gcc-9: Add recipes for gcc 9.1 release

Add maintainer entry for gcc-source-9.1.0

Delete entry for gcc-source-7.3.0

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

49 files changed, 3305 insertions, 1 deletions

diff --git a/meta/conf/distro/include/maintainers.inc b/meta/conf/distro/include/maintainers.inc
index 6adfcf8980..12207f3118 100644
--- a/meta/conf/distro/include/maintainers.inc
+++ b/meta/conf/distro/include/maintainers.inc
@@ -196,8 +196,8 @@ RECIPE_MAINTAINER_pn-gcc-crosssdk-${SDK_SYS} = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER_pn-gcc-crosssdk-initial-${SDK_SYS} = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER_pn-gcc-runtime = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER_pn-gcc-sanitizers = "Khem Raj <raj.khem@gmail.com>"
-RECIPE_MAINTAINER_pn-gcc-source-7.3.0 = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER_pn-gcc-source-8.3.0 = "Khem Raj <raj.khem@gmail.com>"
+RECIPE_MAINTAINER_pn-gcc-source-9.1.0 = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER_pn-gccmakedep = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER_pn-gconf = "Ross Burton <ross.burton@intel.com>"
 RECIPE_MAINTAINER_pn-gcr = "Alexander Kanavin <alex.kanavin@gmail.com>"
diff --git a/meta/recipes-devtools/gcc/gcc-9.1.inc b/meta/recipes-devtools/gcc/gcc-9.1.inc
new file mode 100644
index 0000000000..eb2538020c
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1.inc
@@ -0,0 +1,118 @@
+require gcc-common.inc
+
+# Third digit in PV should be incremented after a minor release
+
+PV = "9.1.0"
+
+# BINV should be incremented to a revision after a minor gcc release
+
+BINV = "9.1.0"
+
+FILESEXTRAPATHS =. "${FILE_DIRNAME}/gcc-9.1:${FILE_DIRNAME}/gcc-9.1/backport:"
+
+DEPENDS =+ "mpfr gmp libmpc zlib flex-native"
+NATIVEDEPS = "mpfr-native gmp-native libmpc-native zlib-native flex-native"
+
+LICENSE = "GPL-3.0-with-GCC-exception & GPLv3"
+
+LIC_FILES_CHKSUM = "\
+    file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552 \
+    file://COPYING3;md5=d32239bcb673463ab874e80d47fae504 \
+    file://COPYING3.LIB;md5=6a6a8e020838b23406c81b19c1d46df6 \
+    file://COPYING.LIB;md5=2d5025d4aa3495befef8f17206a5b0a1 \
+    file://COPYING.RUNTIME;md5=fe60d87048567d4fe8c8a0ed2448bcc8 \
+"
+
+BASEURI ?= "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.xz"
+#RELEASE ?= "5a5ca2d"
+#BASEURI ?= "https://repo.or.cz/official-gcc.git/snapshot/${RELEASE}.tar.gz;downloadfilename=gcc-${RELEASE}.tar.gz"
+SRC_URI = "\
+           ${BASEURI} \
+           file://0001-gcc-4.3.1-ARCH_FLAGS_FOR_TARGET.patch \
+           file://0002-gcc-poison-system-directories.patch \
+           file://0003-gcc-4.3.3-SYSROOT_CFLAGS_FOR_TARGET.patch \
+           file://0004-64-bit-multilib-hack.patch \
+           file://0005-optional-libstdc.patch \
+           file://0006-gcc-disable-MASK_RELAX_PIC_CALLS-bit.patch \
+           file://0007-COLLECT_GCC_OPTIONS.patch \
+           file://0008-Use-the-defaults.h-in-B-instead-of-S-and-t-oe-in-B.patch \
+           file://0009-fortran-cross-compile-hack.patch \
+           file://0010-cpp-honor-sysroot.patch \
+           file://0011-MIPS64-Default-to-N64-ABI.patch \
+           file://0012-Define-GLIBC_DYNAMIC_LINKER-and-UCLIBC_DYNAMIC_LINKE.patch \
+           file://0013-gcc-Fix-argument-list-too-long-error.patch \
+           file://0014-Disable-sdt.patch \
+           file://0015-libtool.patch \
+           file://0016-gcc-armv4-pass-fix-v4bx-to-linker-to-support-EABI.patch \
+           file://0017-Use-the-multilib-config-files-from-B-instead-of-usin.patch \
+           file://0018-Avoid-using-libdir-from-.la-which-usually-points-to-.patch \
+           file://0019-export-CPP.patch \
+           file://0020-Ensure-target-gcc-headers-can-be-included.patch \
+           file://0021-gcc-4.8-won-t-build-with-disable-dependency-tracking.patch \
+           file://0022-Don-t-search-host-directory-during-relink-if-inst_pr.patch \
+           file://0023-Use-SYSTEMLIBS_DIR-replacement-instead-of-hardcoding.patch \
+           file://0024-aarch64-Add-support-for-musl-ldso.patch \
+           file://0025-libcc1-fix-libcc1-s-install-path-and-rpath.patch \
+           file://0026-handle-sysroot-support-for-nativesdk-gcc.patch \
+           file://0027-Search-target-sysroot-gcc-version-specific-dirs-with.patch \
+           file://0028-Fix-various-_FOR_BUILD-and-related-variables.patch \
+           file://0029-nios2-Define-MUSL_DYNAMIC_LINKER.patch \
+           file://0030-Add-ssp_nonshared-to-link-commandline-for-musl-targe.patch \
+           file://0031-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch \
+           file://0032-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch \
+           file://0033-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch \
+           file://0034-sync-gcc-stddef.h-with-musl.patch \
+           file://0035-fix-segmentation-fault-in-precompiled-header-generat.patch \
+           file://0036-Fix-for-testsuite-failure.patch \
+           file://0037-Re-introduce-spe-commandline-options.patch \
+"
+SRC_URI[md5sum] = "6069ae3737cf02bf2cb44a391ef0e937"
+SRC_URI[sha256sum] = "79a66834e96a6050d8fe78db2c3b32fb285b230b855d0a66288235bc04b327a0"
+S = "${TMPDIR}/work-shared/gcc-${PV}-${PR}/gcc-${PV}"
+# For dev release snapshotting
+#S = "${TMPDIR}/work-shared/gcc-${PV}-${PR}/official-gcc-${RELEASE}"
+#B = "${WORKDIR}/gcc-${PV}/build.${HOST_SYS}.${TARGET_SYS}"
+
+# Language Overrides
+FORTRAN = ""
+JAVA = ""
+
+LTO = "--enable-lto"
+SSP ?= "--disable-libssp"
+SSP_mingw32 = "--enable-libssp"
+
+EXTRA_OECONF_BASE = "\
+    ${LTO} \
+    ${SSP} \
+    --enable-libitm \
+    --disable-bootstrap \
+    --disable-libmudflap \
+    --with-system-zlib \
+    ${@'--with-linker-hash-style=${LINKER_HASH_STYLE}' if '${LINKER_HASH_STYLE}' else ''} \
+    --enable-linker-build-id \
+    --with-ppl=no \
+    --with-cloog=no \
+    --enable-checking=release \
+    --enable-cheaders=c_global \
+    --without-isl \
+"
+
+EXTRA_OECONF_INITIAL = "\
+    --disable-libmudflap \
+    --disable-libgomp \
+    --disable-libitm \
+    --disable-libquadmath \
+    --with-system-zlib \
+    --disable-lto \
+    --disable-plugin \
+    --enable-linker-build-id \
+    --enable-decimal-float=no \
+    --without-isl \
+    --disable-libssp \
+"
+
+EXTRA_OECONF_PATHS = "\
+    --with-gxx-include-dir=/not/exist{target_includedir}/c++/${BINV} \
+    --with-sysroot=/not/exist \
+    --with-build-sysroot=${STAGING_DIR_TARGET} \
+"
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0001-gcc-4.3.1-ARCH_FLAGS_FOR_TARGET.patch b/meta/recipes-devtools/gcc/gcc-9.1/0001-gcc-4.3.1-ARCH_FLAGS_FOR_TARGET.patch
new file mode 100644
index 0000000000..33c910cc53
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0001-gcc-4.3.1-ARCH_FLAGS_FOR_TARGET.patch
@@ -0,0 +1,42 @@
+From f1f6d84aadc4e3cde707b1ec8490f5dc46d4c8e0 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 08:37:11 +0400
+Subject: [PATCH 01/37] gcc-4.3.1: ARCH_FLAGS_FOR_TARGET
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [embedded specific]
+---
+ configure    | 2 +-
+ configure.ac | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/configure b/configure
+index adf4fda0f69..8a04eea4c71 100755
+--- a/configure
++++ b/configure
+@@ -7602,7 +7602,7 @@ fi
+ # for target_alias and gcc doesn't manage it consistently.
+ target_configargs="--cache-file=./config.cache ${target_configargs}"
+ 
+-FLAGS_FOR_TARGET=
++FLAGS_FOR_TARGET="$ARCH_FLAGS_FOR_TARGET"
+ case " $target_configdirs " in
+  *" newlib "*)
+   case " $target_configargs " in
+diff --git a/configure.ac b/configure.ac
+index 87f2aee0500..01b46b8bed4 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -3118,7 +3118,7 @@ fi
+ # for target_alias and gcc doesn't manage it consistently.
+ target_configargs="--cache-file=./config.cache ${target_configargs}"
+ 
+-FLAGS_FOR_TARGET=
++FLAGS_FOR_TARGET="$ARCH_FLAGS_FOR_TARGET"
+ case " $target_configdirs " in
+  *" newlib "*)
+   case " $target_configargs " in
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0002-gcc-poison-system-directories.patch b/meta/recipes-devtools/gcc/gcc-9.1/0002-gcc-poison-system-directories.patch
new file mode 100644
index 0000000000..1231567410
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0002-gcc-poison-system-directories.patch
@@ -0,0 +1,203 @@
+From 733ca3372e4125170d4531bcd33e48eeb36bfec0 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 08:59:00 +0400
+Subject: [PATCH 02/37] gcc: poison-system-directories
+
+Add /sw/include and /opt/include based on the original
+zecke-no-host-includes.patch patch.  The original patch checked for
+/usr/include, /sw/include and /opt/include and then triggered a failure and
+aborted.
+
+Instead, we add the two missing items to the current scan.  If the user
+wants this to be a failure, they can add "-Werror=poison-system-directories".
+
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/common.opt      |  4 ++++
+ gcc/config.in       |  6 ++++++
+ gcc/configure       | 16 ++++++++++++++++
+ gcc/configure.ac    | 10 ++++++++++
+ gcc/doc/invoke.texi |  9 +++++++++
+ gcc/gcc.c           |  2 ++
+ gcc/incpath.c       | 21 +++++++++++++++++++++
+ 7 files changed, 68 insertions(+)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 9a5e9af06ca..211f2b2260e 100644
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -684,6 +684,10 @@ Wreturn-local-addr
+ Common Var(warn_return_local_addr) Init(1) Warning
+ Warn about returning a pointer/reference to a local or temporary variable.
+ 
++Wpoison-system-directories
++Common Var(flag_poison_system_directories) Init(1) Warning
++Warn for -I and -L options using system directories if cross compiling
++
+ Wshadow
+ Common Var(warn_shadow) Warning
+ Warn when one variable shadows another.  Same as -Wshadow=global.
+diff --git a/gcc/config.in b/gcc/config.in
+index 48a533bf208..fc3043bbdfb 100644
+--- a/gcc/config.in
++++ b/gcc/config.in
+@@ -200,6 +200,12 @@
+ #endif
+ 
+ 
++/* Define to warn for use of native system header directories */
++#ifndef USED_FOR_TARGET
++#undef ENABLE_POISON_SYSTEM_DIRECTORIES
++#endif
++
++
+ /* Define if you want all operations on RTL (the basic data structure of the
+    optimizer and back end) to be checked for dynamic type safety at runtime.
+    This is quite expensive. */
+diff --git a/gcc/configure b/gcc/configure
+index d6a48ef76e7..2e08396622e 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -995,6 +995,7 @@ with_system_zlib
+ enable_maintainer_mode
+ enable_link_mutex
+ enable_version_specific_runtime_libs
++enable_poison_system_directories
+ enable_plugin
+ enable_host_shared
+ enable_libquadmath_support
+@@ -1748,6 +1749,8 @@ Optional Features:
+   --enable-version-specific-runtime-libs
+                           specify that runtime libraries should be installed
+                           in a compiler-specific directory
++  --enable-poison-system-directories
++                          warn for use of native system header directories
+   --enable-plugin         enable plugin support
+   --enable-host-shared    build host code as shared libraries
+   --disable-libquadmath-support
+@@ -29717,6 +29720,19 @@ if test "${enable_version_specific_runtime_libs+set}" = set; then :
+ fi
+ 
+ 
++# Check whether --enable-poison-system-directories was given.
++if test "${enable_poison_system_directories+set}" = set; then :
++  enableval=$enable_poison_system_directories;
++else
++  enable_poison_system_directories=no
++fi
++
++if test "x${enable_poison_system_directories}" = "xyes"; then
++
++$as_echo "#define ENABLE_POISON_SYSTEM_DIRECTORIES 1" >>confdefs.h
++
++fi
++
+ # Substitute configuration variables
+ 
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 78370352938..7d34911573e 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -6375,6 +6375,16 @@ AC_ARG_ENABLE(version-specific-runtime-libs,
+                 [specify that runtime libraries should be
+                  installed in a compiler-specific directory])])
+ 
++AC_ARG_ENABLE([poison-system-directories],
++             AS_HELP_STRING([--enable-poison-system-directories],
++                            [warn for use of native system header directories]),,
++             [enable_poison_system_directories=no])
++if test "x${enable_poison_system_directories}" = "xyes"; then
++  AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES],
++           [1],
++           [Define to warn for use of native system header directories])
++fi
++
+ # Substitute configuration variables
+ AC_SUBST(subdirs)
+ AC_SUBST(srcdir)
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 99fd97404e1..001868e1509 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -330,6 +330,7 @@ Objective-C and Objective-C++ Dialects}.
+ -Wpacked  -Wpacked-bitfield-compat -Wpacked-not-aligned  -Wpadded @gol
+ -Wparentheses  -Wno-pedantic-ms-format @gol
+ -Wplacement-new  -Wplacement-new=@var{n} @gol
++-Wno-poison-system-directories @gol
+ -Wpointer-arith  -Wpointer-compare  -Wno-pointer-to-int-cast @gol
+ -Wno-pragmas  -Wno-prio-ctor-dtor  -Wredundant-decls @gol
+ -Wrestrict  -Wno-return-local-addr @gol
+@@ -6254,6 +6255,14 @@ made up of data only and thus requires no special treatment.  But, for
+ most targets, it is made up of code and thus requires the stack to be
+ made executable in order for the program to work properly.
+ 
++@item -Wno-poison-system-directories
++@opindex Wno-poison-system-directories
++Do not warn for @option{-I} or @option{-L} options using system
++directories such as @file{/usr/include} when cross compiling.  This
++option is intended for use in chroot environments when such
++directories contain the correct headers and libraries for the target
++system rather than the host.
++
+ @item -Wfloat-equal
+ @opindex Wfloat-equal
+ @opindex Wno-float-equal
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index 797ed36616f..79c38d858d1 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -1042,6 +1042,8 @@ proper position among the other output files.  */
+    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
++    %{Wno-poison-system-directories:--no-poison-system-directories} \
++    %{Werror=poison-system-directories:--error-poison-system-directories} \
+     %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) " \
+     VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
+     %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
+diff --git a/gcc/incpath.c b/gcc/incpath.c
+index bcbe2082905..5752298bbf2 100644
+--- a/gcc/incpath.c
++++ b/gcc/incpath.c
+@@ -26,6 +26,7 @@
+ #include "intl.h"
+ #include "incpath.h"
+ #include "cppdefault.h"
++#include "diagnostic-core.h"
+ 
+ /* Microsoft Windows does not natively support inodes.
+    VMS has non-numeric inodes.  */
+@@ -393,6 +394,26 @@ merge_include_chains (const char *sysroot, cpp_reader *pfile, int verbose)
+ 	}
+       fprintf (stderr, _("End of search list.\n"));
+     }
++
++#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES
++  if (flag_poison_system_directories)
++    {
++       struct cpp_dir *p;
++
++       for (p = heads[INC_QUOTE]; p; p = p->next)
++         {
++          if ((!strncmp (p->name, "/usr/include", 12))
++              || (!strncmp (p->name, "/usr/local/include", 18))
++              || (!strncmp (p->name, "/usr/X11R6/include", 18))
++              || (!strncmp (p->name, "/sw/include", 11))
++              || (!strncmp (p->name, "/opt/include", 12)))
++            warning (OPT_Wpoison_system_directories,
++                     "include location \"%s\" is unsafe for "
++                     "cross-compilation",
++                     p->name);
++         }
++    }
++#endif
+ }
+ 
+ /* Use given -I paths for #include "..." but not #include <...>, and
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0003-gcc-4.3.3-SYSROOT_CFLAGS_FOR_TARGET.patch b/meta/recipes-devtools/gcc/gcc-9.1/0003-gcc-4.3.3-SYSROOT_CFLAGS_FOR_TARGET.patch
new file mode 100644
index 0000000000..916c374e3e
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0003-gcc-4.3.3-SYSROOT_CFLAGS_FOR_TARGET.patch
@@ -0,0 +1,73 @@
+From 320352cc741c89f1a9b2ee7929193d255e65f27a Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:08:31 +0400
+Subject: [PATCH 03/37] gcc-4.3.3: SYSROOT_CFLAGS_FOR_TARGET
+
+Before committing, I noticed that PR/32161 was marked as a dup of PR/32009, but my previous patch did not fix it.
+
+This alternative patch is better because it lets you just use CFLAGS_FOR_TARGET to set the compilation flags for libgcc. Since bootstrapped target libraries are never compiled with the native compiler, it makes little sense to use different flags for stage1 and later stages. And it also makes little sense to use a different variable than CFLAGS_FOR_TARGET.
+
+Other changes I had to do include:
+
+- moving the creation of default CFLAGS_FOR_TARGET from Makefile.am to configure.ac, because otherwise the BOOT_CFLAGS are substituted into CFLAGS_FOR_TARGET (which is "-O2 -g $(CFLAGS)") via $(CFLAGS). It is also cleaner this way though.
+
+- passing the right CFLAGS to configure scripts as exported environment variables
+
+I also stopped passing LIBCFLAGS to configure scripts since they are unused in the whole src tree. And I updated the documentation as H-P reminded me to do.
+
+Bootstrapped/regtested i686-pc-linux-gnu, will commit to 4.4 shortly. Ok for 4.3?
+
+Signed-off-by: Paolo Bonzini  <bonzini@gnu.org>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ configure | 32 ++++++++++++++++++++++++++++++++
+ 1 file changed, 32 insertions(+)
+
+diff --git a/configure b/configure
+index 8a04eea4c71..3b0eed74847 100755
+--- a/configure
++++ b/configure
+@@ -6863,6 +6863,38 @@ fi
+ 
+ 
+ 
++# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
++# might be empty or "-g".  We don't require a C++ compiler, so CXXFLAGS
++# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
++# We want to ensure that TARGET libraries (which we know are built with
++# gcc) are built with "-O2 -g", so include those options when setting
++# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
++if test "x$CFLAGS_FOR_TARGET" = x; then
++  CFLAGS_FOR_TARGET=$CFLAGS
++  case " $CFLAGS " in
++    *" -O2 "*) ;;
++    *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
++  esac
++  case " $CFLAGS " in
++    *" -g "* | *" -g3 "*) ;;
++    *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
++  esac
++fi
++
++
++if test "x$CXXFLAGS_FOR_TARGET" = x; then
++  CXXFLAGS_FOR_TARGET=$CXXFLAGS
++  case " $CXXFLAGS " in
++    *" -O2 "*) ;;
++    *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
++  esac
++  case " $CXXFLAGS " in
++    *" -g "* | *" -g3 "*) ;;
++    *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
++  esac
++fi
++
++
+ # Handle --with-headers=XXX.  If the value is not "yes", the contents of
+ # the named directory are copied to $(tooldir)/sys-include.
