Bug 678977 - Teach sqlite to use jemalloc directly when applicable. ... (c2b905ac) · Commits · The Tor Project / Applications / Mullvad Browser

build/unix/gnu-ld-scripts/jemalloc-standalone-linkage-version-script

+1 −0

Original line number	Diff line number	Diff line
		@@ -4,6 +4,7 @@
		_malloc_prefork;
		jemalloc_stats;
		malloc_usable_size;
		je_malloc_usable_size_in_advance;
		posix_memalign;
		free;
		realloc;

+41 −0

Original line number	Diff line number	Diff line
		@@ -6495,6 +6495,47 @@ free(void *ptr)
		/*
		* Begin non-standard functions.
		*/

		/* This was added by Mozilla for use by SQLite. */
		size_t
		je_malloc_usable_size_in_advance(size_t size)
		{
		/*
		* This duplicates the logic in imalloc(), arena_malloc() and
		* arena_malloc_small().
		*/
		if (size < small_min) {
		/* Small (tiny). */
		size = pow2_ceil(size);
		/*
		* We omit the #ifdefs from arena_malloc_small() --
		* it can be inaccurate with its size in some cases, but this
		* function must be accurate.
		*/
		if (size < (1U << TINY_MIN_2POW))
		size = (1U << TINY_MIN_2POW);
		} else if (size <= small_max) {
		/* Small (quantum-spaced). */
		size = QUANTUM_CEILING(size);
		} else if (size <= bin_maxclass) {
		/* Small (sub-page). */
		size = pow2_ceil(size);
		} else if (size <= arena_maxclass) {
		/* Large. */
		size = PAGE_CEILING(size);
		} else {
		/*
		* Huge. We use PAGE_CEILING to get psize, instead of using
		* CHUNK_CEILING to get csize. This ensures that this
		* malloc_usable_size(malloc(n)) always matches
		* je_malloc_usable_size_in_advance(n).
		*/
		size = PAGE_CEILING(size);
		}
		return size;
		}


		#ifdef MOZ_MEMORY_ANDROID
		size_t
		malloc_usable_size(void *ptr)

+3 −0

Original line number	Diff line number	Diff line
		@@ -80,6 +80,9 @@ size_t malloc_usable_size(const void *ptr);

		void jemalloc_stats(jemalloc_stats_t *stats);

		/* Computes the usable size in advance. */
		size_t je_malloc_usable_size_in_advance(size_t size);

		/*
		* On some operating systems (Mac), we use madvise(MADV_FREE) to hand pages
		* back to the operating system. On Mac, the operating system doesn't take

+1 −0

Original line number	Diff line number	Diff line
		@@ -51,6 +51,7 @@ EXPORTS
		wcsdup=je_wcsdup
		_wcsdup=je_wcsdup
		malloc_usable_size=je_malloc_usable_size
		je_malloc_usable_size_in_advance
		jemalloc_stats
		; A hack to work around the CRT (see giant comment in Makefile.in)
		frex=je_dumb_free_thunk

+4 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,10 @@ FORCE_STATIC_LIB = 1
		GRE_MODULE = 1
		LIBXUL_LIBRARY = 1

		# TODO: we do this in crashreporter and xpcom/base too, should be centralized
		ifeq ($(OS_ARCH),Linux)
		DEFINES += -DXP_LINUX
		endif

		EXPORTS_NAMESPACES = mozilla/storage