1/*
2 * Copyright (c) 2006 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: Gabe Black
29 */
30
31#ifndef __ARCH_ARM_NATIVETRACE_HH__
32#define __ARCH_ARM_NATIVETRACE_HH__
33
34#include "base/types.hh"
35#include "cpu/nativetrace.hh"
36#include "params/ArmNativeTrace.hh"
37
38namespace Trace {
39
40class ArmNativeTrace : public NativeTrace
41{
42  public:
43    enum StateID {
44        STATE_R0,
45        STATE_R1,
46        STATE_R2,
47        STATE_R3,
48        STATE_R4,
49        STATE_R5,
50        STATE_R6,
51        STATE_R7,
52        STATE_R8,
53        STATE_R9,
54        STATE_R10,
55        STATE_R11,
56        STATE_FP = STATE_R11,
57        STATE_R12,
58        STATE_R13,
59        STATE_SP = STATE_R13,
60        STATE_R14,
61        STATE_LR = STATE_R14,
62        STATE_R15,
63        STATE_PC = STATE_R15,
64        STATE_CPSR,
65        STATE_F0, STATE_F1, STATE_F2, STATE_F3, STATE_F4, STATE_F5, STATE_F6,
66        STATE_F7, STATE_F8, STATE_F9, STATE_F10, STATE_F11, STATE_F12,
67        STATE_F13, STATE_F14, STATE_F15, STATE_F16, STATE_F17, STATE_F18,
68        STATE_F19, STATE_F20, STATE_F21, STATE_F22, STATE_F23, STATE_F24,
69        STATE_F25, STATE_F26, STATE_F27, STATE_F28, STATE_F29, STATE_F30,
70        STATE_F31, STATE_FPSCR,
71        STATE_NUMVALS
72    };
73
74  protected:
75    struct ThreadState {
76        bool changed[STATE_NUMVALS];
77        uint64_t state[2][STATE_NUMVALS];
78        uint64_t *newState;
79        uint64_t *oldState;
80        int current;
81        void update(NativeTrace *parent);
82        void update(ThreadContext *tc);
83
84        ThreadState()
85        {
86            for (int i = 0; i < STATE_NUMVALS; i++) {
87                changed[i] = false;
88                state[0][i] = state[1][i] = 0;
89                current = 0;
90                newState = state[0];
91                oldState = state[1];
92            }
93        }
94    };
95
96    ThreadState nState, mState;
97
98    bool stopOnPCError;
99
100  public:
101    typedef ArmNativeTraceParams Params;
102
103    const Params *
104    params() const
105    {
106        return dynamic_cast<const Params *>(_params);
107    }
108
109    ArmNativeTrace(const Params *p) :
110        NativeTrace(p), stopOnPCError(p->stop_on_pc_error)
111    {}
112
113    void check(NativeTraceRecord *record);
114};
115
116} // namespace Trace
117
118#endif // __ARCH_ARM_NATIVETRACE_HH__
119