Mercurial > hg > aarch64-jdk8u51-b16-hotspot

changeset 8161:ca35eec73149 cpu-20150714

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Merge 2015/07 CPU.
author andrew
date Thu, 02 Jul 2015 03:35:20 +0100
parents 03b6247f0795 (current diff) 24fe7303237f (diff)
children b09c0945223b
files .hgtags THIRD_PARTY_README make/hotspot_version src/os/bsd/vm/perfMemory_bsd.cpp src/os/linux/vm/perfMemory_linux.cpp src/os/solaris/vm/perfMemory_solaris.cpp src/share/vm/c1/c1_LIRGenerator.cpp src/share/vm/classfile/defaultMethods.cpp src/share/vm/classfile/systemDictionary.cpp src/share/vm/code/dependencies.cpp src/share/vm/memory/referenceProcessor.cpp src/share/vm/oops/instanceKlass.cpp src/share/vm/oops/instanceKlass.hpp src/share/vm/oops/klassVtable.cpp src/share/vm/runtime/arguments.cpp src/share/vm/utilities/vmError.cpp
diffstat 5 files changed, 67 insertions(+), 22 deletions(-) [+]
line wrap: on
line diff
--- a/.hgtags	Thu Jul 02 03:31:00 2015 +0100
+++ b/.hgtags	Thu Jul 02 03:35:20 2015 +0100
@@ -555,6 +555,8 @@
 28b50d07f6f8c5a567b6a25e95a423948114a004 jdk8u25-b17
 639abc668bfe995dba811dd35411b9ea8a9041cd jdk8u25-b18
 c3528699fb33fe3eb1d117504184ae7ab2507aa1 jdk8u25-b31
+631f0c7b49c091c6865d79d248d6551a270ac22f jdk8u25-b32
+4e1f52384f9ffa803838acad545cd63de48a7b35 jdk8u25-b33
 5bb683bbe2c74876d585b5c3232fc3aab7b23e97 jdk8u31-b00
 5bb686ae3b89f8aa1c74331b2d24e2a5ebd43448 jdk8u31-b01
 087678da96603c9705b38b6cc4a6569ac7b4420a jdk8u31-b02
@@ -569,6 +571,8 @@
 9906d432d6dbd2cda242e3f3cfde7cf6c90245bf jdk8u31-b11
 e13839545238d1ecf17f0489bb6fb765de46719a jdk8u31-b12
 4206e725d584be942c25ff46ff23d8e299ca4a4c jdk8u31-b13
+b517d3a9aebf0fee64808f9a7c0ef8e0b82d5ed3 jdk8u31-b31
+15d8108258cb60a58bdd03b9ff8e77dd6727a804 jdk8u31-b32
 1b3abbeee961dee49780c0e4af5337feb918c555 jdk8u40-b10
 f10fe402dfb1543723b4b117a7cba3ea3d4159f1 hs25.40-b15
 99372b2fee0eb8b3452f47230e84aa6e97003184 jdk8u40-b11
@@ -597,3 +601,20 @@
 fa4e797f61e6dda1a60e06944018213bff2a1b76 jdk8u40-b24
 719def58024b06fea3028879bbb8ebbf69a4e566 jdk8u40-b25
 a29c20ae925c4157713f4598f8b79d27106f12d7 cpu-20150414
+698dd28ecc785ffc43e3f12266b13e85382c26a8 jdk8u40-b25
+f39b6944ad447269b81e06ca5da9edff9e9e67c8 jdk8u40-b26
+6824e2475e0432e27f9cc51838bc34ea5fbf5113 jdk8u40-b27
+b95f13f05f553309cd74d6ccf8fcedb259c6716c jdk8u45-b00
+41c3c456e326185053f0654be838f4b0bfb38078 jdk8u45-b01
+626fd8c2eec63e2a2dff3839bfe12c0431bf00a4 jdk8u45-b02
+f41aa01b0a043611ee0abcb81a40f7d80085ec27 jdk8u45-b03
+2f586e3c4b6db807ac6036b485b2890ff82f7bfd jdk8u45-b04
+344ff6e45a1e2960ac4a583f63ebfb54cd52e6b4 jdk8u45-b05
+3afa9cc6e8d537ee456b8e12d1abb1da520b5ddc jdk8u45-b06
+5871f3dd9b4a2c4b44e7da2184f4430323e0c04b jdk8u45-b07
+35c7330b68e21d0dfaaedaaf74b794fd10606e9c jdk8u45-b08
+35d8318de0b6d4e68e2e0a04f6e20cafd113ca54 jdk8u45-b09
+a9f5786079202b74b3651e1097c0b2341b2178b9 jdk8u45-b10
+f4822d12204179e6a3e7aaf98991b6171670cbf2 jdk8u45-b11
+dc29108bcbcbfcd49eaa9135368306dc85db73a6 jdk8u45-b12
+efbf340fc7f56e49735111c23cef030413146409 jdk8u45-b13
--- a/make/hotspot_version	Thu Jul 02 03:31:00 2015 +0100
+++ b/make/hotspot_version	Thu Jul 02 03:35:20 2015 +0100
@@ -34,8 +34,8 @@
 HOTSPOT_VM_COPYRIGHT=Copyright 2015
 
