add a gcc variant based on gcc 4.3.3 with codesourcery enhancements

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18059 3c298f89-4303-0410-b956-a3cf2f4a3e73

toolchain/gcc/Config.in

@@ -39,6 +39,10 @@ if !LINUX_2_4
 
 	config GCC_VERSION_LLVM
 		bool "llvm-gcc 4.2"
+
+	config GCC_VERSION_4_3_3_CS
+		bool "gcc 4.3.3 with CodeSourcery enhancements"
+
 endif
 
 endchoice

toolchain/gcc/Config.version

@@ -4,6 +4,7 @@ config GCC_VERSION
 	default "4.1.2"     if GCC_VERSION_4_1_2
 	default "4.2.4"     if GCC_VERSION_4_2_4
 	default "4.3.3"     if GCC_VERSION_4_3_3
+	default "4.3.3+cs"     if GCC_VERSION_4_3_3_CS
 	default "4.3.4"     if GCC_VERSION_4_3_4
 	default "4.4.0"     if GCC_VERSION_4_4_0
 	default "4.4.1"	    if GCC_VERSION_4_4_1
@@ -37,6 +38,7 @@ config GCC_VERSION_4_2
 config GCC_VERSION_4_3
 	bool
 	default y	if GCC_VERSION_4_3_3
+	default y	if GCC_VERSION_4_3_3_CS
 	default y	if GCC_VERSION_4_3_4
 
 config GCC_VERSION_4_4

toolchain/gcc/Makefile

@@ -21,15 +21,15 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gcc
-PKG_VERSION:=$(call qstrip,$(CONFIG_GCC_VERSION))
+GCC_VERSION:=$(call qstrip,$(CONFIG_GCC_VERSION))
-GCC_VERSION:=$(PKG_VERSION)
+PKG_VERSION:=$(firstword $(subst +, ,$(GCC_VERSION)))
 GCC_DIR:=$(PKG_NAME)-$(PKG_VERSION)
 
 ifdef CONFIG_GCC_VERSION_LLVM
   PKG_SOURCE_VERSION:=c98c494b72ff875884c0c7286be67f16f9f6d7ab
   PKG_REV:=83504
   GCC_DIR:=llvm-gcc-4.2-r$(PKG_REV)
-  GCC_VERSION:=4.2.1
+  PKG_VERSION:=4.2.1
   PKG_SOURCE:=$(GCC_DIR).tar.gz
   PKG_SOURCE_PROTO:=git
   PKG_SOURCE_URL:=git://repo.or.cz/llvm-gcc-4.2.git
@@ -56,7 +56,7 @@ else
   endif
 endif
 
-PATCH_DIR=./patches/$(PKG_VERSION)
+PATCH_DIR=./patches/$(GCC_VERSION)
 
 include $(INCLUDE_DIR)/toolchain-build.mk
 
@@ -85,7 +85,8 @@ GCC_CONFIGURE:= \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
 		$(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
 		$(if $(CONFIG_mips64)$(CONFIG_mips64el),--with-arch=mips64 --with-abi=64) \
-		$(if $(CONFIG_GCC_VERSION_LLVM),--enable-llvm=$(BUILD_DIR_BASE)/host/llvm)
+		$(if $(CONFIG_GCC_VERSION_LLVM),--enable-llvm=$(BUILD_DIR_BASE)/host/llvm) \
+		$(if $(CONFIG_GCC_VERSION_4_3_3_CS),--enable-poison-system-directories)
 
 ifneq ($(CONFIG_GCC_VERSION_4_3)$(CONFIG_GCC_VERSION_4_4),)
   GCC_BUILD_TARGET_LIBGCC:=y
@@ -191,7 +192,7 @@ define Stage1/Install
 		$(if $(GCC_BUILD_TARGET_LIBGCC),install-target-libgcc)
 	
