t-ppc

gcc库的原代码,对编程有很大帮助.

# Do not build libgcc1.
LIBGCC1 =
CROSS_LIBGCC1 =

# These are really part of libgcc1, but this will cause them to be
# built correctly, so... [taken from t-sparclite]
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

# Build libgcc.a with different options.  If no gas support, don't build
# explicit little endian or big endian libraries, since it depends on the
# -mbig/-mlittle switches passed to gas.

MULTILIB_OPTIONS	= msoft-float
MULTILIB_DIRNAMES	= soft-float
MULTILIB_MATCHES	= msoft-float=mcpu?403 \
			  msoft-float=mcpu?mpc403 \
			  msoft-float=mcpu?ppc403

LIBGCC = stmp-multilib
INSTALL_LIBGCC = install-multilib