1/* DWARF DWZ handling for GDB. 2 3 Copyright (C) 2003-2020 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 27/* This represents a '.dwz' file. */ 28 29struct dwz_file 30{ 31 dwz_file (gdb_bfd_ref_ptr &&bfd) 32 : dwz_bfd (std::move (bfd)) 33 { 34 } 35 36 const char *filename () const 37 { 38 return bfd_get_filename (this->dwz_bfd.get ()); 39 } 40 41 /* A dwz file can only contain a few sections. */ 42 struct dwarf2_section_info abbrev {}; 43 struct dwarf2_section_info info {}; 44 struct dwarf2_section_info str {}; 45 struct dwarf2_section_info line {}; 46 struct dwarf2_section_info macro {}; 47 struct dwarf2_section_info gdb_index {}; 48 struct dwarf2_section_info debug_names {}; 49 50 /* The dwz's BFD. */ 51 gdb_bfd_ref_ptr dwz_bfd; 52 53 /* If we loaded the index from an external file, this contains the 54 resources associated to the open file, memory mapping, etc. */ 55 std::unique_ptr<index_cache_resource> index_cache_res; 56 57 /* Read a string at offset STR_OFFSET in the .debug_str section from 58 this dwz file. Throw an error if the offset is too large. If 59 the string consists of a single NUL byte, return NULL; otherwise 60 return a pointer to the string. */ 61 62 const char *read_string (struct objfile *objfile, LONGEST str_offset); 63}; 64 65#endif /* GDB_DWARF2_DWZ_H */ 66