 	# XXX: glibc insists on linking against libgcc_eh
-	( cd $(TOOLCHAIN_DIR)/usr/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(GCC_VERSION) ; \
+	( cd $(TOOLCHAIN_DIR)/usr/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(PKG_VERSION) ; \
 		[ -e libgcc_eh.a ] || ln -sf libgcc.a libgcc_eh.a ; \
 		cp libgcc.a libgcc_initial.a; \
 	)

toolchain/gcc/patches/4.3.3+cs/105-libtool.patch

@@ -0,0 +1,84 @@
+2008-03-02  Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+	Backport from upstream Libtool:
+
+	2007-10-12  Eric Blake  <ebb9@byu.net>
+
+	Deal with Autoconf 2.62's semantic change in m4_append.
+	* ltsugar.m4 (lt_append): Replace broken versions of
+	m4_append.
+	(lt_if_append_uniq): Don't require separator to be overquoted, and
+	avoid broken m4_append.
+	(lt_dict_add): Fix typo.
+	* libtool.m4 (_LT_DECL): Don't overquote separator.
+
+diff --git a/libtool.m4 b/libtool.m4
+index e86cd02..26a039a 100644
+--- a/libtool.m4
++++ b/libtool.m4
+@@ -319,7 +319,7 @@ m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])],
+ # VALUE may be 0, 1 or 2 for a computed quote escaped value based on
+ # VARNAME.  Any other value will be used directly.
+ m4_define([_LT_DECL],
+-[lt_if_append_uniq([lt_decl_varnames], [$2], [[, ]],
++[lt_if_append_uniq([lt_decl_varnames], [$2], [, ],
+     [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name],
+ 	[m4_ifval([$1], [$1], [$2])])
+     lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3])
+diff --git a/ltsugar.m4 b/ltsugar.m4
+index fc51dc7..dd4f871 100644
+--- a/ltsugar.m4
++++ b/ltsugar.m4
+@@ -1,13 +1,13 @@
+ # ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
+ #
+-# Copyright (C) 2004, 2005 Free Software Foundation, Inc.
++# Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
+ # Written by Gary V. Vaughan.
+ #
+ # This file is free software; the Free Software Foundation gives
+ # unlimited permission to copy and/or distribute it, with or without
+ # modifications, as long as this notice is preserved.
+ 
+-# serial 3 ltsugar.m4
++# serial 4 ltsugar.m4
+ 
+ # This is to help aclocal find these macros, as it can't see m4_define.
+ AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
+@@ -46,6 +46,20 @@ m4_define([lt_cdr],
+ m4_define([lt_unquote], $1)
+ 
+ 
++# lt_append(MACRO-NAME, STRING, [SEPARATOR])
++# ------------------------------------------
++# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'.
++# Note that neither SEPARATOR nor STRING are expanded.  No SEPARATOR is
++# output if MACRO-NAME was previously undefined (different than defined
++# and empty).
++# This macro is needed until we can rely on Autoconf 2.62, since earlier
++# versions of m4 mistakenly expanded SEPARATOR.
++m4_define([lt_append],
++[m4_define([$1],
++	   m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
++
++
++
+ # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
+ # ----------------------------------------------------------
+ # Produce a SEP delimited list of all paired combinations of elements of
+@@ -67,10 +81,10 @@ m4_define([lt_combine],
+ # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
+ m4_define([lt_if_append_uniq],
+ [m4_ifdef([$1],
+-	[m4_bmatch($3[]m4_defn([$1])$3, $3[]m4_re_escape([$2])$3,
+-		[$5],
+-	    [m4_append([$1], [$2], [$3])$4])],
+-    [m4_append([$1], [$2], [$3])$4])])
++	  [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
++		 [lt_append([$1], [$2], [$3])$4],
++		 [$5])],
++    [lt_append([$1], [$2], [$3])$4])])
+ 
+ 
+ # lt_dict_add(DICT, KEY, VALUE)
+

toolchain/gcc/patches/4.3.3+cs/106-fix_linker_error.patch

@@ -0,0 +1,11 @@
+--- a/gcc/cp/Make-lang.in
++++ b/gcc/cp/Make-lang.in
+@@ -73,7 +73,7 @@ g++-cross$(exeext): g++$(exeext)
+ CXX_C_OBJS = attribs.o c-common.o c-format.o c-pragma.o c-semantics.o c-lex.o \
+ 	c-dump.o $(CXX_TARGET_OBJS) c-pretty-print.o c-opts.o c-pch.o \
+ 	c-incpath.o cppdefault.o c-ppoutput.o c-cppbuiltin.o prefix.o \
+-	c-gimplify.o c-omp.o tree-inline.o
++	c-gimplify.o c-omp.o
+ 
+ # Language-specific object files for C++ and Objective C++.
+ CXX_AND_OBJCXX_OBJS = cp/call.o cp/decl.o cp/expr.o cp/pt.o cp/typeck2.o \

