Merge pull request #2187 from SAP/pr-jdk-27+10

Merge to tag jdk-27+10

Author: RealCLanger

make/devkit/Tools.gmk

@@ -78,7 +78,7 @@ else ifeq ($(BASE_OS), Fedora)
     endif
     BASE_URL := http://fedora.riscv.rocks/repos-dist/f$(BASE_OS_VERSION)/latest/$(ARCH)/Packages/
   else
-    LATEST_ARCHIVED_OS_VERSION := 36
+    LATEST_ARCHIVED_OS_VERSION := 41
     ifeq ($(filter aarch64 armhfp x86_64, $(ARCH)), )
       FEDORA_TYPE := fedora-secondary
     else

src/hotspot/cpu/aarch64/vm_version_aarch64.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2015, 2020, Red Hat Inc. All rights reserved.
  * Copyright 2025 Arm Limited and/or its affiliates.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -664,16 +664,52 @@ void VM_Version::initialize() {
 void VM_Version::insert_features_names(uint64_t features, stringStream& ss) {
   int i = 0;
   ss.join([&]() {
-    while (i < MAX_CPU_FEATURES) {
-      if (supports_feature((VM_Version::Feature_Flag)i)) {
-        return _features_names[i++];
+    const char* str = nullptr;
+    while ((i < MAX_CPU_FEATURES) && (str == nullptr)) {
+      if (supports_feature(features, (VM_Version::Feature_Flag)i)) {
+        str = _features_names[i];
       }
       i += 1;
     }
-    return (const char*)nullptr;
+    return str;
   }, ", ");
 }
 
+void VM_Version::get_cpu_features_name(void* features_buffer, stringStream& ss) {
+  uint64_t features = *(uint64_t*)features_buffer;
+  insert_features_names(features, ss);
+}
+
+void VM_Version::get_missing_features_name(void* features_set1, void* features_set2, stringStream& ss) {
+  uint64_t vm_features_set1 = *(uint64_t*)features_set1;
+  uint64_t vm_features_set2 = *(uint64_t*)features_set2;
+  int i = 0;
+  ss.join([&]() {
+    const char* str = nullptr;
+    while ((i < MAX_CPU_FEATURES) && (str == nullptr)) {
+      Feature_Flag flag = (Feature_Flag)i;
+      if (supports_feature(vm_features_set1, flag) && !supports_feature(vm_features_set2, flag)) {
+        str = _features_names[i];
+      }
+      i += 1;
+    }
+    return str;
+  }, ", ");
+}
+
+int VM_Version::cpu_features_size() {
+  return sizeof(_features);
+}
+
+void VM_Version::store_cpu_features(void* buf) {
+  *(uint64_t*)buf = _features;
+}
+
+bool VM_Version::supports_features(void* features_buffer) {
+  uint64_t features_to_test = *(uint64_t*)features_buffer;
+  return (_features & features_to_test) == features_to_test;
+}
+
 #if defined(LINUX)
 static bool check_info_file(const char* fpath,
                             const char* virt1, VirtualizationType vt1,

src/hotspot/cpu/aarch64/vm_version_aarch64.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, 2020, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -184,6 +184,9 @@ class VM_Version : public Abstract_VM_Version {
   static bool supports_feature(Feature_Flag flag) {
     return (_features & BIT_MASK(flag)) != 0;
   }
+  static bool supports_feature(uint64_t features, Feature_Flag flag) {
+    return (features & BIT_MASK(flag)) != 0;
+  }
 
   static int cpu_family()                     { return _cpu; }
   static int cpu_model()                      { return _model; }
@@ -244,6 +247,20 @@ class VM_Version : public Abstract_VM_Version {
   static bool use_neon_for_vector(int vector_length_in_bytes) {
     return vector_length_in_bytes <= 16;
   }
+
+  static void get_cpu_features_name(void* features_buffer, stringStream& ss);
+
+  // Returns names of features present in features_set1 but not in features_set2
+  static void get_missing_features_name(void* features_set1, void* features_set2, stringStream& ss);
+
+  // Returns number of bytes required to store cpu features representation
+  static int cpu_features_size();
+
+  // Stores cpu features representation in the provided buffer. This representation is arch dependent.
+  // Size of the buffer must be same as returned by cpu_features_size()
+  static void store_cpu_features(void* buf);
+
+  static bool supports_features(void* features_to_test);
 };
 
 #endif // CPU_AARCH64_VM_VERSION_AARCH64_HPP

src/hotspot/cpu/ppc/c2_globals_ppc.hpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2019 SAP SE. All rights reserved.
+ * Copyright (c) 2000, 2026, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2026 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -44,7 +44,7 @@ define_pd_global(intx, CompileThreshold,             10000);
 
 define_pd_global(intx, OnStackReplacePercentage,     140);
 define_pd_global(intx, ConditionalMoveLimit,         3);
-define_pd_global(intx, FreqInlineSize,               175);
+define_pd_global(intx, FreqInlineSize,               325);
 define_pd_global(intx, MinJumpTableSize,             10);
 define_pd_global(intx, InteriorEntryAlignment,       16);
 define_pd_global(size_t, NewSizeThreadIncrease,      ScaleForWordSize(4*K));

src/hotspot/cpu/ppc/methodHandles_ppc.cpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2025 SAP SE. All rights reserved.
+ * Copyright (c) 1997, 2026, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2026 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -49,11 +49,6 @@
 
