void HphpdHook::onDefClass(const Class* cls) {
// Make sure we have a proxy
DebuggerProxy* proxy = Debugger::GetProxy().get();
if (proxy == nullptr) return;
// If the proxy has enabled breakpoints that match entry into methods of
// the given class, arrange for the VM to stop execution and notify the
// debugger whenever execution enters one of these matched method.
// This function is called once, when a class is first loaded, so it is not
// performance critical.
size_t numFuncs = cls->numMethods();
if (numFuncs == 0) return;
auto clsName = cls->name();
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;
// TODO: check name space separately
if (bp->getClass() != clsName->data()) continue;
bp->m_bindState = BreakPointInfo::KnownToBeInvalid;
for (size_t i = 0; i < numFuncs; ++i) {
auto f = cls->getMethod(i);
if (!matchFunctionName(bp->getFunction(), f)) continue;
bp->m_bindState = BreakPointInfo::KnownToBeValid;
phpAddBreakPointFuncEntry(f);
}
}
}
bool CmdBreak::validate(DebuggerClient *client, BreakPointInfoPtr bpi,
int index) {
++index;
if (client->arg(index, "if")) {
bpi->setClause(client->lineRest(++index), true);
} else if (client->arg(index, "&&")) {
bpi->setClause(client->lineRest(++index), false);
}
if (bpi->valid()) {
m_breakpoints = client->getBreakPoints();
for (int i = 0; i < (int)m_breakpoints->size(); i++) {
if ((*m_breakpoints)[i]->same(bpi)) {
client->error("Breakpoint was already set previously.");
return true;
}
}
m_breakpoints->push_back(bpi);
updateImpl(client);
client->info("Breakpoint %d set %s", bpi->index(), bpi->desc().c_str());
return true;
}
if (!bpi->m_url.empty()) {
client->error("@{url} cannot be specified alone.");
} else {
client->error("Breakpoint was not set in right format.");
}
return false;
}
// Handle a continue cmd, or setup stepping.
void DebuggerProxy::processFlowControl(CmdInterrupt &cmd) {
TRACE(2, "DebuggerProxy::processFlowControl\n");
switch (m_flow->getType()) {
case DebuggerCommand::KindOfContinue:
if (!m_flow->decCount()) {
m_flow.reset();
}
break;
case DebuggerCommand::KindOfStep:
{
// allows the breakpoint to be hit again when returns
// from function call
BreakPointInfoPtr bp = getBreakPointAtCmd(cmd);
if (bp) {
bp->setBreakable(getRealStackDepth());
}
break;
}
case DebuggerCommand::KindOfOut:
case DebuggerCommand::KindOfNext:
m_flow->setStackDepth(getStackDepth());
m_flow->setVMDepth(g_vmContext->m_nesting);
m_flow->setFileLine(cmd.getFileLine());
break;
default:
assert(false);
break;
}
}
// 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 DebuggerProxy::changeBreakPointDepth(CmdInterrupt& cmd) {
TRACE(2, "DebuggerProxy::changeBreakPointDepth\n");
for (unsigned int i = 0; i < m_breakpoints.size(); ++i) {
// if the site changes, then update the breakpoint depth
BreakPointInfoPtr bp = m_breakpoints[i];
if (bp->m_state != BreakPointInfo::Disabled &&
!bp->match(cmd.getInterruptType(), *cmd.getSite())) {
m_breakpoints[i]->changeBreakPointDepth(getRealStackDepth());
}
}
}
// There could be multiple breakpoints at one place but we can manage this
// with only one breakpoint.
