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|
// Copyright 2016 the V8 project authors. All rights reserved. Use of
// this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_WASM_WASM_OBJECTS_H_
#define V8_WASM_WASM_OBJECTS_H_
#include "src/base/bits.h"
#include "src/debug/debug.h"
#include "src/debug/interface-types.h"
#include "src/heap/heap.h"
#include "src/objects.h"
#include "src/objects/script.h"
#include "src/signature.h"
#include "src/wasm/value-type.h"
// Has to be the last include (doesn't have include guards)
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
namespace wasm {
class InterpretedFrame;
struct InterpretedFrameDeleter;
class NativeModule;
struct ModuleEnv;
class WasmCode;
struct WasmModule;
class SignatureMap;
class WireBytesRef;
class WasmInterpreter;
using FunctionSig = Signature<ValueType>;
struct WasmFeatures;
} // namespace wasm
class BreakPoint;
class JSArrayBuffer;
class SeqOneByteString;
class WasmDebugInfo;
class WasmInstanceObject;
template <class CppType>
class Managed;
#define DECL_OPTIONAL_ACCESSORS(name, type) \
V8_INLINE bool has_##name(); \
DECL_ACCESSORS(name, type)
// An entry in an indirect function table (IFT).
// Each entry in the IFT has the following fields:
// - instance = target instance
// - sig_id = signature id of function
// - target = entrypoint to wasm code for the function, or wasm-to-js wrapper
class IndirectFunctionTableEntry {
public:
inline IndirectFunctionTableEntry(Handle<WasmInstanceObject>, int index);
void clear();
void set(int sig_id, WasmInstanceObject* instance, Address call_target);
WasmInstanceObject* instance();
int sig_id();
Address target();
private:
Handle<WasmInstanceObject> const instance_;
int const index_;
};
// An entry for an imported function.
// (note this is not called a "table" since it is not dynamically indexed).
// The imported function entries are used to call imported functions.
// For each imported function there is an entry which is either:
// - an imported JSReceiver, which has fields
// - instance = importing instance
// - receiver = JSReceiver, either a JS function or other callable
// - target = pointer to wasm-to-js wrapper code entrypoint
// - an imported wasm function from another instance, which has fields
// - instance = target instance
// - target = entrypoint for the function
class ImportedFunctionEntry {
public:
inline ImportedFunctionEntry(Handle<WasmInstanceObject>, int index);
// Initialize this entry as a {JSReceiver} call.
void set_wasm_to_js(JSReceiver* callable,
const wasm::WasmCode* wasm_to_js_wrapper);
// Initialize this entry as a WASM to WASM call.
void set_wasm_to_wasm(WasmInstanceObject* target_instance,
Address call_target);
WasmInstanceObject* instance();
JSReceiver* callable();
Address target();
bool is_js_receiver_entry();
private:
Handle<WasmInstanceObject> const instance_;
int const index_;
};
// Representation of a WebAssembly.Module JavaScript-level object.
class WasmModuleObject : public JSObject {
public:
DECL_CAST(WasmModuleObject)
DECL_ACCESSORS(managed_native_module, Managed<wasm::NativeModule>)
DECL_ACCESSORS(export_wrappers, FixedArray)
DECL_ACCESSORS(script, Script)
DECL_ACCESSORS(weak_instance_list, WeakArrayList)
DECL_OPTIONAL_ACCESSORS(asm_js_offset_table, ByteArray)
DECL_OPTIONAL_ACCESSORS(breakpoint_infos, FixedArray)
inline wasm::NativeModule* native_module() const;
inline const wasm::WasmModule* module() const;
inline void reset_breakpoint_infos();
// Dispatched behavior.
DECL_PRINTER(WasmModuleObject)
DECL_VERIFIER(WasmModuleObject)
// Layout description.
