obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 120 insertions, 0 deletions

diff --git a/gcc/config/arm/linux-elf.h b/gcc/config/arm/linux-elf.h
new file mode 100644
index 000000000..81d27bb72
--- /dev/null
+++ b/gcc/config/arm/linux-elf.h
@@ -0,0 +1,120 @@
+/* Definitions for ARM running Linux-based GNU systems using ELF
+   Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+   2005, 2006, 2007, 2008, 2009, 2010, 2011
+   Free Software Foundation, Inc.
+   Contributed by Philip Blundell <philb@gnu.org>
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+   License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+/* elfos.h should have already been included.  Now just override
+   any conflicting definitions and add any extras.  */
+
+/* Run-time Target Specification.  */
+#undef  TARGET_VERSION
+#define TARGET_VERSION  fputs (" (ARM GNU/Linux with ELF)", stderr);
+
+#undef  TARGET_DEFAULT_FLOAT_ABI
+#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
+
+/* TARGET_BIG_ENDIAN_DEFAULT is set in
+   config.gcc for big endian configurations.  */
+#if TARGET_BIG_ENDIAN_DEFAULT
+#define TARGET_ENDIAN_DEFAULT    MASK_BIG_END
+#define TARGET_ENDIAN_OPTION     "mbig-endian"
+#define TARGET_LINKER_EMULATION  "armelfb_linux"
+#else
+#define TARGET_ENDIAN_DEFAULT    0
+#define TARGET_ENDIAN_OPTION     "mlittle-endian"
+#define TARGET_LINKER_EMULATION  "armelf_linux"
+#endif
+
+#undef  TARGET_DEFAULT
+#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
+
+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
+
+#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
+
+#undef  MULTILIB_DEFAULTS
+#define MULTILIB_DEFAULTS \
+	{ "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
+
+/* Now we define the strings used to build the spec file.  */
+#undef  LIB_SPEC
+#define LIB_SPEC \
+  "%{pthread:-lpthread} \
+   %{shared:-lc} \
+   %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+
+#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
+
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+
+#define LINUX_TARGET_LINK_SPEC  "%{h*} \
+   %{static:-Bstatic} \
+   %{shared:-shared} \
+   %{symbolic:-Bsymbolic} \
+   %{rdynamic:-export-dynamic} \
+   -dynamic-linker " LINUX_DYNAMIC_LINKER " \
+   -X \
+   %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
+   SUBTARGET_EXTRA_LINK_SPEC
+
+#undef  LINK_SPEC
+#define LINK_SPEC LINUX_TARGET_LINK_SPEC
+
+#define TARGET_OS_CPP_BUILTINS()		\
+  do						\
+    {						\
+	LINUX_TARGET_OS_CPP_BUILTINS();		\
+    }						\
+  while (0)
+
+/* This is how we tell the assembler that two symbols have the same value.  */
+#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
+  do					   \
+    {					   \
+      assemble_name (FILE, NAME1); 	   \
+      fputs (" = ", FILE);		   \
+      assemble_name (FILE, NAME2);	   \
+      fputc ('\n', FILE);		   \
+    }					   \
+  while (0)
+
+/* NWFPE always understands FPA instructions.  */
+#undef  FPUTYPE_DEFAULT
+#define FPUTYPE_DEFAULT "fpe3"
+
+/* Call the function profiler with a given profile label.  */
+#undef  ARM_FUNCTION_PROFILER
+#define ARM_FUNCTION_PROFILER(STREAM, LABELNO)  			\
+{									\
+  fprintf (STREAM, "\tbl\tmcount%s\n",					\
+	   (TARGET_ARM && NEED_PLT_RELOC) ? "(PLT)" : "");		\
+}
+
+/* The GNU/Linux profiler clobbers the link register.  Make sure the
+   prologue knows to save it.  */
+#define PROFILE_HOOK(X)						\
+  emit_clobber (gen_rtx_REG (SImode, LR_REGNUM))
+
+/* The GNU/Linux profiler needs a frame pointer.  */
+#define SUBTARGET_FRAME_POINTER_REQUIRED crtl->profile
+
+/* Add .note.GNU-stack.  */
+#undef NEED_INDICATE_EXEC_STACK
+#define NEED_INDICATE_EXEC_STACK	1