wuggy/Dactyloidae
wuggy/Dactyloidae
1
0
Fork 0
mirror of https://repo.dactyloidae.xyz/Dactyloidae/UXP.git synced 2026-09-06 15:58:39 +09:00
Code Issues Projects Releases Packages Wiki Activity

MoonchildProductions#1251 - Part 7: All the posix_m* memory-related stuff, gathered together.

Browse source 
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.
This commit is contained in:
athenian200 2019-10-01 21:36:29 -05:00 • committed by Roy Tam
commit b652dd59ae
6 changed files with 33 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

18
memory/mozjemalloc/jemalloc.c
View file

@ -413,8 +413,8 @@ 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
@ -1043,7 +1043,7 @@ 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__)
@ -2651,8 +2651,13 @@ 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
@ -3608,9 +3613,14 @@ 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
@ -5136,7 +5146,7 @@ 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