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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
*
* Copyright 2017 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef wasm_builtins_h
#define wasm_builtins_h
#include "wasm/WasmTypes.h"
namespace js {
namespace wasm {
class WasmFrameIter;
// These provide argument type information for a subset of the SymbolicAddress
// targets, for which type info is needed to generate correct stackmaps.
extern const SymbolicAddressSignature SASigSinD;
extern const SymbolicAddressSignature SASigCosD;
extern const SymbolicAddressSignature SASigTanD;
extern const SymbolicAddressSignature SASigASinD;
extern const SymbolicAddressSignature SASigACosD;
extern const SymbolicAddressSignature SASigATanD;
extern const SymbolicAddressSignature SASigCeilD;
extern const SymbolicAddressSignature SASigCeilF;
extern const SymbolicAddressSignature SASigFloorD;
extern const SymbolicAddressSignature SASigFloorF;
extern const SymbolicAddressSignature SASigTruncD;
extern const SymbolicAddressSignature SASigTruncF;
extern const SymbolicAddressSignature SASigNearbyIntD;
extern const SymbolicAddressSignature SASigNearbyIntF;
extern const SymbolicAddressSignature SASigExpD;
extern const SymbolicAddressSignature SASigLogD;
extern const SymbolicAddressSignature SASigPowD;
extern const SymbolicAddressSignature SASigATan2D;
extern const SymbolicAddressSignature SASigMemoryGrow;
extern const SymbolicAddressSignature SASigMemorySize;
extern const SymbolicAddressSignature SASigWaitI32;
extern const SymbolicAddressSignature SASigWaitI64;
extern const SymbolicAddressSignature SASigWake;
extern const SymbolicAddressSignature SASigMemCopy;
extern const SymbolicAddressSignature SASigMemCopyShared;
extern const SymbolicAddressSignature SASigDataDrop;
extern const SymbolicAddressSignature SASigMemFill;
extern const SymbolicAddressSignature SASigMemFillShared;
extern const SymbolicAddressSignature SASigMemInit;
extern const SymbolicAddressSignature SASigTableCopy;
extern const SymbolicAddressSignature SASigElemDrop;
extern const SymbolicAddressSignature SASigTableFill;
extern const SymbolicAddressSignature SASigTableGet;
extern const SymbolicAddressSignature SASigTableGrow;
extern const SymbolicAddressSignature SASigTableInit;
extern const SymbolicAddressSignature SASigTableSet;
extern const SymbolicAddressSignature SASigTableSize;
extern const SymbolicAddressSignature SASigRefFunc;
extern const SymbolicAddressSignature SASigPreBarrierFiltering;
extern const SymbolicAddressSignature SASigPostBarrier;
extern const SymbolicAddressSignature SASigPostBarrierFiltering;
extern const SymbolicAddressSignature SASigStructNew;
extern const SymbolicAddressSignature SASigStructNarrow;
// A SymbolicAddress that NeedsBuiltinThunk() will call through a thunk to the
// C++ function. This will be true for all normal calls from normal wasm
// function code. Only calls to C++ from other exits/thunks do not need a thunk.
bool NeedsBuiltinThunk(SymbolicAddress sym);
// This function queries whether pc is in one of the process's builtin thunks
// and, if so, returns the CodeRange and pointer to the code segment that the
// CodeRange is relative to.
bool LookupBuiltinThunk(void* pc, const CodeRange** codeRange,
uint8_t** codeBase);
// EnsureBuiltinThunksInitialized() must be called, and must succeed, before
// SymbolicAddressTarget() or MaybeGetBuiltinThunk(). This function creates all
// thunks for the process. ReleaseBuiltinThunks() should be called before
// ReleaseProcessExecutableMemory() so that the latter can assert that all
// executable code has been released.
bool EnsureBuiltinThunksInitialized();
void* HandleThrow(JSContext* cx, WasmFrameIter& iter);
void* SymbolicAddressTarget(SymbolicAddress sym);
void* MaybeGetBuiltinThunk(JSFunction* f, const FuncType& funcType);
void ReleaseBuiltinThunks();
void* AddressOf(SymbolicAddress imm, jit::ABIFunctionType* abiType);
#ifdef WASM_CODEGEN_DEBUG
void PrintI32(int32_t val);
void PrintF32(float val);
void PrintF64(double val);
void PrintPtr(uint8_t* val);
void PrintText(const char* out);
#endif
} // namespace wasm
} // namespace js
#endif // wasm_builtins_h