//============================================================================
// main : Entry point.
//----------------------------------------------------------------------------
func main() {
var dwarfData *dwarf.Data
var theFile *macho.File
var theErr os.Error
var relativeAddress uint64
var runtimeAddress uint64
var loadAddress uint64
var segmentAddress uint64
var pathMacho string
var pathDsym string
// Parse our arguments
flag.Uint64Var(&runtimeAddress, "raddr", 0, "")
flag.Uint64Var(&loadAddress, "laddr", 0, "")
flag.StringVar(&pathMacho, "macho", "", "")
flag.StringVar(&pathDsym, "dsym", "", "")
flag.Parse()
if runtimeAddress == 0 || loadAddress == 0 || pathMacho == "" || pathDsym == "" {
printHelp()
}
// Find the text segment address
theFile, theErr = macho.Open(pathMacho)
if theErr != nil {
fatalError("Can't open Mach-O file: " + theErr.String())
}
segmentAddress = theFile.Segment("__TEXT").Addr
theFile.Close()
// Calculate the target address
relativeAddress = runtimeAddress - loadAddress
gTargetAddress = segmentAddress + relativeAddress
// Find the target
theFile, theErr = macho.Open(pathDsym)
if theErr != nil {
fatalError("Can't open .dsym file: " + theErr.String())
}
dwarfData, theErr = theFile.DWARF()
if theErr != nil {
fatalError("Can't find DWARF info: " + theErr.String())
}
processChildren(dwarfData.Reader(), 0, false)
theFile.Close()
}