/* * Copyright (C) 2013 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef FTLStackMaps_h #define FTLStackMaps_h #include #if ENABLE(FTL_JIT) #include "DataView.h" #include "GPRInfo.h" #include namespace JSC { class MacroAssembler; namespace FTL { struct StackMaps { struct Constant { int64_t integer; void parse(DataView*, unsigned& offset); void dump(PrintStream& out) const; }; struct Location { enum Kind : int8_t { Unprocessed, Register, Direct, Indirect, Constant, ConstantIndex }; uint16_t dwarfRegNum; // Represented as a 12-bit int in the section. int8_t size; Kind kind; int16_t offset; void parse(DataView*, unsigned& offset); void dump(PrintStream& out) const; GPRReg directGPR() const; void restoreInto(MacroAssembler&, StackMaps&, char* savedRegisters, GPRReg result) const; }; struct Record { uint32_t patchpointID; uint32_t instructionOffset; uint16_t flags; Vector locations; bool parse(DataView*, unsigned& offset); void dump(PrintStream&) const; }; Vector constants; Vector records; bool parse(DataView*); // Returns true on parse success, false on failure. Failure means that LLVM is signaling compile failure to us. void dump(PrintStream&) const; void dumpMultiline(PrintStream&, const char* prefix) const; typedef HashMap, WTF::UnsignedWithZeroKeyHashTraits> RecordMap; RecordMap getRecordMap() const; }; } } // namespace JSC::FTL namespace WTF { void printInternal(PrintStream&, JSC::FTL::StackMaps::Location::Kind); } // namespace WTF #endif // ENABLE(FTL_JIT) #endif // FTLStackMaps_h