diff options
Diffstat (limited to 'erts/include/internal/gcc/ethr_atomic.h')
| -rw-r--r-- | erts/include/internal/gcc/ethr_atomic.h | 477 |
1 files changed, 417 insertions, 60 deletions
diff --git a/erts/include/internal/gcc/ethr_atomic.h b/erts/include/internal/gcc/ethr_atomic.h index f598f8537b..62eed78f76 100644 --- a/erts/include/internal/gcc/ethr_atomic.h +++ b/erts/include/internal/gcc/ethr_atomic.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2010-2011. All Rights Reserved. + * Copyright Ericsson AB 2010-2015. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -18,78 +18,81 @@ */ /* - * Description: Native atomics ethread support using gcc's builtins + * Description: Native atomics ethread support using gcc's __atomic + * and __sync builtins * Author: Rickard Green + * + * Note: The C11 memory model implemented by gcc's __atomic + * builtins does not match the ethread API very well. + * + * Due to this we cannot use the __ATOMIC_SEQ_CST + * memory model. For more information see the comment + * in the begining of ethr_membar.h in this directory. */ #undef ETHR_INCLUDE_ATOMIC_IMPL__ -#if !defined(ETHR_GCC_ATOMIC32_H__) && defined(ETHR_ATOMIC_WANT_32BIT_IMPL__) -#define ETHR_GCC_ATOMIC32_H__ -#if defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP32) -# define ETHR_INCLUDE_ATOMIC_IMPL__ 4 -#endif +#if !defined(ETHR_GCC_ATOMIC_ATOMIC32_H__) \ + && defined(ETHR_ATOMIC_WANT_32BIT_IMPL__) \ + && ((ETHR_HAVE___sync_val_compare_and_swap & 4) \ + || (ETHR_HAVE___atomic_compare_exchange_n & 4)) + +#define ETHR_GCC_ATOMIC_ATOMIC32_H__ +#define ETHR_INCLUDE_ATOMIC_IMPL__ 4 #undef ETHR_ATOMIC_WANT_32BIT_IMPL__ -#elif !defined(ETHR_GCC_ATOMIC64_H__) && defined(ETHR_ATOMIC_WANT_64BIT_IMPL__) -#define ETHR_GCC_ATOMIC64_H__ -#if defined(ETHR_HAVE___SYNC_VAL_COMPARE_AND_SWAP64) -# define ETHR_INCLUDE_ATOMIC_IMPL__ 8 -#endif -#undef ETHR_ATOMIC_WANT_64BIT_IMPL__ -#endif -#ifdef ETHR_INCLUDE_ATOMIC_IMPL__ +#elif !defined(ETHR_GCC_ATOMIC64_H__) \ + && defined(ETHR_ATOMIC_WANT_64BIT_IMPL__) \ + && ((ETHR_HAVE___sync_val_compare_and_swap & 8) \ + || (ETHR_HAVE___atomic_compare_exchange_n & 8)) -#ifndef ETHR_GCC_ATOMIC_COMMON__ -#define ETHR_GCC_ATOMIC_COMMON__ +#define ETHR_GCC_ATOMIC64_H__ +#define ETHR_INCLUDE_ATOMIC_IMPL__ 8 +#undef ETHR_ATOMIC_WANT_64BIT_IMPL__ -#define ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ 0 -#if defined(__i386__) || defined(__x86_64__) || defined(__sparc__) \ - || defined(__powerpc__) || defined(__ppc__) || defined(__mips__) -# undef ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ -# define ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ 1 #endif -#endif /* ETHR_GCC_ATOMIC_COMMON__ */ +#ifdef ETHR_INCLUDE_ATOMIC_IMPL__ #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 #define ETHR_HAVE_NATIVE_ATOMIC32 1 -#define ETHR_NATIVE_ATOMIC32_IMPL "gcc" #define ETHR_NATMC_FUNC__(X) ethr_native_atomic32_ ## X #define ETHR_ATMC_T__ ethr_native_atomic32_t #define ETHR_AINT_T__ ethr_sint32_t -#if defined(ETHR_HAVE___SYNC_ADD_AND_FETCH32) -# define ETHR_HAVE___SYNC_ADD_AND_FETCH -#endif -#if defined(ETHR_HAVE___SYNC_FETCH_AND_AND32) -# define ETHR_HAVE___SYNC_FETCH_AND_AND -#endif -#if defined(ETHR_HAVE___SYNC_FETCH_AND_OR32) -# define ETHR_HAVE___SYNC_FETCH_AND_OR +#if ((ETHR_HAVE___sync_val_compare_and_swap & 4) \ + && (ETHR_HAVE___atomic_compare_exchange_n & 4)) +# define ETHR_NATIVE_ATOMIC32_IMPL "gcc_atomic_and_sync_builtins" +#elif (ETHR_HAVE___atomic_compare_exchange_n & 4) +# define ETHR_NATIVE_ATOMIC32_IMPL "gcc_atomic_builtins" +#elif (ETHR_HAVE___sync_val_compare_and_swap & 4) +# define ETHR_NATIVE_ATOMIC32_IMPL "gcc_sync_builtins" +#else +# error "!?" #endif #elif ETHR_INCLUDE_ATOMIC_IMPL__ == 8 #define ETHR_HAVE_NATIVE_ATOMIC64 1 -#define ETHR_NATIVE_ATOMIC64_IMPL "gcc" #define ETHR_NATMC_FUNC__(X) ethr_native_atomic64_ ## X #define ETHR_ATMC_T__ ethr_native_atomic64_t #define ETHR_AINT_T__ ethr_sint64_t -#if defined(ETHR_HAVE___SYNC_ADD_AND_FETCH64) -# define ETHR_HAVE___SYNC_ADD_AND_FETCH -#endif -#if defined(ETHR_HAVE___SYNC_FETCH_AND_AND64) -# define ETHR_HAVE___SYNC_FETCH_AND_AND -#endif -#if defined(ETHR_HAVE___SYNC_FETCH_AND_OR64) -# define