8324799: Use correct extension for C++ test headers

Reviewed-by: jwaters, gli, coleenp, lmesnik

make/Hsdis.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2020, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2020, 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
@@ -38,7 +38,7 @@ HSDIS_OUTPUT_DIR := $(SUPPORT_OUTPUTDIR)/hsdis
 REAL_HSDIS_NAME := hsdis-$(OPENJDK_TARGET_CPU_LEGACY_LIB)$(SHARED_LIBRARY_SUFFIX)
 BUILT_HSDIS_LIB := $(HSDIS_OUTPUT_DIR)/$(REAL_HSDIS_NAME)
 
-HSDIS_TOOLCHAIN := TOOLCHAIN_DEFAULT
+HSDIS_LINK_TYPE := C
 HSDIS_TOOLCHAIN_CFLAGS := $(CFLAGS_JDKLIB)
 HSDIS_TOOLCHAIN_LDFLAGS := $(LDFLAGS_JDKLIB)
 
@@ -59,8 +59,8 @@ endif
 
 ifeq ($(HSDIS_BACKEND), llvm)
   # Use C++ instead of C
+  HSDIS_LINK_TYPE := C++
   HSDIS_TOOLCHAIN_CFLAGS := $(CXXFLAGS_JDKLIB)
-  HSDIS_TOOLCHAIN := TOOLCHAIN_LINK_CXX
 
   ifeq ($(call isTargetOs, linux), true)
     LLVM_OS := pc-linux-gnu
@@ -91,14 +91,11 @@ ifeq ($(HSDIS_BACKEND), binutils)
       endif
     endif
 
-    $(eval $(call DefineNativeToolchain, TOOLCHAIN_MINGW, \
+    BUILD_HSDIS_CC := $(MINGW_BASE)-gcc
-        CC := $(MINGW_BASE)-gcc, \
+    BUILD_HSDIS_LD := $(MINGW_BASE)-ld
-        LD := $(MINGW_BASE)-ld, \
+    BUILD_HSDIS_OBJCOPY := $(MINGW_BASE)-objcopy
-        OBJCOPY := $(MINGW_BASE)-objcopy, \
+    BUILD_HSDIS_SYSROOT_CFLAGS := --sysroot=$(MINGW_SYSROOT)
-        RC := $(RC), \
+    BUILD_HSDIS_SYSROOT_LDFLAGS := --sysroot=$(MINGW_SYSROOT)
-        SYSROOT_CFLAGS := --sysroot=$(MINGW_SYSROOT), \
-        SYSROOT_LDFLAGS := --sysroot=$(MINGW_SYSROOT), \
-    ))
 
     MINGW_SYSROOT_LIB_PATH := $(MINGW_SYSROOT)/mingw/lib
     ifeq ($(wildcard $(MINGW_SYSROOT_LIB_PATH)), )
@@ -122,8 +119,8 @@ ifeq ($(HSDIS_BACKEND), binutils)
 
     TOOLCHAIN_TYPE := gcc
     OPENJDK_TARGET_OS := linux
+    OPENJDK_TARGET_OS_TYPE := unix
     CC_OUT_OPTION := -o$(SPACE)
-    LD_OUT_OPTION := -o$(SPACE)
     GENDEPS_FLAGS := -MMD -MF
     CFLAGS_DEBUG_SYMBOLS := -g
     DISABLED_WARNINGS :=
@@ -131,7 +128,6 @@ ifeq ($(HSDIS_BACKEND), binutils)
     CFLAGS_WARNINGS_ARE_ERRORS := -Werror
     SHARED_LIBRARY_FLAGS := -shared
 
-    HSDIS_TOOLCHAIN := TOOLCHAIN_MINGW
     HSDIS_TOOLCHAIN_CFLAGS :=
     HSDIS_TOOLCHAIN_LDFLAGS := -L$(MINGW_GCC_LIB_PATH) -L$(MINGW_SYSROOT_LIB_PATH)
     MINGW_DLLCRT := $(MINGW_SYSROOT_LIB_PATH)/dllcrt2.o
@@ -144,9 +140,9 @@ endif
 
 $(eval $(call SetupJdkLibrary, BUILD_HSDIS, \
     NAME := hsdis, \
+    LINK_TYPE := $(HSDIS_LINK_TYPE), \
     SRC := $(TOPDIR)/src/utils/hsdis/$(HSDIS_BACKEND), \
     EXTRA_HEADER_DIRS := $(TOPDIR)/src/utils/hsdis, \
-    TOOLCHAIN := $(HSDIS_TOOLCHAIN), \
     OUTPUT_DIR := $(HSDIS_OUTPUT_DIR), \
     OBJECT_DIR := $(HSDIS_OUTPUT_DIR), \
     DISABLED_WARNINGS_gcc := undef format-nonliteral sign-compare, \

make/InitSupport.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2022, 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
@@ -427,8 +427,9 @@ else # $(HAS_SPEC)=true
 
   # Cleanup after a compare build
   define CleanupCompareBuild
-        # If running with a COMPARE_BUILD patch, reverse-apply it
+        # If running with a COMPARE_BUILD patch, reverse-apply it, but continue
-	$(if $(COMPARE_BUILD_PATCH), cd $(topdir) && $(PATCH) -R -p1 < $(COMPARE_BUILD_PATCH))
+        # even if that fails (can happen with removed files).
+	$(if $(COMPARE_BUILD_PATCH), cd $(topdir) && $(PATCH) -R -p1 < $(COMPARE_BUILD_PATCH) || true)
         # Move this build away and restore the original build
 	$(MKDIR) -p $(topdir)/build/compare-build
 	$(MV) $(OUTPUTDIR) $(COMPARE_BUILD_OUTPUTDIR)

make/autoconf/buildjdk-spec.gmk.template

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2015, 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
@@ -40,6 +40,7 @@ LDCXX := @BUILD_LDCXX@
 AS := @BUILD_AS@
 NM := @BUILD_NM@
 AR := @BUILD_AR@
+LIB := @BUILD_LIB@
 OBJCOPY := @BUILD_OBJCOPY@
 STRIP := @BUILD_STRIP@
 SYSROOT_CFLAGS := @BUILD_SYSROOT_CFLAGS@

make/autoconf/flags-cflags.m4

@@ -40,7 +40,6 @@ AC_DEFUN([FLAGS_SETUP_SHARED_LIBS],
     SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1'
     SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
     SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
-    SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
 
   elif test "x$TOOLCHAIN_TYPE" = xclang; then
     if test "x$OPENJDK_TARGET_OS" = xmacosx; then
@@ -49,7 +48,6 @@ AC_DEFUN([FLAGS_SETUP_SHARED_LIBS],
       SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)'
       SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
       SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
-      SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1'
 
     elif test "x$OPENJDK_TARGET_OS" = xaix; then
       # Linking is different on aix
@@ -57,14 +55,12 @@ AC_DEFUN([FLAGS_SETUP_SHARED_LIBS],
       SET_EXECUTABLE_ORIGIN=""
       SET_SHARED_LIBRARY_ORIGIN=''
       SET_SHARED_LIBRARY_NAME=''
-      SET_SHARED_LIBRARY_MAPFILE=''
 
     else
       # Default works for linux, might work on other platforms as well.
       SHARED_LIBRARY_FLAGS='-shared'
       SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1'
       SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
-      SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
 
       # arm specific settings
       if test "x$OPENJDK_TARGET_CPU" = "xarm"; then
@@ -80,20 +76,17 @@ AC_DEFUN([FLAGS_SETUP_SHARED_LIBS],
     SET_EXECUTABLE_ORIGIN=""
     SET_SHARED_LIBRARY_ORIGIN=''
     SET_SHARED_LIBRARY_NAME=''
-    SET_SHARED_LIBRARY_MAPFILE=''
 
   elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
     SHARED_LIBRARY_FLAGS="-dll"
     SET_EXECUTABLE_ORIGIN=''
     SET_SHARED_LIBRARY_ORIGIN=''
     SET_SHARED_LIBRARY_NAME=''
-    SET_SHARED_LIBRARY_MAPFILE='-def:[$]1'
   fi
 
   AC_SUBST(SET_EXECUTABLE_ORIGIN)
   AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
   AC_SUBST(SET_SHARED_LIBRARY_NAME)
-  AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
   AC_SUBST(SHARED_LIBRARY_FLAGS)
 ])
 
@@ -122,6 +115,11 @@ AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS],
             # Add debug prefix map gcc system include paths, as they cause
             # non-deterministic debug paths depending on gcc path location.
             DEBUG_PREFIX_MAP_GCC_INCLUDE_PATHS
+
+            # Add debug prefix map for OUTPUTDIR to handle the scenario when
+            # it is not located within WORKSPACE_ROOT
+            outputdir_slash="${OUTPUTDIR%/}/"
+            DEBUG_PREFIX_CFLAGS="$DEBUG_PREFIX_CFLAGS -fdebug-prefix-map=${outputdir_slash}="
         ]
       )
     fi

make/autoconf/flags-ldflags.m4

@@ -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
@@ -93,7 +93,7 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_HELPER],
     BASIC_LDFLAGS_JVM_ONLY="-Wl,-lC_r -bbigtoc"
 
   elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
-    BASIC_LDFLAGS="-nologo -opt:ref"
+    BASIC_LDFLAGS="-opt:ref"
     BASIC_LDFLAGS_JDK_ONLY="-incremental:no"
     BASIC_LDFLAGS_JVM_ONLY="-opt:icf,8 -subsystem:windows"
   fi

make/autoconf/flags-other.m4

@@ -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
@@ -33,9 +33,6 @@ AC_DEFUN([FLAGS_SETUP_ARFLAGS],
   # FIXME: figure out if we should select AR flags depending on OS or toolchain.
   if test "x$OPENJDK_TARGET_OS" = xaix; then
     ARFLAGS="-X64"
-  elif test "x$OPENJDK_TARGET_OS" = xwindows; then
-    # lib.exe is used as AR to create static libraries.
-    ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"
   else
     ARFLAGS=""
   fi
@@ -43,6 +40,18 @@ AC_DEFUN([FLAGS_SETUP_ARFLAGS],
   AC_SUBST(ARFLAGS)
 ])
 
+AC_DEFUN([FLAGS_SETUP_LIBFLAGS],
+[
+  # LIB is used to create static libraries on Windows
+  if test "x$OPENJDK_TARGET_OS" = xwindows; then
+    LIBFLAGS="-nodefaultlib:msvcrt"
+  else
+    LIBFLAGS=""
+  fi
+
+  AC_SUBST(LIBFLAGS)
+])
+
 AC_DEFUN([FLAGS_SETUP_STRIPFLAGS],
 [
   ## Setup strip.

make/autoconf/flags.m4

@@ -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
@@ -364,24 +364,12 @@ AC_DEFUN([FLAGS_SETUP_TOOLCHAIN_CONTROL],
 
   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
     CC_OUT_OPTION=-Fo
-    LD_OUT_OPTION=-out:
-    AR_OUT_OPTION=-out:
   else
     # The option used to specify the target .o,.a or .so file.
     # When compiling, how to specify the to be created object file.
     CC_OUT_OPTION='-o$(SPACE)'
-    # When linking, how to specify the output
-    LD_OUT_OPTION='-o$(SPACE)'
-    # When archiving, how to specify the destination static archive.
-    if test "x$OPENJDK_TARGET_OS" = xmacosx; then
-      AR_OUT_OPTION='-r -cs$(SPACE)'
-    else
-      AR_OUT_OPTION='-rcs$(SPACE)'
-    fi
   fi
   AC_SUBST(CC_OUT_OPTION)
-  AC_SUBST(LD_OUT_OPTION)
-  AC_SUBST(AR_OUT_OPTION)
 
   # Generate make dependency files
   if test "x$TOOLCHAIN_TYPE" = xgcc; then
@@ -423,6 +411,7 @@ AC_DEFUN([FLAGS_SETUP_FLAGS],
   FLAGS_SETUP_LDFLAGS
 
   FLAGS_SETUP_ARFLAGS
+  FLAGS_SETUP_LIBFLAGS
   FLAGS_SETUP_STRIPFLAGS
   FLAGS_SETUP_RCFLAGS
   FLAGS_SETUP_NMFLAGS

make/autoconf/spec.gmk.template

@@ -498,8 +498,6 @@ COMPILER_COMMAND_FILE_FLAG := @COMPILER_COMMAND_FILE_FLAG@
 COMPILER_BINDCMD_FILE_FLAG := @COMPILER_BINDCMD_FILE_FLAG@
 
 CC_OUT_OPTION := @CC_OUT_OPTION@
-LD_OUT_OPTION := @LD_OUT_OPTION@
-AR_OUT_OPTION := @AR_OUT_OPTION@
 
 # Flags used for overriding the default opt setting for a C/C++ source file.
 C_O_FLAG_HIGHEST_JVM := @C_O_FLAG_HIGHEST_JVM@
@@ -604,10 +602,10 @@ BUILD_SYSROOT_LDFLAGS := @BUILD_SYSROOT_LDFLAGS@
 
 AS := @AS@
 
-# AR is used to create a static library (is ar in unix, lib.exe in windows)
 AR := @AR@
 ARFLAGS := @ARFLAGS@
-
+LIB := @LIB@
+LIBFLAGS := @LIBFLAGS@
 NM := @NM@
 NMFLAGS := @NMFLAGS@
 STRIP := @STRIP@
@@ -619,10 +617,6 @@ INSTALL_NAME_TOOL := @INSTALL_NAME_TOOL@
 METAL := @METAL@
 METALLIB := @METALLIB@
 
-# Options to linker to specify a mapfile.
-# (Note absence of := assignment, because we do not want to evaluate the macro body here)
-SET_SHARED_LIBRARY_MAPFILE = @SET_SHARED_LIBRARY_MAPFILE@
-
 #
 # Options for generating debug symbols
 COMPILE_WITH_DEBUG_SYMBOLS := @COMPILE_WITH_DEBUG_SYMBOLS@

make/autoconf/toolchain.m4

@@ -732,11 +732,10 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
   AC_SUBST(AS)
 
   #
-  # Setup the archiver (AR)
+  # Setup tools for creating static libraries (AR/LIB)
   #
   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
-    # The corresponding ar tool is lib.exe (used to create static libraries)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(LIB, lib)
-    UTIL_LOOKUP_TOOLCHAIN_PROGS(AR, lib)
   elif test "x$TOOLCHAIN_TYPE" = xgcc; then
     UTIL_LOOKUP_TOOLCHAIN_PROGS(AR, ar gcc-ar)
   else

make/common/NativeCompilation.gmk

@@ -40,8 +40,8 @@ include native/CompileFile.gmk
 include native/DebugSymbols.gmk
 include native/Flags.gmk
 include native/Link.gmk
+include native/LinkMicrosoft.gmk
 include native/Paths.gmk
-include native/ToolchainDefinitions.gmk
 
 ################################################################################
 # Setup make rules for creating a native binary (a shared library or an
@@ -54,7 +54,8 @@ include native/ToolchainDefinitions.gmk
 #   NAME The base name for the resulting binary, excluding decorations (like *.exe)
 #   TYPE Type of binary (EXECUTABLE, LIBRARY or STATIC_LIBRARY). Default is LIBRARY.
 #   SUFFIX Override the default suffix for the output file
-#   TOOLCHAIN Name of toolchain setup to use. Defaults to TOOLCHAIN_DEFAULT.
+#   TARGET_TYPE The type to target, BUILD or TARGET. Defaults to TARGET.
+#   LINK_TYPE The language to use for the linker, C or C++. Defaults to C.
 #   SRC one or more directory roots to scan for C/C++ files.
 #   CFLAGS the compiler flags to be used, used both for C and C++.
 #   CXXFLAGS the compiler flags to be used for c++, if set overrides CFLAGS.
@@ -72,7 +73,8 @@ include native/ToolchainDefinitions.gmk
 #       used both for C and C++.
 #   LIBS_<toolchain>_<OS> the libraries to link to for the specified target
 #       OS and toolchain, used both for C and C++.
-#   ARFLAGS the archiver flags to be used
+#   ARFLAGS the archiver flags to be used on unix platforms
+#   LIBFLAGS the flags for the lib tool used on windows
 #   OBJECT_DIR the directory where we store the object files
 #   OUTPUT_DIR the directory where the resulting binary is put
 #   SYMBOLS_DIR the directory where the debug symbols are put, defaults to OUTPUT_DIR
@@ -87,11 +89,18 @@ include native/ToolchainDefinitions.gmk
 #   VERSIONINFO_RESOURCE Input file for RC. Setting this implies that RC will be run
 #   RCFLAGS flags for RC.
 #   EMBED_MANIFEST if true, embed manifest on Windows.
-#   MAPFILE mapfile
+#   CC the C compiler to use
-#   USE_MAPFILE_FOR_SYMBOLS if true and this is a STATIC_BUILD, just copy the
+#   CXX the C++ compiler to use
-#       mapfile for the output symbols file
+#   LD the Linker to use
-#   CC the compiler to use, default is $(CC)
+#   AR the static linker to use
-#   LD the linker to use, default is $(LD)
+#   LIB the Windows lib tool to use for creating static libraries
+#   AS the assembler to use
+#   MT the Windows MT tool to use
+#   RC the Windows RC tool to use
+#   OBJCOPY the objcopy tool for debug symbol handling
+#   STRIP the tool to use for stripping debug symbols
+#   SYSROOT_CFLAGS the compiler flags for using the specific sysroot
+#   SYSROOT_LDFLAGS the linker flags for using the specific sysroot
 #   OPTIMIZATION sets optimization level to NONE, LOW, HIGH, HIGHEST, HIGHEST_JVM, SIZE
 #   DISABLED_WARNINGS_<toolchain> Disable the given warnings for the specified toolchain
 #   DISABLED_WARNINGS_<toolchain>_<OS> Disable the given warnings for the specified
@@ -198,12 +207,18 @@ define SetupNativeCompilationBody
 
   # Prepare for linking
   $$(eval $$(call SetupLinkerFlags,$1))
-  $$(eval $$(call SetupLinking,$1))
+  ifneq ($(TOOLCHAIN_TYPE), microsoft)
+    $$(eval $$(call SetupLinking,$1))
+  endif
 
   $$(eval $$(call SetupObjectFileList,$1))
 
   # Link the individually compiled files into a single unit
-  $$(eval $$(call CreateLinkedResult,$1))
+  ifneq ($(TOOLCHAIN_TYPE), microsoft)
+    $$(eval $$(call CreateLinkedResult,$1))
+  else
+    $$(eval $$(call CreateLinkedResultMicrosoft,$1))
+  endif
 
   ifeq ($(GENERATE_COMPILE_COMMANDS_ONLY), true)
     # Override all targets (this is a hack)
@@ -284,6 +299,44 @@ define SetupBasicVariables
   $1_SAFE_NAME := $$(strip $$(subst /,_, $1))
 endef
 
+################################################################################
+# Setup the toolchain variables
+define SetupToolchain
+  ifeq ($$($1_TARGET_TYPE), BUILD)
+    $$(call SetIfEmpty, $1_CC, $(BUILD_CC))
+    $$(call SetIfEmpty, $1_CXX, $(BUILD_CXX))
+    $$(call SetIfEmpty, $1_AR, $(BUILD_AR))
+    $$(call SetIfEmpty, $1_LIB, $(BUILD_LIB))
+    $$(call SetIfEmpty, $1_AS, $(BUILD_AS))
+    $$(call SetIfEmpty, $1_OBJCOPY, $(BUILD_OBJCOPY))
+    $$(call SetIfEmpty, $1_STRIP, $(BUILD_STRIP))
+    $$(call SetIfEmpty, $1_SYSROOT_CFLAGS, $(BUILD_SYSROOT_CFLAGS))
+    $$(call SetIfEmpty, $1_SYSROOT_LDFLAGS, $(BUILD_SYSROOT_LDFLAGS))
+    ifeq ($$($1_LINK_TYPE), C++)
+      $$(call SetIfEmpty, $1_LD, $(BUILD_LDCXX))
+    else
+      $$(call SetIfEmpty, $1_LD, $(BUILD_LD))
+    endif
+  else
+    $$(call SetIfEmpty, $1_CC, $(CC))
+    $$(call SetIfEmpty, $1_CXX, $(CXX))
+    $$(call SetIfEmpty, $1_AR, $(AR))
+    $$(call SetIfEmpty, $1_LIB, $(LIB))
+    $$(call SetIfEmpty, $1_AS, $(AS))
+    $$(call SetIfEmpty, $1_MT, $(MT))
+    $$(call SetIfEmpty, $1_RC, $(RC))
+    $$(call SetIfEmpty, $1_OBJCOPY, $(OBJCOPY))
+    $$(call SetIfEmpty, $1_STRIP, $(STRIP))
+    $$(call SetIfEmpty, $1_SYSROOT_CFLAGS, $(SYSROOT_CFLAGS))
+    $$(call SetIfEmpty, $1_SYSROOT_LDFLAGS, $(SYSROOT_LDFLAGS))
+    ifeq ($$($1_LINK_TYPE), C++)
+      $$(call SetIfEmpty, $1_LD, $(LDCXX))
+    else
+      $$(call SetIfEmpty, $1_LD, $(LD))
+    endif
+  endif
+endef
+
 ################################################################################
 # Setup machinery needed by the build system
 define SetupBuildSystemSupport

make/common/TestFilesCompilation.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2015, 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
@@ -103,6 +103,7 @@ define SetupTestFilesCompilationBody
     $$(eval $$(call SetupNativeCompilation, BUILD_TEST_$$(name), \
         NAME := $$(unprefixed_name), \
         TYPE := $$($1_COMPILATION_TYPE), \
+        LINK_TYPE := $(if $$(filter %.cpp, $$(file)), C++, C), \
         EXTRA_FILES := $$(file) $$($1_EXTRA_FILES), \
         OBJECT_DIR := $$($1_OUTPUT_DIR)/support/$$(name), \
         OUTPUT_DIR := $$($1_OUTPUT_DIR)/$$($1_OUTPUT_SUBDIR), \
@@ -113,7 +114,6 @@ define SetupTestFilesCompilationBody
         DISABLED_WARNINGS_clang := undef format-nonliteral \
             missing-field-initializers sometimes-uninitialized, \
         LIBS := $$($1_LIBS_$$(name)), \
-        TOOLCHAIN := $(if $$(filter %.cpp, $$(file)), TOOLCHAIN_LINK_CXX, TOOLCHAIN_DEFAULT), \
         OPTIMIZATION := $$(if $$($1_OPTIMIZATION_$$(name)),$$($1_OPTIMIZATION_$$(name)),LOW), \
         COPY_DEBUG_SYMBOLS := $$($1_COPY_DEBUG_SYMBOLS), \
         STRIP_SYMBOLS := $$(if $$($1_STRIP_SYMBOLS_$$(name)),$$($1_STRIP_SYMBOLS_$$(name)),false), \

make/common/native/Link.gmk

@@ -27,7 +27,6 @@
 # This file contains functionality related to linking a native binary;
 # creating either a dynamic library, a static library or an executable.
 
