mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-13 23:17:57 +00:00
378 lines
8.1 KiB
C++
378 lines
8.1 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):
|
|
*/
|
|
#ifndef _CR_ATTRIBUTES_H_
|
|
#define _CR_ATTRIBUTES_H_
|
|
|
|
#include "ConstantPool.h"
|
|
#include "DoublyLinkedList.h"
|
|
#include "LogModule.h"
|
|
|
|
UT_EXTERN_LOG_MODULE(Debugger);
|
|
|
|
/* Attribute tags for handlers that we know (care) about */
|
|
#define CR_ATTRIBUTE_SOURCEFILE 1
|
|
#define CR_ATTRIBUTE_CONSTANTVALUE 2
|
|
#define CR_ATTRIBUTE_LINENUMBERTABLE 3
|
|
#define CR_ATTRIBUTE_LOCALVARIABLETABLE 4
|
|
#define CR_ATTRIBUTE_CODE 5
|
|
#define CR_ATTRIBUTE_EXCEPTIONS 6
|
|
|
|
|
|
class AttributeInfoItem : public DoublyLinkedEntry<AttributeInfoItem> {
|
|
public:
|
|
AttributeInfoItem(Pool &pool,
|
|
const char *nameInfo, Uint32 _code, Uint32 _length) :
|
|
p(pool), name(nameInfo), length(_length), code(_code) { }
|
|
|
|
Uint32 getLength() const {
|
|
return length;
|
|
}
|
|
|
|
const char *getName() const {
|
|
return name;
|
|
}
|
|
|
|
Uint32 getCode() const {
|
|
return code;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
virtual void dump(int /*nIndents*/) const {
|
|
|
|
}
|
|
#endif
|
|
|
|
protected:
|
|
Pool &p;
|
|
|
|
private:
|
|
const char *name;
|
|
Uint32 length;
|
|
Uint32 code;
|
|
};
|
|
|
|
|
|
class AttributeSourceFile : public AttributeInfoItem {
|
|
friend class ClassFileReader;
|
|
public:
|
|
AttributeSourceFile(Pool &pool, ConstantUtf8 *utf8) :
|
|
AttributeInfoItem(pool, "SourceFile", CR_ATTRIBUTE_SOURCEFILE, 2) {
|
|
srcName = utf8;
|
|
}
|
|
|
|
ConstantUtf8 *getSrcName() const {
|
|
return srcName;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
virtual void dump(int nIndents) const;
|
|
#endif
|
|
|
|
private:
|
|
ConstantUtf8 *srcName;
|
|
};
|
|
|
|
|
|
class AttributeConstantValue : public AttributeInfoItem {
|
|
public:
|
|
AttributeConstantValue(Pool &pool, ConstantPoolItem *val, Int16 index) :
|
|
AttributeInfoItem(pool, "ConstantValue", CR_ATTRIBUTE_CONSTANTVALUE, 2), value(val), cindex(index) { }
|
|
|
|
|
|
ConstantPoolItem *getValue() const {
|
|
return value;
|
|
}
|
|
|
|
Uint16 getConstantPoolIndex() const {
|
|
return cindex;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
virtual void dump(int nIndents) const;
|
|
#endif
|
|
|
|
private:
|
|
ConstantPoolItem *value;
|
|
Uint16 cindex;
|
|
};
|
|
|
|
|
|
struct ExceptionItem {
|
|
#ifdef DEBUG
|
|
void dump(int nIndents) const;
|
|
#endif
|
|
|
|
Uint16 startPc, endPc, handlerPc, catchType;
|
|
};
|
|
|
|
|
|
class AttributeCode : public AttributeInfoItem {
|
|
|
|
public:
|
|
AttributeCode(Pool &pool, Uint16 _length,
|
|
Uint16 _maxStack, Uint16 _maxLocals, Uint32 _codeLength);
|
|
|
|
bool setNumExceptions(Uint32 _numExceptions);
|
|
|
|
bool setNumAttributes(Uint32 _numAttributes);
|
|
|
|
/* Get the size of the code */
