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31 #ifndef __CPU_O3_THREAD_STATE_HH__
32 #define __CPU_O3_THREAD_STATE_HH__
34 #include "base/callback.hh"
35 #include "base/output.hh"
36 #include "cpu/thread_context.hh"
37 #include "cpu/thread_state.hh"
38 #include "sim/full_system.hh"
39 #include "sim/sim_exit.hh"
41 class EndQuiesceEvent;
43 class FunctionalMemory;
44 class FunctionProfile;
49 * Class that has various thread state, such as the status, the
50 * current instruction being processed, whether or not the thread has
51 * a trap pending or is being externally updated, the ThreadContext
52 * pointer, etc. It also handles anything related to a specific
53 * thread's process, such as syscalls and checking valid addresses.
56 struct O3ThreadState : public ThreadState {
57 typedef ThreadContext::Status Status;
58 typedef typename Impl::O3CPU O3CPU;
61 /** 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 O3ThreadState(O3CPU *_cpu, int _thread_num, Process *_process)
75 : ThreadState(_cpu, _thread_num, _process),
76 cpu(_cpu), inSyscall(0), trapPending(0)
79 if (cpu->params()->profile) {
80 profile = new FunctionProfile(
81 cpu->params()->system->kernelSymtab);
83 new MakeCallback<O3ThreadState,
84 &O3ThreadState::dumpFuncProfile>(this);
85 registerExitCallback(cb);
88 // let's fill with a dummy node for now so we don't get a segfault
89 // on the first cycle when there's no node available.
90 static ProfileNode dummyNode;
91 profileNode = &dummyNode;
96 /** Pointer to the ThreadContext of this thread. */
99 /** Returns a pointer to the TC of this thread. */
100 ThreadContext *getTC() { return tc; }
102 /** Handles the syscall. */
103 void syscall(int64_t callnum) { process->syscall(callnum, tc); }
105 void dumpFuncProfile()
107 std::ostream *os = simout.create(csprintf("profile.%s.dat", cpu->name()));
108 profile->dump(tc, *os);
112 #endif // __CPU_O3_THREAD_STATE_HH__