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9938d15a01
This moves dwarf2_get_dwz_file and some helper code to dwarf2/dwz.h. The main benefit of this is just shrinking dwarf2/read.c a little bit. gdb/ChangeLog 2021-03-06 Tom Tromey <tom@tromey.com> * dwarf2/sect-names.h (dwarf2_elf_names): Declare. * dwarf2/read.h (dwarf2_get_dwz_file): Move to dwz.h. * dwarf2/read.c (dwarf2_elf_names): No longer static. (locate_dwz_sections, dwz_search_other_debugdirs) (dwarf2_get_dwz_file): Move to dwz.c. * dwarf2/dwz.h (dwarf2_get_dwz_file): Move declaration from read.h. * dwarf2/dwz.c (locate_dwz_sections, dwz_search_other_debugdirs) (dwarf2_get_dwz_file): Move from read.c.
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
/* DWARF DWZ handling for GDB.
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Copyright (C) 2003-2021 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_DWZ_H
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#define GDB_DWARF2_DWZ_H
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#include "gdb_bfd.h"
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#include "dwarf2/index-cache.h"
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#include "dwarf2/section.h"
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struct dwarf2_per_bfd;
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/* This represents a '.dwz' file. */
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struct dwz_file
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{
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dwz_file (gdb_bfd_ref_ptr &&bfd)
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: dwz_bfd (std::move (bfd))
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{
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}
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const char *filename () const
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{
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return bfd_get_filename (this->dwz_bfd.get ());
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}
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/* A dwz file can only contain a few sections. */
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struct dwarf2_section_info abbrev {};
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struct dwarf2_section_info info {};
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struct dwarf2_section_info str {};
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struct dwarf2_section_info line {};
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struct dwarf2_section_info macro {};
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struct dwarf2_section_info gdb_index {};
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struct dwarf2_section_info debug_names {};
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/* The dwz's BFD. */
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gdb_bfd_ref_ptr dwz_bfd;
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/* If we loaded the index from an external file, this contains the
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resources associated to the open file, memory mapping, etc. */
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std::unique_ptr<index_cache_resource> index_cache_res;
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/* Read a string at offset STR_OFFSET in the .debug_str section from
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this dwz file. Throw an error if the offset is too large. If
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the string consists of a single NUL byte, return NULL; otherwise
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return a pointer to the string. */
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const char *read_string (struct objfile *objfile, LONGEST str_offset);
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};
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/* Open the separate '.dwz' debug file, if needed. If there is no
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.gnu_debugaltlink section in the file, then the result depends on
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REQUIRE: if REQUIRE is true, then error; if REQUIRE is false,
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return NULL. Always error if there is such a section but the file
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cannot be found. */
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extern dwz_file *dwarf2_get_dwz_file (dwarf2_per_bfd *per_bfd,
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bool require = false);
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#endif /* GDB_DWARF2_DWZ_H */
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