1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31/*
32 * Copyright (c) 1990, 1993
33 * The Regents of the University of California. All rights reserved.
34 *
35 * This software was developed by the Computer Systems Engineering group
36 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
37 * contributed to Berkeley.
38 *
39 * All advertising materials mentioning features or use of this software
40 * must display the following acknowledgement:
41 * This product includes software developed by the University of
42 * California, Lawrence Berkeley Laboratories.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgement:
54 * This product includes software developed by the University of
55 * California, Berkeley and its contributors.
56 * 4. Neither the name of the University nor the names of its contributors
57 * may be used to endorse or promote products derived from this software
58 * without specific prior written permission.
59 *
60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70 * SUCH DAMAGE.
71 *
72 * @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94
73 */
74
75/*-
76 * Copyright (c) 2001 The NetBSD Foundation, Inc.
77 * All rights reserved.
78 *
79 * This code is derived from software contributed to The NetBSD Foundation
80 * by Jason R. Thorpe.
81 *
82 * Redistribution and use in source and binary forms, with or without
83 * modification, are permitted provided that the following conditions
84 * are met:
85 * 1. Redistributions of source code must retain the above copyright
86 * notice, this list of conditions and the following disclaimer.
87 * 2. Redistributions in binary form must reproduce the above copyright
88 * notice, this list of conditions and the following disclaimer in the
89 * documentation and/or other materials provided with the distribution.
90 * 3. All advertising materials mentioning features or use of this software
91 * must display the following acknowledgement:
92 * This product includes software developed by the NetBSD
93 * Foundation, Inc. and its contributors.
94 * 4. Neither the name of The NetBSD Foundation nor the names of its
95 * contributors may be used to endorse or promote products derived
96 * from this software without specific prior written permission.
97 *
98 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
99 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
100 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
101 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
102 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
103 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
104 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
105 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
106 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
107 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
108 * POSSIBILITY OF SUCH DAMAGE.
109 */
110
111/*
112 * $NetBSD: kgdb_stub.c,v 1.8 2001/07/07 22:58:00 wdk Exp $
113 *
114 * Taken from NetBSD
115 *
116 * "Stub" to allow remote cpu to debug over a serial line using gdb.
117 */
118
119#include <sys/signal.h>
120#include <unistd.h>
121
122#include <string>
123
124#include "arch/sparc/remote_gdb.hh"
125#include "arch/vtophys.hh"
126#include "base/intmath.hh"
127#include "base/remote_gdb.hh"
128#include "base/socket.hh"
129#include "base/trace.hh"
130#include "config/full_system.hh"
131#include "cpu/static_inst.hh"
132#include "cpu/thread_context.hh"
| 1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31/*
32 * Copyright (c) 1990, 1993
33 * The Regents of the University of California. All rights reserved.
34 *
35 * This software was developed by the Computer Systems Engineering group
36 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
37 * contributed to Berkeley.
38 *
39 * All advertising materials mentioning features or use of this software
40 * must display the following acknowledgement:
41 * This product includes software developed by the University of
42 * California, Lawrence Berkeley Laboratories.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgement:
54 * This product includes software developed by the University of
55 * California, Berkeley and its contributors.
56 * 4. Neither the name of the University nor the names of its contributors
57 * may be used to endorse or promote products derived from this software
58 * without specific prior written permission.
59 *
60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70 * SUCH DAMAGE.
71 *
72 * @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94
73 */
74
75/*-
76 * Copyright (c) 2001 The NetBSD Foundation, Inc.
77 * All rights reserved.
78 *
79 * This code is derived from software contributed to The NetBSD Foundation
80 * by Jason R. Thorpe.
81 *
82 * Redistribution and use in source and binary forms, with or without
83 * modification, are permitted provided that the following conditions
84 * are met:
85 * 1. Redistributions of source code must retain the above copyright
86 * notice, this list of conditions and the following disclaimer.
87 * 2. Redistributions in binary form must reproduce the above copyright
88 * notice, this list of conditions and the following disclaimer in the
89 * documentation and/or other materials provided with the distribution.
90 * 3. All advertising materials mentioning features or use of this software
91 * must display the following acknowledgement:
92 * This product includes software developed by the NetBSD
93 * Foundation, Inc. and its contributors.
94 * 4. Neither the name of The NetBSD Foundation nor the names of its
95 * contributors may be used to endorse or promote products derived
96 * from this software without specific prior written permission.
97 *
98 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
99 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
100 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
101 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
102 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
103 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
104 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
105 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
106 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
107 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
108 * POSSIBILITY OF SUCH DAMAGE.
109 */
110
111/*
112 * $NetBSD: kgdb_stub.c,v 1.8 2001/07/07 22:58:00 wdk Exp $
113 *
114 * Taken from NetBSD
115 *
116 * "Stub" to allow remote cpu to debug over a serial line using gdb.