#define WASM_MODULE_OBJECT_FIELDS(V) \
V(kNativeModuleOffset, kPointerSize) \
V(kExportWrappersOffset, kPointerSize) \
V(kScriptOffset, kPointerSize) \
V(kWeakInstanceListOffset, kPointerSize) \
V(kAsmJsOffsetTableOffset, kPointerSize) \
V(kBreakPointInfosOffset, kPointerSize) \
V(kSize, 0)
DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize,
WASM_MODULE_OBJECT_FIELDS)
#undef WASM_MODULE_OBJECT_FIELDS
// Creates a new {WasmModuleObject} with a new {NativeModule} underneath.
static Handle<WasmModuleObject> New(
Isolate* isolate, const wasm::WasmFeatures& enabled,
std::shared_ptr<const wasm::WasmModule> module, wasm::ModuleEnv& env,
OwnedVector<const uint8_t> wire_bytes, Handle<Script> script,
Handle<ByteArray> asm_js_offset_table);
// Creates a new {WasmModuleObject} for an existing {NativeModule} that is
// reference counted and might be shared between multiple Isolates.
static Handle<WasmModuleObject> New(
Isolate* isolate, std::shared_ptr<wasm::NativeModule> native_module,
Handle<Script> script);
// Set a breakpoint on the given byte position inside the given module.
// This will affect all live and future instances of the module.
// The passed position might be modified to point to the next breakable
// location inside the same function.
// If it points outside a function, or behind the last breakable location,
// this function returns false and does not set any breakpoint.
static bool SetBreakPoint(Handle<WasmModuleObject>, int* position,
Handle<BreakPoint> break_point);
// Check whether this module was generated from asm.js source.
inline bool is_asm_js();
static void AddBreakpoint(Handle<WasmModuleObject>, int position,
Handle<BreakPoint> break_point);
static void SetBreakpointsOnNewInstance(Handle<WasmModuleObject>,
Handle<WasmInstanceObject>);
// Get the module name, if set. Returns an empty handle otherwise.
static MaybeHandle<String> GetModuleNameOrNull(Isolate*,
Handle<WasmModuleObject>);
// Get the function name of the function identified by the given index.
// Returns a null handle if the function is unnamed or the name is not a valid
// UTF-8 string.
static MaybeHandle<String> GetFunctionNameOrNull(Isolate*,
Handle<WasmModuleObject>,
uint32_t func_index);
// Get the function name of the function identified by the given index.
// Returns "wasm-function[func_index]" if the function is unnamed or the
// name is not a valid UTF-8 string.
static Handle<String> GetFunctionName(Isolate*, Handle<WasmModuleObject>,
uint32_t func_index);
// Get the raw bytes of the function name of the function identified by the
// given index.
// Meant to be used for debugging or frame printing.
// Does not allocate, hence gc-safe.
Vector<const uint8_t> GetRawFunctionName(uint32_t func_index);
// Return the byte offset of the function identified by the given index.
// The offset will be relative to the start of the module bytes.
// Returns -1 if the function index is invalid.
int GetFunctionOffset(uint32_t func_index);
// Returns the function containing the given byte offset.
// Returns -1 if the byte offset is not contained in any function of this
// module.
int GetContainingFunction(uint32_t byte_offset);
// Translate from byte offset in the module to function number and byte offset
// within that function, encoded as line and column in the position info.
// Returns true if the position is valid inside this module, false otherwise.
bool GetPositionInfo(uint32_t position, Script::PositionInfo* info);
// Get the source position from a given function index and byte offset,
// for either asm.js or pure WASM modules.
static int GetSourcePosition(Handle<WasmModuleObject>, uint32_t func_index,
uint32_t byte_offset,
bool is_at_number_conversion);
// Compute the disassembly of a wasm function.
// Returns the disassembly string and a list of <byte_offset, line, column>
// entries, mapping wasm byte offsets to line and column in the disassembly.
// The list is guaranteed to be ordered by the byte_offset.
// Returns an empty string and empty vector if the function index is invalid.
debug::WasmDisassembly DisassembleFunction(int func_index);
// Extract a portion of the wire bytes as UTF-8 string.
// Returns a null handle if the respective bytes do not form a valid UTF-8
// string.
static MaybeHandle<String> ExtractUtf8StringFromModuleBytes(
Isolate* isolate, Handle<WasmModuleObject>, wasm::WireBytesRef ref);
static MaybeHandle<String> ExtractUtf8StringFromModuleBytes(
Isolate* isolate, Vector<const uint8_t> wire_byte,
wasm::WireBytesRef ref);
// Get a list of all possible breakpoints within a given range of this module.
bool GetPossibleBreakpoints(const debug::Location& start,
const debug::Location& end,
std::vector<debug::BreakLocation>* locations);
// Return an empty handle if no breakpoint is hit at that location, or a
// FixedArray with all hit breakpoint objects.
static MaybeHandle<FixedArray> CheckBreakPoints(Isolate*,
Handle<WasmModuleObject>,
int position);
};
// Representation of a WebAssembly.Table JavaScript-level object.
class WasmTableObject : public JSObject {
public:
DECL_CAST(WasmTableObject)
DECL_ACCESSORS(functions, FixedArray)
// TODO(titzer): introduce DECL_I64_ACCESSORS macro
DECL_ACCESSORS(maximum_length, Object)
DECL_ACCESSORS(dispatch_tables, FixedArray)
// Layout description.
