39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
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//===- DWARFRelocMap.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 LLVM_DEBUGINFO_DWARF_DWARFRELOCMAP_H
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#define LLVM_DEBUGINFO_DWARF_DWARFRELOCMAP_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Object/RelocationResolver.h"
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#include <cstdint>
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namespace llvm {
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/// RelocAddrEntry contains relocated value and section index.
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/// Section index is -1LL if relocation points to absolute symbol.
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struct RelocAddrEntry {
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uint64_t SectionIndex;
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object::RelocationRef Reloc;
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uint64_t SymbolValue;
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Optional<object::RelocationRef> Reloc2;
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uint64_t SymbolValue2;
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object::RelocationResolver Resolver;
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};
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/// In place of applying the relocations to the data we've read from disk we use
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/// a separate mapping table to the side and checking that at locations in the
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/// dwarf where we expect relocated values. This adds a bit of complexity to the
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/// dwarf parsing/extraction at the benefit of not allocating memory for the
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/// entire size of the debug info sections.
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using RelocAddrMap = DenseMap<uint64_t, RelocAddrEntry>;
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_DWARF_DWARFRELOCMAP_H
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