1/*
2 * Copyright 2015 LabWare
3 * Copyright 2014 Google, Inc.
4 * Copyright (c) 2007 The Hewlett-Packard Development Company
5 * All rights reserved.
6 *
7 * The license below extends only to copyright in the software and shall
8 * not be construed as granting a license to any other intellectual
9 * property including but not limited to intellectual property relating
10 * to a hardware implementation of the functionality of the software
11 * licensed hereunder. You may use the software subject to the license
12 * terms below provided that you ensure that this notice is replicated
13 * unmodified and in its entirety in all distributions of the software,
14 * modified or unmodified, in source code or in binary form.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions are
18 * met: redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer;
20 * redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution;
23 * neither the name of the copyright holders nor the names of its
24 * contributors may be used to endorse or promote products derived from
25 * this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
34 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
35 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
36 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 *
39 * Authors: Gabe Black
40 * Boris Shingarov
41 */
42
43#include "arch/x86/remote_gdb.hh"
44
45#include <sys/signal.h>
46#include <unistd.h>
47
48#include <string>
49
50#include "arch/vtophys.hh"
51#include "arch/x86/pagetable_walker.hh"
52#include "arch/x86/process.hh"
53#include "arch/x86/regs/int.hh"
54#include "arch/x86/regs/misc.hh"
55#include "base/remote_gdb.hh"
56#include "base/socket.hh"
57#include "base/trace.hh"
58#include "cpu/base.hh"
59#include "cpu/thread_context.hh"
60#include "debug/GDBAcc.hh"
61#include "mem/page_table.hh"
62#include "sim/full_system.hh"
63
64using namespace std;
65using namespace X86ISA;
66
67RemoteGDB::RemoteGDB(System *_system, ThreadContext *c) :
68 BaseRemoteGDB(_system, c), regCache32(this), regCache64(this)
69{}
70
71bool
72RemoteGDB::acc(Addr va, size_t len)
73{
74 if (FullSystem) {
| 1/*
2 * Copyright 2015 LabWare
3 * Copyright 2014 Google, Inc.
4 * Copyright (c) 2007 The Hewlett-Packard Development Company
5 * All rights reserved.
6 *
7 * The license below extends only to copyright in the software and shall
8 * not be construed as granting a license to any other intellectual
9 * property including but not limited to intellectual property relating
10 * to a hardware implementation of the functionality of the software
11 * licensed hereunder. You may use the software subject to the license
12 * terms below provided that you ensure that this notice is replicated
13 * unmodified and in its entirety in all distributions of the software,
14 * modified or unmodified, in source code or in binary form.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions are
18 * met: redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer;
20 * redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution;
23 * neither the name of the copyright holders nor the names of its
