binutils/gas/ehopt.c

233    difference.  We turn that into a rs_cfa_advance frag, and handle
377 	  /* This might be a DW_CFA_advance_loc4.  Record the frag and the
378 	     position within the frag, so that we can change it later.  */
393 	     subtracted were in the same frag and the expression was
421 	     of the assembly.  We set up a variant frag which we handle
444 /* The function estimates the size of a rs_cfa variant frag based on
449 eh_frame_estimate_size_before_relax (fragS *frag)
452   int ca = frag->fr_subtype >> 3;
455   diff = resolve_symbol_value (frag->fr_symbol);
466   frag->fr_subtype = (frag->fr_subtype & ~7) | ret;
471 /* This function relaxes a rs_cfa variant frag based on the current
473    the frag.  This returns the change in frag length.  */
476 eh_frame_relax_frag (fragS *frag)
480   oldsize = frag->fr_subtype & 7;
481   newsize = eh_frame_estimate_size_before_relax (frag);
485 /* This function converts a rs_cfa variant frag into a normal fill
486    frag.  This is called after all relaxation has been done.
487    fr_subtype{0:2} will be the desired length of the frag.  */
490 eh_frame_convert_frag (fragS *frag)
496   loc4_frag = (fragS *) frag->fr_opcode;
497   loc4_fix = (int) frag->fr_offset;
499   diff = resolve_symbol_value (frag->fr_symbol);
501   switch (frag->fr_subtype & 7)
505 	int ca = frag->fr_subtype >> 3;
514       frag->fr_literal[frag->fr_fix] = diff;
520       md_number_to_chars (frag->fr_literal + frag->fr_fix, diff, 2);
524       md_number_to_chars (frag->fr_literal + frag->fr_fix, diff, 4);
528   frag->fr_fix += frag->fr_subtype & 7;
529   frag->fr_type = rs_fill;
530   frag->fr_subtype = 0;
531   frag->fr_offset = 0;