BreakPointInfoPtr DebuggerProxy::getBreakPointAtCmd(CmdInterrupt& cmd) {
TRACE(2, "DebuggerProxy::getBreakPointAtCmd\n");
for (unsigned int i = 0; i < m_breakpoints.size(); ++i) {
BreakPointInfoPtr bp = m_breakpoints[i];
if (bp->m_state != BreakPointInfo::Disabled &&
bp->match(cmd.getInterruptType(), *cmd.getSite())) {
return bp;
}
}
return BreakPointInfoPtr();
}
// Do not allow further breaks on the site of cmd, except during
// calls made from the current site.
void DebuggerProxy::unsetBreakableForBreakpointsMatching(CmdInterrupt& cmd) {
TRACE(2, "DebuggerProxy::unsetBreakableForBreakpointsMatching\n");
auto stackDepth = getRealStackDepth();
for (unsigned int i = 0; i < m_breakpoints.size(); ++i) {
BreakPointInfoPtr bp = m_breakpoints[i];
if (bp != nullptr && bp->m_state != BreakPointInfo::Disabled &&
bp->match(*this, cmd.getInterruptType(), *cmd.getSite())) {
bp->unsetBreakable(stackDepth);
}
}
}
void CmdStep::onSetup(DebuggerProxy *proxy, CmdInterrupt &interrupt) {
assert(!m_complete); // Complete cmds should not be asked to do work.
CmdFlowControl::onSetup(proxy, interrupt);
// Allows a breakpoint on this same line to be hit again when control returns
// from function call.
BreakPointInfoPtr bp = proxy->getBreakPointAtCmd(interrupt);
if (bp) {
bp->setBreakable(proxy->getRealStackDepth());
}
installLocationFilterForLine(interrupt.getSite());
m_needsVMInterrupt = true;
}
Variant c_DebuggerClientCmdUser::t_getcurrentlocation() {
TRACE(5, "c_DebuggerClientCmdUser::t_getcurrentlocation\n");
BreakPointInfoPtr bpi = m_client->getCurrentLocation();
if (!bpi) return Array::Create();
ArrayInit ret(6);
ret.set(s_file, String(bpi->m_file));
ret.set(s_line, (int64_t)bpi->m_line1);
ret.set(s_namespace, String(bpi->getNamespace()));
ret.set(s_class, String(bpi->getClass()));
ret.set(s_function, String(bpi->getFunction()));
ret.set(s_text, String(bpi->site()));
return ret.create();
}
void CmdBreak::setClientOutput(DebuggerClient *client) {
// Output an array of current breakpoints including exceptions
client->setOutputType(DebuggerClient::OTValues);
Array values;
m_breakpoints = client->getBreakPoints();
for (int i = 0; i < (int)m_breakpoints->size(); i++) {
BreakPointInfoPtr bpi = m_breakpoints->at(i);
Array breakpoint;
breakpoint.set(s_id, bpi->index());
breakpoint.set(s_state, bpi->state(false));
if (bpi->m_interrupt == ExceptionThrown) {
breakpoint.set(s_is_exception, true);
breakpoint.set(s_exception_class, bpi->getExceptionClass());
} else {
breakpoint.set(s_is_exception, false);
breakpoint.set(s_file, bpi->m_file);
breakpoint.set(s_line1, bpi->m_line1);
breakpoint.set(s_line2, bpi->m_line2);
breakpoint.set(s_namespace, bpi->getNamespace());
breakpoint.set(s_func, bpi->getFunction());
breakpoint.set(s_class, bpi->getClass());
}
breakpoint.set(s_url, bpi->m_url);
breakpoint.set(s_use_regex, bpi->m_regex);
breakpoint.set(s_clause_type, bpi->m_check ? s_if : s_ampamp);
breakpoint.set(s_clause, bpi->m_clause);
breakpoint.set(s_desc, bpi->desc());
values.append(breakpoint);
}
client->setOTValues(values);
}
Variant c_DebuggerClientCmdUser::t_getcurrentlocation() {
INSTANCE_METHOD_INJECTION_BUILTIN(DebuggerClientCmdUser, DebuggerClientCmdUser::getcurrentlocation);
BreakPointInfoPtr bpi = m_client->getCurrentLocation();
Array ret(Array::Create());
if (bpi) {
ret.set("file", String(bpi->m_file));
ret.set("line", (int64)bpi->m_line1);
ret.set("namespace", String(bpi->getNamespace()));
ret.set("class", String(bpi->getClass()));
ret.set("function", String(bpi->getFunction()));
ret.set("text", String(bpi->site()));
}
return ret;
}
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;
}
}
bool CmdBreak::processList(DebuggerClient *client) {
m_breakpoints = client->getBreakPoints();
for (int i = 0; i < (int)m_breakpoints->size(); i++) {
BreakPointInfoPtr bpi = m_breakpoints->at(i);
client->print(" %d\t%s %s", bpi->index(), bpi->state(true).c_str(),
bpi->desc().c_str());
}
if (m_breakpoints->empty()) {
client->tutorial(
"Use '[b]reak ?|[h]elp' to read how to set breakpoints. "
);
} else {
client->tutorial(
"Use '[b]reak [c]lear {index}|[a]ll' to remove breakpoint(s). "
"Use '[b]reak [t]oggle {index}|[a]ll' to change their states."
