| /* |
| * 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. |
| */ |
| |
| /* |
| * 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 <sys/signal.h> |
| #include <unistd.h> |
| |
| #include <string> |
| |
| #include "blobs/gdb_xml_power.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 PowerISA; |
| |
| RemoteGDB::RemoteGDB(System *_system, int _port) |
| : BaseRemoteGDB(_system, _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->readFloatReg(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->setFloatReg(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; |
| } |
| |
| bool |
| RemoteGDB::getXferFeaturesRead(const std::string &annex, std::string &output) |
| { |
| #define GDB_XML(x, s) \ |
| { x, std::string(reinterpret_cast<const char *>(Blobs::s), \ |
| Blobs::s ## _len) } |
| static const std::map<std::string, std::string> annexMap { |
| GDB_XML("target.xml", gdb_xml_power), |
| }; |
| #undef GDB_XML |
| auto it = annexMap.find(annex); |
| if (it == annexMap.end()) |
| return false; |
| output = it->second; |
| return true; |
| } |