-
 ################################################################################
 # GetEntitlementsFile
 # Find entitlements file for executable when signing on macosx. If no
@@ -49,24 +48,15 @@ GetEntitlementsFile = \
 
 ################################################################################
 define SetupLinking
-  ifneq ($(DISABLE_MAPFILES), true)
-    $1_REAL_MAPFILE := $$($1_MAPFILE)
-  endif
-
-  ifneq ($$($1_REAL_MAPFILE), )
-    $1_EXTRA_LDFLAGS += $(call SET_SHARED_LIBRARY_MAPFILE,$$($1_REAL_MAPFILE))
-  endif
-
   # Unless specifically set, stripping should only happen if symbols are also
   # being copied.
   $$(call SetIfEmpty, $1_STRIP_SYMBOLS, $$($1_COPY_DEBUG_SYMBOLS))
 
   ifneq ($$($1_STRIP_SYMBOLS), false)
-    ifneq ($$($1_STRIP), )
+    # Default to using the global STRIPFLAGS. Allow for overriding with an
-      # Default to using the global STRIPFLAGS. Allow for overriding with an empty value
+    # empty value
-      $1_STRIPFLAGS ?= $(STRIPFLAGS)
+    $1_STRIPFLAGS ?= $(STRIPFLAGS)
-      $1_STRIP_CMD := $$($1_STRIP) $$($1_STRIPFLAGS) $$($1_TARGET)
+    $1_STRIP_CMD := $$($1_STRIP) $$($1_STRIPFLAGS) $$($1_TARGET)
-    endif
   endif
 endef
 
@@ -81,7 +71,7 @@ endef
 
 ################################################################################
 define CreateStaticLibrary
-  # Include partial linking when building the static library with clang on linux.
+  # Include partial linking when building the static library with clang on linux
   ifeq ($(call isTargetOs, linux), true)
     ifneq ($(findstring $(TOOLCHAIN_TYPE), clang), )
       $1_ENABLE_PARTIAL_LINKING := true
@@ -96,14 +86,7 @@ define CreateStaticLibrary
   $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, \
       $$($1_OBJECT_DIR)/$$($1_NOSUFFIX).vardeps)
 
-  # Generating a static library, ie object file archive.
+  $1_TARGET_DEPS := $$($1_ALL_OBJS) $$($1_VARDEPS_FILE)
-  ifeq ($(STATIC_BUILD), true)
-    ifeq ($$($1_USE_MAPFILE_FOR_SYMBOLS), true)
-      STATIC_MAPFILE_DEP := $$($1_MAPFILE)
-    endif
-  endif
-
-  $1_TARGET_DEPS := $$($1_ALL_OBJS) $$($1_RES) $$($1_VARDEPS_FILE) $$(STATIC_MAPFILE_DEP)
 
   $1_AR_OBJ_ARG := $$($1_LD_OBJ_ARG)
   # With clang on linux, partial linking is enabled and 'AR' takes the output
@@ -128,36 +111,19 @@ define CreateStaticLibrary
 	  $$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_partial_link, \
 	    $(if $$($1_LINK_OBJS_RELATIVE), $$(CD) $$(OUTPUTDIR) ; ) \
 	      $$($1_LD) $(LDFLAGS_CXX_PARTIAL_LINKING) $$($1_SYSROOT_LDFLAGS) \
-	        $(LD_OUT_OPTION)$$($1_TARGET_RELOCATABLE) \
+	        -o $$($1_TARGET_RELOCATABLE) \
 	        $$($1_LD_OBJ_ARG))
         endif
 	$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_link, \
 	  $(if $$($1_LINK_OBJS_RELATIVE), $$(CD) $$(OUTPUTDIR) ; ) \
-	    $$($1_AR) $$(ARFLAGS) $$($1_ARFLAGS) $(AR_OUT_OPTION)$$($1_TARGET) $$($1_AR_OBJ_ARG) \
+	    $$($1_AR) $$(ARFLAGS) $$($1_ARFLAGS) -r -cs $$($1_TARGET) \
-	        $$($1_RES))
+	        $$($1_AR_OBJ_ARG) $$($1_RES))
         ifeq ($(STATIC_BUILD), true)
-          ifeq ($$($1_USE_MAPFILE_FOR_SYMBOLS), true)
+	  $(RM) $$(@D)/$$(basename $$(@F)).symbols; \
-	    $(CP) $$($1_MAPFILE) $$(@D)/$$(basename $$(@F)).symbols
+	  $(ECHO) "Getting symbols from nm"; \
-          else
+	  $(NM) $(NMFLAGS) -m $$($1_TARGET) | $(GREP)  "__TEXT" | \
-            # get the exported symbols from mapfiles and if there
+	      $(EGREP) -v "non-external|private extern|__TEXT,__eh_frame" | \
-            # is no mapfile, get them from the archive
+	      $(SED) -e  's/.* //' > $$(@D)/$$(basename $$(@F)).symbols
-	    $(RM) $$(@D)/$$(basename $$(@F)).symbols; \
-	    if [ ! -z $$($1_MAPFILE) -a -e $$($1_MAPFILE) ]; then \
-	      $(ECHO) "Getting symbols from mapfile $$($1_MAPFILE)"; \
-	      $(AWK) '/global:/','/local:/' $$($1_MAPFILE) | \
-		  $(SED) -e 's/#.*//;s/global://;s/local://;s/\;//;s/^[ 	]*/_/;/^_$$$$/d' | \
-		  $(EGREP) -v "JNI_OnLoad|JNI_OnUnload|Agent_OnLoad|Agent_OnUnload|Agent_OnAttach" > \
-		  $$(@D)/$$(basename $$(@F)).symbols || true; \
-	      $(NM) $(NMFLAGS) $$($1_TARGET) | $(GREP)  " T " | \
-		  $(EGREP) "JNI_OnLoad|JNI_OnUnload|Agent_OnLoad|Agent_OnUnload|Agent_OnAttach" | \
-		  $(CUT) -d ' ' -f 3 >>  $$(@D)/$$(basename $$(@F)).symbols || true;\
-	    else \
-	      $(ECHO) "Getting symbols from nm"; \
-	      $(NM) $(NMFLAGS) -m $$($1_TARGET) | $(GREP)  "__TEXT" | \
-		  $(EGREP) -v "non-external|private extern|__TEXT,__eh_frame" | \
-		  $(SED) -e  's/.* //' > $$(@D)/$$(basename $$(@F)).symbols; \
-	    fi
-          endif
         endif
 endef
 
@@ -174,39 +140,13 @@ define CreateDynamicLibraryOrExecutable
     endif
   endif
 
-  ifeq ($(call isTargetOs, windows), true)
+  $1_VARDEPS := $$($1_LD) $$($1_SYSROOT_LDFLAGS) $$($1_LDFLAGS) \
-    ifeq ($$($1_EMBED_MANIFEST), true)
+      $$($1_EXTRA_LDFLAGS) $$($1_LIBS) $$($1_EXTRA_LIBS) \
-      $1_EXTRA_LDFLAGS += -manifest:embed
+      $$($1_CREATE_DEBUGINFO_CMDS) $$($1_STRIP_CMD) $$($1_CREATE_DEBUGLINK_CMDS)
-    endif
-
-    $1_IMPORT_LIBRARY := $$($1_OBJECT_DIR)/$$($1_NAME).lib
-    $1_EXTRA_LDFLAGS += "-implib:$$($1_IMPORT_LIBRARY)"
-    ifeq ($$($1_TYPE), LIBRARY)
-      # To properly trigger downstream dependants of the import library, just as
-      # for debug files, we must have a recipe in the rule. To avoid rerunning
-      # the recipe every time have it touch the target. If an import library
-      # file is deleted by something external, explicitly delete the target to
-      # trigger a rebuild of both.
-      ifneq ($$(wildcard $$($1_IMPORT_LIBRARY)), $$($1_IMPORT_LIBRARY))
-        $$(call LogDebug, Deleting $$($1_BASENAME) because import library is missing)
-        $$(shell $(RM) $$($1_TARGET))
-      endif
-      $$($1_IMPORT_LIBRARY): $$($1_TARGET)
-	$(TOUCH) $$@
-
-      $1 += $$($1_IMPORT_LIBRARY)
-    endif
-  endif
-
-  $1_VARDEPS := $$($1_LD) $$($1_SYSROOT_LDFLAGS) $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) \
-      $$($1_LIBS) $$($1_EXTRA_LIBS) $$($1_MT) \
-      $$($1_CREATE_DEBUGINFO_CMDS) $$($1_MANIFEST_VERSION) \
-      $$($1_STRIP_CMD) $$($1_CREATE_DEBUGLINK_CMDS)
   $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, \
       $$($1_OBJECT_DIR)/$$($1_NOSUFFIX).vardeps)
 
-  $1_TARGET_DEPS := $$($1_ALL_OBJS) $$($1_RES) $$($1_MANIFEST) \
+  $1_TARGET_DEPS := $$($1_ALL_OBJS) $$($1_VARDEPS_FILE)
-      $$($1_REAL_MAPFILE) $$($1_VARDEPS_FILE)
 
   $$($1_TARGET): $$($1_TARGET_DEPS)
         ifneq ($$($1_OBJ_FILE_LIST), )
@@ -216,47 +156,27 @@ define CreateDynamicLibraryOrExecutable
 	    $$(eval $$(call ListPathsSafely, $1_ALL_OBJS, $$($1_OBJ_FILE_LIST)))
           endif
         endif
-        # Keep as much as possible on one execution line for best performance
-        # on Windows
 	$$(call LogInfo, Linking $$($1_BASENAME))
 	$$(call MakeDir, $$($1_OUTPUT_DIR) $$($1_SYMBOLS_DIR))
-        ifeq ($(call isTargetOs, windows), true)
+	$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_link, \
-	  $$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_link, \
+	    $$(if $$($1_LINK_OBJS_RELATIVE), $$(CD) $$(OUTPUTDIR) ; ) \
-	      $$($1_LD) $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) $$($1_SYSROOT_LDFLAGS) \
+	    $$($1_LD) $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) \
-	          $(LD_OUT_OPTION)$$($1_TARGET) $$($1_LD_OBJ_ARG) $$($1_RES) \
+	        $$($1_SYSROOT_LDFLAGS) -o $$($1_TARGET) $$($1_LD_OBJ_ARG) \
-	          $$($1_LIBS) $$($1_EXTRA_LIBS)) \
+	        $$($1_LIBS) $$($1_EXTRA_LIBS))
-	      | $(GREP) -v "^   Creating library .*\.lib and object .*\.exp" || \
+	$$($1_CREATE_DEBUGINFO_CMDS)
-	          test "$$$$?" = "1" ; \
+	$$($1_STRIP_CMD)
-	  $$($1_CREATE_DEBUGINFO_CMDS)
+	$$($1_CREATE_DEBUGLINK_CMDS)
-	  $$($1_STRIP_CMD)
-	  $$($1_CREATE_DEBUGLINK_CMDS)
-          ifeq ($(call isBuildOsEnv, windows.wsl2), true)
-	    $$(CHMOD) +x $$($1_TARGET)
-          endif
-        else
-	  $$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_link, \
-	      $$(if $$($1_LINK_OBJS_RELATIVE), $$(CD) $$(OUTPUTDIR) ; ) \
-	      $$($1_LD) $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) $$($1_SYSROOT_LDFLAGS) \
-	          $(LD_OUT_OPTION)$$($1_TARGET) $$($1_LD_OBJ_ARG) $$($1_RES) \
-	          $$($1_LIBS) $$($1_EXTRA_LIBS)) ; \
-	  $$($1_CREATE_DEBUGINFO_CMDS)
-	  $$($1_STRIP_CMD)
-	  $$($1_CREATE_DEBUGLINK_CMDS)
-        endif
-        ifeq ($(call isTargetOs, windows), true)
-          ifneq ($$($1_MANIFEST), )
-	    $$($1_MT) -nologo -manifest $$($1_MANIFEST) -identity:"$$($1_NAME).exe, version=$$($1_MANIFEST_VERSION)" -outputresource:$$@;#1
-          endif
-        endif
         # On macosx, optionally run codesign on every binary.
         # Remove signature explicitly first to avoid warnings if the linker
         # added a default adhoc signature.
         ifeq ($(MACOSX_CODESIGN_MODE), hardened)
 	  $(CODESIGN) --remove-signature $$@
-	  $(CODESIGN) -f -s "$(MACOSX_CODESIGN_IDENTITY)" --timestamp --options runtime \
+	  $(CODESIGN) -f -s "$(MACOSX_CODESIGN_IDENTITY)" --timestamp \
-	      --entitlements $$(call GetEntitlementsFile, $$@) $$@
+	      --options runtime --entitlements \
+	      $$(call GetEntitlementsFile, $$@) $$@
         else ifeq ($(MACOSX_CODESIGN_MODE), debug)
 	  $(CODESIGN) --remove-signature $$@
-	  $(CODESIGN) -f -s - --entitlements $$(call GetEntitlementsFile, $$@) $$@
+	  $(CODESIGN) -f -s - --entitlements \
+	      $$(call GetEntitlementsFile, $$@) $$@
         endif
 endef

make/common/native/LinkMicrosoft.gmk

@@ -0,0 +1,112 @@
+#
+# 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
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+################################################################################
+# This file contains functionality related to linking a native binary;
+# creating either a dynamic library, a static library or an executable.
+
+################################################################################
+define CreateLinkedResultMicrosoft
+  ifeq ($$($1_TYPE), STATIC_LIBRARY)
+    $$(eval $$(call CreateStaticLibraryMicrosoft,$1))
+  else
+    $$(eval $$(call CreateDynamicLibraryOrExecutableMicrosoft,$1))
+  endif
+endef
+
+################################################################################
+define CreateStaticLibraryMicrosoft
+  $1_VARDEPS := $$($1_LIB) $$(LIBFLAGS) $$($1_LIBFLAGS) $$($1_LIBS) \
+      $$($1_EXTRA_LIBS)
+  $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, \
+      $$($1_OBJECT_DIR)/$$($1_NOSUFFIX).vardeps)
+
+  $$($1_TARGET): $$($1_ALL_OBJS) $$($1_RES) $$($1_VARDEPS_FILE)
+        ifneq ($$($1_OBJ_FILE_LIST), )
+	  $$(eval $$(call ListPathsSafely, $1_ALL_OBJS, $$($1_OBJ_FILE_LIST)))
+        endif
+	$$(call LogInfo, Building static library $$($1_BASENAME))
+	$$(call MakeDir, $$($1_OUTPUT_DIR) $$($1_SYMBOLS_DIR))
+	$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_link, \
+	    $$($1_LIB) -nologo $$(LIBFLAGS) $$($1_LIBFLAGS) -out:$$($1_TARGET) \
+	        $$($1_LD_OBJ_ARG) $$($1_RES))
+endef
+
+################################################################################
+define CreateDynamicLibraryOrExecutableMicrosoft
+  ifeq ($$($1_EMBED_MANIFEST), true)
+    $1_EXTRA_LDFLAGS += -manifest:embed
+  endif
+
+  $1_IMPORT_LIBRARY := $$($1_OBJECT_DIR)/$$($1_NAME).lib
+  $1_EXTRA_LDFLAGS += "-implib:$$($1_IMPORT_LIBRARY)"
+
+  ifeq ($$($1_TYPE), LIBRARY)
+    # To properly trigger downstream dependants of the import library, just as
+    # for debug files, we must have a recipe in the rule. To avoid rerunning
+    # the recipe every time have it touch the target. If an import library
+    # file is deleted by something external, explicitly delete the target to
+    # trigger a rebuild of both.
+    ifneq ($$(wildcard $$($1_IMPORT_LIBRARY)), $$($1_IMPORT_LIBRARY))
+      $$(call LogDebug, Deleting $$($1_BASENAME) because import library is missing)
+      $$(shell $(RM) $$($1_TARGET))
+    endif
+    $$($1_IMPORT_LIBRARY): $$($1_TARGET)
+	$(TOUCH) $$@
+
+    $1 += $$($1_IMPORT_LIBRARY)
+  endif
+
+  $1_VARDEPS := $$($1_LD) $$($1_SYSROOT_LDFLAGS) $$($1_LDFLAGS) \
+      $$($1_EXTRA_LDFLAGS) $$($1_LIBS) $$($1_EXTRA_LIBS) $$($1_MT) \
+      $$($1_MANIFEST_VERSION)
+
+  $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, \
+      $$($1_OBJECT_DIR)/$$($1_NOSUFFIX).vardeps)
+
+  $1_TARGET_DEPS := $$($1_ALL_OBJS) $$($1_RES) $$($1_MANIFEST) \
+      $$($1_VARDEPS_FILE)
+
+  $$($1_TARGET): $$($1_TARGET_DEPS)
+        ifneq ($$($1_OBJ_FILE_LIST), )
+	  $$(eval $$(call ListPathsSafely, $1_ALL_OBJS, $$($1_OBJ_FILE_LIST)))
+        endif
+	$$(call LogInfo, Linking $$($1_BASENAME))
+	$$(call MakeDir, $$($1_OUTPUT_DIR) $$($1_SYMBOLS_DIR))
+	$$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_link, \
+	    $$($1_LD) -nologo $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) \
+	        $$($1_SYSROOT_LDFLAGS) -out:$$($1_TARGET) $$($1_LD_OBJ_ARG) \
+	        $$($1_RES) $$($1_LIBS) $$($1_EXTRA_LIBS)) \
+	    | $(GREP) -v "^   Creating library .*\.lib and object .*\.exp" || \
+	        test "$$$$?" = "1"
+        ifeq ($(call isBuildOsEnv, windows.wsl2), true)
+	  $$(CHMOD) +x $$($1_TARGET)
+        endif
+        ifneq ($$($1_MANIFEST), )
+	  $$($1_MT) -nologo -manifest $$($1_MANIFEST) \
+	      -identity:"$$($1_NAME).exe, version=$$($1_MANIFEST_VERSION)" \
+	      -outputresource:$$@;#1
+        endif
+endef

make/common/native/ToolchainDefinitions.gmk

@@ -1,125 +0,0 @@
-#
-# 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.  Oracle designates this
-# particular file as subject to the "Classpath" exception as provided
-# by Oracle in the LICENSE file that accompanied this code.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-################################################################################
-# This file contains functionality related to setting up our toolchain
-# definition variables.
-
-################################################################################
-# Define a native toolchain configuration that can be used by
-# SetupNativeCompilation calls
-#
-# Parameter 1 is the name of the toolchain definition
-#
-# Remaining parameters are named arguments:
-#   EXTENDS - Optional parent definition to get defaults from
-#   CC - The C compiler
-#   CXX - The C++ compiler
-#   LD - The Linker
-#   AR - Static linker
-#   AS - Assembler
-#   MT - Windows MT tool
-#   RC - Windows RC tool
-#   OBJCOPY - The objcopy tool for debug symbol handling
-#   STRIP - The tool to use for stripping debug symbols
-#   SYSROOT_CFLAGS - Compiler flags for using the specific sysroot
-#   SYSROOT_LDFLAGS - Linker flags for using the specific sysroot
-DefineNativeToolchain = $(NamedParamsMacroTemplate)
-define DefineNativeToolchainBody
-  # If extending another definition, get default values from that,
-  # otherwise, nothing more needs to be done as variable assignments
-  # already happened in NamedParamsMacroTemplate.
-  ifneq ($$($1_EXTENDS), )
-    $$(call SetIfEmpty, $1_CC, $$($$($1_EXTENDS)_CC))
-    $$(call SetIfEmpty, $1_CXX, $$($$($1_EXTENDS)_CXX))
-    $$(call SetIfEmpty, $1_LD, $$($$($1_EXTENDS)_LD))
-    $$(call SetIfEmpty, $1_AR, $$($$($1_EXTENDS)_AR))
-    $$(call SetIfEmpty, $1_AS, $$($$($1_EXTENDS)_AS))
-    $$(call SetIfEmpty, $1_MT, $$($$($1_EXTENDS)_MT))
-    $$(call SetIfEmpty, $1_RC, $$($$($1_EXTENDS)_RC))
-    $$(call SetIfEmpty, $1_OBJCOPY, $$($$($1_EXTENDS)_OBJCOPY))
-    $$(call SetIfEmpty, $1_STRIP, $$($$($1_EXTENDS)_STRIP))
-    $$(call SetIfEmpty, $1_SYSROOT_CFLAGS, $$($$($1_EXTENDS)_SYSROOT_CFLAGS))
-    $$(call SetIfEmpty, $1_SYSROOT_LDFLAGS, $$($$($1_EXTENDS)_SYSROOT_LDFLAGS))
-  endif
-endef
-
-# Create a default toolchain with the main compiler and linker
-$(eval $(call DefineNativeToolchain, TOOLCHAIN_DEFAULT, \
-    CC := $(CC), \
-    CXX := $(CXX), \
-    LD := $(LD), \
-    AR := $(AR), \
-    AS := $(AS), \
-    MT := $(MT), \
-    RC := $(RC), \
-    OBJCOPY := $(OBJCOPY), \
-    STRIP := $(STRIP), \
-    SYSROOT_CFLAGS := $(SYSROOT_CFLAGS), \
-    SYSROOT_LDFLAGS := $(SYSROOT_LDFLAGS), \
-))
-
-# Create a toolchain where linking is done with the C++ linker
-$(eval $(call DefineNativeToolchain, TOOLCHAIN_LINK_CXX, \
-    EXTENDS := TOOLCHAIN_DEFAULT, \
-    LD := $(LDCXX), \
-))
-
-# Create a toolchain with the BUILD compiler, used for build tools that
-# are to be run during the build.
-$(eval $(call DefineNativeToolchain, TOOLCHAIN_BUILD, \
-    CC := $(BUILD_CC), \
-    CXX := $(BUILD_CXX), \
-    LD := $(BUILD_LD), \
-    AR := $(BUILD_AR), \
-    AS := $(BUILD_AS), \
-    OBJCOPY := $(BUILD_OBJCOPY), \
-    STRIP := $(BUILD_STRIP), \
-    SYSROOT_CFLAGS := $(BUILD_SYSROOT_CFLAGS), \
-    SYSROOT_LDFLAGS := $(BUILD_SYSROOT_LDFLAGS), \
-))
-
-# BUILD toolchain with the C++ linker
-$(eval $(call DefineNativeToolchain, TOOLCHAIN_BUILD_LINK_CXX, \
-    EXTENDS := TOOLCHAIN_BUILD, \
-    LD := $(BUILD_LDCXX), \
-))
-
-################################################################################
-# Setup the toolchain to be used
-define SetupToolchain
-  $$(call SetIfEmpty, $1_TOOLCHAIN, TOOLCHAIN_DEFAULT)
-  $$(call SetIfEmpty, $1_CC, $$($$($1_TOOLCHAIN)_CC))
-  $$(call SetIfEmpty, $1_CXX, $$($$($1_TOOLCHAIN)_CXX))
-  $$(call SetIfEmpty, $1_LD, $$($$($1_TOOLCHAIN)_LD))
-  $$(call SetIfEmpty, $1_AR, $$($$($1_TOOLCHAIN)_AR))
-  $$(call SetIfEmpty, $1_AS, $$($$($1_TOOLCHAIN)_AS))
-  $$(call SetIfEmpty, $1_MT, $$($$($1_TOOLCHAIN)_MT))
-  $$(call SetIfEmpty, $1_RC, $$($$($1_TOOLCHAIN)_RC))
-  $$(call SetIfEmpty, $1_OBJCOPY, $$($$($1_TOOLCHAIN)_OBJCOPY))
-  $$(call SetIfEmpty, $1_STRIP, $$($$($1_TOOLCHAIN)_STRIP))
-  $$(call SetIfEmpty, $1_SYSROOT_CFLAGS, $$($$($1_TOOLCHAIN)_SYSROOT_CFLAGS))
-  $$(call SetIfEmpty, $1_SYSROOT_LDFLAGS, $$($$($1_TOOLCHAIN)_SYSROOT_LDFLAGS))
-endef

make/data/hotspot-symbols/symbols-aix

@@ -1,26 +0,0 @@
-#
-# Copyright (c) 2016, 2022, 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-JVM_handle_aix_signal
-numa_error
-numa_warn

make/data/hotspot-symbols/symbols-aix-debug

@@ -1,26 +0,0 @@
-#
-# Copyright (c) 2016, 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-JVM_AccessVMBooleanFlag
-JVM_AccessVMIntFlag
-JVM_VMBreakPoint

make/data/hotspot-symbols/symbols-linux

@@ -1,27 +0,0 @@
-#
-# Copyright (c) 2016, 2022, 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-JVM_handle_linux_signal
-JVM_IsUseContainerSupport
-numa_error
-numa_warn

make/data/hotspot-symbols/symbols-macosx

@@ -1,24 +0,0 @@
-#
-# Copyright (c) 2016, 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-JVM_handle_bsd_signal

make/data/hotspot-symbols/symbols-shared

@@ -1,35 +0,0 @@
-#
-# Copyright (c) 2016, 2023, 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-AsyncGetCallTrace
-jio_fprintf
-jio_printf
-jio_snprintf
-jio_vfprintf
-jio_vsnprintf
-JNI_CreateJavaVM
-JNI_GetCreatedJavaVMs
-JNI_GetDefaultJavaVMInitArgs
-JVM_IsForeignLinkerSupported
-JVM_FindClassFromBootLoader
-JVM_InitAgentProperties

