Unreviewed patch (was: another bootstrap failure onsparc-sun-solaris28 in cp/xref.o)

[John Wehle]

>>   due to gcc outputing .uaxword which the Sun assembler dislikes when
>>   targeting the 32 bit instruction set.
>
>I suspect that one can simply do
>
>#define UNALIGNED_DOUBLE_INT_ASM_OP  (TARGET_ARCH64 ? ".uaxword" : NULL)

Unfortunately that doesn't suffice.

> but the patch didn't describe what caused the problem.

When compiling libobjc/linking.m the compiler outputs ".uaxword" in
order to output a double int.  Changing UNALIGNED_DOUBLE_INT_ASM_OP
to return NULL when ! TARGET_ARCH64 causes the bootstrap to fail
because the dw2_asm_output_* routines assume that unaligned_integer_asm_op
always returns a string.

assemble_integer is capable of outputting unaligned integers and
knows how to output a double int even when UNALIGNED_DOUBLE_INT_ASM_OP
is NULL.  The patch replaces unaligned_integer_asm_op with assemble_integer.

-- John
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