binutils-gdb/binutils/elfcomm.h
Nick Clifton 546cb2d85e Restore readelf's warnings that describe real problems with the file being examined. Fix bug displaying empty file name tables.
binutils* dwarf.c (do_checks): New global variable.
	(display_formatted_table): Warn about an unexpected number of
	columns in the table, if checks are enabled.  Do not complain
	about the lack of data following the number of entries in the
	table if the table is empty.
	(display_debug_lines_decoded): Only warn about an unexpected
	number of columns in a table if checks are enabled.
	* dwarf.h (do_checks): Add a prototype.
	* elfcomm.c (error): Remove weak attribute.
	(warn): Likewise.
	* readelf.c (do_checks): Delete.
	(warn): Delete.
	(process_section_headers): Only warn about empty sections if
	checks are enabled.

gas	* dwarf2dbg.c (out_dir_and_file_list): Add comments describing the
	construction of a DWARF-5 directory name table.
	* testsuite/gas/elf/pr25917.d: Update expected output.
2020-05-05 16:16:03 +01:00

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/* elfcomm.h -- include file of common code for ELF format file.
Copyright (C) 2010-2020 Free Software Foundation, Inc.
Originally developed by Eric Youngdale <eric@andante.jic.com>
Modifications by Nick Clifton <nickc@redhat.com>
This file is part of GNU Binutils.
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 3 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., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#ifndef _ELFCOMM_H
#define _ELFCOMM_H
#include "aout/ar.h"
extern void error (const char *, ...) ATTRIBUTE_PRINTF_1;
extern void warn (const char *, ...) ATTRIBUTE_PRINTF_1;
typedef unsigned HOST_WIDEST_INT elf_vma;
extern void (*byte_put) (unsigned char *, elf_vma, int);
extern void byte_put_little_endian (unsigned char *, elf_vma, int);
extern void byte_put_big_endian (unsigned char *, elf_vma, int);
extern elf_vma (*byte_get) (const unsigned char *, int);
extern elf_vma byte_get_signed (const unsigned char *, int);
extern elf_vma byte_get_little_endian (const unsigned char *, int);
extern elf_vma byte_get_big_endian (const unsigned char *, int);
extern void byte_get_64 (const unsigned char *, elf_vma *, elf_vma *);
#define BYTE_PUT(field, val) byte_put (field, val, sizeof (field))
#define BYTE_GET(field) byte_get (field, sizeof (field))
#define BYTE_GET_SIGNED(field) byte_get_signed (field, sizeof (field))
/* This is just a bit of syntatic sugar. */
#define streq(a,b) (strcmp ((a), (b)) == 0)
#define strneq(a,b,n) (strncmp ((a), (b), (n)) == 0)
#define const_strneq(a,b) (strncmp ((a), (b), sizeof (b) - 1) == 0)
/* Structure to hold information about an archive file. */
struct archive_info
{
char * file_name; /* Archive file name. */
FILE * file; /* Open file descriptor. */
elf_vma index_num; /* Number of symbols in table. */
elf_vma * index_array; /* The array of member offsets. */
char * sym_table; /* The symbol table. */
unsigned long sym_size; /* Size of the symbol table. */
char * longnames; /* The long file names table. */
unsigned long longnames_size; /* Size of the long file names table. */
unsigned long nested_member_origin; /* Origin in the nested archive of the current member. */
unsigned long next_arhdr_offset; /* Offset of the next archive header. */
int is_thin_archive; /* 1 if this is a thin archive. */
int uses_64bit_indices; /* 1 if the index table uses 64bit entries. */
struct ar_hdr arhdr; /* Current archive header. */
};
/* Return the path name for a proxy entry in a thin archive. */
extern char *adjust_relative_path (const char *, const char *, unsigned long);
/* Read the symbol table and long-name table from an archive. */
extern int setup_archive (struct archive_info *, const char *, FILE *,
off_t, int, int);
/* Open and setup a nested archive, if not already open. */
extern int setup_nested_archive (struct archive_info *, const char *);
/* Release the memory used for the archive information. */
extern void release_archive (struct archive_info *);
/* Get the name of an archive member from the current archive header. */
extern char *get_archive_member_name (struct archive_info *,
struct archive_info *);
/* Get the name of an archive member at a given offset within an
archive. */
extern char *get_archive_member_name_at (struct archive_info *,
unsigned long,
struct archive_info *);
/* Construct a string showing the name of the archive member, qualified
with the name of the containing archive file. */
extern char *make_qualified_name (struct archive_info *,
struct archive_info *,
const char *);
#endif /* _ELFCOMM_H */