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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/sim_exit.hh"
44 class EndQuiesceEvent;
45 class FunctionProfile;
48 class FunctionalMemory;
53 * Class that has various thread state, such as the status, the
54 * current instruction being processed, whether or not the thread has
55 * a trap pending or is being externally updated, the ThreadContext
56 * pointer, etc. It also handles anything related to a specific
57 * thread's process, such as syscalls and checking valid addresses.
60 struct O3ThreadState : public ThreadState {
61 typedef ThreadContext::Status Status;
62 typedef typename Impl::O3CPU O3CPU;
65 /** Pointer to the CPU. */
68 /** Whether or not the thread is currently in syscall mode, and
69 * thus able to be externally updated without squashing.
73 /** Whether or not the thread is currently waiting on a trap, and
74 * thus able to be externally updated without squashing.
79 O3ThreadState(O3CPU *_cpu, int _thread_num)
80 : ThreadState(_cpu, -1, _thread_num),
81 cpu(_cpu), inSyscall(0), trapPending(0)
83 if (cpu->params->profile) {
84 profile = new FunctionProfile(cpu->params->system->kernelSymtab);
86 new MakeCallback<O3ThreadState,
87 &O3ThreadState::dumpFuncProfile>(this);
88 registerExitCallback(cb);
91 // let's fill with a dummy node for now so we don't get a segfault
92 // on the first cycle when there's no node available.
93 static ProfileNode dummyNode;
94 profileNode = &dummyNode;
98 O3ThreadState(O3CPU *_cpu, int _thread_num, Process *_process, int _asid)
99 : ThreadState(_cpu, -1, _thread_num, _process, _asid),
100 cpu(_cpu), inSyscall(0), trapPending(0)
104 /** Pointer to the ThreadContext of this thread. */
107 /** Returns a pointer to the TC of this thread. */
108 ThreadContext *getTC() { return tc; }
111 /** Handles the syscall. */
112 void syscall(int64_t callnum) { process->syscall(callnum, tc); }
116 void dumpFuncProfile()
118 std::ostream *os = simout.create(csprintf("profile.%s.dat", cpu->name()));
119 profile->dump(tc, *os);
124 #endif // __CPU_O3_THREAD_STATE_HH__