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julius |
# We want fine grained libraries, so use the new code to build the
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# floating point emulation libraries.
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FPBIT = fp-bit.c
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DPBIT = dp-bit.c
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# Turn off the SDA while compiling libgcc2. There are no headers for it
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# and we want maximal upward compatibility here.
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TARGET_LIBGCC2_CFLAGS = -G 0
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fp-bit.c: $(srcdir)/config/fp-bit.c
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echo '#define FLOAT' > fp-bit.c
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cat $(srcdir)/config/fp-bit.c >> fp-bit.c
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dp-bit.c: $(srcdir)/config/fp-bit.c
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cat $(srcdir)/config/fp-bit.c > dp-bit.c
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# We need to use -fpic when we are using gcc to compile the routines in
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# initfini.c. This is only really needed when we are going to use gcc/g++
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# to produce a shared library, but since we don't know ahead of time when
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# we will be doing that, we just always use -fpic when compiling the
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# routines in initfini.c.
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# -fpic currently isn't supported for the m32r.
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CRTSTUFF_T_CFLAGS =
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# .init/.fini section routines
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$(T)crtinit.o: $(srcdir)/config/m32r/initfini.c $(GCC_PASSES) $(CONFIG_H)
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$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) \
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$(CRTSTUFF_T_CFLAGS) $(INCLUDES) -DCRT_INIT \
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-finhibit-size-directive -fno-inline-functions -g0 \
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-mmodel=medium -c $(srcdir)/config/m32r/initfini.c \
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-o $(T)crtinit.o
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$(T)crtfini.o: $(srcdir)/config/m32r/initfini.c $(GCC_PASSES) $(CONFIG_H)
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$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) \
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$(CRTSTUFF_T_CFLAGS) $(INCLUDES) -DCRT_FINI \
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-finhibit-size-directive -fno-inline-functions -g0 \
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-mmodel=medium -c $(srcdir)/config/m32r/initfini.c \
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-o $(T)crtfini.o
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m32rx:
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mkdir $@
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m32r2:
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mkdir $@
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# -mmodel={small,medium} requires separate libraries.
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# We don't build libraries for the large model, instead we use the medium
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# libraries. The only difference is that the large model can handle jumps
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# more than 26 signed bits away.
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MULTILIB_OPTIONS = mmodel=small/mmodel=medium m32r/m32rx/m32r2
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MULTILIB_DIRNAMES = small medium m32r m32rx m32r2
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MULTILIB_MATCHES = mmodel?medium=mmodel?large
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# Set MULTILIB_EXTRA_OPTS so shipped libraries have small data in .sdata and
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# SHN_M32R_SCOMMON.
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# This is important for objects referenced in system header files.
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MULTILIB_EXTRA_OPTS = msdata=sdata
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EXTRA_MULTILIB_PARTS = crtinit.o crtfini.o
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LIBGCC = stmp-multilib
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INSTALL_LIBGCC = install-multilib
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