8253795: Implementation of JEP 391: macOS/AArch64 Port

8253816: Support macOS W^X
8253817: Support macOS Aarch64 ABI in Interpreter
8253818: Support macOS Aarch64 ABI for compiled wrappers
8253819: Implement os/cpu for macOS/AArch64
8253839: Update tests and JDK code for macOS/Aarch64
8254941: Implement Serviceability Agent for macOS/AArch64
8255776: Change build system for macOS/AArch64
8262903: [macos_aarch64] Thread::current() called on detached thread
8262896: [macos_aarch64] Crash in jni_fast_GetLongField

Reviewed-by: adinn, burban, aph
Backport-of: dbc9e4b

make/autoconf/build-aux/config.guess

@@ -1,6 +1,7 @@
 #!/bin/sh
 #
-# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2012, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2021, Azul Systems, Inc. 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
@@ -106,6 +107,14 @@ if [ "x$OUT" = x ]; then
   fi
 fi
 
+# Test and fix cpu on macos-aarch64, uname -p reports arm, buildsys expects aarch64
+echo $OUT | grep arm-apple-darwin > /dev/null 2> /dev/null
+if test $? = 0; then
+  if [ `uname -m` = arm64 ]; then
+    OUT=aarch64`echo $OUT | sed -e 's/[^-]*//'`
+  fi
+fi
+
 # Test and fix cpu on Macosx when C preprocessor is not on the path
 echo $OUT | grep i386-apple-darwin > /dev/null 2> /dev/null
 if test $? = 0; then

make/autoconf/flags.m4

@@ -111,19 +111,25 @@ AC_DEFUN([FLAGS_SETUP_MACOSX_VERSION],
 [
   # Additional macosx handling
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
+    # The expected format for <version> is either nn.n.n or nn.nn.nn. See
+    # /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/AvailabilityVersions.h
+
     # MACOSX_VERSION_MIN specifies the lowest version of Macosx that the built
     # binaries should be compatible with, even if compiled on a newer version
     # of the OS. It currently has a hard coded value. Setting this also limits
     # exposure to API changes in header files. Bumping this is likely to
     # require code changes to build.
-    MACOSX_VERSION_MIN=10.9.0
+    if test "x$OPENJDK_TARGET_CPU_ARCH" = xaarch64; then
+      MACOSX_VERSION_MIN=11.00.00
+    else
+      MACOSX_VERSION_MIN=10.9.0
+    fi
     MACOSX_VERSION_MIN_NODOTS=${MACOSX_VERSION_MIN//\./}
 
     AC_SUBST(MACOSX_VERSION_MIN)
 
     # Setting --with-macosx-version-max=<version> makes it an error to build or
-    # link to macosx APIs that are newer than the given OS version. The expected
-    # format for <version> is either nn.n.n or nn.nn.nn. See /usr/include/AvailabilityMacros.h.
+    # link to macosx APIs that are newer than the given OS version.
     AC_ARG_WITH([macosx-version-max], [AS_HELP_STRING([--with-macosx-version-max],
         [error on use of newer functionality. @<:@macosx@:>@])],
         [

make/autoconf/hotspot.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, 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
@@ -274,6 +274,14 @@ AC_DEFUN_ONCE([HOTSPOT_ENABLE_DISABLE_CDS],
     fi
   fi
 
+  # Disable CDS on macos-aarch64
+  if test "x$OPENJDK_TARGET_OS" = "xmacosx" && test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
+    ENABLE_CDS="false"
+    if test "x$enable_cds" = "xyes"; then
+      AC_MSG_ERROR([CDS is currently not supported on macOS/aarch64. Remove --enable-cds.])
+    fi
+  fi
+
   AC_SUBST(ENABLE_CDS)
 ])
 

make/common/NativeCompilation.gmk

@@ -1213,7 +1213,7 @@ define SetupNativeCompilationBody
                 # This only works if the openjdk_codesign identity is present on the system. Let
                 # silently fail otherwise.
                 ifneq ($(CODESIGN), )
-		  $(CODESIGN) -s "$(MACOSX_CODESIGN_IDENTITY)" --timestamp --options runtime \
+		  $(CODESIGN) -f -s "$(MACOSX_CODESIGN_IDENTITY)" --timestamp --options runtime \
 		      --entitlements $$(call GetEntitlementsFile, $$@) $$@
                 endif
   endif

