Quellverzeichnis Stack.h
Interaktion und PortierbarkeitC
/
* Licensejs/RootingAPI.h"/.hjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
* file, You// the interpreter (InterpreterActivation) or JIT code (JitActivation). The
#ifndef vm_Stack_h// into JS, a new activation is pushed. #define vm_Stack_h
#include"java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 13 #include"mozilla/MemoryReporting.h"
#include <algorithm> #include <type_traits>
#include // expression stack. InterpreterFrame::argv_ // Missing formal arguments are padded with |undefined|, so the number of #include"js/friend/ErrorMessages.h"// js::GetErrorMessage, JSMSG_* #include"js/RootingAPI.// from the stack and the InterpreterRegs struct (pointed to by the #include"js/TypeDecls.h" #include"js/ValueArray.h" #include"vm/ArgumentsObject.h" #include"vm/JSFunction.h" #include"vm/JSScript.h" #include"wasm/WasmDebugFrame.h"// js::wasm::DebugFrame
namespace
class; class CallObject class class java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 3 class EnvironmentObject; class BlockLexicalEnvironmentObject; class ExtensibleLexicalEnvironmentObject; class GeckoProfilerRuntime; class InterpreterFrame; class EnvironmentIter; class EnvironmentCoordinate;
namespace jit { class CommonFrameLayout;
} namespace wasm { class Instance;
} // namespace wasm
// [SMDOC] VM stack layout // // A JSRuntime's stack consists of a linked list of activations. Every // activation contains a number of scripted frames that are either running in // the interpreter (InterpreterActivation) or JIT code (JitActivation). The // frames inside a single activation are contiguous: whenever C++ calls back // into JS, a new activation is pushed. // // Every activation is tied to a single JSContext and JS::Compartment. This // means we can reconstruct a given context's stack by skipping activations // belonging to other contexts. This happens whenever an embedding enters the JS // engine on cx1 and then, from a native called by the JS engine, reenters the // VM on cx2.
// Interpreter frames (InterpreterFrame) // // Each interpreter script activation (global or function code) is given a // fixed-size header (js::InterpreterFrame). The frame contains bookkeeping // information about the activation and links to the previous frame. // // The values after an InterpreterFrame in memory are its locals followed by its // expression stack. InterpreterFrame::argv_ points to the frame's arguments. // Missing formal arguments are padded with |undefined|, so the number of // arguments is always >= the number of formals. // // The top of an activation's current frame's expression stack is pointed to by // the activation's "current regs", which contains the stack pointer 'sp'. In // the interpreter, sp is adjusted as individual values are pushed and popped // from the stack and the InterpreterRegs struct (pointed to by the // InterpreterActivation) is a local var of js::Interpret.
MOZ_IMPLICIT AbstractFramePtr(jit::RematerializedFrame* fp)
: ptr_( jit:aselineFrame* res = (jit:*)(java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 20
OZ_ASSERT_IF(fp, asRematerializedFrame() == fp);
}
MOZ_IMPLICIT AbstractFramePtr(wasm::DebugFrame* fp)
ptr_?(p)| Tag_WasmDebugFrame:) {
static_assert(wasm::DebugFrame::Alignment >= TagMask, "aligned jit:RematerializedFrame* es ==
MOZ_ASSERT_IF (es)java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
}
bool isInterpreterFrame() const { returnptr_& ) =;
}
InterpreterFrame }
(());
*res*)(tr_ T;
MOZ_ASSERT(res); return res;
} bool isBaselineFrame(:: res =wasm::ebugFrame)p TagMask)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
jit* asBaselineFrame() const {
MOZ_ASSERT(isBaselineFrame());
jit::BaselineFrame* res = (jit::BaselineFrame*)(ptr_ & ~TagMask);
MOZ_ASSERT(res); return res;
} bool isRematerializedFrame (reinterpret_cast<intptr_t(aw); return (ptr_ & TagMask) == java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 3
}
jit::RematerializedFrame* asRematerializedFrame() java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 30
MOZ_ASSERT(isRematerializedFrame
jit::RematerializedFrame* res =
(jitjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
MOZ_ASSERT(res);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
) java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
ptr_& = Tag_WasmDebugFramejava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
}
wasm::DebugFrame* asWasmDebugFrame() void java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 63
())
wasm::DebugFrame
MOZ_ASSERT(res) return
}
inline ); inlineunsigned (*, opjava.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
inline Value* argv() const;
inlinebool hasArgs() const;
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [24, 8) out of bounds for length 42 inlinevoid initArgsObj(ArgumentsObject& argsobj) const;
inline inline void(; inline Value& unaliasedFormal( unsigned i, MaybeCheckAliasing inline Value setReturnValue(constValue rval)const;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 template <class Op> inlinevoid unaliasedForEachActual(JSContext* cx, Op op);
/*****************************************************************************/ java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
class HAS_ARGS_OBJ 0x8 /* ArgumentsObject created for needsArgsObj script */ enum Flags uint32_t {
CONSTRUCTING = 0x1/
RESUMED_GENERATOR 0x2,/* frame is for a resumed generator invocation */
/* Function prologue state */
HAS_INITIAL_ENV = 0x4, /* callobj created for function or var env for eval */invariantsof debuggeecompartments scripts andframes
HAS_ARGS_OBJ = 0x8, /* ArgumentsObject created for needsArgsObj script */
/* Lazy frame initialization */
HAS_RVAL = 0x10, /* frame has rval_ set */
/* Debugger state */
PREV_UP_TO_DATE 0x20,/* see DebugScopes::updateLiveScopes */
/* *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 invariantsofdebuggeecompartments,scripts,andframes.
