FixedVMPoolExecutableAllocator()
: MetaAllocator(32) // round up all allocations to 32 bytes
{
m_reservation = PageReservation::reserveWithGuardPages(fixedPoolSize, OSAllocator::JSJITCodePages, EXECUTABLE_POOL_WRITABLE, true);
#if !ENABLE(CLASSIC_INTERPRETER)
if (!m_reservation)
CRASH();
#endif
if (m_reservation) {
ASSERT(m_reservation.size() == fixedPoolSize);
addFreshFreeSpace(m_reservation.base(), m_reservation.size());
}
}
FixedVMPoolExecutableAllocator()
: MetaAllocator(jitAllocationGranule) // round up all allocations to 32 bytes
{
m_reservation = PageReservation::reserveWithGuardPages(fixedExecutableMemoryPoolSize, OSAllocator::JSJITCodePages, EXECUTABLE_POOL_WRITABLE, true);
#if !ENABLE(LLINT)
RELEASE_ASSERT(m_reservation);
#endif
if (m_reservation) {
ASSERT(m_reservation.size() == fixedExecutableMemoryPoolSize);
addFreshFreeSpace(m_reservation.base(), m_reservation.size());
startOfFixedExecutableMemoryPool = reinterpret_cast<uintptr_t>(m_reservation.base());
}
}
SuperRegion::SuperRegion()
: MetaAllocator(Region::s_regionSize, Region::s_regionSize)
, m_reservationBase(0)
{
#if ENABLE(SUPER_REGION)
// Over-allocate so that we can make sure that we're aligned to the size of Regions.
m_reservation = PageReservation::reserve(s_fixedHeapMemoryPoolSize + Region::s_regionSize, OSAllocator::JSGCHeapPages);
m_reservationBase = getAlignedBase(m_reservation);
addFreshFreeSpace(m_reservationBase, s_fixedHeapMemoryPoolSize);
#else
UNUSED_PARAM(m_reservation);
UNUSED_PARAM(m_reservationBase);
#endif
}
FixedVMPoolExecutableAllocator()
: MetaAllocator(jitAllocationGranule) // round up all allocations to 32 bytes
{
size_t reservationSize;
if (Options::jitMemoryReservationSize())
reservationSize = Options::jitMemoryReservationSize();
else
reservationSize = fixedExecutableMemoryPoolSize;
reservationSize = roundUpToMultipleOf(pageSize(), reservationSize);
m_reservation = PageReservation::reserveWithGuardPages(reservationSize, OSAllocator::JSJITCodePages, EXECUTABLE_POOL_WRITABLE, true);
if (m_reservation) {
ASSERT(m_reservation.size() == reservationSize);
addFreshFreeSpace(m_reservation.base(), m_reservation.size());
startOfFixedExecutableMemoryPool = reinterpret_cast<uintptr_t>(m_reservation.base());
}
}
