Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/x86/BsdX86CFrame.java @ 3960:f08d439fab8c
7089790: integrate bsd-port changes
Reviewed-by: kvn, twisti, jrose
Contributed-by: Kurt Miller <kurt@intricatesoftware.com>, Greg Lewis <glewis@eyesbeyond.com>, Jung-uk Kim <jkim@freebsd.org>, Christos Zoulas <christos@zoulas.com>, Landon Fuller <landonf@plausible.coop>, The FreeBSD Foundation <board@freebsdfoundation.org>, Michael Franz <mvfranz@gmail.com>, Roger Hoover <rhoover@apple.com>, Alexander Strange <astrange@apple.com>
author | never |
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date | Sun, 25 Sep 2011 16:03:29 -0700 |
parents | |
children | b87e5a681416 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/x86/BsdX86CFrame.java Sun Sep 25 16:03:29 2011 -0700 @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2003, 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 sun.jvm.hotspot.debugger.bsd.x86; + +import sun.jvm.hotspot.debugger.*; +import sun.jvm.hotspot.debugger.bsd.*; +import sun.jvm.hotspot.debugger.cdbg.*; +import sun.jvm.hotspot.debugger.cdbg.basic.*; + +final public class BsdX86CFrame extends BasicCFrame { + // package/class internals only + public BsdX86CFrame(BsdDebugger dbg, Address ebp, Address pc) { + super(dbg.getCDebugger()); + this.ebp = ebp; + this.pc = pc; + this.dbg = dbg; + } + + // override base class impl to avoid ELF parsing + public ClosestSymbol closestSymbolToPC() { + // try native lookup in debugger. + return dbg.lookup(dbg.getAddressValue(pc())); + } + + public Address pc() { + return pc; + } + + public Address localVariableBase() { + return ebp; + } + + public CFrame sender() { + if (ebp == null) { + return null; + } + + Address nextEBP = ebp.getAddressAt( 0 * ADDRESS_SIZE); + if (nextEBP == null) { + return null; + } + Address nextPC = ebp.getAddressAt( 1 * ADDRESS_SIZE); + if (nextPC == null) { + return null; + } + return new BsdX86CFrame(dbg, nextEBP, nextPC); + } + + private static final int ADDRESS_SIZE = 4; + private Address pc; + private Address ebp; + private BsdDebugger dbg; +}