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dwz.h
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1/* DWARF DWZ handling for GDB.
2
3 Copyright (C) 2003-2023 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20#ifndef GDB_DWARF2_DWZ_H
21#define GDB_DWARF2_DWZ_H
22
23#include "gdb_bfd.h"
24#include "dwarf2/index-cache.h"
25#include "dwarf2/section.h"
26
27struct dwarf2_per_bfd;
28
29/* This represents a '.dwz' file. */
30
32{
34 : dwz_bfd (std::move (bfd))
35 {
36 }
37
38 const char *filename () const
39 {
40 return bfd_get_filename (this->dwz_bfd.get ());
41 }
42
43 /* A dwz file can only contain a few sections. */
52
53 /* The dwz's BFD. */
55
56 /* If we loaded the index from an external file, this contains the
57 resources associated to the open file, memory mapping, etc. */
58 std::unique_ptr<index_cache_resource> index_cache_res;
59
60 /* Read a string at offset STR_OFFSET in the .debug_str section from
61 this dwz file. Throw an error if the offset is too large. If
62 the string consists of a single NUL byte, return NULL; otherwise
63 return a pointer to the string. */
64
65 const char *read_string (struct objfile *objfile, LONGEST str_offset);
66};
67
68/* Open the separate '.dwz' debug file, if needed. If there is no
69 .gnu_debugaltlink section in the file, then the result depends on
70 REQUIRE: if REQUIRE is true, then error; if REQUIRE is false,
71 return NULL. Always error if there is such a section but the file
72 cannot be found. */
73
75 bool require = false);
76
77#endif /* GDB_DWARF2_DWZ_H */
dwz_file * dwarf2_get_dwz_file(dwarf2_per_bfd *per_bfd, bool require=false)
Definition dwz.c:193
gdb::ref_ptr< struct bfd, gdb_bfd_ref_policy > gdb_bfd_ref_ptr
Definition gdb_bfd.h:79
Definition aarch64.h:67
Definition dwz.h:32
const char * read_string(struct objfile *objfile, LONGEST str_offset)
Definition dwz.c:34
const char * filename() const
Definition dwz.h:38
dwz_file(gdb_bfd_ref_ptr &&bfd)
Definition dwz.h:33
gdb_bfd_ref_ptr dwz_bfd
Definition dwz.h:54
std::unique_ptr< index_cache_resource > index_cache_res
Definition dwz.h:58