38 public final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
39 public final boolean useCompressedClassPointers = getFlag("UseCompressedClassPointers", Boolean.class);
40
41 public final long narrowOopBase = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_base", Long.class, "address");
42 public final int narrowOopShift = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_shift", Integer.class, "int");
43
44 public final long narrowKlassBase = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_base", Long.class, "address");
45 public final int narrowKlassShift = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_shift", Integer.class, "int");
46
47 public final int classMirrorHandleOffset = getFieldOffset("Klass::_java_mirror", Integer.class, "OopHandle");
48
49 // Checkstyle: stop
50 public final int MARKID_DEOPT_HANDLER_ENTRY = getConstant("CodeInstaller::DEOPT_HANDLER_ENTRY", Integer.class);
51 public final int MARKID_FRAME_COMPLETE = getConstant("CodeInstaller::FRAME_COMPLETE", Integer.class);
52 public final int MARKID_ENTRY_BARRIER_PATCH = getConstant("CodeInstaller::ENTRY_BARRIER_PATCH", Integer.class);
53 public final long handleDeoptStub = getFieldValue("CompilerToVM::Data::SharedRuntime_deopt_blob_unpack", Long.class, "address");
54
55 public final int maxOopMapStackOffset = getFieldValue("CompilerToVM::Data::_max_oop_map_stack_offset", Integer.class, "int");
56 public final int heapWordSize = getConstant("HeapWordSize", Integer.class);
57
58 public final boolean ropProtection;
59
60 private Boolean initNmethodEntryBarrierConcurrentPatch(Architecture arch) {
61 Boolean patchConcurrent = null;
62 if (arch instanceof AArch64 && nmethodEntryBarrier != 0) {
63 Integer patchingType = getFieldValue("CompilerToVM::Data::BarrierSetAssembler_nmethod_patching_type", Integer.class, "int");
64 if (patchingType != null) {
65 // There currently only 2 variants in use that differ only by the presence of a
66 // dmb instruction
67 int stw = getConstant("NMethodPatchingType::stw_instruction_and_data_patch", Integer.class);
68 int conc = getConstant("NMethodPatchingType::conc_data_patch", Integer.class);
69 if (patchingType == stw) {
70 patchConcurrent = false;
71 } else if (patchingType == conc) {
72 patchConcurrent = true;
73 } else {
74 throw new IllegalArgumentException("unsupported barrier sequence " + patchingType);
75 }
76 }
77 }
|
38 public final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
39 public final boolean useCompressedClassPointers = getFlag("UseCompressedClassPointers", Boolean.class);
40
41 public final long narrowOopBase = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_base", Long.class, "address");
42 public final int narrowOopShift = getFieldValue("CompilerToVM::Data::Universe_narrow_oop_shift", Integer.class, "int");
43
44 public final long narrowKlassBase = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_base", Long.class, "address");
45 public final int narrowKlassShift = getFieldValue("CompilerToVM::Data::Universe_narrow_klass_shift", Integer.class, "int");
46
47 public final int classMirrorHandleOffset = getFieldOffset("Klass::_java_mirror", Integer.class, "OopHandle");
48
49 // Checkstyle: stop
50 public final int MARKID_DEOPT_HANDLER_ENTRY = getConstant("CodeInstaller::DEOPT_HANDLER_ENTRY", Integer.class);
51 public final int MARKID_FRAME_COMPLETE = getConstant("CodeInstaller::FRAME_COMPLETE", Integer.class);
52 public final int MARKID_ENTRY_BARRIER_PATCH = getConstant("CodeInstaller::ENTRY_BARRIER_PATCH", Integer.class);
53 public final long handleDeoptStub = getFieldValue("CompilerToVM::Data::SharedRuntime_deopt_blob_unpack", Long.class, "address");
54
55 public final int maxOopMapStackOffset = getFieldValue("CompilerToVM::Data::_max_oop_map_stack_offset", Integer.class, "int");
56 public final int heapWordSize = getConstant("HeapWordSize", Integer.class);
57
58 // Check field with intx declaration is the same as int64_t.
59 public final int heldMonitorCountOffset = getFieldOffset("JavaThread::_held_monitor_count", Integer.class, "int64_t");
60
61 public final boolean ropProtection;
62
63 private Boolean initNmethodEntryBarrierConcurrentPatch(Architecture arch) {
64 Boolean patchConcurrent = null;
65 if (arch instanceof AArch64 && nmethodEntryBarrier != 0) {
66 Integer patchingType = getFieldValue("CompilerToVM::Data::BarrierSetAssembler_nmethod_patching_type", Integer.class, "int");
67 if (patchingType != null) {
68 // There currently only 2 variants in use that differ only by the presence of a
69 // dmb instruction
70 int stw = getConstant("NMethodPatchingType::stw_instruction_and_data_patch", Integer.class);
71 int conc = getConstant("NMethodPatchingType::conc_data_patch", Integer.class);
72 if (patchingType == stw) {
73 patchConcurrent = false;
74 } else if (patchingType == conc) {
75 patchConcurrent = true;
76 } else {
77 throw new IllegalArgumentException("unsupported barrier sequence " + patchingType);
78 }
79 }
80 }
|