AArch64: Implement arm64cinterp.m4 and arm64helpers.m4

runtime/oti/arm64helpers.m4

@@ -0,0 +1,121 @@
+dnl Copyright (c) 2019, 2019 IBM Corp. and others
+dnl
+dnl This program and the accompanying materials are made available under
+dnl the terms of the Eclipse Public License 2.0 which accompanies this
+dnl distribution and is available at https://www.eclipse.org/legal/epl-2.0/
+dnl or the Apache License, Version 2.0 which accompanies this distribution and
+dnl is available at https://www.apache.org/licenses/LICENSE-2.0.
+dnl
+dnl This Source Code may also be made available under the following
+dnl Secondary Licenses when the conditions for such availability set
+dnl forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
+dnl General Public License, version 2 with the GNU Classpath
+dnl Exception [1] and GNU General Public License, version 2 with the
+dnl OpenJDK Assembly Exception [2].
+dnl
+dnl [1] https://www.gnu.org/software/classpath/license.html
+dnl [2] http://openjdk.java.net/legal/assembly-exception.html
+dnl
+dnl SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
+
+include(jilvalues.m4)
+
+define({CINTERP_STACK_SIZE},{J9CONST(J9TR_cframe_sizeof,$1,$2)})
+ifelse(eval(CINTERP_STACK_SIZE % 16),0,,{ERROR stack size CINTERP_STACK_SIZE is not 16-aligned})
+
+define({ALen},{8})
+
+define({J9VMTHREAD},{x19})
+define({J9SP},{x20})
+define({J9PC},{x21})
+define({J9LITERALS},{x22})
+define({J9A0},{x23})
+
+define({FUNC_LABEL},{$1})
+
+define({DECLARE_PUBLIC},{
+	.globl FUNC_LABEL($1)
+	.type FUNC_LABEL($1),function
+})
+
+define({START_PROC},{
+	.text
+	DECLARE_PUBLIC($1)
+	.align 2
+FUNC_LABEL($1):
+})
+
+define({END_PROC})
+
+define({BRANCH_SYMBOL},{FUNC_LABEL($1)(PLT)})
+
+define({CALL_DIRECT},{bl BRANCH_SYMBOL($1)})
+
+define({GPR_SAVE_OFFSET},{eval(J9TR_cframe_preservedGPRs+(($1-19)*ALen))})
+define({GPR_SAVE_SLOT},{[sp,{#}GPR_SAVE_OFFSET($1)]})
+define({FPR_SAVE_OFFSET},{eval(J9TR_cframe_preservedFPRs+(($1-8)*8))})
+define({FPR_SAVE_SLOT},{[sp,{#}FPR_SAVE_OFFSET($1)]})
+
+define({JIT_GPR_SAVE_OFFSET},{eval(J9TR_cframe_jitGPRs+(($1)*ALen))})
+define({JIT_GPR_SAVE_SLOT},{[sp,{#}JIT_GPR_SAVE_OFFSET($1)]})
+define({JIT_FPR_SAVE_OFFSET},{eval(J9TR_cframe_jitFPRs+(($1)*8))})
+define({JIT_FPR_SAVE_SLOT},{[sp,{#}JIT_FPR_SAVE_OFFSET($1)]})
+
+define({SAVE_FPLR},{stp x29,x30,JIT_GPR_SAVE_SLOT(29)})
+
+define({RESTORE_FPLR},{ldp x29,x30,JIT_GPR_SAVE_SLOT(29)})
+
+define({BEGIN_HELPER},{
+	START_PROC($1)
+	SAVE_FPLR
+})
+
+define({END_HELPER},{
+	ret
+	END_PROC($1)
+})
+
+define({CALL_C_WITH_VMTHREAD},{
+	mov x0,J9VMTHREAD
+	CALL_DIRECT($1)
+})
+
+dnl No need to save/restore D8-D31 - the stack walker will never need to read
+dnl or modify them (no preserved FPRs in the JIT private linkage).
+
+dnl To be filled
+define({SAVE_C_VOLATILE_REGS},{
+})
+
+dnl To be filled
+define({RESTORE_C_VOLATILE_REGS},{
+})
+
+dnl To be filled
+define({SAVE_C_NONVOLATILE_REGS},{
+})
+
+dnl To be filled
+define({RESTORE_C_NONVOLATILE_REGS},{
+})
+
+define({SAVE_ALL_REGS},{
+	SAVE_C_VOLATILE_REGS
+	SAVE_C_NONVOLATILE_REGS
+})
+
+dnl To be filled
+define({SAVE_PRESERVED_REGS},{
+})
+
+define({RESTORE_ALL_REGS},{
+	RESTORE_C_VOLATILE_REGS
+	RESTORE_C_NONVOLATILE_REGS
+})
+
+dnl To be filled
+define({RESTORE_PRESERVED_REGS},{
+})
+
+define({SWITCH_TO_JAVA_STACK},{ldr J9SP,[J9VMTHREAD,{#}J9TR_VMThread_sp]})
+define({SWITCH_TO_C_STACK},{str J9SP,[J9VMTHREAD,{#}J9TR_VMThread_sp]})