117 */
118
119#include <sys/signal.h>
120#include <unistd.h>
121
122#include <string>
123
124#include "arch/sparc/remote_gdb.hh"
125#include "arch/vtophys.hh"
126#include "base/intmath.hh"
127#include "base/remote_gdb.hh"
128#include "base/socket.hh"
129#include "base/trace.hh"
130#include "config/full_system.hh"
131#include "cpu/static_inst.hh"
132#include "cpu/thread_context.hh"
|
133#include "mem/page_table.hh"
134#include "mem/physical.hh"
135#include "mem/port.hh"
136#include "sim/byteswap.hh"
137#include "sim/process.hh"
138#include "sim/system.hh"
139
140using namespace std;
141using namespace SparcISA;
142
143RemoteGDB::RemoteGDB(System *_system, ThreadContext *c)
144 : BaseRemoteGDB(_system, c, NumGDBRegs), nextBkpt(0)
145{}
146
147///////////////////////////////////////////////////////////
148// RemoteGDB::acc
149//
150// Determine if the mapping at va..(va+len) is valid.
151//
152bool
153RemoteGDB::acc(Addr va, size_t len)
154{
155 //@Todo In NetBSD, this function checks if all addresses
156 // from va to va + len have valid page map entries. Not
157 // sure how this will work for other OSes or in general.
158#if FULL_SYSTEM
159 if (va)
160 return true;
161 return false;
162#else
163 TlbEntry entry;
164 // Check to make sure the first byte is mapped into the processes address
165 // space.
166 if (context->getProcessPtr()->pTable->lookup(va, entry))
167 return true;
168 return false;
169#endif
170}
171
172///////////////////////////////////////////////////////////
173// RemoteGDB::getregs
174//
175// Translate the kernel debugger register format into
176// the GDB register format.
177void
178RemoteGDB::getregs()
179{
180 memset(gdbregs.regs, 0, gdbregs.size);
181
182 PCState pc = context->pcState();
183
184 if (context->readMiscReg(MISCREG_PSTATE) &
185 PSTATE::am) {
186 uint32_t *regs;
187 regs = (uint32_t*)gdbregs.regs;
188 regs[Reg32Pc] = htobe((uint32_t)pc.pc());
189 regs[Reg32Npc] = htobe((uint32_t)pc.npc());
190 for (int x = RegG0; x <= RegI0 + 7; x++)
191 regs[x] = htobe((uint32_t)context->readIntReg(x - RegG0));
192
193 regs[Reg32Y] = htobe((uint32_t)context->readIntReg(NumIntArchRegs + 1));
194 regs[Reg32Psr] = htobe((uint32_t)context->readMiscReg(MISCREG_PSTATE));
195 regs[Reg32Fsr] = htobe((uint32_t)context->readMiscReg(MISCREG_FSR));
196 regs[Reg32Csr] = htobe((uint32_t)context->readIntReg(NumIntArchRegs + 2));
197 } else {
198 gdbregs.regs[RegPc] = htobe(pc.pc());
199 gdbregs.regs[RegNpc] = htobe(pc.npc());
200 for (int x = RegG0; x <= RegI0 + 7; x++)
201 gdbregs.regs[x] = htobe(context->readIntReg(x - RegG0));
202
203 gdbregs.regs[RegFsr] = htobe(context->readMiscReg(MISCREG_FSR));
204 gdbregs.regs[RegFprs] = htobe(context->readMiscReg(MISCREG_FPRS));
205 gdbregs.regs[RegY] = htobe(context->readIntReg(NumIntArchRegs + 1));
206 gdbregs.regs[RegState] = htobe(
207 context->readMiscReg(MISCREG_CWP) |
208 context->readMiscReg(MISCREG_PSTATE) << 8 |
209 context->readMiscReg(MISCREG_ASI) << 24 |
210 context->readIntReg(NumIntArchRegs + 2) << 32);
211 }
212
213 DPRINTF(GDBRead, "PC=%#x\n", gdbregs.regs[RegPc]);
214
215 // Floating point registers are left at 0 in netbsd
216 // All registers other than the pc, npc and int regs
217 // are ignored as well.
218}
219
220///////////////////////////////////////////////////////////
221// RemoteGDB::setregs
222//
223// Translate the GDB register format into the kernel
224// debugger register format.
