32 lines
1.5 KiB
Text
32 lines
1.5 KiB
Text
SHLIB_MAPFILES += $(srcdir)/config/rs6000/libgcc-glibc.ver
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HOST_LIBGCC2_CFLAGS += -mlong-double-128
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# This is a way of selecting -mcmodel=small for ppc64, which gives
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# smaller and faster libgcc code. Directly specifying -mcmodel=small
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# would need to take into account targets for which -mcmodel is invalid.
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HOST_LIBGCC2_CFLAGS += -mno-minimal-toc
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# On the modules that deal with IBM 128-bit values, make sure that TFmode uses
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# the IBM extended double format. Also turn off gnu attributes on the static
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# modules.
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IBM128_STATIC_OBJS = ibm-ldouble$(objext) _powitf2$(objext) \
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ppc64-fp$(objext) _divtc3$(objext) _multc3$(objext) \
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_fixtfdi$(objext) _fixunstfdi$(objext) \
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_floatditf$(objext) _floatunditf$(objext) \
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_fixtfti$(objext) _fixunstfti$(objext) \
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_floattitf$(objext) _floatuntitf$(objext)
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IBM128_SHARED_OBJS = $(IBM128_STATIC_OBJS:$(objext)=_s$(objext))
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IBM128_OBJS = $(IBM128_STATIC_OBJS) $(IBM128_SHARED_OBJS)
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IBM128_CFLAGS = -Wno-psabi -mabi=ibmlongdouble -mno-gnu-attribute
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$(IBM128_OBJS) : INTERNAL_CFLAGS += $(IBM128_CFLAGS)
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# Turn off gnu attributes for long double size on all of the shared library
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# modules, but leave it on for the static modules, except for the functions
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# that explicitly process IBM 128-bit floating point. Shared libraries only
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# have one gnu attribute for the whole library, and it can lead to warnings if
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# somebody changes the long double format. We leave it on for the static
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# modules to catch mis-compilation errors.
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gcc_s_compile += -mno-gnu-attribute
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