Re: [doc] Remove references to mips-tfile on MIPS

[Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>]

Joseph,

> Not strictly related to this patch, but there are other cleanups possible 
> because of the only-used-on-Tru64 nature of mips-tdump/mips-tfile.  In 
> particular, there are seven target macros (all undocumented) used by those 
> programs and nowhere else in GCC: ALIGN_SYMTABLE_OFFSET CODE_MASK 
> MIPS_IS_STAB MIPS_MARK_STAB MIPS_UNMARK_STAB SHASH_SIZE THASH_SIZE.  
> Since those are only defined in alpha.h and only used on those programs, 
> it would be better to hardcode the definitions inside 
> mips-{tdump,tfile}.c, remove them from alpha.h and so eliminate seven 
> target macros (about 1% of the total).  If you also hardcode the right 
> definition of MIPS_DEBUGGING_INFO (used both in mips-tfile and elsewhere) 
> then these programs should no longer depend on target macros and their 
> tm.h includes can be removed.

seems like a plan.  I'll have a look, especially since several of the
macros are only used in either mips-tfile.c or mips-tdump.c, so such a
patch wouldn't introduce much duplication.

> (There are many other instances of #if conditionals in those programs, all 
> of which are suspect since the programs are native-only for a single 
> target and so shouldn't need conditional compilation at all.  But those 
> other conditionals aren't relevant to target macro elimination.)

I strongly suspect this occured when the MIPS port no longer needed
mips-tfile, but didn't remove MIPS dependencies.

	Rainer

-- 
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Rainer Orth, Center for Biotechnology, Bielefeld University