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/*
* This file contains error printing functions.
* These functions can be used by various binaries included in the strace
* package. Variable 'program_invocation_name' and function 'die()'
* have to be defined globally.
*
* Copyright (c) 2001-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef STRACE_ERROR_PRINTS_H
# define STRACE_ERROR_PRINTS_H
# include <stdbool.h>
# include "gcc_compat.h"
extern bool debug_flag;
void die(void) ATTRIBUTE_NORETURN;
void error_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
void perror_msg(const char *fmt, ...) ATTRIBUTE_FORMAT((printf, 1, 2));
void perror_msg_and_die(const char *fmt, ...)
ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
void error_msg_and_help(const char *fmt, ...)
ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
void error_msg_and_die(const char *fmt, ...)
ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
/* Wrappers for if (debug_flag) error_msg(...) */
# define debug_msg(...) \
do { \
if (debug_flag) \
error_msg(__VA_ARGS__); \
} while (0)
# define debug_perror_msg(...) \
do { \
if (debug_flag) \
perror_msg(__VA_ARGS__); \
} while (0)
/* Simple wrappers for providing function name in error messages */
# define error_func_msg(fmt_, ...) \
error_msg("%s: " fmt_, __func__, ##__VA_ARGS__)
# define perror_func_msg(fmt_, ...) \
perror_msg("%s: " fmt_, __func__, ##__VA_ARGS__)
# define debug_func_msg(fmt_, ...) \
debug_msg("%s: " fmt_, __func__, ##__VA_ARGS__)
# define debug_func_perror_msg(fmt_, ...) \
debug_perror_msg("%s: " fmt_, __func__, ##__VA_ARGS__)
# define error_func_msg_and_die(fmt_, ...) \
error_msg_and_die("%s: " fmt_, __func__, ##__VA_ARGS__)
# define perror_func_msg_and_die(fmt_, ...) \
perror_msg_and_die("%s: " fmt_, __func__, ##__VA_ARGS__)
#endif /* !STRACE_ERROR_PRINTS_H */
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