From 935475158f45b9c55a54647543c0402b4b3043ae Mon Sep 17 00:00:00 2001
From: jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sun, 19 Aug 2012 15:11:40 +0000
Subject: [PATCH] 	* crtstuff.c (USE_PT_GNU_EH_FRAME): Define for
 systems using glibc 	even if inhibit_libc.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@190517 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libgcc/ChangeLog  |    5 +++++
 libgcc/crtstuff.c |   16 +++++++++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

Upstream-Status: Backport

-Khem 05-Sep-2012
Index: gcc-4_7-branch/libgcc/crtstuff.c
===================================================================
--- gcc-4_7-branch.orig/libgcc/crtstuff.c	2012-08-21 22:33:20.000000000 -0700
+++ gcc-4_7-branch/libgcc/crtstuff.c	2012-09-05 17:28:49.248994968 -0700
@@ -1,7 +1,7 @@
 /* Specialized bits of code needed to support construction and
    destruction of file-scope objects in C++ code.
    Copyright (C) 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
-   2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011
+   2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011, 2012
    Free Software Foundation, Inc.
    Contributed by Ron Guilmette (rfg@monkeys.com).
 
@@ -113,6 +113,20 @@
 #  define USE_PT_GNU_EH_FRAME
 # endif
 #endif
+
+#if defined(OBJECT_FORMAT_ELF) \
+    && !defined(OBJECT_FORMAT_FLAT) \
+    && defined(HAVE_LD_EH_FRAME_HDR) \
+    && !defined(CRTSTUFFT_O) \
+    && defined(inhibit_libc) \
+    && (defined(__GLIBC__) || defined(__gnu_linux__) || defined(__GNU__))
+/* On systems using glibc, an inhibit_libc build of libgcc is only
+   part of a bootstrap process.  Build the same crt*.o as would be
+   built with headers present, so that it is not necessary to build
+   glibc more than once for the bootstrap to converge.  */
+# define USE_PT_GNU_EH_FRAME
+#endif
+
 #if defined(EH_FRAME_SECTION_NAME) && !defined(USE_PT_GNU_EH_FRAME)
 # define USE_EH_FRAME_REGISTRY
 #endif
