static void WritePharSimple( unsigned_32 start )
/**********************************************/
{
simple_header header;
unsigned_32 file_size;
unsigned_32 header_size;
unsigned_32 extra;
unsigned_32 temp;
if( FmtData.type & MK_PHAR_REX ) {
SeekLoad( start + sizeof(simple_header) );
extra = start + sizeof( simple_header ) + WritePharRelocs();
header_size = MAKE_PARA( extra );
PadLoad( header_size - extra );
} else {
SeekLoad( start + MAKE_PARA( sizeof(simple_header) ) );
header_size = MAKE_PARA( sizeof(simple_header) ); // para align.
}
file_size = header_size + WritePharData( start + header_size );
DBIWrite();
if( FmtData.type & MK_PHAR_SIMPLE ) {
_HostU16toTarg( SIMPLE_SIGNATURE, header.signature );
} else {
_HostU16toTarg( REX_SIGNATURE, header.signature );
}
_HostU16toTarg( file_size % 512U, header.mod_size );
_HostU16toTarg( (file_size + 511U) / 512U, header.file_size );
_HostU16toTarg( Root->relocs, header.num_relocs );
_HostU16toTarg( header_size / 16, header.hdr_size );
extra = MemorySize() - file_size + header_size + 0xfff;
temp = FmtData.u.phar.mindata + extra;
if( temp < FmtData.u.phar.mindata ) temp = 0xffffffff;
_HostU16toTarg( temp >> 12, header.min_data );
temp = FmtData.u.phar.maxdata + extra;
if( temp < FmtData.u.phar.maxdata ) temp = 0xffffffff;
_HostU16toTarg( temp >> 12, header.max_data );
_HostU32toTarg( StackAddr.off, header.ESP );
_HostU16toTarg( 0, header.checksum );
_HostU32toTarg( StartInfo.addr.off, header.EIP );
_HostU16toTarg( 0x1E, header.reloc_offset );
_HostU16toTarg( 0, header.overlay_num );
/* allow header size to exceed 1M */
_HostU16toTarg( (header_size / (16*0x10000ul)) + 1, header.always_one );
SeekLoad( start );
WriteLoad( &header, sizeof( simple_header ) );
if( FmtData.type & MK_PHAR_SIMPLE ) {
PadLoad( 2 ); // header occupies a full paragraph.
}
}
static void WriteHeader32( void )
/* write 32-bit device header */
{
rdos_dev32_header exe_head;
unsigned_16 temp16;
unsigned_32 temp32;
SeekLoad( 0 );
_HostU16toTarg( RDOS_SIGNATURE_32, exe_head.signature );
_HostU32toTarg( StartInfo.addr.off, exe_head.EIP );
temp32 = (unsigned_32)CodeSize;
_HostU32toTarg( temp32, exe_head.code_size );
temp16 = (unsigned_16)FmtData.u.rdos.code_sel;
_HostU16toTarg( temp16, exe_head.code_sel );
temp32 = (unsigned_32)DataSize;
_HostU32toTarg( temp32, exe_head.data_size );
temp16 = (unsigned_16)FmtData.u.rdos.data_sel;
_HostU16toTarg( temp16, exe_head.data_sel );
WriteLoad( &exe_head, sizeof( rdos_dev32_header ) );
}
static void WriteMbootHeader( void )
/* write multiboot header */
{
struct mb_header mb_head;
unsigned_32 temp32;
unsigned_32 linear = MB_BASE;
SeekLoad( 0 );
_HostU32toTarg(0x1BADB002, mb_head.mb_magic );
_HostU32toTarg(0x00010001, mb_head.mb_flags );
_HostU32toTarg(0xE4514FFD, mb_head.mb_checksum );
_HostU32toTarg(linear, mb_head.mb_header_addr );
_HostU32toTarg(linear, mb_head.mb_load_addr );
linear += CodeSize + sizeof( struct mb_header );
_HostU32toTarg(linear, mb_head.mb_load_end_addr );
_HostU32toTarg(linear, mb_head.mb_bss_end_addr );
temp32 = MB_BASE + StartInfo.addr.off + sizeof( struct mb_header );
_HostU32toTarg(temp32, mb_head.mb_entry_addr );
WriteLoad( &mb_head, sizeof( struct mb_header ) );
}
void CVGenLines( lineinfo *info )
/*******************************/
// called during pass 2 linnum processing
{
ln_off_pair UNALIGN *pair;
unsigned_32 temp_off;
unsigned_16 temp_num;
offset adjust;
unsigned long cvsize;
unsigned size;
segdata *seg;
seg = info->seg;
size = info->size & ~LINE_IS_32BIT;
if( !( CurrMod->modinfo & DBI_LINE ) )
return;
adjust = seg->a.delta + seg->u.leader->seg_addr.off;
if( LineInfo.offbase == 0 ) { // this is our first time through.
