nativetrace.hh revision 5784:8a28646c4bc2 
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               const StaticInstPtr _macroStaticInst = NULL, MicroPC _upc = 0)
59        : InstRecord(_when, _thread, _staticInst, _pc, spec,
60                _macroStaticInst, _upc),
61        parent(_parent)
62    {
63    }
64
65    void dump();
66};
67
68class NativeTrace : public InstTracer
69{
70  protected:
71    int fd;
72
73    ListenSocket native_listener;
74
75    bool checkRcx;
76    bool checkR11;
77    uint64_t oldRcxVal, oldR11Val;
78    uint64_t oldRealRcxVal, oldRealR11Val;
79
80    struct ThreadState {
81        uint64_t rax;
82        uint64_t rcx;
83        uint64_t rdx;
84        uint64_t rbx;
85        uint64_t rsp;
86        uint64_t rbp;
87        uint64_t rsi;
88        uint64_t rdi;
89        uint64_t r8;
90        uint64_t r9;
91        uint64_t r10;
92        uint64_t r11;
93        uint64_t r12;
94        uint64_t r13;
95        uint64_t r14;
96        uint64_t r15;
97        uint64_t rip;
98        //This should be expanded to 16 if x87 registers are considered
99        uint64_t mmx[8];
100        uint64_t xmm[32];
101
102        void update(int fd)
103        {
104            int bytesLeft = sizeof(ThreadState);
105            int bytesRead = 0;
106            do
107            {
108                int res = read(fd, ((char *)this) + bytesRead, bytesLeft);
109                if(res < 0)
110                    panic("Read call failed! %s\n", strerror(errno));
111                bytesLeft -= res;
112                bytesRead += res;
113            } while(bytesLeft);
114            rax = TheISA::gtoh(rax);
115            rcx = TheISA::gtoh(rcx);
116            rdx = TheISA::gtoh(rdx);
117            rbx = TheISA::gtoh(rbx);
118            rsp = TheISA::gtoh(rsp);
119            rbp = TheISA::gtoh(rbp);
120            rsi = TheISA::gtoh(rsi);
121            rdi = TheISA::gtoh(rdi);
122            r8 = TheISA::gtoh(r8);
123            r9 = TheISA::gtoh(r9);
124            r10 = TheISA::gtoh(r10);
125            r11 = TheISA::gtoh(r11);
126            r12 = TheISA::gtoh(r12);
127            r13 = TheISA::gtoh(r13);
128            r14 = TheISA::gtoh(r14);
129            r15 = TheISA::gtoh(r15);
130            rip = TheISA::gtoh(rip);
131            //This should be expanded if x87 registers are considered
132            for (int i = 0; i < 8; i++)
133                mmx[i] = TheISA::gtoh(mmx[i]);
134            for (int i = 0; i < 32; i++)
135                xmm[i] = TheISA::gtoh(xmm[i]);
136        }
137
138        void update(ThreadContext * tc)
139        {
140            rax = tc->readIntReg(X86ISA::INTREG_RAX);
141            rcx = tc->readIntReg(X86ISA::INTREG_RCX);
142            rdx = tc->readIntReg(X86ISA::INTREG_RDX);
143            rbx = tc->readIntReg(X86ISA::INTREG_RBX);
144            rsp = tc->readIntReg(X86ISA::INTREG_RSP);
145            rbp = tc->readIntReg(X86ISA::INTREG_RBP);
146            rsi = tc->readIntReg(X86ISA::INTREG_RSI);
147            rdi = tc->readIntReg(X86ISA::INTREG_RDI);
148            r8 = tc->readIntReg(X86ISA::INTREG_R8);
149            r9 = tc->readIntReg(X86ISA::INTREG_R9);
150            r10 = tc->readIntReg(X86ISA::INTREG_R10);
151            r11 = tc->readIntReg(X86ISA::INTREG_R11);
152            r12 = tc->readIntReg(X86ISA::INTREG_R12);
153            r13 = tc->readIntReg(X86ISA::INTREG_R13);
154            r14 = tc->readIntReg(X86ISA::INTREG_R14);
155            r15 = tc->readIntReg(X86ISA::INTREG_R15);
156            rip = tc->readNextPC();
157            //This should be expanded if x87 registers are considered
158            for (int i = 0; i < 8; i++)
159                mmx[i] = tc->readFloatRegBits(X86ISA::FLOATREG_MMX(i));
160            for (int i = 0; i < 32; i++)
161                xmm[i] = tc->readFloatRegBits(X86ISA::FLOATREG_XMM_BASE + i);
162        }
163
164    };
165
166    ThreadState nState;
167    ThreadState mState;
168
169
170  public:
171
172    template<class T>
173    bool
174    checkReg(const char * regName, T &val, T &realVal)
175    {
176        if(val != realVal)
177        {
178            DPRINTFN("Register %s should be %#x but is %#x.\n",
179                    regName, realVal, val);
180            return false;
181        }
182        return true;
183    }
184
185    bool
186    checkRcxReg(const char * regName, uint64_t &, uint64_t &);
187
188    bool
189    checkR11Reg(const char * regName, uint64_t &, uint64_t &);
190
191    bool
192    checkXMM(int num, uint64_t mXmmBuf[], uint64_t nXmmBuf[]);
193
194    NativeTrace(const Params *p);
195
196    NativeTraceRecord *
197    getInstRecord(Tick when, ThreadContext *tc,
198            const StaticInstPtr staticInst, Addr pc,
199            const StaticInstPtr macroStaticInst = NULL, MicroPC upc = 0)
200    {
201        if (tc->misspeculating())
202            return NULL;
203
204        return new NativeTraceRecord(this, when, tc,
205                staticInst, pc, tc->misspeculating(), macroStaticInst, upc);
206    }
207
208    void
209    check(ThreadContext *, bool syscall);
210
211    friend class NativeTraceRecord;
212};
213
214/* namespace Trace */ }
215
216#endif // __EXETRACE_HH__
217