);
}
return true;
}
void DebuggerProxy::setBreakPoints(
std::vector<BreakPointInfoPtr>& 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);
// breakpoints holds a list of fresh new BreakPointInfo objects that
// have been deserialized from the client's list of breakpoints.
// The existing BreakPointInfo objects may include non empty values
// for m_stack. If these get thrown away, breakpoints that are temporarily
// disabled will suddenly fire again, which is not what we want to
// happen if we create a new breakpoint or just even list breakpoints.
auto it = m_breakpoints.begin();
for (auto it1 = breakpoints.begin(); it1 != breakpoints.end(); ++it1) {
BreakPointInfoPtr newBreakPoint = *it1;
do {
for (auto it2 = it; it2 != m_breakpoints.end(); ) {
BreakPointInfoPtr oldBreakPoint = *it2++;
if (oldBreakPoint->same(newBreakPoint)) {
newBreakPoint->transferStack(oldBreakPoint);
it = it2;
goto next_breakpoint;
}
}
if (it == m_breakpoints.begin()) goto next_breakpoint;
// Only searched a part of m_breakpoints. Reset it and try again.
it = m_breakpoints.begin();
} while (true);
next_breakpoint: continue;
}
m_breakpoints = breakpoints;
m_hasBreakPoints = !m_breakpoints.empty();
}
proxySetBreakPoints(this);
}
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;
}
}
bool CmdInterrupt::onClient(DebuggerClient *client) {
client->setCurrentLocation(m_threadId, m_bpi);
client->setMatchedBreakPoints(m_matched);
switch (m_interrupt) {
case SessionEnded:
case RequestEnded:
case PSPEnded:
if (m_pendingJump) {
client->error("Your jump point cannot be reached. You may only jump "
"to certain parallel or outer execution points.");
}
break;
}
switch (m_interrupt) {
case SessionStarted:
if (!m_program.empty()) {
client->info("Program %s loaded. Type '[r]un' or '[c]ontinue' to go.",
m_program.c_str());
m_bpi->m_file = m_program;
}
break;
case SessionEnded:
if (!m_program.empty()) {
client->info("Program %s exited normally.", m_program.c_str());
}
break;
case RequestStarted:
if (!m_program.empty()) {
client->info("Web request %s started.", m_program.c_str());
}
break;
case RequestEnded:
if (!m_program.empty()) {
client->info("Web request %s ended.", m_program.c_str());
}
break;
case PSPEnded:
if (!m_program.empty()) {
client->info("Post-Send Processing for %s was ended.",
m_program.c_str());
}
break;
case BreakPointReached:
case ExceptionThrown: {
bool found = false;
bool toggled = false;
BreakPointInfoPtrVec *bps = client->getBreakPoints();
for (unsigned int i = 0; i < m_matched.size(); i++) {
BreakPointInfoPtr bpm = m_matched[i];
BreakPointInfoPtr bp;
int index = 0;
for (; index < (int)bps->size(); index++) {
if (bpm->same((*bps)[index])) {
bp = (*bps)[index];
break;
}
}
if (bp) {
found = true;
if (bp->m_state == BreakPointInfo::Once) {
bp->m_state = BreakPointInfo::Disabled;
toggled = true;
}
if (m_interrupt == BreakPointReached) {
client->info("Breakpoint %d reached %s", index + 1,
