t-linux64

gcc-you can use this code to learn something about gcc, and inquire further into linux,

# Override t-linux.  We don't want -fPIC.
CRTSTUFF_T_CFLAGS_S =
TARGET_LIBGCC2_CFLAGS =

EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o \
			crtsavres.o

# These functions are needed for soft-float on powerpc64-linux.
LIB2FUNCS_EXTRA = $(srcdir)/config/rs6000/ppc64-fp.c

# ld provides these functions as needed.
crtsavres.S:
	echo >crtsavres.S

$(T)crtsavres.o: crtsavres.S
	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -c crtsavres.S -o $(T)crtsavres.o

# Modify the shared lib version file
SHLIB_MKMAP_OPTS = -v dotsyms=1