#define WASM_TABLE_OBJECT_FIELDS(V) \
V(kFunctionsOffset, kPointerSize) \
V(kMaximumLengthOffset, kPointerSize) \
V(kDispatchTablesOffset, kPointerSize) \
V(kSize, 0)
DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize, WASM_TABLE_OBJECT_FIELDS)
#undef WASM_TABLE_OBJECT_FIELDS
inline uint32_t current_length();
void Grow(Isolate* isolate, uint32_t count);
static Handle<WasmTableObject> New(Isolate* isolate, uint32_t initial,
int64_t maximum,
Handle<FixedArray>* js_functions);
static void AddDispatchTable(Isolate* isolate, Handle<WasmTableObject> table,
Handle<WasmInstanceObject> instance,
int table_index);
static void Set(Isolate* isolate, Handle<WasmTableObject> table,
int32_t index, Handle<JSFunction> function);
static void UpdateDispatchTables(Isolate* isolate,
Handle<WasmTableObject> table,
int table_index, wasm::FunctionSig* sig,
Handle<WasmInstanceObject> from_instance,
Address call_target);
static void ClearDispatchTables(Isolate* isolate,
Handle<WasmTableObject> table, int index);
};
// Representation of a WebAssembly.Memory JavaScript-level object.
class WasmMemoryObject : public JSObject {
public:
DECL_CAST(WasmMemoryObject)
DECL_ACCESSORS(array_buffer, JSArrayBuffer)
DECL_INT_ACCESSORS(maximum_pages)
DECL_OPTIONAL_ACCESSORS(instances, WeakArrayList)
// Layout description.
#define WASM_MEMORY_OBJECT_FIELDS(V) \
V(kArrayBufferOffset, kPointerSize) \
V(kMaximumPagesOffset, kPointerSize) \
V(kInstancesOffset, kPointerSize) \
V(kSize, 0)
DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize,
WASM_MEMORY_OBJECT_FIELDS)
#undef WASM_MEMORY_OBJECT_FIELDS
// Add an instance to the internal (weak) list.
static void AddInstance(Isolate* isolate, Handle<WasmMemoryObject> memory,
Handle<WasmInstanceObject> object);
// Remove an instance from the internal (weak) list.
static void RemoveInstance(Handle<WasmMemoryObject> memory,
Handle<WasmInstanceObject> object);
uint32_t current_pages();
inline bool has_maximum_pages();
// Return whether the underlying backing store has guard regions large enough
// to be used with trap handlers.
bool has_full_guard_region(Isolate* isolate);
V8_EXPORT_PRIVATE static Handle<WasmMemoryObject> New(
Isolate* isolate, MaybeHandle<JSArrayBuffer> buffer, int32_t maximum);
static int32_t Grow(Isolate*, Handle<WasmMemoryObject>, uint32_t pages);
};
// Representation of a WebAssembly.Global JavaScript-level object.
class WasmGlobalObject : public JSObject {
public:
DECL_CAST(WasmGlobalObject)
DECL_ACCESSORS(array_buffer, JSArrayBuffer)
DECL_INT32_ACCESSORS(offset)
DECL_INT_ACCESSORS(flags)
DECL_PRIMITIVE_ACCESSORS(type, wasm::ValueType)
DECL_BOOLEAN_ACCESSORS(is_mutable)
#define WASM_GLOBAL_OBJECT_FLAGS_BIT_FIELDS(V, _) \
V(TypeBits, wasm::ValueType, 8, _) \
V(IsMutableBit, bool, 1, _)
DEFINE_BIT_FIELDS(WASM_GLOBAL_OBJECT_FLAGS_BIT_FIELDS)
#undef WASM_GLOBAL_OBJECT_FLAGS_BIT_FIELDS
// Layout description.