m_bpi->site().c_str());
} else {
client->info("Breakpoint %d reached: Throwing %s %s", index + 1,
m_bpi->m_exceptionClass.c_str(),
m_bpi->site().c_str());
client->output(m_bpi->m_exceptionObject);
}
if (!bpm->m_output.empty()) {
client->print(bpm->m_output);
}
}
}
if (toggled) {
CmdBreak().update(client);
}
if (!found) {
client->info("Break %s", m_bpi->site().c_str());
}
break;
}
}
if (!m_errorMsg.empty()) {
client->error(m_errorMsg);
}
// watches
switch (m_interrupt) {
case SessionStarted:
case RequestStarted:
break;
default: {
DebuggerClient::WatchPtrVec &watches = client->getWatches();
for (int i = 0; i < (int)watches.size(); i++) {
if (i > 0) client->output("");
client->info("Watch %d: %s =", i + 1, watches[i]->second.c_str());
CmdPrint().processWatch(client, watches[i]->first, watches[i]->second);
}
}
}
return true;
}
bool CmdBreak::processUpdate(DebuggerClient *client) {
m_breakpoints = client->getBreakPoints();
if (m_breakpoints->empty()) {
client->error("There is no breakpoint to clear or toggle.");
client->tutorial(
"Use '[b]reak ?|[h]elp' to read how to set breakpoints. "
);
return true;
}
if (client->argCount() == 1) {
BreakPointInfoPtrVec *matched = client->getMatchedBreakPoints();
BreakPointInfoPtrVec *bps = client->getBreakPoints();
bool found = false;
for (unsigned int i = 0; i < matched->size(); i++) {
BreakPointInfoPtr bpm = (*matched)[i];
BreakPointInfoPtr bp;
int index = 0;
for (; index < (int)bps->size(); index++) {
if (bpm->same((*bps)[index])) {
bp = (*bps)[index];
break;
}
}
if (bp) {
const char *action;
if (hasClearArg(client)) {
action = "cleared";
bps->erase(bps->begin() + index);
} else if (hasEnableArg(client)) {
action = "updated";
bp->setState(BreakPointInfo::Always);
} else if (hasDisableArg(client)) {
action = "updated";
bp->setState(BreakPointInfo::Disabled);
} else {
assert(hasToggleArg(client));
action = "updated";
bp->toggle();
}
client->info("Breakpoint %d is %s %s", bp->index(),
action, bp->site().c_str());
found = true;
}
}
if (found) {
updateImpl(client);
return true;
}
client->error("There is no current breakpoint to clear or toggle.");
return true;
}
if (client->arg(2, "all")) {
if (hasClearArg(client)) {
m_breakpoints->clear();
updateImpl(client);
client->info("All breakpoints are cleared.");
return true;
}
for (unsigned int i = 0; i < m_breakpoints->size(); i++) {
BreakPointInfoPtr bpi = (*m_breakpoints)[i];
if (hasEnableArg(client)) {
bpi->setState(BreakPointInfo::Always);
}
else if (hasDisableArg(client)) {
bpi->setState(BreakPointInfo::Disabled);
}
else {
assert(hasToggleArg(client));
bpi->toggle();
}
}
updateImpl(client);
return processList(client);
}
string snum = client->argValue(2);
if (!DebuggerClient::IsValidNumber(snum)) {
client->error("'[b]reak [c]lear|[t]oggle' needs an {index} argument.");
client->tutorial(
"You will have to run '[b]reak [l]ist' first to see a list of valid "
"numbers or indices to specify."
