1 files changed, 75 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.9/0056-define-default-cfa-register-mapping.patch b/meta/recipes-devtools/gcc/gcc-4.9/0056-define-default-cfa-register-mapping.patch
new file mode 100644
index 0000000000..3b6c94c492
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.9/0056-define-default-cfa-register-mapping.patch
@@ -0,0 +1,75 @@
+From c0235a33de8c4f78cce35b2a8c2035c83fe1bd14 Mon Sep 17 00:00:00 2001
+From: hainque <hainque@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 5 Dec 2014 17:01:42 +0000
+Subject: [PATCH] 2014-12-05  Olivier Hainque  <hainque@adacore.com>
+
+        gcc/
+        * defaults.h: (DWARF_REG_TO_UNWIND_COLUMN): Define default.
+        * dwarf2cfi.c (init_one_dwarf_reg_size): Honor
+        DWARF_REG_TO_UNWIND_COLUMN.
+
+        libgcc/
+        * unwind-dw2.c (DWARF_REG_TO_UNWIND_COLUMN): Remove default def,
+        now provided by defaults.h.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218429 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Backport [gcc 5.0]
+
+---
+ gcc/ChangeLog       | 6 ++++++
+ gcc/defaults.h      | 5 +++++
+ gcc/dwarf2cfi.c     | 3 ++-
+ libgcc/ChangeLog    | 5 +++++
+ libgcc/unwind-dw2.c | 4 ----
+ 5 files changed, 18 insertions(+), 5 deletions(-)
+
+Index: gcc-4.9.2/gcc/defaults.h
+===================================================================
+--- gcc-4.9.2.orig/gcc/defaults.h
++++ gcc-4.9.2/gcc/defaults.h
+@@ -438,6 +438,11 @@ see the files COPYING3 and COPYING.RUNTI
+ #define DWARF_FRAME_REGNUM(REG) DBX_REGISTER_NUMBER (REG)
+ #endif
+ 
++/* The mapping from dwarf CFA reg number to internal dwarf reg numbers.  */
++#ifndef DWARF_REG_TO_UNWIND_COLUMN
++#define DWARF_REG_TO_UNWIND_COLUMN(REGNO) (REGNO)
++#endif
++
+ /* Map register numbers held in the call frame info that gcc has
+    collected using DWARF_FRAME_REGNUM to those that should be output in
+    .debug_frame and .eh_frame.  */
+Index: gcc-4.9.2/gcc/dwarf2cfi.c
+===================================================================
+--- gcc-4.9.2.orig/gcc/dwarf2cfi.c
++++ gcc-4.9.2/gcc/dwarf2cfi.c
+@@ -280,8 +280,9 @@ void init_one_dwarf_reg_size (int regno,
+ {
+   const unsigned int dnum = DWARF_FRAME_REGNUM (regno);
+   const unsigned int rnum = DWARF2_FRAME_REG_OUT (dnum, 1);
++  const unsigned int dcol = DWARF_REG_TO_UNWIND_COLUMN (rnum);
+ 
+-  const HOST_WIDE_INT slotoffset = rnum * GET_MODE_SIZE (slotmode);
++  const HOST_WIDE_INT slotoffset = dcol * GET_MODE_SIZE (slotmode);
+   const HOST_WIDE_INT regsize = GET_MODE_SIZE (regmode);
+ 
+   init_state->processed_regno[regno] = true;
+Index: gcc-4.9.2/libgcc/unwind-dw2.c
+===================================================================
+--- gcc-4.9.2.orig/libgcc/unwind-dw2.c
++++ gcc-4.9.2/libgcc/unwind-dw2.c
+@@ -55,10 +55,6 @@
+ #define PRE_GCC3_DWARF_FRAME_REGISTERS DWARF_FRAME_REGISTERS
+ #endif
+ 
+-#ifndef DWARF_REG_TO_UNWIND_COLUMN
+-#define DWARF_REG_TO_UNWIND_COLUMN(REGNO) (REGNO)
+-#endif
+-
+ /* ??? For the public function interfaces, we tend to gcc_assert that the
+    column numbers are in range.  For the dwarf2 unwind info this does happen,
+    although so far in a case that doesn't actually matter.