|
|
Uint32 getCodeLength() const {
|
|
return codeLength;
|
|
}
|
|
|
|
Uint32 getMaxStack() const {
|
|
return maxStack;
|
|
}
|
|
|
|
Uint32 getMaxLocals() const {
|
|
return maxLocals;
|
|
}
|
|
|
|
Uint32 getNumExceptions() const {
|
|
return numExceptions;
|
|
}
|
|
|
|
const ExceptionItem *getExceptions() const {
|
|
return exceptions;
|
|
}
|
|
|
|
Uint32 getNumAttributes() const {
|
|
return numAttributes;
|
|
}
|
|
|
|
const AttributeInfoItem **getAttributes() const {
|
|
return attributes;
|
|
}
|
|
|
|
/* Looks up an attribute by attribute-name */
|
|
const AttributeInfoItem *getAttribute(const char *_name) const;
|
|
|
|
const char *getCode() const {
|
|
return (const char *) code;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
virtual void dump(int nIndents) const;
|
|
#endif
|
|
|
|
private:
|
|
Uint32 maxStack, maxLocals, codeLength, numExceptions;
|
|
char *code;
|
|
const ExceptionItem *exceptions;
|
|
Uint32 numAttributes;
|
|
const AttributeInfoItem **attributes;
|
|
};
|
|
|
|
class AttributeExceptions : public AttributeInfoItem {
|
|
friend class AttributeHandlerExceptions;
|
|
public:
|
|
AttributeExceptions(Pool &pool, Uint32 _length) :
|
|
AttributeInfoItem(pool, "Exceptions", CR_ATTRIBUTE_EXCEPTIONS, _length) {
|
|
numExceptions = 0, exceptions = 0;
|
|
}
|
|
|
|
Uint32 getNumExceptions() const {
|
|
return numExceptions;
|
|
}
|
|
|
|
ConstantClass **getExceptions() const {
|
|
return exceptions;
|
|
}
|
|
|
|
bool setNumExceptions(Uint32 n);
|
|
|
|
#ifdef DEBUG
|
|
virtual void dump(int nIndents) const;
|
|
#endif
|
|
|
|
private:
|
|
Uint32 numExceptions;
|
|
ConstantClass **exceptions;
|
|
};
|
|
|
|
typedef struct {
|
|
Uint16 startPc;
|
|
Uint16 lineNumber;
|
|
|
|
#ifdef DEBUG_LOG
|
|
void dump(int nIndents) const {
|
|
print(nIndents, "startPc %d lineNumber %d", startPc, lineNumber);
|
|
}
|
|
#endif
|
|
|
|
} LineNumberEntry;
|
|
|
|
|
|
class AttributeLineNumberTable : public AttributeInfoItem {
|
|
public:
|
|
AttributeLineNumberTable(Pool &pool, Uint32 _length) :
|
|
AttributeInfoItem(pool, "LineNumberTable", CR_ATTRIBUTE_LINENUMBERTABLE,
|
|
_length) {
|
|
numEntries = 0, entries = 0;
|
|
}
|
|
|
|
bool setNumEntries(Uint32 n);
|
|
|
|
Uint32 getNumEntries() const {
|
|
return numEntries;
|
|
}
|
|
|
|
LineNumberEntry *getEntries() const {
|
|
return entries;
|
|
}
|
|
|
|
/* returns the Pc value corresponding to lineNumber, -1 if not found */
|
|
Int32 getPc(Uint32 lineNumber);
|
|
|
|
#ifdef DEBUG
|
|
virtual void dump(int nIndents) const;
|
|
#endif
|
|
|
|
private:
|
|
Uint32 numEntries;
|
|
LineNumberEntry *entries;
|
|
};
|
|
|
|
class VariableLocation {
|
|
bool inRegister; // Is this variable in a register ?
|
|
bool invalid; // The variable is dead at this point
|
|
|
|
union {
|
|
Uint8 reg;
|
|
Uint8 mem; // Need to decide a good way to represent a
|
|
// memory address.