24 * contributors may be used to endorse or promote products derived from
25 * this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
34 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
35 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
36 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 *
39 * Authors: Gabe Black
40 * Boris Shingarov
41 */
42
43#include "arch/x86/remote_gdb.hh"
44
45#include <sys/signal.h>
46#include <unistd.h>
47
48#include <string>
49
50#include "arch/vtophys.hh"
51#include "arch/x86/pagetable_walker.hh"
52#include "arch/x86/process.hh"
53#include "arch/x86/regs/int.hh"
54#include "arch/x86/regs/misc.hh"
55#include "base/remote_gdb.hh"
56#include "base/socket.hh"
57#include "base/trace.hh"
58#include "cpu/base.hh"
59#include "cpu/thread_context.hh"
60#include "debug/GDBAcc.hh"
61#include "mem/page_table.hh"
62#include "sim/full_system.hh"
63
64using namespace std;
65using namespace X86ISA;
66
67RemoteGDB::RemoteGDB(System *_system, ThreadContext *c) :
68 BaseRemoteGDB(_system, c), regCache32(this), regCache64(this)
69{}
70
71bool
72RemoteGDB::acc(Addr va, size_t len)
73{
74 if (FullSystem) {
|
76 unsigned logBytes;
77 Fault fault = walker->startFunctional(context, va, logBytes,
78 BaseTLB::Read);
79 if (fault != NoFault)
80 return false;
81
82 Addr endVa = va + len - 1;
83 if ((va & ~mask(logBytes)) == (endVa & ~mask(logBytes)))
84 return true;
85
86 fault = walker->startFunctional(context, endVa, logBytes,
87 BaseTLB::Read);
88 return fault == NoFault;
89 } else {
90 TlbEntry entry;
91 return context->getProcessPtr()->pTable->lookup(va, entry);
92 }
93}
94
95RemoteGDB::BaseGdbRegCache*
96RemoteGDB::gdbRegs()
97{
98 HandyM5Reg m5reg = context->readMiscRegNoEffect(MISCREG_M5_REG);
99 if (m5reg.submode == SixtyFourBitMode)
100 return ®Cache64;
101 else
102 return ®Cache32;
103}
104
105
106
107void
108RemoteGDB::AMD64GdbRegCache::getRegs(ThreadContext *context)
109{
110 DPRINTF(GDBAcc, "getRegs in remotegdb \n");
111 r.rax = context->readIntReg(INTREG_RAX);
112 r.rbx = context->readIntReg(INTREG_RBX);
113 r.rcx = context->readIntReg(INTREG_RCX);
114 r.rdx = context->readIntReg(INTREG_RDX);
115 r.rsi = context->readIntReg(INTREG_RSI);
116 r.rdi = context->readIntReg(INTREG_RDI);
117 r.rbp = context->readIntReg(INTREG_RBP);
118 r.rsp = context->readIntReg(INTREG_RSP);
119 r.r8 = context->readIntReg(INTREG_R8);
120 r.r9 = context->readIntReg(INTREG_R9);
121 r.r10 = context->readIntReg(INTREG_R10);
122 r.r11 = context->readIntReg(INTREG_R11);
123 r.r12 = context->readIntReg(INTREG_R12);
124 r.r13 = context->readIntReg(INTREG_R13);
125 r.r14 = context->readIntReg(INTREG_R14);
126 r.r15 = context->readIntReg(INTREG_R15);
127 r.rip = context->pcState().pc();
128 r.eflags = context->readMiscRegNoEffect(MISCREG_RFLAGS);
129 r.cs = context->readMiscRegNoEffect(MISCREG_CS);
130 r.ss = context->readMiscRegNoEffect(MISCREG_SS);
131 r.ds = context->readMiscRegNoEffect(MISCREG_DS);
132 r.es = context->readMiscRegNoEffect(MISCREG_ES);
133 r.fs = context->readMiscRegNoEffect(MISCREG_FS);
134 r.gs = context->readMiscRegNoEffect(MISCREG_GS);
