bool DepositLightCore::prepare() {
DYSECTVERBOSE(true, "Preparing deposit light core action");
#ifdef CALLPATH_ENABLED
prepared = true;
findAggregates();
string libraryPath;
char *envValue;
Domain *domain = owner->getDomain();
bool boolRet;
vector<Process::ptr>::iterator procIter;
ProcessSet::ptr procs;
WalkerSet *allWalkers;
Process::ptr *proc;
ProcDebug *pDebug;
if(domain == NULL)
return DYSECTWARN(false, "Domain not found when preparing DepositLightCore action");
allWalkers = domain->getAllWalkers();
DYSECTVERBOSE(true, "Preparing deposit light core action %d", allWalkers->size());
envValue = getenv("STAT_PREFIX");
if (envValue != NULL)
libraryPath = envValue;
else
libraryPath = STAT_PREFIX;
libraryPath += "/lib/libcallpathwrap.so";
for (WalkerSet::iterator i = allWalkers->begin(); i != allWalkers->end(); i++) {
pDebug = dynamic_cast<ProcDebug *>((*i)->getProcessState());
proc = &(pDebug->getProc());
DYSECTVERBOSE(true, "loading library %s", libraryPath.c_str());
// This will fail in launch mode since process hasn't been started yet. We will also try loading the library on finishBE
// This will also be called multiple times if multiple probes use this action, but this won't result in any errors
if (Backend::loadLibrary(*proc, libraryPath) != OK) {
return DYSECTWARN(false, "Failed to load library %s: %s", libraryPath.c_str(), Stackwalker::getLastErrorMsg());
}
}
DYSECTVERBOSE(true, "Prepared deposit light core action");
#endif //ifdef CALLPATH_ENABLED
return true;
}
bool Location::resolveExpression() {
// Location expression parsed:
//
// loc_expr ::= image '#' file '#' line
// | image '#' symbol
// | file '#' line
// | symbol
vector<string> tokens = Parser::tokenize(locationExpr, '#');
int numTokens = tokens.size();
Walker* proc = 0;
if(numTokens > 0) {
// XXX: Make this local to domain
WalkerSet* walkerSet = Backend::getWalkerset();
if(!walkerSet) {
return Err::warn(false, "Walkerset not present");
}
WalkerSet::iterator procIter = walkerSet->begin();
proc = *procIter;
}
if(numTokens == 1) { // symbol
string &symbol = tokens[0];
if(!proc) {
return Err::warn(false, "Walker could not be retrieved from walkerSet");
}
if(!DysectAPI::CodeLocation::findSymbol(proc, symbol, codeLocations)) {
return Err::warn(false, "No symbols found for symbol %s", symbol.c_str());
}
} else if(numTokens == 2) { // file '#' line
int line = atoi(tokens[1].c_str());
if(line > 0) { // File '#' line
string& file = tokens[0];
if(!DysectAPI::CodeLocation::findFileLine(proc, file, line, codeLocations)) {
return Err::warn(false, "Location for '%s#%d' not found", file.c_str(), line);
}
} else { // Image '#' symbol
Symtab* symtab;
string libName;
string& image = tokens[0];
string& symbol = tokens[1];
// XXX: Move this to CodeLocation
bool isRegex = false;
int pos = symbol.find_first_of("*?");
if(pos != string::npos) {
isRegex = true;
}
if(SymbolTable::findSymtabByName(image, proc, symtab, libName) != OK) {
return Err::warn(false, "Could not find image '%s'", image.c_str());
}
if(!CodeLocation::findSymbol(symtab, symbol, libName, codeLocations, isRegex)) {
return Err::warn(false, "Location for symbol '%s' in image '%s' not found", symbol.c_str(), image.c_str());
}
}
} else if(numTokens == 3) { // image '#' file '#' line
Symtab* symtab;
string libName;
string& image = tokens[0];
string& file = tokens[1];
int line = atoi(tokens[2].c_str());
if(line <= 0) {
return Err::warn(false, "Line number for format image#file#line must be an integer");
}
if(SymbolTable::findSymtabByName(image, proc, symtab, libName) != OK) {
return Err::warn(false, "Could not find image '%s'", image.c_str());
}
if(!CodeLocation::findFileLine(symtab, file, line, libName, codeLocations)) {
return Err::warn(false, "Location for '%s:%d' in image '%s' not found", file.c_str(), line, image.c_str());
}
} else {
return Err::warn(false, "Cannot resolve location '%s' - unknown format", locationExpr.c_str());
}
return true;
}
