-
+- ___sync_synchronize
+-}
+-
+-%inherit GCC_4.5.0 GCC_4.4.0
+-GCC_4.5.0 {
+- ___unordxf2
+- ___unordtf2
++ __smulsi3_highpart
++ __umulsi3_highpart
+ }
+diff --git a/libgcc/config/bfin/t-linux b/libgcc/config/bfin/t-linux
+index 1c42e48..8898157 100644
+--- a/libgcc/config/bfin/t-linux
++++ b/libgcc/config/bfin/t-linux
+@@ -1 +1,2 @@
+-SHLIB_MAPFILES = $(srcdir)/config/bfin/libgcc-glibc.ver
++SHLIB_MAPFILES += $(srcdir)/config/bfin/libgcc-glibc.ver
++SHLIB_MKMAP_OPTS = -v skip_underscore=1
+--
+2.7.4
+
diff --git a/patches/gcc/6.3.0/894-libgcc-fix-DWARF-compilation-with-FDPIC-targets.patch b/patches/gcc/6.3.0/894-libgcc-fix-DWARF-compilation-with-FDPIC-targets.patch
new file mode 100644
index 0000000..ce49de7
--- /dev/null
+++ b/patches/gcc/6.3.0/894-libgcc-fix-DWARF-compilation-with-FDPIC-targets.patch
@@ -0,0 +1,59 @@
+From 9d9f97ca5d1ceba66677bf406c9b31027dc1f22e Mon Sep 17 00:00:00 2001
+From: Waldemar Brodkorb <wbx@openadk.org>
+Date: Fri, 19 Aug 2016 13:54:46 +0200
+Subject: [PATCH] libgcc: fix DWARF compilation with FDPIC targets
+
+The build of unwind-dw2-fde-dip.c currently fails for FDPIC targets with
+the following error:
+
+libgcc/unwind-dw2-fde-dip.c:167:31: error: storage size of 'load_base' isn't known
+ struct elf32_fdpic_loadaddr load_base;
+
+This patch addresses that by defining load_base with the appropriate
+type on FDPIC targets. It has been tested on FRV and Blackfin.
+
+Fixes PR gcc/68468.
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ libgcc/unwind-dw2-fde-dip.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/libgcc/unwind-dw2-fde-dip.c b/libgcc/unwind-dw2-fde-dip.c
+index f7a1c3f..801bce8 100644
+--- a/libgcc/unwind-dw2-fde-dip.c
++++ b/libgcc/unwind-dw2-fde-dip.c
+@@ -124,7 +124,11 @@ static struct frame_hdr_cache_element
+ {
+ _Unwind_Ptr pc_low;
+ _Unwind_Ptr pc_high;
++#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__
++ struct elf32_fdpic_loadaddr load_base;
++#else
+ _Unwind_Ptr load_base;
++#endif
+ const ElfW(Phdr) *p_eh_frame_hdr;
+ const ElfW(Phdr) *p_dynamic;
+ struct frame_hdr_cache_element *link;
+@@ -163,7 +167,7 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
+ struct unw_eh_callback_data *data = (struct unw_eh_callback_data *) ptr;
+ const ElfW(Phdr) *phdr, *p_eh_frame_hdr, *p_dynamic;
+ long n, match;
+-#ifdef __FRV_FDPIC__
++#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__
+ struct elf32_fdpic_loadaddr load_base;
+ #else
+ _Unwind_Ptr load_base;
+@@ -347,7 +351,7 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
+ break;
+ }
+ }
+-# elif defined __FRV_FDPIC__ && defined __linux__
++# elif (defined __FRV_FDPIC__ || defined __BFIN_FDPIC__) && defined __linux__
+ data->dbase = load_base.got_value;
+ # else
+ # error What is DW_EH_PE_datarel base on this platform?