make/data/hotspot-symbols/symbols-unix

@@ -1,233 +0,0 @@
-#
-# Copyright (c) 2016, 2023, 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-JVM_ActiveProcessorCount
-JVM_AreNestMates
-JVM_ArrayCopy
-JVM_AssertionStatusDirectives
-JVM_BeforeHalt
-JVM_CallStackWalk
-JVM_Clone
-JVM_ConstantPoolGetClassAt
-JVM_ConstantPoolGetClassAtIfLoaded
-JVM_ConstantPoolGetClassRefIndexAt
-JVM_ConstantPoolGetDoubleAt
-JVM_ConstantPoolGetFieldAt
-JVM_ConstantPoolGetFieldAtIfLoaded
-JVM_ConstantPoolGetFloatAt
-JVM_ConstantPoolGetIntAt
-JVM_ConstantPoolGetLongAt
-JVM_ConstantPoolGetMemberRefInfoAt
-JVM_ConstantPoolGetMethodAt
-JVM_ConstantPoolGetMethodAtIfLoaded
-JVM_ConstantPoolGetNameAndTypeRefIndexAt
-JVM_ConstantPoolGetNameAndTypeRefInfoAt
-JVM_ConstantPoolGetSize
-JVM_ConstantPoolGetStringAt
-JVM_ConstantPoolGetTagAt
-JVM_ConstantPoolGetUTF8At
-JVM_CurrentCarrierThread
-JVM_CurrentThread
-JVM_SetCurrentThread
-JVM_CurrentTimeMillis
-JVM_DefineClass
-JVM_DefineClassWithSource
-JVM_DesiredAssertionStatus
-JVM_DumpAllStacks
-JVM_DumpClassListToFile
-JVM_DumpDynamicArchive
-JVM_DumpThreads
-JVM_ExpandStackFrameInfo
-JVM_FillInStackTrace
-JVM_FindClassFromCaller
-JVM_FindClassFromClass
-JVM_FindLibraryEntry
-JVM_FindLoadedClass
-JVM_FindPrimitiveClass
-JVM_FindSignal
-JVM_FreeMemory
-JVM_GC
-JVM_GetAllThreads
-JVM_GetAndClearReferencePendingList
-JVM_GetArrayElement
-JVM_GetArrayLength
-JVM_GetCallerClass
-JVM_GetClassAccessFlags
-JVM_GetClassAnnotations
-JVM_GetClassConstantPool
-JVM_GetClassContext
-JVM_GetClassCPEntriesCount
-JVM_GetClassCPTypes
-JVM_GetClassDeclaredConstructors
-JVM_GetClassDeclaredFields
-JVM_GetClassDeclaredMethods
-JVM_GetClassFieldsCount
-JVM_GetClassFileVersion
-JVM_GetClassInterfaces
-JVM_GetClassMethodsCount
-JVM_GetClassModifiers
-JVM_GetClassNameUTF
-JVM_GetClassSignature
-JVM_GetClassSigners
-JVM_GetClassTypeAnnotations
-JVM_GetCPClassNameUTF
-JVM_GetCPFieldClassNameUTF
-JVM_GetCPFieldModifiers
-JVM_GetCPFieldNameUTF
-JVM_GetCPFieldSignatureUTF
-JVM_GetCPMethodClassNameUTF
-JVM_GetCPMethodModifiers
-JVM_GetCPMethodNameUTF
-JVM_GetCPMethodSignatureUTF
-JVM_GetDeclaredClasses
-JVM_GetDeclaringClass
-JVM_GetEnclosingMethodInfo
-JVM_GetExtendedNPEMessage
-JVM_GetFieldIxModifiers
-JVM_GetFieldTypeAnnotations
-JVM_GetInheritedAccessControlContext
-JVM_GetManagement
-JVM_GetMethodIxArgsSize
-JVM_GetMethodIxByteCode
-JVM_GetMethodIxByteCodeLength
-JVM_GetMethodIxExceptionIndexes
-JVM_GetMethodIxExceptionsCount
-JVM_GetMethodIxExceptionTableEntry
-JVM_GetMethodIxExceptionTableLength
-JVM_GetMethodIxLocalsCount
-JVM_GetMethodIxMaxStack
-JVM_GetMethodIxModifiers
-JVM_GetMethodIxNameUTF
-JVM_GetMethodIxSignatureUTF
-JVM_GetMethodParameters
-JVM_GetMethodTypeAnnotations
-JVM_GetNanoTimeAdjustment
-JVM_GetNestHost
-JVM_GetNestMembers
-JVM_GetNextThreadIdOffset
-JVM_GetPermittedSubclasses
-JVM_GetPrimitiveArrayElement
-JVM_GetProperties
-JVM_GetProtectionDomain
-JVM_GetRandomSeedForDumping
-JVM_GetRecordComponents
-JVM_GetSimpleBinaryName
-JVM_GetStackAccessControlContext
-JVM_GetSystemPackage
-JVM_GetSystemPackages
-JVM_GetTemporaryDirectory
-JVM_GetVmArguments
-JVM_Halt
-JVM_HasReferencePendingList
-JVM_HoldsLock
-JVM_GetStackTrace
-JVM_IHashCode
-JVM_InitClassName
-JVM_InitStackTraceElement
-JVM_InitStackTraceElementArray
-JVM_InitializeFromArchive
-JVM_InternString
-JVM_Interrupt
-JVM_InvokeMethod
-JVM_IsArrayClass
-JVM_IsCDSDumpingEnabled
-JVM_IsConstructorIx
-JVM_IsDumpingClassList
-JVM_IsFinalizationEnabled
-JVM_IsHiddenClass
-JVM_IsInterface
-JVM_IsPreviewEnabled
-JVM_IsContinuationsSupported
-JVM_IsPrimitiveClass
-JVM_IsRecord
-JVM_IsSameClassPackage
-JVM_IsSharingEnabled
-JVM_IsSupportedJNIVersion
-JVM_IsVMGeneratedMethodIx
-JVM_LatestUserDefinedLoader
-JVM_LoadZipLibrary
-JVM_LoadLibrary
-JVM_LookupDefineClass
-JVM_LookupLambdaProxyClassFromArchive
-JVM_LogLambdaFormInvoker
-JVM_MaxMemory
-JVM_MaxObjectInspectionAge
-JVM_MonitorNotify
-JVM_MonitorNotifyAll
-JVM_MonitorWait
-JVM_MoreStackWalk
-JVM_NanoTime
-JVM_NativePath
-JVM_NewArray
-JVM_NewInstanceFromConstructor
-JVM_NewMultiArray
-JVM_PhantomReferenceRefersTo
-JVM_PrintWarningAtDynamicAgentLoad
-JVM_RaiseSignal
-JVM_RawMonitorCreate
-JVM_RawMonitorDestroy
-JVM_RawMonitorEnter
-JVM_RawMonitorExit
-JVM_ReferenceClear
-JVM_ReferenceRefersTo
-JVM_RegisterContinuationMethods
-JVM_RegisterLambdaProxyClassForArchiving
-JVM_RegisterSignal
-JVM_ReleaseUTF
-JVM_ReportFinalizationComplete
-JVM_SetArrayElement
-JVM_SetClassSigners
-JVM_SetNativeThreadName
-JVM_SetPrimitiveArrayElement
-JVM_SetStackWalkContinuation
-JVM_SetThreadPriority
-JVM_SleepNanos
-JVM_StartThread
-JVM_TotalMemory
-JVM_UnloadLibrary
-JVM_WaitForReferencePendingList
-JVM_Yield
-
-# Module related API's
-JVM_AddModuleExports
-JVM_AddModuleExportsToAll
-JVM_AddModuleExportsToAllUnnamed
-JVM_AddReadsModule
-JVM_DefineArchivedModules
-JVM_DefineModule
-JVM_SetBootLoaderUnnamedModule
-
-# Virtual thread notifications for JVMTI
-JVM_VirtualThreadStart
-JVM_VirtualThreadEnd
-JVM_VirtualThreadMount
-JVM_VirtualThreadUnmount
-JVM_VirtualThreadHideFrames
-JVM_VirtualThreadDisableSuspend
-
-# Scoped values
-JVM_EnsureMaterializedForStackWalk_func
-JVM_FindScopedValueBindings
-JVM_ScopedValueCache
-JVM_SetScopedValueCache
-#

make/data/hotspot-symbols/version-script.txt

@@ -0,0 +1,11 @@
+SUNWprivate_1.1 {
+  global:
+    *;
+
+  local:
+    __bss_start;
+    _edata;
+    _end;
+    _fini;
+    _init;
+};

make/hotspot/gensrc/GensrcAdlc.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2013, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2013, 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
@@ -45,7 +45,6 @@ ifeq ($(call check-jvm-feature, compiler2), true)
       ADLC_CFLAGS := -qnortti -qeh -q64 -DAIX
     endif
   else ifeq ($(call isBuildOs, windows), true)
-    ADLC_LDFLAGS += -nologo
     ADLC_CFLAGS := -nologo -EHsc
     ADLC_CFLAGS_WARNINGS := -W3 -D_CRT_SECURE_NO_WARNINGS
   endif
@@ -72,7 +71,8 @@ ifeq ($(call check-jvm-feature, compiler2), true)
   $(eval $(call SetupNativeCompilation, BUILD_ADLC, \
       NAME := adlc, \
       TYPE := EXECUTABLE, \
-      TOOLCHAIN := TOOLCHAIN_BUILD_LINK_CXX, \
+      TARGET_TYPE := BUILD, \
+      LINK_TYPE := C++, \
       SRC := $(TOPDIR)/src/hotspot/share/adlc, \
       EXTRA_FILES := $(TOPDIR)/src/hotspot/share/opto/opcodes.cpp, \
       CFLAGS := $(ADLC_CFLAGS) $(ADLC_CFLAGS_WARNINGS), \

make/hotspot/lib/CompileGtest.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2016, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2016, 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
@@ -50,7 +50,7 @@ endif
 $(eval $(call SetupJdkLibrary, BUILD_GTEST_LIBGTEST, \
     NAME := gtest, \
     TYPE := STATIC_LIBRARY, \
-    TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
+    LINK_TYPE := C++, \
     OUTPUT_DIR := $(JVM_OUTPUTDIR)/libgtest, \
     OBJECT_DIR := $(JVM_OUTPUTDIR)/libgtest/objs, \
     SRC := \
@@ -75,25 +75,11 @@ $(eval $(call SetupJdkLibrary, BUILD_GTEST_LIBGTEST, \
 TARGETS += $(BUILD_GTEST_LIBGTEST)
 
 ################################################################################
-
-ifeq ($(call isTargetOs, windows), true)
-  GTEST_JVM_MAPFILE := $(JVM_MAPFILE)
-else
-  GTEST_JVM_MAPFILE := $(JVM_OUTPUTDIR)/gtest/mapfile
-
-  $(JVM_OUTPUTDIR)/gtest/symbols: $(JVM_OUTPUTDIR)/symbols
-	$(call MakeDir, $(@D))
-	( $(CAT) $< ; echo "runUnitTests" ) > $@
-
-  $(GTEST_JVM_MAPFILE): $(JVM_OUTPUTDIR)/gtest/symbols
-	$(call create-mapfile)
-endif
-
 # Additional disabled warnings are due to code in the test source.
 
 $(eval $(call SetupJdkLibrary, BUILD_GTEST_LIBJVM, \
     NAME := jvm, \
-    TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
+    LINK_TYPE := C++, \
     OUTPUT_DIR := $(JVM_OUTPUTDIR)/gtest, \
     OBJECT_DIR := $(JVM_OUTPUTDIR)/gtest/objs, \
     SRC := $(GTEST_TEST_SRC), \
@@ -123,8 +109,6 @@ $(eval $(call SetupJdkLibrary, BUILD_GTEST_LIBJVM, \
     LIBS_unix := -lgtest, \
     LIBS_windows := $(JVM_OUTPUTDIR)/libgtest/gtest.lib, \
     OPTIMIZATION := $(JVM_OPTIMIZATION), \
-    MAPFILE := $(GTEST_JVM_MAPFILE), \
-    USE_MAPFILE_FOR_SYMBOLS := true, \
     COPY_DEBUG_SYMBOLS := $(GTEST_COPY_DEBUG_SYMBOLS), \
     ZIP_EXTERNAL_DEBUG_SYMBOLS := false, \
     STRIP_SYMBOLS := false, \
@@ -134,14 +118,19 @@ $(eval $(call SetupJdkLibrary, BUILD_GTEST_LIBJVM, \
 
 $(BUILD_GTEST_LIBJVM) : $(BUILD_GTEST_LIBGTEST)
 
+ifeq ($(call isTargetOs, windows), true)
+  $(BUILD_GTEST_LIBJVM_TARGET): $(WIN_EXPORT_FILE)
+endif
+
+
 TARGETS += $(BUILD_GTEST_LIBJVM)
 
 ################################################################################
 
 $(eval $(call SetupJdkExecutable, BUILD_GTEST_LAUNCHER, \
-    TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
     NAME := gtestLauncher, \
     TYPE := EXECUTABLE, \
+    LINK_TYPE := C++, \
     OUTPUT_DIR := $(JVM_OUTPUTDIR)/gtest, \
     EXTRA_FILES := $(GTEST_LAUNCHER_SRC), \
     OBJECT_DIR := $(JVM_OUTPUTDIR)/gtest/launcher-objs, \

make/hotspot/lib/CompileJvm.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2013, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2013, 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
@@ -33,7 +33,6 @@ include lib/JvmFlags.gmk
 # Setup compilation of the main Hotspot native library (libjvm).
 
 JVM_OUTPUTDIR := $(JVM_VARIANT_OUTPUTDIR)/libjvm
-JVM_MAPFILE := $(JVM_OUTPUTDIR)/mapfile
 
 ################################################################################
 # Platform independent setup
@@ -146,12 +145,28 @@ $(call FillFindCache, $(JVM_SRC_DIRS))
 # operator new.
 LIBJVM_STATIC_EXCLUDE_OBJS := operator_new.o
 
+ifeq ($(call isTargetOs, windows), true)
+  ifeq ($(STATIC_LIBS), true)
+    WIN_EXPORT_FILE := $(JVM_OUTPUTDIR)/static-win-exports.def
+  else
+    WIN_EXPORT_FILE := $(JVM_OUTPUTDIR)/win-exports.def
+  endif
+
+  JVM_LDFLAGS += -def:$(WIN_EXPORT_FILE)
+endif
+
+ifeq ($(call isTargetOs, linux), true)
+  HOTSPOT_VERSION_SCRIPT := $(TOPDIR)/make/data/hotspot-symbols/version-script.txt
+
+  JVM_LDFLAGS += -Wl,--exclude-libs,ALL -Wl,-version-script=$(HOTSPOT_VERSION_SCRIPT)
+endif
+
 ################################################################################
 # Now set up the actual compilation of the main hotspot native library
 
 $(eval $(call SetupJdkLibrary, BUILD_LIBJVM, \
     NAME := jvm, \
-    TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
+    LINK_TYPE := C++, \
     OUTPUT_DIR := $(JVM_LIB_OUTPUTDIR), \
     SRC := $(JVM_SRC_DIRS), \
     EXCLUDES := $(JVM_EXCLUDES), \
@@ -169,6 +184,7 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBJVM, \
     DISABLED_WARNINGS_gcc_jvmciCodeInstaller.cpp := stringop-overflow, \
     DISABLED_WARNINGS_gcc_jvmtiTagMap.cpp := stringop-overflow, \
     DISABLED_WARNINGS_gcc_postaloc.cpp := address, \
+    DISABLED_WARNINGS_gcc_shenandoahLock.cpp := stringop-overflow, \
     DISABLED_WARNINGS_gcc_synchronizer.cpp := stringop-overflow, \
     DISABLED_WARNINGS_clang := $(DISABLED_WARNINGS_clang), \
     DISABLED_WARNINGS_clang_arguments.cpp := missing-field-initializers, \
@@ -194,8 +210,6 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBJVM, \
     LIBS := $(JVM_LIBS), \
     OPTIMIZATION := $(JVM_OPTIMIZATION), \
     OBJECT_DIR := $(JVM_OUTPUTDIR)/objs, \
-    MAPFILE := $(JVM_MAPFILE), \
-    USE_MAPFILE_FOR_SYMBOLS := true, \
     STRIPFLAGS := $(JVM_STRIPFLAGS), \
     EMBED_MANIFEST := true, \
     RC_FILEDESC := $(HOTSPOT_VM_DISTRO) $(OPENJDK_TARGET_CPU_BITS)-Bit $(JVM_VARIANT) VM, \
@@ -204,11 +218,47 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBJVM, \
     STATIC_LIB_EXCLUDE_OBJS := $(LIBJVM_STATIC_EXCLUDE_OBJS), \
 ))
 
+ifeq ($(call isTargetOs, windows), true)
+  # The following lines create a list of vftable symbols to be filtered out of
+  # the symbol file. Removing this line causes the linker to complain about too
+  # many (> 64K) symbols, so the _guess_ is that this line is here to keep down
+  # the number of exported symbols below that limit.
+  #
+  # Some usages of C++ lambdas require the vftable symbol of classes that use
+  # the lambda type as a template parameter. The usage of those classes won't
+  # link if their vftable symbols are removed. That's why there's an exception
+  # for vftable symbols containing the string 'lambda'.
+  #
+  # A very simple example of a lambda usage that fails if the lambda vftable
+  # symbols are missing in the symbol file:
+  #
+  # #include <functional>
+  # std::function<void()> f = [](){}
+  FILTER_SYMBOLS_AWK_SCRIPT := \
+      '{ \
+        if ($$7 ~ /\?\?_7.*@@6B@/ && $$7 !~ /type_info/ && $$7 !~ /lambda/) print "  " $$7; \
+      }'
+
+  # A more correct solution would be to send BUILD_LIBJVM_ALL_OBJS instead of
+  # cd && *.obj, but this will result in very long command lines, which could be
+  # problematic.
+  $(WIN_EXPORT_FILE): $(BUILD_LIBJVM_ALL_OBJS)
+	$(call LogInfo, Generating list of symbols to export from object files)
+	$(call MakeDir, $(@D))
+	$(ECHO) "EXPORTS" > $@.tmp
+	$(CD) $(BUILD_LIBJVM_OBJECT_DIR) && \
+	    $(DUMPBIN) -symbols *$(OBJ_SUFFIX) | $(AWK) $(FILTER_SYMBOLS_AWK_SCRIPT) | $(SORT) -u >> $@.tmp
+	$(RM) $@
+	$(MV) $@.tmp $@
+
+  $(BUILD_LIBJVM_TARGET): $(WIN_EXPORT_FILE)
+endif
+
 # Always recompile abstract_vm_version.cpp if libjvm needs to be relinked. This ensures
 # that the internal vm version is updated as it relies on __DATE__ and __TIME__
 # macros.
 ABSTRACT_VM_VERSION_OBJ := $(JVM_OUTPUTDIR)/objs/abstract_vm_version$(OBJ_SUFFIX)
-$(ABSTRACT_VM_VERSION_OBJ): $(filter-out $(ABSTRACT_VM_VERSION_OBJ) $(JVM_MAPFILE), \
+$(ABSTRACT_VM_VERSION_OBJ): $(filter-out $(ABSTRACT_VM_VERSION_OBJ), \
     $(BUILD_LIBJVM_TARGET_DEPS))
 
 ifneq ($(GENERATE_COMPILE_COMMANDS_ONLY), true)
@@ -236,11 +286,6 @@ endif
 # 1540-1090 : (I) The destructor of "..." might not be called.
 # 1540-1639 : (I) The behavior of long type bit fields has changed ...
 
-# Include mapfile generation. It relies on BUILD_LIBJVM_ALL_OBJS which is only
-# defined after the above call to BUILD_LIBJVM. Mapfile will be generated
-# after all object files are built, but before the jvm library is linked.
-include lib/JvmMapfile.gmk
-
 TARGETS += $(BUILD_LIBJVM)
 
 ################################################################################

make/hotspot/lib/JvmMapfile.gmk

@@ -1,176 +0,0 @@
-#
-# Copyright (c) 2013, 2023, 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
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.  Oracle designates this
-# particular file as subject to the "Classpath" exception as provided
-# by Oracle in the LICENSE file that accompanied this code.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-$(eval $(call IncludeCustomExtension, hotspot/lib/JvmMapfile.gmk))
-
-################################################################################
-# Combine a list of static symbols
-
-ifeq ($(call And, $(call isTargetOs, windows) $(call isTargetCpu, x86_64)), false)
-  # On Windows x86_64, we should not have any symbols at all, since that
-  # results in duplicate warnings from the linker (JDK-8043491).
-  SYMBOLS_SRC += $(TOPDIR)/make/data/hotspot-symbols/symbols-shared
-endif
-
-ifeq ($(call isTargetOsType, unix), true)
-  SYMBOLS_SRC += $(TOPDIR)/make/data/hotspot-symbols/symbols-unix
-endif
-
-ifneq ($(wildcard $(TOPDIR)/make/data/hotspot-symbols/symbols-$(OPENJDK_TARGET_OS)), )
-  SYMBOLS_SRC += $(TOPDIR)/make/data/hotspot-symbols/symbols-$(OPENJDK_TARGET_OS)
-endif
-
-ifneq ($(findstring debug, $(DEBUG_LEVEL)), )
-  ifneq ($(wildcard $(TOPDIR)/make/data/hotspot-symbols/symbols-$(OPENJDK_TARGET_OS)-debug), )
-    SYMBOLS_SRC += $(TOPDIR)/make/data/hotspot-symbols/symbols-$(OPENJDK_TARGET_OS)-debug
-  endif
-endif
-
-################################################################################
-# Create a dynamic list of symbols from the built object files. This is highly
-# platform dependent.
-
-ifeq ($(call isTargetOs, linux), true)
-  DUMP_SYMBOLS_CMD := $(NM) $(NMFLAGS) --defined-only *$(OBJ_SUFFIX)
-  ifneq ($(FILTER_SYMBOLS_PATTERN), )
-    FILTER_SYMBOLS_PATTERN := $(FILTER_SYMBOLS_PATTERN)|
-  endif
-  FILTER_SYMBOLS_PATTERN := $(FILTER_SYMBOLS_PATTERN)^_ZTV|^gHotSpotVM|^UseSharedSpaces$$
-  FILTER_SYMBOLS_PATTERN := $(FILTER_SYMBOLS_PATTERN)|^_ZN9Arguments17SharedArchivePathE$$
-  FILTER_SYMBOLS_AWK_SCRIPT := \
-      '{ \
-        if ($$3 ~ /$(FILTER_SYMBOLS_PATTERN)/) print $$3; \
-      }'
-
-else ifeq ($(call isTargetOs, macosx), true)
-  # nm on macosx prints out "warning: nm: no name list" to stderr for
-  # files without symbols. Hide this, even at the expense of hiding real errors.
-  DUMP_SYMBOLS_CMD := $(NM) $(NMFLAGS) -Uj *$(OBJ_SUFFIX) 2> /dev/null
-  ifneq ($(FILTER_SYMBOLS_PATTERN), )
-    FILTER_SYMBOLS_PATTERN := $(FILTER_SYMBOLS_PATTERN)|
-  endif
-  FILTER_SYMBOLS_PATTERN := $(FILTER_SYMBOLS_PATTERN)^_ZTV|^gHotSpotVM
-  FILTER_SYMBOLS_AWK_SCRIPT := \
-      '{ \
-        if ($$3 ~ /$(FILTER_SYMBOLS_PATTERN)/) print $$3; \
-      }'
-
-# NOTE: The script is from the old build. It is broken and finds no symbols.
-# The script below might be what was intended, but it fails to link with tons
-# of 'cannot export hidden symbol vtable for X'.
-#  '{ if ($$1 ~ /^__ZTV/ || $$1 ~ /^_gHotSpotVM/) print substr($$1, 2) }'
-else ifeq ($(call isTargetOs, aix), true)
-  # NOTE: The old build had the solution below. This should to be fixed in
-  # configure instead.
-
-  # On AIX we have to prevent that we pick up the 'nm' version from the GNU binutils
-  # which may be installed under /opt/freeware/bin. So better use an absolute path here!
-  # NM=/usr/bin/nm
-
-  DUMP_SYMBOLS_CMD := $(NM) $(NMFLAGS) -B -C *$(OBJ_SUFFIX)
-  FILTER_SYMBOLS_AWK_SCRIPT := \
-      '{ \
-        if (($$2="d" || $$2="D") && ($$3 ~ /^__vft/ || $$3 ~ /^gHotSpotVM/)) print $$3; \
-        if ($$3 ~ /^UseSharedSpaces$$/) print $$3; \
-        if ($$3 ~ /^SharedArchivePath__9Arguments$$/) print $$3; \
-       }'
-
-else ifeq ($(call isTargetOs, windows), true)
-  DUMP_SYMBOLS_CMD := $(DUMPBIN) -symbols *$(OBJ_SUFFIX)
-
-  # The following lines create a list of vftable symbols to be filtered out of
-  # the mapfile. Removing this line causes the linker to complain about too many
-  # (> 64K) symbols, so the _guess_ is that this line is here to keep down the
-  # number of exported symbols below that limit.
-  #
-  # Some usages of C++ lambdas require the vftable symbol of classes that use
-  # the lambda type as a template parameter. The usage of those classes won't
-  # link if their vftable symbols are removed. That's why there's an exception
-  # for vftable symbols containing the string 'lambda'.
-  #
-  # A very simple example of a lambda usage that fails if the lambda vftable
-  # symbols are missing in the mapfile:
-  #
-  # #include <functional>
-  # std::function<void()> f = [](){}
-
-  FILTER_SYMBOLS_AWK_SCRIPT := \
-      '{ \
-        if ($$7 ~ /\?\?_7.*@@6B@/ && $$7 !~ /type_info/ && $$7 !~ /lambda/) print $$7; \
-      }'
-
-else
-  $(error Unknown target OS $(OPENJDK_TARGET_OS) in JvmMapfile.gmk)
-endif
-
-# A more correct solution would be to send BUILD_LIBJVM_ALL_OBJS instead of
-# cd && *.o, but this will result in very long command lines, which is
-# problematic on some platforms.
-$(JVM_OUTPUTDIR)/symbols-objects: $(BUILD_LIBJVM_ALL_OBJS)
-	$(call LogInfo, Generating symbol list from object files)
-	$(CD) $(JVM_OUTPUTDIR)/objs && \
-	  $(DUMP_SYMBOLS_CMD) | $(AWK) $(FILTER_SYMBOLS_AWK_SCRIPT) | $(SORT) -u > $@
-
-SYMBOLS_SRC += $(JVM_OUTPUTDIR)/symbols-objects
-
-################################################################################
-# Now concatenate all symbol lists into a single file and remove comments.
-
-$(JVM_OUTPUTDIR)/symbols: $(SYMBOLS_SRC)
-	$(SED) -e '/^#/d' $^ > $@
-
-################################################################################
-# Finally convert the symbol list into a platform-specific mapfile
-
-ifeq ($(call isTargetOs, macosx), true)
-  # On macosx, we need to add a leading underscore
-  define create-mapfile-work
-	  $(AWK) '{ if ($$0 ~ ".") { print "  _" $$0 } }'  < $^ > $@.tmp
-  endef
-else ifeq ($(call isTargetOs, windows), true)
-  # On windows, add an 'EXPORTS' header
-  define create-mapfile-work
-	  $(ECHO) "EXPORTS" > $@.tmp
-	  $(AWK) '{ if ($$0 ~ ".") { print "  " $$0 } }'  < $^ >> $@.tmp
-  endef
-else
-  # Assume standard linker script
-  define create-mapfile-work
-	  $(PRINTF) "SUNWprivate_1.1 { \n  global: \n" > $@.tmp
-	  $(AWK) '{ if ($$0 ~ ".") { print "    " $$0 ";" } }' < $^ >> $@.tmp
-	  $(PRINTF) "  local: \n    *; \n }; \n" >> $@.tmp
-  endef
-endif
-
-define create-mapfile
-	$(call LogInfo, Creating mapfile)
-	$(call MakeDir, $(@D))
-	$(call create-mapfile-work)
-	$(RM) $@
-	$(MV) $@.tmp $@
-endef
-
-$(JVM_MAPFILE): $(JVM_OUTPUTDIR)/symbols
-	$(call create-mapfile)

make/modules/java.base/Lib.gmk

@@ -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
@@ -242,7 +242,7 @@ endif
 ifeq ($(call isTargetOs, linux)+$(call isTargetCpu, x86_64)+$(INCLUDE_COMPILER2)+$(filter $(TOOLCHAIN_TYPE), gcc), true+true+true+gcc)
   $(eval $(call SetupJdkLibrary, BUILD_LIB_SIMD_SORT, \
       NAME := simdsort, \
-      TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
+      LINK_TYPE := C++, \
       OPTIMIZATION := HIGH, \
       CFLAGS := $(CFLAGS_JDKLIB), \
       CXXFLAGS := $(CXXFLAGS_JDKLIB) -std=c++17, \

make/modules/java.base/lib/CoreLibraries.gmk

@@ -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
@@ -115,7 +115,7 @@ TARGETS += $(BUILD_LIBZIP)
 
 $(eval $(call SetupJdkLibrary, BUILD_LIBJIMAGE, \
     NAME := jimage, \
-    TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
+    LINK_TYPE := C++, \
     OPTIMIZATION := LOW, \
     CFLAGS := $(CFLAGS_JDKLIB), \
     CXXFLAGS := $(CXXFLAGS_JDKLIB), \

make/modules/java.desktop/Lib.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2022, 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
@@ -51,13 +51,14 @@ ifeq ($(call isTargetOs, aix), false)
       -DUSE_PLATFORM_MIDI_IN=TRUE \
       #
 
