mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 15:15:23 +00:00
344 lines
7.3 KiB
C++
344 lines
7.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include "CatchAssert.h"
|
|
#include "Debugger.h"
|
|
#ifdef USE_JVMDI
|
|
#include "jvmdi.h"
|
|
#endif
|
|
#include "LogModule.h"
|
|
#include "NativeCodeCache.h"
|
|
#include "DebuggerChannel.h"
|
|
#include "StringUtils.h"
|
|
#include "JavaVM.h"
|
|
|
|
UT_DEFINE_LOG_MODULE(Debugger);
|
|
|
|
DebuggerState::DebuggerState(Pool& p) :
|
|
breakpoints(NULL),
|
|
enabled(false),
|
|
pool(p)
|
|
{
|
|
}
|
|
|
|
DebuggerState::DebuggerState(Pool& p, bool _enabled) : pool(p)
|
|
{
|
|
enabled = _enabled;
|
|
|
|
if (enabled)
|
|
enable();
|
|
}
|
|
|
|
void
|
|
DebuggerState::enable()
|
|
{
|
|
enabled = true;
|
|
breakpoints = new (pool) BreakPoint[MAX_BREAKPOINTS];
|
|
|
|
thread = DebuggerServerChannel::spawnServer();
|
|
|
|
#ifdef LINUX
|
|
// Set the breakpoint handler up.
|
|
SetupBreakPointHandler();
|
|
#endif
|
|
}
|
|
|
|
void
|
|
DebuggerState::waitForDebugger()
|
|
{
|
|
if (thread)
|
|
PR_JoinThread(thread);
|
|
}
|
|
|
|
static PRNetAddr sNetaddr;
|
|
|
|
PRThread* DebuggerServerChannel::
|
|
spawnServer()
|
|
{
|
|
PRFileDesc* connector;
|
|
|
|
// Create a TCP socket
|
|
if ((connector = PR_NewTCPSocket()) == NULL)
|
|
{
|
|
UT_LOG(Debugger, PR_LOG_DEBUG, ("Debugger: PR_NewTCPSocket failed\n"));
|
|
return (NULL);
|
|
}
|
|
|
|
sNetaddr.inet.family = AF_INET;
|
|
sNetaddr.inet.port = htons(kDebuggerPort);
|
|
sNetaddr.inet.ip = htonl(INADDR_ANY);
|
|
|
|
if (PR_Bind(connector, &sNetaddr) < 0)
|
|
{
|
|
UT_LOG(Debugger, PR_LOG_DEBUG, ("Debugger: PR_Bind failed\n"));
|
|
return (NULL);
|
|
}
|
|
|
|
// Allow atmost 2 debugger connections
|
|
// 1 sync 1 async
|
|
if (PR_Listen(connector, 2) < 0)
|
|
{
|
|
UT_LOG(Debugger, PR_LOG_DEBUG, ("Debugger: PR_Listen failed\n"));
|
|
return (NULL);
|
|
}
|
|
|
|
PRThread* thread;
|
|
|
|
// Spawn the debugger listener thread
|
|
thread = PR_CreateThread(PR_USER_THREAD,
|
|
&serverThread,
|
|
connector,
|
|
PR_PRIORITY_NORMAL,
|
|
PR_GLOBAL_THREAD,
|
|
PR_JOINABLE_THREAD,
|
|
0);
|
|
return (thread);
|
|
}
|
|
|
|
void DebuggerServerChannel::
|
|
serverThread(void* inArgument)
|
|
{
|
|
#ifdef _WIN32
|
|
SET_DEBUGGER_THREAD_ID(::GetCurrentThreadId());
|
|
#endif
|
|
|
|
PRFileDesc* connector = (PRFileDesc*) inArgument;
|
|
PRFileDesc* sync;
|
|
PRFileDesc* async;
|
|
|
|
if (!(sync = PR_Accept(connector, &sNetaddr, PR_INTERVAL_NO_TIMEOUT)))
|
|
assert(false);
|
|
|
|
if (!(async = PR_Accept(connector, &sNetaddr, PR_INTERVAL_NO_TIMEOUT)))
|
|
assert(false);
|
|
|
|
|
|
DebuggerServerChannel serverChannel(sync, async);
|
|
|
|
serverChannel.serverLoop();
|
|
}
|
|
|
|
|
|
void
|
|
DebuggerState:: clearAllBreakPoints()
|
|
{
|
|
for (int i=0; i < MAX_BREAKPOINTS; i++)
|
|
breakpoints[i].clear();
|
|
}
|
|
|
|
|
|
|
|
|
|
void DebuggerServerChannel::
|
|
serverLoop()
|
|
{
|
|
#define HELL_HAS_NOT_FROZEN_OVER 1
|
|
|
|
while (HELL_HAS_NOT_FROZEN_OVER)
|
|
{
|
|
Int32 request;
|
|
|
|
request = mSync.readRequest();
|
|
UT_LOG(Debugger, PR_LOG_DEBUG, ("command received: %c\n", (char) request));
|
|
|
|
switch(request)
|
|
{
|
|
case 'b':
|
|
#ifdef USE_JVMDI
|
|
JVMDI_SetBreakpoint(NULL, 0, 0, 0);
|
|
#endif
|
|
break;
|
|
case 'g':
|
|
// Not implemented
|
|
break;
|
|
case kAddressToMethod:
|
|
// request address to method
|
|
handleAddressToMethod();
|
|
break;
|
|
case kMethodToAddress:
|
|
// request method to address
|
|
handleMethodToAddress();
|
|
break;
|
|
case kRequestNotifyMethodCompiledLoaded:
|
|
handleNotifyOnCompileLoadMethod();
|
|
break;
|
|
case kRunClass:
|
|
handleRunClass();
|
|
break;
|
|
case 'q':
|
|
// Debugger thread quits
|
|
return;
|
|
default:
|
|
mSync.writeResponse(-1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DebuggerState::setBreakPoint(void *pc)