#define WASM_GLOBAL_OBJECT_FIELDS(V) \
V(kArrayBufferOffset, kPointerSize) \
V(kOffsetOffset, kPointerSize) \
V(kFlagsOffset, kPointerSize) \
V(kSize, 0)
DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize,
WASM_GLOBAL_OBJECT_FIELDS)
#undef WASM_GLOBAL_OBJECT_FIELDS
V8_EXPORT_PRIVATE static MaybeHandle<WasmGlobalObject> New(
Isolate* isolate, MaybeHandle<JSArrayBuffer> buffer, wasm::ValueType type,
int32_t offset, bool is_mutable);
inline int type_size() const;
inline int32_t GetI32();
inline int64_t GetI64();
inline float GetF32();
inline double GetF64();
inline void SetI32(int32_t value);
inline void SetI64(int64_t value);
inline void SetF32(float value);
inline void SetF64(double value);
private:
// This function returns the address of the global's data in the
// JSArrayBuffer. This buffer may be allocated on-heap, in which case it may
// not have a fixed address.
inline Address address() const;
};
// Representation of a WebAssembly.Instance JavaScript-level object.
class WasmInstanceObject : public JSObject {
public:
DECL_CAST(WasmInstanceObject)
DECL_ACCESSORS(module_object, WasmModuleObject)
DECL_ACCESSORS(exports_object, JSObject)
DECL_ACCESSORS(native_context, Context)
DECL_OPTIONAL_ACCESSORS(memory_object, WasmMemoryObject)
DECL_OPTIONAL_ACCESSORS(globals_buffer, JSArrayBuffer)
DECL_OPTIONAL_ACCESSORS(imported_mutable_globals_buffers, FixedArray)
DECL_OPTIONAL_ACCESSORS(debug_info, WasmDebugInfo)
DECL_OPTIONAL_ACCESSORS(table_object, WasmTableObject)
DECL_ACCESSORS(imported_function_instances, FixedArray)
DECL_ACCESSORS(imported_function_callables, FixedArray)
DECL_OPTIONAL_ACCESSORS(indirect_function_table_instances, FixedArray)
DECL_OPTIONAL_ACCESSORS(managed_native_allocations, Foreign)
DECL_ACCESSORS(undefined_value, Oddball)
DECL_ACCESSORS(null_value, Oddball)
DECL_ACCESSORS(centry_stub, Code)
DECL_PRIMITIVE_ACCESSORS(memory_start, byte*)
DECL_PRIMITIVE_ACCESSORS(memory_size, size_t)
DECL_PRIMITIVE_ACCESSORS(memory_mask, size_t)
DECL_PRIMITIVE_ACCESSORS(roots_array_address, Address)
DECL_PRIMITIVE_ACCESSORS(stack_limit_address, Address)
DECL_PRIMITIVE_ACCESSORS(real_stack_limit_address, Address)
DECL_PRIMITIVE_ACCESSORS(imported_function_targets, Address*)
DECL_PRIMITIVE_ACCESSORS(globals_start, byte*)
DECL_PRIMITIVE_ACCESSORS(imported_mutable_globals, Address*)
DECL_PRIMITIVE_ACCESSORS(indirect_function_table_size, uint32_t)
DECL_PRIMITIVE_ACCESSORS(indirect_function_table_sig_ids, uint32_t*)
DECL_PRIMITIVE_ACCESSORS(indirect_function_table_targets, Address*)
DECL_PRIMITIVE_ACCESSORS(jump_table_start, Address)
// Dispatched behavior.
DECL_PRINTER(WasmInstanceObject)
DECL_VERIFIER(WasmInstanceObject)
// Layout description.
