/* * Copyright 2015 LabWare * Copyright 2014 Google, Inc. * Copyright (c) 2010 ARM Limited * All rights reserved * * The license below extends only to copyright in the software and shall * not be construed as granting a license to any other intellectual * property including but not limited to intellectual property relating * to a hardware implementation of the functionality of the software * licensed hereunder. You may use the software subject to the license * terms below provided that you ensure that this notice is replicated * unmodified and in its entirety in all distributions of the software, * modified or unmodified, in source code or in binary form. * * Copyright (c) 2002-2005 The Regents of The University of Michigan * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer; * redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution; * neither the name of the copyright holders nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Authors: Nathan Binkert * William Wang * Deyuan Guo * Boris Shingarov */ /* * Copyright (c) 1990, 1993 The Regents of the University of California * All rights reserved * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratories. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94 */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * $NetBSD: kgdb_stub.c,v 1.8 2001/07/07 22:58:00 wdk Exp $ * * Taken from NetBSD * * "Stub" to allow remote cpu to debug over a serial line using gdb. */ #include "arch/power/remote_gdb.hh" #include #include #include #include "arch/power/vtophys.hh" #include "cpu/thread_state.hh" #include "debug/GDBAcc.hh" #include "debug/GDBMisc.hh" #include "mem/page_table.hh" #include "sim/byteswap.hh" using namespace std; using namespace PowerISA; RemoteGDB::RemoteGDB(System *_system, ThreadContext *tc, int _port) : BaseRemoteGDB(_system, tc, _port), regCache(this) { } /* * Determine if the mapping at va..(va+len) is valid. */ bool RemoteGDB::acc(Addr va, size_t len) { // Check to make sure the first byte is mapped into the processes address // space. At the time of this writing, the acc() check is used when // processing the MemR/MemW packets before actually asking the translating // port proxy to read/writeBlob. I (bgs) am not convinced the first byte // check is enough. panic_if(FullSystem, "acc not implemented for POWER FS!"); return context()->getProcessPtr()->pTable->lookup(va) != nullptr; } void RemoteGDB::PowerGdbRegCache::getRegs(ThreadContext *context) { DPRINTF(GDBAcc, "getRegs in remotegdb \n"); // Default order on 32-bit PowerPC: // R0-R31 (32-bit each), F0-F31 (64-bit IEEE754 double), // PC, MSR, CR, LR, CTR, XER (32-bit each) for (int i = 0; i < NumIntArchRegs; i++) r.gpr[i] = htobe((uint32_t)context->readIntReg(i)); for (int i = 0; i < NumFloatArchRegs; i++) r.fpr[i] = context->readFloatRegBits(i); r.pc = htobe((uint32_t)context->pcState().pc()); r.msr = 0; // Is MSR modeled? r.cr = htobe((uint32_t)context->readIntReg(INTREG_CR)); r.lr = htobe((uint32_t)context->readIntReg(INTREG_LR)); r.ctr = htobe((uint32_t)context->readIntReg(INTREG_CTR)); r.xer = htobe((uint32_t)context->readIntReg(INTREG_XER)); } void RemoteGDB::PowerGdbRegCache::setRegs(ThreadContext *context) const { DPRINTF(GDBAcc, "setRegs in remotegdb \n"); for (int i = 0; i < NumIntArchRegs; i++) context->setIntReg(i, betoh(r.gpr[i])); for (int i = 0; i < NumFloatArchRegs; i++) context->setFloatRegBits(i, r.fpr[i]); context->pcState(betoh(r.pc)); // Is MSR modeled? context->setIntReg(INTREG_CR, betoh(r.cr)); context->setIntReg(INTREG_LR, betoh(r.lr)); context->setIntReg(INTREG_CTR, betoh(r.ctr)); context->setIntReg(INTREG_XER, betoh(r.xer)); } BaseGdbRegCache* RemoteGDB::gdbRegs() { return ®Cache; }