+--
+2.7.4
+
diff --git a/patches/gcc/6.3.0/895-bfin-define-REENTRANT.patch b/patches/gcc/6.3.0/895-bfin-define-REENTRANT.patch
new file mode 100644
index 0000000..e2828a5
--- /dev/null
+++ b/patches/gcc/6.3.0/895-bfin-define-REENTRANT.patch
@@ -0,0 +1,17 @@
+enable _REENTRANT when -lpthread is used
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-6.2.0.orig/gcc/config/bfin/linux.h gcc-6.2.0/gcc/config/bfin/linux.h
+--- gcc-6.2.0.orig/gcc/config/bfin/linux.h 2016-01-04 15:30:50.000000000 +0100
++++ gcc-6.2.0/gcc/config/bfin/linux.h 2016-09-30 20:48:17.446636819 +0200
+@@ -38,6 +38,9 @@
+ "%{static:--start-group} %{mfast-fp:-lbffastfp} %G %L %{static:--end-group} \
+ %{!static:%{mfast-fp:-lbffastfp} %G}"
+
++#undef CPP_SPEC
++#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
++
+ #undef LINK_SPEC
+ #define LINK_SPEC "\
+ %{mfdpic: -m elf32bfinfd -z text} %{shared} %{pie} \
diff --git a/patches/gcc/6.3.0/910-nios2-bad-multilib-default.patch b/patches/gcc/6.3.0/910-nios2-bad-multilib-default.patch
new file mode 100644
index 0000000..61989e5
--- /dev/null
+++ b/patches/gcc/6.3.0/910-nios2-bad-multilib-default.patch
@@ -0,0 +1,28 @@
+diff -ur gcc-6.2.0.orig/gcc/config/nios2/nios2.h gcc-6.2.0/gcc/config/nios2/nios2.h
+--- gcc-6.2.0.orig/gcc/config/nios2/nios2.h 2016-11-29 10:27:50.364479625 -0800
++++ gcc-6.2.0/gcc/config/nios2/nios2.h 2016-11-29 10:29:55.069624746 -0800
+@@ -63,11 +63,11 @@
+ #if TARGET_ENDIAN_DEFAULT == 0
+ # define ASM_SPEC "%{!meb:-EL} %{meb:-EB} %{march=*:-march=%*}"
+ # define LINK_SPEC_ENDIAN "%{!meb:-EL} %{meb:-EB}"
+-# define MULTILIB_DEFAULTS { "EL" }
++# define MULTILIB_DEFAULTS { "mel" }
+ #else
+ # define ASM_SPEC "%{!mel:-EB} %{mel:-EL} %{march=*:-march=%*}"
+ # define LINK_SPEC_ENDIAN "%{!mel:-EB} %{mel:-EL}"
+-# define MULTILIB_DEFAULTS { "EB" }
++# define MULTILIB_DEFAULTS { "meb" }
+ #endif
+
+ #define LINK_SPEC LINK_SPEC_ENDIAN \
+diff -ur gcc-6.2.0.orig/gcc/config/nios2/t-nios2 gcc-6.2.0/gcc/config/nios2/t-nios2
+--- gcc-6.2.0.orig/gcc/config/nios2/t-nios2 2016-11-29 10:27:50.364479625 -0800
++++ gcc-6.2.0/gcc/config/nios2/t-nios2 2016-11-29 10:29:03.517151014 -0800
+@@ -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/6.3.0/930-libgcc-disable-split-stack-nothreads.patch b/patches/gcc/6.3.0/930-libgcc-disable-split-stack-nothreads.patch
new file mode 100644
index 0000000..07f9a73
--- /dev/null
+++ b/patches/gcc/6.3.0/930-libgcc-disable-split-stack-nothreads.patch
@@ -0,0 +1,14 @@
+disable split-stack for non-thread builds
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.3.0.orig/libgcc/config/t-stack gcc-5.3.0/libgcc/config/t-stack
+--- gcc-5.3.0.orig/libgcc/config/t-stack 2010-10-01 21:31:49.000000000 +0200
++++ gcc-5.3.0/libgcc/config/t-stack 2016-03-07 03:25:32.000000000 +0100
+@@ -1,4 +1,6 @@
+ # Makefile fragment to provide generic support for -fsplit-stack.
+ # This should be used in config.host for any host which supports
+ # -fsplit-stack.
++ifeq ($(enable_threads),yes)
+ LIB2ADD_ST += $(srcdir)/generic-morestack.c $(srcdir)/generic-morestack-thread.c
++endif
diff --git a/patches/gcc/6.3.0/940-uclinux-enable-threads.patch b/patches/gcc/6.3.0/940-uclinux-enable-threads.patch
new file mode 100644
index 0000000..490a55b
--- /dev/null
+++ b/patches/gcc/6.3.0/940-uclinux-enable-threads.patch
@@ -0,0 +1,19 @@
+Enable POSIX threads for uClinux targets
+Reported upstream:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-5.4.0.orig/gcc/config.gcc gcc-5.4.0/gcc/config.gcc
+--- gcc-5.4.0.orig/gcc/config.gcc 2015-09-10 16:17:53.000000000 +0200
++++ gcc-5.4.0/gcc/config.gcc 2016-07-01 21:26:02.772958441 +0200
+@@ -808,6 +808,9 @@
+ *-*-uclinux*)
+ extra_options="$extra_options gnu-user.opt"
+ use_gcc_stdint=wrap
++ case ${enable_threads} in
++ "" | yes | posix) thread_file='posix' ;;
++ esac
+ tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
+ ;;
+ *-*-rdos*)