+ if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0004-64-bit-multilib-hack.patch b/meta/recipes-devtools/gcc/gcc-9.1/0004-64-bit-multilib-hack.patch
new file mode 100644
index 0000000000..137261b86c
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0004-64-bit-multilib-hack.patch
@@ -0,0 +1,119 @@
+From 150d946082b3e21614d1cd0eb4752871495fe519 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:10:06 +0400
+Subject: [PATCH 04/37] 64-bit multilib hack.
+
+GCC has internal multilib handling code but it assumes a very specific rigid directory
+layout. The build system implementation of multilib layout is very generic and allows
+complete customisation of the library directories.
+
+This patch is a partial solution to allow any custom directories to be passed into gcc
+and handled correctly. It forces gcc to use the base_libdir (which is the current
+directory, "."). We need to do this for each multilib that is configured as we don't
+know which compiler options may be being passed into the compiler. Since we have a compiler
+per mulitlib at this point that isn't an issue.
+
+The one problem is the target compiler is only going to work for the default multlilib at
+this point. Ideally we'd figure out which multilibs were being enabled with which paths
+and be able to patch these entries with a complete set of correct paths but this we
+don't have such code at this point. This is something the target gcc recipe should do
+and override these platform defaults in its build config.
+
+Do same for riscv64 and aarch64
+
+RP 15/8/11
+
+Upstream-Status: Inappropriate[OE-Specific]
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Elvis Dowson <elvis.dowson@gmail.com>
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+---
+ gcc/config/aarch64/t-aarch64-linux |  8 ++++----
+ gcc/config/i386/t-linux64          |  6 ++----
+ gcc/config/mips/t-linux64          | 10 +++-------
+ gcc/config/riscv/t-linux           |  6 ++++--
+ gcc/config/rs6000/t-linux64        |  5 ++---
+ 5 files changed, 15 insertions(+), 20 deletions(-)
+
+diff --git a/gcc/config/aarch64/t-aarch64-linux b/gcc/config/aarch64/t-aarch64-linux
+index 5ad670ba2ce..e26019e7157 100644
+--- a/gcc/config/aarch64/t-aarch64-linux
++++ b/gcc/config/aarch64/t-aarch64-linux
+@@ -21,8 +21,8 @@
+ LIB1ASMSRC   = aarch64/lib1funcs.asm
+ LIB1ASMFUNCS = _aarch64_sync_cache_range
+ 
+-AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be)
+-MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu)
+-MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu)
++#AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be)
++#MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu)
++#MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu)
+ 
+-MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu_ilp32)
++#MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu_ilp32)
+diff --git a/gcc/config/i386/t-linux64 b/gcc/config/i386/t-linux64
+index c686ab2f0d2..c82b60dadcd 100644
+--- a/gcc/config/i386/t-linux64
++++ b/gcc/config/i386/t-linux64
+@@ -32,7 +32,5 @@
+ #
+ comma=,
+ MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
+-MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
+-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+-MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu)
+-MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
++MULTILIB_DIRNAMES = . .
++MULTILIB_OSDIRNAMES = ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
+diff --git a/gcc/config/mips/t-linux64 b/gcc/config/mips/t-linux64
+index 3a2ff700d7d..13ef19576b5 100644
+--- a/gcc/config/mips/t-linux64
++++ b/gcc/config/mips/t-linux64
+@@ -17,10 +17,6 @@
+ # <http://www.gnu.org/licenses/>.
+ 
+ MULTILIB_OPTIONS = mabi=n32/mabi=32/mabi=64
+-MULTILIB_DIRNAMES = n32 32 64
+-MIPS_EL = $(if $(filter %el, $(firstword $(subst -, ,$(target)))),el)
+-MIPS_SOFT = $(if $(strip $(filter MASK_SOFT_FLOAT_ABI, $(target_cpu_default)) $(filter soft, $(with_float))),soft)
+-MULTILIB_OSDIRNAMES = \
+-	../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \
+-	../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \
+-	../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT))
++MULTILIB_DIRNAMES = . . .
++MULTILIB_OSDIRNAMES = ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
++
+diff --git a/gcc/config/riscv/t-linux b/gcc/config/riscv/t-linux
+index 216d2776a18..e4d817621fc 100644
+--- a/gcc/config/riscv/t-linux
++++ b/gcc/config/riscv/t-linux
+@@ -1,3 +1,5 @@
+ # Only XLEN and ABI affect Linux multilib dir names, e.g. /lib32/ilp32d/
+-MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib64,$(MULTILIB_DIRNAMES)))
+-MULTILIB_OSDIRNAMES := $(patsubst lib%,../lib%,$(MULTILIB_DIRNAMES))
++#MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib64,$(MULTILIB_DIRNAMES)))
++MULTILIB_DIRNAMES := . .
++#MULTILIB_OSDIRNAMES := $(patsubst lib%,../lib%,$(MULTILIB_DIRNAMES))
++MULTILIB_OSDIRNAMES := ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
+diff --git a/gcc/config/rs6000/t-linux64 b/gcc/config/rs6000/t-linux64
+index f3c6e2be1d9..bd0393155fa 100644
+--- a/gcc/config/rs6000/t-linux64
++++ b/gcc/config/rs6000/t-linux64
+@@ -26,10 +26,9 @@
+ # MULTILIB_OSDIRNAMES according to what is found on the target.
+ 
+ MULTILIB_OPTIONS    := m64/m32
+-MULTILIB_DIRNAMES   := 64 32
++MULTILIB_DIRNAMES   := . .
+ MULTILIB_EXTRA_OPTS := 
+-MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
++MULTILIB_OSDIRNAMES := ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
+ 
+ rs6000-linux.o: $(srcdir)/config/rs6000/rs6000-linux.c
+ 	$(COMPILE) $<
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0005-optional-libstdc.patch b/meta/recipes-devtools/gcc/gcc-9.1/0005-optional-libstdc.patch
new file mode 100644
index 0000000000..d8e970a1aa
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0005-optional-libstdc.patch
@@ -0,0 +1,125 @@
+From a3323ea74f0793b35af4a4cdbe5e99fe21e4816b Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:12:56 +0400
+Subject: [PATCH 05/37] optional libstdc
+
+gcc-runtime builds libstdc++ separately from gcc-cross-*. Its configure tests using g++
+will not run correctly since by default the linker will try to link against libstdc++
+which shouldn't exist yet. We need an option to disable -lstdc++
+option whilst leaving -lc, -lgcc and other automatic library dependencies added by gcc
+driver. This patch adds such an option which only disables the -lstdc++.
+
+A "standard" gcc build uses xgcc and hence avoids this. We should ask upstream how to
+do this officially, the likely answer is don't build libstdc++ separately.
+
+RP 29/6/10
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [embedded specific]
+---
+ gcc/c-family/c.opt  |  4 ++++
+ gcc/cp/g++spec.c    |  1 +
+ gcc/doc/invoke.texi | 32 +++++++++++++++++++++++++++++++-
+ gcc/gcc.c           |  1 +
+ 4 files changed, 37 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
+index 88c72c51c21..a7029592aa3 100644
+--- a/gcc/c-family/c.opt
++++ b/gcc/c-family/c.opt
+@@ -1948,6 +1948,10 @@ nostdinc++
+ C++ ObjC++
+ Do not search standard system include directories for C++.
+ 
++nostdlib++
++Driver
++Do not link standard C++ runtime library
++
+ o
+ C ObjC C++ ObjC++ Joined Separate
+ ; Documented in common.opt
+diff --git a/gcc/cp/g++spec.c b/gcc/cp/g++spec.c
+index 6c4574a837d..0e2657f00ee 100644
+--- a/gcc/cp/g++spec.c
++++ b/gcc/cp/g++spec.c
+@@ -137,6 +137,7 @@ lang_specific_driver (struct cl_decoded_option **in_decoded_options,
+       switch (decoded_options[i].opt_index)
+ 	{
+ 	case OPT_nostdlib:
++	case OPT_nostdlib__:
+ 	case OPT_nodefaultlibs:
+ 	  library = -1;
+ 	  break;
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 001868e1509..4186c2616ab 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -226,6 +226,9 @@ in the following sections.
+ -fno-weak  -nostdinc++ @gol
+ -fvisibility-inlines-hidden @gol
+ -fvisibility-ms-compat @gol
++-fvtable-verify=@r{[}std@r{|}preinit@r{|}none@r{]} @gol
++-fvtv-counts -fvtv-debug @gol
++-nostdlib++ @gol
+ -fext-numeric-literals @gol
+ -Wabi=@var{n}  -Wabi-tag  -Wconversion-null  -Wctor-dtor-privacy @gol
+ -Wdelete-non-virtual-dtor  -Wdeprecated-copy  -Wdeprecated-copy-dtor @gol
+@@ -536,7 +539,7 @@ Objective-C and Objective-C++ Dialects}.
+ -pie  -pthread  -r  -rdynamic @gol
+ -s  -static  -static-pie  -static-libgcc  -static-libstdc++ @gol
+ -static-libasan  -static-libtsan  -static-liblsan  -static-libubsan @gol
+--shared  -shared-libgcc  -symbolic @gol
++-shared  -shared-libgcc  -symbolic -nostdlib++ @gol
+ -T @var{script}  -Wl,@var{option}  -Xlinker @var{option} @gol
+ -u @var{symbol}  -z @var{keyword}}
+ 
+@@ -13259,6 +13262,33 @@ Specify that the program entry point is @var{entry}.  The argument is
+ interpreted by the linker; the GNU linker accepts either a symbol name
+ or an address.
+ 
++@item -nostdlib++
++@opindex nostdlib++
++Do not use the standard system C++ runtime libraries when linking.
++Only the libraries you specify will be passed to the linker.
++
++@cindex @option{-lgcc}, use with @option{-nostdlib}
++@cindex @option{-nostdlib} and unresolved references
++@cindex unresolved references and @option{-nostdlib}
++@cindex @option{-lgcc}, use with @option{-nodefaultlibs}
++@cindex @option{-nodefaultlibs} and unresolved references
++@cindex unresolved references and @option{-nodefaultlibs}
++One of the standard libraries bypassed by @option{-nostdlib} and
++@option{-nodefaultlibs} is @file{libgcc.a}, a library of internal subroutines
++which GCC uses to overcome shortcomings of particular machines, or special
++needs for some languages.
++(@xref{Interface,,Interfacing to GCC Output,gccint,GNU Compiler
++Collection (GCC) Internals},
++for more discussion of @file{libgcc.a}.)
++In most cases, you need @file{libgcc.a} even when you want to avoid
++other standard libraries.  In other words, when you specify @option{-nostdlib}
++or @option{-nodefaultlibs} you should usually specify @option{-lgcc} as well.
++This ensures that you have no unresolved references to internal GCC
++library subroutines.
++(An example of such an internal subroutine is @code{__main}, used to ensure C++
++constructors are called; @pxref{Collect2,,@code{collect2}, gccint,
++GNU Compiler Collection (GCC) Internals}.)
++
+ @item -pie
+ @opindex pie
+ Produce a dynamically linked position independent executable on targets
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index 79c38d858d1..308872aef5f 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -1052,6 +1052,7 @@ proper position among the other output files.  */
+     %(mflib) " STACK_SPLIT_SPEC "\
+     %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
+     %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
++    %{!nostdlib++:}\
+     %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*}  \n%(post_link) }}}}}}"
+ #endif
+ 
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0006-gcc-disable-MASK_RELAX_PIC_CALLS-bit.patch b/meta/recipes-devtools/gcc/gcc-9.1/0006-gcc-disable-MASK_RELAX_PIC_CALLS-bit.patch
new file mode 100644
index 0000000000..4a552d5169
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0006-gcc-disable-MASK_RELAX_PIC_CALLS-bit.patch
@@ -0,0 +1,59 @@
+From ca3b3ac12d9b6e1065333dec89e7be2c733509d9 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:14:20 +0400
+Subject: [PATCH 06/37] gcc: disable MASK_RELAX_PIC_CALLS bit
+
+The new feature added after 4.3.3
+"http://www.pubbs.net/200909/gcc/94048-patch-add-support-for-rmipsjalr.html"
+will cause cc1plus eat up all the system memory when build webkit-gtk.
+The function mips_get_pic_call_symbol keeps on recursively calling itself.
+Disable this feature to walk aside the bug.
+
+Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [configuration]
+---
+ gcc/configure    | 7 -------
+ gcc/configure.ac | 7 -------
+ 2 files changed, 14 deletions(-)
+
+diff --git a/gcc/configure b/gcc/configure
+index 2e08396622e..d36cb51bc2c 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -27509,13 +27509,6 @@ $as_echo_n "checking assembler and linker for explicit JALR relocation... " >&6;
+         rm -f conftest.*
+       fi
+     fi
+-    if test $gcc_cv_as_ld_jalr_reloc = yes; then
+-      if test x$target_cpu_default = x; then
+-        target_cpu_default=MASK_RELAX_PIC_CALLS
+-      else
+-        target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS"
+-      fi
+-    fi
+     { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ld_jalr_reloc" >&5
+ $as_echo "$gcc_cv_as_ld_jalr_reloc" >&6; }
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 7d34911573e..dfa88c35f3f 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -4816,13 +4816,6 @@ x:
+         rm -f conftest.*
+       fi
+     fi
+-    if test $gcc_cv_as_ld_jalr_reloc = yes; then
+-      if test x$target_cpu_default = x; then
+-        target_cpu_default=MASK_RELAX_PIC_CALLS
+-      else
+-        target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS"
+-      fi
+-    fi
+     AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc)
+ 
+     AC_CACHE_CHECK([linker for .eh_frame personality relaxation],
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0007-COLLECT_GCC_OPTIONS.patch b/meta/recipes-devtools/gcc/gcc-9.1/0007-COLLECT_GCC_OPTIONS.patch
new file mode 100644
index 0000000000..a522ada448
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0007-COLLECT_GCC_OPTIONS.patch
@@ -0,0 +1,38 @@
+From c7b8c2a6e81daaa50047c336c8ee90086aa4d4d5 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:16:28 +0400
+Subject: [PATCH 07/37] COLLECT_GCC_OPTIONS
+
+This patch adds --sysroot into COLLECT_GCC_OPTIONS which is used to
+invoke collect2.
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/gcc.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index 308872aef5f..30845e5b125 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -4804,6 +4804,15 @@ set_collect_gcc_options (void)
+ 		sizeof ("COLLECT_GCC_OPTIONS=") - 1);
+ 
+   first_time = TRUE;
++#ifdef HAVE_LD_SYSROOT
++  if (target_system_root_changed && target_system_root)
++    {
++      obstack_grow (&collect_obstack, "'--sysroot=", sizeof("'--sysroot=")-1);
++      obstack_grow (&collect_obstack, target_system_root,strlen(target_system_root));
++      obstack_grow (&collect_obstack, "'", 1);
++      first_time = FALSE;
++    }
++#endif
+   for (i = 0; (int) i < n_switches; i++)
+     {
+       const char *const *args;
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0008-Use-the-defaults.h-in-B-instead-of-S-and-t-oe-in-B.patch b/meta/recipes-devtools/gcc/gcc-9.1/0008-Use-the-defaults.h-in-B-instead-of-S-and-t-oe-in-B.patch
new file mode 100644
index 0000000000..2ef94a0b85
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0008-Use-the-defaults.h-in-B-instead-of-S-and-t-oe-in-B.patch
@@ -0,0 +1,96 @@
+From 2f65b8bbf9c7c4bc0b94bb7ba9f6a8eb8675c9ab Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:17:25 +0400
+Subject: [PATCH 08/37] Use the defaults.h in ${B} instead of ${S}, and t-oe in
+ ${B}
+
+Use the defaults.h in ${B} instead of ${S}, and t-oe in ${B}, so that
+the source can be shared between gcc-cross-initial,
+gcc-cross-intermediate, gcc-cross, gcc-runtime, and also the sdk build.
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+
+While compiling gcc-crosssdk-initial-x86_64 on some host, there is
+occasionally failure that test the existance of default.h doesn't
+work, the reason is tm_include_list='** defaults.h' rather than
+tm_include_list='** ./defaults.h'
+
+So we add the test condition for this situation.
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ gcc/Makefile.in  | 2 +-
+ gcc/configure    | 4 ++--
+ gcc/configure.ac | 4 ++--
+ gcc/mkconfig.sh  | 4 ++--
+ 4 files changed, 7 insertions(+), 7 deletions(-)
+
+diff --git a/gcc/Makefile.in b/gcc/Makefile.in
+index 508c674cbdc..3ccff1614bb 100644
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -540,7 +540,7 @@ TARGET_SYSTEM_ROOT = @TARGET_SYSTEM_ROOT@
+ TARGET_SYSTEM_ROOT_DEFINE = @TARGET_SYSTEM_ROOT_DEFINE@
+ 
+ xmake_file=@xmake_file@
+-tmake_file=@tmake_file@
++tmake_file=@tmake_file@ ./t-oe
+ TM_ENDIAN_CONFIG=@TM_ENDIAN_CONFIG@
+ TM_MULTILIB_CONFIG=@TM_MULTILIB_CONFIG@
+ TM_MULTILIB_EXCEPTIONS_CONFIG=@TM_MULTILIB_EXCEPTIONS_CONFIG@
+diff --git a/gcc/configure b/gcc/configure
+index d36cb51bc2c..7acc7e487b0 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -12341,8 +12341,8 @@ for f in $tm_file; do
+        tm_include_list="${tm_include_list} $f"
+        ;;
+     defaults.h )
+-       tm_file_list="${tm_file_list} \$(srcdir)/$f"
+-       tm_include_list="${tm_include_list} $f"
++       tm_file_list="${tm_file_list} ./$f"
++       tm_include_list="${tm_include_list} ./$f"
+        ;;
+     * )
+        tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index dfa88c35f3f..f5d5e5c16a8 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -1968,8 +1968,8 @@ for f in $tm_file; do
+        tm_include_list="${tm_include_list} $f"
+        ;;
+     defaults.h )
+-       tm_file_list="${tm_file_list} \$(srcdir)/$f"
+-       tm_include_list="${tm_include_list} $f"
++       tm_file_list="${tm_file_list} ./$f"
++       tm_include_list="${tm_include_list} ./$f"
+        ;;
+     * )
+        tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
+diff --git a/gcc/mkconfig.sh b/gcc/mkconfig.sh
+index 308b87d0cc1..19068cbc24a 100644
+--- a/gcc/mkconfig.sh
++++ b/gcc/mkconfig.sh
+@@ -77,7 +77,7 @@ if [ -n "$HEADERS" ]; then
+     if [ $# -ge 1 ]; then
+ 	echo '#ifdef IN_GCC' >> ${output}T
+ 	for file in "$@"; do
+-	    if test x"$file" = x"defaults.h"; then
++	    if test x"$file" = x"./defaults.h" -o x"$file" = x"defaults.h"; then
+ 		postpone_defaults_h="yes"
+ 	    else
+ 		echo "# include \"$file\"" >> ${output}T
+@@ -106,7 +106,7 @@ esac
+ 
+ # If we postponed including defaults.h, add the #include now.
