xref: /freebsd/contrib/llvm-project/llvm/lib/ObjCopy/wasm/WasmReader.cpp (revision 8a4dda33d67586ca2624f2a38417baa03a533a7f)
181ad6265SDimitry Andric //===- WasmReader.cpp -----------------------------------------------------===//
281ad6265SDimitry Andric //
381ad6265SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
481ad6265SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
581ad6265SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
681ad6265SDimitry Andric //
781ad6265SDimitry Andric //===----------------------------------------------------------------------===//
881ad6265SDimitry Andric 
981ad6265SDimitry Andric #include "WasmReader.h"
1081ad6265SDimitry Andric 
1181ad6265SDimitry Andric namespace llvm {
1281ad6265SDimitry Andric namespace objcopy {
1381ad6265SDimitry Andric namespace wasm {
1481ad6265SDimitry Andric 
1581ad6265SDimitry Andric using namespace object;
1681ad6265SDimitry Andric using namespace llvm::wasm;
1781ad6265SDimitry Andric 
create() const1881ad6265SDimitry Andric Expected<std::unique_ptr<Object>> Reader::create() const {
1981ad6265SDimitry Andric   auto Obj = std::make_unique<Object>();
2081ad6265SDimitry Andric   Obj->Header = WasmObj.getHeader();
2181ad6265SDimitry Andric   std::vector<Section> Sections;
2281ad6265SDimitry Andric   Obj->Sections.reserve(WasmObj.getNumSections());
2381ad6265SDimitry Andric   for (const SectionRef &Sec : WasmObj.sections()) {
2481ad6265SDimitry Andric     const WasmSection &WS = WasmObj.getWasmSection(Sec);
25*8a4dda33SDimitry Andric     Obj->Sections.push_back({static_cast<uint8_t>(WS.Type),
26*8a4dda33SDimitry Andric                              WS.HeaderSecSizeEncodingLen, WS.Name, WS.Content});
2781ad6265SDimitry Andric     // Give known sections standard names to allow them to be selected. (Custom
2881ad6265SDimitry Andric     // sections already have their names filled in by the parser).
2981ad6265SDimitry Andric     Section &ReaderSec = Obj->Sections.back();
3081ad6265SDimitry Andric     if (ReaderSec.SectionType > WASM_SEC_CUSTOM &&
3181ad6265SDimitry Andric         ReaderSec.SectionType <= WASM_SEC_LAST_KNOWN)
3281ad6265SDimitry Andric       ReaderSec.Name = sectionTypeToString(ReaderSec.SectionType);
3381ad6265SDimitry Andric   }
3481ad6265SDimitry Andric   return std::move(Obj);
3581ad6265SDimitry Andric }
3681ad6265SDimitry Andric 
3781ad6265SDimitry Andric } // end namespace wasm
3881ad6265SDimitry Andric } // end namespace objcopy
3981ad6265SDimitry Andric } // end namespace llvm
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