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pjs
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Fixed Readme for Linux. Beginning bytecode dumper.

This commit is contained in:
rogerl%netscape.com 2002-11-05 23:53:10 +00:00
Родитель e8126bb8b6
Коммит 753328e85d
4 изменённых файлов: 137 добавлений и 1 удалений
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21
js2/README
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@ -22,6 +22,27 @@ Welcome to Epimetheus.
ep> (use ^z to exit)
Building JS2 on LINUX:
---------------------------------------------------------------------------------------------
[/d/JS_2] cvs -z3 co mozilla/js2
cvs -z3 co mozilla/js/src/fdlibm
[/d/JS_2] cd mozilla/js/src/fdlibm
[/d/JS_2/mozilla/js/src/fdlibm] make -f Makefile.ref <-- builds libfdm.a
[/d/JS_2/mozilla/js/src/fdlibm] cd mozilla/js2
[/d/JS_2/mozilla/js2] automake <--- FIRST TIME ONLY
[/d/JS_2/mozilla/js2] autoconf <--- FIRST TIME ONLY
[/d/JS_2/mozilla/js2] ./configure --enable-debug <--- FIRST TIME ONLY
[/d/JS_2/mozilla/js2] make
RUNNING THE JS2 SHELL AFTER YOU'VE BUILT IT:
cd (path to)/mozilla/js2/tests/cpp
[ (path to)/mozilla/js2/tests/cpp] ./dikdik
---------------------------------------------------------------------------------------------