|
|
{
|
|
#ifdef LINUX
|
|
SetBreakPoint(pc);
|
|
#else
|
|
pc;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
DebuggerState::clearBreakPoint(void *pc)
|
|
{
|
|
clearBreakPoint(pc);
|
|
}
|
|
|
|
// Access to the database of classes
|
|
#include "ClassWorld.h"
|
|
#include "StringPool.h"
|
|
extern ClassWorld world;
|
|
extern StringPool sp;
|
|
|
|
void DebuggerServerChannel::
|
|
handleAddressToMethod()
|
|
{
|
|
DEBUG_TRACER(UT_LOG_MODULE(Debugger), "handleAddressToMethod");
|
|
|
|
void* address;
|
|
CacheEntry* ce;
|
|
|
|
address = mSync.readPtr();
|
|
ce = NativeCodeCache::getCache().lookupByRange((Uint8*) address);
|
|
|
|
if (ce) {
|
|
mSync.writeResponse(0);
|
|
mSync.writeString(ce->descriptor.method->toString());
|
|
mSync.writePtr((void*)((Uint8*) address - ce->start.getFunctionAddress()));
|
|
}
|
|
else
|
|
mSync.writeResponse(-1);
|
|
}
|
|
|
|
void DebuggerServerChannel::
|
|
handleMethodToAddress()
|
|
{
|
|
DEBUG_TRACER(UT_LOG_MODULE(Debugger), "handleMethodToAddress");
|
|
char* methodName;
|
|
const char* internedMethodName;
|
|
|
|
// lookup method name in string pool (getMethod requires interned string)
|
|
internedMethodName = sp.get(methodName = mSync.readString());
|
|
delete [] methodName;
|
|
|
|
|
|
if (internedMethodName) {
|
|
Method* method;
|
|
|
|
// now grab the method
|
|
if (world.getMethod(internedMethodName, method)) {
|
|
// lookup method in cache
|
|
MethodDescriptor methodDescriptor(*method);
|
|
|
|
void* address = addressFunction(NativeCodeCache::getCache().lookupByDescriptor(methodDescriptor, true, true));
|
|
if (address) {
|
|
mSync.writeResponse(0);
|
|
mSync.writePtr(address);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// if we fall-through the method was not found
|
|
mSync.writeResponse(-1);
|
|
}
|
|
|
|
Vector<char*> sNotifyList;
|
|
|
|
void DebuggerServerChannel::
|
|
handleNotifyOnCompileLoadMethod()
|
|
{
|
|
DEBUG_TRACER(UT_LOG_MODULE(Debugger), "handleNotifyOnCompileLoadMethod");
|
|
char* methodName = mSync.readString();
|
|
|
|
sNotifyList.append(methodName); // methodName is new'ed for us by DebuggerChannel
|
|
|
|
mSync.writeResponse(0);
|
|
}
|
|
|
|
void executeClass(void *inArgument);
|
|
|
|
void executeClass(void *inArgument)
|
|
{
|
|
char* className = (char*) inArgument;
|
|
VM::theVM.execute(className, NULL, NULL, NULL, 0);
|
|
}
|
|
|
|
|
|
void DebuggerServerChannel::
|
|
handleRunClass()
|
|
{
|
|
DEBUG_TRACER(UT_LOG_MODULE(Debugger), "handleRunClass");
|
|
|
|
char* className = mSync.readString();
|
|
PRThread* thread;
|
|
|
|
// do not tie up this thread -- because we
|
|
// we need this one for communication
|
|
thread = PR_CreateThread(PR_USER_THREAD,
|
|
&executeClass,
|
|
className,
|
|
PR_PRIORITY_NORMAL,
|
|
PR_GLOBAL_THREAD,
|
|
PR_JOINABLE_THREAD,
|
|
0);
|
|
|
|
mSync.writeResponse(thread ? 0 : -1); // return -1 if couldn't create thread
|
|
|
|
// FIX-ME leak className because too lazy
|
|
// to make sure thread makes its own copy
|
|
//delete [] className;
|
|
}
|
|
|
|
void DebuggerServerChannel::
|
|
listenToMessage(BroadcastEventKind inKind, void* inArgument)
|
|
{
|
|
if (inKind == kEndCompileOrLoad) {
|
|
assert(inArgument);
|
|
Method& method = *(Method*) inArgument;
|
|
|
|
char** curPos;
|
|
for (curPos = sNotifyList.begin(); curPos < sNotifyList.end(); curPos++)
|
|
if (!PL_strcmp(*curPos, method.toString())) {
|
|
mAsync.writeRequest(kNotifyMethodCompiledLoaded);
|
|
mAsync.writeString(*curPos);
|
|
|
|
MethodDescriptor methodDescriptor(method);
|
|
void* address = addressFunction(NativeCodeCache::getCache().lookupByDescriptor(methodDescriptor, true, true));
|
|
assert(address);
|
|
mAsync.writePtr(address);
|
|
|
|
// now wait for a response
|
|
assert(!mAsync.readResponse());
|
|
break;
|
|
}
|
|
}
|
|
}
|