#define WASM_INSTANCE_OBJECT_FIELDS(V) \
V(kModuleObjectOffset, kPointerSize) \
V(kExportsObjectOffset, kPointerSize) \
V(kNativeContextOffset, kPointerSize) \
V(kMemoryObjectOffset, kPointerSize) \
V(kGlobalsBufferOffset, kPointerSize) \
V(kImportedMutableGlobalsBuffersOffset, kPointerSize) \
V(kDebugInfoOffset, kPointerSize) \
V(kTableObjectOffset, kPointerSize) \
V(kImportedFunctionInstancesOffset, kPointerSize) \
V(kImportedFunctionCallablesOffset, kPointerSize) \
V(kIndirectFunctionTableInstancesOffset, kPointerSize) \
V(kManagedNativeAllocationsOffset, kPointerSize) \
V(kUndefinedValueOffset, kPointerSize) \
V(kNullValueOffset, kPointerSize) \
V(kCEntryStubOffset, kPointerSize) \
V(kFirstUntaggedOffset, 0) /* marker */ \
V(kMemoryStartOffset, kPointerSize) /* untagged */ \
V(kMemorySizeOffset, kSizetSize) /* untagged */ \
V(kMemoryMaskOffset, kSizetSize) /* untagged */ \
V(kRootsArrayAddressOffset, kPointerSize) /* untagged */ \
V(kStackLimitAddressOffset, kPointerSize) /* untagged */ \
V(kRealStackLimitAddressOffset, kPointerSize) /* untagged */ \
V(kImportedFunctionTargetsOffset, kPointerSize) /* untagged */ \
V(kGlobalsStartOffset, kPointerSize) /* untagged */ \
V(kImportedMutableGlobalsOffset, kPointerSize) /* untagged */ \
V(kIndirectFunctionTableSigIdsOffset, kPointerSize) /* untagged */ \
V(kIndirectFunctionTableTargetsOffset, kPointerSize) /* untagged */ \
V(kJumpTableStartOffset, kPointerSize) /* untagged */ \
V(kIndirectFunctionTableSizeOffset, kUInt32Size) /* untagged */ \
V(k64BitArchPaddingOffset, kPointerSize - kUInt32Size) /* padding */ \
V(kSize, 0)
DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize,
WASM_INSTANCE_OBJECT_FIELDS)
#undef WASM_INSTANCE_OBJECT_FIELDS
V8_EXPORT_PRIVATE const wasm::WasmModule* module();
static bool EnsureIndirectFunctionTableWithMinimumSize(
Handle<WasmInstanceObject> instance, uint32_t minimum_size);
bool has_indirect_function_table();
void SetRawMemory(byte* mem_start, size_t mem_size);
// Get the debug info associated with the given wasm object.
// If no debug info exists yet, it is created automatically.
static Handle<WasmDebugInfo> GetOrCreateDebugInfo(Handle<WasmInstanceObject>);
static Handle<WasmInstanceObject> New(Isolate*, Handle<WasmModuleObject>);
static void InstallFinalizer(Isolate* isolate,
Handle<WasmInstanceObject> instance);
Address GetCallTarget(uint32_t func_index);
// Iterates all fields in the object except the untagged fields.
class BodyDescriptor;
// No weak fields.
typedef BodyDescriptor BodyDescriptorWeak;
};
// A WASM function that is wrapped and exported to JavaScript.
class WasmExportedFunction : public JSFunction {
public:
WasmInstanceObject* instance();
V8_EXPORT_PRIVATE int function_index();
V8_EXPORT_PRIVATE static WasmExportedFunction* cast(Object* object);
static bool IsWasmExportedFunction(Object* object);
static Handle<WasmExportedFunction> New(Isolate* isolate,
Handle<WasmInstanceObject> instance,
MaybeHandle<String> maybe_name,
int func_index, int arity,
Handle<Code> export_wrapper);
Address GetWasmCallTarget();
};
// Information for a WasmExportedFunction which is referenced as the function
// data of the SharedFunctionInfo underlying the function. For details please
// see the {SharedFunctionInfo::HasWasmExportedFunctionData} predicate.
class WasmExportedFunctionData : public Struct {
public:
DECL_ACCESSORS(wrapper_code, Code);
DECL_ACCESSORS(instance, WasmInstanceObject)
DECL_INT_ACCESSORS(jump_table_offset);
DECL_INT_ACCESSORS(function_index);
DECL_CAST(WasmExportedFunctionData)
// Dispatched behavior.
DECL_PRINTER(WasmExportedFunctionData)
DECL_VERIFIER(WasmExportedFunctionData)
// Layout description.
#define WASM_EXPORTED_FUNCTION_DATA_FIELDS(V) \
V(kWrapperCodeOffset, kPointerSize) \
V(kInstanceOffset, kPointerSize) \
V(kJumpTableOffsetOffset, kPointerSize) /* Smi */ \
V(kFunctionIndexOffset, kPointerSize) /* Smi */ \
V(kSize, 0)
DEFINE_FIELD_OFFSET_CONSTANTS(HeapObject::kHeaderSize,
WASM_EXPORTED_FUNCTION_DATA_FIELDS)
#undef WASM_EXPORTED_FUNCTION_DATA_FIELDS
};
class WasmDebugInfo : public Struct, public NeverReadOnlySpaceObject {
public:
using NeverReadOnlySpaceObject::GetHeap;
using NeverReadOnlySpaceObject::GetIsolate;
DECL_ACCESSORS(wasm_instance, WasmInstanceObject)
DECL_ACCESSORS(interpreter_handle, Object);
DECL_ACCESSORS(interpreted_functions, Object);
DECL_OPTIONAL_ACCESSORS(locals_names, FixedArray)
DECL_OPTIONAL_ACCESSORS(c_wasm_entries, FixedArray)
DECL_OPTIONAL_ACCESSORS(c_wasm_entry_map, Managed<wasm::SignatureMap>)
DECL_CAST(WasmDebugInfo)
// Dispatched behavior.
