static label_entry handleLabels( char *sec_name, orl_sec_offset offset, orl_sec_offset end,
label_entry l_entry, orl_sec_size size )
// handle any labels at this offset and skip all unused non-label symbols
{
bool is32bit;
is32bit = ( size >= 0x10000 );
for( ; ( l_entry != NULL ) && ( l_entry->offset < end ); l_entry = l_entry->next ) {
switch( l_entry->type ) {
case LTYP_SECTION:
case LTYP_NAMED:
if( strcmp( l_entry->label.name, sec_name ) == 0 )
continue;
/* fall through */
case LTYP_UNNAMED:
if( l_entry->offset > offset )
return( l_entry );
break;
case LTYP_ABSOLUTE:
case LTYP_FUNC_INFO:
default:
continue;
}
switch( l_entry->type ) {
case LTYP_NAMED:
if( !( DFormat & DFF_ASM ) ) {
if( offset != 0 && l_entry->binding == ORL_SYM_BINDING_GLOBAL ) {
routineSize = offset - routineBase;
BufferConcatNL();
BufferMsg( ROUTINE_SIZE );
BufferStore(" %d ", routineSize );
BufferMsg( BYTES );
BufferConcat(", ");
BufferMsg( ROUTINE_BASE );
BufferStore(" %s + %04X\n\n", sec_name, routineBase );
routineBase = offset;
}
}
case LTYP_SECTION:
if( !( DFormat & DFF_ASM ) ) {
PrintLinePrefixAddress( offset, is32bit );
BufferAlignToTab( PREFIX_SIZE_TABS );
}
BufferStore( "%s:\n", l_entry->label.name );
break;
case LTYP_UNNAMED:
if( !( DFormat & DFF_ASM ) ) {
PrintLinePrefixAddress( offset, is32bit );
BufferAlignToTab( PREFIX_SIZE_TABS );
}
BufferStore( "%c$%d:\n", LabelChar, l_entry->label.number );
break;
}
BufferPrint();
}
return( l_entry );
}
num_errors DoPass2( section_ptr sec, unsigned_8 *contents, orl_sec_size size,
label_list sec_label_list, ref_list sec_ref_list )
// perform pass 2 on one section
{
struct pass2 data;
label_entry l_entry;
dis_dec_ins decoded;
char name[ MAX_INS_NAME ];
char ops[ MAX_OBJ_NAME + 24 ]; // at most 1 label/relocation per instruction, plus room for registers, brackets and other crap
dis_inst_flags flags;
scantab_ptr st;
int is_intel;
sa_disasm_struct sds;
char *FPU_fixup;
int pos_tabs;
bool is32bit;
routineBase = 0;
st = sec->scan;
data.size = size;
sds.data = contents;
sds.last = size - 1;
l_entry = NULL;
if( sec_label_list != NULL ) {
l_entry = sec_label_list->first;
}
if( sec_ref_list != NULL ) {
data.r_entry = sec_ref_list->first;
} else {
data.r_entry = NULL;
}
data.disassembly_errors = 0;
if( source_mix ) {
GetSourceFile( sec );
}
PrintHeader( sec );
if( size && sec_label_list )
PrintAssumeHeader( sec );
flags.u.all = DIF_NONE;
if( GetMachineType() == ORL_MACHINE_TYPE_I386 ) {
if( ( GetFormat() != ORL_OMF ) ||
( ORLSecGetFlags( sec->shnd ) & ORL_SEC_FLAG_USE_32 ) ) {
flags.u.x86 = DIF_X86_USE32_FLAGS;
}
is_intel = 1;
} else {
is_intel = IsIntelx86();
}
is32bit = ( size >= 0x10000 );
for( data.loop = 0; data.loop < size; data.loop += decoded.size ) {
// process data in code segment
while( st && ( data.loop > st->end ) ) {
st = st->next;
}
if( st && ( data.loop >= st->start ) ) {
decoded.size = 0;
processDataInCode( sec, contents, &data, st->end - data.loop, &l_entry );
st = st->next;
continue;
}
// data may not be listed in scan table, but a fixup at this offset will
// give it away
while( data.r_entry && ( data.r_entry->offset < data.loop ) ) {
data.r_entry = data.r_entry->next;
}
FPU_fixup = processFpuEmulatorFixup( &data.r_entry, data.loop );
if( data.r_entry && ( data.r_entry->offset == data.loop ) ) {
if( is_intel || IsDataReloc( data.r_entry ) ) {
// we just skip the data
decoded.size = 0;
processDataInCode( sec, contents, &data, RelocSize( data.r_entry ), &l_entry );
continue;
}
}
if( source_mix ) {
MixSource( data.loop );
}
DisDecodeInit( &DHnd, &decoded );
decoded.flags.u.all |= flags.u.all;
sds.offs = data.loop;
DisDecode( &DHnd, &sds, &decoded );
if( sec_label_list ) {
l_entry = handleLabels( sec->name, data.loop, data.loop + decoded.size, l_entry, size );
if( ( l_entry != NULL )
&& ( l_entry->offset > data.loop )
&& ( l_entry->offset < data.loop + decoded.size ) ) {
/*
If we have a label planted in the middle of this
instruction (see inline memchr for example), put
out a couple of data bytes, and then restart decode
and label process from offset of actual label.
