mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-08 09:51:46 +00:00
110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
/*
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* Copyright (C) 2016-2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "WasmCallee.h"
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#if ENABLE(WEBASSEMBLY)
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#include "WasmCalleeRegistry.h"
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#include "WasmCallingConvention.h"
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namespace JSC { namespace Wasm {
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Callee::Callee(Wasm::CompilationMode compilationMode)
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: m_compilationMode(compilationMode)
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{
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CalleeRegistry::singleton().registerCallee(this);
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}
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Callee::Callee(Wasm::CompilationMode compilationMode, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name)
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: m_compilationMode(compilationMode)
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, m_indexOrName(index, WTFMove(name))
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{
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CalleeRegistry::singleton().registerCallee(this);
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}
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Callee::~Callee()
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{
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CalleeRegistry::singleton().unregisterCallee(this);
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}
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void Callee::dump(PrintStream& out) const
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{
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out.print(makeString(m_indexOrName));
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}
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JITCallee::JITCallee(Wasm::CompilationMode compilationMode, Entrypoint&& entrypoint)
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: Callee(compilationMode)
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, m_entrypoint(WTFMove(entrypoint))
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{
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}
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JITCallee::JITCallee(Wasm::CompilationMode compilationMode, Entrypoint&& entrypoint, size_t index, std::pair<const Name*, RefPtr<NameSection>>&& name, Vector<UnlinkedWasmToWasmCall>&& unlinkedCalls)
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: Callee(compilationMode, index, WTFMove(name))
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, m_wasmToWasmCallsites(WTFMove(unlinkedCalls))
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, m_entrypoint(WTFMove(entrypoint))
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{
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}
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void LLIntCallee::setEntrypoint(MacroAssemblerCodePtr<WasmEntryPtrTag> entrypoint)
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{
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m_entrypoint = entrypoint;
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}
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MacroAssemblerCodePtr<WasmEntryPtrTag> LLIntCallee::entrypoint() const
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{
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return m_entrypoint;
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}
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RegisterAtOffsetList* LLIntCallee::calleeSaveRegisters()
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{
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static LazyNeverDestroyed<RegisterAtOffsetList> calleeSaveRegisters;
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static std::once_flag initializeFlag;
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std::call_once(initializeFlag, [] {
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RegisterSet registers;
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registers.set(GPRInfo::regCS0); // Wasm::Instance
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#if CPU(X86_64)
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registers.set(GPRInfo::regCS2); // PB
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#elif CPU(ARM64)
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registers.set(GPRInfo::regCS7); // PB
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#else
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#error Unsupported architecture.
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#endif
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ASSERT(registers.numberOfSetRegisters() == numberOfLLIntCalleeSaveRegisters);
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calleeSaveRegisters.construct(WTFMove(registers));
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});
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return &calleeSaveRegisters.get();
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}
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std::tuple<void*, void*> LLIntCallee::range() const
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{
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return { nullptr, nullptr };
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}
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} } // namespace JSC::Wasm
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#endif // ENABLE(WEBASSEMBLY)
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