/*
* Given a set of object and library files, prepare to use fuzzy linking.
* If symbols cannot be collected from a file, 'callback' will be called
* with the name of the offending file.
*/
void InitFuzzy( const char *objs[], const char *libs[],
const char *libpaths[], FuzzyInitCallback callback )
/******************************************************************/
{
unsigned count;
orl_handle o_hnd;
int rc = 1;
DllToolCallbacks dllcallbacks;
ORLSetFuncs( orl_cli_funcs, obj_read, obj_seek, AllocMem, FreeMem );
/*** Create a hash table ***/
hashtable = InitHash( HASH_TABLE_SIZE, hash_symbol_name, hash_compare );
/*** Collect all external symbols from the specified object files ***/
if( objs != NULL ) {
/*** Initialize ORL ***/
o_hnd = ORLInit( &orl_cli_funcs );
if( o_hnd == NULL ) {
FatalError( "Got NULL orl_handle." );
}
/*** Scan the file(s) ***/
for( count=0; objs[count]!=NULL; count++ ) {
if( !handle_obj_file( objs[count], o_hnd ) ) {
rc = (*callback)( objs[count] );
if( !rc ) break;
}
}
/*** Tell ORL to go away ***/
if( ORLFini( o_hnd ) != ORL_OKAY ) {
Warning( "Error calling ORLFini." );
}
free_list( bufflist );
}
if( !rc ) return;
/*** Collect all external symbols from the specified library files ***/
if( libs != NULL ) {
/*** Load the WLIB DLL ***/
dllcallbacks.printmessage = NULL;
dllcallbacks.printmessageCRLF = print_message_crlf;
dllcallbacks.printwithinfo2 = print_with_info2;
dllcallbacks.printwithinfo = print_with_info;
dllcallbacks.cookie = NULL;
dllhandle = InitDllTool( DLLTOOL_WLIB, &dllcallbacks );
if( dllhandle == NULL ) {
Warning( "Cannot load WLIB DLL -- fuzzy name matching may not work" );
} else {
/*** Scan the file(s) ***/
for( count=0; libs[count]!=NULL; count++ ) {
if( !handle_lib_file( libs[count], libpaths ) ) {
rc = (*callback)( libs[count] );
if( !rc ) break;
}
}
FiniDllTool( dllhandle );
}
}
}
void InitObj( void )
/******************/
{
OrlFuncs.read = &ObjRead;
OrlFuncs.seek = &ObjSeek;
OrlFuncs.alloc = &ObjAlloc;
OrlFuncs.free = &ObjFree;
ORLHnd = ORLInit( &OrlFuncs );
if( ORLHnd == NULL ) {
longjmp( Env , 1 );
}
}
bool InitORL( void )
//******************
// Try and see if we will use ORL. Returns true if we'll use it.
