blob: 14bbcf88875ec8328e55b47ffabb159f3fee7391 [file] [log] [blame]
//===- WasmWriter.h ---------------------------------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "WasmObject.h"
#include <cstdint>
#include <vector>
namespace llvm {
namespace objcopy {
namespace wasm {
class Writer {
Writer(Object &Obj, raw_ostream &Out) : Obj(Obj), Out(Out) {}
Error write();
using SectionHeader = SmallVector<char, 8>;
Object &Obj;
raw_ostream &Out;
std::vector<SectionHeader> SectionHeaders;
/// Generate a wasm section section header for S.
/// The header consists of
/// * A one-byte section ID (aka the section type).
/// * The size of the section contents, encoded as ULEB128.
/// * If the section is a custom section (type 0) it also has a name, which is
/// encoded as a length-prefixed string. The encoded section size *includes*
/// this string.
/// See
/// Return the header and store the total size in SectionSize.
static SectionHeader createSectionHeader(const Section &S,
size_t &SectionSize);
size_t finalize();
} // end namespace wasm
} // end namespace objcopy
} // end namespace llvm