135}
136
137void
138RemoteGDB::X86GdbRegCache::getRegs(ThreadContext *context)
139{
140 DPRINTF(GDBAcc, "getRegs in remotegdb \n");
141 r.eax = context->readIntReg(INTREG_RAX);
142 r.ecx = context->readIntReg(INTREG_RCX);
143 r.edx = context->readIntReg(INTREG_RDX);
144 r.ebx = context->readIntReg(INTREG_RBX);
145 r.esp = context->readIntReg(INTREG_RSP);
146 r.ebp = context->readIntReg(INTREG_RBP);
147 r.esi = context->readIntReg(INTREG_RSI);
148 r.edi = context->readIntReg(INTREG_RDI);
149 r.eip = context->pcState().pc();
150 r.eflags = context->readMiscRegNoEffect(MISCREG_RFLAGS);
151 r.cs = context->readMiscRegNoEffect(MISCREG_CS);
152 r.ss = context->readMiscRegNoEffect(MISCREG_SS);
153 r.ds = context->readMiscRegNoEffect(MISCREG_DS);
154 r.es = context->readMiscRegNoEffect(MISCREG_ES);
155 r.fs = context->readMiscRegNoEffect(MISCREG_FS);
156 r.gs = context->readMiscRegNoEffect(MISCREG_GS);
157}
158
159void
160RemoteGDB::AMD64GdbRegCache::setRegs(ThreadContext *context) const
161{
162 DPRINTF(GDBAcc, "setRegs in remotegdb \n");
163 context->setIntReg(INTREG_RAX, r.rax);
164 context->setIntReg(INTREG_RBX, r.rbx);
165 context->setIntReg(INTREG_RCX, r.rcx);
166 context->setIntReg(INTREG_RDX, r.rdx);
167 context->setIntReg(INTREG_RSI, r.rsi);
168 context->setIntReg(INTREG_RDI, r.rdi);
169 context->setIntReg(INTREG_RBP, r.rbp);
170 context->setIntReg(INTREG_RSP, r.rsp);
171 context->setIntReg(INTREG_R8, r.r8);
172 context->setIntReg(INTREG_R9, r.r9);
173 context->setIntReg(INTREG_R10, r.r10);
174 context->setIntReg(INTREG_R11, r.r11);
175 context->setIntReg(INTREG_R12, r.r12);
176 context->setIntReg(INTREG_R13, r.r13);
177 context->setIntReg(INTREG_R14, r.r14);
178 context->setIntReg(INTREG_R15, r.r15);
179 context->pcState(r.rip);
180 context->setMiscReg(MISCREG_RFLAGS, r.eflags);
181 if (r.cs != context->readMiscRegNoEffect(MISCREG_CS))
182 warn("Remote gdb: Ignoring update to CS.\n");
183 if (r.ss != context->readMiscRegNoEffect(MISCREG_SS))
184 warn("Remote gdb: Ignoring update to SS.\n");
185 if (r.ds != context->readMiscRegNoEffect(MISCREG_DS))
186 warn("Remote gdb: Ignoring update to DS.\n");
187 if (r.es != context->readMiscRegNoEffect(MISCREG_ES))
188 warn("Remote gdb: Ignoring update to ES.\n");
189 if (r.fs != context->readMiscRegNoEffect(MISCREG_FS))
190 warn("Remote gdb: Ignoring update to FS.\n");
191 if (r.gs != context->readMiscRegNoEffect(MISCREG_GS))
192 warn("Remote gdb: Ignoring update to GS.\n");
193}
194
195void
196RemoteGDB::X86GdbRegCache::setRegs(ThreadContext *context) const
197{
198 DPRINTF(GDBAcc, "setRegs in remotegdb \n");
199 context->setIntReg(INTREG_RAX, r.eax);
200 context->setIntReg(INTREG_RCX, r.ecx);
201 context->setIntReg(INTREG_RDX, r.edx);
202 context->setIntReg(INTREG_RBX, r.ebx);
203 context->setIntReg(INTREG_RSP, r.esp);
204 context->setIntReg(INTREG_RBP, r.ebp);
205 context->setIntReg(INTREG_RSI, r.esi);
206 context->setIntReg(INTREG_RDI, r.edi);
207 context->pcState(r.eip);
208 context->setMiscReg(MISCREG_RFLAGS, r.eflags);
209 if (r.cs != context->readMiscRegNoEffect(MISCREG_CS))