{
orl_file_flags o_flags;
orl_file_format o_format;
orl_machine_type o_machine_type;
ORLFileHnd = NULL;
oFuncs.alloc = AllocMem;
oFuncs.free = FreeMem;
oFuncs.read = (void * (*) ( void *, int ))buffRead;
oFuncs.seek = (long int (*) ( void *, long int, int ))buffSeek;
ORLHnd = ORLInit( &oFuncs );
if( !ORLHnd ) {
SysError( ERR_OUT_OF_MEM, false );
}
initBuffer( &fileBuff, ObjFile );
o_format = ORLFileIdentify( ORLHnd, &fileBuff );
if( o_format != ORL_ELF && o_format != ORL_COFF ) {
ORLFini( ORLHnd );
finiBuffer( &fileBuff );
ORLHnd = NULL;
return( false ); // Will use ParseObjectOMF
}
ORLFileHnd = ORLFileInit( ORLHnd, &fileBuff, o_format );
if( !ORLFileHnd ) {
ORLFini( ORLHnd );
finiBuffer( &fileBuff );
SysError( ERR_OUT_OF_MEM, false );
}
o_machine_type = ORLFileGetMachineType( ORLFileHnd );
if( o_machine_type != ORL_MACHINE_TYPE_I386 ) {
FiniORL();
Error( ERR_ORL_INV_MACHINE_TYPE, true );
exit( 1 );
}
o_flags = ORLFileGetFlags( ORLFileHnd );
if( !(o_flags & ORL_FILE_FLAG_LITTLE_ENDIAN) ) {
FiniORL();
Error( ERR_ORL_INV_BYTE_ORDER, true );
exit( 1 );
}
UseORL = true;
createHashTables();
return( true ); // Success: will use ORL
}
static return_val initORL( void )
{
orl_file_flags flags;
orl_machine_type machine_type;
orl_return o_error = ORL_OKAY;
orl_file_format type;
bool byte_swap;
ORLSetFuncs( orl_cli_funcs, objRead, objSeek, MemAlloc, MemFree );
ORLHnd = ORLInit( &orl_cli_funcs );
if( ORLHnd != ORL_NULL_HANDLE ) {
type = ORLFileIdentify( ORLHnd, NULL );
if( type == ORL_UNRECOGNIZED_FORMAT ) {
PrintErrorMsg( RC_OKAY, WHERE_NOT_COFF_ELF );
return( RC_ERROR );
}
ObjFileHnd = ORLFileInit( ORLHnd, NULL, type );
if( ObjFileHnd != ORL_NULL_HANDLE ) {
// check byte order
flags = ORLFileGetFlags( ObjFileHnd );
byte_swap = false;
#ifdef __BIG_ENDIAN__
if( flags & ORL_FILE_FLAG_LITTLE_ENDIAN ) {
byte_swap = true;
}
#else
if( flags & ORL_FILE_FLAG_BIG_ENDIAN ) {
byte_swap = true;
}
#endif
// check intended machine type
machine_type = GetMachineType();
switch( machine_type ) {
// If there's no machine specific code, the CPU we choose shouldn't
// matter; there are some object files like this.
case ORL_MACHINE_TYPE_NONE:
case ORL_MACHINE_TYPE_ALPHA:
if( DisInit( DISCPU_axp, &DHnd, byte_swap ) != DR_OK ) {
ORLFini( ORLHnd );
PrintErrorMsg( RC_OKAY, WHERE_UNSUPPORTED_PROC );
return( RC_ERROR );
}
break;
case ORL_MACHINE_TYPE_PPC601:
if( DisInit( DISCPU_ppc, &DHnd, byte_swap ) != DR_OK ) {
ORLFini( ORLHnd );
PrintErrorMsg( RC_OKAY, WHERE_UNSUPPORTED_PROC );
return( RC_ERROR );
}
// PAS assembler expects "", not \" for quotes.
if( (Options & METAWARE_COMPATIBLE) == 0 ) {
QuoteChar = '\"';
}
break;
case ORL_MACHINE_TYPE_R3000:
case ORL_MACHINE_TYPE_R4000:
if( DisInit( DISCPU_mips, &DHnd, byte_swap ) != DR_OK ) {
ORLFini( ORLHnd );
PrintErrorMsg( RC_OKAY, WHERE_UNSUPPORTED_PROC );
return( RC_ERROR );
}
break;
case ORL_MACHINE_TYPE_I386:
case ORL_MACHINE_TYPE_I8086:
if( DisInit( DISCPU_x86, &DHnd, byte_swap ) != DR_OK ) {
ORLFini( ORLHnd );
PrintErrorMsg( RC_OKAY, WHERE_UNSUPPORTED_PROC );
return( RC_ERROR );
}
break;
case ORL_MACHINE_TYPE_AMD64:
if( DisInit( DISCPU_x64, &DHnd, byte_swap ) != DR_OK ) {
ORLFini( ORLHnd );
PrintErrorMsg( RC_OKAY, WHERE_UNSUPPORTED_PROC );
return( RC_ERROR );
}
break;
case ORL_MACHINE_TYPE_SPARC:
case ORL_MACHINE_TYPE_SPARCPLUS:
if( DisInit( DISCPU_sparc, &DHnd, byte_swap ) != DR_OK ) {
ORLFini( ORLHnd );
PrintErrorMsg( RC_OKAY, WHERE_UNSUPPORTED_PROC );
return( RC_ERROR );
}
break;
default:
ORLFini( ORLHnd );
PrintErrorMsg( RC_OKAY, WHERE_UNSUPPORTED_PROC );
return( RC_ERROR );
}
return( RC_OKAY );
} else {
o_error = ORLGetError( ORLHnd );
ORLFini( ORLHnd );
// An "out of memory" error is not necessarily what it seems.
