/* * 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. */ #include "config.h" #include "FTLStackMaps.h" #if ENABLE(FTL_JIT) #include "FTLLocation.h" #include #include #include namespace JSC { namespace FTL { template T readObject(DataView* view, unsigned& offset) { T result; result.parse(view, offset); return result; } void StackMaps::Constant::parse(DataView* view, unsigned& offset) { integer = view->read(offset, true); } void StackMaps::Constant::dump(PrintStream& out) const { out.printf("0x%016llx", integer); } void StackMaps::Location::parse(DataView* view, unsigned& offset) { kind = static_cast(view->read(offset, true)); size = view->read(offset, true); dwarfRegNum = view->read(offset, true); this->offset = view->read(offset, true); } void StackMaps::Location::dump(PrintStream& out) const { out.print("(", kind, ", reg", dwarfRegNum, ", off:", offset, ", size:", size, ")"); } GPRReg StackMaps::Location::directGPR() const { return FTL::Location::forStackmaps(nullptr, *this).directGPR(); } void StackMaps::Location::restoreInto( MacroAssembler& jit, StackMaps& stackmaps, char* savedRegisters, GPRReg result) const { FTL::Location::forStackmaps(&stackmaps, *this).restoreInto(jit, savedRegisters, result); } bool StackMaps::Record::parse(DataView* view, unsigned& offset) { patchpointID = view->read(offset, true); if (static_cast(patchpointID) read(offset, true); flags = view->read(offset, true); unsigned length = view->read(offset, true); while (length--) locations.append(readObject(view, offset)); return true; } void StackMaps::Record::dump(PrintStream& out) const { out.print( "(#", patchpointID, ", offset = ", instructionOffset, ", flags = ", flags, ", [", listDump(locations), "])"); } bool StackMaps::parse(DataView* view) { unsigned offset = 0; view->read(offset, true); // Reserved (header) uint32_t numConstants = view->read(offset, true); while (numConstants--) constants.append(readObject(view, offset)); uint32_t numRecords = view->read(offset, true); while (numRecords--) { Record record; if (!record.parse(view, offset)) return false; records.append(record); } return true; } void StackMaps::dump(PrintStream& out) const { out.print("Constants:[", listDump(constants), "], Records:[", listDump(records), "]"); } void StackMaps::dumpMultiline(PrintStream& out, const char* prefix) const { out.print(prefix, "Constants:\n"); for (unsigned i = 0; i (kind), "\n"); RELEASE_ASSERT_NOT_REACHED(); } } // namespace WTF #endif // ENABLE(FTL_JIT)