X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=share%2Fkernelcompat.h;h=c03b4086880c8ff2cd9a9f1dde973b4935c350a9;hb=769d015768372ce7f68ff12bbc55aa339c3a6bcd;hp=f141bc54e88555534cb2786665a51dbdd3191e97;hpb=6cb88bc04f67ebc3264d3832f4ce5cca2c642ab4;p=ust.git diff --git a/share/kernelcompat.h b/share/kernelcompat.h index f141bc5..c03b408 100644 --- a/share/kernelcompat.h +++ b/share/kernelcompat.h @@ -1,13 +1,17 @@ #ifndef KERNELCOMPAT_H #define KERNELCOMPAT_H +#include #include -#include "compiler.h" - #include #include +/* FIXME: libkcompat must not define arch-specific local ops, as ust *must* + * fallback to the normal atomic ops. Fix things so we don't add them and + * break things accidentally. + */ + #define container_of(ptr, type, member) ({ \ const typeof( ((type *)0)->member ) *__mptr = (ptr); \ (type *)( (char *)__mptr - offsetof(type,member) );}) @@ -41,14 +45,7 @@ static inline long IS_ERR(const void *ptr) } -/* FIXED SIZE INTEGERS */ - -//#include - -//typedef uint8_t u8; -//typedef uint16_t u16; -//typedef uint32_t u32; -//typedef uint64_t u64; +/* Min / Max */ #define min_t(type, x, y) ({ \ type __min1 = (x); \ @@ -91,93 +88,6 @@ static inline long IS_ERR(const void *ptr) #include #define printk(fmt, args...) printf(fmt, ## args) -/* MEMORY BARRIERS */ - -#define smp_mb__after_atomic_inc() do {} while(0) - -///* RCU */ -// -//#include "urcu.h" -//#define call_rcu_sched(a,b) b(a); synchronize_rcu() -//#define rcu_barrier_sched() do {} while(0) /* this nop is ok if call_rcu_sched does a synchronize_rcu() */ -//#define rcu_read_lock_sched_notrace() rcu_read_lock() -//#define rcu_read_unlock_sched_notrace() rcu_read_unlock() - -/* ATOMICITY */ - -#include - -static inline int atomic_dec_and_test(atomic_t *p) -{ - (p->counter)--; - return !p->counter; -} - -static inline void atomic_set(atomic_t *p, int v) -{ - p->counter=v; -} - -static inline void atomic_inc(atomic_t *p) -{ - p->counter++; -} - -static int atomic_read(atomic_t *p) -{ - return p->counter; -} - -#define atomic_long_t atomic_t -#define atomic_long_set atomic_set -#define atomic_long_read atomic_read - -//#define __xg(x) ((volatile long *)(x)) - -#define cmpxchg(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) - -//#define local_cmpxchg cmpxchg -#define local_cmpxchg(l, o, n) (cmpxchg(&((l)->a.counter), (o), (n))) - -#define atomic_long_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new))) - - -/* LOCAL OPS */ - -//typedef int local_t; -typedef struct -{ - atomic_long_t a; -} local_t; - - -static inline void local_inc(local_t *l) -{ - (l->a.counter)++; -} - -static inline void local_set(local_t *l, int v) -{ - l->a.counter = v; -} - -static inline void local_add(int v, local_t *l) -{ - l->a.counter += v; -} - -static int local_add_return(int v, local_t *l) -{ - return l->a.counter += v; -} - -static inline int local_read(local_t *l) -{ - return l->a.counter; -} - /* ATTRIBUTES */