);
return true;
}
int index = -1;
int num = atoi(snum.c_str());
for (unsigned int i = 0; i < m_breakpoints->size(); i++) {
if (m_breakpoints->at(i)->index() == num) {
index = i;
break;
}
}
if (index < 0) {
client->error("\"%s\" is not a valid breakpoint index. Choose one from "
"this list:", snum.c_str());
processList(client);
return true;
}
BreakPointInfoPtr bpi = (*m_breakpoints)[index];
if (hasClearArg(client)) {
m_breakpoints->erase(m_breakpoints->begin() + index);
updateImpl(client);
client->info("Breakpoint %d cleared %s", bpi->index(),
bpi->desc().c_str());
} else if (hasEnableArg(client)) {
bpi->setState(BreakPointInfo::Always);
updateImpl(client);
client->info("Breakpoint %d's state is changed to %s.", bpi->index(),
bpi->state(false).c_str());
} else if (hasDisableArg(client)) {
bpi->setState(BreakPointInfo::Disabled);
updateImpl(client);
client->info("Breakpoint %d's state is changed to %s.", bpi->index(),
bpi->state(false).c_str());
} else {
assert(hasToggleArg(client));
bpi->toggle();
updateImpl(client);
client->info("Breakpoint %d's state is changed to %s.", bpi->index(),
bpi->state(false).c_str());
}
return true;
}
void CmdInterrupt::onClient(DebuggerClient &client) {
client.setCurrentLocation(m_threadId, m_bpi);
if (!client.getDebuggerClientSmallStep()) {
// Adjust line and char if it's not small stepping
if (m_bpi->m_line1 == m_bpi->m_line2) {
m_bpi->m_char1 = 1;
m_bpi->m_char2 = 100;
}
}
client.setMatchedBreakPoints(m_matched);
switch (m_interrupt) {
case SessionStarted:
if (!m_program.empty()) {
client.info("Program %s loaded. Type '[r]un' or '[c]ontinue' to go.",
m_program.c_str());
m_bpi->m_file = m_program;
}
break;
case SessionEnded:
if (!m_program.empty()) {
client.info("Program %s exited normally.", m_program.c_str());
}
break;
case RequestStarted:
if (!m_program.empty()) {
client.info("Web request %s started.", m_program.c_str());
}
break;
case RequestEnded:
if (!m_program.empty()) {
client.info("Web request %s ended.", m_program.c_str());
}
break;
case PSPEnded:
if (!m_program.empty()) {
client.info("Post-Send Processing for %s was ended.",
m_program.c_str());
}
break;
case HardBreakPoint:
case BreakPointReached:
case ExceptionThrown: {
bool found = false;
bool toggled = false;
auto *bps = client.getBreakPoints();
for (unsigned int i = 0; i < m_matched.size(); i++) {
BreakPointInfoPtr bpm = m_matched[i];
BreakPointInfoPtr bp;
int index = 0;
for (; index < (int)bps->size(); index++) {
if (bpm->same((*bps)[index])) {
bp = (*bps)[index];
break;
}
}
if (bp) {
found = true;
if (bp->m_state == BreakPointInfo::Once) {
bp->m_state = BreakPointInfo::Disabled;
toggled = true;
}
if (m_interrupt == BreakPointReached ||
m_interrupt == HardBreakPoint) {
client.info("Breakpoint %d reached %s", bp->index(),
m_bpi->site().c_str());
client.shortCode(m_bpi);
} else {
if (m_bpi->m_exceptionClass == BreakPointInfo::ErrorClassName) {
client.info("Breakpoint %d reached: An error occurred %s",
bp->index(), m_bpi->site().c_str());
client.shortCode(m_bpi);
client.error("Error Message: %s",
m_bpi->m_exceptionObject.c_str());
} else {
client.info("Breakpoint %d reached: Throwing %s %s",
bp->index(),
m_bpi->m_exceptionClass.c_str(),
m_bpi->site().c_str());
client.shortCode(m_bpi);
if (client.getLogFileHandler()) {
client.output(m_bpi->m_exceptionObject);
}
}
}
if (!bpm->m_output.empty()) {
client.print(bpm->m_output);
}
}
}
if (toggled) {
CmdBreak::SendClientBreakpointListToServer(client);
}
if (!found) {
if (m_interrupt == HardBreakPoint) {
// for HardBreakPoint, default the frame to the caller
client.setFrame(1);
}
client.info("Break %s", m_bpi->site().c_str());
client.shortCode(m_bpi);
}
break;
}
}
if (!m_errorMsg.empty()) {
client.error(m_errorMsg);
}
// watches
switch (m_interrupt) {
case SessionStarted:
case RequestStarted:
break;
default: {
DebuggerClient::WatchPtrVec &watches = client.getWatches();
for (int i = 0; i < (int)watches.size(); i++) {
if (i > 0) client.output("%s", "");
client.info("Watch %d: %s =", i + 1, watches[i]->second.c_str());
Variant v = CmdPrint().processWatch(client, watches[i]->first,
watches[i]->second);
client.output(CmdPrint::FormatResult(watches[i]->first, v));
}
}
}
}
// Handle an interrupt from the VM.
