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, 106 insertions, 0 deletions

diff --git a/gcc/config/i386/x86-64.h b/gcc/config/i386/x86-64.h
new file mode 100644
index 000000000..b85dab9cd
--- /dev/null
+++ b/gcc/config/i386/x86-64.h
@@ -0,0 +1,106 @@
+/* OS independent definitions for AMD x86-64.
+   Copyright (C) 2001, 2005, 2007, 2009, 2010, 2011
+   Free Software Foundation, Inc.
+   Contributed by Bo Thorsen <bo@suse.de>.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#undef ASM_COMMENT_START
+#define ASM_COMMENT_START "#"
+
+#undef DBX_REGISTER_NUMBER
+#define DBX_REGISTER_NUMBER(n) \
+  (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
+
+/* Output assembler code to FILE to call the profiler.  */
+#define NO_PROFILE_COUNTERS 1
+
+#undef MCOUNT_NAME
+#define MCOUNT_NAME "mcount"
+
+#undef SIZE_TYPE
+#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+#undef ASM_SPEC
+#define ASM_SPEC "%{m32:--32} %{m64:--64}"
+
+#undef ASM_OUTPUT_ALIGNED_BSS
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+  x86_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
+
+#undef  ASM_OUTPUT_ALIGNED_COMMON
+#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)		\
+  x86_elf_aligned_common (FILE, NAME, SIZE, ALIGN);
+
+/* This is used to align code labels according to Intel recommendations.  */
+
+#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
+#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP)			\
+  do {									\
+    if ((LOG) != 0) {							\
+      if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG));	\
+      else {								\
+	fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));	\
+	/* Make sure that we have at least 8 byte alignment if > 8 byte \
+	   alignment is preferred.  */					\
+	if ((LOG) > 3							\
+	    && (1 << (LOG)) > ((MAX_SKIP) + 1)				\
+	    && (MAX_SKIP) >= 7)						\
+	  fputs ("\t.p2align 3\n", (FILE));				\
+      }									\
+    }									\
+  } while (0)
+#undef  ASM_OUTPUT_MAX_SKIP_PAD
+#define ASM_OUTPUT_MAX_SKIP_PAD(FILE, LOG, MAX_SKIP)			\
+  if ((LOG) != 0)							\
+    {									\
+      if ((MAX_SKIP) == 0)						\
+        fprintf ((FILE), "\t.p2align %d\n", (LOG));			\
+      else								\
+        fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));	\
+    }
+#endif
+
+
+/* i386 System V Release 4 uses DWARF debugging info.
+   x86-64 ABI specifies DWARF2.  */
+
+#define DWARF2_DEBUGGING_INFO 1
+#define DWARF2_UNWIND_INFO 1
+
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+
+#undef TARGET_ASM_SELECT_SECTION
+#define TARGET_ASM_SELECT_SECTION  x86_64_elf_select_section
+
+#undef TARGET_ASM_UNIQUE_SECTION
+#define TARGET_ASM_UNIQUE_SECTION  x86_64_elf_unique_section