// The ORL returns this error when encountering a bad or
// unrecognized object file record.
if( o_error == ORL_OUT_OF_MEMORY ) {
PrintErrorMsg( RC_OUT_OF_MEMORY, WHERE_OPENING_ORL );
return( RC_OUT_OF_MEMORY );
} else {
PrintErrorMsg( RC_ERROR, WHERE_OPENING_ORL );
return( RC_ERROR );
}
}
} else {
return( RC_OUT_OF_MEMORY );
}
}
void InitObjORL( void )
/****************************/
{
ORLHandle = ORLInit( &ORLFuncs );
ReadCacheList = NULL;
}
int main( int argc, char *argv[] )
/********************************/
{
orl_handle o_hnd;
orl_file_handle o_fhnd;
orl_funcs funcs;
int file;
orl_file_flags file_flags;
orl_machine_type machine_type;
orl_file_type file_type;
orl_file_format type;
int c;
int sep;
char *secs[MAX_SECS];
int num_secs = 0;
if( argc < 2 ) {
printf( "Usage: objread [-ahrsSx] [-o<section>] <objfile>\n" );
printf( "Where <objfile> is a COFF, ELF or OMF object file\n" );
printf( "objread reads and dumps an object using ORL\n" );
printf( "Options: -a dumps all information (except hex dump)\n" );
printf( " -h dumps file header information\n" );
printf( " -r dumps relocation information\n" );
printf( " -s dumps symbol table\n" );
printf( " -S dumps section information\n" );
printf( " -x get hex dump of section content\n" );
printf( " -o only scan <section> for info\n" );
return( 1 );
}
while( (c = getopt( argc, argv, "axhrsSo:" )) != EOF ) {
switch( c ) {
case 'a':
dump.relocs++;
dump.header++;
dump.symbols++;
dump.sections++;
break;
case 'x':
dump.sec_contents++;
break;
case 'h':
dump.header++;
break;
case 'r':
dump.relocs++;
break;
case 's':
dump.symbols++;
break;
case 'S':
dump.sections++;
break;
case 'o':
secs[num_secs++] = optarg;
break;
default:
// error occured
exit(1);
};
};
if( optind != argc - 1 ) {
fprintf( stderr, "must specify 1 filename\n" );
exit(1);
}
file = open( argv[optind], O_BINARY | O_RDONLY );
if( file == -1 ) {
printf( "Error opening file.\n" );
return( 2 );
}
TRMemOpen();
funcs.read = &objRead;
funcs.seek = &objSeek;
funcs.alloc = &TRMemAlloc;
funcs.free = &TRMemFree;
o_hnd = ORLInit( &funcs );
if( o_hnd == NULL ) {
printf( "Got NULL orl_handle.\n" );
return( 2 );
}
type = ORLFileIdentify( o_hnd, (void *)file );
if( type == ORL_UNRECOGNIZED_FORMAT ) {
printf( "The object file is not in either ELF, COFF or OMF format." );
return( 1 );
}
switch( type ) {
case ORL_ELF:
printf( "ELF" );
break;
case ORL_COFF:
printf( "COFF" );
break;
case ORL_OMF:
printf( "OMF" );
break;
default:
printf( "Unknown" );
break;
}
printf( " object file.\n" );
o_fhnd = ORLFileInit( o_hnd, (void *)file, type );
if( o_fhnd == NULL ) {
printf( "Got NULL orl_file_handle.\n" );
return( 2 );
}
if( dump.header ) {
printf( "File %s:\n", argv[optind] );
machine_type = ORLFileGetMachineType( o_fhnd );
printf( "Machine Type: " );
if( machine_type >= ( sizeof( machType ) / sizeof( *machType ) ) ) {
// We've probably added some new types?