ETHR_HAVE___SYNC_FETCH_AND_OR +#if ((ETHR_HAVE___sync_val_compare_and_swap & 8) \ + && (ETHR_HAVE___atomic_compare_exchange_n & 8)) +# define ETHR_NATIVE_ATOMIC64_IMPL "gcc_atomic_and_sync_builtins" +#elif (ETHR_HAVE___atomic_compare_exchange_n & 8) +# define ETHR_NATIVE_ATOMIC64_IMPL "gcc_atomic_builtins" +#elif (ETHR_HAVE___sync_val_compare_and_swap & 8) +# define ETHR_NATIVE_ATOMIC64_IMPL "gcc_sync_builtins" +#else +# error "!?" #endif #else #error "Unsupported integer size" #endif +#undef ETHR_NATIVE_ATOMIC_IMPL__ + typedef struct { - volatile ETHR_AINT_T__ counter; + volatile ETHR_AINT_T__ value; } ETHR_ATMC_T__; - #if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_ATOMIC_IMPL__) #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 @@ -98,13 +101,19 @@ typedef struct { # define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_ADDR 1 #endif + static ETHR_INLINE ETHR_AINT_T__ * ETHR_NATMC_FUNC__(addr)(ETHR_ATMC_T__ *var) { - return (ETHR_AINT_T__ *) &var->counter; + return (ETHR_AINT_T__ *) &var->value; } -#if ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ +/* + * set() + */ +#if (ETHR_HAVE___atomic_store_n & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELAXED_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 # define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_SET 1 @@ -115,12 +124,109 @@ ETHR_NATMC_FUNC__(addr)(ETHR_ATMC_T__ *var) static ETHR_INLINE void ETHR_NATMC_FUNC__(set)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value) { - var->counter = value; + __atomic_store_n(&var->value, value, __ATOMIC_RELAXED); } -#endif /* ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ */ +#endif /* ETHR_GCC_RELAXED_VERSIONS__ */ -#if ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ +#if (ETHR_GCC_RELB_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_SET_RELB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_SET_RELB 1 +#endif + +static ETHR_INLINE void +ETHR_NATMC_FUNC__(set_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value) +{ + __atomic_store_n(&var->value, value, __ATOMIC_RELEASE); +} + +#endif /* ETHR_GCC_RELB_VERSIONS__ */ + +#elif (ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELAXED_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_SET 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_SET 1 +#endif + +static ETHR_INLINE void +ETHR_NATMC_FUNC__(set)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value) +{ + var->value = value; +} + +#endif /* ETHR_GCC_RELAXED_VERSIONS__ */ + +#if (ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELB_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_SET_RELB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_SET_RELB 1 +#endif + +static ETHR_INLINE void +ETHR_NATMC_FUNC__(set_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value) +{ + var->value = value; +} + +#endif /* ETHR_GCC_RELB_VERSIONS__ */ + +#endif /* ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE_RELB__ */ + +#endif /* ETHR_GCC_VOLATILE_STORE_IS_ATOMIC_STORE__ */ + +/* + * read() + */ + +#if (ETHR_HAVE___atomic_load_n & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELAXED_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_READ 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(read)(ETHR_ATMC_T__ *var) +{ + return __atomic_load_n(&var->value, __ATOMIC_RELAXED); +} + +#endif /* ETHR_GCC_RELAXED_VERSIONS__ */ + +#if ((ETHR_GCC_ACQB_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) \ + & ~ETHR___atomic_load_ACQUIRE_barrier_bug) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ_ACQB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_READ_ACQB 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(read_acqb)(ETHR_ATMC_T__ *var) +{ + return __atomic_load_n(&var->value, __ATOMIC_ACQUIRE); +} + +#endif /* ETHR_GCC_ACQB_VERSIONS__ */ + +#elif (ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELAXED_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 # define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ 1 @@ -131,12 +237,90 @@ ETHR_NATMC_FUNC__(set)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ value) static ETHR_INLINE