210 warn("Remote gdb: Ignoring update to CS.\n");
211 if (r.ss != context->readMiscRegNoEffect(MISCREG_SS))
212 warn("Remote gdb: Ignoring update to SS.\n");
213 if (r.ds != context->readMiscRegNoEffect(MISCREG_DS))
214 warn("Remote gdb: Ignoring update to DS.\n");
215 if (r.es != context->readMiscRegNoEffect(MISCREG_ES))
216 warn("Remote gdb: Ignoring update to ES.\n");
217 if (r.fs != context->readMiscRegNoEffect(MISCREG_FS))
218 warn("Remote gdb: Ignoring update to FS.\n");
219 if (r.gs != context->readMiscRegNoEffect(MISCREG_GS))
220 warn("Remote gdb: Ignoring update to GS.\n");
221}
| 77 unsigned logBytes;
78 Fault fault = walker->startFunctional(context, va, logBytes,
79 BaseTLB::Read);
80 if (fault != NoFault)
81 return false;
82
83 Addr endVa = va + len - 1;
84 if ((va & ~mask(logBytes)) == (endVa & ~mask(logBytes)))
85 return true;
86
87 fault = walker->startFunctional(context, endVa, logBytes,
88 BaseTLB::Read);
89 return fault == NoFault;
90 } else {
91 TlbEntry entry;
92 return context->getProcessPtr()->pTable->lookup(va, entry);
93 }
94}
95
96RemoteGDB::BaseGdbRegCache*
97RemoteGDB::gdbRegs()
98{
99 HandyM5Reg m5reg = context->readMiscRegNoEffect(MISCREG_M5_REG);
100 if (m5reg.submode == SixtyFourBitMode)
101 return ®Cache64;
102 else
103 return ®Cache32;
104}
105
106
107
108void
109RemoteGDB::AMD64GdbRegCache::getRegs(ThreadContext *context)
110{
111 DPRINTF(GDBAcc, "getRegs in remotegdb \n");
112 r.rax = context->readIntReg(INTREG_RAX);
113 r.rbx = context->readIntReg(INTREG_RBX);
114 r.rcx = context->readIntReg(INTREG_RCX);
115 r.rdx = context->readIntReg(INTREG_RDX);
116 r.rsi = context->readIntReg(INTREG_RSI);
117 r.rdi = context->readIntReg(INTREG_RDI);
118 r.rbp = context->readIntReg(INTREG_RBP);
119 r.rsp = context->readIntReg(INTREG_RSP);
120 r.r8 = context->readIntReg(INTREG_R8);
121 r.r9 = context->readIntReg(INTREG_R9);
122 r.r10 = context->readIntReg(INTREG_R10);
123 r.r11 = context->readIntReg(INTREG_R11);
124 r.r12 = context->readIntReg(INTREG_R12);
125 r.r13 = context->readIntReg(INTREG_R13);
126 r.r14 = context->readIntReg(INTREG_R14);
127 r.r15 = context->readIntReg(INTREG_R15);
128 r.rip = context->pcState().pc();
129 r.eflags = context->readMiscRegNoEffect(MISCREG_RFLAGS);
130 r.cs = context->readMiscRegNoEffect(MISCREG_CS);
131 r.ss = context->readMiscRegNoEffect(MISCREG_SS);
132 r.ds = context->readMiscRegNoEffect(MISCREG_DS);
133 r.es = context->readMiscRegNoEffect(MISCREG_ES);
134 r.fs = context->readMiscRegNoEffect(MISCREG_FS);
135 r.gs = context->readMiscRegNoEffect(MISCREG_GS);
136}
137
138void
139RemoteGDB::X86GdbRegCache::getRegs(ThreadContext *context)
140{
141 DPRINTF(GDBAcc, "getRegs in remotegdb \n");
142 r.eax = context->readIntReg(INTREG_RAX);
143 r.ecx = context->readIntReg(INTREG_RCX);
144 r.edx = context->readIntReg(INTREG_RDX);
145 r.ebx = context->readIntReg(INTREG_RBX);
146 r.esp = context->readIntReg(INTREG_RSP);
147 r.ebp = context->readIntReg(INTREG_RBP);
148 r.esi = context->readIntReg(INTREG_RSI);
149 r.edi = context->readIntReg(INTREG_RDI);
150 r.eip = context->pcState().pc();
151 r.eflags = context->readMiscRegNoEffect(MISCREG_RFLAGS);
