t-elf

gcc编译工具没有什么特别

# we need to supply our own assembly versions of libgcc1.c files,
# since the user may not have native 'cc' available

CROSS_LIBGCC1 = libgcc1-asm.a
LIB1ASMSRC = sparc/lb1spc.asm
LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3

# crt0 is built elsewhere
LIBGCC1_TEST =

# These are really part of libgcc1, but this will cause them to be
# built correctly, so...

LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c

dp-bit.c: $(srcdir)/config/fp-bit.c
	cat $(srcdir)/config/fp-bit.c > dp-bit.c

fp-bit.c: $(srcdir)/config/fp-bit.c
	echo '#define FLOAT' > fp-bit.c
	cat $(srcdir)/config/fp-bit.c >> fp-bit.c

# MULTILIB_OPTIONS should have msparclite too, but we'd have to make
# gas build...
#MULTILIB_OPTIONS = msoft-float mcpu=v8
MULTILIB_OPTIONS = msoft-float
#MULTILIB_DIRNAMES = soft v8
MULTILIB_DIRNAMES = soft
#MULTILIB_MATCHES = msoft-float=mno-fpu mcpu?v8=mv8
MULTILIB_MATCHES = msoft-float=mno-fpu

LIBGCC = stmp-multilib
INSTALL_LIBGCC = install-multilib

# Assemble startup files.
crti.o: $(srcdir)/config/sparc/sol2-ci.asm $(GCC_PASSES)
	$(GCC_FOR_TARGET) -c -o crti.o -x assembler $(srcdir)/config/sparc/sol2-ci.asm
crtn.o: $(srcdir)/config/sparc/sol2-cn.asm $(GCC_PASSES)
	$(GCC_FOR_TARGET) -c -o crtn.o -x assembler $(srcdir)/config/sparc/sol2-cn.asm