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| author | athenian200 <athenian200@outlook.com> | 2019-10-01 21:36:29 -0500 |
|---|---|---|
| committer | athenian200 <athenian200@outlook.com> | 2019-10-21 04:53:40 -0500 |
| commit | 3647f42c27761472e4ee204bade964e8ffad4679 (patch) | |
| tree | 40fa50571360bd3630ddb2f3e153c4a7ef468cd7 /memory | |
| parent | 57bfda37aebdef6a0f7bbb320d508dfaf1a89718 (diff) | |
| download | uxp-3647f42c27761472e4ee204bade964e8ffad4679.tar.gz | |
MoonchildProductions#1251 - Part 7: All the posix_m* memory-related stuff, gathered together.
https://bugzilla.mozilla.org/show_bug.cgi?id=1158445
https://bugzilla.mozilla.org/show_bug.cgi?id=963983
https://bugzilla.mozilla.org/show_bug.cgi?id=1542758
Solaris madvise and malign don't perfectly map to their POSIX counterparts, and some Linux versions (especially Android) don't define the POSIX counterparts at all, so options are limited. Ideally posix_madvise and posix_malign should be the safer and more portable options for all platforms.
Diffstat (limited to 'memory')
| -rw-r--r-- | memory/mozjemalloc/jemalloc.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/memory/mozjemalloc/jemalloc.c b/memory/mozjemalloc/jemalloc.c index c54a85959f..acaf2572c9 100644 --- a/memory/mozjemalloc/jemalloc.c +++ b/memory/mozjemalloc/jemalloc.c @@ -410,8 +410,8 @@ void *_mmap(void *addr, size_t length, int prot, int flags, #endif #endif -#if defined(MOZ_MEMORY_SOLARIS && defined(MAP_ALIGN) && !defined(JEMALLOC_NEVER_USES_MAP_ALIGN) -#define JEMALLOC_USES_MAP_ALIGN /* Required on Solaris 10. Might improve performance elsewhere. */ +#if defined(MOZ_MEMORY_SOLARIS) && defined(MAP_ALIGN) && !defined(JEMALLOC_NEVER_USES_MAP_ALIGN) +#define JEMALLOC_USES_MAP_ALIGN /* Required on Solaris 10. Might improve performance elsewhere. */ #endif #ifndef __DECONST @@ -1040,7 +1040,7 @@ static const bool config_recycle = false; * will abort. * Platform specific page size conditions copied from js/public/HeapAPI.h */ -#if (defined(__FreeBSD__)) && \ +#if (defined(SOLARIS) || defined(__FreeBSD__)) && \ (defined(__sparc) || defined(__sparcv9) || defined(__ia64)) #define pagesize_2pow ((size_t) 13) #elif defined(__powerpc64__) @@ -2646,8 +2646,13 @@ pages_purge(void *addr, size_t length) # define JEMALLOC_MADV_PURGE MADV_FREE # define JEMALLOC_MADV_ZEROS false # endif +#ifdef MOZ_MEMORY_SOLARIS + int err = posix_madvise(addr, length, JEMALLOC_MADV_PURGE); + unzeroed = (JEMALLOC_MADV_ZEROS == false || err != 0); +#else int err = madvise(addr, length, JEMALLOC_MADV_PURGE); unzeroed = (JEMALLOC_MADV_ZEROS == false || err != 0); +#endif # undef JEMALLOC_MADV_PURGE # undef JEMALLOC_MADV_ZEROS # endif @@ -3603,9 +3608,14 @@ arena_purge(arena_t *arena, bool all) #endif #ifndef MALLOC_DECOMMIT +#ifdef MOZ_MEMORY_SOLARIS + posix_madvise((void*)((uintptr_t)chunk + (i << pagesize_2pow)), + (npages << pagesize_2pow),MADV_FREE); +#else madvise((void *)((uintptr_t)chunk + (i << pagesize_2pow)), (npages << pagesize_2pow), MADV_FREE); +#endif # ifdef MALLOC_DOUBLE_PURGE madvised = true; # endif @@ -5131,7 +5141,7 @@ malloc_ncpus(void) static inline unsigned malloc_ncpus(void) { - return sysconf(_SC_NPROCESSORS_ONLN); + return sysconf(_SC_NPROCESSORS_ONLN); } #elif (defined(MOZ_MEMORY_WINDOWS)) static inline unsigned |