*/
decoded.size = 0;
processDataInCode( sec, contents, &data, l_entry->offset - data.loop, &l_entry );
continue;
}
}
DisFormat( &DHnd, &data, &decoded, DFormat, name, sizeof( name ), ops, sizeof( ops ) );
if( FPU_fixup != NULL ) {
if( !(DFormat & DFF_ASM) ) {
BufferAlignToTab( PREFIX_SIZE_TABS );
}
BufferStore( "\t%sFPU fixup %s\n", CommentString, FPU_fixup );
}
if( !(DFormat & DFF_ASM) ) {
unsigned_64 *tmp_64;
unsigned_32 *tmp_32;
unsigned_16 *tmp_16;
tmp_64 = (unsigned_64 *)(contents + data.loop);
tmp_32 = (unsigned_32 *)(contents + data.loop);
tmp_16 = (unsigned_16 *)(contents + data.loop);
if( DHnd.need_bswap ) {
switch( DisInsSizeInc( &DHnd ) ) {
//case 8: SWAP_64( *tmp_64 );
// break;
case 4: SWAP_32( *tmp_32 );
break;
case 2: SWAP_16( *tmp_16 );
break;
default:
break;
}
}
PrintLinePrefixAddress( data.loop, is32bit );
PrintLinePrefixData( contents, data.loop, size, DisInsSizeInc( &DHnd ), decoded.size );
BufferAlignToTab( PREFIX_SIZE_TABS );
}
BufferStore( "\t%s", name );
if( *ops != '\0' ) {
pos_tabs = ( DisInsNameMax( &DHnd ) + TAB_WIDTH ) / TAB_WIDTH + 1;
if( !(DFormat & DFF_ASM) ) {
pos_tabs += PREFIX_SIZE_TABS;
}
BufferAlignToTab( pos_tabs );
BufferConcat( ops );
}
BufferConcatNL();
BufferPrint();
}
if( sec_label_list ) {
l_entry = handleLabels( sec->name, size, (orl_sec_offset)-1, l_entry, size );
}
if( !(DFormat & DFF_ASM) ) {
routineSize = data.loop - routineBase;
BufferConcatNL();
BufferMsg( ROUTINE_SIZE );
BufferStore(" %d ", routineSize );
BufferMsg( BYTES );
BufferConcat(", ");
BufferMsg( ROUTINE_BASE );
BufferStore(" %s + %04X\n\n", sec->name, routineBase );
BufferPrint();
}
if( source_mix ) {
EndSourceMix();
}
PrintTail( sec );
return( data.disassembly_errors );
}
return_val DumpPDataSection( section_ptr sec, unsigned_8 *contents,
orl_sec_size size, unsigned pass )
{
orl_sec_offset loop;
hash_data * data_ptr;
ref_list r_list;
ref_entry r_entry;
descriptor_struct descriptor;
bool is32bit;
if( pass == 1 ) return( OKAY );
if( size == 0 ) return( OKAY );
is32bit = ( size >= 0x10000 );
data_ptr = HashTableQuery( HandleToRefListTable, (hash_value)sec->shnd );
if( *data_ptr ) {
r_list = (ref_list)*data_ptr;
if( r_list ) {
r_entry = r_list->first;
} else {
r_entry = NULL;
}
}
BufferConcatNL();
PrintHeader( sec );
BufferConcatNL();
for( loop = 0; loop < size; loop += sizeof( descriptor_struct ) ) {
if( r_entry == NULL ) break;
memcpy( &descriptor, contents + loop, sizeof( descriptor_struct ) );
if( DFormat & DFF_ASM ) {
BufferStore( "\t\t" );
BufferStore( "%s %04X\t\t", CommentString, loop );
} else {
PrintLinePrefixAddress( loop, is32bit );
BufferAlignToTab( PREFIX_SIZE_TABS );
BufferStore( "%s ", CommentString );
}
BufferMsg( PROCEDURE_DESCRIPTOR );
/* Skip over pair relocs */
while( r_entry && (r_entry->type == ORL_RELOC_TYPE_PAIR || r_entry->offset < loop) ) {
r_entry = r_entry->next;
}
switch( r_entry->label->type ) {
case LTYP_EXTERNAL_NAMED:
BufferStore( "%s", r_entry->label->label.name );
break;
case LTYP_NAMED:
case LTYP_SECTION:
case LTYP_GROUP:
BufferStore( "%s", r_entry->label->label.name );
break;
default:
BufferStore( "%c$%d", LabelChar, r_entry->label->label.number );
break;
}
BufferConcatNL();
printDescriptor( loop, &descriptor, &r_entry );
}
return( OKAY );
}