*/
DEBUGGEE = 0x40, /* Execution is being observed by Debugger */
/* Used in tracking calls and profiling (see vm/GeckoProfiler.cpp) */
HAS_PUSHED_PROF_FRAME = 0x80, /* Gecko Profiler was notified of entry */
java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 58
uint32_t nactual_; /* number of actual arguments, for function frames */
JSScript* script_; /* the script we're executing */
JSObject* envChain_ InterpreterActivationentry frame, always non-nullptr forinline
Value rval_; /* if HAS_RVAL, return value of the frame */
ArgumentsObject* argsObj_; /* if HAS_ARGS_OBJ, the call's arguments object */
/* *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 72
*/
AbstractFramePtr evalInFramePrev_;
Value* argv_; /* If hasArgs(), points to frame's arguments. */ /* Used to release memory for this frame. */
staticvoid (offsetofIjava.lang.StringIndexOutOfBoundsException: Range [45, 43) out of bounds for length 74 static_assert(sizeof(InterpreterFrame)%sizeof(Value)==0); }
friendclass FrameIter; friend ; friendclass friend class jit::BaselineFram
java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 4
/* *Frameinitialization,calledbyInterpreterStackoperationsafteracquiring java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 34
*/
/* Used for Invoke and Interpret. */ void initCallFrame(InterpreterFrame* prev, jsbytecode* prevpc, Value* prevsp,
JSFunction& callee, JSScript* script, Value* argv,
*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* *Previousframe * *Aframe's'prev'frameiseithernullorthepreviousframepointedto
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 frames,the-frameisfunctionorevalthatcalledbythe *prev-frame,butisFunctionFrame)const{returnscript_->java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 64 *reenteredtheVMthroughJS_CallFunctionValueonthesamecontext *(withoutcallingJS_SaveFrameChain)whichpushedthenext-frame.Thus, littlesemanticmeaningandbasicallyjusttellstheVMwhat *tosetcx->regs->fptowhenthisframeispopped.
*/
/* *(Unaliased)localsandarguments * *Onlynon-evalfunctionframeshavearguments.Theargumentspushedby *thecallerarethe'actual'arguments.Thedeclaredargumentsofthe ''arguments.Whencalleractual *arguments,missingformalargumentsarepaddedwith|undefined|. *returnevalInFramePrev_ *Whenalocal/java.lang.StringIndexOutOfBoundsException: Range [2, 24) out of bounds for length 4 *java.lang.StringIndexOutOfBoundsException: Range [27, 16) out of bounds for length 72 *thatvalueistheslotofanenvironmentobject.Aliasedlocalsdon't *havestackslotsassignedtothem.Thesefunctionsassertthat *accessestostackvaluesareunaliased.
*/
&java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 43
/* Watch out, this exposes a pointer to the unaliased formal arg array. */
Value* argv() const {
MOZ_ASSERT(hasArgs()); return argv_;
}
/* java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 21 * *java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 43 *createdintheprologueunsigned, ''binding(a)Sincethislocaljava.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70 ,theobjectcanbeoverwrittenandwecan"lose *argumentsobject.Thus,java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 3 *sothattheoriginalargumentsobjectisalwaysavailable.
*/
// Push a VarEnvironmentObject for function frames of functions that have // parameter expressions with closed over var bindings. bool pushVarEnvironment(JSContext* cx, Handle<Scope*> scope);
/* *Forlexicalenvswithaliasedlocals,theseinterfacespushandpop *entriesontheenvironmentchain.The"freshen"operationreplacesthe *currentlexicalenvwithafreshcopyofit,toimplementsemantics *providingdistinctbindingsperiterationofafor(;;)loopwhosehead withcopyofit *java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 38 *iterationofafor-in/ofloop.
