Merge pull request #657 from dragonwell-project/dragonwell_extended-8…

….20.21

Merge remote-tracking branch 'upstream/master' into dragonwell

.jcheck/conf

@@ -1,7 +1,7 @@
 [general]
 project=jdk8u
 jbs=JDK
-version=openjdk8u412
+version=openjdk8u422
 
 [checks]
 error=author,committer,reviewers,merge,issues,executable,symlink,message,hg-tag,whitespace

common/autoconf/generated-configure.sh

@@ -4440,7 +4440,7 @@ VS_TOOLSET_SUPPORTED_2022=true
 #CUSTOM_AUTOCONF_INCLUDE
 
 # Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1704508692
+DATE_WHEN_GENERATED=1705630975
 
 ###############################################################################
 #
@@ -27595,13 +27595,6 @@ fi
       as_fn_error $? "The xcodebuild tool was not found, the Xcode command line tools are required to build on Mac OS X" "$LINENO" 5
     fi
 
-    # Fail-fast: verify we're building on a supported Xcode version
-    XCODE_VERSION=`$XCODEBUILD -version | grep '^Xcode ' | sed 's/Xcode //'`
-    XC_VERSION_PARTS=( ${XCODE_VERSION//./ } )
-    if test "${XC_VERSION_PARTS[0]}" != "6" -a "${XC_VERSION_PARTS[0]}" != "9" -a "${XC_VERSION_PARTS[0]}" != "10" -a "${XC_VERSION_PARTS[0]}" != "11" -a "${XC_VERSION_PARTS[0]}" != "12" ; then
-      as_fn_error $? "Xcode 6, 9-12 is required to build JDK 8, the version found was $XCODE_VERSION. Use --with-xcode-path to specify the location of Xcode or make Xcode active by using xcode-select." "$LINENO" 5
-    fi
-
     # Some versions of Xcode command line tools install gcc and g++ as symlinks to
     # clang and clang++, which will break the build. So handle that here if we need to.
     if test -L "/usr/bin/gcc" -o -L "/usr/bin/g++"; then
@@ -57475,4 +57468,3 @@ fi
       printf "\n"
     fi
   fi
-

common/autoconf/toolchain.m4

@@ -287,13 +287,6 @@ AC_DEFUN_ONCE([TOOLCHAIN_PRE_DETECTION],
       AC_MSG_ERROR([The xcodebuild tool was not found, the Xcode command line tools are required to build on Mac OS X])
     fi
 
-    # Fail-fast: verify we're building on a supported Xcode version
-    XCODE_VERSION=`$XCODEBUILD -version | grep '^Xcode ' | sed 's/Xcode //'`
-    XC_VERSION_PARTS=( ${XCODE_VERSION//./ } )
-    if test "${XC_VERSION_PARTS[[0]]}" != "6" -a "${XC_VERSION_PARTS[[0]]}" != "9" -a "${XC_VERSION_PARTS[[0]]}" != "10" -a "${XC_VERSION_PARTS[[0]]}" != "11" -a "${XC_VERSION_PARTS[[0]]}" != "12" ; then
-      AC_MSG_ERROR([Xcode 6, 9-12 is required to build JDK 8, the version found was $XCODE_VERSION. Use --with-xcode-path to specify the location of Xcode or make Xcode active by using xcode-select.])
-    fi
-
     # Some versions of Xcode command line tools install gcc and g++ as symlinks to
     # clang and clang++, which will break the build. So handle that here if we need to.
     if test -L "/usr/bin/gcc" -o -L "/usr/bin/g++"; then

common/autoconf/version-numbers

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2024, Oracle and/or its affiliates. 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
@@ -26,7 +26,7 @@
 JDK_MAJOR_VERSION=1
 JDK_MINOR_VERSION=8
 JDK_MICRO_VERSION=0
-JDK_UPDATE_VERSION=412
+JDK_UPDATE_VERSION=422
 LAUNCHER_NAME=openjdk
 PRODUCT_NAME=OpenJDK
 PRODUCT_SUFFIX="Runtime Environment"

hotspot/make/windows/makefiles/compile.make

@@ -53,7 +53,7 @@ CXX=cl.exe
 # improving the quality of crash log stack traces involving jvm.dll.
 
