2 * Copyright (c) 2006 The Regents of The University of Michigan
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31 #ifndef __CPU_INORDER_THREAD_STATE_HH__
32 #define __CPU_INORDER_THREAD_STATE_HH__
34 #include "arch/isa_traits.hh"
35 #include "base/callback.hh"
36 #include "base/output.hh"
37 #include "cpu/thread_context.hh"
38 #include "cpu/thread_state.hh"
39 #include "sim/sim_exit.hh"
41 class EndQuiesceEvent;
43 class FunctionalMemory;
44 class FunctionProfile;
50 * Class that has various thread state, such as the status, the
51 * current instruction being processed, whether or not the thread has
52 * a trap pending or is being externally updated, the ThreadContext
53 * pointer, etc. It also handles anything related to a specific
54 * thread's process, such as syscalls and checking valid addresses.
56 class InOrderThreadState : public ThreadState {
57 typedef ThreadContext::Status Status;
60 /** Pointer to the CPU. */
64 /** Whether or not the thread is currently in syscall mode, and
65 * thus able to be externally updated without squashing.
69 /** Whether or not the thread is currently waiting on a trap, and
70 * thus able to be externally updated without squashing.
74 InOrderThreadState(InOrderCPU *_cpu, ThreadID _thread_num,
76 : ThreadState(reinterpret_cast<BaseCPU*>(_cpu), _thread_num,
78 cpu(_cpu), inSyscall(0), trapPending(0), lastGradIsBranch(false)
81 /** Handles the syscall. */
82 void syscall(int64_t callnum) { process->syscall(callnum, tc); }
84 void dumpFuncProfile();
86 /** Pointer to the ThreadContext of this thread. */
89 /** Returns a pointer to the TC of this thread. */
90 ThreadContext *getTC() { return tc; }
92 /** Is last instruction graduated a branch? */
93 bool lastGradIsBranch;
94 TheISA::PCState lastBranchPC;
97 #endif // __CPU_INORDER_THREAD_STATE_HH__