/* Sysprof -- Sampling, systemwide CPU profiler
 * Copyright 2006, 2007, Soeren Sandmann
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include <glib.h>

#ifndef NT_GNU_BUILD_ID
#define NT_GNU_BUILD_ID 3
#endif

typedef struct ElfSym ElfSym;
typedef struct ElfParser ElfParser;

ElfParser    *elf_parser_new_from_data   (const guchar  *data,
                                          gsize          length);
ElfParser    *elf_parser_new_from_mmap   (GMappedFile   *mapped_file,
                                          GError       **err);
ElfParser    *elf_parser_new             (const char    *filename,
                                          GError       **err);
void          elf_parser_free            (ElfParser     *parser);
const char   *elf_parser_get_debug_link  (ElfParser     *parser,
                                          guint32       *crc32);
const gchar  *elf_parser_get_build_id    (ElfParser     *parser);
const guchar *elf_parser_get_eh_frame    (ElfParser     *parser);
const guchar *elf_parser_get_debug_frame (ElfParser     *parser);
gulong        elf_parser_get_text_offset (ElfParser     *parser);


/* Lookup a symbol in the file.
 *
 * The symbol returned is const, so don't free it. It is valid until
 * elf_parser_free() is called on the parser.
 *
 * The address should be given in "file coordinates". This means that
 * if the file is mapped at address m and offset o, then an address a
 * should be looked up as  "a - (m - o)".  (m - o) is where the start
 * of the file would have been mapped, so a - (m - o) is the position
 * in the file of a.
 */
const ElfSym *elf_parser_lookup_symbol         (ElfParser    *parser,
                                                gulong        address);
guint32       elf_parser_get_crc32             (ElfParser    *parser);
const char   *elf_parser_get_sym_name          (ElfParser    *parser,
                                                const ElfSym *sym);
gulong        elf_parser_get_sym_address       (ElfParser    *parser,
                                                const ElfSym *sym);
gboolean      elf_parser_owns_symbol           (ElfParser    *parser,
                                                const ElfSym *sym);
char         *elf_demangle                     (const char   *name);
void          elf_parser_get_sym_address_range (ElfParser    *parser,
                                                const ElfSym *sym,
                                                gulong       *begin,
                                                gulong       *end);