nativetrace.hh revision 5049:16a0724434b8 
1/*
2 * Copyright (c) 2001-2005 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: Steve Reinhardt
29 *          Nathan Binkert
30 */
31
32#ifndef __NATIVETRACE_HH__
33#define __NATIVETRACE_HH__
34
35#include "base/trace.hh"
36#include "cpu/static_inst.hh"
37#include "sim/host.hh"
38#include "sim/insttracer.hh"
39#include "arch/x86/intregs.hh"
40#include "arch/x86/floatregs.hh"
41
42class ThreadContext;
43
44
45namespace Trace {
46
47class NativeTrace;
48
49class NativeTraceRecord : public InstRecord
50{
51  protected:
52    NativeTrace * parent;
53
54  public:
55    NativeTraceRecord(NativeTrace * _parent,
56               Tick _when, ThreadContext *_thread,
57               const StaticInstPtr &_staticInst, Addr _pc, bool spec)
58        : InstRecord(_when, _thread, _staticInst, _pc, spec), parent(_parent)
59    {
60    }
61
62    void dump();
63};
64
65class NativeTrace : public InstTracer
66{
67  protected:
68    int fd;
69
70    ListenSocket native_listener;
71
72    bool checkRcx;
73    bool checkR11;
74    uint64_t oldRcxVal, oldR11Val;
75    uint64_t oldRealRcxVal, oldRealR11Val;
76
77    struct ThreadState {
78        uint64_t rax;
79        uint64_t rcx;
80        uint64_t rdx;
81        uint64_t rbx;
82        uint64_t rsp;
83        uint64_t rbp;
84        uint64_t rsi;
85        uint64_t rdi;
86        uint64_t r8;
87        uint64_t r9;
88        uint64_t r10;
89        uint64_t r11;
90        uint64_t r12;
91        uint64_t r13;
92        uint64_t r14;
93        uint64_t r15;
94        uint64_t rip;
95        //This should be expanded to 16 if x87 registers are considered
96        uint64_t mmx[8];
97        uint64_t xmm[32];
98
99        void update(int fd)
100        {
101            int bytesLeft = sizeof(ThreadState);
102            int bytesRead = 0;
103            do
104            {
105                int res = read(fd, ((char *)this) + bytesRead, bytesLeft);
106                if(res < 0)
107                    panic("Read call failed! %s\n", strerror(errno));
108                bytesLeft -= res;
109                bytesRead += res;
110            } while(bytesLeft);
111            rax = TheISA::gtoh(rax);
112            rcx = TheISA::gtoh(rcx);
113            rdx = TheISA::gtoh(rdx);
114            rbx = TheISA::gtoh(rbx);
115            rsp = TheISA::gtoh(rsp);
116            rbp = TheISA::gtoh(rbp);
117            rsi = TheISA::gtoh(rsi);
118            rdi = TheISA::gtoh(rdi);
119            r8 = TheISA::gtoh(r8);
120            r9 = TheISA::gtoh(r9);
121            r10 = TheISA::gtoh(r10);
122            r11 = TheISA::gtoh(r11);
123            r12 = TheISA::gtoh(r12);
124            r13 = TheISA::gtoh(r13);
125            r14 = TheISA::gtoh(r14);
126            r15 = TheISA::gtoh(r15);
127            rip = TheISA::gtoh(rip);
128            //This should be expanded if x87 registers are considered
129            for (int i = 0; i < 8; i++)
130                mmx[i] = TheISA::gtoh(mmx[i]);
131            for (int i = 0; i < 32; i++)
132                xmm[i] = TheISA::gtoh(xmm[i]);
133        }
134
135        void update(ThreadContext * tc)
136        {
137            rax = tc->readIntReg(X86ISA::INTREG_RAX);
138            rcx = tc->readIntReg(X86ISA::INTREG_RCX);
139            rdx = tc->readIntReg(X86ISA::INTREG_RDX);
140            rbx = tc->readIntReg(X86ISA::INTREG_RBX);
141            rsp = tc->readIntReg(X86ISA::INTREG_RSP);
142            rbp = tc->readIntReg(X86ISA::INTREG_RBP);
143            rsi = tc->readIntReg(X86ISA::INTREG_RSI);
144            rdi = tc->readIntReg(X86ISA::INTREG_RDI);
145            r8 = tc->readIntReg(X86ISA::INTREG_R8);
146            r9 = tc->readIntReg(X86ISA::INTREG_R9);
147            r10 = tc->readIntReg(X86ISA::INTREG_R10);
148            r11 = tc->readIntReg(X86ISA::INTREG_R11);
149            r12 = tc->readIntReg(X86ISA::INTREG_R12);
150            r13 = tc->readIntReg(X86ISA::INTREG_R13);
151            r14 = tc->readIntReg(X86ISA::INTREG_R14);
152            r15 = tc->readIntReg(X86ISA::INTREG_R15);
153            rip = tc->readNextPC();
154            //This should be expanded if x87 registers are considered
155            for (int i = 0; i < 8; i++)
156                mmx[i] = tc->readFloatRegBits(X86ISA::FLOATREG_MMX(i));
157            for (int i = 0; i < 32; i++)
158                xmm[i] = tc->readFloatRegBits(X86ISA::FLOATREG_XMM_BASE + i);
159        }
160
161    };
162
163    ThreadState nState;
164    ThreadState mState;
165
166
167  public:
168
169    template<class T>
170    bool
171    checkReg(const char * regName, T &val, T &realVal)
172    {
173        if(val != realVal)
174        {
175            DPRINTFN("Register %s should be %#x but is %#x.\n",
176                    regName, realVal, val);
177            return false;
178        }
179        return true;
180    }
181
182    bool
183    checkRcxReg(const char * regName, uint64_t &, uint64_t &);
184
185    bool
186    checkR11Reg(const char * regName, uint64_t &, uint64_t &);
187
188    bool
189    checkXMM(int num, uint64_t mXmmBuf[], uint64_t nXmmBuf[]);
190
191    NativeTrace(const Params *p);
192
193    NativeTraceRecord *
194    getInstRecord(Tick when, ThreadContext *tc,
195            const StaticInstPtr staticInst, Addr pc)
196    {
197        if (tc->misspeculating())
198            return NULL;
199
200        return new NativeTraceRecord(this, when, tc,
201                staticInst, pc, tc->misspeculating());
202    }
203
204    void
205    check(ThreadContext *, bool syscall);
206
207    friend class NativeTraceRecord;
208};
209
210/* namespace Trace */ }
211
212#endif // __EXETRACE_HH__
213