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Fixed Readme for Linux. Beginning bytecode dumper.
This commit is contained in:
rogerl%netscape.com
parent
fcfa09f14b
commit
71a4ec632f
21
js2/README
21
js2/README
@ -22,6 +22,27 @@ Welcome to Epimetheus.
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ep> (use ^z to exit)
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Building JS2 on LINUX:
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---------------------------------------------------------------------------------------------
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[/d/JS_2] cvs -z3 co mozilla/js2
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cvs -z3 co mozilla/js/src/fdlibm
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[/d/JS_2] cd mozilla/js/src/fdlibm
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[/d/JS_2/mozilla/js/src/fdlibm] make -f Makefile.ref <-- builds libfdm.a
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[/d/JS_2/mozilla/js/src/fdlibm] cd mozilla/js2
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[/d/JS_2/mozilla/js2] automake <--- FIRST TIME ONLY
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[/d/JS_2/mozilla/js2] autoconf <--- FIRST TIME ONLY
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[/d/JS_2/mozilla/js2] ./configure --enable-debug <--- FIRST TIME ONLY
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[/d/JS_2/mozilla/js2] make
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RUNNING THE JS2 SHELL AFTER YOU'VE BUILT IT:
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cd (path to)/mozilla/js2/tests/cpp
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[ (path to)/mozilla/js2/tests/cpp] ./dikdik
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---------------------------------------------------------------------------------------------
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@ -382,6 +382,117 @@ namespace MetaData {
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activationStackTop = activationStack = new ActivationFrame[MAX_ACTIVATION_STACK];
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}
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#ifdef NYI_DEBUG
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enum { BRANCH_OFFSET = 1, STR_PTR, NAME_INDEX, FRAME_INDEX, BRANCH_PAIR, U16 };
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struct {
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JS2Op op;
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char *name;
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int flags;
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} opcodeData[] =
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{
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{ eAdd, "Add", 0 },
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{ eSubtract, "Subtract", 0 },
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{ eMultiply, "Multiply", 0 },
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{ eDivide, "Divide", 0 },
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{ eModulo, "Modulo", 0 },
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{ eEqual, "Equal", 0 },
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{ eNotEqual, "NotEqual", 0 },
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{ eLess, "Less", 0 },
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{ eGreater, "Greater", 0 },
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{ eLessEqual, "LessEqual", 0 },
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{ eGreaterEqual, "GreaterEqual", 0 },
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{ eLogicalXor, "LogicalXor", 0 },
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{ eLogicalNot, "LogicalNot", 0 },
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{ eMinus, "Minus", 0 },
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{ ePlus, "Plus", 0 },
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{ eComplement, "Complement", 0 },
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{ eLeftShift, "LeftShift", 0 },
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{ eRightShift, "RightShift", 0 },
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{ eLogicalRightShift, "LogicalRightShift", 0 },
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{ eBitwiseAnd, "BitwiseAnd", 0 },
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{ eBitwiseXor, "BitwiseXor", 0 },
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{ eBitwiseOr, "BitwiseOr", 0 },
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{ eTrue, "True", 0 },
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{ eFalse, "False", 0 },
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{ eNull, "Null", 0 },
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{ eNumber, "Number", 0 },
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{ eRegExp, "RegExp", 0 },
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{ eUInt64, "UInt64", 0 },
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{ eInt64, "Int64", 0 },
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{ eString, "String", STR_PTR }, // <string pointer:u32>
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{ eThis, "This", 0 },
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{ eNewObject, "NewObject", U16 }, // <argCount:u16>
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{ eNewArray, "NewArray", U16 }, // <argCount:u16>
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{ eThrow, "Throw", 0 },
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{ eTry, "Try", BRANCH_PAIR }, // <finally displacement:s32> <catch displacement:s32>
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{ eCallFinally, "CallFinally", BRANCH_OFFSET }, // <branch displacement:s32>
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{ eReturnFinally, "ReturnFinally", 0 },
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{ eHandler, "Handler", 0 },
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{ eFirst, "First", 0 },
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{ eNext, "Next", 0 },
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{ eForValue, "ForValue", 0 },
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{ eSlotRead, "SlotRead", U16 }, // <slot index:u16>
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{ eSlotWrite, "SlotWrite", U16 }, // <slot index:u16>
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{ eLexicalRead, "LexicalRead", NAME_INDEX }, // <multiname index:u16>
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{ eLexicalWrite, "LexicalWrite", NAME_INDEX }, // <multiname index:u16>
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{ eLexicalRef, "LexicalRef", NAME_INDEX }, // <multiname index:u16>
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{ eLexicalDelete, "LexicalDelete", NAME_INDEX }, // <multiname index:u16>
