#pragma once
#include <assert.h>
+#include <errno.h>
#include <inttypes.h>
#include <stdbool.h>
#include <sys/param.h>
#include <sys/sysmacros.h>
#include <sys/types.h>
-#define _printf_(a, b) __attribute__ ((format (printf, a, b)))
+#define _printf_(a, b) __attribute__((__format__(printf, a, b)))
#ifdef __clang__
# define _alloc_(...)
#else
-# define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__)))
+# define _alloc_(...) __attribute__((__alloc_size__(__VA_ARGS__)))
#endif
-#define _sentinel_ __attribute__ ((sentinel))
-#define _unused_ __attribute__ ((unused))
-#define _destructor_ __attribute__ ((destructor))
-#define _pure_ __attribute__ ((pure))
-#define _const_ __attribute__ ((const))
-#define _deprecated_ __attribute__ ((deprecated))
-#define _packed_ __attribute__ ((packed))
-#define _malloc_ __attribute__ ((malloc))
-#define _weak_ __attribute__ ((weak))
+#define _sentinel_ __attribute__((__sentinel__))
+#define _section_(x) __attribute__((__section__(x)))
+#define _used_ __attribute__((__used__))
+#define _unused_ __attribute__((__unused__))
+#define _destructor_ __attribute__((__destructor__))
+#define _pure_ __attribute__((__pure__))
+#define _const_ __attribute__((__const__))
+#define _deprecated_ __attribute__((__deprecated__))
+#define _packed_ __attribute__((__packed__))
+#define _malloc_ __attribute__((__malloc__))
+#define _weak_ __attribute__((__weak__))
#define _likely_(x) (__builtin_expect(!!(x), 1))
#define _unlikely_(x) (__builtin_expect(!!(x), 0))
-#define _public_ __attribute__ ((visibility("default")))
-#define _hidden_ __attribute__ ((visibility("hidden")))
-#define _weakref_(x) __attribute__((weakref(#x)))
-#define _alignas_(x) __attribute__((aligned(__alignof(x))))
-#define _cleanup_(x) __attribute__((cleanup(x)))
+#define _public_ __attribute__((__visibility__("default")))
+#define _hidden_ __attribute__((__visibility__("hidden")))
+#define _weakref_(x) __attribute__((__weakref__(#x)))
+#define _align_(x) __attribute__((__aligned__(x)))
+#define _alignas_(x) __attribute__((__aligned__(__alignof(x))))
+#define _alignptr_ __attribute__((__aligned__(sizeof(void*))))
+#define _cleanup_(x) __attribute__((__cleanup__(x)))
#if __GNUC__ >= 7
-#define _fallthrough_ __attribute__((fallthrough))
+#define _fallthrough_ __attribute__((__fallthrough__))
#else
#define _fallthrough_
#endif
#if __STDC_VERSION__ >= 201112L
#define _noreturn_ _Noreturn
#else
-#define _noreturn_ __attribute__((noreturn))
+#define _noreturn_ __attribute__((__noreturn__))
#endif
#endif
# endif
#endif
+#if !defined(HAS_FEATURE_ADDRESS_SANITIZER)
+# ifdef __SANITIZE_ADDRESS__
+# define HAS_FEATURE_ADDRESS_SANITIZER 1
+# elif defined(__has_feature)
+# if __has_feature(address_sanitizer)
+# define HAS_FEATURE_ADDRESS_SANITIZER 1
+# endif
+# endif
+# if !defined(HAS_FEATURE_ADDRESS_SANITIZER)
+# define HAS_FEATURE_ADDRESS_SANITIZER 0
+# endif
+#endif
+
+/* Note: on GCC "no_sanitize_address" is a function attribute only, on llvm it may also be applied to global
+ * variables. We define a specific macro which knows this. Note that on GCC we don't need this decorator so much, since
