Re: GCC 4.4 cross compiler and issue with __floatdidf

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Kai Ruottu wrote:

 If I look in gcc/config/arm/t-wince-pe here is what is declared for my
 target:
 LIB1ASMSRC = arm/lib1funcs.asm
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _call_via_rX
 _interwork_call_via_rX _clzsi2 _clzdi2 \
     _bb_init_func _lshrdi3 _ashrdi3 _ashldi3 \
_negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
     _truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
     _fixsfsi _fixunssfsi _floatdidf _floatdisf \
     _arm_fixunsdfsi
and I can see that _floatdidf is declared but is not available in libgcc
>
Does it mean I need to remove _floatdidf _floatdisf from the list ?

No, you could try editing the '_addsubdf3' to '_arm_addsubdf3' and see
what happens...

This could be the first step...

+# _arm_negdf2 _arm_addsubdf3 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
+#    _arm_fixdfsi _arm_fixunsdfsi \
+#    _arm_truncdfsf2 _arm_negsf2 _arm_addsubsf3 _arm_muldivsf3 \
+#    _arm_cmpsf2 _arm_unordsf2 _arm_fixsfsi _arm_fixunssfsi \
+#    _arm_floatdidf _arm_floatdisf _arm_floatundidf _arm_floatundisf \
+#    _clzsi2 _clzdi2

... and adding the '_arm' prefix for other module names when other
undefined symbols will appear. Maybe it could be possible to activate
all the modules in 'ieee754-sf.S' and 'ieee754-df.S' via editing the
'_arm' to each name in the modules list...

Why these names were put only as "candidates" in the patch is unclear,
otherwise than I wrote, the "original" 't-arm-wince-pe' didn't list
these '_arm'-prefixed modules to be included in libgcc...

BTW, doesn't WinCE/ARM include any soft-float routines in its native
DLLs etc.?


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