+ if test x"$postpone_defaults_h" = x"yes"; then
+-    echo "# include \"defaults.h\"" >> ${output}T
++    echo "# include \"./defaults.h\"" >> ${output}T
+ fi
+ 
+ # Add multiple inclusion protection guard, part two.
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0009-fortran-cross-compile-hack.patch b/meta/recipes-devtools/gcc/gcc-9.1/0009-fortran-cross-compile-hack.patch
new file mode 100644
index 0000000000..7959714636
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0009-fortran-cross-compile-hack.patch
@@ -0,0 +1,46 @@
+From eda94df7d2389b6c36428e5687d5f0722d3375c3 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:20:01 +0400
+Subject: [PATCH 09/37] fortran cross-compile hack.
+
+* Fortran would have searched for arm-angstrom-gnueabi-gfortran but would have used
+used gfortan. For gcc_4.2.2.bb we want to use the gfortran compiler from our cross
+directory.
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [embedded specific]
+---
+ libgfortran/configure    | 2 +-
+ libgfortran/configure.ac | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/libgfortran/configure b/libgfortran/configure
+index 487d8c090e2..a02b49293ac 100755
+--- a/libgfortran/configure
++++ b/libgfortran/configure
+@@ -13056,7 +13056,7 @@ esac
+ 
+ # We need gfortran to compile parts of the library
+ #AC_PROG_FC(gfortran)
+-FC="$GFORTRAN"
++#FC="$GFORTRAN"
+ ac_ext=${ac_fc_srcext-f}
+ ac_compile='$FC -c $FCFLAGS $ac_fcflags_srcext conftest.$ac_ext >&5'
+ ac_link='$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $ac_fcflags_srcext conftest.$ac_ext $LIBS >&5'
+diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac
+index c06db7b1a78..5b4b1b7f1f2 100644
+--- a/libgfortran/configure.ac
++++ b/libgfortran/configure.ac
+@@ -250,7 +250,7 @@ AC_SUBST(enable_static)
+ 
+ # We need gfortran to compile parts of the library
+ #AC_PROG_FC(gfortran)
+-FC="$GFORTRAN"
++#FC="$GFORTRAN"
+ AC_PROG_FC(gfortran)
+ 
+ # extra LD Flags which are required for targets
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0010-cpp-honor-sysroot.patch b/meta/recipes-devtools/gcc/gcc-9.1/0010-cpp-honor-sysroot.patch
new file mode 100644
index 0000000000..b680e6fc38
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0010-cpp-honor-sysroot.patch
@@ -0,0 +1,54 @@
+From c2ec131f19d656fd916c45f51186633c789db6e9 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:22:00 +0400
+Subject: [PATCH 10/37] cpp: honor sysroot.
+
+Currently, if the gcc toolchain is relocated and installed from sstate, then you try and compile
+preprocessed source (.i or .ii files), the compiler will try and access the builtin sysroot location
+rather than the --sysroot option specified on the commandline. If access to that directory is
+permission denied (unreadable), gcc will error.
+
+This happens when ccache is in use due to the fact it uses preprocessed source files.
+
+The fix below adds %I to the cpp-output spec macro so the default substitutions for -iprefix,
+-isystem, -isysroot happen and the correct sysroot is used.
+
+[YOCTO #2074]
+
+RP 2012/04/13
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/cp/lang-specs.h | 2 +-
+ gcc/gcc.c           | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/cp/lang-specs.h b/gcc/cp/lang-specs.h
+index c6e42eda283..e1ddf066467 100644
+--- a/gcc/cp/lang-specs.h
++++ b/gcc/cp/lang-specs.h
+@@ -66,5 +66,5 @@ along with GCC; see the file COPYING3.  If not see
+   {".ii", "@c++-cpp-output", 0, 0, 0},
+   {"@c++-cpp-output",
+       "%{!E:%{!M:%{!MM:"
+-      "  cc1plus -fpreprocessed %i %(cc1_options) %2"
++      "  cc1plus -fpreprocessed %i %I %(cc1_options) %2"
+       "  %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index 30845e5b125..cef26c454d7 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -1349,7 +1349,7 @@ static const struct compiler default_compilers[] =
+ 					   %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
+   {".i", "@cpp-output", 0, 0, 0},
+   {"@cpp-output",
+-   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
++   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %I %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {".s", "@assembler", 0, 0, 0},
+   {"@assembler",
+    "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0011-MIPS64-Default-to-N64-ABI.patch b/meta/recipes-devtools/gcc/gcc-9.1/0011-MIPS64-Default-to-N64-ABI.patch
new file mode 100644
index 0000000000..d59a31be10
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0011-MIPS64-Default-to-N64-ABI.patch
@@ -0,0 +1,57 @@
+From 52b915732de89d8676868641af462df81211bb39 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:23:08 +0400
+Subject: [PATCH 11/37] MIPS64: Default to N64 ABI
+
+MIPS64 defaults to n32 ABI, this patch makes it
+so that it defaults to N64 ABI
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [OE config specific]
+---
+ gcc/config.gcc | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/gcc/config.gcc b/gcc/config.gcc
+index a189cb19f63..293ed8d585d 100644
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2267,29 +2267,29 @@ mips*-*-linux*)				# Linux MIPS, either endian.
+ 			default_mips_arch=mips32
+ 			;;
+ 		mips64el-st-linux-gnu)
+-			default_mips_abi=n32
++			default_mips_abi=64
+ 			tm_file="${tm_file} mips/st.h"
+ 			tmake_file="${tmake_file} mips/t-st"
+ 			enable_mips_multilibs="yes"
+ 			;;
+ 		mips64octeon*-*-linux*)
+-			default_mips_abi=n32
++			default_mips_abi=64
+ 			tm_defines="${tm_defines} MIPS_CPU_STRING_DEFAULT=\\\"octeon\\\""
+ 			target_cpu_default=MASK_SOFT_FLOAT_ABI
+ 			enable_mips_multilibs="yes"
+ 			;;
+ 		mipsisa64r6*-*-linux*)
+-			default_mips_abi=n32
++			default_mips_abi=64
+ 			default_mips_arch=mips64r6
+ 			enable_mips_multilibs="yes"
+ 			;;
+ 		mipsisa64r2*-*-linux*)
+-			default_mips_abi=n32
++			default_mips_abi=64
+ 			default_mips_arch=mips64r2
+ 			enable_mips_multilibs="yes"
+ 			;;
+ 		mips64*-*-linux* | mipsisa64*-*-linux*)
+-			default_mips_abi=n32
++			default_mips_abi=64
+ 			enable_mips_multilibs="yes"
+ 			;;
+ 	esac
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0012-Define-GLIBC_DYNAMIC_LINKER-and-UCLIBC_DYNAMIC_LINKE.patch b/meta/recipes-devtools/gcc/gcc-9.1/0012-Define-GLIBC_DYNAMIC_LINKER-and-UCLIBC_DYNAMIC_LINKE.patch
new file mode 100644
index 0000000000..f23a314c13
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0012-Define-GLIBC_DYNAMIC_LINKER-and-UCLIBC_DYNAMIC_LINKE.patch
@@ -0,0 +1,232 @@
+From 492f008dce784749e39e1c396aeea6fa1d977374 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:24:50 +0400
+Subject: [PATCH 12/37] Define GLIBC_DYNAMIC_LINKER and UCLIBC_DYNAMIC_LINKER
+ relative to SYSTEMLIBS_DIR
+
+This patch defines GLIBC_DYNAMIC_LINKER and UCLIBC_DYNAMIC_LINKER
+relative to SYSTEMLIBS_DIR which can be set in generated headers
+This breaks the assumption of hardcoded multilib in gcc
+Change is only for the supported architectures in OE including
+SH, sparc, alpha for possible future support (if any)
+
+Removes the do_headerfix task in metadata
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [OE configuration]
+---
+ gcc/config/alpha/linux-elf.h |  4 ++--
+ gcc/config/arm/linux-eabi.h  |  4 ++--
+ gcc/config/arm/linux-elf.h   |  2 +-
+ gcc/config/i386/linux.h      |  2 +-
+ gcc/config/i386/linux64.h    |  6 +++---
+ gcc/config/linux.h           |  8 ++++----
+ gcc/config/mips/linux.h      | 12 ++++++------
+ gcc/config/rs6000/linux64.h  | 15 +++++----------
+ gcc/config/sh/linux.h        |  2 +-
+ gcc/config/sparc/linux.h     |  2 +-
+ gcc/config/sparc/linux64.h   |  4 ++--
+ 11 files changed, 28 insertions(+), 33 deletions(-)
+
+diff --git a/gcc/config/alpha/linux-elf.h b/gcc/config/alpha/linux-elf.h
+index 824861befec..6afacce3292 100644
+--- a/gcc/config/alpha/linux-elf.h
++++ b/gcc/config/alpha/linux-elf.h
+@@ -23,8 +23,8 @@ along with GCC; see the file COPYING3.  If not see
+ #define EXTRA_SPECS \
+ { "elf_dynamic_linker", ELF_DYNAMIC_LINKER },
+ 
+-#define GLIBC_DYNAMIC_LINKER	"/lib/ld-linux.so.2"
+-#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
++#define GLIBC_DYNAMIC_LINKER	SYSTEMLIBS_DIR "ld-linux.so.2"
++#define UCLIBC_DYNAMIC_LINKER  SYSTEMLIBS_DIR "ld-uClibc.so.0"
+ #if DEFAULT_LIBC == LIBC_UCLIBC
+ #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
+ #elif DEFAULT_LIBC == LIBC_GLIBC
+diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h
+index 66ec0ea3980..e4ade2e2ab0 100644
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -65,8 +65,8 @@
+    GLIBC_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI.  */
+ 
+ #undef  GLIBC_DYNAMIC_LINKER
+-#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-linux.so.3"
+-#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-linux-armhf.so.3"
++#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT SYSTEMLIBS_DIR "ld-linux.so.3"
++#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT SYSTEMLIBS_DIR "ld-linux-armhf.so.3"
+ #define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT
+ 
+ #define GLIBC_DYNAMIC_LINKER \
+diff --git a/gcc/config/arm/linux-elf.h b/gcc/config/arm/linux-elf.h
+index 9a360defd21..98f6e960b64 100644
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -60,7 +60,7 @@
+ 
+ #define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
+ 
+-#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define GLIBC_DYNAMIC_LINKER SYSTEMLIBS_DIR "ld-linux.so.2"
+ 
+ #define LINUX_TARGET_LINK_SPEC  "%{h*} \
+    %{static:-Bstatic} \
+diff --git a/gcc/config/i386/linux.h b/gcc/config/i386/linux.h
+index 9a6e2d99896..31efbb73016 100644
+--- a/gcc/config/i386/linux.h
++++ b/gcc/config/i386/linux.h
+@@ -20,7 +20,7 @@ along with GCC; see the file COPYING3.  If not see
+ <http://www.gnu.org/licenses/>.  */
+ 
+ #define GNU_USER_LINK_EMULATION "elf_i386"
+-#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define GLIBC_DYNAMIC_LINKER SYSTEMLIBS_DIR "ld-linux.so.2"
+ 
+ #undef MUSL_DYNAMIC_LINKER
+ #define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
+diff --git a/gcc/config/i386/linux64.h b/gcc/config/i386/linux64.h
+index c08221c4210..dbb474d792b 100644
+--- a/gcc/config/i386/linux64.h
++++ b/gcc/config/i386/linux64.h
+@@ -27,9 +27,9 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define GNU_USER_LINK_EMULATION64 "elf_x86_64"
+ #define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64"
+ 
+-#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+-#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
+-#define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
++#define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-linux.so.2"
++#define GLIBC_DYNAMIC_LINKER64 SYSTEMLIBS_DIR "ld-linux-x86-64.so.2"
++#define GLIBC_DYNAMIC_LINKERX32 SYSTEMLIBS_DIR "ld-linux-x32.so.2"
+ 
+ #undef MUSL_DYNAMIC_LINKER32
+ #define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
+diff --git a/gcc/config/linux.h b/gcc/config/linux.h
+index c3c4a219e67..4b05d8e93d1 100644
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -94,10 +94,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+    GLIBC_DYNAMIC_LINKER must be defined for each target using them, or
+    GLIBC_DYNAMIC_LINKER32 and GLIBC_DYNAMIC_LINKER64 for targets
+    supporting both 32-bit and 64-bit compilation.  */
+-#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+-#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
+-#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
+-#define UCLIBC_DYNAMIC_LINKERX32 "/lib/ldx32-uClibc.so.0"
++#define UCLIBC_DYNAMIC_LINKER SYSTEMLIBS_DIR "ld-uClibc.so.0"
++#define UCLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-uClibc.so.0"
++#define UCLIBC_DYNAMIC_LINKER64 SYSTEMLIBS_DIR "ld64-uClibc.so.0"
++#define UCLIBC_DYNAMIC_LINKERX32 SYSTEMLIBS_DIR "ldx32-uClibc.so.0"
+ #define BIONIC_DYNAMIC_LINKER "/system/bin/linker"
+ #define BIONIC_DYNAMIC_LINKER32 "/system/bin/linker"
+ #define BIONIC_DYNAMIC_LINKER64 "/system/bin/linker64"
+diff --git a/gcc/config/mips/linux.h b/gcc/config/mips/linux.h
+index 6f79ac9c01a..25de96f9561 100644
+--- a/gcc/config/mips/linux.h
++++ b/gcc/config/mips/linux.h
+@@ -22,20 +22,20 @@ along with GCC; see the file COPYING3.  If not see
+ #define GNU_USER_LINK_EMULATIONN32 "elf32%{EB:b}%{EL:l}tsmipn32"
+ 
+ #define GLIBC_DYNAMIC_LINKER32 \
+-  "%{mnan=2008:/lib/ld-linux-mipsn8.so.1;:/lib/ld.so.1}"
++  "%{mnan=2008:" SYSTEMLIBS_DIR "ld-linux-mipsn8.so.1;:" SYSTEMLIBS_DIR "ld.so.1}"
+ #define GLIBC_DYNAMIC_LINKER64 \
+-  "%{mnan=2008:/lib64/ld-linux-mipsn8.so.1;:/lib64/ld.so.1}"
++  "%{mnan=2008:" SYSTEMLIBS_DIR "ld-linux-mipsn8.so.1;:" SYSTEMLIBS_DIR "ld.so.1}"
+ #define GLIBC_DYNAMIC_LINKERN32 \
+-  "%{mnan=2008:/lib32/ld-linux-mipsn8.so.1;:/lib32/ld.so.1}"
++  "%{mnan=2008:" SYSTEMLIBS_DIR "ld-linux-mipsn8.so.1;:" SYSTEMLIBS_DIR "ld.so.1}"
+ 
+ #undef UCLIBC_DYNAMIC_LINKER32
+ #define UCLIBC_DYNAMIC_LINKER32 \
+-  "%{mnan=2008:/lib/ld-uClibc-mipsn8.so.0;:/lib/ld-uClibc.so.0}"
++  "%{mnan=2008:" SYSTEMLIBS_DIR "ld-uClibc-mipsn8.so.0;:" SYSTEMLIBS_DIR "ld-uClibc.so.0}"
+ #undef UCLIBC_DYNAMIC_LINKER64
+ #define UCLIBC_DYNAMIC_LINKER64 \
+-  "%{mnan=2008:/lib/ld64-uClibc-mipsn8.so.0;:/lib/ld64-uClibc.so.0}"
++  "%{mnan=2008:" SYSTEMLIBS_DIR "ld64-uClibc-mipsn8.so.0;:" SYSTEMLIBS_DIR "ld64-uClibc.so.0}"
+ #define UCLIBC_DYNAMIC_LINKERN32 \
+-  "%{mnan=2008:/lib32/ld-uClibc-mipsn8.so.0;:/lib32/ld-uClibc.so.0}"
++  "%{mnan=2008:" SYSTEMLIBS_DIR "ld-uClibc-mipsn8.so.0;:" SYSTEMLIBS_DIR "ld-uClibc.so.0}"
+ 
+ #undef MUSL_DYNAMIC_LINKER32
+ #define MUSL_DYNAMIC_LINKER32 \
+diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h
+index bcc540b5ff2..982ca274621 100644
+--- a/gcc/config/rs6000/linux64.h
++++ b/gcc/config/rs6000/linux64.h
+@@ -428,24 +428,19 @@ extern int dot_symbols;
+ #undef	LINK_OS_DEFAULT_SPEC
+ #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
+ 
+-#define GLIBC_DYNAMIC_LINKER32 "%(dynamic_linker_prefix)/lib/ld.so.1"
+-
++#define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld.so.1"
+ #ifdef LINUX64_DEFAULT_ABI_ELFv2
+-#define GLIBC_DYNAMIC_LINKER64 \
+-"%{mabi=elfv1:%(dynamic_linker_prefix)/lib64/ld64.so.1;" \
+-":%(dynamic_linker_prefix)/lib64/ld64.so.2}"
++#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:" SYSTEMLIBS_DIR "ld64.so.1;:" SYSTEMLIBS_DIR "ld64.so.2}"
+ #else
+-#define GLIBC_DYNAMIC_LINKER64 \
+-"%{mabi=elfv2:%(dynamic_linker_prefix)/lib64/ld64.so.2;" \
+-":%(dynamic_linker_prefix)/lib64/ld64.so.1}"
++#define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:" SYSTEMLIBS_DIR "ld64.so.2;:" SYSTEMLIBS_DIR "ld64.so.1}"
+ #endif
+ 
+ #undef MUSL_DYNAMIC_LINKER32
+ #define MUSL_DYNAMIC_LINKER32 \
+-  "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
++  SYSTEMLIBS_DIR "ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
+ #undef MUSL_DYNAMIC_LINKER64
+ #define MUSL_DYNAMIC_LINKER64 \
+-  "/lib/ld-musl-powerpc64" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
++  SYSTEMLIBS_DIR "ld-musl-powerpc64" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
+ 
+ #undef  DEFAULT_ASM_ENDIAN
+ #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
+diff --git a/gcc/config/sh/linux.h b/gcc/config/sh/linux.h
+index c9897b7aca5..82f275319cc 100644
+--- a/gcc/config/sh/linux.h
++++ b/gcc/config/sh/linux.h
+@@ -64,7 +64,7 @@ along with GCC; see the file COPYING3.  If not see
+   "/lib/ld-musl-sh" MUSL_DYNAMIC_LINKER_E MUSL_DYNAMIC_LINKER_FP \
+   "%{mfdpic:-fdpic}.so.1"
+ 
+-#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define GLIBC_DYNAMIC_LINKER SYSTEMLIBS_DIR "ld-linux.so.2"
+ 
+ #undef SUBTARGET_LINK_EMUL_SUFFIX
+ #define SUBTARGET_LINK_EMUL_SUFFIX "%{mfdpic:_fd;:_linux}"
+diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h
+index 2db9ea2172e..1979cfff5d3 100644
+--- a/gcc/config/sparc/linux.h
++++ b/gcc/config/sparc/linux.h
+@@ -83,7 +83,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
+    When the -shared link option is used a final link is not being
+    done.  */
+ 
+-#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define GLIBC_DYNAMIC_LINKER SYSTEMLIBS_DIR "ld-linux.so.2"
+ 
+ #undef  LINK_SPEC
+ #define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
+diff --git a/gcc/config/sparc/linux64.h b/gcc/config/sparc/linux64.h
+index 21e13001951..d39c38a531f 100644
+--- a/gcc/config/sparc/linux64.h
++++ b/gcc/config/sparc/linux64.h
+@@ -84,8 +84,8 @@ along with GCC; see the file COPYING3.  If not see
+    When the -shared link option is used a final link is not being
+    done.  */
+ 
+-#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+-#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
++#define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-linux.so.2"
++#define GLIBC_DYNAMIC_LINKER64 SYSTEMLIBS_DIR "ld-linux.so.2"
+ 
+ #ifdef SPARC_BI_ARCH
+ 
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0013-gcc-Fix-argument-list-too-long-error.patch b/meta/recipes-devtools/gcc/gcc-9.1/0013-gcc-Fix-argument-list-too-long-error.patch
new file mode 100644
index 0000000000..f853ff90d2
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0013-gcc-Fix-argument-list-too-long-error.patch
@@ -0,0 +1,40 @@
+From d8a24eca2d7a222d4910c8a508d75d0d1418e201 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:26:37 +0400
+Subject: [PATCH 13/37] gcc: Fix argument list too long error.
