gcc: Upgrade 7.2 -> 7.3

The static PIE patch was updated by Juro Bystricky <juro.bystricky@intel.com>
to work with gcc 7.3.

This update from the stable gcc 7 branch includes the retpoline
functionality which is useful to assist with recent security issues.

Two backported patches were dropped as they're included in 7.3.

(From OE-Core rev: a4c1ede6876ad6b84ab2b3bece14bf0afdc9d6b7)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-7.3/0023-libtool.patch b/meta/recipes-devtools/gcc/gcc-7.3/0023-libtool.patch
new file mode 100644
index 0000000000..27dfb1fdd1
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-7.3/0023-libtool.patch
@@ -0,0 +1,42 @@
+From e79a4f8169e836c8deabca5a45884cfe11d07847 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 23/47] 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 9503ec85d70..0121fba707f 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
+-- 
+2.12.2
+