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{ eDotRead, "DotRead", NAME_INDEX }, // <multiname index:u16>
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{ eDotWrite, "DotWrite", NAME_INDEX }, // <multiname index:u16>
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{ eDotRef, "DotRef", NAME_INDEX }, // <multiname index:u16>
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{ eDotDelete, "DotDelete", NAME_INDEX }, // <multiname index:u16>
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{ eBracketRead, "BracketRead", 0 },
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{ eBracketWrite, "BracketWrite", 0 },
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{ eBracketRef, "BracketRef", 0 },
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{ eBracketReadForRef, "BracketReadForRef", 0 },
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{ eBracketWriteRef, "BracketWriteRef", 0 },
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{ eBracketDelete, "BracketDelete", 0 },
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{ eReturn, "Return", 0 },
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{ eReturnVoid, "ReturnVoid", 0 },
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{ ePushFrame, "PushFrame", FRAME_INDEX }, // <frame index:u16>
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{ ePopFrame, "PopFrame", 0 },
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{ eBranchFalse, "BranchFalse", BRANCH_OFFSET }, // <branch displacement:s32> XXX save space with short and long versions instead ?
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{ eBranchTrue, "BranchTrue", BRANCH_OFFSET }, // <branch displacement:s32>
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{ eBranch, "Branch", BRANCH_OFFSET }, // <branch displacement:s32>
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{ eNew, "New", U16 }, // <argCount:u16>
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{ eCall, "Call", U16 }, // <argCount:u16>
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{ eTypeof, "Typeof", 0 },
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{ eIs, "Is", 0 },
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{ ePopv, "Popv", 0 },
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{ ePop, "Pop", 0 },
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{ eDup, "Dup", 0 },
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{ eLexicalPostInc, "LexicalPostInc", NAME_INDEX }, // <multiname index:u16>
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{ eLexicalPostDec, "LexicalPostDec", NAME_INDEX }, // <multiname index:u16>
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{ eLexicalPreInc, "LexicalPreInc", NAME_INDEX }, // <multiname index:u16>
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{ eLexicalPreDec, "LexicalPreDec", NAME_INDEX }, // <multiname index:u16>
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{ eDotPostInc, "DotPostInc", NAME_INDEX }, // <multiname index:u16>
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{ eDotPostDec, "DotPostDec", NAME_INDEX }, // <multiname index:u16>
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{ eDotPreInc, "DotPreInc", NAME_INDEX }, // <multiname index:u16>
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{ eDotPreDec, "DotPreDec", NAME_INDEX }, // <multiname index:u16>
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{ eBracketPostInc, "BracketPostInc", 0 },
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{ eBracketPostDec, "BracketPostDec", 0 },
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{ eBracketPreInc, "BracketPreInc", 0 },
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{ eBracketPreDec, "BracketPreDec", 0 }
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};
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void dumpBytecode(uint8 *start, uint8 *end)
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{
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uint8 *pc = start;
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while () {
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}
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}
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#endif
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// Return the effect of an opcode on the execution stack.
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// Some ops (e.g. eCall) have a variable effect, those are handled separately
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// (see emitOp)
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@ -568,6 +679,7 @@ namespace MetaData {
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activationStackTop->pc = pc;
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activationStackTop->phase = phase;
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activationStackTop->topFrame = meta->env.getTopFrame();
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activationStackTop->execStackTop = sp;
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activationStackTop++;
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bCon = new_bCon;
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pc = new_bCon->getCodeStart();
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@ -586,6 +698,7 @@ namespace MetaData {
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phase = activationStackTop->phase;
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while (meta->env.getTopFrame() != activationStackTop->topFrame)
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meta->env.removeTopFrame();
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sp = activationStackTop->execStackTop;
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}
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@ -234,6 +234,7 @@ public:
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BytecodeContainer *bCon;
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Frame *topFrame;
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Phase phase;
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js2val *execStackTop;
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};
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void jsr(Phase execPhase, BytecodeContainer *bCon);
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bool activationStackEmpty() { return (activationStackTop == activationStack); }
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@ -185,7 +185,8 @@
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retval = top();
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rts();
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if (pc == NULL)
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return pop();
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return retval;
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push(retval);
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}
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break;
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