225//
226void
227RemoteGDB::setregs()
228{
229 PCState pc;
230 pc.pc(gdbregs.regs[RegPc]);
231 pc.npc(gdbregs.regs[RegNpc]);
232 pc.nnpc(pc.npc() + sizeof(MachInst));
233 pc.upc(0);
234 pc.nupc(1);
235 context->pcState(pc);
236 for (int x = RegG0; x <= RegI0 + 7; x++)
237 context->setIntReg(x - RegG0, gdbregs.regs[x]);
238 // Only the integer registers, pc and npc are set in netbsd
239}
240
241void
242RemoteGDB::clearSingleStep()
243{
244 if (nextBkpt)
245 clearTempBreakpoint(nextBkpt);
246}
247
248void
249RemoteGDB::setSingleStep()
250{
251 nextBkpt = context->pcState().npc();
252 setTempBreakpoint(nextBkpt);
253}
| 134#include "mem/page_table.hh"
135#include "mem/physical.hh"
136#include "mem/port.hh"
137#include "sim/byteswap.hh"
138#include "sim/process.hh"
139#include "sim/system.hh"
140
141using namespace std;
142using namespace SparcISA;
143
144RemoteGDB::RemoteGDB(System *_system, ThreadContext *c)
145 : BaseRemoteGDB(_system, c, NumGDBRegs), nextBkpt(0)
146{}
147
148///////////////////////////////////////////////////////////
149// RemoteGDB::acc
150//
151// Determine if the mapping at va..(va+len) is valid.
152//
153bool
154RemoteGDB::acc(Addr va, size_t len)
155{
156 //@Todo In NetBSD, this function checks if all addresses
157 // from va to va + len have valid page map entries. Not
158 // sure how this will work for other OSes or in general.
159#if FULL_SYSTEM
160 if (va)
161 return true;
162 return false;
163#else
164 TlbEntry entry;
165 // Check to make sure the first byte is mapped into the processes address
166 // space.
167 if (context->getProcessPtr()->pTable->lookup(va, entry))
168 return true;
169 return false;
170#endif
171}
172
173///////////////////////////////////////////////////////////
174// RemoteGDB::getregs
175//
176// Translate the kernel debugger register format into
177// the GDB register format.
178void
179RemoteGDB::getregs()
180{
181 memset(gdbregs.regs, 0, gdbregs.size);
182
183 PCState pc = context->pcState();
184
185 if (context->readMiscReg(MISCREG_PSTATE) &
186 PSTATE::am) {
187 uint32_t *regs;
188 regs = (uint32_t*)gdbregs.regs;
189 regs[Reg32Pc] = htobe((uint32_t)pc.pc());
190 regs[Reg32Npc] = htobe((uint32_t)pc.npc());
191 for (int x = RegG0; x <= RegI0 + 7; x++)
192 regs[x] = htobe((uint32_t)context->readIntReg(x - RegG0));
193
194 regs[Reg32Y] = htobe((uint32_t)context->readIntReg(NumIntArchRegs + 1));
195 regs[Reg32Psr] = htobe((uint32_t)context->readMiscReg(MISCREG_PSTATE));
196 regs[Reg32Fsr] = htobe((uint32_t)context->readMiscReg(MISCREG_FSR));
197 regs[Reg32Csr] = htobe((uint32_t)context->readIntReg(NumIntArchRegs + 2));
198 } else {
199 gdbregs.regs[RegPc] = htobe(pc.pc());
200 gdbregs.regs[RegNpc] = htobe(pc.npc());
201 for (int x = RegG0; x <= RegI0 + 7; x++)
202 gdbregs.regs[x] = htobe(context->readIntReg(x - RegG0));
203
204 gdbregs.regs[RegFsr] = htobe(context->readMiscReg(MISCREG_FSR));
205 gdbregs.regs[RegFprs] = htobe(context->readMiscReg(MISCREG_FPRS));
206 gdbregs.regs[RegY] = htobe(context->readIntReg(NumIntArchRegs + 1));
207 gdbregs.regs[RegState] = htobe(
208 context->readMiscReg(MISCREG_CWP) |
209 context->readMiscReg(MISCREG_PSTATE) << 8 |
210 context->readMiscReg(MISCREG_ASI) << 24 |
211 context->readIntReg(NumIntArchRegs + 2) << 32);
212 }
213
214 DPRINTF(GDBRead, "PC=%#x\n", gdbregs.regs[RegPc]);
215
216 // Floating point registers are left at 0 in netbsd
217 // All registers other than the pc, npc and int regs
218 // are ignored as well.
219}
220
221///////////////////////////////////////////////////////////
222// RemoteGDB::setregs
223//
224// Translate the GDB register format into the kernel
225// debugger register format.
226//
227void
228RemoteGDB::setregs()
229{
230 PCState pc;
231 pc.pc(gdbregs.regs[RegPc]);
232 pc.npc(gdbregs.regs[RegNpc]);
233 pc.nnpc(pc.npc() + sizeof(MachInst));
234 pc.upc(0);
235 pc.nupc(1);
236 context->pcState(pc);
237 for (int x = RegG0; x <= RegI0 + 7; x++)
238 context->setIntReg(x - RegG0, gdbregs.regs[x]);
239 // Only the integer registers, pc and npc are set in netbsd
240}
241
242void
243RemoteGDB::clearSingleStep()
244{
245 if (nextBkpt)
246 clearTempBreakpoint(nextBkpt);
247}
248
249void
250RemoteGDB::setSingleStep()
251{
252 nextBkpt = context->pcState().npc();
253 setTempBreakpoint(nextBkpt);
254}
|