+  LIBJSOUND_LINK_TYPE := C
   ifeq ($(call isTargetOs, macosx), true)
-    LIBJSOUND_TOOLCHAIN := TOOLCHAIN_LINK_CXX
+    LIBJSOUND_LINK_TYPE := C++
   endif
 
   $(eval $(call SetupJdkLibrary, BUILD_LIBJSOUND, \
       NAME := jsound, \
-      TOOLCHAIN := $(LIBJSOUND_TOOLCHAIN), \
+      LINK_TYPE := $(LIBJSOUND_LINK_TYPE), \
       OPTIMIZATION := LOW, \
       CFLAGS := $(CFLAGS_JDKLIB) \
           $(LIBJSOUND_CFLAGS), \

make/modules/java.desktop/lib/Awt2dLibraries.gmk

@@ -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
@@ -562,9 +562,9 @@ LIBFONTMANAGER_CFLAGS += $(X_CFLAGS) -DLE_STANDALONE -DHEADLESS
 #   libawt_xawt). See JDK-8196516 for details.
 $(eval $(call SetupJdkLibrary, BUILD_LIBFONTMANAGER, \
     NAME := fontmanager, \
+    LINK_TYPE := C++, \
     EXCLUDE_FILES := $(LIBFONTMANAGER_EXCLUDE_FILES) \
         AccelGlyphCache.c, \
-    TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
     CFLAGS := $(CFLAGS_JDKLIB) $(LIBFONTMANAGER_CFLAGS), \
     CXXFLAGS := $(CXXFLAGS_JDKLIB) $(LIBFONTMANAGER_CFLAGS), \
     OPTIMIZATION := $(LIBFONTMANAGER_OPTIMIZATION), \

make/modules/jdk.hotspot.agent/Lib.gmk

@@ -45,16 +45,16 @@ else ifeq ($(call isTargetOs, windows), true)
   endif
 endif
 
-SA_TOOLCHAIN := $(TOOLCHAIN_DEFAULT)
+SA_LINK_TYPE := C
 ifeq ($(call isTargetOs, linux), true)
-  SA_TOOLCHAIN := TOOLCHAIN_LINK_CXX
+  SA_LINK_TYPE := C++
 endif
 
 ################################################################################
 
 $(eval $(call SetupJdkLibrary, BUILD_LIBSA, \
     NAME := saproc, \
-    TOOLCHAIN := $(SA_TOOLCHAIN), \
+    LINK_TYPE := $(SA_LINK_TYPE), \
     OPTIMIZATION := HIGH, \
     DISABLED_WARNINGS_gcc := sign-compare, \
     DISABLED_WARNINGS_gcc_ps_core.c := pointer-arith, \

make/modules/jdk.internal.le/Lib.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2015, 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
@@ -31,7 +31,7 @@ ifeq ($(call isTargetOs, linux macosx windows), true)
 
   $(eval $(call SetupJdkLibrary, BUILD_LIBLE, \
       NAME := le, \
-      TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
+      LINK_TYPE := C++, \
       OPTIMIZATION := LOW, \
       CFLAGS := $(CXXFLAGS_JDKLIB), \
       LDFLAGS := $(LDFLAGS_JDKLIB), \

make/modules/jdk.jpackage/Lib.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2018, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2018, 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
@@ -32,13 +32,13 @@ include LauncherCommon.gmk
 ifeq ($(call isTargetOs, linux), true)
   JPACKAGE_APPLAUNCHER_SRC := \
       $(call FindSrcDirsForComponent, jdk.jpackage, applauncher)
-  JPACKAGE_APPLAUNCHER_TOOLCHAIN := TOOLCHAIN_DEFAULT
+  JPACKAGE_APPLAUNCHER_LINK_TYPE := C
   JPACKAGE_APPLAUNCHER_INCLUDE_FILES := %.c
 else
   JPACKAGE_APPLAUNCHER_SRC := \
       $(call FindSrcDirsForComponent, jdk.jpackage, applauncher) \
       $(call FindSrcDirsForComponent, jdk.jpackage, common)
-  JPACKAGE_APPLAUNCHER_TOOLCHAIN := TOOLCHAIN_LINK_CXX
+  JPACKAGE_APPLAUNCHER_LINK_TYPE := C++
 endif
 
 
@@ -59,11 +59,11 @@ JPACKAGE_APPLAUNCHER_INCLUDES := $(addprefix -I, $(JPACKAGE_APPLAUNCHER_SRC))
 # Output app launcher executable in resources dir, and symbols in the object dir
 $(eval $(call SetupJdkExecutable, BUILD_JPACKAGE_APPLAUNCHEREXE, \
     NAME := jpackageapplauncher, \
+    LINK_TYPE := $(JPACKAGE_APPLAUNCHER_LINK_TYPE), \
     OUTPUT_DIR := $(JPACKAGE_OUTPUT_DIR), \
     SYMBOLS_DIR := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/jpackageapplauncher, \
     SRC := $(JPACKAGE_APPLAUNCHER_SRC), \
     INCLUDE_FILES := $(JPACKAGE_APPLAUNCHER_INCLUDE_FILES), \
-    TOOLCHAIN := $(JPACKAGE_APPLAUNCHER_TOOLCHAIN), \
     OPTIMIZATION := LOW, \
     DISABLED_WARNINGS_clang_LinuxPackage.c := format-nonliteral, \
     DISABLED_WARNINGS_clang_JvmLauncherLib.c := format-nonliteral, \
@@ -103,7 +103,7 @@ ifeq ($(call isTargetOs, linux), true)
       SYMBOLS_DIR := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/libjpackageapplauncheraux, \
       SRC := $(JPACKAGE_LIBAPPLAUNCHER_SRC), \
       EXCLUDE_FILES := LinuxLauncher.c LinuxPackage.c, \
-      TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
+      LINK_TYPE := C++, \
       OPTIMIZATION := LOW, \
       DISABLED_WARNINGS_clang_JvmLauncherLib.c := format-nonliteral, \
       DISABLED_WARNINGS_clang_tstrings.cpp := format-nonliteral, \
@@ -177,10 +177,10 @@ ifeq ($(call isTargetOs, windows), true)
   # Build non-console version of launcher
   $(eval $(call SetupJdkExecutable, BUILD_JPACKAGE_APPLAUNCHERWEXE, \
       NAME := jpackageapplauncherw, \
+      LINK_TYPE := $(BUILD_JPACKAGE_APPLAUNCHEREXE_LINK_TYPE), \
       OUTPUT_DIR := $(JPACKAGE_OUTPUT_DIR), \
       SYMBOLS_DIR := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/jpackageapplauncherw, \
       SRC := $(BUILD_JPACKAGE_APPLAUNCHEREXE_SRC), \
-      TOOLCHAIN := $(BUILD_JPACKAGE_APPLAUNCHEREXE_TOOLCHAIN), \
       OPTIMIZATION := $(BUILD_JPACKAGE_APPLAUNCHEREXE_OPTIMIZATION), \
       CXXFLAGS := $(BUILD_JPACKAGE_APPLAUNCHEREXE_CXXFLAGS), \
       CXXFLAGS_windows := $(BUILD_JPACKAGE_APPLAUNCHEREXE_CXXFLAGS_windows) -DJP_LAUNCHERW, \

src/hotspot/cpu/aarch64/assembler_aarch64.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2024, 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.
  *
@@ -118,10 +118,6 @@ extern "C" {
     else
       Disassembler::decode((address)start, (address)start + len);
   }
-
-  JNIEXPORT void das1(uintptr_t insn) {
-    das(insn, 1);
-  }
 }
 
 #define __ as->

src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp

@@ -1209,7 +1209,7 @@ void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
                       len,
                       tmp1,
                       tmp2,
-                      arrayOopDesc::header_size(op->type()),
+                      arrayOopDesc::base_offset_in_bytes(op->type()),
                       array_element_size(op->type()),
                       op->klass()->as_register(),
                       *op->stub()->entry());

src/hotspot/cpu/aarch64/c1_MacroAssembler_aarch64.cpp

@@ -188,6 +188,12 @@ void C1_MacroAssembler::initialize_header(Register obj, Register klass, Register
 
   if (len->is_valid()) {
     strw(len, Address(obj, arrayOopDesc::length_offset_in_bytes()));
+    int base_offset = arrayOopDesc::length_offset_in_bytes() + BytesPerInt;
+    if (!is_aligned(base_offset, BytesPerWord)) {
+      assert(is_aligned(base_offset, BytesPerInt), "must be 4-byte aligned");
+      // Clear gap/first 4 bytes following the length field.
+      strw(zr, Address(obj, base_offset));
+    }
   } else if (UseCompressedClassPointers) {
     store_klass_gap(obj, zr);
   }
@@ -266,7 +272,7 @@ void C1_MacroAssembler::initialize_object(Register obj, Register klass, Register
 
   verify_oop(obj);
 }
-void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1, Register t2, int header_size, int f, Register klass, Label& slow_case) {
+void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1, Register t2, int base_offset_in_bytes, int f, Register klass, Label& slow_case) {
   assert_different_registers(obj, len, t1, t2, klass);
 
   // determine alignment mask
@@ -279,7 +285,7 @@ void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1,
 
   const Register arr_size = t2; // okay to be the same
   // align object end
-  mov(arr_size, (int32_t)header_size * BytesPerWord + MinObjAlignmentInBytesMask);
+  mov(arr_size, (int32_t)base_offset_in_bytes + MinObjAlignmentInBytesMask);
   add(arr_size, arr_size, len, ext::uxtw, f);
   andr(arr_size, arr_size, ~MinObjAlignmentInBytesMask);
 
@@ -287,8 +293,11 @@ void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1,
 
   initialize_header(obj, klass, len, t1, t2);
 
+  // Align-up to word boundary, because we clear the 4 bytes potentially
+  // following the length field in initialize_header().
+  int base_offset = align_up(base_offset_in_bytes, BytesPerWord);
   // clear rest of allocated space
-  initialize_body(obj, arr_size, header_size * BytesPerWord, t1, t2);
+  initialize_body(obj, arr_size, base_offset, t1, t2);
   if (Compilation::current()->bailed_out()) {
     return;
   }

src/hotspot/cpu/aarch64/c1_MacroAssembler_aarch64.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, 2021, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -100,7 +100,7 @@ using MacroAssembler::null_check;
   // header_size: size of object header in words
   // f          : element scale factor
   // slow_case  : exit to slow case implementation if fast allocation fails
-  void allocate_array(Register obj, Register len, Register t, Register t2, int header_size, int f, Register klass, Label& slow_case);
+  void allocate_array(Register obj, Register len, Register t, Register t2, int base_offset_in_bytes, int f, Register klass, Label& slow_case);
 
   int  rsp_offset() const { return _rsp_offset; }
   void set_rsp_offset(int n) { _rsp_offset = n; }

src/hotspot/cpu/aarch64/gc/g1/g1BarrierSetAssembler_aarch64.cpp

@@ -28,8 +28,8 @@
 #include "gc/g1/g1BarrierSetAssembler.hpp"
 #include "gc/g1/g1BarrierSetRuntime.hpp"
 #include "gc/g1/g1CardTable.hpp"
+#include "gc/g1/g1HeapRegion.hpp"
 #include "gc/g1/g1ThreadLocalData.hpp"
-#include "gc/g1/heapRegion.hpp"
 #include "gc/shared/collectedHeap.hpp"
 #include "interpreter/interp_masm.hpp"
 #include "runtime/javaThread.hpp"

src/hotspot/cpu/aarch64/upcallLinker_aarch64.cpp

@@ -245,9 +245,13 @@ address UpcallLinker::make_upcall_stub(jobject receiver, Method* entry,
   __ mov_metadata(rmethod, entry);
   __ str(rmethod, Address(rthread, JavaThread::callee_target_offset())); // just in case callee is deoptimized
 
+  __ push_cont_fastpath(rthread);
+
   __ ldr(rscratch1, Address(rmethod, Method::from_compiled_offset()));
   __ blr(rscratch1);
 
+  __ pop_cont_fastpath(rthread);
+
     // return value shuffle
   if (!needs_return_buffer) {
 #ifdef ASSERT

src/hotspot/cpu/arm/c1_LIRAssembler_arm.cpp

@@ -968,7 +968,7 @@ void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
                       op->tmp1()->as_register(),
                       op->tmp2()->as_register(),
                       op->tmp3()->as_register(),
-                      arrayOopDesc::header_size(op->type()),
+                      arrayOopDesc::base_offset_in_bytes(op->type()),
                       type2aelembytes(op->type()),
                       op->klass()->as_register(),
                       *op->stub()->entry());

src/hotspot/cpu/arm/gc/g1/g1BarrierSetAssembler_arm.cpp

@@ -29,8 +29,8 @@
 #include "gc/g1/g1BarrierSetRuntime.hpp"
 #include "gc/g1/g1ThreadLocalData.hpp"
 #include "gc/g1/g1CardTable.hpp"
+#include "gc/g1/g1HeapRegion.hpp"
 #include "gc/g1/g1ThreadLocalData.hpp"
-#include "gc/g1/heapRegion.hpp"
 #include "interpreter/interp_masm.hpp"
 #include "runtime/javaThread.hpp"
 #include "runtime/sharedRuntime.hpp"

src/hotspot/cpu/ppc/c1_LIRAssembler_ppc.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2023 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -2298,7 +2298,7 @@ void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
                       op->tmp1()->as_register(),
                       op->tmp2()->as_register(),
                       op->tmp3()->as_register(),
-                      arrayOopDesc::header_size(op->type()),
+                      arrayOopDesc::base_offset_in_bytes(op->type()),
                       type2aelembytes(op->type()),
                       op->klass()->as_register(),
                       *op->stub()->entry());

src/hotspot/cpu/ppc/c1_MacroAssembler_ppc.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2018 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -310,7 +310,7 @@ void C1_MacroAssembler::allocate_array(
   Register t1,                         // temp register
   Register t2,                         // temp register
   Register t3,                         // temp register
-  int      hdr_size,                   // object header size in words
+  int      base_offset_in_bytes,       // elements offset in bytes
   int      elt_size,                   // element size in bytes
   Register klass,                      // object klass
   Label&   slow_case                   // continuation point if fast allocation fails
@@ -342,7 +342,7 @@ void C1_MacroAssembler::allocate_array(
     sldi(t1, len, log2_elt_size);
     arr_len_in_bytes = t1;
   }
-  addi(arr_size, arr_len_in_bytes, hdr_size * wordSize + MinObjAlignmentInBytesMask); // Add space for header & alignment.
+  addi(arr_size, arr_len_in_bytes, base_offset_in_bytes + MinObjAlignmentInBytesMask); // Add space for header & alignment.
   clrrdi(arr_size, arr_size, LogMinObjAlignmentInBytes);                              // Align array size.
 
   // Allocate space & initialize header.
@@ -352,8 +352,18 @@ void C1_MacroAssembler::allocate_array(
   // Initialize body.
   const Register base  = t2;
   const Register index = t3;
-  addi(base, obj, hdr_size * wordSize);               // compute address of first element
+  addi(base, obj, base_offset_in_bytes);               // compute address of first element
-  addi(index, arr_size, -(hdr_size * wordSize));      // compute index = number of bytes to clear
+  addi(index, arr_size, -(base_offset_in_bytes));      // compute index = number of bytes to clear
+
+  // Zero first 4 bytes, if start offset is not word aligned.
+  if (!is_aligned(base_offset_in_bytes, BytesPerWord)) {
+    assert(is_aligned(base_offset_in_bytes, BytesPerInt), "must be 4-byte aligned");
+    li(t1, 0);
+    stw(t1, 0, base);
+    addi(base, base, BytesPerInt);
+    // Note: initialize_body will align index down, no need to correct it here.
+  }
+
   initialize_body(base, index);
 
   if (CURRENT_ENV->dtrace_alloc_probes()) {

src/hotspot/cpu/ppc/c1_MacroAssembler_ppc.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2015 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -80,7 +80,7 @@
     Register t1,                       // temp register
     Register t2,                       // temp register
     Register t3,                       // temp register
-    int      hdr_size,                 // object header size in words
+    int      base_offset_in_bytes,     // elements offset in bytes
     int      elt_size,                 // element size in bytes
     Register klass,                    // object klass
     Label&   slow_case                 // continuation point if fast allocation fails

src/hotspot/cpu/ppc/gc/g1/g1BarrierSetAssembler_ppc.cpp

@@ -30,9 +30,9 @@
 #include "gc/g1/g1BarrierSetRuntime.hpp"
 #include "gc/g1/g1CardTable.hpp"
 #include "gc/g1/g1DirtyCardQueue.hpp"
+#include "gc/g1/g1HeapRegion.hpp"
 #include "gc/g1/g1SATBMarkQueueSet.hpp"
 #include "gc/g1/g1ThreadLocalData.hpp"
-#include "gc/g1/heapRegion.hpp"
 #include "interpreter/interp_masm.hpp"
 #include "runtime/jniHandles.hpp"
 #include "runtime/sharedRuntime.hpp"

src/hotspot/cpu/ppc/globals_ppc.hpp

@@ -60,7 +60,7 @@ define_pd_global(bool,  VMContinuations, true);
 
 // Use large code-entry alignment.
 define_pd_global(uintx, CodeCacheSegmentSize,  128);
-define_pd_global(intx,  CodeEntryAlignment,    128);
+define_pd_global(intx,  CodeEntryAlignment,    64);
 define_pd_global(intx,  OptoLoopAlignment,     16);
 define_pd_global(intx,  InlineSmallCode,       1500);
 

src/hotspot/cpu/ppc/upcallLinker_ppc.cpp

@@ -243,10 +243,14 @@ address UpcallLinker::make_upcall_stub(jobject receiver, Method* entry,
   __ load_const_optimized(R19_method, (intptr_t)entry);
   __ std(R19_method, in_bytes(JavaThread::callee_target_offset()), R16_thread);
 
+  __ push_cont_fastpath();
+
   __ ld(call_target_address, in_bytes(Method::from_compiled_offset()), R19_method);
   __ mtctr(call_target_address);
   __ bctrl();
 
+  __ pop_cont_fastpath();
+
   // return value shuffle
   if (!needs_return_buffer) {
     // CallArranger can pick a return type that goes in the same reg for both CCs.

src/hotspot/cpu/riscv/c1_LIRAssembler_riscv.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, 2020, Red Hat Inc. All rights reserved.
  * Copyright (c) 2020, 2023, Huawei Technologies Co., Ltd. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -1020,7 +1020,7 @@ void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
                       len,
                       tmp1,
                       tmp2,
-                      arrayOopDesc::header_size(op->type()),
+                      arrayOopDesc::base_offset_in_bytes(op->type()),
                       array_element_size(op->type()),
                       op->klass()->as_register(),
                       *op->stub()->entry());

src/hotspot/cpu/riscv/c1_MacroAssembler_riscv.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
  * Copyright (c) 2020, 2022, Huawei Technologies Co., Ltd. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -280,7 +280,7 @@ void C1_MacroAssembler::initialize_object(Register obj, Register klass, Register
   verify_oop(obj);
 }
 
-void C1_MacroAssembler::allocate_array(Register obj, Register len, Register tmp1, Register tmp2, int header_size, int f, Register klass, Label& slow_case) {
+void C1_MacroAssembler::allocate_array(Register obj, Register len, Register tmp1, Register tmp2, int base_offset_in_bytes, int f, Register klass, Label& slow_case) {
   assert_different_registers(obj, len, tmp1, tmp2, klass);
 
   // determine alignment mask
@@ -292,7 +292,7 @@ void C1_MacroAssembler::allocate_array(Register obj, Register len, Register tmp1
 
   const Register arr_size = tmp2; // okay to be the same
   // align object end
-  mv(arr_size, (int32_t)header_size * BytesPerWord + MinObjAlignmentInBytesMask);
+  mv(arr_size, (int32_t)base_offset_in_bytes + MinObjAlignmentInBytesMask);
   shadd(arr_size, len, arr_size, t0, f);
   andi(arr_size, arr_size, ~(uint)MinObjAlignmentInBytesMask);
 
@@ -300,9 +300,20 @@ void C1_MacroAssembler::allocate_array(Register obj, Register len, Register tmp1
 
   initialize_header(obj, klass, len, tmp1, tmp2);
 
+  // Clear leading 4 bytes, if necessary.
+  // TODO: This could perhaps go into initialize_body() and also clear the leading 4 bytes
+  // for non-array objects, thereby replacing the klass-gap clearing code in initialize_header().
+  int base_offset = base_offset_in_bytes;
+  if (!is_aligned(base_offset, BytesPerWord)) {
+    assert(is_aligned(base_offset, BytesPerInt), "must be 4-byte aligned");
+    sw(zr, Address(obj, base_offset));
+    base_offset += BytesPerInt;
+  }
+  assert(is_aligned(base_offset, BytesPerWord), "must be word-aligned");
+
   // clear rest of allocated space
   const Register len_zero = len;
-  initialize_body(obj, arr_size, header_size * BytesPerWord, len_zero);
+  initialize_body(obj, arr_size, base_offset, len_zero);
 
   membar(MacroAssembler::StoreStore);
 

src/hotspot/cpu/riscv/c1_MacroAssembler_riscv.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, 2015, Red Hat Inc. All rights reserved.
  * Copyright (c) 2020, 2022, Huawei Technologies Co., Ltd. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -101,7 +101,7 @@ using MacroAssembler::null_check;
   // header_size: size of object header in words
   // f          : element scale factor
   // slow_case  : exit to slow case implementation if fast allocation fails
-  void allocate_array(Register obj, Register len, Register tmp1, Register tmp2, int header_size, int f, Register klass, Label& slow_case);
+  void allocate_array(Register obj, Register len, Register tmp1, Register tmp2, int base_offset_in_bytes, int f, Register klass, Label& slow_case);
 
   int  rsp_offset() const { return _rsp_offset; }
 

src/hotspot/cpu/riscv/gc/g1/g1BarrierSetAssembler_riscv.cpp

@@ -29,8 +29,8 @@
 #include "gc/g1/g1BarrierSetAssembler.hpp"
 #include "gc/g1/g1BarrierSetRuntime.hpp"
 #include "gc/g1/g1CardTable.hpp"
+#include "gc/g1/g1HeapRegion.hpp"
 #include "gc/g1/g1ThreadLocalData.hpp"
-#include "gc/g1/heapRegion.hpp"
 #include "gc/shared/collectedHeap.hpp"
 #include "interpreter/interp_masm.hpp"
 #include "runtime/javaThread.hpp"

src/hotspot/cpu/riscv/stubGenerator_riscv.cpp

@@ -4809,6 +4809,348 @@ class StubGenerator: public StubCodeGenerator {
     return (address) start;
   }
 