runtime/vm/arm64cinterp.m4

@@ -0,0 +1,70 @@
+dnl Copyright (c) 2019, 2019 IBM Corp. and others
+dnl
+dnl This program and the accompanying materials are made available under
+dnl the terms of the Eclipse Public License 2.0 which accompanies this
+dnl distribution and is available at https://www.eclipse.org/legal/epl-2.0/
+dnl or the Apache License, Version 2.0 which accompanies this distribution and
+dnl is available at https://www.apache.org/licenses/LICENSE-2.0.
+dnl
+dnl This Source Code may also be made available under the following
+dnl Secondary Licenses when the conditions for such availability set
+dnl forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
+dnl General Public License, version 2 with the GNU Classpath
+dnl Exception [1] and GNU General Public License, version 2 with the
+dnl OpenJDK Assembly Exception [2].
+dnl
+dnl [1] https://www.gnu.org/software/classpath/license.html
+dnl [2] http://openjdk.java.net/legal/assembly-exception.html
+dnl
+dnl SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
+
+include(arm64helpers.m4)
+
+	.file "arm64cinterp.s"
+
+DECLARE_PUBLIC(cInterpreter)
+
+START_PROC(c_cInterpreter)
+	sub sp, sp, {#}CINTERP_STACK_SIZE
+	stp x19, x20, [sp, GPR_SAVE_OFFSET(19)]
+	stp x21, x22, [sp, GPR_SAVE_OFFSET(21)]
+	stp x23, x24, [sp, GPR_SAVE_OFFSET(23)]
+	stp x25, x26, [sp, GPR_SAVE_OFFSET(25)]
+	stp x27, x28, [sp, GPR_SAVE_OFFSET(27)]
+	stp x29, x30, [sp, GPR_SAVE_OFFSET(29)]
+	stp d8, d9, [sp, FPR_SAVE_OFFSET(8)]
+	stp d10, d11, [sp, FPR_SAVE_OFFSET(10)]
+	stp d12, d13, [sp, FPR_SAVE_OFFSET(12)]
+	stp d14, d15, [sp, FPR_SAVE_OFFSET(14)]
+	mov J9VMTHREAD, x0
+	ldr x27, [J9VMTHREAD,{#}J9TR_VMThread_entryLocalStorage]
+	add x28, sp, {#}JIT_GPR_SAVE_OFFSET(0)
+	str x28, [x27,{#}J9TR_ELS_jitGlobalStorageBase]
+	add x28, sp, {#}JIT_FPR_SAVE_OFFSET(0)
+	str x28, [x27,{#}J9TR_ELS_jitFPRegisterStorageBase]
+cInterpreter:
+	mov x0, J9VMTHREAD
+	ldr x27, [J9VMTHREAD,{#}J9TR_VMThread_javaVM]
+	ldr x28, [x27,{#}J9TR_JavaVM_bytecodeLoop]
+	blr x28
+	cmp x0, {#}J9TR_bcloop_exit_interpreter
+	beq .L_cInterpExit
+	RESTORE_PRESERVED_REGS
+	RESTORE_FPLR
+	SWITCH_TO_JAVA_STACK
+	ldr x0, [J9VMTHREAD,{#}J9TR_VMThread_tempSlot]
+	br x0
+.L_cInterpExit:
+	ldp x19, x20, [sp, GPR_SAVE_OFFSET(19)]
+	ldp x21, x22, [sp, GPR_SAVE_OFFSET(21)]
+	ldp x23, x24, [sp, GPR_SAVE_OFFSET(23)]
+	ldp x25, x26, [sp, GPR_SAVE_OFFSET(25)]
+	ldp x27, x28, [sp, GPR_SAVE_OFFSET(27)]
+	ldp x29, x30, [sp, GPR_SAVE_OFFSET(29)]
+	ldp d8, d9, [sp, FPR_SAVE_OFFSET(8)]
+	ldp d10, d11, [sp, FPR_SAVE_OFFSET(10)]
+	ldp d12, d13, [sp, FPR_SAVE_OFFSET(12)]
+	ldp d14, d15, [sp, FPR_SAVE_OFFSET(14)]
+	add sp, sp, {#}CINTERP_STACK_SIZE
+	ret
+END_PROC(c_cInterpreter)

runtime/vm/module.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-Copyright (c) 2001, 2018 IBM Corp. and others
+Copyright (c) 2001, 2019 IBM Corp. and others
 
 This program and the accompanying materials are made available under
 the terms of the Eclipse Public License 2.0 which accompanies this
@@ -81,6 +81,9 @@ SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-excepti
 			<makefilestub data="UMA_OBJECTS:=$(filter-out armcinterp%,$(UMA_OBJECTS))\n">
 				<exclude-if condition="spec.flags.arch_arm"/>
 			</makefilestub>
+			<makefilestub data="UMA_OBJECTS:=$(filter-out arm64cinterp%,$(UMA_OBJECTS))\n">
+				<exclude-if condition="spec.flags.arch_aarch64"/>
+			</makefilestub>
 			<makefilestub data="UMA_OBJECTS:=$(filter-out pcinterp%,$(UMA_OBJECTS))\n">
 				<exclude-if condition="spec.flags.arch_power"/>
 			</makefilestub>