 # These are always used in all compiles
-CXX_FLAGS=$(EXTRA_CFLAGS) /nologo /W3 /WX
+CXX_FLAGS=$(EXTRA_CFLAGS) /nologo /W3 /WX /wd4800
 
 # Let's add debug information when Full Debug Symbols is enabled
 !if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"

hotspot/src/os/aix/vm/os_aix.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2012, 2014 SAP AG. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -1452,7 +1452,7 @@ bool os::dll_address_to_library_name(address addr, char* buf,
 
 // Loads .dll/.so and in case of error it checks if .dll/.so was built
 // for the same architecture as Hotspot is running on.
-void *os::dll_load(const char *filename, char *ebuf, int ebuflen) {
+static void* dll_load_library(const char *filename, char *ebuf, int ebuflen) {
 
   if (ebuf && ebuflen > 0) {
     ebuf[0] = '\0';
@@ -1481,6 +1481,27 @@ void *os::dll_load(const char *filename, char *ebuf, int ebuflen) {
   return NULL;
 }
 
+// Load library named <filename>
+// If filename matches <name>.so, and loading fails, repeat with <name>.a.
+void *os::dll_load(const char *filename, char *ebuf, int ebuflen) {
+  void* result = NULL;
+  char* const file_path = strdup(filename);
+  char* const pointer_to_dot = strrchr(file_path, '.');
+  const char old_extension[] = ".so";
+  const char new_extension[] = ".a";
+  STATIC_ASSERT(sizeof(old_extension) >= sizeof(new_extension));
+  // First try to load the existing file.
+  result = dll_load_library(filename, ebuf, ebuflen);
+  // If the load fails,we try to reload by changing the extension to .a for .so files only.
+  // Shared object in .so format dont have braces, hence they get removed for archives with members.
+  if (result == NULL && pointer_to_dot != NULL && strcmp(pointer_to_dot, old_extension) == 0) {
+    snprintf(pointer_to_dot, sizeof(old_extension), "%s", new_extension);
+    result = dll_load_library(file_path, ebuf, ebuflen);
+  }
+  FREE_C_HEAP_ARRAY(char, file_path, mtInternal);
+  return result;
+}
+
 // Glibc-2.0 libdl is not MT safe. If you are building with any glibc,
 // chances are you might want to run the generated bits against glibc-2.0
 // libdl.so, so always use locking for any version of glibc.

hotspot/src/os/linux/vm/os_linux.cpp

@@ -2008,11 +2008,11 @@ void * os::dll_load(const char *filename, char *ebuf, int ebuflen)
     static  Elf32_Half running_arch_code=EM_68K;
   #elif  (defined AARCH64)
     static  Elf32_Half running_arch_code=EM_AARCH64;
-  #elif  (defined LOONGARCH)
+  #elif  (defined LOONGARCH64)
     static  Elf32_Half running_arch_code=EM_LOONGARCH;
   #else
     #error Method os::dll_load requires that one of following is defined:\
-         IA32, AMD64, IA64, __sparc, __powerpc__, ARM, S390, ALPHA, MIPS, MIPSEL, PARISC, M68K, AARCH64, LOONGARCH
+         IA32, AMD64, IA64, __sparc, __powerpc__, ARM, S390, ALPHA, MIPS, MIPSEL, PARISC, M68K, AARCH64, LOONGARCH64
   #endif
 
   // Identify compatability class for VM's architecture and library's architecture

hotspot/src/share/vm/c1/c1_RangeCheckElimination.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2024, Oracle and/or its affiliates. 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
@@ -441,14 +441,14 @@ void RangeCheckEliminator::in_block_motion(BlockBegin *block, AccessIndexedList
 
           if (c) {
             jint value = c->type()->as_IntConstant()->value();
-            if (value != min_jint) {
-              if (ao->op() == Bytecodes::_isub) {
-                value = -value;
-              }
+            if (ao->op() == Bytecodes::_iadd) {
               base = java_add(base, value);
-              last_integer = base;
-              last_instruction = other;
+            } else {
+              assert(ao->op() == Bytecodes::_isub, "unexpected bytecode");
+              base = java_subtract(base, value);
             }
+            last_integer = base;
+            last_instruction = other;
             index = other;
           } else {
             break;

hotspot/src/share/vm/c1/c1_Runtime1.cpp

@@ -58,6 +58,7 @@
 #include "runtime/vframeArray.hpp"
 #include "utilities/copy.hpp"
 #include "utilities/events.hpp"
+#include "utilities/exceptions.hpp"
 