+
+  // ------------------------ SHA-1 intrinsic ------------------------
+
+  // K't =
+  //    5a827999, 0  <= t <= 19
+  //    6ed9eba1, 20 <= t <= 39
+  //    8f1bbcdc, 40 <= t <= 59
+  //    ca62c1d6, 60 <= t <= 79
+  void sha1_prepare_k(Register cur_k, int round) {
+    assert(round >= 0 && round < 80, "must be");
+
+    static const int64_t ks[] = {0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6};
+    if ((round % 20) == 0) {
+      __ mv(cur_k, ks[round/20]);
+    }
+  }
+
+  // W't =
+  //    M't,                                      0 <=  t <= 15
+  //    ROTL'1(W't-3 ^ W't-8 ^ W't-14 ^ W't-16),  16 <= t <= 79
+  void sha1_prepare_w(Register cur_w, Register ws[], Register buf, int round) {
+    assert(round >= 0 && round < 80, "must be");
+
+    if (round < 16) {
+      // in the first 16 rounds, in ws[], every register contains 2 W't, e.g.
+      //   in ws[0], high part contains W't-0, low part contains W't-1,
+      //   in ws[1], high part contains W't-2, low part contains W't-3,
+      //   ...
+      //   in ws[7], high part contains W't-14, low part contains W't-15.
+
+      if ((round % 2) == 0) {
+        __ ld(ws[round/2], Address(buf, (round/2) * 8));
+        // reverse bytes, as SHA-1 is defined in big-endian.
+        __ revb(ws[round/2], ws[round/2]);
+        __ srli(cur_w, ws[round/2], 32);
+      } else {
+        __ mv(cur_w, ws[round/2]);
+      }
+
+      return;
+    }
+
+    if ((round % 2) == 0) {
+      int idx = 16;
+      // W't = ROTL'1(W't-3 ^ W't-8 ^ W't-14 ^ W't-16),  16 <= t <= 79
+      __ srli(t1, ws[(idx-8)/2], 32);
+      __ xorr(t0, ws[(idx-3)/2], t1);
+
+      __ srli(t1, ws[(idx-14)/2], 32);
+      __ srli(cur_w, ws[(idx-16)/2], 32);
+      __ xorr(cur_w, cur_w, t1);
+
+      __ xorr(cur_w, cur_w, t0);
+      __ rolw_imm(cur_w, cur_w, 1, t0);
+
+      // copy the cur_w value to ws[8].
+      // now, valid w't values are at:
+      //  w0:       ws[0]'s lower 32 bits
+      //  w1 ~ w14: ws[1] ~ ws[7]
+      //  w15:      ws[8]'s higher 32 bits
+      __ slli(ws[idx/2], cur_w, 32);
+
+      return;
+    }
+
+    int idx = 17;
+    // W't = ROTL'1(W't-3 ^ W't-8 ^ W't-14 ^ W't-16),  16 <= t <= 79
+    __ srli(t1, ws[(idx-3)/2], 32);
+    __ xorr(t0, t1, ws[(idx-8)/2]);
+
+    __ xorr(cur_w, ws[(idx-16)/2], ws[(idx-14)/2]);
+
+    __ xorr(cur_w, cur_w, t0);
+    __ rolw_imm(cur_w, cur_w, 1, t0);
+
+    // copy the cur_w value to ws[8]
+    __ zero_extend(cur_w, cur_w, 32);
+    __ orr(ws[idx/2], ws[idx/2], cur_w);
+
+    // shift the w't registers, so they start from ws[0] again.
+    // now, valid w't values are at:
+    //  w0 ~ w15: ws[0] ~ ws[7]
+    Register ws_0 = ws[0];
+    for (int i = 0; i < 16/2; i++) {
+      ws[i] = ws[i+1];
+    }
+    ws[8] = ws_0;
+  }
+
+  // f't(x, y, z) =
+  //    Ch(x, y, z)     = (x & y) ^ (~x & z)            , 0  <= t <= 19
+  //    Parity(x, y, z) = x ^ y ^ z                     , 20 <= t <= 39
+  //    Maj(x, y, z)    = (x & y) ^ (x & z) ^ (y & z)   , 40 <= t <= 59
+  //    Parity(x, y, z) = x ^ y ^ z                     , 60 <= t <= 79
+  void sha1_f(Register dst, Register x, Register y, Register z, int round) {
+    assert(round >= 0 && round < 80, "must be");
+    assert_different_registers(dst, x, y, z, t0, t1);
+
+    if (round < 20) {
+      // (x & y) ^ (~x & z)
+      __ andr(t0, x, y);
+      __ andn(dst, z, x);
+      __ xorr(dst, dst, t0);
+    } else if (round >= 40 && round < 60) {
+      // (x & y) ^ (x & z) ^ (y & z)
+      __ andr(t0, x, y);
+      __ andr(t1, x, z);
+      __ andr(dst, y, z);
+      __ xorr(dst, dst, t0);
+      __ xorr(dst, dst, t1);
+    } else {
+      // x ^ y ^ z
+      __ xorr(dst, x, y);
+      __ xorr(dst, dst, z);
+    }
+  }
+
+  // T = ROTL'5(a) + f't(b, c, d) + e + K't + W't
+  // e = d
+  // d = c
+  // c = ROTL'30(b)
+  // b = a
+  // a = T
+  void sha1_process_round(Register a, Register b, Register c, Register d, Register e,
+                          Register cur_k, Register cur_w, Register tmp, int round) {
+    assert(round >= 0 && round < 80, "must be");
+    assert_different_registers(a, b, c, d, e, cur_w, cur_k, tmp, t0);
+
+    // T = ROTL'5(a) + f't(b, c, d) + e + K't + W't
+
+    // cur_w will be recalculated at the beginning of each round,
+    // so, we can reuse it as a temp register here.
+    Register tmp2 = cur_w;
+
+    // reuse e as a temporary register, as we will mv new value into it later
+    Register tmp3 = e;
+    __ add(tmp2, cur_k, tmp2);
+    __ add(tmp3, tmp3, tmp2);
+    __ rolw_imm(tmp2, a, 5, t0);
+
+    sha1_f(tmp, b, c, d, round);
+
+    __ add(tmp2, tmp2, tmp);
+    __ add(tmp2, tmp2, tmp3);
+
+    // e = d
+    // d = c
+    // c = ROTL'30(b)
+    // b = a
+    // a = T
+    __ mv(e, d);
+    __ mv(d, c);
+
+    __ rolw_imm(c, b, 30);
+    __ mv(b, a);
+    __ mv(a, tmp2);
+  }
+
+  // H(i)0 = a + H(i-1)0
+  // H(i)1 = b + H(i-1)1
+  // H(i)2 = c + H(i-1)2
+  // H(i)3 = d + H(i-1)3
+  // H(i)4 = e + H(i-1)4
+  void sha1_calculate_im_hash(Register a, Register b, Register c, Register d, Register e,
+                              Register prev_ab, Register prev_cd, Register prev_e) {
+    assert_different_registers(a, b, c, d, e, prev_ab, prev_cd, prev_e);
+
+    __ add(a, a, prev_ab);
+    __ srli(prev_ab, prev_ab, 32);
+    __ add(b, b, prev_ab);
+
+    __ add(c, c, prev_cd);
+    __ srli(prev_cd, prev_cd, 32);
+    __ add(d, d, prev_cd);
+
+    __ add(e, e, prev_e);
+  }
+
+  void sha1_preserve_prev_abcde(Register a, Register b, Register c, Register d, Register e,
+                                Register prev_ab, Register prev_cd, Register prev_e) {
+    assert_different_registers(a, b, c, d, e, prev_ab, prev_cd, prev_e, t0);
+
+    __ slli(t0, b, 32);
+    __ zero_extend(prev_ab, a, 32);
+    __ orr(prev_ab, prev_ab, t0);
+
+    __ slli(t0, d, 32);
+    __ zero_extend(prev_cd, c, 32);
+    __ orr(prev_cd, prev_cd, t0);
+
+    __ mv(prev_e, e);
+  }
+
+  // Intrinsic for:
+  //   void sun.security.provider.SHA.implCompress0(byte[] buf, int ofs)
+  //   void sun.security.provider.DigestBase.implCompressMultiBlock0(byte[] b, int ofs, int limit)
+  //
+  // Arguments:
+  //
+  // Inputs:
+  //   c_rarg0: byte[]  src array + offset
+  //   c_rarg1: int[]   SHA.state
+  //   - - - - - - below are only for implCompressMultiBlock0 - - - - - -
+  //   c_rarg2: int     offset
+  //   c_rarg3: int     limit
+  //
+  // Outputs:
+  //   - - - - - - below are only for implCompressMultiBlock0 - - - - - -
+  //   c_rarg0: int offset, when (multi_block == true)
+  //
+  address generate_sha1_implCompress(bool multi_block, const char *name) {
+    __ align(CodeEntryAlignment);
+    StubCodeMark mark(this, "StubRoutines", name);
+
+    address start = __ pc();
+    __ enter();
+
+    RegSet saved_regs = RegSet::range(x18, x27);
+    if (multi_block) {
+      // use x9 as src below.
+      saved_regs += RegSet::of(x9);
+    }
+    __ push_reg(saved_regs, sp);
+
+    // c_rarg0 - c_rarg3: x10 - x13
+    Register buf    = c_rarg0;
+    Register state  = c_rarg1;
+    Register offset = c_rarg2;
+    Register limit  = c_rarg3;
+    // use src to contain the original start point of the array.
+    Register src    = x9;
+
+    if (multi_block) {
+      __ sub(limit, limit, offset);
+      __ add(limit, limit, buf);
+      __ sub(src, buf, offset);
+    }
+
+    // [args-reg]:  x14 - x17
+    // [temp-reg]:  x28 - x31
+    // [saved-reg]: x18 - x27
+
+    // h0/1/2/3/4
+    const Register a = x14, b = x15, c = x16, d = x17, e = x28;
+    // w0, w1, ... w15
+    // put two adjecent w's in one register:
+    //    one at high word part, another at low word part
+    // at different round (even or odd), w't value reside in different items in ws[].
+    // w0 ~ w15, either reside in
+    //    ws[0] ~ ws[7], where
+    //      w0 at higher 32 bits of ws[0],
+    //      w1 at lower 32 bits of ws[0],
+    //      ...
+    //      w14 at higher 32 bits of ws[7],
+    //      w15 at lower 32 bits of ws[7].
+    // or, reside in
+    //    w0:       ws[0]'s lower 32 bits
+    //    w1 ~ w14: ws[1] ~ ws[7]
+    //    w15:      ws[8]'s higher 32 bits
+    Register ws[9] = {x29, x30, x31, x18,
+                      x19, x20, x21, x22,
+                      x23}; // auxiliary register for calculating w's value
+    // current k't's value
+    const Register cur_k = x24;
+    // current w't's value
+    const Register cur_w = x25;
+    // values of a, b, c, d, e in the previous round
+    const Register prev_ab = x26, prev_cd = x27;
+    const Register prev_e = offset; // reuse offset/c_rarg2
+
+    // load 5 words state into a, b, c, d, e.
+    //
+    // To minimize the number of memory operations, we apply following
+    // optimization: read the states (a/b/c/d) of 4-byte values in pairs,
+    // with a single ld, and split them into 2 registers.
+    //
+    // And, as the core algorithm of SHA-1 works on 32-bits words, so
+    // in the following code, it does not care about the content of
+    // higher 32-bits in a/b/c/d/e. Based on this observation,
+    // we can apply further optimization, which is to just ignore the
+    // higher 32-bits in a/c/e, rather than set the higher
+    // 32-bits of a/c/e to zero explicitly with extra instructions.
+    __ ld(a, Address(state, 0));
+    __ srli(b, a, 32);
+    __ ld(c, Address(state, 8));
+    __ srli(d, c, 32);
+    __ lw(e, Address(state, 16));
+
+    Label L_sha1_loop;
+    if (multi_block) {
+      __ BIND(L_sha1_loop);
+    }
+
+    sha1_preserve_prev_abcde(a, b, c, d, e, prev_ab, prev_cd, prev_e);
+
+    for (int round = 0; round < 80; round++) {
+      // prepare K't value
+      sha1_prepare_k(cur_k, round);
+
+      // prepare W't value
+      sha1_prepare_w(cur_w, ws, buf, round);
+
+      // one round process
+      sha1_process_round(a, b, c, d, e, cur_k, cur_w, t2, round);
+    }
+
+    // compute the intermediate hash value
+    sha1_calculate_im_hash(a, b, c, d, e, prev_ab, prev_cd, prev_e);
+
+    if (multi_block) {
+      int64_t block_bytes = 16 * 4;
+      __ addi(buf, buf, block_bytes);
+
+      __ bge(limit, buf, L_sha1_loop, true);
+    }
+
+    // store back the state.
+    __ zero_extend(a, a, 32);
+    __ slli(b, b, 32);
+    __ orr(a, a, b);
+    __ sd(a, Address(state, 0));
+    __ zero_extend(c, c, 32);
+    __ slli(d, d, 32);
+    __ orr(c, c, d);
+    __ sd(c, Address(state, 8));
+    __ sw(e, Address(state, 16));
+
+    // return offset
+    if (multi_block) {
+      __ sub(c_rarg0, buf, src);
+    }
+
+    __ pop_reg(saved_regs, sp);
+
+    __ leave();
+    __ ret();
+
+    return (address) start;
+  }
+
+
+
 #ifdef COMPILER2
 
 static const int64_t right_2_bits = right_n_bits(2);
@@ -5273,6 +5615,11 @@ static const int64_t right_3_bits = right_n_bits(3);
       StubRoutines::_chacha20Block = generate_chacha20Block();
     }
 
+    if (UseSHA1Intrinsics) {
+      StubRoutines::_sha1_implCompress     = generate_sha1_implCompress(false, "sha1_implCompress");
+      StubRoutines::_sha1_implCompressMB   = generate_sha1_implCompress(true, "sha1_implCompressMB");
+    }
+
 #endif // COMPILER2_OR_JVMCI
   }
 

src/hotspot/cpu/riscv/stubRoutines_riscv.hpp

@@ -39,7 +39,7 @@ enum platform_dependent_constants {
   // simply increase sizes if too small (assembler will crash if too small)
   _initial_stubs_code_size      = 10000,
   _continuation_stubs_code_size =  2000,
-  _compiler_stubs_code_size     = 15000 ZGC_ONLY(+5000),
+  _compiler_stubs_code_size     = 25000 ZGC_ONLY(+5000),
   _final_stubs_code_size        = 20000 ZGC_ONLY(+10000)
 };
 

src/hotspot/cpu/riscv/upcallLinker_riscv.cpp

@@ -267,9 +267,13 @@ address UpcallLinker::make_upcall_stub(jobject receiver, Method* entry,
   __ mov_metadata(xmethod, entry);
   __ sd(xmethod, Address(xthread, JavaThread::callee_target_offset())); // just in case callee is deoptimized
 
+  __ push_cont_fastpath(xthread);
+
   __ ld(t0, Address(xmethod, Method::from_compiled_offset()));
   __ jalr(t0);
 
+  __ pop_cont_fastpath(xthread);
+
   // return value shuffle
   if (!needs_return_buffer) {
 #ifdef ASSERT

src/hotspot/cpu/riscv/vm_version_riscv.cpp

@@ -149,16 +149,6 @@ void VM_Version::initialize() {
     FLAG_SET_DEFAULT(UseAESCTRIntrinsics, false);
   }
 
-  if (UseSHA1Intrinsics) {
-    warning("Intrinsics for SHA-1 crypto hash functions not available on this CPU.");
-    FLAG_SET_DEFAULT(UseSHA1Intrinsics, false);
-  }
-
-  if (UseSHA3Intrinsics) {
-    warning("Intrinsics for SHA3-224, SHA3-256, SHA3-384 and SHA3-512 crypto hash functions not available on this CPU.");
-    FLAG_SET_DEFAULT(UseSHA3Intrinsics, false);
-  }
-
   if (UseCRC32Intrinsics) {
     warning("CRC32 intrinsics are not available on this CPU.");
     FLAG_SET_DEFAULT(UseCRC32Intrinsics, false);
@@ -260,11 +250,8 @@ void VM_Version::initialize() {
   // NOTE: Make sure codes dependent on UseRVV are put after c2_initialize(),
   //       as there are extra checks inside it which could disable UseRVV
   //       in some situations.
-  if (UseZvkn && !UseRVV) {
-    FLAG_SET_DEFAULT(UseZvkn, false);
-    warning("Cannot enable Zvkn on cpu without RVV support.");
-  }
 
+  // ChaCha20
   if (UseRVV) {
     if (FLAG_IS_DEFAULT(UseChaCha20Intrinsics)) {
       FLAG_SET_DEFAULT(UseChaCha20Intrinsics, true);
@@ -276,29 +263,65 @@ void VM_Version::initialize() {
     FLAG_SET_DEFAULT(UseChaCha20Intrinsics, false);
   }
 
-  if (!UseZvkn && UseSHA) {
+  // SHA's
-    warning("SHA instructions are not available on this CPU");
+  if (FLAG_IS_DEFAULT(UseSHA)) {
-    FLAG_SET_DEFAULT(UseSHA, false);
-  } else if (UseZvkn && FLAG_IS_DEFAULT(UseSHA)) {
     FLAG_SET_DEFAULT(UseSHA, true);
   }
 
-  if (!UseSHA) {
+  // SHA-1, no RVV required though.
+  if (UseSHA) {
+    if (FLAG_IS_DEFAULT(UseSHA1Intrinsics)) {
+      FLAG_SET_DEFAULT(UseSHA1Intrinsics, true);
+    }
+  } else if (UseSHA1Intrinsics) {
+    warning("Intrinsics for SHA-1 crypto hash functions not available on this CPU.");
+    FLAG_SET_DEFAULT(UseSHA1Intrinsics, false);
+  }
+
+  // UseZvkn (depends on RVV) and SHA-2.
+  if (UseZvkn && !UseRVV) {
+    FLAG_SET_DEFAULT(UseZvkn, false);
+    warning("Cannot enable Zvkn on cpu without RVV support.");
+  }
+  // SHA-2, depends on Zvkn.
+  if (UseSHA) {
+    if (UseZvkn) {
+      if (FLAG_IS_DEFAULT(UseSHA256Intrinsics)) {
+        FLAG_SET_DEFAULT(UseSHA256Intrinsics, true);
+      }
+      if (FLAG_IS_DEFAULT(UseSHA512Intrinsics)) {
+        FLAG_SET_DEFAULT(UseSHA512Intrinsics, true);
+      }
+    } else {
+      if (UseSHA256Intrinsics) {
+        warning("Intrinsics for SHA-224 and SHA-256 crypto hash functions not available on this CPU, UseZvkn needed.");
+        FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
+      }
+      if (UseSHA512Intrinsics) {
+        warning("Intrinsics for SHA-384 and SHA-512 crypto hash functions not available on this CPU, UseZvkn needed.");
+        FLAG_SET_DEFAULT(UseSHA512Intrinsics, false);
+      }
+    }
+  } else {
     if (UseSHA256Intrinsics) {
-      warning("Intrinsics for SHA-224 and SHA-256 crypto hash functions not available on this CPU, UseZvkn needed.");
+      warning("Intrinsics for SHA-224 and SHA-256 crypto hash functions not available on this CPU, as UseSHA disabled.");
       FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
     }
     if (UseSHA512Intrinsics) {
-      warning("Intrinsics for SHA-384 and SHA-512 crypto hash functions not available on this CPU, UseZvkn needed.");
+      warning("Intrinsics for SHA-384 and SHA-512 crypto hash functions not available on this CPU, as UseSHA disabled.");
       FLAG_SET_DEFAULT(UseSHA512Intrinsics, false);
     }
-  } else {
+  }
-    if (FLAG_IS_DEFAULT(UseSHA256Intrinsics)) {
+
-       FLAG_SET_DEFAULT(UseSHA256Intrinsics, true);
+  // SHA-3
-    }
+  if (UseSHA3Intrinsics) {
-    if (FLAG_IS_DEFAULT(UseSHA512Intrinsics)) {
+    warning("Intrinsics for SHA3-224, SHA3-256, SHA3-384 and SHA3-512 crypto hash functions not available on this CPU.");
-      FLAG_SET_DEFAULT(UseSHA512Intrinsics, true);
+    FLAG_SET_DEFAULT(UseSHA3Intrinsics, false);
-    }
+  }
+
+  // UseSHA
+  if (!(UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA3Intrinsics || UseSHA512Intrinsics)) {
+    FLAG_SET_DEFAULT(UseSHA, false);
   }
 }
 

src/hotspot/cpu/s390/c1_LIRAssembler_s390.cpp

@@ -2382,7 +2382,7 @@ void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
                       op->len()->as_register(),
                       op->tmp1()->as_register(),
                       op->tmp2()->as_register(),
-                      arrayOopDesc::header_size(op->type()),
+                      arrayOopDesc::base_offset_in_bytes(op->type()),
                       type2aelembytes(op->type()),
                       op->klass()->as_register(),
                       *op->stub()->entry());

src/hotspot/cpu/s390/c1_MacroAssembler_s390.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2016, 2023 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -271,7 +271,7 @@ void C1_MacroAssembler::allocate_array(
   Register len,                        // array length
   Register t1,                         // temp register
   Register t2,                         // temp register
-  int      hdr_size,                   // object header size in words
+  int      base_offset_in_bytes,       // elements offset in bytes
   int      elt_size,                   // element size in bytes
   Register klass,                      // object klass
   Label&   slow_case                   // Continuation point if fast allocation fails.
@@ -297,8 +297,8 @@ void C1_MacroAssembler::allocate_array(
     case  8: z_sllg(arr_size, len, 3); break;
     default: ShouldNotReachHere();
   }
-  add2reg(arr_size, hdr_size * wordSize + MinObjAlignmentInBytesMask); // Add space for header & alignment.
+  add2reg(arr_size, base_offset_in_bytes + MinObjAlignmentInBytesMask); // Add space for header & alignment.
-  z_nill(arr_size, (~MinObjAlignmentInBytesMask) & 0xffff);            // Align array size.
+  z_nill(arr_size, (~MinObjAlignmentInBytesMask) & 0xffff);             // Align array size.
 
   try_allocate(obj, arr_size, 0, t1, slow_case);
 
@@ -308,9 +308,9 @@ void C1_MacroAssembler::allocate_array(
   Label done;
   Register object_fields = t1;
   Register Rzero = Z_R1_scratch;
-  z_aghi(arr_size, -(hdr_size * BytesPerWord));
+  z_aghi(arr_size, -base_offset_in_bytes);
   z_bre(done); // Jump if size of fields is zero.
-  z_la(object_fields, hdr_size * BytesPerWord, obj);
+  z_la(object_fields, base_offset_in_bytes, obj);
   z_xgr(Rzero, Rzero);
   initialize_body(object_fields, arr_size, Rzero);
   bind(done);

src/hotspot/cpu/s390/c1_MacroAssembler_s390.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2016, 2023 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -86,7 +86,7 @@
     Register len,                      // array length
     Register t1,                       // temp register
     Register t2,                       // temp register
-    int      hdr_size,                 // object header size in words
+    int      base_offset_in_bytes,     // elements offset in bytes
     int      elt_size,                 // element size in bytes
     Register klass,                    // object klass
     Label&   slow_case                 // Continuation point if fast allocation fails.

src/hotspot/cpu/s390/gc/g1/g1BarrierSetAssembler_s390.cpp

@@ -31,9 +31,9 @@
 #include "gc/g1/g1BarrierSetAssembler.hpp"
 #include "gc/g1/g1BarrierSetRuntime.hpp"
 #include "gc/g1/g1DirtyCardQueue.hpp"
+#include "gc/g1/g1HeapRegion.hpp"
 #include "gc/g1/g1SATBMarkQueueSet.hpp"
 #include "gc/g1/g1ThreadLocalData.hpp"
-#include "gc/g1/heapRegion.hpp"
 #include "interpreter/interp_masm.hpp"
 #include "runtime/jniHandles.hpp"
 #include "runtime/sharedRuntime.hpp"

src/hotspot/cpu/x86/c1_LIRAssembler_x86.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -1618,7 +1618,7 @@ void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
                       len,
                       tmp1,
                       tmp2,
-                      arrayOopDesc::header_size(op->type()),
+                      arrayOopDesc::base_offset_in_bytes(op->type()),
                       array_element_size(op->type()),
                       op->klass()->as_register(),
                       *op->stub()->entry());

src/hotspot/cpu/x86/c1_MacroAssembler_x86.cpp

@@ -186,6 +186,15 @@ void C1_MacroAssembler::initialize_header(Register obj, Register klass, Register
 
   if (len->is_valid()) {
     movl(Address(obj, arrayOopDesc::length_offset_in_bytes()), len);
+#ifdef _LP64
+    int base_offset = arrayOopDesc::length_offset_in_bytes() + BytesPerInt;
+    if (!is_aligned(base_offset, BytesPerWord)) {
+      assert(is_aligned(base_offset, BytesPerInt), "must be 4-byte aligned");
+      // Clear gap/first 4 bytes following the length field.
+      xorl(t1, t1);
+      movl(Address(obj, base_offset), t1);
+    }
+#endif
   }
 #ifdef _LP64
   else if (UseCompressedClassPointers) {
@@ -269,7 +278,7 @@ void C1_MacroAssembler::initialize_object(Register obj, Register klass, Register
   verify_oop(obj);
 }
 
-void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1, Register t2, int header_size, Address::ScaleFactor f, Register klass, Label& slow_case) {
+void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1, Register t2, int base_offset_in_bytes, Address::ScaleFactor f, Register klass, Label& slow_case) {
   assert(obj == rax, "obj must be in rax, for cmpxchg");
   assert_different_registers(obj, len, t1, t2, klass);
 
@@ -282,7 +291,7 @@ void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1,
 
   const Register arr_size = t2; // okay to be the same
   // align object end
-  movptr(arr_size, header_size * BytesPerWord + MinObjAlignmentInBytesMask);
+  movptr(arr_size, base_offset_in_bytes + MinObjAlignmentInBytesMask);
   lea(arr_size, Address(arr_size, len, f));
   andptr(arr_size, ~MinObjAlignmentInBytesMask);
 
@@ -292,7 +301,10 @@ void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1,
 
   // clear rest of allocated space
   const Register len_zero = len;
-  initialize_body(obj, arr_size, header_size * BytesPerWord, len_zero);
+  // Align-up to word boundary, because we clear the 4 bytes potentially
+  // following the length field in initialize_header().
+  int base_offset = align_up(base_offset_in_bytes, BytesPerWord);
+  initialize_body(obj, arr_size, base_offset, len_zero);
 
   if (CURRENT_ENV->dtrace_alloc_probes()) {
     assert(obj == rax, "must be");

src/hotspot/cpu/x86/c1_MacroAssembler_x86.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 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
@@ -89,7 +89,7 @@
   // header_size: size of object header in words
   // f          : element scale factor
   // slow_case  : exit to slow case implementation if fast allocation fails
-  void allocate_array(Register obj, Register len, Register t, Register t2, int header_size, Address::ScaleFactor f, Register klass, Label& slow_case);
+  void allocate_array(Register obj, Register len, Register t, Register t2, int base_offset_in_bytes, Address::ScaleFactor f, Register klass, Label& slow_case);
 
   int  rsp_offset() const { return _rsp_offset; }
   void set_rsp_offset(int n) { _rsp_offset = n; }

src/hotspot/cpu/x86/gc/g1/g1BarrierSetAssembler_x86.cpp

@@ -28,8 +28,8 @@
 #include "gc/g1/g1BarrierSetAssembler.hpp"
 #include "gc/g1/g1BarrierSetRuntime.hpp"
 #include "gc/g1/g1CardTable.hpp"
+#include "gc/g1/g1HeapRegion.hpp"
 #include "gc/g1/g1ThreadLocalData.hpp"
-#include "gc/g1/heapRegion.hpp"
 #include "interpreter/interp_masm.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "utilities/debug.hpp"

src/hotspot/cpu/x86/upcallLinker_x86_64.cpp

@@ -300,8 +300,12 @@ address UpcallLinker::make_upcall_stub(jobject receiver, Method* entry,
   __ mov_metadata(rbx, entry);
   __ movptr(Address(r15_thread, JavaThread::callee_target_offset()), rbx); // just in case callee is deoptimized
 
+  __ push_cont_fastpath();
+
   __ call(Address(rbx, Method::from_compiled_offset()));
 
+  __ pop_cont_fastpath();
+
   // return value shuffle
   if (!needs_return_buffer) {
 #ifdef ASSERT

src/hotspot/cpu/x86/x86_64.ad

@@ -4459,7 +4459,7 @@ instruct loadD(regD dst, memory mem)
 
 // max = java.lang.Math.max(float a, float b)
 instruct maxF_reg(legRegF dst, legRegF a, legRegF b, legRegF tmp, legRegF atmp, legRegF btmp) %{
-  predicate(UseAVX > 0 && !SuperWord::is_reduction(n));
+  predicate(UseAVX > 0 && !VLoopReductions::is_reduction(n));
   match(Set dst (MaxF a b));
   effect(USE a, USE b, TEMP tmp, TEMP atmp, TEMP btmp);
   format %{ "maxF $dst, $a, $b \t! using tmp, atmp and btmp as TEMP" %}
@@ -4470,7 +4470,7 @@ instruct maxF_reg(legRegF dst, legRegF a, legRegF b, legRegF tmp, legRegF atmp,
 %}
 
 instruct maxF_reduction_reg(legRegF dst, legRegF a, legRegF b, legRegF xmmt, rRegI tmp, rFlagsReg cr) %{
-  predicate(UseAVX > 0 && SuperWord::is_reduction(n));
+  predicate(UseAVX > 0 && VLoopReductions::is_reduction(n));
   match(Set dst (MaxF a b));
   effect(USE a, USE b, TEMP xmmt, TEMP tmp, KILL cr);
 