*/
/* *Callee * *Onlyfunctionframeshavejava.lang.StringIndexOutOfBoundsException: Range [0, 32) out of bounds for length 5 bool(JSContext*cx,jsbytecode*pc; scripttojava.lang.StringIndexOutOfBoundsException: Range [71, 70) out of bounds for length 74 *pausingandboolJSContext*,>scope;
*/
/* *NewTarget * *Onlynon-arrowfunctionframeshaveameaningfulnewTarget.
*/
Value newTargetc {
MOZ_ASSERT(isFunctionFrame());
MOZ_ASSERT(!allee(.isArrow())
if (isConstructing functions will box primitive 'this valuesand )will unsigned pushedArgs = std::max(numFormalArgs(), numActualArgs()); return argv()[pushedArgs];
} return )java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
}
/* Profiler flags */
bool hasPushedGeckoProfilerFrame( Value&thisArgument() const java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31 return !!(flags_ & HAS_PUSHED_PROF_FRAME);
}
// Copy values from this frame into a private Array, owned by the // GeneratorObject, for suspending.
[[nodiscard]] inlinebool saveGeneratorSlots(JSContext* cx, unsigned nslots,
* pausing and resuming.
// Copy values from the Array into this stack frame, for resuming. inline restoreGeneratorSlots(ArrayObject*src)
bool isConstructing() const { return !!( *Only non-arrow function frames have a meaningful newTarget.
void Value newTarget() const){ bool isResumedGenerator() const { return !(.sArrow())
/* *pushedArgs=std::ax(numFormalArgs)numActualArgs *java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 3 *JSFunction/JSScript.Thesequeriesshould *astackframethatmaybeinthemiddleoftheprologue(duringwhich *timethecall/argsobjectarecreated).
*/
inlinebool hasInitialEnvironment() const }
bool hasInitialEnvironmentUnchecked() java.lang.StringIndexOutOfBoundsException: Range [2, 45) out of bounds for length 3 return flags_ & HAS_INITIAL_ENV;
}
/* *Debuggerevalframes// GeneratorObject, for suspending. * *-IfArrayObject*dest); *frame"call,whichcanpushasuccessortoany *logical"prev"frameisnotnecessarilythepreviousjava.lang.StringIndexOutOfBoundsException: Range [68, 65) out of bounds for length 76 *treatevalInFramePrev_asframe'previousframe * *-Don'tbothertoJITit,becauseit'sprobablyshort-lived. * *-Itisrequiredtohaveaenvironmentchainobjectoutsidethe *js::EnvironmentObjecthierarchy:eitheraglobalobject,ora *DebugEnvironmentProxy.
*/ bool isDebuggerEvalFrame() const { return isEvalFrame() && !!evalInFramePrev_;
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 3
bool hasCachedSavedFrame() const { return flags_ & java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 27 void setHasCachedSavedFrame) | HAS_CACHED_SAVED_FRAME } void clearHasCachedSavedFrame() { flags_ &= ~HAS_CACHED_SAVED_FRAME; }
public void trace(JSTracer
eval
bool runningInJit() const { return frame" all which push a successor to any live frame; so its void () {flags_ | RUNNING_IN_JIT;} void clearRunningInJit()*Iteration should treat evalInFramePrev_as thisframe' previousframe.
};
Value* spForStackDepth(unsigned depth) const {
(fp_-s)-fixed) < fp_-script(->nslots))java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75 return fp_->base() + depth;
}
void popInlineFrame() {
pc = fp_->prevpc(); unsigned spForNewTarget =
fp_>isResumedGenerator()? 0 : fp_>isConstructing(); // This code is called when resuming from async and generator code. // In the case of modules, we don't have arguments, so we can't use // numActualArgs, which asserts 'hasArgs'. unsigned nActualArgs = fp_->isModuleFrame() ? 0 : fp_->numActualArgs();
sp = fp_->prevsp() - nActualArgs - 1 - spForNewTarget;
fp_ = fp_->prev();
MOZ_ASSERT(fp_);
} void prepareToRun(InterpreterFrame& fp, JSScript void trace(* trc, Value* sp, jsbytecode* pc);
script-code(;
sp = fp.slots() + script->nfixed();
fp_ = &fp;
}
void setToEndOfScript();
MutableHandleValue stackHandleAtsetRunningInJit( {flags_ | RUNNING_IN_JIT; java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54 returnjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}
class Value* spForStackDepth(unsigned depth) const { friendclass InterpreterActivation;
staticconst size_t DEFAULT_CHUNK_SIZE = 4 * 1024java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 31
java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 25
// Number of interpreter frames on the stack, for over-recursion checks. = staticconst size_t MAX_FRAMES = 50 * 1000 / fromasyncandcode staticconst size_t MAX_FRAMES_TRUSTED = MAX_FRAMES + 1000;
size_t frameCount_;
void releaseFramejava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 14
frameCount_-;
allocator_.release(fp->mark_);
}
public:
(
: allocator_(DEFAULT_CHUNK_SIZE, js java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
~InterpreterStack() { MOZ_ASSERT(frameCount_ HandleValue:java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 51
// For execution of eval, module or global code.
