Update to gcc 9.2.0

Forward ported patches from GCC 8.3.0 to 9.2.0, refreshed to match
current sources.

In patch 0012-crystax.patch, removed changing sysv4.h header file for
rs6000, since it no longer defines LINK_EH_SPEC.

Removed the following patches because they are part of upstream:
- 0018-ARC-Add-multilib-support-for-linux-targets.patch
- 0020-ARM-fix-cmse.patch
- 0021-arm-Make-arm_cmse.h-C99-compatible.patch
- 0022-ARC-Update-fma-expansions.patch

Renamed 0019-isl-0.20.patch => 0018-isl-0.20.patch.

Signed-off-by: Hans-Christian Noren Egtvedt <hegtvedt@cisco.com>

1 files changed, 163 insertions, 0 deletions

diff --git a/packages/gcc/9.2.0/0002-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch b/packages/gcc/9.2.0/0002-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch
new file mode 100644
index 0000000..e755998
--- /dev/null
+++ b/packages/gcc/9.2.0/0002-gcc-plugin-Win-Dont-need-undefined-extern-var-refs-nor-fpic.patch
@@ -0,0 +1,163 @@
+---
+ config/gcc-plugin.m4 |   18 +++++++++++++-----
+ gcc/configure        |   22 +++++++++++++++-------
+ libcc1/configure     |   22 +++++++++++++++-------
+ 3 files changed, 43 insertions(+), 19 deletions(-)
+
+--- a/config/gcc-plugin.m4
++++ b/config/gcc-plugin.m4
+@@ -21,6 +21,9 @@ AC_DEFUN([GCC_ENABLE_PLUGINS],
+    pluginlibs=
+    plugin_check=yes
+ 
++   PICFLAG="-fPIC"
++   UNDEFINEDPREAMBLE="extern int X;"
++   UNDEFINEDCODE="return X == 0;"
+    case "${host}" in
+      *-*-mingw*)
+        # Since plugin support under MinGW is not as straightforward as on
+@@ -43,6 +46,11 @@ AC_DEFUN([GCC_ENABLE_PLUGINS],
+ 	 export_sym_check=
+        fi
+      ;;
++     *-*-mingw*|*-*-cygwin*|*-*-msys*)
++       PICFLAG=""
++       UNDEFINEDPREAMBLE=""
++       UNDEFINEDCODE=""
++     ;;
+      *)
+        if test x$build = x$host; then
+ 	 export_sym_check="objdump${exeext} -T"
+@@ -94,17 +102,17 @@ AC_DEFUN([GCC_ENABLE_PLUGINS],
+      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"$ac_cv_search_dlopen" = x"no"; then
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -29858,6 +29858,9 @@ fi
+    pluginlibs=
+    plugin_check=yes
+ 
++   PICFLAG="-fPIC"
++   UNDEFINEDPREAMBLE="extern int X;"
++   UNDEFINEDCODE="return X == 0;"
+    case "${host}" in
+      *-*-mingw*)
+        # Since plugin support under MinGW is not as straightforward as on
+@@ -29880,6 +29883,11 @@ fi
+ 	 export_sym_check=
+        fi
+      ;;
++     *-*-mingw*|*-*-cygwin*|*-*-msys*)
++       PICFLAG=""
++       UNDEFINEDPREAMBLE=""
++       UNDEFINEDCODE=""
++     ;;
+      *)
+        if test x$build = x$host; then
+ 	 export_sym_check="objdump${exeext} -T"
+@@ -29992,23 +30000,23 @@ fi
+      case "${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;
+ }
+--- a/libcc1/configure
++++ b/libcc1/configure
+@@ -14785,6 +14785,9 @@ fi
+    pluginlibs=
+    plugin_check=yes
+ 
++   PICFLAG="-fPIC"
++   UNDEFINEDPREAMBLE="extern int X;"
++   UNDEFINEDCODE="return X == 0;"
+    case "${host}" in
+      *-*-mingw*)
+        # Since plugin support under MinGW is not as straightforward as on
+@@ -14807,6 +14810,11 @@ fi
+ 	 export_sym_check=
+        fi
+      ;;
++     *-*-mingw*|*-*-cygwin*|*-*-msys*)
++       PICFLAG=""
++       UNDEFINEDPREAMBLE=""
++       UNDEFINEDCODE=""
++     ;;
+      *)
+        if test x$build = x$host; then
+ 	 export_sym_check="objdump${exeext} -T"
+@@ -14919,23 +14927,23 @@ fi
+      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;
+ }