Merge pull request #716 from stilor/gcc7

Add GCC 7.1.0

config/cc/gcc.in

@@ -3,7 +3,7 @@
 ## default y
 ## select CC_SUPPORT_CXX if !LIBC_none
 ## select CC_SUPPORT_FORTRAN
-## select CC_SUPPORT_JAVA
+## select CC_SUPPORT_JAVA if !CC_GCC_6_or_later
 ## select CC_SUPPORT_ADA
 ## select CC_SUPPORT_OBJC
 ## select CC_SUPPORT_OBJCXX
@@ -73,6 +73,11 @@ choice
 # Don't remove next line
 # CT_INSERT_VERSION_BELOW
 
+config CC_GCC_V_7_1_0
+    bool
+    prompt "7.1.0"
+    select CC_GCC_7
+
 config CC_GCC_V_linaro_6_3
     bool
     prompt "linaro-6.3-2017.02"
@@ -141,25 +146,31 @@ config CC_GCC_4_9_or_later
 config CC_GCC_5
     bool
     select CC_GCC_5_or_later
-    select CC_GCC_HAS_LIBMPX
 
 config CC_GCC_5_or_later
     bool
     select CC_GCC_4_9_or_later
+    select CC_GCC_HAS_LIBMPX
 
 config CC_GCC_6
     bool
     select CC_GCC_6_or_later
-    select CC_GCC_HAS_LIBMPX
 
 config CC_GCC_6_or_later
     bool
     select CC_GCC_5_or_later
 
-config CC_GCC_latest
+config CC_GCC_7
+    bool
+    select CC_GCC_7_or_later
+
+config CC_GCC_7_or_later
     bool
     select CC_GCC_6_or_later
-    select CC_GCC_HAS_LIBMPX
+
+config CC_GCC_latest
+    bool
+    select CC_GCC_7_or_later
 
 # Only enable gcc's support for plugins if binutils has it as well
 # They are useful only when doing LTO, but it does no harm enabling
@@ -185,6 +196,7 @@ config CC_GCC_VERSION
     string
 # Don't remove next line
 # CT_INSERT_VERSION_STRING_BELOW
+    default "7.1.0" if CC_GCC_V_7_1_0
     default "linaro-6.3-2017.02" if CC_GCC_V_linaro_6_3
     default "6.3.0" if CC_GCC_V_6_3_0
     default "linaro-5.4-2017.01" if CC_GCC_V_linaro_5_4

patches/gcc/7.1.0/100-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

patches/gcc/7.1.0/1000-libtool-leave-framework-alone.patch

@@ -0,0 +1,14 @@
+--- gcc-6.2.0/libtool-ldflags	2016-12-20 11:13:12.669668125 -0800
++++ gcc-6.2.0/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

patches/gcc/7.1.0/370-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;
+ }

patches/gcc/7.1.0/380-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"

patches/gcc/7.1.0/810-arm-softfloat-libgcc.patch

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

patches/gcc/7.1.0/860-cilk-wchar.patch

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

patches/gcc/7.1.0/891-fix-m68k-uclinux.patch

@@ -0,0 +1,18 @@
+avoids internal compiler error while compiling linux-atomic.c
+See here:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53833
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur gcc-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

patches/gcc/7.1.0/900-libgfortran-missing-include.patch

@@ -0,0 +1,10 @@
+--- gcc-6.3.0/libgfortran/io/close.c.org	2017-01-17 09:43:48.395850000 +0100
++++ gcc-6.3.0/libgfortran/io/close.c	2017-01-17 09:21:05.000000000 +0100
+@@ -25,6 +25,7 @@
+ #include "io.h"
+ #include "unix.h"
+ #include <limits.h>
++#include <stdlib.h>
+
+ typedef enum
+ { CLOSE_DELETE, CLOSE_KEEP, CLOSE_UNSPECIFIED }