printf( "?(%d)", machine_type );
} else {
printf( "%s", machType[ machine_type ] );
}
file_type = ORLFileGetType( o_fhnd );
printf( " (" );
switch( file_type ) {
case ORL_FILE_TYPE_NONE:
printf( "file_type_none" );
break;
case ORL_FILE_TYPE_OBJECT:
printf( "object file" );
break;
case ORL_FILE_TYPE_EXECUTABLE:
printf( "executable" );
break;
case ORL_FILE_TYPE_SHARED_OBJECT:
printf( "shared object" );
break;
case ORL_FILE_TYPE_DLL:
printf( "DLL" );
break;
default:
printf( "unknown file type?" );
break;
}
printf( ")\n" );
file_flags = ORLFileGetFlags( o_fhnd );
//printf(" File flags=0x%x\n", file_flags );
sep = 0;
if( file_flags & ORL_FILE_FLAG_LINE_NUMS_STRIPPED ) {
printf( "line number info stripped" );
sep = 1;
}
if( file_flags & ORL_FILE_FLAG_RELOCS_STRIPPED ) {
if( sep++ ) printf( ", " );
printf( "relocs stripped" );
}
if( file_flags & ORL_FILE_FLAG_LOCAL_SYMS_STRIPPED ) {
if( sep++ ) printf( ", " );
printf( "local symbols stripped" );
}
if( file_flags & ORL_FILE_FLAG_DEBUG_STRIPPED ) {
if( sep++ ) printf( ", " );
printf( "debug info stripped" );
}
if( file_flags & ORL_FILE_FLAG_16BIT_MACHINE ) {
if( sep++ ) printf( ", " );
printf( "for 16-bit machine" );
}
if( file_flags & ORL_FILE_FLAG_32BIT_MACHINE ) {
if( sep++ ) printf( ", " );
printf( "for 32-bit machine" );
}
if( file_flags & ORL_FILE_FLAG_64BIT_MACHINE ) {
if( sep++ ) printf( ", " );
printf( "for 64-bit machine" );
}
if( file_flags & ORL_FILE_FLAG_LITTLE_ENDIAN ) {
if( sep++ ) printf( ", " );
printf( "little-endian byte order" );
}
if( file_flags & ORL_FILE_FLAG_BIG_ENDIAN ) {
if( sep++ ) printf( ", " );
printf( "big-endian byte order" );
}
if( file_flags & ORL_FILE_FLAG_SYSTEM ) {
if( sep++ ) printf( ", " );
printf( "system file" );
}
if( sep ) printf( "\n" );
}
if( num_secs ) {
for( c = 0; c < num_secs; c++ ) {
sectionFound = 0;
if( ORLFileScan( o_fhnd, secs[c], &PrintSecInfo ) != ORL_OKAY ) {
printf( "Error occured in scanning section '%s'.\n", secs[c] );
}
if( !sectionFound ) {
printf( "Section '%s' not found in object.\n", secs[c] );
}
}
} else {
if( ORLFileScan( o_fhnd, NULL, &PrintSecInfo ) != ORL_OKAY ) {
printf( "Error occured in scanning file.\n" );
return( 2 );
}
}
if( ORLFileScan( o_fhnd, ".symtab", &PrintSymTable ) != ORL_OKAY ) {
printf( "Error occured in scanning file for symbol table\n" );
return( 2 );
}
if( ORLFileFini( o_fhnd ) != ORL_OKAY ) {
printf( "Error calling ORLFileFini.\n" );
return( 2 );
}
if( close( file ) == -1 ) {
printf( "Error closing file.\n" );