 HS_MAJOR_VER=25
-HS_MINOR_VER=45
-HS_BUILD_NUMBER=02
+HS_MINOR_VER=51
+HS_BUILD_NUMBER=03
 
 JDK_MAJOR_VER=1
 JDK_MINOR_VER=8
--- a/src/share/vm/c1/c1_LIRGenerator.cpp	Thu Jul 02 03:31:00 2015 +0100
+++ b/src/share/vm/c1/c1_LIRGenerator.cpp	Thu Jul 02 03:35:20 2015 +0100
@@ -2220,7 +2220,15 @@
   if (log2_scale != 0) {
     // temporary fix (platform dependent code without shift on Intel would be better)
     // TODO: ARM also allows embedded shift in the address
-    __ shift_left(index_op, log2_scale, index_op);
+    LIR_Opr tmp = new_pointer_register();
+    if (TwoOperandLIRForm) {
+      __ move(index_op, tmp);
+      index_op = tmp;
+    }
+    __ shift_left(index_op, log2_scale, tmp);
+    if (!TwoOperandLIRForm) {
+      index_op = tmp;
+    }
   }
 
   LIR_Address* addr = new LIR_Address(base_op, index_op, x->basic_type());
--- a/src/share/vm/classfile/systemDictionary.cpp	Thu Jul 02 03:31:00 2015 +0100
+++ b/src/share/vm/classfile/systemDictionary.cpp	Thu Jul 02 03:35:20 2015 +0100
@@ -2349,9 +2349,6 @@
   assert(!THREAD->is_Compiler_thread(), "");
   Handle method_type =
     SystemDictionary::find_method_handle_type(signature, accessing_klass, CHECK_(empty));
-  if (false) {  // FIXME: Decide if the Java upcall should resolve signatures.
-    method_type = java_lang_String::create_from_symbol(signature, CHECK_(empty));
-  }
 
   KlassHandle  mh_klass = SystemDictionary::MethodHandle_klass();
   int ref_kind = JVM_REF_invokeVirtual;
@@ -2383,6 +2380,24 @@
   return unpack_method_and_appendix(mname, accessing_klass, appendix_box, appendix_result, THREAD);
 }
 
+// Decide if we can globally cache a lookup of this class, to be returned to any client that asks.
+// We must ensure that all class loaders everywhere will reach this class, for any client.
+// This is a safe bet for public classes in java.lang, such as Object and String.
+// We also include public classes in java.lang.invoke, because they appear frequently in system-level method types.
+// Out of an abundance of caution, we do not include any other classes, not even for packages like java.util.
+static bool is_always_visible_class(oop mirror) {
+  Klass* klass = java_lang_Class::as_Klass(mirror);
+  if (klass->oop_is_objArray()) {
+    klass = ObjArrayKlass::cast(klass)->bottom_klass(); // check element type
+  }
+  if (klass->oop_is_typeArray()) {
+    return true; // primitive array
+  }
+  assert(klass->oop_is_instance(), klass->external_name());
+  return klass->is_public() &&
+         (InstanceKlass::cast(klass)->is_same_class_package(SystemDictionary::Object_klass()) ||       // java.lang
+          InstanceKlass::cast(klass)->is_same_class_package(SystemDictionary::MethodHandle_klass()));  // java.lang.invoke
+}
 
