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| author | Sverker Eriksson <[email protected]> | 2011-03-02 18:29:36 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2011-03-03 17:20:06 +0100 |
| commit | cf9bb9e1e5f1cf58e88b8949b1124b0f160d25fe (patch) | |
| tree | 0408e86c8b0e7beac92ad304964ff93beb1ec9aa /erts/emulator/beam/erl_alloc.h | |
| parent | 8c4ece5c36e153e739f344eccadd01b4c3e7ccce (diff) | |
| download | otp-cf9bb9e1e5f1cf58e88b8949b1124b0f160d25fe.tar.gz otp-cf9bb9e1e5f1cf58e88b8949b1124b0f160d25fe.tar.bz2 otp-cf9bb9e1e5f1cf58e88b8949b1124b0f160d25fe.zip | |
Add erts_alloc_permanent_cache_aligned to supress valgrind
Ease the valgrind supression of memory that are permanently
allocated and then aligned up to cache line.
Diffstat (limited to 'erts/emulator/beam/erl_alloc.h')
| -rw-r--r-- | erts/emulator/beam/erl_alloc.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/erts/emulator/beam/erl_alloc.h b/erts/emulator/beam/erl_alloc.h index dd4cc22171..2cd62c01c1 100644 --- a/erts/emulator/beam/erl_alloc.h +++ b/erts/emulator/beam/erl_alloc.h @@ -172,9 +172,17 @@ void *erts_realloc(ErtsAlcType_t type, void *ptr, Uint size); void erts_free(ErtsAlcType_t type, void *ptr); void *erts_alloc_fnf(ErtsAlcType_t type, Uint size); void *erts_realloc_fnf(ErtsAlcType_t type, void *ptr, Uint size); +void *erts_alloc_permanent_cache_aligned(ErtsAlcType_t type, Uint size); + #endif /* #if !ERTS_ALC_DO_INLINE */ +#ifndef ERTS_CACHE_LINE_SIZE +/* Assume a cache line size of 64 bytes */ +# define ERTS_CACHE_LINE_SIZE ((UWord) 64) +# define ERTS_CACHE_LINE_MASK (ERTS_CACHE_LINE_SIZE - 1) +#endif + #if ERTS_ALC_DO_INLINE || defined(ERTS_ALC_INTERNAL__) ERTS_ALC_INLINE @@ -234,6 +242,18 @@ void *erts_realloc_fnf(ErtsAlcType_t type, void *ptr, Uint size) size); } +ERTS_ALC_INLINE +void *erts_alloc_permanent_cache_aligned(ErtsAlcType_t type, Uint size) +{ + UWord v = (UWord) erts_alloc(type, size + (ERTS_CACHE_LINE_SIZE-1)); + + if (v & ERTS_CACHE_LINE_MASK) { + v = (v & ~ERTS_CACHE_LINE_MASK) + ERTS_CACHE_LINE_SIZE; + } + ASSERT((v & ERTS_CACHE_LINE_MASK) == 0); + return (void*)v; +} + #endif /* #if ERTS_ALC_DO_INLINE || defined(ERTS_ALC_INTERNAL__) */ typedef void (*erts_alloc_verify_func_t)(Allctr_t *); @@ -241,11 +261,6 @@ typedef void (*erts_alloc_verify_func_t)(Allctr_t *); erts_alloc_verify_func_t erts_alloc_get_verify_unused_temp_alloc(Allctr_t **allctr); -#ifndef ERTS_CACHE_LINE_SIZE -/* Assume a cache line size of 64 bytes */ -# define ERTS_CACHE_LINE_SIZE ((UWord) 64) -# define ERTS_CACHE_LINE_MASK (ERTS_CACHE_LINE_SIZE - 1) -#endif #define ERTS_ALC_CACHE_LINE_ALIGN_SIZE(SZ) \ (((((SZ) - 1) / ERTS_CACHE_LINE_SIZE) + 1) * ERTS_CACHE_LINE_SIZE) |