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: 99b1998157ecbd2bc8ac7c24fae859d48b152f58)

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

1 files changed, 29 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-7.3/0045-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch b/meta/recipes-devtools/gcc/gcc-7.3/0045-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch
new file mode 100644
index 0000000000..3aa038c913
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-7.3/0045-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch
@@ -0,0 +1,29 @@
+From 92beb883ab57a23a35ba76c496bc1f4cabb1690e 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 45/47] 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 76be7710960..a1ee2ee26ed 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) && \
+-- 
+2.12.2
+