зеркало из https://github.com/mozilla/gecko-dev.git
128 строки
3.4 KiB
C++
128 строки
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef _DEBUGGER_H_
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#define _DEBUGGER_H_
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#include "nspr.h"
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#include "Pool.h"
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#include "InterestingEvents.h"
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#include "DebuggerChannel.h"
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#define MAX_BREAKPOINTS 10
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// The BreakPoint class holds the
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class NS_EXTERN BreakPoint {
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Uint32 pc; // The address of the instruction
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Uint64 old_instruction; // Saved copy of the instruction
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bool enabled; // Whether it's enabled
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public:
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void clear() { pc = 0; enabled = false; };
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};
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class DebuggerChannel;
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//
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// The debugger object holds the current state of the debugger
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class NS_EXTERN DebuggerState {
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BreakPoint *breakpoints; // Breakpoints
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Int32 nbreakpoints; // number of breakpoints set so far
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bool enabled; // Was -debug flag passed ?
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Pool &pool; // All memory allocations
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PRThread *thread; // The debugger thread
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public:
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void setBreakPoint(void *pc);
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void clearBreakPoint(void *pc);
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void clearAllBreakPoints();
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// Constructors
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DebuggerState(Pool& p);
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DebuggerState(Pool&p, bool _enabled);
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// Enabled ?
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void enable();
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bool getEnabled() { return enabled; };
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PRThread *getThread() { return thread; };
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static void eventHandler(void *arg);
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void waitForDebugger();
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static void handleAddressToMethod(DebuggerChannel& inChannel);
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static void handleMethodToAddress(DebuggerChannel& inChannel);
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};
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// Takes a pc offset from the beginning of a method and converts it to a
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// bytecode offset,
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class pcToByteCodeTable {
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// A dumb implementation to start with. Space can be saved by storing
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// this as a range
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Int32 *table;
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Int32 nEntries;
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public:
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pcToByteCodeTable() { table = NULL; nEntries = 0; };
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// XXX - memory leak. Need to use a pool.
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pcToByteCodeTable(Int32 size) { table = new Int32[size]; nEntries = size; };
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void setSize(Int32 size);
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Int32 operator [](Int32 pcOffset) const { return table[pcOffset]; };
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};
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class DebuggerServerChannel :
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EventListener
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{
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DebuggerStream mSync;
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DebuggerStream mAsync;
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public:
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static PRThread* spawnServer();
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virtual void listenToMessage(BroadcastEventKind inKind, void* inArgument);
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protected:
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DebuggerServerChannel(PRFileDesc* inSync, PRFileDesc* inAsync) :
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EventListener(gCompileOrLoadBroadcaster),
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mSync(inSync),
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mAsync(inAsync) { }
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void handleRequest(Int32 inRequest);
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void handleMethodToAddress();
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void handleRequestDebuggerThread();
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void handleAddressToMethod();
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void handleNotifyOnCompileLoadMethod();
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void handleRunClass();
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static void serverThread(void*);
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void serverLoop();
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};
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// Platform specific stuff
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int SetBreakPoint(void *code);
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#ifndef WIN32
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void SetupBreakPointHandler();
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#endif
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inline void
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pcToByteCodeTable::setSize(Int32 size)
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{
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assert(table == NULL);
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table = new Int32[size];
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nEntries = size;
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}
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#endif /* _DEBUGGER_H_ */
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