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, 54 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-7.3/0031-gcc-4.8-won-t-build-with-disable-dependency-tracking.patch b/meta/recipes-devtools/gcc/gcc-7.3/0031-gcc-4.8-won-t-build-with-disable-dependency-tracking.patch
new file mode 100644
index 0000000000..0184010f04
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-7.3/0031-gcc-4.8-won-t-build-with-disable-dependency-tracking.patch
@@ -0,0 +1,54 @@
+From c7b4d957edda955fbe405fd5295846614529f517 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 31/47] 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 d731406fdbd..2fafc72d2e7 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 f6eeab312ea..3f06a894058 100644
+--- a/libatomic/Makefile.in
++++ b/libatomic/Makefile.in
+@@ -331,7 +331,8 @@ 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
+-- 
+2.12.2
+