mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-09 04:21:49 +08:00
fc5e0925d4
A sufficiently mad compiler optimiser can take undefined behaviour according to the C standard as an opportunity to remove code. Since "data + size" might be seen to be past the end of an array, calculating such an expression is UB. _mul_overflow is infrastructure for later patches. * bucomm.h (_mul_overflow): Define. * dwarf.c (get_encoded_value): Avoid pointer UB.
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/* bucomm.h -- binutils common include file.
|
||
Copyright (C) 1991-2021 Free Software Foundation, Inc.
|
||
|
||
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 _BUCOMM_H
|
||
#define _BUCOMM_H
|
||
|
||
/* In bucomm.c. */
|
||
|
||
/* Return the filename in a static buffer. */
|
||
const char *bfd_get_archive_filename (const bfd *);
|
||
|
||
void bfd_nonfatal (const char *);
|
||
|
||
void bfd_nonfatal_message (const char *, const bfd *, const asection *,
|
||
const char *, ...);
|
||
|
||
void bfd_fatal (const char *) ATTRIBUTE_NORETURN;
|
||
|
||
void report (const char *, va_list) ATTRIBUTE_PRINTF(1,0);
|
||
|
||
void fatal (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
|
||
|
||
void non_fatal (const char *, ...) ATTRIBUTE_PRINTF_1;
|
||
|
||
void set_default_bfd_target (void);
|
||
|
||
void list_matching_formats (char **);
|
||
|
||
void list_supported_targets (const char *, FILE *);
|
||
|
||
void list_supported_architectures (const char *, FILE *);
|
||
|
||
int display_info (void);
|
||
|
||
void print_arelt_descr (FILE *, bfd *, bool, bool);
|
||
|
||
char *make_tempname (const char *, int *);
|
||
char *make_tempdir (const char *);
|
||
|
||
bfd_vma parse_vma (const char *, const char *);
|
||
|
||
off_t get_file_size (const char *);
|
||
|
||
bool is_valid_archive_path (char const *);
|
||
|
||
extern char *program_name;
|
||
|
||
/* In filemode.c. */
|
||
void mode_string (unsigned long, char *);
|
||
|
||
/* In version.c. */
|
||
extern void print_version (const char *);
|
||
|
||
/* In rename.c. */
|
||
extern void set_times (const char *, const struct stat *);
|
||
|
||
extern int smart_rename (const char *, const char *, int,
|
||
struct stat *, bool);
|
||
|
||
|
||
/* In libiberty. */
|
||
void *xmalloc (size_t);
|
||
|
||
void *xrealloc (void *, size_t);
|
||
|
||
#if __GNUC__ >= 7
|
||
#define _mul_overflow(a, b, res) __builtin_mul_overflow (a, b, res)
|
||
#else
|
||
/* Assumes unsigned values. Careful! Args evaluated multiple times. */
|
||
#define _mul_overflow(a, b, res) \
|
||
((*res) = (a), (*res) *= (b), (b) != 0 && (*res) / (b) != (a))
|
||
#endif
|
||
|
||
#endif /* _BUCOMM_H */
|