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, 135 insertions, 0 deletions

diff --git a/gcc/config/mips/sde.h b/gcc/config/mips/sde.h
new file mode 100644
index 000000000..7194c1e54
--- /dev/null
+++ b/gcc/config/mips/sde.h
@@ -0,0 +1,135 @@
+/* Definitions of target machine for GNU compiler.
+   MIPS SDE version.
+   Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010, 2011
+   Free Software Foundation, Inc.
+
+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/>.  */
+
+#undef DRIVER_SELF_SPECS
+#define DRIVER_SELF_SPECS						\
+  /* Make sure a -mips option is present.  This helps us to pick	\
+     the right multilib, and also makes the later specs easier		\
+     to write.  */							\
+  MIPS_ISA_LEVEL_SPEC,							\
+									\
+  /* Infer the default float setting from -march.  */			\
+  MIPS_ARCH_FLOAT_SPEC,							\
+									\
+  /* If no ABI option is specified, infer one from the ISA level	\
+     or -mgp setting.  */						\
+  "%{!mabi=*: %{" MIPS_32BIT_OPTION_SPEC ": -mabi=32;: -mabi=n32}}",	\
+									\
+  /* Remove a redundant -mfp64 for -mabi=n32; we want the !mfp64	\
+     multilibs.  There's no need to check whether the architecture	\
+     is 64-bit; cc1 will complain if it isn't.  */			\
+  "%{mabi=n32: %<mfp64}",						\
+									\
+  /* Make sure that an endian option is always present.  This makes	\
+     things like LINK_SPEC easier to write.  */				\
+  "%{!EB:%{!EL:%(endian_spec)}}",					\
+									\
+  /* Configuration-independent MIPS rules.  */				\
+  BASE_DRIVER_SELF_SPECS				
+
+/* Use trap rather than break for all but MIPS I ISA.  Force -no-mips16,
+   so that MIPS16 assembler code requires an explicit ".set mips16".
+   Very little hand-written MIPS16 assembler exists, and some build
+   systems expect code to be assembled as non-MIPS16 even if the
+   prevailing compiler flags select -mips16.  */
+#undef SUBTARGET_ASM_SPEC
+#define SUBTARGET_ASM_SPEC "\
+%{!mips1:--trap} \
+%{mips16:-no-mips16}"
+
+#undef LINK_SPEC
+#define LINK_SPEC "\
+%(endian_spec) \
+%{G*} %{mips1} %{mips2} %{mips3} %{mips4} %{mips32*} %{mips64*} \
+%{shared} \
+%{mabi=n32:-melf32%{EB:b}%{EL:l}tsmipn32} \
+%{mabi=64:-melf64%{EB:b}%{EL:l}tsmip} \
+%{mabi=32:-melf32%{EB:b}%{EL:l}tsmip}"
+
+#undef DEFAULT_SIGNED_CHAR
+#define DEFAULT_SIGNED_CHAR 0
+
+/* SDE-MIPS won't ever support SDB debugging info.  */
+#undef SDB_DEBUGGING_INFO
+
+/* Describe how we implement __builtin_eh_return.  */
+
+/* At the moment, nothing appears to use more than 2 EH data registers.
+   The chosen registers must not clash with the return register ($2),
+   EH_RETURN_STACKADJ ($3), or MIPS_EPILOGUE_TEMP ($5), and they must
+   be general MIPS16 registers.  Pick $6 and $7.  */
+#undef EH_RETURN_DATA_REGNO
+#define EH_RETURN_DATA_REGNO(N) \
+  ((N) < 2 ? 7 - (N) : INVALID_REGNUM)
+
+/* Use $5 as a temporary for both MIPS16 and non-MIPS16.  */
+#undef MIPS_EPILOGUE_TEMP_REGNUM
+#define MIPS_EPILOGUE_TEMP_REGNUM \
+  (cfun->machine->interrupt_handler_p ? K0_REG_NUM : GP_REG_FIRST + 5)
+
+/* Using long will always be right for size_t and ptrdiff_t, since
+   sizeof(long) must equal sizeof(void *), following from the setting
+   of the -mlong64 option.  */
+#undef SIZE_TYPE
+#define SIZE_TYPE "long unsigned int"
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "long int"
+
+/* Use standard ELF-style local labels (not '$' as on early Irix).  */
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+
+/* Use periods rather than dollar signs in special g++ assembler names.  */
+#define NO_DOLLAR_IN_LABEL
+
+/* Attach a special .ident directive to the end of the file to identify
+   the version of GCC which compiled this code.  */
+#undef IDENT_ASM_OP
+#define IDENT_ASM_OP "\t.ident\t"
+
+/* Output #ident string into the ELF .comment section, so it doesn't
+   form part of the load image, and so that it can be stripped.  */
+#undef ASM_OUTPUT_IDENT
+#define ASM_OUTPUT_IDENT(STREAM, STRING) \
+  fprintf (STREAM, "%s\"%s\"\n", IDENT_ASM_OP, STRING);
+
+/* Currently we don't support 128bit long doubles, so for now we force
+   n32 to be 64bit.  */
+#undef LONG_DOUBLE_TYPE_SIZE
+#define LONG_DOUBLE_TYPE_SIZE 64
+
+#ifdef IN_LIBGCC2
+#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
+#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
+#endif
+
+/* Force all .init and .fini entries to be 32-bit, not mips16, so that
+   in a mixed environment they are all the same mode. The crti.asm and
+   crtn.asm files will also be compiled as 32-bit due to the
+   -no-mips16 flag in SUBTARGET_ASM_SPEC above. */
+#undef CRT_CALL_STATIC_FUNCTION
+#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
+   asm (SECTION_OP "\n\
+	.set push\n\
+	.set nomips16\n\
+	jal " USER_LABEL_PREFIX #FUNC "\n\
+	.set pop\n\
+	" TEXT_SECTION_ASM_OP);