9fa9840691
Build the blob .cc and .hh files in the same directory as the file they're based off of. Move the GDB XML files into the arch directories they go with. Change-Id: I12fe48873312c3aba5910989d6e3049ebd5e5bbf Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/48136 Reviewed-by: Gabe Black <gabe.black@gmail.com> Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Maintainer: Gabe Black <gabe.black@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
322 lines
13 KiB
C++
322 lines
13 KiB
C++
/*
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* Copyright 2015 LabWare
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* Copyright 2014 Google, Inc.
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* Copyright (c) 2010 ARM Limited
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* Copyright (c) 2021 IBM Corporation
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2002-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1990, 1993 The Regents of the University of California
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* All rights reserved
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratories.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94
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*/
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* $NetBSD: kgdb_stub.c,v 1.8 2001/07/07 22:58:00 wdk Exp $
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*
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* Taken from NetBSD
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*
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* "Stub" to allow remote cpu to debug over a serial line using gdb.
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*/
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#include "arch/power/remote_gdb.hh"
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#include <sys/signal.h>
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#include <unistd.h>
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#include <string>
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#include "arch/power/gdb-xml/gdb_xml_power64_core.hh"
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#include "arch/power/gdb-xml/gdb_xml_power_core.hh"
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#include "arch/power/gdb-xml/gdb_xml_power_fpu.hh"
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#include "arch/power/gdb-xml/gdb_xml_powerpc_32.hh"
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#include "arch/power/gdb-xml/gdb_xml_powerpc_64.hh"
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#include "arch/power/regs/misc.hh"
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#include "cpu/thread_state.hh"
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#include "debug/GDBAcc.hh"
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#include "debug/GDBMisc.hh"
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#include "mem/page_table.hh"
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#include "sim/byteswap.hh"
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namespace gem5
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{
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using namespace PowerISA;
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RemoteGDB::RemoteGDB(System *_system, int _port)
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: BaseRemoteGDB(_system, _port), regCache32(this), regCache64(this)
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{
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}
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/*
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* Determine if the mapping at va..(va+len) is valid.
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*/
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bool
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RemoteGDB::acc(Addr va, size_t len)
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{
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// Check to make sure the first byte is mapped into the processes address
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// space. At the time of this writing, the acc() check is used when
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// processing the MemR/MemW packets before actually asking the translating
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// port proxy to read/writeBlob. I (bgs) am not convinced the first byte
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// check is enough.
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panic_if(FullSystem, "acc not implemented for POWER FS!");
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return context()->getProcessPtr()->pTable->lookup(va) != nullptr;
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}
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void
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RemoteGDB::PowerGdbRegCache::getRegs(ThreadContext *context)
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{
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DPRINTF(GDBAcc, "getRegs in remotegdb \n");
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Msr msr = context->readIntReg(INTREG_MSR);
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ByteOrder order = (msr.le ? ByteOrder::little : ByteOrder::big);
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// Default order on 32-bit PowerPC:
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// R0-R31 (32-bit each), F0-F31 (64-bit IEEE754 double),
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// PC, MSR, CR, LR, CTR, XER, FPSCR (32-bit each)
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for (int i = 0; i < NumIntArchRegs; i++)
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r.gpr[i] = htog((uint32_t)context->readIntReg(i), order);
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for (int i = 0; i < NumFloatArchRegs; i++)
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r.fpr[i] = context->readFloatReg(i);
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r.pc = htog((uint32_t)context->pcState().pc(), order);
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r.msr = 0; // MSR is privileged, hence not exposed here
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r.cr = htog((uint32_t)context->readIntReg(INTREG_CR), order);
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r.lr = htog((uint32_t)context->readIntReg(INTREG_LR), order);
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r.ctr = htog((uint32_t)context->readIntReg(INTREG_CTR), order);
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r.xer = htog((uint32_t)context->readIntReg(INTREG_XER), order);
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r.fpscr = htog((uint32_t)context->readIntReg(INTREG_FPSCR), order);
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}
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void
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RemoteGDB::PowerGdbRegCache::setRegs(ThreadContext *context) const
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{
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DPRINTF(GDBAcc, "setRegs in remotegdb \n");
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Msr msr = context->readIntReg(INTREG_MSR);
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ByteOrder order = (msr.le ? ByteOrder::little : ByteOrder::big);
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for (int i = 0; i < NumIntArchRegs; i++)
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context->setIntReg(i, gtoh(r.gpr[i], order));
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for (int i = 0; i < NumFloatArchRegs; i++)
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context->setFloatReg(i, r.fpr[i]);
