binutils-gdb/gdb/dwarf2/abbrev-cache.h
Andrew Burgess 1d506c26d9 Update copyright year range in header of all files managed by GDB
This commit is the result of the following actions:

  - Running gdb/copyright.py to update all of the copyright headers to
    include 2024,

  - Manually updating a few files the copyright.py script told me to
    update, these files had copyright headers embedded within the
    file,

  - Regenerating gdbsupport/Makefile.in to refresh it's copyright
    date,

  - Using grep to find other files that still mentioned 2023.  If
    these files were updated last year from 2022 to 2023 then I've
    updated them this year to 2024.

I'm sure I've probably missed some dates.  Feel free to fix them up as
you spot them.
2024-01-12 15:49:57 +00:00

66 lines
2.0 KiB
C++

/* DWARF abbrev table cache
Copyright (C) 2022-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef GDB_DWARF2_ABBREV_CACHE_H
#define GDB_DWARF2_ABBREV_CACHE_H
#include "dwarf2/abbrev.h"
/* An abbrev cache holds abbrev tables for easier reuse. */
class abbrev_cache
{
public:
abbrev_cache ();
DISABLE_COPY_AND_ASSIGN (abbrev_cache);
/* Find an abbrev table coming from the abbrev section SECTION at
offset OFFSET. Return the table, or nullptr if it has not yet
been registered. */
abbrev_table *find (struct dwarf2_section_info *section, sect_offset offset)
{
search_key key = { section, offset };
return (abbrev_table *) htab_find_with_hash (m_tables.get (), &key,
to_underlying (offset));
}
/* Add TABLE to this cache. Ownership of TABLE is transferred to
the cache. Note that a table at a given section+offset may only
be registered once -- a violation of this will cause an assert.
To avoid this, call the 'find' method first, to see if the table
has already been read. */
void add (abbrev_table_up table);
private:
static hashval_t hash_table (const void *item);
static int eq_table (const void *lhs, const void *rhs);
struct search_key
{
struct dwarf2_section_info *section;
sect_offset offset;
};
/* Hash table of abbrev tables. */
htab_up m_tables;
};
#endif /* GDB_DWARF2_ABBREV_CACHE_H */