| SHLIB_MAPFILES += $(srcdir)/config/rs6000/libgcc-glibc.ver |
| |
| HOST_LIBGCC2_CFLAGS += -mlong-double-128 |
| |
| # This is a way of selecting -mcmodel=small for ppc64, which gives |
| # smaller and faster libgcc code. Directly specifying -mcmodel=small |
| # would need to take into account targets for which -mcmodel is invalid. |
| HOST_LIBGCC2_CFLAGS += -mno-minimal-toc |
| |
| # On the modules that deal with IBM 128-bit values, make sure that TFmode uses |
| # the IBM extended double format. Also turn off gnu attributes on the static |
| # modules. |
| # _BitInt <-> IBM double double (__ibm128) conversions. These live here |
| # rather than in t-float128 because __ibm128 exists on configurations that |
| # have no IEEE 128-bit support at all (32-bit, pre-POWER7), and the |
| # conversions need nothing beyond DFmode; in particular they must not be |
| # built with -mfloat128 or a forced VSX/CPU level. They use __ibm128 |
| # explicitly rather than long double, so they do not need |
| # -mabi=ibmlongdouble either. |
| ibm128_bitint_funcs = floatbitinttf-ibm128 fixtfbitint-ibm128 |
| ibm128_bitint_src = $(addprefix $(srcdir)/config/rs6000/, \ |
| $(addsuffix .c,$(ibm128_bitint_funcs))) |
| LIB2ADD += $(ibm128_bitint_src) |
| |
| ibm128_bitint_objs = $(addsuffix $(objext),$(ibm128_bitint_funcs)) \ |
| $(addsuffix _s$(objext),$(ibm128_bitint_funcs)) |
| # soft-fp.h, double.h and bitint.h come from libgcc/soft-fp; the files |
| # themselves live in config/rs6000. Deliberately no -mvsx/-mfloat128 |
| # here: these use only DFmode and must build without IEEE 128-bit |
| # support. -Wno-missing-prototypes/-Wno-type-limits match what |
| # t-softfp applies to the soft-fp sources. |
| IBM128_BITINT_CFLAGS = -Wno-psabi -mno-gnu-attribute \ |
| -Wno-missing-prototypes -Wno-type-limits \ |
| -I$(srcdir)/soft-fp \ |
| -I$(srcdir)/config/rs6000 |
| $(ibm128_bitint_objs) : INTERNAL_CFLAGS += $(IBM128_BITINT_CFLAGS) |
| |
| IBM128_STATIC_OBJS = ibm-ldouble$(objext) _powitf2$(objext) \ |
| ppc64-fp$(objext) _divtc3$(objext) _multc3$(objext) \ |
| _fixtfdi$(objext) _fixunstfdi$(objext) \ |
| _floatditf$(objext) _floatunditf$(objext) \ |
| _fixtfti$(objext) _fixunstfti$(objext) \ |
| _floattitf$(objext) _floatuntitf$(objext) |
| IBM128_SHARED_OBJS = $(IBM128_STATIC_OBJS:$(objext)=_s$(objext)) |
| IBM128_OBJS = $(IBM128_STATIC_OBJS) $(IBM128_SHARED_OBJS) |
| |
| IBM128_CFLAGS = -Wno-psabi -mabi=ibmlongdouble -mno-gnu-attribute |
| |
| $(IBM128_OBJS) : INTERNAL_CFLAGS += $(IBM128_CFLAGS) |
| |
| # Turn off gnu attributes for long double size on all of the shared library |
| # modules, but leave it on for the static modules, except for the functions |
| # that explicitly process IBM 128-bit floating point. Shared libraries only |
| # have one gnu attribute for the whole library, and it can lead to warnings if |
| # somebody changes the long double format. We leave it on for the static |
| # modules to catch mis-compilation errors. |
| gcc_s_compile += -mno-gnu-attribute |