|
|
};
|
|
|
|
public:
|
|
|
|
#ifdef DEBUG_LOG
|
|
void dump() {
|
|
UT_LOG(Debugger, PR_LOG_ALWAYS, ("inreg: %d, reg: %d\n", inRegister,
|
|
reg));
|
|
}
|
|
#endif
|
|
|
|
VariableLocation() {
|
|
invalid = true;
|
|
}
|
|
|
|
VariableLocation(bool _inRegister, Uint8 _reg) {
|
|
inRegister = _inRegister;
|
|
reg = _reg;
|
|
invalid = false;
|
|
}
|
|
|
|
};
|
|
|
|
//
|
|
// Interval mapping is a mapping from a contiguous block of native code to a
|
|
// physical location, where the value of a given local variable may be found.
|
|
//
|
|
class IntervalMapping : public DoublyLinkedEntry<IntervalMapping> {
|
|
public:
|
|
|
|
VariableLocation &getVariableLocation() { return loc; };
|
|
void setVariableLocation(VariableLocation l) { loc = l; };
|
|
|
|
IntervalMapping() : loc(VariableLocation(false, (Uint8) 0)) {};
|
|
void setStart(Uint32 _start) { start = _start; }
|
|
void setEnd(Uint32 _end) { end = _end; }
|
|
|
|
#ifdef DEBUG_LOG
|
|
void dump() {
|
|
UT_LOG(Debugger, PR_LOG_ALWAYS, ("start: %d, end: %d\n", start, end));
|
|
loc.dump();
|
|
}
|
|
#endif
|
|
|
|
private:
|
|
VariableLocation loc;
|
|
Uint32 start; // The mapping is from the interval [start, end)
|
|
Uint32 end;
|
|
|
|
};
|
|
|
|
typedef struct {
|
|
Uint16 startPc;
|
|
Uint16 length;
|
|
ConstantUtf8 *name;
|
|
ConstantUtf8 *descriptor;
|
|
Uint16 index;
|
|
DoublyLinkedList<IntervalMapping> mappings;
|
|
|
|
#ifdef DEBUG
|
|
void dump(int nIndents) const {
|
|
print(nIndents,
|
|
"startPc %d length %d index %d name %s desc %d", startPc, length,
|
|
index, name->getUtfString(), descriptor->getUtfString());
|
|
}
|
|
#endif
|
|
|
|
#ifdef DEBUG_LOG
|
|
void dump() {
|
|
UT_LOG(Debugger, PR_LOG_ALWAYS, ("name: %s, startpc: %d, length: %d, "
|
|
"index %d\n", name->getUtfString(), startPc, length, index));
|
|
}
|
|
#endif
|
|
} LocalVariableEntry;
|
|
|
|
|
|
class AttributeLocalVariableTable : public AttributeInfoItem {
|
|
friend class ClassFileReader;
|
|
|
|
public:
|
|
AttributeLocalVariableTable(Pool &pool, Uint32 _length) :
|
|
AttributeInfoItem(pool, "LocalVariableTable",
|
|
CR_ATTRIBUTE_LOCALVARIABLETABLE,
|
|
_length) {
|
|
entries = 0;
|
|
}
|
|
|
|
|
|
bool setNumEntries(Uint32 n);
|
|
|
|
Uint32 getNumEntries() const {
|
|
return numEntries;
|
|
}
|
|
|
|
LocalVariableEntry *getEntries() const {
|
|
return entries;
|
|
}
|
|
|
|
LocalVariableEntry *getEntry(const char *name);
|
|
LocalVariableEntry *getEntry(Uint16 index);
|
|
LocalVariableEntry& getEntryByNumber(Uint32 index) { return entries[index]; }
|
|
|
|
#ifdef DEBUG
|
|
virtual void dump(int nIndents) const;
|
|
#endif
|
|
|
|
private:
|
|
Uint32 numEntries;
|
|
LocalVariableEntry *entries;
|
|
};
|
|
|
|
|
|
|
|
#endif /* _CR_ATTRIBUTES_H_ */
|