 // Ask Java code to find or construct a java.lang.invoke.MethodType for the given
 // signature, as interpreted relative to the given class loader.
@@ -2405,32 +2420,33 @@
   }
 
   Handle class_loader, protection_domain;
-  bool is_on_bcp = true;  // keep this true as long as we can materialize from the boot classloader
+  if (accessing_klass.not_null()) {
+    class_loader      = Handle(THREAD, InstanceKlass::cast(accessing_klass())->class_loader());
+    protection_domain = Handle(THREAD, InstanceKlass::cast(accessing_klass())->protection_domain());
+  }
+  bool can_be_cached = true;
   int npts = ArgumentCount(signature).size();
   objArrayHandle pts = oopFactory::new_objArray(SystemDictionary::Class_klass(), npts, CHECK_(empty));
   int arg = 0;
-  Handle rt;                            // the return type from the signature
+  Handle rt; // the return type from the signature
   ResourceMark rm(THREAD);
   for (SignatureStream ss(signature); !ss.is_done(); ss.next()) {
     oop mirror = NULL;
-    if (is_on_bcp) {
-      // Note:  class_loader & protection_domain are both null at this point.
-      mirror = ss.as_java_mirror(class_loader, protection_domain,
+    if (can_be_cached) {
+      // Use neutral class loader to lookup candidate classes to be placed in the cache.
+      mirror = ss.as_java_mirror(Handle(), Handle(),
                                  SignatureStream::ReturnNull, CHECK_(empty));
-      if (mirror == NULL) {
-        // fall back from BCP to accessing_klass
-        if (accessing_klass.not_null()) {
-          class_loader      = Handle(THREAD, InstanceKlass::cast(accessing_klass())->class_loader());
-          protection_domain = Handle(THREAD, InstanceKlass::cast(accessing_klass())->protection_domain());
-        }
-        is_on_bcp = false;
+      if (mirror == NULL || (ss.is_object() && !is_always_visible_class(mirror))) {
+        // Fall back to accessing_klass context.
+        can_be_cached = false;
       }
     }
-    if (!is_on_bcp) {
+    if (!can_be_cached) {
       // Resolve, throwing a real error if it doesn't work.
       mirror = ss.as_java_mirror(class_loader, protection_domain,
                                  SignatureStream::NCDFError, CHECK_(empty));
     }
+    assert(!oopDesc::is_null(mirror), ss.as_symbol(THREAD)->as_C_string());
     if (ss.at_return_type())
       rt = Handle(THREAD, mirror);
     else
@@ -2462,7 +2478,7 @@
                          &args, CHECK_(empty));
   Handle method_type(THREAD, (oop) result.get_jobject());
 
-  if (is_on_bcp) {
+  if (can_be_cached) {
     // We can cache this MethodType inside the JVM.
     MutexLocker ml(SystemDictionary_lock, THREAD);
     spe = invoke_method_table()->find_entry(index, hash, signature, null_iid);
--- a/src/share/vm/prims/jvmtiClassFileReconstituter.hpp	Thu Jul 02 03:31:00 2015 +0100
+++ b/src/share/vm/prims/jvmtiClassFileReconstituter.hpp	Thu Jul 02 03:35:20 2015 +0100
@@ -68,11 +68,11 @@
 
   ~JvmtiConstantPoolReconstituter() {
     if (_symmap != NULL) {
-      os::free(_symmap, mtClass);
+      delete _symmap;
       _symmap = NULL;
     }
     if (_classmap != NULL) {
-      os::free(_classmap, mtClass);
+      delete _classmap;
       _classmap = NULL;
     }
   }