+
+There would be an "Argument list too long" error when the
+build directory is longer than 200, this is caused by:
+
+headers=`echo $(PLUGIN_HEADERS) | tr ' ' '\012' | sort -u`
+
+The PLUGIN_HEADERS is too long before sort, so the "echo" can't handle
+it, use the $(sort list) of GNU make which can handle the too long list
+would fix the problem, the header would be short enough after sorted.
+The "tr ' ' '\012'" was used for translating the space to "\n", the
+$(sort list) doesn't need this.
+
+Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/Makefile.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/Makefile.in b/gcc/Makefile.in
+index 3ccff1614bb..88b1aec732b 100644
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -3538,7 +3538,7 @@ install-plugin: installdirs lang.install-plugin s-header-vars install-gengtype
+ # We keep the directory structure for files in config or c-family and .def
+ # files. All other files are flattened to a single directory.
+ 	$(mkinstalldirs) $(DESTDIR)$(plugin_includedir)
+-	headers=`echo $(PLUGIN_HEADERS) $$(cd $(srcdir); echo *.h *.def) | tr ' ' '\012' | sort -u`; \
++	headers="$(sort $(PLUGIN_HEADERS) $$(cd $(srcdir); echo *.h *.def))"; \
+ 	srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`; \
+ 	for file in $$headers; do \
+ 	  if [ -f $$file ] ; then \
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0014-Disable-sdt.patch b/meta/recipes-devtools/gcc/gcc-9.1/0014-Disable-sdt.patch
new file mode 100644
index 0000000000..945cf8f8af
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0014-Disable-sdt.patch
@@ -0,0 +1,113 @@
+From d5e52580314ef6056ca701fcc030c7c884cb1d7f Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:28:10 +0400
+Subject: [PATCH 14/37] Disable sdt.
+
+We don't list dtrace in DEPENDS so we shouldn't be depending on this header.
+It may or may not exist from preivous builds though. To be determinstic, disable
+sdt.h usage always. This avoids build failures if the header is removed after configure
+but before libgcc is compiled for example.
+
+RP 2012/8/7
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Disable sdt for libstdc++-v3.
+
+Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
+
+Upstream-Status: Inappropriate [hack]
+---
+ gcc/configure             | 12 ++++++------
+ gcc/configure.ac          | 18 +++++++++---------
+ libstdc++-v3/configure    |  6 +++---
+ libstdc++-v3/configure.ac |  2 +-
+ 4 files changed, 19 insertions(+), 19 deletions(-)
+
+diff --git a/gcc/configure b/gcc/configure
+index 7acc7e487b0..6a87ab693ea 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -29292,12 +29292,12 @@ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking sys/sdt.h in the target C library" >&5
+ $as_echo_n "checking sys/sdt.h in the target C library... " >&6; }
+ have_sys_sdt_h=no
+-if test -f $target_header_dir/sys/sdt.h; then
+-  have_sys_sdt_h=yes
+-
+-$as_echo "#define HAVE_SYS_SDT_H 1" >>confdefs.h
+-
+-fi
++#if test -f $target_header_dir/sys/sdt.h; then
++#  have_sys_sdt_h=yes
++#
++#$as_echo "#define HAVE_SYS_SDT_H 1" >>confdefs.h
++#
++#fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_sys_sdt_h" >&5
+ $as_echo "$have_sys_sdt_h" >&6; }
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index f5d5e5c16a8..a50765171be 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -5985,15 +5985,15 @@ fi
+ AC_SUBST([enable_default_ssp])
+ 
+ # Test for <sys/sdt.h> on the target.
+-GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H])
+-AC_MSG_CHECKING(sys/sdt.h in the target C library)
+-have_sys_sdt_h=no
+-if test -f $target_header_dir/sys/sdt.h; then
+-  have_sys_sdt_h=yes
+-  AC_DEFINE(HAVE_SYS_SDT_H, 1,
+-            [Define if your target C library provides sys/sdt.h])
+-fi
+-AC_MSG_RESULT($have_sys_sdt_h)
++#GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H])
++#AC_MSG_CHECKING(sys/sdt.h in the target C library)
++#have_sys_sdt_h=no
++#if test -f $target_header_dir/sys/sdt.h; then
++#  have_sys_sdt_h=yes
++#  AC_DEFINE(HAVE_SYS_SDT_H, 1,
++#            [Define if your target C library provides sys/sdt.h])
++#fi
++#AC_MSG_RESULT($have_sys_sdt_h)
+ 
+ # Check if TFmode long double should be used by default or not.
+ # Some glibc targets used DFmode long double, but with glibc 2.4
+diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
+index 15848e364ab..8d3da1cc526 100755
+--- a/libstdc++-v3/configure
++++ b/libstdc++-v3/configure
+@@ -22084,11 +22084,11 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ ac_compiler_gnu=$ac_cv_c_compiler_gnu
+ 
+-  if test $glibcxx_cv_sys_sdt_h = yes; then
++#  if test $glibcxx_cv_sys_sdt_h = yes; then
+ 
+-$as_echo "#define HAVE_SYS_SDT_H 1" >>confdefs.h
++#$as_echo "#define HAVE_SYS_SDT_H 1" >>confdefs.h
+ 
+-  fi
++#  fi
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_sys_sdt_h" >&5
+ $as_echo "$glibcxx_cv_sys_sdt_h" >&6; }
+ 
+diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
+index ad5b4117cfd..2341645ba6f 100644
+--- a/libstdc++-v3/configure.ac
++++ b/libstdc++-v3/configure.ac
+@@ -230,7 +230,7 @@ GLIBCXX_CHECK_SC_NPROCESSORS_ONLN
+ GLIBCXX_CHECK_SC_NPROC_ONLN
+ GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP
+ GLIBCXX_CHECK_SYSCTL_HW_NCPU
+-GLIBCXX_CHECK_SDT_H
++#GLIBCXX_CHECK_SDT_H
+ 
+ # Check for available headers.
+ AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0015-libtool.patch b/meta/recipes-devtools/gcc/gcc-9.1/0015-libtool.patch
new file mode 100644
index 0000000000..764460b89e
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0015-libtool.patch
@@ -0,0 +1,42 @@
+From d7c605d92094c75dc2717d9dd830e525b2c8b0ff Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:29:11 +0400
+Subject: [PATCH 15/37] libtool
+
+libstdc++ from gcc-runtime gets created with -rpath=/usr/lib/../lib for qemux86-64
+when running on am x86_64 build host.
+
+This patch stops this speading to libdir in the libstdc++.la file within libtool.
+Arguably, it shouldn't be passing this into libtool in the first place but
+for now this resolves the nastiest problems this causes.
+
+func_normal_abspath would resolve an empty path to `pwd` so we need
+to filter the zero case.
+
+RP 2012/8/24
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ ltmain.sh | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/ltmain.sh b/ltmain.sh
+index 79f9ba89af5..8e222f7c16b 100644
+--- a/ltmain.sh
++++ b/ltmain.sh
+@@ -6359,6 +6359,10 @@ func_mode_link ()
+ 	func_warning "ignoring multiple \`-rpath's for a libtool library"
+ 
+       install_libdir="$1"
++      if test -n "$install_libdir"; then
++	func_normal_abspath "$install_libdir"
++	install_libdir=$func_normal_abspath_result
++      fi
+ 
+       oldlibs=
+       if test -z "$rpath"; then
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0016-gcc-armv4-pass-fix-v4bx-to-linker-to-support-EABI.patch b/meta/recipes-devtools/gcc/gcc-9.1/0016-gcc-armv4-pass-fix-v4bx-to-linker-to-support-EABI.patch
new file mode 100644
index 0000000000..398074b5cc
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0016-gcc-armv4-pass-fix-v4bx-to-linker-to-support-EABI.patch
@@ -0,0 +1,43 @@
+From c3addf8bc41190d46d98eb7690ff4583eebd5943 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:30:32 +0400
+Subject: [PATCH 16/37] gcc: armv4: pass fix-v4bx to linker to support EABI.
+
+The LINK_SPEC for linux gets overwritten by linux-eabi.h which
+means the value of TARGET_FIX_V4BX_SPEC gets lost and as a result
+the option is not passed to linker when chosing march=armv4
+This patch redefines this in linux-eabi.h and reinserts it
+for eabi defaulting toolchains.
+
+We might want to send it upstream.
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/config/arm/linux-eabi.h | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h
+index e4ade2e2ab0..108863f69d2 100644
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -91,10 +91,14 @@
+ #define MUSL_DYNAMIC_LINKER \
+   "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
+ 
++/* For armv4 we pass --fix-v4bx to linker to support EABI */
++#undef TARGET_FIX_V4BX_SPEC
++#define TARGET_FIX_V4BX_SPEC "%{mcpu=arm8|mcpu=arm810|mcpu=strongarm*|march=armv4: --fix-v4bx}"
++
+ /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
+    use the GNU/Linux version, not the generic BPABI version.  */
+ #undef  LINK_SPEC
+-#define LINK_SPEC EABI_LINK_SPEC					\
++#define LINK_SPEC TARGET_FIX_V4BX_SPEC EABI_LINK_SPEC			\
+   LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC,				\
+ 		       LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
+ 
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0017-Use-the-multilib-config-files-from-B-instead-of-usin.patch b/meta/recipes-devtools/gcc/gcc-9.1/0017-Use-the-multilib-config-files-from-B-instead-of-usin.patch
new file mode 100644
index 0000000000..7d5c94a646
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0017-Use-the-multilib-config-files-from-B-instead-of-usin.patch
@@ -0,0 +1,102 @@
+From e1071f4e749586fcb3edcacf43d4dd44081d16ec Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:33:04 +0400
+Subject: [PATCH 17/37] Use the multilib config files from ${B} instead of
+ using the ones from ${S}
+
+Use the multilib config files from ${B} instead of using the ones from ${S}
+so that the source can be shared between gcc-cross-initial,
+gcc-cross-intermediate, gcc-cross, gcc-runtime, and also the sdk build.
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Constantin Musca <constantinx.musca@intel.com>
+
+Upstream-Status: Inappropriate [configuration]
+---
+ gcc/configure    | 22 ++++++++++++++++++----
+ gcc/configure.ac | 22 ++++++++++++++++++----
+ 2 files changed, 36 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/configure b/gcc/configure
+index 6a87ab693ea..2e822caf66d 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -12321,10 +12321,20 @@ done
+ tmake_file_=
+ for f in ${tmake_file}
+ do
+-	if test -f ${srcdir}/config/$f
+-	then
+-		tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
+-	fi
++  case $f in
++    */t-linux64 )
++       if test -f ./config/$f
++       then
++         tmake_file_="${tmake_file_} ./config/$f"
++       fi
++       ;;
++    * )
++       if test -f ${srcdir}/config/$f
++       then
++         tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
++       fi
++       ;;
++  esac
+ done
+ tmake_file="${tmake_file_}"
+ 
+@@ -12335,6 +12345,10 @@ tm_file_list="options.h"
+ tm_include_list="options.h insn-constants.h"
+ for f in $tm_file; do
+   case $f in
++    */linux64.h )
++       tm_file_list="${tm_file_list} ./config/$f"
++       tm_include_list="${tm_include_list} ./config/$f"
++       ;;
+     ./* )
+        f=`echo $f | sed 's/^..//'`
+        tm_file_list="${tm_file_list} $f"
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index a50765171be..70e7bac78c4 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -1948,10 +1948,20 @@ done
+ tmake_file_=
+ for f in ${tmake_file}
+ do
+-	if test -f ${srcdir}/config/$f
+-	then
+-		tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
+-	fi
++  case $f in
++    */t-linux64 )
++       if test -f ./config/$f
++       then
++         tmake_file_="${tmake_file_} ./config/$f"
++       fi
++       ;;
++    * )
++       if test -f ${srcdir}/config/$f
++       then
++         tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
++       fi
++       ;;
++  esac
+ done
+ tmake_file="${tmake_file_}"
+ 
+@@ -1962,6 +1972,10 @@ tm_file_list="options.h"
+ tm_include_list="options.h insn-constants.h"
+ for f in $tm_file; do
+   case $f in
++    */linux64.h )
++       tm_file_list="${tm_file_list} ./config/$f"
++       tm_include_list="${tm_include_list} ./config/$f"
++       ;;
+     ./* )
+        f=`echo $f | sed 's/^..//'`
+        tm_file_list="${tm_file_list} $f"
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0018-Avoid-using-libdir-from-.la-which-usually-points-to-.patch b/meta/recipes-devtools/gcc/gcc-9.1/0018-Avoid-using-libdir-from-.la-which-usually-points-to-.patch
new file mode 100644
index 0000000000..596337bc1f
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0018-Avoid-using-libdir-from-.la-which-usually-points-to-.patch
@@ -0,0 +1,31 @@
+From 1ffbbb39c9848aa7a04da18fb79b1f0bd7731e00 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 20 Feb 2015 09:39:38 +0000
+Subject: [PATCH 18/37] Avoid using libdir from .la which usually points to a
+ host path
+
+Upstream-Status: Inappropriate [embedded specific]
+
+Signed-off-by: Jonathan Liu <net147@gmail.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ ltmain.sh | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/ltmain.sh b/ltmain.sh
+index 8e222f7c16b..0a93b4e5c3b 100644
+--- a/ltmain.sh
++++ b/ltmain.sh
+@@ -5628,6 +5628,9 @@ func_mode_link ()
+ 	    absdir="$abs_ladir"
+ 	    libdir="$abs_ladir"
+ 	  else
++	    # Instead of using libdir from .la which usually points to a host path,
++	    # use the path the .la is contained in.
++	    libdir="$abs_ladir"
+ 	    dir="$libdir"
+ 	    absdir="$libdir"
+ 	  fi
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0019-export-CPP.patch b/meta/recipes-devtools/gcc/gcc-9.1/0019-export-CPP.patch
new file mode 100644
index 0000000000..50d17dd962
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0019-export-CPP.patch
@@ -0,0 +1,53 @@
+From 5ece023b88eaba16d8744f8f2ff72345ec3b7f92 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 20 Feb 2015 09:40:59 +0000
+Subject: [PATCH 19/37] export CPP
+
+The OE environment sets and exports CPP as being the target gcc. When
+building gcc-cross-canadian for a mingw targetted sdk, the following can be found
+in build.x86_64-pokysdk-mingw32.i586-poky-linux/build-x86_64-linux/libiberty/config.log:
+
+configure:3641: checking for _FILE_OFFSET_BITS value needed for large files
+configure:3666: gcc  -c -isystem/media/build1/poky/build/tmp/sysroots/x86_64-linux/usr/include -O2 -pipe  conftest.c >&5
+configure:3666: $? = 0
+configure:3698: result: no
+configure:3786: checking how to run the C preprocessor
+configure:3856: result: x86_64-pokysdk-mingw32-gcc -E --sysroot=/media/build1/poky/build/tmp/sysroots/x86_64-nativesdk-mingw32-pokysdk-mingw32
+configure:3876: x86_64-pokysdk-mingw32-gcc -E --sysroot=/media/build1/poky/build/tmp/sysroots/x86_64-nativesdk-mingw32-pokysdk-mingw32 conftest.c
+configure:3876: $? = 0
+
+Note this is a *build* target (in build-x86_64-linux) so it should be
+using the host "gcc", not x86_64-pokysdk-mingw32-gcc. Since the mingw32
+headers are very different, using the wrong cpp is a real problem. It is leaking
+into configure through the CPP variable. Ultimately this leads to build
+failures related to not being able to include a process.h file for pem-unix.c.
+
+The fix is to ensure we export a sane CPP value into the build
+environment when using build targets. We could define a CPP_FOR_BUILD value which may be
+the version which needs to be upstreamed but for now, this fix is good enough to
+avoid the problem.
+
+RP 22/08/2013
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ Makefile.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/Makefile.in b/Makefile.in
+index 28539a45372..b21e0791f55 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -149,6 +149,7 @@ BUILD_EXPORTS = \
+ 	AR="$(AR_FOR_BUILD)"; export AR; \
+ 	AS="$(AS_FOR_BUILD)"; export AS; \
+ 	CC="$(CC_FOR_BUILD)"; export CC; \
++	CPP="$(CC_FOR_BUILD) -E"; export CPP; \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)"; export CFLAGS; \
+ 	CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
+ 	CXX="$(CXX_FOR_BUILD)"; export CXX; \
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0020-Ensure-target-gcc-headers-can-be-included.patch b/meta/recipes-devtools/gcc/gcc-9.1/0020-Ensure-target-gcc-headers-can-be-included.patch
new file mode 100644
index 0000000000..f37c6f39aa
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0020-Ensure-target-gcc-headers-can-be-included.patch
@@ -0,0 +1,98 @@
+From 89f7a8e5c55b31bff011cd7466d78cd84d1eb307 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 20 Feb 2015 10:25:11 +0000
+Subject: [PATCH 20/37] Ensure target gcc headers can be included
+
+There are a few headers installed as part of the OpenEmbedded
+gcc-runtime target (omp.h, ssp/*.h). Being installed from a recipe
+built for the target architecture, these are within the target
+sysroot and not cross/nativesdk; thus they weren't able to be
+found by gcc with the existing search paths. Add support for
+picking up these headers under the sysroot supplied on the gcc
+command line in order to resolve this.
+
+Upstream-Status: Pending
+
+Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/Makefile.in  | 2 ++
+ gcc/cppdefault.c | 4 ++++
+ gcc/defaults.h   | 9 +++++++++
+ gcc/gcc.c        | 7 -------
+ 4 files changed, 15 insertions(+), 7 deletions(-)
+
+diff --git a/gcc/Makefile.in b/gcc/Makefile.in
+index 88b1aec732b..eb1dc304de2 100644
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -618,6 +618,7 @@ libexecdir = @libexecdir@
+ 
+ # Directory in which the compiler finds libraries etc.