@@ -4484,7 +4484,7 @@ instruct maxF_reduction_reg(legRegF dst, legRegF a, legRegF b, legRegF xmmt, rRe
 
 // max = java.lang.Math.max(double a, double b)
 instruct maxD_reg(legRegD dst, legRegD a, legRegD b, legRegD tmp, legRegD atmp, legRegD btmp) %{
-  predicate(UseAVX > 0 && !SuperWord::is_reduction(n));
+  predicate(UseAVX > 0 && !VLoopReductions::is_reduction(n));
   match(Set dst (MaxD a b));
   effect(USE a, USE b, TEMP atmp, TEMP btmp, TEMP tmp);
   format %{ "maxD $dst, $a, $b \t! using tmp, atmp and btmp as TEMP" %}
@@ -4495,7 +4495,7 @@ instruct maxD_reg(legRegD dst, legRegD a, legRegD b, legRegD tmp, legRegD atmp,
 %}
 
 instruct maxD_reduction_reg(legRegD dst, legRegD a, legRegD b, legRegD xmmt, rRegL tmp, rFlagsReg cr) %{
-  predicate(UseAVX > 0 && SuperWord::is_reduction(n));
+  predicate(UseAVX > 0 && VLoopReductions::is_reduction(n));
   match(Set dst (MaxD a b));
   effect(USE a, USE b, TEMP xmmt, TEMP tmp, KILL cr);
 
@@ -4509,7 +4509,7 @@ instruct maxD_reduction_reg(legRegD dst, legRegD a, legRegD b, legRegD xmmt, rRe
 
 // min = java.lang.Math.min(float a, float b)
 instruct minF_reg(legRegF dst, legRegF a, legRegF b, legRegF tmp, legRegF atmp, legRegF btmp) %{
-  predicate(UseAVX > 0 && !SuperWord::is_reduction(n));
+  predicate(UseAVX > 0 && !VLoopReductions::is_reduction(n));
   match(Set dst (MinF a b));
   effect(USE a, USE b, TEMP tmp, TEMP atmp, TEMP btmp);
   format %{ "minF $dst, $a, $b \t! using tmp, atmp and btmp as TEMP" %}
@@ -4520,7 +4520,7 @@ instruct minF_reg(legRegF dst, legRegF a, legRegF b, legRegF tmp, legRegF atmp,
 %}
 
 instruct minF_reduction_reg(legRegF dst, legRegF a, legRegF b, legRegF xmmt, rRegI tmp, rFlagsReg cr) %{
-  predicate(UseAVX > 0 && SuperWord::is_reduction(n));
+  predicate(UseAVX > 0 && VLoopReductions::is_reduction(n));
   match(Set dst (MinF a b));
   effect(USE a, USE b, TEMP xmmt, TEMP tmp, KILL cr);
 
@@ -4534,7 +4534,7 @@ instruct minF_reduction_reg(legRegF dst, legRegF a, legRegF b, legRegF xmmt, rRe
 
 // min = java.lang.Math.min(double a, double b)
 instruct minD_reg(legRegD dst, legRegD a, legRegD b, legRegD tmp, legRegD atmp, legRegD btmp) %{
-  predicate(UseAVX > 0 && !SuperWord::is_reduction(n));
+  predicate(UseAVX > 0 && !VLoopReductions::is_reduction(n));
   match(Set dst (MinD a b));
   effect(USE a, USE b, TEMP tmp, TEMP atmp, TEMP btmp);
     format %{ "minD $dst, $a, $b \t! using tmp, atmp and btmp as TEMP" %}
@@ -4545,7 +4545,7 @@ instruct minD_reg(legRegD dst, legRegD a, legRegD b, legRegD tmp, legRegD atmp,
 %}
 
 instruct minD_reduction_reg(legRegD dst, legRegD a, legRegD b, legRegD xmmt, rRegL tmp, rFlagsReg cr) %{
-  predicate(UseAVX > 0 && SuperWord::is_reduction(n));
+  predicate(UseAVX > 0 && VLoopReductions::is_reduction(n));
   match(Set dst (MinD a b));
   effect(USE a, USE b, TEMP xmmt, TEMP tmp, KILL cr);
 

src/hotspot/os/aix/os_aix.cpp

@@ -1127,10 +1127,9 @@ bool os::dll_address_to_library_name(address addr, char* buf,
   return true;
 }
 
-void *os::dll_load(const char *filename, char *ebuf, int ebuflen) {
+static void* dll_load_library(const char *filename, char *ebuf, int ebuflen) {
 
   log_info(os)("attempting shared library load of %s", filename);
-
   if (ebuf && ebuflen > 0) {
     ebuf[0] = '\0';
     ebuf[ebuflen - 1] = '\0';
@@ -1178,6 +1177,26 @@ void *os::dll_load(const char *filename, char *ebuf, int ebuflen) {
   }
   return nullptr;
 }
+// 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 = nullptr;
+  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 == nullptr && pointer_to_dot != nullptr && 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);
+  return result;
+}
 
 void os::print_dll_info(outputStream *st) {
   st->print_cr("Dynamic libraries:");

src/hotspot/os_cpu/bsd_aarch64/copy_bsd_aarch64.S

@@ -28,6 +28,11 @@
         .global CFUNC(_Copy_conjoint_words)
         .global CFUNC(_Copy_disjoint_words)
 
+#ifdef __APPLE__
+        .private_extern CFUNC(_Copy_conjoint_words)
+        .private_extern CFUNC(_Copy_disjoint_words)
+#endif
+
 s       .req    x0
 d       .req    x1
 count   .req    x2

src/hotspot/os_cpu/bsd_aarch64/safefetch_bsd_aarch64.S

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2022 SAP SE. All rights reserved.
- * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2022, 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
@@ -39,6 +39,15 @@
     .global SYMBOL(_SafeFetch32_fault)
     .global SYMBOL(_SafeFetch32_continuation)
 
+#ifdef __APPLE__
+    .private_extern SYMBOL(SafeFetchN_impl)
+    .private_extern SYMBOL(_SafeFetchN_fault)
+    .private_extern SYMBOL(_SafeFetchN_continuation)
+    .private_extern SYMBOL(SafeFetch32_impl)
+    .private_extern SYMBOL(_SafeFetch32_fault)
+    .private_extern SYMBOL(_SafeFetch32_continuation)
+#endif
+
     # Support for int SafeFetch32(int* address, int defaultval);
     #
     #  x0 : address

src/hotspot/os_cpu/bsd_x86/bsd_x86_32.S

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2004, 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2004, 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
@@ -32,6 +32,7 @@
 #endif
 
         .globl SYMBOL(fixcw)
+        .globl SYMBOL(SpinPause)
 
         # NOTE WELL!  The _Copy functions are called directly
         # from server-compiler-generated code via CallLeafNoFP,
@@ -50,6 +51,20 @@
         .globl SYMBOL(_Atomic_cmpxchg_long)
         .globl SYMBOL(_Atomic_move_long)
 
+#ifdef __APPLE__
+        .private_extern SYMBOL(fixcw)
+        .private_extern SYMBOL(SpinPause)
+        .private_extern SYMBOL(_Copy_arrayof_conjoint_bytes)
+        .private_extern SYMBOL(_Copy_conjoint_jshorts_atomic)
+        .private_extern SYMBOL(_Copy_arrayof_conjoint_jshorts)
+        .private_extern SYMBOL(_Copy_conjoint_jints_atomic)
+        .private_extern SYMBOL(_Copy_arrayof_conjoint_jints)
+        .private_extern SYMBOL(_Copy_conjoint_jlongs_atomic)
+        .private_extern SYMBOL(_mmx_Copy_arrayof_conjoint_jshorts)
+        .private_extern SYMBOL(_Atomic_cmpxchg_long)
+        .private_extern SYMBOL(_Atomic_move_long)
+#endif
+
         .text
 
 # Support for void os::Solaris::init_thread_fpu_state() in os_solaris_i486.cpp
@@ -62,7 +77,6 @@ SYMBOL(fixcw):
         popl     %eax
         ret
 
-        .globl  SYMBOL(SpinPause)
         ELF_TYPE(SpinPause,@function)
         .p2align 4,,15
 SYMBOL(SpinPause):

src/hotspot/os_cpu/bsd_x86/bsd_x86_64.S

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2004, 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
@@ -31,22 +31,33 @@
 #endif
 
         # NOTE WELL!  The _Copy functions are called directly
-	# from server-compiler-generated code via CallLeafNoFP,
+        # from server-compiler-generated code via CallLeafNoFP,
-	# which means that they *must* either not use floating
+        # which means that they *must* either not use floating
-	# point or use it in the same manner as does the server
+        # point or use it in the same manner as does the server
-	# compiler.
+        # compiler.
 
+        .globl SYMBOL(SpinPause)
         .globl SYMBOL(_Copy_arrayof_conjoint_bytes)
-	.globl SYMBOL(_Copy_arrayof_conjoint_jshorts)
+        .globl SYMBOL(_Copy_arrayof_conjoint_jshorts)
         .globl SYMBOL(_Copy_conjoint_jshorts_atomic)
         .globl SYMBOL(_Copy_arrayof_conjoint_jints)
         .globl SYMBOL(_Copy_conjoint_jints_atomic)
         .globl SYMBOL(_Copy_arrayof_conjoint_jlongs)
         .globl SYMBOL(_Copy_conjoint_jlongs_atomic)
 
-	.text
+#ifdef __APPLE__
+        .private_extern SYMBOL(SpinPause)
+        .private_extern SYMBOL(_Copy_arrayof_conjoint_bytes)
+        .private_extern SYMBOL(_Copy_arrayof_conjoint_jshorts)
+        .private_extern SYMBOL(_Copy_conjoint_jshorts_atomic)
+        .private_extern SYMBOL(_Copy_arrayof_conjoint_jints)
+        .private_extern SYMBOL(_Copy_conjoint_jints_atomic)
+        .private_extern SYMBOL(_Copy_arrayof_conjoint_jlongs)
+        .private_extern SYMBOL(_Copy_conjoint_jlongs_atomic)
+#endif
+
+        .text
 
-        .globl SYMBOL(SpinPause)
         .p2align 4,,15
         ELF_TYPE(SpinPause,@function)
 SYMBOL(SpinPause):
@@ -63,7 +74,7 @@ SYMBOL(SpinPause):
         # rdx - count, treated as ssize_t
         #
         .p2align 4,,15
-	ELF_TYPE(_Copy_arrayof_conjoint_bytes,@function)
+        ELF_TYPE(_Copy_arrayof_conjoint_bytes,@function)
 SYMBOL(_Copy_arrayof_conjoint_bytes):
         movq     %rdx,%r8             # byte count
         shrq     $3,%rdx              # qword count
@@ -165,8 +176,8 @@ acb_CopyLeft:
         # rdx - count, treated as ssize_t
         #
         .p2align 4,,15
-	ELF_TYPE(_Copy_arrayof_conjoint_jshorts,@function)
+        ELF_TYPE(_Copy_arrayof_conjoint_jshorts,@function)
-	ELF_TYPE(_Copy_conjoint_jshorts_atomic,@function)
+        ELF_TYPE(_Copy_conjoint_jshorts_atomic,@function)
 SYMBOL(_Copy_arrayof_conjoint_jshorts):
 SYMBOL(_Copy_conjoint_jshorts_atomic):
         movq     %rdx,%r8             # word count
@@ -255,8 +266,8 @@ acs_CopyLeft:
         # rdx - count, treated as ssize_t
         #
         .p2align 4,,15
-	ELF_TYPE(_Copy_arrayof_conjoint_jints,@function)
+        ELF_TYPE(_Copy_arrayof_conjoint_jints,@function)
-	ELF_TYPE(_Copy_conjoint_jints_atomic,@function)
+        ELF_TYPE(_Copy_conjoint_jints_atomic,@function)
 SYMBOL(_Copy_arrayof_conjoint_jints):
 SYMBOL(_Copy_conjoint_jints_atomic):
         movq     %rdx,%r8             # dword count
@@ -334,8 +345,8 @@ aci_CopyLeft:
         # rdx - count, treated as ssize_t
         #
         .p2align 4,,15
-	ELF_TYPE(_Copy_arrayof_conjoint_jlongs,@function)
+        ELF_TYPE(_Copy_arrayof_conjoint_jlongs,@function)
-	ELF_TYPE(_Copy_conjoint_jlongs_atomic,@function)
+        ELF_TYPE(_Copy_conjoint_jlongs_atomic,@function)
 SYMBOL(_Copy_arrayof_conjoint_jlongs):
 SYMBOL(_Copy_conjoint_jlongs_atomic):
         cmpq     %rdi,%rsi

src/hotspot/os_cpu/bsd_x86/safefetch_bsd_x86_64.S

@@ -1,6 +1,6 @@
 #
 # Copyright (c) 2022 SAP SE. All rights reserved.
-# Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022, 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
@@ -38,13 +38,22 @@
     .globl SYMBOL(_SafeFetch32_continuation)
     .globl SYMBOL(_SafeFetchN_continuation)
 
+#ifdef __APPLE__
+    .private_extern SYMBOL(SafeFetch32_impl)
+    .private_extern SYMBOL(SafeFetchN_impl)
+    .private_extern SYMBOL(_SafeFetch32_fault)
+    .private_extern SYMBOL(_SafeFetchN_fault)
+    .private_extern SYMBOL(_SafeFetch32_continuation)
+    .private_extern SYMBOL(_SafeFetchN_continuation)
+#endif
+
     .text
 
     # Support for int SafeFetch32(int* address, int defaultval);
     #
     #  %rdi : address
     #  %esi : defaultval
-	ELF_TYPE(SafeFetch32_impl,@function)
+    ELF_TYPE(SafeFetch32_impl,@function)
 SYMBOL(SafeFetch32_impl:)
 SYMBOL(_SafeFetch32_fault:)
     movl (%rdi), %eax

src/hotspot/os_cpu/linux_aarch64/atomic_linux_aarch64.S

@@ -24,6 +24,7 @@
         .text
 
         .globl aarch64_atomic_fetch_add_8_default_impl
+        .hidden aarch64_atomic_fetch_add_8_default_impl
         .align 5
 aarch64_atomic_fetch_add_8_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -40,6 +41,7 @@ aarch64_atomic_fetch_add_8_default_impl:
         ret
 
         .globl aarch64_atomic_fetch_add_4_default_impl
+        .hidden aarch64_atomic_fetch_add_4_default_impl
         .align 5
 aarch64_atomic_fetch_add_4_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -56,6 +58,7 @@ aarch64_atomic_fetch_add_4_default_impl:
         ret
 
         .global aarch64_atomic_fetch_add_8_relaxed_default_impl
+        .hidden aarch64_atomic_fetch_add_8_relaxed_default_impl
         .align 5
 aarch64_atomic_fetch_add_8_relaxed_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -71,6 +74,7 @@ aarch64_atomic_fetch_add_8_relaxed_default_impl:
         ret
 
         .global aarch64_atomic_fetch_add_4_relaxed_default_impl
+        .hidden aarch64_atomic_fetch_add_4_relaxed_default_impl
         .align 5
 aarch64_atomic_fetch_add_4_relaxed_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -86,6 +90,7 @@ aarch64_atomic_fetch_add_4_relaxed_default_impl:
         ret
 
         .globl aarch64_atomic_xchg_4_default_impl
+        .hidden aarch64_atomic_xchg_4_default_impl
         .align 5
 aarch64_atomic_xchg_4_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -101,6 +106,7 @@ aarch64_atomic_xchg_4_default_impl:
         ret
 
         .globl aarch64_atomic_xchg_8_default_impl
+        .hidden aarch64_atomic_xchg_8_default_impl
         .align 5
 aarch64_atomic_xchg_8_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -116,6 +122,7 @@ aarch64_atomic_xchg_8_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_1_default_impl
+        .hidden aarch64_atomic_cmpxchg_1_default_impl
         .align 5
 aarch64_atomic_cmpxchg_1_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -136,6 +143,7 @@ aarch64_atomic_cmpxchg_1_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_4_default_impl
+        .hidden aarch64_atomic_cmpxchg_4_default_impl
         .align 5
 aarch64_atomic_cmpxchg_4_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -155,6 +163,7 @@ aarch64_atomic_cmpxchg_4_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_8_default_impl
+        .hidden aarch64_atomic_cmpxchg_8_default_impl
         .align 5
 aarch64_atomic_cmpxchg_8_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -174,6 +183,7 @@ aarch64_atomic_cmpxchg_8_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_4_release_default_impl
+        .hidden aarch64_atomic_cmpxchg_4_release_default_impl
         .align 5
 aarch64_atomic_cmpxchg_4_release_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -191,6 +201,7 @@ aarch64_atomic_cmpxchg_4_release_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_8_release_default_impl
+        .hidden aarch64_atomic_cmpxchg_8_release_default_impl
         .align 5
 aarch64_atomic_cmpxchg_8_release_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -208,6 +219,7 @@ aarch64_atomic_cmpxchg_8_release_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_4_seq_cst_default_impl
+        .hidden aarch64_atomic_cmpxchg_4_seq_cst_default_impl
         .align 5
 aarch64_atomic_cmpxchg_4_seq_cst_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -225,6 +237,7 @@ aarch64_atomic_cmpxchg_4_seq_cst_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_8_seq_cst_default_impl
+        .hidden aarch64_atomic_cmpxchg_8_seq_cst_default_impl
         .align 5
 aarch64_atomic_cmpxchg_8_seq_cst_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -242,6 +255,7 @@ aarch64_atomic_cmpxchg_8_seq_cst_default_impl:
         ret
 
 .globl aarch64_atomic_cmpxchg_1_relaxed_default_impl
+.hidden aarch64_atomic_cmpxchg_1_relaxed_default_impl
         .align 5
 aarch64_atomic_cmpxchg_1_relaxed_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -260,6 +274,7 @@ aarch64_atomic_cmpxchg_1_relaxed_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_4_relaxed_default_impl
+        .hidden aarch64_atomic_cmpxchg_4_relaxed_default_impl
         .align 5
 aarch64_atomic_cmpxchg_4_relaxed_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS
@@ -277,6 +292,7 @@ aarch64_atomic_cmpxchg_4_relaxed_default_impl:
         ret
 
         .globl aarch64_atomic_cmpxchg_8_relaxed_default_impl
+        .hidden aarch64_atomic_cmpxchg_8_relaxed_default_impl
         .align 5
 aarch64_atomic_cmpxchg_8_relaxed_default_impl:
 #ifdef __ARM_FEATURE_ATOMICS

src/hotspot/os_cpu/linux_aarch64/copy_linux_aarch64.S

@@ -24,6 +24,9 @@
         .global _Copy_conjoint_words
         .global _Copy_disjoint_words
 
+        .hidden _Copy_conjoint_words
+        .hidden _Copy_disjoint_words
+
 s       .req    x0
 d       .req    x1
 count   .req    x2

src/hotspot/os_cpu/linux_aarch64/safefetch_linux_aarch64.S

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2022 SAP SE. All rights reserved.
- * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2022, 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
@@ -30,6 +30,13 @@
     .globl _SafeFetch32_fault
     .globl _SafeFetch32_continuation
 
+    .hidden SafeFetchN_impl
+    .hidden _SafeFetchN_fault
+    .hidden _SafeFetchN_continuation
+    .hidden SafeFetch32_impl
+    .hidden _SafeFetch32_fault
+    .hidden _SafeFetch32_continuation
+
     # Support for int SafeFetch32(int* address, int defaultval);
     #
     #  x0 : address

src/hotspot/os_cpu/linux_aarch64/threadLS_linux_aarch64.S

@@ -25,22 +25,23 @@
         // Clobber x1, flags.
         // All other registers are preserved,
 
-	.global	_ZN10JavaThread25aarch64_get_thread_helperEv
+        .global	_ZN10JavaThread25aarch64_get_thread_helperEv
-	.type	_ZN10JavaThread25aarch64_get_thread_helperEv, %function
+        .hidden	_ZN10JavaThread25aarch64_get_thread_helperEv
+        .type	_ZN10JavaThread25aarch64_get_thread_helperEv, %function
 
 _ZN10JavaThread25aarch64_get_thread_helperEv:
-	hint #0x19      // paciasp
+        hint #0x19      // paciasp
-	stp x29, x30, [sp, -16]!
+        stp x29, x30, [sp, -16]!
-	adrp x0, :tlsdesc:_ZN6Thread12_thr_currentE
+        adrp x0, :tlsdesc:_ZN6Thread12_thr_currentE
-	ldr x1, [x0, #:tlsdesc_lo12:_ZN6Thread12_thr_currentE]
+        ldr x1, [x0, #:tlsdesc_lo12:_ZN6Thread12_thr_currentE]
-	add x0, x0, :tlsdesc_lo12:_ZN6Thread12_thr_currentE
+        add x0, x0, :tlsdesc_lo12:_ZN6Thread12_thr_currentE
-	.tlsdesccall _ZN6Thread12_thr_currentE
+        .tlsdesccall _ZN6Thread12_thr_currentE
-	blr x1
+        blr x1
-	mrs x1, tpidr_el0
+        mrs x1, tpidr_el0
-	add x0, x1, x0
+        add x0, x1, x0
-	ldr x0, [x0]
+        ldr x0, [x0]
-	ldp x29, x30, [sp], 16
+        ldp x29, x30, [sp], 16
-	hint #0x1d      // autiasp
+        hint #0x1d      // autiasp
-	ret
+        ret
 
-	.size _ZN10JavaThread25aarch64_get_thread_helperEv, .-_ZN10JavaThread25aarch64_get_thread_helperEv
+        .size _ZN10JavaThread25aarch64_get_thread_helperEv, .-_ZN10JavaThread25aarch64_get_thread_helperEv

src/hotspot/os_cpu/linux_arm/linux_arm_32.S

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2008, 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2008, 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
@@ -23,38 +23,46 @@
 
 
         # NOTE WELL!  The _Copy functions are called directly
-	# from server-compiler-generated code via CallLeafNoFP,
+        # from server-compiler-generated code via CallLeafNoFP,
-	# which means that they *must* either not use floating
+        # which means that they *must* either not use floating
-	# point or use it in the same manner as does the server
+        # point or use it in the same manner as does the server
-	# compiler.
+        # compiler.
 