toolchain/gcc/patches/4.3.3+cs/301-missing-execinfo_h.patch

@@ -0,0 +1,11 @@
+--- a/boehm-gc/include/gc.h
++++ b/boehm-gc/include/gc.h
+@@ -503,7 +503,7 @@ GC_API GC_PTR GC_malloc_atomic_ignore_of
+ #if defined(__linux__) || defined(__GLIBC__)
+ # include <features.h>
+ # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
+-     && !defined(__ia64__)
++     && !defined(__ia64__) && !defined(__UCLIBC__)
+ #   ifndef GC_HAVE_BUILTIN_BACKTRACE
+ #     define GC_HAVE_BUILTIN_BACKTRACE
+ #   endif

toolchain/gcc/patches/4.3.3+cs/302-c99-snprintf.patch

@@ -0,0 +1,13 @@
+Index: gcc-4.3.0/libstdc++-v3/include/c_global/cstdio
+===================================================================
+--- gcc-4.3.0/libstdc++-v3/include/c_global/cstdio	(revision 129202)
++++ gcc-4.3.0/libstdc++-v3/include/c_global/cstdio	(working copy)
+@@ -144,7 +144,7 @@
+ 
+ _GLIBCXX_END_NAMESPACE
+ 
+-#if _GLIBCXX_USE_C99
++#if _GLIBCXX_USE_C99 || defined __UCLIBC__
+ 
+ #undef snprintf
+ #undef vfscanf

toolchain/gcc/patches/4.3.3+cs/305-libmudflap-susv3-legacy.patch

@@ -0,0 +1,49 @@
+Index: gcc-4.2/libmudflap/mf-hooks2.c
+===================================================================
+--- gcc-4.2/libmudflap/mf-hooks2.c	(revision 119834)
++++ gcc-4.2/libmudflap/mf-hooks2.c	(working copy)
+@@ -427,7 +427,7 @@
+ {
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
+-  bzero (s, n);
++  memset (s, 0, n);
+ }
+ 
+ 
+@@ -437,7 +437,7 @@
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(src, n, __MF_CHECK_READ, "bcopy src");
+   MF_VALIDATE_EXTENT(dest, n, __MF_CHECK_WRITE, "bcopy dest");
+-  bcopy (src, dest, n);
++  memmove (dest, src, n);
+ }
+ 
+ 
+@@ -447,7 +447,7 @@
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s1, n, __MF_CHECK_READ, "bcmp 1st arg");
+   MF_VALIDATE_EXTENT(s2, n, __MF_CHECK_READ, "bcmp 2nd arg");
+-  return bcmp (s1, s2, n);
++  return n == 0 ? 0 : memcmp (s1, s2, n);
+ }
+ 
+ 
+@@ -456,7 +456,7 @@
+   size_t n = strlen (s);
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "index region");
+-  return index (s, c);
++  return strchr (s, c);
+ }
+ 
+ 
+@@ -465,7 +465,7 @@
+   size_t n = strlen (s);
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "rindex region");
+-  return rindex (s, c);
++  return strrchr (s, c);
+ }
+ 
+ /* XXX:  stpcpy, memccpy */