LineInfo.seg = GetCVSegment( seg->u.leader );
LineInfo.linestart = SectAddrs[CVSECT_MISC];
cvsize = sizeof( cheesy_module_header ) + sizeof( cheesy_mapping_table )
+ ROUND_UP( sizeof( cheesy_file_table ) + strlen( CurrMod->name ), 4 );
LineInfo.offbase = SectAddrs[CVSECT_MISC] + cvsize;
LineInfo.numbase = LineInfo.offbase
+ CurrMod->d.cv->numlines * sizeof( unsigned_32 );
cvsize += CurrMod->d.cv->numlines * sizeof( unsigned_32 );
cvsize += ROUND_UP( CurrMod->d.cv->numlines * sizeof( unsigned_16 ), 4 );
GenSubSection( sstSrcModule, cvsize );
SectAddrs[CVSECT_MISC] += cvsize;
LineInfo.range.start = adjust;
LineInfo.range.end = adjust + seg->length;
} else {
if( adjust < LineInfo.range.start ) {
LineInfo.range.start = adjust;
}
if( adjust + seg->length > LineInfo.range.end ) {
LineInfo.range.end = adjust + seg->length;
}
}
pair = (ln_off_pair *)info->data;
if( info->size & LINE_IS_32BIT ) {
while( size > 0 ) {
pair->_386.off += adjust;
if( pair->_386.off < LineInfo.prevaddr ) {
LineInfo.needsort = TRUE;
}
LineInfo.prevaddr = pair->_386.off;
_HostU32toTarg( pair->_386.off, temp_off );
_HostU16toTarg( pair->_386.linnum, temp_num );
PutInfo( LineInfo.offbase, &temp_off, sizeof( unsigned_32 ) );
PutInfo( LineInfo.numbase, &temp_num, sizeof( unsigned_16 ) );
LineInfo.offbase += sizeof( unsigned_32 );
LineInfo.numbase += sizeof( unsigned_16 );
pair = (void *)( (char *)pair + sizeof( ln_off_386 ) );
size -= sizeof( ln_off_386 );
}
} else {
while( size > 0 ) {
pair->_286.off += adjust;
if( pair->_286.off < LineInfo.prevaddr ) {
LineInfo.needsort = TRUE;
}
LineInfo.prevaddr = pair->_286.off;
_HostU16toTarg( pair->_286.off, temp_off );
_HostU16toTarg( pair->_286.linnum, temp_num );
PutInfo( LineInfo.offbase, &temp_off, sizeof( unsigned_32 ) );
PutInfo( LineInfo.numbase, &temp_num, sizeof( unsigned_16 ) );
LineInfo.offbase += sizeof( unsigned_32 );
LineInfo.numbase += sizeof( unsigned_16 );
pair = (void *)( (char *)pair + sizeof( ln_off_286 ) );
size -= sizeof( ln_off_286 );
}
}
}
extern void FiniZdosLoadFile( void )
/*************************************/
{
zdos_exe_header header;
unsigned_32 position;
unsigned_32 size;
unsigned_32 checksum;
for( position = 0; position < 4; position ++ )
header.reserved[position] = 0;
checksum = ZDOS_SIGNATURE;
_HostU32toTarg( ZDOS_SIGNATURE, header.signature );
_HostU32toTarg( StartInfo.addr.off, header.EIP );
checksum += StackAddr.off;
_HostU32toTarg( StackAddr.off, header.ESP );
checksum += StackAddr.off;
_HostU32toTarg( sizeof( zdos_exe_header ), header.hdr_size );
checksum += sizeof( zdos_exe_header );
_HostU32toTarg( Root->relocs, header.num_relocs );
checksum += Root->relocs;
_HostU32toTarg( sizeof( zdos_exe_header ), header.reloc_offset );
checksum += sizeof( zdos_exe_header );
_HostU32toTarg( FmtData.base, header.reloc_base );
checksum += FmtData.base;
SeekLoad( sizeof(zdos_exe_header) );
position = sizeof( zdos_exe_header ) + WriteZdosRelocs();
_HostU32toTarg( position, header.image_offset );
checksum += position;
size = WriteZdosData( position );
_HostU32toTarg( size, header.image_size );
checksum += size;
position += size;
_HostU32toTarg( position, header.debug_offset );
checksum += position;
size = ( StackAddr.off - FmtData.base ) - size;
_HostU32toTarg( size, header.extra_size );
checksum += size;
_HostU32toTarg( size, header.chk_sum );
DBIWrite();
SeekLoad( 0 );
WriteLoad( &header, sizeof( zdos_exe_header ) );
}