+ libsubdir = $(libdir)/gcc/$(real_target_noncanonical)/$(version)$(accel_dir_suffix)
++libsubdir_target = gcc/$(target_noncanonical)/$(version)
+ # Directory in which the compiler finds executables
+ libexecsubdir = $(libexecdir)/gcc/$(real_target_noncanonical)/$(version)$(accel_dir_suffix)
+ # Directory in which all plugin resources are installed
+@@ -2867,6 +2868,7 @@ CFLAGS-intl.o += -DLOCALEDIR=\"$(localedir)\"
+ 
+ PREPROCESSOR_DEFINES = \
+   -DGCC_INCLUDE_DIR=\"$(libsubdir)/include\" \
++  -DGCC_INCLUDE_SUBDIR_TARGET=\"$(libsubdir_target)/include\" \
+   -DFIXED_INCLUDE_DIR=\"$(libsubdir)/include-fixed\" \
+   -DGPLUSPLUS_INCLUDE_DIR=\"$(gcc_gxx_include_dir)\" \
+   -DGPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT=$(gcc_gxx_include_dir_add_sysroot) \
+diff --git a/gcc/cppdefault.c b/gcc/cppdefault.c
+index c4796385643..980e2bd47a7 100644
+--- a/gcc/cppdefault.c
++++ b/gcc/cppdefault.c
+@@ -59,6 +59,10 @@ const struct default_include cpp_include_defaults[]
+     /* This is the dir for gcc's private headers.  */
+     { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
+ #endif
++#ifdef GCC_INCLUDE_SUBDIR_TARGET
++    /* This is the dir for gcc's private headers under the specified sysroot.  */
++    { STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET, "GCC", 0, 0, 1, 0 },
++#endif
+ #ifdef LOCAL_INCLUDE_DIR
+     /* /usr/local/include comes before the fixincluded header files.  */
+     { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },
+diff --git a/gcc/defaults.h b/gcc/defaults.h
+index b7534256119..41ca579b267 100644
+--- a/gcc/defaults.h
++++ b/gcc/defaults.h
+@@ -1459,4 +1459,13 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define DWARF_GNAT_ENCODINGS_DEFAULT DWARF_GNAT_ENCODINGS_GDB
+ #endif
+ 
++/* Default prefixes to attach to command names.  */
++
++#ifndef STANDARD_STARTFILE_PREFIX_1
++#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
++#endif
++#ifndef STANDARD_STARTFILE_PREFIX_2
++#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
++#endif
++
+ #endif  /* ! GCC_DEFAULTS_H */
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index cef26c454d7..14b1a6e8c44 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -1470,13 +1470,6 @@ static const char *gcc_libexec_prefix;
+ 
+ /* Default prefixes to attach to command names.  */
+ 
+-#ifndef STANDARD_STARTFILE_PREFIX_1
+-#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
+-#endif
+-#ifndef STANDARD_STARTFILE_PREFIX_2
+-#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
+-#endif
+-
+ #ifdef CROSS_DIRECTORY_STRUCTURE  /* Don't use these prefixes for a cross compiler.  */
+ #undef MD_EXEC_PREFIX
+ #undef MD_STARTFILE_PREFIX
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0021-gcc-4.8-won-t-build-with-disable-dependency-tracking.patch b/meta/recipes-devtools/gcc/gcc-9.1/0021-gcc-4.8-won-t-build-with-disable-dependency-tracking.patch
new file mode 100644
index 0000000000..ef985727a6
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0021-gcc-4.8-won-t-build-with-disable-dependency-tracking.patch
@@ -0,0 +1,54 @@
+From 2a1895aca3d9020d0d5ac74975221727384ef8a6 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 20 Feb 2015 11:17:19 +0000
+Subject: [PATCH 21/37] gcc 4.8+ won't build with --disable-dependency-tracking
+
+since the *.Ppo files don't get created unless --enable-dependency-tracking is true.
+
+This patch ensures we only use those compiler options when its enabled.
+
+Upstream-Status: Submitted
+
+(Problem was already reported upstream, attached this patch there
+http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55930)
+
+RP
+2012/09/22
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ libatomic/Makefile.am | 3 ++-
+ libatomic/Makefile.in | 3 ++-
+ 2 files changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/libatomic/Makefile.am b/libatomic/Makefile.am
+index c1b7c73934a..ef43d62c07a 100644
+--- a/libatomic/Makefile.am
++++ b/libatomic/Makefile.am
+@@ -101,7 +101,8 @@ PAT_S		= $(word 3,$(PAT_SPLIT))
+ IFUNC_DEF	= -DIFUNC_ALT=$(PAT_S)
+ IFUNC_OPT	= $(word $(PAT_S),$(IFUNC_OPTIONS))
+ 
+-M_DEPS		= -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_TRUE@M_DEPS		= -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_FALSE@M_DEPS		=
+ M_SIZE		= -DN=$(PAT_N)
+ M_IFUNC		= $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT))
+ M_FILE		= $(PAT_BASE)_n.c
+diff --git a/libatomic/Makefile.in b/libatomic/Makefile.in
+index 29324e3e0ac..d5cdb4259ef 100644
+--- a/libatomic/Makefile.in
++++ b/libatomic/Makefile.in
+@@ -414,7 +414,8 @@ PAT_N = $(word 2,$(PAT_SPLIT))
+ PAT_S = $(word 3,$(PAT_SPLIT))
+ IFUNC_DEF = -DIFUNC_ALT=$(PAT_S)
+ IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS))
+-M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_TRUE@M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_FALSE@M_DEPS =
+ M_SIZE = -DN=$(PAT_N)
+ M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT))
+ M_FILE = $(PAT_BASE)_n.c
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0022-Don-t-search-host-directory-during-relink-if-inst_pr.patch b/meta/recipes-devtools/gcc/gcc-9.1/0022-Don-t-search-host-directory-during-relink-if-inst_pr.patch
new file mode 100644
index 0000000000..8316c4d814
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0022-Don-t-search-host-directory-during-relink-if-inst_pr.patch
@@ -0,0 +1,38 @@
+From 4b9f8cfbfb48a1a9781b7c3a9b867732ef37b7c5 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 3 Mar 2015 08:21:19 +0000
+Subject: [PATCH 22/37] Don't search host directory during "relink" if
+ $inst_prefix is provided
+
+http://lists.gnu.org/archive/html/libtool-patches/2011-01/msg00026.html
+
+Upstream-Status: Submitted
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ ltmain.sh | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/ltmain.sh b/ltmain.sh
+index 0a93b4e5c3b..6de6ed2f9a0 100644
+--- a/ltmain.sh
++++ b/ltmain.sh
+@@ -6004,12 +6004,13 @@ func_mode_link ()
+ 	      fi
+ 	    else
+ 	      # We cannot seem to hardcode it, guess we'll fake it.
++	      # Default if $libdir is not relative to the prefix:
+ 	      add_dir="-L$libdir"
+-	      # Try looking first in the location we're being installed to.
++
+ 	      if test -n "$inst_prefix_dir"; then
+ 		case $libdir in
+ 		  [\\/]*)
+-		    add_dir="$add_dir -L$inst_prefix_dir$libdir"
++		    add_dir="-L$inst_prefix_dir$libdir"
+ 		    ;;
+ 		esac
+ 	      fi
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0023-Use-SYSTEMLIBS_DIR-replacement-instead-of-hardcoding.patch b/meta/recipes-devtools/gcc/gcc-9.1/0023-Use-SYSTEMLIBS_DIR-replacement-instead-of-hardcoding.patch
new file mode 100644
index 0000000000..fdea599abd
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0023-Use-SYSTEMLIBS_DIR-replacement-instead-of-hardcoding.patch
@@ -0,0 +1,29 @@
+From 3a554b321250f6ddf1277e5559890ee977e78cb0 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 28 Apr 2015 23:15:27 -0700
+Subject: [PATCH 23/37] Use SYSTEMLIBS_DIR replacement instead of hardcoding
+ base_libdir
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/config/aarch64/aarch64-linux.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/config/aarch64/aarch64-linux.h b/gcc/config/aarch64/aarch64-linux.h
+index 9d0292d64f2..51661995fc7 100644
+--- a/gcc/config/aarch64/aarch64-linux.h
++++ b/gcc/config/aarch64/aarch64-linux.h
+@@ -21,7 +21,7 @@
+ #ifndef GCC_AARCH64_LINUX_H
+ #define GCC_AARCH64_LINUX_H
+ 
+-#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
++#define GLIBC_DYNAMIC_LINKER  SYSTEMLIBS_DIR "ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
+ 
+ #undef MUSL_DYNAMIC_LINKER
+ #define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0024-aarch64-Add-support-for-musl-ldso.patch b/meta/recipes-devtools/gcc/gcc-9.1/0024-aarch64-Add-support-for-musl-ldso.patch
new file mode 100644
index 0000000000..f53c9949c7
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0024-aarch64-Add-support-for-musl-ldso.patch
@@ -0,0 +1,28 @@
+From b7001034f35e7e5090fa95cb9a622469300cd45d Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 28 Apr 2015 23:18:39 -0700
+Subject: [PATCH 24/37] aarch64: Add support for musl ldso
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/config/aarch64/aarch64-linux.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/config/aarch64/aarch64-linux.h b/gcc/config/aarch64/aarch64-linux.h
+index 51661995fc7..db687f753f6 100644
+--- a/gcc/config/aarch64/aarch64-linux.h
++++ b/gcc/config/aarch64/aarch64-linux.h
+@@ -24,7 +24,7 @@
+ #define GLIBC_DYNAMIC_LINKER  SYSTEMLIBS_DIR "ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
+ 
+ #undef MUSL_DYNAMIC_LINKER
+-#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
++#define MUSL_DYNAMIC_LINKER  SYSTEMLIBS_DIR "ld-musl-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
+ 
+ #undef  ASAN_CC1_SPEC
+ #define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0025-libcc1-fix-libcc1-s-install-path-and-rpath.patch b/meta/recipes-devtools/gcc/gcc-9.1/0025-libcc1-fix-libcc1-s-install-path-and-rpath.patch
new file mode 100644
index 0000000000..7b80655b68
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0025-libcc1-fix-libcc1-s-install-path-and-rpath.patch
@@ -0,0 +1,54 @@
+From 4d05ea7a12d1ba4515220c5c16f71ac650219db6 Mon Sep 17 00:00:00 2001
+From: Robert Yang <liezhi.yang@windriver.com>
+Date: Sun, 5 Jul 2015 20:25:18 -0700
+Subject: [PATCH 25/37] libcc1: fix libcc1's install path and rpath
+
+* Install libcc1.so and libcc1plugin.so into
+  $(libexecdir)/gcc/$(target_noncanonical)/$(gcc_version), as what we
+  had done to lto-plugin.
+* Fix bad RPATH iussue:
+  gcc-5.2.0: package gcc-plugins contains bad RPATH /patht/to/tmp/sysroots/qemux86-64/usr/lib64/../lib64 in file
+ /path/to/gcc/5.2.0-r0/packages-split/gcc-plugins/usr/lib64/gcc/x86_64-poky-linux/5.2.0/plugin/libcc1plugin.so.0.0.0
+ [rpaths]
+
+Upstream-Status: Inappropriate [OE configuration]
+
+Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
+---
+ libcc1/Makefile.am | 4 ++--
+ libcc1/Makefile.in | 4 ++--
+ 2 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/libcc1/Makefile.am b/libcc1/Makefile.am
+index 72c6aead475..42a87740b31 100644
+--- a/libcc1/Makefile.am
++++ b/libcc1/Makefile.am
+@@ -37,8 +37,8 @@ libiberty = $(if $(wildcard $(libiberty_noasan)),$(Wc)$(libiberty_noasan), \
+ 	    $(Wc)$(libiberty_normal)))
+ libiberty_dep = $(patsubst $(Wc)%,%,$(libiberty))
+ 
+-plugindir = $(libdir)/gcc/$(target_noncanonical)/$(gcc_version)/plugin
+-cc1libdir = $(libdir)/$(libsuffix)
++cc1libdir = $(libexecdir)/gcc/$(target_noncanonical)/$(gcc_version)
++plugindir = $(cc1libdir)
+ 
+ if ENABLE_PLUGIN
+ plugin_LTLIBRARIES = libcc1plugin.la libcp1plugin.la
+diff --git a/libcc1/Makefile.in b/libcc1/Makefile.in
+index 7104b649026..2103c477468 100644
+--- a/libcc1/Makefile.in
++++ b/libcc1/Makefile.in
+@@ -393,8 +393,8 @@ libiberty = $(if $(wildcard $(libiberty_noasan)),$(Wc)$(libiberty_noasan), \
+ 	    $(Wc)$(libiberty_normal)))
+ 
+ libiberty_dep = $(patsubst $(Wc)%,%,$(libiberty))
+-plugindir = $(libdir)/gcc/$(target_noncanonical)/$(gcc_version)/plugin
+-cc1libdir = $(libdir)/$(libsuffix)
++cc1libdir = $(libexecdir)/gcc/$(target_noncanonical)/$(gcc_version)
++plugindir = $(cc1libdir)
+ @ENABLE_PLUGIN_TRUE@plugin_LTLIBRARIES = libcc1plugin.la libcp1plugin.la
+ @ENABLE_PLUGIN_TRUE@cc1lib_LTLIBRARIES = libcc1.la
+ shared_source = callbacks.cc callbacks.hh connection.cc connection.hh \
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0026-handle-sysroot-support-for-nativesdk-gcc.patch b/meta/recipes-devtools/gcc/gcc-9.1/0026-handle-sysroot-support-for-nativesdk-gcc.patch
new file mode 100644
index 0000000000..7062c03197
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0026-handle-sysroot-support-for-nativesdk-gcc.patch
@@ -0,0 +1,213 @@
+From fe175ac845f1ac6965ede0240e9b763ae520614d Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 7 Dec 2015 23:39:54 +0000
+Subject: [PATCH 26/37] handle sysroot support for nativesdk-gcc
+
+Being able to build a nativesdk gcc is useful, particularly in cases
+where the host compiler may be of an incompatible version (or a 32
+bit compiler is needed).
+
+Sadly, building nativesdk-gcc is not straight forward. We install
+nativesdk-gcc into a relocatable location and this means that its
+library locations can change. "Normal" sysroot support doesn't help
+in this case since the values of paths like "libdir" change, not just
+base root directory of the system.
+
+In order to handle this we do two things:
+
+a) Add %r into spec file markup which can be used for injected paths
+   such as SYSTEMLIBS_DIR (see gcc_multilib_setup()).
+b) Add other paths which need relocation into a .gccrelocprefix section
+   which the relocation code will notice and adjust automatically.
+
+Upstream-Status: Inappropriate
+RP 2015/7/28
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/cppdefault.c | 50 +++++++++++++++++++++++++++++++++++-------------
+ gcc/cppdefault.h |  3 ++-
+ gcc/gcc.c        | 20 +++++++++++++------
+ 3 files changed, 53 insertions(+), 20 deletions(-)
+
+diff --git a/gcc/cppdefault.c b/gcc/cppdefault.c
+index 980e2bd47a7..39b6059efdc 100644
+--- a/gcc/cppdefault.c
++++ b/gcc/cppdefault.c
+@@ -35,6 +35,30 @@
+ # undef CROSS_INCLUDE_DIR
+ #endif
+ 
++static char GPLUSPLUS_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_INCLUDE_DIR;
++static char GCC_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GCC_INCLUDE_DIR;
++static char GPLUSPLUS_TOOL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_TOOL_INCLUDE_DIR;
++static char GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = GPLUSPLUS_BACKWARD_INCLUDE_DIR;
++static char STANDARD_STARTFILE_PREFIX_2VAR[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET;
++#ifdef LOCAL_INCLUDE_DIR
++static char LOCAL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = LOCAL_INCLUDE_DIR;
++#endif
++#ifdef PREFIX_INCLUDE_DIR
++static char PREFIX_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = PREFIX_INCLUDE_DIR;
++#endif
++#ifdef FIXED_INCLUDE_DIR
++static char FIXED_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = FIXED_INCLUDE_DIR;
++#endif
++#ifdef CROSS_INCLUDE_DIR
++static char CROSS_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = CROSS_INCLUDE_DIR;
++#endif
++#ifdef TOOL_INCLUDE_DIR
++static char TOOL_INCLUDE_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = TOOL_INCLUDE_DIR;
++#endif
++#ifdef NATIVE_SYSTEM_HEADER_DIR
++static char NATIVE_SYSTEM_HEADER_DIRVAR[4096] __attribute__ ((section (".gccrelocprefix"))) = NATIVE_SYSTEM_HEADER_DIR;
++#endif
++
+ const struct default_include cpp_include_defaults[]
+ #ifdef INCLUDE_DEFAULTS
+ = INCLUDE_DEFAULTS;
+@@ -42,38 +66,38 @@ const struct default_include cpp_include_defaults[]
+ = {
+ #ifdef GPLUSPLUS_INCLUDE_DIR
+     /* Pick up GNU C++ generic include files.  */
+-    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,
++    { GPLUSPLUS_INCLUDE_DIRVAR, "G++", 1, 1,
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
+ #endif
+ #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
+     /* Pick up GNU C++ target-dependent include files.  */
+-    { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,
++    { GPLUSPLUS_TOOL_INCLUDE_DIRVAR, "G++", 1, 1,
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },
+ #endif
+ #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
+     /* Pick up GNU C++ backward and deprecated include files.  */
+-    { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,
++    { GPLUSPLUS_BACKWARD_INCLUDE_DIRVAR, "G++", 1, 1,
+       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
+ #endif
+ #ifdef GCC_INCLUDE_DIR
+     /* This is the dir for gcc's private headers.  */
+-    { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
++    { GCC_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0 },
+ #endif
+ #ifdef GCC_INCLUDE_SUBDIR_TARGET
+     /* This is the dir for gcc's private headers under the specified sysroot.  */
+-    { STANDARD_STARTFILE_PREFIX_2 GCC_INCLUDE_SUBDIR_TARGET, "GCC", 0, 0, 1, 0 },
++    { STANDARD_STARTFILE_PREFIX_2VAR, "GCC", 0, 0, 1, 0 },
+ #endif
+ #ifdef LOCAL_INCLUDE_DIR
+     /* /usr/local/include comes before the fixincluded header files.  */
+-    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },
+-    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
++    { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 2 },
++    { LOCAL_INCLUDE_DIRVAR, 0, 0, 1, 1, 0 },
+ #endif
+ #ifdef PREFIX_INCLUDE_DIR
+-    { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 },
++    { PREFIX_INCLUDE_DIRVAR, 0, 0, 1, 0, 0 },
+ #endif
+ #ifdef FIXED_INCLUDE_DIR
+     /* This is the dir for fixincludes.  */
+-    { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0,
++    { FIXED_INCLUDE_DIRVAR, "GCC", 0, 0, 0,
+       /* A multilib suffix needs adding if different multilibs use
+ 	 different headers.  */
+ #ifdef SYSROOT_HEADERS_SUFFIX_SPEC
+@@ -85,16 +109,16 @@ const struct default_include cpp_include_defaults[]
+ #endif
+ #ifdef CROSS_INCLUDE_DIR
+     /* One place the target system's headers might be.  */
+-    { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
++    { CROSS_INCLUDE_DIRVAR, "GCC", 0, 0, 0, 0 },
+ #endif
+ #ifdef TOOL_INCLUDE_DIR
+     /* Another place the target system's headers might be.  */
+-    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 },
++    { TOOL_INCLUDE_DIRVAR, "BINUTILS", 0, 1, 0, 0 },
+ #endif
+ #ifdef NATIVE_SYSTEM_HEADER_DIR
+     /* /usr/include comes dead last.  */
+-    { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 },
+-    { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 },
++    { NATIVE_SYSTEM_HEADER_DIRVAR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 },
++    { NATIVE_SYSTEM_HEADER_DIRVAR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 },
+ #endif
+     { 0, 0, 0, 0, 0, 0 }
+   };
+diff --git a/gcc/cppdefault.h b/gcc/cppdefault.h
+index e2d96f1e760..29fa5f815c8 100644
+--- a/gcc/cppdefault.h
++++ b/gcc/cppdefault.h
+@@ -33,7 +33,8 @@
+ 
+ struct default_include
+ {
+-  const char *const fname;	/* The name of the directory.  */
++  const char *fname;     /* The name of the directory.  */
++
+   const char *const component;	/* The component containing the directory
+ 				   (see update_path in prefix.c) */
+   const char cplusplus;		/* Only look here if we're compiling C++.  */
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index 14b1a6e8c44..857310092d9 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -253,6 +253,8 @@ FILE *report_times_to_file = NULL;
+ #endif
+ static const char *target_system_root = DEFAULT_TARGET_SYSTEM_ROOT;
+ 
++static char target_relocatable_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = SYSTEMLIBS_DIR;
++
+ /* Nonzero means pass the updated target_system_root to the compiler.  */
+ 
+ static int target_system_root_changed;
+@@ -527,6 +529,7 @@ or with constant text in a single argument.
