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authorvitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
committervitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
commit6ffe9e53658409f212834330e13564e4952558f6 (patch)
tree85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/include/llvm/DebugInfo/DWARF/DWARFDebugAddr.h
parent726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff)
downloadydb-6ffe9e53658409f212834330e13564e4952558f6.tar.gz
YQ Connector: support managed ClickHouse
Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.
Diffstat (limited to 'contrib/libs/llvm14/include/llvm/DebugInfo/DWARF/DWARFDebugAddr.h')
-rw-r--r--contrib/libs/llvm14/include/llvm/DebugInfo/DWARF/DWARFDebugAddr.h110
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diff --git a/contrib/libs/llvm14/include/llvm/DebugInfo/DWARF/DWARFDebugAddr.h b/contrib/libs/llvm14/include/llvm/DebugInfo/DWARF/DWARFDebugAddr.h
new file mode 100644
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--- /dev/null
+++ b/contrib/libs/llvm14/include/llvm/DebugInfo/DWARF/DWARFDebugAddr.h
@@ -0,0 +1,110 @@
+#pragma once
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+//===- DWARFDebugAddr.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 LLVM_DEBUGINFO_DWARF_DWARFDEBUGADDR_H
+#define LLVM_DEBUGINFO_DWARF_DWARFDEBUGADDR_H
+
+#include "llvm/BinaryFormat/Dwarf.h"
+#include "llvm/DebugInfo/DIContext.h"
+#include "llvm/DebugInfo/DWARF/DWARFDataExtractor.h"
+#include "llvm/Support/Errc.h"
+#include "llvm/Support/Error.h"
+#include <cstdint>
+#include <map>
+#include <vector>
+
+namespace llvm {
+
+class Error;
+class raw_ostream;
+
+/// A class representing an address table as specified in DWARF v5.
+/// The table consists of a header followed by an array of address values from
+/// .debug_addr section.
+class DWARFDebugAddrTable {
+ dwarf::DwarfFormat Format;
+ uint64_t Offset;
+ /// The total length of the entries for this table, not including the length
+ /// field itself.
+ uint64_t Length = 0;
+ /// The DWARF version number.
+ uint16_t Version;
+ /// The size in bytes of an address on the target architecture. For
+ /// segmented addressing, this is the size of the offset portion of the
+ /// address.
+ uint8_t AddrSize;
+ /// The size in bytes of a segment selector on the target architecture.
+ /// If the target system uses a flat address space, this value is 0.
+ uint8_t SegSize;
+ std::vector<uint64_t> Addrs;
+
+ /// Invalidate Length field to stop further processing.
+ void invalidateLength() { Length = 0; }
+
+ Error extractAddresses(const DWARFDataExtractor &Data, uint64_t *OffsetPtr,
+ uint64_t EndOffset);
+
+public:
+
+ /// Extract the entire table, including all addresses.
+ Error extract(const DWARFDataExtractor &Data, uint64_t *OffsetPtr,
+ uint16_t CUVersion, uint8_t CUAddrSize,
+ std::function<void(Error)> WarnCallback);
+
+ /// Extract a DWARFv5 address table.
+ Error extractV5(const DWARFDataExtractor &Data, uint64_t *OffsetPtr,
+ uint8_t CUAddrSize, std::function<void(Error)> WarnCallback);
+
+ /// Extract a pre-DWARFv5 address table. Such tables do not have a header
+ /// and consist only of a series of addresses.
+ /// See https://gcc.gnu.org/wiki/DebugFission for details.
+ Error extractPreStandard(const DWARFDataExtractor &Data, uint64_t *OffsetPtr,
+ uint16_t CUVersion, uint8_t CUAddrSize);
+
+ void dump(raw_ostream &OS, DIDumpOptions DumpOpts = {}) const;
+
+ /// Return the address based on a given index.
+ Expected<uint64_t> getAddrEntry(uint32_t Index) const;
+
+ /// Return the full length of this table, including the length field.
+ /// Return None if the length cannot be identified reliably.
+ Optional<uint64_t> getFullLength() const;
+
+ /// Return the DWARF format of this table.
+ dwarf::DwarfFormat getFormat() const { return Format; }
+
+ /// Return the length of this table.
+ uint64_t getLength() const { return Length; }
+
+ /// Return the version of this table.
+ uint16_t getVersion() const { return Version; }
+
+ /// Return the address size of this table.
+ uint8_t getAddressSize() const { return AddrSize; }
+
+ /// Return the segment selector size of this table.
+ uint8_t getSegmentSelectorSize() const { return SegSize; }
+
+ /// Return the parsed addresses of this table.
+ ArrayRef<uint64_t> getAddressEntries() const { return Addrs; }
+};
+
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_DWARF_DWARFDEBUGADDR_H
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif