derek.holloway
7502bf64a4
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63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/* Things needed for both reading and writing DWARF indices.
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Copyright (C) 1994-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDB_DWARF2_INDEX_COMMON_H
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#define GDB_DWARF2_INDEX_COMMON_H
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#include "extract-store-integer.h"
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#include "hashtab.h"
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/* The suffix for an index file. */
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#define INDEX4_SUFFIX ".gdb-index"
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#define INDEX5_SUFFIX ".debug_names"
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#define DEBUG_STR_SUFFIX ".debug_str"
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/* All offsets in the index are of this type. It must be
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architecture-independent. */
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typedef uint32_t offset_type;
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/* Unpack a 32-bit little-endian value. */
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static inline offset_type
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gdb_index_unpack (const gdb_byte *value)
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{
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return (offset_type) extract_unsigned_integer (value, sizeof (offset_type),
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BFD_ENDIAN_LITTLE);
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}
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/* The hash function for strings in the mapped index. This is the same as
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SYMBOL_HASH_NEXT, but we keep a separate copy to maintain control over the
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implementation. This is necessary because the hash function is tied to the
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format of the mapped index file. The hash values do not have to match with
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SYMBOL_HASH_NEXT.
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Use INT_MAX for INDEX_VERSION if you generate the current index format. */
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hashval_t mapped_index_string_hash (int index_version, const void *p);
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/* Symbol name hashing function as specified by DWARF-5. */
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uint32_t dwarf5_djb_hash (const char *str_);
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/* Symbol name hashing function as specified by DWARF-5. */
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uint32_t dwarf5_djb_hash (std::string_view str_);
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#endif /* GDB_DWARF2_INDEX_COMMON_H */
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