+  %G     process LIBGCC_SPEC as a spec.
+  %R     Output the concatenation of target_system_root and
+         target_sysroot_suffix.
++ %r     Output the base path target_relocatable_prefix
+  %S     process STARTFILE_SPEC as a spec.  A capital S is actually used here.
+  %E     process ENDFILE_SPEC as a spec.  A capital E is actually used here.
+  %C     process CPP_SPEC as a spec.
+@@ -1493,10 +1496,10 @@ static const char *gcc_libexec_prefix;
+    gcc_exec_prefix is set because, in that case, we know where the
+    compiler has been installed, and use paths relative to that
+    location instead.  */
+-static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
+-static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
+-static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
+-static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
++static char standard_exec_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_EXEC_PREFIX;
++static char standard_libexec_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_LIBEXEC_PREFIX;
++static char standard_bindir_prefix[4096] __attribute__ ((section (".gccrelocprefix"))) = STANDARD_BINDIR_PREFIX;
++static char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
+ 
+ /* For native compilers, these are well-known paths containing
+    components that may be provided by the system.  For cross
+@@ -1504,9 +1507,9 @@ static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
+ static const char *md_exec_prefix = MD_EXEC_PREFIX;
+ static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
+ static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
+-static const char *const standard_startfile_prefix_1
++static char standard_startfile_prefix_1[4096] __attribute__ ((section (".gccrelocprefix")))
+   = STANDARD_STARTFILE_PREFIX_1;
+-static const char *const standard_startfile_prefix_2
++static char standard_startfile_prefix_2[4096] __attribute__ ((section (".gccrelocprefix")))
+   = STANDARD_STARTFILE_PREFIX_2;
+ 
+ /* A relative path to be used in finding the location of tools
+@@ -5915,6 +5918,11 @@ do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
+ 	      }
+ 	    break;
+ 
++          case 'r':
++              obstack_grow (&obstack, target_relocatable_prefix,
++		      strlen (target_relocatable_prefix));
++            break;
++
+ 	  case 'S':
+ 	    value = do_spec_1 (startfile_spec, 0, NULL);
+ 	    if (value != 0)
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0027-Search-target-sysroot-gcc-version-specific-dirs-with.patch b/meta/recipes-devtools/gcc/gcc-9.1/0027-Search-target-sysroot-gcc-version-specific-dirs-with.patch
new file mode 100644
index 0000000000..e3ec943bfe
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0027-Search-target-sysroot-gcc-version-specific-dirs-with.patch
@@ -0,0 +1,102 @@
+From bf07530706382c90fb89f7d8a727eb9aeb29a56a Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 7 Dec 2015 23:41:45 +0000
+Subject: [PATCH 27/37] Search target sysroot gcc version specific dirs with
+ multilib.
+
+We install the gcc libraries (such as crtbegin.p) into
+<sysroot><libdir>/<target-sys>/5.2.0/
+which is a default search path for GCC (aka multi_suffix in the
+code below). <target-sys> is 'machine' in gcc's terminology. We use
+these directories so that multiple gcc versions could in theory
+co-exist on target.
+
+We only want to build one gcc-cross-canadian per arch and have this work
+for all multilibs. <target-sys> can be handled by mapping the multilib
+<target-sys> to the one used by gcc-cross-canadian, e.g.
+mips64-polkmllib32-linux
+is symlinked to by mips64-poky-linux.
+
+The default gcc search path in the target sysroot for a "lib64" mutlilib
+is:
+
+<sysroot>/lib32/mips64-poky-linux/5.2.0/
+<sysroot>/lib32/../lib64/
+<sysroot>/usr/lib32/mips64-poky-linux/5.2.0/
+<sysroot>/usr/lib32/../lib64/
+<sysroot>/lib32/
+<sysroot>/usr/lib32/
+
+which means that the lib32 crtbegin.o will be found and the lib64 ones
+will not which leads to compiler failures.
+
+This patch injects a multilib version of that path first so the lib64
+binaries can be found first. With this change the search path becomes:
+
+<sysroot>/lib32/../lib64/mips64-poky-linux/5.2.0/
+<sysroot>/lib32/mips64-poky-linux/5.2.0/
+<sysroot>/lib32/../lib64/
+<sysroot>/usr/lib32/../lib64/mips64-poky-linux/5.2.0/
+<sysroot>/usr/lib32/mips64-poky-linux/5.2.0/
+<sysroot>/usr/lib32/../lib64/
+<sysroot>/lib32/
+<sysroot>/usr/lib32/
+
+Upstream-Status: Pending
+RP 2015/7/31
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/gcc.c | 29 ++++++++++++++++++++++++++++-
+ 1 file changed, 28 insertions(+), 1 deletion(-)
+
+diff --git a/gcc/gcc.c b/gcc/gcc.c
+index 857310092d9..6363e63b8ff 100644
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -2610,7 +2610,7 @@ for_each_path (const struct path_prefix *paths,
+       if (path == NULL)
+ 	{
+ 	  len = paths->max_len + extra_space + 1;
+-	  len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len);
++	  len += MAX ((suffix_len + multi_os_dir_len), multiarch_len);
+ 	  path = XNEWVEC (char, len);
+ 	}
+ 
+@@ -2622,6 +2622,33 @@ for_each_path (const struct path_prefix *paths,
+ 	  /* Look first in MACHINE/VERSION subdirectory.  */
+ 	  if (!skip_multi_dir)
+ 	    {
++	      if (!(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
++	        {
++	          const char *this_multi;
++	          size_t this_multi_len;
++
++	          if (pl->os_multilib)
++		    {
++		      this_multi = multi_os_dir;
++		      this_multi_len = multi_os_dir_len;
++		    }
++	          else
++		    {
++		      this_multi = multi_dir;
++		      this_multi_len = multi_dir_len;
++		    }
++
++	          /* Look in multilib MACHINE/VERSION subdirectory first */
++	          if (this_multi_len)
++	            {
++		      memcpy (path + len, this_multi, this_multi_len + 1);
++	              memcpy (path + len + this_multi_len, multi_suffix, suffix_len + 1);
++	              ret = callback (path, callback_info);
++	                if (ret)
++		          break;
++	            }
++	        }
++
+ 	      memcpy (path + len, multi_suffix, suffix_len + 1);
+ 	      ret = callback (path, callback_info);
+ 	      if (ret)
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0028-Fix-various-_FOR_BUILD-and-related-variables.patch b/meta/recipes-devtools/gcc/gcc-9.1/0028-Fix-various-_FOR_BUILD-and-related-variables.patch
new file mode 100644
index 0000000000..bdcbd323cb
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0028-Fix-various-_FOR_BUILD-and-related-variables.patch
@@ -0,0 +1,137 @@
+From 16ab14b7221b3491cd43ab745f57b60ca83089df Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 7 Dec 2015 23:42:45 +0000
+Subject: [PATCH 28/37] Fix various _FOR_BUILD and related variables
+
+When doing a FOR_BUILD thing, you have to override CFLAGS with
+CFLAGS_FOR_BUILD. And if you use C++, you also have to override
+CXXFLAGS with CXXFLAGS_FOR_BUILD.
+Without this, when building for mingw, you end up trying to use
+the mingw headers for a host build.
+
+The same goes for other variables as well, such as CPPFLAGS,
+CPP, and GMPINC.
+
+Upstream-Status: Pending
+
+Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ Makefile.in      | 6 ++++++
+ Makefile.tpl     | 5 +++++
+ gcc/Makefile.in  | 2 +-
+ gcc/configure    | 2 +-
+ gcc/configure.ac | 2 +-
+ 5 files changed, 14 insertions(+), 3 deletions(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index b21e0791f55..0e573791202 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -152,6 +152,7 @@ BUILD_EXPORTS = \
+ 	CPP="$(CC_FOR_BUILD) -E"; export CPP; \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)"; export CFLAGS; \
+ 	CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
++	CPPFLAGS="$(CPPFLAGS_FOR_BUILD)"; export CPPFLAGS; \
+ 	CXX="$(CXX_FOR_BUILD)"; export CXX; \
+ 	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)"; export CXXFLAGS; \
+ 	GFORTRAN="$(GFORTRAN_FOR_BUILD)"; export GFORTRAN; \
+@@ -171,6 +172,9 @@ BUILD_EXPORTS = \
+ # built for the build system to override those in BASE_FLAGS_TO_PASS.
+ EXTRA_BUILD_FLAGS = \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)" \
++	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \
++	CPP="$(CC_FOR_BUILD) -E" \
++	CPPFLAGS="$(CPPFLAGS_FOR_BUILD)" \
+ 	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+ 
+ # This is the list of directories to built for the host system.
+@@ -188,6 +192,7 @@ HOST_SUBDIR = @host_subdir@
+ HOST_EXPORTS = \
+ 	$(BASE_EXPORTS) \
+ 	CC="$(CC)"; export CC; \
++	CPP="$(CC) -E"; export CPP; \
+ 	ADA_CFLAGS="$(ADA_CFLAGS)"; export ADA_CFLAGS; \
+ 	CFLAGS="$(CFLAGS)"; export CFLAGS; \
+ 	CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
+@@ -775,6 +780,7 @@ BASE_FLAGS_TO_PASS = \
+ 	"CC_FOR_BUILD=$(CC_FOR_BUILD)" \
+ 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
+ 	"CXX_FOR_BUILD=$(CXX_FOR_BUILD)" \
++	"CXXFLAGS_FOR_BUILD=$(CXXFLAGS_FOR_BUILD)" \
+ 	"EXPECT=$(EXPECT)" \
+ 	"FLEX=$(FLEX)" \
+ 	"INSTALL=$(INSTALL)" \
+diff --git a/Makefile.tpl b/Makefile.tpl
+index 126296fb49a..15fb236bcc0 100644
+--- a/Makefile.tpl
++++ b/Makefile.tpl
+@@ -154,6 +154,7 @@ BUILD_EXPORTS = \
+ 	CC="$(CC_FOR_BUILD)"; export CC; \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)"; export CFLAGS; \
+ 	CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
++	CPPFLAGS="$(CPPFLAGS_FOR_BUILD)"; export CPPFLAGS; \
+ 	CXX="$(CXX_FOR_BUILD)"; export CXX; \
+ 	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)"; export CXXFLAGS; \
+ 	GFORTRAN="$(GFORTRAN_FOR_BUILD)"; export GFORTRAN; \
+@@ -173,6 +174,9 @@ BUILD_EXPORTS = \
+ # built for the build system to override those in BASE_FLAGS_TO_PASS.
+ EXTRA_BUILD_FLAGS = \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)" \
++	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \
++	CPP="$(CC_FOR_BUILD) -E" \
++	CPPFLAGS="$(CPPFLAGS_FOR_BUILD)" \
+ 	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+ 
+ # This is the list of directories to built for the host system.
+@@ -190,6 +194,7 @@ HOST_SUBDIR = @host_subdir@
+ HOST_EXPORTS = \
+ 	$(BASE_EXPORTS) \
+ 	CC="$(CC)"; export CC; \
++	CPP="$(CC) -E"; export CPP; \
+ 	ADA_CFLAGS="$(ADA_CFLAGS)"; export ADA_CFLAGS; \
+ 	CFLAGS="$(CFLAGS)"; export CFLAGS; \
+ 	CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
+diff --git a/gcc/Makefile.in b/gcc/Makefile.in
+index eb1dc304de2..93a43146846 100644
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -805,7 +805,7 @@ BUILD_LDFLAGS=@BUILD_LDFLAGS@
+ BUILD_NO_PIE_FLAG = @BUILD_NO_PIE_FLAG@
+ BUILD_LDFLAGS += $(BUILD_NO_PIE_FLAG)
+ BUILD_CPPFLAGS= -I. -I$(@D) -I$(srcdir) -I$(srcdir)/$(@D) \
+-		-I$(srcdir)/../include @INCINTL@ $(CPPINC) $(CPPFLAGS)
++		-I$(srcdir)/../include @INCINTL@ $(CPPINC) $(CPPFLAGS_FOR_BUILD)
+ 
+ # Actual name to use when installing a native compiler.
+ GCC_INSTALL_NAME := $(shell echo gcc|sed '$(program_transform_name)')
+diff --git a/gcc/configure b/gcc/configure
+index 2e822caf66d..2c50676a2bf 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -11965,7 +11965,7 @@ else
+ 	CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
+ 	CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \
+ 	LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \
+-	GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \
++	GMPINC="" CPPFLAGS="${CPPFLAGS_FOR_BUILD} -DGENERATOR_FILE" \
+ 	${realsrcdir}/configure \
+ 		--enable-languages=${enable_languages-all} \
+ 		--target=$target_alias --host=$build_alias --build=$build_alias
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 70e7bac78c4..d29eb580429 100644
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -1743,7 +1743,7 @@ else
+ 	CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
+ 	CXX="${CXX_FOR_BUILD}" CXXFLAGS="${CXXFLAGS_FOR_BUILD}" \
+ 	LD="${LD_FOR_BUILD}" LDFLAGS="${LDFLAGS_FOR_BUILD}" \
+-	GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \
++	GMPINC="" CPPFLAGS="${CPPFLAGS_FOR_BUILD} -DGENERATOR_FILE" \
+ 	${realsrcdir}/configure \
+ 		--enable-languages=${enable_languages-all} \
+ 		--target=$target_alias --host=$build_alias --build=$build_alias
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0029-nios2-Define-MUSL_DYNAMIC_LINKER.patch b/meta/recipes-devtools/gcc/gcc-9.1/0029-nios2-Define-MUSL_DYNAMIC_LINKER.patch
new file mode 100644
index 0000000000..08da1ab986
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0029-nios2-Define-MUSL_DYNAMIC_LINKER.patch
@@ -0,0 +1,28 @@
+From e293df9a5734b43cb60cc47a3f5ff9af50fee3aa Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 2 Feb 2016 10:26:10 -0800
+Subject: [PATCH 29/37] nios2: Define MUSL_DYNAMIC_LINKER
+
+Upstream-Status: Pending
+
+Signed-off-by: Marek Vasut <marex@denx.de>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/config/nios2/linux.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/gcc/config/nios2/linux.h b/gcc/config/nios2/linux.h
+index 698734add35..eeee60ecfea 100644
+--- a/gcc/config/nios2/linux.h
++++ b/gcc/config/nios2/linux.h
+@@ -30,6 +30,7 @@
+ #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-nios2.so.1"
++#define MUSL_DYNAMIC_LINKER  "/lib/ld-musl-nios2.so.1"
+ 
+ #undef LINK_SPEC
+ #define LINK_SPEC LINK_SPEC_ENDIAN \
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0030-Add-ssp_nonshared-to-link-commandline-for-musl-targe.patch b/meta/recipes-devtools/gcc/gcc-9.1/0030-Add-ssp_nonshared-to-link-commandline-for-musl-targe.patch
new file mode 100644
index 0000000000..792e852614
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0030-Add-ssp_nonshared-to-link-commandline-for-musl-targe.patch
@@ -0,0 +1,87 @@
+From 6232013df7fd65c994869789fa4b93c8d2303d1c Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 27 Jun 2017 18:10:54 -0700
+Subject: [PATCH 30/37] Add ssp_nonshared to link commandline for musl targets
+
+when -fstack-protector options are enabled we need to
+link with ssp_shared on musl since it does not provide
+the __stack_chk_fail_local() so essentially it provides
+libssp but not libssp_nonshared something like
+TARGET_LIBC_PROVIDES_SSP_BUT_NOT_SSP_NONSHARED
+ where-as for glibc the needed symbols
+are already present in libc_nonshared library therefore
+we do not need any library helper on glibc based systems
+but musl needs the libssp_noshared from gcc
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/config/linux.h          |  7 +++++++
+ gcc/config/rs6000/linux.h   | 10 ++++++++++
+ gcc/config/rs6000/linux64.h | 10 ++++++++++
+ 3 files changed, 27 insertions(+)
+
+diff --git a/gcc/config/linux.h b/gcc/config/linux.h
+index 4b05d8e93d1..0ca117e2ed4 100644
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -195,6 +195,13 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+     { GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 },		\
+     { 0, 0, 0, 0, 0, 0 }				\
+   }
++#ifdef TARGET_LIBC_PROVIDES_SSP
++#undef LINK_SSP_SPEC
++#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
++		       "|fstack-protector-strong|fstack-protector-explicit" \
++		       ":-lssp_nonshared}"
++#endif
++
+ #endif
+ 
+ #if (DEFAULT_LIBC == LIBC_UCLIBC) && defined (SINGLE_LIBC) /* uClinux */
+diff --git a/gcc/config/rs6000/linux.h b/gcc/config/rs6000/linux.h
+index 96b97877989..0bbde54c844 100644
+--- a/gcc/config/rs6000/linux.h
++++ b/gcc/config/rs6000/linux.h
+@@ -107,6 +107,16 @@
+ 					 " -m elf32ppclinux")
+ #endif
+ 
++/* link libssp_nonshared.a with musl */
++#if DEFAULT_LIBC == LIBC_MUSL
++#ifdef TARGET_LIBC_PROVIDES_SSP
++#undef LINK_SSP_SPEC
++#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
++		       "|fstack-protector-strong|fstack-protector-explicit" \
++		       ":-lssp_nonshared}"
++#endif
++#endif
++
+ #undef LINK_OS_LINUX_SPEC
+ #define LINK_OS_LINUX_SPEC LINK_OS_LINUX_EMUL " %{!shared: %{!static: \
+   %{!static-pie: \
+diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h
+index 982ca274621..83c07b275da 100644
+--- a/gcc/config/rs6000/linux64.h
++++ b/gcc/config/rs6000/linux64.h
+@@ -461,6 +461,16 @@ extern int dot_symbols;
+ 					   " -m elf64ppc")
+ #endif
+ 
++/* link libssp_nonshared.a with musl */
++#if DEFAULT_LIBC == LIBC_MUSL
++#ifdef TARGET_LIBC_PROVIDES_SSP
++#undef LINK_SSP_SPEC
++#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
++		       "|fstack-protector-strong|fstack-protector-explicit" \
++		       ":-lssp_nonshared}"
++#endif
++#endif
++
+ #define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \
+   %{!static-pie: \
+     %{rdynamic:-export-dynamic} \
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0031-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch b/meta/recipes-devtools/gcc/gcc-9.1/0031-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch
new file mode 100644
index 0000000000..efa40bec5e
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0031-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch
@@ -0,0 +1,125 @@
+From 1877b2ee5835a3716e6544706fbccd8c656e0a32 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Apr 2016 20:03:28 +0000
+Subject: [PATCH 31/37] libgcc: Add knob to use ldbl-128 on ppc
+
+musl does not support ldbl 128 so we can not assume
+that linux as a whole supports ldbl-128 bits, instead
+act upon configure option passed to gcc and assume no
+on musl and yes otherwise if no option is passed since
+default behaviour is to assume ldbl128 it does not
+change the defaults
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ libgcc/Makefile.in           |  1 +
+ libgcc/config/rs6000/t-linux |  5 ++++-
+ libgcc/configure             | 18 ++++++++++++++++++
+ libgcc/configure.ac          | 12 ++++++++++++
+ 4 files changed, 35 insertions(+), 1 deletion(-)
+ mode change 100644 => 100755 libgcc/configure
+
+diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in
+index ea390a5bbea..114c7876304 100644
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -50,6 +50,7 @@ unwind_header = @unwind_header@
+ md_unwind_header = @md_unwind_header@
+ sfp_machine_header = @sfp_machine_header@
+ thread_header = @thread_header@
++with_ldbl128 = @with_ldbl128@
+ 
+ host_noncanonical = @host_noncanonical@
+ real_host_noncanonical = @real_host_noncanonical@
+diff --git a/libgcc/config/rs6000/t-linux b/libgcc/config/rs6000/t-linux
+index 4f6d4c4a4d2..c50dd94a2da 100644
+--- a/libgcc/config/rs6000/t-linux
++++ b/libgcc/config/rs6000/t-linux
+@@ -1,3 +1,6 @@
+ SHLIB_MAPFILES += $(srcdir)/config/rs6000/libgcc-glibc.ver
+ 
+-HOST_LIBGCC2_CFLAGS += -mlong-double-128 -mno-minimal-toc
++ifeq ($(with_ldbl128),yes)
++HOST_LIBGCC2_CFLAGS += -mlong-double-128
++endif
++HOST_LIBGCC2_CFLAGS += -mno-minimal-toc
+diff --git a/libgcc/configure b/libgcc/configure
+old mode 100644
+new mode 100755
+index 36dbbc1f699..b5dd5c34e2a
+--- a/libgcc/configure
++++ b/libgcc/configure
+@@ -651,6 +651,7 @@ build_vendor
+ build_cpu
+ build
+ with_aix_soname
++with_ldbl128
+ enable_vtable_verify
+ enable_gcov
+ enable_shared
+@@ -702,6 +703,7 @@ with_ld
+ enable_shared
+ enable_gcov
+ enable_vtable_verify
++with_long_double_128
+ with_aix_soname
+ enable_version_specific_runtime_libs
+ with_slibdir
+@@ -1363,6 +1365,7 @@ Optional Packages:
+   --with-target-subdir=SUBDIR      Configuring in a subdirectory for target
+   --with-cross-host=HOST           Configuring with a cross compiler
+   --with-ld               arrange to use the specified ld (full pathname)
++  --with-long-double-128  use 128-bit long double by default
+   --with-aix-soname=aix|svr4|both
+                           shared library versioning (aka "SONAME") variant to
+                           provide on AIX
+@@ -2268,6 +2271,21 @@ fi
+ 
+ 
+ 
++# Check whether --with-long-double-128 was given.
++if test "${with_long_double_128+set}" = set; then :
++  withval=$with_long_double_128; with_ldbl128="$with_long_double_128"
++else
++  case "${host}" in
++ power*-*-musl*)
++   with_ldbl128="no";;
++ *) with_ldbl128="yes";;
++ esac
++
++fi
++
++
++
++
+ # Check whether --with-aix-soname was given.
+ if test "${with_aix_soname+set}" = set; then :
+   withval=$with_aix_soname; case "${host}:${enable_shared}" in
+diff --git a/libgcc/configure.ac b/libgcc/configure.ac
+index 8e96cafdf8b..9247856bf24 100644
+--- a/libgcc/configure.ac
++++ b/libgcc/configure.ac
+@@ -82,6 +82,18 @@ AC_ARG_ENABLE(vtable-verify,
+ [enable_vtable_verify=no])
+ AC_SUBST(enable_vtable_verify)
+ 
++AC_ARG_WITH(long-double-128,
++[AS_HELP_STRING([--with-long-double-128],
++    [use 128-bit long double by default])],
++      with_ldbl128="$with_long_double_128",
++[case "${host}" in
++ power*-*-musl*)
++   with_ldbl128="no";;
++ *) with_ldbl128="yes";;
++ esac
++])
++AC_SUBST(with_ldbl128)
++
+ AC_ARG_WITH(aix-soname,
+ [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
+     [shared library versioning (aka "SONAME") variant to provide on AIX])],
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0032-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch b/meta/recipes-devtools/gcc/gcc-9.1/0032-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch
new file mode 100644
index 0000000000..3de8345f93
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0032-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch
@@ -0,0 +1,29 @@
+From 9d76a765a12677597134953352b25dc16dea721e Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 4 May 2016 21:11:34 -0700
+Subject: [PATCH 32/37] Link libgcc using LDFLAGS, not just SHLIB_LDFLAGS
+
+Upstream-Status: Pending
+
+Signed-off-by: Christopher Larson <chris_larson@mentor.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ libgcc/config/t-slibgcc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libgcc/config/t-slibgcc b/libgcc/config/t-slibgcc
+index 099bf23e62f..436b277a79f 100644
+--- a/libgcc/config/t-slibgcc
++++ b/libgcc/config/t-slibgcc
+@@ -32,7 +32,7 @@ SHLIB_INSTALL_SOLINK = $(LN_S) $(SHLIB_SONAME) \
+ 	$(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)
+ 
+ SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) -shared -nodefaultlibs \
+-	$(SHLIB_LDFLAGS) \
++	$(LDFLAGS) $(SHLIB_LDFLAGS) \
+ 	-o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp @multilib_flags@ \
+ 	$(SHLIB_OBJS) $(SHLIB_LC) && \
+ 	rm -f $(SHLIB_DIR)/$(SHLIB_SOLINK) && \
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0033-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch b/meta/recipes-devtools/gcc/gcc-9.1/0033-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch
new file mode 100644
index 0000000000..d8cc643211
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0033-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch
@@ -0,0 +1,86 @@
+From 6c001e08bcd0568367a4aa2f991ab7d85b43a43d Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 24 Oct 2015 20:09:53 +0000
+Subject: [PATCH 33/37] libgcc_s: Use alias for __cpu_indicator_init instead of
+ symver
+
+Adapter from
+
+https://gcc.gnu.org/ml/gcc-patches/2015-05/msg00899.html
+
+This fix was debated but hasnt been applied gcc upstream since
+they expect musl to support '@' in symbol versioning which is
+a sun/gnu versioning extention. This patch however avoids the
+need for the '@' symbols at all
+
+libgcc/Changelog:
+
+2015-05-11  Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+	* config/i386/cpuinfo.c (__cpu_indicator_init_local): Add.
+	(__cpu_indicator_init@GCC_4.8.0, __cpu_model@GCC_4.8.0): Remove.
+
+	* config/i386/t-linux (HOST_LIBGCC2_CFLAGS): Remove -DUSE_ELF_SYMVER.
+
+gcc/Changelog:
+
+2015-05-11  Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+	* config/i386/i386.c (ix86_expand_builtin): Make __builtin_cpu_init
+	call __cpu_indicator_init_local instead of __cpu_indicator_init.
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/config/i386/i386.c       | 4 ++--
+ libgcc/config/i386/cpuinfo.c | 6 +++---
+ libgcc/config/i386/t-linux   | 2 +-
+ 3 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 88557f26c44..839308e2799 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -36577,10 +36577,10 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget,
+     {
+     case IX86_BUILTIN_CPU_INIT:
+       {
+-	/* Make it call __cpu_indicator_init in libgcc. */
++	/* Make it call __cpu_indicator_init_local in libgcc.a. */
+ 	tree call_expr, fndecl, type;
+         type = build_function_type_list (integer_type_node, NULL_TREE); 
+-	fndecl = build_fn_decl ("__cpu_indicator_init", type);
++	fndecl = build_fn_decl ("__cpu_indicator_init_local", type);
+ 	call_expr = build_call_expr (fndecl, 0); 
+ 	return expand_expr (call_expr, target, mode, EXPAND_NORMAL);
+       }
+diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
+index d6cb2de6265..ce04ef78205 100644
+--- a/libgcc/config/i386/cpuinfo.c
++++ b/libgcc/config/i386/cpuinfo.c
+@@ -504,7 +504,7 @@ __cpu_indicator_init (void)
+   return 0;
+ }
+ 
+-#if defined SHARED && defined USE_ELF_SYMVER
+-__asm__ (".symver __cpu_indicator_init, __cpu_indicator_init@GCC_4.8.0");
+-__asm__ (".symver __cpu_model, __cpu_model@GCC_4.8.0");
++#ifndef SHARED
++int __cpu_indicator_init_local (void)
++  __attribute__ ((weak, alias ("__cpu_indicator_init")));
+ #endif
+diff --git a/libgcc/config/i386/t-linux b/libgcc/config/i386/t-linux
+index 8506a635790..564296f788e 100644
+--- a/libgcc/config/i386/t-linux
++++ b/libgcc/config/i386/t-linux
+@@ -3,5 +3,5 @@
+ # t-slibgcc-elf-ver and t-linux
+ SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver
+ 
+-HOST_LIBGCC2_CFLAGS += -mlong-double-80 -DUSE_ELF_SYMVER $(CET_FLAGS)
++HOST_LIBGCC2_CFLAGS += -mlong-double-80 $(CET_FLAGS)
+ CRTSTUFF_T_CFLAGS += $(CET_FLAGS)
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0034-sync-gcc-stddef.h-with-musl.patch b/meta/recipes-devtools/gcc/gcc-9.1/0034-sync-gcc-stddef.h-with-musl.patch
new file mode 100644
index 0000000000..a2c35ab537
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0034-sync-gcc-stddef.h-with-musl.patch
@@ -0,0 +1,91 @@
+From 83ba95929c5908ae0f51ce148a30f85b085a178a Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 3 Feb 2017 12:56:00 -0800
+Subject: [PATCH 34/37] sync gcc stddef.h with musl
+
+musl defines ptrdiff_t size_t and wchar_t
+so dont define them here if musl is definining them
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/ginclude/stddef.h | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/gcc/ginclude/stddef.h b/gcc/ginclude/stddef.h
+index da692e1c01a..9a00c261adb 100644
+--- a/gcc/ginclude/stddef.h
++++ b/gcc/ginclude/stddef.h
+@@ -128,6 +128,7 @@ _TYPE_wchar_t;
+ #ifndef ___int_ptrdiff_t_h
+ #ifndef _GCC_PTRDIFF_T
+ #ifndef _PTRDIFF_T_DECLARED /* DragonFly */
++#ifndef __DEFINED_ptrdiff_t /* musl */
+ #define _PTRDIFF_T
+ #define _T_PTRDIFF_
+ #define _T_PTRDIFF
+@@ -137,10 +138,12 @@ _TYPE_wchar_t;
+ #define ___int_ptrdiff_t_h
+ #define _GCC_PTRDIFF_T
+ #define _PTRDIFF_T_DECLARED
++#define __DEFINED_ptrdiff_t /* musl */
+ #ifndef __PTRDIFF_TYPE__
+ #define __PTRDIFF_TYPE__ long int
+ #endif
+ typedef __PTRDIFF_TYPE__ ptrdiff_t;
++#endif /* __DEFINED_ptrdiff_t */
+ #endif /* _PTRDIFF_T_DECLARED */
+ #endif /* _GCC_PTRDIFF_T */
+ #endif /* ___int_ptrdiff_t_h */
+@@ -178,6 +181,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
+ #ifndef _GCC_SIZE_T
+ #ifndef _SIZET_
+ #ifndef __size_t
++#ifndef __DEFINED_size_t /* musl */
+ #define __size_t__	/* BeOS */
+ #define __SIZE_T__	/* Cray Unicos/Mk */
+ #define _SIZE_T
+@@ -194,6 +198,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
+ #define ___int_size_t_h
+ #define _GCC_SIZE_T
+ #define _SIZET_
++#define __DEFINED_size_t /* musl */
+ #if defined (__FreeBSD__) \
+   || defined(__DragonFly__) \
+   || defined(__FreeBSD_kernel__) \
+@@ -228,6 +233,7 @@ typedef long ssize_t;
+ #endif /* _SIZE_T */
+ #endif /* __SIZE_T__ */
+ #endif /* __size_t__ */
++#endif /* __DEFINED_size_t */
+ #undef	__need_size_t
+ #endif /* _STDDEF_H or __need_size_t.  */
+ 
+@@ -257,6 +263,7 @@ typedef long ssize_t;
+ #ifndef ___int_wchar_t_h
+ #ifndef __INT_WCHAR_T_H
+ #ifndef _GCC_WCHAR_T
++#ifndef __DEFINED_wchar_t /* musl */
+ #define __wchar_t__	/* BeOS */
+ #define __WCHAR_T__	/* Cray Unicos/Mk */
+ #define _WCHAR_T
+@@ -272,6 +279,7 @@ typedef long ssize_t;
+ #define __INT_WCHAR_T_H
+ #define _GCC_WCHAR_T
+ #define _WCHAR_T_DECLARED
++#define __DEFINED_wchar_t /* musl */
+ 
+ /* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
+    instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other
+@@ -337,6 +345,7 @@ typedef __WCHAR_TYPE__ wchar_t;
+ #endif
+ #endif /* __WCHAR_T__ */
+ #endif /* __wchar_t__ */
++#endif /* __DEFINED_wchar_t musl */
+ #undef	__need_wchar_t
+ #endif /* _STDDEF_H or __need_wchar_t.  */
+ 
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0035-fix-segmentation-fault-in-precompiled-header-generat.patch b/meta/recipes-devtools/gcc/gcc-9.1/0035-fix-segmentation-fault-in-precompiled-header-generat.patch
new file mode 100644
index 0000000000..ad1f6e7d10
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0035-fix-segmentation-fault-in-precompiled-header-generat.patch
@@ -0,0 +1,60 @@
+From c4f89e62c56975fee99304c9cbbe5be6e8bc9ed6 Mon Sep 17 00:00:00 2001
+From: Juro Bystricky <juro.bystricky@intel.com>
+Date: Mon, 19 Mar 2018 22:31:20 -0700
+Subject: [PATCH 35/37] fix segmentation fault in precompiled header generation
+
+Prevent a segmentation fault which occurs when using incorrect
+structure trying to access name of some named operators, such as
+CPP_NOT, CPP_AND etc. "token->val.node.spelling" cannot be used in
+those cases, as is may not be initialized at all.
+
+[YOCTO #11738]
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ libcpp/lex.c | 26 +++++++++++++++++++++-----
+ 1 file changed, 21 insertions(+), 5 deletions(-)
+
+diff --git a/libcpp/lex.c b/libcpp/lex.c
+index eedfcbb3146..15040a1b1f0 100644
+--- a/libcpp/lex.c
++++ b/libcpp/lex.c
+@@ -3280,11 +3280,27 @@ cpp_spell_token (cpp_reader *pfile, const cpp_token *token,
+     spell_ident:
+     case SPELL_IDENT:
+       if (forstring)
+-	{
+-	  memcpy (buffer, NODE_NAME (token->val.node.spelling),
+-		  NODE_LEN (token->val.node.spelling));
+-	  buffer += NODE_LEN (token->val.node.spelling);
+-	}
++        {
++          if (token->type == CPP_NAME)
++            {
++              memcpy (buffer, NODE_NAME (token->val.node.spelling),
++                    NODE_LEN (token->val.node.spelling));
++              buffer += NODE_LEN (token->val.node.spelling);
++              break;
++            }
++          /* NAMED_OP, cannot use node.spelling */
++          if (token->flags & NAMED_OP)
++            {
++              const char *str = cpp_named_operator2name (token->type);
++              if (str)
++                {
++                  size_t len = strlen(str);
++                  memcpy(buffer, str, len);
++                  buffer += len;
++                }
++              break;
++            }
++        }
+       else
+ 	buffer = _cpp_spell_ident_ucns (buffer, token->val.node.node);
+       break;
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0036-Fix-for-testsuite-failure.patch b/meta/recipes-devtools/gcc/gcc-9.1/0036-Fix-for-testsuite-failure.patch
new file mode 100644
index 0000000000..4fb0698afc
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0036-Fix-for-testsuite-failure.patch
@@ -0,0 +1,258 @@
+From 8d773b5ba6cf396ca76611963127ba2b516272b3 Mon Sep 17 00:00:00 2001
+From: RAGHUNATH LOLUR <raghunath.lolur@kpit.com>
+Date: Wed, 6 Dec 2017 22:52:26 -0800
+Subject: [PATCH 36/37] Fix for testsuite failure
+
+2017-11-16  Raghunath Lolur  <raghunath.lolur@kpit.com>
+
+	* gcc.dg/pr56275.c: If SSE is disabled, ensure that
+	"-mfpmath" is not set to use SSE. Set "-mfpmath=387".
+	* gcc.dg/pr68306.c: Likewise
+	* gcc.dg/pr68306-2.c: Likewise
+	* gcc.dg/pr68306-3.c: Likewise
+	* gcc.dg/pr69634.c: Likewise
+	* gcc.target/i386/amd64-abi-1.c: Likewise
+	* gcc.target/i386/funcspec-6.c: Likewise
+	* gcc.target/i386/interrupt-387-err-1.c: Likewise
+	* gcc.target/i386/isa-14.c: Likewise
+	* gcc.target/i386/pr44948-2b.c: Likewise
+	* gcc.target/i386/pr53425-1.c: Likewise
+	* gcc.target/i386/pr53425-2.c: Likewise
+	* gcc.target/i386/pr55247.c: Likewise
+	* gcc.target/i386/pr59644.c: Likewise
+	* gcc.target/i386/pr62120.c: Likewise
+	* gcc.target/i386/pr70467-1.c: Likewise
+	* gcc.target/i386/warn-vect-op-1.c: Likewise
+
+If -Wall, -Werror are used during compilation various test cases fail
+to compile.
+
+If SSE is disabled, be sure to -mfpmath=387 to resolve this.
+
+This patch removes the changes to Changelog from the original patch.
+This will help us avoid conflicts.
