target_offset_t SegmentAlignment( // SEGMENT: ALIGNMENT FOR SYMBOL
SYMBOL sym ) // - symbol to align
{
target_offset_t align;
TYPE type;
TYPE align_type;
if( CompFlags.dont_align_segs ) {
return( TARGET_CHAR );
}
#if _CPU == _AXP
if( PackAmount != TARGET_CHAR ) {
#else
if( OptSize <= 50 || PackAmount != TARGET_CHAR ) {
#endif
type = sym->sym_type;
align_type = AlignmentType( type );
align = segmentTypeSize( align_type );
if( align == TARGET_CHAR ) {
// no alignment; let PackAlignment know the real size
align = segmentTypeSize( type );
}
align = PackAlignment( TARGET_MAX_PACKING, align );
} else {
align = TARGET_CHAR;
}
return( align );
}
target_offset_t SegmentAdjust( // SEGMENT: ADJUST OFFSET TO ALIGN
fe_seg_id segid, // - segment identifier
target_size_t offset, // - current offset
target_offset_t align ) // - required aligment
{
target_size_t calc_offset;
target_offset_t adjust;
switch( segid ) {
case SEG_INIT_BEG:
case SEG_INIT_REF:
case SEG_INIT_END:
case SEG_FINI_BEG:
case SEG_FINI_REF:
case SEG_FINI_END:
/* no padding in these segments */
return( 0 );
}
calc_offset = offset;
calc_offset += align - 1;
calc_offset &= ~(((target_size_t) align ) - 1 );
adjust = calc_offset - offset;
_CHECK_ADJUST( adjust, calc_offset, offset );
return( adjust );
}
static unsigned cg_defined_type( // GET DEFINED TYPE
TYPE type, // - C++ type
CGREFNO *refno ) // - addr( reference # for type )
{
CGREFNO retn; // - returned type
retn = *refno;
if( retn == NULL_CGREFNO ) {
retn = cg_new_type( CgMemorySize( type ), CgMemorySize( AlignmentType( type ) ) );
*refno = retn;
}
return( retn );
}