gcc6: Backport few more patches

Backported series of patches from https://github.com/hjl-tools/gcc.git
branch /hjl/indirect/gcc-6-branch/master which contains
an IA patch series for security related issues

(From OE-Core rev: 8283b4ee5290843b1033ca496759fce6229b8f91)

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-6.4/backport/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch b/meta/recipes-devtools/gcc/gcc-6.4/backport/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch
new file mode 100644
index 0000000000..080d741983
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch
@@ -0,0 +1,46 @@
+From c4300d9ad683e693c90d02d4f1b13183bf2d4acc Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 2 Feb 2018 16:47:02 +0000
+Subject: [PATCH 10/12] i386: Pass INVALID_REGNUM as invalid register number
+
+        Backport from mainline
+        * config/i386/i386.c (ix86_output_function_return): Pass
+        INVALID_REGNUM, instead of -1, as invalid register number to
+        indirect_thunk_name and output_indirect_thunk.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257341 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
+
+---
+ gcc/config/i386/i386.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 4012657..66502ee 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -28056,7 +28056,8 @@ ix86_output_function_return (bool long_p)
+        {
+          bool need_thunk = (cfun->machine->function_return_type
+                             == indirect_branch_thunk);
+-         indirect_thunk_name (thunk_name, -1, need_bnd_p, true);
++         indirect_thunk_name (thunk_name, INVALID_REGNUM, need_bnd_p,
++                              true);
+          if (need_bnd_p)
+            {
+              indirect_thunk_bnd_needed |= need_thunk;
+@@ -28069,7 +28070,7 @@ ix86_output_function_return (bool long_p)
+            }
+        }
+       else
+-       output_indirect_thunk (need_bnd_p, -1);
++       output_indirect_thunk (need_bnd_p, INVALID_REGNUM);
+ 
+       return "";
+     }
+-- 
+2.7.4
+