227 lines
6.7 KiB
C++
227 lines
6.7 KiB
C++
/*
|
|
* Copyright (C) 2017-2021 Apple Inc. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "bmalloc.h"
|
|
|
|
#include "DebugHeap.h"
|
|
#include "Environment.h"
|
|
#include "PerProcess.h"
|
|
|
|
#if BENABLE(LIBPAS)
|
|
#include "bmalloc_heap_config.h"
|
|
#include "pas_page_sharing_pool.h"
|
|
#include "pas_scavenger.h"
|
|
#include "pas_thread_local_cache.h"
|
|
#endif
|
|
|
|
namespace bmalloc { namespace api {
|
|
|
|
#if BUSE(LIBPAS)
|
|
pas_primitive_heap_ref gigacageHeaps[Gigacage::NumberOfKinds] =
|
|
{[0 ... Gigacage::NumberOfKinds - 1] = BMALLOC_AUXILIARY_HEAP_REF_INITIALIZER};
|
|
#endif
|
|
|
|
void* mallocOutOfLine(size_t size, HeapKind kind)
|
|
{
|
|
return malloc(size, kind);
|
|
}
|
|
|
|
void freeOutOfLine(void* object, HeapKind kind)
|
|
{
|
|
free(object, kind);
|
|
}
|
|
|
|
void* tryLargeZeroedMemalignVirtual(size_t requiredAlignment, size_t requestedSize, HeapKind kind)
|
|
{
|
|
RELEASE_BASSERT(isPowerOfTwo(requiredAlignment));
|
|
|
|
size_t pageSize = vmPageSize();
|
|
size_t alignment = roundUpToMultipleOf(pageSize, requiredAlignment);
|
|
size_t size = roundUpToMultipleOf(pageSize, requestedSize);
|
|
RELEASE_BASSERT(alignment >= requiredAlignment);
|
|
RELEASE_BASSERT(size >= requestedSize);
|
|
|
|
void* result;
|
|
if (auto* debugHeap = DebugHeap::tryGet())
|
|
result = debugHeap->memalignLarge(alignment, size);
|
|
else {
|
|
#if BUSE(LIBPAS)
|
|
result = tryMemalign(alignment, size, kind);
|
|
#else
|
|
kind = mapToActiveHeapKind(kind);
|
|
Heap& heap = PerProcess<PerHeapKind<Heap>>::get()->at(kind);
|
|
|
|
UniqueLockHolder lock(Heap::mutex());
|
|
result = heap.allocateLarge(lock, alignment, size, FailureAction::ReturnNull);
|
|
if (result) {
|
|
// Don't track this as dirty memory that dictates how we drive the scavenger.
|
|
// FIXME: We should make it so that users of this API inform bmalloc which
|
|
// pages they dirty:
|
|
// https://bugs.webkit.org/show_bug.cgi?id=184207
|
|
heap.externalDecommit(lock, result, size);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (result)
|
|
vmZeroAndPurge(result, size);
|
|
return result;
|
|
}
|
|
|
|
void freeLargeVirtual(void* object, size_t size, HeapKind kind)
|
|
{
|
|
#if BUSE(LIBPAS)
|
|
BUNUSED(size);
|
|
BUNUSED(kind);
|
|
if (auto* debugHeap = DebugHeap::tryGet()) {
|
|
debugHeap->freeLarge(object);
|
|
return;
|
|
}
|
|
bmalloc_deallocate_inline(object);
|
|
#else
|
|
if (auto* debugHeap = DebugHeap::tryGet()) {
|
|
debugHeap->freeLarge(object);
|
|
return;
|
|
}
|
|
kind = mapToActiveHeapKind(kind);
|
|
Heap& heap = PerProcess<PerHeapKind<Heap>>::get()->at(kind);
|
|
UniqueLockHolder lock(Heap::mutex());
|
|
// Balance out the externalDecommit when we allocated the zeroed virtual memory.
