2 * Copyright 2014 Google, Inc.
3 * Copyright (c) 2010 ARM Limited
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating
9 * to a hardware implementation of the functionality of the software
10 * licensed hereunder. You may use the software subject to the license
11 * terms below provided that you ensure that this notice is replicated
12 * unmodified and in its entirety in all distributions of the software,
13 * modified or unmodified, in source code or in binary form.
15 * Copyright (c) 2002-2005 The Regents of The University of Michigan
16 * All rights reserved.
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions are
20 * met: redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer;
22 * redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution;
25 * neither the name of the copyright holders nor the names of its
26 * contributors may be used to endorse or promote products derived from
27 * this software without specific prior written permission.
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 * Authors: Nathan Binkert
47 * Copyright (c) 1990, 1993 The Regents of the University of California
50 * This software was developed by the Computer Systems Engineering group
51 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
52 * contributed to Berkeley.
54 * All advertising materials mentioning features or use of this software
55 * must display the following acknowledgement:
56 * This product includes software developed by the University of
57 * California, Lawrence Berkeley Laboratories.
59 * Redistribution and use in source and binary forms, with or without
60 * modification, are permitted provided that the following conditions
62 * 1. Redistributions of source code must retain the above copyright
63 * notice, this list of conditions and the following disclaimer.
64 * 2. Redistributions in binary form must reproduce the above copyright
65 * notice, this list of conditions and the following disclaimer in the
66 * documentation and/or other materials provided with the distribution.
67 * 3. All advertising materials mentioning features or use of this software
68 * must display the following acknowledgement:
69 * This product includes software developed by the University of
70 * California, Berkeley and its contributors.
71 * 4. Neither the name of the University nor the names of its contributors
72 * may be used to endorse or promote products derived from this software
73 * without specific prior written permission.
75 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
76 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
77 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
78 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
79 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
80 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
81 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
82 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
83 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
84 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
87 * @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94
91 * Copyright (c) 2001 The NetBSD Foundation, Inc.
92 * All rights reserved.
94 * This code is derived from software contributed to The NetBSD Foundation
97 * Redistribution and use in source and binary forms, with or without
98 * modification, are permitted provided that the following conditions
100 * 1. Redistributions of source code must retain the above copyright
101 * notice, this list of conditions and the following disclaimer.
102 * 2. Redistributions in binary form must reproduce the above copyright
103 * notice, this list of conditions and the following disclaimer in the
104 * documentation and/or other materials provided with the distribution.
105 * 3. All advertising materials mentioning features or use of this software
106 * must display the following acknowledgement:
107 * This product includes software developed by the NetBSD
108 * Foundation, Inc. and its contributors.
109 * 4. Neither the name of The NetBSD Foundation nor the names of its
110 * contributors may be used to endorse or promote products derived
111 * from this software without specific prior written permission.
113 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
114 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
115 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
116 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
117 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
118 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
119 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
120 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
121 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
122 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
123 * POSSIBILITY OF SUCH DAMAGE.
127 * $NetBSD: kgdb_stub.c,v 1.8 2001/07/07 22:58:00 wdk Exp $
131 * "Stub" to allow remote cpu to debug over a serial line using gdb.
134 #include <sys/signal.h>
139 #include "arch/mips/decoder.hh"
140 #include "arch/mips/remote_gdb.hh"
141 #include "arch/mips/vtophys.hh"
142 #include "cpu/thread_state.hh"
143 #include "debug/GDBAcc.hh"
144 #include "debug/GDBMisc.hh"
145 #include "mem/page_table.hh"
146 #include "sim/full_system.hh"
149 using namespace MipsISA
;
151 RemoteGDB::RemoteGDB(System
*_system
, ThreadContext
*tc
)
152 : BaseRemoteGDB(_system
, tc
, GdbNumRegs
* sizeof(uint32_t))
157 * Determine if the mapping at va..(va+len) is valid.
