1 //===-- WasmDump.cpp - wasm-specific dumper ---------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
10 /// This file implements the wasm-specific dumper for llvm-objdump.
12 //===----------------------------------------------------------------------===//
14 #include "llvm-objdump.h"
15 #include "llvm/Object/Wasm.h"
18 using namespace object;
20 void llvm::printWasmFileHeader(const object::ObjectFile *Obj) {
21 const WasmObjectFile *File = dyn_cast<const WasmObjectFile>(Obj);
23 outs() << "Program Header:\n";
24 outs() << "Version: 0x";
25 outs().write_hex(File->getHeader().Version);
30 llvm::getWasmRelocationValueString(const WasmObjectFile *Obj,
31 const RelocationRef &RelRef,
32 SmallVectorImpl<char> &Result) {
33 const wasm::WasmRelocation &Rel = Obj->getWasmRelocation(RelRef);
34 symbol_iterator SI = RelRef.getSymbol();
36 raw_string_ostream Fmt(FmtBuf);
37 if (SI == Obj->symbol_end()) {
38 // Not all wasm relocations have symbols associated with them.
39 // In particular R_WASM_TYPE_INDEX_LEB.
42 Expected<StringRef> SymNameOrErr = SI->getName();
44 return errorToErrorCode(SymNameOrErr.takeError());
45 StringRef SymName = *SymNameOrErr;
46 Result.append(SymName.begin(), SymName.end());
48 Fmt << (Rel.Addend < 0 ? "" : "+") << Rel.Addend;
50 Result.append(FmtBuf.begin(), FmtBuf.end());
51 return std::error_code();