return( 2 );
}
if( ORLFini( o_hnd ) != ORL_OKAY ) {
printf( "Error calling ORLFini.\n" );
}
freeBuffList();
#ifdef TRMEM
TRMemPrtList();
#endif
TRMemClose();
return( 0 );
}
int main( int argc, char *argv[] )
/********************************/
{
orl_handle o_hnd;
orl_file_handle o_fhnd;
orl_file_format type;
orl_file_flags o_flags;
FILE *fp;
int c;
char *secs[MAX_SECS];
int num_secs = 0;
ORLSetFuncs( orl_cli_funcs, objRead, objSeek, TRMemAlloc, TRMemFree );
if( argc < 2 ) {
printf( "Usage: dwdump <file>\n" );
printf( "Where <file> is a COFF, ELF or OMF object file\n" );
printf( "dwdump reads and dumps DWARF debugging information\n" );
return( EXIT_SUCCESS );
}
dump.sections++;
fp = fopen( argv[1], "rb" );
if( fp == NULL ) {
printf( "Error opening file.\n" );
return( EXIT_FAILURE );
}
TRMemOpen();
o_hnd = ORLInit( &orl_cli_funcs );
if( o_hnd == NULL ) {
printf( "Got NULL orl_handle.\n" );
return( EXIT_FAILURE );
}
type = ORLFileIdentify( o_hnd, fp );
if( type == ORL_UNRECOGNIZED_FORMAT ) {
printf( "The object file is not in either ELF, COFF or OMF format." );
return( EXIT_FAILURE );
}
switch( type ) {
case ORL_OMF:
printf( "OMF" );
break;
case ORL_ELF:
printf( "ELF" );
break;
case ORL_COFF:
printf( "COFF" );
break;
default:
printf( "Unknown" );
break;
}
printf( " object file.\n" );
o_fhnd = ORLFileInit( o_hnd, fp, type );
if( o_fhnd == NULL ) {
printf( "Got NULL orl_file_handle.\n" );
return( EXIT_FAILURE );
}
o_flags = ORLFileGetFlags( o_fhnd );
#ifdef __BIG_ENDIAN__
if( o_flags & ORL_FILE_FLAG_LITTLE_ENDIAN ) {
byte_swap = true;
}
#else
if( o_flags & ORL_FILE_FLAG_BIG_ENDIAN ) {
byte_swap = true;
}
#endif
if( num_secs ) {
for( c = 0; c < num_secs; c++ ) {
sectionFound = 0;
if( ORLFileScan( o_fhnd, secs[c], &DoSection ) != ORL_OKAY ) {
printf( "Error occured in scanning section '%s'.\n", secs[c] );
}
if( !sectionFound ) {
printf( "Section '%s' not found in object.\n", secs[c] );
}
}
} else {
if( ORLFileScan( o_fhnd, NULL, &DoSection ) != ORL_OKAY ) {
printf( "Error occured in scanning file.\n" );
return( EXIT_FAILURE );
}
}
setSects( o_fhnd );
if( ORLFileFini( o_fhnd ) != ORL_OKAY ) {
printf( "Error calling ORLFileFini.\n" );
return( EXIT_FAILURE );
}
if( fclose( fp ) ) {
printf( "Error closing file.\n" );
return( EXIT_FAILURE );
}
if( ORLFini( o_hnd ) != ORL_OKAY ) {
printf( "Error calling ORLFini.\n" );
}
DumpSections();
freeBuffList();
#ifdef TRMEM
TRMemPrtList();
#endif
TRMemClose();
return( EXIT_SUCCESS );
}