152 r.cs = context->readMiscRegNoEffect(MISCREG_CS);
153 r.ss = context->readMiscRegNoEffect(MISCREG_SS);
154 r.ds = context->readMiscRegNoEffect(MISCREG_DS);
155 r.es = context->readMiscRegNoEffect(MISCREG_ES);
156 r.fs = context->readMiscRegNoEffect(MISCREG_FS);
157 r.gs = context->readMiscRegNoEffect(MISCREG_GS);
158}
159
160void
161RemoteGDB::AMD64GdbRegCache::setRegs(ThreadContext *context) const
162{
163 DPRINTF(GDBAcc, "setRegs in remotegdb \n");
164 context->setIntReg(INTREG_RAX, r.rax);
165 context->setIntReg(INTREG_RBX, r.rbx);
166 context->setIntReg(INTREG_RCX, r.rcx);
167 context->setIntReg(INTREG_RDX, r.rdx);
168 context->setIntReg(INTREG_RSI, r.rsi);
169 context->setIntReg(INTREG_RDI, r.rdi);
170 context->setIntReg(INTREG_RBP, r.rbp);
171 context->setIntReg(INTREG_RSP, r.rsp);
172 context->setIntReg(INTREG_R8, r.r8);
173 context->setIntReg(INTREG_R9, r.r9);
174 context->setIntReg(INTREG_R10, r.r10);
175 context->setIntReg(INTREG_R11, r.r11);
176 context->setIntReg(INTREG_R12, r.r12);
177 context->setIntReg(INTREG_R13, r.r13);
178 context->setIntReg(INTREG_R14, r.r14);
179 context->setIntReg(INTREG_R15, r.r15);
180 context->pcState(r.rip);
181 context->setMiscReg(MISCREG_RFLAGS, r.eflags);
182 if (r.cs != context->readMiscRegNoEffect(MISCREG_CS))
183 warn("Remote gdb: Ignoring update to CS.\n");
184 if (r.ss != context->readMiscRegNoEffect(MISCREG_SS))
185 warn("Remote gdb: Ignoring update to SS.\n");
186 if (r.ds != context->readMiscRegNoEffect(MISCREG_DS))
187 warn("Remote gdb: Ignoring update to DS.\n");
188 if (r.es != context->readMiscRegNoEffect(MISCREG_ES))
189 warn("Remote gdb: Ignoring update to ES.\n");
190 if (r.fs != context->readMiscRegNoEffect(MISCREG_FS))
191 warn("Remote gdb: Ignoring update to FS.\n");
192 if (r.gs != context->readMiscRegNoEffect(MISCREG_GS))
193 warn("Remote gdb: Ignoring update to GS.\n");
194}
195
196void
197RemoteGDB::X86GdbRegCache::setRegs(ThreadContext *context) const
198{
199 DPRINTF(GDBAcc, "setRegs in remotegdb \n");
200 context->setIntReg(INTREG_RAX, r.eax);
201 context->setIntReg(INTREG_RCX, r.ecx);
202 context->setIntReg(INTREG_RDX, r.edx);
203 context->setIntReg(INTREG_RBX, r.ebx);
204 context->setIntReg(INTREG_RSP, r.esp);
205 context->setIntReg(INTREG_RBP, r.ebp);
206 context->setIntReg(INTREG_RSI, r.esi);
207 context->setIntReg(INTREG_RDI, r.edi);
208 context->pcState(r.eip);
209 context->setMiscReg(MISCREG_RFLAGS, r.eflags);
210 if (r.cs != context->readMiscRegNoEffect(MISCREG_CS))
211 warn("Remote gdb: Ignoring update to CS.\n");
212 if (r.ss != context->readMiscRegNoEffect(MISCREG_SS))
213 warn("Remote gdb: Ignoring update to SS.\n");
214 if (r.ds != context->readMiscRegNoEffect(MISCREG_DS))
215 warn("Remote gdb: Ignoring update to DS.\n");
216 if (r.es != context->readMiscRegNoEffect(MISCREG_ES))
217 warn("Remote gdb: Ignoring update to ES.\n");
218 if (r.fs != context->readMiscRegNoEffect(MISCREG_FS))
219 warn("Remote gdb: Ignoring update to FS.\n");
220 if (r.gs != context->readMiscRegNoEffect(MISCREG_GS))
221 warn("Remote gdb: Ignoring update to GS.\n");
222}
|