toolchain/gcc/patches/4.3.3+cs/410-fix_pr37436.patch

@@ -0,0 +1,71 @@
+--- a/gcc/config/arm/arm.c
++++ b/gcc/config/arm/arm.c
+@@ -5073,6 +5073,7 @@ arm_legitimate_address_p (enum machine_m
+       rtx xop1 = XEXP (x, 1);
+ 
+       return ((arm_address_register_rtx_p (xop0, strict_p)
++	       && GET_CODE(xop1) == CONST_INT
+ 	       && arm_legitimate_index_p (mode, xop1, outer, strict_p))
+ 	      || (arm_address_register_rtx_p (xop1, strict_p)
+ 		  && arm_legitimate_index_p (mode, xop0, outer, strict_p)));
+--- a/gcc/config/arm/arm.md
++++ b/gcc/config/arm/arm.md
+@@ -4683,7 +4683,7 @@
+ 
+ (define_expand "extendqihi2"
+   [(set (match_dup 2)
+-	(ashift:SI (match_operand:QI 1 "general_operand" "")
++	(ashift:SI (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "")
+ 		   (const_int 24)))
+    (set (match_operand:HI 0 "s_register_operand" "")
+ 	(ashiftrt:SI (match_dup 2)
+@@ -4708,7 +4708,7 @@
+ 
+ (define_insn "*arm_extendqihi_insn"
+   [(set (match_operand:HI 0 "s_register_operand" "=r")
+-	(sign_extend:HI (match_operand:QI 1 "memory_operand" "Uq")))]
++	(sign_extend:HI (match_operand:QI 1 "arm_extendqisi_mem_op" "Uq")))]
+   "TARGET_ARM && arm_arch4"
+   "ldr%(sb%)\\t%0, %1"
+   [(set_attr "type" "load_byte")
+@@ -4719,7 +4719,7 @@
+ 
+ (define_expand "extendqisi2"
+   [(set (match_dup 2)
+-	(ashift:SI (match_operand:QI 1 "general_operand" "")
++	(ashift:SI (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "")
+ 		   (const_int 24)))
+    (set (match_operand:SI 0 "s_register_operand" "")
+ 	(ashiftrt:SI (match_dup 2)
+@@ -4751,7 +4751,7 @@
+ 
+ (define_insn "*arm_extendqisi"
+   [(set (match_operand:SI 0 "s_register_operand" "=r")
+-	(sign_extend:SI (match_operand:QI 1 "memory_operand" "Uq")))]
++	(sign_extend:SI (match_operand:QI 1 "arm_extendqisi_mem_op" "Uq")))]
+   "TARGET_ARM && arm_arch4 && !arm_arch6"
+   "ldr%(sb%)\\t%0, %1"
+   [(set_attr "type" "load_byte")
+@@ -4762,7 +4762,8 @@
+ 
+ (define_insn "*arm_extendqisi_v6"
+   [(set (match_operand:SI 0 "s_register_operand" "=r,r")
+-	(sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "r,Uq")))]
++	(sign_extend:SI
++	 (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "r,Uq")))]
+   "TARGET_ARM && arm_arch6"
+   "@
+    sxtb%?\\t%0, %1
+--- a/gcc/config/arm/predicates.md
++++ b/gcc/config/arm/predicates.md
+@@ -239,6 +239,10 @@
+        (match_test "arm_legitimate_address_p (mode, XEXP (op, 0), SIGN_EXTEND,
+ 					      0)")))
+ 
++(define_special_predicate "arm_reg_or_extendqisi_mem_op"
++  (ior (match_operand 0 "arm_extendqisi_mem_op")
++       (match_operand 0 "s_register_operand")))
++
+ (define_predicate "power_of_two_operand"
+   (match_code "const_int")
+ {

toolchain/gcc/patches/4.3.3+cs/420-fix_pr26515.patch

@@ -0,0 +1,13 @@
+--- a/gcc/config/cris/cris.md
++++ b/gcc/config/cris/cris.md
+@@ -4920,7 +4920,9 @@
+   "REGNO (operands[2]) == REGNO (operands[0])
+    && INTVAL (operands[3]) <= 65535 && INTVAL (operands[3]) >= 0
+    && !CONST_OK_FOR_LETTER_P (INTVAL (operands[3]), 'I')
+-   && !side_effects_p (operands[1])"
++   && !side_effects_p (operands[1])
++   && (!REG_P (operands[1])
++       || REGNO (operands[1]) <= CRIS_LAST_GENERAL_REGISTER)"
+   ;; FIXME: CC0 valid except for M (i.e. CC_NOT_NEGATIVE).
+   [(set (match_dup 0) (match_dup 4))
+    (set (match_dup 5) (match_dup 6))]

toolchain/gcc/patches/4.3.3+cs/810-arm-softfloat-libgcc.patch

@@ -0,0 +1,25 @@
+--- a/gcc/config/arm/t-linux
++++ b/gcc/config/arm/t-linux
+@@ -3,7 +3,10 @@
+ TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC
+ 
+ LIB1ASMSRC = arm/lib1funcs.asm
+-LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx
++LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx \
++      _negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
++      _truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
++      _fixsfsi _fixunssfsi _floatdidf _floatundidf _floatdisf _floatundisf
+ 
+ # MULTILIB_OPTIONS = mhard-float/msoft-float
+ # MULTILIB_DIRNAMES = hard-float soft-float
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -60,7 +60,7 @@
+    %{shared:-lc} \
+    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+ 
+-#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
++#define LIBGCC_SPEC "-lgcc"
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 

