+/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
- This file is part of systemd.
-
Copyright 2010 Lennart Poettering
-
- systemd 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.
-
- systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <assert.h>
#include <inttypes.h>
#include <stdbool.h>
#include <sys/param.h>
#define _weakref_(x) __attribute__((weakref(#x)))
#define _alignas_(x) __attribute__((aligned(__alignof(x))))
#define _cleanup_(x) __attribute__((cleanup(x)))
+#if __GNUC__ >= 7
+#define _fallthrough_ __attribute__((fallthrough))
+#else
+#define _fallthrough_
+#endif
+/* Define C11 noreturn without <stdnoreturn.h> and even on older gcc
+ * compiler versions */
+#ifndef _noreturn_
+#if __STDC_VERSION__ >= 201112L
+#define _noreturn_ _Noreturn
+#else
+#define _noreturn_ __attribute__((noreturn))
+#endif
+#endif
+
+#if !defined(HAS_FEATURE_MEMORY_SANITIZER)
+# if defined(__has_feature)
+# if __has_feature(memory_sanitizer)
+# define HAS_FEATURE_MEMORY_SANITIZER 1
+# endif
+# endif
+# if !defined(HAS_FEATURE_MEMORY_SANITIZER)
+# define HAS_FEATURE_MEMORY_SANITIZER 0
+# endif
+#endif
/* Temporarily disable some warnings */
#define DISABLE_WARNING_DECLARATION_AFTER_STATEMENT \
return 1UL << (sizeof(u) * 8 - __builtin_clzl(u - 1UL));
}
+#ifndef __COVERITY__
+# define VOID_0 ((void)0)
+#else
+# define VOID_0 ((void*)0)
+#endif
+
#define ELEMENTSOF(x) \
__extension__ (__builtin_choose_expr( \
!__builtin_types_compatible_p(typeof(x), typeof(&*(x))), \
sizeof(x)/sizeof((x)[0]), \
- (void)0))
+ VOID_0))
+
+/*
+ * STRLEN - return the length of a string literal, minus the trailing NUL byte.
+ * Contrary to strlen(), this is a constant expression.
+ * @x: a string literal.
+ */
+#define STRLEN(x) (sizeof(""x"") - 1)
+
/*
* container_of - cast a member of a structure out to the containing structure
* @ptr: the pointer to the member.
__builtin_constant_p(_B) && \
__builtin_types_compatible_p(typeof(_A), typeof(_B)), \
((_A) > (_B)) ? (_A) : (_B), \
- (void)0))
+ VOID_0))
/* takes two types and returns the size of the larger one */
#define MAXSIZE(A, B) (sizeof(union _packed_ { typeof(A) a; typeof(B) b; }))
({ \
typeof(x) _x_ = (x); \
unsigned ans = 1; \
- while (_x_ /= 10) \
+ while ((_x_ /= 10) != 0) \
ans++; \
ans; \
})
#define SET_FLAG(v, flag, b) \
(v) = (b) ? ((v) | (flag)) : ((v) & ~(flag))
+#define FLAGS_SET(v, flags) \
+ (((v) & (flags)) == (flags))
#define CASE_F(X) case X:
#define CASE_F_1(CASE, X) CASE_F(X)
#endif
#endif
-/* Define C11 noreturn without <stdnoreturn.h> and even on older gcc
- * compiler versions */
-#ifndef noreturn
-#if __STDC_VERSION__ >= 201112L
-#define noreturn _Noreturn
-#else
-#define noreturn __attribute__((noreturn))
-#endif
-#endif
-
#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \
static inline void func##p(type *p) { \
if (*p) \
func(*p); \
- } \
- struct __useless_struct_to_allow_trailing_semicolon__
+ }
#include "log.h"