void DebuggerProxy::interrupt(CmdInterrupt &cmd) {
TRACE(2, "DebuggerProxy::interrupt\n");
changeBreakPointDepth(cmd);
if (cmd.getInterruptType() == BreakPointReached) {
if (!needInterrupt()) return;
// NB: stepping is represented as a BreakPointReached interrupt.
// Modify m_lastLocFilter to save current location. This will short-circuit
// the work done up in phpDebuggerOpcodeHook() and ensure we don't break on
// this line until we're completely off of it.
InterruptSite *site = cmd.getSite();
if (g_vmContext->m_lastLocFilter) {
g_vmContext->m_lastLocFilter->clear();
} else {
g_vmContext->m_lastLocFilter = new VM::PCFilter();
}
if (debug && Trace::moduleEnabled(Trace::bcinterp, 5)) {
Trace::trace("prepare source loc filter\n");
const VM::OffsetRangeVec& offsets = site->getCurOffsetRange();
for (VM::OffsetRangeVec::const_iterator it = offsets.begin();
it != offsets.end(); ++it) {
Trace::trace("block source loc in %s:%d: unit %p offset [%d, %d)\n",
site->getFile(), site->getLine0(),
site->getUnit(), it->m_base, it->m_past);
}
}
g_vmContext->m_lastLocFilter->addRanges(site->getUnit(),
site->getCurOffsetRange());
// If the breakpoint is not to be processed, we should continue execution.
BreakPointInfoPtr bp = getBreakPointAtCmd(cmd);
if (bp) {
if (!bp->breakable(getRealStackDepth())) {
return;
} else {
bp->unsetBreakable(getRealStackDepth());
}
}
}
// Wait until this thread is the thread this proxy wants to debug.
// NB: breakpoints and control flow checks happen here, too, and return false
// if we're not done with the flow, or not at a breakpoint, etc.
if (!blockUntilOwn(cmd, true)) {
return;
}
if (processFlowBreak(cmd)) {
while (true) {
try {
Lock lock(m_signalMutex);
m_signum = CmdSignal::SignalNone;
processInterrupt(cmd);
} catch (const DebuggerException &e) {
switchThreadMode(Normal);
throw;
} catch (...) {
assert(false); // no other exceptions should be seen here
switchThreadMode(Normal);
throw;
}
if (cmd.getInterruptType() == PSPEnded) {
switchThreadMode(Normal);
return; // we are done with this thread
}
if (!m_newThread) {
break; // we're not switching threads
}
switchThreadMode(Normal, m_newThread->m_id);
blockUntilOwn(cmd, false);
}
}
if (m_threadMode == Normal) {
Lock lock(this);
m_thread = 0;
notify();
} else if (cmd.getInterruptType() == PSPEnded) {
switchThreadMode(Normal); // we are done with this thread
}
}