toolchain/gcc/patches/4.3.3+cs/910-mbsd_multi.patch

@@ -0,0 +1,270 @@
+
+	This patch brings over a few features from MirBSD:
+	* -fhonour-copts
+	  If this option is not given, it's warned (depending
+	  on environment variables). This is to catch errors
+	  of misbuilt packages which override CFLAGS themselves.
+	* -Werror-maybe-reset
+	  Has the effect of -Wno-error if GCC_NO_WERROR is
+	  set and not '0', a no-operation otherwise. This is
+	  to be able to use -Werror in "make" but prevent
+	  GNU autoconf generated configure scripts from
+	  freaking out.
+	* Make -fno-strict-aliasing and -fno-delete-null-pointer-checks
+	  the default for -O2/-Os, because they trigger gcc bugs
+	  and can delete code with security implications.
+
+	This patch was authored by Thorsten Glaser <tg at mirbsd.de>
+	with copyright assignment to the FSF in effect.
+
+--- a/gcc/c-opts.c
++++ b/gcc/c-opts.c
+@@ -108,6 +108,9 @@ static size_t deferred_count;
+ /* Number of deferred options scanned for -include.  */
+ static size_t include_cursor;
+ 
++/* Check if a port honours COPTS.  */
++static int honour_copts = 0;
++
+ static void set_Wimplicit (int);
+ static void handle_OPT_d (const char *);
+ static void set_std_cxx98 (int);
+@@ -462,6 +465,14 @@ c_common_handle_option (size_t scode, co
+       enable_warning_as_error ("implicit-function-declaration", value, CL_C | CL_ObjC); 
+       break;
+ 
++    case OPT_Werror_maybe_reset:
++      {
++	char *ev = getenv ("GCC_NO_WERROR");
++	if ((ev != NULL) && (*ev != '0'))
++	  cpp_opts->warnings_are_errors = 0;
++      }
++      break;
++
+     case OPT_Wformat:
+       set_Wformat (value);
+       break;
+@@ -708,6 +719,12 @@ c_common_handle_option (size_t scode, co
+       flag_exceptions = value;
+       break;
+ 
++    case OPT_fhonour_copts:
++      if (c_language == clk_c) {
++	honour_copts++;
++      }
++      break;
++
+     case OPT_fimplement_inlines:
+       flag_implement_inlines = value;
+       break;
+@@ -1248,6 +1265,47 @@ c_common_init (void)
+   /* Has to wait until now so that cpplib has its hash table.  */
+   init_pragma ();
+ 
++  if (c_language == clk_c) {
++    char *ev = getenv ("GCC_HONOUR_COPTS");
++    int evv;
++    if (ev == NULL)
++      evv = -1;
++    else if ((*ev == '0') || (*ev == '\0'))
++      evv = 0;
++    else if (*ev == '1')
++      evv = 1;
++    else if (*ev == '2')
++      evv = 2;
++    else if (*ev == 's')
++      evv = -1;
++    else {
++      warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
++      evv = 1; /* maybe depend this on something like MIRBSD_NATIVE?  */
++    }
++    if (evv == 1) {
++      if (honour_copts == 0) {
++	error ("someone does not honour COPTS at all in lenient mode");
++	return false;
++      } else if (honour_copts != 1) {
++	warning (0, "someone does not honour COPTS correctly, passed %d times",
++	 honour_copts);
++      }
++    } else if (evv == 2) {
++      if (honour_copts == 0) {
++	error ("someone does not honour COPTS at all in strict mode");
++	return false;
++      } else if (honour_copts != 1) {
++	error ("someone does not honour COPTS correctly, passed %d times",
++	 honour_copts);
++	return false;
++      }
++    } else if (evv == 0) {
++      if (honour_copts != 1)
++	inform ("someone does not honour COPTS correctly, passed %d times",
++	 honour_copts);
++    }
++  }
++
+   return true;
+ }
+ 
+--- a/gcc/c.opt
++++ b/gcc/c.opt
+@@ -207,6 +207,10 @@ Werror-implicit-function-declaration
+ C ObjC RejectNegative Warning
+ This switch is deprecated; use -Werror=implicit-function-declaration instead
+ 
++Werror-maybe-reset
++C ObjC C++ ObjC++
++; Documented in common.opt
++
+ Wfloat-equal
+ C ObjC C++ ObjC++ Var(warn_float_equal) Warning
+ Warn if testing floating point numbers for equality
+@@ -590,6 +594,9 @@ C++ ObjC++ Optimization
+ fhonor-std
+ C++ ObjC++
+ 
++fhonour-copts
++C ObjC C++ ObjC++ RejectNegative
++
+ fhosted
+ C ObjC
+ Assume normal C execution environment
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -102,6 +102,10 @@ Werror=
+ Common Joined
+ Treat specified warning as error
+ 
++Werror-maybe-reset
++Common
++If environment variable GCC_NO_WERROR is set, act as -Wno-error
++
+ Wextra
+ Common Warning
+ Print extra (possibly unwanted) warnings
+@@ -542,6 +546,9 @@ fguess-branch-probability