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auto pc = context->pcState();
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pc.byteOrder(order);
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pc.set(gtoh(r.pc, order));
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context->pcState(pc);
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// MSR is privileged, hence not modified here
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context->setIntReg(INTREG_CR, gtoh(r.cr, order));
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context->setIntReg(INTREG_LR, gtoh(r.lr, order));
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context->setIntReg(INTREG_CTR, gtoh(r.ctr, order));
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context->setIntReg(INTREG_XER, gtoh(r.xer, order));
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context->setIntReg(INTREG_FPSCR, gtoh(r.fpscr, order));
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}
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void
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RemoteGDB::Power64GdbRegCache::getRegs(ThreadContext *context)
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{
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DPRINTF(GDBAcc, "getRegs in remotegdb \n");
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Msr msr = context->readIntReg(INTREG_MSR);
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ByteOrder order = (msr.le ? ByteOrder::little : ByteOrder::big);
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// Default order on 64-bit PowerPC:
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// GPRR0-GPRR31 (64-bit each), FPR0-FPR31 (64-bit IEEE754 double),
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// CIA, MSR, CR, LR, CTR, XER, FPSCR (only CR, XER, FPSCR are 32-bit
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// each and the rest are 64-bit)
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for (int i = 0; i < NumIntArchRegs; i++)
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r.gpr[i] = htog(context->readIntReg(i), order);
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for (int i = 0; i < NumFloatArchRegs; i++)
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r.fpr[i] = context->readFloatReg(i);
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r.pc = htog(context->pcState().pc(), order);
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r.msr = 0; // MSR is privileged, hence not exposed here
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r.cr = htog((uint32_t)context->readIntReg(INTREG_CR), order);
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r.lr = htog(context->readIntReg(INTREG_LR), order);
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r.ctr = htog(context->readIntReg(INTREG_CTR), order);
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r.xer = htog((uint32_t)context->readIntReg(INTREG_XER), order);
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r.fpscr = htog((uint32_t)context->readIntReg(INTREG_FPSCR), order);
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}
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void
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RemoteGDB::Power64GdbRegCache::setRegs(ThreadContext *context) const
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{
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DPRINTF(GDBAcc, "setRegs in remotegdb \n");
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Msr msr = context->readIntReg(INTREG_MSR);
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ByteOrder order = (msr.le ? ByteOrder::little : ByteOrder::big);
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for (int i = 0; i < NumIntArchRegs; i++)
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context->setIntReg(i, gtoh(r.gpr[i], order));
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for (int i = 0; i < NumFloatArchRegs; i++)
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context->setFloatReg(i, r.fpr[i]);
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auto pc = context->pcState();
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pc.byteOrder(order);
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pc.set(gtoh(r.pc, order));
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context->pcState(pc);
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// MSR is privileged, hence not modified here
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context->setIntReg(INTREG_CR, gtoh(r.cr, order));
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context->setIntReg(INTREG_LR, gtoh(r.lr, order));
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context->setIntReg(INTREG_CTR, gtoh(r.ctr, order));
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context->setIntReg(INTREG_XER, gtoh(r.xer, order));
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context->setIntReg(INTREG_FPSCR, gtoh(r.fpscr, order));
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}
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BaseGdbRegCache*
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RemoteGDB::gdbRegs()
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{
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Msr msr = context()->readIntReg(INTREG_MSR);
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if (msr.sf)
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return ®Cache64;
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else
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return ®Cache32;
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}
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bool
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RemoteGDB::getXferFeaturesRead(const std::string &annex, std::string &output)
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{
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#define GDB_XML(x, s) \
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{ x, std::string(reinterpret_cast<const char *>(Blobs::s), \
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Blobs::s ## _len) }
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static const std::map<std::string, std::string> annexMap32{
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GDB_XML("target.xml", gdb_xml_powerpc_32),
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GDB_XML("power-core.xml", gdb_xml_power_core),
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GDB_XML("power-fpu.xml", gdb_xml_power_fpu)
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};
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static const std::map<std::string, std::string> annexMap64{
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GDB_XML("target.xml", gdb_xml_powerpc_64),
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GDB_XML("power64-core.xml", gdb_xml_power64_core),
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GDB_XML("power-fpu.xml", gdb_xml_power_fpu)
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};
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#undef GDB_XML
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Msr msr = context()->readIntReg(INTREG_MSR);
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auto& annexMap = msr.sf ? annexMap64 : annexMap32;
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auto it = annexMap.find(annex);
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if (it == annexMap.end())
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return false;
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output = it->second;
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return true;
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}
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} // namespace gem5
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