gcc-4.6.0: Bring in patches from FSF 4.6 branch

This brings in new patches from 4.6 release branch
updates the comment section of existing branch to not
contain patch numbers.

Tested build on qemu for arm ppc mips x86 and x86_64

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0313-PR-debug-49032.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0313-PR-debug-49032.patch
new file mode 100644
index 000000000..6400d8749
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0313-PR-debug-49032.patch
@@ -0,0 +1,90 @@
+From 62593aed2e6b228ae5b85fb9721b45cc92cce894 Mon Sep 17 00:00:00 2001
+From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 23 May 2011 18:12:34 +0000
+Subject: [PATCH] 	PR debug/49032
+ 	* dbxout.c: Include cgraph.h.
+ 	(dbxout_expand_expr): If a VAR_DECL is TREE_STATIC, not written
+ 	and without value expr, return NULL if no varpool node exists for
+ 	it or if it is not needed.
+ 	* Makefile.in (dbxout.o): Depend on $(CGRAPH_H).
+
+	* gcc.dg/debug/pr49032.c: New test.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174084 138bc75d-0d04-0410-961f-82ee72b054a4
+
+index 792ca6c..60dcee5 100644
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -2921,7 +2921,8 @@ optabs.o : optabs.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
+ dbxout.o : dbxout.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) \
+    $(RTL_H) $(FLAGS_H) $(REGS_H) debug.h $(TM_P_H) $(TARGET_H) $(FUNCTION_H) \
+    langhooks.h insn-config.h reload.h $(GSTAB_H) xcoffout.h output.h dbxout.h \
+-   toplev.h $(DIAGNOSTIC_CORE_H) $(GGC_H) $(OBSTACK_H) $(EXPR_H) gt-dbxout.h
++   toplev.h $(DIAGNOSTIC_CORE_H) $(GGC_H) $(OBSTACK_H) $(EXPR_H) $(CGRAPH_H) \
++   gt-dbxout.h
+ debug.o : debug.c debug.h $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H)
+ sdbout.o : sdbout.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) debug.h \
+    $(TREE_H) $(GGC_H) $(RTL_H) $(REGS_H) $(FLAGS_H) insn-config.h \
+diff --git a/gcc/dbxout.c b/gcc/dbxout.c
+index 3b0cf34..836030d 100644
+--- a/gcc/dbxout.c
++++ b/gcc/dbxout.c
+@@ -1,7 +1,7 @@
+ /* Output dbx-format symbol table information from GNU compiler.
+    Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+-   Free Software Foundation, Inc.
++   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
++   2011 Free Software Foundation, Inc.
+ 
+ This file is part of GCC.
+ 
+@@ -91,6 +91,7 @@ along with GCC; see the file COPYING3.  If not see
+ #include "langhooks.h"
+ #include "obstack.h"
+ #include "expr.h"
++#include "cgraph.h"
+ 
+ #ifdef XCOFF_DEBUGGING_INFO
+ #include "xcoffout.h"
+@@ -2393,6 +2394,20 @@ dbxout_expand_expr (tree expr)
+ 	 disable debug info for these variables.  */
+       if (!targetm.have_tls && DECL_THREAD_LOCAL_P (expr))
+ 	return NULL;
++      if (TREE_STATIC (expr)
++	  && !TREE_ASM_WRITTEN (expr)
++	  && !DECL_HAS_VALUE_EXPR_P (expr)
++	  && !TREE_PUBLIC (expr)
++	  && DECL_RTL_SET_P (expr)
++	  && MEM_P (DECL_RTL (expr)))
++	{
++	  /* If this is a var that might not be actually output,
++	     return NULL, otherwise stabs might reference an undefined
++	     symbol.  */
++	  struct varpool_node *node = varpool_get_node (expr);
++	  if (!node || !node->needed)
++	    return NULL;
++	}
+       /* FALLTHRU */
+ 
+     case PARM_DECL:
+new file mode 100644
+index 0000000..3985040
+--- /dev/null
++++ b/gcc/testsuite/gcc.dg/debug/pr49032.c
+@@ -0,0 +1,11 @@
++/* PR debug/49032 */
++/* { dg-do link } */
++
++static int s = 42;
++
++int
++main ()
++{
++  int *l[18] = { &s, &s, &s, &s, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
++  return 0;
++}
+-- 
+1.7.0.4
+