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08b8a139c9
This rewrites registry.h, removing all the macros and replacing it with relatively ordinary template classes. The result is less code than the previous setup. It replaces large macros with a relatively straightforward C++ class, and now manages its own cleanup. The existing type-safe "key" class is replaced with the equivalent template class. This approach ended up requiring relatively few changes to the users of the registry code in gdb -- code using the key system just required a small change to the key's declaration. All existing users of the old C-like API are now converted to use the type-safe API. This mostly involved changing explicit deletion functions to be an operator() in a deleter class. The old "save/free" two-phase process is removed, and replaced with a single "free" phase. No existing code used both phases. The old "free" callbacks took a parameter for the enclosing container object. However, this wasn't truly needed and is removed here as well.
79 lines
3.3 KiB
C
79 lines
3.3 KiB
C
/* Definitions for symbol-reading containing "stabs", for GDB.
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Copyright (C) 1992-2022 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by John Gilmore.
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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_STABS_H
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#define GDB_STABS_H
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/* This file exists to hold the common definitions required of most of
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the symbol-readers that end up using stabs. The common use of
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these `symbol-type-specific' customizations of the generic data
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structures makes the stabs-oriented symbol readers able to call
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each others' functions as required. */
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/* Information is passed among various dbxread routines for accessing
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symbol files. A pointer to this structure is kept in the objfile,
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using the dbx_objfile_data_key. */
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struct dbx_symfile_info
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{
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~dbx_symfile_info ();
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CORE_ADDR text_addr = 0; /* Start of text section */
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int text_size = 0; /* Size of text section */
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int symcount = 0; /* How many symbols are there in the file */
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char *stringtab = nullptr; /* The actual string table */
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int stringtab_size = 0; /* Its size */
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file_ptr symtab_offset = 0; /* Offset in file to symbol table */
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int symbol_size = 0; /* Bytes in a single symbol */
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/* See stabsread.h for the use of the following. */
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struct header_file *header_files = nullptr;
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int n_header_files = 0;
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int n_allocated_header_files = 0;
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/* Pointers to BFD sections. These are used to speed up the building of
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minimal symbols. */
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asection *text_section = nullptr;
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asection *data_section = nullptr;
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asection *bss_section = nullptr;
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/* Pointer to the separate ".stab" section, if there is one. */
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asection *stab_section = nullptr;
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};
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/* The tag used to find the DBX info attached to an objfile. This is
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global because it is referenced by several modules. */
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extern const registry<objfile>::key<dbx_symfile_info> dbx_objfile_data_key;
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#define DBX_SYMFILE_INFO(o) (dbx_objfile_data_key.get (o))
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#define DBX_TEXT_ADDR(o) (DBX_SYMFILE_INFO(o)->text_addr)
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#define DBX_TEXT_SIZE(o) (DBX_SYMFILE_INFO(o)->text_size)
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#define DBX_SYMCOUNT(o) (DBX_SYMFILE_INFO(o)->symcount)
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#define DBX_STRINGTAB(o) (DBX_SYMFILE_INFO(o)->stringtab)
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#define DBX_STRINGTAB_SIZE(o) (DBX_SYMFILE_INFO(o)->stringtab_size)
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#define DBX_SYMTAB_OFFSET(o) (DBX_SYMFILE_INFO(o)->symtab_offset)
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#define DBX_SYMBOL_SIZE(o) (DBX_SYMFILE_INFO(o)->symbol_size)
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#define DBX_TEXT_SECTION(o) (DBX_SYMFILE_INFO(o)->text_section)
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#define DBX_DATA_SECTION(o) (DBX_SYMFILE_INFO(o)->data_section)
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#define DBX_BSS_SECTION(o) (DBX_SYMFILE_INFO(o)->bss_section)
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#define DBX_STAB_SECTION(o) (DBX_SYMFILE_INFO(o)->stab_section)
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#endif /* GDB_STABS_H */
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