113
js2/src/js2engine.cpp
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@ -382,6 +382,117 @@ namespace MetaData {
activationStackTop = activationStack = new ActivationFrame[MAX_ACTIVATION_STACK];
}
#ifdef NYI_DEBUG
enum { BRANCH_OFFSET = 1, STR_PTR, NAME_INDEX, FRAME_INDEX, BRANCH_PAIR, U16 };
struct {
JS2Op op;
char *name;
int flags;
} opcodeData[] =
{
{ eAdd, "Add", 0 },
{ eSubtract, "Subtract", 0 },
{ eMultiply, "Multiply", 0 },
{ eDivide, "Divide", 0 },
{ eModulo, "Modulo", 0 },
{ eEqual, "Equal", 0 },
{ eNotEqual, "NotEqual", 0 },
{ eLess, "Less", 0 },
{ eGreater, "Greater", 0 },
{ eLessEqual, "LessEqual", 0 },
{ eGreaterEqual, "GreaterEqual", 0 },
{ eLogicalXor, "LogicalXor", 0 },
{ eLogicalNot, "LogicalNot", 0 },
{ eMinus, "Minus", 0 },
{ ePlus, "Plus", 0 },
{ eComplement, "Complement", 0 },
{ eLeftShift, "LeftShift", 0 },
{ eRightShift, "RightShift", 0 },
{ eLogicalRightShift, "LogicalRightShift", 0 },
{ eBitwiseAnd, "BitwiseAnd", 0 },
{ eBitwiseXor, "BitwiseXor", 0 },
{ eBitwiseOr, "BitwiseOr", 0 },
{ eTrue, "True", 0 },
{ eFalse, "False", 0 },
{ eNull, "Null", 0 },
{ eNumber, "Number", 0 },
{ eRegExp, "RegExp", 0 },
{ eUInt64, "UInt64", 0 },
{ eInt64, "Int64", 0 },
{ eString, "String", STR_PTR }, // <string pointer:u32>
{ eThis, "This", 0 },
{ eNewObject, "NewObject", U16 }, // <argCount:u16>
{ eNewArray, "NewArray", U16 }, // <argCount:u16>
{ eThrow, "Throw", 0 },
{ eTry, "Try", BRANCH_PAIR }, // <finally displacement:s32> <catch displacement:s32>
{ eCallFinally, "CallFinally", BRANCH_OFFSET }, // <branch displacement:s32>
{ eReturnFinally, "ReturnFinally", 0 },
{ eHandler, "Handler", 0 },
{ eFirst, "First", 0 },
{ eNext, "Next", 0 },
{ eForValue, "ForValue", 0 },
{ eSlotRead, "SlotRead", U16 }, // <slot index:u16>
{ eSlotWrite, "SlotWrite", U16 }, // <slot index:u16>
{ eLexicalRead, "LexicalRead", NAME_INDEX }, // <multiname index:u16>
{ eLexicalWrite, "LexicalWrite", NAME_INDEX }, // <multiname index:u16>
{ eLexicalRef, "LexicalRef", NAME_INDEX }, // <multiname index:u16>
{ eLexicalDelete, "LexicalDelete", NAME_INDEX }, // <multiname index:u16>
{ eDotRead, "DotRead", NAME_INDEX }, // <multiname index:u16>
{ eDotWrite, "DotWrite", NAME_INDEX }, // <multiname index:u16>
{ eDotRef, "DotRef", NAME_INDEX }, // <multiname index:u16>
{ eDotDelete, "DotDelete", NAME_INDEX }, // <multiname index:u16>
{ eBracketRead, "BracketRead", 0 },
{ eBracketWrite, "BracketWrite", 0 },
{ eBracketRef, "BracketRef", 0 },
{ eBracketReadForRef, "BracketReadForRef", 0 },
{ eBracketWriteRef, "BracketWriteRef", 0 },
{ eBracketDelete, "BracketDelete", 0 },
{ eReturn, "Return", 0 },
{ eReturnVoid, "ReturnVoid", 0 },
{ ePushFrame, "PushFrame", FRAME_INDEX }, // <frame index:u16>
{ ePopFrame, "PopFrame", 0 },
{ eBranchFalse, "BranchFalse", BRANCH_OFFSET }, // <branch displacement:s32> XXX save space with short and long versions instead ?
{ eBranchTrue, "BranchTrue", BRANCH_OFFSET }, // <branch displacement:s32>
{ eBranch, "Branch", BRANCH_OFFSET }, // <branch displacement:s32>
{ eNew, "New", U16 }, // <argCount:u16>
{ eCall, "Call", U16 }, // <argCount:u16>
{ eTypeof, "Typeof", 0 },
{ eIs, "Is", 0 },
{ ePopv, "Popv", 0 },
{ ePop, "Pop", 0 },
{ eDup, "Dup", 0 },
{ eLexicalPostInc, "LexicalPostInc", NAME_INDEX }, // <multiname index:u16>
{ eLexicalPostDec, "LexicalPostDec", NAME_INDEX }, // <multiname index:u16>
{ eLexicalPreInc, "LexicalPreInc", NAME_INDEX }, // <multiname index:u16>
{ eLexicalPreDec, "LexicalPreDec", NAME_INDEX }, // <multiname index:u16>
{ eDotPostInc, "DotPostInc", NAME_INDEX }, // <multiname index:u16>
{ eDotPostDec, "DotPostDec", NAME_INDEX }, // <multiname index:u16>
{ eDotPreInc, "DotPreInc", NAME_INDEX }, // <multiname index:u16>
{ eDotPreDec, "DotPreDec", NAME_INDEX }, // <multiname index:u16>
{ eBracketPostInc, "BracketPostInc", 0 },
{ eBracketPostDec, "BracketPostDec", 0 },
{ eBracketPreInc, "BracketPreInc", 0 },
{ eBracketPreDec, "BracketPreDec", 0 }
};
void dumpBytecode(uint8 *start, uint8 *end)
{
uint8 *pc = start;
while () {
}
}
#endif
// Return the effect of an opcode on the execution stack.
// Some ops (e.g. eCall) have a variable effect, those are handled separately
// (see emitOp)
@ -568,6 +679,7 @@ namespace MetaData {
activationStackTop->pc = pc;
activationStackTop->phase = phase;
activationStackTop->topFrame = meta->env.getTopFrame();
activationStackTop->execStackTop = sp;
activationStackTop++;
bCon = new_bCon;
pc = new_bCon->getCodeStart();
@ -586,6 +698,7 @@ namespace MetaData {
phase = activationStackTop->phase;
while (meta->env.getTopFrame() != activationStackTop->topFrame)
meta->env.removeTopFrame();
sp = activationStackTop->execStackTop;
}

1
js2/src/js2engine.h
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@ -234,6 +234,7 @@ public:
BytecodeContainer *bCon;
Frame *topFrame;
Phase phase;
js2val *execStackTop;
};
void jsr(Phase execPhase, BytecodeContainer *bCon);
bool activationStackEmpty() { return (activationStackTop == activationStack); }

3
js2/src/js2op_invocation.cpp
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@ -185,7 +185,8 @@
retval = top();
rts();
if (pc == NULL)
return pop();
return retval;
push(retval);
}
break;