glibc/misc/err.h
Sergey Bugaev e6a252758c Mark various cold functions as __COLD
GCC docs explicitly list perror () as a good candidate for using
__attribute__ ((cold)). So apply __COLD to perror () and similar
functions.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-Id: <20230429131223.2507236-3-bugaevc@gmail.com>
2023-05-01 19:33:21 +02:00

63 lines
2.3 KiB
C

/* 4.4BSD utility functions for error messages.
Copyright (C) 1995-2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _ERR_H
#define _ERR_H 1
#include <features.h>
#define __need___va_list
#include <stdarg.h>
#ifndef __GNUC_VA_LIST
# define __gnuc_va_list void *
#endif
__BEGIN_DECLS
/* Print "program: ", FORMAT, ": ", the standard error string for errno,
and a newline, on stderr. */
extern void warn (const char *__format, ...)
__attribute__ ((__format__ (__printf__, 1, 2))) __COLD;
extern void vwarn (const char *__format, __gnuc_va_list)
__attribute__ ((__format__ (__printf__, 1, 0))) __COLD;
/* Likewise, but without ": " and the standard error string. */
extern void warnx (const char *__format, ...)
__attribute__ ((__format__ (__printf__, 1, 2)));
extern void vwarnx (const char *__format, __gnuc_va_list)
__attribute__ ((__format__ (__printf__, 1, 0)));
/* Likewise, and then exit with STATUS. */
extern void err (int __status, const char *__format, ...)
__attribute__ ((__noreturn__, __format__ (__printf__, 2, 3))) __COLD;
extern void verr (int __status, const char *__format, __gnuc_va_list)
__attribute__ ((__noreturn__, __format__ (__printf__, 2, 0))) __COLD;
extern void errx (int __status, const char *__format, ...)
__attribute__ ((__noreturn__, __format__ (__printf__, 2, 3))) __COLD;
extern void verrx (int __status, const char *, __gnuc_va_list)
__attribute__ ((__noreturn__, __format__ (__printf__, 2, 0))) __COLD;
#include <bits/floatn.h>
#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
# include <bits/err-ldbl.h>
#endif
__END_DECLS
#endif /* err.h */