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