1# We want fine grained libraries, so use the new code to build the
2# floating point emulation libraries.
3FPBIT = fp-bit.c
4DPBIT = dp-bit.c
5
6# Turn off the SDA while compiling libgcc2.  There are no headers for it
7# and we want maximal upward compatibility here.
8
9TARGET_LIBGCC2_CFLAGS = -G 0
10
11fp-bit.c: $(srcdir)/config/fp-bit.c
12	echo '#define FLOAT' > fp-bit.c
13	cat $(srcdir)/config/fp-bit.c >> fp-bit.c
14
15dp-bit.c: $(srcdir)/config/fp-bit.c
16	cat $(srcdir)/config/fp-bit.c > dp-bit.c
17
18# We need to use -fpic when we are using gcc to compile the routines in
19# initfini.c.  This is only really needed when we are going to use gcc/g++
20# to produce a shared library, but since we don't know ahead of time when
21# we will be doing that, we just always use -fpic when compiling the
22# routines in initfini.c.
23# -fpic currently isn't supported for the m32r.
24
25CRTSTUFF_T_CFLAGS =
26
27# .init/.fini section routines
28
29$(T)crtinit.o: $(srcdir)/config/m32r/initfini.c $(GCC_PASSES) $(CONFIG_H)
30	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) \
31	$(CRTSTUFF_T_CFLAGS) $(INCLUDES) -DCRT_INIT \
32	-finhibit-size-directive -fno-inline-functions -g0 \
33	-mmodel=medium -c $(srcdir)/config/m32r/initfini.c \
34	-o $(T)crtinit.o
35
36$(T)crtfini.o: $(srcdir)/config/m32r/initfini.c $(GCC_PASSES) $(CONFIG_H)
37	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) \
38	$(CRTSTUFF_T_CFLAGS) $(INCLUDES) -DCRT_FINI \
39	-finhibit-size-directive -fno-inline-functions -g0 \
40	-mmodel=medium -c $(srcdir)/config/m32r/initfini.c \
41	-o $(T)crtfini.o
42m32rx:
43	mkdir $@
44m32r2:
45	mkdir $@
46
47# -mmodel={small,medium} requires separate libraries.
48# We don't build libraries for the large model, instead we use the medium
49# libraries.  The only difference is that the large model can handle jumps
50# more than 26 signed bits away.
51
52MULTILIB_OPTIONS = mmodel=small/mmodel=medium m32r/m32rx/m32r2
53MULTILIB_DIRNAMES = small medium m32r m32rx m32r2
54MULTILIB_MATCHES = mmodel?medium=mmodel?large
55
56# Set MULTILIB_EXTRA_OPTS so shipped libraries have small data in .sdata and
57# SHN_M32R_SCOMMON.
58# This is important for objects referenced in system header files.
59MULTILIB_EXTRA_OPTS = msdata=sdata
60
61EXTRA_MULTILIB_PARTS = crtinit.o crtfini.o
62
63LIBGCC = stmp-multilib
64INSTALL_LIBGCC = install-multilib
65