Merge branch 'malloc-rewrite'

This resolves #263.

1 files changed, 0 insertions, 182 deletions

diff --git a/memory/build/mozjemalloc_compat.c b/memory/build/mozjemalloc_compat.c
deleted file mode 100644
index 6591892c1..000000000
--- a/memory/build/mozjemalloc_compat.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef MOZ_JEMALLOC4
-#  error Should only compile this file when building with jemalloc 3
-#endif
-
-#define MOZ_JEMALLOC_IMPL
-
-#include "mozmemory_wrap.h"
-#include "jemalloc_types.h"
-#include "mozilla/Types.h"
-
-#include <stdbool.h>
-
-#if defined(MOZ_SYSTEM_JEMALLOC)
-#  include MALLOC_H
-#else
-#  include "jemalloc/jemalloc.h"
-#endif
-
-/*
- *  CTL_* macros are from memory/jemalloc/src/src/stats.c with changes:
- *  - drop `t' argument to avoid redundancy in calculating type size
- *  - require `i' argument for arena number explicitly
- */
-
-#define	CTL_GET(n, v) do {						\
-	size_t sz = sizeof(v);						\
-	je_(mallctl)(n, &v, &sz, NULL, 0);				\
-} while (0)
-
-#define	CTL_I_GET(n, v, i) do {						\
-	size_t mib[6];							\
-	size_t miblen = sizeof(mib) / sizeof(mib[0]);			\
-	size_t sz = sizeof(v);						\
-	je_(mallctlnametomib)(n, mib, &miblen);			\
-	mib[2] = i;							\
-	je_(mallctlbymib)(mib, miblen, &v, &sz, NULL, 0);		\
-} while (0)
-
-#define	CTL_IJ_GET(n, v, i, j) do {					\
-	size_t mib[6];							\
-	size_t miblen = sizeof(mib) / sizeof(mib[0]);			\
-	size_t sz = sizeof(v);						\
-	je_(mallctlnametomib)(n, mib, &miblen);				\
-	mib[2] = i;							\
-	mib[4] = j;							\
-	je_(mallctlbymib)(mib, miblen, &v, &sz, NULL, 0);			\
-} while (0)
-
-/*
- * VARIABLE_ARRAY is copied from
- * memory/jemalloc/src/include/jemalloc/internal/jemalloc_internal.h.in
- */
-#if __STDC_VERSION__ < 199901L
-#  ifdef _MSC_VER
-#    include <malloc.h>
-#    define alloca _alloca
-#  else
-#    ifdef HAVE_ALLOCA_H
-#      include <alloca.h>
-#    else
-#      include <stdlib.h>
-#    endif
-#  endif
-#  define VARIABLE_ARRAY(type, name, count) \
-	type *name = alloca(sizeof(type) * (count))
-#else
-#  define VARIABLE_ARRAY(type, name, count) type name[(count)]
-#endif
-
-MOZ_MEMORY_API size_t
-malloc_good_size_impl(size_t size)
-{
-  /* je_nallocx crashes when given a size of 0. As
-   * malloc_usable_size(malloc(0)) and malloc_usable_size(malloc(1))
-   * return the same value, use a size of 1. */
-  if (size == 0)
-    size = 1;
-  return je_(nallocx)(size, 0);
-}
-
-static void
-compute_bin_unused_and_bookkeeping(jemalloc_stats_t *stats, unsigned int narenas)
-{
-    size_t bin_unused = 0;
-
-    uint32_t nregs; // number of regions per run in the j-th bin
-    size_t reg_size; // size of regions served by the j-th bin
-    size_t curruns; // number of runs belonging to a bin
-    size_t curregs; // number of allocated regions in a bin
-
-    unsigned int nbins; // number of bins per arena
-    unsigned int i, j;
-
-    size_t stats_metadata;
-    size_t stats_ametadata = 0; // total internal allocations in all arenas
-
-    // narenas also counts uninitialized arenas, and initialized arenas
-    // are not guaranteed to be adjacent
-    VARIABLE_ARRAY(bool, initialized, narenas);
-    size_t isz = sizeof(initialized) / sizeof(initialized[0]);
-
-    je_(mallctl)("arenas.initialized", initialized, &isz, NULL, 0);
-    CTL_GET("arenas.nbins", nbins);
-
-    for (j = 0; j < nbins; j++) {
-        CTL_I_GET("arenas.bin.0.nregs", nregs, j);
-        CTL_I_GET("arenas.bin.0.size", reg_size, j);
-
-        for (i = 0; i < narenas; i++) {
-            if (!initialized[i]) {
-                continue;
-            }
-
-            CTL_IJ_GET("stats.arenas.0.bins.0.curruns", curruns, i, j);
-            CTL_IJ_GET("stats.arenas.0.bins.0.curregs", curregs, i, j);
-
-            bin_unused += (nregs * curruns - curregs) * reg_size;
-        }
-    }
-
-    CTL_GET("stats.metadata", stats_metadata);
-
-    /* get the summation for all arenas, i == narenas */
-    CTL_I_GET("stats.arenas.0.metadata.allocated", stats_ametadata, narenas);
-
-    stats->bookkeeping = stats_metadata - stats_ametadata;
-    stats->bin_unused = bin_unused;
-}
-
-MOZ_JEMALLOC_API void
-jemalloc_stats_impl(jemalloc_stats_t *stats)
-{
-  unsigned narenas;
-  size_t active, allocated, mapped, page, pdirty;
-  size_t lg_chunk;
-
-  // Refresh jemalloc's stats by updating its epoch, see ctl_refresh in
-  // src/ctl.c
-  uint64_t epoch = 0;
-  size_t esz = sizeof(epoch);
-  je_(mallctl)("epoch", &epoch, &esz, &epoch, esz);
-
-  CTL_GET("arenas.narenas", narenas);
-  CTL_GET("arenas.page", page);
-  CTL_GET("stats.active", active);
-  CTL_GET("stats.allocated", allocated);
-  CTL_GET("stats.mapped", mapped);
-  CTL_GET("opt.lg_chunk", lg_chunk);
-
-  /* get the summation for all arenas, i == narenas */
-  CTL_I_GET("stats.arenas.0.pdirty", pdirty, narenas);
-
-  stats->chunksize = (size_t) 1 << lg_chunk;
-  stats->mapped = mapped;
-  stats->allocated = allocated;
-  stats->waste = active - allocated;
-  stats->page_cache = pdirty * page;
-  compute_bin_unused_and_bookkeeping(stats, narenas);
-  stats->waste -= stats->bin_unused;
-}
-
-MOZ_JEMALLOC_API void
-jemalloc_purge_freed_pages_impl()
-{
-}
-
-MOZ_JEMALLOC_API void
-jemalloc_free_dirty_pages_impl()
-{
-  unsigned narenas;
-  size_t mib[3];
-  size_t miblen = sizeof(mib) / sizeof(mib[0]);
-
-  CTL_GET("arenas.narenas", narenas);
-  je_(mallctlnametomib)("arena.0.purge", mib, &miblen);
-  mib[1] = narenas;
-  je_(mallctlbymib)(mib, miblen, NULL, NULL, NULL, 0);
-}