DECL_PRINTER(WasmDebugInfo)
DECL_VERIFIER(WasmDebugInfo)
// Layout description.
#define WASM_DEBUG_INFO_FIELDS(V) \
V(kInstanceOffset, kPointerSize) \
V(kInterpreterHandleOffset, kPointerSize) \
V(kInterpretedFunctionsOffset, kPointerSize) \
V(kLocalsNamesOffset, kPointerSize) \
V(kCWasmEntriesOffset, kPointerSize) \
V(kCWasmEntryMapOffset, kPointerSize) \
V(kSize, 0)
DEFINE_FIELD_OFFSET_CONSTANTS(HeapObject::kHeaderSize, WASM_DEBUG_INFO_FIELDS)
#undef WASM_DEBUG_INFO_FIELDS
static Handle<WasmDebugInfo> New(Handle<WasmInstanceObject>);
// Setup a WasmDebugInfo with an existing WasmInstance struct.
// Returns a pointer to the interpreter instantiated inside this
// WasmDebugInfo.
// Use for testing only.
V8_EXPORT_PRIVATE static wasm::WasmInterpreter* SetupForTesting(
Handle<WasmInstanceObject>);
// Set a breakpoint in the given function at the given byte offset within that
// function. This will redirect all future calls to this function to the
// interpreter and will always pause at the given offset.
static void SetBreakpoint(Handle<WasmDebugInfo>, int func_index, int offset);
// Make a set of functions always execute in the interpreter without setting
// breakpoints.
static void RedirectToInterpreter(Handle<WasmDebugInfo>,
Vector<int> func_indexes);
void PrepareStep(StepAction);
// Execute the specified function in the interpreter. Read arguments from
// arg_buffer.
// The frame_pointer will be used to identify the new activation of the
// interpreter for unwinding and frame inspection.
// Returns true if exited regularly, false if a trap occurred. In the latter
// case, a pending exception will have been set on the isolate.
static bool RunInterpreter(Isolate* isolate, Handle<WasmDebugInfo>,
Address frame_pointer, int func_index,
Address arg_buffer);
// Get the stack of the wasm interpreter as pairs of <function index, byte
// offset>. The list is ordered bottom-to-top, i.e. caller before callee.
std::vector<std::pair<uint32_t, int>> GetInterpretedStack(
Address frame_pointer);
std::unique_ptr<wasm::InterpretedFrame, wasm::InterpretedFrameDeleter>
GetInterpretedFrame(Address frame_pointer, int frame_index);
// Unwind the interpreted stack belonging to the passed interpreter entry
// frame.
void Unwind(Address frame_pointer);
// Returns the number of calls / function frames executed in the interpreter.
uint64_t NumInterpretedCalls();
// Get scope details for a specific interpreted frame.
// This returns a JSArray of length two: One entry for the global scope, one
// for the local scope. Both elements are JSArrays of size
// ScopeIterator::kScopeDetailsSize and layout as described in debug-scopes.h.
// The global scope contains information about globals and the memory.
// The local scope contains information about parameters, locals, and stack
// values.
static Handle<JSObject> GetScopeDetails(Handle<WasmDebugInfo>,
Address frame_pointer,
int frame_index);
static Handle<JSObject> GetGlobalScopeObject(Handle<WasmDebugInfo>,
Address frame_pointer,
int frame_index);
static Handle<JSObject> GetLocalScopeObject(Handle<WasmDebugInfo>,
Address frame_pointer,
int frame_index);
static Handle<JSFunction> GetCWasmEntry(Handle<WasmDebugInfo>,
wasm::FunctionSig*);
};
#undef DECL_OPTIONAL_ACCESSORS
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_WASM_WASM_OBJECTS_H_
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