+ Common Report Var(flag_guess_branch_prob) Optimization
+ Enable guessing of branch probabilities
+ 
++fhonour-copts
++Common RejectNegative
++
+ ; Nonzero means ignore `#ident' directives.  0 means handle them.
+ ; Generate position-independent code for executables if possible
+ ; On SVR4 targets, it also controls whether or not to emit a
+--- a/gcc/opts.c
++++ b/gcc/opts.c
+@@ -830,9 +830,6 @@ decode_options (unsigned int argc, const
+       flag_schedule_insns_after_reload = 1;
+ #endif
+       flag_regmove = 1;
+-      flag_strict_aliasing = 1;
+-      flag_strict_overflow = 1;
+-      flag_delete_null_pointer_checks = 1;
+       flag_reorder_blocks = 1;
+       flag_reorder_functions = 1;
+       flag_tree_store_ccp = 1;
+@@ -853,6 +850,10 @@ decode_options (unsigned int argc, const
+ 
+   if (optimize >= 3)
+     {
++      flag_strict_aliasing = 1;
++      flag_strict_overflow = 1;
++      flag_delete_null_pointer_checks = 1;
++
+       flag_predictive_commoning = 1;
+       flag_inline_functions = 1;
+       flag_unswitch_loops = 1;
+@@ -1444,6 +1445,17 @@ common_handle_option (size_t scode, cons
+       enable_warning_as_error (arg, value, lang_mask);
+       break;
+ 
++    case OPT_Werror_maybe_reset:
++      {
++	char *ev = getenv ("GCC_NO_WERROR");
++	if ((ev != NULL) && (*ev != '0'))
++	  warnings_are_errors = 0;
++      }
++      break;
++
++    case OPT_fhonour_copts:
++      break;
++
+     case OPT_Wextra:
+       set_Wextra (value);
+       break;
+--- a/gcc/doc/cppopts.texi
++++ b/gcc/doc/cppopts.texi
+@@ -168,6 +168,11 @@ in older programs.  This warning is on b
+ Make all warnings into hard errors.  Source code which triggers warnings
+ will be rejected.
+ 
++ at item -Werror-maybe-reset
++ at opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
+ @item -Wsystem-headers
+ @opindex Wsystem-headers
+ Issue warnings for code in system headers.  These are normally unhelpful
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -233,7 +233,7 @@ Objective-C and Objective-C++ Dialects}.
+ -Wconversion  -Wcoverage-mismatch  -Wno-deprecated-declarations @gol
+ -Wdisabled-optimization  -Wno-div-by-zero  @gol
+ -Wempty-body  -Wno-endif-labels @gol
+--Werror  -Werror=* @gol
++-Werror  -Werror=* -Werror-maybe-reset @gol
+ -Wfatal-errors  -Wfloat-equal  -Wformat  -Wformat=2 @gol
+ -Wno-format-extra-args -Wformat-nonliteral @gol
+ -Wformat-security  -Wformat-y2k -Wignored-qualifiers @gol
+@@ -4047,6 +4047,22 @@ This option is only supported for C and 
+ @option{-Wall} and by @option{-pedantic}, which can be disabled with
+ @option{-Wno-pointer-sign}.
+ 
++ at item -Werror-maybe-reset
++ at opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
++ at item -fhonour-copts
++ at opindex fhonour-copts
++If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
++given at least once, and warn if it is given more than once.
++If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
++given exactly once.
++If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
++is not given exactly once.
++The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
++This flag and environment variable only affect the C language.
++
+ @item -Wstack-protector
+ @opindex Wstack-protector
+ @opindex Wno-stack-protector
+@@ -5522,7 +5538,7 @@ so, the first branch is redirected to ei
+ second branch or a point immediately following it, depending on whether
+ the condition is known to be true or false.
+ 
+-Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
++Enabled at levels @option{-O3}.
+ 
+ @item -fsplit-wide-types
+ @opindex fsplit-wide-types
+@@ -5667,7 +5683,7 @@ safely dereference null pointers.  Use
+ @option{-fno-delete-null-pointer-checks} to disable this optimization
+ for programs which depend on that behavior.
+ 
+-Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
++Enabled at levels @option{-O3}.
+ 
+ @item -fexpensive-optimizations
+ @opindex fexpensive-optimizations
+--- a/gcc/java/jvspec.c
++++ b/gcc/java/jvspec.c
+@@ -670,6 +670,7 @@ lang_specific_pre_link (void)
+      class name.  Append dummy `.c' that can be stripped by set_input so %b
+      is correct.  */ 
+   set_input (concat (main_class_name, "main.c", NULL));
++  putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack!  */
+   err = do_spec (jvgenmain_spec);
+   if (err == 0)
+     {

