[Patch] [MIPS] Add support for the R_MIPS_EH relocation

[Moore, Catherine]

Updated patch attached.  OK?


> -----Original Message-----
> From: Richard Sandiford [mailto:rdsandiford@googlemail.com]
> Sent: Saturday, May 04, 2013 5:34 AM
> To: Moore, Catherine
> Cc: binutils@sourceware.org
> Subject: Re: [Patch] [MIPS] Add support for the R_MIPS_EH relocation
> 
> Looks good, but:
> 
> "Moore, Catherine" <Catherine_Moore@mentor.com> writes:
> > Index: bfd/elf32-mips.c
> >
> ==========================================================
> =========
> > RCS file: /cvs/src/src/bfd/elf32-mips.c,v retrieving revision 1.215
> > diff -p -u -r1.215 elf32-mips.c
> > --- bfd/elf32-mips.c	21 Feb 2013 03:02:29 -0000	1.215
> > +++ bfd/elf32-mips.c	2 May 2013 20:00:53 -0000
> > @@ -1538,6 +1538,22 @@ static reloc_howto_type elf_mips_jump_sl
> >  	 0x0,		        /* dst_mask */
> >  	 FALSE);		/* pcrel_offset */
> >
> > +/* Used in EH tables.  */
> > +static reloc_howto_type elf_mips_eh_howto =
> > +  HOWTO (R_MIPS_EH,		/* type */
> > +	 0,			/* rightshift */
> > +	 2,			/* size (0 = byte, 1 = short, 2 = long) */
> > +	 32,			/* bitsize */
> > +	 FALSE,			/* pc_relative */
> > +	 0,			/* bitpos */
> > +	 complain_overflow_signed, /* complain_on_overflow */
> > +	 bfd_elf_generic_reloc,	/* special_function */
> 
> Please use _bfd_mips_elf_generic_reloc instead.  Same for n32 and 64.
> 
> > @@ -17813,6 +17814,9 @@ mips_fix_adjustable (fixS *fixp)
> >        && (fixp->fx_pcrel || jalr_reloc_p (fixp->fx_r_type)))
> >      return 0;
> >
> > +  if (fixp->fx_r_type == BFD_RELOC_MIPS_EH)
> > +    return 0;
> > +
> 
> Please add a comment saying why EH relocs can't be made section-relative.
> 
> Richard
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