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
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1 files changed, 125 insertions, 0 deletions

diff --git a/gcc/config/arm/bpabi.h b/gcc/config/arm/bpabi.h
new file mode 100644
index 000000000..7b5ee6231
--- /dev/null
+++ b/gcc/config/arm/bpabi.h
@@ -0,0 +1,125 @@
+/* Configuration file for ARM BPABI targets.
+   Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
+   Contributed by CodeSourcery, LLC   
+
+   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/>.  */
+
+/* Use the AAPCS ABI by default.  */
+#define ARM_DEFAULT_ABI ARM_ABI_AAPCS
+
+/* Assume that AAPCS ABIs should adhere to the full BPABI.  */ 
+#define TARGET_BPABI (TARGET_AAPCS_BASED)
+
+/* BPABI targets use EABI frame unwinding tables.  */
+#undef ARM_UNWIND_INFO
+#define ARM_UNWIND_INFO 1
+
+/* Section 4.1 of the AAPCS requires the use of VFP format.  */
+#undef  FPUTYPE_DEFAULT
+#define FPUTYPE_DEFAULT "vfp"
+
+/* 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
+#else
+#define TARGET_ENDIAN_DEFAULT 0
+#endif
+
+/* EABI targets should enable interworking by default.  */
+#undef  TARGET_DEFAULT
+#define TARGET_DEFAULT (MASK_INTERWORK | TARGET_ENDIAN_DEFAULT)
+
+/* The ARM BPABI functions return a boolean; they use no special
+   calling convention.  */
+#define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) TARGET_BPABI
+
+/* The BPABI integer comparison routines return { -1, 0, 1 }.  */
+#define TARGET_LIB_INT_CMP_BIASED !TARGET_BPABI
+
+#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
+  "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
+
+#define BE8_LINK_SPEC " %{mbig-endian:%{march=armv7-a|mcpu=cortex-a5"\
+  "|mcpu=cortex-a8|mcpu=cortex-a9|mcpu=cortex-a15:%{!r:--be8}}}"
+
+/* Tell the assembler to build BPABI binaries.  */
+#undef  SUBTARGET_EXTRA_ASM_SPEC
+#define SUBTARGET_EXTRA_ASM_SPEC \
+  "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=5}" TARGET_FIX_V4BX_SPEC
+
+#ifndef SUBTARGET_EXTRA_LINK_SPEC
+#define SUBTARGET_EXTRA_LINK_SPEC ""
+#endif
+
+/* The generic link spec in elf.h does not support shared libraries.  */
+#define BPABI_LINK_SPEC \
+  "%{mbig-endian:-EB} %{mlittle-endian:-EL} "		\
+  "%{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic} "	\
+  "-X" SUBTARGET_EXTRA_LINK_SPEC TARGET_FIX_V4BX_SPEC BE8_LINK_SPEC
+
+#undef  LINK_SPEC
+#define LINK_SPEC BPABI_LINK_SPEC
+
+/* The BPABI requires that we always use an out-of-line implementation
+   of RTTI comparison, even if the target supports weak symbols,
+   because the same object file might be used on a target that does
+   not support merging symbols across DLL boundaries.  This macro is
+   broken out separately so that it can be used within
+   TARGET_OS_CPP_BUILTINS in configuration files for systems based on
+   the BPABI.  */
+#define TARGET_BPABI_CPP_BUILTINS()			\
+  do							\
+    {							\
+      builtin_define ("__GXX_TYPEINFO_EQUALITY_INLINE=0");	\
+    }							\
+  while (false)
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() \
+  TARGET_BPABI_CPP_BUILTINS()
+
+/* The BPABI specifies the use of .{init,fini}_array.  Therefore, we
+   do not want GCC to put anything into the .{init,fini} sections.  */
+#undef INIT_SECTION_ASM_OP
+#undef FINI_SECTION_ASM_OP
+#define INIT_ARRAY_SECTION_ASM_OP ARM_EABI_CTORS_SECTION_OP
+#define FINI_ARRAY_SECTION_ASM_OP ARM_EABI_DTORS_SECTION_OP
+
+/* The legacy _mcount implementation assumes r11 points to a
+    4-word APCS frame.  This is generally not true for EABI targets,
+    particularly not in Thumb mode.  We assume the mcount
+    implementation does not require a counter variable (No Counter).
+    Note that __gnu_mcount_nc will be entered with a misaligned stack.
+    This is OK because it uses a special calling convention anyway.  */
+
+#undef  NO_PROFILE_COUNTERS
+#define NO_PROFILE_COUNTERS 1
+#undef  ARM_FUNCTION_PROFILER
+#define ARM_FUNCTION_PROFILER(STREAM, LABELNO)  			\
+{									\
+  fprintf (STREAM, "\tpush\t{lr}\n");					\
+  fprintf (STREAM, "\tbl\t__gnu_mcount_nc\n");				\
+}
+
+#undef SUBTARGET_FRAME_POINTER_REQUIRED
+#define SUBTARGET_FRAME_POINTER_REQUIRED 0
+
+/* __gnu_mcount_nc restores the original LR value before returning.  Ensure
+   that there is no unnecessary hook set up.  */
+#undef PROFILE_HOOK