nativetrace.hh revision 6216 
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 __CPU_NATIVETRACE_HH__
33#define __CPU_NATIVETRACE_HH__
34
35#include "arch/x86/floatregs.hh"
36#include "arch/x86/intregs.hh"
37#include "base/trace.hh"
38#include "base/types.hh"
39#include "cpu/static_inst.hh"
40#include "sim/insttracer.hh"
41
42class ThreadContext;
43
44namespace Trace {
45
46class NativeTrace;
47
48class NativeTraceRecord : public InstRecord
49{
50  protected:
51    NativeTrace * parent;
52
53  public:
54    NativeTraceRecord(NativeTrace * _parent,
55               Tick _when, ThreadContext *_thread,
56               const StaticInstPtr _staticInst, Addr _pc, bool spec,
57               const StaticInstPtr _macroStaticInst = NULL, MicroPC _upc = 0)
58        : InstRecord(_when, _thread, _staticInst, _pc, spec,
59                _macroStaticInst, _upc),
60        parent(_parent)
61    {
62    }
63
64    void dump();
65};
66
67class NativeTrace : public InstTracer
68{
69  protected:
70    int fd;
71
72    ListenSocket native_listener;
73
74    bool checkRcx;
75    bool checkR11;
76    uint64_t oldRcxVal, oldR11Val;
77    uint64_t oldRealRcxVal, oldRealR11Val;
78
79    struct ThreadState {
80        uint64_t rax;
81        uint64_t rcx;
82        uint64_t rdx;
83        uint64_t rbx;
84        uint64_t rsp;
85        uint64_t rbp;
86        uint64_t rsi;
87        uint64_t rdi;
88        uint64_t r8;
89        uint64_t r9;
90        uint64_t r10;
91        uint64_t r11;
92        uint64_t r12;
93        uint64_t r13;
94        uint64_t r14;
95        uint64_t r15;
96        uint64_t rip;
97        //This should be expanded to 16 if x87 registers are considered
98        uint64_t mmx[8];
99        uint64_t xmm[32];
100
101        void update(int fd)
102        {
103            int bytesLeft = sizeof(ThreadState);
104            int bytesRead = 0;
105            do
106            {
107                int res = read(fd, ((char *)this) + bytesRead, bytesLeft);
108                if(res < 0)
109                    panic("Read call failed! %s\n", strerror(errno));
110                bytesLeft -= res;
111                bytesRead += res;
112            } while(bytesLeft);
113            rax = TheISA::gtoh(rax);
114            rcx = TheISA::gtoh(rcx);
115            rdx = TheISA::gtoh(rdx);
116            rbx = TheISA::gtoh(rbx);
117            rsp = TheISA::gtoh(rsp);
118            rbp = TheISA::gtoh(rbp);
119            rsi = TheISA::gtoh(rsi);
120            rdi = TheISA::gtoh(rdi);
121            r8 = TheISA::gtoh(r8);
122            r9 = TheISA::gtoh(r9);
123            r10 = TheISA::gtoh(r10);
124            r11 = TheISA::gtoh(r11);
125            r12 = TheISA::gtoh(r12);
126            r13 = TheISA::gtoh(r13);
127            r14 = TheISA::gtoh(r14);
128            r15 = TheISA::gtoh(r15);
129            rip = TheISA::gtoh(rip);
130            //This should be expanded if x87 registers are considered
131            for (int i = 0; i < 8; i++)
132                mmx[i] = TheISA::gtoh(mmx[i]);
133            for (int i = 0; i < 32; i++)
134                xmm[i] = TheISA::gtoh(xmm[i]);
135        }
136
137        void update(ThreadContext * tc)
138        {
139            rax = tc->readIntReg(X86ISA::INTREG_RAX);
140            rcx = tc->readIntReg(X86ISA::INTREG_RCX);
141            rdx = tc->readIntReg(X86ISA::INTREG_RDX);
142            rbx = tc->readIntReg(X86ISA::INTREG_RBX);
143            rsp = tc->readIntReg(X86ISA::INTREG_RSP);
144            rbp = tc->readIntReg(X86ISA::INTREG_RBP);
145            rsi = tc->readIntReg(X86ISA::INTREG_RSI);
146            rdi = tc->readIntReg(X86ISA::INTREG_RDI);
147            r8 = tc->readIntReg(X86ISA::INTREG_R8);
148            r9 = tc->readIntReg(X86ISA::INTREG_R9);
149            r10 = tc->readIntReg(X86ISA::INTREG_R10);
150            r11 = tc->readIntReg(X86ISA::INTREG_R11);
151            r12 = tc->readIntReg(X86ISA::INTREG_R12);
152            r13 = tc->readIntReg(X86ISA::INTREG_R13);
153            r14 = tc->readIntReg(X86ISA::INTREG_R14);
154            r15 = tc->readIntReg(X86ISA::INTREG_R15);
155            rip = tc->readNextPC();
156            //This should be expanded if x87 registers are considered
157            for (int i = 0; i < 8; i++)
158                mmx[i] = tc->readFloatRegBits(X86ISA::FLOATREG_MMX(i));
159            for (int i = 0; i < 32; i++)
160                xmm[i] = tc->readFloatRegBits(X86ISA::FLOATREG_XMM_BASE + i);
161        }
162
163    };
164
165    ThreadState nState;
166    ThreadState mState;
167
168
169  public:
170
171    template<class T>
172    bool
173    checkReg(const char * regName, T &val, T &realVal)
174    {
175        if(val != realVal)
176        {
177            DPRINTFN("Register %s should be %#x but is %#x.\n",
178                    regName, realVal, val);
179            return false;
180        }
181        return true;
182    }
183
184    bool
185    checkRcxReg(const char * regName, uint64_t &, uint64_t &);
186
187    bool
188    checkR11Reg(const char * regName, uint64_t &, uint64_t &);
189
190    bool
191    checkXMM(int num, uint64_t mXmmBuf[], uint64_t nXmmBuf[]);
192
193    NativeTrace(const Params *p);
194
195    NativeTraceRecord *
196    getInstRecord(Tick when, ThreadContext *tc,
197            const StaticInstPtr staticInst, Addr pc,
198            const StaticInstPtr macroStaticInst = NULL, MicroPC upc = 0)
199    {
200        if (tc->misspeculating())
201            return NULL;
202
203        return new NativeTraceRecord(this, when, tc,
204                staticInst, pc, tc->misspeculating(), macroStaticInst, upc);
205    }
206
207    void
208    check(ThreadContext *, bool syscall);
209
210    friend class NativeTraceRecord;
211};
212
213/* namespace Trace */ }
214
215#endif // __CPU_NATIVETRACE_HH__
216