/*
* 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.
*/
package jdk.tools.jaotc;
import java.util.List;
import jdk.vm.ci.code.site.Mark;
public final class CodeOffsets {
private final int entry;
private final int verifiedEntry;
private final int exceptionHandler;
private final int deoptHandler;
private CodeOffsets(int entry, int verifiedEntry, int exceptionHandler, int deoptHandler) {
this.entry = entry;
this.verifiedEntry = verifiedEntry;
this.exceptionHandler = exceptionHandler;
this.deoptHandler = deoptHandler;
}
public static CodeOffsets buildFrom(List<Mark> marks) {
int entry = 0;
int verifiedEntry = 0;
int exceptionHandler = -1;
int deoptHandler = -1;
for (Mark mark : marks) {
if (mark.id instanceof Integer) {
MarkId markId = MarkId.getEnum((int) mark.id);
switch (markId) {
case UNVERIFIED_ENTRY:
entry = mark.pcOffset;
break;
case VERIFIED_ENTRY:
verifiedEntry = mark.pcOffset;
break;
case OSR_ENTRY:
// Unhandled
break;
case EXCEPTION_HANDLER_ENTRY:
exceptionHandler = mark.pcOffset;
break;
case DEOPT_HANDLER_ENTRY:
deoptHandler = mark.pcOffset;
break;
default:
break; // Ignore others
}
}
}
return new CodeOffsets(entry, verifiedEntry, exceptionHandler, deoptHandler);
}
public int entry() {
return entry;
}
public int verifiedEntry() {
return verifiedEntry;
}
public int exceptionHandler() {
return exceptionHandler;
}
public int deoptHandler() {
return deoptHandler;
}
}