+ * our primary usecase for this attribute is registration structures placed in named ELF sections which shall not be
+ * padded, but GCC doesn't pad those anyway if AddressSanitizer is enabled. */
+#if HAS_FEATURE_ADDRESS_SANITIZER && defined(__clang__)
+#define _variable_no_sanitize_address_ __attribute__((__no_sanitize_address__))
+#else
+#define _variable_no_sanitize_address_
+#endif
+
/* Temporarily disable some warnings */
#define DISABLE_WARNING_FORMAT_NONLITERAL \
_Pragma("GCC diagnostic push"); \
_Pragma("GCC diagnostic push"); \
_Pragma("GCC diagnostic ignored \"-Wincompatible-pointer-types\"")
+#if HAVE_WSTRINGOP_TRUNCATION
+# define DISABLE_WARNING_STRINGOP_TRUNCATION \
+ _Pragma("GCC diagnostic push"); \
+ _Pragma("GCC diagnostic ignored \"-Wstringop-truncation\"")
+#else
+# define DISABLE_WARNING_STRINGOP_TRUNCATION \
+ _Pragma("GCC diagnostic push")
+#endif
+
#define REENABLE_WARNING \
_Pragma("GCC diagnostic pop")
* computation should be possible in the given type. Therefore, we use
* [x / y + !!(x % y)]. Note that on "Real CPUs" a division returns both the
* quotient and the remainder, so both should be equally fast. */
-#define DIV_ROUND_UP(_x, _y) \
+#define DIV_ROUND_UP(x, y) __DIV_ROUND_UP(UNIQ, (x), UNIQ, (y))
+#define __DIV_ROUND_UP(xq, x, yq, y) \
({ \
- const typeof(_x) __x = (_x); \
- const typeof(_y) __y = (_y); \
- (__x / __y + !!(__x % __y)); \
+ const typeof(x) UNIQ_T(X, xq) = (x); \
+ const typeof(y) UNIQ_T(Y, yq) = (y); \
+ (UNIQ_T(X, xq) / UNIQ_T(Y, yq) + !!(UNIQ_T(X, xq) % UNIQ_T(Y, yq))); \
})
#ifdef __COVERITY__
#define assert_message_se(expr, message) \
do { \
if (_unlikely_(!(expr))) \
- log_assert_failed(message, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
+ log_assert_failed(message, PROJECT_FILE, __LINE__, __PRETTY_FUNCTION__); \
} while (false)
#define assert_log(expr, message) ((_likely_(expr)) \
? (true) \
- : (log_assert_failed_return(message, __FILE__, __LINE__, __PRETTY_FUNCTION__), false))
+ : (log_assert_failed_return(message, PROJECT_FILE, __LINE__, __PRETTY_FUNCTION__), false))
#endif /* __COVERITY__ */
#endif
#define assert_not_reached(t) \
- do { \
- log_assert_failed_unreachable(t, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
- } while (false)
+ log_assert_failed_unreachable(t, PROJECT_FILE, __LINE__, __PRETTY_FUNCTION__)
#if defined(static_assert)
#define assert_cc(expr) \
- static_assert(expr, #expr);
+ static_assert(expr, #expr)
#else
#define assert_cc(expr) \
struct CONCATENATE(_assert_struct_, __COUNTER__) { \
char x[(expr) ? 0 : -1]; \
- };
+ }
#endif
#define assert_return(expr, r) \
} \
} while (false)
+#define return_with_errno(r, err) \
+ do { \
+ errno = abs(err); \
+ return r; \
+ } while (false)
+
#define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
#define INT_TO_PTR(u) ((void *) ((intptr_t) (u)))
#define PTR_TO_UINT(p) ((unsigned) ((uintptr_t) (p)))
#endif
#endif
+#define DEFINE_TRIVIAL_DESTRUCTOR(name, type, func) \
+ static inline void name(type *p) { \
+ func(p); \
+ }
+
#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \
static inline void func##p(type *p) { \
if (*p) \
projects / thirdparty / systemd.git / blobdiff