 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":")
 
-// Workaround for C++ overloading nastiness on '0' for RegisterOrConstant.
-inline static RegisterOrConstant constant(int value) {
-  return RegisterOrConstant(value);
-}
-
 void MethodHandles::load_klass_from_Class(MacroAssembler* _masm, Register klass_reg,
                                           Register temp_reg, Register temp2_reg) {
   if (VerifyMethodHandles) {

src/hotspot/cpu/s390/compiledIC_s390.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2026, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2016, 2019 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -29,17 +29,13 @@
 #include "memory/resourceArea.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/safepoint.hpp"
-#ifdef COMPILER2
-#include "opto/matcher.hpp"
-#endif
 
 // ----------------------------------------------------------------------------
 
 #undef  __
 #define __ masm->
 
 address CompiledDirectCall::emit_to_interp_stub(MacroAssembler *masm, address mark/* = nullptr*/) {
-#ifdef COMPILER2
   // Stub is fixed up when the corresponding call is converted from calling
   // compiled code to calling interpreted code.
   if (mark == nullptr) {
@@ -55,7 +51,7 @@ address CompiledDirectCall::emit_to_interp_stub(MacroAssembler *masm, address ma
   __ relocate(static_stub_Relocation::spec(mark));
 
   AddressLiteral meta = __ allocate_metadata_address(nullptr);
-  bool success = __ load_const_from_toc(as_Register(Matcher::inline_cache_reg_encode()), meta);
+  bool success = __ load_const_from_toc(Z_inline_cache, meta);
 
   __ set_inst_mark();
   AddressLiteral a((address)-1);
@@ -67,10 +63,6 @@ address CompiledDirectCall::emit_to_interp_stub(MacroAssembler *masm, address ma
   __ z_br(Z_R1);
   __ end_a_stub(); // Update current stubs pointer and restore insts_end.
   return stub;
-#else
-  ShouldNotReachHere();
-  return nullptr;
-#endif
 }
 
 #undef __

src/hotspot/cpu/x86/vm_version_x86.cpp

@@ -48,7 +48,7 @@ int VM_Version::_stepping;
 bool VM_Version::_has_intel_jcc_erratum;
 VM_Version::CpuidInfo VM_Version::_cpuid_info = { 0, };
 
-#define DECLARE_CPU_FEATURE_NAME(id, name, bit) name,
+#define DECLARE_CPU_FEATURE_NAME(id, name, bit) XSTR(name),
 const char* VM_Version::_features_names[] = { CPU_FEATURE_FLAGS(DECLARE_CPU_FEATURE_NAME)};
 #undef DECLARE_CPU_FEATURE_NAME
 
@@ -3297,12 +3297,50 @@ bool VM_Version::is_intrinsic_supported(vmIntrinsicID id) {
 void VM_Version::insert_features_names(VM_Version::VM_Features features, stringStream& ss) {
   int i = 0;
   ss.join([&]() {
-    while (i < MAX_CPU_FEATURES) {
-      if (_features.supports_feature((VM_Version::Feature_Flag)i)) {
-        return _features_names[i++];
+    const char* str = nullptr;
+    while ((i < MAX_CPU_FEATURES) && (str == nullptr)) {
+      if (features.supports_feature((VM_Version::Feature_Flag)i)) {
+        str = _features_names[i];
       }
       i += 1;
     }
-    return (const char*)nullptr;
+    return str;
   }, ", ");
 }
+
+void VM_Version::get_cpu_features_name(void* features_buffer, stringStream& ss) {
+  VM_Features* features = (VM_Features*)features_buffer;
+  insert_features_names(*features, ss);
+}
+
+void VM_Version::get_missing_features_name(void* features_set1, void* features_set2, stringStream& ss) {
+  VM_Features* vm_features_set1 = (VM_Features*)features_set1;
+  VM_Features* vm_features_set2 = (VM_Features*)features_set2;
+  int i = 0;
+  ss.join([&]() {
+    const char* str = nullptr;
+    while ((i < MAX_CPU_FEATURES) && (str == nullptr)) {
+      Feature_Flag flag = (Feature_Flag)i;
+      if (vm_features_set1->supports_feature(flag) && !vm_features_set2->supports_feature(flag)) {
+        str = _features_names[i];
+      }
+      i += 1;
+    }
+    return str;
+  }, ", ");
+}
+
+int VM_Version::cpu_features_size() {
+  return sizeof(VM_Features);
+}
+
+void VM_Version::store_cpu_features(void* buf) {
+  VM_Features copy = _features;
+  copy.clear_feature(CPU_HT); // HT does not result in incompatibility of aot code cache
+  memcpy(buf, &copy, sizeof(VM_Features));
+}
+
+bool VM_Version::supports_features(void* features_buffer) {
+  VM_Features* features_to_test = (VM_Features*)features_buffer;
+  return _features.supports_features(features_to_test);
+}