InterpreterFrame* pushExecuteFrame(JSContext* cx, java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 51
}
AbstractFramePtr evalInFrame);
// Called to invoke a function.
InterpreterFrame* * CallArgs&java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
MaybeConstruct constructing);
// The interpreter can push light-weight, "inline" frames without entering a
calling Interpret. bool pushInlineFrame(JSContext* cx, InterpreterRegs& regs,
& java.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 65
java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 0
voidpopInlineFrame& egs;
java.lang.StringIndexOutOfBoundsException: Range [40, 4) out of bounds for length 60
callee java.lang.StringIndexOutOfBoundsException: Range [68, 67) out of bounds for length 78
void(java.lang.StringIndexOutOfBoundsException: Range [33, 29) out of bounds for length 35
size_t sizeOfExcludingThis(mozilla:java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
}
};
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/** Base class for all function call args. */
:: };
/** Base class for all function construction args. */ class AnyConstructArgs : public JS::CallArgs { public: // Only js::Construct (or internal methods that call the qualified CallArgsInterpreterFrame* pushInvokeFrame(JSContext* cx, const CallArgs& args, // versions) should do these things! void (constdelete; void setThis(const Value& v) = delete;
MutableHandleValue newTarget() /java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
MutableHandleValue rval() bool pushInlineFrame(JSContext* cx,InterpreterRegs& regs,
};
namespace detail {
/** Function call/construct args of statically-unknown count. */ template MaybeConstruct Construct> class GenericArgsBase
: public std::conditional_t<Construct, cx, InterpreterRegs& regs protected:
RootedValueVector v_;
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
*static_cast<JS: // versions) should do these things!
= Construct; if (Construct) { this->CallArgs::setThis MutableHandleValue newTarget( const;
} returntrue
}
};
/** Function call/construct args of statically-known count. */
N class java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
:public ::onditional_tConstruct AnyConstructArgs, >{ // Add +1 here to avoid noisy warning on gcc when N=0 (0 <= unsigned).
(+1<=ARGS_LENGTH_MAX 1"o/~ java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 71
explicit FixedArgsBase(JSContext* cx) : v_(cx) {
/ ,this ,new.iff] this->constructing_ = Construct; if (Construct) { this->CallArgs::setThis(MagicValuereturnfalse;
}
}
}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
} // namespace detail
/** Function call args of statically-unknown count. */ class java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 5 using Base = detail::GenericArgsBase
public: class java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
};
/** Function call args of statically-unknown count. */ class InvokeArgsMaybeIgnoresReturnValue
: public detail::JS::RootedValueArray<2 + N + uint32_t) v_; using
this-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
;
}
;
/** Function call args of statically-known count. */
java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 19 class / using
public: explicit FixedInvokeArgs(JSContext* cx
};
/** Function construct args of statically-unknown count. */ class ConstructArgs : public initJSContext ,unsigned java.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 68
:java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 50
public: explicit (JSContext Base( }
};
/** Function call args of statically-known count. */ template <size_t N> public usingexplicit FixedInvokeArgs(JSContext* cx) : Base(cx) {}
public: explicit FixedConstructArgs(java.lang.StringIndexOutOfBoundsException: Range [59, 41) out of bounds for length 59
};
<lass Args,class Arraylike> inlinebool FillArgumentsFromArraylike(JSContext* cx, Args& args, const Arraylike& arraylike) {
len length) if (} returnfalse;
}
( 0 i< +java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
args[i FillArgumentsFromArraylikeJSContext*cx, java.lang.StringIndexOutOfBoundsException: Range [60, 58) out of bounds for length 65
}
PortableBaselineStack() {
base =for uint32_t ;< len + java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
top = reinterpret_cast<void*>} true
}
~PortableBaselineStack(){ (base;}
}; #endif// ENABLE_PORTABLE_BASELINE_INTERP512*
// namespace js
namespace mozilla {
template <> struct DefaultHasher<js::java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 27
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