src/arch/arm/nativetrace.hh

   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
  38 namespace Trace {
  39
  40 class 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__