+
+Upstream-Status: Pending
+
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+---
+ gcc/testsuite/gcc.dg/pr56275.c                      | 2 +-
+ gcc/testsuite/gcc.dg/pr68306-2.c                    | 2 +-
+ gcc/testsuite/gcc.dg/pr68306-3.c                    | 2 +-
+ gcc/testsuite/gcc.dg/pr68306.c                      | 2 +-
+ gcc/testsuite/gcc.dg/pr69634.c                      | 2 +-
+ gcc/testsuite/gcc.target/i386/amd64-abi-1.c         | 2 +-
+ gcc/testsuite/gcc.target/i386/funcspec-6.c          | 1 +
+ gcc/testsuite/gcc.target/i386/interrupt-387-err-1.c | 2 +-
+ gcc/testsuite/gcc.target/i386/isa-14.c              | 2 +-
+ gcc/testsuite/gcc.target/i386/pr44948-2b.c          | 2 +-
+ gcc/testsuite/gcc.target/i386/pr53425-1.c           | 2 +-
+ gcc/testsuite/gcc.target/i386/pr53425-2.c           | 2 +-
+ gcc/testsuite/gcc.target/i386/pr55247.c             | 2 +-
+ gcc/testsuite/gcc.target/i386/pr59644.c             | 2 +-
+ gcc/testsuite/gcc.target/i386/pr62120.c             | 2 +-
+ gcc/testsuite/gcc.target/i386/pr70467-1.c           | 2 +-
+ gcc/testsuite/gcc.target/i386/warn-vect-op-1.c      | 2 +-
+ 17 files changed, 17 insertions(+), 16 deletions(-)
+
+diff --git a/gcc/testsuite/gcc.dg/pr56275.c b/gcc/testsuite/gcc.dg/pr56275.c
+index b901bb2b199..a4f6c95e1a1 100644
+--- a/gcc/testsuite/gcc.dg/pr56275.c
++++ b/gcc/testsuite/gcc.dg/pr56275.c
+@@ -1,6 +1,6 @@
+ /* { dg-do compile } */
+ /* { dg-options "-O2" } */
+-/* { dg-additional-options "-mno-sse" { target { i?86-*-* x86_64-*-* } } } */
++/* { dg-additional-options "-mno-sse -mfpmath=387" { target { i?86-*-* x86_64-*-* } } } */
+ 
+ typedef long long v2tw __attribute__ ((vector_size (2 * sizeof (long long))));
+ 
+diff --git a/gcc/testsuite/gcc.dg/pr68306-2.c b/gcc/testsuite/gcc.dg/pr68306-2.c
+index 4672ebe7987..2a368c484b6 100644
+--- a/gcc/testsuite/gcc.dg/pr68306-2.c
++++ b/gcc/testsuite/gcc.dg/pr68306-2.c
+@@ -1,6 +1,6 @@
+ /* { dg-do compile } */
+ /* { dg-options "-O3" } */
+-/* { dg-additional-options "-mno-sse -mno-mmx" { target i?86-*-* x86_64-*-* } } */
++/* { dg-additional-options "-mno-sse -mno-mmx -mfpmath=387" { target i?86-*-* x86_64-*-* } } */
+ 
+ struct {
+     int tz_minuteswest;
+diff --git a/gcc/testsuite/gcc.dg/pr68306-3.c b/gcc/testsuite/gcc.dg/pr68306-3.c
+index f5a8c102cf8..df3390c64c2 100644
+--- a/gcc/testsuite/gcc.dg/pr68306-3.c
++++ b/gcc/testsuite/gcc.dg/pr68306-3.c
+@@ -1,6 +1,6 @@
+ /* { dg-do compile } */
+ /* { dg-options "-O3" } */
+-/* { dg-additional-options "-mno-sse -mno-mmx" { target i?86-*-* x86_64-*-* } } */
++/* { dg-additional-options "-mno-sse -mno-mmx -mfpmath=387" { target i?86-*-* x86_64-*-* } } */
+ /* { dg-additional-options "-mno-altivec -mno-vsx" { target powerpc*-*-* } } */
+ 
+ extern void fn2();
+diff --git a/gcc/testsuite/gcc.dg/pr68306.c b/gcc/testsuite/gcc.dg/pr68306.c
+index 54e5b40f221..0813389e2c1 100644
+--- a/gcc/testsuite/gcc.dg/pr68306.c
++++ b/gcc/testsuite/gcc.dg/pr68306.c
+@@ -1,6 +1,6 @@
+ /* { dg-do compile } */
+ /* { dg-options "-O3" } */
+-/* { dg-additional-options "-mno-sse -mno-mmx" { target i?86-*-* x86_64-*-* } } */
++/* { dg-additional-options "-mno-sse -mno-mmx -mfpmath=387" { target i?86-*-* x86_64-*-* } } */
+ 
+ enum powerpc_pmc_type { PPC_PMC_IBM };
+ struct {
+diff --git a/gcc/testsuite/gcc.dg/pr69634.c b/gcc/testsuite/gcc.dg/pr69634.c
+index 60a56149463..bcc23f9ccd6 100644
+--- a/gcc/testsuite/gcc.dg/pr69634.c
++++ b/gcc/testsuite/gcc.dg/pr69634.c
+@@ -1,6 +1,6 @@
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -fno-dce -fschedule-insns -fno-tree-vrp -fcompare-debug -Wno-psabi" } */
+-/* { dg-additional-options "-mno-sse" { target i?86-*-* x86_64-*-* } } */
++/* { dg-additional-options "-mno-sse -mfpmath=387" { target i?86-*-* x86_64-*-* } } */
+ /* { dg-require-effective-target scheduling } */
+ 
+ typedef unsigned short u16;
+diff --git a/gcc/testsuite/gcc.target/i386/amd64-abi-1.c b/gcc/testsuite/gcc.target/i386/amd64-abi-1.c
+index 69fde57bf06..7f1f1c03edf 100644
+--- a/gcc/testsuite/gcc.target/i386/amd64-abi-1.c
++++ b/gcc/testsuite/gcc.target/i386/amd64-abi-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! ia32 } } } */
+-/* { dg-options "-mno-sse" } */
++/* { dg-options "-mno-sse -mfpmath=387" } */
+ /* { dg-additional-options "-mabi=sysv" { target *-*-mingw* } } */
+ 
+ double foo(void) { return 0; }	/* { dg-error "SSE disabled" } */
+diff --git a/gcc/testsuite/gcc.target/i386/funcspec-6.c b/gcc/testsuite/gcc.target/i386/funcspec-6.c
+index ea896b7ebfd..bf15569b826 100644
+--- a/gcc/testsuite/gcc.target/i386/funcspec-6.c
++++ b/gcc/testsuite/gcc.target/i386/funcspec-6.c
+@@ -1,6 +1,7 @@
+ /* Test whether all of the 64-bit function specific options are accepted
+    without error.  */
+ /* { dg-do compile { target { ! ia32 } } } */
++/* { dg-additional-options "-mfpmath=387" } */
+ 
+ #include "funcspec-56.inc"
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/interrupt-387-err-1.c b/gcc/testsuite/gcc.target/i386/interrupt-387-err-1.c
+index 3fbdc881dda..6b4d9d1252a 100644
+--- a/gcc/testsuite/gcc.target/i386/interrupt-387-err-1.c
++++ b/gcc/testsuite/gcc.target/i386/interrupt-387-err-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mgeneral-regs-only -mno-cld -mno-iamcu -m80387" } */
++/* { dg-options "-O2 -mgeneral-regs-only -mno-cld -mno-iamcu -m80387 -mfpmath=387" } */
+ 
+ typedef unsigned int uword_t __attribute__ ((mode (__word__)));
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/isa-14.c b/gcc/testsuite/gcc.target/i386/isa-14.c
+index 5d49e6e77fe..1de2db92bdd 100644
+--- a/gcc/testsuite/gcc.target/i386/isa-14.c
++++ b/gcc/testsuite/gcc.target/i386/isa-14.c
+@@ -1,5 +1,5 @@
+ /* { dg-do run } */
+-/* { dg-options "-march=x86-64 -msse4a -mfma4 -mno-sse" } */
++/* { dg-options "-march=x86-64 -msse4a -mfma4 -mno-sse -mfpmath=387" } */
+ 
+ extern void abort (void);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/pr44948-2b.c b/gcc/testsuite/gcc.target/i386/pr44948-2b.c
+index fa1769b62fb..f79fb12726f 100644
+--- a/gcc/testsuite/gcc.target/i386/pr44948-2b.c
++++ b/gcc/testsuite/gcc.target/i386/pr44948-2b.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O -mno-sse -Wno-psabi -mtune=generic" } */
++/* { dg-options "-O -mno-sse -Wno-psabi -mtune=generic -mfpmath=387" } */
+ 
+ struct A
+ { 
+diff --git a/gcc/testsuite/gcc.target/i386/pr53425-1.c b/gcc/testsuite/gcc.target/i386/pr53425-1.c
+index 2e89ff7d81d..6339bf6b736 100644
+--- a/gcc/testsuite/gcc.target/i386/pr53425-1.c
++++ b/gcc/testsuite/gcc.target/i386/pr53425-1.c
+@@ -1,6 +1,6 @@
+ /* PR target/53425 */
+ /* { dg-do compile { target { ! ia32 } } } */
+-/* { dg-options "-O2 -mno-sse" } */
++/* { dg-options "-O2 -mno-sse -mfpmath=387" } */
+ /* { dg-skip-if "no SSE vector" { x86_64-*-mingw* } } */
+ 
+ typedef double __v2df __attribute__ ((__vector_size__ (16)));
+diff --git a/gcc/testsuite/gcc.target/i386/pr53425-2.c b/gcc/testsuite/gcc.target/i386/pr53425-2.c
+index 61f6283dbe9..2c5a55f0ac3 100644
+--- a/gcc/testsuite/gcc.target/i386/pr53425-2.c
++++ b/gcc/testsuite/gcc.target/i386/pr53425-2.c
+@@ -1,6 +1,6 @@
+ /* PR target/53425 */
+ /* { dg-do compile { target { ! ia32 } } } */
+-/* { dg-options "-O2 -mno-sse" } */
++/* { dg-options "-O2 -mno-sse -mfpmath=387" } */
+ /* { dg-skip-if "no SSE vector" { x86_64-*-mingw* } } */
+ 
+ typedef float __v2sf __attribute__ ((__vector_size__ (8)));
+diff --git a/gcc/testsuite/gcc.target/i386/pr55247.c b/gcc/testsuite/gcc.target/i386/pr55247.c
+index 23366d0909d..9810e3abb76 100644
+--- a/gcc/testsuite/gcc.target/i386/pr55247.c
++++ b/gcc/testsuite/gcc.target/i386/pr55247.c
+@@ -1,6 +1,6 @@
+ /* { dg-do compile { target { ! ia32 } } } */
+ /* { dg-require-effective-target maybe_x32 } */
+-/* { dg-options "-O2 -mno-sse -mno-mmx -mx32 -maddress-mode=long" } */
++/* { dg-options "-O2 -mno-sse -mno-mmx -mx32 -maddress-mode=long -mfpmath=387" } */
+ 
+ typedef unsigned int uint32_t;
+ typedef uint32_t Elf32_Word;
+diff --git a/gcc/testsuite/gcc.target/i386/pr59644.c b/gcc/testsuite/gcc.target/i386/pr59644.c
+index 96006b3e338..4287e4538bf 100644
+--- a/gcc/testsuite/gcc.target/i386/pr59644.c
++++ b/gcc/testsuite/gcc.target/i386/pr59644.c
+@@ -1,6 +1,6 @@
+ /* PR target/59644 */
+ /* { dg-do run { target lp64 } } */
+-/* { dg-options "-O2 -ffreestanding -mno-sse -mpreferred-stack-boundary=3 -maccumulate-outgoing-args -mno-red-zone" } */
++/* { dg-options "-O2 -ffreestanding -mno-sse -mpreferred-stack-boundary=3 -maccumulate-outgoing-args -mno-red-zone -mfpmath=387" } */
+ 
+ /* This test uses __builtin_trap () instead of e.g. abort,
+    because due to -mpreferred-stack-boundary=3 it should not call
+diff --git a/gcc/testsuite/gcc.target/i386/pr62120.c b/gcc/testsuite/gcc.target/i386/pr62120.c
+index bfb8c4703eb..ed04cf181f3 100644
+--- a/gcc/testsuite/gcc.target/i386/pr62120.c
++++ b/gcc/testsuite/gcc.target/i386/pr62120.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-mno-sse" } */
++/* { dg-options "-mno-sse -mfpmath=387" } */
+ 
+ void foo ()
+ {
+diff --git a/gcc/testsuite/gcc.target/i386/pr70467-1.c b/gcc/testsuite/gcc.target/i386/pr70467-1.c
+index 4e112c88d07..bcfb396a68d 100644
+--- a/gcc/testsuite/gcc.target/i386/pr70467-1.c
++++ b/gcc/testsuite/gcc.target/i386/pr70467-1.c
+@@ -1,6 +1,6 @@
+ /* PR rtl-optimization/70467 */
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mno-sse" } */
++/* { dg-options "-O2 -mno-sse -mfpmath=387" } */
+ 
+ void foo (unsigned long long *);
+ 
+diff --git a/gcc/testsuite/gcc.target/i386/warn-vect-op-1.c b/gcc/testsuite/gcc.target/i386/warn-vect-op-1.c
+index 6cda1534311..26e37f5b8ba 100644
+--- a/gcc/testsuite/gcc.target/i386/warn-vect-op-1.c
++++ b/gcc/testsuite/gcc.target/i386/warn-vect-op-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! ia32 } } }  */
+-/* { dg-options "-mno-sse -Wvector-operation-performance" }  */
++/* { dg-options "-mno-sse -Wvector-operation-performance -mfpmath=387" }  */
+ #define vector(elcount, type)  \
+ __attribute__((vector_size((elcount)*sizeof(type)))) type
+ 
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-9.1/0037-Re-introduce-spe-commandline-options.patch b/meta/recipes-devtools/gcc/gcc-9.1/0037-Re-introduce-spe-commandline-options.patch
new file mode 100644
index 0000000000..251097e131
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-9.1/0037-Re-introduce-spe-commandline-options.patch
@@ -0,0 +1,41 @@
+From 49d3dbe240226206d09ff646499cd398cb60bd12 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 6 Jun 2018 12:10:22 -0700
+Subject: [PATCH 37/37] Re-introduce spe commandline options
+
+This should ensure that we keep accepting
+spe options
+
+Upstream-Status: Inappropriate [SPE port is removed from rs600 port]
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gcc/config/rs6000/rs6000.opt | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+diff --git a/gcc/config/rs6000/rs6000.opt b/gcc/config/rs6000/rs6000.opt
+index 2e90bf37747..ebd297da46b 100644
+--- a/gcc/config/rs6000/rs6000.opt
++++ b/gcc/config/rs6000/rs6000.opt
+@@ -345,6 +345,18 @@ mdebug=
+ Target RejectNegative Joined
+ -mdebug=	Enable debug output.
+ 
++mspe
++Target Var(rs6000_spe) Save
++Generate SPE SIMD instructions on E500.
++
++mabi=spe
++Target RejectNegative Var(rs6000_spe_abi) Save
++Use the SPE ABI extensions.
++
++mabi=no-spe
++Target RejectNegative Var(rs6000_spe_abi, 0)
++Do not use the SPE ABI extensions.
++
+ mabi=altivec
+ Target RejectNegative Var(rs6000_altivec_abi) Save
+ Use the AltiVec ABI extensions.
+-- 
+2.20.1
+
diff --git a/meta/recipes-devtools/gcc/gcc-cross-canadian_9.1.bb b/meta/recipes-devtools/gcc/gcc-cross-canadian_9.1.bb
new file mode 100644
index 0000000000..bf53c5cd78
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-cross-canadian_9.1.bb
@@ -0,0 +1,5 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require gcc-cross-canadian.inc
+
+
+
diff --git a/meta/recipes-devtools/gcc/gcc-cross_9.1.bb b/meta/recipes-devtools/gcc/gcc-cross_9.1.bb
new file mode 100644
index 0000000000..b43cca0c52
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-cross_9.1.bb
@@ -0,0 +1,3 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require gcc-cross.inc
+
diff --git a/meta/recipes-devtools/gcc/gcc-crosssdk_9.1.bb b/meta/recipes-devtools/gcc/gcc-crosssdk_9.1.bb
new file mode 100644
index 0000000000..40a6c4feff
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-crosssdk_9.1.bb
@@ -0,0 +1,2 @@
+require recipes-devtools/gcc/gcc-cross_${PV}.bb
+require gcc-crosssdk.inc
diff --git a/meta/recipes-devtools/gcc/gcc-runtime_9.1.bb b/meta/recipes-devtools/gcc/gcc-runtime_9.1.bb
new file mode 100644
index 0000000000..a1c7a76d0b
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-runtime_9.1.bb
@@ -0,0 +1,12 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require gcc-runtime.inc
+
+# Disable ifuncs for libatomic on arm conflicts -march/-mcpu
+EXTRA_OECONF_append_arm = " libat_cv_have_ifunc=no "
+
+FILES_libgomp-dev += "\
+    ${libdir}/gcc/${TARGET_SYS}/${BINV}/include/openacc.h \
+"
+
+# Building with thumb enabled on armv6t fails
+ARM_INSTRUCTION_SET_armv6 = "arm"
diff --git a/meta/recipes-devtools/gcc/gcc-sanitizers_9.1.bb b/meta/recipes-devtools/gcc/gcc-sanitizers_9.1.bb
new file mode 100644
index 0000000000..f3c7058114
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-sanitizers_9.1.bb
@@ -0,0 +1,7 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require gcc-sanitizers.inc
+
+# Building with thumb enabled on armv4t armv5t fails with
+# sanitizer_linux.s:5749: Error: lo register required -- `ldr ip,[sp],#8'
+ARM_INSTRUCTION_SET_armv4 = "arm"
+ARM_INSTRUCTION_SET_armv5 = "arm"
diff --git a/meta/recipes-devtools/gcc/gcc-source_9.1.bb b/meta/recipes-devtools/gcc/gcc-source_9.1.bb
new file mode 100644
index 0000000000..b890fa33ea
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-source_9.1.bb
@@ -0,0 +1,4 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require recipes-devtools/gcc/gcc-source.inc
+
+EXCLUDE_FROM_WORLD = "1"
diff --git a/meta/recipes-devtools/gcc/gcc_9.1.bb b/meta/recipes-devtools/gcc/gcc_9.1.bb
new file mode 100644
index 0000000000..7d93590588
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc_9.1.bb
@@ -0,0 +1,14 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require gcc-target.inc
+
+# Building with thumb enabled on armv4t armv5t fails with
+# | gcc-4.8.1-r0/gcc-4.8.1/gcc/cp/decl.c:7438:(.text.unlikely+0x2fa): relocation truncated to fit: R_ARM_THM_CALL against symbol `fancy_abort(char const*, int, char const*)' defined in .glue_7 section in linker stubs
+# | gcc-4.8.1-r0/gcc-4.8.1/gcc/cp/decl.c:7442:(.text.unlikely+0x318): additional relocation overflows omitted from the output
+ARM_INSTRUCTION_SET_armv4 = "arm"
+ARM_INSTRUCTION_SET_armv5 = "arm"
+
+ARMFPARCHEXT_armv6 = "${@'+fp' if d.getVar('TARGET_FPU') == 'hard' else ''}"
+ARMFPARCHEXT_armv7a = "${@'+fp' if d.getVar('TARGET_FPU') == 'hard' else ''}"
+ARMFPARCHEXT_armv7ve = "${@'+fp' if d.getVar('TARGET_FPU') == 'hard' else ''}"
+
+BBCLASSEXTEND = "nativesdk"
diff --git a/meta/recipes-devtools/gcc/libgcc-initial_9.1.bb b/meta/recipes-devtools/gcc/libgcc-initial_9.1.bb
new file mode 100644
index 0000000000..0c698c26ec
--- /dev/null
+++ b/meta/recipes-devtools/gcc/libgcc-initial_9.1.bb
@@ -0,0 +1,5 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require libgcc-initial.inc
+
+# Building with thumb enabled on armv6t fails
+ARM_INSTRUCTION_SET_armv6 = "arm"
diff --git a/meta/recipes-devtools/gcc/libgcc_9.1.bb b/meta/recipes-devtools/gcc/libgcc_9.1.bb
new file mode 100644
index 0000000000..ea210a1130
--- /dev/null
+++ b/meta/recipes-devtools/gcc/libgcc_9.1.bb
@@ -0,0 +1,5 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require libgcc.inc
+
+# Building with thumb enabled on armv6t fails
+ARM_INSTRUCTION_SET_armv6 = "arm"
diff --git a/meta/recipes-devtools/gcc/libgfortran_9.1.bb b/meta/recipes-devtools/gcc/libgfortran_9.1.bb
new file mode 100644
index 0000000000..71dd8b4bdc
--- /dev/null
+++ b/meta/recipes-devtools/gcc/libgfortran_9.1.bb
@@ -0,0 +1,3 @@
+require recipes-devtools/gcc/gcc-${PV}.inc
+require libgfortran.inc
+