t-pdp11

linux下的gcc编译器

TARGET_LIBGCC2_CFLAGS = -O2 -mfloat32
LIB2FUNCS_EXTRA = $(srcdir)/config/udivmod.c $(srcdir)/config/udivmodsi4.c
# floating point emulation libraries

FPBIT = fp-bit.c
DPBIT = 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

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

MULTILIB_OPTIONS = msoft-float