--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.sparc/src/org/graalvm/compiler/lir/sparc/SPARCBreakpointOp.java 2020-05-01 02:31:02.461938190 -0700 +++ /dev/null 2020-03-09 18:57:19.455001459 -0700 @@ -1,64 +0,0 @@ -/* - * Copyright (c) 2012, 2018, 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. - */ - - -package org.graalvm.compiler.lir.sparc; - -import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; -import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; - -import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; -import org.graalvm.compiler.lir.LIRInstructionClass; -import org.graalvm.compiler.lir.Opcode; -import org.graalvm.compiler.lir.asm.CompilationResultBuilder; - -import jdk.vm.ci.meta.Value; - -/** - * Emits a breakpoint. - */ -@Opcode("BREAKPOINT") -public final class SPARCBreakpointOp extends SPARCLIRInstruction { - public static final LIRInstructionClass TYPE = LIRInstructionClass.create(SPARCBreakpointOp.class); - public static final SizeEstimate SIZE = SizeEstimate.create(1); - - // historical - from hotspot src/cpu/sparc/vm - // promises that the system will not use traps 16-31 - // We want to use ST_BREAKPOINT here, but the debugger is confused by it. - public static final int ST_RESERVED_FOR_USER_0 = 0x10; - - /** - * A set of values loaded into the Java ABI parameter locations (for inspection by a debugger). - */ - @Use({REG, STACK}) protected Value[] parameters; - - public SPARCBreakpointOp(Value[] parameters) { - super(TYPE, SIZE); - this.parameters = parameters; - } - - @Override - public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { - masm.ta(ST_RESERVED_FOR_USER_0); - } -}