 
 // Implementation of StubAssembler
@@ -537,8 +538,9 @@ JRT_ENTRY_NO_ASYNC(static address, exception_handler_for_pc_helper(JavaThread* t
     if (TraceExceptions) {
       ttyLocker ttyl;
       ResourceMark rm;
-      tty->print_cr("Exception <%s> (" INTPTR_FORMAT ") thrown in compiled method <%s> at PC " INTPTR_FORMAT " for thread " INTPTR_FORMAT "",
-                    exception->print_value_string(), p2i((address)exception()), nm->method()->print_value_string(), p2i(pc), p2i(thread));
+      tty->print_cr("Exception <%.*s> (" INTPTR_FORMAT ") thrown in compiled method <%s> at PC " INTPTR_FORMAT " for thread " INTPTR_FORMAT "",
+                    MAX_LEN, exception->print_value_string(),
+                    p2i((address)exception()), nm->method()->print_value_string(), p2i(pc), p2i(thread));
     }
     // for AbortVMOnException flag
     NOT_PRODUCT(Exceptions::debug_check_abort(exception));

hotspot/src/share/vm/classfile/symbolTable.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2024, Oracle and/or its affiliates. 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
@@ -239,7 +239,23 @@ unsigned int SymbolTable::hash_symbol(const char* s, int len) {
 // entries in the symbol table during normal execution (only during
 // safepoints).
 
+// Symbols should represent entities from the constant pool that are
+// limited to <64K in length, but usage errors creep in allowing Symbols
+// to be used for arbitrary strings. For debug builds we will assert if
+// a string is too long, whereas product builds will truncate it.
+static int check_length(const char* name, int len) {
+  assert(len <= Symbol::max_length(),
+         "String length exceeds the maximum Symbol length");
+  if (len > Symbol::max_length()) {
+    warning("A string \"%.80s ... %.80s\" exceeds the maximum Symbol "
+            "length of %d and has been truncated", name, (name + len - 80), Symbol::max_length());
+    len = Symbol::max_length();
+  }
+  return len;
+}
+
 Symbol* SymbolTable::lookup(const char* name, int len, TRAPS) {
+  len = check_length(name, len);
   unsigned int hashValue = hash_symbol(name, len);
   int index = the_table()->hash_to_index(hashValue);
 
@@ -370,6 +386,7 @@ void SymbolTable::add(ClassLoaderData* loader_data, constantPoolHandle cp,
     for (int i=0; i<names_count; i++) {
       int index = table->hash_to_index(hashValues[i]);
       bool c_heap = !loader_data->is_the_null_class_loader_data();
+      assert(lengths[i] <= Symbol::max_length(), "must be - these come from the constant pool");
       Symbol* sym = table->basic_add(index, (u1*)names[i], lengths[i], hashValues[i], c_heap, CHECK);
       cp->symbol_at_put(cp_indices[i], sym);
     }
@@ -378,7 +395,8 @@ void SymbolTable::add(ClassLoaderData* loader_data, constantPoolHandle cp,
 
 Symbol* SymbolTable::new_permanent_symbol(const char* name, TRAPS) {
   unsigned int hash;
-  Symbol* result = SymbolTable::lookup_only((char*)name, (int)strlen(name), hash);
+  int len = check_length(name, (int)strlen(name));
+  Symbol* result = SymbolTable::lookup_only((char*)name, len, hash);
   if (result != NULL) {
     return result;
   }
@@ -387,13 +405,14 @@ Symbol* SymbolTable::new_permanent_symbol(const char* name, TRAPS) {
 
   SymbolTable* table = the_table();
   int index = table->hash_to_index(hash);
-  return table->basic_add(index, (u1*)name, (int)strlen(name), hash, false, THREAD);
+  return table->basic_add(index, (u1*)name, len, hash, false, THREAD);
 }
 
 Symbol* SymbolTable::basic_add(int index_arg, u1 *name, int len,
                                unsigned int hashValue_arg, bool c_heap, TRAPS) {
   assert(!Universe::heap()->is_in_reserved(name),
          "proposed name of symbol must be stable");
+  assert(len <= Symbol::max_length(), "caller should have ensured this");
 
