| /* |
| * Copyright 2015 LabWare |
| * Copyright 2014 Google Inc. |
| * Copyright (c) 2010, 2013, 2016 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 |
| * 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/arm/remote_gdb.hh" |
| |
| #include <sys/signal.h> |
| #include <unistd.h> |
| |
| #include <string> |
| |
| #include "arch/arm/decoder.hh" |
| #include "arch/arm/pagetable.hh" |
| #include "arch/arm/registers.hh" |
| #include "arch/arm/system.hh" |
| #include "arch/arm/utility.hh" |
| #include "arch/arm/vtophys.hh" |
| #include "base/chunk_generator.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 "cpu/thread_state.hh" |
| #include "debug/GDBAcc.hh" |
| #include "debug/GDBMisc.hh" |
| #include "mem/page_table.hh" |
| #include "mem/physical.hh" |
| #include "mem/port.hh" |
| #include "sim/full_system.hh" |
| #include "sim/system.hh" |
| |
| using namespace std; |
| using namespace ArmISA; |
| |
| RemoteGDB::RemoteGDB(System *_system, ThreadContext *tc, int _port) |
| : BaseRemoteGDB(_system, tc, _port), regCache32(this), regCache64(this) |
| { |
| } |
| |
| /* |
| * Determine if the mapping at va..(va+len) is valid. |
| */ |
| bool |
| RemoteGDB::acc(Addr va, size_t len) |
| { |
| if (FullSystem) { |
| for (ChunkGenerator gen(va, len, PageBytes); !gen.done(); gen.next()) { |
| if (!virtvalid(context(), gen.addr())) { |
| DPRINTF(GDBAcc, "acc: %#x mapping is invalid\n", va); |
| return false; |
| } |
| } |
| |
| DPRINTF(GDBAcc, "acc: %#x mapping is valid\n", va); |
| return true; |
| } else { |
| // Check if the virtual address is valid and map a physical page if it |
| // hasn't been already |
| return context()->getProcessPtr()->getMemState()->translate(va); |
| } |
| } |
| |
| void |
| RemoteGDB::AArch64GdbRegCache::getRegs(ThreadContext *context) |
| { |
| DPRINTF(GDBAcc, "getRegs in remotegdb \n"); |
| |
| for (int i = 0; i < 31; ++i) |
| r.x[i] = context->readIntReg(INTREG_X0 + i); |
| r.spx = context->readIntReg(INTREG_SPX); |
| r.pc = context->pcState().pc(); |
| r.cpsr = context->readMiscRegNoEffect(MISCREG_CPSR); |
| |
| for (int i = 0; i < 32*4; i += 4) { |
| r.v[i + 0] = context->readFloatRegBits(i + 2); |
| r.v[i + 1] = context->readFloatRegBits(i + 3); |
| r.v[i + 2] = context->readFloatRegBits(i + 0); |
| r.v[i + 3] = context->readFloatRegBits(i + 1); |
| } |
| |
| for (int i = 0; i < 32; i ++) { |
| r.vec[i] = context->readVecReg(RegId(VecRegClass,i)); |
| } |
| } |
| |
| void |
| RemoteGDB::AArch64GdbRegCache::setRegs(ThreadContext *context) const |
| { |
| DPRINTF(GDBAcc, "setRegs in remotegdb \n"); |
| |
| for (int i = 0; i < 31; ++i) |
| context->setIntReg(INTREG_X0 + i, r.x[i]); |
| context->pcState(r.pc); |
| context->setMiscRegNoEffect(MISCREG_CPSR, r.cpsr); |
| // Update the stack pointer. This should be done after |
| // updating CPSR/PSTATE since that might affect how SPX gets |
| // mapped. |
| context->setIntReg(INTREG_SPX, r.spx); |
| |
| for (int i = 0; i < 32*4; i += 4) { |
| context->setFloatRegBits(i + 2, r.v[i + 0]); |
| context->setFloatRegBits(i + 3, r.v[i + 1]); |
| context->setFloatRegBits(i + 0, r.v[i + 2]); |
| context->setFloatRegBits(i + 1, r.v[i + 3]); |
| } |
| |
| for (int i = 0; i < 32; i ++) { |
| context->setVecReg(RegId(VecRegClass, i), r.vec[i]); |
| } |
| } |
| |
| void |
| RemoteGDB::AArch32GdbRegCache::getRegs(ThreadContext *context) |
| { |
| DPRINTF(GDBAcc, "getRegs in remotegdb \n"); |
| |
| r.gpr[0] = context->readIntReg(INTREG_R0); |
| r.gpr[1] = context->readIntReg(INTREG_R1); |
| r.gpr[2] = context->readIntReg(INTREG_R2); |
| r.gpr[3] = context->readIntReg(INTREG_R3); |
| r.gpr[4] = context->readIntReg(INTREG_R4); |
| r.gpr[5] = context->readIntReg(INTREG_R5); |
| r.gpr[6] = context->readIntReg(INTREG_R6); |
| r.gpr[7] = context->readIntReg(INTREG_R7); |
| r.gpr[8] = context->readIntReg(INTREG_R8); |
| r.gpr[9] = context->readIntReg(INTREG_R9); |
| r.gpr[10] = context->readIntReg(INTREG_R10); |
| r.gpr[11] = context->readIntReg(INTREG_R11); |
| r.gpr[12] = context->readIntReg(INTREG_R12); |
| r.gpr[13] = context->readIntReg(INTREG_SP); |
| r.gpr[14] = context->readIntReg(INTREG_LR); |
| r.gpr[15] = context->pcState().pc(); |
| |
| // One day somebody will implement transfer of FPRs correctly. |
| for (int i=0; i<8*3; i++) r.fpr[i] = 0; |
| |
| r.fpscr = context->readMiscRegNoEffect(MISCREG_FPSCR); |
| r.cpsr = context->readMiscRegNoEffect(MISCREG_CPSR); |
| } |
| |
| void |
| RemoteGDB::AArch32GdbRegCache::setRegs(ThreadContext *context) const |
| { |
| DPRINTF(GDBAcc, "setRegs in remotegdb \n"); |
| |
| context->setIntReg(INTREG_R0, r.gpr[0]); |
| context->setIntReg(INTREG_R1, r.gpr[1]); |
| context->setIntReg(INTREG_R2, r.gpr[2]); |
| context->setIntReg(INTREG_R3, r.gpr[3]); |
| context->setIntReg(INTREG_R4, r.gpr[4]); |
| context->setIntReg(INTREG_R5, r.gpr[5]); |
| context->setIntReg(INTREG_R6, r.gpr[6]); |
| context->setIntReg(INTREG_R7, r.gpr[7]); |
| context->setIntReg(INTREG_R8, r.gpr[8]); |
| context->setIntReg(INTREG_R9, r.gpr[9]); |
| context->setIntReg(INTREG_R10, r.gpr[10]); |
| context->setIntReg(INTREG_R11, r.gpr[11]); |
| context->setIntReg(INTREG_R12, r.gpr[12]); |
| context->setIntReg(INTREG_SP, r.gpr[13]); |
| context->setIntReg(INTREG_LR, r.gpr[14]); |
| context->pcState(r.gpr[15]); |
| |
| // One day somebody will implement transfer of FPRs correctly. |
| |
| context->setMiscReg(MISCREG_FPSCR, r.fpscr); |
| context->setMiscRegNoEffect(MISCREG_CPSR, r.cpsr); |
| } |
| |
| BaseGdbRegCache* |
| RemoteGDB::gdbRegs() |
| { |
| if (inAArch64(context())) |
| return ®Cache64; |
| else |
| return ®Cache32; |
| } |