ETHR_AINT_T__ ETHR_NATMC_FUNC__(read)(ETHR_ATMC_T__ *var) { - return var->counter; + return var->value; +} + +#endif /* ETHR_GCC_RELAXED_VERSIONS__ */ + +#if (ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_ACQB_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ_ACQB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_READ_ACQB 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(read_acqb)(ETHR_ATMC_T__ *var) +{ + return var->value; +} + +#endif /* ETHR_GCC_ACQB_VERSIONS__ */ + +#endif /* ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD_ACQB__ */ + +#endif /* ETHR_GCC_VOLATILE_LOAD_IS_ATOMIC_LOAD__ */ + +/* + * add_return() + */ +#if (ETHR_HAVE___atomic_add_fetch & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_ADD_RETURN 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(add_return)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr) +{ + return __atomic_add_fetch(&var->value, incr, __ATOMIC_RELAXED); } -#endif /* ETHR_READ_AND_SET_WITHOUT_SYNC_OP__ */ +#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */ -#if defined(ETHR_HAVE___SYNC_ADD_AND_FETCH) +#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN_ACQB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_ADD_RETURN_ACQB 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(add_return_acqb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr) +{ + return __atomic_add_fetch(&var->value, incr, __ATOMIC_ACQUIRE); +} + +#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */ + +#if (ETHR_GCC_RELB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN_RELB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_ADD_RETURN_RELB 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(add_return_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr) +{ + return __atomic_add_fetch(&var->value, incr, __ATOMIC_RELEASE); +} + +#endif /* ETHR_GCC_RELB_MOD_VERSIONS__ */ + +#endif /* ETHR_HAVE___atomic_add_fetch */ + +#if ((ETHR_HAVE___sync_add_and_fetch & ETHR_INCLUDE_ATOMIC_IMPL__) \ + & ETHR_GCC_MB_MOD_VERSIONS__) #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 # define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN_MB 1 @@ -147,12 +331,68 @@ ETHR_NATMC_FUNC__(read)(ETHR_ATMC_T__ *var) static ETHR_INLINE ETHR_AINT_T__ ETHR_NATMC_FUNC__(add_return_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr) { - return __sync_add_and_fetch(&var->counter, incr); + return __sync_add_and_fetch(&var->value, incr); +} + +#endif /* ETHR_HAVE___sync_add_and_fetch */ + +/* + * and_retold() + */ +#if (ETHR_HAVE___atomic_fetch_and & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_AND_RETOLD 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(and_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) +{ + return __atomic_fetch_and(&var->value, mask, __ATOMIC_RELAXED); +} + +#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */ + +#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD_ACQB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_AND_RETOLD_ACQB 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(and_retold_acqb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) +{ + return __atomic_fetch_and(&var->value, mask, __ATOMIC_ACQUIRE); } +#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */ + +#if (ETHR_GCC_RELB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD_RELB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_AND_RETOLD_RELB 1 #endif -#if defined(ETHR_HAVE___SYNC_FETCH_AND_AND) +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(and_retold_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) +{ + return __atomic_fetch_and(&var->value, mask, __ATOMIC_RELEASE); +} + +#endif /* ETHR_GCC_RELB_MOD_VERSIONS__ */ + +#endif /* ETHR_HAVE___atomic_fetch_and */ + +#if ((ETHR_HAVE___sync_fetch_and_and & ETHR_INCLUDE_ATOMIC_IMPL__) \ + & ETHR_GCC_MB_MOD_VERSIONS__) #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 # define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD_MB 1 @@ -163,12 +403,68 @@ ETHR_NATMC_FUNC__(add_return_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr) static ETHR_INLINE ETHR_AINT_T__ ETHR_NATMC_FUNC__(and_retold_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) { - return __sync_fetch_and_and(&var->counter, mask); + return __sync_fetch_and_and(&var->value, mask); +} + +#endif /* ETHR_HAVE___sync_fetch_and_and */ + +/* + * or_retold() + */ +#if (ETHR_HAVE___atomic_fetch_or & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_OR_RETOLD 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(or_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) +{ + return __atomic_fetch_or(&var->value, mask, __ATOMIC_RELAXED); +} + +#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */ + +#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD_ACQB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_OR_RETOLD_ACQB 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(or_retold_acqb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) +{ + return __atomic_fetch_or(&var->value, mask, __ATOMIC_ACQUIRE); } +#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */ + +#if (ETHR_GCC_RELB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD_RELB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_OR_RETOLD_RELB 1 #endif -#if defined(ETHR_HAVE___SYNC_FETCH_AND_OR) +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(or_retold_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) +{ + return __atomic_fetch_or(&var->value, mask, __ATOMIC_RELEASE); +} + +#endif /* ETHR_GCC_RELB_MOD_VERSIONS__ */ + +#endif /* ETHR_HAVE___atomic_fetch_or */ + +#if ((ETHR_HAVE___sync_fetch_and_or & ETHR_INCLUDE_ATOMIC_IMPL__) \ + & ETHR_GCC_MB_MOD_VERSIONS__) #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 # define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD_MB 1 @@ -179,11 +475,73 @@ ETHR_NATMC_FUNC__(and_retold_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) static ETHR_INLINE ETHR_AINT_T__ ETHR_NATMC_FUNC__(or_retold_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask) { - return (ETHR_AINT_T__) __sync_fetch_and_or(&var->counter, mask); + return (ETHR_AINT_T__) __sync_fetch_and_or(&var->value, mask); +} + +#endif /* ETHR_HAVE___sync_fetch_and_or */ + +/* + * cmpxchg() + */ +#if (ETHR_HAVE___atomic_compare_exchange_n & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if (ETHR_GCC_RELAXED_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_CMPXCHG 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_CMPXCHG 1 +#endif + +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(cmpxchg)(ETHR_ATMC_T__ *var, + ETHR_AINT_T__ new, + ETHR_AINT_T__ exp) +{ + ETHR_AINT_T__ xchg = exp; + if (__atomic_compare_exchange_n(&var->value, + &xchg, + new, + 0, /* No spurious failures, please */ + __ATOMIC_RELAXED, + __ATOMIC_RELAXED)) + return exp; + return xchg; } +#endif /* ETHR_GCC_RELAXED_MOD_VERSIONS__ */ + +#if (ETHR_GCC_ACQB_MOD_VERSIONS__ & ETHR_INCLUDE_ATOMIC_IMPL__) + +#if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_CMPXCHG_ACQB 1 +#else +# define ETHR_HAVE_ETHR_NATIVE_ATOMIC64_CMPXCHG_ACQB 1 #endif +static ETHR_INLINE ETHR_AINT_T__ +ETHR_NATMC_FUNC__(cmpxchg_acqb)(ETHR_ATMC_T__ *var, + ETHR_AINT_T__ new, + ETHR_AINT_T__ exp) +{ + ETHR_AINT_T__ xchg = exp; + if (__atomic_compare_exchange_n(&var->value, + &xchg, + new, + 0, /* No spurious failures, please */ + __ATOMIC_ACQUIRE, + __ATOMIC_ACQUIRE)) + return exp; + return xchg; +} + +#endif /* ETHR_GCC_ACQB_MOD_VERSIONS__ */ + +#endif /* ETHR_HAVE___atomic_compare_exchange_n */ + +#if ((ETHR_HAVE___sync_val_compare_and_swap & ETHR_INCLUDE_ATOMIC_IMPL__) \ + & ETHR_GCC_MB_MOD_VERSIONS__) + #if ETHR_INCLUDE_ATOMIC_IMPL__ == 4 # define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_CMPXCHG_MB 1 #else @@ -195,17 +553,16 @@ ETHR_NATMC_FUNC__(cmpxchg_mb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ new, ETHR_AINT_T__ old) { - return __sync_val_compare_and_swap(&var->counter, old, new); + return __sync_val_compare_and_swap(&var->value, old, new); } +#endif /* ETHR_HAVE___sync_val_compare_and_swap */ + #endif /* ETHR_TRY_INLINE_FUNCS */ #undef ETHR_NATMC_FUNC__ #undef ETHR_ATMC_T__ #undef ETHR_AINT_T__ #undef ETHR_AINT_SUFFIX__ -#undef ETHR_HAVE___SYNC_ADD_AND_FETCH -#undef ETHR_HAVE___SYNC_FETCH_AND_AND -#undef ETHR_HAVE___SYNC_FETCH_AND_OR #endif |