160 RemoteGDB::acc(Addr va
, size_t len
)
163 //Check to make sure the first byte is mapped into the processes address
166 panic("acc not implemented for MIPS FS!");
168 return context
->getProcessPtr()->pTable
->lookup(va
, entry
);
172 * Translate the kernel debugger register format into the GDB register
178 DPRINTF(GDBAcc
, "getregs in remotegdb \n");
179 memset(gdbregs
.regs
, 0, gdbregs
.bytes());
181 // MIPS registers are 32 bits wide, gdb registers are 64 bits wide
182 // two MIPS registers are packed into one gdb register (little endian)
185 for (int i
= 0; i
< GdbIntArchRegs
; i
++)
186 gdbregs
.regs32
[i
] = context
->readIntReg(i
);
187 // SR, LO, HI, BADVADDR, CAUSE, PC
188 gdbregs
.regs32
[GdbIntArchRegs
+ 0] =
189 context
->readMiscRegNoEffect(MISCREG_STATUS
);
190 gdbregs
.regs32
[GdbIntArchRegs
+ 1] = context
->readIntReg(INTREG_LO
);
191 gdbregs
.regs32
[GdbIntArchRegs
+ 2] = context
->readIntReg(INTREG_HI
);
192 gdbregs
.regs32
[GdbIntArchRegs
+ 3] =
193 context
->readMiscRegNoEffect(MISCREG_BADVADDR
);
194 gdbregs
.regs32
[GdbIntArchRegs
+ 4] =
195 context
->readMiscRegNoEffect(MISCREG_CAUSE
);
196 gdbregs
.regs32
[GdbIntArchRegs
+ 5] = context
->pcState().pc();
198 for (int i
= 0; i
< GdbFloatArchRegs
; i
++)
199 gdbregs
.regs32
[GdbIntRegs
+ i
] = context
->readFloatRegBits(i
);
201 gdbregs
.regs32
[GdbIntRegs
+ GdbFloatArchRegs
+ 0] =
202 context
->readFloatRegBits(FLOATREG_FCCR
);
203 gdbregs
.regs32
[GdbIntRegs
+ GdbFloatArchRegs
+ 1] =
204 context
->readFloatRegBits(FLOATREG_FIR
);
208 * Translate the GDB register format into the kernel debugger register
214 DPRINTF(GDBAcc
, "setregs in remotegdb \n");
217 for (int i
= 1; i
< GdbIntArchRegs
; i
++)
218 context
->setIntReg(i
, gdbregs
.regs32
[i
]);
219 // SR, LO, HI, BADVADDR, CAUSE, PC
220 context
->setMiscRegNoEffect(MISCREG_STATUS
,
221 gdbregs
.regs32
[GdbIntArchRegs
+ 0]);
222 context
->setIntReg(INTREG_LO
, gdbregs
.regs32
[GdbIntArchRegs
+ 1]);
223 context
->setIntReg(INTREG_HI
, gdbregs
.regs32
[GdbIntArchRegs
+ 2]);
224 context
->setMiscRegNoEffect(MISCREG_BADVADDR
,
225 gdbregs
.regs32
[GdbIntArchRegs
+ 3]);
226 context
->setMiscRegNoEffect(MISCREG_CAUSE
,
227 gdbregs
.regs32
[GdbIntArchRegs
+ 4]);
228 context
->pcState(gdbregs
.regs32
[GdbIntArchRegs
+ 5]);
230 for (int i
= 0; i
< GdbFloatArchRegs
; i
++)
231 context
->setFloatRegBits(i
, gdbregs
.regs32
[GdbIntRegs
+ i
]);
233 context
->setFloatRegBits(FLOATREG_FCCR
,
234 gdbregs
.regs32
[GdbIntRegs
+ GdbFloatArchRegs
+ 0]);
235 context
->setFloatRegBits(FLOATREG_FIR
,
236 gdbregs
.regs32
[GdbIntRegs
+ GdbFloatArchRegs
+ 1]);