update gcc nios2 support, thanks atle

config BR2_SOFT_FLOAT

	bool "Use software floating point by default"

	default n

	depends on BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel || BR2_powerpc

	depends on BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel || BR2_powerpc || BR2_nios2

	help

	  If your target CPU does not have a Floating Point Unit (FPU) or a

	  kernel FPU emulator, but you still wish to support floating point

Index: gcc/gcc/config/nios2/nios2.h

===================================================================

--- gcc/gcc/config/nios2/nios2.h	(revision 195)

+++ gcc/gcc/config/nios2/nios2.h	(revision 196)

@@ -88,8 +88,6 @@

       N_("All ld/st instructins do not use io variants (default)") },		\

     { "smallc", 0,			\

       N_("Link with a limited version of the C library") },		\

-    { "ctors-in-init", 0,			\

-      "" /* undocumented: N_("Link with static constructors and destructors in init") */ },		\

     { "", TARGET_DEFAULT, 0 }				\

 }

@@ -140,12 +138,12 @@

 #define STARTFILE_SPEC  \

 "%{msys-crt0=*: %*} %{!msys-crt0=*: crt1%O%s} \

  %{msys-crt0=: %eYou need a C startup file for -msys-crt0=} \

- %{mctors-in-init: crti%O%s crtbegin%O%s} \

+ crti%O%s crtbegin%O%s \

 "

 #undef ENDFILE_SPEC 

 #define ENDFILE_SPEC \

- "%{mctors-in-init: crtend%O%s crtn%O%s}"

+ " crtend%O%s crtn%O%s"

 /***********************

Index: gcc/gcc/config/nios2/t-nios2

===================================================================

--- gcc/gcc/config/nios2/t-nios2	(revision 195)

+++ gcc/gcc/config/nios2/t-nios2	(revision 196)

@@ -36,18 +36,8 @@

 	echo ''          >  ${DPBIT}

 	cat $(srcdir)/config/fp-bit.c >> ${DPBIT}

-EXTRA_MULTILIB_PARTS = crtbegin.o crtend.o crti.o crtn.o 

+EXTRA_MULTILIB_PARTS = crtbegin.o crtend.o

-# Assemble startup files. 

-$(T)crti.o: $(srcdir)/config/nios2/crti.asm $(GCC_PASSES) 

-	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) $(INCLUDES) \

-	-c -o $(T)crti.o -x assembler-with-cpp $(srcdir)/config/nios2/crti.asm 

-

-$(T)crtn.o: $(srcdir)/config/nios2/crtn.asm $(GCC_PASSES) 

-	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) $(INCLUDES) \

-	-c -o $(T)crtn.o -x assembler-with-cpp $(srcdir)/config/nios2/crtn.asm 

-

-

 ## You may need to provide additional #defines at the beginning of

 ## fp-bit.c and dp-bit.c to control target endianness and other options

 ##

--- gcc-3.4.6/gcc/config/t-linux-uclibc	2007-11-07 14:50:34.000000000 +0100

+++ /dev/null	2007-11-02 12:35:37.750656579 +0100

@@ -1,5 +0,0 @@

-# Remove glibc specific files added in t-linux

-SHLIB_MAPFILES := $(filter-out $(srcdir)/config/libgcc-glibc.ver, $(SHLIB_MAPFILES))

-

-# Use unwind-dw2-fde instead of unwind-dw2-fde-glibc

-LIB2ADDEH := $(subst unwind-dw2-fde-glibc.c,unwind-dw2-fde.c,$(LIB2ADDEH))

--- gcc-3.4.6/gcc/config.gcc.orig	2007-11-07 14:50:34.000000000 +0100

+++ gcc-3.4.6/gcc/config.gcc	2007-11-07 15:32:31.000000000 +0100

@@ -2334,7 +2334,7 @@

 # Rather than hook into each target, just do it after all the linux

 # targets have been processed

 case ${target} in

-*-linux-uclibc*) tm_defines="${tm_defines} USE_UCLIBC" ; tmake_file="${tmake_file} t-linux-uclibc"

+*-linux-uclibc*) tm_defines="${tm_defines} USE_UCLIBC"

 esac

 # Support for --with-cpu and related options (and a few unrelated options,

ifeq ($(BR2_SOFT_FLOAT),y)

# gcc 3.4.x soft float configuration is different than previous versions.

ifeq ($(findstring x3.4.,x$(GCC_VERSION)),x3.4.)

ifneq ($(BR2_nios2),y)

SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft

endif

else

SOFT_FLOAT_CONFIG_OPTION:=--without-float

endif

	#ifeq ("$(strip $(ARCH))","i386")

	#toolchain/patch-kernel.sh $(GCC_DIR) toolchain/gcc i386-gcc-soft-float.patch

	#endif

endif

ifeq ("$(strip $(ARCH))","nios2")

	toolchain/patch-kernel.sh $(GCC_DIR) toolchain/gcc/$(GCC_VERSION) nios2-config-fix.patch.conditional

endif

	touch $@