| //===------------ Memory.cpp - Implementation of the Memory class --------===// |
| // |
| // The VMKit project |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "debug.h" |
| #include "mvm/VirtualMachine.h" |
| #include "MMTkObject.h" |
| |
| #include <sys/mman.h> |
| |
| namespace mmtk { |
| |
| extern "C" uintptr_t Java_org_j3_mmtk_Memory_getHeapStartConstant__ (MMTkObject* M) { |
| return (uintptr_t)0x30000000; |
| } |
| |
| extern "C" uintptr_t Java_org_j3_mmtk_Memory_getHeapEndConstant__ (MMTkObject* M) { |
| return (uintptr_t)0x60000000; |
| } |
| |
| extern "C" uintptr_t Java_org_j3_mmtk_Memory_getAvailableStartConstant__ (MMTkObject* M) { |
| return (uintptr_t)0x30000000; |
| } |
| |
| extern "C" uintptr_t Java_org_j3_mmtk_Memory_getAvailableEndConstant__ (MMTkObject* M) { |
| return (uintptr_t)0x60000000; |
| } |
| |
| extern "C" sint32 |
| Java_org_j3_mmtk_Memory_dzmmap__Lorg_vmmagic_unboxed_Address_2I(MMTkObject* M, |
| void* start, |
| sint32 size) { |
| // Already mmapped during initialization. |
| return 0; |
| } |
| |
| extern "C" uint8_t |
| Java_org_j3_mmtk_Memory_mprotect__Lorg_vmmagic_unboxed_Address_2I (MMTkObject* M, uintptr_t address, sint32 size) { |
| int val = mprotect((void*)address, size, PROT_NONE); |
| return (val == 0); |
| } |
| |
| extern "C" uint8_t |
| Java_org_j3_mmtk_Memory_munprotect__Lorg_vmmagic_unboxed_Address_2I (MMTkObject* M, uintptr_t address, sint32 size) { |
| int val = mprotect((void*)address, size, PROT_READ | PROT_WRITE); |
| return (val == 0); |
| } |
| |
| extern "C" void |
| Java_org_j3_mmtk_Memory_zero__Lorg_vmmagic_unboxed_Address_2Lorg_vmmagic_unboxed_Extent_2(MMTkObject* M, |
| void* addr, |
| uintptr_t len) { |
| memset(addr, 0, len); |
| } |
| |
| extern "C" void |
| Java_org_j3_mmtk_Memory_zeroPages__Lorg_vmmagic_unboxed_Address_2I (MMTkObject* M, uintptr_t address, sint32 size) { |
| UNIMPLEMENTED(); |
| } |
| |
| extern "C" void |
| Java_org_j3_mmtk_Memory_dumpMemory__Lorg_vmmagic_unboxed_Address_2II (MMTkObject* M, uintptr_t address, sint32 before, sint32 after) { |
| UNIMPLEMENTED(); |
| } |
| |
| } |