make/hotspot/gensrc/GensrcAdlc.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2013, 2021, 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
@@ -99,6 +99,9 @@ ifeq ($(call check-jvm-feature, compiler2), true)
     ADLCFLAGS += -DAIX=1
   else ifeq ($(OPENJDK_TARGET_OS), macosx)
     ADLCFLAGS += -D_ALLBSD_SOURCE=1 -D_GNU_SOURCE=1
+    ifeq ($(HOTSPOT_TARGET_CPU_ARCH), aarch64)
+      ADLCFLAGS += -DR18_RESERVED
+    endif
   else ifeq ($(OPENJDK_TARGET_OS), windows)
     ifeq ($(call isTargetCpuBits, 64), true)
       ADLCFLAGS += -D_WIN64=1

make/lib/Awt2dLibraries.gmk

@@ -562,7 +562,7 @@ else
        maybe-uninitialized class-memaccess
   HARFBUZZ_DISABLED_WARNINGS_clang := unused-value incompatible-pointer-types \
        tautological-constant-out-of-range-compare int-to-pointer-cast \
-       undef missing-field-initializers
+       undef missing-field-initializers deprecated-declarations c++11-narrowing
   HARFBUZZ_DISABLED_WARNINGS_microsoft := 4267 4244 4090 4146 4334 4819 4101 4068 4805 4138
   HARFBUZZ_DISABLED_WARNINGS_C_solstudio := \
         E_INTEGER_OVERFLOW_DETECTED \

make/lib/Lib-jdk.hotspot.agent.gmk

@@ -36,7 +36,7 @@ else ifeq ($(OPENJDK_TARGET_OS), solaris)
   SA_LDFLAGS := -mt
 
 else ifeq ($(OPENJDK_TARGET_OS), macosx)
-  SA_CFLAGS := -Damd64 -D_GNU_SOURCE -mno-omit-leaf-frame-pointer \
+  SA_CFLAGS := -D_GNU_SOURCE -mno-omit-leaf-frame-pointer \
       -mstack-alignment=16 -fPIC
   LIBSA_EXTRA_SRC := $(SUPPORT_OUTPUTDIR)/gensrc/jdk.hotspot.agent
 else ifeq ($(OPENJDK_TARGET_OS), windows)

src/hotspot/cpu/aarch64/globalDefinitions_aarch64.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2021, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, 2015, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -53,7 +53,7 @@ const bool CCallingConventionRequiresIntsAsLongs = false;
 
 #define THREAD_LOCAL_POLL
 
-#if defined(_WIN64)
+#if defined(__APPLE__) || defined(_WIN64)
 #define R18_RESERVED
 #define R18_RESERVED_ONLY(code) code
 #define NOT_R18_RESERVED(code)

src/hotspot/cpu/aarch64/interpreterRT_aarch64.cpp

@@ -1,6 +1,7 @@
 /*
- * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, 2020, Red Hat Inc. All rights reserved.
+ * Copyright (c) 2021, Azul Systems, Inc. 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
@@ -58,9 +59,14 @@ FloatRegister InterpreterRuntime::SignatureHandlerGenerator::next_fpr() {
   return fnoreg;
 }
 
-int InterpreterRuntime::SignatureHandlerGenerator::next_stack_offset() {
+// On macos/aarch64 native stack is packed, int/float are using only 4 bytes
+// on stack. Natural alignment for types are still in place,
+// for example double/long should be 8 bytes aligned.
+
+int InterpreterRuntime::SignatureHandlerGenerator::next_stack_offset(unsigned elem_size) {
+  MACOS_ONLY(_stack_offset = align_up(_stack_offset, elem_size));
   int ret = _stack_offset;
-  _stack_offset += wordSize;
+  _stack_offset += NOT_MACOS(wordSize) MACOS_ONLY(elem_size);
   return ret;
 }
 
@@ -72,6 +78,30 @@ InterpreterRuntime::SignatureHandlerGenerator::SignatureHandlerGenerator(
   _stack_offset = 0;
 }
 
+void InterpreterRuntime::SignatureHandlerGenerator::pass_byte() {
+  const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
+
+  Register reg = next_gpr();
+  if (reg != noreg) {
+    __ ldr(reg, src);
+  } else {
+    __ ldrb(r0, src);
+    __ strb(r0, Address(to(), next_stack_offset(sizeof(jbyte))));
+  }
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_short() {
+  const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
+
+  Register reg = next_gpr();
+  if (reg != noreg) {
+    __ ldr(reg, src);
+  } else {
+    __ ldrh(r0, src);
+    __ strh(r0, Address(to(), next_stack_offset(sizeof(jshort))));
+  }
+}
+
 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
   const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
 
@@ -80,7 +110,7 @@ void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
     __ ldr(reg, src);
   } else {
     __ ldrw(r0, src);
-    __ strw(r0, Address(to(), next_stack_offset()));
+    __ strw(r0, Address(to(), next_stack_offset(sizeof(jint))));
   }
 }
 
