c196488531
getRelocationValueString is a dispatcher function that calls the corresponding ELF/COFF/Wasm/MachO implementations that currently live in the llvm-objdump.cpp file. These implementations better be moved to ELFDump.cpp, COFFDump.cpp and other corresponding files, to move platform specific implementation out from the common logic. The patch does that. Also, I had to move ToolSectionFilter helper and SectionFilterIterator, SectionFilter to a header to make them available across the objdump code. Differential revision: https://reviews.llvm.org/D56842 llvm-svn: 351545
54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
//===-- WasmDump.cpp - wasm-specific dumper ---------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file implements the wasm-specific dumper for llvm-objdump.
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///
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//===----------------------------------------------------------------------===//
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#include "llvm-objdump.h"
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#include "llvm/Object/Wasm.h"
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using namespace llvm;
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using namespace object;
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void llvm::printWasmFileHeader(const object::ObjectFile *Obj) {
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const WasmObjectFile *File = dyn_cast<const WasmObjectFile>(Obj);
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outs() << "Program Header:\n";
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outs() << "Version: 0x";
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outs().write_hex(File->getHeader().Version);
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outs() << "\n";
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}
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std::error_code
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llvm::getWasmRelocationValueString(const WasmObjectFile *Obj,
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const RelocationRef &RelRef,
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SmallVectorImpl<char> &Result) {
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const wasm::WasmRelocation &Rel = Obj->getWasmRelocation(RelRef);
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symbol_iterator SI = RelRef.getSymbol();
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std::string FmtBuf;
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raw_string_ostream Fmt(FmtBuf);
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if (SI == Obj->symbol_end()) {
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// Not all wasm relocations have symbols associated with them.
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// In particular R_WEBASSEMBLY_TYPE_INDEX_LEB.
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Fmt << Rel.Index;
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} else {
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Expected<StringRef> SymNameOrErr = SI->getName();
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if (!SymNameOrErr)
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return errorToErrorCode(SymNameOrErr.takeError());
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StringRef SymName = *SymNameOrErr;
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Result.append(SymName.begin(), SymName.end());
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}
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Fmt << (Rel.Addend < 0 ? "" : "+") << Rel.Addend;
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Fmt.flush();
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Result.append(FmtBuf.begin(), FmtBuf.end());
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return std::error_code();
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}
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