-        .globl _Copy_conjoint_bytes
+        .globl  SpinPause
-	.type _Copy_conjoint_bytes, %function
+        .hidden  SpinPause
+        .type SpinPause, %function
         .globl _Copy_arrayof_conjoint_bytes
-	.type _Copy_arrayof_conjoint_bytes, %function
+        .hidden _Copy_arrayof_conjoint_bytes
-	.globl _Copy_disjoint_words
+        .type _Copy_arrayof_conjoint_bytes, %function
-	.type _Copy_disjoint_words, %function
+        .globl _Copy_disjoint_words
-	.globl _Copy_conjoint_words
+        .hidden _Copy_disjoint_words
-	.type _Copy_conjoint_words, %function
+        .type _Copy_disjoint_words, %function
+        .globl _Copy_conjoint_words
+        .hidden _Copy_conjoint_words
+        .type _Copy_conjoint_words, %function
         .globl _Copy_conjoint_jshorts_atomic
-	.type _Copy_conjoint_jshorts_atomic, %function
+        .hidden _Copy_conjoint_jshorts_atomic
-	.globl _Copy_arrayof_conjoint_jshorts
+        .type _Copy_conjoint_jshorts_atomic, %function
-	.type _Copy_arrayof_conjoint_jshorts, %function
+        .globl _Copy_arrayof_conjoint_jshorts
+        .hidden _Copy_arrayof_conjoint_jshorts
+        .type _Copy_arrayof_conjoint_jshorts, %function
         .globl _Copy_conjoint_jints_atomic
-	.type _Copy_conjoint_jints_atomic, %function
+        .hidden _Copy_conjoint_jints_atomic
+        .type _Copy_conjoint_jints_atomic, %function
         .globl _Copy_arrayof_conjoint_jints
-	.type _Copy_arrayof_conjoint_jints, %function
+        .hidden _Copy_arrayof_conjoint_jints
-	.globl _Copy_conjoint_jlongs_atomic
+        .type _Copy_arrayof_conjoint_jints, %function
-	.type _Copy_conjoint_jlongs_atomic, %function
+        .globl _Copy_conjoint_jlongs_atomic
-	.globl _Copy_arrayof_conjoint_jlongs
+        .hidden _Copy_conjoint_jlongs_atomic
-	.type _Copy_arrayof_conjoint_jlongs, %function
+        .type _Copy_conjoint_jlongs_atomic, %function
+        .globl _Copy_arrayof_conjoint_jlongs
+        .hidden _Copy_arrayof_conjoint_jlongs
+        .type _Copy_arrayof_conjoint_jlongs, %function
 
 from	.req	r0
 to	.req	r1
 
-	.text
+        .text
-        .globl  SpinPause
-        .type SpinPause, %function
 SpinPause:
         bx      LR
 
@@ -81,17 +89,17 @@ _Copy_disjoint_words:
         .align 3
 dw_f2b_loop_32:
         subs    r2, #32
-	blt	dw_f2b_loop_32_finish
+        blt	dw_f2b_loop_32_finish
         ldmia from!, {r3 - r9, ip}
         nop
-	pld     [from]
+        pld     [from]
         stmia to!, {r3 - r9, ip}
         bgt     dw_f2b_loop_32
 dw_f2b_loop_32_finish:
         addlts  r2, #32
         beq     disjoint_words_finish
         cmp     r2, #16
-	blt	disjoint_words_small
+        blt	disjoint_words_small
         ldmia from!, {r3 - r6}
         subge   r2, r2, #16
         stmia to!, {r3 - r6}
@@ -116,8 +124,8 @@ disjoint_words_finish:
 _Copy_conjoint_words:
         stmdb    sp!, {r3 - r9, ip}
 
-	cmp	r2, #0
+        cmp	r2, #0
-	beq	conjoint_words_finish
+        beq	conjoint_words_finish
 
         pld     [from, #0]
         cmp     r2, #12
@@ -129,17 +137,17 @@ _Copy_conjoint_words:
         .align 3
 cw_f2b_loop_32:
         subs    r2, #32
-	blt	cw_f2b_loop_32_finish
+        blt	cw_f2b_loop_32_finish
         ldmia from!, {r3 - r9, ip}
         nop
-	pld     [from]
+        pld     [from]
         stmia to!, {r3 - r9, ip}
         bgt     cw_f2b_loop_32
 cw_f2b_loop_32_finish:
         addlts  r2, #32
         beq     conjoint_words_finish
         cmp     r2, #16
-	blt	conjoint_words_small
+        blt	conjoint_words_small
         ldmia from!, {r3 - r6}
         subge   r2, r2, #16
         stmia to!, {r3 - r6}
@@ -154,7 +162,7 @@ conjoint_words_small:
         strgt   r9, [to], #4
         b       conjoint_words_finish
 
-	# Src and dest overlap, copy in a descending order
+        # Src and dest overlap, copy in a descending order
 cw_b2f_copy:
         add     from, r2
         pld     [from, #-32]
@@ -162,17 +170,17 @@ cw_b2f_copy:
         .align 3
 cw_b2f_loop_32:
         subs    r2, #32
-	blt	cw_b2f_loop_32_finish
+        blt	cw_b2f_loop_32_finish
         ldmdb from!, {r3-r9,ip}
         nop
-	pld     [from, #-32]
+        pld     [from, #-32]
         stmdb to!, {r3-r9,ip}
         bgt     cw_b2f_loop_32
 cw_b2f_loop_32_finish:
         addlts  r2, #32
         beq     conjoint_words_finish
         cmp     r2, #16
-	blt	cw_b2f_copy_small
+        blt	cw_b2f_copy_small
         ldmdb from!, {r3 - r6}
         subge   r2, r2, #16
         stmdb to!, {r3 - r6}
@@ -196,8 +204,8 @@ conjoint_words_finish:
 _Copy_conjoint_jshorts_atomic:
         stmdb   sp!, {r3 - r9, ip}
 
-	cmp	r2, #0
+        cmp	r2, #0
-	beq	conjoint_shorts_finish	
+        beq	conjoint_shorts_finish
 
         subs    r3, to, from
         cmphi   r2, r3
@@ -210,11 +218,11 @@ _Copy_conjoint_jshorts_atomic:
         ands    r3, from, #3
         bne     cs_f2b_src_u
 
-	# Aligned source address
+        # Aligned source address
         .align 3
 cs_f2b_loop_32:
         subs    r2, #32
-	blt	cs_f2b_loop_32_finish
+        blt	cs_f2b_loop_32_finish
         ldmia from!, {r3 - r9, ip}
         nop
         pld     [from]
@@ -244,14 +252,14 @@ cs_f2b_4:
         strgth  r5, [to], #2
         b       conjoint_shorts_finish
 
-	# Destination not aligned
+        # Destination not aligned
 cs_f2b_dest_u:
         ldrh    r3, [from], #2
         subs    r2, #2
         strh    r3, [to], #2
         beq     conjoint_shorts_finish
 
-	# Check to see if source is not aligned ether
+        # Check to see if source is not aligned ether
         ands    r3, from, #3
         beq     cs_f2b_loop_32
 
@@ -259,11 +267,11 @@ cs_f2b_src_u:
         cmp     r2, #16
         blt     cs_f2b_8_u
 
-	# Load 2 first bytes to r7 and make src ptr word aligned
+        # Load 2 first bytes to r7 and make src ptr word aligned
         bic     from, #3
         ldr     r7, [from], #4
 
-	# Destination aligned, source not
+        # Destination aligned, source not
         mov     r8, r2, lsr #4
         .align 3
 cs_f2b_16_u_loop:
@@ -306,7 +314,7 @@ cs_f2b_4_u:
         strgth  r5, [to], #2
         b       conjoint_shorts_finish
 
-	# Src and dest overlap, copy in a descending order
+        # Src and dest overlap, copy in a descending order
 cs_b2f_copy:
         add     from, r2
         pld     [from, #-32]
@@ -319,7 +327,7 @@ cs_b2f_copy:
         .align 3
 cs_b2f_loop_32:
         subs    r2, #32
-	blt	cs_b2f_loop_32_finish
+        blt	cs_b2f_loop_32_finish
         ldmdb from!, {r3-r9,ip}
         nop
         pld     [from, #-32]
@@ -359,16 +367,16 @@ cs_b2f_all_copy:
         strgth  r5, [to, #-2]!
         b       conjoint_shorts_finish
 
-	# Destination not aligned
+        # Destination not aligned
 cs_b2f_dest_u:
         ldrh    r3, [from, #-2]!
         strh    r3, [to, #-2]!
         sub     r2, #2
-	# Check source alignment as well
+        # Check source alignment as well
         ands    r3, from, #3
         beq     cs_b2f_loop_32
 
-	# Source not aligned
+        # Source not aligned
 cs_b2f_src_u:
         bic     from, #3
         .align 3
@@ -393,7 +401,7 @@ cs_b2f_16_loop_u:
 cs_b2f_16_loop_u_finished:
         addlts  r2, #16
         ldr     r3, [from]
-	cmp     r2, #10
+        cmp     r2, #10
         blt     cs_b2f_2_u_loop
         ldmdb   from!, {r4 - r5}
         mov     r6, r4, lsr #16
@@ -402,7 +410,7 @@ cs_b2f_16_loop_u_finished:
         orr     r7, r7, r3, lsl #16
         stmdb   to!, {r6-r7}
         sub     r2, #8
-	.align 3
+        .align 3
 cs_b2f_2_u_loop:
         subs    r2, #2
         ldrh    r3, [from], #-2
@@ -434,8 +442,8 @@ _Copy_conjoint_jlongs_atomic:
 _Copy_arrayof_conjoint_jlongs:
         stmdb    sp!, {r3 - r9, ip}
 
-	cmp	r2, #0
+        cmp	r2, #0
-	beq	conjoint_longs_finish
+        beq	conjoint_longs_finish
 
         pld     [from, #0]
         cmp     r2, #24
@@ -447,10 +455,10 @@ _Copy_arrayof_conjoint_jlongs:
         .align 3
 cl_f2b_loop_32:
         subs    r2, #32
-	blt	cl_f2b_loop_32_finish
+        blt	cl_f2b_loop_32_finish
         ldmia from!, {r3 - r9, ip}
         nop
-	pld     [from]
+        pld     [from]
         stmia to!, {r3 - r9, ip}
         bgt     cl_f2b_loop_32
 cl_f2b_loop_32_finish:
@@ -458,21 +466,21 @@ cl_f2b_loop_32_finish:
         beq     conjoint_longs_finish
 conjoint_longs_small:
         cmp     r2, #16
-	blt	cl_f2b_copy_8
+        blt	cl_f2b_copy_8
-	bgt	cl_f2b_copy_24
+        bgt	cl_f2b_copy_24
         ldmia 	from!, {r3 - r6}
         stmia 	to!, {r3 - r6}
-	b	conjoint_longs_finish
+        b	conjoint_longs_finish
 cl_f2b_copy_8:
         ldmia   from!, {r3 - r4}
         stmia   to!, {r3 - r4}
         b       conjoint_longs_finish
 cl_f2b_copy_24:
-	ldmia   from!, {r3 - r8}
+        ldmia   from!, {r3 - r8}
         stmia   to!, {r3 - r8}
         b       conjoint_longs_finish
 
-	# Src and dest overlap, copy in a descending order
+        # Src and dest overlap, copy in a descending order
 cl_b2f_copy:
         add     from, r2
         pld     [from, #-32]
@@ -480,31 +488,29 @@ cl_b2f_copy:
         .align 3
 cl_b2f_loop_32:
         subs    r2, #32
-	blt	cl_b2f_loop_32_finish
+        blt	cl_b2f_loop_32_finish
         ldmdb 	from!, {r3 - r9, ip}
         nop
-	pld     [from]
+        pld     [from]
         stmdb 	to!, {r3 - r9, ip}
         bgt     cl_b2f_loop_32
 cl_b2f_loop_32_finish:
         addlts  r2, #32
         beq     conjoint_longs_finish
         cmp     r2, #16
-	blt	cl_b2f_copy_8
+        blt	cl_b2f_copy_8
-	bgt	cl_b2f_copy_24
+        bgt	cl_b2f_copy_24
         ldmdb   from!, {r3 - r6}
         stmdb   to!, {r3 - r6}
         b       conjoint_longs_finish
 cl_b2f_copy_8:
-	ldmdb   from!, {r3 - r4}
+        ldmdb   from!, {r3 - r4}
         stmdb   to!, {r3 - r4}
         b       conjoint_longs_finish
 cl_b2f_copy_24:
-	ldmdb   from!, {r3 - r8}
+        ldmdb   from!, {r3 - r8}
         stmdb   to!, {r3 - r8}
 
 conjoint_longs_finish:
         ldmia   sp!, {r3 - r9, ip}
         bx      lr
-
-

src/hotspot/os_cpu/linux_arm/safefetch_linux_arm.S

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2022 SAP SE. All rights reserved.
- * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2022, 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
@@ -26,6 +26,11 @@
     .globl SafeFetch32_impl
     .globl _SafeFetch32_fault
     .globl _SafeFetch32_continuation
+
+    .hidden SafeFetch32_impl
+    .hidden _SafeFetch32_fault
+    .hidden _SafeFetch32_continuation
+
     .type SafeFetch32_impl, %function
 
     # Support for int SafeFetch32(int* address, int defaultval);

src/hotspot/os_cpu/linux_ppc/safefetch_linux_ppc.S

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2022 SAP SE. All rights reserved.
- * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2022, 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
@@ -30,6 +30,13 @@
     .globl _SafeFetch32_fault
     .globl _SafeFetch32_continuation
 
+    .hidden SafeFetchN_impl
+    .hidden _SafeFetchN_fault
+    .hidden _SafeFetchN_continuation
+    .hidden SafeFetch32_impl
+    .hidden _SafeFetch32_fault
+    .hidden _SafeFetch32_continuation
+
     # Support for int SafeFetch32(int* address, int defaultval);
     #
     #  r3 : address

src/hotspot/os_cpu/linux_riscv/safefetch_linux_riscv.S

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2022 SAP SE. All rights reserved.
- * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2022, 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
@@ -30,6 +30,13 @@
     .globl _SafeFetch32_fault
     .globl _SafeFetch32_continuation
 
+    .hidden SafeFetchN_impl
+    .hidden _SafeFetchN_fault
+    .hidden _SafeFetchN_continuation
+    .hidden SafeFetch32_impl
+    .hidden _SafeFetch32_fault
+    .hidden _SafeFetch32_continuation
+
     # Support for int SafeFetch32(int* address, int defaultval);
     #
     #  x10 (a0) : address

src/hotspot/os_cpu/linux_s390/safefetch_linux_s390.S

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2022 SAP SE. All rights reserved.
- * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2022, 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
@@ -30,6 +30,13 @@
     .globl _SafeFetch32_fault
     .globl _SafeFetch32_continuation
 
+    .hidden SafeFetchN_impl
+    .hidden _SafeFetchN_fault
+    .hidden _SafeFetchN_continuation
+    .hidden SafeFetch32_impl
+    .hidden _SafeFetch32_fault
+    .hidden _SafeFetch32_continuation
+
     # Support for int SafeFetch32(int* address, int defaultval);
     #
     #  r2 : address

src/hotspot/os_cpu/linux_x86/linux_x86_32.S

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2004, 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2004, 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
@@ -21,28 +21,41 @@
 # questions.
 #
 
+        .globl  SpinPause
 
         # NOTE WELL!  The _Copy functions are called directly
-	# from server-compiler-generated code via CallLeafNoFP,
+        # from server-compiler-generated code via CallLeafNoFP,
-	# which means that they *must* either not use floating
+        # which means that they *must* either not use floating
-	# point or use it in the same manner as does the server
+        # point or use it in the same manner as does the server
-	# compiler.
+        # compiler.
 
         .globl _Copy_arrayof_conjoint_bytes
         .globl _Copy_conjoint_jshorts_atomic
-	.globl _Copy_arrayof_conjoint_jshorts
+        .globl _Copy_arrayof_conjoint_jshorts
         .globl _Copy_conjoint_jints_atomic
         .globl _Copy_arrayof_conjoint_jints
-	.globl _Copy_conjoint_jlongs_atomic
+        .globl _Copy_conjoint_jlongs_atomic
-	.globl _mmx_Copy_arrayof_conjoint_jshorts
+        .globl _mmx_Copy_arrayof_conjoint_jshorts
 
         .globl _Atomic_cmpxchg_long
         .globl _Atomic_move_long
 
-	.text
+        .hidden  SpinPause
 
-        .globl  SpinPause
+        .hidden _Copy_arrayof_conjoint_bytes
-	.type   SpinPause,@function
+        .hidden _Copy_conjoint_jshorts_atomic
+        .hidden _Copy_arrayof_conjoint_jshorts
+        .hidden _Copy_conjoint_jints_atomic
+        .hidden _Copy_arrayof_conjoint_jints
+        .hidden _Copy_conjoint_jlongs_atomic
+        .hidden _mmx_Copy_arrayof_conjoint_jshorts
+
+        .hidden _Atomic_cmpxchg_long
+        .hidden _Atomic_move_long
+
+        .text
+
+        .type   SpinPause,@function
         .p2align 4,,15
 SpinPause:
         rep
@@ -55,7 +68,7 @@ SpinPause:
         #                                               size_t count)
         #
         .p2align 4,,15
-	.type    _Copy_arrayof_conjoint_bytes,@function
+        .type    _Copy_arrayof_conjoint_bytes,@function
 _Copy_arrayof_conjoint_bytes:
         pushl    %esi
         movl     4+12(%esp),%ecx      # count
@@ -115,7 +128,7 @@ acb_CopyLeft:
         jbe      2f                   # <= 32 dwords
         rep;     smovl
         jmp      4f
-	.space 8
+        .space 8
 2:      subl     %esi,%edi
         .p2align 4,,15
 3:      movl     (%esi),%edx
@@ -131,7 +144,7 @@ acb_CopyLeft:
         addl     $3,%esi
 6:      movb     (%esi),%dl
         movb     %dl,(%edi,%esi,1)
-	subl     $1,%esi
+        subl     $1,%esi
         subl     $1,%ecx
         jnz      6b
 7:      cld
@@ -143,7 +156,7 @@ acb_CopyLeft:
         #                                                void* to,
         #                                                size_t count)
         .p2align 4,,15
-	.type    _Copy_conjoint_jshorts_atomic,@function
+        .type    _Copy_conjoint_jshorts_atomic,@function
 _Copy_conjoint_jshorts_atomic:
         pushl    %esi
         movl     4+12(%esp),%ecx      # count
@@ -230,7 +243,7 @@ cs_CopyLeft:
         #                                                 void* to,
         #                                                 size_t count)
         .p2align 4,,15
-	.type    _Copy_arrayof_conjoint_jshorts,@function
+        .type    _Copy_arrayof_conjoint_jshorts,@function
 _Copy_arrayof_conjoint_jshorts:
         pushl    %esi
         movl     4+12(%esp),%ecx      # count
@@ -307,8 +320,8 @@ acs_CopyLeft:
         # Equivalent to
         #   arrayof_conjoint_jints
         .p2align 4,,15
-	.type    _Copy_conjoint_jints_atomic,@function
+        .type    _Copy_conjoint_jints_atomic,@function
-	.type    _Copy_arrayof_conjoint_jints,@function
+        .type    _Copy_arrayof_conjoint_jints,@function
 _Copy_conjoint_jints_atomic:
 _Copy_arrayof_conjoint_jints:
         pushl    %esi
@@ -384,7 +397,7 @@ ci_CopyLeft:
         # }
         */
         .p2align 4,,15
-	.type    _Copy_conjoint_jlongs_atomic,@function
+        .type    _Copy_conjoint_jlongs_atomic,@function
 _Copy_conjoint_jlongs_atomic:
         movl     4+8(%esp),%ecx       # count
         movl     4+0(%esp),%eax       # from
@@ -413,7 +426,7 @@ cla_CopyLeft:
         #                                                 void* to,
         #                                                 size_t count)
         .p2align 4,,15
-	.type    _mmx_Copy_arrayof_conjoint_jshorts,@function
+        .type    _mmx_Copy_arrayof_conjoint_jshorts,@function
 _mmx_Copy_arrayof_conjoint_jshorts:
         pushl    %esi
         movl     4+12(%esp),%ecx
@@ -465,8 +478,8 @@ mmx_acs_CopyRight:
         cmpl     $16,%ecx
         jge      4b
         emms
-	testl    %ecx,%ecx
+        testl    %ecx,%ecx
-	ja       1b
+        ja       1b
 5:      andl     $1,%eax
         je       7f
 6:      movw     (%esi),%dx
@@ -511,7 +524,7 @@ mmx_acs_CopyLeft:
         #                                   jlong exchange_value)
         #
         .p2align 4,,15
-	.type    _Atomic_cmpxchg_long,@function
+        .type    _Atomic_cmpxchg_long,@function
 _Atomic_cmpxchg_long:
                                    #  8(%esp) : return PC
         pushl    %ebx              #  4(%esp) : old %ebx
@@ -530,7 +543,7 @@ _Atomic_cmpxchg_long:
         # Support for jlong Atomic::load and Atomic::store.
         # void _Atomic_move_long(const volatile jlong* src, volatile jlong* dst)
         .p2align 4,,15
-	.type    _Atomic_move_long,@function
+        .type    _Atomic_move_long,@function
 _Atomic_move_long:
         movl     4(%esp), %eax   # src
         fildll    (%eax)

src/hotspot/os_cpu/linux_x86/linux_x86_64.S

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2004, 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
@@ -21,24 +21,34 @@
 # questions.
 #
 
+        .globl SpinPause
 
         # NOTE WELL!  The _Copy functions are called directly
-	# from server-compiler-generated code via CallLeafNoFP,
+        # from server-compiler-generated code via CallLeafNoFP,
-	# which means that they *must* either not use floating
+        # which means that they *must* either not use floating
-	# point or use it in the same manner as does the server
+        # point or use it in the same manner as does the server
-	# compiler.
+        # compiler.
 
         .globl _Copy_arrayof_conjoint_bytes
-	.globl _Copy_arrayof_conjoint_jshorts
+        .globl _Copy_arrayof_conjoint_jshorts
         .globl _Copy_conjoint_jshorts_atomic
         .globl _Copy_arrayof_conjoint_jints
         .globl _Copy_conjoint_jints_atomic
         .globl _Copy_arrayof_conjoint_jlongs
         .globl _Copy_conjoint_jlongs_atomic
 
-	.text
+        .hidden SpinPause
+
+        .hidden _Copy_arrayof_conjoint_bytes
+        .hidden _Copy_arrayof_conjoint_jshorts
+        .hidden _Copy_conjoint_jshorts_atomic
+        .hidden _Copy_arrayof_conjoint_jints
+        .hidden _Copy_conjoint_jints_atomic
+        .hidden _Copy_arrayof_conjoint_jlongs
+        .hidden _Copy_conjoint_jlongs_atomic
+
+        .text
 
-        .globl SpinPause
         .align 16
         .type  SpinPause,@function
 SpinPause:
@@ -55,7 +65,7 @@ SpinPause:
         # rdx - count, treated as ssize_t
         #
         .p2align 4,,15
-	.type    _Copy_arrayof_conjoint_bytes,@function
+        .type    _Copy_arrayof_conjoint_bytes,@function
 _Copy_arrayof_conjoint_bytes:
         movq     %rdx,%r8             # byte count
         shrq     $3,%rdx              # qword count
@@ -157,8 +167,8 @@ acb_CopyLeft:
         # rdx - count, treated as ssize_t
         #
         .p2align 4,,15
-	.type    _Copy_arrayof_conjoint_jshorts,@function
+        .type    _Copy_arrayof_conjoint_jshorts,@function
-	.type    _Copy_conjoint_jshorts_atomic,@function
+        .type    _Copy_conjoint_jshorts_atomic,@function
 _Copy_arrayof_conjoint_jshorts:
 _Copy_conjoint_jshorts_atomic:
         movq     %rdx,%r8             # word count
@@ -247,8 +257,8 @@ acs_CopyLeft:
         # rdx - count, treated as ssize_t
         #
         .p2align 4,,15
-	.type    _Copy_arrayof_conjoint_jints,@function
+        .type    _Copy_arrayof_conjoint_jints,@function
-	.type    _Copy_conjoint_jints_atomic,@function
+        .type    _Copy_conjoint_jints_atomic,@function
 _Copy_arrayof_conjoint_jints:
 _Copy_conjoint_jints_atomic:
         movq     %rdx,%r8             # dword count
@@ -326,8 +336,8 @@ aci_CopyLeft:
         # rdx - count, treated as ssize_t
         #
         .p2align 4,,15
-	.type    _Copy_arrayof_conjoint_jlongs,@function
+        .type    _Copy_arrayof_conjoint_jlongs,@function
-	.type    _Copy_conjoint_jlongs_atomic,@function
+        .type    _Copy_conjoint_jlongs_atomic,@function
 _Copy_arrayof_conjoint_jlongs:
 _Copy_conjoint_jlongs_atomic:
         cmpq     %rdi,%rsi

src/hotspot/os_cpu/linux_x86/safefetch_linux_x86_32.S

@@ -1,6 +1,6 @@
 #
 # Copyright (c) 2022 SAP SE. All rights reserved.
-# Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022, 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
@@ -25,7 +25,11 @@
     .globl _SafeFetch32_fault
     .globl _SafeFetch32_continuation
 
-	.text
+    .hidden SafeFetch32_impl
+    .hidden _SafeFetch32_fault
+    .hidden _SafeFetch32_continuation
+
+    .text
 
     # Support for int SafeFetch32(int* address, int defaultval);
     #

src/hotspot/os_cpu/linux_x86/safefetch_linux_x86_64.S

@@ -1,6 +1,6 @@
 #
 # Copyright (c) 2022 SAP SE. All rights reserved.
-# Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022, 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
@@ -28,7 +28,14 @@
     .globl _SafeFetch32_continuation
     .globl _SafeFetchN_continuation
 
-	.text
+    .hidden SafeFetch32_impl
+    .hidden SafeFetchN_impl
+    .hidden _SafeFetch32_fault
+    .hidden _SafeFetchN_fault
+    .hidden _SafeFetch32_continuation
+    .hidden _SafeFetchN_continuation
+
+    .text
 
 
     # Support for int SafeFetch32(int* address, int defaultval);

src/hotspot/share/adlc/archDesc.cpp

@@ -1,5 +1,5 @@
 //
-// Copyright (c) 1997, 2023, 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
@@ -24,6 +24,7 @@
 
 
 // archDesc.cpp - Internal format for architecture definition
+#include <unordered_set>
 #include "adlc.hpp"
 
 static FILE *errfile = stderr;
@@ -684,6 +685,98 @@ bool ArchDesc::verify() {
   return true;
 }
 
+class MarkUsageFormClosure : public FormClosure {
+private:
+  ArchDesc* _ad;
+  std::unordered_set<Form*> *_visited;
+
+public:
+  MarkUsageFormClosure(ArchDesc* ad, std::unordered_set<Form*> *visit_map) {
+    _ad = ad;
+    _visited = visit_map;
+  }
+  virtual ~MarkUsageFormClosure() = default;
+
+  virtual void do_form(Form *form) {
+    if (_visited->find(form) == _visited->end()) {
+      _visited->insert(form);
+      form->forms_do(this);
+    }
+  }
+
+  virtual void do_form_by_name(const char* name) {
+    const Form* form = _ad->globalNames()[name];
+    if (form) {
+      do_form(const_cast<Form*>(form));
+      return;
+    }
+    RegisterForm* regs = _ad->get_registers();
+    if (regs->getRegClass(name)) {
+      do_form(regs->getRegClass(name));
+      return;
+    }
+  }
+};
+
+// check unused operands
+bool ArchDesc::check_usage() {
+  std::unordered_set<Form*> visited;
+  MarkUsageFormClosure callback(this, &visited);
+  _instructions.reset();
+  // iterate all instruction to mark used form
+  InstructForm* instr;
+  for ( ; (instr = (InstructForm*)_instructions.iter()) != nullptr; ) {
+    callback.do_form(instr);
+  }
+
+  // these forms are coded in OperandForm::is_user_name_for_sReg
+  // it may happen no instruction use these operands, like stackSlotP in aarch64,
+  // but we can not desclare they are useless.
+  callback.do_form_by_name("stackSlotI");
+  callback.do_form_by_name("stackSlotP");
+  callback.do_form_by_name("stackSlotD");
+  callback.do_form_by_name("stackSlotF");
+  callback.do_form_by_name("stackSlotL");
+
+  // sReg* are initial created by adlc in ArchDesc::initBaseOpTypes()
+  // In ARM, no definition or usage in adfile, but they are reported as unused
+  callback.do_form_by_name("sRegI");
+  callback.do_form_by_name("sRegP");
+  callback.do_form_by_name("sRegD");
+  callback.do_form_by_name("sRegF");
+  callback.do_form_by_name("sRegL");
+
+  // special generic vector operands only used in Matcher::pd_specialize_generic_vector_operand
+#if defined(AARCH64)
+  callback.do_form_by_name("vecA");
+  callback.do_form_by_name("vecD");
+  callback.do_form_by_name("vecX");
+#elif defined(AMD64)
+  callback.do_form_by_name("vecS");
+  callback.do_form_by_name("vecD");
+  callback.do_form_by_name("vecX");
+  callback.do_form_by_name("vecY");
+  callback.do_form_by_name("vecZ");
+  callback.do_form_by_name("legVecS");
+  callback.do_form_by_name("legVecD");
+  callback.do_form_by_name("legVecX");
+  callback.do_form_by_name("legVecY");
+  callback.do_form_by_name("legVecZ");
+#endif
+
+  int cnt = 0;
+  _operands.reset();
+  OperandForm* operand;
+  for ( ; (operand = (OperandForm*)_operands.iter()) != nullptr; ) {
+    if(visited.find(operand) == visited.end() && !operand->ideal_only()) {
+      fprintf(stderr, "\nWarning: unused operand (%s)", operand->_ident);
+      cnt++;
+    }
+  }
+  if (cnt) fprintf(stderr, "\n-------Warning: total %d unused operands\n", cnt);
+
+  return true;
+}
 
 void ArchDesc::dump() {
   _pre_header.dump();

src/hotspot/share/adlc/archDesc.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2023, 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
@@ -226,6 +226,7 @@ public:
   inline void getForm(EncodeForm **ptr)     { *ptr = _encode; }
 
   bool verify();
+  bool check_usage();
   void dump();
 
