diff options
Diffstat (limited to 'memory/mozjemalloc/jemalloc.c')
| -rw-r--r-- | memory/mozjemalloc/jemalloc.c | 47 |
1 files changed, 10 insertions, 37 deletions
diff --git a/memory/mozjemalloc/jemalloc.c b/memory/mozjemalloc/jemalloc.c index acaf2572c..6fccc0a03 100644 --- a/memory/mozjemalloc/jemalloc.c +++ b/memory/mozjemalloc/jemalloc.c @@ -2,7 +2,7 @@ /* vim:set softtabstop=8 shiftwidth=8 noet: */ /*- * Copyright (C) 2006-2008 Jason Evans <jasone@FreeBSD.org>. - * Copyright (C) 2015-2018 Mark Straver <moonchild@palemoon.org> + * Copyright (C) 2015-2019 Mark Straver <moonchild@palemoon.org> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -179,13 +179,6 @@ # define MALLOC_SYSV #endif -/* - * MALLOC_VALIDATE causes malloc_usable_size() to perform some pointer - * validation. There are many possible errors that validation does not even - * attempt to detect. - */ -#define MALLOC_VALIDATE - #if defined(MOZ_MEMORY_LINUX) && !defined(MOZ_MEMORY_ANDROID) #define _GNU_SOURCE /* For mremap(2). */ #if 0 /* Enable in order to test decommit code on Linux. */ @@ -726,16 +719,15 @@ typedef rb_tree(extent_node_t) extent_tree_t; * Radix tree data structures. */ -#ifdef MALLOC_VALIDATE - /* - * Size of each radix tree node (must be a power of 2). This impacts tree - * depth. - */ -# if (SIZEOF_PTR == 4) -# define MALLOC_RTREE_NODESIZE (1U << 14) -# else -# define MALLOC_RTREE_NODESIZE CACHELINE -# endif +/* + * Size of each radix tree node (must be a power of 2). This impacts tree + * depth. + */ +#if (SIZEOF_PTR == 4) +#define MALLOC_RTREE_NODESIZE (1U << 14) +#else +#define MALLOC_RTREE_NODESIZE CACHELINE +#endif typedef struct malloc_rtree_s malloc_rtree_t; struct malloc_rtree_s { @@ -744,7 +736,6 @@ struct malloc_rtree_s { unsigned height; unsigned level2bits[1]; /* Dynamically sized. */ }; -#endif /******************************************************************************/ /* @@ -1149,9 +1140,7 @@ static size_t recycled_size; * Chunks. */ -#ifdef MALLOC_VALIDATE static malloc_rtree_t *chunk_rtree; -#endif /* Protects chunk-related data structures. */ static malloc_mutex_t chunks_mtx; @@ -2369,7 +2358,6 @@ pages_copy(void *dest, const void *src, size_t n) } #endif -#ifdef MALLOC_VALIDATE static inline malloc_rtree_t * malloc_rtree_new(unsigned bits) { @@ -2510,7 +2498,6 @@ malloc_rtree_set(malloc_rtree_t *rtree, uintptr_t key, void *val) return (false); } -#endif /* pages_trim, chunk_alloc_mmap_slow and chunk_alloc_mmap were cherry-picked * from upstream jemalloc 3.4.1 to fix Mozilla bug 956501. */ @@ -2799,14 +2786,12 @@ chunk_alloc(size_t size, size_t alignment, bool base, bool zero) ret = NULL; RETURN: -#ifdef MALLOC_VALIDATE if (ret != NULL && base == false) { if (malloc_rtree_set(chunk_rtree, (uintptr_t)ret, ret)) { chunk_dealloc(ret, size); return (NULL); } } -#endif assert(CHUNK_ADDR2BASE(ret) == ret); return (ret); @@ -2924,9 +2909,7 @@ chunk_dealloc(void *chunk, size_t size) assert(size != 0); assert((size & chunksize_mask) == 0); -#ifdef MALLOC_VALIDATE malloc_rtree_set(chunk_rtree, (uintptr_t)chunk, NULL); -#endif if (chunk_dalloc_mmap(chunk, size)) chunk_record(&chunks_szad_mmap, &chunks_ad_mmap, chunk, size); @@ -4284,7 +4267,6 @@ arena_salloc(const void *ptr) return (ret); } -#if (defined(MALLOC_VALIDATE) || defined(MOZ_MEMORY_DARWIN)) /* * Validate ptr before assuming that it points to an allocation. Currently, * the following validation is performed: @@ -4325,7 +4307,6 @@ isalloc_validate(const void *ptr) return (ret); } } -#endif static inline size_t isalloc(const void *ptr) @@ -5775,11 +5756,9 @@ MALLOC_OUT: malloc_spin_init(&arenas_lock); -#ifdef MALLOC_VALIDATE chunk_rtree = malloc_rtree_new((SIZEOF_PTR << 3) - opt_chunk_2pow); if (chunk_rtree == NULL) return (true); -#endif malloc_initialized = true; @@ -6258,13 +6237,7 @@ malloc_usable_size_impl(MALLOC_USABLE_SIZE_CONST_PTR void *ptr) { DARWIN_ONLY(return (szone->size)(szone, ptr)); -#ifdef MALLOC_VALIDATE return (isalloc_validate(ptr)); -#else - assert(ptr != NULL); - - return (isalloc(ptr)); -#endif } MOZ_JEMALLOC_API void |