|
|
heap.externalCommit(lock, object, size);
|
|
heap.deallocateLarge(lock, object);
|
|
#endif
|
|
}
|
|
|
|
void scavengeThisThread()
|
|
{
|
|
#if BENABLE(LIBPAS)
|
|
pas_thread_local_cache_shrink(pas_thread_local_cache_try_get(),
|
|
pas_lock_is_not_held);
|
|
#endif
|
|
#if !BUSE(LIBPAS)
|
|
if (!DebugHeap::tryGet()) {
|
|
for (unsigned i = numHeaps; i--;)
|
|
Cache::scavenge(static_cast<HeapKind>(i));
|
|
IsoTLS::scavenge();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void scavenge()
|
|
{
|
|
#if BENABLE(LIBPAS)
|
|
pas_scavenger_run_synchronously_now();
|
|
#endif
|
|
scavengeThisThread();
|
|
if (DebugHeap* debugHeap = DebugHeap::tryGet())
|
|
debugHeap->scavenge();
|
|
else {
|
|
#if !BUSE(LIBPAS)
|
|
Scavenger::get()->scavenge();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
bool isEnabled(HeapKind)
|
|
{
|
|
return !Environment::get()->isDebugHeapEnabled();
|
|
}
|
|
|
|
#if BOS(DARWIN)
|
|
void setScavengerThreadQOSClass(qos_class_t overrideClass)
|
|
{
|
|
#if BENABLE(LIBPAS)
|
|
pas_scavenger_requested_qos_class = overrideClass;
|
|
#endif
|
|
#if !BUSE(LIBPAS)
|
|
if (!DebugHeap::tryGet()) {
|
|
UniqueLockHolder lock(Heap::mutex());
|
|
Scavenger::get()->setScavengerThreadQOSClass(overrideClass);
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
void commitAlignedPhysical(void* object, size_t size, HeapKind kind)
|
|
{
|
|
vmValidatePhysical(object, size);
|
|
vmAllocatePhysicalPages(object, size);
|
|
#if BUSE(LIBPAS)
|
|
BUNUSED(kind);
|
|
#else
|
|
if (!DebugHeap::tryGet())
|
|
PerProcess<PerHeapKind<Heap>>::get()->at(kind).externalCommit(object, size);
|
|
#endif
|
|
}
|
|
|
|
void decommitAlignedPhysical(void* object, size_t size, HeapKind kind)
|
|
{
|
|
vmValidatePhysical(object, size);
|
|
vmDeallocatePhysicalPages(object, size);
|
|
#if BUSE(LIBPAS)
|
|
BUNUSED(kind);
|
|
#else
|
|
if (!DebugHeap::tryGet())
|
|
PerProcess<PerHeapKind<Heap>>::get()->at(kind).externalDecommit(object, size);
|
|
#endif
|
|
}
|
|
|
|
void enableMiniMode()
|
|
{
|
|
#if BENABLE(LIBPAS)
|
|
// Speed up the scavenger.
|
|
pas_scavenger_period_in_milliseconds = 10.;
|
|
pas_scavenger_max_epoch_delta = 10ll * 1000ll * 1000ll;
|
|
|
|
// Do eager scavenging anytime pages are allocated or committed.
|
|
pas_physical_page_sharing_pool_balancing_enabled = true;
|
|
pas_physical_page_sharing_pool_balancing_enabled_for_utility = true;
|
|
|
|
// Switch to bitfit allocation for anything that isn't isoheaped.
|
|
bmalloc_intrinsic_primitive_runtime_config.base.max_segregated_object_size = 0;
|
|
bmalloc_intrinsic_primitive_runtime_config.base.max_bitfit_object_size = UINT_MAX;
|
|
bmalloc_primitive_runtime_config.base.max_segregated_object_size = 0;
|
|
bmalloc_primitive_runtime_config.base.max_bitfit_object_size = UINT_MAX;
|
|
#endif
|
|
#if !BUSE(LIBPAS)
|
|
if (!DebugHeap::tryGet())
|
|
Scavenger::get()->enableMiniMode();
|
|
#endif
|
|
}
|
|
|
|
void disableScavenger()
|
|
{
|
|
#if BENABLE(LIBPAS)
|
|
pas_scavenger_suspend();
|
|
#endif
|
|
#if !BUSE(LIBPAS)
|
|
if (!DebugHeap::tryGet())
|
|
Scavenger::get()->disable();
|
|
#endif
|
|
}
|
|
|
|
} } // namespace bmalloc::api
|
|
|