t-m32r   [plain text]

# We want fine grained libraries, so use the new code to build the
# floating point emulation libraries.
FPBIT = fp-bit.c
DPBIT = dp-bit.c

# Turn off the SDA while compiling libgcc2.  There are no headers for it
# and we want maximal upward compatibility here.


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

# We need to use -fpic when we are using gcc to compile the routines in
# initfini.c.  This is only really needed when we are going to use gcc/g++
# to produce a shared library, but since we don't know ahead of time when
# we will be doing that, we just always use -fpic when compiling the
# routines in initfini.c.
# -fpic currently isn't supported for the m32r.


# .init/.fini section routines

$(T)crtinit.o: $(srcdir)/config/m32r/initfini.c $(GCC_PASSES) $(CONFIG_H)
	-finhibit-size-directive -fno-inline-functions -g0 \
	-mmodel=medium -c $(srcdir)/config/m32r/initfini.c \
	-o $(T)crtinit.o 

$(T)crtfini.o: $(srcdir)/config/m32r/initfini.c $(GCC_PASSES) $(CONFIG_H)
	-finhibit-size-directive -fno-inline-functions -g0 \
	-mmodel=medium -c $(srcdir)/config/m32r/initfini.c \
	-o $(T)crtfini.o 
	mkdir $@
	mkdir $@

# -mmodel={small,medium} requires separate libraries.
# We don't build libraries for the large model, instead we use the medium
# libraries.  The only difference is that the large model can handle jumps
# more than 26 signed bits away.

MULTILIB_OPTIONS = mmodel=small/mmodel=medium m32r/m32rx/m32r2 
MULTILIB_DIRNAMES = small medium m32r m32rx m32r2
MULTILIB_MATCHES = mmodel?medium=mmodel?large

# Set MULTILIB_EXTRA_OPTS so shipped libraries have small data in .sdata and
# This is important for objects referenced in system header files.
MULTILIB_EXTRA_OPTS = msdata=sdata

EXTRA_MULTILIB_PARTS = crtinit.o crtfini.o

LIBGCC = stmp-multilib
INSTALL_LIBGCC = install-multilib