toolchain/gcc/patches/4.3.3+cs/993-arm_insn-opinit-RTX_CODE-fixup.patch

@@ -0,0 +1,32 @@
+gcc/ChangeLog
+2007-11-27  Bernhard Fischer  <>
+
+	* config/arm/arm-protos.h (arm_vector_mode_supported_p,
+	arm_hard_regno_mode_ok, const_ok_for_arm): Do not hide non-rtx related
+	function prototypes in RTX_CODE.
+	* genopinit.c: Include tm_p.h.
+
+--- a/gcc/config/arm/arm-protos.h
++++ b/gcc/config/arm/arm-protos.h
+@@ -43,10 +43,10 @@ extern unsigned int arm_dbx_register_num
+ extern void arm_output_fn_unwind (FILE *, bool);
+   
+ 
+-#ifdef RTX_CODE
+ extern bool arm_vector_mode_supported_p (enum machine_mode);
+ extern int arm_hard_regno_mode_ok (unsigned int, enum machine_mode);
+ extern int const_ok_for_arm (HOST_WIDE_INT);
++#ifdef RTX_CODE
+ extern int arm_split_constant (RTX_CODE, enum machine_mode, rtx,
+ 			       HOST_WIDE_INT, rtx, rtx, int);
+ extern RTX_CODE arm_canonicalize_comparison (RTX_CODE, enum machine_mode,
+--- a/gcc/genopinit.c
++++ b/gcc/genopinit.c
+@@ -487,6 +487,7 @@ from the machine description file `md'. 
+   printf ("#include \"expr.h\"\n");
+   printf ("#include \"optabs.h\"\n");
+   printf ("#include \"reload.h\"\n\n");
++  printf ("#include \"tm_p.h\"\n\n");
+ 
+   printf ("void\ninit_all_optabs (void)\n{\n");
+ 

toolchain/gcc/patches/4.3.3+cs/998-gcc-4.3.0-fix-header.00.patch

@@ -0,0 +1,13 @@
+\\\\
+\\ gcc PR33200
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -1460,7 +1460,7 @@ i[34567]86-*-uwin*)
+ 	if test x$enable_threads = xyes; then
+ 		thread_file='win32'
+ 	fi
+-	use_fixproto=yes
++	# XXX: why? use_fixproto=yes
+ 	;;
+ i[34567]86-*-interix3*)
+ 	tm_file="${tm_file} i386/unix.h i386/bsd.h i386/gas.h i386/i386-interix.h i386/i386-interix3.h interix.h interix3.h"

toolchain/gcc/patches/4.3.3+cs/999-coldfire.patch

@@ -0,0 +1,10 @@
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -1678,6 +1678,7 @@ m68k-*-linux*)		# Motorola m68k's runnin
+ 	if test x$sjlj != x1; then
+ 	    tmake_file="$tmake_file m68k/t-slibgcc-elf-ver"
+ 	fi
++	tmake_file="m68k/t-floatlib m68k/t-m68kbare m68k/t-m68kelf"
+ 	;;
+ m68k-*-rtems*)
+ 	default_m68k_cpu=68020