   // Helper utility that gets MatchList components from inside MatchRule

src/hotspot/share/adlc/forms.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2023, 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
@@ -362,6 +362,15 @@ void FormDict::dump() {
   _form.print(dumpkey, dumpform);
 }
 
+void FormDict::forms_do(FormClosure* f) {;
+  DictI iter(&_form);
+  for( ; iter.test(); ++iter ) {
+    Form* form = (Form*) iter._value;
+    assert(form != nullptr, "sanity");
+    f->do_form(form);
+  }
+}
+
 //------------------------------SourceForm-------------------------------------
 SourceForm::SourceForm(char* code) : _code(code) { }; // Constructor
 SourceForm::~SourceForm() {
@@ -374,3 +383,11 @@ void SourceForm::dump() {                    // Debug printer
 void SourceForm::output(FILE *fp) {
   fprintf(fp,"\n//%s\n%s\n",classname(),(_code?_code:""));
 }
+
+void FormClosure::do_form(Form* form) {
+  assert(false, "should not reach here");
+}
+
+void FormClosure::do_form_by_name(const char* name) {
+  assert(false, "should not reach here");
+}

src/hotspot/share/adlc/forms.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2023, 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
@@ -58,6 +58,7 @@ class Flag;
 class RewriteRule;
 class ConstructRule;
 class FormatRule;
+class FormClosure;
 class Peephole;
 class EncClass;
 class Interface;
@@ -114,6 +115,8 @@ public:
   const Form  *operator [](const char *name) const;  // Do a lookup
 
   void dump();
+  // iterate child forms recursively
+  void forms_do(FormClosure *f);
 };
 
 // ***** Master Class for ADL Parser Forms *****
@@ -163,6 +166,9 @@ public:
   // Write info to output files
   virtual void output(FILE *fp)    { fprintf(fp,"Form Output"); }
 
+  // iterate child forms recursively
+  virtual void forms_do (FormClosure* f) { return; }
+
 public:
   // ADLC types, match the last character on ideal operands and instructions
   enum DataType {
@@ -255,6 +261,16 @@ public:
 
 };
 
+class FormClosure {
+public:
+    FormClosure() = default;
+    virtual ~FormClosure() = default;
+
+    virtual void do_form(Form* form);
+    virtual void do_form_by_name(const char* name);
+};
+
+
 //------------------------------FormList---------------------------------------
 class FormList {
 private:

src/hotspot/share/adlc/formsopt.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 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
@@ -198,6 +198,20 @@ void RegisterForm::output(FILE *fp) {          // Write info to output files
   fprintf(fp,"-------------------- end  RegisterForm --------------------\n");
 }
 
+void RegisterForm::forms_do(FormClosure *f) {
+  const char *name = nullptr;
+  if (_current_ac) f->do_form(_current_ac);
+  for(_rdefs.reset(); (name = _rdefs.iter()) != nullptr;) {
+    f->do_form((RegDef*)_regDef[name]);
+  }
+  for (_rclasses.reset(); (name = _rclasses.iter()) != nullptr;) {
+    f->do_form((RegClass*)_regClass[name]);
+  }
+  for (_aclasses.reset(); (name = _aclasses.iter()) != nullptr;) {
+    f->do_form((AllocClass*)_allocClass[name]);
+  }
+}
+
 //------------------------------RegDef-----------------------------------------
 // Constructor
 RegDef::RegDef(char *regname, char *callconv, char *c_conv, char * idealtype, char * encode, char * concrete)
@@ -322,6 +336,13 @@ void RegClass::output(FILE *fp) {           // Write info to output files
   fprintf(fp,"--- done with entries for reg_class %s\n\n",_classid);
 }
 
+void RegClass::forms_do(FormClosure *f) {
+  const char *name = nullptr;
+  for( _regDefs.reset(); (name = _regDefs.iter()) != nullptr; ) {
+    f->do_form((RegDef*)_regDef[name]);
+  }
+}
+
 void RegClass::declare_register_masks(FILE* fp) {
   const char* prefix = "";
   const char* rc_name_to_upper = toUpper(_classid);
@@ -436,6 +457,14 @@ void AllocClass::output(FILE *fp) {       // Write info to output files
   fprintf(fp,"--- done with entries for alloc_class %s\n\n",_classid);
 }
 
+void AllocClass::forms_do(FormClosure* f) {
+  const char *name;
+  for(_regDefs.reset(); (name = _regDefs.iter()) != nullptr;) {
+    f->do_form((RegDef*)_regDef[name]);
+  }
+  return;
+}
+
 //==============================Frame Handling=================================
 //------------------------------FrameForm--------------------------------------
 FrameForm::FrameForm() {
@@ -706,6 +735,15 @@ void Peephole::output(FILE *fp) {         // Write info to output files
   if( _next ) _next->output(fp);
 }
 
+void Peephole::forms_do(FormClosure *f) {
+  if (_predicate) f->do_form(_predicate);
+  if (_match) f->do_form(_match);
+  if (_procedure) f->do_form(_procedure);
+  if (_constraint) f->do_form(_constraint);
+  if (_replace) f->do_form(_replace);
+  return;
+}
+
 //----------------------------PeepPredicate------------------------------------
 PeepPredicate::PeepPredicate(const char* rule) : _rule(rule) {
 }

src/hotspot/share/adlc/formsopt.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 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
@@ -123,6 +123,7 @@ public:
 
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
+  virtual void forms_do(FormClosure* f);
 };
 
 //------------------------------RegDef-----------------------------------------
@@ -199,6 +200,7 @@ public:
 
   void dump();                  // Debug printer
   void output(FILE *fp);        // Write info to output files
+  virtual void forms_do(FormClosure* f);
 
   virtual bool has_stack_version() {
     return _stack_or_reg;
@@ -305,6 +307,11 @@ public:
   char* condition_code() {
     return _condition_code;
   }
+
+  virtual void forms_do(FormClosure* f) {
+    if (_rclasses[0]) f->do_form(_rclasses[0]);
+    if (_rclasses[1]) f->do_form(_rclasses[1]);
+  }
 };
 
 //------------------------------AllocClass-------------------------------------
@@ -325,6 +332,7 @@ public:
 
   void dump();                  // Debug printer
   void output(FILE *fp);        // Write info to output files
+  virtual void forms_do(FormClosure* f);
 };
 
 
@@ -568,6 +576,7 @@ public:
 
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
+  virtual void forms_do(FormClosure* f);
 };
 
 class PeepPredicate : public Form {

src/hotspot/share/adlc/formssel.cpp

@@ -1498,6 +1498,24 @@ void InstructForm::output(FILE *fp) {
   if (_peephole)  _peephole->output(fp);
 }
 
+void InstructForm::forms_do(FormClosure *f) {
+  if (_cisc_spill_alternate) f->do_form(_cisc_spill_alternate);
+  if (_short_branch_form) f->do_form(_short_branch_form);
+  _localNames.forms_do(f);
+  if (_matrule) f->do_form(_matrule);
+  if (_opcode) f->do_form(_opcode);
+  if (_insencode) f->do_form(_insencode);
+  if (_constant) f->do_form(_constant);
+  if (_attribs) f->do_form(_attribs);
+  if (_predicate) f->do_form(_predicate);
+  _effects.forms_do(f);
+  if (_exprule) f->do_form(_exprule);
+  if (_rewrule) f->do_form(_rewrule);
+  if (_format) f->do_form(_format);
+  if (_peephole) f->do_form(_peephole);
+  assert(_components.count() == 0, "skip components");
+}
+
 void MachNodeForm::dump() {
   output(stderr);
 }
@@ -1615,6 +1633,14 @@ void EncodeForm::output(FILE *fp) {          // Write info to output files
   }
   fprintf(fp,"-------------------- end  EncodeForm --------------------\n");
 }
+
+void EncodeForm::forms_do(FormClosure* f) {
+  const char *name;
+  for (_eclasses.reset(); (name = _eclasses.iter()) != nullptr;) {
+    f->do_form((EncClass*)_encClass[name]);
+  }
+}
+
 //------------------------------EncClass---------------------------------------
 EncClass::EncClass(const char *name)
   : _localNames(cmpstr,hashstr, Form::arena), _name(name) {
@@ -1705,6 +1731,15 @@ void EncClass::output(FILE *fp) {
 
 }
 
+void EncClass::forms_do(FormClosure *f) {
+  _parameter_type.reset();
+  const char *type = _parameter_type.iter();
+  for ( ; type != nullptr ; type = _parameter_type.iter() ) {
+    f->do_form_by_name(type);
+  }
+  _localNames.forms_do(f);
+}
+
 //------------------------------Opcode-----------------------------------------
 Opcode::Opcode(char *primary, char *secondary, char *tertiary)
   : _primary(primary), _secondary(secondary), _tertiary(tertiary) {
@@ -1835,6 +1870,15 @@ void InsEncode::output(FILE *fp) {
   fprintf(fp,"\n");
 }
 
+void InsEncode::forms_do(FormClosure *f) {
+  _encoding.reset();
+  NameAndList *encoding = (NameAndList*)_encoding.iter();
+  for( ; encoding != nullptr; encoding = (NameAndList*)_encoding.iter() ) {
+    // just check name, other operands will be checked as instruction parameters
+    f->do_form_by_name(encoding->name());
+  }
+}
+
 //------------------------------Effect-----------------------------------------
 static int effect_lookup(const char *name) {
   if (!strcmp(name, "USE")) return Component::USE;
@@ -1968,6 +2012,19 @@ void ExpandRule::output(FILE *fp) {         // Write info to output files
   }
 }
 
+void ExpandRule::forms_do(FormClosure *f) {
+  NameAndList *expand_instr = nullptr;
+  // Iterate over the instructions 'node' expands into
+  for(reset_instructions(); (expand_instr = iter_instructions()) != nullptr; ) {
+    f->do_form_by_name(expand_instr->name());
+  }
+  _newopers.reset();
+  const char* oper = _newopers.iter();
+  for(; oper != nullptr; oper = _newopers.iter()) {
+    f->do_form_by_name(oper);
+  }
+}
+
 //------------------------------RewriteRule------------------------------------
 RewriteRule::RewriteRule(char* params, char* block)
   : _tempParams(params), _tempBlock(block) { };  // Constructor
@@ -1984,6 +2041,12 @@ void RewriteRule::output(FILE *fp) {         // Write info to output files
           (_tempBlock?_tempBlock:""));
 }
 
+void RewriteRule::forms_do(FormClosure *f) {
+  if (_condition) f->do_form(_condition);
+  if (_instrs) f->do_form(_instrs);
+  if (_opers) f->do_form(_opers);
+}
+
 
 //==============================MachNodes======================================
 //------------------------------MachNodeForm-----------------------------------
@@ -2066,6 +2129,13 @@ void OpClassForm::output(FILE *fp) {
   fprintf(fp,"\n");
 }
 
+void OpClassForm::forms_do(FormClosure* f) {
+  const char *name;
+  for(_oplst.reset(); (name = _oplst.iter()) != nullptr;) {
+    f->do_form_by_name(name);
+  }
+}
+
 
 //==============================Operands=======================================
 //------------------------------OperandForm------------------------------------
@@ -2691,6 +2761,22 @@ void OperandForm::output(FILE *fp) {
   if (_format)     _format->dump();
 }
 
+void OperandForm::forms_do(FormClosure* f) {
+  if (_matrule)    f->do_form(_matrule);
+  if (_interface)  f->do_form(_interface);
+  if (_attribs)    f->do_form(_attribs);
+  if (_predicate)  f->do_form(_predicate);
+  if (_constraint) f->do_form(_constraint);
+  if (_construct)  f->do_form(_construct);
+  if (_format)     f->do_form(_format);
+  _localNames.forms_do(f);
+  const char* opclass = nullptr;
+  for ( _classes.reset(); (opclass = _classes.iter()) != nullptr; ) {
+    f->do_form_by_name(opclass);
+  }
+  assert(_components.count() == 0, "skip _compnets");
+}
+
 //------------------------------Constraint-------------------------------------
 Constraint::Constraint(const char *func, const char *arg)
   : _func(func), _arg(arg) {
@@ -2712,6 +2798,10 @@ void Constraint::output(FILE *fp) {           // Write info to output files
   fprintf(fp,"Constraint: %s ( %s )\n", _func, _arg);
 }
 
+void Constraint::forms_do(FormClosure *f) {
+  f->do_form_by_name(_arg);
+}
+
 //------------------------------Predicate--------------------------------------
 Predicate::Predicate(char *pr)
   : _pred(pr) {
@@ -3539,6 +3629,12 @@ void MatchNode::output(FILE *fp) {
   }
 }
 
+void MatchNode::forms_do(FormClosure *f) {
+  f->do_form_by_name(_name);
+  if (_lChild) f->do_form(_lChild);
+  if (_rChild) f->do_form(_rChild);
+}
+
 int MatchNode::needs_ideal_memory_edge(FormDict &globals) const {
   static const char *needs_ideal_memory_list[] = {
     "StoreI","StoreL","StoreP","StoreN","StoreNKlass","StoreD","StoreF" ,
@@ -3608,6 +3704,7 @@ int InstructForm::needs_base_oop_edge(FormDict &globals) const {
 }
 
 
+
 //-------------------------cisc spilling methods-------------------------------
 // helper routines and methods for detecting cisc-spilling instructions
 //-------------------------cisc_spill_merge------------------------------------
@@ -4334,6 +4431,18 @@ void MatchRule::output(FILE *fp) {
   fprintf(fp,"\n");
 }
 
+void MatchRule::forms_do(FormClosure* f) {
+  // keep sync with MatchNode::forms_do
+  f->do_form_by_name(_name);
+  if (_lChild) f->do_form(_lChild);
+  if (_rChild) f->do_form(_rChild);
+
+  // handle next rule
+  if (_next) {
+    f->do_form(_next);
+  }
+}
+
 //------------------------------Attribute--------------------------------------
 Attribute::Attribute(char *id, char* val, int type)
   : _ident(id), _val(val), _atype(type) {

src/hotspot/share/adlc/formssel.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 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
@@ -310,6 +310,7 @@ public:
 
   virtual void dump();             // Debug printer
   virtual void output(FILE *fp);   // Write to output files
+  virtual void forms_do(FormClosure *f);
 };
 
 //------------------------------EncodeForm-------------------------------------
@@ -333,6 +334,7 @@ public:
 
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
+  virtual void forms_do(FormClosure *f);
 };
 
 //------------------------------EncClass---------------------------------------
@@ -377,6 +379,7 @@ public:
   bool verify();
   void dump();
   void output(FILE *fp);
+  virtual void forms_do(FormClosure* f);
 };
 
 //------------------------------MachNode---------------------------------------
@@ -468,6 +471,7 @@ public:
 
   void dump();
   void output(FILE *fp);
+  virtual void forms_do(FormClosure *f);
 };
 
 //------------------------------Effect-----------------------------------------
@@ -515,6 +519,7 @@ public:
 
   void dump();                    // Debug printer
   void output(FILE *fp);          // Write info to output files
+  virtual void forms_do(FormClosure *f);
 };
 
 //---------------------------------Flag----------------------------------------
@@ -554,6 +559,7 @@ public:
   ~RewriteRule();                  // Destructor
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
+  virtual void forms_do(FormClosure* f);
 };
 
 
@@ -584,6 +590,7 @@ public:
   virtual bool ideal_only() const;
   virtual void dump();             // Debug printer
   virtual void output(FILE *fp);   // Write to output files
+  virtual void forms_do(FormClosure* f);
 };
 
 //------------------------------OperandForm------------------------------------
@@ -711,6 +718,7 @@ public:
 
   virtual void dump();             // Debug printer
   virtual void output(FILE *fp);   // Write to output files
+  virtual void forms_do(FormClosure* f);
 };
 
 //------------------------------Constraint-------------------------------------
@@ -729,6 +737,7 @@ public:
 
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
+  virtual void forms_do(FormClosure* f);
 };
 
 //------------------------------Predicate--------------------------------------
@@ -1014,6 +1023,7 @@ public:
 
   void dump();
   void output(FILE *fp);
+  virtual void forms_do(FormClosure* f);
 };
 
 //------------------------------MatchRule--------------------------------------
@@ -1075,6 +1085,7 @@ public:
   void dump();
   void output_short(FILE *fp);
   void output(FILE *fp);
+  virtual void forms_do(FormClosure* f);
 };
 
 //------------------------------Attribute--------------------------------------

src/hotspot/share/adlc/main.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2023, 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
@@ -186,6 +186,9 @@ int main(int argc, char *argv[])
   // Verify that the results of the parse are consistent
   AD.verify();
 
+  // Check defined operands are used
+  AD.check_usage();
+
   // Prepare to generate the result files:
   AD.generateMatchLists();
   AD.identify_unique_operands();

src/hotspot/share/c1/c1_IR.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 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
@@ -306,22 +306,22 @@ void IR::eliminate_null_checks() {
   }
 }
 
-
+// The functionality of this class is to insert a new block between
-static int sort_pairs(BlockPair** a, BlockPair** b) {
+// the 'from' and 'to' block of a critical edge.
-  if ((*a)->from() == (*b)->from()) {
+// It first collects the block pairs, and then processes them.
-    return (*a)->to()->block_id() - (*b)->to()->block_id();
+//
-  } else {
+// Some instructions may introduce more than one edge between two blocks.
-    return (*a)->from()->block_id() - (*b)->from()->block_id();
+// By checking if the current 'to' block sets critical_edge_split_flag
-  }
+// (all new blocks set this flag) we can avoid repeated processing.
-}
+// This is why BlockPair contains the index rather than the original 'to' block.
-
-
 class CriticalEdgeFinder: public BlockClosure {
   BlockPairList blocks;
-  IR*       _ir;
 
  public:
-  CriticalEdgeFinder(IR* ir): _ir(ir) {}
+  CriticalEdgeFinder(IR* ir) {
+    ir->iterate_preorder(this);
+  }
+
   void block_do(BlockBegin* bb) {
     BlockEnd* be = bb->end();
     int nos = be->number_of_sux();
@@ -329,20 +329,22 @@ class CriticalEdgeFinder: public BlockClosure {
       for (int i = 0; i < nos; i++) {
         BlockBegin* sux = be->sux_at(i);
         if (sux->number_of_preds() >= 2) {
-          blocks.append(new BlockPair(bb, sux));
+          blocks.append(new BlockPair(bb, i));
         }
       }
     }
   }
 
   void split_edges() {
-    BlockPair* last_pair = nullptr;
-    blocks.sort(sort_pairs);
     for (int i = 0; i < blocks.length(); i++) {
       BlockPair* pair = blocks.at(i);
-      if (last_pair != nullptr && pair->is_same(last_pair)) continue;
       BlockBegin* from = pair->from();
-      BlockBegin* to = pair->to();
+      int index = pair->index();
+      BlockBegin* to = from->end()->sux_at(index);
+      if (to->is_set(BlockBegin::critical_edge_split_flag)) {
+        // inserted
+        continue;
+      }
       BlockBegin* split = from->insert_block_between(to);
 #ifndef PRODUCT
       if ((PrintIR || PrintIR1) && Verbose) {
@@ -350,15 +352,12 @@ class CriticalEdgeFinder: public BlockClosure {
                       from->block_id(), to->block_id(), split->block_id());
       }
 #endif
-      last_pair = pair;
     }
   }
 };
 
 void IR::split_critical_edges() {
   CriticalEdgeFinder cef(this);
-
-  iterate_preorder(&cef);
   cef.split_edges();
 }
 

src/hotspot/share/c1/c1_Instruction.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 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
@@ -586,6 +586,8 @@ void BlockBegin::substitute_sux(BlockBegin* old_sux, BlockBegin* new_sux) {
 // of the inserted block, without recomputing the values of the other blocks
 // in the CFG. Therefore the value of "depth_first_number" in BlockBegin becomes meaningless.
 BlockBegin* BlockBegin::insert_block_between(BlockBegin* sux) {
+  assert(!sux->is_set(critical_edge_split_flag), "sanity check");
+
   int bci = sux->bci();
   // critical edge splitting may introduce a goto after a if and array
   // bound check elimination may insert a predicate between the if and

src/hotspot/share/c1/c1_Instruction.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 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
@@ -2423,15 +2423,11 @@ LEAF(MemBar, Instruction)
 class BlockPair: public CompilationResourceObj {
  private:
   BlockBegin* _from;
-  BlockBegin* _to;
+  int _index; // sux index of 'to' block
  public:
-  BlockPair(BlockBegin* from, BlockBegin* to): _from(from), _to(to) {}
+  BlockPair(BlockBegin* from, int index): _from(from), _index(index) {}
   BlockBegin* from() const { return _from; }
-  BlockBegin* to() const   { return _to;   }
+  int index() const        { return _index; }
-  bool is_same(BlockBegin* from, BlockBegin* to) const { return  _from == from && _to == to; }
-  bool is_same(BlockPair* p) const { return  _from == p->from() && _to == p->to(); }
-  void set_to(BlockBegin* b)   { _to = b; }
-  void set_from(BlockBegin* b) { _from = b; }
 };
 
 typedef GrowableArray<BlockPair*> BlockPairList;

src/hotspot/share/cds/archiveHeapWriter.cpp

@@ -44,7 +44,7 @@
 
 #if INCLUDE_G1GC
 #include "gc/g1/g1CollectedHeap.hpp"
-#include "gc/g1/heapRegion.hpp"
+#include "gc/g1/g1HeapRegion.hpp"
 #endif
 
 #if INCLUDE_CDS_JAVA_HEAP

src/hotspot/share/cds/filemap.cpp

@@ -71,7 +71,7 @@
 #include "utilities/ostream.hpp"
 #if INCLUDE_G1GC
 #include "gc/g1/g1CollectedHeap.hpp"
-#include "gc/g1/heapRegion.hpp"
+#include "gc/g1/g1HeapRegion.hpp"
 #endif
 
 # include <sys/stat.h>

src/hotspot/share/cds/metaspaceShared.cpp

@@ -1327,6 +1327,9 @@ char* MetaspaceShared::reserve_address_space_for_archives(FileMapInfo* static_ma
       release_reserved_spaces(total_space_rs, archive_space_rs, class_space_rs);
       return nullptr;
     }
+    // NMT: fix up the space tags
+    MemTracker::record_virtual_memory_type(archive_space_rs.base(), mtClassShared);
+    MemTracker::record_virtual_memory_type(class_space_rs.base(), mtClass);
   } else {
     if (use_archive_base_addr && base_address != nullptr) {
       total_space_rs = ReservedSpace(total_range_size, archive_space_alignment,
@@ -1356,16 +1359,13 @@ char* MetaspaceShared::reserve_address_space_for_archives(FileMapInfo* static_ma
                                                  (size_t)archive_space_alignment);
     class_space_rs = total_space_rs.last_part(ccs_begin_offset);
     MemTracker::record_virtual_memory_split_reserved(total_space_rs.base(), total_space_rs.size(),
-                                                     ccs_begin_offset);
+                                                     ccs_begin_offset, mtClassShared, mtClass);
   }
   assert(is_aligned(archive_space_rs.base(), archive_space_alignment), "Sanity");
   assert(is_aligned(archive_space_rs.size(), archive_space_alignment), "Sanity");
   assert(is_aligned(class_space_rs.base(), class_space_alignment), "Sanity");
   assert(is_aligned(class_space_rs.size(), class_space_alignment), "Sanity");
 
-  // NMT: fix up the space tags
-  MemTracker::record_virtual_memory_type(archive_space_rs.base(), mtClassShared);
-  MemTracker::record_virtual_memory_type(class_space_rs.base(), mtClass);
 
   return archive_space_rs.base();
 

src/hotspot/share/compiler/compilationFailureInfo.cpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2023, 2024, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2023, Red Hat, Inc. and/or its affiliates.
+ * Copyright (c) 2023, 2024, Red Hat, Inc. and/or its affiliates.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -42,11 +42,16 @@
 #include "utilities/ostream.hpp"
 #include "utilities/nativeCallStack.hpp"
 
+int CompilationFailureInfo::current_compile_id_or_0() {
+  ciEnv* env = ciEnv::current();
+  return (env != nullptr) ? env->compile_id() : 0;
+}
+
 CompilationFailureInfo::CompilationFailureInfo(const char* failure_reason) :
   _stack(2),
   _failure_reason(os::strdup(failure_reason)),
   _elapsed_seconds(os::elapsedTime()),
-  _compile_id(ciEnv::current()->task()->compile_id())
+  _compile_id(current_compile_id_or_0())
 {}
 
 CompilationFailureInfo::~CompilationFailureInfo() {

src/hotspot/share/compiler/compilationFailureInfo.hpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2023, 2024, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2023, Red Hat, Inc. and/or its affiliates.
+ * Copyright (c) 2023, 2024, Red Hat, Inc. and/or its affiliates.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -40,6 +40,7 @@ class CompilationFailureInfo : public CHeapObj<mtCompiler> {
   char* const _failure_reason;
   const double _elapsed_seconds;
   const int _compile_id;
+  static int current_compile_id_or_0();
 public:
   CompilationFailureInfo(const char* failure_reason);
   ~CompilationFailureInfo();