nativetrace.hh revision 5038:c996bb7f1a6d 
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
41class ThreadContext;
42
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        : InstRecord(_when, _thread, _staticInst, _pc, spec), parent(_parent)
58    {
59    }
60
61    void dump();
62};
63
64class NativeTrace : public InstTracer
65{
66  protected:
67    int fd;
68
69    ListenSocket native_listener;
70
71    bool checkRcx;
72    bool checkR11;
73    uint64_t oldRcxVal, oldR11Val;
74    uint64_t oldRealRcxVal, oldRealR11Val;
75
76    struct ThreadState {
77        uint64_t rax;
78        uint64_t rcx;
79        uint64_t rdx;
80        uint64_t rbx;
81        uint64_t rsp;
82        uint64_t rbp;
83        uint64_t rsi;
84        uint64_t rdi;
85        uint64_t r8;
86        uint64_t r9;
87        uint64_t r10;
88        uint64_t r11;
89        uint64_t r12;
90        uint64_t r13;
91        uint64_t r14;
92        uint64_t r15;
93        uint64_t rip;
94
95        void update(int fd)
96        {
97            int bytesLeft = sizeof(ThreadState);
98            int bytesRead = 0;
99            do
100            {
101                int res = read(fd, ((char *)this) + bytesRead, bytesLeft);
102                if(res < 0)
103                    panic("Read call failed! %s\n", strerror(errno));
104                bytesLeft -= res;
105                bytesRead += res;
106            } while(bytesLeft);
107            rax = TheISA::gtoh(rax);
108            rcx = TheISA::gtoh(rcx);
109            rdx = TheISA::gtoh(rdx);
110            rbx = TheISA::gtoh(rbx);
111            rsp = TheISA::gtoh(rsp);
112            rbp = TheISA::gtoh(rbp);
113            rsi = TheISA::gtoh(rsi);
114            rdi = TheISA::gtoh(rdi);
115            r8 = TheISA::gtoh(r8);
116            r9 = TheISA::gtoh(r9);
117            r10 = TheISA::gtoh(r10);
118            r11 = TheISA::gtoh(r11);
119            r12 = TheISA::gtoh(r12);
120            r13 = TheISA::gtoh(r13);
121            r14 = TheISA::gtoh(r14);
122            r15 = TheISA::gtoh(r15);
123            rip = TheISA::gtoh(rip);
124        }
125
126        void update(ThreadContext * tc)
127        {
128            rax = tc->readIntReg(X86ISA::INTREG_RAX);
129            rcx = tc->readIntReg(X86ISA::INTREG_RCX);
130            rdx = tc->readIntReg(X86ISA::INTREG_RDX);
131            rbx = tc->readIntReg(X86ISA::INTREG_RBX);
132            rsp = tc->readIntReg(X86ISA::INTREG_RSP);
133            rbp = tc->readIntReg(X86ISA::INTREG_RBP);
134            rsi = tc->readIntReg(X86ISA::INTREG_RSI);
135            rdi = tc->readIntReg(X86ISA::INTREG_RDI);
136            r8 = tc->readIntReg(X86ISA::INTREG_R8);
137            r9 = tc->readIntReg(X86ISA::INTREG_R9);
138            r10 = tc->readIntReg(X86ISA::INTREG_R10);
139            r11 = tc->readIntReg(X86ISA::INTREG_R11);
140            r12 = tc->readIntReg(X86ISA::INTREG_R12);
141            r13 = tc->readIntReg(X86ISA::INTREG_R13);
142            r14 = tc->readIntReg(X86ISA::INTREG_R14);
143            r15 = tc->readIntReg(X86ISA::INTREG_R15);
144            rip = tc->readNextPC();
145        }
146
147    };
148
149    ThreadState nState;
150    ThreadState mState;
151
152
153  public:
154
155    template<class T>
156    bool
157    checkReg(const char * regName, T &val, T &realVal)
158    {
159        if(val != realVal)
160        {
161            DPRINTFN("Register %s should be %#x but is %#x.\n",
162                    regName, realVal, val);
163            return false;
164        }
165        return true;
166    }
167
168    bool
169    checkRcxReg(const char * regName, uint64_t &, uint64_t &);
170
171    bool
172    checkR11Reg(const char * regName, uint64_t &, uint64_t &);
173
174    NativeTrace(const Params *p);
175
176    NativeTraceRecord *
177    getInstRecord(Tick when, ThreadContext *tc,
178            const StaticInstPtr staticInst, Addr pc)
179    {
180        if (tc->misspeculating())
181            return NULL;
182
183        return new NativeTraceRecord(this, when, tc,
184                staticInst, pc, tc->misspeculating());
185    }
186
187    void
188    check(ThreadContext *, bool syscall);
189
190    friend class NativeTraceRecord;
191};
192
193/* namespace Trace */ }
194
195#endif // __EXETRACE_HH__
196