@@ -92,7 +122,7 @@ void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
     __ ldr(reg, src);
   } else {
     __ ldr(r0, src);
-    __ str(r0, Address(to(), next_stack_offset()));
+    __ str(r0, Address(to(), next_stack_offset(sizeof(jlong))));
   }
 }
 
@@ -104,7 +134,7 @@ void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
     __ ldrs(reg, src);
   } else {
     __ ldrw(r0, src);
-    __ strw(r0, Address(to(), next_stack_offset()));
+    __ strw(r0, Address(to(), next_stack_offset(sizeof(jfloat))));
   }
 }
 
@@ -116,7 +146,7 @@ void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
     __ ldrd(reg, src);
   } else {
     __ ldr(r0, src);
-    __ str(r0, Address(to(), next_stack_offset()));
+    __ str(r0, Address(to(), next_stack_offset(sizeof(jdouble))));
   }
 }
 
@@ -140,7 +170,8 @@ void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
     __ cbnz(temp(), L);
     __ mov(r0, zr);
     __ bind(L);
-    __ str(r0, Address(to(), next_stack_offset()));
+    STATIC_ASSERT(sizeof(jobject) == wordSize);
+    __ str(r0, Address(to(), next_stack_offset(sizeof(jobject))));
   }
 }
 
@@ -165,7 +196,7 @@ class SlowSignatureHandler
   : public NativeSignatureIterator {
  private:
   address   _from;
-  intptr_t* _to;
+  char*     _to;
   intptr_t* _int_args;
   intptr_t* _fp_args;
   intptr_t* _fp_identifiers;
@@ -200,36 +231,53 @@ class SlowSignatureHandler
     return -1;
   }
 
-  void pass_stack(intptr_t value) {
-    *_to++ = value;
+  template<typename T>
+  void pass_stack(T value) {
+    MACOS_ONLY(_to = align_up(_to, sizeof(value)));
+    *(T *)_to = value;
+    _to += NOT_MACOS(wordSize) MACOS_ONLY(sizeof(value));
+  }
+
+  virtual void pass_byte() {
+    jbyte value = *(jbyte*)single_slot_addr();
+    if (pass_gpr(value) < 0) {
+      pass_stack<>(value);
+    }
+  }
+
+  virtual void pass_short() {
+    jshort value = *(jshort*)single_slot_addr();
+    if (pass_gpr(value) < 0) {
+      pass_stack<>(value);
+    }
   }
 
   virtual void pass_int() {
     jint value = *(jint*)single_slot_addr();
     if (pass_gpr(value) < 0) {
-      pass_stack(value);
+      pass_stack<>(value);
     }
   }
 
   virtual void pass_long() {
     intptr_t value = *double_slot_addr();
     if (pass_gpr(value) < 0) {
-      pass_stack(value);
+      pass_stack<>(value);
     }
   }
 
   virtual void pass_object() {
     intptr_t* addr = single_slot_addr();
     intptr_t value = *addr == 0 ? NULL : (intptr_t)addr;
     if (pass_gpr(value) < 0) {
-      pass_stack(value);
+      pass_stack<>(value);
     }
   }
 
   virtual void pass_float() {
     jint value = *(jint*)single_slot_addr();
     if (pass_fpr(value) < 0) {
-      pass_stack(value);
+      pass_stack<>(value);
     }
   }
 
@@ -239,7 +287,7 @@ class SlowSignatureHandler
     if (0 <= arg) {
       *_fp_identifiers |= (1ull << arg); // mark as double
     } else {
-      pass_stack(value);
+      pass_stack<>(value);
     }
   }
 
@@ -248,7 +296,7 @@ class SlowSignatureHandler
     : NativeSignatureIterator(method)
   {
     _from = from;
-    _to   = to;
+    _to   = (char *)to;
 
     _int_args = to - (method->is_static() ? 16 : 17);
     _fp_args =  to - 8;

src/hotspot/cpu/aarch64/interpreterRT_aarch64.hpp

@@ -1,6 +1,7 @@
 /*
- * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2021, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
+ * Copyright (c) 2021, Azul Systems, Inc. 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
@@ -38,6 +39,8 @@ class SignatureHandlerGenerator: public NativeSignatureIterator {
   unsigned int _num_reg_int_args;
   int _stack_offset;
 
+  void pass_byte();
+  void pass_short();
   void pass_int();
   void pass_long();
   void pass_float();
@@ -46,7 +49,7 @@ class SignatureHandlerGenerator: public NativeSignatureIterator {
 
   Register next_gpr();
   FloatRegister next_fpr();
-  int next_stack_offset();
+  int next_stack_offset(unsigned elem_size);
 
  public:
   // Creation