/* * Copyright 2015 LabWare * Copyright 2014 Google, Inc. * 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 * 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/sparc/remote_gdb.hh" #include #include #include #include #include "arch/vtophys.hh" #include "base/intmath.hh" #include "base/remote_gdb.hh" #include "base/socket.hh" #include "base/trace.hh" #include "cpu/static_inst.hh" #include "cpu/thread_context.hh" #include "debug/GDBAcc.hh" #include "debug/GDBRead.hh" #include "mem/page_table.hh" #include "mem/physical.hh" #include "mem/port.hh" #include "sim/byteswap.hh" #include "sim/full_system.hh" #include "sim/process.hh" #include "sim/system.hh" using namespace std; using namespace SparcISA; RemoteGDB::RemoteGDB(System *_system, ThreadContext *c, int _port) : BaseRemoteGDB(_system, c, _port), regCache32(this), regCache64(this) {} /////////////////////////////////////////////////////////// // RemoteGDB::acc // // Determine if the mapping at va..(va+len) is valid. // bool RemoteGDB::acc(Addr va, size_t len) { //@Todo In NetBSD, this function checks if all addresses // from va to va + len have valid page map entries. Not // sure how this will work for other OSes or in general. if (FullSystem) { return va != 0; } else { // Check to make sure the first byte is mapped into the processes // address space. return context()->getProcessPtr()->pTable->lookup(va) != nullptr; } } void RemoteGDB::SPARCGdbRegCache::getRegs(ThreadContext *context) { DPRINTF(GDBAcc, "getRegs in remotegdb \n"); for (int i = 0; i < 32; i++) r.gpr[i] = htobe((uint32_t)context->readIntReg(i)); PCState pc = context->pcState(); r.pc = htobe((uint32_t)pc.pc()); r.npc = htobe((uint32_t)pc.npc()); r.y = htobe((uint32_t)context->readIntReg(NumIntArchRegs + 1)); PSTATE pstate = context->readMiscReg(MISCREG_PSTATE); r.psr = htobe((uint32_t)pstate); r.fsr = htobe((uint32_t)context->readMiscReg(MISCREG_FSR)); r.csr = htobe((uint32_t)context->readIntReg(NumIntArchRegs + 2)); } void RemoteGDB::SPARC64GdbRegCache::getRegs(ThreadContext *context) { DPRINTF(GDBAcc, "getRegs in remotegdb \n"); for (int i = 0; i < 32; i++) r.gpr[i] = htobe(context->readIntReg(i)); for (int i = 0; i < 32; i++) r.fpr[i] = 0; PCState pc = context->pcState(); r.pc = htobe(pc.pc()); r.npc = htobe(pc.npc()); r.fsr = htobe(context->readMiscReg(MISCREG_FSR)); r.fprs = htobe(context->readMiscReg(MISCREG_FPRS)); r.y = htobe(context->readIntReg(NumIntArchRegs + 1)); PSTATE pstate = context->readMiscReg(MISCREG_PSTATE); r.state = htobe( context->readMiscReg(MISCREG_CWP) | pstate << 8 | context->readMiscReg(MISCREG_ASI) << 24 | context->readIntReg(NumIntArchRegs + 2) << 32); } void RemoteGDB::SPARCGdbRegCache::setRegs(ThreadContext *context) const { for (int i = 0; i < 32; i++) context->setIntReg(i, r.gpr[i]); PCState pc; pc.pc(r.pc); pc.npc(r.npc); pc.nnpc(pc.npc() + sizeof(MachInst)); pc.upc(0); pc.nupc(1); context->pcState(pc); // Floating point registers are left at 0 in netbsd // All registers other than the pc, npc and int regs // are ignored as well. } void RemoteGDB::SPARC64GdbRegCache::setRegs(ThreadContext *context) const { for (int i = 0; i < 32; i++) context->setIntReg(i, r.gpr[i]); PCState pc; pc.pc(r.pc); pc.npc(r.npc); pc.nnpc(pc.npc() + sizeof(MachInst)); pc.upc(0); pc.nupc(1); context->pcState(pc); // Floating point registers are left at 0 in netbsd // All registers other than the pc, npc and int regs // are ignored as well. } BaseGdbRegCache* RemoteGDB::gdbRegs() { PSTATE pstate = context()->readMiscReg(MISCREG_PSTATE); if (pstate.am) { return ®Cache32; } else { return ®Cache64; } }