diff options
Diffstat (limited to 'lib/birdlib.h')
| -rw-r--r-- | lib/birdlib.h | 42 |
1 files changed, 34 insertions, 8 deletions
diff --git a/lib/birdlib.h b/lib/birdlib.h index e03bd0b2..3f65b8c2 100644 --- a/lib/birdlib.h +++ b/lib/birdlib.h @@ -9,16 +9,39 @@ #ifndef _BIRD_BIRDLIB_H_ #define _BIRD_BIRDLIB_H_ +#include <stddef.h> + +#include "sysdep/config.h" #include "lib/alloca.h" /* Ugly structure offset handling macros */ -struct align_probe { char x; long int y; }; +#define SAME_TYPE(a, b) ({ int _ = ((a) != (b)); !_; }) +#define TYPE_CAST(from, to, what) ( SAME_TYPE(((from) NULL), (what)), ((to) (what))) +#ifdef offsetof +#define OFFSETOF offsetof +#else #define OFFSETOF(s, i) ((size_t) &((s *)0)->i) -#define SKIP_BACK(s, i, p) ((s *)((char *)p - OFFSETOF(s, i))) +#endif + +#define SKIP_BACK(s, i, p) ({ s *_ptr = ((s *)((char *)p - OFFSETOF(s, i))); SAME_TYPE(&_ptr->i, p); _ptr; }) #define BIRD_ALIGN(s, a) (((s)+a-1)&~(a-1)) -#define CPU_STRUCT_ALIGN (sizeof(struct align_probe)) +#define CPU_STRUCT_ALIGN (MAX_(_Alignof(void*), _Alignof(u64))) +#define BIRD_CPU_ALIGN(s) BIRD_ALIGN((s), CPU_STRUCT_ALIGN) + +/* Structure item alignment macros */ + +#define PADDING_NAME(id) _padding_##id +#define PADDING_(id, sz) u8 PADDING_NAME(id)[sz] + +#if CPU_POINTER_ALIGNMENT == 4 +#define PADDING(id, n32, n64) PADDING_(id, n32) +#elif CPU_POINTER_ALIGNMENT == 8 +#define PADDING(id, n32, n64) PADDING_(id, n64) +#else +#error "Strange CPU pointer alignment: " CPU_POINTER_ALIGNMENT +#endif /* Utility macros */ @@ -73,6 +96,7 @@ static inline int u64_cmp(u64 i1, u64 i2) /* Macros for gcc attributes */ #define NORET __attribute__((noreturn)) +#define USE_RESULT __atribute__((warn_unused_result)) #define UNUSED __attribute__((unused)) #define PACKED __attribute__((packed)) #define NONNULL(...) __attribute__((nonnull((__VA_ARGS__)))) @@ -80,10 +104,6 @@ static inline int u64_cmp(u64 i1, u64 i2) #define STATIC_ASSERT(EXP) _Static_assert(EXP, #EXP) #define STATIC_ASSERT_MSG(EXP,MSG) _Static_assert(EXP, MSG) -#ifndef HAVE_THREAD_LOCAL -#define _Thread_local -#endif - /* Microsecond time */ typedef s64 btime; @@ -95,6 +115,7 @@ typedef s64 btime; #define TO_S /1000000 #define TO_MS /1000 #define TO_US /1 +#define TO_NS * (btime) 1000 #ifndef PARSER #define S S_ @@ -166,8 +187,13 @@ void debug_safe(const char *msg); /* Printf to debug output, async-safe */ #if defined(LOCAL_DEBUG) || defined(GLOBAL_DEBUG) #define DBG(x, y...) debug(x, ##y) +#define DBGL(x, y...) debug(x "\n", ##y) +#elif defined(DEBUG_TO_LOG) +#define DBG(...) do { } while (0) +#define DBGL(...) log(L_DEBUG __VA_ARGS__) #else -#define DBG(x, y...) do { } while(0) +#define DBG(...) do { } while(0) +#define DBGL(...) do { } while (0) #endif #define ASSERT_DIE(x) do { if (!(x)) bug("Assertion '%s' failed at %s:%d", #x, __FILE__, __LINE__); } while(0) |