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//===- OutputSegment.h ------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLD_WASM_OUTPUT_SEGMENT_H
#define LLD_WASM_OUTPUT_SEGMENT_H
#include "InputChunks.h"
#include "lld/Common/ErrorHandler.h"
#include "llvm/Object/Wasm.h"
namespace lld {
namespace wasm {
class InputSegment;
class OutputSegment {
public:
OutputSegment(StringRef n) : name(n) {}
void addInputSegment(InputChunk *inSeg);
void finalizeInputSegments();
// In most circumstances BSS segments don't need to be written
// to the output binary. However if the memory is imported, and
// we can't use memory.fill during startup (due to lack of bulk
// memory feature) then we include BSS segments verbatim.
bool requiredInBinary() const { return !isBss || config->emitBssSegments; }
bool isTLS() const { return name == ".tdata"; }
StringRef name;
bool isBss = false;
uint32_t index = 0;
uint32_t linkingFlags = 0;
uint32_t initFlags = 0;
uint32_t sectionOffset = 0;
uint32_t alignment = 0;
uint64_t startVA = 0;
std::vector<InputChunk *> inputSegments;
// Sum of the size of the all the input segments
uint32_t size = 0;
// Segment header
std::string header;
};
} // namespace wasm
} // namespace lld
#endif // LLD_WASM_OUTPUT_SEGMENT_H