// Hold the entire set of breakpoints, and sift breakpoints by function and
// class name into separate containers for later.
void DebuggerProxy::setBreakPoints(BreakPointInfoPtrVec &breakpoints) {
TRACE(2, "DebuggerProxy::setBreakPoints\n");
// Hold the break mutex while we update the proxy's state. There's no need
// to hold it over the longer operation to set breakpoints in each file later.
{
WriteLock lock(m_breakMutex);
m_breakpoints = breakpoints;
m_hasBreakPoints = !m_breakpoints.empty();
m_breaksEnterFunc.clear();
m_breaksEnterClsMethod.clear();
for (unsigned int i = 0; i < m_breakpoints.size(); i++) {
BreakPointInfoPtr bp = m_breakpoints[i];
std::string funcFullName = bp->getFuncName();
if (funcFullName.empty()) {
continue;
}
{
StringDataMap::accessor acc;
const StringData* sd = StringData::GetStaticString(funcFullName);
m_breaksEnterFunc.insert(acc, sd);
}
std::string clsName = bp->getClass();
if (!clsName.empty()) {
StringDataMap::accessor acc;
const StringData* sd = StringData::GetStaticString(clsName);
m_breaksEnterClsMethod.insert(acc, sd);
}
}
}
VM::phpSetBreakPointsInAllFiles(this); // Apply breakpoints to the code.
}
void HphpdHook::onDefFunc(const Func* f) {
// Make sure we have a proxy
DebuggerProxyPtr proxy = Debugger::GetProxy();
if (proxy == nullptr) return;
// If the proxy has an enabled breakpoint that matches entry into the given
// function, arrange for the VM to stop execution and notify the debugger
// whenever execution enters the given function.
std::vector<BreakPointInfoPtr> bps;
proxy->getBreakPoints(bps);
for (unsigned int i = 0; i < bps.size(); i++) {
BreakPointInfoPtr bp = bps[i];
if (bp->m_state == BreakPointInfo::Disabled) continue;
if (!matchFunctionName(bp->getFuncName(), f)) continue;
bp->m_bindState = BreakPointInfo::KnownToBeValid;
phpAddBreakPointFuncEntry(f);
return;
}
}
void proxySetBreakPoints(DebuggerProxy* proxy) {
std::vector<BreakPointInfoPtr> bps;
proxy->getBreakPoints(bps);
for (unsigned int i = 0; i < bps.size(); i++) {
BreakPointInfoPtr bp = bps[i];
bp->m_bindState = BreakPointInfo::Unknown;
auto className = bp->getClass();
if (!className.empty()) {
auto clsName = makeStaticString(className);
auto cls = Unit::lookupClass(clsName);
if (cls == nullptr) continue;
bp->m_bindState = BreakPointInfo::KnownToBeInvalid;
size_t numFuncs = cls->numMethods();
if (numFuncs == 0) continue;
auto methodName = bp->getFunction();
for (size_t i = 0; i < numFuncs; ++i) {
auto f = cls->getMethod(i);
if (!matchFunctionName(methodName, f)) continue;
bp->m_bindState = BreakPointInfo::KnownToBeValid;
phpAddBreakPointFuncEntry(f);
break;
}
// TODO(#2527229): what about superclass methods accessed via the derived
// class?
continue;
}
auto funcName = bp->getFuncName();
if (!funcName.empty()) {
auto fName = makeStaticString(funcName);
Func* f = Unit::lookupFunc(fName);
if (f == nullptr) continue;
bp->m_bindState = BreakPointInfo::KnownToBeValid;
phpAddBreakPointFuncEntry(f);
continue;
}
auto fileName = bp->m_file;
if (!fileName.empty()) {
for (auto& kv : g_context->m_evaledFiles) {
auto const unit = kv.second;
if (!BreakPointInfo::MatchFile(fileName,
unit->filepath()->toCppString())) {
continue;
}
addBreakPointInUnit(bp, unit);
break;
}
continue;
}
auto exceptionClassName = bp->getExceptionClass();
if (exceptionClassName == "@") {
bp->m_bindState = BreakPointInfo::KnownToBeValid;
continue;
} else if (!exceptionClassName.empty()) {
auto expClsName = makeStaticString(exceptionClassName);
auto cls = Unit::lookupClass(expClsName);
if (cls != nullptr) {
auto baseClsName = makeStaticString("Exception");
auto baseCls = Unit::lookupClass(baseClsName);
if (baseCls != nullptr) {
if (cls->classof(baseCls)) {
bp->m_bindState = BreakPointInfo::KnownToBeValid;
} else {
bp->m_bindState = BreakPointInfo::KnownToBeInvalid;
}
}
}
continue;
} else {
continue;
}
// If we get here, the break point is of a type that does
// not need to be explicitly enabled in the VM. For example
// a break point that get's triggered when the server starts
// to process a page request.
bp->m_bindState = BreakPointInfo::KnownToBeValid;
}
}