   // Don't allow symbols to be created which cannot fit in a Symbol*.
   if (len > Symbol::max_length()) {

hotspot/src/share/vm/compiler/compilerOracle.cpp

@@ -493,7 +493,8 @@ static MethodMatcher::Mode check_mode(char name[], const char*& error_msg) {
   int match = MethodMatcher::Exact;
   while (name[0] == '*') {
     match |= MethodMatcher::Suffix;
-    strcpy(name, name + 1);
+    // Copy remaining string plus NUL to the beginning
+    memmove(name, name + 1, strlen(name + 1) + 1);
   }
 
   if (strcmp(name, "*") == 0) return MethodMatcher::Any;

hotspot/src/share/vm/interpreter/bytecodeInterpreter.cpp

@@ -2854,7 +2854,9 @@ BytecodeInterpreter::run(interpreterState istate) {
       if (TraceExceptions) {
         ttyLocker ttyl;
         ResourceMark rm;
-        tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), p2i(except_oop()));
+        tty->print_cr("Exception <%.*s> (" INTPTR_FORMAT ")",
+                      MAX_LEN, except_oop->print_value_string(),
+                      p2i(except_oop()));
         tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string());
         tty->print_cr(" at bci %d, continuing at %d for thread " INTPTR_FORMAT,
                       (int)(istate->bcp() - METHOD->code_base()),
@@ -2870,7 +2872,9 @@ BytecodeInterpreter::run(interpreterState istate) {
     if (TraceExceptions) {
       ttyLocker ttyl;
       ResourceMark rm;
-      tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), p2i(except_oop()));
+      tty->print_cr("Exception <%.*s> (" INTPTR_FORMAT ")",
+                    MAX_LEN, except_oop->print_value_string(),
+                    p2i(except_oop()));
       tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string());
       tty->print_cr(" at bci %d, unwinding for thread " INTPTR_FORMAT,
                     (int)(istate->bcp() - METHOD->code_base()),

hotspot/src/share/vm/interpreter/interpreterRuntime.cpp

@@ -56,6 +56,7 @@
 #include "runtime/synchronizer.hpp"
 #include "runtime/threadCritical.hpp"
 #include "utilities/events.hpp"
+#include "utilities/exceptions.hpp"
 #ifdef TARGET_ARCH_x86
 # include "vm_version_x86.hpp"
 #endif
@@ -454,12 +455,13 @@ IRT_ENTRY(address, InterpreterRuntime::exception_handler_for_exception(JavaThrea
       const char* detail_message = java_lang_Throwable::message_as_utf8(h_exception());
       ttyLocker ttyl;  // Lock after getting the detail message
       if (detail_message != NULL) {
-        tty->print_cr("Exception <%s: %s> (" INTPTR_FORMAT ")",
-                      h_exception->print_value_string(), detail_message,
+        tty->print_cr("Exception <%.*s: %.*s> (" INTPTR_FORMAT ")",
+                      MAX_LEN, h_exception->print_value_string(),
+                      MAX_LEN, detail_message,
                       (address)h_exception());
       } else {
-        tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")",
-                      h_exception->print_value_string(),
+        tty->print_cr("Exception <%.*s> (" INTPTR_FORMAT ")",
+                      MAX_LEN, h_exception->print_value_string(),
                       (address)h_exception());
       }
       tty->print_cr(" thrown in interpreter method <%s>", h_method->print_value_string());

hotspot/src/share/vm/oops/symbol.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2024, Oracle and/or its affiliates. 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
@@ -33,6 +33,7 @@
 #include "memory/resourceArea.hpp"
 
 Symbol::Symbol(const u1* name, int length, int refcount) {
+  assert(length <= max_length(), "SymbolTable should have caught this!");
   _refcount = refcount;
   _length = length;
   _identity_hash = os::random();

hotspot/src/share/vm/oops/symbol.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2024, Oracle and/or its affiliates. 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
@@ -135,6 +135,7 @@ class Symbol : private SymbolBase {
     _body[index] = value;
   }
 
+  // Constructor is private for use only by SymbolTable.
   Symbol(const u1* name, int length, int refcount);
   void* operator new(size_t size, int len, TRAPS) throw();
   void* operator new(size_t size, int len, Arena* arena, TRAPS) throw();